From afbc7da5107bc84f241db4a97943bb44b493cf83 Mon Sep 17 00:00:00 2001 From: brettlangdon Date: Tue, 25 Feb 2020 17:15:19 -0500 Subject: [PATCH] Merge in latest from datadog/dd-trace-py --- .circleci/config.yml | 1122 ++ .github/CODEOWNERS | 1 + .github/ISSUE_TEMPLATE.md | 19 + .gitignore | 98 +- LICENSE.Apache | 200 + LICENSE.BSD3 | 24 + NOTICE | 4 + Rakefile | 77 + conftest.py | 55 + ddtrace/__init__.py | 51 + ddtrace/_worker.py | 82 + ddtrace/api.py | 279 + ddtrace/bootstrap/__init__.py | 0 ddtrace/bootstrap/sitecustomize.py | 150 + ddtrace/commands/__init__.py | 0 ddtrace/commands/ddtrace_run.py | 82 + ddtrace/compat.py | 151 + ddtrace/constants.py | 15 + ddtrace/context.py | 216 + ddtrace/contrib/__init__.py | 1 + ddtrace/contrib/aiobotocore/__init__.py | 30 + ddtrace/contrib/aiobotocore/patch.py | 129 + ddtrace/contrib/aiohttp/__init__.py | 61 + ddtrace/contrib/aiohttp/middlewares.py | 146 + ddtrace/contrib/aiohttp/patch.py | 39 + ddtrace/contrib/aiohttp/template.py | 29 + 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tests/test_hook.py create mode 100644 tests/test_instance_config.py create mode 100644 tests/test_integration.py create mode 100644 tests/test_payload.py create mode 100644 tests/test_pin.py create mode 100644 tests/test_sampler.py create mode 100644 tests/test_span.py create mode 100644 tests/test_tracer.py create mode 100644 tests/test_utils.py create mode 100644 tests/test_worker.py create mode 100644 tests/unit/__init__.py create mode 100644 tests/unit/http/__init__.py create mode 100644 tests/unit/http/test_headers.py create mode 100644 tests/unit/test_settings.py create mode 100644 tests/unit/utils/__init__.py create mode 100644 tests/unit/utils/test_http.py create mode 100644 tests/unit/utils/test_time.py create mode 100644 tests/util.py create mode 100644 tests/utils/__init__.py create mode 100644 tests/utils/span.py create mode 100644 tests/utils/test_module/__init__.py create mode 100644 tests/utils/tracer.py create mode 100644 tests/vendor/__init__.py create mode 100644 tests/vendor/test_dogstatsd.py create mode 100644 tests/wait-for-services.py create mode 100644 tox.ini diff --git a/.circleci/config.yml b/.circleci/config.yml new file mode 100644 index 0000000000..09150d9cd3 --- /dev/null +++ b/.circleci/config.yml @@ -0,0 +1,1122 @@ +version: 2 + + +# Common configuration blocks as YAML anchors +# See: https://circleci.com/blog/circleci-hacks-reuse-yaml-in-your-circleci-config-with-yaml/ +httpbin_local: &httpbin_local + image: kennethreitz/httpbin@sha256:2c7abc4803080c22928265744410173b6fea3b898872c01c5fd0f0f9df4a59fb + name: httpbin.org +test_runner: &test_runner + image: datadog/docker-library:ddtrace_py +restore_cache_step: &restore_cache_step + restore_cache: + keys: + # In the cache key: + # - .Environment.CIRCLE_JOB: We do separate tox environments by job name, so caching and restoring is + # much faster. + - tox-cache-{{ .Environment.CIRCLE_JOB }}-{{ checksum "tox.ini" }} +resource_class: &resource_class small +save_cache_step: &save_cache_step + save_cache: + key: tox-cache-{{ .Environment.CIRCLE_JOB }}-{{ checksum "tox.ini" }} + paths: + - .tox +deploy_docs_filters: &deploy_docs_filters + filters: + tags: + only: /(^docs$)|(^v[0-9]+(\.[0-9]+)*$)/ + branches: + ignore: /.*/ +persist_to_workspace_step: &persist_to_workspace_step + persist_to_workspace: + root: /tmp + paths: + - "*.results" + + +jobs: + black: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: tox -e 'black' --result-json /tmp/black.results + - *persist_to_workspace_step + - *save_cache_step + + flake8: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: tox -e 'flake8' --result-json /tmp/flake8.results + - *persist_to_workspace_step + - *save_cache_step + + # Test that we can build the package properly and package long description will render + test_build: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + # Create and activate a Python3.7 virtualenv + - run: virtualenv --python python3.7 .venv/build + + # Install required dependencies + # DEV: `pyopenssl` needed until the following PR is released + # https://github.com/pypa/twine/pull/447 + # DEV: `wheel` is needed to run `bdist_wheel` + - run: .venv/build/bin/pip install twine readme_renderer[md] pyopenssl wheel + # Ensure we didn't cache from previous runs + - run: rm -rf build/ dist/ + # Manually build any extensions to ensure they succeed + # DEV: `DDTRACE_BUILD_RAISE=TRUE` will ensure we don't swallow any build errors + - run: DDTRACE_BUILD_RAISE=TRUE .venv/build/bin/python setup.py build_ext --force + # Ensure source package will build + - run: .venv/build/bin/python setup.py sdist + # Ensure wheel will build + # DEV: `DDTRACE_BUILD_RAISE=TRUE` will ensure we don't swallow any build errors + - run: DDTRACE_BUILD_RAISE=TRUE .venv/build/bin/python setup.py bdist_wheel + # Ensure package long description is valid and will render + # https://github.com/pypa/twine/tree/6c4d5ecf2596c72b89b969ccc37b82c160645df8#twine-check + - run: .venv/build/bin/twine check dist/* + + tracer: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^py..-tracer$' + - *persist_to_workspace_step + - *save_cache_step + + internal: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^py..-internal' + - *persist_to_workspace_step + - *save_cache_step + + opentracer: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^py..-opentracer' + - *persist_to_workspace_step + - *save_cache_step + + integration: + docker: + - <<: *test_runner + env: + TEST_DATADOG_INTEGRATION: 1 + - image: datadog/docker-dd-agent + env: + - DD_APM_ENABLED=true + - DD_BIND_HOST=0.0.0.0 + - DD_API_KEY=invalid_key_but_this_is_fine + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^py..-integration$' + - *persist_to_workspace_step + - *save_cache_step + + futures: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^futures_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + boto: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^boto\(core\)\?_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + ddtracerun: + docker: + - *test_runner + - image: redis:4.0-alpine + resource_class: *resource_class + steps: + - checkout + - run: scripts/run-tox-scenario '^py..-ddtracerun$' + - *persist_to_workspace_step + + test_utils: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^py..-test_utils$' + - *persist_to_workspace_step + - *save_cache_step + + test_logging: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^py..-test_logging$' + - *persist_to_workspace_step + - *save_cache_step + + asyncio: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^asyncio_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + pylons: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^pylons_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + aiohttp: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^aiohttp_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + tornado: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^tornado_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + bottle: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^bottle_contrib\(_autopatch\)\?-' + - *persist_to_workspace_step + - *save_cache_step + + cassandra: + docker: + - <<: *test_runner + env: + CASS_DRIVER_NO_EXTENSIONS: 1 + - image: spotify/cassandra:latest + env: + - MAX_HEAP_SIZE=512M + - HEAP_NEWSIZE=256M + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: tox -e wait cassandra + - run: scripts/run-tox-scenario '^cassandra_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + celery: + docker: + - *test_runner + - image: redis:4.0-alpine + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^celery_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + consul: + docker: + - *test_runner + - image: consul:1.6.0 + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^consul_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + dogpile_cache: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^dogpile_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + elasticsearch: + docker: + - *test_runner + - image: elasticsearch:2.3 + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^elasticsearch_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + falcon: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: tox -e 'falcon_contrib{,_autopatch}-{py27,py34,py35,py36}-falcon{10,11,12,13,14}' --result-json /tmp/falcon.results + - *persist_to_workspace_step + - *save_cache_step + + django: + docker: + - *test_runner + - image: redis:4.0-alpine + - image: memcached:1.5-alpine + - image: datadog/docker-dd-agent + env: + - DD_APM_ENABLED=true + - DD_BIND_HOST=0.0.0.0 + - DD_API_KEY=invalid_key_but_this_is_fine + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^django_' + - *persist_to_workspace_step + - *save_cache_step + + flask: + docker: + - *test_runner + - image: redis:4.0-alpine + - image: memcached:1.5-alpine + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^flask_\(cache_\)\?contrib\(_autopatch\)\?-' + - *persist_to_workspace_step + - *save_cache_step + + gevent: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^gevent_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + httplib: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^httplib_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + grpc: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^grpc_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + molten: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^molten_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + mysqlconnector: + docker: + - *test_runner + - image: mysql:5.7 + env: + - MYSQL_ROOT_PASSWORD=admin + - MYSQL_PASSWORD=test + - MYSQL_USER=test + - MYSQL_DATABASE=test + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: tox -e 'wait' mysql + - run: scripts/run-tox-scenario '^mysql_contrib-.*-mysqlconnector' + - *persist_to_workspace_step + - *save_cache_step + + mysqlpython: + docker: + - *test_runner + - image: mysql:5.7 + env: + - MYSQL_ROOT_PASSWORD=admin + - MYSQL_PASSWORD=test + - MYSQL_USER=test + - MYSQL_DATABASE=test + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: tox -e 'wait' mysql + - run: scripts/run-tox-scenario '^mysqldb_contrib-.*-mysqlclient' + - *persist_to_workspace_step + - *save_cache_step + + mysqldb: + docker: + - *test_runner + - image: mysql:5.7 + env: + - MYSQL_ROOT_PASSWORD=admin + - MYSQL_PASSWORD=test + - MYSQL_USER=test + - MYSQL_DATABASE=test + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: tox -e 'wait' mysql + - run: scripts/run-tox-scenario '^mysqldb_contrib-.*-mysqldb' + - *persist_to_workspace_step + - *save_cache_step + + pymysql: + docker: + - *test_runner + - image: mysql:5.7 + env: + - MYSQL_ROOT_PASSWORD=admin + - MYSQL_PASSWORD=test + - MYSQL_USER=test + - MYSQL_DATABASE=test + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: tox -e 'wait' mysql + - run: scripts/run-tox-scenario '^pymysql_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + pylibmc: + docker: + - *test_runner + - image: memcached:1.5-alpine + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^pylibmc_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + pymemcache: + docker: + - *test_runner + - image: memcached:1.5-alpine + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^pymemcache_contrib\(_autopatch\)\?-' + - *persist_to_workspace_step + - *save_cache_step + + mongoengine: + docker: + - *test_runner + - image: mongo:3.6 + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^mongoengine_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + pymongo: + docker: + - *test_runner + - image: mongo:3.6 + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^pymongo_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + pyramid: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^pyramid_contrib\(_autopatch\)\?-' + - *persist_to_workspace_step + - *save_cache_step + + requests: + docker: + - *test_runner + - *httpbin_local + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^requests_contrib\(_autopatch\)\?-' + - *persist_to_workspace_step + - *save_cache_step + + requestsgevent: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^requests_gevent_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + sqlalchemy: + docker: + - *test_runner + - image: postgres:10.5-alpine + env: + - POSTGRES_PASSWORD=postgres + - POSTGRES_USER=postgres + - POSTGRES_DB=postgres + - image: mysql:5.7 + env: + - MYSQL_ROOT_PASSWORD=admin + - MYSQL_PASSWORD=test + - MYSQL_USER=test + - MYSQL_DATABASE=test + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: tox -e 'wait' postgres mysql + - run: scripts/run-tox-scenario '^sqlalchemy_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + dbapi: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^dbapi_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + psycopg: + docker: + - *test_runner + - image: postgres:10.5-alpine + env: + - POSTGRES_PASSWORD=postgres + - POSTGRES_USER=postgres + - POSTGRES_DB=postgres + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: tox -e 'wait' postgres + - run: scripts/run-tox-scenario '^psycopg_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + aiobotocore: + docker: + - *test_runner + - image: palazzem/moto:1.0.1 + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^aiobotocore_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + aiopg: + docker: + - *test_runner + - image: postgres:10.5-alpine + env: + - POSTGRES_PASSWORD=postgres + - POSTGRES_USER=postgres + - POSTGRES_DB=postgres + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: tox -e 'wait' postgres + - run: scripts/run-tox-scenario '^aiopg_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + redis: + docker: + - *test_runner + - image: redis:4.0-alpine + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^redis_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + rediscluster: + docker: + - *test_runner + - image: grokzen/redis-cluster:4.0.9 + env: + - IP=0.0.0.0 + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: tox -e wait rediscluster + - run: scripts/run-tox-scenario '^rediscluster_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + vertica: + docker: + - *test_runner + - image: sumitchawla/vertica + env: + - VP_TEST_USER=dbadmin + - VP_TEST_PASSWORD=abc123 + - VP_TEST_DATABASE=docker + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: tox -e wait vertica + - run: scripts/run-tox-scenario '^vertica_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + kombu: + docker: + - *test_runner + - image: rabbitmq:3.7-alpine + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: tox -e wait rabbitmq + - run: scripts/run-tox-scenario '^kombu_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + sqlite3: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^sqlite3_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + unit_tests: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^unit_tests-' + - *persist_to_workspace_step + - *save_cache_step + + benchmarks: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: + command: | + mkdir -p /tmp/test-reports + tox -e 'benchmarks-{py27,py34,py35,py36,py37}' --result-json /tmp/benchmarks.results -- --benchmark-storage=file:///tmp/test-reports/ --benchmark-autosave + - store_test_results: + path: /tmp/test-reports + - store_artifacts: + path: /tmp/test-reports + - *persist_to_workspace_step + - *save_cache_step + + deploy_dev: + # build the master branch releasing development docs and wheels + docker: + - image: circleci/python:3.6 + resource_class: *resource_class + steps: + - checkout + - run: sudo apt-get -y install rake + - run: sudo pip install mkwheelhouse sphinx awscli + - run: S3_DIR=trace-dev rake release:docs + - run: S3_DIR=trace-dev rake release:wheel + + jinja2: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^jinja2_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + mako: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^mako_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + algoliasearch: + docker: + - *test_runner + resource_class: *resource_class + steps: + - checkout + - *restore_cache_step + - run: scripts/run-tox-scenario '^algoliasearch_contrib-' + - *persist_to_workspace_step + - *save_cache_step + + build_docs: + # deploy official documentation + docker: + - image: circleci/python:3.6 + resource_class: *resource_class + steps: + - checkout + - run: sudo apt-get -y install rake + # Sphinx 1.7.5 is required otherwise docs are not properly built + - run: sudo pip install mkwheelhouse sphinx==1.7.5 wrapt + - run: rake docs + - run: + command: | + mkdir -p /tmp/docs + cp -r docs/_build/html/* /tmp/docs + - store_artifacts: + path: /tmp/docs + + deploy_to_s3: + # deploy official documentation + docker: + - image: circleci/python:3.6 + resource_class: *resource_class + steps: + - checkout + - run: sudo apt-get -y install rake + # Sphinx 1.7.5 is required otherwise docs are not properly built + - run: sudo pip install mkwheelhouse sphinx==1.7.5 awscli wrapt + - run: S3_DIR=trace rake release:docs + + wait_all_tests: + # this step ensures all `tox` environments are properly executed + docker: + - *test_runner + resource_class: *resource_class + steps: + - attach_workspace: + at: /tmp/workspace + - checkout + - run: ls /tmp/workspace/* + # debug: shows how many time each test was executed + - run: jq -s ".[]|.testenvs|keys|.[]" /tmp/workspace/* | grep -v GLOB | sed 's/"//g' | sort | uniq -c | sort -rn + # list all executed test + - run: jq -s ".[]|.testenvs|keys|.[]" /tmp/workspace/* | grep -v GLOB | sed 's/"//g' | sort | uniq | tee all_executed_tests + # list all tests in tox.ini + - run: tox -l | grep -v "^wait$" | sort > all_tests + # checks that all tests were executed + - run: diff all_tests all_executed_tests + + +workflows: + version: 2 + + deploy_docs: + jobs: + - build_docs: + <<: *deploy_docs_filters + - approve_docs_deployment: + <<: *deploy_docs_filters + type: approval + requires: + - build_docs + - deploy_to_s3: + <<: *deploy_docs_filters + requires: + - approve_docs_deployment + test: + jobs: + - build_docs + - black + - flake8 + - test_build + - aiobotocore: + requires: + - flake8 + - black + - aiohttp: + requires: + - flake8 + - black + - aiopg: + requires: + - flake8 + - black + - asyncio: + requires: + - flake8 + - black + - algoliasearch: + requires: + - flake8 + - black + - benchmarks: + requires: + - flake8 + - black + - boto: + requires: + - flake8 + - black + - bottle: + requires: + - flake8 + - black + - cassandra: + requires: + - flake8 + - black + - celery: + requires: + - flake8 + - black + - consul: + requires: + - flake8 + - black + - dbapi: + requires: + - flake8 + - black + - ddtracerun: + requires: + - flake8 + - black + - django: + requires: + - flake8 + - black + - dogpile_cache: + requires: + - flake8 + - black + - elasticsearch: + requires: + - flake8 + - black + - falcon: + requires: + - flake8 + - black + - flask: + requires: + - flake8 + - black + - futures: + requires: + - flake8 + - black + - gevent: + requires: + - flake8 + - black + - grpc: + requires: + - flake8 + - black + - httplib: + requires: + - flake8 + - black + - integration: + requires: + - flake8 + - black + - internal: + requires: + - flake8 + - black + - jinja2: + requires: + - flake8 + - black + - kombu: + requires: + - flake8 + - black + - mako: + requires: + - flake8 + - black + - molten: + requires: + - flake8 + - black + - mongoengine: + requires: + - flake8 + - black + - mysqlconnector: + requires: + - flake8 + - black + - mysqldb: + requires: + - flake8 + - black + - mysqlpython: + requires: + - flake8 + - black + - opentracer: + requires: + - flake8 + - black + - psycopg: + requires: + - flake8 + - black + - pylibmc: + requires: + - flake8 + - black + - pylons: + requires: + - flake8 + - black + - pymemcache: + requires: + - flake8 + - black + - pymongo: + requires: + - flake8 + - black + - pymysql: + requires: + - flake8 + - black + - pyramid: + requires: + - flake8 + - black + - redis: + requires: + - flake8 + - black + - rediscluster: + requires: + - flake8 + - black + - requests: + requires: + - flake8 + - black + - requestsgevent: + requires: + - flake8 + - black + - sqlalchemy: + requires: + - flake8 + - black + - sqlite3: + requires: + - flake8 + - black + - test_utils: + requires: + - flake8 + - black + - test_logging: + requires: + - flake8 + - black + - tornado: + requires: + - flake8 + - black + - tracer: + requires: + - flake8 + - black + - unit_tests: + requires: + - flake8 + - black + - vertica: + requires: + - flake8 + - black + - wait_all_tests: + requires: + # Initial jobs + - build_docs + - black + - flake8 + - test_build + + # flake8 dependent jobs + - aiobotocore + - aiohttp + - aiopg + - asyncio + - algoliasearch + - benchmarks + - boto + - bottle + - cassandra + - celery + - consul + - dbapi + - ddtracerun + - dogpile_cache + - django + - elasticsearch + - falcon + - flask + - futures + - gevent + - grpc + - httplib + - integration + - internal + - jinja2 + - kombu + - mako + - molten + - mongoengine + - mysqlconnector + - mysqldb + - mysqlpython + - opentracer + - psycopg + - pylibmc + - pylons + - pymemcache + - pymongo + - pymysql + - pyramid + - redis + - rediscluster + - requests + - requestsgevent + - sqlalchemy + - sqlite3 + - test_utils + - test_logging + - tornado + - tracer + - unit_tests + - vertica + - deploy_dev: + requires: + - wait_all_tests + filters: + branches: + only: master diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS new file mode 100644 index 0000000000..1b5e95ea44 --- /dev/null +++ b/.github/CODEOWNERS @@ -0,0 +1 @@ +* @DataDog/apm-python diff --git a/.github/ISSUE_TEMPLATE.md b/.github/ISSUE_TEMPLATE.md new file mode 100644 index 0000000000..088ff1e00b --- /dev/null +++ b/.github/ISSUE_TEMPLATE.md @@ -0,0 +1,19 @@ +Thanks for taking the time for reporting an issue! + +Before reporting an issue on dd-trace-py, please be sure to provide all +necessary information. + +If you're hitting a bug, make sure that you're using the latest version of this +library. + +### Which version of dd-trace-py are you using? + +### Which version of the libraries are you using? + +You can copy/paste the output of `pip freeze` here. + +### How can we reproduce your problem? + +### What is the result that you get? + +### What is result that you expected? diff --git a/.gitignore b/.gitignore index 473ef20a4a..b055ac56b8 100644 --- a/.gitignore +++ b/.gitignore @@ -1,5 +1,7 @@ +# Byte-compiled / optimized / DLL files +__pycache__/ *.py[cod] -*.sw[op] +*$py.class # C extensions *.so @@ -18,7 +20,6 @@ develop-eggs .installed.cfg lib lib64 -__pycache__ venv*/ # Installer logs @@ -55,3 +56,96 @@ _build/ # mypy .mypy_cache/ target +======= +# Distribution / packaging +.Python +env/ +build/ +develop-eggs/ +dist/ +downloads/ +eggs/ +.eggs/ +lib64/ +parts/ +sdist/ +var/ +*.egg-info/ +.installed.cfg +*.egg +*.whl + +# PyInstaller +# Usually these files are written by a python script from a template +# before PyInstaller builds the exe, so as to inject date/other infos into it. +*.manifest +*.spec + +# Installer logs +pip-log.txt +pip-delete-this-directory.txt + +# Unit test / coverage reports +htmlcov/ +.tox/ +.ddtox/ +.coverage +.coverage.* +.cache +coverage.xml +*,cover +.hypothesis/ +.pytest_cache/ + +# Translations +*.mo +*.pot + +# Django stuff: +*.log +local_settings.py + +# Flask stuff: +instance/ +.webassets-cache + +# Scrapy stuff: +.scrapy + +# Sphinx documentation +docs/_build/ + +# PyBuilder +target/ + +# IPython Notebook +.ipynb_checkpoints + +# pyenv +.python-version + +# celery beat schedule file +celerybeat-schedule + +# docker-compose env file +# it must be versioned to keep track of backing services defaults +!.env + +# virtualenv +venv/ +ENV/ + +# Spyder project settings +.spyderproject + +# Rope project settings +.ropeproject + +# Vim +*.swp +# IDEA +.idea/ + +# VS Code +.vscode/ +>>>>>>> dd/master diff --git a/LICENSE.Apache b/LICENSE.Apache new file mode 100644 index 0000000000..bff56b5431 --- /dev/null +++ b/LICENSE.Apache @@ -0,0 +1,200 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright 2016 Datadog, Inc. + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/LICENSE.BSD3 b/LICENSE.BSD3 new file mode 100644 index 0000000000..e8f3a81c1c --- /dev/null +++ b/LICENSE.BSD3 @@ -0,0 +1,24 @@ +Copyright (c) 2016, Datadog +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of Datadog nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL DATADOG BE LIABLE FOR ANY +DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/NOTICE b/NOTICE new file mode 100644 index 0000000000..732c748d43 --- /dev/null +++ b/NOTICE @@ -0,0 +1,4 @@ +Datadog dd-trace-py +Copyright 2016-Present Datadog, Inc. + +This product includes software developed at Datadog, Inc. (https://www.datadoghq.com/). diff --git a/Rakefile b/Rakefile new file mode 100644 index 0000000000..ea90004a40 --- /dev/null +++ b/Rakefile @@ -0,0 +1,77 @@ +desc "build the docs" +task :docs do + sh "pip install sphinx" + Dir.chdir 'docs' do + sh "make html" + end +end + +# Deploy tasks +S3_DIR = ENV['S3_DIR'] +S3_BUCKET = "pypi.datadoghq.com" + +desc "release the a new wheel" +task :'release:wheel' do + fail "Missing environment variable S3_DIR" if !S3_DIR or S3_DIR.empty? + + # Use custom `mkwheelhouse` to upload wheels and source distribution from dist/ to S3 bucket + sh "scripts/mkwheelhouse" +end + +desc "release the docs website" +task :'release:docs' => :docs do + fail "Missing environment variable S3_DIR" if !S3_DIR or S3_DIR.empty? + sh "aws s3 cp --recursive docs/_build/html/ s3://#{S3_BUCKET}/#{S3_DIR}/docs/" +end + +namespace :pypi do + RELEASE_DIR = './dist/' + + def get_version() + return `python setup.py --version`.strip + end + + def get_branch() + return `git name-rev --name-only HEAD`.strip + end + + task :confirm do + ddtrace_version = get_version + + if get_branch.downcase != 'tags/v#{ddtrace_version}' + print "WARNING: Expected current commit to be tagged as 'tags/v#{ddtrace_version}, instead we are on '#{get_branch}', proceed anyways [y|N]? " + $stdout.flush + + abort if $stdin.gets.to_s.strip.downcase != 'y' + end + + puts "WARNING: This task will build and release new wheels to https://pypi.org/project/ddtrace/, this action cannot be undone" + print " To proceed please type the version '#{ddtrace_version}': " + $stdout.flush + + abort if $stdin.gets.to_s.strip.downcase != ddtrace_version + end + + task :clean do + FileUtils.rm_rf(RELEASE_DIR) + end + + task :install do + sh 'pip install twine' + end + + task :build => :clean do + puts "building release in #{RELEASE_DIR}" + sh "scripts/build-dist" + end + + task :release => [:confirm, :install, :build] do + builds = Dir.entries(RELEASE_DIR).reject {|f| f == '.' || f == '..'} + if builds.length == 0 + fail "no build found in #{RELEASE_DIR}" + end + + puts "uploading #{RELEASE_DIR}/*" + sh "twine upload #{RELEASE_DIR}/*" + end +end diff --git a/conftest.py b/conftest.py new file mode 100644 index 0000000000..9e3fef991e --- /dev/null +++ b/conftest.py @@ -0,0 +1,55 @@ +""" +This file configures a local pytest plugin, which allows us to configure plugin hooks to control the +execution of our tests. Either by loading in fixtures, configuring directories to ignore, etc + +Local plugins: https://docs.pytest.org/en/3.10.1/writing_plugins.html#local-conftest-plugins +Hook reference: https://docs.pytest.org/en/3.10.1/reference.html#hook-reference +""" +import os +import re +import sys + +import pytest + +PY_DIR_PATTERN = re.compile(r"^py[23][0-9]$") + + +# Determine if the folder should be ignored +# https://docs.pytest.org/en/3.10.1/reference.html#_pytest.hookspec.pytest_ignore_collect +# DEV: We can only ignore folders/modules, we cannot ignore individual files +# DEV: We must wrap with `@pytest.mark.hookwrapper` to inherit from default (e.g. honor `--ignore`) +# https://github.com/pytest-dev/pytest/issues/846#issuecomment-122129189 +@pytest.mark.hookwrapper +def pytest_ignore_collect(path, config): + """ + Skip directories defining a required minimum Python version + + Example:: + + File: tests/contrib/vertica/py35/test.py + Python 2.7: Skip + Python 3.4: Skip + Python 3.5: Collect + Python 3.6: Collect + """ + # Execute original behavior first + # DEV: We need to set `outcome.force_result(True)` if we need to override + # these results and skip this directory + outcome = yield + + # Was not ignored by default behavior + if not outcome.get_result(): + # DEV: `path` is a `LocalPath` + path = str(path) + if not os.path.isdir(path): + path = os.path.dirname(path) + dirname = os.path.basename(path) + + # Directory name match `py[23][0-9]` + if PY_DIR_PATTERN.match(dirname): + # Split out version numbers into a tuple: `py35` -> `(3, 5)` + min_required = tuple((int(v) for v in dirname.strip("py"))) + + # If the current Python version does not meet the minimum required, skip this directory + if sys.version_info[0:2] < min_required: + outcome.force_result(True) diff --git a/ddtrace/__init__.py b/ddtrace/__init__.py new file mode 100644 index 0000000000..d3c4d60a07 --- /dev/null +++ b/ddtrace/__init__.py @@ -0,0 +1,51 @@ +import sys + +import pkg_resources + +from .monkey import patch, patch_all +from .pin import Pin +from .span import Span +from .tracer import Tracer +from .settings import config + + +try: + __version__ = pkg_resources.get_distribution(__name__).version +except pkg_resources.DistributionNotFound: + # package is not installed + __version__ = None + + +# a global tracer instance with integration settings +tracer = Tracer() + +__all__ = [ + 'patch', + 'patch_all', + 'Pin', + 'Span', + 'tracer', + 'Tracer', + 'config', +] + + +_ORIGINAL_EXCEPTHOOK = sys.excepthook + + +def _excepthook(tp, value, traceback): + tracer.global_excepthook(tp, value, traceback) + if _ORIGINAL_EXCEPTHOOK: + return _ORIGINAL_EXCEPTHOOK(tp, value, traceback) + + +def install_excepthook(): + """Install a hook that intercepts unhandled exception and send metrics about them.""" + global _ORIGINAL_EXCEPTHOOK + _ORIGINAL_EXCEPTHOOK = sys.excepthook + sys.excepthook = _excepthook + + +def uninstall_excepthook(): + """Uninstall the global tracer except hook.""" + sys.excepthook = _ORIGINAL_EXCEPTHOOK diff --git a/ddtrace/_worker.py b/ddtrace/_worker.py new file mode 100644 index 0000000000..ed25db4183 --- /dev/null +++ b/ddtrace/_worker.py @@ -0,0 +1,82 @@ +import atexit +import threading +import os + +from .internal.logger import get_logger + +_LOG = get_logger(__name__) + + +class PeriodicWorkerThread(object): + """Periodic worker thread. + + This class can be used to instantiate a worker thread that will run its `run_periodic` function every `interval` + seconds. + + The method `on_shutdown` will be called on worker shutdown. The worker will be shutdown when the program exits and + can be waited for with the `exit_timeout` parameter. + + """ + + _DEFAULT_INTERVAL = 1.0 + + def __init__(self, interval=_DEFAULT_INTERVAL, exit_timeout=None, name=None, daemon=True): + """Create a new worker thread that runs a function periodically. + + :param interval: The interval in seconds to wait between calls to `run_periodic`. + :param exit_timeout: The timeout to use when exiting the program and waiting for the thread to finish. + :param name: Name of the worker. + :param daemon: Whether the worker should be a daemon. + """ + + self._thread = threading.Thread(target=self._target, name=name) + self._thread.daemon = daemon + self._stop = threading.Event() + self.interval = interval + self.exit_timeout = exit_timeout + atexit.register(self._atexit) + + def _atexit(self): + self.stop() + if self.exit_timeout is not None: + key = 'ctrl-break' if os.name == 'nt' else 'ctrl-c' + _LOG.debug( + 'Waiting %d seconds for %s to finish. Hit %s to quit.', + self.exit_timeout, self._thread.name, key, + ) + self.join(self.exit_timeout) + + def start(self): + """Start the periodic worker.""" + _LOG.debug('Starting %s thread', self._thread.name) + self._thread.start() + + def stop(self): + """Stop the worker.""" + _LOG.debug('Stopping %s thread', self._thread.name) + self._stop.set() + + def is_alive(self): + return self._thread.is_alive() + + def join(self, timeout=None): + return self._thread.join(timeout) + + def _target(self): + while not self._stop.wait(self.interval): + self.run_periodic() + self._on_shutdown() + + @staticmethod + def run_periodic(): + """Method executed every interval.""" + pass + + def _on_shutdown(self): + _LOG.debug('Shutting down %s thread', self._thread.name) + self.on_shutdown() + + @staticmethod + def on_shutdown(): + """Method ran on worker shutdown.""" + pass diff --git a/ddtrace/api.py b/ddtrace/api.py new file mode 100644 index 0000000000..5654d098b7 --- /dev/null +++ b/ddtrace/api.py @@ -0,0 +1,279 @@ +# stdlib +import ddtrace +from json import loads +import socket + +# project +from .encoding import get_encoder, JSONEncoder +from .compat import httplib, PYTHON_VERSION, PYTHON_INTERPRETER, get_connection_response +from .internal.logger import get_logger +from .internal.runtime import container +from .payload import Payload, PayloadFull +from .utils.deprecation import deprecated +from .utils import time + + +log = get_logger(__name__) + + +_VERSIONS = {'v0.4': {'traces': '/v0.4/traces', + 'services': '/v0.4/services', + 'compatibility_mode': False, + 'fallback': 'v0.3'}, + 'v0.3': {'traces': '/v0.3/traces', + 'services': '/v0.3/services', + 'compatibility_mode': False, + 'fallback': 'v0.2'}, + 'v0.2': {'traces': '/v0.2/traces', + 'services': '/v0.2/services', + 'compatibility_mode': True, + 'fallback': None}} + + +class Response(object): + """ + Custom API Response object to represent a response from calling the API. + + We do this to ensure we know expected properties will exist, and so we + can call `resp.read()` and load the body once into an instance before we + close the HTTPConnection used for the request. + """ + __slots__ = ['status', 'body', 'reason', 'msg'] + + def __init__(self, status=None, body=None, reason=None, msg=None): + self.status = status + self.body = body + self.reason = reason + self.msg = msg + + @classmethod + def from_http_response(cls, resp): + """ + Build a ``Response`` from the provided ``HTTPResponse`` object. + + This function will call `.read()` to consume the body of the ``HTTPResponse`` object. + + :param resp: ``HTTPResponse`` object to build the ``Response`` from + :type resp: ``HTTPResponse`` + :rtype: ``Response`` + :returns: A new ``Response`` + """ + return cls( + status=resp.status, + body=resp.read(), + reason=getattr(resp, 'reason', None), + msg=getattr(resp, 'msg', None), + ) + + def get_json(self): + """Helper to parse the body of this request as JSON""" + try: + body = self.body + if not body: + log.debug('Empty reply from Datadog Agent, %r', self) + return + + if not isinstance(body, str) and hasattr(body, 'decode'): + body = body.decode('utf-8') + + if hasattr(body, 'startswith') and body.startswith('OK'): + # This typically happens when using a priority-sampling enabled + # library with an outdated agent. It still works, but priority sampling + # will probably send too many traces, so the next step is to upgrade agent. + log.debug('Cannot parse Datadog Agent response, please make sure your Datadog Agent is up to date') + return + + return loads(body) + except (ValueError, TypeError): + log.debug('Unable to parse Datadog Agent JSON response: %r', body, exc_info=True) + + def __repr__(self): + return '{0}(status={1!r}, body={2!r}, reason={3!r}, msg={4!r})'.format( + self.__class__.__name__, + self.status, + self.body, + self.reason, + self.msg, + ) + + +class UDSHTTPConnection(httplib.HTTPConnection): + """An HTTP connection established over a Unix Domain Socket.""" + + # It's "important" to keep the hostname and port arguments here; while there are not used by the connection + # mechanism, they are actually used as HTTP headers such as `Host`. + def __init__(self, path, https, *args, **kwargs): + if https: + httplib.HTTPSConnection.__init__(self, *args, **kwargs) + else: + httplib.HTTPConnection.__init__(self, *args, **kwargs) + self.path = path + + def connect(self): + sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) + sock.connect(self.path) + self.sock = sock + + +class API(object): + """ + Send data to the trace agent using the HTTP protocol and JSON format + """ + + TRACE_COUNT_HEADER = 'X-Datadog-Trace-Count' + + # Default timeout when establishing HTTP connection and sending/receiving from socket. + # This ought to be enough as the agent is local + TIMEOUT = 2 + + def __init__(self, hostname, port, uds_path=None, https=False, headers=None, encoder=None, priority_sampling=False): + """Create a new connection to the Tracer API. + + :param hostname: The hostname. + :param port: The TCP port to use. + :param uds_path: The path to use if the connection is to be established with a Unix Domain Socket. + :param headers: The headers to pass along the request. + :param encoder: The encoder to use to serialize data. + :param priority_sampling: Whether to use priority sampling. + """ + self.hostname = hostname + self.port = int(port) + self.uds_path = uds_path + self.https = https + + self._headers = headers or {} + self._version = None + + if priority_sampling: + self._set_version('v0.4', encoder=encoder) + else: + self._set_version('v0.3', encoder=encoder) + + self._headers.update({ + 'Datadog-Meta-Lang': 'python', + 'Datadog-Meta-Lang-Version': PYTHON_VERSION, + 'Datadog-Meta-Lang-Interpreter': PYTHON_INTERPRETER, + 'Datadog-Meta-Tracer-Version': ddtrace.__version__, + }) + + # Add container information if we have it + self._container_info = container.get_container_info() + if self._container_info and self._container_info.container_id: + self._headers.update({ + 'Datadog-Container-Id': self._container_info.container_id, + }) + + def __str__(self): + if self.uds_path: + return 'unix://' + self.uds_path + if self.https: + scheme = 'https://' + else: + scheme = 'http://' + return '%s%s:%s' % (scheme, self.hostname, self.port) + + def _set_version(self, version, encoder=None): + if version not in _VERSIONS: + version = 'v0.2' + if version == self._version: + return + self._version = version + self._traces = _VERSIONS[version]['traces'] + self._services = _VERSIONS[version]['services'] + self._fallback = _VERSIONS[version]['fallback'] + self._compatibility_mode = _VERSIONS[version]['compatibility_mode'] + if self._compatibility_mode: + self._encoder = JSONEncoder() + else: + self._encoder = encoder or get_encoder() + # overwrite the Content-type with the one chosen in the Encoder + self._headers.update({'Content-Type': self._encoder.content_type}) + + def _downgrade(self): + """ + Downgrades the used encoder and API level. This method must fallback to a safe + encoder and API, so that it will success despite users' configurations. This action + ensures that the compatibility mode is activated so that the downgrade will be + executed only once. + """ + self._set_version(self._fallback) + + def send_traces(self, traces): + """Send traces to the API. + + :param traces: A list of traces. + :return: The list of API HTTP responses. + """ + if not traces: + return [] + + with time.StopWatch() as sw: + responses = [] + payload = Payload(encoder=self._encoder) + for trace in traces: + try: + payload.add_trace(trace) + except PayloadFull: + # Is payload full or is the trace too big? + # If payload is not empty, then using a new Payload might allow us to fit the trace. + # Let's flush the Payload and try to put the trace in a new empty Payload. + if not payload.empty: + responses.append(self._flush(payload)) + # Create a new payload + payload = Payload(encoder=self._encoder) + try: + # Add the trace that we were unable to add in that iteration + payload.add_trace(trace) + except PayloadFull: + # If the trace does not fit in a payload on its own, that's bad. Drop it. + log.warning('Trace %r is too big to fit in a payload, dropping it', trace) + + # Check that the Payload is not empty: + # it could be empty if the last trace was too big to fit. + if not payload.empty: + responses.append(self._flush(payload)) + + log.debug('reported %d traces in %.5fs', len(traces), sw.elapsed()) + + return responses + + def _flush(self, payload): + try: + response = self._put(self._traces, payload.get_payload(), payload.length) + except (httplib.HTTPException, OSError, IOError) as e: + return e + + # the API endpoint is not available so we should downgrade the connection and re-try the call + if response.status in [404, 415] and self._fallback: + log.debug("calling endpoint '%s' but received %s; downgrading API", self._traces, response.status) + self._downgrade() + return self._flush(payload) + + return response + + @deprecated(message='Sending services to the API is no longer necessary', version='1.0.0') + def send_services(self, *args, **kwargs): + return + + def _put(self, endpoint, data, count): + headers = self._headers.copy() + headers[self.TRACE_COUNT_HEADER] = str(count) + + if self.uds_path is None: + if self.https: + conn = httplib.HTTPSConnection(self.hostname, self.port, timeout=self.TIMEOUT) + else: + conn = httplib.HTTPConnection(self.hostname, self.port, timeout=self.TIMEOUT) + else: + conn = UDSHTTPConnection(self.uds_path, self.https, self.hostname, self.port, timeout=self.TIMEOUT) + + try: + conn.request('PUT', endpoint, data, headers) + + # Parse the HTTPResponse into an API.Response + # DEV: This will call `resp.read()` which must happen before the `conn.close()` below, + # if we call `.close()` then all future `.read()` calls will return `b''` + resp = get_connection_response(conn) + return Response.from_http_response(resp) + finally: + conn.close() diff --git a/ddtrace/bootstrap/__init__.py b/ddtrace/bootstrap/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/ddtrace/bootstrap/sitecustomize.py b/ddtrace/bootstrap/sitecustomize.py new file mode 100644 index 0000000000..cd3fecc368 --- /dev/null +++ b/ddtrace/bootstrap/sitecustomize.py @@ -0,0 +1,150 @@ +""" +Bootstrapping code that is run when using the `ddtrace-run` Python entrypoint +Add all monkey-patching that needs to run by default here +""" + +import os +import imp +import sys +import logging + +from ddtrace.utils.formats import asbool, get_env +from ddtrace.internal.logger import get_logger +from ddtrace import constants + +logs_injection = asbool(get_env("logs", "injection")) +DD_LOG_FORMAT = "%(asctime)s %(levelname)s [%(name)s] [%(filename)s:%(lineno)d] {}- %(message)s".format( + "[dd.trace_id=%(dd.trace_id)s dd.span_id=%(dd.span_id)s] " if logs_injection else "" +) + +if logs_injection: + # immediately patch logging if trace id injected + from ddtrace import patch + + patch(logging=True) + +debug = os.environ.get("DATADOG_TRACE_DEBUG") + +# Set here a default logging format for basicConfig + +# DEV: Once basicConfig is called here, future calls to it cannot be used to +# change the formatter since it applies the formatter to the root handler only +# upon initializing it the first time. +# See https://github.com/python/cpython/blob/112e4afd582515fcdcc0cde5012a4866e5cfda12/Lib/logging/__init__.py#L1550 +if debug and debug.lower() == "true": + logging.basicConfig(level=logging.DEBUG, format=DD_LOG_FORMAT) +else: + logging.basicConfig(format=DD_LOG_FORMAT) + +log = get_logger(__name__) + +EXTRA_PATCHED_MODULES = { + "bottle": True, + "django": True, + "falcon": True, + "flask": True, + "pylons": True, + "pyramid": True, +} + + +def update_patched_modules(): + modules_to_patch = os.environ.get("DATADOG_PATCH_MODULES") + if not modules_to_patch: + return + for patch in modules_to_patch.split(","): + if len(patch.split(":")) != 2: + log.debug("skipping malformed patch instruction") + continue + + module, should_patch = patch.split(":") + if should_patch.lower() not in ["true", "false"]: + log.debug("skipping malformed patch instruction for %s", module) + continue + + EXTRA_PATCHED_MODULES.update({module: should_patch.lower() == "true"}) + + +def add_global_tags(tracer): + tags = {} + for tag in os.environ.get("DD_TRACE_GLOBAL_TAGS", "").split(","): + tag_name, _, tag_value = tag.partition(":") + if not tag_name or not tag_value: + log.debug("skipping malformed tracer tag") + continue + + tags[tag_name] = tag_value + tracer.set_tags(tags) + + +try: + from ddtrace import tracer + + patch = True + + # Respect DATADOG_* environment variables in global tracer configuration + # TODO: these variables are deprecated; use utils method and update our documentation + # correct prefix should be DD_* + enabled = os.environ.get("DATADOG_TRACE_ENABLED") + hostname = os.environ.get("DD_AGENT_HOST", os.environ.get("DATADOG_TRACE_AGENT_HOSTNAME")) + port = os.environ.get("DATADOG_TRACE_AGENT_PORT") + priority_sampling = os.environ.get("DATADOG_PRIORITY_SAMPLING") + + opts = {} + + if enabled and enabled.lower() == "false": + opts["enabled"] = False + patch = False + if hostname: + opts["hostname"] = hostname + if port: + opts["port"] = int(port) + if priority_sampling: + opts["priority_sampling"] = asbool(priority_sampling) + + opts["collect_metrics"] = asbool(get_env("runtime_metrics", "enabled")) + + if opts: + tracer.configure(**opts) + + if logs_injection: + EXTRA_PATCHED_MODULES.update({"logging": True}) + + if patch: + update_patched_modules() + from ddtrace import patch_all + + patch_all(**EXTRA_PATCHED_MODULES) + + if "DATADOG_ENV" in os.environ: + tracer.set_tags({constants.ENV_KEY: os.environ["DATADOG_ENV"]}) + + if "DD_TRACE_GLOBAL_TAGS" in os.environ: + add_global_tags(tracer) + + # Ensure sitecustomize.py is properly called if available in application directories: + # * exclude `bootstrap_dir` from the search + # * find a user `sitecustomize.py` module + # * import that module via `imp` + bootstrap_dir = os.path.dirname(__file__) + path = list(sys.path) + + if bootstrap_dir in path: + path.remove(bootstrap_dir) + + try: + (f, path, description) = imp.find_module("sitecustomize", path) + except ImportError: + pass + else: + # `sitecustomize.py` found, load it + log.debug("sitecustomize from user found in: %s", path) + imp.load_module("sitecustomize", f, path, description) + + # Loading status used in tests to detect if the `sitecustomize` has been + # properly loaded without exceptions. This must be the last action in the module + # when the execution ends with a success. + loaded = True +except Exception: + loaded = False + log.warning("error configuring Datadog tracing", exc_info=True) diff --git a/ddtrace/commands/__init__.py b/ddtrace/commands/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/ddtrace/commands/ddtrace_run.py b/ddtrace/commands/ddtrace_run.py new file mode 100755 index 0000000000..a13bdec3c3 --- /dev/null +++ b/ddtrace/commands/ddtrace_run.py @@ -0,0 +1,82 @@ +#!/usr/bin/env python +from distutils import spawn +import os +import sys +import logging + +debug = os.environ.get('DATADOG_TRACE_DEBUG') +if debug and debug.lower() == 'true': + logging.basicConfig(level=logging.DEBUG) + +# Do not use `ddtrace.internal.logger.get_logger` here +# DEV: It isn't really necessary to use `DDLogger` here so we want to +# defer importing `ddtrace` until we actually need it. +# As well, no actual rate limiting would apply here since we only +# have a few logged lines +log = logging.getLogger(__name__) + +USAGE = """ +Execute the given Python program after configuring it to emit Datadog traces. +Append command line arguments to your program as usual. + +Usage: [ENV_VARS] ddtrace-run + +Available environment variables: + + DATADOG_ENV : override an application's environment (no default) + DATADOG_TRACE_ENABLED=true|false : override the value of tracer.enabled (default: true) + DATADOG_TRACE_DEBUG=true|false : enabled debug logging (default: false) + DATADOG_PATCH_MODULES=module:patch,module:patch... e.g. boto:true,redis:false : override the modules patched for this execution of the program (default: none) + DATADOG_TRACE_AGENT_HOSTNAME=localhost: override the address of the trace agent host that the default tracer will attempt to submit to (default: localhost) + DATADOG_TRACE_AGENT_PORT=8126: override the port that the default tracer will submit to (default: 8126) + DATADOG_SERVICE_NAME : override the service name to be used for this program (no default) + This value is passed through when setting up middleware for web framework integrations. + (e.g. pylons, flask, django) + For tracing without a web integration, prefer setting the service name in code. + DATADOG_PRIORITY_SAMPLING=true|false : (default: false): enables Priority Sampling. +""" # noqa: E501 + + +def _ddtrace_root(): + from ddtrace import __file__ + return os.path.dirname(__file__) + + +def _add_bootstrap_to_pythonpath(bootstrap_dir): + """ + Add our bootstrap directory to the head of $PYTHONPATH to ensure + it is loaded before program code + """ + python_path = os.environ.get('PYTHONPATH', '') + + if python_path: + new_path = '%s%s%s' % (bootstrap_dir, os.path.pathsep, os.environ['PYTHONPATH']) + os.environ['PYTHONPATH'] = new_path + else: + os.environ['PYTHONPATH'] = bootstrap_dir + + +def main(): + if len(sys.argv) < 2 or sys.argv[1] == '-h': + print(USAGE) + return + + log.debug('sys.argv: %s', sys.argv) + + root_dir = _ddtrace_root() + log.debug('ddtrace root: %s', root_dir) + + bootstrap_dir = os.path.join(root_dir, 'bootstrap') + log.debug('ddtrace bootstrap: %s', bootstrap_dir) + + _add_bootstrap_to_pythonpath(bootstrap_dir) + log.debug('PYTHONPATH: %s', os.environ['PYTHONPATH']) + log.debug('sys.path: %s', sys.path) + + executable = sys.argv[1] + + # Find the executable path + executable = spawn.find_executable(executable) + log.debug('program executable: %s', executable) + + os.execl(executable, executable, *sys.argv[2:]) diff --git a/ddtrace/compat.py b/ddtrace/compat.py new file mode 100644 index 0000000000..654f6b68aa --- /dev/null +++ b/ddtrace/compat.py @@ -0,0 +1,151 @@ +import platform +import re +import sys +import textwrap + +from ddtrace.vendor import six + +__all__ = [ + 'httplib', + 'iteritems', + 'PY2', + 'Queue', + 'stringify', + 'StringIO', + 'urlencode', + 'parse', + 'reraise', +] + +PYTHON_VERSION_INFO = sys.version_info +PY2 = sys.version_info[0] == 2 +PY3 = sys.version_info[0] == 3 + +# Infos about python passed to the trace agent through the header +PYTHON_VERSION = platform.python_version() +PYTHON_INTERPRETER = platform.python_implementation() + +try: + StringIO = six.moves.cStringIO +except ImportError: + StringIO = six.StringIO + +httplib = six.moves.http_client +urlencode = six.moves.urllib.parse.urlencode +parse = six.moves.urllib.parse +Queue = six.moves.queue.Queue +iteritems = six.iteritems +reraise = six.reraise +reload_module = six.moves.reload_module + +stringify = six.text_type +string_type = six.string_types[0] +msgpack_type = six.binary_type +# DEV: `six` doesn't have `float` in `integer_types` +numeric_types = six.integer_types + (float, ) + +# Pattern class generated by `re.compile` +if PYTHON_VERSION_INFO >= (3, 7): + pattern_type = re.Pattern +else: + pattern_type = re._pattern_type + + +def is_integer(obj): + """Helper to determine if the provided ``obj`` is an integer type or not""" + # DEV: We have to make sure it is an integer and not a boolean + # >>> type(True) + # + # >>> isinstance(True, int) + # True + return isinstance(obj, six.integer_types) and not isinstance(obj, bool) + + +try: + from time import time_ns +except ImportError: + from time import time as _time + + def time_ns(): + return int(_time() * 10e5) * 1000 + + +if PYTHON_VERSION_INFO[0:2] >= (3, 4): + from asyncio import iscoroutinefunction + + # Execute from a string to get around syntax errors from `yield from` + # DEV: The idea to do this was stolen from `six` + # https://github.com/benjaminp/six/blob/15e31431af97e5e64b80af0a3f598d382bcdd49a/six.py#L719-L737 + six.exec_(textwrap.dedent(""" + import functools + import asyncio + + + def make_async_decorator(tracer, coro, *params, **kw_params): + \"\"\" + Decorator factory that creates an asynchronous wrapper that yields + a coroutine result. This factory is required to handle Python 2 + compatibilities. + + :param object tracer: the tracer instance that is used + :param function f: the coroutine that must be executed + :param tuple params: arguments given to the Tracer.trace() + :param dict kw_params: keyword arguments given to the Tracer.trace() + \"\"\" + @functools.wraps(coro) + @asyncio.coroutine + def func_wrapper(*args, **kwargs): + with tracer.trace(*params, **kw_params): + result = yield from coro(*args, **kwargs) # noqa: E999 + return result + + return func_wrapper + """)) + +else: + # asyncio is missing so we can't have coroutines; these + # functions are used only to ensure code executions in case + # of an unexpected behavior + def iscoroutinefunction(fn): + return False + + def make_async_decorator(tracer, fn, *params, **kw_params): + return fn + + +# DEV: There is `six.u()` which does something similar, but doesn't have the guard around `hasattr(s, 'decode')` +def to_unicode(s): + """ Return a unicode string for the given bytes or string instance. """ + # No reason to decode if we already have the unicode compatible object we expect + # DEV: `six.text_type` will be a `str` for python 3 and `unicode` for python 2 + # DEV: Double decoding a `unicode` can cause a `UnicodeEncodeError` + # e.g. `'\xc3\xbf'.decode('utf-8').decode('utf-8')` + if isinstance(s, six.text_type): + return s + + # If the object has a `decode` method, then decode into `utf-8` + # e.g. Python 2 `str`, Python 2/3 `bytearray`, etc + if hasattr(s, 'decode'): + return s.decode('utf-8') + + # Always try to coerce the object into the `six.text_type` object we expect + # e.g. `to_unicode(1)`, `to_unicode(dict(key='value'))` + return six.text_type(s) + + +def get_connection_response(conn): + """Returns the response for a connection. + + If using Python 2 enable buffering. + + Python 2 does not enable buffering by default resulting in many recv + syscalls. + + See: + https://bugs.python.org/issue4879 + https://github.com/python/cpython/commit/3c43fcba8b67ea0cec4a443c755ce5f25990a6cf + """ + if PY2: + return conn.getresponse(buffering=True) + else: + return conn.getresponse() diff --git a/ddtrace/constants.py b/ddtrace/constants.py new file mode 100644 index 0000000000..803e98a53f --- /dev/null +++ b/ddtrace/constants.py @@ -0,0 +1,15 @@ +FILTERS_KEY = 'FILTERS' +SAMPLE_RATE_METRIC_KEY = '_sample_rate' +SAMPLING_PRIORITY_KEY = '_sampling_priority_v1' +ANALYTICS_SAMPLE_RATE_KEY = '_dd1.sr.eausr' +SAMPLING_AGENT_DECISION = '_dd.agent_psr' +SAMPLING_RULE_DECISION = '_dd.rule_psr' +SAMPLING_LIMIT_DECISION = '_dd.limit_psr' +ORIGIN_KEY = '_dd.origin' +HOSTNAME_KEY = '_dd.hostname' +ENV_KEY = 'env' + +NUMERIC_TAGS = (ANALYTICS_SAMPLE_RATE_KEY, ) + +MANUAL_DROP_KEY = 'manual.drop' +MANUAL_KEEP_KEY = 'manual.keep' diff --git a/ddtrace/context.py b/ddtrace/context.py new file mode 100644 index 0000000000..7feff0c79f --- /dev/null +++ b/ddtrace/context.py @@ -0,0 +1,216 @@ +import logging +import threading + +from .constants import HOSTNAME_KEY, SAMPLING_PRIORITY_KEY, ORIGIN_KEY +from .internal.logger import get_logger +from .internal import hostname +from .settings import config +from .utils.formats import asbool, get_env + +log = get_logger(__name__) + + +class Context(object): + """ + Context is used to keep track of a hierarchy of spans for the current + execution flow. During each logical execution, the same ``Context`` is + used to represent a single logical trace, even if the trace is built + asynchronously. + + A single code execution may use multiple ``Context`` if part of the execution + must not be related to the current tracing. As example, a delayed job may + compose a standalone trace instead of being related to the same trace that + generates the job itself. On the other hand, if it's part of the same + ``Context``, it will be related to the original trace. + + This data structure is thread-safe. + """ + _partial_flush_enabled = asbool(get_env('tracer', 'partial_flush_enabled', 'false')) + _partial_flush_min_spans = int(get_env('tracer', 'partial_flush_min_spans', 500)) + + def __init__(self, trace_id=None, span_id=None, sampling_priority=None, _dd_origin=None): + """ + Initialize a new thread-safe ``Context``. + + :param int trace_id: trace_id of parent span + :param int span_id: span_id of parent span + """ + self._trace = [] + self._finished_spans = 0 + self._current_span = None + self._lock = threading.Lock() + + self._parent_trace_id = trace_id + self._parent_span_id = span_id + self._sampling_priority = sampling_priority + self._dd_origin = _dd_origin + + @property + def trace_id(self): + """Return current context trace_id.""" + with self._lock: + return self._parent_trace_id + + @property + def span_id(self): + """Return current context span_id.""" + with self._lock: + return self._parent_span_id + + @property + def sampling_priority(self): + """Return current context sampling priority.""" + with self._lock: + return self._sampling_priority + + @sampling_priority.setter + def sampling_priority(self, value): + """Set sampling priority.""" + with self._lock: + self._sampling_priority = value + + def clone(self): + """ + Partially clones the current context. + It copies everything EXCEPT the registered and finished spans. + """ + with self._lock: + new_ctx = Context( + trace_id=self._parent_trace_id, + span_id=self._parent_span_id, + sampling_priority=self._sampling_priority, + ) + new_ctx._current_span = self._current_span + return new_ctx + + def get_current_root_span(self): + """ + Return the root span of the context or None if it does not exist. + """ + return self._trace[0] if len(self._trace) > 0 else None + + def get_current_span(self): + """ + Return the last active span that corresponds to the last inserted + item in the trace list. This cannot be considered as the current active + span in asynchronous environments, because some spans can be closed + earlier while child spans still need to finish their traced execution. + """ + with self._lock: + return self._current_span + + def _set_current_span(self, span): + """ + Set current span internally. + + Non-safe if not used with a lock. For internal Context usage only. + """ + self._current_span = span + if span: + self._parent_trace_id = span.trace_id + self._parent_span_id = span.span_id + else: + self._parent_span_id = None + + def add_span(self, span): + """ + Add a span to the context trace list, keeping it as the last active span. + """ + with self._lock: + self._set_current_span(span) + + self._trace.append(span) + span._context = self + + def close_span(self, span): + """ + Mark a span as a finished, increasing the internal counter to prevent + cycles inside _trace list. + """ + with self._lock: + self._finished_spans += 1 + self._set_current_span(span._parent) + + # notify if the trace is not closed properly; this check is executed only + # if the debug logging is enabled and when the root span is closed + # for an unfinished trace. This logging is meant to be used for debugging + # reasons, and it doesn't mean that the trace is wrongly generated. + # In asynchronous environments, it's legit to close the root span before + # some children. On the other hand, asynchronous web frameworks still expect + # to close the root span after all the children. + if span.tracer and span.tracer.log.isEnabledFor(logging.DEBUG) and span._parent is None: + unfinished_spans = [x for x in self._trace if not x.finished] + if unfinished_spans: + log.debug('Root span "%s" closed, but the trace has %d unfinished spans:', + span.name, len(unfinished_spans)) + for wrong_span in unfinished_spans: + log.debug('\n%s', wrong_span.pprint()) + + def _is_sampled(self): + return any(span.sampled for span in self._trace) + + def get(self): + """ + Returns a tuple containing the trace list generated in the current context and + if the context is sampled or not. It returns (None, None) if the ``Context`` is + not finished. If a trace is returned, the ``Context`` will be reset so that it + can be re-used immediately. + + This operation is thread-safe. + """ + with self._lock: + # All spans are finished? + if self._finished_spans == len(self._trace): + # get the trace + trace = self._trace + sampled = self._is_sampled() + sampling_priority = self._sampling_priority + # attach the sampling priority to the context root span + if sampled and sampling_priority is not None and trace: + trace[0].set_metric(SAMPLING_PRIORITY_KEY, sampling_priority) + origin = self._dd_origin + # attach the origin to the root span tag + if sampled and origin is not None and trace: + trace[0].set_tag(ORIGIN_KEY, origin) + + # Set hostname tag if they requested it + if config.report_hostname: + # DEV: `get_hostname()` value is cached + trace[0].set_tag(HOSTNAME_KEY, hostname.get_hostname()) + + # clean the current state + self._trace = [] + self._finished_spans = 0 + self._parent_trace_id = None + self._parent_span_id = None + self._sampling_priority = None + return trace, sampled + + elif self._partial_flush_enabled: + finished_spans = [t for t in self._trace if t.finished] + if len(finished_spans) >= self._partial_flush_min_spans: + # partial flush when enabled and we have more than the minimal required spans + trace = self._trace + sampled = self._is_sampled() + sampling_priority = self._sampling_priority + # attach the sampling priority to the context root span + if sampled and sampling_priority is not None and trace: + trace[0].set_metric(SAMPLING_PRIORITY_KEY, sampling_priority) + origin = self._dd_origin + # attach the origin to the root span tag + if sampled and origin is not None and trace: + trace[0].set_tag(ORIGIN_KEY, origin) + + # Set hostname tag if they requested it + if config.report_hostname: + # DEV: `get_hostname()` value is cached + trace[0].set_tag(HOSTNAME_KEY, hostname.get_hostname()) + + self._finished_spans = 0 + + # Any open spans will remain as `self._trace` + # Any finished spans will get returned to be flushed + self._trace = [t for t in self._trace if not t.finished] + + return finished_spans, sampled + return None, None diff --git a/ddtrace/contrib/__init__.py b/ddtrace/contrib/__init__.py new file mode 100644 index 0000000000..6a35d31c95 --- /dev/null +++ b/ddtrace/contrib/__init__.py @@ -0,0 +1 @@ +from ..utils.importlib import func_name, module_name, require_modules # noqa diff --git a/ddtrace/contrib/aiobotocore/__init__.py b/ddtrace/contrib/aiobotocore/__init__.py new file mode 100644 index 0000000000..0f5a5a1995 --- /dev/null +++ b/ddtrace/contrib/aiobotocore/__init__.py @@ -0,0 +1,30 @@ +""" +The aiobotocore integration will trace all AWS calls made with the ``aiobotocore`` +library. This integration isn't enabled when applying the default patching. +To enable it, you must run ``patch_all(aiobotocore=True)`` + +:: + + import aiobotocore.session + from ddtrace import patch + + # If not patched yet, you can patch botocore specifically + patch(aiobotocore=True) + + # This will report spans with the default instrumentation + aiobotocore.session.get_session() + lambda_client = session.create_client('lambda', region_name='us-east-1') + + # This query generates a trace + lambda_client.list_functions() +""" +from ...utils.importlib import require_modules + + +required_modules = ['aiobotocore.client'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .patch import patch + + __all__ = ['patch'] diff --git a/ddtrace/contrib/aiobotocore/patch.py b/ddtrace/contrib/aiobotocore/patch.py new file mode 100644 index 0000000000..ca903f170d --- /dev/null +++ b/ddtrace/contrib/aiobotocore/patch.py @@ -0,0 +1,129 @@ +import asyncio +from ddtrace.vendor import wrapt +from ddtrace import config +import aiobotocore.client + +from aiobotocore.endpoint import ClientResponseContentProxy + +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from ...pin import Pin +from ...ext import SpanTypes, http, aws +from ...compat import PYTHON_VERSION_INFO +from ...utils.formats import deep_getattr +from ...utils.wrappers import unwrap + + +ARGS_NAME = ('action', 'params', 'path', 'verb') +TRACED_ARGS = ['params', 'path', 'verb'] + + +def patch(): + if getattr(aiobotocore.client, '_datadog_patch', False): + return + setattr(aiobotocore.client, '_datadog_patch', True) + + wrapt.wrap_function_wrapper('aiobotocore.client', 'AioBaseClient._make_api_call', _wrapped_api_call) + Pin(service='aws', app='aws').onto(aiobotocore.client.AioBaseClient) + + +def unpatch(): + if getattr(aiobotocore.client, '_datadog_patch', False): + setattr(aiobotocore.client, '_datadog_patch', False) + unwrap(aiobotocore.client.AioBaseClient, '_make_api_call') + + +class WrappedClientResponseContentProxy(wrapt.ObjectProxy): + def __init__(self, body, pin, parent_span): + super(WrappedClientResponseContentProxy, self).__init__(body) + self._self_pin = pin + self._self_parent_span = parent_span + + @asyncio.coroutine + def read(self, *args, **kwargs): + # async read that must be child of the parent span operation + operation_name = '{}.read'.format(self._self_parent_span.name) + + with self._self_pin.tracer.start_span(operation_name, child_of=self._self_parent_span) as span: + # inherit parent attributes + span.resource = self._self_parent_span.resource + span.span_type = self._self_parent_span.span_type + span.meta = dict(self._self_parent_span.meta) + span.metrics = dict(self._self_parent_span.metrics) + + result = yield from self.__wrapped__.read(*args, **kwargs) + span.set_tag('Length', len(result)) + + return result + + # wrapt doesn't proxy `async with` context managers + if PYTHON_VERSION_INFO >= (3, 5, 0): + @asyncio.coroutine + def __aenter__(self): + # call the wrapped method but return the object proxy + yield from self.__wrapped__.__aenter__() + return self + + @asyncio.coroutine + def __aexit__(self, *args, **kwargs): + response = yield from self.__wrapped__.__aexit__(*args, **kwargs) + return response + + +@asyncio.coroutine +def _wrapped_api_call(original_func, instance, args, kwargs): + pin = Pin.get_from(instance) + if not pin or not pin.enabled(): + result = yield from original_func(*args, **kwargs) + return result + + endpoint_name = deep_getattr(instance, '_endpoint._endpoint_prefix') + + with pin.tracer.trace('{}.command'.format(endpoint_name), + service='{}.{}'.format(pin.service, endpoint_name), + span_type=SpanTypes.HTTP) as span: + + if len(args) > 0: + operation = args[0] + span.resource = '{}.{}'.format(endpoint_name, operation.lower()) + else: + operation = None + span.resource = endpoint_name + + aws.add_span_arg_tags(span, endpoint_name, args, ARGS_NAME, TRACED_ARGS) + + region_name = deep_getattr(instance, 'meta.region_name') + + meta = { + 'aws.agent': 'aiobotocore', + 'aws.operation': operation, + 'aws.region': region_name, + } + span.set_tags(meta) + + result = yield from original_func(*args, **kwargs) + + body = result.get('Body') + if isinstance(body, ClientResponseContentProxy): + result['Body'] = WrappedClientResponseContentProxy(body, pin, span) + + response_meta = result['ResponseMetadata'] + response_headers = response_meta['HTTPHeaders'] + + span.set_tag(http.STATUS_CODE, response_meta['HTTPStatusCode']) + span.set_tag('retry_attempts', response_meta['RetryAttempts']) + + request_id = response_meta.get('RequestId') + if request_id: + span.set_tag('aws.requestid', request_id) + + request_id2 = response_headers.get('x-amz-id-2') + if request_id2: + span.set_tag('aws.requestid2', request_id2) + + # set analytics sample rate + span.set_tag( + ANALYTICS_SAMPLE_RATE_KEY, + config.aiobotocore.get_analytics_sample_rate() + ) + + return result diff --git a/ddtrace/contrib/aiohttp/__init__.py b/ddtrace/contrib/aiohttp/__init__.py new file mode 100644 index 0000000000..881634c568 --- /dev/null +++ b/ddtrace/contrib/aiohttp/__init__.py @@ -0,0 +1,61 @@ +""" +The ``aiohttp`` integration traces all requests defined in the application handlers. +Auto instrumentation is available using the ``trace_app`` function:: + + from aiohttp import web + from ddtrace import tracer, patch + from ddtrace.contrib.aiohttp import trace_app + + # patch third-party modules like aiohttp_jinja2 + patch(aiohttp=True) + + # create your application + app = web.Application() + app.router.add_get('/', home_handler) + + # trace your application handlers + trace_app(app, tracer, service='async-api') + web.run_app(app, port=8000) + +Integration settings are attached to your application under the ``datadog_trace`` +namespace. You can read or update them as follows:: + + # disables distributed tracing for all received requests + app['datadog_trace']['distributed_tracing_enabled'] = False + +Available settings are: + +* ``tracer`` (default: ``ddtrace.tracer``): set the default tracer instance that is used to + trace `aiohttp` internals. By default the `ddtrace` tracer is used. +* ``service`` (default: ``aiohttp-web``): set the service name used by the tracer. Usually + this configuration must be updated with a meaningful name. +* ``distributed_tracing_enabled`` (default: ``True``): enable distributed tracing during + the middleware execution, so that a new span is created with the given ``trace_id`` and + ``parent_id`` injected via request headers. +* ``analytics_enabled`` (default: ``None``): enables APM events in Trace Search & Analytics. + +Third-party modules that are currently supported by the ``patch()`` method are: + +* ``aiohttp_jinja2`` + +When a request span is created, a new ``Context`` for this logical execution is attached +to the ``request`` object, so that it can be used in the application code:: + + async def home_handler(request): + ctx = request['datadog_context'] + # do something with the tracing Context +""" +from ...utils.importlib import require_modules + +required_modules = ['aiohttp'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .patch import patch, unpatch + from .middlewares import trace_app + + __all__ = [ + 'patch', + 'unpatch', + 'trace_app', + ] diff --git a/ddtrace/contrib/aiohttp/middlewares.py b/ddtrace/contrib/aiohttp/middlewares.py new file mode 100644 index 0000000000..52269b9193 --- /dev/null +++ b/ddtrace/contrib/aiohttp/middlewares.py @@ -0,0 +1,146 @@ +import asyncio + +from ..asyncio import context_provider +from ...compat import stringify +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from ...ext import SpanTypes, http +from ...propagation.http import HTTPPropagator +from ...settings import config + + +CONFIG_KEY = 'datadog_trace' +REQUEST_CONTEXT_KEY = 'datadog_context' +REQUEST_CONFIG_KEY = '__datadog_trace_config' +REQUEST_SPAN_KEY = '__datadog_request_span' + + +@asyncio.coroutine +def trace_middleware(app, handler): + """ + ``aiohttp`` middleware that traces the handler execution. + Because handlers are run in different tasks for each request, we attach the Context + instance both to the Task and to the Request objects. In this way: + + * the Task is used by the internal automatic instrumentation + * the ``Context`` attached to the request can be freely used in the application code + """ + @asyncio.coroutine + def attach_context(request): + # application configs + tracer = app[CONFIG_KEY]['tracer'] + service = app[CONFIG_KEY]['service'] + distributed_tracing = app[CONFIG_KEY]['distributed_tracing_enabled'] + + # Create a new context based on the propagated information. + if distributed_tracing: + propagator = HTTPPropagator() + context = propagator.extract(request.headers) + # Only need to active the new context if something was propagated + if context.trace_id: + tracer.context_provider.activate(context) + + # trace the handler + request_span = tracer.trace( + 'aiohttp.request', + service=service, + span_type=SpanTypes.WEB, + ) + + # Configure trace search sample rate + # DEV: aiohttp is special case maintains separate configuration from config api + analytics_enabled = app[CONFIG_KEY]['analytics_enabled'] + if (config.analytics_enabled and analytics_enabled is not False) or analytics_enabled is True: + request_span.set_tag( + ANALYTICS_SAMPLE_RATE_KEY, + app[CONFIG_KEY].get('analytics_sample_rate', True) + ) + + # attach the context and the root span to the request; the Context + # may be freely used by the application code + request[REQUEST_CONTEXT_KEY] = request_span.context + request[REQUEST_SPAN_KEY] = request_span + request[REQUEST_CONFIG_KEY] = app[CONFIG_KEY] + try: + response = yield from handler(request) + return response + except Exception: + request_span.set_traceback() + raise + return attach_context + + +@asyncio.coroutine +def on_prepare(request, response): + """ + The on_prepare signal is used to close the request span that is created during + the trace middleware execution. + """ + # safe-guard: discard if we don't have a request span + request_span = request.get(REQUEST_SPAN_KEY, None) + if not request_span: + return + + # default resource name + resource = stringify(response.status) + + if request.match_info.route.resource: + # collect the resource name based on http resource type + res_info = request.match_info.route.resource.get_info() + + if res_info.get('path'): + resource = res_info.get('path') + elif res_info.get('formatter'): + resource = res_info.get('formatter') + elif res_info.get('prefix'): + resource = res_info.get('prefix') + + # prefix the resource name by the http method + resource = '{} {}'.format(request.method, resource) + + if 500 <= response.status < 600: + request_span.error = 1 + + request_span.resource = resource + request_span.set_tag('http.method', request.method) + request_span.set_tag('http.status_code', response.status) + request_span.set_tag(http.URL, request.url.with_query(None)) + # DEV: aiohttp is special case maintains separate configuration from config api + trace_query_string = request[REQUEST_CONFIG_KEY].get('trace_query_string') + if trace_query_string is None: + trace_query_string = config._http.trace_query_string + if trace_query_string: + request_span.set_tag(http.QUERY_STRING, request.query_string) + request_span.finish() + + +def trace_app(app, tracer, service='aiohttp-web'): + """ + Tracing function that patches the ``aiohttp`` application so that it will be + traced using the given ``tracer``. + + :param app: aiohttp application to trace + :param tracer: tracer instance to use + :param service: service name of tracer + """ + + # safe-guard: don't trace an application twice + if getattr(app, '__datadog_trace', False): + return + setattr(app, '__datadog_trace', True) + + # configure datadog settings + app[CONFIG_KEY] = { + 'tracer': tracer, + 'service': service, + 'distributed_tracing_enabled': True, + 'analytics_enabled': None, + 'analytics_sample_rate': 1.0, + } + + # the tracer must work with asynchronous Context propagation + tracer.configure(context_provider=context_provider) + + # add the async tracer middleware as a first middleware + # and be sure that the on_prepare signal is the last one + app.middlewares.insert(0, trace_middleware) + app.on_response_prepare.append(on_prepare) diff --git a/ddtrace/contrib/aiohttp/patch.py b/ddtrace/contrib/aiohttp/patch.py new file mode 100644 index 0000000000..81b6deae11 --- /dev/null +++ b/ddtrace/contrib/aiohttp/patch.py @@ -0,0 +1,39 @@ +from ddtrace.vendor import wrapt + +from ...pin import Pin +from ...utils.wrappers import unwrap + + +try: + # instrument external packages only if they're available + import aiohttp_jinja2 + from .template import _trace_render_template + + template_module = True +except ImportError: + template_module = False + + +def patch(): + """ + Patch aiohttp third party modules: + * aiohttp_jinja2 + """ + if template_module: + if getattr(aiohttp_jinja2, '__datadog_patch', False): + return + setattr(aiohttp_jinja2, '__datadog_patch', True) + + _w = wrapt.wrap_function_wrapper + _w('aiohttp_jinja2', 'render_template', _trace_render_template) + Pin(app='aiohttp', service=None).onto(aiohttp_jinja2) + + +def unpatch(): + """ + Remove tracing from patched modules. + """ + if template_module: + if getattr(aiohttp_jinja2, '__datadog_patch', False): + setattr(aiohttp_jinja2, '__datadog_patch', False) + unwrap(aiohttp_jinja2, 'render_template') diff --git a/ddtrace/contrib/aiohttp/template.py b/ddtrace/contrib/aiohttp/template.py new file mode 100644 index 0000000000..2b0c91479b --- /dev/null +++ b/ddtrace/contrib/aiohttp/template.py @@ -0,0 +1,29 @@ +import aiohttp_jinja2 + +from ddtrace import Pin + +from ...ext import SpanTypes + + +def _trace_render_template(func, module, args, kwargs): + """ + Trace the template rendering + """ + # get the module pin + pin = Pin.get_from(aiohttp_jinja2) + if not pin or not pin.enabled(): + return func(*args, **kwargs) + + # original signature: + # render_template(template_name, request, context, *, app_key=APP_KEY, encoding='utf-8') + template_name = args[0] + request = args[1] + env = aiohttp_jinja2.get_env(request.app) + + # the prefix is available only on PackageLoader + template_prefix = getattr(env.loader, 'package_path', '') + template_meta = '{}/{}'.format(template_prefix, template_name) + + with pin.tracer.trace('aiohttp.template', span_type=SpanTypes.TEMPLATE) as span: + span.set_meta('aiohttp.template', template_meta) + return func(*args, **kwargs) diff --git a/ddtrace/contrib/aiopg/__init__.py b/ddtrace/contrib/aiopg/__init__.py new file mode 100644 index 0000000000..df1580e107 --- /dev/null +++ b/ddtrace/contrib/aiopg/__init__.py @@ -0,0 +1,27 @@ +""" +Instrument aiopg to report a span for each executed Postgres queries:: + + from ddtrace import Pin, patch + import aiopg + + # If not patched yet, you can patch aiopg specifically + patch(aiopg=True) + + # This will report a span with the default settings + async with aiopg.connect(DSN) as db: + with (await db.cursor()) as cursor: + await cursor.execute("SELECT * FROM users WHERE id = 1") + + # Use a pin to specify metadata related to this connection + Pin.override(db, service='postgres-users') +""" +from ...utils.importlib import require_modules + + +required_modules = ['aiopg'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .patch import patch + + __all__ = ['patch'] diff --git a/ddtrace/contrib/aiopg/connection.py b/ddtrace/contrib/aiopg/connection.py new file mode 100644 index 0000000000..f5dc3afb47 --- /dev/null +++ b/ddtrace/contrib/aiopg/connection.py @@ -0,0 +1,97 @@ +import asyncio +from ddtrace.vendor import wrapt + +from aiopg.utils import _ContextManager + +from .. import dbapi +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from ...ext import SpanTypes, sql +from ...pin import Pin +from ...settings import config + + +class AIOTracedCursor(wrapt.ObjectProxy): + """ TracedCursor wraps a psql cursor and traces its queries. """ + + def __init__(self, cursor, pin): + super(AIOTracedCursor, self).__init__(cursor) + pin.onto(self) + name = pin.app or 'sql' + self._datadog_name = '%s.query' % name + + @asyncio.coroutine + def _trace_method(self, method, resource, extra_tags, *args, **kwargs): + pin = Pin.get_from(self) + if not pin or not pin.enabled(): + result = yield from method(*args, **kwargs) + return result + service = pin.service + + with pin.tracer.trace(self._datadog_name, service=service, + resource=resource, span_type=SpanTypes.SQL) as s: + s.set_tag(sql.QUERY, resource) + s.set_tags(pin.tags) + s.set_tags(extra_tags) + + # set analytics sample rate + s.set_tag( + ANALYTICS_SAMPLE_RATE_KEY, + config.aiopg.get_analytics_sample_rate() + ) + + try: + result = yield from method(*args, **kwargs) + return result + finally: + s.set_metric('db.rowcount', self.rowcount) + + @asyncio.coroutine + def executemany(self, query, *args, **kwargs): + # FIXME[matt] properly handle kwargs here. arg names can be different + # with different libs. + result = yield from self._trace_method( + self.__wrapped__.executemany, query, {'sql.executemany': 'true'}, + query, *args, **kwargs) + return result + + @asyncio.coroutine + def execute(self, query, *args, **kwargs): + result = yield from self._trace_method( + self.__wrapped__.execute, query, {}, query, *args, **kwargs) + return result + + @asyncio.coroutine + def callproc(self, proc, args): + result = yield from self._trace_method( + self.__wrapped__.callproc, proc, {}, proc, args) + return result + + def __aiter__(self): + return self.__wrapped__.__aiter__() + + +class AIOTracedConnection(wrapt.ObjectProxy): + """ TracedConnection wraps a Connection with tracing code. """ + + def __init__(self, conn, pin=None, cursor_cls=AIOTracedCursor): + super(AIOTracedConnection, self).__init__(conn) + name = dbapi._get_vendor(conn) + db_pin = pin or Pin(service=name, app=name) + db_pin.onto(self) + # wrapt requires prefix of `_self` for attributes that are only in the + # proxy (since some of our source objects will use `__slots__`) + self._self_cursor_cls = cursor_cls + + def cursor(self, *args, **kwargs): + # unfortunately we also need to patch this method as otherwise "self" + # ends up being the aiopg connection object + coro = self._cursor(*args, **kwargs) + return _ContextManager(coro) + + @asyncio.coroutine + def _cursor(self, *args, **kwargs): + cursor = yield from self.__wrapped__._cursor(*args, **kwargs) + pin = Pin.get_from(self) + if not pin: + return cursor + return self._self_cursor_cls(cursor, pin) diff --git a/ddtrace/contrib/aiopg/patch.py b/ddtrace/contrib/aiopg/patch.py new file mode 100644 index 0000000000..62160cf91b --- /dev/null +++ b/ddtrace/contrib/aiopg/patch.py @@ -0,0 +1,57 @@ +# 3p +import asyncio + +import aiopg.connection +import psycopg2.extensions +from ddtrace.vendor import wrapt + +from .connection import AIOTracedConnection +from ..psycopg.patch import _patch_extensions, \ + _unpatch_extensions, patch_conn as psycopg_patch_conn +from ...utils.wrappers import unwrap as _u + + +def patch(): + """ Patch monkey patches psycopg's connection function + so that the connection's functions are traced. + """ + if getattr(aiopg, '_datadog_patch', False): + return + setattr(aiopg, '_datadog_patch', True) + + wrapt.wrap_function_wrapper(aiopg.connection, '_connect', patched_connect) + _patch_extensions(_aiopg_extensions) # do this early just in case + + +def unpatch(): + if getattr(aiopg, '_datadog_patch', False): + setattr(aiopg, '_datadog_patch', False) + _u(aiopg.connection, '_connect') + _unpatch_extensions(_aiopg_extensions) + + +@asyncio.coroutine +def patched_connect(connect_func, _, args, kwargs): + conn = yield from connect_func(*args, **kwargs) + return psycopg_patch_conn(conn, traced_conn_cls=AIOTracedConnection) + + +def _extensions_register_type(func, _, args, kwargs): + def _unroll_args(obj, scope=None): + return obj, scope + obj, scope = _unroll_args(*args, **kwargs) + + # register_type performs a c-level check of the object + # type so we must be sure to pass in the actual db connection + if scope and isinstance(scope, wrapt.ObjectProxy): + scope = scope.__wrapped__._conn + + return func(obj, scope) if scope else func(obj) + + +# extension hooks +_aiopg_extensions = [ + (psycopg2.extensions.register_type, + psycopg2.extensions, 'register_type', + _extensions_register_type), +] diff --git a/ddtrace/contrib/algoliasearch/__init__.py b/ddtrace/contrib/algoliasearch/__init__.py new file mode 100644 index 0000000000..ff5cc604f7 --- /dev/null +++ b/ddtrace/contrib/algoliasearch/__init__.py @@ -0,0 +1,32 @@ +""" +The Algoliasearch__ integration will add tracing to your Algolia searches. + +:: + + from ddtrace import patch_all + patch_all() + + from algoliasearch import algoliasearch + client = alogliasearch.Client(, ) + index = client.init_index() + index.search("your query", args={"attributesToRetrieve": "attribute1,attribute1"}) + +Configuration +~~~~~~~~~~~~~ + +.. py:data:: ddtrace.config.algoliasearch['collect_query_text'] + + Whether to pass the text of your query onto Datadog. Since this may contain sensitive data it's off by default + + Default: ``False`` + +.. __: https://www.algolia.com +""" + +from ...utils.importlib import require_modules + +with require_modules(['algoliasearch', 'algoliasearch.version']) as missing_modules: + if not missing_modules: + from .patch import patch, unpatch + + __all__ = ['patch', 'unpatch'] diff --git a/ddtrace/contrib/algoliasearch/patch.py b/ddtrace/contrib/algoliasearch/patch.py new file mode 100644 index 0000000000..859b6eb0f7 --- /dev/null +++ b/ddtrace/contrib/algoliasearch/patch.py @@ -0,0 +1,143 @@ +from ddtrace.pin import Pin +from ddtrace.settings import config +from ddtrace.utils.wrappers import unwrap as _u +from ddtrace.vendor.wrapt import wrap_function_wrapper as _w + +DD_PATCH_ATTR = '_datadog_patch' + +SERVICE_NAME = 'algoliasearch' +APP_NAME = 'algoliasearch' + +try: + import algoliasearch + from algoliasearch.version import VERSION + algoliasearch_version = tuple([int(i) for i in VERSION.split('.')]) + + # Default configuration + config._add('algoliasearch', dict( + service_name=SERVICE_NAME, + collect_query_text=False + )) +except ImportError: + algoliasearch_version = (0, 0) + + +def patch(): + if algoliasearch_version == (0, 0): + return + + if getattr(algoliasearch, DD_PATCH_ATTR, False): + return + + setattr(algoliasearch, '_datadog_patch', True) + + pin = Pin( + service=config.algoliasearch.service_name, app=APP_NAME + ) + + if algoliasearch_version < (2, 0) and algoliasearch_version >= (1, 0): + _w(algoliasearch.index, 'Index.search', _patched_search) + pin.onto(algoliasearch.index.Index) + elif algoliasearch_version >= (2, 0) and algoliasearch_version < (3, 0): + from algoliasearch import search_index + _w(algoliasearch, 'search_index.SearchIndex.search', _patched_search) + pin.onto(search_index.SearchIndex) + else: + return + + +def unpatch(): + if algoliasearch_version == (0, 0): + return + + if getattr(algoliasearch, DD_PATCH_ATTR, False): + setattr(algoliasearch, DD_PATCH_ATTR, False) + + if algoliasearch_version < (2, 0) and algoliasearch_version >= (1, 0): + _u(algoliasearch.index.Index, 'search') + elif algoliasearch_version >= (2, 0) and algoliasearch_version < (3, 0): + from algoliasearch import search_index + _u(search_index.SearchIndex, 'search') + else: + return + + +# DEV: this maps serves the dual purpose of enumerating the algoliasearch.search() query_args that +# will be sent along as tags, as well as converting arguments names into tag names compliant with +# tag naming recommendations set out here: https://docs.datadoghq.com/tagging/ +QUERY_ARGS_DD_TAG_MAP = { + 'page': 'page', + 'hitsPerPage': 'hits_per_page', + 'attributesToRetrieve': 'attributes_to_retrieve', + 'attributesToHighlight': 'attributes_to_highlight', + 'attributesToSnippet': 'attributes_to_snippet', + 'minWordSizefor1Typo': 'min_word_size_for_1_typo', + 'minWordSizefor2Typos': 'min_word_size_for_2_typos', + 'getRankingInfo': 'get_ranking_info', + 'aroundLatLng': 'around_lat_lng', + 'numericFilters': 'numeric_filters', + 'tagFilters': 'tag_filters', + 'queryType': 'query_type', + 'optionalWords': 'optional_words', + 'distinct': 'distinct' +} + + +def _patched_search(func, instance, wrapt_args, wrapt_kwargs): + """ + wrapt_args is called the way it is to distinguish it from the 'args' + argument to the algoliasearch.index.Index.search() method. + """ + + if algoliasearch_version < (2, 0) and algoliasearch_version >= (1, 0): + function_query_arg_name = 'args' + elif algoliasearch_version >= (2, 0) and algoliasearch_version < (3, 0): + function_query_arg_name = 'request_options' + else: + return func(*wrapt_args, **wrapt_kwargs) + + pin = Pin.get_from(instance) + if not pin or not pin.enabled(): + return func(*wrapt_args, **wrapt_kwargs) + + with pin.tracer.trace('algoliasearch.search', service=pin.service) as span: + if not span.sampled: + return func(*wrapt_args, **wrapt_kwargs) + + if config.algoliasearch.collect_query_text: + span.set_tag('query.text', wrapt_kwargs.get('query', wrapt_args[0])) + + query_args = wrapt_kwargs.get(function_query_arg_name, wrapt_args[1] if len(wrapt_args) > 1 else None) + + if query_args and isinstance(query_args, dict): + for query_arg, tag_name in QUERY_ARGS_DD_TAG_MAP.items(): + value = query_args.get(query_arg) + if value is not None: + span.set_tag('query.args.{}'.format(tag_name), value) + + # Result would look like this + # { + # 'hits': [ + # { + # .... your search results ... + # } + # ], + # 'processingTimeMS': 1, + # 'nbHits': 1, + # 'hitsPerPage': 20, + # 'exhaustiveNbHits': true, + # 'params': 'query=xxx', + # 'nbPages': 1, + # 'query': 'xxx', + # 'page': 0 + # } + result = func(*wrapt_args, **wrapt_kwargs) + + if isinstance(result, dict): + if result.get('processingTimeMS', None) is not None: + span.set_metric('processing_time_ms', int(result['processingTimeMS'])) + + if result.get('nbHits', None) is not None: + span.set_metric('number_of_hits', int(result['nbHits'])) + + return result diff --git a/ddtrace/contrib/asyncio/__init__.py b/ddtrace/contrib/asyncio/__init__.py new file mode 100644 index 0000000000..57f7e99e71 --- /dev/null +++ b/ddtrace/contrib/asyncio/__init__.py @@ -0,0 +1,72 @@ +""" +This integration provides the ``AsyncioContextProvider`` that follows the execution +flow of a ``Task``, making possible to trace asynchronous code built on top +of ``asyncio``. To trace asynchronous execution, you must:: + + import asyncio + from ddtrace import tracer + from ddtrace.contrib.asyncio import context_provider + + # enable asyncio support + tracer.configure(context_provider=context_provider) + + async def some_work(): + with tracer.trace('asyncio.some_work'): + # do something + + # launch your coroutines as usual + loop = asyncio.get_event_loop() + loop.run_until_complete(some_work()) + loop.close() + +If ``contextvars`` is available, we use the +:class:`ddtrace.provider.DefaultContextProvider`, otherwise we use the legacy +:class:`ddtrace.contrib.asyncio.provider.AsyncioContextProvider`. + +In addition, helpers are provided to simplify how the tracing ``Context`` is +handled between scheduled coroutines and ``Future`` invoked in separated +threads: + + * ``set_call_context(task, ctx)``: attach the context to the given ``Task`` + so that it will be available from the ``tracer.get_call_context()`` + * ``ensure_future(coro_or_future, *, loop=None)``: wrapper for the + ``asyncio.ensure_future`` that attaches the current context to a new + ``Task`` instance + * ``run_in_executor(loop, executor, func, *args)``: wrapper for the + ``loop.run_in_executor`` that attaches the current context to the + new thread so that the trace can be resumed regardless when + it's executed + * ``create_task(coro)``: creates a new asyncio ``Task`` that inherits + the current active ``Context`` so that generated traces in the new task + are attached to the main trace + +A ``patch(asyncio=True)`` is available if you want to automatically use above +wrappers without changing your code. In that case, the patch method **must be +called before** importing stdlib functions. +""" +from ...utils.importlib import require_modules + + +required_modules = ['asyncio'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .provider import AsyncioContextProvider + from ...internal.context_manager import CONTEXTVARS_IS_AVAILABLE + from ...provider import DefaultContextProvider + + if CONTEXTVARS_IS_AVAILABLE: + context_provider = DefaultContextProvider() + else: + context_provider = AsyncioContextProvider() + + from .helpers import set_call_context, ensure_future, run_in_executor + from .patch import patch + + __all__ = [ + 'context_provider', + 'set_call_context', + 'ensure_future', + 'run_in_executor', + 'patch' + ] diff --git a/ddtrace/contrib/asyncio/compat.py b/ddtrace/contrib/asyncio/compat.py new file mode 100644 index 0000000000..b204218e08 --- /dev/null +++ b/ddtrace/contrib/asyncio/compat.py @@ -0,0 +1,9 @@ +import sys + +# asyncio.Task.current_task method is deprecated and will be removed in Python +# 3.9. Instead use asyncio.current_task +if sys.version_info >= (3, 7, 0): + from asyncio import current_task as asyncio_current_task +else: + import asyncio + asyncio_current_task = asyncio.Task.current_task diff --git a/ddtrace/contrib/asyncio/helpers.py b/ddtrace/contrib/asyncio/helpers.py new file mode 100644 index 0000000000..fadd9a58e5 --- /dev/null +++ b/ddtrace/contrib/asyncio/helpers.py @@ -0,0 +1,83 @@ +""" +This module includes a list of convenience methods that +can be used to simplify some operations while handling +Context and Spans in instrumented ``asyncio`` code. +""" +import asyncio +import ddtrace + +from .provider import CONTEXT_ATTR +from .wrappers import wrapped_create_task +from ...context import Context + + +def set_call_context(task, ctx): + """ + Updates the ``Context`` for the given Task. Useful when you need to + pass the context among different tasks. + + This method is available for backward-compatibility. Use the + ``AsyncioContextProvider`` API to set the current active ``Context``. + """ + setattr(task, CONTEXT_ATTR, ctx) + + +def ensure_future(coro_or_future, *, loop=None, tracer=None): + """Wrapper that sets a context to the newly created Task. + + If the current task already has a Context, it will be attached to the new Task so the Trace list will be preserved. + """ + tracer = tracer or ddtrace.tracer + current_ctx = tracer.get_call_context() + task = asyncio.ensure_future(coro_or_future, loop=loop) + set_call_context(task, current_ctx) + return task + + +def run_in_executor(loop, executor, func, *args, tracer=None): + """Wrapper function that sets a context to the newly created Thread. + + If the current task has a Context, it will be attached as an empty Context with the current_span activated to + inherit the ``trace_id`` and the ``parent_id``. + + Because the Executor can run the Thread immediately or after the + coroutine is executed, we may have two different scenarios: + * the Context is copied in the new Thread and the trace is sent twice + * the coroutine flushes the Context and when the Thread copies the + Context it is already empty (so it will be a root Span) + + To support both situations, we create a new Context that knows only what was + the latest active Span when the new thread was created. In this new thread, + we fallback to the thread-local ``Context`` storage. + + """ + tracer = tracer or ddtrace.tracer + ctx = Context() + current_ctx = tracer.get_call_context() + ctx._current_span = current_ctx._current_span + + # prepare the future using an executor wrapper + future = loop.run_in_executor(executor, _wrap_executor, func, args, tracer, ctx) + return future + + +def _wrap_executor(fn, args, tracer, ctx): + """ + This function is executed in the newly created Thread so the right + ``Context`` can be set in the thread-local storage. This operation + is safe because the ``Context`` class is thread-safe and can be + updated concurrently. + """ + # the AsyncioContextProvider knows that this is a new thread + # so it is legit to pass the Context in the thread-local storage; + # fn() will be executed outside the asyncio loop as a synchronous code + tracer.context_provider.activate(ctx) + return fn(*args) + + +def create_task(*args, **kwargs): + """This function spawns a task with a Context that inherits the + `trace_id` and the `parent_id` from the current active one if available. + """ + loop = asyncio.get_event_loop() + return wrapped_create_task(loop.create_task, None, args, kwargs) diff --git a/ddtrace/contrib/asyncio/patch.py b/ddtrace/contrib/asyncio/patch.py new file mode 100644 index 0000000000..4d38f0fac2 --- /dev/null +++ b/ddtrace/contrib/asyncio/patch.py @@ -0,0 +1,32 @@ +import asyncio + +from ddtrace.vendor.wrapt import wrap_function_wrapper as _w + +from ...internal.context_manager import CONTEXTVARS_IS_AVAILABLE +from .wrappers import wrapped_create_task, wrapped_create_task_contextvars +from ...utils.wrappers import unwrap as _u + + +def patch(): + """Patches current loop `create_task()` method to enable spawned tasks to + parent to the base task context. + """ + if getattr(asyncio, '_datadog_patch', False): + return + setattr(asyncio, '_datadog_patch', True) + + loop = asyncio.get_event_loop() + if CONTEXTVARS_IS_AVAILABLE: + _w(loop, 'create_task', wrapped_create_task_contextvars) + else: + _w(loop, 'create_task', wrapped_create_task) + + +def unpatch(): + """Remove tracing from patched modules.""" + + if getattr(asyncio, '_datadog_patch', False): + setattr(asyncio, '_datadog_patch', False) + + loop = asyncio.get_event_loop() + _u(loop, 'create_task') diff --git a/ddtrace/contrib/asyncio/provider.py b/ddtrace/contrib/asyncio/provider.py new file mode 100644 index 0000000000..6748e2edd6 --- /dev/null +++ b/ddtrace/contrib/asyncio/provider.py @@ -0,0 +1,86 @@ +import asyncio + +from ...context import Context +from ...provider import DefaultContextProvider + +# Task attribute used to set/get the Context instance +CONTEXT_ATTR = '__datadog_context' + + +class AsyncioContextProvider(DefaultContextProvider): + """ + Context provider that retrieves all contexts for the current asyncio + execution. It must be used in asynchronous programming that relies + in the built-in ``asyncio`` library. Framework instrumentation that + is built on top of the ``asyncio`` library, can use this provider. + + This Context Provider inherits from ``DefaultContextProvider`` because + it uses a thread-local storage when the ``Context`` is propagated to + a different thread, than the one that is running the async loop. + """ + def activate(self, context, loop=None): + """Sets the scoped ``Context`` for the current running ``Task``. + """ + loop = self._get_loop(loop) + if not loop: + self._local.set(context) + return context + + # the current unit of work (if tasks are used) + task = asyncio.Task.current_task(loop=loop) + setattr(task, CONTEXT_ATTR, context) + return context + + def _get_loop(self, loop=None): + """Helper to try and resolve the current loop""" + try: + return loop or asyncio.get_event_loop() + except RuntimeError: + # Detects if a loop is available in the current thread; + # DEV: This happens when a new thread is created from the out that is running the async loop + # DEV: It's possible that a different Executor is handling a different Thread that + # works with blocking code. In that case, we fallback to a thread-local Context. + pass + return None + + def _has_active_context(self, loop=None): + """Helper to determine if we have a currently active context""" + loop = self._get_loop(loop=loop) + if loop is None: + return self._local._has_active_context() + + # the current unit of work (if tasks are used) + task = asyncio.Task.current_task(loop=loop) + if task is None: + return False + + ctx = getattr(task, CONTEXT_ATTR, None) + return ctx is not None + + def active(self, loop=None): + """ + Returns the scoped Context for this execution flow. The ``Context`` uses + the current task as a carrier so if a single task is used for the entire application, + the context must be handled separately. + """ + loop = self._get_loop(loop=loop) + if not loop: + return self._local.get() + + # the current unit of work (if tasks are used) + task = asyncio.Task.current_task(loop=loop) + if task is None: + # providing a detached Context from the current Task, may lead to + # wrong traces. This defensive behavior grants that a trace can + # still be built without raising exceptions + return Context() + + ctx = getattr(task, CONTEXT_ATTR, None) + if ctx is not None: + # return the active Context for this task (if any) + return ctx + + # create a new Context using the Task as a Context carrier + ctx = Context() + setattr(task, CONTEXT_ATTR, ctx) + return ctx diff --git a/ddtrace/contrib/asyncio/wrappers.py b/ddtrace/contrib/asyncio/wrappers.py new file mode 100644 index 0000000000..00d7d8db8f --- /dev/null +++ b/ddtrace/contrib/asyncio/wrappers.py @@ -0,0 +1,58 @@ +import ddtrace + +from .compat import asyncio_current_task +from .provider import CONTEXT_ATTR +from ...context import Context + + +def wrapped_create_task(wrapped, instance, args, kwargs): + """Wrapper for ``create_task(coro)`` that propagates the current active + ``Context`` to the new ``Task``. This function is useful to connect traces + of detached executions. + + Note: we can't just link the task contexts due to the following scenario: + * begin task A + * task A starts task B1..B10 + * finish task B1-B9 (B10 still on trace stack) + * task A starts task C + * now task C gets parented to task B10 since it's still on the stack, + however was not actually triggered by B10 + """ + new_task = wrapped(*args, **kwargs) + current_task = asyncio_current_task() + + ctx = getattr(current_task, CONTEXT_ATTR, None) + if ctx: + # current task has a context, so parent a new context to the base context + new_ctx = Context( + trace_id=ctx.trace_id, + span_id=ctx.span_id, + sampling_priority=ctx.sampling_priority, + ) + setattr(new_task, CONTEXT_ATTR, new_ctx) + + return new_task + + +def wrapped_create_task_contextvars(wrapped, instance, args, kwargs): + """Wrapper for ``create_task(coro)`` that propagates the current active + ``Context`` to the new ``Task``. This function is useful to connect traces + of detached executions. Uses contextvars for task-local storage. + """ + current_task_ctx = ddtrace.tracer.get_call_context() + + if not current_task_ctx: + # no current context exists so nothing special to be done in handling + # context for new task + return wrapped(*args, **kwargs) + + # clone and activate current task's context for new task to support + # detached executions + new_task_ctx = current_task_ctx.clone() + ddtrace.tracer.context_provider.activate(new_task_ctx) + try: + # activated context will now be copied to new task + return wrapped(*args, **kwargs) + finally: + # reactivate current task context + ddtrace.tracer.context_provider.activate(current_task_ctx) diff --git a/ddtrace/contrib/boto/__init__.py b/ddtrace/contrib/boto/__init__.py new file mode 100644 index 0000000000..f5b2b1fdf5 --- /dev/null +++ b/ddtrace/contrib/boto/__init__.py @@ -0,0 +1,24 @@ +""" +Boto integration will trace all AWS calls made via boto2. +This integration is automatically patched when using ``patch_all()``:: + + import boto.ec2 + from ddtrace import patch + + # If not patched yet, you can patch boto specifically + patch(boto=True) + + # This will report spans with the default instrumentation + ec2 = boto.ec2.connect_to_region("us-west-2") + # Example of instrumented query + ec2.get_all_instances() +""" + +from ...utils.importlib import require_modules + +required_modules = ['boto.connection'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .patch import patch + __all__ = ['patch'] diff --git a/ddtrace/contrib/boto/patch.py b/ddtrace/contrib/boto/patch.py new file mode 100644 index 0000000000..c1de9e9cb5 --- /dev/null +++ b/ddtrace/contrib/boto/patch.py @@ -0,0 +1,183 @@ +import boto.connection +from ddtrace.vendor import wrapt +import inspect + +from ddtrace import config +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from ...pin import Pin +from ...ext import SpanTypes, http, aws +from ...utils.wrappers import unwrap + + +# Original boto client class +_Boto_client = boto.connection.AWSQueryConnection + +AWS_QUERY_ARGS_NAME = ('operation_name', 'params', 'path', 'verb') +AWS_AUTH_ARGS_NAME = ( + 'method', + 'path', + 'headers', + 'data', + 'host', + 'auth_path', + 'sender', +) +AWS_QUERY_TRACED_ARGS = ['operation_name', 'params', 'path'] +AWS_AUTH_TRACED_ARGS = ['path', 'data', 'host'] + + +def patch(): + if getattr(boto.connection, '_datadog_patch', False): + return + setattr(boto.connection, '_datadog_patch', True) + + # AWSQueryConnection and AWSAuthConnection are two different classes called by + # different services for connection. + # For exemple EC2 uses AWSQueryConnection and S3 uses AWSAuthConnection + wrapt.wrap_function_wrapper( + 'boto.connection', 'AWSQueryConnection.make_request', patched_query_request + ) + wrapt.wrap_function_wrapper( + 'boto.connection', 'AWSAuthConnection.make_request', patched_auth_request + ) + Pin(service='aws', app='aws').onto( + boto.connection.AWSQueryConnection + ) + Pin(service='aws', app='aws').onto( + boto.connection.AWSAuthConnection + ) + + +def unpatch(): + if getattr(boto.connection, '_datadog_patch', False): + setattr(boto.connection, '_datadog_patch', False) + unwrap(boto.connection.AWSQueryConnection, 'make_request') + unwrap(boto.connection.AWSAuthConnection, 'make_request') + + +# ec2, sqs, kinesis +def patched_query_request(original_func, instance, args, kwargs): + + pin = Pin.get_from(instance) + if not pin or not pin.enabled(): + return original_func(*args, **kwargs) + + endpoint_name = getattr(instance, 'host').split('.')[0] + + with pin.tracer.trace( + '{}.command'.format(endpoint_name), + service='{}.{}'.format(pin.service, endpoint_name), + span_type=SpanTypes.HTTP, + ) as span: + + operation_name = None + if args: + operation_name = args[0] + span.resource = '%s.%s' % (endpoint_name, operation_name.lower()) + else: + span.resource = endpoint_name + + aws.add_span_arg_tags(span, endpoint_name, args, AWS_QUERY_ARGS_NAME, AWS_QUERY_TRACED_ARGS) + + # Obtaining region name + region_name = _get_instance_region_name(instance) + + meta = { + aws.AGENT: 'boto', + aws.OPERATION: operation_name, + } + if region_name: + meta[aws.REGION] = region_name + + span.set_tags(meta) + + # Original func returns a boto.connection.HTTPResponse object + result = original_func(*args, **kwargs) + span.set_tag(http.STATUS_CODE, getattr(result, 'status')) + span.set_tag(http.METHOD, getattr(result, '_method')) + + # set analytics sample rate + span.set_tag( + ANALYTICS_SAMPLE_RATE_KEY, + config.boto.get_analytics_sample_rate() + ) + + return result + + +# s3, lambda +def patched_auth_request(original_func, instance, args, kwargs): + + # Catching the name of the operation that called make_request() + operation_name = None + + # Go up the stack until we get the first non-ddtrace module + # DEV: For `lambda.list_functions()` this should be: + # - ddtrace.contrib.boto.patch + # - ddtrace.vendor.wrapt.wrappers + # - boto.awslambda.layer1 (make_request) + # - boto.awslambda.layer1 (list_functions) + # But can vary depending on Python versions; that's why we use an heuristic + frame = inspect.currentframe().f_back + operation_name = None + while frame: + if frame.f_code.co_name == 'make_request': + operation_name = frame.f_back.f_code.co_name + break + frame = frame.f_back + + pin = Pin.get_from(instance) + if not pin or not pin.enabled(): + return original_func(*args, **kwargs) + + endpoint_name = getattr(instance, 'host').split('.')[0] + + with pin.tracer.trace( + '{}.command'.format(endpoint_name), + service='{}.{}'.format(pin.service, endpoint_name), + span_type=SpanTypes.HTTP, + ) as span: + + if args: + http_method = args[0] + span.resource = '%s.%s' % (endpoint_name, http_method.lower()) + else: + span.resource = endpoint_name + + aws.add_span_arg_tags(span, endpoint_name, args, AWS_AUTH_ARGS_NAME, AWS_AUTH_TRACED_ARGS) + + # Obtaining region name + region_name = _get_instance_region_name(instance) + + meta = { + aws.AGENT: 'boto', + aws.OPERATION: operation_name, + } + if region_name: + meta[aws.REGION] = region_name + + span.set_tags(meta) + + # Original func returns a boto.connection.HTTPResponse object + result = original_func(*args, **kwargs) + span.set_tag(http.STATUS_CODE, getattr(result, 'status')) + span.set_tag(http.METHOD, getattr(result, '_method')) + + # set analytics sample rate + span.set_tag( + ANALYTICS_SAMPLE_RATE_KEY, + config.boto.get_analytics_sample_rate() + ) + + return result + + +def _get_instance_region_name(instance): + region = getattr(instance, 'region', None) + + if not region: + return None + if isinstance(region, str): + return region.split(':')[1] + else: + return region.name diff --git a/ddtrace/contrib/botocore/__init__.py b/ddtrace/contrib/botocore/__init__.py new file mode 100644 index 0000000000..adba2c01ba --- /dev/null +++ b/ddtrace/contrib/botocore/__init__.py @@ -0,0 +1,28 @@ +""" +The Botocore integration will trace all AWS calls made with the botocore +library. Libraries like Boto3 that use Botocore will also be patched. + +This integration is automatically patched when using ``patch_all()``:: + + import botocore.session + from ddtrace import patch + + # If not patched yet, you can patch botocore specifically + patch(botocore=True) + + # This will report spans with the default instrumentation + botocore.session.get_session() + lambda_client = session.create_client('lambda', region_name='us-east-1') + # Example of instrumented query + lambda_client.list_functions() +""" + + +from ...utils.importlib import require_modules + +required_modules = ['botocore.client'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .patch import patch + __all__ = ['patch'] diff --git a/ddtrace/contrib/botocore/patch.py b/ddtrace/contrib/botocore/patch.py new file mode 100644 index 0000000000..87ed79ee96 --- /dev/null +++ b/ddtrace/contrib/botocore/patch.py @@ -0,0 +1,81 @@ +""" +Trace queries to aws api done via botocore client +""" +# 3p +from ddtrace.vendor import wrapt +from ddtrace import config +import botocore.client + +# project +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from ...pin import Pin +from ...ext import SpanTypes, http, aws +from ...utils.formats import deep_getattr +from ...utils.wrappers import unwrap + + +# Original botocore client class +_Botocore_client = botocore.client.BaseClient + +ARGS_NAME = ('action', 'params', 'path', 'verb') +TRACED_ARGS = ['params', 'path', 'verb'] + + +def patch(): + if getattr(botocore.client, '_datadog_patch', False): + return + setattr(botocore.client, '_datadog_patch', True) + + wrapt.wrap_function_wrapper('botocore.client', 'BaseClient._make_api_call', patched_api_call) + Pin(service='aws', app='aws').onto(botocore.client.BaseClient) + + +def unpatch(): + if getattr(botocore.client, '_datadog_patch', False): + setattr(botocore.client, '_datadog_patch', False) + unwrap(botocore.client.BaseClient, '_make_api_call') + + +def patched_api_call(original_func, instance, args, kwargs): + + pin = Pin.get_from(instance) + if not pin or not pin.enabled(): + return original_func(*args, **kwargs) + + endpoint_name = deep_getattr(instance, '_endpoint._endpoint_prefix') + + with pin.tracer.trace('{}.command'.format(endpoint_name), + service='{}.{}'.format(pin.service, endpoint_name), + span_type=SpanTypes.HTTP) as span: + + operation = None + if args: + operation = args[0] + span.resource = '%s.%s' % (endpoint_name, operation.lower()) + + else: + span.resource = endpoint_name + + aws.add_span_arg_tags(span, endpoint_name, args, ARGS_NAME, TRACED_ARGS) + + region_name = deep_getattr(instance, 'meta.region_name') + + meta = { + 'aws.agent': 'botocore', + 'aws.operation': operation, + 'aws.region': region_name, + } + span.set_tags(meta) + + result = original_func(*args, **kwargs) + + span.set_tag(http.STATUS_CODE, result['ResponseMetadata']['HTTPStatusCode']) + span.set_tag('retry_attempts', result['ResponseMetadata']['RetryAttempts']) + + # set analytics sample rate + span.set_tag( + ANALYTICS_SAMPLE_RATE_KEY, + config.botocore.get_analytics_sample_rate() + ) + + return result diff --git a/ddtrace/contrib/bottle/__init__.py b/ddtrace/contrib/bottle/__init__.py new file mode 100644 index 0000000000..bcf3a5715a --- /dev/null +++ b/ddtrace/contrib/bottle/__init__.py @@ -0,0 +1,23 @@ +""" +The bottle integration traces the Bottle web framework. Add the following +plugin to your app:: + + import bottle + from ddtrace import tracer + from ddtrace.contrib.bottle import TracePlugin + + app = bottle.Bottle() + plugin = TracePlugin(service="my-web-app") + app.install(plugin) +""" + +from ...utils.importlib import require_modules + +required_modules = ['bottle'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .trace import TracePlugin + from .patch import patch + + __all__ = ['TracePlugin', 'patch'] diff --git a/ddtrace/contrib/bottle/patch.py b/ddtrace/contrib/bottle/patch.py new file mode 100644 index 0000000000..802b4e0704 --- /dev/null +++ b/ddtrace/contrib/bottle/patch.py @@ -0,0 +1,26 @@ +import os + +from .trace import TracePlugin + +import bottle + +from ddtrace.vendor import wrapt + + +def patch(): + """Patch the bottle.Bottle class + """ + if getattr(bottle, '_datadog_patch', False): + return + + setattr(bottle, '_datadog_patch', True) + wrapt.wrap_function_wrapper('bottle', 'Bottle.__init__', traced_init) + + +def traced_init(wrapped, instance, args, kwargs): + wrapped(*args, **kwargs) + + service = os.environ.get('DATADOG_SERVICE_NAME') or 'bottle' + + plugin = TracePlugin(service=service) + instance.install(plugin) diff --git a/ddtrace/contrib/bottle/trace.py b/ddtrace/contrib/bottle/trace.py new file mode 100644 index 0000000000..12c196b32e --- /dev/null +++ b/ddtrace/contrib/bottle/trace.py @@ -0,0 +1,83 @@ +# 3p +from bottle import response, request, HTTPError, HTTPResponse + +# stdlib +import ddtrace + +# project +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from ...ext import SpanTypes, http +from ...propagation.http import HTTPPropagator +from ...settings import config + + +class TracePlugin(object): + name = 'trace' + api = 2 + + def __init__(self, service='bottle', tracer=None, distributed_tracing=True): + self.service = service + self.tracer = tracer or ddtrace.tracer + self.distributed_tracing = distributed_tracing + + def apply(self, callback, route): + + def wrapped(*args, **kwargs): + if not self.tracer or not self.tracer.enabled: + return callback(*args, **kwargs) + + resource = '{} {}'.format(request.method, route.rule) + + # Propagate headers such as x-datadog-trace-id. + if self.distributed_tracing: + propagator = HTTPPropagator() + context = propagator.extract(request.headers) + if context.trace_id: + self.tracer.context_provider.activate(context) + + with self.tracer.trace( + 'bottle.request', service=self.service, resource=resource, span_type=SpanTypes.WEB + ) as s: + # set analytics sample rate with global config enabled + s.set_tag( + ANALYTICS_SAMPLE_RATE_KEY, + config.bottle.get_analytics_sample_rate(use_global_config=True) + ) + + code = None + result = None + try: + result = callback(*args, **kwargs) + return result + except (HTTPError, HTTPResponse) as e: + # you can interrupt flows using abort(status_code, 'message')... + # we need to respect the defined status_code. + # we also need to handle when response is raised as is the + # case with a 4xx status + code = e.status_code + raise + except Exception: + # bottle doesn't always translate unhandled exceptions, so + # we mark it here. + code = 500 + raise + finally: + if isinstance(result, HTTPResponse): + response_code = result.status_code + elif code: + response_code = code + else: + # bottle local response has not yet been updated so this + # will be default + response_code = response.status_code + + if 500 <= response_code < 600: + s.error = 1 + + s.set_tag(http.STATUS_CODE, response_code) + s.set_tag(http.URL, request.urlparts._replace(query='').geturl()) + s.set_tag(http.METHOD, request.method) + if config.bottle.trace_query_string: + s.set_tag(http.QUERY_STRING, request.query_string) + + return wrapped diff --git a/ddtrace/contrib/cassandra/__init__.py b/ddtrace/contrib/cassandra/__init__.py new file mode 100644 index 0000000000..bc2bf63814 --- /dev/null +++ b/ddtrace/contrib/cassandra/__init__.py @@ -0,0 +1,35 @@ +"""Instrument Cassandra to report Cassandra queries. + +``patch_all`` will automatically patch your Cluster instance to make it work. +:: + + from ddtrace import Pin, patch + from cassandra.cluster import Cluster + + # If not patched yet, you can patch cassandra specifically + patch(cassandra=True) + + # This will report spans with the default instrumentation + cluster = Cluster(contact_points=["127.0.0.1"], port=9042) + session = cluster.connect("my_keyspace") + # Example of instrumented query + session.execute("select id from my_table limit 10;") + + # Use a pin to specify metadata related to this cluster + cluster = Cluster(contact_points=['10.1.1.3', '10.1.1.4', '10.1.1.5'], port=9042) + Pin.override(cluster, service='cassandra-backend') + session = cluster.connect("my_keyspace") + session.execute("select id from my_table limit 10;") +""" +from ...utils.importlib import require_modules + + +required_modules = ['cassandra.cluster'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .session import get_traced_cassandra, patch + __all__ = [ + 'get_traced_cassandra', + 'patch', + ] diff --git a/ddtrace/contrib/cassandra/patch.py b/ddtrace/contrib/cassandra/patch.py new file mode 100644 index 0000000000..52f5d90017 --- /dev/null +++ b/ddtrace/contrib/cassandra/patch.py @@ -0,0 +1,3 @@ +from .session import patch, unpatch + +__all__ = ['patch', 'unpatch'] diff --git a/ddtrace/contrib/cassandra/session.py b/ddtrace/contrib/cassandra/session.py new file mode 100644 index 0000000000..512aba7758 --- /dev/null +++ b/ddtrace/contrib/cassandra/session.py @@ -0,0 +1,297 @@ +""" +Trace queries along a session to a cassandra cluster +""" +import sys + +# 3p +import cassandra.cluster + +# project +from ...compat import stringify +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from ...ext import SpanTypes, net, cassandra as cassx, errors +from ...internal.logger import get_logger +from ...pin import Pin +from ...settings import config +from ...utils.deprecation import deprecated +from ...utils.formats import deep_getattr +from ...vendor import wrapt + +log = get_logger(__name__) + +RESOURCE_MAX_LENGTH = 5000 +SERVICE = 'cassandra' +CURRENT_SPAN = '_ddtrace_current_span' +PAGE_NUMBER = '_ddtrace_page_number' + +# Original connect connect function +_connect = cassandra.cluster.Cluster.connect + + +def patch(): + """ patch will add tracing to the cassandra library. """ + setattr(cassandra.cluster.Cluster, 'connect', + wrapt.FunctionWrapper(_connect, traced_connect)) + Pin(service=SERVICE, app=SERVICE).onto(cassandra.cluster.Cluster) + + +def unpatch(): + cassandra.cluster.Cluster.connect = _connect + + +def traced_connect(func, instance, args, kwargs): + session = func(*args, **kwargs) + if not isinstance(session.execute, wrapt.FunctionWrapper): + # FIXME[matt] this should probably be private. + setattr(session, 'execute_async', wrapt.FunctionWrapper(session.execute_async, traced_execute_async)) + return session + + +def _close_span_on_success(result, future): + span = getattr(future, CURRENT_SPAN, None) + if not span: + log.debug('traced_set_final_result was not able to get the current span from the ResponseFuture') + return + try: + span.set_tags(_extract_result_metas(cassandra.cluster.ResultSet(future, result))) + except Exception: + log.debug('an exception occured while setting tags', exc_info=True) + finally: + span.finish() + delattr(future, CURRENT_SPAN) + + +def traced_set_final_result(func, instance, args, kwargs): + result = args[0] + _close_span_on_success(result, instance) + return func(*args, **kwargs) + + +def _close_span_on_error(exc, future): + span = getattr(future, CURRENT_SPAN, None) + if not span: + log.debug('traced_set_final_exception was not able to get the current span from the ResponseFuture') + return + try: + # handling the exception manually because we + # don't have an ongoing exception here + span.error = 1 + span.set_tag(errors.ERROR_MSG, exc.args[0]) + span.set_tag(errors.ERROR_TYPE, exc.__class__.__name__) + except Exception: + log.debug('traced_set_final_exception was not able to set the error, failed with error', exc_info=True) + finally: + span.finish() + delattr(future, CURRENT_SPAN) + + +def traced_set_final_exception(func, instance, args, kwargs): + exc = args[0] + _close_span_on_error(exc, instance) + return func(*args, **kwargs) + + +def traced_start_fetching_next_page(func, instance, args, kwargs): + has_more_pages = getattr(instance, 'has_more_pages', True) + if not has_more_pages: + return func(*args, **kwargs) + session = getattr(instance, 'session', None) + cluster = getattr(session, 'cluster', None) + pin = Pin.get_from(cluster) + if not pin or not pin.enabled(): + return func(*args, **kwargs) + + # In case the current span is not finished we make sure to finish it + old_span = getattr(instance, CURRENT_SPAN, None) + if old_span: + log.debug('previous span was not finished before fetching next page') + old_span.finish() + + query = getattr(instance, 'query', None) + + span = _start_span_and_set_tags(pin, query, session, cluster) + + page_number = getattr(instance, PAGE_NUMBER, 1) + 1 + setattr(instance, PAGE_NUMBER, page_number) + setattr(instance, CURRENT_SPAN, span) + try: + return func(*args, **kwargs) + except Exception: + with span: + span.set_exc_info(*sys.exc_info()) + raise + + +def traced_execute_async(func, instance, args, kwargs): + cluster = getattr(instance, 'cluster', None) + pin = Pin.get_from(cluster) + if not pin or not pin.enabled(): + return func(*args, **kwargs) + + query = kwargs.get('query') or args[0] + + span = _start_span_and_set_tags(pin, query, instance, cluster) + + try: + result = func(*args, **kwargs) + setattr(result, CURRENT_SPAN, span) + setattr(result, PAGE_NUMBER, 1) + setattr( + result, + '_set_final_result', + wrapt.FunctionWrapper( + result._set_final_result, + traced_set_final_result + ) + ) + setattr( + result, + '_set_final_exception', + wrapt.FunctionWrapper( + result._set_final_exception, + traced_set_final_exception + ) + ) + setattr( + result, + 'start_fetching_next_page', + wrapt.FunctionWrapper( + result.start_fetching_next_page, + traced_start_fetching_next_page + ) + ) + # Since we cannot be sure that the previous methods were overwritten + # before the call ended, we add callbacks that will be run + # synchronously if the call already returned and we remove them right + # after. + result.add_callbacks( + _close_span_on_success, + _close_span_on_error, + callback_args=(result,), + errback_args=(result,) + ) + result.clear_callbacks() + return result + except Exception: + with span: + span.set_exc_info(*sys.exc_info()) + raise + + +def _start_span_and_set_tags(pin, query, session, cluster): + service = pin.service + tracer = pin.tracer + span = tracer.trace('cassandra.query', service=service, span_type=SpanTypes.CASSANDRA) + _sanitize_query(span, query) + span.set_tags(_extract_session_metas(session)) # FIXME[matt] do once? + span.set_tags(_extract_cluster_metas(cluster)) + # set analytics sample rate if enabled + span.set_tag( + ANALYTICS_SAMPLE_RATE_KEY, + config.cassandra.get_analytics_sample_rate() + ) + return span + + +def _extract_session_metas(session): + metas = {} + + if getattr(session, 'keyspace', None): + # FIXME the keyspace can be overridden explicitly in the query itself + # e.g. 'select * from trace.hash_to_resource' + metas[cassx.KEYSPACE] = session.keyspace.lower() + + return metas + + +def _extract_cluster_metas(cluster): + metas = {} + if deep_getattr(cluster, 'metadata.cluster_name'): + metas[cassx.CLUSTER] = cluster.metadata.cluster_name + if getattr(cluster, 'port', None): + metas[net.TARGET_PORT] = cluster.port + + return metas + + +def _extract_result_metas(result): + metas = {} + if result is None: + return metas + + future = getattr(result, 'response_future', None) + + if future: + # get the host + host = getattr(future, 'coordinator_host', None) + if host: + metas[net.TARGET_HOST] = host + elif hasattr(future, '_current_host'): + address = deep_getattr(future, '_current_host.address') + if address: + metas[net.TARGET_HOST] = address + + query = getattr(future, 'query', None) + if getattr(query, 'consistency_level', None): + metas[cassx.CONSISTENCY_LEVEL] = query.consistency_level + if getattr(query, 'keyspace', None): + metas[cassx.KEYSPACE] = query.keyspace.lower() + + page_number = getattr(future, PAGE_NUMBER, 1) + has_more_pages = getattr(future, 'has_more_pages') + is_paginated = has_more_pages or page_number > 1 + metas[cassx.PAGINATED] = is_paginated + if is_paginated: + metas[cassx.PAGE_NUMBER] = page_number + + if hasattr(result, 'current_rows'): + result_rows = result.current_rows or [] + metas[cassx.ROW_COUNT] = len(result_rows) + + return metas + + +def _sanitize_query(span, query): + # TODO (aaditya): fix this hacky type check. we need it to avoid circular imports + t = type(query).__name__ + + resource = None + if t in ('SimpleStatement', 'PreparedStatement'): + # reset query if a string is available + resource = getattr(query, 'query_string', query) + elif t == 'BatchStatement': + resource = 'BatchStatement' + # Each element in `_statements_and_parameters` is: + # (is_prepared, statement, parameters) + # ref:https://github.com/datastax/python-driver/blob/13d6d72be74f40fcef5ec0f2b3e98538b3b87459/cassandra/query.py#L844 + # + # For prepared statements, the `statement` value is just the query_id + # which is not a statement and when trying to join with other strings + # raises an error in python3 around joining bytes to unicode, so this + # just filters out prepared statements from this tag value + q = '; '.join(q[1] for q in query._statements_and_parameters[:2] if not q[0]) + span.set_tag('cassandra.query', q) + span.set_metric('cassandra.batch_size', len(query._statements_and_parameters)) + elif t == 'BoundStatement': + ps = getattr(query, 'prepared_statement', None) + if ps: + resource = getattr(ps, 'query_string', None) + elif t == 'str': + resource = query + else: + resource = 'unknown-query-type' # FIXME[matt] what else do to here? + + span.resource = stringify(resource)[:RESOURCE_MAX_LENGTH] + + +# +# DEPRECATED +# + +@deprecated(message='Use patching instead (see the docs).', version='1.0.0') +def get_traced_cassandra(*args, **kwargs): + return _get_traced_cluster(*args, **kwargs) + + +def _get_traced_cluster(*args, **kwargs): + return cassandra.cluster.Cluster diff --git a/ddtrace/contrib/celery/__init__.py b/ddtrace/contrib/celery/__init__.py new file mode 100644 index 0000000000..1acd7fb72c --- /dev/null +++ b/ddtrace/contrib/celery/__init__.py @@ -0,0 +1,54 @@ +""" +The Celery integration will trace all tasks that are executed in the +background. Functions and class based tasks are traced only if the Celery API +is used, so calling the function directly or via the ``run()`` method will not +generate traces. However, calling ``apply()``, ``apply_async()`` and ``delay()`` +will produce tracing data. To trace your Celery application, call the patch method:: + + import celery + from ddtrace import patch + + patch(celery=True) + app = celery.Celery() + + @app.task + def my_task(): + pass + + class MyTask(app.Task): + def run(self): + pass + + +To change Celery service name, you can use the ``Config`` API as follows:: + + from ddtrace import config + + # change service names for producers and workers + config.celery['producer_service_name'] = 'task-queue' + config.celery['worker_service_name'] = 'worker-notify' + +By default, reported service names are: + * ``celery-producer`` when tasks are enqueued for processing + * ``celery-worker`` when tasks are processed by a Celery process + +""" +from ...utils.importlib import require_modules + + +required_modules = ['celery'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .app import patch_app, unpatch_app + from .patch import patch, unpatch + from .task import patch_task, unpatch_task + + __all__ = [ + 'patch', + 'patch_app', + 'patch_task', + 'unpatch', + 'unpatch_app', + 'unpatch_task', + ] diff --git a/ddtrace/contrib/celery/app.py b/ddtrace/contrib/celery/app.py new file mode 100644 index 0000000000..0c3a835c7f --- /dev/null +++ b/ddtrace/contrib/celery/app.py @@ -0,0 +1,60 @@ +from celery import signals + +from ddtrace import Pin, config +from ddtrace.pin import _DD_PIN_NAME + +from .constants import APP +from .signals import ( + trace_prerun, + trace_postrun, + trace_before_publish, + trace_after_publish, + trace_failure, + trace_retry, +) + + +def patch_app(app, pin=None): + """Attach the Pin class to the application and connect + our handlers to Celery signals. + """ + if getattr(app, '__datadog_patch', False): + return + setattr(app, '__datadog_patch', True) + + # attach the PIN object + pin = pin or Pin( + service=config.celery['worker_service_name'], + app=APP, + _config=config.celery, + ) + pin.onto(app) + # connect to the Signal framework + + signals.task_prerun.connect(trace_prerun, weak=False) + signals.task_postrun.connect(trace_postrun, weak=False) + signals.before_task_publish.connect(trace_before_publish, weak=False) + signals.after_task_publish.connect(trace_after_publish, weak=False) + signals.task_failure.connect(trace_failure, weak=False) + signals.task_retry.connect(trace_retry, weak=False) + return app + + +def unpatch_app(app): + """Remove the Pin instance from the application and disconnect + our handlers from Celery signal framework. + """ + if not getattr(app, '__datadog_patch', False): + return + setattr(app, '__datadog_patch', False) + + pin = Pin.get_from(app) + if pin is not None: + delattr(app, _DD_PIN_NAME) + + signals.task_prerun.disconnect(trace_prerun) + signals.task_postrun.disconnect(trace_postrun) + signals.before_task_publish.disconnect(trace_before_publish) + signals.after_task_publish.disconnect(trace_after_publish) + signals.task_failure.disconnect(trace_failure) + signals.task_retry.disconnect(trace_retry) diff --git a/ddtrace/contrib/celery/constants.py b/ddtrace/contrib/celery/constants.py new file mode 100644 index 0000000000..407c2125c8 --- /dev/null +++ b/ddtrace/contrib/celery/constants.py @@ -0,0 +1,22 @@ +from os import getenv + +# Celery Context key +CTX_KEY = '__dd_task_span' + +# Span names +PRODUCER_ROOT_SPAN = 'celery.apply' +WORKER_ROOT_SPAN = 'celery.run' + +# Task operations +TASK_TAG_KEY = 'celery.action' +TASK_APPLY = 'apply' +TASK_APPLY_ASYNC = 'apply_async' +TASK_RUN = 'run' +TASK_RETRY_REASON_KEY = 'celery.retry.reason' + +# Service info +APP = 'celery' +# `getenv()` call must be kept for backward compatibility; we may remove it +# later when we do a full migration to the `Config` class +PRODUCER_SERVICE = getenv('DATADOG_SERVICE_NAME') or 'celery-producer' +WORKER_SERVICE = getenv('DATADOG_SERVICE_NAME') or 'celery-worker' diff --git a/ddtrace/contrib/celery/patch.py b/ddtrace/contrib/celery/patch.py new file mode 100644 index 0000000000..b6e9793840 --- /dev/null +++ b/ddtrace/contrib/celery/patch.py @@ -0,0 +1,28 @@ +import celery + +from ddtrace import config + +from .app import patch_app, unpatch_app +from .constants import PRODUCER_SERVICE, WORKER_SERVICE +from ...utils.formats import get_env + + +# Celery default settings +config._add('celery', { + 'producer_service_name': get_env('celery', 'producer_service_name', PRODUCER_SERVICE), + 'worker_service_name': get_env('celery', 'worker_service_name', WORKER_SERVICE), +}) + + +def patch(): + """Instrument Celery base application and the `TaskRegistry` so + that any new registered task is automatically instrumented. In the + case of Django-Celery integration, also the `@shared_task` decorator + must be instrumented because Django doesn't use the Celery registry. + """ + patch_app(celery.Celery) + + +def unpatch(): + """Disconnect all signals and remove Tracing capabilities""" + unpatch_app(celery.Celery) diff --git a/ddtrace/contrib/celery/signals.py b/ddtrace/contrib/celery/signals.py new file mode 100644 index 0000000000..2afcce556a --- /dev/null +++ b/ddtrace/contrib/celery/signals.py @@ -0,0 +1,154 @@ +from ddtrace import Pin, config + +from celery import registry + +from ...ext import SpanTypes +from ...internal.logger import get_logger +from . import constants as c +from .utils import tags_from_context, retrieve_task_id, attach_span, detach_span, retrieve_span + +log = get_logger(__name__) + + +def trace_prerun(*args, **kwargs): + # safe-guard to avoid crashes in case the signals API + # changes in Celery + task = kwargs.get('sender') + task_id = kwargs.get('task_id') + log.debug('prerun signal start task_id=%s', task_id) + if task is None or task_id is None: + log.debug('unable to extract the Task and the task_id. This version of Celery may not be supported.') + return + + # retrieve the task Pin or fallback to the global one + pin = Pin.get_from(task) or Pin.get_from(task.app) + if pin is None: + log.debug('no pin found on task or task.app task_id=%s', task_id) + return + + # propagate the `Span` in the current task Context + service = config.celery['worker_service_name'] + span = pin.tracer.trace(c.WORKER_ROOT_SPAN, service=service, resource=task.name, span_type=SpanTypes.WORKER) + attach_span(task, task_id, span) + + +def trace_postrun(*args, **kwargs): + # safe-guard to avoid crashes in case the signals API + # changes in Celery + task = kwargs.get('sender') + task_id = kwargs.get('task_id') + log.debug('postrun signal task_id=%s', task_id) + if task is None or task_id is None: + log.debug('unable to extract the Task and the task_id. This version of Celery may not be supported.') + return + + # retrieve and finish the Span + span = retrieve_span(task, task_id) + if span is None: + log.warning('no existing span found for task_id=%s', task_id) + return + else: + # request context tags + span.set_tag(c.TASK_TAG_KEY, c.TASK_RUN) + span.set_tags(tags_from_context(kwargs)) + span.set_tags(tags_from_context(task.request)) + span.finish() + detach_span(task, task_id) + + +def trace_before_publish(*args, **kwargs): + # `before_task_publish` signal doesn't propagate the task instance so + # we need to retrieve it from the Celery Registry to access the `Pin`. The + # `Task` instance **does not** include any information about the current + # execution, so it **must not** be used to retrieve `request` data. + task_name = kwargs.get('sender') + task = registry.tasks.get(task_name) + task_id = retrieve_task_id(kwargs) + # safe-guard to avoid crashes in case the signals API + # changes in Celery + if task is None or task_id is None: + log.debug('unable to extract the Task and the task_id. This version of Celery may not be supported.') + return + + # propagate the `Span` in the current task Context + pin = Pin.get_from(task) or Pin.get_from(task.app) + if pin is None: + return + + # apply some tags here because most of the data is not available + # in the task_after_publish signal + service = config.celery['producer_service_name'] + span = pin.tracer.trace(c.PRODUCER_ROOT_SPAN, service=service, resource=task_name) + span.set_tag(c.TASK_TAG_KEY, c.TASK_APPLY_ASYNC) + span.set_tag('celery.id', task_id) + span.set_tags(tags_from_context(kwargs)) + # Note: adding tags from `traceback` or `state` calls will make an + # API call to the backend for the properties so we should rely + # only on the given `Context` + attach_span(task, task_id, span, is_publish=True) + + +def trace_after_publish(*args, **kwargs): + task_name = kwargs.get('sender') + task = registry.tasks.get(task_name) + task_id = retrieve_task_id(kwargs) + # safe-guard to avoid crashes in case the signals API + # changes in Celery + if task is None or task_id is None: + log.debug('unable to extract the Task and the task_id. This version of Celery may not be supported.') + return + + # retrieve and finish the Span + span = retrieve_span(task, task_id, is_publish=True) + if span is None: + return + else: + span.finish() + detach_span(task, task_id, is_publish=True) + + +def trace_failure(*args, **kwargs): + # safe-guard to avoid crashes in case the signals API + # changes in Celery + task = kwargs.get('sender') + task_id = kwargs.get('task_id') + if task is None or task_id is None: + log.debug('unable to extract the Task and the task_id. This version of Celery may not be supported.') + return + + # retrieve and finish the Span + span = retrieve_span(task, task_id) + if span is None: + return + else: + # add Exception tags; post signals are still called + # so we don't need to attach other tags here + ex = kwargs.get('einfo') + if ex is None: + return + if hasattr(task, 'throws') and isinstance(ex.exception, task.throws): + return + span.set_exc_info(ex.type, ex.exception, ex.tb) + + +def trace_retry(*args, **kwargs): + # safe-guard to avoid crashes in case the signals API + # changes in Celery + task = kwargs.get('sender') + context = kwargs.get('request') + if task is None or context is None: + log.debug('unable to extract the Task or the Context. This version of Celery may not be supported.') + return + + reason = kwargs.get('reason') + if not reason: + log.debug('unable to extract the retry reason. This version of Celery may not be supported.') + return + + span = retrieve_span(task, context.id) + if span is None: + return + + # Add retry reason metadata to span + # DEV: Use `str(reason)` instead of `reason.message` in case we get something that isn't an `Exception` + span.set_tag(c.TASK_RETRY_REASON_KEY, str(reason)) diff --git a/ddtrace/contrib/celery/task.py b/ddtrace/contrib/celery/task.py new file mode 100644 index 0000000000..be6c1dd187 --- /dev/null +++ b/ddtrace/contrib/celery/task.py @@ -0,0 +1,32 @@ +from .app import patch_app + +from ...utils.deprecation import deprecation + + +def patch_task(task, pin=None): + """Deprecated API. The new API uses signals that can be activated via + patch(celery=True) or through `ddtrace-run` script. Using this API + enables instrumentation on all tasks. + """ + deprecation( + name='ddtrace.contrib.celery.patch_task', + message='Use `patch(celery=True)` or `ddtrace-run` script instead', + version='1.0.0', + ) + + # Enable instrumentation everywhere + patch_app(task.app) + return task + + +def unpatch_task(task): + """Deprecated API. The new API uses signals that can be deactivated + via unpatch() API. This API is now a no-op implementation so it doesn't + affect instrumented tasks. + """ + deprecation( + name='ddtrace.contrib.celery.patch_task', + message='Use `unpatch()` instead', + version='1.0.0', + ) + return task diff --git a/ddtrace/contrib/celery/utils.py b/ddtrace/contrib/celery/utils.py new file mode 100644 index 0000000000..71fda21d3e --- /dev/null +++ b/ddtrace/contrib/celery/utils.py @@ -0,0 +1,106 @@ +from weakref import WeakValueDictionary + +from .constants import CTX_KEY + + +def tags_from_context(context): + """Helper to extract meta values from a Celery Context""" + tag_keys = ( + 'compression', 'correlation_id', 'countdown', 'delivery_info', 'eta', + 'exchange', 'expires', 'hostname', 'id', 'priority', 'queue', 'reply_to', + 'retries', 'routing_key', 'serializer', 'timelimit', 'origin', 'state', + ) + + tags = {} + for key in tag_keys: + value = context.get(key) + + # Skip this key if it is not set + if value is None or value == '': + continue + + # Skip `timelimit` if it is not set (it's default/unset value is a + # tuple or a list of `None` values + if key == 'timelimit' and value in [(None, None), [None, None]]: + continue + + # Skip `retries` if it's value is `0` + if key == 'retries' and value == 0: + continue + + # Celery 4.0 uses `origin` instead of `hostname`; this change preserves + # the same name for the tag despite Celery version + if key == 'origin': + key = 'hostname' + + # prefix the tag as 'celery' + tag_name = 'celery.{}'.format(key) + tags[tag_name] = value + return tags + + +def attach_span(task, task_id, span, is_publish=False): + """Helper to propagate a `Span` for the given `Task` instance. This + function uses a `WeakValueDictionary` that stores a Datadog Span using + the `(task_id, is_publish)` as a key. This is useful when information must be + propagated from one Celery signal to another. + + DEV: We use (task_id, is_publish) for the key to ensure that publishing a + task from within another task does not cause any conflicts. + + This mostly happens when either a task fails and a retry policy is in place, + or when a task is manually retries (e.g. `task.retry()`), we end up trying + to publish a task with the same id as the task currently running. + + Previously publishing the new task would overwrite the existing `celery.run` span + in the `weak_dict` causing that span to be forgotten and never finished. + + NOTE: We cannot test for this well yet, because we do not run a celery worker, + and cannot run `task.apply_async()` + """ + weak_dict = getattr(task, CTX_KEY, None) + if weak_dict is None: + weak_dict = WeakValueDictionary() + setattr(task, CTX_KEY, weak_dict) + + weak_dict[(task_id, is_publish)] = span + + +def detach_span(task, task_id, is_publish=False): + """Helper to remove a `Span` in a Celery task when it's propagated. + This function handles tasks where the `Span` is not attached. + """ + weak_dict = getattr(task, CTX_KEY, None) + if weak_dict is None: + return + + # DEV: See note in `attach_span` for key info + weak_dict.pop((task_id, is_publish), None) + + +def retrieve_span(task, task_id, is_publish=False): + """Helper to retrieve an active `Span` stored in a `Task` + instance + """ + weak_dict = getattr(task, CTX_KEY, None) + if weak_dict is None: + return + else: + # DEV: See note in `attach_span` for key info + return weak_dict.get((task_id, is_publish)) + + +def retrieve_task_id(context): + """Helper to retrieve the `Task` identifier from the message `body`. + This helper supports Protocol Version 1 and 2. The Protocol is well + detailed in the official documentation: + http://docs.celeryproject.org/en/latest/internals/protocol.html + """ + headers = context.get('headers') + body = context.get('body') + if headers: + # Protocol Version 2 (default from Celery 4.0) + return headers.get('id') + else: + # Protocol Version 1 + return body.get('id') diff --git a/ddtrace/contrib/consul/__init__.py b/ddtrace/contrib/consul/__init__.py new file mode 100644 index 0000000000..a90eaf3879 --- /dev/null +++ b/ddtrace/contrib/consul/__init__.py @@ -0,0 +1,29 @@ +"""Instrument Consul to trace KV queries. + +Only supports tracing for the syncronous client. + +``patch_all`` will automatically patch your Consul client to make it work. +:: + + from ddtrace import Pin, patch + import consul + + # If not patched yet, you can patch consul specifically + patch(consul=True) + + # This will report a span with the default settings + client = consul.Consul(host="127.0.0.1", port=8500) + client.get("my-key") + + # Use a pin to specify metadata related to this client + Pin.override(client, service='consul-kv') +""" + +from ...utils.importlib import require_modules + +required_modules = ['consul'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .patch import patch, unpatch + __all__ = ['patch', 'unpatch'] diff --git a/ddtrace/contrib/consul/patch.py b/ddtrace/contrib/consul/patch.py new file mode 100644 index 0000000000..aec3390aeb --- /dev/null +++ b/ddtrace/contrib/consul/patch.py @@ -0,0 +1,57 @@ +import consul + +from ddtrace.vendor.wrapt import wrap_function_wrapper as _w + +from ddtrace import config +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from ...ext import consul as consulx +from ...pin import Pin +from ...utils.wrappers import unwrap as _u + + +_KV_FUNCS = ['put', 'get', 'delete'] + + +def patch(): + if getattr(consul, '__datadog_patch', False): + return + setattr(consul, '__datadog_patch', True) + + pin = Pin(service=consulx.SERVICE, app=consulx.APP) + pin.onto(consul.Consul.KV) + + for f_name in _KV_FUNCS: + _w('consul', 'Consul.KV.%s' % f_name, wrap_function(f_name)) + + +def unpatch(): + if not getattr(consul, '__datadog_patch', False): + return + setattr(consul, '__datadog_patch', False) + + for f_name in _KV_FUNCS: + _u(consul.Consul.KV, f_name) + + +def wrap_function(name): + def trace_func(wrapped, instance, args, kwargs): + pin = Pin.get_from(instance) + if not pin or not pin.enabled(): + return wrapped(*args, **kwargs) + + # Only patch the syncronous implementation + if not isinstance(instance.agent.http, consul.std.HTTPClient): + return wrapped(*args, **kwargs) + + path = kwargs.get('key') or args[0] + resource = name.upper() + + with pin.tracer.trace(consulx.CMD, service=pin.service, resource=resource) as span: + rate = config.consul.get_analytics_sample_rate() + if rate is not None: + span.set_tag(ANALYTICS_SAMPLE_RATE_KEY, rate) + span.set_tag(consulx.KEY, path) + span.set_tag(consulx.CMD, resource) + return wrapped(*args, **kwargs) + + return trace_func diff --git a/ddtrace/contrib/dbapi/__init__.py b/ddtrace/contrib/dbapi/__init__.py new file mode 100644 index 0000000000..01b34dab08 --- /dev/null +++ b/ddtrace/contrib/dbapi/__init__.py @@ -0,0 +1,204 @@ +""" +Generic dbapi tracing code. +""" + +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from ...ext import SpanTypes, sql +from ...internal.logger import get_logger +from ...pin import Pin +from ...settings import config +from ...utils.formats import asbool, get_env +from ...vendor import wrapt + + +log = get_logger(__name__) + +config._add('dbapi2', dict( + trace_fetch_methods=asbool(get_env('dbapi2', 'trace_fetch_methods', 'false')), +)) + + +class TracedCursor(wrapt.ObjectProxy): + """ TracedCursor wraps a psql cursor and traces it's queries. """ + + def __init__(self, cursor, pin): + super(TracedCursor, self).__init__(cursor) + pin.onto(self) + name = pin.app or 'sql' + self._self_datadog_name = '{}.query'.format(name) + self._self_last_execute_operation = None + + def _trace_method(self, method, name, resource, extra_tags, *args, **kwargs): + """ + Internal function to trace the call to the underlying cursor method + :param method: The callable to be wrapped + :param name: The name of the resulting span. + :param resource: The sql query. Sql queries are obfuscated on the agent side. + :param extra_tags: A dict of tags to store into the span's meta + :param args: The args that will be passed as positional args to the wrapped method + :param kwargs: The args that will be passed as kwargs to the wrapped method + :return: The result of the wrapped method invocation + """ + pin = Pin.get_from(self) + if not pin or not pin.enabled(): + return method(*args, **kwargs) + service = pin.service + with pin.tracer.trace(name, service=service, resource=resource, span_type=SpanTypes.SQL) as s: + # No reason to tag the query since it is set as the resource by the agent. See: + # https://github.com/DataDog/datadog-trace-agent/blob/bda1ebbf170dd8c5879be993bdd4dbae70d10fda/obfuscate/sql.go#L232 + s.set_tags(pin.tags) + s.set_tags(extra_tags) + + # set analytics sample rate if enabled but only for non-FetchTracedCursor + if not isinstance(self, FetchTracedCursor): + s.set_tag( + ANALYTICS_SAMPLE_RATE_KEY, + config.dbapi2.get_analytics_sample_rate() + ) + + try: + return method(*args, **kwargs) + finally: + row_count = self.__wrapped__.rowcount + s.set_metric('db.rowcount', row_count) + # Necessary for django integration backward compatibility. Django integration used to provide its own + # implementation of the TracedCursor, which used to store the row count into a tag instead of + # as a metric. Such custom implementation has been replaced by this generic dbapi implementation and + # this tag has been added since. + if row_count and row_count >= 0: + s.set_tag(sql.ROWS, row_count) + + def executemany(self, query, *args, **kwargs): + """ Wraps the cursor.executemany method""" + self._self_last_execute_operation = query + # Always return the result as-is + # DEV: Some libraries return `None`, others `int`, and others the cursor objects + # These differences should be overriden at the integration specific layer (e.g. in `sqlite3/patch.py`) + # FIXME[matt] properly handle kwargs here. arg names can be different + # with different libs. + return self._trace_method( + self.__wrapped__.executemany, self._self_datadog_name, query, {'sql.executemany': 'true'}, + query, *args, **kwargs) + + def execute(self, query, *args, **kwargs): + """ Wraps the cursor.execute method""" + self._self_last_execute_operation = query + + # Always return the result as-is + # DEV: Some libraries return `None`, others `int`, and others the cursor objects + # These differences should be overriden at the integration specific layer (e.g. in `sqlite3/patch.py`) + return self._trace_method(self.__wrapped__.execute, self._self_datadog_name, query, {}, query, *args, **kwargs) + + def callproc(self, proc, args): + """ Wraps the cursor.callproc method""" + self._self_last_execute_operation = proc + return self._trace_method(self.__wrapped__.callproc, self._self_datadog_name, proc, {}, proc, args) + + def __enter__(self): + # previous versions of the dbapi didn't support context managers. let's + # reference the func that would be called to ensure that errors + # messages will be the same. + self.__wrapped__.__enter__ + + # and finally, yield the traced cursor. + return self + + +class FetchTracedCursor(TracedCursor): + """ + Sub-class of :class:`TracedCursor` that also instruments `fetchone`, `fetchall`, and `fetchmany` methods. + + We do not trace these functions by default since they can get very noisy (e.g. `fetchone` with 100k rows). + """ + def fetchone(self, *args, **kwargs): + """ Wraps the cursor.fetchone method""" + span_name = '{}.{}'.format(self._self_datadog_name, 'fetchone') + return self._trace_method(self.__wrapped__.fetchone, span_name, self._self_last_execute_operation, {}, + *args, **kwargs) + + def fetchall(self, *args, **kwargs): + """ Wraps the cursor.fetchall method""" + span_name = '{}.{}'.format(self._self_datadog_name, 'fetchall') + return self._trace_method(self.__wrapped__.fetchall, span_name, self._self_last_execute_operation, {}, + *args, **kwargs) + + def fetchmany(self, *args, **kwargs): + """ Wraps the cursor.fetchmany method""" + span_name = '{}.{}'.format(self._self_datadog_name, 'fetchmany') + # We want to trace the information about how many rows were requested. Note that this number may be larger + # the number of rows actually returned if less then requested are available from the query. + size_tag_key = 'db.fetch.size' + if 'size' in kwargs: + extra_tags = {size_tag_key: kwargs.get('size')} + elif len(args) == 1 and isinstance(args[0], int): + extra_tags = {size_tag_key: args[0]} + else: + default_array_size = getattr(self.__wrapped__, 'arraysize', None) + extra_tags = {size_tag_key: default_array_size} if default_array_size else {} + + return self._trace_method(self.__wrapped__.fetchmany, span_name, self._self_last_execute_operation, extra_tags, + *args, **kwargs) + + +class TracedConnection(wrapt.ObjectProxy): + """ TracedConnection wraps a Connection with tracing code. """ + + def __init__(self, conn, pin=None, cursor_cls=None): + # Set default cursor class if one was not provided + if not cursor_cls: + # Do not trace `fetch*` methods by default + cursor_cls = TracedCursor + if config.dbapi2.trace_fetch_methods: + cursor_cls = FetchTracedCursor + + super(TracedConnection, self).__init__(conn) + name = _get_vendor(conn) + self._self_datadog_name = '{}.connection'.format(name) + db_pin = pin or Pin(service=name, app=name) + db_pin.onto(self) + # wrapt requires prefix of `_self` for attributes that are only in the + # proxy (since some of our source objects will use `__slots__`) + self._self_cursor_cls = cursor_cls + + def _trace_method(self, method, name, extra_tags, *args, **kwargs): + pin = Pin.get_from(self) + if not pin or not pin.enabled(): + return method(*args, **kwargs) + service = pin.service + + with pin.tracer.trace(name, service=service) as s: + s.set_tags(pin.tags) + s.set_tags(extra_tags) + + return method(*args, **kwargs) + + def cursor(self, *args, **kwargs): + cursor = self.__wrapped__.cursor(*args, **kwargs) + pin = Pin.get_from(self) + if not pin: + return cursor + return self._self_cursor_cls(cursor, pin) + + def commit(self, *args, **kwargs): + span_name = '{}.{}'.format(self._self_datadog_name, 'commit') + return self._trace_method(self.__wrapped__.commit, span_name, {}, *args, **kwargs) + + def rollback(self, *args, **kwargs): + span_name = '{}.{}'.format(self._self_datadog_name, 'rollback') + return self._trace_method(self.__wrapped__.rollback, span_name, {}, *args, **kwargs) + + +def _get_vendor(conn): + """ Return the vendor (e.g postgres, mysql) of the given + database. + """ + try: + name = _get_module_name(conn) + except Exception: + log.debug('couldnt parse module name', exc_info=True) + name = 'sql' + return sql.normalize_vendor(name) + + +def _get_module_name(conn): + return conn.__class__.__module__.split('.')[0] diff --git a/ddtrace/contrib/django/__init__.py b/ddtrace/contrib/django/__init__.py new file mode 100644 index 0000000000..f3405dd4f2 --- /dev/null +++ b/ddtrace/contrib/django/__init__.py @@ -0,0 +1,101 @@ +""" +The Django integration will trace users requests, template renderers, database and cache +calls. + +**Note:** by default the tracer is **disabled** (will not send spans) when +the Django setting ``DEBUG`` is ``True``. This can be overridden by explicitly enabling +the tracer with ``DATADOG_TRACE['ENABLED'] = True``, as described below. + +To enable the Django integration, add the application to your installed +apps, as follows:: + + INSTALLED_APPS = [ + # your Django apps... + + # the order is not important + 'ddtrace.contrib.django', + ] + +The configuration for this integration is namespaced under the ``DATADOG_TRACE`` +Django setting. For example, your ``settings.py`` may contain:: + + DATADOG_TRACE = { + 'DEFAULT_SERVICE': 'my-django-app', + 'TAGS': {'env': 'production'}, + } + +If you need to access to Datadog settings, you can:: + + from ddtrace.contrib.django.conf import settings + + tracer = settings.TRACER + tracer.trace("something") + # your code ... + +To have Django capture the tracer logs, ensure the ``LOGGING`` variable in +``settings.py`` looks similar to:: + + LOGGING = { + 'loggers': { + 'ddtrace': { + 'handlers': ['console'], + 'level': 'WARNING', + }, + }, + } + + +The available settings are: + +* ``DEFAULT_SERVICE`` (default: ``'django'``): set the service name used by the + tracer. Usually this configuration must be updated with a meaningful name. +* ``DEFAULT_DATABASE_PREFIX`` (default: ``''``): set a prefix value to database services, + so that your service is listed such as `prefix-defaultdb`. +* ``DEFAULT_CACHE_SERVICE`` (default: ``''``): set the django cache service name used + by the tracer. Change this name if you want to see django cache spans as a cache application. +* ``TAGS`` (default: ``{}``): set global tags that should be applied to all + spans. +* ``TRACER`` (default: ``ddtrace.tracer``): set the default tracer + instance that is used to trace Django internals. By default the ``ddtrace`` + tracer is used. +* ``ENABLED`` (default: ``not django_settings.DEBUG``): defines if the tracer is + enabled or not. If set to false, the code is still instrumented but no spans + are sent to the trace agent. This setting cannot be changed at runtime + and a restart is required. By default the tracer is disabled when in ``DEBUG`` + mode, enabled otherwise. +* ``DISTRIBUTED_TRACING`` (default: ``True``): defines if the tracer should + use incoming X-DATADOG-* HTTP headers to extend a trace created remotely. It is + required for distributed tracing if this application is called remotely from another + instrumented application. + We suggest to enable it only for internal services where headers are under your control. +* ``ANALYTICS_ENABLED`` (default: ``None``): enables APM events in Trace Search & Analytics. +* ``AGENT_HOSTNAME`` (default: ``localhost``): define the hostname of the trace agent. +* ``AGENT_PORT`` (default: ``8126``): define the port of the trace agent. +* ``AUTO_INSTRUMENT`` (default: ``True``): if set to false the code will not be + instrumented (even if ``INSTRUMENT_DATABASE``, ``INSTRUMENT_CACHE`` or + ``INSTRUMENT_TEMPLATE`` are set to ``True``), while the tracer may be active + for your internal usage. This could be useful if you want to use the Django + integration, but you want to trace only particular functions or views. If set + to False, the request middleware will be disabled even if present. +* ``INSTRUMENT_DATABASE`` (default: ``True``): if set to ``False`` database will not + be instrumented. Only configurable when ``AUTO_INSTRUMENT`` is set to ``True``. +* ``INSTRUMENT_CACHE`` (default: ``True``): if set to ``False`` cache will not + be instrumented. Only configurable when ``AUTO_INSTRUMENT`` is set to ``True``. +* ``INSTRUMENT_TEMPLATE`` (default: ``True``): if set to ``False`` template + rendering will not be instrumented. Only configurable when ``AUTO_INSTRUMENT`` + is set to ``True``. +""" +from ...utils.importlib import require_modules + + +required_modules = ['django'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .middleware import TraceMiddleware, TraceExceptionMiddleware + from .patch import patch + __all__ = ['TraceMiddleware', 'TraceExceptionMiddleware', 'patch'] + + +# define the Django app configuration +default_app_config = 'ddtrace.contrib.django.apps.TracerConfig' diff --git a/ddtrace/contrib/django/apps.py b/ddtrace/contrib/django/apps.py new file mode 100644 index 0000000000..7cec2eeded --- /dev/null +++ b/ddtrace/contrib/django/apps.py @@ -0,0 +1,19 @@ +# 3rd party +from django.apps import AppConfig, apps + +# project +from .patch import apply_django_patches + + +class TracerConfig(AppConfig): + name = 'ddtrace.contrib.django' + label = 'datadog_django' + + def ready(self): + """ + Ready is called as soon as the registry is fully populated. + Tracing capabilities must be enabled in this function so that + all Django internals are properly configured. + """ + rest_framework_is_installed = apps.is_installed('rest_framework') + apply_django_patches(patch_rest_framework=rest_framework_is_installed) diff --git a/ddtrace/contrib/django/cache.py b/ddtrace/contrib/django/cache.py new file mode 100644 index 0000000000..3113a58b31 --- /dev/null +++ b/ddtrace/contrib/django/cache.py @@ -0,0 +1,111 @@ +from functools import wraps + +from django.conf import settings as django_settings + +from ...ext import SpanTypes +from ...internal.logger import get_logger +from .conf import settings, import_from_string +from .utils import quantize_key_values, _resource_from_cache_prefix + + +log = get_logger(__name__) + +# code instrumentation +DATADOG_NAMESPACE = '__datadog_original_{method}' +TRACED_METHODS = [ + 'get', + 'set', + 'add', + 'delete', + 'incr', + 'decr', + 'get_many', + 'set_many', + 'delete_many', +] + +# standard tags +CACHE_BACKEND = 'django.cache.backend' +CACHE_COMMAND_KEY = 'django.cache.key' + + +def patch_cache(tracer): + """ + Function that patches the inner cache system. Because the cache backend + can have different implementations and connectors, this function must + handle all possible interactions with the Django cache. What follows + is currently traced: + + * in-memory cache + * the cache client wrapper that could use any of the common + Django supported cache servers (Redis, Memcached, Database, Custom) + """ + # discover used cache backends + cache_backends = set([cache['BACKEND'] for cache in django_settings.CACHES.values()]) + + def _trace_operation(fn, method_name): + """ + Return a wrapped function that traces a cache operation + """ + cache_service_name = settings.DEFAULT_CACHE_SERVICE \ + if settings.DEFAULT_CACHE_SERVICE else settings.DEFAULT_SERVICE + + @wraps(fn) + def wrapped(self, *args, **kwargs): + # get the original function method + method = getattr(self, DATADOG_NAMESPACE.format(method=method_name)) + with tracer.trace('django.cache', span_type=SpanTypes.CACHE, service=cache_service_name) as span: + # update the resource name and tag the cache backend + span.resource = _resource_from_cache_prefix(method_name, self) + cache_backend = '{}.{}'.format(self.__module__, self.__class__.__name__) + span.set_tag(CACHE_BACKEND, cache_backend) + + if args: + keys = quantize_key_values(args[0]) + span.set_tag(CACHE_COMMAND_KEY, keys) + + return method(*args, **kwargs) + return wrapped + + def _wrap_method(cls, method_name): + """ + For the given class, wraps the method name with a traced operation + so that the original method is executed, while the span is properly + created + """ + # check if the backend owns the given bounded method + if not hasattr(cls, method_name): + return + + # prevent patching each backend's method more than once + if hasattr(cls, DATADOG_NAMESPACE.format(method=method_name)): + log.debug('%s already traced', method_name) + else: + method = getattr(cls, method_name) + setattr(cls, DATADOG_NAMESPACE.format(method=method_name), method) + setattr(cls, method_name, _trace_operation(method, method_name)) + + # trace all backends + for cache_module in cache_backends: + cache = import_from_string(cache_module, cache_module) + + for method in TRACED_METHODS: + _wrap_method(cache, method) + + +def unpatch_method(cls, method_name): + method = getattr(cls, DATADOG_NAMESPACE.format(method=method_name), None) + if method is None: + log.debug('nothing to do, the class is not patched') + return + setattr(cls, method_name, method) + delattr(cls, DATADOG_NAMESPACE.format(method=method_name)) + + +def unpatch_cache(): + cache_backends = set([cache['BACKEND'] for cache in django_settings.CACHES.values()]) + for cache_module in cache_backends: + cache = import_from_string(cache_module, cache_module) + + for method in TRACED_METHODS: + unpatch_method(cache, method) diff --git a/ddtrace/contrib/django/compat.py b/ddtrace/contrib/django/compat.py new file mode 100644 index 0000000000..f686b7f117 --- /dev/null +++ b/ddtrace/contrib/django/compat.py @@ -0,0 +1,27 @@ +import django + + +if django.VERSION >= (1, 10, 1): + from django.urls import get_resolver + + def user_is_authenticated(user): + # Explicit comparison due to the following bug + # https://code.djangoproject.com/ticket/26988 + return user.is_authenticated == True # noqa E712 +else: + from django.conf import settings + from django.core import urlresolvers + + def user_is_authenticated(user): + return user.is_authenticated() + + if django.VERSION >= (1, 9, 0): + def get_resolver(urlconf=None): + urlconf = urlconf or settings.ROOT_URLCONF + urlresolvers.set_urlconf(urlconf) + return urlresolvers.get_resolver(urlconf) + else: + def get_resolver(urlconf=None): + urlconf = urlconf or settings.ROOT_URLCONF + urlresolvers.set_urlconf(urlconf) + return urlresolvers.RegexURLResolver(r'^/', urlconf) diff --git a/ddtrace/contrib/django/conf.py b/ddtrace/contrib/django/conf.py new file mode 100644 index 0000000000..31dda24534 --- /dev/null +++ b/ddtrace/contrib/django/conf.py @@ -0,0 +1,163 @@ +""" +Settings for Datadog tracer are all namespaced in the DATADOG_TRACE setting. +For example your project's `settings.py` file might look like this:: + + DATADOG_TRACE = { + 'TRACER': 'myapp.tracer', + } + +This module provides the `setting` object, that is used to access +Datadog settings, checking for user settings first, then falling +back to the defaults. +""" +from __future__ import unicode_literals + +import os +import importlib + +from django.conf import settings as django_settings + +from ...internal.logger import get_logger + + +log = get_logger(__name__) + +# List of available settings with their defaults +DEFAULTS = { + 'AGENT_HOSTNAME': 'localhost', + 'AGENT_PORT': 8126, + 'AUTO_INSTRUMENT': True, + 'INSTRUMENT_CACHE': True, + 'INSTRUMENT_DATABASE': True, + 'INSTRUMENT_TEMPLATE': True, + 'DEFAULT_DATABASE_PREFIX': '', + 'DEFAULT_SERVICE': 'django', + 'DEFAULT_CACHE_SERVICE': '', + 'ENABLED': True, + 'DISTRIBUTED_TRACING': True, + 'ANALYTICS_ENABLED': None, + 'ANALYTICS_SAMPLE_RATE': True, + 'TRACE_QUERY_STRING': None, + 'TAGS': {}, + 'TRACER': 'ddtrace.tracer', +} + +# List of settings that may be in string import notation. +IMPORT_STRINGS = ( + 'TRACER', +) + +# List of settings that have been removed +REMOVED_SETTINGS = () + + +def import_from_string(val, setting_name): + """ + Attempt to import a class from a string representation. + """ + try: + # Nod to tastypie's use of importlib. + parts = val.split('.') + module_path, class_name = '.'.join(parts[:-1]), parts[-1] + module = importlib.import_module(module_path) + return getattr(module, class_name) + except (ImportError, AttributeError) as e: + msg = 'Could not import "{}" for setting "{}". {}: {}.'.format( + val, + setting_name, + e.__class__.__name__, + e, + ) + + raise ImportError(msg) + + +class DatadogSettings(object): + """ + A settings object, that allows Datadog settings to be accessed as properties. + For example: + + from ddtrace.contrib.django.conf import settings + + tracer = settings.TRACER + + Any setting with string import paths will be automatically resolved + and return the class, rather than the string literal. + """ + def __init__(self, user_settings=None, defaults=None, import_strings=None): + if user_settings: + self._user_settings = self.__check_user_settings(user_settings) + + self.defaults = defaults or DEFAULTS + if os.environ.get('DATADOG_ENV'): + self.defaults['TAGS'].update({'env': os.environ.get('DATADOG_ENV')}) + if os.environ.get('DATADOG_SERVICE_NAME'): + self.defaults['DEFAULT_SERVICE'] = os.environ.get('DATADOG_SERVICE_NAME') + + host = os.environ.get('DD_AGENT_HOST', os.environ.get('DATADOG_TRACE_AGENT_HOSTNAME')) + if host: + self.defaults['AGENT_HOSTNAME'] = host + + port = os.environ.get('DD_TRACE_AGENT_PORT', os.environ.get('DATADOG_TRACE_AGENT_PORT')) + if port: + # if the agent port is a string, the underlying library that creates the socket + # stops working + try: + port = int(port) + except ValueError: + log.warning('DD_TRACE_AGENT_PORT is not an integer value; default to 8126') + else: + self.defaults['AGENT_PORT'] = port + + self.import_strings = import_strings or IMPORT_STRINGS + + @property + def user_settings(self): + if not hasattr(self, '_user_settings'): + self._user_settings = getattr(django_settings, 'DATADOG_TRACE', {}) + + # TODO[manu]: prevents docs import errors; provide a better implementation + if 'ENABLED' not in self._user_settings: + self._user_settings['ENABLED'] = not django_settings.DEBUG + return self._user_settings + + def __getattr__(self, attr): + if attr not in self.defaults: + raise AttributeError('Invalid setting: "{}"'.format(attr)) + + try: + # Check if present in user settings + val = self.user_settings[attr] + except KeyError: + # Otherwise, fall back to defaults + val = self.defaults[attr] + + # Coerce import strings into classes + if attr in self.import_strings: + val = import_from_string(val, attr) + + # Cache the result + setattr(self, attr, val) + return val + + def __check_user_settings(self, user_settings): + SETTINGS_DOC = 'http://pypi.datadoghq.com/trace/docs/#module-ddtrace.contrib.django' + for setting in REMOVED_SETTINGS: + if setting in user_settings: + raise RuntimeError( + 'The "{}" setting has been removed, check "{}".'.format(setting, SETTINGS_DOC) + ) + return user_settings + + +settings = DatadogSettings(None, DEFAULTS, IMPORT_STRINGS) + + +def reload_settings(*args, **kwargs): + """ + Triggers a reload when Django emits the reloading signal + """ + global settings + setting, value = kwargs['setting'], kwargs['value'] + if setting == 'DATADOG_TRACE': + settings = DatadogSettings(value, DEFAULTS, IMPORT_STRINGS) diff --git a/ddtrace/contrib/django/db.py b/ddtrace/contrib/django/db.py new file mode 100644 index 0000000000..f5b6c804e1 --- /dev/null +++ b/ddtrace/contrib/django/db.py @@ -0,0 +1,76 @@ +from django.db import connections + +# project +from ...ext import sql as sqlx +from ...internal.logger import get_logger +from ...pin import Pin + +from .conf import settings +from ..dbapi import TracedCursor as DbApiTracedCursor + +log = get_logger(__name__) + +CURSOR_ATTR = '_datadog_original_cursor' +ALL_CONNS_ATTR = '_datadog_original_connections_all' + + +def patch_db(tracer): + if hasattr(connections, ALL_CONNS_ATTR): + log.debug('db already patched') + return + setattr(connections, ALL_CONNS_ATTR, connections.all) + + def all_connections(self): + conns = getattr(self, ALL_CONNS_ATTR)() + for conn in conns: + patch_conn(tracer, conn) + return conns + + connections.all = all_connections.__get__(connections, type(connections)) + + +def unpatch_db(): + for c in connections.all(): + unpatch_conn(c) + + all_connections = getattr(connections, ALL_CONNS_ATTR, None) + if all_connections is None: + log.debug('nothing to do, the db is not patched') + return + connections.all = all_connections + delattr(connections, ALL_CONNS_ATTR) + + +def patch_conn(tracer, conn): + if hasattr(conn, CURSOR_ATTR): + return + + setattr(conn, CURSOR_ATTR, conn.cursor) + + def cursor(): + database_prefix = ( + '{}-'.format(settings.DEFAULT_DATABASE_PREFIX) + if settings.DEFAULT_DATABASE_PREFIX else '' + ) + alias = getattr(conn, 'alias', 'default') + service = '{}{}{}'.format(database_prefix, alias, 'db') + vendor = getattr(conn, 'vendor', 'db') + prefix = sqlx.normalize_vendor(vendor) + tags = { + 'django.db.vendor': vendor, + 'django.db.alias': alias, + } + + pin = Pin(service, tags=tags, tracer=tracer, app=prefix) + return DbApiTracedCursor(conn._datadog_original_cursor(), pin) + + conn.cursor = cursor + + +def unpatch_conn(conn): + cursor = getattr(conn, CURSOR_ATTR, None) + if cursor is None: + log.debug('nothing to do, the connection is not patched') + return + conn.cursor = cursor + delattr(conn, CURSOR_ATTR) diff --git a/ddtrace/contrib/django/middleware.py b/ddtrace/contrib/django/middleware.py new file mode 100644 index 0000000000..8a0539a75b --- /dev/null +++ b/ddtrace/contrib/django/middleware.py @@ -0,0 +1,230 @@ +# project +from .conf import settings +from .compat import user_is_authenticated, get_resolver +from .utils import get_request_uri + +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from ...contrib import func_name +from ...ext import SpanTypes, http +from ...internal.logger import get_logger +from ...propagation.http import HTTPPropagator +from ...settings import config + +# 3p +from django.core.exceptions import MiddlewareNotUsed +from django.conf import settings as django_settings +import django + +try: + from django.utils.deprecation import MiddlewareMixin + + MiddlewareClass = MiddlewareMixin +except ImportError: + MiddlewareClass = object + +log = get_logger(__name__) + +EXCEPTION_MIDDLEWARE = "ddtrace.contrib.django.TraceExceptionMiddleware" +TRACE_MIDDLEWARE = "ddtrace.contrib.django.TraceMiddleware" +MIDDLEWARE = "MIDDLEWARE" +MIDDLEWARE_CLASSES = "MIDDLEWARE_CLASSES" + +# Default views list available from: +# https://github.com/django/django/blob/38e2fdadfd9952e751deed662edf4c496d238f28/django/views/defaults.py +# DEV: Django doesn't call `process_view` when falling back to one of these internal error handling views +# DEV: We only use these names when `span.resource == 'unknown'` and we have one of these status codes +_django_default_views = { + 400: "django.views.defaults.bad_request", + 403: "django.views.defaults.permission_denied", + 404: "django.views.defaults.page_not_found", + 500: "django.views.defaults.server_error", +} + + +def _analytics_enabled(): + return ( + (config.analytics_enabled and settings.ANALYTICS_ENABLED is not False) or settings.ANALYTICS_ENABLED is True + ) and settings.ANALYTICS_SAMPLE_RATE is not None + + +def get_middleware_insertion_point(): + """Returns the attribute name and collection object for the Django middleware. + + If middleware cannot be found, returns None for the middleware collection. + """ + middleware = getattr(django_settings, MIDDLEWARE, None) + # Prioritise MIDDLEWARE over ..._CLASSES, but only in 1.10 and later. + if middleware is not None and django.VERSION >= (1, 10): + return MIDDLEWARE, middleware + return MIDDLEWARE_CLASSES, getattr(django_settings, MIDDLEWARE_CLASSES, None) + + +def insert_trace_middleware(): + middleware_attribute, middleware = get_middleware_insertion_point() + if middleware is not None and TRACE_MIDDLEWARE not in set(middleware): + setattr(django_settings, middleware_attribute, type(middleware)((TRACE_MIDDLEWARE,)) + middleware) + + +def remove_trace_middleware(): + _, middleware = get_middleware_insertion_point() + if middleware and TRACE_MIDDLEWARE in set(middleware): + middleware.remove(TRACE_MIDDLEWARE) + + +def insert_exception_middleware(): + middleware_attribute, middleware = get_middleware_insertion_point() + if middleware is not None and EXCEPTION_MIDDLEWARE not in set(middleware): + setattr(django_settings, middleware_attribute, middleware + type(middleware)((EXCEPTION_MIDDLEWARE,))) + + +def remove_exception_middleware(): + _, middleware = get_middleware_insertion_point() + if middleware and EXCEPTION_MIDDLEWARE in set(middleware): + middleware.remove(EXCEPTION_MIDDLEWARE) + + +class InstrumentationMixin(MiddlewareClass): + """ + Useful mixin base class for tracing middlewares + """ + + def __init__(self, get_response=None): + # disable the middleware if the tracer is not enabled + # or if the auto instrumentation is disabled + self.get_response = get_response + if not settings.AUTO_INSTRUMENT: + raise MiddlewareNotUsed + + +class TraceExceptionMiddleware(InstrumentationMixin): + """ + Middleware that traces exceptions raised + """ + + def process_exception(self, request, exception): + try: + span = _get_req_span(request) + if span: + span.set_tag(http.STATUS_CODE, "500") + span.set_traceback() # will set the exception info + except Exception: + log.debug("error processing exception", exc_info=True) + + +class TraceMiddleware(InstrumentationMixin): + """ + Middleware that traces Django requests + """ + + def process_request(self, request): + tracer = settings.TRACER + if settings.DISTRIBUTED_TRACING: + propagator = HTTPPropagator() + context = propagator.extract(request.META) + # Only need to active the new context if something was propagated + if context.trace_id: + tracer.context_provider.activate(context) + try: + span = tracer.trace( + "django.request", + service=settings.DEFAULT_SERVICE, + resource="unknown", # will be filled by process view + span_type=SpanTypes.WEB, + ) + + # set analytics sample rate + # DEV: django is special case maintains separate configuration from config api + if _analytics_enabled() and settings.ANALYTICS_SAMPLE_RATE is not None: + span.set_tag( + ANALYTICS_SAMPLE_RATE_KEY, settings.ANALYTICS_SAMPLE_RATE, + ) + + # Set HTTP Request tags + span.set_tag(http.METHOD, request.method) + span.set_tag(http.URL, get_request_uri(request)) + trace_query_string = settings.TRACE_QUERY_STRING + if trace_query_string is None: + trace_query_string = config.django.trace_query_string + if trace_query_string: + span.set_tag(http.QUERY_STRING, request.META["QUERY_STRING"]) + _set_req_span(request, span) + except Exception: + log.debug("error tracing request", exc_info=True) + + def process_view(self, request, view_func, *args, **kwargs): + span = _get_req_span(request) + if span: + span.resource = func_name(view_func) + + def process_response(self, request, response): + try: + span = _get_req_span(request) + if span: + if response.status_code < 500 and span.error: + # remove any existing stack trace since it must have been + # handled appropriately + span._remove_exc_info() + + # If `process_view` was not called, try to determine the correct `span.resource` to set + # DEV: `process_view` won't get called if a middle `process_request` returns an HttpResponse + # DEV: `process_view` won't get called when internal error handlers are used (e.g. for 404 responses) + if span.resource == "unknown": + try: + # Attempt to lookup the view function from the url resolver + # https://github.com/django/django/blob/38e2fdadfd9952e751deed662edf4c496d238f28/django/core/handlers/base.py#L104-L113 # noqa + urlconf = None + if hasattr(request, "urlconf"): + urlconf = request.urlconf + resolver = get_resolver(urlconf) + + # Try to resolve the Django view for handling this request + if getattr(request, "request_match", None): + request_match = request.request_match + else: + # This may raise a `django.urls.exceptions.Resolver404` exception + request_match = resolver.resolve(request.path_info) + span.resource = func_name(request_match.func) + except Exception: + log.debug("error determining request view function", exc_info=True) + + # If the view could not be found, try to set from a static list of + # known internal error handler views + span.resource = _django_default_views.get(response.status_code, "unknown") + + span.set_tag(http.STATUS_CODE, response.status_code) + span = _set_auth_tags(span, request) + span.finish() + except Exception: + log.debug("error tracing request", exc_info=True) + finally: + return response + + +def _get_req_span(request): + """ Return the datadog span from the given request. """ + return getattr(request, "_datadog_request_span", None) + + +def _set_req_span(request, span): + """ Set the datadog span on the given request. """ + return setattr(request, "_datadog_request_span", span) + + +def _set_auth_tags(span, request): + """ Patch any available auth tags from the request onto the span. """ + user = getattr(request, "user", None) + if not user: + return span + + if hasattr(user, "is_authenticated"): + span.set_tag("django.user.is_authenticated", user_is_authenticated(user)) + + uid = getattr(user, "pk", None) + if uid: + span.set_tag("django.user.id", uid) + + uname = getattr(user, "username", None) + if uname: + span.set_tag("django.user.name", uname) + + return span diff --git a/ddtrace/contrib/django/patch.py b/ddtrace/contrib/django/patch.py new file mode 100644 index 0000000000..9dd6a54d32 --- /dev/null +++ b/ddtrace/contrib/django/patch.py @@ -0,0 +1,94 @@ +# 3rd party +from ddtrace.vendor import wrapt +import django +from django.db import connections + +# project +from .db import patch_db +from .conf import settings +from .cache import patch_cache +from .templates import patch_template +from .middleware import insert_exception_middleware, insert_trace_middleware + +from ...internal.logger import get_logger + +log = get_logger(__name__) + + +def patch(): + """Patch the instrumented methods + """ + if getattr(django, '_datadog_patch', False): + return + setattr(django, '_datadog_patch', True) + + _w = wrapt.wrap_function_wrapper + _w('django', 'setup', traced_setup) + + +def traced_setup(wrapped, instance, args, kwargs): + from django.conf import settings + + if 'ddtrace.contrib.django' not in settings.INSTALLED_APPS: + if isinstance(settings.INSTALLED_APPS, tuple): + # INSTALLED_APPS is a tuple < 1.9 + settings.INSTALLED_APPS = settings.INSTALLED_APPS + ('ddtrace.contrib.django', ) + else: + settings.INSTALLED_APPS.append('ddtrace.contrib.django') + + wrapped(*args, **kwargs) + + +def apply_django_patches(patch_rest_framework): + """ + Ready is called as soon as the registry is fully populated. + In order for all Django internals are properly configured, this + must be called after the app is finished starting + """ + tracer = settings.TRACER + + if settings.TAGS: + tracer.set_tags(settings.TAGS) + + # configure the tracer instance + # TODO[manu]: we may use configure() but because it creates a new + # AgentWriter, it breaks all tests. The configure() behavior must + # be changed to use it in this integration + tracer.enabled = settings.ENABLED + tracer.writer.api.hostname = settings.AGENT_HOSTNAME + tracer.writer.api.port = settings.AGENT_PORT + + if settings.AUTO_INSTRUMENT: + # trace Django internals + insert_trace_middleware() + insert_exception_middleware() + + if settings.INSTRUMENT_TEMPLATE: + try: + patch_template(tracer) + except Exception: + log.exception('error patching Django template rendering') + + if settings.INSTRUMENT_DATABASE: + try: + patch_db(tracer) + # This is the trigger to patch individual connections. + # By patching these here, all processes including + # management commands are also traced. + connections.all() + except Exception: + log.exception('error patching Django database connections') + + if settings.INSTRUMENT_CACHE: + try: + patch_cache(tracer) + except Exception: + log.exception('error patching Django cache') + + # Instrument rest_framework app to trace custom exception handling. + if patch_rest_framework: + try: + from .restframework import patch_restframework + patch_restframework(tracer) + except Exception: + log.exception('error patching rest_framework app') diff --git a/ddtrace/contrib/django/restframework.py b/ddtrace/contrib/django/restframework.py new file mode 100644 index 0000000000..1970111e0d --- /dev/null +++ b/ddtrace/contrib/django/restframework.py @@ -0,0 +1,42 @@ +from ddtrace.vendor.wrapt import wrap_function_wrapper as wrap + +from rest_framework.views import APIView + +from ...utils.wrappers import unwrap + + +def patch_restframework(tracer): + """ Patches rest_framework app. + + To trace exceptions occuring during view processing we currently use a TraceExceptionMiddleware. + However the rest_framework handles exceptions before they come to our middleware. + So we need to manually patch the rest_framework exception handler + to set the exception stack trace in the current span. + + """ + + def _traced_handle_exception(wrapped, instance, args, kwargs): + """ Sets the error message, error type and exception stack trace to the current span + before calling the original exception handler. + """ + span = tracer.current_span() + if span is not None: + span.set_traceback() + + return wrapped(*args, **kwargs) + + # do not patch if already patched + if getattr(APIView, '_datadog_patch', False): + return + else: + setattr(APIView, '_datadog_patch', True) + + # trace the handle_exception method + wrap('rest_framework.views', 'APIView.handle_exception', _traced_handle_exception) + + +def unpatch_restframework(): + """ Unpatches rest_framework app.""" + if getattr(APIView, '_datadog_patch', False): + setattr(APIView, '_datadog_patch', False) + unwrap(APIView, 'handle_exception') diff --git a/ddtrace/contrib/django/templates.py b/ddtrace/contrib/django/templates.py new file mode 100644 index 0000000000..27752b362f --- /dev/null +++ b/ddtrace/contrib/django/templates.py @@ -0,0 +1,48 @@ +""" +code to measure django template rendering. +""" +# project +from ...ext import SpanTypes +from ...internal.logger import get_logger + +# 3p +from django.template import Template + +log = get_logger(__name__) + +RENDER_ATTR = '_datadog_original_render' + + +def patch_template(tracer): + """ will patch django's template rendering function to include timing + and trace information. + """ + + # FIXME[matt] we're patching the template class here. ideally we'd only + # patch so we can use multiple tracers at once, but i suspect this is fine + # in practice. + if getattr(Template, RENDER_ATTR, None): + log.debug('already patched') + return + + setattr(Template, RENDER_ATTR, Template.render) + + def traced_render(self, context): + with tracer.trace('django.template', span_type=SpanTypes.TEMPLATE) as span: + try: + return Template._datadog_original_render(self, context) + finally: + template_name = self.name or getattr(context, 'template_name', None) or 'unknown' + span.resource = template_name + span.set_tag('django.template_name', template_name) + + Template.render = traced_render + + +def unpatch_template(): + render = getattr(Template, RENDER_ATTR, None) + if render is None: + log.debug('nothing to do Template is already patched') + return + Template.render = render + delattr(Template, RENDER_ATTR) diff --git a/ddtrace/contrib/django/utils.py b/ddtrace/contrib/django/utils.py new file mode 100644 index 0000000000..3b4a1acee1 --- /dev/null +++ b/ddtrace/contrib/django/utils.py @@ -0,0 +1,75 @@ +from ...compat import parse +from ...internal.logger import get_logger + +log = get_logger(__name__) + + +def _resource_from_cache_prefix(resource, cache): + """ + Combine the resource name with the cache prefix (if any) + """ + if getattr(cache, 'key_prefix', None): + name = '{} {}'.format(resource, cache.key_prefix) + else: + name = resource + + # enforce lowercase to make the output nicer to read + return name.lower() + + +def quantize_key_values(key): + """ + Used in the Django trace operation method, it ensures that if a dict + with values is used, we removes the values from the span meta + attributes. For example:: + + >>> quantize_key_values({'key', 'value'}) + # returns ['key'] + """ + if isinstance(key, dict): + return key.keys() + + return key + + +def get_request_uri(request): + """ + Helper to rebuild the original request url + + query string or fragments are not included. + """ + # DEV: We do this instead of `request.build_absolute_uri()` since + # an exception can get raised, we want to always build a url + # regardless of any exceptions raised from `request.get_host()` + host = None + try: + host = request.get_host() # this will include host:port + except Exception: + log.debug('Failed to get Django request host', exc_info=True) + + if not host: + try: + # Try to build host how Django would have + # https://github.com/django/django/blob/e8d0d2a5efc8012dcc8bf1809dec065ebde64c81/django/http/request.py#L85-L102 + if 'HTTP_HOST' in request.META: + host = request.META['HTTP_HOST'] + else: + host = request.META['SERVER_NAME'] + port = str(request.META['SERVER_PORT']) + if port != ('443' if request.is_secure() else '80'): + host = '{0}:{1}'.format(host, port) + except Exception: + # This really shouldn't ever happen, but lets guard here just in case + log.debug('Failed to build Django request host', exc_info=True) + host = 'unknown' + + # Build request url from the information available + # DEV: We are explicitly omitting query strings since they may contain sensitive information + return parse.urlunparse(parse.ParseResult( + scheme=request.scheme, + netloc=host, + path=request.path, + params='', + query='', + fragment='', + )) diff --git a/ddtrace/contrib/dogpile_cache/__init__.py b/ddtrace/contrib/dogpile_cache/__init__.py new file mode 100644 index 0000000000..39eac76c67 --- /dev/null +++ b/ddtrace/contrib/dogpile_cache/__init__.py @@ -0,0 +1,48 @@ +""" +Instrument dogpile.cache__ to report all cached lookups. + +This will add spans around the calls to your cache backend (eg. redis, memory, +etc). The spans will also include the following tags: + +- key/keys: The key(s) dogpile passed to your backend. Note that this will be + the output of the region's ``function_key_generator``, but before any key + mangling is applied (ie. the region's ``key_mangler``). +- region: Name of the region. +- backend: Name of the backend class. +- hit: If the key was found in the cache. +- expired: If the key is expired. This is only relevant if the key was found. + +While cache tracing will generally already have keys in tags, some caching +setups will not have useful tag values - such as when you're using consistent +hashing with memcached - the key(s) will appear as a mangled hash. +:: + + # Patch before importing dogpile.cache + from ddtrace import patch + patch(dogpile_cache=True) + + from dogpile.cache import make_region + + region = make_region().configure( + "dogpile.cache.pylibmc", + expiration_time=3600, + arguments={"url": ["127.0.0.1"]}, + ) + + @region.cache_on_arguments() + def hello(name): + # Some complicated, slow calculation + return "Hello, {}".format(name) + +.. __: https://dogpilecache.sqlalchemy.org/ +""" +from ...utils.importlib import require_modules + + +required_modules = ['dogpile.cache'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .patch import patch, unpatch + + __all__ = ['patch', 'unpatch'] diff --git a/ddtrace/contrib/dogpile_cache/lock.py b/ddtrace/contrib/dogpile_cache/lock.py new file mode 100644 index 0000000000..e73124655b --- /dev/null +++ b/ddtrace/contrib/dogpile_cache/lock.py @@ -0,0 +1,37 @@ +import dogpile + +from ...pin import Pin +from ...utils.formats import asbool + + +def _wrap_lock_ctor(func, instance, args, kwargs): + """ + This seems rather odd. But to track hits, we need to patch the wrapped function that + dogpile passes to the region and locks. Unfortunately it's a closure defined inside + the get_or_create* methods themselves, so we can't easily patch those. + """ + func(*args, **kwargs) + ori_backend_fetcher = instance.value_and_created_fn + + def wrapped_backend_fetcher(): + pin = Pin.get_from(dogpile.cache) + if not pin or not pin.enabled(): + return ori_backend_fetcher() + + hit = False + expired = True + try: + value, createdtime = ori_backend_fetcher() + hit = value is not dogpile.cache.api.NO_VALUE + # dogpile sometimes returns None, but only checks for truthiness. Coalesce + # to minimize APM users' confusion. + expired = instance._is_expired(createdtime) or False + return value, createdtime + finally: + # Keys are checked in random order so the 'final' answer for partial hits + # should really be false (ie. if any are 'negative', then the tag value + # should be). This means ANDing all hit values and ORing all expired values. + span = pin.tracer.current_span() + span.set_tag('hit', asbool(span.get_tag('hit') or 'True') and hit) + span.set_tag('expired', asbool(span.get_tag('expired') or 'False') or expired) + instance.value_and_created_fn = wrapped_backend_fetcher diff --git a/ddtrace/contrib/dogpile_cache/patch.py b/ddtrace/contrib/dogpile_cache/patch.py new file mode 100644 index 0000000000..6525de587b --- /dev/null +++ b/ddtrace/contrib/dogpile_cache/patch.py @@ -0,0 +1,37 @@ +import dogpile + +from ddtrace.pin import Pin, _DD_PIN_NAME, _DD_PIN_PROXY_NAME +from ddtrace.vendor.wrapt import wrap_function_wrapper as _w + +from .lock import _wrap_lock_ctor +from .region import _wrap_get_create, _wrap_get_create_multi + +_get_or_create = dogpile.cache.region.CacheRegion.get_or_create +_get_or_create_multi = dogpile.cache.region.CacheRegion.get_or_create_multi +_lock_ctor = dogpile.lock.Lock.__init__ + + +def patch(): + if getattr(dogpile.cache, '_datadog_patch', False): + return + setattr(dogpile.cache, '_datadog_patch', True) + + _w('dogpile.cache.region', 'CacheRegion.get_or_create', _wrap_get_create) + _w('dogpile.cache.region', 'CacheRegion.get_or_create_multi', _wrap_get_create_multi) + _w('dogpile.lock', 'Lock.__init__', _wrap_lock_ctor) + + Pin(app='dogpile.cache', service='dogpile.cache').onto(dogpile.cache) + + +def unpatch(): + if not getattr(dogpile.cache, '_datadog_patch', False): + return + setattr(dogpile.cache, '_datadog_patch', False) + # This looks silly but the unwrap util doesn't support class instance methods, even + # though wrapt does. This was causing the patches to stack on top of each other + # during testing. + dogpile.cache.region.CacheRegion.get_or_create = _get_or_create + dogpile.cache.region.CacheRegion.get_or_create_multi = _get_or_create_multi + dogpile.lock.Lock.__init__ = _lock_ctor + setattr(dogpile.cache, _DD_PIN_NAME, None) + setattr(dogpile.cache, _DD_PIN_PROXY_NAME, None) diff --git a/ddtrace/contrib/dogpile_cache/region.py b/ddtrace/contrib/dogpile_cache/region.py new file mode 100644 index 0000000000..61d1cdb618 --- /dev/null +++ b/ddtrace/contrib/dogpile_cache/region.py @@ -0,0 +1,29 @@ +import dogpile + +from ...pin import Pin + + +def _wrap_get_create(func, instance, args, kwargs): + pin = Pin.get_from(dogpile.cache) + if not pin or not pin.enabled(): + return func(*args, **kwargs) + + key = args[0] + with pin.tracer.trace('dogpile.cache', resource='get_or_create', span_type='cache') as span: + span.set_tag('key', key) + span.set_tag('region', instance.name) + span.set_tag('backend', instance.actual_backend.__class__.__name__) + return func(*args, **kwargs) + + +def _wrap_get_create_multi(func, instance, args, kwargs): + pin = Pin.get_from(dogpile.cache) + if not pin or not pin.enabled(): + return func(*args, **kwargs) + + keys = args[0] + with pin.tracer.trace('dogpile.cache', resource='get_or_create_multi', span_type='cache') as span: + span.set_tag('keys', keys) + span.set_tag('region', instance.name) + span.set_tag('backend', instance.actual_backend.__class__.__name__) + return func(*args, **kwargs) diff --git a/ddtrace/contrib/elasticsearch/__init__.py b/ddtrace/contrib/elasticsearch/__init__.py new file mode 100644 index 0000000000..6b66cb3632 --- /dev/null +++ b/ddtrace/contrib/elasticsearch/__init__.py @@ -0,0 +1,33 @@ +"""Instrument Elasticsearch to report Elasticsearch queries. + +``patch_all`` will automatically patch your Elasticsearch instance to make it work. +:: + + from ddtrace import Pin, patch + from elasticsearch import Elasticsearch + + # If not patched yet, you can patch elasticsearch specifically + patch(elasticsearch=True) + + # This will report spans with the default instrumentation + es = Elasticsearch(port=ELASTICSEARCH_CONFIG['port']) + # Example of instrumented query + es.indices.create(index='books', ignore=400) + + # Use a pin to specify metadata related to this client + es = Elasticsearch(port=ELASTICSEARCH_CONFIG['port']) + Pin.override(es.transport, service='elasticsearch-videos') + es.indices.create(index='videos', ignore=400) +""" +from ...utils.importlib import require_modules + +# DEV: We only require one of these modules to be available +required_modules = ['elasticsearch', 'elasticsearch1', 'elasticsearch2', 'elasticsearch5', 'elasticsearch6'] + +with require_modules(required_modules) as missing_modules: + # We were able to find at least one of the required modules + if set(missing_modules) != set(required_modules): + from .transport import get_traced_transport + from .patch import patch + + __all__ = ['get_traced_transport', 'patch'] diff --git a/ddtrace/contrib/elasticsearch/elasticsearch.py b/ddtrace/contrib/elasticsearch/elasticsearch.py new file mode 100644 index 0000000000..efd8e8bb5f --- /dev/null +++ b/ddtrace/contrib/elasticsearch/elasticsearch.py @@ -0,0 +1,14 @@ +from importlib import import_module + +module_names = ('elasticsearch', 'elasticsearch1', 'elasticsearch2', 'elasticsearch5', 'elasticsearch6') +for module_name in module_names: + try: + elasticsearch = import_module(module_name) + break + except ImportError: + pass +else: + raise ImportError('could not import any of {0!r}'.format(module_names)) + + +__all__ = ['elasticsearch'] diff --git a/ddtrace/contrib/elasticsearch/patch.py b/ddtrace/contrib/elasticsearch/patch.py new file mode 100644 index 0000000000..16b9d6e0e0 --- /dev/null +++ b/ddtrace/contrib/elasticsearch/patch.py @@ -0,0 +1,118 @@ +from importlib import import_module + +from ddtrace.vendor.wrapt import wrap_function_wrapper as _w + +from .quantize import quantize + +from ...compat import urlencode +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from ...ext import SpanTypes, elasticsearch as metadata, http +from ...pin import Pin +from ...utils.wrappers import unwrap as _u +from ...settings import config + + +def _es_modules(): + module_names = ('elasticsearch', 'elasticsearch1', 'elasticsearch2', 'elasticsearch5', 'elasticsearch6') + for module_name in module_names: + try: + yield import_module(module_name) + except ImportError: + pass + + +# NB: We are patching the default elasticsearch.transport module +def patch(): + for elasticsearch in _es_modules(): + _patch(elasticsearch) + + +def _patch(elasticsearch): + if getattr(elasticsearch, '_datadog_patch', False): + return + setattr(elasticsearch, '_datadog_patch', True) + _w(elasticsearch.transport, 'Transport.perform_request', _get_perform_request(elasticsearch)) + Pin(service=metadata.SERVICE, app=metadata.APP).onto(elasticsearch.transport.Transport) + + +def unpatch(): + for elasticsearch in _es_modules(): + _unpatch(elasticsearch) + + +def _unpatch(elasticsearch): + if getattr(elasticsearch, '_datadog_patch', False): + setattr(elasticsearch, '_datadog_patch', False) + _u(elasticsearch.transport.Transport, 'perform_request') + + +def _get_perform_request(elasticsearch): + def _perform_request(func, instance, args, kwargs): + pin = Pin.get_from(instance) + if not pin or not pin.enabled(): + return func(*args, **kwargs) + + with pin.tracer.trace('elasticsearch.query', span_type=SpanTypes.ELASTICSEARCH) as span: + # Don't instrument if the trace is not sampled + if not span.sampled: + return func(*args, **kwargs) + + method, url = args + params = kwargs.get('params') + body = kwargs.get('body') + + span.service = pin.service + span.set_tag(metadata.METHOD, method) + span.set_tag(metadata.URL, url) + span.set_tag(metadata.PARAMS, urlencode(params)) + if config.elasticsearch.trace_query_string: + span.set_tag(http.QUERY_STRING, urlencode(params)) + if method == 'GET': + span.set_tag(metadata.BODY, instance.serializer.dumps(body)) + status = None + + # set analytics sample rate + span.set_tag( + ANALYTICS_SAMPLE_RATE_KEY, + config.elasticsearch.get_analytics_sample_rate() + ) + + span = quantize(span) + + try: + result = func(*args, **kwargs) + except elasticsearch.exceptions.TransportError as e: + span.set_tag(http.STATUS_CODE, getattr(e, 'status_code', 500)) + raise + + try: + # Optional metadata extraction with soft fail. + if isinstance(result, tuple) and len(result) == 2: + # elasticsearch<2.4; it returns both the status and the body + status, data = result + else: + # elasticsearch>=2.4; internal change for ``Transport.perform_request`` + # that just returns the body + data = result + + took = data.get('took') + if took: + span.set_metric(metadata.TOOK, int(took)) + except Exception: + pass + + if status: + span.set_tag(http.STATUS_CODE, status) + + return result + return _perform_request + + +# Backwards compatibility for anyone who decided to import `ddtrace.contrib.elasticsearch.patch._perform_request` +# DEV: `_perform_request` is a `wrapt.FunctionWrapper` +try: + # DEV: Import as `es` to not shadow loop variables above + import elasticsearch as es + _perform_request = _get_perform_request(es) +except ImportError: + pass diff --git a/ddtrace/contrib/elasticsearch/quantize.py b/ddtrace/contrib/elasticsearch/quantize.py new file mode 100644 index 0000000000..64b688ce39 --- /dev/null +++ b/ddtrace/contrib/elasticsearch/quantize.py @@ -0,0 +1,37 @@ +import re + +from ...ext import elasticsearch as metadata + +# Replace any ID +ID_REGEXP = re.compile(r'/([0-9]+)([/\?]|$)') +ID_PLACEHOLDER = r'/?\2' + +# Remove digits from potential timestamped indexes (should be an option). +# For now, let's say 2+ digits +INDEX_REGEXP = re.compile(r'[0-9]{2,}') +INDEX_PLACEHOLDER = r'?' + + +def quantize(span): + """Quantize an elasticsearch span + + We want to extract a meaningful `resource` from the request. + We do it based on the method + url, with some cleanup applied to the URL. + + The URL might a ID, but also it is common to have timestamped indexes. + While the first is easy to catch, the second should probably be configurable. + + All of this should probably be done in the Agent. Later. + """ + url = span.get_tag(metadata.URL) + method = span.get_tag(metadata.METHOD) + + quantized_url = ID_REGEXP.sub(ID_PLACEHOLDER, url) + quantized_url = INDEX_REGEXP.sub(INDEX_PLACEHOLDER, quantized_url) + + span.resource = '{method} {url}'.format( + method=method, + url=quantized_url + ) + + return span diff --git a/ddtrace/contrib/elasticsearch/transport.py b/ddtrace/contrib/elasticsearch/transport.py new file mode 100644 index 0000000000..347f710bd6 --- /dev/null +++ b/ddtrace/contrib/elasticsearch/transport.py @@ -0,0 +1,66 @@ +# DEV: This will import the first available module from: +# `elasticsearch`, `elasticsearch1`, `elasticsearch2`, `elasticsearch5`, 'elasticsearch6' +from .elasticsearch import elasticsearch + +from .quantize import quantize + +from ...utils.deprecation import deprecated +from ...compat import urlencode +from ...ext import SpanTypes, http, elasticsearch as metadata +from ...settings import config + +DEFAULT_SERVICE = 'elasticsearch' + + +@deprecated(message='Use patching instead (see the docs).', version='1.0.0') +def get_traced_transport(datadog_tracer, datadog_service=DEFAULT_SERVICE): + + class TracedTransport(elasticsearch.Transport): + """ Extend elasticseach transport layer to allow Datadog + tracer to catch any performed request. + """ + + _datadog_tracer = datadog_tracer + _datadog_service = datadog_service + + def perform_request(self, method, url, params=None, body=None): + with self._datadog_tracer.trace('elasticsearch.query', span_type=SpanTypes.ELASTICSEARCH) as s: + # Don't instrument if the trace is not sampled + if not s.sampled: + return super(TracedTransport, self).perform_request( + method, url, params=params, body=body) + + s.service = self._datadog_service + s.set_tag(metadata.METHOD, method) + s.set_tag(metadata.URL, url) + s.set_tag(metadata.PARAMS, urlencode(params)) + if config.elasticsearch.trace_query_string: + s.set_tag(http.QUERY_STRING, urlencode(params)) + if method == 'GET': + s.set_tag(metadata.BODY, self.serializer.dumps(body)) + s = quantize(s) + + try: + result = super(TracedTransport, self).perform_request(method, url, params=params, body=body) + except elasticsearch.exceptions.TransportError as e: + s.set_tag(http.STATUS_CODE, e.status_code) + raise + + status = None + if isinstance(result, tuple) and len(result) == 2: + # elasticsearch<2.4; it returns both the status and the body + status, data = result + else: + # elasticsearch>=2.4; internal change for ``Transport.perform_request`` + # that just returns the body + data = result + + if status: + s.set_tag(http.STATUS_CODE, status) + + took = data.get('took') + if took: + s.set_metric(metadata.TOOK, int(took)) + + return result + return TracedTransport diff --git a/ddtrace/contrib/falcon/__init__.py b/ddtrace/contrib/falcon/__init__.py new file mode 100644 index 0000000000..ca69d3f0cb --- /dev/null +++ b/ddtrace/contrib/falcon/__init__.py @@ -0,0 +1,59 @@ +""" +To trace the falcon web framework, install the trace middleware:: + + import falcon + from ddtrace import tracer + from ddtrace.contrib.falcon import TraceMiddleware + + mw = TraceMiddleware(tracer, 'my-falcon-app') + falcon.API(middleware=[mw]) + +You can also use the autopatching functionality:: + + import falcon + from ddtrace import tracer, patch + + patch(falcon=True) + + app = falcon.API() + +To disable distributed tracing when using autopatching, set the +``DATADOG_FALCON_DISTRIBUTED_TRACING`` environment variable to ``False``. + +To enable generating APM events for Trace Search & Analytics, set the +``DD_FALCON_ANALYTICS_ENABLED`` environment variable to ``True``. + +**Supported span hooks** + +The following is a list of available tracer hooks that can be used to intercept +and modify spans created by this integration. + +- ``request`` + - Called before the response has been finished + - ``def on_falcon_request(span, request, response)`` + + +Example:: + + import falcon + from ddtrace import config, patch_all + patch_all() + + app = falcon.API() + + @config.falcon.hooks.on('request') + def on_falcon_request(span, request, response): + span.set_tag('my.custom', 'tag') + +:ref:`Headers tracing ` is supported for this integration. +""" +from ...utils.importlib import require_modules + +required_modules = ['falcon'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .middleware import TraceMiddleware + from .patch import patch + + __all__ = ['TraceMiddleware', 'patch'] diff --git a/ddtrace/contrib/falcon/middleware.py b/ddtrace/contrib/falcon/middleware.py new file mode 100644 index 0000000000..e30b070494 --- /dev/null +++ b/ddtrace/contrib/falcon/middleware.py @@ -0,0 +1,116 @@ +import sys + +from ddtrace.ext import SpanTypes, http as httpx +from ddtrace.http import store_request_headers, store_response_headers +from ddtrace.propagation.http import HTTPPropagator + +from ...compat import iteritems +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from ...settings import config + + +class TraceMiddleware(object): + + def __init__(self, tracer, service='falcon', distributed_tracing=True): + # store tracing references + self.tracer = tracer + self.service = service + self._distributed_tracing = distributed_tracing + + def process_request(self, req, resp): + if self._distributed_tracing: + # Falcon uppercases all header names. + headers = dict((k.lower(), v) for k, v in iteritems(req.headers)) + propagator = HTTPPropagator() + context = propagator.extract(headers) + # Only activate the new context if there was a trace id extracted + if context.trace_id: + self.tracer.context_provider.activate(context) + + span = self.tracer.trace( + 'falcon.request', + service=self.service, + span_type=SpanTypes.WEB, + ) + + # set analytics sample rate with global config enabled + span.set_tag( + ANALYTICS_SAMPLE_RATE_KEY, + config.falcon.get_analytics_sample_rate(use_global_config=True) + ) + + span.set_tag(httpx.METHOD, req.method) + span.set_tag(httpx.URL, req.url) + if config.falcon.trace_query_string: + span.set_tag(httpx.QUERY_STRING, req.query_string) + + # Note: any request header set after this line will not be stored in the span + store_request_headers(req.headers, span, config.falcon) + + def process_resource(self, req, resp, resource, params): + span = self.tracer.current_span() + if not span: + return # unexpected + span.resource = '%s %s' % (req.method, _name(resource)) + + def process_response(self, req, resp, resource, req_succeeded=None): + # req_succeded is not a kwarg in the API, but we need that to support + # Falcon 1.0 that doesn't provide this argument + span = self.tracer.current_span() + if not span: + return # unexpected + + status = httpx.normalize_status_code(resp.status) + + # Note: any response header set after this line will not be stored in the span + store_response_headers(resp._headers, span, config.falcon) + + # FIXME[matt] falcon does not map errors or unmatched routes + # to proper status codes, so we we have to try to infer them + # here. See https://github.com/falconry/falcon/issues/606 + if resource is None: + status = '404' + span.resource = '%s 404' % req.method + span.set_tag(httpx.STATUS_CODE, status) + span.finish() + return + + err_type = sys.exc_info()[0] + if err_type is not None: + if req_succeeded is None: + # backward-compatibility with Falcon 1.0; any version + # greater than 1.0 has req_succeded in [True, False] + # TODO[manu]: drop the support at some point + status = _detect_and_set_status_error(err_type, span) + elif req_succeeded is False: + # Falcon 1.1+ provides that argument that is set to False + # if get an Exception (404 is still an exception) + status = _detect_and_set_status_error(err_type, span) + + span.set_tag(httpx.STATUS_CODE, status) + + # Emit span hook for this response + # DEV: Emit before closing so they can overwrite `span.resource` if they want + config.falcon.hooks._emit('request', span, req, resp) + + # Close the span + span.finish() + + +def _is_404(err_type): + return 'HTTPNotFound' in err_type.__name__ + + +def _detect_and_set_status_error(err_type, span): + """Detect the HTTP status code from the current stacktrace and + set the traceback to the given Span + """ + if not _is_404(err_type): + span.set_traceback() + return '500' + elif _is_404(err_type): + return '404' + + +def _name(r): + return '%s.%s' % (r.__module__, r.__class__.__name__) diff --git a/ddtrace/contrib/falcon/patch.py b/ddtrace/contrib/falcon/patch.py new file mode 100644 index 0000000000..5eef31f6d6 --- /dev/null +++ b/ddtrace/contrib/falcon/patch.py @@ -0,0 +1,31 @@ +import os +from ddtrace.vendor import wrapt +import falcon + +from ddtrace import tracer + +from .middleware import TraceMiddleware +from ...utils.formats import asbool, get_env + + +def patch(): + """ + Patch falcon.API to include contrib.falcon.TraceMiddleware + by default + """ + if getattr(falcon, '_datadog_patch', False): + return + + setattr(falcon, '_datadog_patch', True) + wrapt.wrap_function_wrapper('falcon', 'API.__init__', traced_init) + + +def traced_init(wrapped, instance, args, kwargs): + mw = kwargs.pop('middleware', []) + service = os.environ.get('DATADOG_SERVICE_NAME') or 'falcon' + distributed_tracing = asbool(get_env('falcon', 'distributed_tracing', True)) + + mw.insert(0, TraceMiddleware(tracer, service, distributed_tracing)) + kwargs['middleware'] = mw + + wrapped(*args, **kwargs) diff --git a/ddtrace/contrib/flask/__init__.py b/ddtrace/contrib/flask/__init__.py new file mode 100644 index 0000000000..369dcf83d5 --- /dev/null +++ b/ddtrace/contrib/flask/__init__.py @@ -0,0 +1,113 @@ +""" +The Flask__ integration will add tracing to all requests to your Flask application. + +This integration will track the entire Flask lifecycle including user-defined endpoints, hooks, +signals, and templating rendering. + +To configure tracing manually:: + + from ddtrace import patch_all + patch_all() + + from flask import Flask + + app = Flask(__name__) + + + @app.route('/') + def index(): + return 'hello world' + + + if __name__ == '__main__': + app.run() + + +You may also enable Flask tracing automatically via ddtrace-run:: + + ddtrace-run python app.py + + +Configuration +~~~~~~~~~~~~~ + +.. py:data:: ddtrace.config.flask['distributed_tracing_enabled'] + + Whether to parse distributed tracing headers from requests received by your Flask app. + + Default: ``True`` + +.. py:data:: ddtrace.config.flask['analytics_enabled'] + + Whether to generate APM events for Flask in Trace Search & Analytics. + + Can also be enabled with the ``DD_FLASK_ANALYTICS_ENABLED`` environment variable. + + Default: ``None`` + +.. py:data:: ddtrace.config.flask['service_name'] + + The service name reported for your Flask app. + + Can also be configured via the ``DATADOG_SERVICE_NAME`` environment variable. + + Default: ``'flask'`` + +.. py:data:: ddtrace.config.flask['collect_view_args'] + + Whether to add request tags for view function argument values. + + Default: ``True`` + +.. py:data:: ddtrace.config.flask['template_default_name'] + + The default template name to use when one does not exist. + + Default: ```` + +.. py:data:: ddtrace.config.flask['trace_signals'] + + Whether to trace Flask signals (``before_request``, ``after_request``, etc). + + Default: ``True`` + +.. py:data:: ddtrace.config.flask['extra_error_codes'] + + A list of response codes that should get marked as errors. + + *5xx codes are always considered an error.* + + Default: ``[]`` + + +Example:: + + from ddtrace import config + + # Enable distributed tracing + config.flask['distributed_tracing_enabled'] = True + + # Override service name + config.flask['service_name'] = 'custom-service-name' + + # Report 401, and 403 responses as errors + config.flask['extra_error_codes'] = [401, 403] + +.. __: http://flask.pocoo.org/ +""" + +from ...utils.importlib import require_modules + + +required_modules = ['flask'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + # DEV: We do this so we can `@mock.patch('ddtrace.contrib.flask._patch.')` in tests + from . import patch as _patch + from .middleware import TraceMiddleware + + patch = _patch.patch + unpatch = _patch.unpatch + + __all__ = ['TraceMiddleware', 'patch', 'unpatch'] diff --git a/ddtrace/contrib/flask/helpers.py b/ddtrace/contrib/flask/helpers.py new file mode 100644 index 0000000000..38dcd25037 --- /dev/null +++ b/ddtrace/contrib/flask/helpers.py @@ -0,0 +1,44 @@ +from ddtrace import Pin +import flask + + +def get_current_app(): + """Helper to get the flask.app.Flask from the current app context""" + appctx = flask._app_ctx_stack.top + if appctx: + return appctx.app + return None + + +def with_instance_pin(func): + """Helper to wrap a function wrapper and ensure an enabled pin is available for the `instance`""" + def wrapper(wrapped, instance, args, kwargs): + pin = Pin._find(wrapped, instance, get_current_app()) + if not pin or not pin.enabled(): + return wrapped(*args, **kwargs) + + return func(pin, wrapped, instance, args, kwargs) + return wrapper + + +def simple_tracer(name, span_type=None): + """Generate a simple tracer that wraps the function call with `with tracer.trace()`""" + @with_instance_pin + def wrapper(pin, wrapped, instance, args, kwargs): + with pin.tracer.trace(name, service=pin.service, span_type=span_type): + return wrapped(*args, **kwargs) + return wrapper + + +def get_current_span(pin, root=False): + """Helper to get the current span from the provided pins current call context""" + if not pin or not pin.enabled(): + return None + + ctx = pin.tracer.get_call_context() + if not ctx: + return None + + if root: + return ctx.get_current_root_span() + return ctx.get_current_span() diff --git a/ddtrace/contrib/flask/middleware.py b/ddtrace/contrib/flask/middleware.py new file mode 100644 index 0000000000..fb9a45f88c --- /dev/null +++ b/ddtrace/contrib/flask/middleware.py @@ -0,0 +1,208 @@ +from ... import compat +from ...ext import SpanTypes, http, errors +from ...internal.logger import get_logger +from ...propagation.http import HTTPPropagator +from ...utils.deprecation import deprecated + +import flask.templating +from flask import g, request, signals + + +log = get_logger(__name__) + + +SPAN_NAME = 'flask.request' + + +class TraceMiddleware(object): + + @deprecated(message='Use patching instead (see the docs).', version='1.0.0') + def __init__(self, app, tracer, service='flask', use_signals=True, distributed_tracing=False): + self.app = app + log.debug('flask: initializing trace middleware') + + # Attach settings to the inner application middleware. This is required if double + # instrumentation happens (i.e. `ddtrace-run` with `TraceMiddleware`). In that + # case, `ddtrace-run` instruments the application, but then users code is unable + # to update settings such as `distributed_tracing` flag. This step can be removed + # when the `Config` object is used + self.app._tracer = tracer + self.app._service = service + self.app._use_distributed_tracing = distributed_tracing + self.use_signals = use_signals + + # safe-guard to avoid double instrumentation + if getattr(app, '__dd_instrumentation', False): + return + setattr(app, '__dd_instrumentation', True) + + # Install hooks which time requests. + self.app.before_request(self._before_request) + self.app.after_request(self._after_request) + self.app.teardown_request(self._teardown_request) + + # Add exception handling signals. This will annotate exceptions that + # are caught and handled in custom user code. + # See https://github.com/DataDog/dd-trace-py/issues/390 + if use_signals and not signals.signals_available: + log.debug(_blinker_not_installed_msg) + self.use_signals = use_signals and signals.signals_available + timing_signals = { + 'got_request_exception': self._request_exception, + } + self._receivers = [] + if self.use_signals and _signals_exist(timing_signals): + self._connect(timing_signals) + + _patch_render(tracer) + + def _connect(self, signal_to_handler): + connected = True + for name, handler in signal_to_handler.items(): + s = getattr(signals, name, None) + if not s: + connected = False + log.warning('trying to instrument missing signal %s', name) + continue + # we should connect to the signal without using weak references + # otherwise they will be garbage collected and our handlers + # will be disconnected after the first call; for more details check: + # https://github.com/jek/blinker/blob/207446f2d97/blinker/base.py#L106-L108 + s.connect(handler, sender=self.app, weak=False) + self._receivers.append(handler) + return connected + + def _before_request(self): + """ Starts tracing the current request and stores it in the global + request object. + """ + self._start_span() + + def _after_request(self, response): + """ Runs after the server can process a response. """ + try: + self._process_response(response) + except Exception: + log.debug('flask: error tracing response', exc_info=True) + return response + + def _teardown_request(self, exception): + """ Runs at the end of a request. If there's an unhandled exception, it + will be passed in. + """ + # when we teardown the span, ensure we have a clean slate. + span = getattr(g, 'flask_datadog_span', None) + setattr(g, 'flask_datadog_span', None) + if not span: + return + + try: + self._finish_span(span, exception=exception) + except Exception: + log.debug('flask: error finishing span', exc_info=True) + + def _start_span(self): + if self.app._use_distributed_tracing: + propagator = HTTPPropagator() + context = propagator.extract(request.headers) + # Only need to active the new context if something was propagated + if context.trace_id: + self.app._tracer.context_provider.activate(context) + try: + g.flask_datadog_span = self.app._tracer.trace( + SPAN_NAME, + service=self.app._service, + span_type=SpanTypes.WEB, + ) + except Exception: + log.debug('flask: error tracing request', exc_info=True) + + def _process_response(self, response): + span = getattr(g, 'flask_datadog_span', None) + if not (span and span.sampled): + return + + code = response.status_code if response else '' + span.set_tag(http.STATUS_CODE, code) + + def _request_exception(self, *args, **kwargs): + exception = kwargs.get('exception', None) + span = getattr(g, 'flask_datadog_span', None) + if span and exception: + _set_error_on_span(span, exception) + + def _finish_span(self, span, exception=None): + if not span or not span.sampled: + return + + code = span.get_tag(http.STATUS_CODE) or 0 + try: + code = int(code) + except Exception: + code = 0 + + if exception: + # if the request has already had a code set, don't override it. + code = code or 500 + _set_error_on_span(span, exception) + + # the endpoint that matched the request is None if an exception + # happened so we fallback to a common resource + span.error = 0 if code < 500 else 1 + + # the request isn't guaranteed to exist here, so only use it carefully. + method = '' + endpoint = '' + url = '' + if request: + method = request.method + endpoint = request.endpoint or code + url = request.base_url or '' + + # Let users specify their own resource in middleware if they so desire. + # See case https://github.com/DataDog/dd-trace-py/issues/353 + if span.resource == SPAN_NAME: + resource = endpoint or code + span.resource = compat.to_unicode(resource).lower() + + span.set_tag(http.URL, compat.to_unicode(url)) + span.set_tag(http.STATUS_CODE, code) + span.set_tag(http.METHOD, method) + span.finish() + + +def _set_error_on_span(span, exception): + # The 3 next lines might not be strictly required, since `set_traceback` + # also get the exception from the sys.exc_info (and fill the error meta). + # Since we aren't sure it always work/for insuring no BC break, keep + # these lines which get overridden anyway. + span.set_tag(errors.ERROR_TYPE, type(exception)) + span.set_tag(errors.ERROR_MSG, exception) + # The provided `exception` object doesn't have a stack trace attached, + # so attach the stack trace with `set_traceback`. + span.set_traceback() + + +def _patch_render(tracer): + """ patch flask's render template methods with the given tracer. """ + # fall back to patching global method + _render = flask.templating._render + + def _traced_render(template, context, app): + with tracer.trace('flask.template', span_type=SpanTypes.TEMPLATE) as span: + span.set_tag('flask.template', template.name or 'string') + return _render(template, context, app) + + flask.templating._render = _traced_render + + +def _signals_exist(names): + """ Return true if all of the given signals exist in this version of flask. + """ + return all(getattr(signals, n, False) for n in names) + + +_blinker_not_installed_msg = ( + 'please install blinker to use flask signals. ' + 'http://flask.pocoo.org/docs/0.11/signals/' +) diff --git a/ddtrace/contrib/flask/patch.py b/ddtrace/contrib/flask/patch.py new file mode 100644 index 0000000000..243a8cc56b --- /dev/null +++ b/ddtrace/contrib/flask/patch.py @@ -0,0 +1,497 @@ +import os + +import flask +import werkzeug +from ddtrace.vendor.wrapt import wrap_function_wrapper as _w + +from ddtrace import compat +from ddtrace import config, Pin + +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from ...ext import SpanTypes, http +from ...internal.logger import get_logger +from ...propagation.http import HTTPPropagator +from ...utils.wrappers import unwrap as _u +from .helpers import get_current_app, get_current_span, simple_tracer, with_instance_pin +from .wrappers import wrap_function, wrap_signal + +log = get_logger(__name__) + +FLASK_ENDPOINT = 'flask.endpoint' +FLASK_VIEW_ARGS = 'flask.view_args' +FLASK_URL_RULE = 'flask.url_rule' +FLASK_VERSION = 'flask.version' + +# Configure default configuration +config._add('flask', dict( + # Flask service configuration + # DEV: Environment variable 'DATADOG_SERVICE_NAME' used for backwards compatibility + service_name=os.environ.get('DATADOG_SERVICE_NAME') or 'flask', + app='flask', + + collect_view_args=True, + distributed_tracing_enabled=True, + template_default_name='', + trace_signals=True, + + # We mark 5xx responses as errors, these codes are additional status codes to mark as errors + # DEV: This is so that if a user wants to see `401` or `403` as an error, they can configure that + extra_error_codes=set(), +)) + + +# Extract flask version into a tuple e.g. (0, 12, 1) or (1, 0, 2) +# DEV: This makes it so we can do `if flask_version >= (0, 12, 0):` +# DEV: Example tests: +# (0, 10, 0) > (0, 10) +# (0, 10, 0) >= (0, 10, 0) +# (0, 10, 1) >= (0, 10) +# (0, 11, 1) >= (0, 10) +# (0, 11, 1) >= (0, 10, 2) +# (1, 0, 0) >= (0, 10) +# (0, 9) == (0, 9) +# (0, 9, 0) != (0, 9) +# (0, 8, 5) <= (0, 9) +flask_version_str = getattr(flask, '__version__', '0.0.0') +flask_version = tuple([int(i) for i in flask_version_str.split('.')]) + + +def patch(): + """ + Patch `flask` module for tracing + """ + # Check to see if we have patched Flask yet or not + if getattr(flask, '_datadog_patch', False): + return + setattr(flask, '_datadog_patch', True) + + # Attach service pin to `flask.app.Flask` + Pin( + service=config.flask['service_name'], + app=config.flask['app'] + ).onto(flask.Flask) + + # flask.app.Flask methods that have custom tracing (add metadata, wrap functions, etc) + _w('flask', 'Flask.wsgi_app', traced_wsgi_app) + _w('flask', 'Flask.dispatch_request', request_tracer('dispatch_request')) + _w('flask', 'Flask.preprocess_request', request_tracer('preprocess_request')) + _w('flask', 'Flask.add_url_rule', traced_add_url_rule) + _w('flask', 'Flask.endpoint', traced_endpoint) + _w('flask', 'Flask._register_error_handler', traced_register_error_handler) + + # flask.blueprints.Blueprint methods that have custom tracing (add metadata, wrap functions, etc) + _w('flask', 'Blueprint.register', traced_blueprint_register) + _w('flask', 'Blueprint.add_url_rule', traced_blueprint_add_url_rule) + + # flask.app.Flask traced hook decorators + flask_hooks = [ + 'before_request', + 'before_first_request', + 'after_request', + 'teardown_request', + 'teardown_appcontext', + ] + for hook in flask_hooks: + _w('flask', 'Flask.{}'.format(hook), traced_flask_hook) + _w('flask', 'after_this_request', traced_flask_hook) + + # flask.app.Flask traced methods + flask_app_traces = [ + 'process_response', + 'handle_exception', + 'handle_http_exception', + 'handle_user_exception', + 'try_trigger_before_first_request_functions', + 'do_teardown_request', + 'do_teardown_appcontext', + 'send_static_file', + ] + for name in flask_app_traces: + _w('flask', 'Flask.{}'.format(name), simple_tracer('flask.{}'.format(name))) + + # flask static file helpers + _w('flask', 'send_file', simple_tracer('flask.send_file')) + + # flask.json.jsonify + _w('flask', 'jsonify', traced_jsonify) + + # flask.templating traced functions + _w('flask.templating', '_render', traced_render) + _w('flask', 'render_template', traced_render_template) + _w('flask', 'render_template_string', traced_render_template_string) + + # flask.blueprints.Blueprint traced hook decorators + bp_hooks = [ + 'after_app_request', + 'after_request', + 'before_app_first_request', + 'before_app_request', + 'before_request', + 'teardown_request', + 'teardown_app_request', + ] + for hook in bp_hooks: + _w('flask', 'Blueprint.{}'.format(hook), traced_flask_hook) + + # flask.signals signals + if config.flask['trace_signals']: + signals = [ + 'template_rendered', + 'request_started', + 'request_finished', + 'request_tearing_down', + 'got_request_exception', + 'appcontext_tearing_down', + ] + # These were added in 0.11.0 + if flask_version >= (0, 11): + signals.append('before_render_template') + + # These were added in 0.10.0 + if flask_version >= (0, 10): + signals.append('appcontext_pushed') + signals.append('appcontext_popped') + signals.append('message_flashed') + + for signal in signals: + module = 'flask' + + # v0.9 missed importing `appcontext_tearing_down` in `flask/__init__.py` + # https://github.com/pallets/flask/blob/0.9/flask/__init__.py#L35-L37 + # https://github.com/pallets/flask/blob/0.9/flask/signals.py#L52 + # DEV: Version 0.9 doesn't have a patch version + if flask_version <= (0, 9) and signal == 'appcontext_tearing_down': + module = 'flask.signals' + + # DEV: Patch `receivers_for` instead of `connect` to ensure we don't mess with `disconnect` + _w(module, '{}.receivers_for'.format(signal), traced_signal_receivers_for(signal)) + + +def unpatch(): + if not getattr(flask, '_datadog_patch', False): + return + setattr(flask, '_datadog_patch', False) + + props = [ + # Flask + 'Flask.wsgi_app', + 'Flask.dispatch_request', + 'Flask.add_url_rule', + 'Flask.endpoint', + 'Flask._register_error_handler', + + 'Flask.preprocess_request', + 'Flask.process_response', + 'Flask.handle_exception', + 'Flask.handle_http_exception', + 'Flask.handle_user_exception', + 'Flask.try_trigger_before_first_request_functions', + 'Flask.do_teardown_request', + 'Flask.do_teardown_appcontext', + 'Flask.send_static_file', + + # Flask Hooks + 'Flask.before_request', + 'Flask.before_first_request', + 'Flask.after_request', + 'Flask.teardown_request', + 'Flask.teardown_appcontext', + + # Blueprint + 'Blueprint.register', + 'Blueprint.add_url_rule', + + # Blueprint Hooks + 'Blueprint.after_app_request', + 'Blueprint.after_request', + 'Blueprint.before_app_first_request', + 'Blueprint.before_app_request', + 'Blueprint.before_request', + 'Blueprint.teardown_request', + 'Blueprint.teardown_app_request', + + # Signals + 'template_rendered.receivers_for', + 'request_started.receivers_for', + 'request_finished.receivers_for', + 'request_tearing_down.receivers_for', + 'got_request_exception.receivers_for', + 'appcontext_tearing_down.receivers_for', + + # Top level props + 'after_this_request', + 'send_file', + 'jsonify', + 'render_template', + 'render_template_string', + 'templating._render', + ] + + # These were added in 0.11.0 + if flask_version >= (0, 11): + props.append('before_render_template.receivers_for') + + # These were added in 0.10.0 + if flask_version >= (0, 10): + props.append('appcontext_pushed.receivers_for') + props.append('appcontext_popped.receivers_for') + props.append('message_flashed.receivers_for') + + for prop in props: + # Handle 'flask.request_started.receivers_for' + obj = flask + + # v0.9.0 missed importing `appcontext_tearing_down` in `flask/__init__.py` + # https://github.com/pallets/flask/blob/0.9/flask/__init__.py#L35-L37 + # https://github.com/pallets/flask/blob/0.9/flask/signals.py#L52 + # DEV: Version 0.9 doesn't have a patch version + if flask_version <= (0, 9) and prop == 'appcontext_tearing_down.receivers_for': + obj = flask.signals + + if '.' in prop: + attr, _, prop = prop.partition('.') + obj = getattr(obj, attr, object()) + _u(obj, prop) + + +@with_instance_pin +def traced_wsgi_app(pin, wrapped, instance, args, kwargs): + """ + Wrapper for flask.app.Flask.wsgi_app + + This wrapper is the starting point for all requests. + """ + # DEV: This is safe before this is the args for a WSGI handler + # https://www.python.org/dev/peps/pep-3333/ + environ, start_response = args + + # Create a werkzeug request from the `environ` to make interacting with it easier + # DEV: This executes before a request context is created + request = werkzeug.Request(environ) + + # Configure distributed tracing + if config.flask.get('distributed_tracing_enabled', False): + propagator = HTTPPropagator() + context = propagator.extract(request.headers) + # Only need to activate the new context if something was propagated + if context.trace_id: + pin.tracer.context_provider.activate(context) + + # Default resource is method and path: + # GET / + # POST /save + # We will override this below in `traced_dispatch_request` when we have a `RequestContext` and possibly a url rule + resource = u'{} {}'.format(request.method, request.path) + with pin.tracer.trace('flask.request', service=pin.service, resource=resource, span_type=SpanTypes.WEB) as s: + # set analytics sample rate with global config enabled + sample_rate = config.flask.get_analytics_sample_rate(use_global_config=True) + if sample_rate is not None: + s.set_tag(ANALYTICS_SAMPLE_RATE_KEY, sample_rate) + + s.set_tag(FLASK_VERSION, flask_version_str) + + # Wrap the `start_response` handler to extract response code + # DEV: We tried using `Flask.finalize_request`, which seemed to work, but gave us hell during tests + # DEV: The downside to using `start_response` is we do not have a `Flask.Response` object here, + # only `status_code`, and `headers` to work with + # On the bright side, this works in all versions of Flask (or any WSGI app actually) + def _wrap_start_response(func): + def traced_start_response(status_code, headers): + code, _, _ = status_code.partition(' ') + try: + code = int(code) + except ValueError: + pass + + # Override root span resource name to be ` 404` for 404 requests + # DEV: We do this because we want to make it easier to see all unknown requests together + # Also, we do this to reduce the cardinality on unknown urls + # DEV: If we have an endpoint or url rule tag, then we don't need to do this, + # we still want `GET /product/` grouped together, + # even if it is a 404 + if not s.get_tag(FLASK_ENDPOINT) and not s.get_tag(FLASK_URL_RULE): + s.resource = u'{} {}'.format(request.method, code) + + s.set_tag(http.STATUS_CODE, code) + if 500 <= code < 600: + s.error = 1 + elif code in config.flask.get('extra_error_codes', set()): + s.error = 1 + return func(status_code, headers) + return traced_start_response + start_response = _wrap_start_response(start_response) + + # DEV: We set response status code in `_wrap_start_response` + # DEV: Use `request.base_url` and not `request.url` to keep from leaking any query string parameters + s.set_tag(http.URL, request.base_url) + s.set_tag(http.METHOD, request.method) + if config.flask.trace_query_string: + s.set_tag(http.QUERY_STRING, compat.to_unicode(request.query_string)) + + return wrapped(environ, start_response) + + +def traced_blueprint_register(wrapped, instance, args, kwargs): + """ + Wrapper for flask.blueprints.Blueprint.register + + This wrapper just ensures the blueprint has a pin, either set manually on + itself from the user or inherited from the application + """ + app = kwargs.get('app', args[0]) + # Check if this Blueprint has a pin, otherwise clone the one from the app onto it + pin = Pin.get_from(instance) + if not pin: + pin = Pin.get_from(app) + if pin: + pin.clone().onto(instance) + return wrapped(*args, **kwargs) + + +def traced_blueprint_add_url_rule(wrapped, instance, args, kwargs): + pin = Pin._find(wrapped, instance) + if not pin: + return wrapped(*args, **kwargs) + + def _wrap(rule, endpoint=None, view_func=None, **kwargs): + if view_func: + pin.clone().onto(view_func) + return wrapped(rule, endpoint=endpoint, view_func=view_func, **kwargs) + + return _wrap(*args, **kwargs) + + +def traced_add_url_rule(wrapped, instance, args, kwargs): + """Wrapper for flask.app.Flask.add_url_rule to wrap all views attached to this app""" + def _wrap(rule, endpoint=None, view_func=None, **kwargs): + if view_func: + # TODO: `if hasattr(view_func, 'view_class')` then this was generated from a `flask.views.View` + # should we do something special with these views? Change the name/resource? Add tags? + view_func = wrap_function(instance, view_func, name=endpoint, resource=rule) + + return wrapped(rule, endpoint=endpoint, view_func=view_func, **kwargs) + + return _wrap(*args, **kwargs) + + +def traced_endpoint(wrapped, instance, args, kwargs): + """Wrapper for flask.app.Flask.endpoint to ensure all endpoints are wrapped""" + endpoint = kwargs.get('endpoint', args[0]) + + def _wrapper(func): + # DEV: `wrap_function` will call `func_name(func)` for us + return wrapped(endpoint)(wrap_function(instance, func, resource=endpoint)) + return _wrapper + + +def traced_flask_hook(wrapped, instance, args, kwargs): + """Wrapper for hook functions (before_request, after_request, etc) are properly traced""" + func = kwargs.get('f', args[0]) + return wrapped(wrap_function(instance, func)) + + +def traced_render_template(wrapped, instance, args, kwargs): + """Wrapper for flask.templating.render_template""" + pin = Pin._find(wrapped, instance, get_current_app()) + if not pin or not pin.enabled(): + return wrapped(*args, **kwargs) + + with pin.tracer.trace('flask.render_template', span_type=SpanTypes.TEMPLATE): + return wrapped(*args, **kwargs) + + +def traced_render_template_string(wrapped, instance, args, kwargs): + """Wrapper for flask.templating.render_template_string""" + pin = Pin._find(wrapped, instance, get_current_app()) + if not pin or not pin.enabled(): + return wrapped(*args, **kwargs) + + with pin.tracer.trace('flask.render_template_string', span_type=SpanTypes.TEMPLATE): + return wrapped(*args, **kwargs) + + +def traced_render(wrapped, instance, args, kwargs): + """ + Wrapper for flask.templating._render + + This wrapper is used for setting template tags on the span. + + This method is called for render_template or render_template_string + """ + pin = Pin._find(wrapped, instance, get_current_app()) + # DEV: `get_current_span` will verify `pin` is valid and enabled first + span = get_current_span(pin) + if not span: + return wrapped(*args, **kwargs) + + def _wrap(template, context, app): + name = getattr(template, 'name', None) or config.flask.get('template_default_name') + span.resource = name + span.set_tag('flask.template_name', name) + return wrapped(*args, **kwargs) + return _wrap(*args, **kwargs) + + +def traced_register_error_handler(wrapped, instance, args, kwargs): + """Wrapper to trace all functions registered with flask.app.register_error_handler""" + def _wrap(key, code_or_exception, f): + return wrapped(key, code_or_exception, wrap_function(instance, f)) + return _wrap(*args, **kwargs) + + +def request_tracer(name): + @with_instance_pin + def _traced_request(pin, wrapped, instance, args, kwargs): + """ + Wrapper to trace a Flask function while trying to extract endpoint information + (endpoint, url_rule, view_args, etc) + + This wrapper will add identifier tags to the current span from `flask.app.Flask.wsgi_app`. + """ + span = get_current_span(pin) + if not span: + return wrapped(*args, **kwargs) + + try: + request = flask._request_ctx_stack.top.request + + # DEV: This name will include the blueprint name as well (e.g. `bp.index`) + if not span.get_tag(FLASK_ENDPOINT) and request.endpoint: + span.resource = u'{} {}'.format(request.method, request.endpoint) + span.set_tag(FLASK_ENDPOINT, request.endpoint) + + if not span.get_tag(FLASK_URL_RULE) and request.url_rule and request.url_rule.rule: + span.resource = u'{} {}'.format(request.method, request.url_rule.rule) + span.set_tag(FLASK_URL_RULE, request.url_rule.rule) + + if not span.get_tag(FLASK_VIEW_ARGS) and request.view_args and config.flask.get('collect_view_args'): + for k, v in request.view_args.items(): + span.set_tag(u'{}.{}'.format(FLASK_VIEW_ARGS, k), v) + except Exception: + log.debug('failed to set tags for "flask.request" span', exc_info=True) + + with pin.tracer.trace('flask.{}'.format(name), service=pin.service): + return wrapped(*args, **kwargs) + return _traced_request + + +def traced_signal_receivers_for(signal): + """Wrapper for flask.signals.{signal}.receivers_for to ensure all signal receivers are traced""" + def outer(wrapped, instance, args, kwargs): + sender = kwargs.get('sender', args[0]) + # See if they gave us the flask.app.Flask as the sender + app = None + if isinstance(sender, flask.Flask): + app = sender + for receiver in wrapped(*args, **kwargs): + yield wrap_signal(app, signal, receiver) + return outer + + +def traced_jsonify(wrapped, instance, args, kwargs): + pin = Pin._find(wrapped, instance, get_current_app()) + if not pin or not pin.enabled(): + return wrapped(*args, **kwargs) + + with pin.tracer.trace('flask.jsonify'): + return wrapped(*args, **kwargs) diff --git a/ddtrace/contrib/flask/wrappers.py b/ddtrace/contrib/flask/wrappers.py new file mode 100644 index 0000000000..e49426225c --- /dev/null +++ b/ddtrace/contrib/flask/wrappers.py @@ -0,0 +1,46 @@ +from ddtrace.vendor.wrapt import function_wrapper + +from ...pin import Pin +from ...utils.importlib import func_name +from .helpers import get_current_app + + +def wrap_function(instance, func, name=None, resource=None): + """ + Helper function to wrap common flask.app.Flask methods. + + This helper will first ensure that a Pin is available and enabled before tracing + """ + if not name: + name = func_name(func) + + @function_wrapper + def trace_func(wrapped, _instance, args, kwargs): + pin = Pin._find(wrapped, _instance, instance, get_current_app()) + if not pin or not pin.enabled(): + return wrapped(*args, **kwargs) + with pin.tracer.trace(name, service=pin.service, resource=resource): + return wrapped(*args, **kwargs) + + return trace_func(func) + + +def wrap_signal(app, signal, func): + """ + Helper used to wrap signal handlers + + We will attempt to find the pin attached to the flask.app.Flask app + """ + name = func_name(func) + + @function_wrapper + def trace_func(wrapped, instance, args, kwargs): + pin = Pin._find(wrapped, instance, app, get_current_app()) + if not pin or not pin.enabled(): + return wrapped(*args, **kwargs) + + with pin.tracer.trace(name, service=pin.service) as span: + span.set_tag('flask.signal', signal) + return wrapped(*args, **kwargs) + + return trace_func(func) diff --git a/ddtrace/contrib/flask_cache/__init__.py b/ddtrace/contrib/flask_cache/__init__.py new file mode 100644 index 0000000000..d8cfe3036f --- /dev/null +++ b/ddtrace/contrib/flask_cache/__init__.py @@ -0,0 +1,44 @@ +""" +The flask cache tracer will track any access to a cache backend. +You can use this tracer together with the Flask tracer middleware. + +To install the tracer, ``from ddtrace import tracer`` needs to be added:: + + from ddtrace import tracer + from ddtrace.contrib.flask_cache import get_traced_cache + +and the tracer needs to be initialized:: + + Cache = get_traced_cache(tracer, service='my-flask-cache-app') + +Here is the end result, in a sample app:: + + from flask import Flask + + from ddtrace import tracer + from ddtrace.contrib.flask_cache import get_traced_cache + + app = Flask(__name__) + + # get the traced Cache class + Cache = get_traced_cache(tracer, service='my-flask-cache-app') + + # use the Cache as usual with your preferred CACHE_TYPE + cache = Cache(app, config={'CACHE_TYPE': 'simple'}) + + def counter(): + # this access is traced + conn_counter = cache.get("conn_counter") + +""" + +from ...utils.importlib import require_modules + + +required_modules = ['flask_cache'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .tracers import get_traced_cache + + __all__ = ['get_traced_cache'] diff --git a/ddtrace/contrib/flask_cache/tracers.py b/ddtrace/contrib/flask_cache/tracers.py new file mode 100644 index 0000000000..31c7ea9b22 --- /dev/null +++ b/ddtrace/contrib/flask_cache/tracers.py @@ -0,0 +1,146 @@ +""" +Datadog trace code for flask_cache +""" + +# stdlib +import logging + +# project +from .utils import _extract_conn_tags, _resource_from_cache_prefix +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from ...ext import SpanTypes +from ...settings import config + +# 3rd party +from flask.ext.cache import Cache + + +log = logging.Logger(__name__) + +DEFAULT_SERVICE = 'flask-cache' + +# standard tags +COMMAND_KEY = 'flask_cache.key' +CACHE_BACKEND = 'flask_cache.backend' +CONTACT_POINTS = 'flask_cache.contact_points' + + +def get_traced_cache(ddtracer, service=DEFAULT_SERVICE, meta=None): + """ + Return a traced Cache object that behaves exactly as the ``flask.ext.cache.Cache class`` + """ + + class TracedCache(Cache): + """ + Traced cache backend that monitors any operations done by flask_cache. Observed actions are: + * get, set, add, delete, clear + * all ``many_`` operations + """ + _datadog_tracer = ddtracer + _datadog_service = service + _datadog_meta = meta + + def __trace(self, cmd): + """ + Start a tracing with default attributes and tags + """ + # create a new span + s = self._datadog_tracer.trace( + cmd, + span_type=SpanTypes.CACHE, + service=self._datadog_service + ) + # set span tags + s.set_tag(CACHE_BACKEND, self.config.get('CACHE_TYPE')) + s.set_tags(self._datadog_meta) + # set analytics sample rate + s.set_tag( + ANALYTICS_SAMPLE_RATE_KEY, + config.flask_cache.get_analytics_sample_rate() + ) + # add connection meta if there is one + if getattr(self.cache, '_client', None): + try: + s.set_tags(_extract_conn_tags(self.cache._client)) + except Exception: + log.debug('error parsing connection tags', exc_info=True) + + return s + + def get(self, *args, **kwargs): + """ + Track ``get`` operation + """ + with self.__trace('flask_cache.cmd') as span: + span.resource = _resource_from_cache_prefix('GET', self.config) + if len(args) > 0: + span.set_tag(COMMAND_KEY, args[0]) + return super(TracedCache, self).get(*args, **kwargs) + + def set(self, *args, **kwargs): + """ + Track ``set`` operation + """ + with self.__trace('flask_cache.cmd') as span: + span.resource = _resource_from_cache_prefix('SET', self.config) + if len(args) > 0: + span.set_tag(COMMAND_KEY, args[0]) + return super(TracedCache, self).set(*args, **kwargs) + + def add(self, *args, **kwargs): + """ + Track ``add`` operation + """ + with self.__trace('flask_cache.cmd') as span: + span.resource = _resource_from_cache_prefix('ADD', self.config) + if len(args) > 0: + span.set_tag(COMMAND_KEY, args[0]) + return super(TracedCache, self).add(*args, **kwargs) + + def delete(self, *args, **kwargs): + """ + Track ``delete`` operation + """ + with self.__trace('flask_cache.cmd') as span: + span.resource = _resource_from_cache_prefix('DELETE', self.config) + if len(args) > 0: + span.set_tag(COMMAND_KEY, args[0]) + return super(TracedCache, self).delete(*args, **kwargs) + + def delete_many(self, *args, **kwargs): + """ + Track ``delete_many`` operation + """ + with self.__trace('flask_cache.cmd') as span: + span.resource = _resource_from_cache_prefix('DELETE_MANY', self.config) + span.set_tag(COMMAND_KEY, list(args)) + return super(TracedCache, self).delete_many(*args, **kwargs) + + def clear(self, *args, **kwargs): + """ + Track ``clear`` operation + """ + with self.__trace('flask_cache.cmd') as span: + span.resource = _resource_from_cache_prefix('CLEAR', self.config) + return super(TracedCache, self).clear(*args, **kwargs) + + def get_many(self, *args, **kwargs): + """ + Track ``get_many`` operation + """ + with self.__trace('flask_cache.cmd') as span: + span.resource = _resource_from_cache_prefix('GET_MANY', self.config) + span.set_tag(COMMAND_KEY, list(args)) + return super(TracedCache, self).get_many(*args, **kwargs) + + def set_many(self, *args, **kwargs): + """ + Track ``set_many`` operation + """ + with self.__trace('flask_cache.cmd') as span: + span.resource = _resource_from_cache_prefix('SET_MANY', self.config) + if len(args) > 0: + span.set_tag(COMMAND_KEY, list(args[0].keys())) + return super(TracedCache, self).set_many(*args, **kwargs) + + return TracedCache diff --git a/ddtrace/contrib/flask_cache/utils.py b/ddtrace/contrib/flask_cache/utils.py new file mode 100644 index 0000000000..a2a285d7c1 --- /dev/null +++ b/ddtrace/contrib/flask_cache/utils.py @@ -0,0 +1,46 @@ +# project +from ...ext import net +from ..redis.util import _extract_conn_tags as extract_redis_tags +from ..pylibmc.addrs import parse_addresses + + +def _resource_from_cache_prefix(resource, cache): + """ + Combine the resource name with the cache prefix (if any) + """ + if getattr(cache, 'key_prefix', None): + name = '{} {}'.format(resource, cache.key_prefix) + else: + name = resource + + # enforce lowercase to make the output nicer to read + return name.lower() + + +def _extract_conn_tags(client): + """ + For the given client extracts connection tags + """ + tags = {} + + if hasattr(client, 'servers'): + # Memcached backend supports an address pool + if isinstance(client.servers, list) and len(client.servers) > 0: + # use the first address of the pool as a host because + # the code doesn't expose more information + contact_point = client.servers[0].address + tags[net.TARGET_HOST] = contact_point[0] + tags[net.TARGET_PORT] = contact_point[1] + elif hasattr(client, 'connection_pool'): + # Redis main connection + redis_tags = extract_redis_tags(client.connection_pool.connection_kwargs) + tags.update(**redis_tags) + elif hasattr(client, 'addresses'): + # pylibmc + # FIXME[matt] should we memoize this? + addrs = parse_addresses(client.addresses) + if addrs: + _, host, port, _ = addrs[0] + tags[net.TARGET_PORT] = port + tags[net.TARGET_HOST] = host + return tags diff --git a/ddtrace/contrib/futures/__init__.py b/ddtrace/contrib/futures/__init__.py new file mode 100644 index 0000000000..126c9e4674 --- /dev/null +++ b/ddtrace/contrib/futures/__init__.py @@ -0,0 +1,29 @@ +""" +The ``futures`` integration propagates the current active Tracing Context +between threads. The integration ensures that when operations are executed +in a new thread, that thread can continue the previously generated trace. + +The integration doesn't trace automatically threads execution, so manual +instrumentation or another integration must be activated. Threads propagation +is not enabled by default with the `patch_all()` method and must be activated +as follows:: + + from ddtrace import patch, patch_all + + patch(futures=True) + # or, when instrumenting all libraries + patch_all(futures=True) +""" +from ...utils.importlib import require_modules + + +required_modules = ['concurrent.futures'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .patch import patch, unpatch + + __all__ = [ + 'patch', + 'unpatch', + ] diff --git a/ddtrace/contrib/futures/patch.py b/ddtrace/contrib/futures/patch.py new file mode 100644 index 0000000000..dd9e5d8b2c --- /dev/null +++ b/ddtrace/contrib/futures/patch.py @@ -0,0 +1,24 @@ +from concurrent import futures + +from ddtrace.vendor.wrapt import wrap_function_wrapper as _w + +from .threading import _wrap_submit +from ...utils.wrappers import unwrap as _u + + +def patch(): + """Enables Context Propagation between threads""" + if getattr(futures, '__datadog_patch', False): + return + setattr(futures, '__datadog_patch', True) + + _w('concurrent.futures', 'ThreadPoolExecutor.submit', _wrap_submit) + + +def unpatch(): + """Disables Context Propagation between threads""" + if not getattr(futures, '__datadog_patch', False): + return + setattr(futures, '__datadog_patch', False) + + _u(futures.ThreadPoolExecutor, 'submit') diff --git a/ddtrace/contrib/futures/threading.py b/ddtrace/contrib/futures/threading.py new file mode 100644 index 0000000000..dcaef6ca8a --- /dev/null +++ b/ddtrace/contrib/futures/threading.py @@ -0,0 +1,46 @@ +import ddtrace + + +def _wrap_submit(func, instance, args, kwargs): + """ + Wrap `Executor` method used to submit a work executed in another + thread. This wrapper ensures that a new `Context` is created and + properly propagated using an intermediate function. + """ + # If there isn't a currently active context, then do not create one + # DEV: Calling `.active()` when there isn't an active context will create a new context + # DEV: We need to do this in case they are either: + # - Starting nested futures + # - Starting futures from outside of an existing context + # + # In either of these cases we essentially will propagate the wrong context between futures + # + # The resolution is to not create/propagate a new context if one does not exist, but let the + # future's thread create the context instead. + current_ctx = None + if ddtrace.tracer.context_provider._has_active_context(): + current_ctx = ddtrace.tracer.context_provider.active() + + # If we have a context then make sure we clone it + # DEV: We don't know if the future will finish executing before the parent span finishes + # so we clone to ensure we properly collect/report the future's spans + current_ctx = current_ctx.clone() + + # extract the target function that must be executed in + # a new thread and the `target` arguments + fn = args[0] + fn_args = args[1:] + return func(_wrap_execution, current_ctx, fn, fn_args, kwargs) + + +def _wrap_execution(ctx, fn, args, kwargs): + """ + Intermediate target function that is executed in a new thread; + it receives the original function with arguments and keyword + arguments, including our tracing `Context`. The current context + provider sets the Active context in a thread local storage + variable because it's outside the asynchronous loop. + """ + if ctx is not None: + ddtrace.tracer.context_provider.activate(ctx) + return fn(*args, **kwargs) diff --git a/ddtrace/contrib/gevent/__init__.py b/ddtrace/contrib/gevent/__init__.py new file mode 100644 index 0000000000..5628e737a3 --- /dev/null +++ b/ddtrace/contrib/gevent/__init__.py @@ -0,0 +1,48 @@ +""" +To trace a request in a ``gevent`` environment, configure the tracer to use the greenlet +context provider, rather than the default one that relies on a thread-local storaging. + +This allows the tracer to pick up a transaction exactly where it left off as greenlets +yield the context to another one. + +The simplest way to trace a ``gevent`` application is to configure the tracer and +patch ``gevent`` **before importing** the library:: + + # patch before importing gevent + from ddtrace import patch, tracer + patch(gevent=True) + + # use gevent as usual with or without the monkey module + from gevent import monkey; monkey.patch_thread() + + def my_parent_function(): + with tracer.trace("web.request") as span: + span.service = "web" + gevent.spawn(worker_function) + + def worker_function(): + # then trace its child + with tracer.trace("greenlet.call") as span: + span.service = "greenlet" + ... + + with tracer.trace("greenlet.child_call") as child: + ... +""" +from ...utils.importlib import require_modules + + +required_modules = ['gevent'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .provider import GeventContextProvider + from .patch import patch, unpatch + + context_provider = GeventContextProvider() + + __all__ = [ + 'patch', + 'unpatch', + 'context_provider', + ] diff --git a/ddtrace/contrib/gevent/greenlet.py b/ddtrace/contrib/gevent/greenlet.py new file mode 100644 index 0000000000..3c48e49084 --- /dev/null +++ b/ddtrace/contrib/gevent/greenlet.py @@ -0,0 +1,58 @@ +import gevent +import gevent.pool as gpool + +from .provider import CONTEXT_ATTR + +GEVENT_VERSION = gevent.version_info[0:3] + + +class TracingMixin(object): + def __init__(self, *args, **kwargs): + # get the current Context if available + current_g = gevent.getcurrent() + ctx = getattr(current_g, CONTEXT_ATTR, None) + + # create the Greenlet as usual + super(TracingMixin, self).__init__(*args, **kwargs) + + # the context is always available made exception of the main greenlet + if ctx: + # create a new context that inherits the current active span + new_ctx = ctx.clone() + setattr(self, CONTEXT_ATTR, new_ctx) + + +class TracedGreenlet(TracingMixin, gevent.Greenlet): + """ + ``Greenlet`` class that is used to replace the original ``gevent`` + class. This class is supposed to do ``Context`` replacing operation, so + that any greenlet inherits the context from the parent Greenlet. + When a new greenlet is spawned from the main greenlet, a new instance + of ``Context`` is created. The main greenlet is not affected by this behavior. + + There is no need to inherit this class to create or optimize greenlets + instances, because this class replaces ``gevent.greenlet.Greenlet`` + through the ``patch()`` method. After the patch, extending the gevent + ``Greenlet`` class means extending automatically ``TracedGreenlet``. + """ + def __init__(self, *args, **kwargs): + super(TracedGreenlet, self).__init__(*args, **kwargs) + + +class TracedIMapUnordered(TracingMixin, gpool.IMapUnordered): + def __init__(self, *args, **kwargs): + super(TracedIMapUnordered, self).__init__(*args, **kwargs) + + +if GEVENT_VERSION >= (1, 3) or GEVENT_VERSION < (1, 1): + # For gevent <1.1 and >=1.3, IMap is its own class, so we derive + # from TracingMixin + class TracedIMap(TracingMixin, gpool.IMap): + def __init__(self, *args, **kwargs): + super(TracedIMap, self).__init__(*args, **kwargs) +else: + # For gevent >=1.1 and <1.3, IMap derives from IMapUnordered, so we derive + # from TracedIMapUnordered and get tracing that way + class TracedIMap(gpool.IMap, TracedIMapUnordered): + def __init__(self, *args, **kwargs): + super(TracedIMap, self).__init__(*args, **kwargs) diff --git a/ddtrace/contrib/gevent/patch.py b/ddtrace/contrib/gevent/patch.py new file mode 100644 index 0000000000..d4dc985c22 --- /dev/null +++ b/ddtrace/contrib/gevent/patch.py @@ -0,0 +1,63 @@ +import gevent +import gevent.pool +import ddtrace + +from .greenlet import TracedGreenlet, TracedIMap, TracedIMapUnordered, GEVENT_VERSION +from .provider import GeventContextProvider +from ...provider import DefaultContextProvider + + +__Greenlet = gevent.Greenlet +__IMap = gevent.pool.IMap +__IMapUnordered = gevent.pool.IMapUnordered + + +def patch(): + """ + Patch the gevent module so that all references to the + internal ``Greenlet`` class points to the ``DatadogGreenlet`` + class. + + This action ensures that if a user extends the ``Greenlet`` + class, the ``TracedGreenlet`` is used as a parent class. + """ + _replace(TracedGreenlet, TracedIMap, TracedIMapUnordered) + ddtrace.tracer.configure(context_provider=GeventContextProvider()) + + +def unpatch(): + """ + Restore the original ``Greenlet``. This function must be invoked + before executing application code, otherwise the ``DatadogGreenlet`` + class may be used during initialization. + """ + _replace(__Greenlet, __IMap, __IMapUnordered) + ddtrace.tracer.configure(context_provider=DefaultContextProvider()) + + +def _replace(g_class, imap_class, imap_unordered_class): + """ + Utility function that replace the gevent Greenlet class with the given one. + """ + # replace the original Greenlet classes with the new one + gevent.greenlet.Greenlet = g_class + + if GEVENT_VERSION >= (1, 3): + # For gevent >= 1.3.0, IMap and IMapUnordered were pulled out of + # gevent.pool and into gevent._imap + gevent._imap.IMap = imap_class + gevent._imap.IMapUnordered = imap_unordered_class + gevent.pool.IMap = gevent._imap.IMap + gevent.pool.IMapUnordered = gevent._imap.IMapUnordered + gevent.pool.Greenlet = gevent.greenlet.Greenlet + else: + # For gevent < 1.3, only patching of gevent.pool classes necessary + gevent.pool.IMap = imap_class + gevent.pool.IMapUnordered = imap_unordered_class + + gevent.pool.Group.greenlet_class = g_class + + # replace gevent shortcuts + gevent.Greenlet = gevent.greenlet.Greenlet + gevent.spawn = gevent.greenlet.Greenlet.spawn + gevent.spawn_later = gevent.greenlet.Greenlet.spawn_later diff --git a/ddtrace/contrib/gevent/provider.py b/ddtrace/contrib/gevent/provider.py new file mode 100644 index 0000000000..ebae325e30 --- /dev/null +++ b/ddtrace/contrib/gevent/provider.py @@ -0,0 +1,55 @@ +import gevent + +from ...context import Context +from ...provider import BaseContextProvider + + +# Greenlet attribute used to set/get the Context instance +CONTEXT_ATTR = '__datadog_context' + + +class GeventContextProvider(BaseContextProvider): + """ + Context provider that retrieves all contexts for the current asynchronous + execution. It must be used in asynchronous programming that relies + in the ``gevent`` library. Framework instrumentation that uses the + gevent WSGI server (or gevent in general), can use this provider. + """ + def _get_current_context(self): + """Helper to get the current context from the current greenlet""" + current_g = gevent.getcurrent() + if current_g is not None: + return getattr(current_g, CONTEXT_ATTR, None) + return None + + def _has_active_context(self): + """Helper to determine if we have a currently active context""" + return self._get_current_context() is not None + + def activate(self, context): + """Sets the scoped ``Context`` for the current running ``Greenlet``. + """ + current_g = gevent.getcurrent() + if current_g is not None: + setattr(current_g, CONTEXT_ATTR, context) + return context + + def active(self): + """ + Returns the scoped ``Context`` for this execution flow. The ``Context`` + uses the ``Greenlet`` class as a carrier, and everytime a greenlet + is created it receives the "parent" context. + """ + ctx = self._get_current_context() + if ctx is not None: + # return the active Context for this greenlet (if any) + return ctx + + # the Greenlet doesn't have a Context so it's created and attached + # even to the main greenlet. This is required in Distributed Tracing + # when a new arbitrary Context is provided. + current_g = gevent.getcurrent() + if current_g: + ctx = Context() + setattr(current_g, CONTEXT_ATTR, ctx) + return ctx diff --git a/ddtrace/contrib/grpc/__init__.py b/ddtrace/contrib/grpc/__init__.py new file mode 100644 index 0000000000..3d6876e198 --- /dev/null +++ b/ddtrace/contrib/grpc/__init__.py @@ -0,0 +1,57 @@ +""" +The gRPC integration traces the client and server using interceptor pattern. + +gRPC will be automatically instrumented with ``patch_all``, or when using +the ``ddtrace-run`` command. +gRPC is instrumented on import. To instrument gRPC manually use the +``patch`` function.:: + + import grpc + from ddtrace import patch + patch(grpc=True) + + # use grpc like usual + +To configure the gRPC integration on an per-channel basis use the +``Pin`` API:: + + import grpc + from ddtrace import Pin, patch, Tracer + + patch(grpc=True) + custom_tracer = Tracer() + + # override the pin on the client + Pin.override(grpc.Channel, service='mygrpc', tracer=custom_tracer) + with grpc.insecure_channel('localhost:50051') as channel: + # create stubs and send requests + pass + +To configure the gRPC integration on the server use the ``Pin`` API:: + + import grpc + from grpc.framework.foundation import logging_pool + + from ddtrace import Pin, patch, Tracer + + patch(grpc=True) + custom_tracer = Tracer() + + # override the pin on the server + Pin.override(grpc.Server, service='mygrpc', tracer=custom_tracer) + server = grpc.server(logging_pool.pool(2)) + server.add_insecure_port('localhost:50051') + add_MyServicer_to_server(MyServicer(), server) + server.start() +""" + + +from ...utils.importlib import require_modules + +required_modules = ['grpc'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .patch import patch, unpatch + + __all__ = ['patch', 'unpatch'] diff --git a/ddtrace/contrib/grpc/client_interceptor.py b/ddtrace/contrib/grpc/client_interceptor.py new file mode 100644 index 0000000000..be1e66efa9 --- /dev/null +++ b/ddtrace/contrib/grpc/client_interceptor.py @@ -0,0 +1,239 @@ +import collections +import grpc +from ddtrace.vendor import wrapt + +from ddtrace import config +from ddtrace.compat import to_unicode +from ddtrace.ext import SpanTypes, errors +from ...internal.logger import get_logger +from ...propagation.http import HTTPPropagator +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from . import constants +from .utils import parse_method_path + + +log = get_logger(__name__) + +# DEV: Follows Python interceptors RFC laid out in +# https://github.com/grpc/proposal/blob/master/L13-python-interceptors.md + +# DEV: __version__ added in v1.21.4 +# https://github.com/grpc/grpc/commit/dd4830eae80143f5b0a9a3a1a024af4cf60e7d02 + + +def create_client_interceptor(pin, host, port): + return _ClientInterceptor(pin, host, port) + + +def intercept_channel(wrapped, instance, args, kwargs): + channel = args[0] + interceptors = args[1:] + if isinstance(getattr(channel, "_interceptor", None), _ClientInterceptor): + dd_interceptor = channel._interceptor + base_channel = getattr(channel, "_channel", None) + if base_channel: + new_channel = wrapped(channel._channel, *interceptors) + return grpc.intercept_channel(new_channel, dd_interceptor) + + return wrapped(*args, **kwargs) + + +class _ClientCallDetails( + collections.namedtuple("_ClientCallDetails", ("method", "timeout", "metadata", "credentials")), + grpc.ClientCallDetails, +): + pass + + +def _future_done_callback(span): + def func(response): + try: + # pull out response code from gRPC response to use both for `grpc.status.code` + # tag and the error type tag if the response is an exception + response_code = response.code() + # cast code to unicode for tags + status_code = to_unicode(response_code) + span.set_tag(constants.GRPC_STATUS_CODE_KEY, status_code) + + if response_code != grpc.StatusCode.OK: + _handle_error(span, response, status_code) + finally: + span.finish() + + return func + + +def _handle_response(span, response): + if isinstance(response, grpc.Future): + response.add_done_callback(_future_done_callback(span)) + + +def _handle_error(span, response_error, status_code): + # response_error should be a grpc.Future and so we expect to have cancelled(), + # exception() and traceback() methods if a computation has resulted in an + # exception being raised + if ( + not callable(getattr(response_error, "cancelled", None)) + and not callable(getattr(response_error, "exception", None)) + and not callable(getattr(response_error, "traceback", None)) + ): + return + + if response_error.cancelled(): + # handle cancelled futures separately to avoid raising grpc.FutureCancelledError + span.error = 1 + exc_val = to_unicode(response_error.details()) + span.set_tag(errors.ERROR_MSG, exc_val) + span.set_tag(errors.ERROR_TYPE, status_code) + return + + exception = response_error.exception() + traceback = response_error.traceback() + + if exception is not None and traceback is not None: + span.error = 1 + if isinstance(exception, grpc.RpcError): + # handle internal gRPC exceptions separately to get status code and + # details as tags properly + exc_val = to_unicode(response_error.details()) + span.set_tag(errors.ERROR_MSG, exc_val) + span.set_tag(errors.ERROR_TYPE, status_code) + span.set_tag(errors.ERROR_STACK, traceback) + else: + exc_type = type(exception) + span.set_exc_info(exc_type, exception, traceback) + status_code = to_unicode(response_error.code()) + + +class _WrappedResponseCallFuture(wrapt.ObjectProxy): + def __init__(self, wrapped, span): + super(_WrappedResponseCallFuture, self).__init__(wrapped) + self._span = span + + def __iter__(self): + return self + + def __next__(self): + try: + return next(self.__wrapped__) + except StopIteration: + # at end of iteration handle response status from wrapped future + _handle_response(self._span, self.__wrapped__) + raise + except grpc.RpcError as rpc_error: + # DEV: grpcio<1.18.0 grpc.RpcError is raised rather than returned as response + # https://github.com/grpc/grpc/commit/8199aff7a66460fbc4e9a82ade2e95ef076fd8f9 + # handle as a response + _handle_response(self._span, rpc_error) + raise + except Exception: + # DEV: added for safety though should not be reached since wrapped response + log.debug("unexpected non-grpc exception raised, closing open span", exc_info=True) + self._span.set_traceback() + self._span.finish() + raise + + def next(self): + return self.__next__() + + +class _ClientInterceptor( + grpc.UnaryUnaryClientInterceptor, + grpc.UnaryStreamClientInterceptor, + grpc.StreamUnaryClientInterceptor, + grpc.StreamStreamClientInterceptor, +): + def __init__(self, pin, host, port): + self._pin = pin + self._host = host + self._port = port + + def _intercept_client_call(self, method_kind, client_call_details): + tracer = self._pin.tracer + + span = tracer.trace( + "grpc", span_type=SpanTypes.GRPC, service=self._pin.service, resource=client_call_details.method, + ) + + # tags for method details + method_path = client_call_details.method + method_package, method_service, method_name = parse_method_path(method_path) + span.set_tag(constants.GRPC_METHOD_PATH_KEY, method_path) + span.set_tag(constants.GRPC_METHOD_PACKAGE_KEY, method_package) + span.set_tag(constants.GRPC_METHOD_SERVICE_KEY, method_service) + span.set_tag(constants.GRPC_METHOD_NAME_KEY, method_name) + span.set_tag(constants.GRPC_METHOD_KIND_KEY, method_kind) + span.set_tag(constants.GRPC_HOST_KEY, self._host) + span.set_tag(constants.GRPC_PORT_KEY, self._port) + span.set_tag(constants.GRPC_SPAN_KIND_KEY, constants.GRPC_SPAN_KIND_VALUE_CLIENT) + + sample_rate = config.grpc.get_analytics_sample_rate() + if sample_rate is not None: + span.set_tag(ANALYTICS_SAMPLE_RATE_KEY, sample_rate) + + # inject tags from pin + if self._pin.tags: + span.set_tags(self._pin.tags) + + # propagate distributed tracing headers if available + headers = {} + if config.grpc.distributed_tracing_enabled: + propagator = HTTPPropagator() + propagator.inject(span.context, headers) + + metadata = [] + if client_call_details.metadata is not None: + metadata = list(client_call_details.metadata) + metadata.extend(headers.items()) + + client_call_details = _ClientCallDetails( + client_call_details.method, client_call_details.timeout, metadata, client_call_details.credentials, + ) + + return span, client_call_details + + def intercept_unary_unary(self, continuation, client_call_details, request): + span, client_call_details = self._intercept_client_call(constants.GRPC_METHOD_KIND_UNARY, client_call_details,) + try: + response = continuation(client_call_details, request) + _handle_response(span, response) + except grpc.RpcError as rpc_error: + # DEV: grpcio<1.18.0 grpc.RpcError is raised rather than returned as response + # https://github.com/grpc/grpc/commit/8199aff7a66460fbc4e9a82ade2e95ef076fd8f9 + # handle as a response + _handle_response(span, rpc_error) + raise + + return response + + def intercept_unary_stream(self, continuation, client_call_details, request): + span, client_call_details = self._intercept_client_call( + constants.GRPC_METHOD_KIND_SERVER_STREAMING, client_call_details, + ) + response_iterator = continuation(client_call_details, request) + response_iterator = _WrappedResponseCallFuture(response_iterator, span) + return response_iterator + + def intercept_stream_unary(self, continuation, client_call_details, request_iterator): + span, client_call_details = self._intercept_client_call( + constants.GRPC_METHOD_KIND_CLIENT_STREAMING, client_call_details, + ) + try: + response = continuation(client_call_details, request_iterator) + _handle_response(span, response) + except grpc.RpcError as rpc_error: + # DEV: grpcio<1.18.0 grpc.RpcError is raised rather than returned as response + # https://github.com/grpc/grpc/commit/8199aff7a66460fbc4e9a82ade2e95ef076fd8f9 + # handle as a response + _handle_response(span, rpc_error) + raise + + return response + + def intercept_stream_stream(self, continuation, client_call_details, request_iterator): + span, client_call_details = self._intercept_client_call( + constants.GRPC_METHOD_KIND_BIDI_STREAMING, client_call_details, + ) + response_iterator = continuation(client_call_details, request_iterator) + response_iterator = _WrappedResponseCallFuture(response_iterator, span) + return response_iterator diff --git a/ddtrace/contrib/grpc/constants.py b/ddtrace/contrib/grpc/constants.py new file mode 100644 index 0000000000..9a11cf81e0 --- /dev/null +++ b/ddtrace/contrib/grpc/constants.py @@ -0,0 +1,24 @@ +import grpc + + +GRPC_PIN_MODULE_SERVER = grpc.Server +GRPC_PIN_MODULE_CLIENT = grpc.Channel +GRPC_METHOD_PATH_KEY = 'grpc.method.path' +GRPC_METHOD_PACKAGE_KEY = 'grpc.method.package' +GRPC_METHOD_SERVICE_KEY = 'grpc.method.service' +GRPC_METHOD_NAME_KEY = 'grpc.method.name' +GRPC_METHOD_KIND_KEY = 'grpc.method.kind' +GRPC_STATUS_CODE_KEY = 'grpc.status.code' +GRPC_REQUEST_METADATA_PREFIX_KEY = 'grpc.request.metadata.' +GRPC_RESPONSE_METADATA_PREFIX_KEY = 'grpc.response.metadata.' +GRPC_HOST_KEY = 'grpc.host' +GRPC_PORT_KEY = 'grpc.port' +GRPC_SPAN_KIND_KEY = 'span.kind' +GRPC_SPAN_KIND_VALUE_CLIENT = 'client' +GRPC_SPAN_KIND_VALUE_SERVER = 'server' +GRPC_METHOD_KIND_UNARY = 'unary' +GRPC_METHOD_KIND_CLIENT_STREAMING = 'client_streaming' +GRPC_METHOD_KIND_SERVER_STREAMING = 'server_streaming' +GRPC_METHOD_KIND_BIDI_STREAMING = 'bidi_streaming' +GRPC_SERVICE_SERVER = 'grpc-server' +GRPC_SERVICE_CLIENT = 'grpc-client' diff --git a/ddtrace/contrib/grpc/patch.py b/ddtrace/contrib/grpc/patch.py new file mode 100644 index 0000000000..0c00c77fe1 --- /dev/null +++ b/ddtrace/contrib/grpc/patch.py @@ -0,0 +1,126 @@ +import grpc +import os + +from ddtrace.vendor.wrapt import wrap_function_wrapper as _w +from ddtrace import config, Pin + +from ...utils.wrappers import unwrap as _u + +from . import constants +from .client_interceptor import create_client_interceptor, intercept_channel +from .server_interceptor import create_server_interceptor + + +config._add('grpc_server', dict( + service_name=os.environ.get('DATADOG_SERVICE_NAME', constants.GRPC_SERVICE_SERVER), + distributed_tracing_enabled=True, +)) + +# TODO[tbutt]: keeping name for client config unchanged to maintain backwards +# compatibility but should change in future +config._add('grpc', dict( + service_name='{}-{}'.format( + os.environ.get('DATADOG_SERVICE_NAME'), constants.GRPC_SERVICE_CLIENT + ) if os.environ.get('DATADOG_SERVICE_NAME') else constants.GRPC_SERVICE_CLIENT, + distributed_tracing_enabled=True, +)) + + +def patch(): + _patch_client() + _patch_server() + + +def unpatch(): + _unpatch_client() + _unpatch_server() + + +def _patch_client(): + if getattr(constants.GRPC_PIN_MODULE_CLIENT, '__datadog_patch', False): + return + setattr(constants.GRPC_PIN_MODULE_CLIENT, '__datadog_patch', True) + + Pin(service=config.grpc.service_name).onto(constants.GRPC_PIN_MODULE_CLIENT) + + _w('grpc', 'insecure_channel', _client_channel_interceptor) + _w('grpc', 'secure_channel', _client_channel_interceptor) + _w('grpc', 'intercept_channel', intercept_channel) + + +def _unpatch_client(): + if not getattr(constants.GRPC_PIN_MODULE_CLIENT, '__datadog_patch', False): + return + setattr(constants.GRPC_PIN_MODULE_CLIENT, '__datadog_patch', False) + + pin = Pin.get_from(constants.GRPC_PIN_MODULE_CLIENT) + if pin: + pin.remove_from(constants.GRPC_PIN_MODULE_CLIENT) + + _u(grpc, 'secure_channel') + _u(grpc, 'insecure_channel') + + +def _patch_server(): + if getattr(constants.GRPC_PIN_MODULE_SERVER, '__datadog_patch', False): + return + setattr(constants.GRPC_PIN_MODULE_SERVER, '__datadog_patch', True) + + Pin(service=config.grpc_server.service_name).onto(constants.GRPC_PIN_MODULE_SERVER) + + _w('grpc', 'server', _server_constructor_interceptor) + + +def _unpatch_server(): + if not getattr(constants.GRPC_PIN_MODULE_SERVER, '__datadog_patch', False): + return + setattr(constants.GRPC_PIN_MODULE_SERVER, '__datadog_patch', False) + + pin = Pin.get_from(constants.GRPC_PIN_MODULE_SERVER) + if pin: + pin.remove_from(constants.GRPC_PIN_MODULE_SERVER) + + _u(grpc, 'server') + + +def _client_channel_interceptor(wrapped, instance, args, kwargs): + channel = wrapped(*args, **kwargs) + + pin = Pin.get_from(constants.GRPC_PIN_MODULE_CLIENT) + if not pin or not pin.enabled(): + return channel + + (host, port) = _parse_target_from_arguments(args, kwargs) + + interceptor_function = create_client_interceptor(pin, host, port) + return grpc.intercept_channel(channel, interceptor_function) + + +def _server_constructor_interceptor(wrapped, instance, args, kwargs): + # DEV: we clone the pin on the grpc module and configure it for the server + # interceptor + + pin = Pin.get_from(constants.GRPC_PIN_MODULE_SERVER) + if not pin or not pin.enabled(): + return wrapped(*args, **kwargs) + + interceptor = create_server_interceptor(pin) + + # DEV: Inject our tracing interceptor first in the list of interceptors + if 'interceptors' in kwargs: + kwargs['interceptors'] = (interceptor,) + tuple(kwargs['interceptors']) + else: + kwargs['interceptors'] = (interceptor,) + + return wrapped(*args, **kwargs) + + +def _parse_target_from_arguments(args, kwargs): + if 'target' in kwargs: + target = kwargs['target'] + else: + target = args[0] + + split = target.rsplit(':', 2) + + return (split[0], split[1] if len(split) > 1 else None) diff --git a/ddtrace/contrib/grpc/server_interceptor.py b/ddtrace/contrib/grpc/server_interceptor.py new file mode 100644 index 0000000000..dbce643543 --- /dev/null +++ b/ddtrace/contrib/grpc/server_interceptor.py @@ -0,0 +1,146 @@ +import grpc +from ddtrace.vendor import wrapt + +from ddtrace import config +from ddtrace.ext import errors +from ddtrace.compat import to_unicode + +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from ...ext import SpanTypes +from ...propagation.http import HTTPPropagator +from . import constants +from .utils import parse_method_path + + +def create_server_interceptor(pin): + def interceptor_function(continuation, handler_call_details): + if not pin.enabled: + return continuation(handler_call_details) + + rpc_method_handler = continuation(handler_call_details) + return _TracedRpcMethodHandler(pin, handler_call_details, rpc_method_handler) + + return _ServerInterceptor(interceptor_function) + + +def _handle_server_exception(server_context, span): + if server_context is not None and \ + hasattr(server_context, '_state') and \ + server_context._state is not None: + code = to_unicode(server_context._state.code) + details = to_unicode(server_context._state.details) + span.error = 1 + span.set_tag(errors.ERROR_MSG, details) + span.set_tag(errors.ERROR_TYPE, code) + + +def _wrap_response_iterator(response_iterator, server_context, span): + try: + for response in response_iterator: + yield response + except Exception: + span.set_traceback() + _handle_server_exception(server_context, span) + raise + finally: + span.finish() + + +class _TracedRpcMethodHandler(wrapt.ObjectProxy): + def __init__(self, pin, handler_call_details, wrapped): + super(_TracedRpcMethodHandler, self).__init__(wrapped) + self._pin = pin + self._handler_call_details = handler_call_details + + def _fn(self, method_kind, behavior, args, kwargs): + if config.grpc_server.distributed_tracing_enabled: + headers = dict(self._handler_call_details.invocation_metadata) + propagator = HTTPPropagator() + context = propagator.extract(headers) + + if context.trace_id: + self._pin.tracer.context_provider.activate(context) + + tracer = self._pin.tracer + + span = tracer.trace( + 'grpc', + span_type=SpanTypes.GRPC, + service=self._pin.service, + resource=self._handler_call_details.method, + ) + + method_path = self._handler_call_details.method + method_package, method_service, method_name = parse_method_path(method_path) + span.set_tag(constants.GRPC_METHOD_PATH_KEY, method_path) + span.set_tag(constants.GRPC_METHOD_PACKAGE_KEY, method_package) + span.set_tag(constants.GRPC_METHOD_SERVICE_KEY, method_service) + span.set_tag(constants.GRPC_METHOD_NAME_KEY, method_name) + span.set_tag(constants.GRPC_METHOD_KIND_KEY, method_kind) + span.set_tag(constants.GRPC_SPAN_KIND_KEY, constants.GRPC_SPAN_KIND_VALUE_SERVER) + + sample_rate = config.grpc_server.get_analytics_sample_rate() + if sample_rate is not None: + span.set_tag(ANALYTICS_SAMPLE_RATE_KEY, sample_rate) + + # access server context by taking second argument as server context + # if not found, skip using context to tag span with server state information + server_context = args[1] if isinstance(args[1], grpc.ServicerContext) else None + + if self._pin.tags: + span.set_tags(self._pin.tags) + + try: + response_or_iterator = behavior(*args, **kwargs) + + if self.__wrapped__.response_streaming: + response_or_iterator = _wrap_response_iterator(response_or_iterator, server_context, span) + except Exception: + span.set_traceback() + _handle_server_exception(server_context, span) + raise + finally: + if not self.__wrapped__.response_streaming: + span.finish() + + return response_or_iterator + + def unary_unary(self, *args, **kwargs): + return self._fn( + constants.GRPC_METHOD_KIND_UNARY, + self.__wrapped__.unary_unary, + args, + kwargs + ) + + def unary_stream(self, *args, **kwargs): + return self._fn( + constants.GRPC_METHOD_KIND_SERVER_STREAMING, + self.__wrapped__.unary_stream, + args, + kwargs + ) + + def stream_unary(self, *args, **kwargs): + return self._fn( + constants.GRPC_METHOD_KIND_CLIENT_STREAMING, + self.__wrapped__.stream_unary, + args, + kwargs + ) + + def stream_stream(self, *args, **kwargs): + return self._fn( + constants.GRPC_METHOD_KIND_BIDI_STREAMING, + self.__wrapped__.stream_stream, + args, + kwargs + ) + + +class _ServerInterceptor(grpc.ServerInterceptor): + def __init__(self, interceptor_function): + self._fn = interceptor_function + + def intercept_service(self, continuation, handler_call_details): + return self._fn(continuation, handler_call_details) diff --git a/ddtrace/contrib/grpc/utils.py b/ddtrace/contrib/grpc/utils.py new file mode 100644 index 0000000000..568d118c25 --- /dev/null +++ b/ddtrace/contrib/grpc/utils.py @@ -0,0 +1,12 @@ +def parse_method_path(method_path): + """ Returns (package, service, method) tuple from parsing method path """ + # unpack method path based on "/{package}.{service}/{method}" + # first remove leading "/" as unnecessary + package_service, method_name = method_path.lstrip('/').rsplit('/', 1) + + # {package} is optional + package_service = package_service.rsplit('.', 1) + if len(package_service) == 2: + return package_service[0], package_service[1], method_name + + return None, package_service[0], method_name diff --git a/ddtrace/contrib/httplib/__init__.py b/ddtrace/contrib/httplib/__init__.py new file mode 100644 index 0000000000..0d7883f639 --- /dev/null +++ b/ddtrace/contrib/httplib/__init__.py @@ -0,0 +1,33 @@ +""" +Patch the built-in ``httplib``/``http.client`` libraries to trace all HTTP calls. + + +Usage:: + + # Patch all supported modules/functions + from ddtrace import patch + patch(httplib=True) + + # Python 2 + import httplib + import urllib + + resp = urllib.urlopen('http://www.datadog.com/') + + # Python 3 + import http.client + import urllib.request + + resp = urllib.request.urlopen('http://www.datadog.com/') + +``httplib`` spans do not include a default service name. Before HTTP calls are +made, ensure a parent span has been started with a service name to be used for +spans generated from those calls:: + + with tracer.trace('main', service='my-httplib-operation'): + resp = urllib.request.urlopen('http://www.datadog.com/') + +:ref:`Headers tracing ` is supported for this integration. +""" +from .patch import patch, unpatch +__all__ = ['patch', 'unpatch'] diff --git a/ddtrace/contrib/httplib/patch.py b/ddtrace/contrib/httplib/patch.py new file mode 100644 index 0000000000..61297cbd74 --- /dev/null +++ b/ddtrace/contrib/httplib/patch.py @@ -0,0 +1,138 @@ +# Third party +from ddtrace.vendor import wrapt + +# Project +from ...compat import PY2, httplib, parse +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from ...ext import SpanTypes, http as ext_http +from ...http import store_request_headers, store_response_headers +from ...internal.logger import get_logger +from ...pin import Pin +from ...settings import config +from ...utils.wrappers import unwrap as _u + +span_name = 'httplib.request' if PY2 else 'http.client.request' + +log = get_logger(__name__) + + +def _wrap_init(func, instance, args, kwargs): + Pin(app='httplib', service=None).onto(instance) + return func(*args, **kwargs) + + +def _wrap_getresponse(func, instance, args, kwargs): + # Use any attached tracer if available, otherwise use the global tracer + pin = Pin.get_from(instance) + if not pin or not pin.enabled(): + return func(*args, **kwargs) + + resp = None + try: + resp = func(*args, **kwargs) + return resp + finally: + try: + # Get the span attached to this instance, if available + span = getattr(instance, '_datadog_span', None) + if span: + if resp: + span.set_tag(ext_http.STATUS_CODE, resp.status) + span.error = int(500 <= resp.status) + store_response_headers(dict(resp.getheaders()), span, config.httplib) + + span.finish() + delattr(instance, '_datadog_span') + except Exception: + log.debug('error applying request tags', exc_info=True) + + +def _wrap_putrequest(func, instance, args, kwargs): + # Use any attached tracer if available, otherwise use the global tracer + pin = Pin.get_from(instance) + if should_skip_request(pin, instance): + return func(*args, **kwargs) + + try: + # Create a new span and attach to this instance (so we can retrieve/update/close later on the response) + span = pin.tracer.trace(span_name, span_type=SpanTypes.HTTP) + setattr(instance, '_datadog_span', span) + + method, path = args[:2] + scheme = 'https' if isinstance(instance, httplib.HTTPSConnection) else 'http' + port = ':{port}'.format(port=instance.port) + + if (scheme == 'http' and instance.port == 80) or (scheme == 'https' and instance.port == 443): + port = '' + url = '{scheme}://{host}{port}{path}'.format(scheme=scheme, host=instance.host, port=port, path=path) + + # sanitize url + parsed = parse.urlparse(url) + sanitized_url = parse.urlunparse(( + parsed.scheme, + parsed.netloc, + parsed.path, + parsed.params, + None, # drop query + parsed.fragment + )) + + span.set_tag(ext_http.URL, sanitized_url) + span.set_tag(ext_http.METHOD, method) + if config.httplib.trace_query_string: + span.set_tag(ext_http.QUERY_STRING, parsed.query) + + # set analytics sample rate + span.set_tag( + ANALYTICS_SAMPLE_RATE_KEY, + config.httplib.get_analytics_sample_rate() + ) + except Exception: + log.debug('error applying request tags', exc_info=True) + return func(*args, **kwargs) + + +def _wrap_putheader(func, instance, args, kwargs): + span = getattr(instance, '_datadog_span', None) + if span: + store_request_headers({args[0]: args[1]}, span, config.httplib) + + return func(*args, **kwargs) + + +def should_skip_request(pin, request): + """Helper to determine if the provided request should be traced""" + if not pin or not pin.enabled(): + return True + + api = pin.tracer.writer.api + return request.host == api.hostname and request.port == api.port + + +def patch(): + """ patch the built-in urllib/httplib/httplib.client methods for tracing""" + if getattr(httplib, '__datadog_patch', False): + return + setattr(httplib, '__datadog_patch', True) + + # Patch the desired methods + setattr(httplib.HTTPConnection, '__init__', + wrapt.FunctionWrapper(httplib.HTTPConnection.__init__, _wrap_init)) + setattr(httplib.HTTPConnection, 'getresponse', + wrapt.FunctionWrapper(httplib.HTTPConnection.getresponse, _wrap_getresponse)) + setattr(httplib.HTTPConnection, 'putrequest', + wrapt.FunctionWrapper(httplib.HTTPConnection.putrequest, _wrap_putrequest)) + setattr(httplib.HTTPConnection, 'putheader', + wrapt.FunctionWrapper(httplib.HTTPConnection.putheader, _wrap_putheader)) + + +def unpatch(): + """ unpatch any previously patched modules """ + if not getattr(httplib, '__datadog_patch', False): + return + setattr(httplib, '__datadog_patch', False) + + _u(httplib.HTTPConnection, '__init__') + _u(httplib.HTTPConnection, 'getresponse') + _u(httplib.HTTPConnection, 'putrequest') + _u(httplib.HTTPConnection, 'putheader') diff --git a/ddtrace/contrib/jinja2/__init__.py b/ddtrace/contrib/jinja2/__init__.py new file mode 100644 index 0000000000..5a39d248d7 --- /dev/null +++ b/ddtrace/contrib/jinja2/__init__.py @@ -0,0 +1,42 @@ +""" +The ``jinja2`` integration traces templates loading, compilation and rendering. +Auto instrumentation is available using the ``patch``. The following is an example:: + + from ddtrace import patch + from jinja2 import Environment, FileSystemLoader + + patch(jinja2=True) + + env = Environment( + loader=FileSystemLoader("templates") + ) + template = env.get_template('mytemplate.html') + + +The library can be configured globally and per instance, using the Configuration API:: + + from ddtrace import config + + # Change service name globally + config.jinja2['service_name'] = 'jinja-templates' + + # change the service name only for this environment + cfg = config.get_from(env) + cfg['service_name'] = 'jinja-templates' + +By default, the service name is set to None, so it is inherited from the parent span. +If there is no parent span and the service name is not overriden the agent will drop the traces. +""" +from ...utils.importlib import require_modules + + +required_modules = ['jinja2'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .patch import patch, unpatch + + __all__ = [ + 'patch', + 'unpatch', + ] diff --git a/ddtrace/contrib/jinja2/constants.py b/ddtrace/contrib/jinja2/constants.py new file mode 100644 index 0000000000..101c4d144d --- /dev/null +++ b/ddtrace/contrib/jinja2/constants.py @@ -0,0 +1 @@ +DEFAULT_TEMPLATE_NAME = '' diff --git a/ddtrace/contrib/jinja2/patch.py b/ddtrace/contrib/jinja2/patch.py new file mode 100644 index 0000000000..988c33db9e --- /dev/null +++ b/ddtrace/contrib/jinja2/patch.py @@ -0,0 +1,93 @@ +import jinja2 +from ddtrace.vendor.wrapt import wrap_function_wrapper as _w + +from ddtrace import config + +from ...ext import SpanTypes +from ...utils.formats import get_env +from ...pin import Pin +from ...utils.wrappers import unwrap as _u +from .constants import DEFAULT_TEMPLATE_NAME + + +# default settings +config._add('jinja2', { + 'service_name': get_env('jinja2', 'service_name', None), +}) + + +def patch(): + if getattr(jinja2, '__datadog_patch', False): + # already patched + return + setattr(jinja2, '__datadog_patch', True) + Pin( + service=config.jinja2['service_name'], + _config=config.jinja2, + ).onto(jinja2.environment.Environment) + _w(jinja2, 'environment.Template.render', _wrap_render) + _w(jinja2, 'environment.Template.generate', _wrap_render) + _w(jinja2, 'environment.Environment.compile', _wrap_compile) + _w(jinja2, 'environment.Environment._load_template', _wrap_load_template) + + +def unpatch(): + if not getattr(jinja2, '__datadog_patch', False): + return + setattr(jinja2, '__datadog_patch', False) + _u(jinja2.Template, 'render') + _u(jinja2.Template, 'generate') + _u(jinja2.Environment, 'compile') + _u(jinja2.Environment, '_load_template') + + +def _wrap_render(wrapped, instance, args, kwargs): + """Wrap `Template.render()` or `Template.generate()` + """ + pin = Pin.get_from(instance.environment) + if not pin or not pin.enabled(): + return wrapped(*args, **kwargs) + + template_name = instance.name or DEFAULT_TEMPLATE_NAME + with pin.tracer.trace('jinja2.render', pin.service, span_type=SpanTypes.TEMPLATE) as span: + try: + return wrapped(*args, **kwargs) + finally: + span.resource = template_name + span.set_tag('jinja2.template_name', template_name) + + +def _wrap_compile(wrapped, instance, args, kwargs): + pin = Pin.get_from(instance) + if not pin or not pin.enabled(): + return wrapped(*args, **kwargs) + + if len(args) > 1: + template_name = args[1] + else: + template_name = kwargs.get('name', DEFAULT_TEMPLATE_NAME) + + with pin.tracer.trace('jinja2.compile', pin.service, span_type=SpanTypes.TEMPLATE) as span: + try: + return wrapped(*args, **kwargs) + finally: + span.resource = template_name + span.set_tag('jinja2.template_name', template_name) + + +def _wrap_load_template(wrapped, instance, args, kwargs): + pin = Pin.get_from(instance) + if not pin or not pin.enabled(): + return wrapped(*args, **kwargs) + + template_name = kwargs.get('name', args[0]) + with pin.tracer.trace('jinja2.load', pin.service, span_type=SpanTypes.TEMPLATE) as span: + template = None + try: + template = wrapped(*args, **kwargs) + return template + finally: + span.resource = template_name + span.set_tag('jinja2.template_name', template_name) + if template: + span.set_tag('jinja2.template_path', template.filename) diff --git a/ddtrace/contrib/kombu/__init__.py b/ddtrace/contrib/kombu/__init__.py new file mode 100644 index 0000000000..a29639b9b8 --- /dev/null +++ b/ddtrace/contrib/kombu/__init__.py @@ -0,0 +1,43 @@ +"""Instrument kombu to report AMQP messaging. + +``patch_all`` will not automatically patch your Kombu client to make it work, as this would conflict with the +Celery integration. You must specifically request kombu be patched, as in the example below. + +Note: To permit distributed tracing for the kombu integration you must enable the tracer with priority +sampling. Refer to the documentation here: +http://pypi.datadoghq.com/trace/docs/advanced_usage.html#priority-sampling + +Without enabling distributed tracing, spans within a trace generated by the kombu integration might be dropped +without the whole trace being dropped. +:: + + from ddtrace import Pin, patch + import kombu + + # If not patched yet, you can patch kombu specifically + patch(kombu=True) + + # This will report a span with the default settings + conn = kombu.Connection("amqp://guest:guest@127.0.0.1:5672//") + conn.connect() + task_queue = kombu.Queue('tasks', kombu.Exchange('tasks'), routing_key='tasks') + to_publish = {'hello': 'world'} + producer = conn.Producer() + producer.publish(to_publish, + exchange=task_queue.exchange, + routing_key=task_queue.routing_key, + declare=[task_queue]) + + # Use a pin to specify metadata related to this client + Pin.override(producer, service='kombu-consumer') +""" + +from ...utils.importlib import require_modules + +required_modules = ['kombu', 'kombu.messaging'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .patch import patch + + __all__ = ['patch'] diff --git a/ddtrace/contrib/kombu/constants.py b/ddtrace/contrib/kombu/constants.py new file mode 100644 index 0000000000..10a67c5829 --- /dev/null +++ b/ddtrace/contrib/kombu/constants.py @@ -0,0 +1 @@ +DEFAULT_SERVICE = 'kombu' diff --git a/ddtrace/contrib/kombu/patch.py b/ddtrace/contrib/kombu/patch.py new file mode 100644 index 0000000000..a82079f3e0 --- /dev/null +++ b/ddtrace/contrib/kombu/patch.py @@ -0,0 +1,118 @@ +# 3p +import kombu +from ddtrace.vendor import wrapt + +# project +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from ...ext import SpanTypes, kombu as kombux +from ...pin import Pin +from ...propagation.http import HTTPPropagator +from ...settings import config +from ...utils.formats import get_env +from ...utils.wrappers import unwrap + +from .constants import DEFAULT_SERVICE +from .utils import ( + get_exchange_from_args, + get_body_length_from_args, + get_routing_key_from_args, + extract_conn_tags, + HEADER_POS +) + +# kombu default settings +config._add('kombu', { + 'service_name': get_env('kombu', 'service_name', DEFAULT_SERVICE) +}) + +propagator = HTTPPropagator() + + +def patch(): + """Patch the instrumented methods + + This duplicated doesn't look nice. The nicer alternative is to use an ObjectProxy on top + of Kombu. However, it means that any "import kombu.Connection" won't be instrumented. + """ + if getattr(kombu, '_datadog_patch', False): + return + setattr(kombu, '_datadog_patch', True) + + _w = wrapt.wrap_function_wrapper + # We wrap the _publish method because the publish method: + # * defines defaults in its kwargs + # * potentially overrides kwargs with values from self + # * extracts/normalizes things like exchange + _w('kombu', 'Producer._publish', traced_publish) + _w('kombu', 'Consumer.receive', traced_receive) + Pin( + service=config.kombu['service_name'], + app='kombu' + ).onto(kombu.messaging.Producer) + + Pin( + service=config.kombu['service_name'], + app='kombu' + ).onto(kombu.messaging.Consumer) + + +def unpatch(): + if getattr(kombu, '_datadog_patch', False): + setattr(kombu, '_datadog_patch', False) + unwrap(kombu.Producer, '_publish') + unwrap(kombu.Consumer, 'receive') + +# +# tracing functions +# + + +def traced_receive(func, instance, args, kwargs): + pin = Pin.get_from(instance) + if not pin or not pin.enabled(): + return func(*args, **kwargs) + + # Signature only takes 2 args: (body, message) + message = args[1] + context = propagator.extract(message.headers) + # only need to active the new context if something was propagated + if context.trace_id: + pin.tracer.context_provider.activate(context) + with pin.tracer.trace(kombux.RECEIVE_NAME, service=pin.service, span_type=SpanTypes.WORKER) as s: + # run the command + exchange = message.delivery_info['exchange'] + s.resource = exchange + s.set_tag(kombux.EXCHANGE, exchange) + + s.set_tags(extract_conn_tags(message.channel.connection)) + s.set_tag(kombux.ROUTING_KEY, message.delivery_info['routing_key']) + # set analytics sample rate + s.set_tag( + ANALYTICS_SAMPLE_RATE_KEY, + config.kombu.get_analytics_sample_rate() + ) + return func(*args, **kwargs) + + +def traced_publish(func, instance, args, kwargs): + pin = Pin.get_from(instance) + if not pin or not pin.enabled(): + return func(*args, **kwargs) + + with pin.tracer.trace(kombux.PUBLISH_NAME, service=pin.service, span_type=SpanTypes.WORKER) as s: + exchange_name = get_exchange_from_args(args) + s.resource = exchange_name + s.set_tag(kombux.EXCHANGE, exchange_name) + if pin.tags: + s.set_tags(pin.tags) + s.set_tag(kombux.ROUTING_KEY, get_routing_key_from_args(args)) + s.set_tags(extract_conn_tags(instance.channel.connection)) + s.set_metric(kombux.BODY_LEN, get_body_length_from_args(args)) + # set analytics sample rate + s.set_tag( + ANALYTICS_SAMPLE_RATE_KEY, + config.kombu.get_analytics_sample_rate() + ) + # run the command + propagator.inject(s.context, args[HEADER_POS]) + return func(*args, **kwargs) diff --git a/ddtrace/contrib/kombu/utils.py b/ddtrace/contrib/kombu/utils.py new file mode 100644 index 0000000000..af81e0c299 --- /dev/null +++ b/ddtrace/contrib/kombu/utils.py @@ -0,0 +1,47 @@ +""" +Some utils used by the dogtrace kombu integration +""" +from ...ext import kombu as kombux, net + +PUBLISH_BODY_IDX = 0 +PUBLISH_ROUTING_KEY = 6 +PUBLISH_EXCHANGE_IDX = 9 + +HEADER_POS = 4 + + +def extract_conn_tags(connection): + """ Transform kombu conn info into dogtrace metas """ + try: + host, port = connection.host.split(':') + return { + net.TARGET_HOST: host, + net.TARGET_PORT: port, + kombux.VHOST: connection.virtual_host, + } + except AttributeError: + # Unlikely that we don't have .host or .virtual_host but let's not die over it + return {} + + +def get_exchange_from_args(args): + """Extract the exchange + + The publish method extracts the name and hands that off to _publish (what we patch) + """ + + return args[PUBLISH_EXCHANGE_IDX] + + +def get_routing_key_from_args(args): + """Extract the routing key""" + + name = args[PUBLISH_ROUTING_KEY] + return name + + +def get_body_length_from_args(args): + """Extract the length of the body""" + + length = len(args[PUBLISH_BODY_IDX]) + return length diff --git a/ddtrace/contrib/logging/__init__.py b/ddtrace/contrib/logging/__init__.py new file mode 100644 index 0000000000..1882463d30 --- /dev/null +++ b/ddtrace/contrib/logging/__init__.py @@ -0,0 +1,66 @@ +""" +Datadog APM traces can be integrated with Logs by first having the tracing +library patch the standard library ``logging`` module and updating the log +formatter used by an application. This feature enables you to inject the current +trace information into a log entry. + +Before the trace information can be injected into logs, the formatter has to be +updated to include ``dd.trace_id`` and ``dd.span_id`` attributes from the log +record. The integration with Logs occurs as long as the log entry includes +``dd.trace_id=%(dd.trace_id)s`` and ``dd.span_id=%(dd.span_id)s``. + +ddtrace-run +----------- + +When using ``ddtrace-run``, enable patching by setting the environment variable +``DD_LOGS_INJECTION=true``. The logger by default will have a format that +includes trace information:: + + import logging + from ddtrace import tracer + + log = logging.getLogger() + log.level = logging.INFO + + + @tracer.wrap() + def hello(): + log.info('Hello, World!') + + hello() + +Manual Instrumentation +---------------------- + +If you prefer to instrument manually, patch the logging library then update the +log formatter as in the following example:: + + from ddtrace import patch_all; patch_all(logging=True) + import logging + from ddtrace import tracer + + FORMAT = ('%(asctime)s %(levelname)s [%(name)s] [%(filename)s:%(lineno)d] ' + '[dd.trace_id=%(dd.trace_id)s dd.span_id=%(dd.span_id)s] ' + '- %(message)s') + logging.basicConfig(format=FORMAT) + log = logging.getLogger() + log.level = logging.INFO + + + @tracer.wrap() + def hello(): + log.info('Hello, World!') + + hello() +""" + +from ...utils.importlib import require_modules + + +required_modules = ['logging'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .patch import patch, unpatch + + __all__ = ['patch', 'unpatch'] diff --git a/ddtrace/contrib/logging/patch.py b/ddtrace/contrib/logging/patch.py new file mode 100644 index 0000000000..84b6fdc370 --- /dev/null +++ b/ddtrace/contrib/logging/patch.py @@ -0,0 +1,49 @@ +import logging + +from ddtrace import config + +from ...helpers import get_correlation_ids +from ...utils.wrappers import unwrap as _u +from ...vendor.wrapt import wrap_function_wrapper as _w + +RECORD_ATTR_TRACE_ID = 'dd.trace_id' +RECORD_ATTR_SPAN_ID = 'dd.span_id' +RECORD_ATTR_VALUE_NULL = 0 + +config._add('logging', dict( + tracer=None, # by default, override here for custom tracer +)) + + +def _w_makeRecord(func, instance, args, kwargs): + record = func(*args, **kwargs) + + # add correlation identifiers to LogRecord + trace_id, span_id = get_correlation_ids(tracer=config.logging.tracer) + if trace_id and span_id: + setattr(record, RECORD_ATTR_TRACE_ID, trace_id) + setattr(record, RECORD_ATTR_SPAN_ID, span_id) + else: + setattr(record, RECORD_ATTR_TRACE_ID, RECORD_ATTR_VALUE_NULL) + setattr(record, RECORD_ATTR_SPAN_ID, RECORD_ATTR_VALUE_NULL) + + return record + + +def patch(): + """ + Patch ``logging`` module in the Python Standard Library for injection of + tracer information by wrapping the base factory method ``Logger.makeRecord`` + """ + if getattr(logging, '_datadog_patch', False): + return + setattr(logging, '_datadog_patch', True) + + _w(logging.Logger, 'makeRecord', _w_makeRecord) + + +def unpatch(): + if getattr(logging, '_datadog_patch', False): + setattr(logging, '_datadog_patch', False) + + _u(logging.Logger, 'makeRecord') diff --git a/ddtrace/contrib/mako/__init__.py b/ddtrace/contrib/mako/__init__.py new file mode 100644 index 0000000000..d26d44ba49 --- /dev/null +++ b/ddtrace/contrib/mako/__init__.py @@ -0,0 +1,24 @@ +""" +The ``mako`` integration traces templates rendering. +Auto instrumentation is available using the ``patch``. The following is an example:: + + from ddtrace import patch + from mako.template import Template + + patch(mako=True) + + t = Template(filename="index.html") + +""" +from ...utils.importlib import require_modules + +required_modules = ['mako'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .patch import patch, unpatch + + __all__ = [ + 'patch', + 'unpatch', + ] diff --git a/ddtrace/contrib/mako/constants.py b/ddtrace/contrib/mako/constants.py new file mode 100644 index 0000000000..101c4d144d --- /dev/null +++ b/ddtrace/contrib/mako/constants.py @@ -0,0 +1 @@ +DEFAULT_TEMPLATE_NAME = '' diff --git a/ddtrace/contrib/mako/patch.py b/ddtrace/contrib/mako/patch.py new file mode 100644 index 0000000000..5f6da9c2c4 --- /dev/null +++ b/ddtrace/contrib/mako/patch.py @@ -0,0 +1,47 @@ +import mako +from mako.template import Template + +from ...ext import SpanTypes +from ...pin import Pin +from ...utils.importlib import func_name +from ...utils.wrappers import unwrap as _u +from ...vendor.wrapt import wrap_function_wrapper as _w +from .constants import DEFAULT_TEMPLATE_NAME + + +def patch(): + if getattr(mako, '__datadog_patch', False): + # already patched + return + setattr(mako, '__datadog_patch', True) + + Pin(service='mako', app='mako').onto(Template) + + _w(mako, 'template.Template.render', _wrap_render) + _w(mako, 'template.Template.render_unicode', _wrap_render) + _w(mako, 'template.Template.render_context', _wrap_render) + + +def unpatch(): + if not getattr(mako, '__datadog_patch', False): + return + setattr(mako, '__datadog_patch', False) + + _u(mako.template.Template, 'render') + _u(mako.template.Template, 'render_unicode') + _u(mako.template.Template, 'render_context') + + +def _wrap_render(wrapped, instance, args, kwargs): + pin = Pin.get_from(instance) + if not pin or not pin.enabled(): + return wrapped(*args, **kwargs) + + template_name = instance.filename or DEFAULT_TEMPLATE_NAME + with pin.tracer.trace(func_name(wrapped), pin.service, span_type=SpanTypes.TEMPLATE) as span: + try: + template = wrapped(*args, **kwargs) + return template + finally: + span.resource = template_name + span.set_tag('mako.template_name', template_name) diff --git a/ddtrace/contrib/molten/__init__.py b/ddtrace/contrib/molten/__init__.py new file mode 100644 index 0000000000..e8cd134be1 --- /dev/null +++ b/ddtrace/contrib/molten/__init__.py @@ -0,0 +1,53 @@ +""" +The molten web framework is automatically traced by ``ddtrace`` when calling ``patch``:: + + from molten import App, Route + from ddtrace import patch_all; patch_all(molten=True) + + def hello(name: str, age: int) -> str: + return f'Hello {age} year old named {name}!' + app = App(routes=[Route('/hello/{name}/{age}', hello)]) + + +You may also enable molten tracing automatically via ``ddtrace-run``:: + + ddtrace-run python app.py + + +Configuration +~~~~~~~~~~~~~ + +.. py:data:: ddtrace.config.molten['distributed_tracing'] + + Whether to parse distributed tracing headers from requests received by your Molten app. + + Default: ``True`` + +.. py:data:: ddtrace.config.molten['analytics_enabled'] + + Whether to generate APM events in Trace Search & Analytics. + + Can also be enabled with the ``DD_MOLTEN_ANALYTICS_ENABLED`` environment variable. + + Default: ``None`` + +.. py:data:: ddtrace.config.molten['service_name'] + + The service name reported for your Molten app. + + Can also be configured via the ``DD_MOLTEN_SERVICE_NAME`` environment variable. + + Default: ``'molten'`` +""" +from ...utils.importlib import require_modules + +required_modules = ['molten'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from . import patch as _patch + + patch = _patch.patch + unpatch = _patch.unpatch + + __all__ = ['patch', 'unpatch'] diff --git a/ddtrace/contrib/molten/patch.py b/ddtrace/contrib/molten/patch.py new file mode 100644 index 0000000000..967d06899f --- /dev/null +++ b/ddtrace/contrib/molten/patch.py @@ -0,0 +1,169 @@ +from ddtrace.vendor import wrapt +from ddtrace.vendor.wrapt import wrap_function_wrapper as _w + +import molten + +from ... import Pin, config +from ...compat import urlencode +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from ...ext import SpanTypes, http +from ...propagation.http import HTTPPropagator +from ...utils.formats import asbool, get_env +from ...utils.importlib import func_name +from ...utils.wrappers import unwrap as _u +from .wrappers import WrapperComponent, WrapperRenderer, WrapperMiddleware, WrapperRouter, MOLTEN_ROUTE + +MOLTEN_VERSION = tuple(map(int, molten.__version__.split()[0].split('.'))) + +# Configure default configuration +config._add('molten', dict( + service_name=get_env('molten', 'service_name', 'molten'), + app='molten', + distributed_tracing=asbool(get_env('molten', 'distributed_tracing', True)), +)) + + +def patch(): + """Patch the instrumented methods + """ + if getattr(molten, '_datadog_patch', False): + return + setattr(molten, '_datadog_patch', True) + + pin = Pin( + service=config.molten['service_name'], + app=config.molten['app'] + ) + + # add pin to module since many classes use __slots__ + pin.onto(molten) + + _w(molten.BaseApp, '__init__', patch_app_init) + _w(molten.App, '__call__', patch_app_call) + + +def unpatch(): + """Remove instrumentation + """ + if getattr(molten, '_datadog_patch', False): + setattr(molten, '_datadog_patch', False) + + # remove pin + pin = Pin.get_from(molten) + if pin: + pin.remove_from(molten) + + _u(molten.BaseApp, '__init__') + _u(molten.App, '__call__') + _u(molten.Router, 'add_route') + + +def patch_app_call(wrapped, instance, args, kwargs): + """Patch wsgi interface for app + """ + pin = Pin.get_from(molten) + + if not pin or not pin.enabled(): + return wrapped(*args, **kwargs) + + # DEV: This is safe because this is the args for a WSGI handler + # https://www.python.org/dev/peps/pep-3333/ + environ, start_response = args + + request = molten.http.Request.from_environ(environ) + resource = func_name(wrapped) + + # Configure distributed tracing + if config.molten.get('distributed_tracing', True): + propagator = HTTPPropagator() + # request.headers is type Iterable[Tuple[str, str]] + context = propagator.extract(dict(request.headers)) + # Only need to activate the new context if something was propagated + if context.trace_id: + pin.tracer.context_provider.activate(context) + + with pin.tracer.trace('molten.request', service=pin.service, resource=resource, span_type=SpanTypes.WEB) as span: + # set analytics sample rate with global config enabled + span.set_tag( + ANALYTICS_SAMPLE_RATE_KEY, + config.molten.get_analytics_sample_rate(use_global_config=True) + ) + + @wrapt.function_wrapper + def _w_start_response(wrapped, instance, args, kwargs): + """ Patch respond handling to set metadata """ + + pin = Pin.get_from(molten) + if not pin or not pin.enabled(): + return wrapped(*args, **kwargs) + + status, headers, exc_info = args + code, _, _ = status.partition(' ') + + try: + code = int(code) + except ValueError: + pass + + if not span.get_tag(MOLTEN_ROUTE): + # if route never resolve, update root resource + span.resource = u'{} {}'.format(request.method, code) + + span.set_tag(http.STATUS_CODE, code) + + # mark 5xx spans as error + if 500 <= code < 600: + span.error = 1 + + return wrapped(*args, **kwargs) + + # patching for extracting response code + start_response = _w_start_response(start_response) + + span.set_tag(http.METHOD, request.method) + span.set_tag(http.URL, '%s://%s:%s%s' % ( + request.scheme, request.host, request.port, request.path, + )) + if config.molten.trace_query_string: + span.set_tag(http.QUERY_STRING, urlencode(dict(request.params))) + span.set_tag('molten.version', molten.__version__) + return wrapped(environ, start_response, **kwargs) + + +def patch_app_init(wrapped, instance, args, kwargs): + """Patch app initialization of middleware, components and renderers + """ + # allow instance to be initialized before wrapping them + wrapped(*args, **kwargs) + + # add Pin to instance + pin = Pin.get_from(molten) + + if not pin or not pin.enabled(): + return + + # Wrappers here allow us to trace objects without altering class or instance + # attributes, which presents a problem when classes in molten use + # ``__slots__`` + + instance.router = WrapperRouter(instance.router) + + # wrap middleware functions/callables + instance.middleware = [ + WrapperMiddleware(mw) + for mw in instance.middleware + ] + + # wrap components objects within injector + # NOTE: the app instance also contains a list of components but it does not + # appear to be used for anything passing along to the dependency injector + instance.injector.components = [ + WrapperComponent(c) + for c in instance.injector.components + ] + + # but renderers objects + instance.renderers = [ + WrapperRenderer(r) + for r in instance.renderers + ] diff --git a/ddtrace/contrib/molten/wrappers.py b/ddtrace/contrib/molten/wrappers.py new file mode 100644 index 0000000000..db13556530 --- /dev/null +++ b/ddtrace/contrib/molten/wrappers.py @@ -0,0 +1,95 @@ +from ddtrace.vendor import wrapt +import molten + +from ... import Pin +from ...utils.importlib import func_name + +MOLTEN_ROUTE = 'molten.route' + + +def trace_wrapped(resource, wrapped, *args, **kwargs): + pin = Pin.get_from(molten) + if not pin or not pin.enabled(): + return wrapped(*args, **kwargs) + + with pin.tracer.trace(func_name(wrapped), service=pin.service, resource=resource): + return wrapped(*args, **kwargs) + + +def trace_func(resource): + """Trace calls to function using provided resource name + """ + @wrapt.function_wrapper + def _trace_func(wrapped, instance, args, kwargs): + pin = Pin.get_from(molten) + + if not pin or not pin.enabled(): + return wrapped(*args, **kwargs) + + with pin.tracer.trace(func_name(wrapped), service=pin.service, resource=resource): + return wrapped(*args, **kwargs) + + return _trace_func + + +class WrapperComponent(wrapt.ObjectProxy): + """ Tracing of components """ + def can_handle_parameter(self, *args, **kwargs): + func = self.__wrapped__.can_handle_parameter + cname = func_name(self.__wrapped__) + resource = '{}.{}'.format(cname, func.__name__) + return trace_wrapped(resource, func, *args, **kwargs) + + # TODO[tahir]: the signature of a wrapped resolve method causes DIError to + # be thrown since paramter types cannot be determined + + +class WrapperRenderer(wrapt.ObjectProxy): + """ Tracing of renderers """ + def render(self, *args, **kwargs): + func = self.__wrapped__.render + cname = func_name(self.__wrapped__) + resource = '{}.{}'.format(cname, func.__name__) + return trace_wrapped(resource, func, *args, **kwargs) + + +class WrapperMiddleware(wrapt.ObjectProxy): + """ Tracing of callable functional-middleware """ + def __call__(self, *args, **kwargs): + func = self.__wrapped__.__call__ + resource = func_name(self.__wrapped__) + return trace_wrapped(resource, func, *args, **kwargs) + + +class WrapperRouter(wrapt.ObjectProxy): + """ Tracing of router on the way back from a matched route """ + def match(self, *args, **kwargs): + # catch matched route and wrap tracer around its handler and set root span resource + func = self.__wrapped__.match + route_and_params = func(*args, **kwargs) + + pin = Pin.get_from(molten) + if not pin or not pin.enabled(): + return route_and_params + + if route_and_params is not None: + route, params = route_and_params + + route.handler = trace_func(func_name(route.handler))(route.handler) + + # update root span resource while we know the matched route + resource = '{} {}'.format( + route.method, + route.template, + ) + root_span = pin.tracer.current_root_span() + root_span.resource = resource + + # if no root route set make sure we record it based on this resolved + # route + if root_span and not root_span.get_tag(MOLTEN_ROUTE): + root_span.set_tag(MOLTEN_ROUTE, route.name) + + return route, params + + return route_and_params diff --git a/ddtrace/contrib/mongoengine/__init__.py b/ddtrace/contrib/mongoengine/__init__.py new file mode 100644 index 0000000000..384c04ab77 --- /dev/null +++ b/ddtrace/contrib/mongoengine/__init__.py @@ -0,0 +1,29 @@ +"""Instrument mongoengine to report MongoDB queries. + +``patch_all`` will automatically patch your mongoengine connect method to make it work. +:: + + from ddtrace import Pin, patch + import mongoengine + + # If not patched yet, you can patch mongoengine specifically + patch(mongoengine=True) + + # At that point, mongoengine is instrumented with the default settings + mongoengine.connect('db', alias='default') + + # Use a pin to specify metadata related to this client + client = mongoengine.connect('db', alias='master') + Pin.override(client, service="mongo-master") +""" + +from ...utils.importlib import require_modules + + +required_modules = ['mongoengine'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .patch import patch, trace_mongoengine + + __all__ = ['patch', 'trace_mongoengine'] diff --git a/ddtrace/contrib/mongoengine/patch.py b/ddtrace/contrib/mongoengine/patch.py new file mode 100644 index 0000000000..7faa72d4cd --- /dev/null +++ b/ddtrace/contrib/mongoengine/patch.py @@ -0,0 +1,20 @@ +import mongoengine + +from .trace import WrappedConnect +from ...utils.deprecation import deprecated + +# Original connect function +_connect = mongoengine.connect + + +def patch(): + setattr(mongoengine, 'connect', WrappedConnect(_connect)) + + +def unpatch(): + setattr(mongoengine, 'connect', _connect) + + +@deprecated(message='Use patching instead (see the docs).', version='1.0.0') +def trace_mongoengine(*args, **kwargs): + return _connect diff --git a/ddtrace/contrib/mongoengine/trace.py b/ddtrace/contrib/mongoengine/trace.py new file mode 100644 index 0000000000..e219bf9930 --- /dev/null +++ b/ddtrace/contrib/mongoengine/trace.py @@ -0,0 +1,32 @@ + +# 3p +from ddtrace.vendor import wrapt + +# project +import ddtrace +from ddtrace.ext import mongo as mongox +from ddtrace.contrib.pymongo.client import TracedMongoClient + + +# TODO(Benjamin): we should instrument register_connection instead, because more generic +# We should also extract the "alias" attribute and set it as a meta +class WrappedConnect(wrapt.ObjectProxy): + """ WrappedConnect wraps mongoengines 'connect' function to ensure + that all returned connections are wrapped for tracing. + """ + + def __init__(self, connect): + super(WrappedConnect, self).__init__(connect) + ddtrace.Pin(service=mongox.SERVICE, tracer=ddtrace.tracer).onto(self) + + def __call__(self, *args, **kwargs): + client = self.__wrapped__(*args, **kwargs) + pin = ddtrace.Pin.get_from(self) + if pin: + # mongoengine uses pymongo internally, so we can just piggyback on the + # existing pymongo integration and make sure that the connections it + # uses internally are traced. + client = TracedMongoClient(client) + ddtrace.Pin(service=pin.service, tracer=pin.tracer).onto(client) + + return client diff --git a/ddtrace/contrib/mysql/__init__.py b/ddtrace/contrib/mysql/__init__.py new file mode 100644 index 0000000000..422d7ad943 --- /dev/null +++ b/ddtrace/contrib/mysql/__init__.py @@ -0,0 +1,39 @@ +"""Instrument mysql to report MySQL queries. + +``patch_all`` will automatically patch your mysql connection to make it work. + +:: + + # Make sure to import mysql.connector and not the 'connect' function, + # otherwise you won't have access to the patched version + from ddtrace import Pin, patch + import mysql.connector + + # If not patched yet, you can patch mysql specifically + patch(mysql=True) + + # This will report a span with the default settings + conn = mysql.connector.connect(user="alice", password="b0b", host="localhost", port=3306, database="test") + cursor = conn.cursor() + cursor.execute("SELECT 6*7 AS the_answer;") + + # Use a pin to specify metadata related to this connection + Pin.override(conn, service='mysql-users') + +Only the default full-Python integration works. The binary C connector, +provided by _mysql_connector, is not supported yet. + +Help on mysql.connector can be found on: +https://dev.mysql.com/doc/connector-python/en/ +""" +from ...utils.importlib import require_modules + +# check `mysql-connector` availability +required_modules = ['mysql.connector'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .patch import patch + from .tracers import get_traced_mysql_connection + + __all__ = ['get_traced_mysql_connection', 'patch'] diff --git a/ddtrace/contrib/mysql/patch.py b/ddtrace/contrib/mysql/patch.py new file mode 100644 index 0000000000..15a0b1aa51 --- /dev/null +++ b/ddtrace/contrib/mysql/patch.py @@ -0,0 +1,46 @@ +# 3p +from ddtrace.vendor import wrapt +import mysql.connector + +# project +from ddtrace import Pin +from ddtrace.contrib.dbapi import TracedConnection +from ...ext import net, db + + +CONN_ATTR_BY_TAG = { + net.TARGET_HOST: 'server_host', + net.TARGET_PORT: 'server_port', + db.USER: 'user', + db.NAME: 'database', +} + + +def patch(): + wrapt.wrap_function_wrapper('mysql.connector', 'connect', _connect) + # `Connect` is an alias for `connect`, patch it too + if hasattr(mysql.connector, 'Connect'): + mysql.connector.Connect = mysql.connector.connect + + +def unpatch(): + if isinstance(mysql.connector.connect, wrapt.ObjectProxy): + mysql.connector.connect = mysql.connector.connect.__wrapped__ + if hasattr(mysql.connector, 'Connect'): + mysql.connector.Connect = mysql.connector.connect + + +def _connect(func, instance, args, kwargs): + conn = func(*args, **kwargs) + return patch_conn(conn) + + +def patch_conn(conn): + + tags = {t: getattr(conn, a) for t, a in CONN_ATTR_BY_TAG.items() if getattr(conn, a, '') != ''} + pin = Pin(service='mysql', app='mysql', tags=tags) + + # grab the metadata from the conn + wrapped = TracedConnection(conn, pin=pin) + pin.onto(wrapped) + return wrapped diff --git a/ddtrace/contrib/mysql/tracers.py b/ddtrace/contrib/mysql/tracers.py new file mode 100644 index 0000000000..14640210bf --- /dev/null +++ b/ddtrace/contrib/mysql/tracers.py @@ -0,0 +1,8 @@ +import mysql.connector + +from ...utils.deprecation import deprecated + + +@deprecated(message='Use patching instead (see the docs).', version='1.0.0') +def get_traced_mysql_connection(*args, **kwargs): + return mysql.connector.MySQLConnection diff --git a/ddtrace/contrib/mysqldb/__init__.py b/ddtrace/contrib/mysqldb/__init__.py new file mode 100644 index 0000000000..3219a189c3 --- /dev/null +++ b/ddtrace/contrib/mysqldb/__init__.py @@ -0,0 +1,38 @@ +"""Instrument mysqlclient / MySQL-python to report MySQL queries. + +``patch_all`` will automatically patch your mysql connection to make it work. + +:: + + # Make sure to import MySQLdb and not the 'connect' function, + # otherwise you won't have access to the patched version + from ddtrace import Pin, patch + import MySQLdb + + # If not patched yet, you can patch mysqldb specifically + patch(mysqldb=True) + + # This will report a span with the default settings + conn = MySQLdb.connect(user="alice", passwd="b0b", host="localhost", port=3306, db="test") + cursor = conn.cursor() + cursor.execute("SELECT 6*7 AS the_answer;") + + # Use a pin to specify metadata related to this connection + Pin.override(conn, service='mysql-users') + +This package works for mysqlclient or MySQL-python. Only the default +full-Python integration works. The binary C connector provided by +_mysql is not yet supported. + +Help on mysqlclient can be found on: +https://mysqlclient.readthedocs.io/ +""" +from ...utils.importlib import require_modules + +required_modules = ['MySQLdb'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .patch import patch + + __all__ = ['patch'] diff --git a/ddtrace/contrib/mysqldb/patch.py b/ddtrace/contrib/mysqldb/patch.py new file mode 100644 index 0000000000..ac6e0e1d4e --- /dev/null +++ b/ddtrace/contrib/mysqldb/patch.py @@ -0,0 +1,63 @@ +# 3p +import MySQLdb + +from ddtrace.vendor.wrapt import wrap_function_wrapper as _w + +# project +from ddtrace import Pin +from ddtrace.contrib.dbapi import TracedConnection + +from ...ext import net, db +from ...utils.wrappers import unwrap as _u + +KWPOS_BY_TAG = { + net.TARGET_HOST: ('host', 0), + db.USER: ('user', 1), + db.NAME: ('db', 3), +} + + +def patch(): + # patch only once + if getattr(MySQLdb, '__datadog_patch', False): + return + setattr(MySQLdb, '__datadog_patch', True) + + # `Connection` and `connect` are aliases for + # `Connect`; patch them too + _w('MySQLdb', 'Connect', _connect) + if hasattr(MySQLdb, 'Connection'): + _w('MySQLdb', 'Connection', _connect) + if hasattr(MySQLdb, 'connect'): + _w('MySQLdb', 'connect', _connect) + + +def unpatch(): + if not getattr(MySQLdb, '__datadog_patch', False): + return + setattr(MySQLdb, '__datadog_patch', False) + + # unpatch MySQLdb + _u(MySQLdb, 'Connect') + if hasattr(MySQLdb, 'Connection'): + _u(MySQLdb, 'Connection') + if hasattr(MySQLdb, 'connect'): + _u(MySQLdb, 'connect') + + +def _connect(func, instance, args, kwargs): + conn = func(*args, **kwargs) + return patch_conn(conn, *args, **kwargs) + + +def patch_conn(conn, *args, **kwargs): + tags = {t: kwargs[k] if k in kwargs else args[p] + for t, (k, p) in KWPOS_BY_TAG.items() + if k in kwargs or len(args) > p} + tags[net.TARGET_PORT] = conn.port + pin = Pin(service='mysql', app='mysql', tags=tags) + + # grab the metadata from the conn + wrapped = TracedConnection(conn, pin=pin) + pin.onto(wrapped) + return wrapped diff --git a/ddtrace/contrib/psycopg/__init__.py b/ddtrace/contrib/psycopg/__init__.py new file mode 100644 index 0000000000..7ff699636d --- /dev/null +++ b/ddtrace/contrib/psycopg/__init__.py @@ -0,0 +1,30 @@ +"""Instrument psycopg2 to report Postgres queries. + +``patch_all`` will automatically patch your psycopg2 connection to make it work. +:: + + from ddtrace import Pin, patch + import psycopg2 + + # If not patched yet, you can patch psycopg2 specifically + patch(psycopg=True) + + # This will report a span with the default settings + db = psycopg2.connect(connection_factory=factory) + cursor = db.cursor() + cursor.execute("select * from users where id = 1") + + # Use a pin to specify metadata related to this connection + Pin.override(db, service='postgres-users') +""" +from ...utils.importlib import require_modules + + +required_modules = ['psycopg2'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .connection import connection_factory + from .patch import patch, patch_conn + + __all__ = ['connection_factory', 'patch', 'patch_conn'] diff --git a/ddtrace/contrib/psycopg/connection.py b/ddtrace/contrib/psycopg/connection.py new file mode 100644 index 0000000000..d3e4eb6e95 --- /dev/null +++ b/ddtrace/contrib/psycopg/connection.py @@ -0,0 +1,91 @@ +""" +Tracing utilities for the psycopg potgres client library. +""" + +# stdlib +import functools + +from ...ext import SpanTypes, db, net, sql +from ...utils.deprecation import deprecated + +# 3p +from psycopg2.extensions import connection, cursor + + +@deprecated(message='Use patching instead (see the docs).', version='1.0.0') +def connection_factory(tracer, service='postgres'): + """ Return a connection factory class that will can be used to trace + postgres queries. + + >>> factory = connection_factor(my_tracer, service='my_db_service') + >>> conn = pyscopg2.connect(..., connection_factory=factory) + """ + + return functools.partial( + TracedConnection, + datadog_tracer=tracer, + datadog_service=service, + ) + + +class TracedCursor(cursor): + """Wrapper around cursor creating one span per query""" + + def __init__(self, *args, **kwargs): + self._datadog_tracer = kwargs.pop('datadog_tracer', None) + self._datadog_service = kwargs.pop('datadog_service', None) + self._datadog_tags = kwargs.pop('datadog_tags', None) + super(TracedCursor, self).__init__(*args, **kwargs) + + def execute(self, query, vars=None): # noqa: A002 + """ just wrap the cursor execution in a span """ + if not self._datadog_tracer: + return cursor.execute(self, query, vars) + + with self._datadog_tracer.trace('postgres.query', service=self._datadog_service, span_type=SpanTypes.SQL) as s: + if not s.sampled: + return super(TracedCursor, self).execute(query, vars) + + s.resource = query + s.set_tags(self._datadog_tags) + try: + return super(TracedCursor, self).execute(query, vars) + finally: + s.set_metric('db.rowcount', self.rowcount) + + def callproc(self, procname, vars=None): # noqa: A002 + """ just wrap the execution in a span """ + return cursor.callproc(self, procname, vars) + + +class TracedConnection(connection): + """Wrapper around psycopg2 for tracing""" + + def __init__(self, *args, **kwargs): + + self._datadog_tracer = kwargs.pop('datadog_tracer', None) + self._datadog_service = kwargs.pop('datadog_service', None) + + super(TracedConnection, self).__init__(*args, **kwargs) + + # add metadata (from the connection, string, etc) + dsn = sql.parse_pg_dsn(self.dsn) + self._datadog_tags = { + net.TARGET_HOST: dsn.get('host'), + net.TARGET_PORT: dsn.get('port'), + db.NAME: dsn.get('dbname'), + db.USER: dsn.get('user'), + 'db.application': dsn.get('application_name'), + } + + self._datadog_cursor_class = functools.partial( + TracedCursor, + datadog_tracer=self._datadog_tracer, + datadog_service=self._datadog_service, + datadog_tags=self._datadog_tags, + ) + + def cursor(self, *args, **kwargs): + """ register our custom cursor factory """ + kwargs.setdefault('cursor_factory', self._datadog_cursor_class) + return super(TracedConnection, self).cursor(*args, **kwargs) diff --git a/ddtrace/contrib/psycopg/patch.py b/ddtrace/contrib/psycopg/patch.py new file mode 100644 index 0000000000..3aeb68b713 --- /dev/null +++ b/ddtrace/contrib/psycopg/patch.py @@ -0,0 +1,196 @@ +# 3p +import psycopg2 +from ddtrace.vendor import wrapt + +# project +from ddtrace import Pin, config +from ddtrace.contrib import dbapi +from ddtrace.ext import sql, net, db + +# Original connect method +_connect = psycopg2.connect + +# psycopg2 versions can end in `-betaN` where `N` is a number +# in such cases we simply skip version specific patching +PSYCOPG2_VERSION = (0, 0, 0) + +try: + PSYCOPG2_VERSION = tuple(map(int, psycopg2.__version__.split()[0].split('.'))) +except Exception: + pass + +if PSYCOPG2_VERSION >= (2, 7): + from psycopg2.sql import Composable + + +def patch(): + """ Patch monkey patches psycopg's connection function + so that the connection's functions are traced. + """ + if getattr(psycopg2, '_datadog_patch', False): + return + setattr(psycopg2, '_datadog_patch', True) + + wrapt.wrap_function_wrapper(psycopg2, 'connect', patched_connect) + _patch_extensions(_psycopg2_extensions) # do this early just in case + + +def unpatch(): + if getattr(psycopg2, '_datadog_patch', False): + setattr(psycopg2, '_datadog_patch', False) + psycopg2.connect = _connect + + +class Psycopg2TracedCursor(dbapi.TracedCursor): + """ TracedCursor for psycopg2 """ + def _trace_method(self, method, name, resource, extra_tags, *args, **kwargs): + # treat psycopg2.sql.Composable resource objects as strings + if PSYCOPG2_VERSION >= (2, 7) and isinstance(resource, Composable): + resource = resource.as_string(self.__wrapped__) + + return super(Psycopg2TracedCursor, self)._trace_method(method, name, resource, extra_tags, *args, **kwargs) + + +class Psycopg2FetchTracedCursor(Psycopg2TracedCursor, dbapi.FetchTracedCursor): + """ FetchTracedCursor for psycopg2 """ + + +class Psycopg2TracedConnection(dbapi.TracedConnection): + """ TracedConnection wraps a Connection with tracing code. """ + + def __init__(self, conn, pin=None, cursor_cls=None): + if not cursor_cls: + # Do not trace `fetch*` methods by default + cursor_cls = Psycopg2TracedCursor + if config.dbapi2.trace_fetch_methods: + cursor_cls = Psycopg2FetchTracedCursor + + super(Psycopg2TracedConnection, self).__init__(conn, pin, cursor_cls=cursor_cls) + + +def patch_conn(conn, traced_conn_cls=Psycopg2TracedConnection): + """ Wrap will patch the instance so that its queries are traced.""" + # ensure we've patched extensions (this is idempotent) in + # case we're only tracing some connections. + _patch_extensions(_psycopg2_extensions) + + c = traced_conn_cls(conn) + + # fetch tags from the dsn + dsn = sql.parse_pg_dsn(conn.dsn) + tags = { + net.TARGET_HOST: dsn.get('host'), + net.TARGET_PORT: dsn.get('port'), + db.NAME: dsn.get('dbname'), + db.USER: dsn.get('user'), + 'db.application': dsn.get('application_name'), + } + + Pin( + service='postgres', + app='postgres', + tags=tags).onto(c) + + return c + + +def _patch_extensions(_extensions): + # we must patch extensions all the time (it's pretty harmless) so split + # from global patching of connections. must be idempotent. + for _, module, func, wrapper in _extensions: + if not hasattr(module, func) or isinstance(getattr(module, func), wrapt.ObjectProxy): + continue + wrapt.wrap_function_wrapper(module, func, wrapper) + + +def _unpatch_extensions(_extensions): + # we must patch extensions all the time (it's pretty harmless) so split + # from global patching of connections. must be idempotent. + for original, module, func, _ in _extensions: + setattr(module, func, original) + + +# +# monkeypatch targets +# + +def patched_connect(connect_func, _, args, kwargs): + conn = connect_func(*args, **kwargs) + return patch_conn(conn) + + +def _extensions_register_type(func, _, args, kwargs): + def _unroll_args(obj, scope=None): + return obj, scope + obj, scope = _unroll_args(*args, **kwargs) + + # register_type performs a c-level check of the object + # type so we must be sure to pass in the actual db connection + if scope and isinstance(scope, wrapt.ObjectProxy): + scope = scope.__wrapped__ + + return func(obj, scope) if scope else func(obj) + + +def _extensions_quote_ident(func, _, args, kwargs): + def _unroll_args(obj, scope=None): + return obj, scope + obj, scope = _unroll_args(*args, **kwargs) + + # register_type performs a c-level check of the object + # type so we must be sure to pass in the actual db connection + if scope and isinstance(scope, wrapt.ObjectProxy): + scope = scope.__wrapped__ + + return func(obj, scope) if scope else func(obj) + + +def _extensions_adapt(func, _, args, kwargs): + adapt = func(*args, **kwargs) + if hasattr(adapt, 'prepare'): + return AdapterWrapper(adapt) + return adapt + + +class AdapterWrapper(wrapt.ObjectProxy): + def prepare(self, *args, **kwargs): + func = self.__wrapped__.prepare + if not args: + return func(*args, **kwargs) + conn = args[0] + + # prepare performs a c-level check of the object type so + # we must be sure to pass in the actual db connection + if isinstance(conn, wrapt.ObjectProxy): + conn = conn.__wrapped__ + + return func(conn, *args[1:], **kwargs) + + +# extension hooks +_psycopg2_extensions = [ + (psycopg2.extensions.register_type, + psycopg2.extensions, 'register_type', + _extensions_register_type), + (psycopg2._psycopg.register_type, + psycopg2._psycopg, 'register_type', + _extensions_register_type), + (psycopg2.extensions.adapt, + psycopg2.extensions, 'adapt', + _extensions_adapt), +] + +# `_json` attribute is only available for psycopg >= 2.5 +if getattr(psycopg2, '_json', None): + _psycopg2_extensions += [ + (psycopg2._json.register_type, + psycopg2._json, 'register_type', + _extensions_register_type), + ] + +# `quote_ident` attribute is only available for psycopg >= 2.7 +if getattr(psycopg2, 'extensions', None) and getattr(psycopg2.extensions, + 'quote_ident', None): + _psycopg2_extensions += [ + (psycopg2.extensions.quote_ident, psycopg2.extensions, 'quote_ident', _extensions_quote_ident), + ] diff --git a/ddtrace/contrib/pylibmc/__init__.py b/ddtrace/contrib/pylibmc/__init__.py new file mode 100644 index 0000000000..798faffbc5 --- /dev/null +++ b/ddtrace/contrib/pylibmc/__init__.py @@ -0,0 +1,31 @@ +"""Instrument pylibmc to report Memcached queries. + +``patch_all`` will automatically patch your pylibmc client to make it work. +:: + + # Be sure to import pylibmc and not pylibmc.Client directly, + # otherwise you won't have access to the patched version + from ddtrace import Pin, patch + import pylibmc + + # If not patched yet, you can patch pylibmc specifically + patch(pylibmc=True) + + # One client instrumented with default configuration + client = pylibmc.Client(["localhost:11211"] + client.set("key1", "value1") + + # Use a pin to specify metadata related to this client + Pin.override(client, service="memcached-sessions") +""" + +from ...utils.importlib import require_modules + +required_modules = ['pylibmc'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .client import TracedClient + from .patch import patch + + __all__ = ['TracedClient', 'patch'] diff --git a/ddtrace/contrib/pylibmc/addrs.py b/ddtrace/contrib/pylibmc/addrs.py new file mode 100644 index 0000000000..0f11d2ac44 --- /dev/null +++ b/ddtrace/contrib/pylibmc/addrs.py @@ -0,0 +1,14 @@ +translate_server_specs = None + +try: + # NOTE: we rely on an undocumented method to parse addresses, + # so be a bit defensive and don't assume it exists. + from pylibmc.client import translate_server_specs +except ImportError: + pass + + +def parse_addresses(addrs): + if not translate_server_specs: + return [] + return translate_server_specs(addrs) diff --git a/ddtrace/contrib/pylibmc/client.py b/ddtrace/contrib/pylibmc/client.py new file mode 100644 index 0000000000..415a0ef9f4 --- /dev/null +++ b/ddtrace/contrib/pylibmc/client.py @@ -0,0 +1,158 @@ +from contextlib import contextmanager +import random + +# 3p +from ddtrace.vendor.wrapt import ObjectProxy +import pylibmc + +# project +import ddtrace +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from ...ext import SpanTypes, memcached, net +from ...internal.logger import get_logger +from ...settings import config +from .addrs import parse_addresses + + +# Original Client class +_Client = pylibmc.Client + + +log = get_logger(__name__) + + +class TracedClient(ObjectProxy): + """ TracedClient is a proxy for a pylibmc.Client that times it's network operations. """ + + def __init__(self, client=None, service=memcached.SERVICE, tracer=None, *args, **kwargs): + """ Create a traced client that wraps the given memcached client. + + """ + # The client instance/service/tracer attributes are kept for compatibility + # with the old interface: TracedClient(client=pylibmc.Client(['localhost:11211'])) + # TODO(Benjamin): Remove these in favor of patching. + if not isinstance(client, _Client): + # We are in the patched situation, just pass down all arguments to the pylibmc.Client + # Note that, in that case, client isn't a real client (just the first argument) + client = _Client(client, *args, **kwargs) + else: + log.warning('TracedClient instantiation is deprecated and will be remove ' + 'in future versions (0.6.0). Use patching instead (see the docs).') + + super(TracedClient, self).__init__(client) + + pin = ddtrace.Pin(service=service, tracer=tracer) + pin.onto(self) + + # attempt to collect the pool of urls this client talks to + try: + self._addresses = parse_addresses(client.addresses) + except Exception: + log.debug('error setting addresses', exc_info=True) + + def clone(self, *args, **kwargs): + # rewrap new connections. + cloned = self.__wrapped__.clone(*args, **kwargs) + traced_client = TracedClient(cloned) + pin = ddtrace.Pin.get_from(self) + if pin: + pin.clone().onto(traced_client) + return traced_client + + def get(self, *args, **kwargs): + return self._trace_cmd('get', *args, **kwargs) + + def set(self, *args, **kwargs): + return self._trace_cmd('set', *args, **kwargs) + + def delete(self, *args, **kwargs): + return self._trace_cmd('delete', *args, **kwargs) + + def gets(self, *args, **kwargs): + return self._trace_cmd('gets', *args, **kwargs) + + def touch(self, *args, **kwargs): + return self._trace_cmd('touch', *args, **kwargs) + + def cas(self, *args, **kwargs): + return self._trace_cmd('cas', *args, **kwargs) + + def incr(self, *args, **kwargs): + return self._trace_cmd('incr', *args, **kwargs) + + def decr(self, *args, **kwargs): + return self._trace_cmd('decr', *args, **kwargs) + + def append(self, *args, **kwargs): + return self._trace_cmd('append', *args, **kwargs) + + def prepend(self, *args, **kwargs): + return self._trace_cmd('prepend', *args, **kwargs) + + def get_multi(self, *args, **kwargs): + return self._trace_multi_cmd('get_multi', *args, **kwargs) + + def set_multi(self, *args, **kwargs): + return self._trace_multi_cmd('set_multi', *args, **kwargs) + + def delete_multi(self, *args, **kwargs): + return self._trace_multi_cmd('delete_multi', *args, **kwargs) + + def _trace_cmd(self, method_name, *args, **kwargs): + """ trace the execution of the method with the given name and will + patch the first arg. + """ + method = getattr(self.__wrapped__, method_name) + with self._span(method_name) as span: + + if span and args: + span.set_tag(memcached.QUERY, '%s %s' % (method_name, args[0])) + + return method(*args, **kwargs) + + def _trace_multi_cmd(self, method_name, *args, **kwargs): + """ trace the execution of the multi command with the given name. """ + method = getattr(self.__wrapped__, method_name) + with self._span(method_name) as span: + + pre = kwargs.get('key_prefix') + if span and pre: + span.set_tag(memcached.QUERY, '%s %s' % (method_name, pre)) + + return method(*args, **kwargs) + + @contextmanager + def _no_span(self): + yield None + + def _span(self, cmd_name): + """ Return a span timing the given command. """ + pin = ddtrace.Pin.get_from(self) + if not pin or not pin.enabled(): + return self._no_span() + + span = pin.tracer.trace( + 'memcached.cmd', + service=pin.service, + resource=cmd_name, + span_type=SpanTypes.CACHE) + + try: + self._tag_span(span) + except Exception: + log.debug('error tagging span', exc_info=True) + return span + + def _tag_span(self, span): + # FIXME[matt] the host selection is buried in c code. we can't tell what it's actually + # using, so fallback to randomly choosing one. can we do better? + if self._addresses: + _, host, port, _ = random.choice(self._addresses) + span.set_meta(net.TARGET_HOST, host) + span.set_meta(net.TARGET_PORT, port) + + # set analytics sample rate + span.set_tag( + ANALYTICS_SAMPLE_RATE_KEY, + config.pylibmc.get_analytics_sample_rate() + ) diff --git a/ddtrace/contrib/pylibmc/patch.py b/ddtrace/contrib/pylibmc/patch.py new file mode 100644 index 0000000000..bf1606a627 --- /dev/null +++ b/ddtrace/contrib/pylibmc/patch.py @@ -0,0 +1,14 @@ +import pylibmc + +from .client import TracedClient + +# Original Client class +_Client = pylibmc.Client + + +def patch(): + setattr(pylibmc, 'Client', TracedClient) + + +def unpatch(): + setattr(pylibmc, 'Client', _Client) diff --git a/ddtrace/contrib/pylons/__init__.py b/ddtrace/contrib/pylons/__init__.py new file mode 100644 index 0000000000..88339224d6 --- /dev/null +++ b/ddtrace/contrib/pylons/__init__.py @@ -0,0 +1,32 @@ +""" +The pylons trace middleware will track request timings. To +install the middleware, prepare your WSGI application and do +the following:: + + from pylons.wsgiapp import PylonsApp + + from ddtrace import tracer + from ddtrace.contrib.pylons import PylonsTraceMiddleware + + app = PylonsApp(...) + + traced_app = PylonsTraceMiddleware(app, tracer, service='my-pylons-app') + +Then you can define your routes and views as usual. +""" + +from ...utils.importlib import require_modules + + +required_modules = ['pylons.wsgiapp'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .middleware import PylonsTraceMiddleware + from .patch import patch, unpatch + + __all__ = [ + 'patch', + 'unpatch', + 'PylonsTraceMiddleware', + ] diff --git a/ddtrace/contrib/pylons/compat.py b/ddtrace/contrib/pylons/compat.py new file mode 100644 index 0000000000..f49480d055 --- /dev/null +++ b/ddtrace/contrib/pylons/compat.py @@ -0,0 +1,8 @@ +try: + from pylons.templating import render_mako # noqa + + # Pylons > 0.9.7 + legacy_pylons = False +except ImportError: + # Pylons <= 0.9.7 + legacy_pylons = True diff --git a/ddtrace/contrib/pylons/constants.py b/ddtrace/contrib/pylons/constants.py new file mode 100644 index 0000000000..ae0fb42497 --- /dev/null +++ b/ddtrace/contrib/pylons/constants.py @@ -0,0 +1 @@ +CONFIG_MIDDLEWARE = '__datadog_middleware' diff --git a/ddtrace/contrib/pylons/middleware.py b/ddtrace/contrib/pylons/middleware.py new file mode 100644 index 0000000000..2d2d5df359 --- /dev/null +++ b/ddtrace/contrib/pylons/middleware.py @@ -0,0 +1,110 @@ +import sys + +from webob import Request +from pylons import config + +from .renderer import trace_rendering +from .constants import CONFIG_MIDDLEWARE + +from ...compat import reraise +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from ...ext import SpanTypes, http +from ...internal.logger import get_logger +from ...propagation.http import HTTPPropagator +from ...settings import config as ddconfig + + +log = get_logger(__name__) + + +class PylonsTraceMiddleware(object): + + def __init__(self, app, tracer, service='pylons', distributed_tracing=True): + self.app = app + self._service = service + self._distributed_tracing = distributed_tracing + self._tracer = tracer + + # register middleware reference + config[CONFIG_MIDDLEWARE] = self + + # add template tracing + trace_rendering() + + def __call__(self, environ, start_response): + if self._distributed_tracing: + # retrieve distributed tracing headers + request = Request(environ) + propagator = HTTPPropagator() + context = propagator.extract(request.headers) + # only need to active the new context if something was propagated + if context.trace_id: + self._tracer.context_provider.activate(context) + + with self._tracer.trace('pylons.request', service=self._service, span_type=SpanTypes.WEB) as span: + # Set the service in tracer.trace() as priority sampling requires it to be + # set as early as possible when different services share one single agent. + + # set analytics sample rate with global config enabled + span.set_tag( + ANALYTICS_SAMPLE_RATE_KEY, + ddconfig.pylons.get_analytics_sample_rate(use_global_config=True) + ) + + if not span.sampled: + return self.app(environ, start_response) + + # tentative on status code, otherwise will be caught by except below + def _start_response(status, *args, **kwargs): + """ a patched response callback which will pluck some metadata. """ + http_code = int(status.split()[0]) + span.set_tag(http.STATUS_CODE, http_code) + if http_code >= 500: + span.error = 1 + return start_response(status, *args, **kwargs) + + try: + return self.app(environ, _start_response) + except Exception as e: + # store current exceptions info so we can re-raise it later + (typ, val, tb) = sys.exc_info() + + # e.code can either be a string or an int + code = getattr(e, 'code', 500) + try: + code = int(code) + if not 100 <= code < 600: + code = 500 + except Exception: + code = 500 + span.set_tag(http.STATUS_CODE, code) + span.error = 1 + + # re-raise the original exception with its original traceback + reraise(typ, val, tb=tb) + except SystemExit: + span.set_tag(http.STATUS_CODE, 500) + span.error = 1 + raise + finally: + controller = environ.get('pylons.routes_dict', {}).get('controller') + action = environ.get('pylons.routes_dict', {}).get('action') + + # There are cases where users re-route requests and manually + # set resources. If this is so, don't do anything, otherwise + # set the resource to the controller / action that handled it. + if span.resource == span.name: + span.resource = '%s.%s' % (controller, action) + + span.set_tags({ + http.METHOD: environ.get('REQUEST_METHOD'), + http.URL: '%s://%s:%s%s' % (environ.get('wsgi.url_scheme'), + environ.get('SERVER_NAME'), + environ.get('SERVER_PORT'), + environ.get('PATH_INFO')), + 'pylons.user': environ.get('REMOTE_USER', ''), + 'pylons.route.controller': controller, + 'pylons.route.action': action, + }) + if ddconfig.pylons.trace_query_string: + span.set_tag(http.QUERY_STRING, environ.get('QUERY_STRING')) diff --git a/ddtrace/contrib/pylons/patch.py b/ddtrace/contrib/pylons/patch.py new file mode 100644 index 0000000000..ad437d8c20 --- /dev/null +++ b/ddtrace/contrib/pylons/patch.py @@ -0,0 +1,41 @@ +import os +from ddtrace.vendor import wrapt +import pylons.wsgiapp + +from ddtrace import tracer, Pin + +from .middleware import PylonsTraceMiddleware +from ...utils.formats import asbool, get_env +from ...utils.wrappers import unwrap as _u + + +def patch(): + """Instrument Pylons applications""" + if getattr(pylons.wsgiapp, '_datadog_patch', False): + return + + setattr(pylons.wsgiapp, '_datadog_patch', True) + wrapt.wrap_function_wrapper('pylons.wsgiapp', 'PylonsApp.__init__', traced_init) + + +def unpatch(): + """Disable Pylons tracing""" + if not getattr(pylons.wsgiapp, '__datadog_patch', False): + return + setattr(pylons.wsgiapp, '__datadog_patch', False) + + _u(pylons.wsgiapp.PylonsApp, '__init__') + + +def traced_init(wrapped, instance, args, kwargs): + wrapped(*args, **kwargs) + + # set tracing options and create the TraceMiddleware + service = os.environ.get('DATADOG_SERVICE_NAME', 'pylons') + distributed_tracing = asbool(get_env('pylons', 'distributed_tracing', True)) + Pin(service=service, tracer=tracer).onto(instance) + traced_app = PylonsTraceMiddleware(instance, tracer, service=service, distributed_tracing=distributed_tracing) + + # re-order the middleware stack so that the first middleware is ours + traced_app.app = instance.app + instance.app = traced_app diff --git a/ddtrace/contrib/pylons/renderer.py b/ddtrace/contrib/pylons/renderer.py new file mode 100644 index 0000000000..45ae49c805 --- /dev/null +++ b/ddtrace/contrib/pylons/renderer.py @@ -0,0 +1,36 @@ +import pylons + +from pylons import config + +from ddtrace.vendor.wrapt import wrap_function_wrapper as _w + +from .compat import legacy_pylons +from .constants import CONFIG_MIDDLEWARE + + +def trace_rendering(): + """Patch all Pylons renderers. It supports multiple versions + of Pylons and multiple renderers. + """ + # patch only once + if getattr(pylons.templating, '__datadog_patch', False): + return + setattr(pylons.templating, '__datadog_patch', True) + + if legacy_pylons: + # Pylons <= 0.9.7 + _w('pylons.templating', 'render', _traced_renderer) + else: + # Pylons > 0.9.7 + _w('pylons.templating', 'render_mako', _traced_renderer) + _w('pylons.templating', 'render_mako_def', _traced_renderer) + _w('pylons.templating', 'render_genshi', _traced_renderer) + _w('pylons.templating', 'render_jinja2', _traced_renderer) + + +def _traced_renderer(wrapped, instance, args, kwargs): + """Traced renderer""" + tracer = config[CONFIG_MIDDLEWARE]._tracer + with tracer.trace('pylons.render') as span: + span.set_tag('template.name', args[0]) + return wrapped(*args, **kwargs) diff --git a/ddtrace/contrib/pymemcache/__init__.py b/ddtrace/contrib/pymemcache/__init__.py new file mode 100644 index 0000000000..ad8607a732 --- /dev/null +++ b/ddtrace/contrib/pymemcache/__init__.py @@ -0,0 +1,38 @@ +"""Instrument pymemcache to report memcached queries. + +``patch_all`` will automatically patch the pymemcache ``Client``:: + + from ddtrace import Pin, patch + + # If not patched yet, patch pymemcache specifically + patch(pymemcache=True) + + # Import reference to Client AFTER patching + import pymemcache + from pymemcache.client.base import Client + + # Use a pin to specify metadata related all clients + Pin.override(pymemcache, service='my-memcached-service') + + # This will report a span with the default settings + client = Client(('localhost', 11211)) + client.set("my-key", "my-val") + + # Use a pin to specify metadata related to this particular client + Pin.override(client, service='my-memcached-service') + +Pymemcache ``HashClient`` will also be indirectly patched as it uses ``Client`` +under the hood. +""" +from ...utils.importlib import require_modules + + +required_modules = ['pymemcache'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .patch import patch, unpatch + __all__ = [ + patch, + unpatch, + ] diff --git a/ddtrace/contrib/pymemcache/client.py b/ddtrace/contrib/pymemcache/client.py new file mode 100644 index 0000000000..891425814b --- /dev/null +++ b/ddtrace/contrib/pymemcache/client.py @@ -0,0 +1,219 @@ +import sys + +# 3p +from ddtrace.vendor import wrapt +import pymemcache +from pymemcache.client.base import Client +from pymemcache.exceptions import ( + MemcacheClientError, + MemcacheServerError, + MemcacheUnknownCommandError, + MemcacheUnknownError, + MemcacheIllegalInputError, +) + +# project +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from ...compat import reraise +from ...ext import SpanTypes, net, memcached as memcachedx +from ...internal.logger import get_logger +from ...pin import Pin +from ...settings import config + +log = get_logger(__name__) + + +# keep a reference to the original unpatched clients +_Client = Client + + +class WrappedClient(wrapt.ObjectProxy): + """Wrapper providing patched methods of a pymemcache Client. + + Relevant connection information is obtained during initialization and + attached to each span. + + Keys are tagged in spans for methods that act upon a key. + """ + + def __init__(self, *args, **kwargs): + c = _Client(*args, **kwargs) + super(WrappedClient, self).__init__(c) + + # tags to apply to each span generated by this client + tags = _get_address_tags(*args, **kwargs) + + parent_pin = Pin.get_from(pymemcache) + + if parent_pin: + pin = parent_pin.clone(tags=tags) + else: + pin = Pin(tags=tags) + + # attach the pin onto this instance + pin.onto(self) + + def set(self, *args, **kwargs): + return self._traced_cmd('set', *args, **kwargs) + + def set_many(self, *args, **kwargs): + return self._traced_cmd('set_many', *args, **kwargs) + + def add(self, *args, **kwargs): + return self._traced_cmd('add', *args, **kwargs) + + def replace(self, *args, **kwargs): + return self._traced_cmd('replace', *args, **kwargs) + + def append(self, *args, **kwargs): + return self._traced_cmd('append', *args, **kwargs) + + def prepend(self, *args, **kwargs): + return self._traced_cmd('prepend', *args, **kwargs) + + def cas(self, *args, **kwargs): + return self._traced_cmd('cas', *args, **kwargs) + + def get(self, *args, **kwargs): + return self._traced_cmd('get', *args, **kwargs) + + def get_many(self, *args, **kwargs): + return self._traced_cmd('get_many', *args, **kwargs) + + def gets(self, *args, **kwargs): + return self._traced_cmd('gets', *args, **kwargs) + + def gets_many(self, *args, **kwargs): + return self._traced_cmd('gets_many', *args, **kwargs) + + def delete(self, *args, **kwargs): + return self._traced_cmd('delete', *args, **kwargs) + + def delete_many(self, *args, **kwargs): + return self._traced_cmd('delete_many', *args, **kwargs) + + def incr(self, *args, **kwargs): + return self._traced_cmd('incr', *args, **kwargs) + + def decr(self, *args, **kwargs): + return self._traced_cmd('decr', *args, **kwargs) + + def touch(self, *args, **kwargs): + return self._traced_cmd('touch', *args, **kwargs) + + def stats(self, *args, **kwargs): + return self._traced_cmd('stats', *args, **kwargs) + + def version(self, *args, **kwargs): + return self._traced_cmd('version', *args, **kwargs) + + def flush_all(self, *args, **kwargs): + return self._traced_cmd('flush_all', *args, **kwargs) + + def quit(self, *args, **kwargs): + return self._traced_cmd('quit', *args, **kwargs) + + def set_multi(self, *args, **kwargs): + """set_multi is an alias for set_many""" + return self._traced_cmd('set_many', *args, **kwargs) + + def get_multi(self, *args, **kwargs): + """set_multi is an alias for set_many""" + return self._traced_cmd('get_many', *args, **kwargs) + + def _traced_cmd(self, method_name, *args, **kwargs): + """Run and trace the given command. + + Any pymemcache exception is caught and span error information is + set. The exception is then reraised for the application to handle + appropriately. + + Relevant tags are set in the span. + """ + method = getattr(self.__wrapped__, method_name) + p = Pin.get_from(self) + + # if the pin does not exist or is not enabled, shortcut + if not p or not p.enabled(): + return method(*args, **kwargs) + + with p.tracer.trace( + memcachedx.CMD, + service=p.service, + resource=method_name, + span_type=SpanTypes.CACHE, + ) as span: + # set analytics sample rate + span.set_tag( + ANALYTICS_SAMPLE_RATE_KEY, + config.pymemcache.get_analytics_sample_rate() + ) + + # try to set relevant tags, catch any exceptions so we don't mess + # with the application + try: + span.set_tags(p.tags) + vals = _get_query_string(args) + query = '{}{}{}'.format(method_name, ' ' if vals else '', vals) + span.set_tag(memcachedx.QUERY, query) + except Exception: + log.debug('Error setting relevant pymemcache tags') + + try: + return method(*args, **kwargs) + except ( + MemcacheClientError, + MemcacheServerError, + MemcacheUnknownCommandError, + MemcacheUnknownError, + MemcacheIllegalInputError, + ): + (typ, val, tb) = sys.exc_info() + span.set_exc_info(typ, val, tb) + reraise(typ, val, tb) + + +def _get_address_tags(*args, **kwargs): + """Attempt to get host and port from args passed to Client initializer.""" + tags = {} + try: + if len(args): + host, port = args[0] + tags[net.TARGET_HOST] = host + tags[net.TARGET_PORT] = port + except Exception: + log.debug('Error collecting client address tags') + + return tags + + +def _get_query_string(args): + """Return the query values given the arguments to a pymemcache command. + + If there are multiple query values, they are joined together + space-separated. + """ + keys = '' + + # shortcut if no args + if not args: + return keys + + # pull out the first arg which will contain any key + arg = args[0] + + # if we get a dict, convert to list of keys + if type(arg) is dict: + arg = list(arg) + + if type(arg) is str: + keys = arg + elif type(arg) is bytes: + keys = arg.decode() + elif type(arg) is list and len(arg): + if type(arg[0]) is str: + keys = ' '.join(arg) + elif type(arg[0]) is bytes: + keys = b' '.join(arg).decode() + + return keys diff --git a/ddtrace/contrib/pymemcache/patch.py b/ddtrace/contrib/pymemcache/patch.py new file mode 100644 index 0000000000..6ab0cabc07 --- /dev/null +++ b/ddtrace/contrib/pymemcache/patch.py @@ -0,0 +1,32 @@ +import pymemcache + +from ddtrace.ext import memcached as memcachedx +from ddtrace.pin import Pin, _DD_PIN_NAME, _DD_PIN_PROXY_NAME +from .client import WrappedClient + +_Client = pymemcache.client.base.Client + + +def patch(): + if getattr(pymemcache.client, '_datadog_patch', False): + return + + setattr(pymemcache.client, '_datadog_patch', True) + setattr(pymemcache.client.base, 'Client', WrappedClient) + + # Create a global pin with default configuration for our pymemcache clients + Pin( + app=memcachedx.SERVICE, service=memcachedx.SERVICE + ).onto(pymemcache) + + +def unpatch(): + """Remove pymemcache tracing""" + if not getattr(pymemcache.client, '_datadog_patch', False): + return + setattr(pymemcache.client, '_datadog_patch', False) + setattr(pymemcache.client.base, 'Client', _Client) + + # Remove any pins that may exist on the pymemcache reference + setattr(pymemcache, _DD_PIN_NAME, None) + setattr(pymemcache, _DD_PIN_PROXY_NAME, None) diff --git a/ddtrace/contrib/pymongo/__init__.py b/ddtrace/contrib/pymongo/__init__.py new file mode 100644 index 0000000000..fd49869d3b --- /dev/null +++ b/ddtrace/contrib/pymongo/__init__.py @@ -0,0 +1,36 @@ +"""Instrument pymongo to report MongoDB queries. + +The pymongo integration works by wrapping pymongo's MongoClient to trace +network calls. Pymongo 3.0 and greater are the currently supported versions. +``patch_all`` will automatically patch your MongoClient instance to make it work. + +:: + + # Be sure to import pymongo and not pymongo.MongoClient directly, + # otherwise you won't have access to the patched version + from ddtrace import Pin, patch + import pymongo + + # If not patched yet, you can patch pymongo specifically + patch(pymongo=True) + + # At that point, pymongo is instrumented with the default settings + client = pymongo.MongoClient() + # Example of instrumented query + db = client["test-db"] + db.teams.find({"name": "Toronto Maple Leafs"}) + + # Use a pin to specify metadata related to this client + client = pymongo.MongoClient() + pin = Pin.override(client, service="mongo-master") +""" +from ...utils.importlib import require_modules + + +required_modules = ['pymongo'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .client import trace_mongo_client + from .patch import patch + __all__ = ['trace_mongo_client', 'patch'] diff --git a/ddtrace/contrib/pymongo/client.py b/ddtrace/contrib/pymongo/client.py new file mode 100644 index 0000000000..3aa5d22320 --- /dev/null +++ b/ddtrace/contrib/pymongo/client.py @@ -0,0 +1,293 @@ +# stdlib +import contextlib +import json + +# 3p +import pymongo +from ddtrace.vendor.wrapt import ObjectProxy + +# project +import ddtrace +from ...compat import iteritems +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from ...ext import SpanTypes, mongo as mongox, net as netx +from ...internal.logger import get_logger +from ...settings import config +from ...utils.deprecation import deprecated +from .parse import parse_spec, parse_query, parse_msg + +# Original Client class +_MongoClient = pymongo.MongoClient + +log = get_logger(__name__) + + +@deprecated(message='Use patching instead (see the docs).', version='1.0.0') +def trace_mongo_client(client, tracer, service=mongox.SERVICE): + traced_client = TracedMongoClient(client) + ddtrace.Pin(service=service, tracer=tracer).onto(traced_client) + return traced_client + + +class TracedMongoClient(ObjectProxy): + + def __init__(self, client=None, *args, **kwargs): + # To support the former trace_mongo_client interface, we have to keep this old interface + # TODO(Benjamin): drop it in a later version + if not isinstance(client, _MongoClient): + # Patched interface, instantiate the client + + # client is just the first arg which could be the host if it is + # None, then it could be that the caller: + + # if client is None then __init__ was: + # 1) invoked with host=None + # 2) not given a first argument (client defaults to None) + # we cannot tell which case it is, but it should not matter since + # the default value for host is None, in either case we can simply + # not provide it as an argument + if client is None: + client = _MongoClient(*args, **kwargs) + # else client is a value for host so just pass it along + else: + client = _MongoClient(client, *args, **kwargs) + + super(TracedMongoClient, self).__init__(client) + # NOTE[matt] the TracedMongoClient attempts to trace all of the network + # calls in the trace library. This is good because it measures the + # actual network time. It's bad because it uses a private API which + # could change. We'll see how this goes. + client._topology = TracedTopology(client._topology) + + # Default Pin + ddtrace.Pin(service=mongox.SERVICE, app=mongox.SERVICE).onto(self) + + def __setddpin__(self, pin): + pin.onto(self._topology) + + def __getddpin__(self): + return ddtrace.Pin.get_from(self._topology) + + +class TracedTopology(ObjectProxy): + + def __init__(self, topology): + super(TracedTopology, self).__init__(topology) + + def select_server(self, *args, **kwargs): + s = self.__wrapped__.select_server(*args, **kwargs) + if not isinstance(s, TracedServer): + s = TracedServer(s) + # Reattach the pin every time in case it changed since the initial patching + ddtrace.Pin.get_from(self).onto(s) + return s + + +class TracedServer(ObjectProxy): + + def __init__(self, server): + super(TracedServer, self).__init__(server) + + def _datadog_trace_operation(self, operation): + cmd = None + # Only try to parse something we think is a query. + if self._is_query(operation): + try: + cmd = parse_query(operation) + except Exception: + log.exception('error parsing query') + + pin = ddtrace.Pin.get_from(self) + # if we couldn't parse or shouldn't trace the message, just go. + if not cmd or not pin or not pin.enabled(): + return None + + span = pin.tracer.trace('pymongo.cmd', span_type=SpanTypes.MONGODB, service=pin.service) + span.set_tag(mongox.DB, cmd.db) + span.set_tag(mongox.COLLECTION, cmd.coll) + span.set_tags(cmd.tags) + + # set `mongodb.query` tag and resource for span + _set_query_metadata(span, cmd) + + # set analytics sample rate + sample_rate = config.pymongo.get_analytics_sample_rate() + if sample_rate is not None: + span.set_tag(ANALYTICS_SAMPLE_RATE_KEY, sample_rate) + return span + + # Pymongo >= 3.9 + def run_operation_with_response(self, sock_info, operation, *args, **kwargs): + span = self._datadog_trace_operation(operation) + if not span: + return self.__wrapped__.run_operation_with_response( + sock_info, + operation, + *args, + **kwargs + ) + + try: + result = self.__wrapped__.run_operation_with_response( + sock_info, + operation, + *args, + **kwargs + ) + + if result and result.address: + _set_address_tags(span, result.address) + return result + finally: + span.finish() + + # Pymongo < 3.9 + def send_message_with_response(self, operation, *args, **kwargs): + span = self._datadog_trace_operation(operation) + if not span: + return self.__wrapped__.send_message_with_response( + operation, + *args, + **kwargs + ) + + try: + result = self.__wrapped__.send_message_with_response( + operation, + *args, + **kwargs + ) + + if result and result.address: + _set_address_tags(span, result.address) + return result + finally: + span.finish() + + @contextlib.contextmanager + def get_socket(self, *args, **kwargs): + with self.__wrapped__.get_socket(*args, **kwargs) as s: + if not isinstance(s, TracedSocket): + s = TracedSocket(s) + ddtrace.Pin.get_from(self).onto(s) + yield s + + @staticmethod + def _is_query(op): + # NOTE: _Query should alwyas have a spec field + return hasattr(op, 'spec') + + +class TracedSocket(ObjectProxy): + + def __init__(self, socket): + super(TracedSocket, self).__init__(socket) + + def command(self, dbname, spec, *args, **kwargs): + cmd = None + try: + cmd = parse_spec(spec, dbname) + except Exception: + log.exception('error parsing spec. skipping trace') + + pin = ddtrace.Pin.get_from(self) + # skip tracing if we don't have a piece of data we need + if not dbname or not cmd or not pin or not pin.enabled(): + return self.__wrapped__.command(dbname, spec, *args, **kwargs) + + cmd.db = dbname + with self.__trace(cmd): + return self.__wrapped__.command(dbname, spec, *args, **kwargs) + + def write_command(self, request_id, msg): + cmd = None + try: + cmd = parse_msg(msg) + except Exception: + log.exception('error parsing msg') + + pin = ddtrace.Pin.get_from(self) + # if we couldn't parse it, don't try to trace it. + if not cmd or not pin or not pin.enabled(): + return self.__wrapped__.write_command(request_id, msg) + + with self.__trace(cmd) as s: + result = self.__wrapped__.write_command(request_id, msg) + if result: + s.set_metric(mongox.ROWS, result.get('n', -1)) + return result + + def __trace(self, cmd): + pin = ddtrace.Pin.get_from(self) + s = pin.tracer.trace( + 'pymongo.cmd', + span_type=SpanTypes.MONGODB, + service=pin.service) + + if cmd.db: + s.set_tag(mongox.DB, cmd.db) + if cmd: + s.set_tag(mongox.COLLECTION, cmd.coll) + s.set_tags(cmd.tags) + s.set_metrics(cmd.metrics) + + # set `mongodb.query` tag and resource for span + _set_query_metadata(s, cmd) + + # set analytics sample rate + s.set_tag( + ANALYTICS_SAMPLE_RATE_KEY, + config.pymongo.get_analytics_sample_rate() + ) + + if self.address: + _set_address_tags(s, self.address) + return s + + +def normalize_filter(f=None): + if f is None: + return {} + elif isinstance(f, list): + # normalize lists of filters + # e.g. {$or: [ { age: { $lt: 30 } }, { type: 1 } ]} + return [normalize_filter(s) for s in f] + elif isinstance(f, dict): + # normalize dicts of filters + # {$or: [ { age: { $lt: 30 } }, { type: 1 } ]}) + out = {} + for k, v in iteritems(f): + if k == '$in' or k == '$nin': + # special case $in queries so we don't loop over lists. + out[k] = '?' + elif isinstance(v, list) or isinstance(v, dict): + # RECURSION ALERT: needs to move to the agent + out[k] = normalize_filter(v) + else: + # NOTE: this shouldn't happen, but let's have a safeguard. + out[k] = '?' + return out + else: + # FIXME[matt] unexpected type. not sure this should ever happen, but at + # least it won't crash. + return {} + + +def _set_address_tags(span, address): + # the address is only set after the cursor is done. + if address: + span.set_tag(netx.TARGET_HOST, address[0]) + span.set_tag(netx.TARGET_PORT, address[1]) + + +def _set_query_metadata(span, cmd): + """ Sets span `mongodb.query` tag and resource given command query """ + if cmd.query: + nq = normalize_filter(cmd.query) + span.set_tag('mongodb.query', nq) + # needed to dump json so we don't get unicode + # dict keys like {u'foo':'bar'} + q = json.dumps(nq) + span.resource = '{} {} {}'.format(cmd.name, cmd.coll, q) + else: + span.resource = '{} {}'.format(cmd.name, cmd.coll) diff --git a/ddtrace/contrib/pymongo/parse.py b/ddtrace/contrib/pymongo/parse.py new file mode 100644 index 0000000000..a6ed214255 --- /dev/null +++ b/ddtrace/contrib/pymongo/parse.py @@ -0,0 +1,209 @@ +import ctypes +import struct + +# 3p +import bson +from bson.codec_options import CodecOptions +from bson.son import SON + +# project +from ...compat import to_unicode +from ...ext import net as netx +from ...internal.logger import get_logger + + +log = get_logger(__name__) + + +# MongoDB wire protocol commands +# http://docs.mongodb.com/manual/reference/mongodb-wire-protocol +OP_CODES = { + 1: 'reply', + 1000: 'msg', # DEV: 1000 was deprecated at some point, use 2013 instead + 2001: 'update', + 2002: 'insert', + 2003: 'reserved', + 2004: 'query', + 2005: 'get_more', + 2006: 'delete', + 2007: 'kill_cursors', + 2010: 'command', + 2011: 'command_reply', + 2013: 'msg', +} + +# The maximum message length we'll try to parse +MAX_MSG_PARSE_LEN = 1024 * 1024 + +header_struct = struct.Struct('= 3.1 stores the db and coll seperately + coll = getattr(query, 'coll', None) + db = getattr(query, 'db', None) + + # pymongo < 3.1 _Query does not have a name field, so default to 'query' + cmd = Command(getattr(query, 'name', 'query'), db, coll) + cmd.query = query.spec + return cmd + + +def parse_spec(spec, db=None): + """ Return a Command that has parsed the relevant detail for the given + pymongo SON spec. + """ + + # the first element is the command and collection + items = list(spec.items()) + if not items: + return None + name, coll = items[0] + cmd = Command(name, db or spec.get('$db'), coll) + + if 'ordered' in spec: # in insert and update + cmd.tags['mongodb.ordered'] = spec['ordered'] + + if cmd.name == 'insert': + if 'documents' in spec: + cmd.metrics['mongodb.documents'] = len(spec['documents']) + + elif cmd.name == 'update': + updates = spec.get('updates') + if updates: + # FIXME[matt] is there ever more than one here? + cmd.query = updates[0].get('q') + + elif cmd.name == 'delete': + dels = spec.get('deletes') + if dels: + # FIXME[matt] is there ever more than one here? + cmd.query = dels[0].get('q') + + return cmd + + +def _cstring(raw): + """ Return the first null terminated cstring from the bufffer. """ + return ctypes.create_string_buffer(raw).value + + +def _split_namespace(ns): + """ Return a tuple of (db, collecton) from the 'db.coll' string. """ + if ns: + # NOTE[matt] ns is unicode or bytes depending on the client version + # so force cast to unicode + split = to_unicode(ns).split('.', 1) + if len(split) == 1: + raise Exception("namespace doesn't contain period: %s" % ns) + return split + return (None, None) diff --git a/ddtrace/contrib/pymongo/patch.py b/ddtrace/contrib/pymongo/patch.py new file mode 100644 index 0000000000..2175c8d56a --- /dev/null +++ b/ddtrace/contrib/pymongo/patch.py @@ -0,0 +1,14 @@ +import pymongo + +from .client import TracedMongoClient + +# Original Client class +_MongoClient = pymongo.MongoClient + + +def patch(): + setattr(pymongo, 'MongoClient', TracedMongoClient) + + +def unpatch(): + setattr(pymongo, 'MongoClient', _MongoClient) diff --git a/ddtrace/contrib/pymysql/__init__.py b/ddtrace/contrib/pymysql/__init__.py new file mode 100644 index 0000000000..a471ea1882 --- /dev/null +++ b/ddtrace/contrib/pymysql/__init__.py @@ -0,0 +1,31 @@ +"""Instrument pymysql to report MySQL queries. + +``patch_all`` will automatically patch your pymysql connection to make it work. +:: + + from ddtrace import Pin, patch + from pymysql import connect + + # If not patched yet, you can patch pymysql specifically + patch(pymysql=True) + + # This will report a span with the default settings + conn = connect(user="alice", password="b0b", host="localhost", port=3306, database="test") + cursor = conn.cursor() + cursor.execute("SELECT 6*7 AS the_answer;") + + # Use a pin to specify metadata related to this connection + Pin.override(conn, service='pymysql-users') +""" + +from ...utils.importlib import require_modules + + +required_modules = ['pymysql'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .patch import patch + from .tracers import get_traced_pymysql_connection + + __all__ = ['get_traced_pymysql_connection', 'patch'] diff --git a/ddtrace/contrib/pymysql/patch.py b/ddtrace/contrib/pymysql/patch.py new file mode 100644 index 0000000000..ccb56781f8 --- /dev/null +++ b/ddtrace/contrib/pymysql/patch.py @@ -0,0 +1,39 @@ +# 3p +from ddtrace.vendor import wrapt +import pymysql + +# project +from ddtrace import Pin +from ddtrace.contrib.dbapi import TracedConnection +from ...ext import net, db + +CONN_ATTR_BY_TAG = { + net.TARGET_HOST: 'host', + net.TARGET_PORT: 'port', + db.USER: 'user', + db.NAME: 'db', +} + + +def patch(): + wrapt.wrap_function_wrapper('pymysql', 'connect', _connect) + + +def unpatch(): + if isinstance(pymysql.connect, wrapt.ObjectProxy): + pymysql.connect = pymysql.connect.__wrapped__ + + +def _connect(func, instance, args, kwargs): + conn = func(*args, **kwargs) + return patch_conn(conn) + + +def patch_conn(conn): + tags = {t: getattr(conn, a, '') for t, a in CONN_ATTR_BY_TAG.items()} + pin = Pin(service='pymysql', app='pymysql', tags=tags) + + # grab the metadata from the conn + wrapped = TracedConnection(conn, pin=pin) + pin.onto(wrapped) + return wrapped diff --git a/ddtrace/contrib/pymysql/tracers.py b/ddtrace/contrib/pymysql/tracers.py new file mode 100644 index 0000000000..d4d95bec55 --- /dev/null +++ b/ddtrace/contrib/pymysql/tracers.py @@ -0,0 +1,8 @@ +import pymysql.connections + +from ...utils.deprecation import deprecated + + +@deprecated(message='Use patching instead (see the docs).', version='1.0.0') +def get_traced_pymysql_connection(*args, **kwargs): + return pymysql.connections.Connection diff --git a/ddtrace/contrib/pyramid/__init__.py b/ddtrace/contrib/pyramid/__init__.py new file mode 100644 index 0000000000..d7a012f42b --- /dev/null +++ b/ddtrace/contrib/pyramid/__init__.py @@ -0,0 +1,57 @@ +r"""To trace requests from a Pyramid application, trace your application +config:: + + + from pyramid.config import Configurator + from ddtrace.contrib.pyramid import trace_pyramid + + settings = { + 'datadog_trace_service' : 'my-web-app-name', + } + + config = Configurator(settings=settings) + trace_pyramid(config) + + # use your config as normal. + config.add_route('index', '/') + +Available settings are: + +* ``datadog_trace_service``: change the `pyramid` service name +* ``datadog_trace_enabled``: sets if the Tracer is enabled or not +* ``datadog_distributed_tracing``: set it to ``False`` to disable Distributed Tracing +* ``datadog_analytics_enabled``: set it to ``True`` to enable generating APM events for Trace Search & Analytics + +If you use the ``pyramid.tweens`` settings value to set the tweens for your +application, you need to add ``ddtrace.contrib.pyramid:trace_tween_factory`` +explicitly to the list. For example:: + + settings = { + 'datadog_trace_service' : 'my-web-app-name', + 'pyramid.tweens', 'your_tween_no_1\\nyour_tween_no_2\\nddtrace.contrib.pyramid:trace_tween_factory', + } + + config = Configurator(settings=settings) + trace_pyramid(config) + + # use your config as normal. + config.add_route('index', '/') + +""" + +from ...utils.importlib import require_modules + + +required_modules = ['pyramid'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .trace import trace_pyramid, trace_tween_factory, includeme + from .patch import patch + + __all__ = [ + 'patch', + 'trace_pyramid', + 'trace_tween_factory', + 'includeme', + ] diff --git a/ddtrace/contrib/pyramid/constants.py b/ddtrace/contrib/pyramid/constants.py new file mode 100644 index 0000000000..176699d781 --- /dev/null +++ b/ddtrace/contrib/pyramid/constants.py @@ -0,0 +1,6 @@ +SETTINGS_SERVICE = 'datadog_trace_service' +SETTINGS_TRACER = 'datadog_tracer' +SETTINGS_TRACE_ENABLED = 'datadog_trace_enabled' +SETTINGS_DISTRIBUTED_TRACING = 'datadog_distributed_tracing' +SETTINGS_ANALYTICS_ENABLED = 'datadog_analytics_enabled' +SETTINGS_ANALYTICS_SAMPLE_RATE = 'datadog_analytics_sample_rate' diff --git a/ddtrace/contrib/pyramid/patch.py b/ddtrace/contrib/pyramid/patch.py new file mode 100644 index 0000000000..8224d183de --- /dev/null +++ b/ddtrace/contrib/pyramid/patch.py @@ -0,0 +1,84 @@ +import os + +from .trace import trace_pyramid, DD_TWEEN_NAME +from .constants import ( + SETTINGS_SERVICE, SETTINGS_DISTRIBUTED_TRACING, + SETTINGS_ANALYTICS_ENABLED, SETTINGS_ANALYTICS_SAMPLE_RATE, +) +from ...utils.formats import asbool, get_env + +import pyramid.config +from pyramid.path import caller_package + +from ddtrace.vendor import wrapt + +DD_PATCH = '_datadog_patch' + + +def patch(): + """ + Patch pyramid.config.Configurator + """ + if getattr(pyramid.config, DD_PATCH, False): + return + + setattr(pyramid.config, DD_PATCH, True) + _w = wrapt.wrap_function_wrapper + _w('pyramid.config', 'Configurator.__init__', traced_init) + + +def traced_init(wrapped, instance, args, kwargs): + settings = kwargs.pop('settings', {}) + service = os.environ.get('DATADOG_SERVICE_NAME') or 'pyramid' + distributed_tracing = asbool(get_env('pyramid', 'distributed_tracing', True)) + # DEV: integration-specific analytics flag can be not set but still enabled + # globally for web frameworks + analytics_enabled = get_env('pyramid', 'analytics_enabled') + if analytics_enabled is not None: + analytics_enabled = asbool(analytics_enabled) + analytics_sample_rate = get_env('pyramid', 'analytics_sample_rate', True) + trace_settings = { + SETTINGS_SERVICE: service, + SETTINGS_DISTRIBUTED_TRACING: distributed_tracing, + SETTINGS_ANALYTICS_ENABLED: analytics_enabled, + SETTINGS_ANALYTICS_SAMPLE_RATE: analytics_sample_rate, + } + # Update over top of the defaults + # DEV: If we did `settings.update(trace_settings)` then we would only ever + # have the default values. + trace_settings.update(settings) + # If the tweens are explicitly set with 'pyramid.tweens', we need to + # explicitly set our tween too since `add_tween` will be ignored. + insert_tween_if_needed(trace_settings) + kwargs['settings'] = trace_settings + + # `caller_package` works by walking a fixed amount of frames up the stack + # to find the calling package. So if we let the original `__init__` + # function call it, our wrapper will mess things up. + if not kwargs.get('package', None): + # Get the packge for the third frame up from this one. + # - ddtrace.contrib.pyramid.path + # - ddtrace.vendor.wrapt + # - (this is the frame we want) + # DEV: Default is `level=2` which will give us the package from `wrapt` + kwargs['package'] = caller_package(level=3) + + wrapped(*args, **kwargs) + trace_pyramid(instance) + + +def insert_tween_if_needed(settings): + tweens = settings.get('pyramid.tweens') + # If the list is empty, pyramid does not consider the tweens have been + # set explicitly. + # And if our tween is already there, nothing to do + if not tweens or not tweens.strip() or DD_TWEEN_NAME in tweens: + return + # pyramid.tweens.EXCVIEW is the name of built-in exception view provided by + # pyramid. We need our tween to be before it, otherwise unhandled + # exceptions will be caught before they reach our tween. + idx = tweens.find(pyramid.tweens.EXCVIEW) + if idx == -1: + settings['pyramid.tweens'] = tweens + '\n' + DD_TWEEN_NAME + else: + settings['pyramid.tweens'] = tweens[:idx] + DD_TWEEN_NAME + '\n' + tweens[idx:] diff --git a/ddtrace/contrib/pyramid/trace.py b/ddtrace/contrib/pyramid/trace.py new file mode 100644 index 0000000000..029352759b --- /dev/null +++ b/ddtrace/contrib/pyramid/trace.py @@ -0,0 +1,119 @@ +import pyramid.renderers +from pyramid.settings import asbool +from pyramid.httpexceptions import HTTPException +from ddtrace.vendor import wrapt + +# project +import ddtrace +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from ...ext import SpanTypes, http +from ...internal.logger import get_logger +from ...propagation.http import HTTPPropagator +from ...settings import config +from .constants import ( + SETTINGS_TRACER, + SETTINGS_SERVICE, + SETTINGS_TRACE_ENABLED, + SETTINGS_DISTRIBUTED_TRACING, + SETTINGS_ANALYTICS_ENABLED, + SETTINGS_ANALYTICS_SAMPLE_RATE, +) + + +log = get_logger(__name__) + +DD_TWEEN_NAME = 'ddtrace.contrib.pyramid:trace_tween_factory' +DD_SPAN = '_datadog_span' + + +def trace_pyramid(config): + config.include('ddtrace.contrib.pyramid') + + +def includeme(config): + # Add our tween just before the default exception handler + config.add_tween(DD_TWEEN_NAME, over=pyramid.tweens.EXCVIEW) + # ensure we only patch the renderer once. + if not isinstance(pyramid.renderers.RendererHelper.render, wrapt.ObjectProxy): + wrapt.wrap_function_wrapper('pyramid.renderers', 'RendererHelper.render', trace_render) + + +def trace_render(func, instance, args, kwargs): + # If the request is not traced, we do not trace + request = kwargs.get('request', {}) + if not request: + log.debug('No request passed to render, will not be traced') + return func(*args, **kwargs) + span = getattr(request, DD_SPAN, None) + if not span: + log.debug('No span found in request, will not be traced') + return func(*args, **kwargs) + + with span.tracer.trace('pyramid.render', span_type=SpanTypes.TEMPLATE) as span: + return func(*args, **kwargs) + + +def trace_tween_factory(handler, registry): + # configuration + settings = registry.settings + service = settings.get(SETTINGS_SERVICE) or 'pyramid' + tracer = settings.get(SETTINGS_TRACER) or ddtrace.tracer + enabled = asbool(settings.get(SETTINGS_TRACE_ENABLED, tracer.enabled)) + distributed_tracing = asbool(settings.get(SETTINGS_DISTRIBUTED_TRACING, True)) + + if enabled: + # make a request tracing function + def trace_tween(request): + if distributed_tracing: + propagator = HTTPPropagator() + context = propagator.extract(request.headers) + # only need to active the new context if something was propagated + if context.trace_id: + tracer.context_provider.activate(context) + with tracer.trace('pyramid.request', service=service, resource='404', span_type=SpanTypes.WEB) as span: + # Configure trace search sample rate + # DEV: pyramid is special case maintains separate configuration from config api + analytics_enabled = settings.get(SETTINGS_ANALYTICS_ENABLED) + + if ( + config.analytics_enabled and analytics_enabled is not False + ) or analytics_enabled is True: + span.set_tag( + ANALYTICS_SAMPLE_RATE_KEY, + settings.get(SETTINGS_ANALYTICS_SAMPLE_RATE, True) + ) + + setattr(request, DD_SPAN, span) # used to find the tracer in templates + response = None + try: + response = handler(request) + except HTTPException as e: + # If the exception is a pyramid HTTPException, + # that's still valuable information that isn't necessarily + # a 500. For instance, HTTPFound is a 302. + # As described in docs, Pyramid exceptions are all valid + # response types + response = e + raise + except BaseException: + span.set_tag(http.STATUS_CODE, 500) + raise + finally: + # set request tags + span.set_tag(http.URL, request.path_url) + span.set_tag(http.METHOD, request.method) + if config.pyramid.trace_query_string: + span.set_tag(http.QUERY_STRING, request.query_string) + if request.matched_route: + span.resource = '{} {}'.format(request.method, request.matched_route.name) + span.set_tag('pyramid.route.name', request.matched_route.name) + # set response tags + if response: + span.set_tag(http.STATUS_CODE, response.status_code) + if 500 <= response.status_code < 600: + span.error = 1 + return response + return trace_tween + + # if timing support is not enabled, return the original handler + return handler diff --git a/ddtrace/contrib/redis/__init__.py b/ddtrace/contrib/redis/__init__.py new file mode 100644 index 0000000000..50622016fb --- /dev/null +++ b/ddtrace/contrib/redis/__init__.py @@ -0,0 +1,29 @@ +"""Instrument redis to report Redis queries. + +``patch_all`` will automatically patch your Redis client to make it work. +:: + + from ddtrace import Pin, patch + import redis + + # If not patched yet, you can patch redis specifically + patch(redis=True) + + # This will report a span with the default settings + client = redis.StrictRedis(host="localhost", port=6379) + client.get("my-key") + + # Use a pin to specify metadata related to this client + Pin.override(client, service='redis-queue') +""" + +from ...utils.importlib import require_modules + +required_modules = ['redis', 'redis.client'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .patch import patch + from .tracers import get_traced_redis, get_traced_redis_from + + __all__ = ['get_traced_redis', 'get_traced_redis_from', 'patch'] diff --git a/ddtrace/contrib/redis/patch.py b/ddtrace/contrib/redis/patch.py new file mode 100644 index 0000000000..e1dddd2c9a --- /dev/null +++ b/ddtrace/contrib/redis/patch.py @@ -0,0 +1,114 @@ +# 3p +import redis +from ddtrace.vendor import wrapt + +# project +from ddtrace import config +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from ...pin import Pin +from ...ext import SpanTypes, redis as redisx +from ...utils.wrappers import unwrap +from .util import format_command_args, _extract_conn_tags + + +def patch(): + """Patch the instrumented methods + + This duplicated doesn't look nice. The nicer alternative is to use an ObjectProxy on top + of Redis and StrictRedis. However, it means that any "import redis.Redis" won't be instrumented. + """ + if getattr(redis, '_datadog_patch', False): + return + setattr(redis, '_datadog_patch', True) + + _w = wrapt.wrap_function_wrapper + + if redis.VERSION < (3, 0, 0): + _w('redis', 'StrictRedis.execute_command', traced_execute_command) + _w('redis', 'StrictRedis.pipeline', traced_pipeline) + _w('redis', 'Redis.pipeline', traced_pipeline) + _w('redis.client', 'BasePipeline.execute', traced_execute_pipeline) + _w('redis.client', 'BasePipeline.immediate_execute_command', traced_execute_command) + else: + _w('redis', 'Redis.execute_command', traced_execute_command) + _w('redis', 'Redis.pipeline', traced_pipeline) + _w('redis.client', 'Pipeline.execute', traced_execute_pipeline) + _w('redis.client', 'Pipeline.immediate_execute_command', traced_execute_command) + Pin(service=redisx.DEFAULT_SERVICE, app=redisx.APP).onto(redis.StrictRedis) + + +def unpatch(): + if getattr(redis, '_datadog_patch', False): + setattr(redis, '_datadog_patch', False) + + if redis.VERSION < (3, 0, 0): + unwrap(redis.StrictRedis, 'execute_command') + unwrap(redis.StrictRedis, 'pipeline') + unwrap(redis.Redis, 'pipeline') + unwrap(redis.client.BasePipeline, 'execute') + unwrap(redis.client.BasePipeline, 'immediate_execute_command') + else: + unwrap(redis.Redis, 'execute_command') + unwrap(redis.Redis, 'pipeline') + unwrap(redis.client.Pipeline, 'execute') + unwrap(redis.client.Pipeline, 'immediate_execute_command') + + +# +# tracing functions +# +def traced_execute_command(func, instance, args, kwargs): + pin = Pin.get_from(instance) + if not pin or not pin.enabled(): + return func(*args, **kwargs) + + with pin.tracer.trace(redisx.CMD, service=pin.service, span_type=SpanTypes.REDIS) as s: + query = format_command_args(args) + s.resource = query + s.set_tag(redisx.RAWCMD, query) + if pin.tags: + s.set_tags(pin.tags) + s.set_tags(_get_tags(instance)) + s.set_metric(redisx.ARGS_LEN, len(args)) + # set analytics sample rate if enabled + s.set_tag( + ANALYTICS_SAMPLE_RATE_KEY, + config.redis.get_analytics_sample_rate() + ) + # run the command + return func(*args, **kwargs) + + +def traced_pipeline(func, instance, args, kwargs): + pipeline = func(*args, **kwargs) + pin = Pin.get_from(instance) + if pin: + pin.onto(pipeline) + return pipeline + + +def traced_execute_pipeline(func, instance, args, kwargs): + pin = Pin.get_from(instance) + if not pin or not pin.enabled(): + return func(*args, **kwargs) + + # FIXME[matt] done in the agent. worth it? + cmds = [format_command_args(c) for c, _ in instance.command_stack] + resource = '\n'.join(cmds) + tracer = pin.tracer + with tracer.trace(redisx.CMD, resource=resource, service=pin.service, span_type=SpanTypes.REDIS) as s: + s.set_tag(redisx.RAWCMD, resource) + s.set_tags(_get_tags(instance)) + s.set_metric(redisx.PIPELINE_LEN, len(instance.command_stack)) + + # set analytics sample rate if enabled + s.set_tag( + ANALYTICS_SAMPLE_RATE_KEY, + config.redis.get_analytics_sample_rate() + ) + + return func(*args, **kwargs) + + +def _get_tags(conn): + return _extract_conn_tags(conn.connection_pool.connection_kwargs) diff --git a/ddtrace/contrib/redis/tracers.py b/ddtrace/contrib/redis/tracers.py new file mode 100644 index 0000000000..62912ce06c --- /dev/null +++ b/ddtrace/contrib/redis/tracers.py @@ -0,0 +1,20 @@ +from redis import StrictRedis + +from ...utils.deprecation import deprecated + + +DEFAULT_SERVICE = 'redis' + + +@deprecated(message='Use patching instead (see the docs).', version='1.0.0') +def get_traced_redis(ddtracer, service=DEFAULT_SERVICE, meta=None): + return _get_traced_redis(ddtracer, StrictRedis, service, meta) + + +@deprecated(message='Use patching instead (see the docs).', version='1.0.0') +def get_traced_redis_from(ddtracer, baseclass, service=DEFAULT_SERVICE, meta=None): + return _get_traced_redis(ddtracer, baseclass, service, meta) + + +def _get_traced_redis(ddtracer, baseclass, service, meta): + return baseclass diff --git a/ddtrace/contrib/redis/util.py b/ddtrace/contrib/redis/util.py new file mode 100644 index 0000000000..b2e73797b0 --- /dev/null +++ b/ddtrace/contrib/redis/util.py @@ -0,0 +1,52 @@ +""" +Some utils used by the dogtrace redis integration +""" +from ...compat import stringify +from ...ext import redis as redisx, net + +VALUE_PLACEHOLDER = '?' +VALUE_MAX_LEN = 100 +VALUE_TOO_LONG_MARK = '...' +CMD_MAX_LEN = 1000 + + +def _extract_conn_tags(conn_kwargs): + """ Transform redis conn info into dogtrace metas """ + try: + return { + net.TARGET_HOST: conn_kwargs['host'], + net.TARGET_PORT: conn_kwargs['port'], + redisx.DB: conn_kwargs['db'] or 0, + } + except Exception: + return {} + + +def format_command_args(args): + """Format a command by removing unwanted values + + Restrict what we keep from the values sent (with a SET, HGET, LPUSH, ...): + - Skip binary content + - Truncate + """ + length = 0 + out = [] + for arg in args: + try: + cmd = stringify(arg) + + if len(cmd) > VALUE_MAX_LEN: + cmd = cmd[:VALUE_MAX_LEN] + VALUE_TOO_LONG_MARK + + if length + len(cmd) > CMD_MAX_LEN: + prefix = cmd[:CMD_MAX_LEN - length] + out.append('%s%s' % (prefix, VALUE_TOO_LONG_MARK)) + break + + out.append(cmd) + length += len(cmd) + except Exception: + out.append(VALUE_PLACEHOLDER) + break + + return ' '.join(out) diff --git a/ddtrace/contrib/rediscluster/__init__.py b/ddtrace/contrib/rediscluster/__init__.py new file mode 100644 index 0000000000..86ad02f475 --- /dev/null +++ b/ddtrace/contrib/rediscluster/__init__.py @@ -0,0 +1,28 @@ +"""Instrument rediscluster to report Redis Cluster queries. + +``patch_all`` will automatically patch your Redis Cluster client to make it work. +:: + + from ddtrace import Pin, patch + import rediscluster + + # If not patched yet, you can patch redis specifically + patch(rediscluster=True) + + # This will report a span with the default settings + client = rediscluster.StrictRedisCluster(startup_nodes=[{'host':'localhost', 'port':'7000'}]) + client.get('my-key') + + # Use a pin to specify metadata related to this client + Pin.override(client, service='redis-queue') +""" + +from ...utils.importlib import require_modules + +required_modules = ['rediscluster', 'rediscluster.client'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .patch import patch + + __all__ = ['patch'] diff --git a/ddtrace/contrib/rediscluster/patch.py b/ddtrace/contrib/rediscluster/patch.py new file mode 100644 index 0000000000..b224174dcd --- /dev/null +++ b/ddtrace/contrib/rediscluster/patch.py @@ -0,0 +1,59 @@ +# 3p +import rediscluster +from ddtrace.vendor import wrapt + +# project +from ddtrace import config +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from ...pin import Pin +from ...ext import SpanTypes, redis as redisx +from ...utils.wrappers import unwrap +from ..redis.patch import traced_execute_command, traced_pipeline +from ..redis.util import format_command_args + + +def patch(): + """Patch the instrumented methods + """ + if getattr(rediscluster, '_datadog_patch', False): + return + setattr(rediscluster, '_datadog_patch', True) + + _w = wrapt.wrap_function_wrapper + _w('rediscluster', 'StrictRedisCluster.execute_command', traced_execute_command) + _w('rediscluster', 'StrictRedisCluster.pipeline', traced_pipeline) + _w('rediscluster', 'StrictClusterPipeline.execute', traced_execute_pipeline) + Pin(service=redisx.DEFAULT_SERVICE, app=redisx.APP).onto(rediscluster.StrictRedisCluster) + + +def unpatch(): + if getattr(rediscluster, '_datadog_patch', False): + setattr(rediscluster, '_datadog_patch', False) + unwrap(rediscluster.StrictRedisCluster, 'execute_command') + unwrap(rediscluster.StrictRedisCluster, 'pipeline') + unwrap(rediscluster.StrictClusterPipeline, 'execute') + + +# +# tracing functions +# + +def traced_execute_pipeline(func, instance, args, kwargs): + pin = Pin.get_from(instance) + if not pin or not pin.enabled(): + return func(*args, **kwargs) + + cmds = [format_command_args(c.args) for c in instance.command_stack] + resource = '\n'.join(cmds) + tracer = pin.tracer + with tracer.trace(redisx.CMD, resource=resource, service=pin.service, span_type=SpanTypes.REDIS) as s: + s.set_tag(redisx.RAWCMD, resource) + s.set_metric(redisx.PIPELINE_LEN, len(instance.command_stack)) + + # set analytics sample rate if enabled + s.set_tag( + ANALYTICS_SAMPLE_RATE_KEY, + config.rediscluster.get_analytics_sample_rate() + ) + + return func(*args, **kwargs) diff --git a/ddtrace/contrib/requests/__init__.py b/ddtrace/contrib/requests/__init__.py new file mode 100644 index 0000000000..c0dc661620 --- /dev/null +++ b/ddtrace/contrib/requests/__init__.py @@ -0,0 +1,52 @@ +""" +The ``requests`` integration traces all HTTP calls to internal or external services. +Auto instrumentation is available using the ``patch`` function that **must be called +before** importing the ``requests`` library. The following is an example:: + + from ddtrace import patch + patch(requests=True) + + import requests + requests.get("https://www.datadoghq.com") + +If you would prefer finer grained control, use a ``TracedSession`` object as you would a +``requests.Session``:: + + from ddtrace.contrib.requests import TracedSession + + session = TracedSession() + session.get("https://www.datadoghq.com") + +The library can be configured globally and per instance, using the Configuration API:: + + from ddtrace import config + + # disable distributed tracing globally + config.requests['distributed_tracing'] = False + + # enable trace analytics globally + config.requests['analytics_enabled'] = True + + # change the service name/distributed tracing only for this session + session = Session() + cfg = config.get_from(session) + cfg['service_name'] = 'auth-api' + cfg['analytics_enabled'] = True + +:ref:`Headers tracing ` is supported for this integration. +""" +from ...utils.importlib import require_modules + + +required_modules = ['requests'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .patch import patch, unpatch + from .session import TracedSession + + __all__ = [ + 'patch', + 'unpatch', + 'TracedSession', + ] diff --git a/ddtrace/contrib/requests/connection.py b/ddtrace/contrib/requests/connection.py new file mode 100644 index 0000000000..503d4a56c2 --- /dev/null +++ b/ddtrace/contrib/requests/connection.py @@ -0,0 +1,114 @@ +import ddtrace +from ddtrace import config +from ddtrace.http import store_request_headers, store_response_headers + +from ...compat import parse +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from ...ext import SpanTypes, http +from ...internal.logger import get_logger +from ...propagation.http import HTTPPropagator +from .constants import DEFAULT_SERVICE + +log = get_logger(__name__) + + +def _extract_service_name(session, span, hostname=None): + """Extracts the right service name based on the following logic: + - `requests` is the default service name + - users can change it via `session.service_name = 'clients'` + - if the Span doesn't have a parent, use the set service name or fallback to the default + - if the Span has a parent, use the set service name or the + parent service value if the set service name is the default + - if `split_by_domain` is used, always override users settings + and use the network location as a service name + + The priority can be represented as: + Updated service name > parent service name > default to `requests`. + """ + cfg = config.get_from(session) + if cfg["split_by_domain"] and hostname: + return hostname + + service_name = cfg["service_name"] + if service_name == DEFAULT_SERVICE and span._parent is not None and span._parent.service is not None: + service_name = span._parent.service + return service_name + + +def _wrap_send(func, instance, args, kwargs): + """Trace the `Session.send` instance method""" + # TODO[manu]: we already offer a way to provide the Global Tracer + # and is ddtrace.tracer; it's used only inside our tests and can + # be easily changed by providing a TracingTestCase that sets common + # tracing functionalities. + tracer = getattr(instance, "datadog_tracer", ddtrace.tracer) + + # skip if tracing is not enabled + if not tracer.enabled: + return func(*args, **kwargs) + + request = kwargs.get("request") or args[0] + if not request: + return func(*args, **kwargs) + + # sanitize url of query + parsed_uri = parse.urlparse(request.url) + hostname = parsed_uri.hostname + if parsed_uri.port: + hostname = "{}:{}".format(hostname, parsed_uri.port) + sanitized_url = parse.urlunparse( + ( + parsed_uri.scheme, + parsed_uri.netloc, + parsed_uri.path, + parsed_uri.params, + None, # drop parsed_uri.query + parsed_uri.fragment, + ) + ) + + with tracer.trace("requests.request", span_type=SpanTypes.HTTP) as span: + # update the span service name before doing any action + span.service = _extract_service_name(instance, span, hostname=hostname) + + # Configure trace search sample rate + # DEV: analytics enabled on per-session basis + cfg = config.get_from(instance) + analytics_enabled = cfg.get("analytics_enabled") + if analytics_enabled: + span.set_tag(ANALYTICS_SAMPLE_RATE_KEY, cfg.get("analytics_sample_rate", True)) + + # propagate distributed tracing headers + if cfg.get("distributed_tracing"): + propagator = HTTPPropagator() + propagator.inject(span.context, request.headers) + + # Storing request headers in the span + store_request_headers(request.headers, span, config.requests) + + response = None + try: + response = func(*args, **kwargs) + + # Storing response headers in the span. Note that response.headers is not a dict, but an iterable + # requests custom structure, that we convert to a dict + if hasattr(response, "headers"): + store_response_headers(dict(response.headers), span, config.requests) + return response + finally: + try: + span.set_tag(http.METHOD, request.method.upper()) + span.set_tag(http.URL, sanitized_url) + if config.requests.trace_query_string: + span.set_tag(http.QUERY_STRING, parsed_uri.query) + if response is not None: + span.set_tag(http.STATUS_CODE, response.status_code) + # `span.error` must be an integer + span.error = int(500 <= response.status_code) + # Storing response headers in the span. + # Note that response.headers is not a dict, but an iterable + # requests custom structure, that we convert to a dict + response_headers = dict(getattr(response, "headers", {})) + store_response_headers(response_headers, span, config.requests) + except Exception: + log.debug("requests: error adding tags", exc_info=True) diff --git a/ddtrace/contrib/requests/constants.py b/ddtrace/contrib/requests/constants.py new file mode 100644 index 0000000000..6ad02b6fe5 --- /dev/null +++ b/ddtrace/contrib/requests/constants.py @@ -0,0 +1 @@ +DEFAULT_SERVICE = 'requests' diff --git a/ddtrace/contrib/requests/legacy.py b/ddtrace/contrib/requests/legacy.py new file mode 100644 index 0000000000..a71ebbbc8c --- /dev/null +++ b/ddtrace/contrib/requests/legacy.py @@ -0,0 +1,31 @@ +# [Deprecation]: this module contains deprecated functions +# that will be removed in newer versions of the Tracer. +from ddtrace import config + +from ...utils.deprecation import deprecation + + +def _distributed_tracing(self): + """Deprecated: this method has been deprecated in favor of + the configuration system. It will be removed in newer versions + of the Tracer. + """ + deprecation( + name='client.distributed_tracing', + message='Use the configuration object instead `config.get_from(client)[\'distributed_tracing\'`', + version='1.0.0', + ) + return config.get_from(self)['distributed_tracing'] + + +def _distributed_tracing_setter(self, value): + """Deprecated: this method has been deprecated in favor of + the configuration system. It will be removed in newer versions + of the Tracer. + """ + deprecation( + name='client.distributed_tracing', + message='Use the configuration object instead `config.get_from(client)[\'distributed_tracing\'] = value`', + version='1.0.0', + ) + config.get_from(self)['distributed_tracing'] = value diff --git a/ddtrace/contrib/requests/patch.py b/ddtrace/contrib/requests/patch.py new file mode 100644 index 0000000000..0072481514 --- /dev/null +++ b/ddtrace/contrib/requests/patch.py @@ -0,0 +1,49 @@ +import requests + +from ddtrace.vendor.wrapt import wrap_function_wrapper as _w + +from ddtrace import config + +from ...pin import Pin +from ...utils.formats import asbool, get_env +from ...utils.wrappers import unwrap as _u +from .legacy import _distributed_tracing, _distributed_tracing_setter +from .constants import DEFAULT_SERVICE +from .connection import _wrap_send + +# requests default settings +config._add('requests', { + 'service_name': get_env('requests', 'service_name', DEFAULT_SERVICE), + 'distributed_tracing': asbool(get_env('requests', 'distributed_tracing', True)), + 'split_by_domain': asbool(get_env('requests', 'split_by_domain', False)), +}) + + +def patch(): + """Activate http calls tracing""" + if getattr(requests, '__datadog_patch', False): + return + setattr(requests, '__datadog_patch', True) + + _w('requests', 'Session.send', _wrap_send) + Pin( + service=config.requests['service_name'], + app='requests', + _config=config.requests, + ).onto(requests.Session) + + # [Backward compatibility]: `session.distributed_tracing` should point and + # update the `Pin` configuration instead. This block adds a property so that + # old implementations work as expected + fn = property(_distributed_tracing) + fn = fn.setter(_distributed_tracing_setter) + requests.Session.distributed_tracing = fn + + +def unpatch(): + """Disable traced sessions""" + if not getattr(requests, '__datadog_patch', False): + return + setattr(requests, '__datadog_patch', False) + + _u(requests.Session, 'send') diff --git a/ddtrace/contrib/requests/session.py b/ddtrace/contrib/requests/session.py new file mode 100644 index 0000000000..85f21a8082 --- /dev/null +++ b/ddtrace/contrib/requests/session.py @@ -0,0 +1,17 @@ +import requests + +from ddtrace.vendor.wrapt import wrap_function_wrapper as _w + +from .connection import _wrap_send + + +class TracedSession(requests.Session): + """TracedSession is a requests' Session that is already traced. + You can use it if you want a finer grained control for your + HTTP clients. + """ + pass + + +# always patch our `TracedSession` when imported +_w(TracedSession, 'send', _wrap_send) diff --git a/ddtrace/contrib/sqlalchemy/__init__.py b/ddtrace/contrib/sqlalchemy/__init__.py new file mode 100644 index 0000000000..b47586040c --- /dev/null +++ b/ddtrace/contrib/sqlalchemy/__init__.py @@ -0,0 +1,28 @@ +""" +To trace sqlalchemy queries, add instrumentation to the engine class +using the patch method that **must be called before** importing sqlalchemy:: + + # patch before importing `create_engine` + from ddtrace import Pin, patch + patch(sqlalchemy=True) + + # use SQLAlchemy as usual + from sqlalchemy import create_engine + + engine = create_engine('sqlite:///:memory:') + engine.connect().execute("SELECT COUNT(*) FROM users") + + # Use a PIN to specify metadata related to this engine + Pin.override(engine, service='replica-db') +""" +from ...utils.importlib import require_modules + + +required_modules = ['sqlalchemy', 'sqlalchemy.event'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .patch import patch, unpatch + from .engine import trace_engine + + __all__ = ['trace_engine', 'patch', 'unpatch'] diff --git a/ddtrace/contrib/sqlalchemy/engine.py b/ddtrace/contrib/sqlalchemy/engine.py new file mode 100644 index 0000000000..06308e8110 --- /dev/null +++ b/ddtrace/contrib/sqlalchemy/engine.py @@ -0,0 +1,146 @@ +""" +To trace sqlalchemy queries, add instrumentation to the engine class or +instance you are using:: + + from ddtrace import tracer + from ddtrace.contrib.sqlalchemy import trace_engine + from sqlalchemy import create_engine + + engine = create_engine('sqlite:///:memory:') + trace_engine(engine, tracer, 'my-database') + + engine.connect().execute('select count(*) from users') +""" +# 3p +from sqlalchemy.event import listen + +# project +import ddtrace + +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from ...ext import SpanTypes, sql as sqlx, net as netx +from ...pin import Pin +from ...settings import config + + +def trace_engine(engine, tracer=None, service=None): + """ + Add tracing instrumentation to the given sqlalchemy engine or instance. + + :param sqlalchemy.Engine engine: a SQLAlchemy engine class or instance + :param ddtrace.Tracer tracer: a tracer instance. will default to the global + :param str service: the name of the service to trace. + """ + tracer = tracer or ddtrace.tracer # by default use global + EngineTracer(tracer, service, engine) + + +def _wrap_create_engine(func, module, args, kwargs): + """Trace the SQLAlchemy engine, creating an `EngineTracer` + object that will listen to SQLAlchemy events. A PIN object + is attached to the engine instance so that it can be + used later. + """ + # the service name is set to `None` so that the engine + # name is used by default; users can update this setting + # using the PIN object + engine = func(*args, **kwargs) + EngineTracer(ddtrace.tracer, None, engine) + return engine + + +class EngineTracer(object): + + def __init__(self, tracer, service, engine): + self.tracer = tracer + self.engine = engine + self.vendor = sqlx.normalize_vendor(engine.name) + self.service = service or self.vendor + self.name = '%s.query' % self.vendor + + # attach the PIN + Pin( + app=self.vendor, + tracer=tracer, + service=self.service + ).onto(engine) + + listen(engine, 'before_cursor_execute', self._before_cur_exec) + listen(engine, 'after_cursor_execute', self._after_cur_exec) + listen(engine, 'dbapi_error', self._dbapi_error) + + def _before_cur_exec(self, conn, cursor, statement, *args): + pin = Pin.get_from(self.engine) + if not pin or not pin.enabled(): + # don't trace the execution + return + + span = pin.tracer.trace( + self.name, + service=pin.service, + span_type=SpanTypes.SQL, + resource=statement, + ) + + if not _set_tags_from_url(span, conn.engine.url): + _set_tags_from_cursor(span, self.vendor, cursor) + + # set analytics sample rate + sample_rate = config.sqlalchemy.get_analytics_sample_rate() + if sample_rate is not None: + span.set_tag(ANALYTICS_SAMPLE_RATE_KEY, sample_rate) + + def _after_cur_exec(self, conn, cursor, statement, *args): + pin = Pin.get_from(self.engine) + if not pin or not pin.enabled(): + # don't trace the execution + return + + span = pin.tracer.current_span() + if not span: + return + + try: + if cursor and cursor.rowcount >= 0: + span.set_tag(sqlx.ROWS, cursor.rowcount) + finally: + span.finish() + + def _dbapi_error(self, conn, cursor, statement, *args): + pin = Pin.get_from(self.engine) + if not pin or not pin.enabled(): + # don't trace the execution + return + + span = pin.tracer.current_span() + if not span: + return + + try: + span.set_traceback() + finally: + span.finish() + + +def _set_tags_from_url(span, url): + """ set connection tags from the url. return true if successful. """ + if url.host: + span.set_tag(netx.TARGET_HOST, url.host) + if url.port: + span.set_tag(netx.TARGET_PORT, url.port) + if url.database: + span.set_tag(sqlx.DB, url.database) + + return bool(span.get_tag(netx.TARGET_HOST)) + + +def _set_tags_from_cursor(span, vendor, cursor): + """ attempt to set db connection tags by introspecting the cursor. """ + if 'postgres' == vendor: + if hasattr(cursor, 'connection') and hasattr(cursor.connection, 'dsn'): + dsn = getattr(cursor.connection, 'dsn', None) + if dsn: + d = sqlx.parse_pg_dsn(dsn) + span.set_tag(sqlx.DB, d.get('dbname')) + span.set_tag(netx.TARGET_HOST, d.get('host')) + span.set_tag(netx.TARGET_PORT, d.get('port')) diff --git a/ddtrace/contrib/sqlalchemy/patch.py b/ddtrace/contrib/sqlalchemy/patch.py new file mode 100644 index 0000000000..ca3a3552b4 --- /dev/null +++ b/ddtrace/contrib/sqlalchemy/patch.py @@ -0,0 +1,24 @@ +import sqlalchemy + +from ddtrace.vendor.wrapt import wrap_function_wrapper as _w + +from .engine import _wrap_create_engine +from ...utils.wrappers import unwrap + + +def patch(): + if getattr(sqlalchemy.engine, '__datadog_patch', False): + return + setattr(sqlalchemy.engine, '__datadog_patch', True) + + # patch the engine creation function + _w('sqlalchemy', 'create_engine', _wrap_create_engine) + _w('sqlalchemy.engine', 'create_engine', _wrap_create_engine) + + +def unpatch(): + # unpatch sqlalchemy + if getattr(sqlalchemy.engine, '__datadog_patch', False): + setattr(sqlalchemy.engine, '__datadog_patch', False) + unwrap(sqlalchemy, 'create_engine') + unwrap(sqlalchemy.engine, 'create_engine') diff --git a/ddtrace/contrib/sqlite3/__init__.py b/ddtrace/contrib/sqlite3/__init__.py new file mode 100644 index 0000000000..ec45ebe706 --- /dev/null +++ b/ddtrace/contrib/sqlite3/__init__.py @@ -0,0 +1,23 @@ +"""Instrument sqlite3 to report SQLite queries. + +``patch_all`` will automatically patch your sqlite3 connection to make it work. +:: + + from ddtrace import Pin, patch + import sqlite3 + + # If not patched yet, you can patch sqlite3 specifically + patch(sqlite3=True) + + # This will report a span with the default settings + db = sqlite3.connect(":memory:") + cursor = db.cursor() + cursor.execute("select * from users where id = 1") + + # Use a pin to specify metadata related to this connection + Pin.override(db, service='sqlite-users') +""" +from .connection import connection_factory +from .patch import patch + +__all__ = ['connection_factory', 'patch'] diff --git a/ddtrace/contrib/sqlite3/connection.py b/ddtrace/contrib/sqlite3/connection.py new file mode 100644 index 0000000000..8088ab2c3d --- /dev/null +++ b/ddtrace/contrib/sqlite3/connection.py @@ -0,0 +1,8 @@ +from sqlite3 import Connection + +from ...utils.deprecation import deprecated + + +@deprecated(message='Use patching instead (see the docs).', version='1.0.0') +def connection_factory(*args, **kwargs): + return Connection diff --git a/ddtrace/contrib/sqlite3/patch.py b/ddtrace/contrib/sqlite3/patch.py new file mode 100644 index 0000000000..3cae546b2f --- /dev/null +++ b/ddtrace/contrib/sqlite3/patch.py @@ -0,0 +1,66 @@ +# 3p +import sqlite3 +import sqlite3.dbapi2 +from ddtrace.vendor import wrapt + +# project +from ...contrib.dbapi import TracedConnection, TracedCursor, FetchTracedCursor +from ...pin import Pin +from ...settings import config + +# Original connect method +_connect = sqlite3.connect + + +def patch(): + wrapped = wrapt.FunctionWrapper(_connect, traced_connect) + + setattr(sqlite3, 'connect', wrapped) + setattr(sqlite3.dbapi2, 'connect', wrapped) + + +def unpatch(): + sqlite3.connect = _connect + sqlite3.dbapi2.connect = _connect + + +def traced_connect(func, _, args, kwargs): + conn = func(*args, **kwargs) + return patch_conn(conn) + + +def patch_conn(conn): + wrapped = TracedSQLite(conn) + Pin(service='sqlite', app='sqlite').onto(wrapped) + return wrapped + + +class TracedSQLiteCursor(TracedCursor): + def executemany(self, *args, **kwargs): + # DEV: SQLite3 Cursor.execute always returns back the cursor instance + super(TracedSQLiteCursor, self).executemany(*args, **kwargs) + return self + + def execute(self, *args, **kwargs): + # DEV: SQLite3 Cursor.execute always returns back the cursor instance + super(TracedSQLiteCursor, self).execute(*args, **kwargs) + return self + + +class TracedSQLiteFetchCursor(TracedSQLiteCursor, FetchTracedCursor): + pass + + +class TracedSQLite(TracedConnection): + def __init__(self, conn, pin=None, cursor_cls=None): + if not cursor_cls: + # Do not trace `fetch*` methods by default + cursor_cls = TracedSQLiteCursor + if config.dbapi2.trace_fetch_methods: + cursor_cls = TracedSQLiteFetchCursor + + super(TracedSQLite, self).__init__(conn, pin=pin, cursor_cls=cursor_cls) + + def execute(self, *args, **kwargs): + # sqlite has a few extra sugar functions + return self.cursor().execute(*args, **kwargs) diff --git a/ddtrace/contrib/tornado/__init__.py b/ddtrace/contrib/tornado/__init__.py new file mode 100644 index 0000000000..d81bc7d4cf --- /dev/null +++ b/ddtrace/contrib/tornado/__init__.py @@ -0,0 +1,126 @@ +r""" +The Tornado integration traces all ``RequestHandler`` defined in a Tornado web application. +Auto instrumentation is available using the ``patch`` function that **must be called before** +importing the tornado library. + +**Note:** Tornado 5 and 6 supported only for Python 3.7. + +The following is an example:: + + # patch before importing tornado and concurrent.futures + from ddtrace import tracer, patch + patch(tornado=True) + + import tornado.web + import tornado.gen + import tornado.ioloop + + # create your handlers + class MainHandler(tornado.web.RequestHandler): + @tornado.gen.coroutine + def get(self): + self.write("Hello, world") + + # create your application + app = tornado.web.Application([ + (r'/', MainHandler), + ]) + + # and run it as usual + app.listen(8888) + tornado.ioloop.IOLoop.current().start() + +When any type of ``RequestHandler`` is hit, a request root span is automatically created. If +you want to trace more parts of your application, you can use the ``wrap()`` decorator and +the ``trace()`` method as usual:: + + class MainHandler(tornado.web.RequestHandler): + @tornado.gen.coroutine + def get(self): + yield self.notify() + yield self.blocking_method() + with tracer.trace('tornado.before_write') as span: + # trace more work in the handler + + @tracer.wrap('tornado.executor_handler') + @tornado.concurrent.run_on_executor + def blocking_method(self): + # do something expensive + + @tracer.wrap('tornado.notify', service='tornado-notification') + @tornado.gen.coroutine + def notify(self): + # do something + +If you are overriding the ``on_finish`` or ``log_exception`` methods on a +``RequestHandler``, you will need to call the super method to ensure the +tracer's patched methods are called:: + + class MainHandler(tornado.web.RequestHandler): + @tornado.gen.coroutine + def get(self): + self.write("Hello, world") + + def on_finish(self): + super(MainHandler, self).on_finish() + # do other clean-up + + def log_exception(self, typ, value, tb): + super(MainHandler, self).log_exception(typ, value, tb) + # do other logging + +Tornado settings can be used to change some tracing configuration, like:: + + settings = { + 'datadog_trace': { + 'default_service': 'my-tornado-app', + 'tags': {'env': 'production'}, + 'distributed_tracing': False, + 'analytics_enabled': False, + 'settings': { + 'FILTERS': [ + FilterRequestsOnUrl(r'http://test\\.example\\.com'), + ], + }, + }, + } + + app = tornado.web.Application([ + (r'/', MainHandler), + ], **settings) + +The available settings are: + +* ``default_service`` (default: `tornado-web`): set the service name used by the tracer. Usually + this configuration must be updated with a meaningful name. +* ``tags`` (default: `{}`): set global tags that should be applied to all spans. +* ``enabled`` (default: `True`): define if the tracer is enabled or not. If set to `false`, the + code is still instrumented but no spans are sent to the APM agent. +* ``distributed_tracing`` (default: `True`): enable distributed tracing if this is called + remotely from an instrumented application. + We suggest to enable it only for internal services where headers are under your control. +* ``analytics_enabled`` (default: `None`): enable generating APM events for Trace Search & Analytics. +* ``agent_hostname`` (default: `localhost`): define the hostname of the APM agent. +* ``agent_port`` (default: `8126`): define the port of the APM agent. +* ``settings`` (default: ``{}``): Tracer extra settings used to change, for instance, the filtering behavior. +""" +from ...utils.importlib import require_modules + + +required_modules = ['tornado'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .stack_context import run_with_trace_context, TracerStackContext + + context_provider = TracerStackContext() + + from .patch import patch, unpatch + + __all__ = [ + 'patch', + 'unpatch', + 'context_provider', + 'run_with_trace_context', + 'TracerStackContext', + ] diff --git a/ddtrace/contrib/tornado/application.py b/ddtrace/contrib/tornado/application.py new file mode 100644 index 0000000000..a413197d39 --- /dev/null +++ b/ddtrace/contrib/tornado/application.py @@ -0,0 +1,56 @@ +import ddtrace + +from tornado import template + +from . import decorators, context_provider +from .constants import CONFIG_KEY + + +def tracer_config(__init__, app, args, kwargs): + """ + Wrap Tornado web application so that we can configure services info and + tracing settings after the initialization. + """ + # call the Application constructor + __init__(*args, **kwargs) + + # default settings + settings = { + 'tracer': ddtrace.tracer, + 'default_service': 'tornado-web', + 'distributed_tracing': True, + 'analytics_enabled': None + } + + # update defaults with users settings + user_settings = app.settings.get(CONFIG_KEY) + if user_settings: + settings.update(user_settings) + + app.settings[CONFIG_KEY] = settings + tracer = settings['tracer'] + service = settings['default_service'] + + # extract extra settings + extra_settings = settings.get('settings', {}) + + # the tracer must use the right Context propagation and wrap executor; + # this action is done twice because the patch() method uses the + # global tracer while here we can have a different instance (even if + # this is not usual). + tracer.configure( + context_provider=context_provider, + wrap_executor=decorators.wrap_executor, + enabled=settings.get('enabled', None), + hostname=settings.get('agent_hostname', None), + port=settings.get('agent_port', None), + settings=extra_settings, + ) + + # set global tags if any + tags = settings.get('tags', None) + if tags: + tracer.set_tags(tags) + + # configure the PIN object for template rendering + ddtrace.Pin(app='tornado', service=service, tracer=tracer).onto(template) diff --git a/ddtrace/contrib/tornado/compat.py b/ddtrace/contrib/tornado/compat.py new file mode 100644 index 0000000000..4f78d77cc5 --- /dev/null +++ b/ddtrace/contrib/tornado/compat.py @@ -0,0 +1,12 @@ +try: + # detect if concurrent.futures is available as a Python + # stdlib or Python 2.7 backport + from ..futures import patch as wrap_futures, unpatch as unwrap_futures + futures_available = True +except ImportError: + def wrap_futures(): + pass + + def unwrap_futures(): + pass + futures_available = False diff --git a/ddtrace/contrib/tornado/constants.py b/ddtrace/contrib/tornado/constants.py new file mode 100644 index 0000000000..7052ee3dfa --- /dev/null +++ b/ddtrace/contrib/tornado/constants.py @@ -0,0 +1,9 @@ +""" +This module defines Tornado settings that are shared between +integration modules. +""" +CONFIG_KEY = 'datadog_trace' +REQUEST_CONTEXT_KEY = 'datadog_context' +REQUEST_SPAN_KEY = '__datadog_request_span' +FUTURE_SPAN_KEY = '__datadog_future_span' +PARENT_SPAN_KEY = '__datadog_parent_span' diff --git a/ddtrace/contrib/tornado/decorators.py b/ddtrace/contrib/tornado/decorators.py new file mode 100644 index 0000000000..eecb465b63 --- /dev/null +++ b/ddtrace/contrib/tornado/decorators.py @@ -0,0 +1,151 @@ +import ddtrace +import sys + +from functools import wraps + +from .constants import FUTURE_SPAN_KEY, PARENT_SPAN_KEY +from .stack_context import TracerStackContext + + +def _finish_span(future): + """ + Finish the span if it's attached to the given ``Future`` object. + This method is a Tornado callback used to close a decorated function + executed as a coroutine or as a synchronous function in another thread. + """ + span = getattr(future, FUTURE_SPAN_KEY, None) + + if span: + # `tornado.concurrent.Future` in PY3 tornado>=4.0,<5 has `exc_info` + if callable(getattr(future, 'exc_info', None)): + # retrieve the exception from the coroutine object + exc_info = future.exc_info() + if exc_info: + span.set_exc_info(*exc_info) + elif callable(getattr(future, 'exception', None)): + # in tornado>=4.0,<5 with PY2 `concurrent.futures._base.Future` + # `exception_info()` returns `(exception, traceback)` but + # `exception()` only returns the first element in the tuple + if callable(getattr(future, 'exception_info', None)): + exc, exc_tb = future.exception_info() + if exc and exc_tb: + exc_type = type(exc) + span.set_exc_info(exc_type, exc, exc_tb) + # in tornado>=5 with PY3, `tornado.concurrent.Future` is alias to + # `asyncio.Future` in PY3 `exc_info` not available, instead use + # exception method + else: + exc = future.exception() + if exc: + # we expect exception object to have a traceback attached + if hasattr(exc, '__traceback__'): + exc_type = type(exc) + exc_tb = getattr(exc, '__traceback__', None) + span.set_exc_info(exc_type, exc, exc_tb) + # if all else fails use currently handled exception for + # current thread + else: + span.set_exc_info(*sys.exc_info()) + + span.finish() + + +def _run_on_executor(run_on_executor, _, params, kw_params): + """ + Wrap the `run_on_executor` function so that when a function is executed + in a different thread, we pass the current parent Span to the intermediate + function that will execute the original call. The original function + is then executed within a `TracerStackContext` so that `tracer.trace()` + can be used as usual, both with empty or existing `Context`. + """ + def pass_context_decorator(fn): + """ + Decorator that is used to wrap the original `run_on_executor_decorator` + so that we can pass the current active context before the `executor.submit` + is called. In this case we get the `parent_span` reference and we pass + that reference to `fn` reference. Because in the outer wrapper we replace + the original call with our `traced_wrapper`, we're sure that the `parent_span` + is passed to our intermediate function and not to the user function. + """ + @wraps(fn) + def wrapper(*args, **kwargs): + # from the current context, retrive the active span + current_ctx = ddtrace.tracer.get_call_context() + parent_span = getattr(current_ctx, '_current_span', None) + + # pass the current parent span in the Future call so that + # it can be retrieved later + kwargs.update({PARENT_SPAN_KEY: parent_span}) + return fn(*args, **kwargs) + return wrapper + + # we expect exceptions here if the `run_on_executor` is called with + # wrong arguments; in that case we should not do anything because + # the exception must not be handled here + decorator = run_on_executor(*params, **kw_params) + + # `run_on_executor` can be called with arguments; in this case we + # return an inner decorator that holds the real function that should be + # called + if decorator.__module__ == 'tornado.concurrent': + def run_on_executor_decorator(deco_fn): + def inner_traced_wrapper(*args, **kwargs): + # retrieve the parent span from the function kwargs + parent_span = kwargs.pop(PARENT_SPAN_KEY, None) + return run_executor_stack_context(deco_fn, args, kwargs, parent_span) + return pass_context_decorator(decorator(inner_traced_wrapper)) + + return run_on_executor_decorator + + # return our wrapper function that executes an intermediate function to + # trace the real execution in a different thread + def traced_wrapper(*args, **kwargs): + # retrieve the parent span from the function kwargs + parent_span = kwargs.pop(PARENT_SPAN_KEY, None) + return run_executor_stack_context(params[0], args, kwargs, parent_span) + + return pass_context_decorator(run_on_executor(traced_wrapper)) + + +def run_executor_stack_context(fn, args, kwargs, parent_span): + """ + This intermediate function is always executed in a newly created thread. Here + using a `TracerStackContext` is legit because this function doesn't interfere + with the main thread loop. `StackContext` states are thread-local and retrieving + the context here will always bring to an empty `Context`. + """ + with TracerStackContext(): + ctx = ddtrace.tracer.get_call_context() + ctx._current_span = parent_span + return fn(*args, **kwargs) + + +def wrap_executor(tracer, fn, args, kwargs, span_name, service=None, resource=None, span_type=None): + """ + Wrap executor function used to change the default behavior of + ``Tracer.wrap()`` method. A decorated Tornado function can be + a regular function or a coroutine; if a coroutine is decorated, a + span is attached to the returned ``Future`` and a callback is set + so that it will close the span when the ``Future`` is done. + """ + span = tracer.trace(span_name, service=service, resource=resource, span_type=span_type) + + # catch standard exceptions raised in synchronous executions + try: + future = fn(*args, **kwargs) + + # duck-typing: if it has `add_done_callback` it's a Future + # object whatever is the underlying implementation + if callable(getattr(future, 'add_done_callback', None)): + setattr(future, FUTURE_SPAN_KEY, span) + future.add_done_callback(_finish_span) + else: + # we don't have a future so the `future` variable + # holds the result of the function + span.finish() + except Exception: + span.set_traceback() + span.finish() + raise + + return future diff --git a/ddtrace/contrib/tornado/handlers.py b/ddtrace/contrib/tornado/handlers.py new file mode 100644 index 0000000000..2699c2e15c --- /dev/null +++ b/ddtrace/contrib/tornado/handlers.py @@ -0,0 +1,105 @@ +from tornado.web import HTTPError + +from .constants import CONFIG_KEY, REQUEST_CONTEXT_KEY, REQUEST_SPAN_KEY +from .stack_context import TracerStackContext +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from ...ext import SpanTypes, http +from ...propagation.http import HTTPPropagator +from ...settings import config + + +def execute(func, handler, args, kwargs): + """ + Wrap the handler execute method so that the entire request is within the same + ``TracerStackContext``. This simplifies users code when the automatic ``Context`` + retrieval is used via ``Tracer.trace()`` method. + """ + # retrieve tracing settings + settings = handler.settings[CONFIG_KEY] + tracer = settings['tracer'] + service = settings['default_service'] + distributed_tracing = settings['distributed_tracing'] + + with TracerStackContext(): + # attach the context to the request + setattr(handler.request, REQUEST_CONTEXT_KEY, tracer.get_call_context()) + + # Read and use propagated context from HTTP headers + if distributed_tracing: + propagator = HTTPPropagator() + context = propagator.extract(handler.request.headers) + if context.trace_id: + tracer.context_provider.activate(context) + + # store the request span in the request so that it can be used later + request_span = tracer.trace( + 'tornado.request', + service=service, + span_type=SpanTypes.WEB + ) + # set analytics sample rate + # DEV: tornado is special case maintains separate configuration from config api + analytics_enabled = settings['analytics_enabled'] + if (config.analytics_enabled and analytics_enabled is not False) or analytics_enabled is True: + request_span.set_tag( + ANALYTICS_SAMPLE_RATE_KEY, + settings.get('analytics_sample_rate', True) + ) + + setattr(handler.request, REQUEST_SPAN_KEY, request_span) + + return func(*args, **kwargs) + + +def on_finish(func, handler, args, kwargs): + """ + Wrap the ``RequestHandler.on_finish`` method. This is the last executed method + after the response has been sent, and it's used to retrieve and close the + current request span (if available). + """ + request = handler.request + request_span = getattr(request, REQUEST_SPAN_KEY, None) + if request_span: + # use the class name as a resource; if an handler is not available, the + # default handler class will be used so we don't pollute the resource + # space here + klass = handler.__class__ + request_span.resource = '{}.{}'.format(klass.__module__, klass.__name__) + request_span.set_tag('http.method', request.method) + request_span.set_tag('http.status_code', handler.get_status()) + request_span.set_tag(http.URL, request.full_url().rsplit('?', 1)[0]) + if config.tornado.trace_query_string: + request_span.set_tag(http.QUERY_STRING, request.query) + request_span.finish() + + return func(*args, **kwargs) + + +def log_exception(func, handler, args, kwargs): + """ + Wrap the ``RequestHandler.log_exception``. This method is called when an + Exception is not handled in the user code. In this case, we save the exception + in the current active span. If the Tornado ``Finish`` exception is raised, this wrapper + will not be called because ``Finish`` is not an exception. + """ + # safe-guard: expected arguments -> log_exception(self, typ, value, tb) + value = args[1] if len(args) == 3 else None + if not value: + return func(*args, **kwargs) + + # retrieve the current span + tracer = handler.settings[CONFIG_KEY]['tracer'] + current_span = tracer.current_span() + + if isinstance(value, HTTPError): + # Tornado uses HTTPError exceptions to stop and return a status code that + # is not a 2xx. In this case we want to check the status code to be sure that + # only 5xx are traced as errors, while any other HTTPError exception is handled as + # usual. + if 500 <= value.status_code <= 599: + current_span.set_exc_info(*args) + else: + # any other uncaught exception should be reported as error + current_span.set_exc_info(*args) + + return func(*args, **kwargs) diff --git a/ddtrace/contrib/tornado/patch.py b/ddtrace/contrib/tornado/patch.py new file mode 100644 index 0000000000..81a671ba77 --- /dev/null +++ b/ddtrace/contrib/tornado/patch.py @@ -0,0 +1,58 @@ +import ddtrace +import tornado + +from ddtrace.vendor.wrapt import wrap_function_wrapper as _w + +from . import handlers, application, decorators, template, compat, context_provider +from ...utils.wrappers import unwrap as _u + + +def patch(): + """ + Tracing function that patches the Tornado web application so that it will be + traced using the given ``tracer``. + """ + # patch only once + if getattr(tornado, '__datadog_patch', False): + return + setattr(tornado, '__datadog_patch', True) + + # patch Application to initialize properly our settings and tracer + _w('tornado.web', 'Application.__init__', application.tracer_config) + + # patch RequestHandler to trace all Tornado handlers + _w('tornado.web', 'RequestHandler._execute', handlers.execute) + _w('tornado.web', 'RequestHandler.on_finish', handlers.on_finish) + _w('tornado.web', 'RequestHandler.log_exception', handlers.log_exception) + + # patch Template system + _w('tornado.template', 'Template.generate', template.generate) + + # patch Python Futures if available when an Executor pool is used + compat.wrap_futures() + + # configure the global tracer + ddtrace.tracer.configure( + context_provider=context_provider, + wrap_executor=decorators.wrap_executor, + ) + + +def unpatch(): + """ + Remove all tracing functions in a Tornado web application. + """ + if not getattr(tornado, '__datadog_patch', False): + return + setattr(tornado, '__datadog_patch', False) + + # unpatch Tornado + _u(tornado.web.RequestHandler, '_execute') + _u(tornado.web.RequestHandler, 'on_finish') + _u(tornado.web.RequestHandler, 'log_exception') + _u(tornado.web.Application, '__init__') + _u(tornado.concurrent, 'run_on_executor') + _u(tornado.template.Template, 'generate') + + # unpatch `futures` + compat.unwrap_futures() diff --git a/ddtrace/contrib/tornado/stack_context.py b/ddtrace/contrib/tornado/stack_context.py new file mode 100644 index 0000000000..367b97e1f1 --- /dev/null +++ b/ddtrace/contrib/tornado/stack_context.py @@ -0,0 +1,142 @@ +import tornado +from tornado.ioloop import IOLoop +import sys + +from ...context import Context +from ...provider import DefaultContextProvider + +# tornado.stack_context deprecated in Tornado 5 removed in Tornado 6 +# instead use DefaultContextProvider with ContextVarContextManager for asyncio +_USE_STACK_CONTEXT = not ( + sys.version_info >= (3, 7) and tornado.version_info >= (5, 0) +) + +if _USE_STACK_CONTEXT: + from tornado.stack_context import StackContextInconsistentError, _state + + class TracerStackContext(DefaultContextProvider): + """ + A context manager that manages ``Context`` instances in a thread-local state. + It must be used everytime a Tornado's handler or coroutine is used within a + tracing Context. It is meant to work like a traditional ``StackContext``, + preserving the state across asynchronous calls. + + Everytime a new manager is initialized, a new ``Context()`` is created for + this execution flow. A context created in a ``TracerStackContext`` is not + shared between different threads. + + This implementation follows some suggestions provided here: + https://github.com/tornadoweb/tornado/issues/1063 + """ + def __init__(self): + # DEV: skip resetting context manager since TracerStackContext is used + # as a with-statement context where we do not want to be clearing the + # current context for a thread or task + super(TracerStackContext, self).__init__(reset_context_manager=False) + self._active = True + self._context = Context() + + def enter(self): + """ + Required to preserve the ``StackContext`` protocol. + """ + pass + + def exit(self, type, value, traceback): # noqa: A002 + """ + Required to preserve the ``StackContext`` protocol. + """ + pass + + def __enter__(self): + self.old_contexts = _state.contexts + self.new_contexts = (self.old_contexts[0] + (self,), self) + _state.contexts = self.new_contexts + return self + + def __exit__(self, type, value, traceback): # noqa: A002 + final_contexts = _state.contexts + _state.contexts = self.old_contexts + + if final_contexts is not self.new_contexts: + raise StackContextInconsistentError( + 'stack_context inconsistency (may be caused by yield ' + 'within a "with TracerStackContext" block)') + + # break the reference to allow faster GC on CPython + self.new_contexts = None + + def deactivate(self): + self._active = False + + def _has_io_loop(self): + """Helper to determine if we are currently in an IO loop""" + return getattr(IOLoop._current, 'instance', None) is not None + + def _has_active_context(self): + """Helper to determine if we have an active context or not""" + if not self._has_io_loop(): + return self._local._has_active_context() + else: + # we're inside a Tornado loop so the TracerStackContext is used + return self._get_state_active_context() is not None + + def _get_state_active_context(self): + """Helper to get the currently active context from the TracerStackContext""" + # we're inside a Tornado loop so the TracerStackContext is used + for stack in reversed(_state.contexts[0]): + if isinstance(stack, self.__class__) and stack._active: + return stack._context + return None + + def active(self): + """ + Return the ``Context`` from the current execution flow. This method can be + used inside a Tornado coroutine to retrieve and use the current tracing context. + If used in a separated Thread, the `_state` thread-local storage is used to + propagate the current Active context from the `MainThread`. + """ + if not self._has_io_loop(): + # if a Tornado loop is not available, it means that this method + # has been called from a synchronous code, so we can rely in a + # thread-local storage + return self._local.get() + else: + # we're inside a Tornado loop so the TracerStackContext is used + return self._get_state_active_context() + + def activate(self, ctx): + """ + Set the active ``Context`` for this async execution. If a ``TracerStackContext`` + is not found, the context is discarded. + If used in a separated Thread, the `_state` thread-local storage is used to + propagate the current Active context from the `MainThread`. + """ + if not self._has_io_loop(): + # because we're outside of an asynchronous execution, we store + # the current context in a thread-local storage + self._local.set(ctx) + else: + # we're inside a Tornado loop so the TracerStackContext is used + for stack_ctx in reversed(_state.contexts[0]): + if isinstance(stack_ctx, self.__class__) and stack_ctx._active: + stack_ctx._context = ctx + return ctx +else: + # no-op when not using stack_context + class TracerStackContext(DefaultContextProvider): + def __enter__(self): + pass + + def __exit__(self, *exc): + pass + + +def run_with_trace_context(func, *args, **kwargs): + """ + Run the given function within a traced StackContext. This function is used to + trace Tornado web handlers, but can be used in your code to trace coroutines + execution. + """ + with TracerStackContext(): + return func(*args, **kwargs) diff --git a/ddtrace/contrib/tornado/template.py b/ddtrace/contrib/tornado/template.py new file mode 100644 index 0000000000..d41bc601aa --- /dev/null +++ b/ddtrace/contrib/tornado/template.py @@ -0,0 +1,31 @@ +from tornado import template + +from ddtrace import Pin + +from ...ext import SpanTypes + + +def generate(func, renderer, args, kwargs): + """ + Wrap the ``generate`` method used in templates rendering. Because the method + may be called everywhere, the execution is traced in a tracer StackContext that + inherits the current one if it's already available. + """ + # get the module pin + pin = Pin.get_from(template) + if not pin or not pin.enabled(): + return func(*args, **kwargs) + + # change the resource and the template name + # if it's created from a string instead of a file + if '' in renderer.name: + resource = template_name = 'render_string' + else: + resource = template_name = renderer.name + + # trace the original call + with pin.tracer.trace( + 'tornado.template', service=pin.service, resource=resource, span_type=SpanTypes.TEMPLATE + ) as span: + span.set_meta('tornado.template_name', template_name) + return func(*args, **kwargs) diff --git a/ddtrace/contrib/util.py b/ddtrace/contrib/util.py new file mode 100644 index 0000000000..ae96cc4c12 --- /dev/null +++ b/ddtrace/contrib/util.py @@ -0,0 +1,16 @@ +# [Backward compatibility]: keep importing modules functions +from ..utils.deprecation import deprecation +from ..utils.importlib import require_modules, func_name, module_name + + +deprecation( + name='ddtrace.contrib.util', + message='Use `ddtrace.utils.importlib` module instead', + version='1.0.0', +) + +__all__ = [ + 'require_modules', + 'func_name', + 'module_name', +] diff --git a/ddtrace/contrib/vertica/__init__.py b/ddtrace/contrib/vertica/__init__.py new file mode 100644 index 0000000000..763c668575 --- /dev/null +++ b/ddtrace/contrib/vertica/__init__.py @@ -0,0 +1,51 @@ +""" +The Vertica integration will trace queries made using the vertica-python +library. + +Vertica will be automatically instrumented with ``patch_all``, or when using +the ``ddtrace-run`` command. + +Vertica is instrumented on import. To instrument Vertica manually use the +``patch`` function. Note the ordering of the following statements:: + + from ddtrace import patch + patch(vertica=True) + + import vertica_python + + # use vertica_python like usual + + +To configure the Vertica integration globally you can use the ``Config`` API:: + + from ddtrace import config, patch + patch(vertica=True) + + config.vertica['service_name'] = 'my-vertica-database' + + +To configure the Vertica integration on an instance-per-instance basis use the +``Pin`` API:: + + from ddtrace import Pin, patch, Tracer + patch(vertica=True) + + import vertica_python + + custom_tracer = Tracer() + conn = vertica_python.connect(**YOUR_VERTICA_CONFIG) + + # override the service and tracer to be used + Pin.override(conn, service='myverticaservice', tracer=custom_tracer) +""" + +from ...utils.importlib import require_modules + + +required_modules = ['vertica_python'] + +with require_modules(required_modules) as missing_modules: + if not missing_modules: + from .patch import patch, unpatch + + __all__ = [patch, unpatch] diff --git a/ddtrace/contrib/vertica/constants.py b/ddtrace/contrib/vertica/constants.py new file mode 100644 index 0000000000..95c3d763a8 --- /dev/null +++ b/ddtrace/contrib/vertica/constants.py @@ -0,0 +1,2 @@ +# Service info +APP = 'vertica' diff --git a/ddtrace/contrib/vertica/patch.py b/ddtrace/contrib/vertica/patch.py new file mode 100644 index 0000000000..f893b94b6f --- /dev/null +++ b/ddtrace/contrib/vertica/patch.py @@ -0,0 +1,233 @@ +import importlib + +from ddtrace.vendor import wrapt + +import ddtrace +from ...constants import ANALYTICS_SAMPLE_RATE_KEY +from ...ext import SpanTypes, db as dbx +from ...ext import net +from ...internal.logger import get_logger +from ...pin import Pin +from ...settings import config +from ...utils.wrappers import unwrap +from .constants import APP + + +log = get_logger(__name__) + +_PATCHED = False + + +def copy_span_start(instance, span, conf, *args, **kwargs): + span.resource = args[0] + + +def execute_span_start(instance, span, conf, *args, **kwargs): + span.resource = args[0] + + +def execute_span_end(instance, result, span, conf, *args, **kwargs): + span.set_metric(dbx.ROWCOUNT, instance.rowcount) + + +def fetch_span_end(instance, result, span, conf, *args, **kwargs): + span.set_metric(dbx.ROWCOUNT, instance.rowcount) + + +def cursor_span_end(instance, cursor, _, conf, *args, **kwargs): + tags = {} + tags[net.TARGET_HOST] = instance.options['host'] + tags[net.TARGET_PORT] = instance.options['port'] + if 'user' in instance.options: + tags[dbx.USER] = instance.options['user'] + if 'database' in instance.options: + tags[dbx.NAME] = instance.options['database'] + + pin = Pin( + service=config.vertica['service_name'], + app=APP, + tags=tags, + _config=config.vertica['patch']['vertica_python.vertica.cursor.Cursor'], + ) + pin.onto(cursor) + + +# tracing configuration +config._add( + 'vertica', + { + 'service_name': 'vertica', + 'app': 'vertica', + 'patch': { + 'vertica_python.vertica.connection.Connection': { + 'routines': { + 'cursor': { + 'trace_enabled': False, + 'span_end': cursor_span_end, + }, + }, + }, + 'vertica_python.vertica.cursor.Cursor': { + 'routines': { + 'execute': { + 'operation_name': 'vertica.query', + 'span_type': SpanTypes.SQL, + 'span_start': execute_span_start, + 'span_end': execute_span_end, + }, + 'copy': { + 'operation_name': 'vertica.copy', + 'span_type': SpanTypes.SQL, + 'span_start': copy_span_start, + }, + 'fetchone': { + 'operation_name': 'vertica.fetchone', + 'span_type': SpanTypes.SQL, + 'span_end': fetch_span_end, + }, + 'fetchall': { + 'operation_name': 'vertica.fetchall', + 'span_type': SpanTypes.SQL, + 'span_end': fetch_span_end, + }, + 'nextset': { + 'operation_name': 'vertica.nextset', + 'span_type': SpanTypes.SQL, + 'span_end': fetch_span_end, + }, + }, + }, + }, + }, +) + + +def patch(): + global _PATCHED + if _PATCHED: + return + + _install(config.vertica) + _PATCHED = True + + +def unpatch(): + global _PATCHED + if _PATCHED: + _uninstall(config.vertica) + _PATCHED = False + + +def _uninstall(config): + for patch_class_path in config['patch']: + patch_mod, _, patch_class = patch_class_path.rpartition('.') + mod = importlib.import_module(patch_mod) + cls = getattr(mod, patch_class, None) + + if not cls: + log.debug( + """ + Unable to find corresponding class for tracing configuration. + This version may not be supported. + """ + ) + continue + + for patch_routine in config['patch'][patch_class_path]['routines']: + unwrap(cls, patch_routine) + + +def _find_routine_config(config, instance, routine_name): + """Attempts to find the config for a routine based on the bases of the + class of the instance. + """ + bases = instance.__class__.__mro__ + for base in bases: + full_name = '{}.{}'.format(base.__module__, base.__name__) + if full_name not in config['patch']: + continue + + config_routines = config['patch'][full_name]['routines'] + + if routine_name in config_routines: + return config_routines[routine_name] + return {} + + +def _install_init(patch_item, patch_class, patch_mod, config): + patch_class_routine = '{}.{}'.format(patch_class, '__init__') + + # patch the __init__ of the class with a Pin instance containing the defaults + @wrapt.patch_function_wrapper(patch_mod, patch_class_routine) + def init_wrapper(wrapped, instance, args, kwargs): + r = wrapped(*args, **kwargs) + + # create and attach a pin with the defaults + Pin( + service=config['service_name'], + app=config['app'], + tags=config.get('tags', {}), + tracer=config.get('tracer', ddtrace.tracer), + _config=config['patch'][patch_item], + ).onto(instance) + return r + + +def _install_routine(patch_routine, patch_class, patch_mod, config): + patch_class_routine = '{}.{}'.format(patch_class, patch_routine) + + @wrapt.patch_function_wrapper(patch_mod, patch_class_routine) + def wrapper(wrapped, instance, args, kwargs): + # TODO?: remove Pin dependence + pin = Pin.get_from(instance) + + if patch_routine in pin._config['routines']: + conf = pin._config['routines'][patch_routine] + else: + conf = _find_routine_config(config, instance, patch_routine) + + enabled = conf.get('trace_enabled', True) + + span = None + + try: + # shortcut if not enabled + if not enabled: + result = wrapped(*args, **kwargs) + return result + + operation_name = conf['operation_name'] + tracer = pin.tracer + with tracer.trace(operation_name, service=pin.service, span_type=conf.get('span_type')) as span: + span.set_tags(pin.tags) + + if 'span_start' in conf: + conf['span_start'](instance, span, conf, *args, **kwargs) + + # set analytics sample rate + span.set_tag( + ANALYTICS_SAMPLE_RATE_KEY, + config.get_analytics_sample_rate() + ) + + result = wrapped(*args, **kwargs) + return result + except Exception as err: + if 'on_error' in conf: + conf['on_error'](instance, err, span, conf, *args, **kwargs) + raise + finally: + # if an exception is raised result will not exist + if 'result' not in locals(): + result = None + if 'span_end' in conf: + conf['span_end'](instance, result, span, conf, *args, **kwargs) + + +def _install(config): + for patch_class_path in config['patch']: + patch_mod, _, patch_class = patch_class_path.rpartition('.') + _install_init(patch_class_path, patch_class, patch_mod, config) + + for patch_routine in config['patch'][patch_class_path]['routines']: + _install_routine(patch_routine, patch_class, patch_mod, config) diff --git a/ddtrace/encoding.py b/ddtrace/encoding.py new file mode 100644 index 0000000000..f650966b55 --- /dev/null +++ b/ddtrace/encoding.py @@ -0,0 +1,128 @@ +import json +import struct + +from .internal.logger import get_logger + + +# Try to import msgpack, fallback to just JSON if something went wrong +# DEV: We are ok with the pure Python fallback for msgpack if the C-extension failed to install +try: + from ddtrace.vendor import msgpack + # DEV: `use_bin_type` only exists since `0.4.0`, but we vendor a more recent version + MSGPACK_PARAMS = {'use_bin_type': True} + MSGPACK_ENCODING = True +except ImportError: + # fallback to JSON + MSGPACK_PARAMS = {} + MSGPACK_ENCODING = False + +log = get_logger(__name__) + + +class Encoder(object): + """ + Encoder interface that provides the logic to encode traces and service. + """ + def __init__(self): + """ + When extending the ``Encoder`` class, ``headers`` must be set because + they're returned by the encoding methods, so that the API transport doesn't + need to know what is the right header to suggest the decoding format to the + agent + """ + self.content_type = '' + + def encode_traces(self, traces): + """ + Encodes a list of traces, expecting a list of items where each items + is a list of spans. Before dump the string in a serialized format all + traces are normalized, calling the ``to_dict()`` method. The traces + nesting is not changed. + + :param traces: A list of traces that should be serialized + """ + normalized_traces = [[span.to_dict() for span in trace] for trace in traces] + return self.encode(normalized_traces) + + def encode_trace(self, trace): + """ + Encodes a trace, expecting a list of spans. Before dump the string in a + serialized format all traces are normalized, calling the ``to_dict()`` method. + The traces nesting is not changed. + + :param trace: A list of traces that should be serialized + """ + return self.encode([span.to_dict() for span in trace]) + + def encode(self, obj): + """ + Defines the underlying format used during traces or services encoding. + This method must be implemented and should only be used by the internal functions. + """ + raise NotImplementedError + + def decode(self, data): + """ + Defines the underlying format used during traces or services encoding. + This method must be implemented and should only be used by the internal functions. + """ + raise NotImplementedError + + def join_encoded(self, objs): + """Helper used to join a list of encoded objects into an encoded list of objects""" + raise NotImplementedError + + +class JSONEncoder(Encoder): + def __init__(self): + # TODO[manu]: add instructions about how users can switch to Msgpack + log.debug('using JSON encoder; application performance may be degraded') + self.content_type = 'application/json' + + def encode(self, obj): + return json.dumps(obj) + + def decode(self, data): + return json.loads(data) + + def join_encoded(self, objs): + """Join a list of encoded objects together as a json array""" + return '[' + ','.join(objs) + ']' + + +class MsgpackEncoder(Encoder): + def __init__(self): + log.debug('using Msgpack encoder') + self.content_type = 'application/msgpack' + + def encode(self, obj): + return msgpack.packb(obj) + + def decode(self, data): + return msgpack.unpackb(data) + + def join_encoded(self, objs): + """Join a list of encoded objects together as a msgpack array""" + buf = b''.join(objs) + + # Prepend array header to buffer + # https://github.com/msgpack/msgpack-python/blob/f46523b1af7ff2d408da8500ea36a4f9f2abe915/msgpack/fallback.py#L948-L955 + count = len(objs) + if count <= 0xf: + return struct.pack('B', 0x90 + count) + buf + elif count <= 0xffff: + return struct.pack('>BH', 0xdc, count) + buf + else: + return struct.pack('>BI', 0xdd, count) + buf + + +def get_encoder(): + """ + Switching logic that choose the best encoder for the API transport. + The default behavior is to use Msgpack if we have a CPP implementation + installed, falling back to the Python built-in JSON encoder. + """ + if MSGPACK_ENCODING: + return MsgpackEncoder() + else: + return JSONEncoder() diff --git a/ddtrace/ext/__init__.py b/ddtrace/ext/__init__.py new file mode 100644 index 0000000000..d05d30392a --- /dev/null +++ b/ddtrace/ext/__init__.py @@ -0,0 +1,37 @@ +from enum import Enum + +from ..vendor.debtcollector import removals +from ..utils import removed_classproperty + + +class SpanTypes(Enum): + CACHE = "cache" + CASSANDRA = "cassandra" + ELASTICSEARCH = "elasticsearch" + GRPC = "grpc" + HTTP = "http" + MONGODB = "mongodb" + REDIS = "redis" + SQL = "sql" + TEMPLATE = "template" + WEB = "web" + WORKER = "worker" + + +@removals.removed_class("AppTypes") +class AppTypes(object): + @removed_classproperty + def web(cls): + return SpanTypes.WEB + + @removed_classproperty + def db(cls): + return "db" + + @removed_classproperty + def cache(cls): + return SpanTypes.CACHE + + @removed_classproperty + def worker(cls): + return SpanTypes.WORKER diff --git a/ddtrace/ext/aws.py b/ddtrace/ext/aws.py new file mode 100644 index 0000000000..931b92bd00 --- /dev/null +++ b/ddtrace/ext/aws.py @@ -0,0 +1,39 @@ +from ..utils.formats import flatten_dict + + +BLACKLIST_ENDPOINT = ['kms', 'sts'] +BLACKLIST_ENDPOINT_TAGS = { + 's3': ['params.Body'], +} + + +def truncate_arg_value(value, max_len=1024): + """Truncate values which are bytes and greater than `max_len`. + Useful for parameters like 'Body' in `put_object` operations. + """ + if isinstance(value, bytes) and len(value) > max_len: + return b'...' + + return value + + +def add_span_arg_tags(span, endpoint_name, args, args_names, args_traced): + if endpoint_name not in BLACKLIST_ENDPOINT: + blacklisted = BLACKLIST_ENDPOINT_TAGS.get(endpoint_name, []) + tags = dict( + (name, value) + for (name, value) in zip(args_names, args) + if name in args_traced + ) + tags = flatten_dict(tags) + tags = { + k: truncate_arg_value(v) + for k, v in tags.items() + if k not in blacklisted + } + span.set_tags(tags) + + +REGION = 'aws.region' +AGENT = 'aws.agent' +OPERATION = 'aws.operation' diff --git a/ddtrace/ext/cassandra.py b/ddtrace/ext/cassandra.py new file mode 100644 index 0000000000..6b2629a317 --- /dev/null +++ b/ddtrace/ext/cassandra.py @@ -0,0 +1,13 @@ +from . import SpanTypes + +# [TODO] Deprecated, remove when we remove AppTypes +# the type of the spans +TYPE = SpanTypes.CASSANDRA + +# tags +CLUSTER = 'cassandra.cluster' +KEYSPACE = 'cassandra.keyspace' +CONSISTENCY_LEVEL = 'cassandra.consistency_level' +PAGINATED = 'cassandra.paginated' +ROW_COUNT = 'cassandra.row_count' +PAGE_NUMBER = 'cassandra.page_number' diff --git a/ddtrace/ext/consul.py b/ddtrace/ext/consul.py new file mode 100644 index 0000000000..d1e6f1afaa --- /dev/null +++ b/ddtrace/ext/consul.py @@ -0,0 +1,10 @@ +from . import SpanTypes + +APP = 'consul' +# [TODO] Deprecated, remove when we remove AppTypes +APP_TYPE = SpanTypes.CACHE +SERVICE = 'consul' + +CMD = 'consul.command' + +KEY = 'consul.key' diff --git a/ddtrace/ext/db.py b/ddtrace/ext/db.py new file mode 100644 index 0000000000..34b42c69e3 --- /dev/null +++ b/ddtrace/ext/db.py @@ -0,0 +1,4 @@ +# tags +NAME = 'db.name' # the database name (eg: dbname for pgsql) +USER = 'db.user' # the user connecting to the db +ROWCOUNT = 'db.rowcount' # the rowcount of a query diff --git a/ddtrace/ext/elasticsearch.py b/ddtrace/ext/elasticsearch.py new file mode 100644 index 0000000000..44d1089176 --- /dev/null +++ b/ddtrace/ext/elasticsearch.py @@ -0,0 +1,13 @@ +from . import SpanTypes + +# [TODO] Deprecated, remove when we remove AppTypes +TYPE = SpanTypes.ELASTICSEARCH +SERVICE = 'elasticsearch' +APP = 'elasticsearch' + +# standard tags +URL = 'elasticsearch.url' +METHOD = 'elasticsearch.method' +TOOK = 'elasticsearch.took' +PARAMS = 'elasticsearch.params' +BODY = 'elasticsearch.body' diff --git a/ddtrace/ext/errors.py b/ddtrace/ext/errors.py new file mode 100644 index 0000000000..70fee86076 --- /dev/null +++ b/ddtrace/ext/errors.py @@ -0,0 +1,23 @@ +""" +tags for common error attributes +""" + +import traceback + + +ERROR_MSG = 'error.msg' # a string representing the error message +ERROR_TYPE = 'error.type' # a string representing the type of the error +ERROR_STACK = 'error.stack' # a human readable version of the stack. beta. + +# shorthand for -----^ +MSG = ERROR_MSG +TYPE = ERROR_TYPE +STACK = ERROR_STACK + + +def get_traceback(tb=None, error=None): + t = None + if error: + t = type(error) + lines = traceback.format_exception(t, error, tb, limit=20) + return '\n'.join(lines) diff --git a/ddtrace/ext/http.py b/ddtrace/ext/http.py new file mode 100644 index 0000000000..3df762247d --- /dev/null +++ b/ddtrace/ext/http.py @@ -0,0 +1,26 @@ +""" +Standard http tags. + +For example: + +span.set_tag(URL, '/user/home') +span.set_tag(STATUS_CODE, 404) +""" +from . import SpanTypes + +# [TODO] Deprecated, remove when we remove AppTypes +# type of the spans +TYPE = SpanTypes.HTTP + +# tags +URL = 'http.url' +METHOD = 'http.method' +STATUS_CODE = 'http.status_code' +QUERY_STRING = 'http.query.string' + +# template render span type +TEMPLATE = 'template' + + +def normalize_status_code(code): + return code.split(' ')[0] diff --git a/ddtrace/ext/kombu.py b/ddtrace/ext/kombu.py new file mode 100644 index 0000000000..9eaafeb2e5 --- /dev/null +++ b/ddtrace/ext/kombu.py @@ -0,0 +1,18 @@ +from . import SpanTypes + +# [TODO] Deprecated, remove when we remove AppTypes +# type of the spans +TYPE = SpanTypes.WORKER + +SERVICE = 'kombu' + +# net extension +VHOST = 'out.vhost' + +# standard tags +EXCHANGE = 'kombu.exchange' +BODY_LEN = 'kombu.body_length' +ROUTING_KEY = 'kombu.routing_key' + +PUBLISH_NAME = 'kombu.publish' +RECEIVE_NAME = 'kombu.receive' diff --git a/ddtrace/ext/memcached.py b/ddtrace/ext/memcached.py new file mode 100644 index 0000000000..7e71e98614 --- /dev/null +++ b/ddtrace/ext/memcached.py @@ -0,0 +1,8 @@ +from . import SpanTypes + +# [TODO] Deprecated, remove when we remove AppTypes +TYPE = SpanTypes.CACHE + +CMD = 'memcached.command' +SERVICE = 'memcached' +QUERY = 'memcached.query' diff --git a/ddtrace/ext/mongo.py b/ddtrace/ext/mongo.py new file mode 100644 index 0000000000..884764e454 --- /dev/null +++ b/ddtrace/ext/mongo.py @@ -0,0 +1,10 @@ +from . import SpanTypes + +# [TODO] Deprecated, remove when we remove AppTypes +TYPE = SpanTypes.MONGODB + +SERVICE = 'mongodb' +COLLECTION = 'mongodb.collection' +DB = 'mongodb.db' +ROWS = 'mongodb.rows' +QUERY = 'mongodb.query' diff --git a/ddtrace/ext/net.py b/ddtrace/ext/net.py new file mode 100644 index 0000000000..7133a00e9a --- /dev/null +++ b/ddtrace/ext/net.py @@ -0,0 +1,9 @@ +""" +Standard network tags. +""" + +# request targets +TARGET_HOST = 'out.host' +TARGET_PORT = 'out.port' + +BYTES_OUT = 'net.out.bytes' diff --git a/ddtrace/ext/priority.py b/ddtrace/ext/priority.py new file mode 100644 index 0000000000..d7cd27b928 --- /dev/null +++ b/ddtrace/ext/priority.py @@ -0,0 +1,24 @@ +""" +Priority is a hint given to the backend so that it knows which traces to reject or kept. +In a distributed context, it should be set before any context propagation (fork, RPC calls) to be effective. + +For example: + +from ddtrace.ext.priority import USER_REJECT, USER_KEEP + +context = tracer.context_provider.active() +# Indicate to not keep the trace +context.sampling_priority = USER_REJECT + +# Indicate to keep the trace +span.context.sampling_priority = USER_KEEP +""" + +# Use this to explicitly inform the backend that a trace should be rejected and not stored. +USER_REJECT = -1 +# Used by the builtin sampler to inform the backend that a trace should be rejected and not stored. +AUTO_REJECT = 0 +# Used by the builtin sampler to inform the backend that a trace should be kept and stored. +AUTO_KEEP = 1 +# Use this to explicitly inform the backend that a trace should be kept and stored. +USER_KEEP = 2 diff --git a/ddtrace/ext/redis.py b/ddtrace/ext/redis.py new file mode 100644 index 0000000000..542175ea66 --- /dev/null +++ b/ddtrace/ext/redis.py @@ -0,0 +1,19 @@ +from . import SpanTypes + +# defaults +APP = 'redis' +DEFAULT_SERVICE = 'redis' + +# [TODO] Deprecated, remove when we remove AppTypes +# type of the spans +TYPE = SpanTypes.REDIS + +# net extension +DB = 'out.redis_db' + +# standard tags +RAWCMD = 'redis.raw_command' +CMD = 'redis.command' +ARGS_LEN = 'redis.args_length' +PIPELINE_LEN = 'redis.pipeline_length' +PIPELINE_AGE = 'redis.pipeline_age' diff --git a/ddtrace/ext/sql.py b/ddtrace/ext/sql.py new file mode 100644 index 0000000000..1d8c1a3a90 --- /dev/null +++ b/ddtrace/ext/sql.py @@ -0,0 +1,34 @@ +from . import SpanTypes + +# [TODO] Deprecated, remove when we remove AppTypes +TYPE = SpanTypes.SQL +APP_TYPE = SpanTypes.SQL + +# tags +QUERY = 'sql.query' # the query text +ROWS = 'sql.rows' # number of rows returned by a query +DB = 'sql.db' # the name of the database + + +def normalize_vendor(vendor): + """ Return a canonical name for a type of database. """ + if not vendor: + return 'db' # should this ever happen? + elif 'sqlite' in vendor: + return 'sqlite' + elif 'postgres' in vendor or vendor == 'psycopg2': + return 'postgres' + else: + return vendor + + +def parse_pg_dsn(dsn): + """ + Return a dictionary of the components of a postgres DSN. + + >>> parse_pg_dsn('user=dog port=1543 dbname=dogdata') + {'user':'dog', 'port':'1543', 'dbname':'dogdata'} + """ + # FIXME: replace by psycopg2.extensions.parse_dsn when available + # https://github.com/psycopg/psycopg2/pull/321 + return {c.split('=')[0]: c.split('=')[1] for c in dsn.split() if '=' in c} diff --git a/ddtrace/ext/system.py b/ddtrace/ext/system.py new file mode 100644 index 0000000000..098976d095 --- /dev/null +++ b/ddtrace/ext/system.py @@ -0,0 +1,5 @@ +""" +Standard system tags +""" + +PID = 'system.pid' diff --git a/ddtrace/filters.py b/ddtrace/filters.py new file mode 100644 index 0000000000..37f3ea02cb --- /dev/null +++ b/ddtrace/filters.py @@ -0,0 +1,49 @@ +import re + +from .ext import http + + +class FilterRequestsOnUrl(object): + r"""Filter out traces from incoming http requests based on the request's url. + + This class takes as argument a list of regular expression patterns + representing the urls to be excluded from tracing. A trace will be excluded + if its root span contains a ``http.url`` tag and if this tag matches any of + the provided regular expression using the standard python regexp match + semantic (https://docs.python.org/2/library/re.html#re.match). + + :param list regexps: a list of regular expressions (or a single string) defining + the urls that should be filtered out. + + Examples: + To filter out http calls to domain api.example.com:: + + FilterRequestsOnUrl(r'http://api\\.example\\.com') + + To filter out http calls to all first level subdomains from example.com:: + + FilterRequestOnUrl(r'http://.*+\\.example\\.com') + + To filter out calls to both http://test.example.com and http://example.com/healthcheck:: + + FilterRequestOnUrl([r'http://test\\.example\\.com', r'http://example\\.com/healthcheck']) + """ + def __init__(self, regexps): + if isinstance(regexps, str): + regexps = [regexps] + self._regexps = [re.compile(regexp) for regexp in regexps] + + def process_trace(self, trace): + """ + When the filter is registered in the tracer, process_trace is called by + on each trace before it is sent to the agent, the returned value will + be fed to the next filter in the list. If process_trace returns None, + the whole trace is discarded. + """ + for span in trace: + if span.parent_id is None and span.get_tag(http.URL) is not None: + url = span.get_tag(http.URL) + for regexp in self._regexps: + if regexp.match(url): + return None + return trace diff --git a/ddtrace/helpers.py b/ddtrace/helpers.py new file mode 100644 index 0000000000..3374b415f5 --- /dev/null +++ b/ddtrace/helpers.py @@ -0,0 +1,37 @@ +import ddtrace + + +def get_correlation_ids(tracer=None): + """Retrieves the Correlation Identifiers for the current active ``Trace``. + This helper method can be achieved manually and should be considered + only a shortcut. The main reason is to abstract the current ``Tracer`` + implementation so that these identifiers can be extracted either the + tracer is an OpenTracing tracer or a Datadog tracer. + + OpenTracing users can still extract these values using the ``ScopeManager`` + API, though this shortcut is a simple one-liner. The usage is: + + from ddtrace import helpers + + trace_id, span_id = helpers.get_correlation_ids() + + :returns: a tuple containing the trace_id and span_id + """ + # Consideration: currently we don't have another way to "define" a + # GlobalTracer. In the case of OpenTracing, ``opentracing.tracer`` is exposed + # and we're doing the same here for ``ddtrace.tracer``. Because this helper + # must work also with OpenTracing, we should take the right used ``Tracer``. + # At the time of writing, it's enough to support our Datadog Tracer. + + # If no tracer passed in, use global tracer + if not tracer: + tracer = ddtrace.tracer + + # If tracer is disabled, skip + if not tracer.enabled: + return None, None + + span = tracer.current_span() + if not span: + return None, None + return span.trace_id, span.span_id diff --git a/ddtrace/http/__init__.py b/ddtrace/http/__init__.py new file mode 100644 index 0000000000..0ec8d6ff08 --- /dev/null +++ b/ddtrace/http/__init__.py @@ -0,0 +1,6 @@ +from .headers import store_request_headers, store_response_headers + +__all__ = [ + 'store_request_headers', + 'store_response_headers', +] diff --git a/ddtrace/http/headers.py b/ddtrace/http/headers.py new file mode 100644 index 0000000000..b680a5c45a --- /dev/null +++ b/ddtrace/http/headers.py @@ -0,0 +1,90 @@ +import re + +from ..internal.logger import get_logger +from ..utils.http import normalize_header_name + +log = get_logger(__name__) + +REQUEST = 'request' +RESPONSE = 'response' + +# Tag normalization based on: https://docs.datadoghq.com/tagging/#defining-tags +# With the exception of '.' in header names which are replaced with '_' to avoid +# starting a "new object" on the UI. +NORMALIZE_PATTERN = re.compile(r'([^a-z0-9_\-:/]){1}') + + +def store_request_headers(headers, span, integration_config): + """ + Store request headers as a span's tags + :param headers: All the request's http headers, will be filtered through the whitelist + :type headers: dict or list + :param span: The Span instance where tags will be stored + :type span: ddtrace.Span + :param integration_config: An integration specific config object. + :type integration_config: ddtrace.settings.IntegrationConfig + """ + _store_headers(headers, span, integration_config, REQUEST) + + +def store_response_headers(headers, span, integration_config): + """ + Store response headers as a span's tags + :param headers: All the response's http headers, will be filtered through the whitelist + :type headers: dict or list + :param span: The Span instance where tags will be stored + :type span: ddtrace.Span + :param integration_config: An integration specific config object. + :type integration_config: ddtrace.settings.IntegrationConfig + """ + _store_headers(headers, span, integration_config, RESPONSE) + + +def _store_headers(headers, span, integration_config, request_or_response): + """ + :param headers: A dict of http headers to be stored in the span + :type headers: dict or list + :param span: The Span instance where tags will be stored + :type span: ddtrace.span.Span + :param integration_config: An integration specific config object. + :type integration_config: ddtrace.settings.IntegrationConfig + """ + if not isinstance(headers, dict): + try: + headers = dict(headers) + except Exception: + return + + if integration_config is None: + log.debug('Skipping headers tracing as no integration config was provided') + return + + for header_name, header_value in headers.items(): + if not integration_config.header_is_traced(header_name): + continue + tag_name = _normalize_tag_name(request_or_response, header_name) + span.set_tag(tag_name, header_value) + + +def _normalize_tag_name(request_or_response, header_name): + """ + Given a tag name, e.g. 'Content-Type', returns a corresponding normalized tag name, i.e + 'http.request.headers.content_type'. Rules applied actual header name are: + - any letter is converted to lowercase + - any digit is left unchanged + - any block of any length of different ASCII chars is converted to a single underscore '_' + :param request_or_response: The context of the headers: request|response + :param header_name: The header's name + :type header_name: str + :rtype: str + """ + # Looking at: + # - http://www.iana.org/assignments/message-headers/message-headers.xhtml + # - https://tools.ietf.org/html/rfc6648 + # and for consistency with other language integrations seems safe to assume the following algorithm for header + # names normalization: + # - any letter is converted to lowercase + # - any digit is left unchanged + # - any block of any length of different ASCII chars is converted to a single underscore '_' + normalized_name = NORMALIZE_PATTERN.sub('_', normalize_header_name(header_name)) + return 'http.{}.headers.{}'.format(request_or_response, normalized_name) diff --git a/ddtrace/internal/README.md b/ddtrace/internal/README.md new file mode 100644 index 0000000000..5cb38087f8 --- /dev/null +++ b/ddtrace/internal/README.md @@ -0,0 +1,7 @@ +# Internal +This internal module is used to define and document an internal only API for `ddtrace`. + +These modules are not intended to be used outside of `ddtrace`. + +The APIs found within `ddtrace.internal` are subject to breaking changes at any time +and do not follow the semver versioning scheme of the `ddtrace` package. diff --git a/ddtrace/internal/__init__.py b/ddtrace/internal/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/ddtrace/internal/context_manager.py b/ddtrace/internal/context_manager.py new file mode 100644 index 0000000000..b884ed567c --- /dev/null +++ b/ddtrace/internal/context_manager.py @@ -0,0 +1,107 @@ +import abc +import threading +from ddtrace.vendor import six + +from .logger import get_logger +from ..context import Context + +log = get_logger(__name__) + +try: + from contextvars import ContextVar + + _DD_CONTEXTVAR = ContextVar("datadog_contextvar", default=None) + CONTEXTVARS_IS_AVAILABLE = True +except ImportError: + CONTEXTVARS_IS_AVAILABLE = False + + +class BaseContextManager(six.with_metaclass(abc.ABCMeta)): + def __init__(self, reset=True): + if reset: + self.reset() + + @abc.abstractmethod + def _has_active_context(self): + pass + + @abc.abstractmethod + def set(self, ctx): + pass + + @abc.abstractmethod + def get(self): + pass + + def reset(self): + pass + + +class ThreadLocalContext(BaseContextManager): + """ + ThreadLocalContext can be used as a tracer global reference to create + a different ``Context`` for each thread. In synchronous tracer, this + is required to prevent multiple threads sharing the same ``Context`` + in different executions. + """ + + def __init__(self, reset=True): + # always initialize a new thread-local context holder + super(ThreadLocalContext, self).__init__(reset=True) + + def _has_active_context(self): + """ + Determine whether we have a currently active context for this thread + + :returns: Whether an active context exists + :rtype: bool + """ + ctx = getattr(self._locals, "context", None) + return ctx is not None + + def set(self, ctx): + setattr(self._locals, "context", ctx) + + def get(self): + ctx = getattr(self._locals, "context", None) + if not ctx: + # create a new Context if it's not available + ctx = Context() + self._locals.context = ctx + + return ctx + + def reset(self): + self._locals = threading.local() + + +class ContextVarContextManager(BaseContextManager): + """ + _ContextVarContext can be used in place of the ThreadLocalContext for Python + 3.7 and above to manage different ``Context`` objects for each thread and + async task. + """ + + def _has_active_context(self): + ctx = _DD_CONTEXTVAR.get() + return ctx is not None + + def set(self, ctx): + _DD_CONTEXTVAR.set(ctx) + + def get(self): + ctx = _DD_CONTEXTVAR.get() + if not ctx: + ctx = Context() + self.set(ctx) + + return ctx + + def reset(self): + _DD_CONTEXTVAR.set(None) + + +if CONTEXTVARS_IS_AVAILABLE: + DefaultContextManager = ContextVarContextManager +else: + DefaultContextManager = ThreadLocalContext diff --git a/ddtrace/internal/hostname.py b/ddtrace/internal/hostname.py new file mode 100644 index 0000000000..5e3c941f0b --- /dev/null +++ b/ddtrace/internal/hostname.py @@ -0,0 +1,21 @@ +import functools +import socket + +_hostname = None + + +def _cached(func): + @functools.wraps(func) + def wrapper(): + global _hostname + if not _hostname: + _hostname = func() + + return _hostname + + return wrapper + + +@_cached +def get_hostname(): + return socket.gethostname() diff --git a/ddtrace/internal/logger.py b/ddtrace/internal/logger.py new file mode 100644 index 0000000000..04f8ef83f1 --- /dev/null +++ b/ddtrace/internal/logger.py @@ -0,0 +1,125 @@ +import collections +import logging + +from ..utils.formats import get_env + + +def get_logger(name): + """ + Retrieve or create a ``DDLogger`` instance. + + This function mirrors the behavior of `logging.getLogger`. + + If no logger with the provided name has been fetched before then + a new one is created. + + If a previous logger has been created then it is returned. + + DEV: We do not want to mess with `logging.setLoggerClass()` + That will totally mess with the user's loggers, we want + just our own, selective loggers to be DDLoggers + + :param name: The name of the logger to fetch or create + :type name: str + :return: The logger instance + :rtype: ``DDLogger`` + """ + # DEV: `logging.Logger.manager` refers to the single root `logging.Manager` instance + # https://github.com/python/cpython/blob/48769a28ad6ef4183508951fa6a378531ace26a4/Lib/logging/__init__.py#L1824-L1826 # noqa + manager = logging.Logger.manager + + # If the logger does not exist yet, create it + # DEV: `Manager.loggerDict` is a dict mapping logger name to logger + # DEV: This is a simplified version of `logging.Manager.getLogger` + # https://github.com/python/cpython/blob/48769a28ad6ef4183508951fa6a378531ace26a4/Lib/logging/__init__.py#L1221-L1253 # noqa + if name not in manager.loggerDict: + manager.loggerDict[name] = DDLogger(name=name) + + # Get our logger + logger = manager.loggerDict[name] + + # If this log manager has a `_fixupParents` method then call it on our logger + # DEV: This helper is used to ensure our logger has an appropriate `Logger.parent` set, + # without this then we cannot take advantage of the root loggers handlers + # https://github.com/python/cpython/blob/7c7839329c2c66d051960ab1df096aed1cc9343e/Lib/logging/__init__.py#L1272-L1294 # noqa + # DEV: `_fixupParents` has been around for awhile, but add the `hasattr` guard... just in case. + if hasattr(manager, "_fixupParents"): + manager._fixupParents(logger) + + # Return out logger + return logger + + +class DDLogger(logging.Logger): + """ + Custom rate limited logger used by ``ddtrace`` + + This logger class is used to rate limit the output of + log messages from within the ``ddtrace`` package. + """ + + __slots__ = ("buckets", "rate_limit") + + # Named tuple used for keeping track of a log lines current time bucket and the number of log lines skipped + LoggingBucket = collections.namedtuple("LoggingBucket", ("bucket", "skipped")) + + def __init__(self, *args, **kwargs): + """Constructor for ``DDLogger``""" + super(DDLogger, self).__init__(*args, **kwargs) + + # Dict to keep track of the current time bucket per name/level/pathname/lineno + self.buckets = collections.defaultdict(lambda: DDLogger.LoggingBucket(0, 0)) + + # Allow 1 log record per name/level/pathname/lineno every 60 seconds by default + # Allow configuring via `DD_LOGGING_RATE_LIMIT` + # DEV: `DD_LOGGING_RATE_LIMIT=0` means to disable all rate limiting + self.rate_limit = int(get_env("logging", "rate_limit", default=60)) + + def handle(self, record): + """ + Function used to call the handlers for a log line. + + This implementation will first determine if this log line should + be logged or rate limited, and then call the base ``logging.Logger.handle`` + function if it should be logged + + DEV: This method has all of it's code inlined to reduce on functions calls + + :param record: The log record being logged + :type record: ``logging.LogRecord`` + """ + # If rate limiting has been disabled (`DD_LOGGING_RATE_LIMIT=0`) then apply no rate limit + if not self.rate_limit: + super(DDLogger, self).handle(record) + return + + # Allow 1 log record by name/level/pathname/lineno every X seconds + # DEV: current unix time / rate (e.g. 300 seconds) = time bucket + # int(1546615098.8404942 / 300) = 515538 + # DEV: LogRecord `created` is a unix timestamp/float + # DEV: LogRecord has `levelname` and `levelno`, we want `levelno` e.g. `logging.DEBUG = 10` + current_bucket = int(record.created / self.rate_limit) + + # Limit based on logger name, record level, filename, and line number + # ('ddtrace.writer', 'DEBUG', '../site-packages/ddtrace/writer.py', 137) + # This way each unique log message can get logged at least once per time period + # DEV: LogRecord has `levelname` and `levelno`, we want `levelno` e.g. `logging.DEBUG = 10` + key = (record.name, record.levelno, record.pathname, record.lineno) + + # Only log this message if the time bucket has changed from the previous time we ran + logging_bucket = self.buckets[key] + if logging_bucket.bucket != current_bucket: + # Append count of skipped messages if we have skipped some since our last logging + if logging_bucket.skipped: + record.msg = "{}, %s additional messages skipped".format(record.msg) + record.args = record.args + (logging_bucket.skipped,) + + # Reset our bucket + self.buckets[key] = DDLogger.LoggingBucket(current_bucket, 0) + + # Call the base handle to actually log this record + super(DDLogger, self).handle(record) + else: + # Increment the count of records we have skipped + # DEV: `self.buckets[key]` is a tuple which is immutable so recreate instead + self.buckets[key] = DDLogger.LoggingBucket(logging_bucket.bucket, logging_bucket.skipped + 1) diff --git a/ddtrace/internal/rate_limiter.py b/ddtrace/internal/rate_limiter.py new file mode 100644 index 0000000000..8c8ac68eab --- /dev/null +++ b/ddtrace/internal/rate_limiter.py @@ -0,0 +1,142 @@ +from __future__ import division +import threading + +from ..vendor import monotonic + + +class RateLimiter(object): + """ + A token bucket rate limiter implementation + """ + + __slots__ = ( + "_lock", + "current_window", + "last_update", + "max_tokens", + "prev_window_rate", + "rate_limit", + "tokens", + "tokens_allowed", + "tokens_total", + ) + + def __init__(self, rate_limit): + """ + Constructor for RateLimiter + + :param rate_limit: The rate limit to apply for number of requests per second. + rate limit > 0 max number of requests to allow per second, + rate limit == 0 to disallow all requests, + rate limit < 0 to allow all requests + :type rate_limit: :obj:`int` + """ + self.rate_limit = rate_limit + self.tokens = rate_limit + self.max_tokens = rate_limit + + self.last_update = monotonic.monotonic() + + self.current_window = 0 + self.tokens_allowed = 0 + self.tokens_total = 0 + self.prev_window_rate = None + + self._lock = threading.Lock() + + def is_allowed(self): + """ + Check whether the current request is allowed or not + + This method will also reduce the number of available tokens by 1 + + :returns: Whether the current request is allowed or not + :rtype: :obj:`bool` + """ + # Determine if it is allowed + allowed = self._is_allowed() + # Update counts used to determine effective rate + self._update_rate_counts(allowed) + return allowed + + def _update_rate_counts(self, allowed): + now = monotonic.monotonic() + + # No tokens have been seen yet, start a new window + if not self.current_window: + self.current_window = now + + # If more than 1 second has past since last window, reset + elif now - self.current_window >= 1.0: + # Store previous window's rate to average with current for `.effective_rate` + self.prev_window_rate = self._current_window_rate() + self.tokens_allowed = 0 + self.tokens_total = 0 + self.current_window = now + + # Keep track of total tokens seen vs allowed + if allowed: + self.tokens_allowed += 1 + self.tokens_total += 1 + + def _is_allowed(self): + # Rate limit of 0 blocks everything + if self.rate_limit == 0: + return False + + # Negative rate limit disables rate limiting + elif self.rate_limit < 0: + return True + + # Lock, we need this to be thread safe, it should be shared by all threads + with self._lock: + self._replenish() + + if self.tokens >= 1: + self.tokens -= 1 + return True + + return False + + def _replenish(self): + # If we are at the max, we do not need to add any more + if self.tokens == self.max_tokens: + return + + # Add more available tokens based on how much time has passed + now = monotonic.monotonic() + elapsed = now - self.last_update + self.last_update = now + + # Update the number of available tokens, but ensure we do not exceed the max + self.tokens = min(self.max_tokens, self.tokens + (elapsed * self.rate_limit),) + + def _current_window_rate(self): + # No tokens have been seen, effectively 100% sample rate + # DEV: This is to avoid division by zero error + if not self.tokens_total: + return 1.0 + + # Get rate of tokens allowed + return self.tokens_allowed / self.tokens_total + + @property + def effective_rate(self): + """ + Return the effective sample rate of this rate limiter + + :returns: Effective sample rate value 0.0 <= rate <= 1.0 + :rtype: :obj:`float`` + """ + # If we have not had a previous window yet, return current rate + if self.prev_window_rate is None: + return self._current_window_rate() + + return (self._current_window_rate() + self.prev_window_rate) / 2.0 + + def __repr__(self): + return "{}(rate_limit={!r}, tokens={!r}, last_update={!r}, effective_rate={!r})".format( + self.__class__.__name__, self.rate_limit, self.tokens, self.last_update, self.effective_rate, + ) + + __str__ = __repr__ diff --git a/ddtrace/internal/runtime/__init__.py b/ddtrace/internal/runtime/__init__.py new file mode 100644 index 0000000000..30ba177f21 --- /dev/null +++ b/ddtrace/internal/runtime/__init__.py @@ -0,0 +1,12 @@ +from .runtime_metrics import ( + RuntimeTags, + RuntimeMetrics, + RuntimeWorker, +) + + +__all__ = [ + "RuntimeTags", + "RuntimeMetrics", + "RuntimeWorker", +] diff --git a/ddtrace/internal/runtime/collector.py b/ddtrace/internal/runtime/collector.py new file mode 100644 index 0000000000..c8b8ac0bf8 --- /dev/null +++ b/ddtrace/internal/runtime/collector.py @@ -0,0 +1,79 @@ +import importlib + +from ..logger import get_logger + +log = get_logger(__name__) + + +class ValueCollector(object): + """A basic state machine useful for collecting, caching and updating data + obtained from different Python modules. + + The two primary use-cases are + 1) data loaded once (like tagging information) + 2) periodically updating data sources (like thread count) + + Functionality is provided for requiring and importing modules which may or + may not be installed. + """ + + enabled = True + periodic = False + required_modules = [] + value = None + value_loaded = False + + def __init__(self, enabled=None, periodic=None, required_modules=None): + self.enabled = self.enabled if enabled is None else enabled + self.periodic = self.periodic if periodic is None else periodic + self.required_modules = self.required_modules if required_modules is None else required_modules + + self._modules_successfully_loaded = False + self.modules = self._load_modules() + if self._modules_successfully_loaded: + self._on_modules_load() + + def _on_modules_load(self): + """Hook triggered after all required_modules have been successfully loaded. + """ + + def _load_modules(self): + modules = {} + try: + for module in self.required_modules: + modules[module] = importlib.import_module(module) + self._modules_successfully_loaded = True + except ImportError: + # DEV: disable collector if we cannot load any of the required modules + self.enabled = False + log.warning('Could not import module "%s" for %s. Disabling collector.', module, self) + return None + return modules + + def collect(self, keys=None): + """Returns metrics as collected by `collect_fn`. + + :param keys: The keys of the metrics to collect. + """ + if not self.enabled: + return self.value + + keys = keys or set() + + if not self.periodic and self.value_loaded: + return self.value + + # call underlying collect function and filter out keys not requested + self.value = self.collect_fn(keys) + + # filter values for keys + if len(keys) > 0 and isinstance(self.value, list): + self.value = [(k, v) for (k, v) in self.value if k in keys] + + self.value_loaded = True + return self.value + + def __repr__(self): + return "<{}(enabled={},periodic={},required_modules={})>".format( + self.__class__.__name__, self.enabled, self.periodic, self.required_modules, + ) diff --git a/ddtrace/internal/runtime/constants.py b/ddtrace/internal/runtime/constants.py new file mode 100644 index 0000000000..d1a627a9c2 --- /dev/null +++ b/ddtrace/internal/runtime/constants.py @@ -0,0 +1,32 @@ +GC_COUNT_GEN0 = "runtime.python.gc.count.gen0" +GC_COUNT_GEN1 = "runtime.python.gc.count.gen1" +GC_COUNT_GEN2 = "runtime.python.gc.count.gen2" + +THREAD_COUNT = "runtime.python.thread_count" +MEM_RSS = "runtime.python.mem.rss" +CPU_TIME_SYS = "runtime.python.cpu.time.sys" +CPU_TIME_USER = "runtime.python.cpu.time.user" +CPU_PERCENT = "runtime.python.cpu.percent" +CTX_SWITCH_VOLUNTARY = "runtime.python.cpu.ctx_switch.voluntary" +CTX_SWITCH_INVOLUNTARY = "runtime.python.cpu.ctx_switch.involuntary" + +GC_RUNTIME_METRICS = set([GC_COUNT_GEN0, GC_COUNT_GEN1, GC_COUNT_GEN2]) + +PSUTIL_RUNTIME_METRICS = set( + [THREAD_COUNT, MEM_RSS, CTX_SWITCH_VOLUNTARY, CTX_SWITCH_INVOLUNTARY, CPU_TIME_SYS, CPU_TIME_USER, CPU_PERCENT] +) + +DEFAULT_RUNTIME_METRICS = GC_RUNTIME_METRICS | PSUTIL_RUNTIME_METRICS + +SERVICE = "service" +ENV = "env" +LANG_INTERPRETER = "lang_interpreter" +LANG_VERSION = "lang_version" +LANG = "lang" +TRACER_VERSION = "tracer_version" + +TRACER_TAGS = set([SERVICE, ENV]) + +PLATFORM_TAGS = set([LANG_INTERPRETER, LANG_VERSION, LANG, TRACER_VERSION]) + +DEFAULT_RUNTIME_TAGS = TRACER_TAGS | PLATFORM_TAGS diff --git a/ddtrace/internal/runtime/container.py b/ddtrace/internal/runtime/container.py new file mode 100644 index 0000000000..e13c07eeee --- /dev/null +++ b/ddtrace/internal/runtime/container.py @@ -0,0 +1,105 @@ +import re + +from ..logger import get_logger + +log = get_logger(__name__) + + +class CGroupInfo(object): + """ + CGroup class for container information parsed from a group cgroup file + """ + + __slots__ = ("id", "groups", "path", "container_id", "controllers", "pod_id") + + UUID_SOURCE_PATTERN = r"[0-9a-f]{8}[-_][0-9a-f]{4}[-_][0-9a-f]{4}[-_][0-9a-f]{4}[-_][0-9a-f]{12}" + CONTAINER_SOURCE_PATTERN = r"[0-9a-f]{64}" + + LINE_RE = re.compile(r"^(\d+):([^:]*):(.+)$") + POD_RE = re.compile(r"pod({0})(?:\.slice)?$".format(UUID_SOURCE_PATTERN)) + CONTAINER_RE = re.compile(r"({0}|{1})(?:\.scope)?$".format(UUID_SOURCE_PATTERN, CONTAINER_SOURCE_PATTERN)) + + def __init__(self, **kwargs): + # Initialize all attributes in __slots__ to `None` + # DEV: Otherwise we'll get `AttributeError` when trying to access if they are unset + for attr in self.__slots__: + setattr(self, attr, kwargs.get(attr)) + + @classmethod + def from_line(cls, line): + """ + Parse a new :class:`CGroupInfo` from the provided line + + :param line: A line from a cgroup file (e.g. /proc/self/cgroup) to parse information from + :type line: str + :returns: A :class:`CGroupInfo` object with all parsed data, if the line is valid, otherwise `None` + :rtype: :class:`CGroupInfo` | None + + """ + # Clean up the line + line = line.strip() + + # Ensure the line is valid + match = cls.LINE_RE.match(line) + if not match: + return None + + # Create our new `CGroupInfo` and set attributes from the line + info = cls() + info.id, info.groups, info.path = match.groups() + + # Parse the controllers from the groups + info.controllers = [c.strip() for c in info.groups.split(",") if c.strip()] + + # Break up the path to grab container_id and pod_id if available + # e.g. /docker/ + # e.g. /kubepods/test/pod/ + parts = [p for p in info.path.split("/")] + + # Grab the container id from the path if a valid id is present + if len(parts): + match = cls.CONTAINER_RE.match(parts.pop()) + if match: + info.container_id = match.group(1) + + # Grab the pod id from the path if a valid id is present + if len(parts): + match = cls.POD_RE.match(parts.pop()) + if match: + info.pod_id = match.group(1) + + return info + + def __str__(self): + return self.__repr__() + + def __repr__(self): + return "{}(id={!r}, groups={!r}, path={!r}, container_id={!r}, controllers={!r}, pod_id={!r})".format( + self.__class__.__name__, self.id, self.groups, self.path, self.container_id, self.controllers, self.pod_id, + ) + + +def get_container_info(pid="self"): + """ + Helper to fetch the current container id, if we are running in a container + + We will parse `/proc/{pid}/cgroup` to determine our container id. + + The results of calling this function are cached + + :param pid: The pid of the cgroup file to parse (default: 'self') + :type pid: str | int + :returns: The cgroup file info if found, or else None + :rtype: :class:`CGroupInfo` | None + """ + try: + cgroup_file = "/proc/{0}/cgroup".format(pid) + with open(cgroup_file, mode="r") as fp: + for line in fp: + info = CGroupInfo.from_line(line) + if info and info.container_id: + return info + except Exception: + log.debug("Failed to parse cgroup file for pid %r", pid, exc_info=True) + + return None diff --git a/ddtrace/internal/runtime/metric_collectors.py b/ddtrace/internal/runtime/metric_collectors.py new file mode 100644 index 0000000000..eb140294b6 --- /dev/null +++ b/ddtrace/internal/runtime/metric_collectors.py @@ -0,0 +1,91 @@ +import os + +from .collector import ValueCollector +from .constants import ( + GC_COUNT_GEN0, + GC_COUNT_GEN1, + GC_COUNT_GEN2, + THREAD_COUNT, + MEM_RSS, + CTX_SWITCH_VOLUNTARY, + CTX_SWITCH_INVOLUNTARY, + CPU_TIME_SYS, + CPU_TIME_USER, + CPU_PERCENT, +) + + +class RuntimeMetricCollector(ValueCollector): + value = [] + periodic = True + + +class GCRuntimeMetricCollector(RuntimeMetricCollector): + """ Collector for garbage collection generational counts + + More information at https://docs.python.org/3/library/gc.html + """ + + required_modules = ["gc"] + + def collect_fn(self, keys): + gc = self.modules.get("gc") + + counts = gc.get_count() + metrics = [ + (GC_COUNT_GEN0, counts[0]), + (GC_COUNT_GEN1, counts[1]), + (GC_COUNT_GEN2, counts[2]), + ] + + return metrics + + +class PSUtilRuntimeMetricCollector(RuntimeMetricCollector): + """Collector for psutil metrics. + + Performs batched operations via proc.oneshot() to optimize the calls. + See https://psutil.readthedocs.io/en/latest/#psutil.Process.oneshot + for more information. + """ + + required_modules = ["psutil"] + stored_value = dict( + CPU_TIME_SYS_TOTAL=0, CPU_TIME_USER_TOTAL=0, CTX_SWITCH_VOLUNTARY_TOTAL=0, CTX_SWITCH_INVOLUNTARY_TOTAL=0, + ) + + def _on_modules_load(self): + self.proc = self.modules["psutil"].Process(os.getpid()) + + def collect_fn(self, keys): + with self.proc.oneshot(): + # only return time deltas + # TODO[tahir]: better abstraction for metrics based on last value + cpu_time_sys_total = self.proc.cpu_times().system + cpu_time_user_total = self.proc.cpu_times().user + cpu_time_sys = cpu_time_sys_total - self.stored_value["CPU_TIME_SYS_TOTAL"] + cpu_time_user = cpu_time_user_total - self.stored_value["CPU_TIME_USER_TOTAL"] + + ctx_switch_voluntary_total = self.proc.num_ctx_switches().voluntary + ctx_switch_involuntary_total = self.proc.num_ctx_switches().involuntary + ctx_switch_voluntary = ctx_switch_voluntary_total - self.stored_value["CTX_SWITCH_VOLUNTARY_TOTAL"] + ctx_switch_involuntary = ctx_switch_involuntary_total - self.stored_value["CTX_SWITCH_INVOLUNTARY_TOTAL"] + + self.stored_value = dict( + CPU_TIME_SYS_TOTAL=cpu_time_sys_total, + CPU_TIME_USER_TOTAL=cpu_time_user_total, + CTX_SWITCH_VOLUNTARY_TOTAL=ctx_switch_voluntary_total, + CTX_SWITCH_INVOLUNTARY_TOTAL=ctx_switch_involuntary_total, + ) + + metrics = [ + (THREAD_COUNT, self.proc.num_threads()), + (MEM_RSS, self.proc.memory_info().rss), + (CTX_SWITCH_VOLUNTARY, ctx_switch_voluntary), + (CTX_SWITCH_INVOLUNTARY, ctx_switch_involuntary), + (CPU_TIME_SYS, cpu_time_sys), + (CPU_TIME_USER, cpu_time_user), + (CPU_PERCENT, self.proc.cpu_percent()), + ] + + return metrics diff --git a/ddtrace/internal/runtime/runtime_metrics.py b/ddtrace/internal/runtime/runtime_metrics.py new file mode 100644 index 0000000000..cbfa8328b8 --- /dev/null +++ b/ddtrace/internal/runtime/runtime_metrics.py @@ -0,0 +1,74 @@ +import itertools + + +from ... import _worker +from ..logger import get_logger +from .constants import ( + DEFAULT_RUNTIME_METRICS, + DEFAULT_RUNTIME_TAGS, +) +from .metric_collectors import ( + GCRuntimeMetricCollector, + PSUtilRuntimeMetricCollector, +) +from .tag_collectors import ( + PlatformTagCollector, + TracerTagCollector, +) + +log = get_logger(__name__) + + +class RuntimeCollectorsIterable(object): + def __init__(self, enabled=None): + self._enabled = enabled or self.ENABLED + # Initialize the collectors. + self._collectors = [c() for c in self.COLLECTORS] + + def __iter__(self): + collected = (collector.collect(self._enabled) for collector in self._collectors) + return itertools.chain.from_iterable(collected) + + def __repr__(self): + return "{}(enabled={})".format(self.__class__.__name__, self._enabled,) + + +class RuntimeTags(RuntimeCollectorsIterable): + ENABLED = DEFAULT_RUNTIME_TAGS + COLLECTORS = [ + PlatformTagCollector, + TracerTagCollector, + ] + + +class RuntimeMetrics(RuntimeCollectorsIterable): + ENABLED = DEFAULT_RUNTIME_METRICS + COLLECTORS = [ + GCRuntimeMetricCollector, + PSUtilRuntimeMetricCollector, + ] + + +class RuntimeWorker(_worker.PeriodicWorkerThread): + """ Worker thread for collecting and writing runtime metrics to a DogStatsd + client. + """ + + FLUSH_INTERVAL = 10 + + def __init__(self, statsd_client, flush_interval=FLUSH_INTERVAL): + super(RuntimeWorker, self).__init__(interval=flush_interval, name=self.__class__.__name__) + self._statsd_client = statsd_client + self._runtime_metrics = RuntimeMetrics() + + def flush(self): + with self._statsd_client: + for key, value in self._runtime_metrics: + log.debug("Writing metric %s:%s", key, value) + self._statsd_client.gauge(key, value) + + run_periodic = flush + on_shutdown = flush + + def __repr__(self): + return "{}(runtime_metrics={})".format(self.__class__.__name__, self._runtime_metrics,) diff --git a/ddtrace/internal/runtime/tag_collectors.py b/ddtrace/internal/runtime/tag_collectors.py new file mode 100644 index 0000000000..41bad267ad --- /dev/null +++ b/ddtrace/internal/runtime/tag_collectors.py @@ -0,0 +1,58 @@ +from .collector import ValueCollector +from .constants import ( + SERVICE, + LANG_INTERPRETER, + LANG_VERSION, + LANG, + TRACER_VERSION, +) +from ...constants import ENV_KEY + + +class RuntimeTagCollector(ValueCollector): + periodic = False + value = [] + + +class TracerTagCollector(RuntimeTagCollector): + """ Tag collector for the ddtrace Tracer + """ + + required_modules = ["ddtrace"] + + def collect_fn(self, keys): + ddtrace = self.modules.get("ddtrace") + tags = [(SERVICE, service) for service in ddtrace.tracer._services] + if ENV_KEY in ddtrace.tracer.tags: + tags.append((ENV_KEY, ddtrace.tracer.tags[ENV_KEY])) + return tags + + +class PlatformTagCollector(RuntimeTagCollector): + """ Tag collector for the Python interpreter implementation. + + Tags collected: + - ``lang_interpreter``: + + * For CPython this is 'CPython'. + * For Pypy this is ``PyPy`` + * For Jython this is ``Jython`` + + - `lang_version``, eg ``2.7.10`` + - ``lang`` e.g. ``Python`` + - ``tracer_version`` e.g. ``0.29.0`` + + """ + + required_modules = ("platform", "ddtrace") + + def collect_fn(self, keys): + platform = self.modules.get("platform") + ddtrace = self.modules.get("ddtrace") + tags = [ + (LANG, "python"), + (LANG_INTERPRETER, platform.python_implementation()), + (LANG_VERSION, platform.python_version()), + (TRACER_VERSION, ddtrace.__version__), + ] + return tags diff --git a/ddtrace/internal/writer.py b/ddtrace/internal/writer.py new file mode 100644 index 0000000000..13250b8370 --- /dev/null +++ b/ddtrace/internal/writer.py @@ -0,0 +1,284 @@ +# stdlib +import itertools +import random +import time + +from .. import api +from .. import _worker +from ..internal.logger import get_logger +from ..sampler import BasePrioritySampler +from ..settings import config +from ..vendor import monotonic +from ddtrace.vendor.six.moves.queue import Queue, Full, Empty + +log = get_logger(__name__) + + +MAX_TRACES = 1000 + +DEFAULT_TIMEOUT = 5 +LOG_ERR_INTERVAL = 60 + + +class AgentWriter(_worker.PeriodicWorkerThread): + + QUEUE_PROCESSING_INTERVAL = 1 + + def __init__( + self, + hostname="localhost", + port=8126, + uds_path=None, + https=False, + shutdown_timeout=DEFAULT_TIMEOUT, + filters=None, + sampler=None, + priority_sampler=None, + dogstatsd=None, + ): + super(AgentWriter, self).__init__( + interval=self.QUEUE_PROCESSING_INTERVAL, exit_timeout=shutdown_timeout, name=self.__class__.__name__ + ) + self._trace_queue = Q(maxsize=MAX_TRACES) + self._filters = filters + self._sampler = sampler + self._priority_sampler = priority_sampler + self._last_error_ts = 0 + self.dogstatsd = dogstatsd + self.api = api.API( + hostname, port, uds_path=uds_path, https=https, priority_sampling=priority_sampler is not None + ) + if hasattr(time, "thread_time"): + self._last_thread_time = time.thread_time() + self.start() + + def recreate(self): + """ Create a new instance of :class:`AgentWriter` using the same settings from this instance + + :rtype: :class:`AgentWriter` + :returns: A new :class:`AgentWriter` instance + """ + writer = self.__class__( + hostname=self.api.hostname, + port=self.api.port, + uds_path=self.api.uds_path, + https=self.api.https, + shutdown_timeout=self.exit_timeout, + filters=self._filters, + priority_sampler=self._priority_sampler, + dogstatsd=self.dogstatsd, + ) + return writer + + @property + def _send_stats(self): + """Determine if we're sending stats or not.""" + return bool(config.health_metrics_enabled and self.dogstatsd) + + def write(self, spans=None, services=None): + if spans: + self._trace_queue.put(spans) + + def flush_queue(self): + try: + traces = self._trace_queue.get(block=False) + except Empty: + return + + if self._send_stats: + traces_queue_length = len(traces) + traces_queue_spans = sum(map(len, traces)) + + # Before sending the traces, make them go through the + # filters + try: + traces = self._apply_filters(traces) + except Exception: + log.error("error while filtering traces", exc_info=True) + return + + if self._send_stats: + traces_filtered = len(traces) - traces_queue_length + + # If we have data, let's try to send it. + traces_responses = self.api.send_traces(traces) + for response in traces_responses: + if isinstance(response, Exception) or response.status >= 400: + self._log_error_status(response) + elif self._priority_sampler or isinstance(self._sampler, BasePrioritySampler): + result_traces_json = response.get_json() + if result_traces_json and "rate_by_service" in result_traces_json: + if self._priority_sampler: + self._priority_sampler.update_rate_by_service_sample_rates( + result_traces_json["rate_by_service"], + ) + if isinstance(self._sampler, BasePrioritySampler): + self._sampler.update_rate_by_service_sample_rates(result_traces_json["rate_by_service"],) + + # Dump statistics + # NOTE: Do not use the buffering of dogstatsd as it's not thread-safe + # https://github.com/DataDog/datadogpy/issues/439 + if self._send_stats: + # Statistics about the queue length, size and number of spans + self.dogstatsd.increment("datadog.tracer.flushes") + self._histogram_with_total("datadog.tracer.flush.traces", traces_queue_length) + self._histogram_with_total("datadog.tracer.flush.spans", traces_queue_spans) + + # Statistics about the filtering + self._histogram_with_total("datadog.tracer.flush.traces_filtered", traces_filtered) + + # Statistics about API + self._histogram_with_total("datadog.tracer.api.requests", len(traces_responses)) + + self._histogram_with_total( + "datadog.tracer.api.errors", len(list(t for t in traces_responses if isinstance(t, Exception))) + ) + for status, grouped_responses in itertools.groupby( + sorted((t for t in traces_responses if not isinstance(t, Exception)), key=lambda r: r.status), + key=lambda r: r.status, + ): + self._histogram_with_total( + "datadog.tracer.api.responses", len(list(grouped_responses)), tags=["status:%d" % status] + ) + + # Statistics about the writer thread + if hasattr(time, "thread_time"): + new_thread_time = time.thread_time() + diff = new_thread_time - self._last_thread_time + self._last_thread_time = new_thread_time + self.dogstatsd.histogram("datadog.tracer.writer.cpu_time", diff) + + def _histogram_with_total(self, name, value, tags=None): + """Helper to add metric as a histogram and with a `.total` counter""" + self.dogstatsd.histogram(name, value, tags=tags) + self.dogstatsd.increment("%s.total" % (name,), value, tags=tags) + + def run_periodic(self): + if self._send_stats: + self.dogstatsd.gauge("datadog.tracer.heartbeat", 1) + + try: + self.flush_queue() + finally: + if not self._send_stats: + return + + # Statistics about the rate at which spans are inserted in the queue + dropped, enqueued, enqueued_lengths = self._trace_queue.reset_stats() + self.dogstatsd.gauge("datadog.tracer.queue.max_length", self._trace_queue.maxsize) + self.dogstatsd.increment("datadog.tracer.queue.dropped.traces", dropped) + self.dogstatsd.increment("datadog.tracer.queue.enqueued.traces", enqueued) + self.dogstatsd.increment("datadog.tracer.queue.enqueued.spans", enqueued_lengths) + + def on_shutdown(self): + try: + self.run_periodic() + finally: + if not self._send_stats: + return + + self.dogstatsd.increment("datadog.tracer.shutdown") + + def _log_error_status(self, response): + log_level = log.debug + now = monotonic.monotonic() + if now > self._last_error_ts + LOG_ERR_INTERVAL: + log_level = log.error + self._last_error_ts = now + prefix = "Failed to send traces to Datadog Agent at %s: " + if isinstance(response, api.Response): + log_level( + prefix + "HTTP error status %s, reason %s, message %s", + self.api, + response.status, + response.reason, + response.msg, + ) + else: + log_level( + prefix + "%s", self.api, response, + ) + + def _apply_filters(self, traces): + """ + Here we make each trace go through the filters configured in the + tracer. There is no need for a lock since the traces are owned by the + AgentWriter at that point. + """ + if self._filters is not None: + filtered_traces = [] + for trace in traces: + for filtr in self._filters: + trace = filtr.process_trace(trace) + if trace is None: + break + if trace is not None: + filtered_traces.append(trace) + return filtered_traces + return traces + + +class Q(Queue): + """ + Q is a threadsafe queue that let's you pop everything at once and + will randomly overwrite elements when it's over the max size. + + This queue also exposes some statistics about its length, the number of items dropped, etc. + """ + + def __init__(self, maxsize=0): + # Cannot use super() here because Queue in Python2 is old style class + Queue.__init__(self, maxsize) + # Number of item dropped (queue full) + self.dropped = 0 + # Number of items accepted + self.accepted = 0 + # Cumulative length of accepted items + self.accepted_lengths = 0 + + def put(self, item): + try: + # Cannot use super() here because Queue in Python2 is old style class + Queue.put(self, item, block=False) + except Full: + # If the queue is full, replace a random item. We need to make sure + # the queue is not emptied was emptied in the meantime, so we lock + # check qsize value. + with self.mutex: + qsize = self._qsize() + if qsize != 0: + idx = random.randrange(0, qsize) + self.queue[idx] = item + log.warning("Writer queue is full has more than %d traces, some traces will be lost", self.maxsize) + self.dropped += 1 + self._update_stats(item) + return + # The queue has been emptied, simply retry putting item + return self.put(item) + else: + with self.mutex: + self._update_stats(item) + + def _update_stats(self, item): + # self.mutex needs to be locked to make sure we don't lose data when resetting + self.accepted += 1 + if hasattr(item, "__len__"): + item_length = len(item) + else: + item_length = 1 + self.accepted_lengths += item_length + + def reset_stats(self): + """Reset the stats to 0. + + :return: The current value of dropped, accepted and accepted_lengths. + """ + with self.mutex: + dropped, accepted, accepted_lengths = (self.dropped, self.accepted, self.accepted_lengths) + self.dropped, self.accepted, self.accepted_lengths = 0, 0, 0 + return dropped, accepted, accepted_lengths + + def _get(self): + things = self.queue + self._init(self.maxsize) + return things diff --git a/ddtrace/monkey.py b/ddtrace/monkey.py new file mode 100644 index 0000000000..88b9fe984f --- /dev/null +++ b/ddtrace/monkey.py @@ -0,0 +1,190 @@ +"""Patch librairies to be automatically instrumented. + +It can monkey patch supported standard libraries and third party modules. +A patched module will automatically report spans with its default configuration. + +A library instrumentation can be configured (for instance, to report as another service) +using Pin. For that, check its documentation. +""" +import importlib +import sys +import threading + +from ddtrace.vendor.wrapt.importer import when_imported + +from .internal.logger import get_logger + + +log = get_logger(__name__) + +# Default set of modules to automatically patch or not +PATCH_MODULES = { + 'asyncio': False, + 'boto': True, + 'botocore': True, + 'bottle': False, + 'cassandra': True, + 'celery': True, + 'consul': True, + 'elasticsearch': True, + 'algoliasearch': True, + 'futures': False, # experimental propagation + 'grpc': True, + 'mongoengine': True, + 'mysql': True, + 'mysqldb': True, + 'pymysql': True, + 'psycopg': True, + 'pylibmc': True, + 'pymemcache': True, + 'pymongo': True, + 'redis': True, + 'rediscluster': True, + 'requests': True, + 'sqlalchemy': False, # Prefer DB client instrumentation + 'sqlite3': True, + 'aiohttp': True, # requires asyncio (Python 3.4+) + 'aiopg': True, + 'aiobotocore': False, + 'httplib': False, + 'vertica': True, + 'molten': True, + 'jinja2': True, + 'mako': True, + 'flask': True, + 'kombu': False, + + # Ignore some web framework integrations that might be configured explicitly in code + 'django': False, + 'falcon': False, + 'pylons': False, + 'pyramid': False, + + # Standard library modules off by default + 'logging': False, +} + +_LOCK = threading.Lock() +_PATCHED_MODULES = set() + +# Modules which are patched on first use +# DEV: These modules are patched when the user first imports them, rather than +# explicitly importing and patching them on application startup `ddtrace.patch_all(module=True)` +# DEV: This ensures we do not patch a module until it is needed +# DEV: => +_PATCH_ON_IMPORT = { + 'celery': ('celery', ), + 'flask': ('flask, '), + 'gevent': ('gevent', ), + 'requests': ('requests', ), +} + + +class PatchException(Exception): + """Wraps regular `Exception` class when patching modules""" + pass + + +def _on_import_factory(module, raise_errors=True): + """Factory to create an import hook for the provided module name""" + def on_import(hook): + # Import and patch module + path = 'ddtrace.contrib.%s' % module + imported_module = importlib.import_module(path) + imported_module.patch() + + return on_import + + +def patch_all(**patch_modules): + """Automatically patches all available modules. + + :param dict patch_modules: Override whether particular modules are patched or not. + + >>> patch_all(redis=False, cassandra=False) + """ + modules = PATCH_MODULES.copy() + modules.update(patch_modules) + + patch(raise_errors=False, **modules) + + +def patch(raise_errors=True, **patch_modules): + """Patch only a set of given modules. + + :param bool raise_errors: Raise error if one patch fail. + :param dict patch_modules: List of modules to patch. + + >>> patch(psycopg=True, elasticsearch=True) + """ + modules = [m for (m, should_patch) in patch_modules.items() if should_patch] + for module in modules: + if module in _PATCH_ON_IMPORT: + # If the module has already been imported then patch immediately + if module in sys.modules: + patch_module(module, raise_errors=raise_errors) + + # Otherwise, add a hook to patch when it is imported for the first time + else: + # Use factory to create handler to close over `module` and `raise_errors` values from this loop + when_imported(module)(_on_import_factory(module, raise_errors)) + + # manually add module to patched modules + _PATCHED_MODULES.add(module) + else: + patch_module(module, raise_errors=raise_errors) + + patched_modules = get_patched_modules() + log.info( + 'patched %s/%s modules (%s)', + len(patched_modules), + len(modules), + ','.join(patched_modules), + ) + + +def patch_module(module, raise_errors=True): + """Patch a single module + + Returns if the module got properly patched. + """ + try: + return _patch_module(module) + except Exception: + if raise_errors: + raise + log.debug('failed to patch %s', module, exc_info=True) + return False + + +def get_patched_modules(): + """Get the list of patched modules""" + with _LOCK: + return sorted(_PATCHED_MODULES) + + +def _patch_module(module): + """_patch_module will attempt to monkey patch the module. + + Returns if the module got patched. + Can also raise errors if it fails. + """ + path = 'ddtrace.contrib.%s' % module + with _LOCK: + if module in _PATCHED_MODULES and module not in _PATCH_ON_IMPORT: + log.debug('already patched: %s', path) + return False + + try: + imported_module = importlib.import_module(path) + imported_module.patch() + except ImportError: + # if the import fails, the integration is not available + raise PatchException('integration not available') + except AttributeError: + # if patch() is not available in the module, it means + # that the library is not installed in the environment + raise PatchException('module not installed') + + _PATCHED_MODULES.add(module) + return True diff --git a/ddtrace/opentracer/__init__.py b/ddtrace/opentracer/__init__.py new file mode 100644 index 0000000000..cf5e041217 --- /dev/null +++ b/ddtrace/opentracer/__init__.py @@ -0,0 +1,7 @@ +from .tracer import Tracer +from .helpers import set_global_tracer + +__all__ = [ + 'Tracer', + 'set_global_tracer', +] diff --git a/ddtrace/opentracer/helpers.py b/ddtrace/opentracer/helpers.py new file mode 100644 index 0000000000..f088c3f791 --- /dev/null +++ b/ddtrace/opentracer/helpers.py @@ -0,0 +1,16 @@ +import opentracing +import ddtrace + +""" +Helper routines for Datadog OpenTracing. +""" + + +def set_global_tracer(tracer): + """Sets the global tracers to the given tracer.""" + + # overwrite the opentracer reference + opentracing.tracer = tracer + + # overwrite the Datadog tracer reference + ddtrace.tracer = tracer._dd_tracer diff --git a/ddtrace/opentracer/propagation/__init__.py b/ddtrace/opentracer/propagation/__init__.py new file mode 100644 index 0000000000..28f5ad626c --- /dev/null +++ b/ddtrace/opentracer/propagation/__init__.py @@ -0,0 +1,6 @@ +from .http import HTTPPropagator + + +__all__ = [ + 'HTTPPropagator', +] diff --git a/ddtrace/opentracer/propagation/binary.py b/ddtrace/opentracer/propagation/binary.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/ddtrace/opentracer/propagation/http.py b/ddtrace/opentracer/propagation/http.py new file mode 100644 index 0000000000..9652c8eaf9 --- /dev/null +++ b/ddtrace/opentracer/propagation/http.py @@ -0,0 +1,79 @@ +from opentracing import InvalidCarrierException, SpanContextCorruptedException +from ddtrace.propagation.http import HTTPPropagator as DDHTTPPropagator + +from ...internal.logger import get_logger +from ..span_context import SpanContext +from .propagator import Propagator + + +log = get_logger(__name__) + +HTTP_BAGGAGE_PREFIX = 'ot-baggage-' +HTTP_BAGGAGE_PREFIX_LEN = len(HTTP_BAGGAGE_PREFIX) + + +class HTTPPropagator(Propagator): + """OpenTracing compatible HTTP_HEADER and TEXT_MAP format propagator. + + `HTTPPropagator` provides compatibility by using existing OpenTracing + compatible methods from the ddtracer along with new logic supporting the + outstanding OpenTracing-defined functionality. + """ + + __slots__ = ['_dd_propagator'] + + def __init__(self): + self._dd_propagator = DDHTTPPropagator() + + def inject(self, span_context, carrier): + """Inject a span context into a carrier. + + *span_context* is injected into the carrier by first using an + :class:`ddtrace.propagation.http.HTTPPropagator` to inject the ddtracer + specific fields. + + Then the baggage is injected into *carrier*. + + :param span_context: span context to inject. + + :param carrier: carrier to inject into. + """ + if not isinstance(carrier, dict): + raise InvalidCarrierException('propagator expects carrier to be a dict') + + self._dd_propagator.inject(span_context._dd_context, carrier) + + # Add the baggage + if span_context.baggage is not None: + for key in span_context.baggage: + carrier[HTTP_BAGGAGE_PREFIX + key] = span_context.baggage[key] + + def extract(self, carrier): + """Extract a span context from a carrier. + + :class:`ddtrace.propagation.http.HTTPPropagator` is used to extract + ddtracer supported fields into a `ddtrace.Context` context which is + combined with new logic to extract the baggage which is returned in an + OpenTracing compatible span context. + + :param carrier: carrier to extract from. + + :return: extracted span context. + """ + if not isinstance(carrier, dict): + raise InvalidCarrierException('propagator expects carrier to be a dict') + + ddspan_ctx = self._dd_propagator.extract(carrier) + + # if the dd propagator fails then it will return a new empty span + # context (with trace_id=None), we however want to raise an exception + # if this occurs. + if not ddspan_ctx.trace_id: + raise SpanContextCorruptedException('failed to extract span context') + + baggage = {} + for key in carrier: + if key.startswith(HTTP_BAGGAGE_PREFIX): + baggage[key[HTTP_BAGGAGE_PREFIX_LEN:]] = carrier[key] + + return SpanContext(ddcontext=ddspan_ctx, baggage=baggage) diff --git a/ddtrace/opentracer/propagation/propagator.py b/ddtrace/opentracer/propagation/propagator.py new file mode 100644 index 0000000000..b7f7cda899 --- /dev/null +++ b/ddtrace/opentracer/propagation/propagator.py @@ -0,0 +1,15 @@ +from abc import ABCMeta, abstractmethod + +# ref: https://stackoverflow.com/a/38668373 +ABC = ABCMeta('ABC', (object,), {'__slots__': ()}) + + +class Propagator(ABC): + + @abstractmethod + def inject(self, span_context, carrier): + pass + + @abstractmethod + def extract(self, carrier): + pass diff --git a/ddtrace/opentracer/propagation/text.py b/ddtrace/opentracer/propagation/text.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/ddtrace/opentracer/settings.py b/ddtrace/opentracer/settings.py new file mode 100644 index 0000000000..f4a5bee3f3 --- /dev/null +++ b/ddtrace/opentracer/settings.py @@ -0,0 +1,34 @@ +from collections import namedtuple + + +CONFIG_KEY_NAMES = [ + 'AGENT_HOSTNAME', + 'AGENT_HTTPS', + 'AGENT_PORT', + 'DEBUG', + 'ENABLED', + 'GLOBAL_TAGS', + 'SAMPLER', + 'PRIORITY_SAMPLING', + 'SETTINGS', +] + +# Keys used for the configuration dict +ConfigKeyNames = namedtuple('ConfigKeyNames', CONFIG_KEY_NAMES) + +ConfigKeys = ConfigKeyNames( + AGENT_HOSTNAME='agent_hostname', + AGENT_HTTPS='agent_https', + AGENT_PORT='agent_port', + DEBUG='debug', + ENABLED='enabled', + GLOBAL_TAGS='global_tags', + SAMPLER='sampler', + PRIORITY_SAMPLING='priority_sampling', + SETTINGS='settings', +) + + +def config_invalid_keys(config): + """Returns a list of keys that exist in *config* and not in KEYS.""" + return [key for key in config.keys() if key not in ConfigKeys] diff --git a/ddtrace/opentracer/span.py b/ddtrace/opentracer/span.py new file mode 100644 index 0000000000..4cd6d16373 --- /dev/null +++ b/ddtrace/opentracer/span.py @@ -0,0 +1,167 @@ +import threading + +from opentracing import Span as OpenTracingSpan +from opentracing.ext import tags as OTTags +from ddtrace.span import Span as DatadogSpan +from ddtrace.ext import errors +from .tags import Tags + +from .span_context import SpanContext + + +class Span(OpenTracingSpan): + """Datadog implementation of :class:`opentracing.Span`""" + + def __init__(self, tracer, context, operation_name): + if context is not None: + context = SpanContext(ddcontext=context._dd_context, + baggage=context.baggage) + else: + context = SpanContext() + + super(Span, self).__init__(tracer, context) + + self.finished = False + self._lock = threading.Lock() + # use a datadog span + self._dd_span = DatadogSpan(tracer._dd_tracer, operation_name, + context=context._dd_context) + + def finish(self, finish_time=None): + """Finish the span. + + This calls finish on the ddspan. + + :param finish_time: specify a custom finish time with a unix timestamp + per time.time() + :type timestamp: float + """ + if self.finished: + return + + # finish the datadog span + self._dd_span.finish(finish_time) + self.finished = True + + def set_baggage_item(self, key, value): + """Sets a baggage item in the span context of this span. + + Baggage is used to propagate state between spans. + + :param key: baggage item key + :type key: str + + :param value: baggage item value + :type value: a type that can be compat.stringify()'d + + :rtype: Span + :return: itself for chaining calls + """ + new_ctx = self.context.with_baggage_item(key, value) + with self._lock: + self._context = new_ctx + return self + + def get_baggage_item(self, key): + """Gets a baggage item from the span context of this span. + + :param key: baggage item key + :type key: str + + :rtype: str + :return: the baggage value for the given key or ``None``. + """ + return self.context.get_baggage_item(key) + + def set_operation_name(self, operation_name): + """Set the operation name.""" + self._dd_span.name = operation_name + + def log_kv(self, key_values, timestamp=None): + """Add a log record to this span. + + Passes on relevant opentracing key values onto the datadog span. + + :param key_values: a dict of string keys and values of any type + :type key_values: dict + + :param timestamp: a unix timestamp per time.time() + :type timestamp: float + + :return: the span itself, for call chaining + :rtype: Span + """ + + # match opentracing defined keys to datadog functionality + # opentracing/specification/blob/1be630515dafd4d2a468d083300900f89f28e24d/semantic_conventions.md#log-fields-table + for key, val in key_values.items(): + if key == 'event' and val == 'error': + # TODO: not sure if it's actually necessary to set the error manually + self._dd_span.error = 1 + self.set_tag('error', 1) + elif key == 'error' or key == 'error.object': + self.set_tag(errors.ERROR_TYPE, val) + elif key == 'message': + self.set_tag(errors.ERROR_MSG, val) + elif key == 'stack': + self.set_tag(errors.ERROR_STACK, val) + else: + pass + + return self + + def set_tag(self, key, value): + """Set a tag on the span. + + This sets the tag on the underlying datadog span. + """ + if key == Tags.SPAN_TYPE: + self._dd_span.span_type = value + elif key == Tags.SERVICE_NAME: + self._dd_span.service = value + elif key == Tags.RESOURCE_NAME or key == OTTags.DATABASE_STATEMENT: + self._dd_span.resource = value + elif key == OTTags.PEER_HOSTNAME: + self._dd_span.set_tag(Tags.TARGET_HOST, value) + elif key == OTTags.PEER_PORT: + self._dd_span.set_tag(Tags.TARGET_PORT, value) + elif key == Tags.SAMPLING_PRIORITY: + self._dd_span.context.sampling_priority = value + else: + self._dd_span.set_tag(key, value) + + def _get_tag(self, key): + """Gets a tag from the span. + + This method retrieves the tag from the underlying datadog span. + """ + return self._dd_span.get_tag(key) + + def _get_metric(self, key): + """Gets a metric from the span. + + This method retrieves the metric from the underlying datadog span. + """ + return self._dd_span.get_metric(key) + + def __enter__(self): + return self + + def __exit__(self, exc_type, exc_val, exc_tb): + if exc_type: + self._dd_span.set_exc_info(exc_type, exc_val, exc_tb) + + # note: self.finish() AND _dd_span.__exit__ will call _span.finish() but + # it is idempotent + self._dd_span.__exit__(exc_type, exc_val, exc_tb) + self.finish() + + def _associate_dd_span(self, ddspan): + """Associates a DD span with this span.""" + # get the datadog span context + self._dd_span = ddspan + self.context._dd_context = ddspan.context + + @property + def _dd_context(self): + return self._dd_span.context diff --git a/ddtrace/opentracer/span_context.py b/ddtrace/opentracer/span_context.py new file mode 100644 index 0000000000..3579422831 --- /dev/null +++ b/ddtrace/opentracer/span_context.py @@ -0,0 +1,50 @@ +from opentracing import SpanContext as OpenTracingSpanContext + +from ddtrace.context import Context as DatadogContext + + +class SpanContext(OpenTracingSpanContext): + """Implementation of the OpenTracing span context.""" + + def __init__(self, trace_id=None, span_id=None, + sampling_priority=None, baggage=None, ddcontext=None): + # create a new dict for the baggage if it is not provided + # NOTE: it would be preferable to use opentracing.SpanContext.EMPTY_BAGGAGE + # but it is mutable. + # see: opentracing-python/blob/8775c7bfc57fd66e1c8bcf9a54d3e434d37544f9/opentracing/span.py#L30 + baggage = baggage or {} + + if ddcontext is not None: + self._dd_context = ddcontext + else: + self._dd_context = DatadogContext( + trace_id=trace_id, + span_id=span_id, + sampling_priority=sampling_priority, + ) + + self._baggage = dict(baggage) + + @property + def baggage(self): + return self._baggage + + def set_baggage_item(self, key, value): + """Sets a baggage item in this span context. + + Note that this operation mutates the baggage of this span context + """ + self.baggage[key] = value + + def with_baggage_item(self, key, value): + """Returns a copy of this span with a new baggage item. + + Useful for instantiating new child span contexts. + """ + baggage = dict(self._baggage) + baggage[key] = value + return SpanContext(ddcontext=self._dd_context, baggage=baggage) + + def get_baggage_item(self, key): + """Gets a baggage item in this span context.""" + return self.baggage.get(key, None) diff --git a/ddtrace/opentracer/tags.py b/ddtrace/opentracer/tags.py new file mode 100644 index 0000000000..9b413277ba --- /dev/null +++ b/ddtrace/opentracer/tags.py @@ -0,0 +1,21 @@ +from collections import namedtuple + +TAG_NAMES = [ + 'RESOURCE_NAME', + 'SAMPLING_PRIORITY', + 'SERVICE_NAME', + 'SPAN_TYPE', + 'TARGET_HOST', + 'TARGET_PORT', +] + +TagNames = namedtuple('TagNames', TAG_NAMES) + +Tags = TagNames( + RESOURCE_NAME='resource.name', + SAMPLING_PRIORITY='sampling.priority', + SERVICE_NAME='service.name', + TARGET_HOST='out.host', + TARGET_PORT='out.port', + SPAN_TYPE='span.type', +) diff --git a/ddtrace/opentracer/tracer.py b/ddtrace/opentracer/tracer.py new file mode 100644 index 0000000000..b80402f2c4 --- /dev/null +++ b/ddtrace/opentracer/tracer.py @@ -0,0 +1,301 @@ +import opentracing +from opentracing import Format +from opentracing.scope_managers import ThreadLocalScopeManager + +import ddtrace +from ddtrace import Tracer as DatadogTracer +from ddtrace.constants import FILTERS_KEY +from ddtrace.settings import ConfigException +from ddtrace.utils import merge_dicts +from ddtrace.utils.config import get_application_name + +from ..internal.logger import get_logger +from .propagation import HTTPPropagator +from .span import Span +from .span_context import SpanContext +from .settings import ConfigKeys as keys, config_invalid_keys +from .utils import get_context_provider_for_scope_manager + +log = get_logger(__name__) + +DEFAULT_CONFIG = { + keys.AGENT_HOSTNAME: 'localhost', + keys.AGENT_HTTPS: False, + keys.AGENT_PORT: 8126, + keys.DEBUG: False, + keys.ENABLED: True, + keys.GLOBAL_TAGS: {}, + keys.SAMPLER: None, + keys.PRIORITY_SAMPLING: None, + keys.SETTINGS: { + FILTERS_KEY: [], + }, +} + + +class Tracer(opentracing.Tracer): + """A wrapper providing an OpenTracing API for the Datadog tracer.""" + + def __init__(self, service_name=None, config=None, scope_manager=None, dd_tracer=None): + """Initialize a new Datadog opentracer. + + :param service_name: (optional) the name of the service that this + tracer will be used with. Note if not provided, a service name will + try to be determined based off of ``sys.argv``. If this fails a + :class:`ddtrace.settings.ConfigException` will be raised. + :param config: (optional) a configuration object to specify additional + options. See the documentation for further information. + :param scope_manager: (optional) the scope manager for this tracer to + use. The available managers are listed in the Python OpenTracing repo + here: https://github.com/opentracing/opentracing-python#scope-managers. + If ``None`` is provided, defaults to + :class:`opentracing.scope_managers.ThreadLocalScopeManager`. + :param dd_tracer: (optional) the Datadog tracer for this tracer to use. This + should only be passed if a custom Datadog tracer is being used. Defaults + to the global ``ddtrace.tracer`` tracer. + """ + # Merge the given config with the default into a new dict + config = config or {} + self._config = merge_dicts(DEFAULT_CONFIG, config) + + # Pull out commonly used properties for performance + self._service_name = service_name or get_application_name() + self._enabled = self._config.get(keys.ENABLED) + self._debug = self._config.get(keys.DEBUG) + + if self._debug: + # Ensure there are no typos in any of the keys + invalid_keys = config_invalid_keys(self._config) + if invalid_keys: + str_invalid_keys = ','.join(invalid_keys) + raise ConfigException('invalid key(s) given (%s)'.format(str_invalid_keys)) + + if not self._service_name: + raise ConfigException(""" Cannot detect the \'service_name\'. + Please set the \'service_name=\' + keyword argument. + """) + + self._scope_manager = scope_manager or ThreadLocalScopeManager() + + dd_context_provider = get_context_provider_for_scope_manager(self._scope_manager) + + self._dd_tracer = dd_tracer or ddtrace.tracer or DatadogTracer() + self._dd_tracer.set_tags(self._config.get(keys.GLOBAL_TAGS)) + self._dd_tracer.configure(enabled=self._enabled, + hostname=self._config.get(keys.AGENT_HOSTNAME), + https=self._config.get(keys.AGENT_HTTPS), + port=self._config.get(keys.AGENT_PORT), + sampler=self._config.get(keys.SAMPLER), + settings=self._config.get(keys.SETTINGS), + priority_sampling=self._config.get(keys.PRIORITY_SAMPLING), + context_provider=dd_context_provider, + ) + self._propagators = { + Format.HTTP_HEADERS: HTTPPropagator(), + Format.TEXT_MAP: HTTPPropagator(), + } + + @property + def scope_manager(self): + """Returns the scope manager being used by this tracer.""" + return self._scope_manager + + def start_active_span(self, operation_name, child_of=None, references=None, + tags=None, start_time=None, ignore_active_span=False, + finish_on_close=True): + """Returns a newly started and activated `Scope`. + The returned `Scope` supports with-statement contexts. For example:: + + with tracer.start_active_span('...') as scope: + scope.span.set_tag('http.method', 'GET') + do_some_work() + # Span.finish() is called as part of Scope deactivation through + # the with statement. + + It's also possible to not finish the `Span` when the `Scope` context + expires:: + + with tracer.start_active_span('...', + finish_on_close=False) as scope: + scope.span.set_tag('http.method', 'GET') + do_some_work() + # Span.finish() is not called as part of Scope deactivation as + # `finish_on_close` is `False`. + + :param operation_name: name of the operation represented by the new + span from the perspective of the current service. + :param child_of: (optional) a Span or SpanContext instance representing + the parent in a REFERENCE_CHILD_OF Reference. If specified, the + `references` parameter must be omitted. + :param references: (optional) a list of Reference objects that identify + one or more parent SpanContexts. (See the Reference documentation + for detail). + :param tags: an optional dictionary of Span Tags. The caller gives up + ownership of that dictionary, because the Tracer may use it as-is + to avoid extra data copying. + :param start_time: an explicit Span start time as a unix timestamp per + time.time(). + :param ignore_active_span: (optional) an explicit flag that ignores + the current active `Scope` and creates a root `Span`. + :param finish_on_close: whether span should automatically be finished + when `Scope.close()` is called. + :return: a `Scope`, already registered via the `ScopeManager`. + """ + otspan = self.start_span( + operation_name=operation_name, + child_of=child_of, + references=references, + tags=tags, + start_time=start_time, + ignore_active_span=ignore_active_span, + ) + + # activate this new span + scope = self._scope_manager.activate(otspan, finish_on_close) + + return scope + + def start_span(self, operation_name=None, child_of=None, references=None, + tags=None, start_time=None, ignore_active_span=False): + """Starts and returns a new Span representing a unit of work. + + Starting a root Span (a Span with no causal references):: + + tracer.start_span('...') + + Starting a child Span (see also start_child_span()):: + + tracer.start_span( + '...', + child_of=parent_span) + + Starting a child Span in a more verbose way:: + + tracer.start_span( + '...', + references=[opentracing.child_of(parent_span)]) + + Note: the precedence when defining a relationship is the following, from highest to lowest: + 1. *child_of* + 2. *references* + 3. `scope_manager.active` (unless *ignore_active_span* is True) + 4. None + + Currently Datadog only supports `child_of` references. + + :param operation_name: name of the operation represented by the new + span from the perspective of the current service. + :param child_of: (optional) a Span or SpanContext instance representing + the parent in a REFERENCE_CHILD_OF Reference. If specified, the + `references` parameter must be omitted. + :param references: (optional) a list of Reference objects that identify + one or more parent SpanContexts. (See the Reference documentation + for detail) + :param tags: an optional dictionary of Span Tags. The caller gives up + ownership of that dictionary, because the Tracer may use it as-is + to avoid extra data copying. + :param start_time: an explicit Span start time as a unix timestamp per + time.time() + :param ignore_active_span: an explicit flag that ignores the current + active `Scope` and creates a root `Span`. + :return: an already-started Span instance. + """ + ot_parent = None # 'ot_parent' is more readable than 'child_of' + ot_parent_context = None # the parent span's context + dd_parent = None # the child_of to pass to the ddtracer + + if child_of is not None: + ot_parent = child_of # 'ot_parent' is more readable than 'child_of' + elif references and isinstance(references, list): + # we currently only support child_of relations to one span + ot_parent = references[0].referenced_context + + # - whenever child_of is not None ddspans with parent-child + # relationships will share a ddcontext which maintains a hierarchy of + # ddspans for the execution flow + # - when child_of is a ddspan then the ddtracer uses this ddspan to + # create the child ddspan + # - when child_of is a ddcontext then the ddtracer uses the ddcontext to + # get_current_span() for the parent + if ot_parent is None and not ignore_active_span: + # attempt to get the parent span from the scope manager + scope = self._scope_manager.active + parent_span = getattr(scope, 'span', None) + ot_parent_context = getattr(parent_span, 'context', None) + # we want the ddcontext of the active span in order to maintain the + # ddspan hierarchy + dd_parent = getattr(ot_parent_context, '_dd_context', None) + + # if we cannot get the context then try getting it from the DD tracer + # this emulates the behaviour of tracer.trace() + if dd_parent is None: + dd_parent = self._dd_tracer.get_call_context() + elif ot_parent is not None and isinstance(ot_parent, Span): + # a span is given to use as a parent + ot_parent_context = ot_parent.context + dd_parent = ot_parent._dd_span + elif ot_parent is not None and isinstance(ot_parent, SpanContext): + # a span context is given to use to find the parent ddspan + dd_parent = ot_parent._dd_context + elif ot_parent is None: + # user wants to create a new parent span we don't have to do + # anything + pass + else: + raise TypeError('invalid span configuration given') + + # create a new otspan and ddspan using the ddtracer and associate it + # with the new otspan + ddspan = self._dd_tracer.start_span( + name=operation_name, + child_of=dd_parent, + service=self._service_name, + ) + + # set the start time if one is specified + ddspan.start = start_time or ddspan.start + + otspan = Span(self, ot_parent_context, operation_name) + # sync up the OT span with the DD span + otspan._associate_dd_span(ddspan) + + if tags is not None: + for k in tags: + # Make sure we set the tags on the otspan to ensure that the special compatibility tags + # are handled correctly (resource name, span type, sampling priority, etc). + otspan.set_tag(k, tags[k]) + + return otspan + + def inject(self, span_context, format, carrier): # noqa: A002 + """Injects a span context into a carrier. + + :param span_context: span context to inject. + :param format: format to encode the span context with. + :param carrier: the carrier of the encoded span context. + """ + propagator = self._propagators.get(format, None) + + if propagator is None: + raise opentracing.UnsupportedFormatException + + propagator.inject(span_context, carrier) + + def extract(self, format, carrier): # noqa: A002 + """Extracts a span context from a carrier. + + :param format: format that the carrier is encoded with. + :param carrier: the carrier to extract from. + """ + propagator = self._propagators.get(format, None) + + if propagator is None: + raise opentracing.UnsupportedFormatException + + # we have to manually activate the returned context from a distributed + # trace + ot_span_ctx = propagator.extract(carrier) + dd_span_ctx = ot_span_ctx._dd_context + self._dd_tracer.context_provider.activate(dd_span_ctx) + return ot_span_ctx diff --git a/ddtrace/opentracer/utils.py b/ddtrace/opentracer/utils.py new file mode 100644 index 0000000000..06953ba0cd --- /dev/null +++ b/ddtrace/opentracer/utils.py @@ -0,0 +1,22 @@ +# DEV: If `asyncio` or `gevent` are unavailable we do not throw an error, +# `context_provider` will just not be set and we'll get an `AttributeError` instead + + +def get_context_provider_for_scope_manager(scope_manager): + """Returns the context_provider to use with a given scope_manager.""" + + scope_manager_type = type(scope_manager).__name__ + + # avoid having to import scope managers which may not be compatible + # with the version of python being used + if scope_manager_type == 'AsyncioScopeManager': + import ddtrace.contrib.asyncio + dd_context_provider = ddtrace.contrib.asyncio.context_provider + elif scope_manager_type == 'GeventScopeManager': + import ddtrace.contrib.gevent + dd_context_provider = ddtrace.contrib.gevent.context_provider + else: + from ddtrace.provider import DefaultContextProvider + dd_context_provider = DefaultContextProvider() + + return dd_context_provider diff --git a/ddtrace/payload.py b/ddtrace/payload.py new file mode 100644 index 0000000000..acbede4fbc --- /dev/null +++ b/ddtrace/payload.py @@ -0,0 +1,90 @@ +from .encoding import get_encoder + + +class PayloadFull(Exception): + """The payload is full.""" + pass + + +class Payload(object): + """ + Trace agent API payload buffer class + + This class is used to encoded and store traces to build the payload we send to + the trace agent. + + DEV: We encoded and buffer traces so that we can reliable determine the size of + the payload easily so we can flush based on the payload size. + """ + __slots__ = ('traces', 'size', 'encoder', 'max_payload_size') + + # Trace agent limit payload size of 10 MB + # 5 MB should be a good average efficient size + DEFAULT_MAX_PAYLOAD_SIZE = 5 * 1000000 + + def __init__(self, encoder=None, max_payload_size=DEFAULT_MAX_PAYLOAD_SIZE): + """ + Constructor for Payload + + :param encoder: The encoded to use, default is the default encoder + :type encoder: ``ddtrace.encoding.Encoder`` + :param max_payload_size: The max number of bytes a payload should be before + being considered full (default: 5mb) + """ + self.max_payload_size = max_payload_size + self.encoder = encoder or get_encoder() + self.traces = [] + self.size = 0 + + def add_trace(self, trace): + """ + Encode and append a trace to this payload + + :param trace: A trace to append + :type trace: A list of :class:`ddtrace.span.Span` + """ + # No trace or empty trace was given, ignore + if not trace: + return + + # Encode the trace, append, and add it's length to the size + encoded = self.encoder.encode_trace(trace) + if len(encoded) + self.size > self.max_payload_size: + raise PayloadFull() + self.traces.append(encoded) + self.size += len(encoded) + + @property + def length(self): + """ + Get the number of traces in this payload + + :returns: The number of traces in the payload + :rtype: int + """ + return len(self.traces) + + @property + def empty(self): + """ + Whether this payload is empty or not + + :returns: Whether this payload is empty or not + :rtype: bool + """ + return self.length == 0 + + def get_payload(self): + """ + Get the fully encoded payload + + :returns: The fully encoded payload + :rtype: str | bytes + """ + # DEV: `self.traces` is an array of encoded traces, `join_encoded` joins them together + return self.encoder.join_encoded(self.traces) + + def __repr__(self): + """Get the string representation of this payload""" + return '{0}(length={1}, size={2} B, max_payload_size={3} B)'.format( + self.__class__.__name__, self.length, self.size, self.max_payload_size) diff --git a/ddtrace/pin.py b/ddtrace/pin.py new file mode 100644 index 0000000000..c64755b491 --- /dev/null +++ b/ddtrace/pin.py @@ -0,0 +1,184 @@ +import ddtrace + +from ddtrace.vendor import debtcollector + +from .internal.logger import get_logger +from .vendor import wrapt + + +log = get_logger(__name__) + + +# To set attributes on wrapt proxy objects use this prefix: +# http://wrapt.readthedocs.io/en/latest/wrappers.html +_DD_PIN_NAME = '_datadog_pin' +_DD_PIN_PROXY_NAME = '_self_' + _DD_PIN_NAME + + +class Pin(object): + """Pin (a.k.a Patch INfo) is a small class which is used to + set tracing metadata on a particular traced connection. + This is useful if you wanted to, say, trace two different + database clusters. + + >>> conn = sqlite.connect('/tmp/user.db') + >>> # Override a pin for a specific connection + >>> pin = Pin.override(conn, service='user-db') + >>> conn = sqlite.connect('/tmp/image.db') + """ + __slots__ = ['app', 'tags', 'tracer', '_target', '_config', '_initialized'] + + @debtcollector.removals.removed_kwarg("app_type") + def __init__(self, service, app=None, app_type=None, tags=None, tracer=None, _config=None): + tracer = tracer or ddtrace.tracer + self.app = app + self.tags = tags + self.tracer = tracer + self._target = None + # keep the configuration attribute internal because the + # public API to access it is not the Pin class + self._config = _config or {} + # [Backward compatibility]: service argument updates the `Pin` config + self._config['service_name'] = service + self._initialized = True + + @property + def service(self): + """Backward compatibility: accessing to `pin.service` returns the underlying + configuration value. + """ + return self._config['service_name'] + + def __setattr__(self, name, value): + if getattr(self, '_initialized', False) and name != '_target': + raise AttributeError("can't mutate a pin, use override() or clone() instead") + super(Pin, self).__setattr__(name, value) + + def __repr__(self): + return 'Pin(service=%s, app=%s, tags=%s, tracer=%s)' % ( + self.service, self.app, self.tags, self.tracer) + + @staticmethod + def _find(*objs): + """ + Return the first :class:`ddtrace.pin.Pin` found on any of the provided objects or `None` if none were found + + + >>> pin = Pin._find(wrapper, instance, conn, app) + + :param objs: The objects to search for a :class:`ddtrace.pin.Pin` on + :type objs: List of objects + :rtype: :class:`ddtrace.pin.Pin`, None + :returns: The first found :class:`ddtrace.pin.Pin` or `None` is none was found + """ + for obj in objs: + pin = Pin.get_from(obj) + if pin: + return pin + return None + + @staticmethod + def get_from(obj): + """Return the pin associated with the given object. If a pin is attached to + `obj` but the instance is not the owner of the pin, a new pin is cloned and + attached. This ensures that a pin inherited from a class is a copy for the new + instance, avoiding that a specific instance overrides other pins values. + + >>> pin = Pin.get_from(conn) + + :param obj: The object to look for a :class:`ddtrace.pin.Pin` on + :type obj: object + :rtype: :class:`ddtrace.pin.Pin`, None + :returns: :class:`ddtrace.pin.Pin` associated with the object, or None if none was found + """ + if hasattr(obj, '__getddpin__'): + return obj.__getddpin__() + + pin_name = _DD_PIN_PROXY_NAME if isinstance(obj, wrapt.ObjectProxy) else _DD_PIN_NAME + pin = getattr(obj, pin_name, None) + # detect if the PIN has been inherited from a class + if pin is not None and pin._target != id(obj): + pin = pin.clone() + pin.onto(obj) + return pin + + @classmethod + @debtcollector.removals.removed_kwarg("app_type") + def override(cls, obj, service=None, app=None, app_type=None, tags=None, tracer=None): + """Override an object with the given attributes. + + That's the recommended way to customize an already instrumented client, without + losing existing attributes. + + >>> conn = sqlite.connect('/tmp/user.db') + >>> # Override a pin for a specific connection + >>> Pin.override(conn, service='user-db') + """ + if not obj: + return + + pin = cls.get_from(obj) + if not pin: + pin = Pin(service) + + pin.clone( + service=service, + app=app, + tags=tags, + tracer=tracer, + ).onto(obj) + + def enabled(self): + """Return true if this pin's tracer is enabled. """ + return bool(self.tracer) and self.tracer.enabled + + def onto(self, obj, send=True): + """Patch this pin onto the given object. If send is true, it will also + queue the metadata to be sent to the server. + """ + # Actually patch it on the object. + try: + if hasattr(obj, '__setddpin__'): + return obj.__setddpin__(self) + + pin_name = _DD_PIN_PROXY_NAME if isinstance(obj, wrapt.ObjectProxy) else _DD_PIN_NAME + + # set the target reference; any get_from, clones and retarget the new PIN + self._target = id(obj) + return setattr(obj, pin_name, self) + except AttributeError: + log.debug("can't pin onto object. skipping", exc_info=True) + + def remove_from(self, obj): + # Remove pin from the object. + try: + pin_name = _DD_PIN_PROXY_NAME if isinstance(obj, wrapt.ObjectProxy) else _DD_PIN_NAME + + pin = Pin.get_from(obj) + if pin is not None: + delattr(obj, pin_name) + except AttributeError: + log.debug("can't remove pin from object. skipping", exc_info=True) + + @debtcollector.removals.removed_kwarg("app_type") + def clone(self, service=None, app=None, app_type=None, tags=None, tracer=None): + """Return a clone of the pin with the given attributes replaced.""" + # do a shallow copy of Pin dicts + if not tags and self.tags: + tags = self.tags.copy() + + # we use a copy instead of a deepcopy because we expect configurations + # to have only a root level dictionary without nested objects. Using + # deepcopy introduces a big overhead: + # + # copy: 0.00654911994934082 + # deepcopy: 0.2787208557128906 + config = self._config.copy() + + return Pin( + service=service or self.service, + app=app or self.app, + tags=tags, + tracer=tracer or self.tracer, # do not clone the Tracer + _config=config, + ) diff --git a/ddtrace/propagation/__init__.py b/ddtrace/propagation/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/ddtrace/propagation/http.py b/ddtrace/propagation/http.py new file mode 100644 index 0000000000..f766915567 --- /dev/null +++ b/ddtrace/propagation/http.py @@ -0,0 +1,147 @@ +from ..context import Context +from ..internal.logger import get_logger + +from .utils import get_wsgi_header + +log = get_logger(__name__) + +# HTTP headers one should set for distributed tracing. +# These are cross-language (eg: Python, Go and other implementations should honor these) +HTTP_HEADER_TRACE_ID = 'x-datadog-trace-id' +HTTP_HEADER_PARENT_ID = 'x-datadog-parent-id' +HTTP_HEADER_SAMPLING_PRIORITY = 'x-datadog-sampling-priority' +HTTP_HEADER_ORIGIN = 'x-datadog-origin' + + +# Note that due to WSGI spec we have to also check for uppercased and prefixed +# versions of these headers +POSSIBLE_HTTP_HEADER_TRACE_IDS = frozenset( + [HTTP_HEADER_TRACE_ID, get_wsgi_header(HTTP_HEADER_TRACE_ID)] +) +POSSIBLE_HTTP_HEADER_PARENT_IDS = frozenset( + [HTTP_HEADER_PARENT_ID, get_wsgi_header(HTTP_HEADER_PARENT_ID)] +) +POSSIBLE_HTTP_HEADER_SAMPLING_PRIORITIES = frozenset( + [HTTP_HEADER_SAMPLING_PRIORITY, get_wsgi_header(HTTP_HEADER_SAMPLING_PRIORITY)] +) +POSSIBLE_HTTP_HEADER_ORIGIN = frozenset( + [HTTP_HEADER_ORIGIN, get_wsgi_header(HTTP_HEADER_ORIGIN)] +) + + +class HTTPPropagator(object): + """A HTTP Propagator using HTTP headers as carrier.""" + + def inject(self, span_context, headers): + """Inject Context attributes that have to be propagated as HTTP headers. + + Here is an example using `requests`:: + + import requests + from ddtrace.propagation.http import HTTPPropagator + + def parent_call(): + with tracer.trace('parent_span') as span: + headers = {} + propagator = HTTPPropagator() + propagator.inject(span.context, headers) + url = '' + r = requests.get(url, headers=headers) + + :param Context span_context: Span context to propagate. + :param dict headers: HTTP headers to extend with tracing attributes. + """ + headers[HTTP_HEADER_TRACE_ID] = str(span_context.trace_id) + headers[HTTP_HEADER_PARENT_ID] = str(span_context.span_id) + sampling_priority = span_context.sampling_priority + # Propagate priority only if defined + if sampling_priority is not None: + headers[HTTP_HEADER_SAMPLING_PRIORITY] = str(span_context.sampling_priority) + # Propagate origin only if defined + if span_context._dd_origin is not None: + headers[HTTP_HEADER_ORIGIN] = str(span_context._dd_origin) + + @staticmethod + def extract_header_value(possible_header_names, headers, default=None): + for header, value in headers.items(): + for header_name in possible_header_names: + if header.lower() == header_name.lower(): + return value + + return default + + @staticmethod + def extract_trace_id(headers): + return int( + HTTPPropagator.extract_header_value( + POSSIBLE_HTTP_HEADER_TRACE_IDS, headers, default=0, + ) + ) + + @staticmethod + def extract_parent_span_id(headers): + return int( + HTTPPropagator.extract_header_value( + POSSIBLE_HTTP_HEADER_PARENT_IDS, headers, default=0, + ) + ) + + @staticmethod + def extract_sampling_priority(headers): + return HTTPPropagator.extract_header_value( + POSSIBLE_HTTP_HEADER_SAMPLING_PRIORITIES, headers, + ) + + @staticmethod + def extract_origin(headers): + return HTTPPropagator.extract_header_value( + POSSIBLE_HTTP_HEADER_ORIGIN, headers, + ) + + def extract(self, headers): + """Extract a Context from HTTP headers into a new Context. + + Here is an example from a web endpoint:: + + from ddtrace.propagation.http import HTTPPropagator + + def my_controller(url, headers): + propagator = HTTPPropagator() + context = propagator.extract(headers) + tracer.context_provider.activate(context) + + with tracer.trace('my_controller') as span: + span.set_meta('http.url', url) + + :param dict headers: HTTP headers to extract tracing attributes. + :return: New `Context` with propagated attributes. + """ + if not headers: + return Context() + + try: + trace_id = HTTPPropagator.extract_trace_id(headers) + parent_span_id = HTTPPropagator.extract_parent_span_id(headers) + sampling_priority = HTTPPropagator.extract_sampling_priority(headers) + origin = HTTPPropagator.extract_origin(headers) + + if sampling_priority is not None: + sampling_priority = int(sampling_priority) + + return Context( + trace_id=trace_id, + span_id=parent_span_id, + sampling_priority=sampling_priority, + _dd_origin=origin, + ) + # If headers are invalid and cannot be parsed, return a new context and log the issue. + except Exception: + log.debug( + 'invalid x-datadog-* headers, trace-id: %s, parent-id: %s, priority: %s, origin: %s', + headers.get(HTTP_HEADER_TRACE_ID, 0), + headers.get(HTTP_HEADER_PARENT_ID, 0), + headers.get(HTTP_HEADER_SAMPLING_PRIORITY), + headers.get(HTTP_HEADER_ORIGIN, ''), + exc_info=True, + ) + return Context() diff --git a/ddtrace/propagation/utils.py b/ddtrace/propagation/utils.py new file mode 100644 index 0000000000..1ce6d73df4 --- /dev/null +++ b/ddtrace/propagation/utils.py @@ -0,0 +1,6 @@ +def get_wsgi_header(header): + """Returns a WSGI compliant HTTP header. + See https://www.python.org/dev/peps/pep-3333/#environ-variables for + information from the spec. + """ + return 'HTTP_{}'.format(header.upper().replace('-', '_')) diff --git a/ddtrace/provider.py b/ddtrace/provider.py new file mode 100644 index 0000000000..1cc1f3b2e0 --- /dev/null +++ b/ddtrace/provider.py @@ -0,0 +1,64 @@ +import abc +from ddtrace.vendor import six + +from .internal.context_manager import DefaultContextManager + + +class BaseContextProvider(six.with_metaclass(abc.ABCMeta)): + """ + A ``ContextProvider`` is an interface that provides the blueprint + for a callable class, capable to retrieve the current active + ``Context`` instance. Context providers must inherit this class + and implement: + * the ``active`` method, that returns the current active ``Context`` + * the ``activate`` method, that sets the current active ``Context`` + """ + @abc.abstractmethod + def _has_active_context(self): + pass + + @abc.abstractmethod + def activate(self, context): + pass + + @abc.abstractmethod + def active(self): + pass + + def __call__(self, *args, **kwargs): + """Method available for backward-compatibility. It proxies the call to + ``self.active()`` and must not do anything more. + """ + return self.active() + + +class DefaultContextProvider(BaseContextProvider): + """ + Default context provider that retrieves all contexts from the current + thread-local storage. It is suitable for synchronous programming and + Python WSGI frameworks. + """ + def __init__(self, reset_context_manager=True): + self._local = DefaultContextManager(reset=reset_context_manager) + + def _has_active_context(self): + """ + Check whether we have a currently active context. + + :returns: Whether we have an active context + :rtype: bool + """ + return self._local._has_active_context() + + def activate(self, context): + """Makes the given ``context`` active, so that the provider calls + the thread-local storage implementation. + """ + return self._local.set(context) + + def active(self): + """Returns the current active ``Context`` for this tracer. Returned + ``Context`` must be thread-safe or thread-local for this specific + implementation. + """ + return self._local.get() diff --git a/ddtrace/sampler.py b/ddtrace/sampler.py new file mode 100644 index 0000000000..9b3980fbb5 --- /dev/null +++ b/ddtrace/sampler.py @@ -0,0 +1,367 @@ +"""Samplers manage the client-side trace sampling + +Any `sampled = False` trace won't be written, and can be ignored by the instrumentation. +""" +import abc + +from .compat import iteritems, pattern_type +from .constants import ENV_KEY +from .constants import SAMPLING_AGENT_DECISION, SAMPLING_RULE_DECISION, SAMPLING_LIMIT_DECISION +from .ext.priority import AUTO_KEEP, AUTO_REJECT +from .internal.logger import get_logger +from .internal.rate_limiter import RateLimiter +from .utils.formats import get_env +from .vendor import six + +log = get_logger(__name__) + +MAX_TRACE_ID = 2 ** 64 + +# Has to be the same factor and key as the Agent to allow chained sampling +KNUTH_FACTOR = 1111111111111111111 + + +class BaseSampler(six.with_metaclass(abc.ABCMeta)): + @abc.abstractmethod + def sample(self, span): + pass + + +class BasePrioritySampler(six.with_metaclass(abc.ABCMeta)): + @abc.abstractmethod + def update_rate_by_service_sample_rates(self, sample_rates): + pass + + +class AllSampler(BaseSampler): + """Sampler sampling all the traces""" + + def sample(self, span): + return True + + +class RateSampler(BaseSampler): + """Sampler based on a rate + + Keep (100 * `sample_rate`)% of the traces. + It samples randomly, its main purpose is to reduce the instrumentation footprint. + """ + + def __init__(self, sample_rate=1): + if sample_rate <= 0: + log.error('sample_rate is negative or null, disable the Sampler') + sample_rate = 1 + elif sample_rate > 1: + sample_rate = 1 + + self.set_sample_rate(sample_rate) + + log.debug('initialized RateSampler, sample %s%% of traces', 100 * sample_rate) + + def set_sample_rate(self, sample_rate): + self.sample_rate = float(sample_rate) + self.sampling_id_threshold = self.sample_rate * MAX_TRACE_ID + + def sample(self, span): + return ((span.trace_id * KNUTH_FACTOR) % MAX_TRACE_ID) <= self.sampling_id_threshold + + +class RateByServiceSampler(BaseSampler, BasePrioritySampler): + """Sampler based on a rate, by service + + Keep (100 * `sample_rate`)% of the traces. + The sample rate is kept independently for each service/env tuple. + """ + + @staticmethod + def _key(service=None, env=None): + """Compute a key with the same format used by the Datadog agent API.""" + service = service or '' + env = env or '' + return 'service:' + service + ',env:' + env + + def __init__(self, sample_rate=1): + self.sample_rate = sample_rate + self._by_service_samplers = self._get_new_by_service_sampler() + + def _get_new_by_service_sampler(self): + return { + self._default_key: RateSampler(self.sample_rate) + } + + def set_sample_rate(self, sample_rate, service='', env=''): + self._by_service_samplers[self._key(service, env)] = RateSampler(sample_rate) + + def sample(self, span): + tags = span.tracer.tags + env = tags[ENV_KEY] if ENV_KEY in tags else None + key = self._key(span.service, env) + + sampler = self._by_service_samplers.get( + key, self._by_service_samplers[self._default_key] + ) + span.set_metric(SAMPLING_AGENT_DECISION, sampler.sample_rate) + return sampler.sample(span) + + def update_rate_by_service_sample_rates(self, rate_by_service): + new_by_service_samplers = self._get_new_by_service_sampler() + for key, sample_rate in iteritems(rate_by_service): + new_by_service_samplers[key] = RateSampler(sample_rate) + + self._by_service_samplers = new_by_service_samplers + + +# Default key for service with no specific rate +RateByServiceSampler._default_key = RateByServiceSampler._key() + + +class DatadogSampler(BaseSampler, BasePrioritySampler): + """ + This sampler is currently in ALPHA and it's API may change at any time, use at your own risk. + """ + __slots__ = ('default_sampler', 'limiter', 'rules') + + NO_RATE_LIMIT = -1 + DEFAULT_RATE_LIMIT = 100 + DEFAULT_SAMPLE_RATE = None + + def __init__(self, rules=None, default_sample_rate=None, rate_limit=None): + """ + Constructor for DatadogSampler sampler + + :param rules: List of :class:`SamplingRule` rules to apply to the root span of every trace, default no rules + :type rules: :obj:`list` of :class:`SamplingRule` + :param default_sample_rate: The default sample rate to apply if no rules matched (default: ``None`` / + Use :class:`RateByServiceSampler` only) + :type default_sample_rate: float 0 <= X <= 1.0 + :param rate_limit: Global rate limit (traces per second) to apply to all traces regardless of the rules + applied to them, (default: ``100``) + :type rate_limit: :obj:`int` + """ + if default_sample_rate is None: + # If no sample rate was provided explicitly in code, try to load from environment variable + sample_rate = get_env('trace', 'sample_rate', default=self.DEFAULT_SAMPLE_RATE) + + # If no env variable was found, just use the default + if sample_rate is None: + default_sample_rate = self.DEFAULT_SAMPLE_RATE + + # Otherwise, try to convert it to a float + else: + default_sample_rate = float(sample_rate) + + if rate_limit is None: + rate_limit = int(get_env('trace', 'rate_limit', default=self.DEFAULT_RATE_LIMIT)) + + # Ensure rules is a list + if not rules: + rules = [] + + # Validate that the rules is a list of SampleRules + for rule in rules: + if not isinstance(rule, SamplingRule): + raise TypeError('Rule {!r} must be a sub-class of type ddtrace.sampler.SamplingRules'.format(rule)) + self.rules = rules + + # Configure rate limiter + self.limiter = RateLimiter(rate_limit) + + # Default to previous default behavior of RateByServiceSampler + self.default_sampler = RateByServiceSampler() + if default_sample_rate is not None: + self.default_sampler = SamplingRule(sample_rate=default_sample_rate) + + def update_rate_by_service_sample_rates(self, sample_rates): + # Pass through the call to our RateByServiceSampler + if isinstance(self.default_sampler, RateByServiceSampler): + self.default_sampler.update_rate_by_service_sample_rates(sample_rates) + + def _set_priority(self, span, priority): + if span._context: + span._context.sampling_priority = priority + span.sampled = priority is AUTO_KEEP + + def sample(self, span): + """ + Decide whether the provided span should be sampled or not + + The span provided should be the root span in the trace. + + :param span: The root span of a trace + :type span: :class:`ddtrace.span.Span` + :returns: Whether the span was sampled or not + :rtype: :obj:`bool` + """ + # If there are rules defined, then iterate through them and find one that wants to sample + matching_rule = None + # Go through all rules and grab the first one that matched + # DEV: This means rules should be ordered by the user from most specific to least specific + for rule in self.rules: + if rule.matches(span): + matching_rule = rule + break + else: + # If this is the old sampler, sample and return + if isinstance(self.default_sampler, RateByServiceSampler): + if self.default_sampler.sample(span): + self._set_priority(span, AUTO_KEEP) + return True + else: + self._set_priority(span, AUTO_REJECT) + return False + + # If no rules match, use our defualt sampler + matching_rule = self.default_sampler + + # Sample with the matching sampling rule + span.set_metric(SAMPLING_RULE_DECISION, matching_rule.sample_rate) + if not matching_rule.sample(span): + self._set_priority(span, AUTO_REJECT) + return False + else: + # Do not return here, we need to apply rate limit + self._set_priority(span, AUTO_KEEP) + + # Ensure all allowed traces adhere to the global rate limit + allowed = self.limiter.is_allowed() + # Always set the sample rate metric whether it was allowed or not + # DEV: Setting this allows us to properly compute metrics and debug the + # various sample rates that are getting applied to this span + span.set_metric(SAMPLING_LIMIT_DECISION, self.limiter.effective_rate) + if not allowed: + self._set_priority(span, AUTO_REJECT) + return False + + # We made it by all of checks, sample this trace + self._set_priority(span, AUTO_KEEP) + return True + + +class SamplingRule(BaseSampler): + """ + Definition of a sampling rule used by :class:`DatadogSampler` for applying a sample rate on a span + """ + __slots__ = ('_sample_rate', '_sampling_id_threshold', 'service', 'name') + + NO_RULE = object() + + def __init__(self, sample_rate, service=NO_RULE, name=NO_RULE): + """ + Configure a new :class:`SamplingRule` + + .. code:: python + + DatadogSampler([ + # Sample 100% of any trace + SamplingRule(sample_rate=1.0), + + # Sample no healthcheck traces + SamplingRule(sample_rate=0, name='flask.request'), + + # Sample all services ending in `-db` based on a regular expression + SamplingRule(sample_rate=0.5, service=re.compile('-db$')), + + # Sample based on service name using custom function + SamplingRule(sample_rate=0.75, service=lambda service: 'my-app' in service), + ]) + + :param sample_rate: The sample rate to apply to any matching spans + :type sample_rate: :obj:`float` greater than or equal to 0.0 and less than or equal to 1.0 + :param service: Rule to match the `span.service` on, default no rule defined + :type service: :obj:`object` to directly compare, :obj:`function` to evaluate, or :class:`re.Pattern` to match + :param name: Rule to match the `span.name` on, default no rule defined + :type name: :obj:`object` to directly compare, :obj:`function` to evaluate, or :class:`re.Pattern` to match + """ + # Enforce sample rate constraints + if not 0.0 <= sample_rate <= 1.0: + raise ValueError( + 'SamplingRule(sample_rate={!r}) must be greater than or equal to 0.0 and less than or equal to 1.0', + ) + + self.sample_rate = sample_rate + self.service = service + self.name = name + + @property + def sample_rate(self): + return self._sample_rate + + @sample_rate.setter + def sample_rate(self, sample_rate): + self._sample_rate = sample_rate + self._sampling_id_threshold = sample_rate * MAX_TRACE_ID + + def _pattern_matches(self, prop, pattern): + # If the rule is not set, then assume it matches + # DEV: Having no rule and being `None` are different things + # e.g. ignoring `span.service` vs `span.service == None` + if pattern is self.NO_RULE: + return True + + # If the pattern is callable (e.g. a function) then call it passing the prop + # The expected return value is a boolean so cast the response in case it isn't + if callable(pattern): + try: + return bool(pattern(prop)) + except Exception: + log.warning('%r pattern %r failed with %r', self, pattern, prop, exc_info=True) + # Their function failed to validate, assume it is a False + return False + + # The pattern is a regular expression and the prop is a string + if isinstance(pattern, pattern_type): + try: + return bool(pattern.match(str(prop))) + except (ValueError, TypeError): + # This is to guard us against the casting to a string (shouldn't happen, but still) + log.warning('%r pattern %r failed with %r', self, pattern, prop, exc_info=True) + return False + + # Exact match on the values + return prop == pattern + + def matches(self, span): + """ + Return if this span matches this rule + + :param span: The span to match against + :type span: :class:`ddtrace.span.Span` + :returns: Whether this span matches or not + :rtype: :obj:`bool` + """ + return all( + self._pattern_matches(prop, pattern) + for prop, pattern in [ + (span.service, self.service), + (span.name, self.name), + ] + ) + + def sample(self, span): + """ + Return if this rule chooses to sample the span + + :param span: The span to sample against + :type span: :class:`ddtrace.span.Span` + :returns: Whether this span was sampled + :rtype: :obj:`bool` + """ + if self.sample_rate == 1: + return True + elif self.sample_rate == 0: + return False + + return ((span.trace_id * KNUTH_FACTOR) % MAX_TRACE_ID) <= self._sampling_id_threshold + + def _no_rule_or_self(self, val): + return 'NO_RULE' if val is self.NO_RULE else val + + def __repr__(self): + return '{}(sample_rate={!r}, service={!r}, name={!r})'.format( + self.__class__.__name__, + self.sample_rate, + self._no_rule_or_self(self.service), + self._no_rule_or_self(self.name), + ) + + __str__ = __repr__ diff --git a/ddtrace/settings/__init__.py b/ddtrace/settings/__init__.py new file mode 100644 index 0000000000..2fe82efd32 --- /dev/null +++ b/ddtrace/settings/__init__.py @@ -0,0 +1,17 @@ +from .config import Config +from .exceptions import ConfigException +from .http import HttpConfig +from .hooks import Hooks +from .integration import IntegrationConfig + +# Default global config +config = Config() + +__all__ = [ + 'config', + 'Config', + 'ConfigException', + 'HttpConfig', + 'Hooks', + 'IntegrationConfig', +] diff --git a/ddtrace/settings/config.py b/ddtrace/settings/config.py new file mode 100644 index 0000000000..67b14aa76a --- /dev/null +++ b/ddtrace/settings/config.py @@ -0,0 +1,112 @@ +from copy import deepcopy + +from ..internal.logger import get_logger +from ..pin import Pin +from ..utils.formats import asbool +from ..utils.merge import deepmerge +from .http import HttpConfig +from .integration import IntegrationConfig +from ..utils.formats import get_env + +log = get_logger(__name__) + + +class Config(object): + """Configuration object that exposes an API to set and retrieve + global settings for each integration. All integrations must use + this instance to register their defaults, so that they're public + available and can be updated by users. + """ + def __init__(self): + # use a dict as underlying storing mechanism + self._config = {} + self._http = HttpConfig() + # Master switch for turning on and off trace search by default + # this weird invocation of get_env is meant to read the DD_ANALYTICS_ENABLED + # legacy environment variable. It should be removed in the future + legacy_config_value = get_env('analytics', 'enabled', default=False) + + self.analytics_enabled = asbool( + get_env('trace', 'analytics_enabled', default=legacy_config_value) + ) + + self.report_hostname = asbool( + get_env('trace', 'report_hostname', default=False) + ) + + self.health_metrics_enabled = asbool( + get_env('trace', 'health_metrics_enabled', default=False) + ) + + def __getattr__(self, name): + if name not in self._config: + self._config[name] = IntegrationConfig(self, name) + + return self._config[name] + + def get_from(self, obj): + """Retrieves the configuration for the given object. + Any object that has an attached `Pin` must have a configuration + and if a wrong object is given, an empty `dict` is returned + for safety reasons. + """ + pin = Pin.get_from(obj) + if pin is None: + log.debug('No configuration found for %s', obj) + return {} + + return pin._config + + def _add(self, integration, settings, merge=True): + """Internal API that registers an integration with given default + settings. + + :param str integration: The integration name (i.e. `requests`) + :param dict settings: A dictionary that contains integration settings; + to preserve immutability of these values, the dictionary is copied + since it contains integration defaults. + :param bool merge: Whether to merge any existing settings with those provided, + or if we should overwrite the settings with those provided; + Note: when merging existing settings take precedence. + """ + # DEV: Use `getattr()` to call our `__getattr__` helper + existing = getattr(self, integration) + settings = deepcopy(settings) + + if merge: + # DEV: This may appear backwards keeping `existing` as the "source" and `settings` as + # the "destination", but we do not want to let `_add(..., merge=True)` overwrite any + # existing settings + # + # >>> config.requests['split_by_domain'] = True + # >>> config._add('requests', dict(split_by_domain=False)) + # >>> config.requests['split_by_domain'] + # True + self._config[integration] = IntegrationConfig(self, integration, deepmerge(existing, settings)) + else: + self._config[integration] = IntegrationConfig(self, integration, settings) + + def trace_headers(self, whitelist): + """ + Registers a set of headers to be traced at global level or integration level. + :param whitelist: the case-insensitive list of traced headers + :type whitelist: list of str or str + :return: self + :rtype: HttpConfig + """ + self._http.trace_headers(whitelist) + return self + + def header_is_traced(self, header_name): + """ + Returns whether or not the current header should be traced. + :param header_name: the header name + :type header_name: str + :rtype: bool + """ + return self._http.header_is_traced(header_name) + + def __repr__(self): + cls = self.__class__ + integrations = ', '.join(self._config.keys()) + return '{}.{}({})'.format(cls.__module__, cls.__name__, integrations) diff --git a/ddtrace/settings/exceptions.py b/ddtrace/settings/exceptions.py new file mode 100644 index 0000000000..4fd725c7e3 --- /dev/null +++ b/ddtrace/settings/exceptions.py @@ -0,0 +1,5 @@ +class ConfigException(Exception): + """Configuration exception when an integration that is not available + is called in the `Config` object. + """ + pass diff --git a/ddtrace/settings/hooks.py b/ddtrace/settings/hooks.py new file mode 100644 index 0000000000..6713684dd3 --- /dev/null +++ b/ddtrace/settings/hooks.py @@ -0,0 +1,122 @@ +import collections +from copy import deepcopy + +from ..internal.logger import get_logger +from ..span import Span + +log = get_logger(__name__) + + +class Hooks(object): + """ + Hooks configuration object is used for registering and calling hook functions + + Example:: + + @config.falcon.hooks.on('request') + def on_request(span, request, response): + pass + """ + __slots__ = ['_hooks'] + + def __init__(self): + self._hooks = collections.defaultdict(set) + + def __deepcopy__(self, memodict=None): + hooks = Hooks() + hooks._hooks = deepcopy(self._hooks) + return hooks + + def register(self, hook, func=None): + """ + Function used to register a hook for the provided name. + + Example:: + + def on_request(span, request, response): + pass + + config.falcon.hooks.register('request', on_request) + + + If no function is provided then a decorator is returned:: + + @config.falcon.hooks.register('request') + def on_request(span, request, response): + pass + + :param hook: The name of the hook to register the function for + :type hook: str + :param func: The function to register, or ``None`` if a decorator should be returned + :type func: function, None + :returns: Either a function decorator if ``func is None``, otherwise ``None`` + :rtype: function, None + """ + # If they didn't provide a function, then return a decorator + if not func: + def wrapper(func): + self.register(hook, func) + return func + return wrapper + self._hooks[hook].add(func) + + # Provide shorthand `on` method for `register` + # >>> @config.falcon.hooks.on('request') + # def on_request(span, request, response): + # pass + on = register + + def deregister(self, func): + """ + Function to deregister a function from all hooks it was registered under + + Example:: + + @config.falcon.hooks.on('request') + def on_request(span, request, response): + pass + + config.falcon.hooks.deregister(on_request) + + + :param func: Function hook to register + :type func: function + """ + for funcs in self._hooks.values(): + if func in funcs: + funcs.remove(func) + + def _emit(self, hook, span, *args, **kwargs): + """ + Function used to call registered hook functions. + + :param hook: The hook to call functions for + :type hook: str + :param span: The span to call the hook with + :type span: :class:`ddtrace.span.Span` + :param args: Positional arguments to pass to the hook functions + :type args: list + :param kwargs: Keyword arguments to pass to the hook functions + :type kwargs: dict + """ + # Return early if no hooks are registered + if hook not in self._hooks: + return + + # Return early if we don't have a Span + if not isinstance(span, Span): + return + + # Call registered hooks + for func in self._hooks[hook]: + try: + func(span, *args, **kwargs) + except Exception: + # DEV: Use log.debug instead of log.error until we have a throttled logger + log.debug('Failed to run hook %s function %s', hook, func, exc_info=True) + + def __repr__(self): + """Return string representation of this class instance""" + cls = self.__class__ + hooks = ','.join(self._hooks.keys()) + return '{}.{}({})'.format(cls.__module__, cls.__name__, hooks) diff --git a/ddtrace/settings/http.py b/ddtrace/settings/http.py new file mode 100644 index 0000000000..ccce2c3739 --- /dev/null +++ b/ddtrace/settings/http.py @@ -0,0 +1,54 @@ +from ..internal.logger import get_logger +from ..utils.http import normalize_header_name + +log = get_logger(__name__) + + +class HttpConfig(object): + """ + Configuration object that expose an API to set and retrieve both global and integration specific settings + related to the http context. + """ + + def __init__(self): + self._whitelist_headers = set() + self.trace_query_string = None + + @property + def is_header_tracing_configured(self): + return len(self._whitelist_headers) > 0 + + def trace_headers(self, whitelist): + """ + Registers a set of headers to be traced at global level or integration level. + :param whitelist: the case-insensitive list of traced headers + :type whitelist: list of str or str + :return: self + :rtype: HttpConfig + """ + if not whitelist: + return + + whitelist = [whitelist] if isinstance(whitelist, str) else whitelist + for whitelist_entry in whitelist: + normalized_header_name = normalize_header_name(whitelist_entry) + if not normalized_header_name: + continue + self._whitelist_headers.add(normalized_header_name) + + return self + + def header_is_traced(self, header_name): + """ + Returns whether or not the current header should be traced. + :param header_name: the header name + :type header_name: str + :rtype: bool + """ + normalized_header_name = normalize_header_name(header_name) + log.debug('Checking header \'%s\' tracing in whitelist %s', normalized_header_name, self._whitelist_headers) + return normalized_header_name in self._whitelist_headers + + def __repr__(self): + return '<{} traced_headers={} trace_query_string={}>'.format( + self.__class__.__name__, self._whitelist_headers, self.trace_query_string) diff --git a/ddtrace/settings/integration.py b/ddtrace/settings/integration.py new file mode 100644 index 0000000000..3d8b2288e8 --- /dev/null +++ b/ddtrace/settings/integration.py @@ -0,0 +1,103 @@ +from copy import deepcopy + +from ..utils.attrdict import AttrDict +from ..utils.formats import asbool, get_env +from .http import HttpConfig +from .hooks import Hooks + + +class IntegrationConfig(AttrDict): + """ + Integration specific configuration object. + + This is what you will get when you do:: + + from ddtrace import config + + # This is an `IntegrationConfig` + config.flask + + # `IntegrationConfig` supports both attribute and item accessors + config.flask['service_name'] = 'my-service-name' + config.flask.service_name = 'my-service-name' + """ + def __init__(self, global_config, name, *args, **kwargs): + """ + :param global_config: + :type global_config: Config + :param args: + :param kwargs: + """ + super(IntegrationConfig, self).__init__(*args, **kwargs) + + # Set internal properties for this `IntegrationConfig` + # DEV: By-pass the `__setattr__` overrides from `AttrDict` to set real properties + object.__setattr__(self, 'global_config', global_config) + object.__setattr__(self, 'integration_name', name) + object.__setattr__(self, 'hooks', Hooks()) + object.__setattr__(self, 'http', HttpConfig()) + + # Set default analytics configuration, default is disabled + # DEV: Default to `None` which means do not set this key + # Inject environment variables for integration + analytics_enabled_env = get_env(name, 'analytics_enabled') + if analytics_enabled_env is not None: + analytics_enabled_env = asbool(analytics_enabled_env) + self.setdefault('analytics_enabled', analytics_enabled_env) + self.setdefault('analytics_sample_rate', float(get_env(name, 'analytics_sample_rate', 1.0))) + + def __deepcopy__(self, memodict=None): + new = IntegrationConfig(self.global_config, deepcopy(dict(self))) + new.hooks = deepcopy(self.hooks) + new.http = deepcopy(self.http) + return new + + @property + def trace_query_string(self): + if self.http.trace_query_string is not None: + return self.http.trace_query_string + return self.global_config._http.trace_query_string + + def header_is_traced(self, header_name): + """ + Returns whether or not the current header should be traced. + :param header_name: the header name + :type header_name: str + :rtype: bool + """ + return ( + self.http.header_is_traced(header_name) + if self.http.is_header_tracing_configured + else self.global_config.header_is_traced(header_name) + ) + + def _is_analytics_enabled(self, use_global_config): + # DEV: analytics flag can be None which should not be taken as + # enabled when global flag is disabled + if use_global_config and self.global_config.analytics_enabled: + return self.analytics_enabled is not False + else: + return self.analytics_enabled is True + + def get_analytics_sample_rate(self, use_global_config=False): + """ + Returns analytics sample rate but only when integration-specific + analytics configuration is enabled with optional override with global + configuration + """ + if self._is_analytics_enabled(use_global_config): + analytics_sample_rate = getattr(self, 'analytics_sample_rate', None) + # return True if attribute is None or attribute not found + if analytics_sample_rate is None: + return True + # otherwise return rate + return analytics_sample_rate + + # Use `None` as a way to say that it was not defined, + # `False` would mean `0` which is a different thing + return None + + def __repr__(self): + cls = self.__class__ + keys = ', '.join(self.keys()) + return '{}.{}({})'.format(cls.__module__, cls.__name__, keys) diff --git a/ddtrace/span.py b/ddtrace/span.py new file mode 100644 index 0000000000..9c9c2e1fb1 --- /dev/null +++ b/ddtrace/span.py @@ -0,0 +1,394 @@ +import math +import random +import sys +import traceback + +from .compat import StringIO, stringify, iteritems, numeric_types, time_ns, is_integer +from .constants import NUMERIC_TAGS, MANUAL_DROP_KEY, MANUAL_KEEP_KEY +from .ext import SpanTypes, errors, priority, net, http +from .internal.logger import get_logger + + +log = get_logger(__name__) + + +if sys.version_info.major < 3: + _getrandbits = random.SystemRandom().getrandbits +else: + _getrandbits = random.getrandbits + + +class Span(object): + + __slots__ = [ + # Public span attributes + 'service', + 'name', + 'resource', + 'span_id', + 'trace_id', + 'parent_id', + 'meta', + 'error', + 'metrics', + 'span_type', + 'start_ns', + 'duration_ns', + 'tracer', + # Sampler attributes + 'sampled', + # Internal attributes + '_context', + 'finished', + '_parent', + '__weakref__', + ] + + def __init__( + self, + tracer, + name, + + service=None, + resource=None, + span_type=None, + trace_id=None, + span_id=None, + parent_id=None, + start=None, + context=None, + ): + """ + Create a new span. Call `finish` once the traced operation is over. + + :param ddtrace.Tracer tracer: the tracer that will submit this span when + finished. + :param str name: the name of the traced operation. + + :param str service: the service name + :param str resource: the resource name + :param str span_type: the span type + + :param int trace_id: the id of this trace's root span. + :param int parent_id: the id of this span's direct parent span. + :param int span_id: the id of this span. + + :param int start: the start time of request as a unix epoch in seconds + :param object context: the Context of the span. + """ + # required span info + self.name = name + self.service = service + self.resource = resource or name + self.span_type = span_type.value if isinstance(span_type, SpanTypes) else span_type + + # tags / metatdata + self.meta = {} + self.error = 0 + self.metrics = {} + + # timing + self.start_ns = time_ns() if start is None else int(start * 1e9) + self.duration_ns = None + + # tracing + self.trace_id = trace_id or _new_id() + self.span_id = span_id or _new_id() + self.parent_id = parent_id + self.tracer = tracer + + # sampling + self.sampled = True + + self._context = context + self._parent = None + + # state + self.finished = False + + @property + def start(self): + """The start timestamp in Unix epoch seconds.""" + return self.start_ns / 1e9 + + @start.setter + def start(self, value): + self.start_ns = int(value * 1e9) + + @property + def duration(self): + """The span duration in seconds.""" + if self.duration_ns is not None: + return self.duration_ns / 1e9 + + @duration.setter + def duration(self, value): + self.duration_ns = value * 1e9 + + def finish(self, finish_time=None): + """Mark the end time of the span and submit it to the tracer. + If the span has already been finished don't do anything + + :param int finish_time: The end time of the span in seconds. + Defaults to now. + """ + if self.finished: + return + self.finished = True + + if self.duration_ns is None: + ft = time_ns() if finish_time is None else int(finish_time * 1e9) + # be defensive so we don't die if start isn't set + self.duration_ns = ft - (self.start_ns or ft) + + if self._context: + try: + self._context.close_span(self) + except Exception: + log.exception('error recording finished trace') + else: + # if a tracer is available to process the current context + if self.tracer: + try: + self.tracer.record(self._context) + except Exception: + log.exception('error recording finished trace') + + def set_tag(self, key, value=None): + """ Set the given key / value tag pair on the span. Keys and values + must be strings (or stringable). If a casting error occurs, it will + be ignored. + """ + # Special case, force `http.status_code` as a string + # DEV: `http.status_code` *has* to be in `meta` for metrics + # calculated in the trace agent + if key == http.STATUS_CODE: + value = str(value) + + # Determine once up front + is_an_int = is_integer(value) + + # Explicitly try to convert expected integers to `int` + # DEV: Some integrations parse these values from strings, but don't call `int(value)` themselves + INT_TYPES = (net.TARGET_PORT, ) + if key in INT_TYPES and not is_an_int: + try: + value = int(value) + is_an_int = True + except (ValueError, TypeError): + pass + + # Set integers that are less than equal to 2^53 as metrics + if is_an_int and abs(value) <= 2 ** 53: + self.set_metric(key, value) + return + + # All floats should be set as a metric + elif isinstance(value, float): + self.set_metric(key, value) + return + + # Key should explicitly be converted to a float if needed + elif key in NUMERIC_TAGS: + try: + # DEV: `set_metric` will try to cast to `float()` for us + self.set_metric(key, value) + except (TypeError, ValueError): + log.debug('error setting numeric metric %s:%s', key, value) + + return + + elif key == MANUAL_KEEP_KEY: + self.context.sampling_priority = priority.USER_KEEP + return + elif key == MANUAL_DROP_KEY: + self.context.sampling_priority = priority.USER_REJECT + return + + try: + self.meta[key] = stringify(value) + if key in self.metrics: + del self.metrics[key] + except Exception: + log.debug('error setting tag %s, ignoring it', key, exc_info=True) + + def _remove_tag(self, key): + if key in self.meta: + del self.meta[key] + + def get_tag(self, key): + """ Return the given tag or None if it doesn't exist. + """ + return self.meta.get(key, None) + + def set_tags(self, tags): + """ Set a dictionary of tags on the given span. Keys and values + must be strings (or stringable) + """ + if tags: + for k, v in iter(tags.items()): + self.set_tag(k, v) + + def set_meta(self, k, v): + self.set_tag(k, v) + + def set_metas(self, kvs): + self.set_tags(kvs) + + def set_metric(self, key, value): + # This method sets a numeric tag value for the given key. It acts + # like `set_meta()` and it simply add a tag without further processing. + + # FIXME[matt] we could push this check to serialization time as well. + # only permit types that are commonly serializable (don't use + # isinstance so that we convert unserializable types like numpy + # numbers) + if type(value) not in numeric_types: + try: + value = float(value) + except (ValueError, TypeError): + log.debug('ignoring not number metric %s:%s', key, value) + return + + # don't allow nan or inf + if math.isnan(value) or math.isinf(value): + log.debug('ignoring not real metric %s:%s', key, value) + return + + if key in self.meta: + del self.meta[key] + self.metrics[key] = value + + def set_metrics(self, metrics): + if metrics: + for k, v in iteritems(metrics): + self.set_metric(k, v) + + def get_metric(self, key): + return self.metrics.get(key) + + def to_dict(self): + d = { + 'trace_id': self.trace_id, + 'parent_id': self.parent_id, + 'span_id': self.span_id, + 'service': self.service, + 'resource': self.resource, + 'name': self.name, + 'error': self.error, + } + + # a common mistake is to set the error field to a boolean instead of an + # int. let's special case that here, because it's sure to happen in + # customer code. + err = d.get('error') + if err and type(err) == bool: + d['error'] = 1 + + if self.start_ns: + d['start'] = self.start_ns + + if self.duration_ns: + d['duration'] = self.duration_ns + + if self.meta: + d['meta'] = self.meta + + if self.metrics: + d['metrics'] = self.metrics + + if self.span_type: + d['type'] = self.span_type + + return d + + def set_traceback(self, limit=20): + """ If the current stack has an exception, tag the span with the + relevant error info. If not, set the span to the current python stack. + """ + (exc_type, exc_val, exc_tb) = sys.exc_info() + + if (exc_type and exc_val and exc_tb): + self.set_exc_info(exc_type, exc_val, exc_tb) + else: + tb = ''.join(traceback.format_stack(limit=limit + 1)[:-1]) + self.set_tag(errors.ERROR_STACK, tb) # FIXME[gabin] Want to replace 'error.stack' tag with 'python.stack' + + def set_exc_info(self, exc_type, exc_val, exc_tb): + """ Tag the span with an error tuple as from `sys.exc_info()`. """ + if not (exc_type and exc_val and exc_tb): + return # nothing to do + + self.error = 1 + + # get the traceback + buff = StringIO() + traceback.print_exception(exc_type, exc_val, exc_tb, file=buff, limit=20) + tb = buff.getvalue() + + # readable version of type (e.g. exceptions.ZeroDivisionError) + exc_type_str = '%s.%s' % (exc_type.__module__, exc_type.__name__) + + self.set_tag(errors.ERROR_MSG, exc_val) + self.set_tag(errors.ERROR_TYPE, exc_type_str) + self.set_tag(errors.ERROR_STACK, tb) + + def _remove_exc_info(self): + """ Remove all exception related information from the span. """ + self.error = 0 + self._remove_tag(errors.ERROR_MSG) + self._remove_tag(errors.ERROR_TYPE) + self._remove_tag(errors.ERROR_STACK) + + def pprint(self): + """ Return a human readable version of the span. """ + lines = [ + ('name', self.name), + ('id', self.span_id), + ('trace_id', self.trace_id), + ('parent_id', self.parent_id), + ('service', self.service), + ('resource', self.resource), + ('type', self.span_type), + ('start', self.start), + ('end', '' if not self.duration else self.start + self.duration), + ('duration', '%fs' % (self.duration or 0)), + ('error', self.error), + ('tags', '') + ] + + lines.extend((' ', '%s:%s' % kv) for kv in sorted(self.meta.items())) + return '\n'.join('%10s %s' % l for l in lines) + + @property + def context(self): + """ + Property that provides access to the ``Context`` associated with this ``Span``. + The ``Context`` contains state that propagates from span to span in a + larger trace. + """ + return self._context + + def __enter__(self): + return self + + def __exit__(self, exc_type, exc_val, exc_tb): + try: + if exc_type: + self.set_exc_info(exc_type, exc_val, exc_tb) + self.finish() + except Exception: + log.exception('error closing trace') + + def __repr__(self): + return '' % ( + self.span_id, + self.trace_id, + self.parent_id, + self.name, + ) + + +def _new_id(): + """Generate a random trace_id or span_id""" + return _getrandbits(64) diff --git a/ddtrace/tracer.py b/ddtrace/tracer.py new file mode 100644 index 0000000000..112eafe92d --- /dev/null +++ b/ddtrace/tracer.py @@ -0,0 +1,638 @@ +import functools +import logging +from os import environ, getpid + +from ddtrace.vendor import debtcollector + +from .constants import FILTERS_KEY, SAMPLE_RATE_METRIC_KEY +from .ext import system +from .ext.priority import AUTO_REJECT, AUTO_KEEP +from .internal.logger import get_logger +from .internal.runtime import RuntimeTags, RuntimeWorker +from .internal.writer import AgentWriter +from .provider import DefaultContextProvider +from .context import Context +from .sampler import DatadogSampler, RateSampler, RateByServiceSampler +from .span import Span +from .utils.formats import get_env +from .utils.deprecation import deprecated, RemovedInDDTrace10Warning +from .vendor.dogstatsd import DogStatsd +from . import compat + + +log = get_logger(__name__) + + +def _parse_dogstatsd_url(url): + if url is None: + return + + # url can be either of the form `udp://:` or `unix://` + # also support without url scheme included + if url.startswith('/'): + url = 'unix://' + url + elif '://' not in url: + url = 'udp://' + url + + parsed = compat.parse.urlparse(url) + + if parsed.scheme == 'unix': + return dict(socket_path=parsed.path) + elif parsed.scheme == 'udp': + return dict(host=parsed.hostname, port=parsed.port) + else: + raise ValueError('Unknown scheme `%s` for DogStatsD URL `{}`'.format(parsed.scheme)) + + +_INTERNAL_APPLICATION_SPAN_TYPES = [ + "custom", + "template", + "web", + "worker" +] + + +class Tracer(object): + """ + Tracer is used to create, sample and submit spans that measure the + execution time of sections of code. + + If you're running an application that will serve a single trace per thread, + you can use the global tracer instance:: + + from ddtrace import tracer + trace = tracer.trace('app.request', 'web-server').finish() + """ + _RUNTIME_METRICS_INTERVAL = 10 + + DEFAULT_HOSTNAME = environ.get('DD_AGENT_HOST', environ.get('DATADOG_TRACE_AGENT_HOSTNAME', 'localhost')) + DEFAULT_PORT = int(environ.get('DD_TRACE_AGENT_PORT', 8126)) + DEFAULT_DOGSTATSD_PORT = int(get_env('dogstatsd', 'port', 8125)) + DEFAULT_DOGSTATSD_URL = get_env('dogstatsd', 'url', 'udp://{}:{}'.format(DEFAULT_HOSTNAME, DEFAULT_DOGSTATSD_PORT)) + DEFAULT_AGENT_URL = environ.get('DD_TRACE_AGENT_URL', 'http://%s:%d' % (DEFAULT_HOSTNAME, DEFAULT_PORT)) + + def __init__(self, url=DEFAULT_AGENT_URL, dogstatsd_url=DEFAULT_DOGSTATSD_URL): + """ + Create a new ``Tracer`` instance. A global tracer is already initialized + for common usage, so there is no need to initialize your own ``Tracer``. + + :param url: The Datadog agent URL. + :param url: The DogStatsD URL. + """ + self.log = log + self.sampler = None + self.priority_sampler = None + self._runtime_worker = None + + uds_path = None + https = None + hostname = self.DEFAULT_HOSTNAME + port = self.DEFAULT_PORT + if url is not None: + url_parsed = compat.parse.urlparse(url) + if url_parsed.scheme in ('http', 'https'): + hostname = url_parsed.hostname + port = url_parsed.port + https = url_parsed.scheme == 'https' + # FIXME This is needed because of the way of configure() works right now, where it considers `port=None` + # to be "no port set so let's use the default". + # It should go away when we remove configure() + if port is None: + if https: + port = 443 + else: + port = 80 + elif url_parsed.scheme == 'unix': + uds_path = url_parsed.path + else: + raise ValueError('Unknown scheme `%s` for agent URL' % url_parsed.scheme) + + # Apply the default configuration + self.configure( + enabled=True, + hostname=hostname, + port=port, + https=https, + uds_path=uds_path, + sampler=DatadogSampler(), + context_provider=DefaultContextProvider(), + dogstatsd_url=dogstatsd_url, + ) + + # globally set tags + self.tags = {} + + # a buffer for service info so we don't perpetually send the same things + self._services = set() + + # Runtime id used for associating data collected during runtime to + # traces + self._pid = getpid() + + @property + def debug_logging(self): + return self.log.isEnabledFor(logging.DEBUG) + + @debug_logging.setter + @deprecated(message='Use logging.setLevel instead', version='1.0.0') + def debug_logging(self, value): + self.log.setLevel(logging.DEBUG if value else logging.WARN) + + @deprecated('Use .tracer, not .tracer()', '1.0.0') + def __call__(self): + return self + + def global_excepthook(self, tp, value, traceback): + """The global tracer except hook.""" + self._dogstatsd_client.increment('datadog.tracer.uncaught_exceptions', 1, + tags=['class:%s' % tp.__name__]) + + def get_call_context(self, *args, **kwargs): + """ + Return the current active ``Context`` for this traced execution. This method is + automatically called in the ``tracer.trace()``, but it can be used in the application + code during manual instrumentation like:: + + from ddtrace import tracer + + async def web_handler(request): + context = tracer.get_call_context() + # use the context if needed + # ... + + This method makes use of a ``ContextProvider`` that is automatically set during the tracer + initialization, or while using a library instrumentation. + """ + return self._context_provider.active(*args, **kwargs) + + @property + def context_provider(self): + """Returns the current Tracer Context Provider""" + return self._context_provider + + # TODO: deprecate this method and make sure users create a new tracer if they need different parameters + @debtcollector.removals.removed_kwarg("dogstatsd_host", "Use `dogstatsd_url` instead", + category=RemovedInDDTrace10Warning) + @debtcollector.removals.removed_kwarg("dogstatsd_port", "Use `dogstatsd_url` instead", + category=RemovedInDDTrace10Warning) + def configure(self, enabled=None, hostname=None, port=None, uds_path=None, https=None, + sampler=None, context_provider=None, wrap_executor=None, priority_sampling=None, + settings=None, collect_metrics=None, dogstatsd_host=None, dogstatsd_port=None, + dogstatsd_url=None): + """ + Configure an existing Tracer the easy way. + Allow to configure or reconfigure a Tracer instance. + + :param bool enabled: If True, finished traces will be submitted to the API. + Otherwise they'll be dropped. + :param str hostname: Hostname running the Trace Agent + :param int port: Port of the Trace Agent + :param str uds_path: The Unix Domain Socket path of the agent. + :param bool https: Whether to use HTTPS or HTTP. + :param object sampler: A custom Sampler instance, locally deciding to totally drop the trace or not. + :param object context_provider: The ``ContextProvider`` that will be used to retrieve + automatically the current call context. This is an advanced option that usually + doesn't need to be changed from the default value + :param object wrap_executor: callable that is used when a function is decorated with + ``Tracer.wrap()``. This is an advanced option that usually doesn't need to be changed + from the default value + :param priority_sampling: enable priority sampling, this is required for + complete distributed tracing support. Enabled by default. + :param collect_metrics: Whether to enable runtime metrics collection. + :param str dogstatsd_host: Host for UDP connection to DogStatsD (deprecated: use dogstatsd_url) + :param int dogstatsd_port: Port for UDP connection to DogStatsD (deprecated: use dogstatsd_url) + :param str dogstatsd_url: URL for UDP or Unix socket connection to DogStatsD + """ + if enabled is not None: + self.enabled = enabled + + filters = None + if settings is not None: + filters = settings.get(FILTERS_KEY) + + # If priority sampling is not set or is True and no priority sampler is set yet + if priority_sampling in (None, True) and not self.priority_sampler: + self.priority_sampler = RateByServiceSampler() + # Explicitly disable priority sampling + elif priority_sampling is False: + self.priority_sampler = None + + if sampler is not None: + self.sampler = sampler + + if dogstatsd_host is not None and dogstatsd_url is None: + dogstatsd_url = 'udp://{}:{}'.format(dogstatsd_host, dogstatsd_port or self.DEFAULT_DOGSTATSD_PORT) + + if dogstatsd_url is not None: + dogstatsd_kwargs = _parse_dogstatsd_url(dogstatsd_url) + self.log.debug('Connecting to DogStatsd(%s)', dogstatsd_url) + self._dogstatsd_client = DogStatsd(**dogstatsd_kwargs) + + if hostname is not None or port is not None or uds_path is not None or https is not None or \ + filters is not None or priority_sampling is not None or sampler is not None: + # Preserve hostname and port when overriding filters or priority sampling + # This is clumsy and a good reason to get rid of this configure() API + if hasattr(self, 'writer') and hasattr(self.writer, 'api'): + default_hostname = self.writer.api.hostname + default_port = self.writer.api.port + if https is None: + https = self.writer.api.https + else: + default_hostname = self.DEFAULT_HOSTNAME + default_port = self.DEFAULT_PORT + + self.writer = AgentWriter( + hostname or default_hostname, + port or default_port, + uds_path=uds_path, + https=https, + filters=filters, + sampler=self.sampler, + priority_sampler=self.priority_sampler, + dogstatsd=self._dogstatsd_client, + ) + + # HACK: since we recreated our dogstatsd agent, replace the old write one + self.writer.dogstatsd = self._dogstatsd_client + + if context_provider is not None: + self._context_provider = context_provider + + if wrap_executor is not None: + self._wrap_executor = wrap_executor + + # Since we've recreated our dogstatsd agent, we need to restart metric collection with that new agent + if self._runtime_worker: + runtime_metrics_was_running = True + self._runtime_worker.stop() + self._runtime_worker.join() + self._runtime_worker = None + else: + runtime_metrics_was_running = False + + if (collect_metrics is None and runtime_metrics_was_running) or collect_metrics: + self._start_runtime_worker() + + def start_span(self, name, child_of=None, service=None, resource=None, span_type=None): + """ + Return a span that will trace an operation called `name`. This method allows + parenting using the ``child_of`` kwarg. If it's missing, the newly created span is a + root span. + + :param str name: the name of the operation being traced. + :param object child_of: a ``Span`` or a ``Context`` instance representing the parent for this span. + :param str service: the name of the service being traced. + :param str resource: an optional name of the resource being tracked. + :param str span_type: an optional operation type. + + To start a new root span, simply:: + + span = tracer.start_span('web.request') + + If you want to create a child for a root span, just:: + + root_span = tracer.start_span('web.request') + span = tracer.start_span('web.decoder', child_of=root_span) + + Or if you have a ``Context`` object:: + + context = tracer.get_call_context() + span = tracer.start_span('web.worker', child_of=context) + """ + if child_of is not None: + # retrieve if the span is a child_of a Span or a of Context + child_of_context = isinstance(child_of, Context) + context = child_of if child_of_context else child_of.context + parent = child_of.get_current_span() if child_of_context else child_of + else: + context = Context() + parent = None + + if parent: + trace_id = parent.trace_id + parent_span_id = parent.span_id + else: + trace_id = context.trace_id + parent_span_id = context.span_id + + if trace_id: + # child_of a non-empty context, so either a local child span or from a remote context + + # when not provided, inherit from parent's service + if parent: + service = service or parent.service + + span = Span( + self, + name, + trace_id=trace_id, + parent_id=parent_span_id, + service=service, + resource=resource, + span_type=span_type, + ) + + # Extra attributes when from a local parent + if parent: + span.sampled = parent.sampled + span._parent = parent + + else: + # this is the root span of a new trace + span = Span( + self, + name, + service=service, + resource=resource, + span_type=span_type, + ) + + span.sampled = self.sampler.sample(span) + # Old behavior + # DEV: The new sampler sets metrics and priority sampling on the span for us + if not isinstance(self.sampler, DatadogSampler): + if span.sampled: + # When doing client sampling in the client, keep the sample rate so that we can + # scale up statistics in the next steps of the pipeline. + if isinstance(self.sampler, RateSampler): + span.set_metric(SAMPLE_RATE_METRIC_KEY, self.sampler.sample_rate) + + if self.priority_sampler: + # At this stage, it's important to have the service set. If unset, + # priority sampler will use the default sampling rate, which might + # lead to oversampling (that is, dropping too many traces). + if self.priority_sampler.sample(span): + context.sampling_priority = AUTO_KEEP + else: + context.sampling_priority = AUTO_REJECT + else: + if self.priority_sampler: + # If dropped by the local sampler, distributed instrumentation can drop it too. + context.sampling_priority = AUTO_REJECT + else: + context.sampling_priority = AUTO_KEEP if span.sampled else AUTO_REJECT + # We must always mark the span as sampled so it is forwarded to the agent + span.sampled = True + + # add tags to root span to correlate trace with runtime metrics + # only applied to spans with types that are internal to applications + if self._runtime_worker and span.span_type in _INTERNAL_APPLICATION_SPAN_TYPES: + span.set_tag('language', 'python') + + # add common tags + if self.tags: + span.set_tags(self.tags) + if not span._parent: + span.set_tag(system.PID, getpid()) + + # add it to the current context + context.add_span(span) + + # check for new process if runtime metrics worker has already been started + self._check_new_process() + + # update set of services handled by tracer + if service and service not in self._services: + self._services.add(service) + + # The constant tags for the dogstatsd client needs to updated with any new + # service(s) that may have been added. + self._update_dogstatsd_constant_tags() + + return span + + def _update_dogstatsd_constant_tags(self): + """ Prepare runtime tags for ddstatsd. + """ + # DEV: ddstatsd expects tags in the form ['key1:value1', 'key2:value2', ...] + tags = [ + '{}:{}'.format(k, v) + for k, v in RuntimeTags() + ] + self.log.debug('Updating constant tags %s', tags) + self._dogstatsd_client.constant_tags = tags + + def _start_runtime_worker(self): + self._runtime_worker = RuntimeWorker(self._dogstatsd_client, self._RUNTIME_METRICS_INTERVAL) + self._runtime_worker.start() + + def _check_new_process(self): + """ Checks if the tracer is in a new process (was forked) and performs + the necessary updates if it is a new process + """ + pid = getpid() + if self._pid == pid: + return + + self._pid = pid + + # Assume that the services of the child are not necessarily a subset of those + # of the parent. + self._services = set() + + if self._runtime_worker is not None: + self._start_runtime_worker() + + # force an immediate update constant tags since we have reset services + # and generated a new runtime id + self._update_dogstatsd_constant_tags() + + # Re-create the background writer thread + self.writer = self.writer.recreate() + + def trace(self, name, service=None, resource=None, span_type=None): + """ + Return a span that will trace an operation called `name`. The context that created + the span as well as the span parenting, are automatically handled by the tracing + function. + + :param str name: the name of the operation being traced + :param str service: the name of the service being traced. If not set, + it will inherit the service from its parent. + :param str resource: an optional name of the resource being tracked. + :param str span_type: an optional operation type. + + You must call `finish` on all spans, either directly or with a context + manager:: + + >>> span = tracer.trace('web.request') + try: + # do something + finally: + span.finish() + + >>> with tracer.trace('web.request') as span: + # do something + + Trace will store the current active span and subsequent child traces will + become its children:: + + parent = tracer.trace('parent') # has no parent span + child = tracer.trace('child') # is a child of a parent + child.finish() + parent.finish() + + parent2 = tracer.trace('parent2') # has no parent span + parent2.finish() + """ + # retrieve the Context using the context provider and create + # a new Span that could be a root or a nested span + context = self.get_call_context() + return self.start_span( + name, + child_of=context, + service=service, + resource=resource, + span_type=span_type, + ) + + def current_root_span(self): + """Returns the root span of the current context. + + This is useful for attaching information related to the trace as a + whole without needing to add to child spans. + + Usage is simple, for example:: + + # get the root span + root_span = tracer.current_root_span() + # set the host just once on the root span + if root_span: + root_span.set_tag('host', '127.0.0.1') + """ + ctx = self.get_call_context() + if ctx: + return ctx.get_current_root_span() + return None + + def current_span(self): + """ + Return the active span for the current call context or ``None`` + if no spans are available. + """ + ctx = self.get_call_context() + if ctx: + return ctx.get_current_span() + return None + + def record(self, context): + """ + Record the given ``Context`` if it's finished. + """ + # extract and enqueue the trace if it's sampled + trace, sampled = context.get() + if trace and sampled: + self.write(trace) + + def write(self, spans): + """ + Send the trace to the writer to enqueue the spans list in the agent + sending queue. + """ + if not spans: + return # nothing to do + + if self.log.isEnabledFor(logging.DEBUG): + self.log.debug('writing %s spans (enabled:%s)', len(spans), self.enabled) + for span in spans: + self.log.debug('\n%s', span.pprint()) + + if self.enabled and self.writer: + # only submit the spans if we're actually enabled (and don't crash :) + self.writer.write(spans=spans) + + @deprecated(message='Manually setting service info is no longer necessary', version='1.0.0') + def set_service_info(self, *args, **kwargs): + """Set the information about the given service. + """ + return + + def wrap(self, name=None, service=None, resource=None, span_type=None): + """ + A decorator used to trace an entire function. If the traced function + is a coroutine, it traces the coroutine execution when is awaited. + If a ``wrap_executor`` callable has been provided in the ``Tracer.configure()`` + method, it will be called instead of the default one when the function + decorator is invoked. + + :param str name: the name of the operation being traced. If not set, + defaults to the fully qualified function name. + :param str service: the name of the service being traced. If not set, + it will inherit the service from it's parent. + :param str resource: an optional name of the resource being tracked. + :param str span_type: an optional operation type. + + >>> @tracer.wrap('my.wrapped.function', service='my.service') + def run(): + return 'run' + + >>> # name will default to 'execute' if unset + @tracer.wrap() + def execute(): + return 'executed' + + >>> # or use it in asyncio coroutines + @tracer.wrap() + async def coroutine(): + return 'executed' + + >>> @tracer.wrap() + @asyncio.coroutine + def coroutine(): + return 'executed' + + You can access the current span using `tracer.current_span()` to set + tags: + + >>> @tracer.wrap() + def execute(): + span = tracer.current_span() + span.set_tag('a', 'b') + """ + def wrap_decorator(f): + # FIXME[matt] include the class name for methods. + span_name = name if name else '%s.%s' % (f.__module__, f.__name__) + + # detect if the the given function is a coroutine to use the + # right decorator; this initial check ensures that the + # evaluation is done only once for each @tracer.wrap + if compat.iscoroutinefunction(f): + # call the async factory that creates a tracing decorator capable + # to await the coroutine execution before finishing the span. This + # code is used for compatibility reasons to prevent Syntax errors + # in Python 2 + func_wrapper = compat.make_async_decorator( + self, f, span_name, + service=service, + resource=resource, + span_type=span_type, + ) + else: + @functools.wraps(f) + def func_wrapper(*args, **kwargs): + # if a wrap executor has been configured, it is used instead + # of the default tracing function + if getattr(self, '_wrap_executor', None): + return self._wrap_executor( + self, + f, args, kwargs, + span_name, + service=service, + resource=resource, + span_type=span_type, + ) + + # otherwise fallback to a default tracing + with self.trace(span_name, service=service, resource=resource, span_type=span_type): + return f(*args, **kwargs) + + return func_wrapper + return wrap_decorator + + def set_tags(self, tags): + """ Set some tags at the tracer level. + This will append those tags to each span created by the tracer. + + :param dict tags: dict of tags to set at tracer level + """ + self.tags.update(tags) diff --git a/ddtrace/util.py b/ddtrace/util.py new file mode 100644 index 0000000000..5151769877 --- /dev/null +++ b/ddtrace/util.py @@ -0,0 +1,20 @@ +# [Backward compatibility]: keep importing modules functions +from .utils.deprecation import deprecated, deprecation +from .utils.formats import asbool, deep_getattr, get_env +from .utils.wrappers import safe_patch, unwrap + + +deprecation( + name='ddtrace.util', + message='Use `ddtrace.utils` package instead', + version='1.0.0', +) + +__all__ = [ + 'deprecated', + 'asbool', + 'deep_getattr', + 'get_env', + 'safe_patch', + 'unwrap', +] diff --git a/ddtrace/utils/__init__.py b/ddtrace/utils/__init__.py new file mode 100644 index 0000000000..c46c5c7178 --- /dev/null +++ b/ddtrace/utils/__init__.py @@ -0,0 +1,27 @@ +from ..vendor import debtcollector + + +# https://stackoverflow.com/a/26853961 +def merge_dicts(x, y): + """Returns a copy of y merged into x.""" + z = x.copy() # start with x's keys and values + z.update(y) # modifies z with y's keys and values & returns None + return z + + +def get_module_name(module): + """Returns a module's name or None if one cannot be found. + Relevant PEP: https://www.python.org/dev/peps/pep-0451/ + """ + if hasattr(module, "__spec__"): + return module.__spec__.name + return getattr(module, "__name__", None) + + +# Based on: https://stackoverflow.com/a/7864317 +class removed_classproperty(property): + def __get__(self, cls, owner): + debtcollector.deprecate( + "Usage of ddtrace.ext.AppTypes is not longer supported, please use ddtrace.ext.SpanTypes" + ) + return classmethod(self.fget).__get__(None, owner)() diff --git a/ddtrace/utils/attrdict.py b/ddtrace/utils/attrdict.py new file mode 100644 index 0000000000..e153e2968c --- /dev/null +++ b/ddtrace/utils/attrdict.py @@ -0,0 +1,37 @@ +class AttrDict(dict): + """ + dict implementation that allows for item attribute access + + + Example:: + + data = AttrDict() + data['key'] = 'value' + print(data['key']) + + data.key = 'new-value' + print(data.key) + + # Convert an existing `dict` + data = AttrDict(dict(key='value')) + print(data.key) + """ + + def __getattr__(self, key): + if key in self: + return self[key] + return object.__getattribute__(self, key) + + def __setattr__(self, key, value): + # 1) Ensure if the key exists from a dict key we always prefer that + # 2) If we do not have an existing key but we do have an attr, set that + # 3) No existing key or attr exists, so set a key + if key in self: + # Update any existing key + self[key] = value + elif hasattr(self, key): + # Allow overwriting an existing attribute, e.g. `self.global_config = dict()` + object.__setattr__(self, key, value) + else: + # Set a new key + self[key] = value diff --git a/ddtrace/utils/config.py b/ddtrace/utils/config.py new file mode 100644 index 0000000000..4322120263 --- /dev/null +++ b/ddtrace/utils/config.py @@ -0,0 +1,11 @@ +import sys +import os + + +def get_application_name(): + """Attempts to find the application name using system arguments.""" + if hasattr(sys, "argv") and sys.argv[0]: + app_name = os.path.basename(sys.argv[0]) + else: + app_name = None + return app_name diff --git a/ddtrace/utils/deprecation.py b/ddtrace/utils/deprecation.py new file mode 100644 index 0000000000..c2102500cc --- /dev/null +++ b/ddtrace/utils/deprecation.py @@ -0,0 +1,61 @@ +import warnings + +from functools import wraps + + +class RemovedInDDTrace10Warning(DeprecationWarning): + pass + + +def format_message(name, message, version): + """Message formatter to create `DeprecationWarning` messages + such as: + + 'fn' is deprecated and will be remove in future versions (1.0). + """ + return "'{}' is deprecated and will be remove in future versions{}. {}".format( + name, " ({})".format(version) if version else "", message, + ) + + +def warn(message, stacklevel=2): + """Helper function used as a ``DeprecationWarning``.""" + warnings.warn(message, RemovedInDDTrace10Warning, stacklevel=stacklevel) + + +def deprecation(name="", message="", version=None): + """Function to report a ``DeprecationWarning``. Bear in mind that `DeprecationWarning` + are ignored by default so they're not available in user logs. To show them, + the application must be launched with a special flag: + + $ python -Wall script.py + + This approach is used by most of the frameworks, including Django + (ref: https://docs.djangoproject.com/en/2.0/howto/upgrade-version/#resolving-deprecation-warnings) + """ + msg = format_message(name, message, version) + warn(msg, stacklevel=4) + + +def deprecated(message="", version=None): + """Decorator function to report a ``DeprecationWarning``. Bear + in mind that `DeprecationWarning` are ignored by default so they're + not available in user logs. To show them, the application must be launched + with a special flag: + + $ python -Wall script.py + + This approach is used by most of the frameworks, including Django + (ref: https://docs.djangoproject.com/en/2.0/howto/upgrade-version/#resolving-deprecation-warnings) + """ + + def decorator(func): + @wraps(func) + def wrapper(*args, **kwargs): + msg = format_message(func.__name__, message, version) + warn(msg, stacklevel=3) + return func(*args, **kwargs) + + return wrapper + + return decorator diff --git a/ddtrace/utils/formats.py b/ddtrace/utils/formats.py new file mode 100644 index 0000000000..7fe13dab55 --- /dev/null +++ b/ddtrace/utils/formats.py @@ -0,0 +1,82 @@ +import os + +from .deprecation import deprecation + + +def get_env(integration, variable, default=None): + """Retrieves environment variables value for the given integration. It must be used + for consistency between integrations. The implementation is backward compatible + with legacy nomenclature: + + * `DATADOG_` is a legacy prefix with lower priority + * `DD_` environment variables have the highest priority + * the environment variable is built concatenating `integration` and `variable` + arguments + * return `default` otherwise + + """ + key = "{}_{}".format(integration, variable).upper() + legacy_env = "DATADOG_{}".format(key) + env = "DD_{}".format(key) + + value = os.getenv(env) + legacy = os.getenv(legacy_env) + if legacy: + # Deprecation: `DATADOG_` variables are deprecated + deprecation( + name="DATADOG_", message="Use `DD_` prefix instead", version="1.0.0", + ) + + value = value or legacy + return value if value else default + + +def deep_getattr(obj, attr_string, default=None): + """ + Returns the attribute of `obj` at the dotted path given by `attr_string` + If no such attribute is reachable, returns `default` + + >>> deep_getattr(cass, 'cluster') + >> deep_getattr(cass, 'cluster.metadata.partitioner') + u'org.apache.cassandra.dht.Murmur3Partitioner' + + >>> deep_getattr(cass, 'i.dont.exist', default='default') + 'default' + """ + attrs = attr_string.split(".") + for attr in attrs: + try: + obj = getattr(obj, attr) + except AttributeError: + return default + + return obj + + +def asbool(value): + """Convert the given String to a boolean object. + + Accepted values are `True` and `1`. + """ + if value is None: + return False + + if isinstance(value, bool): + return value + + return value.lower() in ("true", "1") + + +def flatten_dict(d, sep=".", prefix=""): + """ + Returns a normalized dict of depth 1 with keys in order of embedding + + """ + # adapted from https://stackoverflow.com/a/19647596 + return ( + {prefix + sep + k if prefix else k: v for kk, vv in d.items() for k, v in flatten_dict(vv, sep, kk).items()} + if isinstance(d, dict) + else {prefix: d} + ) diff --git a/ddtrace/utils/hook.py b/ddtrace/utils/hook.py new file mode 100644 index 0000000000..af1e776ede --- /dev/null +++ b/ddtrace/utils/hook.py @@ -0,0 +1,197 @@ +""" +This module is based off of wrapt.importer (wrapt==1.11.0) +https://github.com/GrahamDumpleton/wrapt/blob/4bcd190457c89e993ffcfec6dad9e9969c033e9e/src/wrapt/importer.py#L127-L136 + +The reasoning for this is that wrapt.importer does not provide a mechanism to +remove the import hooks and that wrapt removes the hooks after they are fired. + +So this module differs from wrapt.importer in that: + - removes unnecessary functionality (like allowing hooks to be import paths) + - deregister_post_import_hook is introduced to remove hooks + - the values of _post_import_hooks can only be lists (instead of allowing None) + - notify_module_loaded is modified to not remove the hooks when they are + fired. +""" +import sys +import threading + +from ..compat import PY3 +from ..internal.logger import get_logger +from ..utils import get_module_name +from ..vendor.wrapt.decorators import synchronized + + +log = get_logger(__name__) + + +_post_import_hooks = {} +_post_import_hooks_init = False +_post_import_hooks_lock = threading.RLock() + + +@synchronized(_post_import_hooks_lock) +def register_post_import_hook(name, hook): + """ + Registers a module import hook, ``hook`` for a module with name ``name``. + + If the module is already imported the hook is called immediately and a + debug message is logged since this should not be expected in our use-case. + + :param name: Name of the module (full dotted path) + :type name: str + :param hook: Callable to be invoked with the module when it is imported. + :type hook: Callable + :return: + """ + # Automatically install the import hook finder if it has not already + # been installed. + global _post_import_hooks_init + + if not _post_import_hooks_init: + _post_import_hooks_init = True + sys.meta_path.insert(0, ImportHookFinder()) + + hooks = _post_import_hooks.get(name, []) + + if hook in hooks: + log.debug('hook "%s" already exists on module "%s"', hook, name) + return + + module = sys.modules.get(name, None) + + # If the module has been imported already fire the hook and log a debug msg. + if module: + log.debug('module "%s" already imported, firing hook', name) + hook(module) + + hooks.append(hook) + _post_import_hooks[name] = hooks + + +@synchronized(_post_import_hooks_lock) +def notify_module_loaded(module): + """ + Indicate that a module has been loaded. Any post import hooks which were + registered for the target module will be invoked. + + Any raised exceptions will be caught and an error message indicating that + the hook failed. + + :param module: The module being loaded + :type module: ``types.ModuleType`` + """ + name = get_module_name(module) + hooks = _post_import_hooks.get(name, []) + + for hook in hooks: + try: + hook(module) + except Exception: + log.warning('hook "%s" for module "%s" failed', hook, name, exc_info=True) + + +class _ImportHookLoader(object): + """ + A custom module import finder. This intercepts attempts to import + modules and watches out for attempts to import target modules of + interest. When a module of interest is imported, then any post import + hooks which are registered will be invoked. + """ + + def load_module(self, fullname): + module = sys.modules[fullname] + notify_module_loaded(module) + return module + + +class _ImportHookChainedLoader(object): + def __init__(self, loader): + self.loader = loader + + def load_module(self, fullname): + module = self.loader.load_module(fullname) + notify_module_loaded(module) + return module + + +class ImportHookFinder: + def __init__(self): + self.in_progress = {} + + @synchronized(_post_import_hooks_lock) + def find_module(self, fullname, path=None): + # If the module being imported is not one we have registered + # post import hooks for, we can return immediately. We will + # take no further part in the importing of this module. + + if fullname not in _post_import_hooks: + return None + + # When we are interested in a specific module, we will call back + # into the import system a second time to defer to the import + # finder that is supposed to handle the importing of the module. + # We set an in progress flag for the target module so that on + # the second time through we don't trigger another call back + # into the import system and cause a infinite loop. + + if fullname in self.in_progress: + return None + + self.in_progress[fullname] = True + + # Now call back into the import system again. + + try: + if PY3: + # For Python 3 we need to use find_spec().loader + # from the importlib.util module. It doesn't actually + # import the target module and only finds the + # loader. If a loader is found, we need to return + # our own loader which will then in turn call the + # real loader to import the module and invoke the + # post import hooks. + try: + import importlib.util + + loader = importlib.util.find_spec(fullname).loader + except (ImportError, AttributeError): + loader = importlib.find_loader(fullname, path) + if loader: + return _ImportHookChainedLoader(loader) + else: + # For Python 2 we don't have much choice but to + # call back in to __import__(). This will + # actually cause the module to be imported. If no + # module could be found then ImportError will be + # raised. Otherwise we return a loader which + # returns the already loaded module and invokes + # the post import hooks. + __import__(fullname) + return _ImportHookLoader() + + finally: + del self.in_progress[fullname] + + +@synchronized(_post_import_hooks_lock) +def deregister_post_import_hook(modulename, hook): + """ + Deregisters post import hooks for a module given the module name and a hook + that was previously installed. + + :param modulename: Name of the module the hook is installed on. + :type: str + :param hook: The hook to remove (the function itself) + :type hook: Callable + :return: whether a hook was removed or not + """ + if modulename not in _post_import_hooks: + return False + + hooks = _post_import_hooks[modulename] + + try: + hooks.remove(hook) + return True + except ValueError: + return False diff --git a/ddtrace/utils/http.py b/ddtrace/utils/http.py new file mode 100644 index 0000000000..c4a433f78a --- /dev/null +++ b/ddtrace/utils/http.py @@ -0,0 +1,9 @@ +def normalize_header_name(header_name): + """ + Normalizes an header name to lower case, stripping all its leading and trailing white spaces. + :param header_name: the header name to normalize + :type header_name: str + :return: the normalized header name + :rtype: str + """ + return header_name.strip().lower() if header_name is not None else None diff --git a/ddtrace/utils/importlib.py b/ddtrace/utils/importlib.py new file mode 100644 index 0000000000..107b15ff6d --- /dev/null +++ b/ddtrace/utils/importlib.py @@ -0,0 +1,33 @@ +from __future__ import absolute_import + +from importlib import import_module + + +class require_modules(object): + """Context manager to check the availability of required modules.""" + + def __init__(self, modules): + self._missing_modules = [] + for module in modules: + try: + import_module(module) + except ImportError: + self._missing_modules.append(module) + + def __enter__(self): + return self._missing_modules + + def __exit__(self, exc_type, exc_value, traceback): + return False + + +def func_name(f): + """Return a human readable version of the function's name.""" + if hasattr(f, "__module__"): + return "%s.%s" % (f.__module__, getattr(f, "__name__", f.__class__.__name__)) + return getattr(f, "__name__", f.__class__.__name__) + + +def module_name(instance): + """Return the instance module name.""" + return instance.__class__.__module__.split(".")[0] diff --git a/ddtrace/utils/merge.py b/ddtrace/utils/merge.py new file mode 100644 index 0000000000..5ac6110d9b --- /dev/null +++ b/ddtrace/utils/merge.py @@ -0,0 +1,19 @@ +# Borrowed from: https://stackoverflow.com/questions/20656135/python-deep-merge-dictionary-data#20666342 +def deepmerge(source, destination): + """ + Merge the first provided ``dict`` into the second. + + :param dict source: The ``dict`` to merge into ``destination`` + :param dict destination: The ``dict`` that should get updated + :rtype: dict + :returns: ``destination`` modified + """ + for key, value in source.items(): + if isinstance(value, dict): + # get node or create one + node = destination.setdefault(key, {}) + deepmerge(value, node) + else: + destination[key] = value + + return destination diff --git a/ddtrace/utils/time.py b/ddtrace/utils/time.py new file mode 100644 index 0000000000..b563b65d41 --- /dev/null +++ b/ddtrace/utils/time.py @@ -0,0 +1,57 @@ +from ..vendor import monotonic + + +class StopWatch(object): + """A simple timer/stopwatch helper class. + + Not thread-safe (when a single watch is mutated by multiple threads at + the same time). Thread-safe when used by a single thread (not shared) or + when operations are performed in a thread-safe manner on these objects by + wrapping those operations with locks. + + It will use the `monotonic`_ pypi library to find an appropriate + monotonically increasing time providing function (which typically varies + depending on operating system and Python version). + + .. _monotonic: https://pypi.python.org/pypi/monotonic/ + """ + + def __init__(self): + self._started_at = None + self._stopped_at = None + + def start(self): + """Starts the watch.""" + self._started_at = monotonic.monotonic() + return self + + def elapsed(self): + """Get how many seconds have elapsed. + + :return: Number of seconds elapsed + :rtype: float + """ + # NOTE: datetime.timedelta does not support nanoseconds, so keep a float here + if self._started_at is None: + raise RuntimeError("Can not get the elapsed time of a stopwatch" " if it has not been started/stopped") + if self._stopped_at is None: + now = monotonic.monotonic() + else: + now = self._stopped_at + return now - self._started_at + + def __enter__(self): + """Starts the watch.""" + self.start() + return self + + def __exit__(self, tp, value, traceback): + """Stops the watch.""" + self.stop() + + def stop(self): + """Stops the watch.""" + if self._started_at is None: + raise RuntimeError("Can not stop a stopwatch that has not been" " started") + self._stopped_at = monotonic.monotonic() + return self diff --git a/ddtrace/utils/wrappers.py b/ddtrace/utils/wrappers.py new file mode 100644 index 0000000000..bfcf69a47e --- /dev/null +++ b/ddtrace/utils/wrappers.py @@ -0,0 +1,62 @@ +from ddtrace.vendor import wrapt +import inspect + +from .deprecation import deprecated + + +def unwrap(obj, attr): + f = getattr(obj, attr, None) + if f and isinstance(f, wrapt.ObjectProxy) and hasattr(f, "__wrapped__"): + setattr(obj, attr, f.__wrapped__) + + +@deprecated("`wrapt` library is used instead", version="1.0.0") +def safe_patch(patchable, key, patch_func, service, meta, tracer): + """ takes patch_func (signature: takes the orig_method that is + wrapped in the monkey patch == UNBOUND + service and meta) and + attach the patched result to patchable at patchable.key + + - If this is the module/class we can rely on methods being unbound, and just have to + update the __dict__ + - If this is an instance, we have to unbind the current and rebind our + patched method + - If patchable is an instance and if we've already patched at the module/class level + then patchable[key] contains an already patched command! + + To workaround this, check if patchable or patchable.__class__ are ``_dogtraced`` + If is isn't, nothing to worry about, patch the key as usual + But if it is, search for a '__dd_orig_{key}' method on the class, which is + the original unpatched method we wish to trace. + """ + + def _get_original_method(thing, key): + orig = None + if hasattr(thing, "_dogtraced"): + # Search for original method + orig = getattr(thing, "__dd_orig_{}".format(key), None) + else: + orig = getattr(thing, key) + # Set it for the next time we attempt to patch `thing` + setattr(thing, "__dd_orig_{}".format(key), orig) + + return orig + + if inspect.isclass(patchable) or inspect.ismodule(patchable): + orig = _get_original_method(patchable, key) + if not orig: + # Should never happen + return + elif hasattr(patchable, "__class__"): + orig = _get_original_method(patchable.__class__, key) + if not orig: + # Should never happen + return + else: + return + + dest = patch_func(orig, service, meta, tracer) + + if inspect.isclass(patchable) or inspect.ismodule(patchable): + setattr(patchable, key, dest) + elif hasattr(patchable, "__class__"): + setattr(patchable, key, dest.__get__(patchable, patchable.__class__)) diff --git a/ddtrace/vendor/__init__.py b/ddtrace/vendor/__init__.py new file mode 100644 index 0000000000..d3d436403d --- /dev/null +++ b/ddtrace/vendor/__init__.py @@ -0,0 +1,95 @@ +""" +ddtrace.vendor +============== +Install vendored dependencies under a different top level package to avoid importing `ddtrace/__init__.py` +whenever a dependency is imported. Doing this allows us to have a little more control over import order. + + +Dependencies +============ + +msgpack +------- + +Website: https://msgpack.org/ +Source: https://github.com/msgpack/msgpack-python +Version: 0.6.1 +License: Apache License, Version 2.0 + +Notes: + If you need to update any `*.pyx` files, be sure to run `cython --cplus msgpack/_cmsgpack.pyx` to regenerate `_cmsgpack.cpp` + + `_packer.pyx` and `_unpacker.pyx` were updated to import from `ddtrace.vendor.msgpack` + +six +--- + +Website: https://six.readthedocs.io/ +Source: https://github.com/benjaminp/six +Version: 1.11.0 +License: MIT + +Notes: + `six/__init__.py` is just the source code's `six.py` + `curl https://raw.githubusercontent.com/benjaminp/six/1.11.0/six.py > ddtrace/vendor/six/__init__.py` + + +wrapt +----- + +Website: https://wrapt.readthedocs.io/en/latest/ +Source: https://github.com/GrahamDumpleton/wrapt/ +Version: 1.11.1 +License: BSD 2-Clause "Simplified" License + +Notes: + `wrapt/__init__.py` was updated to include a copy of `wrapt`'s license: https://github.com/GrahamDumpleton/wrapt/blob/1.11.1/LICENSE + + `setup.py` will attempt to build the `wrapt/_wrappers.c` C module + +dogstatsd +--------- + +Website: https://datadogpy.readthedocs.io/en/latest/ +Source: https://github.com/DataDog/datadogpy +Version: 0.28.0 +License: Copyright (c) 2015, Datadog + +Notes: + `dogstatsd/__init__.py` was updated to include a copy of the `datadogpy` license: https://github.com/DataDog/datadogpy/blob/master/LICENSE + Only `datadog.dogstatsd` module was vendored to avoid unnecessary dependencies + `datadog/util/compat.py` was copied to `dogstatsd/compat.py` + +monotonic +--------- + +Website: https://pypi.org/project/monotonic/ +Source: https://github.com/atdt/monotonic +Version: 1.5 +License: Apache License 2.0 + +Notes: + The source `monotonic.py` was added as `monotonic/__init__.py` + + No other changes were made + +debtcollector +------------- + +Website: https://docs.openstack.org/debtcollector/latest/index.html +Source: https://github.com/openstack/debtcollector +Version: 1.22.0 +License: Apache License 2.0 + +Notes: + Removed dependency on `pbr` and manually set `__version__` + +""" + +# Initialize `ddtrace.vendor.datadog.base.log` logger with our custom rate limited logger +# DEV: This helps ensure if there are connection issues we do not spam their logs +# DEV: Overwrite `base.log` instead of `get_logger('datadog.dogstatsd')` so we do +# not conflict with any non-vendored datadog.dogstatsd logger +from ..internal.logger import get_logger +from .dogstatsd import base +base.log = get_logger('ddtrace.vendor.dogstatsd') diff --git a/ddtrace/vendor/debtcollector/__init__.py b/ddtrace/vendor/debtcollector/__init__.py new file mode 100644 index 0000000000..2fc6fded42 --- /dev/null +++ b/ddtrace/vendor/debtcollector/__init__.py @@ -0,0 +1,45 @@ +# -*- coding: utf-8 -*- + +# Licensed under the Apache License, Version 2.0 (the "License"); you may +# not use this file except in compliance with the License. You may obtain +# a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +# License for the specific language governing permissions and limitations +# under the License. + +from . import _utils, moves, removals, renames, updating + +__version__ = "1.22.0" + + +def deprecate(prefix, postfix=None, message=None, + version=None, removal_version=None, + stacklevel=3, category=DeprecationWarning): + """Helper to deprecate some thing using generated message format. + + :param prefix: prefix string used as the prefix of the output message + :param postfix: postfix string used as the postfix of the output message + :param message: message string used as ending contents of the deprecate + message + :param version: version string (represents the version this + deprecation was created in) + :param removal_version: version string (represents the version this + deprecation will be removed in); a string of '?' + will denote this will be removed in some future + unknown version + :param stacklevel: stacklevel used in the :func:`warnings.warn` function + to locate where the users code is in the + :func:`warnings.warn` call + :param category: the :mod:`warnings` category to use, defaults to + :py:class:`DeprecationWarning` if not provided + """ + out_message = _utils.generate_message(prefix, postfix=postfix, + version=version, message=message, + removal_version=removal_version) + _utils.deprecation(out_message, stacklevel=stacklevel, + category=category) diff --git a/ddtrace/vendor/debtcollector/_utils.py b/ddtrace/vendor/debtcollector/_utils.py new file mode 100644 index 0000000000..45691ab14d --- /dev/null +++ b/ddtrace/vendor/debtcollector/_utils.py @@ -0,0 +1,180 @@ +# -*- coding: utf-8 -*- + +# Copyright (C) 2015 Yahoo! Inc. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); you may +# not use this file except in compliance with the License. You may obtain +# a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +# License for the specific language governing permissions and limitations +# under the License. + +import functools +import inspect +import types +import warnings + +from .. import six + +try: + _TYPE_TYPE = types.TypeType +except AttributeError: + _TYPE_TYPE = type + + +# See: https://docs.python.org/2/library/__builtin__.html#module-__builtin__ +# and see https://docs.python.org/2/reference/executionmodel.html (and likely +# others)... +_BUILTIN_MODULES = ('builtins', '__builtin__', '__builtins__', 'exceptions') +_enabled = True + + +def deprecation(message, stacklevel=None, category=None): + """Warns about some type of deprecation that has been (or will be) made. + + This helper function makes it easier to interact with the warnings module + by standardizing the arguments that the warning function receives so that + it is easier to use. + + This should be used to emit warnings to users (users can easily turn these + warnings off/on, see https://docs.python.org/2/library/warnings.html + as they see fit so that the messages do not fill up the users logs with + warnings that they do not wish to see in production) about functions, + methods, attributes or other code that is deprecated and will be removed + in a future release (this is done using these warnings to avoid breaking + existing users of those functions, methods, code; which a library should + avoid doing by always giving at *least* N + 1 release for users to address + the deprecation warnings). + """ + if not _enabled: + return + if category is None: + category = DeprecationWarning + if stacklevel is None: + warnings.warn(message, category=category) + else: + warnings.warn(message, category=category, stacklevel=stacklevel) + + +def get_qualified_name(obj): + # Prefer the py3.x name (if we can get at it...) + try: + return (True, obj.__qualname__) + except AttributeError: + return (False, obj.__name__) + + +def generate_message(prefix, postfix=None, message=None, + version=None, removal_version=None): + """Helper to generate a common message 'style' for deprecation helpers.""" + message_components = [prefix] + if version: + message_components.append(" in version '%s'" % version) + if removal_version: + if removal_version == "?": + message_components.append(" and will be removed in a future" + " version") + else: + message_components.append(" and will be removed in version '%s'" + % removal_version) + if postfix: + message_components.append(postfix) + if message: + message_components.append(": %s" % message) + return ''.join(message_components) + + +def get_assigned(decorator): + """Helper to fix/workaround https://bugs.python.org/issue3445""" + if six.PY3: + return functools.WRAPPER_ASSIGNMENTS + else: + assigned = [] + for attr_name in functools.WRAPPER_ASSIGNMENTS: + if hasattr(decorator, attr_name): + assigned.append(attr_name) + return tuple(assigned) + + +def get_class_name(obj, fully_qualified=True): + """Get class name for object. + + If object is a type, fully qualified name of the type is returned. + Else, fully qualified name of the type of the object is returned. + For builtin types, just name is returned. + """ + if not isinstance(obj, six.class_types): + obj = type(obj) + try: + built_in = obj.__module__ in _BUILTIN_MODULES + except AttributeError: + pass + else: + if built_in: + return obj.__name__ + + if fully_qualified and hasattr(obj, '__module__'): + return '%s.%s' % (obj.__module__, obj.__name__) + else: + return obj.__name__ + + +def get_method_self(method): + """Gets the ``self`` object attached to this method (or none).""" + if not inspect.ismethod(method): + return None + try: + return six.get_method_self(method) + except AttributeError: + return None + + +def get_callable_name(function): + """Generate a name from callable. + + Tries to do the best to guess fully qualified callable name. + """ + method_self = get_method_self(function) + if method_self is not None: + # This is a bound method. + if isinstance(method_self, six.class_types): + # This is a bound class method. + im_class = method_self + else: + im_class = type(method_self) + try: + parts = (im_class.__module__, function.__qualname__) + except AttributeError: + parts = (im_class.__module__, im_class.__name__, function.__name__) + elif inspect.ismethod(function) or inspect.isfunction(function): + # This could be a function, a static method, a unbound method... + try: + parts = (function.__module__, function.__qualname__) + except AttributeError: + if hasattr(function, 'im_class'): + # This is a unbound method, which exists only in python 2.x + im_class = function.im_class + parts = (im_class.__module__, + im_class.__name__, function.__name__) + else: + parts = (function.__module__, function.__name__) + else: + im_class = type(function) + if im_class is _TYPE_TYPE: + im_class = function + try: + parts = (im_class.__module__, im_class.__qualname__) + except AttributeError: + parts = (im_class.__module__, im_class.__name__) + # When running under sphinx it appears this can be none? if so just + # don't include it... + mod, rest = (parts[0], parts[1:]) + if not mod: + return '.'.join(rest) + else: + return '.'.join(parts) diff --git a/ddtrace/vendor/debtcollector/moves.py b/ddtrace/vendor/debtcollector/moves.py new file mode 100644 index 0000000000..e0965930bb --- /dev/null +++ b/ddtrace/vendor/debtcollector/moves.py @@ -0,0 +1,197 @@ +# -*- coding: utf-8 -*- + +# Copyright (C) 2015 Yahoo! Inc. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); you may +# not use this file except in compliance with the License. You may obtain +# a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +# License for the specific language governing permissions and limitations +# under the License. + +import inspect + +from .. import six +from .. import wrapt + +from . import _utils + +_KIND_MOVED_PREFIX_TPL = "%s '%s' has moved to '%s'" +_CLASS_MOVED_PREFIX_TPL = "Class '%s' has moved to '%s'" +_MOVED_CALLABLE_POSTFIX = "()" +_FUNC_MOVED_PREFIX_TPL = "Function '%s' has moved to '%s'" + + +def _moved_decorator(kind, new_attribute_name, message=None, + version=None, removal_version=None, stacklevel=3, + attr_postfix=None, category=None): + """Decorates a method/property that was moved to another location.""" + + def decorator(f): + fully_qualified, old_attribute_name = _utils.get_qualified_name(f) + if attr_postfix: + old_attribute_name += attr_postfix + + @wrapt.decorator + def wrapper(wrapped, instance, args, kwargs): + base_name = _utils.get_class_name(wrapped, fully_qualified=False) + if fully_qualified: + old_name = old_attribute_name + else: + old_name = ".".join((base_name, old_attribute_name)) + new_name = ".".join((base_name, new_attribute_name)) + prefix = _KIND_MOVED_PREFIX_TPL % (kind, old_name, new_name) + out_message = _utils.generate_message( + prefix, message=message, + version=version, removal_version=removal_version) + _utils.deprecation(out_message, stacklevel=stacklevel, + category=category) + return wrapped(*args, **kwargs) + + return wrapper(f) + + return decorator + + +def moved_function(new_func, old_func_name, old_module_name, + message=None, version=None, removal_version=None, + stacklevel=3, category=None): + """Deprecates a function that was moved to another location. + + This generates a wrapper around ``new_func`` that will emit a deprecation + warning when called. The warning message will include the new location + to obtain the function from. + """ + new_func_full_name = _utils.get_callable_name(new_func) + new_func_full_name += _MOVED_CALLABLE_POSTFIX + old_func_full_name = ".".join([old_module_name, old_func_name]) + old_func_full_name += _MOVED_CALLABLE_POSTFIX + prefix = _FUNC_MOVED_PREFIX_TPL % (old_func_full_name, new_func_full_name) + out_message = _utils.generate_message(prefix, + message=message, version=version, + removal_version=removal_version) + + @six.wraps(new_func, assigned=_utils.get_assigned(new_func)) + def old_new_func(*args, **kwargs): + _utils.deprecation(out_message, stacklevel=stacklevel, + category=category) + return new_func(*args, **kwargs) + + old_new_func.__name__ = old_func_name + old_new_func.__module__ = old_module_name + return old_new_func + + +class moved_read_only_property(object): + """Descriptor for read-only properties moved to another location. + + This works like the ``@property`` descriptor but can be used instead to + provide the same functionality and also interact with the :mod:`warnings` + module to warn when a property is accessed, so that users of those + properties can know that a previously read-only property at a prior + location/name has moved to another location/name. + + :param old_name: old attribute location/name + :param new_name: new attribute location/name + :param version: version string (represents the version this deprecation + was created in) + :param removal_version: version string (represents the version this + deprecation will be removed in); a string + of '?' will denote this will be removed in + some future unknown version + :param stacklevel: stacklevel used in the :func:`warnings.warn` function + to locate where the users code is when reporting the + deprecation call (the default being 3) + :param category: the :mod:`warnings` category to use, defaults to + :py:class:`DeprecationWarning` if not provided + """ + + def __init__(self, old_name, new_name, + version=None, removal_version=None, + stacklevel=3, category=None): + self._old_name = old_name + self._new_name = new_name + self._message = _utils.generate_message( + "Read-only property '%s' has moved" + " to '%s'" % (self._old_name, self._new_name), + version=version, removal_version=removal_version) + self._stacklevel = stacklevel + self._category = category + + def __get__(self, instance, owner): + _utils.deprecation(self._message, + stacklevel=self._stacklevel, + category=self._category) + # This handles the descriptor being applied on a + # instance or a class and makes both work correctly... + if instance is not None: + real_owner = instance + else: + real_owner = owner + return getattr(real_owner, self._new_name) + + +def moved_method(new_method_name, message=None, + version=None, removal_version=None, stacklevel=3, + category=None): + """Decorates an *instance* method that was moved to another location.""" + if not new_method_name.endswith(_MOVED_CALLABLE_POSTFIX): + new_method_name += _MOVED_CALLABLE_POSTFIX + return _moved_decorator('Method', new_method_name, message=message, + version=version, removal_version=removal_version, + stacklevel=stacklevel, + attr_postfix=_MOVED_CALLABLE_POSTFIX, + category=category) + + +def moved_property(new_attribute_name, message=None, + version=None, removal_version=None, stacklevel=3, + category=None): + """Decorates an *instance* property that was moved to another location.""" + return _moved_decorator('Property', new_attribute_name, message=message, + version=version, removal_version=removal_version, + stacklevel=stacklevel, category=category) + + +def moved_class(new_class, old_class_name, old_module_name, + message=None, version=None, removal_version=None, + stacklevel=3, category=None): + """Deprecates a class that was moved to another location. + + This creates a 'new-old' type that can be used for a + deprecation period that can be inherited from. This will emit warnings + when the old locations class is initialized, telling where the new and + improved location for the old class now is. + """ + + if not inspect.isclass(new_class): + _qual, type_name = _utils.get_qualified_name(type(new_class)) + raise TypeError("Unexpected class type '%s' (expected" + " class type only)" % type_name) + + old_name = ".".join((old_module_name, old_class_name)) + new_name = _utils.get_class_name(new_class) + prefix = _CLASS_MOVED_PREFIX_TPL % (old_name, new_name) + out_message = _utils.generate_message( + prefix, message=message, version=version, + removal_version=removal_version) + + def decorator(f): + + @six.wraps(f, assigned=_utils.get_assigned(f)) + def wrapper(self, *args, **kwargs): + _utils.deprecation(out_message, stacklevel=stacklevel, + category=category) + return f(self, *args, **kwargs) + + return wrapper + + old_class = type(old_class_name, (new_class,), {}) + old_class.__module__ = old_module_name + old_class.__init__ = decorator(old_class.__init__) + return old_class diff --git a/ddtrace/vendor/debtcollector/removals.py b/ddtrace/vendor/debtcollector/removals.py new file mode 100644 index 0000000000..0add069e76 --- /dev/null +++ b/ddtrace/vendor/debtcollector/removals.py @@ -0,0 +1,334 @@ +# Copyright 2014 Hewlett-Packard Development Company, L.P. +# +# Licensed under the Apache License, Version 2.0 (the "License"); you may +# not use this file except in compliance with the License. You may obtain +# a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +# License for the specific language governing permissions and limitations +# under the License. + +import functools +import inspect + +from .. import six +from .. import wrapt + +from . import _utils + + +def _get_qualified_name(obj): + return _utils.get_qualified_name(obj)[1] + + +def _fetch_first_result(fget, fset, fdel, apply_func, value_not_found=None): + """Fetch first non-none/empty result of applying ``apply_func``.""" + for f in filter(None, (fget, fset, fdel)): + result = apply_func(f) + if result: + return result + return value_not_found + + +class removed_property(object): + """Property descriptor that deprecates a property. + + This works like the ``@property`` descriptor but can be used instead to + provide the same functionality and also interact with the :mod:`warnings` + module to warn when a property is accessed, set and/or deleted. + + :param message: string used as ending contents of the deprecate message + :param version: version string (represents the version this deprecation + was created in) + :param removal_version: version string (represents the version this + deprecation will be removed in); a string + of '?' will denote this will be removed in + some future unknown version + :param stacklevel: stacklevel used in the :func:`warnings.warn` function + to locate where the users code is when reporting the + deprecation call (the default being 3) + :param category: the :mod:`warnings` category to use, defaults to + :py:class:`DeprecationWarning` if not provided + """ + + # Message templates that will be turned into real messages as needed. + _PROPERTY_GONE_TPLS = { + 'set': "Setting the '%s' property is deprecated", + 'get': "Reading the '%s' property is deprecated", + 'delete': "Deleting the '%s' property is deprecated", + } + + def __init__(self, fget=None, fset=None, fdel=None, doc=None, + stacklevel=3, category=DeprecationWarning, + version=None, removal_version=None, message=None): + self.fset = fset + self.fget = fget + self.fdel = fdel + self.stacklevel = stacklevel + self.category = category + self.version = version + self.removal_version = removal_version + self.message = message + if doc is None and inspect.isfunction(fget): + doc = getattr(fget, '__doc__', None) + self._message_cache = {} + self.__doc__ = doc + + def _fetch_message_from_cache(self, kind): + try: + out_message = self._message_cache[kind] + except KeyError: + prefix_tpl = self._PROPERTY_GONE_TPLS[kind] + prefix = prefix_tpl % _fetch_first_result( + self.fget, self.fset, self.fdel, _get_qualified_name, + value_not_found="???") + out_message = _utils.generate_message( + prefix, message=self.message, version=self.version, + removal_version=self.removal_version) + self._message_cache[kind] = out_message + return out_message + + def __call__(self, fget, **kwargs): + self.fget = fget + self.message = kwargs.get('message', self.message) + self.version = kwargs.get('version', self.version) + self.removal_version = kwargs.get('removal_version', + self.removal_version) + self.stacklevel = kwargs.get('stacklevel', self.stacklevel) + self.category = kwargs.get('category', self.category) + self.__doc__ = kwargs.get('doc', + getattr(fget, '__doc__', self.__doc__)) + # Regenerate all the messages... + self._message_cache.clear() + return self + + def __delete__(self, obj): + if self.fdel is None: + raise AttributeError("can't delete attribute") + out_message = self._fetch_message_from_cache('delete') + _utils.deprecation(out_message, stacklevel=self.stacklevel, + category=self.category) + self.fdel(obj) + + def __set__(self, obj, value): + if self.fset is None: + raise AttributeError("can't set attribute") + out_message = self._fetch_message_from_cache('set') + _utils.deprecation(out_message, stacklevel=self.stacklevel, + category=self.category) + self.fset(obj, value) + + def __get__(self, obj, value): + if obj is None: + return self + if self.fget is None: + raise AttributeError("unreadable attribute") + out_message = self._fetch_message_from_cache('get') + _utils.deprecation(out_message, stacklevel=self.stacklevel, + category=self.category) + return self.fget(obj) + + def getter(self, fget): + o = type(self)(fget, self.fset, self.fdel, self.__doc__) + o.message = self.message + o.version = self.version + o.stacklevel = self.stacklevel + o.removal_version = self.removal_version + o.category = self.category + return o + + def setter(self, fset): + o = type(self)(self.fget, fset, self.fdel, self.__doc__) + o.message = self.message + o.version = self.version + o.stacklevel = self.stacklevel + o.removal_version = self.removal_version + o.category = self.category + return o + + def deleter(self, fdel): + o = type(self)(self.fget, self.fset, fdel, self.__doc__) + o.message = self.message + o.version = self.version + o.stacklevel = self.stacklevel + o.removal_version = self.removal_version + o.category = self.category + return o + + +def remove(f=None, message=None, version=None, removal_version=None, + stacklevel=3, category=None): + """Decorates a function, method, or class to emit a deprecation warning + + Due to limitations of the wrapt library (and python) itself, if this + is applied to subclasses of metaclasses then it likely will not work + as expected. More information can be found at bug #1520397 to see if + this situation affects your usage of this *universal* decorator, for + this specific scenario please use :py:func:`.removed_class` instead. + + :param str message: A message to include in the deprecation warning + :param str version: Specify what version the removed function is present in + :param str removal_version: What version the function will be removed. If + '?' is used this implies an undefined future + version + :param int stacklevel: How many entries deep in the call stack before + ignoring + :param type category: warnings message category (this defaults to + ``DeprecationWarning`` when none is provided) + """ + if f is None: + return functools.partial(remove, message=message, + version=version, + removal_version=removal_version, + stacklevel=stacklevel, + category=category) + + @wrapt.decorator + def wrapper(f, instance, args, kwargs): + qualified, f_name = _utils.get_qualified_name(f) + if qualified: + if inspect.isclass(f): + prefix_pre = "Using class" + thing_post = '' + else: + prefix_pre = "Using function/method" + thing_post = '()' + if not qualified: + prefix_pre = "Using function/method" + base_name = None + if instance is None: + # Decorator was used on a class + if inspect.isclass(f): + prefix_pre = "Using class" + thing_post = '' + module_name = _get_qualified_name(inspect.getmodule(f)) + if module_name == '__main__': + f_name = _utils.get_class_name( + f, fully_qualified=False) + else: + f_name = _utils.get_class_name( + f, fully_qualified=True) + # Decorator was a used on a function + else: + thing_post = '()' + module_name = _get_qualified_name(inspect.getmodule(f)) + if module_name != '__main__': + f_name = _utils.get_callable_name(f) + # Decorator was used on a classmethod or instancemethod + else: + thing_post = '()' + base_name = _utils.get_class_name(instance, + fully_qualified=False) + if base_name: + thing_name = ".".join([base_name, f_name]) + else: + thing_name = f_name + else: + thing_name = f_name + if thing_post: + thing_name += thing_post + prefix = prefix_pre + " '%s' is deprecated" % (thing_name) + out_message = _utils.generate_message( + prefix, + version=version, + removal_version=removal_version, + message=message) + _utils.deprecation(out_message, + stacklevel=stacklevel, category=category) + return f(*args, **kwargs) + return wrapper(f) + + +def removed_kwarg(old_name, message=None, + version=None, removal_version=None, stacklevel=3, + category=None): + """Decorates a kwarg accepting function to deprecate a removed kwarg.""" + + prefix = "Using the '%s' argument is deprecated" % old_name + out_message = _utils.generate_message( + prefix, postfix=None, message=message, version=version, + removal_version=removal_version) + + @wrapt.decorator + def wrapper(f, instance, args, kwargs): + if old_name in kwargs: + _utils.deprecation(out_message, + stacklevel=stacklevel, category=category) + return f(*args, **kwargs) + + return wrapper + + +def removed_class(cls_name, replacement=None, message=None, + version=None, removal_version=None, stacklevel=3, + category=None): + """Decorates a class to denote that it will be removed at some point.""" + + def _wrap_it(old_init, out_message): + + @six.wraps(old_init, assigned=_utils.get_assigned(old_init)) + def new_init(self, *args, **kwargs): + _utils.deprecation(out_message, stacklevel=stacklevel, + category=category) + return old_init(self, *args, **kwargs) + + return new_init + + def _check_it(cls): + if not inspect.isclass(cls): + _qual, type_name = _utils.get_qualified_name(type(cls)) + raise TypeError("Unexpected class type '%s' (expected" + " class type only)" % type_name) + + def _cls_decorator(cls): + _check_it(cls) + out_message = _utils.generate_message( + "Using class '%s' (either directly or via inheritance)" + " is deprecated" % cls_name, postfix=None, message=message, + version=version, removal_version=removal_version) + cls.__init__ = _wrap_it(cls.__init__, out_message) + return cls + + return _cls_decorator + + +def removed_module(module, replacement=None, message=None, + version=None, removal_version=None, stacklevel=3, + category=None): + """Helper to be called inside a module to emit a deprecation warning + + :param str replacment: A location (or information about) of any potential + replacement for the removed module (if applicable) + :param str message: A message to include in the deprecation warning + :param str version: Specify what version the removed module is present in + :param str removal_version: What version the module will be removed. If + '?' is used this implies an undefined future + version + :param int stacklevel: How many entries deep in the call stack before + ignoring + :param type category: warnings message category (this defaults to + ``DeprecationWarning`` when none is provided) + """ + if inspect.ismodule(module): + module_name = _get_qualified_name(module) + elif isinstance(module, six.string_types): + module_name = module + else: + _qual, type_name = _utils.get_qualified_name(type(module)) + raise TypeError("Unexpected module type '%s' (expected string or" + " module type only)" % type_name) + prefix = "The '%s' module usage is deprecated" % module_name + if replacement: + postfix = ", please use %s instead" % replacement + else: + postfix = None + out_message = _utils.generate_message(prefix, + postfix=postfix, message=message, + version=version, + removal_version=removal_version) + _utils.deprecation(out_message, + stacklevel=stacklevel, category=category) diff --git a/ddtrace/vendor/debtcollector/renames.py b/ddtrace/vendor/debtcollector/renames.py new file mode 100644 index 0000000000..d31853aa6f --- /dev/null +++ b/ddtrace/vendor/debtcollector/renames.py @@ -0,0 +1,45 @@ +# -*- coding: utf-8 -*- + +# Copyright (C) 2015 Yahoo! Inc. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); you may +# not use this file except in compliance with the License. You may obtain +# a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +# License for the specific language governing permissions and limitations +# under the License. + +from .. import wrapt + +from . import _utils + +_KWARG_RENAMED_POSTFIX_TPL = ", please use the '%s' argument instead" +_KWARG_RENAMED_PREFIX_TPL = "Using the '%s' argument is deprecated" + + +def renamed_kwarg(old_name, new_name, message=None, + version=None, removal_version=None, stacklevel=3, + category=None, replace=False): + """Decorates a kwarg accepting function to deprecate a renamed kwarg.""" + + prefix = _KWARG_RENAMED_PREFIX_TPL % old_name + postfix = _KWARG_RENAMED_POSTFIX_TPL % new_name + out_message = _utils.generate_message( + prefix, postfix=postfix, message=message, version=version, + removal_version=removal_version) + + @wrapt.decorator + def decorator(wrapped, instance, args, kwargs): + if old_name in kwargs: + _utils.deprecation(out_message, + stacklevel=stacklevel, category=category) + if replace: + kwargs.setdefault(new_name, kwargs.pop(old_name)) + return wrapped(*args, **kwargs) + + return decorator diff --git a/ddtrace/vendor/debtcollector/updating.py b/ddtrace/vendor/debtcollector/updating.py new file mode 100644 index 0000000000..d89eafd206 --- /dev/null +++ b/ddtrace/vendor/debtcollector/updating.py @@ -0,0 +1,68 @@ +# -*- coding: utf-8 -*- + +# Copyright (C) 2015 Yahoo! Inc. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); you may +# not use this file except in compliance with the License. You may obtain +# a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +# License for the specific language governing permissions and limitations +# under the License. + +from .. import six +from .. import wrapt +if six.PY3: + import inspect + Parameter = inspect.Parameter + Signature = inspect.Signature + get_signature = inspect.signature +else: + # Provide an equivalent but use funcsigs instead... + import funcsigs + Parameter = funcsigs.Parameter + Signature = funcsigs.Signature + get_signature = funcsigs.signature + +from . import _utils + +_KWARG_UPDATED_POSTFIX_TPL = (', please update the code to explicitly set %s ' + 'as the value') +_KWARG_UPDATED_PREFIX_TPL = ('The %s argument is changing its default value ' + 'to %s') + + +def updated_kwarg_default_value(name, old_value, new_value, message=None, + version=None, stacklevel=3, + category=FutureWarning): + + """Decorates a kwarg accepting function to change the default value""" + + prefix = _KWARG_UPDATED_PREFIX_TPL % (name, new_value) + postfix = _KWARG_UPDATED_POSTFIX_TPL % old_value + out_message = _utils.generate_message( + prefix, postfix=postfix, message=message, version=version) + + def decorator(f): + sig = get_signature(f) + varnames = list(six.iterkeys(sig.parameters)) + + @wrapt.decorator + def wrapper(wrapped, instance, args, kwargs): + explicit_params = set( + varnames[:len(args)] + list(kwargs.keys()) + ) + allparams = set(varnames) + default_params = set(allparams - explicit_params) + if name in default_params: + _utils.deprecation(out_message, + stacklevel=stacklevel, category=category) + return wrapped(*args, **kwargs) + + return wrapper(f) + + return decorator diff --git a/ddtrace/vendor/dogstatsd/__init__.py b/ddtrace/vendor/dogstatsd/__init__.py new file mode 100644 index 0000000000..0e93d75234 --- /dev/null +++ b/ddtrace/vendor/dogstatsd/__init__.py @@ -0,0 +1,28 @@ +""" +Copyright (c) 2015, Datadog +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of Datadog nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY +DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +""" + +from .base import DogStatsd, statsd # noqa diff --git a/ddtrace/vendor/dogstatsd/base.py b/ddtrace/vendor/dogstatsd/base.py new file mode 100644 index 0000000000..f0167cf8d6 --- /dev/null +++ b/ddtrace/vendor/dogstatsd/base.py @@ -0,0 +1,425 @@ +#!/usr/bin/env python +""" +DogStatsd is a Python client for DogStatsd, a Statsd fork for Datadog. +""" +# stdlib +from random import random +import logging +import os +import socket +from threading import Lock + +# datadog +from .context import TimedContextManagerDecorator +from .route import get_default_route +from .compat import text + +# Logging +log = logging.getLogger('datadog.dogstatsd') + +# Default config +DEFAULT_HOST = 'localhost' +DEFAULT_PORT = 8125 + +# Tag name of entity_id +ENTITY_ID_TAG_NAME = "dd.internal.entity_id" + + +class DogStatsd(object): + OK, WARNING, CRITICAL, UNKNOWN = (0, 1, 2, 3) + + def __init__(self, host=DEFAULT_HOST, port=DEFAULT_PORT, max_buffer_size=50, namespace=None, + constant_tags=None, use_ms=False, use_default_route=False, + socket_path=None): + """ + Initialize a DogStatsd object. + + >>> statsd = DogStatsd() + + :envvar DD_AGENT_HOST: the host of the DogStatsd server. + If set, it overrides default value. + :type DD_AGENT_HOST: string + + :envvar DD_DOGSTATSD_PORT: the port of the DogStatsd server. + If set, it overrides default value. + :type DD_DOGSTATSD_PORT: integer + + :param host: the host of the DogStatsd server. + :type host: string + + :param port: the port of the DogStatsd server. + :type port: integer + + :param max_buffer_size: Maximum number of metrics to buffer before sending to the server + if sending metrics in batch + :type max_buffer_size: integer + + :param namespace: Namespace to prefix all metric names + :type namespace: string + + :param constant_tags: Tags to attach to all metrics + :type constant_tags: list of strings + + :param use_ms: Report timed values in milliseconds instead of seconds (default False) + :type use_ms: boolean + + :envvar DATADOG_TAGS: Tags to attach to every metric reported by dogstatsd client + :type DATADOG_TAGS: list of strings + + :envvar DD_ENTITY_ID: Tag to identify the client entity. + :type DD_ENTITY_ID: string + + :param use_default_route: Dynamically set the DogStatsd host to the default route + (Useful when running the client in a container) (Linux only) + :type use_default_route: boolean + + :param socket_path: Communicate with dogstatsd through a UNIX socket instead of + UDP. If set, disables UDP transmission (Linux only) + :type socket_path: string + """ + + self.lock = Lock() + + # Check host and port env vars + agent_host = os.environ.get('DD_AGENT_HOST') + if agent_host and host == DEFAULT_HOST: + host = agent_host + + dogstatsd_port = os.environ.get('DD_DOGSTATSD_PORT') + if dogstatsd_port and port == DEFAULT_PORT: + try: + port = int(dogstatsd_port) + except ValueError: + log.warning("Port number provided in DD_DOGSTATSD_PORT env var is not an integer: \ + %s, using %s as port number", dogstatsd_port, port) + + # Connection + if socket_path is not None: + self.socket_path = socket_path + self.host = None + self.port = None + else: + self.socket_path = None + self.host = self.resolve_host(host, use_default_route) + self.port = int(port) + + # Socket + self.socket = None + self.max_buffer_size = max_buffer_size + self._send = self._send_to_server + self.encoding = 'utf-8' + + # Options + env_tags = [tag for tag in os.environ.get('DATADOG_TAGS', '').split(',') if tag] + if constant_tags is None: + constant_tags = [] + self.constant_tags = constant_tags + env_tags + entity_id = os.environ.get('DD_ENTITY_ID') + if entity_id: + entity_tag = '{name}:{value}'.format(name=ENTITY_ID_TAG_NAME, value=entity_id) + self.constant_tags.append(entity_tag) + if namespace is not None: + namespace = text(namespace) + self.namespace = namespace + self.use_ms = use_ms + + def __enter__(self): + self.open_buffer(self.max_buffer_size) + return self + + def __exit__(self, type, value, traceback): + self.close_buffer() + + @staticmethod + def resolve_host(host, use_default_route): + """ + Resolve the DogStatsd host. + + Args: + host (string): host + use_default_route (bool): use the system default route as host + (overrides the `host` parameter) + """ + if not use_default_route: + return host + + return get_default_route() + + def get_socket(self): + """ + Return a connected socket. + + Note: connect the socket before assigning it to the class instance to + avoid bad thread race conditions. + """ + with self.lock: + if not self.socket: + if self.socket_path is not None: + sock = socket.socket(socket.AF_UNIX, socket.SOCK_DGRAM) + sock.connect(self.socket_path) + sock.setblocking(0) + self.socket = sock + else: + sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) + sock.connect((self.host, self.port)) + self.socket = sock + + return self.socket + + def open_buffer(self, max_buffer_size=50): + """ + Open a buffer to send a batch of metrics in one packet. + + You can also use this as a context manager. + + >>> with DogStatsd() as batch: + >>> batch.gauge('users.online', 123) + >>> batch.gauge('active.connections', 1001) + """ + self.max_buffer_size = max_buffer_size + self.buffer = [] + self._send = self._send_to_buffer + + def close_buffer(self): + """ + Flush the buffer and switch back to single metric packets. + """ + self._send = self._send_to_server + + if self.buffer: + # Only send packets if there are packets to send + self._flush_buffer() + + def gauge(self, metric, value, tags=None, sample_rate=1): + """ + Record the value of a gauge, optionally setting a list of tags and a + sample rate. + + >>> statsd.gauge('users.online', 123) + >>> statsd.gauge('active.connections', 1001, tags=["protocol:http"]) + """ + return self._report(metric, 'g', value, tags, sample_rate) + + def increment(self, metric, value=1, tags=None, sample_rate=1): + """ + Increment a counter, optionally setting a value, tags and a sample + rate. + + >>> statsd.increment('page.views') + >>> statsd.increment('files.transferred', 124) + """ + self._report(metric, 'c', value, tags, sample_rate) + + def decrement(self, metric, value=1, tags=None, sample_rate=1): + """ + Decrement a counter, optionally setting a value, tags and a sample + rate. + + >>> statsd.decrement('files.remaining') + >>> statsd.decrement('active.connections', 2) + """ + metric_value = -value if value else value + self._report(metric, 'c', metric_value, tags, sample_rate) + + def histogram(self, metric, value, tags=None, sample_rate=1): + """ + Sample a histogram value, optionally setting tags and a sample rate. + + >>> statsd.histogram('uploaded.file.size', 1445) + >>> statsd.histogram('album.photo.count', 26, tags=["gender:female"]) + """ + self._report(metric, 'h', value, tags, sample_rate) + + def distribution(self, metric, value, tags=None, sample_rate=1): + """ + Send a global distribution value, optionally setting tags and a sample rate. + + >>> statsd.distribution('uploaded.file.size', 1445) + >>> statsd.distribution('album.photo.count', 26, tags=["gender:female"]) + + This is a beta feature that must be enabled specifically for your organization. + """ + self._report(metric, 'd', value, tags, sample_rate) + + def timing(self, metric, value, tags=None, sample_rate=1): + """ + Record a timing, optionally setting tags and a sample rate. + + >>> statsd.timing("query.response.time", 1234) + """ + self._report(metric, 'ms', value, tags, sample_rate) + + def timed(self, metric=None, tags=None, sample_rate=1, use_ms=None): + """ + A decorator or context manager that will measure the distribution of a + function's/context's run time. Optionally specify a list of tags or a + sample rate. If the metric is not defined as a decorator, the module + name and function name will be used. The metric is required as a context + manager. + :: + + @statsd.timed('user.query.time', sample_rate=0.5) + def get_user(user_id): + # Do what you need to ... + pass + + # Is equivalent to ... + with statsd.timed('user.query.time', sample_rate=0.5): + # Do what you need to ... + pass + + # Is equivalent to ... + start = time.time() + try: + get_user(user_id) + finally: + statsd.timing('user.query.time', time.time() - start) + """ + return TimedContextManagerDecorator(self, metric, tags, sample_rate, use_ms) + + def set(self, metric, value, tags=None, sample_rate=1): + """ + Sample a set value. + + >>> statsd.set('visitors.uniques', 999) + """ + self._report(metric, 's', value, tags, sample_rate) + + def close_socket(self): + """ + Closes connected socket if connected. + """ + if self.socket: + self.socket.close() + self.socket = None + + def _report(self, metric, metric_type, value, tags, sample_rate): + """ + Create a metric packet and send it. + + More information about the packets' format: http://docs.datadoghq.com/guides/dogstatsd/ + """ + if value is None: + return + + if sample_rate != 1 and random() > sample_rate: + return + + # Resolve the full tag list + tags = self._add_constant_tags(tags) + + # Create/format the metric packet + payload = "%s%s:%s|%s%s%s" % ( + (self.namespace + ".") if self.namespace else "", + metric, + value, + metric_type, + ("|@" + text(sample_rate)) if sample_rate != 1 else "", + ("|#" + ",".join(tags)) if tags else "", + ) + + # Send it + self._send(payload) + + def _send_to_server(self, packet): + try: + # If set, use socket directly + (self.socket or self.get_socket()).send(packet.encode(self.encoding)) + except socket.timeout: + # dogstatsd is overflowing, drop the packets (mimicks the UDP behaviour) + return + except (socket.error, socket.herror, socket.gaierror) as se: + log.warning("Error submitting packet: {}, dropping the packet and closing the socket".format(se)) + self.close_socket() + except Exception as e: + log.error("Unexpected error: %s", str(e)) + return + + def _send_to_buffer(self, packet): + self.buffer.append(packet) + if len(self.buffer) >= self.max_buffer_size: + self._flush_buffer() + + def _flush_buffer(self): + self._send_to_server("\n".join(self.buffer)) + self.buffer = [] + + def _escape_event_content(self, string): + return string.replace('\n', '\\n') + + def _escape_service_check_message(self, string): + return string.replace('\n', '\\n').replace('m:', 'm\\:') + + def event(self, title, text, alert_type=None, aggregation_key=None, + source_type_name=None, date_happened=None, priority=None, + tags=None, hostname=None): + """ + Send an event. Attributes are the same as the Event API. + http://docs.datadoghq.com/api/ + + >>> statsd.event('Man down!', 'This server needs assistance.') + >>> statsd.event('The web server restarted', 'The web server is up again', alert_type='success') # NOQA + """ + title = self._escape_event_content(title) + text = self._escape_event_content(text) + + # Append all client level tags to every event + tags = self._add_constant_tags(tags) + + string = u'_e{%d,%d}:%s|%s' % (len(title), len(text), title, text) + if date_happened: + string = '%s|d:%d' % (string, date_happened) + if hostname: + string = '%s|h:%s' % (string, hostname) + if aggregation_key: + string = '%s|k:%s' % (string, aggregation_key) + if priority: + string = '%s|p:%s' % (string, priority) + if source_type_name: + string = '%s|s:%s' % (string, source_type_name) + if alert_type: + string = '%s|t:%s' % (string, alert_type) + if tags: + string = '%s|#%s' % (string, ','.join(tags)) + + if len(string) > 8 * 1024: + raise Exception(u'Event "%s" payload is too big (more than 8KB), ' + 'event discarded' % title) + + self._send(string) + + def service_check(self, check_name, status, tags=None, timestamp=None, + hostname=None, message=None): + """ + Send a service check run. + + >>> statsd.service_check('my_service.check_name', DogStatsd.WARNING) + """ + message = self._escape_service_check_message(message) if message is not None else '' + + string = u'_sc|{0}|{1}'.format(check_name, status) + + # Append all client level tags to every status check + tags = self._add_constant_tags(tags) + + if timestamp: + string = u'{0}|d:{1}'.format(string, timestamp) + if hostname: + string = u'{0}|h:{1}'.format(string, hostname) + if tags: + string = u'{0}|#{1}'.format(string, ','.join(tags)) + if message: + string = u'{0}|m:{1}'.format(string, message) + + self._send(string) + + def _add_constant_tags(self, tags): + if self.constant_tags: + if tags: + return tags + self.constant_tags + else: + return self.constant_tags + return tags + + +statsd = DogStatsd() diff --git a/ddtrace/vendor/dogstatsd/compat.py b/ddtrace/vendor/dogstatsd/compat.py new file mode 100644 index 0000000000..bff3899ae8 --- /dev/null +++ b/ddtrace/vendor/dogstatsd/compat.py @@ -0,0 +1,107 @@ +# flake8: noqa +""" +Imports for compatibility with Python 2, Python 3 and Google App Engine. +""" +from functools import wraps +import logging +import socket +import sys + + +def _is_py_version_higher_than(major, minor=0): + """ + Assert that the Python version is higher than `$maj.$min`. + """ + return sys.version_info >= (major, minor) + + +def is_p3k(): + """ + Assert that Python is version 3 or higher. + """ + return _is_py_version_higher_than(3) + + +def is_higher_py35(): + """ + Assert that Python is version 3.5 or higher. + """ + return _is_py_version_higher_than(3, 5) + + +get_input = input + +# Python 3.x +if is_p3k(): + from io import StringIO + import builtins + import configparser + import urllib.request as url_lib, urllib.error, urllib.parse + + imap = map + text = str + + def iteritems(d): + return iter(d.items()) + + def iternext(iter): + return next(iter) + + +# Python 2.x +else: + import __builtin__ as builtins + from cStringIO import StringIO + from itertools import imap + import ConfigParser as configparser + import urllib2 as url_lib + + get_input = raw_input + text = unicode + + def iteritems(d): + return d.iteritems() + + def iternext(iter): + return iter.next() + + +# Python > 3.5 +if is_higher_py35(): + from asyncio import iscoroutinefunction + +# Others +else: + def iscoroutinefunction(*args, **kwargs): + return False + +# Optional requirements +try: + from UserDict import IterableUserDict +except ImportError: + from collections import UserDict as IterableUserDict + +try: + from configparser import ConfigParser +except ImportError: + from ConfigParser import ConfigParser + +try: + from urllib.parse import urlparse +except ImportError: + from urlparse import urlparse + +try: + import pkg_resources as pkg +except ImportError: + pkg = None + +#Python 2.6.x +try: + from logging import NullHandler +except ImportError: + from logging import Handler + + class NullHandler(Handler): + def emit(self, record): + pass diff --git a/ddtrace/vendor/dogstatsd/context.py b/ddtrace/vendor/dogstatsd/context.py new file mode 100644 index 0000000000..f4e7a57a86 --- /dev/null +++ b/ddtrace/vendor/dogstatsd/context.py @@ -0,0 +1,79 @@ +# stdlib +from functools import wraps +from time import time + +# datadog +from .compat import ( + is_higher_py35, + iscoroutinefunction, +) + + +if is_higher_py35(): + from .context_async import _get_wrapped_co +else: + def _get_wrapped_co(self, func): + raise NotImplementedError( + u"Decorator `timed` compatibility with coroutine functions" + u" requires Python 3.5 or higher." + ) + + +class TimedContextManagerDecorator(object): + """ + A context manager and a decorator which will report the elapsed time in + the context OR in a function call. + """ + def __init__(self, statsd, metric=None, tags=None, sample_rate=1, use_ms=None): + self.statsd = statsd + self.metric = metric + self.tags = tags + self.sample_rate = sample_rate + self.use_ms = use_ms + self.elapsed = None + + def __call__(self, func): + """ + Decorator which returns the elapsed time of the function call. + + Default to the function name if metric was not provided. + """ + if not self.metric: + self.metric = '%s.%s' % (func.__module__, func.__name__) + + # Coroutines + if iscoroutinefunction(func): + return _get_wrapped_co(self, func) + + # Others + @wraps(func) + def wrapped(*args, **kwargs): + start = time() + try: + return func(*args, **kwargs) + finally: + self._send(start) + return wrapped + + def __enter__(self): + if not self.metric: + raise TypeError("Cannot used timed without a metric!") + self._start = time() + return self + + def __exit__(self, type, value, traceback): + # Report the elapsed time of the context manager. + self._send(self._start) + + def _send(self, start): + elapsed = time() - start + use_ms = self.use_ms if self.use_ms is not None else self.statsd.use_ms + elapsed = int(round(1000 * elapsed)) if use_ms else elapsed + self.statsd.timing(self.metric, elapsed, self.tags, self.sample_rate) + self.elapsed = elapsed + + def start(self): + self.__enter__() + + def stop(self): + self.__exit__(None, None, None) diff --git a/ddtrace/vendor/dogstatsd/context_async.py b/ddtrace/vendor/dogstatsd/context_async.py new file mode 100644 index 0000000000..97debc881f --- /dev/null +++ b/ddtrace/vendor/dogstatsd/context_async.py @@ -0,0 +1,23 @@ +""" +Decorator `timed` for coroutine methods. + +Warning: requires Python 3.5 or higher. +""" +# stdlib +from functools import wraps +from time import time + + +def _get_wrapped_co(self, func): + """ + `timed` wrapper for coroutine methods. + """ + @wraps(func) + async def wrapped_co(*args, **kwargs): + start = time() + try: + result = await func(*args, **kwargs) + return result + finally: + self._send(start) + return wrapped_co diff --git a/ddtrace/vendor/dogstatsd/route.py b/ddtrace/vendor/dogstatsd/route.py new file mode 100644 index 0000000000..59c2396748 --- /dev/null +++ b/ddtrace/vendor/dogstatsd/route.py @@ -0,0 +1,38 @@ +""" +Helper(s), resolve the system's default interface. +""" +# stdlib +import socket +import struct + + +class UnresolvableDefaultRoute(Exception): + """ + Unable to resolve system's default route. + """ + + +def get_default_route(): + """ + Return the system default interface using the proc filesystem. + + Returns: + string: default route + + Raises: + `NotImplementedError`: No proc filesystem is found (non-Linux systems) + `StopIteration`: No default route found + """ + try: + with open('/proc/net/route') as f: + for line in f.readlines(): + fields = line.strip().split() + if fields[1] == '00000000': + return socket.inet_ntoa(struct.pack(' + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +""" +import time + + +__all__ = ('monotonic',) + + +try: + monotonic = time.monotonic +except AttributeError: + import ctypes + import ctypes.util + import os + import sys + import threading + try: + if sys.platform == 'darwin': # OS X, iOS + # See Technical Q&A QA1398 of the Mac Developer Library: + # + libc = ctypes.CDLL('/usr/lib/libc.dylib', use_errno=True) + + class mach_timebase_info_data_t(ctypes.Structure): + """System timebase info. Defined in .""" + _fields_ = (('numer', ctypes.c_uint32), + ('denom', ctypes.c_uint32)) + + mach_absolute_time = libc.mach_absolute_time + mach_absolute_time.restype = ctypes.c_uint64 + + timebase = mach_timebase_info_data_t() + libc.mach_timebase_info(ctypes.byref(timebase)) + ticks_per_second = timebase.numer / timebase.denom * 1.0e9 + + def monotonic(): + """Monotonic clock, cannot go backward.""" + return mach_absolute_time() / ticks_per_second + + elif sys.platform.startswith('win32') or sys.platform.startswith('cygwin'): + if sys.platform.startswith('cygwin'): + # Note: cygwin implements clock_gettime (CLOCK_MONOTONIC = 4) since + # version 1.7.6. Using raw WinAPI for maximum version compatibility. + + # Ugly hack using the wrong calling convention (in 32-bit mode) + # because ctypes has no windll under cygwin (and it also seems that + # the code letting you select stdcall in _ctypes doesn't exist under + # the preprocessor definitions relevant to cygwin). + # This is 'safe' because: + # 1. The ABI of GetTickCount and GetTickCount64 is identical for + # both calling conventions because they both have no parameters. + # 2. libffi masks the problem because after making the call it doesn't + # touch anything through esp and epilogue code restores a correct + # esp from ebp afterwards. + try: + kernel32 = ctypes.cdll.kernel32 + except OSError: # 'No such file or directory' + kernel32 = ctypes.cdll.LoadLibrary('kernel32.dll') + else: + kernel32 = ctypes.windll.kernel32 + + GetTickCount64 = getattr(kernel32, 'GetTickCount64', None) + if GetTickCount64: + # Windows Vista / Windows Server 2008 or newer. + GetTickCount64.restype = ctypes.c_ulonglong + + def monotonic(): + """Monotonic clock, cannot go backward.""" + return GetTickCount64() / 1000.0 + + else: + # Before Windows Vista. + GetTickCount = kernel32.GetTickCount + GetTickCount.restype = ctypes.c_uint32 + + get_tick_count_lock = threading.Lock() + get_tick_count_last_sample = 0 + get_tick_count_wraparounds = 0 + + def monotonic(): + """Monotonic clock, cannot go backward.""" + global get_tick_count_last_sample + global get_tick_count_wraparounds + + with get_tick_count_lock: + current_sample = GetTickCount() + if current_sample < get_tick_count_last_sample: + get_tick_count_wraparounds += 1 + get_tick_count_last_sample = current_sample + + final_milliseconds = get_tick_count_wraparounds << 32 + final_milliseconds += get_tick_count_last_sample + return final_milliseconds / 1000.0 + + else: + try: + clock_gettime = ctypes.CDLL(ctypes.util.find_library('c'), + use_errno=True).clock_gettime + except Exception: + clock_gettime = ctypes.CDLL(ctypes.util.find_library('rt'), + use_errno=True).clock_gettime + + class timespec(ctypes.Structure): + """Time specification, as described in clock_gettime(3).""" + _fields_ = (('tv_sec', ctypes.c_long), + ('tv_nsec', ctypes.c_long)) + + if sys.platform.startswith('linux'): + CLOCK_MONOTONIC = 1 + elif sys.platform.startswith('freebsd'): + CLOCK_MONOTONIC = 4 + elif sys.platform.startswith('sunos5'): + CLOCK_MONOTONIC = 4 + elif 'bsd' in sys.platform: + CLOCK_MONOTONIC = 3 + elif sys.platform.startswith('aix'): + CLOCK_MONOTONIC = ctypes.c_longlong(10) + + def monotonic(): + """Monotonic clock, cannot go backward.""" + ts = timespec() + if clock_gettime(CLOCK_MONOTONIC, ctypes.pointer(ts)): + errno = ctypes.get_errno() + raise OSError(errno, os.strerror(errno)) + return ts.tv_sec + ts.tv_nsec / 1.0e9 + + # Perform a sanity-check. + if monotonic() - monotonic() > 0: + raise ValueError('monotonic() is not monotonic!') + + except Exception as e: + raise RuntimeError('no suitable implementation for this system: ' + repr(e)) \ No newline at end of file diff --git a/ddtrace/vendor/msgpack/__init__.py b/ddtrace/vendor/msgpack/__init__.py new file mode 100644 index 0000000000..4ad9c1a5e1 --- /dev/null +++ b/ddtrace/vendor/msgpack/__init__.py @@ -0,0 +1,65 @@ +# coding: utf-8 +from ._version import version +from .exceptions import * + +from collections import namedtuple + + +class ExtType(namedtuple('ExtType', 'code data')): + """ExtType represents ext type in msgpack.""" + def __new__(cls, code, data): + if not isinstance(code, int): + raise TypeError("code must be int") + if not isinstance(data, bytes): + raise TypeError("data must be bytes") + if not 0 <= code <= 127: + raise ValueError("code must be 0~127") + return super(ExtType, cls).__new__(cls, code, data) + + +import os +if os.environ.get('MSGPACK_PUREPYTHON'): + from .fallback import Packer, unpackb, Unpacker +else: + try: + from ._cmsgpack import Packer, unpackb, Unpacker + except ImportError: + from .fallback import Packer, unpackb, Unpacker + + +def pack(o, stream, **kwargs): + """ + Pack object `o` and write it to `stream` + + See :class:`Packer` for options. + """ + packer = Packer(**kwargs) + stream.write(packer.pack(o)) + + +def packb(o, **kwargs): + """ + Pack object `o` and return packed bytes + + See :class:`Packer` for options. + """ + return Packer(**kwargs).pack(o) + + +def unpack(stream, **kwargs): + """ + Unpack an object from `stream`. + + Raises `ExtraData` when `stream` contains extra bytes. + See :class:`Unpacker` for options. + """ + data = stream.read() + return unpackb(data, **kwargs) + + +# alias for compatibility to simplejson/marshal/pickle. +load = unpack +loads = unpackb + +dump = pack +dumps = packb diff --git a/ddtrace/vendor/msgpack/_cmsgpack.cpp b/ddtrace/vendor/msgpack/_cmsgpack.cpp new file mode 100644 index 0000000000..c5506e4b1b --- /dev/null +++ b/ddtrace/vendor/msgpack/_cmsgpack.cpp @@ -0,0 +1,15777 @@ +/* Generated by Cython 0.29.6 */ + +#define PY_SSIZE_T_CLEAN +#include "Python.h" +#ifndef Py_PYTHON_H + #error Python headers needed to compile C extensions, please install development version of Python. +#elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03030000) + #error Cython requires Python 2.6+ or Python 3.3+. +#else +#define CYTHON_ABI "0_29_6" +#define CYTHON_HEX_VERSION 0x001D06F0 +#define CYTHON_FUTURE_DIVISION 1 +#include +#ifndef offsetof + #define offsetof(type, member) ( (size_t) & ((type*)0) -> member ) +#endif +#if !defined(WIN32) && !defined(MS_WINDOWS) + #ifndef __stdcall + #define __stdcall + #endif + #ifndef __cdecl + #define __cdecl + #endif + #ifndef __fastcall + #define __fastcall + #endif +#endif +#ifndef DL_IMPORT + #define DL_IMPORT(t) t +#endif +#ifndef DL_EXPORT + #define DL_EXPORT(t) t +#endif +#define __PYX_COMMA , +#ifndef HAVE_LONG_LONG + #if PY_VERSION_HEX >= 0x02070000 + #define HAVE_LONG_LONG + #endif +#endif +#ifndef PY_LONG_LONG + #define PY_LONG_LONG LONG_LONG +#endif +#ifndef Py_HUGE_VAL + #define Py_HUGE_VAL HUGE_VAL +#endif +#ifdef PYPY_VERSION + #define CYTHON_COMPILING_IN_PYPY 1 + #define CYTHON_COMPILING_IN_PYSTON 0 + #define CYTHON_COMPILING_IN_CPYTHON 0 + #undef CYTHON_USE_TYPE_SLOTS + #define CYTHON_USE_TYPE_SLOTS 0 + #undef CYTHON_USE_PYTYPE_LOOKUP + #define CYTHON_USE_PYTYPE_LOOKUP 0 + #if PY_VERSION_HEX < 0x03050000 + #undef CYTHON_USE_ASYNC_SLOTS + #define CYTHON_USE_ASYNC_SLOTS 0 + #elif !defined(CYTHON_USE_ASYNC_SLOTS) + #define CYTHON_USE_ASYNC_SLOTS 1 + #endif + #undef CYTHON_USE_PYLIST_INTERNALS + #define CYTHON_USE_PYLIST_INTERNALS 0 + #undef CYTHON_USE_UNICODE_INTERNALS + #define CYTHON_USE_UNICODE_INTERNALS 0 + #undef CYTHON_USE_UNICODE_WRITER + #define CYTHON_USE_UNICODE_WRITER 0 + #undef CYTHON_USE_PYLONG_INTERNALS + #define CYTHON_USE_PYLONG_INTERNALS 0 + #undef CYTHON_AVOID_BORROWED_REFS + #define CYTHON_AVOID_BORROWED_REFS 1 + #undef CYTHON_ASSUME_SAFE_MACROS + #define CYTHON_ASSUME_SAFE_MACROS 0 + #undef CYTHON_UNPACK_METHODS + #define CYTHON_UNPACK_METHODS 0 + #undef CYTHON_FAST_THREAD_STATE + #define CYTHON_FAST_THREAD_STATE 0 + #undef CYTHON_FAST_PYCALL + #define CYTHON_FAST_PYCALL 0 + #undef CYTHON_PEP489_MULTI_PHASE_INIT + #define CYTHON_PEP489_MULTI_PHASE_INIT 0 + #undef CYTHON_USE_TP_FINALIZE + #define CYTHON_USE_TP_FINALIZE 0 + #undef CYTHON_USE_DICT_VERSIONS + #define CYTHON_USE_DICT_VERSIONS 0 + #undef CYTHON_USE_EXC_INFO_STACK + #define CYTHON_USE_EXC_INFO_STACK 0 +#elif defined(PYSTON_VERSION) + #define CYTHON_COMPILING_IN_PYPY 0 + #define CYTHON_COMPILING_IN_PYSTON 1 + #define CYTHON_COMPILING_IN_CPYTHON 0 + #ifndef CYTHON_USE_TYPE_SLOTS + #define CYTHON_USE_TYPE_SLOTS 1 + #endif + #undef CYTHON_USE_PYTYPE_LOOKUP + #define CYTHON_USE_PYTYPE_LOOKUP 0 + #undef CYTHON_USE_ASYNC_SLOTS + #define CYTHON_USE_ASYNC_SLOTS 0 + #undef CYTHON_USE_PYLIST_INTERNALS + #define CYTHON_USE_PYLIST_INTERNALS 0 + #ifndef CYTHON_USE_UNICODE_INTERNALS + #define CYTHON_USE_UNICODE_INTERNALS 1 + #endif + #undef CYTHON_USE_UNICODE_WRITER + #define CYTHON_USE_UNICODE_WRITER 0 + #undef CYTHON_USE_PYLONG_INTERNALS + #define CYTHON_USE_PYLONG_INTERNALS 0 + #ifndef CYTHON_AVOID_BORROWED_REFS + #define CYTHON_AVOID_BORROWED_REFS 0 + #endif + #ifndef CYTHON_ASSUME_SAFE_MACROS + #define CYTHON_ASSUME_SAFE_MACROS 1 + #endif + #ifndef CYTHON_UNPACK_METHODS + #define CYTHON_UNPACK_METHODS 1 + #endif + #undef CYTHON_FAST_THREAD_STATE + #define CYTHON_FAST_THREAD_STATE 0 + #undef CYTHON_FAST_PYCALL + #define CYTHON_FAST_PYCALL 0 + #undef CYTHON_PEP489_MULTI_PHASE_INIT + #define CYTHON_PEP489_MULTI_PHASE_INIT 0 + #undef CYTHON_USE_TP_FINALIZE + #define CYTHON_USE_TP_FINALIZE 0 + #undef CYTHON_USE_DICT_VERSIONS + #define CYTHON_USE_DICT_VERSIONS 0 + #undef CYTHON_USE_EXC_INFO_STACK + #define CYTHON_USE_EXC_INFO_STACK 0 +#else + #define CYTHON_COMPILING_IN_PYPY 0 + #define CYTHON_COMPILING_IN_PYSTON 0 + #define CYTHON_COMPILING_IN_CPYTHON 1 + #ifndef CYTHON_USE_TYPE_SLOTS + #define CYTHON_USE_TYPE_SLOTS 1 + #endif + #if PY_VERSION_HEX < 0x02070000 + #undef CYTHON_USE_PYTYPE_LOOKUP + #define CYTHON_USE_PYTYPE_LOOKUP 0 + #elif !defined(CYTHON_USE_PYTYPE_LOOKUP) + #define CYTHON_USE_PYTYPE_LOOKUP 1 + #endif + #if PY_MAJOR_VERSION < 3 + #undef CYTHON_USE_ASYNC_SLOTS + #define CYTHON_USE_ASYNC_SLOTS 0 + #elif !defined(CYTHON_USE_ASYNC_SLOTS) + #define CYTHON_USE_ASYNC_SLOTS 1 + #endif + #if PY_VERSION_HEX < 0x02070000 + #undef CYTHON_USE_PYLONG_INTERNALS + #define CYTHON_USE_PYLONG_INTERNALS 0 + #elif !defined(CYTHON_USE_PYLONG_INTERNALS) + #define CYTHON_USE_PYLONG_INTERNALS 1 + #endif + #ifndef CYTHON_USE_PYLIST_INTERNALS + #define CYTHON_USE_PYLIST_INTERNALS 1 + #endif + #ifndef CYTHON_USE_UNICODE_INTERNALS + #define CYTHON_USE_UNICODE_INTERNALS 1 + #endif + #if PY_VERSION_HEX < 0x030300F0 + #undef CYTHON_USE_UNICODE_WRITER + #define CYTHON_USE_UNICODE_WRITER 0 + #elif !defined(CYTHON_USE_UNICODE_WRITER) + #define CYTHON_USE_UNICODE_WRITER 1 + #endif + #ifndef CYTHON_AVOID_BORROWED_REFS + #define CYTHON_AVOID_BORROWED_REFS 0 + #endif + #ifndef CYTHON_ASSUME_SAFE_MACROS + #define CYTHON_ASSUME_SAFE_MACROS 1 + #endif + #ifndef CYTHON_UNPACK_METHODS + #define CYTHON_UNPACK_METHODS 1 + #endif + #ifndef CYTHON_FAST_THREAD_STATE + #define CYTHON_FAST_THREAD_STATE 1 + #endif + #ifndef CYTHON_FAST_PYCALL + #define CYTHON_FAST_PYCALL 1 + #endif + #ifndef CYTHON_PEP489_MULTI_PHASE_INIT + #define CYTHON_PEP489_MULTI_PHASE_INIT (PY_VERSION_HEX >= 0x03050000) + #endif + #ifndef CYTHON_USE_TP_FINALIZE + #define CYTHON_USE_TP_FINALIZE (PY_VERSION_HEX >= 0x030400a1) + #endif + #ifndef CYTHON_USE_DICT_VERSIONS + #define CYTHON_USE_DICT_VERSIONS (PY_VERSION_HEX >= 0x030600B1) + #endif + #ifndef CYTHON_USE_EXC_INFO_STACK + #define CYTHON_USE_EXC_INFO_STACK (PY_VERSION_HEX >= 0x030700A3) + #endif +#endif +#if !defined(CYTHON_FAST_PYCCALL) +#define CYTHON_FAST_PYCCALL (CYTHON_FAST_PYCALL && PY_VERSION_HEX >= 0x030600B1) +#endif +#if CYTHON_USE_PYLONG_INTERNALS + #include "longintrepr.h" + #undef SHIFT + #undef BASE + #undef MASK + #ifdef SIZEOF_VOID_P + enum { __pyx_check_sizeof_voidp = 1 / (int)(SIZEOF_VOID_P == sizeof(void*)) }; + #endif +#endif +#ifndef __has_attribute + #define __has_attribute(x) 0 +#endif +#ifndef __has_cpp_attribute + #define __has_cpp_attribute(x) 0 +#endif +#ifndef CYTHON_RESTRICT + #if defined(__GNUC__) + #define CYTHON_RESTRICT __restrict__ + #elif defined(_MSC_VER) && _MSC_VER >= 1400 + #define CYTHON_RESTRICT __restrict + #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L + #define CYTHON_RESTRICT restrict + #else + #define CYTHON_RESTRICT + #endif +#endif +#ifndef CYTHON_UNUSED +# if defined(__GNUC__) +# if !(defined(__cplusplus)) || (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)) +# define CYTHON_UNUSED __attribute__ ((__unused__)) +# else +# define CYTHON_UNUSED +# endif +# elif defined(__ICC) || (defined(__INTEL_COMPILER) && !defined(_MSC_VER)) +# define CYTHON_UNUSED __attribute__ ((__unused__)) +# else +# define CYTHON_UNUSED +# endif +#endif +#ifndef CYTHON_MAYBE_UNUSED_VAR +# if defined(__cplusplus) + template void CYTHON_MAYBE_UNUSED_VAR( const T& ) { } +# else +# define CYTHON_MAYBE_UNUSED_VAR(x) (void)(x) +# endif +#endif +#ifndef CYTHON_NCP_UNUSED +# if CYTHON_COMPILING_IN_CPYTHON +# define CYTHON_NCP_UNUSED +# else +# define CYTHON_NCP_UNUSED CYTHON_UNUSED +# endif +#endif +#define __Pyx_void_to_None(void_result) ((void)(void_result), Py_INCREF(Py_None), Py_None) +#ifdef _MSC_VER + #ifndef _MSC_STDINT_H_ + #if _MSC_VER < 1300 + typedef unsigned char uint8_t; + typedef unsigned int uint32_t; + #else + typedef unsigned __int8 uint8_t; + typedef unsigned __int32 uint32_t; + #endif + #endif +#else + #include +#endif +#ifndef CYTHON_FALLTHROUGH + #if defined(__cplusplus) && __cplusplus >= 201103L + #if __has_cpp_attribute(fallthrough) + #define CYTHON_FALLTHROUGH [[fallthrough]] + #elif __has_cpp_attribute(clang::fallthrough) + #define CYTHON_FALLTHROUGH [[clang::fallthrough]] + #elif __has_cpp_attribute(gnu::fallthrough) + #define CYTHON_FALLTHROUGH [[gnu::fallthrough]] + #endif + #endif + #ifndef CYTHON_FALLTHROUGH + #if __has_attribute(fallthrough) + #define CYTHON_FALLTHROUGH __attribute__((fallthrough)) + #else + #define CYTHON_FALLTHROUGH + #endif + #endif + #if defined(__clang__ ) && defined(__apple_build_version__) + #if __apple_build_version__ < 7000000 + #undef CYTHON_FALLTHROUGH + #define CYTHON_FALLTHROUGH + #endif + #endif +#endif + +#ifndef __cplusplus + #error "Cython files generated with the C++ option must be compiled with a C++ compiler." +#endif +#ifndef CYTHON_INLINE + #if defined(__clang__) + #define CYTHON_INLINE __inline__ __attribute__ ((__unused__)) + #else + #define CYTHON_INLINE inline + #endif +#endif +template +void __Pyx_call_destructor(T& x) { + x.~T(); +} +template +class __Pyx_FakeReference { + public: + __Pyx_FakeReference() : ptr(NULL) { } + __Pyx_FakeReference(const T& ref) : ptr(const_cast(&ref)) { } + T *operator->() { return ptr; } + T *operator&() { return ptr; } + operator T&() { return *ptr; } + template bool operator ==(U other) { return *ptr == other; } + template bool operator !=(U other) { return *ptr != other; } + private: + T *ptr; +}; + +#if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX < 0x02070600 && !defined(Py_OptimizeFlag) + #define Py_OptimizeFlag 0 +#endif +#define __PYX_BUILD_PY_SSIZE_T "n" +#define CYTHON_FORMAT_SSIZE_T "z" +#if PY_MAJOR_VERSION < 3 + #define __Pyx_BUILTIN_MODULE_NAME "__builtin__" + #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\ + PyCode_New(a+k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos) + #define __Pyx_DefaultClassType PyClass_Type +#else + #define __Pyx_BUILTIN_MODULE_NAME "builtins" + #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\ + PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos) + #define __Pyx_DefaultClassType PyType_Type +#endif +#ifndef Py_TPFLAGS_CHECKTYPES + #define Py_TPFLAGS_CHECKTYPES 0 +#endif +#ifndef Py_TPFLAGS_HAVE_INDEX + #define Py_TPFLAGS_HAVE_INDEX 0 +#endif +#ifndef Py_TPFLAGS_HAVE_NEWBUFFER + #define Py_TPFLAGS_HAVE_NEWBUFFER 0 +#endif +#ifndef Py_TPFLAGS_HAVE_FINALIZE + #define Py_TPFLAGS_HAVE_FINALIZE 0 +#endif +#ifndef METH_STACKLESS + #define METH_STACKLESS 0 +#endif +#if PY_VERSION_HEX <= 0x030700A3 || !defined(METH_FASTCALL) + #ifndef METH_FASTCALL + #define METH_FASTCALL 0x80 + #endif + typedef PyObject *(*__Pyx_PyCFunctionFast) (PyObject *self, PyObject *const *args, Py_ssize_t nargs); + typedef PyObject *(*__Pyx_PyCFunctionFastWithKeywords) (PyObject *self, PyObject *const *args, + Py_ssize_t nargs, PyObject *kwnames); +#else + #define __Pyx_PyCFunctionFast _PyCFunctionFast + #define __Pyx_PyCFunctionFastWithKeywords _PyCFunctionFastWithKeywords +#endif +#if CYTHON_FAST_PYCCALL +#define __Pyx_PyFastCFunction_Check(func)\ + ((PyCFunction_Check(func) && (METH_FASTCALL == (PyCFunction_GET_FLAGS(func) & ~(METH_CLASS | METH_STATIC | METH_COEXIST | METH_KEYWORDS | METH_STACKLESS))))) +#else +#define __Pyx_PyFastCFunction_Check(func) 0 +#endif +#if CYTHON_COMPILING_IN_PYPY && !defined(PyObject_Malloc) + #define PyObject_Malloc(s) PyMem_Malloc(s) + #define PyObject_Free(p) PyMem_Free(p) + #define PyObject_Realloc(p) PyMem_Realloc(p) +#endif +#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX < 0x030400A1 + #define PyMem_RawMalloc(n) PyMem_Malloc(n) + #define PyMem_RawRealloc(p, n) PyMem_Realloc(p, n) + #define PyMem_RawFree(p) PyMem_Free(p) +#endif +#if CYTHON_COMPILING_IN_PYSTON + #define __Pyx_PyCode_HasFreeVars(co) PyCode_HasFreeVars(co) + #define __Pyx_PyFrame_SetLineNumber(frame, lineno) PyFrame_SetLineNumber(frame, lineno) +#else + #define __Pyx_PyCode_HasFreeVars(co) (PyCode_GetNumFree(co) > 0) + #define __Pyx_PyFrame_SetLineNumber(frame, lineno) (frame)->f_lineno = (lineno) +#endif +#if !CYTHON_FAST_THREAD_STATE || PY_VERSION_HEX < 0x02070000 + #define __Pyx_PyThreadState_Current PyThreadState_GET() +#elif PY_VERSION_HEX >= 0x03060000 + #define __Pyx_PyThreadState_Current _PyThreadState_UncheckedGet() +#elif PY_VERSION_HEX >= 0x03000000 + #define __Pyx_PyThreadState_Current PyThreadState_GET() +#else + #define __Pyx_PyThreadState_Current _PyThreadState_Current +#endif +#if PY_VERSION_HEX < 0x030700A2 && !defined(PyThread_tss_create) && !defined(Py_tss_NEEDS_INIT) +#include "pythread.h" +#define Py_tss_NEEDS_INIT 0 +typedef int Py_tss_t; +static CYTHON_INLINE int PyThread_tss_create(Py_tss_t *key) { + *key = PyThread_create_key(); + return 0; +} +static CYTHON_INLINE Py_tss_t * PyThread_tss_alloc(void) { + Py_tss_t *key = (Py_tss_t *)PyObject_Malloc(sizeof(Py_tss_t)); + *key = Py_tss_NEEDS_INIT; + return key; +} +static CYTHON_INLINE void PyThread_tss_free(Py_tss_t *key) { + PyObject_Free(key); +} +static CYTHON_INLINE int PyThread_tss_is_created(Py_tss_t *key) { + return *key != Py_tss_NEEDS_INIT; +} +static CYTHON_INLINE void PyThread_tss_delete(Py_tss_t *key) { + PyThread_delete_key(*key); + *key = Py_tss_NEEDS_INIT; +} +static CYTHON_INLINE int PyThread_tss_set(Py_tss_t *key, void *value) { + return PyThread_set_key_value(*key, value); +} +static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) { + return PyThread_get_key_value(*key); +} +#endif +#if CYTHON_COMPILING_IN_CPYTHON || defined(_PyDict_NewPresized) +#define __Pyx_PyDict_NewPresized(n) ((n <= 8) ? PyDict_New() : _PyDict_NewPresized(n)) +#else +#define __Pyx_PyDict_NewPresized(n) PyDict_New() +#endif +#if PY_MAJOR_VERSION >= 3 || CYTHON_FUTURE_DIVISION + #define __Pyx_PyNumber_Divide(x,y) PyNumber_TrueDivide(x,y) + #define __Pyx_PyNumber_InPlaceDivide(x,y) PyNumber_InPlaceTrueDivide(x,y) +#else + #define __Pyx_PyNumber_Divide(x,y) PyNumber_Divide(x,y) + #define __Pyx_PyNumber_InPlaceDivide(x,y) PyNumber_InPlaceDivide(x,y) +#endif +#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030500A1 && CYTHON_USE_UNICODE_INTERNALS +#define __Pyx_PyDict_GetItemStr(dict, name) _PyDict_GetItem_KnownHash(dict, name, ((PyASCIIObject *) name)->hash) +#else +#define __Pyx_PyDict_GetItemStr(dict, name) PyDict_GetItem(dict, name) +#endif +#if PY_VERSION_HEX > 0x03030000 && defined(PyUnicode_KIND) + #define CYTHON_PEP393_ENABLED 1 + #define __Pyx_PyUnicode_READY(op) (likely(PyUnicode_IS_READY(op)) ?\ + 0 : _PyUnicode_Ready((PyObject *)(op))) + #define __Pyx_PyUnicode_GET_LENGTH(u) PyUnicode_GET_LENGTH(u) + #define __Pyx_PyUnicode_READ_CHAR(u, i) PyUnicode_READ_CHAR(u, i) + #define __Pyx_PyUnicode_MAX_CHAR_VALUE(u) PyUnicode_MAX_CHAR_VALUE(u) + #define __Pyx_PyUnicode_KIND(u) PyUnicode_KIND(u) + #define __Pyx_PyUnicode_DATA(u) PyUnicode_DATA(u) + #define __Pyx_PyUnicode_READ(k, d, i) PyUnicode_READ(k, d, i) + #define __Pyx_PyUnicode_WRITE(k, d, i, ch) PyUnicode_WRITE(k, d, i, ch) + #define __Pyx_PyUnicode_IS_TRUE(u) (0 != (likely(PyUnicode_IS_READY(u)) ? PyUnicode_GET_LENGTH(u) : PyUnicode_GET_SIZE(u))) +#else + #define CYTHON_PEP393_ENABLED 0 + #define PyUnicode_1BYTE_KIND 1 + #define PyUnicode_2BYTE_KIND 2 + #define PyUnicode_4BYTE_KIND 4 + #define __Pyx_PyUnicode_READY(op) (0) + #define __Pyx_PyUnicode_GET_LENGTH(u) PyUnicode_GET_SIZE(u) + #define __Pyx_PyUnicode_READ_CHAR(u, i) ((Py_UCS4)(PyUnicode_AS_UNICODE(u)[i])) + #define __Pyx_PyUnicode_MAX_CHAR_VALUE(u) ((sizeof(Py_UNICODE) == 2) ? 65535 : 1114111) + #define __Pyx_PyUnicode_KIND(u) (sizeof(Py_UNICODE)) + #define __Pyx_PyUnicode_DATA(u) ((void*)PyUnicode_AS_UNICODE(u)) + #define __Pyx_PyUnicode_READ(k, d, i) ((void)(k), (Py_UCS4)(((Py_UNICODE*)d)[i])) + #define __Pyx_PyUnicode_WRITE(k, d, i, ch) (((void)(k)), ((Py_UNICODE*)d)[i] = ch) + #define __Pyx_PyUnicode_IS_TRUE(u) (0 != PyUnicode_GET_SIZE(u)) +#endif +#if CYTHON_COMPILING_IN_PYPY + #define __Pyx_PyUnicode_Concat(a, b) PyNumber_Add(a, b) + #define __Pyx_PyUnicode_ConcatSafe(a, b) PyNumber_Add(a, b) +#else + #define __Pyx_PyUnicode_Concat(a, b) PyUnicode_Concat(a, b) + #define __Pyx_PyUnicode_ConcatSafe(a, b) ((unlikely((a) == Py_None) || unlikely((b) == Py_None)) ?\ + PyNumber_Add(a, b) : __Pyx_PyUnicode_Concat(a, b)) +#endif +#if CYTHON_COMPILING_IN_PYPY && !defined(PyUnicode_Contains) + #define PyUnicode_Contains(u, s) PySequence_Contains(u, s) +#endif +#if CYTHON_COMPILING_IN_PYPY && !defined(PyByteArray_Check) + #define PyByteArray_Check(obj) PyObject_TypeCheck(obj, &PyByteArray_Type) +#endif +#if CYTHON_COMPILING_IN_PYPY && !defined(PyObject_Format) + #define PyObject_Format(obj, fmt) PyObject_CallMethod(obj, "__format__", "O", fmt) +#endif +#define __Pyx_PyString_FormatSafe(a, b) ((unlikely((a) == Py_None || (PyString_Check(b) && !PyString_CheckExact(b)))) ? PyNumber_Remainder(a, b) : __Pyx_PyString_Format(a, b)) +#define __Pyx_PyUnicode_FormatSafe(a, b) ((unlikely((a) == Py_None || (PyUnicode_Check(b) && !PyUnicode_CheckExact(b)))) ? PyNumber_Remainder(a, b) : PyUnicode_Format(a, b)) +#if PY_MAJOR_VERSION >= 3 + #define __Pyx_PyString_Format(a, b) PyUnicode_Format(a, b) +#else + #define __Pyx_PyString_Format(a, b) PyString_Format(a, b) +#endif +#if PY_MAJOR_VERSION < 3 && !defined(PyObject_ASCII) + #define PyObject_ASCII(o) PyObject_Repr(o) +#endif +#if PY_MAJOR_VERSION >= 3 + #define PyBaseString_Type PyUnicode_Type + #define PyStringObject PyUnicodeObject + #define PyString_Type PyUnicode_Type + #define PyString_Check PyUnicode_Check + #define PyString_CheckExact PyUnicode_CheckExact + #define PyObject_Unicode PyObject_Str +#endif +#if PY_MAJOR_VERSION >= 3 + #define __Pyx_PyBaseString_Check(obj) PyUnicode_Check(obj) + #define __Pyx_PyBaseString_CheckExact(obj) PyUnicode_CheckExact(obj) +#else + #define __Pyx_PyBaseString_Check(obj) (PyString_Check(obj) || PyUnicode_Check(obj)) + #define __Pyx_PyBaseString_CheckExact(obj) (PyString_CheckExact(obj) || PyUnicode_CheckExact(obj)) +#endif +#ifndef PySet_CheckExact + #define PySet_CheckExact(obj) (Py_TYPE(obj) == &PySet_Type) +#endif +#if CYTHON_ASSUME_SAFE_MACROS + #define __Pyx_PySequence_SIZE(seq) Py_SIZE(seq) +#else + #define __Pyx_PySequence_SIZE(seq) PySequence_Size(seq) +#endif +#if PY_MAJOR_VERSION >= 3 + #define PyIntObject PyLongObject + #define PyInt_Type PyLong_Type + #define PyInt_Check(op) PyLong_Check(op) + #define PyInt_CheckExact(op) PyLong_CheckExact(op) + #define PyInt_FromString PyLong_FromString + #define PyInt_FromUnicode PyLong_FromUnicode + #define PyInt_FromLong PyLong_FromLong + #define PyInt_FromSize_t PyLong_FromSize_t + #define PyInt_FromSsize_t PyLong_FromSsize_t + #define PyInt_AsLong PyLong_AsLong + #define PyInt_AS_LONG PyLong_AS_LONG + #define PyInt_AsSsize_t PyLong_AsSsize_t + #define PyInt_AsUnsignedLongMask PyLong_AsUnsignedLongMask + #define PyInt_AsUnsignedLongLongMask PyLong_AsUnsignedLongLongMask + #define PyNumber_Int PyNumber_Long +#endif +#if PY_MAJOR_VERSION >= 3 + #define PyBoolObject PyLongObject +#endif +#if PY_MAJOR_VERSION >= 3 && CYTHON_COMPILING_IN_PYPY + #ifndef PyUnicode_InternFromString + #define PyUnicode_InternFromString(s) PyUnicode_FromString(s) + #endif +#endif +#if PY_VERSION_HEX < 0x030200A4 + typedef long Py_hash_t; + #define __Pyx_PyInt_FromHash_t PyInt_FromLong + #define __Pyx_PyInt_AsHash_t PyInt_AsLong +#else + #define __Pyx_PyInt_FromHash_t PyInt_FromSsize_t + #define __Pyx_PyInt_AsHash_t PyInt_AsSsize_t +#endif +#if PY_MAJOR_VERSION >= 3 + #define __Pyx_PyMethod_New(func, self, klass) ((self) ? PyMethod_New(func, self) : (Py_INCREF(func), func)) +#else + #define __Pyx_PyMethod_New(func, self, klass) PyMethod_New(func, self, klass) +#endif +#if CYTHON_USE_ASYNC_SLOTS + #if PY_VERSION_HEX >= 0x030500B1 + #define __Pyx_PyAsyncMethodsStruct PyAsyncMethods + #define __Pyx_PyType_AsAsync(obj) (Py_TYPE(obj)->tp_as_async) + #else + #define __Pyx_PyType_AsAsync(obj) ((__Pyx_PyAsyncMethodsStruct*) (Py_TYPE(obj)->tp_reserved)) + #endif +#else + #define __Pyx_PyType_AsAsync(obj) NULL +#endif +#ifndef __Pyx_PyAsyncMethodsStruct + typedef struct { + unaryfunc am_await; + unaryfunc am_aiter; + unaryfunc am_anext; + } __Pyx_PyAsyncMethodsStruct; +#endif + +#if defined(WIN32) || defined(MS_WINDOWS) + #define _USE_MATH_DEFINES +#endif +#include +#ifdef NAN +#define __PYX_NAN() ((float) NAN) +#else +static CYTHON_INLINE float __PYX_NAN() { + float value; + memset(&value, 0xFF, sizeof(value)); + return value; +} +#endif +#if defined(__CYGWIN__) && defined(_LDBL_EQ_DBL) +#define __Pyx_truncl trunc +#else +#define __Pyx_truncl truncl +#endif + + +#define __PYX_ERR(f_index, lineno, Ln_error) \ +{ \ + __pyx_filename = __pyx_f[f_index]; __pyx_lineno = lineno; __pyx_clineno = __LINE__; goto Ln_error; \ +} + +#ifndef __PYX_EXTERN_C + #ifdef __cplusplus + #define __PYX_EXTERN_C extern "C" + #else + #define __PYX_EXTERN_C extern + #endif +#endif + +#define __PYX_HAVE__msgpack___cmsgpack +#define __PYX_HAVE_API__msgpack___cmsgpack +/* Early includes */ +#include +#include +#include "pythread.h" +#include "pack.h" +#include "buff_converter.h" +#include +#include +#include "unpack.h" +#ifdef _OPENMP +#include +#endif /* _OPENMP */ + +#if defined(PYREX_WITHOUT_ASSERTIONS) && !defined(CYTHON_WITHOUT_ASSERTIONS) +#define CYTHON_WITHOUT_ASSERTIONS +#endif + +typedef struct {PyObject **p; const char *s; const Py_ssize_t n; const char* encoding; + const char is_unicode; const char is_str; const char intern; } __Pyx_StringTabEntry; + +#define __PYX_DEFAULT_STRING_ENCODING_IS_ASCII 1 +#define __PYX_DEFAULT_STRING_ENCODING_IS_UTF8 0 +#define __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT (PY_MAJOR_VERSION >= 3 && __PYX_DEFAULT_STRING_ENCODING_IS_UTF8) +#define __PYX_DEFAULT_STRING_ENCODING "ascii" +#define __Pyx_PyObject_FromString __Pyx_PyBytes_FromString +#define __Pyx_PyObject_FromStringAndSize __Pyx_PyBytes_FromStringAndSize +#define __Pyx_uchar_cast(c) ((unsigned char)c) +#define __Pyx_long_cast(x) ((long)x) +#define __Pyx_fits_Py_ssize_t(v, type, is_signed) (\ + (sizeof(type) < sizeof(Py_ssize_t)) ||\ + (sizeof(type) > sizeof(Py_ssize_t) &&\ + likely(v < (type)PY_SSIZE_T_MAX ||\ + v == (type)PY_SSIZE_T_MAX) &&\ + (!is_signed || likely(v > (type)PY_SSIZE_T_MIN ||\ + v == (type)PY_SSIZE_T_MIN))) ||\ + (sizeof(type) == sizeof(Py_ssize_t) &&\ + (is_signed || likely(v < (type)PY_SSIZE_T_MAX ||\ + v == (type)PY_SSIZE_T_MAX))) ) +static CYTHON_INLINE int __Pyx_is_valid_index(Py_ssize_t i, Py_ssize_t limit) { + return (size_t) i < (size_t) limit; +} +#if defined (__cplusplus) && __cplusplus >= 201103L + #include + #define __Pyx_sst_abs(value) std::abs(value) +#elif SIZEOF_INT >= SIZEOF_SIZE_T + #define __Pyx_sst_abs(value) abs(value) +#elif SIZEOF_LONG >= SIZEOF_SIZE_T + #define __Pyx_sst_abs(value) labs(value) +#elif defined (_MSC_VER) + #define __Pyx_sst_abs(value) ((Py_ssize_t)_abs64(value)) +#elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L + #define __Pyx_sst_abs(value) llabs(value) +#elif defined (__GNUC__) + #define __Pyx_sst_abs(value) __builtin_llabs(value) +#else + #define __Pyx_sst_abs(value) ((value<0) ? -value : value) +#endif +static CYTHON_INLINE const char* __Pyx_PyObject_AsString(PyObject*); +static CYTHON_INLINE const char* __Pyx_PyObject_AsStringAndSize(PyObject*, Py_ssize_t* length); +#define __Pyx_PyByteArray_FromString(s) PyByteArray_FromStringAndSize((const char*)s, strlen((const char*)s)) +#define __Pyx_PyByteArray_FromStringAndSize(s, l) PyByteArray_FromStringAndSize((const char*)s, l) +#define __Pyx_PyBytes_FromString PyBytes_FromString +#define __Pyx_PyBytes_FromStringAndSize PyBytes_FromStringAndSize +static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char*); +#if PY_MAJOR_VERSION < 3 + #define __Pyx_PyStr_FromString __Pyx_PyBytes_FromString + #define __Pyx_PyStr_FromStringAndSize __Pyx_PyBytes_FromStringAndSize +#else + #define __Pyx_PyStr_FromString __Pyx_PyUnicode_FromString + #define __Pyx_PyStr_FromStringAndSize __Pyx_PyUnicode_FromStringAndSize +#endif +#define __Pyx_PyBytes_AsWritableString(s) ((char*) PyBytes_AS_STRING(s)) +#define __Pyx_PyBytes_AsWritableSString(s) ((signed char*) PyBytes_AS_STRING(s)) +#define __Pyx_PyBytes_AsWritableUString(s) ((unsigned char*) PyBytes_AS_STRING(s)) +#define __Pyx_PyBytes_AsString(s) ((const char*) PyBytes_AS_STRING(s)) +#define __Pyx_PyBytes_AsSString(s) ((const signed char*) PyBytes_AS_STRING(s)) +#define __Pyx_PyBytes_AsUString(s) ((const unsigned char*) PyBytes_AS_STRING(s)) +#define __Pyx_PyObject_AsWritableString(s) ((char*) __Pyx_PyObject_AsString(s)) +#define __Pyx_PyObject_AsWritableSString(s) ((signed char*) __Pyx_PyObject_AsString(s)) +#define __Pyx_PyObject_AsWritableUString(s) ((unsigned char*) __Pyx_PyObject_AsString(s)) +#define __Pyx_PyObject_AsSString(s) ((const signed char*) __Pyx_PyObject_AsString(s)) +#define __Pyx_PyObject_AsUString(s) ((const unsigned char*) __Pyx_PyObject_AsString(s)) +#define __Pyx_PyObject_FromCString(s) __Pyx_PyObject_FromString((const char*)s) +#define __Pyx_PyBytes_FromCString(s) __Pyx_PyBytes_FromString((const char*)s) +#define __Pyx_PyByteArray_FromCString(s) __Pyx_PyByteArray_FromString((const char*)s) +#define __Pyx_PyStr_FromCString(s) __Pyx_PyStr_FromString((const char*)s) +#define __Pyx_PyUnicode_FromCString(s) __Pyx_PyUnicode_FromString((const char*)s) +static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const Py_UNICODE *u) { + const Py_UNICODE *u_end = u; + while (*u_end++) ; + return (size_t)(u_end - u - 1); +} +#define __Pyx_PyUnicode_FromUnicode(u) PyUnicode_FromUnicode(u, __Pyx_Py_UNICODE_strlen(u)) +#define __Pyx_PyUnicode_FromUnicodeAndLength PyUnicode_FromUnicode +#define __Pyx_PyUnicode_AsUnicode PyUnicode_AsUnicode +#define __Pyx_NewRef(obj) (Py_INCREF(obj), obj) +#define __Pyx_Owned_Py_None(b) __Pyx_NewRef(Py_None) +static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b); +static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject*); +static CYTHON_INLINE int __Pyx_PyObject_IsTrueAndDecref(PyObject*); +static CYTHON_INLINE PyObject* __Pyx_PyNumber_IntOrLong(PyObject* x); +#define __Pyx_PySequence_Tuple(obj)\ + (likely(PyTuple_CheckExact(obj)) ? __Pyx_NewRef(obj) : PySequence_Tuple(obj)) +static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject*); +static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t); +#if CYTHON_ASSUME_SAFE_MACROS +#define __pyx_PyFloat_AsDouble(x) (PyFloat_CheckExact(x) ? PyFloat_AS_DOUBLE(x) : PyFloat_AsDouble(x)) +#else +#define __pyx_PyFloat_AsDouble(x) PyFloat_AsDouble(x) +#endif +#define __pyx_PyFloat_AsFloat(x) ((float) __pyx_PyFloat_AsDouble(x)) +#if PY_MAJOR_VERSION >= 3 +#define __Pyx_PyNumber_Int(x) (PyLong_CheckExact(x) ? __Pyx_NewRef(x) : PyNumber_Long(x)) +#else +#define __Pyx_PyNumber_Int(x) (PyInt_CheckExact(x) ? __Pyx_NewRef(x) : PyNumber_Int(x)) +#endif +#define __Pyx_PyNumber_Float(x) (PyFloat_CheckExact(x) ? __Pyx_NewRef(x) : PyNumber_Float(x)) +#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII +static int __Pyx_sys_getdefaultencoding_not_ascii; +static int __Pyx_init_sys_getdefaultencoding_params(void) { + PyObject* sys; + PyObject* default_encoding = NULL; + PyObject* ascii_chars_u = NULL; + PyObject* ascii_chars_b = NULL; + const char* default_encoding_c; + sys = PyImport_ImportModule("sys"); + if (!sys) goto bad; + default_encoding = PyObject_CallMethod(sys, (char*) "getdefaultencoding", NULL); + Py_DECREF(sys); + if (!default_encoding) goto bad; + default_encoding_c = PyBytes_AsString(default_encoding); + if (!default_encoding_c) goto bad; + if (strcmp(default_encoding_c, "ascii") == 0) { + __Pyx_sys_getdefaultencoding_not_ascii = 0; + } else { + char ascii_chars[128]; + int c; + for (c = 0; c < 128; c++) { + ascii_chars[c] = c; + } + __Pyx_sys_getdefaultencoding_not_ascii = 1; + ascii_chars_u = PyUnicode_DecodeASCII(ascii_chars, 128, NULL); + if (!ascii_chars_u) goto bad; + ascii_chars_b = PyUnicode_AsEncodedString(ascii_chars_u, default_encoding_c, NULL); + if (!ascii_chars_b || !PyBytes_Check(ascii_chars_b) || memcmp(ascii_chars, PyBytes_AS_STRING(ascii_chars_b), 128) != 0) { + PyErr_Format( + PyExc_ValueError, + "This module compiled with c_string_encoding=ascii, but default encoding '%.200s' is not a superset of ascii.", + default_encoding_c); + goto bad; + } + Py_DECREF(ascii_chars_u); + Py_DECREF(ascii_chars_b); + } + Py_DECREF(default_encoding); + return 0; +bad: + Py_XDECREF(default_encoding); + Py_XDECREF(ascii_chars_u); + Py_XDECREF(ascii_chars_b); + return -1; +} +#endif +#if __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT && PY_MAJOR_VERSION >= 3 +#define __Pyx_PyUnicode_FromStringAndSize(c_str, size) PyUnicode_DecodeUTF8(c_str, size, NULL) +#else +#define __Pyx_PyUnicode_FromStringAndSize(c_str, size) PyUnicode_Decode(c_str, size, __PYX_DEFAULT_STRING_ENCODING, NULL) +#if __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT +static char* __PYX_DEFAULT_STRING_ENCODING; +static int __Pyx_init_sys_getdefaultencoding_params(void) { + PyObject* sys; + PyObject* default_encoding = NULL; + char* default_encoding_c; + sys = PyImport_ImportModule("sys"); + if (!sys) goto bad; + default_encoding = PyObject_CallMethod(sys, (char*) (const char*) "getdefaultencoding", NULL); + Py_DECREF(sys); + if (!default_encoding) goto bad; + default_encoding_c = PyBytes_AsString(default_encoding); + if (!default_encoding_c) goto bad; + __PYX_DEFAULT_STRING_ENCODING = (char*) malloc(strlen(default_encoding_c) + 1); + if (!__PYX_DEFAULT_STRING_ENCODING) goto bad; + strcpy(__PYX_DEFAULT_STRING_ENCODING, default_encoding_c); + Py_DECREF(default_encoding); + return 0; +bad: + Py_XDECREF(default_encoding); + return -1; +} +#endif +#endif + + +/* Test for GCC > 2.95 */ +#if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && (__GNUC_MINOR__ > 95))) + #define likely(x) __builtin_expect(!!(x), 1) + #define unlikely(x) __builtin_expect(!!(x), 0) +#else /* !__GNUC__ or GCC < 2.95 */ + #define likely(x) (x) + #define unlikely(x) (x) +#endif /* __GNUC__ */ +static CYTHON_INLINE void __Pyx_pretend_to_initialize(void* ptr) { (void)ptr; } + +static PyObject *__pyx_m = NULL; +static PyObject *__pyx_d; +static PyObject *__pyx_b; +static PyObject *__pyx_cython_runtime = NULL; +static PyObject *__pyx_empty_tuple; +static PyObject *__pyx_empty_bytes; +static PyObject *__pyx_empty_unicode; +static int __pyx_lineno; +static int __pyx_clineno = 0; +static const char * __pyx_cfilenm= __FILE__; +static const char *__pyx_filename; + + +static const char *__pyx_f[] = { + "msgpack/_packer.pyx", + "msgpack/_unpacker.pyx", + "stringsource", + "msgpack/_cmsgpack.pyx", + "type.pxd", + "bool.pxd", + "complex.pxd", +}; + +/* "msgpack/_unpacker.pyx":13 + * from libc.string cimport * + * from libc.limits cimport * + * ctypedef unsigned long long uint64_t # <<<<<<<<<<<<<< + * + * from ddtrace.vendor.msgpack.exceptions import ( + */ +typedef unsigned PY_LONG_LONG __pyx_t_7msgpack_9_cmsgpack_uint64_t; + +/*--- Type declarations ---*/ +struct __pyx_obj_7msgpack_9_cmsgpack_Packer; +struct __pyx_obj_7msgpack_9_cmsgpack_Unpacker; +struct __pyx_opt_args_7msgpack_9_cmsgpack_6Packer__pack; +struct __pyx_opt_args_7msgpack_9_cmsgpack_8Unpacker__unpack; + +/* "msgpack/_packer.pyx":148 + * self.pk.buf = NULL + * + * cdef int _pack(self, object o, int nest_limit=DEFAULT_RECURSE_LIMIT) except -1: # <<<<<<<<<<<<<< + * cdef long long llval + * cdef unsigned long long ullval + */ +struct __pyx_opt_args_7msgpack_9_cmsgpack_6Packer__pack { + int __pyx_n; + int nest_limit; +}; + +/* "msgpack/_unpacker.pyx":477 + * self.file_like = None + * + * cdef object _unpack(self, execute_fn execute, bint iter=0): # <<<<<<<<<<<<<< + * cdef int ret + * cdef object obj + */ +struct __pyx_opt_args_7msgpack_9_cmsgpack_8Unpacker__unpack { + int __pyx_n; + int iter; +}; + +/* "msgpack/_packer.pyx":54 + * + * + * cdef class Packer(object): # <<<<<<<<<<<<<< + * """ + * MessagePack Packer + */ +struct __pyx_obj_7msgpack_9_cmsgpack_Packer { + PyObject_HEAD + struct __pyx_vtabstruct_7msgpack_9_cmsgpack_Packer *__pyx_vtab; + struct msgpack_packer pk; + PyObject *_default; + PyObject *_bencoding; + PyObject *_berrors; + char const *encoding; + char const *unicode_errors; + int strict_types; + PyBoolObject *use_float; + int autoreset; +}; + + +/* "msgpack/_unpacker.pyx":229 + * + * + * cdef class Unpacker(object): # <<<<<<<<<<<<<< + * """Streaming unpacker. + * + */ +struct __pyx_obj_7msgpack_9_cmsgpack_Unpacker { + PyObject_HEAD + struct __pyx_vtabstruct_7msgpack_9_cmsgpack_Unpacker *__pyx_vtab; + unpack_context ctx; + char *buf; + Py_ssize_t buf_size; + Py_ssize_t buf_head; + Py_ssize_t buf_tail; + PyObject *file_like; + PyObject *file_like_read; + Py_ssize_t read_size; + PyObject *object_hook; + PyObject *object_pairs_hook; + PyObject *list_hook; + PyObject *ext_hook; + PyObject *encoding; + PyObject *unicode_errors; + Py_ssize_t max_buffer_size; + __pyx_t_7msgpack_9_cmsgpack_uint64_t stream_offset; +}; + + + +/* "msgpack/_packer.pyx":54 + * + * + * cdef class Packer(object): # <<<<<<<<<<<<<< + * """ + * MessagePack Packer + */ + +struct __pyx_vtabstruct_7msgpack_9_cmsgpack_Packer { + int (*_pack)(struct __pyx_obj_7msgpack_9_cmsgpack_Packer *, PyObject *, struct __pyx_opt_args_7msgpack_9_cmsgpack_6Packer__pack *__pyx_optional_args); + PyObject *(*pack)(struct __pyx_obj_7msgpack_9_cmsgpack_Packer *, PyObject *, int __pyx_skip_dispatch); +}; +static struct __pyx_vtabstruct_7msgpack_9_cmsgpack_Packer *__pyx_vtabptr_7msgpack_9_cmsgpack_Packer; + + +/* "msgpack/_unpacker.pyx":229 + * + * + * cdef class Unpacker(object): # <<<<<<<<<<<<<< + * """Streaming unpacker. + * + */ + +struct __pyx_vtabstruct_7msgpack_9_cmsgpack_Unpacker { + PyObject *(*append_buffer)(struct __pyx_obj_7msgpack_9_cmsgpack_Unpacker *, void *, Py_ssize_t); + PyObject *(*read_from_file)(struct __pyx_obj_7msgpack_9_cmsgpack_Unpacker *); + PyObject *(*_unpack)(struct __pyx_obj_7msgpack_9_cmsgpack_Unpacker *, execute_fn, struct __pyx_opt_args_7msgpack_9_cmsgpack_8Unpacker__unpack *__pyx_optional_args); +}; +static struct __pyx_vtabstruct_7msgpack_9_cmsgpack_Unpacker *__pyx_vtabptr_7msgpack_9_cmsgpack_Unpacker; + +/* --- Runtime support code (head) --- */ +/* Refnanny.proto */ +#ifndef CYTHON_REFNANNY + #define CYTHON_REFNANNY 0 +#endif +#if CYTHON_REFNANNY + typedef struct { + void (*INCREF)(void*, PyObject*, int); + void (*DECREF)(void*, PyObject*, int); + void (*GOTREF)(void*, PyObject*, int); + void (*GIVEREF)(void*, PyObject*, int); + void* (*SetupContext)(const char*, int, const char*); + void (*FinishContext)(void**); + } __Pyx_RefNannyAPIStruct; + static __Pyx_RefNannyAPIStruct *__Pyx_RefNanny = NULL; + static __Pyx_RefNannyAPIStruct *__Pyx_RefNannyImportAPI(const char *modname); + #define __Pyx_RefNannyDeclarations void *__pyx_refnanny = NULL; +#ifdef WITH_THREAD + #define __Pyx_RefNannySetupContext(name, acquire_gil)\ + if (acquire_gil) {\ + PyGILState_STATE __pyx_gilstate_save = PyGILState_Ensure();\ + __pyx_refnanny = __Pyx_RefNanny->SetupContext((name), __LINE__, __FILE__);\ + PyGILState_Release(__pyx_gilstate_save);\ + } else {\ + __pyx_refnanny = __Pyx_RefNanny->SetupContext((name), __LINE__, __FILE__);\ + } +#else + #define __Pyx_RefNannySetupContext(name, acquire_gil)\ + __pyx_refnanny = __Pyx_RefNanny->SetupContext((name), __LINE__, __FILE__) +#endif + #define __Pyx_RefNannyFinishContext()\ + __Pyx_RefNanny->FinishContext(&__pyx_refnanny) + #define __Pyx_INCREF(r) __Pyx_RefNanny->INCREF(__pyx_refnanny, (PyObject *)(r), __LINE__) + #define __Pyx_DECREF(r) __Pyx_RefNanny->DECREF(__pyx_refnanny, (PyObject *)(r), __LINE__) + #define __Pyx_GOTREF(r) __Pyx_RefNanny->GOTREF(__pyx_refnanny, (PyObject *)(r), __LINE__) + #define __Pyx_GIVEREF(r) __Pyx_RefNanny->GIVEREF(__pyx_refnanny, (PyObject *)(r), __LINE__) + #define __Pyx_XINCREF(r) do { if((r) != NULL) {__Pyx_INCREF(r); }} while(0) + #define __Pyx_XDECREF(r) do { if((r) != NULL) {__Pyx_DECREF(r); }} while(0) + #define __Pyx_XGOTREF(r) do { if((r) != NULL) {__Pyx_GOTREF(r); }} while(0) + #define __Pyx_XGIVEREF(r) do { if((r) != NULL) {__Pyx_GIVEREF(r);}} while(0) +#else + #define __Pyx_RefNannyDeclarations + #define __Pyx_RefNannySetupContext(name, acquire_gil) + #define __Pyx_RefNannyFinishContext() + #define __Pyx_INCREF(r) Py_INCREF(r) + #define __Pyx_DECREF(r) Py_DECREF(r) + #define __Pyx_GOTREF(r) + #define __Pyx_GIVEREF(r) + #define __Pyx_XINCREF(r) Py_XINCREF(r) + #define __Pyx_XDECREF(r) Py_XDECREF(r) + #define __Pyx_XGOTREF(r) + #define __Pyx_XGIVEREF(r) +#endif +#define __Pyx_XDECREF_SET(r, v) do {\ + PyObject *tmp = (PyObject *) r;\ + r = v; __Pyx_XDECREF(tmp);\ + } while (0) +#define __Pyx_DECREF_SET(r, v) do {\ + PyObject *tmp = (PyObject *) r;\ + r = v; __Pyx_DECREF(tmp);\ + } while (0) +#define __Pyx_CLEAR(r) do { PyObject* tmp = ((PyObject*)(r)); r = NULL; __Pyx_DECREF(tmp);} while(0) +#define __Pyx_XCLEAR(r) do { if((r) != NULL) {PyObject* tmp = ((PyObject*)(r)); r = NULL; __Pyx_DECREF(tmp);}} while(0) + +/* PyObjectGetAttrStr.proto */ +#if CYTHON_USE_TYPE_SLOTS +static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStr(PyObject* obj, PyObject* attr_name); +#else +#define __Pyx_PyObject_GetAttrStr(o,n) PyObject_GetAttr(o,n) +#endif + +/* GetBuiltinName.proto */ +static PyObject *__Pyx_GetBuiltinName(PyObject *name); + +/* RaiseArgTupleInvalid.proto */ +static void __Pyx_RaiseArgtupleInvalid(const char* func_name, int exact, + Py_ssize_t num_min, Py_ssize_t num_max, Py_ssize_t num_found); + +/* KeywordStringCheck.proto */ +static int __Pyx_CheckKeywordStrings(PyObject *kwdict, const char* function_name, int kw_allowed); + +/* PyObjectCall.proto */ +#if CYTHON_COMPILING_IN_CPYTHON +static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw); +#else +#define __Pyx_PyObject_Call(func, arg, kw) PyObject_Call(func, arg, kw) +#endif + +/* PyThreadStateGet.proto */ +#if CYTHON_FAST_THREAD_STATE +#define __Pyx_PyThreadState_declare PyThreadState *__pyx_tstate; +#define __Pyx_PyThreadState_assign __pyx_tstate = __Pyx_PyThreadState_Current; +#define __Pyx_PyErr_Occurred() __pyx_tstate->curexc_type +#else +#define __Pyx_PyThreadState_declare +#define __Pyx_PyThreadState_assign +#define __Pyx_PyErr_Occurred() PyErr_Occurred() +#endif + +/* PyErrFetchRestore.proto */ +#if CYTHON_FAST_THREAD_STATE +#define __Pyx_PyErr_Clear() __Pyx_ErrRestore(NULL, NULL, NULL) +#define __Pyx_ErrRestoreWithState(type, value, tb) __Pyx_ErrRestoreInState(PyThreadState_GET(), type, value, tb) +#define __Pyx_ErrFetchWithState(type, value, tb) __Pyx_ErrFetchInState(PyThreadState_GET(), type, value, tb) +#define __Pyx_ErrRestore(type, value, tb) __Pyx_ErrRestoreInState(__pyx_tstate, type, value, tb) +#define __Pyx_ErrFetch(type, value, tb) __Pyx_ErrFetchInState(__pyx_tstate, type, value, tb) +static CYTHON_INLINE void __Pyx_ErrRestoreInState(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb); +static CYTHON_INLINE void __Pyx_ErrFetchInState(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb); +#if CYTHON_COMPILING_IN_CPYTHON +#define __Pyx_PyErr_SetNone(exc) (Py_INCREF(exc), __Pyx_ErrRestore((exc), NULL, NULL)) +#else +#define __Pyx_PyErr_SetNone(exc) PyErr_SetNone(exc) +#endif +#else +#define __Pyx_PyErr_Clear() PyErr_Clear() +#define __Pyx_PyErr_SetNone(exc) PyErr_SetNone(exc) +#define __Pyx_ErrRestoreWithState(type, value, tb) PyErr_Restore(type, value, tb) +#define __Pyx_ErrFetchWithState(type, value, tb) PyErr_Fetch(type, value, tb) +#define __Pyx_ErrRestoreInState(tstate, type, value, tb) PyErr_Restore(type, value, tb) +#define __Pyx_ErrFetchInState(tstate, type, value, tb) PyErr_Fetch(type, value, tb) +#define __Pyx_ErrRestore(type, value, tb) PyErr_Restore(type, value, tb) +#define __Pyx_ErrFetch(type, value, tb) PyErr_Fetch(type, value, tb) +#endif + +/* RaiseException.proto */ +static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause); + +/* RaiseDoubleKeywords.proto */ +static void __Pyx_RaiseDoubleKeywordsError(const char* func_name, PyObject* kw_name); + +/* ParseKeywords.proto */ +static int __Pyx_ParseOptionalKeywords(PyObject *kwds, PyObject **argnames[],\ + PyObject *kwds2, PyObject *values[], Py_ssize_t num_pos_args,\ + const char* function_name); + +/* ExtTypeTest.proto */ +static CYTHON_INLINE int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type); + +/* GetTopmostException.proto */ +#if CYTHON_USE_EXC_INFO_STACK +static _PyErr_StackItem * __Pyx_PyErr_GetTopmostException(PyThreadState *tstate); +#endif + +/* SaveResetException.proto */ +#if CYTHON_FAST_THREAD_STATE +#define __Pyx_ExceptionSave(type, value, tb) __Pyx__ExceptionSave(__pyx_tstate, type, value, tb) +static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb); +#define __Pyx_ExceptionReset(type, value, tb) __Pyx__ExceptionReset(__pyx_tstate, type, value, tb) +static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb); +#else +#define __Pyx_ExceptionSave(type, value, tb) PyErr_GetExcInfo(type, value, tb) +#define __Pyx_ExceptionReset(type, value, tb) PyErr_SetExcInfo(type, value, tb) +#endif + +/* PyErrExceptionMatches.proto */ +#if CYTHON_FAST_THREAD_STATE +#define __Pyx_PyErr_ExceptionMatches(err) __Pyx_PyErr_ExceptionMatchesInState(__pyx_tstate, err) +static CYTHON_INLINE int __Pyx_PyErr_ExceptionMatchesInState(PyThreadState* tstate, PyObject* err); +#else +#define __Pyx_PyErr_ExceptionMatches(err) PyErr_ExceptionMatches(err) +#endif + +/* GetException.proto */ +#if CYTHON_FAST_THREAD_STATE +#define __Pyx_GetException(type, value, tb) __Pyx__GetException(__pyx_tstate, type, value, tb) +static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb); +#else +static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb); +#endif + +/* PyCFunctionFastCall.proto */ +#if CYTHON_FAST_PYCCALL +static CYTHON_INLINE PyObject *__Pyx_PyCFunction_FastCall(PyObject *func, PyObject **args, Py_ssize_t nargs); +#else +#define __Pyx_PyCFunction_FastCall(func, args, nargs) (assert(0), NULL) +#endif + +/* PyFunctionFastCall.proto */ +#if CYTHON_FAST_PYCALL +#define __Pyx_PyFunction_FastCall(func, args, nargs)\ + __Pyx_PyFunction_FastCallDict((func), (args), (nargs), NULL) +#if 1 || PY_VERSION_HEX < 0x030600B1 +static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, int nargs, PyObject *kwargs); +#else +#define __Pyx_PyFunction_FastCallDict(func, args, nargs, kwargs) _PyFunction_FastCallDict(func, args, nargs, kwargs) +#endif +#define __Pyx_BUILD_ASSERT_EXPR(cond)\ + (sizeof(char [1 - 2*!(cond)]) - 1) +#ifndef Py_MEMBER_SIZE +#define Py_MEMBER_SIZE(type, member) sizeof(((type *)0)->member) +#endif + static size_t __pyx_pyframe_localsplus_offset = 0; + #include "frameobject.h" + #define __Pxy_PyFrame_Initialize_Offsets()\ + ((void)__Pyx_BUILD_ASSERT_EXPR(sizeof(PyFrameObject) == offsetof(PyFrameObject, f_localsplus) + Py_MEMBER_SIZE(PyFrameObject, f_localsplus)),\ + (void)(__pyx_pyframe_localsplus_offset = ((size_t)PyFrame_Type.tp_basicsize) - Py_MEMBER_SIZE(PyFrameObject, f_localsplus))) + #define __Pyx_PyFrame_GetLocalsplus(frame)\ + (assert(__pyx_pyframe_localsplus_offset), (PyObject **)(((char *)(frame)) + __pyx_pyframe_localsplus_offset)) +#endif + +/* PyObjectCall2Args.proto */ +static CYTHON_UNUSED PyObject* __Pyx_PyObject_Call2Args(PyObject* function, PyObject* arg1, PyObject* arg2); + +/* PyObjectCallMethO.proto */ +#if CYTHON_COMPILING_IN_CPYTHON +static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg); +#endif + +/* PyObjectCallOneArg.proto */ +static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg); + +/* SwapException.proto */ +#if CYTHON_FAST_THREAD_STATE +#define __Pyx_ExceptionSwap(type, value, tb) __Pyx__ExceptionSwap(__pyx_tstate, type, value, tb) +static CYTHON_INLINE void __Pyx__ExceptionSwap(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb); +#else +static CYTHON_INLINE void __Pyx_ExceptionSwap(PyObject **type, PyObject **value, PyObject **tb); +#endif + +/* IterFinish.proto */ +static CYTHON_INLINE int __Pyx_IterFinish(void); + +/* PyObjectCallNoArg.proto */ +#if CYTHON_COMPILING_IN_CPYTHON +static CYTHON_INLINE PyObject* __Pyx_PyObject_CallNoArg(PyObject *func); +#else +#define __Pyx_PyObject_CallNoArg(func) __Pyx_PyObject_Call(func, __pyx_empty_tuple, NULL) +#endif + +/* PyObjectGetMethod.proto */ +static int __Pyx_PyObject_GetMethod(PyObject *obj, PyObject *name, PyObject **method); + +/* PyObjectCallMethod0.proto */ +static PyObject* __Pyx_PyObject_CallMethod0(PyObject* obj, PyObject* method_name); + +/* RaiseNeedMoreValuesToUnpack.proto */ +static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index); + +/* RaiseTooManyValuesToUnpack.proto */ +static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected); + +/* UnpackItemEndCheck.proto */ +static int __Pyx_IternextUnpackEndCheck(PyObject *retval, Py_ssize_t expected); + +/* RaiseNoneIterError.proto */ +static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void); + +/* UnpackTupleError.proto */ +static void __Pyx_UnpackTupleError(PyObject *, Py_ssize_t index); + +/* UnpackTuple2.proto */ +#define __Pyx_unpack_tuple2(tuple, value1, value2, is_tuple, has_known_size, decref_tuple)\ + (likely(is_tuple || PyTuple_Check(tuple)) ?\ + (likely(has_known_size || PyTuple_GET_SIZE(tuple) == 2) ?\ + __Pyx_unpack_tuple2_exact(tuple, value1, value2, decref_tuple) :\ + (__Pyx_UnpackTupleError(tuple, 2), -1)) :\ + __Pyx_unpack_tuple2_generic(tuple, value1, value2, has_known_size, decref_tuple)) +static CYTHON_INLINE int __Pyx_unpack_tuple2_exact( + PyObject* tuple, PyObject** value1, PyObject** value2, int decref_tuple); +static int __Pyx_unpack_tuple2_generic( + PyObject* tuple, PyObject** value1, PyObject** value2, int has_known_size, int decref_tuple); + +/* dict_iter.proto */ +static CYTHON_INLINE PyObject* __Pyx_dict_iterator(PyObject* dict, int is_dict, PyObject* method_name, + Py_ssize_t* p_orig_length, int* p_is_dict); +static CYTHON_INLINE int __Pyx_dict_iter_next(PyObject* dict_or_iter, Py_ssize_t orig_length, Py_ssize_t* ppos, + PyObject** pkey, PyObject** pvalue, PyObject** pitem, int is_dict); + +/* PyDictVersioning.proto */ +#if CYTHON_USE_DICT_VERSIONS && CYTHON_USE_TYPE_SLOTS +#define __PYX_DICT_VERSION_INIT ((PY_UINT64_T) -1) +#define __PYX_GET_DICT_VERSION(dict) (((PyDictObject*)(dict))->ma_version_tag) +#define __PYX_UPDATE_DICT_CACHE(dict, value, cache_var, version_var)\ + (version_var) = __PYX_GET_DICT_VERSION(dict);\ + (cache_var) = (value); +#define __PYX_PY_DICT_LOOKUP_IF_MODIFIED(VAR, DICT, LOOKUP) {\ + static PY_UINT64_T __pyx_dict_version = 0;\ + static PyObject *__pyx_dict_cached_value = NULL;\ + if (likely(__PYX_GET_DICT_VERSION(DICT) == __pyx_dict_version)) {\ + (VAR) = __pyx_dict_cached_value;\ + } else {\ + (VAR) = __pyx_dict_cached_value = (LOOKUP);\ + __pyx_dict_version = __PYX_GET_DICT_VERSION(DICT);\ + }\ +} +static CYTHON_INLINE PY_UINT64_T __Pyx_get_tp_dict_version(PyObject *obj); +static CYTHON_INLINE PY_UINT64_T __Pyx_get_object_dict_version(PyObject *obj); +static CYTHON_INLINE int __Pyx_object_dict_version_matches(PyObject* obj, PY_UINT64_T tp_dict_version, PY_UINT64_T obj_dict_version); +#else +#define __PYX_GET_DICT_VERSION(dict) (0) +#define __PYX_UPDATE_DICT_CACHE(dict, value, cache_var, version_var) +#define __PYX_PY_DICT_LOOKUP_IF_MODIFIED(VAR, DICT, LOOKUP) (VAR) = (LOOKUP); +#endif + +/* GetModuleGlobalName.proto */ +#if CYTHON_USE_DICT_VERSIONS +#define __Pyx_GetModuleGlobalName(var, name) {\ + static PY_UINT64_T __pyx_dict_version = 0;\ + static PyObject *__pyx_dict_cached_value = NULL;\ + (var) = (likely(__pyx_dict_version == __PYX_GET_DICT_VERSION(__pyx_d))) ?\ + (likely(__pyx_dict_cached_value) ? __Pyx_NewRef(__pyx_dict_cached_value) : __Pyx_GetBuiltinName(name)) :\ + __Pyx__GetModuleGlobalName(name, &__pyx_dict_version, &__pyx_dict_cached_value);\ +} +#define __Pyx_GetModuleGlobalNameUncached(var, name) {\ + PY_UINT64_T __pyx_dict_version;\ + PyObject *__pyx_dict_cached_value;\ + (var) = __Pyx__GetModuleGlobalName(name, &__pyx_dict_version, &__pyx_dict_cached_value);\ +} +static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_version, PyObject **dict_cached_value); +#else +#define __Pyx_GetModuleGlobalName(var, name) (var) = __Pyx__GetModuleGlobalName(name) +#define __Pyx_GetModuleGlobalNameUncached(var, name) (var) = __Pyx__GetModuleGlobalName(name) +static CYTHON_INLINE PyObject *__Pyx__GetModuleGlobalName(PyObject *name); +#endif + +/* ReRaiseException.proto */ +static CYTHON_INLINE void __Pyx_ReraiseException(void); + +/* None.proto */ +static CYTHON_INLINE Py_ssize_t __Pyx_div_Py_ssize_t(Py_ssize_t, Py_ssize_t); + +/* BuildPyUnicode.proto */ +static PyObject* __Pyx_PyUnicode_BuildFromAscii(Py_ssize_t ulength, char* chars, int clength, + int prepend_sign, char padding_char); + +/* CIntToPyUnicode.proto */ +static CYTHON_INLINE PyObject* __Pyx_PyUnicode_From_int(int value, Py_ssize_t width, char padding_char, char format_char); + +/* PyObject_GenericGetAttrNoDict.proto */ +#if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000 +static CYTHON_INLINE PyObject* __Pyx_PyObject_GenericGetAttrNoDict(PyObject* obj, PyObject* attr_name); +#else +#define __Pyx_PyObject_GenericGetAttrNoDict PyObject_GenericGetAttr +#endif + +/* PyObject_GenericGetAttr.proto */ +#if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000 +static PyObject* __Pyx_PyObject_GenericGetAttr(PyObject* obj, PyObject* attr_name); +#else +#define __Pyx_PyObject_GenericGetAttr PyObject_GenericGetAttr +#endif + +/* SetVTable.proto */ +static int __Pyx_SetVtable(PyObject *dict, void *vtable); + +/* SetupReduce.proto */ +static int __Pyx_setup_reduce(PyObject* type_obj); + +/* TypeImport.proto */ +#ifndef __PYX_HAVE_RT_ImportType_proto +#define __PYX_HAVE_RT_ImportType_proto +enum __Pyx_ImportType_CheckSize { + __Pyx_ImportType_CheckSize_Error = 0, + __Pyx_ImportType_CheckSize_Warn = 1, + __Pyx_ImportType_CheckSize_Ignore = 2 +}; +static PyTypeObject *__Pyx_ImportType(PyObject* module, const char *module_name, const char *class_name, size_t size, enum __Pyx_ImportType_CheckSize check_size); +#endif + +/* Import.proto */ +static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, int level); + +/* ImportFrom.proto */ +static PyObject* __Pyx_ImportFrom(PyObject* module, PyObject* name); + +/* CLineInTraceback.proto */ +#ifdef CYTHON_CLINE_IN_TRACEBACK +#define __Pyx_CLineForTraceback(tstate, c_line) (((CYTHON_CLINE_IN_TRACEBACK)) ? c_line : 0) +#else +static int __Pyx_CLineForTraceback(PyThreadState *tstate, int c_line); +#endif + +/* CodeObjectCache.proto */ +typedef struct { + PyCodeObject* code_object; + int code_line; +} __Pyx_CodeObjectCacheEntry; +struct __Pyx_CodeObjectCache { + int count; + int max_count; + __Pyx_CodeObjectCacheEntry* entries; +}; +static struct __Pyx_CodeObjectCache __pyx_code_cache = {0,0,NULL}; +static int __pyx_bisect_code_objects(__Pyx_CodeObjectCacheEntry* entries, int count, int code_line); +static PyCodeObject *__pyx_find_code_object(int code_line); +static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object); + +/* AddTraceback.proto */ +static void __Pyx_AddTraceback(const char *funcname, int c_line, + int py_line, const char *filename); + +/* CIntToPy.proto */ +static CYTHON_INLINE PyObject* __Pyx_PyInt_From_unsigned_PY_LONG_LONG(unsigned PY_LONG_LONG value); + +/* CIntFromPy.proto */ +static CYTHON_INLINE PY_LONG_LONG __Pyx_PyInt_As_PY_LONG_LONG(PyObject *); + +/* CIntFromPy.proto */ +static CYTHON_INLINE unsigned PY_LONG_LONG __Pyx_PyInt_As_unsigned_PY_LONG_LONG(PyObject *); + +/* CIntFromPy.proto */ +static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *); + +/* CIntFromPy.proto */ +static CYTHON_INLINE char __Pyx_PyInt_As_char(PyObject *); + +/* CIntToPy.proto */ +static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value); + +/* CIntFromPy.proto */ +static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *); + +/* FastTypeChecks.proto */ +#if CYTHON_COMPILING_IN_CPYTHON +#define __Pyx_TypeCheck(obj, type) __Pyx_IsSubtype(Py_TYPE(obj), (PyTypeObject *)type) +static CYTHON_INLINE int __Pyx_IsSubtype(PyTypeObject *a, PyTypeObject *b); +static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches(PyObject *err, PyObject *type); +static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObject *type1, PyObject *type2); +#else +#define __Pyx_TypeCheck(obj, type) PyObject_TypeCheck(obj, (PyTypeObject *)type) +#define __Pyx_PyErr_GivenExceptionMatches(err, type) PyErr_GivenExceptionMatches(err, type) +#define __Pyx_PyErr_GivenExceptionMatches2(err, type1, type2) (PyErr_GivenExceptionMatches(err, type1) || PyErr_GivenExceptionMatches(err, type2)) +#endif +#define __Pyx_PyException_Check(obj) __Pyx_TypeCheck(obj, PyExc_Exception) + +/* CheckBinaryVersion.proto */ +static int __Pyx_check_binary_version(void); + +/* InitStrings.proto */ +static int __Pyx_InitStrings(__Pyx_StringTabEntry *t); + +static int __pyx_f_7msgpack_9_cmsgpack_6Packer__pack(struct __pyx_obj_7msgpack_9_cmsgpack_Packer *__pyx_v_self, PyObject *__pyx_v_o, struct __pyx_opt_args_7msgpack_9_cmsgpack_6Packer__pack *__pyx_optional_args); /* proto*/ +static PyObject *__pyx_f_7msgpack_9_cmsgpack_6Packer_pack(struct __pyx_obj_7msgpack_9_cmsgpack_Packer *__pyx_v_self, PyObject *__pyx_v_obj, int __pyx_skip_dispatch); /* proto*/ +static PyObject *__pyx_f_7msgpack_9_cmsgpack_8Unpacker_append_buffer(struct __pyx_obj_7msgpack_9_cmsgpack_Unpacker *__pyx_v_self, void *__pyx_v__buf, Py_ssize_t __pyx_v__buf_len); /* proto*/ +static PyObject *__pyx_f_7msgpack_9_cmsgpack_8Unpacker_read_from_file(struct __pyx_obj_7msgpack_9_cmsgpack_Unpacker *__pyx_v_self); /* proto*/ +static PyObject *__pyx_f_7msgpack_9_cmsgpack_8Unpacker__unpack(struct __pyx_obj_7msgpack_9_cmsgpack_Unpacker *__pyx_v_self, execute_fn __pyx_v_execute, struct __pyx_opt_args_7msgpack_9_cmsgpack_8Unpacker__unpack *__pyx_optional_args); /* proto*/ + +/* Module declarations from 'cpython.version' */ + +/* Module declarations from '__builtin__' */ + +/* Module declarations from 'cpython.type' */ +static PyTypeObject *__pyx_ptype_7cpython_4type_type = 0; + +/* Module declarations from 'libc.string' */ + +/* Module declarations from 'libc.stdio' */ + +/* Module declarations from 'cpython.object' */ + +/* Module declarations from 'cpython.ref' */ + +/* Module declarations from 'cpython.exc' */ + +/* Module declarations from 'cpython.module' */ + +/* Module declarations from 'cpython.mem' */ + +/* Module declarations from 'cpython.tuple' */ + +/* Module declarations from 'cpython.list' */ + +/* Module declarations from 'cpython.sequence' */ + +/* Module declarations from 'cpython.mapping' */ + +/* Module declarations from 'cpython.iterator' */ + +/* Module declarations from 'cpython.number' */ + +/* Module declarations from 'cpython.int' */ + +/* Module declarations from '__builtin__' */ + +/* Module declarations from 'cpython.bool' */ +static PyTypeObject *__pyx_ptype_7cpython_4bool_bool = 0; + +/* Module declarations from 'cpython.long' */ + +/* Module declarations from 'cpython.float' */ + +/* Module declarations from '__builtin__' */ + +/* Module declarations from 'cpython.complex' */ +static PyTypeObject *__pyx_ptype_7cpython_7complex_complex = 0; + +/* Module declarations from 'cpython.string' */ + +/* Module declarations from 'cpython.unicode' */ + +/* Module declarations from 'cpython.dict' */ + +/* Module declarations from 'cpython.instance' */ + +/* Module declarations from 'cpython.function' */ + +/* Module declarations from 'cpython.method' */ + +/* Module declarations from 'cpython.weakref' */ + +/* Module declarations from 'cpython.getargs' */ + +/* Module declarations from 'cpython.pythread' */ + +/* Module declarations from 'cpython.pystate' */ + +/* Module declarations from 'cpython.cobject' */ + +/* Module declarations from 'cpython.oldbuffer' */ + +/* Module declarations from 'cpython.set' */ + +/* Module declarations from 'cpython.buffer' */ + +/* Module declarations from 'cpython.bytes' */ + +/* Module declarations from 'cpython.pycapsule' */ + +/* Module declarations from 'cpython' */ + +/* Module declarations from 'cpython.bytearray' */ + +/* Module declarations from 'libc.stdlib' */ + +/* Module declarations from 'libc.limits' */ + +/* Module declarations from 'msgpack._cmsgpack' */ +static PyTypeObject *__pyx_ptype_7msgpack_9_cmsgpack_Packer = 0; +static PyTypeObject *__pyx_ptype_7msgpack_9_cmsgpack_Unpacker = 0; +static int __pyx_v_7msgpack_9_cmsgpack_DEFAULT_RECURSE_LIMIT; +static PY_LONG_LONG __pyx_v_7msgpack_9_cmsgpack_ITEM_LIMIT; +static CYTHON_INLINE int __pyx_f_7msgpack_9_cmsgpack_PyBytesLike_Check(PyObject *); /*proto*/ +static CYTHON_INLINE int __pyx_f_7msgpack_9_cmsgpack_PyBytesLike_CheckExact(PyObject *); /*proto*/ +static CYTHON_INLINE PyObject *__pyx_f_7msgpack_9_cmsgpack_init_ctx(unpack_context *, PyObject *, PyObject *, PyObject *, PyObject *, int, int, int, char const *, char const *, Py_ssize_t, Py_ssize_t, Py_ssize_t, Py_ssize_t, Py_ssize_t); /*proto*/ +static CYTHON_INLINE int __pyx_f_7msgpack_9_cmsgpack_get_data_from_buffer(PyObject *, Py_buffer *, char **, Py_ssize_t *, int *); /*proto*/ +#define __Pyx_MODULE_NAME "msgpack._cmsgpack" +extern int __pyx_module_is_main_msgpack___cmsgpack; +int __pyx_module_is_main_msgpack___cmsgpack = 0; + +/* Implementation of 'msgpack._cmsgpack' */ +static PyObject *__pyx_builtin_MemoryError; +static PyObject *__pyx_builtin_DeprecationWarning; +static PyObject *__pyx_builtin_TypeError; +static PyObject *__pyx_builtin_ValueError; +static PyObject *__pyx_builtin_OverflowError; +static PyObject *__pyx_builtin_RuntimeError; +static PyObject *__pyx_builtin_NotImplementedError; +static PyObject *__pyx_builtin_BufferError; +static PyObject *__pyx_builtin_RuntimeWarning; +static PyObject *__pyx_builtin_AssertionError; +static PyObject *__pyx_builtin_StopIteration; +static const char __pyx_k_d[] = "d"; +static const char __pyx_k_buf[] = "buf"; +static const char __pyx_k_ctx[] = "ctx"; +static const char __pyx_k_obj[] = "obj"; +static const char __pyx_k_off[] = "off"; +static const char __pyx_k_raw[] = "raw"; +static const char __pyx_k_ret[] = "ret"; +static const char __pyx_k_cenc[] = "cenc"; +static const char __pyx_k_cerr[] = "cerr"; +static const char __pyx_k_code[] = "code"; +static const char __pyx_k_data[] = "data"; +static const char __pyx_k_main[] = "__main__"; +static const char __pyx_k_name[] = "__name__"; +static const char __pyx_k_pack[] = "pack"; +static const char __pyx_k_read[] = "read"; +static const char __pyx_k_test[] = "__test__"; +static const char __pyx_k_view[] = "view"; +static const char __pyx_k_items[] = "items"; +static const char __pyx_k_Packer[] = "Packer"; +static const char __pyx_k_import[] = "__import__"; +static const char __pyx_k_kwargs[] = "kwargs"; +static const char __pyx_k_packed[] = "packed"; +static const char __pyx_k_reduce[] = "__reduce__"; +static const char __pyx_k_stream[] = "stream"; +static const char __pyx_k_unpack[] = "unpack"; +static const char __pyx_k_ExtType[] = "ExtType"; +static const char __pyx_k_buf_len[] = "buf_len"; +static const char __pyx_k_default[] = "default"; +static const char __pyx_k_unpackb[] = "unpackb"; +static const char __pyx_k_Unpacker[] = "Unpacker"; +static const char __pyx_k_encoding[] = "encoding"; +static const char __pyx_k_ext_hook[] = "ext_hook"; +static const char __pyx_k_getstate[] = "__getstate__"; +static const char __pyx_k_setstate[] = "__setstate__"; +static const char __pyx_k_typecode[] = "typecode"; +static const char __pyx_k_use_list[] = "use_list"; +static const char __pyx_k_ExtraData[] = "ExtraData"; +static const char __pyx_k_OutOfData[] = "OutOfData"; +static const char __pyx_k_TypeError[] = "TypeError"; +static const char __pyx_k_autoreset[] = "autoreset"; +static const char __pyx_k_file_like[] = "file_like"; +static const char __pyx_k_list_hook[] = "list_hook"; +static const char __pyx_k_read_size[] = "read_size"; +static const char __pyx_k_reduce_ex[] = "__reduce_ex__"; +static const char __pyx_k_BufferFull[] = "BufferFull"; +static const char __pyx_k_StackError[] = "StackError"; +static const char __pyx_k_ValueError[] = "ValueError"; +static const char __pyx_k_pyx_vtable[] = "__pyx_vtable__"; +static const char __pyx_k_BufferError[] = "BufferError"; +static const char __pyx_k_FormatError[] = "FormatError"; +static const char __pyx_k_MemoryError[] = "MemoryError"; +static const char __pyx_k_max_bin_len[] = "max_bin_len"; +static const char __pyx_k_max_ext_len[] = "max_ext_len"; +static const char __pyx_k_max_map_len[] = "max_map_len"; +static const char __pyx_k_max_str_len[] = "max_str_len"; +static const char __pyx_k_object_hook[] = "object_hook"; +static const char __pyx_k_RuntimeError[] = "RuntimeError"; +static const char __pyx_k_new_protocol[] = "new_protocol"; +static const char __pyx_k_strict_types[] = "strict_types"; +static const char __pyx_k_use_bin_type[] = "use_bin_type"; +static const char __pyx_k_OverflowError[] = "OverflowError"; +static const char __pyx_k_StopIteration[] = "StopIteration"; +static const char __pyx_k_max_array_len[] = "max_array_len"; +static const char __pyx_k_reduce_cython[] = "__reduce_cython__"; +static const char __pyx_k_AssertionError[] = "AssertionError"; +static const char __pyx_k_RuntimeWarning[] = "RuntimeWarning"; +static const char __pyx_k_internal_error[] = "internal error"; +static const char __pyx_k_strict_map_key[] = "strict_map_key"; +static const char __pyx_k_unicode_errors[] = "unicode_errors"; +static const char __pyx_k_max_buffer_size[] = "max_buffer_size"; +static const char __pyx_k_setstate_cython[] = "__setstate_cython__"; +static const char __pyx_k_use_single_float[] = "use_single_float"; +static const char __pyx_k_dict_is_too_large[] = "dict is too large"; +static const char __pyx_k_list_is_too_large[] = "list is too large"; +static const char __pyx_k_msgpack__cmsgpack[] = "msgpack._cmsgpack"; +static const char __pyx_k_object_pairs_hook[] = "object_pairs_hook"; +static const char __pyx_k_DeprecationWarning[] = "DeprecationWarning"; +static const char __pyx_k_cline_in_traceback[] = "cline_in_traceback"; +static const char __pyx_k_NotImplementedError[] = "NotImplementedError"; +static const char __pyx_k_Unpack_failed_error[] = "Unpack failed: error = "; +static const char __pyx_k_EXT_data_is_too_large[] = "EXT data is too large"; +static const char __pyx_k_msgpack__unpacker_pyx[] = "msgpack/_unpacker.pyx"; +static const char __pyx_k_No_more_data_to_unpack[] = "No more data to unpack."; +static const char __pyx_k_ddtrace_vendor_msgpack[] = "ddtrace.vendor.msgpack"; +static const char __pyx_k_memoryview_is_too_large[] = "memoryview is too large"; +static const char __pyx_k_could_not_get_memoryview[] = "could not get memoryview"; +static const char __pyx_k_recursion_limit_exceeded[] = "recursion limit exceeded."; +static const char __pyx_k_Integer_value_out_of_range[] = "Integer value out of range"; +static const char __pyx_k_default_must_be_a_callable[] = "default must be a callable."; +static const char __pyx_k_default_read_extended_type[] = "default_read_extended_type"; +static const char __pyx_k_ext_hook_must_be_a_callable[] = "ext_hook must be a callable."; +static const char __pyx_k_unicode_string_is_too_large[] = "unicode string is too large"; +static const char __pyx_k_list_hook_must_be_a_callable[] = "list_hook must be a callable."; +static const char __pyx_k_Unpack_failed_incomplete_input[] = "Unpack failed: incomplete input"; +static const char __pyx_k_object_hook_must_be_a_callable[] = "object_hook must be a callable."; +static const char __pyx_k_file_like_read_must_be_a_callab[] = "`file_like.read` must be a callable."; +static const char __pyx_k_unpacker_feed_is_not_be_able_to[] = "unpacker.feed() is not be able to use with `file_like`."; +static const char __pyx_k_Cannot_decode_extended_type_with[] = "Cannot decode extended type with typecode=%d"; +static const char __pyx_k_Unable_to_allocate_internal_buff[] = "Unable to allocate internal buffer."; +static const char __pyx_k_Unable_to_enlarge_internal_buffe[] = "Unable to enlarge internal buffer."; +static const char __pyx_k_cannot_unpack_from_multi_byte_ob[] = "cannot unpack from multi-byte object"; +static const char __pyx_k_could_not_get_buffer_for_memoryv[] = "could not get buffer for memoryview"; +static const char __pyx_k_ddtrace_vendor_msgpack_exception[] = "ddtrace.vendor.msgpack.exceptions"; +static const char __pyx_k_no_default___reduce___due_to_non[] = "no default __reduce__ due to non-trivial __cinit__"; +static const char __pyx_k_object_pairs_hook_and_object_hoo[] = "object_pairs_hook and object_hook are mutually exclusive."; +static const char __pyx_k_object_pairs_hook_must_be_a_call[] = "object_pairs_hook must be a callable."; +static const char __pyx_k_read_size_should_be_less_or_equa[] = "read_size should be less or equal to max_buffer_size"; +static const char __pyx_k_using_old_buffer_interface_to_un[] = "using old buffer interface to unpack %s; this leads to unpacking errors if slicing is used and will be removed in a future version"; +static PyObject *__pyx_n_s_AssertionError; +static PyObject *__pyx_n_s_BufferError; +static PyObject *__pyx_n_s_BufferFull; +static PyObject *__pyx_kp_u_Cannot_decode_extended_type_with; +static PyObject *__pyx_n_s_DeprecationWarning; +static PyObject *__pyx_kp_u_EXT_data_is_too_large; +static PyObject *__pyx_n_s_ExtType; +static PyObject *__pyx_n_s_ExtraData; +static PyObject *__pyx_n_s_FormatError; +static PyObject *__pyx_kp_u_Integer_value_out_of_range; +static PyObject *__pyx_n_s_MemoryError; +static PyObject *__pyx_kp_u_No_more_data_to_unpack; +static PyObject *__pyx_n_s_NotImplementedError; +static PyObject *__pyx_n_s_OutOfData; +static PyObject *__pyx_n_s_OverflowError; +static PyObject *__pyx_n_s_Packer; +static PyObject *__pyx_n_s_RuntimeError; +static PyObject *__pyx_n_s_RuntimeWarning; +static PyObject *__pyx_n_s_StackError; +static PyObject *__pyx_n_s_StopIteration; +static PyObject *__pyx_n_s_TypeError; +static PyObject *__pyx_kp_u_Unable_to_allocate_internal_buff; +static PyObject *__pyx_kp_u_Unable_to_enlarge_internal_buffe; +static PyObject *__pyx_kp_u_Unpack_failed_error; +static PyObject *__pyx_kp_u_Unpack_failed_incomplete_input; +static PyObject *__pyx_n_s_Unpacker; +static PyObject *__pyx_n_s_ValueError; +static PyObject *__pyx_n_s_autoreset; +static PyObject *__pyx_n_s_buf; +static PyObject *__pyx_n_s_buf_len; +static PyObject *__pyx_kp_u_cannot_unpack_from_multi_byte_ob; +static PyObject *__pyx_n_s_cenc; +static PyObject *__pyx_n_s_cerr; +static PyObject *__pyx_n_s_cline_in_traceback; +static PyObject *__pyx_n_s_code; +static PyObject *__pyx_kp_u_could_not_get_buffer_for_memoryv; +static PyObject *__pyx_kp_u_could_not_get_memoryview; +static PyObject *__pyx_n_s_ctx; +static PyObject *__pyx_n_u_d; +static PyObject *__pyx_n_s_data; +static PyObject *__pyx_n_s_ddtrace_vendor_msgpack; +static PyObject *__pyx_n_s_ddtrace_vendor_msgpack_exception; +static PyObject *__pyx_n_s_default; +static PyObject *__pyx_kp_u_default_must_be_a_callable; +static PyObject *__pyx_n_s_default_read_extended_type; +static PyObject *__pyx_kp_u_dict_is_too_large; +static PyObject *__pyx_n_s_encoding; +static PyObject *__pyx_n_s_ext_hook; +static PyObject *__pyx_kp_u_ext_hook_must_be_a_callable; +static PyObject *__pyx_n_s_file_like; +static PyObject *__pyx_kp_u_file_like_read_must_be_a_callab; +static PyObject *__pyx_n_s_getstate; +static PyObject *__pyx_n_s_import; +static PyObject *__pyx_kp_u_internal_error; +static PyObject *__pyx_n_s_items; +static PyObject *__pyx_n_s_kwargs; +static PyObject *__pyx_n_s_list_hook; +static PyObject *__pyx_kp_u_list_hook_must_be_a_callable; +static PyObject *__pyx_kp_u_list_is_too_large; +static PyObject *__pyx_n_s_main; +static PyObject *__pyx_n_s_max_array_len; +static PyObject *__pyx_n_s_max_bin_len; +static PyObject *__pyx_n_s_max_buffer_size; +static PyObject *__pyx_n_s_max_ext_len; +static PyObject *__pyx_n_s_max_map_len; +static PyObject *__pyx_n_s_max_str_len; +static PyObject *__pyx_kp_u_memoryview_is_too_large; +static PyObject *__pyx_n_s_msgpack__cmsgpack; +static PyObject *__pyx_kp_s_msgpack__unpacker_pyx; +static PyObject *__pyx_n_s_name; +static PyObject *__pyx_n_s_new_protocol; +static PyObject *__pyx_kp_s_no_default___reduce___due_to_non; +static PyObject *__pyx_n_s_obj; +static PyObject *__pyx_n_s_object_hook; +static PyObject *__pyx_kp_u_object_hook_must_be_a_callable; +static PyObject *__pyx_n_s_object_pairs_hook; +static PyObject *__pyx_kp_u_object_pairs_hook_and_object_hoo; +static PyObject *__pyx_kp_u_object_pairs_hook_must_be_a_call; +static PyObject *__pyx_n_s_off; +static PyObject *__pyx_n_s_pack; +static PyObject *__pyx_n_s_packed; +static PyObject *__pyx_n_s_pyx_vtable; +static PyObject *__pyx_n_s_raw; +static PyObject *__pyx_n_s_read; +static PyObject *__pyx_n_s_read_size; +static PyObject *__pyx_kp_u_read_size_should_be_less_or_equa; +static PyObject *__pyx_kp_u_recursion_limit_exceeded; +static PyObject *__pyx_n_s_reduce; +static PyObject *__pyx_n_s_reduce_cython; +static PyObject *__pyx_n_s_reduce_ex; +static PyObject *__pyx_n_s_ret; +static PyObject *__pyx_n_s_setstate; +static PyObject *__pyx_n_s_setstate_cython; +static PyObject *__pyx_n_s_stream; +static PyObject *__pyx_n_s_strict_map_key; +static PyObject *__pyx_n_s_strict_types; +static PyObject *__pyx_n_s_test; +static PyObject *__pyx_n_s_typecode; +static PyObject *__pyx_n_s_unicode_errors; +static PyObject *__pyx_kp_u_unicode_string_is_too_large; +static PyObject *__pyx_n_s_unpack; +static PyObject *__pyx_n_s_unpackb; +static PyObject *__pyx_kp_u_unpacker_feed_is_not_be_able_to; +static PyObject *__pyx_n_s_use_bin_type; +static PyObject *__pyx_n_s_use_list; +static PyObject *__pyx_n_s_use_single_float; +static PyObject *__pyx_kp_u_using_old_buffer_interface_to_un; +static PyObject *__pyx_n_s_view; +static int __pyx_pf_7msgpack_9_cmsgpack_6Packer___cinit__(struct __pyx_obj_7msgpack_9_cmsgpack_Packer *__pyx_v_self); /* proto */ +static int __pyx_pf_7msgpack_9_cmsgpack_6Packer_2__init__(struct __pyx_obj_7msgpack_9_cmsgpack_Packer *__pyx_v_self, PyObject *__pyx_v_default, PyObject *__pyx_v_encoding, PyObject *__pyx_v_unicode_errors, int __pyx_v_use_single_float, int __pyx_v_autoreset, int __pyx_v_use_bin_type, int __pyx_v_strict_types); /* proto */ +static void __pyx_pf_7msgpack_9_cmsgpack_6Packer_4__dealloc__(struct __pyx_obj_7msgpack_9_cmsgpack_Packer *__pyx_v_self); /* proto */ +static PyObject *__pyx_pf_7msgpack_9_cmsgpack_6Packer_6pack(struct __pyx_obj_7msgpack_9_cmsgpack_Packer *__pyx_v_self, PyObject *__pyx_v_obj); /* proto */ +static PyObject *__pyx_pf_7msgpack_9_cmsgpack_6Packer_8pack_ext_type(struct __pyx_obj_7msgpack_9_cmsgpack_Packer *__pyx_v_self, PyObject *__pyx_v_typecode, PyObject *__pyx_v_data); /* proto */ +static PyObject *__pyx_pf_7msgpack_9_cmsgpack_6Packer_10pack_array_header(struct __pyx_obj_7msgpack_9_cmsgpack_Packer *__pyx_v_self, PY_LONG_LONG __pyx_v_size); /* proto */ +static PyObject *__pyx_pf_7msgpack_9_cmsgpack_6Packer_12pack_map_header(struct __pyx_obj_7msgpack_9_cmsgpack_Packer *__pyx_v_self, PY_LONG_LONG __pyx_v_size); /* proto */ +static PyObject *__pyx_pf_7msgpack_9_cmsgpack_6Packer_14pack_map_pairs(struct __pyx_obj_7msgpack_9_cmsgpack_Packer *__pyx_v_self, PyObject *__pyx_v_pairs); /* proto */ +static PyObject *__pyx_pf_7msgpack_9_cmsgpack_6Packer_16reset(struct __pyx_obj_7msgpack_9_cmsgpack_Packer *__pyx_v_self); /* proto */ +static PyObject *__pyx_pf_7msgpack_9_cmsgpack_6Packer_18bytes(struct __pyx_obj_7msgpack_9_cmsgpack_Packer *__pyx_v_self); /* proto */ +static PyObject *__pyx_pf_7msgpack_9_cmsgpack_6Packer_20getbuffer(struct __pyx_obj_7msgpack_9_cmsgpack_Packer *__pyx_v_self); /* proto */ +static PyObject *__pyx_pf_7msgpack_9_cmsgpack_6Packer_22__reduce_cython__(CYTHON_UNUSED struct __pyx_obj_7msgpack_9_cmsgpack_Packer *__pyx_v_self); 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(default: 'utf-8')\n ", /*tp_doc*/ + __pyx_tp_traverse_7msgpack_9_cmsgpack_Packer, /*tp_traverse*/ + __pyx_tp_clear_7msgpack_9_cmsgpack_Packer, /*tp_clear*/ + 0, /*tp_richcompare*/ + 0, /*tp_weaklistoffset*/ + 0, /*tp_iter*/ + 0, /*tp_iternext*/ + __pyx_methods_7msgpack_9_cmsgpack_Packer, /*tp_methods*/ + 0, /*tp_members*/ + 0, /*tp_getset*/ + 0, /*tp_base*/ + 0, /*tp_dict*/ + 0, /*tp_descr_get*/ + 0, /*tp_descr_set*/ + 0, /*tp_dictoffset*/ + __pyx_pw_7msgpack_9_cmsgpack_6Packer_3__init__, /*tp_init*/ + 0, /*tp_alloc*/ + __pyx_tp_new_7msgpack_9_cmsgpack_Packer, /*tp_new*/ + 0, /*tp_free*/ + 0, /*tp_is_gc*/ + 0, /*tp_bases*/ + 0, /*tp_mro*/ + 0, /*tp_cache*/ + 0, /*tp_subclasses*/ + 0, /*tp_weaklist*/ + 0, /*tp_del*/ + 0, /*tp_version_tag*/ + #if PY_VERSION_HEX >= 0x030400a1 + 0, /*tp_finalize*/ + #endif +}; +static struct __pyx_vtabstruct_7msgpack_9_cmsgpack_Unpacker __pyx_vtable_7msgpack_9_cmsgpack_Unpacker; + +static PyObject *__pyx_tp_new_7msgpack_9_cmsgpack_Unpacker(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) { + struct __pyx_obj_7msgpack_9_cmsgpack_Unpacker *p; + PyObject *o; + if (likely((t->tp_flags & Py_TPFLAGS_IS_ABSTRACT) == 0)) { + o = (*t->tp_alloc)(t, 0); + } else { + o = (PyObject *) PyBaseObject_Type.tp_new(t, __pyx_empty_tuple, 0); + } + if (unlikely(!o)) return 0; + p = ((struct __pyx_obj_7msgpack_9_cmsgpack_Unpacker *)o); + p->__pyx_vtab = __pyx_vtabptr_7msgpack_9_cmsgpack_Unpacker; + p->file_like = Py_None; Py_INCREF(Py_None); + p->file_like_read = Py_None; Py_INCREF(Py_None); + p->object_hook = Py_None; Py_INCREF(Py_None); + p->object_pairs_hook = Py_None; Py_INCREF(Py_None); + p->list_hook = Py_None; Py_INCREF(Py_None); + p->ext_hook = Py_None; Py_INCREF(Py_None); + p->encoding = Py_None; Py_INCREF(Py_None); + p->unicode_errors = Py_None; Py_INCREF(Py_None); + if (unlikely(__pyx_pw_7msgpack_9_cmsgpack_8Unpacker_1__cinit__(o, __pyx_empty_tuple, NULL) < 0)) goto bad; + return o; + bad: + Py_DECREF(o); o = 0; + return NULL; +} + +static void __pyx_tp_dealloc_7msgpack_9_cmsgpack_Unpacker(PyObject *o) { + struct __pyx_obj_7msgpack_9_cmsgpack_Unpacker *p = (struct __pyx_obj_7msgpack_9_cmsgpack_Unpacker *)o; + #if CYTHON_USE_TP_FINALIZE + if (unlikely(PyType_HasFeature(Py_TYPE(o), Py_TPFLAGS_HAVE_FINALIZE) && Py_TYPE(o)->tp_finalize) && !_PyGC_FINALIZED(o)) { + if (PyObject_CallFinalizerFromDealloc(o)) return; + } + #endif + PyObject_GC_UnTrack(o); + { + PyObject *etype, *eval, *etb; + PyErr_Fetch(&etype, &eval, &etb); + ++Py_REFCNT(o); + __pyx_pw_7msgpack_9_cmsgpack_8Unpacker_3__dealloc__(o); + --Py_REFCNT(o); + PyErr_Restore(etype, eval, etb); + } + Py_CLEAR(p->file_like); + Py_CLEAR(p->file_like_read); + Py_CLEAR(p->object_hook); + Py_CLEAR(p->object_pairs_hook); + Py_CLEAR(p->list_hook); + Py_CLEAR(p->ext_hook); + Py_CLEAR(p->encoding); + Py_CLEAR(p->unicode_errors); + (*Py_TYPE(o)->tp_free)(o); +} + +static int __pyx_tp_traverse_7msgpack_9_cmsgpack_Unpacker(PyObject *o, visitproc v, void *a) { + int e; + struct __pyx_obj_7msgpack_9_cmsgpack_Unpacker *p = (struct __pyx_obj_7msgpack_9_cmsgpack_Unpacker *)o; + if (p->file_like) { + e = (*v)(p->file_like, a); if (e) return e; + } + if (p->file_like_read) { + e = (*v)(p->file_like_read, a); if (e) return e; + } + if (p->object_hook) { + e = (*v)(p->object_hook, a); if (e) return e; + } + if (p->object_pairs_hook) { + e = (*v)(p->object_pairs_hook, a); if (e) return e; + } + if (p->list_hook) { + e = (*v)(p->list_hook, a); if (e) return e; + } + if (p->ext_hook) { + e = (*v)(p->ext_hook, a); if (e) return e; + } + if (p->encoding) { + e = (*v)(p->encoding, a); if (e) return e; + } + if (p->unicode_errors) { + e = (*v)(p->unicode_errors, a); if (e) return e; + } + return 0; +} + +static int __pyx_tp_clear_7msgpack_9_cmsgpack_Unpacker(PyObject *o) { + PyObject* tmp; + struct __pyx_obj_7msgpack_9_cmsgpack_Unpacker *p = (struct __pyx_obj_7msgpack_9_cmsgpack_Unpacker *)o; + tmp = ((PyObject*)p->file_like); + p->file_like = Py_None; Py_INCREF(Py_None); + Py_XDECREF(tmp); + tmp = ((PyObject*)p->file_like_read); + p->file_like_read = Py_None; Py_INCREF(Py_None); + Py_XDECREF(tmp); + tmp = ((PyObject*)p->object_hook); + p->object_hook = Py_None; Py_INCREF(Py_None); + Py_XDECREF(tmp); + tmp = ((PyObject*)p->object_pairs_hook); + p->object_pairs_hook = Py_None; Py_INCREF(Py_None); + Py_XDECREF(tmp); + tmp = ((PyObject*)p->list_hook); + p->list_hook = Py_None; Py_INCREF(Py_None); + Py_XDECREF(tmp); + tmp = ((PyObject*)p->ext_hook); + p->ext_hook = Py_None; Py_INCREF(Py_None); + Py_XDECREF(tmp); + tmp = ((PyObject*)p->encoding); + p->encoding = Py_None; Py_INCREF(Py_None); + Py_XDECREF(tmp); + tmp = ((PyObject*)p->unicode_errors); + p->unicode_errors = Py_None; Py_INCREF(Py_None); + Py_XDECREF(tmp); + return 0; +} + +static PyObject *__pyx_specialmethod___pyx_pw_7msgpack_9_cmsgpack_8Unpacker_23__next__(PyObject *self, CYTHON_UNUSED PyObject *arg) {return __pyx_pw_7msgpack_9_cmsgpack_8Unpacker_23__next__(self);} + +static PyMethodDef __pyx_methods_7msgpack_9_cmsgpack_Unpacker[] = { + {"feed", (PyCFunction)__pyx_pw_7msgpack_9_cmsgpack_8Unpacker_7feed, METH_O, __pyx_doc_7msgpack_9_cmsgpack_8Unpacker_6feed}, + {"read_bytes", (PyCFunction)__pyx_pw_7msgpack_9_cmsgpack_8Unpacker_9read_bytes, METH_O, __pyx_doc_7msgpack_9_cmsgpack_8Unpacker_8read_bytes}, + {"unpack", (PyCFunction)__pyx_pw_7msgpack_9_cmsgpack_8Unpacker_11unpack, METH_NOARGS, __pyx_doc_7msgpack_9_cmsgpack_8Unpacker_10unpack}, + {"skip", (PyCFunction)__pyx_pw_7msgpack_9_cmsgpack_8Unpacker_13skip, METH_NOARGS, __pyx_doc_7msgpack_9_cmsgpack_8Unpacker_12skip}, + {"read_array_header", (PyCFunction)__pyx_pw_7msgpack_9_cmsgpack_8Unpacker_15read_array_header, METH_NOARGS, __pyx_doc_7msgpack_9_cmsgpack_8Unpacker_14read_array_header}, + {"read_map_header", (PyCFunction)__pyx_pw_7msgpack_9_cmsgpack_8Unpacker_17read_map_header, METH_NOARGS, __pyx_doc_7msgpack_9_cmsgpack_8Unpacker_16read_map_header}, + {"tell", (PyCFunction)__pyx_pw_7msgpack_9_cmsgpack_8Unpacker_19tell, METH_NOARGS, __pyx_doc_7msgpack_9_cmsgpack_8Unpacker_18tell}, + {"__next__", (PyCFunction)__pyx_specialmethod___pyx_pw_7msgpack_9_cmsgpack_8Unpacker_23__next__, METH_NOARGS|METH_COEXIST, 0}, + {"__reduce_cython__", (PyCFunction)__pyx_pw_7msgpack_9_cmsgpack_8Unpacker_25__reduce_cython__, METH_NOARGS, __pyx_doc_7msgpack_9_cmsgpack_8Unpacker_24__reduce_cython__}, + {"__setstate_cython__", (PyCFunction)__pyx_pw_7msgpack_9_cmsgpack_8Unpacker_27__setstate_cython__, METH_O, __pyx_doc_7msgpack_9_cmsgpack_8Unpacker_26__setstate_cython__}, + {0, 0, 0, 0} +}; + +static PyTypeObject __pyx_type_7msgpack_9_cmsgpack_Unpacker = { + PyVarObject_HEAD_INIT(0, 0) + "msgpack._cmsgpack.Unpacker", /*tp_name*/ + sizeof(struct __pyx_obj_7msgpack_9_cmsgpack_Unpacker), /*tp_basicsize*/ + 0, /*tp_itemsize*/ + __pyx_tp_dealloc_7msgpack_9_cmsgpack_Unpacker, /*tp_dealloc*/ + 0, /*tp_print*/ + 0, /*tp_getattr*/ + 0, /*tp_setattr*/ + #if PY_MAJOR_VERSION < 3 + 0, /*tp_compare*/ + #endif + #if PY_MAJOR_VERSION >= 3 + 0, /*tp_as_async*/ + #endif + 0, /*tp_repr*/ + 0, /*tp_as_number*/ + 0, /*tp_as_sequence*/ + 0, /*tp_as_mapping*/ + 0, /*tp_hash*/ + 0, /*tp_call*/ + 0, /*tp_str*/ + 0, /*tp_getattro*/ + 0, /*tp_setattro*/ + 0, /*tp_as_buffer*/ + Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/ + "Unpacker(file_like=None, Py_ssize_t read_size=0, bool use_list=True, bool raw=True, bool strict_map_key=False, object_hook=None, object_pairs_hook=None, list_hook=None, encoding=None, unicode_errors=None, Py_ssize_t max_buffer_size=0, ext_hook=ExtType, Py_ssize_t max_str_len=-1, Py_ssize_t max_bin_len=-1, Py_ssize_t max_array_len=-1, Py_ssize_t max_map_len=-1, Py_ssize_t max_ext_len=-1)\nStreaming unpacker.\n\n Arguments:\n\n :param file_like:\n File-like object having `.read(n)` method.\n If specified, unpacker reads serialized data from it and :meth:`feed()` is not usable.\n\n :param int read_size:\n Used as `file_like.read(read_size)`. (default: `min(1024**2, max_buffer_size)`)\n\n :param bool use_list:\n If true, unpack msgpack array to Python list.\n Otherwise, unpack to Python tuple. (default: True)\n\n :param bool raw:\n If true, unpack msgpack raw to Python bytes (default).\n Otherwise, unpack to Python str (or unicode on Python 2) by decoding\n with UTF-8 encoding (recommended).\n Currently, the default is true, but it will be changed to false in\n near future. So you must specify it explicitly for keeping backward\n compatibility.\n\n *encoding* option which is deprecated overrides this option.\n\n :param bool strict_map_key:\n If true, only str or bytes are accepted for map (dict) keys.\n It's False by default for backward-compatibility.\n But it will be True from msgpack 1.0.\n\n :param callable object_hook:\n When specified, it should be callable.\n Unpacker calls it with a dict argument after unpacking msgpack map.\n (See also simplejson)\n\n :param callable object_pairs_hook:\n When specified, it should be callable.\n Unpacker calls it with a list of key-value pairs after unpacking msgpack map.\n (See also simplejson)\n\n :param int max_buffer_size:\n Limits size of data w""aiting unpacked. 0 means system's INT_MAX (default).\n Raises `BufferFull` exception when it is insufficient.\n You should set this parameter when unpacking data from untrusted source.\n\n :param int max_str_len:\n Deprecated, use *max_buffer_size* instead.\n Limits max length of str. (default: max_buffer_size or 1024*1024)\n\n :param int max_bin_len:\n Deprecated, use *max_buffer_size* instead.\n Limits max length of bin. (default: max_buffer_size or 1024*1024)\n\n :param int max_array_len:\n Limits max length of array. (default: max_buffer_size or 128*1024)\n\n :param int max_map_len:\n Limits max length of map. (default: max_buffer_size//2 or 32*1024)\n\n :param int max_ext_len:\n Deprecated, use *max_buffer_size* instead.\n Limits max size of ext type. (default: max_buffer_size or 1024*1024)\n\n :param str encoding:\n Deprecated, use ``raw=False`` instead.\n Encoding used for decoding msgpack raw.\n If it is None (default), msgpack raw is deserialized to Python bytes.\n\n :param str unicode_errors:\n Error handler used for decoding str type. (default: `'strict'`)\n\n\n Example of streaming deserialize from file-like object::\n\n unpacker = Unpacker(file_like, raw=False, max_buffer_size=10*1024*1024)\n for o in unpacker:\n process(o)\n\n Example of streaming deserialize from socket::\n\n unpacker = Unpacker(raw=False, max_buffer_size=10*1024*1024)\n while True:\n buf = sock.recv(1024**2)\n if not buf:\n break\n unpacker.feed(buf)\n for o in unpacker:\n process(o)\n\n Raises ``ExtraData`` when *packed* contains extra bytes.\n Raises ``OutOfData`` when *packed* is incomplete.\n Raises ``FormatError`` when *packed* is not valid msgpack.\n Raises ``StackError`` when *packed* contains too nested.\n Other exceptions ca""n be raised during unpacking.\n ", /*tp_doc*/ + __pyx_tp_traverse_7msgpack_9_cmsgpack_Unpacker, /*tp_traverse*/ + __pyx_tp_clear_7msgpack_9_cmsgpack_Unpacker, /*tp_clear*/ + 0, /*tp_richcompare*/ + 0, /*tp_weaklistoffset*/ + __pyx_pw_7msgpack_9_cmsgpack_8Unpacker_21__iter__, /*tp_iter*/ + __pyx_pw_7msgpack_9_cmsgpack_8Unpacker_23__next__, /*tp_iternext*/ + __pyx_methods_7msgpack_9_cmsgpack_Unpacker, /*tp_methods*/ + 0, /*tp_members*/ + 0, /*tp_getset*/ + 0, /*tp_base*/ + 0, /*tp_dict*/ + 0, /*tp_descr_get*/ + 0, /*tp_descr_set*/ + 0, /*tp_dictoffset*/ + __pyx_pw_7msgpack_9_cmsgpack_8Unpacker_5__init__, /*tp_init*/ + 0, /*tp_alloc*/ + __pyx_tp_new_7msgpack_9_cmsgpack_Unpacker, /*tp_new*/ + 0, /*tp_free*/ + 0, /*tp_is_gc*/ + 0, /*tp_bases*/ + 0, /*tp_mro*/ + 0, /*tp_cache*/ + 0, /*tp_subclasses*/ + 0, /*tp_weaklist*/ + 0, /*tp_del*/ + 0, /*tp_version_tag*/ + #if PY_VERSION_HEX >= 0x030400a1 + 0, /*tp_finalize*/ + #endif +}; + +static PyMethodDef __pyx_methods[] = { + {0, 0, 0, 0} +}; + +#if PY_MAJOR_VERSION >= 3 +#if CYTHON_PEP489_MULTI_PHASE_INIT +static PyObject* __pyx_pymod_create(PyObject *spec, PyModuleDef *def); /*proto*/ +static int __pyx_pymod_exec__cmsgpack(PyObject* module); /*proto*/ +static PyModuleDef_Slot __pyx_moduledef_slots[] = { + {Py_mod_create, (void*)__pyx_pymod_create}, + {Py_mod_exec, (void*)__pyx_pymod_exec__cmsgpack}, + {0, NULL} +}; +#endif + +static struct PyModuleDef __pyx_moduledef = { + PyModuleDef_HEAD_INIT, + "_cmsgpack", + 0, /* m_doc */ + #if CYTHON_PEP489_MULTI_PHASE_INIT + 0, /* m_size */ + #else + -1, /* m_size */ + #endif + __pyx_methods /* m_methods */, + #if CYTHON_PEP489_MULTI_PHASE_INIT + __pyx_moduledef_slots, /* m_slots */ + #else + NULL, /* m_reload */ + #endif + NULL, /* m_traverse */ + NULL, /* m_clear */ + NULL /* m_free */ +}; +#endif +#ifndef CYTHON_SMALL_CODE +#if defined(__clang__) + #define CYTHON_SMALL_CODE +#elif defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)) + #define CYTHON_SMALL_CODE __attribute__((cold)) +#else + #define CYTHON_SMALL_CODE +#endif +#endif + +static __Pyx_StringTabEntry __pyx_string_tab[] = { + {&__pyx_n_s_AssertionError, __pyx_k_AssertionError, sizeof(__pyx_k_AssertionError), 0, 0, 1, 1}, + {&__pyx_n_s_BufferError, __pyx_k_BufferError, sizeof(__pyx_k_BufferError), 0, 0, 1, 1}, + {&__pyx_n_s_BufferFull, __pyx_k_BufferFull, sizeof(__pyx_k_BufferFull), 0, 0, 1, 1}, + {&__pyx_kp_u_Cannot_decode_extended_type_with, __pyx_k_Cannot_decode_extended_type_with, sizeof(__pyx_k_Cannot_decode_extended_type_with), 0, 1, 0, 0}, + {&__pyx_n_s_DeprecationWarning, __pyx_k_DeprecationWarning, sizeof(__pyx_k_DeprecationWarning), 0, 0, 1, 1}, + {&__pyx_kp_u_EXT_data_is_too_large, __pyx_k_EXT_data_is_too_large, sizeof(__pyx_k_EXT_data_is_too_large), 0, 1, 0, 0}, + {&__pyx_n_s_ExtType, __pyx_k_ExtType, sizeof(__pyx_k_ExtType), 0, 0, 1, 1}, + {&__pyx_n_s_ExtraData, __pyx_k_ExtraData, sizeof(__pyx_k_ExtraData), 0, 0, 1, 1}, + {&__pyx_n_s_FormatError, __pyx_k_FormatError, sizeof(__pyx_k_FormatError), 0, 0, 1, 1}, + {&__pyx_kp_u_Integer_value_out_of_range, __pyx_k_Integer_value_out_of_range, sizeof(__pyx_k_Integer_value_out_of_range), 0, 1, 0, 0}, + {&__pyx_n_s_MemoryError, __pyx_k_MemoryError, sizeof(__pyx_k_MemoryError), 0, 0, 1, 1}, + {&__pyx_kp_u_No_more_data_to_unpack, __pyx_k_No_more_data_to_unpack, sizeof(__pyx_k_No_more_data_to_unpack), 0, 1, 0, 0}, + {&__pyx_n_s_NotImplementedError, __pyx_k_NotImplementedError, sizeof(__pyx_k_NotImplementedError), 0, 0, 1, 1}, + {&__pyx_n_s_OutOfData, __pyx_k_OutOfData, sizeof(__pyx_k_OutOfData), 0, 0, 1, 1}, + {&__pyx_n_s_OverflowError, __pyx_k_OverflowError, sizeof(__pyx_k_OverflowError), 0, 0, 1, 1}, + {&__pyx_n_s_Packer, __pyx_k_Packer, sizeof(__pyx_k_Packer), 0, 0, 1, 1}, + {&__pyx_n_s_RuntimeError, __pyx_k_RuntimeError, sizeof(__pyx_k_RuntimeError), 0, 0, 1, 1}, + {&__pyx_n_s_RuntimeWarning, __pyx_k_RuntimeWarning, sizeof(__pyx_k_RuntimeWarning), 0, 0, 1, 1}, + {&__pyx_n_s_StackError, __pyx_k_StackError, sizeof(__pyx_k_StackError), 0, 0, 1, 1}, + {&__pyx_n_s_StopIteration, __pyx_k_StopIteration, sizeof(__pyx_k_StopIteration), 0, 0, 1, 1}, + {&__pyx_n_s_TypeError, __pyx_k_TypeError, sizeof(__pyx_k_TypeError), 0, 0, 1, 1}, + {&__pyx_kp_u_Unable_to_allocate_internal_buff, 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+ #if CYTHON_PEP489_MULTI_PHASE_INIT + return (__pyx_m != NULL) ? 0 : -1; + #elif PY_MAJOR_VERSION >= 3 + return __pyx_m; + #else + return; + #endif +} + +/* --- Runtime support code --- */ +/* Refnanny */ +#if CYTHON_REFNANNY +static __Pyx_RefNannyAPIStruct *__Pyx_RefNannyImportAPI(const char *modname) { + PyObject *m = NULL, *p = NULL; + void *r = NULL; + m = PyImport_ImportModule(modname); + if (!m) goto end; + p = PyObject_GetAttrString(m, "RefNannyAPI"); + if (!p) goto end; + r = PyLong_AsVoidPtr(p); +end: + Py_XDECREF(p); + Py_XDECREF(m); + return (__Pyx_RefNannyAPIStruct *)r; +} +#endif + +/* PyObjectGetAttrStr */ +#if CYTHON_USE_TYPE_SLOTS +static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStr(PyObject* obj, PyObject* attr_name) { + PyTypeObject* tp = Py_TYPE(obj); + if (likely(tp->tp_getattro)) + return tp->tp_getattro(obj, attr_name); +#if PY_MAJOR_VERSION < 3 + if (likely(tp->tp_getattr)) + return tp->tp_getattr(obj, PyString_AS_STRING(attr_name)); +#endif + return PyObject_GetAttr(obj, attr_name); +} +#endif + +/* GetBuiltinName */ +static PyObject *__Pyx_GetBuiltinName(PyObject *name) { + PyObject* result = __Pyx_PyObject_GetAttrStr(__pyx_b, name); + if (unlikely(!result)) { + PyErr_Format(PyExc_NameError, +#if PY_MAJOR_VERSION >= 3 + "name '%U' is not defined", name); +#else + "name '%.200s' is not defined", PyString_AS_STRING(name)); +#endif + } + return result; +} + +/* RaiseArgTupleInvalid */ +static void __Pyx_RaiseArgtupleInvalid( + const char* func_name, + int exact, + Py_ssize_t num_min, + Py_ssize_t num_max, + Py_ssize_t num_found) +{ + Py_ssize_t num_expected; + const char *more_or_less; + if (num_found < num_min) { + num_expected = num_min; + more_or_less = "at least"; + } else { + num_expected = num_max; + more_or_less = "at most"; + } + if (exact) { + more_or_less = "exactly"; + } + PyErr_Format(PyExc_TypeError, + "%.200s() takes %.8s %" CYTHON_FORMAT_SSIZE_T "d positional argument%.1s (%" CYTHON_FORMAT_SSIZE_T "d given)", + func_name, more_or_less, num_expected, + (num_expected == 1) ? "" : "s", num_found); +} + +/* KeywordStringCheck */ +static int __Pyx_CheckKeywordStrings( + PyObject *kwdict, + const char* function_name, + int kw_allowed) +{ + PyObject* key = 0; + Py_ssize_t pos = 0; +#if CYTHON_COMPILING_IN_PYPY + if (!kw_allowed && PyDict_Next(kwdict, &pos, &key, 0)) + goto invalid_keyword; + return 1; +#else + while (PyDict_Next(kwdict, &pos, &key, 0)) { + #if PY_MAJOR_VERSION < 3 + if (unlikely(!PyString_Check(key))) + #endif + if (unlikely(!PyUnicode_Check(key))) + goto invalid_keyword_type; + } + if ((!kw_allowed) && unlikely(key)) + goto invalid_keyword; + return 1; +invalid_keyword_type: + PyErr_Format(PyExc_TypeError, + "%.200s() keywords must be strings", function_name); + return 0; +#endif +invalid_keyword: + PyErr_Format(PyExc_TypeError, + #if PY_MAJOR_VERSION < 3 + "%.200s() got an unexpected keyword argument '%.200s'", + function_name, PyString_AsString(key)); + #else + "%s() got an unexpected keyword argument '%U'", + function_name, key); + #endif + return 0; +} + +/* PyObjectCall */ +#if CYTHON_COMPILING_IN_CPYTHON +static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw) { + PyObject *result; + ternaryfunc call = func->ob_type->tp_call; + if (unlikely(!call)) + return PyObject_Call(func, arg, kw); + if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object"))) + return NULL; + result = (*call)(func, arg, kw); + Py_LeaveRecursiveCall(); + if (unlikely(!result) && unlikely(!PyErr_Occurred())) { + PyErr_SetString( + PyExc_SystemError, + "NULL result without error in PyObject_Call"); + } + return result; +} +#endif + +/* PyErrFetchRestore */ +#if CYTHON_FAST_THREAD_STATE +static CYTHON_INLINE void __Pyx_ErrRestoreInState(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) { + PyObject *tmp_type, *tmp_value, *tmp_tb; + tmp_type = tstate->curexc_type; + tmp_value = tstate->curexc_value; + tmp_tb = tstate->curexc_traceback; + tstate->curexc_type = type; + tstate->curexc_value = value; + tstate->curexc_traceback = tb; + Py_XDECREF(tmp_type); + Py_XDECREF(tmp_value); + Py_XDECREF(tmp_tb); +} +static CYTHON_INLINE void __Pyx_ErrFetchInState(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) { + *type = tstate->curexc_type; + *value = tstate->curexc_value; + *tb = tstate->curexc_traceback; + tstate->curexc_type = 0; + tstate->curexc_value = 0; + tstate->curexc_traceback = 0; +} +#endif + +/* RaiseException */ +#if PY_MAJOR_VERSION < 3 +static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, + CYTHON_UNUSED PyObject *cause) { + __Pyx_PyThreadState_declare + Py_XINCREF(type); + if (!value || value == Py_None) + value = NULL; + else + Py_INCREF(value); + if (!tb || tb == Py_None) + tb = NULL; + else { + Py_INCREF(tb); + if (!PyTraceBack_Check(tb)) { + PyErr_SetString(PyExc_TypeError, + "raise: arg 3 must be a traceback or None"); + goto raise_error; + } + } + if (PyType_Check(type)) { +#if CYTHON_COMPILING_IN_PYPY + if (!value) { + Py_INCREF(Py_None); + value = Py_None; + } +#endif + PyErr_NormalizeException(&type, &value, &tb); + } else { + if (value) { + PyErr_SetString(PyExc_TypeError, + "instance exception may not have a separate value"); + goto raise_error; + } + value = type; + type = (PyObject*) Py_TYPE(type); + Py_INCREF(type); + if (!PyType_IsSubtype((PyTypeObject *)type, (PyTypeObject *)PyExc_BaseException)) { + PyErr_SetString(PyExc_TypeError, + "raise: exception class must be a subclass of BaseException"); + goto raise_error; + } + } + __Pyx_PyThreadState_assign + __Pyx_ErrRestore(type, value, tb); + return; +raise_error: + Py_XDECREF(value); + Py_XDECREF(type); + Py_XDECREF(tb); + return; +} +#else +static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause) { + PyObject* owned_instance = NULL; + if (tb == Py_None) { + tb = 0; + } else if (tb && !PyTraceBack_Check(tb)) { + PyErr_SetString(PyExc_TypeError, + "raise: arg 3 must be a traceback or None"); + goto bad; + } + if (value == Py_None) + value = 0; + if (PyExceptionInstance_Check(type)) { + if (value) { + PyErr_SetString(PyExc_TypeError, + "instance exception may not have a separate value"); + goto bad; + } + value = type; + type = (PyObject*) Py_TYPE(value); + } else if (PyExceptionClass_Check(type)) { + PyObject *instance_class = NULL; + if (value && PyExceptionInstance_Check(value)) { + instance_class = (PyObject*) Py_TYPE(value); + if (instance_class != type) { + int is_subclass = PyObject_IsSubclass(instance_class, type); + if (!is_subclass) { + instance_class = NULL; + } else if (unlikely(is_subclass == -1)) { + goto bad; + } else { + type = instance_class; + } + } + } + if (!instance_class) { + PyObject *args; + if (!value) + args = PyTuple_New(0); + else if (PyTuple_Check(value)) { + Py_INCREF(value); + args = value; + } else + args = PyTuple_Pack(1, value); + if (!args) + goto bad; + owned_instance = PyObject_Call(type, args, NULL); + Py_DECREF(args); + if (!owned_instance) + goto bad; + value = owned_instance; + if (!PyExceptionInstance_Check(value)) { + PyErr_Format(PyExc_TypeError, + "calling %R should have returned an instance of " + "BaseException, not %R", + type, Py_TYPE(value)); + goto bad; + } + } + } else { + PyErr_SetString(PyExc_TypeError, + "raise: exception class must be a subclass of BaseException"); + goto bad; + } + if (cause) { + PyObject *fixed_cause; + if (cause == Py_None) { + fixed_cause = NULL; + } else if (PyExceptionClass_Check(cause)) { + fixed_cause = PyObject_CallObject(cause, NULL); + if (fixed_cause == NULL) + goto bad; + } else if (PyExceptionInstance_Check(cause)) { + fixed_cause = cause; + Py_INCREF(fixed_cause); + } else { + PyErr_SetString(PyExc_TypeError, + "exception causes must derive from " + "BaseException"); + goto bad; + } + PyException_SetCause(value, fixed_cause); + } + PyErr_SetObject(type, value); + if (tb) { +#if CYTHON_COMPILING_IN_PYPY + PyObject *tmp_type, *tmp_value, *tmp_tb; + PyErr_Fetch(&tmp_type, &tmp_value, &tmp_tb); + Py_INCREF(tb); + PyErr_Restore(tmp_type, tmp_value, tb); + Py_XDECREF(tmp_tb); +#else + PyThreadState *tstate = __Pyx_PyThreadState_Current; + PyObject* tmp_tb = tstate->curexc_traceback; + if (tb != tmp_tb) { + Py_INCREF(tb); + tstate->curexc_traceback = tb; + Py_XDECREF(tmp_tb); + } +#endif + } +bad: + Py_XDECREF(owned_instance); + return; +} +#endif + +/* RaiseDoubleKeywords */ +static void __Pyx_RaiseDoubleKeywordsError( + const char* func_name, + PyObject* kw_name) +{ + PyErr_Format(PyExc_TypeError, + #if PY_MAJOR_VERSION >= 3 + "%s() got multiple values for keyword argument '%U'", func_name, kw_name); + #else + "%s() got multiple values for keyword argument '%s'", func_name, + PyString_AsString(kw_name)); + #endif +} + +/* ParseKeywords */ +static int __Pyx_ParseOptionalKeywords( + PyObject *kwds, + PyObject **argnames[], + PyObject *kwds2, + PyObject *values[], + Py_ssize_t num_pos_args, + const char* function_name) +{ + PyObject *key = 0, *value = 0; + Py_ssize_t pos = 0; + PyObject*** name; + PyObject*** first_kw_arg = argnames + num_pos_args; + while (PyDict_Next(kwds, &pos, &key, &value)) { + name = first_kw_arg; + while (*name && (**name != key)) name++; + if (*name) { + values[name-argnames] = value; + continue; + } + name = first_kw_arg; + #if PY_MAJOR_VERSION < 3 + if (likely(PyString_CheckExact(key)) || likely(PyString_Check(key))) { + while (*name) { + if ((CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**name) == PyString_GET_SIZE(key)) + && _PyString_Eq(**name, key)) { + values[name-argnames] = value; + break; + } + name++; + } + if (*name) continue; + else { + PyObject*** argname = argnames; + while (argname != first_kw_arg) { + if ((**argname == key) || ( + (CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**argname) == PyString_GET_SIZE(key)) + && _PyString_Eq(**argname, key))) { + goto arg_passed_twice; + } + argname++; + } + } + } else + #endif + if (likely(PyUnicode_Check(key))) { + while (*name) { + int cmp = (**name == key) ? 0 : + #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3 + (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 : + #endif + PyUnicode_Compare(**name, key); + if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad; + if (cmp == 0) { + values[name-argnames] = value; + break; + } + name++; + } + if (*name) continue; + else { + PyObject*** argname = argnames; + while (argname != first_kw_arg) { + int cmp = (**argname == key) ? 0 : + #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3 + (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 : + #endif + PyUnicode_Compare(**argname, key); + if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad; + if (cmp == 0) goto arg_passed_twice; + argname++; + } + } + } else + goto invalid_keyword_type; + if (kwds2) { + if (unlikely(PyDict_SetItem(kwds2, key, value))) goto bad; + } else { + goto invalid_keyword; + } + } + return 0; +arg_passed_twice: + __Pyx_RaiseDoubleKeywordsError(function_name, key); + goto bad; +invalid_keyword_type: + PyErr_Format(PyExc_TypeError, + "%.200s() keywords must be strings", function_name); + goto bad; +invalid_keyword: + PyErr_Format(PyExc_TypeError, + #if PY_MAJOR_VERSION < 3 + "%.200s() got an unexpected keyword argument '%.200s'", + function_name, PyString_AsString(key)); + #else + "%s() got an unexpected keyword argument '%U'", + function_name, key); + #endif +bad: + return -1; +} + +/* ExtTypeTest */ +static CYTHON_INLINE int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type) { + if (unlikely(!type)) { + PyErr_SetString(PyExc_SystemError, "Missing type object"); + return 0; + } + if (likely(__Pyx_TypeCheck(obj, type))) + return 1; + PyErr_Format(PyExc_TypeError, "Cannot convert %.200s to %.200s", + Py_TYPE(obj)->tp_name, type->tp_name); + return 0; +} + +/* GetTopmostException */ +#if CYTHON_USE_EXC_INFO_STACK +static _PyErr_StackItem * +__Pyx_PyErr_GetTopmostException(PyThreadState *tstate) +{ + _PyErr_StackItem *exc_info = tstate->exc_info; + while ((exc_info->exc_type == NULL || exc_info->exc_type == Py_None) && + exc_info->previous_item != NULL) + { + exc_info = exc_info->previous_item; + } + return exc_info; +} +#endif + +/* SaveResetException */ +#if CYTHON_FAST_THREAD_STATE +static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) { + #if CYTHON_USE_EXC_INFO_STACK + _PyErr_StackItem *exc_info = __Pyx_PyErr_GetTopmostException(tstate); + *type = exc_info->exc_type; + *value = exc_info->exc_value; + *tb = exc_info->exc_traceback; + #else + *type = tstate->exc_type; + *value = tstate->exc_value; + *tb = tstate->exc_traceback; + #endif + Py_XINCREF(*type); + Py_XINCREF(*value); + Py_XINCREF(*tb); +} +static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) { + PyObject *tmp_type, *tmp_value, *tmp_tb; + #if CYTHON_USE_EXC_INFO_STACK + _PyErr_StackItem *exc_info = tstate->exc_info; + tmp_type = exc_info->exc_type; + tmp_value = exc_info->exc_value; + tmp_tb = exc_info->exc_traceback; + exc_info->exc_type = type; + exc_info->exc_value = value; + exc_info->exc_traceback = tb; + #else + tmp_type = tstate->exc_type; + tmp_value = tstate->exc_value; + tmp_tb = tstate->exc_traceback; + tstate->exc_type = type; + tstate->exc_value = value; + tstate->exc_traceback = tb; + #endif + Py_XDECREF(tmp_type); + Py_XDECREF(tmp_value); + Py_XDECREF(tmp_tb); +} +#endif + +/* PyErrExceptionMatches */ +#if CYTHON_FAST_THREAD_STATE +static int __Pyx_PyErr_ExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) { + Py_ssize_t i, n; + n = PyTuple_GET_SIZE(tuple); +#if PY_MAJOR_VERSION >= 3 + for (i=0; icurexc_type; + if (exc_type == err) return 1; + if (unlikely(!exc_type)) return 0; + if (unlikely(PyTuple_Check(err))) + return __Pyx_PyErr_ExceptionMatchesTuple(exc_type, err); + return __Pyx_PyErr_GivenExceptionMatches(exc_type, err); +} +#endif + +/* GetException */ +#if CYTHON_FAST_THREAD_STATE +static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) +#else +static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb) +#endif +{ + PyObject *local_type, *local_value, *local_tb; +#if CYTHON_FAST_THREAD_STATE + PyObject *tmp_type, *tmp_value, *tmp_tb; + local_type = tstate->curexc_type; + local_value = tstate->curexc_value; + local_tb = tstate->curexc_traceback; + tstate->curexc_type = 0; + tstate->curexc_value = 0; + tstate->curexc_traceback = 0; +#else + PyErr_Fetch(&local_type, &local_value, &local_tb); +#endif + PyErr_NormalizeException(&local_type, &local_value, &local_tb); +#if CYTHON_FAST_THREAD_STATE + if (unlikely(tstate->curexc_type)) +#else + if (unlikely(PyErr_Occurred())) +#endif + goto bad; + #if PY_MAJOR_VERSION >= 3 + if (local_tb) { + if (unlikely(PyException_SetTraceback(local_value, local_tb) < 0)) + goto bad; + } + #endif + Py_XINCREF(local_tb); + Py_XINCREF(local_type); + Py_XINCREF(local_value); + *type = local_type; + *value = local_value; + *tb = local_tb; +#if CYTHON_FAST_THREAD_STATE + #if CYTHON_USE_EXC_INFO_STACK + { + _PyErr_StackItem *exc_info = tstate->exc_info; + tmp_type = exc_info->exc_type; + tmp_value = exc_info->exc_value; + tmp_tb = exc_info->exc_traceback; + exc_info->exc_type = local_type; + exc_info->exc_value = local_value; + exc_info->exc_traceback = local_tb; + } + #else + tmp_type = tstate->exc_type; + tmp_value = tstate->exc_value; + tmp_tb = tstate->exc_traceback; + tstate->exc_type = local_type; + tstate->exc_value = local_value; + tstate->exc_traceback = local_tb; + #endif + Py_XDECREF(tmp_type); + Py_XDECREF(tmp_value); + Py_XDECREF(tmp_tb); +#else + PyErr_SetExcInfo(local_type, local_value, local_tb); +#endif + return 0; +bad: + *type = 0; + *value = 0; + *tb = 0; + Py_XDECREF(local_type); + Py_XDECREF(local_value); + Py_XDECREF(local_tb); + return -1; +} + +/* PyCFunctionFastCall */ +#if CYTHON_FAST_PYCCALL +static CYTHON_INLINE PyObject * __Pyx_PyCFunction_FastCall(PyObject *func_obj, PyObject **args, Py_ssize_t nargs) { + PyCFunctionObject *func = (PyCFunctionObject*)func_obj; + PyCFunction meth = PyCFunction_GET_FUNCTION(func); + PyObject *self = PyCFunction_GET_SELF(func); + int flags = PyCFunction_GET_FLAGS(func); + assert(PyCFunction_Check(func)); + assert(METH_FASTCALL == (flags & ~(METH_CLASS | METH_STATIC | METH_COEXIST | METH_KEYWORDS | METH_STACKLESS))); + assert(nargs >= 0); + assert(nargs == 0 || args != NULL); + /* _PyCFunction_FastCallDict() must not be called with an exception set, + because it may clear it (directly or indirectly) and so the + caller loses its exception */ + assert(!PyErr_Occurred()); + if ((PY_VERSION_HEX < 0x030700A0) || unlikely(flags & METH_KEYWORDS)) { + return (*((__Pyx_PyCFunctionFastWithKeywords)(void*)meth)) (self, args, nargs, NULL); + } else { + return (*((__Pyx_PyCFunctionFast)(void*)meth)) (self, args, nargs); + } +} +#endif + +/* PyFunctionFastCall */ +#if CYTHON_FAST_PYCALL +static PyObject* __Pyx_PyFunction_FastCallNoKw(PyCodeObject *co, PyObject **args, Py_ssize_t na, + PyObject *globals) { + PyFrameObject *f; + PyThreadState *tstate = __Pyx_PyThreadState_Current; + PyObject **fastlocals; + Py_ssize_t i; + PyObject *result; + assert(globals != NULL); + /* XXX Perhaps we should create a specialized + PyFrame_New() that doesn't take locals, but does + take builtins without sanity checking them. + */ + assert(tstate != NULL); + f = PyFrame_New(tstate, co, globals, NULL); + if (f == NULL) { + return NULL; + } + fastlocals = __Pyx_PyFrame_GetLocalsplus(f); + for (i = 0; i < na; i++) { + Py_INCREF(*args); + fastlocals[i] = *args++; + } + result = PyEval_EvalFrameEx(f,0); + ++tstate->recursion_depth; + Py_DECREF(f); + --tstate->recursion_depth; + return result; +} +#if 1 || PY_VERSION_HEX < 0x030600B1 +static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, int nargs, PyObject *kwargs) { + PyCodeObject *co = (PyCodeObject *)PyFunction_GET_CODE(func); + PyObject *globals = PyFunction_GET_GLOBALS(func); + PyObject *argdefs = PyFunction_GET_DEFAULTS(func); + PyObject *closure; +#if PY_MAJOR_VERSION >= 3 + PyObject *kwdefs; +#endif + PyObject *kwtuple, **k; + PyObject **d; + Py_ssize_t nd; + Py_ssize_t nk; + PyObject *result; + assert(kwargs == NULL || PyDict_Check(kwargs)); + nk = kwargs ? PyDict_Size(kwargs) : 0; + if (Py_EnterRecursiveCall((char*)" while calling a Python object")) { + return NULL; + } + if ( +#if PY_MAJOR_VERSION >= 3 + co->co_kwonlyargcount == 0 && +#endif + likely(kwargs == NULL || nk == 0) && + co->co_flags == (CO_OPTIMIZED | CO_NEWLOCALS | CO_NOFREE)) { + if (argdefs == NULL && co->co_argcount == nargs) { + result = __Pyx_PyFunction_FastCallNoKw(co, args, nargs, globals); + goto done; + } + else if (nargs == 0 && argdefs != NULL + && co->co_argcount == Py_SIZE(argdefs)) { + /* function called with no arguments, but all parameters have + a default value: use default values as arguments .*/ + args = &PyTuple_GET_ITEM(argdefs, 0); + result =__Pyx_PyFunction_FastCallNoKw(co, args, Py_SIZE(argdefs), globals); + goto done; + } + } + if (kwargs != NULL) { + Py_ssize_t pos, i; + kwtuple = PyTuple_New(2 * nk); + if (kwtuple == NULL) { + result = NULL; + goto done; + } + k = &PyTuple_GET_ITEM(kwtuple, 0); + pos = i = 0; + while (PyDict_Next(kwargs, &pos, &k[i], &k[i+1])) { + Py_INCREF(k[i]); + Py_INCREF(k[i+1]); + i += 2; + } + nk = i / 2; + } + else { + kwtuple = NULL; + k = NULL; + } + closure = PyFunction_GET_CLOSURE(func); +#if PY_MAJOR_VERSION >= 3 + kwdefs = PyFunction_GET_KW_DEFAULTS(func); +#endif + if (argdefs != NULL) { + d = &PyTuple_GET_ITEM(argdefs, 0); + nd = Py_SIZE(argdefs); + } + else { + d = NULL; + nd = 0; + } +#if PY_MAJOR_VERSION >= 3 + result = PyEval_EvalCodeEx((PyObject*)co, globals, (PyObject *)NULL, + args, nargs, + k, (int)nk, + d, (int)nd, kwdefs, closure); +#else + result = PyEval_EvalCodeEx(co, globals, (PyObject *)NULL, + args, nargs, + k, (int)nk, + d, (int)nd, closure); +#endif + Py_XDECREF(kwtuple); +done: + Py_LeaveRecursiveCall(); + return result; +} +#endif +#endif + +/* PyObjectCall2Args */ +static CYTHON_UNUSED PyObject* __Pyx_PyObject_Call2Args(PyObject* function, PyObject* arg1, PyObject* arg2) { + PyObject *args, *result = NULL; + #if CYTHON_FAST_PYCALL + if (PyFunction_Check(function)) { + PyObject *args[2] = {arg1, arg2}; + return __Pyx_PyFunction_FastCall(function, args, 2); + } + #endif + #if CYTHON_FAST_PYCCALL + if (__Pyx_PyFastCFunction_Check(function)) { + PyObject *args[2] = {arg1, arg2}; + return __Pyx_PyCFunction_FastCall(function, args, 2); + } + #endif + args = PyTuple_New(2); + if (unlikely(!args)) goto done; + Py_INCREF(arg1); + PyTuple_SET_ITEM(args, 0, arg1); + Py_INCREF(arg2); + PyTuple_SET_ITEM(args, 1, arg2); + Py_INCREF(function); + result = __Pyx_PyObject_Call(function, args, NULL); + Py_DECREF(args); + Py_DECREF(function); +done: + return result; +} + +/* PyObjectCallMethO */ +#if CYTHON_COMPILING_IN_CPYTHON +static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg) { + PyObject *self, *result; + PyCFunction cfunc; + cfunc = PyCFunction_GET_FUNCTION(func); + self = PyCFunction_GET_SELF(func); + if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object"))) + return NULL; + result = cfunc(self, arg); + Py_LeaveRecursiveCall(); + if (unlikely(!result) && unlikely(!PyErr_Occurred())) { + PyErr_SetString( + PyExc_SystemError, + "NULL result without error in PyObject_Call"); + } + return result; +} +#endif + +/* PyObjectCallOneArg */ +#if CYTHON_COMPILING_IN_CPYTHON +static PyObject* __Pyx__PyObject_CallOneArg(PyObject *func, PyObject *arg) { + PyObject *result; + PyObject *args = PyTuple_New(1); + if (unlikely(!args)) return NULL; + Py_INCREF(arg); + PyTuple_SET_ITEM(args, 0, arg); + result = __Pyx_PyObject_Call(func, args, NULL); + Py_DECREF(args); + return result; +} +static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) { +#if CYTHON_FAST_PYCALL + if (PyFunction_Check(func)) { + return __Pyx_PyFunction_FastCall(func, &arg, 1); + } +#endif + if (likely(PyCFunction_Check(func))) { + if (likely(PyCFunction_GET_FLAGS(func) & METH_O)) { + return __Pyx_PyObject_CallMethO(func, arg); +#if CYTHON_FAST_PYCCALL + } else if (PyCFunction_GET_FLAGS(func) & METH_FASTCALL) { + return __Pyx_PyCFunction_FastCall(func, &arg, 1); +#endif + } + } + return __Pyx__PyObject_CallOneArg(func, arg); +} +#else +static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) { + PyObject *result; + PyObject *args = PyTuple_Pack(1, arg); + if (unlikely(!args)) return NULL; + result = __Pyx_PyObject_Call(func, args, NULL); + Py_DECREF(args); + return result; +} +#endif + +/* SwapException */ +#if CYTHON_FAST_THREAD_STATE +static CYTHON_INLINE void __Pyx__ExceptionSwap(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) { + PyObject *tmp_type, *tmp_value, *tmp_tb; + #if CYTHON_USE_EXC_INFO_STACK + _PyErr_StackItem *exc_info = tstate->exc_info; + tmp_type = exc_info->exc_type; + tmp_value = exc_info->exc_value; + tmp_tb = exc_info->exc_traceback; + exc_info->exc_type = *type; + exc_info->exc_value = *value; + exc_info->exc_traceback = *tb; + #else + tmp_type = tstate->exc_type; + tmp_value = tstate->exc_value; + tmp_tb = tstate->exc_traceback; + tstate->exc_type = *type; + tstate->exc_value = *value; + tstate->exc_traceback = *tb; + #endif + *type = tmp_type; + *value = tmp_value; + *tb = tmp_tb; +} +#else +static CYTHON_INLINE void __Pyx_ExceptionSwap(PyObject **type, PyObject **value, PyObject **tb) { + PyObject *tmp_type, *tmp_value, *tmp_tb; + PyErr_GetExcInfo(&tmp_type, &tmp_value, &tmp_tb); + PyErr_SetExcInfo(*type, *value, *tb); + *type = tmp_type; + *value = tmp_value; + *tb = tmp_tb; +} +#endif + +/* IterFinish */ +static CYTHON_INLINE int __Pyx_IterFinish(void) { +#if CYTHON_FAST_THREAD_STATE + PyThreadState *tstate = __Pyx_PyThreadState_Current; + PyObject* exc_type = tstate->curexc_type; + if (unlikely(exc_type)) { + if (likely(__Pyx_PyErr_GivenExceptionMatches(exc_type, PyExc_StopIteration))) { + PyObject *exc_value, *exc_tb; + exc_value = tstate->curexc_value; + exc_tb = tstate->curexc_traceback; + tstate->curexc_type = 0; + tstate->curexc_value = 0; + tstate->curexc_traceback = 0; + Py_DECREF(exc_type); + Py_XDECREF(exc_value); + Py_XDECREF(exc_tb); + return 0; + } else { + return -1; + } + } + return 0; +#else + if (unlikely(PyErr_Occurred())) { + if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) { + PyErr_Clear(); + return 0; + } else { + return -1; + } + } + return 0; +#endif +} + +/* PyObjectCallNoArg */ +#if CYTHON_COMPILING_IN_CPYTHON +static CYTHON_INLINE PyObject* __Pyx_PyObject_CallNoArg(PyObject *func) { +#if CYTHON_FAST_PYCALL + if (PyFunction_Check(func)) { + return __Pyx_PyFunction_FastCall(func, NULL, 0); + } +#endif +#ifdef __Pyx_CyFunction_USED + if (likely(PyCFunction_Check(func) || __Pyx_CyFunction_Check(func))) +#else + if (likely(PyCFunction_Check(func))) +#endif + { + if (likely(PyCFunction_GET_FLAGS(func) & METH_NOARGS)) { + return __Pyx_PyObject_CallMethO(func, NULL); + } + } + return __Pyx_PyObject_Call(func, __pyx_empty_tuple, NULL); +} +#endif + +/* PyObjectGetMethod */ +static int __Pyx_PyObject_GetMethod(PyObject *obj, PyObject *name, PyObject **method) { + PyObject *attr; +#if CYTHON_UNPACK_METHODS && CYTHON_COMPILING_IN_CPYTHON && CYTHON_USE_PYTYPE_LOOKUP + PyTypeObject *tp = Py_TYPE(obj); + PyObject *descr; + descrgetfunc f = NULL; + PyObject **dictptr, *dict; + int meth_found = 0; + assert (*method == NULL); + if (unlikely(tp->tp_getattro != PyObject_GenericGetAttr)) { + attr = __Pyx_PyObject_GetAttrStr(obj, name); + goto try_unpack; + } + if (unlikely(tp->tp_dict == NULL) && unlikely(PyType_Ready(tp) < 0)) { + return 0; + } + descr = _PyType_Lookup(tp, name); + if (likely(descr != NULL)) { + Py_INCREF(descr); +#if PY_MAJOR_VERSION >= 3 + #ifdef __Pyx_CyFunction_USED + if (likely(PyFunction_Check(descr) || (Py_TYPE(descr) == &PyMethodDescr_Type) || __Pyx_CyFunction_Check(descr))) + #else + if (likely(PyFunction_Check(descr) || (Py_TYPE(descr) == &PyMethodDescr_Type))) + #endif +#else + #ifdef __Pyx_CyFunction_USED + if (likely(PyFunction_Check(descr) || __Pyx_CyFunction_Check(descr))) + #else + if (likely(PyFunction_Check(descr))) + #endif +#endif + { + meth_found = 1; + } else { + f = Py_TYPE(descr)->tp_descr_get; + if (f != NULL && PyDescr_IsData(descr)) { + attr = f(descr, obj, (PyObject *)Py_TYPE(obj)); + Py_DECREF(descr); + goto try_unpack; + } + } + } + dictptr = _PyObject_GetDictPtr(obj); + if (dictptr != NULL && (dict = *dictptr) != NULL) { + Py_INCREF(dict); + attr = __Pyx_PyDict_GetItemStr(dict, name); + if (attr != NULL) { + Py_INCREF(attr); + Py_DECREF(dict); + Py_XDECREF(descr); + goto try_unpack; + } + Py_DECREF(dict); + } + if (meth_found) { + *method = descr; + return 1; + } + if (f != NULL) { + attr = f(descr, obj, (PyObject *)Py_TYPE(obj)); + Py_DECREF(descr); + goto try_unpack; + } + if (descr != NULL) { + *method = descr; + return 0; + } + PyErr_Format(PyExc_AttributeError, +#if PY_MAJOR_VERSION >= 3 + "'%.50s' object has no attribute '%U'", + tp->tp_name, name); +#else + "'%.50s' object has no attribute '%.400s'", + tp->tp_name, PyString_AS_STRING(name)); +#endif + return 0; +#else + attr = __Pyx_PyObject_GetAttrStr(obj, name); + goto try_unpack; +#endif +try_unpack: +#if CYTHON_UNPACK_METHODS + if (likely(attr) && PyMethod_Check(attr) && likely(PyMethod_GET_SELF(attr) == obj)) { + PyObject *function = PyMethod_GET_FUNCTION(attr); + Py_INCREF(function); + Py_DECREF(attr); + *method = function; + return 1; + } +#endif + *method = attr; + return 0; +} + +/* PyObjectCallMethod0 */ +static PyObject* __Pyx_PyObject_CallMethod0(PyObject* obj, PyObject* method_name) { + PyObject *method = NULL, *result = NULL; + int is_method = __Pyx_PyObject_GetMethod(obj, method_name, &method); + if (likely(is_method)) { + result = __Pyx_PyObject_CallOneArg(method, obj); + Py_DECREF(method); + return result; + } + if (unlikely(!method)) goto bad; + result = __Pyx_PyObject_CallNoArg(method); + Py_DECREF(method); +bad: + return result; +} + +/* RaiseNeedMoreValuesToUnpack */ +static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index) { + PyErr_Format(PyExc_ValueError, + "need more than %" CYTHON_FORMAT_SSIZE_T "d value%.1s to unpack", + index, (index == 1) ? "" : "s"); +} + +/* RaiseTooManyValuesToUnpack */ +static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected) { + PyErr_Format(PyExc_ValueError, + "too many values to unpack (expected %" CYTHON_FORMAT_SSIZE_T "d)", expected); +} + +/* UnpackItemEndCheck */ +static int __Pyx_IternextUnpackEndCheck(PyObject *retval, Py_ssize_t expected) { + if (unlikely(retval)) { + Py_DECREF(retval); + __Pyx_RaiseTooManyValuesError(expected); + return -1; + } else { + return __Pyx_IterFinish(); + } + return 0; +} + +/* RaiseNoneIterError */ +static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void) { + PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); +} + +/* UnpackTupleError */ +static void __Pyx_UnpackTupleError(PyObject *t, Py_ssize_t index) { + if (t == Py_None) { + __Pyx_RaiseNoneNotIterableError(); + } else if (PyTuple_GET_SIZE(t) < index) { + __Pyx_RaiseNeedMoreValuesError(PyTuple_GET_SIZE(t)); + } else { + __Pyx_RaiseTooManyValuesError(index); + } +} + +/* UnpackTuple2 */ +static CYTHON_INLINE int __Pyx_unpack_tuple2_exact( + PyObject* tuple, PyObject** pvalue1, PyObject** pvalue2, int decref_tuple) { + PyObject *value1 = NULL, *value2 = NULL; +#if CYTHON_COMPILING_IN_PYPY + value1 = PySequence_ITEM(tuple, 0); if (unlikely(!value1)) goto bad; + value2 = PySequence_ITEM(tuple, 1); if (unlikely(!value2)) goto bad; +#else + value1 = PyTuple_GET_ITEM(tuple, 0); Py_INCREF(value1); + value2 = PyTuple_GET_ITEM(tuple, 1); Py_INCREF(value2); +#endif + if (decref_tuple) { + Py_DECREF(tuple); + } + *pvalue1 = value1; + *pvalue2 = value2; + return 0; +#if CYTHON_COMPILING_IN_PYPY +bad: + Py_XDECREF(value1); + Py_XDECREF(value2); + if (decref_tuple) { Py_XDECREF(tuple); } + return -1; +#endif +} +static int __Pyx_unpack_tuple2_generic(PyObject* tuple, PyObject** pvalue1, PyObject** pvalue2, + int has_known_size, int decref_tuple) { + Py_ssize_t index; + PyObject *value1 = NULL, *value2 = NULL, *iter = NULL; + iternextfunc iternext; + iter = PyObject_GetIter(tuple); + if (unlikely(!iter)) goto bad; + if (decref_tuple) { Py_DECREF(tuple); tuple = NULL; } + iternext = Py_TYPE(iter)->tp_iternext; + value1 = iternext(iter); if (unlikely(!value1)) { index = 0; goto unpacking_failed; } + value2 = iternext(iter); if (unlikely(!value2)) { index = 1; goto unpacking_failed; } + if (!has_known_size && unlikely(__Pyx_IternextUnpackEndCheck(iternext(iter), 2))) goto bad; + Py_DECREF(iter); + *pvalue1 = value1; + *pvalue2 = value2; + return 0; +unpacking_failed: + if (!has_known_size && __Pyx_IterFinish() == 0) + __Pyx_RaiseNeedMoreValuesError(index); +bad: + Py_XDECREF(iter); + Py_XDECREF(value1); + Py_XDECREF(value2); + if (decref_tuple) { Py_XDECREF(tuple); } + return -1; +} + +/* dict_iter */ +static CYTHON_INLINE PyObject* __Pyx_dict_iterator(PyObject* iterable, int is_dict, PyObject* method_name, + Py_ssize_t* p_orig_length, int* p_source_is_dict) { + is_dict = is_dict || likely(PyDict_CheckExact(iterable)); + *p_source_is_dict = is_dict; + if (is_dict) { +#if !CYTHON_COMPILING_IN_PYPY + *p_orig_length = PyDict_Size(iterable); + Py_INCREF(iterable); + return iterable; +#elif PY_MAJOR_VERSION >= 3 + static PyObject *py_items = NULL, *py_keys = NULL, *py_values = NULL; + PyObject **pp = NULL; + if (method_name) { + const char *name = PyUnicode_AsUTF8(method_name); + if (strcmp(name, "iteritems") == 0) pp = &py_items; + else if (strcmp(name, "iterkeys") == 0) pp = &py_keys; + else if (strcmp(name, "itervalues") == 0) pp = &py_values; + if (pp) { + if (!*pp) { + *pp = PyUnicode_FromString(name + 4); + if (!*pp) + return NULL; + } + method_name = *pp; + } + } +#endif + } + *p_orig_length = 0; + if (method_name) { + PyObject* iter; + iterable = __Pyx_PyObject_CallMethod0(iterable, method_name); + if (!iterable) + return NULL; +#if !CYTHON_COMPILING_IN_PYPY + if (PyTuple_CheckExact(iterable) || PyList_CheckExact(iterable)) + return iterable; +#endif + iter = PyObject_GetIter(iterable); + Py_DECREF(iterable); + return iter; + } + return PyObject_GetIter(iterable); +} +static CYTHON_INLINE int __Pyx_dict_iter_next( + PyObject* iter_obj, CYTHON_NCP_UNUSED Py_ssize_t orig_length, CYTHON_NCP_UNUSED Py_ssize_t* ppos, + PyObject** pkey, PyObject** pvalue, PyObject** pitem, int source_is_dict) { + PyObject* next_item; +#if !CYTHON_COMPILING_IN_PYPY + if (source_is_dict) { + PyObject *key, *value; + if (unlikely(orig_length != PyDict_Size(iter_obj))) { + PyErr_SetString(PyExc_RuntimeError, "dictionary changed size during iteration"); + return -1; + } + if (unlikely(!PyDict_Next(iter_obj, ppos, &key, &value))) { + return 0; + } + if (pitem) { + PyObject* tuple = PyTuple_New(2); + if (unlikely(!tuple)) { + return -1; + } + Py_INCREF(key); + Py_INCREF(value); + PyTuple_SET_ITEM(tuple, 0, key); + PyTuple_SET_ITEM(tuple, 1, value); + *pitem = tuple; + } else { + if (pkey) { + Py_INCREF(key); + *pkey = key; + } + if (pvalue) { + Py_INCREF(value); + *pvalue = value; + } + } + return 1; + } else if (PyTuple_CheckExact(iter_obj)) { + Py_ssize_t pos = *ppos; + if (unlikely(pos >= PyTuple_GET_SIZE(iter_obj))) return 0; + *ppos = pos + 1; + next_item = PyTuple_GET_ITEM(iter_obj, pos); + Py_INCREF(next_item); + } else if (PyList_CheckExact(iter_obj)) { + Py_ssize_t pos = *ppos; + if (unlikely(pos >= PyList_GET_SIZE(iter_obj))) return 0; + *ppos = pos + 1; + next_item = PyList_GET_ITEM(iter_obj, pos); + Py_INCREF(next_item); + } else +#endif + { + next_item = PyIter_Next(iter_obj); + if (unlikely(!next_item)) { + return __Pyx_IterFinish(); + } + } + if (pitem) { + *pitem = next_item; + } else if (pkey && pvalue) { + if (__Pyx_unpack_tuple2(next_item, pkey, pvalue, source_is_dict, source_is_dict, 1)) + return -1; + } else if (pkey) { + *pkey = next_item; + } else { + *pvalue = next_item; + } + return 1; +} + +/* PyDictVersioning */ +#if CYTHON_USE_DICT_VERSIONS && CYTHON_USE_TYPE_SLOTS +static CYTHON_INLINE PY_UINT64_T __Pyx_get_tp_dict_version(PyObject *obj) { + PyObject *dict = Py_TYPE(obj)->tp_dict; + return likely(dict) ? __PYX_GET_DICT_VERSION(dict) : 0; +} +static CYTHON_INLINE PY_UINT64_T __Pyx_get_object_dict_version(PyObject *obj) { + PyObject **dictptr = NULL; + Py_ssize_t offset = Py_TYPE(obj)->tp_dictoffset; + if (offset) { +#if CYTHON_COMPILING_IN_CPYTHON + dictptr = (likely(offset > 0)) ? (PyObject **) ((char *)obj + offset) : _PyObject_GetDictPtr(obj); +#else + dictptr = _PyObject_GetDictPtr(obj); +#endif + } + return (dictptr && *dictptr) ? __PYX_GET_DICT_VERSION(*dictptr) : 0; +} +static CYTHON_INLINE int __Pyx_object_dict_version_matches(PyObject* obj, PY_UINT64_T tp_dict_version, PY_UINT64_T obj_dict_version) { + PyObject *dict = Py_TYPE(obj)->tp_dict; + if (unlikely(!dict) || unlikely(tp_dict_version != __PYX_GET_DICT_VERSION(dict))) + return 0; + return obj_dict_version == __Pyx_get_object_dict_version(obj); +} +#endif + +/* GetModuleGlobalName */ +#if CYTHON_USE_DICT_VERSIONS +static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_version, PyObject **dict_cached_value) +#else +static CYTHON_INLINE PyObject *__Pyx__GetModuleGlobalName(PyObject *name) +#endif +{ + PyObject *result; +#if !CYTHON_AVOID_BORROWED_REFS +#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030500A1 + result = _PyDict_GetItem_KnownHash(__pyx_d, name, ((PyASCIIObject *) name)->hash); + __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version) + if (likely(result)) { + return __Pyx_NewRef(result); + } else if (unlikely(PyErr_Occurred())) { + return NULL; + } +#else + result = PyDict_GetItem(__pyx_d, name); + __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version) + if (likely(result)) { + return __Pyx_NewRef(result); + } +#endif +#else + result = PyObject_GetItem(__pyx_d, name); + __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version) + if (likely(result)) { + return __Pyx_NewRef(result); + } + PyErr_Clear(); +#endif + return __Pyx_GetBuiltinName(name); +} + +/* ReRaiseException */ +static CYTHON_INLINE void __Pyx_ReraiseException(void) { + PyObject *type = NULL, *value = NULL, *tb = NULL; +#if CYTHON_FAST_THREAD_STATE + PyThreadState *tstate = PyThreadState_GET(); + #if CYTHON_USE_EXC_INFO_STACK + _PyErr_StackItem *exc_info = __Pyx_PyErr_GetTopmostException(tstate); + type = exc_info->exc_type; + value = exc_info->exc_value; + tb = exc_info->exc_traceback; + #else + type = tstate->exc_type; + value = tstate->exc_value; + tb = tstate->exc_traceback; + #endif +#else + PyErr_GetExcInfo(&type, &value, &tb); +#endif + if (!type || type == Py_None) { +#if !CYTHON_FAST_THREAD_STATE + Py_XDECREF(type); + Py_XDECREF(value); + Py_XDECREF(tb); +#endif + PyErr_SetString(PyExc_RuntimeError, + "No active exception to reraise"); + } else { +#if CYTHON_FAST_THREAD_STATE + Py_INCREF(type); + Py_XINCREF(value); + Py_XINCREF(tb); +#endif + PyErr_Restore(type, value, tb); + } +} + +/* None */ +static CYTHON_INLINE Py_ssize_t __Pyx_div_Py_ssize_t(Py_ssize_t a, Py_ssize_t b) { + Py_ssize_t q = a / b; + Py_ssize_t r = a - q*b; + q -= ((r != 0) & ((r ^ b) < 0)); + return q; +} + +/* CIntToDigits */ +static const char DIGIT_PAIRS_10[2*10*10+1] = { + "00010203040506070809" + "10111213141516171819" + "20212223242526272829" + "30313233343536373839" + "40414243444546474849" + "50515253545556575859" + "60616263646566676869" + "70717273747576777879" + "80818283848586878889" + "90919293949596979899" +}; +static const char DIGIT_PAIRS_8[2*8*8+1] = { + "0001020304050607" + "1011121314151617" + "2021222324252627" + "3031323334353637" + "4041424344454647" + "5051525354555657" + "6061626364656667" + "7071727374757677" +}; +static const char DIGITS_HEX[2*16+1] = { + "0123456789abcdef" + "0123456789ABCDEF" +}; + +/* BuildPyUnicode */ +static PyObject* __Pyx_PyUnicode_BuildFromAscii(Py_ssize_t ulength, char* chars, int clength, + int prepend_sign, char padding_char) { + PyObject *uval; + Py_ssize_t uoffset = ulength - clength; +#if CYTHON_USE_UNICODE_INTERNALS + Py_ssize_t i; +#if CYTHON_PEP393_ENABLED + void *udata; + uval = PyUnicode_New(ulength, 127); + if (unlikely(!uval)) return NULL; + udata = PyUnicode_DATA(uval); +#else + Py_UNICODE *udata; + uval = PyUnicode_FromUnicode(NULL, ulength); + if (unlikely(!uval)) return NULL; + udata = PyUnicode_AS_UNICODE(uval); +#endif + if (uoffset > 0) { + i = 0; + if (prepend_sign) { + __Pyx_PyUnicode_WRITE(PyUnicode_1BYTE_KIND, udata, 0, '-'); + i++; + } + for (; i < uoffset; i++) { + __Pyx_PyUnicode_WRITE(PyUnicode_1BYTE_KIND, udata, i, padding_char); + } + } + for (i=0; i < clength; i++) { + __Pyx_PyUnicode_WRITE(PyUnicode_1BYTE_KIND, udata, uoffset+i, chars[i]); + } +#else + { + PyObject *sign = NULL, *padding = NULL; + uval = NULL; + if (uoffset > 0) { + prepend_sign = !!prepend_sign; + if (uoffset > prepend_sign) { + padding = PyUnicode_FromOrdinal(padding_char); + if (likely(padding) && uoffset > prepend_sign + 1) { + PyObject *tmp; + PyObject *repeat = PyInt_FromSize_t(uoffset - prepend_sign); + if (unlikely(!repeat)) goto done_or_error; + tmp = PyNumber_Multiply(padding, repeat); + Py_DECREF(repeat); + Py_DECREF(padding); + padding = tmp; + } + if (unlikely(!padding)) goto done_or_error; + } + if (prepend_sign) { + sign = PyUnicode_FromOrdinal('-'); + if (unlikely(!sign)) goto done_or_error; + } + } + uval = PyUnicode_DecodeASCII(chars, clength, NULL); + if (likely(uval) && padding) { + PyObject *tmp = PyNumber_Add(padding, uval); + Py_DECREF(uval); + uval = tmp; + } + if (likely(uval) && sign) { + PyObject *tmp = PyNumber_Add(sign, uval); + Py_DECREF(uval); + uval = tmp; + } +done_or_error: + Py_XDECREF(padding); + Py_XDECREF(sign); + } +#endif + return uval; +} + +/* CIntToPyUnicode */ +#ifdef _MSC_VER + #ifndef _MSC_STDINT_H_ + #if _MSC_VER < 1300 + typedef unsigned short uint16_t; + #else + typedef unsigned __int16 uint16_t; + #endif + #endif +#else + #include +#endif +#if defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) +#define GCC_DIAGNOSTIC +#endif +static CYTHON_INLINE PyObject* __Pyx_PyUnicode_From_int(int value, Py_ssize_t width, char padding_char, char format_char) { + char digits[sizeof(int)*3+2]; + char *dpos, *end = digits + sizeof(int)*3+2; + const char *hex_digits = DIGITS_HEX; + Py_ssize_t length, ulength; + int prepend_sign, last_one_off; + int remaining; +#ifdef GCC_DIAGNOSTIC +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wconversion" +#endif + const int neg_one = (int) -1, const_zero = (int) 0; +#ifdef GCC_DIAGNOSTIC +#pragma GCC diagnostic pop +#endif + const int is_unsigned = neg_one > const_zero; + if (format_char == 'X') { + hex_digits += 16; + format_char = 'x'; + } + remaining = value; + last_one_off = 0; + dpos = end; + do { + int digit_pos; + switch (format_char) { + case 'o': + digit_pos = abs((int)(remaining % (8*8))); + remaining = (int) (remaining / (8*8)); + dpos -= 2; + *(uint16_t*)dpos = ((const uint16_t*)DIGIT_PAIRS_8)[digit_pos]; + last_one_off = (digit_pos < 8); + break; + case 'd': + digit_pos = abs((int)(remaining % (10*10))); + remaining = (int) (remaining / (10*10)); + dpos -= 2; + *(uint16_t*)dpos = ((const uint16_t*)DIGIT_PAIRS_10)[digit_pos]; + last_one_off = (digit_pos < 10); + break; + case 'x': + *(--dpos) = hex_digits[abs((int)(remaining % 16))]; + remaining = (int) (remaining / 16); + break; + default: + assert(0); + break; + } + } while (unlikely(remaining != 0)); + if (last_one_off) { + assert(*dpos == '0'); + dpos++; + } + length = end - dpos; + ulength = length; + prepend_sign = 0; + if (!is_unsigned && value <= neg_one) { + if (padding_char == ' ' || width <= length + 1) { + *(--dpos) = '-'; + ++length; + } else { + prepend_sign = 1; + } + ++ulength; + } + if (width > ulength) { + ulength = width; + } + if (ulength == 1) { + return PyUnicode_FromOrdinal(*dpos); + } + return __Pyx_PyUnicode_BuildFromAscii(ulength, dpos, (int) length, prepend_sign, padding_char); +} + +/* PyObject_GenericGetAttrNoDict */ +#if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000 +static PyObject *__Pyx_RaiseGenericGetAttributeError(PyTypeObject *tp, PyObject *attr_name) { + PyErr_Format(PyExc_AttributeError, +#if PY_MAJOR_VERSION >= 3 + "'%.50s' object has no attribute '%U'", + tp->tp_name, attr_name); +#else + "'%.50s' object has no attribute '%.400s'", + tp->tp_name, PyString_AS_STRING(attr_name)); +#endif + return NULL; +} +static CYTHON_INLINE PyObject* __Pyx_PyObject_GenericGetAttrNoDict(PyObject* obj, PyObject* attr_name) { + PyObject *descr; + PyTypeObject *tp = Py_TYPE(obj); + if (unlikely(!PyString_Check(attr_name))) { + return PyObject_GenericGetAttr(obj, attr_name); + } + assert(!tp->tp_dictoffset); + descr = _PyType_Lookup(tp, attr_name); + if (unlikely(!descr)) { + return __Pyx_RaiseGenericGetAttributeError(tp, attr_name); + } + Py_INCREF(descr); + #if PY_MAJOR_VERSION < 3 + if (likely(PyType_HasFeature(Py_TYPE(descr), Py_TPFLAGS_HAVE_CLASS))) + #endif + { + descrgetfunc f = Py_TYPE(descr)->tp_descr_get; + if (unlikely(f)) { + PyObject *res = f(descr, obj, (PyObject *)tp); + Py_DECREF(descr); + return res; + } + } + return descr; +} +#endif + +/* PyObject_GenericGetAttr */ +#if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000 +static PyObject* __Pyx_PyObject_GenericGetAttr(PyObject* obj, PyObject* attr_name) { + if (unlikely(Py_TYPE(obj)->tp_dictoffset)) { + return PyObject_GenericGetAttr(obj, attr_name); + } + return __Pyx_PyObject_GenericGetAttrNoDict(obj, attr_name); +} +#endif + +/* SetVTable */ +static int __Pyx_SetVtable(PyObject *dict, void *vtable) { +#if PY_VERSION_HEX >= 0x02070000 + PyObject *ob = PyCapsule_New(vtable, 0, 0); +#else + PyObject *ob = PyCObject_FromVoidPtr(vtable, 0); +#endif + if (!ob) + goto bad; + if (PyDict_SetItem(dict, __pyx_n_s_pyx_vtable, ob) < 0) + goto bad; + Py_DECREF(ob); + return 0; +bad: + Py_XDECREF(ob); + return -1; +} + +/* SetupReduce */ +static int __Pyx_setup_reduce_is_named(PyObject* meth, PyObject* name) { + int ret; + PyObject *name_attr; + name_attr = __Pyx_PyObject_GetAttrStr(meth, __pyx_n_s_name); + if (likely(name_attr)) { + ret = PyObject_RichCompareBool(name_attr, name, Py_EQ); + } else { + ret = -1; + } + if (unlikely(ret < 0)) { + PyErr_Clear(); + ret = 0; + } + Py_XDECREF(name_attr); + return ret; +} +static int __Pyx_setup_reduce(PyObject* type_obj) { + int ret = 0; + PyObject *object_reduce = NULL; + PyObject *object_reduce_ex = NULL; + PyObject *reduce = NULL; + PyObject *reduce_ex = NULL; + PyObject *reduce_cython = NULL; + PyObject *setstate = NULL; + PyObject *setstate_cython = NULL; +#if CYTHON_USE_PYTYPE_LOOKUP + if (_PyType_Lookup((PyTypeObject*)type_obj, __pyx_n_s_getstate)) goto GOOD; +#else + if (PyObject_HasAttr(type_obj, __pyx_n_s_getstate)) goto GOOD; +#endif +#if CYTHON_USE_PYTYPE_LOOKUP + object_reduce_ex = _PyType_Lookup(&PyBaseObject_Type, __pyx_n_s_reduce_ex); if (!object_reduce_ex) goto BAD; +#else + object_reduce_ex = __Pyx_PyObject_GetAttrStr((PyObject*)&PyBaseObject_Type, __pyx_n_s_reduce_ex); if (!object_reduce_ex) goto BAD; +#endif + reduce_ex = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce_ex); if (unlikely(!reduce_ex)) goto BAD; + if (reduce_ex == object_reduce_ex) { +#if CYTHON_USE_PYTYPE_LOOKUP + object_reduce = _PyType_Lookup(&PyBaseObject_Type, __pyx_n_s_reduce); if (!object_reduce) goto BAD; +#else + object_reduce = __Pyx_PyObject_GetAttrStr((PyObject*)&PyBaseObject_Type, __pyx_n_s_reduce); if (!object_reduce) goto BAD; +#endif + reduce = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce); if (unlikely(!reduce)) goto BAD; + if (reduce == object_reduce || __Pyx_setup_reduce_is_named(reduce, __pyx_n_s_reduce_cython)) { + reduce_cython = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce_cython); if (unlikely(!reduce_cython)) goto BAD; + ret = PyDict_SetItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_reduce, reduce_cython); if (unlikely(ret < 0)) goto BAD; + ret = PyDict_DelItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_reduce_cython); if (unlikely(ret < 0)) goto BAD; + setstate = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_setstate); + if (!setstate) PyErr_Clear(); + if (!setstate || __Pyx_setup_reduce_is_named(setstate, __pyx_n_s_setstate_cython)) { + setstate_cython = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_setstate_cython); if (unlikely(!setstate_cython)) goto BAD; + ret = PyDict_SetItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_setstate, setstate_cython); if (unlikely(ret < 0)) goto BAD; + ret = PyDict_DelItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_setstate_cython); if (unlikely(ret < 0)) goto BAD; + } + PyType_Modified((PyTypeObject*)type_obj); + } + } + goto GOOD; +BAD: + if (!PyErr_Occurred()) + PyErr_Format(PyExc_RuntimeError, "Unable to initialize pickling for %s", ((PyTypeObject*)type_obj)->tp_name); + ret = -1; +GOOD: +#if !CYTHON_USE_PYTYPE_LOOKUP + Py_XDECREF(object_reduce); + Py_XDECREF(object_reduce_ex); +#endif + Py_XDECREF(reduce); + Py_XDECREF(reduce_ex); + Py_XDECREF(reduce_cython); + Py_XDECREF(setstate); + Py_XDECREF(setstate_cython); + return ret; +} + +/* TypeImport */ +#ifndef __PYX_HAVE_RT_ImportType +#define __PYX_HAVE_RT_ImportType +static PyTypeObject *__Pyx_ImportType(PyObject *module, const char *module_name, const char *class_name, + size_t size, enum __Pyx_ImportType_CheckSize check_size) +{ + PyObject *result = 0; + char warning[200]; + Py_ssize_t basicsize; +#ifdef Py_LIMITED_API + PyObject *py_basicsize; +#endif + result = PyObject_GetAttrString(module, class_name); + if (!result) + goto bad; + if (!PyType_Check(result)) { + PyErr_Format(PyExc_TypeError, + "%.200s.%.200s is not a type object", + module_name, class_name); + goto bad; + } +#ifndef Py_LIMITED_API + basicsize = ((PyTypeObject *)result)->tp_basicsize; +#else + py_basicsize = PyObject_GetAttrString(result, "__basicsize__"); + if (!py_basicsize) + goto bad; + basicsize = PyLong_AsSsize_t(py_basicsize); + Py_DECREF(py_basicsize); + py_basicsize = 0; + if (basicsize == (Py_ssize_t)-1 && PyErr_Occurred()) + goto bad; +#endif + if ((size_t)basicsize < size) { + PyErr_Format(PyExc_ValueError, + "%.200s.%.200s size changed, may indicate binary incompatibility. " + "Expected %zd from C header, got %zd from PyObject", + module_name, class_name, size, basicsize); + goto bad; + } + if (check_size == __Pyx_ImportType_CheckSize_Error && (size_t)basicsize != size) { + PyErr_Format(PyExc_ValueError, + "%.200s.%.200s size changed, may indicate binary incompatibility. " + "Expected %zd from C header, got %zd from PyObject", + module_name, class_name, size, basicsize); + goto bad; + } + else if (check_size == __Pyx_ImportType_CheckSize_Warn && (size_t)basicsize > size) { + PyOS_snprintf(warning, sizeof(warning), + "%s.%s size changed, may indicate binary incompatibility. " + "Expected %zd from C header, got %zd from PyObject", + module_name, class_name, size, basicsize); + if (PyErr_WarnEx(NULL, warning, 0) < 0) goto bad; + } + return (PyTypeObject *)result; +bad: + Py_XDECREF(result); + return NULL; +} +#endif + +/* Import */ +static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, int level) { + PyObject *empty_list = 0; + PyObject *module = 0; + PyObject *global_dict = 0; + PyObject *empty_dict = 0; + PyObject *list; + #if PY_MAJOR_VERSION < 3 + PyObject *py_import; + py_import = __Pyx_PyObject_GetAttrStr(__pyx_b, __pyx_n_s_import); + if (!py_import) + goto bad; + #endif + if (from_list) + list = from_list; + else { + empty_list = PyList_New(0); + if (!empty_list) + goto bad; + list = empty_list; + } + global_dict = PyModule_GetDict(__pyx_m); + if (!global_dict) + goto bad; + empty_dict = PyDict_New(); + if (!empty_dict) + goto bad; + { + #if PY_MAJOR_VERSION >= 3 + if (level == -1) { + if (strchr(__Pyx_MODULE_NAME, '.')) { + module = PyImport_ImportModuleLevelObject( + name, global_dict, empty_dict, list, 1); + if (!module) { + if (!PyErr_ExceptionMatches(PyExc_ImportError)) + goto bad; + PyErr_Clear(); + } + } + level = 0; + } + #endif + if (!module) { + #if PY_MAJOR_VERSION < 3 + PyObject *py_level = PyInt_FromLong(level); + if (!py_level) + goto bad; + module = PyObject_CallFunctionObjArgs(py_import, + name, global_dict, empty_dict, list, py_level, (PyObject *)NULL); + Py_DECREF(py_level); + #else + module = PyImport_ImportModuleLevelObject( + name, global_dict, empty_dict, list, level); + #endif + } + } +bad: + #if PY_MAJOR_VERSION < 3 + Py_XDECREF(py_import); + #endif + Py_XDECREF(empty_list); + Py_XDECREF(empty_dict); + return module; +} + +/* ImportFrom */ +static PyObject* __Pyx_ImportFrom(PyObject* module, PyObject* name) { + PyObject* value = __Pyx_PyObject_GetAttrStr(module, name); + if (unlikely(!value) && PyErr_ExceptionMatches(PyExc_AttributeError)) { + PyErr_Format(PyExc_ImportError, + #if PY_MAJOR_VERSION < 3 + "cannot import name %.230s", PyString_AS_STRING(name)); + #else + "cannot import name %S", name); + #endif + } + return value; +} + +/* CLineInTraceback */ +#ifndef CYTHON_CLINE_IN_TRACEBACK +static int __Pyx_CLineForTraceback(PyThreadState *tstate, int c_line) { + PyObject *use_cline; + PyObject *ptype, *pvalue, *ptraceback; +#if CYTHON_COMPILING_IN_CPYTHON + PyObject **cython_runtime_dict; +#endif + if (unlikely(!__pyx_cython_runtime)) { + return c_line; + } + __Pyx_ErrFetchInState(tstate, &ptype, &pvalue, &ptraceback); +#if CYTHON_COMPILING_IN_CPYTHON + cython_runtime_dict = _PyObject_GetDictPtr(__pyx_cython_runtime); + if (likely(cython_runtime_dict)) { + __PYX_PY_DICT_LOOKUP_IF_MODIFIED( + use_cline, *cython_runtime_dict, + __Pyx_PyDict_GetItemStr(*cython_runtime_dict, __pyx_n_s_cline_in_traceback)) + } else +#endif + { + PyObject *use_cline_obj = __Pyx_PyObject_GetAttrStr(__pyx_cython_runtime, __pyx_n_s_cline_in_traceback); + if (use_cline_obj) { + use_cline = PyObject_Not(use_cline_obj) ? Py_False : Py_True; + Py_DECREF(use_cline_obj); + } else { + PyErr_Clear(); + use_cline = NULL; + } + } + if (!use_cline) { + c_line = 0; + PyObject_SetAttr(__pyx_cython_runtime, __pyx_n_s_cline_in_traceback, Py_False); + } + else if (use_cline == Py_False || (use_cline != Py_True && PyObject_Not(use_cline) != 0)) { + c_line = 0; + } + __Pyx_ErrRestoreInState(tstate, ptype, pvalue, ptraceback); + return c_line; +} +#endif + +/* CodeObjectCache */ +static int __pyx_bisect_code_objects(__Pyx_CodeObjectCacheEntry* entries, int count, int code_line) { + int start = 0, mid = 0, end = count - 1; + if (end >= 0 && code_line > entries[end].code_line) { + return count; + } + while (start < end) { + mid = start + (end - start) / 2; + if (code_line < entries[mid].code_line) { + end = mid; + } else if (code_line > entries[mid].code_line) { + start = mid + 1; + } else { + return mid; + } + } + if (code_line <= entries[mid].code_line) { + return mid; + } else { + return mid + 1; + } +} +static PyCodeObject *__pyx_find_code_object(int code_line) { + PyCodeObject* code_object; + int pos; + if (unlikely(!code_line) || unlikely(!__pyx_code_cache.entries)) { + return NULL; + } + pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line); + if (unlikely(pos >= __pyx_code_cache.count) || unlikely(__pyx_code_cache.entries[pos].code_line != code_line)) { + return NULL; + } + code_object = __pyx_code_cache.entries[pos].code_object; + Py_INCREF(code_object); + return code_object; +} +static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object) { + int pos, i; + __Pyx_CodeObjectCacheEntry* entries = __pyx_code_cache.entries; + if (unlikely(!code_line)) { + return; + } + if (unlikely(!entries)) { + entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Malloc(64*sizeof(__Pyx_CodeObjectCacheEntry)); + if (likely(entries)) { + __pyx_code_cache.entries = entries; + __pyx_code_cache.max_count = 64; + __pyx_code_cache.count = 1; + entries[0].code_line = code_line; + entries[0].code_object = code_object; + Py_INCREF(code_object); + } + return; + } + pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line); + if ((pos < __pyx_code_cache.count) && unlikely(__pyx_code_cache.entries[pos].code_line == code_line)) { + PyCodeObject* tmp = entries[pos].code_object; + entries[pos].code_object = code_object; + Py_DECREF(tmp); + return; + } + if (__pyx_code_cache.count == __pyx_code_cache.max_count) { + int new_max = __pyx_code_cache.max_count + 64; + entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Realloc( + __pyx_code_cache.entries, (size_t)new_max*sizeof(__Pyx_CodeObjectCacheEntry)); + if (unlikely(!entries)) { + return; + } + __pyx_code_cache.entries = entries; + __pyx_code_cache.max_count = new_max; + } + for (i=__pyx_code_cache.count; i>pos; i--) { + entries[i] = entries[i-1]; + } + entries[pos].code_line = code_line; + entries[pos].code_object = code_object; + __pyx_code_cache.count++; + Py_INCREF(code_object); +} + +/* AddTraceback */ +#include "compile.h" +#include "frameobject.h" +#include "traceback.h" +static PyCodeObject* __Pyx_CreateCodeObjectForTraceback( + const char *funcname, int c_line, + int py_line, const char *filename) { + PyCodeObject *py_code = 0; + PyObject *py_srcfile = 0; + PyObject *py_funcname = 0; + #if PY_MAJOR_VERSION < 3 + py_srcfile = PyString_FromString(filename); + #else + py_srcfile = PyUnicode_FromString(filename); + #endif + if (!py_srcfile) goto bad; + if (c_line) { + #if PY_MAJOR_VERSION < 3 + py_funcname = PyString_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line); + #else + py_funcname = PyUnicode_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line); + #endif + } + else { + #if PY_MAJOR_VERSION < 3 + py_funcname = PyString_FromString(funcname); + #else + py_funcname = PyUnicode_FromString(funcname); + #endif + } + if (!py_funcname) goto bad; + py_code = __Pyx_PyCode_New( + 0, + 0, + 0, + 0, + 0, + __pyx_empty_bytes, /*PyObject *code,*/ + __pyx_empty_tuple, /*PyObject *consts,*/ + __pyx_empty_tuple, /*PyObject *names,*/ + __pyx_empty_tuple, /*PyObject *varnames,*/ + __pyx_empty_tuple, /*PyObject *freevars,*/ + __pyx_empty_tuple, /*PyObject *cellvars,*/ + py_srcfile, /*PyObject *filename,*/ + py_funcname, /*PyObject *name,*/ + py_line, + __pyx_empty_bytes /*PyObject *lnotab*/ + ); + Py_DECREF(py_srcfile); + Py_DECREF(py_funcname); + return py_code; +bad: + Py_XDECREF(py_srcfile); + Py_XDECREF(py_funcname); + return NULL; +} +static void __Pyx_AddTraceback(const char *funcname, int c_line, + int py_line, const char *filename) { + PyCodeObject *py_code = 0; + PyFrameObject *py_frame = 0; + PyThreadState *tstate = __Pyx_PyThreadState_Current; + if (c_line) { + c_line = __Pyx_CLineForTraceback(tstate, c_line); + } + py_code = __pyx_find_code_object(c_line ? -c_line : py_line); + if (!py_code) { + py_code = __Pyx_CreateCodeObjectForTraceback( + funcname, c_line, py_line, filename); + if (!py_code) goto bad; + __pyx_insert_code_object(c_line ? -c_line : py_line, py_code); + } + py_frame = PyFrame_New( + tstate, /*PyThreadState *tstate,*/ + py_code, /*PyCodeObject *code,*/ + __pyx_d, /*PyObject *globals,*/ + 0 /*PyObject *locals*/ + ); + if (!py_frame) goto bad; + __Pyx_PyFrame_SetLineNumber(py_frame, py_line); + PyTraceBack_Here(py_frame); +bad: + Py_XDECREF(py_code); + Py_XDECREF(py_frame); +} + +/* CIntFromPyVerify */ +#define __PYX_VERIFY_RETURN_INT(target_type, func_type, func_value)\ + __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, 0) +#define __PYX_VERIFY_RETURN_INT_EXC(target_type, func_type, func_value)\ + __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, 1) +#define __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, exc)\ + {\ + func_type value = func_value;\ + if (sizeof(target_type) < sizeof(func_type)) {\ + if (unlikely(value != (func_type) (target_type) value)) {\ + func_type zero = 0;\ + if (exc && unlikely(value == (func_type)-1 && PyErr_Occurred()))\ + return (target_type) -1;\ + if (is_unsigned && unlikely(value < zero))\ + goto raise_neg_overflow;\ + else\ + goto raise_overflow;\ + }\ + }\ + return (target_type) value;\ + } + +/* CIntToPy */ +static CYTHON_INLINE PyObject* __Pyx_PyInt_From_unsigned_PY_LONG_LONG(unsigned PY_LONG_LONG value) { + const unsigned PY_LONG_LONG neg_one = (unsigned PY_LONG_LONG) ((unsigned PY_LONG_LONG) 0 - (unsigned PY_LONG_LONG) 1), const_zero = (unsigned PY_LONG_LONG) 0; + const int is_unsigned = neg_one > const_zero; + if (is_unsigned) { + if (sizeof(unsigned PY_LONG_LONG) < sizeof(long)) { + return PyInt_FromLong((long) value); + } else if (sizeof(unsigned PY_LONG_LONG) <= sizeof(unsigned long)) { + return PyLong_FromUnsignedLong((unsigned long) value); +#ifdef HAVE_LONG_LONG + } else if (sizeof(unsigned PY_LONG_LONG) <= sizeof(unsigned PY_LONG_LONG)) { + return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value); +#endif + } + } else { + if (sizeof(unsigned PY_LONG_LONG) <= sizeof(long)) { + return PyInt_FromLong((long) value); +#ifdef HAVE_LONG_LONG + } else if (sizeof(unsigned PY_LONG_LONG) <= sizeof(PY_LONG_LONG)) { + return PyLong_FromLongLong((PY_LONG_LONG) value); +#endif + } + } + { + int one = 1; int little = (int)*(unsigned char *)&one; + unsigned char *bytes = (unsigned char *)&value; + return _PyLong_FromByteArray(bytes, sizeof(unsigned PY_LONG_LONG), + little, !is_unsigned); + } +} + +/* CIntFromPy */ +static CYTHON_INLINE PY_LONG_LONG __Pyx_PyInt_As_PY_LONG_LONG(PyObject *x) { + const PY_LONG_LONG neg_one = (PY_LONG_LONG) ((PY_LONG_LONG) 0 - (PY_LONG_LONG) 1), const_zero = (PY_LONG_LONG) 0; + const int is_unsigned = neg_one > const_zero; +#if PY_MAJOR_VERSION < 3 + if (likely(PyInt_Check(x))) { + if (sizeof(PY_LONG_LONG) < sizeof(long)) { + __PYX_VERIFY_RETURN_INT(PY_LONG_LONG, long, PyInt_AS_LONG(x)) + } else { + long val = PyInt_AS_LONG(x); + if (is_unsigned && unlikely(val < 0)) { + goto raise_neg_overflow; + } + return (PY_LONG_LONG) val; + } + } else +#endif + if (likely(PyLong_Check(x))) { + if (is_unsigned) { +#if CYTHON_USE_PYLONG_INTERNALS + const digit* digits = ((PyLongObject*)x)->ob_digit; + switch (Py_SIZE(x)) { + case 0: return (PY_LONG_LONG) 0; + case 1: __PYX_VERIFY_RETURN_INT(PY_LONG_LONG, digit, digits[0]) + case 2: + if (8 * sizeof(PY_LONG_LONG) > 1 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(PY_LONG_LONG, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(PY_LONG_LONG) >= 2 * PyLong_SHIFT) { + return (PY_LONG_LONG) (((((PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[0])); + } + } + break; + case 3: + if (8 * sizeof(PY_LONG_LONG) > 2 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(PY_LONG_LONG, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(PY_LONG_LONG) >= 3 * PyLong_SHIFT) { + return (PY_LONG_LONG) (((((((PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[0])); + } + } + break; + case 4: + if (8 * sizeof(PY_LONG_LONG) > 3 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(PY_LONG_LONG, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(PY_LONG_LONG) >= 4 * PyLong_SHIFT) { + return (PY_LONG_LONG) (((((((((PY_LONG_LONG)digits[3]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[0])); + } + } + break; + } +#endif +#if CYTHON_COMPILING_IN_CPYTHON + if (unlikely(Py_SIZE(x) < 0)) { + goto raise_neg_overflow; + } +#else + { + int result = PyObject_RichCompareBool(x, Py_False, Py_LT); + if (unlikely(result < 0)) + return (PY_LONG_LONG) -1; + if (unlikely(result == 1)) + goto raise_neg_overflow; + } +#endif + if (sizeof(PY_LONG_LONG) <= sizeof(unsigned long)) { + __PYX_VERIFY_RETURN_INT_EXC(PY_LONG_LONG, unsigned long, PyLong_AsUnsignedLong(x)) +#ifdef HAVE_LONG_LONG + } else if (sizeof(PY_LONG_LONG) <= sizeof(unsigned PY_LONG_LONG)) { + __PYX_VERIFY_RETURN_INT_EXC(PY_LONG_LONG, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x)) +#endif + } + } else { +#if CYTHON_USE_PYLONG_INTERNALS + const digit* digits = ((PyLongObject*)x)->ob_digit; + switch (Py_SIZE(x)) { + case 0: return (PY_LONG_LONG) 0; + case -1: __PYX_VERIFY_RETURN_INT(PY_LONG_LONG, sdigit, (sdigit) (-(sdigit)digits[0])) + case 1: __PYX_VERIFY_RETURN_INT(PY_LONG_LONG, digit, +digits[0]) + case -2: + if (8 * sizeof(PY_LONG_LONG) - 1 > 1 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(PY_LONG_LONG, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(PY_LONG_LONG) - 1 > 2 * PyLong_SHIFT) { + return (PY_LONG_LONG) (((PY_LONG_LONG)-1)*(((((PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[0]))); + } + } + break; + case 2: + if (8 * sizeof(PY_LONG_LONG) > 1 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(PY_LONG_LONG, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(PY_LONG_LONG) - 1 > 2 * PyLong_SHIFT) { + return (PY_LONG_LONG) ((((((PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[0]))); + } + } + break; + case -3: + if (8 * sizeof(PY_LONG_LONG) - 1 > 2 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(PY_LONG_LONG, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(PY_LONG_LONG) - 1 > 3 * PyLong_SHIFT) { + return (PY_LONG_LONG) (((PY_LONG_LONG)-1)*(((((((PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[0]))); + } + } + break; + case 3: + if (8 * sizeof(PY_LONG_LONG) > 2 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(PY_LONG_LONG, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(PY_LONG_LONG) - 1 > 3 * PyLong_SHIFT) { + return (PY_LONG_LONG) ((((((((PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[0]))); + } + } + break; + case -4: + if (8 * sizeof(PY_LONG_LONG) - 1 > 3 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(PY_LONG_LONG, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(PY_LONG_LONG) - 1 > 4 * PyLong_SHIFT) { + return (PY_LONG_LONG) (((PY_LONG_LONG)-1)*(((((((((PY_LONG_LONG)digits[3]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[0]))); + } + } + break; + case 4: + if (8 * sizeof(PY_LONG_LONG) > 3 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(PY_LONG_LONG, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(PY_LONG_LONG) - 1 > 4 * PyLong_SHIFT) { + return (PY_LONG_LONG) ((((((((((PY_LONG_LONG)digits[3]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[0]))); + } + } + break; + } +#endif + if (sizeof(PY_LONG_LONG) <= sizeof(long)) { + __PYX_VERIFY_RETURN_INT_EXC(PY_LONG_LONG, long, PyLong_AsLong(x)) +#ifdef HAVE_LONG_LONG + } else if (sizeof(PY_LONG_LONG) <= sizeof(PY_LONG_LONG)) { + __PYX_VERIFY_RETURN_INT_EXC(PY_LONG_LONG, PY_LONG_LONG, PyLong_AsLongLong(x)) +#endif + } + } + { +#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray) + PyErr_SetString(PyExc_RuntimeError, + "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers"); +#else + PY_LONG_LONG val; + PyObject *v = __Pyx_PyNumber_IntOrLong(x); + #if PY_MAJOR_VERSION < 3 + if (likely(v) && !PyLong_Check(v)) { + PyObject *tmp = v; + v = PyNumber_Long(tmp); + Py_DECREF(tmp); + } + #endif + if (likely(v)) { + int one = 1; int is_little = (int)*(unsigned char *)&one; + unsigned char *bytes = (unsigned char *)&val; + int ret = _PyLong_AsByteArray((PyLongObject *)v, + bytes, sizeof(val), + is_little, !is_unsigned); + Py_DECREF(v); + if (likely(!ret)) + return val; + } +#endif + return (PY_LONG_LONG) -1; + } + } else { + PY_LONG_LONG val; + PyObject *tmp = __Pyx_PyNumber_IntOrLong(x); + if (!tmp) return (PY_LONG_LONG) -1; + val = __Pyx_PyInt_As_PY_LONG_LONG(tmp); + Py_DECREF(tmp); + return val; + } +raise_overflow: + PyErr_SetString(PyExc_OverflowError, + "value too large to convert to PY_LONG_LONG"); + return (PY_LONG_LONG) -1; +raise_neg_overflow: + PyErr_SetString(PyExc_OverflowError, + "can't convert negative value to PY_LONG_LONG"); + return (PY_LONG_LONG) -1; +} + +/* CIntFromPy */ +static CYTHON_INLINE unsigned PY_LONG_LONG __Pyx_PyInt_As_unsigned_PY_LONG_LONG(PyObject *x) { + const unsigned PY_LONG_LONG neg_one = (unsigned PY_LONG_LONG) ((unsigned PY_LONG_LONG) 0 - (unsigned PY_LONG_LONG) 1), const_zero = (unsigned PY_LONG_LONG) 0; + const int is_unsigned = neg_one > const_zero; +#if PY_MAJOR_VERSION < 3 + if (likely(PyInt_Check(x))) { + if (sizeof(unsigned PY_LONG_LONG) < sizeof(long)) { + __PYX_VERIFY_RETURN_INT(unsigned PY_LONG_LONG, long, PyInt_AS_LONG(x)) + } else { + long val = PyInt_AS_LONG(x); + if (is_unsigned && unlikely(val < 0)) { + goto raise_neg_overflow; + } + return (unsigned PY_LONG_LONG) val; + } + } else +#endif + if (likely(PyLong_Check(x))) { + if (is_unsigned) { +#if CYTHON_USE_PYLONG_INTERNALS + const digit* digits = ((PyLongObject*)x)->ob_digit; + switch (Py_SIZE(x)) { + case 0: return (unsigned PY_LONG_LONG) 0; + case 1: __PYX_VERIFY_RETURN_INT(unsigned PY_LONG_LONG, digit, digits[0]) + case 2: + if (8 * sizeof(unsigned PY_LONG_LONG) > 1 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(unsigned PY_LONG_LONG, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(unsigned PY_LONG_LONG) >= 2 * PyLong_SHIFT) { + return (unsigned PY_LONG_LONG) (((((unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0])); + } + } + break; + case 3: + if (8 * sizeof(unsigned PY_LONG_LONG) > 2 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(unsigned PY_LONG_LONG, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(unsigned PY_LONG_LONG) >= 3 * PyLong_SHIFT) { + return (unsigned PY_LONG_LONG) (((((((unsigned PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0])); + } + } + break; + case 4: + if (8 * sizeof(unsigned PY_LONG_LONG) > 3 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(unsigned PY_LONG_LONG, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(unsigned PY_LONG_LONG) >= 4 * PyLong_SHIFT) { + return (unsigned PY_LONG_LONG) (((((((((unsigned PY_LONG_LONG)digits[3]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0])); + } + } + break; + } +#endif +#if CYTHON_COMPILING_IN_CPYTHON + if (unlikely(Py_SIZE(x) < 0)) { + goto raise_neg_overflow; + } +#else + { + int result = PyObject_RichCompareBool(x, Py_False, Py_LT); + if (unlikely(result < 0)) + return (unsigned PY_LONG_LONG) -1; + if (unlikely(result == 1)) + goto raise_neg_overflow; + } +#endif + if (sizeof(unsigned PY_LONG_LONG) <= sizeof(unsigned long)) { + __PYX_VERIFY_RETURN_INT_EXC(unsigned PY_LONG_LONG, unsigned long, PyLong_AsUnsignedLong(x)) +#ifdef HAVE_LONG_LONG + } else if (sizeof(unsigned PY_LONG_LONG) <= sizeof(unsigned PY_LONG_LONG)) { + __PYX_VERIFY_RETURN_INT_EXC(unsigned PY_LONG_LONG, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x)) +#endif + } + } else { +#if CYTHON_USE_PYLONG_INTERNALS + const digit* digits = ((PyLongObject*)x)->ob_digit; + switch (Py_SIZE(x)) { + case 0: return (unsigned PY_LONG_LONG) 0; + case -1: __PYX_VERIFY_RETURN_INT(unsigned PY_LONG_LONG, sdigit, (sdigit) (-(sdigit)digits[0])) + case 1: __PYX_VERIFY_RETURN_INT(unsigned PY_LONG_LONG, digit, +digits[0]) + case -2: + if (8 * sizeof(unsigned PY_LONG_LONG) - 1 > 1 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(unsigned PY_LONG_LONG, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(unsigned PY_LONG_LONG) - 1 > 2 * PyLong_SHIFT) { + return (unsigned PY_LONG_LONG) (((unsigned PY_LONG_LONG)-1)*(((((unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0]))); + } + } + break; + case 2: + if (8 * sizeof(unsigned PY_LONG_LONG) > 1 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(unsigned PY_LONG_LONG, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(unsigned PY_LONG_LONG) - 1 > 2 * PyLong_SHIFT) { + return (unsigned PY_LONG_LONG) ((((((unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0]))); + } + } + break; + case -3: + if (8 * sizeof(unsigned PY_LONG_LONG) - 1 > 2 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(unsigned PY_LONG_LONG, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(unsigned PY_LONG_LONG) - 1 > 3 * PyLong_SHIFT) { + return (unsigned PY_LONG_LONG) (((unsigned PY_LONG_LONG)-1)*(((((((unsigned PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0]))); + } + } + break; + case 3: + if (8 * sizeof(unsigned PY_LONG_LONG) > 2 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(unsigned PY_LONG_LONG, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(unsigned PY_LONG_LONG) - 1 > 3 * PyLong_SHIFT) { + return (unsigned PY_LONG_LONG) ((((((((unsigned PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0]))); + } + } + break; + case -4: + if (8 * sizeof(unsigned PY_LONG_LONG) - 1 > 3 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(unsigned PY_LONG_LONG, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(unsigned PY_LONG_LONG) - 1 > 4 * PyLong_SHIFT) { + return (unsigned PY_LONG_LONG) (((unsigned PY_LONG_LONG)-1)*(((((((((unsigned PY_LONG_LONG)digits[3]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0]))); + } + } + break; + case 4: + if (8 * sizeof(unsigned PY_LONG_LONG) > 3 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(unsigned PY_LONG_LONG, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(unsigned PY_LONG_LONG) - 1 > 4 * PyLong_SHIFT) { + return (unsigned PY_LONG_LONG) ((((((((((unsigned PY_LONG_LONG)digits[3]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0]))); + } + } + break; + } +#endif + if (sizeof(unsigned PY_LONG_LONG) <= sizeof(long)) { + __PYX_VERIFY_RETURN_INT_EXC(unsigned PY_LONG_LONG, long, PyLong_AsLong(x)) +#ifdef HAVE_LONG_LONG + } else if (sizeof(unsigned PY_LONG_LONG) <= sizeof(PY_LONG_LONG)) { + __PYX_VERIFY_RETURN_INT_EXC(unsigned PY_LONG_LONG, PY_LONG_LONG, PyLong_AsLongLong(x)) +#endif + } + } + { +#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray) + PyErr_SetString(PyExc_RuntimeError, + "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers"); +#else + unsigned PY_LONG_LONG val; + PyObject *v = __Pyx_PyNumber_IntOrLong(x); + #if PY_MAJOR_VERSION < 3 + if (likely(v) && !PyLong_Check(v)) { + PyObject *tmp = v; + v = PyNumber_Long(tmp); + Py_DECREF(tmp); + } + #endif + if (likely(v)) { + int one = 1; int is_little = (int)*(unsigned char *)&one; + unsigned char *bytes = (unsigned char *)&val; + int ret = _PyLong_AsByteArray((PyLongObject *)v, + bytes, sizeof(val), + is_little, !is_unsigned); + Py_DECREF(v); + if (likely(!ret)) + return val; + } +#endif + return (unsigned PY_LONG_LONG) -1; + } + } else { + unsigned PY_LONG_LONG val; + PyObject *tmp = __Pyx_PyNumber_IntOrLong(x); + if (!tmp) return (unsigned PY_LONG_LONG) -1; + val = __Pyx_PyInt_As_unsigned_PY_LONG_LONG(tmp); + Py_DECREF(tmp); + return val; + } +raise_overflow: + PyErr_SetString(PyExc_OverflowError, + "value too large to convert to unsigned PY_LONG_LONG"); + return (unsigned PY_LONG_LONG) -1; +raise_neg_overflow: + PyErr_SetString(PyExc_OverflowError, + "can't convert negative value to unsigned PY_LONG_LONG"); + return (unsigned PY_LONG_LONG) -1; +} + +/* CIntFromPy */ +static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *x) { + const long neg_one = (long) ((long) 0 - (long) 1), const_zero = (long) 0; + const int is_unsigned = neg_one > const_zero; +#if PY_MAJOR_VERSION < 3 + if (likely(PyInt_Check(x))) { + if (sizeof(long) < sizeof(long)) { + __PYX_VERIFY_RETURN_INT(long, long, PyInt_AS_LONG(x)) + } else { + long val = PyInt_AS_LONG(x); + if (is_unsigned && unlikely(val < 0)) { + goto raise_neg_overflow; + } + return (long) val; + } + } else +#endif + if (likely(PyLong_Check(x))) { + if (is_unsigned) { +#if CYTHON_USE_PYLONG_INTERNALS + const digit* digits = ((PyLongObject*)x)->ob_digit; + switch (Py_SIZE(x)) { + case 0: return (long) 0; + case 1: __PYX_VERIFY_RETURN_INT(long, digit, digits[0]) + case 2: + if (8 * sizeof(long) > 1 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(long) >= 2 * PyLong_SHIFT) { + return (long) (((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0])); + } + } + break; + case 3: + if (8 * sizeof(long) > 2 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(long) >= 3 * PyLong_SHIFT) { + return (long) (((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])); + } + } + break; + case 4: + if (8 * sizeof(long) > 3 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(long) >= 4 * PyLong_SHIFT) { + return (long) (((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])); + } + } + break; + } +#endif +#if CYTHON_COMPILING_IN_CPYTHON + if (unlikely(Py_SIZE(x) < 0)) { + goto raise_neg_overflow; + } +#else + { + int result = PyObject_RichCompareBool(x, Py_False, Py_LT); + if (unlikely(result < 0)) + return (long) -1; + if (unlikely(result == 1)) + goto raise_neg_overflow; + } +#endif + if (sizeof(long) <= sizeof(unsigned long)) { + __PYX_VERIFY_RETURN_INT_EXC(long, unsigned long, PyLong_AsUnsignedLong(x)) +#ifdef HAVE_LONG_LONG + } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) { + __PYX_VERIFY_RETURN_INT_EXC(long, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x)) +#endif + } + } else { +#if CYTHON_USE_PYLONG_INTERNALS + const digit* digits = ((PyLongObject*)x)->ob_digit; + switch (Py_SIZE(x)) { + case 0: return (long) 0; + case -1: __PYX_VERIFY_RETURN_INT(long, sdigit, (sdigit) (-(sdigit)digits[0])) + case 1: __PYX_VERIFY_RETURN_INT(long, digit, +digits[0]) + case -2: + if (8 * sizeof(long) - 1 > 1 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) { + return (long) (((long)-1)*(((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0]))); + } + } + break; + case 2: + if (8 * sizeof(long) > 1 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) { + return (long) ((((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0]))); + } + } + break; + case -3: + if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) { + return (long) (((long)-1)*(((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0]))); + } + } + break; + case 3: + if (8 * sizeof(long) > 2 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) { + return (long) ((((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0]))); + } + } + break; + case -4: + if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(long) - 1 > 4 * PyLong_SHIFT) { + return (long) (((long)-1)*(((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0]))); + } + } + break; + case 4: + if (8 * sizeof(long) > 3 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(long) - 1 > 4 * PyLong_SHIFT) { + return (long) ((((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0]))); + } + } + break; + } +#endif + if (sizeof(long) <= sizeof(long)) { + __PYX_VERIFY_RETURN_INT_EXC(long, long, PyLong_AsLong(x)) +#ifdef HAVE_LONG_LONG + } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) { + __PYX_VERIFY_RETURN_INT_EXC(long, PY_LONG_LONG, PyLong_AsLongLong(x)) +#endif + } + } + { +#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray) + PyErr_SetString(PyExc_RuntimeError, + "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers"); +#else + long val; + PyObject *v = __Pyx_PyNumber_IntOrLong(x); + #if PY_MAJOR_VERSION < 3 + if (likely(v) && !PyLong_Check(v)) { + PyObject *tmp = v; + v = PyNumber_Long(tmp); + Py_DECREF(tmp); + } + #endif + if (likely(v)) { + int one = 1; int is_little = (int)*(unsigned char *)&one; + unsigned char *bytes = (unsigned char *)&val; + int ret = _PyLong_AsByteArray((PyLongObject *)v, + bytes, sizeof(val), + is_little, !is_unsigned); + Py_DECREF(v); + if (likely(!ret)) + return val; + } +#endif + return (long) -1; + } + } else { + long val; + PyObject *tmp = __Pyx_PyNumber_IntOrLong(x); + if (!tmp) return (long) -1; + val = __Pyx_PyInt_As_long(tmp); + Py_DECREF(tmp); + return val; + } +raise_overflow: + PyErr_SetString(PyExc_OverflowError, + "value too large to convert to long"); + return (long) -1; +raise_neg_overflow: + PyErr_SetString(PyExc_OverflowError, + "can't convert negative value to long"); + return (long) -1; +} + +/* CIntFromPy */ +static CYTHON_INLINE char __Pyx_PyInt_As_char(PyObject *x) { + const char neg_one = (char) ((char) 0 - (char) 1), const_zero = (char) 0; + const int is_unsigned = neg_one > const_zero; +#if PY_MAJOR_VERSION < 3 + if (likely(PyInt_Check(x))) { + if (sizeof(char) < sizeof(long)) { + __PYX_VERIFY_RETURN_INT(char, long, PyInt_AS_LONG(x)) + } else { + long val = PyInt_AS_LONG(x); + if (is_unsigned && unlikely(val < 0)) { + goto raise_neg_overflow; + } + return (char) val; + } + } else +#endif + if (likely(PyLong_Check(x))) { + if (is_unsigned) { +#if CYTHON_USE_PYLONG_INTERNALS + const digit* digits = ((PyLongObject*)x)->ob_digit; + switch (Py_SIZE(x)) { + case 0: return (char) 0; + case 1: __PYX_VERIFY_RETURN_INT(char, digit, digits[0]) + case 2: + if (8 * sizeof(char) > 1 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(char) >= 2 * PyLong_SHIFT) { + return (char) (((((char)digits[1]) << PyLong_SHIFT) | (char)digits[0])); + } + } + break; + case 3: + if (8 * sizeof(char) > 2 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(char) >= 3 * PyLong_SHIFT) { + return (char) (((((((char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0])); + } + } + break; + case 4: + if (8 * sizeof(char) > 3 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(char) >= 4 * PyLong_SHIFT) { + return (char) (((((((((char)digits[3]) << PyLong_SHIFT) | (char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0])); + } + } + break; + } +#endif +#if CYTHON_COMPILING_IN_CPYTHON + if (unlikely(Py_SIZE(x) < 0)) { + goto raise_neg_overflow; + } +#else + { + int result = PyObject_RichCompareBool(x, Py_False, Py_LT); + if (unlikely(result < 0)) + return (char) -1; + if (unlikely(result == 1)) + goto raise_neg_overflow; + } +#endif + if (sizeof(char) <= sizeof(unsigned long)) { + __PYX_VERIFY_RETURN_INT_EXC(char, unsigned long, PyLong_AsUnsignedLong(x)) +#ifdef HAVE_LONG_LONG + } else if (sizeof(char) <= sizeof(unsigned PY_LONG_LONG)) { + __PYX_VERIFY_RETURN_INT_EXC(char, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x)) +#endif + } + } else { +#if CYTHON_USE_PYLONG_INTERNALS + const digit* digits = ((PyLongObject*)x)->ob_digit; + switch (Py_SIZE(x)) { + case 0: return (char) 0; + case -1: __PYX_VERIFY_RETURN_INT(char, sdigit, (sdigit) (-(sdigit)digits[0])) + case 1: __PYX_VERIFY_RETURN_INT(char, digit, +digits[0]) + case -2: + if (8 * sizeof(char) - 1 > 1 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(char, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(char) - 1 > 2 * PyLong_SHIFT) { + return (char) (((char)-1)*(((((char)digits[1]) << PyLong_SHIFT) | (char)digits[0]))); + } + } + break; + case 2: + if (8 * sizeof(char) > 1 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(char) - 1 > 2 * PyLong_SHIFT) { + return (char) ((((((char)digits[1]) << PyLong_SHIFT) | (char)digits[0]))); + } + } + break; + case -3: + if (8 * sizeof(char) - 1 > 2 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(char, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(char) - 1 > 3 * PyLong_SHIFT) { + return (char) (((char)-1)*(((((((char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0]))); + } + } + break; + case 3: + if (8 * sizeof(char) > 2 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(char) - 1 > 3 * PyLong_SHIFT) { + return (char) ((((((((char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0]))); + } + } + break; + case -4: + if (8 * sizeof(char) - 1 > 3 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(char, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(char) - 1 > 4 * PyLong_SHIFT) { + return (char) (((char)-1)*(((((((((char)digits[3]) << PyLong_SHIFT) | (char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0]))); + } + } + break; + case 4: + if (8 * sizeof(char) > 3 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(char) - 1 > 4 * PyLong_SHIFT) { + return (char) ((((((((((char)digits[3]) << PyLong_SHIFT) | (char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0]))); + } + } + break; + } +#endif + if (sizeof(char) <= sizeof(long)) { + __PYX_VERIFY_RETURN_INT_EXC(char, long, PyLong_AsLong(x)) +#ifdef HAVE_LONG_LONG + } else if (sizeof(char) <= sizeof(PY_LONG_LONG)) { + __PYX_VERIFY_RETURN_INT_EXC(char, PY_LONG_LONG, PyLong_AsLongLong(x)) +#endif + } + } + { +#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray) + PyErr_SetString(PyExc_RuntimeError, + "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers"); +#else + char val; + PyObject *v = __Pyx_PyNumber_IntOrLong(x); + #if PY_MAJOR_VERSION < 3 + if (likely(v) && !PyLong_Check(v)) { + PyObject *tmp = v; + v = PyNumber_Long(tmp); + Py_DECREF(tmp); + } + #endif + if (likely(v)) { + int one = 1; int is_little = (int)*(unsigned char *)&one; + unsigned char *bytes = (unsigned char *)&val; + int ret = _PyLong_AsByteArray((PyLongObject *)v, + bytes, sizeof(val), + is_little, !is_unsigned); + Py_DECREF(v); + if (likely(!ret)) + return val; + } +#endif + return (char) -1; + } + } else { + char val; + PyObject *tmp = __Pyx_PyNumber_IntOrLong(x); + if (!tmp) return (char) -1; + val = __Pyx_PyInt_As_char(tmp); + Py_DECREF(tmp); + return val; + } +raise_overflow: + PyErr_SetString(PyExc_OverflowError, + "value too large to convert to char"); + return (char) -1; +raise_neg_overflow: + PyErr_SetString(PyExc_OverflowError, + "can't convert negative value to char"); + return (char) -1; +} + +/* CIntToPy */ +static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value) { + const long neg_one = (long) ((long) 0 - (long) 1), const_zero = (long) 0; + const int is_unsigned = neg_one > const_zero; + if (is_unsigned) { + if (sizeof(long) < sizeof(long)) { + return PyInt_FromLong((long) value); + } else if (sizeof(long) <= sizeof(unsigned long)) { + return PyLong_FromUnsignedLong((unsigned long) value); +#ifdef HAVE_LONG_LONG + } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) { + return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value); +#endif + } + } else { + if (sizeof(long) <= sizeof(long)) { + return PyInt_FromLong((long) value); +#ifdef HAVE_LONG_LONG + } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) { + return PyLong_FromLongLong((PY_LONG_LONG) value); +#endif + } + } + { + int one = 1; int little = (int)*(unsigned char *)&one; + unsigned char *bytes = (unsigned char *)&value; + return _PyLong_FromByteArray(bytes, sizeof(long), + little, !is_unsigned); + } +} + +/* CIntFromPy */ +static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) { + const int neg_one = (int) ((int) 0 - (int) 1), const_zero = (int) 0; + const int is_unsigned = neg_one > const_zero; +#if PY_MAJOR_VERSION < 3 + if (likely(PyInt_Check(x))) { + if (sizeof(int) < sizeof(long)) { + __PYX_VERIFY_RETURN_INT(int, long, PyInt_AS_LONG(x)) + } else { + long val = PyInt_AS_LONG(x); + if (is_unsigned && unlikely(val < 0)) { + goto raise_neg_overflow; + } + return (int) val; + } + } else +#endif + if (likely(PyLong_Check(x))) { + if (is_unsigned) { +#if CYTHON_USE_PYLONG_INTERNALS + const digit* digits = ((PyLongObject*)x)->ob_digit; + switch (Py_SIZE(x)) { + case 0: return (int) 0; + case 1: __PYX_VERIFY_RETURN_INT(int, digit, digits[0]) + case 2: + if (8 * sizeof(int) > 1 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(int) >= 2 * PyLong_SHIFT) { + return (int) (((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0])); + } + } + break; + case 3: + if (8 * sizeof(int) > 2 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(int) >= 3 * PyLong_SHIFT) { + return (int) (((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])); + } + } + break; + case 4: + if (8 * sizeof(int) > 3 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(int) >= 4 * PyLong_SHIFT) { + return (int) (((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])); + } + } + break; + } +#endif +#if CYTHON_COMPILING_IN_CPYTHON + if (unlikely(Py_SIZE(x) < 0)) { + goto raise_neg_overflow; + } +#else + { + int result = PyObject_RichCompareBool(x, Py_False, Py_LT); + if (unlikely(result < 0)) + return (int) -1; + if (unlikely(result == 1)) + goto raise_neg_overflow; + } +#endif + if (sizeof(int) <= sizeof(unsigned long)) { + __PYX_VERIFY_RETURN_INT_EXC(int, unsigned long, PyLong_AsUnsignedLong(x)) +#ifdef HAVE_LONG_LONG + } else if (sizeof(int) <= sizeof(unsigned PY_LONG_LONG)) { + __PYX_VERIFY_RETURN_INT_EXC(int, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x)) +#endif + } + } else { +#if CYTHON_USE_PYLONG_INTERNALS + const digit* digits = ((PyLongObject*)x)->ob_digit; + switch (Py_SIZE(x)) { + case 0: return (int) 0; + case -1: __PYX_VERIFY_RETURN_INT(int, sdigit, (sdigit) (-(sdigit)digits[0])) + case 1: __PYX_VERIFY_RETURN_INT(int, digit, +digits[0]) + case -2: + if (8 * sizeof(int) - 1 > 1 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) { + return (int) (((int)-1)*(((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0]))); + } + } + break; + case 2: + if (8 * sizeof(int) > 1 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) { + return (int) ((((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0]))); + } + } + break; + case -3: + if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) { + return (int) (((int)-1)*(((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0]))); + } + } + break; + case 3: + if (8 * sizeof(int) > 2 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) { + return (int) ((((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0]))); + } + } + break; + case -4: + if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(int) - 1 > 4 * PyLong_SHIFT) { + return (int) (((int)-1)*(((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0]))); + } + } + break; + case 4: + if (8 * sizeof(int) > 3 * PyLong_SHIFT) { + if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) { + __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]))) + } else if (8 * sizeof(int) - 1 > 4 * PyLong_SHIFT) { + return (int) ((((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0]))); + } + } + break; + } +#endif + if (sizeof(int) <= sizeof(long)) { + __PYX_VERIFY_RETURN_INT_EXC(int, long, PyLong_AsLong(x)) +#ifdef HAVE_LONG_LONG + } else if (sizeof(int) <= sizeof(PY_LONG_LONG)) { + __PYX_VERIFY_RETURN_INT_EXC(int, PY_LONG_LONG, PyLong_AsLongLong(x)) +#endif + } + } + { +#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray) + PyErr_SetString(PyExc_RuntimeError, + "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers"); +#else + int val; + PyObject *v = __Pyx_PyNumber_IntOrLong(x); + #if PY_MAJOR_VERSION < 3 + if (likely(v) && !PyLong_Check(v)) { + PyObject *tmp = v; + v = PyNumber_Long(tmp); + Py_DECREF(tmp); + } + #endif + if (likely(v)) { + int one = 1; int is_little = (int)*(unsigned char *)&one; + unsigned char *bytes = (unsigned char *)&val; + int ret = _PyLong_AsByteArray((PyLongObject *)v, + bytes, sizeof(val), + is_little, !is_unsigned); + Py_DECREF(v); + if (likely(!ret)) + return val; + } +#endif + return (int) -1; + } + } else { + int val; + PyObject *tmp = __Pyx_PyNumber_IntOrLong(x); + if (!tmp) return (int) -1; + val = __Pyx_PyInt_As_int(tmp); + Py_DECREF(tmp); + return val; + } +raise_overflow: + PyErr_SetString(PyExc_OverflowError, + "value too large to convert to int"); + return (int) -1; +raise_neg_overflow: + PyErr_SetString(PyExc_OverflowError, + "can't convert negative value to int"); + return (int) -1; +} + +/* FastTypeChecks */ +#if CYTHON_COMPILING_IN_CPYTHON +static int __Pyx_InBases(PyTypeObject *a, PyTypeObject *b) { + while (a) { + a = a->tp_base; + if (a == b) + return 1; + } + return b == &PyBaseObject_Type; +} +static CYTHON_INLINE int __Pyx_IsSubtype(PyTypeObject *a, PyTypeObject *b) { + PyObject *mro; + if (a == b) return 1; + mro = a->tp_mro; + if (likely(mro)) { + Py_ssize_t i, n; + n = PyTuple_GET_SIZE(mro); + for (i = 0; i < n; i++) { + if (PyTuple_GET_ITEM(mro, i) == (PyObject *)b) + return 1; + } + return 0; + } + return __Pyx_InBases(a, b); +} +#if PY_MAJOR_VERSION == 2 +static int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err, PyObject* exc_type1, PyObject* exc_type2) { + PyObject *exception, *value, *tb; + int res; + __Pyx_PyThreadState_declare + __Pyx_PyThreadState_assign + __Pyx_ErrFetch(&exception, &value, &tb); + res = exc_type1 ? PyObject_IsSubclass(err, exc_type1) : 0; + if (unlikely(res == -1)) { + PyErr_WriteUnraisable(err); + res = 0; + } + if (!res) { + res = PyObject_IsSubclass(err, exc_type2); + if (unlikely(res == -1)) { + PyErr_WriteUnraisable(err); + res = 0; + } + } + __Pyx_ErrRestore(exception, value, tb); + return res; +} +#else +static CYTHON_INLINE int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err, PyObject* exc_type1, PyObject *exc_type2) { + int res = exc_type1 ? __Pyx_IsSubtype((PyTypeObject*)err, (PyTypeObject*)exc_type1) : 0; + if (!res) { + res = __Pyx_IsSubtype((PyTypeObject*)err, (PyTypeObject*)exc_type2); + } + return res; +} +#endif +static int __Pyx_PyErr_GivenExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) { + Py_ssize_t i, n; + assert(PyExceptionClass_Check(exc_type)); + n = PyTuple_GET_SIZE(tuple); +#if PY_MAJOR_VERSION >= 3 + for (i=0; ip) { + #if PY_MAJOR_VERSION < 3 + if (t->is_unicode) { + *t->p = PyUnicode_DecodeUTF8(t->s, t->n - 1, NULL); + } else if (t->intern) { + *t->p = PyString_InternFromString(t->s); + } else { + *t->p = PyString_FromStringAndSize(t->s, t->n - 1); + } + #else + if (t->is_unicode | t->is_str) { + if (t->intern) { + *t->p = PyUnicode_InternFromString(t->s); + } else if (t->encoding) { + *t->p = PyUnicode_Decode(t->s, t->n - 1, t->encoding, NULL); + } else { + *t->p = PyUnicode_FromStringAndSize(t->s, t->n - 1); + } + } else { + *t->p = PyBytes_FromStringAndSize(t->s, t->n - 1); + } + #endif + if (!*t->p) + return -1; + if (PyObject_Hash(*t->p) == -1) + return -1; + ++t; + } + return 0; +} + +static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char* c_str) { + return __Pyx_PyUnicode_FromStringAndSize(c_str, (Py_ssize_t)strlen(c_str)); +} +static CYTHON_INLINE const char* __Pyx_PyObject_AsString(PyObject* o) { + Py_ssize_t ignore; + return __Pyx_PyObject_AsStringAndSize(o, &ignore); +} +#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII || __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT +#if !CYTHON_PEP393_ENABLED +static const char* __Pyx_PyUnicode_AsStringAndSize(PyObject* o, Py_ssize_t *length) { + char* defenc_c; + PyObject* defenc = _PyUnicode_AsDefaultEncodedString(o, NULL); + if (!defenc) return NULL; + defenc_c = PyBytes_AS_STRING(defenc); +#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII + { + char* end = defenc_c + PyBytes_GET_SIZE(defenc); + char* c; + for (c = defenc_c; c < end; c++) { + if ((unsigned char) (*c) >= 128) { + PyUnicode_AsASCIIString(o); + return NULL; + } + } + } +#endif + *length = PyBytes_GET_SIZE(defenc); + return defenc_c; +} +#else +static CYTHON_INLINE const char* __Pyx_PyUnicode_AsStringAndSize(PyObject* o, Py_ssize_t *length) { + if (unlikely(__Pyx_PyUnicode_READY(o) == -1)) return NULL; +#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII + if (likely(PyUnicode_IS_ASCII(o))) { + *length = PyUnicode_GET_LENGTH(o); + return PyUnicode_AsUTF8(o); + } else { + PyUnicode_AsASCIIString(o); + return NULL; + } +#else + return PyUnicode_AsUTF8AndSize(o, length); +#endif +} +#endif +#endif +static CYTHON_INLINE const char* __Pyx_PyObject_AsStringAndSize(PyObject* o, Py_ssize_t *length) { +#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII || __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT + if ( +#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII + __Pyx_sys_getdefaultencoding_not_ascii && +#endif + PyUnicode_Check(o)) { + return __Pyx_PyUnicode_AsStringAndSize(o, length); + } else +#endif +#if (!CYTHON_COMPILING_IN_PYPY) || (defined(PyByteArray_AS_STRING) && defined(PyByteArray_GET_SIZE)) + if (PyByteArray_Check(o)) { + *length = PyByteArray_GET_SIZE(o); + return PyByteArray_AS_STRING(o); + } else +#endif + { + char* result; + int r = PyBytes_AsStringAndSize(o, &result, length); + if (unlikely(r < 0)) { + return NULL; + } else { + return result; + } + } +} +static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject* x) { + int is_true = x == Py_True; + if (is_true | (x == Py_False) | (x == Py_None)) return is_true; + else return PyObject_IsTrue(x); +} +static CYTHON_INLINE int __Pyx_PyObject_IsTrueAndDecref(PyObject* x) { + int retval; + if (unlikely(!x)) return -1; + retval = __Pyx_PyObject_IsTrue(x); + Py_DECREF(x); + return retval; +} +static PyObject* __Pyx_PyNumber_IntOrLongWrongResultType(PyObject* result, const char* type_name) { +#if PY_MAJOR_VERSION >= 3 + if (PyLong_Check(result)) { + if (PyErr_WarnFormat(PyExc_DeprecationWarning, 1, + "__int__ returned non-int (type %.200s). " + "The ability to return an instance of a strict subclass of int " + "is deprecated, and may be removed in a future version of Python.", + Py_TYPE(result)->tp_name)) { + Py_DECREF(result); + return NULL; + } + return result; + } +#endif + PyErr_Format(PyExc_TypeError, + "__%.4s__ returned non-%.4s (type %.200s)", + type_name, type_name, Py_TYPE(result)->tp_name); + Py_DECREF(result); + return NULL; +} +static CYTHON_INLINE PyObject* __Pyx_PyNumber_IntOrLong(PyObject* x) { +#if CYTHON_USE_TYPE_SLOTS + PyNumberMethods *m; +#endif + const char *name = NULL; + PyObject *res = NULL; +#if PY_MAJOR_VERSION < 3 + if (likely(PyInt_Check(x) || PyLong_Check(x))) +#else + if (likely(PyLong_Check(x))) +#endif + return __Pyx_NewRef(x); +#if CYTHON_USE_TYPE_SLOTS + m = Py_TYPE(x)->tp_as_number; + #if PY_MAJOR_VERSION < 3 + if (m && m->nb_int) { + name = "int"; + res = m->nb_int(x); + } + else if (m && m->nb_long) { + name = "long"; + res = m->nb_long(x); + } + #else + if (likely(m && m->nb_int)) { + name = "int"; + res = m->nb_int(x); + } + #endif +#else + if (!PyBytes_CheckExact(x) && !PyUnicode_CheckExact(x)) { + res = PyNumber_Int(x); + } +#endif + if (likely(res)) { +#if PY_MAJOR_VERSION < 3 + if (unlikely(!PyInt_Check(res) && !PyLong_Check(res))) { +#else + if (unlikely(!PyLong_CheckExact(res))) { +#endif + return __Pyx_PyNumber_IntOrLongWrongResultType(res, name); + } + } + else if (!PyErr_Occurred()) { + PyErr_SetString(PyExc_TypeError, + "an integer is required"); + } + return res; +} +static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject* b) { + Py_ssize_t ival; + PyObject *x; +#if PY_MAJOR_VERSION < 3 + if (likely(PyInt_CheckExact(b))) { + if (sizeof(Py_ssize_t) >= sizeof(long)) + return PyInt_AS_LONG(b); + else + return PyInt_AsSsize_t(b); + } +#endif + if (likely(PyLong_CheckExact(b))) { + #if CYTHON_USE_PYLONG_INTERNALS + const digit* digits = ((PyLongObject*)b)->ob_digit; + const Py_ssize_t size = Py_SIZE(b); + if (likely(__Pyx_sst_abs(size) <= 1)) { + ival = likely(size) ? digits[0] : 0; + if (size == -1) ival = -ival; + return ival; + } else { + switch (size) { + case 2: + if (8 * sizeof(Py_ssize_t) > 2 * PyLong_SHIFT) { + return (Py_ssize_t) (((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])); + } + break; + case -2: + if (8 * sizeof(Py_ssize_t) > 2 * PyLong_SHIFT) { + return -(Py_ssize_t) (((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])); + } + break; + case 3: + if (8 * sizeof(Py_ssize_t) > 3 * PyLong_SHIFT) { + return (Py_ssize_t) (((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])); + } + break; + case -3: + if (8 * sizeof(Py_ssize_t) > 3 * PyLong_SHIFT) { + return -(Py_ssize_t) (((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])); + } + break; + case 4: + if (8 * sizeof(Py_ssize_t) > 4 * PyLong_SHIFT) { + return (Py_ssize_t) (((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])); + } + break; + case -4: + if (8 * sizeof(Py_ssize_t) > 4 * PyLong_SHIFT) { + return -(Py_ssize_t) (((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])); + } + break; + } + } + #endif + return PyLong_AsSsize_t(b); + } + x = PyNumber_Index(b); + if (!x) return -1; + ival = PyInt_AsSsize_t(x); + Py_DECREF(x); + return ival; +} +static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b) { + return b ? __Pyx_NewRef(Py_True) : __Pyx_NewRef(Py_False); +} +static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t ival) { + return PyInt_FromSize_t(ival); +} + + +#endif /* Py_PYTHON_H */ diff --git a/ddtrace/vendor/msgpack/_cmsgpack.pyx b/ddtrace/vendor/msgpack/_cmsgpack.pyx new file mode 100644 index 0000000000..8ebdbf58b2 --- /dev/null +++ b/ddtrace/vendor/msgpack/_cmsgpack.pyx @@ -0,0 +1,4 @@ +# coding: utf-8 +#cython: embedsignature=True, c_string_encoding=ascii, language_level=3 +include "_packer.pyx" +include "_unpacker.pyx" diff --git a/ddtrace/vendor/msgpack/_packer.pyx b/ddtrace/vendor/msgpack/_packer.pyx new file mode 100644 index 0000000000..c0e5a5c4b5 --- /dev/null +++ b/ddtrace/vendor/msgpack/_packer.pyx @@ -0,0 +1,362 @@ +# coding: utf-8 + +from cpython cimport * +from cpython.bytearray cimport PyByteArray_Check, PyByteArray_CheckExact + +from ddtrace.vendor.msgpack import ExtType + + +cdef extern from "Python.h": + + int PyMemoryView_Check(object obj) + char* PyUnicode_AsUTF8AndSize(object obj, Py_ssize_t *l) except NULL + + +cdef extern from "pack.h": + struct msgpack_packer: + char* buf + size_t length + size_t buf_size + bint use_bin_type + + int msgpack_pack_int(msgpack_packer* pk, int d) + int msgpack_pack_nil(msgpack_packer* pk) + int msgpack_pack_true(msgpack_packer* pk) + int msgpack_pack_false(msgpack_packer* pk) + int msgpack_pack_long(msgpack_packer* pk, long d) + int msgpack_pack_long_long(msgpack_packer* pk, long long d) + int msgpack_pack_unsigned_long_long(msgpack_packer* pk, unsigned long long d) + int msgpack_pack_float(msgpack_packer* pk, float d) + int msgpack_pack_double(msgpack_packer* pk, double d) + int msgpack_pack_array(msgpack_packer* pk, size_t l) + int msgpack_pack_map(msgpack_packer* pk, size_t l) + int msgpack_pack_raw(msgpack_packer* pk, size_t l) + int msgpack_pack_bin(msgpack_packer* pk, size_t l) + int msgpack_pack_raw_body(msgpack_packer* pk, char* body, size_t l) + int msgpack_pack_ext(msgpack_packer* pk, char typecode, size_t l) + int msgpack_pack_unicode(msgpack_packer* pk, object o, long long limit) + +cdef extern from "buff_converter.h": + object buff_to_buff(char *, Py_ssize_t) + +cdef int DEFAULT_RECURSE_LIMIT=511 +cdef long long ITEM_LIMIT = (2**32)-1 + + +cdef inline int PyBytesLike_Check(object o): + return PyBytes_Check(o) or PyByteArray_Check(o) + + +cdef inline int PyBytesLike_CheckExact(object o): + return PyBytes_CheckExact(o) or PyByteArray_CheckExact(o) + + +cdef class Packer(object): + """ + MessagePack Packer + + usage:: + + packer = Packer() + astream.write(packer.pack(a)) + astream.write(packer.pack(b)) + + Packer's constructor has some keyword arguments: + + :param callable default: + Convert user type to builtin type that Packer supports. + See also simplejson's document. + + :param bool use_single_float: + Use single precision float type for float. (default: False) + + :param bool autoreset: + Reset buffer after each pack and return its content as `bytes`. (default: True). + If set this to false, use `bytes()` to get content and `.reset()` to clear buffer. + + :param bool use_bin_type: + Use bin type introduced in msgpack spec 2.0 for bytes. + It also enables str8 type for unicode. + Current default value is false, but it will be changed to true + in future version. You should specify it explicitly. + + :param bool strict_types: + If set to true, types will be checked to be exact. Derived classes + from serializeable types will not be serialized and will be + treated as unsupported type and forwarded to default. + Additionally tuples will not be serialized as lists. + This is useful when trying to implement accurate serialization + for python types. + + :param str unicode_errors: + Error handler for encoding unicode. (default: 'strict') + + :param str encoding: + (deprecated) Convert unicode to bytes with this encoding. (default: 'utf-8') + """ + cdef msgpack_packer pk + cdef object _default + cdef object _bencoding + cdef object _berrors + cdef const char *encoding + cdef const char *unicode_errors + cdef bint strict_types + cdef bool use_float + cdef bint autoreset + + def __cinit__(self): + cdef int buf_size = 1024*1024 + self.pk.buf = PyMem_Malloc(buf_size) + if self.pk.buf == NULL: + raise MemoryError("Unable to allocate internal buffer.") + self.pk.buf_size = buf_size + self.pk.length = 0 + + def __init__(self, default=None, encoding=None, unicode_errors=None, + bint use_single_float=False, bint autoreset=True, bint use_bin_type=False, + bint strict_types=False): + if encoding is not None: + PyErr_WarnEx(DeprecationWarning, "encoding is deprecated.", 1) + self.use_float = use_single_float + self.strict_types = strict_types + self.autoreset = autoreset + self.pk.use_bin_type = use_bin_type + if default is not None: + if not PyCallable_Check(default): + raise TypeError("default must be a callable.") + self._default = default + + self._bencoding = encoding + if encoding is None: + if PY_MAJOR_VERSION < 3: + self.encoding = 'utf-8' + else: + self.encoding = NULL + else: + self.encoding = self._bencoding + + self._berrors = unicode_errors + if unicode_errors is None: + self.unicode_errors = NULL + else: + self.unicode_errors = self._berrors + + def __dealloc__(self): + PyMem_Free(self.pk.buf) + self.pk.buf = NULL + + cdef int _pack(self, object o, int nest_limit=DEFAULT_RECURSE_LIMIT) except -1: + cdef long long llval + cdef unsigned long long ullval + cdef long longval + cdef float fval + cdef double dval + cdef char* rawval + cdef int ret + cdef dict d + cdef Py_ssize_t L + cdef int default_used = 0 + cdef bint strict_types = self.strict_types + cdef Py_buffer view + + if nest_limit < 0: + raise ValueError("recursion limit exceeded.") + + while True: + if o is None: + ret = msgpack_pack_nil(&self.pk) + elif PyBool_Check(o) if strict_types else isinstance(o, bool): + if o: + ret = msgpack_pack_true(&self.pk) + else: + ret = msgpack_pack_false(&self.pk) + elif PyLong_CheckExact(o) if strict_types else PyLong_Check(o): + # PyInt_Check(long) is True for Python 3. + # So we should test long before int. + try: + if o > 0: + ullval = o + ret = msgpack_pack_unsigned_long_long(&self.pk, ullval) + else: + llval = o + ret = msgpack_pack_long_long(&self.pk, llval) + except OverflowError as oe: + if not default_used and self._default is not None: + o = self._default(o) + default_used = True + continue + else: + raise OverflowError("Integer value out of range") + elif PyInt_CheckExact(o) if strict_types else PyInt_Check(o): + longval = o + ret = msgpack_pack_long(&self.pk, longval) + elif PyFloat_CheckExact(o) if strict_types else PyFloat_Check(o): + if self.use_float: + fval = o + ret = msgpack_pack_float(&self.pk, fval) + else: + dval = o + ret = msgpack_pack_double(&self.pk, dval) + elif PyBytesLike_CheckExact(o) if strict_types else PyBytesLike_Check(o): + L = len(o) + if L > ITEM_LIMIT: + PyErr_Format(ValueError, b"%.200s object is too large", Py_TYPE(o).tp_name) + rawval = o + ret = msgpack_pack_bin(&self.pk, L) + if ret == 0: + ret = msgpack_pack_raw_body(&self.pk, rawval, L) + elif PyUnicode_CheckExact(o) if strict_types else PyUnicode_Check(o): + if self.encoding == NULL and self.unicode_errors == NULL: + ret = msgpack_pack_unicode(&self.pk, o, ITEM_LIMIT); + if ret == -2: + raise ValueError("unicode string is too large") + else: + o = PyUnicode_AsEncodedString(o, self.encoding, self.unicode_errors) + L = len(o) + if L > ITEM_LIMIT: + raise ValueError("unicode string is too large") + ret = msgpack_pack_raw(&self.pk, L) + if ret == 0: + rawval = o + ret = msgpack_pack_raw_body(&self.pk, rawval, L) + elif PyDict_CheckExact(o): + d = o + L = len(d) + if L > ITEM_LIMIT: + raise ValueError("dict is too large") + ret = msgpack_pack_map(&self.pk, L) + if ret == 0: + for k, v in d.items(): + ret = self._pack(k, nest_limit-1) + if ret != 0: break + ret = self._pack(v, nest_limit-1) + if ret != 0: break + elif not strict_types and PyDict_Check(o): + L = len(o) + if L > ITEM_LIMIT: + raise ValueError("dict is too large") + ret = msgpack_pack_map(&self.pk, L) + if ret == 0: + for k, v in o.items(): + ret = self._pack(k, nest_limit-1) + if ret != 0: break + ret = self._pack(v, nest_limit-1) + if ret != 0: break + elif type(o) is ExtType if strict_types else isinstance(o, ExtType): + # This should be before Tuple because ExtType is namedtuple. + longval = o.code + rawval = o.data + L = len(o.data) + if L > ITEM_LIMIT: + raise ValueError("EXT data is too large") + ret = msgpack_pack_ext(&self.pk, longval, L) + ret = msgpack_pack_raw_body(&self.pk, rawval, L) + elif PyList_CheckExact(o) if strict_types else (PyTuple_Check(o) or PyList_Check(o)): + L = len(o) + if L > ITEM_LIMIT: + raise ValueError("list is too large") + ret = msgpack_pack_array(&self.pk, L) + if ret == 0: + for v in o: + ret = self._pack(v, nest_limit-1) + if ret != 0: break + elif PyMemoryView_Check(o): + if PyObject_GetBuffer(o, &view, PyBUF_SIMPLE) != 0: + raise ValueError("could not get buffer for memoryview") + L = view.len + if L > ITEM_LIMIT: + PyBuffer_Release(&view); + raise ValueError("memoryview is too large") + ret = msgpack_pack_bin(&self.pk, L) + if ret == 0: + ret = msgpack_pack_raw_body(&self.pk, view.buf, L) + PyBuffer_Release(&view); + elif not default_used and self._default: + o = self._default(o) + default_used = 1 + continue + else: + PyErr_Format(TypeError, b"can not serialize '%.200s' object", Py_TYPE(o).tp_name) + return ret + + cpdef pack(self, object obj): + cdef int ret + try: + ret = self._pack(obj, DEFAULT_RECURSE_LIMIT) + except: + self.pk.length = 0 + raise + if ret: # should not happen. + raise RuntimeError("internal error") + if self.autoreset: + buf = PyBytes_FromStringAndSize(self.pk.buf, self.pk.length) + self.pk.length = 0 + return buf + + def pack_ext_type(self, typecode, data): + msgpack_pack_ext(&self.pk, typecode, len(data)) + msgpack_pack_raw_body(&self.pk, data, len(data)) + + def pack_array_header(self, long long size): + if size > ITEM_LIMIT: + raise ValueError + cdef int ret = msgpack_pack_array(&self.pk, size) + if ret == -1: + raise MemoryError + elif ret: # should not happen + raise TypeError + if self.autoreset: + buf = PyBytes_FromStringAndSize(self.pk.buf, self.pk.length) + self.pk.length = 0 + return buf + + def pack_map_header(self, long long size): + if size > ITEM_LIMIT: + raise ValueError + cdef int ret = msgpack_pack_map(&self.pk, size) + if ret == -1: + raise MemoryError + elif ret: # should not happen + raise TypeError + if self.autoreset: + buf = PyBytes_FromStringAndSize(self.pk.buf, self.pk.length) + self.pk.length = 0 + return buf + + def pack_map_pairs(self, object pairs): + """ + Pack *pairs* as msgpack map type. + + *pairs* should be a sequence of pairs. + (`len(pairs)` and `for k, v in pairs:` should be supported.) + """ + cdef int ret = msgpack_pack_map(&self.pk, len(pairs)) + if ret == 0: + for k, v in pairs: + ret = self._pack(k) + if ret != 0: break + ret = self._pack(v) + if ret != 0: break + if ret == -1: + raise MemoryError + elif ret: # should not happen + raise TypeError + if self.autoreset: + buf = PyBytes_FromStringAndSize(self.pk.buf, self.pk.length) + self.pk.length = 0 + return buf + + def reset(self): + """Reset internal buffer. + + This method is usaful only when autoreset=False. + """ + self.pk.length = 0 + + def bytes(self): + """Return internal buffer contents as bytes object""" + return PyBytes_FromStringAndSize(self.pk.buf, self.pk.length) + + def getbuffer(self): + """Return view of internal buffer.""" + return buff_to_buff(self.pk.buf, self.pk.length) diff --git a/ddtrace/vendor/msgpack/_unpacker.pyx b/ddtrace/vendor/msgpack/_unpacker.pyx new file mode 100644 index 0000000000..5239ba7bc0 --- /dev/null +++ b/ddtrace/vendor/msgpack/_unpacker.pyx @@ -0,0 +1,569 @@ +# coding: utf-8 + +from cpython cimport * + +cdef extern from "Python.h": + ctypedef struct PyObject + cdef int PyObject_AsReadBuffer(object o, const void** buff, Py_ssize_t* buf_len) except -1 + object PyMemoryView_GetContiguous(object obj, int buffertype, char order) + +from libc.stdlib cimport * +from libc.string cimport * +from libc.limits cimport * +ctypedef unsigned long long uint64_t + +from ddtrace.vendor.msgpack.exceptions import ( + BufferFull, + OutOfData, + ExtraData, + FormatError, + StackError, +) +from ddtrace.vendor.msgpack import ExtType + + +cdef extern from "unpack.h": + ctypedef struct msgpack_user: + bint use_list + bint raw + bint has_pairs_hook # call object_hook with k-v pairs + bint strict_map_key + PyObject* object_hook + PyObject* list_hook + PyObject* ext_hook + char *encoding + char *unicode_errors + Py_ssize_t max_str_len + Py_ssize_t max_bin_len + Py_ssize_t max_array_len + Py_ssize_t max_map_len + Py_ssize_t max_ext_len + + ctypedef struct unpack_context: + msgpack_user user + PyObject* obj + Py_ssize_t count + + ctypedef int (*execute_fn)(unpack_context* ctx, const char* data, + Py_ssize_t len, Py_ssize_t* off) except? -1 + execute_fn unpack_construct + execute_fn unpack_skip + execute_fn read_array_header + execute_fn read_map_header + void unpack_init(unpack_context* ctx) + object unpack_data(unpack_context* ctx) + void unpack_clear(unpack_context* ctx) + +cdef inline init_ctx(unpack_context *ctx, + object object_hook, object object_pairs_hook, + object list_hook, object ext_hook, + bint use_list, bint raw, bint strict_map_key, + const char* encoding, const char* unicode_errors, + Py_ssize_t max_str_len, Py_ssize_t max_bin_len, + Py_ssize_t max_array_len, Py_ssize_t max_map_len, + Py_ssize_t max_ext_len): + unpack_init(ctx) + ctx.user.use_list = use_list + ctx.user.raw = raw + ctx.user.strict_map_key = strict_map_key + ctx.user.object_hook = ctx.user.list_hook = NULL + ctx.user.max_str_len = max_str_len + ctx.user.max_bin_len = max_bin_len + ctx.user.max_array_len = max_array_len + ctx.user.max_map_len = max_map_len + ctx.user.max_ext_len = max_ext_len + + if object_hook is not None and object_pairs_hook is not None: + raise TypeError("object_pairs_hook and object_hook are mutually exclusive.") + + if object_hook is not None: + if not PyCallable_Check(object_hook): + raise TypeError("object_hook must be a callable.") + ctx.user.object_hook = object_hook + + if object_pairs_hook is None: + ctx.user.has_pairs_hook = False + else: + if not PyCallable_Check(object_pairs_hook): + raise TypeError("object_pairs_hook must be a callable.") + ctx.user.object_hook = object_pairs_hook + ctx.user.has_pairs_hook = True + + if list_hook is not None: + if not PyCallable_Check(list_hook): + raise TypeError("list_hook must be a callable.") + ctx.user.list_hook = list_hook + + if ext_hook is not None: + if not PyCallable_Check(ext_hook): + raise TypeError("ext_hook must be a callable.") + ctx.user.ext_hook = ext_hook + + ctx.user.encoding = encoding + ctx.user.unicode_errors = unicode_errors + +def default_read_extended_type(typecode, data): + raise NotImplementedError("Cannot decode extended type with typecode=%d" % typecode) + +cdef inline int get_data_from_buffer(object obj, + Py_buffer *view, + char **buf, + Py_ssize_t *buffer_len, + int *new_protocol) except 0: + cdef object contiguous + cdef Py_buffer tmp + if PyObject_CheckBuffer(obj): + new_protocol[0] = 1 + if PyObject_GetBuffer(obj, view, PyBUF_FULL_RO) == -1: + raise + if view.itemsize != 1: + PyBuffer_Release(view) + raise BufferError("cannot unpack from multi-byte object") + if PyBuffer_IsContiguous(view, b'A') == 0: + PyBuffer_Release(view) + # create a contiguous copy and get buffer + contiguous = PyMemoryView_GetContiguous(obj, PyBUF_READ, b'C') + PyObject_GetBuffer(contiguous, view, PyBUF_SIMPLE) + # view must hold the only reference to contiguous, + # so memory is freed when view is released + Py_DECREF(contiguous) + buffer_len[0] = view.len + buf[0] = view.buf + return 1 + else: + new_protocol[0] = 0 + if PyObject_AsReadBuffer(obj, buf, buffer_len) == -1: + raise BufferError("could not get memoryview") + PyErr_WarnEx(RuntimeWarning, + "using old buffer interface to unpack %s; " + "this leads to unpacking errors if slicing is used and " + "will be removed in a future version" % type(obj), + 1) + return 1 + +def unpackb(object packed, object object_hook=None, object list_hook=None, + bint use_list=True, bint raw=True, bint strict_map_key=False, + encoding=None, unicode_errors=None, + object_pairs_hook=None, ext_hook=ExtType, + Py_ssize_t max_str_len=-1, + Py_ssize_t max_bin_len=-1, + Py_ssize_t max_array_len=-1, + Py_ssize_t max_map_len=-1, + Py_ssize_t max_ext_len=-1): + """ + Unpack packed_bytes to object. Returns an unpacked object. + + Raises ``ExtraData`` when *packed* contains extra bytes. + Raises ``ValueError`` when *packed* is incomplete. + Raises ``FormatError`` when *packed* is not valid msgpack. + Raises ``StackError`` when *packed* contains too nested. + Other exceptions can be raised during unpacking. + + See :class:`Unpacker` for options. + + *max_xxx_len* options are configured automatically from ``len(packed)``. + """ + cdef unpack_context ctx + cdef Py_ssize_t off = 0 + cdef int ret + + cdef Py_buffer view + cdef char* buf = NULL + cdef Py_ssize_t buf_len + cdef const char* cenc = NULL + cdef const char* cerr = NULL + cdef int new_protocol = 0 + + if encoding is not None: + PyErr_WarnEx(DeprecationWarning, "encoding is deprecated, Use raw=False instead.", 1) + cenc = encoding + + if unicode_errors is not None: + cerr = unicode_errors + + get_data_from_buffer(packed, &view, &buf, &buf_len, &new_protocol) + + if max_str_len == -1: + max_str_len = buf_len + if max_bin_len == -1: + max_bin_len = buf_len + if max_array_len == -1: + max_array_len = buf_len + if max_map_len == -1: + max_map_len = buf_len//2 + if max_ext_len == -1: + max_ext_len = buf_len + + try: + init_ctx(&ctx, object_hook, object_pairs_hook, list_hook, ext_hook, + use_list, raw, strict_map_key, cenc, cerr, + max_str_len, max_bin_len, max_array_len, max_map_len, max_ext_len) + ret = unpack_construct(&ctx, buf, buf_len, &off) + finally: + if new_protocol: + PyBuffer_Release(&view); + + if ret == 1: + obj = unpack_data(&ctx) + if off < buf_len: + raise ExtraData(obj, PyBytes_FromStringAndSize(buf+off, buf_len-off)) + return obj + unpack_clear(&ctx) + if ret == 0: + raise ValueError("Unpack failed: incomplete input") + elif ret == -2: + raise FormatError + elif ret == -3: + raise StackError + raise ValueError("Unpack failed: error = %d" % (ret,)) + + +def unpack(object stream, **kwargs): + PyErr_WarnEx( + DeprecationWarning, + "Direct calling implementation's unpack() is deprecated, Use msgpack.unpack() or unpackb() instead.", 1) + data = stream.read() + return unpackb(data, **kwargs) + + +cdef class Unpacker(object): + """Streaming unpacker. + + Arguments: + + :param file_like: + File-like object having `.read(n)` method. + If specified, unpacker reads serialized data from it and :meth:`feed()` is not usable. + + :param int read_size: + Used as `file_like.read(read_size)`. (default: `min(1024**2, max_buffer_size)`) + + :param bool use_list: + If true, unpack msgpack array to Python list. + Otherwise, unpack to Python tuple. (default: True) + + :param bool raw: + If true, unpack msgpack raw to Python bytes (default). + Otherwise, unpack to Python str (or unicode on Python 2) by decoding + with UTF-8 encoding (recommended). + Currently, the default is true, but it will be changed to false in + near future. So you must specify it explicitly for keeping backward + compatibility. + + *encoding* option which is deprecated overrides this option. + + :param bool strict_map_key: + If true, only str or bytes are accepted for map (dict) keys. + It's False by default for backward-compatibility. + But it will be True from msgpack 1.0. + + :param callable object_hook: + When specified, it should be callable. + Unpacker calls it with a dict argument after unpacking msgpack map. + (See also simplejson) + + :param callable object_pairs_hook: + When specified, it should be callable. + Unpacker calls it with a list of key-value pairs after unpacking msgpack map. + (See also simplejson) + + :param int max_buffer_size: + Limits size of data waiting unpacked. 0 means system's INT_MAX (default). + Raises `BufferFull` exception when it is insufficient. + You should set this parameter when unpacking data from untrusted source. + + :param int max_str_len: + Deprecated, use *max_buffer_size* instead. + Limits max length of str. (default: max_buffer_size or 1024*1024) + + :param int max_bin_len: + Deprecated, use *max_buffer_size* instead. + Limits max length of bin. (default: max_buffer_size or 1024*1024) + + :param int max_array_len: + Limits max length of array. (default: max_buffer_size or 128*1024) + + :param int max_map_len: + Limits max length of map. (default: max_buffer_size//2 or 32*1024) + + :param int max_ext_len: + Deprecated, use *max_buffer_size* instead. + Limits max size of ext type. (default: max_buffer_size or 1024*1024) + + :param str encoding: + Deprecated, use ``raw=False`` instead. + Encoding used for decoding msgpack raw. + If it is None (default), msgpack raw is deserialized to Python bytes. + + :param str unicode_errors: + Error handler used for decoding str type. (default: `'strict'`) + + + Example of streaming deserialize from file-like object:: + + unpacker = Unpacker(file_like, raw=False, max_buffer_size=10*1024*1024) + for o in unpacker: + process(o) + + Example of streaming deserialize from socket:: + + unpacker = Unpacker(raw=False, max_buffer_size=10*1024*1024) + while True: + buf = sock.recv(1024**2) + if not buf: + break + unpacker.feed(buf) + for o in unpacker: + process(o) + + Raises ``ExtraData`` when *packed* contains extra bytes. + Raises ``OutOfData`` when *packed* is incomplete. + Raises ``FormatError`` when *packed* is not valid msgpack. + Raises ``StackError`` when *packed* contains too nested. + Other exceptions can be raised during unpacking. + """ + cdef unpack_context ctx + cdef char* buf + cdef Py_ssize_t buf_size, buf_head, buf_tail + cdef object file_like + cdef object file_like_read + cdef Py_ssize_t read_size + # To maintain refcnt. + cdef object object_hook, object_pairs_hook, list_hook, ext_hook + cdef object encoding, unicode_errors + cdef Py_ssize_t max_buffer_size + cdef uint64_t stream_offset + + def __cinit__(self): + self.buf = NULL + + def __dealloc__(self): + PyMem_Free(self.buf) + self.buf = NULL + + def __init__(self, file_like=None, Py_ssize_t read_size=0, + bint use_list=True, bint raw=True, bint strict_map_key=False, + object object_hook=None, object object_pairs_hook=None, object list_hook=None, + encoding=None, unicode_errors=None, Py_ssize_t max_buffer_size=0, + object ext_hook=ExtType, + Py_ssize_t max_str_len=-1, + Py_ssize_t max_bin_len=-1, + Py_ssize_t max_array_len=-1, + Py_ssize_t max_map_len=-1, + Py_ssize_t max_ext_len=-1): + cdef const char *cenc=NULL, + cdef const char *cerr=NULL + + self.object_hook = object_hook + self.object_pairs_hook = object_pairs_hook + self.list_hook = list_hook + self.ext_hook = ext_hook + + self.file_like = file_like + if file_like: + self.file_like_read = file_like.read + if not PyCallable_Check(self.file_like_read): + raise TypeError("`file_like.read` must be a callable.") + + if max_str_len == -1: + max_str_len = max_buffer_size or 1024*1024 + if max_bin_len == -1: + max_bin_len = max_buffer_size or 1024*1024 + if max_array_len == -1: + max_array_len = max_buffer_size or 128*1024 + if max_map_len == -1: + max_map_len = max_buffer_size//2 or 32*1024 + if max_ext_len == -1: + max_ext_len = max_buffer_size or 1024*1024 + + if not max_buffer_size: + max_buffer_size = INT_MAX + if read_size > max_buffer_size: + raise ValueError("read_size should be less or equal to max_buffer_size") + if not read_size: + read_size = min(max_buffer_size, 1024**2) + self.max_buffer_size = max_buffer_size + self.read_size = read_size + self.buf = PyMem_Malloc(read_size) + if self.buf == NULL: + raise MemoryError("Unable to allocate internal buffer.") + self.buf_size = read_size + self.buf_head = 0 + self.buf_tail = 0 + self.stream_offset = 0 + + if encoding is not None: + PyErr_WarnEx(DeprecationWarning, "encoding is deprecated, Use raw=False instead.", 1) + self.encoding = encoding + cenc = encoding + + if unicode_errors is not None: + self.unicode_errors = unicode_errors + cerr = unicode_errors + + init_ctx(&self.ctx, object_hook, object_pairs_hook, list_hook, + ext_hook, use_list, raw, strict_map_key, cenc, cerr, + max_str_len, max_bin_len, max_array_len, + max_map_len, max_ext_len) + + def feed(self, object next_bytes): + """Append `next_bytes` to internal buffer.""" + cdef Py_buffer pybuff + cdef int new_protocol = 0 + cdef char* buf + cdef Py_ssize_t buf_len + + if self.file_like is not None: + raise AssertionError( + "unpacker.feed() is not be able to use with `file_like`.") + + get_data_from_buffer(next_bytes, &pybuff, &buf, &buf_len, &new_protocol) + try: + self.append_buffer(buf, buf_len) + finally: + if new_protocol: + PyBuffer_Release(&pybuff) + + cdef append_buffer(self, void* _buf, Py_ssize_t _buf_len): + cdef: + char* buf = self.buf + char* new_buf + Py_ssize_t head = self.buf_head + Py_ssize_t tail = self.buf_tail + Py_ssize_t buf_size = self.buf_size + Py_ssize_t new_size + + if tail + _buf_len > buf_size: + if ((tail - head) + _buf_len) <= buf_size: + # move to front. + memmove(buf, buf + head, tail - head) + tail -= head + head = 0 + else: + # expand buffer. + new_size = (tail-head) + _buf_len + if new_size > self.max_buffer_size: + raise BufferFull + new_size = min(new_size*2, self.max_buffer_size) + new_buf = PyMem_Malloc(new_size) + if new_buf == NULL: + # self.buf still holds old buffer and will be freed during + # obj destruction + raise MemoryError("Unable to enlarge internal buffer.") + memcpy(new_buf, buf + head, tail - head) + PyMem_Free(buf) + + buf = new_buf + buf_size = new_size + tail -= head + head = 0 + + memcpy(buf + tail, (_buf), _buf_len) + self.buf = buf + self.buf_head = head + self.buf_size = buf_size + self.buf_tail = tail + _buf_len + + cdef read_from_file(self): + next_bytes = self.file_like_read( + min(self.read_size, + self.max_buffer_size - (self.buf_tail - self.buf_head) + )) + if next_bytes: + self.append_buffer(PyBytes_AsString(next_bytes), PyBytes_Size(next_bytes)) + else: + self.file_like = None + + cdef object _unpack(self, execute_fn execute, bint iter=0): + cdef int ret + cdef object obj + cdef Py_ssize_t prev_head + + if self.buf_head >= self.buf_tail and self.file_like is not None: + self.read_from_file() + + while 1: + prev_head = self.buf_head + if prev_head >= self.buf_tail: + if iter: + raise StopIteration("No more data to unpack.") + else: + raise OutOfData("No more data to unpack.") + + ret = execute(&self.ctx, self.buf, self.buf_tail, &self.buf_head) + self.stream_offset += self.buf_head - prev_head + + if ret == 1: + obj = unpack_data(&self.ctx) + unpack_init(&self.ctx) + return obj + elif ret == 0: + if self.file_like is not None: + self.read_from_file() + continue + if iter: + raise StopIteration("No more data to unpack.") + else: + raise OutOfData("No more data to unpack.") + elif ret == -2: + raise FormatError + elif ret == -3: + raise StackError + else: + raise ValueError("Unpack failed: error = %d" % (ret,)) + + def read_bytes(self, Py_ssize_t nbytes): + """Read a specified number of raw bytes from the stream""" + cdef Py_ssize_t nread + nread = min(self.buf_tail - self.buf_head, nbytes) + ret = PyBytes_FromStringAndSize(self.buf + self.buf_head, nread) + self.buf_head += nread + if len(ret) < nbytes and self.file_like is not None: + ret += self.file_like.read(nbytes - len(ret)) + return ret + + def unpack(self): + """Unpack one object + + Raises `OutOfData` when there are no more bytes to unpack. + """ + return self._unpack(unpack_construct) + + def skip(self): + """Read and ignore one object, returning None + + Raises `OutOfData` when there are no more bytes to unpack. + """ + return self._unpack(unpack_skip) + + def read_array_header(self): + """assuming the next object is an array, return its size n, such that + the next n unpack() calls will iterate over its contents. + + Raises `OutOfData` when there are no more bytes to unpack. + """ + return self._unpack(read_array_header) + + def read_map_header(self): + """assuming the next object is a map, return its size n, such that the + next n * 2 unpack() calls will iterate over its key-value pairs. + + Raises `OutOfData` when there are no more bytes to unpack. + """ + return self._unpack(read_map_header) + + def tell(self): + return self.stream_offset + + def __iter__(self): + return self + + def __next__(self): + return self._unpack(unpack_construct, 1) + + # for debug. + #def _buf(self): + # return PyString_FromStringAndSize(self.buf, self.buf_tail) + + #def _off(self): + # return self.buf_head diff --git a/ddtrace/vendor/msgpack/_version.py b/ddtrace/vendor/msgpack/_version.py new file mode 100644 index 0000000000..926c5e7b02 --- /dev/null +++ b/ddtrace/vendor/msgpack/_version.py @@ -0,0 +1 @@ +version = (0, 6, 1) diff --git a/ddtrace/vendor/msgpack/buff_converter.h b/ddtrace/vendor/msgpack/buff_converter.h new file mode 100644 index 0000000000..bc7227ae9d --- /dev/null +++ b/ddtrace/vendor/msgpack/buff_converter.h @@ -0,0 +1,28 @@ +#include "Python.h" + +/* cython does not support this preprocessor check => write it in raw C */ +#if PY_MAJOR_VERSION == 2 +static PyObject * +buff_to_buff(char *buff, Py_ssize_t size) +{ + return PyBuffer_FromMemory(buff, size); +} + +#elif (PY_MAJOR_VERSION == 3) && (PY_MINOR_VERSION >= 3) +static PyObject * +buff_to_buff(char *buff, Py_ssize_t size) +{ + return PyMemoryView_FromMemory(buff, size, PyBUF_READ); +} +#else +static PyObject * +buff_to_buff(char *buff, Py_ssize_t size) +{ + Py_buffer pybuf; + if (PyBuffer_FillInfo(&pybuf, NULL, buff, size, 1, PyBUF_FULL_RO) == -1) { + return NULL; + } + + return PyMemoryView_FromBuffer(&pybuf); +} +#endif diff --git a/ddtrace/vendor/msgpack/exceptions.py b/ddtrace/vendor/msgpack/exceptions.py new file mode 100644 index 0000000000..d6d2615cfd --- /dev/null +++ b/ddtrace/vendor/msgpack/exceptions.py @@ -0,0 +1,48 @@ +class UnpackException(Exception): + """Base class for some exceptions raised while unpacking. + + NOTE: unpack may raise exception other than subclass of + UnpackException. If you want to catch all error, catch + Exception instead. + """ + + +class BufferFull(UnpackException): + pass + + +class OutOfData(UnpackException): + pass + + +class FormatError(ValueError, UnpackException): + """Invalid msgpack format""" + + +class StackError(ValueError, UnpackException): + """Too nested""" + + +# Deprecated. Use ValueError instead +UnpackValueError = ValueError + + +class ExtraData(UnpackValueError): + """ExtraData is raised when there is trailing data. + + This exception is raised while only one-shot (not streaming) + unpack. + """ + + def __init__(self, unpacked, extra): + self.unpacked = unpacked + self.extra = extra + + def __str__(self): + return "unpack(b) received extra data." + + +# Deprecated. Use Exception instead to catch all exception during packing. +PackException = Exception +PackValueError = ValueError +PackOverflowError = OverflowError diff --git a/ddtrace/vendor/msgpack/fallback.py b/ddtrace/vendor/msgpack/fallback.py new file mode 100644 index 0000000000..3836e830b8 --- /dev/null +++ b/ddtrace/vendor/msgpack/fallback.py @@ -0,0 +1,1027 @@ +"""Fallback pure Python implementation of msgpack""" + +import sys +import struct +import warnings + + +if sys.version_info[0] == 2: + PY2 = True + int_types = (int, long) + def dict_iteritems(d): + return d.iteritems() +else: + PY2 = False + int_types = int + unicode = str + xrange = range + def dict_iteritems(d): + return d.items() + +if sys.version_info < (3, 5): + # Ugly hack... + RecursionError = RuntimeError + + def _is_recursionerror(e): + return len(e.args) == 1 and isinstance(e.args[0], str) and \ + e.args[0].startswith('maximum recursion depth exceeded') +else: + def _is_recursionerror(e): + return True + +if hasattr(sys, 'pypy_version_info'): + # cStringIO is slow on PyPy, StringIO is faster. However: PyPy's own + # StringBuilder is fastest. + from __pypy__ import newlist_hint + try: + from __pypy__.builders import BytesBuilder as StringBuilder + except ImportError: + from __pypy__.builders import StringBuilder + USING_STRINGBUILDER = True + class StringIO(object): + def __init__(self, s=b''): + if s: + self.builder = StringBuilder(len(s)) + self.builder.append(s) + else: + self.builder = StringBuilder() + def write(self, s): + if isinstance(s, memoryview): + s = s.tobytes() + elif isinstance(s, bytearray): + s = bytes(s) + self.builder.append(s) + def getvalue(self): + return self.builder.build() +else: + USING_STRINGBUILDER = False + from io import BytesIO as StringIO + newlist_hint = lambda size: [] + + +from .exceptions import ( + BufferFull, + OutOfData, + ExtraData, + FormatError, + StackError, +) + +from . import ExtType + + +EX_SKIP = 0 +EX_CONSTRUCT = 1 +EX_READ_ARRAY_HEADER = 2 +EX_READ_MAP_HEADER = 3 + +TYPE_IMMEDIATE = 0 +TYPE_ARRAY = 1 +TYPE_MAP = 2 +TYPE_RAW = 3 +TYPE_BIN = 4 +TYPE_EXT = 5 + +DEFAULT_RECURSE_LIMIT = 511 + + +def _check_type_strict(obj, t, type=type, tuple=tuple): + if type(t) is tuple: + return type(obj) in t + else: + return type(obj) is t + + +def _get_data_from_buffer(obj): + try: + view = memoryview(obj) + except TypeError: + # try to use legacy buffer protocol if 2.7, otherwise re-raise + if PY2: + view = memoryview(buffer(obj)) + warnings.warn("using old buffer interface to unpack %s; " + "this leads to unpacking errors if slicing is used and " + "will be removed in a future version" % type(obj), + RuntimeWarning, stacklevel=3) + else: + raise + if view.itemsize != 1: + raise ValueError("cannot unpack from multi-byte object") + return view + + +def unpack(stream, **kwargs): + warnings.warn( + "Direct calling implementation's unpack() is deprecated, Use msgpack.unpack() or unpackb() instead.", + DeprecationWarning, stacklevel=2) + data = stream.read() + return unpackb(data, **kwargs) + + +def unpackb(packed, **kwargs): + """ + Unpack an object from `packed`. + + Raises ``ExtraData`` when *packed* contains extra bytes. + Raises ``ValueError`` when *packed* is incomplete. + Raises ``FormatError`` when *packed* is not valid msgpack. + Raises ``StackError`` when *packed* contains too nested. + Other exceptions can be raised during unpacking. + + See :class:`Unpacker` for options. + """ + unpacker = Unpacker(None, max_buffer_size=len(packed), **kwargs) + unpacker.feed(packed) + try: + ret = unpacker._unpack() + except OutOfData: + raise ValueError("Unpack failed: incomplete input") + except RecursionError as e: + if _is_recursionerror(e): + raise StackError + raise + if unpacker._got_extradata(): + raise ExtraData(ret, unpacker._get_extradata()) + return ret + + +if sys.version_info < (2, 7, 6): + def _unpack_from(f, b, o=0): + """Explicit typcast for legacy struct.unpack_from""" + return struct.unpack_from(f, bytes(b), o) +else: + _unpack_from = struct.unpack_from + + +class Unpacker(object): + """Streaming unpacker. + + arguments: + + :param file_like: + File-like object having `.read(n)` method. + If specified, unpacker reads serialized data from it and :meth:`feed()` is not usable. + + :param int read_size: + Used as `file_like.read(read_size)`. (default: `min(16*1024, max_buffer_size)`) + + :param bool use_list: + If true, unpack msgpack array to Python list. + Otherwise, unpack to Python tuple. (default: True) + + :param bool raw: + If true, unpack msgpack raw to Python bytes (default). + Otherwise, unpack to Python str (or unicode on Python 2) by decoding + with UTF-8 encoding (recommended). + Currently, the default is true, but it will be changed to false in + near future. So you must specify it explicitly for keeping backward + compatibility. + + *encoding* option which is deprecated overrides this option. + + :param bool strict_map_key: + If true, only str or bytes are accepted for map (dict) keys. + It's False by default for backward-compatibility. + But it will be True from msgpack 1.0. + + :param callable object_hook: + When specified, it should be callable. + Unpacker calls it with a dict argument after unpacking msgpack map. + (See also simplejson) + + :param callable object_pairs_hook: + When specified, it should be callable. + Unpacker calls it with a list of key-value pairs after unpacking msgpack map. + (See also simplejson) + + :param str encoding: + Encoding used for decoding msgpack raw. + If it is None (default), msgpack raw is deserialized to Python bytes. + + :param str unicode_errors: + (deprecated) Used for decoding msgpack raw with *encoding*. + (default: `'strict'`) + + :param int max_buffer_size: + Limits size of data waiting unpacked. 0 means system's INT_MAX (default). + Raises `BufferFull` exception when it is insufficient. + You should set this parameter when unpacking data from untrusted source. + + :param int max_str_len: + Deprecated, use *max_buffer_size* instead. + Limits max length of str. (default: max_buffer_size or 1024*1024) + + :param int max_bin_len: + Deprecated, use *max_buffer_size* instead. + Limits max length of bin. (default: max_buffer_size or 1024*1024) + + :param int max_array_len: + Limits max length of array. + (default: max_buffer_size or 128*1024) + + :param int max_map_len: + Limits max length of map. + (default: max_buffer_size//2 or 32*1024) + + :param int max_ext_len: + Deprecated, use *max_buffer_size* instead. + Limits max size of ext type. (default: max_buffer_size or 1024*1024) + + Example of streaming deserialize from file-like object:: + + unpacker = Unpacker(file_like, raw=False, max_buffer_size=10*1024*1024) + for o in unpacker: + process(o) + + Example of streaming deserialize from socket:: + + unpacker = Unpacker(raw=False, max_buffer_size=10*1024*1024) + while True: + buf = sock.recv(1024**2) + if not buf: + break + unpacker.feed(buf) + for o in unpacker: + process(o) + + Raises ``ExtraData`` when *packed* contains extra bytes. + Raises ``OutOfData`` when *packed* is incomplete. + Raises ``FormatError`` when *packed* is not valid msgpack. + Raises ``StackError`` when *packed* contains too nested. + Other exceptions can be raised during unpacking. + """ + + def __init__(self, file_like=None, read_size=0, use_list=True, raw=True, strict_map_key=False, + object_hook=None, object_pairs_hook=None, list_hook=None, + encoding=None, unicode_errors=None, max_buffer_size=0, + ext_hook=ExtType, + max_str_len=-1, + max_bin_len=-1, + max_array_len=-1, + max_map_len=-1, + max_ext_len=-1): + if encoding is not None: + warnings.warn( + "encoding is deprecated, Use raw=False instead.", + DeprecationWarning, stacklevel=2) + + if unicode_errors is None: + unicode_errors = 'strict' + + if file_like is None: + self._feeding = True + else: + if not callable(file_like.read): + raise TypeError("`file_like.read` must be callable") + self.file_like = file_like + self._feeding = False + + #: array of bytes fed. + self._buffer = bytearray() + #: Which position we currently reads + self._buff_i = 0 + + # When Unpacker is used as an iterable, between the calls to next(), + # the buffer is not "consumed" completely, for efficiency sake. + # Instead, it is done sloppily. To make sure we raise BufferFull at + # the correct moments, we have to keep track of how sloppy we were. + # Furthermore, when the buffer is incomplete (that is: in the case + # we raise an OutOfData) we need to rollback the buffer to the correct + # state, which _buf_checkpoint records. + self._buf_checkpoint = 0 + + if max_str_len == -1: + max_str_len = max_buffer_size or 1024*1024 + if max_bin_len == -1: + max_bin_len = max_buffer_size or 1024*1024 + if max_array_len == -1: + max_array_len = max_buffer_size or 128*1024 + if max_map_len == -1: + max_map_len = max_buffer_size//2 or 32*1024 + if max_ext_len == -1: + max_ext_len = max_buffer_size or 1024*1024 + + self._max_buffer_size = max_buffer_size or 2**31-1 + if read_size > self._max_buffer_size: + raise ValueError("read_size must be smaller than max_buffer_size") + self._read_size = read_size or min(self._max_buffer_size, 16*1024) + self._raw = bool(raw) + self._strict_map_key = bool(strict_map_key) + self._encoding = encoding + self._unicode_errors = unicode_errors + self._use_list = use_list + self._list_hook = list_hook + self._object_hook = object_hook + self._object_pairs_hook = object_pairs_hook + self._ext_hook = ext_hook + self._max_str_len = max_str_len + self._max_bin_len = max_bin_len + self._max_array_len = max_array_len + self._max_map_len = max_map_len + self._max_ext_len = max_ext_len + self._stream_offset = 0 + + if list_hook is not None and not callable(list_hook): + raise TypeError('`list_hook` is not callable') + if object_hook is not None and not callable(object_hook): + raise TypeError('`object_hook` is not callable') + if object_pairs_hook is not None and not callable(object_pairs_hook): + raise TypeError('`object_pairs_hook` is not callable') + if object_hook is not None and object_pairs_hook is not None: + raise TypeError("object_pairs_hook and object_hook are mutually " + "exclusive") + if not callable(ext_hook): + raise TypeError("`ext_hook` is not callable") + + def feed(self, next_bytes): + assert self._feeding + view = _get_data_from_buffer(next_bytes) + if (len(self._buffer) - self._buff_i + len(view) > self._max_buffer_size): + raise BufferFull + + # Strip buffer before checkpoint before reading file. + if self._buf_checkpoint > 0: + del self._buffer[:self._buf_checkpoint] + self._buff_i -= self._buf_checkpoint + self._buf_checkpoint = 0 + + # Use extend here: INPLACE_ADD += doesn't reliably typecast memoryview in jython + self._buffer.extend(view) + + def _consume(self): + """ Gets rid of the used parts of the buffer. """ + self._stream_offset += self._buff_i - self._buf_checkpoint + self._buf_checkpoint = self._buff_i + + def _got_extradata(self): + return self._buff_i < len(self._buffer) + + def _get_extradata(self): + return self._buffer[self._buff_i:] + + def read_bytes(self, n): + return self._read(n) + + def _read(self, n): + # (int) -> bytearray + self._reserve(n) + i = self._buff_i + self._buff_i = i+n + return self._buffer[i:i+n] + + def _reserve(self, n): + remain_bytes = len(self._buffer) - self._buff_i - n + + # Fast path: buffer has n bytes already + if remain_bytes >= 0: + return + + if self._feeding: + self._buff_i = self._buf_checkpoint + raise OutOfData + + # Strip buffer before checkpoint before reading file. + if self._buf_checkpoint > 0: + del self._buffer[:self._buf_checkpoint] + self._buff_i -= self._buf_checkpoint + self._buf_checkpoint = 0 + + # Read from file + remain_bytes = -remain_bytes + while remain_bytes > 0: + to_read_bytes = max(self._read_size, remain_bytes) + read_data = self.file_like.read(to_read_bytes) + if not read_data: + break + assert isinstance(read_data, bytes) + self._buffer += read_data + remain_bytes -= len(read_data) + + if len(self._buffer) < n + self._buff_i: + self._buff_i = 0 # rollback + raise OutOfData + + def _read_header(self, execute=EX_CONSTRUCT): + typ = TYPE_IMMEDIATE + n = 0 + obj = None + self._reserve(1) + b = self._buffer[self._buff_i] + self._buff_i += 1 + if b & 0b10000000 == 0: + obj = b + elif b & 0b11100000 == 0b11100000: + obj = -1 - (b ^ 0xff) + elif b & 0b11100000 == 0b10100000: + n = b & 0b00011111 + typ = TYPE_RAW + if n > self._max_str_len: + raise ValueError("%s exceeds max_str_len(%s)", n, self._max_str_len) + obj = self._read(n) + elif b & 0b11110000 == 0b10010000: + n = b & 0b00001111 + typ = TYPE_ARRAY + if n > self._max_array_len: + raise ValueError("%s exceeds max_array_len(%s)", n, self._max_array_len) + elif b & 0b11110000 == 0b10000000: + n = b & 0b00001111 + typ = TYPE_MAP + if n > self._max_map_len: + raise ValueError("%s exceeds max_map_len(%s)", n, self._max_map_len) + elif b == 0xc0: + obj = None + elif b == 0xc2: + obj = False + elif b == 0xc3: + obj = True + elif b == 0xc4: + typ = TYPE_BIN + self._reserve(1) + n = self._buffer[self._buff_i] + self._buff_i += 1 + if n > self._max_bin_len: + raise ValueError("%s exceeds max_bin_len(%s)" % (n, self._max_bin_len)) + obj = self._read(n) + elif b == 0xc5: + typ = TYPE_BIN + self._reserve(2) + n = _unpack_from(">H", self._buffer, self._buff_i)[0] + self._buff_i += 2 + if n > self._max_bin_len: + raise ValueError("%s exceeds max_bin_len(%s)" % (n, self._max_bin_len)) + obj = self._read(n) + elif b == 0xc6: + typ = TYPE_BIN + self._reserve(4) + n = _unpack_from(">I", self._buffer, self._buff_i)[0] + self._buff_i += 4 + if n > self._max_bin_len: + raise ValueError("%s exceeds max_bin_len(%s)" % (n, self._max_bin_len)) + obj = self._read(n) + elif b == 0xc7: # ext 8 + typ = TYPE_EXT + self._reserve(2) + L, n = _unpack_from('Bb', self._buffer, self._buff_i) + self._buff_i += 2 + if L > self._max_ext_len: + raise ValueError("%s exceeds max_ext_len(%s)" % (L, self._max_ext_len)) + obj = self._read(L) + elif b == 0xc8: # ext 16 + typ = TYPE_EXT + self._reserve(3) + L, n = _unpack_from('>Hb', self._buffer, self._buff_i) + self._buff_i += 3 + if L > self._max_ext_len: + raise ValueError("%s exceeds max_ext_len(%s)" % (L, self._max_ext_len)) + obj = self._read(L) + elif b == 0xc9: # ext 32 + typ = TYPE_EXT + self._reserve(5) + L, n = _unpack_from('>Ib', self._buffer, self._buff_i) + self._buff_i += 5 + if L > self._max_ext_len: + raise ValueError("%s exceeds max_ext_len(%s)" % (L, self._max_ext_len)) + obj = self._read(L) + elif b == 0xca: + self._reserve(4) + obj = _unpack_from(">f", self._buffer, self._buff_i)[0] + self._buff_i += 4 + elif b == 0xcb: + self._reserve(8) + obj = _unpack_from(">d", self._buffer, self._buff_i)[0] + self._buff_i += 8 + elif b == 0xcc: + self._reserve(1) + obj = self._buffer[self._buff_i] + self._buff_i += 1 + elif b == 0xcd: + self._reserve(2) + obj = _unpack_from(">H", self._buffer, self._buff_i)[0] + self._buff_i += 2 + elif b == 0xce: + self._reserve(4) + obj = _unpack_from(">I", self._buffer, self._buff_i)[0] + self._buff_i += 4 + elif b == 0xcf: + self._reserve(8) + obj = _unpack_from(">Q", self._buffer, self._buff_i)[0] + self._buff_i += 8 + elif b == 0xd0: + self._reserve(1) + obj = _unpack_from("b", self._buffer, self._buff_i)[0] + self._buff_i += 1 + elif b == 0xd1: + self._reserve(2) + obj = _unpack_from(">h", self._buffer, self._buff_i)[0] + self._buff_i += 2 + elif b == 0xd2: + self._reserve(4) + obj = _unpack_from(">i", self._buffer, self._buff_i)[0] + self._buff_i += 4 + elif b == 0xd3: + self._reserve(8) + obj = _unpack_from(">q", self._buffer, self._buff_i)[0] + self._buff_i += 8 + elif b == 0xd4: # fixext 1 + typ = TYPE_EXT + if self._max_ext_len < 1: + raise ValueError("%s exceeds max_ext_len(%s)" % (1, self._max_ext_len)) + self._reserve(2) + n, obj = _unpack_from("b1s", self._buffer, self._buff_i) + self._buff_i += 2 + elif b == 0xd5: # fixext 2 + typ = TYPE_EXT + if self._max_ext_len < 2: + raise ValueError("%s exceeds max_ext_len(%s)" % (2, self._max_ext_len)) + self._reserve(3) + n, obj = _unpack_from("b2s", self._buffer, self._buff_i) + self._buff_i += 3 + elif b == 0xd6: # fixext 4 + typ = TYPE_EXT + if self._max_ext_len < 4: + raise ValueError("%s exceeds max_ext_len(%s)" % (4, self._max_ext_len)) + self._reserve(5) + n, obj = _unpack_from("b4s", self._buffer, self._buff_i) + self._buff_i += 5 + elif b == 0xd7: # fixext 8 + typ = TYPE_EXT + if self._max_ext_len < 8: + raise ValueError("%s exceeds max_ext_len(%s)" % (8, self._max_ext_len)) + self._reserve(9) + n, obj = _unpack_from("b8s", self._buffer, self._buff_i) + self._buff_i += 9 + elif b == 0xd8: # fixext 16 + typ = TYPE_EXT + if self._max_ext_len < 16: + raise ValueError("%s exceeds max_ext_len(%s)" % (16, self._max_ext_len)) + self._reserve(17) + n, obj = _unpack_from("b16s", self._buffer, self._buff_i) + self._buff_i += 17 + elif b == 0xd9: + typ = TYPE_RAW + self._reserve(1) + n = self._buffer[self._buff_i] + self._buff_i += 1 + if n > self._max_str_len: + raise ValueError("%s exceeds max_str_len(%s)", n, self._max_str_len) + obj = self._read(n) + elif b == 0xda: + typ = TYPE_RAW + self._reserve(2) + n, = _unpack_from(">H", self._buffer, self._buff_i) + self._buff_i += 2 + if n > self._max_str_len: + raise ValueError("%s exceeds max_str_len(%s)", n, self._max_str_len) + obj = self._read(n) + elif b == 0xdb: + typ = TYPE_RAW + self._reserve(4) + n, = _unpack_from(">I", self._buffer, self._buff_i) + self._buff_i += 4 + if n > self._max_str_len: + raise ValueError("%s exceeds max_str_len(%s)", n, self._max_str_len) + obj = self._read(n) + elif b == 0xdc: + typ = TYPE_ARRAY + self._reserve(2) + n, = _unpack_from(">H", self._buffer, self._buff_i) + self._buff_i += 2 + if n > self._max_array_len: + raise ValueError("%s exceeds max_array_len(%s)", n, self._max_array_len) + elif b == 0xdd: + typ = TYPE_ARRAY + self._reserve(4) + n, = _unpack_from(">I", self._buffer, self._buff_i) + self._buff_i += 4 + if n > self._max_array_len: + raise ValueError("%s exceeds max_array_len(%s)", n, self._max_array_len) + elif b == 0xde: + self._reserve(2) + n, = _unpack_from(">H", self._buffer, self._buff_i) + self._buff_i += 2 + if n > self._max_map_len: + raise ValueError("%s exceeds max_map_len(%s)", n, self._max_map_len) + typ = TYPE_MAP + elif b == 0xdf: + self._reserve(4) + n, = _unpack_from(">I", self._buffer, self._buff_i) + self._buff_i += 4 + if n > self._max_map_len: + raise ValueError("%s exceeds max_map_len(%s)", n, self._max_map_len) + typ = TYPE_MAP + else: + raise FormatError("Unknown header: 0x%x" % b) + return typ, n, obj + + def _unpack(self, execute=EX_CONSTRUCT): + typ, n, obj = self._read_header(execute) + + if execute == EX_READ_ARRAY_HEADER: + if typ != TYPE_ARRAY: + raise ValueError("Expected array") + return n + if execute == EX_READ_MAP_HEADER: + if typ != TYPE_MAP: + raise ValueError("Expected map") + return n + # TODO should we eliminate the recursion? + if typ == TYPE_ARRAY: + if execute == EX_SKIP: + for i in xrange(n): + # TODO check whether we need to call `list_hook` + self._unpack(EX_SKIP) + return + ret = newlist_hint(n) + for i in xrange(n): + ret.append(self._unpack(EX_CONSTRUCT)) + if self._list_hook is not None: + ret = self._list_hook(ret) + # TODO is the interaction between `list_hook` and `use_list` ok? + return ret if self._use_list else tuple(ret) + if typ == TYPE_MAP: + if execute == EX_SKIP: + for i in xrange(n): + # TODO check whether we need to call hooks + self._unpack(EX_SKIP) + self._unpack(EX_SKIP) + return + if self._object_pairs_hook is not None: + ret = self._object_pairs_hook( + (self._unpack(EX_CONSTRUCT), + self._unpack(EX_CONSTRUCT)) + for _ in xrange(n)) + else: + ret = {} + for _ in xrange(n): + key = self._unpack(EX_CONSTRUCT) + if self._strict_map_key and type(key) not in (unicode, bytes): + raise ValueError("%s is not allowed for map key" % str(type(key))) + ret[key] = self._unpack(EX_CONSTRUCT) + if self._object_hook is not None: + ret = self._object_hook(ret) + return ret + if execute == EX_SKIP: + return + if typ == TYPE_RAW: + if self._encoding is not None: + obj = obj.decode(self._encoding, self._unicode_errors) + elif self._raw: + obj = bytes(obj) + else: + obj = obj.decode('utf_8') + return obj + if typ == TYPE_EXT: + return self._ext_hook(n, bytes(obj)) + if typ == TYPE_BIN: + return bytes(obj) + assert typ == TYPE_IMMEDIATE + return obj + + def __iter__(self): + return self + + def __next__(self): + try: + ret = self._unpack(EX_CONSTRUCT) + self._consume() + return ret + except OutOfData: + self._consume() + raise StopIteration + except RecursionError: + raise StackError + + next = __next__ + + def skip(self): + self._unpack(EX_SKIP) + self._consume() + + def unpack(self): + try: + ret = self._unpack(EX_CONSTRUCT) + except RecursionError: + raise StackError + self._consume() + return ret + + def read_array_header(self): + ret = self._unpack(EX_READ_ARRAY_HEADER) + self._consume() + return ret + + def read_map_header(self): + ret = self._unpack(EX_READ_MAP_HEADER) + self._consume() + return ret + + def tell(self): + return self._stream_offset + + +class Packer(object): + """ + MessagePack Packer + + usage: + + packer = Packer() + astream.write(packer.pack(a)) + astream.write(packer.pack(b)) + + Packer's constructor has some keyword arguments: + + :param callable default: + Convert user type to builtin type that Packer supports. + See also simplejson's document. + + :param bool use_single_float: + Use single precision float type for float. (default: False) + + :param bool autoreset: + Reset buffer after each pack and return its content as `bytes`. (default: True). + If set this to false, use `bytes()` to get content and `.reset()` to clear buffer. + + :param bool use_bin_type: + Use bin type introduced in msgpack spec 2.0 for bytes. + It also enables str8 type for unicode. + + :param bool strict_types: + If set to true, types will be checked to be exact. Derived classes + from serializeable types will not be serialized and will be + treated as unsupported type and forwarded to default. + Additionally tuples will not be serialized as lists. + This is useful when trying to implement accurate serialization + for python types. + + :param str encoding: + (deprecated) Convert unicode to bytes with this encoding. (default: 'utf-8') + + :param str unicode_errors: + Error handler for encoding unicode. (default: 'strict') + """ + def __init__(self, default=None, encoding=None, unicode_errors=None, + use_single_float=False, autoreset=True, use_bin_type=False, + strict_types=False): + if encoding is None: + encoding = 'utf_8' + else: + warnings.warn( + "encoding is deprecated, Use raw=False instead.", + DeprecationWarning, stacklevel=2) + + if unicode_errors is None: + unicode_errors = 'strict' + + self._strict_types = strict_types + self._use_float = use_single_float + self._autoreset = autoreset + self._use_bin_type = use_bin_type + self._encoding = encoding + self._unicode_errors = unicode_errors + self._buffer = StringIO() + if default is not None: + if not callable(default): + raise TypeError("default must be callable") + self._default = default + + def _pack(self, obj, nest_limit=DEFAULT_RECURSE_LIMIT, + check=isinstance, check_type_strict=_check_type_strict): + default_used = False + if self._strict_types: + check = check_type_strict + list_types = list + else: + list_types = (list, tuple) + while True: + if nest_limit < 0: + raise ValueError("recursion limit exceeded") + if obj is None: + return self._buffer.write(b"\xc0") + if check(obj, bool): + if obj: + return self._buffer.write(b"\xc3") + return self._buffer.write(b"\xc2") + if check(obj, int_types): + if 0 <= obj < 0x80: + return self._buffer.write(struct.pack("B", obj)) + if -0x20 <= obj < 0: + return self._buffer.write(struct.pack("b", obj)) + if 0x80 <= obj <= 0xff: + return self._buffer.write(struct.pack("BB", 0xcc, obj)) + if -0x80 <= obj < 0: + return self._buffer.write(struct.pack(">Bb", 0xd0, obj)) + if 0xff < obj <= 0xffff: + return self._buffer.write(struct.pack(">BH", 0xcd, obj)) + if -0x8000 <= obj < -0x80: + return self._buffer.write(struct.pack(">Bh", 0xd1, obj)) + if 0xffff < obj <= 0xffffffff: + return self._buffer.write(struct.pack(">BI", 0xce, obj)) + if -0x80000000 <= obj < -0x8000: + return self._buffer.write(struct.pack(">Bi", 0xd2, obj)) + if 0xffffffff < obj <= 0xffffffffffffffff: + return self._buffer.write(struct.pack(">BQ", 0xcf, obj)) + if -0x8000000000000000 <= obj < -0x80000000: + return self._buffer.write(struct.pack(">Bq", 0xd3, obj)) + if not default_used and self._default is not None: + obj = self._default(obj) + default_used = True + continue + raise OverflowError("Integer value out of range") + if check(obj, (bytes, bytearray)): + n = len(obj) + if n >= 2**32: + raise ValueError("%s is too large" % type(obj).__name__) + self._pack_bin_header(n) + return self._buffer.write(obj) + if check(obj, unicode): + if self._encoding is None: + raise TypeError( + "Can't encode unicode string: " + "no encoding is specified") + obj = obj.encode(self._encoding, self._unicode_errors) + n = len(obj) + if n >= 2**32: + raise ValueError("String is too large") + self._pack_raw_header(n) + return self._buffer.write(obj) + if check(obj, memoryview): + n = len(obj) * obj.itemsize + if n >= 2**32: + raise ValueError("Memoryview is too large") + self._pack_bin_header(n) + return self._buffer.write(obj) + if check(obj, float): + if self._use_float: + return self._buffer.write(struct.pack(">Bf", 0xca, obj)) + return self._buffer.write(struct.pack(">Bd", 0xcb, obj)) + if check(obj, ExtType): + code = obj.code + data = obj.data + assert isinstance(code, int) + assert isinstance(data, bytes) + L = len(data) + if L == 1: + self._buffer.write(b'\xd4') + elif L == 2: + self._buffer.write(b'\xd5') + elif L == 4: + self._buffer.write(b'\xd6') + elif L == 8: + self._buffer.write(b'\xd7') + elif L == 16: + self._buffer.write(b'\xd8') + elif L <= 0xff: + self._buffer.write(struct.pack(">BB", 0xc7, L)) + elif L <= 0xffff: + self._buffer.write(struct.pack(">BH", 0xc8, L)) + else: + self._buffer.write(struct.pack(">BI", 0xc9, L)) + self._buffer.write(struct.pack("b", code)) + self._buffer.write(data) + return + if check(obj, list_types): + n = len(obj) + self._pack_array_header(n) + for i in xrange(n): + self._pack(obj[i], nest_limit - 1) + return + if check(obj, dict): + return self._pack_map_pairs(len(obj), dict_iteritems(obj), + nest_limit - 1) + if not default_used and self._default is not None: + obj = self._default(obj) + default_used = 1 + continue + raise TypeError("Cannot serialize %r" % (obj, )) + + def pack(self, obj): + try: + self._pack(obj) + except: + self._buffer = StringIO() # force reset + raise + if self._autoreset: + ret = self._buffer.getvalue() + self._buffer = StringIO() + return ret + + def pack_map_pairs(self, pairs): + self._pack_map_pairs(len(pairs), pairs) + if self._autoreset: + ret = self._buffer.getvalue() + self._buffer = StringIO() + return ret + + def pack_array_header(self, n): + if n >= 2**32: + raise ValueError + self._pack_array_header(n) + if self._autoreset: + ret = self._buffer.getvalue() + self._buffer = StringIO() + return ret + + def pack_map_header(self, n): + if n >= 2**32: + raise ValueError + self._pack_map_header(n) + if self._autoreset: + ret = self._buffer.getvalue() + self._buffer = StringIO() + return ret + + def pack_ext_type(self, typecode, data): + if not isinstance(typecode, int): + raise TypeError("typecode must have int type.") + if not 0 <= typecode <= 127: + raise ValueError("typecode should be 0-127") + if not isinstance(data, bytes): + raise TypeError("data must have bytes type") + L = len(data) + if L > 0xffffffff: + raise ValueError("Too large data") + if L == 1: + self._buffer.write(b'\xd4') + elif L == 2: + self._buffer.write(b'\xd5') + elif L == 4: + self._buffer.write(b'\xd6') + elif L == 8: + self._buffer.write(b'\xd7') + elif L == 16: + self._buffer.write(b'\xd8') + elif L <= 0xff: + self._buffer.write(b'\xc7' + struct.pack('B', L)) + elif L <= 0xffff: + self._buffer.write(b'\xc8' + struct.pack('>H', L)) + else: + self._buffer.write(b'\xc9' + struct.pack('>I', L)) + self._buffer.write(struct.pack('B', typecode)) + self._buffer.write(data) + + def _pack_array_header(self, n): + if n <= 0x0f: + return self._buffer.write(struct.pack('B', 0x90 + n)) + if n <= 0xffff: + return self._buffer.write(struct.pack(">BH", 0xdc, n)) + if n <= 0xffffffff: + return self._buffer.write(struct.pack(">BI", 0xdd, n)) + raise ValueError("Array is too large") + + def _pack_map_header(self, n): + if n <= 0x0f: + return self._buffer.write(struct.pack('B', 0x80 + n)) + if n <= 0xffff: + return self._buffer.write(struct.pack(">BH", 0xde, n)) + if n <= 0xffffffff: + return self._buffer.write(struct.pack(">BI", 0xdf, n)) + raise ValueError("Dict is too large") + + def _pack_map_pairs(self, n, pairs, nest_limit=DEFAULT_RECURSE_LIMIT): + self._pack_map_header(n) + for (k, v) in pairs: + self._pack(k, nest_limit - 1) + self._pack(v, nest_limit - 1) + + def _pack_raw_header(self, n): + if n <= 0x1f: + self._buffer.write(struct.pack('B', 0xa0 + n)) + elif self._use_bin_type and n <= 0xff: + self._buffer.write(struct.pack('>BB', 0xd9, n)) + elif n <= 0xffff: + self._buffer.write(struct.pack(">BH", 0xda, n)) + elif n <= 0xffffffff: + self._buffer.write(struct.pack(">BI", 0xdb, n)) + else: + raise ValueError('Raw is too large') + + def _pack_bin_header(self, n): + if not self._use_bin_type: + return self._pack_raw_header(n) + elif n <= 0xff: + return self._buffer.write(struct.pack('>BB', 0xc4, n)) + elif n <= 0xffff: + return self._buffer.write(struct.pack(">BH", 0xc5, n)) + elif n <= 0xffffffff: + return self._buffer.write(struct.pack(">BI", 0xc6, n)) + else: + raise ValueError('Bin is too large') + + def bytes(self): + """Return internal buffer contents as bytes object""" + return self._buffer.getvalue() + + def reset(self): + """Reset internal buffer. + + This method is usaful only when autoreset=False. + """ + self._buffer = StringIO() + + def getbuffer(self): + """Return view of internal buffer.""" + if USING_STRINGBUILDER or PY2: + return memoryview(self.bytes()) + else: + return self._buffer.getbuffer() diff --git a/ddtrace/vendor/msgpack/pack.h b/ddtrace/vendor/msgpack/pack.h new file mode 100644 index 0000000000..4f3ce1d99e --- /dev/null +++ b/ddtrace/vendor/msgpack/pack.h @@ -0,0 +1,119 @@ +/* + * MessagePack for Python packing routine + * + * Copyright (C) 2009 Naoki INADA + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include +#include +#include "sysdep.h" +#include +#include + +#ifdef __cplusplus +extern "C" { +#endif + +#ifdef _MSC_VER +#define inline __inline +#endif + +typedef struct msgpack_packer { + char *buf; + size_t length; + size_t buf_size; + bool use_bin_type; +} msgpack_packer; + +typedef struct Packer Packer; + +static inline int msgpack_pack_write(msgpack_packer* pk, const char *data, size_t l) +{ + char* buf = pk->buf; + size_t bs = pk->buf_size; + size_t len = pk->length; + + if (len + l > bs) { + bs = (len + l) * 2; + buf = (char*)PyMem_Realloc(buf, bs); + if (!buf) { + PyErr_NoMemory(); + return -1; + } + } + memcpy(buf + len, data, l); + len += l; + + pk->buf = buf; + pk->buf_size = bs; + pk->length = len; + return 0; +} + +#define msgpack_pack_append_buffer(user, buf, len) \ + return msgpack_pack_write(user, (const char*)buf, len) + +#include "pack_template.h" + +// return -2 when o is too long +static inline int +msgpack_pack_unicode(msgpack_packer *pk, PyObject *o, long long limit) +{ +#if PY_MAJOR_VERSION >= 3 + assert(PyUnicode_Check(o)); + + Py_ssize_t len; + const char* buf = PyUnicode_AsUTF8AndSize(o, &len); + if (buf == NULL) + return -1; + + if (len > limit) { + return -2; + } + + int ret = msgpack_pack_raw(pk, len); + if (ret) return ret; + + return msgpack_pack_raw_body(pk, buf, len); +#else + PyObject *bytes; + Py_ssize_t len; + int ret; + + // py2 + bytes = PyUnicode_AsUTF8String(o); + if (bytes == NULL) + return -1; + + len = PyString_GET_SIZE(bytes); + if (len > limit) { + Py_DECREF(bytes); + return -2; + } + + ret = msgpack_pack_raw(pk, len); + if (ret) { + Py_DECREF(bytes); + return -1; + } + ret = msgpack_pack_raw_body(pk, PyString_AS_STRING(bytes), len); + Py_DECREF(bytes); + return ret; +#endif +} + +#ifdef __cplusplus +} +#endif diff --git a/ddtrace/vendor/msgpack/pack_template.h b/ddtrace/vendor/msgpack/pack_template.h new file mode 100644 index 0000000000..69982f4d29 --- /dev/null +++ b/ddtrace/vendor/msgpack/pack_template.h @@ -0,0 +1,778 @@ +/* + * MessagePack packing routine template + * + * Copyright (C) 2008-2010 FURUHASHI Sadayuki + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#if defined(__LITTLE_ENDIAN__) +#define TAKE8_8(d) ((uint8_t*)&d)[0] +#define TAKE8_16(d) ((uint8_t*)&d)[0] +#define TAKE8_32(d) ((uint8_t*)&d)[0] +#define TAKE8_64(d) ((uint8_t*)&d)[0] +#elif defined(__BIG_ENDIAN__) +#define TAKE8_8(d) ((uint8_t*)&d)[0] +#define TAKE8_16(d) ((uint8_t*)&d)[1] +#define TAKE8_32(d) ((uint8_t*)&d)[3] +#define TAKE8_64(d) ((uint8_t*)&d)[7] +#endif + +#ifndef msgpack_pack_append_buffer +#error msgpack_pack_append_buffer callback is not defined +#endif + + +/* + * Integer + */ + +#define msgpack_pack_real_uint8(x, d) \ +do { \ + if(d < (1<<7)) { \ + /* fixnum */ \ + msgpack_pack_append_buffer(x, &TAKE8_8(d), 1); \ + } else { \ + /* unsigned 8 */ \ + unsigned char buf[2] = {0xcc, TAKE8_8(d)}; \ + msgpack_pack_append_buffer(x, buf, 2); \ + } \ +} while(0) + +#define msgpack_pack_real_uint16(x, d) \ +do { \ + if(d < (1<<7)) { \ + /* fixnum */ \ + msgpack_pack_append_buffer(x, &TAKE8_16(d), 1); \ + } else if(d < (1<<8)) { \ + /* unsigned 8 */ \ + unsigned char buf[2] = {0xcc, TAKE8_16(d)}; \ + msgpack_pack_append_buffer(x, buf, 2); \ + } else { \ + /* unsigned 16 */ \ + unsigned char buf[3]; \ + buf[0] = 0xcd; _msgpack_store16(&buf[1], (uint16_t)d); \ + msgpack_pack_append_buffer(x, buf, 3); \ + } \ +} while(0) + +#define msgpack_pack_real_uint32(x, d) \ +do { \ + if(d < (1<<8)) { \ + if(d < (1<<7)) { \ + /* fixnum */ \ + msgpack_pack_append_buffer(x, &TAKE8_32(d), 1); \ + } else { \ + /* unsigned 8 */ \ + unsigned char buf[2] = {0xcc, TAKE8_32(d)}; \ + msgpack_pack_append_buffer(x, buf, 2); \ + } \ + } else { \ + if(d < (1<<16)) { \ + /* unsigned 16 */ \ + unsigned char buf[3]; \ + buf[0] = 0xcd; _msgpack_store16(&buf[1], (uint16_t)d); \ + msgpack_pack_append_buffer(x, buf, 3); \ + } else { \ + /* unsigned 32 */ \ + unsigned char buf[5]; \ + buf[0] = 0xce; _msgpack_store32(&buf[1], (uint32_t)d); \ + msgpack_pack_append_buffer(x, buf, 5); \ + } \ + } \ +} while(0) + +#define msgpack_pack_real_uint64(x, d) \ +do { \ + if(d < (1ULL<<8)) { \ + if(d < (1ULL<<7)) { \ + /* fixnum */ \ + msgpack_pack_append_buffer(x, &TAKE8_64(d), 1); \ + } else { \ + /* unsigned 8 */ \ + unsigned char buf[2] = {0xcc, TAKE8_64(d)}; \ + msgpack_pack_append_buffer(x, buf, 2); \ + } \ + } else { \ + if(d < (1ULL<<16)) { \ + /* unsigned 16 */ \ + unsigned char buf[3]; \ + buf[0] = 0xcd; _msgpack_store16(&buf[1], (uint16_t)d); \ + msgpack_pack_append_buffer(x, buf, 3); \ + } else if(d < (1ULL<<32)) { \ + /* unsigned 32 */ \ + unsigned char buf[5]; \ + buf[0] = 0xce; _msgpack_store32(&buf[1], (uint32_t)d); \ + msgpack_pack_append_buffer(x, buf, 5); \ + } else { \ + /* unsigned 64 */ \ + unsigned char buf[9]; \ + buf[0] = 0xcf; _msgpack_store64(&buf[1], d); \ + msgpack_pack_append_buffer(x, buf, 9); \ + } \ + } \ +} while(0) + +#define msgpack_pack_real_int8(x, d) \ +do { \ + if(d < -(1<<5)) { \ + /* signed 8 */ \ + unsigned char buf[2] = {0xd0, TAKE8_8(d)}; \ + msgpack_pack_append_buffer(x, buf, 2); \ + } else { \ + /* fixnum */ \ + msgpack_pack_append_buffer(x, &TAKE8_8(d), 1); \ + } \ +} while(0) + +#define msgpack_pack_real_int16(x, d) \ +do { \ + if(d < -(1<<5)) { \ + if(d < -(1<<7)) { \ + /* signed 16 */ \ + unsigned char buf[3]; \ + buf[0] = 0xd1; _msgpack_store16(&buf[1], (int16_t)d); \ + msgpack_pack_append_buffer(x, buf, 3); \ + } else { \ + /* signed 8 */ \ + unsigned char buf[2] = {0xd0, TAKE8_16(d)}; \ + msgpack_pack_append_buffer(x, buf, 2); \ + } \ + } else if(d < (1<<7)) { \ + /* fixnum */ \ + msgpack_pack_append_buffer(x, &TAKE8_16(d), 1); \ + } else { \ + if(d < (1<<8)) { \ + /* unsigned 8 */ \ + unsigned char buf[2] = {0xcc, TAKE8_16(d)}; \ + msgpack_pack_append_buffer(x, buf, 2); \ + } else { \ + /* unsigned 16 */ \ + unsigned char buf[3]; \ + buf[0] = 0xcd; _msgpack_store16(&buf[1], (uint16_t)d); \ + msgpack_pack_append_buffer(x, buf, 3); \ + } \ + } \ +} while(0) + +#define msgpack_pack_real_int32(x, d) \ +do { \ + if(d < -(1<<5)) { \ + if(d < -(1<<15)) { \ + /* signed 32 */ \ + unsigned char buf[5]; \ + buf[0] = 0xd2; _msgpack_store32(&buf[1], (int32_t)d); \ + msgpack_pack_append_buffer(x, buf, 5); \ + } else if(d < -(1<<7)) { \ + /* signed 16 */ \ + unsigned char buf[3]; \ + buf[0] = 0xd1; _msgpack_store16(&buf[1], (int16_t)d); \ + msgpack_pack_append_buffer(x, buf, 3); \ + } else { \ + /* signed 8 */ \ + unsigned char buf[2] = {0xd0, TAKE8_32(d)}; \ + msgpack_pack_append_buffer(x, buf, 2); \ + } \ + } else if(d < (1<<7)) { \ + /* fixnum */ \ + msgpack_pack_append_buffer(x, &TAKE8_32(d), 1); \ + } else { \ + if(d < (1<<8)) { \ + /* unsigned 8 */ \ + unsigned char buf[2] = {0xcc, TAKE8_32(d)}; \ + msgpack_pack_append_buffer(x, buf, 2); \ + } else if(d < (1<<16)) { \ + /* unsigned 16 */ \ + unsigned char buf[3]; \ + buf[0] = 0xcd; _msgpack_store16(&buf[1], (uint16_t)d); \ + msgpack_pack_append_buffer(x, buf, 3); \ + } else { \ + /* unsigned 32 */ \ + unsigned char buf[5]; \ + buf[0] = 0xce; _msgpack_store32(&buf[1], (uint32_t)d); \ + msgpack_pack_append_buffer(x, buf, 5); \ + } \ + } \ +} while(0) + +#define msgpack_pack_real_int64(x, d) \ +do { \ + if(d < -(1LL<<5)) { \ + if(d < -(1LL<<15)) { \ + if(d < -(1LL<<31)) { \ + /* signed 64 */ \ + unsigned char buf[9]; \ + buf[0] = 0xd3; _msgpack_store64(&buf[1], d); \ + msgpack_pack_append_buffer(x, buf, 9); \ + } else { \ + /* signed 32 */ \ + unsigned char buf[5]; \ + buf[0] = 0xd2; _msgpack_store32(&buf[1], (int32_t)d); \ + msgpack_pack_append_buffer(x, buf, 5); \ + } \ + } else { \ + if(d < -(1<<7)) { \ + /* signed 16 */ \ + unsigned char buf[3]; \ + buf[0] = 0xd1; _msgpack_store16(&buf[1], (int16_t)d); \ + msgpack_pack_append_buffer(x, buf, 3); \ + } else { \ + /* signed 8 */ \ + unsigned char buf[2] = {0xd0, TAKE8_64(d)}; \ + msgpack_pack_append_buffer(x, buf, 2); \ + } \ + } \ + } else if(d < (1<<7)) { \ + /* fixnum */ \ + msgpack_pack_append_buffer(x, &TAKE8_64(d), 1); \ + } else { \ + if(d < (1LL<<16)) { \ + if(d < (1<<8)) { \ + /* unsigned 8 */ \ + unsigned char buf[2] = {0xcc, TAKE8_64(d)}; \ + msgpack_pack_append_buffer(x, buf, 2); \ + } else { \ + /* unsigned 16 */ \ + unsigned char buf[3]; \ + buf[0] = 0xcd; _msgpack_store16(&buf[1], (uint16_t)d); \ + msgpack_pack_append_buffer(x, buf, 3); \ + } \ + } else { \ + if(d < (1LL<<32)) { \ + /* unsigned 32 */ \ + unsigned char buf[5]; \ + buf[0] = 0xce; _msgpack_store32(&buf[1], (uint32_t)d); \ + msgpack_pack_append_buffer(x, buf, 5); \ + } else { \ + /* unsigned 64 */ \ + unsigned char buf[9]; \ + buf[0] = 0xcf; _msgpack_store64(&buf[1], d); \ + msgpack_pack_append_buffer(x, buf, 9); \ + } \ + } \ + } \ +} while(0) + + +static inline int msgpack_pack_uint8(msgpack_packer* x, uint8_t d) +{ + msgpack_pack_real_uint8(x, d); +} + +static inline int msgpack_pack_uint16(msgpack_packer* x, uint16_t d) +{ + msgpack_pack_real_uint16(x, d); +} + +static inline int msgpack_pack_uint32(msgpack_packer* x, uint32_t d) +{ + msgpack_pack_real_uint32(x, d); +} + +static inline int msgpack_pack_uint64(msgpack_packer* x, uint64_t d) +{ + msgpack_pack_real_uint64(x, d); +} + +static inline int msgpack_pack_int8(msgpack_packer* x, int8_t d) +{ + msgpack_pack_real_int8(x, d); +} + +static inline int msgpack_pack_int16(msgpack_packer* x, int16_t d) +{ + msgpack_pack_real_int16(x, d); +} + +static inline int msgpack_pack_int32(msgpack_packer* x, int32_t d) +{ + msgpack_pack_real_int32(x, d); +} + +static inline int msgpack_pack_int64(msgpack_packer* x, int64_t d) +{ + msgpack_pack_real_int64(x, d); +} + + +//#ifdef msgpack_pack_inline_func_cint + +static inline int msgpack_pack_short(msgpack_packer* x, short d) +{ +#if defined(SIZEOF_SHORT) +#if SIZEOF_SHORT == 2 + msgpack_pack_real_int16(x, d); +#elif SIZEOF_SHORT == 4 + msgpack_pack_real_int32(x, d); +#else + msgpack_pack_real_int64(x, d); +#endif + +#elif defined(SHRT_MAX) +#if SHRT_MAX == 0x7fff + msgpack_pack_real_int16(x, d); +#elif SHRT_MAX == 0x7fffffff + msgpack_pack_real_int32(x, d); +#else + msgpack_pack_real_int64(x, d); +#endif + +#else +if(sizeof(short) == 2) { + msgpack_pack_real_int16(x, d); +} else if(sizeof(short) == 4) { + msgpack_pack_real_int32(x, d); +} else { + msgpack_pack_real_int64(x, d); +} +#endif +} + +static inline int msgpack_pack_int(msgpack_packer* x, int d) +{ +#if defined(SIZEOF_INT) +#if SIZEOF_INT == 2 + msgpack_pack_real_int16(x, d); +#elif SIZEOF_INT == 4 + msgpack_pack_real_int32(x, d); +#else + msgpack_pack_real_int64(x, d); +#endif + +#elif defined(INT_MAX) +#if INT_MAX == 0x7fff + msgpack_pack_real_int16(x, d); +#elif INT_MAX == 0x7fffffff + msgpack_pack_real_int32(x, d); +#else + msgpack_pack_real_int64(x, d); +#endif + +#else +if(sizeof(int) == 2) { + msgpack_pack_real_int16(x, d); +} else if(sizeof(int) == 4) { + msgpack_pack_real_int32(x, d); +} else { + msgpack_pack_real_int64(x, d); +} +#endif +} + +static inline int msgpack_pack_long(msgpack_packer* x, long d) +{ +#if defined(SIZEOF_LONG) +#if SIZEOF_LONG == 2 + msgpack_pack_real_int16(x, d); +#elif SIZEOF_LONG == 4 + msgpack_pack_real_int32(x, d); +#else + msgpack_pack_real_int64(x, d); +#endif + +#elif defined(LONG_MAX) +#if LONG_MAX == 0x7fffL + msgpack_pack_real_int16(x, d); +#elif LONG_MAX == 0x7fffffffL + msgpack_pack_real_int32(x, d); +#else + msgpack_pack_real_int64(x, d); +#endif + +#else +if(sizeof(long) == 2) { + msgpack_pack_real_int16(x, d); +} else if(sizeof(long) == 4) { + msgpack_pack_real_int32(x, d); +} else { + msgpack_pack_real_int64(x, d); +} +#endif +} + +static inline int msgpack_pack_long_long(msgpack_packer* x, long long d) +{ +#if defined(SIZEOF_LONG_LONG) +#if SIZEOF_LONG_LONG == 2 + msgpack_pack_real_int16(x, d); +#elif SIZEOF_LONG_LONG == 4 + msgpack_pack_real_int32(x, d); +#else + msgpack_pack_real_int64(x, d); +#endif + +#elif defined(LLONG_MAX) +#if LLONG_MAX == 0x7fffL + msgpack_pack_real_int16(x, d); +#elif LLONG_MAX == 0x7fffffffL + msgpack_pack_real_int32(x, d); +#else + msgpack_pack_real_int64(x, d); +#endif + +#else +if(sizeof(long long) == 2) { + msgpack_pack_real_int16(x, d); +} else if(sizeof(long long) == 4) { + msgpack_pack_real_int32(x, d); +} else { + msgpack_pack_real_int64(x, d); +} +#endif +} + +static inline int msgpack_pack_unsigned_short(msgpack_packer* x, unsigned short d) +{ +#if defined(SIZEOF_SHORT) +#if SIZEOF_SHORT == 2 + msgpack_pack_real_uint16(x, d); +#elif SIZEOF_SHORT == 4 + msgpack_pack_real_uint32(x, d); +#else + msgpack_pack_real_uint64(x, d); +#endif + +#elif defined(USHRT_MAX) +#if USHRT_MAX == 0xffffU + msgpack_pack_real_uint16(x, d); +#elif USHRT_MAX == 0xffffffffU + msgpack_pack_real_uint32(x, d); +#else + msgpack_pack_real_uint64(x, d); +#endif + +#else +if(sizeof(unsigned short) == 2) { + msgpack_pack_real_uint16(x, d); +} else if(sizeof(unsigned short) == 4) { + msgpack_pack_real_uint32(x, d); +} else { + msgpack_pack_real_uint64(x, d); +} +#endif +} + +static inline int msgpack_pack_unsigned_int(msgpack_packer* x, unsigned int d) +{ +#if defined(SIZEOF_INT) +#if SIZEOF_INT == 2 + msgpack_pack_real_uint16(x, d); +#elif SIZEOF_INT == 4 + msgpack_pack_real_uint32(x, d); +#else + msgpack_pack_real_uint64(x, d); +#endif + +#elif defined(UINT_MAX) +#if UINT_MAX == 0xffffU + msgpack_pack_real_uint16(x, d); +#elif UINT_MAX == 0xffffffffU + msgpack_pack_real_uint32(x, d); +#else + msgpack_pack_real_uint64(x, d); +#endif + +#else +if(sizeof(unsigned int) == 2) { + msgpack_pack_real_uint16(x, d); +} else if(sizeof(unsigned int) == 4) { + msgpack_pack_real_uint32(x, d); +} else { + msgpack_pack_real_uint64(x, d); +} +#endif +} + +static inline int msgpack_pack_unsigned_long(msgpack_packer* x, unsigned long d) +{ +#if defined(SIZEOF_LONG) +#if SIZEOF_LONG == 2 + msgpack_pack_real_uint16(x, d); +#elif SIZEOF_LONG == 4 + msgpack_pack_real_uint32(x, d); +#else + msgpack_pack_real_uint64(x, d); +#endif + +#elif defined(ULONG_MAX) +#if ULONG_MAX == 0xffffUL + msgpack_pack_real_uint16(x, d); +#elif ULONG_MAX == 0xffffffffUL + msgpack_pack_real_uint32(x, d); +#else + msgpack_pack_real_uint64(x, d); +#endif + +#else +if(sizeof(unsigned long) == 2) { + msgpack_pack_real_uint16(x, d); +} else if(sizeof(unsigned long) == 4) { + msgpack_pack_real_uint32(x, d); +} else { + msgpack_pack_real_uint64(x, d); +} +#endif +} + +static inline int msgpack_pack_unsigned_long_long(msgpack_packer* x, unsigned long long d) +{ +#if defined(SIZEOF_LONG_LONG) +#if SIZEOF_LONG_LONG == 2 + msgpack_pack_real_uint16(x, d); +#elif SIZEOF_LONG_LONG == 4 + msgpack_pack_real_uint32(x, d); +#else + msgpack_pack_real_uint64(x, d); +#endif + +#elif defined(ULLONG_MAX) +#if ULLONG_MAX == 0xffffUL + msgpack_pack_real_uint16(x, d); +#elif ULLONG_MAX == 0xffffffffUL + msgpack_pack_real_uint32(x, d); +#else + msgpack_pack_real_uint64(x, d); +#endif + +#else +if(sizeof(unsigned long long) == 2) { + msgpack_pack_real_uint16(x, d); +} else if(sizeof(unsigned long long) == 4) { + msgpack_pack_real_uint32(x, d); +} else { + msgpack_pack_real_uint64(x, d); +} +#endif +} + +//#undef msgpack_pack_inline_func_cint +//#endif + + + +/* + * Float + */ + +static inline int msgpack_pack_float(msgpack_packer* x, float d) +{ + unsigned char buf[5]; + buf[0] = 0xca; + _PyFloat_Pack4(d, &buf[1], 0); + msgpack_pack_append_buffer(x, buf, 5); +} + +static inline int msgpack_pack_double(msgpack_packer* x, double d) +{ + unsigned char buf[9]; + buf[0] = 0xcb; + _PyFloat_Pack8(d, &buf[1], 0); + msgpack_pack_append_buffer(x, buf, 9); +} + + +/* + * Nil + */ + +static inline int msgpack_pack_nil(msgpack_packer* x) +{ + static const unsigned char d = 0xc0; + msgpack_pack_append_buffer(x, &d, 1); +} + + +/* + * Boolean + */ + +static inline int msgpack_pack_true(msgpack_packer* x) +{ + static const unsigned char d = 0xc3; + msgpack_pack_append_buffer(x, &d, 1); +} + +static inline int msgpack_pack_false(msgpack_packer* x) +{ + static const unsigned char d = 0xc2; + msgpack_pack_append_buffer(x, &d, 1); +} + + +/* + * Array + */ + +static inline int msgpack_pack_array(msgpack_packer* x, unsigned int n) +{ + if(n < 16) { + unsigned char d = 0x90 | n; + msgpack_pack_append_buffer(x, &d, 1); + } else if(n < 65536) { + unsigned char buf[3]; + buf[0] = 0xdc; _msgpack_store16(&buf[1], (uint16_t)n); + msgpack_pack_append_buffer(x, buf, 3); + } else { + unsigned char buf[5]; + buf[0] = 0xdd; _msgpack_store32(&buf[1], (uint32_t)n); + msgpack_pack_append_buffer(x, buf, 5); + } +} + + +/* + * Map + */ + +static inline int msgpack_pack_map(msgpack_packer* x, unsigned int n) +{ + if(n < 16) { + unsigned char d = 0x80 | n; + msgpack_pack_append_buffer(x, &TAKE8_8(d), 1); + } else if(n < 65536) { + unsigned char buf[3]; + buf[0] = 0xde; _msgpack_store16(&buf[1], (uint16_t)n); + msgpack_pack_append_buffer(x, buf, 3); + } else { + unsigned char buf[5]; + buf[0] = 0xdf; _msgpack_store32(&buf[1], (uint32_t)n); + msgpack_pack_append_buffer(x, buf, 5); + } +} + + +/* + * Raw + */ + +static inline int msgpack_pack_raw(msgpack_packer* x, size_t l) +{ + if (l < 32) { + unsigned char d = 0xa0 | (uint8_t)l; + msgpack_pack_append_buffer(x, &TAKE8_8(d), 1); + } else if (x->use_bin_type && l < 256) { // str8 is new format introduced with bin. + unsigned char buf[2] = {0xd9, (uint8_t)l}; + msgpack_pack_append_buffer(x, buf, 2); + } else if (l < 65536) { + unsigned char buf[3]; + buf[0] = 0xda; _msgpack_store16(&buf[1], (uint16_t)l); + msgpack_pack_append_buffer(x, buf, 3); + } else { + unsigned char buf[5]; + buf[0] = 0xdb; _msgpack_store32(&buf[1], (uint32_t)l); + msgpack_pack_append_buffer(x, buf, 5); + } +} + +/* + * bin + */ +static inline int msgpack_pack_bin(msgpack_packer *x, size_t l) +{ + if (!x->use_bin_type) { + return msgpack_pack_raw(x, l); + } + if (l < 256) { + unsigned char buf[2] = {0xc4, (unsigned char)l}; + msgpack_pack_append_buffer(x, buf, 2); + } else if (l < 65536) { + unsigned char buf[3] = {0xc5}; + _msgpack_store16(&buf[1], (uint16_t)l); + msgpack_pack_append_buffer(x, buf, 3); + } else { + unsigned char buf[5] = {0xc6}; + _msgpack_store32(&buf[1], (uint32_t)l); + msgpack_pack_append_buffer(x, buf, 5); + } +} + +static inline int msgpack_pack_raw_body(msgpack_packer* x, const void* b, size_t l) +{ + if (l > 0) msgpack_pack_append_buffer(x, (const unsigned char*)b, l); + return 0; +} + +/* + * Ext + */ +static inline int msgpack_pack_ext(msgpack_packer* x, char typecode, size_t l) +{ + if (l == 1) { + unsigned char buf[2]; + buf[0] = 0xd4; + buf[1] = (unsigned char)typecode; + msgpack_pack_append_buffer(x, buf, 2); + } + else if(l == 2) { + unsigned char buf[2]; + buf[0] = 0xd5; + buf[1] = (unsigned char)typecode; + msgpack_pack_append_buffer(x, buf, 2); + } + else if(l == 4) { + unsigned char buf[2]; + buf[0] = 0xd6; + buf[1] = (unsigned char)typecode; + msgpack_pack_append_buffer(x, buf, 2); + } + else if(l == 8) { + unsigned char buf[2]; + buf[0] = 0xd7; + buf[1] = (unsigned char)typecode; + msgpack_pack_append_buffer(x, buf, 2); + } + else if(l == 16) { + unsigned char buf[2]; + buf[0] = 0xd8; + buf[1] = (unsigned char)typecode; + msgpack_pack_append_buffer(x, buf, 2); + } + else if(l < 256) { + unsigned char buf[3]; + buf[0] = 0xc7; + buf[1] = l; + buf[2] = (unsigned char)typecode; + msgpack_pack_append_buffer(x, buf, 3); + } else if(l < 65536) { + unsigned char buf[4]; + buf[0] = 0xc8; + _msgpack_store16(&buf[1], (uint16_t)l); + buf[3] = (unsigned char)typecode; + msgpack_pack_append_buffer(x, buf, 4); + } else { + unsigned char buf[6]; + buf[0] = 0xc9; + _msgpack_store32(&buf[1], (uint32_t)l); + buf[5] = (unsigned char)typecode; + msgpack_pack_append_buffer(x, buf, 6); + } + +} + + + +#undef msgpack_pack_append_buffer + +#undef TAKE8_8 +#undef TAKE8_16 +#undef TAKE8_32 +#undef TAKE8_64 + +#undef msgpack_pack_real_uint8 +#undef msgpack_pack_real_uint16 +#undef msgpack_pack_real_uint32 +#undef msgpack_pack_real_uint64 +#undef msgpack_pack_real_int8 +#undef msgpack_pack_real_int16 +#undef msgpack_pack_real_int32 +#undef msgpack_pack_real_int64 diff --git a/ddtrace/vendor/msgpack/setup.py b/ddtrace/vendor/msgpack/setup.py new file mode 100644 index 0000000000..addc81cbd9 --- /dev/null +++ b/ddtrace/vendor/msgpack/setup.py @@ -0,0 +1,26 @@ +__all__ = ["get_extensions"] + +from setuptools import Extension +import sys + + +def get_extensions(): + libraries = [] + if sys.platform == "win32": + libraries.append("ws2_32") + + macros = [] + if sys.byteorder == "big": + macros = [("__BIG_ENDIAN__", "1")] + else: + macros = [("__LITTLE_ENDIAN__", "1")] + + ext = Extension( + "ddtrace.vendor.msgpack._cmsgpack", + sources=["ddtrace/vendor/msgpack/_cmsgpack.cpp"], + libraries=libraries, + include_dirs=["ddtrace/vendor/"], + define_macros=macros, + ) + + return [ext] diff --git a/ddtrace/vendor/msgpack/sysdep.h b/ddtrace/vendor/msgpack/sysdep.h new file mode 100644 index 0000000000..ed9c1bc0b8 --- /dev/null +++ b/ddtrace/vendor/msgpack/sysdep.h @@ -0,0 +1,194 @@ +/* + * MessagePack system dependencies + * + * Copyright (C) 2008-2010 FURUHASHI Sadayuki + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#ifndef MSGPACK_SYSDEP_H__ +#define MSGPACK_SYSDEP_H__ + +#include +#include +#if defined(_MSC_VER) && _MSC_VER < 1600 +typedef __int8 int8_t; +typedef unsigned __int8 uint8_t; +typedef __int16 int16_t; +typedef unsigned __int16 uint16_t; +typedef __int32 int32_t; +typedef unsigned __int32 uint32_t; +typedef __int64 int64_t; +typedef unsigned __int64 uint64_t; +#elif defined(_MSC_VER) // && _MSC_VER >= 1600 +#include +#else +#include +#include +#endif + +#ifdef _WIN32 +#define _msgpack_atomic_counter_header +typedef long _msgpack_atomic_counter_t; +#define _msgpack_sync_decr_and_fetch(ptr) InterlockedDecrement(ptr) +#define _msgpack_sync_incr_and_fetch(ptr) InterlockedIncrement(ptr) +#elif defined(__GNUC__) && ((__GNUC__*10 + __GNUC_MINOR__) < 41) +#define _msgpack_atomic_counter_header "gcc_atomic.h" +#else +typedef unsigned int _msgpack_atomic_counter_t; +#define _msgpack_sync_decr_and_fetch(ptr) __sync_sub_and_fetch(ptr, 1) +#define _msgpack_sync_incr_and_fetch(ptr) __sync_add_and_fetch(ptr, 1) +#endif + +#ifdef _WIN32 + +#ifdef __cplusplus +/* numeric_limits::min,max */ +#ifdef max +#undef max +#endif +#ifdef min +#undef min +#endif +#endif + +#else +#include /* __BYTE_ORDER */ +#endif + +#if !defined(__LITTLE_ENDIAN__) && !defined(__BIG_ENDIAN__) +#if __BYTE_ORDER == __LITTLE_ENDIAN +#define __LITTLE_ENDIAN__ +#elif __BYTE_ORDER == __BIG_ENDIAN +#define __BIG_ENDIAN__ +#elif _WIN32 +#define __LITTLE_ENDIAN__ +#endif +#endif + + +#ifdef __LITTLE_ENDIAN__ + +#ifdef _WIN32 +# if defined(ntohs) +# define _msgpack_be16(x) ntohs(x) +# elif defined(_byteswap_ushort) || (defined(_MSC_VER) && _MSC_VER >= 1400) +# define _msgpack_be16(x) ((uint16_t)_byteswap_ushort((unsigned short)x)) +# else +# define _msgpack_be16(x) ( \ + ((((uint16_t)x) << 8) ) | \ + ((((uint16_t)x) >> 8) ) ) +# endif +#else +# define _msgpack_be16(x) ntohs(x) +#endif + +#ifdef _WIN32 +# if defined(ntohl) +# define _msgpack_be32(x) ntohl(x) +# elif defined(_byteswap_ulong) || (defined(_MSC_VER) && _MSC_VER >= 1400) +# define _msgpack_be32(x) ((uint32_t)_byteswap_ulong((unsigned long)x)) +# else +# define _msgpack_be32(x) \ + ( ((((uint32_t)x) << 24) ) | \ + ((((uint32_t)x) << 8) & 0x00ff0000U ) | \ + ((((uint32_t)x) >> 8) & 0x0000ff00U ) | \ + ((((uint32_t)x) >> 24) ) ) +# endif +#else +# define _msgpack_be32(x) ntohl(x) +#endif + +#if defined(_byteswap_uint64) || (defined(_MSC_VER) && _MSC_VER >= 1400) +# define _msgpack_be64(x) (_byteswap_uint64(x)) +#elif defined(bswap_64) +# define _msgpack_be64(x) bswap_64(x) +#elif defined(__DARWIN_OSSwapInt64) +# define _msgpack_be64(x) __DARWIN_OSSwapInt64(x) +#else +#define _msgpack_be64(x) \ + ( ((((uint64_t)x) << 56) ) | \ + ((((uint64_t)x) << 40) & 0x00ff000000000000ULL ) | \ + ((((uint64_t)x) << 24) & 0x0000ff0000000000ULL ) | \ + ((((uint64_t)x) << 8) & 0x000000ff00000000ULL ) | \ + ((((uint64_t)x) >> 8) & 0x00000000ff000000ULL ) | \ + ((((uint64_t)x) >> 24) & 0x0000000000ff0000ULL ) | \ + ((((uint64_t)x) >> 40) & 0x000000000000ff00ULL ) | \ + ((((uint64_t)x) >> 56) ) ) +#endif + +#define _msgpack_load16(cast, from) ((cast)( \ + (((uint16_t)((uint8_t*)(from))[0]) << 8) | \ + (((uint16_t)((uint8_t*)(from))[1]) ) )) + +#define _msgpack_load32(cast, from) ((cast)( \ + (((uint32_t)((uint8_t*)(from))[0]) << 24) | \ + (((uint32_t)((uint8_t*)(from))[1]) << 16) | \ + (((uint32_t)((uint8_t*)(from))[2]) << 8) | \ + (((uint32_t)((uint8_t*)(from))[3]) ) )) + +#define _msgpack_load64(cast, from) ((cast)( \ + (((uint64_t)((uint8_t*)(from))[0]) << 56) | \ + (((uint64_t)((uint8_t*)(from))[1]) << 48) | \ + (((uint64_t)((uint8_t*)(from))[2]) << 40) | \ + (((uint64_t)((uint8_t*)(from))[3]) << 32) | \ + (((uint64_t)((uint8_t*)(from))[4]) << 24) | \ + (((uint64_t)((uint8_t*)(from))[5]) << 16) | \ + (((uint64_t)((uint8_t*)(from))[6]) << 8) | \ + (((uint64_t)((uint8_t*)(from))[7]) ) )) + +#else + +#define _msgpack_be16(x) (x) +#define _msgpack_be32(x) (x) +#define _msgpack_be64(x) (x) + +#define _msgpack_load16(cast, from) ((cast)( \ + (((uint16_t)((uint8_t*)from)[0]) << 8) | \ + (((uint16_t)((uint8_t*)from)[1]) ) )) + +#define _msgpack_load32(cast, from) ((cast)( \ + (((uint32_t)((uint8_t*)from)[0]) << 24) | \ + (((uint32_t)((uint8_t*)from)[1]) << 16) | \ + (((uint32_t)((uint8_t*)from)[2]) << 8) | \ + (((uint32_t)((uint8_t*)from)[3]) ) )) + +#define _msgpack_load64(cast, from) ((cast)( \ + (((uint64_t)((uint8_t*)from)[0]) << 56) | \ + (((uint64_t)((uint8_t*)from)[1]) << 48) | \ + (((uint64_t)((uint8_t*)from)[2]) << 40) | \ + (((uint64_t)((uint8_t*)from)[3]) << 32) | \ + (((uint64_t)((uint8_t*)from)[4]) << 24) | \ + (((uint64_t)((uint8_t*)from)[5]) << 16) | \ + (((uint64_t)((uint8_t*)from)[6]) << 8) | \ + (((uint64_t)((uint8_t*)from)[7]) ) )) +#endif + + +#define _msgpack_store16(to, num) \ + do { uint16_t val = _msgpack_be16(num); memcpy(to, &val, 2); } while(0) +#define _msgpack_store32(to, num) \ + do { uint32_t val = _msgpack_be32(num); memcpy(to, &val, 4); } while(0) +#define _msgpack_store64(to, num) \ + do { uint64_t val = _msgpack_be64(num); memcpy(to, &val, 8); } while(0) + +/* +#define _msgpack_load16(cast, from) \ + ({ cast val; memcpy(&val, (char*)from, 2); _msgpack_be16(val); }) +#define _msgpack_load32(cast, from) \ + ({ cast val; memcpy(&val, (char*)from, 4); _msgpack_be32(val); }) +#define _msgpack_load64(cast, from) \ + ({ cast val; memcpy(&val, (char*)from, 8); _msgpack_be64(val); }) +*/ + + +#endif /* msgpack/sysdep.h */ diff --git a/ddtrace/vendor/msgpack/unpack.h b/ddtrace/vendor/msgpack/unpack.h new file mode 100644 index 0000000000..85dbbed5b6 --- /dev/null +++ b/ddtrace/vendor/msgpack/unpack.h @@ -0,0 +1,287 @@ +/* + * MessagePack for Python unpacking routine + * + * Copyright (C) 2009 Naoki INADA + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#define MSGPACK_EMBED_STACK_SIZE (1024) +#include "unpack_define.h" + +typedef struct unpack_user { + bool use_list; + bool raw; + bool has_pairs_hook; + bool strict_map_key; + PyObject *object_hook; + PyObject *list_hook; + PyObject *ext_hook; + const char *encoding; + const char *unicode_errors; + Py_ssize_t max_str_len, max_bin_len, max_array_len, max_map_len, max_ext_len; +} unpack_user; + +typedef PyObject* msgpack_unpack_object; +struct unpack_context; +typedef struct unpack_context unpack_context; +typedef int (*execute_fn)(unpack_context *ctx, const char* data, Py_ssize_t len, Py_ssize_t* off); + +static inline msgpack_unpack_object unpack_callback_root(unpack_user* u) +{ + return NULL; +} + +static inline int unpack_callback_uint16(unpack_user* u, uint16_t d, msgpack_unpack_object* o) +{ + PyObject *p = PyInt_FromLong((long)d); + if (!p) + return -1; + *o = p; + return 0; +} +static inline int unpack_callback_uint8(unpack_user* u, uint8_t d, msgpack_unpack_object* o) +{ + return unpack_callback_uint16(u, d, o); +} + + +static inline int unpack_callback_uint32(unpack_user* u, uint32_t d, msgpack_unpack_object* o) +{ + PyObject *p = PyInt_FromSize_t((size_t)d); + if (!p) + return -1; + *o = p; + return 0; +} + +static inline int unpack_callback_uint64(unpack_user* u, uint64_t d, msgpack_unpack_object* o) +{ + PyObject *p; + if (d > LONG_MAX) { + p = PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG)d); + } else { + p = PyInt_FromLong((long)d); + } + if (!p) + return -1; + *o = p; + return 0; +} + +static inline int unpack_callback_int32(unpack_user* u, int32_t d, msgpack_unpack_object* o) +{ + PyObject *p = PyInt_FromLong(d); + if (!p) + return -1; + *o = p; + return 0; +} + +static inline int unpack_callback_int16(unpack_user* u, int16_t d, msgpack_unpack_object* o) +{ + return unpack_callback_int32(u, d, o); +} + +static inline int unpack_callback_int8(unpack_user* u, int8_t d, msgpack_unpack_object* o) +{ + return unpack_callback_int32(u, d, o); +} + +static inline int unpack_callback_int64(unpack_user* u, int64_t d, msgpack_unpack_object* o) +{ + PyObject *p; + if (d > LONG_MAX || d < LONG_MIN) { + p = PyLong_FromLongLong((PY_LONG_LONG)d); + } else { + p = PyInt_FromLong((long)d); + } + *o = p; + return 0; +} + +static inline int unpack_callback_double(unpack_user* u, double d, msgpack_unpack_object* o) +{ + PyObject *p = PyFloat_FromDouble(d); + if (!p) + return -1; + *o = p; + return 0; +} + +static inline int unpack_callback_float(unpack_user* u, float d, msgpack_unpack_object* o) +{ + return unpack_callback_double(u, d, o); +} + +static inline int unpack_callback_nil(unpack_user* u, msgpack_unpack_object* o) +{ Py_INCREF(Py_None); *o = Py_None; return 0; } + +static inline int unpack_callback_true(unpack_user* u, msgpack_unpack_object* o) +{ Py_INCREF(Py_True); *o = Py_True; return 0; } + +static inline int unpack_callback_false(unpack_user* u, msgpack_unpack_object* o) +{ Py_INCREF(Py_False); *o = Py_False; return 0; } + +static inline int unpack_callback_array(unpack_user* u, unsigned int n, msgpack_unpack_object* o) +{ + if (n > u->max_array_len) { + PyErr_Format(PyExc_ValueError, "%u exceeds max_array_len(%zd)", n, u->max_array_len); + return -1; + } + PyObject *p = u->use_list ? PyList_New(n) : PyTuple_New(n); + + if (!p) + return -1; + *o = p; + return 0; +} + +static inline int unpack_callback_array_item(unpack_user* u, unsigned int current, msgpack_unpack_object* c, msgpack_unpack_object o) +{ + if (u->use_list) + PyList_SET_ITEM(*c, current, o); + else + PyTuple_SET_ITEM(*c, current, o); + return 0; +} + +static inline int unpack_callback_array_end(unpack_user* u, msgpack_unpack_object* c) +{ + if (u->list_hook) { + PyObject *new_c = PyObject_CallFunctionObjArgs(u->list_hook, *c, NULL); + if (!new_c) + return -1; + Py_DECREF(*c); + *c = new_c; + } + return 0; +} + +static inline int unpack_callback_map(unpack_user* u, unsigned int n, msgpack_unpack_object* o) +{ + if (n > u->max_map_len) { + PyErr_Format(PyExc_ValueError, "%u exceeds max_map_len(%zd)", n, u->max_map_len); + return -1; + } + PyObject *p; + if (u->has_pairs_hook) { + p = PyList_New(n); // Or use tuple? + } + else { + p = PyDict_New(); + } + if (!p) + return -1; + *o = p; + return 0; +} + +static inline int unpack_callback_map_item(unpack_user* u, unsigned int current, msgpack_unpack_object* c, msgpack_unpack_object k, msgpack_unpack_object v) +{ + if (u->strict_map_key && !PyUnicode_CheckExact(k) && !PyBytes_CheckExact(k)) { + PyErr_Format(PyExc_ValueError, "%.100s is not allowed for map key", Py_TYPE(k)->tp_name); + return -1; + } + if (u->has_pairs_hook) { + msgpack_unpack_object item = PyTuple_Pack(2, k, v); + if (!item) + return -1; + Py_DECREF(k); + Py_DECREF(v); + PyList_SET_ITEM(*c, current, item); + return 0; + } + else if (PyDict_SetItem(*c, k, v) == 0) { + Py_DECREF(k); + Py_DECREF(v); + return 0; + } + return -1; +} + +static inline int unpack_callback_map_end(unpack_user* u, msgpack_unpack_object* c) +{ + if (u->object_hook) { + PyObject *new_c = PyObject_CallFunctionObjArgs(u->object_hook, *c, NULL); + if (!new_c) + return -1; + + Py_DECREF(*c); + *c = new_c; + } + return 0; +} + +static inline int unpack_callback_raw(unpack_user* u, const char* b, const char* p, unsigned int l, msgpack_unpack_object* o) +{ + if (l > u->max_str_len) { + PyErr_Format(PyExc_ValueError, "%u exceeds max_str_len(%zd)", l, u->max_str_len); + return -1; + } + + PyObject *py; + + if (u->encoding) { + py = PyUnicode_Decode(p, l, u->encoding, u->unicode_errors); + } else if (u->raw) { + py = PyBytes_FromStringAndSize(p, l); + } else { + py = PyUnicode_DecodeUTF8(p, l, u->unicode_errors); + } + if (!py) + return -1; + *o = py; + return 0; +} + +static inline int unpack_callback_bin(unpack_user* u, const char* b, const char* p, unsigned int l, msgpack_unpack_object* o) +{ + if (l > u->max_bin_len) { + PyErr_Format(PyExc_ValueError, "%u exceeds max_bin_len(%zd)", l, u->max_bin_len); + return -1; + } + + PyObject *py = PyBytes_FromStringAndSize(p, l); + if (!py) + return -1; + *o = py; + return 0; +} + +static inline int unpack_callback_ext(unpack_user* u, const char* base, const char* pos, + unsigned int length, msgpack_unpack_object* o) +{ + PyObject *py; + int8_t typecode = (int8_t)*pos++; + if (!u->ext_hook) { + PyErr_SetString(PyExc_AssertionError, "u->ext_hook cannot be NULL"); + return -1; + } + if (length-1 > u->max_ext_len) { + PyErr_Format(PyExc_ValueError, "%u exceeds max_ext_len(%zd)", length, u->max_ext_len); + return -1; + } + // length also includes the typecode, so the actual data is length-1 +#if PY_MAJOR_VERSION == 2 + py = PyObject_CallFunction(u->ext_hook, "(is#)", (int)typecode, pos, (Py_ssize_t)length-1); +#else + py = PyObject_CallFunction(u->ext_hook, "(iy#)", (int)typecode, pos, (Py_ssize_t)length-1); +#endif + if (!py) + return -1; + *o = py; + return 0; +} + +#include "unpack_template.h" diff --git a/ddtrace/vendor/msgpack/unpack_define.h b/ddtrace/vendor/msgpack/unpack_define.h new file mode 100644 index 0000000000..0dd708d17c --- /dev/null +++ b/ddtrace/vendor/msgpack/unpack_define.h @@ -0,0 +1,95 @@ +/* + * MessagePack unpacking routine template + * + * Copyright (C) 2008-2010 FURUHASHI Sadayuki + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#ifndef MSGPACK_UNPACK_DEFINE_H__ +#define MSGPACK_UNPACK_DEFINE_H__ + +#include "msgpack/sysdep.h" +#include +#include +#include +#include + +#ifdef __cplusplus +extern "C" { +#endif + + +#ifndef MSGPACK_EMBED_STACK_SIZE +#define MSGPACK_EMBED_STACK_SIZE 32 +#endif + + +// CS is first byte & 0x1f +typedef enum { + CS_HEADER = 0x00, // nil + + //CS_ = 0x01, + //CS_ = 0x02, // false + //CS_ = 0x03, // true + + CS_BIN_8 = 0x04, + CS_BIN_16 = 0x05, + CS_BIN_32 = 0x06, + + CS_EXT_8 = 0x07, + CS_EXT_16 = 0x08, + CS_EXT_32 = 0x09, + + CS_FLOAT = 0x0a, + CS_DOUBLE = 0x0b, + CS_UINT_8 = 0x0c, + CS_UINT_16 = 0x0d, + CS_UINT_32 = 0x0e, + CS_UINT_64 = 0x0f, + CS_INT_8 = 0x10, + CS_INT_16 = 0x11, + CS_INT_32 = 0x12, + CS_INT_64 = 0x13, + + //CS_FIXEXT1 = 0x14, + //CS_FIXEXT2 = 0x15, + //CS_FIXEXT4 = 0x16, + //CS_FIXEXT8 = 0x17, + //CS_FIXEXT16 = 0x18, + + CS_RAW_8 = 0x19, + CS_RAW_16 = 0x1a, + CS_RAW_32 = 0x1b, + CS_ARRAY_16 = 0x1c, + CS_ARRAY_32 = 0x1d, + CS_MAP_16 = 0x1e, + CS_MAP_32 = 0x1f, + + ACS_RAW_VALUE, + ACS_BIN_VALUE, + ACS_EXT_VALUE, +} msgpack_unpack_state; + + +typedef enum { + CT_ARRAY_ITEM, + CT_MAP_KEY, + CT_MAP_VALUE, +} msgpack_container_type; + + +#ifdef __cplusplus +} +#endif + +#endif /* msgpack/unpack_define.h */ diff --git a/ddtrace/vendor/msgpack/unpack_template.h b/ddtrace/vendor/msgpack/unpack_template.h new file mode 100644 index 0000000000..9924b9c6f2 --- /dev/null +++ b/ddtrace/vendor/msgpack/unpack_template.h @@ -0,0 +1,454 @@ +/* + * MessagePack unpacking routine template + * + * Copyright (C) 2008-2010 FURUHASHI Sadayuki + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef USE_CASE_RANGE +#if !defined(_MSC_VER) +#define USE_CASE_RANGE +#endif +#endif + +typedef struct unpack_stack { + PyObject* obj; + Py_ssize_t size; + Py_ssize_t count; + unsigned int ct; + PyObject* map_key; +} unpack_stack; + +struct unpack_context { + unpack_user user; + unsigned int cs; + unsigned int trail; + unsigned int top; + /* + unpack_stack* stack; + unsigned int stack_size; + unpack_stack embed_stack[MSGPACK_EMBED_STACK_SIZE]; + */ + unpack_stack stack[MSGPACK_EMBED_STACK_SIZE]; +}; + + +static inline void unpack_init(unpack_context* ctx) +{ + ctx->cs = CS_HEADER; + ctx->trail = 0; + ctx->top = 0; + /* + ctx->stack = ctx->embed_stack; + ctx->stack_size = MSGPACK_EMBED_STACK_SIZE; + */ + ctx->stack[0].obj = unpack_callback_root(&ctx->user); +} + +/* +static inline void unpack_destroy(unpack_context* ctx) +{ + if(ctx->stack_size != MSGPACK_EMBED_STACK_SIZE) { + free(ctx->stack); + } +} +*/ + +static inline PyObject* unpack_data(unpack_context* ctx) +{ + return (ctx)->stack[0].obj; +} + +static inline void unpack_clear(unpack_context *ctx) +{ + Py_CLEAR(ctx->stack[0].obj); +} + +template +static inline int unpack_execute(unpack_context* ctx, const char* data, Py_ssize_t len, Py_ssize_t* off) +{ + assert(len >= *off); + + const unsigned char* p = (unsigned char*)data + *off; + const unsigned char* const pe = (unsigned char*)data + len; + const void* n = p; + + unsigned int trail = ctx->trail; + unsigned int cs = ctx->cs; + unsigned int top = ctx->top; + unpack_stack* stack = ctx->stack; + /* + unsigned int stack_size = ctx->stack_size; + */ + unpack_user* user = &ctx->user; + + PyObject* obj = NULL; + unpack_stack* c = NULL; + + int ret; + +#define construct_cb(name) \ + construct && unpack_callback ## name + +#define push_simple_value(func) \ + if(construct_cb(func)(user, &obj) < 0) { goto _failed; } \ + goto _push +#define push_fixed_value(func, arg) \ + if(construct_cb(func)(user, arg, &obj) < 0) { goto _failed; } \ + goto _push +#define push_variable_value(func, base, pos, len) \ + if(construct_cb(func)(user, \ + (const char*)base, (const char*)pos, len, &obj) < 0) { goto _failed; } \ + goto _push + +#define again_fixed_trail(_cs, trail_len) \ + trail = trail_len; \ + cs = _cs; \ + goto _fixed_trail_again +#define again_fixed_trail_if_zero(_cs, trail_len, ifzero) \ + trail = trail_len; \ + if(trail == 0) { goto ifzero; } \ + cs = _cs; \ + goto _fixed_trail_again + +#define start_container(func, count_, ct_) \ + if(top >= MSGPACK_EMBED_STACK_SIZE) { ret = -3; goto _end; } \ + if(construct_cb(func)(user, count_, &stack[top].obj) < 0) { goto _failed; } \ + if((count_) == 0) { obj = stack[top].obj; \ + if (construct_cb(func##_end)(user, &obj) < 0) { goto _failed; } \ + goto _push; } \ + stack[top].ct = ct_; \ + stack[top].size = count_; \ + stack[top].count = 0; \ + ++top; \ + goto _header_again + +#define NEXT_CS(p) ((unsigned int)*p & 0x1f) + +#ifdef USE_CASE_RANGE +#define SWITCH_RANGE_BEGIN switch(*p) { +#define SWITCH_RANGE(FROM, TO) case FROM ... TO: +#define SWITCH_RANGE_DEFAULT default: +#define SWITCH_RANGE_END } +#else +#define SWITCH_RANGE_BEGIN { if(0) { +#define SWITCH_RANGE(FROM, TO) } else if(FROM <= *p && *p <= TO) { +#define SWITCH_RANGE_DEFAULT } else { +#define SWITCH_RANGE_END } } +#endif + + if(p == pe) { goto _out; } + do { + switch(cs) { + case CS_HEADER: + SWITCH_RANGE_BEGIN + SWITCH_RANGE(0x00, 0x7f) // Positive Fixnum + push_fixed_value(_uint8, *(uint8_t*)p); + SWITCH_RANGE(0xe0, 0xff) // Negative Fixnum + push_fixed_value(_int8, *(int8_t*)p); + SWITCH_RANGE(0xc0, 0xdf) // Variable + switch(*p) { + case 0xc0: // nil + push_simple_value(_nil); + //case 0xc1: // never used + case 0xc2: // false + push_simple_value(_false); + case 0xc3: // true + push_simple_value(_true); + case 0xc4: // bin 8 + again_fixed_trail(NEXT_CS(p), 1); + case 0xc5: // bin 16 + again_fixed_trail(NEXT_CS(p), 2); + case 0xc6: // bin 32 + again_fixed_trail(NEXT_CS(p), 4); + case 0xc7: // ext 8 + again_fixed_trail(NEXT_CS(p), 1); + case 0xc8: // ext 16 + again_fixed_trail(NEXT_CS(p), 2); + case 0xc9: // ext 32 + again_fixed_trail(NEXT_CS(p), 4); + case 0xca: // float + case 0xcb: // double + case 0xcc: // unsigned int 8 + case 0xcd: // unsigned int 16 + case 0xce: // unsigned int 32 + case 0xcf: // unsigned int 64 + case 0xd0: // signed int 8 + case 0xd1: // signed int 16 + case 0xd2: // signed int 32 + case 0xd3: // signed int 64 + again_fixed_trail(NEXT_CS(p), 1 << (((unsigned int)*p) & 0x03)); + case 0xd4: // fixext 1 + case 0xd5: // fixext 2 + case 0xd6: // fixext 4 + case 0xd7: // fixext 8 + again_fixed_trail_if_zero(ACS_EXT_VALUE, + (1 << (((unsigned int)*p) & 0x03))+1, + _ext_zero); + case 0xd8: // fixext 16 + again_fixed_trail_if_zero(ACS_EXT_VALUE, 16+1, _ext_zero); + case 0xd9: // str 8 + again_fixed_trail(NEXT_CS(p), 1); + case 0xda: // raw 16 + case 0xdb: // raw 32 + case 0xdc: // array 16 + case 0xdd: // array 32 + case 0xde: // map 16 + case 0xdf: // map 32 + again_fixed_trail(NEXT_CS(p), 2 << (((unsigned int)*p) & 0x01)); + default: + ret = -2; + goto _end; + } + SWITCH_RANGE(0xa0, 0xbf) // FixRaw + again_fixed_trail_if_zero(ACS_RAW_VALUE, ((unsigned int)*p & 0x1f), _raw_zero); + SWITCH_RANGE(0x90, 0x9f) // FixArray + start_container(_array, ((unsigned int)*p) & 0x0f, CT_ARRAY_ITEM); + SWITCH_RANGE(0x80, 0x8f) // FixMap + start_container(_map, ((unsigned int)*p) & 0x0f, CT_MAP_KEY); + + SWITCH_RANGE_DEFAULT + ret = -2; + goto _end; + SWITCH_RANGE_END + // end CS_HEADER + + + _fixed_trail_again: + ++p; + + default: + if((size_t)(pe - p) < trail) { goto _out; } + n = p; p += trail - 1; + switch(cs) { + case CS_EXT_8: + again_fixed_trail_if_zero(ACS_EXT_VALUE, *(uint8_t*)n+1, _ext_zero); + case CS_EXT_16: + again_fixed_trail_if_zero(ACS_EXT_VALUE, + _msgpack_load16(uint16_t,n)+1, + _ext_zero); + case CS_EXT_32: + again_fixed_trail_if_zero(ACS_EXT_VALUE, + _msgpack_load32(uint32_t,n)+1, + _ext_zero); + case CS_FLOAT: { + double f = _PyFloat_Unpack4((unsigned char*)n, 0); + push_fixed_value(_float, f); } + case CS_DOUBLE: { + double f = _PyFloat_Unpack8((unsigned char*)n, 0); + push_fixed_value(_double, f); } + case CS_UINT_8: + push_fixed_value(_uint8, *(uint8_t*)n); + case CS_UINT_16: + push_fixed_value(_uint16, _msgpack_load16(uint16_t,n)); + case CS_UINT_32: + push_fixed_value(_uint32, _msgpack_load32(uint32_t,n)); + case CS_UINT_64: + push_fixed_value(_uint64, _msgpack_load64(uint64_t,n)); + + case CS_INT_8: + push_fixed_value(_int8, *(int8_t*)n); + case CS_INT_16: + push_fixed_value(_int16, _msgpack_load16(int16_t,n)); + case CS_INT_32: + push_fixed_value(_int32, _msgpack_load32(int32_t,n)); + case CS_INT_64: + push_fixed_value(_int64, _msgpack_load64(int64_t,n)); + + case CS_BIN_8: + again_fixed_trail_if_zero(ACS_BIN_VALUE, *(uint8_t*)n, _bin_zero); + case CS_BIN_16: + again_fixed_trail_if_zero(ACS_BIN_VALUE, _msgpack_load16(uint16_t,n), _bin_zero); + case CS_BIN_32: + again_fixed_trail_if_zero(ACS_BIN_VALUE, _msgpack_load32(uint32_t,n), _bin_zero); + case ACS_BIN_VALUE: + _bin_zero: + push_variable_value(_bin, data, n, trail); + + case CS_RAW_8: + again_fixed_trail_if_zero(ACS_RAW_VALUE, *(uint8_t*)n, _raw_zero); + case CS_RAW_16: + again_fixed_trail_if_zero(ACS_RAW_VALUE, _msgpack_load16(uint16_t,n), _raw_zero); + case CS_RAW_32: + again_fixed_trail_if_zero(ACS_RAW_VALUE, _msgpack_load32(uint32_t,n), _raw_zero); + case ACS_RAW_VALUE: + _raw_zero: + push_variable_value(_raw, data, n, trail); + + case ACS_EXT_VALUE: + _ext_zero: + push_variable_value(_ext, data, n, trail); + + case CS_ARRAY_16: + start_container(_array, _msgpack_load16(uint16_t,n), CT_ARRAY_ITEM); + case CS_ARRAY_32: + /* FIXME security guard */ + start_container(_array, _msgpack_load32(uint32_t,n), CT_ARRAY_ITEM); + + case CS_MAP_16: + start_container(_map, _msgpack_load16(uint16_t,n), CT_MAP_KEY); + case CS_MAP_32: + /* FIXME security guard */ + start_container(_map, _msgpack_load32(uint32_t,n), CT_MAP_KEY); + + default: + goto _failed; + } + } + +_push: + if(top == 0) { goto _finish; } + c = &stack[top-1]; + switch(c->ct) { + case CT_ARRAY_ITEM: + if(construct_cb(_array_item)(user, c->count, &c->obj, obj) < 0) { goto _failed; } + if(++c->count == c->size) { + obj = c->obj; + if (construct_cb(_array_end)(user, &obj) < 0) { goto _failed; } + --top; + /*printf("stack pop %d\n", top);*/ + goto _push; + } + goto _header_again; + case CT_MAP_KEY: + c->map_key = obj; + c->ct = CT_MAP_VALUE; + goto _header_again; + case CT_MAP_VALUE: + if(construct_cb(_map_item)(user, c->count, &c->obj, c->map_key, obj) < 0) { goto _failed; } + if(++c->count == c->size) { + obj = c->obj; + if (construct_cb(_map_end)(user, &obj) < 0) { goto _failed; } + --top; + /*printf("stack pop %d\n", top);*/ + goto _push; + } + c->ct = CT_MAP_KEY; + goto _header_again; + + default: + goto _failed; + } + +_header_again: + cs = CS_HEADER; + ++p; + } while(p != pe); + goto _out; + + +_finish: + if (!construct) + unpack_callback_nil(user, &obj); + stack[0].obj = obj; + ++p; + ret = 1; + /*printf("-- finish --\n"); */ + goto _end; + +_failed: + /*printf("** FAILED **\n"); */ + ret = -1; + goto _end; + +_out: + ret = 0; + goto _end; + +_end: + ctx->cs = cs; + ctx->trail = trail; + ctx->top = top; + *off = p - (const unsigned char*)data; + + return ret; +#undef construct_cb +} + +#undef SWITCH_RANGE_BEGIN +#undef SWITCH_RANGE +#undef SWITCH_RANGE_DEFAULT +#undef SWITCH_RANGE_END +#undef push_simple_value +#undef push_fixed_value +#undef push_variable_value +#undef again_fixed_trail +#undef again_fixed_trail_if_zero +#undef start_container + +template +static inline int unpack_container_header(unpack_context* ctx, const char* data, Py_ssize_t len, Py_ssize_t* off) +{ + assert(len >= *off); + uint32_t size; + const unsigned char *const p = (unsigned char*)data + *off; + +#define inc_offset(inc) \ + if (len - *off < inc) \ + return 0; \ + *off += inc; + + switch (*p) { + case var_offset: + inc_offset(3); + size = _msgpack_load16(uint16_t, p + 1); + break; + case var_offset + 1: + inc_offset(5); + size = _msgpack_load32(uint32_t, p + 1); + break; +#ifdef USE_CASE_RANGE + case fixed_offset + 0x0 ... fixed_offset + 0xf: +#else + case fixed_offset + 0x0: + case fixed_offset + 0x1: + case fixed_offset + 0x2: + case fixed_offset + 0x3: + case fixed_offset + 0x4: + case fixed_offset + 0x5: + case fixed_offset + 0x6: + case fixed_offset + 0x7: + case fixed_offset + 0x8: + case fixed_offset + 0x9: + case fixed_offset + 0xa: + case fixed_offset + 0xb: + case fixed_offset + 0xc: + case fixed_offset + 0xd: + case fixed_offset + 0xe: + case fixed_offset + 0xf: +#endif + ++*off; + size = ((unsigned int)*p) & 0x0f; + break; + default: + PyErr_SetString(PyExc_ValueError, "Unexpected type header on stream"); + return -1; + } + unpack_callback_uint32(&ctx->user, size, &ctx->stack[0].obj); + return 1; +} + +#undef SWITCH_RANGE_BEGIN +#undef SWITCH_RANGE +#undef SWITCH_RANGE_DEFAULT +#undef SWITCH_RANGE_END + +static const execute_fn unpack_construct = &unpack_execute; +static const execute_fn unpack_skip = &unpack_execute; +static const execute_fn read_array_header = &unpack_container_header<0x90, 0xdc>; +static const execute_fn read_map_header = &unpack_container_header<0x80, 0xde>; + +#undef NEXT_CS + +/* vim: set ts=4 sw=4 sts=4 expandtab */ diff --git a/ddtrace/vendor/six/__init__.py b/ddtrace/vendor/six/__init__.py new file mode 100644 index 0000000000..52409e85bd --- /dev/null +++ b/ddtrace/vendor/six/__init__.py @@ -0,0 +1,891 @@ +# Copyright (c) 2010-2017 Benjamin Peterson +# +# Permission is hereby granted, free of charge, to any person obtaining a copy +# of this software and associated documentation files (the "Software"), to deal +# in the Software without restriction, including without limitation the rights +# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +# copies of the Software, and to permit persons to whom the Software is +# furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included in all +# copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +# SOFTWARE. + +"""Utilities for writing code that runs on Python 2 and 3""" + +from __future__ import absolute_import + +import functools +import itertools +import operator +import sys +import types + +__author__ = "Benjamin Peterson " +__version__ = "1.11.0" + + +# Useful for very coarse version differentiation. +PY2 = sys.version_info[0] == 2 +PY3 = sys.version_info[0] == 3 +PY34 = sys.version_info[0:2] >= (3, 4) + +if PY3: + string_types = str, + integer_types = int, + class_types = type, + text_type = str + binary_type = bytes + + MAXSIZE = sys.maxsize +else: + string_types = basestring, + integer_types = (int, long) + class_types = (type, types.ClassType) + text_type = unicode + binary_type = str + + if sys.platform.startswith("java"): + # Jython always uses 32 bits. + MAXSIZE = int((1 << 31) - 1) + else: + # It's possible to have sizeof(long) != sizeof(Py_ssize_t). + class X(object): + + def __len__(self): + return 1 << 31 + try: + len(X()) + except OverflowError: + # 32-bit + MAXSIZE = int((1 << 31) - 1) + else: + # 64-bit + MAXSIZE = int((1 << 63) - 1) + del X + + +def _add_doc(func, doc): + """Add documentation to a function.""" + func.__doc__ = doc + + +def _import_module(name): + """Import module, returning the module after the last dot.""" + __import__(name) + return sys.modules[name] + + +class _LazyDescr(object): + + def __init__(self, name): + self.name = name + + def __get__(self, obj, tp): + result = self._resolve() + setattr(obj, self.name, result) # Invokes __set__. + try: + # This is a bit ugly, but it avoids running this again by + # removing this descriptor. + delattr(obj.__class__, self.name) + except AttributeError: + pass + return result + + +class MovedModule(_LazyDescr): + + def __init__(self, name, old, new=None): + super(MovedModule, self).__init__(name) + if PY3: + if new is None: + new = name + self.mod = new + else: + self.mod = old + + def _resolve(self): + return _import_module(self.mod) + + def __getattr__(self, attr): + _module = self._resolve() + value = getattr(_module, attr) + setattr(self, attr, value) + return value + + +class _LazyModule(types.ModuleType): + + def __init__(self, name): + super(_LazyModule, self).__init__(name) + self.__doc__ = self.__class__.__doc__ + + def __dir__(self): + attrs = ["__doc__", "__name__"] + attrs += [attr.name for attr in self._moved_attributes] + return attrs + + # Subclasses should override this + _moved_attributes = [] + + +class MovedAttribute(_LazyDescr): + + def __init__(self, name, old_mod, new_mod, old_attr=None, new_attr=None): + super(MovedAttribute, self).__init__(name) + if PY3: + if new_mod is None: + new_mod = name + self.mod = new_mod + if new_attr is None: + if old_attr is None: + new_attr = name + else: + new_attr = old_attr + self.attr = new_attr + else: + self.mod = old_mod + if old_attr is None: + old_attr = name + self.attr = old_attr + + def _resolve(self): + module = _import_module(self.mod) + return getattr(module, self.attr) + + +class _SixMetaPathImporter(object): + + """ + A meta path importer to import six.moves and its submodules. + + This class implements a PEP302 finder and loader. It should be compatible + with Python 2.5 and all existing versions of Python3 + """ + + def __init__(self, six_module_name): + self.name = six_module_name + self.known_modules = {} + + def _add_module(self, mod, *fullnames): + for fullname in fullnames: + self.known_modules[self.name + "." + fullname] = mod + + def _get_module(self, fullname): + return self.known_modules[self.name + "." + fullname] + + def find_module(self, fullname, path=None): + if fullname in self.known_modules: + return self + return None + + def __get_module(self, fullname): + try: + return self.known_modules[fullname] + except KeyError: + raise ImportError("This loader does not know module " + fullname) + + def load_module(self, fullname): + try: + # in case of a reload + return sys.modules[fullname] + except KeyError: + pass + mod = self.__get_module(fullname) + if isinstance(mod, MovedModule): + mod = mod._resolve() + else: + mod.__loader__ = self + sys.modules[fullname] = mod + return mod + + def is_package(self, fullname): + """ + Return true, if the named module is a package. + + We need this method to get correct spec objects with + Python 3.4 (see PEP451) + """ + return hasattr(self.__get_module(fullname), "__path__") + + def get_code(self, fullname): + """Return None + + Required, if is_package is implemented""" + self.__get_module(fullname) # eventually raises ImportError + return None + get_source = get_code # same as get_code + +_importer = _SixMetaPathImporter(__name__) + + +class _MovedItems(_LazyModule): + + """Lazy loading of moved objects""" + __path__ = [] # mark as package + + +_moved_attributes = [ + MovedAttribute("cStringIO", "cStringIO", "io", "StringIO"), + MovedAttribute("filter", "itertools", "builtins", "ifilter", "filter"), + MovedAttribute("filterfalse", "itertools", "itertools", "ifilterfalse", "filterfalse"), + MovedAttribute("input", "__builtin__", "builtins", "raw_input", "input"), + MovedAttribute("intern", "__builtin__", "sys"), + MovedAttribute("map", "itertools", "builtins", "imap", "map"), + MovedAttribute("getcwd", "os", "os", "getcwdu", "getcwd"), + MovedAttribute("getcwdb", "os", "os", "getcwd", "getcwdb"), + MovedAttribute("getoutput", "commands", "subprocess"), + MovedAttribute("range", "__builtin__", "builtins", "xrange", "range"), + MovedAttribute("reload_module", "__builtin__", "importlib" if PY34 else "imp", "reload"), + MovedAttribute("reduce", "__builtin__", "functools"), + MovedAttribute("shlex_quote", "pipes", "shlex", "quote"), + MovedAttribute("StringIO", "StringIO", "io"), + MovedAttribute("UserDict", "UserDict", "collections"), + MovedAttribute("UserList", "UserList", "collections"), + MovedAttribute("UserString", "UserString", "collections"), + MovedAttribute("xrange", "__builtin__", "builtins", "xrange", "range"), + MovedAttribute("zip", "itertools", "builtins", "izip", "zip"), + MovedAttribute("zip_longest", "itertools", "itertools", "izip_longest", "zip_longest"), + MovedModule("builtins", "__builtin__"), + MovedModule("configparser", "ConfigParser"), + MovedModule("copyreg", "copy_reg"), + MovedModule("dbm_gnu", "gdbm", "dbm.gnu"), + MovedModule("_dummy_thread", "dummy_thread", "_dummy_thread"), + MovedModule("http_cookiejar", "cookielib", "http.cookiejar"), + MovedModule("http_cookies", "Cookie", "http.cookies"), + MovedModule("html_entities", "htmlentitydefs", "html.entities"), + MovedModule("html_parser", "HTMLParser", "html.parser"), + MovedModule("http_client", "httplib", "http.client"), + MovedModule("email_mime_base", "email.MIMEBase", "email.mime.base"), + MovedModule("email_mime_image", "email.MIMEImage", "email.mime.image"), + MovedModule("email_mime_multipart", "email.MIMEMultipart", "email.mime.multipart"), + MovedModule("email_mime_nonmultipart", "email.MIMENonMultipart", "email.mime.nonmultipart"), + MovedModule("email_mime_text", "email.MIMEText", "email.mime.text"), + MovedModule("BaseHTTPServer", "BaseHTTPServer", "http.server"), + MovedModule("CGIHTTPServer", "CGIHTTPServer", "http.server"), + MovedModule("SimpleHTTPServer", "SimpleHTTPServer", "http.server"), + MovedModule("cPickle", "cPickle", "pickle"), + MovedModule("queue", "Queue"), + MovedModule("reprlib", "repr"), + MovedModule("socketserver", "SocketServer"), + MovedModule("_thread", "thread", "_thread"), + MovedModule("tkinter", "Tkinter"), + MovedModule("tkinter_dialog", "Dialog", "tkinter.dialog"), + MovedModule("tkinter_filedialog", "FileDialog", "tkinter.filedialog"), + MovedModule("tkinter_scrolledtext", "ScrolledText", "tkinter.scrolledtext"), + MovedModule("tkinter_simpledialog", "SimpleDialog", "tkinter.simpledialog"), + MovedModule("tkinter_tix", "Tix", "tkinter.tix"), + MovedModule("tkinter_ttk", "ttk", "tkinter.ttk"), + MovedModule("tkinter_constants", "Tkconstants", "tkinter.constants"), + MovedModule("tkinter_dnd", "Tkdnd", "tkinter.dnd"), + MovedModule("tkinter_colorchooser", "tkColorChooser", + "tkinter.colorchooser"), + MovedModule("tkinter_commondialog", "tkCommonDialog", + "tkinter.commondialog"), + MovedModule("tkinter_tkfiledialog", "tkFileDialog", "tkinter.filedialog"), + MovedModule("tkinter_font", "tkFont", "tkinter.font"), + MovedModule("tkinter_messagebox", "tkMessageBox", "tkinter.messagebox"), + MovedModule("tkinter_tksimpledialog", "tkSimpleDialog", + "tkinter.simpledialog"), + MovedModule("urllib_parse", __name__ + ".moves.urllib_parse", "urllib.parse"), + MovedModule("urllib_error", __name__ + ".moves.urllib_error", "urllib.error"), + MovedModule("urllib", __name__ + ".moves.urllib", __name__ + ".moves.urllib"), + MovedModule("urllib_robotparser", "robotparser", "urllib.robotparser"), + MovedModule("xmlrpc_client", "xmlrpclib", "xmlrpc.client"), + MovedModule("xmlrpc_server", "SimpleXMLRPCServer", "xmlrpc.server"), +] +# Add windows specific modules. +if sys.platform == "win32": + _moved_attributes += [ + MovedModule("winreg", "_winreg"), + ] + +for attr in _moved_attributes: + setattr(_MovedItems, attr.name, attr) + if isinstance(attr, MovedModule): + _importer._add_module(attr, "moves." + attr.name) +del attr + +_MovedItems._moved_attributes = _moved_attributes + +moves = _MovedItems(__name__ + ".moves") +_importer._add_module(moves, "moves") + + +class Module_six_moves_urllib_parse(_LazyModule): + + """Lazy loading of moved objects in six.moves.urllib_parse""" + + +_urllib_parse_moved_attributes = [ + MovedAttribute("ParseResult", "urlparse", "urllib.parse"), + MovedAttribute("SplitResult", "urlparse", "urllib.parse"), + MovedAttribute("parse_qs", "urlparse", "urllib.parse"), + MovedAttribute("parse_qsl", "urlparse", "urllib.parse"), + MovedAttribute("urldefrag", "urlparse", "urllib.parse"), + MovedAttribute("urljoin", "urlparse", "urllib.parse"), + MovedAttribute("urlparse", "urlparse", "urllib.parse"), + MovedAttribute("urlsplit", "urlparse", "urllib.parse"), + MovedAttribute("urlunparse", "urlparse", "urllib.parse"), + MovedAttribute("urlunsplit", "urlparse", "urllib.parse"), + MovedAttribute("quote", "urllib", "urllib.parse"), + MovedAttribute("quote_plus", "urllib", "urllib.parse"), + MovedAttribute("unquote", "urllib", "urllib.parse"), + MovedAttribute("unquote_plus", "urllib", "urllib.parse"), + MovedAttribute("unquote_to_bytes", "urllib", "urllib.parse", "unquote", "unquote_to_bytes"), + MovedAttribute("urlencode", "urllib", "urllib.parse"), + MovedAttribute("splitquery", "urllib", "urllib.parse"), + MovedAttribute("splittag", "urllib", "urllib.parse"), + MovedAttribute("splituser", "urllib", "urllib.parse"), + MovedAttribute("splitvalue", "urllib", "urllib.parse"), + MovedAttribute("uses_fragment", "urlparse", "urllib.parse"), + MovedAttribute("uses_netloc", "urlparse", "urllib.parse"), + MovedAttribute("uses_params", "urlparse", "urllib.parse"), + MovedAttribute("uses_query", "urlparse", "urllib.parse"), + MovedAttribute("uses_relative", "urlparse", "urllib.parse"), +] +for attr in _urllib_parse_moved_attributes: + setattr(Module_six_moves_urllib_parse, attr.name, attr) +del attr + +Module_six_moves_urllib_parse._moved_attributes = _urllib_parse_moved_attributes + +_importer._add_module(Module_six_moves_urllib_parse(__name__ + ".moves.urllib_parse"), + "moves.urllib_parse", "moves.urllib.parse") + + +class Module_six_moves_urllib_error(_LazyModule): + + """Lazy loading of moved objects in six.moves.urllib_error""" + + +_urllib_error_moved_attributes = [ + MovedAttribute("URLError", "urllib2", "urllib.error"), + MovedAttribute("HTTPError", "urllib2", "urllib.error"), + MovedAttribute("ContentTooShortError", "urllib", "urllib.error"), +] +for attr in _urllib_error_moved_attributes: + setattr(Module_six_moves_urllib_error, attr.name, attr) +del attr + +Module_six_moves_urllib_error._moved_attributes = _urllib_error_moved_attributes + +_importer._add_module(Module_six_moves_urllib_error(__name__ + ".moves.urllib.error"), + "moves.urllib_error", "moves.urllib.error") + + +class Module_six_moves_urllib_request(_LazyModule): + + """Lazy loading of moved objects in six.moves.urllib_request""" + + +_urllib_request_moved_attributes = [ + MovedAttribute("urlopen", "urllib2", "urllib.request"), + MovedAttribute("install_opener", "urllib2", "urllib.request"), + MovedAttribute("build_opener", "urllib2", "urllib.request"), + MovedAttribute("pathname2url", "urllib", "urllib.request"), + MovedAttribute("url2pathname", "urllib", "urllib.request"), + MovedAttribute("getproxies", "urllib", "urllib.request"), + MovedAttribute("Request", "urllib2", "urllib.request"), + MovedAttribute("OpenerDirector", "urllib2", "urllib.request"), + MovedAttribute("HTTPDefaultErrorHandler", "urllib2", "urllib.request"), + MovedAttribute("HTTPRedirectHandler", "urllib2", "urllib.request"), + MovedAttribute("HTTPCookieProcessor", "urllib2", "urllib.request"), + MovedAttribute("ProxyHandler", "urllib2", "urllib.request"), + MovedAttribute("BaseHandler", "urllib2", "urllib.request"), + MovedAttribute("HTTPPasswordMgr", "urllib2", "urllib.request"), + MovedAttribute("HTTPPasswordMgrWithDefaultRealm", "urllib2", "urllib.request"), + MovedAttribute("AbstractBasicAuthHandler", "urllib2", "urllib.request"), + MovedAttribute("HTTPBasicAuthHandler", "urllib2", "urllib.request"), + MovedAttribute("ProxyBasicAuthHandler", "urllib2", "urllib.request"), + MovedAttribute("AbstractDigestAuthHandler", "urllib2", "urllib.request"), + MovedAttribute("HTTPDigestAuthHandler", "urllib2", "urllib.request"), + MovedAttribute("ProxyDigestAuthHandler", "urllib2", "urllib.request"), + MovedAttribute("HTTPHandler", "urllib2", "urllib.request"), + MovedAttribute("HTTPSHandler", "urllib2", "urllib.request"), + MovedAttribute("FileHandler", "urllib2", "urllib.request"), + MovedAttribute("FTPHandler", "urllib2", "urllib.request"), + MovedAttribute("CacheFTPHandler", "urllib2", "urllib.request"), + MovedAttribute("UnknownHandler", "urllib2", "urllib.request"), + MovedAttribute("HTTPErrorProcessor", "urllib2", "urllib.request"), + MovedAttribute("urlretrieve", "urllib", "urllib.request"), + MovedAttribute("urlcleanup", "urllib", "urllib.request"), + MovedAttribute("URLopener", "urllib", "urllib.request"), + MovedAttribute("FancyURLopener", "urllib", "urllib.request"), + MovedAttribute("proxy_bypass", "urllib", "urllib.request"), + MovedAttribute("parse_http_list", "urllib2", "urllib.request"), + MovedAttribute("parse_keqv_list", "urllib2", "urllib.request"), +] +for attr in _urllib_request_moved_attributes: + setattr(Module_six_moves_urllib_request, attr.name, attr) +del attr + +Module_six_moves_urllib_request._moved_attributes = _urllib_request_moved_attributes + +_importer._add_module(Module_six_moves_urllib_request(__name__ + ".moves.urllib.request"), + "moves.urllib_request", "moves.urllib.request") + + +class Module_six_moves_urllib_response(_LazyModule): + + """Lazy loading of moved objects in six.moves.urllib_response""" + + +_urllib_response_moved_attributes = [ + MovedAttribute("addbase", "urllib", "urllib.response"), + MovedAttribute("addclosehook", "urllib", "urllib.response"), + MovedAttribute("addinfo", "urllib", "urllib.response"), + MovedAttribute("addinfourl", "urllib", "urllib.response"), +] +for attr in _urllib_response_moved_attributes: + setattr(Module_six_moves_urllib_response, attr.name, attr) +del attr + +Module_six_moves_urllib_response._moved_attributes = _urllib_response_moved_attributes + +_importer._add_module(Module_six_moves_urllib_response(__name__ + ".moves.urllib.response"), + "moves.urllib_response", "moves.urllib.response") + + +class Module_six_moves_urllib_robotparser(_LazyModule): + + """Lazy loading of moved objects in six.moves.urllib_robotparser""" + + +_urllib_robotparser_moved_attributes = [ + MovedAttribute("RobotFileParser", "robotparser", "urllib.robotparser"), +] +for attr in _urllib_robotparser_moved_attributes: + setattr(Module_six_moves_urllib_robotparser, attr.name, attr) +del attr + +Module_six_moves_urllib_robotparser._moved_attributes = _urllib_robotparser_moved_attributes + +_importer._add_module(Module_six_moves_urllib_robotparser(__name__ + ".moves.urllib.robotparser"), + "moves.urllib_robotparser", "moves.urllib.robotparser") + + +class Module_six_moves_urllib(types.ModuleType): + + """Create a six.moves.urllib namespace that resembles the Python 3 namespace""" + __path__ = [] # mark as package + parse = _importer._get_module("moves.urllib_parse") + error = _importer._get_module("moves.urllib_error") + request = _importer._get_module("moves.urllib_request") + response = _importer._get_module("moves.urllib_response") + robotparser = _importer._get_module("moves.urllib_robotparser") + + def __dir__(self): + return ['parse', 'error', 'request', 'response', 'robotparser'] + +_importer._add_module(Module_six_moves_urllib(__name__ + ".moves.urllib"), + "moves.urllib") + + +def add_move(move): + """Add an item to six.moves.""" + setattr(_MovedItems, move.name, move) + + +def remove_move(name): + """Remove item from six.moves.""" + try: + delattr(_MovedItems, name) + except AttributeError: + try: + del moves.__dict__[name] + except KeyError: + raise AttributeError("no such move, %r" % (name,)) + + +if PY3: + _meth_func = "__func__" + _meth_self = "__self__" + + _func_closure = "__closure__" + _func_code = "__code__" + _func_defaults = "__defaults__" + _func_globals = "__globals__" +else: + _meth_func = "im_func" + _meth_self = "im_self" + + _func_closure = "func_closure" + _func_code = "func_code" + _func_defaults = "func_defaults" + _func_globals = "func_globals" + + +try: + advance_iterator = next +except NameError: + def advance_iterator(it): + return it.next() +next = advance_iterator + + +try: + callable = callable +except NameError: + def callable(obj): + return any("__call__" in klass.__dict__ for klass in type(obj).__mro__) + + +if PY3: + def get_unbound_function(unbound): + return unbound + + create_bound_method = types.MethodType + + def create_unbound_method(func, cls): + return func + + Iterator = object +else: + def get_unbound_function(unbound): + return unbound.im_func + + def create_bound_method(func, obj): + return types.MethodType(func, obj, obj.__class__) + + def create_unbound_method(func, cls): + return types.MethodType(func, None, cls) + + class Iterator(object): + + def next(self): + return type(self).__next__(self) + + callable = callable +_add_doc(get_unbound_function, + """Get the function out of a possibly unbound function""") + + +get_method_function = operator.attrgetter(_meth_func) +get_method_self = operator.attrgetter(_meth_self) +get_function_closure = operator.attrgetter(_func_closure) +get_function_code = operator.attrgetter(_func_code) +get_function_defaults = operator.attrgetter(_func_defaults) +get_function_globals = operator.attrgetter(_func_globals) + + +if PY3: + def iterkeys(d, **kw): + return iter(d.keys(**kw)) + + def itervalues(d, **kw): + return iter(d.values(**kw)) + + def iteritems(d, **kw): + return iter(d.items(**kw)) + + def iterlists(d, **kw): + return iter(d.lists(**kw)) + + viewkeys = operator.methodcaller("keys") + + viewvalues = operator.methodcaller("values") + + viewitems = operator.methodcaller("items") +else: + def iterkeys(d, **kw): + return d.iterkeys(**kw) + + def itervalues(d, **kw): + return d.itervalues(**kw) + + def iteritems(d, **kw): + return d.iteritems(**kw) + + def iterlists(d, **kw): + return d.iterlists(**kw) + + viewkeys = operator.methodcaller("viewkeys") + + viewvalues = operator.methodcaller("viewvalues") + + viewitems = operator.methodcaller("viewitems") + +_add_doc(iterkeys, "Return an iterator over the keys of a dictionary.") +_add_doc(itervalues, "Return an iterator over the values of a dictionary.") +_add_doc(iteritems, + "Return an iterator over the (key, value) pairs of a dictionary.") +_add_doc(iterlists, + "Return an iterator over the (key, [values]) pairs of a dictionary.") + + +if PY3: + def b(s): + return s.encode("latin-1") + + def u(s): + return s + unichr = chr + import struct + int2byte = struct.Struct(">B").pack + del struct + byte2int = operator.itemgetter(0) + indexbytes = operator.getitem + iterbytes = iter + import io + StringIO = io.StringIO + BytesIO = io.BytesIO + _assertCountEqual = "assertCountEqual" + if sys.version_info[1] <= 1: + _assertRaisesRegex = "assertRaisesRegexp" + _assertRegex = "assertRegexpMatches" + else: + _assertRaisesRegex = "assertRaisesRegex" + _assertRegex = "assertRegex" +else: + def b(s): + return s + # Workaround for standalone backslash + + def u(s): + return unicode(s.replace(r'\\', r'\\\\'), "unicode_escape") + unichr = unichr + int2byte = chr + + def byte2int(bs): + return ord(bs[0]) + + def indexbytes(buf, i): + return ord(buf[i]) + iterbytes = functools.partial(itertools.imap, ord) + import StringIO + StringIO = BytesIO = StringIO.StringIO + _assertCountEqual = "assertItemsEqual" + _assertRaisesRegex = "assertRaisesRegexp" + _assertRegex = "assertRegexpMatches" +_add_doc(b, """Byte literal""") +_add_doc(u, """Text literal""") + + +def assertCountEqual(self, *args, **kwargs): + return getattr(self, _assertCountEqual)(*args, **kwargs) + + +def assertRaisesRegex(self, *args, **kwargs): + return getattr(self, _assertRaisesRegex)(*args, **kwargs) + + +def assertRegex(self, *args, **kwargs): + return getattr(self, _assertRegex)(*args, **kwargs) + + +if PY3: + exec_ = getattr(moves.builtins, "exec") + + def reraise(tp, value, tb=None): + try: + if value is None: + value = tp() + if value.__traceback__ is not tb: + raise value.with_traceback(tb) + raise value + finally: + value = None + tb = None + +else: + def exec_(_code_, _globs_=None, _locs_=None): + """Execute code in a namespace.""" + if _globs_ is None: + frame = sys._getframe(1) + _globs_ = frame.f_globals + if _locs_ is None: + _locs_ = frame.f_locals + del frame + elif _locs_ is None: + _locs_ = _globs_ + exec("""exec _code_ in _globs_, _locs_""") + + exec_("""def reraise(tp, value, tb=None): + try: + raise tp, value, tb + finally: + tb = None +""") + + +if sys.version_info[:2] == (3, 2): + exec_("""def raise_from(value, from_value): + try: + if from_value is None: + raise value + raise value from from_value + finally: + value = None +""") +elif sys.version_info[:2] > (3, 2): + exec_("""def raise_from(value, from_value): + try: + raise value from from_value + finally: + value = None +""") +else: + def raise_from(value, from_value): + raise value + + +print_ = getattr(moves.builtins, "print", None) +if print_ is None: + def print_(*args, **kwargs): + """The new-style print function for Python 2.4 and 2.5.""" + fp = kwargs.pop("file", sys.stdout) + if fp is None: + return + + def write(data): + if not isinstance(data, basestring): + data = str(data) + # If the file has an encoding, encode unicode with it. + if (isinstance(fp, file) and + isinstance(data, unicode) and + fp.encoding is not None): + errors = getattr(fp, "errors", None) + if errors is None: + errors = "strict" + data = data.encode(fp.encoding, errors) + fp.write(data) + want_unicode = False + sep = kwargs.pop("sep", None) + if sep is not None: + if isinstance(sep, unicode): + want_unicode = True + elif not isinstance(sep, str): + raise TypeError("sep must be None or a string") + end = kwargs.pop("end", None) + if end is not None: + if isinstance(end, unicode): + want_unicode = True + elif not isinstance(end, str): + raise TypeError("end must be None or a string") + if kwargs: + raise TypeError("invalid keyword arguments to print()") + if not want_unicode: + for arg in args: + if isinstance(arg, unicode): + want_unicode = True + break + if want_unicode: + newline = unicode("\n") + space = unicode(" ") + else: + newline = "\n" + space = " " + if sep is None: + sep = space + if end is None: + end = newline + for i, arg in enumerate(args): + if i: + write(sep) + write(arg) + write(end) +if sys.version_info[:2] < (3, 3): + _print = print_ + + def print_(*args, **kwargs): + fp = kwargs.get("file", sys.stdout) + flush = kwargs.pop("flush", False) + _print(*args, **kwargs) + if flush and fp is not None: + fp.flush() + +_add_doc(reraise, """Reraise an exception.""") + +if sys.version_info[0:2] < (3, 4): + def wraps(wrapped, assigned=functools.WRAPPER_ASSIGNMENTS, + updated=functools.WRAPPER_UPDATES): + def wrapper(f): + f = functools.wraps(wrapped, assigned, updated)(f) + f.__wrapped__ = wrapped + return f + return wrapper +else: + wraps = functools.wraps + + +def with_metaclass(meta, *bases): + """Create a base class with a metaclass.""" + # This requires a bit of explanation: the basic idea is to make a dummy + # metaclass for one level of class instantiation that replaces itself with + # the actual metaclass. + class metaclass(type): + + def __new__(cls, name, this_bases, d): + return meta(name, bases, d) + + @classmethod + def __prepare__(cls, name, this_bases): + return meta.__prepare__(name, bases) + return type.__new__(metaclass, 'temporary_class', (), {}) + + +def add_metaclass(metaclass): + """Class decorator for creating a class with a metaclass.""" + def wrapper(cls): + orig_vars = cls.__dict__.copy() + slots = orig_vars.get('__slots__') + if slots is not None: + if isinstance(slots, str): + slots = [slots] + for slots_var in slots: + orig_vars.pop(slots_var) + orig_vars.pop('__dict__', None) + orig_vars.pop('__weakref__', None) + return metaclass(cls.__name__, cls.__bases__, orig_vars) + return wrapper + + +def python_2_unicode_compatible(klass): + """ + A decorator that defines __unicode__ and __str__ methods under Python 2. + Under Python 3 it does nothing. + + To support Python 2 and 3 with a single code base, define a __str__ method + returning text and apply this decorator to the class. + """ + if PY2: + if '__str__' not in klass.__dict__: + raise ValueError("@python_2_unicode_compatible cannot be applied " + "to %s because it doesn't define __str__()." % + klass.__name__) + klass.__unicode__ = klass.__str__ + klass.__str__ = lambda self: self.__unicode__().encode('utf-8') + return klass + + +# Complete the moves implementation. +# This code is at the end of this module to speed up module loading. +# Turn this module into a package. +__path__ = [] # required for PEP 302 and PEP 451 +__package__ = __name__ # see PEP 366 @ReservedAssignment +if globals().get("__spec__") is not None: + __spec__.submodule_search_locations = [] # PEP 451 @UndefinedVariable +# Remove other six meta path importers, since they cause problems. This can +# happen if six is removed from sys.modules and then reloaded. (Setuptools does +# this for some reason.) +if sys.meta_path: + for i, importer in enumerate(sys.meta_path): + # Here's some real nastiness: Another "instance" of the six module might + # be floating around. Therefore, we can't use isinstance() to check for + # the six meta path importer, since the other six instance will have + # inserted an importer with different class. + if (type(importer).__name__ == "_SixMetaPathImporter" and + importer.name == __name__): + del sys.meta_path[i] + break + del i, importer +# Finally, add the importer to the meta path import hook. +sys.meta_path.append(_importer) \ No newline at end of file diff --git a/ddtrace/vendor/wrapt/__init__.py b/ddtrace/vendor/wrapt/__init__.py new file mode 100644 index 0000000000..dbfd5b4003 --- /dev/null +++ b/ddtrace/vendor/wrapt/__init__.py @@ -0,0 +1,42 @@ +""" +Copyright (c) 2013-2019, Graham Dumpleton +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + +* Redistributions of source code must retain the above copyright notice, this + list of conditions and the following disclaimer. + +* Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE +LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. +""" +__version_info__ = ('1', '11', '1') +__version__ = '.'.join(__version_info__) + +from .wrappers import (ObjectProxy, CallableObjectProxy, FunctionWrapper, + BoundFunctionWrapper, WeakFunctionProxy, PartialCallableObjectProxy, + resolve_path, apply_patch, wrap_object, wrap_object_attribute, + function_wrapper, wrap_function_wrapper, patch_function_wrapper, + transient_function_wrapper) + +from .decorators import (adapter_factory, AdapterFactory, decorator, + synchronized) + +from .importer import (register_post_import_hook, when_imported, + notify_module_loaded, discover_post_import_hooks) + +from inspect import getcallargs diff --git a/ddtrace/vendor/wrapt/_wrappers.c b/ddtrace/vendor/wrapt/_wrappers.c new file mode 100644 index 0000000000..0569a5a7f9 --- /dev/null +++ b/ddtrace/vendor/wrapt/_wrappers.c @@ -0,0 +1,3066 @@ +/* ------------------------------------------------------------------------- */ + +#include "Python.h" + +#include "structmember.h" + +#ifndef PyVarObject_HEAD_INIT +#define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size, +#endif + +/* ------------------------------------------------------------------------- */ + +typedef struct { + PyObject_HEAD + + PyObject *dict; + PyObject *wrapped; + PyObject *weakreflist; +} WraptObjectProxyObject; + +PyTypeObject WraptObjectProxy_Type; +PyTypeObject WraptCallableObjectProxy_Type; + +typedef struct { + WraptObjectProxyObject object_proxy; + + PyObject *args; + PyObject *kwargs; +} WraptPartialCallableObjectProxyObject; + +PyTypeObject WraptPartialCallableObjectProxy_Type; + +typedef struct { + WraptObjectProxyObject object_proxy; + + PyObject *instance; + PyObject *wrapper; + PyObject *enabled; + PyObject *binding; + PyObject *parent; +} WraptFunctionWrapperObject; + +PyTypeObject WraptFunctionWrapperBase_Type; +PyTypeObject WraptBoundFunctionWrapper_Type; +PyTypeObject WraptFunctionWrapper_Type; + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_new(PyTypeObject *type, + PyObject *args, PyObject *kwds) +{ + WraptObjectProxyObject *self; + + self = (WraptObjectProxyObject *)type->tp_alloc(type, 0); + + if (!self) + return NULL; + + self->dict = PyDict_New(); + self->wrapped = NULL; + self->weakreflist = NULL; + + return (PyObject *)self; +} + +/* ------------------------------------------------------------------------- */ + +static int WraptObjectProxy_raw_init(WraptObjectProxyObject *self, + PyObject *wrapped) +{ + static PyObject *module_str = NULL; + static PyObject *doc_str = NULL; + + PyObject *object = NULL; + + Py_INCREF(wrapped); + Py_XDECREF(self->wrapped); + self->wrapped = wrapped; + + if (!module_str) { +#if PY_MAJOR_VERSION >= 3 + module_str = PyUnicode_InternFromString("__module__"); +#else + module_str = PyString_InternFromString("__module__"); +#endif + } + + if (!doc_str) { +#if PY_MAJOR_VERSION >= 3 + doc_str = PyUnicode_InternFromString("__doc__"); +#else + doc_str = PyString_InternFromString("__doc__"); +#endif + } + + object = PyObject_GetAttr(wrapped, module_str); + + if (object) { + if (PyDict_SetItem(self->dict, module_str, object) == -1) { + Py_DECREF(object); + return -1; + } + Py_DECREF(object); + } + else + PyErr_Clear(); + + object = PyObject_GetAttr(wrapped, doc_str); + + if (object) { + if (PyDict_SetItem(self->dict, doc_str, object) == -1) { + Py_DECREF(object); + return -1; + } + Py_DECREF(object); + } + else + PyErr_Clear(); + + return 0; +} + +/* ------------------------------------------------------------------------- */ + +static int WraptObjectProxy_init(WraptObjectProxyObject *self, + PyObject *args, PyObject *kwds) +{ + PyObject *wrapped = NULL; + + static char *kwlist[] = { "wrapped", NULL }; + + if (!PyArg_ParseTupleAndKeywords(args, kwds, "O:ObjectProxy", + kwlist, &wrapped)) { + return -1; + } + + return WraptObjectProxy_raw_init(self, wrapped); +} + +/* ------------------------------------------------------------------------- */ + +static int WraptObjectProxy_traverse(WraptObjectProxyObject *self, + visitproc visit, void *arg) +{ + Py_VISIT(self->dict); + Py_VISIT(self->wrapped); + + return 0; +} + +/* ------------------------------------------------------------------------- */ + +static int WraptObjectProxy_clear(WraptObjectProxyObject *self) +{ + Py_CLEAR(self->dict); + Py_CLEAR(self->wrapped); + + return 0; +} + +/* ------------------------------------------------------------------------- */ + +static void WraptObjectProxy_dealloc(WraptObjectProxyObject *self) +{ + PyObject_GC_UnTrack(self); + + if (self->weakreflist != NULL) + PyObject_ClearWeakRefs((PyObject *)self); + + WraptObjectProxy_clear(self); + + Py_TYPE(self)->tp_free(self); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_repr(WraptObjectProxyObject *self) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + +#if PY_MAJOR_VERSION >= 3 + return PyUnicode_FromFormat("<%s at %p for %s at %p>", + Py_TYPE(self)->tp_name, self, + Py_TYPE(self->wrapped)->tp_name, self->wrapped); +#else + return PyString_FromFormat("<%s at %p for %s at %p>", + Py_TYPE(self)->tp_name, self, + Py_TYPE(self->wrapped)->tp_name, self->wrapped); +#endif +} + +/* ------------------------------------------------------------------------- */ + +#if PY_MAJOR_VERSION < 3 || (PY_MAJOR_VERSION == 3 && PY_MINOR_VERSION < 3) +typedef long Py_hash_t; +#endif + +static Py_hash_t WraptObjectProxy_hash(WraptObjectProxyObject *self) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return -1; + } + + return PyObject_Hash(self->wrapped); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_str(WraptObjectProxyObject *self) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + return PyObject_Str(self->wrapped); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_add(PyObject *o1, PyObject *o2) +{ + if (PyObject_IsInstance(o1, (PyObject *)&WraptObjectProxy_Type)) { + if (!((WraptObjectProxyObject *)o1)->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + o1 = ((WraptObjectProxyObject *)o1)->wrapped; + } + + if (PyObject_IsInstance(o2, (PyObject *)&WraptObjectProxy_Type)) { + if (!((WraptObjectProxyObject *)o2)->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + o2 = ((WraptObjectProxyObject *)o2)->wrapped; + } + + return PyNumber_Add(o1, o2); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_subtract(PyObject *o1, PyObject *o2) +{ + if (PyObject_IsInstance(o1, (PyObject *)&WraptObjectProxy_Type)) { + if (!((WraptObjectProxyObject *)o1)->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + o1 = ((WraptObjectProxyObject *)o1)->wrapped; + } + + if (PyObject_IsInstance(o2, (PyObject *)&WraptObjectProxy_Type)) { + if (!((WraptObjectProxyObject *)o2)->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + o2 = ((WraptObjectProxyObject *)o2)->wrapped; + } + + + return PyNumber_Subtract(o1, o2); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_multiply(PyObject *o1, PyObject *o2) +{ + if (PyObject_IsInstance(o1, (PyObject *)&WraptObjectProxy_Type)) { + if (!((WraptObjectProxyObject *)o1)->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + o1 = ((WraptObjectProxyObject *)o1)->wrapped; + } + + if (PyObject_IsInstance(o2, (PyObject *)&WraptObjectProxy_Type)) { + if (!((WraptObjectProxyObject *)o2)->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + o2 = ((WraptObjectProxyObject *)o2)->wrapped; + } + + return PyNumber_Multiply(o1, o2); +} + +/* ------------------------------------------------------------------------- */ + +#if PY_MAJOR_VERSION < 3 +static PyObject *WraptObjectProxy_divide(PyObject *o1, PyObject *o2) +{ + if (PyObject_IsInstance(o1, (PyObject *)&WraptObjectProxy_Type)) { + if (!((WraptObjectProxyObject *)o1)->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + o1 = ((WraptObjectProxyObject *)o1)->wrapped; + } + + if (PyObject_IsInstance(o2, (PyObject *)&WraptObjectProxy_Type)) { + if (!((WraptObjectProxyObject *)o2)->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + o2 = ((WraptObjectProxyObject *)o2)->wrapped; + } + + return PyNumber_Divide(o1, o2); +} +#endif + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_remainder(PyObject *o1, PyObject *o2) +{ + if (PyObject_IsInstance(o1, (PyObject *)&WraptObjectProxy_Type)) { + if (!((WraptObjectProxyObject *)o1)->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + o1 = ((WraptObjectProxyObject *)o1)->wrapped; + } + + if (PyObject_IsInstance(o2, (PyObject *)&WraptObjectProxy_Type)) { + if (!((WraptObjectProxyObject *)o2)->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + o2 = ((WraptObjectProxyObject *)o2)->wrapped; + } + + return PyNumber_Remainder(o1, o2); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_divmod(PyObject *o1, PyObject *o2) +{ + if (PyObject_IsInstance(o1, (PyObject *)&WraptObjectProxy_Type)) { + if (!((WraptObjectProxyObject *)o1)->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + o1 = ((WraptObjectProxyObject *)o1)->wrapped; + } + + if (PyObject_IsInstance(o2, (PyObject *)&WraptObjectProxy_Type)) { + if (!((WraptObjectProxyObject *)o2)->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + o2 = ((WraptObjectProxyObject *)o2)->wrapped; + } + + return PyNumber_Divmod(o1, o2); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_power(PyObject *o1, PyObject *o2, + PyObject *modulo) +{ + if (PyObject_IsInstance(o1, (PyObject *)&WraptObjectProxy_Type)) { + if (!((WraptObjectProxyObject *)o1)->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + o1 = ((WraptObjectProxyObject *)o1)->wrapped; + } + + if (PyObject_IsInstance(o2, (PyObject *)&WraptObjectProxy_Type)) { + if (!((WraptObjectProxyObject *)o2)->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + o2 = ((WraptObjectProxyObject *)o2)->wrapped; + } + + return PyNumber_Power(o1, o2, modulo); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_negative(WraptObjectProxyObject *self) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + return PyNumber_Negative(self->wrapped); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_positive(WraptObjectProxyObject *self) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + return PyNumber_Positive(self->wrapped); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_absolute(WraptObjectProxyObject *self) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + return PyNumber_Absolute(self->wrapped); +} + +/* ------------------------------------------------------------------------- */ + +static int WraptObjectProxy_bool(WraptObjectProxyObject *self) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return -1; + } + + return PyObject_IsTrue(self->wrapped); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_invert(WraptObjectProxyObject *self) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + return PyNumber_Invert(self->wrapped); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_lshift(PyObject *o1, PyObject *o2) +{ + if (PyObject_IsInstance(o1, (PyObject *)&WraptObjectProxy_Type)) { + if (!((WraptObjectProxyObject *)o1)->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + o1 = ((WraptObjectProxyObject *)o1)->wrapped; + } + + if (PyObject_IsInstance(o2, (PyObject *)&WraptObjectProxy_Type)) { + if (!((WraptObjectProxyObject *)o2)->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + o2 = ((WraptObjectProxyObject *)o2)->wrapped; + } + + return PyNumber_Lshift(o1, o2); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_rshift(PyObject *o1, PyObject *o2) +{ + if (PyObject_IsInstance(o1, (PyObject *)&WraptObjectProxy_Type)) { + if (!((WraptObjectProxyObject *)o1)->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + o1 = ((WraptObjectProxyObject *)o1)->wrapped; + } + + if (PyObject_IsInstance(o2, (PyObject *)&WraptObjectProxy_Type)) { + if (!((WraptObjectProxyObject *)o2)->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + o2 = ((WraptObjectProxyObject *)o2)->wrapped; + } + + return PyNumber_Rshift(o1, o2); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_and(PyObject *o1, PyObject *o2) +{ + if (PyObject_IsInstance(o1, (PyObject *)&WraptObjectProxy_Type)) { + if (!((WraptObjectProxyObject *)o1)->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + o1 = ((WraptObjectProxyObject *)o1)->wrapped; + } + + if (PyObject_IsInstance(o2, (PyObject *)&WraptObjectProxy_Type)) { + if (!((WraptObjectProxyObject *)o2)->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + o2 = ((WraptObjectProxyObject *)o2)->wrapped; + } + + return PyNumber_And(o1, o2); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_xor(PyObject *o1, PyObject *o2) +{ + if (PyObject_IsInstance(o1, (PyObject *)&WraptObjectProxy_Type)) { + if (!((WraptObjectProxyObject *)o1)->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + o1 = ((WraptObjectProxyObject *)o1)->wrapped; + } + + if (PyObject_IsInstance(o2, (PyObject *)&WraptObjectProxy_Type)) { + if (!((WraptObjectProxyObject *)o2)->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + o2 = ((WraptObjectProxyObject *)o2)->wrapped; + } + + return PyNumber_Xor(o1, o2); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_or(PyObject *o1, PyObject *o2) +{ + if (PyObject_IsInstance(o1, (PyObject *)&WraptObjectProxy_Type)) { + if (!((WraptObjectProxyObject *)o1)->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + o1 = ((WraptObjectProxyObject *)o1)->wrapped; + } + + if (PyObject_IsInstance(o2, (PyObject *)&WraptObjectProxy_Type)) { + if (!((WraptObjectProxyObject *)o2)->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + o2 = ((WraptObjectProxyObject *)o2)->wrapped; + } + + return PyNumber_Or(o1, o2); +} + +/* ------------------------------------------------------------------------- */ + +#if PY_MAJOR_VERSION < 3 +static PyObject *WraptObjectProxy_int(WraptObjectProxyObject *self) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + return PyNumber_Int(self->wrapped); +} +#endif + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_long(WraptObjectProxyObject *self) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + return PyNumber_Long(self->wrapped); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_float(WraptObjectProxyObject *self) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + return PyNumber_Float(self->wrapped); +} + +/* ------------------------------------------------------------------------- */ + +#if PY_MAJOR_VERSION < 3 +static PyObject *WraptObjectProxy_oct(WraptObjectProxyObject *self) +{ + PyNumberMethods *nb; + + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + if ((nb = self->wrapped->ob_type->tp_as_number) == NULL || + nb->nb_oct == NULL) { + PyErr_SetString(PyExc_TypeError, + "oct() argument can't be converted to oct"); + return NULL; + } + + return (*nb->nb_oct)(self->wrapped); +} +#endif + +/* ------------------------------------------------------------------------- */ + +#if PY_MAJOR_VERSION < 3 +static PyObject *WraptObjectProxy_hex(WraptObjectProxyObject *self) +{ + PyNumberMethods *nb; + + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + if ((nb = self->wrapped->ob_type->tp_as_number) == NULL || + nb->nb_hex == NULL) { + PyErr_SetString(PyExc_TypeError, + "hex() argument can't be converted to hex"); + return NULL; + } + + return (*nb->nb_hex)(self->wrapped); +} +#endif + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_inplace_add(WraptObjectProxyObject *self, + PyObject *other) +{ + PyObject *object = NULL; + + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + if (PyObject_IsInstance(other, (PyObject *)&WraptObjectProxy_Type)) + other = ((WraptObjectProxyObject *)other)->wrapped; + + object = PyNumber_InPlaceAdd(self->wrapped, other); + + if (!object) + return NULL; + + Py_DECREF(self->wrapped); + self->wrapped = object; + + Py_INCREF(self); + return (PyObject *)self; +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_inplace_subtract( + WraptObjectProxyObject *self, PyObject *other) +{ + PyObject *object = NULL; + + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + if (PyObject_IsInstance(other, (PyObject *)&WraptObjectProxy_Type)) + other = ((WraptObjectProxyObject *)other)->wrapped; + + object = PyNumber_InPlaceSubtract(self->wrapped, other); + + if (!object) + return NULL; + + Py_DECREF(self->wrapped); + self->wrapped = object; + + Py_INCREF(self); + return (PyObject *)self; +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_inplace_multiply( + WraptObjectProxyObject *self, PyObject *other) +{ + PyObject *object = NULL; + + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + if (PyObject_IsInstance(other, (PyObject *)&WraptObjectProxy_Type)) + other = ((WraptObjectProxyObject *)other)->wrapped; + + object = PyNumber_InPlaceMultiply(self->wrapped, other); + + if (!object) + return NULL; + + Py_DECREF(self->wrapped); + self->wrapped = object; + + Py_INCREF(self); + return (PyObject *)self; +} + +/* ------------------------------------------------------------------------- */ + +#if PY_MAJOR_VERSION < 3 +static PyObject *WraptObjectProxy_inplace_divide( + WraptObjectProxyObject *self, PyObject *other) +{ + PyObject *object = NULL; + + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + if (PyObject_IsInstance(other, (PyObject *)&WraptObjectProxy_Type)) + other = ((WraptObjectProxyObject *)other)->wrapped; + + object = PyNumber_InPlaceDivide(self->wrapped, other); + + if (!object) + return NULL; + + Py_DECREF(self->wrapped); + self->wrapped = object; + + Py_INCREF(self); + return (PyObject *)self; +} +#endif + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_inplace_remainder( + WraptObjectProxyObject *self, PyObject *other) +{ + PyObject *object = NULL; + + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + if (PyObject_IsInstance(other, (PyObject *)&WraptObjectProxy_Type)) + other = ((WraptObjectProxyObject *)other)->wrapped; + + object = PyNumber_InPlaceRemainder(self->wrapped, other); + + if (!object) + return NULL; + + Py_DECREF(self->wrapped); + self->wrapped = object; + + Py_INCREF(self); + return (PyObject *)self; +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_inplace_power(WraptObjectProxyObject *self, + PyObject *other, PyObject *modulo) +{ + PyObject *object = NULL; + + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + if (PyObject_IsInstance(other, (PyObject *)&WraptObjectProxy_Type)) + other = ((WraptObjectProxyObject *)other)->wrapped; + + object = PyNumber_InPlacePower(self->wrapped, other, modulo); + + if (!object) + return NULL; + + Py_DECREF(self->wrapped); + self->wrapped = object; + + Py_INCREF(self); + return (PyObject *)self; +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_inplace_lshift(WraptObjectProxyObject *self, + PyObject *other) +{ + PyObject *object = NULL; + + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + if (PyObject_IsInstance(other, (PyObject *)&WraptObjectProxy_Type)) + other = ((WraptObjectProxyObject *)other)->wrapped; + + object = PyNumber_InPlaceLshift(self->wrapped, other); + + if (!object) + return NULL; + + Py_DECREF(self->wrapped); + self->wrapped = object; + + Py_INCREF(self); + return (PyObject *)self; +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_inplace_rshift(WraptObjectProxyObject *self, + PyObject *other) +{ + PyObject *object = NULL; + + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + if (PyObject_IsInstance(other, (PyObject *)&WraptObjectProxy_Type)) + other = ((WraptObjectProxyObject *)other)->wrapped; + + object = PyNumber_InPlaceRshift(self->wrapped, other); + + if (!object) + return NULL; + + Py_DECREF(self->wrapped); + self->wrapped = object; + + Py_INCREF(self); + return (PyObject *)self; +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_inplace_and(WraptObjectProxyObject *self, + PyObject *other) +{ + PyObject *object = NULL; + + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + if (PyObject_IsInstance(other, (PyObject *)&WraptObjectProxy_Type)) + other = ((WraptObjectProxyObject *)other)->wrapped; + + object = PyNumber_InPlaceAnd(self->wrapped, other); + + if (!object) + return NULL; + + Py_DECREF(self->wrapped); + self->wrapped = object; + + Py_INCREF(self); + return (PyObject *)self; +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_inplace_xor(WraptObjectProxyObject *self, + PyObject *other) +{ + PyObject *object = NULL; + + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + if (PyObject_IsInstance(other, (PyObject *)&WraptObjectProxy_Type)) + other = ((WraptObjectProxyObject *)other)->wrapped; + + object = PyNumber_InPlaceXor(self->wrapped, other); + + if (!object) + return NULL; + + Py_DECREF(self->wrapped); + self->wrapped = object; + + Py_INCREF(self); + return (PyObject *)self; +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_inplace_or(WraptObjectProxyObject *self, + PyObject *other) +{ + PyObject *object = NULL; + + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + if (PyObject_IsInstance(other, (PyObject *)&WraptObjectProxy_Type)) + other = ((WraptObjectProxyObject *)other)->wrapped; + + object = PyNumber_InPlaceOr(self->wrapped, other); + + if (!object) + return NULL; + + Py_DECREF(self->wrapped); + self->wrapped = object; + + Py_INCREF(self); + return (PyObject *)self; +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_floor_divide(PyObject *o1, PyObject *o2) +{ + if (PyObject_IsInstance(o1, (PyObject *)&WraptObjectProxy_Type)) { + if (!((WraptObjectProxyObject *)o1)->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + o1 = ((WraptObjectProxyObject *)o1)->wrapped; + } + + if (PyObject_IsInstance(o2, (PyObject *)&WraptObjectProxy_Type)) { + if (!((WraptObjectProxyObject *)o2)->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + o2 = ((WraptObjectProxyObject *)o2)->wrapped; + } + + return PyNumber_FloorDivide(o1, o2); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_true_divide(PyObject *o1, PyObject *o2) +{ + if (PyObject_IsInstance(o1, (PyObject *)&WraptObjectProxy_Type)) { + if (!((WraptObjectProxyObject *)o1)->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + o1 = ((WraptObjectProxyObject *)o1)->wrapped; + } + + if (PyObject_IsInstance(o2, (PyObject *)&WraptObjectProxy_Type)) { + if (!((WraptObjectProxyObject *)o2)->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + o2 = ((WraptObjectProxyObject *)o2)->wrapped; + } + + return PyNumber_TrueDivide(o1, o2); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_inplace_floor_divide( + WraptObjectProxyObject *self, PyObject *other) +{ + PyObject *object = NULL; + + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + if (PyObject_IsInstance(other, (PyObject *)&WraptObjectProxy_Type)) + other = ((WraptObjectProxyObject *)other)->wrapped; + + object = PyNumber_InPlaceFloorDivide(self->wrapped, other); + + if (!object) + return NULL; + + Py_DECREF(self->wrapped); + self->wrapped = object; + + Py_INCREF(self); + return (PyObject *)self; +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_inplace_true_divide( + WraptObjectProxyObject *self, PyObject *other) +{ + PyObject *object = NULL; + + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + if (PyObject_IsInstance(other, (PyObject *)&WraptObjectProxy_Type)) + other = ((WraptObjectProxyObject *)other)->wrapped; + + object = PyNumber_InPlaceTrueDivide(self->wrapped, other); + + if (!object) + return NULL; + + Py_DECREF(self->wrapped); + self->wrapped = object; + + Py_INCREF(self); + return (PyObject *)self; +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_index(WraptObjectProxyObject *self) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + return PyNumber_Index(self->wrapped); +} + +/* ------------------------------------------------------------------------- */ + +static Py_ssize_t WraptObjectProxy_length(WraptObjectProxyObject *self) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return -1; + } + + return PyObject_Length(self->wrapped); +} + +/* ------------------------------------------------------------------------- */ + +static int WraptObjectProxy_contains(WraptObjectProxyObject *self, + PyObject *value) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return -1; + } + + return PySequence_Contains(self->wrapped, value); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_getitem(WraptObjectProxyObject *self, + PyObject *key) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + return PyObject_GetItem(self->wrapped, key); +} + +/* ------------------------------------------------------------------------- */ + +static int WraptObjectProxy_setitem(WraptObjectProxyObject *self, + PyObject *key, PyObject* value) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return -1; + } + + if (value == NULL) + return PyObject_DelItem(self->wrapped, key); + else + return PyObject_SetItem(self->wrapped, key, value); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_dir( + WraptObjectProxyObject *self, PyObject *args) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + return PyObject_Dir(self->wrapped); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_enter( + WraptObjectProxyObject *self, PyObject *args, PyObject *kwds) +{ + PyObject *method = NULL; + PyObject *result = NULL; + + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + method = PyObject_GetAttrString(self->wrapped, "__enter__"); + + if (!method) + return NULL; + + result = PyObject_Call(method, args, kwds); + + Py_DECREF(method); + + return result; +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_exit( + WraptObjectProxyObject *self, PyObject *args, PyObject *kwds) +{ + PyObject *method = NULL; + PyObject *result = NULL; + + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + method = PyObject_GetAttrString(self->wrapped, "__exit__"); + + if (!method) + return NULL; + + result = PyObject_Call(method, args, kwds); + + Py_DECREF(method); + + return result; +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_copy( + WraptObjectProxyObject *self, PyObject *args, PyObject *kwds) +{ + PyErr_SetString(PyExc_NotImplementedError, + "object proxy must define __copy__()"); + + return NULL; +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_deepcopy( + WraptObjectProxyObject *self, PyObject *args, PyObject *kwds) +{ + PyErr_SetString(PyExc_NotImplementedError, + "object proxy must define __deepcopy__()"); + + return NULL; +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_reduce( + WraptObjectProxyObject *self, PyObject *args, PyObject *kwds) +{ + PyErr_SetString(PyExc_NotImplementedError, + "object proxy must define __reduce_ex__()"); + + return NULL; +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_reduce_ex( + WraptObjectProxyObject *self, PyObject *args, PyObject *kwds) +{ + PyErr_SetString(PyExc_NotImplementedError, + "object proxy must define __reduce_ex__()"); + + return NULL; +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_bytes( + WraptObjectProxyObject *self, PyObject *args) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + return PyObject_Bytes(self->wrapped); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_reversed( + WraptObjectProxyObject *self, PyObject *args) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + return PyObject_CallFunctionObjArgs((PyObject *)&PyReversed_Type, + self->wrapped, NULL); +} + +/* ------------------------------------------------------------------------- */ + +#if PY_MAJOR_VERSION >= 3 +static PyObject *WraptObjectProxy_round( + WraptObjectProxyObject *self, PyObject *args) +{ + PyObject *module = NULL; + PyObject *dict = NULL; + PyObject *round = NULL; + + PyObject *result = NULL; + + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + module = PyImport_ImportModule("builtins"); + + if (!module) + return NULL; + + dict = PyModule_GetDict(module); + round = PyDict_GetItemString(dict, "round"); + + if (!round) { + Py_DECREF(module); + return NULL; + } + + Py_INCREF(round); + Py_DECREF(module); + + result = PyObject_CallFunctionObjArgs(round, self->wrapped, NULL); + + Py_DECREF(round); + + return result; +} +#endif + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_complex( + WraptObjectProxyObject *self, PyObject *args) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + return PyObject_CallFunctionObjArgs((PyObject *)&PyComplex_Type, + self->wrapped, NULL); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_get_name( + WraptObjectProxyObject *self) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + return PyObject_GetAttrString(self->wrapped, "__name__"); +} + +/* ------------------------------------------------------------------------- */ + +static int WraptObjectProxy_set_name(WraptObjectProxyObject *self, + PyObject *value) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return -1; + } + + return PyObject_SetAttrString(self->wrapped, "__name__", value); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_get_qualname( + WraptObjectProxyObject *self) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + return PyObject_GetAttrString(self->wrapped, "__qualname__"); +} + +/* ------------------------------------------------------------------------- */ + +static int WraptObjectProxy_set_qualname(WraptObjectProxyObject *self, + PyObject *value) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return -1; + } + + return PyObject_SetAttrString(self->wrapped, "__qualname__", value); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_get_module( + WraptObjectProxyObject *self) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + return PyObject_GetAttrString(self->wrapped, "__module__"); +} + +/* ------------------------------------------------------------------------- */ + +static int WraptObjectProxy_set_module(WraptObjectProxyObject *self, + PyObject *value) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return -1; + } + + if (PyObject_SetAttrString(self->wrapped, "__module__", value) == -1) + return -1; + + return PyDict_SetItemString(self->dict, "__module__", value); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_get_doc( + WraptObjectProxyObject *self) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + return PyObject_GetAttrString(self->wrapped, "__doc__"); +} + +/* ------------------------------------------------------------------------- */ + +static int WraptObjectProxy_set_doc(WraptObjectProxyObject *self, + PyObject *value) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return -1; + } + + if (PyObject_SetAttrString(self->wrapped, "__doc__", value) == -1) + return -1; + + return PyDict_SetItemString(self->dict, "__doc__", value); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_get_class( + WraptObjectProxyObject *self) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + return PyObject_GetAttrString(self->wrapped, "__class__"); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_get_annotations( + WraptObjectProxyObject *self) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + return PyObject_GetAttrString(self->wrapped, "__annotations__"); +} + +/* ------------------------------------------------------------------------- */ + +static int WraptObjectProxy_set_annotations(WraptObjectProxyObject *self, + PyObject *value) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return -1; + } + + return PyObject_SetAttrString(self->wrapped, "__annotations__", value); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_get_wrapped( + WraptObjectProxyObject *self) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + Py_INCREF(self->wrapped); + return self->wrapped; +} + +/* ------------------------------------------------------------------------- */ + +static int WraptObjectProxy_set_wrapped(WraptObjectProxyObject *self, + PyObject *value) +{ + if (!value) { + PyErr_SetString(PyExc_TypeError, "__wrapped__ must be an object"); + return -1; + } + + Py_INCREF(value); + Py_XDECREF(self->wrapped); + + self->wrapped = value; + + return 0; +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_getattro( + WraptObjectProxyObject *self, PyObject *name) +{ + PyObject *object = NULL; + PyObject *result = NULL; + + static PyObject *getattr_str = NULL; + + object = PyObject_GenericGetAttr((PyObject *)self, name); + + if (object) + return object; + + PyErr_Clear(); + + if (!getattr_str) { +#if PY_MAJOR_VERSION >= 3 + getattr_str = PyUnicode_InternFromString("__getattr__"); +#else + getattr_str = PyString_InternFromString("__getattr__"); +#endif + } + + object = PyObject_GenericGetAttr((PyObject *)self, getattr_str); + + if (!object) + return NULL; + + result = PyObject_CallFunctionObjArgs(object, name, NULL); + + Py_DECREF(object); + + return result; +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_getattr( + WraptObjectProxyObject *self, PyObject *args) +{ + PyObject *name = NULL; + +#if PY_MAJOR_VERSION >= 3 + if (!PyArg_ParseTuple(args, "U:__getattr__", &name)) + return NULL; +#else + if (!PyArg_ParseTuple(args, "S:__getattr__", &name)) + return NULL; +#endif + + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + return PyObject_GetAttr(self->wrapped, name); +} + +/* ------------------------------------------------------------------------- */ + +static int WraptObjectProxy_setattro( + WraptObjectProxyObject *self, PyObject *name, PyObject *value) +{ + static PyObject *self_str = NULL; + static PyObject *wrapped_str = NULL; + static PyObject *startswith_str = NULL; + + PyObject *match = NULL; + + if (!startswith_str) { +#if PY_MAJOR_VERSION >= 3 + startswith_str = PyUnicode_InternFromString("startswith"); +#else + startswith_str = PyString_InternFromString("startswith"); +#endif + } + + if (!self_str) { +#if PY_MAJOR_VERSION >= 3 + self_str = PyUnicode_InternFromString("_self_"); +#else + self_str = PyString_InternFromString("_self_"); +#endif + } + + match = PyObject_CallMethodObjArgs(name, startswith_str, self_str, NULL); + + if (match == Py_True) { + Py_DECREF(match); + + return PyObject_GenericSetAttr((PyObject *)self, name, value); + } + else if (!match) + PyErr_Clear(); + + Py_XDECREF(match); + + if (!wrapped_str) { +#if PY_MAJOR_VERSION >= 3 + wrapped_str = PyUnicode_InternFromString("__wrapped__"); +#else + wrapped_str = PyString_InternFromString("__wrapped__"); +#endif + } + + if (PyObject_HasAttr((PyObject *)Py_TYPE(self), name)) + return PyObject_GenericSetAttr((PyObject *)self, name, value); + + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return -1; + } + + return PyObject_SetAttr(self->wrapped, name, value); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_richcompare(WraptObjectProxyObject *self, + PyObject *other, int opcode) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + return PyObject_RichCompare(self->wrapped, other, opcode); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptObjectProxy_iter(WraptObjectProxyObject *self) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + return PyObject_GetIter(self->wrapped); +} + +/* ------------------------------------------------------------------------- */ + +static PyNumberMethods WraptObjectProxy_as_number = { + (binaryfunc)WraptObjectProxy_add, /*nb_add*/ + (binaryfunc)WraptObjectProxy_subtract, /*nb_subtract*/ + (binaryfunc)WraptObjectProxy_multiply, /*nb_multiply*/ +#if PY_MAJOR_VERSION < 3 + (binaryfunc)WraptObjectProxy_divide, /*nb_divide*/ +#endif + (binaryfunc)WraptObjectProxy_remainder, /*nb_remainder*/ + (binaryfunc)WraptObjectProxy_divmod, /*nb_divmod*/ + (ternaryfunc)WraptObjectProxy_power, /*nb_power*/ + (unaryfunc)WraptObjectProxy_negative, /*nb_negative*/ + (unaryfunc)WraptObjectProxy_positive, /*nb_positive*/ + (unaryfunc)WraptObjectProxy_absolute, /*nb_absolute*/ + (inquiry)WraptObjectProxy_bool, /*nb_nonzero/nb_bool*/ + (unaryfunc)WraptObjectProxy_invert, /*nb_invert*/ + (binaryfunc)WraptObjectProxy_lshift, /*nb_lshift*/ + (binaryfunc)WraptObjectProxy_rshift, /*nb_rshift*/ + (binaryfunc)WraptObjectProxy_and, /*nb_and*/ + (binaryfunc)WraptObjectProxy_xor, /*nb_xor*/ + (binaryfunc)WraptObjectProxy_or, /*nb_or*/ +#if PY_MAJOR_VERSION < 3 + 0, /*nb_coerce*/ +#endif +#if PY_MAJOR_VERSION < 3 + (unaryfunc)WraptObjectProxy_int, /*nb_int*/ + (unaryfunc)WraptObjectProxy_long, /*nb_long*/ +#else + (unaryfunc)WraptObjectProxy_long, /*nb_int*/ + 0, /*nb_long/nb_reserved*/ +#endif + (unaryfunc)WraptObjectProxy_float, /*nb_float*/ +#if PY_MAJOR_VERSION < 3 + (unaryfunc)WraptObjectProxy_oct, /*nb_oct*/ + (unaryfunc)WraptObjectProxy_hex, /*nb_hex*/ +#endif + (binaryfunc)WraptObjectProxy_inplace_add, /*nb_inplace_add*/ + (binaryfunc)WraptObjectProxy_inplace_subtract, /*nb_inplace_subtract*/ + (binaryfunc)WraptObjectProxy_inplace_multiply, /*nb_inplace_multiply*/ +#if PY_MAJOR_VERSION < 3 + (binaryfunc)WraptObjectProxy_inplace_divide, /*nb_inplace_divide*/ +#endif + (binaryfunc)WraptObjectProxy_inplace_remainder, /*nb_inplace_remainder*/ + (ternaryfunc)WraptObjectProxy_inplace_power, /*nb_inplace_power*/ + (binaryfunc)WraptObjectProxy_inplace_lshift, /*nb_inplace_lshift*/ + (binaryfunc)WraptObjectProxy_inplace_rshift, /*nb_inplace_rshift*/ + (binaryfunc)WraptObjectProxy_inplace_and, /*nb_inplace_and*/ + (binaryfunc)WraptObjectProxy_inplace_xor, /*nb_inplace_xor*/ + (binaryfunc)WraptObjectProxy_inplace_or, /*nb_inplace_or*/ + (binaryfunc)WraptObjectProxy_floor_divide, /*nb_floor_divide*/ + (binaryfunc)WraptObjectProxy_true_divide, /*nb_true_divide*/ + (binaryfunc)WraptObjectProxy_inplace_floor_divide, /*nb_inplace_floor_divide*/ + (binaryfunc)WraptObjectProxy_inplace_true_divide, /*nb_inplace_true_divide*/ + (unaryfunc)WraptObjectProxy_index, /*nb_index*/ +}; + +static PySequenceMethods WraptObjectProxy_as_sequence = { + (lenfunc)WraptObjectProxy_length, /*sq_length*/ + 0, /*sq_concat*/ + 0, /*sq_repeat*/ + 0, /*sq_item*/ + 0, /*sq_slice*/ + 0, /*sq_ass_item*/ + 0, /*sq_ass_slice*/ + (objobjproc)WraptObjectProxy_contains, /* sq_contains */ +}; + +static PyMappingMethods WraptObjectProxy_as_mapping = { + (lenfunc)WraptObjectProxy_length, /*mp_length*/ + (binaryfunc)WraptObjectProxy_getitem, /*mp_subscript*/ + (objobjargproc)WraptObjectProxy_setitem, /*mp_ass_subscript*/ +}; + +static PyMethodDef WraptObjectProxy_methods[] = { + { "__dir__", (PyCFunction)WraptObjectProxy_dir, METH_NOARGS, 0 }, + { "__enter__", (PyCFunction)WraptObjectProxy_enter, + METH_VARARGS | METH_KEYWORDS, 0 }, + { "__exit__", (PyCFunction)WraptObjectProxy_exit, + METH_VARARGS | METH_KEYWORDS, 0 }, + { "__copy__", (PyCFunction)WraptObjectProxy_copy, + METH_NOARGS, 0 }, + { "__deepcopy__", (PyCFunction)WraptObjectProxy_deepcopy, + METH_VARARGS | METH_KEYWORDS, 0 }, + { "__reduce__", (PyCFunction)WraptObjectProxy_reduce, + METH_NOARGS, 0 }, + { "__reduce_ex__", (PyCFunction)WraptObjectProxy_reduce_ex, + METH_VARARGS | METH_KEYWORDS, 0 }, + { "__getattr__", (PyCFunction)WraptObjectProxy_getattr, + METH_VARARGS , 0 }, + { "__bytes__", (PyCFunction)WraptObjectProxy_bytes, METH_NOARGS, 0 }, + { "__reversed__", (PyCFunction)WraptObjectProxy_reversed, METH_NOARGS, 0 }, +#if PY_MAJOR_VERSION >= 3 + { "__round__", (PyCFunction)WraptObjectProxy_round, METH_NOARGS, 0 }, +#endif + { "__complex__", (PyCFunction)WraptObjectProxy_complex, METH_NOARGS, 0 }, + { NULL, NULL }, +}; + +static PyGetSetDef WraptObjectProxy_getset[] = { + { "__name__", (getter)WraptObjectProxy_get_name, + (setter)WraptObjectProxy_set_name, 0 }, + { "__qualname__", (getter)WraptObjectProxy_get_qualname, + (setter)WraptObjectProxy_set_qualname, 0 }, + { "__module__", (getter)WraptObjectProxy_get_module, + (setter)WraptObjectProxy_set_module, 0 }, + { "__doc__", (getter)WraptObjectProxy_get_doc, + (setter)WraptObjectProxy_set_doc, 0 }, + { "__class__", (getter)WraptObjectProxy_get_class, + NULL, 0 }, + { "__annotations__", (getter)WraptObjectProxy_get_annotations, + (setter)WraptObjectProxy_set_annotations, 0 }, + { "__wrapped__", (getter)WraptObjectProxy_get_wrapped, + (setter)WraptObjectProxy_set_wrapped, 0 }, + { NULL }, +}; + +PyTypeObject WraptObjectProxy_Type = { + PyVarObject_HEAD_INIT(NULL, 0) + "ObjectProxy", /*tp_name*/ + sizeof(WraptObjectProxyObject), /*tp_basicsize*/ + 0, /*tp_itemsize*/ + /* methods */ + (destructor)WraptObjectProxy_dealloc, /*tp_dealloc*/ + 0, /*tp_print*/ + 0, /*tp_getattr*/ + 0, /*tp_setattr*/ + 0, /*tp_compare*/ + (unaryfunc)WraptObjectProxy_repr, /*tp_repr*/ + &WraptObjectProxy_as_number, /*tp_as_number*/ + &WraptObjectProxy_as_sequence, /*tp_as_sequence*/ + &WraptObjectProxy_as_mapping, /*tp_as_mapping*/ + (hashfunc)WraptObjectProxy_hash, /*tp_hash*/ + 0, /*tp_call*/ + (unaryfunc)WraptObjectProxy_str, /*tp_str*/ + (getattrofunc)WraptObjectProxy_getattro, /*tp_getattro*/ + (setattrofunc)WraptObjectProxy_setattro, /*tp_setattro*/ + 0, /*tp_as_buffer*/ +#if PY_MAJOR_VERSION < 3 + Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | + Py_TPFLAGS_HAVE_GC | Py_TPFLAGS_CHECKTYPES, /*tp_flags*/ +#else + Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | + Py_TPFLAGS_HAVE_GC, /*tp_flags*/ +#endif + 0, /*tp_doc*/ + (traverseproc)WraptObjectProxy_traverse, /*tp_traverse*/ + (inquiry)WraptObjectProxy_clear, /*tp_clear*/ + (richcmpfunc)WraptObjectProxy_richcompare, /*tp_richcompare*/ + offsetof(WraptObjectProxyObject, weakreflist), /*tp_weaklistoffset*/ + (getiterfunc)WraptObjectProxy_iter, /*tp_iter*/ + 0, /*tp_iternext*/ + WraptObjectProxy_methods, /*tp_methods*/ + 0, /*tp_members*/ + WraptObjectProxy_getset, /*tp_getset*/ + 0, /*tp_base*/ + 0, /*tp_dict*/ + 0, /*tp_descr_get*/ + 0, /*tp_descr_set*/ + offsetof(WraptObjectProxyObject, dict), /*tp_dictoffset*/ + (initproc)WraptObjectProxy_init, /*tp_init*/ + PyType_GenericAlloc, /*tp_alloc*/ + WraptObjectProxy_new, /*tp_new*/ + PyObject_GC_Del, /*tp_free*/ + 0, /*tp_is_gc*/ +}; + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptCallableObjectProxy_call( + WraptObjectProxyObject *self, PyObject *args, PyObject *kwds) +{ + if (!self->wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + return PyObject_Call(self->wrapped, args, kwds); +} + +/* ------------------------------------------------------------------------- */; + +static PyGetSetDef WraptCallableObjectProxy_getset[] = { + { "__module__", (getter)WraptObjectProxy_get_module, + (setter)WraptObjectProxy_set_module, 0 }, + { "__doc__", (getter)WraptObjectProxy_get_doc, + (setter)WraptObjectProxy_set_doc, 0 }, + { NULL }, +}; + +PyTypeObject WraptCallableObjectProxy_Type = { + PyVarObject_HEAD_INIT(NULL, 0) + "CallableObjectProxy", /*tp_name*/ + sizeof(WraptObjectProxyObject), /*tp_basicsize*/ + 0, /*tp_itemsize*/ + /* methods */ + 0, /*tp_dealloc*/ + 0, /*tp_print*/ + 0, /*tp_getattr*/ + 0, /*tp_setattr*/ + 0, /*tp_compare*/ + 0, /*tp_repr*/ + 0, /*tp_as_number*/ + 0, /*tp_as_sequence*/ + 0, /*tp_as_mapping*/ + 0, /*tp_hash*/ + (ternaryfunc)WraptCallableObjectProxy_call, /*tp_call*/ + 0, /*tp_str*/ + 0, /*tp_getattro*/ + 0, /*tp_setattro*/ + 0, /*tp_as_buffer*/ +#if PY_MAJOR_VERSION < 3 + Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_CHECKTYPES, /*tp_flags*/ +#else + Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/ +#endif + 0, /*tp_doc*/ + 0, /*tp_traverse*/ + 0, /*tp_clear*/ + 0, /*tp_richcompare*/ + offsetof(WraptObjectProxyObject, weakreflist), /*tp_weaklistoffset*/ + 0, /*tp_iter*/ + 0, /*tp_iternext*/ + 0, /*tp_methods*/ + 0, /*tp_members*/ + WraptCallableObjectProxy_getset, /*tp_getset*/ + 0, /*tp_base*/ + 0, /*tp_dict*/ + 0, /*tp_descr_get*/ + 0, /*tp_descr_set*/ + 0, /*tp_dictoffset*/ + (initproc)WraptObjectProxy_init, /*tp_init*/ + 0, /*tp_alloc*/ + 0, /*tp_new*/ + 0, /*tp_free*/ + 0, /*tp_is_gc*/ +}; + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptPartialCallableObjectProxy_new(PyTypeObject *type, + PyObject *args, PyObject *kwds) +{ + WraptPartialCallableObjectProxyObject *self; + + self = (WraptPartialCallableObjectProxyObject *)WraptObjectProxy_new(type, + args, kwds); + + if (!self) + return NULL; + + self->args = NULL; + self->kwargs = NULL; + + return (PyObject *)self; +} + +/* ------------------------------------------------------------------------- */ + +static int WraptPartialCallableObjectProxy_raw_init( + WraptPartialCallableObjectProxyObject *self, + PyObject *wrapped, PyObject *args, PyObject *kwargs) +{ + int result = 0; + + result = WraptObjectProxy_raw_init((WraptObjectProxyObject *)self, + wrapped); + + if (result == 0) { + Py_INCREF(args); + Py_XDECREF(self->args); + self->args = args; + + Py_XINCREF(kwargs); + Py_XDECREF(self->kwargs); + self->kwargs = kwargs; + } + + return result; +} + +/* ------------------------------------------------------------------------- */ + +static int WraptPartialCallableObjectProxy_init( + WraptPartialCallableObjectProxyObject *self, PyObject *args, + PyObject *kwds) +{ + PyObject *wrapped = NULL; + PyObject *fnargs = NULL; + + int result = 0; + + if (!PyObject_Length(args)) { + PyErr_SetString(PyExc_TypeError, + "__init__ of partial needs an argument"); + return -1; + } + + if (PyObject_Length(args) < 1) { + PyErr_SetString(PyExc_TypeError, + "partial type takes at least one argument"); + return -1; + } + + wrapped = PyTuple_GetItem(args, 0); + + if (!PyCallable_Check(wrapped)) { + PyErr_SetString(PyExc_TypeError, + "the first argument must be callable"); + return -1; + } + + fnargs = PyTuple_GetSlice(args, 1, PyTuple_Size(args)); + + if (!fnargs) + return -1; + + result = WraptPartialCallableObjectProxy_raw_init(self, wrapped, + fnargs, kwds); + + Py_DECREF(fnargs); + + return result; +} + +/* ------------------------------------------------------------------------- */ + +static int WraptPartialCallableObjectProxy_traverse( + WraptPartialCallableObjectProxyObject *self, + visitproc visit, void *arg) +{ + WraptObjectProxy_traverse((WraptObjectProxyObject *)self, visit, arg); + + Py_VISIT(self->args); + Py_VISIT(self->kwargs); + + return 0; +} + +/* ------------------------------------------------------------------------- */ + +static int WraptPartialCallableObjectProxy_clear( + WraptPartialCallableObjectProxyObject *self) +{ + WraptObjectProxy_clear((WraptObjectProxyObject *)self); + + Py_CLEAR(self->args); + Py_CLEAR(self->kwargs); + + return 0; +} + +/* ------------------------------------------------------------------------- */ + +static void WraptPartialCallableObjectProxy_dealloc( + WraptPartialCallableObjectProxyObject *self) +{ + WraptPartialCallableObjectProxy_clear(self); + + WraptObjectProxy_dealloc((WraptObjectProxyObject *)self); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptPartialCallableObjectProxy_call( + WraptPartialCallableObjectProxyObject *self, PyObject *args, + PyObject *kwds) +{ + PyObject *fnargs = NULL; + PyObject *fnkwargs = NULL; + + PyObject *result = NULL; + + long i; + long offset; + + if (!self->object_proxy.wrapped) { + PyErr_SetString(PyExc_ValueError, "wrapper has not been initialized"); + return NULL; + } + + fnargs = PyTuple_New(PyTuple_Size(self->args)+PyTuple_Size(args)); + + for (i=0; iargs); i++) { + PyObject *item; + item = PyTuple_GetItem(self->args, i); + Py_INCREF(item); + PyTuple_SetItem(fnargs, i, item); + } + + offset = PyTuple_Size(self->args); + + for (i=0; ikwargs && PyDict_Update(fnkwargs, self->kwargs) == -1) { + Py_DECREF(fnargs); + Py_DECREF(fnkwargs); + return NULL; + } + + if (kwds && PyDict_Update(fnkwargs, kwds) == -1) { + Py_DECREF(fnargs); + Py_DECREF(fnkwargs); + return NULL; + } + + result = PyObject_Call(self->object_proxy.wrapped, + fnargs, fnkwargs); + + Py_DECREF(fnargs); + Py_DECREF(fnkwargs); + + return result; +} + +/* ------------------------------------------------------------------------- */; + +static PyGetSetDef WraptPartialCallableObjectProxy_getset[] = { + { "__module__", (getter)WraptObjectProxy_get_module, + (setter)WraptObjectProxy_set_module, 0 }, + { "__doc__", (getter)WraptObjectProxy_get_doc, + (setter)WraptObjectProxy_set_doc, 0 }, + { NULL }, +}; + +PyTypeObject WraptPartialCallableObjectProxy_Type = { + PyVarObject_HEAD_INIT(NULL, 0) + "PartialCallableObjectProxy", /*tp_name*/ + sizeof(WraptPartialCallableObjectProxyObject), /*tp_basicsize*/ + 0, /*tp_itemsize*/ + /* methods */ + (destructor)WraptPartialCallableObjectProxy_dealloc, /*tp_dealloc*/ + 0, /*tp_print*/ + 0, /*tp_getattr*/ + 0, /*tp_setattr*/ + 0, /*tp_compare*/ + 0, /*tp_repr*/ + 0, /*tp_as_number*/ + 0, /*tp_as_sequence*/ + 0, /*tp_as_mapping*/ + 0, /*tp_hash*/ + (ternaryfunc)WraptPartialCallableObjectProxy_call, /*tp_call*/ + 0, /*tp_str*/ + 0, /*tp_getattro*/ + 0, /*tp_setattro*/ + 0, /*tp_as_buffer*/ +#if PY_MAJOR_VERSION < 3 + Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | + Py_TPFLAGS_HAVE_GC | Py_TPFLAGS_CHECKTYPES, /*tp_flags*/ +#else + Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | + Py_TPFLAGS_HAVE_GC, /*tp_flags*/ +#endif + 0, /*tp_doc*/ + (traverseproc)WraptPartialCallableObjectProxy_traverse, /*tp_traverse*/ + (inquiry)WraptPartialCallableObjectProxy_clear, /*tp_clear*/ + 0, /*tp_richcompare*/ + offsetof(WraptObjectProxyObject, weakreflist), /*tp_weaklistoffset*/ + 0, /*tp_iter*/ + 0, /*tp_iternext*/ + 0, /*tp_methods*/ + 0, /*tp_members*/ + WraptPartialCallableObjectProxy_getset, /*tp_getset*/ + 0, /*tp_base*/ + 0, /*tp_dict*/ + 0, /*tp_descr_get*/ + 0, /*tp_descr_set*/ + 0, /*tp_dictoffset*/ + (initproc)WraptPartialCallableObjectProxy_init, /*tp_init*/ + 0, /*tp_alloc*/ + WraptPartialCallableObjectProxy_new, /*tp_new*/ + 0, /*tp_free*/ + 0, /*tp_is_gc*/ +}; + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptFunctionWrapperBase_new(PyTypeObject *type, + PyObject *args, PyObject *kwds) +{ + WraptFunctionWrapperObject *self; + + self = (WraptFunctionWrapperObject *)WraptObjectProxy_new(type, + args, kwds); + + if (!self) + return NULL; + + self->instance = NULL; + self->wrapper = NULL; + self->enabled = NULL; + self->binding = NULL; + self->parent = NULL; + + return (PyObject *)self; +} + +/* ------------------------------------------------------------------------- */ + +static int WraptFunctionWrapperBase_raw_init(WraptFunctionWrapperObject *self, + PyObject *wrapped, PyObject *instance, PyObject *wrapper, + PyObject *enabled, PyObject *binding, PyObject *parent) +{ + int result = 0; + + result = WraptObjectProxy_raw_init((WraptObjectProxyObject *)self, + wrapped); + + if (result == 0) { + Py_INCREF(instance); + Py_XDECREF(self->instance); + self->instance = instance; + + Py_INCREF(wrapper); + Py_XDECREF(self->wrapper); + self->wrapper = wrapper; + + Py_INCREF(enabled); + Py_XDECREF(self->enabled); + self->enabled = enabled; + + Py_INCREF(binding); + Py_XDECREF(self->binding); + self->binding = binding; + + Py_INCREF(parent); + Py_XDECREF(self->parent); + self->parent = parent; + } + + return result; +} + +/* ------------------------------------------------------------------------- */ + +static int WraptFunctionWrapperBase_init(WraptFunctionWrapperObject *self, + PyObject *args, PyObject *kwds) +{ + PyObject *wrapped = NULL; + PyObject *instance = NULL; + PyObject *wrapper = NULL; + PyObject *enabled = Py_None; + PyObject *binding = NULL; + PyObject *parent = Py_None; + + static PyObject *function_str = NULL; + + static char *kwlist[] = { "wrapped", "instance", "wrapper", + "enabled", "binding", "parent", NULL }; + + if (!function_str) { +#if PY_MAJOR_VERSION >= 3 + function_str = PyUnicode_InternFromString("function"); +#else + function_str = PyString_InternFromString("function"); +#endif + } + + if (!PyArg_ParseTupleAndKeywords(args, kwds, + "OOO|OOO:FunctionWrapperBase", kwlist, &wrapped, &instance, + &wrapper, &enabled, &binding, &parent)) { + return -1; + } + + if (!binding) + binding = function_str; + + return WraptFunctionWrapperBase_raw_init(self, wrapped, instance, wrapper, + enabled, binding, parent); +} + +/* ------------------------------------------------------------------------- */ + +static int WraptFunctionWrapperBase_traverse(WraptFunctionWrapperObject *self, + visitproc visit, void *arg) +{ + WraptObjectProxy_traverse((WraptObjectProxyObject *)self, visit, arg); + + Py_VISIT(self->instance); + Py_VISIT(self->wrapper); + Py_VISIT(self->enabled); + Py_VISIT(self->binding); + Py_VISIT(self->parent); + + return 0; +} + +/* ------------------------------------------------------------------------- */ + +static int WraptFunctionWrapperBase_clear(WraptFunctionWrapperObject *self) +{ + WraptObjectProxy_clear((WraptObjectProxyObject *)self); + + Py_CLEAR(self->instance); + Py_CLEAR(self->wrapper); + Py_CLEAR(self->enabled); + Py_CLEAR(self->binding); + Py_CLEAR(self->parent); + + return 0; +} + +/* ------------------------------------------------------------------------- */ + +static void WraptFunctionWrapperBase_dealloc(WraptFunctionWrapperObject *self) +{ + WraptFunctionWrapperBase_clear(self); + + WraptObjectProxy_dealloc((WraptObjectProxyObject *)self); +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptFunctionWrapperBase_call( + WraptFunctionWrapperObject *self, PyObject *args, PyObject *kwds) +{ + PyObject *param_kwds = NULL; + + PyObject *result = NULL; + + static PyObject *function_str = NULL; + + if (!function_str) { +#if PY_MAJOR_VERSION >= 3 + function_str = PyUnicode_InternFromString("function"); +#else + function_str = PyString_InternFromString("function"); +#endif + } + + if (self->enabled != Py_None) { + if (PyCallable_Check(self->enabled)) { + PyObject *object = NULL; + + object = PyObject_CallFunctionObjArgs(self->enabled, NULL); + + if (!object) + return NULL; + + if (PyObject_Not(object)) { + Py_DECREF(object); + return PyObject_Call(self->object_proxy.wrapped, args, kwds); + } + + Py_DECREF(object); + } + else if (PyObject_Not(self->enabled)) { + return PyObject_Call(self->object_proxy.wrapped, args, kwds); + } + } + + if (!kwds) { + param_kwds = PyDict_New(); + kwds = param_kwds; + } + + if (self->instance == Py_None && (self->binding == function_str || + PyObject_RichCompareBool(self->binding, function_str, + Py_EQ) == 1)) { + + PyObject *instance = NULL; + + instance = PyObject_GetAttrString(self->object_proxy.wrapped, + "__self__"); + + if (instance) { + result = PyObject_CallFunctionObjArgs(self->wrapper, + self->object_proxy.wrapped, instance, args, kwds, NULL); + + Py_XDECREF(param_kwds); + + Py_DECREF(instance); + + return result; + } + else + PyErr_Clear(); + } + + result = PyObject_CallFunctionObjArgs(self->wrapper, + self->object_proxy.wrapped, self->instance, args, kwds, NULL); + + Py_XDECREF(param_kwds); + + return result; +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptFunctionWrapperBase_descr_get( + WraptFunctionWrapperObject *self, PyObject *obj, PyObject *type) +{ + PyObject *bound_type = NULL; + PyObject *descriptor = NULL; + PyObject *result = NULL; + + static PyObject *bound_type_str = NULL; + static PyObject *function_str = NULL; + + if (!bound_type_str) { +#if PY_MAJOR_VERSION >= 3 + bound_type_str = PyUnicode_InternFromString( + "__bound_function_wrapper__"); +#else + bound_type_str = PyString_InternFromString( + "__bound_function_wrapper__"); +#endif + } + + if (!function_str) { +#if PY_MAJOR_VERSION >= 3 + function_str = PyUnicode_InternFromString("function"); +#else + function_str = PyString_InternFromString("function"); +#endif + } + + if (self->parent == Py_None) { +#if PY_MAJOR_VERSION < 3 + if (PyObject_IsInstance(self->object_proxy.wrapped, + (PyObject *)&PyClass_Type) || PyObject_IsInstance( + self->object_proxy.wrapped, (PyObject *)&PyType_Type)) { + Py_INCREF(self); + return (PyObject *)self; + } +#else + if (PyObject_IsInstance(self->object_proxy.wrapped, + (PyObject *)&PyType_Type)) { + Py_INCREF(self); + return (PyObject *)self; + } +#endif + + if (Py_TYPE(self->object_proxy.wrapped)->tp_descr_get == NULL) { + PyErr_Format(PyExc_AttributeError, + "'%s' object has no attribute '__get__'", + Py_TYPE(self->object_proxy.wrapped)->tp_name); + return NULL; + } + + descriptor = (Py_TYPE(self->object_proxy.wrapped)->tp_descr_get)( + self->object_proxy.wrapped, obj, type); + + if (!descriptor) + return NULL; + + if (Py_TYPE(self) != &WraptFunctionWrapper_Type) { + bound_type = PyObject_GenericGetAttr((PyObject *)self, + bound_type_str); + + if (!bound_type) + PyErr_Clear(); + } + + if (obj == NULL) + obj = Py_None; + + result = PyObject_CallFunctionObjArgs(bound_type ? bound_type : + (PyObject *)&WraptBoundFunctionWrapper_Type, descriptor, + obj, self->wrapper, self->enabled, self->binding, + self, NULL); + + Py_XDECREF(bound_type); + Py_DECREF(descriptor); + + return result; + } + + if (self->instance == Py_None && (self->binding == function_str || + PyObject_RichCompareBool(self->binding, function_str, + Py_EQ) == 1)) { + + PyObject *wrapped = NULL; + + static PyObject *wrapped_str = NULL; + + if (!wrapped_str) { +#if PY_MAJOR_VERSION >= 3 + wrapped_str = PyUnicode_InternFromString("__wrapped__"); +#else + wrapped_str = PyString_InternFromString("__wrapped__"); +#endif + } + + wrapped = PyObject_GetAttr(self->parent, wrapped_str); + + if (!wrapped) + return NULL; + + if (Py_TYPE(wrapped)->tp_descr_get == NULL) { + PyErr_Format(PyExc_AttributeError, + "'%s' object has no attribute '__get__'", + Py_TYPE(wrapped)->tp_name); + Py_DECREF(wrapped); + return NULL; + } + + descriptor = (Py_TYPE(wrapped)->tp_descr_get)(wrapped, obj, type); + + Py_DECREF(wrapped); + + if (!descriptor) + return NULL; + + if (Py_TYPE(self->parent) != &WraptFunctionWrapper_Type) { + bound_type = PyObject_GenericGetAttr((PyObject *)self->parent, + bound_type_str); + + if (!bound_type) + PyErr_Clear(); + } + + if (obj == NULL) + obj = Py_None; + + result = PyObject_CallFunctionObjArgs(bound_type ? bound_type : + (PyObject *)&WraptBoundFunctionWrapper_Type, descriptor, + obj, self->wrapper, self->enabled, self->binding, + self->parent, NULL); + + Py_XDECREF(bound_type); + Py_DECREF(descriptor); + + return result; + } + + Py_INCREF(self); + return (PyObject *)self; +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptFunctionWrapperBase_get_self_instance( + WraptFunctionWrapperObject *self, void *closure) +{ + if (!self->instance) { + Py_INCREF(Py_None); + return Py_None; + } + + Py_INCREF(self->instance); + return self->instance; +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptFunctionWrapperBase_get_self_wrapper( + WraptFunctionWrapperObject *self, void *closure) +{ + if (!self->wrapper) { + Py_INCREF(Py_None); + return Py_None; + } + + Py_INCREF(self->wrapper); + return self->wrapper; +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptFunctionWrapperBase_get_self_enabled( + WraptFunctionWrapperObject *self, void *closure) +{ + if (!self->enabled) { + Py_INCREF(Py_None); + return Py_None; + } + + Py_INCREF(self->enabled); + return self->enabled; +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptFunctionWrapperBase_get_self_binding( + WraptFunctionWrapperObject *self, void *closure) +{ + if (!self->binding) { + Py_INCREF(Py_None); + return Py_None; + } + + Py_INCREF(self->binding); + return self->binding; +} + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptFunctionWrapperBase_get_self_parent( + WraptFunctionWrapperObject *self, void *closure) +{ + if (!self->parent) { + Py_INCREF(Py_None); + return Py_None; + } + + Py_INCREF(self->parent); + return self->parent; +} + +/* ------------------------------------------------------------------------- */; + +static PyGetSetDef WraptFunctionWrapperBase_getset[] = { + { "__module__", (getter)WraptObjectProxy_get_module, + (setter)WraptObjectProxy_set_module, 0 }, + { "__doc__", (getter)WraptObjectProxy_get_doc, + (setter)WraptObjectProxy_set_doc, 0 }, + { "_self_instance", (getter)WraptFunctionWrapperBase_get_self_instance, + NULL, 0 }, + { "_self_wrapper", (getter)WraptFunctionWrapperBase_get_self_wrapper, + NULL, 0 }, + { "_self_enabled", (getter)WraptFunctionWrapperBase_get_self_enabled, + NULL, 0 }, + { "_self_binding", (getter)WraptFunctionWrapperBase_get_self_binding, + NULL, 0 }, + { "_self_parent", (getter)WraptFunctionWrapperBase_get_self_parent, + NULL, 0 }, + { NULL }, +}; + +PyTypeObject WraptFunctionWrapperBase_Type = { + PyVarObject_HEAD_INIT(NULL, 0) + "_FunctionWrapperBase", /*tp_name*/ + sizeof(WraptFunctionWrapperObject), /*tp_basicsize*/ + 0, /*tp_itemsize*/ + /* methods */ + (destructor)WraptFunctionWrapperBase_dealloc, /*tp_dealloc*/ + 0, /*tp_print*/ + 0, /*tp_getattr*/ + 0, /*tp_setattr*/ + 0, /*tp_compare*/ + 0, /*tp_repr*/ + 0, /*tp_as_number*/ + 0, /*tp_as_sequence*/ + 0, /*tp_as_mapping*/ + 0, /*tp_hash*/ + (ternaryfunc)WraptFunctionWrapperBase_call, /*tp_call*/ + 0, /*tp_str*/ + 0, /*tp_getattro*/ + 0, /*tp_setattro*/ + 0, /*tp_as_buffer*/ +#if PY_MAJOR_VERSION < 3 + Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | + Py_TPFLAGS_HAVE_GC | Py_TPFLAGS_CHECKTYPES, /*tp_flags*/ +#else + Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | + Py_TPFLAGS_HAVE_GC, /*tp_flags*/ +#endif + 0, /*tp_doc*/ + (traverseproc)WraptFunctionWrapperBase_traverse, /*tp_traverse*/ + (inquiry)WraptFunctionWrapperBase_clear, /*tp_clear*/ + 0, /*tp_richcompare*/ + offsetof(WraptObjectProxyObject, weakreflist), /*tp_weaklistoffset*/ + 0, /*tp_iter*/ + 0, /*tp_iternext*/ + 0, /*tp_methods*/ + 0, /*tp_members*/ + WraptFunctionWrapperBase_getset, /*tp_getset*/ + 0, /*tp_base*/ + 0, /*tp_dict*/ + (descrgetfunc)WraptFunctionWrapperBase_descr_get, /*tp_descr_get*/ + 0, /*tp_descr_set*/ + 0, /*tp_dictoffset*/ + (initproc)WraptFunctionWrapperBase_init, /*tp_init*/ + 0, /*tp_alloc*/ + WraptFunctionWrapperBase_new, /*tp_new*/ + 0, /*tp_free*/ + 0, /*tp_is_gc*/ +}; + +/* ------------------------------------------------------------------------- */ + +static PyObject *WraptBoundFunctionWrapper_call( + WraptFunctionWrapperObject *self, PyObject *args, PyObject *kwds) +{ + PyObject *param_args = NULL; + PyObject *param_kwds = NULL; + + PyObject *wrapped = NULL; + PyObject *instance = NULL; + + PyObject *result = NULL; + + static PyObject *function_str = NULL; + + if (self->enabled != Py_None) { + if (PyCallable_Check(self->enabled)) { + PyObject *object = NULL; + + object = PyObject_CallFunctionObjArgs(self->enabled, NULL); + + if (!object) + return NULL; + + if (PyObject_Not(object)) { + Py_DECREF(object); + return PyObject_Call(self->object_proxy.wrapped, args, kwds); + } + + Py_DECREF(object); + } + else if (PyObject_Not(self->enabled)) { + return PyObject_Call(self->object_proxy.wrapped, args, kwds); + } + } + + if (!function_str) { +#if PY_MAJOR_VERSION >= 3 + function_str = PyUnicode_InternFromString("function"); +#else + function_str = PyString_InternFromString("function"); +#endif + } + + /* + * We need to do things different depending on whether we are likely + * wrapping an instance method vs a static method or class method. + */ + + if (self->binding == function_str || PyObject_RichCompareBool( + self->binding, function_str, Py_EQ) == 1) { + + if (self->instance == Py_None) { + /* + * This situation can occur where someone is calling the + * instancemethod via the class type and passing the + * instance as the first argument. We need to shift the args + * before making the call to the wrapper and effectively + * bind the instance to the wrapped function using a partial + * so the wrapper doesn't see anything as being different. + */ + + if (PyTuple_Size(args) == 0) { + PyErr_SetString(PyExc_TypeError, + "missing 1 required positional argument"); + return NULL; + } + + instance = PyTuple_GetItem(args, 0); + + if (!instance) + return NULL; + + wrapped = PyObject_CallFunctionObjArgs( + (PyObject *)&WraptPartialCallableObjectProxy_Type, + self->object_proxy.wrapped, instance, NULL); + + if (!wrapped) + return NULL; + + param_args = PyTuple_GetSlice(args, 1, PyTuple_Size(args)); + + if (!param_args) { + Py_DECREF(wrapped); + return NULL; + } + + args = param_args; + } + else + instance = self->instance; + + if (!wrapped) { + Py_INCREF(self->object_proxy.wrapped); + wrapped = self->object_proxy.wrapped; + } + + if (!kwds) { + param_kwds = PyDict_New(); + kwds = param_kwds; + } + + result = PyObject_CallFunctionObjArgs(self->wrapper, wrapped, + instance, args, kwds, NULL); + + Py_XDECREF(param_args); + Py_XDECREF(param_kwds); + Py_DECREF(wrapped); + + return result; + } + else { + /* + * As in this case we would be dealing with a classmethod or + * staticmethod, then _self_instance will only tell us whether + * when calling the classmethod or staticmethod they did it via + * an instance of the class it is bound to and not the case + * where done by the class type itself. We thus ignore + * _self_instance and use the __self__ attribute of the bound + * function instead. For a classmethod, this means instance will + * be the class type and for a staticmethod it will be None. + * This is probably the more useful thing we can pass through + * even though we loose knowledge of whether they were called on + * the instance vs the class type, as it reflects what they have + * available in the decoratored function. + */ + + instance = PyObject_GetAttrString(self->object_proxy.wrapped, + "__self__"); + + if (!instance) { + PyErr_Clear(); + Py_INCREF(Py_None); + instance = Py_None; + } + + if (!kwds) { + param_kwds = PyDict_New(); + kwds = param_kwds; + } + + result = PyObject_CallFunctionObjArgs(self->wrapper, + self->object_proxy.wrapped, instance, args, kwds, NULL); + + Py_XDECREF(param_kwds); + + Py_DECREF(instance); + + return result; + } +} + +/* ------------------------------------------------------------------------- */ + +static PyGetSetDef WraptBoundFunctionWrapper_getset[] = { + { "__module__", (getter)WraptObjectProxy_get_module, + (setter)WraptObjectProxy_set_module, 0 }, + { "__doc__", (getter)WraptObjectProxy_get_doc, + (setter)WraptObjectProxy_set_doc, 0 }, + { NULL }, +}; + +PyTypeObject WraptBoundFunctionWrapper_Type = { + PyVarObject_HEAD_INIT(NULL, 0) + "BoundFunctionWrapper", /*tp_name*/ + sizeof(WraptFunctionWrapperObject), /*tp_basicsize*/ + 0, /*tp_itemsize*/ + /* methods */ + 0, /*tp_dealloc*/ + 0, /*tp_print*/ + 0, /*tp_getattr*/ + 0, /*tp_setattr*/ + 0, /*tp_compare*/ + 0, /*tp_repr*/ + 0, /*tp_as_number*/ + 0, /*tp_as_sequence*/ + 0, /*tp_as_mapping*/ + 0, /*tp_hash*/ + (ternaryfunc)WraptBoundFunctionWrapper_call, /*tp_call*/ + 0, /*tp_str*/ + 0, /*tp_getattro*/ + 0, /*tp_setattro*/ + 0, /*tp_as_buffer*/ +#if PY_MAJOR_VERSION < 3 + Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_CHECKTYPES, /*tp_flags*/ +#else + Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/ +#endif + 0, /*tp_doc*/ + 0, /*tp_traverse*/ + 0, /*tp_clear*/ + 0, /*tp_richcompare*/ + offsetof(WraptObjectProxyObject, weakreflist), /*tp_weaklistoffset*/ + 0, /*tp_iter*/ + 0, /*tp_iternext*/ + 0, /*tp_methods*/ + 0, /*tp_members*/ + WraptBoundFunctionWrapper_getset, /*tp_getset*/ + 0, /*tp_base*/ + 0, /*tp_dict*/ + 0, /*tp_descr_get*/ + 0, /*tp_descr_set*/ + 0, /*tp_dictoffset*/ + 0, /*tp_init*/ + 0, /*tp_alloc*/ + 0, /*tp_new*/ + 0, /*tp_free*/ + 0, /*tp_is_gc*/ +}; + +/* ------------------------------------------------------------------------- */ + +static int WraptFunctionWrapper_init(WraptFunctionWrapperObject *self, + PyObject *args, PyObject *kwds) +{ + PyObject *wrapped = NULL; + PyObject *wrapper = NULL; + PyObject *enabled = Py_None; + PyObject *binding = NULL; + PyObject *instance = NULL; + + static PyObject *classmethod_str = NULL; + static PyObject *staticmethod_str = NULL; + static PyObject *function_str = NULL; + + int result = 0; + + static char *kwlist[] = { "wrapped", "wrapper", "enabled", NULL }; + + if (!PyArg_ParseTupleAndKeywords(args, kwds, "OO|O:FunctionWrapper", + kwlist, &wrapped, &wrapper, &enabled)) { + return -1; + } + + if (!classmethod_str) { +#if PY_MAJOR_VERSION >= 3 + classmethod_str = PyUnicode_InternFromString("classmethod"); +#else + classmethod_str = PyString_InternFromString("classmethod"); +#endif + } + + if (!staticmethod_str) { +#if PY_MAJOR_VERSION >= 3 + staticmethod_str = PyUnicode_InternFromString("staticmethod"); +#else + staticmethod_str = PyString_InternFromString("staticmethod"); +#endif + } + + if (!function_str) { +#if PY_MAJOR_VERSION >= 3 + function_str = PyUnicode_InternFromString("function"); +#else + function_str = PyString_InternFromString("function"); +#endif + } + + if (PyObject_IsInstance(wrapped, (PyObject *)&PyClassMethod_Type)) { + binding = classmethod_str; + } + else if (PyObject_IsInstance(wrapped, (PyObject *)&PyStaticMethod_Type)) { + binding = staticmethod_str; + } + else if ((instance = PyObject_GetAttrString(wrapped, "__self__")) != 0) { +#if PY_MAJOR_VERSION < 3 + if (PyObject_IsInstance(instance, (PyObject *)&PyClass_Type) || + PyObject_IsInstance(instance, (PyObject *)&PyType_Type)) { + binding = classmethod_str; + } +#else + if (PyObject_IsInstance(instance, (PyObject *)&PyType_Type)) { + binding = classmethod_str; + } +#endif + else + binding = function_str; + + Py_DECREF(instance); + } + else { + PyErr_Clear(); + + binding = function_str; + } + + result = WraptFunctionWrapperBase_raw_init(self, wrapped, Py_None, + wrapper, enabled, binding, Py_None); + + return result; +} + +/* ------------------------------------------------------------------------- */ + +static PyGetSetDef WraptFunctionWrapper_getset[] = { + { "__module__", (getter)WraptObjectProxy_get_module, + (setter)WraptObjectProxy_set_module, 0 }, + { "__doc__", (getter)WraptObjectProxy_get_doc, + (setter)WraptObjectProxy_set_doc, 0 }, + { NULL }, +}; + +PyTypeObject WraptFunctionWrapper_Type = { + PyVarObject_HEAD_INIT(NULL, 0) + "FunctionWrapper", /*tp_name*/ + sizeof(WraptFunctionWrapperObject), /*tp_basicsize*/ + 0, /*tp_itemsize*/ + /* methods */ + 0, /*tp_dealloc*/ + 0, /*tp_print*/ + 0, /*tp_getattr*/ + 0, /*tp_setattr*/ + 0, /*tp_compare*/ + 0, /*tp_repr*/ + 0, /*tp_as_number*/ + 0, /*tp_as_sequence*/ + 0, /*tp_as_mapping*/ + 0, /*tp_hash*/ + 0, /*tp_call*/ + 0, /*tp_str*/ + 0, /*tp_getattro*/ + 0, /*tp_setattro*/ + 0, /*tp_as_buffer*/ +#if PY_MAJOR_VERSION < 3 + Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_CHECKTYPES, /*tp_flags*/ +#else + Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/ +#endif + 0, /*tp_doc*/ + 0, /*tp_traverse*/ + 0, /*tp_clear*/ + 0, /*tp_richcompare*/ + offsetof(WraptObjectProxyObject, weakreflist), /*tp_weaklistoffset*/ + 0, /*tp_iter*/ + 0, /*tp_iternext*/ + 0, /*tp_methods*/ + 0, /*tp_members*/ + WraptFunctionWrapper_getset, /*tp_getset*/ + 0, /*tp_base*/ + 0, /*tp_dict*/ + 0, /*tp_descr_get*/ + 0, /*tp_descr_set*/ + 0, /*tp_dictoffset*/ + (initproc)WraptFunctionWrapper_init, /*tp_init*/ + 0, /*tp_alloc*/ + 0, /*tp_new*/ + 0, /*tp_free*/ + 0, /*tp_is_gc*/ +}; + +/* ------------------------------------------------------------------------- */ + +#if PY_MAJOR_VERSION >= 3 +static struct PyModuleDef moduledef = { + PyModuleDef_HEAD_INIT, + "_wrappers", /* m_name */ + NULL, /* m_doc */ + -1, /* m_size */ + NULL, /* m_methods */ + NULL, /* m_reload */ + NULL, /* m_traverse */ + NULL, /* m_clear */ + NULL, /* m_free */ +}; +#endif + +static PyObject * +moduleinit(void) +{ + PyObject *module; + +#if PY_MAJOR_VERSION >= 3 + module = PyModule_Create(&moduledef); +#else + module = Py_InitModule3("_wrappers", NULL, NULL); +#endif + + if (module == NULL) + return NULL; + + if (PyType_Ready(&WraptObjectProxy_Type) < 0) + return NULL; + + /* Ensure that inheritance relationships specified. */ + + WraptCallableObjectProxy_Type.tp_base = &WraptObjectProxy_Type; + WraptPartialCallableObjectProxy_Type.tp_base = &WraptObjectProxy_Type; + WraptFunctionWrapperBase_Type.tp_base = &WraptObjectProxy_Type; + WraptBoundFunctionWrapper_Type.tp_base = &WraptFunctionWrapperBase_Type; + WraptFunctionWrapper_Type.tp_base = &WraptFunctionWrapperBase_Type; + + if (PyType_Ready(&WraptCallableObjectProxy_Type) < 0) + return NULL; + if (PyType_Ready(&WraptPartialCallableObjectProxy_Type) < 0) + return NULL; + if (PyType_Ready(&WraptFunctionWrapperBase_Type) < 0) + return NULL; + if (PyType_Ready(&WraptBoundFunctionWrapper_Type) < 0) + return NULL; + if (PyType_Ready(&WraptFunctionWrapper_Type) < 0) + return NULL; + + Py_INCREF(&WraptObjectProxy_Type); + PyModule_AddObject(module, "ObjectProxy", + (PyObject *)&WraptObjectProxy_Type); + Py_INCREF(&WraptCallableObjectProxy_Type); + PyModule_AddObject(module, "CallableObjectProxy", + (PyObject *)&WraptCallableObjectProxy_Type); + PyModule_AddObject(module, "PartialCallableObjectProxy", + (PyObject *)&WraptPartialCallableObjectProxy_Type); + Py_INCREF(&WraptFunctionWrapper_Type); + PyModule_AddObject(module, "FunctionWrapper", + (PyObject *)&WraptFunctionWrapper_Type); + + Py_INCREF(&WraptFunctionWrapperBase_Type); + PyModule_AddObject(module, "_FunctionWrapperBase", + (PyObject *)&WraptFunctionWrapperBase_Type); + Py_INCREF(&WraptBoundFunctionWrapper_Type); + PyModule_AddObject(module, "BoundFunctionWrapper", + (PyObject *)&WraptBoundFunctionWrapper_Type); + + return module; +} + +#if PY_MAJOR_VERSION < 3 +PyMODINIT_FUNC init_wrappers(void) +{ + moduleinit(); +} +#else +PyMODINIT_FUNC PyInit__wrappers(void) +{ + return moduleinit(); +} +#endif + +/* ------------------------------------------------------------------------- */ diff --git a/ddtrace/vendor/wrapt/decorators.py b/ddtrace/vendor/wrapt/decorators.py new file mode 100644 index 0000000000..9b569f8cb9 --- /dev/null +++ b/ddtrace/vendor/wrapt/decorators.py @@ -0,0 +1,511 @@ +"""This module implements decorators for implementing other decorators +as well as some commonly used decorators. + +""" + +import sys + +PY2 = sys.version_info[0] == 2 +PY3 = sys.version_info[0] == 3 + +if PY3: + string_types = str, + + import builtins + exec_ = getattr(builtins, "exec") + del builtins + +else: + string_types = basestring, + + def exec_(_code_, _globs_=None, _locs_=None): + """Execute code in a namespace.""" + if _globs_ is None: + frame = sys._getframe(1) + _globs_ = frame.f_globals + if _locs_ is None: + _locs_ = frame.f_locals + del frame + elif _locs_ is None: + _locs_ = _globs_ + exec("""exec _code_ in _globs_, _locs_""") + +from functools import partial +from inspect import ismethod, isclass, formatargspec +from collections import namedtuple +from threading import Lock, RLock + +try: + from inspect import signature +except ImportError: + pass + +from .wrappers import (FunctionWrapper, BoundFunctionWrapper, ObjectProxy, + CallableObjectProxy) + +# Adapter wrapper for the wrapped function which will overlay certain +# properties from the adapter function onto the wrapped function so that +# functions such as inspect.getargspec(), inspect.getfullargspec(), +# inspect.signature() and inspect.getsource() return the correct results +# one would expect. + +class _AdapterFunctionCode(CallableObjectProxy): + + def __init__(self, wrapped_code, adapter_code): + super(_AdapterFunctionCode, self).__init__(wrapped_code) + self._self_adapter_code = adapter_code + + @property + def co_argcount(self): + return self._self_adapter_code.co_argcount + + @property + def co_code(self): + return self._self_adapter_code.co_code + + @property + def co_flags(self): + return self._self_adapter_code.co_flags + + @property + def co_kwonlyargcount(self): + return self._self_adapter_code.co_kwonlyargcount + + @property + def co_varnames(self): + return self._self_adapter_code.co_varnames + +class _AdapterFunctionSurrogate(CallableObjectProxy): + + def __init__(self, wrapped, adapter): + super(_AdapterFunctionSurrogate, self).__init__(wrapped) + self._self_adapter = adapter + + @property + def __code__(self): + return _AdapterFunctionCode(self.__wrapped__.__code__, + self._self_adapter.__code__) + + @property + def __defaults__(self): + return self._self_adapter.__defaults__ + + @property + def __kwdefaults__(self): + return self._self_adapter.__kwdefaults__ + + @property + def __signature__(self): + if 'signature' not in globals(): + return self._self_adapter.__signature__ + else: + # Can't allow this to fail on Python 3 else it falls + # through to using __wrapped__, but that will be the + # wrong function we want to derive the signature + # from. Thus generate the signature ourselves. + + return signature(self._self_adapter) + + if PY2: + func_code = __code__ + func_defaults = __defaults__ + +class _BoundAdapterWrapper(BoundFunctionWrapper): + + @property + def __func__(self): + return _AdapterFunctionSurrogate(self.__wrapped__.__func__, + self._self_parent._self_adapter) + + if PY2: + im_func = __func__ + +class AdapterWrapper(FunctionWrapper): + + __bound_function_wrapper__ = _BoundAdapterWrapper + + def __init__(self, *args, **kwargs): + adapter = kwargs.pop('adapter') + super(AdapterWrapper, self).__init__(*args, **kwargs) + self._self_surrogate = _AdapterFunctionSurrogate( + self.__wrapped__, adapter) + self._self_adapter = adapter + + @property + def __code__(self): + return self._self_surrogate.__code__ + + @property + def __defaults__(self): + return self._self_surrogate.__defaults__ + + @property + def __kwdefaults__(self): + return self._self_surrogate.__kwdefaults__ + + if PY2: + func_code = __code__ + func_defaults = __defaults__ + + @property + def __signature__(self): + return self._self_surrogate.__signature__ + +class AdapterFactory(object): + def __call__(self, wrapped): + raise NotImplementedError() + +class DelegatedAdapterFactory(AdapterFactory): + def __init__(self, factory): + super(DelegatedAdapterFactory, self).__init__() + self.factory = factory + def __call__(self, wrapped): + return self.factory(wrapped) + +adapter_factory = DelegatedAdapterFactory + +# Decorator for creating other decorators. This decorator and the +# wrappers which they use are designed to properly preserve any name +# attributes, function signatures etc, in addition to the wrappers +# themselves acting like a transparent proxy for the original wrapped +# function so the wrapper is effectively indistinguishable from the +# original wrapped function. + +def decorator(wrapper=None, enabled=None, adapter=None): + # The decorator should be supplied with a single positional argument + # which is the wrapper function to be used to implement the + # decorator. This may be preceded by a step whereby the keyword + # arguments are supplied to customise the behaviour of the + # decorator. The 'adapter' argument is used to optionally denote a + # separate function which is notionally used by an adapter + # decorator. In that case parts of the function '__code__' and + # '__defaults__' attributes are used from the adapter function + # rather than those of the wrapped function. This allows for the + # argument specification from inspect.getargspec() and similar + # functions to be overridden with a prototype for a different + # function than what was wrapped. The 'enabled' argument provides a + # way to enable/disable the use of the decorator. If the type of + # 'enabled' is a boolean, then it is evaluated immediately and the + # wrapper not even applied if it is False. If not a boolean, it will + # be evaluated when the wrapper is called for an unbound wrapper, + # and when binding occurs for a bound wrapper. When being evaluated, + # if 'enabled' is callable it will be called to obtain the value to + # be checked. If False, the wrapper will not be called and instead + # the original wrapped function will be called directly instead. + + if wrapper is not None: + # Helper function for creating wrapper of the appropriate + # time when we need it down below. + + def _build(wrapped, wrapper, enabled=None, adapter=None): + if adapter: + if isinstance(adapter, AdapterFactory): + adapter = adapter(wrapped) + + if not callable(adapter): + ns = {} + if not isinstance(adapter, string_types): + adapter = formatargspec(*adapter) + exec_('def adapter{}: pass'.format(adapter), ns, ns) + adapter = ns['adapter'] + + return AdapterWrapper(wrapped=wrapped, wrapper=wrapper, + enabled=enabled, adapter=adapter) + + return FunctionWrapper(wrapped=wrapped, wrapper=wrapper, + enabled=enabled) + + # The wrapper has been provided so return the final decorator. + # The decorator is itself one of our function wrappers so we + # can determine when it is applied to functions, instance methods + # or class methods. This allows us to bind the instance or class + # method so the appropriate self or cls attribute is supplied + # when it is finally called. + + def _wrapper(wrapped, instance, args, kwargs): + # We first check for the case where the decorator was applied + # to a class type. + # + # @decorator + # class mydecoratorclass(object): + # def __init__(self, arg=None): + # self.arg = arg + # def __call__(self, wrapped, instance, args, kwargs): + # return wrapped(*args, **kwargs) + # + # @mydecoratorclass(arg=1) + # def function(): + # pass + # + # In this case an instance of the class is to be used as the + # decorator wrapper function. If args was empty at this point, + # then it means that there were optional keyword arguments + # supplied to be used when creating an instance of the class + # to be used as the wrapper function. + + if instance is None and isclass(wrapped) and not args: + # We still need to be passed the target function to be + # wrapped as yet, so we need to return a further function + # to be able to capture it. + + def _capture(target_wrapped): + # Now have the target function to be wrapped and need + # to create an instance of the class which is to act + # as the decorator wrapper function. Before we do that, + # we need to first check that use of the decorator + # hadn't been disabled by a simple boolean. If it was, + # the target function to be wrapped is returned instead. + + _enabled = enabled + if type(_enabled) is bool: + if not _enabled: + return target_wrapped + _enabled = None + + # Now create an instance of the class which is to act + # as the decorator wrapper function. Any arguments had + # to be supplied as keyword only arguments so that is + # all we pass when creating it. + + target_wrapper = wrapped(**kwargs) + + # Finally build the wrapper itself and return it. + + return _build(target_wrapped, target_wrapper, + _enabled, adapter) + + return _capture + + # We should always have the target function to be wrapped at + # this point as the first (and only) value in args. + + target_wrapped = args[0] + + # Need to now check that use of the decorator hadn't been + # disabled by a simple boolean. If it was, then target + # function to be wrapped is returned instead. + + _enabled = enabled + if type(_enabled) is bool: + if not _enabled: + return target_wrapped + _enabled = None + + # We now need to build the wrapper, but there are a couple of + # different cases we need to consider. + + if instance is None: + if isclass(wrapped): + # In this case the decorator was applied to a class + # type but optional keyword arguments were not supplied + # for initialising an instance of the class to be used + # as the decorator wrapper function. + # + # @decorator + # class mydecoratorclass(object): + # def __init__(self, arg=None): + # self.arg = arg + # def __call__(self, wrapped, instance, + # args, kwargs): + # return wrapped(*args, **kwargs) + # + # @mydecoratorclass + # def function(): + # pass + # + # We still need to create an instance of the class to + # be used as the decorator wrapper function, but no + # arguments are pass. + + target_wrapper = wrapped() + + else: + # In this case the decorator was applied to a normal + # function, or possibly a static method of a class. + # + # @decorator + # def mydecoratorfuntion(wrapped, instance, + # args, kwargs): + # return wrapped(*args, **kwargs) + # + # @mydecoratorfunction + # def function(): + # pass + # + # That normal function becomes the decorator wrapper + # function. + + target_wrapper = wrapper + + else: + if isclass(instance): + # In this case the decorator was applied to a class + # method. + # + # class myclass(object): + # @decorator + # @classmethod + # def decoratorclassmethod(cls, wrapped, + # instance, args, kwargs): + # return wrapped(*args, **kwargs) + # + # instance = myclass() + # + # @instance.decoratorclassmethod + # def function(): + # pass + # + # This one is a bit strange because binding was actually + # performed on the wrapper created by our decorator + # factory. We need to apply that binding to the decorator + # wrapper function which which the decorator factory + # was applied to. + + target_wrapper = wrapper.__get__(None, instance) + + else: + # In this case the decorator was applied to an instance + # method. + # + # class myclass(object): + # @decorator + # def decoratorclassmethod(self, wrapped, + # instance, args, kwargs): + # return wrapped(*args, **kwargs) + # + # instance = myclass() + # + # @instance.decoratorclassmethod + # def function(): + # pass + # + # This one is a bit strange because binding was actually + # performed on the wrapper created by our decorator + # factory. We need to apply that binding to the decorator + # wrapper function which which the decorator factory + # was applied to. + + target_wrapper = wrapper.__get__(instance, type(instance)) + + # Finally build the wrapper itself and return it. + + return _build(target_wrapped, target_wrapper, _enabled, adapter) + + # We first return our magic function wrapper here so we can + # determine in what context the decorator factory was used. In + # other words, it is itself a universal decorator. + + return _build(wrapper, _wrapper) + + else: + # The wrapper still has not been provided, so we are just + # collecting the optional keyword arguments. Return the + # decorator again wrapped in a partial using the collected + # arguments. + + return partial(decorator, enabled=enabled, adapter=adapter) + +# Decorator for implementing thread synchronization. It can be used as a +# decorator, in which case the synchronization context is determined by +# what type of function is wrapped, or it can also be used as a context +# manager, where the user needs to supply the correct synchronization +# context. It is also possible to supply an object which appears to be a +# synchronization primitive of some sort, by virtue of having release() +# and acquire() methods. In that case that will be used directly as the +# synchronization primitive without creating a separate lock against the +# derived or supplied context. + +def synchronized(wrapped): + # Determine if being passed an object which is a synchronization + # primitive. We can't check by type for Lock, RLock, Semaphore etc, + # as the means of creating them isn't the type. Therefore use the + # existence of acquire() and release() methods. This is more + # extensible anyway as it allows custom synchronization mechanisms. + + if hasattr(wrapped, 'acquire') and hasattr(wrapped, 'release'): + # We remember what the original lock is and then return a new + # decorator which accesses and locks it. When returning the new + # decorator we wrap it with an object proxy so we can override + # the context manager methods in case it is being used to wrap + # synchronized statements with a 'with' statement. + + lock = wrapped + + @decorator + def _synchronized(wrapped, instance, args, kwargs): + # Execute the wrapped function while the original supplied + # lock is held. + + with lock: + return wrapped(*args, **kwargs) + + class _PartialDecorator(CallableObjectProxy): + + def __enter__(self): + lock.acquire() + return lock + + def __exit__(self, *args): + lock.release() + + return _PartialDecorator(wrapped=_synchronized) + + # Following only apply when the lock is being created automatically + # based on the context of what was supplied. In this case we supply + # a final decorator, but need to use FunctionWrapper directly as we + # want to derive from it to add context manager methods in case it is + # being used to wrap synchronized statements with a 'with' statement. + + def _synchronized_lock(context): + # Attempt to retrieve the lock for the specific context. + + lock = vars(context).get('_synchronized_lock', None) + + if lock is None: + # There is no existing lock defined for the context we + # are dealing with so we need to create one. This needs + # to be done in a way to guarantee there is only one + # created, even if multiple threads try and create it at + # the same time. We can't always use the setdefault() + # method on the __dict__ for the context. This is the + # case where the context is a class, as __dict__ is + # actually a dictproxy. What we therefore do is use a + # meta lock on this wrapper itself, to control the + # creation and assignment of the lock attribute against + # the context. + + with synchronized._synchronized_meta_lock: + # We need to check again for whether the lock we want + # exists in case two threads were trying to create it + # at the same time and were competing to create the + # meta lock. + + lock = vars(context).get('_synchronized_lock', None) + + if lock is None: + lock = RLock() + setattr(context, '_synchronized_lock', lock) + + return lock + + def _synchronized_wrapper(wrapped, instance, args, kwargs): + # Execute the wrapped function while the lock for the + # desired context is held. If instance is None then the + # wrapped function is used as the context. + + with _synchronized_lock(instance or wrapped): + return wrapped(*args, **kwargs) + + class _FinalDecorator(FunctionWrapper): + + def __enter__(self): + self._self_lock = _synchronized_lock(self.__wrapped__) + self._self_lock.acquire() + return self._self_lock + + def __exit__(self, *args): + self._self_lock.release() + + return _FinalDecorator(wrapped=wrapped, wrapper=_synchronized_wrapper) + +synchronized._synchronized_meta_lock = Lock() diff --git a/ddtrace/vendor/wrapt/importer.py b/ddtrace/vendor/wrapt/importer.py new file mode 100644 index 0000000000..9e617cdddc --- /dev/null +++ b/ddtrace/vendor/wrapt/importer.py @@ -0,0 +1,230 @@ +"""This module implements a post import hook mechanism styled after what is +described in PEP-369. Note that it doesn't cope with modules being reloaded. + +""" + +import sys +import threading + +PY2 = sys.version_info[0] == 2 +PY3 = sys.version_info[0] == 3 + +if PY3: + import importlib + string_types = str, +else: + string_types = basestring, + +from .decorators import synchronized + +# The dictionary registering any post import hooks to be triggered once +# the target module has been imported. Once a module has been imported +# and the hooks fired, the list of hooks recorded against the target +# module will be truncacted but the list left in the dictionary. This +# acts as a flag to indicate that the module had already been imported. + +_post_import_hooks = {} +_post_import_hooks_init = False +_post_import_hooks_lock = threading.RLock() + +# Register a new post import hook for the target module name. This +# differs from the PEP-369 implementation in that it also allows the +# hook function to be specified as a string consisting of the name of +# the callback in the form 'module:function'. This will result in a +# proxy callback being registered which will defer loading of the +# specified module containing the callback function until required. + +def _create_import_hook_from_string(name): + def import_hook(module): + module_name, function = name.split(':') + attrs = function.split('.') + __import__(module_name) + callback = sys.modules[module_name] + for attr in attrs: + callback = getattr(callback, attr) + return callback(module) + return import_hook + +@synchronized(_post_import_hooks_lock) +def register_post_import_hook(hook, name): + # Create a deferred import hook if hook is a string name rather than + # a callable function. + + if isinstance(hook, string_types): + hook = _create_import_hook_from_string(hook) + + # Automatically install the import hook finder if it has not already + # been installed. + + global _post_import_hooks_init + + if not _post_import_hooks_init: + _post_import_hooks_init = True + sys.meta_path.insert(0, ImportHookFinder()) + + # Determine if any prior registration of a post import hook for + # the target modules has occurred and act appropriately. + + hooks = _post_import_hooks.get(name, None) + + if hooks is None: + # No prior registration of post import hooks for the target + # module. We need to check whether the module has already been + # imported. If it has we fire the hook immediately and add an + # empty list to the registry to indicate that the module has + # already been imported and hooks have fired. Otherwise add + # the post import hook to the registry. + + module = sys.modules.get(name, None) + + if module is not None: + _post_import_hooks[name] = [] + hook(module) + + else: + _post_import_hooks[name] = [hook] + + elif hooks == []: + # A prior registration of port import hooks for the target + # module was done and the hooks already fired. Fire the hook + # immediately. + + module = sys.modules[name] + hook(module) + + else: + # A prior registration of port import hooks for the target + # module was done but the module has not yet been imported. + + _post_import_hooks[name].append(hook) + +# Register post import hooks defined as package entry points. + +def _create_import_hook_from_entrypoint(entrypoint): + def import_hook(module): + __import__(entrypoint.module_name) + callback = sys.modules[entrypoint.module_name] + for attr in entrypoint.attrs: + callback = getattr(callback, attr) + return callback(module) + return import_hook + +def discover_post_import_hooks(group): + try: + import pkg_resources + except ImportError: + return + + for entrypoint in pkg_resources.iter_entry_points(group=group): + callback = _create_import_hook_from_entrypoint(entrypoint) + register_post_import_hook(callback, entrypoint.name) + +# Indicate that a module has been loaded. Any post import hooks which +# were registered against the target module will be invoked. If an +# exception is raised in any of the post import hooks, that will cause +# the import of the target module to fail. + +@synchronized(_post_import_hooks_lock) +def notify_module_loaded(module): + name = getattr(module, '__name__', None) + hooks = _post_import_hooks.get(name, None) + + if hooks: + _post_import_hooks[name] = [] + + for hook in hooks: + hook(module) + +# A custom module import finder. This intercepts attempts to import +# modules and watches out for attempts to import target modules of +# interest. When a module of interest is imported, then any post import +# hooks which are registered will be invoked. + +class _ImportHookLoader: + + def load_module(self, fullname): + module = sys.modules[fullname] + notify_module_loaded(module) + + return module + +class _ImportHookChainedLoader: + + def __init__(self, loader): + self.loader = loader + + def load_module(self, fullname): + module = self.loader.load_module(fullname) + notify_module_loaded(module) + + return module + +class ImportHookFinder: + + def __init__(self): + self.in_progress = {} + + @synchronized(_post_import_hooks_lock) + def find_module(self, fullname, path=None): + # If the module being imported is not one we have registered + # post import hooks for, we can return immediately. We will + # take no further part in the importing of this module. + + if not fullname in _post_import_hooks: + return None + + # When we are interested in a specific module, we will call back + # into the import system a second time to defer to the import + # finder that is supposed to handle the importing of the module. + # We set an in progress flag for the target module so that on + # the second time through we don't trigger another call back + # into the import system and cause a infinite loop. + + if fullname in self.in_progress: + return None + + self.in_progress[fullname] = True + + # Now call back into the import system again. + + try: + if PY3: + # For Python 3 we need to use find_spec().loader + # from the importlib.util module. It doesn't actually + # import the target module and only finds the + # loader. If a loader is found, we need to return + # our own loader which will then in turn call the + # real loader to import the module and invoke the + # post import hooks. + try: + import importlib.util + loader = importlib.util.find_spec(fullname).loader + except (ImportError, AttributeError): + loader = importlib.find_loader(fullname, path) + if loader: + return _ImportHookChainedLoader(loader) + + else: + # For Python 2 we don't have much choice but to + # call back in to __import__(). This will + # actually cause the module to be imported. If no + # module could be found then ImportError will be + # raised. Otherwise we return a loader which + # returns the already loaded module and invokes + # the post import hooks. + + __import__(fullname) + + return _ImportHookLoader() + + finally: + del self.in_progress[fullname] + +# Decorator for marking that a function should be called as a post +# import hook when the target module is imported. + +def when_imported(name): + def register(hook): + register_post_import_hook(hook, name) + return hook + return register diff --git a/ddtrace/vendor/wrapt/setup.py b/ddtrace/vendor/wrapt/setup.py new file mode 100644 index 0000000000..dae324bd23 --- /dev/null +++ b/ddtrace/vendor/wrapt/setup.py @@ -0,0 +1,7 @@ +__all__ = ["get_extensions"] + +from setuptools import Extension + + +def get_extensions(): + return [Extension("ddtrace.vendor.wrapt._wrappers", sources=["ddtrace/vendor/wrapt/_wrappers.c"],)] diff --git a/ddtrace/vendor/wrapt/wrappers.py b/ddtrace/vendor/wrapt/wrappers.py new file mode 100644 index 0000000000..1d6131d853 --- /dev/null +++ b/ddtrace/vendor/wrapt/wrappers.py @@ -0,0 +1,943 @@ +import os +import sys +import functools +import operator +import weakref +import inspect + +PY2 = sys.version_info[0] == 2 +PY3 = sys.version_info[0] == 3 + +if PY3: + string_types = str, +else: + string_types = basestring, + +def with_metaclass(meta, *bases): + """Create a base class with a metaclass.""" + return meta("NewBase", bases, {}) + +class _ObjectProxyMethods(object): + + # We use properties to override the values of __module__ and + # __doc__. If we add these in ObjectProxy, the derived class + # __dict__ will still be setup to have string variants of these + # attributes and the rules of descriptors means that they appear to + # take precedence over the properties in the base class. To avoid + # that, we copy the properties into the derived class type itself + # via a meta class. In that way the properties will always take + # precedence. + + @property + def __module__(self): + return self.__wrapped__.__module__ + + @__module__.setter + def __module__(self, value): + self.__wrapped__.__module__ = value + + @property + def __doc__(self): + return self.__wrapped__.__doc__ + + @__doc__.setter + def __doc__(self, value): + self.__wrapped__.__doc__ = value + + # We similar use a property for __dict__. We need __dict__ to be + # explicit to ensure that vars() works as expected. + + @property + def __dict__(self): + return self.__wrapped__.__dict__ + + # Need to also propagate the special __weakref__ attribute for case + # where decorating classes which will define this. If do not define + # it and use a function like inspect.getmembers() on a decorator + # class it will fail. This can't be in the derived classes. + + @property + def __weakref__(self): + return self.__wrapped__.__weakref__ + +class _ObjectProxyMetaType(type): + def __new__(cls, name, bases, dictionary): + # Copy our special properties into the class so that they + # always take precedence over attributes of the same name added + # during construction of a derived class. This is to save + # duplicating the implementation for them in all derived classes. + + dictionary.update(vars(_ObjectProxyMethods)) + + return type.__new__(cls, name, bases, dictionary) + +class ObjectProxy(with_metaclass(_ObjectProxyMetaType)): + + __slots__ = '__wrapped__' + + def __init__(self, wrapped): + object.__setattr__(self, '__wrapped__', wrapped) + + # Python 3.2+ has the __qualname__ attribute, but it does not + # allow it to be overridden using a property and it must instead + # be an actual string object instead. + + try: + object.__setattr__(self, '__qualname__', wrapped.__qualname__) + except AttributeError: + pass + + @property + def __name__(self): + return self.__wrapped__.__name__ + + @__name__.setter + def __name__(self, value): + self.__wrapped__.__name__ = value + + @property + def __class__(self): + return self.__wrapped__.__class__ + + @__class__.setter + def __class__(self, value): + self.__wrapped__.__class__ = value + + @property + def __annotations__(self): + return self.__wrapped__.__annotations__ + + @__annotations__.setter + def __annotations__(self, value): + self.__wrapped__.__annotations__ = value + + def __dir__(self): + return dir(self.__wrapped__) + + def __str__(self): + return str(self.__wrapped__) + + if PY3: + def __bytes__(self): + return bytes(self.__wrapped__) + + def __repr__(self): + return '<{} at 0x{:x} for {} at 0x{:x}>'.format( + type(self).__name__, id(self), + type(self.__wrapped__).__name__, + id(self.__wrapped__)) + + def __reversed__(self): + return reversed(self.__wrapped__) + + if PY3: + def __round__(self): + return round(self.__wrapped__) + + def __lt__(self, other): + return self.__wrapped__ < other + + def __le__(self, other): + return self.__wrapped__ <= other + + def __eq__(self, other): + return self.__wrapped__ == other + + def __ne__(self, other): + return self.__wrapped__ != other + + def __gt__(self, other): + return self.__wrapped__ > other + + def __ge__(self, other): + return self.__wrapped__ >= other + + def __hash__(self): + return hash(self.__wrapped__) + + def __nonzero__(self): + return bool(self.__wrapped__) + + def __bool__(self): + return bool(self.__wrapped__) + + def __setattr__(self, name, value): + if name.startswith('_self_'): + object.__setattr__(self, name, value) + + elif name == '__wrapped__': + object.__setattr__(self, name, value) + try: + object.__delattr__(self, '__qualname__') + except AttributeError: + pass + try: + object.__setattr__(self, '__qualname__', value.__qualname__) + except AttributeError: + pass + + elif name == '__qualname__': + setattr(self.__wrapped__, name, value) + object.__setattr__(self, name, value) + + elif hasattr(type(self), name): + object.__setattr__(self, name, value) + + else: + setattr(self.__wrapped__, name, value) + + def __getattr__(self, name): + # If we are being to lookup '__wrapped__' then the + # '__init__()' method cannot have been called. + + if name == '__wrapped__': + raise ValueError('wrapper has not been initialised') + + return getattr(self.__wrapped__, name) + + def __delattr__(self, name): + if name.startswith('_self_'): + object.__delattr__(self, name) + + elif name == '__wrapped__': + raise TypeError('__wrapped__ must be an object') + + elif name == '__qualname__': + object.__delattr__(self, name) + delattr(self.__wrapped__, name) + + elif hasattr(type(self), name): + object.__delattr__(self, name) + + else: + delattr(self.__wrapped__, name) + + def __add__(self, other): + return self.__wrapped__ + other + + def __sub__(self, other): + return self.__wrapped__ - other + + def __mul__(self, other): + return self.__wrapped__ * other + + def __div__(self, other): + return operator.div(self.__wrapped__, other) + + def __truediv__(self, other): + return operator.truediv(self.__wrapped__, other) + + def __floordiv__(self, other): + return self.__wrapped__ // other + + def __mod__(self, other): + return self.__wrapped__ % other + + def __divmod__(self, other): + return divmod(self.__wrapped__, other) + + def __pow__(self, other, *args): + return pow(self.__wrapped__, other, *args) + + def __lshift__(self, other): + return self.__wrapped__ << other + + def __rshift__(self, other): + return self.__wrapped__ >> other + + def __and__(self, other): + return self.__wrapped__ & other + + def __xor__(self, other): + return self.__wrapped__ ^ other + + def __or__(self, other): + return self.__wrapped__ | other + + def __radd__(self, other): + return other + self.__wrapped__ + + def __rsub__(self, other): + return other - self.__wrapped__ + + def __rmul__(self, other): + return other * self.__wrapped__ + + def __rdiv__(self, other): + return operator.div(other, self.__wrapped__) + + def __rtruediv__(self, other): + return operator.truediv(other, self.__wrapped__) + + def __rfloordiv__(self, other): + return other // self.__wrapped__ + + def __rmod__(self, other): + return other % self.__wrapped__ + + def __rdivmod__(self, other): + return divmod(other, self.__wrapped__) + + def __rpow__(self, other, *args): + return pow(other, self.__wrapped__, *args) + + def __rlshift__(self, other): + return other << self.__wrapped__ + + def __rrshift__(self, other): + return other >> self.__wrapped__ + + def __rand__(self, other): + return other & self.__wrapped__ + + def __rxor__(self, other): + return other ^ self.__wrapped__ + + def __ror__(self, other): + return other | self.__wrapped__ + + def __iadd__(self, other): + self.__wrapped__ += other + return self + + def __isub__(self, other): + self.__wrapped__ -= other + return self + + def __imul__(self, other): + self.__wrapped__ *= other + return self + + def __idiv__(self, other): + self.__wrapped__ = operator.idiv(self.__wrapped__, other) + return self + + def __itruediv__(self, other): + self.__wrapped__ = operator.itruediv(self.__wrapped__, other) + return self + + def __ifloordiv__(self, other): + self.__wrapped__ //= other + return self + + def __imod__(self, other): + self.__wrapped__ %= other + return self + + def __ipow__(self, other): + self.__wrapped__ **= other + return self + + def __ilshift__(self, other): + self.__wrapped__ <<= other + return self + + def __irshift__(self, other): + self.__wrapped__ >>= other + return self + + def __iand__(self, other): + self.__wrapped__ &= other + return self + + def __ixor__(self, other): + self.__wrapped__ ^= other + return self + + def __ior__(self, other): + self.__wrapped__ |= other + return self + + def __neg__(self): + return -self.__wrapped__ + + def __pos__(self): + return +self.__wrapped__ + + def __abs__(self): + return abs(self.__wrapped__) + + def __invert__(self): + return ~self.__wrapped__ + + def __int__(self): + return int(self.__wrapped__) + + def __long__(self): + return long(self.__wrapped__) + + def __float__(self): + return float(self.__wrapped__) + + def __complex__(self): + return complex(self.__wrapped__) + + def __oct__(self): + return oct(self.__wrapped__) + + def __hex__(self): + return hex(self.__wrapped__) + + def __index__(self): + return operator.index(self.__wrapped__) + + def __len__(self): + return len(self.__wrapped__) + + def __contains__(self, value): + return value in self.__wrapped__ + + def __getitem__(self, key): + return self.__wrapped__[key] + + def __setitem__(self, key, value): + self.__wrapped__[key] = value + + def __delitem__(self, key): + del self.__wrapped__[key] + + def __getslice__(self, i, j): + return self.__wrapped__[i:j] + + def __setslice__(self, i, j, value): + self.__wrapped__[i:j] = value + + def __delslice__(self, i, j): + del self.__wrapped__[i:j] + + def __enter__(self): + return self.__wrapped__.__enter__() + + def __exit__(self, *args, **kwargs): + return self.__wrapped__.__exit__(*args, **kwargs) + + def __iter__(self): + return iter(self.__wrapped__) + + def __copy__(self): + raise NotImplementedError('object proxy must define __copy__()') + + def __deepcopy__(self, memo): + raise NotImplementedError('object proxy must define __deepcopy__()') + + def __reduce__(self): + raise NotImplementedError( + 'object proxy must define __reduce_ex__()') + + def __reduce_ex__(self, protocol): + raise NotImplementedError( + 'object proxy must define __reduce_ex__()') + +class CallableObjectProxy(ObjectProxy): + + def __call__(self, *args, **kwargs): + return self.__wrapped__(*args, **kwargs) + +class PartialCallableObjectProxy(ObjectProxy): + + def __init__(self, *args, **kwargs): + if len(args) < 1: + raise TypeError('partial type takes at least one argument') + + wrapped, args = args[0], args[1:] + + if not callable(wrapped): + raise TypeError('the first argument must be callable') + + super(PartialCallableObjectProxy, self).__init__(wrapped) + + self._self_args = args + self._self_kwargs = kwargs + + def __call__(self, *args, **kwargs): + _args = self._self_args + args + + _kwargs = dict(self._self_kwargs) + _kwargs.update(kwargs) + + return self.__wrapped__(*_args, **_kwargs) + +class _FunctionWrapperBase(ObjectProxy): + + __slots__ = ('_self_instance', '_self_wrapper', '_self_enabled', + '_self_binding', '_self_parent') + + def __init__(self, wrapped, instance, wrapper, enabled=None, + binding='function', parent=None): + + super(_FunctionWrapperBase, self).__init__(wrapped) + + object.__setattr__(self, '_self_instance', instance) + object.__setattr__(self, '_self_wrapper', wrapper) + object.__setattr__(self, '_self_enabled', enabled) + object.__setattr__(self, '_self_binding', binding) + object.__setattr__(self, '_self_parent', parent) + + def __get__(self, instance, owner): + # This method is actually doing double duty for both unbound and + # bound derived wrapper classes. It should possibly be broken up + # and the distinct functionality moved into the derived classes. + # Can't do that straight away due to some legacy code which is + # relying on it being here in this base class. + # + # The distinguishing attribute which determines whether we are + # being called in an unbound or bound wrapper is the parent + # attribute. If binding has never occurred, then the parent will + # be None. + # + # First therefore, is if we are called in an unbound wrapper. In + # this case we perform the binding. + # + # We have one special case to worry about here. This is where we + # are decorating a nested class. In this case the wrapped class + # would not have a __get__() method to call. In that case we + # simply return self. + # + # Note that we otherwise still do binding even if instance is + # None and accessing an unbound instance method from a class. + # This is because we need to be able to later detect that + # specific case as we will need to extract the instance from the + # first argument of those passed in. + + if self._self_parent is None: + if not inspect.isclass(self.__wrapped__): + descriptor = self.__wrapped__.__get__(instance, owner) + + return self.__bound_function_wrapper__(descriptor, instance, + self._self_wrapper, self._self_enabled, + self._self_binding, self) + + return self + + # Now we have the case of binding occurring a second time on what + # was already a bound function. In this case we would usually + # return ourselves again. This mirrors what Python does. + # + # The special case this time is where we were originally bound + # with an instance of None and we were likely an instance + # method. In that case we rebind against the original wrapped + # function from the parent again. + + if self._self_instance is None and self._self_binding == 'function': + descriptor = self._self_parent.__wrapped__.__get__( + instance, owner) + + return self._self_parent.__bound_function_wrapper__( + descriptor, instance, self._self_wrapper, + self._self_enabled, self._self_binding, + self._self_parent) + + return self + + def __call__(self, *args, **kwargs): + # If enabled has been specified, then evaluate it at this point + # and if the wrapper is not to be executed, then simply return + # the bound function rather than a bound wrapper for the bound + # function. When evaluating enabled, if it is callable we call + # it, otherwise we evaluate it as a boolean. + + if self._self_enabled is not None: + if callable(self._self_enabled): + if not self._self_enabled(): + return self.__wrapped__(*args, **kwargs) + elif not self._self_enabled: + return self.__wrapped__(*args, **kwargs) + + # This can occur where initial function wrapper was applied to + # a function that was already bound to an instance. In that case + # we want to extract the instance from the function and use it. + + if self._self_binding == 'function': + if self._self_instance is None: + instance = getattr(self.__wrapped__, '__self__', None) + if instance is not None: + return self._self_wrapper(self.__wrapped__, instance, + args, kwargs) + + # This is generally invoked when the wrapped function is being + # called as a normal function and is not bound to a class as an + # instance method. This is also invoked in the case where the + # wrapped function was a method, but this wrapper was in turn + # wrapped using the staticmethod decorator. + + return self._self_wrapper(self.__wrapped__, self._self_instance, + args, kwargs) + +class BoundFunctionWrapper(_FunctionWrapperBase): + + def __call__(self, *args, **kwargs): + # If enabled has been specified, then evaluate it at this point + # and if the wrapper is not to be executed, then simply return + # the bound function rather than a bound wrapper for the bound + # function. When evaluating enabled, if it is callable we call + # it, otherwise we evaluate it as a boolean. + + if self._self_enabled is not None: + if callable(self._self_enabled): + if not self._self_enabled(): + return self.__wrapped__(*args, **kwargs) + elif not self._self_enabled: + return self.__wrapped__(*args, **kwargs) + + # We need to do things different depending on whether we are + # likely wrapping an instance method vs a static method or class + # method. + + if self._self_binding == 'function': + if self._self_instance is None: + # This situation can occur where someone is calling the + # instancemethod via the class type and passing the instance + # as the first argument. We need to shift the args before + # making the call to the wrapper and effectively bind the + # instance to the wrapped function using a partial so the + # wrapper doesn't see anything as being different. + + if not args: + raise TypeError('missing 1 required positional argument') + + instance, args = args[0], args[1:] + wrapped = PartialCallableObjectProxy(self.__wrapped__, instance) + return self._self_wrapper(wrapped, instance, args, kwargs) + + return self._self_wrapper(self.__wrapped__, self._self_instance, + args, kwargs) + + else: + # As in this case we would be dealing with a classmethod or + # staticmethod, then _self_instance will only tell us whether + # when calling the classmethod or staticmethod they did it via an + # instance of the class it is bound to and not the case where + # done by the class type itself. We thus ignore _self_instance + # and use the __self__ attribute of the bound function instead. + # For a classmethod, this means instance will be the class type + # and for a staticmethod it will be None. This is probably the + # more useful thing we can pass through even though we loose + # knowledge of whether they were called on the instance vs the + # class type, as it reflects what they have available in the + # decoratored function. + + instance = getattr(self.__wrapped__, '__self__', None) + + return self._self_wrapper(self.__wrapped__, instance, args, + kwargs) + +class FunctionWrapper(_FunctionWrapperBase): + + __bound_function_wrapper__ = BoundFunctionWrapper + + def __init__(self, wrapped, wrapper, enabled=None): + # What it is we are wrapping here could be anything. We need to + # try and detect specific cases though. In particular, we need + # to detect when we are given something that is a method of a + # class. Further, we need to know when it is likely an instance + # method, as opposed to a class or static method. This can + # become problematic though as there isn't strictly a fool proof + # method of knowing. + # + # The situations we could encounter when wrapping a method are: + # + # 1. The wrapper is being applied as part of a decorator which + # is a part of the class definition. In this case what we are + # given is the raw unbound function, classmethod or staticmethod + # wrapper objects. + # + # The problem here is that we will not know we are being applied + # in the context of the class being set up. This becomes + # important later for the case of an instance method, because in + # that case we just see it as a raw function and can't + # distinguish it from wrapping a normal function outside of + # a class context. + # + # 2. The wrapper is being applied when performing monkey + # patching of the class type afterwards and the method to be + # wrapped was retrieved direct from the __dict__ of the class + # type. This is effectively the same as (1) above. + # + # 3. The wrapper is being applied when performing monkey + # patching of the class type afterwards and the method to be + # wrapped was retrieved from the class type. In this case + # binding will have been performed where the instance against + # which the method is bound will be None at that point. + # + # This case is a problem because we can no longer tell if the + # method was a static method, plus if using Python3, we cannot + # tell if it was an instance method as the concept of an + # unnbound method no longer exists. + # + # 4. The wrapper is being applied when performing monkey + # patching of an instance of a class. In this case binding will + # have been perfomed where the instance was not None. + # + # This case is a problem because we can no longer tell if the + # method was a static method. + # + # Overall, the best we can do is look at the original type of the + # object which was wrapped prior to any binding being done and + # see if it is an instance of classmethod or staticmethod. In + # the case where other decorators are between us and them, if + # they do not propagate the __class__ attribute so that the + # isinstance() checks works, then likely this will do the wrong + # thing where classmethod and staticmethod are used. + # + # Since it is likely to be very rare that anyone even puts + # decorators around classmethod and staticmethod, likelihood of + # that being an issue is very small, so we accept it and suggest + # that those other decorators be fixed. It is also only an issue + # if a decorator wants to actually do things with the arguments. + # + # As to not being able to identify static methods properly, we + # just hope that that isn't something people are going to want + # to wrap, or if they do suggest they do it the correct way by + # ensuring that it is decorated in the class definition itself, + # or patch it in the __dict__ of the class type. + # + # So to get the best outcome we can, whenever we aren't sure what + # it is, we label it as a 'function'. If it was already bound and + # that is rebound later, we assume that it will be an instance + # method and try an cope with the possibility that the 'self' + # argument it being passed as an explicit argument and shuffle + # the arguments around to extract 'self' for use as the instance. + + if isinstance(wrapped, classmethod): + binding = 'classmethod' + + elif isinstance(wrapped, staticmethod): + binding = 'staticmethod' + + elif hasattr(wrapped, '__self__'): + if inspect.isclass(wrapped.__self__): + binding = 'classmethod' + else: + binding = 'function' + + else: + binding = 'function' + + super(FunctionWrapper, self).__init__(wrapped, None, wrapper, + enabled, binding) + +try: + if not os.environ.get('WRAPT_DISABLE_EXTENSIONS'): + from ._wrappers import (ObjectProxy, CallableObjectProxy, + PartialCallableObjectProxy, FunctionWrapper, + BoundFunctionWrapper, _FunctionWrapperBase) +except ImportError: + pass + +# Helper functions for applying wrappers to existing functions. + +def resolve_path(module, name): + if isinstance(module, string_types): + __import__(module) + module = sys.modules[module] + + parent = module + + path = name.split('.') + attribute = path[0] + + original = getattr(parent, attribute) + for attribute in path[1:]: + parent = original + + # We can't just always use getattr() because in doing + # that on a class it will cause binding to occur which + # will complicate things later and cause some things not + # to work. For the case of a class we therefore access + # the __dict__ directly. To cope though with the wrong + # class being given to us, or a method being moved into + # a base class, we need to walk the class hierarchy to + # work out exactly which __dict__ the method was defined + # in, as accessing it from __dict__ will fail if it was + # not actually on the class given. Fallback to using + # getattr() if we can't find it. If it truly doesn't + # exist, then that will fail. + + if inspect.isclass(original): + for cls in inspect.getmro(original): + if attribute in vars(cls): + original = vars(cls)[attribute] + break + else: + original = getattr(original, attribute) + + else: + original = getattr(original, attribute) + + return (parent, attribute, original) + +def apply_patch(parent, attribute, replacement): + setattr(parent, attribute, replacement) + +def wrap_object(module, name, factory, args=(), kwargs={}): + (parent, attribute, original) = resolve_path(module, name) + wrapper = factory(original, *args, **kwargs) + apply_patch(parent, attribute, wrapper) + return wrapper + +# Function for applying a proxy object to an attribute of a class +# instance. The wrapper works by defining an attribute of the same name +# on the class which is a descriptor and which intercepts access to the +# instance attribute. Note that this cannot be used on attributes which +# are themselves defined by a property object. + +class AttributeWrapper(object): + + def __init__(self, attribute, factory, args, kwargs): + self.attribute = attribute + self.factory = factory + self.args = args + self.kwargs = kwargs + + def __get__(self, instance, owner): + value = instance.__dict__[self.attribute] + return self.factory(value, *self.args, **self.kwargs) + + def __set__(self, instance, value): + instance.__dict__[self.attribute] = value + + def __delete__(self, instance): + del instance.__dict__[self.attribute] + +def wrap_object_attribute(module, name, factory, args=(), kwargs={}): + path, attribute = name.rsplit('.', 1) + parent = resolve_path(module, path)[2] + wrapper = AttributeWrapper(attribute, factory, args, kwargs) + apply_patch(parent, attribute, wrapper) + return wrapper + +# Functions for creating a simple decorator using a FunctionWrapper, +# plus short cut functions for applying wrappers to functions. These are +# for use when doing monkey patching. For a more featured way of +# creating decorators see the decorator decorator instead. + +def function_wrapper(wrapper): + def _wrapper(wrapped, instance, args, kwargs): + target_wrapped = args[0] + if instance is None: + target_wrapper = wrapper + elif inspect.isclass(instance): + target_wrapper = wrapper.__get__(None, instance) + else: + target_wrapper = wrapper.__get__(instance, type(instance)) + return FunctionWrapper(target_wrapped, target_wrapper) + return FunctionWrapper(wrapper, _wrapper) + +def wrap_function_wrapper(module, name, wrapper): + return wrap_object(module, name, FunctionWrapper, (wrapper,)) + +def patch_function_wrapper(module, name): + def _wrapper(wrapper): + return wrap_object(module, name, FunctionWrapper, (wrapper,)) + return _wrapper + +def transient_function_wrapper(module, name): + def _decorator(wrapper): + def _wrapper(wrapped, instance, args, kwargs): + target_wrapped = args[0] + if instance is None: + target_wrapper = wrapper + elif inspect.isclass(instance): + target_wrapper = wrapper.__get__(None, instance) + else: + target_wrapper = wrapper.__get__(instance, type(instance)) + def _execute(wrapped, instance, args, kwargs): + (parent, attribute, original) = resolve_path(module, name) + replacement = FunctionWrapper(original, target_wrapper) + setattr(parent, attribute, replacement) + try: + return wrapped(*args, **kwargs) + finally: + setattr(parent, attribute, original) + return FunctionWrapper(target_wrapped, _execute) + return FunctionWrapper(wrapper, _wrapper) + return _decorator + +# A weak function proxy. This will work on instance methods, class +# methods, static methods and regular functions. Special treatment is +# needed for the method types because the bound method is effectively a +# transient object and applying a weak reference to one will immediately +# result in it being destroyed and the weakref callback called. The weak +# reference is therefore applied to the instance the method is bound to +# and the original function. The function is then rebound at the point +# of a call via the weak function proxy. + +def _weak_function_proxy_callback(ref, proxy, callback): + if proxy._self_expired: + return + + proxy._self_expired = True + + # This could raise an exception. We let it propagate back and let + # the weakref.proxy() deal with it, at which point it generally + # prints out a short error message direct to stderr and keeps going. + + if callback is not None: + callback(proxy) + +class WeakFunctionProxy(ObjectProxy): + + __slots__ = ('_self_expired', '_self_instance') + + def __init__(self, wrapped, callback=None): + # We need to determine if the wrapped function is actually a + # bound method. In the case of a bound method, we need to keep a + # reference to the original unbound function and the instance. + # This is necessary because if we hold a reference to the bound + # function, it will be the only reference and given it is a + # temporary object, it will almost immediately expire and + # the weakref callback triggered. So what is done is that we + # hold a reference to the instance and unbound function and + # when called bind the function to the instance once again and + # then call it. Note that we avoid using a nested function for + # the callback here so as not to cause any odd reference cycles. + + _callback = callback and functools.partial( + _weak_function_proxy_callback, proxy=self, + callback=callback) + + self._self_expired = False + + if isinstance(wrapped, _FunctionWrapperBase): + self._self_instance = weakref.ref(wrapped._self_instance, + _callback) + + if wrapped._self_parent is not None: + super(WeakFunctionProxy, self).__init__( + weakref.proxy(wrapped._self_parent, _callback)) + + else: + super(WeakFunctionProxy, self).__init__( + weakref.proxy(wrapped, _callback)) + + return + + try: + self._self_instance = weakref.ref(wrapped.__self__, _callback) + + super(WeakFunctionProxy, self).__init__( + weakref.proxy(wrapped.__func__, _callback)) + + except AttributeError: + self._self_instance = None + + super(WeakFunctionProxy, self).__init__( + weakref.proxy(wrapped, _callback)) + + def __call__(self, *args, **kwargs): + # We perform a boolean check here on the instance and wrapped + # function as that will trigger the reference error prior to + # calling if the reference had expired. + + instance = self._self_instance and self._self_instance() + function = self.__wrapped__ and self.__wrapped__ + + # If the wrapped function was originally a bound function, for + # which we retained a reference to the instance and the unbound + # function we need to rebind the function and then call it. If + # not just called the wrapped function. + + if instance is None: + return self.__wrapped__(*args, **kwargs) + + return function.__get__(instance, type(instance))(*args, **kwargs) diff --git a/docker-compose.yml b/docker-compose.yml new file mode 100644 index 0000000000..2fb599cca1 --- /dev/null +++ b/docker-compose.yml @@ -0,0 +1,125 @@ +version: "3" +# remember to use this compose file __ONLY__ for development/testing purposes + +services: + elasticsearch: + image: elasticsearch:2.4-alpine + ports: + - "127.0.0.1:9200:9200" + cassandra: + image: spotify/cassandra:latest + environment: + - MAX_HEAP_SIZE=512M + - HEAP_NEWSIZE=256M + ports: + - "127.0.0.1:9042:9042" + consul: + image: consul:1.6.0 + ports: + - "127.0.0.1:8500:8500" + postgres: + image: postgres:10.5-alpine + environment: + - POSTGRES_PASSWORD=postgres + - POSTGRES_USER=postgres + - POSTGRES_DB=postgres + ports: + - "127.0.0.1:5432:5432" + mysql: + image: mysql:5.7 + environment: + - MYSQL_ROOT_PASSWORD=admin + - MYSQL_PASSWORD=test + - MYSQL_USER=test + - MYSQL_DATABASE=test + ports: + - "127.0.0.1:3306:3306" + redis: + image: redis:4.0-alpine + ports: + - "127.0.0.1:6379:6379" + rediscluster: + image: grokzen/redis-cluster:4.0.9 + environment: + - IP=0.0.0.0 + ports: + - "127.0.0.1:7000:7000" + - "127.0.0.1:7001:7001" + - "127.0.0.1:7002:7002" + - "127.0.0.1:7003:7003" + - "127.0.0.1:7004:7004" + - "127.0.0.1:7005:7005" + mongo: + image: mongo:3.6 + ports: + - "127.0.0.1:27017:27017" + memcached: + image: memcached:1.5-alpine + ports: + - "127.0.0.1:11211:11211" + moto: + # container that executes mocked AWS services; this is a custom + # build that runs all of them in a single container. It is built + # using this fork: https://github.com/palazzem/moto/tree/palazzem/docker-service + image: datadog/docker-library:moto_1_0_1 + ports: + - "127.0.0.1:5000:5000" + - "127.0.0.1:5001:5001" + - "127.0.0.1:5002:5002" + - "127.0.0.1:5003:5003" + - "127.0.0.1:5004:5004" + - "127.0.0.1:5005:5005" + rabbitmq: + image: rabbitmq:3.7-alpine + ports: + - "127.0.0.1:5672:5672" + ddagent: + image: datadog/agent-dev:gbbr-apm-build + environment: + - DD_BIND_HOST=0.0.0.0 + - DD_API_KEY=invalid_key_but_this_is_fine + - DD_APM_RECEIVER_SOCKET=/tmp/ddagent/trace.sock + ports: + - "127.0.0.1:8126:8126" + volumes: + - ddagent:/tmp/ddagent + + vertica: + image: sumitchawla/vertica + environment: + - VP_TEST_USER=dbadmin + - VP_TEST_PASSWORD=abc123 + - VP_TEST_DATABASE=docker + ports: + - "127.0.0.1:5433:5433" + + testrunner: + image: datadog/docker-library:ddtrace_py + environment: + - TOX_SKIP_DIST=True + - TEST_DATADOG_INTEGRATION=1 + - TEST_DATADOG_INTEGRATION_UDS=1 + network_mode: host + working_dir: /src + volumes: + - ddagent:/tmp/ddagent + - ./ddtrace:/src/ddtrace:ro + # DEV: Make ddtrace/vendor rw so Tox can build C-extensions + - ./ddtrace/vendor:/src/ddtrace/vendor:rw + - ./tests:/src/tests:ro + - ./setup.cfg:/src/setup.cfg:ro + - ./setup.py:/src/setup.py:ro + - ./conftest.py:/src/conftest.py:ro + - ./tox.ini:/src/tox.ini:ro + - ./docs:/src/docs:ro + - ./pyproject.toml:/src/pyproject.toml:ro + - ./.ddtox:/src/.tox + - ./scripts:/src/scripts + # setuptools_scm needs `.git` to figure out what version we are on + # DEV: We could use `SETUPTOOLS_SCM_PRETEND_VERSION` but prefer `.git` + # to get the same behavior as during releases + - ./.git:/src/.git:ro + command: bash + +volumes: + ddagent: diff --git a/docs/Makefile b/docs/Makefile new file mode 100644 index 0000000000..7b1ce33c23 --- /dev/null +++ b/docs/Makefile @@ -0,0 +1,225 @@ +# Makefile for Sphinx documentation +# + +# You can set these variables from the command line. +SPHINXOPTS = +SPHINXBUILD = sphinx-build +PAPER = +BUILDDIR = _build + +# Internal variables. +PAPEROPT_a4 = -D latex_paper_size=a4 +PAPEROPT_letter = -D latex_paper_size=letter +ALLSPHINXOPTS = -d $(BUILDDIR)/doctrees $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) . +# the i18n builder cannot share the environment and doctrees with the others +I18NSPHINXOPTS = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) . + +.PHONY: help +help: + @echo "Please use \`make ' where is one of" + @echo " html to make standalone HTML files" + @echo " dirhtml to make HTML files named index.html in directories" + @echo " singlehtml to make a single large HTML file" + @echo " pickle to make pickle files" + @echo " json to make JSON files" + @echo " htmlhelp to make HTML files and a HTML help project" + @echo " qthelp to make HTML files and a qthelp project" + @echo " applehelp to make an Apple Help Book" + @echo " devhelp to make HTML files and a Devhelp project" + @echo " epub to make an epub" + @echo " epub3 to make an epub3" + @echo " latex to make LaTeX files, you can set PAPER=a4 or PAPER=letter" + @echo " latexpdf to make LaTeX files and run them through pdflatex" + @echo " latexpdfja to make LaTeX files and run them through platex/dvipdfmx" + @echo " text to make text files" + @echo " man to make manual pages" + @echo " texinfo to make Texinfo files" + @echo " info to make Texinfo files and run them through makeinfo" + @echo " gettext to make PO message catalogs" + @echo " changes to make an overview of all changed/added/deprecated items" + @echo " xml to make Docutils-native XML files" + @echo " pseudoxml to make pseudoxml-XML files for display purposes" + @echo " linkcheck to check all external links for integrity" + @echo " doctest to run all doctests embedded in the documentation (if enabled)" + @echo " coverage to run coverage check of the documentation (if enabled)" + @echo " dummy to check syntax errors of document sources" + +.PHONY: clean +clean: + rm -rf $(BUILDDIR)/* + +.PHONY: html +html: + $(SPHINXBUILD) -b html $(ALLSPHINXOPTS) $(BUILDDIR)/html + @echo + @echo "Build finished. The HTML pages are in $(BUILDDIR)/html." + +.PHONY: dirhtml +dirhtml: + $(SPHINXBUILD) -b dirhtml $(ALLSPHINXOPTS) $(BUILDDIR)/dirhtml + @echo + @echo "Build finished. The HTML pages are in $(BUILDDIR)/dirhtml." + +.PHONY: singlehtml +singlehtml: + $(SPHINXBUILD) -b singlehtml $(ALLSPHINXOPTS) $(BUILDDIR)/singlehtml + @echo + @echo "Build finished. The HTML page is in $(BUILDDIR)/singlehtml." + +.PHONY: pickle +pickle: + $(SPHINXBUILD) -b pickle $(ALLSPHINXOPTS) $(BUILDDIR)/pickle + @echo + @echo "Build finished; now you can process the pickle files." + +.PHONY: json +json: + $(SPHINXBUILD) -b json $(ALLSPHINXOPTS) $(BUILDDIR)/json + @echo + @echo "Build finished; now you can process the JSON files." + +.PHONY: htmlhelp +htmlhelp: + $(SPHINXBUILD) -b htmlhelp $(ALLSPHINXOPTS) $(BUILDDIR)/htmlhelp + @echo + @echo "Build finished; now you can run HTML Help Workshop with the" \ + ".hhp project file in $(BUILDDIR)/htmlhelp." + +.PHONY: qthelp +qthelp: + $(SPHINXBUILD) -b qthelp $(ALLSPHINXOPTS) $(BUILDDIR)/qthelp + @echo + @echo "Build finished; now you can run "qcollectiongenerator" with the" \ + ".qhcp project file in $(BUILDDIR)/qthelp, like this:" + @echo "# qcollectiongenerator $(BUILDDIR)/qthelp/ddtrace.qhcp" + @echo "To view the help file:" + @echo "# assistant -collectionFile $(BUILDDIR)/qthelp/ddtrace.qhc" + +.PHONY: applehelp +applehelp: + $(SPHINXBUILD) -b applehelp $(ALLSPHINXOPTS) $(BUILDDIR)/applehelp + @echo + @echo "Build finished. The help book is in $(BUILDDIR)/applehelp." + @echo "N.B. You won't be able to view it unless you put it in" \ + "~/Library/Documentation/Help or install it in your application" \ + "bundle." + +.PHONY: devhelp +devhelp: + $(SPHINXBUILD) -b devhelp $(ALLSPHINXOPTS) $(BUILDDIR)/devhelp + @echo + @echo "Build finished." + @echo "To view the help file:" + @echo "# mkdir -p $$HOME/.local/share/devhelp/ddtrace" + @echo "# ln -s $(BUILDDIR)/devhelp $$HOME/.local/share/devhelp/ddtrace" + @echo "# devhelp" + +.PHONY: epub +epub: + $(SPHINXBUILD) -b epub $(ALLSPHINXOPTS) $(BUILDDIR)/epub + @echo + @echo "Build finished. The epub file is in $(BUILDDIR)/epub." + +.PHONY: epub3 +epub3: + $(SPHINXBUILD) -b epub3 $(ALLSPHINXOPTS) $(BUILDDIR)/epub3 + @echo + @echo "Build finished. The epub3 file is in $(BUILDDIR)/epub3." + +.PHONY: latex +latex: + $(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex + @echo + @echo "Build finished; the LaTeX files are in $(BUILDDIR)/latex." + @echo "Run \`make' in that directory to run these through (pdf)latex" \ + "(use \`make latexpdf' here to do that automatically)." + +.PHONY: latexpdf +latexpdf: + $(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex + @echo "Running LaTeX files through pdflatex..." + $(MAKE) -C $(BUILDDIR)/latex all-pdf + @echo "pdflatex finished; the PDF files are in $(BUILDDIR)/latex." + +.PHONY: latexpdfja +latexpdfja: + $(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex + @echo "Running LaTeX files through platex and dvipdfmx..." + $(MAKE) -C $(BUILDDIR)/latex all-pdf-ja + @echo "pdflatex finished; the PDF files are in $(BUILDDIR)/latex." + +.PHONY: text +text: + $(SPHINXBUILD) -b text $(ALLSPHINXOPTS) $(BUILDDIR)/text + @echo + @echo "Build finished. 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+{% endif %} diff --git a/docs/advanced_usage.rst b/docs/advanced_usage.rst new file mode 100644 index 0000000000..10671be58e --- /dev/null +++ b/docs/advanced_usage.rst @@ -0,0 +1,639 @@ +Advanced Usage +============== + +Agent Configuration +------------------- + +If the Datadog Agent is on a separate host from your application, you can modify +the default ``ddtrace.tracer`` object to utilize another hostname and port. Here +is a small example showcasing this:: + + from ddtrace import tracer + + tracer.configure(hostname=, port=, https=) + +By default, these will be set to ``localhost``, ``8126``, and ``False`` respectively. + +You can also use a Unix Domain Socket to connect to the agent:: + + from ddtrace import tracer + + tracer.configure(uds_path="/path/to/socket") + + +Distributed Tracing +------------------- + +To trace requests across hosts, the spans on the secondary hosts must be linked together by setting `trace_id`, `parent_id` and `sampling_priority`. + +- On the server side, it means to read propagated attributes and set them to the active tracing context. +- On the client side, it means to propagate the attributes, commonly as a header/metadata. + +`ddtrace` already provides default propagators but you can also implement your own. + +Web Frameworks +^^^^^^^^^^^^^^ + +Some web framework integrations support distributed tracing out of the box. + +Supported web frameworks: + + ++-------------------+---------+ +| Framework/Library | Enabled | ++===================+=========+ +| :ref:`aiohttp` | True | ++-------------------+---------+ +| :ref:`bottle` | True | ++-------------------+---------+ +| :ref:`django` | True | ++-------------------+---------+ +| :ref:`falcon` | True | ++-------------------+---------+ +| :ref:`flask` | True | ++-------------------+---------+ +| :ref:`pylons` | True | ++-------------------+---------+ +| :ref:`pyramid` | True | ++-------------------+---------+ +| :ref:`requests` | True | ++-------------------+---------+ +| :ref:`tornado` | True | ++-------------------+---------+ + + +HTTP Client +^^^^^^^^^^^ + +For distributed tracing to work, necessary tracing information must be passed +alongside a request as it flows through the system. When the request is handled +on the other side, the metadata is retrieved and the trace can continue. + +To propagate the tracing information, HTTP headers are used to transmit the +required metadata to piece together the trace. + +.. autoclass:: ddtrace.propagation.http.HTTPPropagator + :members: + +Custom +^^^^^^ + +You can manually propagate your tracing context over your RPC protocol. Here is +an example assuming that you have `rpc.call` function that call a `method` and +propagate a `rpc_metadata` dictionary over the wire:: + + + # Implement your own context propagator + class MyRPCPropagator(object): + def inject(self, span_context, rpc_metadata): + rpc_metadata.update({ + 'trace_id': span_context.trace_id, + 'span_id': span_context.span_id, + 'sampling_priority': span_context.sampling_priority, + }) + + def extract(self, rpc_metadata): + return Context( + trace_id=rpc_metadata['trace_id'], + span_id=rpc_metadata['span_id'], + sampling_priority=rpc_metadata['sampling_priority'], + ) + + # On the parent side + def parent_rpc_call(): + with tracer.trace("parent_span") as span: + rpc_metadata = {} + propagator = MyRPCPropagator() + propagator.inject(span.context, rpc_metadata) + method = "" + rpc.call(method, metadata) + + # On the child side + def child_rpc_call(method, rpc_metadata): + propagator = MyRPCPropagator() + context = propagator.extract(rpc_metadata) + tracer.context_provider.activate(context) + + with tracer.trace("child_span") as span: + span.set_meta('my_rpc_method', method) + + +Sampling +-------- + +.. _`Priority Sampling`: + +Priority Sampling +^^^^^^^^^^^^^^^^^ + +To learn about what sampling is check out our documentation `here +`_. + +By default priorities are set on a trace by a sampler. The sampler can set the +priority to the following values: + +- ``AUTO_REJECT``: the sampler automatically rejects the trace +- ``AUTO_KEEP``: the sampler automatically keeps the trace + +Priority sampling is enabled by default. +When enabled, the sampler will automatically assign a priority to your traces, +depending on their service and volume. +This ensures that your sampled distributed traces will be complete. + +You can also set this priority manually to either drop an uninteresting trace or +to keep an important one. +To do this, set the ``context.sampling_priority`` to one of the following: + +- ``USER_REJECT``: the user asked to reject the trace +- ``USER_KEEP``: the user asked to keep the trace + +When not using distributed tracing, you may change the priority at any time, as +long as the trace is not finished yet. +But it has to be done before any context propagation (fork, RPC calls) to be +effective in a distributed context. +Changing the priority after context has been propagated causes different parts +of a distributed trace to use different priorities. Some parts might be kept, +some parts might be rejected, and this can cause the trace to be partially +stored and remain incomplete. + +If you change the priority, we recommend you do it as soon as possible, when the +root span has just been created:: + + from ddtrace.ext.priority import USER_REJECT, USER_KEEP + + context = tracer.context_provider.active() + + # indicate to not keep the trace + context.sampling_priority = USER_REJECT + + +Client Sampling +^^^^^^^^^^^^^^^ + +Client sampling enables the sampling of traces before they are sent to the +Agent. This can provide some performance benefit as the traces will be +dropped in the client. + +The ``RateSampler`` randomly samples a percentage of traces:: + + from ddtrace.sampler import RateSampler + + # Sample rate is between 0 (nothing sampled) to 1 (everything sampled). + # Keep 20% of the traces. + sample_rate = 0.2 + tracer.sampler = RateSampler(sample_rate) + + +Trace Search & Analytics +------------------------ + +Use `Trace Search & Analytics `_ to filter application performance metrics and APM Events by user-defined tags. An APM event is generated every time a trace is generated. + +Enabling APM events for all web frameworks can be accomplished by setting the environment variable ``DD_TRACE_ANALYTICS_ENABLED=true``: + +* :ref:`aiohttp` +* :ref:`bottle` +* :ref:`django` +* :ref:`falcon` +* :ref:`flask` +* :ref:`molten` +* :ref:`pylons` +* :ref:`pyramid` +* :ref:`requests` +* :ref:`tornado` + + +For most libraries, APM events can be enabled with the environment variable ``DD_{INTEGRATION}_ANALYTICS_ENABLED=true``: + ++----------------------+----------------------------------------+ +| Library | Environment Variable | ++======================+========================================+ +| :ref:`aiobotocore` | ``DD_AIOBOTOCORE_ANALYTICS_ENABLED`` | ++----------------------+----------------------------------------+ +| :ref:`aiopg` | ``DD_AIOPG_ANALYTICS_ENABLED`` | ++----------------------+----------------------------------------+ +| :ref:`boto` | ``DD_BOTO_ANALYTICS_ENABLED`` | ++----------------------+----------------------------------------+ +| :ref:`botocore` | ``DD_BOTOCORE_ANALYTICS_ENABLED`` | ++----------------------+----------------------------------------+ +| :ref:`bottle` | ``DD_BOTTLE_ANALYTICS_ENABLED`` | ++----------------------+----------------------------------------+ +| :ref:`cassandra` | ``DD_CASSANDRA_ANALYTICS_ENABLED`` | ++----------------------+----------------------------------------+ +| :ref:`elasticsearch` | ``DD_ELASTICSEARCH_ANALYTICS_ENABLED`` | ++----------------------+----------------------------------------+ +| :ref:`falcon` | ``DD_FALCON_ANALYTICS_ENABLED`` | ++----------------------+----------------------------------------+ +| :ref:`flask` | ``DD_FLASK_ANALYTICS_ENABLED`` | ++----------------------+----------------------------------------+ +| :ref:`flask_cache` | ``DD_FLASK_CACHE_ANALYTICS_ENABLED`` | ++----------------------+----------------------------------------+ +| :ref:`grpc` | ``DD_GRPC_ANALYTICS_ENABLED`` | ++----------------------+----------------------------------------+ +| :ref:`httplib` | ``DD_HTTPLIB_ANALYTICS_ENABLED`` | ++----------------------+----------------------------------------+ +| :ref:`kombu` | ``DD_KOMBU_ANALYTICS_ENABLED`` | ++----------------------+----------------------------------------+ +| :ref:`molten` | ``DD_MOLTEN_ANALYTICS_ENABLED`` | ++----------------------+----------------------------------------+ +| :ref:`pylibmc` | ``DD_PYLIBMC_ANALYTICS_ENABLED`` | ++----------------------+----------------------------------------+ +| :ref:`pylons` | ``DD_PYLONS_ANALYTICS_ENABLED`` | ++----------------------+----------------------------------------+ +| :ref:`pymemcache` | ``DD_PYMEMCACHE_ANALYTICS_ENABLED`` | ++----------------------+----------------------------------------+ +| :ref:`pymongo` | ``DD_PYMONGO_ANALYTICS_ENABLED`` | ++----------------------+----------------------------------------+ +| :ref:`redis` | ``DD_REDIS_ANALYTICS_ENABLED`` | ++----------------------+----------------------------------------+ +| :ref:`rediscluster` | ``DD_REDISCLUSTER_ANALYTICS_ENABLED`` | ++----------------------+----------------------------------------+ +| :ref:`sqlalchemy` | ``DD_SQLALCHEMY_ANALYTICS_ENABLED`` | ++----------------------+----------------------------------------+ +| :ref:`vertica` | ``DD_VERTICA_ANALYTICS_ENABLED`` | ++----------------------+----------------------------------------+ + +For datastore libraries that extend another, use the setting for the underlying library: + ++------------------------+----------------------------------+ +| Library | Environment Variable | ++========================+==================================+ +| :ref:`mongoengine` | ``DD_PYMONGO_ANALYTICS_ENABLED`` | ++------------------------+----------------------------------+ +| :ref:`mysql-connector` | ``DD_DBAPI2_ANALYTICS_ENABLED`` | ++------------------------+----------------------------------+ +| :ref:`mysqldb` | ``DD_DBAPI2_ANALYTICS_ENABLED`` | ++------------------------+----------------------------------+ +| :ref:`psycopg2` | ``DD_DBAPI2_ANALYTICS_ENABLED`` | ++------------------------+----------------------------------+ +| :ref:`pymysql` | ``DD_DBAPI2_ANALYTICS_ENABLED`` | ++------------------------+----------------------------------+ +| :ref:`sqllite` | ``DD_DBAPI2_ANALYTICS_ENABLED`` | ++------------------------+----------------------------------+ + +Where environment variables are not used for configuring the tracer, the instructions for configuring trace analytics is provided in the library documentation: + +* :ref:`aiohttp` +* :ref:`django` +* :ref:`pyramid` +* :ref:`requests` +* :ref:`tornado` + +Resolving deprecation warnings +------------------------------ +Before upgrading, it’s a good idea to resolve any deprecation warnings raised by your project. +These warnings must be fixed before upgrading, otherwise the ``ddtrace`` library +will not work as expected. Our deprecation messages include the version where +the behavior is altered or removed. + +In Python, deprecation warnings are silenced by default. To enable them you may +add the following flag or environment variable:: + + $ python -Wall app.py + + # or + + $ PYTHONWARNINGS=all python app.py + + +Trace Filtering +--------------- + +It is possible to filter or modify traces before they are sent to the Agent by +configuring the tracer with a filters list. For instance, to filter out +all traces of incoming requests to a specific url:: + + Tracer.configure(settings={ + 'FILTERS': [ + FilterRequestsOnUrl(r'http://test\.example\.com'), + ], + }) + +All the filters in the filters list will be evaluated sequentially +for each trace and the resulting trace will either be sent to the Agent or +discarded depending on the output. + +**Use the standard filters** + +The library comes with a ``FilterRequestsOnUrl`` filter that can be used to +filter out incoming requests to specific urls: + +.. autoclass:: ddtrace.filters.FilterRequestsOnUrl + :members: + +**Write a custom filter** + +Creating your own filters is as simple as implementing a class with a +``process_trace`` method and adding it to the filters parameter of +Tracer.configure. process_trace should either return a trace to be fed to the +next step of the pipeline or ``None`` if the trace should be discarded:: + + class FilterExample(object): + def process_trace(self, trace): + # write here your logic to return the `trace` or None; + # `trace` instance is owned by the thread and you can alter + # each single span or the whole trace if needed + + # And then instantiate it with + filters = [FilterExample()] + Tracer.configure(settings={'FILTERS': filters}) + +(see filters.py for other example implementations) + +.. _`Logs Injection`: + +Logs Injection +-------------- + +.. automodule:: ddtrace.contrib.logging + +HTTP layer +---------- + +Query String Tracing +^^^^^^^^^^^^^^^^^^^^ + +It is possible to store the query string of the URL — the part after the ``?`` +in your URL — in the ``url.query.string`` tag. + +Configuration can be provided both at the global level and at the integration level. + +Examples:: + + from ddtrace import config + + # Global config + config.http.trace_query_string = True + + # Integration level config, e.g. 'falcon' + config.falcon.http.trace_query_string = True + +.. _http-headers-tracing: + +Headers tracing +^^^^^^^^^^^^^^^ + + +For a selected set of integrations, it is possible to store http headers from both requests and responses in tags. + +Configuration can be provided both at the global level and at the integration level. + +Examples:: + + from ddtrace import config + + # Global config + config.trace_headers([ + 'user-agent', + 'transfer-encoding', + ]) + + # Integration level config, e.g. 'falcon' + config.falcon.http.trace_headers([ + 'user-agent', + 'some-other-header', + ]) + +The following rules apply: + - headers configuration is based on a whitelist. If a header does not appear in the whitelist, it won't be traced. + - headers configuration is case-insensitive. + - if you configure a specific integration, e.g. 'requests', then such configuration overrides the default global + configuration, only for the specific integration. + - if you do not configure a specific integration, then the default global configuration applies, if any. + - if no configuration is provided (neither global nor integration-specific), then headers are not traced. + +Once you configure your application for tracing, you will have the headers attached to the trace as tags, with a +structure like in the following example:: + + http { + method GET + request { + headers { + user_agent my-app/0.0.1 + } + } + response { + headers { + transfer_encoding chunked + } + } + status_code 200 + url https://api.github.com/events + } + + +.. _adv_opentracing: + +OpenTracing +----------- + + +The Datadog opentracer can be configured via the ``config`` dictionary +parameter to the tracer which accepts the following described fields. See below +for usage. + ++---------------------+----------------------------------------+---------------+ +| Configuration Key | Description | Default Value | ++=====================+========================================+===============+ +| `enabled` | enable or disable the tracer | `True` | ++---------------------+----------------------------------------+---------------+ +| `debug` | enable debug logging | `False` | ++---------------------+----------------------------------------+---------------+ +| `agent_hostname` | hostname of the Datadog agent to use | `localhost` | ++---------------------+----------------------------------------+---------------+ +| `agent_https` | use https to connect to the agent | `False` | ++---------------------+----------------------------------------+---------------+ +| `agent_port` | port the Datadog agent is listening on | `8126` | ++---------------------+----------------------------------------+---------------+ +| `global_tags` | tags that will be applied to each span | `{}` | ++---------------------+----------------------------------------+---------------+ +| `sampler` | see `Sampling`_ | `AllSampler` | ++---------------------+----------------------------------------+---------------+ +| `priority_sampling` | see `Priority Sampling`_ | `True` | ++---------------------+----------------------------------------+---------------+ +| `settings` | see `Advanced Usage`_ | `{}` | ++---------------------+----------------------------------------+---------------+ + + +Usage +^^^^^ + +**Manual tracing** + +To explicitly trace:: + + import time + import opentracing + from ddtrace.opentracer import Tracer, set_global_tracer + + def init_tracer(service_name): + config = { + 'agent_hostname': 'localhost', + 'agent_port': 8126, + } + tracer = Tracer(service_name, config=config) + set_global_tracer(tracer) + return tracer + + def my_operation(): + span = opentracing.tracer.start_span('my_operation_name') + span.set_tag('my_interesting_tag', 'my_interesting_value') + time.sleep(0.05) + span.finish() + + init_tracer('my_service_name') + my_operation() + +**Context Manager Tracing** + +To trace a function using the span context manager:: + + import time + import opentracing + from ddtrace.opentracer import Tracer, set_global_tracer + + def init_tracer(service_name): + config = { + 'agent_hostname': 'localhost', + 'agent_port': 8126, + } + tracer = Tracer(service_name, config=config) + set_global_tracer(tracer) + return tracer + + def my_operation(): + with opentracing.tracer.start_span('my_operation_name') as span: + span.set_tag('my_interesting_tag', 'my_interesting_value') + time.sleep(0.05) + + init_tracer('my_service_name') + my_operation() + +See our tracing trace-examples_ repository for concrete, runnable examples of +the Datadog opentracer. + +.. _trace-examples: https://github.com/DataDog/trace-examples/tree/master/python + +See also the `Python OpenTracing`_ repository for usage of the tracer. + +.. _Python OpenTracing: https://github.com/opentracing/opentracing-python + + +**Alongside Datadog tracer** + +The Datadog OpenTracing tracer can be used alongside the Datadog tracer. This +provides the advantage of providing tracing information collected by +``ddtrace`` in addition to OpenTracing. The simplest way to do this is to use +the :ref:`ddtrace-run` command to invoke your OpenTraced +application. + + +**Opentracer API** + +.. autoclass:: ddtrace.opentracer.Tracer + :members: + :special-members: __init__ + + +.. _ddtracerun: + +``ddtrace-run`` +--------------- + +``ddtrace-run`` will trace :ref:`supported` web frameworks +and database modules without the need for changing your code:: + + $ ddtrace-run -h + + Execute the given Python program, after configuring it + to emit Datadog traces. + + Append command line arguments to your program as usual. + + Usage: [ENV_VARS] ddtrace-run + + +The available environment variables for ``ddtrace-run`` are: + +* ``DATADOG_TRACE_ENABLED=true|false`` (default: true): Enable web framework and + library instrumentation. When false, your application code will not generate + any traces. +* ``DATADOG_ENV`` (no default): Set an application's environment e.g. ``prod``, + ``pre-prod``, ``stage`` +* ``DATADOG_TRACE_DEBUG=true|false`` (default: false): Enable debug logging in + the tracer +* ``DATADOG_SERVICE_NAME`` (no default): override the service name to be used + for this program. This value is passed through when setting up middleware for + web framework integrations (e.g. pylons, flask, django). For tracing without a + web integration, prefer setting the service name in code. +* ``DATADOG_PATCH_MODULES=module:patch,module:patch...`` e.g. + ``boto:true,redis:false``: override the modules patched for this execution of + the program (default: none) +* ``DATADOG_TRACE_AGENT_HOSTNAME=localhost``: override the address of the trace + agent host that the default tracer will attempt to submit to (default: + ``localhost``) +* ``DATADOG_TRACE_AGENT_PORT=8126``: override the port that the default tracer + will submit to (default: 8126) +* ``DATADOG_PRIORITY_SAMPLING`` (default: true): enables :ref:`Priority + Sampling` +* ``DD_LOGS_INJECTION`` (default: false): enables :ref:`Logs Injection` + +``ddtrace-run`` respects a variety of common entrypoints for web applications: + +- ``ddtrace-run python my_app.py`` +- ``ddtrace-run python manage.py runserver`` +- ``ddtrace-run gunicorn myapp.wsgi:application`` +- ``ddtrace-run uwsgi --http :9090 --wsgi-file my_app.py`` + + +Pass along command-line arguments as your program would normally expect them:: + +$ ddtrace-run gunicorn myapp.wsgi:application --max-requests 1000 --statsd-host localhost:8125 + +If you're running in a Kubernetes cluster and still don't see your traces, make +sure your application has a route to the tracing Agent. An easy way to test +this is with a:: + +$ pip install ipython +$ DATADOG_TRACE_DEBUG=true ddtrace-run ipython + +Because iPython uses SQLite, it will be automatically instrumented and your +traces should be sent off. If an error occurs, a message will be displayed in +the console, and changes can be made as needed. + + +API +--- + +``Tracer`` +^^^^^^^^^^ +.. autoclass:: ddtrace.Tracer + :members: + :special-members: __init__ + + +``Span`` +^^^^^^^^ +.. autoclass:: ddtrace.Span + :members: + :special-members: __init__ + +``Pin`` +^^^^^^^ +.. autoclass:: ddtrace.Pin + :members: + :special-members: __init__ + +.. _patch_all: + +``patch_all`` +^^^^^^^^^^^^^ + +.. autofunction:: ddtrace.monkey.patch_all + +``patch`` +^^^^^^^^^ +.. autofunction:: ddtrace.monkey.patch + +.. toctree:: + :maxdepth: 2 diff --git a/docs/async_integrations.rst b/docs/async_integrations.rst new file mode 100644 index 0000000000..6be816c1cb --- /dev/null +++ b/docs/async_integrations.rst @@ -0,0 +1,18 @@ +Asynchronous Libraries +---------------------- + +.. _asyncio: + +asyncio +^^^^^^^ + +.. automodule:: ddtrace.contrib.asyncio + + +.. _gevent: + +gevent +^^^^^^ + +.. automodule:: ddtrace.contrib.gevent + diff --git a/docs/basic_usage.rst b/docs/basic_usage.rst new file mode 100644 index 0000000000..9c79426730 --- /dev/null +++ b/docs/basic_usage.rst @@ -0,0 +1,107 @@ +.. _`basic usage`: + +Basic Usage +=========== + +With ``ddtrace`` installed, the application can be instrumented. + + +Auto Instrumentation +-------------------- + +``ddtrace-run`` +^^^^^^^^^^^^^^^ + +Python applications can easily be instrumented with ``ddtrace`` by using the +included ``ddtrace-run`` command. Simply prefix your Python execution command +with ``ddtrace-run`` in order to auto-instrument the libraries in your +application. + +For example, if the command to run your application is:: + +$ python app.py + +then to auto-instrument using Datadog, the corresponding command is:: + +$ ddtrace-run python app.py + +For more advanced usage of ``ddtrace-run`` refer to the documentation :ref:`here`. + +``patch_all`` +^^^^^^^^^^^^^ + +To manually invoke the automatic instrumentation use ``patch_all``:: + + from ddtrace import patch_all + patch_all() + +To toggle instrumentation for a particular module:: + + from ddtrace import patch_all + patch_all(redis=False, cassandra=False) + +By default all supported libraries will be patched when +``patch_all`` is invoked. + +**Note:** To ensure that the supported libraries are instrumented properly in +the application, they must be patched *prior* to being imported. So make sure +to call ``patch_all`` *before* importing libraries that are to be instrumented. + +More information about ``patch_all`` is available in our :ref:`patch_all` API +documentation. + + +Manual Instrumentation +---------------------- + +If you would like to extend the functionality of the ``ddtrace`` library or gain +finer control over instrumenting your application, several techniques are +provided by the library. + +Decorator +^^^^^^^^^ + +``ddtrace`` provides a decorator that can be used to trace a particular method +in your application:: + + @tracer.wrap() + def business_logic(): + """A method that would be of interest to trace.""" + # ... + # ... + +API details of the decorator can be found here :py:meth:`ddtrace.Tracer.wrap`. + +Context Manager +^^^^^^^^^^^^^^^ + +To trace an arbitrary block of code, you can use :py:meth:`ddtrace.Tracer.trace` +that returns a :py:mod:`ddtrace.Span` which can be used as a context manager:: + + # trace some interesting operation + with tracer.trace('interesting.operations'): + # do some interesting operation(s) + # ... + # ... + +Further API details can be found here :py:meth:`ddtrace.Tracer`. + +Using the API +^^^^^^^^^^^^^ + +If the above methods are still not enough to satisfy your tracing needs, a +manual API is provided which will allow you to start and finish spans however +you may require:: + + span = tracer.trace('operations.of.interest') + + # do some operation(s) of interest in between + + # NOTE: make sure to call span.finish() or the entire trace will not be sent + # to Datadog + span.finish() + +API details of the decorator can be found here: + +- :py:meth:`ddtrace.Tracer.trace` +- :py:meth:`ddtrace.Span.finish`. diff --git a/docs/conf.py b/docs/conf.py new file mode 100644 index 0000000000..9357dcd83c --- /dev/null +++ b/docs/conf.py @@ -0,0 +1,347 @@ +# -*- coding: utf-8 -*- +# +# ddtrace documentation build configuration file, created by +# sphinx-quickstart on Thu Jul 7 17:25:05 2016. +# +# This file is execfile()d with the current directory set to its +# containing dir. +# +# Note that not all possible configuration values are present in this +# autogenerated file. +# +# All configuration values have a default; values that are commented out +# serve to show the default. + +# If extensions (or modules to document with autodoc) are in another directory, +# add these directories to sys.path here. If the directory is relative to the +# documentation root, use os.path.abspath to make it absolute, like shown here. +# + +import os +import sys +from datetime import datetime + + +# append the ddtrace path to syspath +sys.path.insert(0, os.path.abspath("..")) + + +# -- General configuration ------------------------------------------------ + +# If your documentation needs a minimal Sphinx version, state it here. +# +# needs_sphinx = '1.0' + +# Add any Sphinx extension module names here, as strings. They can be +# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom +# ones. +extensions = [ + "sphinx.ext.autodoc", + "sphinx.ext.extlinks", +] + +# Add any paths that contain templates here, relative to this directory. +templates_path = ["_templates"] + +# The suffix(es) of source filenames. +# You can specify multiple suffix as a list of string: +# +# source_suffix = ['.rst', '.md'] +source_suffix = ".rst" + +# The encoding of source files. +# +# source_encoding = 'utf-8-sig' + +# The master toctree document. +master_doc = "index" + +# General information about the project. +year = datetime.now().year +project = u"ddtrace" +copyright = u"2016-{}, Datadog, Inc.".format(year) # noqa: A001 +author = u"Datadog, Inc." + +# document in order of source +autodoc_member_order = "bysource" + + +# The version info for the project you're documenting, acts as replacement for +# |version| and |release|, also used in various other places throughout the +# built documents. +# +# The short X.Y version. +# version = u'0.2' +# The full version, including alpha/beta/rc tags. +# release = u'0.2' + +# The language for content autogenerated by Sphinx. Refer to documentation +# for a list of supported languages. +# +# This is also used if you do content translation via gettext catalogs. +# Usually you set "language" from the command line for these cases. +language = None + +# There are two options for replacing |today|: either, you set today to some +# non-false value, then it is used: +# +# today = '' +# +# Else, today_fmt is used as the format for a strftime call. +# +# today_fmt = '%B %d, %Y' + +# List of patterns, relative to source directory, that match files and +# directories to ignore when looking for source files. +# This patterns also effect to html_static_path and html_extra_path +exclude_patterns = ["_build", "Thumbs.db", ".DS_Store"] + +# The reST default role (used for this markup: `text`) to use for all +# documents. +# +# default_role = None + +# If true, '()' will be appended to :func: etc. cross-reference text. +# +# add_function_parentheses = True + +# If true, the current module name will be prepended to all description +# unit titles (such as .. function::). +# +# add_module_names = True + +# If true, sectionauthor and moduleauthor directives will be shown in the +# output. They are ignored by default. +# +# show_authors = False + +# The name of the Pygments (syntax highlighting) style to use. +pygments_style = "sphinx" + +# A list of ignored prefixes for module index sorting. +# modindex_common_prefix = [] + +# If true, keep warnings as "system message" paragraphs in the built documents. +# keep_warnings = False + +# If true, `todo` and `todoList` produce output, else they produce nothing. +todo_include_todos = False + + +# -- Options for HTML output ---------------------------------------------- + +# The theme to use for HTML and HTML Help pages. See the documentation for +# a list of builtin themes. +# +html_theme = "alabaster" + +# Theme options are theme-specific and customize the look and feel of a theme +# further. For a list of options available for each theme, see the +# documentation. +# +html_theme_options = { + "description": "Datadog's Python tracing client", +} + +# Add any paths that contain custom themes here, relative to this directory. +# html_theme_path = [] + +# The name for this set of Sphinx documents. +# " v documentation" by default. +# +# html_title = u'ddtrace v0.2' + +# A shorter title for the navigation bar. Default is the same as html_title. +# +# html_short_title = None + +# The name of an image file (relative to this directory) to place at the top +# of the sidebar. +# +# html_logo = None + +# The name of an image file (relative to this directory) to use as a favicon of +# the docs. This file should be a Windows icon file (.ico) being 16x16 or 32x32 +# pixels large. +# +# html_favicon = None + +# Add any paths that contain custom static files (such as style sheets) here, +# relative to this directory. They are copied after the builtin static files, +# so a file named "default.css" will overwrite the builtin "default.css". +# html_static_path = ['_static'] + +# Add any extra paths that contain custom files (such as robots.txt or +# .htaccess) here, relative to this directory. These files are copied +# directly to the root of the documentation. +# +# html_extra_path = [] + +# If not None, a 'Last updated on:' timestamp is inserted at every page +# bottom, using the given strftime format. +# The empty string is equivalent to '%b %d, %Y'. +# +# html_last_updated_fmt = None + +# If true, SmartyPants will be used to convert quotes and dashes to +# typographically correct entities. +# +# html_use_smartypants = True + +# Custom sidebar templates, maps document names to template names. +# +html_sidebars = {"**": ["about.html", "nav.html", "relations.html", "searchbox.html"]} + +# Additional templates that should be rendered to pages, maps page names to +# template names. +# +# html_additional_pages = {} + +# If false, no module index is generated. +# +# html_domain_indices = True + +# If false, no index is generated. +# +# html_use_index = True + +# If true, the index is split into individual pages for each letter. +# +# html_split_index = False + +# If true, links to the reST sources are added to the pages. +# +# html_show_sourcelink = True + +# If true, "Created using Sphinx" is shown in the HTML footer. Default is True. +# +# html_show_sphinx = True + +# If true, "(C) Copyright ..." is shown in the HTML footer. Default is True. +# +# html_show_copyright = True + +# If true, an OpenSearch description file will be output, and all pages will +# contain a tag referring to it. The value of this option must be the +# base URL from which the finished HTML is served. +# +# html_use_opensearch = '' + +# This is the file name suffix for HTML files (e.g. ".xhtml"). +# html_file_suffix = None + +# Language to be used for generating the HTML full-text search index. +# Sphinx supports the following languages: +# 'da', 'de', 'en', 'es', 'fi', 'fr', 'hu', 'it', 'ja' +# 'nl', 'no', 'pt', 'ro', 'ru', 'sv', 'tr', 'zh' +# +# html_search_language = 'en' + +# A dictionary with options for the search language support, empty by default. +# 'ja' uses this config value. +# 'zh' user can custom change `jieba` dictionary path. +# +# html_search_options = {'type': 'default'} + +# The name of a javascript file (relative to the configuration directory) that +# implements a search results scorer. If empty, the default will be used. +# +# html_search_scorer = 'scorer.js' + +# Output file base name for HTML help builder. +htmlhelp_basename = "ddtracedoc" + +# -- Options for LaTeX output --------------------------------------------- + +latex_elements = { + # The paper size ('letterpaper' or 'a4paper'). + # + # 'papersize': 'letterpaper', + # The font size ('10pt', '11pt' or '12pt'). + # + # 'pointsize': '10pt', + # Additional stuff for the LaTeX preamble. + # + # 'preamble': '', + # Latex figure (float) alignment + # + # 'figure_align': 'htbp', +} + +# Grouping the document tree into LaTeX files. List of tuples +# (source start file, target name, title, +# author, documentclass [howto, manual, or own class]). +latex_documents = [ + (master_doc, "ddtrace.tex", u"ddtrace Documentation", u"Datadog, Inc", "manual"), +] + +# The name of an image file (relative to this directory) to place at the top of +# the title page. +# +# latex_logo = None + +# For "manual" documents, if this is true, then toplevel headings are parts, +# not chapters. +# +# latex_use_parts = False + +# If true, show page references after internal links. +# +# latex_show_pagerefs = False + +# If true, show URL addresses after external links. +# +# latex_show_urls = False + +# Documents to append as an appendix to all manuals. +# +# latex_appendices = [] + +# If false, no module index is generated. +# +# latex_domain_indices = True + + +# -- Options for manual page output --------------------------------------- + +# One entry per manual page. List of tuples +# (source start file, name, description, authors, manual section). +man_pages = [(master_doc, "ddtrace", u"ddtrace Documentation", [author], 1)] + +# If true, show URL addresses after external links. +# +# man_show_urls = False + + +# -- Options for Texinfo output ------------------------------------------- + +# Grouping the document tree into Texinfo files. List of tuples +# (source start file, target name, title, author, +# dir menu entry, description, category) +texinfo_documents = [ + ( + master_doc, + "ddtrace", + u"ddtrace Documentation", + author, + "ddtrace", + "One line description of project.", + "Miscellaneous", + ), +] + +# Documents to append as an appendix to all manuals. +# +# texinfo_appendices = [] + +# If false, no module index is generated. +# +# texinfo_domain_indices = True + +# How to display URL addresses: 'footnote', 'no', or 'inline'. +# +# texinfo_show_urls = 'footnote' + +# If true, do not generate a @detailmenu in the "Top" node's menu. +# +# texinfo_no_detailmenu = False diff --git a/docs/contributing.rst b/docs/contributing.rst new file mode 100644 index 0000000000..d7e8af6121 --- /dev/null +++ b/docs/contributing.rst @@ -0,0 +1,87 @@ +============== + Contributing +============== + +When contributing to this repository, we advise you to discuss the change you +wish to make via an `issue `_. + +Branches +======== + +Developement happens in the `master` branch. When all the features for the next +milestone are merged, the next version is released and tagged on the `master` +branch as `vVERSION`. + +Your pull request should targets the `master` branch. + +Once a new version is released, a `release/VERSION` branch might be created to +support micro releases to `VERSION`. Patches should be cherry-picking from the +`master` branch where possible — or otherwise created from scratch. + + +Pull Request Process +==================== + +In order to be merged, a pull request needs to meet the following +conditions: + +1. The test suite must pass. +2. One of the repository Members must approve the pull request. +3. Proper unit and integration testing must be implemented. +4. Proper documentation must be written. + +Splitting Pull Requests +======================= + +If you discussed your feature within an issue (as advised), there's a great +chance that the implementation appears doable in several steps. In order to +facilite the review process, we strongly advise to split your feature +implementation in small pull requests (if that is possible) so they contain a +very small number of commits (a single commit per pull request being optimal). + +That ensures that: + +1. Each commit passes the test suite. +2. The code reviewing process done by humans is easier as there is less code to + understand at a glance. + +Internal API +============ + +The `ddtrace.internal` module contains code that must only be used inside +`ddtrace` itself. Relying on the API of this module is dangerous and can break +at anytime. Don't do it. + +Python Versions and Implementations Support +=========================================== + +The following Python implementations are supported: + +- CPython + +Versions of those implementations that are supported are the Python versions +that are currently supported by the community. + +Libraries Support +================= + +External libraries support is implemented in submodules of the `ddtest.contrib` +module. + +Our goal is to support: + +- The latest version of a library. +- All versions of a library that have been released less than 1 year ago. + +Support for older versions of a library will be kept as long as possible as +long as it can be done without too much pain and backward compatibility — on a +best effort basis. Therefore, support for old versions of a library might be +dropped from the testing pipeline at anytime. + +Code Style +========== + +The code style is enforced by `flake8 `_, its +configuration, and possibly extensions. No code style review should be done by +a human. All code style enforcement must be automatized to avoid bikeshedding +and losing time. diff --git a/docs/db_integrations.rst b/docs/db_integrations.rst new file mode 100644 index 0000000000..d48758ca40 --- /dev/null +++ b/docs/db_integrations.rst @@ -0,0 +1,177 @@ +Datastore Libraries +=================== + +.. _algoliasearch: + +Algoliasearch +------------- + +.. automodule:: ddtrace.contrib.algoliasearch + + +.. _cassandra: + +Cassandra +--------- + +.. automodule:: ddtrace.contrib.cassandra + + +.. _consul: + +Consul +------ + +.. automodule:: ddtrace.contrib.consul + + +.. _dogpile.cache: + +dogpile.cache +------------- + +.. automodule:: ddtrace.contrib.dogpile_cache + + +.. _elasticsearch: + +Elasticsearch +------------- + +.. automodule:: ddtrace.contrib.elasticsearch + + +.. _flask_cache: + +Flask Cache +----------- + +.. automodule:: ddtrace.contrib.flask_cache + + +.. _mongodb: + +MongoDB +------- + +.. _mongoengine: + +Mongoengine +^^^^^^^^^^^ + +.. automodule:: ddtrace.contrib.mongoengine + + +.. _pymongo: + +Pymongo +^^^^^^^ + +.. automodule:: ddtrace.contrib.pymongo + + +Memcached +--------- + +.. _pylibmc: + +pylibmc +^^^^^^^ + +.. automodule:: ddtrace.contrib.pylibmc + +.. _pymemcache: + +pymemcache +^^^^^^^^^^ + +.. automodule:: ddtrace.contrib.pymemcache + +MySQL +----- + +.. _mysql-connector: + +mysql-connector +^^^^^^^^^^^^^^^ + +.. automodule:: ddtrace.contrib.mysql + + +.. _mysqlclient: +.. _MySQL-python: +.. _mysqldb: + +mysqlclient/MySQL-python +^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +.. automodule:: ddtrace.contrib.mysqldb + +.. _pymysql: + +pymysql +^^^^^^^ + +.. automodule:: ddtrace.contrib.pymysql + + +Postgres +-------- + +.. _aiopg: + +aiopg +^^^^^ + +.. automodule:: ddtrace.contrib.aiopg + + +.. _psycopg2: + +psycopg +^^^^^^^ + +.. automodule:: ddtrace.contrib.psycopg + + + +Redis +----- + +.. _redis: + +redis +^^^^^ + +.. automodule:: ddtrace.contrib.redis + + +.. _rediscluster: + +redis-py-cluster +^^^^^^^^^^^^^^^^ + +.. automodule:: ddtrace.contrib.rediscluster + + +.. _sqlalchemy: + +SQLAlchemy +---------- + +.. automodule:: ddtrace.contrib.sqlalchemy + + +.. _sqllite: + +SQLite +------ + +.. automodule:: ddtrace.contrib.sqlite3 + +.. _vertica: + +Vertica +------- + +.. automodule:: ddtrace.contrib.vertica diff --git a/docs/index.rst b/docs/index.rst new file mode 100644 index 0000000000..e3166228ed --- /dev/null +++ b/docs/index.rst @@ -0,0 +1,148 @@ +.. include:: ./shared.rst + +Datadog Python Trace Client +=========================== + +``ddtrace`` is Datadog's Python tracing client. It is used to trace requests as +they flow across web servers, databases and microservices. This enables +developers to have greater visibility into bottlenecks and troublesome requests +in their application. + +Getting Started +--------------- + +For a basic product overview: check out the `setup documentation`_. + +For details about developing and contributing: refer to the `development +guide`_. + +For descriptions of the terminology of Datadog APM: take a look at the `official +documentation`_. + + +.. _`Supported Libraries`: + +Supported Libraries +------------------- + +We officially support Python 2.7, 3.4 and above. + +The versions listed are the versions that we have tested, but ``ddtrace`` can +still be compatible with other versions of these libraries. If a version of a +library you use is unsupported, feel free to contribute or request it by +contacting support. + + +.. |SUPPVER| replace:: Supported Version +.. |AUTO| replace:: Automatically Instrumented + + ++--------------------------------------------------+---------------+----------------+ +| Integration | |SUPPVER| | |AUTO| [1]_ | ++==================================================+===============+================+ +| :ref:`aiobotocore` | >= 0.2.3 | No | ++--------------------------------------------------+---------------+----------------+ +| :ref:`aiohttp` | >= 1.2 | Yes [2]_ | ++--------------------------------------------------+---------------+----------------+ +| :ref:`aiopg` | >= 0.12.0 | Yes | ++--------------------------------------------------+---------------+----------------+ +| :ref:`algoliasearch` | >= 1.20.0 | Yes | ++--------------------------------------------------+---------------+----------------+ +| :ref:`boto2` | >= 2.29.0 | Yes | ++--------------------------------------------------+---------------+----------------+ +| :ref:`botocore` | >= 1.4.51 | Yes | ++--------------------------------------------------+---------------+----------------+ +| :ref:`bottle` | >= 0.11 | No | ++--------------------------------------------------+---------------+----------------+ +| :ref:`celery` | >= 3.1 | Yes | ++--------------------------------------------------+---------------+----------------+ +| :ref:`cassandra` | >= 3.5 | Yes | ++--------------------------------------------------+---------------+----------------+ +| :ref:`consul` | >= 0.7 | Yes [3]_ | ++--------------------------------------------------+---------------+----------------+ +| :ref:`django` | >= 1.8 | No | ++--------------------------------------------------+---------------+----------------+ +| :ref:`djangorestframework ` | >= 3.4 | No | ++--------------------------------------------------+---------------+----------------+ +| :ref:`elasticsearch` | >= 1.6 | Yes | ++--------------------------------------------------+---------------+----------------+ +| :ref:`falcon` | >= 1.0 | No | ++--------------------------------------------------+---------------+----------------+ +| :ref:`flask` | >= 0.10 | No | ++--------------------------------------------------+---------------+----------------+ +| :ref:`flask_cache` | >= 0.12 | No | ++--------------------------------------------------+---------------+----------------+ +| :ref:`gevent` | >= 1.0 | No | ++--------------------------------------------------+---------------+----------------+ +| :ref:`grpc` | >= 1.8.0 | Yes | ++--------------------------------------------------+---------------+----------------+ +| :ref:`jinja2` | >= 2.7 | Yes | ++--------------------------------------------------+---------------+----------------+ +| :ref:`mako` | >= 0.1.0 | Yes | ++--------------------------------------------------+---------------+----------------+ +| :ref:`kombu` | >= 4.0 | No | ++--------------------------------------------------+---------------+----------------+ +| :ref:`molten` | >= 0.7.0 | Yes | ++--------------------------------------------------+---------------+----------------+ +| :ref:`mongoengine` | >= 0.11 | Yes | ++--------------------------------------------------+---------------+----------------+ +| :ref:`mysql-connector` | >= 2.1 | No | ++--------------------------------------------------+---------------+----------------+ +| :ref:`MySQL-python ` | >= 1.2.3 | No | ++--------------------------------------------------+---------------+----------------+ +| :ref:`mysqlclient ` | >= 1.3 | No | ++--------------------------------------------------+---------------+----------------+ +| :ref:`psycopg2` | >= 2.4 | Yes | ++--------------------------------------------------+---------------+----------------+ +| :ref:`pylibmc` | >= 1.4 | Yes | ++--------------------------------------------------+---------------+----------------+ +| :ref:`pylons` | >= 0.9.6 | No | ++--------------------------------------------------+---------------+----------------+ +| :ref:`pymemcache` | >= 1.3 | Yes | ++--------------------------------------------------+---------------+----------------+ +| :ref:`pymongo` | >= 3.0 | Yes | ++--------------------------------------------------+---------------+----------------+ +| :ref:`pyramid` | >= 1.7 | No | ++--------------------------------------------------+---------------+----------------+ +| :ref:`redis` | >= 2.6 | Yes | ++--------------------------------------------------+---------------+----------------+ +| :ref:`rediscluster` | >= 1.3.5 | Yes | ++--------------------------------------------------+---------------+----------------+ +| :ref:`requests` | >= 2.08 | Yes | ++--------------------------------------------------+---------------+----------------+ +| :ref:`sqlalchemy` | >= 1.0 | No | ++--------------------------------------------------+---------------+----------------+ +| :ref:`tornado` | >= 4.0 | No | ++--------------------------------------------------+---------------+----------------+ +| :ref:`vertica` | >= 0.6 | Yes | ++--------------------------------------------------+---------------+----------------+ + + +.. [1] Libraries that are automatically instrumented when the + :ref:`ddtrace-run` command is used or the ``patch_all()`` method + is called. Always use ``patch()`` and ``patch_all()`` as soon as possible in + your Python entrypoint. + +.. [2] only third-party modules such as aiohttp_jinja2 + +.. [3] only the syncronous client + + +Indices and tables +================== + +* :ref:`genindex` +* :ref:`modindex` +* :ref:`search` + +.. toctree:: + :hidden: + + installation_quickstart + web_integrations + db_integrations + async_integrations + other_integrations + basic_usage + advanced_usage + contributing diff --git a/docs/installation_quickstart.rst b/docs/installation_quickstart.rst new file mode 100644 index 0000000000..0f158f30ff --- /dev/null +++ b/docs/installation_quickstart.rst @@ -0,0 +1,107 @@ +.. include:: ./shared.rst + + +.. _Installation: + +Installation + Quickstart +========================= + +Before installing be sure to read through the `setup documentation`_ to ensure +your environment is ready to receive traces. + + +Installation +------------ + +Install with :code:`pip`:: + +$ pip install ddtrace + +We strongly suggest pinning the version of the library you deploy. + +Quickstart +---------- + +Getting started with ``ddtrace`` is as easy as prefixing your python +entry-point command with ``ddtrace-run``. + +For example if you start your application with ``python app.py`` then run:: + + $ ddtrace-run python app.py + +For more advanced usage of ``ddtrace-run`` refer to the documentation :ref:`here`. + +To find out how to trace your own code manually refer to the documentation :ref:`here`. + + +Configuration +~~~~~~~~~~~~~ + +You can configure some parameters of the library by setting environment +variable before starting your application and importing the library: + +.. list-table:: + :header-rows: 1 + :widths: 1 1 2 + + * - Configuration Variable + - Configuration Type + - Default Value + - Value Description + * - ``DD_TRACE_AGENT_URL`` + - URL + - ``http://localhost:8126`` + - The URL to use to connect the Datadog agent. The url can starts with + ``http://`` to connect using HTTP or with ``unix://`` to use a Unix + Domain Socket. + + +OpenTracing +----------- + +``ddtrace`` also provides an OpenTracing API to the Datadog tracer so +that you can use the Datadog tracer in your OpenTracing-compatible +applications. + +Installation +^^^^^^^^^^^^ + +Include OpenTracing with ``ddtrace``:: + + $ pip install ddtrace[opentracing] + +To include the OpenTracing dependency in your project with ``ddtrace``, ensure +you have the following in ``setup.py``:: + + install_requires=[ + "ddtrace[opentracing]", + ], + +Configuration +^^^^^^^^^^^^^ + +The OpenTracing convention for initializing a tracer is to define an +initialization method that will configure and instantiate a new tracer and +overwrite the global ``opentracing.tracer`` reference. + +Typically this method looks something like:: + + from ddtrace.opentracer import Tracer, set_global_tracer + + def init_tracer(service_name): + """ + Initialize a new Datadog opentracer and set it as the + global tracer. + + This overwrites the opentracing.tracer reference. + """ + config = { + 'agent_hostname': 'localhost', + 'agent_port': 8126, + } + tracer = Tracer(service_name, config=config) + set_global_tracer(tracer) + return tracer + +For more advanced usage of OpenTracing in ``ddtrace`` refer to the +documentation :ref:`here`. diff --git a/docs/other_integrations.rst b/docs/other_integrations.rst new file mode 100644 index 0000000000..6687531157 --- /dev/null +++ b/docs/other_integrations.rst @@ -0,0 +1,91 @@ +Other Libraries +=============== + +.. _boto: + +Boto +---- + +.. _aiobotocore: + +aiobotocore +^^^^^^^^^^^ + +.. automodule:: ddtrace.contrib.aiobotocore + + +.. _boto2: + +Boto2 +^^^^^ + +.. automodule:: ddtrace.contrib.boto + + +.. _botocore: + +Botocore +^^^^^^^^ + +.. automodule:: ddtrace.contrib.botocore + + + +.. _futures: + +Futures +------- + +.. automodule:: ddtrace.contrib.futures + + +.. _celery: + +Celery +------ + +.. automodule:: ddtrace.contrib.celery + + +.. _kombu: + +Kombu +------ + +.. automodule:: ddtrace.contrib.kombu + + +.. _httplib: + +httplib +------- + +.. automodule:: ddtrace.contrib.httplib + +.. _requests: + +Requests +-------- + +.. automodule:: ddtrace.contrib.requests + +.. _grpc: + +Grpc +---- + +.. automodule:: ddtrace.contrib.grpc + +.. _jinja2: + +Jinja2 +------ + +.. automodule:: ddtrace.contrib.jinja2 + +.. _mako: + +Mako +------ + +.. automodule:: ddtrace.contrib.mako diff --git a/docs/shared.rst b/docs/shared.rst new file mode 100644 index 0000000000..b5d591eefe --- /dev/null +++ b/docs/shared.rst @@ -0,0 +1,5 @@ +.. _setup documentation: https://docs.datadoghq.com/tracing/setup/python/ + +.. _official documentation: https://docs.datadoghq.com/tracing/visualization/ + +.. _development guide: https://github.com/datadog/dd-trace-py#development diff --git a/docs/web_integrations.rst b/docs/web_integrations.rst new file mode 100644 index 0000000000..4145558cca --- /dev/null +++ b/docs/web_integrations.rst @@ -0,0 +1,84 @@ +Web Frameworks +-------------- + +``ddtrace`` provides tracing support for many Python web frameworks. For each +framework ``ddtrace`` supports: + +- tracing of requests [*]_: trace requests through middleware and back +- distributed tracing [*]_: trace requests across application boundaries +- automatic error tagging [*]_: spans will be marked with any errors that occur + +.. [*] https://docs.datadoghq.com/tracing/ +.. [*] https://docs.datadoghq.com/tracing/faq/distributed-tracing/ +.. [*] "erroneous HTTP return codes" are defined as being greater than 500 + +.. _aiohttp: + +aiohttp +^^^^^^^ + +.. automodule:: ddtrace.contrib.aiohttp + + +.. _bottle: + +Bottle +^^^^^^ + +.. automodule:: ddtrace.contrib.bottle + +.. _djangorestframework: +.. _django: + +Django +^^^^^^ + +.. automodule:: ddtrace.contrib.django + + +.. _falcon: + +Falcon +^^^^^^ + +.. automodule:: ddtrace.contrib.falcon + + +.. _flask: + +Flask +^^^^^ + + +.. automodule:: ddtrace.contrib.flask + +.. _molten: + +Molten +^^^^^^ + +.. automodule:: ddtrace.contrib.molten + +.. _pylons: + +Pylons +^^^^^^ + +.. automodule:: ddtrace.contrib.pylons + + +.. _pyramid: + +Pyramid +^^^^^^^ + +.. automodule:: ddtrace.contrib.pyramid + + +.. _tornado: + +Tornado +^^^^^^^ + +.. automodule:: ddtrace.contrib.tornado + diff --git a/pyproject.toml b/pyproject.toml new file mode 100644 index 0000000000..8790a1e7ba --- /dev/null +++ b/pyproject.toml @@ -0,0 +1,211 @@ +[tool.black] +line-length = 120 +target_version = ['py27', 'py34', 'py35', 'py36', 'py37', 'py38'] +exclude = ''' +( + \.eggs + | \.git + | \.hg + | \.mypy_cache + | \.nox + | \.tox + | \.venv + | _build/ + | buck-out/ + | build/ + | dist/ + | ddtrace/( + [^/]+\.py + | commands/ + | contrib/ + ( + aiobotocore + | aiohttp + | aiopg + | algoliasearch + | asyncio + | boto + | botocore + | bottle + | cassandra + | celery + | consul + | dbapi + | django/ + ( + __init__.py + | apps.py + | cache.py + | compat.py + | conf.py + | db.py + | patch.py + | restframework.py + | templates.py + | utils.py + ) + | dogpile_cache + | elasticsearch + | falcon + | flask + | flask_cache + | futures + | gevent + | grpc/ + ( + __init__.py + | constants.py + | patch.py + | server_interceptor.py + | utils.py + ) + | httplib + | jinja2 + | kombu + | logging + | mako + | molten + | mongoengine + | mysql + | mysqldb + | psycopg + | pylibmc + | pylons + | pymemcache + | pymongo + | pymysql + | pyramid + | redis + | rediscluster + | requests/ + ( + __init__.py + | constants.py + | legacy.py + | patch.py + | session.py + ) + | sqlalchemy + | sqlite3 + | tornado + | util.py + | vertica + ) + | ext/ + | http/ + | opentracer/ + | propagation/ + | settings/ + | vendor/ + ) + | tests/ + ( + base + | benchmark.py + | commands + | contrib/ + ( + aiobotocore + | aiohttp + | aiopg + | algoliasearch + | asyncio + | boto + | botocore + | bottle + | cassandra + | celery + | config.py + | consul + | dbapi + | django + | djangorestframework + | elasticsearch + | falcon + | flask + | flask_autopatch + | flask_cache + | futures + | gevent + | grpc + | httplib + | jinja2 + | kombu + | logging + | mako + | molten + | mongoengine + | mysql + | mysqldb + | patch.py + | psycopg + | pylibmc + | pylons + | pymemcache + | pymongo + | pymysql + | pyramid/ + ( + app/web.py + | __init__.py + | test_pyramid.py + | test_pyramid_autopatch.py + ) + | redis + | rediscluster + | requests + | requests_gevent + | sqlalchemy + | sqlite3 + | test_utils.py + | tornado + | vertica + ) + | ddtrace_run.py + | internal/ + ( + runtime/ + | test_context_manager.py + | test_hostname.py + | test_logger.py + | test_rate_limiter.py + ) + | memory.py + | opentracer/ + ( + conftest.py + | test_dd_compatibility.py + | test_span.py + | test_span_context.py + | test_tracer_asyncio.py + | test_tracer_gevent.py + | test_tracer_tornado.py + | test_utils.py + ) + | propagation/test_utils.py + | subprocesstest.py + | test_api.py + | test_compat.py + | test_context.py + | test_encoders.py + | test_filters.py + | test_global_config.py + | test_helpers.py + | test_hook.py + | test_instance_config.py + | test_integration.py + | test_payload.py + | test_pin.py + | test_sampler.py + | test_span.py + | test_tracer.py + | test_utils.py + | test_worker.py + | unit + | util.py + | utils + | vendor + | wait-for-services.py + ) +) +''' \ No newline at end of file diff --git a/scripts/build-dist b/scripts/build-dist new file mode 100755 index 0000000000..8fc5345665 --- /dev/null +++ b/scripts/build-dist @@ -0,0 +1,39 @@ +#!/usr/bin/env bash +set -ex + +# Determine where "../dist" is +PARENT_DIR="$( cd "$(dirname "${0}")/../" ; pwd -P )" +DIST_DIR="${PARENT_DIR}/dist" + +# Remove and recreate dist/ directory where our release wheels/source distribution will go +rm -rf "${DIST_DIR}" +mkdir "${DIST_DIR}" + +build_script=$(cat <<'EOF' +set -ex + +# Build linux wheels from the source distribution we created +for PYBIN in /opt/python/*/bin; +do + "${PYBIN}/pip" wheel --no-deps /dd-trace-py/dist/*.tar.gz -w /dd-trace-py/dist +done + +# Build manylinux wheels from the linux wheels we just created +for whl in /dd-trace-py/dist/*-linux_${ARCH}.whl; +do + auditwheel repair "${whl}" -w /dd-trace-py/dist + + # Remove linux wheel since we only want the manylinux wheels + rm "${whl}" +done +EOF +) + +# First build a source distribution for our package +python setup.py sdist --dist-dir dist + +# Build x86_64 linux and manylinux wheels +docker run -it --rm -v "${PARENT_DIR}:/dd-trace-py" -e "ARCH=x86_64" quay.io/pypa/manylinux1_x86_64 /bin/bash -c "${build_script}" + +# Build i686 linux and manylinux wheels +docker run -it --rm -v "${PARENT_DIR}:/dd-trace-py" -e "ARCH=i686" quay.io/pypa/manylinux1_i686 linux32 /bin/bash -c "${build_script}" diff --git a/scripts/ddtest b/scripts/ddtest new file mode 100755 index 0000000000..3126984a8a --- /dev/null +++ b/scripts/ddtest @@ -0,0 +1,5 @@ +#!/usr/bin/env bash + +set -e + +docker-compose run --rm testrunner $* diff --git a/scripts/mkwheelhouse b/scripts/mkwheelhouse new file mode 100755 index 0000000000..0305c2bf06 --- /dev/null +++ b/scripts/mkwheelhouse @@ -0,0 +1,57 @@ +#!/usr/bin/env python +import os +import shutil +import tempfile + +import mkwheelhouse + +S3_BUCKET = 'pypi.datadoghq.com' +S3_DIR = os.environ['S3_DIR'] + + +# DEV: This is the same `mkwheelhouse.build_wheels` except we are running `python setup.py sdist` instead +def build_sdist(): + build_dir = tempfile.mkdtemp(prefix='mkwheelhouse-') + args = [ + 'python', 'setup.py', 'sdist', + '--dist-dir', build_dir, + ] + mkwheelhouse.spawn(args) + return build_dir + + +# DEV: This is the same as `mkwheelhouse.Bucket.make_index`, except we include `*.whl` and `*.tar.gz` files +def make_index(bucket): + doc, tag, text = mkwheelhouse.yattag.Doc().tagtext() + with tag('html'): + for key in bucket.list(): + # Skip over any non-wheel or non-source dist + if not key.name.endswith('.whl') and not key.name.endswith('.tar.gz'): + continue + + with tag('a', href=bucket.generate_url(key)): + text(key.name) + doc.stag('br') + + return doc.getvalue() + + +# DEV: This is the same as `mkwheelhouse.run` except we hard code some values and use our custom functions instead +def run(): + s3_url = 's3://{0}/{1}'.format(S3_BUCKET, S3_DIR) + acl = 'private' + bucket = mkwheelhouse.Bucket(s3_url) + + if not bucket.has_key('index.html'): # noqa + bucket.put('', 'index.html', acl=acl) + + index_url = bucket.generate_url('index.html') + build_dir = build_sdist() + bucket.sync(build_dir, acl=acl) + bucket.put(make_index(bucket), key='index.html', acl=acl) + shutil.rmtree(build_dir) + print('mkwheelhouse: index written to', index_url) + + +if __name__ == '__main__': + run() diff --git a/scripts/run-tox-scenario b/scripts/run-tox-scenario new file mode 100755 index 0000000000..26e3e6894a --- /dev/null +++ b/scripts/run-tox-scenario @@ -0,0 +1,8 @@ +#!/usr/bin/env bash +set -e +PATTERN="$1" +shift + +# CircleCI has a bug in its workspace code where it can't handle filenames with some chars +CLEANED_PATTERN=`echo $PATTERN | tr '^?()$' '_'` +exec tox -l | grep "$PATTERN" | tr '\n' ',' | xargs -I ARGS tox --result-json /tmp/"$CLEANED_PATTERN".results -e ARGS -- $@ diff --git a/setup.cfg b/setup.cfg new file mode 100644 index 0000000000..3c6e79cf31 --- /dev/null +++ b/setup.cfg @@ -0,0 +1,2 @@ +[bdist_wheel] +universal=1 diff --git a/setup.py b/setup.py new file mode 100644 index 0000000000..a21be5dd98 --- /dev/null +++ b/setup.py @@ -0,0 +1,185 @@ +import copy +import os +import sys + +from distutils.command.build_ext import build_ext +from distutils.errors import CCompilerError, DistutilsExecError, DistutilsPlatformError +from setuptools import setup, find_packages +from setuptools.command.test import test as TestCommand + + +HERE = os.path.dirname(os.path.abspath(__file__)) + + +def load_module_from_project_file(mod_name, fname): + """ + Helper used to load a module from a file in this project + + DEV: Loading this way will by-pass loading all parent modules + e.g. importing `ddtrace.vendor.psutil.setup` will load `ddtrace/__init__.py` + which has side effects like loading the tracer + """ + fpath = os.path.join(HERE, fname) + + if sys.version_info >= (3, 5): + import importlib.util + + spec = importlib.util.spec_from_file_location(mod_name, fpath) + mod = importlib.util.module_from_spec(spec) + spec.loader.exec_module(mod) + return mod + elif sys.version_info >= (3, 3): + from importlib.machinery import SourceFileLoader + + return SourceFileLoader(mod_name, fpath).load_module() + else: + import imp + + return imp.load_source(mod_name, fpath) + + +class Tox(TestCommand): + + user_options = [("tox-args=", "a", "Arguments to pass to tox")] + + def initialize_options(self): + TestCommand.initialize_options(self) + self.tox_args = None + + def finalize_options(self): + TestCommand.finalize_options(self) + self.test_args = [] + self.test_suite = True + + def run_tests(self): + # import here, cause outside the eggs aren't loaded + import tox + import shlex + + args = self.tox_args + if args: + args = shlex.split(self.tox_args) + errno = tox.cmdline(args=args) + sys.exit(errno) + + +long_description = """ +# dd-trace-py + +`ddtrace` is Datadog's tracing library for Python. It is used to trace requests +as they flow across web servers, databases and microservices so that developers +have great visiblity into bottlenecks and troublesome requests. + +## Getting Started + +For a basic product overview, installation and quick start, check out our +[setup documentation][setup docs]. + +For more advanced usage and configuration, check out our [API +documentation][pypi docs]. + +For descriptions of terminology used in APM, take a look at the [official +documentation][visualization docs]. + +[setup docs]: https://docs.datadoghq.com/tracing/setup/python/ +[pypi docs]: http://pypi.datadoghq.com/trace/docs/ +[visualization docs]: https://docs.datadoghq.com/tracing/visualization/ +""" + +# enum34 is an enum backport for earlier versions of python +# funcsigs backport required for vendored debtcollector +install_requires = ["psutil>=5.0.0", "enum34; python_version<'3.4'", "funcsigs>=1.0.0;python_version=='2.7'"] + +# Base `setup()` kwargs without any C-extension registering +setup_kwargs = dict( + name="ddtrace", + description="Datadog tracing code", + url="https://github.com/DataDog/dd-trace-py", + author="Datadog, Inc.", + author_email="dev@datadoghq.com", + long_description=long_description, + long_description_content_type="text/markdown", + license="BSD", + packages=find_packages(exclude=["tests*"]), + install_requires=install_requires, + extras_require={ + # users can include opentracing by having: + # install_requires=['ddtrace[opentracing]', ...] + "opentracing": ["opentracing>=2.0.0"], + }, + # plugin tox + tests_require=["tox", "flake8"], + cmdclass={"test": Tox}, + entry_points={"console_scripts": ["ddtrace-run = ddtrace.commands.ddtrace_run:main"]}, + classifiers=[ + "Programming Language :: Python", + "Programming Language :: Python :: 2.7", + "Programming Language :: Python :: 3.4", + "Programming Language :: Python :: 3.5", + "Programming Language :: Python :: 3.6", + "Programming Language :: Python :: 3.7", + ], + use_scm_version=True, + setup_requires=["setuptools_scm"], +) + + +if sys.platform == "win32": + build_ext_errors = (CCompilerError, DistutilsExecError, DistutilsPlatformError, IOError, OSError) +else: + build_ext_errors = (CCompilerError, DistutilsExecError, DistutilsPlatformError) + + +class BuildExtFailed(Exception): + pass + + +# Attempt to build a C-extension, catch exceptions so failed building skips the extension +# DEV: This is basically what `distutils`'s' `Extension(optional=True)` does +class optional_build_ext(build_ext): + def run(self): + try: + build_ext.run(self) + except DistutilsPlatformError as e: + extensions = [ext.name for ext in self.extensions] + print("WARNING: Failed to build extensions %r, skipping: %s" % (extensions, e)) + + def build_extension(self, ext): + try: + build_ext.build_extension(self, ext) + except build_ext_errors as e: + print("WARNING: Failed to build extension %s, skipping: %s" % (ext.name, e)) + + +def get_exts_for(name): + try: + mod = load_module_from_project_file( + "ddtrace.vendor.{}.setup".format(name), "ddtrace/vendor/{}/setup.py".format(name) + ) + return mod.get_extensions() + except Exception as e: + print("WARNING: Failed to load %s extensions, skipping: %s" % (name, e)) + return [] + + +# Try to build with C extensions first, fallback to only pure-Python if building fails +try: + all_exts = [] + for extname in ("msgpack", "wrapt"): + exts = get_exts_for(extname) + if exts: + all_exts.extend(exts) + + kwargs = copy.deepcopy(setup_kwargs) + kwargs["ext_modules"] = all_exts + # DEV: Make sure `cmdclass` exists + kwargs.setdefault("cmdclass", dict()) + kwargs["cmdclass"]["build_ext"] = optional_build_ext + setup(**kwargs) +except Exception as e: + # Set `DDTRACE_BUILD_TRACE=TRUE` in CI to raise any build errors + if os.environ.get("DDTRACE_BUILD_RAISE") == "TRUE": + raise + + print("WARNING: Failed to install with ddtrace C-extensions, falling back to pure-Python only extensions: %s" % e) + setup(**setup_kwargs) diff --git a/tests/__init__.py b/tests/__init__.py new file mode 100644 index 0000000000..5874e1c361 --- /dev/null +++ b/tests/__init__.py @@ -0,0 +1,5 @@ +# Do *NOT* `import ddtrace` in here +# DEV: Some tests rely on import order of modules +# in order to properly function. Importing `ddtrace` +# here would mess with those tests since everyone +# will load this file by default diff --git a/tests/base/__init__.py b/tests/base/__init__.py new file mode 100644 index 0000000000..cd266e8640 --- /dev/null +++ b/tests/base/__init__.py @@ -0,0 +1,170 @@ +import contextlib +import sys +import unittest + +import ddtrace + +from ..utils import override_env +from ..utils.tracer import DummyTracer +from ..utils.span import TestSpanContainer, TestSpan, NO_CHILDREN + + +class BaseTestCase(unittest.TestCase): + """ + BaseTestCase extends ``unittest.TestCase`` to provide some useful helpers/assertions + + + Example:: + + from tests import BaseTestCase + + + class MyTestCase(BaseTestCase): + def test_case(self): + with self.override_config('flask', dict(distributed_tracing_enabled=True): + pass + """ + + # Expose `override_env` as `self.override_env` + override_env = staticmethod(override_env) + + @staticmethod + @contextlib.contextmanager + def override_global_config(values): + """ + Temporarily override an global configuration:: + + >>> with self.override_global_config(dict(name=value,...)): + # Your test + """ + # DEV: Uses dict as interface but internally handled as attributes on Config instance + analytics_enabled_original = ddtrace.config.analytics_enabled + report_hostname_original = ddtrace.config.report_hostname + health_metrics_enabled_original = ddtrace.config.health_metrics_enabled + + ddtrace.config.analytics_enabled = values.get('analytics_enabled', analytics_enabled_original) + ddtrace.config.report_hostname = values.get('report_hostname', report_hostname_original) + ddtrace.config.health_metrics_enabled = values.get('health_metrics_enabled', health_metrics_enabled_original) + try: + yield + finally: + ddtrace.config.analytics_enabled = analytics_enabled_original + ddtrace.config.report_hostname = report_hostname_original + ddtrace.config.health_metrics_enabled = health_metrics_enabled_original + + @staticmethod + @contextlib.contextmanager + def override_config(integration, values): + """ + Temporarily override an integration configuration value:: + + >>> with self.override_config('flask', dict(service_name='test-service')): + # Your test + """ + options = getattr(ddtrace.config, integration) + + original = dict( + (key, options.get(key)) + for key in values.keys() + ) + + options.update(values) + try: + yield + finally: + options.update(original) + + @staticmethod + @contextlib.contextmanager + def override_http_config(integration, values): + """ + Temporarily override an integration configuration for HTTP value:: + + >>> with self.override_http_config('flask', dict(trace_query_string=True)): + # Your test + """ + options = getattr(ddtrace.config, integration).http + + original = {} + for key, value in values.items(): + original[key] = getattr(options, key) + setattr(options, key, value) + + try: + yield + finally: + for key, value in original.items(): + setattr(options, key, value) + + @staticmethod + @contextlib.contextmanager + def override_sys_modules(modules): + """ + Temporarily override ``sys.modules`` with provided dictionary of modules:: + + >>> mock_module = mock.MagicMock() + >>> mock_module.fn.side_effect = lambda: 'test' + >>> with self.override_sys_modules(dict(A=mock_module)): + # Your test + """ + original = dict(sys.modules) + + sys.modules.update(modules) + try: + yield + finally: + sys.modules.clear() + sys.modules.update(original) + + +# TODO[tbutt]: Remove this once all tests are properly using BaseTracerTestCase +override_config = BaseTestCase.override_config + + +class BaseTracerTestCase(TestSpanContainer, BaseTestCase): + """ + BaseTracerTestCase is a base test case for when you need access to a dummy tracer and span assertions + """ + def setUp(self): + """Before each test case, setup a dummy tracer to use""" + self.tracer = DummyTracer() + + super(BaseTracerTestCase, self).setUp() + + def tearDown(self): + """After each test case, reset and remove the dummy tracer""" + super(BaseTracerTestCase, self).tearDown() + + self.reset() + delattr(self, 'tracer') + + def get_spans(self): + """Required subclass method for TestSpanContainer""" + return self.tracer.writer.spans + + def reset(self): + """Helper to reset the existing list of spans created""" + self.tracer.writer.pop() + + def trace(self, *args, **kwargs): + """Wrapper for self.tracer.trace that returns a TestSpan""" + return TestSpan(self.tracer.trace(*args, **kwargs)) + + def start_span(self, *args, **kwargs): + """Helper for self.tracer.start_span that returns a TestSpan""" + return TestSpan(self.tracer.start_span(*args, **kwargs)) + + def assert_structure(self, root, children=NO_CHILDREN): + """Helper to call TestSpanNode.assert_structure on the current root span""" + root_span = self.get_root_span() + root_span.assert_structure(root, children) + + @contextlib.contextmanager + def override_global_tracer(self, tracer=None): + original = ddtrace.tracer + tracer = tracer or self.tracer + setattr(ddtrace, 'tracer', tracer) + try: + yield + finally: + setattr(ddtrace, 'tracer', original) diff --git a/tests/benchmark.py b/tests/benchmark.py new file mode 100644 index 0000000000..5d7a738533 --- /dev/null +++ b/tests/benchmark.py @@ -0,0 +1,92 @@ +from ddtrace import Tracer +import pytest + +from .test_tracer import DummyWriter + + +@pytest.fixture +def tracer(): + tracer = Tracer() + tracer.writer = DummyWriter() + return tracer + + +def test_tracer_context(benchmark, tracer): + def func(tracer): + with tracer.trace('a', service='s', resource='r', span_type='t'): + pass + + benchmark(func, tracer) + + +def test_tracer_wrap_staticmethod(benchmark, tracer): + class Foo(object): + @staticmethod + @tracer.wrap() + def func(): + return 0 + + f = Foo() + benchmark(f.func) + + +def test_tracer_wrap_classmethod(benchmark, tracer): + class Foo(object): + @classmethod + @tracer.wrap() + def func(cls): + return 0 + + f = Foo() + benchmark(f.func) + + +def test_tracer_wrap_instancemethod(benchmark, tracer): + class Foo(object): + @tracer.wrap() + def func(self): + return 0 + + f = Foo() + benchmark(f.func) + + +def test_tracer_start_span(benchmark, tracer): + benchmark(tracer.start_span, 'benchmark') + + +def test_tracer_start_finish_span(benchmark, tracer): + def func(tracer): + s = tracer.start_span('benchmark') + s.finish() + + benchmark(func, tracer) + + +def test_trace_simple_trace(benchmark, tracer): + def func(tracer): + with tracer.trace('parent'): + for i in range(5): + with tracer.trace('child') as c: + c.set_tag('i', i) + + benchmark(func, tracer) + + +def test_tracer_large_trace(benchmark, tracer): + import random + + # generate trace with 1024 spans + @tracer.wrap() + def func(tracer, level=0): + span = tracer.current_span() + + # do some work + num = random.randint(1, 10) + span.set_tag('num', num) + + if level < 10: + func(tracer, level + 1) + func(tracer, level + 1) + + benchmark(func, tracer) diff --git a/tests/commands/__init__.py b/tests/commands/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/commands/bootstrap/__init__.py b/tests/commands/bootstrap/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/commands/bootstrap/sitecustomize.py b/tests/commands/bootstrap/sitecustomize.py new file mode 100644 index 0000000000..42b2dd3728 --- /dev/null +++ b/tests/commands/bootstrap/sitecustomize.py @@ -0,0 +1 @@ +CORRECT_IMPORT = True diff --git a/tests/commands/ddtrace_minimal.py b/tests/commands/ddtrace_minimal.py new file mode 100644 index 0000000000..2f5caf50b7 --- /dev/null +++ b/tests/commands/ddtrace_minimal.py @@ -0,0 +1,5 @@ +import ddtrace.bootstrap.sitecustomize as module + + +if __name__ == '__main__': + print(module.loaded) diff --git a/tests/commands/ddtrace_run_app_name.py b/tests/commands/ddtrace_run_app_name.py new file mode 100644 index 0000000000..b48266b71b --- /dev/null +++ b/tests/commands/ddtrace_run_app_name.py @@ -0,0 +1,5 @@ +from ddtrace.opentracer import Tracer + +if __name__ == '__main__': + tracer = Tracer() + print(tracer._service_name) diff --git a/tests/commands/ddtrace_run_argv.py b/tests/commands/ddtrace_run_argv.py new file mode 100644 index 0000000000..0473e422b3 --- /dev/null +++ b/tests/commands/ddtrace_run_argv.py @@ -0,0 +1,5 @@ +import sys + +if __name__ == '__main__': + assert sys.argv[1:] == ['foo', 'bar'] + print('Test success') diff --git a/tests/commands/ddtrace_run_debug.py b/tests/commands/ddtrace_run_debug.py new file mode 100644 index 0000000000..543a858567 --- /dev/null +++ b/tests/commands/ddtrace_run_debug.py @@ -0,0 +1,7 @@ +import logging + +from ddtrace import tracer + +if __name__ == '__main__': + assert tracer.log.isEnabledFor(logging.DEBUG) + print('Test success') diff --git a/tests/commands/ddtrace_run_disabled.py b/tests/commands/ddtrace_run_disabled.py new file mode 100644 index 0000000000..95d13a52ee --- /dev/null +++ b/tests/commands/ddtrace_run_disabled.py @@ -0,0 +1,6 @@ +from ddtrace import tracer, monkey + +if __name__ == '__main__': + assert not tracer.enabled + assert len(monkey.get_patched_modules()) == 0 + print('Test success') diff --git a/tests/commands/ddtrace_run_dogstatsd.py b/tests/commands/ddtrace_run_dogstatsd.py new file mode 100644 index 0000000000..2f2f7e48db --- /dev/null +++ b/tests/commands/ddtrace_run_dogstatsd.py @@ -0,0 +1,12 @@ +from __future__ import print_function + +from ddtrace import tracer + +if __name__ == '__main__': + # check both configurations with host:port or unix socket + if tracer._dogstatsd_client.socket_path is None: + assert tracer._dogstatsd_client.host == '172.10.0.1' + assert tracer._dogstatsd_client.port == 8120 + else: + assert tracer._dogstatsd_client.socket_path.endswith('dogstatsd.sock') + print('Test success') diff --git a/tests/commands/ddtrace_run_enabled.py b/tests/commands/ddtrace_run_enabled.py new file mode 100644 index 0000000000..cbe4673a9b --- /dev/null +++ b/tests/commands/ddtrace_run_enabled.py @@ -0,0 +1,5 @@ +from ddtrace import tracer + +if __name__ == '__main__': + assert tracer.enabled + print('Test success') diff --git a/tests/commands/ddtrace_run_env.py b/tests/commands/ddtrace_run_env.py new file mode 100644 index 0000000000..45db8cca15 --- /dev/null +++ b/tests/commands/ddtrace_run_env.py @@ -0,0 +1,5 @@ +from ddtrace import tracer + +if __name__ == '__main__': + assert tracer.tags['env'] == 'test' + print('Test success') diff --git a/tests/commands/ddtrace_run_global_tags.py b/tests/commands/ddtrace_run_global_tags.py new file mode 100644 index 0000000000..5f62e14d24 --- /dev/null +++ b/tests/commands/ddtrace_run_global_tags.py @@ -0,0 +1,7 @@ +from ddtrace import tracer + +if __name__ == '__main__': + assert tracer.tags['a'] == 'True' + assert tracer.tags['b'] == '0' + assert tracer.tags['c'] == 'C' + print('Test success') diff --git a/tests/commands/ddtrace_run_hostname.py b/tests/commands/ddtrace_run_hostname.py new file mode 100644 index 0000000000..c2f084c583 --- /dev/null +++ b/tests/commands/ddtrace_run_hostname.py @@ -0,0 +1,6 @@ +from ddtrace import tracer + +if __name__ == '__main__': + assert tracer.writer.api.hostname == '172.10.0.1' + assert tracer.writer.api.port == 8120 + print('Test success') diff --git a/tests/commands/ddtrace_run_integration.py b/tests/commands/ddtrace_run_integration.py new file mode 100644 index 0000000000..875742789e --- /dev/null +++ b/tests/commands/ddtrace_run_integration.py @@ -0,0 +1,43 @@ +""" +An integration test that uses a real Redis client +that we expect to be implicitly traced via `ddtrace-run` +""" + +import redis + +from ddtrace import Pin +from tests.contrib.config import REDIS_CONFIG +from tests.test_tracer import DummyWriter + +if __name__ == '__main__': + r = redis.Redis(port=REDIS_CONFIG['port']) + pin = Pin.get_from(r) + assert pin + assert pin.app == 'redis' + assert pin.service == 'redis' + + pin.tracer.writer = DummyWriter() + r.flushall() + spans = pin.tracer.writer.pop() + + assert len(spans) == 1 + assert spans[0].service == 'redis' + assert spans[0].resource == 'FLUSHALL' + + long_cmd = 'mget %s' % ' '.join(map(str, range(1000))) + us = r.execute_command(long_cmd) + + spans = pin.tracer.writer.pop() + assert len(spans) == 1 + span = spans[0] + assert span.service == 'redis' + assert span.name == 'redis.command' + assert span.span_type == 'redis' + assert span.error == 0 + assert span.get_metric('out.port') == REDIS_CONFIG['port'] + assert span.get_metric('out.redis_db') == 0 + assert span.get_tag('out.host') == 'localhost' + assert span.get_tag('redis.raw_command').startswith(u'mget 0 1 2 3') + assert span.get_tag('redis.raw_command').endswith(u'...') + + print('Test success') diff --git a/tests/commands/ddtrace_run_logs_injection.py b/tests/commands/ddtrace_run_logs_injection.py new file mode 100644 index 0000000000..06d5cb6e31 --- /dev/null +++ b/tests/commands/ddtrace_run_logs_injection.py @@ -0,0 +1,11 @@ +import logging + +if __name__ == '__main__': + # Ensure if module is patched then default log formatter is set up for logs + if getattr(logging, '_datadog_patch'): + assert '[dd.trace_id=%(dd.trace_id)s dd.span_id=%(dd.span_id)s]' in \ + logging.root.handlers[0].formatter._fmt + else: + assert '[dd.trace_id=%(dd.trace_id)s dd.span_id=%(dd.span_id)s]' not in \ + logging.root.handlers[0].formatter._fmt + print('Test success') diff --git a/tests/commands/ddtrace_run_no_debug.py b/tests/commands/ddtrace_run_no_debug.py new file mode 100644 index 0000000000..3e19f9d11c --- /dev/null +++ b/tests/commands/ddtrace_run_no_debug.py @@ -0,0 +1,7 @@ +import logging + +from ddtrace import tracer + +if __name__ == '__main__': + assert not tracer.log.isEnabledFor(logging.DEBUG) + print('Test success') diff --git a/tests/commands/ddtrace_run_patched_modules.py b/tests/commands/ddtrace_run_patched_modules.py new file mode 100644 index 0000000000..bcddba07d3 --- /dev/null +++ b/tests/commands/ddtrace_run_patched_modules.py @@ -0,0 +1,5 @@ +from ddtrace import monkey + +if __name__ == '__main__': + assert 'redis' in monkey.get_patched_modules() + print('Test success') diff --git a/tests/commands/ddtrace_run_priority_sampling.py b/tests/commands/ddtrace_run_priority_sampling.py new file mode 100644 index 0000000000..d4a32ed774 --- /dev/null +++ b/tests/commands/ddtrace_run_priority_sampling.py @@ -0,0 +1,5 @@ +from ddtrace import tracer + +if __name__ == '__main__': + assert tracer.priority_sampler is not None + print('Test success') diff --git a/tests/commands/ddtrace_run_service.py b/tests/commands/ddtrace_run_service.py new file mode 100644 index 0000000000..7062006d47 --- /dev/null +++ b/tests/commands/ddtrace_run_service.py @@ -0,0 +1,5 @@ +import os + +if __name__ == '__main__': + assert os.environ['DATADOG_SERVICE_NAME'] == 'my_test_service' + print('Test success') diff --git a/tests/commands/ddtrace_run_sitecustomize.py b/tests/commands/ddtrace_run_sitecustomize.py new file mode 100644 index 0000000000..19436f1e23 --- /dev/null +++ b/tests/commands/ddtrace_run_sitecustomize.py @@ -0,0 +1,15 @@ +import sys + + +if __name__ == '__main__': + # detect if `-S` is used + suppress = len(sys.argv) == 2 and sys.argv[1] == '-S' + if suppress: + assert 'sitecustomize' not in sys.modules + else: + assert 'sitecustomize' in sys.modules + + # ensure the right `sitecustomize` will be imported + import sitecustomize + assert sitecustomize.CORRECT_IMPORT + print('Test success') diff --git a/tests/commands/test_runner.py b/tests/commands/test_runner.py new file mode 100644 index 0000000000..8596b5be6d --- /dev/null +++ b/tests/commands/test_runner.py @@ -0,0 +1,299 @@ +import os +import subprocess +import sys + +from ..base import BaseTestCase + + +def inject_sitecustomize(path): + """Creates a new environment, injecting a ``sitecustomize.py`` module in + the current PYTHONPATH. + + :param path: package path containing ``sitecustomize.py`` module, starting + from the ddtrace root folder + :returns: a cloned environment that includes an altered PYTHONPATH with + the given `sitecustomize.py` + """ + from ddtrace import __file__ as root_file + root_folder = os.path.dirname(root_file) + # Copy the current environment and replace the PYTHONPATH. This is + # required otherwise `ddtrace` scripts are not found when `env` kwarg is + # passed + env = os.environ.copy() + sitecustomize = os.path.join(root_folder, '..', path) + + # Add `boostrap` module so that `sitecustomize.py` is at the bottom + # of the PYTHONPATH + python_path = list(sys.path) + [sitecustomize] + env['PYTHONPATH'] = ':'.join(python_path)[1:] + return env + + +class DdtraceRunTest(BaseTestCase): + def test_service_name_passthrough(self): + """ + $DATADOG_SERVICE_NAME gets passed through to the program + """ + with self.override_env(dict(DATADOG_SERVICE_NAME='my_test_service')): + out = subprocess.check_output( + ['ddtrace-run', 'python', 'tests/commands/ddtrace_run_service.py'] + ) + assert out.startswith(b'Test success') + + def test_env_name_passthrough(self): + """ + $DATADOG_ENV gets passed through to the global tracer as an 'env' tag + """ + with self.override_env(dict(DATADOG_ENV='test')): + out = subprocess.check_output( + ['ddtrace-run', 'python', 'tests/commands/ddtrace_run_env.py'] + ) + assert out.startswith(b'Test success') + + def test_env_enabling(self): + """ + DATADOG_TRACE_ENABLED=false allows disabling of the global tracer + """ + with self.override_env(dict(DATADOG_TRACE_ENABLED='false')): + out = subprocess.check_output( + ['ddtrace-run', 'python', 'tests/commands/ddtrace_run_disabled.py'] + ) + assert out.startswith(b'Test success') + + with self.override_env(dict(DATADOG_TRACE_ENABLED='true')): + out = subprocess.check_output( + ['ddtrace-run', 'python', 'tests/commands/ddtrace_run_enabled.py'] + ) + assert out.startswith(b'Test success') + + def test_patched_modules(self): + """ + Using `ddtrace-run` registers some generic patched modules + """ + out = subprocess.check_output( + ['ddtrace-run', 'python', 'tests/commands/ddtrace_run_patched_modules.py'] + ) + assert out.startswith(b'Test success') + + def test_integration(self): + out = subprocess.check_output( + ['ddtrace-run', 'python', '-m', 'tests.commands.ddtrace_run_integration'] + ) + assert out.startswith(b'Test success') + + def test_debug_enabling(self): + """ + DATADOG_TRACE_DEBUG=true allows setting debug logging of the global tracer + """ + with self.override_env(dict(DATADOG_TRACE_DEBUG='false')): + out = subprocess.check_output( + ['ddtrace-run', 'python', 'tests/commands/ddtrace_run_no_debug.py'] + ) + assert out.startswith(b'Test success') + + with self.override_env(dict(DATADOG_TRACE_DEBUG='true')): + out = subprocess.check_output( + ['ddtrace-run', 'python', 'tests/commands/ddtrace_run_debug.py'] + ) + assert out.startswith(b'Test success') + + def test_host_port_from_env(self): + """ + DATADOG_TRACE_AGENT_HOSTNAME|PORT point to the tracer + to the correct host/port for submission + """ + with self.override_env(dict(DATADOG_TRACE_AGENT_HOSTNAME='172.10.0.1', + DATADOG_TRACE_AGENT_PORT='8120')): + out = subprocess.check_output( + ['ddtrace-run', 'python', 'tests/commands/ddtrace_run_hostname.py'] + ) + assert out.startswith(b'Test success') + + def test_host_port_from_env_dd(self): + """ + DD_AGENT_HOST|DD_TRACE_AGENT_PORT point to the tracer + to the correct host/port for submission + """ + with self.override_env(dict(DD_AGENT_HOST='172.10.0.1', + DD_TRACE_AGENT_PORT='8120')): + out = subprocess.check_output( + ['ddtrace-run', 'python', 'tests/commands/ddtrace_run_hostname.py'] + ) + assert out.startswith(b'Test success') + + # Do we get the same results without `ddtrace-run`? + out = subprocess.check_output( + ['python', 'tests/commands/ddtrace_run_hostname.py'] + ) + assert out.startswith(b'Test success') + + def test_dogstatsd_client_env_host_and_port(self): + """ + DD_AGENT_HOST and DD_DOGSTATSD_PORT used to configure dogstatsd with udp in tracer + """ + with self.override_env(dict(DD_AGENT_HOST='172.10.0.1', + DD_DOGSTATSD_PORT='8120')): + out = subprocess.check_output( + ['ddtrace-run', 'python', 'tests/commands/ddtrace_run_dogstatsd.py'] + ) + assert out.startswith(b'Test success') + + def test_dogstatsd_client_env_url_host_and_port(self): + """ + DD_DOGSTATSD_URL=: used to configure dogstatsd with udp in tracer + """ + with self.override_env(dict(DD_DOGSTATSD_URL='172.10.0.1:8120')): + out = subprocess.check_output( + ['ddtrace-run', 'python', 'tests/commands/ddtrace_run_dogstatsd.py'] + ) + assert out.startswith(b'Test success') + + def test_dogstatsd_client_env_url_udp(self): + """ + DD_DOGSTATSD_URL=udp://: used to configure dogstatsd with udp in tracer + """ + with self.override_env(dict(DD_DOGSTATSD_URL='udp://172.10.0.1:8120')): + out = subprocess.check_output( + ['ddtrace-run', 'python', 'tests/commands/ddtrace_run_dogstatsd.py'] + ) + assert out.startswith(b'Test success') + + def test_dogstatsd_client_env_url_unix(self): + """ + DD_DOGSTATSD_URL=unix:// used to configure dogstatsd with socket path in tracer + """ + with self.override_env(dict(DD_DOGSTATSD_URL='unix:///dogstatsd.sock')): + out = subprocess.check_output( + ['ddtrace-run', 'python', 'tests/commands/ddtrace_run_dogstatsd.py'] + ) + assert out.startswith(b'Test success') + + def test_dogstatsd_client_env_url_path(self): + """ + DD_DOGSTATSD_URL= used to configure dogstatsd with socket path in tracer + """ + with self.override_env(dict(DD_DOGSTATSD_URL='/dogstatsd.sock')): + out = subprocess.check_output( + ['ddtrace-run', 'python', 'tests/commands/ddtrace_run_dogstatsd.py'] + ) + assert out.startswith(b'Test success') + + def test_priority_sampling_from_env(self): + """ + DATADOG_PRIORITY_SAMPLING enables Distributed Sampling + """ + with self.override_env(dict(DATADOG_PRIORITY_SAMPLING='True')): + out = subprocess.check_output( + ['ddtrace-run', 'python', 'tests/commands/ddtrace_run_priority_sampling.py'] + ) + assert out.startswith(b'Test success') + + def test_patch_modules_from_env(self): + """ + DATADOG_PATCH_MODULES overrides the defaults for patch_all() + """ + from ddtrace.bootstrap.sitecustomize import EXTRA_PATCHED_MODULES, update_patched_modules + orig = EXTRA_PATCHED_MODULES.copy() + + # empty / malformed strings are no-ops + with self.override_env(dict(DATADOG_PATCH_MODULES='')): + update_patched_modules() + assert orig == EXTRA_PATCHED_MODULES + + with self.override_env(dict(DATADOG_PATCH_MODULES=':')): + update_patched_modules() + assert orig == EXTRA_PATCHED_MODULES + + with self.override_env(dict(DATADOG_PATCH_MODULES=',')): + update_patched_modules() + assert orig == EXTRA_PATCHED_MODULES + + with self.override_env(dict(DATADOG_PATCH_MODULES=',:')): + update_patched_modules() + assert orig == EXTRA_PATCHED_MODULES + + # overrides work in either direction + with self.override_env(dict(DATADOG_PATCH_MODULES='django:false')): + update_patched_modules() + assert EXTRA_PATCHED_MODULES['django'] is False + + with self.override_env(dict(DATADOG_PATCH_MODULES='boto:true')): + update_patched_modules() + assert EXTRA_PATCHED_MODULES['boto'] is True + + with self.override_env(dict(DATADOG_PATCH_MODULES='django:true,boto:false')): + update_patched_modules() + assert EXTRA_PATCHED_MODULES['boto'] is False + assert EXTRA_PATCHED_MODULES['django'] is True + + with self.override_env(dict(DATADOG_PATCH_MODULES='django:false,boto:true')): + update_patched_modules() + assert EXTRA_PATCHED_MODULES['boto'] is True + assert EXTRA_PATCHED_MODULES['django'] is False + + def test_sitecustomize_without_ddtrace_run_command(self): + # [Regression test]: ensure `sitecustomize` path is removed only if it's + # present otherwise it will cause: + # ValueError: list.remove(x): x not in list + # as mentioned here: https://github.com/DataDog/dd-trace-py/pull/516 + env = inject_sitecustomize('') + out = subprocess.check_output( + ['python', 'tests/commands/ddtrace_minimal.py'], + env=env, + ) + # `out` contains the `loaded` status of the module + result = out[:-1] == b'True' + self.assertTrue(result) + + def test_sitecustomize_run(self): + # [Regression test]: ensure users `sitecustomize.py` is properly loaded, + # so that our `bootstrap/sitecustomize.py` doesn't override the one + # defined in users' PYTHONPATH. + env = inject_sitecustomize('tests/commands/bootstrap') + out = subprocess.check_output( + ['ddtrace-run', 'python', 'tests/commands/ddtrace_run_sitecustomize.py'], + env=env, + ) + assert out.startswith(b'Test success') + + def test_sitecustomize_run_suppressed(self): + # ensure `sitecustomize.py` is not loaded if `-S` is used + env = inject_sitecustomize('tests/commands/bootstrap') + out = subprocess.check_output( + ['ddtrace-run', 'python', '-S', 'tests/commands/ddtrace_run_sitecustomize.py', '-S'], + env=env, + ) + assert out.startswith(b'Test success') + + def test_argv_passed(self): + out = subprocess.check_output( + ['ddtrace-run', 'python', 'tests/commands/ddtrace_run_argv.py', 'foo', 'bar'] + ) + assert out.startswith(b'Test success') + + def test_got_app_name(self): + """ + apps run with ddtrace-run have a proper app name + """ + out = subprocess.check_output( + ['ddtrace-run', 'python', 'tests/commands/ddtrace_run_app_name.py'] + ) + assert out.startswith(b'ddtrace_run_app_name.py') + + def test_global_trace_tags(self): + """ Ensure global tags are passed in from environment + """ + with self.override_env(dict(DD_TRACE_GLOBAL_TAGS='a:True,b:0,c:C')): + out = subprocess.check_output( + ['ddtrace-run', 'python', 'tests/commands/ddtrace_run_global_tags.py'] + ) + assert out.startswith(b'Test success') + + def test_logs_injection(self): + """ Ensure logs injection works + """ + with self.override_env(dict(DD_LOGS_INJECTION='true')): + out = subprocess.check_output( + ['ddtrace-run', 'python', 'tests/commands/ddtrace_run_logs_injection.py'] + ) + assert out.startswith(b'Test success') diff --git a/tests/contrib/__init__.py b/tests/contrib/__init__.py new file mode 100644 index 0000000000..5874e1c361 --- /dev/null +++ b/tests/contrib/__init__.py @@ -0,0 +1,5 @@ +# Do *NOT* `import ddtrace` in here +# DEV: Some tests rely on import order of modules +# in order to properly function. Importing `ddtrace` +# here would mess with those tests since everyone +# will load this file by default diff --git a/tests/contrib/aiobotocore/__init__.py b/tests/contrib/aiobotocore/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/aiobotocore/py35/__init__.py b/tests/contrib/aiobotocore/py35/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/aiobotocore/py35/test.py b/tests/contrib/aiobotocore/py35/test.py new file mode 100644 index 0000000000..fb12611b08 --- /dev/null +++ b/tests/contrib/aiobotocore/py35/test.py @@ -0,0 +1,71 @@ +import aiobotocore + +from ddtrace.contrib.aiobotocore.patch import patch, unpatch + +from ..utils import aiobotocore_client +from ...asyncio.utils import AsyncioTestCase, mark_asyncio +from ....test_tracer import get_dummy_tracer +from ....utils import assert_span_http_status_code + + +class AIOBotocoreTest(AsyncioTestCase): + """Botocore integration testsuite""" + def setUp(self): + super(AIOBotocoreTest, self).setUp() + patch() + self.tracer = get_dummy_tracer() + + def tearDown(self): + super(AIOBotocoreTest, self).tearDown() + unpatch() + self.tracer = None + + @mark_asyncio + async def test_response_context_manager(self): + # the client should call the wrapped __aenter__ and return the + # object proxy + with aiobotocore_client('s3', self.tracer) as s3: + # prepare S3 and flush traces if any + await s3.create_bucket(Bucket='tracing') + await s3.put_object(Bucket='tracing', Key='apm', Body=b'') + self.tracer.writer.pop_traces() + # `async with` under test + response = await s3.get_object(Bucket='tracing', Key='apm') + async with response['Body'] as stream: + await stream.read() + + traces = self.tracer.writer.pop_traces() + + version = aiobotocore.__version__.split('.') + pre_08 = int(version[0]) == 0 and int(version[1]) < 8 + # Version 0.8+ generates only one span for reading an object. + if pre_08: + assert len(traces) == 2 + assert len(traces[0]) == 1 + assert len(traces[1]) == 1 + + span = traces[0][0] + assert span.get_tag('aws.operation') == 'GetObject' + assert_span_http_status_code(span, 200) + assert span.service == 'aws.s3' + assert span.resource == 's3.getobject' + + read_span = traces[1][0] + assert read_span.get_tag('aws.operation') == 'GetObject' + assert_span_http_status_code(read_span, 200) + assert read_span.service == 'aws.s3' + assert read_span.resource == 's3.getobject' + assert read_span.name == 's3.command.read' + # enforce parenting + assert read_span.parent_id == span.span_id + assert read_span.trace_id == span.trace_id + else: + assert len(traces[0]) == 1 + assert len(traces[0]) == 1 + + span = traces[0][0] + assert span.get_tag('aws.operation') == 'GetObject' + assert_span_http_status_code(span, 200) + assert span.service == 'aws.s3' + assert span.resource == 's3.getobject' + assert span.name == 's3.command' diff --git a/tests/contrib/aiobotocore/test.py b/tests/contrib/aiobotocore/test.py new file mode 100644 index 0000000000..700d593c8b --- /dev/null +++ b/tests/contrib/aiobotocore/test.py @@ -0,0 +1,317 @@ +import aiobotocore +from botocore.errorfactory import ClientError + +from ddtrace.contrib.aiobotocore.patch import patch, unpatch +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.compat import stringify + +from .utils import aiobotocore_client +from ..asyncio.utils import AsyncioTestCase, mark_asyncio +from ...test_tracer import get_dummy_tracer +from ...utils import assert_span_http_status_code + + +class AIOBotocoreTest(AsyncioTestCase): + """Botocore integration testsuite""" + def setUp(self): + super(AIOBotocoreTest, self).setUp() + patch() + self.tracer = get_dummy_tracer() + + def tearDown(self): + super(AIOBotocoreTest, self).tearDown() + unpatch() + self.tracer = None + + @mark_asyncio + def test_traced_client(self): + with aiobotocore_client('ec2', self.tracer) as ec2: + yield from ec2.describe_instances() + + traces = self.tracer.writer.pop_traces() + self.assertEqual(len(traces), 1) + self.assertEqual(len(traces[0]), 1) + span = traces[0][0] + + self.assertEqual(span.get_tag('aws.agent'), 'aiobotocore') + self.assertEqual(span.get_tag('aws.region'), 'us-west-2') + self.assertEqual(span.get_tag('aws.operation'), 'DescribeInstances') + assert_span_http_status_code(span, 200) + self.assertEqual(span.get_metric('retry_attempts'), 0) + self.assertEqual(span.service, 'aws.ec2') + self.assertEqual(span.resource, 'ec2.describeinstances') + self.assertEqual(span.name, 'ec2.command') + self.assertEqual(span.span_type, 'http') + self.assertIsNone(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + @mark_asyncio + def test_traced_client_analytics(self): + with self.override_config( + 'aiobotocore', + dict(analytics_enabled=True, analytics_sample_rate=0.5) + ): + with aiobotocore_client('ec2', self.tracer) as ec2: + yield from ec2.describe_instances() + + spans = self.get_spans() + assert spans + span = spans[0] + self.assertEqual(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY), 0.5) + + @mark_asyncio + def test_s3_client(self): + with aiobotocore_client('s3', self.tracer) as s3: + yield from s3.list_buckets() + yield from s3.list_buckets() + + traces = self.tracer.writer.pop_traces() + self.assertEqual(len(traces), 2) + self.assertEqual(len(traces[0]), 1) + span = traces[0][0] + + self.assertEqual(span.get_tag('aws.operation'), 'ListBuckets') + assert_span_http_status_code(span, 200) + self.assertEqual(span.service, 'aws.s3') + self.assertEqual(span.resource, 's3.listbuckets') + self.assertEqual(span.name, 's3.command') + + @mark_asyncio + def test_s3_put(self): + params = dict(Key='foo', Bucket='mybucket', Body=b'bar') + + with aiobotocore_client('s3', self.tracer) as s3: + yield from s3.create_bucket(Bucket='mybucket') + yield from s3.put_object(**params) + + spans = [trace[0] for trace in self.tracer.writer.pop_traces()] + assert spans + self.assertEqual(len(spans), 2) + self.assertEqual(spans[0].get_tag('aws.operation'), 'CreateBucket') + assert_span_http_status_code(spans[0], 200) + self.assertEqual(spans[0].service, 'aws.s3') + self.assertEqual(spans[0].resource, 's3.createbucket') + self.assertEqual(spans[1].get_tag('aws.operation'), 'PutObject') + self.assertEqual(spans[1].resource, 's3.putobject') + self.assertEqual(spans[1].get_tag('params.Key'), stringify(params['Key'])) + self.assertEqual(spans[1].get_tag('params.Bucket'), stringify(params['Bucket'])) + self.assertIsNone(spans[1].get_tag('params.Body')) + + @mark_asyncio + def test_s3_client_error(self): + with aiobotocore_client('s3', self.tracer) as s3: + with self.assertRaises(ClientError): + # FIXME: add proper clean-up to tearDown + yield from s3.list_objects(Bucket='doesnotexist') + + traces = self.tracer.writer.pop_traces() + self.assertEqual(len(traces), 1) + self.assertEqual(len(traces[0]), 1) + span = traces[0][0] + + self.assertEqual(span.resource, 's3.listobjects') + self.assertEqual(span.error, 1) + self.assertTrue('NoSuchBucket' in span.get_tag('error.msg')) + + @mark_asyncio + def test_s3_client_read(self): + with aiobotocore_client('s3', self.tracer) as s3: + # prepare S3 and flush traces if any + yield from s3.create_bucket(Bucket='tracing') + yield from s3.put_object(Bucket='tracing', Key='apm', Body=b'') + self.tracer.writer.pop_traces() + # calls under test + response = yield from s3.get_object(Bucket='tracing', Key='apm') + yield from response['Body'].read() + + traces = self.tracer.writer.pop_traces() + version = aiobotocore.__version__.split('.') + pre_08 = int(version[0]) == 0 and int(version[1]) < 8 + if pre_08: + self.assertEqual(len(traces), 2) + self.assertEqual(len(traces[1]), 1) + else: + self.assertEqual(len(traces), 1) + + self.assertEqual(len(traces[0]), 1) + + span = traces[0][0] + self.assertEqual(span.get_tag('aws.operation'), 'GetObject') + assert_span_http_status_code(span, 200) + self.assertEqual(span.service, 'aws.s3') + self.assertEqual(span.resource, 's3.getobject') + + if pre_08: + read_span = traces[1][0] + self.assertEqual(read_span.get_tag('aws.operation'), 'GetObject') + assert_span_http_status_code(read_span, 200) + self.assertEqual(read_span.service, 'aws.s3') + self.assertEqual(read_span.resource, 's3.getobject') + self.assertEqual(read_span.name, 's3.command.read') + # enforce parenting + self.assertEqual(read_span.parent_id, span.span_id) + self.assertEqual(read_span.trace_id, span.trace_id) + + @mark_asyncio + def test_sqs_client(self): + with aiobotocore_client('sqs', self.tracer) as sqs: + yield from sqs.list_queues() + + traces = self.tracer.writer.pop_traces() + self.assertEqual(len(traces), 1) + self.assertEqual(len(traces[0]), 1) + + span = traces[0][0] + self.assertEqual(span.get_tag('aws.region'), 'us-west-2') + self.assertEqual(span.get_tag('aws.operation'), 'ListQueues') + assert_span_http_status_code(span, 200) + self.assertEqual(span.service, 'aws.sqs') + self.assertEqual(span.resource, 'sqs.listqueues') + + @mark_asyncio + def test_kinesis_client(self): + with aiobotocore_client('kinesis', self.tracer) as kinesis: + yield from kinesis.list_streams() + + traces = self.tracer.writer.pop_traces() + self.assertEqual(len(traces), 1) + self.assertEqual(len(traces[0]), 1) + + span = traces[0][0] + self.assertEqual(span.get_tag('aws.region'), 'us-west-2') + self.assertEqual(span.get_tag('aws.operation'), 'ListStreams') + assert_span_http_status_code(span, 200) + self.assertEqual(span.service, 'aws.kinesis') + self.assertEqual(span.resource, 'kinesis.liststreams') + + @mark_asyncio + def test_lambda_client(self): + with aiobotocore_client('lambda', self.tracer) as lambda_client: + # https://github.com/spulec/moto/issues/906 + yield from lambda_client.list_functions(MaxItems=5) + + traces = self.tracer.writer.pop_traces() + self.assertEqual(len(traces), 1) + self.assertEqual(len(traces[0]), 1) + + span = traces[0][0] + self.assertEqual(span.get_tag('aws.region'), 'us-west-2') + self.assertEqual(span.get_tag('aws.operation'), 'ListFunctions') + assert_span_http_status_code(span, 200) + self.assertEqual(span.service, 'aws.lambda') + self.assertEqual(span.resource, 'lambda.listfunctions') + + @mark_asyncio + def test_kms_client(self): + with aiobotocore_client('kms', self.tracer) as kms: + yield from kms.list_keys(Limit=21) + + traces = self.tracer.writer.pop_traces() + self.assertEqual(len(traces), 1) + self.assertEqual(len(traces[0]), 1) + + span = traces[0][0] + self.assertEqual(span.get_tag('aws.region'), 'us-west-2') + self.assertEqual(span.get_tag('aws.operation'), 'ListKeys') + assert_span_http_status_code(span, 200) + self.assertEqual(span.service, 'aws.kms') + self.assertEqual(span.resource, 'kms.listkeys') + # checking for protection on STS against security leak + self.assertEqual(span.get_tag('params'), None) + + @mark_asyncio + def test_unpatch(self): + unpatch() + with aiobotocore_client('kinesis', self.tracer) as kinesis: + yield from kinesis.list_streams() + + traces = self.tracer.writer.pop_traces() + self.assertEqual(len(traces), 0) + + @mark_asyncio + def test_double_patch(self): + patch() + with aiobotocore_client('sqs', self.tracer) as sqs: + yield from sqs.list_queues() + + traces = self.tracer.writer.pop_traces() + self.assertEqual(len(traces), 1) + self.assertEqual(len(traces[0]), 1) + + @mark_asyncio + def test_opentraced_client(self): + from tests.opentracer.utils import init_tracer + + ot_tracer = init_tracer('my_svc', self.tracer) + + with ot_tracer.start_active_span('ot_outer_span'): + with aiobotocore_client('ec2', self.tracer) as ec2: + yield from ec2.describe_instances() + + traces = self.tracer.writer.pop_traces() + print(traces) + self.assertEqual(len(traces), 1) + self.assertEqual(len(traces[0]), 2) + ot_span = traces[0][0] + dd_span = traces[0][1] + + self.assertEqual(ot_span.resource, 'ot_outer_span') + self.assertEqual(ot_span.service, 'my_svc') + + # confirm the parenting + self.assertEqual(ot_span.parent_id, None) + self.assertEqual(dd_span.parent_id, ot_span.span_id) + + self.assertEqual(dd_span.get_tag('aws.agent'), 'aiobotocore') + self.assertEqual(dd_span.get_tag('aws.region'), 'us-west-2') + self.assertEqual(dd_span.get_tag('aws.operation'), 'DescribeInstances') + assert_span_http_status_code(dd_span, 200) + self.assertEqual(dd_span.get_metric('retry_attempts'), 0) + self.assertEqual(dd_span.service, 'aws.ec2') + self.assertEqual(dd_span.resource, 'ec2.describeinstances') + self.assertEqual(dd_span.name, 'ec2.command') + + @mark_asyncio + def test_opentraced_s3_client(self): + from tests.opentracer.utils import init_tracer + + ot_tracer = init_tracer('my_svc', self.tracer) + + with ot_tracer.start_active_span('ot_outer_span'): + with aiobotocore_client('s3', self.tracer) as s3: + yield from s3.list_buckets() + with ot_tracer.start_active_span('ot_inner_span1'): + yield from s3.list_buckets() + with ot_tracer.start_active_span('ot_inner_span2'): + pass + + traces = self.tracer.writer.pop_traces() + self.assertEqual(len(traces), 1) + self.assertEqual(len(traces[0]), 5) + ot_outer_span = traces[0][0] + dd_span = traces[0][1] + ot_inner_span = traces[0][2] + dd_span2 = traces[0][3] + ot_inner_span2 = traces[0][4] + + self.assertEqual(ot_outer_span.resource, 'ot_outer_span') + self.assertEqual(ot_inner_span.resource, 'ot_inner_span1') + self.assertEqual(ot_inner_span2.resource, 'ot_inner_span2') + + # confirm the parenting + self.assertEqual(ot_outer_span.parent_id, None) + self.assertEqual(dd_span.parent_id, ot_outer_span.span_id) + self.assertEqual(ot_inner_span.parent_id, ot_outer_span.span_id) + self.assertEqual(dd_span2.parent_id, ot_inner_span.span_id) + self.assertEqual(ot_inner_span2.parent_id, ot_outer_span.span_id) + + self.assertEqual(dd_span.get_tag('aws.operation'), 'ListBuckets') + assert_span_http_status_code(dd_span, 200) + self.assertEqual(dd_span.service, 'aws.s3') + self.assertEqual(dd_span.resource, 's3.listbuckets') + self.assertEqual(dd_span.name, 's3.command') + + self.assertEqual(dd_span2.get_tag('aws.operation'), 'ListBuckets') + assert_span_http_status_code(dd_span2, 200) + self.assertEqual(dd_span2.service, 'aws.s3') + self.assertEqual(dd_span2.resource, 's3.listbuckets') + self.assertEqual(dd_span2.name, 's3.command') diff --git a/tests/contrib/aiobotocore/utils.py b/tests/contrib/aiobotocore/utils.py new file mode 100644 index 0000000000..a57d5545c9 --- /dev/null +++ b/tests/contrib/aiobotocore/utils.py @@ -0,0 +1,36 @@ +import aiobotocore.session + +from ddtrace import Pin +from contextlib import contextmanager + + +LOCALSTACK_ENDPOINT_URL = { + 's3': 'http://localhost:5000', + 'ec2': 'http://localhost:5001', + 'kms': 'http://localhost:5002', + 'sqs': 'http://localhost:5003', + 'lambda': 'http://localhost:5004', + 'kinesis': 'http://localhost:5005', +} + + +@contextmanager +def aiobotocore_client(service, tracer): + """Helper function that creates a new aiobotocore client so that + it is closed at the end of the context manager. + """ + session = aiobotocore.session.get_session() + endpoint = LOCALSTACK_ENDPOINT_URL[service] + client = session.create_client( + service, + region_name='us-west-2', + endpoint_url=endpoint, + aws_access_key_id='aws', + aws_secret_access_key='aws', + aws_session_token='aws', + ) + Pin.override(client, tracer=tracer) + try: + yield client + finally: + client.close() diff --git a/tests/contrib/aiohttp/__init__.py b/tests/contrib/aiohttp/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/aiohttp/app/__init__.py b/tests/contrib/aiohttp/app/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/aiohttp/app/statics/empty.txt b/tests/contrib/aiohttp/app/statics/empty.txt new file mode 100644 index 0000000000..3083bfa69c --- /dev/null +++ b/tests/contrib/aiohttp/app/statics/empty.txt @@ -0,0 +1 @@ +Static file diff --git a/tests/contrib/aiohttp/app/templates/__init__.py b/tests/contrib/aiohttp/app/templates/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/aiohttp/app/templates/template.jinja2 b/tests/contrib/aiohttp/app/templates/template.jinja2 new file mode 100644 index 0000000000..8d15644bd4 --- /dev/null +++ b/tests/contrib/aiohttp/app/templates/template.jinja2 @@ -0,0 +1 @@ +{{text}} diff --git a/tests/contrib/aiohttp/app/web.py b/tests/contrib/aiohttp/app/web.py new file mode 100644 index 0000000000..1436aeba82 --- /dev/null +++ b/tests/contrib/aiohttp/app/web.py @@ -0,0 +1,168 @@ +import os +import jinja2 +import asyncio +import aiohttp_jinja2 + +from aiohttp import web + + +BASE_DIR = os.path.dirname(os.path.realpath(__file__)) +STATIC_DIR = os.path.join(BASE_DIR, 'statics') +TEMPLATE_DIR = os.path.join(BASE_DIR, 'templates') + + +@asyncio.coroutine +def home(request): + return web.Response(text="What's tracing?") + + +@asyncio.coroutine +def name(request): + name = request.match_info.get('name', 'Anonymous') + return web.Response(text='Hello {}'.format(name)) + + +@asyncio.coroutine +def coroutine_chaining(request): + tracer = get_tracer(request) + span = tracer.trace('aiohttp.coro_1') + text = yield from coro_2(request) + span.finish() + return web.Response(text=text) + + +def route_exception(request): + raise Exception('error') + + +@asyncio.coroutine +def route_async_exception(request): + raise Exception('error') + + +@asyncio.coroutine +def route_wrapped_coroutine(request): + tracer = get_tracer(request) + + @tracer.wrap('nested') + @asyncio.coroutine + def nested(): + yield from asyncio.sleep(0.25) + + yield from nested() + return web.Response(text='OK') + + +@asyncio.coroutine +def route_sub_span(request): + tracer = get_tracer(request) + with tracer.trace('aiohttp.sub_span') as span: + span.set_tag('sub_span', 'true') + return web.Response(text='OK') + + +@asyncio.coroutine +def uncaught_server_error(request): + return 1 / 0 + + +@asyncio.coroutine +def caught_server_error(request): + return web.Response(text='NOT OK', status=503) + + +@asyncio.coroutine +def coro_2(request): + tracer = get_tracer(request) + with tracer.trace('aiohttp.coro_2') as span: + span.set_tag('aiohttp.worker', 'pending') + return 'OK' + + +@asyncio.coroutine +def template_handler(request): + return aiohttp_jinja2.render_template('template.jinja2', request, {'text': 'OK'}) + + +@aiohttp_jinja2.template('template.jinja2') +@asyncio.coroutine +def template_decorator(request): + return {'text': 'OK'} + + +@aiohttp_jinja2.template('error.jinja2') +@asyncio.coroutine +def template_error(request): + return {} + + +@asyncio.coroutine +def delayed_handler(request): + yield from asyncio.sleep(0.01) + return web.Response(text='Done') + + +@asyncio.coroutine +def noop_middleware(app, handler): + @asyncio.coroutine + def middleware_handler(request): + # noop middleware + response = yield from handler(request) + return response + return middleware_handler + + +def setup_app(loop): + """ + Use this method to create the app. It must receive + the ``loop`` provided by the ``get_app`` method of + ``AioHTTPTestCase`` class. + """ + # configure the app + app = web.Application( + loop=loop, + middlewares=[ + noop_middleware, + ], + ) + app.router.add_get('/', home) + app.router.add_get('/delayed/', delayed_handler) + app.router.add_get('/echo/{name}', name) + app.router.add_get('/chaining/', coroutine_chaining) + app.router.add_get('/exception', route_exception) + app.router.add_get('/async_exception', route_async_exception) + app.router.add_get('/wrapped_coroutine', route_wrapped_coroutine) + app.router.add_get('/sub_span', route_sub_span) + app.router.add_get('/uncaught_server_error', uncaught_server_error) + app.router.add_get('/caught_server_error', caught_server_error) + app.router.add_static('/statics', STATIC_DIR) + # configure templates + set_memory_loader(app) + app.router.add_get('/template/', template_handler) + app.router.add_get('/template_decorator/', template_decorator) + app.router.add_get('/template_error/', template_error) + + return app + + +def set_memory_loader(app): + aiohttp_jinja2.setup(app, loader=jinja2.DictLoader({ + 'template.jinja2': '{{text}}', + 'error.jinja2': '{{1/0}}', + })) + + +def set_filesystem_loader(app): + aiohttp_jinja2.setup(app, loader=jinja2.FileSystemLoader(TEMPLATE_DIR)) + + +def set_package_loader(app): + aiohttp_jinja2.setup(app, loader=jinja2.PackageLoader('tests.contrib.aiohttp.app', 'templates')) + + +def get_tracer(request): + """ + Utility function to retrieve the tracer from the given ``request``. + It is meant to be used only for testing purposes. + """ + return request['__datadog_request_span'].tracer diff --git a/tests/contrib/aiohttp/test_middleware.py b/tests/contrib/aiohttp/test_middleware.py new file mode 100644 index 0000000000..77eefc68ca --- /dev/null +++ b/tests/contrib/aiohttp/test_middleware.py @@ -0,0 +1,490 @@ +import asyncio + +from aiohttp.test_utils import unittest_run_loop + +from ddtrace.contrib.aiohttp.middlewares import trace_app, trace_middleware, CONFIG_KEY +from ddtrace.ext import http +from ddtrace.sampler import RateSampler +from ddtrace.constants import SAMPLING_PRIORITY_KEY, ANALYTICS_SAMPLE_RATE_KEY + +from opentracing.scope_managers.asyncio import AsyncioScopeManager +from tests.opentracer.utils import init_tracer +from .utils import TraceTestCase +from .app.web import setup_app, noop_middleware +from ...utils import assert_span_http_status_code + + +class TestTraceMiddleware(TraceTestCase): + """ + Ensures that the trace Middleware creates root spans at + the beginning of a request. + """ + def enable_tracing(self): + trace_app(self.app, self.tracer) + + @unittest_run_loop + @asyncio.coroutine + def test_handler(self): + # it should create a root span when there is a handler hit + # with the proper tags + request = yield from self.client.request('GET', '/') + assert 200 == request.status + text = yield from request.text() + assert 'What\'s tracing?' == text + # the trace is created + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + span = traces[0][0] + # with the right fields + assert 'aiohttp.request' == span.name + assert 'aiohttp-web' == span.service + assert 'web' == span.span_type + assert 'GET /' == span.resource + assert str(self.client.make_url('/')) == span.get_tag(http.URL) + assert 'GET' == span.get_tag('http.method') + assert_span_http_status_code(span, 200) + assert 0 == span.error + + @asyncio.coroutine + def _test_param_handler(self, query_string=''): + if query_string: + fqs = '?' + query_string + else: + fqs = '' + # it should manage properly handlers with params + request = yield from self.client.request('GET', '/echo/team' + fqs) + assert 200 == request.status + text = yield from request.text() + assert 'Hello team' == text + # the trace is created + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + span = traces[0][0] + # with the right fields + assert 'GET /echo/{name}' == span.resource + assert str(self.client.make_url('/echo/team')) == span.get_tag(http.URL) + assert_span_http_status_code(span, 200) + if self.app[CONFIG_KEY].get('trace_query_string'): + assert query_string == span.get_tag(http.QUERY_STRING) + else: + assert http.QUERY_STRING not in span.meta + + @unittest_run_loop + def test_param_handler(self): + return self._test_param_handler() + + @unittest_run_loop + def test_query_string(self): + return self._test_param_handler('foo=bar') + + @unittest_run_loop + def test_query_string_duplicate_keys(self): + return self._test_param_handler('foo=bar&foo=baz&x=y') + + @unittest_run_loop + def test_param_handler_trace(self): + self.app[CONFIG_KEY]['trace_query_string'] = True + return self._test_param_handler() + + @unittest_run_loop + def test_query_string_trace(self): + self.app[CONFIG_KEY]['trace_query_string'] = True + return self._test_param_handler('foo=bar') + + @unittest_run_loop + def test_query_string_duplicate_keys_trace(self): + self.app[CONFIG_KEY]['trace_query_string'] = True + return self._test_param_handler('foo=bar&foo=baz&x=y') + + @unittest_run_loop + @asyncio.coroutine + def test_404_handler(self): + # it should not pollute the resource space + request = yield from self.client.request('GET', '/404/not_found') + assert 404 == request.status + # the trace is created + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + span = traces[0][0] + # with the right fields + assert '404' == span.resource + assert str(self.client.make_url('/404/not_found')) == span.get_tag(http.URL) + assert 'GET' == span.get_tag('http.method') + assert_span_http_status_code(span, 404) + + @unittest_run_loop + @asyncio.coroutine + def test_server_error(self): + """ + When a server error occurs (uncaught exception) + The span should be flagged as an error + """ + request = yield from self.client.request('GET', '/uncaught_server_error') + assert request.status == 500 + traces = self.tracer.writer.pop_traces() + assert len(traces) == 1 + assert len(traces[0]) == 1 + span = traces[0][0] + assert span.get_tag('http.method') == 'GET' + assert_span_http_status_code(span, 500) + assert span.error == 1 + + @unittest_run_loop + @asyncio.coroutine + def test_500_response_code(self): + """ + When a 5XX response code is returned + The span should be flagged as an error + """ + request = yield from self.client.request('GET', '/caught_server_error') + assert request.status == 503 + traces = self.tracer.writer.pop_traces() + assert len(traces) == 1 + assert len(traces[0]) == 1 + span = traces[0][0] + assert span.get_tag('http.method') == 'GET' + assert_span_http_status_code(span, 503) + assert span.error == 1 + + @unittest_run_loop + @asyncio.coroutine + def test_coroutine_chaining(self): + # it should create a trace with multiple spans + request = yield from self.client.request('GET', '/chaining/') + assert 200 == request.status + text = yield from request.text() + assert 'OK' == text + # the trace is created + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 3 == len(traces[0]) + root = traces[0][0] + handler = traces[0][1] + coroutine = traces[0][2] + # root span created in the middleware + assert 'aiohttp.request' == root.name + assert 'GET /chaining/' == root.resource + assert str(self.client.make_url('/chaining/')) == root.get_tag(http.URL) + assert 'GET' == root.get_tag('http.method') + assert_span_http_status_code(root, 200) + # span created in the coroutine_chaining handler + assert 'aiohttp.coro_1' == handler.name + assert root.span_id == handler.parent_id + assert root.trace_id == handler.trace_id + # span created in the coro_2 handler + assert 'aiohttp.coro_2' == coroutine.name + assert handler.span_id == coroutine.parent_id + assert root.trace_id == coroutine.trace_id + + @unittest_run_loop + @asyncio.coroutine + def test_static_handler(self): + # it should create a trace with multiple spans + request = yield from self.client.request('GET', '/statics/empty.txt') + assert 200 == request.status + text = yield from request.text() + assert 'Static file\n' == text + # the trace is created + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + span = traces[0][0] + # root span created in the middleware + assert 'aiohttp.request' == span.name + assert 'GET /statics' == span.resource + assert str(self.client.make_url('/statics/empty.txt')) == span.get_tag(http.URL) + assert 'GET' == span.get_tag('http.method') + assert_span_http_status_code(span, 200) + + @unittest_run_loop + @asyncio.coroutine + def test_middleware_applied_twice(self): + # it should be idempotent + app = setup_app(self.app.loop) + # the middleware is not present + assert 1 == len(app.middlewares) + assert noop_middleware == app.middlewares[0] + # the middleware is present (with the noop middleware) + trace_app(app, self.tracer) + assert 2 == len(app.middlewares) + # applying the middleware twice doesn't add it again + trace_app(app, self.tracer) + assert 2 == len(app.middlewares) + # and the middleware is always the first + assert trace_middleware == app.middlewares[0] + assert noop_middleware == app.middlewares[1] + + @unittest_run_loop + @asyncio.coroutine + def test_exception(self): + request = yield from self.client.request('GET', '/exception') + assert 500 == request.status + yield from request.text() + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + spans = traces[0] + assert 1 == len(spans) + span = spans[0] + assert 1 == span.error + assert 'GET /exception' == span.resource + assert 'error' == span.get_tag('error.msg') + assert 'Exception: error' in span.get_tag('error.stack') + + @unittest_run_loop + @asyncio.coroutine + def test_async_exception(self): + request = yield from self.client.request('GET', '/async_exception') + assert 500 == request.status + yield from request.text() + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + spans = traces[0] + assert 1 == len(spans) + span = spans[0] + assert 1 == span.error + assert 'GET /async_exception' == span.resource + assert 'error' == span.get_tag('error.msg') + assert 'Exception: error' in span.get_tag('error.stack') + + @unittest_run_loop + @asyncio.coroutine + def test_wrapped_coroutine(self): + request = yield from self.client.request('GET', '/wrapped_coroutine') + assert 200 == request.status + text = yield from request.text() + assert 'OK' == text + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + spans = traces[0] + assert 2 == len(spans) + span = spans[0] + assert 'GET /wrapped_coroutine' == span.resource + span = spans[1] + assert 'nested' == span.name + assert span.duration > 0.25, 'span.duration={0}'.format(span.duration) + + @unittest_run_loop + @asyncio.coroutine + def test_distributed_tracing(self): + # distributed tracing is enabled by default + tracing_headers = { + 'x-datadog-trace-id': '100', + 'x-datadog-parent-id': '42', + } + + request = yield from self.client.request('GET', '/', headers=tracing_headers) + assert 200 == request.status + text = yield from request.text() + assert "What's tracing?" == text + # the trace is created + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + span = traces[0][0] + # with the right trace_id and parent_id + assert span.trace_id == 100 + assert span.parent_id == 42 + assert span.get_metric(SAMPLING_PRIORITY_KEY) is None + + @unittest_run_loop + @asyncio.coroutine + def test_distributed_tracing_with_sampling_true(self): + self.tracer.priority_sampler = RateSampler(0.1) + + tracing_headers = { + 'x-datadog-trace-id': '100', + 'x-datadog-parent-id': '42', + 'x-datadog-sampling-priority': '1', + } + + request = yield from self.client.request('GET', '/', headers=tracing_headers) + assert 200 == request.status + text = yield from request.text() + assert "What's tracing?" == text + # the trace is created + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + span = traces[0][0] + # with the right trace_id and parent_id + assert 100 == span.trace_id + assert 42 == span.parent_id + assert 1 == span.get_metric(SAMPLING_PRIORITY_KEY) + + @unittest_run_loop + @asyncio.coroutine + def test_distributed_tracing_with_sampling_false(self): + self.tracer.priority_sampler = RateSampler(0.9) + + tracing_headers = { + 'x-datadog-trace-id': '100', + 'x-datadog-parent-id': '42', + 'x-datadog-sampling-priority': '0', + } + + request = yield from self.client.request('GET', '/', headers=tracing_headers) + assert 200 == request.status + text = yield from request.text() + assert "What's tracing?" == text + # the trace is created + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + span = traces[0][0] + # with the right trace_id and parent_id + assert 100 == span.trace_id + assert 42 == span.parent_id + assert 0 == span.get_metric(SAMPLING_PRIORITY_KEY) + + @unittest_run_loop + @asyncio.coroutine + def test_distributed_tracing_disabled(self): + # pass headers for distributed tracing + self.app['datadog_trace']['distributed_tracing_enabled'] = False + tracing_headers = { + 'x-datadog-trace-id': '100', + 'x-datadog-parent-id': '42', + } + + request = yield from self.client.request('GET', '/', headers=tracing_headers) + assert 200 == request.status + text = yield from request.text() + assert "What's tracing?" == text + # the trace is created + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + span = traces[0][0] + # distributed tracing must be ignored by default + assert span.trace_id != 100 + assert span.parent_id != 42 + + @unittest_run_loop + @asyncio.coroutine + def test_distributed_tracing_sub_span(self): + self.tracer.priority_sampler = RateSampler(1.0) + + # activate distributed tracing + tracing_headers = { + 'x-datadog-trace-id': '100', + 'x-datadog-parent-id': '42', + 'x-datadog-sampling-priority': '0', + } + + request = yield from self.client.request('GET', '/sub_span', headers=tracing_headers) + assert 200 == request.status + text = yield from request.text() + assert 'OK' == text + # the trace is created + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 2 == len(traces[0]) + span, sub_span = traces[0][0], traces[0][1] + # with the right trace_id and parent_id + assert 100 == span.trace_id + assert 42 == span.parent_id + assert 0 == span.get_metric(SAMPLING_PRIORITY_KEY) + # check parenting is OK with custom sub-span created within server code + assert 100 == sub_span.trace_id + assert span.span_id == sub_span.parent_id + assert sub_span.get_metric(SAMPLING_PRIORITY_KEY) is None + + def _assert_200_parenting(self, traces): + """Helper to assert parenting when handling aiohttp requests. + + This is used to ensure that parenting is consistent between Datadog + and OpenTracing implementations of tracing. + """ + assert 2 == len(traces) + assert 1 == len(traces[0]) + + # the inner span will be the first trace since it completes before the + # outer span does + inner_span = traces[0][0] + outer_span = traces[1][0] + + # confirm the parenting + assert outer_span.parent_id is None + assert inner_span.parent_id is None + + assert outer_span.name == 'aiohttp_op' + + # with the right fields + assert 'aiohttp.request' == inner_span.name + assert 'aiohttp-web' == inner_span.service + assert 'web' == inner_span.span_type + assert 'GET /' == inner_span.resource + assert str(self.client.make_url('/')) == inner_span.get_tag(http.URL) + assert 'GET' == inner_span.get_tag('http.method') + assert_span_http_status_code(inner_span, 200) + assert 0 == inner_span.error + + @unittest_run_loop + @asyncio.coroutine + def test_parenting_200_dd(self): + with self.tracer.trace('aiohttp_op'): + request = yield from self.client.request('GET', '/') + assert 200 == request.status + text = yield from request.text() + + assert "What's tracing?" == text + traces = self.tracer.writer.pop_traces() + self._assert_200_parenting(traces) + + @unittest_run_loop + @asyncio.coroutine + def test_parenting_200_ot(self): + """OpenTracing version of test_handler.""" + ot_tracer = init_tracer('aiohttp_svc', self.tracer, scope_manager=AsyncioScopeManager()) + + with ot_tracer.start_active_span('aiohttp_op'): + request = yield from self.client.request('GET', '/') + assert 200 == request.status + text = yield from request.text() + + assert "What's tracing?" == text + traces = self.tracer.writer.pop_traces() + self._assert_200_parenting(traces) + + @unittest_run_loop + @asyncio.coroutine + def test_analytics_integration_enabled(self): + """ Check trace has analytics sample rate set """ + self.app['datadog_trace']['analytics_enabled'] = True + self.app['datadog_trace']['analytics_sample_rate'] = 0.5 + request = yield from self.client.request('GET', '/template/') + yield from request.text() + + # Assert root span sets the appropriate metric + self.assert_structure( + dict(name='aiohttp.request', metrics={ANALYTICS_SAMPLE_RATE_KEY: 0.5}) + ) + + @unittest_run_loop + @asyncio.coroutine + def test_analytics_integration_default(self): + """ Check trace has analytics sample rate set """ + request = yield from self.client.request('GET', '/template/') + yield from request.text() + + # Assert root span does not have the appropriate metric + root = self.get_root_span() + self.assertIsNone(root.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + @unittest_run_loop + @asyncio.coroutine + def test_analytics_integration_disabled(self): + """ Check trace has analytics sample rate set """ + self.app['datadog_trace']['analytics_enabled'] = False + request = yield from self.client.request('GET', '/template/') + yield from request.text() + + # Assert root span does not have the appropriate metric + root = self.get_root_span() + self.assertIsNone(root.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) diff --git a/tests/contrib/aiohttp/test_request.py b/tests/contrib/aiohttp/test_request.py new file mode 100644 index 0000000000..b13e848f40 --- /dev/null +++ b/tests/contrib/aiohttp/test_request.py @@ -0,0 +1,77 @@ +import threading +import asyncio +import aiohttp_jinja2 + +from urllib import request +from aiohttp.test_utils import unittest_run_loop + +from ddtrace.pin import Pin +from ddtrace.contrib.aiohttp.patch import patch, unpatch +from ddtrace.contrib.aiohttp.middlewares import trace_app + +from .utils import TraceTestCase + + +class TestRequestTracing(TraceTestCase): + """ + Ensures that the trace includes all traced components. + """ + def enable_tracing(self): + # enabled tracing: + # * middleware + # * templates + trace_app(self.app, self.tracer) + patch() + Pin.override(aiohttp_jinja2, tracer=self.tracer) + + def disable_tracing(self): + unpatch() + + @unittest_run_loop + @asyncio.coroutine + def test_full_request(self): + # it should create a root span when there is a handler hit + # with the proper tags + request = yield from self.client.request('GET', '/template/') + assert 200 == request.status + yield from request.text() + # the trace is created + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 2 == len(traces[0]) + request_span = traces[0][0] + template_span = traces[0][1] + # request + assert 'aiohttp-web' == request_span.service + assert 'aiohttp.request' == request_span.name + assert 'GET /template/' == request_span.resource + # template + assert 'aiohttp-web' == template_span.service + assert 'aiohttp.template' == template_span.name + assert 'aiohttp.template' == template_span.resource + + @unittest_run_loop + @asyncio.coroutine + def test_multiple_full_request(self): + # it should handle multiple requests using the same loop + def make_requests(): + url = self.client.make_url('/delayed/') + response = request.urlopen(str(url)).read().decode('utf-8') + assert 'Done' == response + + # blocking call executed in different threads + threads = [threading.Thread(target=make_requests) for _ in range(10)] + for t in threads: + t.daemon = True + t.start() + + # we should yield so that this loop can handle + # threads' requests + yield from asyncio.sleep(0.5) + for t in threads: + t.join(timeout=0.5) + + # the trace is created + traces = self.tracer.writer.pop_traces() + assert 10 == len(traces) + assert 1 == len(traces[0]) diff --git a/tests/contrib/aiohttp/test_request_safety.py b/tests/contrib/aiohttp/test_request_safety.py new file mode 100644 index 0000000000..6f4c93947f --- /dev/null +++ b/tests/contrib/aiohttp/test_request_safety.py @@ -0,0 +1,87 @@ +import threading +import asyncio +import aiohttp_jinja2 + +from urllib import request +from aiohttp.test_utils import unittest_run_loop + +from ddtrace.pin import Pin +from ddtrace.provider import DefaultContextProvider +from ddtrace.contrib.aiohttp.patch import patch, unpatch +from ddtrace.contrib.aiohttp.middlewares import trace_app + +from .utils import TraceTestCase + + +class TestAiohttpSafety(TraceTestCase): + """ + Ensure that if the ``AsyncioTracer`` is not properly configured, + bad traces are produced but the ``Context`` object will not + leak memory. + """ + def enable_tracing(self): + # aiohttp TestCase with the wrong context provider + trace_app(self.app, self.tracer) + patch() + Pin.override(aiohttp_jinja2, tracer=self.tracer) + self.tracer.configure(context_provider=DefaultContextProvider()) + + def disable_tracing(self): + unpatch() + + @unittest_run_loop + @asyncio.coroutine + def test_full_request(self): + # it should create a root span when there is a handler hit + # with the proper tags + request = yield from self.client.request('GET', '/template/') + assert 200 == request.status + yield from request.text() + # the trace is created + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 2 == len(traces[0]) + request_span = traces[0][0] + template_span = traces[0][1] + # request + assert 'aiohttp-web' == request_span.service + assert 'aiohttp.request' == request_span.name + assert 'GET /template/' == request_span.resource + # template + assert 'aiohttp-web' == template_span.service + assert 'aiohttp.template' == template_span.name + assert 'aiohttp.template' == template_span.resource + + @unittest_run_loop + @asyncio.coroutine + def test_multiple_full_request(self): + NUMBER_REQUESTS = 10 + responses = [] + + # it should produce a wrong trace, but the Context must + # be finished + def make_requests(): + url = self.client.make_url('/delayed/') + response = request.urlopen(str(url)).read().decode('utf-8') + responses.append(response) + + # blocking call executed in different threads + ctx = self.tracer.get_call_context() + threads = [threading.Thread(target=make_requests) for _ in range(NUMBER_REQUESTS)] + for t in threads: + t.start() + + # yield back to the event loop until all requests are processed + while len(responses) < NUMBER_REQUESTS: + yield from asyncio.sleep(0.001) + + for response in responses: + assert 'Done' == response + + for t in threads: + t.join() + + # the trace is wrong but the Context is finished + spans = self.tracer.writer.pop() + assert NUMBER_REQUESTS == len(spans) + assert 0 == len(ctx._trace) diff --git a/tests/contrib/aiohttp/test_templates.py b/tests/contrib/aiohttp/test_templates.py new file mode 100644 index 0000000000..bf2c1f0a46 --- /dev/null +++ b/tests/contrib/aiohttp/test_templates.py @@ -0,0 +1,120 @@ +import asyncio +import aiohttp_jinja2 + +from aiohttp.test_utils import unittest_run_loop + +from ddtrace.pin import Pin +from ddtrace.contrib.aiohttp.patch import patch, unpatch + +from .utils import TraceTestCase +from .app.web import set_filesystem_loader, set_package_loader + + +class TestTraceTemplate(TraceTestCase): + """ + Ensures that the aiohttp_jinja2 library is properly traced. + """ + def enable_tracing(self): + patch() + Pin.override(aiohttp_jinja2, tracer=self.tracer) + + def disable_tracing(self): + unpatch() + + @unittest_run_loop + @asyncio.coroutine + def test_template_rendering(self): + # it should trace a template rendering + request = yield from self.client.request('GET', '/template/') + assert 200 == request.status + text = yield from request.text() + assert 'OK' == text + # the trace is created + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + span = traces[0][0] + # with the right fields + assert 'aiohttp.template' == span.name + assert 'template' == span.span_type + assert '/template.jinja2' == span.get_tag('aiohttp.template') + assert 0 == span.error + + @unittest_run_loop + @asyncio.coroutine + def test_template_rendering_filesystem(self): + # it should trace a template rendering with a FileSystemLoader + set_filesystem_loader(self.app) + request = yield from self.client.request('GET', '/template/') + assert 200 == request.status + text = yield from request.text() + assert 'OK' == text + # the trace is created + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + span = traces[0][0] + # with the right fields + assert 'aiohttp.template' == span.name + assert 'template' == span.span_type + assert '/template.jinja2' == span.get_tag('aiohttp.template') + assert 0 == span.error + + @unittest_run_loop + @asyncio.coroutine + def test_template_rendering_package(self): + # it should trace a template rendering with a PackageLoader + set_package_loader(self.app) + request = yield from self.client.request('GET', '/template/') + assert 200 == request.status + text = yield from request.text() + assert 'OK' == text + # the trace is created + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + span = traces[0][0] + # with the right fields + assert 'aiohttp.template' == span.name + assert 'template' == span.span_type + assert 'templates/template.jinja2' == span.get_tag('aiohttp.template') + assert 0 == span.error + + @unittest_run_loop + @asyncio.coroutine + def test_template_decorator(self): + # it should trace a template rendering + request = yield from self.client.request('GET', '/template_decorator/') + assert 200 == request.status + text = yield from request.text() + assert 'OK' == text + # the trace is created + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + span = traces[0][0] + # with the right fields + assert 'aiohttp.template' == span.name + assert 'template' == span.span_type + assert '/template.jinja2' == span.get_tag('aiohttp.template') + assert 0 == span.error + + @unittest_run_loop + @asyncio.coroutine + def test_template_error(self): + # it should trace a template rendering + request = yield from self.client.request('GET', '/template_error/') + assert 500 == request.status + yield from request.text() + # the trace is created + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + span = traces[0][0] + # with the right fields + assert 'aiohttp.template' == span.name + assert 'template' == span.span_type + assert '/error.jinja2' == span.get_tag('aiohttp.template') + assert 1 == span.error + assert 'division by zero' == span.get_tag('error.msg') + assert 'ZeroDivisionError: division by zero' in span.get_tag('error.stack') diff --git a/tests/contrib/aiohttp/utils.py b/tests/contrib/aiohttp/utils.py new file mode 100644 index 0000000000..bb5ce46c92 --- /dev/null +++ b/tests/contrib/aiohttp/utils.py @@ -0,0 +1,37 @@ +import asyncio + +from aiohttp.test_utils import AioHTTPTestCase + +from .app.web import setup_app +from ...base import BaseTracerTestCase + + +class TraceTestCase(BaseTracerTestCase, AioHTTPTestCase): + """ + Base class that provides a valid ``aiohttp`` application with + the async tracer. + """ + def enable_tracing(self): + pass + + def disable_tracing(self): + pass + + def tearDown(self): + # unpatch the aiohttp_jinja2 module + super(TraceTestCase, self).tearDown() + self.disable_tracing() + + def get_app(self, loop=None): + """ + Override the get_app method to return the test application + """ + # aiohttp 2.0+ stores the loop instance in self.loop; for + # backward compatibility, we should expect a `loop` argument + loop = loop or self.loop + # create the app with the testing loop + self.app = setup_app(loop) + asyncio.set_event_loop(loop) + # trace the app + self.enable_tracing() + return self.app diff --git a/tests/contrib/aiopg/__init__.py b/tests/contrib/aiopg/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/aiopg/py35/__init__.py b/tests/contrib/aiopg/py35/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/aiopg/py35/test.py b/tests/contrib/aiopg/py35/test.py new file mode 100644 index 0000000000..8c32de754d --- /dev/null +++ b/tests/contrib/aiopg/py35/test.py @@ -0,0 +1,63 @@ +# stdlib +import asyncio + +# 3p +import aiopg + +# project +from ddtrace.contrib.aiopg.patch import patch, unpatch +from ddtrace import Pin + +# testing +from tests.contrib.config import POSTGRES_CONFIG +from tests.contrib.asyncio.utils import AsyncioTestCase, mark_asyncio + + +TEST_PORT = str(POSTGRES_CONFIG['port']) + + +class TestPsycopgPatch(AsyncioTestCase): + # default service + TEST_SERVICE = 'postgres' + + def setUp(self): + super().setUp() + self._conn = None + patch() + + def tearDown(self): + super().tearDown() + if self._conn and not self._conn.closed: + self._conn.close() + + unpatch() + + @asyncio.coroutine + def _get_conn_and_tracer(self): + conn = self._conn = yield from aiopg.connect(**POSTGRES_CONFIG) + Pin.get_from(conn).clone(tracer=self.tracer).onto(conn) + + return conn, self.tracer + + async def _test_cursor_ctx_manager(self): + conn, tracer = await self._get_conn_and_tracer() + cur = await conn.cursor() + t = type(cur) + + async with conn.cursor() as cur: + assert t == type(cur), '%s != %s' % (t, type(cur)) + await cur.execute(query='select \'blah\'') + rows = await cur.fetchall() + assert len(rows) == 1 + assert rows[0][0] == 'blah' + + spans = tracer.writer.pop() + assert len(spans) == 1 + span = spans[0] + assert span.name == 'postgres.query' + + @mark_asyncio + def test_cursor_ctx_manager(self): + # ensure cursors work with context managers + # https://github.com/DataDog/dd-trace-py/issues/228 + yield from self._test_cursor_ctx_manager() diff --git a/tests/contrib/aiopg/py37/__init__.py b/tests/contrib/aiopg/py37/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/aiopg/py37/test.py b/tests/contrib/aiopg/py37/test.py new file mode 100644 index 0000000000..493786b9dd --- /dev/null +++ b/tests/contrib/aiopg/py37/test.py @@ -0,0 +1,52 @@ +# 3p +import aiopg + +# project +from ddtrace.contrib.aiopg.patch import patch, unpatch +from ddtrace import Pin + +# testing +from tests.contrib.config import POSTGRES_CONFIG +from tests.contrib.asyncio.utils import AsyncioTestCase, mark_asyncio + + +TEST_PORT = str(POSTGRES_CONFIG['port']) + + +class AiopgTestCase(AsyncioTestCase): + # default service + TEST_SERVICE = 'postgres' + + def setUp(self): + super().setUp() + self._conn = None + patch() + + def tearDown(self): + super().tearDown() + if self._conn and not self._conn.closed: + self._conn.close() + + unpatch() + + async def _get_conn_and_tracer(self): + conn = self._conn = await aiopg.connect(**POSTGRES_CONFIG) + Pin.get_from(conn).clone(tracer=self.tracer).onto(conn) + + return conn, self.tracer + + @mark_asyncio + async def test_async_generator(self): + conn, tracer = await self._get_conn_and_tracer() + cursor = await conn.cursor() + q = 'select \'foobarblah\'' + await cursor.execute(q) + rows = [] + async for row in cursor: + rows.append(row) + + assert rows == [('foobarblah',)] + spans = tracer.writer.pop() + assert len(spans) == 1 + span = spans[0] + assert span.name == 'postgres.query' diff --git a/tests/contrib/aiopg/test.py b/tests/contrib/aiopg/test.py new file mode 100644 index 0000000000..faf7f17a12 --- /dev/null +++ b/tests/contrib/aiopg/test.py @@ -0,0 +1,238 @@ +# stdlib +import time +import asyncio + +# 3p +import aiopg +from psycopg2 import extras + +# project +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.contrib.aiopg.patch import patch, unpatch +from ddtrace import Pin + +# testing +from tests.opentracer.utils import init_tracer +from tests.contrib.config import POSTGRES_CONFIG +from tests.test_tracer import get_dummy_tracer +from tests.contrib.asyncio.utils import AsyncioTestCase, mark_asyncio + + +TEST_PORT = POSTGRES_CONFIG['port'] + + +class AiopgTestCase(AsyncioTestCase): + # default service + TEST_SERVICE = 'postgres' + + def setUp(self): + super().setUp() + self._conn = None + patch() + + def tearDown(self): + super().tearDown() + if self._conn and not self._conn.closed: + self._conn.close() + + unpatch() + + @asyncio.coroutine + def _get_conn_and_tracer(self): + conn = self._conn = yield from aiopg.connect(**POSTGRES_CONFIG) + Pin.get_from(conn).clone(tracer=self.tracer).onto(conn) + + return conn, self.tracer + + @asyncio.coroutine + def assert_conn_is_traced(self, tracer, db, service): + + # ensure the trace aiopg client doesn't add non-standard + # methods + try: + yield from db.execute('select \'foobar\'') + except AttributeError: + pass + + writer = tracer.writer + # Ensure we can run a query and it's correctly traced + q = 'select \'foobarblah\'' + start = time.time() + cursor = yield from db.cursor() + yield from cursor.execute(q) + rows = yield from cursor.fetchall() + end = time.time() + assert rows == [('foobarblah',)] + assert rows + spans = writer.pop() + assert spans + assert len(spans) == 1 + span = spans[0] + assert span.name == 'postgres.query' + assert span.resource == q + assert span.service == service + assert span.meta['sql.query'] == q + assert span.error == 0 + assert span.span_type == 'sql' + assert start <= span.start <= end + assert span.duration <= end - start + + # Ensure OpenTracing compatibility + ot_tracer = init_tracer('aiopg_svc', tracer) + with ot_tracer.start_active_span('aiopg_op'): + cursor = yield from db.cursor() + yield from cursor.execute(q) + rows = yield from cursor.fetchall() + assert rows == [('foobarblah',)] + spans = writer.pop() + assert len(spans) == 2 + ot_span, dd_span = spans + # confirm the parenting + assert ot_span.parent_id is None + assert dd_span.parent_id == ot_span.span_id + assert ot_span.name == 'aiopg_op' + assert ot_span.service == 'aiopg_svc' + assert dd_span.name == 'postgres.query' + assert dd_span.resource == q + assert dd_span.service == service + assert dd_span.meta['sql.query'] == q + assert dd_span.error == 0 + assert dd_span.span_type == 'sql' + + # run a query with an error and ensure all is well + q = 'select * from some_non_existant_table' + cur = yield from db.cursor() + try: + yield from cur.execute(q) + except Exception: + pass + else: + assert 0, 'should have an error' + spans = writer.pop() + assert spans, spans + assert len(spans) == 1 + span = spans[0] + assert span.name == 'postgres.query' + assert span.resource == q + assert span.service == service + assert span.meta['sql.query'] == q + assert span.error == 1 + # assert span.meta['out.host'] == 'localhost' + assert span.metrics['out.port'] == TEST_PORT + assert span.span_type == 'sql' + + @mark_asyncio + def test_disabled_execute(self): + conn, tracer = yield from self._get_conn_and_tracer() + tracer.enabled = False + # these calls were crashing with a previous version of the code. + yield from (yield from conn.cursor()).execute(query='select \'blah\'') + yield from (yield from conn.cursor()).execute('select \'blah\'') + assert not tracer.writer.pop() + + @mark_asyncio + def test_manual_wrap_extension_types(self): + conn, _ = yield from self._get_conn_and_tracer() + # NOTE: this will crash if it doesn't work. + # _ext.register_type(_ext.UUID, conn_or_curs) + # TypeError: argument 2 must be a connection, cursor or None + extras.register_uuid(conn_or_curs=conn) + + @mark_asyncio + def test_connect_factory(self): + tracer = get_dummy_tracer() + + services = ['db', 'another'] + for service in services: + conn, _ = yield from self._get_conn_and_tracer() + Pin.get_from(conn).clone(service=service, tracer=tracer).onto(conn) + yield from self.assert_conn_is_traced(tracer, conn, service) + conn.close() + + # ensure we have the service types + service_meta = tracer.writer.pop_services() + expected = {} + assert service_meta == expected + + @mark_asyncio + def test_patch_unpatch(self): + tracer = get_dummy_tracer() + writer = tracer.writer + + # Test patch idempotence + patch() + patch() + + service = 'fo' + + conn = yield from aiopg.connect(**POSTGRES_CONFIG) + Pin.get_from(conn).clone(service=service, tracer=tracer).onto(conn) + yield from (yield from conn.cursor()).execute('select \'blah\'') + conn.close() + + spans = writer.pop() + assert spans, spans + assert len(spans) == 1 + + # Test unpatch + unpatch() + + conn = yield from aiopg.connect(**POSTGRES_CONFIG) + yield from (yield from conn.cursor()).execute('select \'blah\'') + conn.close() + + spans = writer.pop() + assert not spans, spans + + # Test patch again + patch() + + conn = yield from aiopg.connect(**POSTGRES_CONFIG) + Pin.get_from(conn).clone(service=service, tracer=tracer).onto(conn) + yield from (yield from conn.cursor()).execute('select \'blah\'') + conn.close() + + spans = writer.pop() + assert spans, spans + assert len(spans) == 1 + + +class AiopgAnalyticsTestCase(AiopgTestCase): + @asyncio.coroutine + def trace_spans(self): + conn, _ = yield from self._get_conn_and_tracer() + + Pin.get_from(conn).clone(service='db', tracer=self.tracer).onto(conn) + + cursor = yield from conn.cursor() + yield from cursor.execute('select \'foobar\'') + rows = yield from cursor.fetchall() + assert rows + + return self.get_spans() + + @mark_asyncio + def test_analytics_default(self): + spans = yield from self.trace_spans() + self.assertEqual(len(spans), 1) + self.assertIsNone(spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + @mark_asyncio + def test_analytics_with_rate(self): + with self.override_config( + 'aiopg', + dict(analytics_enabled=True, analytics_sample_rate=0.5) + ): + spans = yield from self.trace_spans() + self.assertEqual(len(spans), 1) + self.assertEqual(spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY), 0.5) + + @mark_asyncio + def test_analytics_without_rate(self): + with self.override_config( + 'aiopg', + dict(analytics_enabled=True) + ): + spans = yield from self.trace_spans() + self.assertEqual(len(spans), 1) + self.assertEqual(spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY), 1.0) diff --git a/tests/contrib/algoliasearch/__init__.py b/tests/contrib/algoliasearch/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/algoliasearch/test.py b/tests/contrib/algoliasearch/test.py new file mode 100644 index 0000000000..45ecb0db3b --- /dev/null +++ b/tests/contrib/algoliasearch/test.py @@ -0,0 +1,148 @@ +from ddtrace import config, patch_all +from ddtrace.contrib.algoliasearch.patch import (patch, unpatch, algoliasearch_version) +from ddtrace.pin import Pin +from tests.base import BaseTracerTestCase + + +class AlgoliasearchTest(BaseTracerTestCase): + def setUp(self): + super(AlgoliasearchTest, self).setUp() + + # dummy values + def search(self, query, args=None, request_options=None): + return { + 'hits': [ + { + 'dummy': 'dummy' + } + ], + 'processingTimeMS': 23, + 'nbHits': 1, + 'hitsPerPage': 20, + 'exhaustiveNbHits': True, + 'params': 'query=xxx', + 'nbPages': 1, + 'query': 'xxx', + 'page': 0 + } + + # Algolia search is a non free SaaS application, it isn't possible to add it to the + # docker environment to enable a full-fledged integration test. The next best option + # is to mock out the search method to prevent it from making server requests + if algoliasearch_version < (2, 0) and algoliasearch_version >= (1, 0): + import algoliasearch + import algoliasearch.index as index_module + index_module.Index.search = search + client = algoliasearch.algoliasearch.Client('X', 'X') + else: + import algoliasearch.search_index as index_module + from algoliasearch.search_client import SearchClient + index_module.SearchIndex.search = search + client = SearchClient.create('X', 'X') + + # use this index only to properly test stuff + self.index = client.init_index('test_index') + + def patch_algoliasearch(self): + patch() + Pin.override(self.index, tracer=self.tracer) + + def tearDown(self): + super(AlgoliasearchTest, self).tearDown() + unpatch() + if hasattr(self, 'tracer'): + self.reset() + + def perform_search(self, query_text, query_args=None): + if algoliasearch_version < (2, 0) and algoliasearch_version >= (1, 0): + self.index.search(query_text, args=query_args) + else: + self.index.search(query_text, request_options=query_args) + + def test_algoliasearch(self): + self.patch_algoliasearch() + self.perform_search( + 'test search', + {'attributesToRetrieve': 'firstname,lastname', 'unsupportedTotallyNewArgument': 'ignore'} + ) + + spans = self.get_spans() + self.reset() + + assert len(spans) == 1 + span = spans[0] + assert span.service == 'algoliasearch' + assert span.name == 'algoliasearch.search' + assert span.span_type is None + assert span.error == 0 + assert span.get_tag('query.args.attributes_to_retrieve') == 'firstname,lastname' + # Verify that adding new arguments to the search API will simply be ignored and not cause + # errors + assert span.get_tag('query.args.unsupported_totally_new_argument') is None + assert span.get_metric('processing_time_ms') == 23 + assert span.get_metric('number_of_hits') == 1 + + # Verify query_text, which may contain sensitive data, is not passed along + # unless the config value is appropriately set + assert span.get_tag('query.text') is None + + def test_algoliasearch_with_query_text(self): + self.patch_algoliasearch() + config.algoliasearch.collect_query_text = True + + self.perform_search( + 'test search', + {'attributesToRetrieve': 'firstname,lastname', 'unsupportedTotallyNewArgument': 'ignore'} + ) + spans = self.get_spans() + span = spans[0] + assert span.get_tag('query.text') == 'test search' + + def test_patch_unpatch(self): + self.patch_algoliasearch() + # Test patch idempotence + patch() + patch() + + self.perform_search('test search') + + spans = self.get_spans() + self.reset() + assert spans, spans + assert len(spans) == 1 + + # Test unpatch + unpatch() + + self.index.search('test search') + + spans = self.get_spans() + self.reset() + assert not spans, spans + + # Test patch again + self.reset() + patch() + + self.index.search('test search') + + spans = self.get_spans() + assert spans, spans + assert len(spans) == 1 + + def test_patch_all_auto_enable(self): + patch_all() + Pin.override(self.index, tracer=self.tracer) + self.perform_search('test search') + + spans = self.get_spans() + self.reset() + assert spans, spans + assert len(spans) == 1 + + unpatch() + + self.perform_search('test search') + + spans = self.get_spans() + assert not spans, spans diff --git a/tests/contrib/asyncio/__init__.py b/tests/contrib/asyncio/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/asyncio/test_helpers.py b/tests/contrib/asyncio/test_helpers.py new file mode 100644 index 0000000000..2fc6eb7c04 --- /dev/null +++ b/tests/contrib/asyncio/test_helpers.py @@ -0,0 +1,91 @@ +import asyncio +import pytest + +from ddtrace.context import Context +from ddtrace.internal.context_manager import CONTEXTVARS_IS_AVAILABLE +from ddtrace.contrib.asyncio import helpers +from .utils import AsyncioTestCase, mark_asyncio + + +@pytest.mark.skipif( + CONTEXTVARS_IS_AVAILABLE, + reason='only applicable to legacy asyncio integration' +) +class TestAsyncioHelpers(AsyncioTestCase): + """ + Ensure that helpers set the ``Context`` properly when creating + new ``Task`` or threads. + """ + @mark_asyncio + def test_set_call_context(self): + # a different Context is set for the current logical execution + task = asyncio.Task.current_task() + ctx = Context() + helpers.set_call_context(task, ctx) + assert ctx == self.tracer.get_call_context() + + @mark_asyncio + def test_ensure_future(self): + # the wrapper should create a new Future that has the Context attached + @asyncio.coroutine + def future_work(): + # the ctx is available in this task + ctx = self.tracer.get_call_context() + assert 1 == len(ctx._trace) + assert 'coroutine' == ctx._trace[0].name + return ctx._trace[0].name + + self.tracer.trace('coroutine') + # schedule future work and wait for a result + delayed_task = helpers.ensure_future(future_work(), tracer=self.tracer) + result = yield from asyncio.wait_for(delayed_task, timeout=1) + assert 'coroutine' == result + + @mark_asyncio + def test_run_in_executor_proxy(self): + # the wrapper should pass arguments and results properly + def future_work(number, name): + assert 42 == number + assert 'john' == name + return True + + future = helpers.run_in_executor(self.loop, None, future_work, 42, 'john', tracer=self.tracer) + result = yield from future + assert result + + @mark_asyncio + def test_run_in_executor_traces(self): + # the wrapper should create a different Context when the Thread + # is started; the new Context creates a new trace + def future_work(): + # the Context is empty but the reference to the latest + # span is here to keep the parenting + ctx = self.tracer.get_call_context() + assert 0 == len(ctx._trace) + assert 'coroutine' == ctx._current_span.name + return True + + span = self.tracer.trace('coroutine') + future = helpers.run_in_executor(self.loop, None, future_work, tracer=self.tracer) + # we close the Context + span.finish() + result = yield from future + assert result + + @mark_asyncio + def test_create_task(self): + # the helper should create a new Task that has the Context attached + @asyncio.coroutine + def future_work(): + # the ctx is available in this task + ctx = self.tracer.get_call_context() + assert 0 == len(ctx._trace) + child_span = self.tracer.trace('child_task') + return child_span + + root_span = self.tracer.trace('main_task') + # schedule future work and wait for a result + task = helpers.create_task(future_work()) + result = yield from task + assert root_span.trace_id == result.trace_id + assert root_span.span_id == result.parent_id diff --git a/tests/contrib/asyncio/test_tracer.py b/tests/contrib/asyncio/test_tracer.py new file mode 100644 index 0000000000..9d84783243 --- /dev/null +++ b/tests/contrib/asyncio/test_tracer.py @@ -0,0 +1,392 @@ +import asyncio +import pytest +import time + + +from ddtrace.context import Context +from ddtrace.internal.context_manager import CONTEXTVARS_IS_AVAILABLE +from ddtrace.provider import DefaultContextProvider +from ddtrace.contrib.asyncio.patch import patch, unpatch +from ddtrace.contrib.asyncio.helpers import set_call_context + +from tests.opentracer.utils import init_tracer +from .utils import AsyncioTestCase, mark_asyncio + + +_orig_create_task = asyncio.BaseEventLoop.create_task + + +class TestAsyncioTracer(AsyncioTestCase): + """Ensure that the tracer works with asynchronous executions within + the same ``IOLoop``. + """ + @mark_asyncio + @pytest.mark.skipif( + CONTEXTVARS_IS_AVAILABLE, + reason='only applicable to legacy asyncio provider' + ) + def test_get_call_context(self): + # it should return the context attached to the current Task + # or create a new one + task = asyncio.Task.current_task() + ctx = getattr(task, '__datadog_context', None) + assert ctx is None + # get the context from the loop creates a new one that + # is attached to the Task object + ctx = self.tracer.get_call_context() + assert ctx == getattr(task, '__datadog_context', None) + + @mark_asyncio + def test_get_call_context_twice(self): + # it should return the same Context if called twice + assert self.tracer.get_call_context() == self.tracer.get_call_context() + + @mark_asyncio + def test_trace_coroutine(self): + # it should use the task context when invoked in a coroutine + with self.tracer.trace('coroutine') as span: + span.resource = 'base' + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + assert 'coroutine' == traces[0][0].name + assert 'base' == traces[0][0].resource + + @mark_asyncio + def test_trace_multiple_coroutines(self): + # if multiple coroutines have nested tracing, they must belong + # to the same trace + @asyncio.coroutine + def coro(): + # another traced coroutine + with self.tracer.trace('coroutine_2'): + return 42 + + with self.tracer.trace('coroutine_1'): + value = yield from coro() + + # the coroutine has been called correctly + assert 42 == value + # a single trace has been properly reported + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 2 == len(traces[0]) + assert 'coroutine_1' == traces[0][0].name + assert 'coroutine_2' == traces[0][1].name + # the parenting is correct + assert traces[0][0] == traces[0][1]._parent + assert traces[0][0].trace_id == traces[0][1].trace_id + + @mark_asyncio + def test_event_loop_exception(self): + # it should handle a loop exception + asyncio.set_event_loop(None) + ctx = self.tracer.get_call_context() + assert ctx is not None + + def test_context_task_none(self): + # it should handle the case where a Task is not available + # Note: the @mark_asyncio is missing to simulate an execution + # without a Task + task = asyncio.Task.current_task() + # the task is not available + assert task is None + # but a new Context is still created making the operation safe + ctx = self.tracer.get_call_context() + assert ctx is not None + + @mark_asyncio + def test_exception(self): + @asyncio.coroutine + def f1(): + with self.tracer.trace('f1'): + raise Exception('f1 error') + + with self.assertRaises(Exception): + yield from f1() + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + spans = traces[0] + assert 1 == len(spans) + span = spans[0] + assert 1 == span.error + assert 'f1 error' == span.get_tag('error.msg') + assert 'Exception: f1 error' in span.get_tag('error.stack') + + @mark_asyncio + def test_nested_exceptions(self): + @asyncio.coroutine + def f1(): + with self.tracer.trace('f1'): + raise Exception('f1 error') + + @asyncio.coroutine + def f2(): + with self.tracer.trace('f2'): + yield from f1() + + with self.assertRaises(Exception): + yield from f2() + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + spans = traces[0] + assert 2 == len(spans) + span = spans[0] + assert 'f2' == span.name + assert 1 == span.error # f2 did not catch the exception + assert 'f1 error' == span.get_tag('error.msg') + assert 'Exception: f1 error' in span.get_tag('error.stack') + span = spans[1] + assert 'f1' == span.name + assert 1 == span.error + assert 'f1 error' == span.get_tag('error.msg') + assert 'Exception: f1 error' in span.get_tag('error.stack') + + @mark_asyncio + def test_handled_nested_exceptions(self): + @asyncio.coroutine + def f1(): + with self.tracer.trace('f1'): + raise Exception('f1 error') + + @asyncio.coroutine + def f2(): + with self.tracer.trace('f2'): + try: + yield from f1() + except Exception: + pass + + yield from f2() + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + spans = traces[0] + assert 2 == len(spans) + span = spans[0] + assert 'f2' == span.name + assert 0 == span.error # f2 caught the exception + span = spans[1] + assert 'f1' == span.name + assert 1 == span.error + assert 'f1 error' == span.get_tag('error.msg') + assert 'Exception: f1 error' in span.get_tag('error.stack') + + @mark_asyncio + def test_trace_multiple_calls(self): + # create multiple futures so that we expect multiple + # traces instead of a single one (helper not used) + @asyncio.coroutine + def coro(): + # another traced coroutine + with self.tracer.trace('coroutine'): + yield from asyncio.sleep(0.01) + + futures = [asyncio.ensure_future(coro()) for x in range(10)] + for future in futures: + yield from future + + traces = self.tracer.writer.pop_traces() + assert 10 == len(traces) + assert 1 == len(traces[0]) + assert 'coroutine' == traces[0][0].name + + @mark_asyncio + def test_wrapped_coroutine(self): + @self.tracer.wrap('f1') + @asyncio.coroutine + def f1(): + yield from asyncio.sleep(0.25) + + yield from f1() + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + spans = traces[0] + assert 1 == len(spans) + span = spans[0] + assert span.duration > 0.25, 'span.duration={}'.format(span.duration) + + +class TestAsyncioPropagation(AsyncioTestCase): + """Ensure that asyncio context propagation works between different tasks""" + def setUp(self): + # patch asyncio event loop + super(TestAsyncioPropagation, self).setUp() + patch() + + def tearDown(self): + # unpatch asyncio event loop + super(TestAsyncioPropagation, self).tearDown() + unpatch() + + @mark_asyncio + def test_tasks_chaining(self): + # ensures that the context is propagated between different tasks + @self.tracer.wrap('spawn_task') + @asyncio.coroutine + def coro_2(): + yield from asyncio.sleep(0.01) + + @self.tracer.wrap('main_task') + @asyncio.coroutine + def coro_1(): + yield from asyncio.ensure_future(coro_2()) + + yield from coro_1() + + traces = self.tracer.writer.pop_traces() + assert len(traces) == 2 + assert len(traces[0]) == 1 + assert len(traces[1]) == 1 + spawn_task = traces[0][0] + main_task = traces[1][0] + # check if the context has been correctly propagated + assert spawn_task.trace_id == main_task.trace_id + assert spawn_task.parent_id == main_task.span_id + + @mark_asyncio + def test_concurrent_chaining(self): + # ensures that the context is correctly propagated when + # concurrent tasks are created from a common tracing block + @self.tracer.wrap('f1') + @asyncio.coroutine + def f1(): + yield from asyncio.sleep(0.01) + + @self.tracer.wrap('f2') + @asyncio.coroutine + def f2(): + yield from asyncio.sleep(0.01) + + with self.tracer.trace('main_task'): + yield from asyncio.gather(f1(), f2()) + # do additional synchronous work to confirm main context is + # correctly handled + with self.tracer.trace('main_task_child'): + time.sleep(0.01) + + traces = self.tracer.writer.pop_traces() + assert len(traces) == 3 + assert len(traces[0]) == 1 + assert len(traces[1]) == 1 + assert len(traces[2]) == 2 + child_1 = traces[0][0] + child_2 = traces[1][0] + main_task = traces[2][0] + main_task_child = traces[2][1] + # check if the context has been correctly propagated + assert child_1.trace_id == main_task.trace_id + assert child_1.parent_id == main_task.span_id + assert child_2.trace_id == main_task.trace_id + assert child_2.parent_id == main_task.span_id + assert main_task_child.trace_id == main_task.trace_id + assert main_task_child.parent_id == main_task.span_id + + @pytest.mark.skipif( + CONTEXTVARS_IS_AVAILABLE, + reason='only applicable to legacy asyncio provider' + ) + @mark_asyncio + def test_propagation_with_set_call_context(self): + # ensures that if a new Context is attached to the current + # running Task via helpers, a previous trace is resumed + task = asyncio.Task.current_task() + ctx = Context(trace_id=100, span_id=101) + set_call_context(task, ctx) + + with self.tracer.trace('async_task'): + yield from asyncio.sleep(0.01) + + traces = self.tracer.writer.pop_traces() + assert len(traces) == 1 + assert len(traces[0]) == 1 + span = traces[0][0] + assert span.trace_id == 100 + assert span.parent_id == 101 + + @mark_asyncio + def test_propagation_with_new_context(self): + # ensures that if a new Context is activated, a trace + # with the Context arguments is created + ctx = Context(trace_id=100, span_id=101) + self.tracer.context_provider.activate(ctx) + + with self.tracer.trace('async_task'): + yield from asyncio.sleep(0.01) + + traces = self.tracer.writer.pop_traces() + assert len(traces) == 1 + assert len(traces[0]) == 1 + span = traces[0][0] + assert span.trace_id == 100 + assert span.parent_id == 101 + + @mark_asyncio + def test_event_loop_unpatch(self): + # ensures that the event loop can be unpatched + unpatch() + assert isinstance(self.tracer._context_provider, DefaultContextProvider) + assert asyncio.BaseEventLoop.create_task == _orig_create_task + + def test_event_loop_double_patch(self): + # ensures that double patching will not double instrument + # the event loop + patch() + self.test_tasks_chaining() + + @mark_asyncio + def test_trace_multiple_coroutines_ot_outer(self): + """OpenTracing version of test_trace_multiple_coroutines.""" + # if multiple coroutines have nested tracing, they must belong + # to the same trace + @asyncio.coroutine + def coro(): + # another traced coroutine + with self.tracer.trace('coroutine_2'): + return 42 + + ot_tracer = init_tracer('asyncio_svc', self.tracer) + with ot_tracer.start_active_span('coroutine_1'): + value = yield from coro() + + # the coroutine has been called correctly + assert 42 == value + # a single trace has been properly reported + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 2 == len(traces[0]) + assert 'coroutine_1' == traces[0][0].name + assert 'coroutine_2' == traces[0][1].name + # the parenting is correct + assert traces[0][0] == traces[0][1]._parent + assert traces[0][0].trace_id == traces[0][1].trace_id + + @mark_asyncio + def test_trace_multiple_coroutines_ot_inner(self): + """OpenTracing version of test_trace_multiple_coroutines.""" + # if multiple coroutines have nested tracing, they must belong + # to the same trace + ot_tracer = init_tracer('asyncio_svc', self.tracer) + @asyncio.coroutine + def coro(): + # another traced coroutine + with ot_tracer.start_active_span('coroutine_2'): + return 42 + + with self.tracer.trace('coroutine_1'): + value = yield from coro() + + # the coroutine has been called correctly + assert 42 == value + # a single trace has been properly reported + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 2 == len(traces[0]) + assert 'coroutine_1' == traces[0][0].name + assert 'coroutine_2' == traces[0][1].name + # the parenting is correct + assert traces[0][0] == traces[0][1]._parent + assert traces[0][0].trace_id == traces[0][1].trace_id diff --git a/tests/contrib/asyncio/test_tracer_safety.py b/tests/contrib/asyncio/test_tracer_safety.py new file mode 100644 index 0000000000..54acebdffe --- /dev/null +++ b/tests/contrib/asyncio/test_tracer_safety.py @@ -0,0 +1,57 @@ +import asyncio + +from ddtrace.provider import DefaultContextProvider +from .utils import AsyncioTestCase, mark_asyncio + + +class TestAsyncioSafety(AsyncioTestCase): + """ + Ensure that if the ``AsyncioTracer`` is not properly configured, + bad traces are produced but the ``Context`` object will not + leak memory. + """ + def setUp(self): + # Asyncio TestCase with the wrong context provider + super(TestAsyncioSafety, self).setUp() + self.tracer.configure(context_provider=DefaultContextProvider()) + + @mark_asyncio + def test_get_call_context(self): + # it should return a context even if not attached to the Task + ctx = self.tracer.get_call_context() + assert ctx is not None + # test that it behaves the wrong way + task = asyncio.Task.current_task() + task_ctx = getattr(task, '__datadog_context', None) + assert task_ctx is None + + @mark_asyncio + def test_trace_coroutine(self): + # it should use the task context when invoked in a coroutine + with self.tracer.trace('coroutine') as span: + span.resource = 'base' + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + assert 'coroutine' == traces[0][0].name + assert 'base' == traces[0][0].resource + + @mark_asyncio + def test_trace_multiple_calls(self): + @asyncio.coroutine + def coro(): + # another traced coroutine + with self.tracer.trace('coroutine'): + yield from asyncio.sleep(0.01) + + ctx = self.tracer.get_call_context() + futures = [asyncio.ensure_future(coro()) for x in range(1000)] + for future in futures: + yield from future + + # the trace is wrong but the Context is finished + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1000 == len(traces[0]) + assert 0 == len(ctx._trace) diff --git a/tests/contrib/asyncio/utils.py b/tests/contrib/asyncio/utils.py new file mode 100644 index 0000000000..3ffe81aa64 --- /dev/null +++ b/tests/contrib/asyncio/utils.py @@ -0,0 +1,48 @@ +import asyncio + +from functools import wraps + +from ddtrace.contrib.asyncio import context_provider + +from ...base import BaseTracerTestCase + + +class AsyncioTestCase(BaseTracerTestCase): + """ + Base TestCase for asyncio framework that setup a new loop + for each test, preserving the original (not started) main + loop. + """ + def setUp(self): + super(AsyncioTestCase, self).setUp() + + self.tracer.configure(context_provider=context_provider) + + # each test must have its own event loop + self._main_loop = asyncio.get_event_loop() + self.loop = asyncio.new_event_loop() + asyncio.set_event_loop(self.loop) + + def tearDown(self): + super(AsyncioTestCase, self).tearDown() + + # restore the main loop + asyncio.set_event_loop(self._main_loop) + self.loop = None + self._main_loop = None + + +def mark_asyncio(f): + """ + Test decorator that wraps a function so that it can be executed + as an asynchronous coroutine. This uses the event loop set in the + ``TestCase`` class, and runs the loop until it's completed. + """ + @wraps(f) + def wrapper(*args, **kwargs): + coro = asyncio.coroutine(f) + future = coro(*args, **kwargs) + loop = asyncio.get_event_loop() + loop.run_until_complete(future) + loop.close() + return wrapper diff --git a/tests/contrib/boto/__init__.py b/tests/contrib/boto/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/boto/test.py b/tests/contrib/boto/test.py new file mode 100644 index 0000000000..d785a5021a --- /dev/null +++ b/tests/contrib/boto/test.py @@ -0,0 +1,310 @@ +# 3p +import boto.ec2 +import boto.s3 +import boto.awslambda +import boto.sqs +import boto.kms +import boto.sts +import boto.elasticache +from moto import mock_s3, mock_ec2, mock_lambda, mock_sts + +# project +from ddtrace import Pin +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.contrib.boto.patch import patch, unpatch +from ddtrace.ext import http + +# testing +from unittest import skipUnless +from tests.opentracer.utils import init_tracer +from ...base import BaseTracerTestCase +from ...utils import assert_span_http_status_code + + +class BotoTest(BaseTracerTestCase): + """Botocore integration testsuite""" + + TEST_SERVICE = 'test-boto-tracing' + + def setUp(self): + super(BotoTest, self).setUp() + patch() + + @mock_ec2 + def test_ec2_client(self): + ec2 = boto.ec2.connect_to_region('us-west-2') + writer = self.tracer.writer + Pin(service=self.TEST_SERVICE, tracer=self.tracer).onto(ec2) + + ec2.get_all_instances() + spans = writer.pop() + assert spans + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.get_tag('aws.operation'), 'DescribeInstances') + assert_span_http_status_code(span, 200) + self.assertEqual(span.get_tag(http.METHOD), 'POST') + self.assertEqual(span.get_tag('aws.region'), 'us-west-2') + self.assertIsNone(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + # Create an instance + ec2.run_instances(21) + spans = writer.pop() + assert spans + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.get_tag('aws.operation'), 'RunInstances') + assert_span_http_status_code(span, 200) + self.assertEqual(span.get_tag(http.METHOD), 'POST') + self.assertEqual(span.get_tag('aws.region'), 'us-west-2') + self.assertEqual(span.service, 'test-boto-tracing.ec2') + self.assertEqual(span.resource, 'ec2.runinstances') + self.assertEqual(span.name, 'ec2.command') + self.assertEqual(span.span_type, 'http') + + @mock_ec2 + def test_analytics_enabled_with_rate(self): + with self.override_config( + 'boto', + dict(analytics_enabled=True, analytics_sample_rate=0.5) + ): + ec2 = boto.ec2.connect_to_region('us-west-2') + writer = self.tracer.writer + Pin(service=self.TEST_SERVICE, tracer=self.tracer).onto(ec2) + + ec2.get_all_instances() + + spans = writer.pop() + assert spans + span = spans[0] + self.assertEqual(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY), 0.5) + + @mock_ec2 + def test_analytics_enabled_without_rate(self): + with self.override_config( + 'boto', + dict(analytics_enabled=True) + ): + ec2 = boto.ec2.connect_to_region('us-west-2') + writer = self.tracer.writer + Pin(service=self.TEST_SERVICE, tracer=self.tracer).onto(ec2) + + ec2.get_all_instances() + + spans = writer.pop() + assert spans + span = spans[0] + self.assertEqual(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY), 1.0) + + @mock_s3 + def test_s3_client(self): + s3 = boto.s3.connect_to_region('us-east-1') + + writer = self.tracer.writer + Pin(service=self.TEST_SERVICE, tracer=self.tracer).onto(s3) + + s3.get_all_buckets() + spans = writer.pop() + assert spans + self.assertEqual(len(spans), 1) + span = spans[0] + assert_span_http_status_code(span, 200) + self.assertEqual(span.get_tag(http.METHOD), 'GET') + self.assertEqual(span.get_tag('aws.operation'), 'get_all_buckets') + + # Create a bucket command + s3.create_bucket('cheese') + spans = writer.pop() + assert spans + self.assertEqual(len(spans), 1) + span = spans[0] + assert_span_http_status_code(span, 200) + self.assertEqual(span.get_tag(http.METHOD), 'PUT') + self.assertEqual(span.get_tag('path'), '/') + self.assertEqual(span.get_tag('aws.operation'), 'create_bucket') + + # Get the created bucket + s3.get_bucket('cheese') + spans = writer.pop() + assert spans + self.assertEqual(len(spans), 1) + span = spans[0] + assert_span_http_status_code(span, 200) + self.assertEqual(span.get_tag(http.METHOD), 'HEAD') + self.assertEqual(span.get_tag('aws.operation'), 'head_bucket') + self.assertEqual(span.service, 'test-boto-tracing.s3') + self.assertEqual(span.resource, 's3.head') + self.assertEqual(span.name, 's3.command') + + # Checking for resource incase of error + try: + s3.get_bucket('big_bucket') + except Exception: + spans = writer.pop() + assert spans + span = spans[0] + self.assertEqual(span.resource, 's3.head') + + @mock_s3 + def test_s3_put(self): + s3 = boto.s3.connect_to_region('us-east-1') + + writer = self.tracer.writer + Pin(service=self.TEST_SERVICE, tracer=self.tracer).onto(s3) + s3.create_bucket('mybucket') + bucket = s3.get_bucket('mybucket') + k = boto.s3.key.Key(bucket) + k.key = 'foo' + k.set_contents_from_string('bar') + + spans = writer.pop() + assert spans + # create bucket + self.assertEqual(len(spans), 3) + self.assertEqual(spans[0].get_tag('aws.operation'), 'create_bucket') + assert_span_http_status_code(spans[0], 200) + self.assertEqual(spans[0].service, 'test-boto-tracing.s3') + self.assertEqual(spans[0].resource, 's3.put') + # get bucket + self.assertEqual(spans[1].get_tag('aws.operation'), 'head_bucket') + self.assertEqual(spans[1].resource, 's3.head') + # put object + self.assertEqual(spans[2].get_tag('aws.operation'), '_send_file_internal') + self.assertEqual(spans[2].resource, 's3.put') + + @mock_lambda + def test_unpatch(self): + lamb = boto.awslambda.connect_to_region('us-east-2') + + writer = self.tracer.writer + Pin(service=self.TEST_SERVICE, tracer=self.tracer).onto(lamb) + unpatch() + + # multiple calls + lamb.list_functions() + spans = writer.pop() + assert not spans, spans + + @mock_s3 + def test_double_patch(self): + s3 = boto.s3.connect_to_region('us-east-1') + + writer = self.tracer.writer + Pin(service=self.TEST_SERVICE, tracer=self.tracer).onto(s3) + + patch() + patch() + + # Get the created bucket + s3.create_bucket('cheese') + spans = writer.pop() + assert spans + self.assertEqual(len(spans), 1) + + @mock_lambda + def test_lambda_client(self): + lamb = boto.awslambda.connect_to_region('us-east-2') + + writer = self.tracer.writer + Pin(service=self.TEST_SERVICE, tracer=self.tracer).onto(lamb) + + # multiple calls + lamb.list_functions() + lamb.list_functions() + + spans = writer.pop() + assert spans + self.assertEqual(len(spans), 2) + span = spans[0] + assert_span_http_status_code(span, 200) + self.assertEqual(span.get_tag(http.METHOD), 'GET') + self.assertEqual(span.get_tag('aws.region'), 'us-east-2') + self.assertEqual(span.get_tag('aws.operation'), 'list_functions') + self.assertEqual(span.service, 'test-boto-tracing.lambda') + self.assertEqual(span.resource, 'lambda.get') + + @mock_sts + def test_sts_client(self): + sts = boto.sts.connect_to_region('us-west-2') + + writer = self.tracer.writer + Pin(service=self.TEST_SERVICE, tracer=self.tracer).onto(sts) + + sts.get_federation_token(12, duration=10) + + spans = writer.pop() + assert spans + span = spans[0] + self.assertEqual(span.get_tag('aws.region'), 'us-west-2') + self.assertEqual(span.get_tag('aws.operation'), 'GetFederationToken') + self.assertEqual(span.service, 'test-boto-tracing.sts') + self.assertEqual(span.resource, 'sts.getfederationtoken') + + # checking for protection on sts against security leak + self.assertIsNone(span.get_tag('args.path')) + + @skipUnless( + False, + ('Test to reproduce the case where args sent to patched function are None,' + 'can\'t be mocked: needs AWS crendentials'), + ) + def test_elasticache_client(self): + elasticache = boto.elasticache.connect_to_region('us-west-2') + + writer = self.tracer.writer + Pin(service=self.TEST_SERVICE, tracer=self.tracer).onto(elasticache) + + elasticache.describe_cache_clusters() + + spans = writer.pop() + assert spans + span = spans[0] + self.assertEqual(span.get_tag('aws.region'), 'us-west-2') + self.assertEqual(span.service, 'test-boto-tracing.elasticache') + self.assertEqual(span.resource, 'elasticache') + + @mock_ec2 + def test_ec2_client_ot(self): + """OpenTracing compatibility check of the test_ec2_client test.""" + + ec2 = boto.ec2.connect_to_region('us-west-2') + + ot_tracer = init_tracer('my_svc', self.tracer) + writer = self.tracer.writer + Pin(service=self.TEST_SERVICE, tracer=self.tracer).onto(ec2) + + with ot_tracer.start_active_span('ot_span'): + ec2.get_all_instances() + spans = writer.pop() + assert spans + self.assertEqual(len(spans), 2) + ot_span, dd_span = spans + + # confirm the parenting + self.assertIsNone(ot_span.parent_id) + self.assertEqual(dd_span.parent_id, ot_span.span_id) + + self.assertEqual(ot_span.resource, 'ot_span') + self.assertEqual(dd_span.get_tag('aws.operation'), 'DescribeInstances') + assert_span_http_status_code(dd_span, 200) + self.assertEqual(dd_span.get_tag(http.METHOD), 'POST') + self.assertEqual(dd_span.get_tag('aws.region'), 'us-west-2') + + with ot_tracer.start_active_span('ot_span'): + ec2.run_instances(21) + spans = writer.pop() + assert spans + self.assertEqual(len(spans), 2) + ot_span, dd_span = spans + + # confirm the parenting + self.assertIsNone(ot_span.parent_id) + self.assertEqual(dd_span.parent_id, ot_span.span_id) + + self.assertEqual(dd_span.get_tag('aws.operation'), 'RunInstances') + assert_span_http_status_code(dd_span, 200) + self.assertEqual(dd_span.get_tag(http.METHOD), 'POST') + self.assertEqual(dd_span.get_tag('aws.region'), 'us-west-2') + self.assertEqual(dd_span.service, 'test-boto-tracing.ec2') + self.assertEqual(dd_span.resource, 'ec2.runinstances') + self.assertEqual(dd_span.name, 'ec2.command') diff --git a/tests/contrib/botocore/__init__.py b/tests/contrib/botocore/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/botocore/test.py b/tests/contrib/botocore/test.py new file mode 100644 index 0000000000..e99aa8ce8b --- /dev/null +++ b/tests/contrib/botocore/test.py @@ -0,0 +1,249 @@ +# 3p +import botocore.session +from moto import mock_s3, mock_ec2, mock_lambda, mock_sqs, mock_kinesis, mock_kms + +# project +from ddtrace import Pin +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.contrib.botocore.patch import patch, unpatch +from ddtrace.compat import stringify + +# testing +from tests.opentracer.utils import init_tracer +from ...base import BaseTracerTestCase +from ...utils import assert_span_http_status_code + + +class BotocoreTest(BaseTracerTestCase): + """Botocore integration testsuite""" + + TEST_SERVICE = 'test-botocore-tracing' + + def setUp(self): + patch() + + self.session = botocore.session.get_session() + self.session.set_credentials(access_key='access-key', secret_key='secret-key') + + super(BotocoreTest, self).setUp() + + def tearDown(self): + super(BotocoreTest, self).tearDown() + + unpatch() + + @mock_ec2 + def test_traced_client(self): + ec2 = self.session.create_client('ec2', region_name='us-west-2') + Pin(service=self.TEST_SERVICE, tracer=self.tracer).onto(ec2) + + ec2.describe_instances() + + spans = self.get_spans() + assert spans + span = spans[0] + self.assertEqual(len(spans), 1) + self.assertEqual(span.get_tag('aws.agent'), 'botocore') + self.assertEqual(span.get_tag('aws.region'), 'us-west-2') + self.assertEqual(span.get_tag('aws.operation'), 'DescribeInstances') + assert_span_http_status_code(span, 200) + self.assertEqual(span.get_metric('retry_attempts'), 0) + self.assertEqual(span.service, 'test-botocore-tracing.ec2') + self.assertEqual(span.resource, 'ec2.describeinstances') + self.assertEqual(span.name, 'ec2.command') + self.assertEqual(span.span_type, 'http') + self.assertIsNone(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + @mock_ec2 + def test_traced_client_analytics(self): + with self.override_config( + 'botocore', + dict(analytics_enabled=True, analytics_sample_rate=0.5) + ): + ec2 = self.session.create_client('ec2', region_name='us-west-2') + Pin(service=self.TEST_SERVICE, tracer=self.tracer).onto(ec2) + ec2.describe_instances() + + spans = self.get_spans() + assert spans + span = spans[0] + self.assertEqual(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY), 0.5) + + @mock_s3 + def test_s3_client(self): + s3 = self.session.create_client('s3', region_name='us-west-2') + Pin(service=self.TEST_SERVICE, tracer=self.tracer).onto(s3) + + s3.list_buckets() + s3.list_buckets() + + spans = self.get_spans() + assert spans + span = spans[0] + self.assertEqual(len(spans), 2) + self.assertEqual(span.get_tag('aws.operation'), 'ListBuckets') + assert_span_http_status_code(span, 200) + self.assertEqual(span.service, 'test-botocore-tracing.s3') + self.assertEqual(span.resource, 's3.listbuckets') + + # testing for span error + self.reset() + try: + s3.list_objects(bucket='mybucket') + except Exception: + spans = self.get_spans() + assert spans + span = spans[0] + self.assertEqual(span.error, 1) + self.assertEqual(span.resource, 's3.listobjects') + + @mock_s3 + def test_s3_put(self): + params = dict(Key='foo', Bucket='mybucket', Body=b'bar') + s3 = self.session.create_client('s3', region_name='us-west-2') + Pin(service=self.TEST_SERVICE, tracer=self.tracer).onto(s3) + s3.create_bucket(Bucket='mybucket') + s3.put_object(**params) + + spans = self.get_spans() + assert spans + span = spans[0] + self.assertEqual(len(spans), 2) + self.assertEqual(span.get_tag('aws.operation'), 'CreateBucket') + assert_span_http_status_code(span, 200) + self.assertEqual(span.service, 'test-botocore-tracing.s3') + self.assertEqual(span.resource, 's3.createbucket') + self.assertEqual(spans[1].get_tag('aws.operation'), 'PutObject') + self.assertEqual(spans[1].resource, 's3.putobject') + self.assertEqual(spans[1].get_tag('params.Key'), stringify(params['Key'])) + self.assertEqual(spans[1].get_tag('params.Bucket'), stringify(params['Bucket'])) + # confirm blacklisted + self.assertIsNone(spans[1].get_tag('params.Body')) + + @mock_sqs + def test_sqs_client(self): + sqs = self.session.create_client('sqs', region_name='us-east-1') + Pin(service=self.TEST_SERVICE, tracer=self.tracer).onto(sqs) + + sqs.list_queues() + + spans = self.get_spans() + assert spans + span = spans[0] + self.assertEqual(len(spans), 1) + self.assertEqual(span.get_tag('aws.region'), 'us-east-1') + self.assertEqual(span.get_tag('aws.operation'), 'ListQueues') + assert_span_http_status_code(span, 200) + self.assertEqual(span.service, 'test-botocore-tracing.sqs') + self.assertEqual(span.resource, 'sqs.listqueues') + + @mock_kinesis + def test_kinesis_client(self): + kinesis = self.session.create_client('kinesis', region_name='us-east-1') + Pin(service=self.TEST_SERVICE, tracer=self.tracer).onto(kinesis) + + kinesis.list_streams() + + spans = self.get_spans() + assert spans + span = spans[0] + self.assertEqual(len(spans), 1) + self.assertEqual(span.get_tag('aws.region'), 'us-east-1') + self.assertEqual(span.get_tag('aws.operation'), 'ListStreams') + assert_span_http_status_code(span, 200) + self.assertEqual(span.service, 'test-botocore-tracing.kinesis') + self.assertEqual(span.resource, 'kinesis.liststreams') + + @mock_kinesis + def test_unpatch(self): + kinesis = self.session.create_client('kinesis', region_name='us-east-1') + Pin(service=self.TEST_SERVICE, tracer=self.tracer).onto(kinesis) + + unpatch() + + kinesis.list_streams() + spans = self.get_spans() + assert not spans, spans + + @mock_sqs + def test_double_patch(self): + sqs = self.session.create_client('sqs', region_name='us-east-1') + Pin(service=self.TEST_SERVICE, tracer=self.tracer).onto(sqs) + + patch() + patch() + + sqs.list_queues() + + spans = self.get_spans() + assert spans + self.assertEqual(len(spans), 1) + + @mock_lambda + def test_lambda_client(self): + lamb = self.session.create_client('lambda', region_name='us-east-1') + Pin(service=self.TEST_SERVICE, tracer=self.tracer).onto(lamb) + + lamb.list_functions() + + spans = self.get_spans() + assert spans + span = spans[0] + self.assertEqual(len(spans), 1) + self.assertEqual(span.get_tag('aws.region'), 'us-east-1') + self.assertEqual(span.get_tag('aws.operation'), 'ListFunctions') + assert_span_http_status_code(span, 200) + self.assertEqual(span.service, 'test-botocore-tracing.lambda') + self.assertEqual(span.resource, 'lambda.listfunctions') + + @mock_kms + def test_kms_client(self): + kms = self.session.create_client('kms', region_name='us-east-1') + Pin(service=self.TEST_SERVICE, tracer=self.tracer).onto(kms) + + kms.list_keys(Limit=21) + + spans = self.get_spans() + assert spans + span = spans[0] + self.assertEqual(len(spans), 1) + self.assertEqual(span.get_tag('aws.region'), 'us-east-1') + self.assertEqual(span.get_tag('aws.operation'), 'ListKeys') + assert_span_http_status_code(span, 200) + self.assertEqual(span.service, 'test-botocore-tracing.kms') + self.assertEqual(span.resource, 'kms.listkeys') + + # checking for protection on sts against security leak + self.assertIsNone(span.get_tag('params')) + + @mock_ec2 + def test_traced_client_ot(self): + """OpenTracing version of test_traced_client.""" + ot_tracer = init_tracer('ec2_svc', self.tracer) + + with ot_tracer.start_active_span('ec2_op'): + ec2 = self.session.create_client('ec2', region_name='us-west-2') + Pin(service=self.TEST_SERVICE, tracer=self.tracer).onto(ec2) + ec2.describe_instances() + + spans = self.get_spans() + assert spans + self.assertEqual(len(spans), 2) + + ot_span, dd_span = spans + + # confirm the parenting + self.assertIsNone(ot_span.parent_id) + self.assertEqual(dd_span.parent_id, ot_span.span_id) + + self.assertEqual(ot_span.name, 'ec2_op') + self.assertEqual(ot_span.service, 'ec2_svc') + + self.assertEqual(dd_span.get_tag('aws.agent'), 'botocore') + self.assertEqual(dd_span.get_tag('aws.region'), 'us-west-2') + self.assertEqual(dd_span.get_tag('aws.operation'), 'DescribeInstances') + assert_span_http_status_code(dd_span, 200) + self.assertEqual(dd_span.get_metric('retry_attempts'), 0) + self.assertEqual(dd_span.service, 'test-botocore-tracing.ec2') + self.assertEqual(dd_span.resource, 'ec2.describeinstances') + self.assertEqual(dd_span.name, 'ec2.command') diff --git a/tests/contrib/bottle/__init__.py b/tests/contrib/bottle/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/bottle/test.py b/tests/contrib/bottle/test.py new file mode 100644 index 0000000000..28af1a808f --- /dev/null +++ b/tests/contrib/bottle/test.py @@ -0,0 +1,413 @@ +import bottle +import ddtrace +import webtest + +from tests.opentracer.utils import init_tracer +from ...base import BaseTracerTestCase +from ...utils import assert_span_http_status_code + +from ddtrace import compat +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.contrib.bottle import TracePlugin +from ddtrace.ext import http + +SERVICE = 'bottle-app' + + +class TraceBottleTest(BaseTracerTestCase): + """ + Ensures that Bottle is properly traced. + """ + def setUp(self): + super(TraceBottleTest, self).setUp() + + # provide a dummy tracer + self._original_tracer = ddtrace.tracer + ddtrace.tracer = self.tracer + # provide a Bottle app + self.app = bottle.Bottle() + + def tearDown(self): + # restore the tracer + ddtrace.tracer = self._original_tracer + + def _trace_app(self, tracer=None): + self.app.install(TracePlugin(service=SERVICE, tracer=tracer)) + self.app = webtest.TestApp(self.app) + + def test_200(self, query_string=''): + if query_string: + fqs = '?' + query_string + else: + fqs = '' + + # setup our test app + @self.app.route('/hi/') + def hi(name): + return 'hi %s' % name + self._trace_app(self.tracer) + + # make a request + resp = self.app.get('/hi/dougie' + fqs) + assert resp.status_int == 200 + assert compat.to_unicode(resp.body) == u'hi dougie' + # validate it's traced + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.name == 'bottle.request' + assert s.service == 'bottle-app' + assert s.span_type == 'web' + assert s.resource == 'GET /hi/' + assert_span_http_status_code(s, 200) + assert s.get_tag('http.method') == 'GET' + assert s.get_tag(http.URL) == 'http://localhost:80/hi/dougie' + if ddtrace.config.bottle.trace_query_string: + assert s.get_tag(http.QUERY_STRING) == query_string + else: + assert http.QUERY_STRING not in s.meta + + services = self.tracer.writer.pop_services() + assert services == {} + + def test_query_string(self): + return self.test_200('foo=bar') + + def test_query_string_multi_keys(self): + return self.test_200('foo=bar&foo=baz&x=y') + + def test_query_string_trace(self): + with self.override_http_config('bottle', dict(trace_query_string=True)): + return self.test_200('foo=bar') + + def test_query_string_multi_keys_trace(self): + with self.override_http_config('bottle', dict(trace_query_string=True)): + return self.test_200('foo=bar&foo=baz&x=y') + + def test_2xx(self): + @self.app.route('/2xx') + def handled(): + return bottle.HTTPResponse("", status=202) + self._trace_app(self.tracer) + + # make a request + try: + self.app.get('/2xx') + except webtest.AppError: + pass + + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.resource == 'GET /2xx' + assert_span_http_status_code(s, 202) + assert s.error == 0 + + def test_400_return(self): + @self.app.route('/400_return') + def handled400(): + return bottle.HTTPResponse(status=400) + self._trace_app(self.tracer) + + # make a request + try: + self.app.get('/400_return') + except webtest.AppError: + pass + + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.name == 'bottle.request' + assert s.service == 'bottle-app' + assert s.resource == 'GET /400_return' + assert_span_http_status_code(s, 400) + assert s.get_tag('http.method') == 'GET' + assert s.get_tag(http.URL) == 'http://localhost:80/400_return' + assert s.error == 0 + + def test_400_raise(self): + @self.app.route('/400_raise') + def handled400(): + raise bottle.HTTPResponse(status=400) + self._trace_app(self.tracer) + + # make a request + try: + self.app.get('/400_raise') + except webtest.AppError: + pass + + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.name == 'bottle.request' + assert s.service == 'bottle-app' + assert s.resource == 'GET /400_raise' + assert_span_http_status_code(s, 400) + assert s.get_tag('http.method') == 'GET' + assert s.get_tag(http.URL) == 'http://localhost:80/400_raise' + assert s.error == 1 + + def test_500(self): + @self.app.route('/hi') + def hi(): + raise Exception('oh no') + self._trace_app(self.tracer) + + # make a request + try: + self.app.get('/hi') + except webtest.AppError: + pass + + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.name == 'bottle.request' + assert s.service == 'bottle-app' + assert s.resource == 'GET /hi' + assert_span_http_status_code(s, 500) + assert s.get_tag('http.method') == 'GET' + assert s.get_tag(http.URL) == 'http://localhost:80/hi' + assert s.error == 1 + + def test_5XX_response(self): + """ + When a 5XX response is returned + The span error attribute should be 1 + """ + @self.app.route('/5XX-1') + def handled500_1(): + raise bottle.HTTPResponse(status=503) + + @self.app.route('/5XX-2') + def handled500_2(): + raise bottle.HTTPError(status=502) + + @self.app.route('/5XX-3') + def handled500_3(): + bottle.response.status = 503 + return 'hmmm' + + self._trace_app(self.tracer) + + try: + self.app.get('/5XX-1') + except webtest.AppError: + pass + spans = self.tracer.writer.pop() + assert len(spans) == 1 + assert spans[0].error == 1 + + try: + self.app.get('/5XX-2') + except webtest.AppError: + pass + spans = self.tracer.writer.pop() + assert len(spans) == 1 + assert spans[0].error == 1 + + try: + self.app.get('/5XX-3') + except webtest.AppError: + pass + spans = self.tracer.writer.pop() + assert len(spans) == 1 + assert spans[0].error == 1 + + def test_abort(self): + @self.app.route('/hi') + def hi(): + raise bottle.abort(420, 'Enhance Your Calm') + self._trace_app(self.tracer) + + # make a request + try: + self.app.get('/hi') + except webtest.AppError: + pass + + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.name == 'bottle.request' + assert s.service == 'bottle-app' + assert s.resource == 'GET /hi' + assert_span_http_status_code(s, 420) + assert s.get_tag('http.method') == 'GET' + assert s.get_tag(http.URL) == 'http://localhost:80/hi' + + def test_bottle_global_tracer(self): + # without providing a Tracer instance, it should work + @self.app.route('/home/') + def home(): + return 'Hello world' + self._trace_app() + + # make a request + resp = self.app.get('/home/') + assert resp.status_int == 200 + # validate it's traced + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.name == 'bottle.request' + assert s.service == 'bottle-app' + assert s.resource == 'GET /home/' + assert_span_http_status_code(s, 200) + assert s.get_tag('http.method') == 'GET' + assert s.get_tag(http.URL) == 'http://localhost:80/home/' + + def test_analytics_global_on_integration_default(self): + """ + When making a request + When an integration trace search is not event sample rate is not set and globally trace search is enabled + We expect the root span to have the appropriate tag + """ + # setup our test app + @self.app.route('/hi/') + def hi(name): + return 'hi %s' % name + self._trace_app(self.tracer) + + with self.override_global_config(dict(analytics_enabled=True)): + resp = self.app.get('/hi/dougie') + assert resp.status_int == 200 + assert compat.to_unicode(resp.body) == u'hi dougie' + + root = self.get_root_span() + root.assert_matches( + name='bottle.request', + metrics={ + ANALYTICS_SAMPLE_RATE_KEY: 1.0, + }, + ) + + for span in self.spans: + if span == root: + continue + self.assertIsNone(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + def test_analytics_global_on_integration_on(self): + """ + When making a request + When an integration trace search is enabled and sample rate is set and globally trace search is enabled + We expect the root span to have the appropriate tag + """ + # setup our test app + @self.app.route('/hi/') + def hi(name): + return 'hi %s' % name + self._trace_app(self.tracer) + + with self.override_global_config(dict(analytics_enabled=True)): + with self.override_config('bottle', dict(analytics_enabled=True, analytics_sample_rate=0.5)): + resp = self.app.get('/hi/dougie') + assert resp.status_int == 200 + assert compat.to_unicode(resp.body) == u'hi dougie' + + root = self.get_root_span() + root.assert_matches( + name='bottle.request', + metrics={ + ANALYTICS_SAMPLE_RATE_KEY: 0.5, + }, + ) + + for span in self.spans: + if span == root: + continue + self.assertIsNone(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + def test_analytics_global_off_integration_default(self): + """ + When making a request + When an integration trace search is not set and sample rate is set and globally trace search is disabled + We expect the root span to not include tag + """ + # setup our test app + @self.app.route('/hi/') + def hi(name): + return 'hi %s' % name + self._trace_app(self.tracer) + + with self.override_global_config(dict(analytics_enabled=False)): + resp = self.app.get('/hi/dougie') + assert resp.status_int == 200 + assert compat.to_unicode(resp.body) == u'hi dougie' + + root = self.get_root_span() + self.assertIsNone(root.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + for span in self.spans: + if span == root: + continue + self.assertIsNone(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + def test_analytics_global_off_integration_on(self): + """ + When making a request + When an integration trace search is enabled and sample rate is set and globally trace search is disabled + We expect the root span to have the appropriate tag + """ + # setup our test app + @self.app.route('/hi/') + def hi(name): + return 'hi %s' % name + self._trace_app(self.tracer) + + with self.override_global_config(dict(analytics_enabled=False)): + with self.override_config('bottle', dict(analytics_enabled=True, analytics_sample_rate=0.5)): + resp = self.app.get('/hi/dougie') + assert resp.status_int == 200 + assert compat.to_unicode(resp.body) == u'hi dougie' + + root = self.get_root_span() + root.assert_matches( + name='bottle.request', + metrics={ + ANALYTICS_SAMPLE_RATE_KEY: 0.5, + }, + ) + + for span in self.spans: + if span == root: + continue + self.assertIsNone(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + def test_200_ot(self): + ot_tracer = init_tracer('my_svc', self.tracer) + + # setup our test app + @self.app.route('/hi/') + def hi(name): + return 'hi %s' % name + self._trace_app(self.tracer) + + # make a request + with ot_tracer.start_active_span('ot_span'): + resp = self.app.get('/hi/dougie') + + assert resp.status_int == 200 + assert compat.to_unicode(resp.body) == u'hi dougie' + # validate it's traced + spans = self.tracer.writer.pop() + assert len(spans) == 2 + ot_span, dd_span = spans + + # confirm the parenting + assert ot_span.parent_id is None + assert dd_span.parent_id == ot_span.span_id + + assert ot_span.resource == 'ot_span' + + assert dd_span.name == 'bottle.request' + assert dd_span.service == 'bottle-app' + assert dd_span.resource == 'GET /hi/' + assert_span_http_status_code(dd_span, 200) + assert dd_span.get_tag('http.method') == 'GET' + assert dd_span.get_tag(http.URL) == 'http://localhost:80/hi/dougie' + + services = self.tracer.writer.pop_services() + assert services == {} diff --git a/tests/contrib/bottle/test_autopatch.py b/tests/contrib/bottle/test_autopatch.py new file mode 100644 index 0000000000..e4ca346860 --- /dev/null +++ b/tests/contrib/bottle/test_autopatch.py @@ -0,0 +1,98 @@ +import bottle +import ddtrace +import webtest + +from unittest import TestCase +from tests.test_tracer import get_dummy_tracer +from ...utils import assert_span_http_status_code + +from ddtrace import compat + + +SERVICE = 'bottle-app' + + +class TraceBottleTest(TestCase): + """ + Ensures that Bottle is properly traced. + """ + def setUp(self): + # provide a dummy tracer + self.tracer = get_dummy_tracer() + self._original_tracer = ddtrace.tracer + ddtrace.tracer = self.tracer + # provide a Bottle app + self.app = bottle.Bottle() + + def tearDown(self): + # restore the tracer + ddtrace.tracer = self._original_tracer + + def _trace_app(self, tracer=None): + self.app = webtest.TestApp(self.app) + + def test_200(self): + # setup our test app + @self.app.route('/hi/') + def hi(name): + return 'hi %s' % name + self._trace_app(self.tracer) + + # make a request + resp = self.app.get('/hi/dougie') + assert resp.status_int == 200 + assert compat.to_unicode(resp.body) == u'hi dougie' + # validate it's traced + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.name == 'bottle.request' + assert s.service == 'bottle-app' + assert s.resource == 'GET /hi/' + assert_span_http_status_code(s, 200) + assert s.get_tag('http.method') == 'GET' + + services = self.tracer.writer.pop_services() + assert services == {} + + def test_500(self): + @self.app.route('/hi') + def hi(): + raise Exception('oh no') + self._trace_app(self.tracer) + + # make a request + try: + resp = self.app.get('/hi') + assert resp.status_int == 500 + except Exception: + pass + + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.name == 'bottle.request' + assert s.service == 'bottle-app' + assert s.resource == 'GET /hi' + assert_span_http_status_code(s, 500) + assert s.get_tag('http.method') == 'GET' + + def test_bottle_global_tracer(self): + # without providing a Tracer instance, it should work + @self.app.route('/home/') + def home(): + return 'Hello world' + self._trace_app() + + # make a request + resp = self.app.get('/home/') + assert resp.status_int == 200 + # validate it's traced + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.name == 'bottle.request' + assert s.service == 'bottle-app' + assert s.resource == 'GET /home/' + assert_span_http_status_code(s, 200) + assert s.get_tag('http.method') == 'GET' diff --git a/tests/contrib/bottle/test_distributed.py b/tests/contrib/bottle/test_distributed.py new file mode 100644 index 0000000000..742852c3ab --- /dev/null +++ b/tests/contrib/bottle/test_distributed.py @@ -0,0 +1,91 @@ +import bottle +import webtest + +import ddtrace +from ddtrace import compat +from ddtrace.contrib.bottle import TracePlugin + +from ...base import BaseTracerTestCase +from ...utils import assert_span_http_status_code + +SERVICE = 'bottle-app' + + +class TraceBottleDistributedTest(BaseTracerTestCase): + """ + Ensures that Bottle is properly traced. + """ + def setUp(self): + super(TraceBottleDistributedTest, self).setUp() + + # provide a dummy tracer + self._original_tracer = ddtrace.tracer + ddtrace.tracer = self.tracer + # provide a Bottle app + self.app = bottle.Bottle() + + def tearDown(self): + # restore the tracer + ddtrace.tracer = self._original_tracer + + def _trace_app_distributed(self, tracer=None): + self.app.install(TracePlugin(service=SERVICE, tracer=tracer)) + self.app = webtest.TestApp(self.app) + + def _trace_app_not_distributed(self, tracer=None): + self.app.install(TracePlugin(service=SERVICE, tracer=tracer, distributed_tracing=False)) + self.app = webtest.TestApp(self.app) + + def test_distributed(self): + # setup our test app + @self.app.route('/hi/') + def hi(name): + return 'hi %s' % name + self._trace_app_distributed(self.tracer) + + # make a request + headers = {'x-datadog-trace-id': '123', + 'x-datadog-parent-id': '456'} + resp = self.app.get('/hi/dougie', headers=headers) + assert resp.status_int == 200 + assert compat.to_unicode(resp.body) == u'hi dougie' + + # validate it's traced + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.name == 'bottle.request' + assert s.service == 'bottle-app' + assert s.resource == 'GET /hi/' + assert_span_http_status_code(s, 200) + assert s.get_tag('http.method') == 'GET' + # check distributed headers + assert 123 == s.trace_id + assert 456 == s.parent_id + + def test_not_distributed(self): + # setup our test app + @self.app.route('/hi/') + def hi(name): + return 'hi %s' % name + self._trace_app_not_distributed(self.tracer) + + # make a request + headers = {'x-datadog-trace-id': '123', + 'x-datadog-parent-id': '456'} + resp = self.app.get('/hi/dougie', headers=headers) + assert resp.status_int == 200 + assert compat.to_unicode(resp.body) == u'hi dougie' + + # validate it's traced + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.name == 'bottle.request' + assert s.service == 'bottle-app' + assert s.resource == 'GET /hi/' + assert_span_http_status_code(s, 200) + assert s.get_tag('http.method') == 'GET' + # check distributed headers + assert 123 != s.trace_id + assert 456 != s.parent_id diff --git a/tests/contrib/cassandra/__init__.py b/tests/contrib/cassandra/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/cassandra/test.py b/tests/contrib/cassandra/test.py new file mode 100644 index 0000000000..e028836658 --- /dev/null +++ b/tests/contrib/cassandra/test.py @@ -0,0 +1,458 @@ +# stdlib +import contextlib +import logging +import unittest +from threading import Event + +# 3p +from cassandra.cluster import Cluster, ResultSet +from cassandra.query import BatchStatement, SimpleStatement + +# project +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.contrib.cassandra.patch import patch, unpatch +from ddtrace.contrib.cassandra.session import get_traced_cassandra, SERVICE +from ddtrace.ext import net, cassandra as cassx, errors +from ddtrace import config, Pin + +# testing +from tests.contrib.config import CASSANDRA_CONFIG +from tests.opentracer.utils import init_tracer +from tests.test_tracer import get_dummy_tracer + +# Oftentimes our tests fails because Cassandra connection timeouts during keyspace drop. Slowness in keyspace drop +# is known and is due to 'auto_snapshot' configuration. In our test env we should disable it, but the official cassandra +# image that we are using only allows us to configure a few configs: +# https://github.com/docker-library/cassandra/blob/4474c6c5cc2a81ee57c5615aae00555fca7e26a6/3.11/docker-entrypoint.sh#L51 +# So for now we just increase the timeout, if this is not enough we may want to extend the official image with our own +# custom image. +CONNECTION_TIMEOUT_SECS = 20 # override the default value of 5 + +logging.getLogger('cassandra').setLevel(logging.INFO) + + +def setUpModule(): + # skip all the modules if the Cluster is not available + if not Cluster: + raise unittest.SkipTest('cassandra.cluster.Cluster is not available.') + + # create the KEYSPACE for this test module + cluster = Cluster(port=CASSANDRA_CONFIG['port'], connect_timeout=CONNECTION_TIMEOUT_SECS) + session = cluster.connect() + session.execute('DROP KEYSPACE IF EXISTS test', timeout=10) + session.execute( + "CREATE KEYSPACE if not exists test WITH REPLICATION = { 'class' : 'SimpleStrategy', 'replication_factor': 1};" + ) + session.execute('CREATE TABLE if not exists test.person (name text PRIMARY KEY, age int, description text)') + session.execute('CREATE TABLE if not exists test.person_write (name text PRIMARY KEY, age int, description text)') + session.execute("INSERT INTO test.person (name, age, description) VALUES ('Cassandra', 100, 'A cruel mistress')") + session.execute( + "INSERT INTO test.person (name, age, description) VALUES ('Athena', 100, 'Whose shield is thunder')" + ) + session.execute("INSERT INTO test.person (name, age, description) VALUES ('Calypso', 100, 'Softly-braided nymph')") + + +def tearDownModule(): + # destroy the KEYSPACE + cluster = Cluster(port=CASSANDRA_CONFIG['port'], connect_timeout=CONNECTION_TIMEOUT_SECS) + session = cluster.connect() + session.execute('DROP TABLE IF EXISTS test.person') + session.execute('DROP TABLE IF EXISTS test.person_write') + session.execute('DROP KEYSPACE IF EXISTS test', timeout=10) + + +class CassandraBase(object): + """ + Needs a running Cassandra + """ + TEST_QUERY = "SELECT * from test.person WHERE name = 'Cassandra'" + TEST_QUERY_PAGINATED = 'SELECT * from test.person' + TEST_KEYSPACE = 'test' + TEST_PORT = CASSANDRA_CONFIG['port'] + TEST_SERVICE = 'test-cassandra' + + def _traced_session(self): + # implement me + pass + + @contextlib.contextmanager + def override_config(self, integration, values): + """ + Temporarily override an integration configuration value + >>> with self.override_config('flask', dict(service_name='test-service')): + ... # Your test + """ + options = getattr(config, integration) + + original = dict( + (key, options.get(key)) + for key in values.keys() + ) + + options.update(values) + try: + yield + finally: + options.update(original) + + def setUp(self): + self.cluster = Cluster(port=CASSANDRA_CONFIG['port']) + self.session = self.cluster.connect() + + def _assert_result_correct(self, result): + assert len(result.current_rows) == 1 + for r in result: + assert r.name == 'Cassandra' + assert r.age == 100 + assert r.description == 'A cruel mistress' + + def _test_query_base(self, execute_fn): + session, tracer = self._traced_session() + writer = tracer.writer + result = execute_fn(session, self.TEST_QUERY) + self._assert_result_correct(result) + + spans = writer.pop() + assert spans, spans + + # another for the actual query + assert len(spans) == 1 + + query = spans[0] + assert query.service == self.TEST_SERVICE + assert query.resource == self.TEST_QUERY + assert query.span_type == 'cassandra' + + assert query.get_tag(cassx.KEYSPACE) == self.TEST_KEYSPACE + assert query.get_metric(net.TARGET_PORT) == self.TEST_PORT + assert query.get_metric(cassx.ROW_COUNT) == 1 + assert query.get_tag(cassx.PAGE_NUMBER) is None + assert query.get_tag(cassx.PAGINATED) == 'False' + assert query.get_tag(net.TARGET_HOST) == '127.0.0.1' + + # confirm no analytics sample rate set by default + assert query.get_metric(ANALYTICS_SAMPLE_RATE_KEY) is None + + def test_query(self): + def execute_fn(session, query): + return session.execute(query) + self._test_query_base(execute_fn) + + def test_query_analytics_with_rate(self): + with self.override_config( + 'cassandra', + dict(analytics_enabled=True, analytics_sample_rate=0.5) + ): + session, tracer = self._traced_session() + session.execute(self.TEST_QUERY) + + writer = tracer.writer + spans = writer.pop() + assert spans, spans + # another for the actual query + assert len(spans) == 1 + query = spans[0] + # confirm no analytics sample rate set by default + assert query.get_metric(ANALYTICS_SAMPLE_RATE_KEY) == 0.5 + + def test_query_analytics_without_rate(self): + with self.override_config( + 'cassandra', + dict(analytics_enabled=True) + ): + session, tracer = self._traced_session() + session.execute(self.TEST_QUERY) + + writer = tracer.writer + spans = writer.pop() + assert spans, spans + # another for the actual query + assert len(spans) == 1 + query = spans[0] + # confirm no analytics sample rate set by default + assert query.get_metric(ANALYTICS_SAMPLE_RATE_KEY) == 1.0 + + def test_query_ot(self): + """Ensure that cassandra works with the opentracer.""" + def execute_fn(session, query): + return session.execute(query) + + session, tracer = self._traced_session() + ot_tracer = init_tracer('cass_svc', tracer) + writer = tracer.writer + + with ot_tracer.start_active_span('cass_op'): + result = execute_fn(session, self.TEST_QUERY) + self._assert_result_correct(result) + + spans = writer.pop() + assert spans, spans + + # another for the actual query + assert len(spans) == 2 + ot_span, dd_span = spans + + # confirm parenting + assert ot_span.parent_id is None + assert dd_span.parent_id == ot_span.span_id + + assert ot_span.name == 'cass_op' + assert ot_span.service == 'cass_svc' + + assert dd_span.service == self.TEST_SERVICE + assert dd_span.resource == self.TEST_QUERY + assert dd_span.span_type == 'cassandra' + + assert dd_span.get_tag(cassx.KEYSPACE) == self.TEST_KEYSPACE + assert dd_span.get_metric(net.TARGET_PORT) == self.TEST_PORT + assert dd_span.get_metric(cassx.ROW_COUNT) == 1 + assert dd_span.get_tag(cassx.PAGE_NUMBER) is None + assert dd_span.get_tag(cassx.PAGINATED) == 'False' + assert dd_span.get_tag(net.TARGET_HOST) == '127.0.0.1' + + def test_query_async(self): + def execute_fn(session, query): + event = Event() + result = [] + future = session.execute_async(query) + + def callback(results): + result.append(ResultSet(future, results)) + event.set() + + future.add_callback(callback) + event.wait() + return result[0] + self._test_query_base(execute_fn) + + def test_query_async_clearing_callbacks(self): + def execute_fn(session, query): + future = session.execute_async(query) + future.clear_callbacks() + return future.result() + self._test_query_base(execute_fn) + + def test_span_is_removed_from_future(self): + session, tracer = self._traced_session() + future = session.execute_async(self.TEST_QUERY) + future.result() + span = getattr(future, '_ddtrace_current_span', None) + assert span is None + + def test_paginated_query(self): + session, tracer = self._traced_session() + writer = tracer.writer + statement = SimpleStatement(self.TEST_QUERY_PAGINATED, fetch_size=1) + result = session.execute(statement) + # iterate over all pages + results = list(result) + assert len(results) == 3 + + spans = writer.pop() + assert spans, spans + + # There are 4 spans for 3 results since the driver makes a request with + # no result to check that it has reached the last page + assert len(spans) == 4 + + for i in range(4): + query = spans[i] + assert query.service == self.TEST_SERVICE + assert query.resource == self.TEST_QUERY_PAGINATED + assert query.span_type == 'cassandra' + + assert query.get_tag(cassx.KEYSPACE) == self.TEST_KEYSPACE + assert query.get_metric(net.TARGET_PORT) == self.TEST_PORT + if i == 3: + assert query.get_metric(cassx.ROW_COUNT) == 0 + else: + assert query.get_metric(cassx.ROW_COUNT) == 1 + assert query.get_tag(net.TARGET_HOST) == '127.0.0.1' + assert query.get_tag(cassx.PAGINATED) == 'True' + assert query.get_metric(cassx.PAGE_NUMBER) == i + 1 + + def test_trace_with_service(self): + session, tracer = self._traced_session() + writer = tracer.writer + session.execute(self.TEST_QUERY) + spans = writer.pop() + assert spans + assert len(spans) == 1 + query = spans[0] + assert query.service == self.TEST_SERVICE + + def test_trace_error(self): + session, tracer = self._traced_session() + writer = tracer.writer + + try: + session.execute('select * from test.i_dont_exist limit 1') + except Exception: + pass + else: + assert 0 + + spans = writer.pop() + assert spans + query = spans[0] + assert query.error == 1 + for k in (errors.ERROR_MSG, errors.ERROR_TYPE): + assert query.get_tag(k) + + def test_bound_statement(self): + session, tracer = self._traced_session() + writer = tracer.writer + + query = 'INSERT INTO test.person_write (name, age, description) VALUES (?, ?, ?)' + prepared = session.prepare(query) + session.execute(prepared, ('matt', 34, 'can')) + + prepared = session.prepare(query) + bound_stmt = prepared.bind(('leo', 16, 'fr')) + session.execute(bound_stmt) + + spans = writer.pop() + assert len(spans) == 2 + for s in spans: + assert s.resource == query + + def test_batch_statement(self): + session, tracer = self._traced_session() + writer = tracer.writer + + batch = BatchStatement() + batch.add( + SimpleStatement('INSERT INTO test.person_write (name, age, description) VALUES (%s, %s, %s)'), + ('Joe', 1, 'a'), + ) + batch.add( + SimpleStatement('INSERT INTO test.person_write (name, age, description) VALUES (%s, %s, %s)'), + ('Jane', 2, 'b'), + ) + session.execute(batch) + + spans = writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.resource == 'BatchStatement' + assert s.get_metric('cassandra.batch_size') == 2 + assert 'test.person' in s.get_tag('cassandra.query') + + def test_batched_bound_statement(self): + session, tracer = self._traced_session() + writer = tracer.writer + + batch = BatchStatement() + + prepared_statement = session.prepare('INSERT INTO test.person_write (name, age, description) VALUES (?, ?, ?)') + batch.add( + prepared_statement.bind(('matt', 34, 'can')) + ) + session.execute(batch) + + spans = writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.resource == 'BatchStatement' + assert s.get_tag('cassandra.query') == '' + + +class TestCassPatchDefault(unittest.TestCase, CassandraBase): + """Test Cassandra instrumentation with patching and default configuration""" + + TEST_SERVICE = SERVICE + + def tearDown(self): + unpatch() + + def setUp(self): + CassandraBase.setUp(self) + patch() + + def _traced_session(self): + tracer = get_dummy_tracer() + Pin.get_from(self.cluster).clone(tracer=tracer).onto(self.cluster) + return self.cluster.connect(self.TEST_KEYSPACE), tracer + + +class TestCassPatchAll(TestCassPatchDefault): + """Test Cassandra instrumentation with patching and custom service on all clusters""" + + TEST_SERVICE = 'test-cassandra-patch-all' + + def tearDown(self): + unpatch() + + def setUp(self): + CassandraBase.setUp(self) + patch() + + def _traced_session(self): + tracer = get_dummy_tracer() + # pin the global Cluster to test if they will conflict + Pin(service=self.TEST_SERVICE, tracer=tracer).onto(Cluster) + self.cluster = Cluster(port=CASSANDRA_CONFIG['port']) + + return self.cluster.connect(self.TEST_KEYSPACE), tracer + + +class TestCassPatchOne(TestCassPatchDefault): + """Test Cassandra instrumentation with patching and custom service on one cluster""" + + TEST_SERVICE = 'test-cassandra-patch-one' + + def tearDown(self): + unpatch() + + def setUp(self): + CassandraBase.setUp(self) + patch() + + def _traced_session(self): + tracer = get_dummy_tracer() + # pin the global Cluster to test if they will conflict + Pin(service='not-%s' % self.TEST_SERVICE).onto(Cluster) + self.cluster = Cluster(port=CASSANDRA_CONFIG['port']) + + Pin(service=self.TEST_SERVICE, tracer=tracer).onto(self.cluster) + return self.cluster.connect(self.TEST_KEYSPACE), tracer + + def test_patch_unpatch(self): + # Test patch idempotence + patch() + patch() + + tracer = get_dummy_tracer() + Pin.get_from(Cluster).clone(tracer=tracer).onto(Cluster) + + session = Cluster(port=CASSANDRA_CONFIG['port']).connect(self.TEST_KEYSPACE) + session.execute(self.TEST_QUERY) + + spans = tracer.writer.pop() + assert spans, spans + assert len(spans) == 1 + + # Test unpatch + unpatch() + + session = Cluster(port=CASSANDRA_CONFIG['port']).connect(self.TEST_KEYSPACE) + session.execute(self.TEST_QUERY) + + spans = tracer.writer.pop() + assert not spans, spans + + # Test patch again + patch() + Pin.get_from(Cluster).clone(tracer=tracer).onto(Cluster) + + session = Cluster(port=CASSANDRA_CONFIG['port']).connect(self.TEST_KEYSPACE) + session.execute(self.TEST_QUERY) + + spans = tracer.writer.pop() + assert spans, spans + + +def test_backwards_compat_get_traced_cassandra(): + cluster = get_traced_cassandra() + session = cluster(port=CASSANDRA_CONFIG['port']).connect() + session.execute('drop table if exists test.person') diff --git a/tests/contrib/celery/__init__.py b/tests/contrib/celery/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/celery/autopatch.py b/tests/contrib/celery/autopatch.py new file mode 100644 index 0000000000..b66dfa2a99 --- /dev/null +++ b/tests/contrib/celery/autopatch.py @@ -0,0 +1,9 @@ +from ddtrace import Pin + +if __name__ == '__main__': + # have to import celery in order to have the post-import hooks run + import celery + + # now celery.Celery should be patched and should have a pin + assert Pin.get_from(celery.Celery) + print('Test success') diff --git a/tests/contrib/celery/base.py b/tests/contrib/celery/base.py new file mode 100644 index 0000000000..8c12977fe2 --- /dev/null +++ b/tests/contrib/celery/base.py @@ -0,0 +1,41 @@ +from celery import Celery + +from ddtrace import Pin +from ddtrace.compat import PY2 +from ddtrace.contrib.celery import patch, unpatch + +from ..config import REDIS_CONFIG +from ...base import BaseTracerTestCase + + +REDIS_URL = 'redis://127.0.0.1:{port}'.format(port=REDIS_CONFIG['port']) +BROKER_URL = '{redis}/{db}'.format(redis=REDIS_URL, db=0) +BACKEND_URL = '{redis}/{db}'.format(redis=REDIS_URL, db=1) + + +class CeleryBaseTestCase(BaseTracerTestCase): + """Test case that handles a full fledged Celery application with a + custom tracer. It patches the new Celery application. + """ + + def setUp(self): + super(CeleryBaseTestCase, self).setUp() + + # instrument Celery and create an app with Broker and Result backends + patch() + self.pin = Pin(service='celery-unittest', tracer=self.tracer) + self.app = Celery('celery.test_app', broker=BROKER_URL, backend=BACKEND_URL) + # override pins to use our Dummy Tracer + Pin.override(self.app, tracer=self.tracer) + + def tearDown(self): + # remove instrumentation from Celery + unpatch() + self.app = None + + super(CeleryBaseTestCase, self).tearDown() + + def assert_items_equal(self, a, b): + if PY2: + return self.assertItemsEqual(a, b) + return self.assertCountEqual(a, b) diff --git a/tests/contrib/celery/test_app.py b/tests/contrib/celery/test_app.py new file mode 100644 index 0000000000..ed26f00878 --- /dev/null +++ b/tests/contrib/celery/test_app.py @@ -0,0 +1,21 @@ +import celery + +from ddtrace import Pin +from ddtrace.contrib.celery import unpatch_app + +from .base import CeleryBaseTestCase + + +class CeleryAppTest(CeleryBaseTestCase): + """Ensures the default application is properly instrumented""" + + def test_patch_app(self): + # When celery.App is patched it must include a `Pin` instance + app = celery.Celery() + assert Pin.get_from(app) is not None + + def test_unpatch_app(self): + # When celery.App is unpatched it must not include a `Pin` instance + unpatch_app(celery.Celery) + app = celery.Celery() + assert Pin.get_from(app) is None diff --git a/tests/contrib/celery/test_autopatch.py b/tests/contrib/celery/test_autopatch.py new file mode 100644 index 0000000000..de31352ffc --- /dev/null +++ b/tests/contrib/celery/test_autopatch.py @@ -0,0 +1,13 @@ +#!/usr/bin/env python +import subprocess +import unittest + + +class DdtraceRunTest(unittest.TestCase): + """Test that celery is patched successfully if run with ddtrace-run.""" + + def test_autopatch(self): + out = subprocess.check_output( + ['ddtrace-run', 'python', 'tests/contrib/celery/autopatch.py'] + ) + assert out.startswith(b'Test success') diff --git a/tests/contrib/celery/test_integration.py b/tests/contrib/celery/test_integration.py new file mode 100644 index 0000000000..a93ec0f95f --- /dev/null +++ b/tests/contrib/celery/test_integration.py @@ -0,0 +1,428 @@ +import celery +from celery.exceptions import Retry + +from ddtrace.contrib.celery import patch, unpatch + +from .base import CeleryBaseTestCase + +from tests.opentracer.utils import init_tracer + + +class MyException(Exception): + pass + + +class CeleryIntegrationTask(CeleryBaseTestCase): + """Ensures that the tracer works properly with a real Celery application + without breaking the Application or Task API. + """ + + def test_concurrent_delays(self): + # it should create one trace for each delayed execution + @self.app.task + def fn_task(): + return 42 + + for x in range(100): + fn_task.delay() + + traces = self.tracer.writer.pop_traces() + assert 100 == len(traces) + + def test_idempotent_patch(self): + # calling patch() twice doesn't have side effects + patch() + + @self.app.task + def fn_task(): + return 42 + + t = fn_task.apply() + assert t.successful() + assert 42 == t.result + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + + def test_idempotent_unpatch(self): + # calling unpatch() twice doesn't have side effects + unpatch() + unpatch() + + @self.app.task + def fn_task(): + return 42 + + t = fn_task.apply() + assert t.successful() + assert 42 == t.result + + traces = self.tracer.writer.pop_traces() + assert 0 == len(traces) + + def test_fn_task_run(self): + # the body of the function is not instrumented so calling it + # directly doesn't create a trace + @self.app.task + def fn_task(): + return 42 + + t = fn_task.run() + assert t == 42 + + traces = self.tracer.writer.pop_traces() + assert 0 == len(traces) + + def test_fn_task_call(self): + # the body of the function is not instrumented so calling it + # directly doesn't create a trace + @self.app.task + def fn_task(): + return 42 + + t = fn_task() + assert t == 42 + + traces = self.tracer.writer.pop_traces() + assert 0 == len(traces) + + def test_fn_task_apply(self): + # it should execute a traced task with a returning value + @self.app.task + def fn_task(): + return 42 + + t = fn_task.apply() + assert t.successful() + assert 42 == t.result + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + span = traces[0][0] + assert span.error == 0 + assert span.name == 'celery.run' + assert span.resource == 'tests.contrib.celery.test_integration.fn_task' + assert span.service == 'celery-worker' + assert span.span_type == 'worker' + assert span.get_tag('celery.id') == t.task_id + assert span.get_tag('celery.action') == 'run' + assert span.get_tag('celery.state') == 'SUCCESS' + + def test_fn_task_apply_bind(self): + # it should execute a traced task with a returning value + @self.app.task(bind=True) + def fn_task(self): + return self + + t = fn_task.apply() + assert t.successful() + assert 'fn_task' in t.result.name + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + span = traces[0][0] + assert span.error == 0 + assert span.name == 'celery.run' + assert span.resource == 'tests.contrib.celery.test_integration.fn_task' + assert span.service == 'celery-worker' + assert span.get_tag('celery.id') == t.task_id + assert span.get_tag('celery.action') == 'run' + assert span.get_tag('celery.state') == 'SUCCESS' + + def test_fn_task_apply_async(self): + # it should execute a traced async task that has parameters + @self.app.task + def fn_task_parameters(user, force_logout=False): + return (user, force_logout) + + t = fn_task_parameters.apply_async(args=['user'], kwargs={'force_logout': True}) + assert 'PENDING' == t.status + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + span = traces[0][0] + assert span.error == 0 + assert span.name == 'celery.apply' + assert span.resource == 'tests.contrib.celery.test_integration.fn_task_parameters' + assert span.service == 'celery-producer' + assert span.get_tag('celery.id') == t.task_id + assert span.get_tag('celery.action') == 'apply_async' + assert span.get_tag('celery.routing_key') == 'celery' + + def test_fn_task_delay(self): + # using delay shorthand must preserve arguments + @self.app.task + def fn_task_parameters(user, force_logout=False): + return (user, force_logout) + + t = fn_task_parameters.delay('user', force_logout=True) + assert 'PENDING' == t.status + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + span = traces[0][0] + assert span.error == 0 + assert span.name == 'celery.apply' + assert span.resource == 'tests.contrib.celery.test_integration.fn_task_parameters' + assert span.service == 'celery-producer' + assert span.get_tag('celery.id') == t.task_id + assert span.get_tag('celery.action') == 'apply_async' + assert span.get_tag('celery.routing_key') == 'celery' + + def test_fn_exception(self): + # it should catch exceptions in task functions + @self.app.task + def fn_exception(): + raise Exception('Task class is failing') + + t = fn_exception.apply() + assert t.failed() + assert 'Task class is failing' in t.traceback + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + span = traces[0][0] + assert span.name == 'celery.run' + assert span.resource == 'tests.contrib.celery.test_integration.fn_exception' + assert span.service == 'celery-worker' + assert span.get_tag('celery.id') == t.task_id + assert span.get_tag('celery.action') == 'run' + assert span.get_tag('celery.state') == 'FAILURE' + assert span.error == 1 + assert span.get_tag('error.msg') == 'Task class is failing' + assert 'Traceback (most recent call last)' in span.get_tag('error.stack') + assert 'Task class is failing' in span.get_tag('error.stack') + + def test_fn_exception_expected(self): + # it should catch exceptions in task functions + @self.app.task(throws=(MyException,)) + def fn_exception(): + raise MyException('Task class is failing') + + t = fn_exception.apply() + assert t.failed() + assert 'Task class is failing' in t.traceback + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + span = traces[0][0] + assert span.name == 'celery.run' + assert span.resource == 'tests.contrib.celery.test_integration.fn_exception' + assert span.service == 'celery-worker' + assert span.get_tag('celery.id') == t.task_id + assert span.get_tag('celery.action') == 'run' + assert span.get_tag('celery.state') == 'FAILURE' + assert span.error == 0 + + def test_fn_retry_exception(self): + # it should not catch retry exceptions in task functions + @self.app.task + def fn_exception(): + raise Retry('Task class is being retried') + + t = fn_exception.apply() + assert not t.failed() + assert 'Task class is being retried' in t.traceback + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + span = traces[0][0] + assert span.name == 'celery.run' + assert span.resource == 'tests.contrib.celery.test_integration.fn_exception' + assert span.service == 'celery-worker' + assert span.get_tag('celery.id') == t.task_id + assert span.get_tag('celery.action') == 'run' + assert span.get_tag('celery.state') == 'RETRY' + assert span.get_tag('celery.retry.reason') == 'Task class is being retried' + + # This type of retrying should not be marked as an exception + assert span.error == 0 + assert not span.get_tag('error.msg') + assert not span.get_tag('error.stack') + + def test_class_task(self): + # it should execute class based tasks with a returning value + class BaseTask(self.app.Task): + def run(self): + return 42 + + t = BaseTask() + # register the Task class if it's available (required in Celery 4.0+) + register_task = getattr(self.app, 'register_task', None) + if register_task is not None: + register_task(t) + + r = t.apply() + assert r.successful() + assert 42 == r.result + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + span = traces[0][0] + assert span.error == 0 + assert span.name == 'celery.run' + assert span.resource == 'tests.contrib.celery.test_integration.BaseTask' + assert span.service == 'celery-worker' + assert span.get_tag('celery.id') == r.task_id + assert span.get_tag('celery.action') == 'run' + assert span.get_tag('celery.state') == 'SUCCESS' + + def test_class_task_exception(self): + # it should catch exceptions in class based tasks + class BaseTask(self.app.Task): + def run(self): + raise Exception('Task class is failing') + + t = BaseTask() + # register the Task class if it's available (required in Celery 4.0+) + register_task = getattr(self.app, 'register_task', None) + if register_task is not None: + register_task(t) + + r = t.apply() + assert r.failed() + assert 'Task class is failing' in r.traceback + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + span = traces[0][0] + assert span.name == 'celery.run' + assert span.resource == 'tests.contrib.celery.test_integration.BaseTask' + assert span.service == 'celery-worker' + assert span.get_tag('celery.id') == r.task_id + assert span.get_tag('celery.action') == 'run' + assert span.get_tag('celery.state') == 'FAILURE' + assert span.error == 1 + assert span.get_tag('error.msg') == 'Task class is failing' + assert 'Traceback (most recent call last)' in span.get_tag('error.stack') + assert 'Task class is failing' in span.get_tag('error.stack') + + def test_class_task_exception_expected(self): + # it should catch exceptions in class based tasks + class BaseTask(self.app.Task): + throws = (MyException,) + + def run(self): + raise MyException('Task class is failing') + + t = BaseTask() + # register the Task class if it's available (required in Celery 4.0+) + register_task = getattr(self.app, 'register_task', None) + if register_task is not None: + register_task(t) + + r = t.apply() + assert r.failed() + assert 'Task class is failing' in r.traceback + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + span = traces[0][0] + assert span.name == 'celery.run' + assert span.resource == 'tests.contrib.celery.test_integration.BaseTask' + assert span.service == 'celery-worker' + assert span.get_tag('celery.id') == r.task_id + assert span.get_tag('celery.action') == 'run' + assert span.get_tag('celery.state') == 'FAILURE' + assert span.error == 0 + + def test_shared_task(self): + # Ensure Django Shared Task are supported + @celery.shared_task + def add(x, y): + return x + y + + res = add.apply([2, 2]) + assert res.result == 4 + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + span = traces[0][0] + assert span.error == 0 + assert span.name == 'celery.run' + assert span.service == 'celery-worker' + assert span.resource == 'tests.contrib.celery.test_integration.add' + assert span.parent_id is None + assert span.get_tag('celery.id') == res.task_id + assert span.get_tag('celery.action') == 'run' + assert span.get_tag('celery.state') == 'SUCCESS' + + def test_worker_service_name(self): + @self.app.task + def fn_task(): + return 42 + + # Ensure worker service name can be changed via + # configuration object + with self.override_config('celery', dict(worker_service_name='worker-notify')): + t = fn_task.apply() + self.assertTrue(t.successful()) + self.assertEqual(42, t.result) + + traces = self.tracer.writer.pop_traces() + self.assertEqual(1, len(traces)) + self.assertEqual(1, len(traces[0])) + span = traces[0][0] + self.assertEqual(span.service, 'worker-notify') + + def test_producer_service_name(self): + @self.app.task + def fn_task(): + return 42 + + # Ensure producer service name can be changed via + # configuration object + with self.override_config('celery', dict(producer_service_name='task-queue')): + t = fn_task.delay() + self.assertEqual('PENDING', t.status) + + traces = self.tracer.writer.pop_traces() + self.assertEqual(1, len(traces)) + self.assertEqual(1, len(traces[0])) + span = traces[0][0] + self.assertEqual(span.service, 'task-queue') + + def test_fn_task_apply_async_ot(self): + """OpenTracing version of test_fn_task_apply_async.""" + ot_tracer = init_tracer('celery_svc', self.tracer) + + # it should execute a traced async task that has parameters + @self.app.task + def fn_task_parameters(user, force_logout=False): + return (user, force_logout) + + with ot_tracer.start_active_span('celery_op'): + t = fn_task_parameters.apply_async(args=['user'], kwargs={'force_logout': True}) + assert 'PENDING' == t.status + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 2 == len(traces[0]) + ot_span, dd_span = traces[0] + + # confirm the parenting + assert ot_span.parent_id is None + assert dd_span.parent_id == ot_span.span_id + + assert ot_span.name == 'celery_op' + assert ot_span.service == 'celery_svc' + + assert dd_span.error == 0 + assert dd_span.name == 'celery.apply' + assert dd_span.resource == 'tests.contrib.celery.test_integration.fn_task_parameters' + assert dd_span.service == 'celery-producer' + assert dd_span.get_tag('celery.id') == t.task_id + assert dd_span.get_tag('celery.action') == 'apply_async' + assert dd_span.get_tag('celery.routing_key') == 'celery' diff --git a/tests/contrib/celery/test_old_style_task.py b/tests/contrib/celery/test_old_style_task.py new file mode 100644 index 0000000000..74c646d074 --- /dev/null +++ b/tests/contrib/celery/test_old_style_task.py @@ -0,0 +1,50 @@ +import celery + +from .base import CeleryBaseTestCase + + +class CeleryOldStyleTaskTest(CeleryBaseTestCase): + """Ensure Old Style Tasks are properly instrumented""" + + def test_apply_async_previous_style_tasks(self): + # ensures apply_async is properly patched if Celery 1.0 style tasks + # are used even in newer versions. This should extend support to + # previous versions of Celery. + # Regression test: https://github.com/DataDog/dd-trace-py/pull/449 + class CelerySuperClass(celery.task.Task): + abstract = True + + @classmethod + def apply_async(cls, args=None, kwargs=None, **kwargs_): + return super(CelerySuperClass, cls).apply_async(args=args, kwargs=kwargs, **kwargs_) + + def run(self, *args, **kwargs): + if 'stop' in kwargs: + # avoid call loop + return + CelerySubClass.apply_async(args=[], kwargs={'stop': True}) + + class CelerySubClass(CelerySuperClass): + pass + + t = CelerySubClass() + res = t.apply() + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 2 == len(traces[0]) + run_span = traces[0][0] + assert run_span.error == 0 + assert run_span.name == 'celery.run' + assert run_span.resource == 'tests.contrib.celery.test_old_style_task.CelerySubClass' + assert run_span.service == 'celery-worker' + assert run_span.get_tag('celery.id') == res.task_id + assert run_span.get_tag('celery.action') == 'run' + assert run_span.get_tag('celery.state') == 'SUCCESS' + apply_span = traces[0][1] + assert apply_span.error == 0 + assert apply_span.name == 'celery.apply' + assert apply_span.resource == 'tests.contrib.celery.test_old_style_task.CelerySubClass' + assert apply_span.service == 'celery-producer' + assert apply_span.get_tag('celery.action') == 'apply_async' + assert apply_span.get_tag('celery.routing_key') == 'celery' diff --git a/tests/contrib/celery/test_patch.py b/tests/contrib/celery/test_patch.py new file mode 100644 index 0000000000..1fd676c073 --- /dev/null +++ b/tests/contrib/celery/test_patch.py @@ -0,0 +1,20 @@ +import unittest +from ddtrace import Pin + + +class CeleryPatchTest(unittest.TestCase): + def test_patch_after_import(self): + import celery + from ddtrace import patch + patch(celery=True) + + app = celery.Celery() + assert Pin.get_from(app) is not None + + def test_patch_before_import(self): + from ddtrace import patch + patch(celery=True) + import celery + + app = celery.Celery() + assert Pin.get_from(app) is not None diff --git a/tests/contrib/celery/test_task_deprecation.py b/tests/contrib/celery/test_task_deprecation.py new file mode 100644 index 0000000000..89daf3b231 --- /dev/null +++ b/tests/contrib/celery/test_task_deprecation.py @@ -0,0 +1,50 @@ +import warnings +import unittest + +from celery import Celery + +from ddtrace.contrib.celery import patch_task, unpatch_task, unpatch + + +class CeleryDeprecatedTaskPatch(unittest.TestCase): + """Ensures that the previous Task instrumentation is available + as Deprecated API. + """ + def setUp(self): + # create a not instrumented Celery App + self.app = Celery('celery.test_app') + + def tearDown(self): + # be sure the system is always unpatched + unpatch() + self.app = None + + def test_patch_signals_connect(self): + # calling `patch_task` enables instrumentation globally + # while raising a Deprecation warning + with warnings.catch_warnings(record=True) as w: + warnings.simplefilter('always') + + @patch_task + @self.app.task + def fn_task(): + return 42 + + assert len(w) == 1 + assert issubclass(w[-1].category, DeprecationWarning) + assert 'patch(celery=True)' in str(w[-1].message) + + def test_unpatch_signals_diconnect(self): + # calling `unpatch_task` is a no-op that raises a Deprecation + # warning + with warnings.catch_warnings(record=True) as w: + warnings.simplefilter('always') + + @unpatch_task + @self.app.task + def fn_task(): + return 42 + + assert len(w) == 1 + assert issubclass(w[-1].category, DeprecationWarning) + assert 'unpatch()' in str(w[-1].message) diff --git a/tests/contrib/celery/test_utils.py b/tests/contrib/celery/test_utils.py new file mode 100644 index 0000000000..884560870b --- /dev/null +++ b/tests/contrib/celery/test_utils.py @@ -0,0 +1,195 @@ +import gc + +from ddtrace.contrib.celery.utils import ( + tags_from_context, + retrieve_task_id, + attach_span, + detach_span, + retrieve_span, +) + +from .base import CeleryBaseTestCase + + +class CeleryTagsTest(CeleryBaseTestCase): + """Ensures that Celery doesn't extract too much meta + data when executing tasks asynchronously. + """ + def test_tags_from_context(self): + # it should extract only relevant keys + context = { + 'correlation_id': '44b7f305', + 'delivery_info': '{"eager": "True"}', + 'eta': 'soon', + 'expires': 'later', + 'hostname': 'localhost', + 'id': '44b7f305', + 'reply_to': '44b7f305', + 'retries': 4, + 'timelimit': ('now', 'later'), + 'custom_meta': 'custom_value', + } + + metas = tags_from_context(context) + assert metas['celery.correlation_id'] == '44b7f305' + assert metas['celery.delivery_info'] == '{"eager": "True"}' + assert metas['celery.eta'] == 'soon' + assert metas['celery.expires'] == 'later' + assert metas['celery.hostname'] == 'localhost' + assert metas['celery.id'] == '44b7f305' + assert metas['celery.reply_to'] == '44b7f305' + assert metas['celery.retries'] == 4 + assert metas['celery.timelimit'] == ('now', 'later') + assert metas.get('custom_meta', None) is None + + def test_tags_from_context_empty_keys(self): + # it should not extract empty keys + context = { + 'correlation_id': None, + 'exchange': '', + 'timelimit': (None, None), + 'retries': 0, + } + + tags = tags_from_context(context) + assert {} == tags + # edge case: `timelimit` can also be a list of None values + context = { + 'timelimit': [None, None], + } + + tags = tags_from_context(context) + assert {} == tags + + def test_span_propagation(self): + # ensure spans getter and setter works properly + @self.app.task + def fn_task(): + return 42 + + # propagate and retrieve a Span + task_id = '7c6731af-9533-40c3-83a9-25b58f0d837f' + span_before = self.tracer.trace('celery.run') + attach_span(fn_task, task_id, span_before) + span_after = retrieve_span(fn_task, task_id) + assert span_before is span_after + + def test_span_delete(self): + # ensure the helper removes properly a propagated Span + @self.app.task + def fn_task(): + return 42 + + # propagate a Span + task_id = '7c6731af-9533-40c3-83a9-25b58f0d837f' + span = self.tracer.trace('celery.run') + attach_span(fn_task, task_id, span) + # delete the Span + weak_dict = getattr(fn_task, '__dd_task_span') + detach_span(fn_task, task_id) + assert weak_dict.get((task_id, False)) is None + + def test_span_delete_empty(self): + # ensure the helper works even if the Task doesn't have + # a propagation + @self.app.task + def fn_task(): + return 42 + + # delete the Span + exception = None + task_id = '7c6731af-9533-40c3-83a9-25b58f0d837f' + try: + detach_span(fn_task, task_id) + except Exception as e: + exception = e + assert exception is None + + def test_memory_leak_safety(self): + # Spans are shared between signals using a Dictionary (task_id -> span). + # This test ensures the GC correctly cleans finished spans. If this test + # fails a memory leak will happen for sure. + @self.app.task + def fn_task(): + return 42 + + # propagate and finish a Span for `fn_task` + task_id = '7c6731af-9533-40c3-83a9-25b58f0d837f' + attach_span(fn_task, task_id, self.tracer.trace('celery.run')) + weak_dict = getattr(fn_task, '__dd_task_span') + key = (task_id, False) + assert weak_dict.get(key) + # flush data and force the GC + weak_dict.get(key).finish() + self.tracer.writer.pop() + self.tracer.writer.pop_traces() + gc.collect() + assert weak_dict.get(key) is None + + def test_task_id_from_protocol_v1(self): + # ensures a `task_id` is properly returned when Protocol v1 is used. + # `context` is an example of an emitted Signal with Protocol v1 + context = { + 'body': { + 'expires': None, + 'utc': True, + 'args': ['user'], + 'chord': None, + 'callbacks': None, + 'errbacks': None, + 'taskset': None, + 'id': 'dffcaec1-dd92-4a1a-b3ab-d6512f4beeb7', + 'retries': 0, + 'task': 'tests.contrib.celery.test_integration.fn_task_parameters', + 'timelimit': (None, None), + 'eta': None, + 'kwargs': {'force_logout': True} + }, + 'sender': 'tests.contrib.celery.test_integration.fn_task_parameters', + 'exchange': 'celery', + 'routing_key': 'celery', + 'retry_policy': None, + 'headers': {}, + 'properties': {}, + } + + task_id = retrieve_task_id(context) + assert task_id == 'dffcaec1-dd92-4a1a-b3ab-d6512f4beeb7' + + def test_task_id_from_protocol_v2(self): + # ensures a `task_id` is properly returned when Protocol v2 is used. + # `context` is an example of an emitted Signal with Protocol v2 + context = { + 'body': ( + ['user'], + {'force_logout': True}, + {u'chord': None, u'callbacks': None, u'errbacks': None, u'chain': None}, + ), + 'sender': u'tests.contrib.celery.test_integration.fn_task_parameters', + 'exchange': u'', + 'routing_key': u'celery', + 'retry_policy': None, + 'headers': { + u'origin': u'gen83744@hostname', + u'root_id': '7e917b83-4018-431d-9832-73a28e1fb6c0', + u'expires': None, + u'shadow': None, + u'id': '7e917b83-4018-431d-9832-73a28e1fb6c0', + u'kwargsrepr': u"{'force_logout': True}", + u'lang': u'py', + u'retries': 0, + u'task': u'tests.contrib.celery.test_integration.fn_task_parameters', + u'group': None, + u'timelimit': [None, None], + u'parent_id': None, + u'argsrepr': u"['user']", + u'eta': None, + }, + 'properties': { + u'reply_to': 'c3054a07-5b28-3855-b18c-1623a24aaeca', + u'correlation_id': '7e917b83-4018-431d-9832-73a28e1fb6c0', + }, + } + + task_id = retrieve_task_id(context) + assert task_id == '7e917b83-4018-431d-9832-73a28e1fb6c0' diff --git a/tests/contrib/config.py b/tests/contrib/config.py new file mode 100644 index 0000000000..c69b9aa83b --- /dev/null +++ b/tests/contrib/config.py @@ -0,0 +1,74 @@ +""" +testing config. +""" + +import os + + +# default config for backing services +# NOTE: defaults may be duplicated in the .env file; update both or +# simply write down a function that parses the .env file + +ELASTICSEARCH_CONFIG = { + 'port': int(os.getenv('TEST_ELASTICSEARCH_PORT', 9200)), +} + +CASSANDRA_CONFIG = { + 'port': int(os.getenv('TEST_CASSANDRA_PORT', 9042)), +} + +CONSUL_CONFIG = { + 'host': '127.0.0.1', + 'port': int(os.getenv('TEST_CONSUL_PORT', 8500)), +} + +# Use host=127.0.0.1 since local docker testing breaks with localhost + +POSTGRES_CONFIG = { + 'host': '127.0.0.1', + 'port': int(os.getenv('TEST_POSTGRES_PORT', 5432)), + 'user': os.getenv('TEST_POSTGRES_USER', 'postgres'), + 'password': os.getenv('TEST_POSTGRES_PASSWORD', 'postgres'), + 'dbname': os.getenv('TEST_POSTGRES_DB', 'postgres'), +} + +MYSQL_CONFIG = { + 'host': '127.0.0.1', + 'port': int(os.getenv('TEST_MYSQL_PORT', 3306)), + 'user': os.getenv('TEST_MYSQL_USER', 'test'), + 'password': os.getenv('TEST_MYSQL_PASSWORD', 'test'), + 'database': os.getenv('TEST_MYSQL_DATABASE', 'test'), +} + +REDIS_CONFIG = { + 'port': int(os.getenv('TEST_REDIS_PORT', 6379)), +} + +REDISCLUSTER_CONFIG = { + 'host': '127.0.0.1', + 'ports': os.getenv('TEST_REDISCLUSTER_PORTS', '7000,7001,7002,7003,7004,7005'), +} + +MONGO_CONFIG = { + 'port': int(os.getenv('TEST_MONGO_PORT', 27017)), +} + +MEMCACHED_CONFIG = { + 'host': os.getenv('TEST_MEMCACHED_HOST', '127.0.0.1'), + 'port': int(os.getenv('TEST_MEMCACHED_PORT', 11211)), +} + +VERTICA_CONFIG = { + 'host': os.getenv('TEST_VERTICA_HOST', '127.0.0.1'), + 'port': os.getenv('TEST_VERTICA_PORT', 5433), + 'user': os.getenv('TEST_VERTICA_USER', 'dbadmin'), + 'password': os.getenv('TEST_VERTICA_PASSWORD', 'abc123'), + 'database': os.getenv('TEST_VERTICA_DATABASE', 'docker'), +} + +RABBITMQ_CONFIG = { + 'host': os.getenv('TEST_RABBITMQ_HOST', '127.0.0.1'), + 'user': os.getenv('TEST_RABBITMQ_USER', 'guest'), + 'password': os.getenv('TEST_RABBITMQ_PASSWORD', 'guest'), + 'port': int(os.getenv('TEST_RABBITMQ_PORT', 5672)), +} diff --git a/tests/contrib/consul/__init__.py b/tests/contrib/consul/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/consul/test.py b/tests/contrib/consul/test.py new file mode 100644 index 0000000000..b68f6b85ab --- /dev/null +++ b/tests/contrib/consul/test.py @@ -0,0 +1,170 @@ +import consul +from ddtrace import Pin +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.ext import consul as consulx +from ddtrace.vendor.wrapt import BoundFunctionWrapper +from ddtrace.contrib.consul.patch import patch, unpatch + +from ..config import CONSUL_CONFIG +from ...base import BaseTracerTestCase + + +class TestConsulPatch(BaseTracerTestCase): + + TEST_SERVICE = 'test-consul' + + def setUp(self): + super(TestConsulPatch, self).setUp() + patch() + c = consul.Consul( + host=CONSUL_CONFIG['host'], + port=CONSUL_CONFIG['port'], + ) + Pin.override(consul.Consul, service=self.TEST_SERVICE, tracer=self.tracer) + Pin.override(consul.Consul.KV, service=self.TEST_SERVICE, tracer=self.tracer) + self.c = c + + def tearDown(self): + unpatch() + super(TestConsulPatch, self).tearDown() + + def test_put(self): + key = 'test/put/consul' + value = 'test_value' + + self.c.kv.put(key, value) + + spans = self.get_spans() + assert len(spans) == 1 + span = spans[0] + assert span.service == self.TEST_SERVICE + assert span.name == consulx.CMD + assert span.resource == 'PUT' + assert span.error == 0 + tags = { + consulx.KEY: key, + consulx.CMD: 'PUT', + } + for k, v in tags.items(): + assert span.get_tag(k) == v + + def test_get(self): + key = 'test/get/consul' + + self.c.kv.get(key) + + spans = self.get_spans() + assert len(spans) == 1 + span = spans[0] + assert span.service == self.TEST_SERVICE + assert span.name == consulx.CMD + assert span.resource == 'GET' + assert span.error == 0 + tags = { + consulx.KEY: key, + consulx.CMD: 'GET', + } + for k, v in tags.items(): + assert span.get_tag(k) == v + + def test_delete(self): + key = 'test/delete/consul' + + self.c.kv.delete(key) + + spans = self.get_spans() + assert len(spans) == 1 + span = spans[0] + assert span.service == self.TEST_SERVICE + assert span.name == consulx.CMD + assert span.resource == 'DELETE' + assert span.error == 0 + tags = { + consulx.KEY: key, + consulx.CMD: 'DELETE', + } + for k, v in tags.items(): + assert span.get_tag(k) == v + + def test_kwargs(self): + key = 'test/kwargs/consul' + value = 'test_value' + + self.c.kv.put(key=key, value=value) + + spans = self.get_spans() + assert len(spans) == 1 + span = spans[0] + assert span.service == self.TEST_SERVICE + assert span.name == consulx.CMD + assert span.resource == 'PUT' + assert span.error == 0 + tags = { + consulx.KEY: key, + } + for k, v in tags.items(): + assert span.get_tag(k) == v + + def test_patch_idempotence(self): + key = 'test/patch/idempotence' + + patch() + patch() + + self.c.kv.get(key) + assert self.spans + assert isinstance(self.c.kv.get, BoundFunctionWrapper) + + unpatch() + self.reset() + + self.c.kv.get(key) + assert not self.spans + assert not isinstance(self.c.kv.get, BoundFunctionWrapper) + + def test_patch_preserves_functionality(self): + key = 'test/functionality' + value = b'test_value' + + self.c.kv.put(key, value) + _, data = self.c.kv.get(key) + assert data['Value'] == value + self.c.kv.delete(key) + _, data = self.c.kv.get(key) + assert data is None + + def test_analytics_without_rate(self): + with self.override_config('consul', {'analytics_enabled': True}): + key = 'test/kwargs/consul' + value = 'test_value' + + self.c.kv.put(key=key, value=value) + + spans = self.get_spans() + assert len(spans) == 1 + span = spans[0] + assert span.get_metric(ANALYTICS_SAMPLE_RATE_KEY) == 1.0 + + def test_analytics_with_rate(self): + with self.override_config('consul', {'analytics_enabled': True, 'analytics_sample_rate': 0.5}): + key = 'test/kwargs/consul' + value = 'test_value' + + self.c.kv.put(key=key, value=value) + + spans = self.get_spans() + assert len(spans) == 1 + span = spans[0] + assert span.get_metric(ANALYTICS_SAMPLE_RATE_KEY) == 0.5 + + def test_analytics_disabled(self): + with self.override_config('consul', {'analytics_enabled': False}): + key = 'test/kwargs/consul' + value = 'test_value' + + self.c.kv.put(key=key, value=value) + + spans = self.get_spans() + assert len(spans) == 1 + span = spans[0] + assert span.get_metric(ANALYTICS_SAMPLE_RATE_KEY) is None diff --git a/tests/contrib/dbapi/__init__.py b/tests/contrib/dbapi/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/dbapi/test_unit.py b/tests/contrib/dbapi/test_unit.py new file mode 100644 index 0000000000..18b78f6051 --- /dev/null +++ b/tests/contrib/dbapi/test_unit.py @@ -0,0 +1,523 @@ +import mock + +from ddtrace import Pin +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.contrib.dbapi import FetchTracedCursor, TracedCursor, TracedConnection +from ddtrace.span import Span +from ...base import BaseTracerTestCase + + +class TestTracedCursor(BaseTracerTestCase): + + def setUp(self): + super(TestTracedCursor, self).setUp() + self.cursor = mock.Mock() + + def test_execute_wrapped_is_called_and_returned(self): + cursor = self.cursor + cursor.rowcount = 0 + cursor.execute.return_value = '__result__' + + pin = Pin('pin_name', tracer=self.tracer) + traced_cursor = TracedCursor(cursor, pin) + # DEV: We always pass through the result + assert '__result__' == traced_cursor.execute('__query__', 'arg_1', kwarg1='kwarg1') + cursor.execute.assert_called_once_with('__query__', 'arg_1', kwarg1='kwarg1') + + def test_executemany_wrapped_is_called_and_returned(self): + cursor = self.cursor + cursor.rowcount = 0 + cursor.executemany.return_value = '__result__' + + pin = Pin('pin_name', tracer=self.tracer) + traced_cursor = TracedCursor(cursor, pin) + # DEV: We always pass through the result + assert '__result__' == traced_cursor.executemany('__query__', 'arg_1', kwarg1='kwarg1') + cursor.executemany.assert_called_once_with('__query__', 'arg_1', kwarg1='kwarg1') + + def test_fetchone_wrapped_is_called_and_returned(self): + cursor = self.cursor + cursor.rowcount = 0 + cursor.fetchone.return_value = '__result__' + pin = Pin('pin_name', tracer=self.tracer) + traced_cursor = TracedCursor(cursor, pin) + assert '__result__' == traced_cursor.fetchone('arg_1', kwarg1='kwarg1') + cursor.fetchone.assert_called_once_with('arg_1', kwarg1='kwarg1') + + def test_fetchall_wrapped_is_called_and_returned(self): + cursor = self.cursor + cursor.rowcount = 0 + cursor.fetchall.return_value = '__result__' + pin = Pin('pin_name', tracer=self.tracer) + traced_cursor = TracedCursor(cursor, pin) + assert '__result__' == traced_cursor.fetchall('arg_1', kwarg1='kwarg1') + cursor.fetchall.assert_called_once_with('arg_1', kwarg1='kwarg1') + + def test_fetchmany_wrapped_is_called_and_returned(self): + cursor = self.cursor + cursor.rowcount = 0 + cursor.fetchmany.return_value = '__result__' + pin = Pin('pin_name', tracer=self.tracer) + traced_cursor = TracedCursor(cursor, pin) + assert '__result__' == traced_cursor.fetchmany('arg_1', kwarg1='kwarg1') + cursor.fetchmany.assert_called_once_with('arg_1', kwarg1='kwarg1') + + def test_correct_span_names(self): + cursor = self.cursor + tracer = self.tracer + cursor.rowcount = 0 + pin = Pin('pin_name', tracer=tracer) + traced_cursor = TracedCursor(cursor, pin) + + traced_cursor.execute('arg_1', kwarg1='kwarg1') + self.assert_structure(dict(name='sql.query')) + self.reset() + + traced_cursor.executemany('arg_1', kwarg1='kwarg1') + self.assert_structure(dict(name='sql.query')) + self.reset() + + traced_cursor.callproc('arg_1', 'arg2') + self.assert_structure(dict(name='sql.query')) + self.reset() + + traced_cursor.fetchone('arg_1', kwarg1='kwarg1') + self.assert_has_no_spans() + + traced_cursor.fetchmany('arg_1', kwarg1='kwarg1') + self.assert_has_no_spans() + + traced_cursor.fetchall('arg_1', kwarg1='kwarg1') + self.assert_has_no_spans() + + def test_correct_span_names_can_be_overridden_by_pin(self): + cursor = self.cursor + tracer = self.tracer + cursor.rowcount = 0 + pin = Pin('pin_name', app='changed', tracer=tracer) + traced_cursor = TracedCursor(cursor, pin) + + traced_cursor.execute('arg_1', kwarg1='kwarg1') + self.assert_structure(dict(name='changed.query')) + self.reset() + + traced_cursor.executemany('arg_1', kwarg1='kwarg1') + self.assert_structure(dict(name='changed.query')) + self.reset() + + traced_cursor.callproc('arg_1', 'arg2') + self.assert_structure(dict(name='changed.query')) + self.reset() + + traced_cursor.fetchone('arg_1', kwarg1='kwarg1') + self.assert_has_no_spans() + + traced_cursor.fetchmany('arg_1', kwarg1='kwarg1') + self.assert_has_no_spans() + + traced_cursor.fetchall('arg_1', kwarg1='kwarg1') + self.assert_has_no_spans() + + def test_when_pin_disabled_then_no_tracing(self): + cursor = self.cursor + tracer = self.tracer + cursor.rowcount = 0 + cursor.execute.return_value = '__result__' + cursor.executemany.return_value = '__result__' + + tracer.enabled = False + pin = Pin('pin_name', tracer=tracer) + traced_cursor = TracedCursor(cursor, pin) + + assert '__result__' == traced_cursor.execute('arg_1', kwarg1='kwarg1') + assert len(tracer.writer.pop()) == 0 + + assert '__result__' == traced_cursor.executemany('arg_1', kwarg1='kwarg1') + assert len(tracer.writer.pop()) == 0 + + cursor.callproc.return_value = 'callproc' + assert 'callproc' == traced_cursor.callproc('arg_1', 'arg_2') + assert len(tracer.writer.pop()) == 0 + + cursor.fetchone.return_value = 'fetchone' + assert 'fetchone' == traced_cursor.fetchone('arg_1', 'arg_2') + assert len(tracer.writer.pop()) == 0 + + cursor.fetchmany.return_value = 'fetchmany' + assert 'fetchmany' == traced_cursor.fetchmany('arg_1', 'arg_2') + assert len(tracer.writer.pop()) == 0 + + cursor.fetchall.return_value = 'fetchall' + assert 'fetchall' == traced_cursor.fetchall('arg_1', 'arg_2') + assert len(tracer.writer.pop()) == 0 + + def test_span_info(self): + cursor = self.cursor + tracer = self.tracer + cursor.rowcount = 123 + pin = Pin('my_service', app='my_app', tracer=tracer, tags={'pin1': 'value_pin1'}) + traced_cursor = TracedCursor(cursor, pin) + + def method(): + pass + + traced_cursor._trace_method(method, 'my_name', 'my_resource', {'extra1': 'value_extra1'}) + span = tracer.writer.pop()[0] # type: Span + assert span.meta['pin1'] == 'value_pin1', 'Pin tags are preserved' + assert span.meta['extra1'] == 'value_extra1', 'Extra tags are merged into pin tags' + assert span.name == 'my_name', 'Span name is respected' + assert span.service == 'my_service', 'Service from pin' + assert span.resource == 'my_resource', 'Resource is respected' + assert span.span_type == 'sql', 'Span has the correct span type' + # Row count + assert span.get_metric('db.rowcount') == 123, 'Row count is set as a metric' + assert span.get_metric('sql.rows') == 123, 'Row count is set as a tag (for legacy django cursor replacement)' + + def test_django_traced_cursor_backward_compatibility(self): + cursor = self.cursor + tracer = self.tracer + # Django integration used to have its own TracedCursor implementation. When we replaced such custom + # implementation with the generic dbapi traced cursor, we had to make sure to add the tag 'sql.rows' that was + # set by the legacy replaced implementation. + cursor.rowcount = 123 + pin = Pin('my_service', app='my_app', tracer=tracer, tags={'pin1': 'value_pin1'}) + traced_cursor = TracedCursor(cursor, pin) + + def method(): + pass + + traced_cursor._trace_method(method, 'my_name', 'my_resource', {'extra1': 'value_extra1'}) + span = tracer.writer.pop()[0] # type: Span + # Row count + assert span.get_metric('db.rowcount') == 123, 'Row count is set as a metric' + assert span.get_metric('sql.rows') == 123, 'Row count is set as a tag (for legacy django cursor replacement)' + + def test_cursor_analytics_default(self): + cursor = self.cursor + cursor.rowcount = 0 + cursor.execute.return_value = '__result__' + + pin = Pin('pin_name', tracer=self.tracer) + traced_cursor = TracedCursor(cursor, pin) + # DEV: We always pass through the result + assert '__result__' == traced_cursor.execute('__query__', 'arg_1', kwarg1='kwarg1') + + span = self.tracer.writer.pop()[0] + self.assertIsNone(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + def test_cursor_analytics_with_rate(self): + with self.override_config( + 'dbapi2', + dict(analytics_enabled=True, analytics_sample_rate=0.5) + ): + cursor = self.cursor + cursor.rowcount = 0 + cursor.execute.return_value = '__result__' + + pin = Pin('pin_name', tracer=self.tracer) + traced_cursor = TracedCursor(cursor, pin) + # DEV: We always pass through the result + assert '__result__' == traced_cursor.execute('__query__', 'arg_1', kwarg1='kwarg1') + + span = self.tracer.writer.pop()[0] + self.assertEqual(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY), 0.5) + + def test_cursor_analytics_without_rate(self): + with self.override_config( + 'dbapi2', + dict(analytics_enabled=True) + ): + cursor = self.cursor + cursor.rowcount = 0 + cursor.execute.return_value = '__result__' + + pin = Pin('pin_name', tracer=self.tracer) + traced_cursor = TracedCursor(cursor, pin) + # DEV: We always pass through the result + assert '__result__' == traced_cursor.execute('__query__', 'arg_1', kwarg1='kwarg1') + + span = self.tracer.writer.pop()[0] + self.assertEqual(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY), 1.0) + + +class TestFetchTracedCursor(BaseTracerTestCase): + + def setUp(self): + super(TestFetchTracedCursor, self).setUp() + self.cursor = mock.Mock() + + def test_execute_wrapped_is_called_and_returned(self): + cursor = self.cursor + cursor.rowcount = 0 + cursor.execute.return_value = '__result__' + + pin = Pin('pin_name', tracer=self.tracer) + traced_cursor = FetchTracedCursor(cursor, pin) + assert '__result__' == traced_cursor.execute('__query__', 'arg_1', kwarg1='kwarg1') + cursor.execute.assert_called_once_with('__query__', 'arg_1', kwarg1='kwarg1') + + def test_executemany_wrapped_is_called_and_returned(self): + cursor = self.cursor + cursor.rowcount = 0 + cursor.executemany.return_value = '__result__' + + pin = Pin('pin_name', tracer=self.tracer) + traced_cursor = FetchTracedCursor(cursor, pin) + assert '__result__' == traced_cursor.executemany('__query__', 'arg_1', kwarg1='kwarg1') + cursor.executemany.assert_called_once_with('__query__', 'arg_1', kwarg1='kwarg1') + + def test_fetchone_wrapped_is_called_and_returned(self): + cursor = self.cursor + cursor.rowcount = 0 + cursor.fetchone.return_value = '__result__' + pin = Pin('pin_name', tracer=self.tracer) + traced_cursor = FetchTracedCursor(cursor, pin) + assert '__result__' == traced_cursor.fetchone('arg_1', kwarg1='kwarg1') + cursor.fetchone.assert_called_once_with('arg_1', kwarg1='kwarg1') + + def test_fetchall_wrapped_is_called_and_returned(self): + cursor = self.cursor + cursor.rowcount = 0 + cursor.fetchall.return_value = '__result__' + pin = Pin('pin_name', tracer=self.tracer) + traced_cursor = FetchTracedCursor(cursor, pin) + assert '__result__' == traced_cursor.fetchall('arg_1', kwarg1='kwarg1') + cursor.fetchall.assert_called_once_with('arg_1', kwarg1='kwarg1') + + def test_fetchmany_wrapped_is_called_and_returned(self): + cursor = self.cursor + cursor.rowcount = 0 + cursor.fetchmany.return_value = '__result__' + pin = Pin('pin_name', tracer=self.tracer) + traced_cursor = FetchTracedCursor(cursor, pin) + assert '__result__' == traced_cursor.fetchmany('arg_1', kwarg1='kwarg1') + cursor.fetchmany.assert_called_once_with('arg_1', kwarg1='kwarg1') + + def test_correct_span_names(self): + cursor = self.cursor + tracer = self.tracer + cursor.rowcount = 0 + pin = Pin('pin_name', tracer=tracer) + traced_cursor = FetchTracedCursor(cursor, pin) + + traced_cursor.execute('arg_1', kwarg1='kwarg1') + self.assert_structure(dict(name='sql.query')) + self.reset() + + traced_cursor.executemany('arg_1', kwarg1='kwarg1') + self.assert_structure(dict(name='sql.query')) + self.reset() + + traced_cursor.callproc('arg_1', 'arg2') + self.assert_structure(dict(name='sql.query')) + self.reset() + + traced_cursor.fetchone('arg_1', kwarg1='kwarg1') + self.assert_structure(dict(name='sql.query.fetchone')) + self.reset() + + traced_cursor.fetchmany('arg_1', kwarg1='kwarg1') + self.assert_structure(dict(name='sql.query.fetchmany')) + self.reset() + + traced_cursor.fetchall('arg_1', kwarg1='kwarg1') + self.assert_structure(dict(name='sql.query.fetchall')) + self.reset() + + def test_correct_span_names_can_be_overridden_by_pin(self): + cursor = self.cursor + tracer = self.tracer + cursor.rowcount = 0 + pin = Pin('pin_name', app='changed', tracer=tracer) + traced_cursor = FetchTracedCursor(cursor, pin) + + traced_cursor.execute('arg_1', kwarg1='kwarg1') + self.assert_structure(dict(name='changed.query')) + self.reset() + + traced_cursor.executemany('arg_1', kwarg1='kwarg1') + self.assert_structure(dict(name='changed.query')) + self.reset() + + traced_cursor.callproc('arg_1', 'arg2') + self.assert_structure(dict(name='changed.query')) + self.reset() + + traced_cursor.fetchone('arg_1', kwarg1='kwarg1') + self.assert_structure(dict(name='changed.query.fetchone')) + self.reset() + + traced_cursor.fetchmany('arg_1', kwarg1='kwarg1') + self.assert_structure(dict(name='changed.query.fetchmany')) + self.reset() + + traced_cursor.fetchall('arg_1', kwarg1='kwarg1') + self.assert_structure(dict(name='changed.query.fetchall')) + self.reset() + + def test_when_pin_disabled_then_no_tracing(self): + cursor = self.cursor + tracer = self.tracer + cursor.rowcount = 0 + cursor.execute.return_value = '__result__' + cursor.executemany.return_value = '__result__' + + tracer.enabled = False + pin = Pin('pin_name', tracer=tracer) + traced_cursor = FetchTracedCursor(cursor, pin) + + assert '__result__' == traced_cursor.execute('arg_1', kwarg1='kwarg1') + assert len(tracer.writer.pop()) == 0 + + assert '__result__' == traced_cursor.executemany('arg_1', kwarg1='kwarg1') + assert len(tracer.writer.pop()) == 0 + + cursor.callproc.return_value = 'callproc' + assert 'callproc' == traced_cursor.callproc('arg_1', 'arg_2') + assert len(tracer.writer.pop()) == 0 + + cursor.fetchone.return_value = 'fetchone' + assert 'fetchone' == traced_cursor.fetchone('arg_1', 'arg_2') + assert len(tracer.writer.pop()) == 0 + + cursor.fetchmany.return_value = 'fetchmany' + assert 'fetchmany' == traced_cursor.fetchmany('arg_1', 'arg_2') + assert len(tracer.writer.pop()) == 0 + + cursor.fetchall.return_value = 'fetchall' + assert 'fetchall' == traced_cursor.fetchall('arg_1', 'arg_2') + assert len(tracer.writer.pop()) == 0 + + def test_span_info(self): + cursor = self.cursor + tracer = self.tracer + cursor.rowcount = 123 + pin = Pin('my_service', app='my_app', tracer=tracer, tags={'pin1': 'value_pin1'}) + traced_cursor = FetchTracedCursor(cursor, pin) + + def method(): + pass + + traced_cursor._trace_method(method, 'my_name', 'my_resource', {'extra1': 'value_extra1'}) + span = tracer.writer.pop()[0] # type: Span + assert span.meta['pin1'] == 'value_pin1', 'Pin tags are preserved' + assert span.meta['extra1'] == 'value_extra1', 'Extra tags are merged into pin tags' + assert span.name == 'my_name', 'Span name is respected' + assert span.service == 'my_service', 'Service from pin' + assert span.resource == 'my_resource', 'Resource is respected' + assert span.span_type == 'sql', 'Span has the correct span type' + # Row count + assert span.get_metric('db.rowcount') == 123, 'Row count is set as a metric' + assert span.get_metric('sql.rows') == 123, 'Row count is set as a tag (for legacy django cursor replacement)' + + def test_django_traced_cursor_backward_compatibility(self): + cursor = self.cursor + tracer = self.tracer + # Django integration used to have its own FetchTracedCursor implementation. When we replaced such custom + # implementation with the generic dbapi traced cursor, we had to make sure to add the tag 'sql.rows' that was + # set by the legacy replaced implementation. + cursor.rowcount = 123 + pin = Pin('my_service', app='my_app', tracer=tracer, tags={'pin1': 'value_pin1'}) + traced_cursor = FetchTracedCursor(cursor, pin) + + def method(): + pass + + traced_cursor._trace_method(method, 'my_name', 'my_resource', {'extra1': 'value_extra1'}) + span = tracer.writer.pop()[0] # type: Span + # Row count + assert span.get_metric('db.rowcount') == 123, 'Row count is set as a metric' + assert span.get_metric('sql.rows') == 123, 'Row count is set as a tag (for legacy django cursor replacement)' + + def test_fetch_no_analytics(self): + """ Confirm fetch* methods do not have analytics sample rate metric """ + with self.override_config( + 'dbapi2', + dict(analytics_enabled=True) + ): + cursor = self.cursor + cursor.rowcount = 0 + cursor.fetchone.return_value = '__result__' + pin = Pin('pin_name', tracer=self.tracer) + traced_cursor = FetchTracedCursor(cursor, pin) + assert '__result__' == traced_cursor.fetchone('arg_1', kwarg1='kwarg1') + + span = self.tracer.writer.pop()[0] + self.assertIsNone(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + cursor = self.cursor + cursor.rowcount = 0 + cursor.fetchall.return_value = '__result__' + pin = Pin('pin_name', tracer=self.tracer) + traced_cursor = FetchTracedCursor(cursor, pin) + assert '__result__' == traced_cursor.fetchall('arg_1', kwarg1='kwarg1') + + span = self.tracer.writer.pop()[0] + self.assertIsNone(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + cursor = self.cursor + cursor.rowcount = 0 + cursor.fetchmany.return_value = '__result__' + pin = Pin('pin_name', tracer=self.tracer) + traced_cursor = FetchTracedCursor(cursor, pin) + assert '__result__' == traced_cursor.fetchmany('arg_1', kwarg1='kwarg1') + + span = self.tracer.writer.pop()[0] + self.assertIsNone(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + +class TestTracedConnection(BaseTracerTestCase): + def setUp(self): + super(TestTracedConnection, self).setUp() + self.connection = mock.Mock() + + def test_cursor_class(self): + pin = Pin('pin_name', tracer=self.tracer) + + # Default + traced_connection = TracedConnection(self.connection, pin=pin) + self.assertTrue(traced_connection._self_cursor_cls is TracedCursor) + + # Trace fetched methods + with self.override_config('dbapi2', dict(trace_fetch_methods=True)): + traced_connection = TracedConnection(self.connection, pin=pin) + self.assertTrue(traced_connection._self_cursor_cls is FetchTracedCursor) + + # Manually provided cursor class + with self.override_config('dbapi2', dict(trace_fetch_methods=True)): + traced_connection = TracedConnection(self.connection, pin=pin, cursor_cls=TracedCursor) + self.assertTrue(traced_connection._self_cursor_cls is TracedCursor) + + def test_commit_is_traced(self): + connection = self.connection + tracer = self.tracer + connection.commit.return_value = None + pin = Pin('pin_name', tracer=tracer) + traced_connection = TracedConnection(connection, pin) + traced_connection.commit() + assert tracer.writer.pop()[0].name == 'mock.connection.commit' + connection.commit.assert_called_with() + + def test_rollback_is_traced(self): + connection = self.connection + tracer = self.tracer + connection.rollback.return_value = None + pin = Pin('pin_name', tracer=tracer) + traced_connection = TracedConnection(connection, pin) + traced_connection.rollback() + assert tracer.writer.pop()[0].name == 'mock.connection.rollback' + connection.rollback.assert_called_with() + + def test_connection_analytics_with_rate(self): + with self.override_config( + 'dbapi2', + dict(analytics_enabled=True, analytics_sample_rate=0.5) + ): + connection = self.connection + tracer = self.tracer + connection.commit.return_value = None + pin = Pin('pin_name', tracer=tracer) + traced_connection = TracedConnection(connection, pin) + traced_connection.commit() + span = tracer.writer.pop()[0] + self.assertIsNone(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) diff --git a/tests/contrib/django/__init__.py b/tests/contrib/django/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/django/app/__init__.py b/tests/contrib/django/app/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/django/app/middlewares.py b/tests/contrib/django/app/middlewares.py new file mode 100644 index 0000000000..c316997291 --- /dev/null +++ b/tests/contrib/django/app/middlewares.py @@ -0,0 +1,36 @@ +from django.http import HttpResponse + +try: + from django.utils.deprecation import MiddlewareMixin + MiddlewareClass = MiddlewareMixin +except ImportError: + MiddlewareClass = object + + +class CatchExceptionMiddleware(MiddlewareClass): + def process_exception(self, request, exception): + return HttpResponse(status=500) + + +class HandleErrorMiddlewareSuccess(MiddlewareClass): + """ Converts an HttpError (that may be returned from an exception handler) + generated by a view or previous middleware and returns a 200 + HttpResponse. + """ + def process_response(self, request, response): + if response.status_code == 500: + return HttpResponse(status=200) + + return response + + +class HandleErrorMiddlewareClientError(MiddlewareClass): + """ Converts an HttpError (that may be returned from an exception handler) + generated by a view or previous middleware and returns a 404 + HttpResponse. + """ + def process_response(self, request, response): + if response.status_code == 500: + return HttpResponse(status=404) + + return response diff --git a/tests/contrib/django/app/settings.py b/tests/contrib/django/app/settings.py new file mode 100644 index 0000000000..b17e604e49 --- /dev/null +++ b/tests/contrib/django/app/settings.py @@ -0,0 +1,132 @@ +""" +Settings configuration for the Django web framework. Update this +configuration if you need to change the default behavior of +Django during tests +""" +import os +import django + + +BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__))) + +DATABASES = { + 'default': { + 'ENGINE': 'django.db.backends.sqlite3', + 'NAME': ':memory:' + } +} + +CACHES = { + 'default': { + 'BACKEND': 'django.core.cache.backends.locmem.LocMemCache', + 'LOCATION': 'unique-snowflake', + }, + 'redis': { + 'BACKEND': 'django_redis.cache.RedisCache', + 'LOCATION': 'redis://127.0.0.1:6379/1', + }, + 'pylibmc': { + 'BACKEND': 'django.core.cache.backends.memcached.PyLibMCCache', + 'LOCATION': '127.0.0.1:11211', + }, + 'python_memcached': { + 'BACKEND': 'django.core.cache.backends.memcached.MemcachedCache', + 'LOCATION': '127.0.0.1:11211', + }, + 'django_pylibmc': { + 'BACKEND': 'django_pylibmc.memcached.PyLibMCCache', + 'LOCATION': '127.0.0.1:11211', + 'BINARY': True, + 'OPTIONS': { + 'tcp_nodelay': True, + 'ketama': True + } + }, +} + +SITE_ID = 1 +SECRET_KEY = 'not_very_secret_in_tests' +USE_I18N = True +USE_L10N = True +STATIC_URL = '/static/' +ROOT_URLCONF = 'tests.contrib.django.app.views' + +TEMPLATES = [ + { + 'BACKEND': 'django.template.backends.django.DjangoTemplates', + 'DIRS': [ + os.path.join(BASE_DIR, 'app', 'templates'), + ], + 'APP_DIRS': True, + 'OPTIONS': { + 'context_processors': [ + 'django.template.context_processors.debug', + 'django.template.context_processors.request', + 'django.contrib.auth.context_processors.auth', + 'django.contrib.messages.context_processors.messages', + ], + }, + }, +] + +if (1, 10) <= django.VERSION < (2, 0): + MIDDLEWARE = [ + 'django.contrib.sessions.middleware.SessionMiddleware', + 'django.middleware.common.CommonMiddleware', + 'django.middleware.csrf.CsrfViewMiddleware', + 'django.contrib.auth.middleware.AuthenticationMiddleware', + 'django.contrib.auth.middleware.SessionAuthenticationMiddleware', + 'django.contrib.messages.middleware.MessageMiddleware', + 'django.middleware.clickjacking.XFrameOptionsMiddleware', + 'django.middleware.security.SecurityMiddleware', + + 'tests.contrib.django.app.middlewares.CatchExceptionMiddleware', + ] + +# Django 2.0 has different defaults +elif django.VERSION >= (2, 0): + MIDDLEWARE = [ + 'django.contrib.sessions.middleware.SessionMiddleware', + 'django.middleware.common.CommonMiddleware', + 'django.middleware.csrf.CsrfViewMiddleware', + 'django.contrib.auth.middleware.AuthenticationMiddleware', + 'django.contrib.messages.middleware.MessageMiddleware', + 'django.middleware.clickjacking.XFrameOptionsMiddleware', + 'django.middleware.security.SecurityMiddleware', + + 'tests.contrib.django.app.middlewares.CatchExceptionMiddleware', + ] + +# Pre 1.10 style +else: + MIDDLEWARE_CLASSES = [ + 'django.contrib.sessions.middleware.SessionMiddleware', + 'django.middleware.common.CommonMiddleware', + 'django.middleware.csrf.CsrfViewMiddleware', + 'django.contrib.auth.middleware.AuthenticationMiddleware', + 'django.contrib.auth.middleware.SessionAuthenticationMiddleware', + 'django.contrib.messages.middleware.MessageMiddleware', + 'django.middleware.clickjacking.XFrameOptionsMiddleware', + 'django.middleware.security.SecurityMiddleware', + + 'tests.contrib.django.app.middlewares.CatchExceptionMiddleware', + ] + +INSTALLED_APPS = [ + 'django.contrib.admin', + 'django.contrib.auth', + 'django.contrib.contenttypes', + 'django.contrib.sessions', + + # tracer app + 'ddtrace.contrib.django', +] + +DATADOG_TRACE = { + # tracer with a DummyWriter + 'TRACER': 'tests.contrib.django.utils.tracer', + 'ENABLED': True, + 'TAGS': { + 'env': 'test', + }, +} diff --git a/tests/contrib/django/app/settings_untraced.py b/tests/contrib/django/app/settings_untraced.py new file mode 100644 index 0000000000..eb9f878b85 --- /dev/null +++ b/tests/contrib/django/app/settings_untraced.py @@ -0,0 +1,106 @@ +""" +Settings configuration for the Django web framework. Update this +configuration if you need to change the default behavior of +Django during tests +""" +import os + + +BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__))) + +DATABASES = { + 'default': { + 'ENGINE': 'django.db.backends.sqlite3', + 'NAME': ':memory:' + } +} + +CACHES = { + 'default': { + 'BACKEND': 'django.core.cache.backends.locmem.LocMemCache', + 'LOCATION': 'unique-snowflake', + }, + 'redis': { + 'BACKEND': 'django_redis.cache.RedisCache', + 'LOCATION': 'redis://127.0.0.1:6379/1', + }, + 'pylibmc': { + 'BACKEND': 'django.core.cache.backends.memcached.PyLibMCCache', + 'LOCATION': '127.0.0.1:11211', + }, + 'python_memcached': { + 'BACKEND': 'django.core.cache.backends.memcached.MemcachedCache', + 'LOCATION': '127.0.0.1:11211', + }, + 'django_pylibmc': { + 'BACKEND': 'django_pylibmc.memcached.PyLibMCCache', + 'LOCATION': '127.0.0.1:11211', + 'BINARY': True, + 'OPTIONS': { + 'tcp_nodelay': True, + 'ketama': True + } + }, +} + +SITE_ID = 1 +SECRET_KEY = 'not_very_secret_in_tests' +USE_I18N = True +USE_L10N = True +STATIC_URL = '/static/' +ROOT_URLCONF = 'tests.contrib.django.app.views' + +TEMPLATES = [ + { + 'BACKEND': 'django.template.backends.django.DjangoTemplates', + 'DIRS': [ + os.path.join(BASE_DIR, 'app', 'templates'), + ], + 'APP_DIRS': True, + 'OPTIONS': { + 'context_processors': [ + 'django.template.context_processors.debug', + 'django.template.context_processors.request', + 'django.contrib.auth.context_processors.auth', + 'django.contrib.messages.context_processors.messages', + ], + }, + }, +] + +# 1.10+ style +MIDDLEWARE = [ + 'django.contrib.sessions.middleware.SessionMiddleware', + 'django.middleware.common.CommonMiddleware', + 'django.middleware.csrf.CsrfViewMiddleware', + 'django.contrib.auth.middleware.AuthenticationMiddleware', + 'django.contrib.auth.middleware.SessionAuthenticationMiddleware', + 'django.contrib.messages.middleware.MessageMiddleware', + 'django.middleware.clickjacking.XFrameOptionsMiddleware', + 'django.middleware.security.SecurityMiddleware', +] + +# Pre 1.10 style +MIDDLEWARE_CLASSES = [ + 'django.contrib.sessions.middleware.SessionMiddleware', + 'django.middleware.common.CommonMiddleware', + 'django.middleware.csrf.CsrfViewMiddleware', + 'django.contrib.auth.middleware.AuthenticationMiddleware', + 'django.contrib.auth.middleware.SessionAuthenticationMiddleware', + 'django.contrib.messages.middleware.MessageMiddleware', + 'django.middleware.clickjacking.XFrameOptionsMiddleware', + 'django.middleware.security.SecurityMiddleware', +] + +INSTALLED_APPS = [ + 'django.contrib.admin', + 'django.contrib.auth', + 'django.contrib.contenttypes', + 'django.contrib.sessions', +] + +DATADOG_TRACE = { + # tracer with a DummyWriter + 'TRACER': 'tests.contrib.django.utils.tracer', + 'ENABLED': True, +} diff --git a/tests/contrib/django/app/templates/cached_list.html b/tests/contrib/django/app/templates/cached_list.html new file mode 100644 index 0000000000..b36c1c6829 --- /dev/null +++ b/tests/contrib/django/app/templates/cached_list.html @@ -0,0 +1,7 @@ +{% load cache %} + +{% cache 60 users_list %} + {% for user in object_list %} + {{ user }} + {% endfor %} +{% endcache %} diff --git a/tests/contrib/django/app/templates/users_list.html b/tests/contrib/django/app/templates/users_list.html new file mode 100644 index 0000000000..8661f5e6ee --- /dev/null +++ b/tests/contrib/django/app/templates/users_list.html @@ -0,0 +1,3 @@ +{% for user in object_list %} + {{ user }} +{% endfor %} diff --git a/tests/contrib/django/app/views.py b/tests/contrib/django/app/views.py new file mode 100644 index 0000000000..8e570a536b --- /dev/null +++ b/tests/contrib/django/app/views.py @@ -0,0 +1,74 @@ +""" +Class based views used for Django tests. +""" + +from functools import partial + +from django.http import HttpResponse +from django.conf.urls import url + +from django.views.generic import ListView, TemplateView +from django.views.decorators.cache import cache_page + +from django.contrib.auth.models import User +from django.contrib.syndication.views import Feed + + +class UserList(ListView): + model = User + template_name = 'users_list.html' + + +class TemplateCachedUserList(ListView): + model = User + template_name = 'cached_list.html' + + +class ForbiddenView(TemplateView): + def get(self, request, *args, **kwargs): + return HttpResponse(status=403) + + +def function_view(request): + return HttpResponse(status=200) + + +def error_500(request): + raise Exception('Error 500') + + +class FeedView(Feed): + """ + A callable view that is part of the Django framework + """ + title = 'Police beat site news' + link = '/sitenews/' + description = 'Updates on changes and additions to police beat central.' + + def items(self): + return [] + + def item_title(self, item): + return 'empty' + + def item_description(self, item): + return 'empty' + + +partial_view = partial(function_view) + +# disabling flake8 test below, yes, declaring a func like this is bad, we know +lambda_view = lambda request: function_view(request) # NOQA + +# use this url patterns for tests +urlpatterns = [ + url(r'^users/$', UserList.as_view(), name='users-list'), + url(r'^cached-template/$', TemplateCachedUserList.as_view(), name='cached-template-list'), + url(r'^cached-users/$', cache_page(60)(UserList.as_view()), name='cached-users-list'), + url(r'^fail-view/$', ForbiddenView.as_view(), name='forbidden-view'), + url(r'^fn-view/$', function_view, name='fn-view'), + url(r'^feed-view/$', FeedView(), name='feed-view'), + url(r'^partial-view/$', partial_view, name='partial-view'), + url(r'^lambda-view/$', lambda_view, name='lambda-view'), + url(r'^error-500/$', error_500, name='error-500'), +] diff --git a/tests/contrib/django/compat.py b/tests/contrib/django/compat.py new file mode 100644 index 0000000000..c591277ff7 --- /dev/null +++ b/tests/contrib/django/compat.py @@ -0,0 +1,6 @@ +__all__ = ['reverse'] + +try: + from django.core.urlresolvers import reverse +except ImportError: + from django.urls import reverse diff --git a/tests/contrib/django/conftest.py b/tests/contrib/django/conftest.py new file mode 100644 index 0000000000..37511609f7 --- /dev/null +++ b/tests/contrib/django/conftest.py @@ -0,0 +1,16 @@ +import os +import django +from django.conf import settings + +# We manually designate which settings we will be using in an environment variable +# This is similar to what occurs in the `manage.py` +os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'tests.contrib.django.app.settings') + + +# `pytest` automatically calls this function once when tests are run. +def pytest_configure(): + settings.DEBUG = False + if django.VERSION < (1, 7, 0): + settings.configure() + else: + django.setup() diff --git a/tests/contrib/django/runtests.py b/tests/contrib/django/runtests.py new file mode 100755 index 0000000000..0ece0b6956 --- /dev/null +++ b/tests/contrib/django/runtests.py @@ -0,0 +1,18 @@ +#!/usr/bin/env python +import os +import sys + + +if __name__ == '__main__': + # define django defaults + app_to_test = 'tests/contrib/django' + + # append the project root to the PYTHONPATH: + # this is required because we don't want to put the current file + # in the project_root + current_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__))) + project_root = os.path.join(current_dir, '..', '..') + sys.path.append(project_root) + + from django.core.management import execute_from_command_line + execute_from_command_line([sys.argv[0], 'test', app_to_test]) diff --git a/tests/contrib/django/test_autopatching.py b/tests/contrib/django/test_autopatching.py new file mode 100644 index 0000000000..270bdd2573 --- /dev/null +++ b/tests/contrib/django/test_autopatching.py @@ -0,0 +1,98 @@ +import django + +from ddtrace.monkey import patch +from .utils import DjangoTraceTestCase +from django.conf import settings +from unittest import skipIf + + +class DjangoAutopatchTest(DjangoTraceTestCase): + def setUp(self): + super(DjangoAutopatchTest, self).setUp() + patch(django=True) + django.setup() + + @skipIf(django.VERSION >= (1, 10), 'skip if version above 1.10') + def test_autopatching_middleware_classes(self): + assert django._datadog_patch + assert 'ddtrace.contrib.django' in settings.INSTALLED_APPS + assert settings.MIDDLEWARE_CLASSES[0] == 'ddtrace.contrib.django.TraceMiddleware' + assert settings.MIDDLEWARE_CLASSES[-1] == 'ddtrace.contrib.django.TraceExceptionMiddleware' + + @skipIf(django.VERSION >= (1, 10), 'skip if version above 1.10') + def test_autopatching_twice_middleware_classes(self): + assert django._datadog_patch + # Call django.setup() twice and ensure we don't add a duplicate tracer + django.setup() + + found_app = settings.INSTALLED_APPS.count('ddtrace.contrib.django') + assert found_app == 1 + + assert settings.MIDDLEWARE_CLASSES[0] == 'ddtrace.contrib.django.TraceMiddleware' + assert settings.MIDDLEWARE_CLASSES[-1] == 'ddtrace.contrib.django.TraceExceptionMiddleware' + + found_mw = settings.MIDDLEWARE_CLASSES.count('ddtrace.contrib.django.TraceMiddleware') + assert found_mw == 1 + found_mw = settings.MIDDLEWARE_CLASSES.count('ddtrace.contrib.django.TraceExceptionMiddleware') + assert found_mw == 1 + + @skipIf(django.VERSION < (1, 10), 'skip if version is below 1.10') + def test_autopatching_middleware(self): + assert django._datadog_patch + assert 'ddtrace.contrib.django' in settings.INSTALLED_APPS + assert settings.MIDDLEWARE[0] == 'ddtrace.contrib.django.TraceMiddleware' + # MIDDLEWARE_CLASSES gets created internally in django 1.10 & 1.11 but doesn't + # exist at all in 2.0. + assert not getattr(settings, 'MIDDLEWARE_CLASSES', None) or \ + 'ddtrace.contrib.django.TraceMiddleware' \ + not in settings.MIDDLEWARE_CLASSES + assert settings.MIDDLEWARE[-1] == 'ddtrace.contrib.django.TraceExceptionMiddleware' + assert not getattr(settings, 'MIDDLEWARE_CLASSES', None) or \ + 'ddtrace.contrib.django.TraceExceptionMiddleware' \ + not in settings.MIDDLEWARE_CLASSES + + @skipIf(django.VERSION < (1, 10), 'skip if version is below 1.10') + def test_autopatching_twice_middleware(self): + assert django._datadog_patch + # Call django.setup() twice and ensure we don't add a duplicate tracer + django.setup() + + found_app = settings.INSTALLED_APPS.count('ddtrace.contrib.django') + assert found_app == 1 + + assert settings.MIDDLEWARE[0] == 'ddtrace.contrib.django.TraceMiddleware' + # MIDDLEWARE_CLASSES gets created internally in django 1.10 & 1.11 but doesn't + # exist at all in 2.0. + assert not getattr(settings, 'MIDDLEWARE_CLASSES', None) or \ + 'ddtrace.contrib.django.TraceMiddleware' \ + not in settings.MIDDLEWARE_CLASSES + assert settings.MIDDLEWARE[-1] == 'ddtrace.contrib.django.TraceExceptionMiddleware' + assert not getattr(settings, 'MIDDLEWARE_CLASSES', None) or \ + 'ddtrace.contrib.django.TraceExceptionMiddleware' \ + not in settings.MIDDLEWARE_CLASSES + + found_mw = settings.MIDDLEWARE.count('ddtrace.contrib.django.TraceMiddleware') + assert found_mw == 1 + + found_mw = settings.MIDDLEWARE.count('ddtrace.contrib.django.TraceExceptionMiddleware') + assert found_mw == 1 + + +class DjangoAutopatchCustomMiddlewareTest(DjangoTraceTestCase): + @skipIf(django.VERSION < (1, 10), 'skip if version is below 1.10') + def test_autopatching_empty_middleware(self): + with self.settings(MIDDLEWARE=[]): + patch(django=True) + django.setup() + assert django._datadog_patch + assert 'ddtrace.contrib.django' in settings.INSTALLED_APPS + assert settings.MIDDLEWARE[0] == 'ddtrace.contrib.django.TraceMiddleware' + # MIDDLEWARE_CLASSES gets created internally in django 1.10 & 1.11 but doesn't + # exist at all in 2.0. + assert not getattr(settings, 'MIDDLEWARE_CLASSES', None) or \ + 'ddtrace.contrib.django.TraceMiddleware' \ + not in settings.MIDDLEWARE_CLASSES + assert settings.MIDDLEWARE[-1] == 'ddtrace.contrib.django.TraceExceptionMiddleware' + assert not getattr(settings, 'MIDDLEWARE_CLASSES', None) or \ + 'ddtrace.contrib.django.TraceExceptionMiddleware' \ + not in settings.MIDDLEWARE_CLASSES diff --git a/tests/contrib/django/test_cache_backends.py b/tests/contrib/django/test_cache_backends.py new file mode 100644 index 0000000000..c0cf349090 --- /dev/null +++ b/tests/contrib/django/test_cache_backends.py @@ -0,0 +1,246 @@ +import time + +# 3rd party +from django.core.cache import caches + +# testing +from .utils import DjangoTraceTestCase +from ...util import assert_dict_issuperset + + +class DjangoCacheRedisTest(DjangoTraceTestCase): + """ + Ensures that the cache system is properly traced in + different cache backend + """ + def test_cache_redis_get(self): + # get the redis cache + cache = caches['redis'] + + # (trace) the cache miss + start = time.time() + cache.get('missing_key') + end = time.time() + + # tests + spans = self.tracer.writer.pop() + assert len(spans) == 1 + + span = spans[0] + assert span.service == 'django' + assert span.resource == 'get' + assert span.name == 'django.cache' + assert span.span_type == 'cache' + assert span.error == 0 + + expected_meta = { + 'django.cache.backend': 'django_redis.cache.RedisCache', + 'django.cache.key': 'missing_key', + 'env': 'test', + } + + assert_dict_issuperset(span.meta, expected_meta) + assert start < span.start < span.start + span.duration < end + + def test_cache_redis_get_many(self): + # get the redis cache + cache = caches['redis'] + + # (trace) the cache miss + start = time.time() + cache.get_many(['missing_key', 'another_key']) + end = time.time() + + # tests + spans = self.tracer.writer.pop() + assert len(spans) == 1 + + span = spans[0] + assert span.service == 'django' + assert span.resource == 'get_many' + assert span.name == 'django.cache' + assert span.span_type == 'cache' + assert span.error == 0 + + expected_meta = { + 'django.cache.backend': 'django_redis.cache.RedisCache', + 'django.cache.key': str(['missing_key', 'another_key']), + 'env': 'test', + } + + assert_dict_issuperset(span.meta, expected_meta) + assert start < span.start < span.start + span.duration < end + + def test_cache_pylibmc_get(self): + # get the redis cache + cache = caches['pylibmc'] + + # (trace) the cache miss + start = time.time() + cache.get('missing_key') + end = time.time() + + # tests + spans = self.tracer.writer.pop() + assert len(spans) == 1 + + span = spans[0] + assert span.service == 'django' + assert span.resource == 'get' + assert span.name == 'django.cache' + assert span.span_type == 'cache' + assert span.error == 0 + + expected_meta = { + 'django.cache.backend': 'django.core.cache.backends.memcached.PyLibMCCache', + 'django.cache.key': 'missing_key', + 'env': 'test', + } + + assert_dict_issuperset(span.meta, expected_meta) + assert start < span.start < span.start + span.duration < end + + def test_cache_pylibmc_get_many(self): + # get the redis cache + cache = caches['pylibmc'] + + # (trace) the cache miss + start = time.time() + cache.get_many(['missing_key', 'another_key']) + end = time.time() + + # tests + spans = self.tracer.writer.pop() + assert len(spans) == 1 + + span = spans[0] + assert span.service == 'django' + assert span.resource == 'get_many' + assert span.name == 'django.cache' + assert span.span_type == 'cache' + assert span.error == 0 + + expected_meta = { + 'django.cache.backend': 'django.core.cache.backends.memcached.PyLibMCCache', + 'django.cache.key': str(['missing_key', 'another_key']), + 'env': 'test', + } + + assert_dict_issuperset(span.meta, expected_meta) + assert start < span.start < span.start + span.duration < end + + def test_cache_memcached_get(self): + # get the redis cache + cache = caches['python_memcached'] + + # (trace) the cache miss + start = time.time() + cache.get('missing_key') + end = time.time() + + # tests + spans = self.tracer.writer.pop() + assert len(spans) == 1 + + span = spans[0] + assert span.service == 'django' + assert span.resource == 'get' + assert span.name == 'django.cache' + assert span.span_type == 'cache' + assert span.error == 0 + + expected_meta = { + 'django.cache.backend': 'django.core.cache.backends.memcached.MemcachedCache', + 'django.cache.key': 'missing_key', + 'env': 'test', + } + + assert_dict_issuperset(span.meta, expected_meta) + assert start < span.start < span.start + span.duration < end + + def test_cache_memcached_get_many(self): + # get the redis cache + cache = caches['python_memcached'] + + # (trace) the cache miss + start = time.time() + cache.get_many(['missing_key', 'another_key']) + end = time.time() + + # tests + spans = self.tracer.writer.pop() + assert len(spans) == 1 + + span = spans[0] + assert span.service == 'django' + assert span.resource == 'get_many' + assert span.name == 'django.cache' + assert span.span_type == 'cache' + assert span.error == 0 + + expected_meta = { + 'django.cache.backend': 'django.core.cache.backends.memcached.MemcachedCache', + 'django.cache.key': str(['missing_key', 'another_key']), + 'env': 'test', + } + + assert_dict_issuperset(span.meta, expected_meta) + assert start < span.start < span.start + span.duration < end + + def test_cache_django_pylibmc_get(self): + # get the redis cache + cache = caches['django_pylibmc'] + + # (trace) the cache miss + start = time.time() + cache.get('missing_key') + end = time.time() + + # tests + spans = self.tracer.writer.pop() + assert len(spans) == 1 + + span = spans[0] + assert span.service == 'django' + assert span.resource == 'get' + assert span.name == 'django.cache' + assert span.span_type == 'cache' + assert span.error == 0 + + expected_meta = { + 'django.cache.backend': 'django_pylibmc.memcached.PyLibMCCache', + 'django.cache.key': 'missing_key', + 'env': 'test', + } + + assert_dict_issuperset(span.meta, expected_meta) + assert start < span.start < span.start + span.duration < end + + def test_cache_django_pylibmc_get_many(self): + # get the redis cache + cache = caches['django_pylibmc'] + + # (trace) the cache miss + start = time.time() + cache.get_many(['missing_key', 'another_key']) + end = time.time() + + # tests + spans = self.tracer.writer.pop() + assert len(spans) == 1 + + span = spans[0] + assert span.service == 'django' + assert span.resource == 'get_many' + assert span.name == 'django.cache' + assert span.span_type == 'cache' + assert span.error == 0 + + expected_meta = { + 'django.cache.backend': 'django_pylibmc.memcached.PyLibMCCache', + 'django.cache.key': str(['missing_key', 'another_key']), + 'env': 'test', + } + + assert_dict_issuperset(span.meta, expected_meta) + assert start < span.start < span.start + span.duration < end diff --git a/tests/contrib/django/test_cache_client.py b/tests/contrib/django/test_cache_client.py new file mode 100644 index 0000000000..8972507308 --- /dev/null +++ b/tests/contrib/django/test_cache_client.py @@ -0,0 +1,364 @@ +import time + +# 3rd party +from django.core.cache import caches + +# testing +from .utils import DjangoTraceTestCase, override_ddtrace_settings +from ...util import assert_dict_issuperset + + +class DjangoCacheWrapperTest(DjangoTraceTestCase): + """ + Ensures that the cache system is properly traced + """ + def test_cache_get(self): + # get the default cache + cache = caches['default'] + + # (trace) the cache miss + start = time.time() + cache.get('missing_key') + end = time.time() + + # tests + spans = self.tracer.writer.pop() + assert len(spans) == 1 + + span = spans[0] + assert span.service == 'django' + assert span.resource == 'get' + assert span.name == 'django.cache' + assert span.span_type == 'cache' + assert span.error == 0 + + expected_meta = { + 'django.cache.backend': 'django.core.cache.backends.locmem.LocMemCache', + 'django.cache.key': 'missing_key', + 'env': 'test', + } + + assert_dict_issuperset(span.meta, expected_meta) + assert start < span.start < span.start + span.duration < end + + @override_ddtrace_settings(DEFAULT_CACHE_SERVICE='foo') + def test_cache_service_can_be_overriden(self): + # get the default cache + cache = caches['default'] + + # (trace) the cache miss + cache.get('missing_key') + + # tests + spans = self.tracer.writer.pop() + assert len(spans) == 1 + + span = spans[0] + assert span.service == 'foo' + + @override_ddtrace_settings(INSTRUMENT_CACHE=False) + def test_cache_disabled(self): + # get the default cache + cache = caches['default'] + + # (trace) the cache miss + cache.get('missing_key') + + # tests + spans = self.tracer.writer.pop() + assert len(spans) == 0 + + def test_cache_set(self): + # get the default cache + cache = caches['default'] + + # (trace) the cache miss + start = time.time() + cache.set('a_new_key', 50) + end = time.time() + + # tests + spans = self.tracer.writer.pop() + assert len(spans) == 1 + + span = spans[0] + assert span.service == 'django' + assert span.resource == 'set' + assert span.name == 'django.cache' + assert span.span_type == 'cache' + assert span.error == 0 + + expected_meta = { + 'django.cache.backend': 'django.core.cache.backends.locmem.LocMemCache', + 'django.cache.key': 'a_new_key', + 'env': 'test', + } + + assert_dict_issuperset(span.meta, expected_meta) + assert start < span.start < span.start + span.duration < end + + def test_cache_add(self): + # get the default cache + cache = caches['default'] + + # (trace) the cache miss + start = time.time() + cache.add('a_new_key', 50) + end = time.time() + + # tests + spans = self.tracer.writer.pop() + assert len(spans) == 1 + + span = spans[0] + assert span.service == 'django' + assert span.resource == 'add' + assert span.name == 'django.cache' + assert span.span_type == 'cache' + assert span.error == 0 + + expected_meta = { + 'django.cache.backend': 'django.core.cache.backends.locmem.LocMemCache', + 'django.cache.key': 'a_new_key', + 'env': 'test', + } + + assert_dict_issuperset(span.meta, expected_meta) + assert start < span.start < span.start + span.duration < end + + def test_cache_delete(self): + # get the default cache + cache = caches['default'] + + # (trace) the cache miss + start = time.time() + cache.delete('an_existing_key') + end = time.time() + + # tests + spans = self.tracer.writer.pop() + assert len(spans) == 1 + + span = spans[0] + assert span.service == 'django' + assert span.resource == 'delete' + assert span.name == 'django.cache' + assert span.span_type == 'cache' + assert span.error == 0 + + expected_meta = { + 'django.cache.backend': 'django.core.cache.backends.locmem.LocMemCache', + 'django.cache.key': 'an_existing_key', + 'env': 'test', + } + + assert_dict_issuperset(span.meta, expected_meta) + assert start < span.start < span.start + span.duration < end + + def test_cache_incr(self): + # get the default cache, set the value and reset the spans + cache = caches['default'] + cache.set('value', 0) + self.tracer.writer.spans = [] + + # (trace) the cache miss + start = time.time() + cache.incr('value') + end = time.time() + + # tests + spans = self.tracer.writer.pop() + assert len(spans) == 2 + + span_incr = spans[0] + span_get = spans[1] + + # LocMemCache doesn't provide an atomic operation + assert span_get.service == 'django' + assert span_get.resource == 'get' + assert span_get.name == 'django.cache' + assert span_get.span_type == 'cache' + assert span_get.error == 0 + assert span_incr.service == 'django' + assert span_incr.resource == 'incr' + assert span_incr.name == 'django.cache' + assert span_incr.span_type == 'cache' + assert span_incr.error == 0 + + expected_meta = { + 'django.cache.backend': 'django.core.cache.backends.locmem.LocMemCache', + 'django.cache.key': 'value', + 'env': 'test', + } + + assert_dict_issuperset(span_get.meta, expected_meta) + assert_dict_issuperset(span_incr.meta, expected_meta) + assert start < span_incr.start < span_incr.start + span_incr.duration < end + + def test_cache_decr(self): + # get the default cache, set the value and reset the spans + cache = caches['default'] + cache.set('value', 0) + self.tracer.writer.spans = [] + + # (trace) the cache miss + start = time.time() + cache.decr('value') + end = time.time() + + # tests + spans = self.tracer.writer.pop() + assert len(spans) == 3 + + span_decr = spans[0] + span_incr = spans[1] + span_get = spans[2] + + # LocMemCache doesn't provide an atomic operation + assert span_get.service == 'django' + assert span_get.resource == 'get' + assert span_get.name == 'django.cache' + assert span_get.span_type == 'cache' + assert span_get.error == 0 + assert span_incr.service == 'django' + assert span_incr.resource == 'incr' + assert span_incr.name == 'django.cache' + assert span_incr.span_type == 'cache' + assert span_incr.error == 0 + assert span_decr.service == 'django' + assert span_decr.resource == 'decr' + assert span_decr.name == 'django.cache' + assert span_decr.span_type == 'cache' + assert span_decr.error == 0 + + expected_meta = { + 'django.cache.backend': 'django.core.cache.backends.locmem.LocMemCache', + 'django.cache.key': 'value', + 'env': 'test', + } + + assert_dict_issuperset(span_get.meta, expected_meta) + assert_dict_issuperset(span_incr.meta, expected_meta) + assert_dict_issuperset(span_decr.meta, expected_meta) + assert start < span_decr.start < span_decr.start + span_decr.duration < end + + def test_cache_get_many(self): + # get the default cache + cache = caches['default'] + + # (trace) the cache miss + start = time.time() + cache.get_many(['missing_key', 'another_key']) + end = time.time() + + # tests + spans = self.tracer.writer.pop() + assert len(spans) == 3 + + span_get_many = spans[0] + span_get_first = spans[1] + span_get_second = spans[2] + + # LocMemCache doesn't provide an atomic operation + assert span_get_first.service == 'django' + assert span_get_first.resource == 'get' + assert span_get_first.name == 'django.cache' + assert span_get_first.span_type == 'cache' + assert span_get_first.error == 0 + assert span_get_second.service == 'django' + assert span_get_second.resource == 'get' + assert span_get_second.name == 'django.cache' + assert span_get_second.span_type == 'cache' + assert span_get_second.error == 0 + assert span_get_many.service == 'django' + assert span_get_many.resource == 'get_many' + assert span_get_many.name == 'django.cache' + assert span_get_many.span_type == 'cache' + assert span_get_many.error == 0 + + expected_meta = { + 'django.cache.backend': 'django.core.cache.backends.locmem.LocMemCache', + 'django.cache.key': str(['missing_key', 'another_key']), + 'env': 'test', + } + + assert_dict_issuperset(span_get_many.meta, expected_meta) + assert start < span_get_many.start < span_get_many.start + span_get_many.duration < end + + def test_cache_set_many(self): + # get the default cache + cache = caches['default'] + + # (trace) the cache miss + start = time.time() + cache.set_many({'first_key': 1, 'second_key': 2}) + end = time.time() + + # tests + spans = self.tracer.writer.pop() + assert len(spans) == 3 + + span_set_many = spans[0] + span_set_first = spans[1] + span_set_second = spans[2] + + # LocMemCache doesn't provide an atomic operation + assert span_set_first.service == 'django' + assert span_set_first.resource == 'set' + assert span_set_first.name == 'django.cache' + assert span_set_first.span_type == 'cache' + assert span_set_first.error == 0 + assert span_set_second.service == 'django' + assert span_set_second.resource == 'set' + assert span_set_second.name == 'django.cache' + assert span_set_second.span_type == 'cache' + assert span_set_second.error == 0 + assert span_set_many.service == 'django' + assert span_set_many.resource == 'set_many' + assert span_set_many.name == 'django.cache' + assert span_set_many.span_type == 'cache' + assert span_set_many.error == 0 + + assert span_set_many.meta['django.cache.backend'] == 'django.core.cache.backends.locmem.LocMemCache' + assert 'first_key' in span_set_many.meta['django.cache.key'] + assert 'second_key' in span_set_many.meta['django.cache.key'] + assert start < span_set_many.start < span_set_many.start + span_set_many.duration < end + + def test_cache_delete_many(self): + # get the default cache + cache = caches['default'] + + # (trace) the cache miss + start = time.time() + cache.delete_many(['missing_key', 'another_key']) + end = time.time() + + # tests + spans = self.tracer.writer.pop() + assert len(spans) == 3 + + span_delete_many = spans[0] + span_delete_first = spans[1] + span_delete_second = spans[2] + + # LocMemCache doesn't provide an atomic operation + assert span_delete_first.service == 'django' + assert span_delete_first.resource == 'delete' + assert span_delete_first.name == 'django.cache' + assert span_delete_first.span_type == 'cache' + assert span_delete_first.error == 0 + assert span_delete_second.service == 'django' + assert span_delete_second.resource == 'delete' + assert span_delete_second.name == 'django.cache' + assert span_delete_second.span_type == 'cache' + assert span_delete_second.error == 0 + assert span_delete_many.service == 'django' + assert span_delete_many.resource == 'delete_many' + assert span_delete_many.name == 'django.cache' + assert span_delete_many.span_type == 'cache' + assert span_delete_many.error == 0 + + assert span_delete_many.meta['django.cache.backend'] == 'django.core.cache.backends.locmem.LocMemCache' + assert 'missing_key' in span_delete_many.meta['django.cache.key'] + assert 'another_key' in span_delete_many.meta['django.cache.key'] + assert start < span_delete_many.start < span_delete_many.start + span_delete_many.duration < end diff --git a/tests/contrib/django/test_cache_views.py b/tests/contrib/django/test_cache_views.py new file mode 100644 index 0000000000..a26394809e --- /dev/null +++ b/tests/contrib/django/test_cache_views.py @@ -0,0 +1,93 @@ +# testing +from .compat import reverse +from .utils import DjangoTraceTestCase + + +class DjangoCacheViewTest(DjangoTraceTestCase): + """ + Ensures that the cache system is properly traced + """ + def test_cached_view(self): + # make the first request so that the view is cached + url = reverse('cached-users-list') + response = self.client.get(url) + assert response.status_code == 200 + + # check the first call for a non-cached view + spans = self.tracer.writer.pop() + assert len(spans) == 6 + # the cache miss + assert spans[1].resource == 'get' + # store the result in the cache + assert spans[4].resource == 'set' + assert spans[5].resource == 'set' + + # check if the cache hit is traced + response = self.client.get(url) + spans = self.tracer.writer.pop() + assert len(spans) == 3 + + span_header = spans[1] + span_view = spans[2] + assert span_view.service == 'django' + assert span_view.resource == 'get' + assert span_view.name == 'django.cache' + assert span_view.span_type == 'cache' + assert span_view.error == 0 + assert span_header.service == 'django' + assert span_header.resource == 'get' + assert span_header.name == 'django.cache' + assert span_header.span_type == 'cache' + assert span_header.error == 0 + + expected_meta_view = { + 'django.cache.backend': 'django.core.cache.backends.locmem.LocMemCache', + 'django.cache.key': ( + 'views.decorators.cache.cache_page..' + 'GET.03cdc1cc4aab71b038a6764e5fcabb82.d41d8cd98f00b204e9800998ecf8427e.en-us' + ), + 'env': 'test', + } + + expected_meta_header = { + 'django.cache.backend': 'django.core.cache.backends.locmem.LocMemCache', + 'django.cache.key': 'views.decorators.cache.cache_header..03cdc1cc4aab71b038a6764e5fcabb82.en-us', + 'env': 'test', + } + + assert span_view.meta == expected_meta_view + assert span_header.meta == expected_meta_header + + def test_cached_template(self): + # make the first request so that the view is cached + url = reverse('cached-template-list') + response = self.client.get(url) + assert response.status_code == 200 + + # check the first call for a non-cached view + spans = self.tracer.writer.pop() + assert len(spans) == 5 + # the cache miss + assert spans[2].resource == 'get' + # store the result in the cache + assert spans[4].resource == 'set' + + # check if the cache hit is traced + response = self.client.get(url) + spans = self.tracer.writer.pop() + assert len(spans) == 3 + + span_template_cache = spans[2] + assert span_template_cache.service == 'django' + assert span_template_cache.resource == 'get' + assert span_template_cache.name == 'django.cache' + assert span_template_cache.span_type == 'cache' + assert span_template_cache.error == 0 + + expected_meta = { + 'django.cache.backend': 'django.core.cache.backends.locmem.LocMemCache', + 'django.cache.key': 'template.cache.users_list.d41d8cd98f00b204e9800998ecf8427e', + 'env': 'test', + } + + assert span_template_cache.meta == expected_meta diff --git a/tests/contrib/django/test_cache_wrapper.py b/tests/contrib/django/test_cache_wrapper.py new file mode 100644 index 0000000000..11c314c009 --- /dev/null +++ b/tests/contrib/django/test_cache_wrapper.py @@ -0,0 +1,133 @@ +# 3rd party +from django.core.cache import caches +import pytest + +# testing +from .utils import DjangoTraceTestCase + + +class DjangoCacheTest(DjangoTraceTestCase): + """ + Ensures that the tracing doesn't break the Django + cache framework + """ + def test_wrapper_get_and_set(self): + # get the default cache + cache = caches['default'] + + value = cache.get('missing_key') + assert value is None + + cache.set('a_key', 50) + value = cache.get('a_key') + assert value == 50 + + def test_wrapper_add(self): + # get the default cache + cache = caches['default'] + + cache.add('a_key', 50) + value = cache.get('a_key') + assert value == 50 + + # add should not update a key if it's present + cache.add('a_key', 40) + value = cache.get('a_key') + assert value == 50 + + def test_wrapper_delete(self): + # get the default cache + cache = caches['default'] + + cache.set('a_key', 50) + cache.delete('a_key') + value = cache.get('a_key') + assert value is None + + def test_wrapper_incr_safety(self): + # get the default cache + cache = caches['default'] + + # it should fail not because of our wrapper + with pytest.raises(ValueError) as ex: + cache.incr('missing_key') + + # the error is not caused by our tracer + assert ex.value.args[0] == "Key 'missing_key' not found" + # an error trace must be sent + spans = self.tracer.writer.pop() + assert len(spans) == 2 + span = spans[0] + assert span.resource == 'incr' + assert span.name == 'django.cache' + assert span.span_type == 'cache' + assert span.error == 1 + + def test_wrapper_incr(self): + # get the default cache + cache = caches['default'] + + cache.set('value', 0) + value = cache.incr('value') + assert value == 1 + value = cache.get('value') + assert value == 1 + + def test_wrapper_decr_safety(self): + # get the default cache + cache = caches['default'] + + # it should fail not because of our wrapper + with pytest.raises(ValueError) as ex: + cache.decr('missing_key') + + # the error is not caused by our tracer + assert ex.value.args[0] == "Key 'missing_key' not found" + # an error trace must be sent + spans = self.tracer.writer.pop() + assert len(spans) == 3 + span = spans[0] + assert span.resource == 'decr' + assert span.name == 'django.cache' + assert span.span_type == 'cache' + assert span.error == 1 + + def test_wrapper_decr(self): + # get the default cache + cache = caches['default'] + + cache.set('value', 0) + value = cache.decr('value') + assert value == -1 + value = cache.get('value') + assert value == -1 + + def test_wrapper_get_many(self): + # get the default cache + cache = caches['default'] + + cache.set('a_key', 50) + cache.set('another_key', 60) + + values = cache.get_many(['a_key', 'another_key']) + assert isinstance(values, dict) + assert values['a_key'] == 50 + assert values['another_key'] == 60 + + def test_wrapper_set_many(self): + # get the default cache + cache = caches['default'] + + cache.set_many({'a_key': 50, 'another_key': 60}) + assert cache.get('a_key') == 50 + assert cache.get('another_key') == 60 + + def test_wrapper_delete_many(self): + # get the default cache + cache = caches['default'] + + cache.set('a_key', 50) + cache.set('another_key', 60) + cache.delete_many(['a_key', 'another_key']) + assert cache.get('a_key') is None + assert cache.get('another_key') is None diff --git a/tests/contrib/django/test_connection.py b/tests/contrib/django/test_connection.py new file mode 100644 index 0000000000..a18ffc222c --- /dev/null +++ b/tests/contrib/django/test_connection.py @@ -0,0 +1,72 @@ +import mock +import time + +# 3rd party +from django.contrib.auth.models import User + +from ddtrace.contrib.django.conf import settings +from ddtrace.contrib.django.patch import apply_django_patches, connections + +# testing +from .utils import DjangoTraceTestCase, override_ddtrace_settings + + +class DjangoConnectionTest(DjangoTraceTestCase): + """ + Ensures that database connections are properly traced + """ + def test_connection(self): + # trace a simple query + start = time.time() + users = User.objects.count() + assert users == 0 + end = time.time() + + # tests + spans = self.tracer.writer.pop() + assert spans, spans + assert len(spans) == 1 + + span = spans[0] + assert span.name == 'sqlite.query' + assert span.service == 'defaultdb' + assert span.span_type == 'sql' + assert span.get_tag('django.db.vendor') == 'sqlite' + assert span.get_tag('django.db.alias') == 'default' + assert start < span.start < span.start + span.duration < end + + def test_django_db_query_in_resource_not_in_tags(self): + User.objects.count() + spans = self.tracer.writer.pop() + assert spans[0].name == 'sqlite.query' + assert spans[0].resource == 'SELECT COUNT(*) AS "__count" FROM "auth_user"' + assert spans[0].get_tag('sql.query') is None + + @override_ddtrace_settings(INSTRUMENT_DATABASE=False) + def test_connection_disabled(self): + # trace a simple query + users = User.objects.count() + assert users == 0 + + # tests + spans = self.tracer.writer.pop() + assert len(spans) == 0 + + def test_should_append_database_prefix(self): + # trace a simple query and check if the prefix is correctly + # loaded from Django settings + settings.DEFAULT_DATABASE_PREFIX = 'my_prefix_db' + User.objects.count() + + traces = self.tracer.writer.pop_traces() + assert len(traces) == 1 + assert len(traces[0]) == 1 + span = traces[0][0] + assert span.service == 'my_prefix_db-defaultdb' + + def test_apply_django_patches_calls_connections_all(self): + with mock.patch.object(connections, 'all') as mock_connections: + apply_django_patches(patch_rest_framework=False) + + assert mock_connections.call_count == 1 + assert mock_connections.mock_calls == [mock.call()] diff --git a/tests/contrib/django/test_instrumentation.py b/tests/contrib/django/test_instrumentation.py new file mode 100644 index 0000000000..a8960efcb5 --- /dev/null +++ b/tests/contrib/django/test_instrumentation.py @@ -0,0 +1,35 @@ +# project +from ddtrace.contrib.django.conf import DatadogSettings + +# testing +from .utils import DjangoTraceTestCase + + +class DjangoInstrumentationTest(DjangoTraceTestCase): + """ + Ensures that Django is correctly configured according to + users settings + """ + def test_tracer_flags(self): + assert self.tracer.enabled + assert self.tracer.writer.api.hostname == 'localhost' + assert self.tracer.writer.api.port == 8126 + assert self.tracer.tags == {'env': 'test'} + + def test_environment_vars(self): + # Django defaults can be overridden by env vars, ensuring that + # environment strings are properly converted + with self.override_env(dict( + DATADOG_TRACE_AGENT_HOSTNAME='agent.consul.local', + DATADOG_TRACE_AGENT_PORT='58126' + )): + settings = DatadogSettings() + assert settings.AGENT_HOSTNAME == 'agent.consul.local' + assert settings.AGENT_PORT == 58126 + + def test_environment_var_wrong_port(self): + # ensures that a wrong Agent Port doesn't crash the system + # and defaults to 8126 + with self.override_env(dict(DATADOG_TRACE_AGENT_PORT='something')): + settings = DatadogSettings() + assert settings.AGENT_PORT == 8126 diff --git a/tests/contrib/django/test_middleware.py b/tests/contrib/django/test_middleware.py new file mode 100644 index 0000000000..fb4271a077 --- /dev/null +++ b/tests/contrib/django/test_middleware.py @@ -0,0 +1,460 @@ +# 3rd party +from django.test import modify_settings +from django.db import connections + +# project +from ddtrace import config +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY, SAMPLING_PRIORITY_KEY +from ddtrace.contrib.django.db import unpatch_conn +from ddtrace.ext import errors, http + +# testing +from tests.opentracer.utils import init_tracer +from .compat import reverse +from .utils import DjangoTraceTestCase, override_ddtrace_settings +from ...utils import assert_span_http_status_code + + +class DjangoMiddlewareTest(DjangoTraceTestCase): + """ + Ensures that the middleware traces all Django internals + """ + def test_middleware_trace_request(self, query_string=''): + # ensures that the internals are properly traced + url = reverse('users-list') + if query_string: + fqs = '?' + query_string + else: + fqs = '' + response = self.client.get(url + fqs) + assert response.status_code == 200 + + # check for spans + spans = self.tracer.writer.pop() + assert len(spans) == 3 + sp_request = spans[0] + sp_template = spans[1] + sp_database = spans[2] + assert sp_database.get_tag('django.db.vendor') == 'sqlite' + assert sp_template.get_tag('django.template_name') == 'users_list.html' + assert_span_http_status_code(sp_request, 200) + assert sp_request.get_tag(http.URL) == 'http://testserver/users/' + assert sp_request.get_tag('django.user.is_authenticated') == 'False' + assert sp_request.get_tag('http.method') == 'GET' + assert sp_request.span_type == 'web' + assert sp_request.resource == 'tests.contrib.django.app.views.UserList' + if config.django.trace_query_string: + assert sp_request.get_tag(http.QUERY_STRING) == query_string + else: + assert http.QUERY_STRING not in sp_request.meta + + def test_middleware_trace_request_qs(self): + return self.test_middleware_trace_request('foo=bar') + + def test_middleware_trace_request_multi_qs(self): + return self.test_middleware_trace_request('foo=bar&foo=baz&x=y') + + def test_middleware_trace_request_no_qs_trace(self): + with self.override_global_config(dict(trace_query_string=True)): + return self.test_middleware_trace_request() + + def test_middleware_trace_request_qs_trace(self): + with self.override_global_config(dict(trace_query_string=True)): + return self.test_middleware_trace_request('foo=bar') + + def test_middleware_trace_request_multi_qs_trace(self): + with self.override_global_config(dict(trace_query_string=True)): + return self.test_middleware_trace_request('foo=bar&foo=baz&x=y') + + def test_analytics_global_on_integration_default(self): + """ + When making a request + When an integration trace search is not event sample rate is not set and globally trace search is enabled + We expect the root span to have the appropriate tag + """ + with self.override_global_config(dict(analytics_enabled=True)): + url = reverse('users-list') + response = self.client.get(url) + self.assertEqual(response.status_code, 200) + + spans = self.tracer.writer.pop() + assert len(spans) == 3 + sp_request = spans[0] + sp_template = spans[1] + sp_database = spans[2] + self.assertEqual(sp_request.name, 'django.request') + self.assertEqual(sp_request.get_metric(ANALYTICS_SAMPLE_RATE_KEY), 1.0) + self.assertIsNone(sp_template.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + self.assertIsNone(sp_database.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + @override_ddtrace_settings(ANALYTICS_ENABLED=True, ANALYTICS_SAMPLE_RATE=0.5) + def test_analytics_global_on_integration_on(self): + """ + When making a request + When an integration trace search is enabled and sample rate is set and globally trace search is enabled + We expect the root span to have the appropriate tag + """ + with self.override_global_config(dict(analytics_enabled=True)): + url = reverse('users-list') + response = self.client.get(url) + self.assertEqual(response.status_code, 200) + + spans = self.tracer.writer.pop() + assert len(spans) == 3 + sp_request = spans[0] + sp_template = spans[1] + sp_database = spans[2] + self.assertEqual(sp_request.name, 'django.request') + self.assertEqual(sp_request.get_metric(ANALYTICS_SAMPLE_RATE_KEY), 0.5) + self.assertIsNone(sp_template.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + self.assertIsNone(sp_database.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + def test_analytics_global_off_integration_default(self): + """ + When making a request + When an integration trace search is not set and sample rate is set and globally trace search is disabled + We expect the root span to not include tag + """ + with self.override_global_config(dict(analytics_enabled=False)): + url = reverse('users-list') + response = self.client.get(url) + self.assertEqual(response.status_code, 200) + + spans = self.tracer.writer.pop() + assert len(spans) == 3 + sp_request = spans[0] + sp_template = spans[1] + sp_database = spans[2] + self.assertEqual(sp_request.name, 'django.request') + self.assertIsNone(sp_request.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + self.assertIsNone(sp_template.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + self.assertIsNone(sp_database.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + @override_ddtrace_settings(ANALYTICS_ENABLED=True, ANALYTICS_SAMPLE_RATE=0.5) + def test_analytics_global_off_integration_on(self): + """ + When making a request + When an integration trace search is enabled and sample rate is set and globally trace search is disabled + We expect the root span to have the appropriate tag + """ + with self.override_global_config(dict(analytics_enabled=False)): + url = reverse('users-list') + response = self.client.get(url) + self.assertEqual(response.status_code, 200) + + spans = self.tracer.writer.pop() + assert len(spans) == 3 + sp_request = spans[0] + sp_template = spans[1] + sp_database = spans[2] + self.assertEqual(sp_request.name, 'django.request') + self.assertEqual(sp_request.get_metric(ANALYTICS_SAMPLE_RATE_KEY), 0.5) + self.assertIsNone(sp_template.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + self.assertIsNone(sp_database.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + @override_ddtrace_settings(ANALYTICS_ENABLED=True, ANALYTICS_SAMPLE_RATE=None) + def test_analytics_global_off_integration_on_and_none(self): + """ + When making a request + When an integration trace search is enabled + Sample rate is set to None + Globally trace search is disabled + We expect the root span to have the appropriate tag + """ + with self.override_global_config(dict(analytics_enabled=False)): + url = reverse('users-list') + response = self.client.get(url) + self.assertEqual(response.status_code, 200) + + spans = self.tracer.writer.pop() + assert len(spans) == 3 + sp_request = spans[0] + sp_template = spans[1] + sp_database = spans[2] + self.assertEqual(sp_request.name, 'django.request') + assert sp_request.get_metric(ANALYTICS_SAMPLE_RATE_KEY) is None + assert sp_template.get_metric(ANALYTICS_SAMPLE_RATE_KEY) is None + assert sp_database.get_metric(ANALYTICS_SAMPLE_RATE_KEY) is None + + def test_database_patch(self): + # We want to test that a connection-recreation event causes connections + # to get repatched. However since django tests are a atomic transaction + # we can't change the connection. Instead we test that the connection + # does get repatched if it's not patched. + for conn in connections.all(): + unpatch_conn(conn) + # ensures that the internals are properly traced + url = reverse('users-list') + response = self.client.get(url) + assert response.status_code == 200 + + # We would be missing span #3, the database span, if the connection + # wasn't patched. + spans = self.tracer.writer.pop() + assert len(spans) == 3 + assert spans[0].name == 'django.request' + assert spans[1].name == 'django.template' + assert spans[2].name == 'sqlite.query' + + def test_middleware_trace_errors(self): + # ensures that the internals are properly traced + url = reverse('forbidden-view') + response = self.client.get(url) + assert response.status_code == 403 + + # check for spans + spans = self.tracer.writer.pop() + assert len(spans) == 1 + span = spans[0] + assert_span_http_status_code(span, 403) + assert span.get_tag(http.URL) == 'http://testserver/fail-view/' + assert span.resource == 'tests.contrib.django.app.views.ForbiddenView' + + def test_middleware_trace_function_based_view(self): + # ensures that the internals are properly traced when using a function views + url = reverse('fn-view') + response = self.client.get(url) + assert response.status_code == 200 + + # check for spans + spans = self.tracer.writer.pop() + assert len(spans) == 1 + span = spans[0] + assert_span_http_status_code(span, 200) + assert span.get_tag(http.URL) == 'http://testserver/fn-view/' + assert span.resource == 'tests.contrib.django.app.views.function_view' + + def test_middleware_trace_error_500(self): + # ensures we trace exceptions generated by views + url = reverse('error-500') + response = self.client.get(url) + assert response.status_code == 500 + + # check for spans + spans = self.tracer.writer.pop() + assert len(spans) == 1 + span = spans[0] + assert span.error == 1 + assert_span_http_status_code(span, 500) + assert span.get_tag(http.URL) == 'http://testserver/error-500/' + assert span.resource == 'tests.contrib.django.app.views.error_500' + assert 'Error 500' in span.get_tag('error.stack') + + def test_middleware_trace_callable_view(self): + # ensures that the internals are properly traced when using callable views + url = reverse('feed-view') + response = self.client.get(url) + assert response.status_code == 200 + + # check for spans + spans = self.tracer.writer.pop() + assert len(spans) == 1 + span = spans[0] + assert_span_http_status_code(span, 200) + assert span.get_tag(http.URL) == 'http://testserver/feed-view/' + assert span.resource == 'tests.contrib.django.app.views.FeedView' + + def test_middleware_trace_partial_based_view(self): + # ensures that the internals are properly traced when using a function views + url = reverse('partial-view') + response = self.client.get(url) + assert response.status_code == 200 + + # check for spans + spans = self.tracer.writer.pop() + assert len(spans) == 1 + span = spans[0] + assert_span_http_status_code(span, 200) + assert span.get_tag(http.URL) == 'http://testserver/partial-view/' + assert span.resource == 'partial' + + def test_middleware_trace_lambda_based_view(self): + # ensures that the internals are properly traced when using a function views + url = reverse('lambda-view') + response = self.client.get(url) + assert response.status_code == 200 + + # check for spans + spans = self.tracer.writer.pop() + assert len(spans) == 1 + span = spans[0] + assert_span_http_status_code(span, 200) + assert span.get_tag(http.URL) == 'http://testserver/lambda-view/' + assert span.resource == 'tests.contrib.django.app.views.' + + @modify_settings( + MIDDLEWARE={ + 'remove': 'django.contrib.auth.middleware.AuthenticationMiddleware', + }, + MIDDLEWARE_CLASSES={ + 'remove': 'django.contrib.auth.middleware.AuthenticationMiddleware', + }, + ) + def test_middleware_without_user(self): + # remove the AuthenticationMiddleware so that the ``request`` + # object doesn't have the ``user`` field + url = reverse('users-list') + response = self.client.get(url) + assert response.status_code == 200 + + # check for spans + spans = self.tracer.writer.pop() + assert len(spans) == 3 + sp_request = spans[0] + assert_span_http_status_code(sp_request, 200) + assert sp_request.get_tag('django.user.is_authenticated') is None + + def test_middleware_propagation(self): + # ensures that we properly propagate http context + url = reverse('users-list') + headers = { + 'x-datadog-trace-id': '100', + 'x-datadog-parent-id': '42', + 'x-datadog-sampling-priority': '2', + } + response = self.client.get(url, **headers) + assert response.status_code == 200 + + # check for spans + spans = self.tracer.writer.pop() + assert len(spans) == 3 + sp_request = spans[0] + + # Check for proper propagated attributes + assert sp_request.trace_id == 100 + assert sp_request.parent_id == 42 + assert sp_request.get_metric(SAMPLING_PRIORITY_KEY) == 2 + + @override_ddtrace_settings(DISTRIBUTED_TRACING=False) + def test_middleware_no_propagation(self): + # ensures that we properly propagate http context + url = reverse('users-list') + headers = { + 'x-datadog-trace-id': '100', + 'x-datadog-parent-id': '42', + 'x-datadog-sampling-priority': '2', + } + response = self.client.get(url, **headers) + assert response.status_code == 200 + + # check for spans + spans = self.tracer.writer.pop() + assert len(spans) == 3 + sp_request = spans[0] + + # Check that propagation didn't happen + assert sp_request.trace_id != 100 + assert sp_request.parent_id != 42 + assert sp_request.get_metric(SAMPLING_PRIORITY_KEY) != 2 + + @modify_settings( + MIDDLEWARE={ + 'append': 'tests.contrib.django.app.middlewares.HandleErrorMiddlewareSuccess', + }, + MIDDLEWARE_CLASSES={ + 'append': 'tests.contrib.django.app.middlewares.HandleErrorMiddlewareSuccess', + }, + ) + def test_middleware_handled_view_exception_success(self): + """ Test when an exception is raised in a view and then handled, that + the resulting span does not possess error properties. + """ + url = reverse('error-500') + response = self.client.get(url) + assert response.status_code == 200 + + spans = self.tracer.writer.pop() + assert len(spans) == 1 + + sp_request = spans[0] + + assert sp_request.error == 0 + assert sp_request.get_tag(errors.ERROR_STACK) is None + assert sp_request.get_tag(errors.ERROR_MSG) is None + assert sp_request.get_tag(errors.ERROR_TYPE) is None + + @modify_settings( + MIDDLEWARE={ + 'append': 'tests.contrib.django.app.middlewares.HandleErrorMiddlewareClientError', + }, + MIDDLEWARE_CLASSES={ + 'append': 'tests.contrib.django.app.middlewares.HandleErrorMiddlewareClientError', + }, + ) + def test_middleware_handled_view_exception_client_error(self): + """ Test the case that when an exception is raised in a view and then + handled, that the resulting span does not possess error properties. + """ + url = reverse('error-500') + response = self.client.get(url) + assert response.status_code == 404 + + spans = self.tracer.writer.pop() + assert len(spans) == 1 + + sp_request = spans[0] + + assert sp_request.error == 0 + assert sp_request.get_tag(errors.ERROR_STACK) is None + assert sp_request.get_tag(errors.ERROR_MSG) is None + assert sp_request.get_tag(errors.ERROR_TYPE) is None + + def test_middleware_trace_request_ot(self): + """OpenTracing version of test_middleware_trace_request.""" + ot_tracer = init_tracer('my_svc', self.tracer) + + # ensures that the internals are properly traced + url = reverse('users-list') + with ot_tracer.start_active_span('ot_span'): + response = self.client.get(url) + assert response.status_code == 200 + + # check for spans + spans = self.tracer.writer.pop() + assert len(spans) == 4 + ot_span = spans[0] + sp_request = spans[1] + sp_template = spans[2] + sp_database = spans[3] + + # confirm parenting + assert ot_span.parent_id is None + assert sp_request.parent_id == ot_span.span_id + + assert ot_span.resource == 'ot_span' + assert ot_span.service == 'my_svc' + + assert sp_database.get_tag('django.db.vendor') == 'sqlite' + assert sp_template.get_tag('django.template_name') == 'users_list.html' + assert_span_http_status_code(sp_request, 200) + assert sp_request.get_tag(http.URL) == 'http://testserver/users/' + assert sp_request.get_tag('django.user.is_authenticated') == 'False' + assert sp_request.get_tag('http.method') == 'GET' + + def test_middleware_trace_request_404(self): + """ + When making a request to an unknown url in django + when we do not have a 404 view handler set + we set a resource name for the default view handler + """ + response = self.client.get('/unknown-url') + assert response.status_code == 404 + + # check for spans + spans = self.tracer.writer.pop() + assert len(spans) == 2 + sp_request = spans[0] + sp_template = spans[1] + + # Template + # DEV: The template name is `unknown` because unless they define a `404.html` + # django generates the template from a string, which will not have a `Template.name` set + assert sp_template.get_tag('django.template_name') == 'unknown' + + # Request + assert_span_http_status_code(sp_request, 404) + assert sp_request.get_tag(http.URL) == 'http://testserver/unknown-url' + assert sp_request.get_tag('django.user.is_authenticated') == 'False' + assert sp_request.get_tag('http.method') == 'GET' + assert sp_request.span_type == 'web' + assert sp_request.resource == 'django.views.defaults.page_not_found' diff --git a/tests/contrib/django/test_templates.py b/tests/contrib/django/test_templates.py new file mode 100644 index 0000000000..8e8b6ea021 --- /dev/null +++ b/tests/contrib/django/test_templates.py @@ -0,0 +1,46 @@ +import time + +# 3rd party +from django.template import Context, Template + +# testing +from .utils import DjangoTraceTestCase, override_ddtrace_settings + + +class DjangoTemplateTest(DjangoTraceTestCase): + """ + Ensures that the template system is properly traced + """ + def test_template(self): + # prepare a base template using the default engine + template = Template('Hello {{name}}!') + ctx = Context({'name': 'Django'}) + + # (trace) the template rendering + start = time.time() + assert template.render(ctx) == 'Hello Django!' + end = time.time() + + # tests + spans = self.tracer.writer.pop() + assert spans, spans + assert len(spans) == 1 + + span = spans[0] + assert span.span_type == 'template' + assert span.name == 'django.template' + assert span.get_tag('django.template_name') == 'unknown' + assert start < span.start < span.start + span.duration < end + + @override_ddtrace_settings(INSTRUMENT_TEMPLATE=False) + def test_template_disabled(self): + # prepare a base template using the default engine + template = Template('Hello {{name}}!') + ctx = Context({'name': 'Django'}) + + # (trace) the template rendering + assert template.render(ctx) == 'Hello Django!' + + # tests + spans = self.tracer.writer.pop() + assert len(spans) == 0 diff --git a/tests/contrib/django/test_tracing_disabled.py b/tests/contrib/django/test_tracing_disabled.py new file mode 100644 index 0000000000..61605f2dea --- /dev/null +++ b/tests/contrib/django/test_tracing_disabled.py @@ -0,0 +1,42 @@ +# 3rd party +from django.apps import apps +from django.test import TestCase + +# project +from ddtrace.tracer import Tracer +from ddtrace.contrib.django.conf import settings + +# testing +from ...test_tracer import DummyWriter + + +class DjangoTracingDisabledTest(TestCase): + def setUp(self): + # backup previous conf + self.backupEnabled = settings.ENABLED + self.backupTracer = settings.TRACER + + # Use a new tracer to be sure that a new service + # would be sent to the the writer + self.tracer = Tracer() + self.tracer.writer = DummyWriter() + + # Restart app with tracing disabled + settings.ENABLED = False + self.app = apps.get_app_config('datadog_django') + self.app.ready() + + def tearDown(self): + # Reset the original settings + settings.ENABLED = self.backupEnabled + settings.TRACER = self.backupTracer + self.app.ready() + + def test_no_service_info_is_written(self): + services = self.tracer.writer.pop_services() + assert len(services) == 0 + + def test_no_trace_is_written(self): + settings.TRACER.trace('client.testing').finish() + traces = self.tracer.writer.pop_traces() + assert len(traces) == 0 diff --git a/tests/contrib/django/test_utils.py b/tests/contrib/django/test_utils.py new file mode 100644 index 0000000000..2d7cf07405 --- /dev/null +++ b/tests/contrib/django/test_utils.py @@ -0,0 +1,17 @@ +# 3d party +from django.test import TestCase + +# project +from ddtrace.contrib.django.utils import quantize_key_values + + +class DjangoUtilsTest(TestCase): + def test_quantize_key_values(self): + """ + Ensure that the utility functions properly convert a dictionary object + """ + key = {'second_key': 2, 'first_key': 1} + result = quantize_key_values(key) + assert len(result) == 2 + assert 'first_key' in result + assert 'second_key' in result diff --git a/tests/contrib/django/utils.py b/tests/contrib/django/utils.py new file mode 100644 index 0000000000..9cd2c420f3 --- /dev/null +++ b/tests/contrib/django/utils.py @@ -0,0 +1,87 @@ +from functools import wraps + +# 3rd party +from django.apps import apps +from django.test import TestCase + +# project +from ddtrace.tracer import Tracer +from ddtrace.contrib.django.conf import settings +from ddtrace.contrib.django.db import patch_db, unpatch_db +from ddtrace.contrib.django.cache import unpatch_cache +from ddtrace.contrib.django.templates import unpatch_template +from ddtrace.contrib.django.middleware import remove_exception_middleware, remove_trace_middleware + +# testing +from ...base import BaseTestCase +from ...test_tracer import DummyWriter + + +# testing tracer +tracer = Tracer() +tracer.writer = DummyWriter() + + +class DjangoTraceTestCase(BaseTestCase, TestCase): + """ + Base class that provides an internal tracer according to given + Datadog settings. This class ensures that the tracer spans are + properly reset after each run. The tracer is available in + the ``self.tracer`` attribute. + """ + def setUp(self): + # assign the default tracer + self.tracer = settings.TRACER + # empty the tracer spans from previous operations + # such as database creation queries + self.tracer.writer.spans = [] + self.tracer.writer.pop_traces() + # gets unpatched for some tests + patch_db(self.tracer) + + def tearDown(self): + # empty the tracer spans from test operations + self.tracer.writer.spans = [] + self.tracer.writer.pop_traces() + + +class override_ddtrace_settings(object): + def __init__(self, *args, **kwargs): + self.items = list(kwargs.items()) + + def unpatch_all(self): + unpatch_cache() + unpatch_db() + unpatch_template() + remove_trace_middleware() + remove_exception_middleware() + + def __enter__(self): + self.enable() + + def __exit__(self, exc_type, exc_value, traceback): + self.disable() + + def enable(self): + self.backup = {} + for name, value in self.items: + self.backup[name] = getattr(settings, name) + setattr(settings, name, value) + self.unpatch_all() + app = apps.get_app_config('datadog_django') + app.ready() + + def disable(self): + for name, value in self.items: + setattr(settings, name, self.backup[name]) + self.unpatch_all() + remove_exception_middleware() + app = apps.get_app_config('datadog_django') + app.ready() + + def __call__(self, func): + @wraps(func) + def inner(*args, **kwargs): + with(self): + return func(*args, **kwargs) + return inner diff --git a/tests/contrib/djangorestframework/__init__.py b/tests/contrib/djangorestframework/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/djangorestframework/app/__init__.py b/tests/contrib/djangorestframework/app/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/djangorestframework/app/exceptions.py b/tests/contrib/djangorestframework/app/exceptions.py new file mode 100644 index 0000000000..0f4fce70e4 --- /dev/null +++ b/tests/contrib/djangorestframework/app/exceptions.py @@ -0,0 +1,13 @@ +from rest_framework.views import exception_handler +from rest_framework.response import Response +from rest_framework import status + + +def custom_exception_handler(exc, context): + response = exception_handler(exc, context) + + # We overwrite the response status code to 500 + if response is not None: + return Response({'detail': str(exc)}, status=status.HTTP_500_INTERNAL_SERVER_ERROR) + + return response diff --git a/tests/contrib/djangorestframework/app/settings.py b/tests/contrib/djangorestframework/app/settings.py new file mode 100644 index 0000000000..ac24bd45fd --- /dev/null +++ b/tests/contrib/djangorestframework/app/settings.py @@ -0,0 +1,115 @@ +""" +Settings configuration for the Django web framework. Update this +configuration if you need to change the default behavior of +Django during tests +""" +import os +import django + + +BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__))) + +DATABASES = { + 'default': { + 'ENGINE': 'django.db.backends.sqlite3', + 'NAME': ':memory:' + } +} + +SITE_ID = 1 +SECRET_KEY = 'not_very_secret_in_tests' +USE_I18N = True +USE_L10N = True +STATIC_URL = '/static/' +ROOT_URLCONF = 'tests.contrib.djangorestframework.app.views' + +TEMPLATES = [ + { + 'BACKEND': 'django.template.backends.django.DjangoTemplates', + 'DIRS': [ + os.path.join(BASE_DIR, 'app', 'templates'), + ], + 'APP_DIRS': True, + 'OPTIONS': { + 'context_processors': [ + 'django.template.context_processors.debug', + 'django.template.context_processors.request', + 'django.contrib.auth.context_processors.auth', + 'django.contrib.messages.context_processors.messages', + ], + }, + }, +] + +if (1, 10) <= django.VERSION < (2, 0): + MIDDLEWARE = [ + 'django.contrib.sessions.middleware.SessionMiddleware', + 'django.middleware.common.CommonMiddleware', + 'django.middleware.csrf.CsrfViewMiddleware', + 'django.contrib.auth.middleware.AuthenticationMiddleware', + 'django.contrib.auth.middleware.SessionAuthenticationMiddleware', + 'django.contrib.messages.middleware.MessageMiddleware', + 'django.middleware.clickjacking.XFrameOptionsMiddleware', + 'django.middleware.security.SecurityMiddleware', + + 'tests.contrib.django.app.middlewares.CatchExceptionMiddleware', + ] + +# Django 2.0 has different defaults +elif django.VERSION >= (2, 0): + MIDDLEWARE = [ + 'django.contrib.sessions.middleware.SessionMiddleware', + 'django.middleware.common.CommonMiddleware', + 'django.middleware.csrf.CsrfViewMiddleware', + 'django.contrib.auth.middleware.AuthenticationMiddleware', + 'django.contrib.messages.middleware.MessageMiddleware', + 'django.middleware.clickjacking.XFrameOptionsMiddleware', + 'django.middleware.security.SecurityMiddleware', + + 'tests.contrib.django.app.middlewares.CatchExceptionMiddleware', + ] + +# Pre 1.10 style +else: + MIDDLEWARE_CLASSES = [ + 'django.contrib.sessions.middleware.SessionMiddleware', + 'django.middleware.common.CommonMiddleware', + 'django.middleware.csrf.CsrfViewMiddleware', + 'django.contrib.auth.middleware.AuthenticationMiddleware', + 'django.contrib.auth.middleware.SessionAuthenticationMiddleware', + 'django.contrib.messages.middleware.MessageMiddleware', + 'django.middleware.clickjacking.XFrameOptionsMiddleware', + 'django.middleware.security.SecurityMiddleware', + + 'tests.contrib.django.app.middlewares.CatchExceptionMiddleware', + ] + +INSTALLED_APPS = [ + 'django.contrib.admin', + 'django.contrib.auth', + 'django.contrib.contenttypes', + 'django.contrib.sessions', + + # tracer app + 'ddtrace.contrib.django', + + # djangorestframework + 'rest_framework' +] + +DATADOG_TRACE = { + # tracer with a DummyWriter + 'TRACER': 'tests.contrib.django.utils.tracer', + 'ENABLED': True, + 'TAGS': { + 'env': 'test', + }, +} + +REST_FRAMEWORK = { + 'DEFAULT_PERMISSION_CLASSES': [ + 'rest_framework.permissions.IsAdminUser', + ], + + 'EXCEPTION_HANDLER': 'tests.contrib.djangorestframework.app.exceptions.custom_exception_handler' +} diff --git a/tests/contrib/djangorestframework/app/views.py b/tests/contrib/djangorestframework/app/views.py new file mode 100644 index 0000000000..88179c6771 --- /dev/null +++ b/tests/contrib/djangorestframework/app/views.py @@ -0,0 +1,29 @@ +from django.conf.urls import url, include +from django.contrib.auth.models import User + +from rest_framework import viewsets, routers, serializers + + +class UserSerializer(serializers.HyperlinkedModelSerializer): + class Meta: + model = User + fields = ('url', 'username', 'email', 'groups') + + +class UserViewSet(viewsets.ModelViewSet): + """ + API endpoint that allows users to be viewed or edited. + """ + queryset = User.objects.all().order_by('-date_joined') + serializer_class = UserSerializer + + +router = routers.DefaultRouter() +router.register(r'users', UserViewSet) + +# Wire up our API using automatic URL routing. +# Additionally, we include login URLs for the browsable API. +urlpatterns = [ + url(r'^', include(router.urls)), + url(r'^api-auth/', include('rest_framework.urls', namespace='rest_framework')), +] diff --git a/tests/contrib/djangorestframework/conftest.py b/tests/contrib/djangorestframework/conftest.py new file mode 100644 index 0000000000..a30ef07cfd --- /dev/null +++ b/tests/contrib/djangorestframework/conftest.py @@ -0,0 +1,16 @@ +import os +import django +from django.conf import settings + +# We manually designate which settings we will be using in an environment variable +# This is similar to what occurs in the `manage.py` +os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'tests.contrib.djangorestframework.app.settings') + + +# `pytest` automatically calls this function once when tests are run. +def pytest_configure(): + settings.DEBUG = False + if django.VERSION < (1, 7, 0): + settings.configure() + else: + django.setup() diff --git a/tests/contrib/djangorestframework/test_djangorestframework.py b/tests/contrib/djangorestframework/test_djangorestframework.py new file mode 100644 index 0000000000..a91c9f9f01 --- /dev/null +++ b/tests/contrib/djangorestframework/test_djangorestframework.py @@ -0,0 +1,62 @@ +import django +from django.apps import apps +from unittest import skipIf + +from tests.contrib.django.utils import DjangoTraceTestCase +from ...utils import assert_span_http_status_code + + +@skipIf(django.VERSION < (1, 10), 'requires django version >= 1.10') +class RestFrameworkTest(DjangoTraceTestCase): + def setUp(self): + super(RestFrameworkTest, self).setUp() + + # would raise an exception + from rest_framework.views import APIView + from ddtrace.contrib.django.restframework import unpatch_restframework + + self.APIView = APIView + self.unpatch_restframework = unpatch_restframework + + def test_setup(self): + assert apps.is_installed('rest_framework') + assert hasattr(self.APIView, '_datadog_patch') + + def test_unpatch(self): + self.unpatch_restframework() + assert not getattr(self.APIView, '_datadog_patch') + + response = self.client.get('/users/') + + # Our custom exception handler is setting the status code to 500 + assert response.status_code == 500 + + # check for spans + spans = self.tracer.writer.pop() + assert len(spans) == 1 + sp = spans[0] + assert sp.name == 'django.request' + assert sp.resource == 'tests.contrib.djangorestframework.app.views.UserViewSet' + assert sp.error == 0 + assert sp.span_type == 'web' + assert_span_http_status_code(sp, 500) + assert sp.get_tag('error.msg') is None + + def test_trace_exceptions(self): + response = self.client.get('/users/') + + # Our custom exception handler is setting the status code to 500 + assert response.status_code == 500 + + # check for spans + spans = self.tracer.writer.pop() + assert len(spans) == 1 + sp = spans[0] + assert sp.name == 'django.request' + assert sp.resource == 'tests.contrib.djangorestframework.app.views.UserViewSet' + assert sp.error == 1 + assert sp.span_type == 'web' + assert sp.get_tag('http.method') == 'GET' + assert_span_http_status_code(sp, 500) + assert sp.get_tag('error.msg') == 'Authentication credentials were not provided.' + assert 'NotAuthenticated' in sp.get_tag('error.stack') diff --git a/tests/contrib/dogpile_cache/__init__.py b/tests/contrib/dogpile_cache/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/dogpile_cache/test_tracing.py b/tests/contrib/dogpile_cache/test_tracing.py new file mode 100644 index 0000000000..1548bf24e1 --- /dev/null +++ b/tests/contrib/dogpile_cache/test_tracing.py @@ -0,0 +1,182 @@ +import dogpile +import pytest + +from ddtrace import Pin +from ddtrace.contrib.dogpile_cache.patch import patch, unpatch + +from tests.test_tracer import get_dummy_tracer + + +@pytest.fixture +def tracer(): + return get_dummy_tracer() + + +@pytest.fixture +def region(tracer): + patch() + # Setup a simple dogpile cache region for testing. + # The backend is trivial so we can use memory to simplify test setup. + test_region = dogpile.cache.make_region(name="TestRegion") + test_region.configure("dogpile.cache.memory") + Pin.override(dogpile.cache, tracer=tracer) + return test_region + + +@pytest.fixture(autouse=True) +def cleanup(): + yield + unpatch() + + +@pytest.fixture +def single_cache(region): + @region.cache_on_arguments() + def fn(x): + return x * 2 + + return fn + + +@pytest.fixture +def multi_cache(region): + @region.cache_multi_on_arguments() + def fn(*x): + return [i * 2 for i in x] + + return fn + + +def test_doesnt_trace_with_no_pin(tracer, single_cache, multi_cache): + # No pin is set + unpatch() + + assert single_cache(1) == 2 + assert tracer.writer.pop_traces() == [] + + assert multi_cache(2, 3) == [4, 6] + assert tracer.writer.pop_traces() == [] + + +def test_doesnt_trace_with_disabled_pin(tracer, single_cache, multi_cache): + tracer.enabled = False + + assert single_cache(1) == 2 + assert tracer.writer.pop_traces() == [] + + assert multi_cache(2, 3) == [4, 6] + assert tracer.writer.pop_traces() == [] + + +def test_traces_get_or_create(tracer, single_cache): + assert single_cache(1) == 2 + traces = tracer.writer.pop_traces() + assert len(traces) == 1 + spans = traces[0] + assert len(spans) == 1 + span = spans[0] + assert span.name == "dogpile.cache" + assert span.resource == "get_or_create" + assert span.meta["key"] == "tests.contrib.dogpile_cache.test_tracing:fn|1" + assert span.meta["hit"] == "False" + assert span.meta["expired"] == "True" + assert span.meta["backend"] == "MemoryBackend" + assert span.meta["region"] == "TestRegion" + + # Now the results should be cached. + assert single_cache(1) == 2 + traces = tracer.writer.pop_traces() + assert len(traces) == 1 + spans = traces[0] + assert len(spans) == 1 + span = spans[0] + assert span.name == "dogpile.cache" + assert span.resource == "get_or_create" + assert span.meta["key"] == "tests.contrib.dogpile_cache.test_tracing:fn|1" + assert span.meta["hit"] == "True" + assert span.meta["expired"] == "False" + assert span.meta["backend"] == "MemoryBackend" + assert span.meta["region"] == "TestRegion" + + +def test_traces_get_or_create_multi(tracer, multi_cache): + assert multi_cache(2, 3) == [4, 6] + traces = tracer.writer.pop_traces() + assert len(traces) == 1 + spans = traces[0] + assert len(spans) == 1 + span = spans[0] + assert span.meta["keys"] == ( + "['tests.contrib.dogpile_cache.test_tracing:fn|2', " + "'tests.contrib.dogpile_cache.test_tracing:fn|3']" + ) + assert span.meta["hit"] == "False" + assert span.meta["expired"] == "True" + assert span.meta["backend"] == "MemoryBackend" + assert span.meta["region"] == "TestRegion" + + # Partial hit + assert multi_cache(2, 4) == [4, 8] + traces = tracer.writer.pop_traces() + assert len(traces) == 1 + spans = traces[0] + assert len(spans) == 1 + span = spans[0] + assert span.meta["keys"] == ( + "['tests.contrib.dogpile_cache.test_tracing:fn|2', " + "'tests.contrib.dogpile_cache.test_tracing:fn|4']" + ) + assert span.meta["hit"] == "False" + assert span.meta["expired"] == "True" + assert span.meta["backend"] == "MemoryBackend" + assert span.meta["region"] == "TestRegion" + + # Full hit + assert multi_cache(2, 4) == [4, 8] + traces = tracer.writer.pop_traces() + assert len(traces) == 1 + spans = traces[0] + assert len(spans) == 1 + span = spans[0] + assert span.meta["keys"] == ( + "['tests.contrib.dogpile_cache.test_tracing:fn|2', " + "'tests.contrib.dogpile_cache.test_tracing:fn|4']" + ) + assert span.meta["hit"] == "True" + assert span.meta["expired"] == "False" + assert span.meta["backend"] == "MemoryBackend" + assert span.meta["region"] == "TestRegion" + + +class TestInnerFunctionCalls(object): + def single_cache(self, x): + return x * 2 + + def multi_cache(self, *x): + return [i * 2 for i in x] + + def test_calls_inner_functions_correctly(self, region, mocker): + """ This ensures the get_or_create behavior of dogpile is not altered. """ + spy_single_cache = mocker.spy(self, "single_cache") + spy_multi_cache = mocker.spy(self, "multi_cache") + + single_cache = region.cache_on_arguments()(self.single_cache) + multi_cache = region.cache_multi_on_arguments()(self.multi_cache) + + assert 2 == single_cache(1) + spy_single_cache.assert_called_once_with(1) + + # It's now cached - shouldn't need to call the inner function. + spy_single_cache.reset_mock() + assert 2 == single_cache(1) + assert spy_single_cache.call_count == 0 + + assert [6, 8] == multi_cache(3, 4) + spy_multi_cache.assert_called_once_with(3, 4) + + # Partial hit. Only the "new" key should be passed to the inner function. + spy_multi_cache.reset_mock() + assert [6, 10] == multi_cache(3, 5) + spy_multi_cache.assert_called_once_with(5) + + # Full hit. No call to inner function. + spy_multi_cache.reset_mock() + assert [6, 10] == multi_cache(3, 5) + assert spy_single_cache.call_count == 0 diff --git a/tests/contrib/elasticsearch/__init__.py b/tests/contrib/elasticsearch/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/elasticsearch/test.py b/tests/contrib/elasticsearch/test.py new file mode 100644 index 0000000000..3d705b3e46 --- /dev/null +++ b/tests/contrib/elasticsearch/test.py @@ -0,0 +1,381 @@ +import datetime +import unittest + +# project +from ddtrace import Pin +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.ext import http +from ddtrace.contrib.elasticsearch import get_traced_transport +from ddtrace.contrib.elasticsearch.elasticsearch import elasticsearch +from ddtrace.contrib.elasticsearch.patch import patch, unpatch + +# testing +from tests.opentracer.utils import init_tracer +from ..config import ELASTICSEARCH_CONFIG +from ...test_tracer import get_dummy_tracer +from ...base import BaseTracerTestCase +from ...utils import assert_span_http_status_code + + +class ElasticsearchTest(unittest.TestCase): + """ + Elasticsearch integration test suite. + Need a running ElasticSearch + """ + ES_INDEX = 'ddtrace_index' + ES_TYPE = 'ddtrace_type' + + TEST_SERVICE = 'test' + TEST_PORT = str(ELASTICSEARCH_CONFIG['port']) + + def setUp(self): + """Prepare ES""" + es = elasticsearch.Elasticsearch(port=ELASTICSEARCH_CONFIG['port']) + es.indices.delete(index=self.ES_INDEX, ignore=[400, 404]) + + def tearDown(self): + """Clean ES""" + es = elasticsearch.Elasticsearch(port=ELASTICSEARCH_CONFIG['port']) + es.indices.delete(index=self.ES_INDEX, ignore=[400, 404]) + + def test_elasticsearch(self): + """Test the elasticsearch integration + + All in this for now. Will split it later. + """ + tracer = get_dummy_tracer() + writer = tracer.writer + transport_class = get_traced_transport( + datadog_tracer=tracer, + datadog_service=self.TEST_SERVICE, + ) + + es = elasticsearch.Elasticsearch(transport_class=transport_class, port=ELASTICSEARCH_CONFIG['port']) + + # Test index creation + mapping = {'mapping': {'properties': {'created': {'type': 'date', 'format': 'yyyy-MM-dd'}}}} + es.indices.create(index=self.ES_INDEX, ignore=400, body=mapping) + + spans = writer.pop() + assert spans + assert len(spans) == 1 + span = spans[0] + assert span.service == self.TEST_SERVICE + assert span.name == 'elasticsearch.query' + assert span.span_type == 'elasticsearch' + assert span.error == 0 + assert span.get_tag('elasticsearch.method') == 'PUT' + assert span.get_tag('elasticsearch.url') == '/%s' % self.ES_INDEX + assert span.resource == 'PUT /%s' % self.ES_INDEX + + # Put data + args = {'index': self.ES_INDEX, 'doc_type': self.ES_TYPE} + es.index(id=10, body={'name': 'ten', 'created': datetime.date(2016, 1, 1)}, **args) + es.index(id=11, body={'name': 'eleven', 'created': datetime.date(2016, 2, 1)}, **args) + es.index(id=12, body={'name': 'twelve', 'created': datetime.date(2016, 3, 1)}, **args) + + spans = writer.pop() + assert spans + assert len(spans) == 3 + span = spans[0] + assert span.error == 0 + assert span.get_tag('elasticsearch.method') == 'PUT' + assert span.get_tag('elasticsearch.url') == '/%s/%s/%s' % (self.ES_INDEX, self.ES_TYPE, 10) + assert span.resource == 'PUT /%s/%s/?' % (self.ES_INDEX, self.ES_TYPE) + + # Make the data available + es.indices.refresh(index=self.ES_INDEX) + + spans = writer.pop() + assert spans, spans + assert len(spans) == 1 + span = spans[0] + assert span.resource == 'POST /%s/_refresh' % self.ES_INDEX + assert span.get_tag('elasticsearch.method') == 'POST' + assert span.get_tag('elasticsearch.url') == '/%s/_refresh' % self.ES_INDEX + + # Search data + result = es.search( + sort=['name:desc'], size=100, + body={'query': {'match_all': {}}}, + **args + ) + + assert len(result['hits']['hits']) == 3, result + + spans = writer.pop() + assert spans + assert len(spans) == 1 + span = spans[0] + assert span.resource == 'GET /%s/%s/_search' % (self.ES_INDEX, self.ES_TYPE) + assert span.get_tag('elasticsearch.method') == 'GET' + assert span.get_tag('elasticsearch.url') == '/%s/%s/_search' % (self.ES_INDEX, self.ES_TYPE) + + assert span.get_tag('elasticsearch.body').replace(' ', '') == '{"query":{"match_all":{}}}' + assert set(span.get_tag('elasticsearch.params').split('&')) == {'sort=name%3Adesc', 'size=100'} + assert http.QUERY_STRING not in span.meta + + self.assertTrue(span.get_metric('elasticsearch.took') > 0) + + # Search by type not supported by default json encoder + query = {'range': {'created': {'gte': datetime.date(2016, 2, 1)}}} + result = es.search(size=100, body={'query': query}, **args) + + assert len(result['hits']['hits']) == 2, result + + # Raise error 404 with a non existent index + writer.pop() + try: + es.get(index='non_existent_index', id=100, doc_type='_all') + assert 'error_not_raised' == 'elasticsearch.exceptions.TransportError' + except elasticsearch.exceptions.TransportError: + spans = writer.pop() + assert spans + span = spans[0] + assert_span_http_status_code(span, 404) + + # Raise error 400, the index 10 is created twice + try: + es.indices.create(index=10) + es.indices.create(index=10) + assert 'error_not_raised' == 'elasticsearch.exceptions.TransportError' + except elasticsearch.exceptions.TransportError: + spans = writer.pop() + assert spans + span = spans[-1] + assert_span_http_status_code(span, 400) + + # Drop the index, checking it won't raise exception on success or failure + es.indices.delete(index=self.ES_INDEX, ignore=[400, 404]) + es.indices.delete(index=self.ES_INDEX, ignore=[400, 404]) + + def test_elasticsearch_ot(self): + """Shortened OpenTracing version of test_elasticsearch.""" + tracer = get_dummy_tracer() + writer = tracer.writer + ot_tracer = init_tracer('my_svc', tracer) + + transport_class = get_traced_transport( + datadog_tracer=tracer, + datadog_service=self.TEST_SERVICE, + ) + + es = elasticsearch.Elasticsearch(transport_class=transport_class, port=ELASTICSEARCH_CONFIG['port']) + + # Test index creation + mapping = {'mapping': {'properties': {'created': {'type': 'date', 'format': 'yyyy-MM-dd'}}}} + + with ot_tracer.start_active_span('ot_span'): + es.indices.create(index=self.ES_INDEX, ignore=400, body=mapping) + + spans = writer.pop() + assert spans + assert len(spans) == 2 + ot_span, dd_span = spans + + # confirm the parenting + assert ot_span.parent_id is None + assert dd_span.parent_id == ot_span.span_id + + assert ot_span.service == 'my_svc' + assert ot_span.resource == 'ot_span' + + assert dd_span.service == self.TEST_SERVICE + assert dd_span.name == 'elasticsearch.query' + assert dd_span.span_type == 'elasticsearch' + assert dd_span.error == 0 + assert dd_span.get_tag('elasticsearch.method') == 'PUT' + assert dd_span.get_tag('elasticsearch.url') == '/%s' % self.ES_INDEX + assert dd_span.resource == 'PUT /%s' % self.ES_INDEX + + +class ElasticsearchPatchTest(BaseTracerTestCase): + """ + Elasticsearch integration test suite. + Need a running ElasticSearch. + Test cases with patching. + Will merge when patching will be the default/only way. + """ + ES_INDEX = 'ddtrace_index' + ES_TYPE = 'ddtrace_type' + + TEST_SERVICE = 'test' + TEST_PORT = str(ELASTICSEARCH_CONFIG['port']) + + def setUp(self): + """Prepare ES""" + super(ElasticsearchPatchTest, self).setUp() + + es = elasticsearch.Elasticsearch(port=ELASTICSEARCH_CONFIG['port']) + Pin(service=self.TEST_SERVICE, tracer=self.tracer).onto(es.transport) + mapping = {'mapping': {'properties': {'created': {'type': 'date', 'format': 'yyyy-MM-dd'}}}} + es.indices.create(index=self.ES_INDEX, ignore=400, body=mapping) + + patch() + + self.es = es + + def tearDown(self): + """Clean ES""" + super(ElasticsearchPatchTest, self).tearDown() + + unpatch() + self.es.indices.delete(index=self.ES_INDEX, ignore=[400, 404]) + + def test_elasticsearch(self): + es = self.es + mapping = {'mapping': {'properties': {'created': {'type': 'date', 'format': 'yyyy-MM-dd'}}}} + es.indices.create(index=self.ES_INDEX, ignore=400, body=mapping) + + spans = self.get_spans() + self.reset() + assert spans, spans + assert len(spans) == 1 + span = spans[0] + assert span.service == self.TEST_SERVICE + assert span.name == 'elasticsearch.query' + assert span.span_type == 'elasticsearch' + assert span.error == 0 + assert span.get_tag('elasticsearch.method') == 'PUT' + assert span.get_tag('elasticsearch.url') == '/%s' % self.ES_INDEX + assert span.resource == 'PUT /%s' % self.ES_INDEX + + args = {'index': self.ES_INDEX, 'doc_type': self.ES_TYPE} + es.index(id=10, body={'name': 'ten', 'created': datetime.date(2016, 1, 1)}, **args) + es.index(id=11, body={'name': 'eleven', 'created': datetime.date(2016, 2, 1)}, **args) + es.index(id=12, body={'name': 'twelve', 'created': datetime.date(2016, 3, 1)}, **args) + + spans = self.get_spans() + self.reset() + assert spans, spans + assert len(spans) == 3 + span = spans[0] + assert span.error == 0 + assert span.get_tag('elasticsearch.method') == 'PUT' + assert span.get_tag('elasticsearch.url') == '/%s/%s/%s' % (self.ES_INDEX, self.ES_TYPE, 10) + assert span.resource == 'PUT /%s/%s/?' % (self.ES_INDEX, self.ES_TYPE) + + args = {'index': self.ES_INDEX, 'doc_type': self.ES_TYPE} + es.indices.refresh(index=self.ES_INDEX) + + spans = self.get_spans() + self.reset() + assert spans, spans + assert len(spans) == 1 + span = spans[0] + assert span.resource == 'POST /%s/_refresh' % self.ES_INDEX + assert span.get_tag('elasticsearch.method') == 'POST' + assert span.get_tag('elasticsearch.url') == '/%s/_refresh' % self.ES_INDEX + + # search data + args = {'index': self.ES_INDEX, 'doc_type': self.ES_TYPE} + with self.override_http_config('elasticsearch', dict(trace_query_string=True)): + es.index(id=10, body={'name': 'ten', 'created': datetime.date(2016, 1, 1)}, **args) + es.index(id=11, body={'name': 'eleven', 'created': datetime.date(2016, 2, 1)}, **args) + es.index(id=12, body={'name': 'twelve', 'created': datetime.date(2016, 3, 1)}, **args) + result = es.search( + sort=['name:desc'], + size=100, + body={'query': {'match_all': {}}}, + **args + ) + + assert len(result['hits']['hits']) == 3, result + spans = self.get_spans() + self.reset() + assert spans, spans + assert len(spans) == 4 + span = spans[-1] + assert span.resource == 'GET /%s/%s/_search' % (self.ES_INDEX, self.ES_TYPE) + assert span.get_tag('elasticsearch.method') == 'GET' + assert span.get_tag('elasticsearch.url') == '/%s/%s/_search' % (self.ES_INDEX, self.ES_TYPE) + assert span.get_tag('elasticsearch.body').replace(' ', '') == '{"query":{"match_all":{}}}' + assert set(span.get_tag('elasticsearch.params').split('&')) == {'sort=name%3Adesc', 'size=100'} + assert set(span.get_tag(http.QUERY_STRING).split('&')) == {'sort=name%3Adesc', 'size=100'} + + self.assertTrue(span.get_metric('elasticsearch.took') > 0) + + # Search by type not supported by default json encoder + query = {'range': {'created': {'gte': datetime.date(2016, 2, 1)}}} + result = es.search(size=100, body={'query': query}, **args) + + assert len(result['hits']['hits']) == 2, result + + def test_analytics_default(self): + es = self.es + mapping = {'mapping': {'properties': {'created': {'type': 'date', 'format': 'yyyy-MM-dd'}}}} + es.indices.create(index=self.ES_INDEX, ignore=400, body=mapping) + + spans = self.get_spans() + self.assertEqual(len(spans), 1) + self.assertIsNone(spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + def test_analytics_with_rate(self): + with self.override_config( + 'elasticsearch', + dict(analytics_enabled=True, analytics_sample_rate=0.5) + ): + es = self.es + mapping = {'mapping': {'properties': {'created': {'type': 'date', 'format': 'yyyy-MM-dd'}}}} + es.indices.create(index=self.ES_INDEX, ignore=400, body=mapping) + + spans = self.get_spans() + self.assertEqual(len(spans), 1) + self.assertEqual(spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY), 0.5) + + def test_analytics_without_rate(self): + with self.override_config( + 'elasticsearch', + dict(analytics_enabled=True) + ): + es = self.es + mapping = {'mapping': {'properties': {'created': {'type': 'date', 'format': 'yyyy-MM-dd'}}}} + es.indices.create(index=self.ES_INDEX, ignore=400, body=mapping) + + spans = self.get_spans() + self.assertEqual(len(spans), 1) + self.assertEqual(spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY), 1.0) + + def test_patch_unpatch(self): + # Test patch idempotence + patch() + patch() + + es = elasticsearch.Elasticsearch(port=ELASTICSEARCH_CONFIG['port']) + Pin(service=self.TEST_SERVICE, tracer=self.tracer).onto(es.transport) + + # Test index creation + es.indices.create(index=self.ES_INDEX, ignore=400) + + spans = self.get_spans() + self.reset() + assert spans, spans + assert len(spans) == 1 + + # Test unpatch + self.reset() + unpatch() + + es = elasticsearch.Elasticsearch(port=ELASTICSEARCH_CONFIG['port']) + + # Test index creation + es.indices.create(index=self.ES_INDEX, ignore=400) + + spans = self.get_spans() + self.reset() + assert not spans, spans + + # Test patch again + self.reset() + patch() + + es = elasticsearch.Elasticsearch(port=ELASTICSEARCH_CONFIG['port']) + Pin(service=self.TEST_SERVICE, tracer=self.tracer).onto(es.transport) + + # Test index creation + es.indices.create(index=self.ES_INDEX, ignore=400) + + spans = self.get_spans() + self.reset() + assert spans, spans + assert len(spans) == 1 diff --git a/tests/contrib/falcon/__init__.py b/tests/contrib/falcon/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/falcon/app/__init__.py b/tests/contrib/falcon/app/__init__.py new file mode 100644 index 0000000000..457c3b50bc --- /dev/null +++ b/tests/contrib/falcon/app/__init__.py @@ -0,0 +1 @@ +from .app import get_app # noqa diff --git a/tests/contrib/falcon/app/app.py b/tests/contrib/falcon/app/app.py new file mode 100644 index 0000000000..4f1cb65d74 --- /dev/null +++ b/tests/contrib/falcon/app/app.py @@ -0,0 +1,20 @@ +import falcon + +from ddtrace.contrib.falcon import TraceMiddleware + +from . import resources + + +def get_app(tracer=None, distributed_tracing=True): + # initialize a traced Falcon application + middleware = [TraceMiddleware( + tracer, distributed_tracing=distributed_tracing)] if tracer else [] + app = falcon.API(middleware=middleware) + + # add resource routing + app.add_route('/200', resources.Resource200()) + app.add_route('/201', resources.Resource201()) + app.add_route('/500', resources.Resource500()) + app.add_route('/exception', resources.ResourceException()) + app.add_route('/not_found', resources.ResourceNotFound()) + return app diff --git a/tests/contrib/falcon/app/resources.py b/tests/contrib/falcon/app/resources.py new file mode 100644 index 0000000000..132456baa4 --- /dev/null +++ b/tests/contrib/falcon/app/resources.py @@ -0,0 +1,40 @@ +import falcon + + +class Resource200(object): + """Throw a handled exception here to ensure our use of + set_traceback() doesn't affect 200s + """ + def on_get(self, req, resp, **kwargs): + try: + 1 / 0 + except Exception: + pass + + resp.status = falcon.HTTP_200 + resp.body = 'Success' + resp.append_header('my-response-header', 'my_response_value') + + +class Resource201(object): + def on_post(self, req, resp, **kwargs): + resp.status = falcon.HTTP_201 + resp.body = 'Success' + + +class Resource500(object): + def on_get(self, req, resp, **kwargs): + resp.status = falcon.HTTP_500 + resp.body = 'Failure' + + +class ResourceException(object): + def on_get(self, req, resp, **kwargs): + raise Exception('Ouch!') + + +class ResourceNotFound(object): + def on_get(self, req, resp, **kwargs): + # simulate that the endpoint is hit but raise a 404 because + # the object isn't found in the database + raise falcon.HTTPNotFound() diff --git a/tests/contrib/falcon/test_autopatch.py b/tests/contrib/falcon/test_autopatch.py new file mode 100644 index 0000000000..4dd9e0b91b --- /dev/null +++ b/tests/contrib/falcon/test_autopatch.py @@ -0,0 +1,36 @@ +from falcon import testing + +import ddtrace + +from ...base import BaseTracerTestCase +from .app import get_app +from .test_suite import FalconTestCase + + +class AutoPatchTestCase(BaseTracerTestCase, testing.TestCase, FalconTestCase): + + # Added because falcon 1.3 and 1.4 test clients (falcon.testing.client.TestClient) expect this property to be + # defined. It would be initialized in the constructor, but we call it here like in 'TestClient.__init__(self, None)' + # because falcon 1.0.x does not have such module and would fail. Once we stop supporting falcon 1.0.x then we can + # use the cleaner __init__ invocation + _default_headers = None + + def setUp(self): + super(AutoPatchTestCase, self).setUp() + + self._service = 'my-falcon' + + # Since most integrations do `from ddtrace import tracer` we cannot update do `ddtrace.tracer = self.tracer` + self.original_writer = ddtrace.tracer.writer + ddtrace.tracer.writer = self.tracer.writer + self.tracer = ddtrace.tracer + + # build a test app without adding a tracer middleware; + # reconfigure the global tracer since the autopatch mode + # uses it + self.api = get_app(tracer=None) + + def tearDown(self): + super(AutoPatchTestCase, self).tearDown() + + ddtrace.tracer.writer = self.original_writer diff --git a/tests/contrib/falcon/test_distributed_tracing.py b/tests/contrib/falcon/test_distributed_tracing.py new file mode 100644 index 0000000000..809563f88c --- /dev/null +++ b/tests/contrib/falcon/test_distributed_tracing.py @@ -0,0 +1,52 @@ +from falcon import testing +from tests.test_tracer import get_dummy_tracer + +from .app import get_app + + +class DistributedTracingTestCase(testing.TestCase): + """Executes tests using the manual instrumentation so a middleware + is explicitly added. + """ + + def setUp(self): + super(DistributedTracingTestCase, self).setUp() + self._service = 'falcon' + self.tracer = get_dummy_tracer() + self.api = get_app(tracer=self.tracer) + + def test_distributred_tracing(self): + headers = { + 'x-datadog-trace-id': '100', + 'x-datadog-parent-id': '42', + } + out = self.simulate_get('/200', headers=headers) + assert out.status_code == 200 + assert out.content.decode('utf-8') == 'Success' + + traces = self.tracer.writer.pop_traces() + + assert len(traces) == 1 + assert len(traces[0]) == 1 + + assert traces[0][0].parent_id == 42 + assert traces[0][0].trace_id == 100 + + def test_distributred_tracing_disabled(self): + self.tracer = get_dummy_tracer() + self.api = get_app(tracer=self.tracer, distributed_tracing=False) + headers = { + 'x-datadog-trace-id': '100', + 'x-datadog-parent-id': '42', + } + out = self.simulate_get('/200', headers=headers) + assert out.status_code == 200 + assert out.content.decode('utf-8') == 'Success' + + traces = self.tracer.writer.pop_traces() + + assert len(traces) == 1 + assert len(traces[0]) == 1 + + assert traces[0][0].parent_id != 42 + assert traces[0][0].trace_id != 100 diff --git a/tests/contrib/falcon/test_middleware.py b/tests/contrib/falcon/test_middleware.py new file mode 100644 index 0000000000..1218b05c0c --- /dev/null +++ b/tests/contrib/falcon/test_middleware.py @@ -0,0 +1,17 @@ +from falcon import testing + +from .app import get_app +from .test_suite import FalconTestCase +from ...base import BaseTracerTestCase + + +class MiddlewareTestCase(BaseTracerTestCase, testing.TestCase, FalconTestCase): + """Executes tests using the manual instrumentation so a middleware + is explicitly added. + """ + def setUp(self): + super(MiddlewareTestCase, self).setUp() + + # build a test app with a dummy tracer + self._service = 'falcon' + self.api = get_app(tracer=self.tracer) diff --git a/tests/contrib/falcon/test_suite.py b/tests/contrib/falcon/test_suite.py new file mode 100644 index 0000000000..6797ce62d3 --- /dev/null +++ b/tests/contrib/falcon/test_suite.py @@ -0,0 +1,266 @@ +from ddtrace import config +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.ext import errors as errx, http as httpx + +from tests.opentracer.utils import init_tracer +from ...utils import assert_span_http_status_code + + +class FalconTestCase(object): + """Falcon mixin test case that includes all possible tests. If you need + to add new tests, add them here so that they're shared across manual + and automatic instrumentation. + """ + def test_404(self): + out = self.simulate_get('/fake_endpoint') + assert out.status_code == 404 + + traces = self.tracer.writer.pop_traces() + assert len(traces) == 1 + assert len(traces[0]) == 1 + span = traces[0][0] + assert span.name == 'falcon.request' + assert span.service == self._service + assert span.resource == 'GET 404' + assert_span_http_status_code(span, 404) + assert span.get_tag(httpx.URL) == 'http://falconframework.org/fake_endpoint' + assert httpx.QUERY_STRING not in span.meta + assert span.parent_id is None + + def test_exception(self): + try: + self.simulate_get('/exception') + except Exception: + pass + else: + assert 0 + + traces = self.tracer.writer.pop_traces() + assert len(traces) == 1 + assert len(traces[0]) == 1 + span = traces[0][0] + assert span.name == 'falcon.request' + assert span.service == self._service + assert span.resource == 'GET tests.contrib.falcon.app.resources.ResourceException' + assert_span_http_status_code(span, 500) + assert span.get_tag(httpx.URL) == 'http://falconframework.org/exception' + assert span.parent_id is None + + def test_200(self, query_string=''): + out = self.simulate_get('/200', query_string=query_string) + assert out.status_code == 200 + assert out.content.decode('utf-8') == 'Success' + + traces = self.tracer.writer.pop_traces() + assert len(traces) == 1 + assert len(traces[0]) == 1 + span = traces[0][0] + assert span.name == 'falcon.request' + assert span.service == self._service + assert span.resource == 'GET tests.contrib.falcon.app.resources.Resource200' + assert_span_http_status_code(span, 200) + fqs = ('?' + query_string) if query_string else '' + assert span.get_tag(httpx.URL) == 'http://falconframework.org/200' + fqs + if config.falcon.trace_query_string: + assert span.get_tag(httpx.QUERY_STRING) == query_string + else: + assert httpx.QUERY_STRING not in span.meta + assert span.parent_id is None + assert span.span_type == 'web' + + def test_200_qs(self): + return self.test_200('foo=bar') + + def test_200_multi_qs(self): + return self.test_200('foo=bar&foo=baz&x=y') + + def test_200_qs_trace(self): + with self.override_http_config('falcon', dict(trace_query_string=True)): + return self.test_200('foo=bar') + + def test_200_multi_qs_trace(self): + with self.override_http_config('falcon', dict(trace_query_string=True)): + return self.test_200('foo=bar&foo=baz&x=y') + + def test_analytics_global_on_integration_default(self): + """ + When making a request + When an integration trace search is not event sample rate is not set and globally trace search is enabled + We expect the root span to have the appropriate tag + """ + with self.override_global_config(dict(analytics_enabled=True)): + out = self.simulate_get('/200') + self.assertEqual(out.status_code, 200) + self.assertEqual(out.content.decode('utf-8'), 'Success') + + self.assert_structure( + dict(name='falcon.request', metrics={ANALYTICS_SAMPLE_RATE_KEY: 1.0}) + ) + + def test_analytics_global_on_integration_on(self): + """ + When making a request + When an integration trace search is enabled and sample rate is set and globally trace search is enabled + We expect the root span to have the appropriate tag + """ + with self.override_global_config(dict(analytics_enabled=True)): + with self.override_config('falcon', dict(analytics_enabled=True, analytics_sample_rate=0.5)): + out = self.simulate_get('/200') + self.assertEqual(out.status_code, 200) + self.assertEqual(out.content.decode('utf-8'), 'Success') + + self.assert_structure( + dict(name='falcon.request', metrics={ANALYTICS_SAMPLE_RATE_KEY: 0.5}) + ) + + def test_analytics_global_off_integration_default(self): + """ + When making a request + When an integration trace search is not set and sample rate is set and globally trace search is disabled + We expect the root span to not include tag + """ + with self.override_global_config(dict(analytics_enabled=False)): + out = self.simulate_get('/200') + self.assertEqual(out.status_code, 200) + self.assertEqual(out.content.decode('utf-8'), 'Success') + + root = self.get_root_span() + self.assertIsNone(root.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + def test_analytics_global_off_integration_on(self): + """ + When making a request + When an integration trace search is enabled and sample rate is set and globally trace search is disabled + We expect the root span to have the appropriate tag + """ + with self.override_global_config(dict(analytics_enabled=False)): + with self.override_config('falcon', dict(analytics_enabled=True, analytics_sample_rate=0.5)): + out = self.simulate_get('/200') + self.assertEqual(out.status_code, 200) + self.assertEqual(out.content.decode('utf-8'), 'Success') + + self.assert_structure( + dict(name='falcon.request', metrics={ANALYTICS_SAMPLE_RATE_KEY: 0.5}) + ) + + def test_201(self): + out = self.simulate_post('/201') + assert out.status_code == 201 + assert out.content.decode('utf-8') == 'Success' + + traces = self.tracer.writer.pop_traces() + assert len(traces) == 1 + assert len(traces[0]) == 1 + span = traces[0][0] + assert span.name == 'falcon.request' + assert span.service == self._service + assert span.resource == 'POST tests.contrib.falcon.app.resources.Resource201' + assert_span_http_status_code(span, 201) + assert span.get_tag(httpx.URL) == 'http://falconframework.org/201' + assert span.parent_id is None + + def test_500(self): + out = self.simulate_get('/500') + assert out.status_code == 500 + assert out.content.decode('utf-8') == 'Failure' + + traces = self.tracer.writer.pop_traces() + assert len(traces) == 1 + assert len(traces[0]) == 1 + span = traces[0][0] + assert span.name == 'falcon.request' + assert span.service == self._service + assert span.resource == 'GET tests.contrib.falcon.app.resources.Resource500' + assert_span_http_status_code(span, 500) + assert span.get_tag(httpx.URL) == 'http://falconframework.org/500' + assert span.parent_id is None + + def test_404_exception(self): + out = self.simulate_get('/not_found') + assert out.status_code == 404 + + traces = self.tracer.writer.pop_traces() + assert len(traces) == 1 + assert len(traces[0]) == 1 + span = traces[0][0] + assert span.name == 'falcon.request' + assert span.service == self._service + assert span.resource == 'GET tests.contrib.falcon.app.resources.ResourceNotFound' + assert_span_http_status_code(span, 404) + assert span.get_tag(httpx.URL) == 'http://falconframework.org/not_found' + assert span.parent_id is None + + def test_404_exception_no_stacktracer(self): + # it should not have the stacktrace when a 404 exception is raised + out = self.simulate_get('/not_found') + assert out.status_code == 404 + + traces = self.tracer.writer.pop_traces() + assert len(traces) == 1 + assert len(traces[0]) == 1 + span = traces[0][0] + assert span.name == 'falcon.request' + assert span.service == self._service + assert_span_http_status_code(span, 404) + assert span.get_tag(errx.ERROR_TYPE) is None + assert span.parent_id is None + + def test_200_ot(self): + """OpenTracing version of test_200.""" + ot_tracer = init_tracer('my_svc', self.tracer) + + with ot_tracer.start_active_span('ot_span'): + out = self.simulate_get('/200') + + assert out.status_code == 200 + assert out.content.decode('utf-8') == 'Success' + + traces = self.tracer.writer.pop_traces() + assert len(traces) == 1 + assert len(traces[0]) == 2 + ot_span, dd_span = traces[0] + + # confirm the parenting + assert ot_span.parent_id is None + assert dd_span.parent_id == ot_span.span_id + + assert ot_span.service == 'my_svc' + assert ot_span.resource == 'ot_span' + + assert dd_span.name == 'falcon.request' + assert dd_span.service == self._service + assert dd_span.resource == 'GET tests.contrib.falcon.app.resources.Resource200' + assert_span_http_status_code(dd_span, 200) + assert dd_span.get_tag(httpx.URL) == 'http://falconframework.org/200' + + def test_falcon_request_hook(self): + @config.falcon.hooks.on('request') + def on_falcon_request(span, request, response): + span.set_tag('my.custom', 'tag') + + out = self.simulate_get('/200') + assert out.status_code == 200 + assert out.content.decode('utf-8') == 'Success' + + traces = self.tracer.writer.pop_traces() + assert len(traces) == 1 + assert len(traces[0]) == 1 + span = traces[0][0] + assert span.get_tag('http.request.headers.my_header') is None + assert span.get_tag('http.response.headers.my_response_header') is None + + assert span.name == 'falcon.request' + + assert span.get_tag('my.custom') == 'tag' + + def test_http_header_tracing(self): + with self.override_config('falcon', {}): + config.falcon.http.trace_headers(['my-header', 'my-response-header']) + self.simulate_get('/200', headers={'my-header': 'my_value'}) + traces = self.tracer.writer.pop_traces() + + assert len(traces) == 1 + assert len(traces[0]) == 1 + span = traces[0][0] + assert span.get_tag('http.request.headers.my-header') == 'my_value' + assert span.get_tag('http.response.headers.my-response-header') == 'my_response_value' diff --git a/tests/contrib/flask/__init__.py b/tests/contrib/flask/__init__.py new file mode 100644 index 0000000000..582f0d4489 --- /dev/null +++ b/tests/contrib/flask/__init__.py @@ -0,0 +1,47 @@ +from ddtrace import Pin +from ddtrace.contrib.flask import patch, unpatch +import flask +from ddtrace.vendor import wrapt + +from ...base import BaseTracerTestCase + + +class BaseFlaskTestCase(BaseTracerTestCase): + def setUp(self): + super(BaseFlaskTestCase, self).setUp() + + patch() + + self.app = flask.Flask(__name__, template_folder="test_templates/") + self.client = self.app.test_client() + Pin.override(self.app, tracer=self.tracer) + + def tearDown(self): + # Remove any remaining spans + self.tracer.writer.pop() + + # Unpatch Flask + unpatch() + + def get_spans(self): + return self.tracer.writer.pop() + + def assert_is_wrapped(self, obj): + self.assertTrue(isinstance(obj, wrapt.ObjectProxy), "{} is not wrapped".format(obj)) + + def assert_is_not_wrapped(self, obj): + self.assertFalse(isinstance(obj, wrapt.ObjectProxy), "{} is wrapped".format(obj)) + + def find_span_by_name(self, spans, name, required=True): + """Helper to find the first span with a given name from a list""" + span = next((s for s in spans if s.name == name), None) + if required: + self.assertIsNotNone(span, "could not find span with name {}".format(name)) + return span + + def find_span_parent(self, spans, span, required=True): + """Helper to search for a span's parent in a given list of spans""" + parent = next((s for s in spans if s.span_id == span.parent_id), None) + if required: + self.assertIsNotNone(parent, "could not find parent span {}".format(span)) + return parent diff --git a/tests/contrib/flask/static/test.txt b/tests/contrib/flask/static/test.txt new file mode 100644 index 0000000000..f11db5cd24 --- /dev/null +++ b/tests/contrib/flask/static/test.txt @@ -0,0 +1 @@ +Hello Flask diff --git a/tests/contrib/flask/test_blueprint.py b/tests/contrib/flask/test_blueprint.py new file mode 100644 index 0000000000..c0ed7bc297 --- /dev/null +++ b/tests/contrib/flask/test_blueprint.py @@ -0,0 +1,155 @@ +import flask + +from ddtrace import Pin +from ddtrace.contrib.flask import unpatch + +from . import BaseFlaskTestCase + + +class FlaskBlueprintTestCase(BaseFlaskTestCase): + def test_patch(self): + """ + When we patch Flask + Then ``flask.Blueprint.register`` is patched + Then ``flask.Blueprint.add_url_rule`` is patched + """ + # DEV: We call `patch` in `setUp` + self.assert_is_wrapped(flask.Blueprint.register) + self.assert_is_wrapped(flask.Blueprint.add_url_rule) + + def test_unpatch(self): + """ + When we unpatch Flask + Then ``flask.Blueprint.register`` is not patched + Then ``flask.Blueprint.add_url_rule`` is not patched + """ + unpatch() + self.assert_is_not_wrapped(flask.Blueprint.register) + self.assert_is_not_wrapped(flask.Blueprint.add_url_rule) + + def test_blueprint_register(self): + """ + When we register a ``flask.Blueprint`` to a ``flask.Flask`` + When no ``Pin`` is attached to the ``Blueprint`` + We attach the pin from the ``flask.Flask`` app + When a ``Pin`` is manually added to the ``Blueprint`` + We do not use the ``flask.Flask`` app ``Pin`` + """ + bp = flask.Blueprint('pinned', __name__) + Pin(service='flask-bp', tracer=self.tracer).onto(bp) + + # DEV: This is more common than calling ``flask.Blueprint.register`` directly + self.app.register_blueprint(bp) + pin = Pin.get_from(bp) + self.assertEqual(pin.service, 'flask-bp') + + bp = flask.Blueprint('not-pinned', __name__) + self.app.register_blueprint(bp) + pin = Pin.get_from(bp) + self.assertEqual(pin.service, 'flask') + + def test_blueprint_add_url_rule(self): + """ + When we call ``flask.Blueprint.add_url_rule`` + When the ``Blueprint`` has a ``Pin`` attached + We clone the Blueprint's ``Pin`` to the view + When the ``Blueprint`` does not have a ``Pin`` attached + We do not attach a ``Pin`` to the func + """ + # When the Blueprint has a Pin attached + bp = flask.Blueprint('pinned', __name__) + Pin(service='flask-bp', tracer=self.tracer).onto(bp) + + @bp.route('/') + def test_view(): + pass + + # Assert the view func has a `Pin` attached with the Blueprint's service name + pin = Pin.get_from(test_view) + self.assertIsNotNone(pin) + self.assertEqual(pin.service, 'flask-bp') + + # When the Blueprint does not have a Pin attached + bp = flask.Blueprint('not-pinned', __name__) + + @bp.route('/') + def test_view(): + pass + + # Assert the view does not have a `Pin` attached + pin = Pin.get_from(test_view) + self.assertIsNone(pin) + + def test_blueprint_request(self): + """ + When making a request to a Blueprint's endpoint + We create the expected spans + """ + bp = flask.Blueprint('bp', __name__) + + @bp.route('/') + def test(): + return 'test' + + self.app.register_blueprint(bp) + + # Request the endpoint + self.client.get('/') + + # Only extract the span we care about + # DEV: Making a request creates a bunch of lifecycle spans, + # ignore them, we test them elsewhere + span = self.find_span_by_name(self.get_spans(), 'bp.test') + self.assertEqual(span.service, 'flask') + self.assertEqual(span.name, 'bp.test') + self.assertEqual(span.resource, '/') + self.assertEqual(span.meta, dict()) + + def test_blueprint_request_pin_override(self): + """ + When making a request to a Blueprint's endpoint + When we attach a ``Pin`` to the Blueprint + We create the expected spans + """ + bp = flask.Blueprint('bp', __name__) + Pin.override(bp, service='flask-bp', tracer=self.tracer) + + @bp.route('/') + def test(): + return 'test' + + self.app.register_blueprint(bp) + + # Request the endpoint + self.client.get('/') + + # Only extract the span we care about + # DEV: Making a request creates a bunch of lifecycle spans, + # ignore them, we test them elsewhere + span = self.find_span_by_name(self.get_spans(), 'bp.test') + self.assertEqual(span.service, 'flask-bp') + self.assertEqual(span.name, 'bp.test') + self.assertEqual(span.resource, '/') + self.assertEqual(span.meta, dict()) + + def test_blueprint_request_pin_disabled(self): + """ + When making a request to a Blueprint's endpoint + When the app's ``Pin`` is disabled + We do not create any spans + """ + pin = Pin.get_from(self.app) + pin.tracer.enabled = False + + bp = flask.Blueprint('bp', __name__) + + @bp.route('/') + def test(): + return 'test' + + self.app.register_blueprint(bp) + + # Request the endpoint + self.client.get('/') + + self.assertEqual(len(self.get_spans()), 0) diff --git a/tests/contrib/flask/test_errorhandler.py b/tests/contrib/flask/test_errorhandler.py new file mode 100644 index 0000000000..bd4d875910 --- /dev/null +++ b/tests/contrib/flask/test_errorhandler.py @@ -0,0 +1,293 @@ +import flask + +from . import BaseFlaskTestCase +from ...utils import assert_span_http_status_code + + +class FlaskErrorhandlerTestCase(BaseFlaskTestCase): + def test_default_404_handler(self): + """ + When making a 404 request + And no user defined error handler is defined + We create the expected spans + """ + # Make our 404 request + res = self.client.get('/unknown') + self.assertEqual(res.status_code, 404) + + spans = self.get_spans() + + req_span = self.find_span_by_name(spans, 'flask.request') + dispatch_span = self.find_span_by_name(spans, 'flask.dispatch_request') + user_ex_span = self.find_span_by_name(spans, 'flask.handle_user_exception') + http_ex_span = self.find_span_by_name(spans, 'flask.handle_http_exception') + + # flask.request span + self.assertEqual(req_span.error, 0) + assert_span_http_status_code(req_span, 404) + self.assertIsNone(req_span.get_tag('flask.endpoint')) + self.assertIsNone(req_span.get_tag('flask.url_rule')) + + # flask.dispatch_request span + self.assertEqual(dispatch_span.error, 1) + error_msg = dispatch_span.get_tag('error.msg') + self.assertTrue(error_msg.startswith('404 Not Found')) + error_stack = dispatch_span.get_tag('error.stack') + self.assertTrue(error_stack.startswith('Traceback (most recent call last):')) + error_type = dispatch_span.get_tag('error.type') + self.assertEqual(error_type, 'werkzeug.exceptions.NotFound') + + # flask.handle_user_exception span + self.assertEqual(user_ex_span.meta, dict()) + self.assertEqual(user_ex_span.error, 0) + + # flask.handle_http_exception span + self.assertEqual(http_ex_span.meta, dict()) + self.assertEqual(http_ex_span.error, 0) + + def test_abort_500(self): + """ + When making a 500 request + And no user defined error handler is defined + We create the expected spans + """ + @self.app.route('/500') + def endpoint_500(): + flask.abort(500) + + # Make our 500 request + res = self.client.get('/500') + self.assertEqual(res.status_code, 500) + + spans = self.get_spans() + + req_span = self.find_span_by_name(spans, 'flask.request') + dispatch_span = self.find_span_by_name(spans, 'flask.dispatch_request') + endpoint_span = self.find_span_by_name(spans, 'tests.contrib.flask.test_errorhandler.endpoint_500') + user_ex_span = self.find_span_by_name(spans, 'flask.handle_user_exception') + http_ex_span = self.find_span_by_name(spans, 'flask.handle_http_exception') + + # flask.request span + self.assertEqual(req_span.error, 1) + + assert_span_http_status_code(req_span, 500) + self.assertEqual(req_span.get_tag('flask.endpoint'), 'endpoint_500') + self.assertEqual(req_span.get_tag('flask.url_rule'), '/500') + + # flask.dispatch_request span + self.assertEqual(dispatch_span.error, 1) + error_msg = dispatch_span.get_tag('error.msg') + self.assertTrue(error_msg.startswith('500 Internal Server Error')) + error_stack = dispatch_span.get_tag('error.stack') + self.assertTrue(error_stack.startswith('Traceback (most recent call last):')) + error_type = dispatch_span.get_tag('error.type') + self.assertEqual(error_type, 'werkzeug.exceptions.InternalServerError') + + # tests.contrib.flask.test_errorhandler.endpoint_500 span + self.assertEqual(endpoint_span.error, 1) + error_msg = endpoint_span.get_tag('error.msg') + self.assertTrue(error_msg.startswith('500 Internal Server Error')) + error_stack = endpoint_span.get_tag('error.stack') + self.assertTrue(error_stack.startswith('Traceback (most recent call last):')) + error_type = endpoint_span.get_tag('error.type') + self.assertEqual(error_type, 'werkzeug.exceptions.InternalServerError') + + # flask.handle_user_exception span + self.assertEqual(user_ex_span.meta, dict()) + self.assertEqual(user_ex_span.error, 0) + + # flask.handle_http_exception span + self.assertEqual(http_ex_span.meta, dict()) + self.assertEqual(http_ex_span.error, 0) + + def test_abort_500_custom_handler(self): + """ + When making a 500 request + And a user defined error handler is defined + We create the expected spans + """ + @self.app.errorhandler(500) + def handle_500(e): + return 'whoops', 200 + + @self.app.route('/500') + def endpoint_500(): + flask.abort(500) + + # Make our 500 request + res = self.client.get('/500') + self.assertEqual(res.status_code, 200) + self.assertEqual(res.data, b'whoops') + + spans = self.get_spans() + + req_span = self.find_span_by_name(spans, 'flask.request') + dispatch_span = self.find_span_by_name(spans, 'flask.dispatch_request') + endpoint_span = self.find_span_by_name(spans, 'tests.contrib.flask.test_errorhandler.endpoint_500') + handler_span = self.find_span_by_name(spans, 'tests.contrib.flask.test_errorhandler.handle_500') + user_ex_span = self.find_span_by_name(spans, 'flask.handle_user_exception') + http_ex_span = self.find_span_by_name(spans, 'flask.handle_http_exception') + + # flask.request span + self.assertEqual(req_span.error, 0) + assert_span_http_status_code(req_span, 200) + self.assertEqual(req_span.get_tag('flask.endpoint'), 'endpoint_500') + self.assertEqual(req_span.get_tag('flask.url_rule'), '/500') + + # flask.dispatch_request span + self.assertEqual(dispatch_span.error, 1) + error_msg = dispatch_span.get_tag('error.msg') + self.assertTrue(error_msg.startswith('500 Internal Server Error')) + error_stack = dispatch_span.get_tag('error.stack') + self.assertTrue(error_stack.startswith('Traceback (most recent call last):')) + error_type = dispatch_span.get_tag('error.type') + self.assertEqual(error_type, 'werkzeug.exceptions.InternalServerError') + + # tests.contrib.flask.test_errorhandler.endpoint_500 span + self.assertEqual(endpoint_span.error, 1) + error_msg = endpoint_span.get_tag('error.msg') + self.assertTrue(error_msg.startswith('500 Internal Server Error')) + error_stack = endpoint_span.get_tag('error.stack') + self.assertTrue(error_stack.startswith('Traceback (most recent call last):')) + error_type = endpoint_span.get_tag('error.type') + self.assertEqual(error_type, 'werkzeug.exceptions.InternalServerError') + + # tests.contrib.flask.test_errorhandler.handle_500 span + self.assertEqual(handler_span.error, 0) + self.assertIsNone(handler_span.get_tag('error.msg')) + self.assertIsNone(handler_span.get_tag('error.stack')) + self.assertIsNone(handler_span.get_tag('error.type')) + + # flask.handle_user_exception span + self.assertEqual(user_ex_span.meta, dict()) + self.assertEqual(user_ex_span.error, 0) + + # flask.handle_http_exception span + self.assertEqual(http_ex_span.meta, dict()) + self.assertEqual(http_ex_span.error, 0) + + def test_raise_user_exception(self): + """ + When raising a custom user exception + And no user defined error handler is defined + We create the expected spans + """ + class FlaskTestException(Exception): + pass + + @self.app.route('/error') + def endpoint_error(): + raise FlaskTestException('custom error message') + + # Make our 500 request + res = self.client.get('/error') + self.assertEqual(res.status_code, 500) + + spans = self.get_spans() + + req_span = self.find_span_by_name(spans, 'flask.request') + dispatch_span = self.find_span_by_name(spans, 'flask.dispatch_request') + endpoint_span = self.find_span_by_name(spans, 'tests.contrib.flask.test_errorhandler.endpoint_error') + user_ex_span = self.find_span_by_name(spans, 'flask.handle_user_exception') + http_ex_span = self.find_span_by_name(spans, 'flask.handle_http_exception', required=False) + + # flask.request span + self.assertEqual(req_span.error, 1) + assert_span_http_status_code(req_span, 500) + self.assertEqual(req_span.get_tag('flask.endpoint'), 'endpoint_error') + self.assertEqual(req_span.get_tag('flask.url_rule'), '/error') + + # flask.dispatch_request span + self.assertEqual(dispatch_span.error, 1) + error_msg = dispatch_span.get_tag('error.msg') + self.assertTrue(error_msg.startswith('custom error message')) + error_stack = dispatch_span.get_tag('error.stack') + self.assertTrue(error_stack.startswith('Traceback (most recent call last):')) + error_type = dispatch_span.get_tag('error.type') + self.assertEqual(error_type, 'tests.contrib.flask.test_errorhandler.FlaskTestException') + + # tests.contrib.flask.test_errorhandler.endpoint_500 span + self.assertEqual(endpoint_span.error, 1) + error_msg = endpoint_span.get_tag('error.msg') + self.assertTrue(error_msg.startswith('custom error message')) + error_stack = endpoint_span.get_tag('error.stack') + self.assertTrue(error_stack.startswith('Traceback (most recent call last):')) + error_type = endpoint_span.get_tag('error.type') + self.assertEqual(error_type, 'tests.contrib.flask.test_errorhandler.FlaskTestException') + + # flask.handle_user_exception span + self.assertEqual(user_ex_span.error, 1) + error_msg = user_ex_span.get_tag('error.msg') + self.assertTrue(error_msg.startswith('custom error message')) + error_stack = user_ex_span.get_tag('error.stack') + self.assertTrue(error_stack.startswith('Traceback (most recent call last):')) + error_type = user_ex_span.get_tag('error.type') + self.assertEqual(error_type, 'tests.contrib.flask.test_errorhandler.FlaskTestException') + + # flask.handle_http_exception span + self.assertIsNone(http_ex_span) + + def test_raise_user_exception_handler(self): + """ + When raising a custom user exception + And a user defined error handler is defined + We create the expected spans + """ + class FlaskTestException(Exception): + pass + + @self.app.errorhandler(FlaskTestException) + def handle_error(e): + return 'whoops', 200 + + @self.app.route('/error') + def endpoint_error(): + raise FlaskTestException('custom error message') + + # Make our 500 request + res = self.client.get('/error') + self.assertEqual(res.status_code, 200) + self.assertEqual(res.data, b'whoops') + + spans = self.get_spans() + + req_span = self.find_span_by_name(spans, 'flask.request') + dispatch_span = self.find_span_by_name(spans, 'flask.dispatch_request') + endpoint_span = self.find_span_by_name(spans, 'tests.contrib.flask.test_errorhandler.endpoint_error') + handler_span = self.find_span_by_name(spans, 'tests.contrib.flask.test_errorhandler.handle_error') + user_ex_span = self.find_span_by_name(spans, 'flask.handle_user_exception') + http_ex_span = self.find_span_by_name(spans, 'flask.handle_http_exception', required=False) + + # flask.request span + self.assertEqual(req_span.error, 0) + assert_span_http_status_code(req_span, 200) + self.assertEqual(req_span.get_tag('flask.endpoint'), 'endpoint_error') + self.assertEqual(req_span.get_tag('flask.url_rule'), '/error') + + # flask.dispatch_request span + self.assertEqual(dispatch_span.error, 1) + error_msg = dispatch_span.get_tag('error.msg') + self.assertTrue(error_msg.startswith('custom error message')) + error_stack = dispatch_span.get_tag('error.stack') + self.assertTrue(error_stack.startswith('Traceback (most recent call last):')) + error_type = dispatch_span.get_tag('error.type') + self.assertEqual(error_type, 'tests.contrib.flask.test_errorhandler.FlaskTestException') + + # tests.contrib.flask.test_errorhandler.endpoint_500 span + self.assertEqual(endpoint_span.error, 1) + error_msg = endpoint_span.get_tag('error.msg') + self.assertTrue(error_msg.startswith('custom error message')) + error_stack = endpoint_span.get_tag('error.stack') + self.assertTrue(error_stack.startswith('Traceback (most recent call last):')) + error_type = endpoint_span.get_tag('error.type') + self.assertEqual(error_type, 'tests.contrib.flask.test_errorhandler.FlaskTestException') + + # tests.contrib.flask.test_errorhandler.handle_error span + self.assertEqual(handler_span.error, 0) + + # flask.handle_user_exception span + self.assertEqual(user_ex_span.error, 0) + self.assertEqual(user_ex_span.meta, dict()) + + # flask.handle_http_exception span + self.assertIsNone(http_ex_span) diff --git a/tests/contrib/flask/test_flask_helpers.py b/tests/contrib/flask/test_flask_helpers.py new file mode 100644 index 0000000000..847dee8396 --- /dev/null +++ b/tests/contrib/flask/test_flask_helpers.py @@ -0,0 +1,121 @@ +import flask + +from ddtrace import Pin +from ddtrace.contrib.flask import unpatch +from ddtrace.compat import StringIO + +from . import BaseFlaskTestCase + + +class FlaskHelpersTestCase(BaseFlaskTestCase): + def test_patch(self): + """ + When we patch Flask + Then ``flask.jsonify`` is patched + Then ``flask.send_file`` is patched + """ + # DEV: We call `patch` in `setUp` + self.assert_is_wrapped(flask.jsonify) + self.assert_is_wrapped(flask.send_file) + + def test_unpatch(self): + """ + When we unpatch Flask + Then ``flask.jsonify`` is unpatched + Then ``flask.send_file`` is unpatched + """ + unpatch() + self.assert_is_not_wrapped(flask.jsonify) + self.assert_is_not_wrapped(flask.send_file) + + def test_jsonify(self): + """ + When we call a patched ``flask.jsonify`` + We create a span as expected + """ + # DEV: `jsonify` requires a active app and request contexts + with self.app.app_context(): + with self.app.test_request_context('/'): + response = flask.jsonify(dict(key='value')) + self.assertTrue(isinstance(response, flask.Response)) + self.assertEqual(response.status_code, 200) + + # 1 span for `jsonify` + # 1 span for tearing down the app context we created + # 1 span for tearing down the request context we created + spans = self.get_spans() + self.assertEqual(len(spans), 3) + + self.assertIsNone(spans[0].service) + self.assertEqual(spans[0].name, 'flask.jsonify') + self.assertEqual(spans[0].resource, 'flask.jsonify') + assert spans[0].meta == dict() + + self.assertEqual(spans[1].name, 'flask.do_teardown_request') + self.assertEqual(spans[2].name, 'flask.do_teardown_appcontext') + + def test_jsonify_pin_disabled(self): + """ + When we call a patched ``flask.jsonify`` + When the ``flask.Flask`` ``Pin`` is disabled + We do not create a span + """ + # Disable the pin on the app + pin = Pin.get_from(self.app) + pin.tracer.enabled = False + + # DEV: `jsonify` requires a active app and request contexts + with self.app.app_context(): + with self.app.test_request_context('/'): + response = flask.jsonify(dict(key='value')) + self.assertTrue(isinstance(response, flask.Response)) + self.assertEqual(response.status_code, 200) + + self.assertEqual(len(self.get_spans()), 0) + + def test_send_file(self): + """ + When calling a patched ``flask.send_file`` + We create the expected spans + """ + fp = StringIO('static file') + + with self.app.app_context(): + with self.app.test_request_context('/'): + # DEV: Flask >= (0, 12, 0) tries to infer mimetype, so set explicitly + response = flask.send_file(fp, mimetype='text/plain') + self.assertTrue(isinstance(response, flask.Response)) + self.assertEqual(response.status_code, 200) + + # 1 for `send_file` + # 1 for tearing down the request context we created + # 1 for tearing down the app context we created + spans = self.get_spans() + self.assertEqual(len(spans), 3) + + self.assertEqual(spans[0].service, 'flask') + self.assertEqual(spans[0].name, 'flask.send_file') + self.assertEqual(spans[0].resource, 'flask.send_file') + assert spans[0].meta == dict() + + self.assertEqual(spans[1].name, 'flask.do_teardown_request') + self.assertEqual(spans[2].name, 'flask.do_teardown_appcontext') + + def test_send_file_pin_disabled(self): + """ + When calling a patched ``flask.send_file`` + When the app's ``Pin`` has been disabled + We do not create any spans + """ + pin = Pin.get_from(self.app) + pin.tracer.enabled = False + + fp = StringIO('static file') + with self.app.app_context(): + with self.app.test_request_context('/'): + # DEV: Flask >= (0, 12, 0) tries to infer mimetype, so set explicitly + response = flask.send_file(fp, mimetype='text/plain') + self.assertTrue(isinstance(response, flask.Response)) + self.assertEqual(response.status_code, 200) + + self.assertEqual(len(self.get_spans()), 0) diff --git a/tests/contrib/flask/test_hooks.py b/tests/contrib/flask/test_hooks.py new file mode 100644 index 0000000000..43daaa6f67 --- /dev/null +++ b/tests/contrib/flask/test_hooks.py @@ -0,0 +1,469 @@ +from flask import Blueprint + +from ddtrace.ext import http +from . import BaseFlaskTestCase +from ...utils import assert_span_http_status_code + + +class FlaskHookTestCase(BaseFlaskTestCase): + def setUp(self): + super(FlaskHookTestCase, self).setUp() + + @self.app.route('/') + def index(): + return 'Hello Flask', 200 + + self.bp = Blueprint(__name__, 'bp') + + @self.bp.route('/bp') + def bp(): + return 'Hello Blueprint', 200 + + def test_before_request(self): + """ + When Flask before_request hook is registered + We create the expected spans + """ + @self.app.before_request + def before_request(): + pass + + req = self.client.get('/') + self.assertEqual(req.status_code, 200) + self.assertEqual(req.data, b'Hello Flask') + + spans = self.get_spans() + self.assertEqual(len(spans), 9) + + # DEV: This will raise an exception if this span doesn't exist + self.find_span_by_name(spans, 'flask.dispatch_request') + + span = self.find_span_by_name(spans, 'tests.contrib.flask.test_hooks.before_request') + parent = self.find_span_parent(spans, span) + + # Assert hook span + self.assertEqual(span.service, 'flask') + self.assertEqual(span.name, 'tests.contrib.flask.test_hooks.before_request') + self.assertEqual(span.resource, 'tests.contrib.flask.test_hooks.before_request') + self.assertEqual(span.meta, dict()) + + # Assert correct parent span + self.assertEqual(parent.name, 'flask.preprocess_request') + + def test_before_request_return(self): + """ + When Flask before_request hook is registered + When the hook handles the request + We create the expected spans + """ + @self.app.before_request + def before_request(): + return 'Not Allowed', 401 + + req = self.client.get('/') + self.assertEqual(req.status_code, 401) + self.assertEqual(req.data, b'Not Allowed') + + spans = self.get_spans() + self.assertEqual(len(spans), 7) + + dispatch = self.find_span_by_name(spans, 'flask.dispatch_request', required=False) + self.assertIsNone(dispatch) + + root = self.find_span_by_name(spans, 'flask.request') + span = self.find_span_by_name(spans, 'tests.contrib.flask.test_hooks.before_request') + parent = self.find_span_parent(spans, span) + + # Assert root hook + # DEV: This is the main thing we need to check with this test + self.assertEqual(root.service, 'flask') + self.assertEqual(root.name, 'flask.request') + self.assertEqual(root.resource, 'GET /') + self.assertEqual(root.get_tag('flask.endpoint'), 'index') + self.assertEqual(root.get_tag('flask.url_rule'), '/') + self.assertEqual(root.get_tag('http.method'), 'GET') + assert_span_http_status_code(root, 401) + self.assertEqual(root.get_tag(http.URL), 'http://localhost/') + + # Assert hook span + self.assertEqual(span.service, 'flask') + self.assertEqual(span.name, 'tests.contrib.flask.test_hooks.before_request') + self.assertEqual(span.resource, 'tests.contrib.flask.test_hooks.before_request') + self.assertEqual(span.meta, dict()) + + # Assert correct parent span + self.assertEqual(parent.name, 'flask.preprocess_request') + + def test_before_first_request(self): + """ + When Flask before_first_request hook is registered + We create the expected spans + """ + @self.app.before_first_request + def before_first_request(): + pass + + req = self.client.get('/') + self.assertEqual(req.status_code, 200) + self.assertEqual(req.data, b'Hello Flask') + + spans = self.get_spans() + self.assertEqual(len(spans), 9) + + span = self.find_span_by_name(spans, 'tests.contrib.flask.test_hooks.before_first_request') + parent = self.find_span_parent(spans, span) + + # Assert hook span + self.assertEqual(span.service, 'flask') + self.assertEqual(span.name, 'tests.contrib.flask.test_hooks.before_first_request') + self.assertEqual(span.resource, 'tests.contrib.flask.test_hooks.before_first_request') + self.assertEqual(span.meta, dict()) + + # Assert correct parent span + self.assertEqual(parent.name, 'flask.try_trigger_before_first_request_functions') + + # Make a second request to ensure a span isn't created + req = self.client.get('/') + self.assertEqual(req.status_code, 200) + self.assertEqual(req.data, b'Hello Flask') + + spans = self.get_spans() + self.assertEqual(len(spans), 8) + + span = self.find_span_by_name(spans, 'tests.contrib.flask.test_hooks.before_first_request', required=False) + self.assertIsNone(span) + + def test_after_request(self): + """ + When Flask after_request hook is registered + We create the expected spans + """ + @self.app.after_request + def after_request(response): + return response + + req = self.client.get('/') + self.assertEqual(req.status_code, 200) + self.assertEqual(req.data, b'Hello Flask') + + spans = self.get_spans() + self.assertEqual(len(spans), 9) + + span = self.find_span_by_name(spans, 'tests.contrib.flask.test_hooks.after_request') + parent = self.find_span_parent(spans, span) + + # Assert hook span + self.assertEqual(span.service, 'flask') + self.assertEqual(span.name, 'tests.contrib.flask.test_hooks.after_request') + self.assertEqual(span.resource, 'tests.contrib.flask.test_hooks.after_request') + self.assertEqual(span.meta, dict()) + + # Assert correct parent span + self.assertEqual(parent.name, 'flask.process_response') + + def test_after_request_change_status(self): + """ + When Flask after_request hook is registered + We create the expected spans + """ + @self.app.after_request + def after_request(response): + response.status_code = 401 + return response + + req = self.client.get('/') + self.assertEqual(req.status_code, 401) + self.assertEqual(req.data, b'Hello Flask') + + spans = self.get_spans() + self.assertEqual(len(spans), 9) + + root = self.find_span_by_name(spans, 'flask.request') + span = self.find_span_by_name(spans, 'tests.contrib.flask.test_hooks.after_request') + parent = self.find_span_parent(spans, span) + + # Assert root span + assert_span_http_status_code(root, 401) + + # Assert hook span + self.assertEqual(span.service, 'flask') + self.assertEqual(span.name, 'tests.contrib.flask.test_hooks.after_request') + self.assertEqual(span.resource, 'tests.contrib.flask.test_hooks.after_request') + self.assertEqual(span.meta, dict()) + + # Assert correct parent span + self.assertEqual(parent.name, 'flask.process_response') + + def test_teardown_request(self): + """ + When Flask teardown_request hook is registered + We create the expected spans + """ + @self.app.teardown_request + def teardown_request(request): + pass + + req = self.client.get('/') + self.assertEqual(req.status_code, 200) + self.assertEqual(req.data, b'Hello Flask') + + spans = self.get_spans() + self.assertEqual(len(spans), 9) + + span = self.find_span_by_name(spans, 'tests.contrib.flask.test_hooks.teardown_request') + parent = self.find_span_parent(spans, span) + + # Assert hook span + self.assertEqual(span.service, 'flask') + self.assertEqual(span.name, 'tests.contrib.flask.test_hooks.teardown_request') + self.assertEqual(span.resource, 'tests.contrib.flask.test_hooks.teardown_request') + self.assertEqual(span.meta, dict()) + + # Assert correct parent span + self.assertEqual(parent.name, 'flask.do_teardown_request') + + def test_teardown_appcontext(self): + """ + When Flask teardown_appcontext hook is registered + We create the expected spans + """ + @self.app.teardown_appcontext + def teardown_appcontext(appctx): + pass + + req = self.client.get('/') + self.assertEqual(req.status_code, 200) + self.assertEqual(req.data, b'Hello Flask') + + spans = self.get_spans() + self.assertEqual(len(spans), 9) + + span = self.find_span_by_name(spans, 'tests.contrib.flask.test_hooks.teardown_appcontext') + parent = self.find_span_parent(spans, span) + + # Assert hook span + self.assertEqual(span.service, 'flask') + self.assertEqual(span.name, 'tests.contrib.flask.test_hooks.teardown_appcontext') + self.assertEqual(span.resource, 'tests.contrib.flask.test_hooks.teardown_appcontext') + self.assertEqual(span.meta, dict()) + + # Assert correct parent span + self.assertEqual(parent.name, 'flask.do_teardown_appcontext') + + def test_bp_before_request(self): + """ + When Blueprint before_request hook is registered + We create the expected spans + """ + @self.bp.before_request + def bp_before_request(): + pass + + self.app.register_blueprint(self.bp) + req = self.client.get('/bp') + self.assertEqual(req.status_code, 200) + self.assertEqual(req.data, b'Hello Blueprint') + + spans = self.get_spans() + self.assertEqual(len(spans), 9) + + span = self.find_span_by_name(spans, 'tests.contrib.flask.test_hooks.bp_before_request') + parent = self.find_span_parent(spans, span) + + # Assert hook span + self.assertEqual(span.service, 'flask') + self.assertEqual(span.name, 'tests.contrib.flask.test_hooks.bp_before_request') + self.assertEqual(span.resource, 'tests.contrib.flask.test_hooks.bp_before_request') + self.assertEqual(span.meta, dict()) + + # Assert correct parent span + self.assertEqual(parent.name, 'flask.preprocess_request') + + def test_bp_before_app_request(self): + """ + When Blueprint before_app_request hook is registered + We create the expected spans + """ + @self.bp.before_app_request + def bp_before_app_request(): + pass + + self.app.register_blueprint(self.bp) + req = self.client.get('/') + self.assertEqual(req.status_code, 200) + self.assertEqual(req.data, b'Hello Flask') + + spans = self.get_spans() + self.assertEqual(len(spans), 9) + + span = self.find_span_by_name(spans, 'tests.contrib.flask.test_hooks.bp_before_app_request') + parent = self.find_span_parent(spans, span) + + # Assert hook span + self.assertEqual(span.service, 'flask') + self.assertEqual(span.name, 'tests.contrib.flask.test_hooks.bp_before_app_request') + self.assertEqual(span.resource, 'tests.contrib.flask.test_hooks.bp_before_app_request') + self.assertEqual(span.meta, dict()) + + # Assert correct parent span + self.assertEqual(parent.name, 'flask.preprocess_request') + + def test_before_app_first_request(self): + """ + When Blueprint before_first_request hook is registered + We create the expected spans + """ + @self.bp.before_app_first_request + def bp_before_app_first_request(): + pass + + self.app.register_blueprint(self.bp) + req = self.client.get('/') + self.assertEqual(req.status_code, 200) + self.assertEqual(req.data, b'Hello Flask') + + spans = self.get_spans() + self.assertEqual(len(spans), 9) + + span = self.find_span_by_name(spans, 'tests.contrib.flask.test_hooks.bp_before_app_first_request') + parent = self.find_span_parent(spans, span) + + # Assert hook span + self.assertEqual(span.service, 'flask') + self.assertEqual(span.name, 'tests.contrib.flask.test_hooks.bp_before_app_first_request') + self.assertEqual(span.resource, 'tests.contrib.flask.test_hooks.bp_before_app_first_request') + self.assertEqual(span.meta, dict()) + + # Assert correct parent span + self.assertEqual(parent.name, 'flask.try_trigger_before_first_request_functions') + + # Make a second request to ensure a span isn't created + req = self.client.get('/') + self.assertEqual(req.status_code, 200) + self.assertEqual(req.data, b'Hello Flask') + + spans = self.get_spans() + self.assertEqual(len(spans), 8) + + span = self.find_span_by_name( + spans, + 'tests.contrib.flask.test_hooks.bp_before_app_first_request', + required=False, + ) + self.assertIsNone(span) + + def test_bp_after_request(self): + """ + When Blueprint after_request hook is registered + We create the expected spans + """ + @self.bp.after_request + def bp_after_request(response): + return response + + self.app.register_blueprint(self.bp) + req = self.client.get('/bp') + self.assertEqual(req.status_code, 200) + self.assertEqual(req.data, b'Hello Blueprint') + + spans = self.get_spans() + self.assertEqual(len(spans), 9) + + span = self.find_span_by_name(spans, 'tests.contrib.flask.test_hooks.bp_after_request') + parent = self.find_span_parent(spans, span) + + # Assert hook span + self.assertEqual(span.service, 'flask') + self.assertEqual(span.name, 'tests.contrib.flask.test_hooks.bp_after_request') + self.assertEqual(span.resource, 'tests.contrib.flask.test_hooks.bp_after_request') + self.assertEqual(span.meta, dict()) + + # Assert correct parent span + self.assertEqual(parent.name, 'flask.process_response') + + def test_bp_after_app_request(self): + """ + When Blueprint after_app_request hook is registered + We create the expected spans + """ + @self.bp.after_app_request + def bp_after_app_request(response): + return response + + self.app.register_blueprint(self.bp) + req = self.client.get('/') + self.assertEqual(req.status_code, 200) + self.assertEqual(req.data, b'Hello Flask') + + spans = self.get_spans() + self.assertEqual(len(spans), 9) + + span = self.find_span_by_name(spans, 'tests.contrib.flask.test_hooks.bp_after_app_request') + parent = self.find_span_parent(spans, span) + + # Assert hook span + self.assertEqual(span.service, 'flask') + self.assertEqual(span.name, 'tests.contrib.flask.test_hooks.bp_after_app_request') + self.assertEqual(span.resource, 'tests.contrib.flask.test_hooks.bp_after_app_request') + self.assertEqual(span.meta, dict()) + + # Assert correct parent span + self.assertEqual(parent.name, 'flask.process_response') + + def test_bp_teardown_request(self): + """ + When Blueprint teardown_request hook is registered + We create the expected spans + """ + @self.bp.teardown_request + def bp_teardown_request(request): + pass + + self.app.register_blueprint(self.bp) + req = self.client.get('/bp') + self.assertEqual(req.status_code, 200) + self.assertEqual(req.data, b'Hello Blueprint') + + spans = self.get_spans() + self.assertEqual(len(spans), 9) + + span = self.find_span_by_name(spans, 'tests.contrib.flask.test_hooks.bp_teardown_request') + parent = self.find_span_parent(spans, span) + + # Assert hook span + self.assertEqual(span.service, 'flask') + self.assertEqual(span.name, 'tests.contrib.flask.test_hooks.bp_teardown_request') + self.assertEqual(span.resource, 'tests.contrib.flask.test_hooks.bp_teardown_request') + self.assertEqual(span.meta, dict()) + + # Assert correct parent span + self.assertEqual(parent.name, 'flask.do_teardown_request') + + def test_bp_teardown_app_request(self): + """ + When Blueprint teardown_app_request hook is registered + We create the expected spans + """ + @self.bp.teardown_app_request + def bp_teardown_app_request(request): + pass + + self.app.register_blueprint(self.bp) + req = self.client.get('/') + self.assertEqual(req.status_code, 200) + self.assertEqual(req.data, b'Hello Flask') + + spans = self.get_spans() + self.assertEqual(len(spans), 9) + + span = self.find_span_by_name(spans, 'tests.contrib.flask.test_hooks.bp_teardown_app_request') + parent = self.find_span_parent(spans, span) + + # Assert hook span + self.assertEqual(span.service, 'flask') + self.assertEqual(span.name, 'tests.contrib.flask.test_hooks.bp_teardown_app_request') + self.assertEqual(span.resource, 'tests.contrib.flask.test_hooks.bp_teardown_app_request') + self.assertEqual(span.meta, dict()) + + # Assert correct parent span + self.assertEqual(parent.name, 'flask.do_teardown_request') diff --git a/tests/contrib/flask/test_idempotency.py b/tests/contrib/flask/test_idempotency.py new file mode 100644 index 0000000000..b9c21ffbe0 --- /dev/null +++ b/tests/contrib/flask/test_idempotency.py @@ -0,0 +1,80 @@ +import mock +import unittest + +import flask +from ddtrace.vendor import wrapt + +from ddtrace.contrib.flask import patch, unpatch +from ddtrace.contrib.flask.patch import _w, _u + + +class FlaskIdempotencyTestCase(unittest.TestCase): + def tearDown(self): + # Double check we unpatch after every test + unpatch() + + def assert_is_patched(self): + self.assertTrue(flask._datadog_patch) + self.assertTrue(isinstance(flask.render_template, wrapt.ObjectProxy)) + + def assert_is_not_patched(self): + self.assertFalse(flask._datadog_patch) + self.assertFalse(isinstance(flask.render_template, wrapt.ObjectProxy)) + + def test_datadog_patch(self): + # If we have been patching/testing in other files, + # at least make sure this is where we want it + if hasattr(flask, '_datadog_patch'): + self.assertFalse(flask._datadog_patch) + + # Patching sets `_datadog_patch` to `True` + patch() + self.assert_is_patched() + + # Unpatching sets `_datadog_patch` to `False` + unpatch() + self.assert_is_not_patched() + + # DEV: Use `side_effect` so the original function still gets called + @mock.patch('ddtrace.contrib.flask._patch._w', side_effect=_w) + def test_patch_idempotency(self, _w): + # Ensure we didn't do any patching automatically + _w.assert_not_called() + self.assert_is_not_patched() + + # Patch for the first time + patch() + _w.assert_called() + self.assert_is_patched() + + # Reset the mock so we can assert call count + _w.reset_mock() + + # Call patch a second time + patch() + _w.assert_not_called() + self.assert_is_patched() + + # DEV: Use `side_effect` so the original function still gets called + @mock.patch('ddtrace.contrib.flask._patch._w', side_effect=_w) + @mock.patch('ddtrace.contrib.flask._patch._u', side_effect=_u) + def test_unpatch_idempotency(self, _u, _w): + # We need to patch in order to unpatch + patch() + _w.assert_called() + self.assert_is_patched() + + # Ensure we didn't do any unpatching automatically + _u.assert_not_called() + + unpatch() + _u.assert_called() + self.assert_is_not_patched() + + # Reset the mock so we can assert call count + _u.reset_mock() + + # Call unpatch a second time + unpatch() + _u.assert_not_called() + self.assert_is_not_patched() diff --git a/tests/contrib/flask/test_middleware.py b/tests/contrib/flask/test_middleware.py new file mode 100644 index 0000000000..4261c31678 --- /dev/null +++ b/tests/contrib/flask/test_middleware.py @@ -0,0 +1,387 @@ +# -*- coding: utf-8 -*- +import time +import re + +from unittest import TestCase + +from ddtrace.contrib.flask import TraceMiddleware +from ddtrace.constants import SAMPLING_PRIORITY_KEY +from ddtrace.ext import http, errors + +from tests.opentracer.utils import init_tracer +from .web import create_app +from ...test_tracer import get_dummy_tracer +from ...utils import assert_span_http_status_code + + +class TestFlask(TestCase): + """Ensures Flask is properly instrumented.""" + + def setUp(self): + self.tracer = get_dummy_tracer() + self.flask_app = create_app() + self.traced_app = TraceMiddleware( + self.flask_app, + self.tracer, + service='test.flask.service', + distributed_tracing=True, + ) + + # make the app testable + self.flask_app.config['TESTING'] = True + self.app = self.flask_app.test_client() + + def test_double_instrumentation(self): + # ensure Flask is never instrumented twice when `ddtrace-run` + # and `TraceMiddleware` are used together. `traced_app` MUST + # be assigned otherwise it's not possible to reproduce the + # problem (the test scope must keep a strong reference) + traced_app = TraceMiddleware(self.flask_app, self.tracer) # noqa: F841 + rv = self.app.get('/child') + assert rv.status_code == 200 + spans = self.tracer.writer.pop() + assert len(spans) == 2 + + def test_double_instrumentation_config(self): + # ensure Flask uses the last set configuration to be sure + # there are no breaking changes for who uses `ddtrace-run` + # with the `TraceMiddleware` + TraceMiddleware( + self.flask_app, + self.tracer, + service='new-intake', + distributed_tracing=False, + ) + assert self.flask_app._service == 'new-intake' + assert self.flask_app._use_distributed_tracing is False + rv = self.app.get('/child') + assert rv.status_code == 200 + spans = self.tracer.writer.pop() + assert len(spans) == 2 + + def test_child(self): + start = time.time() + rv = self.app.get('/child') + end = time.time() + # ensure request worked + assert rv.status_code == 200 + assert rv.data == b'child' + # ensure trace worked + spans = self.tracer.writer.pop() + assert len(spans) == 2 + + spans_by_name = {s.name: s for s in spans} + + s = spans_by_name['flask.request'] + assert s.span_id + assert s.trace_id + assert not s.parent_id + assert s.service == 'test.flask.service' + assert s.resource == 'child' + assert s.start >= start + assert s.duration <= end - start + assert s.error == 0 + + c = spans_by_name['child'] + assert c.span_id + assert c.trace_id == s.trace_id + assert c.parent_id == s.span_id + assert c.service == 'test.flask.service' + assert c.resource == 'child' + assert c.start >= start + assert c.duration <= end - start + assert c.error == 0 + + def test_success(self): + start = time.time() + rv = self.app.get('/') + end = time.time() + + # ensure request worked + assert rv.status_code == 200 + assert rv.data == b'hello' + + # ensure trace worked + assert not self.tracer.current_span(), self.tracer.current_span().pprint() + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.service == 'test.flask.service' + assert s.resource == 'index' + assert s.start >= start + assert s.duration <= end - start + assert s.error == 0 + assert_span_http_status_code(s, 200) + assert s.meta.get(http.METHOD) == 'GET' + + services = self.tracer.writer.pop_services() + expected = {} + assert services == expected + + def test_template(self): + start = time.time() + rv = self.app.get('/tmpl') + end = time.time() + + # ensure request worked + assert rv.status_code == 200 + assert rv.data == b'hello earth' + + # ensure trace worked + assert not self.tracer.current_span(), self.tracer.current_span().pprint() + spans = self.tracer.writer.pop() + assert len(spans) == 2 + by_name = {s.name: s for s in spans} + s = by_name['flask.request'] + assert s.service == 'test.flask.service' + assert s.resource == 'tmpl' + assert s.start >= start + assert s.duration <= end - start + assert s.error == 0 + assert_span_http_status_code(s, 200) + assert s.meta.get(http.METHOD) == 'GET' + + t = by_name['flask.template'] + assert t.get_tag('flask.template') == 'test.html' + assert t.parent_id == s.span_id + assert t.trace_id == s.trace_id + assert s.start < t.start < t.start + t.duration < end + + def test_handleme(self): + start = time.time() + rv = self.app.get('/handleme') + end = time.time() + + # ensure request worked + assert rv.status_code == 202 + assert rv.data == b'handled' + + # ensure trace worked + assert not self.tracer.current_span(), self.tracer.current_span().pprint() + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.service == 'test.flask.service' + assert s.resource == 'handle_me' + assert s.start >= start + assert s.duration <= end - start + assert s.error == 0 + assert_span_http_status_code(s, 202) + assert s.meta.get(http.METHOD) == 'GET' + + def test_template_err(self): + start = time.time() + try: + self.app.get('/tmpl/err') + except Exception: + pass + else: + assert 0 + end = time.time() + + # ensure trace worked + assert not self.tracer.current_span(), self.tracer.current_span().pprint() + spans = self.tracer.writer.pop() + assert len(spans) == 1 + by_name = {s.name: s for s in spans} + s = by_name['flask.request'] + assert s.service == 'test.flask.service' + assert s.resource == 'tmpl_err' + assert s.start >= start + assert s.duration <= end - start + assert s.error == 1 + assert_span_http_status_code(s, 500) + assert s.meta.get(http.METHOD) == 'GET' + + def test_template_render_err(self): + start = time.time() + try: + self.app.get('/tmpl/render_err') + except Exception: + pass + else: + assert 0 + end = time.time() + + # ensure trace worked + assert not self.tracer.current_span(), self.tracer.current_span().pprint() + spans = self.tracer.writer.pop() + assert len(spans) == 2 + by_name = {s.name: s for s in spans} + s = by_name['flask.request'] + assert s.service == 'test.flask.service' + assert s.resource == 'tmpl_render_err' + assert s.start >= start + assert s.duration <= end - start + assert s.error == 1 + assert_span_http_status_code(s, 500) + assert s.meta.get(http.METHOD) == 'GET' + t = by_name['flask.template'] + assert t.get_tag('flask.template') == 'render_err.html' + assert t.error == 1 + assert t.parent_id == s.span_id + assert t.trace_id == s.trace_id + + def test_error(self): + start = time.time() + rv = self.app.get('/error') + end = time.time() + + # ensure the request itself worked + assert rv.status_code == 500 + assert rv.data == b'error' + + # ensure the request was traced. + assert not self.tracer.current_span() + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.service == 'test.flask.service' + assert s.resource == 'error' + assert s.start >= start + assert s.duration <= end - start + assert_span_http_status_code(s, 500) + assert s.meta.get(http.METHOD) == 'GET' + + def test_fatal(self): + if not self.traced_app.use_signals: + return + + start = time.time() + try: + self.app.get('/fatal') + except ZeroDivisionError: + pass + else: + assert 0 + end = time.time() + + # ensure the request was traced. + assert not self.tracer.current_span() + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.service == 'test.flask.service' + assert s.resource == 'fatal' + assert s.start >= start + assert s.duration <= end - start + assert_span_http_status_code(s, 500) + assert s.meta.get(http.METHOD) == 'GET' + assert 'ZeroDivisionError' in s.meta.get(errors.ERROR_TYPE), s.meta + assert 'by zero' in s.meta.get(errors.ERROR_MSG) + assert re.search('File ".*/contrib/flask/web.py", line [0-9]+, in fatal', s.meta.get(errors.ERROR_STACK)) + + def test_unicode(self): + start = time.time() + rv = self.app.get(u'/üŋïĉóđē') + end = time.time() + + # ensure request worked + assert rv.status_code == 200 + assert rv.data == b'\xc3\xbc\xc5\x8b\xc3\xaf\xc4\x89\xc3\xb3\xc4\x91\xc4\x93' + + # ensure trace worked + assert not self.tracer.current_span(), self.tracer.current_span().pprint() + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.service == 'test.flask.service' + assert s.resource == u'üŋïĉóđē' + assert s.start >= start + assert s.duration <= end - start + assert s.error == 0 + assert_span_http_status_code(s, 200) + assert s.meta.get(http.METHOD) == 'GET' + assert s.meta.get(http.URL) == u'http://localhost/üŋïĉóđē' + + def test_404(self): + start = time.time() + rv = self.app.get(u'/404/üŋïĉóđē') + end = time.time() + + # ensure that we hit a 404 + assert rv.status_code == 404 + + # ensure trace worked + assert not self.tracer.current_span(), self.tracer.current_span().pprint() + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.service == 'test.flask.service' + assert s.resource == u'404' + assert s.start >= start + assert s.duration <= end - start + assert s.error == 0 + assert_span_http_status_code(s, 404) + assert s.meta.get(http.METHOD) == 'GET' + assert s.meta.get(http.URL) == u'http://localhost/404/üŋïĉóđē' + + def test_propagation(self): + rv = self.app.get('/', headers={ + 'x-datadog-trace-id': '1234', + 'x-datadog-parent-id': '4567', + 'x-datadog-sampling-priority': '2' + }) + + # ensure request worked + assert rv.status_code == 200 + assert rv.data == b'hello' + + # ensure trace worked + assert not self.tracer.current_span(), self.tracer.current_span().pprint() + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + + # ensure the propagation worked well + assert s.trace_id == 1234 + assert s.parent_id == 4567 + assert s.get_metric(SAMPLING_PRIORITY_KEY) == 2 + + def test_custom_span(self): + rv = self.app.get('/custom_span') + assert rv.status_code == 200 + # ensure trace worked + assert not self.tracer.current_span(), self.tracer.current_span().pprint() + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.service == 'test.flask.service' + assert s.resource == 'overridden' + assert s.error == 0 + assert_span_http_status_code(s, 200) + assert s.meta.get(http.METHOD) == 'GET' + + def test_success_200_ot(self): + """OpenTracing version of test_success_200.""" + ot_tracer = init_tracer('my_svc', self.tracer) + writer = self.tracer.writer + + with ot_tracer.start_active_span('ot_span'): + start = time.time() + rv = self.app.get('/') + end = time.time() + + # ensure request worked + assert rv.status_code == 200 + assert rv.data == b'hello' + + # ensure trace worked + assert not self.tracer.current_span(), self.tracer.current_span().pprint() + spans = writer.pop() + assert len(spans) == 2 + ot_span, dd_span = spans + + # confirm the parenting + assert ot_span.parent_id is None + assert dd_span.parent_id == ot_span.span_id + + assert ot_span.resource == 'ot_span' + assert ot_span.service == 'my_svc' + + assert dd_span.resource == 'index' + assert dd_span.start >= start + assert dd_span.duration <= end - start + assert dd_span.error == 0 + assert_span_http_status_code(dd_span, 200) + assert dd_span.meta.get(http.METHOD) == 'GET' diff --git a/tests/contrib/flask/test_request.py b/tests/contrib/flask/test_request.py new file mode 100644 index 0000000000..86c0f5e44b --- /dev/null +++ b/tests/contrib/flask/test_request.py @@ -0,0 +1,771 @@ +# -*- coding: utf-8 -*- +from ddtrace.compat import PY2 +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.contrib.flask.patch import flask_version +from ddtrace.ext import http +from ddtrace.propagation.http import HTTP_HEADER_TRACE_ID, HTTP_HEADER_PARENT_ID +from flask import abort + +from . import BaseFlaskTestCase +from ...utils import assert_span_http_status_code + + +base_exception_name = 'builtins.Exception' +if PY2: + base_exception_name = 'exceptions.Exception' + + +class FlaskRequestTestCase(BaseFlaskTestCase): + def test_request(self): + """ + When making a request + We create the expected spans + """ + @self.app.route('/') + def index(): + return 'Hello Flask', 200 + + res = self.client.get('/') + self.assertEqual(res.status_code, 200) + self.assertEqual(res.data, b'Hello Flask') + + spans = self.get_spans() + self.assertEqual(len(spans), 8) + + # Assert the order of the spans created + self.assertListEqual( + [ + 'flask.request', + 'flask.try_trigger_before_first_request_functions', + 'flask.preprocess_request', + 'flask.dispatch_request', + 'tests.contrib.flask.test_request.index', + 'flask.process_response', + 'flask.do_teardown_request', + 'flask.do_teardown_appcontext', + ], + [s.name for s in spans], + ) + + # Assert span services + for span in spans: + self.assertEqual(span.service, 'flask') + + # Root request span + req_span = spans[0] + self.assertEqual(req_span.service, 'flask') + self.assertEqual(req_span.name, 'flask.request') + self.assertEqual(req_span.resource, 'GET /') + self.assertEqual(req_span.span_type, 'web') + self.assertEqual(req_span.error, 0) + self.assertIsNone(req_span.parent_id) + + # Request tags + self.assertEqual(req_span.get_tag('flask.endpoint'), 'index') + self.assertEqual(req_span.get_tag('flask.url_rule'), '/') + self.assertEqual(req_span.get_tag('http.method'), 'GET') + self.assertEqual(req_span.get_tag(http.URL), 'http://localhost/') + assert_span_http_status_code(req_span, 200) + assert http.QUERY_STRING not in req_span.meta + + # Handler span + handler_span = spans[4] + self.assertEqual(handler_span.service, 'flask') + self.assertEqual(handler_span.name, 'tests.contrib.flask.test_request.index') + self.assertEqual(handler_span.resource, '/') + self.assertEqual(req_span.error, 0) + + def test_request_query_string_trace(self): + """Make sure when making a request that we create the expected spans and capture the query string.""" + @self.app.route('/') + def index(): + return 'Hello Flask', 200 + + with self.override_http_config('flask', dict(trace_query_string=True)): + self.client.get('/?foo=bar&baz=biz') + spans = self.get_spans() + + # Request tags + assert spans[0].get_tag(http.QUERY_STRING) == 'foo=bar&baz=biz' + + def test_analytics_global_on_integration_default(self): + """ + When making a request + When an integration trace search is not event sample rate is not set and globally trace search is enabled + We expect the root span to have the appropriate tag + """ + @self.app.route('/') + def index(): + return 'Hello Flask', 200 + + with self.override_global_config(dict(analytics_enabled=True)): + res = self.client.get('/') + self.assertEqual(res.status_code, 200) + self.assertEqual(res.data, b'Hello Flask') + + root = self.get_root_span() + root.assert_matches( + name='flask.request', + metrics={ + ANALYTICS_SAMPLE_RATE_KEY: 1.0, + }, + ) + + for span in self.spans: + if span == root: + continue + self.assertIsNone(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + def test_analytics_global_on_integration_on(self): + """ + When making a request + When an integration trace search is enabled and sample rate is set and globally trace search is enabled + We expect the root span to have the appropriate tag + """ + @self.app.route('/') + def index(): + return 'Hello Flask', 200 + + with self.override_global_config(dict(analytics_enabled=True)): + with self.override_config('flask', dict(analytics_enabled=True, analytics_sample_rate=0.5)): + res = self.client.get('/') + self.assertEqual(res.status_code, 200) + self.assertEqual(res.data, b'Hello Flask') + + root = self.get_root_span() + root.assert_matches( + name='flask.request', + metrics={ + ANALYTICS_SAMPLE_RATE_KEY: 0.5, + }, + ) + + for span in self.spans: + if span == root: + continue + self.assertIsNone(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + def test_analytics_global_off_integration_default(self): + """ + When making a request + When an integration trace search is not set and sample rate is set and globally trace search is disabled + We expect the root span to not include tag + """ + @self.app.route('/') + def index(): + return 'Hello Flask', 200 + + with self.override_global_config(dict(analytics_enabled=False)): + res = self.client.get('/') + self.assertEqual(res.status_code, 200) + self.assertEqual(res.data, b'Hello Flask') + + root = self.get_root_span() + self.assertIsNone(root.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + for span in self.spans: + if span == root: + continue + self.assertIsNone(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + def test_analytics_global_off_integration_on(self): + """ + When making a request + When an integration trace search is enabled and sample rate is set and globally trace search is disabled + We expect the root span to have the appropriate tag + """ + @self.app.route('/') + def index(): + return 'Hello Flask', 200 + + with self.override_global_config(dict(analytics_enabled=False)): + with self.override_config('flask', dict(analytics_enabled=True, analytics_sample_rate=0.5)): + res = self.client.get('/') + self.assertEqual(res.status_code, 200) + self.assertEqual(res.data, b'Hello Flask') + root = self.get_root_span() + root.assert_matches( + name='flask.request', + metrics={ + ANALYTICS_SAMPLE_RATE_KEY: 0.5, + }, + ) + + for span in self.spans: + if span == root: + continue + self.assertIsNone(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + def test_distributed_tracing(self): + """ + When making a request + When distributed tracing headers are present + We create the expected spans + """ + @self.app.route('/') + def index(): + return 'Hello Flask', 200 + + # Default: distributed tracing enabled + res = self.client.get('/', headers={ + HTTP_HEADER_PARENT_ID: '12345', + HTTP_HEADER_TRACE_ID: '678910', + }) + self.assertEqual(res.status_code, 200) + self.assertEqual(res.data, b'Hello Flask') + + # Assert parent and trace id are properly set on the root span + span = self.find_span_by_name(self.get_spans(), 'flask.request') + self.assertEqual(span.trace_id, 678910) + self.assertEqual(span.parent_id, 12345) + + # Explicitly enable distributed tracing + with self.override_config('flask', dict(distributed_tracing_enabled=True)): + res = self.client.get('/', headers={ + HTTP_HEADER_PARENT_ID: '12345', + HTTP_HEADER_TRACE_ID: '678910', + }) + self.assertEqual(res.status_code, 200) + self.assertEqual(res.data, b'Hello Flask') + + # Assert parent and trace id are properly set on the root span + span = self.find_span_by_name(self.get_spans(), 'flask.request') + self.assertEqual(span.trace_id, 678910) + self.assertEqual(span.parent_id, 12345) + + # With distributed tracing disabled + with self.override_config('flask', dict(distributed_tracing_enabled=False)): + res = self.client.get('/', headers={ + HTTP_HEADER_PARENT_ID: '12345', + HTTP_HEADER_TRACE_ID: '678910', + }) + self.assertEqual(res.status_code, 200) + self.assertEqual(res.data, b'Hello Flask') + + # Assert parent and trace id are properly set on the root span + span = self.find_span_by_name(self.get_spans(), 'flask.request') + self.assertNotEqual(span.trace_id, 678910) + self.assertIsNone(span.parent_id) + + def test_request_query_string(self): + """ + When making a request + When the request contains a query string + We create the expected spans + """ + @self.app.route('/') + def index(): + return 'Hello Flask', 200 + + res = self.client.get('/', query_string=dict(hello='flask')) + self.assertEqual(res.status_code, 200) + self.assertEqual(res.data, b'Hello Flask') + + spans = self.get_spans() + self.assertEqual(len(spans), 8) + + # Assert the order of the spans created + self.assertListEqual( + [ + 'flask.request', + 'flask.try_trigger_before_first_request_functions', + 'flask.preprocess_request', + 'flask.dispatch_request', + 'tests.contrib.flask.test_request.index', + 'flask.process_response', + 'flask.do_teardown_request', + 'flask.do_teardown_appcontext', + ], + [s.name for s in spans], + ) + + # Assert span services + for span in spans: + self.assertEqual(span.service, 'flask') + + # Root request span + req_span = spans[0] + self.assertEqual(req_span.service, 'flask') + self.assertEqual(req_span.name, 'flask.request') + # Note: contains no query string + self.assertEqual(req_span.resource, 'GET /') + self.assertEqual(req_span.span_type, 'web') + self.assertEqual(req_span.error, 0) + self.assertIsNone(req_span.parent_id) + + # Request tags + self.assertEqual(req_span.get_tag('flask.endpoint'), 'index') + # Note: contains no query string + self.assertEqual(req_span.get_tag('flask.url_rule'), '/') + self.assertEqual(req_span.get_tag('http.method'), 'GET') + # Note: contains no query string + self.assertEqual(req_span.get_tag(http.URL), 'http://localhost/') + assert_span_http_status_code(req_span, 200) + + # Handler span + handler_span = spans[4] + self.assertEqual(handler_span.service, 'flask') + self.assertEqual(handler_span.name, 'tests.contrib.flask.test_request.index') + # Note: contains no query string + self.assertEqual(handler_span.resource, '/') + self.assertEqual(req_span.error, 0) + + def test_request_unicode(self): + """ + When making a request + When the url contains unicode + We create the expected spans + """ + @self.app.route(u'/üŋïĉóđē') + def unicode(): + return 'üŋïĉóđē', 200 + + res = self.client.get(u'/üŋïĉóđē') + self.assertEqual(res.status_code, 200) + self.assertEqual(res.data, b'\xc3\xbc\xc5\x8b\xc3\xaf\xc4\x89\xc3\xb3\xc4\x91\xc4\x93') + + spans = self.get_spans() + self.assertEqual(len(spans), 8) + + # Assert the order of the spans created + self.assertListEqual( + [ + 'flask.request', + 'flask.try_trigger_before_first_request_functions', + 'flask.preprocess_request', + 'flask.dispatch_request', + 'tests.contrib.flask.test_request.unicode', + 'flask.process_response', + 'flask.do_teardown_request', + 'flask.do_teardown_appcontext', + ], + [s.name for s in spans], + ) + + # Assert span services + for span in spans: + self.assertEqual(span.service, 'flask') + + # Root request span + req_span = spans[0] + self.assertEqual(req_span.service, 'flask') + self.assertEqual(req_span.name, 'flask.request') + self.assertEqual(req_span.resource, u'GET /üŋïĉóđē') + self.assertEqual(req_span.span_type, 'web') + self.assertEqual(req_span.error, 0) + self.assertIsNone(req_span.parent_id) + + # Request tags + self.assertEqual(req_span.get_tag('flask.endpoint'), 'unicode') + self.assertEqual(req_span.get_tag('flask.url_rule'), u'/üŋïĉóđē') + self.assertEqual(req_span.get_tag('http.method'), 'GET') + self.assertEqual(req_span.get_tag(http.URL), u'http://localhost/üŋïĉóđē') + assert_span_http_status_code(req_span, 200) + + # Handler span + handler_span = spans[4] + self.assertEqual(handler_span.service, 'flask') + self.assertEqual(handler_span.name, 'tests.contrib.flask.test_request.unicode') + self.assertEqual(handler_span.resource, u'/üŋïĉóđē') + self.assertEqual(req_span.error, 0) + + def test_request_404(self): + """ + When making a request + When the requested endpoint was not found + We create the expected spans + """ + res = self.client.get('/not-found') + self.assertEqual(res.status_code, 404) + + spans = self.get_spans() + self.assertEqual(len(spans), 9) + + # Assert the order of the spans created + self.assertListEqual( + [ + 'flask.request', + 'flask.try_trigger_before_first_request_functions', + 'flask.preprocess_request', + 'flask.dispatch_request', + 'flask.handle_user_exception', + 'flask.handle_http_exception', + 'flask.process_response', + 'flask.do_teardown_request', + 'flask.do_teardown_appcontext', + ], + [s.name for s in spans], + ) + + # Assert span services + for span in spans: + self.assertEqual(span.service, 'flask') + + # Root request span + req_span = spans[0] + self.assertEqual(req_span.service, 'flask') + self.assertEqual(req_span.name, 'flask.request') + self.assertEqual(req_span.resource, 'GET 404') + self.assertEqual(req_span.span_type, 'web') + self.assertEqual(req_span.error, 0) + self.assertIsNone(req_span.parent_id) + + # Request tags + self.assertEqual(req_span.get_tag('http.method'), 'GET') + self.assertEqual(req_span.get_tag(http.URL), 'http://localhost/not-found') + assert_span_http_status_code(req_span, 404) + + # Dispatch span + dispatch_span = spans[3] + self.assertEqual(dispatch_span.service, 'flask') + self.assertEqual(dispatch_span.name, 'flask.dispatch_request') + self.assertEqual(dispatch_span.resource, 'flask.dispatch_request') + self.assertEqual(dispatch_span.error, 1) + self.assertTrue(dispatch_span.get_tag('error.msg').startswith('404 Not Found')) + self.assertTrue(dispatch_span.get_tag('error.stack').startswith('Traceback')) + self.assertEqual(dispatch_span.get_tag('error.type'), 'werkzeug.exceptions.NotFound') + + def test_request_abort_404(self): + """ + When making a request + When the requested endpoint calls `abort(404)` + We create the expected spans + """ + @self.app.route('/not-found') + def not_found(): + abort(404) + + res = self.client.get('/not-found') + self.assertEqual(res.status_code, 404) + + spans = self.get_spans() + self.assertEqual(len(spans), 10) + + # Assert the order of the spans created + self.assertListEqual( + [ + 'flask.request', + 'flask.try_trigger_before_first_request_functions', + 'flask.preprocess_request', + 'flask.dispatch_request', + 'tests.contrib.flask.test_request.not_found', + 'flask.handle_user_exception', + 'flask.handle_http_exception', + 'flask.process_response', + 'flask.do_teardown_request', + 'flask.do_teardown_appcontext', + ], + [s.name for s in spans], + ) + + # Assert span services + for span in spans: + self.assertEqual(span.service, 'flask') + + # Root request span + req_span = spans[0] + self.assertEqual(req_span.service, 'flask') + self.assertEqual(req_span.name, 'flask.request') + self.assertEqual(req_span.resource, 'GET /not-found') + self.assertEqual(req_span.span_type, 'web') + self.assertEqual(req_span.error, 0) + self.assertIsNone(req_span.parent_id) + + # Request tags + self.assertEqual(req_span.get_tag('http.method'), 'GET') + self.assertEqual(req_span.get_tag(http.URL), 'http://localhost/not-found') + assert_span_http_status_code(req_span, 404) + self.assertEqual(req_span.get_tag('flask.endpoint'), 'not_found') + self.assertEqual(req_span.get_tag('flask.url_rule'), '/not-found') + + # Dispatch span + dispatch_span = spans[3] + self.assertEqual(dispatch_span.service, 'flask') + self.assertEqual(dispatch_span.name, 'flask.dispatch_request') + self.assertEqual(dispatch_span.resource, 'flask.dispatch_request') + self.assertEqual(dispatch_span.error, 1) + self.assertTrue(dispatch_span.get_tag('error.msg').startswith('404 Not Found')) + self.assertTrue(dispatch_span.get_tag('error.stack').startswith('Traceback')) + self.assertEqual(dispatch_span.get_tag('error.type'), 'werkzeug.exceptions.NotFound') + + # Handler span + handler_span = spans[4] + self.assertEqual(handler_span.service, 'flask') + self.assertEqual(handler_span.name, 'tests.contrib.flask.test_request.not_found') + self.assertEqual(handler_span.resource, '/not-found') + self.assertEqual(handler_span.error, 1) + self.assertTrue(handler_span.get_tag('error.msg').startswith('404 Not Found')) + self.assertTrue(handler_span.get_tag('error.stack').startswith('Traceback')) + self.assertEqual(handler_span.get_tag('error.type'), 'werkzeug.exceptions.NotFound') + + def test_request_500(self): + """ + When making a request + When the requested endpoint raises an exception + We create the expected spans + """ + @self.app.route('/500') + def fivehundred(): + raise Exception('500 error') + + res = self.client.get('/500') + self.assertEqual(res.status_code, 500) + + spans = self.get_spans() + self.assertEqual(len(spans), 9) + + # Assert the order of the spans created + self.assertListEqual( + [ + 'flask.request', + 'flask.try_trigger_before_first_request_functions', + 'flask.preprocess_request', + 'flask.dispatch_request', + 'tests.contrib.flask.test_request.fivehundred', + 'flask.handle_user_exception', + 'flask.handle_exception', + 'flask.do_teardown_request', + 'flask.do_teardown_appcontext', + ], + [s.name for s in spans], + ) + + # Assert span services + for span in spans: + self.assertEqual(span.service, 'flask') + + # Root request span + req_span = spans[0] + self.assertEqual(req_span.service, 'flask') + self.assertEqual(req_span.name, 'flask.request') + self.assertEqual(req_span.resource, 'GET /500') + self.assertEqual(req_span.span_type, 'web') + self.assertEqual(req_span.error, 1) + self.assertIsNone(req_span.parent_id) + + # Request tags + self.assertEqual(req_span.get_tag('http.method'), 'GET') + self.assertEqual(req_span.get_tag(http.URL), 'http://localhost/500') + assert_span_http_status_code(req_span, 500) + self.assertEqual(req_span.get_tag('flask.endpoint'), 'fivehundred') + self.assertEqual(req_span.get_tag('flask.url_rule'), '/500') + + # Dispatch span + dispatch_span = spans[3] + self.assertEqual(dispatch_span.service, 'flask') + self.assertEqual(dispatch_span.name, 'flask.dispatch_request') + self.assertEqual(dispatch_span.resource, 'flask.dispatch_request') + self.assertEqual(dispatch_span.error, 1) + self.assertTrue(dispatch_span.get_tag('error.msg').startswith('500 error')) + self.assertTrue(dispatch_span.get_tag('error.stack').startswith('Traceback')) + self.assertEqual(dispatch_span.get_tag('error.type'), base_exception_name) + + # Handler span + handler_span = spans[4] + self.assertEqual(handler_span.service, 'flask') + self.assertEqual(handler_span.name, 'tests.contrib.flask.test_request.fivehundred') + self.assertEqual(handler_span.resource, '/500') + self.assertEqual(handler_span.error, 1) + self.assertTrue(handler_span.get_tag('error.msg').startswith('500 error')) + self.assertTrue(handler_span.get_tag('error.stack').startswith('Traceback')) + self.assertEqual(handler_span.get_tag('error.type'), base_exception_name) + + # User exception span + user_ex_span = spans[5] + self.assertEqual(user_ex_span.service, 'flask') + self.assertEqual(user_ex_span.name, 'flask.handle_user_exception') + self.assertEqual(user_ex_span.resource, 'flask.handle_user_exception') + self.assertEqual(user_ex_span.error, 1) + self.assertTrue(user_ex_span.get_tag('error.msg').startswith('500 error')) + self.assertTrue(user_ex_span.get_tag('error.stack').startswith('Traceback')) + self.assertEqual(user_ex_span.get_tag('error.type'), base_exception_name) + + def test_request_501(self): + """ + When making a request + When the requested endpoint calls `abort(501)` + We create the expected spans + """ + @self.app.route('/501') + def fivehundredone(): + abort(501) + + res = self.client.get('/501') + self.assertEqual(res.status_code, 501) + + spans = self.get_spans() + self.assertEqual(len(spans), 10) + + # Assert the order of the spans created + self.assertListEqual( + [ + 'flask.request', + 'flask.try_trigger_before_first_request_functions', + 'flask.preprocess_request', + 'flask.dispatch_request', + 'tests.contrib.flask.test_request.fivehundredone', + 'flask.handle_user_exception', + 'flask.handle_http_exception', + 'flask.process_response', + 'flask.do_teardown_request', + 'flask.do_teardown_appcontext', + ], + [s.name for s in spans], + ) + + # Assert span services + for span in spans: + self.assertEqual(span.service, 'flask') + + # Root request span + req_span = spans[0] + self.assertEqual(req_span.service, 'flask') + self.assertEqual(req_span.name, 'flask.request') + self.assertEqual(req_span.resource, 'GET /501') + self.assertEqual(req_span.span_type, 'web') + self.assertEqual(req_span.error, 1) + self.assertIsNone(req_span.parent_id) + + # Request tags + self.assertEqual(req_span.get_tag('http.method'), 'GET') + self.assertEqual(req_span.get_tag(http.URL), 'http://localhost/501') + assert_span_http_status_code(req_span, 501) + self.assertEqual(req_span.get_tag('flask.endpoint'), 'fivehundredone') + self.assertEqual(req_span.get_tag('flask.url_rule'), '/501') + + # Dispatch span + dispatch_span = spans[3] + self.assertEqual(dispatch_span.service, 'flask') + self.assertEqual(dispatch_span.name, 'flask.dispatch_request') + self.assertEqual(dispatch_span.resource, 'flask.dispatch_request') + self.assertEqual(dispatch_span.error, 1) + self.assertTrue(dispatch_span.get_tag('error.msg').startswith('501 Not Implemented')) + self.assertTrue(dispatch_span.get_tag('error.stack').startswith('Traceback')) + self.assertEqual(dispatch_span.get_tag('error.type'), 'werkzeug.exceptions.NotImplemented') + + # Handler span + handler_span = spans[4] + self.assertEqual(handler_span.service, 'flask') + self.assertEqual(handler_span.name, 'tests.contrib.flask.test_request.fivehundredone') + self.assertEqual(handler_span.resource, '/501') + self.assertEqual(handler_span.error, 1) + self.assertTrue(handler_span.get_tag('error.msg').startswith('501 Not Implemented')) + self.assertTrue(handler_span.get_tag('error.stack').startswith('Traceback')) + self.assertEqual(handler_span.get_tag('error.type'), 'werkzeug.exceptions.NotImplemented') + + # User exception span + user_ex_span = spans[5] + self.assertEqual(user_ex_span.service, 'flask') + self.assertEqual(user_ex_span.name, 'flask.handle_user_exception') + self.assertEqual(user_ex_span.resource, 'flask.handle_user_exception') + self.assertEqual(user_ex_span.error, 0) + + def test_request_error_handler(self): + """ + When making a request + When the requested endpoint raises an exception + We create the expected spans + """ + @self.app.errorhandler(500) + def error_handler(e): + return 'Whoops', 500 + + @self.app.route('/500') + def fivehundred(): + raise Exception('500 error') + + res = self.client.get('/500') + self.assertEqual(res.status_code, 500) + self.assertEqual(res.data, b'Whoops') + + spans = self.get_spans() + + if flask_version >= (0, 12, 0): + self.assertEqual(len(spans), 11) + + # Assert the order of the spans created + self.assertListEqual( + [ + 'flask.request', + 'flask.try_trigger_before_first_request_functions', + 'flask.preprocess_request', + 'flask.dispatch_request', + 'tests.contrib.flask.test_request.fivehundred', + 'flask.handle_user_exception', + 'flask.handle_exception', + 'tests.contrib.flask.test_request.error_handler', + 'flask.process_response', + 'flask.do_teardown_request', + 'flask.do_teardown_appcontext', + ], + [s.name for s in spans], + ) + else: + self.assertEqual(len(spans), 10) + + # Assert the order of the spans created + self.assertListEqual( + [ + 'flask.request', + 'flask.try_trigger_before_first_request_functions', + 'flask.preprocess_request', + 'flask.dispatch_request', + 'tests.contrib.flask.test_request.fivehundred', + 'flask.handle_user_exception', + 'flask.handle_exception', + 'tests.contrib.flask.test_request.error_handler', + 'flask.do_teardown_request', + 'flask.do_teardown_appcontext', + ], + [s.name for s in spans], + ) + + # Assert span services + for span in spans: + self.assertEqual(span.service, 'flask') + + # Root request span + req_span = spans[0] + self.assertEqual(req_span.service, 'flask') + self.assertEqual(req_span.name, 'flask.request') + self.assertEqual(req_span.resource, 'GET /500') + self.assertEqual(req_span.span_type, 'web') + self.assertEqual(req_span.error, 1) + self.assertIsNone(req_span.parent_id) + + # Request tags + self.assertEqual(req_span.get_tag('http.method'), 'GET') + self.assertEqual(req_span.get_tag(http.URL), 'http://localhost/500') + assert_span_http_status_code(req_span, 500) + self.assertEqual(req_span.get_tag('flask.endpoint'), 'fivehundred') + self.assertEqual(req_span.get_tag('flask.url_rule'), '/500') + + # Dispatch span + dispatch_span = spans[3] + self.assertEqual(dispatch_span.service, 'flask') + self.assertEqual(dispatch_span.name, 'flask.dispatch_request') + self.assertEqual(dispatch_span.resource, 'flask.dispatch_request') + self.assertEqual(dispatch_span.error, 1) + self.assertTrue(dispatch_span.get_tag('error.msg').startswith('500 error')) + self.assertTrue(dispatch_span.get_tag('error.stack').startswith('Traceback')) + self.assertEqual(dispatch_span.get_tag('error.type'), base_exception_name) + + # Handler span + handler_span = spans[4] + self.assertEqual(handler_span.service, 'flask') + self.assertEqual(handler_span.name, 'tests.contrib.flask.test_request.fivehundred') + self.assertEqual(handler_span.resource, '/500') + self.assertEqual(handler_span.error, 1) + self.assertTrue(handler_span.get_tag('error.msg').startswith('500 error')) + self.assertTrue(handler_span.get_tag('error.stack').startswith('Traceback')) + self.assertEqual(handler_span.get_tag('error.type'), base_exception_name) + + # User exception span + user_ex_span = spans[5] + self.assertEqual(user_ex_span.service, 'flask') + self.assertEqual(user_ex_span.name, 'flask.handle_user_exception') + self.assertEqual(user_ex_span.resource, 'flask.handle_user_exception') + self.assertEqual(user_ex_span.error, 1) + self.assertTrue(user_ex_span.get_tag('error.msg').startswith('500 error')) + self.assertTrue(user_ex_span.get_tag('error.stack').startswith('Traceback')) + self.assertEqual(user_ex_span.get_tag('error.type'), base_exception_name) diff --git a/tests/contrib/flask/test_signals.py b/tests/contrib/flask/test_signals.py new file mode 100644 index 0000000000..fc6e7b1206 --- /dev/null +++ b/tests/contrib/flask/test_signals.py @@ -0,0 +1,176 @@ +import mock + +import flask + +from ddtrace import Pin +from ddtrace.contrib.flask import unpatch +from ddtrace.contrib.flask.patch import flask_version + +from . import BaseFlaskTestCase + + +class FlaskSignalsTestCase(BaseFlaskTestCase): + def get_signal(self, signal_name): + # v0.9 missed importing `appcontext_tearing_down` in `flask/__init__.py` + # https://github.com/pallets/flask/blob/0.9/flask/__init__.py#L35-L37 + # https://github.com/pallets/flask/blob/0.9/flask/signals.py#L52 + # DEV: Version 0.9 doesn't have a patch version + if flask_version <= (0, 9) and signal_name == 'appcontext_tearing_down': + return getattr(flask.signals, signal_name) + return getattr(flask, signal_name) + + def signal_function(self, name): + def signal(*args, **kwargs): + pass + + func = mock.Mock(signal, name=name) + func.__module__ = 'tests.contrib.flask' + func.__name__ = name + return func + + def call_signal(self, signal_name, *args, **kwargs): + """Context manager helper used for generating a mock signal function and registering with flask""" + func = self.signal_function(signal_name) + + signal = self.get_signal(signal_name) + signal.connect(func, self.app) + + try: + signal.send(*args, **kwargs) + return func + finally: + # DEV: There is a bug in `blinker.Signal.disconnect` :( + signal.receivers.clear() + + def signals(self): + """Helper to get the signals for the current Flask version being tested""" + signals = [ + 'request_started', + 'request_finished', + 'request_tearing_down', + + 'template_rendered', + + 'got_request_exception', + 'appcontext_tearing_down', + ] + # This signal was added in 0.11.0 + if flask_version >= (0, 11): + signals.append('before_render_template') + + # These were added in 0.10 + if flask_version >= (0, 10): + signals.append('appcontext_pushed') + signals.append('appcontext_popped') + signals.append('message_flashed') + + return signals + + def test_patched(self): + """ + When the signals are patched + Their ``receivers_for`` method is wrapped as a ``wrapt.ObjectProxy`` + """ + # DEV: We call `patch()` in `setUp` + for signal_name in self.signals(): + signal = self.get_signal(signal_name) + receivers_for = getattr(signal, 'receivers_for') + self.assert_is_wrapped(receivers_for) + + def test_unpatch(self): + """ + When the signals are unpatched + Their ``receivers_for`` method is not a ``wrapt.ObjectProxy`` + """ + unpatch() + + for signal_name in self.signals(): + signal = self.get_signal(signal_name) + receivers_for = getattr(signal, 'receivers_for') + self.assert_is_not_wrapped(receivers_for) + + def test_signals(self): + """ + When a signal is connected + We create a span whenever that signal is sent + """ + for signal_name in self.signals(): + func = self.call_signal(signal_name, self.app) + + # Ensure our handler was called + func.assert_called_once_with(self.app) + + # Assert number of spans created + spans = self.get_spans() + self.assertEqual(len(spans), 1) + + # Assert the span that was created + span = spans[0] + self.assertEqual(span.service, 'flask') + self.assertEqual(span.name, 'tests.contrib.flask.{}'.format(signal_name)) + self.assertEqual(span.resource, 'tests.contrib.flask.{}'.format(signal_name)) + self.assertEqual(set(span.meta.keys()), set(['flask.signal'])) + self.assertEqual(span.meta['flask.signal'], signal_name) + + def test_signals_multiple(self): + """ + When a signal is connected + When multiple functions are registered for that signal + We create a span whenever that signal is sent + """ + # Our signal handlers + request_started_a = self.signal_function('request_started_a') + request_started_b = self.signal_function('request_started_b') + + flask.request_started.connect(request_started_a, self.app) + flask.request_started.connect(request_started_b, self.app) + + try: + flask.request_started.send(self.app) + finally: + # DEV: There is a bug in `blinker.Signal.disconnect` :( + flask.request_started.receivers.clear() + + # Ensure our handlers were called only once + request_started_a.assert_called_once_with(self.app) + request_started_b.assert_called_once_with(self.app) + + # Assert number of spans created + spans = self.get_spans() + self.assertEqual(len(spans), 2) + + # Assert the span that was created + span_a = spans[0] + self.assertEqual(span_a.service, 'flask') + self.assertEqual(span_a.name, 'tests.contrib.flask.request_started_a') + self.assertEqual(span_a.resource, 'tests.contrib.flask.request_started_a') + self.assertEqual(set(span_a.meta.keys()), set(['flask.signal'])) + self.assertEqual(span_a.meta['flask.signal'], 'request_started') + + # Assert the span that was created + span_b = spans[1] + self.assertEqual(span_b.service, 'flask') + self.assertEqual(span_b.name, 'tests.contrib.flask.request_started_b') + self.assertEqual(span_b.resource, 'tests.contrib.flask.request_started_b') + self.assertEqual(set(span_b.meta.keys()), set(['flask.signal'])) + self.assertEqual(span_b.meta['flask.signal'], 'request_started') + + def test_signals_pin_disabled(self): + """ + When a signal is connected + When the app pin is disabled + We do not create any spans when the signal is sent + """ + # Disable the pin on the app + pin = Pin.get_from(self.app) + pin.tracer.enabled = False + + for signal_name in self.signals(): + func = self.call_signal(signal_name, self.app) + + # Ensure our function was called by the signal + func.assert_called_once_with(self.app) + + # Assert number of spans created + spans = self.get_spans() + self.assertEqual(len(spans), 0) diff --git a/tests/contrib/flask/test_static.py b/tests/contrib/flask/test_static.py new file mode 100644 index 0000000000..9ad8be9053 --- /dev/null +++ b/tests/contrib/flask/test_static.py @@ -0,0 +1,94 @@ +from ddtrace.ext import http + +from . import BaseFlaskTestCase +from ...utils import assert_span_http_status_code + + +class FlaskStaticFileTestCase(BaseFlaskTestCase): + def test_serve_static_file(self): + """ + When fetching a static file + We create the expected spans + """ + # DEV: By default a static handler for `./static/` is configured for us + res = self.client.get('/static/test.txt') + self.assertEqual(res.status_code, 200) + self.assertEqual(res.data, b'Hello Flask\n') + + spans = self.get_spans() + self.assertEqual(len(spans), 9) + + req_span = self.find_span_by_name(spans, 'flask.request') + handler_span = self.find_span_by_name(spans, 'static') + send_file_span = self.find_span_by_name(spans, 'flask.send_static_file') + + # flask.request span + self.assertEqual(req_span.error, 0) + self.assertEqual(req_span.service, 'flask') + self.assertEqual(req_span.name, 'flask.request') + self.assertEqual(req_span.resource, 'GET /static/') + self.assertEqual(req_span.get_tag('flask.endpoint'), 'static') + self.assertEqual(req_span.get_tag('flask.url_rule'), '/static/') + self.assertEqual(req_span.get_tag('flask.view_args.filename'), 'test.txt') + assert_span_http_status_code(req_span, 200) + self.assertEqual(req_span.get_tag(http.URL), 'http://localhost/static/test.txt') + self.assertEqual(req_span.get_tag('http.method'), 'GET') + + # static span + self.assertEqual(handler_span.error, 0) + self.assertEqual(handler_span.service, 'flask') + self.assertEqual(handler_span.name, 'static') + self.assertEqual(handler_span.resource, '/static/') + + # flask.send_static_file span + self.assertEqual(send_file_span.error, 0) + self.assertEqual(send_file_span.service, 'flask') + self.assertEqual(send_file_span.name, 'flask.send_static_file') + self.assertEqual(send_file_span.resource, 'flask.send_static_file') + + def test_serve_static_file_404(self): + """ + When fetching a static file + When the file does not exist + We create the expected spans + """ + # DEV: By default a static handler for `./static/` is configured for us + res = self.client.get('/static/unknown-file') + self.assertEqual(res.status_code, 404) + + spans = self.get_spans() + self.assertEqual(len(spans), 11) + + req_span = self.find_span_by_name(spans, 'flask.request') + handler_span = self.find_span_by_name(spans, 'static') + send_file_span = self.find_span_by_name(spans, 'flask.send_static_file') + + # flask.request span + self.assertEqual(req_span.error, 0) + self.assertEqual(req_span.service, 'flask') + self.assertEqual(req_span.name, 'flask.request') + self.assertEqual(req_span.resource, 'GET /static/') + self.assertEqual(req_span.get_tag('flask.endpoint'), 'static') + self.assertEqual(req_span.get_tag('flask.url_rule'), '/static/') + self.assertEqual(req_span.get_tag('flask.view_args.filename'), 'unknown-file') + assert_span_http_status_code(req_span, 404) + self.assertEqual(req_span.get_tag(http.URL), 'http://localhost/static/unknown-file') + self.assertEqual(req_span.get_tag('http.method'), 'GET') + + # static span + self.assertEqual(handler_span.error, 1) + self.assertEqual(handler_span.service, 'flask') + self.assertEqual(handler_span.name, 'static') + self.assertEqual(handler_span.resource, '/static/') + self.assertTrue(handler_span.get_tag('error.msg').startswith('404 Not Found')) + self.assertTrue(handler_span.get_tag('error.stack').startswith('Traceback')) + self.assertEqual(handler_span.get_tag('error.type'), 'werkzeug.exceptions.NotFound') + + # flask.send_static_file span + self.assertEqual(send_file_span.error, 1) + self.assertEqual(send_file_span.service, 'flask') + self.assertEqual(send_file_span.name, 'flask.send_static_file') + self.assertEqual(send_file_span.resource, 'flask.send_static_file') + self.assertTrue(send_file_span.get_tag('error.msg').startswith('404 Not Found')) + self.assertTrue(send_file_span.get_tag('error.stack').startswith('Traceback')) + self.assertEqual(send_file_span.get_tag('error.type'), 'werkzeug.exceptions.NotFound') diff --git a/tests/contrib/flask/test_template.py b/tests/contrib/flask/test_template.py new file mode 100644 index 0000000000..e159315694 --- /dev/null +++ b/tests/contrib/flask/test_template.py @@ -0,0 +1,114 @@ +import flask + +from ddtrace import Pin +from ddtrace.contrib.flask import unpatch + +from . import BaseFlaskTestCase + + +class FlaskTemplateTestCase(BaseFlaskTestCase): + def test_patch(self): + """ + When we patch Flask + Then ``flask.render_template`` is patched + Then ``flask.render_template_string`` is patched + Then ``flask.templating._render`` is patched + """ + # DEV: We call `patch` in `setUp` + self.assert_is_wrapped(flask.render_template) + self.assert_is_wrapped(flask.render_template_string) + self.assert_is_wrapped(flask.templating._render) + + def test_unpatch(self): + """ + When we unpatch Flask + Then ``flask.render_template`` is unpatched + Then ``flask.render_template_string`` is unpatched + Then ``flask.templating._render`` is unpatched + """ + unpatch() + self.assert_is_not_wrapped(flask.render_template) + self.assert_is_not_wrapped(flask.render_template_string) + self.assert_is_not_wrapped(flask.templating._render) + + def test_render_template(self): + """ + When we call a patched ``flask.render_template`` + We create the expected spans + """ + with self.app.app_context(): + with self.app.test_request_context('/'): + response = flask.render_template('test.html', world='world') + self.assertEqual(response, 'hello world') + + # 1 for calling `flask.render_template` + # 1 for tearing down the request + # 1 for tearing down the app context we created + spans = self.get_spans() + self.assertEqual(len(spans), 3) + + self.assertIsNone(spans[0].service) + self.assertEqual(spans[0].name, 'flask.render_template') + self.assertEqual(spans[0].resource, 'test.html') + self.assertEqual(set(spans[0].meta.keys()), set(['flask.template_name'])) + self.assertEqual(spans[0].meta['flask.template_name'], 'test.html') + + self.assertEqual(spans[1].name, 'flask.do_teardown_request') + self.assertEqual(spans[2].name, 'flask.do_teardown_appcontext') + + def test_render_template_pin_disabled(self): + """ + When we call a patched ``flask.render_template`` + When the app's ``Pin`` is disabled + We do not create any spans + """ + pin = Pin.get_from(self.app) + pin.tracer.enabled = False + + with self.app.app_context(): + with self.app.test_request_context('/'): + response = flask.render_template('test.html', world='world') + self.assertEqual(response, 'hello world') + + self.assertEqual(len(self.get_spans()), 0) + + def test_render_template_string(self): + """ + When we call a patched ``flask.render_template_string`` + We create the expected spans + """ + with self.app.app_context(): + with self.app.test_request_context('/'): + response = flask.render_template_string('hello {{world}}', world='world') + self.assertEqual(response, 'hello world') + + # 1 for calling `flask.render_template` + # 1 for tearing down the request + # 1 for tearing down the app context we created + spans = self.get_spans() + self.assertEqual(len(spans), 3) + + self.assertIsNone(spans[0].service) + self.assertEqual(spans[0].name, 'flask.render_template_string') + self.assertEqual(spans[0].resource, '') + self.assertEqual(set(spans[0].meta.keys()), set(['flask.template_name'])) + self.assertEqual(spans[0].meta['flask.template_name'], '') + + self.assertEqual(spans[1].name, 'flask.do_teardown_request') + self.assertEqual(spans[2].name, 'flask.do_teardown_appcontext') + + def test_render_template_string_pin_disabled(self): + """ + When we call a patched ``flask.render_template_string`` + When the app's ``Pin`` is disabled + We do not create any spans + """ + pin = Pin.get_from(self.app) + pin.tracer.enabled = False + + with self.app.app_context(): + with self.app.test_request_context('/'): + response = flask.render_template_string('hello {{world}}', world='world') + self.assertEqual(response, 'hello world') + + self.assertEqual(len(self.get_spans()), 0) diff --git a/tests/contrib/flask/test_templates/err.html b/tests/contrib/flask/test_templates/err.html new file mode 100644 index 0000000000..fc310aeb9e --- /dev/null +++ b/tests/contrib/flask/test_templates/err.html @@ -0,0 +1,2 @@ + +oh {{no diff --git a/tests/contrib/flask/test_templates/render_err.html b/tests/contrib/flask/test_templates/render_err.html new file mode 100644 index 0000000000..b11f8041e1 --- /dev/null +++ b/tests/contrib/flask/test_templates/render_err.html @@ -0,0 +1 @@ +hello {{object.method()}} diff --git a/tests/contrib/flask/test_templates/test.html b/tests/contrib/flask/test_templates/test.html new file mode 100644 index 0000000000..d3f694cd1e --- /dev/null +++ b/tests/contrib/flask/test_templates/test.html @@ -0,0 +1 @@ +hello {{world}} diff --git a/tests/contrib/flask/test_views.py b/tests/contrib/flask/test_views.py new file mode 100644 index 0000000000..c45fa4446c --- /dev/null +++ b/tests/contrib/flask/test_views.py @@ -0,0 +1,172 @@ +from flask.views import MethodView, View + +from ddtrace.compat import PY2 +from ddtrace.ext import http + +from . import BaseFlaskTestCase +from ...utils import assert_span_http_status_code + + +base_exception_name = 'builtins.Exception' +if PY2: + base_exception_name = 'exceptions.Exception' + + +class FlaskViewTestCase(BaseFlaskTestCase): + def test_view_handler(self): + """ + When using a flask.views.View + We create spans as expected + """ + class TestView(View): + methods = ['GET'] + + def dispatch_request(self, name): + return 'Hello {}'.format(name) + + self.app.add_url_rule('/hello/', view_func=TestView.as_view('hello')) + + res = self.client.get('/hello/flask') + self.assertEqual(res.status_code, 200) + self.assertEqual(res.data, b'Hello flask') + + spans = self.get_spans() + + req_span = self.find_span_by_name(spans, 'flask.request') + handler_span = self.find_span_by_name(spans, 'tests.contrib.flask.test_views.hello') + + # flask.request + self.assertEqual(req_span.error, 0) + self.assertEqual(req_span.get_tag('flask.endpoint'), 'hello') + self.assertEqual(req_span.get_tag('flask.url_rule'), '/hello/') + self.assertEqual(req_span.get_tag('flask.view_args.name'), 'flask') + self.assertEqual(req_span.get_tag('http.method'), 'GET') + assert_span_http_status_code(req_span, 200) + self.assertEqual(req_span.get_tag(http.URL), 'http://localhost/hello/flask') + + # tests.contrib.flask.test_views.hello + # DEV: We do not add any additional metadata to view spans + self.assertEqual(handler_span.error, 0) + self.assertEqual(handler_span.meta, dict()) + + def test_view_handler_error(self): + """ + When using a flask.views.View + When it raises an exception + We create spans as expected + """ + class TestView(View): + methods = ['GET'] + + def dispatch_request(self, name): + raise Exception('an error') + + self.app.add_url_rule('/hello/', view_func=TestView.as_view('hello')) + + res = self.client.get('/hello/flask') + self.assertEqual(res.status_code, 500) + + spans = self.get_spans() + + req_span = self.find_span_by_name(spans, 'flask.request') + dispatch_span = self.find_span_by_name(spans, 'flask.dispatch_request') + handler_span = self.find_span_by_name(spans, 'tests.contrib.flask.test_views.hello') + + # flask.request + self.assertEqual(req_span.error, 1) + self.assertEqual(req_span.get_tag('flask.endpoint'), 'hello') + self.assertEqual(req_span.get_tag('flask.url_rule'), '/hello/') + self.assertEqual(req_span.get_tag('flask.view_args.name'), 'flask') + self.assertEqual(req_span.get_tag('http.method'), 'GET') + assert_span_http_status_code(req_span, 500) + self.assertEqual(req_span.get_tag(http.URL), 'http://localhost/hello/flask') + + # flask.dispatch_request + self.assertEqual(dispatch_span.error, 1) + self.assertEqual(dispatch_span.get_tag('error.msg'), 'an error') + self.assertTrue(dispatch_span.get_tag('error.stack').startswith('Traceback (most recent call last):')) + self.assertEqual(dispatch_span.get_tag('error.type'), base_exception_name) + + # tests.contrib.flask.test_views.hello + # DEV: We do not add any additional metadata to view spans + self.assertEqual(handler_span.error, 1) + self.assertEqual(handler_span.get_tag('error.msg'), 'an error') + self.assertTrue(handler_span.get_tag('error.stack').startswith('Traceback (most recent call last):')) + self.assertEqual(handler_span.get_tag('error.type'), base_exception_name) + + def test_method_view_handler(self): + """ + When using a flask.views.MethodView + We create spans as expected + """ + class TestView(MethodView): + def get(self, name): + return 'Hello {}'.format(name) + + self.app.add_url_rule('/hello/', view_func=TestView.as_view('hello')) + + res = self.client.get('/hello/flask') + self.assertEqual(res.status_code, 200) + self.assertEqual(res.data, b'Hello flask') + + spans = self.get_spans() + + req_span = self.find_span_by_name(spans, 'flask.request') + handler_span = self.find_span_by_name(spans, 'tests.contrib.flask.test_views.hello') + + # flask.request + self.assertEqual(req_span.error, 0) + self.assertEqual(req_span.get_tag('flask.endpoint'), 'hello') + self.assertEqual(req_span.get_tag('flask.url_rule'), '/hello/') + self.assertEqual(req_span.get_tag('flask.view_args.name'), 'flask') + self.assertEqual(req_span.get_tag('http.method'), 'GET') + assert_span_http_status_code(req_span, 200) + self.assertEqual(req_span.get_tag(http.URL), 'http://localhost/hello/flask') + + # tests.contrib.flask.test_views.hello + # DEV: We do not add any additional metadata to view spans + self.assertEqual(handler_span.error, 0) + self.assertEqual(handler_span.meta, dict()) + + def test_method_view_handler_error(self): + """ + When using a flask.views.View + When it raises an exception + We create spans as expected + """ + class TestView(MethodView): + def get(self, name): + raise Exception('an error') + + self.app.add_url_rule('/hello/', view_func=TestView.as_view('hello')) + + res = self.client.get('/hello/flask') + self.assertEqual(res.status_code, 500) + + spans = self.get_spans() + + req_span = self.find_span_by_name(spans, 'flask.request') + dispatch_span = self.find_span_by_name(spans, 'flask.dispatch_request') + handler_span = self.find_span_by_name(spans, 'tests.contrib.flask.test_views.hello') + + # flask.request + self.assertEqual(req_span.error, 1) + self.assertEqual(req_span.get_tag('flask.endpoint'), 'hello') + self.assertEqual(req_span.get_tag('flask.url_rule'), '/hello/') + self.assertEqual(req_span.get_tag('flask.view_args.name'), 'flask') + self.assertEqual(req_span.get_tag('http.method'), 'GET') + assert_span_http_status_code(req_span, 500) + self.assertEqual(req_span.get_tag(http.URL), 'http://localhost/hello/flask') + + # flask.dispatch_request + self.assertEqual(dispatch_span.error, 1) + self.assertEqual(dispatch_span.get_tag('error.msg'), 'an error') + self.assertTrue(dispatch_span.get_tag('error.stack').startswith('Traceback (most recent call last):')) + self.assertEqual(dispatch_span.get_tag('error.type'), base_exception_name) + + # tests.contrib.flask.test_views.hello + # DEV: We do not add any additional metadata to view spans + self.assertEqual(handler_span.error, 1) + self.assertEqual(handler_span.get_tag('error.msg'), 'an error') + self.assertTrue(handler_span.get_tag('error.stack').startswith('Traceback (most recent call last):')) + self.assertEqual(handler_span.get_tag('error.type'), base_exception_name) diff --git a/tests/contrib/flask/web.py b/tests/contrib/flask/web.py new file mode 100644 index 0000000000..3fb746fa13 --- /dev/null +++ b/tests/contrib/flask/web.py @@ -0,0 +1,84 @@ +# -*- coding: utf-8 -*- +import os + +from flask import Flask, render_template + + +class TestError(Exception): + pass + + +class HandleMe(Exception): + pass + + +def create_app(): + """Initializes a new Flask application. This method is required to + be sure each time a test is executed, the Flask app is always new + and without any tracing side effect from the previous execution. + """ + cur_dir = os.path.dirname(os.path.realpath(__file__)) + tmpl_path = os.path.join(cur_dir, 'test_templates') + app = Flask(__name__, template_folder=tmpl_path) + + @app.route('/') + def index(): + return 'hello' + + @app.route('/error') + def error(): + raise TestError() + + @app.route('/handleme') + def handle_me(): + raise HandleMe() + + @app.route('/fatal') + def fatal(): + 1 / 0 + + @app.route('/tmpl') + def tmpl(): + return render_template('test.html', world='earth') + + @app.route('/tmpl/err') + def tmpl_err(): + return render_template('err.html') + + @app.route('/tmpl/render_err') + def tmpl_render_err(): + return render_template('render_err.html') + + @app.route('/child') + def child(): + with app._tracer.trace('child') as span: + span.set_tag('a', 'b') + return 'child' + + @app.route('/custom_span') + def custom_span(): + span = app._tracer.current_span() + assert span + span.resource = 'overridden' + return 'hiya' + + def unicode_view(): + return u'üŋïĉóđē' + + app.add_url_rule( + u'/üŋïĉóđē', + u'üŋïĉóđē', + unicode_view, + ) + + @app.errorhandler(TestError) + def handle_my_exception(e): + assert isinstance(e, TestError) + return 'error', 500 + + @app.errorhandler(HandleMe) + def err_to_202(e): + assert isinstance(e, HandleMe) + return 'handled', 202 + + return app diff --git a/tests/contrib/flask_autopatch/__init__.py b/tests/contrib/flask_autopatch/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/flask_autopatch/test_flask_autopatch.py b/tests/contrib/flask_autopatch/test_flask_autopatch.py new file mode 100644 index 0000000000..1ce50499b9 --- /dev/null +++ b/tests/contrib/flask_autopatch/test_flask_autopatch.py @@ -0,0 +1,101 @@ +# -*- coding: utf-8 -*- +import unittest + +import flask + +from ddtrace.vendor import wrapt +from ddtrace.ext import http +from ddtrace import Pin + +from ...test_tracer import get_dummy_tracer +from ...utils import assert_span_http_status_code + + +class FlaskAutopatchTestCase(unittest.TestCase): + def setUp(self): + self.tracer = get_dummy_tracer() + self.app = flask.Flask(__name__) + Pin.override(self.app, service='test-flask', tracer=self.tracer) + self.client = self.app.test_client() + + def test_patched(self): + """ + When using ddtrace-run + Then the `flask` module is patched + """ + # DEV: We have great test coverage in tests.contrib.flask, + # we only need basic tests here to assert `ddtrace-run` patched thingsa + + # Assert module is marked as patched + self.assertTrue(flask._datadog_patch) + + # Assert our instance of flask.app.Flask is patched + self.assertTrue(isinstance(self.app.add_url_rule, wrapt.ObjectProxy)) + self.assertTrue(isinstance(self.app.wsgi_app, wrapt.ObjectProxy)) + + # Assert the base module flask.app.Flask methods are patched + self.assertTrue(isinstance(flask.app.Flask.add_url_rule, wrapt.ObjectProxy)) + self.assertTrue(isinstance(flask.app.Flask.wsgi_app, wrapt.ObjectProxy)) + + def test_request(self): + """ + When using ddtrace-run + When making a request to flask app + We generate the expected spans + """ + @self.app.route('/') + def index(): + return 'Hello Flask', 200 + + res = self.client.get('/') + self.assertEqual(res.status_code, 200) + self.assertEqual(res.data, b'Hello Flask') + + spans = self.tracer.writer.pop() + self.assertEqual(len(spans), 8) + + self.assertListEqual( + [ + 'flask.request', + 'flask.try_trigger_before_first_request_functions', + 'flask.preprocess_request', + 'flask.dispatch_request', + 'tests.contrib.flask_autopatch.test_flask_autopatch.index', + 'flask.process_response', + 'flask.do_teardown_request', + 'flask.do_teardown_appcontext', + ], + [s.name for s in spans], + ) + + # Assert span services + for span in spans: + self.assertEqual(span.service, 'test-flask') + + # Root request span + req_span = spans[0] + self.assertEqual(req_span.service, 'test-flask') + self.assertEqual(req_span.name, 'flask.request') + self.assertEqual(req_span.resource, 'GET /') + self.assertEqual(req_span.span_type, 'web') + self.assertEqual(req_span.error, 0) + self.assertIsNone(req_span.parent_id) + + # Request tags + self.assertEqual( + set(['flask.version', 'http.url', 'http.method', 'http.status_code', + 'flask.endpoint', 'flask.url_rule']), + set(req_span.meta.keys()), + ) + self.assertEqual(req_span.get_tag('flask.endpoint'), 'index') + self.assertEqual(req_span.get_tag('flask.url_rule'), '/') + self.assertEqual(req_span.get_tag('http.method'), 'GET') + self.assertEqual(req_span.get_tag(http.URL), 'http://localhost/') + assert_span_http_status_code(req_span, 200) + + # Handler span + handler_span = spans[4] + self.assertEqual(handler_span.service, 'test-flask') + self.assertEqual(handler_span.name, 'tests.contrib.flask_autopatch.test_flask_autopatch.index') + self.assertEqual(handler_span.resource, '/') + self.assertEqual(req_span.error, 0) diff --git a/tests/contrib/flask_autopatch/test_templates/err.html b/tests/contrib/flask_autopatch/test_templates/err.html new file mode 100644 index 0000000000..fc310aeb9e --- /dev/null +++ b/tests/contrib/flask_autopatch/test_templates/err.html @@ -0,0 +1,2 @@ + +oh {{no diff --git a/tests/contrib/flask_autopatch/test_templates/test.html b/tests/contrib/flask_autopatch/test_templates/test.html new file mode 100644 index 0000000000..d3f694cd1e --- /dev/null +++ b/tests/contrib/flask_autopatch/test_templates/test.html @@ -0,0 +1 @@ +hello {{world}} diff --git a/tests/contrib/flask_cache/__init__.py b/tests/contrib/flask_cache/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/flask_cache/test.py b/tests/contrib/flask_cache/test.py new file mode 100644 index 0000000000..1515cd93f8 --- /dev/null +++ b/tests/contrib/flask_cache/test.py @@ -0,0 +1,280 @@ +# -*- coding: utf-8 -*- + +# project +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.ext import net +from ddtrace.contrib.flask_cache import get_traced_cache +from ddtrace.contrib.flask_cache.tracers import CACHE_BACKEND + +# 3rd party +from flask import Flask + +# testing +from tests.opentracer.utils import init_tracer +from ..config import REDIS_CONFIG, MEMCACHED_CONFIG +from ...base import BaseTracerTestCase +from ...util import assert_dict_issuperset + + +class FlaskCacheTest(BaseTracerTestCase): + SERVICE = 'test-flask-cache' + TEST_REDIS_PORT = REDIS_CONFIG['port'] + TEST_MEMCACHED_PORT = MEMCACHED_CONFIG['port'] + + def setUp(self): + super(FlaskCacheTest, self).setUp() + + # create the TracedCache instance for a Flask app + Cache = get_traced_cache(self.tracer, service=self.SERVICE) + app = Flask(__name__) + self.cache = Cache(app, config={'CACHE_TYPE': 'simple'}) + + def test_simple_cache_get(self): + self.cache.get(u'á_complex_operation') + spans = self.get_spans() + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.service, self.SERVICE) + self.assertEqual(span.resource, 'get') + self.assertEqual(span.name, 'flask_cache.cmd') + self.assertEqual(span.span_type, 'cache') + self.assertEqual(span.error, 0) + + expected_meta = { + 'flask_cache.key': u'á_complex_operation', + 'flask_cache.backend': 'simple', + } + + assert_dict_issuperset(span.meta, expected_meta) + + def test_simple_cache_set(self): + self.cache.set(u'á_complex_operation', u'with_á_value\nin two lines') + spans = self.get_spans() + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.service, self.SERVICE) + self.assertEqual(span.resource, 'set') + self.assertEqual(span.name, 'flask_cache.cmd') + self.assertEqual(span.span_type, 'cache') + self.assertEqual(span.error, 0) + + expected_meta = { + 'flask_cache.key': u'á_complex_operation', + 'flask_cache.backend': 'simple', + } + + assert_dict_issuperset(span.meta, expected_meta) + + def test_simple_cache_add(self): + self.cache.add(u'á_complex_number', 50) + spans = self.get_spans() + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.service, self.SERVICE) + self.assertEqual(span.resource, 'add') + self.assertEqual(span.name, 'flask_cache.cmd') + self.assertEqual(span.span_type, 'cache') + self.assertEqual(span.error, 0) + + expected_meta = { + 'flask_cache.key': u'á_complex_number', + 'flask_cache.backend': 'simple', + } + + assert_dict_issuperset(span.meta, expected_meta) + + def test_simple_cache_delete(self): + self.cache.delete(u'á_complex_operation') + spans = self.get_spans() + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.service, self.SERVICE) + self.assertEqual(span.resource, 'delete') + self.assertEqual(span.name, 'flask_cache.cmd') + self.assertEqual(span.span_type, 'cache') + self.assertEqual(span.error, 0) + + expected_meta = { + 'flask_cache.key': u'á_complex_operation', + 'flask_cache.backend': 'simple', + } + + assert_dict_issuperset(span.meta, expected_meta) + + def test_simple_cache_delete_many(self): + self.cache.delete_many('complex_operation', 'another_complex_op') + spans = self.get_spans() + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.service, self.SERVICE) + self.assertEqual(span.resource, 'delete_many') + self.assertEqual(span.name, 'flask_cache.cmd') + self.assertEqual(span.span_type, 'cache') + self.assertEqual(span.error, 0) + + expected_meta = { + 'flask_cache.key': "['complex_operation', 'another_complex_op']", + 'flask_cache.backend': 'simple', + } + + assert_dict_issuperset(span.meta, expected_meta) + + def test_simple_cache_clear(self): + self.cache.clear() + spans = self.get_spans() + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.service, self.SERVICE) + self.assertEqual(span.resource, 'clear') + self.assertEqual(span.name, 'flask_cache.cmd') + self.assertEqual(span.span_type, 'cache') + self.assertEqual(span.error, 0) + + expected_meta = { + 'flask_cache.backend': 'simple', + } + + assert_dict_issuperset(span.meta, expected_meta) + + def test_simple_cache_get_many(self): + self.cache.get_many('first_complex_op', 'second_complex_op') + spans = self.get_spans() + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.service, self.SERVICE) + self.assertEqual(span.resource, 'get_many') + self.assertEqual(span.name, 'flask_cache.cmd') + self.assertEqual(span.span_type, 'cache') + self.assertEqual(span.error, 0) + + expected_meta = { + 'flask_cache.key': "['first_complex_op', 'second_complex_op']", + 'flask_cache.backend': 'simple', + } + + assert_dict_issuperset(span.meta, expected_meta) + + def test_simple_cache_set_many(self): + self.cache.set_many({ + 'first_complex_op': 10, + 'second_complex_op': 20, + }) + spans = self.get_spans() + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.service, self.SERVICE) + self.assertEqual(span.resource, 'set_many') + self.assertEqual(span.name, 'flask_cache.cmd') + self.assertEqual(span.span_type, 'cache') + self.assertEqual(span.error, 0) + + self.assertEqual(span.meta['flask_cache.backend'], 'simple') + self.assertTrue('first_complex_op' in span.meta['flask_cache.key']) + self.assertTrue('second_complex_op' in span.meta['flask_cache.key']) + + def test_default_span_tags(self): + # test tags and attributes + with self.cache._TracedCache__trace('flask_cache.cmd') as span: + self.assertEqual(span.service, self.SERVICE) + self.assertEqual(span.span_type, 'cache') + self.assertEqual(span.meta[CACHE_BACKEND], 'simple') + self.assertTrue(net.TARGET_HOST not in span.meta) + self.assertTrue(net.TARGET_PORT not in span.meta) + + def test_default_span_tags_for_redis(self): + # create the TracedCache instance for a Flask app + Cache = get_traced_cache(self.tracer, service=self.SERVICE) + app = Flask(__name__) + config = { + 'CACHE_TYPE': 'redis', + 'CACHE_REDIS_PORT': self.TEST_REDIS_PORT, + } + cache = Cache(app, config=config) + # test tags and attributes + with cache._TracedCache__trace('flask_cache.cmd') as span: + self.assertEqual(span.service, self.SERVICE) + self.assertEqual(span.span_type, 'cache') + self.assertEqual(span.meta[CACHE_BACKEND], 'redis') + self.assertEqual(span.meta[net.TARGET_HOST], 'localhost') + self.assertEqual(span.metrics[net.TARGET_PORT], self.TEST_REDIS_PORT) + + def test_default_span_tags_memcached(self): + # create the TracedCache instance for a Flask app + Cache = get_traced_cache(self.tracer, service=self.SERVICE) + app = Flask(__name__) + config = { + 'CACHE_TYPE': 'memcached', + 'CACHE_MEMCACHED_SERVERS': ['127.0.0.1:{}'.format(self.TEST_MEMCACHED_PORT)], + } + cache = Cache(app, config=config) + # test tags and attributes + with cache._TracedCache__trace('flask_cache.cmd') as span: + self.assertEqual(span.service, self.SERVICE) + self.assertEqual(span.span_type, 'cache') + self.assertEqual(span.meta[CACHE_BACKEND], 'memcached') + self.assertEqual(span.meta[net.TARGET_HOST], '127.0.0.1') + self.assertEqual(span.metrics[net.TARGET_PORT], self.TEST_MEMCACHED_PORT) + + def test_simple_cache_get_ot(self): + """OpenTracing version of test_simple_cache_get.""" + ot_tracer = init_tracer('my_svc', self.tracer) + + # create the TracedCache instance for a Flask app + Cache = get_traced_cache(self.tracer, service=self.SERVICE) + app = Flask(__name__) + cache = Cache(app, config={'CACHE_TYPE': 'simple'}) + + with ot_tracer.start_active_span('ot_span'): + cache.get(u'á_complex_operation') + + spans = self.get_spans() + self.assertEqual(len(spans), 2) + ot_span, dd_span = spans + + # confirm the parenting + self.assertIsNone(ot_span.parent_id) + self.assertEqual(dd_span.parent_id, ot_span.span_id) + + self.assertEqual(ot_span.resource, 'ot_span') + self.assertEqual(ot_span.service, 'my_svc') + + self.assertEqual(dd_span.service, self.SERVICE) + self.assertEqual(dd_span.resource, 'get') + self.assertEqual(dd_span.name, 'flask_cache.cmd') + self.assertEqual(dd_span.span_type, 'cache') + self.assertEqual(dd_span.error, 0) + + expected_meta = { + 'flask_cache.key': u'á_complex_operation', + 'flask_cache.backend': 'simple', + } + + assert_dict_issuperset(dd_span.meta, expected_meta) + + def test_analytics_default(self): + self.cache.get(u'á_complex_operation') + spans = self.get_spans() + self.assertEqual(len(spans), 1) + self.assertIsNone(spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + def test_analytics_with_rate(self): + with self.override_config( + 'flask_cache', + dict(analytics_enabled=True, analytics_sample_rate=0.5) + ): + self.cache.get(u'á_complex_operation') + + spans = self.get_spans() + self.assertEqual(len(spans), 1) + self.assertEqual(spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY), 0.5) + + def test_analytics_without_rate(self): + with self.override_config( + 'flask_cache', + dict(analytics_enabled=True) + ): + self.cache.get(u'á_complex_operation') + + spans = self.get_spans() + self.assertEqual(len(spans), 1) + self.assertEqual(spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY), 1.0) diff --git a/tests/contrib/flask_cache/test_utils.py b/tests/contrib/flask_cache/test_utils.py new file mode 100644 index 0000000000..db487d06c3 --- /dev/null +++ b/tests/contrib/flask_cache/test_utils.py @@ -0,0 +1,110 @@ +import unittest + +# project +from ddtrace.tracer import Tracer +from ddtrace.contrib.flask_cache import get_traced_cache +from ddtrace.contrib.flask_cache.utils import _extract_conn_tags, _resource_from_cache_prefix + +# 3rd party +from flask import Flask + +# testing +from ..config import REDIS_CONFIG, MEMCACHED_CONFIG + + +class FlaskCacheUtilsTest(unittest.TestCase): + SERVICE = 'test-flask-cache' + + def test_extract_redis_connection_metadata(self): + # create the TracedCache instance for a Flask app + tracer = Tracer() + Cache = get_traced_cache(tracer, service=self.SERVICE) + app = Flask(__name__) + config = { + 'CACHE_TYPE': 'redis', + 'CACHE_REDIS_PORT': REDIS_CONFIG['port'], + } + traced_cache = Cache(app, config=config) + # extract client data + meta = _extract_conn_tags(traced_cache.cache._client) + expected_meta = {'out.host': 'localhost', 'out.port': REDIS_CONFIG['port'], 'out.redis_db': 0} + assert meta == expected_meta + + def test_extract_memcached_connection_metadata(self): + # create the TracedCache instance for a Flask app + tracer = Tracer() + Cache = get_traced_cache(tracer, service=self.SERVICE) + app = Flask(__name__) + config = { + 'CACHE_TYPE': 'memcached', + 'CACHE_MEMCACHED_SERVERS': ['127.0.0.1:{}'.format(MEMCACHED_CONFIG['port'])], + } + traced_cache = Cache(app, config=config) + # extract client data + meta = _extract_conn_tags(traced_cache.cache._client) + expected_meta = {'out.host': '127.0.0.1', 'out.port': MEMCACHED_CONFIG['port']} + assert meta == expected_meta + + def test_extract_memcached_multiple_connection_metadata(self): + # create the TracedCache instance for a Flask app + tracer = Tracer() + Cache = get_traced_cache(tracer, service=self.SERVICE) + app = Flask(__name__) + config = { + 'CACHE_TYPE': 'memcached', + 'CACHE_MEMCACHED_SERVERS': [ + '127.0.0.1:{}'.format(MEMCACHED_CONFIG['port']), + 'localhost:{}'.format(MEMCACHED_CONFIG['port']), + ], + } + traced_cache = Cache(app, config=config) + # extract client data + meta = _extract_conn_tags(traced_cache.cache._client) + expected_meta = { + 'out.host': '127.0.0.1', + 'out.port': MEMCACHED_CONFIG['port'], + } + assert meta == expected_meta + + def test_resource_from_cache_with_prefix(self): + # create the TracedCache instance for a Flask app + tracer = Tracer() + Cache = get_traced_cache(tracer, service=self.SERVICE) + app = Flask(__name__) + config = { + 'CACHE_TYPE': 'redis', + 'CACHE_REDIS_PORT': REDIS_CONFIG['port'], + 'CACHE_KEY_PREFIX': 'users', + } + traced_cache = Cache(app, config=config) + # expect a resource with a prefix + expected_resource = 'get users' + resource = _resource_from_cache_prefix('GET', traced_cache.cache) + assert resource == expected_resource + + def test_resource_from_cache_with_empty_prefix(self): + # create the TracedCache instance for a Flask app + tracer = Tracer() + Cache = get_traced_cache(tracer, service=self.SERVICE) + app = Flask(__name__) + config = { + 'CACHE_TYPE': 'redis', + 'CACHE_REDIS_PORT': REDIS_CONFIG['port'], + 'CACHE_KEY_PREFIX': '', + } + traced_cache = Cache(app, config=config) + # expect a resource with a prefix + expected_resource = 'get' + resource = _resource_from_cache_prefix('GET', traced_cache.cache) + assert resource == expected_resource + + def test_resource_from_cache_without_prefix(self): + # create the TracedCache instance for a Flask app + tracer = Tracer() + Cache = get_traced_cache(tracer, service=self.SERVICE) + app = Flask(__name__) + traced_cache = Cache(app, config={'CACHE_TYPE': 'redis'}) + # expect only the resource name + expected_resource = 'get' + resource = _resource_from_cache_prefix('GET', traced_cache.config) + assert resource == expected_resource diff --git a/tests/contrib/flask_cache/test_wrapper_safety.py b/tests/contrib/flask_cache/test_wrapper_safety.py new file mode 100644 index 0000000000..302e3a2dbf --- /dev/null +++ b/tests/contrib/flask_cache/test_wrapper_safety.py @@ -0,0 +1,231 @@ +# -*- coding: utf-8 -*- +import unittest + +# project +from ddtrace.ext import net +from ddtrace.tracer import Tracer +from ddtrace.contrib.flask_cache import get_traced_cache +from ddtrace.contrib.flask_cache.tracers import CACHE_BACKEND + +# 3rd party +from flask import Flask +from redis.exceptions import ConnectionError +import pytest + +# testing +from ...test_tracer import DummyWriter + + +class FlaskCacheWrapperTest(unittest.TestCase): + SERVICE = 'test-flask-cache' + + def test_cache_get_without_arguments(self): + # initialize the dummy writer + writer = DummyWriter() + tracer = Tracer() + tracer.writer = writer + + # create the TracedCache instance for a Flask app + Cache = get_traced_cache(tracer, service=self.SERVICE) + app = Flask(__name__) + cache = Cache(app, config={'CACHE_TYPE': 'simple'}) + + # make a wrong call + with pytest.raises(TypeError) as ex: + cache.get() + + # ensure that the error is not caused by our tracer + assert 'get()' in ex.value.args[0] + assert 'argument' in ex.value.args[0] + spans = writer.pop() + # an error trace must be sent + assert len(spans) == 1 + span = spans[0] + assert span.service == self.SERVICE + assert span.resource == 'get' + assert span.name == 'flask_cache.cmd' + assert span.span_type == 'cache' + assert span.error == 1 + + def test_cache_set_without_arguments(self): + # initialize the dummy writer + writer = DummyWriter() + tracer = Tracer() + tracer.writer = writer + + # create the TracedCache instance for a Flask app + Cache = get_traced_cache(tracer, service=self.SERVICE) + app = Flask(__name__) + cache = Cache(app, config={'CACHE_TYPE': 'simple'}) + + # make a wrong call + with pytest.raises(TypeError) as ex: + cache.set() + + # ensure that the error is not caused by our tracer + assert 'set()' in ex.value.args[0] + assert 'argument' in ex.value.args[0] + spans = writer.pop() + # an error trace must be sent + assert len(spans) == 1 + span = spans[0] + assert span.service == self.SERVICE + assert span.resource == 'set' + assert span.name == 'flask_cache.cmd' + assert span.span_type == 'cache' + assert span.error == 1 + + def test_cache_add_without_arguments(self): + # initialize the dummy writer + writer = DummyWriter() + tracer = Tracer() + tracer.writer = writer + + # create the TracedCache instance for a Flask app + Cache = get_traced_cache(tracer, service=self.SERVICE) + app = Flask(__name__) + cache = Cache(app, config={'CACHE_TYPE': 'simple'}) + + # make a wrong call + with pytest.raises(TypeError) as ex: + cache.add() + + # ensure that the error is not caused by our tracer + assert 'add()' in ex.value.args[0] + assert 'argument' in ex.value.args[0] + spans = writer.pop() + # an error trace must be sent + assert len(spans) == 1 + span = spans[0] + assert span.service == self.SERVICE + assert span.resource == 'add' + assert span.name == 'flask_cache.cmd' + assert span.span_type == 'cache' + assert span.error == 1 + + def test_cache_delete_without_arguments(self): + # initialize the dummy writer + writer = DummyWriter() + tracer = Tracer() + tracer.writer = writer + + # create the TracedCache instance for a Flask app + Cache = get_traced_cache(tracer, service=self.SERVICE) + app = Flask(__name__) + cache = Cache(app, config={'CACHE_TYPE': 'simple'}) + + # make a wrong call + with pytest.raises(TypeError) as ex: + cache.delete() + + # ensure that the error is not caused by our tracer + assert 'delete()' in ex.value.args[0] + assert 'argument' in ex.value.args[0] + spans = writer.pop() + # an error trace must be sent + assert len(spans) == 1 + span = spans[0] + assert span.service == self.SERVICE + assert span.resource == 'delete' + assert span.name == 'flask_cache.cmd' + assert span.span_type == 'cache' + assert span.error == 1 + + def test_cache_set_many_without_arguments(self): + # initialize the dummy writer + writer = DummyWriter() + tracer = Tracer() + tracer.writer = writer + + # create the TracedCache instance for a Flask app + Cache = get_traced_cache(tracer, service=self.SERVICE) + app = Flask(__name__) + cache = Cache(app, config={'CACHE_TYPE': 'simple'}) + + # make a wrong call + with pytest.raises(TypeError) as ex: + cache.set_many() + + # ensure that the error is not caused by our tracer + assert 'set_many()' in ex.value.args[0] + assert 'argument' in ex.value.args[0] + spans = writer.pop() + # an error trace must be sent + assert len(spans) == 1 + span = spans[0] + assert span.service == self.SERVICE + assert span.resource == 'set_many' + assert span.name == 'flask_cache.cmd' + assert span.span_type == 'cache' + assert span.error == 1 + + def test_redis_cache_tracing_with_a_wrong_connection(self): + # initialize the dummy writer + writer = DummyWriter() + tracer = Tracer() + tracer.writer = writer + + # create the TracedCache instance for a Flask app + Cache = get_traced_cache(tracer, service=self.SERVICE) + app = Flask(__name__) + config = { + 'CACHE_TYPE': 'redis', + 'CACHE_REDIS_PORT': 2230, + 'CACHE_REDIS_HOST': '127.0.0.1' + } + cache = Cache(app, config=config) + + # use a wrong redis connection + with pytest.raises(ConnectionError) as ex: + cache.get(u'á_complex_operation') + + # ensure that the error is not caused by our tracer + assert '127.0.0.1:2230. Connection refused.' in ex.value.args[0] + spans = writer.pop() + # an error trace must be sent + assert len(spans) == 1 + span = spans[0] + assert span.service == self.SERVICE + assert span.resource == 'get' + assert span.name == 'flask_cache.cmd' + assert span.span_type == 'cache' + assert span.meta[CACHE_BACKEND] == 'redis' + assert span.meta[net.TARGET_HOST] == '127.0.0.1' + assert span.metrics[net.TARGET_PORT] == 2230 + assert span.error == 1 + + def test_memcached_cache_tracing_with_a_wrong_connection(self): + # initialize the dummy writer + writer = DummyWriter() + tracer = Tracer() + tracer.writer = writer + + # create the TracedCache instance for a Flask app + Cache = get_traced_cache(tracer, service=self.SERVICE) + app = Flask(__name__) + config = { + 'CACHE_TYPE': 'memcached', + 'CACHE_MEMCACHED_SERVERS': ['localhost:2230'], + } + cache = Cache(app, config=config) + + # use a wrong memcached connection + try: + cache.get(u'á_complex_operation') + except Exception: + pass + + # ensure that the error is not caused by our tracer + spans = writer.pop() + assert len(spans) == 1 + span = spans[0] + assert span.service == self.SERVICE + assert span.resource == 'get' + assert span.name == 'flask_cache.cmd' + assert span.span_type == 'cache' + assert span.meta[CACHE_BACKEND] == 'memcached' + assert span.meta[net.TARGET_HOST] == 'localhost' + assert span.metrics[net.TARGET_PORT] == 2230 + + # the pylibmc backend raises an exception and memcached backend does + # not, so don't test anything about the status. diff --git a/tests/contrib/futures/__init__.py b/tests/contrib/futures/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/futures/test_propagation.py b/tests/contrib/futures/test_propagation.py new file mode 100644 index 0000000000..530d7b7699 --- /dev/null +++ b/tests/contrib/futures/test_propagation.py @@ -0,0 +1,356 @@ +import time +import concurrent + +from ddtrace.contrib.futures import patch, unpatch + +from tests.opentracer.utils import init_tracer +from ...base import BaseTracerTestCase + + +class PropagationTestCase(BaseTracerTestCase): + """Ensures the Context Propagation works between threads + when the ``futures`` library is used, or when the + ``concurrent`` module is available (Python 3 only) + """ + def setUp(self): + super(PropagationTestCase, self).setUp() + + # instrument ``concurrent`` + patch() + + def tearDown(self): + # remove instrumentation + unpatch() + + super(PropagationTestCase, self).tearDown() + + def test_propagation(self): + # it must propagate the tracing context if available + + def fn(): + # an active context must be available + # DEV: With `ContextManager` `.active()` will never be `None` + self.assertIsNotNone(self.tracer.context_provider.active()) + with self.tracer.trace('executor.thread'): + return 42 + + with self.override_global_tracer(): + with self.tracer.trace('main.thread'): + with concurrent.futures.ThreadPoolExecutor(max_workers=2) as executor: + future = executor.submit(fn) + result = future.result() + # assert the right result + self.assertEqual(result, 42) + + # the trace must be completed + self.assert_structure( + dict(name='main.thread'), + ( + dict(name='executor.thread'), + ), + ) + + def test_propagation_with_params(self): + # instrumentation must proxy arguments if available + + def fn(value, key=None): + # an active context must be available + # DEV: With `ThreadLocalContext` `.active()` will never be `None` + self.assertIsNotNone(self.tracer.context_provider.active()) + with self.tracer.trace('executor.thread'): + return value, key + + with self.override_global_tracer(): + with self.tracer.trace('main.thread'): + with concurrent.futures.ThreadPoolExecutor(max_workers=2) as executor: + future = executor.submit(fn, 42, 'CheeseShop') + value, key = future.result() + # assert the right result + self.assertEqual(value, 42) + self.assertEqual(key, 'CheeseShop') + + # the trace must be completed + self.assert_structure( + dict(name='main.thread'), + ( + dict(name='executor.thread'), + ), + ) + + def test_disabled_instrumentation(self): + # it must not propagate if the module is disabled + unpatch() + + def fn(): + # an active context must be available + # DEV: With `ThreadLocalContext` `.active()` will never be `None` + self.assertIsNotNone(self.tracer.context_provider.active()) + with self.tracer.trace('executor.thread'): + return 42 + + with self.override_global_tracer(): + with self.tracer.trace('main.thread'): + with concurrent.futures.ThreadPoolExecutor(max_workers=2) as executor: + future = executor.submit(fn) + result = future.result() + # assert the right result + self.assertEqual(result, 42) + + # we provide two different traces + self.assert_span_count(2) + + # Retrieve the root spans (no parents) + # DEV: Results are sorted based on root span start time + traces = self.get_root_spans() + self.assertEqual(len(traces), 2) + + traces[0].assert_structure(dict(name='main.thread')) + traces[1].assert_structure(dict(name='executor.thread')) + + def test_double_instrumentation(self): + # double instrumentation must not happen + patch() + + def fn(): + with self.tracer.trace('executor.thread'): + return 42 + + with self.override_global_tracer(): + with self.tracer.trace('main.thread'): + with concurrent.futures.ThreadPoolExecutor(max_workers=2) as executor: + future = executor.submit(fn) + result = future.result() + # assert the right result + self.assertEqual(result, 42) + + # the trace must be completed + self.assert_structure( + dict(name='main.thread'), + ( + dict(name='executor.thread'), + ), + ) + + def test_no_parent_span(self): + def fn(): + with self.tracer.trace('executor.thread'): + return 42 + + with self.override_global_tracer(): + with concurrent.futures.ThreadPoolExecutor(max_workers=2) as executor: + future = executor.submit(fn) + result = future.result() + # assert the right result + self.assertEqual(result, 42) + + # the trace must be completed + self.assert_structure(dict(name='executor.thread')) + + def test_multiple_futures(self): + def fn(): + with self.tracer.trace('executor.thread'): + return 42 + + with self.override_global_tracer(): + with self.tracer.trace('main.thread'): + with concurrent.futures.ThreadPoolExecutor(max_workers=4) as executor: + futures = [executor.submit(fn) for _ in range(4)] + for future in futures: + result = future.result() + # assert the right result + self.assertEqual(result, 42) + + # the trace must be completed + self.assert_structure( + dict(name='main.thread'), + ( + dict(name='executor.thread'), + dict(name='executor.thread'), + dict(name='executor.thread'), + dict(name='executor.thread'), + ), + ) + + def test_multiple_futures_no_parent(self): + def fn(): + with self.tracer.trace('executor.thread'): + return 42 + + with self.override_global_tracer(): + with concurrent.futures.ThreadPoolExecutor(max_workers=4) as executor: + futures = [executor.submit(fn) for _ in range(4)] + for future in futures: + result = future.result() + # assert the right result + self.assertEqual(result, 42) + + # the trace must be completed + self.assert_span_count(4) + traces = self.get_root_spans() + self.assertEqual(len(traces), 4) + for trace in traces: + trace.assert_structure(dict(name='executor.thread')) + + def test_nested_futures(self): + def fn2(): + with self.tracer.trace('nested.thread'): + return 42 + + def fn(): + with self.tracer.trace('executor.thread'): + with concurrent.futures.ThreadPoolExecutor(max_workers=2) as executor: + future = executor.submit(fn2) + result = future.result() + self.assertEqual(result, 42) + return result + + with self.override_global_tracer(): + with self.tracer.trace('main.thread'): + with concurrent.futures.ThreadPoolExecutor(max_workers=2) as executor: + future = executor.submit(fn) + result = future.result() + # assert the right result + self.assertEqual(result, 42) + + # the trace must be completed + self.assert_span_count(3) + self.assert_structure( + dict(name='main.thread'), + ( + ( + dict(name='executor.thread'), + ( + dict(name='nested.thread'), + ), + ), + ), + ) + + def test_multiple_nested_futures(self): + def fn2(): + with self.tracer.trace('nested.thread'): + return 42 + + def fn(): + with self.tracer.trace('executor.thread'): + with concurrent.futures.ThreadPoolExecutor(max_workers=2) as executor: + futures = [executor.submit(fn2) for _ in range(4)] + for future in futures: + result = future.result() + self.assertEqual(result, 42) + return result + + with self.override_global_tracer(): + with self.tracer.trace('main.thread'): + with concurrent.futures.ThreadPoolExecutor(max_workers=2) as executor: + futures = [executor.submit(fn) for _ in range(4)] + for future in futures: + result = future.result() + # assert the right result + self.assertEqual(result, 42) + + # the trace must be completed + self.assert_structure( + dict(name='main.thread'), + ( + ( + dict(name='executor.thread'), + ( + dict(name='nested.thread'), + ) * 4, + ), + ) * 4, + ) + + def test_multiple_nested_futures_no_parent(self): + def fn2(): + with self.tracer.trace('nested.thread'): + return 42 + + def fn(): + with self.tracer.trace('executor.thread'): + with concurrent.futures.ThreadPoolExecutor(max_workers=2) as executor: + futures = [executor.submit(fn2) for _ in range(4)] + for future in futures: + result = future.result() + self.assertEqual(result, 42) + return result + + with self.override_global_tracer(): + with concurrent.futures.ThreadPoolExecutor(max_workers=2) as executor: + futures = [executor.submit(fn) for _ in range(4)] + for future in futures: + result = future.result() + # assert the right result + self.assertEqual(result, 42) + + # the trace must be completed + traces = self.get_root_spans() + self.assertEqual(len(traces), 4) + + for trace in traces: + trace.assert_structure( + dict(name='executor.thread'), + ( + dict(name='nested.thread'), + ) * 4, + ) + + def test_send_trace_when_finished(self): + # it must send the trace only when all threads are finished + + def fn(): + with self.tracer.trace('executor.thread'): + # wait before returning + time.sleep(0.05) + return 42 + + with self.override_global_tracer(): + with self.tracer.trace('main.thread'): + # don't wait for the execution + executor = concurrent.futures.ThreadPoolExecutor(max_workers=2) + future = executor.submit(fn) + time.sleep(0.01) + + # assert main thread span is fniished first + self.assert_span_count(1) + self.assert_structure(dict(name='main.thread')) + + # then wait for the second thread and send the trace + result = future.result() + self.assertEqual(result, 42) + + self.assert_span_count(2) + self.assert_structure( + dict(name='main.thread'), + ( + dict(name='executor.thread'), + ), + ) + + def test_propagation_ot(self): + """OpenTracing version of test_propagation.""" + # it must propagate the tracing context if available + ot_tracer = init_tracer('my_svc', self.tracer) + + def fn(): + # an active context must be available + self.assertTrue(self.tracer.context_provider.active() is not None) + with self.tracer.trace('executor.thread'): + return 42 + + with self.override_global_tracer(): + with ot_tracer.start_active_span('main.thread'): + with concurrent.futures.ThreadPoolExecutor(max_workers=2) as executor: + future = executor.submit(fn) + result = future.result() + # assert the right result + self.assertEqual(result, 42) + + # the trace must be completed + self.assert_structure( + dict(name='main.thread'), + ( + dict(name='executor.thread'), + ), + ) diff --git a/tests/contrib/gevent/__init__.py b/tests/contrib/gevent/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/gevent/test_tracer.py b/tests/contrib/gevent/test_tracer.py new file mode 100644 index 0000000000..3f2ac54a5f --- /dev/null +++ b/tests/contrib/gevent/test_tracer.py @@ -0,0 +1,438 @@ +import gevent +import gevent.pool +import ddtrace + +from ddtrace.constants import SAMPLING_PRIORITY_KEY +from ddtrace.context import Context +from ddtrace.contrib.gevent import patch, unpatch +from ddtrace.ext.priority import USER_KEEP + +from unittest import TestCase +from opentracing.scope_managers.gevent import GeventScopeManager +from tests.opentracer.utils import init_tracer +from tests.test_tracer import get_dummy_tracer + +from .utils import silence_errors + + +class TestGeventTracer(TestCase): + """ + Ensures that greenlets are properly traced when using + the default Tracer. + """ + def setUp(self): + # use a dummy tracer + self.tracer = get_dummy_tracer() + self._original_tracer = ddtrace.tracer + ddtrace.tracer = self.tracer + # trace gevent + patch() + + def tearDown(self): + # clean the active Context + self.tracer.context_provider.activate(None) + # restore the original tracer + ddtrace.tracer = self._original_tracer + # untrace gevent + unpatch() + + def test_main_greenlet(self): + # the main greenlet must not be affected by the tracer + main_greenlet = gevent.getcurrent() + ctx = getattr(main_greenlet, '__datadog_context', None) + assert ctx is None + + def test_main_greenlet_context(self): + # the main greenlet must have a ``Context`` if called + ctx_tracer = self.tracer.get_call_context() + main_greenlet = gevent.getcurrent() + ctx_greenlet = getattr(main_greenlet, '__datadog_context', None) + assert ctx_tracer is ctx_greenlet + assert len(ctx_tracer._trace) == 0 + + def test_get_call_context(self): + # it should return the context attached to the provider + def greenlet(): + return self.tracer.get_call_context() + + g = gevent.spawn(greenlet) + g.join() + ctx = g.value + stored_ctx = getattr(g, '__datadog_context', None) + assert stored_ctx is not None + assert ctx == stored_ctx + + def test_get_call_context_twice(self): + # it should return the same Context if called twice + def greenlet(): + assert self.tracer.get_call_context() == self.tracer.get_call_context() + return True + + g = gevent.spawn(greenlet) + g.join() + assert g.value + + def test_spawn_greenlet_no_context(self): + # a greenlet will not have a context if the tracer is not used + def greenlet(): + gevent.sleep(0.01) + + g = gevent.spawn(greenlet) + g.join() + ctx = getattr(g, '__datadog_context', None) + assert ctx is None + + def test_spawn_greenlet(self): + # a greenlet will have a context if the tracer is used + def greenlet(): + self.tracer.get_call_context() + + g = gevent.spawn(greenlet) + g.join() + ctx = getattr(g, '__datadog_context', None) + assert ctx is not None + assert 0 == len(ctx._trace) + + def test_spawn_later_greenlet(self): + # a greenlet will have a context if the tracer is used even + # if it's spawned later + def greenlet(): + self.tracer.get_call_context() + + g = gevent.spawn_later(0.01, greenlet) + g.join() + ctx = getattr(g, '__datadog_context', None) + assert ctx is not None + assert 0 == len(ctx._trace) + + def test_trace_greenlet(self): + # a greenlet can be traced using the trace API + def greenlet(): + with self.tracer.trace('greenlet') as span: + span.resource = 'base' + + gevent.spawn(greenlet).join() + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + assert 'greenlet' == traces[0][0].name + assert 'base' == traces[0][0].resource + + def test_trace_map_greenlet(self): + # a greenlet can be traced using the trace API + def greenlet(_): + with self.tracer.trace('greenlet', resource='base'): + gevent.sleep(0.01) + + funcs = [ + gevent.pool.Group().map, + gevent.pool.Group().imap, + gevent.pool.Group().imap_unordered, + gevent.pool.Pool(2).map, + gevent.pool.Pool(2).imap, + gevent.pool.Pool(2).imap_unordered, + ] + for func in funcs: + with self.tracer.trace('outer', resource='base') as span: + # Use a list to force evaluation + list(func(greenlet, [0, 1, 2])) + traces = self.tracer.writer.pop_traces() + + assert 4 == len(traces) + spans = [] + outer_span = None + for t in traces: + assert 1 == len(t) + span = t[0] + spans.append(span) + if span.name == 'outer': + outer_span = span + + assert outer_span is not None + assert 'base' == outer_span.resource + inner_spans = [s for s in spans if s is not outer_span] + for s in inner_spans: + assert 'greenlet' == s.name + assert 'base' == s.resource + assert outer_span.trace_id == s.trace_id + assert outer_span.span_id == s.parent_id + + def test_trace_later_greenlet(self): + # a greenlet can be traced using the trace API + def greenlet(): + with self.tracer.trace('greenlet') as span: + span.resource = 'base' + + gevent.spawn_later(0.01, greenlet).join() + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + assert 'greenlet' == traces[0][0].name + assert 'base' == traces[0][0].resource + + def test_trace_sampling_priority_spawn_multiple_greenlets_multiple_traces(self): + # multiple greenlets must be part of the same trace + def entrypoint(): + with self.tracer.trace('greenlet.main') as span: + span.context.sampling_priority = USER_KEEP + span.resource = 'base' + jobs = [gevent.spawn(green_1), gevent.spawn(green_2)] + gevent.joinall(jobs) + + def green_1(): + with self.tracer.trace('greenlet.worker') as span: + span.set_tag('worker_id', '1') + gevent.sleep(0.01) + + def green_2(): + with self.tracer.trace('greenlet.worker') as span: + span.set_tag('worker_id', '2') + gevent.sleep(0.01) + + gevent.spawn(entrypoint).join() + traces = self.tracer.writer.pop_traces() + assert 3 == len(traces) + assert 1 == len(traces[0]) + parent_span = traces[2][0] + worker_1 = traces[0][0] + worker_2 = traces[1][0] + # check sampling priority + assert parent_span.get_metric(SAMPLING_PRIORITY_KEY) == USER_KEEP + assert worker_1.get_metric(SAMPLING_PRIORITY_KEY) == USER_KEEP + assert worker_2.get_metric(SAMPLING_PRIORITY_KEY) == USER_KEEP + + def test_trace_spawn_multiple_greenlets_multiple_traces(self): + # multiple greenlets must be part of the same trace + def entrypoint(): + with self.tracer.trace('greenlet.main') as span: + span.resource = 'base' + jobs = [gevent.spawn(green_1), gevent.spawn(green_2)] + gevent.joinall(jobs) + + def green_1(): + with self.tracer.trace('greenlet.worker') as span: + span.set_tag('worker_id', '1') + gevent.sleep(0.01) + + def green_2(): + with self.tracer.trace('greenlet.worker') as span: + span.set_tag('worker_id', '2') + gevent.sleep(0.01) + + gevent.spawn(entrypoint).join() + traces = self.tracer.writer.pop_traces() + assert 3 == len(traces) + assert 1 == len(traces[0]) + parent_span = traces[2][0] + worker_1 = traces[0][0] + worker_2 = traces[1][0] + # check spans data and hierarchy + assert parent_span.name == 'greenlet.main' + assert parent_span.resource == 'base' + assert worker_1.get_tag('worker_id') == '1' + assert worker_1.name == 'greenlet.worker' + assert worker_1.resource == 'greenlet.worker' + assert worker_1.parent_id == parent_span.span_id + assert worker_2.get_tag('worker_id') == '2' + assert worker_2.name == 'greenlet.worker' + assert worker_2.resource == 'greenlet.worker' + assert worker_2.parent_id == parent_span.span_id + + def test_trace_spawn_later_multiple_greenlets_multiple_traces(self): + # multiple greenlets must be part of the same trace + def entrypoint(): + with self.tracer.trace('greenlet.main') as span: + span.resource = 'base' + jobs = [gevent.spawn_later(0.01, green_1), gevent.spawn_later(0.01, green_2)] + gevent.joinall(jobs) + + def green_1(): + with self.tracer.trace('greenlet.worker') as span: + span.set_tag('worker_id', '1') + gevent.sleep(0.01) + + def green_2(): + with self.tracer.trace('greenlet.worker') as span: + span.set_tag('worker_id', '2') + gevent.sleep(0.01) + + gevent.spawn(entrypoint).join() + traces = self.tracer.writer.pop_traces() + assert 3 == len(traces) + assert 1 == len(traces[0]) + parent_span = traces[2][0] + worker_1 = traces[0][0] + worker_2 = traces[1][0] + # check spans data and hierarchy + assert parent_span.name == 'greenlet.main' + assert parent_span.resource == 'base' + assert worker_1.get_tag('worker_id') == '1' + assert worker_1.name == 'greenlet.worker' + assert worker_1.resource == 'greenlet.worker' + assert worker_1.parent_id == parent_span.span_id + assert worker_2.get_tag('worker_id') == '2' + assert worker_2.name == 'greenlet.worker' + assert worker_2.resource == 'greenlet.worker' + assert worker_2.parent_id == parent_span.span_id + + def test_trace_concurrent_calls(self): + # create multiple futures so that we expect multiple + # traces instead of a single one + def greenlet(): + with self.tracer.trace('greenlet'): + gevent.sleep(0.01) + + jobs = [gevent.spawn(greenlet) for x in range(100)] + gevent.joinall(jobs) + + traces = self.tracer.writer.pop_traces() + assert 100 == len(traces) + assert 1 == len(traces[0]) + assert 'greenlet' == traces[0][0].name + + def test_propagation_with_new_context(self): + # create multiple futures so that we expect multiple + # traces instead of a single one + ctx = Context(trace_id=100, span_id=101) + self.tracer.context_provider.activate(ctx) + + def greenlet(): + with self.tracer.trace('greenlet'): + gevent.sleep(0.01) + + jobs = [gevent.spawn(greenlet) for x in range(1)] + gevent.joinall(jobs) + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + assert traces[0][0].trace_id == 100 + assert traces[0][0].parent_id == 101 + + def test_trace_concurrent_spawn_later_calls(self): + # create multiple futures so that we expect multiple + # traces instead of a single one, even if greenlets + # are delayed + def greenlet(): + with self.tracer.trace('greenlet'): + gevent.sleep(0.01) + + jobs = [gevent.spawn_later(0.01, greenlet) for x in range(100)] + gevent.joinall(jobs) + + traces = self.tracer.writer.pop_traces() + assert 100 == len(traces) + assert 1 == len(traces[0]) + assert 'greenlet' == traces[0][0].name + + @silence_errors + def test_exception(self): + # it should catch the exception like usual + def greenlet(): + with self.tracer.trace('greenlet'): + raise Exception('Custom exception') + + g = gevent.spawn(greenlet) + g.join() + assert isinstance(g.exception, Exception) + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + span = traces[0][0] + assert 1 == span.error + assert 'Custom exception' == span.get_tag('error.msg') + assert 'Traceback (most recent call last)' in span.get_tag('error.stack') + + def _assert_spawn_multiple_greenlets(self, spans): + """A helper to assert the parenting of a trace when greenlets are + spawned within another greenlet. + + This is meant to help maintain compatibility between the Datadog and + OpenTracing tracer implementations. + + Note that for gevent there is differing behaviour between the context + management so the traces are not identical in form. However, the + parenting of the spans must remain the same. + """ + assert len(spans) == 3 + + parent = None + worker_1 = None + worker_2 = None + # get the spans since they can be in any order + for span in spans: + if span.name == 'greenlet.main': + parent = span + if span.name == 'greenlet.worker1': + worker_1 = span + if span.name == 'greenlet.worker2': + worker_2 = span + assert parent + assert worker_1 + assert worker_2 + + # confirm the parenting + assert worker_1.parent_id == parent.span_id + assert worker_2.parent_id == parent.span_id + + # check spans data and hierarchy + assert parent.name == 'greenlet.main' + assert worker_1.get_tag('worker_id') == '1' + assert worker_1.name == 'greenlet.worker1' + assert worker_1.resource == 'greenlet.worker1' + assert worker_2.get_tag('worker_id') == '2' + assert worker_2.name == 'greenlet.worker2' + assert worker_2.resource == 'greenlet.worker2' + + def test_trace_spawn_multiple_greenlets_multiple_traces_dd(self): + """Datadog version of the same test.""" + def entrypoint(): + with self.tracer.trace('greenlet.main') as span: + span.resource = 'base' + jobs = [gevent.spawn(green_1), gevent.spawn(green_2)] + gevent.joinall(jobs) + + def green_1(): + with self.tracer.trace('greenlet.worker1') as span: + span.set_tag('worker_id', '1') + gevent.sleep(0.01) + + # note that replacing the `tracer.trace` call here with the + # OpenTracing equivalent will cause the checks to fail + def green_2(): + with self.tracer.trace('greenlet.worker2') as span: + span.set_tag('worker_id', '2') + gevent.sleep(0.01) + + gevent.spawn(entrypoint).join() + spans = self.tracer.writer.pop() + self._assert_spawn_multiple_greenlets(spans) + + def test_trace_spawn_multiple_greenlets_multiple_traces_ot(self): + """OpenTracing version of the same test.""" + + ot_tracer = init_tracer('my_svc', self.tracer, scope_manager=GeventScopeManager()) + + def entrypoint(): + with ot_tracer.start_active_span('greenlet.main') as span: + span.resource = 'base' + jobs = [gevent.spawn(green_1), gevent.spawn(green_2)] + gevent.joinall(jobs) + + def green_1(): + with self.tracer.trace('greenlet.worker1') as span: + span.set_tag('worker_id', '1') + gevent.sleep(0.01) + + # note that replacing the `tracer.trace` call here with the + # OpenTracing equivalent will cause the checks to fail + def green_2(): + with ot_tracer.start_active_span('greenlet.worker2') as scope: + scope.span.set_tag('worker_id', '2') + gevent.sleep(0.01) + + gevent.spawn(entrypoint).join() + + spans = self.tracer.writer.pop() + self._assert_spawn_multiple_greenlets(spans) diff --git a/tests/contrib/gevent/utils.py b/tests/contrib/gevent/utils.py new file mode 100644 index 0000000000..39118564d6 --- /dev/null +++ b/tests/contrib/gevent/utils.py @@ -0,0 +1,19 @@ +import gevent + +from functools import wraps + + +_NOT_ERROR = gevent.hub.Hub.NOT_ERROR + + +def silence_errors(f): + """ + Test decorator for gevent that silences all errors when + a greenlet raises an exception. + """ + @wraps(f) + def wrapper(*args, **kwargs): + gevent.hub.Hub.NOT_ERROR = (Exception,) + f(*args, **kwargs) + gevent.hub.Hub.NOT_ERROR = _NOT_ERROR + return wrapper diff --git a/tests/contrib/grpc/__init__.py b/tests/contrib/grpc/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/grpc/hello.proto b/tests/contrib/grpc/hello.proto new file mode 100644 index 0000000000..38726c79bf --- /dev/null +++ b/tests/contrib/grpc/hello.proto @@ -0,0 +1,20 @@ +syntax = "proto3"; +package helloworld; + +service Hello { + // Sends a greeting + rpc SayHello (HelloRequest) returns (HelloReply) {} + rpc SayHelloTwice (HelloRequest) returns (stream HelloReply) {} + rpc SayHelloRepeatedly (stream HelloRequest) returns (stream HelloReply) {} + rpc SayHelloLast (stream HelloRequest) returns (HelloReply) {} +} + +// The request message containing the user's name. +message HelloRequest { + string name = 1; +} + +// The response message containing the greetings +message HelloReply { + string message = 1; +} diff --git a/tests/contrib/grpc/hello_pb2.py b/tests/contrib/grpc/hello_pb2.py new file mode 100644 index 0000000000..3b8bfb011e --- /dev/null +++ b/tests/contrib/grpc/hello_pb2.py @@ -0,0 +1,161 @@ +# flake8: noqa +# -*- coding: utf-8 -*- +# Generated by the protocol buffer compiler. DO NOT EDIT! +# source: hello.proto + +import sys +_b=sys.version_info[0]<3 and (lambda x:x) or (lambda x:x.encode('latin1')) +from google.protobuf import descriptor as _descriptor +from google.protobuf import message as _message +from google.protobuf import reflection as _reflection +from google.protobuf import symbol_database as _symbol_database +# @@protoc_insertion_point(imports) + +_sym_db = _symbol_database.Default() + + + + +DESCRIPTOR = _descriptor.FileDescriptor( + name='hello.proto', + package='helloworld', + syntax='proto3', + serialized_options=None, + serialized_pb=_b('\n\x0bhello.proto\x12\nhelloworld\"\x1c\n\x0cHelloRequest\x12\x0c\n\x04name\x18\x01 \x01(\t\"\x1d\n\nHelloReply\x12\x0f\n\x07message\x18\x01 \x01(\t2\xa2\x02\n\x05Hello\x12>\n\x08SayHello\x12\x18.helloworld.HelloRequest\x1a\x16.helloworld.HelloReply\"\x00\x12\x45\n\rSayHelloTwice\x12\x18.helloworld.HelloRequest\x1a\x16.helloworld.HelloReply\"\x00\x30\x01\x12L\n\x12SayHelloRepeatedly\x12\x18.helloworld.HelloRequest\x1a\x16.helloworld.HelloReply\"\x00(\x01\x30\x01\x12\x44\n\x0cSayHelloLast\x12\x18.helloworld.HelloRequest\x1a\x16.helloworld.HelloReply\"\x00(\x01\x62\x06proto3') +) + + + + +_HELLOREQUEST = _descriptor.Descriptor( + name='HelloRequest', + full_name='helloworld.HelloRequest', + filename=None, + file=DESCRIPTOR, + containing_type=None, + fields=[ + _descriptor.FieldDescriptor( + name='name', full_name='helloworld.HelloRequest.name', index=0, + number=1, type=9, cpp_type=9, label=1, + has_default_value=False, default_value=_b("").decode('utf-8'), + message_type=None, enum_type=None, containing_type=None, + is_extension=False, extension_scope=None, + serialized_options=None, file=DESCRIPTOR), + ], + extensions=[ + ], + nested_types=[], + enum_types=[ + ], + serialized_options=None, + is_extendable=False, + syntax='proto3', + extension_ranges=[], + oneofs=[ + ], + serialized_start=27, + serialized_end=55, +) + + +_HELLOREPLY = _descriptor.Descriptor( + name='HelloReply', + full_name='helloworld.HelloReply', + filename=None, + file=DESCRIPTOR, + containing_type=None, + fields=[ + _descriptor.FieldDescriptor( + name='message', full_name='helloworld.HelloReply.message', index=0, + number=1, type=9, cpp_type=9, label=1, + has_default_value=False, default_value=_b("").decode('utf-8'), + message_type=None, enum_type=None, containing_type=None, + is_extension=False, extension_scope=None, + serialized_options=None, file=DESCRIPTOR), + ], + extensions=[ + ], + nested_types=[], + enum_types=[ + ], + serialized_options=None, + is_extendable=False, + syntax='proto3', + extension_ranges=[], + oneofs=[ + ], + serialized_start=57, + serialized_end=86, +) + +DESCRIPTOR.message_types_by_name['HelloRequest'] = _HELLOREQUEST +DESCRIPTOR.message_types_by_name['HelloReply'] = _HELLOREPLY +_sym_db.RegisterFileDescriptor(DESCRIPTOR) + +HelloRequest = _reflection.GeneratedProtocolMessageType('HelloRequest', (_message.Message,), { + 'DESCRIPTOR' : _HELLOREQUEST, + '__module__' : 'hello_pb2' + # @@protoc_insertion_point(class_scope:helloworld.HelloRequest) + }) +_sym_db.RegisterMessage(HelloRequest) + +HelloReply = _reflection.GeneratedProtocolMessageType('HelloReply', (_message.Message,), { + 'DESCRIPTOR' : _HELLOREPLY, + '__module__' : 'hello_pb2' + # @@protoc_insertion_point(class_scope:helloworld.HelloReply) + }) +_sym_db.RegisterMessage(HelloReply) + + + +_HELLO = _descriptor.ServiceDescriptor( + name='Hello', + full_name='helloworld.Hello', + file=DESCRIPTOR, + index=0, + serialized_options=None, + serialized_start=89, + serialized_end=379, + methods=[ + _descriptor.MethodDescriptor( + name='SayHello', + full_name='helloworld.Hello.SayHello', + index=0, + containing_service=None, + input_type=_HELLOREQUEST, + output_type=_HELLOREPLY, + serialized_options=None, + ), + _descriptor.MethodDescriptor( + name='SayHelloTwice', + full_name='helloworld.Hello.SayHelloTwice', + index=1, + containing_service=None, + input_type=_HELLOREQUEST, + output_type=_HELLOREPLY, + serialized_options=None, + ), + _descriptor.MethodDescriptor( + name='SayHelloRepeatedly', + full_name='helloworld.Hello.SayHelloRepeatedly', + index=2, + containing_service=None, + input_type=_HELLOREQUEST, + output_type=_HELLOREPLY, + serialized_options=None, + ), + _descriptor.MethodDescriptor( + name='SayHelloLast', + full_name='helloworld.Hello.SayHelloLast', + index=3, + containing_service=None, + input_type=_HELLOREQUEST, + output_type=_HELLOREPLY, + serialized_options=None, + ), +]) +_sym_db.RegisterServiceDescriptor(_HELLO) + +DESCRIPTOR.services_by_name['Hello'] = _HELLO + +# @@protoc_insertion_point(module_scope) diff --git a/tests/contrib/grpc/hello_pb2_grpc.py b/tests/contrib/grpc/hello_pb2_grpc.py new file mode 100644 index 0000000000..046ae5d756 --- /dev/null +++ b/tests/contrib/grpc/hello_pb2_grpc.py @@ -0,0 +1,98 @@ +# flake8: noqa +# Generated by the gRPC Python protocol compiler plugin. DO NOT EDIT! +import grpc + +from . import hello_pb2 as hello__pb2 + + +class HelloStub(object): + # missing associated documentation comment in .proto file + pass + + def __init__(self, channel): + """Constructor. + + Args: + channel: A grpc.Channel. + """ + self.SayHello = channel.unary_unary( + '/helloworld.Hello/SayHello', + request_serializer=hello__pb2.HelloRequest.SerializeToString, + response_deserializer=hello__pb2.HelloReply.FromString, + ) + self.SayHelloTwice = channel.unary_stream( + '/helloworld.Hello/SayHelloTwice', + request_serializer=hello__pb2.HelloRequest.SerializeToString, + response_deserializer=hello__pb2.HelloReply.FromString, + ) + self.SayHelloRepeatedly = channel.stream_stream( + '/helloworld.Hello/SayHelloRepeatedly', + request_serializer=hello__pb2.HelloRequest.SerializeToString, + response_deserializer=hello__pb2.HelloReply.FromString, + ) + self.SayHelloLast = channel.stream_unary( + '/helloworld.Hello/SayHelloLast', + request_serializer=hello__pb2.HelloRequest.SerializeToString, + response_deserializer=hello__pb2.HelloReply.FromString, + ) + + +class HelloServicer(object): + # missing associated documentation comment in .proto file + pass + + def SayHello(self, request, context): + """Sends a greeting + """ + context.set_code(grpc.StatusCode.UNIMPLEMENTED) + context.set_details('Method not implemented!') + raise NotImplementedError('Method not implemented!') + + def SayHelloTwice(self, request, context): + # missing associated documentation comment in .proto file + pass + context.set_code(grpc.StatusCode.UNIMPLEMENTED) + context.set_details('Method not implemented!') + raise NotImplementedError('Method not implemented!') + + def SayHelloRepeatedly(self, request_iterator, context): + # missing associated documentation comment in .proto file + pass + context.set_code(grpc.StatusCode.UNIMPLEMENTED) + context.set_details('Method not implemented!') + raise NotImplementedError('Method not implemented!') + + def SayHelloLast(self, request_iterator, context): + # missing associated documentation comment in .proto file + pass + context.set_code(grpc.StatusCode.UNIMPLEMENTED) + context.set_details('Method not implemented!') + raise NotImplementedError('Method not implemented!') + + +def add_HelloServicer_to_server(servicer, server): + rpc_method_handlers = { + 'SayHello': grpc.unary_unary_rpc_method_handler( + servicer.SayHello, + request_deserializer=hello__pb2.HelloRequest.FromString, + response_serializer=hello__pb2.HelloReply.SerializeToString, + ), + 'SayHelloTwice': grpc.unary_stream_rpc_method_handler( + servicer.SayHelloTwice, + request_deserializer=hello__pb2.HelloRequest.FromString, + response_serializer=hello__pb2.HelloReply.SerializeToString, + ), + 'SayHelloRepeatedly': grpc.stream_stream_rpc_method_handler( + servicer.SayHelloRepeatedly, + request_deserializer=hello__pb2.HelloRequest.FromString, + response_serializer=hello__pb2.HelloReply.SerializeToString, + ), + 'SayHelloLast': grpc.stream_unary_rpc_method_handler( + servicer.SayHelloLast, + request_deserializer=hello__pb2.HelloRequest.FromString, + response_serializer=hello__pb2.HelloReply.SerializeToString, + ), + } + generic_handler = grpc.method_handlers_generic_handler( + 'helloworld.Hello', rpc_method_handlers) + server.add_generic_rpc_handlers((generic_handler,)) diff --git a/tests/contrib/grpc/test_grpc.py b/tests/contrib/grpc/test_grpc.py new file mode 100644 index 0000000000..56dc9eb514 --- /dev/null +++ b/tests/contrib/grpc/test_grpc.py @@ -0,0 +1,508 @@ +import grpc +from grpc._grpcio_metadata import __version__ as _GRPC_VERSION +import time +from grpc.framework.foundation import logging_pool +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.contrib.grpc import patch, unpatch +from ddtrace.contrib.grpc import constants +from ddtrace.contrib.grpc.patch import _unpatch_server +from ddtrace.ext import errors +from ddtrace import Pin + +from ...base import BaseTracerTestCase + +from .hello_pb2 import HelloRequest, HelloReply +from .hello_pb2_grpc import add_HelloServicer_to_server, HelloStub, HelloServicer + +_GRPC_PORT = 50531 +_GRPC_VERSION = tuple([int(i) for i in _GRPC_VERSION.split('.')]) + + +class GrpcTestCase(BaseTracerTestCase): + def setUp(self): + super(GrpcTestCase, self).setUp() + patch() + Pin.override(constants.GRPC_PIN_MODULE_SERVER, tracer=self.tracer) + Pin.override(constants.GRPC_PIN_MODULE_CLIENT, tracer=self.tracer) + self._start_server() + + def tearDown(self): + self._stop_server() + # Remove any remaining spans + self.tracer.writer.pop() + # Unpatch grpc + unpatch() + super(GrpcTestCase, self).tearDown() + + def get_spans_with_sync_and_assert(self, size=0, retry=20): + # testing instrumentation with grpcio < 1.14.0 presents a problem for + # checking spans written to the dummy tracer + # see https://github.com/grpc/grpc/issues/14621 + + spans = super(GrpcTestCase, self).get_spans() + + if _GRPC_VERSION >= (1, 14): + assert len(spans) == size + return spans + + for _ in range(retry): + if len(spans) == size: + assert len(spans) == size + return spans + time.sleep(0.1) + + return spans + + def _start_server(self): + self._server = grpc.server(logging_pool.pool(2)) + self._server.add_insecure_port('[::]:%d' % (_GRPC_PORT)) + add_HelloServicer_to_server(_HelloServicer(), self._server) + self._server.start() + + def _stop_server(self): + self._server.stop(0) + + def _check_client_span(self, span, service, method_name, method_kind): + assert span.name == 'grpc' + assert span.resource == '/helloworld.Hello/{}'.format(method_name) + assert span.service == service + assert span.error == 0 + assert span.span_type == 'grpc' + assert span.get_tag('grpc.method.path') == '/helloworld.Hello/{}'.format(method_name) + assert span.get_tag('grpc.method.package') == 'helloworld' + assert span.get_tag('grpc.method.service') == 'Hello' + assert span.get_tag('grpc.method.name') == method_name + assert span.get_tag('grpc.method.kind') == method_kind + assert span.get_tag('grpc.status.code') == 'StatusCode.OK' + assert span.get_tag('grpc.host') == 'localhost' + assert span.get_tag('grpc.port') == '50531' + + def _check_server_span(self, span, service, method_name, method_kind): + assert span.name == 'grpc' + assert span.resource == '/helloworld.Hello/{}'.format(method_name) + assert span.service == service + assert span.error == 0 + assert span.span_type == 'grpc' + assert span.get_tag('grpc.method.path') == '/helloworld.Hello/{}'.format(method_name) + assert span.get_tag('grpc.method.package') == 'helloworld' + assert span.get_tag('grpc.method.service') == 'Hello' + assert span.get_tag('grpc.method.name') == method_name + assert span.get_tag('grpc.method.kind') == method_kind + + def test_insecure_channel_using_args_parameter(self): + def insecure_channel_using_args(target): + return grpc.insecure_channel(target) + self._test_insecure_channel(insecure_channel_using_args) + + def test_insecure_channel_using_kwargs_parameter(self): + def insecure_channel_using_kwargs(target): + return grpc.insecure_channel(target=target) + self._test_insecure_channel(insecure_channel_using_kwargs) + + def _test_insecure_channel(self, insecure_channel_function): + target = 'localhost:%d' % (_GRPC_PORT) + with insecure_channel_function(target) as channel: + stub = HelloStub(channel) + stub.SayHello(HelloRequest(name='test')) + + spans = self.get_spans_with_sync_and_assert(size=2) + server_span, client_span = spans + + self._check_client_span(client_span, 'grpc-client', 'SayHello', 'unary') + self._check_server_span(server_span, 'grpc-server', 'SayHello', 'unary') + + def test_secure_channel_using_args_parameter(self): + def secure_channel_using_args(target, **kwargs): + return grpc.secure_channel(target, **kwargs) + self._test_secure_channel(secure_channel_using_args) + + def test_secure_channel_using_kwargs_parameter(self): + def secure_channel_using_kwargs(target, **kwargs): + return grpc.secure_channel(target=target, **kwargs) + self._test_secure_channel(secure_channel_using_kwargs) + + def _test_secure_channel(self, secure_channel_function): + target = 'localhost:%d' % (_GRPC_PORT) + with secure_channel_function(target, credentials=grpc.ChannelCredentials(None)) as channel: + stub = HelloStub(channel) + stub.SayHello(HelloRequest(name='test')) + + spans = self.get_spans_with_sync_and_assert(size=2) + server_span, client_span = spans + + self._check_client_span(client_span, 'grpc-client', 'SayHello', 'unary') + self._check_server_span(server_span, 'grpc-server', 'SayHello', 'unary') + + def test_pin_not_activated(self): + self.tracer.configure(enabled=False) + with grpc.insecure_channel('localhost:%d' % (_GRPC_PORT)) as channel: + stub = HelloStub(channel) + stub.SayHello(HelloRequest(name='test')) + + spans = self.get_spans_with_sync_and_assert() + assert len(spans) == 0 + + def test_pin_tags_are_put_in_span(self): + # DEV: stop and restart server to catch overriden pin + self._stop_server() + Pin.override(constants.GRPC_PIN_MODULE_SERVER, service='server1') + Pin.override(constants.GRPC_PIN_MODULE_SERVER, tags={'tag1': 'server'}) + Pin.override(constants.GRPC_PIN_MODULE_CLIENT, tags={'tag2': 'client'}) + self._start_server() + with grpc.insecure_channel('localhost:%d' % (_GRPC_PORT)) as channel: + stub = HelloStub(channel) + stub.SayHello(HelloRequest(name='test')) + + spans = self.get_spans_with_sync_and_assert(size=2) + assert spans[0].service == 'server1' + assert spans[0].get_tag('tag1') == 'server' + assert spans[1].get_tag('tag2') == 'client' + + def test_pin_can_be_defined_per_channel(self): + Pin.override(constants.GRPC_PIN_MODULE_CLIENT, service='grpc1') + channel1 = grpc.insecure_channel('localhost:%d' % (_GRPC_PORT)) + + Pin.override(constants.GRPC_PIN_MODULE_CLIENT, service='grpc2') + channel2 = grpc.insecure_channel('localhost:%d' % (_GRPC_PORT)) + + stub1 = HelloStub(channel1) + stub1.SayHello(HelloRequest(name='test')) + channel1.close() + + # DEV: make sure we have two spans before proceeding + spans = self.get_spans_with_sync_and_assert(size=2) + + stub2 = HelloStub(channel2) + stub2.SayHello(HelloRequest(name='test')) + channel2.close() + + spans = self.get_spans_with_sync_and_assert(size=4) + + # DEV: Server service default, client services override + self._check_server_span(spans[0], 'grpc-server', 'SayHello', 'unary') + self._check_client_span(spans[1], 'grpc1', 'SayHello', 'unary') + self._check_server_span(spans[2], 'grpc-server', 'SayHello', 'unary') + self._check_client_span(spans[3], 'grpc2', 'SayHello', 'unary') + + def test_analytics_default(self): + with grpc.secure_channel('localhost:%d' % (_GRPC_PORT), credentials=grpc.ChannelCredentials(None)) as channel: + stub = HelloStub(channel) + stub.SayHello(HelloRequest(name='test')) + + spans = self.get_spans_with_sync_and_assert(size=2) + assert spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY) is None + assert spans[1].get_metric(ANALYTICS_SAMPLE_RATE_KEY) is None + + def test_analytics_with_rate(self): + with self.override_config( + 'grpc_server', + dict(analytics_enabled=True, analytics_sample_rate=0.75) + ): + with self.override_config( + 'grpc', + dict(analytics_enabled=True, analytics_sample_rate=0.5) + ): + with grpc.secure_channel( + 'localhost:%d' % (_GRPC_PORT), + credentials=grpc.ChannelCredentials(None) + ) as channel: + stub = HelloStub(channel) + stub.SayHello(HelloRequest(name='test')) + + spans = self.get_spans_with_sync_and_assert(size=2) + assert spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY) == 0.75 + assert spans[1].get_metric(ANALYTICS_SAMPLE_RATE_KEY) == 0.5 + + def test_analytics_without_rate(self): + with self.override_config( + 'grpc_server', + dict(analytics_enabled=True) + ): + with self.override_config( + 'grpc', + dict(analytics_enabled=True) + ): + with grpc.secure_channel( + 'localhost:%d' % (_GRPC_PORT), + credentials=grpc.ChannelCredentials(None) + ) as channel: + stub = HelloStub(channel) + stub.SayHello(HelloRequest(name='test')) + + spans = self.get_spans_with_sync_and_assert(size=2) + assert spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY) == 1.0 + assert spans[1].get_metric(ANALYTICS_SAMPLE_RATE_KEY) == 1.0 + + def test_server_stream(self): + with grpc.insecure_channel('localhost:%d' % (_GRPC_PORT)) as channel: + stub = HelloStub(channel) + responses_iterator = stub.SayHelloTwice(HelloRequest(name='test')) + assert len(list(responses_iterator)) == 2 + + spans = self.get_spans_with_sync_and_assert(size=2) + server_span, client_span = spans + self._check_client_span(client_span, 'grpc-client', 'SayHelloTwice', 'server_streaming') + self._check_server_span(server_span, 'grpc-server', 'SayHelloTwice', 'server_streaming') + + def test_client_stream(self): + requests_iterator = iter( + HelloRequest(name=name) for name in + ['first', 'second'] + ) + + with grpc.insecure_channel('localhost:%d' % (_GRPC_PORT)) as channel: + stub = HelloStub(channel) + response = stub.SayHelloLast(requests_iterator) + assert response.message == 'first;second' + + spans = self.get_spans_with_sync_and_assert(size=2) + server_span, client_span = spans + self._check_client_span(client_span, 'grpc-client', 'SayHelloLast', 'client_streaming') + self._check_server_span(server_span, 'grpc-server', 'SayHelloLast', 'client_streaming') + + def test_bidi_stream(self): + requests_iterator = iter( + HelloRequest(name=name) for name in + ['first', 'second', 'third', 'fourth', 'fifth'] + ) + + with grpc.insecure_channel('localhost:%d' % (_GRPC_PORT)) as channel: + stub = HelloStub(channel) + responses = stub.SayHelloRepeatedly(requests_iterator) + messages = [r.message for r in responses] + assert list(messages) == ['first;second', 'third;fourth', 'fifth'] + + spans = self.get_spans_with_sync_and_assert(size=2) + server_span, client_span = spans + self._check_client_span(client_span, 'grpc-client', 'SayHelloRepeatedly', 'bidi_streaming') + self._check_server_span(server_span, 'grpc-server', 'SayHelloRepeatedly', 'bidi_streaming') + + def test_priority_sampling(self): + # DEV: Priority sampling is enabled by default + # Setting priority sampling reset the writer, we need to re-override it + + with grpc.insecure_channel('localhost:%d' % (_GRPC_PORT)) as channel: + stub = HelloStub(channel) + response = stub.SayHello(HelloRequest(name='propogator')) + + spans = self.get_spans_with_sync_and_assert(size=2) + server_span, client_span = spans + + assert 'x-datadog-trace-id={}'.format(client_span.trace_id) in response.message + assert 'x-datadog-parent-id={}'.format(client_span.span_id) in response.message + assert 'x-datadog-sampling-priority=1' in response.message + + def test_unary_abort(self): + with grpc.secure_channel('localhost:%d' % (_GRPC_PORT), credentials=grpc.ChannelCredentials(None)) as channel: + stub = HelloStub(channel) + with self.assertRaises(grpc.RpcError): + stub.SayHello(HelloRequest(name='abort')) + + spans = self.get_spans_with_sync_and_assert(size=2) + server_span, client_span = spans + + assert client_span.resource == '/helloworld.Hello/SayHello' + assert client_span.error == 1 + assert client_span.get_tag(errors.ERROR_MSG) == 'aborted' + assert client_span.get_tag(errors.ERROR_TYPE) == 'StatusCode.ABORTED' + assert client_span.get_tag('grpc.status.code') == 'StatusCode.ABORTED' + + def test_custom_interceptor_exception(self): + # add an interceptor that raises a custom exception and check error tags + # are added to spans + raise_exception_interceptor = _RaiseExceptionClientInterceptor() + with grpc.insecure_channel('localhost:%d' % (_GRPC_PORT)) as channel: + with self.assertRaises(_CustomException): + intercept_channel = grpc.intercept_channel( + channel, + raise_exception_interceptor + ) + stub = HelloStub(intercept_channel) + stub.SayHello(HelloRequest(name='custom-exception')) + + spans = self.get_spans_with_sync_and_assert(size=2) + server_span, client_span = spans + + assert client_span.resource == '/helloworld.Hello/SayHello' + assert client_span.error == 1 + assert client_span.get_tag(errors.ERROR_MSG) == 'custom' + assert client_span.get_tag(errors.ERROR_TYPE) == 'tests.contrib.grpc.test_grpc._CustomException' + assert client_span.get_tag(errors.ERROR_STACK) is not None + assert client_span.get_tag('grpc.status.code') == 'StatusCode.INTERNAL' + + # no exception on server end + assert server_span.resource == '/helloworld.Hello/SayHello' + assert server_span.error == 0 + assert server_span.get_tag(errors.ERROR_MSG) is None + assert server_span.get_tag(errors.ERROR_TYPE) is None + assert server_span.get_tag(errors.ERROR_STACK) is None + + def test_client_cancellation(self): + # unpatch and restart server since we are only testing here caller cancellation + self._stop_server() + _unpatch_server() + self._start_server() + + # have servicer sleep whenever request is handled to ensure we can cancel before server responds + # to requests + requests_iterator = iter( + HelloRequest(name=name) for name in + ['sleep'] + ) + + with grpc.insecure_channel('localhost:%d' % (_GRPC_PORT)) as channel: + with self.assertRaises(grpc.RpcError): + stub = HelloStub(channel) + responses = stub.SayHelloRepeatedly(requests_iterator) + responses.cancel() + next(responses) + + spans = self.get_spans_with_sync_and_assert(size=1) + client_span = spans[0] + + assert client_span.resource == '/helloworld.Hello/SayHelloRepeatedly' + assert client_span.error == 1 + assert client_span.get_tag(errors.ERROR_MSG) == 'Locally cancelled by application!' + assert client_span.get_tag(errors.ERROR_TYPE) == 'StatusCode.CANCELLED' + assert client_span.get_tag(errors.ERROR_STACK) is None + assert client_span.get_tag('grpc.status.code') == 'StatusCode.CANCELLED' + + def test_unary_exception(self): + with grpc.secure_channel('localhost:%d' % (_GRPC_PORT), credentials=grpc.ChannelCredentials(None)) as channel: + stub = HelloStub(channel) + with self.assertRaises(grpc.RpcError): + stub.SayHello(HelloRequest(name='exception')) + + spans = self.get_spans_with_sync_and_assert(size=2) + server_span, client_span = spans + + assert client_span.resource == '/helloworld.Hello/SayHello' + assert client_span.error == 1 + assert client_span.get_tag(errors.ERROR_MSG) == 'exception' + assert client_span.get_tag(errors.ERROR_TYPE) == 'StatusCode.INVALID_ARGUMENT' + assert client_span.get_tag('grpc.status.code') == 'StatusCode.INVALID_ARGUMENT' + + assert server_span.resource == '/helloworld.Hello/SayHello' + assert server_span.error == 1 + assert server_span.get_tag(errors.ERROR_MSG) == 'exception' + assert server_span.get_tag(errors.ERROR_TYPE) == 'StatusCode.INVALID_ARGUMENT' + assert 'Traceback' in server_span.get_tag(errors.ERROR_STACK) + assert 'grpc.StatusCode.INVALID_ARGUMENT' in server_span.get_tag(errors.ERROR_STACK) + + def test_client_stream_exception(self): + requests_iterator = iter( + HelloRequest(name=name) for name in + ['first', 'exception'] + ) + + with grpc.insecure_channel('localhost:%d' % (_GRPC_PORT)) as channel: + stub = HelloStub(channel) + with self.assertRaises(grpc.RpcError): + stub.SayHelloLast(requests_iterator) + + spans = self.get_spans_with_sync_and_assert(size=2) + server_span, client_span = spans + + assert client_span.resource == '/helloworld.Hello/SayHelloLast' + assert client_span.error == 1 + assert client_span.get_tag(errors.ERROR_MSG) == 'exception' + assert client_span.get_tag(errors.ERROR_TYPE) == 'StatusCode.INVALID_ARGUMENT' + assert client_span.get_tag('grpc.status.code') == 'StatusCode.INVALID_ARGUMENT' + + assert server_span.resource == '/helloworld.Hello/SayHelloLast' + assert server_span.error == 1 + assert server_span.get_tag(errors.ERROR_MSG) == 'exception' + assert server_span.get_tag(errors.ERROR_TYPE) == 'StatusCode.INVALID_ARGUMENT' + assert 'Traceback' in server_span.get_tag(errors.ERROR_STACK) + assert 'grpc.StatusCode.INVALID_ARGUMENT' in server_span.get_tag(errors.ERROR_STACK) + + def test_server_stream_exception(self): + with grpc.secure_channel('localhost:%d' % (_GRPC_PORT), credentials=grpc.ChannelCredentials(None)) as channel: + stub = HelloStub(channel) + with self.assertRaises(grpc.RpcError): + list(stub.SayHelloTwice(HelloRequest(name='exception'))) + + spans = self.get_spans_with_sync_and_assert(size=2) + server_span, client_span = spans + + assert client_span.resource == '/helloworld.Hello/SayHelloTwice' + assert client_span.error == 1 + assert client_span.get_tag(errors.ERROR_MSG) == 'exception' + assert client_span.get_tag(errors.ERROR_TYPE) == 'StatusCode.RESOURCE_EXHAUSTED' + assert client_span.get_tag('grpc.status.code') == 'StatusCode.RESOURCE_EXHAUSTED' + + assert server_span.resource == '/helloworld.Hello/SayHelloTwice' + assert server_span.error == 1 + assert server_span.get_tag(errors.ERROR_MSG) == 'exception' + assert server_span.get_tag(errors.ERROR_TYPE) == 'StatusCode.RESOURCE_EXHAUSTED' + assert 'Traceback' in server_span.get_tag(errors.ERROR_STACK) + assert 'grpc.StatusCode.RESOURCE_EXHAUSTED' in server_span.get_tag(errors.ERROR_STACK) + + +class _HelloServicer(HelloServicer): + def SayHello(self, request, context): + if request.name == 'propogator': + metadata = context.invocation_metadata() + context.set_code(grpc.StatusCode.OK) + message = ';'.join( + w.key + '=' + w.value + for w in metadata + if w.key.startswith('x-datadog') + ) + return HelloReply(message=message) + + if request.name == 'abort': + context.abort(grpc.StatusCode.ABORTED, 'aborted') + + if request.name == 'exception': + context.abort(grpc.StatusCode.INVALID_ARGUMENT, 'exception') + + return HelloReply(message='Hello {}'.format(request.name)) + + def SayHelloTwice(self, request, context): + yield HelloReply(message='first response') + + if request.name == 'exception': + context.abort(grpc.StatusCode.RESOURCE_EXHAUSTED, 'exception') + + yield HelloReply(message='secondresponse') + + def SayHelloLast(self, request_iterator, context): + names = [r.name for r in list(request_iterator)] + + if 'exception' in names: + context.abort(grpc.StatusCode.INVALID_ARGUMENT, 'exception') + + return HelloReply(message='{}'.format( + ';'.join(names))) + + def SayHelloRepeatedly(self, request_iterator, context): + last_request = None + for request in request_iterator: + if last_request is not None: + yield HelloReply(message='{}'.format( + ';'.join([last_request.name, request.name]) + )) + last_request = None + else: + last_request = request + + # response for dangling request + if last_request is not None: + yield HelloReply(message='{}'.format(last_request.name)) + + +class _CustomException(Exception): + pass + + +class _RaiseExceptionClientInterceptor(grpc.UnaryUnaryClientInterceptor): + def _intercept_call(self, continuation, client_call_details, + request_or_iterator): + # allow computation to complete + continuation(client_call_details, request_or_iterator).result() + + raise _CustomException('custom') + + def intercept_unary_unary(self, continuation, client_call_details, request): + return self._intercept_call(continuation, client_call_details, request) diff --git a/tests/contrib/grpc/test_grpc_utils.py b/tests/contrib/grpc/test_grpc_utils.py new file mode 100644 index 0000000000..5cd078889c --- /dev/null +++ b/tests/contrib/grpc/test_grpc_utils.py @@ -0,0 +1,13 @@ +from ddtrace.contrib.grpc.utils import parse_method_path + + +def test_parse_method_path_with_package(): + method_path = '/package.service/method' + parsed = parse_method_path(method_path) + assert parsed == ('package', 'service', 'method') + + +def test_parse_method_path_without_package(): + method_path = '/service/method' + parsed = parse_method_path(method_path) + assert parsed == (None, 'service', 'method') diff --git a/tests/contrib/httplib/__init__.py b/tests/contrib/httplib/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/httplib/test_httplib.py b/tests/contrib/httplib/test_httplib.py new file mode 100644 index 0000000000..9f0037c27e --- /dev/null +++ b/tests/contrib/httplib/test_httplib.py @@ -0,0 +1,584 @@ +# Standard library +import contextlib +import sys + +# Third party +from ddtrace.vendor import wrapt + +# Project +from ddtrace import config +from ddtrace.compat import httplib, PY2 +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.contrib.httplib import patch, unpatch +from ddtrace.contrib.httplib.patch import should_skip_request +from ddtrace.ext import http +from ddtrace.pin import Pin + +from tests.opentracer.utils import init_tracer + +from ...base import BaseTracerTestCase +from ...util import override_global_tracer +from ...utils import assert_span_http_status_code + +if PY2: + from urllib2 import urlopen, build_opener, Request +else: + from urllib.request import urlopen, build_opener, Request + + +# socket name comes from https://english.stackexchange.com/a/44048 +SOCKET = 'httpbin.org' +URL_200 = 'http://{}/status/200'.format(SOCKET) +URL_500 = 'http://{}/status/500'.format(SOCKET) +URL_404 = 'http://{}/status/404'.format(SOCKET) + + +# Base test mixin for shared tests between Py2 and Py3 +class HTTPLibBaseMixin(object): + SPAN_NAME = 'httplib.request' if PY2 else 'http.client.request' + + def to_str(self, value): + return value.decode('utf-8') + + def setUp(self): + super(HTTPLibBaseMixin, self).setUp() + + patch() + Pin.override(httplib, tracer=self.tracer) + + def tearDown(self): + unpatch() + + super(HTTPLibBaseMixin, self).tearDown() + + +# Main test cases for httplib/http.client and urllib2/urllib.request +class HTTPLibTestCase(HTTPLibBaseMixin, BaseTracerTestCase): + SPAN_NAME = 'httplib.request' if PY2 else 'http.client.request' + + def to_str(self, value): + """Helper method to decode a string or byte object to a string""" + return value.decode('utf-8') + + def get_http_connection(self, *args, **kwargs): + conn = httplib.HTTPConnection(*args, **kwargs) + Pin.override(conn, tracer=self.tracer) + return conn + + def get_https_connection(self, *args, **kwargs): + conn = httplib.HTTPSConnection(*args, **kwargs) + Pin.override(conn, tracer=self.tracer) + return conn + + def test_patch(self): + """ + When patching httplib + we patch the correct module/methods + """ + self.assertIsInstance(httplib.HTTPConnection.__init__, wrapt.BoundFunctionWrapper) + self.assertIsInstance(httplib.HTTPConnection.putrequest, wrapt.BoundFunctionWrapper) + self.assertIsInstance(httplib.HTTPConnection.getresponse, wrapt.BoundFunctionWrapper) + + def test_unpatch(self): + """ + When unpatching httplib + we restore the correct module/methods + """ + original_init = httplib.HTTPConnection.__init__.__wrapped__ + original_putrequest = httplib.HTTPConnection.putrequest.__wrapped__ + original_getresponse = httplib.HTTPConnection.getresponse.__wrapped__ + unpatch() + + self.assertEqual(httplib.HTTPConnection.__init__, original_init) + self.assertEqual(httplib.HTTPConnection.putrequest, original_putrequest) + self.assertEqual(httplib.HTTPConnection.getresponse, original_getresponse) + + def test_should_skip_request(self): + """ + When calling should_skip_request + with an enabled Pin and non-internal request + returns False + with a disabled Pin and non-internal request + returns True + with an enabled Pin and internal request + returns True + with a disabled Pin and internal request + returns True + """ + # Enabled Pin and non-internal request + self.tracer.enabled = True + request = self.get_http_connection(SOCKET) + pin = Pin.get_from(request) + self.assertFalse(should_skip_request(pin, request)) + + # Disabled Pin and non-internal request + self.tracer.enabled = False + request = self.get_http_connection(SOCKET) + pin = Pin.get_from(request) + self.assertTrue(should_skip_request(pin, request)) + + # Enabled Pin and internal request + self.tracer.enabled = True + request = self.get_http_connection(self.tracer.writer.api.hostname, self.tracer.writer.api.port) + pin = Pin.get_from(request) + self.assertTrue(should_skip_request(pin, request)) + + # Disabled Pin and internal request + self.tracer.enabled = False + request = self.get_http_connection(self.tracer.writer.api.hostname, self.tracer.writer.api.port) + pin = Pin.get_from(request) + self.assertTrue(should_skip_request(pin, request)) + + def test_httplib_request_get_request(self, query_string=''): + """ + When making a GET request via httplib.HTTPConnection.request + we return the original response + we capture a span for the request + """ + if query_string: + fqs = '?' + query_string + else: + fqs = '' + conn = self.get_http_connection(SOCKET) + with contextlib.closing(conn): + conn.request('GET', '/status/200' + fqs) + resp = conn.getresponse() + self.assertEqual(self.to_str(resp.read()), '') + self.assertEqual(resp.status, 200) + + spans = self.tracer.writer.pop() + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.span_type, 'http') + self.assertIsNone(span.service) + self.assertEqual(span.name, self.SPAN_NAME) + self.assertEqual(span.error, 0) + assert span.get_tag('http.method') == 'GET' + assert span.get_tag('http.url') == URL_200 + assert_span_http_status_code(span, 200) + if config.httplib.trace_query_string: + assert span.get_tag(http.QUERY_STRING) == query_string + else: + assert http.QUERY_STRING not in span.meta + + def test_httplib_request_get_request_qs(self): + with self.override_http_config('httplib', dict(trace_query_string=True)): + return self.test_httplib_request_get_request('foo=bar') + + def test_httplib_request_get_request_multiqs(self): + with self.override_http_config('httplib', dict(trace_query_string=True)): + return self.test_httplib_request_get_request('foo=bar&foo=baz&x=y') + + def test_httplib_request_get_request_https(self): + """ + When making a GET request via httplib.HTTPConnection.request + when making an HTTPS connection + we return the original response + we capture a span for the request + """ + conn = self.get_https_connection('httpbin.org') + with contextlib.closing(conn): + conn.request('GET', '/status/200') + resp = conn.getresponse() + self.assertEqual(self.to_str(resp.read()), '') + self.assertEqual(resp.status, 200) + + spans = self.tracer.writer.pop() + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.span_type, 'http') + self.assertIsNone(span.service) + self.assertEqual(span.name, self.SPAN_NAME) + self.assertEqual(span.error, 0) + assert span.get_tag('http.method') == 'GET' + assert_span_http_status_code(span, 200) + assert span.get_tag('http.url') == 'https://httpbin.org/status/200' + + def test_httplib_request_post_request(self): + """ + When making a POST request via httplib.HTTPConnection.request + we return the original response + we capture a span for the request + """ + conn = self.get_http_connection(SOCKET) + with contextlib.closing(conn): + conn.request('POST', '/status/200', body='key=value') + resp = conn.getresponse() + self.assertEqual(self.to_str(resp.read()), '') + self.assertEqual(resp.status, 200) + + spans = self.tracer.writer.pop() + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.span_type, 'http') + self.assertIsNone(span.service) + self.assertEqual(span.name, self.SPAN_NAME) + self.assertEqual(span.error, 0) + assert span.get_tag('http.method') == 'POST' + assert_span_http_status_code(span, 200) + assert span.get_tag('http.url') == URL_200 + + def test_httplib_request_get_request_query_string(self): + """ + When making a GET request with a query string via httplib.HTTPConnection.request + we capture the all of the url in the span except for the query string + """ + conn = self.get_http_connection(SOCKET) + with contextlib.closing(conn): + conn.request('GET', '/status/200?key=value&key2=value2') + resp = conn.getresponse() + self.assertEqual(self.to_str(resp.read()), '') + self.assertEqual(resp.status, 200) + + spans = self.tracer.writer.pop() + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.span_type, 'http') + self.assertIsNone(span.service) + self.assertEqual(span.name, self.SPAN_NAME) + self.assertEqual(span.error, 0) + assert span.get_tag('http.method') == 'GET' + assert_span_http_status_code(span, 200) + assert span.get_tag('http.url') == URL_200 + + def test_httplib_request_500_request(self): + """ + When making a GET request via httplib.HTTPConnection.request + when the response is a 500 + we raise the original exception + we mark the span as an error + we capture the correct span tags + """ + try: + conn = self.get_http_connection(SOCKET) + with contextlib.closing(conn): + conn.request('GET', '/status/500') + conn.getresponse() + except httplib.HTTPException: + resp = sys.exc_info()[1] + self.assertEqual(self.to_str(resp.read()), '500 Internal Server Error') + self.assertEqual(resp.status, 500) + + spans = self.tracer.writer.pop() + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.span_type, 'http') + self.assertIsNone(span.service) + self.assertEqual(span.name, self.SPAN_NAME) + self.assertEqual(span.error, 1) + self.assertEqual(span.get_tag('http.method'), 'GET') + assert_span_http_status_code(span, 500) + self.assertEqual(span.get_tag('http.url'), URL_500) + + def test_httplib_request_non_200_request(self): + """ + When making a GET request via httplib.HTTPConnection.request + when the response is a non-200 + we raise the original exception + we mark the span as an error + we capture the correct span tags + """ + try: + conn = self.get_http_connection(SOCKET) + with contextlib.closing(conn): + conn.request('GET', '/status/404') + conn.getresponse() + except httplib.HTTPException: + resp = sys.exc_info()[1] + self.assertEqual(self.to_str(resp.read()), '404 Not Found') + self.assertEqual(resp.status, 404) + + spans = self.tracer.writer.pop() + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.span_type, 'http') + self.assertIsNone(span.service) + self.assertEqual(span.name, self.SPAN_NAME) + self.assertEqual(span.error, 0) + self.assertEqual(span.get_tag('http.method'), 'GET') + assert_span_http_status_code(span, 404) + self.assertEqual(span.get_tag('http.url'), URL_404) + + def test_httplib_request_get_request_disabled(self): + """ + When making a GET request via httplib.HTTPConnection.request + when the tracer is disabled + we do not capture any spans + """ + self.tracer.enabled = False + conn = self.get_http_connection(SOCKET) + with contextlib.closing(conn): + conn.request('GET', '/status/200') + resp = conn.getresponse() + self.assertEqual(self.to_str(resp.read()), '') + self.assertEqual(resp.status, 200) + + spans = self.tracer.writer.pop() + self.assertEqual(len(spans), 0) + + def test_httplib_request_get_request_disabled_and_enabled(self): + """ + When making a GET request via httplib.HTTPConnection.request + when the tracer is disabled + we do not capture any spans + """ + self.tracer.enabled = False + conn = self.get_http_connection(SOCKET) + with contextlib.closing(conn): + conn.request('GET', '/status/200') + self.tracer.enabled = True + resp = conn.getresponse() + self.assertEqual(self.to_str(resp.read()), '') + self.assertEqual(resp.status, 200) + + spans = self.tracer.writer.pop() + self.assertEqual(len(spans), 0) + + def test_httplib_request_and_response_headers(self): + + # Disabled when not configured + conn = self.get_http_connection(SOCKET) + with contextlib.closing(conn): + conn.request('GET', '/status/200', headers={'my-header': 'my_value'}) + conn.getresponse() + spans = self.tracer.writer.pop() + s = spans[0] + self.assertEqual(s.get_tag('http.request.headers.my_header'), None) + self.assertEqual(s.get_tag('http.response.headers.access_control_allow_origin'), None) + + # Enabled when configured + with self.override_config('hhtplib', {}): + from ddtrace.settings import IntegrationConfig + integration_config = config.httplib # type: IntegrationConfig + integration_config.http.trace_headers(['my-header', 'access-control-allow-origin']) + conn = self.get_http_connection(SOCKET) + with contextlib.closing(conn): + conn.request('GET', '/status/200', headers={'my-header': 'my_value'}) + conn.getresponse() + spans = self.tracer.writer.pop() + s = spans[0] + self.assertEqual(s.get_tag('http.request.headers.my-header'), 'my_value') + self.assertEqual(s.get_tag('http.response.headers.access-control-allow-origin'), '*') + + def test_urllib_request(self): + """ + When making a request via urllib.request.urlopen + we return the original response + we capture a span for the request + """ + with override_global_tracer(self.tracer): + resp = urlopen(URL_200) + + self.assertEqual(self.to_str(resp.read()), '') + self.assertEqual(resp.getcode(), 200) + + spans = self.tracer.writer.pop() + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.span_type, 'http') + self.assertIsNone(span.service) + self.assertEqual(span.name, self.SPAN_NAME) + self.assertEqual(span.error, 0) + self.assertEqual(span.get_tag('http.method'), 'GET') + assert_span_http_status_code(span, 200) + self.assertEqual(span.get_tag('http.url'), URL_200) + + def test_urllib_request_https(self): + """ + When making a request via urllib.request.urlopen + when making an HTTPS connection + we return the original response + we capture a span for the request + """ + with override_global_tracer(self.tracer): + resp = urlopen('https://httpbin.org/status/200') + + self.assertEqual(self.to_str(resp.read()), '') + self.assertEqual(resp.getcode(), 200) + + spans = self.tracer.writer.pop() + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.span_type, 'http') + self.assertIsNone(span.service) + self.assertEqual(span.name, self.SPAN_NAME) + self.assertEqual(span.error, 0) + self.assertEqual(span.get_tag('http.method'), 'GET') + assert_span_http_status_code(span, 200) + self.assertEqual(span.get_tag('http.url'), 'https://httpbin.org/status/200') + + def test_urllib_request_object(self): + """ + When making a request via urllib.request.urlopen + with a urllib.request.Request object + we return the original response + we capture a span for the request + """ + req = Request(URL_200) + with override_global_tracer(self.tracer): + resp = urlopen(req) + + self.assertEqual(self.to_str(resp.read()), '') + self.assertEqual(resp.getcode(), 200) + + spans = self.tracer.writer.pop() + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.span_type, 'http') + self.assertIsNone(span.service) + self.assertEqual(span.name, self.SPAN_NAME) + self.assertEqual(span.error, 0) + self.assertEqual(span.get_tag('http.method'), 'GET') + assert_span_http_status_code(span, 200) + self.assertEqual(span.get_tag('http.url'), URL_200) + + def test_urllib_request_opener(self): + """ + When making a request via urllib.request.OpenerDirector + we return the original response + we capture a span for the request + """ + opener = build_opener() + with override_global_tracer(self.tracer): + resp = opener.open(URL_200) + + self.assertEqual(self.to_str(resp.read()), '') + self.assertEqual(resp.getcode(), 200) + + spans = self.tracer.writer.pop() + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.span_type, 'http') + self.assertIsNone(span.service) + self.assertEqual(span.name, self.SPAN_NAME) + self.assertEqual(span.error, 0) + self.assertEqual(span.get_tag('http.method'), 'GET') + assert_span_http_status_code(span, 200) + self.assertEqual(span.get_tag('http.url'), URL_200) + + def test_httplib_request_get_request_ot(self): + """ OpenTracing version of test with same name. """ + ot_tracer = init_tracer('my_svc', self.tracer) + + with ot_tracer.start_active_span('ot_span'): + conn = self.get_http_connection(SOCKET) + with contextlib.closing(conn): + conn.request('GET', '/status/200') + resp = conn.getresponse() + self.assertEqual(self.to_str(resp.read()), '') + self.assertEqual(resp.status, 200) + + spans = self.tracer.writer.pop() + self.assertEqual(len(spans), 2) + ot_span, dd_span = spans + + # confirm the parenting + self.assertEqual(ot_span.parent_id, None) + self.assertEqual(dd_span.parent_id, ot_span.span_id) + + self.assertEqual(ot_span.service, 'my_svc') + self.assertEqual(ot_span.name, 'ot_span') + + self.assertEqual(dd_span.span_type, 'http') + self.assertEqual(dd_span.name, self.SPAN_NAME) + self.assertEqual(dd_span.error, 0) + assert dd_span.get_tag('http.method') == 'GET' + assert_span_http_status_code(dd_span, 200) + assert dd_span.get_tag('http.url') == URL_200 + + def test_analytics_default(self): + conn = self.get_http_connection(SOCKET) + with contextlib.closing(conn): + conn.request('GET', '/status/200') + resp = conn.getresponse() + self.assertEqual(self.to_str(resp.read()), '') + self.assertEqual(resp.status, 200) + + spans = self.get_spans() + self.assertEqual(len(spans), 1) + self.assertIsNone(spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + def test_analytics_with_rate(self): + with self.override_config( + 'httplib', + dict(analytics_enabled=True, analytics_sample_rate=0.5) + ): + conn = self.get_http_connection(SOCKET) + with contextlib.closing(conn): + conn.request('GET', '/status/200') + resp = conn.getresponse() + self.assertEqual(self.to_str(resp.read()), '') + self.assertEqual(resp.status, 200) + + spans = self.get_spans() + self.assertEqual(len(spans), 1) + self.assertEqual(spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY), 0.5) + + def test_analytics_without_rate(self): + with self.override_config( + 'httplib', + dict(analytics_enabled=True) + ): + conn = self.get_http_connection(SOCKET) + with contextlib.closing(conn): + conn.request('GET', '/status/200') + resp = conn.getresponse() + self.assertEqual(self.to_str(resp.read()), '') + self.assertEqual(resp.status, 200) + + spans = self.get_spans() + self.assertEqual(len(spans), 1) + self.assertEqual(spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY), 1.0) + + +# Additional Python2 test cases for urllib +if PY2: + import urllib + + class HTTPLibPython2Test(HTTPLibBaseMixin, BaseTracerTestCase): + def test_urllib_request(self): + """ + When making a request via urllib.urlopen + we return the original response + we capture a span for the request + """ + with override_global_tracer(self.tracer): + resp = urllib.urlopen(URL_200) + + self.assertEqual(resp.read(), '') + self.assertEqual(resp.getcode(), 200) + + spans = self.tracer.writer.pop() + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.span_type, 'http') + self.assertIsNone(span.service) + self.assertEqual(span.name, 'httplib.request') + self.assertEqual(span.error, 0) + self.assertEqual(span.get_tag('http.method'), 'GET') + assert_span_http_status_code(span, 200) + self.assertEqual(span.get_tag('http.url'), URL_200) + + def test_urllib_request_https(self): + """ + When making a request via urllib.urlopen + when making an HTTPS connection + we return the original response + we capture a span for the request + """ + with override_global_tracer(self.tracer): + resp = urllib.urlopen('https://httpbin.org/status/200') + + self.assertEqual(resp.read(), '') + self.assertEqual(resp.getcode(), 200) + + spans = self.tracer.writer.pop() + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.span_type, 'http') + self.assertIsNone(span.service) + self.assertEqual(span.name, 'httplib.request') + self.assertEqual(span.error, 0) + self.assertEqual(span.get_tag('http.method'), 'GET') + assert_span_http_status_code(span, 200) + self.assertEqual(span.get_tag('http.url'), 'https://httpbin.org/status/200') diff --git a/tests/contrib/jinja2/templates/base.html b/tests/contrib/jinja2/templates/base.html new file mode 100644 index 0000000000..05490d0c02 --- /dev/null +++ b/tests/contrib/jinja2/templates/base.html @@ -0,0 +1 @@ +Message: {% block content %}{% endblock %} diff --git a/tests/contrib/jinja2/templates/template.html b/tests/contrib/jinja2/templates/template.html new file mode 100644 index 0000000000..ab28182415 --- /dev/null +++ b/tests/contrib/jinja2/templates/template.html @@ -0,0 +1,2 @@ +{% extends 'base.html' %} +{% block content %}Hello {{name}}!{% endblock %} diff --git a/tests/contrib/jinja2/test_jinja2.py b/tests/contrib/jinja2/test_jinja2.py new file mode 100644 index 0000000000..f7d1d0eea6 --- /dev/null +++ b/tests/contrib/jinja2/test_jinja2.py @@ -0,0 +1,120 @@ +import os.path +import unittest + +# 3rd party +import jinja2 + +from ddtrace import Pin, config +from ddtrace.contrib.jinja2 import patch, unpatch +from tests.test_tracer import get_dummy_tracer + +TEST_DIR = os.path.dirname(os.path.realpath(__file__)) +TMPL_DIR = os.path.join(TEST_DIR, 'templates') + + +class Jinja2Test(unittest.TestCase): + def setUp(self): + patch() + # prevent cache effects when using Template('code...') + jinja2.environment._spontaneous_environments.clear() + # provide a dummy tracer + self.tracer = get_dummy_tracer() + Pin.override(jinja2.environment.Environment, tracer=self.tracer) + + def tearDown(self): + # restore the tracer + unpatch() + + def test_render_inline_template(self): + t = jinja2.environment.Template('Hello {{name}}!') + assert t.render(name='Jinja') == 'Hello Jinja!' + + # tests + spans = self.tracer.writer.pop() + assert len(spans) == 2 + + for span in spans: + assert span.service is None + assert span.span_type == 'template' + assert span.get_tag('jinja2.template_name') == '' + + assert spans[0].name == 'jinja2.compile' + assert spans[1].name == 'jinja2.render' + + def test_generate_inline_template(self): + t = jinja2.environment.Template('Hello {{name}}!') + assert ''.join(t.generate(name='Jinja')) == 'Hello Jinja!' + + # tests + spans = self.tracer.writer.pop() + assert len(spans) == 2 + + for span in spans: + assert span.service is None + assert span.span_type == 'template' + assert span.get_tag('jinja2.template_name') == '' + + assert spans[0].name == 'jinja2.compile' + assert spans[1].name == 'jinja2.render' + + def test_file_template(self): + loader = jinja2.loaders.FileSystemLoader(TMPL_DIR) + env = jinja2.Environment(loader=loader) + t = env.get_template('template.html') + assert t.render(name='Jinja') == 'Message: Hello Jinja!' + + # tests + spans = self.tracer.writer.pop() + assert len(spans) == 5 + + for span in spans: + assert span.span_type == 'template' + assert span.service is None + + # templates.html extends base.html + def get_def(s): + return s.name, s.get_tag('jinja2.template_name') + + assert get_def(spans[0]) == ('jinja2.load', 'template.html') + assert get_def(spans[1]) == ('jinja2.compile', 'template.html') + assert get_def(spans[2]) == ('jinja2.render', 'template.html') + assert get_def(spans[3]) == ('jinja2.load', 'base.html') + assert get_def(spans[4]) == ('jinja2.compile', 'base.html') + + # additionnal checks for jinja2.load + assert spans[0].get_tag('jinja2.template_path') == os.path.join(TMPL_DIR, 'template.html') + assert spans[3].get_tag('jinja2.template_path') == os.path.join(TMPL_DIR, 'base.html') + + def test_service_name(self): + # don't inherit the service name from the parent span, but force the value. + loader = jinja2.loaders.FileSystemLoader(TMPL_DIR) + env = jinja2.Environment(loader=loader) + + cfg = config.get_from(env) + cfg['service_name'] = 'renderer' + + t = env.get_template('template.html') + assert t.render(name='Jinja') == 'Message: Hello Jinja!' + + # tests + spans = self.tracer.writer.pop() + assert len(spans) == 5 + + for span in spans: + assert span.service == 'renderer' + + def test_inherit_service(self): + # When there is a parent span and no custom service_name, the service name is inherited + loader = jinja2.loaders.FileSystemLoader(TMPL_DIR) + env = jinja2.Environment(loader=loader) + + with self.tracer.trace('parent.span', service='web'): + t = env.get_template('template.html') + assert t.render(name='Jinja') == 'Message: Hello Jinja!' + + # tests + spans = self.tracer.writer.pop() + assert len(spans) == 6 + + for span in spans: + assert span.service == 'web' diff --git a/tests/contrib/kombu/__init__.py b/tests/contrib/kombu/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/kombu/test.py b/tests/contrib/kombu/test.py new file mode 100644 index 0000000000..82fd8a93ab --- /dev/null +++ b/tests/contrib/kombu/test.py @@ -0,0 +1,116 @@ +# -*- coding: utf-8 -*- +import kombu + +from ddtrace import Pin +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.contrib.kombu.patch import patch, unpatch +from ddtrace.contrib.kombu import utils +from ddtrace.ext import kombu as kombux +from ..config import RABBITMQ_CONFIG +from ...base import BaseTracerTestCase + + +class TestKombuPatch(BaseTracerTestCase): + + TEST_SERVICE = 'kombu-patch' + TEST_PORT = RABBITMQ_CONFIG['port'] + + def setUp(self): + super(TestKombuPatch, self).setUp() + + conn = kombu.Connection('amqp://guest:guest@127.0.0.1:{p}//'.format(p=self.TEST_PORT)) + conn.connect() + producer = conn.Producer() + Pin.override(producer, service=self.TEST_SERVICE, tracer=self.tracer) + + self.conn = conn + self.producer = producer + + patch() + + def tearDown(self): + unpatch() + + super(TestKombuPatch, self).tearDown() + + def test_basics(self): + self._publish_consume() + self._assert_spans() + + def test_extract_conn_tags(self): + result = utils.extract_conn_tags(self.conn) + assert result['out.host'] == '127.0.0.1' + assert result['out.port'] == str(self.TEST_PORT) + + def _publish_consume(self): + results = [] + + def process_message(body, message): + results.append(body) + message.ack() + + task_queue = kombu.Queue('tasks', kombu.Exchange('tasks'), routing_key='tasks') + to_publish = {'hello': 'world'} + self.producer.publish(to_publish, + exchange=task_queue.exchange, + routing_key=task_queue.routing_key, + declare=[task_queue]) + + with kombu.Consumer(self.conn, [task_queue], accept=['json'], callbacks=[process_message]) as consumer: + Pin.override(consumer, service='kombu-patch', tracer=self.tracer) + self.conn.drain_events(timeout=2) + + self.assertEqual(results[0], to_publish) + + def _assert_spans(self): + """Tests both producer and consumer tracing""" + spans = self.get_spans() + self.assertEqual(len(spans), 2) + consumer_span = spans[0] + self.assertEqual(consumer_span.service, self.TEST_SERVICE) + self.assertEqual(consumer_span.name, kombux.PUBLISH_NAME) + self.assertEqual(consumer_span.span_type, 'worker') + self.assertEqual(consumer_span.error, 0) + self.assertEqual(consumer_span.get_tag('out.vhost'), '/') + self.assertEqual(consumer_span.get_tag('out.host'), '127.0.0.1') + self.assertEqual(consumer_span.get_tag('kombu.exchange'), u'tasks') + self.assertEqual(consumer_span.get_metric('kombu.body_length'), 18) + self.assertEqual(consumer_span.get_tag('kombu.routing_key'), u'tasks') + self.assertEqual(consumer_span.resource, 'tasks') + + producer_span = spans[1] + self.assertEqual(producer_span.service, self.TEST_SERVICE) + self.assertEqual(producer_span.name, kombux.RECEIVE_NAME) + self.assertEqual(producer_span.span_type, 'worker') + self.assertEqual(producer_span.error, 0) + self.assertEqual(producer_span.get_tag('kombu.exchange'), u'tasks') + self.assertEqual(producer_span.get_tag('kombu.routing_key'), u'tasks') + + def test_analytics_default(self): + self._publish_consume() + + spans = self.get_spans() + self.assertEqual(len(spans), 2) + self.assertIsNone(spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + def test_analytics_with_rate(self): + with self.override_config( + 'kombu', + dict(analytics_enabled=True, analytics_sample_rate=0.5) + ): + self._publish_consume() + + spans = self.get_spans() + self.assertEqual(len(spans), 2) + self.assertEqual(spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY), 0.5) + + def test_analytics_without_rate(self): + with self.override_config( + 'kombu', + dict(analytics_enabled=True) + ): + self._publish_consume() + + spans = self.get_spans() + self.assertEqual(len(spans), 2) + self.assertEqual(spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY), 1.0) diff --git a/tests/contrib/logging/__init__.py b/tests/contrib/logging/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/logging/test_logging.py b/tests/contrib/logging/test_logging.py new file mode 100644 index 0000000000..b236b2bcef --- /dev/null +++ b/tests/contrib/logging/test_logging.py @@ -0,0 +1,95 @@ +import logging + +from ddtrace.helpers import get_correlation_ids +from ddtrace.compat import StringIO +from ddtrace.contrib.logging import patch, unpatch +from ddtrace.vendor import wrapt + +from ...base import BaseTracerTestCase + + +logger = logging.getLogger() +logger.level = logging.INFO + + +def capture_function_log(func, fmt): + # add stream handler to capture output + out = StringIO() + sh = logging.StreamHandler(out) + + try: + formatter = logging.Formatter(fmt) + sh.setFormatter(formatter) + logger.addHandler(sh) + result = func() + finally: + logger.removeHandler(sh) + + return out.getvalue().strip(), result + + +class LoggingTestCase(BaseTracerTestCase): + def setUp(self): + patch() + super(LoggingTestCase, self).setUp() + + def tearDown(self): + unpatch() + super(LoggingTestCase, self).tearDown() + + def test_patch(self): + """ + Confirm patching was successful + """ + patch() + log = logging.getLogger() + self.assertTrue(isinstance(log.makeRecord, wrapt.BoundFunctionWrapper)) + + def test_log_trace(self): + """ + Check logging patched and formatter including trace info + """ + @self.tracer.wrap() + def func(): + logger.info('Hello!') + return get_correlation_ids(tracer=self.tracer) + + with self.override_config('logging', dict(tracer=self.tracer)): + # with format string for trace info + output, result = capture_function_log( + func, + fmt='%(message)s - dd.trace_id=%(dd.trace_id)s dd.span_id=%(dd.span_id)s', + ) + self.assertEqual( + output, + 'Hello! - dd.trace_id={} dd.span_id={}'.format(*result), + ) + + # without format string + output, _ = capture_function_log( + func, + fmt='%(message)s', + ) + self.assertEqual( + output, + 'Hello!', + ) + + def test_log_no_trace(self): + """ + Check traced funclogging patched and formatter not including trace info + """ + def func(): + logger.info('Hello!') + return get_correlation_ids() + + with self.override_config('logging', dict(tracer=self.tracer)): + # with format string for trace info + output, _ = capture_function_log( + func, + fmt='%(message)s - dd.trace_id=%(dd.trace_id)s dd.span_id=%(dd.span_id)s', + ) + self.assertEqual( + output, + 'Hello! - dd.trace_id=0 dd.span_id=0', + ) diff --git a/tests/contrib/mako/templates/template.html b/tests/contrib/mako/templates/template.html new file mode 100644 index 0000000000..62d75dc53d --- /dev/null +++ b/tests/contrib/mako/templates/template.html @@ -0,0 +1 @@ +Hello ${name}! diff --git a/tests/contrib/mako/test_mako.py b/tests/contrib/mako/test_mako.py new file mode 100644 index 0000000000..b663fbcb1a --- /dev/null +++ b/tests/contrib/mako/test_mako.py @@ -0,0 +1,80 @@ +import os.path +import unittest + +# 3rd party +from mako.template import Template +from mako.lookup import TemplateLookup +from mako.runtime import Context + +from ddtrace import Pin +from ddtrace.contrib.mako import patch, unpatch +from ddtrace.compat import StringIO, to_unicode +from tests.test_tracer import get_dummy_tracer + +TEST_DIR = os.path.dirname(os.path.realpath(__file__)) +TMPL_DIR = os.path.join(TEST_DIR, 'templates') + + +class MakoTest(unittest.TestCase): + def setUp(self): + patch() + self.tracer = get_dummy_tracer() + Pin.override(Template, tracer=self.tracer) + + def tearDown(self): + unpatch() + + def test_render(self): + # render + t = Template('Hello ${name}!') + self.assertEqual(t.render(name='mako'), 'Hello mako!') + + spans = self.tracer.writer.pop() + self.assertEqual(len(spans), 1) + + self.assertEqual(spans[0].service, 'mako') + self.assertEqual(spans[0].span_type, 'template') + self.assertEqual(spans[0].get_tag('mako.template_name'), '') + self.assertEqual(spans[0].name, 'mako.template.render') + self.assertEqual(spans[0].resource, '') + + # render_unicode + t = Template('Hello ${name}!') + self.assertEqual(t.render_unicode(name='mako'), to_unicode('Hello mako!')) + spans = self.tracer.writer.pop() + self.assertEqual(len(spans), 1) + self.assertEqual(spans[0].service, 'mako') + self.assertEqual(spans[0].span_type, 'template') + self.assertEqual(spans[0].get_tag('mako.template_name'), '') + self.assertEqual(spans[0].name, 'mako.template.render_unicode') + self.assertEqual(spans[0].resource, '') + + # render_context + t = Template('Hello ${name}!') + buf = StringIO() + c = Context(buf, name='mako') + t.render_context(c) + self.assertEqual(buf.getvalue(), 'Hello mako!') + spans = self.tracer.writer.pop() + self.assertEqual(len(spans), 1) + self.assertEqual(spans[0].service, 'mako') + self.assertEqual(spans[0].span_type, 'template') + self.assertEqual(spans[0].get_tag('mako.template_name'), '') + self.assertEqual(spans[0].name, 'mako.template.render_context') + self.assertEqual(spans[0].resource, '') + + def test_file_template(self): + tmpl_lookup = TemplateLookup(directories=[TMPL_DIR]) + t = tmpl_lookup.get_template('template.html') + self.assertEqual(t.render(name='mako'), 'Hello mako!\n') + + spans = self.tracer.writer.pop() + self.assertEqual(len(spans), 1) + + template_name = os.path.join(TMPL_DIR, 'template.html') + + self.assertEqual(spans[0].span_type, 'template') + self.assertEqual(spans[0].service, 'mako') + self.assertEqual(spans[0].get_tag('mako.template_name'), template_name) + self.assertEqual(spans[0].name, 'mako.template.render') + self.assertEqual(spans[0].resource, template_name) diff --git a/tests/contrib/molten/__init__.py b/tests/contrib/molten/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/molten/test_molten.py b/tests/contrib/molten/test_molten.py new file mode 100644 index 0000000000..8564234bd5 --- /dev/null +++ b/tests/contrib/molten/test_molten.py @@ -0,0 +1,315 @@ +import molten +from molten.testing import TestClient + +from ddtrace import Pin +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.ext import errors, http +from ddtrace.propagation.http import HTTP_HEADER_TRACE_ID, HTTP_HEADER_PARENT_ID +from ddtrace.contrib.molten import patch, unpatch +from ddtrace.contrib.molten.patch import MOLTEN_VERSION + +from ...base import BaseTracerTestCase +from ...utils import assert_span_http_status_code + + +# NOTE: Type annotations required by molten otherwise parameters cannot be coerced +def hello(name: str, age: int) -> str: + return f'Hello {age} year old named {name}!' + + +def molten_client(headers=None, params=None): + app = molten.App(routes=[molten.Route('/hello/{name}/{age}', hello)]) + client = TestClient(app) + uri = app.reverse_uri('hello', name='Jim', age=24) + return client.request('GET', uri, headers=headers, params=params) + + +class TestMolten(BaseTracerTestCase): + """"Ensures Molten is properly instrumented.""" + + TEST_SERVICE = 'molten-patch' + + def setUp(self): + super(TestMolten, self).setUp() + patch() + Pin.override(molten, tracer=self.tracer) + + def tearDown(self): + super(TestMolten, self).setUp() + unpatch() + + def test_route_success(self): + """ Tests request was a success with the expected span tags """ + response = molten_client() + spans = self.tracer.writer.pop() + self.assertEqual(response.status_code, 200) + # TestResponse from TestClient is wrapper around Response so we must + # access data property + self.assertEqual(response.data, '"Hello 24 year old named Jim!"') + span = spans[0] + self.assertEqual(span.service, 'molten') + self.assertEqual(span.name, 'molten.request') + self.assertEqual(span.span_type, 'web') + self.assertEqual(span.resource, 'GET /hello/{name}/{age}') + self.assertEqual(span.get_tag('http.method'), 'GET') + self.assertEqual(span.get_tag(http.URL), 'http://127.0.0.1:8000/hello/Jim/24') + assert_span_http_status_code(span, 200) + assert http.QUERY_STRING not in span.meta + + # See test_resources below for specifics of this difference + if MOLTEN_VERSION >= (0, 7, 2): + self.assertEqual(len(spans), 18) + else: + self.assertEqual(len(spans), 16) + + # test override of service name + Pin.override(molten, service=self.TEST_SERVICE) + response = molten_client() + spans = self.tracer.writer.pop() + self.assertEqual(spans[0].service, 'molten-patch') + + def test_route_success_query_string(self): + with self.override_http_config('molten', dict(trace_query_string=True)): + response = molten_client(params={'foo': 'bar'}) + spans = self.tracer.writer.pop() + self.assertEqual(response.status_code, 200) + # TestResponse from TestClient is wrapper around Response so we must + # access data property + self.assertEqual(response.data, '"Hello 24 year old named Jim!"') + span = spans[0] + self.assertEqual(span.service, 'molten') + self.assertEqual(span.name, 'molten.request') + self.assertEqual(span.resource, 'GET /hello/{name}/{age}') + self.assertEqual(span.get_tag('http.method'), 'GET') + self.assertEqual(span.get_tag(http.URL), 'http://127.0.0.1:8000/hello/Jim/24') + assert_span_http_status_code(span, 200) + self.assertEqual(span.get_tag(http.QUERY_STRING), 'foo=bar') + + def test_analytics_global_on_integration_default(self): + """ + When making a request + When an integration trace search is not event sample rate is not set and globally trace search is enabled + We expect the root span to have the appropriate tag + """ + with self.override_global_config(dict(analytics_enabled=True)): + response = molten_client() + self.assertEqual(response.status_code, 200) + # TestResponse from TestClient is wrapper around Response so we must + # access data property + self.assertEqual(response.data, '"Hello 24 year old named Jim!"') + + root_span = self.get_root_span() + root_span.assert_matches( + name='molten.request', metrics={ANALYTICS_SAMPLE_RATE_KEY: 1.0}, + ) + + def test_analytics_global_on_integration_on(self): + """ + When making a request + When an integration trace search is enabled and sample rate is set and globally trace search is enabled + We expect the root span to have the appropriate tag + """ + with self.override_global_config(dict(analytics_enabled=True)): + with self.override_config('molten', dict(analytics_enabled=True, analytics_sample_rate=0.5)): + response = molten_client() + self.assertEqual(response.status_code, 200) + # TestResponse from TestClient is wrapper around Response so we must + # access data property + self.assertEqual(response.data, '"Hello 24 year old named Jim!"') + + root_span = self.get_root_span() + root_span.assert_matches( + name='molten.request', metrics={ANALYTICS_SAMPLE_RATE_KEY: 0.5}, + ) + + def test_analytics_global_off_integration_default(self): + """ + When making a request + When an integration trace search is not set and sample rate is set and globally trace search is disabled + We expect the root span to not include tag + """ + with self.override_global_config(dict(analytics_enabled=False)): + response = molten_client() + self.assertEqual(response.status_code, 200) + # TestResponse from TestClient is wrapper around Response so we must + # access data property + self.assertEqual(response.data, '"Hello 24 year old named Jim!"') + + root_span = self.get_root_span() + self.assertIsNone(root_span.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + def test_analytics_global_off_integration_on(self): + """ + When making a request + When an integration trace search is enabled and sample rate is set and globally trace search is disabled + We expect the root span to have the appropriate tag + """ + with self.override_global_config(dict(analytics_enabled=False)): + with self.override_config('molten', dict(analytics_enabled=True, analytics_sample_rate=0.5)): + response = molten_client() + self.assertEqual(response.status_code, 200) + # TestResponse from TestClient is wrapper around Response so we must + # access data property + self.assertEqual(response.data, '"Hello 24 year old named Jim!"') + + root_span = self.get_root_span() + root_span.assert_matches( + name='molten.request', metrics={ANALYTICS_SAMPLE_RATE_KEY: 0.5}, + ) + + def test_route_failure(self): + app = molten.App(routes=[molten.Route('/hello/{name}/{age}', hello)]) + client = TestClient(app) + response = client.get('/goodbye') + spans = self.tracer.writer.pop() + self.assertEqual(response.status_code, 404) + span = spans[0] + self.assertEqual(span.service, 'molten') + self.assertEqual(span.name, 'molten.request') + self.assertEqual(span.resource, 'GET 404') + self.assertEqual(span.get_tag(http.URL), 'http://127.0.0.1:8000/goodbye') + self.assertEqual(span.get_tag('http.method'), 'GET') + assert_span_http_status_code(span, 404) + + def test_route_exception(self): + def route_error() -> str: + raise Exception('Error message') + app = molten.App(routes=[molten.Route('/error', route_error)]) + client = TestClient(app) + response = client.get('/error') + spans = self.tracer.writer.pop() + self.assertEqual(response.status_code, 500) + span = spans[0] + route_error_span = spans[-1] + self.assertEqual(span.service, 'molten') + self.assertEqual(span.name, 'molten.request') + self.assertEqual(span.resource, 'GET /error') + self.assertEqual(span.error, 1) + # error tags only set for route function span and not root span + self.assertIsNone(span.get_tag(errors.ERROR_MSG)) + self.assertEqual(route_error_span.get_tag(errors.ERROR_MSG), 'Error message') + + def test_resources(self): + """ Tests request has expected span resources """ + molten_client() + spans = self.tracer.writer.pop() + + # `can_handle_parameter` appears twice since two parameters are in request + # TODO[tahir]: missing ``resolve` method for components + + expected = [ + 'GET /hello/{name}/{age}', + 'molten.middleware.ResponseRendererMiddleware', + 'molten.components.HeaderComponent.can_handle_parameter', + 'molten.components.CookiesComponent.can_handle_parameter', + 'molten.components.QueryParamComponent.can_handle_parameter', + 'molten.components.RequestBodyComponent.can_handle_parameter', + 'molten.components.RequestDataComponent.can_handle_parameter', + 'molten.components.SchemaComponent.can_handle_parameter', + 'molten.components.UploadedFileComponent.can_handle_parameter', + 'molten.components.HeaderComponent.can_handle_parameter', + 'molten.components.CookiesComponent.can_handle_parameter', + 'molten.components.QueryParamComponent.can_handle_parameter', + 'molten.components.RequestBodyComponent.can_handle_parameter', + 'molten.components.RequestDataComponent.can_handle_parameter', + 'molten.components.SchemaComponent.can_handle_parameter', + 'molten.components.UploadedFileComponent.can_handle_parameter', + 'tests.contrib.molten.test_molten.hello', + 'molten.renderers.JSONRenderer.render' + ] + + # Addition of `UploadedFileComponent` in 0.7.2 changes expected spans + if MOLTEN_VERSION < (0, 7, 2): + expected = [ + r + for r in expected + if not r.startswith('molten.components.UploadedFileComponent') + ] + + self.assertEqual(len(spans), len(expected)) + self.assertEqual([s.resource for s in spans], expected) + + def test_distributed_tracing(self): + """ Tests whether span IDs are propogated when distributed tracing is on """ + # Default: distributed tracing enabled + response = molten_client(headers={ + HTTP_HEADER_TRACE_ID: '100', + HTTP_HEADER_PARENT_ID: '42', + }) + self.assertEqual(response.status_code, 200) + self.assertEqual(response.json(), 'Hello 24 year old named Jim!') + + spans = self.tracer.writer.pop() + span = spans[0] + self.assertEqual(span.name, 'molten.request') + self.assertEqual(span.trace_id, 100) + self.assertEqual(span.parent_id, 42) + + # Explicitly enable distributed tracing + with self.override_config('molten', dict(distributed_tracing=True)): + response = molten_client(headers={ + HTTP_HEADER_TRACE_ID: '100', + HTTP_HEADER_PARENT_ID: '42', + }) + self.assertEqual(response.status_code, 200) + self.assertEqual(response.json(), 'Hello 24 year old named Jim!') + + spans = self.tracer.writer.pop() + span = spans[0] + self.assertEqual(span.name, 'molten.request') + self.assertEqual(span.trace_id, 100) + self.assertEqual(span.parent_id, 42) + + # Now without tracing on + with self.override_config('molten', dict(distributed_tracing=False)): + response = molten_client(headers={ + HTTP_HEADER_TRACE_ID: '100', + HTTP_HEADER_PARENT_ID: '42', + }) + self.assertEqual(response.status_code, 200) + self.assertEqual(response.json(), 'Hello 24 year old named Jim!') + + spans = self.tracer.writer.pop() + span = spans[0] + self.assertEqual(span.name, 'molten.request') + self.assertNotEqual(span.trace_id, 100) + self.assertNotEqual(span.parent_id, 42) + + def test_unpatch_patch(self): + """ Tests unpatch-patch cycle """ + unpatch() + self.assertIsNone(Pin.get_from(molten)) + molten_client() + spans = self.tracer.writer.pop() + self.assertEqual(len(spans), 0) + + patch() + # Need to override Pin here as we do in setUp + Pin.override(molten, tracer=self.tracer) + self.assertTrue(Pin.get_from(molten) is not None) + molten_client() + spans = self.tracer.writer.pop() + self.assertTrue(len(spans) > 0) + + def test_patch_unpatch(self): + """ Tests repatch-unpatch cycle """ + # Already call patch in setUp + self.assertTrue(Pin.get_from(molten) is not None) + molten_client() + spans = self.tracer.writer.pop() + self.assertTrue(len(spans) > 0) + + # Test unpatch + unpatch() + self.assertTrue(Pin.get_from(molten) is None) + molten_client() + spans = self.tracer.writer.pop() + self.assertEqual(len(spans), 0) + + def test_patch_idempotence(self): + """ Tests repatching """ + # Already call patch in setUp but patch again + patch() + molten_client() + spans = self.tracer.writer.pop() + self.assertTrue(len(spans) > 0) diff --git a/tests/contrib/molten/test_molten_di.py b/tests/contrib/molten/test_molten_di.py new file mode 100644 index 0000000000..238f1bcc45 --- /dev/null +++ b/tests/contrib/molten/test_molten_di.py @@ -0,0 +1,118 @@ +from unittest import TestCase + +# Test base adapted from molten/tests/test_dependency_injection.py + +from inspect import Parameter + +import molten +from molten import DependencyInjector + +from ddtrace import Pin +from ddtrace.contrib.molten import patch, unpatch + +from ...test_tracer import get_dummy_tracer + + +class Settings(dict): + pass + + +class SettingsComponent: + is_singleton = True + + def can_handle_parameter(self, parameter: Parameter) -> bool: + return parameter.annotation is Settings + + def resolve(self) -> Settings: + return Settings() + + +class Metrics: + __slots__ = ['settings'] + + def __init__(self, settings: Settings) -> None: + self.settings = settings + + +class MetricsComponent: + is_singleton = True + + def can_handle_parameter(self, parameter: Parameter) -> bool: + return parameter.annotation is Metrics + + def resolve(self, settings: Settings) -> Metrics: + return Metrics(settings) + + +class DB: + __slots__ = ['settings', 'metrics'] + + def __init__(self, settings: Settings, metrics: Metrics) -> None: + self.settings = settings + self.metrics = metrics + + +class DBComponent: + is_singleton = True + + def can_handle_parameter(self, parameter: Parameter) -> bool: + return parameter.annotation is DB + + def resolve(self, settings: Settings, metrics: Metrics) -> DB: + return DB(settings, metrics) + + +class Accounts: + def __init__(self, db: DB) -> None: + self.db = db + + def get_all(self): + return [] + + +class AccountsComponent: + def can_handle_parameter(self, parameter: Parameter) -> bool: + return parameter.annotation is Accounts + + def resolve(self, db: DB) -> Accounts: + return Accounts(db) + + +class TestMoltenDI(TestCase): + """"Ensures Molten dependency injection is properly instrumented.""" + + TEST_SERVICE = 'molten-patch-di' + + def setUp(self): + patch() + self.tracer = get_dummy_tracer() + Pin.override(molten, tracer=self.tracer, service=self.TEST_SERVICE) + + def tearDown(self): + unpatch() + self.tracer.writer.pop() + + def test_di_can_inject_dependencies(self): + # Given that I have a DI instance + di = DependencyInjector(components=[ + SettingsComponent(), + MetricsComponent(), + DBComponent(), + AccountsComponent(), + ]) + + # And a function that uses DI + def example(accounts: Accounts): + assert accounts.get_all() == [] + return accounts + + # When I resolve that function + # Then all the parameters should resolve as expected + resolver = di.get_resolver() + resolved_example = resolver.resolve(example) + resolved_example() + + spans = self.tracer.writer.pop() + + # TODO[tahir]: We could in future trace the resolve method on components + self.assertEqual(len(spans), 0) diff --git a/tests/contrib/mongoengine/__init__.py b/tests/contrib/mongoengine/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/mongoengine/test.py b/tests/contrib/mongoengine/test.py new file mode 100644 index 0000000000..fad28a549f --- /dev/null +++ b/tests/contrib/mongoengine/test.py @@ -0,0 +1,303 @@ +# stdib +import time +import unittest + +# 3p +import mongoengine +import pymongo + +# project +from ddtrace import Pin +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.contrib.mongoengine.patch import patch, unpatch +from ddtrace.ext import mongo as mongox + +# testing +from tests.opentracer.utils import init_tracer +from ..config import MONGO_CONFIG +from ...base import override_config +from ...test_tracer import get_dummy_tracer + + +class Artist(mongoengine.Document): + first_name = mongoengine.StringField(max_length=50) + last_name = mongoengine.StringField(max_length=50) + + +class MongoEngineCore(object): + + # Define the service at the class level, so that each test suite can use a different service + # and therefore catch any sneaky badly-unpatched stuff. + TEST_SERVICE = 'deadbeef' + + def get_tracer_and_connect(self): + # implement me + pass + + def test_insert_update_delete_query(self): + tracer = self.get_tracer_and_connect() + + start = time.time() + Artist.drop_collection() + end = time.time() + + # ensure we get a drop collection span + spans = tracer.writer.pop() + assert len(spans) == 1 + span = spans[0] + assert span.resource == 'drop artist' + assert span.span_type == 'mongodb' + assert span.service == self.TEST_SERVICE + _assert_timing(span, start, end) + + start = end + joni = Artist() + joni.first_name = 'Joni' + joni.last_name = 'Mitchell' + joni.save() + end = time.time() + + # ensure we get an insert span + spans = tracer.writer.pop() + assert len(spans) == 1 + span = spans[0] + assert span.resource == 'insert artist' + assert span.span_type == 'mongodb' + assert span.service == self.TEST_SERVICE + _assert_timing(span, start, end) + + # ensure full scans work + start = time.time() + artists = [a for a in Artist.objects] + end = time.time() + assert len(artists) == 1 + assert artists[0].first_name == 'Joni' + assert artists[0].last_name == 'Mitchell' + + # query names should be used in pymongo>3.1 + name = 'find' if pymongo.version_tuple >= (3, 1, 0) else 'query' + + spans = tracer.writer.pop() + assert len(spans) == 1 + span = spans[0] + assert span.resource == '{} artist'.format(name) + assert span.span_type == 'mongodb' + assert span.service == self.TEST_SERVICE + _assert_timing(span, start, end) + + # ensure filtered queries work + start = time.time() + artists = [a for a in Artist.objects(first_name='Joni')] + end = time.time() + assert len(artists) == 1 + joni = artists[0] + assert artists[0].first_name == 'Joni' + assert artists[0].last_name == 'Mitchell' + + spans = tracer.writer.pop() + assert len(spans) == 1 + span = spans[0] + assert span.resource == '{} artist {{"first_name": "?"}}'.format(name) + assert span.span_type == 'mongodb' + assert span.service == self.TEST_SERVICE + _assert_timing(span, start, end) + + # ensure updates work + start = time.time() + joni.last_name = 'From Saskatoon' + joni.save() + end = time.time() + + spans = tracer.writer.pop() + assert len(spans) == 1 + span = spans[0] + assert span.resource == 'update artist {"_id": "?"}' + assert span.span_type == 'mongodb' + assert span.service == self.TEST_SERVICE + _assert_timing(span, start, end) + + # ensure deletes + start = time.time() + joni.delete() + end = time.time() + + spans = tracer.writer.pop() + assert len(spans) == 1 + span = spans[0] + assert span.resource == 'delete artist {"_id": "?"}' + assert span.span_type == 'mongodb' + assert span.service == self.TEST_SERVICE + _assert_timing(span, start, end) + + def test_opentracing(self): + """Ensure the opentracer works with mongoengine.""" + tracer = self.get_tracer_and_connect() + ot_tracer = init_tracer('my_svc', tracer) + + with ot_tracer.start_active_span('ot_span'): + start = time.time() + Artist.drop_collection() + end = time.time() + + # ensure we get a drop collection span + spans = tracer.writer.pop() + assert len(spans) == 2 + ot_span, dd_span = spans + + # confirm the parenting + assert ot_span.parent_id is None + assert dd_span.parent_id == ot_span.span_id + + assert ot_span.name == 'ot_span' + assert ot_span.service == 'my_svc' + + assert dd_span.resource == 'drop artist' + assert dd_span.span_type == 'mongodb' + assert dd_span.service == self.TEST_SERVICE + _assert_timing(dd_span, start, end) + + def test_analytics_default(self): + tracer = self.get_tracer_and_connect() + Artist.drop_collection() + + spans = tracer.writer.pop() + assert len(spans) == 1 + assert spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY) is None + + def test_analytics_with_rate(self): + with override_config( + 'pymongo', + dict(analytics_enabled=True, analytics_sample_rate=0.5) + ): + tracer = self.get_tracer_and_connect() + Artist.drop_collection() + + spans = tracer.writer.pop() + assert len(spans) == 1 + assert spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY) == 0.5 + + def test_analytics_without_rate(self): + with override_config( + 'pymongo', + dict(analytics_enabled=True) + ): + tracer = self.get_tracer_and_connect() + Artist.drop_collection() + + spans = tracer.writer.pop() + assert len(spans) == 1 + assert spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY) == 1.0 + + +class TestMongoEnginePatchConnectDefault(unittest.TestCase, MongoEngineCore): + """Test suite with a global Pin for the connect function with the default configuration""" + + TEST_SERVICE = mongox.SERVICE + + def setUp(self): + patch() + + def tearDown(self): + unpatch() + # Disconnect and remove the client + mongoengine.connection.disconnect() + + def get_tracer_and_connect(self): + tracer = get_dummy_tracer() + Pin.get_from(mongoengine.connect).clone( + tracer=tracer).onto(mongoengine.connect) + mongoengine.connect(port=MONGO_CONFIG['port']) + + return tracer + + +class TestMongoEnginePatchConnect(TestMongoEnginePatchConnectDefault): + """Test suite with a global Pin for the connect function with custom service""" + + TEST_SERVICE = 'test-mongo-patch-connect' + + def get_tracer_and_connect(self): + tracer = TestMongoEnginePatchConnectDefault.get_tracer_and_connect(self) + Pin(service=self.TEST_SERVICE, tracer=tracer).onto(mongoengine.connect) + mongoengine.connect(port=MONGO_CONFIG['port']) + + return tracer + + +class TestMongoEnginePatchClientDefault(unittest.TestCase, MongoEngineCore): + """Test suite with a Pin local to a specific client with default configuration""" + + TEST_SERVICE = mongox.SERVICE + + def setUp(self): + patch() + + def tearDown(self): + unpatch() + # Disconnect and remove the client + mongoengine.connection.disconnect() + + def get_tracer_and_connect(self): + tracer = get_dummy_tracer() + client = mongoengine.connect(port=MONGO_CONFIG['port']) + Pin.get_from(client).clone(tracer=tracer).onto(client) + + return tracer + + +class TestMongoEnginePatchClient(TestMongoEnginePatchClientDefault): + """Test suite with a Pin local to a specific client with custom service""" + + TEST_SERVICE = 'test-mongo-patch-client' + + def get_tracer_and_connect(self): + tracer = get_dummy_tracer() + # Set a connect-level service, to check that we properly override it + Pin(service='not-%s' % self.TEST_SERVICE).onto(mongoengine.connect) + client = mongoengine.connect(port=MONGO_CONFIG['port']) + Pin(service=self.TEST_SERVICE, tracer=tracer).onto(client) + + return tracer + + def test_patch_unpatch(self): + tracer = get_dummy_tracer() + + # Test patch idempotence + patch() + patch() + + client = mongoengine.connect(port=MONGO_CONFIG['port']) + Pin.get_from(client).clone(tracer=tracer).onto(client) + + Artist.drop_collection() + spans = tracer.writer.pop() + assert spans, spans + assert len(spans) == 1 + + mongoengine.connection.disconnect() + tracer.writer.pop() + + # Test unpatch + unpatch() + + mongoengine.connect(port=MONGO_CONFIG['port']) + + Artist.drop_collection() + spans = tracer.writer.pop() + assert not spans, spans + + # Test patch again + patch() + + client = mongoengine.connect(port=MONGO_CONFIG['port']) + Pin.get_from(client).clone(tracer=tracer).onto(client) + + Artist.drop_collection() + spans = tracer.writer.pop() + assert spans, spans + assert len(spans) == 1 + + +def _assert_timing(span, start, end): + assert start < span.start < end + assert span.duration < end - start diff --git a/tests/contrib/mongoengine/test_backwards.py b/tests/contrib/mongoengine/test_backwards.py new file mode 100644 index 0000000000..ff396ec3de --- /dev/null +++ b/tests/contrib/mongoengine/test_backwards.py @@ -0,0 +1,26 @@ +""" +ensure old interfaces exist and won't break things. +""" +import mongoengine + +from tests.test_tracer import get_dummy_tracer +from tests.contrib import config + + +class Singer(mongoengine.Document): + first_name = mongoengine.StringField(max_length=50) + last_name = mongoengine.StringField(max_length=50) + + +def test_less_than_v04(): + # interface from < v0.4 + from ddtrace.contrib.mongoengine import trace_mongoengine + tracer = get_dummy_tracer() + + connect = trace_mongoengine(tracer, service='my-mongo-db', patch=False) + connect(port=config.MONGO_CONFIG['port']) + + lc = Singer() + lc.first_name = 'leonard' + lc.last_name = 'cohen' + lc.save() diff --git a/tests/contrib/mysql/__init__.py b/tests/contrib/mysql/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/mysql/test_backwards_compatibility.py b/tests/contrib/mysql/test_backwards_compatibility.py new file mode 100644 index 0000000000..302cb0fdce --- /dev/null +++ b/tests/contrib/mysql/test_backwards_compatibility.py @@ -0,0 +1,13 @@ + +from ddtrace.contrib.mysql import get_traced_mysql_connection +from tests.test_tracer import get_dummy_tracer +from tests.contrib import config + + +def test_pre_v4(): + tracer = get_dummy_tracer() + MySQL = get_traced_mysql_connection(tracer, service='my-mysql-server') + conn = MySQL(**config.MYSQL_CONFIG) + cursor = conn.cursor() + cursor.execute('SELECT 1') + assert cursor.fetchone()[0] == 1 diff --git a/tests/contrib/mysql/test_mysql.py b/tests/contrib/mysql/test_mysql.py new file mode 100644 index 0000000000..d9872c3f92 --- /dev/null +++ b/tests/contrib/mysql/test_mysql.py @@ -0,0 +1,437 @@ +# 3p +import mysql + +# project +from ddtrace import Pin +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.contrib.mysql.patch import patch, unpatch + +# tests +from tests.contrib.config import MYSQL_CONFIG +from tests.opentracer.utils import init_tracer +from ...base import BaseTracerTestCase +from ...util import assert_dict_issuperset + + +class MySQLCore(object): + """Base test case for MySQL drivers""" + conn = None + TEST_SERVICE = 'test-mysql' + + def tearDown(self): + super(MySQLCore, self).tearDown() + + # Reuse the connection across tests + if self.conn: + try: + self.conn.ping() + except mysql.InterfaceError: + pass + else: + self.conn.close() + unpatch() + + def _get_conn_tracer(self): + # implement me + pass + + def test_simple_query(self): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + cursor = conn.cursor() + cursor.execute('SELECT 1') + rows = cursor.fetchall() + assert len(rows) == 1 + spans = writer.pop() + assert len(spans) == 1 + + span = spans[0] + assert span.service == self.TEST_SERVICE + assert span.name == 'mysql.query' + assert span.span_type == 'sql' + assert span.error == 0 + assert span.get_metric('out.port') == 3306 + assert_dict_issuperset(span.meta, { + 'out.host': u'127.0.0.1', + 'db.name': u'test', + 'db.user': u'test', + }) + + def test_simple_query_fetchll(self): + with self.override_config('dbapi2', dict(trace_fetch_methods=True)): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + cursor = conn.cursor() + cursor.execute('SELECT 1') + rows = cursor.fetchall() + assert len(rows) == 1 + spans = writer.pop() + assert len(spans) == 2 + + span = spans[0] + assert span.service == self.TEST_SERVICE + assert span.name == 'mysql.query' + assert span.span_type == 'sql' + assert span.error == 0 + assert span.get_metric('out.port') == 3306 + assert_dict_issuperset(span.meta, { + 'out.host': u'127.0.0.1', + 'db.name': u'test', + 'db.user': u'test', + }) + + assert spans[1].name == 'mysql.query.fetchall' + + def test_query_with_several_rows(self): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + cursor = conn.cursor() + query = 'SELECT n FROM (SELECT 42 n UNION SELECT 421 UNION SELECT 4210) m' + cursor.execute(query) + rows = cursor.fetchall() + assert len(rows) == 3 + spans = writer.pop() + assert len(spans) == 1 + span = spans[0] + assert span.get_tag('sql.query') is None + + def test_query_with_several_rows_fetchall(self): + with self.override_config('dbapi2', dict(trace_fetch_methods=True)): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + cursor = conn.cursor() + query = 'SELECT n FROM (SELECT 42 n UNION SELECT 421 UNION SELECT 4210) m' + cursor.execute(query) + rows = cursor.fetchall() + assert len(rows) == 3 + spans = writer.pop() + assert len(spans) == 2 + span = spans[0] + assert span.get_tag('sql.query') is None + assert spans[1].name == 'mysql.query.fetchall' + + def test_query_many(self): + # tests that the executemany method is correctly wrapped. + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + tracer.enabled = False + cursor = conn.cursor() + + cursor.execute(""" + create table if not exists dummy ( + dummy_key VARCHAR(32) PRIMARY KEY, + dummy_value TEXT NOT NULL)""") + tracer.enabled = True + + stmt = 'INSERT INTO dummy (dummy_key, dummy_value) VALUES (%s, %s)' + data = [ + ('foo', 'this is foo'), + ('bar', 'this is bar'), + ] + cursor.executemany(stmt, data) + query = 'SELECT dummy_key, dummy_value FROM dummy ORDER BY dummy_key' + cursor.execute(query) + rows = cursor.fetchall() + assert len(rows) == 2 + assert rows[0][0] == 'bar' + assert rows[0][1] == 'this is bar' + assert rows[1][0] == 'foo' + assert rows[1][1] == 'this is foo' + + spans = writer.pop() + assert len(spans) == 2 + span = spans[-1] + assert span.get_tag('sql.query') is None + cursor.execute('drop table if exists dummy') + + def test_query_many_fetchall(self): + with self.override_config('dbapi2', dict(trace_fetch_methods=True)): + # tests that the executemany method is correctly wrapped. + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + tracer.enabled = False + cursor = conn.cursor() + + cursor.execute(""" + create table if not exists dummy ( + dummy_key VARCHAR(32) PRIMARY KEY, + dummy_value TEXT NOT NULL)""") + tracer.enabled = True + + stmt = 'INSERT INTO dummy (dummy_key, dummy_value) VALUES (%s, %s)' + data = [ + ('foo', 'this is foo'), + ('bar', 'this is bar'), + ] + cursor.executemany(stmt, data) + query = 'SELECT dummy_key, dummy_value FROM dummy ORDER BY dummy_key' + cursor.execute(query) + rows = cursor.fetchall() + assert len(rows) == 2 + assert rows[0][0] == 'bar' + assert rows[0][1] == 'this is bar' + assert rows[1][0] == 'foo' + assert rows[1][1] == 'this is foo' + + spans = writer.pop() + assert len(spans) == 3 + span = spans[-1] + assert span.get_tag('sql.query') is None + cursor.execute('drop table if exists dummy') + + assert spans[2].name == 'mysql.query.fetchall' + + def test_query_proc(self): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + + # create a procedure + tracer.enabled = False + cursor = conn.cursor() + cursor.execute('DROP PROCEDURE IF EXISTS sp_sum') + cursor.execute(""" + CREATE PROCEDURE sp_sum (IN p1 INTEGER, IN p2 INTEGER, OUT p3 INTEGER) + BEGIN + SET p3 := p1 + p2; + END;""") + + tracer.enabled = True + proc = 'sp_sum' + data = (40, 2, None) + output = cursor.callproc(proc, data) + assert len(output) == 3 + assert output[2] == 42 + + spans = writer.pop() + assert spans, spans + + # number of spans depends on MySQL implementation details, + # typically, internal calls to execute, but at least we + # can expect the last closed span to be our proc. + span = spans[len(spans) - 1] + assert span.service == self.TEST_SERVICE + assert span.name == 'mysql.query' + assert span.span_type == 'sql' + assert span.error == 0 + assert span.get_metric('out.port') == 3306 + assert_dict_issuperset(span.meta, { + 'out.host': u'127.0.0.1', + 'db.name': u'test', + 'db.user': u'test', + }) + assert span.get_tag('sql.query') is None + + def test_simple_query_ot(self): + """OpenTracing version of test_simple_query.""" + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + + ot_tracer = init_tracer('mysql_svc', tracer) + + with ot_tracer.start_active_span('mysql_op'): + cursor = conn.cursor() + cursor.execute('SELECT 1') + rows = cursor.fetchall() + assert len(rows) == 1 + + spans = writer.pop() + assert len(spans) == 2 + + ot_span, dd_span = spans + + # confirm parenting + assert ot_span.parent_id is None + assert dd_span.parent_id == ot_span.span_id + + assert ot_span.service == 'mysql_svc' + assert ot_span.name == 'mysql_op' + + assert dd_span.service == self.TEST_SERVICE + assert dd_span.name == 'mysql.query' + assert dd_span.span_type == 'sql' + assert dd_span.error == 0 + assert dd_span.get_metric('out.port') == 3306 + assert_dict_issuperset(dd_span.meta, { + 'out.host': u'127.0.0.1', + 'db.name': u'test', + 'db.user': u'test', + }) + + def test_simple_query_ot_fetchall(self): + """OpenTracing version of test_simple_query.""" + with self.override_config('dbapi2', dict(trace_fetch_methods=True)): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + + ot_tracer = init_tracer('mysql_svc', tracer) + + with ot_tracer.start_active_span('mysql_op'): + cursor = conn.cursor() + cursor.execute('SELECT 1') + rows = cursor.fetchall() + assert len(rows) == 1 + + spans = writer.pop() + assert len(spans) == 3 + + ot_span, dd_span, fetch_span = spans + + # confirm parenting + assert ot_span.parent_id is None + assert dd_span.parent_id == ot_span.span_id + + assert ot_span.service == 'mysql_svc' + assert ot_span.name == 'mysql_op' + + assert dd_span.service == self.TEST_SERVICE + assert dd_span.name == 'mysql.query' + assert dd_span.span_type == 'sql' + assert dd_span.error == 0 + assert dd_span.get_metric('out.port') == 3306 + assert_dict_issuperset(dd_span.meta, { + 'out.host': u'127.0.0.1', + 'db.name': u'test', + 'db.user': u'test', + }) + + assert fetch_span.name == 'mysql.query.fetchall' + + def test_commit(self): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + conn.commit() + spans = writer.pop() + assert len(spans) == 1 + span = spans[0] + assert span.service == self.TEST_SERVICE + assert span.name == 'mysql.connection.commit' + + def test_rollback(self): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + conn.rollback() + spans = writer.pop() + assert len(spans) == 1 + span = spans[0] + assert span.service == self.TEST_SERVICE + assert span.name == 'mysql.connection.rollback' + + def test_analytics_default(self): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + cursor = conn.cursor() + cursor.execute('SELECT 1') + rows = cursor.fetchall() + assert len(rows) == 1 + spans = writer.pop() + + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertIsNone(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + def test_analytics_with_rate(self): + with self.override_config( + 'dbapi2', + dict(analytics_enabled=True, analytics_sample_rate=0.5) + ): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + cursor = conn.cursor() + cursor.execute('SELECT 1') + rows = cursor.fetchall() + assert len(rows) == 1 + spans = writer.pop() + + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY), 0.5) + + def test_analytics_without_rate(self): + with self.override_config( + 'dbapi2', + dict(analytics_enabled=True) + ): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + cursor = conn.cursor() + cursor.execute('SELECT 1') + rows = cursor.fetchall() + assert len(rows) == 1 + spans = writer.pop() + + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY), 1.0) + + +class TestMysqlPatch(MySQLCore, BaseTracerTestCase): + + def setUp(self): + super(TestMysqlPatch, self).setUp() + patch() + + def tearDown(self): + super(TestMysqlPatch, self).tearDown() + unpatch() + + def _get_conn_tracer(self): + if not self.conn: + self.conn = mysql.connector.connect(**MYSQL_CONFIG) + assert self.conn.is_connected() + # Ensure that the default pin is there, with its default value + pin = Pin.get_from(self.conn) + assert pin + assert pin.service == 'mysql' + # Customize the service + # we have to apply it on the existing one since new one won't inherit `app` + pin.clone( + service=self.TEST_SERVICE, tracer=self.tracer).onto(self.conn) + + return self.conn, self.tracer + + def test_patch_unpatch(self): + unpatch() + # assert we start unpatched + conn = mysql.connector.connect(**MYSQL_CONFIG) + assert not Pin.get_from(conn) + conn.close() + + patch() + try: + writer = self.tracer.writer + conn = mysql.connector.connect(**MYSQL_CONFIG) + pin = Pin.get_from(conn) + assert pin + pin.clone( + service=self.TEST_SERVICE, tracer=self.tracer).onto(conn) + assert conn.is_connected() + + cursor = conn.cursor() + cursor.execute('SELECT 1') + rows = cursor.fetchall() + assert len(rows) == 1 + spans = writer.pop() + assert len(spans) == 1 + + span = spans[0] + assert span.service == self.TEST_SERVICE + assert span.name == 'mysql.query' + assert span.span_type == 'sql' + assert span.error == 0 + assert span.get_metric('out.port') == 3306 + assert_dict_issuperset(span.meta, { + 'out.host': u'127.0.0.1', + 'db.name': u'test', + 'db.user': u'test', + }) + assert span.get_tag('sql.query') is None + + finally: + unpatch() + + # assert we finish unpatched + conn = mysql.connector.connect(**MYSQL_CONFIG) + assert not Pin.get_from(conn) + conn.close() + + patch() diff --git a/tests/contrib/mysqldb/__init__.py b/tests/contrib/mysqldb/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/mysqldb/test_mysql.py b/tests/contrib/mysqldb/test_mysql.py new file mode 100644 index 0000000000..15581e1f1d --- /dev/null +++ b/tests/contrib/mysqldb/test_mysql.py @@ -0,0 +1,505 @@ +import MySQLdb + +from ddtrace import Pin +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.contrib.mysqldb.patch import patch, unpatch + +from tests.opentracer.utils import init_tracer +from ..config import MYSQL_CONFIG +from ...base import BaseTracerTestCase +from ...util import assert_dict_issuperset + + +class MySQLCore(object): + """Base test case for MySQL drivers""" + conn = None + TEST_SERVICE = 'test-mysql' + + def setUp(self): + super(MySQLCore, self).setUp() + + patch() + + def tearDown(self): + super(MySQLCore, self).tearDown() + + # Reuse the connection across tests + if self.conn: + try: + self.conn.ping() + except MySQLdb.InterfaceError: + pass + else: + self.conn.close() + unpatch() + + def _get_conn_tracer(self): + # implement me + pass + + def test_simple_query(self): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + cursor = conn.cursor() + rowcount = cursor.execute('SELECT 1') + assert rowcount == 1 + rows = cursor.fetchall() + assert len(rows) == 1 + spans = writer.pop() + assert len(spans) == 1 + + span = spans[0] + assert span.service == self.TEST_SERVICE + assert span.name == 'mysql.query' + assert span.span_type == 'sql' + assert span.error == 0 + assert span.get_metric('out.port') == 3306 + assert_dict_issuperset(span.meta, { + 'out.host': u'127.0.0.1', + 'db.name': u'test', + 'db.user': u'test', + }) + + def test_simple_query_fetchall(self): + with self.override_config('dbapi2', dict(trace_fetch_methods=True)): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + cursor = conn.cursor() + cursor.execute('SELECT 1') + rows = cursor.fetchall() + assert len(rows) == 1 + spans = writer.pop() + assert len(spans) == 2 + + span = spans[0] + assert span.service == self.TEST_SERVICE + assert span.name == 'mysql.query' + assert span.span_type == 'sql' + assert span.error == 0 + assert span.get_metric('out.port') == 3306 + assert_dict_issuperset(span.meta, { + 'out.host': u'127.0.0.1', + 'db.name': u'test', + 'db.user': u'test', + }) + fetch_span = spans[1] + assert fetch_span.name == 'mysql.query.fetchall' + + def test_simple_query_with_positional_args(self): + conn, tracer = self._get_conn_tracer_with_positional_args() + writer = tracer.writer + cursor = conn.cursor() + cursor.execute('SELECT 1') + rows = cursor.fetchall() + assert len(rows) == 1 + spans = writer.pop() + assert len(spans) == 1 + + span = spans[0] + assert span.service == self.TEST_SERVICE + assert span.name == 'mysql.query' + assert span.span_type == 'sql' + assert span.error == 0 + assert span.get_metric('out.port') == 3306 + assert_dict_issuperset(span.meta, { + 'out.host': u'127.0.0.1', + 'db.name': u'test', + 'db.user': u'test', + }) + + def test_simple_query_with_positional_args_fetchall(self): + with self.override_config('dbapi2', dict(trace_fetch_methods=True)): + conn, tracer = self._get_conn_tracer_with_positional_args() + writer = tracer.writer + cursor = conn.cursor() + cursor.execute('SELECT 1') + rows = cursor.fetchall() + assert len(rows) == 1 + spans = writer.pop() + assert len(spans) == 2 + + span = spans[0] + assert span.service == self.TEST_SERVICE + assert span.name == 'mysql.query' + assert span.span_type == 'sql' + assert span.error == 0 + assert span.get_metric('out.port') == 3306 + assert_dict_issuperset(span.meta, { + 'out.host': u'127.0.0.1', + 'db.name': u'test', + 'db.user': u'test', + }) + fetch_span = spans[1] + assert fetch_span.name == 'mysql.query.fetchall' + + def test_query_with_several_rows(self): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + cursor = conn.cursor() + query = 'SELECT n FROM (SELECT 42 n UNION SELECT 421 UNION SELECT 4210) m' + cursor.execute(query) + rows = cursor.fetchall() + assert len(rows) == 3 + spans = writer.pop() + assert len(spans) == 1 + span = spans[0] + assert span.get_tag('sql.query') is None + + def test_query_with_several_rows_fetchall(self): + with self.override_config('dbapi2', dict(trace_fetch_methods=True)): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + cursor = conn.cursor() + query = 'SELECT n FROM (SELECT 42 n UNION SELECT 421 UNION SELECT 4210) m' + cursor.execute(query) + rows = cursor.fetchall() + assert len(rows) == 3 + spans = writer.pop() + assert len(spans) == 2 + span = spans[0] + assert span.get_tag('sql.query') is None + fetch_span = spans[1] + assert fetch_span.name == 'mysql.query.fetchall' + + def test_query_many(self): + # tests that the executemany method is correctly wrapped. + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + tracer.enabled = False + cursor = conn.cursor() + + cursor.execute(""" + create table if not exists dummy ( + dummy_key VARCHAR(32) PRIMARY KEY, + dummy_value TEXT NOT NULL)""") + tracer.enabled = True + + stmt = 'INSERT INTO dummy (dummy_key, dummy_value) VALUES (%s, %s)' + data = [ + ('foo', 'this is foo'), + ('bar', 'this is bar'), + ] + cursor.executemany(stmt, data) + query = 'SELECT dummy_key, dummy_value FROM dummy ORDER BY dummy_key' + cursor.execute(query) + rows = cursor.fetchall() + assert len(rows) == 2 + assert rows[0][0] == 'bar' + assert rows[0][1] == 'this is bar' + assert rows[1][0] == 'foo' + assert rows[1][1] == 'this is foo' + + spans = writer.pop() + assert len(spans) == 2 + span = spans[1] + assert span.get_tag('sql.query') is None + cursor.execute('drop table if exists dummy') + + def test_query_many_fetchall(self): + with self.override_config('dbapi2', dict(trace_fetch_methods=True)): + # tests that the executemany method is correctly wrapped. + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + tracer.enabled = False + cursor = conn.cursor() + + cursor.execute(""" + create table if not exists dummy ( + dummy_key VARCHAR(32) PRIMARY KEY, + dummy_value TEXT NOT NULL)""") + tracer.enabled = True + + stmt = 'INSERT INTO dummy (dummy_key, dummy_value) VALUES (%s, %s)' + data = [ + ('foo', 'this is foo'), + ('bar', 'this is bar'), + ] + cursor.executemany(stmt, data) + query = 'SELECT dummy_key, dummy_value FROM dummy ORDER BY dummy_key' + cursor.execute(query) + rows = cursor.fetchall() + assert len(rows) == 2 + assert rows[0][0] == 'bar' + assert rows[0][1] == 'this is bar' + assert rows[1][0] == 'foo' + assert rows[1][1] == 'this is foo' + + spans = writer.pop() + assert len(spans) == 3 + span = spans[1] + assert span.get_tag('sql.query') is None + cursor.execute('drop table if exists dummy') + fetch_span = spans[2] + assert fetch_span.name == 'mysql.query.fetchall' + + def test_query_proc(self): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + + # create a procedure + tracer.enabled = False + cursor = conn.cursor() + cursor.execute('DROP PROCEDURE IF EXISTS sp_sum') + cursor.execute(""" + CREATE PROCEDURE sp_sum (IN p1 INTEGER, IN p2 INTEGER, OUT p3 INTEGER) + BEGIN + SET p3 := p1 + p2; + END;""") + + tracer.enabled = True + proc = 'sp_sum' + data = (40, 2, None) + output = cursor.callproc(proc, data) + assert len(output) == 3 + # resulted p3 isn't stored on output[2], we need to fetch it with select + # http://mysqlclient.readthedocs.io/user_guide.html#cursor-objects + cursor.execute('SELECT @_sp_sum_2;') + assert cursor.fetchone()[0] == 42 + + spans = writer.pop() + assert spans, spans + + # number of spans depends on MySQL implementation details, + # typically, internal calls to execute, but at least we + # can expect the next to the last closed span to be our proc. + span = spans[-2] + assert span.service == self.TEST_SERVICE + assert span.name == 'mysql.query' + assert span.span_type == 'sql' + assert span.error == 0 + assert span.get_metric('out.port') == 3306 + assert_dict_issuperset(span.meta, { + 'out.host': u'127.0.0.1', + 'db.name': u'test', + 'db.user': u'test', + }) + assert span.get_tag('sql.query') is None + + def test_simple_query_ot(self): + """OpenTracing version of test_simple_query.""" + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + ot_tracer = init_tracer('mysql_svc', tracer) + with ot_tracer.start_active_span('mysql_op'): + cursor = conn.cursor() + cursor.execute('SELECT 1') + rows = cursor.fetchall() + assert len(rows) == 1 + + spans = writer.pop() + assert len(spans) == 2 + ot_span, dd_span = spans + + # confirm parenting + assert ot_span.parent_id is None + assert dd_span.parent_id == ot_span.span_id + + assert ot_span.service == 'mysql_svc' + assert ot_span.name == 'mysql_op' + + assert dd_span.service == self.TEST_SERVICE + assert dd_span.name == 'mysql.query' + assert dd_span.span_type == 'sql' + assert dd_span.error == 0 + assert dd_span.get_metric('out.port') == 3306 + assert_dict_issuperset(dd_span.meta, { + 'out.host': u'127.0.0.1', + 'db.name': u'test', + 'db.user': u'test', + }) + + def test_simple_query_ot_fetchall(self): + """OpenTracing version of test_simple_query.""" + with self.override_config('dbapi2', dict(trace_fetch_methods=True)): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + ot_tracer = init_tracer('mysql_svc', tracer) + with ot_tracer.start_active_span('mysql_op'): + cursor = conn.cursor() + cursor.execute('SELECT 1') + rows = cursor.fetchall() + assert len(rows) == 1 + + spans = writer.pop() + assert len(spans) == 3 + ot_span, dd_span, fetch_span = spans + + # confirm parenting + assert ot_span.parent_id is None + assert dd_span.parent_id == ot_span.span_id + + assert ot_span.service == 'mysql_svc' + assert ot_span.name == 'mysql_op' + + assert dd_span.service == self.TEST_SERVICE + assert dd_span.name == 'mysql.query' + assert dd_span.span_type == 'sql' + assert dd_span.error == 0 + assert dd_span.get_metric('out.port') == 3306 + assert_dict_issuperset(dd_span.meta, { + 'out.host': u'127.0.0.1', + 'db.name': u'test', + 'db.user': u'test', + }) + + assert fetch_span.name == 'mysql.query.fetchall' + + def test_commit(self): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + conn.commit() + spans = writer.pop() + assert len(spans) == 1 + span = spans[0] + assert span.service == self.TEST_SERVICE + assert span.name == 'MySQLdb.connection.commit' + + def test_rollback(self): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + conn.rollback() + spans = writer.pop() + assert len(spans) == 1 + span = spans[0] + assert span.service == self.TEST_SERVICE + assert span.name == 'MySQLdb.connection.rollback' + + def test_analytics_default(self): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + cursor = conn.cursor() + cursor.execute('SELECT 1') + rows = cursor.fetchall() + assert len(rows) == 1 + spans = writer.pop() + + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertIsNone(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + def test_analytics_with_rate(self): + with self.override_config( + 'dbapi2', + dict(analytics_enabled=True, analytics_sample_rate=0.5) + ): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + cursor = conn.cursor() + cursor.execute('SELECT 1') + rows = cursor.fetchall() + assert len(rows) == 1 + spans = writer.pop() + + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY), 0.5) + + def test_analytics_without_rate(self): + with self.override_config( + 'dbapi2', + dict(analytics_enabled=True) + ): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + cursor = conn.cursor() + cursor.execute('SELECT 1') + rows = cursor.fetchall() + assert len(rows) == 1 + spans = writer.pop() + + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY), 1.0) + + +class TestMysqlPatch(MySQLCore, BaseTracerTestCase): + """Ensures MysqlDB is properly patched""" + + def _connect_with_kwargs(self): + return MySQLdb.Connect(**{ + 'host': MYSQL_CONFIG['host'], + 'user': MYSQL_CONFIG['user'], + 'passwd': MYSQL_CONFIG['password'], + 'db': MYSQL_CONFIG['database'], + 'port': MYSQL_CONFIG['port'], + }) + + def _get_conn_tracer(self): + if not self.conn: + self.conn = self._connect_with_kwargs() + self.conn.ping() + # Ensure that the default pin is there, with its default value + pin = Pin.get_from(self.conn) + assert pin + assert pin.service == 'mysql' + # Customize the service + # we have to apply it on the existing one since new one won't inherit `app` + pin.clone(service=self.TEST_SERVICE, tracer=self.tracer).onto(self.conn) + + return self.conn, self.tracer + + def _get_conn_tracer_with_positional_args(self): + if not self.conn: + self.conn = MySQLdb.Connect( + MYSQL_CONFIG['host'], + MYSQL_CONFIG['user'], + MYSQL_CONFIG['password'], + MYSQL_CONFIG['database'], + MYSQL_CONFIG['port'], + ) + self.conn.ping() + # Ensure that the default pin is there, with its default value + pin = Pin.get_from(self.conn) + assert pin + assert pin.service == 'mysql' + # Customize the service + # we have to apply it on the existing one since new one won't inherit `app` + pin.clone(service=self.TEST_SERVICE, tracer=self.tracer).onto(self.conn) + + return self.conn, self.tracer + + def test_patch_unpatch(self): + unpatch() + # assert we start unpatched + conn = self._connect_with_kwargs() + assert not Pin.get_from(conn) + conn.close() + + patch() + try: + writer = self.tracer.writer + conn = self._connect_with_kwargs() + pin = Pin.get_from(conn) + assert pin + pin.clone(service=self.TEST_SERVICE, tracer=self.tracer).onto(conn) + conn.ping() + + cursor = conn.cursor() + cursor.execute('SELECT 1') + rows = cursor.fetchall() + assert len(rows) == 1 + spans = writer.pop() + assert len(spans) == 1 + + span = spans[0] + assert span.service == self.TEST_SERVICE + assert span.name == 'mysql.query' + assert span.span_type == 'sql' + assert span.error == 0 + assert span.get_metric('out.port') == 3306 + assert_dict_issuperset(span.meta, { + 'out.host': u'127.0.0.1', + 'db.name': u'test', + 'db.user': u'test', + }) + assert span.get_tag('sql.query') is None + + finally: + unpatch() + + # assert we finish unpatched + conn = self._connect_with_kwargs() + assert not Pin.get_from(conn) + conn.close() + + patch() diff --git a/tests/contrib/patch.py b/tests/contrib/patch.py new file mode 100644 index 0000000000..e9d7361778 --- /dev/null +++ b/tests/contrib/patch.py @@ -0,0 +1,645 @@ +import functools +import importlib +import sys +import unittest + +from ddtrace.vendor import wrapt + +from tests.subprocesstest import SubprocessTestCase, run_in_subprocess + + +class PatchMixin(unittest.TestCase): + """ + TestCase for testing the patch logic of an integration. + """ + def module_imported(self, modname): + """ + Returns whether a module is imported or not. + """ + return modname in sys.modules + + def assert_module_imported(self, modname): + """ + Asserts that the module, given its name is imported. + """ + assert self.module_imported(modname), '{} module not imported'.format(modname) + + def assert_not_module_imported(self, modname): + """ + Asserts that the module, given its name is not imported. + """ + assert not self.module_imported(modname), '{} module is imported'.format(modname) + + def is_wrapped(self, obj): + return isinstance(obj, wrapt.ObjectProxy) + + def assert_wrapped(self, obj): + """ + Helper to assert that a given object is properly wrapped by wrapt. + """ + self.assertTrue(self.is_wrapped(obj), '{} is not wrapped'.format(obj)) + + def assert_not_wrapped(self, obj): + """ + Helper to assert that a given object is not wrapped by wrapt. + """ + self.assertFalse(self.is_wrapped(obj), '{} is wrapped'.format(obj)) + + def assert_not_double_wrapped(self, obj): + """ + Helper to assert that a given already wrapped object is not wrapped twice. + + This is useful for asserting idempotence. + """ + self.assert_wrapped(obj) + self.assert_not_wrapped(obj.__wrapped__) + + +def raise_if_no_attrs(f): + """ + A helper for PatchTestCase test methods that will check if there are any + modules to use else raise a NotImplementedError. + + :param f: method to wrap with a check + """ + required_attrs = [ + '__module_name__', + '__integration_name__', + '__unpatch_func__', + ] + + @functools.wraps(f) + def checked_method(self, *args, **kwargs): + for attr in required_attrs: + if not getattr(self, attr): + raise NotImplementedError(f.__doc__) + return f(self, *args, **kwargs) + return checked_method + + +class PatchTestCase(object): + """ + unittest or other test runners will pick up the base test case as a testcase + since it inherits from unittest.TestCase unless we wrap it with this empty + parent class. + """ + @run_in_subprocess + class Base(SubprocessTestCase, PatchMixin): + """Provides default test methods to be used for testing common integration patching logic. + Each test method provides a default implementation which will use the + provided attributes (described below). If the attributes are not + provided a NotImplementedError will be raised for each method that is + not overridden. + + Attributes: + __integration_name__ the name of the integration. + __module_name__ module which the integration patches. + __unpatch_func__ unpatch function from the integration. + + Example: + A simple implementation inheriting this TestCase looks like:: + + from ddtrace.contrib.redis import unpatch + + class RedisPatchTestCase(PatchTestCase.Base): + __integration_name__ = 'redis' + __module_name__ 'redis' + __unpatch_func__ = unpatch + + def assert_module_patched(self, redis): + # assert patching logic + # self.assert_wrapped(...) + + def assert_not_module_patched(self, redis): + # assert patching logic + # self.assert_not_wrapped(...) + + def assert_not_module_double_patched(self, redis): + # assert patching logic + # self.assert_not_double_wrapped(...) + + # override this particular test case + def test_patch_import(self): + # custom patch before import check + + # optionally override other test methods... + """ + __integration_name__ = None + __module_name__ = None + __unpatch_func__ = None + + def __init__(self, *args, **kwargs): + # DEV: Python will wrap a function when assigning to a class as an + # attribute. So we cannot call self.__unpatch_func__() as the `self` + # reference will be passed as an argument. + # So we need to unwrap the function and then wrap it in a function + # that will absorb the unpatch function. + if self.__unpatch_func__: + unpatch_func = self.__unpatch_func__.__func__ + + def unpatch(): + unpatch_func() + self.__unpatch_func__ = unpatch + super(PatchTestCase.Base, self).__init__(*args, **kwargs) + + def patch(self, *args, **kwargs): + from ddtrace import patch + return patch(*args, **kwargs) + + def _gen_test_attrs(self, ops): + """ + A helper to return test names for tests given a list of different + operations. + :return: + """ + from itertools import permutations + return [ + 'test_{}'.format('_'.join(c)) for c in permutations(ops, len(ops)) + ] + + def test_verify_test_coverage(self): + """ + This TestCase should cover a variety of combinations of importing, + patching and unpatching. + """ + tests = [] + tests += self._gen_test_attrs(['import', 'patch']) + tests += self._gen_test_attrs(['import', 'patch', 'patch']) + tests += self._gen_test_attrs(['import', 'patch', 'unpatch']) + tests += self._gen_test_attrs(['import', 'patch', 'unpatch', 'unpatch']) + + # TODO: it may be possible to generate test cases dynamically. For + # now focus on the important ones. + test_ignore = set([ + 'test_unpatch_import_patch', + 'test_import_unpatch_patch_unpatch', + 'test_import_unpatch_unpatch_patch', + 'test_patch_import_unpatch_unpatch', + 'test_unpatch_import_patch_unpatch', + 'test_unpatch_import_unpatch_patch', + 'test_unpatch_patch_import_unpatch', + 'test_unpatch_patch_unpatch_import', + 'test_unpatch_unpatch_import_patch', + 'test_unpatch_unpatch_patch_import', + ]) + + for test_attr in tests: + if test_attr in test_ignore: + continue + assert hasattr(self, test_attr), '{} not found in expected test attrs'.format(test_attr) + + def assert_module_patched(self, module): + """ + Asserts that the given module is patched. + + For example, the redis integration patches the following methods: + - redis.StrictRedis.execute_command + - redis.StrictRedis.pipeline + - redis.Redis.pipeline + - redis.client.BasePipeline.execute + - redis.client.BasePipeline.immediate_execute_command + + So an appropriate assert_module_patched would look like:: + + def assert_module_patched(self, redis): + self.assert_wrapped(redis.StrictRedis.execute_command) + self.assert_wrapped(redis.StrictRedis.pipeline) + self.assert_wrapped(redis.Redis.pipeline) + self.assert_wrapped(redis.client.BasePipeline.execute) + self.assert_wrapped(redis.client.BasePipeline.immediate_execute_command) + + :param module: module to check + :return: None + """ + raise NotImplementedError(self.assert_module_patched.__doc__) + + def assert_not_module_patched(self, module): + """ + Asserts that the given module is not patched. + + For example, the redis integration patches the following methods: + - redis.StrictRedis.execute_command + - redis.StrictRedis.pipeline + - redis.Redis.pipeline + - redis.client.BasePipeline.execute + - redis.client.BasePipeline.immediate_execute_command + + So an appropriate assert_not_module_patched would look like:: + + def assert_not_module_patched(self, redis): + self.assert_not_wrapped(redis.StrictRedis.execute_command) + self.assert_not_wrapped(redis.StrictRedis.pipeline) + self.assert_not_wrapped(redis.Redis.pipeline) + self.assert_not_wrapped(redis.client.BasePipeline.execute) + self.assert_not_wrapped(redis.client.BasePipeline.immediate_execute_command) + + :param module: + :return: None + """ + raise NotImplementedError(self.assert_not_module_patched.__doc__) + + def assert_not_module_double_patched(self, module): + """ + Asserts that the given module is not patched twice. + + For example, the redis integration patches the following methods: + - redis.StrictRedis.execute_command + - redis.StrictRedis.pipeline + - redis.Redis.pipeline + - redis.client.BasePipeline.execute + - redis.client.BasePipeline.immediate_execute_command + + So an appropriate assert_not_module_double_patched would look like:: + + def assert_not_module_double_patched(self, redis): + self.assert_not_double_wrapped(redis.StrictRedis.execute_command) + self.assert_not_double_wrapped(redis.StrictRedis.pipeline) + self.assert_not_double_wrapped(redis.Redis.pipeline) + self.assert_not_double_wrapped(redis.client.BasePipeline.execute) + self.assert_not_double_wrapped(redis.client.BasePipeline.immediate_execute_command) + + :param module: module to check + :return: None + """ + raise NotImplementedError(self.assert_not_module_double_patched.__doc__) + + @raise_if_no_attrs + def test_import_patch(self): + """ + The integration should test that each class, method or function that + is to be patched is in fact done so when ddtrace.patch() is called + before the module is imported. + + For example: + + an appropriate ``test_patch_import`` would be:: + + import redis + ddtrace.patch(redis=True) + self.assert_module_patched(redis) + """ + self.assert_not_module_imported(self.__module_name__) + module = importlib.import_module(self.__module_name__) + self.assert_not_module_patched(module) + self.patch(**{self.__integration_name__: True}) + self.assert_module_patched(module) + + @raise_if_no_attrs + def test_patch_import(self): + """ + The integration should test that each class, method or function that + is to be patched is in fact done so when ddtrace.patch() is called + after the module is imported. + + an appropriate ``test_patch_import`` would be:: + + import redis + ddtrace.patch(redis=True) + self.assert_module_patched(redis) + """ + self.assert_not_module_imported(self.__module_name__) + module = importlib.import_module(self.__module_name__) + self.patch(**{self.__integration_name__: True}) + self.assert_module_patched(module) + + @raise_if_no_attrs + def test_import_patch_patch(self): + """ + Proper testing should be done to ensure that multiple calls to the + integration.patch() method are idempotent. That is, that the + integration does not patch its library more than once. + + An example for what this might look like for the redis integration:: + + import redis + ddtrace.patch(redis=True) + self.assert_module_patched(redis) + ddtrace.patch(redis=True) + self.assert_not_module_double_patched(redis) + """ + self.assert_not_module_imported(self.__module_name__) + self.patch(**{self.__module_name__: True}) + module = importlib.import_module(self.__module_name__) + self.assert_module_patched(module) + self.patch(**{self.__module_name__: True}) + self.assert_not_module_double_patched(module) + + @raise_if_no_attrs + def test_patch_import_patch(self): + """ + Proper testing should be done to ensure that multiple calls to the + integration.patch() method are idempotent. That is, that the + integration does not patch its library more than once. + + An example for what this might look like for the redis integration:: + + ddtrace.patch(redis=True) + import redis + self.assert_module_patched(redis) + ddtrace.patch(redis=True) + self.assert_not_module_double_patched(redis) + """ + self.assert_not_module_imported(self.__module_name__) + self.patch(**{self.__module_name__: True}) + module = importlib.import_module(self.__module_name__) + self.assert_module_patched(module) + self.patch(**{self.__module_name__: True}) + self.assert_not_module_double_patched(module) + + @raise_if_no_attrs + def test_patch_patch_import(self): + """ + Proper testing should be done to ensure that multiple calls to the + integration.patch() method are idempotent. That is, that the + integration does not patch its library more than once. + + An example for what this might look like for the redis integration:: + + ddtrace.patch(redis=True) + ddtrace.patch(redis=True) + import redis + self.assert_not_double_wrapped(redis.StrictRedis.execute_command) + """ + self.assert_not_module_imported(self.__module_name__) + self.patch(**{self.__module_name__: True}) + self.patch(**{self.__module_name__: True}) + module = importlib.import_module(self.__module_name__) + self.assert_module_patched(module) + self.assert_not_module_double_patched(module) + + @raise_if_no_attrs + def test_import_patch_unpatch_patch(self): + """ + To ensure that we can thoroughly test the installation/patching of + an integration we must be able to unpatch it and then subsequently + patch it again. + + For example:: + + import redis + from ddtrace.contrib.redis import unpatch + + ddtrace.patch(redis=True) + unpatch() + ddtrace.patch(redis=True) + self.assert_module_patched(redis) + """ + self.assert_not_module_imported(self.__module_name__) + module = importlib.import_module(self.__module_name__) + self.patch(**{self.__integration_name__: True}) + self.assert_module_patched(module) + self.__unpatch_func__() + self.assert_not_module_patched(module) + self.patch(**{self.__integration_name__: True}) + self.assert_module_patched(module) + + @raise_if_no_attrs + def test_patch_import_unpatch_patch(self): + """ + To ensure that we can thoroughly test the installation/patching of + an integration we must be able to unpatch it and then subsequently + patch it again. + + For example:: + + from ddtrace.contrib.redis import unpatch + + ddtrace.patch(redis=True) + import redis + unpatch() + ddtrace.patch(redis=True) + self.assert_module_patched(redis) + """ + self.assert_not_module_imported(self.__module_name__) + self.patch(**{self.__integration_name__: True}) + module = importlib.import_module(self.__module_name__) + self.assert_module_patched(module) + self.__unpatch_func__() + self.assert_not_module_patched(module) + self.patch(**{self.__integration_name__: True}) + self.assert_module_patched(module) + + @raise_if_no_attrs + def test_patch_unpatch_import_patch(self): + """ + To ensure that we can thoroughly test the installation/patching of + an integration we must be able to unpatch it and then subsequently + patch it again. + + For example:: + + from ddtrace.contrib.redis import unpatch + + ddtrace.patch(redis=True) + import redis + unpatch() + ddtrace.patch(redis=True) + self.assert_module_patched(redis) + """ + self.assert_not_module_imported(self.__module_name__) + self.patch(**{self.__integration_name__: True}) + self.__unpatch_func__() + module = importlib.import_module(self.__module_name__) + self.assert_not_module_patched(module) + self.patch(**{self.__integration_name__: True}) + self.assert_module_patched(module) + + @raise_if_no_attrs + def test_patch_unpatch_patch_import(self): + """ + To ensure that we can thoroughly test the installation/patching of + an integration we must be able to unpatch it and then subsequently + patch it again. + + For example:: + + from ddtrace.contrib.redis import unpatch + + ddtrace.patch(redis=True) + unpatch() + ddtrace.patch(redis=True) + import redis + self.assert_module_patched(redis) + """ + self.assert_not_module_imported(self.__module_name__) + self.patch(**{self.__integration_name__: True}) + self.__unpatch_func__() + self.patch(**{self.__integration_name__: True}) + module = importlib.import_module(self.__module_name__) + self.assert_module_patched(module) + + @raise_if_no_attrs + def test_unpatch_patch_import(self): + """ + Make sure unpatching before patch does not break patching. + + For example:: + + from ddtrace.contrib.redis import unpatch + unpatch() + ddtrace.patch(redis=True) + import redis + self.assert_not_module_patched(redis) + """ + self.assert_not_module_imported(self.__module_name__) + self.__unpatch_func__() + self.patch(**{self.__integration_name__: True}) + module = importlib.import_module(self.__module_name__) + self.assert_module_patched(module) + + @raise_if_no_attrs + def test_patch_unpatch_import(self): + """ + To ensure that we can thoroughly test the installation/patching of + an integration we must be able to unpatch it before importing the + library. + + For example:: + + ddtrace.patch(redis=True) + from ddtrace.contrib.redis import unpatch + unpatch() + import redis + self.assert_not_module_patched(redis) + """ + self.assert_not_module_imported(self.__module_name__) + self.patch(**{self.__integration_name__: True}) + self.__unpatch_func__() + module = importlib.import_module(self.__module_name__) + self.assert_not_module_patched(module) + + @raise_if_no_attrs + def test_import_unpatch_patch(self): + """ + To ensure that we can thoroughly test the installation/patching of + an integration we must be able to unpatch it before patching. + + For example:: + + import redis + from ddtrace.contrib.redis import unpatch + ddtrace.patch(redis=True) + unpatch() + self.assert_not_module_patched(redis) + """ + self.assert_not_module_imported(self.__module_name__) + module = importlib.import_module(self.__module_name__) + self.__unpatch_func__() + self.assert_not_module_patched(module) + self.patch(**{self.__integration_name__: True}) + self.assert_module_patched(module) + + @raise_if_no_attrs + def test_import_patch_unpatch(self): + """ + To ensure that we can thoroughly test the installation/patching of + an integration we must be able to unpatch it after patching. + + For example:: + + import redis + from ddtrace.contrib.redis import unpatch + ddtrace.patch(redis=True) + unpatch() + self.assert_not_module_patched(redis) + """ + self.assert_not_module_imported(self.__module_name__) + module = importlib.import_module(self.__module_name__) + self.assert_not_module_patched(module) + self.patch(**{self.__integration_name__: True}) + self.assert_module_patched(module) + self.__unpatch_func__() + self.assert_not_module_patched(module) + + @raise_if_no_attrs + def test_patch_import_unpatch(self): + """ + To ensure that we can thoroughly test the installation/patching of + an integration we must be able to unpatch it after patching. + + For example:: + + from ddtrace.contrib.redis import unpatch + ddtrace.patch(redis=True) + import redis + unpatch() + self.assert_not_module_patched(redis) + """ + self.assert_not_module_imported(self.__module_name__) + self.patch(**{self.__integration_name__: True}) + module = importlib.import_module(self.__module_name__) + self.assert_module_patched(module) + self.__unpatch_func__() + self.assert_not_module_patched(module) + + @raise_if_no_attrs + def test_import_patch_unpatch_unpatch(self): + """ + Unpatching twice should be a no-op. + + For example:: + + import redis + from ddtrace.contrib.redis import unpatch + + ddtrace.patch(redis=True) + self.assert_module_patched(redis) + unpatch() + self.assert_not_module_patched(redis) + unpatch() + self.assert_not_module_patched(redis) + """ + self.assert_not_module_imported(self.__module_name__) + module = importlib.import_module(self.__module_name__) + self.patch(**{self.__integration_name__: True}) + self.assert_module_patched(module) + self.__unpatch_func__() + self.assert_not_module_patched(module) + self.__unpatch_func__() + self.assert_not_module_patched(module) + + @raise_if_no_attrs + def test_patch_unpatch_import_unpatch(self): + """ + Unpatching twice should be a no-op. + + For example:: + + from ddtrace.contrib.redis import unpatch + + ddtrace.patch(redis=True) + unpatch() + import redis + self.assert_not_module_patched(redis) + unpatch() + self.assert_not_module_patched(redis) + """ + self.assert_not_module_imported(self.__module_name__) + self.patch(**{self.__integration_name__: True}) + self.__unpatch_func__() + module = importlib.import_module(self.__module_name__) + self.assert_not_module_patched(module) + self.__unpatch_func__() + self.assert_not_module_patched(module) + + @raise_if_no_attrs + def test_patch_unpatch_unpatch_import(self): + """ + Unpatching twice should be a no-op. + + For example:: + + from ddtrace.contrib.redis import unpatch + + ddtrace.patch(redis=True) + unpatch() + unpatch() + import redis + self.assert_not_module_patched(redis) + """ + self.assert_not_module_imported(self.__module_name__) + self.patch(**{self.__integration_name__: True}) + self.__unpatch_func__() + self.__unpatch_func__() + module = importlib.import_module(self.__module_name__) + self.assert_not_module_patched(module) diff --git a/tests/contrib/psycopg/__init__.py b/tests/contrib/psycopg/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/psycopg/test_psycopg.py b/tests/contrib/psycopg/test_psycopg.py new file mode 100644 index 0000000000..2955b0ec36 --- /dev/null +++ b/tests/contrib/psycopg/test_psycopg.py @@ -0,0 +1,343 @@ +# stdlib +import time + +# 3p +import psycopg2 +from psycopg2 import extensions +from psycopg2 import extras + +from unittest import skipIf + +# project +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.contrib.psycopg import connection_factory +from ddtrace.contrib.psycopg.patch import patch, unpatch, PSYCOPG2_VERSION +from ddtrace import Pin + +# testing +from tests.opentracer.utils import init_tracer +from tests.contrib.config import POSTGRES_CONFIG +from ...base import BaseTracerTestCase +from ...utils.tracer import DummyTracer + + +if PSYCOPG2_VERSION >= (2, 7): + from psycopg2.sql import SQL + +TEST_PORT = POSTGRES_CONFIG['port'] + + +class PsycopgCore(BaseTracerTestCase): + + # default service + TEST_SERVICE = 'postgres' + + def setUp(self): + super(PsycopgCore, self).setUp() + + patch() + + def tearDown(self): + super(PsycopgCore, self).tearDown() + + unpatch() + + def _get_conn(self, service=None): + conn = psycopg2.connect(**POSTGRES_CONFIG) + pin = Pin.get_from(conn) + if pin: + pin.clone(service=service, tracer=self.tracer).onto(conn) + + return conn + + def test_patch_unpatch(self): + # Test patch idempotence + patch() + patch() + + service = 'fo' + + conn = self._get_conn(service=service) + conn.cursor().execute("""select 'blah'""") + self.assert_structure(dict(name='postgres.query', service=service)) + self.reset() + + # Test unpatch + unpatch() + + conn = self._get_conn() + conn.cursor().execute("""select 'blah'""") + self.assert_has_no_spans() + + # Test patch again + patch() + + conn = self._get_conn(service=service) + conn.cursor().execute("""select 'blah'""") + self.assert_structure(dict(name='postgres.query', service=service)) + + def assert_conn_is_traced(self, db, service): + + # ensure the trace pscyopg client doesn't add non-standard + # methods + try: + db.execute("""select 'foobar'""") + except AttributeError: + pass + + # Ensure we can run a query and it's correctly traced + q = """select 'foobarblah'""" + + start = time.time() + cursor = db.cursor() + res = cursor.execute(q) + self.assertIsNone(res) + rows = cursor.fetchall() + end = time.time() + + self.assertEquals(rows, [('foobarblah',)]) + + self.assert_structure( + dict(name='postgres.query', resource=q, service=service, error=0, span_type='sql'), + ) + root = self.get_root_span() + self.assertIsNone(root.get_tag('sql.query')) + assert start <= root.start <= end + assert root.duration <= end - start + # confirm analytics disabled by default + self.reset() + + # run a query with an error and ensure all is well + q = """select * from some_non_existant_table""" + cur = db.cursor() + try: + cur.execute(q) + except Exception: + pass + else: + assert 0, 'should have an error' + + self.assert_structure( + dict( + name='postgres.query', + resource=q, + service=service, + error=1, + span_type='sql', + meta={ + 'out.host': '127.0.0.1', + }, + metrics={ + 'out.port': TEST_PORT, + }, + ), + ) + root = self.get_root_span() + self.assertIsNone(root.get_tag('sql.query')) + self.reset() + + def test_opentracing_propagation(self): + # ensure OpenTracing plays well with our integration + query = """SELECT 'tracing'""" + + db = self._get_conn() + ot_tracer = init_tracer('psycopg-svc', self.tracer) + + with ot_tracer.start_active_span('db.access'): + cursor = db.cursor() + cursor.execute(query) + rows = cursor.fetchall() + + self.assertEquals(rows, [('tracing',)]) + + self.assert_structure( + dict(name='db.access', service='psycopg-svc'), + ( + dict(name='postgres.query', resource=query, service='postgres', error=0, span_type='sql'), + ), + ) + self.reset() + + with self.override_config('dbapi2', dict(trace_fetch_methods=True)): + db = self._get_conn() + ot_tracer = init_tracer('psycopg-svc', self.tracer) + + with ot_tracer.start_active_span('db.access'): + cursor = db.cursor() + cursor.execute(query) + rows = cursor.fetchall() + + self.assertEquals(rows, [('tracing',)]) + + self.assert_structure( + dict(name='db.access', service='psycopg-svc'), + ( + dict(name='postgres.query', resource=query, service='postgres', error=0, span_type='sql'), + dict(name='postgres.query.fetchall', resource=query, service='postgres', error=0, span_type='sql'), + ), + ) + + @skipIf(PSYCOPG2_VERSION < (2, 5), 'context manager not available in psycopg2==2.4') + def test_cursor_ctx_manager(self): + # ensure cursors work with context managers + # https://github.com/DataDog/dd-trace-py/issues/228 + conn = self._get_conn() + t = type(conn.cursor()) + with conn.cursor() as cur: + assert t == type(cur), '{} != {}'.format(t, type(cur)) + cur.execute(query="""select 'blah'""") + rows = cur.fetchall() + assert len(rows) == 1, rows + assert rows[0][0] == 'blah' + + self.assert_structure( + dict(name='postgres.query'), + ) + + def test_disabled_execute(self): + conn = self._get_conn() + self.tracer.enabled = False + # these calls were crashing with a previous version of the code. + conn.cursor().execute(query="""select 'blah'""") + conn.cursor().execute("""select 'blah'""") + self.assert_has_no_spans() + + @skipIf(PSYCOPG2_VERSION < (2, 5), '_json is not available in psycopg2==2.4') + def test_manual_wrap_extension_types(self): + conn = self._get_conn() + # NOTE: this will crash if it doesn't work. + # _ext.register_type(_ext.UUID, conn_or_curs) + # TypeError: argument 2 must be a connection, cursor or None + extras.register_uuid(conn_or_curs=conn) + + # NOTE: this will crash if it doesn't work. + # _ext.register_default_json(conn) + # TypeError: argument 2 must be a connection, cursor or None + extras.register_default_json(conn) + + def test_manual_wrap_extension_adapt(self): + conn = self._get_conn() + # NOTE: this will crash if it doesn't work. + # items = _ext.adapt([1, 2, 3]) + # items.prepare(conn) + # TypeError: argument 2 must be a connection, cursor or None + items = extensions.adapt([1, 2, 3]) + items.prepare(conn) + + # NOTE: this will crash if it doesn't work. + # binary = _ext.adapt(b'12345) + # binary.prepare(conn) + # TypeError: argument 2 must be a connection, cursor or None + binary = extensions.adapt(b'12345') + binary.prepare(conn) + + @skipIf(PSYCOPG2_VERSION < (2, 7), 'quote_ident not available in psycopg2<2.7') + def test_manual_wrap_extension_quote_ident(self): + from ddtrace import patch_all + patch_all() + from psycopg2.extensions import quote_ident + + # NOTE: this will crash if it doesn't work. + # TypeError: argument 2 must be a connection or a cursor + conn = psycopg2.connect(**POSTGRES_CONFIG) + quote_ident('foo', conn) + + def test_connect_factory(self): + services = ['db', 'another'] + for service in services: + conn = self._get_conn(service=service) + self.assert_conn_is_traced(conn, service) + + # ensure we have the service types + service_meta = self.tracer.writer.pop_services() + expected = {} + self.assertEquals(service_meta, expected) + + def test_commit(self): + conn = self._get_conn() + conn.commit() + + self.assert_structure( + dict(name='postgres.connection.commit', service=self.TEST_SERVICE) + ) + + def test_rollback(self): + conn = self._get_conn() + conn.rollback() + + self.assert_structure( + dict(name='postgres.connection.rollback', service=self.TEST_SERVICE) + ) + + @skipIf(PSYCOPG2_VERSION < (2, 7), 'SQL string composition not available in psycopg2<2.7') + def test_composed_query(self): + """ Checks whether execution of composed SQL string is traced """ + query = SQL(' union all ').join( + [SQL("""select 'one' as x"""), + SQL("""select 'two' as x""")]) + db = self._get_conn() + + with db.cursor() as cur: + cur.execute(query=query) + rows = cur.fetchall() + assert len(rows) == 2, rows + assert rows[0][0] == 'one' + assert rows[1][0] == 'two' + + self.assert_structure( + dict(name='postgres.query', resource=query.as_string(db)), + ) + + def test_analytics_default(self): + conn = self._get_conn() + conn.cursor().execute("""select 'blah'""") + + spans = self.get_spans() + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertIsNone(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + def test_analytics_with_rate(self): + with self.override_config( + 'dbapi2', + dict(analytics_enabled=True, analytics_sample_rate=0.5) + ): + conn = self._get_conn() + conn.cursor().execute("""select 'blah'""") + + spans = self.get_spans() + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY), 0.5) + + def test_analytics_without_rate(self): + with self.override_config( + 'dbapi2', + dict(analytics_enabled=True) + ): + conn = self._get_conn() + conn.cursor().execute("""select 'blah'""") + + spans = self.get_spans() + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY), 1.0) + + +def test_backwards_compatibilty_v3(): + tracer = DummyTracer() + factory = connection_factory(tracer, service='my-postgres-db') + conn = psycopg2.connect(connection_factory=factory, **POSTGRES_CONFIG) + conn.cursor().execute("""select 'blah'""") + + +@skipIf(PSYCOPG2_VERSION < (2, 7), 'quote_ident not available in psycopg2<2.7') +def test_manual_wrap_extension_quote_ident_standalone(): + from ddtrace import patch_all + patch_all() + from psycopg2.extensions import quote_ident + + # NOTE: this will crash if it doesn't work. + # TypeError: argument 2 must be a connection or a cursor + conn = psycopg2.connect(**POSTGRES_CONFIG) + quote_ident('foo', conn) diff --git a/tests/contrib/pylibmc/__init__.py b/tests/contrib/pylibmc/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/pylibmc/test.py b/tests/contrib/pylibmc/test.py new file mode 100644 index 0000000000..b9444f0e42 --- /dev/null +++ b/tests/contrib/pylibmc/test.py @@ -0,0 +1,320 @@ +# stdlib +import time +from unittest.case import SkipTest + +# 3p +import pylibmc + +# project +from ddtrace import Pin +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.contrib.pylibmc import TracedClient +from ddtrace.contrib.pylibmc.patch import patch, unpatch +from ddtrace.ext import memcached + +# testing +from ...opentracer.utils import init_tracer +from ...contrib.config import MEMCACHED_CONFIG as cfg +from ...base import BaseTracerTestCase + + +class PylibmcCore(object): + """Core of the test suite for pylibmc + + Shared tests between the patch and TracedClient interface. + Will be merge back to a single class once the TracedClient is deprecated. + """ + + TEST_SERVICE = memcached.SERVICE + + def get_client(self): + # Implement me + pass + + def test_upgrade(self): + raise SkipTest('upgrade memcached') + # add tests for touch, cas, gets etc + + def test_append_prepend(self): + client, tracer = self.get_client() + # test + start = time.time() + client.set('a', 'crow') + client.prepend('a', 'holy ') + client.append('a', '!') + + # FIXME[matt] there is a bug in pylibmc & python 3 (perhaps with just + # some versions of the libmemcache?) where append/prepend are replaced + # with get. our traced versions do the right thing, so skipping this + # test. + try: + assert client.get('a') == 'holy crow!' + except AssertionError: + pass + + end = time.time() + # verify spans + spans = tracer.writer.pop() + for s in spans: + self._verify_cache_span(s, start, end) + expected_resources = sorted(['append', 'prepend', 'get', 'set']) + resources = sorted(s.resource for s in spans) + assert expected_resources == resources + + def test_incr_decr(self): + client, tracer = self.get_client() + # test + start = time.time() + client.set('a', 1) + client.incr('a', 2) + client.decr('a', 1) + v = client.get('a') + assert v == 2 + end = time.time() + # verify spans + spans = tracer.writer.pop() + for s in spans: + self._verify_cache_span(s, start, end) + expected_resources = sorted(['get', 'set', 'incr', 'decr']) + resources = sorted(s.resource for s in spans) + assert expected_resources == resources + + def test_incr_decr_ot(self): + """OpenTracing version of test_incr_decr.""" + client, tracer = self.get_client() + ot_tracer = init_tracer('memcached', tracer) + + start = time.time() + with ot_tracer.start_active_span('mc_ops'): + client.set('a', 1) + client.incr('a', 2) + client.decr('a', 1) + v = client.get('a') + assert v == 2 + end = time.time() + + # verify spans + spans = tracer.writer.pop() + ot_span = spans[0] + + assert ot_span.name == 'mc_ops' + + for s in spans[1:]: + assert s.parent_id == ot_span.span_id + self._verify_cache_span(s, start, end) + expected_resources = sorted(['get', 'set', 'incr', 'decr']) + resources = sorted(s.resource for s in spans[1:]) + assert expected_resources == resources + + def test_clone(self): + # ensure cloned connections are traced as well. + client, tracer = self.get_client() + cloned = client.clone() + start = time.time() + cloned.get('a') + end = time.time() + spans = tracer.writer.pop() + for s in spans: + self._verify_cache_span(s, start, end) + expected_resources = ['get'] + resources = sorted(s.resource for s in spans) + assert expected_resources == resources + + def test_get_set_multi(self): + client, tracer = self.get_client() + # test + start = time.time() + client.set_multi({'a': 1, 'b': 2}) + out = client.get_multi(['a', 'c']) + assert out == {'a': 1} + client.delete_multi(['a', 'c']) + end = time.time() + # verify + spans = tracer.writer.pop() + for s in spans: + self._verify_cache_span(s, start, end) + expected_resources = sorted(['get_multi', 'set_multi', 'delete_multi']) + resources = sorted(s.resource for s in spans) + assert expected_resources == resources + + def test_get_set_multi_prefix(self): + client, tracer = self.get_client() + # test + start = time.time() + client.set_multi({'a': 1, 'b': 2}, key_prefix='foo') + out = client.get_multi(['a', 'c'], key_prefix='foo') + assert out == {'a': 1} + client.delete_multi(['a', 'c'], key_prefix='foo') + end = time.time() + # verify + spans = tracer.writer.pop() + for s in spans: + self._verify_cache_span(s, start, end) + assert s.get_tag('memcached.query') == '%s foo' % s.resource + expected_resources = sorted(['get_multi', 'set_multi', 'delete_multi']) + resources = sorted(s.resource for s in spans) + assert expected_resources == resources + + def test_get_set_delete(self): + client, tracer = self.get_client() + # test + k = u'cafe' + v = 'val-foo' + start = time.time() + client.delete(k) # just in case + out = client.get(k) + assert out is None, out + client.set(k, v) + out = client.get(k) + assert out == v + end = time.time() + # verify + spans = tracer.writer.pop() + for s in spans: + self._verify_cache_span(s, start, end) + assert s.get_tag('memcached.query') == '%s %s' % (s.resource, k) + expected_resources = sorted(['get', 'get', 'delete', 'set']) + resources = sorted(s.resource for s in spans) + assert expected_resources == resources + + def _verify_cache_span(self, s, start, end): + assert s.start > start + assert s.start + s.duration < end + assert s.service == self.TEST_SERVICE + assert s.span_type == 'cache' + assert s.name == 'memcached.cmd' + assert s.get_tag('out.host') == cfg['host'] + assert s.get_metric('out.port') == cfg['port'] + + def test_analytics_default(self): + client, tracer = self.get_client() + client.set('a', 'crow') + + spans = self.get_spans() + self.assertEqual(len(spans), 1) + self.assertIsNone(spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + def test_analytics_with_rate(self): + with self.override_config( + 'pylibmc', + dict(analytics_enabled=True, analytics_sample_rate=0.5) + ): + client, tracer = self.get_client() + client.set('a', 'crow') + + spans = self.get_spans() + self.assertEqual(len(spans), 1) + self.assertEqual(spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY), 0.5) + + def test_analytics_without_rate(self): + with self.override_config( + 'pylibmc', + dict(analytics_enabled=True) + ): + client, tracer = self.get_client() + client.set('a', 'crow') + + spans = self.get_spans() + self.assertEqual(len(spans), 1) + self.assertEqual(spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY), 1.0) + + def test_disabled(self): + """ + Ensure client works when the tracer is disabled + """ + client, tracer = self.get_client() + try: + tracer.enabled = False + + client.set('a', 'crow') + + spans = self.get_spans() + assert len(spans) == 0 + finally: + tracer.enabled = True + + +class TestPylibmcLegacy(BaseTracerTestCase, PylibmcCore): + """Test suite for the tracing of pylibmc with the legacy TracedClient interface""" + + TEST_SERVICE = 'mc-legacy' + + def get_client(self): + url = '%s:%s' % (cfg['host'], cfg['port']) + raw_client = pylibmc.Client([url]) + raw_client.flush_all() + + client = TracedClient(raw_client, tracer=self.tracer, service=self.TEST_SERVICE) + return client, self.tracer + + +class TestPylibmcPatchDefault(BaseTracerTestCase, PylibmcCore): + """Test suite for the tracing of pylibmc with the default lib patching""" + + def setUp(self): + super(TestPylibmcPatchDefault, self).setUp() + patch() + + def tearDown(self): + unpatch() + super(TestPylibmcPatchDefault, self).tearDown() + + def get_client(self): + url = '%s:%s' % (cfg['host'], cfg['port']) + client = pylibmc.Client([url]) + client.flush_all() + + Pin.get_from(client).clone(tracer=self.tracer).onto(client) + + return client, self.tracer + + +class TestPylibmcPatch(TestPylibmcPatchDefault): + """Test suite for the tracing of pylibmc with a configured lib patching""" + + TEST_SERVICE = 'mc-custom-patch' + + def get_client(self): + client, tracer = TestPylibmcPatchDefault.get_client(self) + + Pin.get_from(client).clone(service=self.TEST_SERVICE).onto(client) + + return client, tracer + + def test_patch_unpatch(self): + url = '%s:%s' % (cfg['host'], cfg['port']) + + # Test patch idempotence + patch() + patch() + + client = pylibmc.Client([url]) + Pin.get_from(client).clone( + service=self.TEST_SERVICE, + tracer=self.tracer).onto(client) + + client.set('a', 1) + + spans = self.tracer.writer.pop() + assert spans, spans + assert len(spans) == 1 + + # Test unpatch + unpatch() + + client = pylibmc.Client([url]) + client.set('a', 1) + + spans = self.tracer.writer.pop() + assert not spans, spans + + # Test patch again + patch() + + client = pylibmc.Client([url]) + Pin(service=self.TEST_SERVICE, tracer=self.tracer).onto(client) + client.set('a', 1) + + spans = self.tracer.writer.pop() + assert spans, spans + assert len(spans) == 1 diff --git a/tests/contrib/pylons/__init__.py b/tests/contrib/pylons/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/pylons/app/__init__.py b/tests/contrib/pylons/app/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/pylons/app/controllers/__init__.py b/tests/contrib/pylons/app/controllers/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/pylons/app/controllers/root.py b/tests/contrib/pylons/app/controllers/root.py new file mode 100644 index 0000000000..f0fb71c24f --- /dev/null +++ b/tests/contrib/pylons/app/controllers/root.py @@ -0,0 +1,44 @@ +from pylons.controllers import WSGIController + +from ..lib.helpers import ExceptionWithCodeMethod, get_render_fn + + +class BaseController(WSGIController): + + def __call__(self, environ, start_response): + """Invoke the Controller""" + # WSGIController.__call__ dispatches to the Controller method + # the request is routed to. This routing information is + # available in environ['pylons.routes_dict'] + return WSGIController.__call__(self, environ, start_response) + + +class RootController(BaseController): + """Controller used for most tests""" + + def index(self): + return 'Hello World' + + def raise_exception(self): + raise Exception('Ouch!') + + def raise_wrong_code(self): + e = Exception('Ouch!') + e.code = 'wrong formatted code' + raise e + + def raise_code_method(self): + raise ExceptionWithCodeMethod('Ouch!') + + def raise_custom_code(self): + e = Exception('Ouch!') + e.code = '512' + raise e + + def render(self): + render = get_render_fn() + return render('/template.mako') + + def render_exception(self): + render = get_render_fn() + return render('/exception.mako') diff --git a/tests/contrib/pylons/app/lib/__init__.py b/tests/contrib/pylons/app/lib/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/pylons/app/lib/base.py b/tests/contrib/pylons/app/lib/base.py new file mode 100644 index 0000000000..0e9d09cfd0 --- /dev/null +++ b/tests/contrib/pylons/app/lib/base.py @@ -0,0 +1 @@ +# this file is required when Pylons calls the `legacy` module diff --git a/tests/contrib/pylons/app/lib/helpers.py b/tests/contrib/pylons/app/lib/helpers.py new file mode 100644 index 0000000000..769c2be942 --- /dev/null +++ b/tests/contrib/pylons/app/lib/helpers.py @@ -0,0 +1,29 @@ +from webhelpers import * # noqa + + +class ExceptionWithCodeMethod(Exception): + """Use case where the status code is defined by + the `code()` method. + """ + def __init__(self, message): + super(ExceptionWithCodeMethod, self).__init__(message) + + def code(): + pass + + +class AppGlobals(object): + """Object used to store application globals.""" + pass + + +def get_render_fn(): + """Re-import the function everytime so that double-patching + is correctly tested. + """ + try: + from pylons.templating import render_mako as render + except ImportError: + from pylons.templating import render + + return render diff --git a/tests/contrib/pylons/app/middleware.py b/tests/contrib/pylons/app/middleware.py new file mode 100644 index 0000000000..13fd8c6fbb --- /dev/null +++ b/tests/contrib/pylons/app/middleware.py @@ -0,0 +1,43 @@ +from webob import Request, Response + + +class ExceptionMiddleware(object): + """A middleware which raises an exception.""" + def __init__(self, app): + self.app = app + + def __call__(self, environ, start_response): + raise Exception('Middleware exception') + + +class ExceptionToSuccessMiddleware(object): + """A middleware which catches any exceptions that occur in a later + middleware and returns a successful request. + """ + def __init__(self, app): + self.app = app + + def __call__(self, environ, start_response): + req = Request(environ) + try: + response = req.get_response(self.app) + except Exception: + response = Response() + response.status_int = 200 + response.body = 'An error has been handled appropriately' + return response(environ, start_response) + + +class ExceptionToClientErrorMiddleware(object): + def __init__(self, app): + self.app = app + + def __call__(self, environ, start_response): + req = Request(environ) + try: + response = req.get_response(self.app) + except Exception: + response = Response() + response.status_int = 404 + response.body = 'An error has occured with proper client error handling' + return response(environ, start_response) diff --git a/tests/contrib/pylons/app/router.py b/tests/contrib/pylons/app/router.py new file mode 100644 index 0000000000..54ebd7e9ed --- /dev/null +++ b/tests/contrib/pylons/app/router.py @@ -0,0 +1,20 @@ +import os + +from routes import Mapper + + +def create_routes(): + """Change this function if you need to add more routes + to your Pylons test app. + """ + app_dir = os.path.dirname(os.path.abspath(__file__)) + controller_dir = os.path.join(app_dir, 'controllers') + routes = Mapper(directory=controller_dir) + routes.connect('/', controller='root', action='index') + routes.connect('/raise_exception', controller='root', action='raise_exception') + routes.connect('/raise_wrong_code', controller='root', action='raise_wrong_code') + routes.connect('/raise_custom_code', controller='root', action='raise_custom_code') + routes.connect('/raise_code_method', controller='root', action='raise_code_method') + routes.connect('/render', controller='root', action='render') + routes.connect('/render_exception', controller='root', action='render_exception') + return routes diff --git a/tests/contrib/pylons/app/templates/exception.mako b/tests/contrib/pylons/app/templates/exception.mako new file mode 100644 index 0000000000..370df1da38 --- /dev/null +++ b/tests/contrib/pylons/app/templates/exception.mako @@ -0,0 +1 @@ +${1/0} diff --git a/tests/contrib/pylons/app/templates/template.mako b/tests/contrib/pylons/app/templates/template.mako new file mode 100644 index 0000000000..cd0875583a --- /dev/null +++ b/tests/contrib/pylons/app/templates/template.mako @@ -0,0 +1 @@ +Hello world! diff --git a/tests/contrib/pylons/app/web.py b/tests/contrib/pylons/app/web.py new file mode 100644 index 0000000000..5e98f10ffd --- /dev/null +++ b/tests/contrib/pylons/app/web.py @@ -0,0 +1,41 @@ +import os + +from mako.lookup import TemplateLookup + +from pylons import config +from pylons.wsgiapp import PylonsApp + +from routes.middleware import RoutesMiddleware +from beaker.middleware import SessionMiddleware, CacheMiddleware + +from paste.registry import RegistryManager + +from .router import create_routes +from .lib.helpers import AppGlobals + + +def make_app(global_conf, full_stack=True, **app_conf): + # load Pylons environment + root = os.path.dirname(os.path.abspath(__file__)) + paths = dict( + templates=[os.path.join(root, 'templates')], + ) + config.init_app(global_conf, app_conf, paths=paths) + config['pylons.package'] = 'tests.contrib.pylons.app' + config['pylons.app_globals'] = AppGlobals() + + # set Pylons routes + config['routes.map'] = create_routes() + + # Create the Mako TemplateLookup, with the default auto-escaping + config['pylons.app_globals'].mako_lookup = TemplateLookup( + directories=paths['templates'], + ) + + # define a default middleware stack + app = PylonsApp() + app = RoutesMiddleware(app, config['routes.map']) + app = SessionMiddleware(app, config) + app = CacheMiddleware(app, config) + app = RegistryManager(app) + return app diff --git a/tests/contrib/pylons/test.ini b/tests/contrib/pylons/test.ini new file mode 100644 index 0000000000..ea5a165ce5 --- /dev/null +++ b/tests/contrib/pylons/test.ini @@ -0,0 +1,9 @@ +[DEFAULT] +debug = false + +[app:main] +use = call:tests.contrib.pylons.app.web:make_app +full_stack = true +cache_dir = %(here)s/.cache +beaker.session.key = helloworld +beaker.session.secret = somesecret diff --git a/tests/contrib/pylons/test_pylons.py b/tests/contrib/pylons/test_pylons.py new file mode 100644 index 0000000000..3bf903e01a --- /dev/null +++ b/tests/contrib/pylons/test_pylons.py @@ -0,0 +1,429 @@ +import os + +from routes import url_for +from paste import fixture +from paste.deploy import loadapp +import pytest + +from ddtrace import config +from ddtrace.ext import http, errors +from ddtrace.constants import SAMPLING_PRIORITY_KEY, ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.contrib.pylons import PylonsTraceMiddleware + +from tests.opentracer.utils import init_tracer +from ...base import BaseTracerTestCase +from ...utils import assert_span_http_status_code + + +class PylonsTestCase(BaseTracerTestCase): + """Pylons Test Controller that is used to test specific + cases defined in the Pylons controller. To test a new behavior, + add a new action in the `app.controllers.root` module. + """ + conf_dir = os.path.dirname(os.path.abspath(__file__)) + + def setUp(self): + super(PylonsTestCase, self).setUp() + # initialize a real traced Pylons app + wsgiapp = loadapp('config:test.ini', relative_to=PylonsTestCase.conf_dir) + self._wsgiapp = wsgiapp + app = PylonsTraceMiddleware(wsgiapp, self.tracer, service='web') + self.app = fixture.TestApp(app) + + def test_controller_exception(self): + """Ensure exceptions thrown in controllers can be handled. + + No error tags should be set in the span. + """ + from .app.middleware import ExceptionToSuccessMiddleware + wsgiapp = ExceptionToSuccessMiddleware(self._wsgiapp) + app = PylonsTraceMiddleware(wsgiapp, self.tracer, service='web') + + app = fixture.TestApp(app) + app.get(url_for(controller='root', action='raise_exception')) + + spans = self.tracer.writer.pop() + + assert spans, spans + assert len(spans) == 1 + span = spans[0] + + assert span.service == 'web' + assert span.resource == 'root.raise_exception' + assert span.error == 0 + assert span.get_tag(http.URL) == 'http://localhost:80/raise_exception' + assert_span_http_status_code(span, 200) + assert http.QUERY_STRING not in span.meta + assert span.get_tag(errors.ERROR_MSG) is None + assert span.get_tag(errors.ERROR_TYPE) is None + assert span.get_tag(errors.ERROR_STACK) is None + assert span.span_type == 'web' + + def test_mw_exc_success(self): + """Ensure exceptions can be properly handled by other middleware. + + No error should be reported in the span. + """ + from .app.middleware import ExceptionMiddleware, ExceptionToSuccessMiddleware + wsgiapp = ExceptionMiddleware(self._wsgiapp) + wsgiapp = ExceptionToSuccessMiddleware(wsgiapp) + app = PylonsTraceMiddleware(wsgiapp, self.tracer, service='web') + app = fixture.TestApp(app) + + app.get(url_for(controller='root', action='index')) + + spans = self.tracer.writer.pop() + + assert spans, spans + assert len(spans) == 1 + span = spans[0] + + assert span.service == 'web' + assert span.resource == 'None.None' + assert span.error == 0 + assert span.get_tag(http.URL) == 'http://localhost:80/' + assert_span_http_status_code(span, 200) + assert span.get_tag(errors.ERROR_MSG) is None + assert span.get_tag(errors.ERROR_TYPE) is None + assert span.get_tag(errors.ERROR_STACK) is None + + def test_middleware_exception(self): + """Ensure exceptions raised in middleware are properly handled. + + Uncaught exceptions should result in error tagged spans. + """ + from .app.middleware import ExceptionMiddleware + wsgiapp = ExceptionMiddleware(self._wsgiapp) + app = PylonsTraceMiddleware(wsgiapp, self.tracer, service='web') + app = fixture.TestApp(app) + + with pytest.raises(Exception): + app.get(url_for(controller='root', action='index')) + + spans = self.tracer.writer.pop() + + assert spans, spans + assert len(spans) == 1 + span = spans[0] + + assert span.service == 'web' + assert span.resource == 'None.None' + assert span.error == 1 + assert span.get_tag(http.URL) == 'http://localhost:80/' + assert_span_http_status_code(span, 500) + assert span.get_tag(errors.ERROR_MSG) == 'Middleware exception' + assert span.get_tag(errors.ERROR_TYPE) == 'exceptions.Exception' + assert span.get_tag(errors.ERROR_STACK) + + def test_exc_success(self): + from .app.middleware import ExceptionToSuccessMiddleware + wsgiapp = ExceptionToSuccessMiddleware(self._wsgiapp) + app = PylonsTraceMiddleware(wsgiapp, self.tracer, service='web') + app = fixture.TestApp(app) + + app.get(url_for(controller='root', action='raise_exception')) + + spans = self.tracer.writer.pop() + assert spans, spans + assert len(spans) == 1 + span = spans[0] + + assert span.service == 'web' + assert span.resource == 'root.raise_exception' + assert span.error == 0 + assert span.get_tag(http.URL) == 'http://localhost:80/raise_exception' + assert_span_http_status_code(span, 200) + assert span.get_tag(errors.ERROR_MSG) is None + assert span.get_tag(errors.ERROR_TYPE) is None + assert span.get_tag(errors.ERROR_STACK) is None + + def test_exc_client_failure(self): + from .app.middleware import ExceptionToClientErrorMiddleware + wsgiapp = ExceptionToClientErrorMiddleware(self._wsgiapp) + app = PylonsTraceMiddleware(wsgiapp, self.tracer, service='web') + app = fixture.TestApp(app) + + app.get(url_for(controller='root', action='raise_exception'), status=404) + + spans = self.tracer.writer.pop() + assert spans, spans + assert len(spans) == 1 + span = spans[0] + + assert span.service == 'web' + assert span.resource == 'root.raise_exception' + assert span.error == 0 + assert span.get_tag(http.URL) == 'http://localhost:80/raise_exception' + assert_span_http_status_code(span, 404) + assert span.get_tag(errors.ERROR_MSG) is None + assert span.get_tag(errors.ERROR_TYPE) is None + assert span.get_tag(errors.ERROR_STACK) is None + + def test_success_200(self, query_string=''): + if query_string: + fqs = '?' + query_string + else: + fqs = '' + res = self.app.get(url_for(controller='root', action='index') + fqs) + assert res.status == 200 + + spans = self.tracer.writer.pop() + assert spans, spans + assert len(spans) == 1 + span = spans[0] + + assert span.service == 'web' + assert span.resource == 'root.index' + assert_span_http_status_code(span, 200) + if config.pylons.trace_query_string: + assert span.meta.get(http.QUERY_STRING) == query_string + else: + assert http.QUERY_STRING not in span.meta + assert span.error == 0 + + def test_query_string(self): + return self.test_success_200('foo=bar') + + def test_multi_query_string(self): + return self.test_success_200('foo=bar&foo=baz&x=y') + + def test_query_string_trace(self): + with self.override_http_config('pylons', dict(trace_query_string=True)): + return self.test_success_200('foo=bar') + + def test_multi_query_string_trace(self): + with self.override_http_config('pylons', dict(trace_query_string=True)): + return self.test_success_200('foo=bar&foo=baz&x=y') + + def test_analytics_global_on_integration_default(self): + """ + When making a request + When an integration trace search is not event sample rate is not set and globally trace search is enabled + We expect the root span to have the appropriate tag + """ + with self.override_global_config(dict(analytics_enabled=True)): + res = self.app.get(url_for(controller='root', action='index')) + self.assertEqual(res.status, 200) + + self.assert_structure( + dict(name='pylons.request', metrics={ANALYTICS_SAMPLE_RATE_KEY: 1.0}) + ) + + def test_analytics_global_on_integration_on(self): + """ + When making a request + When an integration trace search is enabled and sample rate is set and globally trace search is enabled + We expect the root span to have the appropriate tag + """ + with self.override_global_config(dict(analytics_enabled=True)): + with self.override_config('pylons', dict(analytics_enabled=True, analytics_sample_rate=0.5)): + res = self.app.get(url_for(controller='root', action='index')) + self.assertEqual(res.status, 200) + + self.assert_structure( + dict(name='pylons.request', metrics={ANALYTICS_SAMPLE_RATE_KEY: 0.5}) + ) + + def test_analytics_global_off_integration_default(self): + """ + When making a request + When an integration trace search is not set and sample rate is set and globally trace search is disabled + We expect the root span to not include tag + """ + with self.override_global_config(dict(analytics_enabled=False)): + res = self.app.get(url_for(controller='root', action='index')) + self.assertEqual(res.status, 200) + + root = self.get_root_span() + self.assertIsNone(root.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + def test_analytics_global_off_integration_on(self): + """ + When making a request + When an integration trace search is enabled and sample rate is set and globally trace search is disabled + We expect the root span to have the appropriate tag + """ + with self.override_global_config(dict(analytics_enabled=False)): + with self.override_config('pylons', dict(analytics_enabled=True, analytics_sample_rate=0.5)): + res = self.app.get(url_for(controller='root', action='index')) + self.assertEqual(res.status, 200) + + self.assert_structure( + dict(name='pylons.request', metrics={ANALYTICS_SAMPLE_RATE_KEY: 0.5}) + ) + + def test_template_render(self): + res = self.app.get(url_for(controller='root', action='render')) + assert res.status == 200 + + spans = self.tracer.writer.pop() + assert spans, spans + assert len(spans) == 2 + request = spans[0] + template = spans[1] + + assert request.service == 'web' + assert request.resource == 'root.render' + assert_span_http_status_code(request, 200) + assert request.error == 0 + + assert template.service == 'web' + assert template.resource == 'pylons.render' + assert template.meta.get('template.name') == '/template.mako' + assert template.error == 0 + + def test_template_render_exception(self): + with pytest.raises(Exception): + self.app.get(url_for(controller='root', action='render_exception')) + + spans = self.tracer.writer.pop() + assert spans, spans + assert len(spans) == 2 + request = spans[0] + template = spans[1] + + assert request.service == 'web' + assert request.resource == 'root.render_exception' + assert_span_http_status_code(request, 500) + assert request.error == 1 + + assert template.service == 'web' + assert template.resource == 'pylons.render' + assert template.meta.get('template.name') == '/exception.mako' + assert template.error == 1 + assert template.get_tag('error.msg') == 'integer division or modulo by zero' + assert 'ZeroDivisionError: integer division or modulo by zero' in template.get_tag('error.stack') + + def test_failure_500(self): + with pytest.raises(Exception): + self.app.get(url_for(controller='root', action='raise_exception')) + + spans = self.tracer.writer.pop() + assert spans, spans + assert len(spans) == 1 + span = spans[0] + + assert span.service == 'web' + assert span.resource == 'root.raise_exception' + assert span.error == 1 + assert_span_http_status_code(span, 500) + assert span.get_tag('error.msg') == 'Ouch!' + assert span.get_tag(http.URL) == 'http://localhost:80/raise_exception' + assert 'Exception: Ouch!' in span.get_tag('error.stack') + + def test_failure_500_with_wrong_code(self): + with pytest.raises(Exception): + self.app.get(url_for(controller='root', action='raise_wrong_code')) + + spans = self.tracer.writer.pop() + assert spans, spans + assert len(spans) == 1 + span = spans[0] + + assert span.service == 'web' + assert span.resource == 'root.raise_wrong_code' + assert span.error == 1 + assert_span_http_status_code(span, 500) + assert span.meta.get(http.URL) == 'http://localhost:80/raise_wrong_code' + assert span.get_tag('error.msg') == 'Ouch!' + assert 'Exception: Ouch!' in span.get_tag('error.stack') + + def test_failure_500_with_custom_code(self): + with pytest.raises(Exception): + self.app.get(url_for(controller='root', action='raise_custom_code')) + + spans = self.tracer.writer.pop() + assert spans, spans + assert len(spans) == 1 + span = spans[0] + + assert span.service == 'web' + assert span.resource == 'root.raise_custom_code' + assert span.error == 1 + assert_span_http_status_code(span, 512) + assert span.meta.get(http.URL) == 'http://localhost:80/raise_custom_code' + assert span.get_tag('error.msg') == 'Ouch!' + assert 'Exception: Ouch!' in span.get_tag('error.stack') + + def test_failure_500_with_code_method(self): + with pytest.raises(Exception): + self.app.get(url_for(controller='root', action='raise_code_method')) + + spans = self.tracer.writer.pop() + assert spans, spans + assert len(spans) == 1 + span = spans[0] + + assert span.service == 'web' + assert span.resource == 'root.raise_code_method' + assert span.error == 1 + assert_span_http_status_code(span, 500) + assert span.meta.get(http.URL) == 'http://localhost:80/raise_code_method' + assert span.get_tag('error.msg') == 'Ouch!' + + def test_distributed_tracing_default(self): + # ensure by default, distributed tracing is not enabled + headers = { + 'x-datadog-trace-id': '100', + 'x-datadog-parent-id': '42', + 'x-datadog-sampling-priority': '2', + } + res = self.app.get(url_for(controller='root', action='index'), headers=headers) + assert res.status == 200 + + spans = self.tracer.writer.pop() + assert spans, spans + assert len(spans) == 1 + span = spans[0] + + assert span.trace_id == 100 + assert span.parent_id == 42 + assert span.get_metric(SAMPLING_PRIORITY_KEY) == 2 + + def test_distributed_tracing_disabled(self): + # ensure distributed tracing propagator is working + middleware = self.app.app + middleware._distributed_tracing = False + headers = { + 'x-datadog-trace-id': '100', + 'x-datadog-parent-id': '42', + 'x-datadog-sampling-priority': '2', + } + + res = self.app.get(url_for(controller='root', action='index'), headers=headers) + assert res.status == 200 + + spans = self.tracer.writer.pop() + assert spans, spans + assert len(spans) == 1 + span = spans[0] + + assert span.trace_id != 100 + assert span.parent_id != 42 + assert span.get_metric(SAMPLING_PRIORITY_KEY) != 2 + + def test_success_200_ot(self): + """OpenTracing version of test_success_200.""" + ot_tracer = init_tracer('pylons_svc', self.tracer) + + with ot_tracer.start_active_span('pylons_get'): + res = self.app.get(url_for(controller='root', action='index')) + assert res.status == 200 + + spans = self.tracer.writer.pop() + assert spans, spans + assert len(spans) == 2 + ot_span, dd_span = spans + + # confirm the parenting + assert ot_span.parent_id is None + assert dd_span.parent_id == ot_span.span_id + + assert ot_span.name == 'pylons_get' + assert ot_span.service == 'pylons_svc' + + assert dd_span.service == 'web' + assert dd_span.resource == 'root.index' + assert_span_http_status_code(dd_span, 200) + assert dd_span.meta.get(http.URL) == 'http://localhost:80/' + assert dd_span.error == 0 diff --git a/tests/contrib/pymemcache/__init__.py b/tests/contrib/pymemcache/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/pymemcache/autopatch/__init__.py b/tests/contrib/pymemcache/autopatch/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/pymemcache/autopatch/test.py b/tests/contrib/pymemcache/autopatch/test.py new file mode 100644 index 0000000000..68f55f3069 --- /dev/null +++ b/tests/contrib/pymemcache/autopatch/test.py @@ -0,0 +1,23 @@ +import pymemcache +import unittest +from ddtrace.vendor import wrapt + + +class AutoPatchTestCase(unittest.TestCase): + """Test ensuring that ddtrace-run patches pymemcache. + + This ensures that things like the patch functions are properly exported + from the module and used to patch the library. + + Note: you may get cryptic errors due to ddtrace-run failing, such as + + Traceback (most recent call last): + File ".../dev/dd-trace-py/tests/contrib/pymemcache/test_autopatch.py", line 8, in test_patch + assert issubclass(pymemcache.client.base.Client, wrapt.ObjectProxy) + AttributeError: 'module' object has no attribute 'client' + + this is indicitive of the patch function not being exported by the module. + """ + + def test_patch(self): + assert issubclass(pymemcache.client.base.Client, wrapt.ObjectProxy) diff --git a/tests/contrib/pymemcache/test_client.py b/tests/contrib/pymemcache/test_client.py new file mode 100644 index 0000000000..72467e4743 --- /dev/null +++ b/tests/contrib/pymemcache/test_client.py @@ -0,0 +1,321 @@ +# 3p +import pymemcache +from pymemcache.exceptions import ( + MemcacheClientError, + MemcacheServerError, + MemcacheUnknownCommandError, + MemcacheUnknownError, + MemcacheIllegalInputError, +) +import pytest +import unittest +from ddtrace.vendor import wrapt + +# project +from ddtrace import Pin +from ddtrace.contrib.pymemcache.patch import patch, unpatch +from .utils import MockSocket, _str +from .test_client_mixin import PymemcacheClientTestCaseMixin, TEST_HOST, TEST_PORT + +from tests.test_tracer import get_dummy_tracer + + +_Client = pymemcache.client.base.Client + + +class PymemcacheClientTestCase(PymemcacheClientTestCaseMixin): + """ Tests for a patched pymemcache.client.base.Client. """ + + def test_patch(self): + assert issubclass(pymemcache.client.base.Client, wrapt.ObjectProxy) + client = self.make_client([]) + self.assertIsInstance(client, wrapt.ObjectProxy) + + def test_unpatch(self): + unpatch() + from pymemcache.client.base import Client + + self.assertEqual(Client, _Client) + + def test_set_get(self): + client = self.make_client([b'STORED\r\n', b'VALUE key 0 5\r\nvalue\r\nEND\r\n']) + client.set(b'key', b'value', noreply=False) + result = client.get(b'key') + assert _str(result) == 'value' + + self.check_spans(2, ['set', 'get'], ['set key', 'get key']) + + def test_append_stored(self): + client = self.make_client([b'STORED\r\n']) + result = client.append(b'key', b'value', noreply=False) + assert result is True + + self.check_spans(1, ['append'], ['append key']) + + def test_prepend_stored(self): + client = self.make_client([b'STORED\r\n']) + result = client.prepend(b'key', b'value', noreply=False) + assert result is True + + self.check_spans(1, ['prepend'], ['prepend key']) + + def test_cas_stored(self): + client = self.make_client([b'STORED\r\n']) + result = client.cas(b'key', b'value', b'cas', noreply=False) + assert result is True + + self.check_spans(1, ['cas'], ['cas key']) + + def test_cas_exists(self): + client = self.make_client([b'EXISTS\r\n']) + result = client.cas(b'key', b'value', b'cas', noreply=False) + assert result is False + + self.check_spans(1, ['cas'], ['cas key']) + + def test_cas_not_found(self): + client = self.make_client([b'NOT_FOUND\r\n']) + result = client.cas(b'key', b'value', b'cas', noreply=False) + assert result is None + + self.check_spans(1, ['cas'], ['cas key']) + + def test_delete_exception(self): + client = self.make_client([Exception('fail')]) + + def _delete(): + client.delete(b'key', noreply=False) + + pytest.raises(Exception, _delete) + + spans = self.check_spans(1, ['delete'], ['delete key']) + self.assertEqual(spans[0].error, 1) + + def test_flush_all(self): + client = self.make_client([b'OK\r\n']) + result = client.flush_all(noreply=False) + assert result is True + + self.check_spans(1, ['flush_all'], ['flush_all']) + + def test_incr_exception(self): + client = self.make_client([Exception('fail')]) + + def _incr(): + client.incr(b'key', 1) + + pytest.raises(Exception, _incr) + + spans = self.check_spans(1, ['incr'], ['incr key']) + self.assertEqual(spans[0].error, 1) + + def test_get_error(self): + client = self.make_client([b'ERROR\r\n']) + + def _get(): + client.get(b'key') + + pytest.raises(MemcacheUnknownCommandError, _get) + + spans = self.check_spans(1, ['get'], ['get key']) + self.assertEqual(spans[0].error, 1) + + def test_get_unknown_error(self): + client = self.make_client([b'foobarbaz\r\n']) + + def _get(): + client.get(b'key') + + pytest.raises(MemcacheUnknownError, _get) + + self.check_spans(1, ['get'], ['get key']) + + def test_gets_found(self): + client = self.make_client([b'VALUE key 0 5 10\r\nvalue\r\nEND\r\n']) + result = client.gets(b'key') + assert result == (b'value', b'10') + + self.check_spans(1, ['gets'], ['gets key']) + + def test_touch_not_found(self): + client = self.make_client([b'NOT_FOUND\r\n']) + result = client.touch(b'key', noreply=False) + assert result is False + + self.check_spans(1, ['touch'], ['touch key']) + + def test_set_client_error(self): + client = self.make_client([b'CLIENT_ERROR some message\r\n']) + + def _set(): + client.set('key', 'value', noreply=False) + + pytest.raises(MemcacheClientError, _set) + + spans = self.check_spans(1, ['set'], ['set key']) + self.assertEqual(spans[0].error, 1) + + def test_set_server_error(self): + client = self.make_client([b'SERVER_ERROR some message\r\n']) + + def _set(): + client.set(b'key', b'value', noreply=False) + + pytest.raises(MemcacheServerError, _set) + + spans = self.check_spans(1, ['set'], ['set key']) + self.assertEqual(spans[0].error, 1) + + def test_set_key_with_space(self): + client = self.make_client([b'']) + + def _set(): + client.set(b'key has space', b'value', noreply=False) + + pytest.raises(MemcacheIllegalInputError, _set) + + spans = self.check_spans(1, ['set'], ['set key has space']) + self.assertEqual(spans[0].error, 1) + + def test_quit(self): + client = self.make_client([]) + result = client.quit() + assert result is None + + self.check_spans(1, ['quit'], ['quit']) + + def test_replace_not_stored(self): + client = self.make_client([b'NOT_STORED\r\n']) + result = client.replace(b'key', b'value', noreply=False) + assert result is False + + self.check_spans(1, ['replace'], ['replace key']) + + def test_version_success(self): + client = self.make_client([b'VERSION 1.2.3\r\n'], default_noreply=False) + result = client.version() + assert result == b'1.2.3' + + self.check_spans(1, ['version'], ['version']) + + def test_stats(self): + client = self.make_client([b'STAT fake_stats 1\r\n', b'END\r\n']) + result = client.stats() + assert client.sock.send_bufs == [b'stats \r\n'] + assert result == {b'fake_stats': 1} + + self.check_spans(1, ['stats'], ['stats']) + + def test_service_name_override(self): + client = self.make_client([b'STORED\r\n', b'VALUE key 0 5\r\nvalue\r\nEND\r\n']) + Pin.override(client, service='testsvcname') + client.set(b'key', b'value', noreply=False) + result = client.get(b'key') + assert _str(result) == 'value' + + spans = self.get_spans() + self.assertEqual(spans[0].service, 'testsvcname') + self.assertEqual(spans[1].service, 'testsvcname') + + +class PymemcacheHashClientTestCase(PymemcacheClientTestCaseMixin): + """ Tests for a patched pymemcache.client.hash.HashClient. """ + + def get_spans(self): + spans = [] + for _, client in self.client.clients.items(): + pin = Pin.get_from(client) + tracer = pin.tracer + spans.extend(tracer.writer.pop()) + return spans + + def make_client_pool(self, hostname, mock_socket_values, serializer=None, **kwargs): + mock_client = pymemcache.client.base.Client( + hostname, serializer=serializer, **kwargs + ) + tracer = get_dummy_tracer() + Pin.override(mock_client, tracer=tracer) + + mock_client.sock = MockSocket(mock_socket_values) + client = pymemcache.client.base.PooledClient(hostname, serializer=serializer) + client.client_pool = pymemcache.pool.ObjectPool(lambda: mock_client) + return mock_client + + def make_client(self, *mock_socket_values, **kwargs): + current_port = TEST_PORT + from pymemcache.client.hash import HashClient + + self.client = HashClient([], **kwargs) + ip = TEST_HOST + + for vals in mock_socket_values: + s = '{}:{}'.format(ip, current_port) + c = self.make_client_pool((ip, current_port), vals, **kwargs) + self.client.clients[s] = c + self.client.hasher.add_node(s) + current_port += 1 + return self.client + + def test_delete_many_found(self): + """ + delete_many internally calls client.delete so we should expect to get + delete for our span resource. + + for base.Clients self.delete() is called which by-passes our tracing + on delete() + """ + client = self.make_client([b'STORED\r', b'\n', b'DELETED\r\n']) + result = client.add(b'key', b'value', noreply=False) + result = client.delete_many([b'key'], noreply=False) + assert result is True + + self.check_spans(2, ['add', 'delete'], ['add key', 'delete key']) + + +class PymemcacheClientConfiguration(unittest.TestCase): + """Ensure that pymemache can be configured properly.""" + + def setUp(self): + patch() + + def tearDown(self): + unpatch() + + def make_client(self, mock_socket_values, **kwargs): + tracer = get_dummy_tracer() + Pin.override(pymemcache, tracer=tracer) + self.client = pymemcache.client.base.Client((TEST_HOST, TEST_PORT), **kwargs) + self.client.sock = MockSocket(list(mock_socket_values)) + return self.client + + def test_same_tracer(self): + """Ensure same tracer reference is used by the pin on pymemache and + Clients. + """ + client = pymemcache.client.base.Client((TEST_HOST, TEST_PORT)) + self.assertEqual(Pin.get_from(client).tracer, Pin.get_from(pymemcache).tracer) + + def test_override_parent_pin(self): + """Test that the service set on `pymemcache` is used for Clients.""" + Pin.override(pymemcache, service='mysvc') + client = self.make_client([b'STORED\r\n', b'VALUE key 0 5\r\nvalue\r\nEND\r\n']) + client.set(b'key', b'value', noreply=False) + + pin = Pin.get_from(pymemcache) + tracer = pin.tracer + spans = tracer.writer.pop() + + self.assertEqual(spans[0].service, 'mysvc') + + def test_override_client_pin(self): + """Test that the service set on `pymemcache` is used for Clients.""" + client = self.make_client([b'STORED\r\n', b'VALUE key 0 5\r\nvalue\r\nEND\r\n']) + Pin.override(client, service='mysvc2') + + client.set(b'key', b'value', noreply=False) + + pin = Pin.get_from(pymemcache) + tracer = pin.tracer + spans = tracer.writer.pop() + + self.assertEqual(spans[0].service, 'mysvc2') diff --git a/tests/contrib/pymemcache/test_client_mixin.py b/tests/contrib/pymemcache/test_client_mixin.py new file mode 100644 index 0000000000..edd9fe292a --- /dev/null +++ b/tests/contrib/pymemcache/test_client_mixin.py @@ -0,0 +1,175 @@ +# 3p +import unittest +import pymemcache + +# project +from ddtrace import Pin +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.contrib.pymemcache.patch import patch, unpatch +from ddtrace.ext import memcached as memcachedx, net +from .utils import MockSocket + +from tests.test_tracer import get_dummy_tracer +from ...base import override_config + + +_Client = pymemcache.client.base.Client + +TEST_HOST = 'localhost' +TEST_PORT = 117711 + + +class PymemcacheClientTestCaseMixin(unittest.TestCase): + """ Tests for a patched pymemcache.client.base.Client. """ + + def get_spans(self): + pin = Pin.get_from(self.client) + tracer = pin.tracer + spans = tracer.writer.pop() + return spans + + def check_spans(self, num_expected, resources_expected, queries_expected): + """A helper for validating basic span information.""" + spans = self.get_spans() + self.assertEqual(num_expected, len(spans)) + + for span, resource, query in zip(spans, resources_expected, queries_expected): + self.assertEqual(span.get_tag(net.TARGET_HOST), TEST_HOST) + self.assertEqual(span.get_metric(net.TARGET_PORT), TEST_PORT) + self.assertEqual(span.name, memcachedx.CMD) + self.assertEqual(span.span_type, 'cache') + self.assertEqual(span.service, memcachedx.SERVICE) + self.assertEqual(span.get_tag(memcachedx.QUERY), query) + self.assertEqual(span.resource, resource) + + return spans + + def setUp(self): + patch() + + def tearDown(self): + unpatch() + + def make_client(self, mock_socket_values, **kwargs): + tracer = get_dummy_tracer() + Pin.override(pymemcache, tracer=tracer) + self.client = pymemcache.client.base.Client((TEST_HOST, TEST_PORT), **kwargs) + self.client.sock = MockSocket(list(mock_socket_values)) + return self.client + + def test_set_success(self): + client = self.make_client([b'STORED\r\n']) + result = client.set(b'key', b'value', noreply=False) + assert result is True + + self.check_spans(1, ['set'], ['set key']) + + def test_get_many_none_found(self): + client = self.make_client([b'END\r\n']) + result = client.get_many([b'key1', b'key2']) + assert result == {} + + self.check_spans(1, ['get_many'], ['get_many key1 key2']) + + def test_get_multi_none_found(self): + client = self.make_client([b'END\r\n']) + result = client.get_multi([b'key1', b'key2']) + assert result == {} + + self.check_spans(1, ['get_many'], ['get_many key1 key2']) + + def test_delete_not_found(self): + client = self.make_client([b'NOT_FOUND\r\n']) + result = client.delete(b'key', noreply=False) + assert result is False + + self.check_spans(1, ['delete'], ['delete key']) + + def test_incr_found(self): + client = self.make_client([b'STORED\r\n', b'1\r\n']) + client.set(b'key', 0, noreply=False) + result = client.incr(b'key', 1, noreply=False) + assert result == 1 + + self.check_spans(2, ['set', 'incr'], ['set key', 'incr key']) + + def test_get_found(self): + client = self.make_client([b'STORED\r\n', b'VALUE key 0 5\r\nvalue\r\nEND\r\n']) + result = client.set(b'key', b'value', noreply=False) + result = client.get(b'key') + assert result == b'value' + + self.check_spans(2, ['set', 'get'], ['set key', 'get key']) + + def test_decr_found(self): + client = self.make_client([b'STORED\r\n', b'1\r\n']) + client.set(b'key', 2, noreply=False) + result = client.decr(b'key', 1, noreply=False) + assert result == 1 + + self.check_spans(2, ['set', 'decr'], ['set key', 'decr key']) + + def test_add_stored(self): + client = self.make_client([b'STORED\r', b'\n']) + result = client.add(b'key', b'value', noreply=False) + assert result is True + + self.check_spans(1, ['add'], ['add key']) + + def test_delete_many_found(self): + client = self.make_client([b'STORED\r', b'\n', b'DELETED\r\n']) + result = client.add(b'key', b'value', noreply=False) + result = client.delete_many([b'key'], noreply=False) + assert result is True + + self.check_spans(2, ['add', 'delete_many'], ['add key', 'delete_many key']) + + def test_set_many_success(self): + client = self.make_client([b'STORED\r\n']) + result = client.set_many({b'key': b'value'}, noreply=False) + assert result is True + + self.check_spans(1, ['set_many'], ['set_many key']) + + def test_set_multi_success(self): + # Should just map to set_many + client = self.make_client([b'STORED\r\n']) + result = client.set_multi({b'key': b'value'}, noreply=False) + assert result is True + + self.check_spans(1, ['set_many'], ['set_many key']) + + def test_analytics_default(self): + client = self.make_client([b'STORED\r\n']) + result = client.set(b'key', b'value', noreply=False) + assert result is True + + spans = self.get_spans() + self.assertEqual(len(spans), 1) + self.assertIsNone(spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + def test_analytics_with_rate(self): + with override_config( + 'pymemcache', + dict(analytics_enabled=True, analytics_sample_rate=0.5) + ): + client = self.make_client([b'STORED\r\n']) + result = client.set(b'key', b'value', noreply=False) + assert result is True + + spans = self.get_spans() + self.assertEqual(len(spans), 1) + self.assertEqual(spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY), 0.5) + + def test_analytics_without_rate(self): + with override_config( + 'pymemcache', + dict(analytics_enabled=True) + ): + client = self.make_client([b'STORED\r\n']) + result = client.set(b'key', b'value', noreply=False) + assert result is True + + spans = self.get_spans() + self.assertEqual(len(spans), 1) + self.assertEqual(spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY), 1.0) diff --git a/tests/contrib/pymemcache/utils.py b/tests/contrib/pymemcache/utils.py new file mode 100644 index 0000000000..c748ba2189 --- /dev/null +++ b/tests/contrib/pymemcache/utils.py @@ -0,0 +1,60 @@ +import collections +import socket + + +class MockSocket(object): + def __init__(self, recv_bufs, connect_failure=None): + self.recv_bufs = collections.deque(recv_bufs) + self.send_bufs = [] + self.closed = False + self.timeouts = [] + self.connect_failure = connect_failure + self.connections = [] + self.socket_options = [] + + def sendall(self, value): + self.send_bufs.append(value) + + def close(self): + self.closed = True + + def recv(self, size): + value = self.recv_bufs.popleft() + if isinstance(value, Exception): + raise value + return value + + def settimeout(self, timeout): + self.timeouts.append(timeout) + + def connect(self, server): + if isinstance(self.connect_failure, Exception): + raise self.connect_failure + self.connections.append(server) + + def setsockopt(self, level, option, value): + self.socket_options.append((level, option, value)) + + +class MockSocketModule(object): + def __init__(self, connect_failure=None): + self.connect_failure = connect_failure + self.sockets = [] + + def socket(self, family, type): # noqa: A002 + socket = MockSocket([], connect_failure=self.connect_failure) + self.sockets.append(socket) + return socket + + def __getattr__(self, name): + return getattr(socket, name) + + +# Compatibility to get a string back from a request +def _str(s): + if type(s) is str: + return s + elif type(s) is bytes: + return s.decode() + else: + return str(s) diff --git a/tests/contrib/pymongo/__init__.py b/tests/contrib/pymongo/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/pymongo/test.py b/tests/contrib/pymongo/test.py new file mode 100644 index 0000000000..1e69ad1228 --- /dev/null +++ b/tests/contrib/pymongo/test.py @@ -0,0 +1,445 @@ +# stdlib +import time +import unittest + +# 3p +import pymongo + +# project +from ddtrace import Pin +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.ext import mongo as mongox +from ddtrace.contrib.pymongo.client import trace_mongo_client, normalize_filter +from ddtrace.contrib.pymongo.patch import patch, unpatch + +# testing +from tests.opentracer.utils import init_tracer +from ..config import MONGO_CONFIG +from ...base import override_config +from ...test_tracer import get_dummy_tracer + + +def test_normalize_filter(): + # ensure we can properly normalize queries FIXME[matt] move to the agent + cases = [ + (None, {}), + ( + {'team': 'leafs'}, + {'team': '?'}, + ), + ( + {'age': {'$gt': 20}}, + {'age': {'$gt': '?'}}, + ), + ( + {'age': {'$gt': 20}}, + {'age': {'$gt': '?'}}, + ), + ( + {'_id': {'$in': [1, 2, 3]}}, + {'_id': {'$in': '?'}}, + ), + ( + {'_id': {'$nin': [1, 2, 3]}}, + {'_id': {'$nin': '?'}}, + ), + + ( + 20, + {}, + ), + ( + { + 'status': 'A', + '$or': [{'age': {'$lt': 30}}, {'type': 1}], + }, + { + 'status': '?', + '$or': [{'age': {'$lt': '?'}}, {'type': '?'}], + }, + ), + ] + for i, expected in cases: + out = normalize_filter(i) + assert expected == out + + +class PymongoCore(object): + """Test suite for pymongo + + Independant of the way it got instrumented. + TODO: merge to a single class when patching is the only way. + """ + + TEST_SERVICE = 'test-mongo' + + def get_tracer_and_client(service): + # implement me + pass + + def test_update(self): + # ensure we trace deletes + tracer, client = self.get_tracer_and_client() + writer = tracer.writer + db = client['testdb'] + db.drop_collection('songs') + input_songs = [ + {'name': 'Powderfinger', 'artist': 'Neil'}, + {'name': 'Harvest', 'artist': 'Neil'}, + {'name': 'Suzanne', 'artist': 'Leonard'}, + {'name': 'Partisan', 'artist': 'Leonard'}, + ] + db.songs.insert_many(input_songs) + + result = db.songs.update_many( + {'artist': 'Neil'}, + {'$set': {'artist': 'Shakey'}}, + ) + + assert result.matched_count == 2 + assert result.modified_count == 2 + + # ensure all is traced. + spans = writer.pop() + assert spans, spans + for span in spans: + # ensure all the of the common metadata is set + assert span.service == self.TEST_SERVICE + assert span.span_type == 'mongodb' + assert span.meta.get('mongodb.collection') == 'songs' + assert span.meta.get('mongodb.db') == 'testdb' + assert span.meta.get('out.host') + assert span.metrics.get('out.port') + + expected_resources = set([ + 'drop songs', + 'update songs {"artist": "?"}', + 'insert songs', + ]) + + assert expected_resources == {s.resource for s in spans} + + def test_delete(self): + # ensure we trace deletes + tracer, client = self.get_tracer_and_client() + writer = tracer.writer + db = client['testdb'] + collection_name = 'here.are.songs' + db.drop_collection(collection_name) + input_songs = [ + {'name': 'Powderfinger', 'artist': 'Neil'}, + {'name': 'Harvest', 'artist': 'Neil'}, + {'name': 'Suzanne', 'artist': 'Leonard'}, + {'name': 'Partisan', 'artist': 'Leonard'}, + ] + + songs = db[collection_name] + songs.insert_many(input_songs) + + # test delete one + af = {'artist': 'Neil'} + assert songs.count(af) == 2 + songs.delete_one(af) + assert songs.count(af) == 1 + + # test delete many + af = {'artist': 'Leonard'} + assert songs.count(af) == 2 + songs.delete_many(af) + assert songs.count(af) == 0 + + # ensure all is traced. + spans = writer.pop() + assert spans, spans + for span in spans: + # ensure all the of the common metadata is set + assert span.service == self.TEST_SERVICE + assert span.span_type == 'mongodb' + assert span.meta.get('mongodb.collection') == collection_name + assert span.meta.get('mongodb.db') == 'testdb' + assert span.meta.get('out.host') + assert span.metrics.get('out.port') + + expected_resources = [ + 'drop here.are.songs', + 'count here.are.songs', + 'count here.are.songs', + 'count here.are.songs', + 'count here.are.songs', + 'delete here.are.songs {"artist": "?"}', + 'delete here.are.songs {"artist": "?"}', + 'insert here.are.songs', + ] + + assert sorted(expected_resources) == sorted(s.resource for s in spans) + + def test_insert_find(self): + tracer, client = self.get_tracer_and_client() + writer = tracer.writer + + start = time.time() + db = client.testdb + db.drop_collection('teams') + teams = [ + { + 'name': 'Toronto Maple Leafs', + 'established': 1917, + }, + { + 'name': 'Montreal Canadiens', + 'established': 1910, + }, + { + 'name': 'New York Rangers', + 'established': 1926, + } + ] + + # create some data (exercising both ways of inserting) + + db.teams.insert_one(teams[0]) + db.teams.insert_many(teams[1:]) + + # wildcard query (using the [] syntax) + cursor = db['teams'].find() + count = 0 + for row in cursor: + count += 1 + assert count == len(teams) + + # scoped query (using the getattr syntax) + q = {'name': 'Toronto Maple Leafs'} + queried = list(db.teams.find(q)) + end = time.time() + assert len(queried) == 1 + assert queried[0]['name'] == 'Toronto Maple Leafs' + assert queried[0]['established'] == 1917 + + spans = writer.pop() + for span in spans: + # ensure all the of the common metadata is set + assert span.service == self.TEST_SERVICE + assert span.span_type == 'mongodb' + assert span.meta.get('mongodb.collection') == 'teams' + assert span.meta.get('mongodb.db') == 'testdb' + assert span.meta.get('out.host'), span.pprint() + assert span.metrics.get('out.port'), span.pprint() + assert span.start > start + assert span.duration < end - start + + expected_resources = [ + 'drop teams', + 'insert teams', + 'insert teams', + ] + + # query names should be used in >3.1 + name = 'find' if pymongo.version_tuple >= (3, 1, 0) else 'query' + + expected_resources.extend([ + '{} teams'.format(name), + '{} teams {{"name": "?"}}'.format(name), + ]) + + assert expected_resources == list(s.resource for s in spans) + + # confirm query tag for find all + assert spans[-2].get_tag('mongodb.query') is None + + # confirm query tag find with query criteria on name + assert spans[-1].get_tag('mongodb.query') == '{\'name\': \'?\'}' + + def test_update_ot(self): + """OpenTracing version of test_update.""" + tracer, client = self.get_tracer_and_client() + ot_tracer = init_tracer('mongo_svc', tracer) + + writer = tracer.writer + with ot_tracer.start_active_span('mongo_op'): + db = client['testdb'] + db.drop_collection('songs') + input_songs = [ + {'name': 'Powderfinger', 'artist': 'Neil'}, + {'name': 'Harvest', 'artist': 'Neil'}, + {'name': 'Suzanne', 'artist': 'Leonard'}, + {'name': 'Partisan', 'artist': 'Leonard'}, + ] + db.songs.insert_many(input_songs) + result = db.songs.update_many( + {'artist': 'Neil'}, + {'$set': {'artist': 'Shakey'}}, + ) + + assert result.matched_count == 2 + assert result.modified_count == 2 + + # ensure all is traced. + spans = writer.pop() + assert spans, spans + assert len(spans) == 4 + + ot_span = spans[0] + assert ot_span.parent_id is None + assert ot_span.name == 'mongo_op' + assert ot_span.service == 'mongo_svc' + + for span in spans[1:]: + # ensure the parenting + assert span.parent_id == ot_span.span_id + # ensure all the of the common metadata is set + assert span.service == self.TEST_SERVICE + assert span.span_type == 'mongodb' + assert span.meta.get('mongodb.collection') == 'songs' + assert span.meta.get('mongodb.db') == 'testdb' + assert span.meta.get('out.host') + assert span.metrics.get('out.port') + + expected_resources = set([ + 'drop songs', + 'update songs {"artist": "?"}', + 'insert songs', + ]) + + assert expected_resources == {s.resource for s in spans[1:]} + + def test_analytics_default(self): + tracer, client = self.get_tracer_and_client() + db = client['testdb'] + db.drop_collection('songs') + + spans = tracer.writer.pop() + assert len(spans) == 1 + assert spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY) is None + + def test_analytics_with_rate(self): + with override_config( + 'pymongo', + dict(analytics_enabled=True, analytics_sample_rate=0.5) + ): + tracer, client = self.get_tracer_and_client() + db = client['testdb'] + db.drop_collection('songs') + + spans = tracer.writer.pop() + assert len(spans) == 1 + assert spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY) == 0.5 + + def test_analytics_without_rate(self): + with override_config( + 'pymongo', + dict(analytics_enabled=True) + ): + tracer, client = self.get_tracer_and_client() + db = client['testdb'] + db.drop_collection('songs') + + spans = tracer.writer.pop() + assert len(spans) == 1 + assert spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY) == 1.0 + + +class TestPymongoTraceClient(unittest.TestCase, PymongoCore): + """Test suite for pymongo with the legacy trace interface""" + + TEST_SERVICE = 'test-mongo-trace-client' + + def get_tracer_and_client(self): + tracer = get_dummy_tracer() + original_client = pymongo.MongoClient(port=MONGO_CONFIG['port']) + client = trace_mongo_client(original_client, tracer, service=self.TEST_SERVICE) + return tracer, client + + +class TestPymongoPatchDefault(unittest.TestCase, PymongoCore): + """Test suite for pymongo with the default patched library""" + + TEST_SERVICE = mongox.SERVICE + + def setUp(self): + patch() + + def tearDown(self): + unpatch() + + def get_tracer_and_client(self): + tracer = get_dummy_tracer() + client = pymongo.MongoClient(port=MONGO_CONFIG['port']) + Pin.get_from(client).clone(tracer=tracer).onto(client) + return tracer, client + + def test_service(self): + tracer, client = self.get_tracer_and_client() + writer = tracer.writer + db = client['testdb'] + db.drop_collection('songs') + + services = writer.pop_services() + assert services == {} + + def test_host_kwarg(self): + # simulate what celery and django do when instantiating a new client + conf = { + 'host': 'localhost', + } + client = pymongo.MongoClient(**conf) + + conf = { + 'host': None, + } + client = pymongo.MongoClient(**conf) + + assert client + + +class TestPymongoPatchConfigured(unittest.TestCase, PymongoCore): + """Test suite for pymongo with a configured patched library""" + + TEST_SERVICE = 'test-mongo-trace-client' + + def setUp(self): + patch() + + def tearDown(self): + unpatch() + + def get_tracer_and_client(self): + tracer = get_dummy_tracer() + client = pymongo.MongoClient(port=MONGO_CONFIG['port']) + Pin(service=self.TEST_SERVICE, tracer=tracer).onto(client) + return tracer, client + + def test_patch_unpatch(self): + tracer = get_dummy_tracer() + writer = tracer.writer + + # Test patch idempotence + patch() + patch() + + client = pymongo.MongoClient(port=MONGO_CONFIG['port']) + Pin.get_from(client).clone(tracer=tracer).onto(client) + client['testdb'].drop_collection('whatever') + + spans = writer.pop() + assert spans, spans + assert len(spans) == 1 + + # Test unpatch + unpatch() + + client = pymongo.MongoClient(port=MONGO_CONFIG['port']) + client['testdb'].drop_collection('whatever') + + spans = writer.pop() + assert not spans, spans + + # Test patch again + patch() + + client = pymongo.MongoClient(port=MONGO_CONFIG['port']) + Pin.get_from(client).clone(tracer=tracer).onto(client) + client['testdb'].drop_collection('whatever') + + spans = writer.pop() + assert spans, spans + assert len(spans) == 1 diff --git a/tests/contrib/pymongo/test_spec.py b/tests/contrib/pymongo/test_spec.py new file mode 100644 index 0000000000..0709a64b5d --- /dev/null +++ b/tests/contrib/pymongo/test_spec.py @@ -0,0 +1,52 @@ +""" +tests for parsing specs. +""" + +from bson.son import SON + +from ddtrace.contrib.pymongo.parse import parse_spec + + +def test_empty(): + cmd = parse_spec(SON([])) + assert cmd is None + + +def test_create(): + cmd = parse_spec(SON([('create', 'foo')])) + assert cmd.name == 'create' + assert cmd.coll == 'foo' + assert cmd.tags == {} + assert cmd.metrics == {} + + +def test_insert(): + spec = SON([ + ('insert', 'bla'), + ('ordered', True), + ('documents', ['a', 'b']), + ]) + cmd = parse_spec(spec) + assert cmd.name == 'insert' + assert cmd.coll == 'bla' + assert cmd.tags == {'mongodb.ordered': True} + assert cmd.metrics == {'mongodb.documents': 2} + + +def test_update(): + spec = SON([ + ('update', u'songs'), + ('ordered', True), + ('updates', [ + SON([ + ('q', {'artist': 'Neil'}), + ('u', {'$set': {'artist': 'Shakey'}}), + ('multi', True), + ('upsert', False) + ]) + ]) + ]) + cmd = parse_spec(spec) + assert cmd.name == 'update' + assert cmd.coll == 'songs' + assert cmd.query == {'artist': 'Neil'} diff --git a/tests/contrib/pymysql/__init__.py b/tests/contrib/pymysql/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/pymysql/test_backwards_compatibility.py b/tests/contrib/pymysql/test_backwards_compatibility.py new file mode 100644 index 0000000000..46cc4cc293 --- /dev/null +++ b/tests/contrib/pymysql/test_backwards_compatibility.py @@ -0,0 +1,12 @@ +from ddtrace.contrib.pymysql import get_traced_pymysql_connection +from tests.test_tracer import get_dummy_tracer +from tests.contrib import config + + +def test_pre_v4(): + tracer = get_dummy_tracer() + MySQL = get_traced_pymysql_connection(tracer, service='my-mysql-server') + conn = MySQL(**config.MYSQL_CONFIG) + cursor = conn.cursor() + cursor.execute('SELECT 1') + assert cursor.fetchone()[0] == 1 diff --git a/tests/contrib/pymysql/test_pymysql.py b/tests/contrib/pymysql/test_pymysql.py new file mode 100644 index 0000000000..5951c33ce3 --- /dev/null +++ b/tests/contrib/pymysql/test_pymysql.py @@ -0,0 +1,428 @@ +# 3p +import pymysql + +# project +from ddtrace import Pin +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.compat import PY2 +from ddtrace.compat import stringify +from ddtrace.contrib.pymysql.patch import patch, unpatch + +# testing +from tests.opentracer.utils import init_tracer +from ...base import BaseTracerTestCase +from ...util import assert_dict_issuperset +from ...contrib.config import MYSQL_CONFIG + + +class PyMySQLCore(object): + """PyMySQL test case reuses the connection across tests""" + conn = None + TEST_SERVICE = 'test-pymysql' + + DB_INFO = { + 'out.host': MYSQL_CONFIG.get('host'), + } + if PY2: + DB_INFO.update({ + 'db.user': MYSQL_CONFIG.get('user'), + 'db.name': MYSQL_CONFIG.get('database') + }) + else: + DB_INFO.update({ + 'db.user': stringify(bytes(MYSQL_CONFIG.get('user'), encoding='utf-8')), + 'db.name': stringify(bytes(MYSQL_CONFIG.get('database'), encoding='utf-8')) + }) + + def setUp(self): + super(PyMySQLCore, self).setUp() + patch() + + def tearDown(self): + super(PyMySQLCore, self).tearDown() + if self.conn and not self.conn._closed: + self.conn.close() + unpatch() + + def _get_conn_tracer(self): + # implement me + pass + + def test_simple_query(self): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + cursor = conn.cursor() + + # PyMySQL returns back the rowcount instead of a cursor + rowcount = cursor.execute('SELECT 1') + assert rowcount == 1 + + rows = cursor.fetchall() + assert len(rows) == 1 + spans = writer.pop() + assert len(spans) == 1 + + span = spans[0] + assert span.service == self.TEST_SERVICE + assert span.name == 'pymysql.query' + assert span.span_type == 'sql' + assert span.error == 0 + assert span.get_metric('out.port') == MYSQL_CONFIG.get('port') + meta = {} + meta.update(self.DB_INFO) + assert_dict_issuperset(span.meta, meta) + + def test_simple_query_fetchall(self): + with self.override_config('dbapi2', dict(trace_fetch_methods=True)): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + cursor = conn.cursor() + cursor.execute('SELECT 1') + rows = cursor.fetchall() + assert len(rows) == 1 + spans = writer.pop() + assert len(spans) == 2 + + span = spans[0] + assert span.service == self.TEST_SERVICE + assert span.name == 'pymysql.query' + assert span.span_type == 'sql' + assert span.error == 0 + assert span.get_metric('out.port') == MYSQL_CONFIG.get('port') + meta = {} + meta.update(self.DB_INFO) + assert_dict_issuperset(span.meta, meta) + + fetch_span = spans[1] + assert fetch_span.name == 'pymysql.query.fetchall' + + def test_query_with_several_rows(self): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + cursor = conn.cursor() + query = 'SELECT n FROM (SELECT 42 n UNION SELECT 421 UNION SELECT 4210) m' + cursor.execute(query) + rows = cursor.fetchall() + assert len(rows) == 3 + spans = writer.pop() + assert len(spans) == 1 + self.assertEqual(spans[0].name, 'pymysql.query') + + def test_query_with_several_rows_fetchall(self): + with self.override_config('dbapi2', dict(trace_fetch_methods=True)): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + cursor = conn.cursor() + query = 'SELECT n FROM (SELECT 42 n UNION SELECT 421 UNION SELECT 4210) m' + cursor.execute(query) + rows = cursor.fetchall() + assert len(rows) == 3 + spans = writer.pop() + assert len(spans) == 2 + + fetch_span = spans[1] + assert fetch_span.name == 'pymysql.query.fetchall' + + def test_query_many(self): + # tests that the executemany method is correctly wrapped. + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + tracer.enabled = False + cursor = conn.cursor() + + cursor.execute(""" + create table if not exists dummy ( + dummy_key VARCHAR(32) PRIMARY KEY, + dummy_value TEXT NOT NULL)""") + tracer.enabled = True + + stmt = 'INSERT INTO dummy (dummy_key, dummy_value) VALUES (%s, %s)' + data = [('foo', 'this is foo'), + ('bar', 'this is bar')] + + # PyMySQL `executemany()` returns the rowcount + rowcount = cursor.executemany(stmt, data) + assert rowcount == 2 + + query = 'SELECT dummy_key, dummy_value FROM dummy ORDER BY dummy_key' + cursor.execute(query) + rows = cursor.fetchall() + assert len(rows) == 2 + assert rows[0][0] == 'bar' + assert rows[0][1] == 'this is bar' + assert rows[1][0] == 'foo' + assert rows[1][1] == 'this is foo' + + spans = writer.pop() + assert len(spans) == 2 + cursor.execute('drop table if exists dummy') + + def test_query_many_fetchall(self): + with self.override_config('dbapi2', dict(trace_fetch_methods=True)): + # tests that the executemany method is correctly wrapped. + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + tracer.enabled = False + cursor = conn.cursor() + + cursor.execute(""" + create table if not exists dummy ( + dummy_key VARCHAR(32) PRIMARY KEY, + dummy_value TEXT NOT NULL)""") + tracer.enabled = True + + stmt = 'INSERT INTO dummy (dummy_key, dummy_value) VALUES (%s, %s)' + data = [('foo', 'this is foo'), + ('bar', 'this is bar')] + cursor.executemany(stmt, data) + query = 'SELECT dummy_key, dummy_value FROM dummy ORDER BY dummy_key' + cursor.execute(query) + rows = cursor.fetchall() + assert len(rows) == 2 + assert rows[0][0] == 'bar' + assert rows[0][1] == 'this is bar' + assert rows[1][0] == 'foo' + assert rows[1][1] == 'this is foo' + + spans = writer.pop() + assert len(spans) == 3 + cursor.execute('drop table if exists dummy') + + fetch_span = spans[2] + assert fetch_span.name == 'pymysql.query.fetchall' + + def test_query_proc(self): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + + # create a procedure + tracer.enabled = False + cursor = conn.cursor() + cursor.execute('DROP PROCEDURE IF EXISTS sp_sum') + cursor.execute(""" + CREATE PROCEDURE sp_sum (IN p1 INTEGER, IN p2 INTEGER, OUT p3 INTEGER) + BEGIN + SET p3 := p1 + p2; + END;""") + + tracer.enabled = True + proc = 'sp_sum' + data = (40, 2, None) + + # spans[len(spans) - 2] + cursor.callproc(proc, data) + + # spans[len(spans) - 1] + cursor.execute(""" + SELECT @_sp_sum_0, @_sp_sum_1, @_sp_sum_2 + """) + output = cursor.fetchone() + assert len(output) == 3 + assert output[2] == 42 + + spans = writer.pop() + assert spans, spans + + # number of spans depends on PyMySQL implementation details, + # typically, internal calls to execute, but at least we + # can expect the last closed span to be our proc. + span = spans[len(spans) - 2] + assert span.service == self.TEST_SERVICE + assert span.name == 'pymysql.query' + assert span.span_type == 'sql' + assert span.error == 0 + assert span.get_metric('out.port') == MYSQL_CONFIG.get('port') + meta = {} + meta.update(self.DB_INFO) + assert_dict_issuperset(span.meta, meta) + + def test_simple_query_ot(self): + """OpenTracing version of test_simple_query.""" + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + ot_tracer = init_tracer('mysql_svc', tracer) + with ot_tracer.start_active_span('mysql_op'): + cursor = conn.cursor() + cursor.execute('SELECT 1') + rows = cursor.fetchall() + assert len(rows) == 1 + + spans = writer.pop() + assert len(spans) == 2 + ot_span, dd_span = spans + + # confirm parenting + assert ot_span.parent_id is None + assert dd_span.parent_id == ot_span.span_id + + assert ot_span.service == 'mysql_svc' + assert ot_span.name == 'mysql_op' + + assert dd_span.service == self.TEST_SERVICE + assert dd_span.name == 'pymysql.query' + assert dd_span.span_type == 'sql' + assert dd_span.error == 0 + assert dd_span.get_metric('out.port') == MYSQL_CONFIG.get('port') + meta = {} + meta.update(self.DB_INFO) + assert_dict_issuperset(dd_span.meta, meta) + + def test_simple_query_ot_fetchall(self): + """OpenTracing version of test_simple_query.""" + with self.override_config('dbapi2', dict(trace_fetch_methods=True)): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + ot_tracer = init_tracer('mysql_svc', tracer) + with ot_tracer.start_active_span('mysql_op'): + cursor = conn.cursor() + cursor.execute('SELECT 1') + rows = cursor.fetchall() + assert len(rows) == 1 + + spans = writer.pop() + assert len(spans) == 3 + ot_span, dd_span, fetch_span = spans + + # confirm parenting + assert ot_span.parent_id is None + assert dd_span.parent_id == ot_span.span_id + + assert ot_span.service == 'mysql_svc' + assert ot_span.name == 'mysql_op' + + assert dd_span.service == self.TEST_SERVICE + assert dd_span.name == 'pymysql.query' + assert dd_span.span_type == 'sql' + assert dd_span.error == 0 + assert dd_span.get_metric('out.port') == MYSQL_CONFIG.get('port') + meta = {} + meta.update(self.DB_INFO) + assert_dict_issuperset(dd_span.meta, meta) + + assert fetch_span.name == 'pymysql.query.fetchall' + + def test_commit(self): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + conn.commit() + spans = writer.pop() + assert len(spans) == 1 + span = spans[0] + assert span.service == self.TEST_SERVICE + assert span.name == 'pymysql.connection.commit' + + def test_rollback(self): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + conn.rollback() + spans = writer.pop() + assert len(spans) == 1 + span = spans[0] + assert span.service == self.TEST_SERVICE + assert span.name == 'pymysql.connection.rollback' + + def test_analytics_default(self): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + cursor = conn.cursor() + cursor.execute('SELECT 1') + rows = cursor.fetchall() + assert len(rows) == 1 + spans = writer.pop() + + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertIsNone(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + def test_analytics_with_rate(self): + with self.override_config( + 'dbapi2', + dict(analytics_enabled=True, analytics_sample_rate=0.5) + ): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + cursor = conn.cursor() + cursor.execute('SELECT 1') + rows = cursor.fetchall() + assert len(rows) == 1 + spans = writer.pop() + + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY), 0.5) + + def test_analytics_without_rate(self): + with self.override_config( + 'dbapi2', + dict(analytics_enabled=True) + ): + conn, tracer = self._get_conn_tracer() + writer = tracer.writer + cursor = conn.cursor() + cursor.execute('SELECT 1') + rows = cursor.fetchall() + assert len(rows) == 1 + spans = writer.pop() + + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY), 1.0) + + +class TestPyMysqlPatch(PyMySQLCore, BaseTracerTestCase): + def _get_conn_tracer(self): + if not self.conn: + self.conn = pymysql.connect(**MYSQL_CONFIG) + assert not self.conn._closed + # Ensure that the default pin is there, with its default value + pin = Pin.get_from(self.conn) + assert pin + assert pin.service == 'pymysql' + # Customize the service + # we have to apply it on the existing one since new one won't inherit `app` + pin.clone(service=self.TEST_SERVICE, tracer=self.tracer).onto(self.conn) + + return self.conn, self.tracer + + def test_patch_unpatch(self): + unpatch() + # assert we start unpatched + conn = pymysql.connect(**MYSQL_CONFIG) + assert not Pin.get_from(conn) + conn.close() + + patch() + try: + writer = self.tracer.writer + conn = pymysql.connect(**MYSQL_CONFIG) + pin = Pin.get_from(conn) + assert pin + pin.clone(service=self.TEST_SERVICE, tracer=self.tracer).onto(conn) + assert not conn._closed + + cursor = conn.cursor() + cursor.execute('SELECT 1') + rows = cursor.fetchall() + assert len(rows) == 1 + spans = writer.pop() + assert len(spans) == 1 + + span = spans[0] + assert span.service == self.TEST_SERVICE + assert span.name == 'pymysql.query' + assert span.span_type == 'sql' + assert span.error == 0 + assert span.get_metric('out.port') == MYSQL_CONFIG.get('port') + + meta = {} + meta.update(self.DB_INFO) + assert_dict_issuperset(span.meta, meta) + finally: + unpatch() + + # assert we finish unpatched + conn = pymysql.connect(**MYSQL_CONFIG) + assert not Pin.get_from(conn) + conn.close() + + patch() diff --git a/tests/contrib/pyramid/__init__.py b/tests/contrib/pyramid/__init__.py new file mode 100644 index 0000000000..0c810a0b71 --- /dev/null +++ b/tests/contrib/pyramid/__init__.py @@ -0,0 +1,3 @@ +from .test_pyramid_autopatch import _include_me + +__all__ = ['_include_me'] diff --git a/tests/contrib/pyramid/app/__init__.py b/tests/contrib/pyramid/app/__init__.py new file mode 100644 index 0000000000..65cf7f8c0d --- /dev/null +++ b/tests/contrib/pyramid/app/__init__.py @@ -0,0 +1 @@ +from .web import create_app # noqa diff --git a/tests/contrib/pyramid/app/web.py b/tests/contrib/pyramid/app/web.py new file mode 100644 index 0000000000..849e57c636 --- /dev/null +++ b/tests/contrib/pyramid/app/web.py @@ -0,0 +1,70 @@ +from ddtrace.contrib.pyramid import trace_pyramid + +from pyramid.response import Response +from pyramid.config import Configurator +from pyramid.renderers import render_to_response +from pyramid.httpexceptions import ( + HTTPInternalServerError, + HTTPFound, + HTTPNotFound, + HTTPNoContent, +) + + +def create_app(settings, instrument): + """Return a pyramid wsgi app""" + + def index(request): + return Response('idx') + + def error(request): + raise HTTPInternalServerError('oh no') + + def exception(request): + 1 / 0 + + def json(request): + return {'a': 1} + + def renderer(request): + return render_to_response('template.pt', {'foo': 'bar'}, request=request) + + def raise_redirect(request): + raise HTTPFound() + + def raise_no_content(request): + raise HTTPNoContent() + + def custom_exception_view(context, request): + """Custom view that forces a HTTPException when no views + are found to handle given request + """ + if 'raise_exception' in request.url: + raise HTTPNotFound() + else: + return HTTPNotFound() + + config = Configurator(settings=settings) + config.add_route('index', '/') + config.add_route('error', '/error') + config.add_route('exception', '/exception') + config.add_route('json', '/json') + config.add_route('renderer', '/renderer') + config.add_route('raise_redirect', '/redirect') + config.add_route('raise_no_content', '/nocontent') + config.add_view(index, route_name='index') + config.add_view(error, route_name='error') + config.add_view(exception, route_name='exception') + config.add_view(json, route_name='json', renderer='json') + config.add_view(renderer, route_name='renderer', renderer='template.pt') + config.add_view(raise_redirect, route_name='raise_redirect') + config.add_view(raise_no_content, route_name='raise_no_content') + # required to reproduce a regression test + config.add_notfound_view(custom_exception_view) + # required for rendering tests + renderer = config.testing_add_renderer('template.pt') + + if instrument: + trace_pyramid(config) + + return config.make_wsgi_app(), renderer diff --git a/tests/contrib/pyramid/test_pyramid.py b/tests/contrib/pyramid/test_pyramid.py new file mode 100644 index 0000000000..b2429d8a90 --- /dev/null +++ b/tests/contrib/pyramid/test_pyramid.py @@ -0,0 +1,74 @@ +from ddtrace.constants import SAMPLING_PRIORITY_KEY, ORIGIN_KEY + +from .utils import PyramidTestCase, PyramidBase + + +def includeme(config): + pass + + +class TestPyramid(PyramidTestCase): + instrument = True + + def test_tween_overridden(self): + # in case our tween is overriden by the user config we should + # not log rendering + self.override_settings({'pyramid.tweens': 'pyramid.tweens.excview_tween_factory'}) + self.app.get('/json', status=200) + spans = self.tracer.writer.pop() + assert len(spans) == 0 + + +class TestPyramidDistributedTracingDefault(PyramidBase): + instrument = True + + def get_settings(self): + return {} + + def test_distributed_tracing(self): + # ensure the Context is properly created + # if distributed tracing is enabled + headers = { + 'x-datadog-trace-id': '100', + 'x-datadog-parent-id': '42', + 'x-datadog-sampling-priority': '2', + 'x-datadog-origin': 'synthetics', + } + self.app.get('/', headers=headers, status=200) + writer = self.tracer.writer + spans = writer.pop() + assert len(spans) == 1 + # check the propagated Context + span = spans[0] + assert span.trace_id == 100 + assert span.parent_id == 42 + assert span.get_metric(SAMPLING_PRIORITY_KEY) == 2 + assert span.get_tag(ORIGIN_KEY) == 'synthetics' + + +class TestPyramidDistributedTracingDisabled(PyramidBase): + instrument = True + + def get_settings(self): + return { + 'datadog_distributed_tracing': False, + } + + def test_distributed_tracing_disabled(self): + # we do not inherit context if distributed tracing is disabled + headers = { + 'x-datadog-trace-id': '100', + 'x-datadog-parent-id': '42', + 'x-datadog-sampling-priority': '2', + 'x-datadog-origin': 'synthetics', + } + self.app.get('/', headers=headers, status=200) + writer = self.tracer.writer + spans = writer.pop() + assert len(spans) == 1 + # check the propagated Context + span = spans[0] + assert span.trace_id != 100 + assert span.parent_id != 42 + assert span.get_metric(SAMPLING_PRIORITY_KEY) != 2 + assert span.get_tag(ORIGIN_KEY) != 'synthetics' diff --git a/tests/contrib/pyramid/test_pyramid_autopatch.py b/tests/contrib/pyramid/test_pyramid_autopatch.py new file mode 100644 index 0000000000..0e4c8c39bd --- /dev/null +++ b/tests/contrib/pyramid/test_pyramid_autopatch.py @@ -0,0 +1,49 @@ +from pyramid.config import Configurator + +from .test_pyramid import PyramidTestCase, PyramidBase + + +class TestPyramidAutopatch(PyramidTestCase): + instrument = False + + +class TestPyramidExplicitTweens(PyramidTestCase): + instrument = False + + def get_settings(self): + return { + 'pyramid.tweens': 'pyramid.tweens.excview_tween_factory\n', + } + + +class TestPyramidDistributedTracing(PyramidBase): + instrument = False + + def test_distributed_tracing(self): + # ensure the Context is properly created + # if distributed tracing is enabled + headers = { + 'x-datadog-trace-id': '100', + 'x-datadog-parent-id': '42', + 'x-datadog-sampling-priority': '2', + 'x-datadog-origin': 'synthetics', + } + self.app.get('/', headers=headers, status=200) + writer = self.tracer.writer + spans = writer.pop() + assert len(spans) == 1 + # check the propagated Context + span = spans[0] + assert span.trace_id == 100 + assert span.parent_id == 42 + assert span.get_metric('_sampling_priority_v1') == 2 + + +def _include_me(config): + pass + + +def test_config_include(): + """Makes sure that relative imports still work when the application is run with ddtrace-run.""" + config = Configurator() + config.include('tests.contrib.pyramid._include_me') diff --git a/tests/contrib/pyramid/utils.py b/tests/contrib/pyramid/utils.py new file mode 100644 index 0000000000..3e9ee9dc81 --- /dev/null +++ b/tests/contrib/pyramid/utils.py @@ -0,0 +1,357 @@ +import json + +from pyramid.httpexceptions import HTTPException +import pytest +import webtest + +from ddtrace import compat +from ddtrace import config +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.contrib.pyramid.patch import insert_tween_if_needed +from ddtrace.ext import http + +from .app import create_app + +from ...opentracer.utils import init_tracer +from ...base import BaseTracerTestCase +from ...utils import assert_span_http_status_code + + +class PyramidBase(BaseTracerTestCase): + """Base Pyramid test application""" + + def setUp(self): + super(PyramidBase, self).setUp() + self.create_app() + + def create_app(self, settings=None): + # get default settings or use what is provided + settings = settings or self.get_settings() + # always set the dummy tracer as a default tracer + settings.update({"datadog_tracer": self.tracer}) + + app, renderer = create_app(settings, self.instrument) + self.app = webtest.TestApp(app) + self.renderer = renderer + + def get_settings(self): + return {} + + def override_settings(self, settings): + self.create_app(settings) + + +class PyramidTestCase(PyramidBase): + """Pyramid TestCase that includes tests for automatic instrumentation""" + + instrument = True + + def get_settings(self): + return { + "datadog_trace_service": "foobar", + } + + def test_200(self, query_string=""): + if query_string: + fqs = "?" + query_string + else: + fqs = "" + res = self.app.get("/" + fqs, status=200) + assert b"idx" in res.body + + writer = self.tracer.writer + spans = writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.service == "foobar" + assert s.resource == "GET index" + assert s.error == 0 + assert s.span_type == "web" + assert s.meta.get("http.method") == "GET" + assert_span_http_status_code(s, 200) + assert s.meta.get(http.URL) == "http://localhost/" + if config.pyramid.trace_query_string: + assert s.meta.get(http.QUERY_STRING) == query_string + else: + assert http.QUERY_STRING not in s.meta + assert s.meta.get("pyramid.route.name") == "index" + + # ensure services are set correctly + services = writer.pop_services() + expected = {} + assert services == expected + + def test_200_query_string(self): + return self.test_200("foo=bar") + + def test_200_query_string_trace(self): + with self.override_http_config("pyramid", dict(trace_query_string=True)): + return self.test_200("foo=bar") + + def test_analytics_global_on_integration_default(self): + """ + When making a request + When an integration trace search is not event sample rate is not set and globally trace search is enabled + We expect the root span to have the appropriate tag + """ + with self.override_global_config(dict(analytics_enabled=True)): + res = self.app.get("/", status=200) + assert b"idx" in res.body + + self.assert_structure(dict(name="pyramid.request", metrics={ANALYTICS_SAMPLE_RATE_KEY: 1.0}),) + + def test_analytics_global_on_integration_on(self): + """ + When making a request + When an integration trace search is enabled and sample rate is set and globally trace search is enabled + We expect the root span to have the appropriate tag + """ + with self.override_global_config(dict(analytics_enabled=True)): + self.override_settings(dict(datadog_analytics_enabled=True, datadog_analytics_sample_rate=0.5)) + res = self.app.get("/", status=200) + assert b"idx" in res.body + + self.assert_structure(dict(name="pyramid.request", metrics={ANALYTICS_SAMPLE_RATE_KEY: 0.5}),) + + def test_analytics_global_off_integration_default(self): + """ + When making a request + When an integration trace search is not set and sample rate is set and globally trace search is disabled + We expect the root span to not include tag + """ + with self.override_global_config(dict(analytics_enabled=False)): + res = self.app.get("/", status=200) + assert b"idx" in res.body + + root = self.get_root_span() + self.assertIsNone(root.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + def test_analytics_global_off_integration_on(self): + """ + When making a request + When an integration trace search is enabled and sample rate is set and globally trace search is disabled + We expect the root span to have the appropriate tag + """ + with self.override_global_config(dict(analytics_enabled=False)): + self.override_settings(dict(datadog_analytics_enabled=True, datadog_analytics_sample_rate=0.5)) + res = self.app.get("/", status=200) + assert b"idx" in res.body + + self.assert_structure(dict(name="pyramid.request", metrics={ANALYTICS_SAMPLE_RATE_KEY: 0.5}),) + + def test_404(self): + self.app.get("/404", status=404) + + writer = self.tracer.writer + spans = writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.service == "foobar" + assert s.resource == "404" + assert s.error == 0 + assert s.span_type == "web" + assert s.meta.get("http.method") == "GET" + assert_span_http_status_code(s, 404) + assert s.meta.get(http.URL) == "http://localhost/404" + + def test_302(self): + self.app.get("/redirect", status=302) + + writer = self.tracer.writer + spans = writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.service == "foobar" + assert s.resource == "GET raise_redirect" + assert s.error == 0 + assert s.span_type == "web" + assert s.meta.get("http.method") == "GET" + assert_span_http_status_code(s, 302) + assert s.meta.get(http.URL) == "http://localhost/redirect" + + def test_204(self): + self.app.get("/nocontent", status=204) + + writer = self.tracer.writer + spans = writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.service == "foobar" + assert s.resource == "GET raise_no_content" + assert s.error == 0 + assert s.span_type == "web" + assert s.meta.get("http.method") == "GET" + assert_span_http_status_code(s, 204) + assert s.meta.get(http.URL) == "http://localhost/nocontent" + + def test_exception(self): + try: + self.app.get("/exception", status=500) + except ZeroDivisionError: + pass + + writer = self.tracer.writer + spans = writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.service == "foobar" + assert s.resource == "GET exception" + assert s.error == 1 + assert s.span_type == "web" + assert s.meta.get("http.method") == "GET" + assert_span_http_status_code(s, 500) + assert s.meta.get(http.URL) == "http://localhost/exception" + assert s.meta.get("pyramid.route.name") == "exception" + + def test_500(self): + self.app.get("/error", status=500) + + writer = self.tracer.writer + spans = writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.service == "foobar" + assert s.resource == "GET error" + assert s.error == 1 + assert s.span_type == "web" + assert s.meta.get("http.method") == "GET" + assert_span_http_status_code(s, 500) + assert s.meta.get(http.URL) == "http://localhost/error" + assert s.meta.get("pyramid.route.name") == "error" + assert type(s.error) == int + + def test_json(self): + res = self.app.get("/json", status=200) + parsed = json.loads(compat.to_unicode(res.body)) + assert parsed == {"a": 1} + + writer = self.tracer.writer + spans = writer.pop() + assert len(spans) == 2 + spans_by_name = {s.name: s for s in spans} + s = spans_by_name["pyramid.request"] + assert s.service == "foobar" + assert s.resource == "GET json" + assert s.error == 0 + assert s.span_type == "web" + assert s.meta.get("http.method") == "GET" + assert_span_http_status_code(s, 200) + assert s.meta.get(http.URL) == "http://localhost/json" + assert s.meta.get("pyramid.route.name") == "json" + + s = spans_by_name["pyramid.render"] + assert s.service == "foobar" + assert s.error == 0 + assert s.span_type == "template" + + def test_renderer(self): + self.app.get("/renderer", status=200) + assert self.renderer._received["request"] is not None + + self.renderer.assert_(foo="bar") + writer = self.tracer.writer + spans = writer.pop() + assert len(spans) == 2 + spans_by_name = {s.name: s for s in spans} + s = spans_by_name["pyramid.request"] + assert s.service == "foobar" + assert s.resource == "GET renderer" + assert s.error == 0 + assert s.span_type == "web" + assert s.meta.get("http.method") == "GET" + assert_span_http_status_code(s, 200) + assert s.meta.get(http.URL) == "http://localhost/renderer" + assert s.meta.get("pyramid.route.name") == "renderer" + + s = spans_by_name["pyramid.render"] + assert s.service == "foobar" + assert s.error == 0 + assert s.span_type == "template" + + def test_http_exception_response(self): + with pytest.raises(HTTPException): + self.app.get("/404/raise_exception", status=404) + + writer = self.tracer.writer + spans = writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.service == "foobar" + assert s.resource == "404" + assert s.error == 1 + assert s.span_type == "web" + assert s.meta.get("http.method") == "GET" + assert_span_http_status_code(s, 404) + assert s.meta.get(http.URL) == "http://localhost/404/raise_exception" + + def test_insert_tween_if_needed_already_set(self): + settings = {"pyramid.tweens": "ddtrace.contrib.pyramid:trace_tween_factory"} + insert_tween_if_needed(settings) + assert settings["pyramid.tweens"] == "ddtrace.contrib.pyramid:trace_tween_factory" + + def test_insert_tween_if_needed_none(self): + settings = {"pyramid.tweens": ""} + insert_tween_if_needed(settings) + assert settings["pyramid.tweens"] == "" + + def test_insert_tween_if_needed_excview(self): + settings = {"pyramid.tweens": "pyramid.tweens.excview_tween_factory"} + insert_tween_if_needed(settings) + assert ( + settings["pyramid.tweens"] + == "ddtrace.contrib.pyramid:trace_tween_factory\npyramid.tweens.excview_tween_factory" + ) + + def test_insert_tween_if_needed_excview_and_other(self): + settings = {"pyramid.tweens": "a.first.tween\npyramid.tweens.excview_tween_factory\na.last.tween\n"} + insert_tween_if_needed(settings) + assert ( + settings["pyramid.tweens"] == "a.first.tween\n" + "ddtrace.contrib.pyramid:trace_tween_factory\n" + "pyramid.tweens.excview_tween_factory\n" + "a.last.tween\n" + ) + + def test_insert_tween_if_needed_others(self): + settings = {"pyramid.tweens": "a.random.tween\nand.another.one"} + insert_tween_if_needed(settings) + assert ( + settings["pyramid.tweens"] == "a.random.tween\nand.another.one\nddtrace.contrib.pyramid:trace_tween_factory" + ) + + def test_include_conflicts(self): + # test that includes do not create conflicts + self.override_settings({"pyramid.includes": "tests.contrib.pyramid.test_pyramid"}) + self.app.get("/404", status=404) + spans = self.tracer.writer.pop() + assert len(spans) == 1 + + def test_200_ot(self): + """OpenTracing version of test_200.""" + ot_tracer = init_tracer("pyramid_svc", self.tracer) + + with ot_tracer.start_active_span("pyramid_get"): + res = self.app.get("/", status=200) + assert b"idx" in res.body + + writer = self.tracer.writer + spans = writer.pop() + assert len(spans) == 2 + + ot_span, dd_span = spans + + # confirm the parenting + assert ot_span.parent_id is None + assert dd_span.parent_id == ot_span.span_id + + assert ot_span.name == "pyramid_get" + assert ot_span.service == "pyramid_svc" + + assert dd_span.service == "foobar" + assert dd_span.resource == "GET index" + assert dd_span.error == 0 + assert dd_span.span_type == "web" + assert dd_span.meta.get("http.method") == "GET" + assert_span_http_status_code(dd_span, 200) + assert dd_span.meta.get(http.URL) == "http://localhost/" + assert dd_span.meta.get("pyramid.route.name") == "index" diff --git a/tests/contrib/redis/__init__.py b/tests/contrib/redis/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/redis/test.py b/tests/contrib/redis/test.py new file mode 100644 index 0000000000..bf746cd118 --- /dev/null +++ b/tests/contrib/redis/test.py @@ -0,0 +1,224 @@ +# -*- coding: utf-8 -*- +import redis + +from ddtrace import Pin, compat +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.contrib.redis import get_traced_redis +from ddtrace.contrib.redis.patch import patch, unpatch + +from tests.opentracer.utils import init_tracer +from ..config import REDIS_CONFIG +from ...test_tracer import get_dummy_tracer +from ...base import BaseTracerTestCase + + +def test_redis_legacy(): + # ensure the old interface isn't broken, but doesn't trace + tracer = get_dummy_tracer() + TracedRedisCache = get_traced_redis(tracer, 'foo') + r = TracedRedisCache(port=REDIS_CONFIG['port']) + r.set('a', 'b') + got = r.get('a') + assert compat.to_unicode(got) == 'b' + assert not tracer.writer.pop() + + +class TestRedisPatch(BaseTracerTestCase): + + TEST_SERVICE = 'redis-patch' + TEST_PORT = REDIS_CONFIG['port'] + + def setUp(self): + super(TestRedisPatch, self).setUp() + patch() + r = redis.Redis(port=self.TEST_PORT) + r.flushall() + Pin.override(r, service=self.TEST_SERVICE, tracer=self.tracer) + self.r = r + + def tearDown(self): + unpatch() + super(TestRedisPatch, self).tearDown() + + def test_long_command(self): + self.r.mget(*range(1000)) + + spans = self.get_spans() + assert len(spans) == 1 + span = spans[0] + assert span.service == self.TEST_SERVICE + assert span.name == 'redis.command' + assert span.span_type == 'redis' + assert span.error == 0 + meta = { + 'out.host': u'localhost', + } + metrics = { + 'out.port': self.TEST_PORT, + 'out.redis_db': 0, + } + for k, v in meta.items(): + assert span.get_tag(k) == v + for k, v in metrics.items(): + assert span.get_metric(k) == v + + assert span.get_tag('redis.raw_command').startswith(u'MGET 0 1 2 3') + assert span.get_tag('redis.raw_command').endswith(u'...') + + def test_basics(self): + us = self.r.get('cheese') + assert us is None + spans = self.get_spans() + assert len(spans) == 1 + span = spans[0] + assert span.service == self.TEST_SERVICE + assert span.name == 'redis.command' + assert span.span_type == 'redis' + assert span.error == 0 + assert span.get_metric('out.redis_db') == 0 + assert span.get_tag('out.host') == 'localhost' + assert span.get_tag('redis.raw_command') == u'GET cheese' + assert span.get_metric('redis.args_length') == 2 + assert span.resource == 'GET cheese' + assert span.get_metric(ANALYTICS_SAMPLE_RATE_KEY) is None + + def test_analytics_without_rate(self): + with self.override_config( + 'redis', + dict(analytics_enabled=True) + ): + us = self.r.get('cheese') + assert us is None + spans = self.get_spans() + assert len(spans) == 1 + span = spans[0] + assert span.get_metric(ANALYTICS_SAMPLE_RATE_KEY) == 1.0 + + def test_analytics_with_rate(self): + with self.override_config( + 'redis', + dict(analytics_enabled=True, analytics_sample_rate=0.5) + ): + us = self.r.get('cheese') + assert us is None + spans = self.get_spans() + assert len(spans) == 1 + span = spans[0] + assert span.get_metric(ANALYTICS_SAMPLE_RATE_KEY) == 0.5 + + def test_pipeline_traced(self): + with self.r.pipeline(transaction=False) as p: + p.set('blah', 32) + p.rpush('foo', u'éé') + p.hgetall('xxx') + p.execute() + + spans = self.get_spans() + assert len(spans) == 1 + span = spans[0] + assert span.service == self.TEST_SERVICE + assert span.name == 'redis.command' + assert span.resource == u'SET blah 32\nRPUSH foo éé\nHGETALL xxx' + assert span.span_type == 'redis' + assert span.error == 0 + assert span.get_metric('out.redis_db') == 0 + assert span.get_tag('out.host') == 'localhost' + assert span.get_tag('redis.raw_command') == u'SET blah 32\nRPUSH foo éé\nHGETALL xxx' + assert span.get_metric('redis.pipeline_length') == 3 + assert span.get_metric('redis.pipeline_length') == 3 + assert span.get_metric(ANALYTICS_SAMPLE_RATE_KEY) is None + + def test_pipeline_immediate(self): + with self.r.pipeline() as p: + p.set('a', 1) + p.immediate_execute_command('SET', 'a', 1) + p.execute() + + spans = self.get_spans() + assert len(spans) == 2 + span = spans[0] + assert span.service == self.TEST_SERVICE + assert span.name == 'redis.command' + assert span.resource == u'SET a 1' + assert span.span_type == 'redis' + assert span.error == 0 + assert span.get_metric('out.redis_db') == 0 + assert span.get_tag('out.host') == 'localhost' + + def test_meta_override(self): + r = self.r + pin = Pin.get_from(r) + if pin: + pin.clone(tags={'cheese': 'camembert'}).onto(r) + + r.get('cheese') + spans = self.get_spans() + assert len(spans) == 1 + span = spans[0] + assert span.service == self.TEST_SERVICE + assert 'cheese' in span.meta and span.meta['cheese'] == 'camembert' + + def test_patch_unpatch(self): + tracer = get_dummy_tracer() + writer = tracer.writer + + # Test patch idempotence + patch() + patch() + + r = redis.Redis(port=REDIS_CONFIG['port']) + Pin.get_from(r).clone(tracer=tracer).onto(r) + r.get('key') + + spans = writer.pop() + assert spans, spans + assert len(spans) == 1 + + # Test unpatch + unpatch() + + r = redis.Redis(port=REDIS_CONFIG['port']) + r.get('key') + + spans = writer.pop() + assert not spans, spans + + # Test patch again + patch() + + r = redis.Redis(port=REDIS_CONFIG['port']) + Pin.get_from(r).clone(tracer=tracer).onto(r) + r.get('key') + + spans = writer.pop() + assert spans, spans + assert len(spans) == 1 + + def test_opentracing(self): + """Ensure OpenTracing works with redis.""" + ot_tracer = init_tracer('redis_svc', self.tracer) + + with ot_tracer.start_active_span('redis_get'): + us = self.r.get('cheese') + assert us is None + + spans = self.get_spans() + assert len(spans) == 2 + ot_span, dd_span = spans + + # confirm the parenting + assert ot_span.parent_id is None + assert dd_span.parent_id == ot_span.span_id + + assert ot_span.name == 'redis_get' + assert ot_span.service == 'redis_svc' + + assert dd_span.service == self.TEST_SERVICE + assert dd_span.name == 'redis.command' + assert dd_span.span_type == 'redis' + assert dd_span.error == 0 + assert dd_span.get_metric('out.redis_db') == 0 + assert dd_span.get_tag('out.host') == 'localhost' + assert dd_span.get_tag('redis.raw_command') == u'GET cheese' + assert dd_span.get_metric('redis.args_length') == 2 + assert dd_span.resource == 'GET cheese' diff --git a/tests/contrib/rediscluster/__init__.py b/tests/contrib/rediscluster/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/rediscluster/test.py b/tests/contrib/rediscluster/test.py new file mode 100644 index 0000000000..f2224cbc04 --- /dev/null +++ b/tests/contrib/rediscluster/test.py @@ -0,0 +1,102 @@ +# -*- coding: utf-8 -*- +import rediscluster + +from ddtrace import Pin +from ddtrace.contrib.rediscluster.patch import patch, unpatch +from ..config import REDISCLUSTER_CONFIG +from ...test_tracer import get_dummy_tracer +from ...base import BaseTracerTestCase + + +class TestRedisPatch(BaseTracerTestCase): + + TEST_SERVICE = 'rediscluster-patch' + TEST_HOST = REDISCLUSTER_CONFIG['host'] + TEST_PORTS = REDISCLUSTER_CONFIG['ports'] + + def _get_test_client(self): + startup_nodes = [ + {'host': self.TEST_HOST, 'port': int(port)} + for port in self.TEST_PORTS.split(',') + ] + return rediscluster.StrictRedisCluster(startup_nodes=startup_nodes) + + def setUp(self): + super(TestRedisPatch, self).setUp() + patch() + r = self._get_test_client() + r.flushall() + Pin.override(r, service=self.TEST_SERVICE, tracer=self.tracer) + self.r = r + + def tearDown(self): + unpatch() + super(TestRedisPatch, self).tearDown() + + def test_basics(self): + us = self.r.get('cheese') + assert us is None + spans = self.get_spans() + assert len(spans) == 1 + span = spans[0] + assert span.service == self.TEST_SERVICE + assert span.name == 'redis.command' + assert span.span_type == 'redis' + assert span.error == 0 + assert span.get_tag('redis.raw_command') == u'GET cheese' + assert span.get_metric('redis.args_length') == 2 + assert span.resource == 'GET cheese' + + def test_pipeline(self): + with self.r.pipeline(transaction=False) as p: + p.set('blah', 32) + p.rpush('foo', u'éé') + p.hgetall('xxx') + p.execute() + + spans = self.get_spans() + assert len(spans) == 1 + span = spans[0] + assert span.service == self.TEST_SERVICE + assert span.name == 'redis.command' + assert span.resource == u'SET blah 32\nRPUSH foo éé\nHGETALL xxx' + assert span.span_type == 'redis' + assert span.error == 0 + assert span.get_tag('redis.raw_command') == u'SET blah 32\nRPUSH foo éé\nHGETALL xxx' + assert span.get_metric('redis.pipeline_length') == 3 + + def test_patch_unpatch(self): + tracer = get_dummy_tracer() + writer = tracer.writer + + # Test patch idempotence + patch() + patch() + + r = self._get_test_client() + Pin.get_from(r).clone(tracer=tracer).onto(r) + r.get('key') + + spans = writer.pop() + assert spans, spans + assert len(spans) == 1 + + # Test unpatch + unpatch() + + r = self._get_test_client() + r.get('key') + + spans = writer.pop() + assert not spans, spans + + # Test patch again + patch() + + r = self._get_test_client() + Pin.get_from(r).clone(tracer=tracer).onto(r) + r.get('key') + + spans = writer.pop() + assert spans, spans + assert len(spans) == 1 diff --git a/tests/contrib/requests/__init__.py b/tests/contrib/requests/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/requests/test_requests.py b/tests/contrib/requests/test_requests.py new file mode 100644 index 0000000000..97faa06d2f --- /dev/null +++ b/tests/contrib/requests/test_requests.py @@ -0,0 +1,479 @@ +import pytest +import requests +from requests import Session +from requests.exceptions import MissingSchema + +from ddtrace import config +from ddtrace import Pin +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.contrib.requests import patch, unpatch +from ddtrace.ext import errors, http + +from tests.opentracer.utils import init_tracer + +from ...base import BaseTracerTestCase +from ...util import override_global_tracer +from ...utils import assert_span_http_status_code + +# socket name comes from https://english.stackexchange.com/a/44048 +SOCKET = 'httpbin.org' +URL_200 = 'http://{}/status/200'.format(SOCKET) +URL_500 = 'http://{}/status/500'.format(SOCKET) + + +class BaseRequestTestCase(object): + """Create a traced Session, patching during the setUp and + unpatching after the tearDown + """ + def setUp(self): + super(BaseRequestTestCase, self).setUp() + + patch() + self.session = Session() + setattr(self.session, 'datadog_tracer', self.tracer) + + def tearDown(self): + unpatch() + + super(BaseRequestTestCase, self).tearDown() + + +class TestRequests(BaseRequestTestCase, BaseTracerTestCase): + def test_resource_path(self): + out = self.session.get(URL_200) + assert out.status_code == 200 + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.get_tag('http.url') == URL_200 + + def test_tracer_disabled(self): + # ensure all valid combinations of args / kwargs work + self.tracer.enabled = False + out = self.session.get(URL_200) + assert out.status_code == 200 + spans = self.tracer.writer.pop() + assert len(spans) == 0 + + def test_args_kwargs(self): + # ensure all valid combinations of args / kwargs work + url = URL_200 + method = 'GET' + inputs = [ + ([], {'method': method, 'url': url}), + ([method], {'url': url}), + ([method, url], {}), + ] + + for args, kwargs in inputs: + # ensure a traced request works with these args + out = self.session.request(*args, **kwargs) + assert out.status_code == 200 + # validation + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.get_tag(http.METHOD) == 'GET' + assert_span_http_status_code(s, 200) + + def test_untraced_request(self): + # ensure the unpatch removes tracing + unpatch() + untraced = Session() + + out = untraced.get(URL_200) + assert out.status_code == 200 + # validation + spans = self.tracer.writer.pop() + assert len(spans) == 0 + + def test_double_patch(self): + # ensure that double patch doesn't duplicate instrumentation + patch() + session = Session() + setattr(session, 'datadog_tracer', self.tracer) + + out = session.get(URL_200) + assert out.status_code == 200 + spans = self.tracer.writer.pop() + assert len(spans) == 1 + + def test_200(self): + out = self.session.get(URL_200) + assert out.status_code == 200 + # validation + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.get_tag(http.METHOD) == 'GET' + assert_span_http_status_code(s, 200) + assert s.error == 0 + assert s.span_type == 'http' + assert http.QUERY_STRING not in s.meta + + def test_200_send(self): + # when calling send directly + req = requests.Request(url=URL_200, method='GET') + req = self.session.prepare_request(req) + + out = self.session.send(req) + assert out.status_code == 200 + # validation + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.get_tag(http.METHOD) == 'GET' + assert_span_http_status_code(s, 200) + assert s.error == 0 + assert s.span_type == 'http' + + def test_200_query_string(self): + # ensure query string is removed before adding url to metadata + query_string = 'key=value&key2=value2' + with self.override_http_config('requests', dict(trace_query_string=True)): + out = self.session.get(URL_200 + '?' + query_string) + assert out.status_code == 200 + # validation + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.get_tag(http.METHOD) == 'GET' + assert_span_http_status_code(s, 200) + assert s.get_tag(http.URL) == URL_200 + assert s.error == 0 + assert s.span_type == 'http' + assert s.get_tag(http.QUERY_STRING) == query_string + + def test_requests_module_200(self): + # ensure the requests API is instrumented even without + # using a `Session` directly + with override_global_tracer(self.tracer): + out = requests.get(URL_200) + assert out.status_code == 200 + # validation + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.get_tag(http.METHOD) == 'GET' + assert_span_http_status_code(s, 200) + assert s.error == 0 + assert s.span_type == 'http' + + def test_post_500(self): + out = self.session.post(URL_500) + # validation + assert out.status_code == 500 + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.get_tag(http.METHOD) == 'POST' + assert_span_http_status_code(s, 500) + assert s.error == 1 + + def test_non_existant_url(self): + try: + self.session.get('http://doesnotexist.google.com') + except Exception: + pass + else: + assert 0, 'expected error' + + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.get_tag(http.METHOD) == 'GET' + assert s.error == 1 + assert 'Failed to establish a new connection' in s.get_tag(errors.MSG) + assert 'Failed to establish a new connection' in s.get_tag(errors.STACK) + assert 'Traceback (most recent call last)' in s.get_tag(errors.STACK) + assert 'requests.exception' in s.get_tag(errors.TYPE) + + def test_500(self): + out = self.session.get(URL_500) + assert out.status_code == 500 + + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.get_tag(http.METHOD) == 'GET' + assert_span_http_status_code(s, 500) + assert s.error == 1 + + def test_default_service_name(self): + # ensure a default service name is set + out = self.session.get(URL_200) + assert out.status_code == 200 + + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + + assert s.service == 'requests' + + def test_user_set_service_name(self): + # ensure a service name set by the user has precedence + cfg = config.get_from(self.session) + cfg['service_name'] = 'clients' + out = self.session.get(URL_200) + assert out.status_code == 200 + + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + + assert s.service == 'clients' + + def test_parent_service_name_precedence(self): + # ensure the parent service name has precedence if the value + # is not set by the user + with self.tracer.trace('parent.span', service='web'): + out = self.session.get(URL_200) + assert out.status_code == 200 + + spans = self.tracer.writer.pop() + assert len(spans) == 2 + s = spans[1] + + assert s.name == 'requests.request' + assert s.service == 'web' + + def test_parent_without_service_name(self): + # ensure the default value is used if the parent + # doesn't have a service + with self.tracer.trace('parent.span'): + out = self.session.get(URL_200) + assert out.status_code == 200 + + spans = self.tracer.writer.pop() + assert len(spans) == 2 + s = spans[1] + + assert s.name == 'requests.request' + assert s.service == 'requests' + + def test_user_service_name_precedence(self): + # ensure the user service name takes precedence over + # the parent Span + cfg = config.get_from(self.session) + cfg['service_name'] = 'clients' + with self.tracer.trace('parent.span', service='web'): + out = self.session.get(URL_200) + assert out.status_code == 200 + + spans = self.tracer.writer.pop() + assert len(spans) == 2 + s = spans[1] + + assert s.name == 'requests.request' + assert s.service == 'clients' + + def test_split_by_domain(self): + # ensure a service name is generated by the domain name + # of the ongoing call + cfg = config.get_from(self.session) + cfg['split_by_domain'] = True + out = self.session.get(URL_200) + assert out.status_code == 200 + + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + + assert s.service == 'httpbin.org' + + def test_split_by_domain_precedence(self): + # ensure the split by domain has precedence all the time + cfg = config.get_from(self.session) + cfg['split_by_domain'] = True + cfg['service_name'] = 'intake' + out = self.session.get(URL_200) + assert out.status_code == 200 + + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + + assert s.service == 'httpbin.org' + + def test_split_by_domain_wrong(self): + # ensure the split by domain doesn't crash in case of a wrong URL; + # in that case, no spans are created + cfg = config.get_from(self.session) + cfg['split_by_domain'] = True + with pytest.raises(MissingSchema): + self.session.get('http:/some>thing') + + # We are wrapping `requests.Session.send` and this error gets thrown before that function + spans = self.tracer.writer.pop() + assert len(spans) == 0 + + def test_split_by_domain_remove_auth_in_url(self): + # ensure that auth details are stripped from URL + cfg = config.get_from(self.session) + cfg['split_by_domain'] = True + out = self.session.get('http://user:pass@httpbin.org') + assert out.status_code == 200 + + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + + assert s.service == 'httpbin.org' + + def test_split_by_domain_includes_port(self): + # ensure that port is included if present in URL + cfg = config.get_from(self.session) + cfg['split_by_domain'] = True + out = self.session.get('http://httpbin.org:80') + assert out.status_code == 200 + + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + + assert s.service == 'httpbin.org:80' + + def test_split_by_domain_includes_port_path(self): + # ensure that port is included if present in URL but not path + cfg = config.get_from(self.session) + cfg['split_by_domain'] = True + out = self.session.get('http://httpbin.org:80/anything/v1/foo') + assert out.status_code == 200 + + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + + assert s.service == 'httpbin.org:80' + + def test_200_ot(self): + """OpenTracing version of test_200.""" + + ot_tracer = init_tracer('requests_svc', self.tracer) + + with ot_tracer.start_active_span('requests_get'): + out = self.session.get(URL_200) + assert out.status_code == 200 + + # validation + spans = self.tracer.writer.pop() + assert len(spans) == 2 + + ot_span, dd_span = spans + + # confirm the parenting + assert ot_span.parent_id is None + assert dd_span.parent_id == ot_span.span_id + + assert ot_span.name == 'requests_get' + assert ot_span.service == 'requests_svc' + + assert dd_span.get_tag(http.METHOD) == 'GET' + assert_span_http_status_code(dd_span, 200) + assert dd_span.error == 0 + assert dd_span.span_type == 'http' + + def test_request_and_response_headers(self): + # Disabled when not configured + self.session.get(URL_200, headers={'my-header': 'my_value'}) + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.get_tag('http.request.headers.my-header') is None + assert s.get_tag('http.response.headers.access-control-allow-origin') is None + + # Enabled when explicitly configured + with self.override_config('requests', {}): + config.requests.http.trace_headers(['my-header', 'access-control-allow-origin']) + self.session.get(URL_200, headers={'my-header': 'my_value'}) + spans = self.tracer.writer.pop() + assert len(spans) == 1 + s = spans[0] + assert s.get_tag('http.request.headers.my-header') == 'my_value' + assert s.get_tag('http.response.headers.access-control-allow-origin') == '*' + + def test_analytics_integration_default(self): + """ + When making a request + When an integration trace search is enabled and sample rate is set + We expect the root span to have the appropriate tag + """ + self.session.get(URL_200) + + spans = self.tracer.writer.pop() + self.assertEqual(len(spans), 1) + s = spans[0] + self.assertIsNone(s.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + def test_analytics_integration_disabled(self): + """ + When making a request + When an integration trace search is enabled and sample rate is set + We expect the root span to have the appropriate tag + """ + with self.override_config('requests', dict(analytics_enabled=False, analytics_sample_rate=0.5)): + self.session.get(URL_200) + + spans = self.tracer.writer.pop() + self.assertEqual(len(spans), 1) + s = spans[0] + self.assertIsNone(s.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + def test_analytics_integration_on(self): + """ + When making a request + When an integration trace search is enabled and sample rate is set + We expect the root span to have the appropriate tag + """ + with self.override_config('requests', dict(analytics_enabled=True, analytics_sample_rate=0.5)): + self.session.get(URL_200) + + spans = self.tracer.writer.pop() + self.assertEqual(len(spans), 1) + s = spans[0] + self.assertEqual(s.get_metric(ANALYTICS_SAMPLE_RATE_KEY), 0.5) + + def test_analytics_integration_on_using_pin(self): + """ + When making a request + When an integration trace search is enabled and sample rate is set + We expect the root span to have the appropriate tag + """ + pin = Pin(service=__name__, + app='requests', + _config={ + 'service_name': __name__, + 'distributed_tracing': False, + 'split_by_domain': False, + 'analytics_enabled': True, + 'analytics_sample_rate': 0.5, + }) + pin.onto(self.session) + self.session.get(URL_200) + + spans = self.tracer.writer.pop() + self.assertEqual(len(spans), 1) + s = spans[0] + self.assertEqual(s.get_metric(ANALYTICS_SAMPLE_RATE_KEY), 0.5) + + def test_analytics_integration_on_using_pin_default(self): + """ + When making a request + When an integration trace search is enabled and sample rate is set + We expect the root span to have the appropriate tag + """ + pin = Pin(service=__name__, + app='requests', + _config={ + 'service_name': __name__, + 'distributed_tracing': False, + 'split_by_domain': False, + 'analytics_enabled': True, + }) + pin.onto(self.session) + self.session.get(URL_200) + + spans = self.tracer.writer.pop() + self.assertEqual(len(spans), 1) + s = spans[0] + self.assertEqual(s.get_metric(ANALYTICS_SAMPLE_RATE_KEY), 1.0) diff --git a/tests/contrib/requests/test_requests_distributed.py b/tests/contrib/requests/test_requests_distributed.py new file mode 100644 index 0000000000..6b4ea5280d --- /dev/null +++ b/tests/contrib/requests/test_requests_distributed.py @@ -0,0 +1,163 @@ +from requests_mock import Adapter + +from ddtrace import config + +from ...base import BaseTracerTestCase +from .test_requests import BaseRequestTestCase + + +class TestRequestsDistributed(BaseRequestTestCase, BaseTracerTestCase): + def headers_here(self, tracer, request, root_span): + # Use an additional matcher to query the request headers. + # This is because the parent_id can only been known within such a callback, + # as it's defined on the requests span, which is not available when calling register_uri + headers = request.headers + assert 'x-datadog-trace-id' in headers + assert 'x-datadog-parent-id' in headers + assert str(root_span.trace_id) == headers['x-datadog-trace-id'] + req_span = root_span.context.get_current_span() + assert 'requests.request' == req_span.name + assert str(req_span.span_id) == headers['x-datadog-parent-id'] + return True + + def headers_not_here(self, tracer, request): + headers = request.headers + assert 'x-datadog-trace-id' not in headers + assert 'x-datadog-parent-id' not in headers + return True + + def test_propagation_default(self): + # ensure by default, distributed tracing is enabled + adapter = Adapter() + self.session.mount('mock', adapter) + + with self.tracer.trace('root') as root: + def matcher(request): + return self.headers_here(self.tracer, request, root) + adapter.register_uri('GET', 'mock://datadog/foo', additional_matcher=matcher, text='bar') + resp = self.session.get('mock://datadog/foo') + assert 200 == resp.status_code + assert 'bar' == resp.text + + def test_propagation_true_global(self): + # distributed tracing can be enabled globally + adapter = Adapter() + self.session.mount('mock', adapter) + + with self.override_config('requests', dict(distributed_tracing=True)): + with self.tracer.trace('root') as root: + def matcher(request): + return self.headers_here(self.tracer, request, root) + adapter.register_uri('GET', 'mock://datadog/foo', additional_matcher=matcher, text='bar') + resp = self.session.get('mock://datadog/foo') + assert 200 == resp.status_code + assert 'bar' == resp.text + + def test_propagation_false_global(self): + # distributed tracing can be disabled globally + adapter = Adapter() + self.session.mount('mock', adapter) + + with self.override_config('requests', dict(distributed_tracing=False)): + with self.tracer.trace('root'): + def matcher(request): + return self.headers_not_here(self.tracer, request) + adapter.register_uri('GET', 'mock://datadog/foo', additional_matcher=matcher, text='bar') + resp = self.session.get('mock://datadog/foo') + assert 200 == resp.status_code + assert 'bar' == resp.text + + def test_propagation_true(self): + # ensure distributed tracing can be enabled manually + cfg = config.get_from(self.session) + cfg['distributed_tracing'] = True + adapter = Adapter() + self.session.mount('mock', adapter) + + with self.tracer.trace('root') as root: + def matcher(request): + return self.headers_here(self.tracer, request, root) + adapter.register_uri('GET', 'mock://datadog/foo', additional_matcher=matcher, text='bar') + resp = self.session.get('mock://datadog/foo') + assert 200 == resp.status_code + assert 'bar' == resp.text + + spans = self.tracer.writer.spans + root, req = spans + assert 'root' == root.name + assert 'requests.request' == req.name + assert root.trace_id == req.trace_id + assert root.span_id == req.parent_id + + def test_propagation_false(self): + # ensure distributed tracing can be disabled manually + cfg = config.get_from(self.session) + cfg['distributed_tracing'] = False + adapter = Adapter() + self.session.mount('mock', adapter) + + with self.tracer.trace('root'): + def matcher(request): + return self.headers_not_here(self.tracer, request) + adapter.register_uri('GET', 'mock://datadog/foo', additional_matcher=matcher, text='bar') + resp = self.session.get('mock://datadog/foo') + assert 200 == resp.status_code + assert 'bar' == resp.text + + def test_propagation_true_legacy_default(self): + # [Backward compatibility]: ensure users can switch the distributed + # tracing flag using the `Session` attribute + adapter = Adapter() + self.session.mount('mock', adapter) + + with self.tracer.trace('root') as root: + def matcher(request): + return self.headers_here(self.tracer, request, root) + adapter.register_uri('GET', 'mock://datadog/foo', additional_matcher=matcher, text='bar') + resp = self.session.get('mock://datadog/foo') + assert 200 == resp.status_code + assert 'bar' == resp.text + + spans = self.tracer.writer.spans + root, req = spans + assert 'root' == root.name + assert 'requests.request' == req.name + assert root.trace_id == req.trace_id + assert root.span_id == req.parent_id + + def test_propagation_true_legacy(self): + # [Backward compatibility]: ensure users can switch the distributed + # tracing flag using the `Session` attribute + adapter = Adapter() + self.session.mount('mock', adapter) + self.session.distributed_tracing = True + + with self.tracer.trace('root') as root: + def matcher(request): + return self.headers_here(self.tracer, request, root) + adapter.register_uri('GET', 'mock://datadog/foo', additional_matcher=matcher, text='bar') + resp = self.session.get('mock://datadog/foo') + assert 200 == resp.status_code + assert 'bar' == resp.text + + spans = self.tracer.writer.spans + root, req = spans + assert 'root' == root.name + assert 'requests.request' == req.name + assert root.trace_id == req.trace_id + assert root.span_id == req.parent_id + + def test_propagation_false_legacy(self): + # [Backward compatibility]: ensure users can switch the distributed + # tracing flag using the `Session` attribute + adapter = Adapter() + self.session.mount('mock', adapter) + self.session.distributed_tracing = False + + with self.tracer.trace('root'): + def matcher(request): + return self.headers_not_here(self.tracer, request) + adapter.register_uri('GET', 'mock://datadog/foo', additional_matcher=matcher, text='bar') + resp = self.session.get('mock://datadog/foo') + assert 200 == resp.status_code + assert 'bar' == resp.text diff --git a/tests/contrib/requests_gevent/__init__.py b/tests/contrib/requests_gevent/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/requests_gevent/test_requests_gevent.py b/tests/contrib/requests_gevent/test_requests_gevent.py new file mode 100644 index 0000000000..aa576b7c29 --- /dev/null +++ b/tests/contrib/requests_gevent/test_requests_gevent.py @@ -0,0 +1,47 @@ +import sys +import unittest + + +class TestRequestsGevent(unittest.TestCase): + def test_patch(self): + """ + Patching `requests` before `gevent` monkeypatching + + This is a regression test for https://github.com/DataDog/dd-trace-py/issues/506 + + When using `ddtrace-run` along with `requests` and `gevent` our patching causes + `requests` and `urllib3` to get loaded before `gevent` has a chance to monkey patch. + + This causes `gevent` to show a warning and under certain versions cause + a maxiumum recursion exception to be raised. + """ + # Assert none of our modules have been imported yet + # DEV: This regression test depends on being able to control import order of these modules + # DEV: This is not entirely necessary but is a nice safe guard + self.assertNotIn('ddtrace', sys.modules) + self.assertNotIn('gevent', sys.modules) + self.assertNotIn('requests', sys.modules) + self.assertNotIn('urllib3', sys.modules) + + try: + # Import ddtrace and patch only `requests` + # DEV: We do not need to patch `gevent` for the exception to occur + from ddtrace import patch + patch(requests=True) + + # Import gevent and monkeypatch + from gevent import monkey + monkey.patch_all() + + # This is typically what will fail if `requests` (or `urllib3`) + # gets loaded before running `monkey.patch_all()` + # DEV: We are testing that no exception gets raised + import requests + + # DEV: We **MUST** use an HTTPS request, that is what causes the issue + requests.get('https://httpbin.org/get') + + finally: + # Ensure we always unpatch `requests` when we are done + from ddtrace.contrib.requests import unpatch + unpatch() diff --git a/tests/contrib/sqlalchemy/__init__.py b/tests/contrib/sqlalchemy/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/sqlalchemy/mixins.py b/tests/contrib/sqlalchemy/mixins.py new file mode 100644 index 0000000000..a73a400717 --- /dev/null +++ b/tests/contrib/sqlalchemy/mixins.py @@ -0,0 +1,236 @@ +# stdlib +import contextlib + +# 3rd party +from sqlalchemy.ext.declarative import declarative_base +from sqlalchemy.orm import sessionmaker +from sqlalchemy import ( + create_engine, + Column, + Integer, + String, +) + +# project +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.contrib.sqlalchemy import trace_engine + +# testing +from tests.opentracer.utils import init_tracer + + +Base = declarative_base() + + +class Player(Base): + """Player entity used to test SQLAlchemy ORM""" + __tablename__ = 'players' + + id = Column(Integer, primary_key=True) + name = Column(String(20)) + + +class SQLAlchemyTestMixin(object): + """SQLAlchemy test mixin that includes a complete set of tests + that must be executed for different engine. When a new test (or + a regression test) should be added to SQLAlchemy test suite, a new + entry must be appended here so that it will be executed for all + available and supported engines. If the test is specific to only + one engine, that test must be added to the specific `TestCase` + implementation. + + To support a new engine, create a new `TestCase` that inherits from + `SQLAlchemyTestMixin` and `TestCase`. Then you must define the following + static class variables: + * VENDOR: the database vendor name + * SQL_DB: the `sql.db` tag that we expect (it's the name of the database available in the `.env` file) + * SERVICE: the service that we expect by default + * ENGINE_ARGS: all arguments required to create the engine + + To check specific tags in each test, you must implement the + `check_meta(self, span)` method. + """ + VENDOR = None + SQL_DB = None + SERVICE = None + ENGINE_ARGS = None + + def create_engine(self, engine_args): + # create a SQLAlchemy engine + config = dict(engine_args) + url = config.pop('url') + return create_engine(url, **config) + + @contextlib.contextmanager + def connection(self): + # context manager that provides a connection + # to the underlying database + try: + conn = self.engine.connect() + yield conn + finally: + conn.close() + + def check_meta(self, span): + # function that can be implemented according to the + # specific engine implementation + return + + def setUp(self): + super(SQLAlchemyTestMixin, self).setUp() + + # create an engine with the given arguments + self.engine = self.create_engine(self.ENGINE_ARGS) + + # create the database / entities and prepare a session for the test + Base.metadata.drop_all(bind=self.engine) + Base.metadata.create_all(self.engine, checkfirst=False) + Session = sessionmaker(bind=self.engine) + self.session = Session() + + # trace the engine + trace_engine(self.engine, self.tracer) + + def tearDown(self): + # clear the database and dispose the engine + self.session.close() + Base.metadata.drop_all(bind=self.engine) + self.engine.dispose() + super(SQLAlchemyTestMixin, self).tearDown() + + def test_orm_insert(self): + # ensures that the ORM session is traced + wayne = Player(id=1, name='wayne') + self.session.add(wayne) + self.session.commit() + + traces = self.tracer.writer.pop_traces() + # trace composition + assert len(traces) == 1 + assert len(traces[0]) == 1 + span = traces[0][0] + # span fields + assert span.name == '{}.query'.format(self.VENDOR) + assert span.service == self.SERVICE + assert 'INSERT INTO players' in span.resource + assert span.get_tag('sql.db') == self.SQL_DB + assert span.get_metric('sql.rows') == 1 + self.check_meta(span) + assert span.span_type == 'sql' + assert span.error == 0 + assert span.duration > 0 + + def test_session_query(self): + # ensures that the Session queries are traced + out = list(self.session.query(Player).filter_by(name='wayne')) + assert len(out) == 0 + + traces = self.tracer.writer.pop_traces() + # trace composition + assert len(traces) == 1 + assert len(traces[0]) == 1 + span = traces[0][0] + # span fields + assert span.name == '{}.query'.format(self.VENDOR) + assert span.service == self.SERVICE + assert 'SELECT players.id AS players_id, players.name AS players_name \nFROM players \nWHERE players.name' \ + in span.resource + assert span.get_tag('sql.db') == self.SQL_DB + self.check_meta(span) + assert span.span_type == 'sql' + assert span.error == 0 + assert span.duration > 0 + + def test_engine_connect_execute(self): + # ensures that engine.connect() is properly traced + with self.connection() as conn: + rows = conn.execute('SELECT * FROM players').fetchall() + assert len(rows) == 0 + + traces = self.tracer.writer.pop_traces() + # trace composition + assert len(traces) == 1 + assert len(traces[0]) == 1 + span = traces[0][0] + # span fields + assert span.name == '{}.query'.format(self.VENDOR) + assert span.service == self.SERVICE + assert span.resource == 'SELECT * FROM players' + assert span.get_tag('sql.db') == self.SQL_DB + self.check_meta(span) + assert span.span_type == 'sql' + assert span.error == 0 + assert span.duration > 0 + + def test_traced_service(self): + # ensures that the service is set as expected + services = self.tracer.writer.pop_services() + expected = {} + assert services == expected + + def test_opentracing(self): + """Ensure that sqlalchemy works with the opentracer.""" + ot_tracer = init_tracer('sqlalch_svc', self.tracer) + + with ot_tracer.start_active_span('sqlalch_op'): + with self.connection() as conn: + rows = conn.execute('SELECT * FROM players').fetchall() + assert len(rows) == 0 + + traces = self.tracer.writer.pop_traces() + # trace composition + assert len(traces) == 1 + assert len(traces[0]) == 2 + ot_span, dd_span = traces[0] + + # confirm the parenting + assert ot_span.parent_id is None + assert dd_span.parent_id == ot_span.span_id + + assert ot_span.name == 'sqlalch_op' + assert ot_span.service == 'sqlalch_svc' + + # span fields + assert dd_span.name == '{}.query'.format(self.VENDOR) + assert dd_span.service == self.SERVICE + assert dd_span.resource == 'SELECT * FROM players' + assert dd_span.get_tag('sql.db') == self.SQL_DB + assert dd_span.span_type == 'sql' + assert dd_span.error == 0 + assert dd_span.duration > 0 + + def test_analytics_default(self): + # ensures that the ORM session is traced + wayne = Player(id=1, name='wayne') + self.session.add(wayne) + self.session.commit() + + spans = self.get_spans() + self.assertEqual(len(spans), 1) + self.assertIsNone(spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + def test_analytics_with_rate(self): + with self.override_config( + 'sqlalchemy', + dict(analytics_enabled=True, analytics_sample_rate=0.5) + ): + wayne = Player(id=1, name='wayne') + self.session.add(wayne) + self.session.commit() + + spans = self.get_spans() + self.assertEqual(len(spans), 1) + self.assertEqual(spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY), 0.5) + + def test_analytics_without_rate(self): + with self.override_config( + 'sqlalchemy', + dict(analytics_enabled=True) + ): + wayne = Player(id=1, name='wayne') + self.session.add(wayne) + self.session.commit() + + spans = self.get_spans() + self.assertEqual(len(spans), 1) + self.assertEqual(spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY), 1.0) diff --git a/tests/contrib/sqlalchemy/test_mysql.py b/tests/contrib/sqlalchemy/test_mysql.py new file mode 100644 index 0000000000..2e2037c100 --- /dev/null +++ b/tests/contrib/sqlalchemy/test_mysql.py @@ -0,0 +1,51 @@ +from sqlalchemy.exc import ProgrammingError +import pytest + +from .mixins import SQLAlchemyTestMixin +from ..config import MYSQL_CONFIG +from ...base import BaseTracerTestCase + + +class MysqlConnectorTestCase(SQLAlchemyTestMixin, BaseTracerTestCase): + """TestCase for mysql-connector engine""" + VENDOR = 'mysql' + SQL_DB = 'test' + SERVICE = 'mysql' + ENGINE_ARGS = {'url': 'mysql+mysqlconnector://%(user)s:%(password)s@%(host)s:%(port)s/%(database)s' % MYSQL_CONFIG} + + def setUp(self): + super(MysqlConnectorTestCase, self).setUp() + + def tearDown(self): + super(MysqlConnectorTestCase, self).tearDown() + + def check_meta(self, span): + # check database connection tags + self.assertEqual(span.get_tag('out.host'), MYSQL_CONFIG['host']) + self.assertEqual(span.get_metric('out.port'), MYSQL_CONFIG['port']) + + def test_engine_execute_errors(self): + # ensures that SQL errors are reported + with pytest.raises(ProgrammingError): + with self.connection() as conn: + conn.execute('SELECT * FROM a_wrong_table').fetchall() + + traces = self.tracer.writer.pop_traces() + # trace composition + self.assertEqual(len(traces), 1) + self.assertEqual(len(traces[0]), 1) + span = traces[0][0] + # span fields + self.assertEqual(span.name, '{}.query'.format(self.VENDOR)) + self.assertEqual(span.service, self.SERVICE) + self.assertEqual(span.resource, 'SELECT * FROM a_wrong_table') + self.assertEqual(span.get_tag('sql.db'), self.SQL_DB) + self.assertIsNone(span.get_tag('sql.rows') or span.get_metric('sql.rows')) + self.check_meta(span) + self.assertEqual(span.span_type, 'sql') + self.assertTrue(span.duration > 0) + # check the error + self.assertEqual(span.error, 1) + self.assertEqual(span.get_tag('error.type'), 'mysql.connector.errors.ProgrammingError') + self.assertTrue("Table 'test.a_wrong_table' doesn't exist" in span.get_tag('error.msg')) + self.assertTrue("Table 'test.a_wrong_table' doesn't exist" in span.get_tag('error.stack')) diff --git a/tests/contrib/sqlalchemy/test_patch.py b/tests/contrib/sqlalchemy/test_patch.py new file mode 100644 index 0000000000..05a9a0e27c --- /dev/null +++ b/tests/contrib/sqlalchemy/test_patch.py @@ -0,0 +1,105 @@ +import sqlalchemy + +from ddtrace import Pin +from ddtrace.contrib.sqlalchemy import patch, unpatch +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY + +from ..config import POSTGRES_CONFIG +from ...base import BaseTracerTestCase + + +class SQLAlchemyPatchTestCase(BaseTracerTestCase): + """TestCase that checks if the engine is properly traced + when the `patch()` method is used. + """ + def setUp(self): + super(SQLAlchemyPatchTestCase, self).setUp() + + # create a traced engine with the given arguments + # and configure the current PIN instance + patch() + dsn = 'postgresql://%(user)s:%(password)s@%(host)s:%(port)s/%(dbname)s' % POSTGRES_CONFIG + self.engine = sqlalchemy.create_engine(dsn) + Pin.override(self.engine, tracer=self.tracer) + + # prepare a connection + self.conn = self.engine.connect() + + def tearDown(self): + super(SQLAlchemyPatchTestCase, self).tearDown() + + # clear the database and dispose the engine + self.conn.close() + self.engine.dispose() + unpatch() + + def test_engine_traced(self): + # ensures that the engine is traced + rows = self.conn.execute('SELECT 1').fetchall() + assert len(rows) == 1 + + traces = self.tracer.writer.pop_traces() + # trace composition + assert len(traces) == 1 + assert len(traces[0]) == 1 + span = traces[0][0] + # check subset of span fields + assert span.name == 'postgres.query' + assert span.service == 'postgres' + assert span.error == 0 + assert span.duration > 0 + + def test_engine_pin_service(self): + # ensures that the engine service is updated with the PIN object + Pin.override(self.engine, service='replica-db') + rows = self.conn.execute('SELECT 1').fetchall() + assert len(rows) == 1 + + traces = self.tracer.writer.pop_traces() + # trace composition + assert len(traces) == 1 + assert len(traces[0]) == 1 + span = traces[0][0] + # check subset of span fields + assert span.name == 'postgres.query' + assert span.service == 'replica-db' + assert span.error == 0 + assert span.duration > 0 + + def test_analytics_sample_rate(self): + # [ , ] + matrix = [ + # Default, not enabled, not set + [dict(), None], + + # Not enabled, but sample rate set + [dict(analytics_sample_rate=0.5), None], + + # Enabled and rate set + [dict(analytics_enabled=True, analytics_sample_rate=0.5), 0.5], + [dict(analytics_enabled=True, analytics_sample_rate=1), 1.0], + [dict(analytics_enabled=True, analytics_sample_rate=0), 0], + [dict(analytics_enabled=True, analytics_sample_rate=True), 1.0], + [dict(analytics_enabled=True, analytics_sample_rate=False), 0], + + # Disabled and rate set + [dict(analytics_enabled=False, analytics_sample_rate=0.5), None], + + # Enabled and rate not set + [dict(analytics_enabled=True), 1.0], + ] + for config, metric_value in matrix: + with self.override_config('sqlalchemy', config): + self.conn.execute('SELECT 1').fetchall() + + root = self.get_root_span() + root.assert_matches(name='postgres.query') + + # If the value is None assert it was not set, otherwise assert the expected value + # DEV: root.assert_metrics(metrics, exact=True) won't work here since we have another sample + # rate keys getting added + if metric_value is None: + assert ANALYTICS_SAMPLE_RATE_KEY not in root.metrics + else: + assert root.metrics[ANALYTICS_SAMPLE_RATE_KEY] == metric_value + self.reset() diff --git a/tests/contrib/sqlalchemy/test_postgres.py b/tests/contrib/sqlalchemy/test_postgres.py new file mode 100644 index 0000000000..7832fa4d19 --- /dev/null +++ b/tests/contrib/sqlalchemy/test_postgres.py @@ -0,0 +1,64 @@ +import psycopg2 + +from sqlalchemy.exc import ProgrammingError + +import pytest + +from .mixins import SQLAlchemyTestMixin +from ..config import POSTGRES_CONFIG +from ...base import BaseTracerTestCase + + +class PostgresTestCase(SQLAlchemyTestMixin, BaseTracerTestCase): + """TestCase for Postgres Engine""" + VENDOR = 'postgres' + SQL_DB = 'postgres' + SERVICE = 'postgres' + ENGINE_ARGS = {'url': 'postgresql://%(user)s:%(password)s@%(host)s:%(port)s/%(dbname)s' % POSTGRES_CONFIG} + + def setUp(self): + super(PostgresTestCase, self).setUp() + + def tearDown(self): + super(PostgresTestCase, self).tearDown() + + def check_meta(self, span): + # check database connection tags + self.assertEqual(span.get_tag('out.host'), POSTGRES_CONFIG['host']) + self.assertEqual(span.get_metric('out.port'), POSTGRES_CONFIG['port']) + + def test_engine_execute_errors(self): + # ensures that SQL errors are reported + with pytest.raises(ProgrammingError): + with self.connection() as conn: + conn.execute('SELECT * FROM a_wrong_table').fetchall() + + traces = self.tracer.writer.pop_traces() + # trace composition + self.assertEqual(len(traces), 1) + self.assertEqual(len(traces[0]), 1) + span = traces[0][0] + # span fields + self.assertEqual(span.name, '{}.query'.format(self.VENDOR)) + self.assertEqual(span.service, self.SERVICE) + self.assertEqual(span.resource, 'SELECT * FROM a_wrong_table') + self.assertEqual(span.get_tag('sql.db'), self.SQL_DB) + self.assertIsNone(span.get_tag('sql.rows') or span.get_metric('sql.rows')) + self.check_meta(span) + self.assertEqual(span.span_type, 'sql') + self.assertTrue(span.duration > 0) + # check the error + self.assertEqual(span.error, 1) + self.assertTrue('relation "a_wrong_table" does not exist' in span.get_tag('error.msg')) + assert 'psycopg2.errors.UndefinedTable' in span.get_tag('error.type') + assert 'UndefinedTable: relation "a_wrong_table" does not exist' in span.get_tag('error.stack') + + +class PostgresCreatorTestCase(PostgresTestCase): + """TestCase for Postgres Engine that includes the same tests set + of `PostgresTestCase`, but it uses a specific `creator` function. + """ + VENDOR = 'postgres' + SQL_DB = 'postgres' + SERVICE = 'postgres' + ENGINE_ARGS = {'url': 'postgresql://', 'creator': lambda: psycopg2.connect(**POSTGRES_CONFIG)} diff --git a/tests/contrib/sqlalchemy/test_sqlite.py b/tests/contrib/sqlalchemy/test_sqlite.py new file mode 100644 index 0000000000..b3a78b4e90 --- /dev/null +++ b/tests/contrib/sqlalchemy/test_sqlite.py @@ -0,0 +1,45 @@ +import pytest + +from sqlalchemy.exc import OperationalError + +from .mixins import SQLAlchemyTestMixin +from ...base import BaseTracerTestCase + + +class SQLiteTestCase(SQLAlchemyTestMixin, BaseTracerTestCase): + """TestCase for the SQLite engine""" + VENDOR = 'sqlite' + SQL_DB = ':memory:' + SERVICE = 'sqlite' + ENGINE_ARGS = {'url': 'sqlite:///:memory:'} + + def setUp(self): + super(SQLiteTestCase, self).setUp() + + def tearDown(self): + super(SQLiteTestCase, self).tearDown() + + def test_engine_execute_errors(self): + # ensures that SQL errors are reported + with pytest.raises(OperationalError): + with self.connection() as conn: + conn.execute('SELECT * FROM a_wrong_table').fetchall() + + traces = self.tracer.writer.pop_traces() + # trace composition + self.assertEqual(len(traces), 1) + self.assertEqual(len(traces[0]), 1) + span = traces[0][0] + # span fields + self.assertEqual(span.name, '{}.query'.format(self.VENDOR)) + self.assertEqual(span.service, self.SERVICE) + self.assertEqual(span.resource, 'SELECT * FROM a_wrong_table') + self.assertEqual(span.get_tag('sql.db'), self.SQL_DB) + self.assertIsNone(span.get_tag('sql.rows') or span.get_metric('sql.rows')) + self.assertEqual(span.span_type, 'sql') + self.assertTrue(span.duration > 0) + # check the error + self.assertEqual(span.error, 1) + self.assertEqual(span.get_tag('error.msg'), 'no such table: a_wrong_table') + self.assertTrue('OperationalError' in span.get_tag('error.type')) + self.assertTrue('OperationalError: no such table: a_wrong_table' in span.get_tag('error.stack')) diff --git a/tests/contrib/sqlite3/__init__.py b/tests/contrib/sqlite3/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/sqlite3/test_sqlite3.py b/tests/contrib/sqlite3/test_sqlite3.py new file mode 100644 index 0000000000..e1294bd053 --- /dev/null +++ b/tests/contrib/sqlite3/test_sqlite3.py @@ -0,0 +1,324 @@ +# stdlib +import sqlite3 +import time + +# project +import ddtrace +from ddtrace import Pin +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.contrib.sqlite3 import connection_factory +from ddtrace.contrib.sqlite3.patch import patch, unpatch, TracedSQLiteCursor +from ddtrace.ext import errors + +# testing +from tests.opentracer.utils import init_tracer +from ...base import BaseTracerTestCase + + +class TestSQLite(BaseTracerTestCase): + def setUp(self): + super(TestSQLite, self).setUp() + patch() + + def tearDown(self): + unpatch() + super(TestSQLite, self).tearDown() + + def test_backwards_compat(self): + # a small test to ensure that if the previous interface is used + # things still work + factory = connection_factory(self.tracer, service='my_db_service') + conn = sqlite3.connect(':memory:', factory=factory) + q = 'select * from sqlite_master' + cursor = conn.execute(q) + self.assertIsInstance(cursor, TracedSQLiteCursor) + assert not cursor.fetchall() + assert not self.spans + + def test_service_info(self): + backup_tracer = ddtrace.tracer + ddtrace.tracer = self.tracer + + sqlite3.connect(':memory:') + + services = self.tracer.writer.pop_services() + self.assertEqual(services, {}) + + ddtrace.tracer = backup_tracer + + def test_sqlite(self): + # ensure we can trace multiple services without stomping + services = ['db', 'another'] + for service in services: + db = sqlite3.connect(':memory:') + pin = Pin.get_from(db) + assert pin + pin.clone( + service=service, + tracer=self.tracer).onto(db) + + # Ensure we can run a query and it's correctly traced + q = 'select * from sqlite_master' + start = time.time() + cursor = db.execute(q) + self.assertIsInstance(cursor, TracedSQLiteCursor) + rows = cursor.fetchall() + end = time.time() + assert not rows + self.assert_structure( + dict(name='sqlite.query', span_type='sql', resource=q, service=service, error=0), + ) + root = self.get_root_span() + self.assertIsNone(root.get_tag('sql.query')) + assert start <= root.start <= end + assert root.duration <= end - start + self.reset() + + # run a query with an error and ensure all is well + q = 'select * from some_non_existant_table' + try: + db.execute(q) + except Exception: + pass + else: + assert 0, 'should have an error' + + self.assert_structure( + dict(name='sqlite.query', span_type='sql', resource=q, service=service, error=1), + ) + root = self.get_root_span() + self.assertIsNone(root.get_tag('sql.query')) + self.assertIsNotNone(root.get_tag(errors.ERROR_STACK)) + self.assertIn('OperationalError', root.get_tag(errors.ERROR_TYPE)) + self.assertIn('no such table', root.get_tag(errors.ERROR_MSG)) + self.reset() + + def test_sqlite_fetchall_is_traced(self): + q = 'select * from sqlite_master' + + # Not traced by default + connection = self._given_a_traced_connection(self.tracer) + cursor = connection.execute(q) + cursor.fetchall() + self.assert_structure(dict(name='sqlite.query', resource=q)) + self.reset() + + with self.override_config('dbapi2', dict(trace_fetch_methods=True)): + connection = self._given_a_traced_connection(self.tracer) + cursor = connection.execute(q) + cursor.fetchall() + + # We have two spans side by side + query_span, fetchall_span = self.get_root_spans() + + # Assert query + query_span.assert_structure(dict(name='sqlite.query', resource=q)) + + # Assert fetchall + fetchall_span.assert_structure(dict(name='sqlite.query.fetchall', resource=q, span_type='sql', error=0)) + self.assertIsNone(fetchall_span.get_tag('sql.query')) + + def test_sqlite_fetchone_is_traced(self): + q = 'select * from sqlite_master' + + # Not traced by default + connection = self._given_a_traced_connection(self.tracer) + cursor = connection.execute(q) + cursor.fetchone() + self.assert_structure(dict(name='sqlite.query', resource=q)) + self.reset() + + with self.override_config('dbapi2', dict(trace_fetch_methods=True)): + connection = self._given_a_traced_connection(self.tracer) + cursor = connection.execute(q) + cursor.fetchone() + + # We have two spans side by side + query_span, fetchone_span = self.get_root_spans() + + # Assert query + query_span.assert_structure(dict(name='sqlite.query', resource=q)) + + # Assert fetchone + fetchone_span.assert_structure( + dict( + name='sqlite.query.fetchone', + resource=q, + span_type='sql', + error=0, + ), + ) + self.assertIsNone(fetchone_span.get_tag('sql.query')) + + def test_sqlite_fetchmany_is_traced(self): + q = 'select * from sqlite_master' + + # Not traced by default + connection = self._given_a_traced_connection(self.tracer) + cursor = connection.execute(q) + cursor.fetchmany(123) + self.assert_structure(dict(name='sqlite.query', resource=q)) + self.reset() + + with self.override_config('dbapi2', dict(trace_fetch_methods=True)): + connection = self._given_a_traced_connection(self.tracer) + cursor = connection.execute(q) + cursor.fetchmany(123) + + # We have two spans side by side + query_span, fetchmany_span = self.get_root_spans() + + # Assert query + query_span.assert_structure(dict(name='sqlite.query', resource=q)) + + # Assert fetchmany + fetchmany_span.assert_structure( + dict( + name='sqlite.query.fetchmany', + resource=q, + span_type='sql', + error=0, + metrics={'db.fetch.size': 123}, + ), + ) + self.assertIsNone(fetchmany_span.get_tag('sql.query')) + + def test_sqlite_ot(self): + """Ensure sqlite works with the opentracer.""" + ot_tracer = init_tracer('sqlite_svc', self.tracer) + + # Ensure we can run a query and it's correctly traced + q = 'select * from sqlite_master' + with ot_tracer.start_active_span('sqlite_op'): + db = sqlite3.connect(':memory:') + pin = Pin.get_from(db) + assert pin + pin.clone(tracer=self.tracer).onto(db) + cursor = db.execute(q) + rows = cursor.fetchall() + assert not rows + + self.assert_structure( + dict(name='sqlite_op', service='sqlite_svc'), + ( + dict(name='sqlite.query', span_type='sql', resource=q, error=0), + ) + ) + self.reset() + + with self.override_config('dbapi2', dict(trace_fetch_methods=True)): + with ot_tracer.start_active_span('sqlite_op'): + db = sqlite3.connect(':memory:') + pin = Pin.get_from(db) + assert pin + pin.clone(tracer=self.tracer).onto(db) + cursor = db.execute(q) + rows = cursor.fetchall() + assert not rows + + self.assert_structure( + dict(name='sqlite_op', service='sqlite_svc'), + ( + dict(name='sqlite.query', span_type='sql', resource=q, error=0), + dict(name='sqlite.query.fetchall', span_type='sql', resource=q, error=0), + ), + ) + + def test_commit(self): + connection = self._given_a_traced_connection(self.tracer) + connection.commit() + self.assertEqual(len(self.spans), 1) + span = self.spans[0] + self.assertEqual(span.service, 'sqlite') + self.assertEqual(span.name, 'sqlite.connection.commit') + + def test_rollback(self): + connection = self._given_a_traced_connection(self.tracer) + connection.rollback() + self.assert_structure( + dict(name='sqlite.connection.rollback', service='sqlite'), + ) + + def test_patch_unpatch(self): + # Test patch idempotence + patch() + patch() + + db = sqlite3.connect(':memory:') + pin = Pin.get_from(db) + assert pin + pin.clone(tracer=self.tracer).onto(db) + db.cursor().execute('select \'blah\'').fetchall() + + self.assert_structure( + dict(name='sqlite.query'), + ) + self.reset() + + # Test unpatch + unpatch() + + db = sqlite3.connect(':memory:') + db.cursor().execute('select \'blah\'').fetchall() + + self.assert_has_no_spans() + + # Test patch again + patch() + + db = sqlite3.connect(':memory:') + pin = Pin.get_from(db) + assert pin + pin.clone(tracer=self.tracer).onto(db) + db.cursor().execute('select \'blah\'').fetchall() + + self.assert_structure( + dict(name='sqlite.query'), + ) + + def _given_a_traced_connection(self, tracer): + db = sqlite3.connect(':memory:') + Pin.get_from(db).clone(tracer=tracer).onto(db) + return db + + def test_analytics_default(self): + q = 'select * from sqlite_master' + connection = self._given_a_traced_connection(self.tracer) + cursor = connection.execute(q) + cursor.fetchall() + + spans = self.get_spans() + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertIsNone(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + def test_analytics_with_rate(self): + with self.override_config( + 'dbapi2', + dict(analytics_enabled=True, analytics_sample_rate=0.5) + ): + q = 'select * from sqlite_master' + connection = self._given_a_traced_connection(self.tracer) + cursor = connection.execute(q) + cursor.fetchall() + + spans = self.get_spans() + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY), 0.5) + + def test_analytics_without_rate(self): + with self.override_config( + 'dbapi2', + dict(analytics_enabled=True) + ): + q = 'select * from sqlite_master' + connection = self._given_a_traced_connection(self.tracer) + cursor = connection.execute(q) + cursor.fetchall() + + spans = self.get_spans() + + self.assertEqual(len(spans), 1) + span = spans[0] + self.assertEqual(span.get_metric(ANALYTICS_SAMPLE_RATE_KEY), 1.0) diff --git a/tests/contrib/test_utils.py b/tests/contrib/test_utils.py new file mode 100644 index 0000000000..cdbb53af79 --- /dev/null +++ b/tests/contrib/test_utils.py @@ -0,0 +1,67 @@ +from functools import partial +from ddtrace.utils.importlib import func_name + + +class SomethingCallable(object): + """ + A dummy class that implements __call__(). + """ + value = 42 + + def __call__(self): + return 'something' + + def me(self): + return self + + @staticmethod + def add(a, b): + return a + b + + @classmethod + def answer(cls): + return cls.value + + +def some_function(): + """ + A function doing nothing. + """ + return 'nothing' + + +def minus(a, b): + return a - b + + +minus_two = partial(minus, b=2) # partial funcs need special handling (no module) + +# disabling flake8 test below, yes, declaring a func like this is bad, we know +plus_three = lambda x: x + 3 # noqa: E731 + + +class TestContrib(object): + """ + Ensure that contrib utility functions handles corner cases + """ + def test_func_name(self): + # check that func_name works on anything callable, not only funcs. + assert 'nothing' == some_function() + assert 'tests.contrib.test_utils.some_function' == func_name(some_function) + + f = SomethingCallable() + assert 'something' == f() + assert 'tests.contrib.test_utils.SomethingCallable' == func_name(f) + + assert f == f.me() + assert 'tests.contrib.test_utils.me' == func_name(f.me) + assert 3 == f.add(1, 2) + assert 'tests.contrib.test_utils.add' == func_name(f.add) + assert 42 == f.answer() + assert 'tests.contrib.test_utils.answer' == func_name(f.answer) + + assert 'tests.contrib.test_utils.minus' == func_name(minus) + assert 5 == minus_two(7) + assert 'partial' == func_name(minus_two) + assert 10 == plus_three(7) + assert 'tests.contrib.test_utils.' == func_name(plus_three) diff --git a/tests/contrib/tornado/__init__.py b/tests/contrib/tornado/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/tornado/test_config.py b/tests/contrib/tornado/test_config.py new file mode 100644 index 0000000000..96b03cbbb8 --- /dev/null +++ b/tests/contrib/tornado/test_config.py @@ -0,0 +1,37 @@ +from ddtrace.filters import FilterRequestsOnUrl + +from .utils import TornadoTestCase + + +class TestTornadoSettings(TornadoTestCase): + """ + Ensure that Tornado web Application configures properly + the given tracer. + """ + def get_settings(self): + # update tracer settings + return { + 'datadog_trace': { + 'default_service': 'custom-tornado', + 'tags': {'env': 'production', 'debug': 'false'}, + 'enabled': False, + 'agent_hostname': 'dd-agent.service.consul', + 'agent_port': 8126, + 'settings': { + 'FILTERS': [ + FilterRequestsOnUrl(r'http://test\.example\.com'), + ], + }, + }, + } + + def test_tracer_is_properly_configured(self): + # the tracer must be properly configured + assert self.tracer.tags == {'env': 'production', 'debug': 'false'} + assert self.tracer.enabled is False + assert self.tracer.writer.api.hostname == 'dd-agent.service.consul' + assert self.tracer.writer.api.port == 8126 + # settings are properly passed + assert self.tracer.writer._filters is not None + assert len(self.tracer.writer._filters) == 1 + assert isinstance(self.tracer.writer._filters[0], FilterRequestsOnUrl) diff --git a/tests/contrib/tornado/test_executor_decorator.py b/tests/contrib/tornado/test_executor_decorator.py new file mode 100644 index 0000000000..f46e3849e4 --- /dev/null +++ b/tests/contrib/tornado/test_executor_decorator.py @@ -0,0 +1,181 @@ +import unittest + +from ddtrace.contrib.tornado.compat import futures_available +from ddtrace.ext import http + +from tornado import version_info + +from .utils import TornadoTestCase +from ...utils import assert_span_http_status_code + + +class TestTornadoExecutor(TornadoTestCase): + """ + Ensure that Tornado web handlers are properly traced even if + ``@run_on_executor`` decorator is used. + """ + def test_on_executor_handler(self): + # it should trace a handler that uses @run_on_executor + response = self.fetch('/executor_handler/') + assert 200 == response.code + + traces = self.tracer.writer.pop_traces() + assert 2 == len(traces) + assert 1 == len(traces[0]) + assert 1 == len(traces[1]) + + # this trace yields the execution of the thread + request_span = traces[1][0] + assert 'tornado-web' == request_span.service + assert 'tornado.request' == request_span.name + assert 'web' == request_span.span_type + assert 'tests.contrib.tornado.web.app.ExecutorHandler' == request_span.resource + assert 'GET' == request_span.get_tag('http.method') + assert_span_http_status_code(request_span, 200) + assert self.get_url('/executor_handler/') == request_span.get_tag(http.URL) + assert 0 == request_span.error + assert request_span.duration >= 0.05 + + # this trace is executed in a different thread + executor_span = traces[0][0] + assert 'tornado-web' == executor_span.service + assert 'tornado.executor.with' == executor_span.name + assert executor_span.parent_id == request_span.span_id + assert 0 == executor_span.error + assert executor_span.duration >= 0.05 + + @unittest.skipUnless(futures_available, 'Futures must be available to test direct submit') + def test_on_executor_submit(self): + # it should propagate the context when a handler uses directly the `executor.submit()` + response = self.fetch('/executor_submit_handler/') + assert 200 == response.code + + traces = self.tracer.writer.pop_traces() + assert 2 == len(traces) + assert 1 == len(traces[0]) + assert 1 == len(traces[1]) + + # this trace yields the execution of the thread + request_span = traces[1][0] + assert 'tornado-web' == request_span.service + assert 'tornado.request' == request_span.name + assert 'web' == request_span.span_type + assert 'tests.contrib.tornado.web.app.ExecutorSubmitHandler' == request_span.resource + assert 'GET' == request_span.get_tag('http.method') + assert_span_http_status_code(request_span, 200) + assert self.get_url('/executor_submit_handler/') == request_span.get_tag(http.URL) + assert 0 == request_span.error + assert request_span.duration >= 0.05 + + # this trace is executed in a different thread + executor_span = traces[0][0] + assert 'tornado-web' == executor_span.service + assert 'tornado.executor.query' == executor_span.name + assert executor_span.parent_id == request_span.span_id + assert 0 == executor_span.error + assert executor_span.duration >= 0.05 + + def test_on_executor_exception_handler(self): + # it should trace a handler that uses @run_on_executor + response = self.fetch('/executor_exception/') + assert 500 == response.code + + traces = self.tracer.writer.pop_traces() + assert 2 == len(traces) + assert 1 == len(traces[0]) + assert 1 == len(traces[1]) + + # this trace yields the execution of the thread + request_span = traces[1][0] + assert 'tornado-web' == request_span.service + assert 'tornado.request' == request_span.name + assert 'web' == request_span.span_type + assert 'tests.contrib.tornado.web.app.ExecutorExceptionHandler' == request_span.resource + assert 'GET' == request_span.get_tag('http.method') + assert_span_http_status_code(request_span, 500) + assert self.get_url('/executor_exception/') == request_span.get_tag(http.URL) + assert 1 == request_span.error + assert 'Ouch!' == request_span.get_tag('error.msg') + assert 'Exception: Ouch!' in request_span.get_tag('error.stack') + + # this trace is executed in a different thread + executor_span = traces[0][0] + assert 'tornado-web' == executor_span.service + assert 'tornado.executor.with' == executor_span.name + assert executor_span.parent_id == request_span.span_id + assert 1 == executor_span.error + assert 'Ouch!' == executor_span.get_tag('error.msg') + assert 'Exception: Ouch!' in executor_span.get_tag('error.stack') + + @unittest.skipIf( + (version_info[0], version_info[1]) in [(4, 0), (4, 1)], + reason='Custom kwargs are available only for Tornado 4.2+', + ) + def test_on_executor_custom_kwarg(self): + # it should trace a handler that uses @run_on_executor + # with the `executor` kwarg + response = self.fetch('/executor_custom_handler/') + assert 200 == response.code + + traces = self.tracer.writer.pop_traces() + assert 2 == len(traces) + assert 1 == len(traces[0]) + assert 1 == len(traces[1]) + + # this trace yields the execution of the thread + request_span = traces[1][0] + assert 'tornado-web' == request_span.service + assert 'tornado.request' == request_span.name + assert 'web' == request_span.span_type + assert 'tests.contrib.tornado.web.app.ExecutorCustomHandler' == request_span.resource + assert 'GET' == request_span.get_tag('http.method') + assert_span_http_status_code(request_span, 200) + assert self.get_url('/executor_custom_handler/') == request_span.get_tag(http.URL) + assert 0 == request_span.error + assert request_span.duration >= 0.05 + + # this trace is executed in a different thread + executor_span = traces[0][0] + assert 'tornado-web' == executor_span.service + assert 'tornado.executor.with' == executor_span.name + assert executor_span.parent_id == request_span.span_id + assert 0 == executor_span.error + assert executor_span.duration >= 0.05 + + @unittest.skipIf( + (version_info[0], version_info[1]) in [(4, 0), (4, 1)], + reason='Custom kwargs are available only for Tornado 4.2+', + ) + def test_on_executor_custom_args_kwarg(self): + # it should raise an exception if the decorator is used improperly + response = self.fetch('/executor_custom_args_handler/') + assert 500 == response.code + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + + # this trace yields the execution of the thread + request_span = traces[0][0] + assert 'tornado-web' == request_span.service + assert 'tornado.request' == request_span.name + assert 'web' == request_span.span_type + assert 'tests.contrib.tornado.web.app.ExecutorCustomArgsHandler' == request_span.resource + assert 'GET' == request_span.get_tag('http.method') + assert_span_http_status_code(request_span, 500) + assert self.get_url('/executor_custom_args_handler/') == request_span.get_tag(http.URL) + assert 1 == request_span.error + assert 'cannot combine positional and keyword args' == request_span.get_tag('error.msg') + assert 'ValueError' in request_span.get_tag('error.stack') + + @unittest.skipUnless(futures_available, 'Futures must be available to test direct submit') + def test_futures_double_instrumentation(self): + # it should not double wrap `ThreadpPoolExecutor.submit` method if + # `futures` is already instrumented + from ddtrace import patch + patch(futures=True) + from concurrent.futures import ThreadPoolExecutor + from ddtrace.vendor.wrapt import BoundFunctionWrapper + + fn_wrapper = getattr(ThreadPoolExecutor.submit, '__wrapped__', None) + assert not isinstance(fn_wrapper, BoundFunctionWrapper) diff --git a/tests/contrib/tornado/test_safety.py b/tests/contrib/tornado/test_safety.py new file mode 100644 index 0000000000..7ebcfbab1d --- /dev/null +++ b/tests/contrib/tornado/test_safety.py @@ -0,0 +1,158 @@ +import threading + +from tornado import httpclient +from tornado.testing import gen_test + +from ddtrace.contrib.tornado import patch, unpatch +from ddtrace.ext import http + +from . import web +from .web.app import CustomDefaultHandler +from .utils import TornadoTestCase + + +class TestAsyncConcurrency(TornadoTestCase): + """ + Ensure that application instrumentation doesn't break asynchronous concurrency. + """ + @gen_test + def test_concurrent_requests(self): + REQUESTS_NUMBER = 25 + responses = [] + + # the application must handle concurrent calls + def make_requests(): + # use a blocking HTTP client (we're in another thread) + http_client = httpclient.HTTPClient() + url = self.get_url('/nested/') + response = http_client.fetch(url) + responses.append(response) + assert 200 == response.code + assert 'OK' == response.body.decode('utf-8') + # freeing file descriptors + http_client.close() + + # blocking call executed in different threads + threads = [threading.Thread(target=make_requests) for _ in range(REQUESTS_NUMBER)] + for t in threads: + t.start() + + while len(responses) < REQUESTS_NUMBER: + yield web.compat.sleep(0.001) + + for t in threads: + t.join() + + # the trace is created + traces = self.tracer.writer.pop_traces() + assert REQUESTS_NUMBER == len(traces) + assert 2 == len(traces[0]) + + +class TestAppSafety(TornadoTestCase): + """ + Ensure that the application patch has the proper safety guards. + """ + + def test_trace_unpatch(self): + # the application must not be traced if unpatch() is called + patch() + unpatch() + + response = self.fetch('/success/') + assert 200 == response.code + + traces = self.tracer.writer.pop_traces() + assert 0 == len(traces) + + def test_trace_unpatch_not_traced(self): + # the untrace must be safe if the app is not traced + unpatch() + unpatch() + + response = self.fetch('/success/') + assert 200 == response.code + + traces = self.tracer.writer.pop_traces() + assert 0 == len(traces) + + def test_trace_app_twice(self): + # the application must not be traced multiple times + patch() + patch() + + response = self.fetch('/success/') + assert 200 == response.code + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + + def test_arbitrary_resource_querystring(self): + # users inputs should not determine `span.resource` field + response = self.fetch('/success/?magic_number=42') + assert 200 == response.code + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + + request_span = traces[0][0] + assert 'tests.contrib.tornado.web.app.SuccessHandler' == request_span.resource + assert self.get_url('/success/') == request_span.get_tag(http.URL) + + def test_arbitrary_resource_404(self): + # users inputs should not determine `span.resource` field + response = self.fetch('/does_not_exist/') + assert 404 == response.code + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + + request_span = traces[0][0] + assert 'tornado.web.ErrorHandler' == request_span.resource + assert self.get_url('/does_not_exist/') == request_span.get_tag(http.URL) + + @gen_test + def test_futures_without_context(self): + # ensures that if futures propagation is available, an empty + # context doesn't crash the system + from .web.compat import ThreadPoolExecutor + + def job(): + with self.tracer.trace('job'): + return 42 + + executor = ThreadPoolExecutor(max_workers=3) + yield executor.submit(job) + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + + # this trace yields the execution of the thread + span = traces[0][0] + assert 'job' == span.name + + +class TestCustomAppSafety(TornadoTestCase): + """ + Ensure that the application patch has the proper safety guards, + even for custom default handlers. + """ + def get_settings(self): + return { + 'default_handler_class': CustomDefaultHandler, + 'default_handler_args': dict(status_code=400), + } + + def test_trace_unpatch(self): + # the application must not be traced if unpatch() is called + unpatch() + + response = self.fetch('/custom_handler/') + assert 400 == response.code + + traces = self.tracer.writer.pop_traces() + assert 0 == len(traces) diff --git a/tests/contrib/tornado/test_stack_context.py b/tests/contrib/tornado/test_stack_context.py new file mode 100644 index 0000000000..a3727dfe82 --- /dev/null +++ b/tests/contrib/tornado/test_stack_context.py @@ -0,0 +1,54 @@ +import pytest +import tornado + +from ddtrace.context import Context +from ddtrace.contrib.tornado import TracerStackContext + +from .utils import TornadoTestCase +from .web.compat import sleep + + +class TestStackContext(TornadoTestCase): + @pytest.mark.skipif(tornado.version_info >= (5, 0), + reason='tornado.stack_context deprecated in Tornado 5.0 and removed in Tornado 6.0') + def test_without_stack_context(self): + # without a TracerStackContext, propagation is not available + ctx = self.tracer.context_provider.active() + assert ctx is None + + def test_stack_context(self): + # a TracerStackContext should automatically propagate a tracing context + with TracerStackContext(): + ctx = self.tracer.context_provider.active() + + assert ctx is not None + + def test_propagation_with_new_context(self): + # inside a TracerStackContext it should be possible to set + # a new Context for distributed tracing + with TracerStackContext(): + ctx = Context(trace_id=100, span_id=101) + self.tracer.context_provider.activate(ctx) + with self.tracer.trace('tornado'): + sleep(0.01) + + traces = self.tracer.writer.pop_traces() + assert len(traces) == 1 + assert len(traces[0]) == 1 + assert traces[0][0].trace_id == 100 + assert traces[0][0].parent_id == 101 + + @pytest.mark.skipif(tornado.version_info >= (5, 0), + reason='tornado.stack_context deprecated in Tornado 5.0 and removed in Tornado 6.0') + def test_propagation_without_stack_context(self): + # a Context is discarded if not set inside a TracerStackContext + ctx = Context(trace_id=100, span_id=101) + self.tracer.context_provider.activate(ctx) + with self.tracer.trace('tornado'): + sleep(0.01) + + traces = self.tracer.writer.pop_traces() + assert len(traces) == 1 + assert len(traces[0]) == 1 + assert traces[0][0].trace_id != 100 + assert traces[0][0].parent_id != 101 diff --git a/tests/contrib/tornado/test_tornado_template.py b/tests/contrib/tornado/test_tornado_template.py new file mode 100644 index 0000000000..a496c9145f --- /dev/null +++ b/tests/contrib/tornado/test_tornado_template.py @@ -0,0 +1,169 @@ +from tornado import template + +import pytest + +from .utils import TornadoTestCase +from ...utils import assert_span_http_status_code + +from ddtrace.ext import http + + +class TestTornadoTemplate(TornadoTestCase): + """ + Ensure that Tornado templates are properly traced inside and + outside web handlers. + """ + def test_template_handler(self): + # it should trace the template rendering + response = self.fetch('/template/') + assert 200 == response.code + assert 'This is a rendered page called "home"\n' == response.body.decode('utf-8') + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 2 == len(traces[0]) + + request_span = traces[0][0] + assert 'tornado-web' == request_span.service + assert 'tornado.request' == request_span.name + assert 'web' == request_span.span_type + assert 'tests.contrib.tornado.web.app.TemplateHandler' == request_span.resource + assert 'GET' == request_span.get_tag('http.method') + assert_span_http_status_code(request_span, 200) + assert self.get_url('/template/') == request_span.get_tag(http.URL) + assert 0 == request_span.error + + template_span = traces[0][1] + assert 'tornado-web' == template_span.service + assert 'tornado.template' == template_span.name + assert 'template' == template_span.span_type + assert 'templates/page.html' == template_span.resource + assert 'templates/page.html' == template_span.get_tag('tornado.template_name') + assert template_span.parent_id == request_span.span_id + assert 0 == template_span.error + + def test_template_renderer(self): + # it should trace the Template generation even outside web handlers + t = template.Template('Hello {{ name }}!') + value = t.generate(name='world') + assert value == b'Hello world!' + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + + template_span = traces[0][0] + assert 'tornado-web' == template_span.service + assert 'tornado.template' == template_span.name + assert 'template' == template_span.span_type + assert 'render_string' == template_span.resource + assert 'render_string' == template_span.get_tag('tornado.template_name') + assert 0 == template_span.error + + def test_template_partials(self): + # it should trace the template rendering when partials are used + response = self.fetch('/template_partial/') + assert 200 == response.code + assert 'This is a list:\n\n* python\n\n\n* go\n\n\n* ruby\n\n\n' == response.body.decode('utf-8') + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 5 == len(traces[0]) + + request_span = traces[0][0] + assert 'tornado-web' == request_span.service + assert 'tornado.request' == request_span.name + assert 'web' == request_span.span_type + assert 'tests.contrib.tornado.web.app.TemplatePartialHandler' == request_span.resource + assert 'GET' == request_span.get_tag('http.method') + assert_span_http_status_code(request_span, 200) + assert self.get_url('/template_partial/') == request_span.get_tag(http.URL) + assert 0 == request_span.error + + template_root = traces[0][1] + assert 'tornado-web' == template_root.service + assert 'tornado.template' == template_root.name + assert 'template' == template_root.span_type + assert 'templates/list.html' == template_root.resource + assert 'templates/list.html' == template_root.get_tag('tornado.template_name') + assert template_root.parent_id == request_span.span_id + assert 0 == template_root.error + + template_span = traces[0][2] + assert 'tornado-web' == template_span.service + assert 'tornado.template' == template_span.name + assert 'template' == template_span.span_type + assert 'templates/item.html' == template_span.resource + assert 'templates/item.html' == template_span.get_tag('tornado.template_name') + assert template_span.parent_id == template_root.span_id + assert 0 == template_span.error + + template_span = traces[0][3] + assert 'tornado-web' == template_span.service + assert 'tornado.template' == template_span.name + assert 'template' == template_span.span_type + assert 'templates/item.html' == template_span.resource + assert 'templates/item.html' == template_span.get_tag('tornado.template_name') + assert template_span.parent_id == template_root.span_id + assert 0 == template_span.error + + template_span = traces[0][4] + assert 'tornado-web' == template_span.service + assert 'tornado.template' == template_span.name + assert 'template' == template_span.span_type + assert 'templates/item.html' == template_span.resource + assert 'templates/item.html' == template_span.get_tag('tornado.template_name') + assert template_span.parent_id == template_root.span_id + assert 0 == template_span.error + + def test_template_exception_handler(self): + # it should trace template rendering exceptions + response = self.fetch('/template_exception/') + assert 500 == response.code + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 2 == len(traces[0]) + + request_span = traces[0][0] + assert 'tornado-web' == request_span.service + assert 'tornado.request' == request_span.name + assert 'web' == request_span.span_type + assert 'tests.contrib.tornado.web.app.TemplateExceptionHandler' == request_span.resource + assert 'GET' == request_span.get_tag('http.method') + assert_span_http_status_code(request_span, 500) + assert self.get_url('/template_exception/') == request_span.get_tag(http.URL) + assert 1 == request_span.error + assert 'ModuleThatDoesNotExist' in request_span.get_tag('error.msg') + assert 'AttributeError' in request_span.get_tag('error.stack') + + template_span = traces[0][1] + assert 'tornado-web' == template_span.service + assert 'tornado.template' == template_span.name + assert 'template' == template_span.span_type + assert 'templates/exception.html' == template_span.resource + assert 'templates/exception.html' == template_span.get_tag('tornado.template_name') + assert template_span.parent_id == request_span.span_id + assert 1 == template_span.error + assert 'ModuleThatDoesNotExist' in template_span.get_tag('error.msg') + assert 'AttributeError' in template_span.get_tag('error.stack') + + def test_template_renderer_exception(self): + # it should trace the Template exceptions generation even outside web handlers + t = template.Template('{% module ModuleThatDoesNotExist() %}') + with pytest.raises(NameError): + t.generate() + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + + template_span = traces[0][0] + assert 'tornado-web' == template_span.service + assert 'tornado.template' == template_span.name + assert 'template' == template_span.span_type + assert 'render_string' == template_span.resource + assert 'render_string' == template_span.get_tag('tornado.template_name') + assert 1 == template_span.error + assert 'is not defined' in template_span.get_tag('error.msg') + assert 'NameError' in template_span.get_tag('error.stack') diff --git a/tests/contrib/tornado/test_tornado_web.py b/tests/contrib/tornado/test_tornado_web.py new file mode 100644 index 0000000000..e710da7103 --- /dev/null +++ b/tests/contrib/tornado/test_tornado_web.py @@ -0,0 +1,491 @@ +from .web.app import CustomDefaultHandler +from .utils import TornadoTestCase + +from ddtrace import config +from ddtrace.constants import SAMPLING_PRIORITY_KEY, ORIGIN_KEY, ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.ext import http +import pytest +import tornado + +from tests.opentracer.utils import init_tracer +from ...utils import assert_span_http_status_code + + +class TestTornadoWeb(TornadoTestCase): + """ + Ensure that Tornado web handlers are properly traced. + """ + def test_success_handler(self, query_string=''): + # it should trace a handler that returns 200 + if query_string: + fqs = '?' + query_string + else: + fqs = '' + response = self.fetch('/success/' + fqs) + assert 200 == response.code + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + + request_span = traces[0][0] + assert 'tornado-web' == request_span.service + assert 'tornado.request' == request_span.name + assert 'web' == request_span.span_type + assert 'tests.contrib.tornado.web.app.SuccessHandler' == request_span.resource + assert 'GET' == request_span.get_tag('http.method') + assert_span_http_status_code(request_span, 200) + assert self.get_url('/success/') == request_span.get_tag(http.URL) + if config.tornado.trace_query_string: + assert query_string == request_span.get_tag(http.QUERY_STRING) + else: + assert http.QUERY_STRING not in request_span.meta + assert 0 == request_span.error + + def test_success_handler_query_string(self): + self.test_success_handler('foo=bar') + + def test_success_handler_query_string_trace(self): + with self.override_http_config('tornado', dict(trace_query_string=True)): + self.test_success_handler('foo=bar') + + def test_nested_handler(self): + # it should trace a handler that calls the tracer.trace() method + # using the automatic Context retrieval + response = self.fetch('/nested/') + assert 200 == response.code + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 2 == len(traces[0]) + # check request span + request_span = traces[0][0] + assert 'tornado-web' == request_span.service + assert 'tornado.request' == request_span.name + assert 'web' == request_span.span_type + assert 'tests.contrib.tornado.web.app.NestedHandler' == request_span.resource + assert 'GET' == request_span.get_tag('http.method') + assert_span_http_status_code(request_span, 200) + assert self.get_url('/nested/') == request_span.get_tag(http.URL) + assert 0 == request_span.error + # check nested span + nested_span = traces[0][1] + assert 'tornado-web' == nested_span.service + assert 'tornado.sleep' == nested_span.name + assert 0 == nested_span.error + # check durations because of the yield sleep + assert request_span.duration >= 0.05 + assert nested_span.duration >= 0.05 + + def test_exception_handler(self): + # it should trace a handler that raises an exception + response = self.fetch('/exception/') + assert 500 == response.code + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + + request_span = traces[0][0] + assert 'tornado-web' == request_span.service + assert 'tornado.request' == request_span.name + assert 'web' == request_span.span_type + assert 'tests.contrib.tornado.web.app.ExceptionHandler' == request_span.resource + assert 'GET' == request_span.get_tag('http.method') + assert_span_http_status_code(request_span, 500) + assert self.get_url('/exception/') == request_span.get_tag(http.URL) + assert 1 == request_span.error + assert 'Ouch!' == request_span.get_tag('error.msg') + assert 'Exception: Ouch!' in request_span.get_tag('error.stack') + + def test_http_exception_handler(self): + # it should trace a handler that raises a Tornado HTTPError + response = self.fetch('/http_exception/') + assert 501 == response.code + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + + request_span = traces[0][0] + assert 'tornado-web' == request_span.service + assert 'tornado.request' == request_span.name + assert 'web' == request_span.span_type + assert 'tests.contrib.tornado.web.app.HTTPExceptionHandler' == request_span.resource + assert 'GET' == request_span.get_tag('http.method') + assert_span_http_status_code(request_span, 501) + assert self.get_url('/http_exception/') == request_span.get_tag(http.URL) + assert 1 == request_span.error + assert 'HTTP 501: Not Implemented (unavailable)' == request_span.get_tag('error.msg') + assert 'HTTP 501: Not Implemented (unavailable)' in request_span.get_tag('error.stack') + + def test_http_exception_500_handler(self): + # it should trace a handler that raises a Tornado HTTPError + response = self.fetch('/http_exception_500/') + assert 500 == response.code + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + + request_span = traces[0][0] + assert 'tornado-web' == request_span.service + assert 'tornado.request' == request_span.name + assert 'web' == request_span.span_type + assert 'tests.contrib.tornado.web.app.HTTPException500Handler' == request_span.resource + assert 'GET' == request_span.get_tag('http.method') + assert_span_http_status_code(request_span, 500) + assert self.get_url('/http_exception_500/') == request_span.get_tag(http.URL) + assert 1 == request_span.error + assert 'HTTP 500: Server Error (server error)' == request_span.get_tag('error.msg') + assert 'HTTP 500: Server Error (server error)' in request_span.get_tag('error.stack') + + def test_sync_success_handler(self): + # it should trace a synchronous handler that returns 200 + response = self.fetch('/sync_success/') + assert 200 == response.code + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + + request_span = traces[0][0] + assert 'tornado-web' == request_span.service + assert 'tornado.request' == request_span.name + assert 'web' == request_span.span_type + assert 'tests.contrib.tornado.web.app.SyncSuccessHandler' == request_span.resource + assert 'GET' == request_span.get_tag('http.method') + assert_span_http_status_code(request_span, 200) + assert self.get_url('/sync_success/') == request_span.get_tag(http.URL) + assert 0 == request_span.error + + def test_sync_exception_handler(self): + # it should trace a handler that raises an exception + response = self.fetch('/sync_exception/') + assert 500 == response.code + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + + request_span = traces[0][0] + assert 'tornado-web' == request_span.service + assert 'tornado.request' == request_span.name + assert 'web' == request_span.span_type + assert 'tests.contrib.tornado.web.app.SyncExceptionHandler' == request_span.resource + assert 'GET' == request_span.get_tag('http.method') + assert_span_http_status_code(request_span, 500) + assert self.get_url('/sync_exception/') == request_span.get_tag(http.URL) + assert 1 == request_span.error + assert 'Ouch!' == request_span.get_tag('error.msg') + assert 'Exception: Ouch!' in request_span.get_tag('error.stack') + + def test_404_handler(self): + # it should trace 404 + response = self.fetch('/does_not_exist/') + assert 404 == response.code + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + + request_span = traces[0][0] + assert 'tornado-web' == request_span.service + assert 'tornado.request' == request_span.name + assert 'web' == request_span.span_type + assert 'tornado.web.ErrorHandler' == request_span.resource + assert 'GET' == request_span.get_tag('http.method') + assert_span_http_status_code(request_span, 404) + assert self.get_url('/does_not_exist/') == request_span.get_tag(http.URL) + assert 0 == request_span.error + + def test_redirect_handler(self): + # it should trace the built-in RedirectHandler + response = self.fetch('/redirect/') + assert 200 == response.code + + # we trace two different calls: the RedirectHandler and the SuccessHandler + traces = self.tracer.writer.pop_traces() + assert 2 == len(traces) + assert 1 == len(traces[0]) + assert 1 == len(traces[1]) + + redirect_span = traces[0][0] + assert 'tornado-web' == redirect_span.service + assert 'tornado.request' == redirect_span.name + assert 'web' == redirect_span.span_type + assert 'tornado.web.RedirectHandler' == redirect_span.resource + assert 'GET' == redirect_span.get_tag('http.method') + assert_span_http_status_code(redirect_span, 301) + assert self.get_url('/redirect/') == redirect_span.get_tag(http.URL) + assert 0 == redirect_span.error + + success_span = traces[1][0] + assert 'tornado-web' == success_span.service + assert 'tornado.request' == success_span.name + assert 'web' == success_span.span_type + assert 'tests.contrib.tornado.web.app.SuccessHandler' == success_span.resource + assert 'GET' == success_span.get_tag('http.method') + assert_span_http_status_code(success_span, 200) + assert self.get_url('/success/') == success_span.get_tag(http.URL) + assert 0 == success_span.error + + def test_static_handler(self): + # it should trace the access to static files + response = self.fetch('/statics/empty.txt') + assert 200 == response.code + assert 'Static file\n' == response.body.decode('utf-8') + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + + request_span = traces[0][0] + assert 'tornado-web' == request_span.service + assert 'tornado.request' == request_span.name + assert 'web' == request_span.span_type + assert 'tornado.web.StaticFileHandler' == request_span.resource + assert 'GET' == request_span.get_tag('http.method') + assert_span_http_status_code(request_span, 200) + assert self.get_url('/statics/empty.txt') == request_span.get_tag(http.URL) + assert 0 == request_span.error + + def test_propagation(self): + # it should trace a handler that returns 200 with a propagated context + headers = { + 'x-datadog-trace-id': '1234', + 'x-datadog-parent-id': '4567', + 'x-datadog-sampling-priority': '2' + } + response = self.fetch('/success/', headers=headers) + assert 200 == response.code + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + + request_span = traces[0][0] + + # simple sanity check on the span + assert 'tornado.request' == request_span.name + assert_span_http_status_code(request_span, 200) + assert self.get_url('/success/') == request_span.get_tag(http.URL) + assert 0 == request_span.error + + # check propagation + assert 1234 == request_span.trace_id + assert 4567 == request_span.parent_id + assert 2 == request_span.get_metric(SAMPLING_PRIORITY_KEY) + + # Opentracing support depends on new AsyncioScopeManager + # See: https://github.com/opentracing/opentracing-python/pull/118 + @pytest.mark.skipif(tornado.version_info >= (5, 0), + reason='Opentracing ScopeManager not available for Tornado >= 5') + def test_success_handler_ot(self): + """OpenTracing version of test_success_handler.""" + from opentracing.scope_managers.tornado import TornadoScopeManager + ot_tracer = init_tracer('tornado_svc', self.tracer, scope_manager=TornadoScopeManager()) + + with ot_tracer.start_active_span('tornado_op'): + response = self.fetch('/success/') + assert 200 == response.code + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 2 == len(traces[0]) + # dd_span will start and stop before the ot_span finishes + ot_span, dd_span = traces[0] + + # confirm the parenting + assert ot_span.parent_id is None + assert dd_span.parent_id == ot_span.span_id + + assert ot_span.name == 'tornado_op' + assert ot_span.service == 'tornado_svc' + + assert 'tornado-web' == dd_span.service + assert 'tornado.request' == dd_span.name + assert 'web' == dd_span.span_type + assert 'tests.contrib.tornado.web.app.SuccessHandler' == dd_span.resource + assert 'GET' == dd_span.get_tag('http.method') + assert_span_http_status_code(dd_span, 200) + assert self.get_url('/success/') == dd_span.get_tag(http.URL) + assert 0 == dd_span.error + + +class TestTornadoWebAnalyticsDefault(TornadoTestCase): + """ + Ensure that Tornado web handlers generate APM events with default settings + """ + def test_analytics_global_on_integration_default(self): + """ + When making a request + When an integration trace search is not event sample rate is not set and globally trace search is enabled + We expect the root span to have the appropriate tag + """ + with self.override_global_config(dict(analytics_enabled=True)): + # it should trace a handler that returns 200 + response = self.fetch('/success/') + self.assertEqual(200, response.code) + + self.assert_structure( + dict(name='tornado.request', metrics={ANALYTICS_SAMPLE_RATE_KEY: 1.0}), + ) + + def test_analytics_global_off_integration_default(self): + """ + When making a request + When an integration trace search is not set and sample rate is set and globally trace search is disabled + We expect the root span to not include tag + """ + with self.override_global_config(dict(analytics_enabled=False)): + # it should trace a handler that returns 200 + response = self.fetch('/success/') + self.assertEqual(200, response.code) + + root = self.get_root_span() + self.assertIsNone(root.get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + +class TestTornadoWebAnalyticsOn(TornadoTestCase): + """ + Ensure that Tornado web handlers generate APM events with default settings + """ + def get_settings(self): + # distributed_tracing needs to be disabled manually + return { + 'datadog_trace': { + 'analytics_enabled': True, + 'analytics_sample_rate': 0.5, + }, + } + + def test_analytics_global_on_integration_on(self): + """ + When making a request + When an integration trace search is enabled and sample rate is set and globally trace search is enabled + We expect the root span to have the appropriate tag + """ + with self.override_global_config(dict(analytics_enabled=True)): + # it should trace a handler that returns 200 + response = self.fetch('/success/') + self.assertEqual(200, response.code) + + self.assert_structure( + dict(name='tornado.request', metrics={ANALYTICS_SAMPLE_RATE_KEY: 0.5}), + ) + + def test_analytics_global_off_integration_on(self): + """ + When making a request + When an integration trace search is enabled and sample rate is set and globally trace search is disabled + We expect the root span to have the appropriate tag + """ + with self.override_global_config(dict(analytics_enabled=False)): + # it should trace a handler that returns 200 + response = self.fetch('/success/') + self.assertEqual(200, response.code) + + self.assert_structure( + dict(name='tornado.request', metrics={ANALYTICS_SAMPLE_RATE_KEY: 0.5}), + ) + + +class TestTornadoWebAnalyticsNoRate(TornadoTestCase): + """ + Ensure that Tornado web handlers generate APM events with default settings + """ + def get_settings(self): + # distributed_tracing needs to be disabled manually + return { + 'datadog_trace': { + 'analytics_enabled': True, + }, + } + + def test_analytics_global_on_integration_on(self): + """ + When making a request + When an integration trace search is enabled and sample rate is set and globally trace search is enabled + We expect the root span to have the appropriate tag + """ + with self.override_global_config(dict(analytics_enabled=True)): + # it should trace a handler that returns 200 + response = self.fetch('/success/') + self.assertEqual(200, response.code) + + self.assert_structure( + dict(name='tornado.request', metrics={ANALYTICS_SAMPLE_RATE_KEY: 1.0}), + ) + + +class TestNoPropagationTornadoWeb(TornadoTestCase): + """ + Ensure that Tornado web handlers are properly traced and are ignoring propagated HTTP headers when disabled. + """ + def get_settings(self): + # distributed_tracing needs to be disabled manually + return { + 'datadog_trace': { + 'distributed_tracing': False, + }, + } + + def test_no_propagation(self): + # it should not propagate the HTTP context + headers = { + 'x-datadog-trace-id': '1234', + 'x-datadog-parent-id': '4567', + 'x-datadog-sampling-priority': '2', + 'x-datadog-origin': 'synthetics', + } + response = self.fetch('/success/', headers=headers) + assert 200 == response.code + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + + request_span = traces[0][0] + + # simple sanity check on the span + assert 'tornado.request' == request_span.name + assert_span_http_status_code(request_span, 200) + assert self.get_url('/success/') == request_span.get_tag(http.URL) + assert 0 == request_span.error + + # check non-propagation + assert request_span.trace_id != 1234 + assert request_span.parent_id != 4567 + assert request_span.get_metric(SAMPLING_PRIORITY_KEY) != 2 + assert request_span.get_tag(ORIGIN_KEY) != 'synthetics' + + +class TestCustomTornadoWeb(TornadoTestCase): + """ + Ensure that Tornado web handlers are properly traced when using + a custom default handler. + """ + def get_settings(self): + return { + 'default_handler_class': CustomDefaultHandler, + 'default_handler_args': dict(status_code=400), + } + + def test_custom_default_handler(self): + # it should trace any call that uses a custom default handler + response = self.fetch('/custom_handler/') + assert 400 == response.code + + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 1 == len(traces[0]) + + request_span = traces[0][0] + assert 'tornado-web' == request_span.service + assert 'tornado.request' == request_span.name + assert 'web' == request_span.span_type + assert 'tests.contrib.tornado.web.app.CustomDefaultHandler' == request_span.resource + assert 'GET' == request_span.get_tag('http.method') + assert_span_http_status_code(request_span, 400) + assert self.get_url('/custom_handler/') == request_span.get_tag(http.URL) + assert 0 == request_span.error diff --git a/tests/contrib/tornado/test_wrap_decorator.py b/tests/contrib/tornado/test_wrap_decorator.py new file mode 100644 index 0000000000..1c038dfe87 --- /dev/null +++ b/tests/contrib/tornado/test_wrap_decorator.py @@ -0,0 +1,178 @@ +from ddtrace.ext import http + +from .utils import TornadoTestCase +from ...utils import assert_span_http_status_code + + +class TestTornadoWebWrapper(TornadoTestCase): + """ + Ensure that Tracer.wrap() works with Tornado web handlers. + """ + def test_nested_wrap_handler(self): + # it should trace a handler that calls a coroutine + response = self.fetch('/nested_wrap/') + assert 200 == response.code + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 2 == len(traces[0]) + # check request span + request_span = traces[0][0] + assert 'tornado-web' == request_span.service + assert 'tornado.request' == request_span.name + assert 'web' == request_span.span_type + assert 'tests.contrib.tornado.web.app.NestedWrapHandler' == request_span.resource + assert 'GET' == request_span.get_tag('http.method') + assert_span_http_status_code(request_span, 200) + assert self.get_url('/nested_wrap/') == request_span.get_tag(http.URL) + assert 0 == request_span.error + # check nested span + nested_span = traces[0][1] + assert 'tornado-web' == nested_span.service + assert 'tornado.coro' == nested_span.name + assert 0 == nested_span.error + # check durations because of the yield sleep + assert request_span.duration >= 0.05 + assert nested_span.duration >= 0.05 + + def test_nested_exception_wrap_handler(self): + # it should trace a handler that calls a coroutine that raises an exception + response = self.fetch('/nested_exception_wrap/') + assert 500 == response.code + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 2 == len(traces[0]) + # check request span + request_span = traces[0][0] + assert 'tornado-web' == request_span.service + assert 'tornado.request' == request_span.name + assert 'web' == request_span.span_type + assert 'tests.contrib.tornado.web.app.NestedExceptionWrapHandler' == request_span.resource + assert 'GET' == request_span.get_tag('http.method') + assert_span_http_status_code(request_span, 500) + assert self.get_url('/nested_exception_wrap/') == request_span.get_tag(http.URL) + assert 1 == request_span.error + assert 'Ouch!' == request_span.get_tag('error.msg') + assert 'Exception: Ouch!' in request_span.get_tag('error.stack') + # check nested span + nested_span = traces[0][1] + assert 'tornado-web' == nested_span.service + assert 'tornado.coro' == nested_span.name + assert 1 == nested_span.error + assert 'Ouch!' == nested_span.get_tag('error.msg') + assert 'Exception: Ouch!' in nested_span.get_tag('error.stack') + # check durations because of the yield sleep + assert request_span.duration >= 0.05 + assert nested_span.duration >= 0.05 + + def test_sync_nested_wrap_handler(self): + # it should trace a handler that calls a coroutine + response = self.fetch('/sync_nested_wrap/') + assert 200 == response.code + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 2 == len(traces[0]) + # check request span + request_span = traces[0][0] + assert 'tornado-web' == request_span.service + assert 'tornado.request' == request_span.name + assert 'web' == request_span.span_type + assert 'tests.contrib.tornado.web.app.SyncNestedWrapHandler' == request_span.resource + assert 'GET' == request_span.get_tag('http.method') + assert_span_http_status_code(request_span, 200) + assert self.get_url('/sync_nested_wrap/') == request_span.get_tag(http.URL) + assert 0 == request_span.error + # check nested span + nested_span = traces[0][1] + assert 'tornado-web' == nested_span.service + assert 'tornado.func' == nested_span.name + assert 0 == nested_span.error + # check durations because of the yield sleep + assert request_span.duration >= 0.05 + assert nested_span.duration >= 0.05 + + def test_sync_nested_exception_wrap_handler(self): + # it should trace a handler that calls a coroutine that raises an exception + response = self.fetch('/sync_nested_exception_wrap/') + assert 500 == response.code + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 2 == len(traces[0]) + # check request span + request_span = traces[0][0] + assert 'tornado-web' == request_span.service + assert 'tornado.request' == request_span.name + assert 'web' == request_span.span_type + assert 'tests.contrib.tornado.web.app.SyncNestedExceptionWrapHandler' == request_span.resource + assert 'GET' == request_span.get_tag('http.method') + assert_span_http_status_code(request_span, 500) + assert self.get_url('/sync_nested_exception_wrap/') == request_span.get_tag(http.URL) + assert 1 == request_span.error + assert 'Ouch!' == request_span.get_tag('error.msg') + assert 'Exception: Ouch!' in request_span.get_tag('error.stack') + # check nested span + nested_span = traces[0][1] + assert 'tornado-web' == nested_span.service + assert 'tornado.func' == nested_span.name + assert 1 == nested_span.error + assert 'Ouch!' == nested_span.get_tag('error.msg') + assert 'Exception: Ouch!' in nested_span.get_tag('error.stack') + # check durations because of the yield sleep + assert request_span.duration >= 0.05 + assert nested_span.duration >= 0.05 + + def test_nested_wrap_executor_handler(self): + # it should trace a handler that calls a blocking function in a different executor + response = self.fetch('/executor_wrap_handler/') + assert 200 == response.code + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 2 == len(traces[0]) + # check request span + request_span = traces[0][0] + assert 'tornado-web' == request_span.service + assert 'tornado.request' == request_span.name + assert 'web' == request_span.span_type + assert 'tests.contrib.tornado.web.app.ExecutorWrapHandler' == request_span.resource + assert 'GET' == request_span.get_tag('http.method') + assert_span_http_status_code(request_span, 200) + assert self.get_url('/executor_wrap_handler/') == request_span.get_tag(http.URL) + assert 0 == request_span.error + # check nested span in the executor + nested_span = traces[0][1] + assert 'tornado-web' == nested_span.service + assert 'tornado.executor.wrap' == nested_span.name + assert 0 == nested_span.error + # check durations because of the yield sleep + assert request_span.duration >= 0.05 + assert nested_span.duration >= 0.05 + + def test_nested_exception_wrap_executor_handler(self): + # it should trace a handler that calls a blocking function in a different + # executor that raises an exception + response = self.fetch('/executor_wrap_exception/') + assert 500 == response.code + traces = self.tracer.writer.pop_traces() + assert 1 == len(traces) + assert 2 == len(traces[0]) + # check request span + request_span = traces[0][0] + assert 'tornado-web' == request_span.service + assert 'tornado.request' == request_span.name + assert 'web' == request_span.span_type + assert 'tests.contrib.tornado.web.app.ExecutorExceptionWrapHandler' == request_span.resource + assert 'GET' == request_span.get_tag('http.method') + assert_span_http_status_code(request_span, 500) + assert self.get_url('/executor_wrap_exception/') == request_span.get_tag(http.URL) + assert 1 == request_span.error + assert 'Ouch!' == request_span.get_tag('error.msg') + assert 'Exception: Ouch!' in request_span.get_tag('error.stack') + # check nested span + nested_span = traces[0][1] + assert 'tornado-web' == nested_span.service + assert 'tornado.executor.wrap' == nested_span.name + assert 1 == nested_span.error + assert 'Ouch!' == nested_span.get_tag('error.msg') + assert 'Exception: Ouch!' in nested_span.get_tag('error.stack') + # check durations because of the yield sleep + assert request_span.duration >= 0.05 + assert nested_span.duration >= 0.05 diff --git a/tests/contrib/tornado/utils.py b/tests/contrib/tornado/utils.py new file mode 100644 index 0000000000..45803fface --- /dev/null +++ b/tests/contrib/tornado/utils.py @@ -0,0 +1,38 @@ +from tornado.testing import AsyncHTTPTestCase + +from ddtrace.contrib.tornado import patch, unpatch +from ddtrace.compat import reload_module + +from .web import app, compat +from ...base import BaseTracerTestCase + + +class TornadoTestCase(BaseTracerTestCase, AsyncHTTPTestCase): + """ + Generic TornadoTestCase where the framework is globally patched + and unpatched before/after each test. A dummy tracer is provided + in the `self.tracer` attribute. + """ + def get_app(self): + # patch Tornado and reload module app + patch() + reload_module(compat) + reload_module(app) + + settings = self.get_settings() + trace_settings = settings.get('datadog_trace', {}) + settings['datadog_trace'] = trace_settings + trace_settings['tracer'] = self.tracer + self.app = app.make_app(settings=settings) + return self.app + + def get_settings(self): + # override settings in your TestCase + return {} + + def tearDown(self): + super(TornadoTestCase, self).tearDown() + # unpatch Tornado + unpatch() + reload_module(compat) + reload_module(app) diff --git a/tests/contrib/tornado/web/__init__.py b/tests/contrib/tornado/web/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/tornado/web/app.py b/tests/contrib/tornado/web/app.py new file mode 100644 index 0000000000..bb7114d959 --- /dev/null +++ b/tests/contrib/tornado/web/app.py @@ -0,0 +1,330 @@ +import os +import time + +import tornado.web +import tornado.concurrent + +from . import uimodules +from .compat import sleep, ThreadPoolExecutor + + +BASE_DIR = os.path.dirname(os.path.realpath(__file__)) +STATIC_DIR = os.path.join(BASE_DIR, 'statics') + + +class SuccessHandler(tornado.web.RequestHandler): + @tornado.gen.coroutine + def get(self): + self.write('OK') + + +class NestedHandler(tornado.web.RequestHandler): + @tornado.gen.coroutine + def get(self): + tracer = self.settings['datadog_trace']['tracer'] + with tracer.trace('tornado.sleep'): + yield sleep(0.05) + self.write('OK') + + +class NestedWrapHandler(tornado.web.RequestHandler): + @tornado.gen.coroutine + def get(self): + tracer = self.settings['datadog_trace']['tracer'] + + # define a wrapped coroutine: having an inner coroutine + # is only for easy testing + @tracer.wrap('tornado.coro') + @tornado.gen.coroutine + def coro(): + yield sleep(0.05) + + yield coro() + self.write('OK') + + +class NestedExceptionWrapHandler(tornado.web.RequestHandler): + @tornado.gen.coroutine + def get(self): + tracer = self.settings['datadog_trace']['tracer'] + + # define a wrapped coroutine: having an inner coroutine + # is only for easy testing + @tracer.wrap('tornado.coro') + @tornado.gen.coroutine + def coro(): + yield sleep(0.05) + raise Exception('Ouch!') + + yield coro() + self.write('OK') + + +class ExceptionHandler(tornado.web.RequestHandler): + @tornado.gen.coroutine + def get(self): + raise Exception('Ouch!') + + +class HTTPExceptionHandler(tornado.web.RequestHandler): + @tornado.gen.coroutine + def get(self): + raise tornado.web.HTTPError(status_code=501, log_message='unavailable', reason='Not Implemented') + + +class HTTPException500Handler(tornado.web.RequestHandler): + @tornado.gen.coroutine + def get(self): + raise tornado.web.HTTPError(status_code=500, log_message='server error', reason='Server Error') + + +class TemplateHandler(tornado.web.RequestHandler): + @tornado.gen.coroutine + def get(self): + self.render('templates/page.html', name='home') + + +class TemplatePartialHandler(tornado.web.RequestHandler): + @tornado.gen.coroutine + def get(self): + self.render('templates/list.html', items=['python', 'go', 'ruby']) + + +class TemplateExceptionHandler(tornado.web.RequestHandler): + @tornado.gen.coroutine + def get(self): + self.render('templates/exception.html') + + +class SyncSuccessHandler(tornado.web.RequestHandler): + def get(self): + self.write('OK') + + +class SyncExceptionHandler(tornado.web.RequestHandler): + def get(self): + raise Exception('Ouch!') + + +class SyncNestedWrapHandler(tornado.web.RequestHandler): + def get(self): + tracer = self.settings['datadog_trace']['tracer'] + + # define a wrapped coroutine: having an inner coroutine + # is only for easy testing + @tracer.wrap('tornado.func') + def func(): + time.sleep(0.05) + + func() + self.write('OK') + + +class SyncNestedExceptionWrapHandler(tornado.web.RequestHandler): + def get(self): + tracer = self.settings['datadog_trace']['tracer'] + + # define a wrapped coroutine: having an inner coroutine + # is only for easy testing + @tracer.wrap('tornado.func') + def func(): + time.sleep(0.05) + raise Exception('Ouch!') + + func() + self.write('OK') + + +class CustomDefaultHandler(tornado.web.ErrorHandler): + """ + Default handler that is used in case of 404 error; in our tests + it's used only if defined in the get_app() function. + """ + pass + + +class ExecutorHandler(tornado.web.RequestHandler): + # used automatically by the @run_on_executor decorator + executor = ThreadPoolExecutor(max_workers=3) + + @tornado.concurrent.run_on_executor + def outer_executor(self): + tracer = self.settings['datadog_trace']['tracer'] + with tracer.trace('tornado.executor.with'): + time.sleep(0.05) + + @tornado.gen.coroutine + def get(self): + yield self.outer_executor() + self.write('OK') + + +class ExecutorSubmitHandler(tornado.web.RequestHandler): + executor = ThreadPoolExecutor(max_workers=3) + + def query(self): + tracer = self.settings['datadog_trace']['tracer'] + with tracer.trace('tornado.executor.query'): + time.sleep(0.05) + + @tornado.gen.coroutine + def get(self): + # run the query in another Executor, without using + # Tornado decorators + yield self.executor.submit(self.query) + self.write('OK') + + +class ExecutorDelayedHandler(tornado.web.RequestHandler): + # used automatically by the @run_on_executor decorator + executor = ThreadPoolExecutor(max_workers=3) + + @tornado.concurrent.run_on_executor + def outer_executor(self): + # waiting here means expecting that the `get()` flushes + # the request trace + time.sleep(0.01) + tracer = self.settings['datadog_trace']['tracer'] + with tracer.trace('tornado.executor.with'): + time.sleep(0.05) + + @tornado.gen.coroutine + def get(self): + # we don't yield here but we expect that the outer_executor + # has the right parent; tests that use this handler, must + # yield sleep() to wait thread execution + self.outer_executor() + self.write('OK') + + +try: + class ExecutorCustomHandler(tornado.web.RequestHandler): + # not used automatically, a kwarg is required + custom_thread_pool = ThreadPoolExecutor(max_workers=3) + + @tornado.concurrent.run_on_executor(executor='custom_thread_pool') + def outer_executor(self): + # wait before creating a trace so that we're sure + # the `tornado.executor.with` span has the right + # parent + tracer = self.settings['datadog_trace']['tracer'] + with tracer.trace('tornado.executor.with'): + time.sleep(0.05) + + @tornado.gen.coroutine + def get(self): + yield self.outer_executor() + self.write('OK') +except TypeError: + # the class definition fails because Tornado 4.0 and 4.1 don't support + # `run_on_executor` with params. Because it's just this case, we can + # use a try-except block, but if we have another case we may move + # these endpoints outside the module and use a compatibility system + class ExecutorCustomHandler(tornado.web.RequestHandler): + pass + + +class ExecutorCustomArgsHandler(tornado.web.RequestHandler): + @tornado.gen.coroutine + def get(self): + # this is not a legit use of the decorator so a failure is expected + @tornado.concurrent.run_on_executor(object(), executor='_pool') + def outer_executor(self): + pass + + yield outer_executor(self) + self.write('OK') + + +class ExecutorExceptionHandler(tornado.web.RequestHandler): + # used automatically by the @run_on_executor decorator + executor = ThreadPoolExecutor(max_workers=3) + + @tornado.concurrent.run_on_executor + def outer_executor(self): + # wait before creating a trace so that we're sure + # the `tornado.executor.with` span has the right + # parent + time.sleep(0.05) + tracer = self.settings['datadog_trace']['tracer'] + with tracer.trace('tornado.executor.with'): + raise Exception('Ouch!') + + @tornado.gen.coroutine + def get(self): + yield self.outer_executor() + self.write('OK') + + +class ExecutorWrapHandler(tornado.web.RequestHandler): + # used automatically by the @run_on_executor decorator + executor = ThreadPoolExecutor(max_workers=3) + + @tornado.gen.coroutine + def get(self): + tracer = self.settings['datadog_trace']['tracer'] + + @tracer.wrap('tornado.executor.wrap') + @tornado.concurrent.run_on_executor + def outer_executor(self): + time.sleep(0.05) + + yield outer_executor(self) + self.write('OK') + + +class ExecutorExceptionWrapHandler(tornado.web.RequestHandler): + # used automatically by the @run_on_executor decorator + executor = ThreadPoolExecutor(max_workers=3) + + @tornado.gen.coroutine + def get(self): + tracer = self.settings['datadog_trace']['tracer'] + + @tracer.wrap('tornado.executor.wrap') + @tornado.concurrent.run_on_executor + def outer_executor(self): + time.sleep(0.05) + raise Exception('Ouch!') + + yield outer_executor(self) + self.write('OK') + + +def make_app(settings={}): + """ + Create a Tornado web application, useful to test + different behaviors. + """ + settings['ui_modules'] = uimodules + + return tornado.web.Application([ + # custom handlers + (r'/success/', SuccessHandler), + (r'/nested/', NestedHandler), + (r'/nested_wrap/', NestedWrapHandler), + (r'/nested_exception_wrap/', NestedExceptionWrapHandler), + (r'/exception/', ExceptionHandler), + (r'/http_exception/', HTTPExceptionHandler), + (r'/http_exception_500/', HTTPException500Handler), + (r'/template/', TemplateHandler), + (r'/template_partial/', TemplatePartialHandler), + (r'/template_exception/', TemplateExceptionHandler), + # handlers that spawn new threads + (r'/executor_handler/', ExecutorHandler), + (r'/executor_submit_handler/', ExecutorSubmitHandler), + (r'/executor_delayed_handler/', ExecutorDelayedHandler), + (r'/executor_custom_handler/', ExecutorCustomHandler), + (r'/executor_custom_args_handler/', ExecutorCustomArgsHandler), + (r'/executor_exception/', ExecutorExceptionHandler), + (r'/executor_wrap_handler/', ExecutorWrapHandler), + (r'/executor_wrap_exception/', ExecutorExceptionWrapHandler), + # built-in handlers + (r'/redirect/', tornado.web.RedirectHandler, {'url': '/success/'}), + (r'/statics/(.*)', tornado.web.StaticFileHandler, {'path': STATIC_DIR}), + # synchronous handlers + (r'/sync_success/', SyncSuccessHandler), + (r'/sync_exception/', SyncExceptionHandler), + (r'/sync_nested_wrap/', SyncNestedWrapHandler), + (r'/sync_nested_exception_wrap/', SyncNestedExceptionWrapHandler), + ], **settings) diff --git a/tests/contrib/tornado/web/compat.py b/tests/contrib/tornado/web/compat.py new file mode 100644 index 0000000000..87ad3bad56 --- /dev/null +++ b/tests/contrib/tornado/web/compat.py @@ -0,0 +1,35 @@ +from tornado.concurrent import Future +import tornado.gen +from tornado.ioloop import IOLoop + + +try: + from concurrent.futures import ThreadPoolExecutor +except ImportError: + from tornado.concurrent import DummyExecutor + + class ThreadPoolExecutor(DummyExecutor): + """ + Fake executor class used to test our tracer when Python 2 is used + without the `futures` backport. This is not a real use case, but + it's required to be defensive when we have different `Executor` + implementations. + """ + def __init__(self, *args, **kwargs): + # we accept any kind of interface + super(ThreadPoolExecutor, self).__init__() + + +if hasattr(tornado.gen, 'sleep'): + sleep = tornado.gen.sleep +else: + # Tornado <= 4.0 + def sleep(duration): + """ + Compatibility helper that return a Future() that can be yielded. + This is used because Tornado 4.0 doesn't have a ``gen.sleep()`` + function, that we require to test the ``TracerStackContext``. + """ + f = Future() + IOLoop.current().call_later(duration, lambda: f.set_result(None)) + return f diff --git a/tests/contrib/tornado/web/statics/empty.txt b/tests/contrib/tornado/web/statics/empty.txt new file mode 100644 index 0000000000..3083bfa69c --- /dev/null +++ b/tests/contrib/tornado/web/statics/empty.txt @@ -0,0 +1 @@ +Static file diff --git a/tests/contrib/tornado/web/templates/exception.html b/tests/contrib/tornado/web/templates/exception.html new file mode 100644 index 0000000000..8315c9aba6 --- /dev/null +++ b/tests/contrib/tornado/web/templates/exception.html @@ -0,0 +1 @@ +{% module ModuleThatDoesNotExist() %} diff --git a/tests/contrib/tornado/web/templates/item.html b/tests/contrib/tornado/web/templates/item.html new file mode 100644 index 0000000000..43a1ec3580 --- /dev/null +++ b/tests/contrib/tornado/web/templates/item.html @@ -0,0 +1 @@ +* {{ item }} diff --git a/tests/contrib/tornado/web/templates/list.html b/tests/contrib/tornado/web/templates/list.html new file mode 100644 index 0000000000..4a0d2ed64e --- /dev/null +++ b/tests/contrib/tornado/web/templates/list.html @@ -0,0 +1,4 @@ +This is a list: +{% for item in items %} + {% module Item(item) %} +{% end %} diff --git a/tests/contrib/tornado/web/templates/page.html b/tests/contrib/tornado/web/templates/page.html new file mode 100644 index 0000000000..7a857c3126 --- /dev/null +++ b/tests/contrib/tornado/web/templates/page.html @@ -0,0 +1 @@ +This is a rendered page called "{{ name }}" diff --git a/tests/contrib/tornado/web/uimodules.py b/tests/contrib/tornado/web/uimodules.py new file mode 100644 index 0000000000..e09770dfc9 --- /dev/null +++ b/tests/contrib/tornado/web/uimodules.py @@ -0,0 +1,6 @@ +import tornado + + +class Item(tornado.web.UIModule): + def render(self, item): + return self.render_string('templates/item.html', item=item) diff --git a/tests/contrib/vertica/__init__.py b/tests/contrib/vertica/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/contrib/vertica/test_vertica.py b/tests/contrib/vertica/test_vertica.py new file mode 100644 index 0000000000..753915cb73 --- /dev/null +++ b/tests/contrib/vertica/test_vertica.py @@ -0,0 +1,430 @@ +# 3p +import pytest +from ddtrace.vendor import wrapt + +# project +import ddtrace +from ddtrace import Pin, config +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.contrib.vertica.patch import patch, unpatch +from ddtrace.ext import errors +from ddtrace.utils.merge import deepmerge + +# testing +from tests.base import BaseTracerTestCase +from tests.contrib.config import VERTICA_CONFIG +from tests.opentracer.utils import init_tracer +from tests.test_tracer import get_dummy_tracer + +TEST_TABLE = 'test_table' + + +@pytest.fixture(scope='function') +def test_tracer(request): + request.cls.test_tracer = get_dummy_tracer() + return request.cls.test_tracer + + +@pytest.fixture(scope='function') +def test_conn(request, test_tracer): + ddtrace.tracer = test_tracer + patch() + + import vertica_python # must happen AFTER installing with patch() + + conn = vertica_python.connect(**VERTICA_CONFIG) + + cur = conn.cursor() + cur.execute('DROP TABLE IF EXISTS {}'.format(TEST_TABLE)) + cur.execute( + """CREATE TABLE {} ( + a INT, + b VARCHAR(32) + ) + """.format( + TEST_TABLE + ) + ) + test_tracer.writer.pop() + + request.cls.test_conn = (conn, cur) + return conn, cur + + +class TestVerticaPatching(BaseTracerTestCase): + def tearDown(self): + super(TestVerticaPatching, self).tearDown() + unpatch() + + def test_not_patched(self): + """Ensure that vertica is not patched somewhere before our tests.""" + import vertica_python + + assert not isinstance(vertica_python.Connection.cursor, wrapt.ObjectProxy) + assert not isinstance( + vertica_python.vertica.cursor.Cursor.execute, wrapt.ObjectProxy + ) + + def test_patch_after_import(self): + """Patching _after_ the import will not work because we hook into + the module import system. + + Vertica uses a local reference to `Cursor` which won't get patched + if we call `patch` after the module has already been imported. + """ + import vertica_python + + assert not isinstance(vertica_python.vertica.connection.Connection.cursor, wrapt.ObjectProxy) + assert not isinstance( + vertica_python.vertica.cursor.Cursor.execute, wrapt.ObjectProxy + ) + + patch() + + conn = vertica_python.connect(**VERTICA_CONFIG) + cursor = conn.cursor() + assert not isinstance(cursor, wrapt.ObjectProxy) + + def test_patch_before_import(self): + patch() + import vertica_python + + # use a patched method from each class as indicators + assert isinstance(vertica_python.Connection.cursor, wrapt.ObjectProxy) + assert isinstance( + vertica_python.vertica.cursor.Cursor.execute, wrapt.ObjectProxy + ) + + def test_idempotent_patch(self): + patch() + patch() + import vertica_python + + assert not isinstance( + vertica_python.Connection.cursor.__wrapped__, wrapt.ObjectProxy + ) + assert not isinstance( + vertica_python.vertica.cursor.Cursor.execute.__wrapped__, wrapt.ObjectProxy + ) + assert isinstance(vertica_python.Connection.cursor, wrapt.ObjectProxy) + assert isinstance( + vertica_python.vertica.cursor.Cursor.execute, wrapt.ObjectProxy + ) + + def test_unpatch_before_import(self): + patch() + unpatch() + import vertica_python + + assert not isinstance(vertica_python.Connection.cursor, wrapt.ObjectProxy) + assert not isinstance( + vertica_python.vertica.cursor.Cursor.execute, wrapt.ObjectProxy + ) + + def test_unpatch_after_import(self): + patch() + import vertica_python + + unpatch() + assert not isinstance(vertica_python.Connection.cursor, wrapt.ObjectProxy) + assert not isinstance( + vertica_python.vertica.cursor.Cursor.execute, wrapt.ObjectProxy + ) + + +@pytest.mark.usefixtures('test_tracer', 'test_conn') +class TestVertica(BaseTracerTestCase): + def tearDown(self): + super(TestVertica, self).tearDown() + + unpatch() + + def test_configuration_service_name(self): + """Ensure that the integration can be configured.""" + with self.override_config('vertica', dict(service_name='test_svc_name')): + patch() + import vertica_python + + test_tracer = get_dummy_tracer() + + conn = vertica_python.connect(**VERTICA_CONFIG) + cur = conn.cursor() + Pin.override(cur, tracer=test_tracer) + with conn: + cur.execute('DROP TABLE IF EXISTS {}'.format(TEST_TABLE)) + spans = test_tracer.writer.pop() + assert len(spans) == 1 + assert spans[0].service == 'test_svc_name' + + def test_configuration_routine(self): + """Ensure that the integration routines can be configured.""" + routine_config = dict( + patch={ + 'vertica_python.vertica.connection.Connection': dict( + routines=dict( + cursor=dict( + operation_name='get_cursor', + trace_enabled=True, + ), + ), + ), + }, + ) + + # Make a copy of the vertica config first before we merge our settings over + # DEV: First argument gets merged into the second + copy = deepmerge(config.vertica, dict()) + overrides = deepmerge(routine_config, copy) + with self.override_config('vertica', overrides): + patch() + import vertica_python + + test_tracer = get_dummy_tracer() + + conn = vertica_python.connect(**VERTICA_CONFIG) + Pin.override(conn, service='mycustomservice', tracer=test_tracer) + conn.cursor() # should be traced now + conn.close() + spans = test_tracer.writer.pop() + assert len(spans) == 1 + assert spans[0].name == 'get_cursor' + assert spans[0].service == 'mycustomservice' + + def test_execute_metadata(self): + """Metadata related to an `execute` call should be captured.""" + conn, cur = self.test_conn + + Pin.override(cur, tracer=self.test_tracer) + + with conn: + cur.execute("INSERT INTO {} (a, b) VALUES (1, 'aa');".format(TEST_TABLE)) + cur.execute('SELECT * FROM {};'.format(TEST_TABLE)) + + spans = self.test_tracer.writer.pop() + assert len(spans) == 2 + + # check all the metadata + assert spans[0].service == 'vertica' + assert spans[0].span_type == 'sql' + assert spans[0].name == 'vertica.query' + assert spans[0].get_metric('db.rowcount') == -1 + query = "INSERT INTO test_table (a, b) VALUES (1, 'aa');" + assert spans[0].resource == query + assert spans[0].get_tag('out.host') == '127.0.0.1' + assert spans[0].get_metric('out.port') == 5433 + assert spans[0].get_tag('db.name') == 'docker' + assert spans[0].get_tag('db.user') == 'dbadmin' + + assert spans[1].resource == 'SELECT * FROM test_table;' + + def test_cursor_override(self): + """Test overriding the tracer with our own.""" + conn, cur = self.test_conn + + Pin.override(cur, tracer=self.test_tracer) + + with conn: + cur.execute("INSERT INTO {} (a, b) VALUES (1, 'aa');".format(TEST_TABLE)) + cur.execute('SELECT * FROM {};'.format(TEST_TABLE)) + + spans = self.test_tracer.writer.pop() + assert len(spans) == 2 + + # check all the metadata + assert spans[0].service == 'vertica' + assert spans[0].span_type == 'sql' + assert spans[0].name == 'vertica.query' + assert spans[0].get_metric('db.rowcount') == -1 + query = "INSERT INTO test_table (a, b) VALUES (1, 'aa');" + assert spans[0].resource == query + assert spans[0].get_tag('out.host') == '127.0.0.1' + assert spans[0].get_metric('out.port') == 5433 + + assert spans[1].resource == 'SELECT * FROM test_table;' + + def test_execute_exception(self): + """Exceptions should result in appropriate span tagging.""" + from vertica_python.errors import VerticaSyntaxError + + conn, cur = self.test_conn + + with conn, pytest.raises(VerticaSyntaxError): + cur.execute('INVALID QUERY') + + spans = self.test_tracer.writer.pop() + assert len(spans) == 2 + + # check all the metadata + assert spans[0].service == 'vertica' + assert spans[0].error == 1 + assert 'INVALID QUERY' in spans[0].get_tag(errors.ERROR_MSG) + error_type = 'vertica_python.errors.VerticaSyntaxError' + assert spans[0].get_tag(errors.ERROR_TYPE) == error_type + assert spans[0].get_tag(errors.ERROR_STACK) + + assert spans[1].resource == 'COMMIT;' + + def test_rowcount_oddity(self): + """Vertica treats rowcount specially. Ensure we handle it. + + See https://github.com/vertica/vertica-python/tree/029a65a862da893e7bd641a68f772019fd9ecc99#rowcount-oddities + """ + conn, cur = self.test_conn + + with conn: + cur.execute( + """ + INSERT INTO {} (a, b) + SELECT 1, 'a' + UNION ALL + SELECT 2, 'b' + UNION ALL + SELECT 3, 'c' + UNION ALL + SELECT 4, 'd' + UNION ALL + SELECT 5, 'e' + """.format( + TEST_TABLE + ) + ) + assert cur.rowcount == -1 + + cur.execute('SELECT * FROM {};'.format(TEST_TABLE)) + cur.fetchone() + cur.rowcount == 1 + cur.fetchone() + cur.rowcount == 2 + # fetchall just calls fetchone for each remaining row + cur.fetchall() + cur.rowcount == 5 + + spans = self.test_tracer.writer.pop() + assert len(spans) == 9 + + # check all the rowcounts + assert spans[0].name == 'vertica.query' + assert spans[1].get_metric('db.rowcount') == -1 + assert spans[1].name == 'vertica.query' + assert spans[1].get_metric('db.rowcount') == -1 + assert spans[2].name == 'vertica.fetchone' + assert spans[2].get_tag('out.host') == '127.0.0.1' + assert spans[2].get_metric('out.port') == 5433 + assert spans[2].get_metric('db.rowcount') == 1 + assert spans[3].name == 'vertica.fetchone' + assert spans[3].get_metric('db.rowcount') == 2 + assert spans[4].name == 'vertica.fetchall' + assert spans[4].get_metric('db.rowcount') == 5 + + def test_nextset(self): + """cursor.nextset() should be traced.""" + conn, cur = self.test_conn + + with conn: + cur.execute('SELECT * FROM {0}; SELECT * FROM {0}'.format(TEST_TABLE)) + cur.nextset() + + spans = self.test_tracer.writer.pop() + assert len(spans) == 3 + + # check all the rowcounts + assert spans[0].name == 'vertica.query' + assert spans[1].get_metric('db.rowcount') == -1 + assert spans[1].name == 'vertica.nextset' + assert spans[1].get_metric('db.rowcount') == -1 + assert spans[2].name == 'vertica.query' + assert spans[2].resource == 'COMMIT;' + + def test_copy(self): + """cursor.copy() should be traced.""" + conn, cur = self.test_conn + + with conn: + cur.copy( + "COPY {0} (a, b) FROM STDIN DELIMITER ','".format(TEST_TABLE), + '1,foo\n2,bar', + ) + + spans = self.test_tracer.writer.pop() + assert len(spans) == 2 + + # check all the rowcounts + assert spans[0].name == 'vertica.copy' + query = "COPY test_table (a, b) FROM STDIN DELIMITER ','" + assert spans[0].resource == query + assert spans[1].name == 'vertica.query' + assert spans[1].resource == 'COMMIT;' + + def test_opentracing(self): + """Ensure OpenTracing works with vertica.""" + conn, cur = self.test_conn + + ot_tracer = init_tracer('vertica_svc', self.test_tracer) + + with ot_tracer.start_active_span('vertica_execute'): + cur.execute("INSERT INTO {} (a, b) VALUES (1, 'aa');".format(TEST_TABLE)) + conn.close() + + spans = self.test_tracer.writer.pop() + assert len(spans) == 2 + ot_span, dd_span = spans + + # confirm the parenting + assert ot_span.parent_id is None + assert dd_span.parent_id == ot_span.span_id + + assert dd_span.service == 'vertica' + assert dd_span.span_type == 'sql' + assert dd_span.name == 'vertica.query' + assert dd_span.get_metric('db.rowcount') == -1 + query = "INSERT INTO test_table (a, b) VALUES (1, 'aa');" + assert dd_span.resource == query + assert dd_span.get_tag('out.host') == '127.0.0.1' + assert dd_span.get_metric('out.port') == 5433 + + def test_analytics_default(self): + conn, cur = self.test_conn + + Pin.override(cur, tracer=self.test_tracer) + + with conn: + cur.execute("INSERT INTO {} (a, b) VALUES (1, 'aa');".format(TEST_TABLE)) + cur.execute('SELECT * FROM {};'.format(TEST_TABLE)) + + spans = self.test_tracer.writer.pop() + self.assertEqual(len(spans), 2) + self.assertIsNone(spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY)) + + def test_analytics_with_rate(self): + with self.override_config( + 'vertica', + dict(analytics_enabled=True, analytics_sample_rate=0.5) + ): + conn, cur = self.test_conn + + Pin.override(cur, tracer=self.test_tracer) + + with conn: + cur.execute("INSERT INTO {} (a, b) VALUES (1, 'aa');".format(TEST_TABLE)) + cur.execute('SELECT * FROM {};'.format(TEST_TABLE)) + + spans = self.test_tracer.writer.pop() + self.assertEqual(len(spans), 2) + self.assertEqual(spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY), 0.5) + + def test_analytics_without_rate(self): + with self.override_config( + 'vertica', + dict(analytics_enabled=True) + ): + conn, cur = self.test_conn + + Pin.override(cur, tracer=self.test_tracer) + + with conn: + cur.execute("INSERT INTO {} (a, b) VALUES (1, 'aa');".format(TEST_TABLE)) + cur.execute('SELECT * FROM {};'.format(TEST_TABLE)) + + spans = self.test_tracer.writer.pop() + self.assertEqual(len(spans), 2) + self.assertEqual(spans[0].get_metric(ANALYTICS_SAMPLE_RATE_KEY), 1.0) diff --git a/tests/ddtrace_run.py b/tests/ddtrace_run.py new file mode 100644 index 0000000000..89d9cbb8c4 --- /dev/null +++ b/tests/ddtrace_run.py @@ -0,0 +1,9 @@ +import os +import sys + +# DEV: We must append to sys path before importing ddtrace_run +sys.path.append('.') +from ddtrace.commands import ddtrace_run # noqa + +os.environ['PYTHONPATH'] = '{}:{}'.format(os.getenv('PYTHONPATH'), os.path.abspath('.')) +ddtrace_run.main() diff --git a/tests/internal/__init__.py b/tests/internal/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/internal/runtime/__init__.py b/tests/internal/runtime/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/internal/runtime/test_container.py b/tests/internal/runtime/test_container.py new file mode 100644 index 0000000000..2dce42098a --- /dev/null +++ b/tests/internal/runtime/test_container.py @@ -0,0 +1,302 @@ +import mock + +import pytest + +from ddtrace.compat import PY2 +from ddtrace.internal.runtime.container import CGroupInfo, get_container_info + +from .utils import cgroup_line_valid_test_cases + +# Map expected Py2 exception to Py3 name +if PY2: + FileNotFoundError = IOError # noqa: A001 + + +def get_mock_open(read_data=None): + mock_open = mock.mock_open(read_data=read_data) + return mock.patch('ddtrace.internal.runtime.container.open', mock_open) + + +def test_cgroup_info_init(): + # Assert default all attributes to `None` + info = CGroupInfo() + for attr in ('id', 'groups', 'path', 'container_id', 'controllers', 'pod_id'): + assert getattr(info, attr) is None + + # Assert init with property sets property + info = CGroupInfo(container_id='test-container-id') + assert info.container_id == 'test-container-id' + + +@pytest.mark.parametrize( + 'line,expected_info', + + # Valid generated cases + one off cases + cgroup_line_valid_test_cases() + [ + # Valid, extra spaces + ( + ' 13:name=systemd:/docker/3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f869860 ', + CGroupInfo( + id='13', + groups='name=systemd', + controllers=['name=systemd'], + path='/docker/3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f869860', + container_id='3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f869860', + pod_id=None, + ), + ), + # Valid, bookended newlines + ( + '\r\n13:name=systemd:/docker/3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f869860\r\n', + CGroupInfo( + id='13', + groups='name=systemd', + controllers=['name=systemd'], + path='/docker/3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f869860', + container_id='3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f869860', + pod_id=None, + ), + ), + + # Invalid container_ids + ( + # One character too short + '13:name=systemd:/docker/3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f86986', + CGroupInfo( + id='13', + groups='name=systemd', + controllers=['name=systemd'], + path='/docker/3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f86986', + container_id=None, + pod_id=None, + ), + ), + ( + # One character too long + '13:name=systemd:/docker/3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f8698600', + CGroupInfo( + id='13', + groups='name=systemd', + controllers=['name=systemd'], + path='/docker/3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f8698600', + container_id=None, + pod_id=None, + ), + ), + ( + # Non-hex + '13:name=systemd:/docker/3726184226f5d3147c25fzyxw5b60097e378e8a720503a5e19ecfdf29f869860', + CGroupInfo( + id='13', + groups='name=systemd', + controllers=['name=systemd'], + path='/docker/3726184226f5d3147c25fzyxw5b60097e378e8a720503a5e19ecfdf29f869860', + container_id=None, + pod_id=None, + ), + ), + + # Invalid id + ( + # non-digit + 'a:name=systemd:/docker/3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f869860', + None, + ), + ( + # missing + ':name=systemd:/docker/3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f869860', + None, + ), + + # Missing group + ( + # empty + '13::/docker/3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f869860', + CGroupInfo( + id='13', + groups='', + controllers=[], + path='/docker/3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f869860', + container_id='3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f869860', + pod_id=None, + ), + ), + ( + # missing + '13:/docker/3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f869860', + None, + ), + + + # Empty line + ( + '', + None, + ), + ], +) +def test_cgroup_info_from_line(line, expected_info): + info = CGroupInfo.from_line(line) + + if expected_info is None: + assert info is None, line + else: + for attr in ('id', 'groups', 'path', 'container_id', 'controllers', 'pod_id'): + assert getattr(info, attr) == getattr(expected_info, attr), line + + +@pytest.mark.parametrize( + 'file_contents,container_id', + ( + # Docker file + ( + """ +13:name=systemd:/docker/3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f869860 +12:pids:/docker/3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f869860 +11:hugetlb:/docker/3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f869860 +10:net_prio:/docker/3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f869860 +9:perf_event:/docker/3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f869860 +8:net_cls:/docker/3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f869860 +7:freezer:/docker/3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f869860 +6:devices:/docker/3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f869860 +5:memory:/docker/3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f869860 +4:blkio:/docker/3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f869860 +3:cpuacct:/docker/3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f869860 +2:cpu:/docker/3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f869860 +1:cpuset:/docker/3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f869860 + """, + '3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f869860', + ), + + # k8s file + ( + """ +11:perf_event:/kubepods/test/pod3d274242-8ee0-11e9-a8a6-1e68d864ef1a/3e74d3fd9db4c9dd921ae05c2502fb984d0cde1b36e581b13f79c639da4518a1 +10:pids:/kubepods/test/pod3d274242-8ee0-11e9-a8a6-1e68d864ef1a/3e74d3fd9db4c9dd921ae05c2502fb984d0cde1b36e581b13f79c639da4518a1 +9:memory:/kubepods/test/pod3d274242-8ee0-11e9-a8a6-1e68d864ef1a/3e74d3fd9db4c9dd921ae05c2502fb984d0cde1b36e581b13f79c639da4518a1 +8:cpu,cpuacct:/kubepods/test/pod3d274242-8ee0-11e9-a8a6-1e68d864ef1a/3e74d3fd9db4c9dd921ae05c2502fb984d0cde1b36e581b13f79c639da4518a1 +7:blkio:/kubepods/test/pod3d274242-8ee0-11e9-a8a6-1e68d864ef1a/3e74d3fd9db4c9dd921ae05c2502fb984d0cde1b36e581b13f79c639da4518a1 +6:cpuset:/kubepods/test/pod3d274242-8ee0-11e9-a8a6-1e68d864ef1a/3e74d3fd9db4c9dd921ae05c2502fb984d0cde1b36e581b13f79c639da4518a1 +5:devices:/kubepods/test/pod3d274242-8ee0-11e9-a8a6-1e68d864ef1a/3e74d3fd9db4c9dd921ae05c2502fb984d0cde1b36e581b13f79c639da4518a1 +4:freezer:/kubepods/test/pod3d274242-8ee0-11e9-a8a6-1e68d864ef1a/3e74d3fd9db4c9dd921ae05c2502fb984d0cde1b36e581b13f79c639da4518a1 +3:net_cls,net_prio:/kubepods/test/pod3d274242-8ee0-11e9-a8a6-1e68d864ef1a/3e74d3fd9db4c9dd921ae05c2502fb984d0cde1b36e581b13f79c639da4518a1 +2:hugetlb:/kubepods/test/pod3d274242-8ee0-11e9-a8a6-1e68d864ef1a/3e74d3fd9db4c9dd921ae05c2502fb984d0cde1b36e581b13f79c639da4518a1 +1:name=systemd:/kubepods/test/pod3d274242-8ee0-11e9-a8a6-1e68d864ef1a/3e74d3fd9db4c9dd921ae05c2502fb984d0cde1b36e581b13f79c639da4518a1 + """, + '3e74d3fd9db4c9dd921ae05c2502fb984d0cde1b36e581b13f79c639da4518a1', + ), + + # ECS file + ( + """ +9:perf_event:/ecs/test-ecs-classic/5a0d5ceddf6c44c1928d367a815d890f/38fac3e99302b3622be089dd41e7ccf38aff368a86cc339972075136ee2710ce +8:memory:/ecs/test-ecs-classic/5a0d5ceddf6c44c1928d367a815d890f/38fac3e99302b3622be089dd41e7ccf38aff368a86cc339972075136ee2710ce +7:hugetlb:/ecs/test-ecs-classic/5a0d5ceddf6c44c1928d367a815d890f/38fac3e99302b3622be089dd41e7ccf38aff368a86cc339972075136ee2710ce +6:freezer:/ecs/test-ecs-classic/5a0d5ceddf6c44c1928d367a815d890f/38fac3e99302b3622be089dd41e7ccf38aff368a86cc339972075136ee2710ce +5:devices:/ecs/test-ecs-classic/5a0d5ceddf6c44c1928d367a815d890f/38fac3e99302b3622be089dd41e7ccf38aff368a86cc339972075136ee2710ce +4:cpuset:/ecs/test-ecs-classic/5a0d5ceddf6c44c1928d367a815d890f/38fac3e99302b3622be089dd41e7ccf38aff368a86cc339972075136ee2710ce +3:cpuacct:/ecs/test-ecs-classic/5a0d5ceddf6c44c1928d367a815d890f/38fac3e99302b3622be089dd41e7ccf38aff368a86cc339972075136ee2710ce +2:cpu:/ecs/test-ecs-classic/5a0d5ceddf6c44c1928d367a815d890f/38fac3e99302b3622be089dd41e7ccf38aff368a86cc339972075136ee2710ce +1:blkio:/ecs/test-ecs-classic/5a0d5ceddf6c44c1928d367a815d890f/38fac3e99302b3622be089dd41e7ccf38aff368a86cc339972075136ee2710ce + """, + '38fac3e99302b3622be089dd41e7ccf38aff368a86cc339972075136ee2710ce', + ), + + # Fargate file + ( + """ +11:hugetlb:/ecs/55091c13-b8cf-4801-b527-f4601742204d/432624d2150b349fe35ba397284dea788c2bf66b885d14dfc1569b01890ca7da +10:pids:/ecs/55091c13-b8cf-4801-b527-f4601742204d/432624d2150b349fe35ba397284dea788c2bf66b885d14dfc1569b01890ca7da +9:cpuset:/ecs/55091c13-b8cf-4801-b527-f4601742204d/432624d2150b349fe35ba397284dea788c2bf66b885d14dfc1569b01890ca7da +8:net_cls,net_prio:/ecs/55091c13-b8cf-4801-b527-f4601742204d/432624d2150b349fe35ba397284dea788c2bf66b885d14dfc1569b01890ca7da +7:cpu,cpuacct:/ecs/55091c13-b8cf-4801-b527-f4601742204d/432624d2150b349fe35ba397284dea788c2bf66b885d14dfc1569b01890ca7da +6:perf_event:/ecs/55091c13-b8cf-4801-b527-f4601742204d/432624d2150b349fe35ba397284dea788c2bf66b885d14dfc1569b01890ca7da +5:freezer:/ecs/55091c13-b8cf-4801-b527-f4601742204d/432624d2150b349fe35ba397284dea788c2bf66b885d14dfc1569b01890ca7da +4:devices:/ecs/55091c13-b8cf-4801-b527-f4601742204d/432624d2150b349fe35ba397284dea788c2bf66b885d14dfc1569b01890ca7da +3:blkio:/ecs/55091c13-b8cf-4801-b527-f4601742204d/432624d2150b349fe35ba397284dea788c2bf66b885d14dfc1569b01890ca7da +2:memory:/ecs/55091c13-b8cf-4801-b527-f4601742204d/432624d2150b349fe35ba397284dea788c2bf66b885d14dfc1569b01890ca7da +1:name=systemd:/ecs/55091c13-b8cf-4801-b527-f4601742204d/432624d2150b349fe35ba397284dea788c2bf66b885d14dfc1569b01890ca7da + """, + '432624d2150b349fe35ba397284dea788c2bf66b885d14dfc1569b01890ca7da', + ), + + # Linux non-containerized file + ( + """ +11:blkio:/user.slice/user-0.slice/session-14.scope +10:memory:/user.slice/user-0.slice/session-14.scope +9:hugetlb:/ +8:cpuset:/ +7:pids:/user.slice/user-0.slice/session-14.scope +6:freezer:/ +5:net_cls,net_prio:/ +4:perf_event:/ +3:cpu,cpuacct:/user.slice/user-0.slice/session-14.scope +2:devices:/user.slice/user-0.slice/session-14.scope +1:name=systemd:/user.slice/user-0.slice/session-14.scope + """, + None, + ), + + # Empty file + ( + '', + None, + ), + + # Missing file + ( + None, + None, + ) + ) +) +def test_get_container_info(file_contents, container_id): + with get_mock_open(read_data=file_contents) as mock_open: + # simulate the file not being found + if file_contents is None: + mock_open.side_effect = FileNotFoundError + + info = get_container_info() + + if container_id is None: + assert info is None + else: + assert info.container_id == container_id + + mock_open.assert_called_once_with('/proc/self/cgroup', mode='r') + + +@pytest.mark.parametrize( + 'pid,file_name', + ( + ('13', '/proc/13/cgroup'), + (13, '/proc/13/cgroup'), + ('self', '/proc/self/cgroup'), + ) +) +def test_get_container_info_with_pid(pid, file_name): + # DEV: We need at least 1 line for the loop to call `CGroupInfo.from_line` + with get_mock_open(read_data='\r\n') as mock_open: + assert get_container_info(pid=pid) is None + + mock_open.assert_called_once_with(file_name, mode='r') + + +@mock.patch('ddtrace.internal.runtime.container.CGroupInfo.from_line') +@mock.patch('ddtrace.internal.runtime.container.log') +def test_get_container_info_exception(mock_log, mock_from_line): + exception = Exception() + mock_from_line.side_effect = exception + + # DEV: We need at least 1 line for the loop to call `CGroupInfo.from_line` + with get_mock_open(read_data='\r\n') as mock_open: + # Assert calling `get_container_info()` does not bubble up the exception + assert get_container_info() is None + + # Assert we called everything we expected + mock_from_line.assert_called_once_with('\r\n') + mock_open.assert_called_once_with('/proc/self/cgroup', mode='r') + + # Ensure we logged the exception + mock_log.debug.assert_called_once_with('Failed to parse cgroup file for pid %r', 'self', exc_info=True) diff --git a/tests/internal/runtime/test_metric_collectors.py b/tests/internal/runtime/test_metric_collectors.py new file mode 100644 index 0000000000..1fd3e705a7 --- /dev/null +++ b/tests/internal/runtime/test_metric_collectors.py @@ -0,0 +1,63 @@ +from ddtrace.internal.runtime.metric_collectors import ( + RuntimeMetricCollector, + GCRuntimeMetricCollector, + PSUtilRuntimeMetricCollector, +) + +from ddtrace.internal.runtime.constants import ( + GC_COUNT_GEN0, + GC_RUNTIME_METRICS, + PSUTIL_RUNTIME_METRICS, +) +from ...base import BaseTestCase + + +class TestRuntimeMetricCollector(BaseTestCase): + def test_failed_module_load_collect(self): + """Attempts to collect from a collector when it has failed to load its + module should return no metrics gracefully. + """ + class A(RuntimeMetricCollector): + required_modules = ['moduleshouldnotexist'] + + def collect_fn(self, keys): + return {'k': 'v'} + + self.assertIsNotNone(A().collect(), 'collect should return valid metrics') + + +class TestPSUtilRuntimeMetricCollector(BaseTestCase): + def test_metrics(self): + collector = PSUtilRuntimeMetricCollector() + for (key, value) in collector.collect(PSUTIL_RUNTIME_METRICS): + self.assertIsNotNone(value) + + +class TestGCRuntimeMetricCollector(BaseTestCase): + def test_metrics(self): + collector = GCRuntimeMetricCollector() + for (key, value) in collector.collect(GC_RUNTIME_METRICS): + self.assertIsNotNone(value) + + def test_gen1_changes(self): + # disable gc + import gc + gc.disable() + + # start collector and get current gc counts + collector = GCRuntimeMetricCollector() + gc.collect() + start = gc.get_count() + + # create reference + a = [] + collected = collector.collect([GC_COUNT_GEN0]) + self.assertGreater(collected[0][1], start[0]) + + # delete reference and collect + del a + gc.collect() + collected_after = collector.collect([GC_COUNT_GEN0]) + assert len(collected_after) == 1 + assert collected_after[0][0] == 'runtime.python.gc.count.gen0' + assert isinstance(collected_after[0][1], int) diff --git a/tests/internal/runtime/test_metrics.py b/tests/internal/runtime/test_metrics.py new file mode 100644 index 0000000000..0b6dd5a4cb --- /dev/null +++ b/tests/internal/runtime/test_metrics.py @@ -0,0 +1,118 @@ +import mock +from ddtrace.internal.runtime.collector import ValueCollector + +from ...base import BaseTestCase + + +def mocked_collector(mock_collect, **kwargs): + collector = ValueCollector(**kwargs) + collector.collect_fn = mock_collect + return collector + + +class TestValueCollector(BaseTestCase): + + def test_default_usage(self): + mock_collect = mock.MagicMock() + mock_collect.side_effect = lambda k: [ + ('key1', 'value1'), + ('key2', 'value2'), + ] + + vc = mocked_collector(mock_collect) + + self.assertEqual(vc.collect(keys=set(['key1'])), [ + ('key1', 'value1'), + ]) + mock_collect.assert_called_once() + mock_collect.assert_called_with(set(['key1'])) + + self.assertEqual(mock_collect.call_count, 1, + 'Collector is not periodic by default') + + def test_enabled(self): + collect = mock.MagicMock() + vc = mocked_collector(collect, enabled=False) + collect.assert_not_called() + vc.collect() + collect.assert_not_called() + + def test_periodic(self): + collect = mock.MagicMock() + vc = mocked_collector(collect, periodic=True) + vc.collect() + self.assertEqual(collect.call_count, 1) + vc.collect() + self.assertEqual(collect.call_count, 2) + + def test_not_periodic(self): + collect = mock.MagicMock() + vc = mocked_collector(collect) + collect.assert_not_called() + vc.collect() + self.assertEqual(collect.call_count, 1) + vc.collect() + self.assertEqual(collect.call_count, 1) + vc.collect() + self.assertEqual(collect.call_count, 1) + + def test_required_module(self): + mock_module = mock.MagicMock() + mock_module.fn.side_effect = lambda: 'test' + with self.override_sys_modules(dict(A=mock_module)): + class AVC(ValueCollector): + required_modules = ['A'] + + def collect_fn(self, keys): + a = self.modules.get('A') + a.fn() + + vc = AVC() + vc.collect() + mock_module.fn.assert_called_once() + + def test_required_module_not_installed(self): + collect = mock.MagicMock() + with mock.patch('ddtrace.internal.runtime.collector.log') as log_mock: + # Should log a warning (tested below) + vc = mocked_collector(collect, required_modules=['moduleshouldnotexist']) + + # Collect should not be called as the collector should be disabled. + collect.assert_not_called() + vc.collect() + collect.assert_not_called() + + calls = [ + mock.call( + 'Could not import module "%s" for %s. Disabling collector.', + 'moduleshouldnotexist', vc, + ) + ] + log_mock.warning.assert_has_calls(calls) + + def test_collected_values(self): + class V(ValueCollector): + i = 0 + + def collect_fn(self, keys): + self.i += 1 + return [('i', self.i)] + + vc = V() + self.assertEqual(vc.collect(), [('i', 1)]) + self.assertEqual(vc.collect(), [('i', 1)]) + self.assertEqual(vc.collect(), [('i', 1)]) + + def test_collected_values_periodic(self): + class V(ValueCollector): + periodic = True + i = 0 + + def collect_fn(self, keys): + self.i += 1 + return [('i', self.i)] + + vc = V() + self.assertEqual(vc.collect(), [('i', 1)]) + self.assertEqual(vc.collect(), [('i', 2)]) + self.assertEqual(vc.collect(), [('i', 3)]) diff --git a/tests/internal/runtime/test_runtime_metrics.py b/tests/internal/runtime/test_runtime_metrics.py new file mode 100644 index 0000000000..e95a7fb0fd --- /dev/null +++ b/tests/internal/runtime/test_runtime_metrics.py @@ -0,0 +1,119 @@ +import time + +import mock + +from ddtrace.internal.runtime.runtime_metrics import ( + RuntimeTags, + RuntimeMetrics, +) +from ddtrace.internal.runtime.constants import ( + DEFAULT_RUNTIME_METRICS, + GC_COUNT_GEN0, + SERVICE, + ENV +) + +from ...base import ( + BaseTestCase, + BaseTracerTestCase, +) + + +class TestRuntimeTags(BaseTracerTestCase): + def test_all_tags(self): + with self.override_global_tracer(): + with self.trace('test', service='test'): + tags = set([k for (k, v) in RuntimeTags()]) + assert SERVICE in tags + # no env set by default + assert ENV not in tags + + def test_one_tag(self): + with self.override_global_tracer(): + with self.trace('test', service='test'): + tags = [k for (k, v) in RuntimeTags(enabled=[SERVICE])] + self.assertEqual(tags, [SERVICE]) + + def test_env_tag(self): + def filter_only_env_tags(tags): + return [ + (k, v) + for (k, v) in RuntimeTags() + if k == 'env' + ] + + with self.override_global_tracer(): + # first without env tag set in tracer + with self.trace('first-test', service='test'): + tags = filter_only_env_tags(RuntimeTags()) + assert tags == [] + + # then with an env tag set + self.tracer.set_tags({'env': 'tests.dog'}) + with self.trace('second-test', service='test'): + tags = filter_only_env_tags(RuntimeTags()) + assert tags == [('env', 'tests.dog')] + + # check whether updating env works + self.tracer.set_tags({'env': 'staging.dog'}) + with self.trace('third-test', service='test'): + tags = filter_only_env_tags(RuntimeTags()) + assert tags == [('env', 'staging.dog')] + + +class TestRuntimeMetrics(BaseTestCase): + def test_all_metrics(self): + metrics = set([k for (k, v) in RuntimeMetrics()]) + self.assertSetEqual(metrics, DEFAULT_RUNTIME_METRICS) + + def test_one_metric(self): + metrics = [k for (k, v) in RuntimeMetrics(enabled=[GC_COUNT_GEN0])] + self.assertEqual(metrics, [GC_COUNT_GEN0]) + + +class TestRuntimeWorker(BaseTracerTestCase): + def test_tracer_metrics(self): + # Mock socket.socket to hijack the dogstatsd socket + with mock.patch('socket.socket'): + # configure tracer for runtime metrics + self.tracer._RUNTIME_METRICS_INTERVAL = 1. / 4 + self.tracer.configure(collect_metrics=True) + self.tracer.set_tags({'env': 'tests.dog'}) + + with self.override_global_tracer(self.tracer): + root = self.start_span('parent', service='parent') + context = root.context + self.start_span('child', service='child', child_of=context) + + time.sleep(self.tracer._RUNTIME_METRICS_INTERVAL * 2) + + # Get the socket before it disappears + statsd_socket = self.tracer._dogstatsd_client.socket + # now stop collection + self.tracer.configure(collect_metrics=False) + + received = [ + s.args[0].decode('utf-8') for s in statsd_socket.send.mock_calls + ] + + # we expect more than one flush since it is also called on shutdown + assert len(received) > 1 + + # expect all metrics in default set are received + # DEV: dogstatsd gauges in form "{metric_name}:{metric_value}|g#t{tag_name}:{tag_value},..." + self.assertSetEqual( + set([gauge.split(':')[0] + for packet in received + for gauge in packet.split('\n')]), + DEFAULT_RUNTIME_METRICS + ) + + # check to last set of metrics returned to confirm tags were set + for gauge in received[-len(DEFAULT_RUNTIME_METRICS):]: + self.assertRegexpMatches(gauge, 'service:parent') + self.assertRegexpMatches(gauge, 'service:child') + self.assertRegexpMatches(gauge, 'env:tests.dog') + self.assertRegexpMatches(gauge, 'lang_interpreter:') + self.assertRegexpMatches(gauge, 'lang_version:') + self.assertRegexpMatches(gauge, 'lang:') + self.assertRegexpMatches(gauge, 'tracer_version:') diff --git a/tests/internal/runtime/test_tag_collectors.py b/tests/internal/runtime/test_tag_collectors.py new file mode 100644 index 0000000000..2f6ab33d82 --- /dev/null +++ b/tests/internal/runtime/test_tag_collectors.py @@ -0,0 +1,8 @@ +from ddtrace.internal.runtime import constants +from ddtrace.internal.runtime import tag_collectors + + +def test_values(): + ptc = tag_collectors.PlatformTagCollector() + values = dict(ptc.collect()) + assert constants.PLATFORM_TAGS == set(values.keys()) diff --git a/tests/internal/runtime/utils.py b/tests/internal/runtime/utils.py new file mode 100644 index 0000000000..9f70e6c05e --- /dev/null +++ b/tests/internal/runtime/utils.py @@ -0,0 +1,72 @@ +import itertools + +from ddtrace.internal.runtime.container import CGroupInfo + + +def cgroup_line_valid_test_cases(): + controllers = [ + ['name=systemd'], + ['pids'], + ['cpu', 'cpuacct'], + ['perf_event'], + ['net_cls', 'net_prio'], + ] + + ids = [str(i) for i in range(10)] + + container_ids = [ + '3726184226f5d3147c25fdeab5b60097e378e8a720503a5e19ecfdf29f869860', + '37261842-26f5-d314-7c25-fdeab5b60097', + '37261842_26f5_d314_7c25_fdeab5b60097', + ] + + pod_ids = [ + '3d274242-8ee0-11e9-a8a6-1e68d864ef1a', + '3d274242_8ee0_11e9_a8a6_1e68d864ef1a', + ] + + paths = [ + # Docker + '/docker/{0}', + '/docker/{0}.scope', + + # k8s + '/kubepods/test/pod{1}/{0}', + '/kubepods/test/pod{1}.slice/{0}', + '/kubepods/test/pod{1}/{0}.scope', + '/kubepods/test/pod{1}.slice/{0}.scope', + + # ECS + '/ecs/test-ecs-classic/5a0d5ceddf6c44c1928d367a815d890f/{0}', + '/ecs/test-ecs-classic/5a0d5ceddf6c44c1928d367a815d890f/{0}.scope', + + # Fargate + '/ecs/55091c13-b8cf-4801-b527-f4601742204d/{0}', + '/ecs/55091c13-b8cf-4801-b527-f4601742204d/{0}.scope', + + # Linux non-containerized + '/user.slice/user-0.slice/session-83.scope', + ] + + valid_test_cases = dict( + ( + ':'.join([id, ','.join(groups), path.format(container_id, pod_id)]), + CGroupInfo( + id=id, + groups=','.join(groups), + path=path.format(container_id, pod_id), + controllers=groups, + container_id=container_id if '{0}' in path else None, + pod_id=pod_id if '{1}' in path else None, + ) + ) + for path, id, groups, container_id, pod_id + in itertools.product(paths, ids, controllers, container_ids, pod_ids) + ) + # Dedupe test cases + valid_test_cases = list(valid_test_cases.items()) + + # Assert here to ensure we are always testing the number of cases we expect + assert len(valid_test_cases) == 2150 + + return valid_test_cases diff --git a/tests/internal/test_context_manager.py b/tests/internal/test_context_manager.py new file mode 100644 index 0000000000..01f5c1305f --- /dev/null +++ b/tests/internal/test_context_manager.py @@ -0,0 +1,60 @@ +import threading + +from ddtrace.context import Context +from ddtrace.internal.context_manager import DefaultContextManager +from ddtrace.span import Span + +from ..base import BaseTestCase + + +class TestDefaultContextManager(BaseTestCase): + """ + Ensures that a ``ContextManager`` makes the Context + local to each thread or task. + """ + def test_get_or_create(self): + # asking the Context multiple times should return + # always the same instance + ctxm = DefaultContextManager() + assert ctxm.get() == ctxm.get() + + def test_set_context(self): + # the Context can be set in the current Thread + ctx = Context() + ctxm = DefaultContextManager() + assert ctxm.get() is not ctx + + ctxm.set(ctx) + assert ctxm.get() is ctx + + def test_multiple_threads_multiple_context(self): + # each thread should have it's own Context + ctxm = DefaultContextManager() + + def _fill_ctx(): + ctx = ctxm.get() + span = Span(tracer=None, name='fake_span') + ctx.add_span(span) + assert 1 == len(ctx._trace) + + threads = [threading.Thread(target=_fill_ctx) for _ in range(100)] + + for t in threads: + t.daemon = True + t.start() + + for t in threads: + t.join() + + # the main instance should have an empty Context + # because it has not been used in this thread + ctx = ctxm.get() + assert 0 == len(ctx._trace) + + def test_reset_context_manager(self): + ctxm = DefaultContextManager() + ctx = ctxm.get() + + # new context manager should not share same context + ctxm = DefaultContextManager() + assert ctxm.get() is not ctx diff --git a/tests/internal/test_hostname.py b/tests/internal/test_hostname.py new file mode 100644 index 0000000000..6ef048e1f4 --- /dev/null +++ b/tests/internal/test_hostname.py @@ -0,0 +1,14 @@ +import mock + +from ddtrace.internal.hostname import get_hostname + + +@mock.patch('socket.gethostname') +def test_get_hostname(socket_gethostname): + # Test that `get_hostname()` just returns `socket.gethostname` + socket_gethostname.return_value = 'test-hostname' + assert get_hostname() == 'test-hostname' + + # Change the value returned by `socket.gethostname` to test the cache + socket_gethostname.return_value = 'new-hostname' + assert get_hostname() == 'test-hostname' diff --git a/tests/internal/test_logger.py b/tests/internal/test_logger.py new file mode 100644 index 0000000000..206b7bb76d --- /dev/null +++ b/tests/internal/test_logger.py @@ -0,0 +1,335 @@ +import logging +import mock + +from ddtrace.internal.logger import DDLogger, get_logger + +from ..base import BaseTestCase + +ALL_LEVEL_NAMES = ('debug', 'info', 'warn', 'warning', 'error', 'exception', 'critical', 'fatal') + + +class DDLoggerTestCase(BaseTestCase): + def setUp(self): + super(DDLoggerTestCase, self).setUp() + + self.root = logging.root + self.manager = self.root.manager + + def tearDown(self): + # Weeee, forget all existing loggers + logging.Logger.manager.loggerDict.clear() + self.assertEqual(logging.Logger.manager.loggerDict, dict()) + + self.root = None + self.manager = None + + super(DDLoggerTestCase, self).tearDown() + + def _make_record( + self, logger, msg='test', args=(), level=logging.INFO, + fn='module.py', lno=5, exc_info=(None, None, None), func=None, extra=None + ): + return logger.makeRecord(logger.name, level, fn, lno, msg, args, exc_info, func, extra) + + @mock.patch('ddtrace.internal.logger.DDLogger.handle') + def assert_log_records(self, log, expected_levels, handle): + for name in ALL_LEVEL_NAMES: + method = getattr(log, name) + method('test') + + records = [args[0][0] for args in handle.call_args_list] + for record in records: + self.assertIsInstance(record, logging.LogRecord) + self.assertEqual(record.name, 'test.logger') + self.assertEqual(record.msg, 'test') + + levels = [r.levelname for r in records] + self.assertEqual(levels, expected_levels) + + def test_get_logger(self): + """ + When using `get_logger` to get a logger + When the logger does not exist + We create a new DDLogger + When the logger exists + We return the expected logger + When a different logger is requested + We return a new DDLogger + """ + # Assert the logger doesn't already exist + self.assertNotIn('test.logger', self.manager.loggerDict) + + # Fetch a new logger + log = get_logger('test.logger') + self.assertEqual(log.name, 'test.logger') + self.assertEqual(log.level, logging.NOTSET) + + # Ensure it is a DDLogger + self.assertIsInstance(log, DDLogger) + # Make sure it is stored in all the places we expect + self.assertEqual(self.manager.getLogger('test.logger'), log) + self.assertEqual(self.manager.loggerDict['test.logger'], log) + + # Fetch the same logger + same_log = get_logger('test.logger') + # Assert we got the same logger + self.assertEqual(log, same_log) + + # Fetch a different logger + new_log = get_logger('new.test.logger') + # Make sure we didn't get the same one + self.assertNotEqual(log, new_log) + + def test_get_logger_parents(self): + """ + When using `get_logger` to get a logger + We appropriately assign parent loggers + + DEV: This test case is to ensure we are calling `manager._fixupParents(logger)` + """ + # Fetch a new logger + test_log = get_logger('test') + self.assertEqual(test_log.parent, self.root) + + # Fetch a new child log + # Auto-associate with parent `test` logger + child_log = get_logger('test.child') + self.assertEqual(child_log.parent, test_log) + + # Deep child + deep_log = get_logger('test.child.logger.from.test.case') + self.assertEqual(deep_log.parent, child_log) + + def test_logger_init(self): + """ + When creating a new DDLogger + Has the same interface as logging.Logger + Configures a defaultdict for buckets + Properly configures the rate limit + """ + # Create a logger + log = DDLogger('test.logger') + + # Ensure we set the name and use default log level + self.assertEqual(log.name, 'test.logger') + self.assertEqual(log.level, logging.NOTSET) + + # Assert DDLogger default properties + self.assertIsInstance(log.buckets, dict) + self.assertEqual(log.rate_limit, 60) + + # Assert manager and parent + # DEV: Parent is `None` because `manager._findParents()` doesn't get called + # unless we use `get_logger` (this is the same behavior as `logging.getLogger` and `Logger('name')`) + self.assertEqual(log.manager, self.manager) + self.assertIsNone(log.parent) + + # Override rate limit from environment variable + with self.override_env(dict(DD_LOGGING_RATE_LIMIT='10')): + log = DDLogger('test.logger') + self.assertEqual(log.rate_limit, 10) + + # Set specific log level + log = DDLogger('test.logger', level=logging.DEBUG) + self.assertEqual(log.level, logging.DEBUG) + + def test_logger_log(self): + """ + When calling `DDLogger` log methods + We call `DDLogger.handle` with the expected log record + """ + log = get_logger('test.logger') + + # -- NOTSET + # By default no level is set so we only get warn, error, and critical messages + self.assertEqual(log.level, logging.NOTSET) + # `log.warn`, `log.warning`, `log.error`, `log.exception`, `log.critical`, `log.fatal` + self.assert_log_records(log, ['WARNING', 'WARNING', 'ERROR', 'ERROR', 'CRITICAL', 'CRITICAL']) + + # -- CRITICAL + log.setLevel(logging.CRITICAL) + # `log.critical`, `log.fatal` + self.assert_log_records(log, ['CRITICAL', 'CRITICAL']) + + # -- ERROR + log.setLevel(logging.ERROR) + # `log.error`, `log.exception`, `log.critical`, `log.fatal` + self.assert_log_records(log, ['ERROR', 'ERROR', 'CRITICAL', 'CRITICAL']) + + # -- WARN + log.setLevel(logging.WARN) + # `log.warn`, `log.warning`, `log.error`, `log.exception`, `log.critical`, `log.fatal` + self.assert_log_records(log, ['WARNING', 'WARNING', 'ERROR', 'ERROR', 'CRITICAL', 'CRITICAL']) + + # -- INFO + log.setLevel(logging.INFO) + # `log.info`, `log.warn`, `log.warning`, `log.error`, `log.exception`, `log.critical`, `log.fatal` + self.assert_log_records(log, ['INFO', 'WARNING', 'WARNING', 'ERROR', 'ERROR', 'CRITICAL', 'CRITICAL']) + + # -- DEBUG + log.setLevel(logging.DEBUG) + # `log.debug`, `log.info`, `log.warn`, `log.warning`, `log.error`, `log.exception`, `log.critical`, `log.fatal` + self.assert_log_records(log, ['DEBUG', 'INFO', 'WARNING', 'WARNING', 'ERROR', 'ERROR', 'CRITICAL', 'CRITICAL']) + + @mock.patch('logging.Logger.handle') + def test_logger_handle_no_limit(self, base_handle): + """ + Calling `DDLogger.handle` + When no rate limit is set + Always calls the base `Logger.handle` + """ + # Configure an INFO logger with no rate limit + log = get_logger('test.logger') + log.setLevel(logging.INFO) + log.rate_limit = 0 + + # Log a bunch of times very quickly (this is fast) + for _ in range(1000): + log.info('test') + + # Assert that we did not perform any rate limiting + self.assertEqual(base_handle.call_count, 1000) + + # Our buckets are empty + self.assertEqual(log.buckets, dict()) + + @mock.patch('logging.Logger.handle') + def test_logger_handle_bucket(self, base_handle): + """ + When calling `DDLogger.handle` + With a record + We pass it to the base `Logger.handle` + We create a bucket for tracking + """ + log = get_logger('test.logger') + + # Create log record and handle it + record = self._make_record(log) + log.handle(record) + + # We passed to base Logger.handle + base_handle.assert_called_once_with(record) + + # We added an bucket entry for this record + key = (record.name, record.levelno, record.pathname, record.lineno) + logging_bucket = log.buckets.get(key) + self.assertIsInstance(logging_bucket, DDLogger.LoggingBucket) + + # The bucket entry is correct + expected_bucket = int(record.created / log.rate_limit) + self.assertEqual(logging_bucket.bucket, expected_bucket) + self.assertEqual(logging_bucket.skipped, 0) + + @mock.patch('logging.Logger.handle') + def test_logger_handle_bucket_limited(self, base_handle): + """ + When calling `DDLogger.handle` + With multiple records in a single time frame + We pass only the first to the base `Logger.handle` + We keep track of the number skipped + """ + log = get_logger('test.logger') + + # Create log record and handle it + first_record = self._make_record(log, msg='first') + log.handle(first_record) + + for _ in range(100): + record = self._make_record(log) + # DEV: Use the same timestamp as `first_record` to ensure we are in the same bucket + record.created = first_record.created + log.handle(record) + + # We passed to base Logger.handle + base_handle.assert_called_once_with(first_record) + + # We added an bucket entry for these records + key = (record.name, record.levelno, record.pathname, record.lineno) + logging_bucket = log.buckets.get(key) + + # The bucket entry is correct + expected_bucket = int(first_record.created / log.rate_limit) + self.assertEqual(logging_bucket.bucket, expected_bucket) + self.assertEqual(logging_bucket.skipped, 100) + + @mock.patch('logging.Logger.handle') + def test_logger_handle_bucket_skipped_msg(self, base_handle): + """ + When calling `DDLogger.handle` + When a bucket exists for a previous time frame + We pass only the record to the base `Logger.handle` + We update the record message to include the number of skipped messages + """ + log = get_logger('test.logger') + + # Create log record to handle + original_msg = 'hello %s' + original_args = (1, ) + record = self._make_record(log, msg=original_msg, args=(1, )) + + # Create a bucket entry for this record + key = (record.name, record.levelno, record.pathname, record.lineno) + bucket = int(record.created / log.rate_limit) + # We want the time bucket to be for an older bucket + log.buckets[key] = DDLogger.LoggingBucket(bucket=bucket - 1, skipped=20) + + # Handle our record + log.handle(record) + + # We passed to base Logger.handle + base_handle.assert_called_once_with(record) + + self.assertEqual(record.msg, original_msg + ', %s additional messages skipped') + self.assertEqual(record.args, original_args + (20, )) + self.assertEqual(record.getMessage(), 'hello 1, 20 additional messages skipped') + + def test_logger_handle_bucket_key(self): + """ + When calling `DDLogger.handle` + With different log messages + We use different buckets to limit them + """ + log = get_logger('test.logger') + + # DEV: This function is inlined in `logger.py` + def get_key(record): + return (record.name, record.levelno, record.pathname, record.lineno) + + # Same record signature but different message + # DEV: These count against the same bucket + record1 = self._make_record(log, msg='record 1') + record2 = self._make_record(log, msg='record 2') + + # Different line number (default is `10`) + record3 = self._make_record(log, lno=10) + + # Different pathnames (default is `module.py`) + record4 = self._make_record(log, fn='log.py') + + # Different level (default is `logging.INFO`) + record5 = self._make_record(log, level=logging.WARN) + + # Different logger name + record6 = self._make_record(log) + record6.name = 'test.logger2' + + # Log all of our records + all_records = (record1, record2, record3, record4, record5, record6) + [log.handle(record) for record in all_records] + + buckets = log.buckets + # We have 6 records but only end up with 5 buckets + self.assertEqual(len(buckets), 5) + + # Assert bucket created for the record1 and record2 + bucket1 = buckets[get_key(record1)] + self.assertEqual(bucket1.skipped, 1) + + bucket2 = buckets[get_key(record2)] + self.assertEqual(bucket1, bucket2) + + # Assert bucket for the remaining records + # None of these other messages should have been grouped together + for record in (record3, record4, record5, record6): + bucket = buckets[get_key(record)] + self.assertEqual(bucket.skipped, 0) diff --git a/tests/internal/test_rate_limiter.py b/tests/internal/test_rate_limiter.py new file mode 100644 index 0000000000..3479025bd0 --- /dev/null +++ b/tests/internal/test_rate_limiter.py @@ -0,0 +1,191 @@ +from __future__ import division +import mock + +import pytest + +from ddtrace.internal.rate_limiter import RateLimiter +from ddtrace.vendor import monotonic + + +def test_rate_limiter_init(): + limiter = RateLimiter(rate_limit=100) + assert limiter.rate_limit == 100 + assert limiter.tokens == 100 + assert limiter.max_tokens == 100 + assert limiter.last_update <= monotonic.monotonic() + + +def test_rate_limiter_rate_limit_0(): + limiter = RateLimiter(rate_limit=0) + assert limiter.rate_limit == 0 + assert limiter.tokens == 0 + assert limiter.max_tokens == 0 + + now = monotonic.monotonic() + with mock.patch('ddtrace.vendor.monotonic.monotonic') as mock_time: + for i in range(10000): + # Make sure the time is different for every check + mock_time.return_value = now + i + assert limiter.is_allowed() is False + + +def test_rate_limiter_rate_limit_negative(): + limiter = RateLimiter(rate_limit=-1) + assert limiter.rate_limit == -1 + assert limiter.tokens == -1 + assert limiter.max_tokens == -1 + + now = monotonic.monotonic() + with mock.patch('ddtrace.vendor.monotonic.monotonic') as mock_time: + for i in range(10000): + # Make sure the time is different for every check + mock_time.return_value = now + i + assert limiter.is_allowed() is True + + +@pytest.mark.parametrize('rate_limit', [1, 10, 50, 100, 500, 1000]) +def test_rate_limiter_is_allowed(rate_limit): + limiter = RateLimiter(rate_limit=rate_limit) + + def check_limit(): + # Up to the allowed limit is allowed + for _ in range(rate_limit): + assert limiter.is_allowed() is True + + # Any over the limit is disallowed + for _ in range(1000): + assert limiter.is_allowed() is False + + # Start time + now = monotonic.monotonic() + + # Check the limit for 5 time frames + for i in range(5): + with mock.patch('ddtrace.vendor.monotonic.monotonic') as mock_time: + # Keep the same timeframe + mock_time.return_value = now + i + + check_limit() + + +def test_rate_limiter_is_allowed_large_gap(): + limiter = RateLimiter(rate_limit=100) + + # Start time + now = monotonic.monotonic() + with mock.patch('ddtrace.vendor.monotonic.monotonic') as mock_time: + # Keep the same timeframe + mock_time.return_value = now + + for _ in range(100): + assert limiter.is_allowed() is True + + # Large gap before next call to `is_allowed()` + with mock.patch('ddtrace.vendor.monotonic.monotonic') as mock_time: + mock_time.return_value = now + 100 + + for _ in range(100): + assert limiter.is_allowed() is True + + +def test_rate_limiter_is_allowed_small_gaps(): + limiter = RateLimiter(rate_limit=100) + + # Start time + now = monotonic.monotonic() + gap = 1.0 / 100.0 + # Keep incrementing by a gap to keep us at our rate limit + with mock.patch('ddtrace.vendor.monotonic.monotonic') as mock_time: + for i in range(10000): + # Keep the same timeframe + mock_time.return_value = now + (gap * i) + + assert limiter.is_allowed() is True + + +def test_rate_liimter_effective_rate_rates(): + limiter = RateLimiter(rate_limit=100) + + # Static rate limit window + starting_window = monotonic.monotonic() + with mock.patch('ddtrace.vendor.monotonic.monotonic') as mock_time: + mock_time.return_value = starting_window + + for _ in range(100): + assert limiter.is_allowed() is True + assert limiter.effective_rate == 1.0 + assert limiter.current_window == starting_window + + for i in range(1, 101): + assert limiter.is_allowed() is False + rate = 100 / (100 + i) + assert limiter.effective_rate == rate + assert limiter.current_window == starting_window + + prev_rate = 0.5 + with mock.patch('ddtrace.vendor.monotonic.monotonic') as mock_time: + window = starting_window + 1.0 + mock_time.return_value = window + + for i in range(100): + assert limiter.is_allowed() is True + assert limiter.effective_rate == 0.75 + assert limiter.current_window == window + + for i in range(1, 101): + assert limiter.is_allowed() is False + rate = 100 / (100 + i) + assert limiter.effective_rate == (rate + prev_rate) / 2 + assert limiter.current_window == window + + +def test_rate_liimter_effective_rate_starting_rate(): + limiter = RateLimiter(rate_limit=1) + + now = monotonic.monotonic() + with mock.patch('ddtrace.vendor.monotonic.monotonic') as mock_time: + mock_time.return_value = now + + # Default values + assert limiter.current_window == 0 + assert limiter.prev_window_rate is None + + # Accessing the effective rate doesn't change anything + assert limiter.effective_rate == 1.0 + assert limiter.current_window == 0 + assert limiter.prev_window_rate is None + + # Calling `.is_allowed()` updates the values + assert limiter.is_allowed() is True + assert limiter.effective_rate == 1.0 + assert limiter.current_window == now + assert limiter.prev_window_rate is None + + # Gap of 0.9999 seconds, same window + mock_time.return_value = now + 0.9999 + assert limiter.is_allowed() is False + # DEV: We have rate_limit=1 set + assert limiter.effective_rate == 0.5 + assert limiter.current_window == now + assert limiter.prev_window_rate is None + + # Gap of 1.0 seconds, new window + mock_time.return_value = now + 1.0 + assert limiter.is_allowed() is True + assert limiter.effective_rate == 0.75 + assert limiter.current_window == (now + 1.0) + assert limiter.prev_window_rate == 0.5 + + # Gap of 1.9999 seconds, same window + mock_time.return_value = now + 1.9999 + assert limiter.is_allowed() is False + assert limiter.effective_rate == 0.5 + assert limiter.current_window == (now + 1.0) # Same as old window + assert limiter.prev_window_rate == 0.5 + + # Large gap of 100 seconds, new window + mock_time.return_value = now + 100.0 + assert limiter.is_allowed() is True + assert limiter.effective_rate == 0.75 + assert limiter.current_window == (now + 100.0) + assert limiter.prev_window_rate == 0.5 diff --git a/tests/internal/test_writer.py b/tests/internal/test_writer.py new file mode 100644 index 0000000000..4ee0087dfc --- /dev/null +++ b/tests/internal/test_writer.py @@ -0,0 +1,219 @@ +import time + +import pytest + +import mock + +from ddtrace.span import Span +from ddtrace.api import API +from ddtrace.internal.writer import AgentWriter, Q, Empty +from ..base import BaseTestCase + + +class RemoveAllFilter: + def __init__(self): + self.filtered_traces = 0 + + def process_trace(self, trace): + self.filtered_traces += 1 + return None + + +class KeepAllFilter: + def __init__(self): + self.filtered_traces = 0 + + def process_trace(self, trace): + self.filtered_traces += 1 + return trace + + +class AddTagFilter: + def __init__(self, tag_name): + self.tag_name = tag_name + self.filtered_traces = 0 + + def process_trace(self, trace): + self.filtered_traces += 1 + for span in trace: + span.set_tag(self.tag_name, "A value") + return trace + + +class DummyAPI(API): + def __init__(self): + # Call API.__init__ to setup required properties + super(DummyAPI, self).__init__(hostname="localhost", port=8126) + + self.traces = [] + + def send_traces(self, traces): + responses = [] + for trace in traces: + self.traces.append(trace) + response = mock.Mock() + response.status = 200 + responses.append(response) + return responses + + +class FailingAPI(object): + @staticmethod + def send_traces(traces): + return [Exception("oops")] + + +class AgentWriterTests(BaseTestCase): + N_TRACES = 11 + + def create_worker(self, filters=None, api_class=DummyAPI, enable_stats=False): + with self.override_global_config(dict(health_metrics_enabled=enable_stats)): + self.dogstatsd = mock.Mock() + worker = AgentWriter(dogstatsd=self.dogstatsd, filters=filters) + worker._STATS_EVERY_INTERVAL = 1 + self.api = api_class() + worker.api = self.api + for i in range(self.N_TRACES): + worker.write( + [Span(tracer=None, name="name", trace_id=i, span_id=j, parent_id=j - 1 or None) for j in range(7)] + ) + worker.stop() + worker.join() + return worker + + def test_send_stats(self): + dogstatsd = mock.Mock() + worker = AgentWriter(dogstatsd=dogstatsd) + assert worker._send_stats is False + with self.override_global_config(dict(health_metrics_enabled=True)): + assert worker._send_stats is True + + worker = AgentWriter(dogstatsd=None) + assert worker._send_stats is False + with self.override_global_config(dict(health_metrics_enabled=True)): + assert worker._send_stats is False + + def test_filters_keep_all(self): + filtr = KeepAllFilter() + self.create_worker([filtr]) + self.assertEqual(len(self.api.traces), self.N_TRACES) + self.assertEqual(filtr.filtered_traces, self.N_TRACES) + + def test_filters_remove_all(self): + filtr = RemoveAllFilter() + self.create_worker([filtr]) + self.assertEqual(len(self.api.traces), 0) + self.assertEqual(filtr.filtered_traces, self.N_TRACES) + + def test_filters_add_tag(self): + tag_name = "Tag" + filtr = AddTagFilter(tag_name) + self.create_worker([filtr]) + self.assertEqual(len(self.api.traces), self.N_TRACES) + self.assertEqual(filtr.filtered_traces, self.N_TRACES) + for trace in self.api.traces: + for span in trace: + self.assertIsNotNone(span.get_tag(tag_name)) + + def test_filters_short_circuit(self): + filtr = KeepAllFilter() + filters = [RemoveAllFilter(), filtr] + self.create_worker(filters) + self.assertEqual(len(self.api.traces), 0) + self.assertEqual(filtr.filtered_traces, 0) + + def test_no_dogstats(self): + worker = self.create_worker() + assert worker._send_stats is False + assert [] == self.dogstatsd.gauge.mock_calls + + def test_dogstatsd(self): + self.create_worker(enable_stats=True) + assert [ + mock.call("datadog.tracer.heartbeat", 1), + mock.call("datadog.tracer.queue.max_length", 1000), + ] == self.dogstatsd.gauge.mock_calls + + assert [ + mock.call("datadog.tracer.flushes"), + mock.call("datadog.tracer.flush.traces.total", 11, tags=None), + mock.call("datadog.tracer.flush.spans.total", 77, tags=None), + mock.call("datadog.tracer.flush.traces_filtered.total", 0, tags=None), + mock.call("datadog.tracer.api.requests.total", 11, tags=None), + mock.call("datadog.tracer.api.errors.total", 0, tags=None), + mock.call("datadog.tracer.api.responses.total", 11, tags=["status:200"]), + mock.call("datadog.tracer.queue.dropped.traces", 0), + mock.call("datadog.tracer.queue.enqueued.traces", 11), + mock.call("datadog.tracer.queue.enqueued.spans", 77), + mock.call("datadog.tracer.shutdown"), + ] == self.dogstatsd.increment.mock_calls + + histogram_calls = [ + mock.call("datadog.tracer.flush.traces", 11, tags=None), + mock.call("datadog.tracer.flush.spans", 77, tags=None), + mock.call("datadog.tracer.flush.traces_filtered", 0, tags=None), + mock.call("datadog.tracer.api.requests", 11, tags=None), + mock.call("datadog.tracer.api.errors", 0, tags=None), + mock.call("datadog.tracer.api.responses", 11, tags=["status:200"]), + ] + if hasattr(time, "thread_time"): + histogram_calls.append(mock.call("datadog.tracer.writer.cpu_time", mock.ANY)) + + assert histogram_calls == self.dogstatsd.histogram.mock_calls + + def test_dogstatsd_failing_api(self): + self.create_worker(api_class=FailingAPI, enable_stats=True) + assert [ + mock.call("datadog.tracer.heartbeat", 1), + mock.call("datadog.tracer.queue.max_length", 1000), + ] == self.dogstatsd.gauge.mock_calls + + assert [ + mock.call("datadog.tracer.flushes"), + mock.call("datadog.tracer.flush.traces.total", 11, tags=None), + mock.call("datadog.tracer.flush.spans.total", 77, tags=None), + mock.call("datadog.tracer.flush.traces_filtered.total", 0, tags=None), + mock.call("datadog.tracer.api.requests.total", 1, tags=None), + mock.call("datadog.tracer.api.errors.total", 1, tags=None), + mock.call("datadog.tracer.queue.dropped.traces", 0), + mock.call("datadog.tracer.queue.enqueued.traces", 11), + mock.call("datadog.tracer.queue.enqueued.spans", 77), + mock.call("datadog.tracer.shutdown"), + ] == self.dogstatsd.increment.mock_calls + + histogram_calls = [ + mock.call("datadog.tracer.flush.traces", 11, tags=None), + mock.call("datadog.tracer.flush.spans", 77, tags=None), + mock.call("datadog.tracer.flush.traces_filtered", 0, tags=None), + mock.call("datadog.tracer.api.requests", 1, tags=None), + mock.call("datadog.tracer.api.errors", 1, tags=None), + ] + if hasattr(time, "thread_time"): + histogram_calls.append(mock.call("datadog.tracer.writer.cpu_time", mock.ANY)) + + assert histogram_calls == self.dogstatsd.histogram.mock_calls + + +def test_queue_full(): + q = Q(maxsize=3) + q.put([1]) + q.put(2) + q.put([3]) + q.put([4, 4]) + assert list(q.queue) == [[1], 2, [4, 4]] or list(q.queue) == [[1], [4, 4], [3]] or list(q.queue) == [[4, 4], 2, [3]] + assert q.dropped == 1 + assert q.accepted == 4 + assert q.accepted_lengths == 5 + dropped, accepted, accepted_lengths = q.reset_stats() + assert dropped == 1 + assert accepted == 4 + assert accepted_lengths == 5 + + +def test_queue_get(): + q = Q(maxsize=3) + q.put(1) + q.put(2) + assert list(q.get()) == [1, 2] + with pytest.raises(Empty): + q.get(block=False) diff --git a/tests/memory.py b/tests/memory.py new file mode 100644 index 0000000000..6ec70e3820 --- /dev/null +++ b/tests/memory.py @@ -0,0 +1,78 @@ +""" +a script which uses our integratiosn and prints memory statistics. +a very coarsely grained way of seeing how things are used. +""" + + +# stdlib +import itertools +import logging +import time +import sys + +# 3p +import pylibmc +import pympler.tracker +import psycopg2 +import redis + + +# project +import ddtrace +from tests.contrib import config + + +# verbosity +logging.basicConfig(stream=sys.stderr, level=logging.INFO) + +ddtrace.patch_all() +ddtrace.tracer.writer = None + + +class KitchenSink(object): + + def __init__(self): + self._redis = redis.Redis(**config.REDIS_CONFIG) + self._pg = psycopg2.connect(**config.POSTGRES_CONFIG) + + url = '%s:%s' % ( + config.MEMCACHED_CONFIG['host'], + config.MEMCACHED_CONFIG['port']) + self._pylibmc = pylibmc.Client([url]) + + def ping(self, i): + self._ping_redis(i) + self._ping_pg(i) + self._ping_pylibmc(i) + + def _ping_redis(self, i): + with self._redis.pipeline() as p: + p.get('a') + self._redis.set('a', 'b') + self._redis.get('a') + + def _ping_pg(self, i): + cur = self._pg.cursor() + try: + cur.execute("select 'asdf'") + cur.fetchall() + finally: + cur.close() + + def _ping_pylibmc(self, i): + self._pylibmc.set('a', 1) + self._pylibmc.incr('a', 2) + self._pylibmc.decr('a', 1) + + +if __name__ == '__main__': + k = KitchenSink() + t = pympler.tracker.SummaryTracker() + for i in itertools.count(): + # do the work + k.ping(i) + + # periodically print stats + if i % 500 == 0: + t.print_diff() + time.sleep(0.0001) diff --git a/tests/opentracer/__init__.py b/tests/opentracer/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/opentracer/conftest.py b/tests/opentracer/conftest.py new file mode 100644 index 0000000000..f264d17aa6 --- /dev/null +++ b/tests/opentracer/conftest.py @@ -0,0 +1,61 @@ +""" +pytest local plugin used to automatically make the following fixtures +available for all tests in this directory + +https://docs.pytest.org/en/latest/writing_plugins.html#testing-plugins +""" +import pytest + +from ddtrace.opentracer import Tracer, set_global_tracer + +from tests.test_tracer import get_dummy_tracer + + +@pytest.fixture() +def ot_tracer_factory(): + """Fixture which returns an opentracer ready to use for testing.""" + + def make_ot_tracer( + service_name='my_svc', config=None, scope_manager=None, context_provider=None + ): + config = config or {} + tracer = Tracer( + service_name=service_name, config=config, scope_manager=scope_manager + ) + + # similar to how we test the ddtracer, use a dummy tracer + dd_tracer = get_dummy_tracer() + if context_provider: + dd_tracer.configure(context_provider=context_provider) + + # attach the dummy tracer to the opentracer + tracer._dd_tracer = dd_tracer + return tracer + + return make_ot_tracer + + +@pytest.fixture() +def ot_tracer(ot_tracer_factory): + """Fixture for a default opentracer.""" + return ot_tracer_factory() + + +@pytest.fixture() +def global_tracer(ot_tracer): + """A function similar to one OpenTracing users would write to initialize + their OpenTracing tracer. + """ + set_global_tracer(ot_tracer) + + return ot_tracer + + +@pytest.fixture() +def writer(ot_tracer): + return ot_tracer._dd_tracer.writer + + +@pytest.fixture() +def dd_tracer(ot_tracer): + return ot_tracer._dd_tracer diff --git a/tests/opentracer/test_dd_compatibility.py b/tests/opentracer/test_dd_compatibility.py new file mode 100644 index 0000000000..2bb4c090a3 --- /dev/null +++ b/tests/opentracer/test_dd_compatibility.py @@ -0,0 +1,188 @@ +import ddtrace +import opentracing +from opentracing import Format + +from ddtrace.opentracer.span_context import SpanContext + + +class TestTracerCompatibility(object): + """Ensure that our opentracer produces results in the underlying ddtracer.""" + + def test_ottracer_uses_global_ddtracer(self): + """Ensure that the opentracer will by default use the global ddtracer + as its underlying Datadog tracer. + """ + tracer = ddtrace.opentracer.Tracer() + assert tracer._dd_tracer is ddtrace.tracer + + def test_custom_ddtracer(self): + """A user should be able to specify their own Datadog tracer instance if + they wish. + """ + custom_dd_tracer = ddtrace.Tracer() + tracer = ddtrace.opentracer.Tracer(dd_tracer=custom_dd_tracer) + assert tracer._dd_tracer is custom_dd_tracer + + def test_ot_dd_global_tracers(self, global_tracer): + """Ensure our test function opentracer_init() prep""" + ot_tracer = global_tracer + dd_tracer = global_tracer._dd_tracer + + # check all the global references + assert ot_tracer is opentracing.tracer + assert ot_tracer._dd_tracer is dd_tracer + assert dd_tracer is ddtrace.tracer + + def test_ot_dd_nested_trace(self, ot_tracer, dd_tracer, writer): + """Ensure intertwined usage of the opentracer and ddtracer.""" + + with ot_tracer.start_span('my_ot_span') as ot_span: + with dd_tracer.trace('my_dd_span') as dd_span: + pass + spans = writer.pop() + assert len(spans) == 2 + + # confirm the ordering + assert spans[0] is ot_span._dd_span + assert spans[1] is dd_span + + # check the parenting + assert spans[0].parent_id is None + assert spans[1].parent_id == spans[0].span_id + + def test_dd_ot_nested_trace(self, ot_tracer, dd_tracer, writer): + """Ensure intertwined usage of the opentracer and ddtracer.""" + with dd_tracer.trace('my_dd_span') as dd_span: + with ot_tracer.start_span('my_ot_span') as ot_span: + pass + spans = writer.pop() + assert len(spans) == 2 + + # confirm the ordering + assert spans[0] is dd_span + assert spans[1] is ot_span._dd_span + + # check the parenting + assert spans[0].parent_id is None + assert spans[1].parent_id is spans[0].span_id + + def test_ot_dd_ot_dd_nested_trace(self, ot_tracer, dd_tracer, writer): + """Ensure intertwined usage of the opentracer and ddtracer.""" + with ot_tracer.start_span('my_ot_span') as ot_span: + with dd_tracer.trace('my_dd_span') as dd_span: + with ot_tracer.start_span('my_ot_span') as ot_span2: + with dd_tracer.trace('my_dd_span') as dd_span2: + pass + + spans = writer.pop() + assert len(spans) == 4 + + # confirm the ordering + assert spans[0] is ot_span._dd_span + assert spans[1] is dd_span + assert spans[2] is ot_span2._dd_span + assert spans[3] is dd_span2 + + # check the parenting + assert spans[0].parent_id is None + assert spans[1].parent_id is spans[0].span_id + assert spans[2].parent_id is spans[1].span_id + assert spans[3].parent_id is spans[2].span_id + + def test_ot_ot_dd_ot_dd_nested_trace_active(self, ot_tracer, dd_tracer, writer): + """Ensure intertwined usage of the opentracer and ddtracer.""" + with ot_tracer.start_active_span('my_ot_span') as ot_scope: + with ot_tracer.start_active_span('my_ot_span') as ot_scope2: + with dd_tracer.trace('my_dd_span') as dd_span: + with ot_tracer.start_active_span('my_ot_span') as ot_scope3: + with dd_tracer.trace('my_dd_span') as dd_span2: + pass + + spans = writer.pop() + assert len(spans) == 5 + + # confirm the ordering + assert spans[0] is ot_scope.span._dd_span + assert spans[1] is ot_scope2.span._dd_span + assert spans[2] is dd_span + assert spans[3] is ot_scope3.span._dd_span + assert spans[4] is dd_span2 + + # check the parenting + assert spans[0].parent_id is None + assert spans[1].parent_id == spans[0].span_id + assert spans[2].parent_id == spans[1].span_id + assert spans[3].parent_id == spans[2].span_id + assert spans[4].parent_id == spans[3].span_id + + def test_consecutive_trace(self, ot_tracer, dd_tracer, writer): + """Ensure consecutive usage of the opentracer and ddtracer.""" + with ot_tracer.start_active_span('my_ot_span') as ot_scope: + pass + + with dd_tracer.trace('my_dd_span') as dd_span: + pass + + with ot_tracer.start_active_span('my_ot_span') as ot_scope2: + pass + + with dd_tracer.trace('my_dd_span') as dd_span2: + pass + + spans = writer.pop() + assert len(spans) == 4 + + # confirm the ordering + assert spans[0] is ot_scope.span._dd_span + assert spans[1] is dd_span + assert spans[2] is ot_scope2.span._dd_span + assert spans[3] is dd_span2 + + # check the parenting + assert spans[0].parent_id is None + assert spans[1].parent_id is None + assert spans[2].parent_id is None + assert spans[3].parent_id is None + + def test_ddtrace_wrapped_fn(self, ot_tracer, dd_tracer, writer): + """Ensure ddtrace wrapped functions work with the opentracer""" + + @dd_tracer.wrap() + def fn(): + with ot_tracer.start_span('ot_span_inner'): + pass + + with ot_tracer.start_active_span('ot_span_outer'): + fn() + + spans = writer.pop() + assert len(spans) == 3 + + # confirm the ordering + assert spans[0].name == 'ot_span_outer' + assert spans[1].name == 'tests.opentracer.test_dd_compatibility.fn' + assert spans[2].name == 'ot_span_inner' + + # check the parenting + assert spans[0].parent_id is None + assert spans[1].parent_id is spans[0].span_id + assert spans[2].parent_id is spans[1].span_id + + def test_distributed_trace_propagation(self, ot_tracer, dd_tracer, writer): + """Ensure that a propagated span context is properly activated.""" + span_ctx = SpanContext(trace_id=123, span_id=456) + carrier = {} + ot_tracer.inject(span_ctx, Format.HTTP_HEADERS, carrier) + + # extract should activate the span so that a subsequent start_span + # will inherit from the propagated span context + ot_tracer.extract(Format.HTTP_HEADERS, carrier) + + with dd_tracer.trace('test') as span: + pass + + assert span.parent_id == 456 + assert span.trace_id == 123 + + spans = writer.pop() + assert len(spans) == 1 diff --git a/tests/opentracer/test_span.py b/tests/opentracer/test_span.py new file mode 100644 index 0000000000..4428213067 --- /dev/null +++ b/tests/opentracer/test_span.py @@ -0,0 +1,153 @@ +import pytest +from ddtrace.opentracer.span import Span +from ..test_tracer import get_dummy_tracer + + +@pytest.fixture +def nop_tracer(): + from ddtrace.opentracer import Tracer + tracer = Tracer(service_name='mysvc', config={}) + # use the same test tracer used by the primary tests + tracer._tracer = get_dummy_tracer() + return tracer + + +@pytest.fixture +def nop_span_ctx(): + from ddtrace.ext.priority import AUTO_KEEP + from ddtrace.opentracer.span_context import SpanContext + return SpanContext(sampling_priority=AUTO_KEEP) + + +@pytest.fixture +def nop_span(nop_tracer, nop_span_ctx): + return Span(nop_tracer, nop_span_ctx, 'my_op_name') + + +class TestSpan(object): + """Test the Datadog OpenTracing Span implementation.""" + + def test_init(self, nop_tracer, nop_span_ctx): + """Very basic test for skeleton code""" + span = Span(nop_tracer, nop_span_ctx, 'my_op_name') + assert not span.finished + + def test_tags(self, nop_span): + """Set a tag and get it back.""" + nop_span.set_tag('test', 23) + assert nop_span._get_metric('test') == 23 + + def test_set_baggage(self, nop_span): + """Test setting baggage.""" + r = nop_span.set_baggage_item('test', 23) + assert r is nop_span + + r = nop_span.set_baggage_item('1', 1).set_baggage_item('2', 2) + assert r is nop_span + + def test_get_baggage(self, nop_span): + """Test setting and getting baggage.""" + # test a single item + nop_span.set_baggage_item('test', 23) + assert int(nop_span.get_baggage_item('test')) == 23 + + # test multiple items + nop_span.set_baggage_item('1', '1').set_baggage_item('2', 2) + assert int(nop_span.get_baggage_item('test')) == 23 + assert nop_span.get_baggage_item('1') == '1' + assert int(nop_span.get_baggage_item('2')) == 2 + + def test_log_kv(self, nop_span): + """Ensure logging values doesn't break anything.""" + # just log a bunch of values + nop_span.log_kv({'myval': 2}) + nop_span.log_kv({'myval2': 3}) + nop_span.log_kv({'myval3': 5}) + nop_span.log_kv({'myval': 2}) + + def test_log_dd_kv(self, nop_span): + """Ensure keys that can be handled by our impl. are indeed handled. """ + import traceback + from ddtrace.ext import errors + + stack_trace = str(traceback.format_stack()) + nop_span.log_kv({ + 'event': 'error', + 'error': 3, + 'message': 'my error message', + 'stack': stack_trace, + }) + + # Ensure error flag is set... + assert nop_span._dd_span.error + # ...and that error tags are set with the correct key + assert nop_span._get_tag(errors.ERROR_STACK) == stack_trace + assert nop_span._get_tag(errors.ERROR_MSG) == 'my error message' + assert nop_span._get_metric(errors.ERROR_TYPE) == 3 + + def test_operation_name(self, nop_span): + """Sanity check for setting the operation name.""" + # just try setting the operation name + nop_span.set_operation_name('new_op_name') + assert nop_span._dd_span.name == 'new_op_name' + + def test_context_manager(self, nop_span): + """Test the span context manager.""" + import time + + assert not nop_span.finished + # run the context manager but since the span has not been added + # to the span context, we will not get any traces + with nop_span: + time.sleep(0.005) + + # span should be finished when the context manager exits + assert nop_span.finished + + # there should be no traces (see above comment) + spans = nop_span.tracer._tracer.writer.pop() + assert len(spans) == 0 + + def test_immutable_span_context(self, nop_span): + """Ensure span contexts are immutable.""" + before_ctx = nop_span._context + nop_span.set_baggage_item('key', 'value') + after_ctx = nop_span._context + # should be different contexts + assert before_ctx is not after_ctx + + +class TestSpanCompatibility(object): + """Ensure our opentracer spans features correspond to datadog span features. + """ + def test_set_tag(self, nop_span): + nop_span.set_tag('test', 2) + assert nop_span._get_metric('test') == 2 + + def test_tag_resource_name(self, nop_span): + nop_span.set_tag('resource.name', 'myresource') + assert nop_span._dd_span.resource == 'myresource' + + def test_tag_span_type(self, nop_span): + nop_span.set_tag('span.type', 'db') + assert nop_span._dd_span.span_type == 'db' + + def test_tag_service_name(self, nop_span): + nop_span.set_tag('service.name', 'mysvc234') + assert nop_span._dd_span.service == 'mysvc234' + + def test_tag_db_statement(self, nop_span): + nop_span.set_tag('db.statement', 'SELECT * FROM USERS') + assert nop_span._dd_span.resource == 'SELECT * FROM USERS' + + def test_tag_peer_hostname(self, nop_span): + nop_span.set_tag('peer.hostname', 'peername') + assert nop_span._dd_span.get_tag('out.host') == 'peername' + + def test_tag_peer_port(self, nop_span): + nop_span.set_tag('peer.port', 55555) + assert nop_span._get_metric('out.port') == 55555 + + def test_tag_sampling_priority(self, nop_span): + nop_span.set_tag('sampling.priority', '2') + assert nop_span._dd_span.context._sampling_priority == '2' diff --git a/tests/opentracer/test_span_context.py b/tests/opentracer/test_span_context.py new file mode 100644 index 0000000000..a8d1b2f539 --- /dev/null +++ b/tests/opentracer/test_span_context.py @@ -0,0 +1,39 @@ +from ddtrace.opentracer.span_context import SpanContext + + +class TestSpanContext(object): + + def test_init(self): + """Make sure span context creation is fine.""" + span_ctx = SpanContext() + assert span_ctx + + def test_baggage(self): + """Ensure baggage passed is the resulting baggage of the span context.""" + baggage = { + 'some': 'stuff', + } + + span_ctx = SpanContext(baggage=baggage) + + assert span_ctx.baggage == baggage + + def test_with_baggage_item(self): + """Should allow immutable extension of new span contexts.""" + baggage = { + '1': 1, + } + + first_ctx = SpanContext(baggage=baggage) + + second_ctx = first_ctx.with_baggage_item('2', 2) + + assert '2' not in first_ctx.baggage + assert second_ctx.baggage is not first_ctx.baggage + + def test_span_context_immutable_baggage(self): + """Ensure that two different span contexts do not share baggage.""" + ctx1 = SpanContext() + ctx1.set_baggage_item('test', 3) + ctx2 = SpanContext() + assert 'test' not in ctx2._baggage diff --git a/tests/opentracer/test_tracer.py b/tests/opentracer/test_tracer.py new file mode 100644 index 0000000000..7888e5973f --- /dev/null +++ b/tests/opentracer/test_tracer.py @@ -0,0 +1,568 @@ +import time + +import opentracing +from opentracing import ( + child_of, + Format, + InvalidCarrierException, + UnsupportedFormatException, + SpanContextCorruptedException, +) + +import ddtrace +from ddtrace.ext.priority import AUTO_KEEP +from ddtrace.opentracer import Tracer, set_global_tracer +from ddtrace.opentracer.span_context import SpanContext +from ddtrace.propagation.http import HTTP_HEADER_TRACE_ID +from ddtrace.settings import ConfigException + +import mock +import pytest + + +class TestTracerConfig(object): + def test_config(self): + """Test the configuration of the tracer""" + config = {"enabled": True} + tracer = Tracer(service_name="myservice", config=config) + + assert tracer._service_name == "myservice" + assert tracer._enabled is True + + def test_no_service_name(self): + """A service_name should be generated if one is not provided.""" + tracer = Tracer() + assert tracer._service_name == "pytest" + + def test_multiple_tracer_configs(self): + """Ensure that a tracer config is a copy of the passed config.""" + config = {"enabled": True} + + tracer1 = Tracer(service_name="serv1", config=config) + assert tracer1._service_name == "serv1" + + config["enabled"] = False + tracer2 = Tracer(service_name="serv2", config=config) + + # Ensure tracer1's config was not mutated + assert tracer1._service_name == "serv1" + assert tracer1._enabled is True + + assert tracer2._service_name == "serv2" + assert tracer2._enabled is False + + def test_invalid_config_key(self): + """A config with an invalid key should raise a ConfigException.""" + + config = {"enabeld": False} + + # No debug flag should not raise an error + tracer = Tracer(service_name="mysvc", config=config) + + # With debug flag should raise an error + config["debug"] = True + with pytest.raises(ConfigException) as ce_info: + tracer = Tracer(config=config) + assert "enabeld" in str(ce_info) + assert tracer is not None + + # Test with multiple incorrect keys + config["setttings"] = {} + with pytest.raises(ConfigException) as ce_info: + tracer = Tracer(service_name="mysvc", config=config) + assert ["enabeld", "setttings"] in str(ce_info) + assert tracer is not None + + def test_global_tags(self): + """Global tags should be passed from the opentracer to the tracer.""" + config = { + "global_tags": {"tag1": "value1", "tag2": 2,}, + } + + tracer = Tracer(service_name="mysvc", config=config) + with tracer.start_span("myop") as span: + # global tags should be attached to generated all datadog spans + assert span._dd_span.get_tag("tag1") == "value1" + assert span._dd_span.get_metric("tag2") == 2 + + with tracer.start_span("myop2") as span2: + assert span2._dd_span.get_tag("tag1") == "value1" + assert span2._dd_span.get_metric("tag2") == 2 + + +class TestTracer(object): + def test_start_span(self, ot_tracer, writer): + """Start and finish a span.""" + with ot_tracer.start_span("myop") as span: + pass + + # span should be finished when the context manager exits + assert span.finished + + spans = writer.pop() + assert len(spans) == 1 + + def test_start_span_references(self, ot_tracer, writer): + """Start a span using references.""" + + with ot_tracer.start_span("one", references=[child_of()]): + pass + + spans = writer.pop() + assert spans[0].parent_id is None + + root = ot_tracer.start_active_span("root") + # create a child using a parent reference that is not the context parent + with ot_tracer.start_active_span("one"): + with ot_tracer.start_active_span("two", references=[child_of(root.span)]): + pass + root.close() + + spans = writer.pop() + assert spans[2].parent_id is spans[0].span_id + + def test_start_span_custom_start_time(self, ot_tracer): + """Start a span with a custom start time.""" + t = 100 + with mock.patch("ddtrace.span.time_ns") as time: + time.return_value = 102 * 1e9 + with ot_tracer.start_span("myop", start_time=t) as span: + pass + + assert span._dd_span.start == t + assert span._dd_span.duration == 2 + + def test_start_span_with_spancontext(self, ot_tracer, writer): + """Start and finish a span using a span context as the child_of + reference. + """ + with ot_tracer.start_span("myop") as span: + with ot_tracer.start_span("myop", child_of=span.context) as span2: + pass + + # span should be finished when the context manager exits + assert span.finished + assert span2.finished + + spans = writer.pop() + assert len(spans) == 2 + + # ensure proper parenting + assert spans[1].parent_id is spans[0].span_id + + def test_start_span_with_tags(self, ot_tracer): + """Create a span with initial tags.""" + tags = {"key": "value", "key2": "value2"} + with ot_tracer.start_span("myop", tags=tags) as span: + pass + + assert span._dd_span.get_tag("key") == "value" + assert span._dd_span.get_tag("key2") == "value2" + + def test_start_span_with_resource_name_tag(self, ot_tracer): + """Create a span with the tag to set the resource name""" + tags = {"resource.name": "value", "key2": "value2"} + with ot_tracer.start_span("myop", tags=tags) as span: + pass + + # Span resource name should be set to tag value, and should not get set as + # a tag on the underlying span. + assert span._dd_span.resource == "value" + assert span._dd_span.get_tag("resource.name") is None + + # Other tags are set as normal + assert span._dd_span.get_tag("key2") == "value2" + + def test_start_active_span_multi_child(self, ot_tracer, writer): + """Start and finish multiple child spans. + This should ensure that child spans can be created 2 levels deep. + """ + with ot_tracer.start_active_span("myfirstop") as scope1: + time.sleep(0.009) + with ot_tracer.start_active_span("mysecondop") as scope2: + time.sleep(0.007) + with ot_tracer.start_active_span("mythirdop") as scope3: + time.sleep(0.005) + + # spans should be finished when the context manager exits + assert scope1.span.finished + assert scope2.span.finished + assert scope3.span.finished + + spans = writer.pop() + + # check spans are captured in the trace + assert scope1.span._dd_span is spans[0] + assert scope2.span._dd_span is spans[1] + assert scope3.span._dd_span is spans[2] + + # ensure proper parenting + assert spans[1].parent_id is spans[0].span_id + assert spans[2].parent_id is spans[1].span_id + + # sanity check a lower bound on the durations + assert spans[0].duration >= 0.009 + 0.007 + 0.005 + assert spans[1].duration >= 0.007 + 0.005 + assert spans[2].duration >= 0.005 + + def test_start_active_span_multi_child_siblings(self, ot_tracer, writer): + """Start and finish multiple span at the same level. + This should test to ensure a parent can have multiple child spans at the + same level. + """ + with ot_tracer.start_active_span("myfirstop") as scope1: + time.sleep(0.009) + with ot_tracer.start_active_span("mysecondop") as scope2: + time.sleep(0.007) + with ot_tracer.start_active_span("mythirdop") as scope3: + time.sleep(0.005) + + # spans should be finished when the context manager exits + assert scope1.span.finished + assert scope2.span.finished + assert scope3.span.finished + + spans = writer.pop() + + # check spans are captured in the trace + assert scope1.span._dd_span is spans[0] + assert scope2.span._dd_span is spans[1] + assert scope3.span._dd_span is spans[2] + + # ensure proper parenting + assert spans[1].parent_id is spans[0].span_id + assert spans[2].parent_id is spans[0].span_id + + # sanity check a lower bound on the durations + assert spans[0].duration >= 0.009 + 0.007 + 0.005 + assert spans[1].duration >= 0.007 + assert spans[2].duration >= 0.005 + + def test_start_span_manual_child_of(self, ot_tracer, writer): + """Start spans without using a scope manager. + Spans should be created without parents since there will be no call + for the active span. + """ + root = ot_tracer.start_span("zero") + + with ot_tracer.start_span("one", child_of=root): + with ot_tracer.start_span("two", child_of=root): + with ot_tracer.start_span("three", child_of=root): + pass + root.finish() + + spans = writer.pop() + + assert spans[0].parent_id is None + # ensure each child span is a child of root + assert spans[1].parent_id is root._dd_span.span_id + assert spans[2].parent_id is root._dd_span.span_id + assert spans[3].parent_id is root._dd_span.span_id + assert spans[0].trace_id == spans[1].trace_id and spans[1].trace_id == spans[2].trace_id + + def test_start_span_no_active_span(self, ot_tracer, writer): + """Start spans without using a scope manager. + Spans should be created without parents since there will be no call + for the active span. + """ + with ot_tracer.start_span("one", ignore_active_span=True): + with ot_tracer.start_span("two", ignore_active_span=True): + pass + with ot_tracer.start_span("three", ignore_active_span=True): + pass + + spans = writer.pop() + + # ensure each span does not have a parent + assert spans[0].parent_id is None + assert spans[1].parent_id is None + assert spans[2].parent_id is None + # and that each span is a new trace + assert ( + spans[0].trace_id != spans[1].trace_id + and spans[1].trace_id != spans[2].trace_id + and spans[0].trace_id != spans[2].trace_id + ) + + def test_start_active_span_child_finish_after_parent(self, ot_tracer, writer): + """Start a child span and finish it after its parent.""" + span1 = ot_tracer.start_active_span("one").span + span2 = ot_tracer.start_active_span("two").span + span1.finish() + time.sleep(0.005) + span2.finish() + + spans = writer.pop() + assert len(spans) == 2 + assert spans[0].parent_id is None + assert spans[1].parent_id is span1._dd_span.span_id + assert spans[1].duration > spans[0].duration + + def test_start_span_multi_intertwined(self, ot_tracer, writer): + """Start multiple spans at the top level intertwined. + Alternate calling between two traces. + """ + import threading + + # synchronize threads with a threading event object + event = threading.Event() + + def trace_one(): + id = 11 # noqa: A001 + with ot_tracer.start_active_span(str(id)): + id += 1 + with ot_tracer.start_active_span(str(id)): + id += 1 + with ot_tracer.start_active_span(str(id)): + event.set() + + def trace_two(): + id = 21 # noqa: A001 + event.wait() + with ot_tracer.start_active_span(str(id)): + id += 1 + with ot_tracer.start_active_span(str(id)): + id += 1 + with ot_tracer.start_active_span(str(id)): + pass + + # the ordering should be + # t1.span1/t2.span1, t2.span2, t1.span2, t1.span3, t2.span3 + t1 = threading.Thread(target=trace_one) + t2 = threading.Thread(target=trace_two) + + t1.start() + t2.start() + # wait for threads to finish + t1.join() + t2.join() + + spans = writer.pop() + + # trace_one will finish before trace_two so its spans should be written + # before the spans from trace_two, let's confirm this + assert spans[0].name == "11" + assert spans[1].name == "12" + assert spans[2].name == "13" + assert spans[3].name == "21" + assert spans[4].name == "22" + assert spans[5].name == "23" + + # next let's ensure that each span has the correct parent: + # trace_one + assert spans[0].parent_id is None + assert spans[1].parent_id is spans[0].span_id + assert spans[2].parent_id is spans[1].span_id + # trace_two + assert spans[3].parent_id is None + assert spans[4].parent_id is spans[3].span_id + assert spans[5].parent_id is spans[3].span_id + + # finally we should ensure that the trace_ids are reasonable + # trace_one + assert spans[0].trace_id == spans[1].trace_id and spans[1].trace_id == spans[2].trace_id + # traces should be independent + assert spans[2].trace_id != spans[3].trace_id + # trace_two + assert spans[3].trace_id == spans[4].trace_id and spans[4].trace_id == spans[5].trace_id + + def test_start_active_span(self, ot_tracer, writer): + with ot_tracer.start_active_span("one") as scope: + pass + + assert scope.span._dd_span.name == "one" + assert scope.span.finished + spans = writer.pop() + assert spans + + def test_start_active_span_finish_on_close(self, ot_tracer, writer): + with ot_tracer.start_active_span("one", finish_on_close=False) as scope: + pass + + assert scope.span._dd_span.name == "one" + assert not scope.span.finished + spans = writer.pop() + assert not spans + + def test_start_active_span_nested(self, ot_tracer): + """Test the active span of multiple nested calls of start_active_span.""" + with ot_tracer.start_active_span("one") as outer_scope: + assert ot_tracer.active_span == outer_scope.span + with ot_tracer.start_active_span("two") as inner_scope: + assert ot_tracer.active_span == inner_scope.span + with ot_tracer.start_active_span("three") as innest_scope: # why isn't it innest? innermost so verbose + assert ot_tracer.active_span == innest_scope.span + with ot_tracer.start_active_span("two") as inner_scope: + assert ot_tracer.active_span == inner_scope.span + assert ot_tracer.active_span == outer_scope.span + assert ot_tracer.active_span is None + + def test_start_active_span_trace(self, ot_tracer, writer): + """Test the active span of multiple nested calls of start_active_span.""" + with ot_tracer.start_active_span("one") as outer_scope: + outer_scope.span.set_tag("outer", 2) + with ot_tracer.start_active_span("two") as inner_scope: + inner_scope.span.set_tag("inner", 3) + with ot_tracer.start_active_span("two") as inner_scope: + inner_scope.span.set_tag("inner", 3) + with ot_tracer.start_active_span("three") as innest_scope: + innest_scope.span.set_tag("innerest", 4) + + spans = writer.pop() + + assert spans[0].parent_id is None + assert spans[1].parent_id is spans[0].span_id + assert spans[2].parent_id is spans[0].span_id + assert spans[3].parent_id is spans[2].span_id + + +@pytest.fixture +def nop_span_ctx(): + + return SpanContext(sampling_priority=AUTO_KEEP) + + +class TestTracerSpanContextPropagation(object): + """Test the injection and extration of a span context from a tracer.""" + + def test_invalid_format(self, ot_tracer, nop_span_ctx): + """An invalid format should raise an UnsupportedFormatException.""" + # test inject + with pytest.raises(UnsupportedFormatException): + ot_tracer.inject(nop_span_ctx, None, {}) + + # test extract + with pytest.raises(UnsupportedFormatException): + ot_tracer.extract(None, {}) + + def test_inject_invalid_carrier(self, ot_tracer, nop_span_ctx): + """Only dicts should be supported as a carrier.""" + with pytest.raises(InvalidCarrierException): + ot_tracer.inject(nop_span_ctx, Format.HTTP_HEADERS, None) + + def test_extract_invalid_carrier(self, ot_tracer): + """Only dicts should be supported as a carrier.""" + with pytest.raises(InvalidCarrierException): + ot_tracer.extract(Format.HTTP_HEADERS, None) + + def test_http_headers_base(self, ot_tracer): + """extract should undo inject for http headers.""" + + span_ctx = SpanContext(trace_id=123, span_id=456) + carrier = {} + + ot_tracer.inject(span_ctx, Format.HTTP_HEADERS, carrier) + assert len(carrier.keys()) > 0 + + ext_span_ctx = ot_tracer.extract(Format.HTTP_HEADERS, carrier) + assert ext_span_ctx._dd_context.trace_id == 123 + assert ext_span_ctx._dd_context.span_id == 456 + + def test_http_headers_baggage(self, ot_tracer): + """extract should undo inject for http headers.""" + span_ctx = SpanContext(trace_id=123, span_id=456, baggage={"test": 4, "test2": "string"}) + carrier = {} + + ot_tracer.inject(span_ctx, Format.HTTP_HEADERS, carrier) + assert len(carrier.keys()) > 0 + + ext_span_ctx = ot_tracer.extract(Format.HTTP_HEADERS, carrier) + assert ext_span_ctx._dd_context.trace_id == 123 + assert ext_span_ctx._dd_context.span_id == 456 + assert ext_span_ctx.baggage == span_ctx.baggage + + def test_empty_propagated_context(self, ot_tracer): + """An empty propagated context should raise a + SpanContextCorruptedException when extracted. + """ + carrier = {} + with pytest.raises(SpanContextCorruptedException): + ot_tracer.extract(Format.HTTP_HEADERS, carrier) + + def test_text(self, ot_tracer): + """extract should undo inject for http headers""" + span_ctx = SpanContext(trace_id=123, span_id=456, baggage={"test": 4, "test2": "string"}) + carrier = {} + + ot_tracer.inject(span_ctx, Format.TEXT_MAP, carrier) + assert len(carrier.keys()) > 0 + + ext_span_ctx = ot_tracer.extract(Format.TEXT_MAP, carrier) + assert ext_span_ctx._dd_context.trace_id == 123 + assert ext_span_ctx._dd_context.span_id == 456 + assert ext_span_ctx.baggage == span_ctx.baggage + + def test_corrupted_propagated_context(self, ot_tracer): + """Corrupted context should raise a SpanContextCorruptedException.""" + span_ctx = SpanContext(trace_id=123, span_id=456, baggage={"test": 4, "test2": "string"}) + carrier = {} + + ot_tracer.inject(span_ctx, Format.TEXT_MAP, carrier) + assert len(carrier.keys()) > 0 + + # manually alter a key in the carrier baggage + del carrier[HTTP_HEADER_TRACE_ID] + corrupted_key = HTTP_HEADER_TRACE_ID[2:] + carrier[corrupted_key] = 123 + + with pytest.raises(SpanContextCorruptedException): + ot_tracer.extract(Format.TEXT_MAP, carrier) + + def test_immutable_span_context(self, ot_tracer): + """Span contexts should be immutable.""" + with ot_tracer.start_span("root") as root: + ctx_before = root.context + root.set_baggage_item("test", 2) + assert ctx_before is not root.context + with ot_tracer.start_span("child") as level1: + with ot_tracer.start_span("child") as level2: + pass + assert root.context is not level1.context + assert level2.context is not level1.context + assert level2.context is not root.context + + def test_inherited_baggage(self, ot_tracer): + """Baggage should be inherited by child spans.""" + with ot_tracer.start_active_span("root") as root: + # this should be passed down to the child + root.span.set_baggage_item("root", 1) + root.span.set_baggage_item("root2", 1) + with ot_tracer.start_active_span("child") as level1: + level1.span.set_baggage_item("level1", 1) + with ot_tracer.start_active_span("child") as level2: + level2.span.set_baggage_item("level2", 1) + # ensure immutability + assert level1.span.context is not root.span.context + assert level2.span.context is not level1.span.context + + # level1 should have inherited the baggage of root + assert level1.span.get_baggage_item("root") + assert level1.span.get_baggage_item("root2") + + # level2 should have inherited the baggage of both level1 and level2 + assert level2.span.get_baggage_item("root") + assert level2.span.get_baggage_item("root2") + assert level2.span.get_baggage_item("level1") + assert level2.span.get_baggage_item("level2") + + +class TestTracerCompatibility(object): + """Ensure that our opentracer produces results in the underlying datadog tracer.""" + + def test_required_dd_fields(self): + """Ensure required fields needed for successful tracing are possessed + by the underlying datadog tracer. + """ + # a service name is required + tracer = Tracer("service") + with tracer.start_span("my_span") as span: + assert span._dd_span.service + + +def test_set_global_tracer(): + """Sanity check for set_global_tracer""" + my_tracer = Tracer("service") + set_global_tracer(my_tracer) + + assert opentracing.tracer is my_tracer + assert ddtrace.tracer is my_tracer._dd_tracer diff --git a/tests/opentracer/test_tracer_asyncio.py b/tests/opentracer/test_tracer_asyncio.py new file mode 100644 index 0000000000..3e1e6c0e48 --- /dev/null +++ b/tests/opentracer/test_tracer_asyncio.py @@ -0,0 +1,192 @@ +import asyncio +import pytest +from opentracing.scope_managers.asyncio import AsyncioScopeManager + +import ddtrace +from ddtrace.opentracer.utils import get_context_provider_for_scope_manager + +from tests.contrib.asyncio.utils import AsyncioTestCase, mark_asyncio +from .conftest import ot_tracer_factory # noqa: F401 + + +@pytest.fixture() +def ot_tracer(request, ot_tracer_factory): # noqa: F811 + # use the dummy asyncio ot tracer + request.instance.ot_tracer = ot_tracer_factory( + 'asyncio_svc', + config={}, + scope_manager=AsyncioScopeManager(), + context_provider=ddtrace.contrib.asyncio.context_provider, + ) + request.instance.ot_writer = request.instance.ot_tracer._dd_tracer.writer + request.instance.dd_tracer = request.instance.ot_tracer._dd_tracer + + +@pytest.mark.usefixtures('ot_tracer') +class TestTracerAsyncio(AsyncioTestCase): + + def reset(self): + self.ot_writer.pop_traces() + + @mark_asyncio + def test_trace_coroutine(self): + # it should use the task context when invoked in a coroutine + with self.ot_tracer.start_span('coroutine'): + pass + + traces = self.ot_writer.pop_traces() + + assert len(traces) == 1 + assert len(traces[0]) == 1 + assert traces[0][0].name == 'coroutine' + + @mark_asyncio + def test_trace_multiple_coroutines(self): + # if multiple coroutines have nested tracing, they must belong + # to the same trace + @asyncio.coroutine + def coro(): + # another traced coroutine + with self.ot_tracer.start_active_span('coroutine_2'): + return 42 + + with self.ot_tracer.start_active_span('coroutine_1'): + value = yield from coro() + + # the coroutine has been called correctly + assert value == 42 + # a single trace has been properly reported + traces = self.ot_writer.pop_traces() + assert len(traces) == 1 + assert len(traces[0]) == 2 + assert traces[0][0].name == 'coroutine_1' + assert traces[0][1].name == 'coroutine_2' + # the parenting is correct + assert traces[0][0] == traces[0][1]._parent + assert traces[0][0].trace_id == traces[0][1].trace_id + + @mark_asyncio + def test_exception(self): + @asyncio.coroutine + def f1(): + with self.ot_tracer.start_span('f1'): + raise Exception('f1 error') + + with pytest.raises(Exception): + yield from f1() + + traces = self.ot_writer.pop_traces() + assert len(traces) == 1 + spans = traces[0] + assert len(spans) == 1 + span = spans[0] + assert span.error == 1 + assert span.get_tag('error.msg') == 'f1 error' + assert 'Exception: f1 error' in span.get_tag('error.stack') + + @mark_asyncio + def test_trace_multiple_calls(self): + # create multiple futures so that we expect multiple + # traces instead of a single one (helper not used) + @asyncio.coroutine + def coro(): + # another traced coroutine + with self.ot_tracer.start_span('coroutine'): + yield from asyncio.sleep(0.01) + + futures = [asyncio.ensure_future(coro()) for x in range(10)] + for future in futures: + yield from future + + traces = self.ot_writer.pop_traces() + + assert len(traces) == 10 + assert len(traces[0]) == 1 + assert traces[0][0].name == 'coroutine' + + +@pytest.mark.usefixtures('ot_tracer') +class TestTracerAsyncioCompatibility(AsyncioTestCase): + """Ensure the opentracer works in tandem with the ddtracer and asyncio.""" + + @mark_asyncio + def test_trace_multiple_coroutines_ot_dd(self): + """ + Ensure we can trace from opentracer to ddtracer across asyncio + context switches. + """ + # if multiple coroutines have nested tracing, they must belong + # to the same trace + @asyncio.coroutine + def coro(): + # another traced coroutine + with self.dd_tracer.trace('coroutine_2'): + return 42 + + with self.ot_tracer.start_active_span('coroutine_1'): + value = yield from coro() + + # the coroutine has been called correctly + assert value == 42 + # a single trace has been properly reported + traces = self.ot_tracer._dd_tracer.writer.pop_traces() + assert len(traces) == 1 + assert len(traces[0]) == 2 + assert traces[0][0].name == 'coroutine_1' + assert traces[0][1].name == 'coroutine_2' + # the parenting is correct + assert traces[0][0] == traces[0][1]._parent + assert traces[0][0].trace_id == traces[0][1].trace_id + + @mark_asyncio + def test_trace_multiple_coroutines_dd_ot(self): + """ + Ensure we can trace from ddtracer to opentracer across asyncio + context switches. + """ + # if multiple coroutines have nested tracing, they must belong + # to the same trace + @asyncio.coroutine + def coro(): + # another traced coroutine + with self.ot_tracer.start_span('coroutine_2'): + return 42 + + with self.dd_tracer.trace('coroutine_1'): + value = yield from coro() + + # the coroutine has been called correctly + assert value == 42 + # a single trace has been properly reported + traces = self.ot_tracer._dd_tracer.writer.pop_traces() + assert len(traces) == 1 + assert len(traces[0]) == 2 + assert traces[0][0].name == 'coroutine_1' + assert traces[0][1].name == 'coroutine_2' + # the parenting is correct + assert traces[0][0] == traces[0][1]._parent + assert traces[0][0].trace_id == traces[0][1].trace_id + + +@pytest.mark.skipif( + ddtrace.internal.context_manager.CONTEXTVARS_IS_AVAILABLE, + reason='only applicable to legacy asyncio provider' +) +class TestUtilsAsyncio(object): + """Test the util routines of the opentracer with asyncio specific + configuration. + """ + + def test_get_context_provider_for_scope_manager_asyncio(self): + scope_manager = AsyncioScopeManager() + ctx_prov = get_context_provider_for_scope_manager(scope_manager) + assert isinstance( + ctx_prov, ddtrace.contrib.asyncio.provider.AsyncioContextProvider + ) + + def test_tracer_context_provider_config(self): + tracer = ddtrace.opentracer.Tracer('mysvc', scope_manager=AsyncioScopeManager()) + assert isinstance( + tracer._dd_tracer.context_provider, + ddtrace.contrib.asyncio.provider.AsyncioContextProvider, + ) diff --git a/tests/opentracer/test_tracer_gevent.py b/tests/opentracer/test_tracer_gevent.py new file mode 100644 index 0000000000..65f0491e0f --- /dev/null +++ b/tests/opentracer/test_tracer_gevent.py @@ -0,0 +1,217 @@ +import gevent +import pytest +from opentracing.scope_managers.gevent import GeventScopeManager + +import ddtrace +from ddtrace.contrib.gevent import patch, unpatch +from ddtrace.opentracer.utils import get_context_provider_for_scope_manager + + +@pytest.fixture() +def ot_tracer(ot_tracer_factory): + """Fixture providing an opentracer configured for gevent usage.""" + # patch gevent + patch() + yield ot_tracer_factory( + 'gevent_svc', {}, GeventScopeManager(), ddtrace.contrib.gevent.context_provider + ) + # unpatch gevent + unpatch() + + +class TestTracerGevent(object): + """Converted Gevent tests for the regular tracer. + + Ensures that greenlets are properly traced when using + the opentracer. + """ + + def test_no_threading(self, ot_tracer): + with ot_tracer.start_span('span') as span: + span.set_tag('tag', 'value') + + assert span.finished + + def test_greenlets(self, ot_tracer, writer): + def f(): + with ot_tracer.start_span('f') as span: + gevent.sleep(0.04) + span.set_tag('f', 'yes') + + def g(): + with ot_tracer.start_span('g') as span: + gevent.sleep(0.03) + span.set_tag('g', 'yes') + + with ot_tracer.start_span('root'): + gevent.joinall([gevent.spawn(f), gevent.spawn(g)]) + + traces = writer.pop_traces() + assert len(traces) == 3 + + def test_trace_greenlet(self, ot_tracer, writer): + # a greenlet can be traced using the trace API + def greenlet(): + with ot_tracer.start_span('greenlet'): + pass + + gevent.spawn(greenlet).join() + traces = writer.pop_traces() + assert len(traces) == 1 + assert len(traces[0]) == 1 + assert traces[0][0].name == 'greenlet' + + def test_trace_later_greenlet(self, ot_tracer, writer): + # a greenlet can be traced using the trace API + def greenlet(): + with ot_tracer.start_span('greenlet'): + pass + + gevent.spawn_later(0.01, greenlet).join() + traces = writer.pop_traces() + + assert len(traces) == 1 + assert len(traces[0]) == 1 + assert traces[0][0].name == 'greenlet' + + def test_trace_concurrent_calls(self, ot_tracer, writer): + # create multiple futures so that we expect multiple + # traces instead of a single one + def greenlet(): + with ot_tracer.start_span('greenlet'): + gevent.sleep(0.01) + + jobs = [gevent.spawn(greenlet) for x in range(100)] + gevent.joinall(jobs) + + traces = writer.pop_traces() + + assert len(traces) == 100 + assert len(traces[0]) == 1 + assert traces[0][0].name == 'greenlet' + + def test_trace_concurrent_spawn_later_calls(self, ot_tracer, writer): + # create multiple futures so that we expect multiple + # traces instead of a single one, even if greenlets + # are delayed + def greenlet(): + with ot_tracer.start_span('greenlet'): + gevent.sleep(0.01) + + jobs = [gevent.spawn_later(0.01, greenlet) for x in range(100)] + gevent.joinall(jobs) + + traces = writer.pop_traces() + assert len(traces) == 100 + assert len(traces[0]) == 1 + assert traces[0][0].name == 'greenlet' + + +class TestTracerGeventCompatibility(object): + """Ensure the opentracer works in tandem with the ddtracer and gevent.""" + + def test_trace_spawn_multiple_greenlets_multiple_traces_ot_parent( + self, ot_tracer, dd_tracer, writer + ): + """ + Copy of gevent test with the same name but testing with mixed usage of + the opentracer and datadog tracers. + + Uses an opentracer span as the parent span. + """ + # multiple greenlets must be part of the same trace + def entrypoint(): + with ot_tracer.start_active_span('greenlet.main'): + jobs = [gevent.spawn(green_1), gevent.spawn(green_2)] + gevent.joinall(jobs) + + def green_1(): + with dd_tracer.trace('greenlet.worker') as span: + span.set_tag('worker_id', '1') + gevent.sleep(0.01) + + def green_2(): + with ot_tracer.start_span('greenlet.worker') as span: + span.set_tag('worker_id', '2') + gevent.sleep(0.01) + + gevent.spawn(entrypoint).join() + traces = writer.pop_traces() + assert len(traces) == 3 + assert len(traces[0]) == 1 + parent_span = traces[2][0] + worker_1 = traces[0][0] + worker_2 = traces[1][0] + # check spans data and hierarchy + assert parent_span.name == 'greenlet.main' + assert worker_1.get_tag('worker_id') == '1' + assert worker_1.name == 'greenlet.worker' + assert worker_1.resource == 'greenlet.worker' + assert worker_1.parent_id == parent_span.span_id + assert worker_2.get_tag('worker_id') == '2' + assert worker_2.name == 'greenlet.worker' + assert worker_2.resource == 'greenlet.worker' + assert worker_2.parent_id == parent_span.span_id + + def test_trace_spawn_multiple_greenlets_multiple_traces_dd_parent( + self, ot_tracer, dd_tracer, writer + ): + """ + Copy of gevent test with the same name but testing with mixed usage of + the opentracer and datadog tracers. + + Uses an opentracer span as the parent span. + """ + # multiple greenlets must be part of the same trace + def entrypoint(): + with dd_tracer.trace('greenlet.main'): + jobs = [gevent.spawn(green_1), gevent.spawn(green_2)] + gevent.joinall(jobs) + + def green_1(): + with ot_tracer.start_span('greenlet.worker') as span: + span.set_tag('worker_id', '1') + gevent.sleep(0.01) + + def green_2(): + with dd_tracer.trace('greenlet.worker') as span: + span.set_tag('worker_id', '2') + gevent.sleep(0.01) + + gevent.spawn(entrypoint).join() + traces = writer.pop_traces() + assert len(traces) == 3 + assert len(traces[0]) == 1 + parent_span = traces[2][0] + worker_1 = traces[0][0] + worker_2 = traces[1][0] + # check spans data and hierarchy + assert parent_span.name == 'greenlet.main' + assert worker_1.get_tag('worker_id') == '1' + assert worker_1.name == 'greenlet.worker' + assert worker_1.resource == 'greenlet.worker' + assert worker_1.parent_id == parent_span.span_id + assert worker_2.get_tag('worker_id') == '2' + assert worker_2.name == 'greenlet.worker' + assert worker_2.resource == 'greenlet.worker' + assert worker_2.parent_id == parent_span.span_id + + +class TestUtilsGevent(object): + """Test the util routines of the opentracer with gevent specific + configuration. + """ + + def test_get_context_provider_for_scope_manager_asyncio(self): + scope_manager = GeventScopeManager() + ctx_prov = get_context_provider_for_scope_manager(scope_manager) + assert isinstance( + ctx_prov, ddtrace.contrib.gevent.provider.GeventContextProvider + ) + + def test_tracer_context_provider_config(self): + tracer = ddtrace.opentracer.Tracer('mysvc', scope_manager=GeventScopeManager()) + assert isinstance( + tracer._dd_tracer.context_provider, + ddtrace.contrib.gevent.provider.GeventContextProvider, + ) diff --git a/tests/opentracer/test_tracer_tornado.py b/tests/opentracer/test_tracer_tornado.py new file mode 100644 index 0000000000..86f59bac3f --- /dev/null +++ b/tests/opentracer/test_tracer_tornado.py @@ -0,0 +1,30 @@ +import pytest +from opentracing.scope_managers.tornado import TornadoScopeManager + + +@pytest.fixture() +def ot_tracer(ot_tracer_factory): + """Fixture providing an opentracer configured for tornado usage.""" + yield ot_tracer_factory('tornado_svc', {}, TornadoScopeManager()) + + +class TestTracerTornado(object): + """ + Since the ScopeManager is provided by OpenTracing we should simply test + whether it exists and works for a very simple use-case. + """ + + def test_sanity(self, ot_tracer, writer): + with ot_tracer.start_active_span('one'): + with ot_tracer.start_active_span('two'): + pass + + traces = writer.pop_traces() + assert len(traces) == 1 + assert len(traces[0]) == 2 + assert traces[0][0].name == 'one' + assert traces[0][1].name == 'two' + + # the parenting is correct + assert traces[0][0] == traces[0][1]._parent + assert traces[0][0].trace_id == traces[0][1].trace_id diff --git a/tests/opentracer/test_utils.py b/tests/opentracer/test_utils.py new file mode 100644 index 0000000000..d38c0e55cb --- /dev/null +++ b/tests/opentracer/test_utils.py @@ -0,0 +1,13 @@ +from opentracing.scope_managers import ThreadLocalScopeManager + +import ddtrace +from ddtrace.opentracer.utils import ( + get_context_provider_for_scope_manager, +) + + +class TestOpentracerUtils(object): + def test_get_context_provider_for_scope_manager_thread(self): + scope_manager = ThreadLocalScopeManager() + ctx_prov = get_context_provider_for_scope_manager(scope_manager) + assert isinstance(ctx_prov, ddtrace.provider.DefaultContextProvider) diff --git a/tests/opentracer/utils.py b/tests/opentracer/utils.py new file mode 100644 index 0000000000..884f240666 --- /dev/null +++ b/tests/opentracer/utils.py @@ -0,0 +1,14 @@ +from ddtrace.opentracer import Tracer + + +def init_tracer(service_name, dd_tracer, scope_manager=None): + """A method that emulates what a user of OpenTracing would call to + initialize a Datadog opentracer. + + It accepts a Datadog tracer that should be the same one used for testing. + """ + writer = dd_tracer.writer + ot_tracer = Tracer(service_name, dd_tracer=dd_tracer, scope_manager=scope_manager) + dd_tracer.writer = writer + ot_tracer._dd_tracer = dd_tracer + return ot_tracer diff --git a/tests/propagation/__init__.py b/tests/propagation/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/propagation/test_http.py b/tests/propagation/test_http.py new file mode 100644 index 0000000000..267954fd08 --- /dev/null +++ b/tests/propagation/test_http.py @@ -0,0 +1,73 @@ +from unittest import TestCase +from tests.test_tracer import get_dummy_tracer + +from ddtrace.propagation.http import ( + HTTPPropagator, + HTTP_HEADER_TRACE_ID, + HTTP_HEADER_PARENT_ID, + HTTP_HEADER_SAMPLING_PRIORITY, + HTTP_HEADER_ORIGIN, +) + + +class TestHttpPropagation(TestCase): + """ + Tests related to the ``Context`` class that hosts the trace for the + current execution flow. + """ + + def test_inject(self): + tracer = get_dummy_tracer() + + with tracer.trace("global_root_span") as span: + span.context.sampling_priority = 2 + span.context._dd_origin = "synthetics" + headers = {} + propagator = HTTPPropagator() + propagator.inject(span.context, headers) + + assert int(headers[HTTP_HEADER_TRACE_ID]) == span.trace_id + assert int(headers[HTTP_HEADER_PARENT_ID]) == span.span_id + assert int(headers[HTTP_HEADER_SAMPLING_PRIORITY]) == span.context.sampling_priority + assert headers[HTTP_HEADER_ORIGIN] == span.context._dd_origin + + def test_extract(self): + tracer = get_dummy_tracer() + + headers = { + "x-datadog-trace-id": "1234", + "x-datadog-parent-id": "5678", + "x-datadog-sampling-priority": "1", + "x-datadog-origin": "synthetics", + } + + propagator = HTTPPropagator() + context = propagator.extract(headers) + tracer.context_provider.activate(context) + + with tracer.trace("local_root_span") as span: + assert span.trace_id == 1234 + assert span.parent_id == 5678 + assert span.context.sampling_priority == 1 + assert span.context._dd_origin == "synthetics" + + def test_WSGI_extract(self): + """Ensure we support the WSGI formatted headers as well.""" + tracer = get_dummy_tracer() + + headers = { + "HTTP_X_DATADOG_TRACE_ID": "1234", + "HTTP_X_DATADOG_PARENT_ID": "5678", + "HTTP_X_DATADOG_SAMPLING_PRIORITY": "1", + "HTTP_X_DATADOG_ORIGIN": "synthetics", + } + + propagator = HTTPPropagator() + context = propagator.extract(headers) + tracer.context_provider.activate(context) + + with tracer.trace("local_root_span") as span: + assert span.trace_id == 1234 + assert span.parent_id == 5678 + assert span.context.sampling_priority == 1 + assert span.context._dd_origin == "synthetics" diff --git a/tests/propagation/test_utils.py b/tests/propagation/test_utils.py new file mode 100644 index 0000000000..8b80e5a5d6 --- /dev/null +++ b/tests/propagation/test_utils.py @@ -0,0 +1,6 @@ +from ddtrace.propagation.utils import get_wsgi_header + + +class TestPropagationUtils(object): + def test_get_wsgi_header(self): + assert get_wsgi_header('x-datadog-trace-id') == 'HTTP_X_DATADOG_TRACE_ID' diff --git a/tests/subprocesstest.py b/tests/subprocesstest.py new file mode 100644 index 0000000000..7093a5dcbd --- /dev/null +++ b/tests/subprocesstest.py @@ -0,0 +1,131 @@ +""" +subprocesstest enables unittest test cases and suites to be run in separate +python interpreter instances. + +A base class SubprocessTestCase is provided that, when extended, will run test +cases marked with @run_in_subprocess in a separate python interpreter. +""" +import os +import subprocess +import sys +import unittest + + +SUBPROC_TEST_ATTR = '_subproc_test' +SUBPROC_ENV_VAR = 'SUBPROCESS_TEST' + + +def run_in_subprocess(obj): + """ + Marks a test case that is to be run in its own 'clean' interpreter instance. + + When applied to a TestCase class, each method will be run in a separate + interpreter instance. + + Usage on a class:: + + from tests.subprocesstest import SubprocessTestCase, run_in_subprocess + + @run_in_subprocess + class PatchTests(SubprocessTestCase): + # will be run in new interpreter + def test_patch_before_import(self): + patch() + import module + + # will be run in new interpreter as well + def test_patch_after_import(self): + import module + patch() + + + Usage on a test method:: + + class OtherTests(SubprocessTestCase): + @run_in_subprocess + def test_case(self): + pass + + + :param obj: method or class to run in a separate python interpreter. + :return: + """ + setattr(obj, SUBPROC_TEST_ATTR, True) + return obj + + +class SubprocessTestCase(unittest.TestCase): + def _full_method_name(self): + test = getattr(self, self._testMethodName) + # DEV: we have to use the internal self reference of the bound test + # method to pull out the class and module since using a mix of `self` + # and the test attributes will result in inconsistencies when the test + # method is defined on another class. + # A concrete case of this is a parent and child TestCase where the child + # doesn't override a parent test method. The full_method_name we want + # is that of the child test method (even though it exists on the parent) + modpath = test.__self__.__class__.__module__ + clsname = test.__self__.__class__.__name__ + testname = test.__name__ + testcase_name = '{}.{}.{}'.format(modpath, clsname, testname) + return testcase_name + + def _run_test_in_subprocess(self, result): + full_testcase_name = self._full_method_name() + + # copy the environment and include the special subprocess environment + # variable for the subprocess to detect + sp_test_env = os.environ.copy() + sp_test_env[SUBPROC_ENV_VAR] = 'True' + sp_test_cmd = ['python', '-m', 'unittest', full_testcase_name] + sp = subprocess.Popen( + sp_test_cmd, + stdout=subprocess.PIPE, + stderr=subprocess.PIPE, + env=sp_test_env, + ) + stdout, stderr = sp.communicate() + + if sp.returncode: + try: + cmdf = ' '.join(sp_test_cmd) + raise Exception('Subprocess Test "{}" Failed'.format(cmdf)) + except Exception: + exc_info = sys.exc_info() + + # DEV: stderr, stdout are byte sequences so to print them nicely + # back out they should be decoded. + sys.stderr.write(stderr.decode()) + sys.stdout.write(stdout.decode()) + result.addFailure(self, exc_info) + else: + result.addSuccess(self) + + def _in_subprocess(self): + """Determines if the test is being run in a subprocess. + + This is done by checking for an environment variable that we call the + subprocess test with. + + :return: whether the test is a subprocess test + """ + return os.getenv(SUBPROC_ENV_VAR, None) is not None + + def _is_subprocess_test(self): + if hasattr(self, SUBPROC_TEST_ATTR): + return True + + test = getattr(self, self._testMethodName) + if hasattr(test, SUBPROC_TEST_ATTR): + return True + + return False + + def run(self, result=None): + if not self._is_subprocess_test(): + return super(SubprocessTestCase, self).run(result=result) + + if self._in_subprocess(): + return super(SubprocessTestCase, self).run(result=result) + else: + self._run_test_in_subprocess(result) diff --git a/tests/test_api.py b/tests/test_api.py new file mode 100644 index 0000000000..51d3a1b570 --- /dev/null +++ b/tests/test_api.py @@ -0,0 +1,286 @@ +import mock +import re +import socket +import threading +import time +import warnings + +from unittest import TestCase + +import pytest + +from ddtrace.api import API, Response +from ddtrace.compat import iteritems, httplib, PY3 +from ddtrace.internal.runtime.container import CGroupInfo +from ddtrace.vendor.six.moves import BaseHTTPServer, socketserver + + +class _BaseHTTPRequestHandler(BaseHTTPServer.BaseHTTPRequestHandler): + error_message_format = '%(message)s\n' + error_content_type = 'text/plain' + + @staticmethod + def log_message(format, *args): # noqa: A002 + pass + + +class _APIEndpointRequestHandlerTest(_BaseHTTPRequestHandler): + + def do_PUT(self): + self.send_error(200, 'OK') + + +class _TimeoutAPIEndpointRequestHandlerTest(_BaseHTTPRequestHandler): + def do_PUT(self): + # This server sleeps longer than our timeout + time.sleep(5) + + +class _ResetAPIEndpointRequestHandlerTest(_BaseHTTPRequestHandler): + + def do_PUT(self): + return + + +_HOST = '0.0.0.0' +_TIMEOUT_PORT = 8743 +_RESET_PORT = _TIMEOUT_PORT + 1 + + +class UDSHTTPServer(socketserver.UnixStreamServer, BaseHTTPServer.HTTPServer): + def server_bind(self): + BaseHTTPServer.HTTPServer.server_bind(self) + + +def _make_uds_server(path, request_handler): + server = UDSHTTPServer(path, request_handler) + t = threading.Thread(target=server.serve_forever) + # Set daemon just in case something fails + t.daemon = True + t.start() + return server, t + + +@pytest.fixture +def endpoint_uds_server(tmp_path): + server, thread = _make_uds_server(str(tmp_path / 'uds_server_socket'), _APIEndpointRequestHandlerTest) + try: + yield server + finally: + server.shutdown() + thread.join() + + +def _make_server(port, request_handler): + server = BaseHTTPServer.HTTPServer((_HOST, port), request_handler) + t = threading.Thread(target=server.serve_forever) + # Set daemon just in case something fails + t.daemon = True + t.start() + return server, t + + +@pytest.fixture(scope='module') +def endpoint_test_timeout_server(): + server, thread = _make_server(_TIMEOUT_PORT, _TimeoutAPIEndpointRequestHandlerTest) + try: + yield thread + finally: + server.shutdown() + thread.join() + + +@pytest.fixture(scope='module') +def endpoint_test_reset_server(): + server, thread = _make_server(_RESET_PORT, _ResetAPIEndpointRequestHandlerTest) + try: + yield thread + finally: + server.shutdown() + thread.join() + + +class ResponseMock: + def __init__(self, content, status=200): + self.status = status + self.content = content + + def read(self): + return self.content + + +def test_api_str(): + api = API('localhost', 8126, https=True) + assert str(api) == 'https://localhost:8126' + api = API('localhost', 8126, '/path/to/uds') + assert str(api) == 'unix:///path/to/uds' + + +class APITests(TestCase): + + def setUp(self): + # DEV: Mock here instead of in tests, before we have patched `httplib.HTTPConnection` + self.conn = mock.MagicMock(spec=httplib.HTTPConnection) + self.api = API('localhost', 8126) + + def tearDown(self): + del self.api + del self.conn + + def test_typecast_port(self): + api = API('localhost', u'8126') + self.assertEqual(api.port, 8126) + + @mock.patch('logging.Logger.debug') + def test_parse_response_json(self, log): + test_cases = { + 'OK': dict( + js=None, + log='Cannot parse Datadog Agent response, please make sure your Datadog Agent is up to date', + ), + 'OK\n': dict( + js=None, + log='Cannot parse Datadog Agent response, please make sure your Datadog Agent is up to date', + ), + 'error:unsupported-endpoint': dict( + js=None, + log='Unable to parse Datadog Agent JSON response: \'error:unsupported-endpoint\'', + ), + 42: dict( # int as key to trigger TypeError + js=None, + log='Unable to parse Datadog Agent JSON response: 42', + ), + '{}': dict(js={}), + '[]': dict(js=[]), + + # Priority sampling "rate_by_service" response + ('{"rate_by_service": ' + '{"service:,env:":0.5, "service:mcnulty,env:test":0.9, "service:postgres,env:test":0.6}}'): dict( + js=dict( + rate_by_service={ + 'service:,env:': 0.5, + 'service:mcnulty,env:test': 0.9, + 'service:postgres,env:test': 0.6, + }, + ), + ), + ' [4,2,1] ': dict(js=[4, 2, 1]), + } + + for k, v in iteritems(test_cases): + log.reset_mock() + + r = Response.from_http_response(ResponseMock(k)) + js = r.get_json() + assert v['js'] == js + if 'log' in v: + log.assert_called_once() + msg = log.call_args[0][0] % log.call_args[0][1:] + assert re.match(v['log'], msg), msg + + @mock.patch('ddtrace.compat.httplib.HTTPConnection') + def test_put_connection_close(self, HTTPConnection): + """ + When calling API._put + we close the HTTPConnection we create + """ + HTTPConnection.return_value = self.conn + + with warnings.catch_warnings(record=True) as w: + self.api._put('/test', '', 1) + + self.assertEqual(len(w), 0, 'Test raised unexpected warnings: {0!r}'.format(w)) + + self.conn.request.assert_called_once() + self.conn.close.assert_called_once() + + @mock.patch('ddtrace.compat.httplib.HTTPConnection') + def test_put_connection_close_exception(self, HTTPConnection): + """ + When calling API._put raises an exception + we close the HTTPConnection we create + """ + HTTPConnection.return_value = self.conn + # Ensure calling `request` raises an exception + self.conn.request.side_effect = Exception + + with warnings.catch_warnings(record=True) as w: + with self.assertRaises(Exception): + self.api._put('/test', '', 1) + + self.assertEqual(len(w), 0, 'Test raised unexpected warnings: {0!r}'.format(w)) + + self.conn.request.assert_called_once() + self.conn.close.assert_called_once() + + +def test_https(): + conn = mock.MagicMock(spec=httplib.HTTPSConnection) + api = API('localhost', 8126, https=True) + with mock.patch('ddtrace.compat.httplib.HTTPSConnection') as HTTPSConnection: + HTTPSConnection.return_value = conn + api._put('/test', '', 1) + conn.request.assert_called_once() + conn.close.assert_called_once() + + +def test_flush_connection_timeout_connect(): + payload = mock.Mock() + payload.get_payload.return_value = 'foobar' + payload.length = 12 + api = API(_HOST, 2019) + response = api._flush(payload) + if PY3: + assert isinstance(response, (OSError, ConnectionRefusedError)) # noqa: F821 + else: + assert isinstance(response, socket.error) + assert response.errno in (99, 111) + + +def test_flush_connection_timeout(endpoint_test_timeout_server): + payload = mock.Mock() + payload.get_payload.return_value = 'foobar' + payload.length = 12 + api = API(_HOST, _TIMEOUT_PORT) + response = api._flush(payload) + assert isinstance(response, socket.timeout) + + +def test_flush_connection_reset(endpoint_test_reset_server): + payload = mock.Mock() + payload.get_payload.return_value = 'foobar' + payload.length = 12 + api = API(_HOST, _RESET_PORT) + response = api._flush(payload) + if PY3: + assert isinstance(response, (httplib.BadStatusLine, ConnectionResetError)) # noqa: F821 + else: + assert isinstance(response, httplib.BadStatusLine) + + +def test_flush_connection_uds(endpoint_uds_server): + payload = mock.Mock() + payload.get_payload.return_value = 'foobar' + payload.length = 12 + api = API(_HOST, 2019, uds_path=endpoint_uds_server.server_address) + response = api._flush(payload) + assert response.status == 200 + + +@mock.patch('ddtrace.internal.runtime.container.get_container_info') +def test_api_container_info(get_container_info): + # When we have container information + # DEV: `get_container_info` will return a `CGroupInfo` with a `container_id` or `None` + info = CGroupInfo(container_id='test-container-id') + get_container_info.return_value = info + + api = API(_HOST, 8126) + assert api._container_info is info + assert api._headers['Datadog-Container-Id'] == 'test-container-id' + + # When we do not have container information + get_container_info.return_value = None + + api = API(_HOST, 8126) + assert api._container_info is None + assert 'Datadog-Container-Id' not in api._headers diff --git a/tests/test_compat.py b/tests/test_compat.py new file mode 100644 index 0000000000..1bd3ec5fad --- /dev/null +++ b/tests/test_compat.py @@ -0,0 +1,116 @@ +# -*- coding: utf-8 -*- +# Define source file encoding to support raw unicode characters in Python 2 +import sys + +# Third party +import pytest + +# Project +from ddtrace.compat import to_unicode, PY3, reraise, get_connection_response, is_integer + + +if PY3: + unicode = str + + +class TestCompat(object): + + def test_to_unicode_string(self): + # Calling `compat.to_unicode` on a non-unicode string + res = to_unicode(b'test') + assert type(res) == unicode + assert res == 'test' + + def test_to_unicode_unicode_encoded(self): + # Calling `compat.to_unicode` on a unicode encoded string + res = to_unicode(b'\xc3\xbf') + assert type(res) == unicode + assert res == u'ÿ' + + def test_to_unicode_unicode_double_decode(self): + # Calling `compat.to_unicode` on a unicode decoded string + # This represents the double-decode issue, which can cause a `UnicodeEncodeError` + # `'\xc3\xbf'.decode('utf-8').decode('utf-8')` + res = to_unicode(b'\xc3\xbf'.decode('utf-8')) + assert type(res) == unicode + assert res == u'ÿ' + + def test_to_unicode_unicode_string(self): + # Calling `compat.to_unicode` on a unicode string + res = to_unicode(u'ÿ') + assert type(res) == unicode + assert res == u'ÿ' + + def test_to_unicode_bytearray(self): + # Calling `compat.to_unicode` with a `bytearray` containing unicode + res = to_unicode(bytearray(b'\xc3\xbf')) + assert type(res) == unicode + assert res == u'ÿ' + + def test_to_unicode_bytearray_double_decode(self): + # Calling `compat.to_unicode` with an already decoded `bytearray` + # This represents the double-decode issue, which can cause a `UnicodeEncodeError` + # `bytearray('\xc3\xbf').decode('utf-8').decode('utf-8')` + res = to_unicode(bytearray(b'\xc3\xbf').decode('utf-8')) + assert type(res) == unicode + assert res == u'ÿ' + + def test_to_unicode_non_string(self): + # Calling `compat.to_unicode` on non-string types + assert to_unicode(1) == u'1' + assert to_unicode(True) == u'True' + assert to_unicode(None) == u'None' + assert to_unicode(dict(key='value')) == u'{\'key\': \'value\'}' + + def test_get_connection_response(self): + """Ensure that buffering is in kwargs.""" + + class MockConn(object): + def getresponse(self, *args, **kwargs): + if PY3: + assert 'buffering' not in kwargs + else: + assert 'buffering' in kwargs + + mock = MockConn() + get_connection_response(mock) + + +class TestPy2Py3Compat(object): + """Common tests to ensure functions are both Python 2 and + Python 3 compatible. + """ + def test_reraise(self): + # ensure the `raise` function is Python 2/3 compatible + with pytest.raises(Exception) as ex: + try: + raise Exception('Ouch!') + except Exception: + # original exception we want to re-raise + (typ, val, tb) = sys.exc_info() + try: + # this exception doesn't allow a re-raise, and we need + # to use the previous one collected via `exc_info()` + raise Exception('Obfuscate!') + except Exception: + pass + # this call must be Python 2 and 3 compatible + raise reraise(typ, val, tb) + assert ex.value.args[0] == 'Ouch!' + + +@pytest.mark.parametrize('obj,expected', [ + (1, True), + (-1, True), + (0, True), + (1.0, False), + (-1.0, False), + (True, False), + (False, False), + (dict(), False), + ([], False), + (tuple(), False), + (object(), False), +]) +def test_is_integer(obj, expected): + assert is_integer(obj) is expected diff --git a/tests/test_context.py b/tests/test_context.py new file mode 100644 index 0000000000..3664d440bd --- /dev/null +++ b/tests/test_context.py @@ -0,0 +1,449 @@ +import contextlib +import logging +import mock +import threading + +from .base import BaseTestCase +from tests.test_tracer import get_dummy_tracer + +import pytest + +from ddtrace.span import Span +from ddtrace.context import Context +from ddtrace.constants import HOSTNAME_KEY +from ddtrace.ext.priority import USER_REJECT, AUTO_REJECT, AUTO_KEEP, USER_KEEP + + +@pytest.fixture +def tracer_with_debug_logging(): + # All the tracers, dummy or not, shares the same logging object. + tracer = get_dummy_tracer() + level = tracer.log.level + tracer.log.setLevel(logging.DEBUG) + try: + yield tracer + finally: + tracer.log.setLevel(level) + + +@mock.patch('logging.Logger.debug') +def test_log_unfinished_spans(log, tracer_with_debug_logging): + # when the root parent is finished, notify if there are spans still pending + tracer = tracer_with_debug_logging + ctx = Context() + # manually create a root-child trace + root = Span(tracer=tracer, name='root') + child_1 = Span(tracer=tracer, name='child_1', trace_id=root.trace_id, parent_id=root.span_id) + child_2 = Span(tracer=tracer, name='child_2', trace_id=root.trace_id, parent_id=root.span_id) + child_1._parent = root + child_2._parent = root + ctx.add_span(root) + ctx.add_span(child_1) + ctx.add_span(child_2) + # close only the parent + root.finish() + unfinished_spans_log = log.call_args_list[-3][0][2] + child_1_log = log.call_args_list[-2][0][1] + child_2_log = log.call_args_list[-1][0][1] + assert 2 == unfinished_spans_log + assert 'name child_1' in child_1_log + assert 'name child_2' in child_2_log + assert 'duration 0.000000s' in child_1_log + assert 'duration 0.000000s' in child_2_log + + +class TestTracingContext(BaseTestCase): + """ + Tests related to the ``Context`` class that hosts the trace for the + current execution flow. + """ + @contextlib.contextmanager + def override_partial_flush(self, ctx, enabled, min_spans): + original_enabled = ctx._partial_flush_enabled + original_min_spans = ctx._partial_flush_min_spans + + ctx._partial_flush_enabled = enabled + ctx._partial_flush_min_spans = min_spans + + try: + yield + finally: + ctx._partial_flush_enabled = original_enabled + ctx._partial_flush_min_spans = original_min_spans + + def test_add_span(self): + # it should add multiple spans + ctx = Context() + span = Span(tracer=None, name='fake_span') + ctx.add_span(span) + assert 1 == len(ctx._trace) + assert 'fake_span' == ctx._trace[0].name + assert ctx == span.context + + def test_context_sampled(self): + # a context is sampled if the spans are sampled + ctx = Context() + span = Span(tracer=None, name='fake_span') + ctx.add_span(span) + span.finish() + trace, sampled = ctx.get() + assert sampled is True + assert ctx.sampling_priority is None + + def test_context_priority(self): + # a context is sampled if the spans are sampled + ctx = Context() + for priority in [USER_REJECT, AUTO_REJECT, AUTO_KEEP, USER_KEEP, None, 999]: + ctx.sampling_priority = priority + span = Span(tracer=None, name=('fake_span_%s' % repr(priority))) + ctx.add_span(span) + span.finish() + # It's "normal" to have sampled be true even when priority sampling is + # set to 0 or -1. It would stay false even even with priority set to 2. + # The only criteria to send (or not) the spans to the agent should be + # this "sampled" attribute, as it's tightly related to the trace weight. + assert priority == ctx.sampling_priority + trace, sampled = ctx.get() + assert sampled is True, 'priority has no impact on sampled status' + + def test_current_span(self): + # it should return the current active span + ctx = Context() + span = Span(tracer=None, name='fake_span') + ctx.add_span(span) + assert span == ctx.get_current_span() + + def test_current_root_span_none(self): + # it should return none when there is no root span + ctx = Context() + assert ctx.get_current_root_span() is None + + def test_current_root_span(self): + # it should return the current active root span + ctx = Context() + span = Span(tracer=None, name='fake_span') + ctx.add_span(span) + assert span == ctx.get_current_root_span() + + def test_close_span(self): + # it should keep track of closed spans, moving + # the current active to it's parent + ctx = Context() + span = Span(tracer=None, name='fake_span') + ctx.add_span(span) + ctx.close_span(span) + assert ctx.get_current_span() is None + + def test_get_trace(self): + # it should return the internal trace structure + # if the context is finished + ctx = Context() + span = Span(tracer=None, name='fake_span') + ctx.add_span(span) + span.finish() + trace, sampled = ctx.get() + assert [span] == trace + assert sampled is True + # the context should be empty + assert 0 == len(ctx._trace) + assert ctx._current_span is None + + def test_get_trace_empty(self): + # it should return None if the Context is not finished + ctx = Context() + span = Span(tracer=None, name='fake_span') + ctx.add_span(span) + trace, sampled = ctx.get() + assert trace is None + assert sampled is None + + @mock.patch('ddtrace.internal.hostname.get_hostname') + def test_get_report_hostname_enabled(self, get_hostname): + get_hostname.return_value = 'test-hostname' + + with self.override_global_config(dict(report_hostname=True)): + # Create a context and add a span and finish it + ctx = Context() + span = Span(tracer=None, name='fake_span') + ctx.add_span(span) + span.finish() + + # Assert that we have not added the tag to the span yet + assert span.get_tag(HOSTNAME_KEY) is None + + # Assert that retrieving the trace sets the tag + trace, _ = ctx.get() + assert trace[0].get_tag(HOSTNAME_KEY) == 'test-hostname' + assert span.get_tag(HOSTNAME_KEY) == 'test-hostname' + + @mock.patch('ddtrace.internal.hostname.get_hostname') + def test_get_report_hostname_disabled(self, get_hostname): + get_hostname.return_value = 'test-hostname' + + with self.override_global_config(dict(report_hostname=False)): + # Create a context and add a span and finish it + ctx = Context() + span = Span(tracer=None, name='fake_span') + ctx.add_span(span) + span.finish() + + # Assert that we have not added the tag to the span yet + assert span.get_tag(HOSTNAME_KEY) is None + + # Assert that retrieving the trace does not set the tag + trace, _ = ctx.get() + assert trace[0].get_tag(HOSTNAME_KEY) is None + assert span.get_tag(HOSTNAME_KEY) is None + + @mock.patch('ddtrace.internal.hostname.get_hostname') + def test_get_report_hostname_default(self, get_hostname): + get_hostname.return_value = 'test-hostname' + + # Create a context and add a span and finish it + ctx = Context() + span = Span(tracer=None, name='fake_span') + ctx.add_span(span) + span.finish() + + # Assert that we have not added the tag to the span yet + assert span.get_tag(HOSTNAME_KEY) is None + + # Assert that retrieving the trace does not set the tag + trace, _ = ctx.get() + assert trace[0].get_tag(HOSTNAME_KEY) is None + assert span.get_tag(HOSTNAME_KEY) is None + + def test_partial_flush(self): + """ + When calling `Context.get` + When partial flushing is enabled + When we have just enough finished spans to flush + We return the finished spans + """ + tracer = get_dummy_tracer() + ctx = Context() + + # Create a root span with 5 children, all of the children are finished, the root is not + root = Span(tracer=tracer, name='root') + ctx.add_span(root) + for i in range(5): + child = Span(tracer=tracer, name='child_{}'.format(i), trace_id=root.trace_id, parent_id=root.span_id) + child._parent = root + child.finished = True + ctx.add_span(child) + ctx.close_span(child) + + with self.override_partial_flush(ctx, enabled=True, min_spans=5): + trace, sampled = ctx.get() + + self.assertIsNotNone(trace) + self.assertIsNotNone(sampled) + + self.assertEqual(len(trace), 5) + self.assertEqual( + set(['child_0', 'child_1', 'child_2', 'child_3', 'child_4']), + set([span.name for span in trace]) + ) + + # Ensure we clear/reset internal stats as expected + self.assertEqual(ctx._trace, [root]) + with self.override_partial_flush(ctx, enabled=True, min_spans=5): + trace, sampled = ctx.get() + self.assertIsNone(trace) + self.assertIsNone(sampled) + + def test_partial_flush_too_many(self): + """ + When calling `Context.get` + When partial flushing is enabled + When we have more than the minimum number of spans needed to flush + We return the finished spans + """ + tracer = get_dummy_tracer() + ctx = Context() + + # Create a root span with 5 children, all of the children are finished, the root is not + root = Span(tracer=tracer, name='root') + ctx.add_span(root) + for i in range(5): + child = Span(tracer=tracer, name='child_{}'.format(i), trace_id=root.trace_id, parent_id=root.span_id) + child._parent = root + child.finished = True + ctx.add_span(child) + ctx.close_span(child) + + with self.override_partial_flush(ctx, enabled=True, min_spans=1): + trace, sampled = ctx.get() + + self.assertIsNotNone(trace) + self.assertIsNotNone(sampled) + + self.assertEqual(len(trace), 5) + self.assertEqual( + set(['child_0', 'child_1', 'child_2', 'child_3', 'child_4']), + set([span.name for span in trace]) + ) + + # Ensure we clear/reset internal stats as expected + self.assertEqual(ctx._trace, [root]) + with self.override_partial_flush(ctx, enabled=True, min_spans=5): + trace, sampled = ctx.get() + self.assertIsNone(trace) + self.assertIsNone(sampled) + + def test_partial_flush_too_few(self): + """ + When calling `Context.get` + When partial flushing is enabled + When we do not have enough finished spans to flush + We return no spans + """ + tracer = get_dummy_tracer() + ctx = Context() + + # Create a root span with 5 children, all of the children are finished, the root is not + root = Span(tracer=tracer, name='root') + ctx.add_span(root) + for i in range(5): + child = Span(tracer=tracer, name='child_{}'.format(i), trace_id=root.trace_id, parent_id=root.span_id) + child._parent = root + child.finished = True + ctx.add_span(child) + ctx.close_span(child) + + # Test with having 1 too few spans for partial flush + with self.override_partial_flush(ctx, enabled=True, min_spans=6): + trace, sampled = ctx.get() + + self.assertIsNone(trace) + self.assertIsNone(sampled) + + self.assertEqual(len(ctx._trace), 6) + self.assertEqual( + set(['root', 'child_0', 'child_1', 'child_2', 'child_3', 'child_4']), + set([span.name for span in ctx._trace]) + ) + + def test_partial_flush_remaining(self): + """ + When calling `Context.get` + When partial flushing is enabled + When we have some unfinished spans + We keep the unfinished spans around + """ + tracer = get_dummy_tracer() + ctx = Context() + + # Create a root span with 5 children, all of the children are finished, the root is not + root = Span(tracer=tracer, name='root') + ctx.add_span(root) + for i in range(10): + child = Span(tracer=tracer, name='child_{}'.format(i), trace_id=root.trace_id, parent_id=root.span_id) + child._parent = root + ctx.add_span(child) + + # CLose the first 5 only + if i < 5: + child.finished = True + ctx.close_span(child) + + with self.override_partial_flush(ctx, enabled=True, min_spans=5): + trace, sampled = ctx.get() + + # Assert partially flushed spans + self.assertTrue(len(trace), 5) + self.assertIsNotNone(sampled) + self.assertEqual( + set(['child_0', 'child_1', 'child_2', 'child_3', 'child_4']), + set([span.name for span in trace]) + ) + + # Assert remaining unclosed spans + self.assertEqual(len(ctx._trace), 6) + self.assertEqual( + set(['root', 'child_5', 'child_6', 'child_7', 'child_8', 'child_9']), + set([span.name for span in ctx._trace]), + ) + + def test_finished(self): + # a Context is finished if all spans inside are finished + ctx = Context() + span = Span(tracer=None, name='fake_span') + ctx.add_span(span) + ctx.close_span(span) + + @mock.patch('logging.Logger.debug') + def test_log_unfinished_spans_disabled(self, log): + # the trace finished status logging is disabled + tracer = get_dummy_tracer() + ctx = Context() + # manually create a root-child trace + root = Span(tracer=tracer, name='root') + child_1 = Span(tracer=tracer, name='child_1', trace_id=root.trace_id, parent_id=root.span_id) + child_2 = Span(tracer=tracer, name='child_2', trace_id=root.trace_id, parent_id=root.span_id) + child_1._parent = root + child_2._parent = root + ctx.add_span(root) + ctx.add_span(child_1) + ctx.add_span(child_2) + # close only the parent + root.finish() + # the logger has never been invoked to print unfinished spans + for call, _ in log.call_args_list: + msg = call[0] + assert 'the trace has %d unfinished spans' not in msg + + @mock.patch('logging.Logger.debug') + def test_log_unfinished_spans_when_ok(self, log): + # if the unfinished spans logging is enabled but the trace is finished, don't log anything + tracer = get_dummy_tracer() + ctx = Context() + # manually create a root-child trace + root = Span(tracer=tracer, name='root') + child = Span(tracer=tracer, name='child_1', trace_id=root.trace_id, parent_id=root.span_id) + child._parent = root + ctx.add_span(root) + ctx.add_span(child) + # close the trace + child.finish() + root.finish() + # the logger has never been invoked to print unfinished spans + for call, _ in log.call_args_list: + msg = call[0] + assert 'the trace has %d unfinished spans' not in msg + + def test_thread_safe(self): + # the Context must be thread-safe + ctx = Context() + + def _fill_ctx(): + span = Span(tracer=None, name='fake_span') + ctx.add_span(span) + + threads = [threading.Thread(target=_fill_ctx) for _ in range(100)] + + for t in threads: + t.daemon = True + t.start() + + for t in threads: + t.join() + + assert 100 == len(ctx._trace) + + def test_clone(self): + ctx = Context() + ctx.sampling_priority = 2 + # manually create a root-child trace + root = Span(tracer=None, name='root') + child = Span(tracer=None, name='child_1', trace_id=root.trace_id, parent_id=root.span_id) + child._parent = root + ctx.add_span(root) + ctx.add_span(child) + cloned_ctx = ctx.clone() + assert cloned_ctx._parent_trace_id == ctx._parent_trace_id + assert cloned_ctx._parent_span_id == ctx._parent_span_id + assert cloned_ctx._sampling_priority == ctx._sampling_priority + assert cloned_ctx._dd_origin == ctx._dd_origin + assert cloned_ctx._current_span == ctx._current_span + assert cloned_ctx._trace == [] diff --git a/tests/test_encoders.py b/tests/test_encoders.py new file mode 100644 index 0000000000..682a550731 --- /dev/null +++ b/tests/test_encoders.py @@ -0,0 +1,136 @@ +import json + +from unittest import TestCase + +from ddtrace.span import Span +from ddtrace.compat import msgpack_type, string_type +from ddtrace.encoding import JSONEncoder, MsgpackEncoder +from ddtrace.vendor import msgpack + + +class TestEncoders(TestCase): + """ + Ensures that Encoders serialize the payload as expected. + """ + def test_encode_traces_json(self): + # test encoding for JSON format + traces = [] + traces.append([ + Span(name='client.testing', tracer=None), + Span(name='client.testing', tracer=None), + ]) + traces.append([ + Span(name='client.testing', tracer=None), + Span(name='client.testing', tracer=None), + ]) + + encoder = JSONEncoder() + spans = encoder.encode_traces(traces) + items = json.loads(spans) + + # test the encoded output that should be a string + # and the output must be flatten + assert isinstance(spans, string_type) + assert len(items) == 2 + assert len(items[0]) == 2 + assert len(items[1]) == 2 + for i in range(2): + for j in range(2): + assert 'client.testing' == items[i][j]['name'] + + def test_join_encoded_json(self): + # test encoding for JSON format + traces = [] + traces.append([ + Span(name='client.testing', tracer=None), + Span(name='client.testing', tracer=None), + ]) + traces.append([ + Span(name='client.testing', tracer=None), + Span(name='client.testing', tracer=None), + ]) + + encoder = JSONEncoder() + + # Encode each trace on it's own + encoded_traces = [ + encoder.encode_trace(trace) + for trace in traces + ] + + # Join the encoded traces together + data = encoder.join_encoded(encoded_traces) + + # Parse the resulting data + items = json.loads(data) + + # test the encoded output that should be a string + # and the output must be flatten + assert isinstance(data, string_type) + assert len(items) == 2 + assert len(items[0]) == 2 + assert len(items[1]) == 2 + for i in range(2): + for j in range(2): + assert 'client.testing' == items[i][j]['name'] + + def test_encode_traces_msgpack(self): + # test encoding for MsgPack format + traces = [] + traces.append([ + Span(name='client.testing', tracer=None), + Span(name='client.testing', tracer=None), + ]) + traces.append([ + Span(name='client.testing', tracer=None), + Span(name='client.testing', tracer=None), + ]) + + encoder = MsgpackEncoder() + spans = encoder.encode_traces(traces) + items = msgpack.unpackb(spans) + + # test the encoded output that should be a string + # and the output must be flatten + assert isinstance(spans, msgpack_type) + assert len(items) == 2 + assert len(items[0]) == 2 + assert len(items[1]) == 2 + for i in range(2): + for j in range(2): + assert b'client.testing' == items[i][j][b'name'] + + def test_join_encoded_msgpack(self): + # test encoding for MsgPack format + traces = [] + traces.append([ + Span(name='client.testing', tracer=None), + Span(name='client.testing', tracer=None), + ]) + traces.append([ + Span(name='client.testing', tracer=None), + Span(name='client.testing', tracer=None), + ]) + + encoder = MsgpackEncoder() + + # Encode each individual trace on it's own + encoded_traces = [ + encoder.encode_trace(trace) + for trace in traces + ] + # Join the encoded traces together + data = encoder.join_encoded(encoded_traces) + + # Parse the encoded data + items = msgpack.unpackb(data) + + # test the encoded output that should be a string + # and the output must be flatten + assert isinstance(data, msgpack_type) + assert len(items) == 2 + assert len(items[0]) == 2 + assert len(items[1]) == 2 + for i in range(2): + for j in range(2): + assert b'client.testing' == items[i][j][b'name'] diff --git a/tests/test_filters.py b/tests/test_filters.py new file mode 100644 index 0000000000..d4baacc9b7 --- /dev/null +++ b/tests/test_filters.py @@ -0,0 +1,35 @@ +from unittest import TestCase + +from ddtrace.filters import FilterRequestsOnUrl +from ddtrace.span import Span +from ddtrace.ext.http import URL + + +class FilterRequestOnUrlTests(TestCase): + def test_is_match(self): + span = Span(name='Name', tracer=None) + span.set_tag(URL, r'http://example.com') + filtr = FilterRequestsOnUrl('http://examp.*.com') + trace = filtr.process_trace([span]) + self.assertIsNone(trace) + + def test_is_not_match(self): + span = Span(name='Name', tracer=None) + span.set_tag(URL, r'http://anotherexample.com') + filtr = FilterRequestsOnUrl('http://examp.*.com') + trace = filtr.process_trace([span]) + self.assertIsNotNone(trace) + + def test_list_match(self): + span = Span(name='Name', tracer=None) + span.set_tag(URL, r'http://anotherdomain.example.com') + filtr = FilterRequestsOnUrl([r'http://domain\.example\.com', r'http://anotherdomain\.example\.com']) + trace = filtr.process_trace([span]) + self.assertIsNone(trace) + + def test_list_no_match(self): + span = Span(name='Name', tracer=None) + span.set_tag(URL, r'http://cooldomain.example.com') + filtr = FilterRequestsOnUrl([r'http://domain\.example\.com', r'http://anotherdomain\.example\.com']) + trace = filtr.process_trace([span]) + self.assertIsNotNone(trace) diff --git a/tests/test_global_config.py b/tests/test_global_config.py new file mode 100644 index 0000000000..1b577bc107 --- /dev/null +++ b/tests/test_global_config.py @@ -0,0 +1,243 @@ +import mock +from unittest import TestCase + +import pytest + +from ddtrace import config as global_config +from ddtrace.settings import Config + +from .test_tracer import get_dummy_tracer + + +class GlobalConfigTestCase(TestCase): + """Test the `Configuration` class that stores integration settings""" + def setUp(self): + self.config = Config() + self.tracer = get_dummy_tracer() + + def test_registration(self): + # ensure an integration can register a new list of settings + settings = { + 'distributed_tracing': True, + } + self.config._add('requests', settings) + assert self.config.requests['distributed_tracing'] is True + + def test_settings_copy(self): + # ensure that once an integration is registered, a copy + # of the settings is stored to avoid side-effects + experimental = { + 'request_enqueuing': True, + } + settings = { + 'distributed_tracing': True, + 'experimental': experimental, + } + self.config._add('requests', settings) + + settings['distributed_tracing'] = False + experimental['request_enqueuing'] = False + assert self.config.requests['distributed_tracing'] is True + assert self.config.requests['experimental']['request_enqueuing'] is True + + def test_missing_integration_key(self): + # ensure a meaningful exception is raised when an integration + # that is not available is retrieved in the configuration + # object + with pytest.raises(KeyError) as e: + self.config.new_integration['some_key'] + + assert isinstance(e.value, KeyError) + + def test_global_configuration(self): + # ensure a global configuration is available in the `ddtrace` module + assert isinstance(global_config, Config) + + def test_settings_merge(self): + """ + When calling `config._add()` + when existing settings exist + we do not overwrite the existing settings + """ + self.config.requests['split_by_domain'] = True + self.config._add('requests', dict(split_by_domain=False)) + assert self.config.requests['split_by_domain'] is True + + def test_settings_overwrite(self): + """ + When calling `config._add(..., merge=False)` + when existing settings exist + we overwrite the existing settings + """ + self.config.requests['split_by_domain'] = True + self.config._add('requests', dict(split_by_domain=False), merge=False) + assert self.config.requests['split_by_domain'] is False + + def test_settings_merge_deep(self): + """ + When calling `config._add()` + when existing "deep" settings exist + we do not overwrite the existing settings + """ + self.config.requests['a'] = dict( + b=dict( + c=True, + ), + ) + self.config._add('requests', dict( + a=dict( + b=dict( + c=False, + d=True, + ), + ), + )) + assert self.config.requests['a']['b']['c'] is True + assert self.config.requests['a']['b']['d'] is True + + def test_settings_hook(self): + """ + When calling `Hooks._emit()` + When there is a hook registered + we call the hook as expected + """ + # Setup our hook + @self.config.web.hooks.on('request') + def on_web_request(span): + span.set_tag('web.request', '/') + + # Create our span + span = self.tracer.start_span('web.request') + assert 'web.request' not in span.meta + + # Emit the span + self.config.web.hooks._emit('request', span) + + # Assert we updated the span as expected + assert span.get_tag('web.request') == '/' + + def test_settings_hook_args(self): + """ + When calling `Hooks._emit()` with arguments + When there is a hook registered + we call the hook as expected + """ + # Setup our hook + @self.config.web.hooks.on('request') + def on_web_request(span, request, response): + span.set_tag('web.request', request) + span.set_tag('web.response', response) + + # Create our span + span = self.tracer.start_span('web.request') + assert 'web.request' not in span.meta + + # Emit the span + # DEV: The actual values don't matter, we just want to test args + kwargs usage + self.config.web.hooks._emit('request', span, 'request', response='response') + + # Assert we updated the span as expected + assert span.get_tag('web.request') == 'request' + assert span.get_tag('web.response') == 'response' + + def test_settings_hook_args_failure(self): + """ + When calling `Hooks._emit()` with arguments + When there is a hook registered that is missing parameters + we do not raise an exception + """ + # Setup our hook + # DEV: We are missing the required "response" argument + @self.config.web.hooks.on('request') + def on_web_request(span, request): + span.set_tag('web.request', request) + + # Create our span + span = self.tracer.start_span('web.request') + assert 'web.request' not in span.meta + + # Emit the span + # DEV: This also asserts that no exception was raised + self.config.web.hooks._emit('request', span, 'request', response='response') + + # Assert we did not update the span + assert 'web.request' not in span.meta + + def test_settings_multiple_hooks(self): + """ + When calling `Hooks._emit()` + When there are multiple hooks registered + we do not raise an exception + """ + # Setup our hooks + @self.config.web.hooks.on('request') + def on_web_request(span): + span.set_tag('web.request', '/') + + @self.config.web.hooks.on('request') + def on_web_request2(span): + span.set_tag('web.status', 200) + + @self.config.web.hooks.on('request') + def on_web_request3(span): + span.set_tag('web.method', 'GET') + + # Create our span + span = self.tracer.start_span('web.request') + assert 'web.request' not in span.meta + assert 'web.status' not in span.metrics + assert 'web.method' not in span.meta + + # Emit the span + self.config.web.hooks._emit('request', span) + + # Assert we updated the span as expected + assert span.get_tag('web.request') == '/' + assert span.get_metric('web.status') == 200 + assert span.get_tag('web.method') == 'GET' + + def test_settings_hook_failure(self): + """ + When calling `Hooks._emit()` + When the hook raises an exception + we do not raise an exception + """ + # Setup our failing hook + on_web_request = mock.Mock(side_effect=Exception) + self.config.web.hooks.register('request')(on_web_request) + + # Create our span + span = self.tracer.start_span('web.request') + + # Emit the span + # DEV: This is the test, to ensure no exceptions are raised + self.config.web.hooks._emit('request', span) + on_web_request.assert_called() + + def test_settings_no_hook(self): + """ + When calling `Hooks._emit()` + When no hook is registered + we do not raise an exception + """ + # Create our span + span = self.tracer.start_span('web.request') + + # Emit the span + # DEV: This is the test, to ensure no exceptions are raised + self.config.web.hooks._emit('request', span) + + def test_settings_no_span(self): + """ + When calling `Hooks._emit()` + When no span is provided + we do not raise an exception + """ + # Setup our hooks + @self.config.web.hooks.on('request') + def on_web_request(span): + span.set_tag('web.request', '/') + + # Emit the span + # DEV: This is the test, to ensure no exceptions are raised + self.config.web.hooks._emit('request', None) diff --git a/tests/test_helpers.py b/tests/test_helpers.py new file mode 100644 index 0000000000..a09b055c01 --- /dev/null +++ b/tests/test_helpers.py @@ -0,0 +1,48 @@ +import mock + +from ddtrace import helpers + +from .base import BaseTracerTestCase +from .util import override_global_tracer + + +class HelpersTestCase(BaseTracerTestCase): + """Test suite for ``ddtrace`` helpers""" + def test_correlation_identifiers(self): + # ensures the right correlation identifiers are + # returned when a Trace is active + with override_global_tracer(self.tracer): + span = self.tracer.trace('MockSpan') + active_trace_id, active_span_id = span.trace_id, span.span_id + trace_id, span_id = helpers.get_correlation_ids() + + self.assertEqual(trace_id, active_trace_id) + self.assertEqual(span_id, active_span_id) + + def test_correlation_identifiers_without_trace(self): + # ensures `None` is returned if no Traces are active + with override_global_tracer(self.tracer): + trace_id, span_id = helpers.get_correlation_ids() + + self.assertIsNone(trace_id) + self.assertIsNone(span_id) + + def test_correlation_identifiers_with_disabled_trace(self): + # ensures `None` is returned if tracer is disabled + with override_global_tracer(self.tracer): + self.tracer.enabled = False + self.tracer.trace('MockSpan') + trace_id, span_id = helpers.get_correlation_ids() + + self.assertIsNone(trace_id) + self.assertIsNone(span_id) + + def test_correlation_identifiers_missing_context(self): + # ensures we return `None` if there is no current context + self.tracer.get_call_context = mock.MagicMock(return_value=None) + + with override_global_tracer(self.tracer): + trace_id, span_id = helpers.get_correlation_ids() + + self.assertIsNone(trace_id) + self.assertIsNone(span_id) diff --git a/tests/test_hook.py b/tests/test_hook.py new file mode 100644 index 0000000000..817916a5bc --- /dev/null +++ b/tests/test_hook.py @@ -0,0 +1,180 @@ +import mock + +from ddtrace.compat import reload_module +from ddtrace.utils.hook import ( + register_post_import_hook, + deregister_post_import_hook, +) + +from tests.subprocesstest import SubprocessTestCase, run_in_subprocess + + +@run_in_subprocess +class TestHook(SubprocessTestCase): + def test_register_post_import_hook_before_import(self): + """ + Test that a hook is fired after registering. + """ + test_hook = mock.MagicMock() + register_post_import_hook('tests.utils.test_module', test_hook) + import tests.utils.test_module # noqa + test_hook.assert_called_once() + + def test_register_post_import_hook_after_import(self): + """ + Test that a hook is fired when the module is imported with an + appropriate log debug message. + """ + test_hook = mock.MagicMock() + with mock.patch('ddtrace.utils.hook.log') as log_mock: + import tests.utils.test_module # noqa + register_post_import_hook('tests.utils.test_module', test_hook) + test_hook.assert_called_once() + calls = [ + mock.call('module "%s" already imported, firing hook', "tests.utils.test_module") + ] + log_mock.debug.assert_has_calls(calls) + + def test_register_post_import_hook_reimport(self): + """ + Test that a hook is fired when the module is reimported. + """ + test_hook = mock.MagicMock() + register_post_import_hook('tests.utils.test_module', test_hook) + import tests.utils.test_module + reload_module(tests.utils.test_module) + self.assertEqual(test_hook.call_count, 2) + + def test_register_post_import_hook_multiple(self): + """ + Test that multiple hooks are fired after registering. + """ + test_hook = mock.MagicMock() + test_hook2 = mock.MagicMock() + register_post_import_hook('tests.utils.test_module', test_hook) + register_post_import_hook('tests.utils.test_module', test_hook2) + import tests.utils.test_module # noqa + test_hook.assert_called_once() + test_hook2.assert_called_once() + + def test_register_post_import_hook_different_modules(self): + """ + Test that multiple hooks hooked on different modules are fired after registering. + """ + test_hook = mock.MagicMock() + test_hook_redis = mock.MagicMock() + register_post_import_hook('tests.utils.test_module', test_hook) + register_post_import_hook('ddtrace.contrib.redis', test_hook_redis) + import tests.utils.test_module # noqa + import ddtrace.contrib.redis # noqa + test_hook.assert_called_once() + test_hook_redis.assert_called_once() + + def test_register_post_import_hook_duplicate_register(self): + """ + Test that a function can be registered as a hook twice. + """ + test_hook = mock.MagicMock() + with mock.patch('ddtrace.utils.hook.log') as log_mock: + register_post_import_hook('tests.utils.test_module', test_hook) + register_post_import_hook('tests.utils.test_module', test_hook) + import tests.utils.test_module # noqa + + self.assertEqual(log_mock.debug.mock_calls, [ + mock.call('hook "%s" already exists on module "%s"', test_hook, 'tests.utils.test_module'), + ]) + + def test_deregister_post_import_hook_no_register(self): + """ + Test that deregistering import hooks that do not exist is a no-op. + """ + def hook(): + return + + outcome = deregister_post_import_hook('tests.utils.test_module', hook) + self.assertFalse(outcome) + import tests.utils.test_module # noqa + + def test_deregister_post_import_hook_after_register(self): + """ + Test that import hooks can be deregistered after being registered. + """ + test_hook = mock.MagicMock() + register_post_import_hook('tests.utils.test_module', test_hook) + outcome = deregister_post_import_hook('tests.utils.test_module', test_hook) + self.assertTrue(outcome) + import tests.utils.test_module # noqa + self.assertEqual(test_hook.call_count, 0, 'hook has been deregistered and should have been removed') + + def test_deregister_post_import_hook_after_register_multiple_all(self): + """ + Test that multiple import hooks can be deregistered. + """ + test_hook = mock.MagicMock() + test_hook2 = mock.MagicMock() + register_post_import_hook('tests.utils.test_module', test_hook) + register_post_import_hook('tests.utils.test_module', test_hook2) + + outcome = deregister_post_import_hook('tests.utils.test_module', test_hook) + self.assertTrue(outcome) + outcome = deregister_post_import_hook('tests.utils.test_module', test_hook2) + self.assertTrue(outcome) + import tests.utils.test_module # noqa + self.assertEqual(test_hook.call_count, 0, 'hook has been deregistered and should be removed') + self.assertEqual(test_hook2.call_count, 0, 'hook has been deregistered and should be removed') + + def test_deregister_post_import_hook_after_register_multiple(self): + """ + Test that only the specified import hook can be deregistered after being registered. + """ + # Enforce a spec so that hasattr doesn't vacuously return True. + test_hook = mock.MagicMock(spec=[]) + test_hook2 = mock.MagicMock(spec=[]) + register_post_import_hook('tests.utils.test_module', test_hook) + register_post_import_hook('tests.utils.test_module', test_hook2) + + outcome = deregister_post_import_hook('tests.utils.test_module', test_hook) + self.assertTrue(outcome) + import tests.utils.test_module # noqa + self.assertEqual(test_hook.call_count, 0, 'hook has been deregistered and should be removed') + self.assertEqual(test_hook2.call_count, 1, 'hook should have been called') + + def test_deregister_post_import_hook_after_import(self): + """ + Test that import hooks can be deregistered after being registered. + """ + test_hook = mock.MagicMock() + register_post_import_hook('tests.utils.test_module', test_hook) + + import tests.utils.test_module + test_hook.assert_called_once() + outcome = deregister_post_import_hook('tests.utils.test_module', test_hook) + self.assertTrue(outcome) + reload_module(tests.utils.test_module) + self.assertEqual(test_hook.call_count, 1, 'hook should only be called once') + + def test_hook_exception(self): + """ + Test that when a hook throws an exception that it is caught and logged + as a warning. + """ + def test_hook(module): + raise Exception('test_hook_failed') + register_post_import_hook('tests.utils.test_module', test_hook) + + with mock.patch('ddtrace.utils.hook.log') as log_mock: + import tests.utils.test_module # noqa + calls = [ + mock.call('hook "%s" for module "%s" failed', + test_hook, 'tests.utils.test_module', exc_info=True) + ] + log_mock.warning.assert_has_calls(calls) + + def test_hook_called_with_module(self): + """ + Test that a hook is called with the module that it is hooked on. + """ + def test_hook(module): + self.assertTrue(hasattr(module, 'A')) + register_post_import_hook('tests.utils.test_module', test_hook) + import tests.utils.test_module # noqa diff --git a/tests/test_instance_config.py b/tests/test_instance_config.py new file mode 100644 index 0000000000..871906f1b3 --- /dev/null +++ b/tests/test_instance_config.py @@ -0,0 +1,130 @@ +from unittest import TestCase + +from ddtrace import config +from ddtrace.pin import Pin +from ddtrace.settings import IntegrationConfig + + +class InstanceConfigTestCase(TestCase): + """TestCase for the Configuration API that is used to define + global settings and for each `Pin` instance. + """ + def setUp(self): + class Klass(object): + """Helper class where a Pin is always attached""" + pass + + # define the Class and attach a Pin to it + self.Klass = Klass + Pin(service='metrics').onto(Klass) + + def test_configuration_get_from(self): + # ensure a dictionary is returned + cfg = config.get_from(self.Klass) + assert isinstance(cfg, dict) + + def test_configuration_get_from_twice(self): + # ensure the configuration is the same if `get_from` is used + # in the same instance + instance = self.Klass() + cfg1 = config.get_from(instance) + cfg2 = config.get_from(instance) + assert cfg1 is cfg2 + + def test_configuration_set(self): + # ensure the configuration can be updated in the Pin + instance = self.Klass() + cfg = config.get_from(instance) + cfg['distributed_tracing'] = True + assert config.get_from(instance)['distributed_tracing'] is True + + def test_global_configuration_inheritance(self): + # ensure global configuration is inherited when it's set + cfg = config.get_from(self.Klass) + cfg['distributed_tracing'] = True + instance = self.Klass() + assert config.get_from(instance)['distributed_tracing'] is True + + def test_configuration_override_instance(self): + # ensure instance configuration doesn't override global settings + global_cfg = config.get_from(self.Klass) + global_cfg['distributed_tracing'] = True + instance = self.Klass() + cfg = config.get_from(instance) + cfg['distributed_tracing'] = False + assert config.get_from(self.Klass)['distributed_tracing'] is True + assert config.get_from(instance)['distributed_tracing'] is False + + def test_service_name_for_pin(self): + # ensure for backward compatibility that changing the service + # name via the Pin object also updates integration config + Pin(service='intake').onto(self.Klass) + instance = self.Klass() + cfg = config.get_from(instance) + assert cfg['service_name'] == 'intake' + + def test_service_attribute_priority(self): + # ensure the `service` arg has highest priority over configuration + # for backward compatibility + global_config = { + 'service_name': 'primary_service', + } + Pin(service='service', _config=global_config).onto(self.Klass) + instance = self.Klass() + cfg = config.get_from(instance) + assert cfg['service_name'] == 'service' + + def test_configuration_copy(self): + # ensure when a Pin is used, the given configuration is copied + global_config = { + 'service_name': 'service', + } + Pin(service='service', _config=global_config).onto(self.Klass) + instance = self.Klass() + cfg = config.get_from(instance) + cfg['service_name'] = 'metrics' + assert global_config['service_name'] == 'service' + + def test_configuration_copy_upside_down(self): + # ensure when a Pin is created, it does not copy the given configuration + # until it's used for at least once + global_config = { + 'service_name': 'service', + } + Pin(service='service', _config=global_config).onto(self.Klass) + # override the global config: users do that before using the integration + global_config['service_name'] = 'metrics' + # use the Pin via `get_from` + instance = self.Klass() + cfg = config.get_from(instance) + # it should have users updated value + assert cfg['service_name'] == 'metrics' + + def test_config_attr_and_key(self): + """ + This is a regression test for when mixing attr attribute and key + access we would set the value of the attribute but not the key + """ + integration_config = IntegrationConfig(config, 'test') + + # Our key and attribute do not exist + self.assertFalse(hasattr(integration_config, 'distributed_tracing')) + self.assertNotIn('distributed_tracing', integration_config) + + # Initially set and access + integration_config['distributed_tracing'] = True + self.assertTrue(integration_config['distributed_tracing']) + self.assertTrue(integration_config.get('distributed_tracing')) + self.assertTrue(integration_config.distributed_tracing) + + # Override by key and access + integration_config['distributed_tracing'] = False + self.assertFalse(integration_config['distributed_tracing']) + self.assertFalse(integration_config.get('distributed_tracing')) + self.assertFalse(integration_config.distributed_tracing) + + # Override by attr and access + integration_config.distributed_tracing = None + self.assertIsNone(integration_config['distributed_tracing']) + self.assertIsNone(integration_config.get('distributed_tracing')) + self.assertIsNone(integration_config.distributed_tracing) diff --git a/tests/test_integration.py b/tests/test_integration.py new file mode 100644 index 0000000000..8752413342 --- /dev/null +++ b/tests/test_integration.py @@ -0,0 +1,459 @@ +import os +import json +import logging +import mock +import ddtrace + +from unittest import TestCase, skip, skipUnless + +from ddtrace.api import API, Response +from ddtrace.ext import http +from ddtrace.filters import FilterRequestsOnUrl +from ddtrace.constants import FILTERS_KEY +from ddtrace.tracer import Tracer +from ddtrace.encoding import JSONEncoder, MsgpackEncoder, get_encoder +from ddtrace.compat import httplib, PYTHON_INTERPRETER, PYTHON_VERSION +from ddtrace.internal.runtime.container import CGroupInfo +from ddtrace.vendor import monotonic +from ddtrace.vendor import msgpack +from tests.test_tracer import get_dummy_tracer + + +class MockedLogHandler(logging.Handler): + """Record log messages to verify error logging logic""" + + def __init__(self, *args, **kwargs): + self.messages = {'debug': [], 'info': [], 'warning': [], 'error': [], 'critical': []} + super(MockedLogHandler, self).__init__(*args, **kwargs) + + def emit(self, record): + self.acquire() + try: + self.messages[record.levelname.lower()].append(record.getMessage()) + finally: + self.release() + + +class FlawedAPI(API): + """ + Deliberately report data with an incorrect method to trigger a 4xx response + """ + def _put(self, endpoint, data, count=0): + conn = httplib.HTTPConnection(self.hostname, self.port) + conn.request('HEAD', endpoint, data, self._headers) + return Response.from_http_response(conn.getresponse()) + + +@skipUnless( + os.environ.get('TEST_DATADOG_INTEGRATION', False), + 'You should have a running trace agent and set TEST_DATADOG_INTEGRATION=1 env variable' +) +class TestWorkers(TestCase): + """ + Ensures that a workers interacts correctly with the main thread. These are part + of integration tests so real calls are triggered. + """ + def _decode(self, payload): + """ + Helper function that decodes data based on the given Encoder. + """ + if isinstance(self.api._encoder, JSONEncoder): + return json.loads(payload) + elif isinstance(self.api._encoder, MsgpackEncoder): + return msgpack.unpackb(payload, encoding='utf-8') + + def setUp(self): + """ + Create a tracer with running workers, while spying the ``_put()`` method to + keep trace of triggered API calls. + """ + # create a new tracer + self.tracer = Tracer() + # spy the send() method + self.api = self.tracer.writer.api + self.api._put = mock.Mock(self.api._put, wraps=self.api._put) + + def tearDown(self): + """ + Stop running worker + """ + self._wait_thread_flush() + + def _wait_thread_flush(self): + """ + Helper that waits for the thread flush + """ + self.tracer.writer.stop() + self.tracer.writer.join(None) + + def _get_endpoint_payload(self, calls, endpoint): + """ + Helper to retrieve the endpoint call from a concurrent + trace or service call. + """ + for call, _ in calls: + if endpoint in call[0]: + return call[0], self._decode(call[1]) + + return None, None + + @skipUnless( + os.environ.get('TEST_DATADOG_INTEGRATION_UDS', False), + 'You should have a running trace agent on a socket and set TEST_DATADOG_INTEGRATION_UDS=1 env variable' + ) + def test_worker_single_trace_uds(self): + self.tracer.configure(uds_path='/tmp/ddagent/trace.sock') + # Write a first trace so we get a _worker + self.tracer.trace('client.testing').finish() + worker = self.tracer.writer + worker._log_error_status = mock.Mock( + worker._log_error_status, wraps=worker._log_error_status, + ) + self.tracer.trace('client.testing').finish() + + # one send is expected + self._wait_thread_flush() + # Check that no error was logged + assert worker._log_error_status.call_count == 0 + + def test_worker_single_trace_uds_wrong_socket_path(self): + self.tracer.configure(uds_path='/tmp/ddagent/nosockethere') + # Write a first trace so we get a _worker + self.tracer.trace('client.testing').finish() + worker = self.tracer.writer + worker._log_error_status = mock.Mock( + worker._log_error_status, wraps=worker._log_error_status, + ) + self.tracer.trace('client.testing').finish() + + # one send is expected + self._wait_thread_flush() + # Check that no error was logged + assert worker._log_error_status.call_count == 1 + + def test_worker_single_trace(self): + # create a trace block and send it using the transport system + tracer = self.tracer + tracer.trace('client.testing').finish() + + # one send is expected + self._wait_thread_flush() + assert self.api._put.call_count == 1 + # check and retrieve the right call + endpoint, payload = self._get_endpoint_payload(self.api._put.call_args_list, '/v0.4/traces') + assert endpoint == '/v0.4/traces' + assert len(payload) == 1 + assert len(payload[0]) == 1 + assert payload[0][0]['name'] == 'client.testing' + + # DEV: If we can make the writer flushing deterministic for the case of tests, then we can re-enable this + @skip('Writer flush intervals are impossible to time correctly to make this test not flaky') + def test_worker_multiple_traces(self): + # make a single send() if multiple traces are created before the flush interval + tracer = self.tracer + tracer.trace('client.testing').finish() + tracer.trace('client.testing').finish() + + # one send is expected + self._wait_thread_flush() + assert self.api._put.call_count == 1 + # check and retrieve the right call + endpoint, payload = self._get_endpoint_payload(self.api._put.call_args_list, '/v0.4/traces') + assert endpoint == '/v0.4/traces' + assert len(payload) == 2 + assert len(payload[0]) == 1 + assert len(payload[1]) == 1 + assert payload[0][0]['name'] == 'client.testing' + assert payload[1][0]['name'] == 'client.testing' + + def test_worker_single_trace_multiple_spans(self): + # make a single send() if a single trace with multiple spans is created before the flush + tracer = self.tracer + parent = tracer.trace('client.testing') + tracer.trace('client.testing').finish() + parent.finish() + + # one send is expected + self._wait_thread_flush() + assert self.api._put.call_count == 1 + # check and retrieve the right call + endpoint, payload = self._get_endpoint_payload(self.api._put.call_args_list, '/v0.4/traces') + assert endpoint == '/v0.4/traces' + assert len(payload) == 1 + assert len(payload[0]) == 2 + assert payload[0][0]['name'] == 'client.testing' + assert payload[0][1]['name'] == 'client.testing' + + def test_worker_http_error_logging(self): + # Tests the logging http error logic + tracer = self.tracer + self.tracer.writer.api = FlawedAPI(Tracer.DEFAULT_HOSTNAME, Tracer.DEFAULT_PORT) + tracer.trace('client.testing').finish() + + log = logging.getLogger('ddtrace.internal.writer') + log_handler = MockedLogHandler(level='DEBUG') + log.addHandler(log_handler) + + self._wait_thread_flush() + assert tracer.writer._last_error_ts < monotonic.monotonic() + + logged_errors = log_handler.messages['error'] + assert len(logged_errors) == 1 + assert 'Failed to send traces to Datadog Agent at http://localhost:8126: ' \ + 'HTTP error status 400, reason Bad Request, message Content-Type:' \ + in logged_errors[0] + + def test_worker_filter_request(self): + self.tracer.configure(settings={FILTERS_KEY: [FilterRequestsOnUrl(r'http://example\.com/health')]}) + # spy the send() method + self.api = self.tracer.writer.api + self.api._put = mock.Mock(self.api._put, wraps=self.api._put) + + span = self.tracer.trace('testing.filteredurl') + span.set_tag(http.URL, 'http://example.com/health') + span.finish() + span = self.tracer.trace('testing.nonfilteredurl') + span.set_tag(http.URL, 'http://example.com/api/resource') + span.finish() + self._wait_thread_flush() + + # Only the second trace should have been sent + assert self.api._put.call_count == 1 + # check and retrieve the right call + endpoint, payload = self._get_endpoint_payload(self.api._put.call_args_list, '/v0.4/traces') + assert endpoint == '/v0.4/traces' + assert len(payload) == 1 + assert payload[0][0]['name'] == 'testing.nonfilteredurl' + + +@skipUnless( + os.environ.get('TEST_DATADOG_INTEGRATION', False), + 'You should have a running trace agent and set TEST_DATADOG_INTEGRATION=1 env variable' +) +class TestAPITransport(TestCase): + """ + Ensures that traces are properly sent to a local agent. These are part + of integration tests so real calls are triggered and you have to execute + a real trace-agent to let them pass. + """ + @mock.patch('ddtrace.internal.runtime.container.get_container_info') + def setUp(self, get_container_info): + """ + Create a tracer without workers, while spying the ``send()`` method + """ + # Mock the container id we use for making requests + get_container_info.return_value = CGroupInfo(container_id='test-container-id') + + # create a new API object to test the transport using synchronous calls + self.tracer = get_dummy_tracer() + self.api_json = API('localhost', 8126, encoder=JSONEncoder()) + self.api_msgpack = API('localhost', 8126, encoder=MsgpackEncoder()) + + @mock.patch('ddtrace.api.httplib.HTTPConnection') + def test_send_presampler_headers(self, mocked_http): + # register a single trace with a span and send them to the trace agent + self.tracer.trace('client.testing').finish() + trace = self.tracer.writer.pop() + traces = [trace] + + # make a call and retrieve the `conn` Mock object + self.api_msgpack.send_traces(traces) + request_call = mocked_http.return_value.request + assert request_call.call_count == 1 + + # retrieve the headers from the mocked request call + expected_headers = { + 'Datadog-Container-Id': 'test-container-id', # mocked in setUp() + 'Datadog-Meta-Lang': 'python', + 'Datadog-Meta-Lang-Interpreter': PYTHON_INTERPRETER, + 'Datadog-Meta-Lang-Version': PYTHON_VERSION, + 'Datadog-Meta-Tracer-Version': ddtrace.__version__, + 'X-Datadog-Trace-Count': '1', + 'Content-Type': 'application/msgpack', + } + params, _ = request_call.call_args_list[0] + headers = params[3] + assert len(expected_headers) == len(headers) + for k, v in expected_headers.items(): + assert v == headers[k] + + def _send_traces_and_check(self, traces, nresponses=1): + # test JSON encoder + responses = self.api_json.send_traces(traces) + assert len(responses) == nresponses + for response in responses: + assert response.status == 200 + + # test Msgpack encoder + responses = self.api_msgpack.send_traces(traces) + assert len(responses) == nresponses + for response in responses: + assert response.status == 200 + + def test_send_single_trace(self): + # register a single trace with a span and send them to the trace agent + self.tracer.trace('client.testing').finish() + trace = self.tracer.writer.pop() + traces = [trace] + + self._send_traces_and_check(traces) + + def test_send_many_traces(self): + # register a single trace with a span and send them to the trace agent + self.tracer.trace('client.testing').finish() + trace = self.tracer.writer.pop() + # 30k is a right number to have both json and msgpack send 2 payload :) + traces = [trace] * 30000 + + self._send_traces_and_check(traces, 2) + + def test_send_single_with_wrong_errors(self): + # if the error field is set to True, it must be cast as int so + # that the agent decoder handles that properly without providing + # a decoding error + span = self.tracer.trace('client.testing') + span.error = True + span.finish() + trace = self.tracer.writer.pop() + traces = [trace] + + self._send_traces_and_check(traces) + + def test_send_multiple_traces(self): + # register some traces and send them to the trace agent + self.tracer.trace('client.testing').finish() + trace_1 = self.tracer.writer.pop() + self.tracer.trace('client.testing').finish() + trace_2 = self.tracer.writer.pop() + traces = [trace_1, trace_2] + + self._send_traces_and_check(traces) + + def test_send_single_trace_multiple_spans(self): + # register some traces and send them to the trace agent + with self.tracer.trace('client.testing'): + self.tracer.trace('client.testing').finish() + trace = self.tracer.writer.pop() + traces = [trace] + + self._send_traces_and_check(traces) + + def test_send_multiple_traces_multiple_spans(self): + # register some traces and send them to the trace agent + with self.tracer.trace('client.testing'): + self.tracer.trace('client.testing').finish() + trace_1 = self.tracer.writer.pop() + + with self.tracer.trace('client.testing'): + self.tracer.trace('client.testing').finish() + trace_2 = self.tracer.writer.pop() + + traces = [trace_1, trace_2] + + self._send_traces_and_check(traces) + + +@skipUnless( + os.environ.get('TEST_DATADOG_INTEGRATION', False), + 'You should have a running trace agent and set TEST_DATADOG_INTEGRATION=1 env variable' +) +class TestAPIDowngrade(TestCase): + """ + Ensures that if the tracing client found an earlier trace agent, + it will downgrade the current connection to a stable API version + """ + @skip('msgpack package split breaks this test; it works for newer version of msgpack') + def test_get_encoder_default(self): + # get_encoder should return MsgpackEncoder instance if + # msgpack and the CPP implementaiton are available + encoder = get_encoder() + assert isinstance(encoder, MsgpackEncoder) + + @mock.patch('ddtrace.encoding.MSGPACK_ENCODING', False) + def test_get_encoder_fallback(self): + # get_encoder should return JSONEncoder instance if + # msgpack or the CPP implementaiton, are not available + encoder = get_encoder() + assert isinstance(encoder, JSONEncoder) + + @skip('msgpack package split breaks this test; it works for newer version of msgpack') + def test_downgrade_api(self): + # make a call to a not existing endpoint, downgrades + # the current API to a stable one + tracer = get_dummy_tracer() + tracer.trace('client.testing').finish() + trace = tracer.writer.pop() + + # the encoder is right but we're targeting an API + # endpoint that is not available + api = API('localhost', 8126) + api._traces = '/v0.0/traces' + assert isinstance(api._encoder, MsgpackEncoder) + + # after the call, we downgrade to a working endpoint + response = api.send_traces([trace]) + assert response + assert response.status == 200 + assert isinstance(api._encoder, JSONEncoder) + + +@skipUnless( + os.environ.get('TEST_DATADOG_INTEGRATION', False), + 'You should have a running trace agent and set TEST_DATADOG_INTEGRATION=1 env variable' +) +class TestRateByService(TestCase): + """ + Check we get feedback from the agent and we're able to process it. + """ + def setUp(self): + """ + Create a tracer without workers, while spying the ``send()`` method + """ + # create a new API object to test the transport using synchronous calls + self.tracer = get_dummy_tracer() + self.api_json = API('localhost', 8126, encoder=JSONEncoder(), priority_sampling=True) + self.api_msgpack = API('localhost', 8126, encoder=MsgpackEncoder(), priority_sampling=True) + + def test_send_single_trace(self): + # register a single trace with a span and send them to the trace agent + self.tracer.trace('client.testing').finish() + trace = self.tracer.writer.pop() + traces = [trace] + + # [TODO:christian] when CI has an agent that is able to process the v0.4 + # endpoint, add a check to: + # - make sure the output is a valid JSON + # - make sure the priority sampler (if enabled) is updated + + # test JSON encoder + responses = self.api_json.send_traces(traces) + assert len(responses) == 1 + assert responses[0].status == 200 + assert responses[0].get_json() == dict(rate_by_service={'service:,env:': 1}) + + # test Msgpack encoder + responses = self.api_msgpack.send_traces(traces) + assert len(responses) == 1 + assert responses[0].status == 200 + assert responses[0].get_json() == dict(rate_by_service={'service:,env:': 1}) + + +@skipUnless( + os.environ.get('TEST_DATADOG_INTEGRATION', False), + 'You should have a running trace agent and set TEST_DATADOG_INTEGRATION=1 env variable' +) +class TestConfigure(TestCase): + """ + Ensures that when calling configure without specifying hostname and port, + previous overrides have been kept. + """ + def test_configure_keeps_api_hostname_and_port(self): + tracer = Tracer() # use real tracer with real api + assert 'localhost' == tracer.writer.api.hostname + assert 8126 == tracer.writer.api.port + tracer.configure(hostname='127.0.0.1', port=8127) + assert '127.0.0.1' == tracer.writer.api.hostname + assert 8127 == tracer.writer.api.port + tracer.configure(priority_sampling=True) + assert '127.0.0.1' == tracer.writer.api.hostname + assert 8127 == tracer.writer.api.port diff --git a/tests/test_payload.py b/tests/test_payload.py new file mode 100644 index 0000000000..fc2cd25e6b --- /dev/null +++ b/tests/test_payload.py @@ -0,0 +1,111 @@ +import math + +from ddtrace.encoding import get_encoder, JSONEncoder +from ddtrace.payload import Payload, PayloadFull +from ddtrace.span import Span + +from .base import BaseTracerTestCase + +import pytest + + +class PayloadTestCase(BaseTracerTestCase): + def test_init(self): + """ + When calling `Payload.init` + With an encoder + We use that encoder + With no encoder + We use the default encoder + """ + default_encoder_type = type(get_encoder()) + + payload = Payload() + self.assertIsInstance(payload.encoder, default_encoder_type) + + json_encoder = JSONEncoder() + payload = Payload(encoder=json_encoder) + self.assertEqual(payload.encoder, json_encoder) + + def test_add_trace(self): + """ + When calling `Payload.add_trace` + With a falsey value + Nothing is added to the payload + With a trace + We encode and add the trace to the payload + We increment the payload size by the expected amount + """ + payload = Payload() + + # Add falsey traces + for val in (False, None, 0, '', [], dict()): + payload.add_trace(val) + self.assertEqual(payload.length, 0) + self.assertTrue(payload.empty) + + # Add a single trace to the payload + trace = [Span(self.tracer, name='root.span'), Span(self.tracer, name='child.span')] + payload.add_trace(trace) + + self.assertEqual(payload.length, 1) + self.assertFalse(payload.empty) + + def test_get_payload(self): + """ + When calling `Payload.get_payload` + With no traces + We return the appropriate data + With traces + We return the appropriate data + """ + payload = Payload() + + # No traces + self.assertTrue(payload.empty) + encoded_data = payload.get_payload() + decoded_data = payload.encoder.decode(encoded_data) + self.assertEqual(decoded_data, []) + + # Add traces to the payload + for _ in range(5): + trace = [Span(self.tracer, name='root.span'), Span(self.tracer, name='child.span')] + payload.add_trace(trace) + + self.assertEqual(payload.length, 5) + self.assertFalse(payload.empty) + + # Assert the payload generated from Payload + encoded_data = payload.get_payload() + decoded_data = payload.encoder.decode(encoded_data) + self.assertEqual(len(decoded_data), 5) + for trace in decoded_data: + self.assertEqual(len(trace), 2) + self.assertEqual(trace[0][b'name'], b'root.span') + self.assertEqual(trace[1][b'name'], b'child.span') + + def test_full(self): + payload = Payload() + + # Empty + self.assertTrue(payload.empty) + + # Trace and it's size in bytes + trace = [Span(self.tracer, 'root.span'), Span(self.tracer, 'child.span')] + trace_size = len(payload.encoder.encode_trace(trace)) + + # Number of traces before we hit the max size limit and are considered full + num_traces = int(math.floor(payload.max_payload_size / trace_size)) + + # Add the traces + for _ in range(num_traces): + payload.add_trace(trace) + + # Just confirm + self.assertEqual(payload.length, num_traces) + + with pytest.raises(PayloadFull): + payload.add_trace(trace) + + # Just confirm again + self.assertEqual(payload.length, num_traces) diff --git a/tests/test_pin.py b/tests/test_pin.py new file mode 100644 index 0000000000..b8ccdc0eb7 --- /dev/null +++ b/tests/test_pin.py @@ -0,0 +1,192 @@ +from unittest import TestCase + +import pytest + +from ddtrace import Pin + + +class PinTestCase(TestCase): + """TestCase for the `Pin` object that is used when an object is wrapped + with our tracing functionalities. + """ + def setUp(self): + # define a simple class object + class Obj(object): + pass + + self.Obj = Obj + + def test_pin(self): + # ensure a Pin can be attached to an instance + obj = self.Obj() + pin = Pin(service='metrics') + pin.onto(obj) + + got = Pin.get_from(obj) + assert got.service == pin.service + assert got is pin + + def test_pin_find(self): + # ensure Pin will find the first available pin + + # Override service + obj_a = self.Obj() + pin = Pin(service='service-a') + pin.onto(obj_a) + + # Override service + obj_b = self.Obj() + pin = Pin(service='service-b') + pin.onto(obj_b) + + # No Pin set + obj_c = self.Obj() + + # We find the first pin (obj_b) + pin = Pin._find(obj_c, obj_b, obj_a) + assert pin is not None + assert pin.service == 'service-b' + + # We find the first pin (obj_a) + pin = Pin._find(obj_a, obj_b, obj_c) + assert pin is not None + assert pin.service == 'service-a' + + # We don't find a pin if none is there + pin = Pin._find(obj_c, obj_c, obj_c) + assert pin is None + + def test_cant_pin_with_slots(self): + # ensure a Pin can't be attached if the __slots__ is defined + class Obj(object): + __slots__ = ['value'] + + obj = Obj() + obj.value = 1 + + Pin(service='metrics').onto(obj) + got = Pin.get_from(obj) + assert got is None + + def test_cant_modify(self): + # ensure a Pin is immutable once initialized + pin = Pin(service='metrics') + with pytest.raises(AttributeError): + pin.service = 'intake' + + def test_copy(self): + # ensure a Pin is copied when using the clone methods + p1 = Pin(service='metrics', app='flask', tags={'key': 'value'}) + p2 = p1.clone(service='intake') + # values are the same + assert p1.service == 'metrics' + assert p2.service == 'intake' + assert p1.app == 'flask' + assert p2.app == 'flask' + # but it's a copy + assert p1.tags is not p2.tags + assert p1._config is not p2._config + # of almost everything + assert p1.tracer is p2.tracer + + def test_none(self): + # ensure get_from returns None if a Pin is not available + assert Pin.get_from(None) is None + + def test_repr(self): + # ensure the service name is in the string representation of the Pin + pin = Pin(service='metrics') + assert 'metrics' in str(pin) + + def test_override(self): + # ensure Override works for an instance object + class A(object): + pass + + Pin(service='metrics', app='flask').onto(A) + a = A() + Pin.override(a, app='django') + assert Pin.get_from(a).app == 'django' + assert Pin.get_from(a).service == 'metrics' + + b = A() + assert Pin.get_from(b).app == 'flask' + assert Pin.get_from(b).service == 'metrics' + + def test_override_missing(self): + # ensure overriding an instance doesn't override the Class + class A(object): + pass + + a = A() + assert Pin.get_from(a) is None + Pin.override(a, service='metrics') + assert Pin.get_from(a).service == 'metrics' + + b = A() + assert Pin.get_from(b) is None + + def test_pin_config(self): + # ensure `Pin` has a configuration object that can be modified + obj = self.Obj() + Pin.override(obj, service='metrics') + pin = Pin.get_from(obj) + assert pin._config is not None + pin._config['distributed_tracing'] = True + assert pin._config['distributed_tracing'] is True + + def test_pin_config_is_a_copy(self): + # ensure that when a `Pin` is cloned, the config is a copy + obj = self.Obj() + Pin.override(obj, service='metrics') + p1 = Pin.get_from(obj) + assert p1._config is not None + p1._config['distributed_tracing'] = True + + Pin.override(obj, service='intake') + p2 = Pin.get_from(obj) + assert p2._config is not None + p2._config['distributed_tracing'] = False + + assert p1._config['distributed_tracing'] is True + assert p2._config['distributed_tracing'] is False + + def test_pin_does_not_override_global(self): + # ensure that when a `Pin` is created from a class, the specific + # instance doesn't override the global one + class A(object): + pass + + Pin.override(A, service='metrics') + global_pin = Pin.get_from(A) + global_pin._config['distributed_tracing'] = True + + a = A() + pin = Pin.get_from(a) + assert pin is not None + assert pin._config['distributed_tracing'] is True + pin._config['distributed_tracing'] = False + + assert global_pin._config['distributed_tracing'] is True + assert pin._config['distributed_tracing'] is False + + def test_pin_does_not_override_global_with_new_instance(self): + # ensure that when a `Pin` is created from a class, the specific + # instance doesn't override the global one, even if only the + # `onto()` API has been used + class A(object): + pass + + pin = Pin(service='metrics') + pin.onto(A) + global_pin = Pin.get_from(A) + global_pin._config['distributed_tracing'] = True + + a = A() + pin = Pin.get_from(a) + assert pin is not None + assert pin._config['distributed_tracing'] is True + pin._config['distributed_tracing'] = False + + assert global_pin._config['distributed_tracing'] is True + assert pin._config['distributed_tracing'] is False diff --git a/tests/test_sampler.py b/tests/test_sampler.py new file mode 100644 index 0000000000..ab8e42629a --- /dev/null +++ b/tests/test_sampler.py @@ -0,0 +1,879 @@ +from __future__ import division +import contextlib +import mock +import re +import unittest + +import pytest + +from ddtrace.compat import iteritems +from ddtrace.constants import SAMPLING_PRIORITY_KEY, SAMPLE_RATE_METRIC_KEY +from ddtrace.constants import SAMPLING_AGENT_DECISION, SAMPLING_RULE_DECISION, SAMPLING_LIMIT_DECISION +from ddtrace.ext.priority import AUTO_KEEP, AUTO_REJECT +from ddtrace.internal.rate_limiter import RateLimiter +from ddtrace.sampler import DatadogSampler, SamplingRule +from ddtrace.sampler import RateSampler, AllSampler, RateByServiceSampler +from ddtrace.span import Span + +from .utils import override_env +from .test_tracer import get_dummy_tracer + + +@pytest.fixture +def dummy_tracer(): + return get_dummy_tracer() + + +def assert_sampling_decision_tags(span, agent=None, limit=None, rule=None): + assert span.get_metric(SAMPLING_AGENT_DECISION) == agent + assert span.get_metric(SAMPLING_LIMIT_DECISION) == limit + assert span.get_metric(SAMPLING_RULE_DECISION) == rule + + +def create_span(tracer=None, name='test.span', meta=None, *args, **kwargs): + tracer = tracer or get_dummy_tracer() + if 'context' not in kwargs: + kwargs['context'] = tracer.get_call_context() + span = Span(tracer=tracer, name=name, *args, **kwargs) + if meta: + span.set_tags(meta) + return span + + +class RateSamplerTest(unittest.TestCase): + + def test_set_sample_rate(self): + sampler = RateSampler() + assert sampler.sample_rate == 1.0 + + for rate in [0.001, 0.01, 0.1, 0.25, 0.5, 0.75, 0.99999999, 1.0, 1]: + sampler.set_sample_rate(rate) + assert sampler.sample_rate == float(rate) + + sampler.set_sample_rate(str(rate)) + assert sampler.sample_rate == float(rate) + + def test_set_sample_rate_str(self): + sampler = RateSampler() + sampler.set_sample_rate('0.5') + assert sampler.sample_rate == 0.5 + + def test_sample_rate_deviation(self): + for sample_rate in [0.1, 0.25, 0.5, 1]: + tracer = get_dummy_tracer() + writer = tracer.writer + + tracer.sampler = RateSampler(sample_rate) + + iterations = int(1e4 / sample_rate) + + for i in range(iterations): + span = tracer.trace(i) + span.finish() + + samples = writer.pop() + + # We must have at least 1 sample, check that it has its sample rate properly assigned + assert samples[0].get_metric(SAMPLE_RATE_METRIC_KEY) == sample_rate + + # Less than 5% deviation when 'enough' iterations (arbitrary, just check if it converges) + deviation = abs(len(samples) - (iterations * sample_rate)) / (iterations * sample_rate) + assert deviation < 0.05, 'Deviation too high %f with sample_rate %f' % (deviation, sample_rate) + + def test_deterministic_behavior(self): + """ Test that for a given trace ID, the result is always the same """ + tracer = get_dummy_tracer() + writer = tracer.writer + + tracer.sampler = RateSampler(0.5) + + for i in range(10): + span = tracer.trace(i) + span.finish() + + samples = writer.pop() + assert len(samples) <= 1, 'there should be 0 or 1 spans' + sampled = (1 == len(samples)) + for j in range(10): + other_span = Span(tracer, i, trace_id=span.trace_id) + assert ( + sampled == tracer.sampler.sample(other_span) + ), 'sampling should give the same result for a given trace_id' + + +class RateByServiceSamplerTest(unittest.TestCase): + def test_default_key(self): + assert ( + 'service:,env:' == RateByServiceSampler._default_key + ), 'default key should correspond to no service and no env' + + def test_key(self): + assert RateByServiceSampler._default_key == RateByServiceSampler._key() + assert 'service:mcnulty,env:' == RateByServiceSampler._key(service='mcnulty') + assert 'service:,env:test' == RateByServiceSampler._key(env='test') + assert 'service:mcnulty,env:test' == RateByServiceSampler._key(service='mcnulty', env='test') + assert 'service:mcnulty,env:test' == RateByServiceSampler._key('mcnulty', 'test') + + def test_sample_rate_deviation(self): + for sample_rate in [0.1, 0.25, 0.5, 1]: + tracer = get_dummy_tracer() + writer = tracer.writer + tracer.configure(sampler=AllSampler()) + # We need to set the writer because tracer.configure overrides it, + # indeed, as we enable priority sampling, we must ensure the writer + # is priority sampling aware and pass it a reference on the + # priority sampler to send the feedback it gets from the agent + assert writer != tracer.writer, 'writer should have been updated by configure' + tracer.writer = writer + tracer.priority_sampler.set_sample_rate(sample_rate) + + iterations = int(1e4 / sample_rate) + + for i in range(iterations): + span = tracer.trace(i) + span.finish() + + samples = writer.pop() + samples_with_high_priority = 0 + for sample in samples: + if sample.get_metric(SAMPLING_PRIORITY_KEY) is not None: + if sample.get_metric(SAMPLING_PRIORITY_KEY) > 0: + samples_with_high_priority += 1 + else: + assert ( + 0 == sample.get_metric(SAMPLING_PRIORITY_KEY) + ), 'when priority sampling is on, priority should be 0 when trace is to be dropped' + assert_sampling_decision_tags(sample, agent=sample_rate) + # We must have at least 1 sample, check that it has its sample rate properly assigned + assert samples[0].get_metric(SAMPLE_RATE_METRIC_KEY) is None + + # Less than 5% deviation when 'enough' iterations (arbitrary, just check if it converges) + deviation = abs(samples_with_high_priority - (iterations * sample_rate)) / (iterations * sample_rate) + assert deviation < 0.05, 'Deviation too high %f with sample_rate %f' % (deviation, sample_rate) + + def test_update_rate_by_service_sample_rates(self): + cases = [ + { + 'service:,env:': 1, + }, + { + 'service:,env:': 1, + 'service:mcnulty,env:dev': 0.33, + 'service:postgres,env:dev': 0.7, + }, + { + 'service:,env:': 1, + 'service:mcnulty,env:dev': 0.25, + 'service:postgres,env:dev': 0.5, + 'service:redis,env:prod': 0.75, + }, + ] + + tracer = get_dummy_tracer() + tracer.configure(sampler=AllSampler()) + priority_sampler = tracer.priority_sampler + for case in cases: + priority_sampler.update_rate_by_service_sample_rates(case) + rates = {} + for k, v in iteritems(priority_sampler._by_service_samplers): + rates[k] = v.sample_rate + assert case == rates, '%s != %s' % (case, rates) + # It's important to also test in reverse mode for we want to make sure key deletion + # works as well as key insertion (and doing this both ways ensures we trigger both cases) + cases.reverse() + for case in cases: + priority_sampler.update_rate_by_service_sample_rates(case) + rates = {} + for k, v in iteritems(priority_sampler._by_service_samplers): + rates[k] = v.sample_rate + assert case == rates, '%s != %s' % (case, rates) + + +@pytest.mark.parametrize( + 'sample_rate,allowed', + [ + # Min/max allowed values + (0.0, True), + (1.0, True), + + # Accepted boundaries + (0.000001, True), + (0.999999, True), + + # Outside the bounds + (-0.000000001, False), + (1.0000000001, False), + ] + [ + # Try a bunch of decimal values between 0 and 1 + (1 / i, True) for i in range(1, 50) + ] + [ + # Try a bunch of decimal values less than 0 + (-(1 / i), False) for i in range(1, 50) + ] + [ + # Try a bunch of decimal values greater than 1 + (1 + (1 / i), False) for i in range(1, 50) + ] +) +def test_sampling_rule_init_sample_rate(sample_rate, allowed): + if allowed: + rule = SamplingRule(sample_rate=sample_rate) + assert rule.sample_rate == sample_rate + else: + with pytest.raises(ValueError): + SamplingRule(sample_rate=sample_rate) + + +def test_sampling_rule_init_defaults(): + rule = SamplingRule(sample_rate=1.0) + assert rule.sample_rate == 1.0 + assert rule.service == SamplingRule.NO_RULE + assert rule.name == SamplingRule.NO_RULE + + +def test_sampling_rule_init(): + name_regex = re.compile(r'\.request$') + + def resource_check(resource): + return 'healthcheck' in resource + + rule = SamplingRule( + sample_rate=0.0, + # Value + service='my-service', + # Regex + name=name_regex, + ) + + assert rule.sample_rate == 0.0 + assert rule.service == 'my-service' + assert rule.name == name_regex + + +@pytest.mark.parametrize( + 'span,rule,expected', + [ + # DEV: Use sample_rate=1 to ensure SamplingRule._sample always returns True + (create_span(name=name), SamplingRule( + sample_rate=1, name=pattern), expected) + for name, pattern, expected in [ + ('test.span', SamplingRule.NO_RULE, True), + # DEV: `span.name` cannot be `None` + ('test.span', None, False), + ('test.span', 'test.span', True), + ('test.span', 'test_span', False), + ('test.span', re.compile(r'^test\.span$'), True), + ('test_span', re.compile(r'^test.span$'), True), + ('test.span', re.compile(r'^test_span$'), False), + ('test.span', re.compile(r'test'), True), + ('test.span', re.compile(r'test\.span|another\.span'), True), + ('another.span', re.compile(r'test\.span|another\.span'), True), + ('test.span', lambda name: 'span' in name, True), + ('test.span', lambda name: 'span' not in name, False), + ('test.span', lambda name: 1 / 0, False), + ] + ] +) +def test_sampling_rule_matches_name(span, rule, expected): + assert rule.matches(span) is expected, '{} -> {} -> {}'.format(rule, span, expected) + + +@pytest.mark.parametrize( + 'span,rule,expected', + [ + # DEV: Use sample_rate=1 to ensure SamplingRule._sample always returns True + (create_span(service=service), SamplingRule(sample_rate=1, service=pattern), expected) + for service, pattern, expected in [ + ('my-service', SamplingRule.NO_RULE, True), + ('my-service', None, False), + (None, None, True), + (None, 'my-service', False), + (None, re.compile(r'my-service'), False), + (None, lambda service: 'service' in service, False), + ('my-service', 'my-service', True), + ('my-service', 'my_service', False), + ('my-service', re.compile(r'^my-'), True), + ('my_service', re.compile(r'^my[_-]'), True), + ('my-service', re.compile(r'^my_'), False), + ('my-service', re.compile(r'my-service'), True), + ('my-service', re.compile(r'my'), True), + ('my-service', re.compile(r'my-service|another-service'), True), + ('another-service', re.compile(r'my-service|another-service'), True), + ('my-service', lambda service: 'service' in service, True), + ('my-service', lambda service: 'service' not in service, False), + ('my-service', lambda service: 1 / 0, False), + ] + ] +) +def test_sampling_rule_matches_service(span, rule, expected): + assert rule.matches(span) is expected, '{} -> {} -> {}'.format(rule, span, expected) + + +@pytest.mark.parametrize( + 'span,rule,expected', + [ + # All match + ( + create_span( + name='test.span', + service='my-service', + ), + SamplingRule( + sample_rate=1, + name='test.span', + service=re.compile(r'^my-'), + ), + True, + ), + + # All match, but sample rate of 0% + # DEV: We are checking if it is a match, not computing sampling rate, sample_rate=0 is not considered + ( + create_span( + name='test.span', + service='my-service', + ), + SamplingRule( + sample_rate=0, + name='test.span', + service=re.compile(r'^my-'), + ), + True, + ), + + # Name doesn't match + ( + create_span( + name='test.span', + service='my-service', + ), + SamplingRule( + sample_rate=1, + name='test_span', + service=re.compile(r'^my-'), + ), + False, + ), + + # Service doesn't match + ( + create_span( + name='test.span', + service='my-service', + ), + SamplingRule( + sample_rate=1, + name='test.span', + service=re.compile(r'^service-'), + ), + False, + ), + ], +) +def test_sampling_rule_matches(span, rule, expected): + assert rule.matches(span) is expected, '{} -> {} -> {}'.format(rule, span, expected) + + +def test_sampling_rule_matches_exception(): + e = Exception('an error occurred') + + def pattern(prop): + raise e + + rule = SamplingRule(sample_rate=1.0, name=pattern) + span = create_span(name='test.span') + + with mock.patch('ddtrace.sampler.log') as mock_log: + assert rule.matches(span) is False + mock_log.warning.assert_called_once_with( + '%r pattern %r failed with %r', + rule, + pattern, + 'test.span', + exc_info=True, + ) + + +@pytest.mark.parametrize('sample_rate', [0.01, 0.1, 0.15, 0.25, 0.5, 0.75, 0.85, 0.9, 0.95, 0.991]) +def test_sampling_rule_sample(sample_rate): + tracer = get_dummy_tracer() + rule = SamplingRule(sample_rate=sample_rate) + + iterations = int(1e4 / sample_rate) + sampled = sum( + rule.sample(Span(tracer=tracer, name=i)) + for i in range(iterations) + ) + + # Less than 5% deviation when 'enough' iterations (arbitrary, just check if it converges) + deviation = abs(sampled - (iterations * sample_rate)) / (iterations * sample_rate) + assert deviation < 0.05, ( + 'Deviation {!r} too high with sample_rate {!r} for {} sampled'.format(deviation, sample_rate, sampled) + ) + + +def test_sampling_rule_sample_rate_1(): + tracer = get_dummy_tracer() + rule = SamplingRule(sample_rate=1) + + iterations = int(1e4) + assert all( + rule.sample(Span(tracer=tracer, name=i)) + for i in range(iterations) + ) + + +def test_sampling_rule_sample_rate_0(): + tracer = get_dummy_tracer() + rule = SamplingRule(sample_rate=0) + + iterations = int(1e4) + assert sum( + rule.sample(Span(tracer=tracer, name=i)) + for i in range(iterations) + ) == 0 + + +def test_datadog_sampler_init(): + # No args + sampler = DatadogSampler() + assert sampler.rules == [] + assert isinstance(sampler.limiter, RateLimiter) + assert sampler.limiter.rate_limit == DatadogSampler.DEFAULT_RATE_LIMIT + assert isinstance(sampler.default_sampler, RateByServiceSampler) + + # With rules + rule = SamplingRule(sample_rate=1) + sampler = DatadogSampler(rules=[rule]) + assert sampler.rules == [rule] + assert sampler.limiter.rate_limit == DatadogSampler.DEFAULT_RATE_LIMIT + assert isinstance(sampler.default_sampler, RateByServiceSampler) + + # With rate limit + sampler = DatadogSampler(rate_limit=10) + assert sampler.limiter.rate_limit == 10 + assert isinstance(sampler.default_sampler, RateByServiceSampler) + + # With default_sample_rate + sampler = DatadogSampler(default_sample_rate=0.5) + assert sampler.limiter.rate_limit == DatadogSampler.DEFAULT_RATE_LIMIT + assert isinstance(sampler.default_sampler, SamplingRule) + assert sampler.default_sampler.sample_rate == 0.5 + + # From env variables + with override_env(dict(DD_TRACE_SAMPLE_RATE='0.5', DD_TRACE_RATE_LIMIT='10')): + sampler = DatadogSampler() + assert sampler.limiter.rate_limit == 10 + assert isinstance(sampler.default_sampler, SamplingRule) + assert sampler.default_sampler.sample_rate == 0.5 + + # Invalid rules + for val in (None, True, False, object(), 1, Exception()): + with pytest.raises(TypeError): + DatadogSampler(rules=[val]) + + # Ensure rule order + rule_1 = SamplingRule(sample_rate=1) + rule_2 = SamplingRule(sample_rate=0.5, service='test') + rule_3 = SamplingRule(sample_rate=0.25, name='flask.request') + sampler = DatadogSampler(rules=[rule_1, rule_2, rule_3]) + assert sampler.rules == [rule_1, rule_2, rule_3] + + +@mock.patch('ddtrace.sampler.RateByServiceSampler.sample') +def test_datadog_sampler_sample_no_rules(mock_sample, dummy_tracer): + sampler = DatadogSampler() + span = create_span(tracer=dummy_tracer) + + # Default RateByServiceSampler() is applied + # No rules configured + # No global rate limit + # No rate limit configured + # RateByServiceSampler.sample(span) returns True + mock_sample.return_value = True + assert sampler.sample(span) is True + assert span._context.sampling_priority is AUTO_KEEP + assert span.sampled is True + + span = create_span(tracer=dummy_tracer) + + # Default RateByServiceSampler() is applied + # No rules configured + # No global rate limit + # No rate limit configured + # RateByServiceSampler.sample(span) returns False + mock_sample.return_value = False + assert sampler.sample(span) is False + assert span._context.sampling_priority is AUTO_REJECT + assert span.sampled is False + + +@mock.patch('ddtrace.internal.rate_limiter.RateLimiter.is_allowed') +def test_datadog_sampler_sample_rules(mock_is_allowed, dummy_tracer): + # Do not let the limiter get in the way of our test + mock_is_allowed.return_value = True + + rules = [ + mock.Mock(spec=SamplingRule), + mock.Mock(spec=SamplingRule), + mock.Mock(spec=SamplingRule), + ] + sampler = DatadogSampler(rules=rules) + + # Reset all of our mocks + @contextlib.contextmanager + def reset_mocks(): + def reset(): + mock_is_allowed.reset_mock() + for rule in rules: + rule.reset_mock() + rule.sample_rate = 0.5 + + default_rule = SamplingRule(sample_rate=1.0) + sampler.default_sampler = mock.Mock(spec=SamplingRule, wraps=default_rule) + # Mock has lots of problems with mocking/wrapping over class properties + sampler.default_sampler.sample_rate = default_rule.sample_rate + + reset() # Reset before, just in case + try: + yield + finally: + reset() # Must reset after + + # No rules want to sample + # It is allowed because of default rate sampler + # All rules SamplingRule.matches are called + # No calls to SamplingRule.sample happen + with reset_mocks(): + span = create_span(tracer=dummy_tracer) + for rule in rules: + rule.matches.return_value = False + + assert sampler.sample(span) is True + assert span._context.sampling_priority is AUTO_KEEP + assert span.sampled is True + mock_is_allowed.assert_called_once_with() + for rule in rules: + rule.matches.assert_called_once_with(span) + rule.sample.assert_not_called() + sampler.default_sampler.matches.assert_not_called() + sampler.default_sampler.sample.assert_called_once_with(span) + assert_sampling_decision_tags(span, rule=1.0, limit=1.0) + + # One rule thinks it should be sampled + # All following rule's SamplingRule.matches are not called + # It goes through limiter + # It is allowed + with reset_mocks(): + span = create_span(tracer=dummy_tracer) + + rules[1].matches.return_value = True + rules[1].sample.return_value = True + + assert sampler.sample(span) is True + assert span._context.sampling_priority is AUTO_KEEP + assert span.sampled is True + mock_is_allowed.assert_called_once_with() + sampler.default_sampler.sample.assert_not_called() + assert_sampling_decision_tags(span, rule=0.5, limit=1.0) + + rules[0].matches.assert_called_once_with(span) + rules[0].sample.assert_not_called() + + rules[1].matches.assert_called_once_with(span) + rules[1].sample.assert_called_once_with(span) + + rules[2].matches.assert_not_called() + rules[2].sample.assert_not_called() + + # All rules think it should be sampled + # The first rule's SamplingRule.matches is called + # It goes through limiter + # It is allowed + with reset_mocks(): + span = create_span(tracer=dummy_tracer) + + for rule in rules: + rule.matches.return_value = True + rules[0].sample.return_value = True + + assert sampler.sample(span) is True + assert span._context.sampling_priority is AUTO_KEEP + assert span.sampled is True + mock_is_allowed.assert_called_once_with() + sampler.default_sampler.sample.assert_not_called() + assert_sampling_decision_tags(span, rule=0.5, limit=1.0) + + rules[0].matches.assert_called_once_with(span) + rules[0].sample.assert_called_once_with(span) + for rule in rules[1:]: + rule.matches.assert_not_called() + rule.sample.assert_not_called() + + # Rule matches but does not think it should be sampled + # The rule's SamplingRule.matches is called + # The rule's SamplingRule.sample is called + # Rate limiter is not called + # The span is rejected + with reset_mocks(): + span = create_span(tracer=dummy_tracer) + + rules[0].matches.return_value = False + rules[2].matches.return_value = False + + rules[1].matches.return_value = True + rules[1].sample.return_value = False + + assert sampler.sample(span) is False + assert span._context.sampling_priority is AUTO_REJECT + assert span.sampled is False + mock_is_allowed.assert_not_called() + sampler.default_sampler.sample.assert_not_called() + assert_sampling_decision_tags(span, rule=0.5) + + rules[0].matches.assert_called_once_with(span) + rules[0].sample.assert_not_called() + + rules[1].matches.assert_called_once_with(span) + rules[1].sample.assert_called_once_with(span) + + rules[2].matches.assert_not_called() + rules[2].sample.assert_not_called() + + # No rules match and RateByServiceSampler is used + # All rules SamplingRule.matches are called + # Priority sampler's `sample` method is called + # Result of priority sampler is returned + # Rate limiter is not called + with reset_mocks(): + span = create_span(tracer=dummy_tracer) + + # Configure mock priority sampler + priority_sampler = RateByServiceSampler() + sampler.default_sampler = mock.Mock(spec=RateByServiceSampler, wraps=priority_sampler) + + for rule in rules: + rule.matches.return_value = False + rule.sample.return_value = False + + assert sampler.sample(span) is True + assert span._context.sampling_priority is AUTO_KEEP + assert span.sampled is True + mock_is_allowed.assert_not_called() + sampler.default_sampler.sample.assert_called_once_with(span) + assert_sampling_decision_tags(span, agent=1) + + [r.matches.assert_called_once_with(span) for r in rules] + [r.sample.assert_not_called() for r in rules] + + # No rules match and priority sampler is defined + # All rules SamplingRule.matches are called + # Priority sampler's `sample` method is called + # Result of priority sampler is returned + # Rate limiter is not called + with reset_mocks(): + span = create_span(tracer=dummy_tracer) + + # Configure mock priority sampler + priority_sampler = RateByServiceSampler() + for rate_sampler in priority_sampler._by_service_samplers.values(): + rate_sampler.set_sample_rate(0) + + sampler.default_sampler = mock.Mock(spec=RateByServiceSampler, wraps=priority_sampler) + + for rule in rules: + rule.matches.return_value = False + rule.sample.return_value = False + + assert sampler.sample(span) is False + assert span._context.sampling_priority is AUTO_REJECT + assert span.sampled is False + mock_is_allowed.assert_not_called() + sampler.default_sampler.sample.assert_called_once_with(span) + assert_sampling_decision_tags(span, agent=0) + + [r.matches.assert_called_once_with(span) for r in rules] + [r.sample.assert_not_called() for r in rules] + + +def test_datadog_sampler_tracer(dummy_tracer): + rule = SamplingRule(sample_rate=1.0, name='test.span') + rule_spy = mock.Mock(spec=rule, wraps=rule) + rule_spy.sample_rate = rule.sample_rate + + sampler = DatadogSampler(rules=[rule_spy]) + limiter_spy = mock.Mock(spec=sampler.limiter, wraps=sampler.limiter) + sampler.limiter = limiter_spy + sampler_spy = mock.Mock(spec=sampler, wraps=sampler) + + dummy_tracer.configure(sampler=sampler_spy) + + assert dummy_tracer.sampler is sampler_spy + + with dummy_tracer.trace('test.span') as span: + # Assert all of our expected functions were called + sampler_spy.sample.assert_called_once_with(span) + rule_spy.matches.assert_called_once_with(span) + rule_spy.sample.assert_called_once_with(span) + limiter_spy.is_allowed.assert_called_once_with() + + # It must always mark it as sampled + assert span.sampled is True + # We know it was sampled because we have a sample rate of 1.0 + assert span._context.sampling_priority is AUTO_KEEP + assert_sampling_decision_tags(span, rule=1.0) + + +def test_datadog_sampler_tracer_rate_limited(dummy_tracer): + rule = SamplingRule(sample_rate=1.0, name='test.span') + rule_spy = mock.Mock(spec=rule, wraps=rule) + rule_spy.sample_rate = rule.sample_rate + + sampler = DatadogSampler(rules=[rule_spy]) + limiter_spy = mock.Mock(spec=sampler.limiter, wraps=sampler.limiter) + limiter_spy.is_allowed.return_value = False # Have the limiter deny the span + sampler.limiter = limiter_spy + sampler_spy = mock.Mock(spec=sampler, wraps=sampler) + + dummy_tracer.configure(sampler=sampler_spy) + + assert dummy_tracer.sampler is sampler_spy + + with dummy_tracer.trace('test.span') as span: + # Assert all of our expected functions were called + sampler_spy.sample.assert_called_once_with(span) + rule_spy.matches.assert_called_once_with(span) + rule_spy.sample.assert_called_once_with(span) + limiter_spy.is_allowed.assert_called_once_with() + + # We must always mark the span as sampled + assert span.sampled is True + assert span._context.sampling_priority is AUTO_REJECT + assert_sampling_decision_tags(span, rule=1.0, limit=None) + + +def test_datadog_sampler_tracer_rate_0(dummy_tracer): + rule = SamplingRule(sample_rate=0, name='test.span') # Sample rate of 0 means never sample + rule_spy = mock.Mock(spec=rule, wraps=rule) + rule_spy.sample_rate = rule.sample_rate + + sampler = DatadogSampler(rules=[rule_spy]) + limiter_spy = mock.Mock(spec=sampler.limiter, wraps=sampler.limiter) + sampler.limiter = limiter_spy + sampler_spy = mock.Mock(spec=sampler, wraps=sampler) + + dummy_tracer.configure(sampler=sampler_spy) + + assert dummy_tracer.sampler is sampler_spy + + with dummy_tracer.trace('test.span') as span: + # Assert all of our expected functions were called + sampler_spy.sample.assert_called_once_with(span) + rule_spy.matches.assert_called_once_with(span) + rule_spy.sample.assert_called_once_with(span) + limiter_spy.is_allowed.assert_not_called() + + # It must always mark it as sampled + assert span.sampled is True + # We know it was not sampled because we have a sample rate of 0.0 + assert span._context.sampling_priority is AUTO_REJECT + assert_sampling_decision_tags(span, rule=0) + + +def test_datadog_sampler_tracer_child(dummy_tracer): + rule = SamplingRule(sample_rate=1.0) # No rules means it gets applied to every span + rule_spy = mock.Mock(spec=rule, wraps=rule) + rule_spy.sample_rate = rule.sample_rate + + sampler = DatadogSampler(rules=[rule_spy]) + limiter_spy = mock.Mock(spec=sampler.limiter, wraps=sampler.limiter) + sampler.limiter = limiter_spy + sampler_spy = mock.Mock(spec=sampler, wraps=sampler) + + dummy_tracer.configure(sampler=sampler_spy) + + assert dummy_tracer.sampler is sampler_spy + + with dummy_tracer.trace('parent.span') as parent: + with dummy_tracer.trace('child.span') as child: + # Assert all of our expected functions were called + # DEV: `assert_called_once_with` ensures we didn't also call with the child span + sampler_spy.sample.assert_called_once_with(parent) + rule_spy.matches.assert_called_once_with(parent) + rule_spy.sample.assert_called_once_with(parent) + limiter_spy.is_allowed.assert_called_once_with() + + # We know it was sampled because we have a sample rate of 1.0 + assert parent.sampled is True + assert parent._context.sampling_priority is AUTO_KEEP + assert_sampling_decision_tags(parent, rule=1.0) + + assert child.sampled is True + assert child._parent is parent + assert child._context.sampling_priority is AUTO_KEEP + + +def test_datadog_sampler_tracer_start_span(dummy_tracer): + rule = SamplingRule(sample_rate=1.0) # No rules means it gets applied to every span + rule_spy = mock.Mock(spec=rule, wraps=rule) + rule_spy.sample_rate = rule.sample_rate + + sampler = DatadogSampler(rules=[rule_spy]) + limiter_spy = mock.Mock(spec=sampler.limiter, wraps=sampler.limiter) + sampler.limiter = limiter_spy + sampler_spy = mock.Mock(spec=sampler, wraps=sampler) + + dummy_tracer.configure(sampler=sampler_spy) + + assert dummy_tracer.sampler is sampler_spy + + span = dummy_tracer.start_span('test.span') + + # Assert all of our expected functions were called + sampler_spy.sample.assert_called_once_with(span) + rule_spy.matches.assert_called_once_with(span) + rule_spy.sample.assert_called_once_with(span) + limiter_spy.is_allowed.assert_called_once_with() + + # It must always mark it as sampled + assert span.sampled is True + # We know it was sampled because we have a sample rate of 1.0 + assert span._context.sampling_priority is AUTO_KEEP + assert_sampling_decision_tags(span, rule=1.0) + + +def test_datadog_sampler_update_rate_by_service_sample_rates(dummy_tracer): + cases = [ + { + 'service:,env:': 1, + }, + { + 'service:,env:': 1, + 'service:mcnulty,env:dev': 0.33, + 'service:postgres,env:dev': 0.7, + }, + { + 'service:,env:': 1, + 'service:mcnulty,env:dev': 0.25, + 'service:postgres,env:dev': 0.5, + 'service:redis,env:prod': 0.75, + }, + ] + + # By default sampler sets it's default sampler to RateByServiceSampler + sampler = DatadogSampler() + for case in cases: + sampler.update_rate_by_service_sample_rates(case) + rates = {} + for k, v in iteritems(sampler.default_sampler._by_service_samplers): + rates[k] = v.sample_rate + assert case == rates, '%s != %s' % (case, rates) + + # It's important to also test in reverse mode for we want to make sure key deletion + # works as well as key insertion (and doing this both ways ensures we trigger both cases) + cases.reverse() + for case in cases: + sampler.update_rate_by_service_sample_rates(case) + rates = {} + for k, v in iteritems(sampler.default_sampler._by_service_samplers): + rates[k] = v.sample_rate + assert case == rates, '%s != %s' % (case, rates) diff --git a/tests/test_span.py b/tests/test_span.py new file mode 100644 index 0000000000..426ab8341f --- /dev/null +++ b/tests/test_span.py @@ -0,0 +1,421 @@ +import mock +import time + +from unittest.case import SkipTest + +from ddtrace.context import Context +from ddtrace.constants import ANALYTICS_SAMPLE_RATE_KEY +from ddtrace.span import Span +from ddtrace.ext import SpanTypes, errors, priority +from .base import BaseTracerTestCase + + +class SpanTestCase(BaseTracerTestCase): + def test_ids(self): + s = Span(tracer=None, name='span.test') + assert s.trace_id + assert s.span_id + assert not s.parent_id + + s2 = Span(tracer=None, name='t', trace_id=1, span_id=2, parent_id=1) + assert s2.trace_id == 1 + assert s2.span_id == 2 + assert s2.parent_id == 1 + + def test_tags(self): + s = Span(tracer=None, name='test.span') + s.set_tag('a', 'a') + s.set_tag('b', 1) + s.set_tag('c', '1') + d = s.to_dict() + assert d['meta'] == dict(a='a', c='1') + assert d['metrics'] == dict(b=1) + + def test_numeric_tags(self): + s = Span(tracer=None, name='test.span') + s.set_tag('negative', -1) + s.set_tag('zero', 0) + s.set_tag('positive', 1) + s.set_tag('large_int', 2**53) + s.set_tag('really_large_int', (2**53) + 1) + s.set_tag('large_negative_int', -(2**53)) + s.set_tag('really_large_negative_int', -((2**53) + 1)) + s.set_tag('float', 12.3456789) + s.set_tag('negative_float', -12.3456789) + s.set_tag('large_float', 2.0**53) + s.set_tag('really_large_float', (2.0**53) + 1) + + d = s.to_dict() + assert d['meta'] == dict( + really_large_int=str(((2**53) + 1)), + really_large_negative_int=str(-((2**53) + 1)), + ) + assert d['metrics'] == { + 'negative': -1, + 'zero': 0, + 'positive': 1, + 'large_int': 2**53, + 'large_negative_int': -(2**53), + 'float': 12.3456789, + 'negative_float': -12.3456789, + 'large_float': 2.0**53, + 'really_large_float': (2.0**53) + 1, + } + + def test_set_tag_bool(self): + s = Span(tracer=None, name='test.span') + s.set_tag('true', True) + s.set_tag('false', False) + + d = s.to_dict() + assert d['meta'] == dict(true='True', false='False') + assert 'metrics' not in d + + def test_set_tag_metric(self): + s = Span(tracer=None, name='test.span') + + s.set_tag('test', 'value') + assert s.meta == dict(test='value') + assert s.metrics == dict() + + s.set_tag('test', 1) + assert s.meta == dict() + assert s.metrics == dict(test=1) + + def test_set_valid_metrics(self): + s = Span(tracer=None, name='test.span') + s.set_metric('a', 0) + s.set_metric('b', -12) + s.set_metric('c', 12.134) + s.set_metric('d', 1231543543265475686787869123) + s.set_metric('e', '12.34') + d = s.to_dict() + expected = { + 'a': 0, + 'b': -12, + 'c': 12.134, + 'd': 1231543543265475686787869123, + 'e': 12.34, + } + assert d['metrics'] == expected + + def test_set_invalid_metric(self): + s = Span(tracer=None, name='test.span') + + invalid_metrics = [ + None, + {}, + [], + s, + 'quarante-douze', + float('nan'), + float('inf'), + 1j + ] + + for i, m in enumerate(invalid_metrics): + k = str(i) + s.set_metric(k, m) + assert s.get_metric(k) is None + + def test_set_numpy_metric(self): + try: + import numpy as np + except ImportError: + raise SkipTest('numpy not installed') + s = Span(tracer=None, name='test.span') + s.set_metric('a', np.int64(1)) + assert s.get_metric('a') == 1 + assert type(s.get_metric('a')) == float + + def test_tags_not_string(self): + # ensure we can cast as strings + class Foo(object): + def __repr__(self): + 1 / 0 + + s = Span(tracer=None, name='test.span') + s.set_tag('a', Foo()) + + def test_finish(self): + # ensure finish will record a span + ctx = Context() + s = Span(self.tracer, 'test.span', context=ctx) + ctx.add_span(s) + assert s.duration is None + + sleep = 0.05 + with s as s1: + assert s is s1 + time.sleep(sleep) + assert s.duration >= sleep, '%s < %s' % (s.duration, sleep) + self.assert_span_count(1) + + def test_finish_no_tracer(self): + # ensure finish works with no tracer without raising exceptions + s = Span(tracer=None, name='test.span') + s.finish() + + def test_finish_called_multiple_times(self): + # we should only record a span the first time finish is called on it + ctx = Context() + s = Span(self.tracer, 'bar', context=ctx) + ctx.add_span(s) + s.finish() + s.finish() + self.assert_span_count(1) + + def test_finish_set_span_duration(self): + # If set the duration on a span, the span should be recorded with this + # duration + s = Span(tracer=None, name='test.span') + s.duration = 1337.0 + s.finish() + assert s.duration == 1337.0 + + def test_traceback_with_error(self): + s = Span(None, 'test.span') + try: + 1 / 0 + except ZeroDivisionError: + s.set_traceback() + else: + assert 0, 'should have failed' + + assert s.error + assert 'by zero' in s.get_tag(errors.ERROR_MSG) + assert 'ZeroDivisionError' in s.get_tag(errors.ERROR_TYPE) + + def test_traceback_without_error(self): + s = Span(None, 'test.span') + s.set_traceback() + assert not s.error + assert not s.get_tag(errors.ERROR_MSG) + assert not s.get_tag(errors.ERROR_TYPE) + assert 'in test_traceback_without_error' in s.get_tag(errors.ERROR_STACK) + + def test_ctx_mgr(self): + s = Span(self.tracer, 'bar') + assert not s.duration + assert not s.error + + e = Exception('boo') + try: + with s: + time.sleep(0.01) + raise e + except Exception as out: + assert out == e + assert s.duration > 0, s.duration + assert s.error + assert s.get_tag(errors.ERROR_MSG) == 'boo' + assert 'Exception' in s.get_tag(errors.ERROR_TYPE) + assert s.get_tag(errors.ERROR_STACK) + + else: + assert 0, 'should have failed' + + def test_span_type(self): + s = Span(tracer=None, name='test.span', service='s', resource='r', span_type=SpanTypes.WEB) + s.set_tag('a', '1') + s.set_meta('b', '2') + s.finish() + + d = s.to_dict() + assert d + assert d['span_id'] == s.span_id + assert d['trace_id'] == s.trace_id + assert d['parent_id'] == s.parent_id + assert d['meta'] == {'a': '1', 'b': '2'} + assert d['type'] == 'web' + assert d['error'] == 0 + assert type(d['error']) == int + + def test_span_to_dict(self): + s = Span(tracer=None, name='test.span', service='s', resource='r') + s.span_type = 'foo' + s.set_tag('a', '1') + s.set_meta('b', '2') + s.finish() + + d = s.to_dict() + assert d + assert d['span_id'] == s.span_id + assert d['trace_id'] == s.trace_id + assert d['parent_id'] == s.parent_id + assert d['meta'] == {'a': '1', 'b': '2'} + assert d['type'] == 'foo' + assert d['error'] == 0 + assert type(d['error']) == int + + def test_span_to_dict_sub(self): + parent = Span(tracer=None, name='test.span', service='s', resource='r') + s = Span(tracer=None, name='test.span', service='s', resource='r') + s._parent = parent + s.span_type = 'foo' + s.set_tag('a', '1') + s.set_meta('b', '2') + s.finish() + + d = s.to_dict() + assert d + assert d['span_id'] == s.span_id + assert d['trace_id'] == s.trace_id + assert d['parent_id'] == s.parent_id + assert d['meta'] == {'a': '1', 'b': '2'} + assert d['type'] == 'foo' + assert d['error'] == 0 + assert type(d['error']) == int + + def test_span_boolean_err(self): + s = Span(tracer=None, name='foo.bar', service='s', resource='r') + s.error = True + s.finish() + + d = s.to_dict() + assert d + assert d['error'] == 1 + assert type(d['error']) == int + + @mock.patch('ddtrace.span.log') + def test_numeric_tags_none(self, span_log): + s = Span(tracer=None, name='test.span') + s.set_tag(ANALYTICS_SAMPLE_RATE_KEY, None) + d = s.to_dict() + assert d + assert 'metrics' not in d + + # Ensure we log a debug message + span_log.debug.assert_called_once_with( + 'ignoring not number metric %s:%s', + ANALYTICS_SAMPLE_RATE_KEY, + None, + ) + + def test_numeric_tags_true(self): + s = Span(tracer=None, name='test.span') + s.set_tag(ANALYTICS_SAMPLE_RATE_KEY, True) + d = s.to_dict() + assert d + expected = { + ANALYTICS_SAMPLE_RATE_KEY: 1.0 + } + assert d['metrics'] == expected + + def test_numeric_tags_value(self): + s = Span(tracer=None, name='test.span') + s.set_tag(ANALYTICS_SAMPLE_RATE_KEY, 0.5) + d = s.to_dict() + assert d + expected = { + ANALYTICS_SAMPLE_RATE_KEY: 0.5 + } + assert d['metrics'] == expected + + def test_numeric_tags_bad_value(self): + s = Span(tracer=None, name='test.span') + s.set_tag(ANALYTICS_SAMPLE_RATE_KEY, 'Hello') + d = s.to_dict() + assert d + assert 'metrics' not in d + + def test_set_tag_manual_keep(self): + ctx = Context() + s = Span(tracer=None, name='root.span', service='s', resource='r', context=ctx) + + assert s.context == ctx + assert ctx.sampling_priority != priority.USER_KEEP + assert s.context.sampling_priority != priority.USER_KEEP + assert s.meta == dict() + + s.set_tag('manual.keep') + assert ctx.sampling_priority == priority.USER_KEEP + assert s.context.sampling_priority == priority.USER_KEEP + assert s.meta == dict() + + ctx.sampling_priority = priority.AUTO_REJECT + assert ctx.sampling_priority == priority.AUTO_REJECT + assert s.context.sampling_priority == priority.AUTO_REJECT + assert s.meta == dict() + + s.set_tag('manual.keep') + assert ctx.sampling_priority == priority.USER_KEEP + assert s.context.sampling_priority == priority.USER_KEEP + assert s.meta == dict() + + def test_set_tag_manual_drop(self): + ctx = Context() + s = Span(tracer=None, name='root.span', service='s', resource='r', context=ctx) + + assert s.context == ctx + assert ctx.sampling_priority != priority.USER_REJECT + assert s.context.sampling_priority != priority.USER_REJECT + assert s.meta == dict() + + s.set_tag('manual.drop') + assert ctx.sampling_priority == priority.USER_REJECT + assert s.context.sampling_priority == priority.USER_REJECT + assert s.meta == dict() + + ctx.sampling_priority = priority.AUTO_REJECT + assert ctx.sampling_priority == priority.AUTO_REJECT + assert s.context.sampling_priority == priority.AUTO_REJECT + assert s.meta == dict() + + s.set_tag('manual.drop') + assert ctx.sampling_priority == priority.USER_REJECT + assert s.context.sampling_priority == priority.USER_REJECT + assert s.meta == dict() + + def test_set_tag_none(self): + s = Span(tracer=None, name='root.span', service='s', resource='r') + assert s.meta == dict() + + s.set_tag('custom.key', '100') + + assert s.meta == {'custom.key': '100'} + + s.set_tag('custom.key', None) + + assert s.meta == {'custom.key': 'None'} + + def test_duration_zero(self): + s = Span(tracer=None, name='foo.bar', service='s', resource='r', start=123) + s.finish(finish_time=123) + assert s.duration_ns == 0 + assert s.duration == 0 + + def test_start_int(self): + s = Span(tracer=None, name='foo.bar', service='s', resource='r', start=123) + assert s.start == 123 + assert s.start_ns == 123000000000 + + s = Span(tracer=None, name='foo.bar', service='s', resource='r', start=123.123) + assert s.start == 123.123 + assert s.start_ns == 123123000000 + + s = Span(tracer=None, name='foo.bar', service='s', resource='r', start=123.123) + s.start = 234567890.0 + assert s.start == 234567890 + assert s.start_ns == 234567890000000000 + + def test_duration_int(self): + s = Span(tracer=None, name='foo.bar', service='s', resource='r') + s.finish() + assert isinstance(s.duration_ns, int) + assert isinstance(s.duration, float) + + s = Span(tracer=None, name='foo.bar', service='s', resource='r', start=123) + s.finish(finish_time=123.2) + assert s.duration_ns == 200000000 + assert s.duration == 0.2 + + s = Span(tracer=None, name='foo.bar', service='s', resource='r', start=123.1) + s.finish(finish_time=123.2) + assert s.duration_ns == 100000000 + assert s.duration == 0.1 + + s = Span(tracer=None, name='foo.bar', service='s', resource='r', start=122) + s.finish(finish_time=123) + assert s.duration_ns == 1000000000 + assert s.duration == 1 diff --git a/tests/test_tracer.py b/tests/test_tracer.py new file mode 100644 index 0000000000..2ce840a210 --- /dev/null +++ b/tests/test_tracer.py @@ -0,0 +1,667 @@ +""" +tests for Tracer and utilities. +""" +import contextlib +import multiprocessing +from os import getpid +import sys +import warnings + +from unittest.case import SkipTest + +import mock +import pytest + +import ddtrace +from ddtrace.ext import system +from ddtrace.context import Context + +from .base import BaseTracerTestCase +from .util import override_global_tracer +from .utils.tracer import DummyTracer +from .utils.tracer import DummyWriter # noqa + + +def get_dummy_tracer(): + return DummyTracer() + + +class TracerTestCase(BaseTracerTestCase): + def test_tracer_vars(self): + span = self.trace('a', service='s', resource='r', span_type='t') + span.assert_matches(name='a', service='s', resource='r', span_type='t') + # DEV: Finish to ensure we don't leak `service` between spans + span.finish() + + span = self.trace('a') + span.assert_matches(name='a', service=None, resource='a', span_type=None) + + def test_tracer(self): + def _mix(): + with self.trace('cake.mix'): + pass + + def _bake(): + with self.trace('cake.bake'): + pass + + def _make_cake(): + with self.trace('cake.make') as span: + span.service = 'baker' + span.resource = 'cake' + _mix() + _bake() + + # let's run it and make sure all is well. + self.assert_has_no_spans() + _make_cake() + + # Capture root's trace id to assert later + root_trace_id = self.get_root_span().trace_id + + # Assert structure of this trace + self.assert_structure( + # Root span with 2 children + dict(name='cake.make', resource='cake', service='baker', parent_id=None), + ( + # Span with no children + dict(name='cake.mix', resource='cake.mix', service='baker'), + # Span with no children + dict(name='cake.bake', resource='cake.bake', service='baker'), + ), + ) + + # do it again and make sure it has new trace ids + self.reset() + _make_cake() + self.assert_span_count(3) + for s in self.spans: + assert s.trace_id != root_trace_id + + def test_tracer_wrap(self): + @self.tracer.wrap('decorated_function', service='s', resource='r', span_type='t') + def f(tag_name, tag_value): + # make sure we can still set tags + span = self.tracer.current_span() + span.set_tag(tag_name, tag_value) + + f('a', 'b') + + self.assert_span_count(1) + span = self.get_root_span() + span.assert_matches( + name='decorated_function', service='s', resource='r', span_type='t', meta=dict(a='b'), + ) + + def test_tracer_pid(self): + with self.trace('root') as root_span: + with self.trace('child') as child_span: + pass + + # Root span should contain the pid of the current process + root_span.assert_metrics({system.PID: getpid()}, exact=False) + + # Child span should not contain a pid tag + child_span.assert_metrics(dict(), exact=True) + + def test_tracer_wrap_default_name(self): + @self.tracer.wrap() + def f(): + pass + + f() + + self.assert_structure(dict(name='tests.test_tracer.f')) + + def test_tracer_wrap_exception(self): + @self.tracer.wrap() + def f(): + raise Exception('bim') + + with self.assertRaises(Exception) as ex: + f() + + self.assert_structure( + dict( + name='tests.test_tracer.f', + error=1, + meta={ + 'error.msg': ex.message, + 'error.type': ex.__class__.__name__, + }, + ), + ) + + def test_tracer_wrap_multiple_calls(self): + @self.tracer.wrap() + def f(): + pass + + f() + f() + + self.assert_span_count(2) + assert self.spans[0].span_id != self.spans[1].span_id + + def test_tracer_wrap_span_nesting_current_root_span(self): + @self.tracer.wrap('inner') + def inner(): + root_span = self.tracer.current_root_span() + self.assertEqual(root_span.name, 'outer') + + @self.tracer.wrap('outer') + def outer(): + root_span = self.tracer.current_root_span() + self.assertEqual(root_span.name, 'outer') + + with self.trace('mid'): + root_span = self.tracer.current_root_span() + self.assertEqual(root_span.name, 'outer') + + inner() + + outer() + + def test_tracer_wrap_span_nesting(self): + @self.tracer.wrap('inner') + def inner(): + pass + + @self.tracer.wrap('outer') + def outer(): + with self.trace('mid'): + inner() + + outer() + + self.assert_span_count(3) + self.assert_structure( + dict(name='outer'), + ( + ( + dict(name='mid'), + ( + dict(name='inner'), + ) + ), + ), + ) + + def test_tracer_wrap_class(self): + class Foo(object): + + @staticmethod + @self.tracer.wrap() + def s(): + return 1 + + @classmethod + @self.tracer.wrap() + def c(cls): + return 2 + + @self.tracer.wrap() + def i(cls): + return 3 + + f = Foo() + self.assertEqual(f.s(), 1) + self.assertEqual(f.c(), 2) + self.assertEqual(f.i(), 3) + + self.assert_span_count(3) + self.spans[0].assert_matches(name='tests.test_tracer.s') + self.spans[1].assert_matches(name='tests.test_tracer.c') + self.spans[2].assert_matches(name='tests.test_tracer.i') + + def test_tracer_wrap_factory(self): + def wrap_executor(tracer, fn, args, kwargs, span_name=None, service=None, resource=None, span_type=None): + with tracer.trace('wrap.overwrite') as span: + span.set_tag('args', args) + span.set_tag('kwargs', kwargs) + return fn(*args, **kwargs) + + @self.tracer.wrap() + def wrapped_function(param, kw_param=None): + self.assertEqual(42, param) + self.assertEqual(42, kw_param) + + # set the custom wrap factory after the wrapper has been called + self.tracer.configure(wrap_executor=wrap_executor) + + # call the function expecting that the custom tracing wrapper is used + wrapped_function(42, kw_param=42) + + self.assert_span_count(1) + self.spans[0].assert_matches( + name='wrap.overwrite', + meta=dict(args='(42,)', kwargs='{\'kw_param\': 42}'), + ) + + def test_tracer_wrap_factory_nested(self): + def wrap_executor(tracer, fn, args, kwargs, span_name=None, service=None, resource=None, span_type=None): + with tracer.trace('wrap.overwrite') as span: + span.set_tag('args', args) + span.set_tag('kwargs', kwargs) + return fn(*args, **kwargs) + + @self.tracer.wrap() + def wrapped_function(param, kw_param=None): + self.assertEqual(42, param) + self.assertEqual(42, kw_param) + + # set the custom wrap factory after the wrapper has been called + self.tracer.configure(wrap_executor=wrap_executor) + + # call the function expecting that the custom tracing wrapper is used + with self.trace('wrap.parent', service='webserver'): + wrapped_function(42, kw_param=42) + + self.assert_structure( + dict(name='wrap.parent', service='webserver'), + ( + dict( + name='wrap.overwrite', + service='webserver', + meta=dict(args='(42,)', kwargs='{\'kw_param\': 42}') + ), + ), + ) + + def test_tracer_disabled(self): + self.tracer.enabled = True + with self.trace('foo') as s: + s.set_tag('a', 'b') + + self.assert_has_spans() + self.reset() + + self.tracer.enabled = False + with self.trace('foo') as s: + s.set_tag('a', 'b') + self.assert_has_no_spans() + + def test_unserializable_span_with_finish(self): + try: + import numpy as np + except ImportError: + raise SkipTest('numpy not installed') + + # a weird case where manually calling finish with an unserializable + # span was causing an loop of serialization. + with self.trace('parent') as span: + span.metrics['as'] = np.int64(1) # circumvent the data checks + span.finish() + + def test_tracer_disabled_mem_leak(self): + # ensure that if the tracer is disabled, we still remove things from the + # span buffer upon finishing. + self.tracer.enabled = False + s1 = self.trace('foo') + s1.finish() + + p1 = self.tracer.current_span() + s2 = self.trace('bar') + + self.assertIsNone(s2._parent) + s2.finish() + self.assertIsNone(p1) + + def test_tracer_global_tags(self): + s1 = self.trace('brie') + s1.finish() + self.assertIsNone(s1.get_tag('env')) + self.assertIsNone(s1.get_tag('other')) + + self.tracer.set_tags({'env': 'prod'}) + s2 = self.trace('camembert') + s2.finish() + self.assertEqual(s2.get_tag('env'), 'prod') + self.assertIsNone(s2.get_tag('other')) + + self.tracer.set_tags({'env': 'staging', 'other': 'tag'}) + s3 = self.trace('gruyere') + s3.finish() + self.assertEqual(s3.get_tag('env'), 'staging') + self.assertEqual(s3.get_tag('other'), 'tag') + + def test_global_context(self): + # the tracer uses a global thread-local Context + span = self.trace('fake_span') + ctx = self.tracer.get_call_context() + self.assertEqual(len(ctx._trace), 1) + self.assertEqual(ctx._trace[0], span) + + def test_tracer_current_span(self): + # the current span is in the local Context() + span = self.trace('fake_span') + self.assertEqual(self.tracer.current_span(), span) + + def test_tracer_current_span_missing_context(self): + self.assertIsNone(self.tracer.current_span()) + + def test_tracer_current_root_span_missing_context(self): + self.assertIsNone(self.tracer.current_root_span()) + + def test_default_provider_get(self): + # Tracer Context Provider must return a Context object + # even if empty + ctx = self.tracer.context_provider.active() + self.assertTrue(isinstance(ctx, Context)) + self.assertEqual(len(ctx._trace), 0) + + def test_default_provider_set(self): + # The Context Provider can set the current active Context; + # this could happen in distributed tracing + ctx = Context(trace_id=42, span_id=100) + self.tracer.context_provider.activate(ctx) + span = self.trace('web.request') + span.assert_matches(name='web.request', trace_id=42, parent_id=100) + + def test_default_provider_trace(self): + # Context handled by a default provider must be used + # when creating a trace + span = self.trace('web.request') + ctx = self.tracer.context_provider.active() + self.assertEqual(len(ctx._trace), 1) + self.assertEqual(span._context, ctx) + + def test_start_span(self): + # it should create a root Span + span = self.start_span('web.request') + span.assert_matches( + name='web.request', + tracer=self.tracer, + _parent=None, + parent_id=None, + ) + self.assertIsNotNone(span._context) + self.assertEqual(span._context._current_span, span) + + def test_start_span_optional(self): + # it should create a root Span with arguments + span = self.start_span('web.request', service='web', resource='/', span_type='http') + span.assert_matches( + name='web.request', + service='web', + resource='/', + span_type='http', + ) + + def test_start_child_span(self): + # it should create a child Span for the given parent + parent = self.start_span('web.request') + child = self.start_span('web.worker', child_of=parent) + + parent.assert_matches( + name='web.request', + parent_id=None, + _context=child._context, + _parent=None, + tracer=self.tracer, + ) + child.assert_matches( + name='web.worker', + parent_id=parent.span_id, + _context=parent._context, + _parent=parent, + tracer=self.tracer, + ) + + self.assertEqual(child._context._current_span, child) + + def test_start_child_span_attributes(self): + # it should create a child Span with parent's attributes + parent = self.start_span('web.request', service='web', resource='/', span_type='http') + child = self.start_span('web.worker', child_of=parent) + child.assert_matches(name='web.worker', service='web') + + def test_start_child_from_context(self): + # it should create a child span with a populated Context + root = self.start_span('web.request') + context = root.context + child = self.start_span('web.worker', child_of=context) + + child.assert_matches( + name='web.worker', + parent_id=root.span_id, + trace_id=root.trace_id, + _context=root._context, + _parent=root, + tracer=self.tracer, + ) + self.assertEqual(child._context._current_span, child) + + def test_adding_services(self): + self.assertEqual(self.tracer._services, set()) + root = self.start_span('root', service='one') + context = root.context + self.assertSetEqual(self.tracer._services, set(['one'])) + self.start_span('child', service='two', child_of=context) + self.assertSetEqual(self.tracer._services, set(['one', 'two'])) + + def test_configure_runtime_worker(self): + # by default runtime worker not started though runtime id is set + self.assertIsNone(self.tracer._runtime_worker) + + # configure tracer with runtime metrics collection + self.tracer.configure(collect_metrics=True) + self.assertIsNotNone(self.tracer._runtime_worker) + + def test_configure_dogstatsd_host(self): + with warnings.catch_warnings(record=True) as w: + warnings.simplefilter('always') + self.tracer.configure(dogstatsd_host='foo') + assert self.tracer._dogstatsd_client.host == 'foo' + assert self.tracer._dogstatsd_client.port == 8125 + # verify warnings triggered + assert len(w) == 1 + assert issubclass(w[-1].category, ddtrace.utils.deprecation.RemovedInDDTrace10Warning) + assert 'Use `dogstatsd_url`' in str(w[-1].message) + + def test_configure_dogstatsd_host_port(self): + with warnings.catch_warnings(record=True) as w: + warnings.simplefilter('always') + self.tracer.configure(dogstatsd_host='foo', dogstatsd_port='1234') + assert self.tracer._dogstatsd_client.host == 'foo' + assert self.tracer._dogstatsd_client.port == 1234 + # verify warnings triggered + assert len(w) == 2 + assert issubclass(w[0].category, ddtrace.utils.deprecation.RemovedInDDTrace10Warning) + assert 'Use `dogstatsd_url`' in str(w[0].message) + assert issubclass(w[1].category, ddtrace.utils.deprecation.RemovedInDDTrace10Warning) + assert 'Use `dogstatsd_url`' in str(w[1].message) + + def test_configure_dogstatsd_url_host_port(self): + self.tracer.configure(dogstatsd_url='foo:1234') + assert self.tracer._dogstatsd_client.host == 'foo' + assert self.tracer._dogstatsd_client.port == 1234 + + def test_configure_dogstatsd_url_socket(self): + self.tracer.configure(dogstatsd_url='unix:///foo.sock') + assert self.tracer._dogstatsd_client.host is None + assert self.tracer._dogstatsd_client.port is None + assert self.tracer._dogstatsd_client.socket_path == '/foo.sock' + + def test_span_no_runtime_tags(self): + self.tracer.configure(collect_metrics=False) + + root = self.start_span('root') + context = root.context + child = self.start_span('child', child_of=context) + + self.assertIsNone(root.get_tag('language')) + + self.assertIsNone(child.get_tag('language')) + + def test_only_root_span_runtime_internal_span_types(self): + self.tracer.configure(collect_metrics=True) + + for span_type in ("custom", "template", "web", "worker"): + root = self.start_span('root', span_type=span_type) + context = root.context + child = self.start_span('child', child_of=context) + + self.assertEqual(root.get_tag('language'), 'python') + + self.assertIsNone(child.get_tag('language')) + + def test_only_root_span_runtime_external_span_types(self): + self.tracer.configure(collect_metrics=True) + + for span_type in ("algoliasearch.search", "boto", "cache", "cassandra", "elasticsearch", + "grpc", "kombu", "http", "memcached", "redis", "sql", "vertica"): + root = self.start_span('root', span_type=span_type) + context = root.context + child = self.start_span('child', child_of=context) + + self.assertIsNone(root.get_tag('language')) + + self.assertIsNone(child.get_tag('language')) + + +def test_installed_excepthook(): + ddtrace.install_excepthook() + assert sys.excepthook is ddtrace._excepthook + ddtrace.uninstall_excepthook() + assert sys.excepthook is not ddtrace._excepthook + ddtrace.install_excepthook() + assert sys.excepthook is ddtrace._excepthook + + +def test_excepthook(): + ddtrace.install_excepthook() + + class Foobar(Exception): + pass + + called = {} + + def original(tp, value, traceback): + called['yes'] = True + + sys.excepthook = original + ddtrace.install_excepthook() + + e = Foobar() + + tracer = ddtrace.Tracer() + tracer._dogstatsd_client = mock.Mock() + with override_global_tracer(tracer): + sys.excepthook(e.__class__, e, None) + + tracer._dogstatsd_client.increment.assert_has_calls(( + mock.call('datadog.tracer.uncaught_exceptions', 1, tags=['class:Foobar']), + )) + assert called + + +def test_tracer_url(): + t = ddtrace.Tracer() + assert t.writer.api.hostname == 'localhost' + assert t.writer.api.port == 8126 + + t = ddtrace.Tracer(url='http://foobar:12') + assert t.writer.api.hostname == 'foobar' + assert t.writer.api.port == 12 + + t = ddtrace.Tracer(url='unix:///foobar') + assert t.writer.api.uds_path == '/foobar' + + t = ddtrace.Tracer(url='http://localhost') + assert t.writer.api.hostname == 'localhost' + assert t.writer.api.port == 80 + assert not t.writer.api.https + + t = ddtrace.Tracer(url='https://localhost') + assert t.writer.api.hostname == 'localhost' + assert t.writer.api.port == 443 + assert t.writer.api.https + + with pytest.raises(ValueError) as e: + t = ddtrace.Tracer(url='foo://foobar:12') + assert str(e) == 'Unknown scheme `https` for agent URL' + + +def test_tracer_dogstatsd_url(): + t = ddtrace.Tracer() + assert t._dogstatsd_client.host == 'localhost' + assert t._dogstatsd_client.port == 8125 + + t = ddtrace.Tracer(dogstatsd_url='foobar:12') + assert t._dogstatsd_client.host == 'foobar' + assert t._dogstatsd_client.port == 12 + + t = ddtrace.Tracer(dogstatsd_url='udp://foobar:12') + assert t._dogstatsd_client.host == 'foobar' + assert t._dogstatsd_client.port == 12 + + t = ddtrace.Tracer(dogstatsd_url='/var/run/statsd.sock') + assert t._dogstatsd_client.socket_path == '/var/run/statsd.sock' + + t = ddtrace.Tracer(dogstatsd_url='unix:///var/run/statsd.sock') + assert t._dogstatsd_client.socket_path == '/var/run/statsd.sock' + + with pytest.raises(ValueError) as e: + t = ddtrace.Tracer(dogstatsd_url='foo://foobar:12') + assert str(e) == 'Unknown url format for `foo://foobar:12`' + + +def test_tracer_fork(): + t = ddtrace.Tracer() + original_pid = t._pid + original_writer = t.writer + + @contextlib.contextmanager + def capture_failures(errors): + try: + yield + except AssertionError as e: + errors.put(e) + + def task(t, errors): + # Start a new span to trigger process checking + with t.trace('test', service='test') as span: + + # Assert we recreated the writer and have a new queue + with capture_failures(errors): + assert t._pid != original_pid + assert t.writer != original_writer + assert t.writer._trace_queue != original_writer._trace_queue + + # Stop the background worker so we don't accidetnally flush the + # queue before we can assert on it + t.writer.stop() + t.writer.join() + + # Assert the trace got written into the correct queue + assert original_writer._trace_queue.qsize() == 0 + assert t.writer._trace_queue.qsize() == 1 + assert [[span]] == list(t.writer._trace_queue.get()) + + # Assert tracer in a new process correctly recreates the writer + errors = multiprocessing.Queue() + p = multiprocessing.Process(target=task, args=(t, errors)) + try: + p.start() + finally: + p.join(timeout=2) + + while errors.qsize() > 0: + raise errors.get() + + # Ensure writing into the tracer in this process still works as expected + with t.trace('test', service='test') as span: + assert t._pid == original_pid + assert t.writer == original_writer + assert t.writer._trace_queue == original_writer._trace_queue + + # Stop the background worker so we don't accidentally flush the + # queue before we can assert on it + t.writer.stop() + t.writer.join() + + # Assert the trace got written into the correct queue + assert original_writer._trace_queue.qsize() == 1 + assert t.writer._trace_queue.qsize() == 1 + assert [[span]] == list(t.writer._trace_queue.get()) diff --git a/tests/test_utils.py b/tests/test_utils.py new file mode 100644 index 0000000000..959c8acc7d --- /dev/null +++ b/tests/test_utils.py @@ -0,0 +1,98 @@ +import os +import unittest +import warnings + +from ddtrace.utils.deprecation import deprecation, deprecated, format_message +from ddtrace.utils.formats import asbool, get_env, flatten_dict + + +class TestUtils(unittest.TestCase): + def test_asbool(self): + # ensure the value is properly cast + self.assertTrue(asbool('True')) + self.assertTrue(asbool('true')) + self.assertTrue(asbool('1')) + self.assertFalse(asbool('False')) + self.assertFalse(asbool('false')) + self.assertFalse(asbool(None)) + self.assertFalse(asbool('')) + self.assertTrue(asbool(True)) + self.assertFalse(asbool(False)) + + def test_get_env(self): + # ensure `get_env` returns a default value if environment variables + # are not set + value = get_env('django', 'distributed_tracing') + self.assertIsNone(value) + value = get_env('django', 'distributed_tracing', False) + self.assertFalse(value) + + def test_get_env_found(self): + # ensure `get_env` returns a value if the environment variable is set + os.environ['DD_REQUESTS_DISTRIBUTED_TRACING'] = '1' + value = get_env('requests', 'distributed_tracing') + self.assertEqual(value, '1') + + def test_get_env_found_legacy(self): + # ensure `get_env` returns a value if legacy environment variables + # are used, raising a Deprecation warning + with warnings.catch_warnings(record=True) as w: + warnings.simplefilter('always') + os.environ['DATADOG_REQUESTS_DISTRIBUTED_TRACING'] = '1' + value = get_env('requests', 'distributed_tracing') + self.assertEqual(value, '1') + self.assertEqual(len(w), 1) + self.assertTrue(issubclass(w[-1].category, DeprecationWarning)) + self.assertTrue('Use `DD_` prefix instead' in str(w[-1].message)) + + def test_get_env_key_priority(self): + # ensure `get_env` use `DD_` with highest priority + os.environ['DD_REQUESTS_DISTRIBUTED_TRACING'] = 'highest' + os.environ['DATADOG_REQUESTS_DISTRIBUTED_TRACING'] = 'lowest' + value = get_env('requests', 'distributed_tracing') + self.assertEqual(value, 'highest') + + def test_deprecation_formatter(self): + # ensure the formatter returns the proper message + msg = format_message( + 'deprecated_function', + 'use something else instead', + '1.0.0', + ) + expected = ( + '\'deprecated_function\' is deprecated and will be remove in future versions (1.0.0). ' + 'use something else instead' + ) + self.assertEqual(msg, expected) + + def test_deprecation(self): + # ensure `deprecation` properly raise a DeprecationWarning + with warnings.catch_warnings(record=True) as w: + warnings.simplefilter('always') + deprecation( + name='fn', + message='message', + version='1.0.0' + ) + self.assertEqual(len(w), 1) + self.assertTrue(issubclass(w[-1].category, DeprecationWarning)) + self.assertIn('message', str(w[-1].message)) + + def test_deprecated_decorator(self): + # ensure `deprecated` decorator properly raise a DeprecationWarning + @deprecated('decorator', version='1.0.0') + def fxn(): + pass + + with warnings.catch_warnings(record=True) as w: + warnings.simplefilter('always') + fxn() + self.assertEqual(len(w), 1) + self.assertTrue(issubclass(w[-1].category, DeprecationWarning)) + self.assertIn('decorator', str(w[-1].message)) + + def test_flatten_dict(self): + """ ensure that flattening of a nested dict results in a normalized, 1-level dict """ + d = dict(A=1, B=2, C=dict(A=3, B=4, C=dict(A=5, B=6))) + e = dict(A=1, B=2, C_A=3, C_B=4, C_C_A=5, C_C_B=6) + self.assertEquals(flatten_dict(d, sep='_'), e) diff --git a/tests/test_worker.py b/tests/test_worker.py new file mode 100644 index 0000000000..a08d2a2af7 --- /dev/null +++ b/tests/test_worker.py @@ -0,0 +1,58 @@ +import pytest + +from ddtrace import _worker + + +def test_start(): + w = _worker.PeriodicWorkerThread() + w.start() + assert w.is_alive() + w.stop() + w.join() + assert not w.is_alive() + + +def test_periodic(): + results = [] + + class MyWorker(_worker.PeriodicWorkerThread): + @staticmethod + def run_periodic(): + results.append(object()) + + w = MyWorker(interval=0, daemon=False) + w.start() + # results should be filled really quickly, but just in case the thread is a snail, wait + while not results: + pass + w.stop() + w.join() + assert results + + +def test_on_shutdown(): + results = [] + + class MyWorker(_worker.PeriodicWorkerThread): + @staticmethod + def on_shutdown(): + results.append(object()) + + w = MyWorker() + w.start() + assert not results + w.stop() + w.join() + assert results + + +def test_restart(): + w = _worker.PeriodicWorkerThread() + w.start() + assert w.is_alive() + w.stop() + w.join() + assert not w.is_alive() + + with pytest.raises(RuntimeError): + w.start() diff --git a/tests/unit/__init__.py b/tests/unit/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/unit/http/__init__.py b/tests/unit/http/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/unit/http/test_headers.py b/tests/unit/http/test_headers.py new file mode 100644 index 0000000000..d0e6b692e9 --- /dev/null +++ b/tests/unit/http/test_headers.py @@ -0,0 +1,170 @@ +import pytest + +from ddtrace import tracer, Span +from ddtrace.http import store_request_headers, store_response_headers +from ddtrace.settings import Config, IntegrationConfig + + +class TestHeaders(object): + + @pytest.fixture() + def span(self): + yield Span(tracer, 'some_span') + + @pytest.fixture() + def config(self): + yield Config() + + @pytest.fixture() + def integration_config(self, config): + yield IntegrationConfig(config, 'test') + + def test_it_does_not_break_if_no_headers(self, span, integration_config): + store_request_headers(None, span, integration_config) + store_response_headers(None, span, integration_config) + + def test_it_does_not_break_if_headers_are_not_a_dict(self, span, integration_config): + store_request_headers(list(), span, integration_config) + store_response_headers(list(), span, integration_config) + + def test_it_accept_headers_as_list_of_tuples(self, span, integration_config): + """ + :type span: Span + :type integration_config: IntegrationConfig + """ + integration_config.http.trace_headers(['Content-Type', 'Max-Age']) + store_request_headers([('Content-Type', 'some;value;content-type')], span, integration_config) + assert span.get_tag('http.request.headers.content-type') == 'some;value;content-type' + assert None is span.get_tag('http.request.headers.other') + + def test_store_multiple_request_headers_as_dict(self, span, integration_config): + """ + :type span: Span + :type integration_config: IntegrationConfig + """ + integration_config.http.trace_headers(['Content-Type', 'Max-Age']) + store_request_headers({ + 'Content-Type': 'some;value;content-type', + 'Max-Age': 'some;value;max_age', + 'Other': 'some;value;other', + }, span, integration_config) + assert span.get_tag('http.request.headers.content-type') == 'some;value;content-type' + assert span.get_tag('http.request.headers.max-age') == 'some;value;max_age' + assert None is span.get_tag('http.request.headers.other') + + def test_store_multiple_response_headers_as_dict(self, span, integration_config): + """ + :type span: Span + :type integration_config: IntegrationConfig + """ + integration_config.http.trace_headers(['Content-Type', 'Max-Age']) + store_response_headers({ + 'Content-Type': 'some;value;content-type', + 'Max-Age': 'some;value;max_age', + 'Other': 'some;value;other', + }, span, integration_config) + assert span.get_tag('http.response.headers.content-type') == 'some;value;content-type' + assert span.get_tag('http.response.headers.max-age') == 'some;value;max_age' + assert None is span.get_tag('http.response.headers.other') + + def test_numbers_in_headers_names_are_allowed(self, span, integration_config): + """ + :type span: Span + :type integration_config: IntegrationConfig + """ + integration_config.http.trace_headers('Content-Type123') + store_response_headers({ + 'Content-Type123': 'some;value', + }, span, integration_config) + assert span.get_tag('http.response.headers.content-type123') == 'some;value' + + def test_allowed_chars_not_replaced_in_tag_name(self, span, integration_config): + """ + :type span: Span + :type integration_config: IntegrationConfig + """ + # See: https://docs.datadoghq.com/tagging/#defining-tags + integration_config.http.trace_headers('C0n_t:e/nt-Type') + store_response_headers({ + 'C0n_t:e/nt-Type': 'some;value', + }, span, integration_config) + assert span.get_tag('http.response.headers.c0n_t:e/nt-type') == 'some;value' + + def test_period_is_replaced_by_underscore(self, span, integration_config): + """ + :type span: Span + :type integration_config: IntegrationConfig + """ + # Deviation from https://docs.datadoghq.com/tagging/#defining-tags in order to allow + # consistent representation of headers having the period in the name. + integration_config.http.trace_headers('api.token') + store_response_headers({ + 'api.token': 'some;value', + }, span, integration_config) + assert span.get_tag('http.response.headers.api_token') == 'some;value' + + def test_non_allowed_chars_replaced(self, span, integration_config): + """ + :type span: Span + :type integration_config: IntegrationConfig + """ + # See: https://docs.datadoghq.com/tagging/#defining-tags + integration_config.http.trace_headers('C!#ontent-Type') + store_response_headers({ + 'C!#ontent-Type': 'some;value', + }, span, integration_config) + assert span.get_tag('http.response.headers.c__ontent-type') == 'some;value' + + def test_key_trim_leading_trailing_spaced(self, span, integration_config): + """ + :type span: Span + :type integration_config: IntegrationConfig + """ + integration_config.http.trace_headers('Content-Type') + store_response_headers({ + ' Content-Type ': 'some;value', + }, span, integration_config) + assert span.get_tag('http.response.headers.content-type') == 'some;value' + + def test_value_not_trim_leading_trailing_spaced(self, span, integration_config): + """ + :type span: Span + :type integration_config: IntegrationConfig + """ + integration_config.http.trace_headers('Content-Type') + store_response_headers({ + 'Content-Type': ' some;value ', + }, span, integration_config) + assert span.get_tag('http.response.headers.content-type') == ' some;value ' + + def test_no_whitelist(self, span, integration_config): + """ + :type span: Span + :type integration_config: IntegrationConfig + """ + store_response_headers({ + 'Content-Type': 'some;value', + }, span, integration_config) + assert span.get_tag('http.response.headers.content-type') is None + + def test_whitelist_exact(self, span, integration_config): + """ + :type span: Span + :type integration_config: IntegrationConfig + """ + integration_config.http.trace_headers('content-type') + store_response_headers({ + 'Content-Type': 'some;value', + }, span, integration_config) + assert span.get_tag('http.response.headers.content-type') == 'some;value' + + def test_whitelist_case_insensitive(self, span, integration_config): + """ + :type span: Span + :type integration_config: IntegrationConfig + """ + integration_config.http.trace_headers('CoNtEnT-tYpE') + store_response_headers({ + 'cOnTeNt-TyPe': 'some;value', + }, span, integration_config) + assert span.get_tag('http.response.headers.content-type') == 'some;value' diff --git a/tests/unit/test_settings.py b/tests/unit/test_settings.py new file mode 100644 index 0000000000..e224322755 --- /dev/null +++ b/tests/unit/test_settings.py @@ -0,0 +1,197 @@ +from ddtrace.settings import Config, HttpConfig, IntegrationConfig + +from ..base import BaseTestCase + + +class TestConfig(BaseTestCase): + def test_environment_analytics_enabled(self): + with self.override_env(dict(DD_ANALYTICS_ENABLED='True')): + config = Config() + self.assertTrue(config.analytics_enabled) + + with self.override_env(dict(DD_ANALYTICS_ENABLED='False')): + config = Config() + self.assertFalse(config.analytics_enabled) + + with self.override_env(dict(DD_TRACE_ANALYTICS_ENABLED='True')): + config = Config() + self.assertTrue(config.analytics_enabled) + + with self.override_env(dict(DD_TRACE_ANALYTICS_ENABLED='False')): + config = Config() + self.assertFalse(config.analytics_enabled) + + def test_environment_analytics_overrides(self): + with self.override_env(dict(DD_ANALYTICS_ENABLED='False', DD_TRACE_ANALYTICS_ENABLED='True')): + config = Config() + self.assertTrue(config.analytics_enabled) + + with self.override_env(dict(DD_ANALYTICS_ENABLED='False', DD_TRACE_ANALYTICS_ENABLED='False')): + config = Config() + self.assertFalse(config.analytics_enabled) + + with self.override_env(dict(DD_ANALYTICS_ENABLED='True', DD_TRACE_ANALYTICS_ENABLED='True')): + config = Config() + self.assertTrue(config.analytics_enabled) + + with self.override_env(dict(DD_ANALYTICS_ENABLED='True', DD_TRACE_ANALYTICS_ENABLED='False')): + config = Config() + self.assertFalse(config.analytics_enabled) + + +class TestHttpConfig(BaseTestCase): + + def test_trace_headers(self): + http_config = HttpConfig() + http_config.trace_headers('some_header') + assert http_config.header_is_traced('some_header') + assert not http_config.header_is_traced('some_other_header') + + def test_trace_headers_whitelist_case_insensitive(self): + http_config = HttpConfig() + http_config.trace_headers('some_header') + assert http_config.header_is_traced('sOmE_hEaDeR') + assert not http_config.header_is_traced('some_other_header') + + def test_trace_multiple_headers(self): + http_config = HttpConfig() + http_config.trace_headers(['some_header_1', 'some_header_2']) + assert http_config.header_is_traced('some_header_1') + assert http_config.header_is_traced('some_header_2') + assert not http_config.header_is_traced('some_header_3') + + def test_empty_entry_do_not_raise_exception(self): + http_config = HttpConfig() + http_config.trace_headers('') + + assert not http_config.header_is_traced('some_header_1') + + def test_none_entry_do_not_raise_exception(self): + http_config = HttpConfig() + http_config.trace_headers(None) + assert not http_config.header_is_traced('some_header_1') + + def test_is_header_tracing_configured(self): + http_config = HttpConfig() + assert not http_config.is_header_tracing_configured + http_config.trace_headers('some_header') + assert http_config.is_header_tracing_configured + + def test_header_is_traced_case_insensitive(self): + http_config = HttpConfig() + http_config.trace_headers('sOmE_hEaDeR') + assert http_config.header_is_traced('SoMe_HeAdEr') + assert not http_config.header_is_traced('some_other_header') + + def test_header_is_traced_false_for_empty_header(self): + http_config = HttpConfig() + http_config.trace_headers('some_header') + assert not http_config.header_is_traced('') + + def test_header_is_traced_false_for_none_header(self): + http_config = HttpConfig() + http_config.trace_headers('some_header') + assert not http_config.header_is_traced(None) + + +class TestIntegrationConfig(BaseTestCase): + def setUp(self): + self.config = Config() + self.integration_config = IntegrationConfig(self.config, 'test') + + def test_is_a_dict(self): + assert isinstance(self.integration_config, dict) + + def test_allow_item_access(self): + self.integration_config['setting'] = 'value' + + # Can be accessed both as item and attr accessor + assert self.integration_config.setting == 'value' + assert self.integration_config['setting'] == 'value' + + def test_allow_attr_access(self): + self.integration_config.setting = 'value' + + # Can be accessed both as item and attr accessor + assert self.integration_config.setting == 'value' + assert self.integration_config['setting'] == 'value' + + def test_allow_both_access(self): + self.integration_config.setting = 'value' + assert self.integration_config['setting'] == 'value' + assert self.integration_config.setting == 'value' + + self.integration_config['setting'] = 'new-value' + assert self.integration_config.setting == 'new-value' + assert self.integration_config['setting'] == 'new-value' + + def test_allow_configuring_http(self): + self.integration_config.http.trace_headers('integration_header') + assert self.integration_config.http.header_is_traced('integration_header') + assert not self.integration_config.http.header_is_traced('other_header') + + def test_allow_exist_both_global_and_integration_config(self): + self.config.trace_headers('global_header') + assert self.integration_config.header_is_traced('global_header') + + self.integration_config.http.trace_headers('integration_header') + assert self.integration_config.header_is_traced('integration_header') + assert not self.integration_config.header_is_traced('global_header') + assert not self.config.header_is_traced('integration_header') + + def test_environment_analytics_enabled(self): + # default + self.assertFalse(self.config.analytics_enabled) + self.assertIsNone(self.config.foo.analytics_enabled) + + with self.override_env(dict(DD_ANALYTICS_ENABLED='True')): + config = Config() + self.assertTrue(config.analytics_enabled) + self.assertIsNone(config.foo.analytics_enabled) + + with self.override_env(dict(DD_FOO_ANALYTICS_ENABLED='True')): + config = Config() + self.assertTrue(config.foo.analytics_enabled) + self.assertEqual(config.foo.analytics_sample_rate, 1.0) + + with self.override_env(dict(DD_FOO_ANALYTICS_ENABLED='False')): + config = Config() + self.assertFalse(config.foo.analytics_enabled) + + with self.override_env(dict(DD_FOO_ANALYTICS_ENABLED='True', DD_FOO_ANALYTICS_SAMPLE_RATE='0.5')): + config = Config() + self.assertTrue(config.foo.analytics_enabled) + self.assertEqual(config.foo.analytics_sample_rate, 0.5) + + def test_analytics_enabled_attribute(self): + """" Confirm environment variable and kwargs are handled properly """ + ic = IntegrationConfig(self.config, 'foo', analytics_enabled=True) + self.assertTrue(ic.analytics_enabled) + + ic = IntegrationConfig(self.config, 'foo', analytics_enabled=False) + self.assertFalse(ic.analytics_enabled) + + with self.override_env(dict(DD_FOO_ANALYTICS_ENABLED='True')): + ic = IntegrationConfig(self.config, 'foo', analytics_enabled=False) + self.assertFalse(ic.analytics_enabled) + + def test_get_analytics_sample_rate(self): + """" Check method for accessing sample rate based on configuration """ + ic = IntegrationConfig(self.config, 'foo', analytics_enabled=True, analytics_sample_rate=0.5) + self.assertEqual(ic.get_analytics_sample_rate(), 0.5) + + ic = IntegrationConfig(self.config, 'foo', analytics_enabled=True) + self.assertEqual(ic.get_analytics_sample_rate(), 1.0) + + ic = IntegrationConfig(self.config, 'foo', analytics_enabled=False) + self.assertIsNone(ic.get_analytics_sample_rate()) + + with self.override_env(dict(DD_ANALYTICS_ENABLED='True')): + config = Config() + ic = IntegrationConfig(config, 'foo') + self.assertEqual(ic.get_analytics_sample_rate(use_global_config=True), 1.0) + + with self.override_env(dict(DD_ANALYTICS_ENABLED='False')): + config = Config() + ic = IntegrationConfig(config, 'foo') + self.assertIsNone(ic.get_analytics_sample_rate(use_global_config=True)) diff --git a/tests/unit/utils/__init__.py b/tests/unit/utils/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/unit/utils/test_http.py b/tests/unit/utils/test_http.py new file mode 100644 index 0000000000..4a4409cb67 --- /dev/null +++ b/tests/unit/utils/test_http.py @@ -0,0 +1,16 @@ +from ddtrace.utils.http import normalize_header_name + + +class TestHeaderNameNormalization(object): + + def test_name_is_trimmed(self): + assert normalize_header_name(' content-type ') == 'content-type' + + def test_name_is_lowered(self): + assert normalize_header_name('Content-Type') == 'content-type' + + def test_none_does_not_raise_exception(self): + assert normalize_header_name(None) is None + + def test_empty_does_not_raise_exception(self): + assert normalize_header_name('') == '' diff --git a/tests/unit/utils/test_time.py b/tests/unit/utils/test_time.py new file mode 100644 index 0000000000..a340f5bd0b --- /dev/null +++ b/tests/unit/utils/test_time.py @@ -0,0 +1,44 @@ +import pytest + +from ddtrace.utils import time + + +def test_no_states(): + watch = time.StopWatch() + with pytest.raises(RuntimeError): + watch.stop() + + +def test_start_stop(): + watch = time.StopWatch() + watch.start() + watch.stop() + + +def test_start_stop_elapsed(): + watch = time.StopWatch() + watch.start() + watch.stop() + e = watch.elapsed() + assert e > 0 + watch.start() + assert watch.elapsed() != e + + +def test_no_elapsed(): + watch = time.StopWatch() + with pytest.raises(RuntimeError): + watch.elapsed() + + +def test_elapsed(): + watch = time.StopWatch() + watch.start() + watch.stop() + assert watch.elapsed() > 0 + + +def test_context_manager(): + with time.StopWatch() as watch: + pass + assert watch.elapsed() > 0 diff --git a/tests/util.py b/tests/util.py new file mode 100644 index 0000000000..6d1204a34a --- /dev/null +++ b/tests/util.py @@ -0,0 +1,20 @@ +import ddtrace +from contextlib import contextmanager + + +def assert_dict_issuperset(a, b): + assert set(a.items()).issuperset(set(b.items())), \ + '{a} is not a superset of {b}'.format(a=a, b=b) + + +@contextmanager +def override_global_tracer(tracer): + """Helper functions that overrides the global tracer available in the + `ddtrace` package. This is required because in some `httplib` tests we + can't get easily the PIN object attached to the `HTTPConnection` to + replace the used tracer with a dummy tracer. + """ + original_tracer = ddtrace.tracer + ddtrace.tracer = tracer + yield + ddtrace.tracer = original_tracer diff --git a/tests/utils/__init__.py b/tests/utils/__init__.py new file mode 100644 index 0000000000..526a52a3c0 --- /dev/null +++ b/tests/utils/__init__.py @@ -0,0 +1,32 @@ +import contextlib +import os + +from ddtrace.ext import http + + +def assert_span_http_status_code(span, code): + """Assert on the span's 'http.status_code' tag""" + tag = span.get_tag(http.STATUS_CODE) + code = str(code) + assert tag == code, "%r != %r" % (tag, code) + + +@contextlib.contextmanager +def override_env(env): + """ + Temporarily override ``os.environ`` with provided values:: + + >>> with self.override_env(dict(DATADOG_TRACE_DEBUG=True)): + # Your test + """ + # Copy the full original environment + original = dict(os.environ) + + # Update based on the passed in arguments + os.environ.update(env) + try: + yield + finally: + # Full clear the environment out and reset back to the original + os.environ.clear() + os.environ.update(original) diff --git a/tests/utils/span.py b/tests/utils/span.py new file mode 100644 index 0000000000..ab4cb97aee --- /dev/null +++ b/tests/utils/span.py @@ -0,0 +1,464 @@ +from ddtrace.span import Span + +NO_CHILDREN = object() + + +class TestSpan(Span): + """ + Test wrapper for a :class:`ddtrace.span.Span` that provides additional functions and assertions + + Example:: + + span = tracer.trace('my.span') + span = TestSpan(span) + + if span.matches(name='my.span'): + print('matches') + + # Raises an AssertionError + span.assert_matches(name='not.my.span', meta={'system.pid': getpid()}) + """ + def __init__(self, span): + """ + Constructor for TestSpan + + :param span: The :class:`ddtrace.span.Span` to wrap + :type span: :class:`ddtrace.span.Span` + """ + if isinstance(span, TestSpan): + span = span._span + + # DEV: Use `object.__setattr__` to by-pass this class's `__setattr__` + object.__setattr__(self, '_span', span) + + def __getattr__(self, key): + """ + First look for property on the base :class:`ddtrace.span.Span` otherwise return this object's attribute + """ + if hasattr(self._span, key): + return getattr(self._span, key) + + return self.__getattribute__(key) + + def __setattr__(self, key, value): + """Pass through all assignment to the base :class:`ddtrace.span.Span`""" + return setattr(self._span, key, value) + + def __eq__(self, other): + """ + Custom equality code to ensure we are using the base :class:`ddtrace.span.Span.__eq__` + + :param other: The object to check equality with + :type other: object + :returns: True if equal, False otherwise + :rtype: bool + """ + if isinstance(other, TestSpan): + return other._span == self._span + elif isinstance(other, Span): + return other == self._span + return other == self + + def matches(self, **kwargs): + """ + Helper function to check if this span's properties matches the expected. + + Example:: + + span = TestSpan(span) + span.matches(name='my.span', resource='GET /') + + :param kwargs: Property/Value pairs to evaluate on this span + :type kwargs: dict + :returns: True if the arguments passed match, False otherwise + :rtype: bool + """ + for name, value in kwargs.items(): + # Special case for `meta` + if name == 'meta' and not self.meta_matches(value): + return False + + # Ensure it has the property first + if not hasattr(self, name): + return False + + # Ensure the values match + if getattr(self, name) != value: + return False + + return True + + def meta_matches(self, meta, exact=False): + """ + Helper function to check if this span's meta matches the expected + + Example:: + + span = TestSpan(span) + span.meta_matches({'system.pid': getpid()}) + + :param meta: Property/Value pairs to evaluate on this span + :type meta: dict + :param exact: Whether to do an exact match on the meta values or not, default: False + :type exact: bool + :returns: True if the arguments passed match, False otherwise + :rtype: bool + """ + if exact: + return self.meta == meta + + for key, value in meta.items(): + if key not in self.meta: + return False + if self.meta[key] != value: + return False + return True + + def assert_matches(self, **kwargs): + """ + Assertion method to ensure this span's properties match as expected + + Example:: + + span = TestSpan(span) + span.assert_matches(name='my.span') + + :param kwargs: Property/Value pairs to evaluate on this span + :type kwargs: dict + :raises: AssertionError + """ + for name, value in kwargs.items(): + # Special case for `meta` + if name == 'meta': + self.assert_meta(value) + elif name == 'metrics': + self.assert_metrics(value) + else: + assert hasattr(self, name), '{0!r} does not have property {1!r}'.format(self, name) + assert getattr(self, name) == value, ( + '{0!r} property {1}: {2!r} != {3!r}' + .format(self, name, getattr(self, name), value) + ) + + def assert_meta(self, meta, exact=False): + """ + Assertion method to ensure this span's meta match as expected + + Example:: + + span = TestSpan(span) + span.assert_meta({'system.pid': getpid()}) + + :param meta: Property/Value pairs to evaluate on this span + :type meta: dict + :param exact: Whether to do an exact match on the meta values or not, default: False + :type exact: bool + :raises: AssertionError + """ + if exact: + assert self.meta == meta + else: + for key, value in meta.items(): + assert key in self.meta, '{0} meta does not have property {1!r}'.format(self, key) + assert self.meta[key] == value, ( + '{0} meta property {1!r}: {2!r} != {3!r}' + .format(self, key, self.meta[key], value) + ) + + def assert_metrics(self, metrics, exact=False): + """ + Assertion method to ensure this span's metrics match as expected + + Example:: + + span = TestSpan(span) + span.assert_metrics({'_dd1.sr.eausr': 1}) + + :param metrics: Property/Value pairs to evaluate on this span + :type metrics: dict + :param exact: Whether to do an exact match on the metrics values or not, default: False + :type exact: bool + :raises: AssertionError + """ + if exact: + assert self.metrics == metrics + else: + for key, value in metrics.items(): + assert key in self.metrics, '{0} metrics does not have property {1!r}'.format(self, key) + assert self.metrics[key] == value, ( + '{0} metrics property {1!r}: {2!r} != {3!r}' + .format(self, key, self.metrics[key], value) + ) + + +class TestSpanContainer(object): + """ + Helper class for a container of Spans. + + Subclasses of this class must implement a `get_spans` method:: + + def get_spans(self): + return [] + + This class provides methods and assertions over a list of spans:: + + class TestCases(BaseTracerTestCase): + def test_spans(self): + # TODO: Create spans + + self.assert_has_spans() + self.assert_span_count(3) + self.assert_structure( ... ) + + # Grab only the `requests.request` spans + spans = self.filter_spans(name='requests.request') + """ + def _ensure_test_spans(self, spans): + """ + internal helper to ensure the list of spans are all :class:`tests.utils.span.TestSpan` + + :param spans: List of :class:`ddtrace.span.Span` or :class:`tests.utils.span.TestSpan` + :type spans: list + :returns: A list og :class:`tests.utils.span.TestSpan` + :rtype: list + """ + return [ + span if isinstance(span, TestSpan) else TestSpan(span) for span in spans + ] + + @property + def spans(self): + return self._ensure_test_spans(self.get_spans()) + + def get_spans(self): + """subclass required property""" + raise NotImplementedError + + def _build_tree(self, root): + """helper to build a tree structure for the provided root span""" + children = [] + for span in self.spans: + if span.parent_id == root.span_id: + children.append(self._build_tree(span)) + + return TestSpanNode(root, children) + + def get_root_span(self): + """ + Helper to get the root span from the list of spans in this container + + :returns: The root span if one was found, None if not, and AssertionError if multiple roots were found + :rtype: :class:`tests.utils.span.TestSpanNode`, None + :raises: AssertionError + """ + root = None + for span in self.spans: + if span.parent_id is None: + if root is not None: + raise AssertionError('Multiple root spans found {0!r} {1!r}'.format(root, span)) + root = span + + assert root, 'No root span found in {0!r}'.format(self.spans) + + return self._build_tree(root) + + def get_root_spans(self): + """ + Helper to get all root spans from the list of spans in this container + + :returns: The root spans if any were found, None if not + :rtype: list of :class:`tests.utils.span.TestSpanNode`, None + """ + roots = [] + for span in self.spans: + if span.parent_id is None: + roots.append(self._build_tree(span)) + + return sorted(roots, key=lambda s: s.start) + + def assert_trace_count(self, count): + """Assert the number of unique trace ids this container has""" + trace_count = len(self.get_root_spans()) + assert trace_count == count, 'Trace count {0} != {1}'.format(trace_count, count) + + def assert_span_count(self, count): + """Assert this container has the expected number of spans""" + assert len(self.spans) == count, 'Span count {0} != {1}'.format(len(self.spans), count) + + def assert_has_spans(self): + """Assert this container has spans""" + assert len(self.spans), 'No spans found' + + def assert_has_no_spans(self): + """Assert this container does not have any spans""" + assert len(self.spans) == 0, 'Span count {0}'.format(len(self.spans)) + + def filter_spans(self, *args, **kwargs): + """ + Helper to filter current spans by provided parameters. + + This function will yield all spans whose `TestSpan.matches` function return `True`. + + :param args: Positional arguments to pass to :meth:`tests.utils.span.TestSpan.matches` + :type args: list + :param kwargs: Keyword arguments to pass to :meth:`tests.utils.span.TestSpan.matches` + :type kwargs: dict + :returns: generator for the matched :class:`tests.utils.span.TestSpan` + :rtype: generator + """ + for span in self.spans: + # ensure we have a TestSpan + if not isinstance(span, TestSpan): + span = TestSpan(span) + + if span.matches(*args, **kwargs): + yield span + + def find_span(self, *args, **kwargs): + """ + Find a single span matches the provided filter parameters. + + This function will find the first span whose `TestSpan.matches` function return `True`. + + :param args: Positional arguments to pass to :meth:`tests.utils.span.TestSpan.matches` + :type args: list + :param kwargs: Keyword arguments to pass to :meth:`tests.utils.span.TestSpan.matches` + :type kwargs: dict + :returns: The first matching span + :rtype: :class:`tests.utils.span.TestSpan` + """ + span = next(self.filter_spans(*args, **kwargs), None) + assert span is not None, ( + 'No span found for filter {0!r} {1!r}, have {2} spans' + .format(args, kwargs, len(self.spans)) + ) + return span + + +class TracerSpanContainer(TestSpanContainer): + """ + A class to wrap a :class:`tests.utils.tracer.DummyTracer` with a + :class:`tests.utils.span.TestSpanContainer` to use in tests + """ + def __init__(self, tracer): + self.tracer = tracer + super(TracerSpanContainer, self).__init__() + + def get_spans(self): + """ + Overridden method to return all spans attached to this tracer + + :returns: List of spans attached to this tracer + :rtype: list + """ + return self.tracer.writer.spans + + def reset(self): + """Helper to reset the existing list of spans created""" + self.tracer.writer.pop() + + +class TestSpanNode(TestSpan, TestSpanContainer): + """ + A :class:`tests.utils.span.TestSpan` which is used as part of a span tree. + + Each :class:`tests.utils.span.TestSpanNode` represents the current :class:`ddtrace.span.Span` + along with any children who have that span as it's parent. + + This class can be used to assert on the parent/child relationships between spans. + + Example:: + + class TestCase(BaseTestCase): + def test_case(self): + # TODO: Create spans + + self.assert_structure( ... ) + + tree = self.get_root_span() + + # Find the first child of the root span with the matching name + request = tree.find_span(name='requests.request') + + # Assert the parent/child relationship of this `request` span + request.assert_structure( ... ) + """ + def __init__(self, root, children=None): + super(TestSpanNode, self).__init__(root) + object.__setattr__(self, '_children', children or []) + + def get_spans(self): + """required subclass property, returns this spans children""" + return self._children + + def assert_structure(self, root, children=NO_CHILDREN): + """ + Assertion to assert on the structure of this node and it's children. + + This assertion takes a dictionary of properties to assert for this node + along with a list of assertions to make for it's children. + + Example:: + + def test_case(self): + # Assert the following structure + # + # One root_span, with two child_spans, one with a requests.request span + # + # | root_span | + # | child_span | | child_span | + # | requests.request | + self.assert_structure( + # Root span with two child_span spans + dict(name='root_span'), + + ( + # Child span with one child of it's own + ( + dict(name='child_span'), + + # One requests.request span with no children + ( + dict(name='requests.request'), + ), + ), + + # Child span with no children + dict(name='child_span'), + ), + ) + + :param root: Properties to assert for this root span, these are passed to + :meth:`tests.utils.span.TestSpan.assert_matches` + :type root: dict + :param children: List of child assertions to make, if children is None then do not make any + assertions about this nodes children. Each list element must be a list with 2 items + the first is a ``dict`` of property assertions on that child, and the second is a ``list`` + of child assertions to make. + :type children: list, None + :raises: + """ + self.assert_matches(**root) + + # Give them a way to ignore asserting on children + if children is None: + return + elif children is NO_CHILDREN: + children = () + + spans = self.spans + self.assert_span_count(len(children)) + for i, child in enumerate(children): + if not isinstance(child, (list, tuple)): + child = (child, NO_CHILDREN) + + root, _children = child + spans[i].assert_matches(parent_id=self.span_id, trace_id=self.trace_id, _parent=self) + spans[i].assert_structure(root, _children) + + def pprint(self): + parts = [super(TestSpanNode, self).pprint()] + for child in self._children: + parts.append('-' * 20) + parts.append(child.pprint()) + return '\r\n'.join(parts) diff --git a/tests/utils/test_module/__init__.py b/tests/utils/test_module/__init__.py new file mode 100644 index 0000000000..9ae1f430dd --- /dev/null +++ b/tests/utils/test_module/__init__.py @@ -0,0 +1,3 @@ +class A(): + def fn(self): + return 1 diff --git a/tests/utils/tracer.py b/tests/utils/tracer.py new file mode 100644 index 0000000000..1b15f4aaf0 --- /dev/null +++ b/tests/utils/tracer.py @@ -0,0 +1,77 @@ +from ddtrace.encoding import JSONEncoder, MsgpackEncoder +from ddtrace.internal.writer import AgentWriter +from ddtrace.tracer import Tracer + + +class DummyWriter(AgentWriter): + """DummyWriter is a small fake writer used for tests. not thread-safe.""" + + def __init__(self, *args, **kwargs): + # original call + super(DummyWriter, self).__init__(*args, **kwargs) + + # dummy components + self.spans = [] + self.traces = [] + self.services = {} + self.json_encoder = JSONEncoder() + self.msgpack_encoder = MsgpackEncoder() + + def write(self, spans=None, services=None): + if spans: + # the traces encoding expect a list of traces so we + # put spans in a list like we do in the real execution path + # with both encoders + trace = [spans] + self.json_encoder.encode_traces(trace) + self.msgpack_encoder.encode_traces(trace) + self.spans += spans + self.traces += trace + + if services: + self.json_encoder.encode_services(services) + self.msgpack_encoder.encode_services(services) + self.services.update(services) + + def pop(self): + # dummy method + s = self.spans + self.spans = [] + return s + + def pop_traces(self): + # dummy method + traces = self.traces + self.traces = [] + return traces + + def pop_services(self): + # dummy method + + # Setting service info has been deprecated, we want to make sure nothing ever gets written here + assert self.services == {} + s = self.services + self.services = {} + return s + + +class DummyTracer(Tracer): + """ + DummyTracer is a tracer which uses the DummyWriter by default + """ + def __init__(self): + super(DummyTracer, self).__init__() + self._update_writer() + + def _update_writer(self): + self.writer = DummyWriter( + hostname=self.writer.api.hostname, + port=self.writer.api.port, + filters=self.writer._filters, + priority_sampler=self.writer._priority_sampler, + ) + + def configure(self, *args, **kwargs): + super(DummyTracer, self).configure(*args, **kwargs) + # `.configure()` may reset the writer + self._update_writer() diff --git a/tests/vendor/__init__.py b/tests/vendor/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/vendor/test_dogstatsd.py b/tests/vendor/test_dogstatsd.py new file mode 100644 index 0000000000..c9b1005049 --- /dev/null +++ b/tests/vendor/test_dogstatsd.py @@ -0,0 +1,7 @@ +from ddtrace.internal.logger import DDLogger +from ddtrace.vendor.dogstatsd.base import log + + +def test_dogstatsd_logger(): + """Ensure dogstatsd logger is initialized as a rate limited logger""" + assert isinstance(log, DDLogger) diff --git a/tests/wait-for-services.py b/tests/wait-for-services.py new file mode 100644 index 0000000000..2c30f89cb8 --- /dev/null +++ b/tests/wait-for-services.py @@ -0,0 +1,114 @@ +import sys +import time + +import mysql.connector +from psycopg2 import connect, OperationalError +from cassandra.cluster import Cluster, NoHostAvailable +import rediscluster +import vertica_python +import kombu + +from contrib.config import ( + POSTGRES_CONFIG, + CASSANDRA_CONFIG, + MYSQL_CONFIG, + REDISCLUSTER_CONFIG, + VERTICA_CONFIG, + RABBITMQ_CONFIG +) + + +def try_until_timeout(exception): + """Utility decorator that tries to call a check until there is a + timeout. The default timeout is about 20 seconds. + + """ + def wrap(fn): + def wrapper(*args, **kwargs): + err = None + + for i in range(100): + try: + fn() + except exception as e: + err = e + time.sleep(0.2) + else: + break + else: + if err: + raise err + return wrapper + return wrap + + +@try_until_timeout(OperationalError) +def check_postgres(): + conn = connect(**POSTGRES_CONFIG) + try: + conn.cursor().execute('SELECT 1;') + finally: + conn.close() + + +@try_until_timeout(NoHostAvailable) +def check_cassandra(): + with Cluster(**CASSANDRA_CONFIG).connect() as conn: + conn.execute('SELECT now() FROM system.local') + + +@try_until_timeout(Exception) +def check_mysql(): + conn = mysql.connector.connect(**MYSQL_CONFIG) + try: + conn.cursor().execute('SELECT 1;') + finally: + conn.close() + + +@try_until_timeout(Exception) +def check_rediscluster(): + test_host = REDISCLUSTER_CONFIG['host'] + test_ports = REDISCLUSTER_CONFIG['ports'] + startup_nodes = [ + {'host': test_host, 'port': int(port)} + for port in test_ports.split(',') + ] + r = rediscluster.StrictRedisCluster(startup_nodes=startup_nodes) + r.flushall() + + +@try_until_timeout(Exception) +def check_vertica(): + conn = vertica_python.connect(**VERTICA_CONFIG) + try: + conn.cursor().execute('SELECT 1;') + finally: + conn.close() + + +@try_until_timeout(Exception) +def check_rabbitmq(): + url = 'amqp://{user}:{password}@{host}:{port}//'.format(**RABBITMQ_CONFIG) + conn = kombu.Connection(url) + try: + conn.connect() + finally: + conn.release() + + +if __name__ == '__main__': + check_functions = { + 'cassandra': check_cassandra, + 'postgres': check_postgres, + 'mysql': check_mysql, + 'rediscluster': check_rediscluster, + 'vertica': check_vertica, + 'rabbitmq': check_rabbitmq, + } + if len(sys.argv) >= 2: + for service in sys.argv[1:]: + check_functions[service]() + else: + print('usage: python {} SERVICE_NAME'.format(sys.argv[0])) + sys.exit(1) diff --git a/tox.ini b/tox.ini new file mode 100644 index 0000000000..5e40dd2a22 --- /dev/null +++ b/tox.ini @@ -0,0 +1,857 @@ +# the tox file specifies a way of running our test suite +# against different combinations of libraries and python +# versions. + +[tox] +# Our various test environments. The py*-all tasks will run the core +# library tests and all contrib tests with the latest library versions. +# The others will test specific versions of libraries. +# +# FIXME[gabin]: +# If the env name is longer than 128 characters (linux kernel limit specified +# in "master/include/linux/binfmts.h"), we'll get a "bad interpreter: No such file or directory" error. +# +#See linux kernel limitation: +# - https://github.com/torvalds/linux/blob/master/include/linux/binfmts.h#L12 +# +#See related github topic: +# - https://github.com/pypa/virtualenv/issues/596 +envlist = + flake8 + black + wait + {py27,py34,py35,py36,py37}-tracer + {py27,py34,py35,py36,py37}-internal + {py27,py34,py35,py36,py37}-integration + {py27,py34,py35,py36,py37}-ddtracerun + {py27,py34,py35,py36,py37}-test_utils + {py27,py34,py35,py36,py37}-test_logging +# Integrations environments + aiobotocore_contrib-py34-aiobotocore{02,03,04} + aiobotocore_contrib-{py35,py36}-aiobotocore{02,03,04,05,07,08,09,010} + # aiobotocore 0.2 and 0.4 do not work because they use async as a reserved keyword + aiobotocore_contrib-py37-aiobotocore{03,05,07,08,09,010} + # Python 3.7 needs at least aiohttp 2.3 + aiohttp_contrib-{py34,py35,py36}-aiohttp{12,13,20,21,22}-aiohttp_jinja{012,013}-yarl + aiohttp_contrib-{py34,py35,py36,py37}-aiohttp23-aiohttp_jinja{015}-yarl10 + aiohttp_contrib-{py35,py36,py37}-aiohttp{30,31,32,33,34,35}-aiohttp_jinja{015}-yarl10 + aiopg_contrib-{py34,py35,py36}-aiopg{012,015} + aiopg_contrib-py37-aiopg015 + algoliasearch_contrib-{py27,py34,py35,py36,py37}-algoliasearch{1,2} + asyncio_contrib-{py34,py35,py36,py37} +# boto needs moto<1 and moto<1 does not support Python >= 3.7 + boto_contrib-{py27,py34,py35,py36}-boto + botocore_contrib-{py27,py34,py35,py36,py37}-botocore + bottle_contrib{,_autopatch}-{py27,py34,py35,py36,py37}-bottle{11,12}-webtest + cassandra_contrib-{py27,py34,py35,py36,py37}-cassandra{35,36,37,38,315} +# Non-4.x celery should be able to use the older redis lib, since it locks to an older kombu + celery_contrib-{py27,py34,py35,py36}-celery{31}-redis{210} +# 4.x celery bumps kombu to 4.4+, which requires redis 3.2 or later, this tests against +# older redis with an older kombu, and newer kombu/newer redis. +# https://github.com/celery/kombu/blob/3e60e6503a77b9b1a987cf7954659929abac9bac/Changelog#L35 + celery_contrib-{py27,py34,py35,py36}-celery{40,41}-{redis210-kombu43,redis320-kombu44} +# Celery 4.2 is now limited to Kombu 4.3 +# https://github.com/celery/celery/commit/1571d414461f01ae55be63a03e2adaa94dbcb15d + celery_contrib-{py27,py34,py35,py36}-celery42-redis210-kombu43 +# Celery 4.3 wants Kombu >= 4.4 and Redis >= 3.2 +# Python 3.7 needs Celery 4.3 + celery_contrib-{py27,py34,py35,py36,py37}-celery43-redis320-kombu44 + consul_contrib-py{27,34,35,36,37}-consul{07,10,11} + dbapi_contrib-{py27,py34,py35,py36} + django_contrib{,_autopatch}-{py27,py34,py35,py36}-django{18,111}-djangopylibmc06-djangoredis45-pylibmc-redis{210}-memcached + django_contrib{,_autopatch}-{py34,py35,py36}-django{200}-djangopylibmc06-djangoredis45-pylibmc-redis{210}-memcached + django_drf_contrib-{py27,py34,py35,py36}-django{111}-djangorestframework{34,37,38} + django_drf_contrib-{py34,py35,py36}-django{200}-djangorestframework{37,38} + dogpile_contrib-{py27,py35,py36,py37}-dogpilecache{06,07,08,latest} + elasticsearch_contrib-{py27,py34,py35,py36}-elasticsearch{16,17,18,23,24,51,52,53,54,63,64} + elasticsearch_contrib-{py27,py34,py35,py36}-elasticsearch1{100} + elasticsearch_contrib-{py27,py34,py35,py36}-elasticsearch2{50} + elasticsearch_contrib-{py27,py34,py35,py36}-elasticsearch5{50} + elasticsearch_contrib-{py27,py34,py35,py36}-elasticsearch6{40} + falcon_contrib{,_autopatch}-{py27,py34,py35,py36}-falcon{10,11,12,13,14} + flask_contrib{,_autopatch}-{py27,py34,py35,py36}-flask{010,011,012,10}-blinker +# Flask <=0.9 does not support Python 3 + flask_contrib{,_autopatch}-{py27}-flask{09}-blinker + flask_cache_contrib{,_autopatch}-{py27,py34,py35,py36,py37}-flask{010,011,012}-flaskcache{013}-memcached-redis{210}-blinker + flask_cache_contrib{,_autopatch}-{py27}-flask{010,011}-flaskcache{012}-memcached-redis{210}-blinker + futures_contrib-{py27}-futures{30,31,32} + futures_contrib-{py34,py35,py36,py37} + gevent_contrib-{py27,py34,py35,py36}-gevent{11,12,13} + gevent_contrib-py37-gevent{13,14} +# gevent 1.0 is not python 3 compatible + gevent_contrib-{py27}-gevent{10} + grpc_contrib-{py27,py34,py35,py36,py37}-grpc{112,113,114,115,116,117,118,119,120,121,122} + httplib_contrib-{py27,py34,py35,py36,py37} + jinja2_contrib-{py27,py34,py35,py36,py37}-jinja{27,28,29,210} + mako_contrib-{py27,py34,py35,py36,py37}-mako{010,100} + molten_contrib-py{36,37}-molten{070,072} + mongoengine_contrib-{py27,py34,py35,py36,py37}-mongoengine{015,016,017,018,latest}-pymongo{latest} + mysql_contrib-{py27,py34,py35,py36,py37}-mysqlconnector + mysqldb_contrib-{py27}-mysqldb{12} + mysqldb_contrib-{py27,py34,py35,py36,py37}-mysqlclient{13} + psycopg_contrib-{py27,py34,py35,py36}-psycopg2{24,25,26,27,28} + psycopg_contrib-py37-psycopg2{27,28} + pylibmc_contrib-{py27,py34,py35,py36,py37}-pylibmc{140,150} + pylons_contrib-{py27}-pylons{096,097,010,10} + pymemcache_contrib{,_autopatch}-{py27,py34,py35,py36,py37}-pymemcache{130,140} + pymongo_contrib-{py27,py34,py35,py36,py37}-pymongo{30,31,32,33,34,35,36,37,38,39,latest}-mongoengine{latest} + pymysql_contrib-{py27,py34,py35,py36,py37}-pymysql{07,08,09} + pyramid_contrib{,_autopatch}-{py27,py34,py35,py36,py37}-pyramid{17,18,19}-webtest + redis_contrib-{py27,py34,py35,py36,py37}-redis{26,27,28,29,210,300} + rediscluster_contrib-{py27,py34,py35,py36,py37}-rediscluster{135,136}-redis210 + requests_contrib{,_autopatch}-{py27,py34,py35,py36,py37}-requests{208,209,210,211,212,213,219} + kombu_contrib-{py27,py34,py35,py36}-kombu{40,41,42} + # Python 3.7 needs Kombu >= 4.2 + kombu_contrib-py37-kombu42 +# python 3.6 requests + gevent regression test +# DEV: This is a known issue for gevent 1.1, suggestion is to upgrade to gevent > 1.2 +# https://github.com/gevent/gevent/issues/903 + requests_gevent_contrib-{py36}-requests{208,209,210,211,212,213,219}-gevent{12,13} + requests_gevent_contrib-py37-requests{208,209,210,211,212,213,219}-gevent13 + sqlalchemy_contrib-{py27,py34,py35,py36,py37}-sqlalchemy{10,11,12}-psycopg228-mysqlconnector + sqlite3_contrib-{py27,py34,py35,py36,py37}-sqlite3 + tornado_contrib-{py27,py34,py35,py36,py37}-tornado{40,41,42,43,44,45} + tornado_contrib-{py37}-tornado{50,51,60} + tornado_contrib-{py27}-tornado{40,41,42,43,44,45}-futures{30,31,32} + vertica_contrib-{py27,py34,py35,py36,py37}-vertica{060,070} +# Opentracer + {py27,py34,py35,py36,py37}-opentracer + {py34,py35,py36,py37}-opentracer_asyncio + {py34,py35,py36,py37}-opentracer_tornado-tornado{40,41,42,43,44} + {py27}-opentracer_gevent-gevent{10} + {py27,py34,py35,py36}-opentracer_gevent-gevent{11,12} + py37-opentracer_gevent-gevent{13,14} +# Unit tests: pytest based test suite that do not require any additional dependency + unit_tests-{py27,py34,py35,py36,py37} + benchmarks-{py27,py34,py35,py36,py37} + +[testenv] +# Always re-run `setup.py develop` to ensure the proper C-extension .so files are created +# DEV: If we don't do this sometimes CircleCI gets messed up and only has the py27 .so +# meaning running on py3.x will fail +# https://stackoverflow.com/questions/57459123/why-do-i-need-to-run-tox-twice-to-test-a-python-package-with-c-extension +commands_pre={envpython} {toxinidir}/setup.py develop +usedevelop = True +basepython = + py27: python2.7 + py34: python3.4 + py35: python3.5 + py36: python3.6 + py37: python3.7 + +deps = + pdbpp + pytest>=3 + pytest-benchmark + pytest-cov + pytest-django + pytest-mock + opentracing +# test dependencies installed in all envs + mock +# force the downgrade as a workaround +# https://github.com/aio-libs/aiohttp/issues/2662 + yarl: yarl==0.18.0 + yarl10: yarl>=1.0,<1.1 +# backports + py27: enum34 +# integrations + aiobotocore010: aiobotocore>=0.10,<0.11 + aiobotocore09: aiobotocore>=0.9,<0.10 + aiobotocore08: aiobotocore>=0.8,<0.9 + aiobotocore07: aiobotocore>=0.7,<0.8 + # aiobotocore06 does not work + aiobotocore05: aiobotocore>=0.5,<0.6 + aiobotocore04: aiobotocore>=0.4,<0.5 + aiobotocore03: aiobotocore>=0.3,<0.4 + aiobotocore02: aiobotocore>=0.2,<0.3 + aiobotocore02: multidict==4.5.2 + aiobotocore{02,03,04}-{py34}: typing + aiopg012: aiopg>=0.12,<0.13 + aiopg015: aiopg>=0.15,<0.16 + aiopg: sqlalchemy + aiohttp12: aiohttp>=1.2,<1.3 + aiohttp13: aiohttp>=1.3,<1.4 + aiohttp20: aiohttp>=2.0,<2.1 + aiohttp21: aiohttp>=2.1,<2.2 + aiohttp22: aiohttp>=2.2,<2.3 + aiohttp23: aiohttp>=2.3,<2.4 + aiohttp30: aiohttp>=3.0,<3.1 + aiohttp31: aiohttp>=3.1,<3.2 + aiohttp32: aiohttp>=3.2,<3.3 + aiohttp33: aiohttp>=3.3,<3.4 + aiohttp34: aiohttp>=3.4,<3.5 + aiohttp35: aiohttp>=3.5,<3.6 + aiohttp_jinja012: aiohttp_jinja2>=0.12,<0.13 + aiohttp_jinja013: aiohttp_jinja2>=0.13,<0.14 + aiohttp_jinja015: aiohttp_jinja2>=0.15,<0.16 + algoliasearch1: algoliasearch>=1.2,<2 + algoliasearch2: algoliasearch>=2,<3 + blinker: blinker + boto: boto + boto: moto<1.0 + botocore: botocore + py34-botocore: PyYAML<5.3 + py34-botocore: jsonpatch<1.25 + botocore: moto>=1.0,<2 + bottle11: bottle>=0.11,<0.12 + bottle12: bottle>=0.12,<0.13 + cassandra35: cassandra-driver>=3.5,<3.6 + cassandra36: cassandra-driver>=3.6,<3.7 + cassandra37: cassandra-driver>=3.7,<3.8 + cassandra38: cassandra-driver>=3.8,<3.9 + cassandra315: cassandra-driver>=3.15,<3.16 + celery31: celery>=3.1,<3.2 + celery40: celery>=4.0,<4.1 + celery41: celery>=4.1,<4.2 + celery42: celery>=4.2,<4.3 + celery43: celery>=4.3,<4.4 + consul07: python-consul>=0.7,<1.0 + consul10: python-consul>=1.0,<1.1 + consul11: python-consul>=1.1,<1.2 + ddtracerun: redis + django18: django>=1.8,<1.9 + django111: django>=1.11,<1.12 + django200: django>=2.0,<2.1 + djangopylibmc06: django-pylibmc>=0.6,<0.7 + djangoredis45: django-redis>=4.5,<4.6 + djangorestframework34: djangorestframework>=3.4,<3.5 + djangorestframework37: djangorestframework>=3.7,<3.8 + djangorestframework38: djangorestframework>=3.8,<3.9 + dogpilecache06: dogpile.cache==0.6.* + dogpilecache07: dogpile.cache==0.7.* + dogpilecache08: dogpile.cache==0.8.* + dogpilecachelatest: dogpile.cache + elasticsearch16: elasticsearch>=1.6,<1.7 + elasticsearch17: elasticsearch>=1.7,<1.8 + elasticsearch18: elasticsearch>=1.8,<1.9 + elasticsearch23: elasticsearch>=2.3,<2.4 + elasticsearch24: elasticsearch>=2.4,<2.5 + elasticsearch51: elasticsearch>=5.1,<5.2 + elasticsearch52: elasticsearch>=5.2,<5.3 + elasticsearch53: elasticsearch>=5.3,<5.4 + elasticsearch54: elasticsearch>=5.4,<5.5 + elasticsearch63: elasticsearch>=6.3,<6.4 + elasticsearch64: elasticsearch>=6.4,<6.5 + # elasticsearch1 package + elasticsearch1100: elasticsearch1>=1.10.0,<1.11.0 + # elasticsearch2 package + elasticsearch250: elasticsearch2>=2.5.0,<2.6.0 + # elasticsearch5 package + elasticsearch550: elasticsearch5>=5.5.0,<5.6.0 + # elasticsearch6 package + elasticsearch640: elasticsearch6>=6.4.0,<6.5.0 + falcon10: falcon>=1.0,<1.1 + falcon11: falcon>=1.1,<1.2 + falcon12: falcon>=1.2,<1.3 + falcon13: falcon>=1.3,<1.4 + falcon14: falcon>=1.4,<1.5 + flask09: flask>=0.9,<0.10 + flask010: flask>=0.10,<0.11 + flask011: flask>=0.11,<0.12 + flask012: flask>=0.12,<0.13 + flask10: flask>=1.0,<1.1 + flaskcache012: flask_cache>=0.12,<0.13 + flaskcache013: flask_cache>=0.13,<0.14 + futures: futures + futures30: futures>=3.0,<3.1 + futures31: futures>=3.1,<3.2 + futures32: futures>=3.2,<3.3 + gevent10: gevent>=1.0,<1.1 + gevent11: gevent>=1.1,<1.2 + gevent12: gevent>=1.2,<1.3 + gevent13: gevent>=1.3,<1.4 + gevent14: gevent>=1.4,<1.5 + grpc112: grpcio>=1.12.0,<1.13.0 + grpc113: grpcio>=1.13.0,<1.14.0 + grpc114: grpcio>=1.14.0,<1.15.0 + grpc115: grpcio>=1.15.0,<1.16.0 + grpc116: grpcio>=1.16.0,<1.17.0 + grpc117: grpcio>=1.17.0,<1.18.0 + grpc118: grpcio>=1.18.0,<1.19.0 + grpc119: grpcio>=1.19.0,<1.20.0 + grpc120: grpcio>=1.20.0,<1.21.0 + grpc121: grpcio>=1.21.0,<1.22.0 + grpc122: grpcio>=1.22.0,<1.23.0 + grpc112: googleapis-common-protos + grpc113: googleapis-common-protos + grpc114: googleapis-common-protos + grpc115: googleapis-common-protos + grpc116: googleapis-common-protos + grpc117: googleapis-common-protos + grpc118: googleapis-common-protos + grpc119: googleapis-common-protos + grpc120: googleapis-common-protos + grpc121: googleapis-common-protos + grpc122: googleapis-common-protos + jinja27: jinja2>=2.7,<2.8 + jinja28: jinja2>=2.8,<2.9 + jinja29: jinja2>=2.9,<2.10 + jinja210: jinja2>=2.10,<2.11 + mako100: mako>=1.0.0,<1.1.0 + mako010: mako>=0.1.0,<1.0.0 + memcached: python-memcached + molten070: molten>=0.7.0,<0.7.2 + molten072: molten>=0.7.2,<0.8.0 + mongoengine015: mongoengine>=0.15<0.16 + mongoengine016: mongoengine>=0.16<0.17 + mongoengine017: mongoengine>=0.17<0.18 + mongoengine018: mongoengine>=0.18<0.19 + mongoenginelatest: mongoengine>=0.18 + mysqlconnector: mysql-connector-python!=8.0.18 + mysqldb12: mysql-python>=1.2,<1.3 + mysqlclient13: mysqlclient>=1.3,<1.4 +# webob is required for Pylons < 1.0 + pylons096: pylons>=0.9.6,<0.9.7 + pylons096: webob<1.1 + pylons097: pylons>=0.9.7,<0.9.8 + pylons097: webob<1.1 + pylons010: pylons>=0.10,<0.11 + pylons010: webob<1.1 + pylons10: pylons>=1.0,<1.1 + pylibmc: pylibmc + pylibmc140: pylibmc>=1.4.0,<1.5.0 + pylibmc150: pylibmc>=1.5.0,<1.6.0 + pymemcache130: pymemcache>=1.3.0,<1.4.0 + pymemcache140: pymemcache>=1.4.0,<1.5.0 + pymongo30: pymongo>=3.0,<3.1 + pymongo31: pymongo>=3.1,<3.2 + pymongo32: pymongo>=3.2,<3.3 + pymongo33: pymongo>=3.3,<3.4 + pymongo34: pymongo>=3.4,<3.5 + pymongo36: pymongo>=3.6,<3.7 + pymongo37: pymongo>=3.7,<3.8 + pymongo38: pymongo>=3.8,<3.9 + pymongo39: pymongo>=3.9,<3.10 + pymongolatest: pymongo>=3.9 + pymysql07: pymysql>=0.7,<0.8 + pymysql08: pymysql>=0.8,<0.9 + pymysql09: pymysql>=0.9,<0.10 + pyramid17: pyramid>=1.7,<1.8 + pyramid18: pyramid>=1.8,<1.9 + pyramid19: pyramid>=1.9,<1.10 + psycopg224: psycopg2>=2.4,<2.5 + psycopg225: psycopg2>=2.5,<2.6 + psycopg226: psycopg2>=2.6,<2.7 + psycopg227: psycopg2>=2.7,<2.8 + psycopg228: psycopg2>=2.8,<2.9 + redis26: redis>=2.6,<2.7 + redis27: redis>=2.7,<2.8 + redis28: redis>=2.8,<2.9 + redis29: redis>=2.9,<2.10 + redis210: redis>=2.10,<2.11 + redis300: redis>=3.0.0,<3.1.0 + redis320: redis>=3.2.0,<3.3.0 + rediscluster135: redis-py-cluster>=1.3.5,<1.3.6 + rediscluster136: redis-py-cluster>=1.3.6,<1.3.7 + kombu44: kombu>=4.4,<4.5 + kombu43: kombu>=4.3,<4.4 + kombu42: kombu>=4.2,<4.3 + kombu41: kombu>=4.1,<4.2 + kombu40: kombu>=4.0,<4.1 + requests_contrib: requests-mock>=1.4 + requests200: requests>=2.0,<2.1 + requests208: requests>=2.8,<2.9 + requests209: requests>=2.9,<2.10 + requests210: requests>=2.10,<2.11 + requests211: requests>=2.11,<2.12 + requests212: requests>=2.12,<2.13 + requests213: requests>=2.13,<2.14 + requests218: requests>=2.18,<2.19 + requests219: requests>=2.19,<2.20 + sqlalchemy10: sqlalchemy>=1.0,<1.1 + sqlalchemy11: sqlalchemy>=1.1,<1.2 + sqlalchemy12: sqlalchemy>=1.2,<1.3 + tornado40: tornado>=4.0,<4.1 + tornado41: tornado>=4.1,<4.2 + tornado42: tornado>=4.2,<4.3 + tornado43: tornado>=4.3,<4.4 + tornado44: tornado>=4.4,<4.5 + tornado45: tornado>=4.5,<4.6 + tornado50: tornado>=5.0,<5.1 + tornado51: tornado>=5.1,<5.2 + tornado60: tornado>=6.0,<6.1 + vertica060: vertica-python>=0.6.0,<0.7.0 + vertica070: vertica-python>=0.7.0,<0.8.0 + webtest: WebTest + +# pass along test env variables +passenv=TEST_* + +commands = +# run only essential tests related to the tracing client + tracer: pytest {posargs} --ignore="tests/contrib" --ignore="tests/test_integration.py" --ignore="tests/commands" --ignore="tests/opentracer" --ignore="tests/unit" --ignore="tests/internal" tests +# run only the `ddtrace.internal` tests + internal: pytest {posargs} tests/internal +# run only the opentrace tests + opentracer: pytest {posargs} tests/opentracer/test_tracer.py tests/opentracer/test_span.py tests/opentracer/test_span_context.py tests/opentracer/test_dd_compatibility.py tests/opentracer/test_utils.py + opentracer_asyncio: pytest {posargs} tests/opentracer/test_tracer_asyncio.py + opentracer_tornado-tornado{40,41,42,43,44}: pytest {posargs} tests/opentracer/test_tracer_tornado.py + opentracer_gevent: pytest {posargs} tests/opentracer/test_tracer_gevent.py +# integration tests + integration: pytest {posargs} tests/test_integration.py +# Contribs + aiobotocore_contrib-{py34,py35,py36,py37}: pytest {posargs} tests/contrib/aiobotocore + aiopg_contrib-{py34,py35,py36,py37}: pytest {posargs} tests/contrib/aiopg + aiohttp_contrib: pytest {posargs} tests/contrib/aiohttp + algoliasearch_contrib: pytest {posargs} tests/contrib/algoliasearch + asyncio_contrib: pytest {posargs} tests/contrib/asyncio + boto_contrib: pytest {posargs} tests/contrib/boto + botocore_contrib: pytest {posargs} tests/contrib/botocore + bottle_contrib: pytest {posargs} --ignore="tests/contrib/bottle/test_autopatch.py" tests/contrib/bottle/ + bottle_contrib_autopatch: python tests/ddtrace_run.py pytest {posargs} tests/contrib/bottle/test_autopatch.py + cassandra_contrib: pytest {posargs} tests/contrib/cassandra + celery_contrib: pytest {posargs} tests/contrib/celery + consul_contrib: pytest {posargs} tests/contrib/consul + dbapi_contrib: pytest {posargs} tests/contrib/dbapi + django_contrib: pytest {posargs} tests/contrib/django + django_contrib_autopatch: python tests/ddtrace_run.py pytest {posargs} tests/contrib/django + django_drf_contrib: pytest {posargs} tests/contrib/djangorestframework + dogpile_contrib: pytest {posargs} tests/contrib/dogpile_cache + elasticsearch_contrib: pytest {posargs} tests/contrib/elasticsearch + falcon_contrib: pytest {posargs} tests/contrib/falcon/test_middleware.py tests/contrib/falcon/test_distributed_tracing.py + falcon_contrib_autopatch: python tests/ddtrace_run.py pytest {posargs} tests/contrib/falcon/test_autopatch.py + flask_contrib: pytest {posargs} tests/contrib/flask + flask_contrib_autopatch: python tests/ddtrace_run.py pytest {posargs} tests/contrib/flask_autopatch + flask_cache_contrib: pytest {posargs} tests/contrib/flask_cache + futures_contrib: pytest {posargs} tests/contrib/futures + gevent_contrib: pytest {posargs} tests/contrib/gevent + grpc_contrib: pytest {posargs} tests/contrib/grpc + httplib_contrib: pytest {posargs} tests/contrib/httplib + jinja2_contrib: pytest {posargs} tests/contrib/jinja2 + mako_contrib: pytest {posargs} tests/contrib/mako + molten_contrib: pytest {posargs} tests/contrib/molten + mongoengine_contrib: pytest {posargs} tests/contrib/mongoengine + mysql_contrib: pytest {posargs} tests/contrib/mysql + mysqldb_contrib: pytest {posargs} tests/contrib/mysqldb + psycopg_contrib: pytest {posargs} tests/contrib/psycopg + pylibmc_contrib: pytest {posargs} tests/contrib/pylibmc + pylons_contrib: pytest {posargs} tests/contrib/pylons + pymemcache_contrib: pytest {posargs} --ignore="tests/contrib/pymemcache/autopatch" tests/contrib/pymemcache/ + pymemcache_contrib_autopatch: python tests/ddtrace_run.py pytest {posargs} tests/contrib/pymemcache/autopatch/ + pymongo_contrib: pytest {posargs} tests/contrib/pymongo + pymysql_contrib: pytest {posargs} tests/contrib/pymysql + pyramid_contrib: pytest {posargs} tests/contrib/pyramid/test_pyramid.py + pyramid_contrib_autopatch: python tests/ddtrace_run.py pytest {posargs} tests/contrib/pyramid/test_pyramid_autopatch.py + redis_contrib: pytest {posargs} tests/contrib/redis + rediscluster_contrib: pytest {posargs} tests/contrib/rediscluster + requests_contrib: pytest {posargs} tests/contrib/requests + requests_gevent_contrib: pytest {posargs} tests/contrib/requests_gevent + kombu_contrib: pytest {posargs} tests/contrib/kombu + sqlalchemy_contrib: pytest {posargs} tests/contrib/sqlalchemy + sqlite3_contrib: pytest {posargs} tests/contrib/sqlite3 + tornado_contrib: pytest {posargs} tests/contrib/tornado + vertica_contrib: pytest {posargs} tests/contrib/vertica/ +# run subsets of the tests for particular library versions + ddtracerun: pytest {posargs} tests/commands/test_runner.py + test_utils: pytest {posargs} tests/contrib/test_utils.py + test_logging: pytest {posargs} tests/contrib/logging/ +# Unit tests: pytest based test suite that do not require any additional dependency. + unit_tests: pytest {posargs} tests/unit + benchmarks: pytest --benchmark-only {posargs} tests/benchmark.py + +[testenv:wait] +commands=python tests/wait-for-services.py {posargs} +basepython=python +deps= + cassandra-driver + psycopg2 + mysql-connector-python!=8.0.18 + redis-py-cluster>=1.3.6,<1.4.0 + vertica-python>=0.6.0,<0.7.0 + kombu>=4.2.0,<4.3.0 + + +# this is somewhat flaky (can fail and still be up) so try the tests anyway +ignore_outcome=true + +[testenv:black] +deps=black +commands=black --check . +basepython=python3.7 + +[testenv:flake8] +deps= + flake8>=3.7,<=3.8 + flake8-blind-except + flake8-builtins + flake8-docstrings + flake8-logging-format + flake8-rst-docstrings + # needed for some features from flake8-rst-docstrings + pygments +commands=flake8 . +basepython=python3.7 + +# do not use develop mode with celery as running multiple python versions within +# same job will cause problem for tests that use ddtrace-run +[celery_contrib] +usedevelop = False +[testenv:celery_contrib-py27-celery31-redis210] +usedevelop = {[celery_contrib]usedevelop} +[testenv:celery_contrib-py34-celery31-redis210] +usedevelop = {[celery_contrib]usedevelop} +[testenv:celery_contrib-py35-celery31-redis210] +usedevelop = {[celery_contrib]usedevelop} +[testenv:celery_contrib-py36-celery31-redis210] +usedevelop = {[celery_contrib]usedevelop} +[testenv:celery_contrib-py27-celery40-redis210-kombu43] +usedevelop = {[celery_contrib]usedevelop} +[testenv:celery_contrib-py27-celery40-redis320-kombu44] +usedevelop = {[celery_contrib]usedevelop} +[testenv:celery_contrib-py27-celery41-redis210-kombu43] +usedevelop = {[celery_contrib]usedevelop} +[testenv:celery_contrib-py27-celery41-redis320-kombu44] +usedevelop = {[celery_contrib]usedevelop} +[testenv:celery_contrib-py34-celery40-redis210-kombu43] +usedevelop = {[celery_contrib]usedevelop} +[testenv:celery_contrib-py34-celery40-redis320-kombu44] +usedevelop = {[celery_contrib]usedevelop} +[testenv:celery_contrib-py34-celery41-redis210-kombu43] +usedevelop = {[celery_contrib]usedevelop} +[testenv:celery_contrib-py34-celery41-redis320-kombu44] +usedevelop = {[celery_contrib]usedevelop} +[testenv:celery_contrib-py35-celery40-redis210-kombu43] +usedevelop = {[celery_contrib]usedevelop} +[testenv:celery_contrib-py35-celery40-redis320-kombu44] +usedevelop = {[celery_contrib]usedevelop} +[testenv:celery_contrib-py35-celery41-redis210-kombu43] +usedevelop = {[celery_contrib]usedevelop} +[testenv:celery_contrib-py35-celery41-redis320-kombu44] +usedevelop = {[celery_contrib]usedevelop} +[testenv:celery_contrib-py36-celery40-redis210-kombu43] +usedevelop = {[celery_contrib]usedevelop} +[testenv:celery_contrib-py36-celery40-redis320-kombu44] +usedevelop = {[celery_contrib]usedevelop} +[testenv:celery_contrib-py36-celery41-redis210-kombu43] +usedevelop = {[celery_contrib]usedevelop} +[testenv:celery_contrib-py36-celery41-redis320-kombu44] +usedevelop = {[celery_contrib]usedevelop} +[testenv:celery_contrib-py27-celery42-redis210-kombu43] +usedevelop = {[celery_contrib]usedevelop} +[testenv:celery_contrib-py34-celery42-redis210-kombu43] +usedevelop = {[celery_contrib]usedevelop} +[testenv:celery_contrib-py35-celery42-redis210-kombu43] +usedevelop = {[celery_contrib]usedevelop} +[testenv:celery_contrib-py36-celery42-redis210-kombu43] +usedevelop = {[celery_contrib]usedevelop} +[testenv:celery_contrib-py27-celery43-redis320-kombu44] +usedevelop = {[celery_contrib]usedevelop} +[testenv:celery_contrib-py34-celery43-redis320-kombu44] +usedevelop = {[celery_contrib]usedevelop} +[testenv:celery_contrib-py35-celery43-redis320-kombu44] +usedevelop = {[celery_contrib]usedevelop} +[testenv:celery_contrib-py36-celery43-redis320-kombu44] +usedevelop = {[celery_contrib]usedevelop} +[testenv:celery_contrib-py37-celery43-redis320-kombu44] +usedevelop = {[celery_contrib]usedevelop} + +[falcon_autopatch] +setenv = + DATADOG_SERVICE_NAME=my-falcon +[testenv:falcon_contrib_autopatch-py27-falcon10] +setenv = + {[falcon_autopatch]setenv} +[testenv:falcon_contrib_autopatch-py27-falcon11] +setenv = + {[falcon_autopatch]setenv} +[testenv:falcon_contrib_autopatch-py27-falcon12] +setenv = + {[falcon_autopatch]setenv} +[testenv:falcon_contrib_autopatch-py27-falcon13] +setenv = + {[falcon_autopatch]setenv} +[testenv:falcon_contrib_autopatch-py27-falcon14] +setenv = + {[falcon_autopatch]setenv} +[testenv:falcon_contrib_autopatch-py34-falcon10] +setenv = + {[falcon_autopatch]setenv} +[testenv:falcon_contrib_autopatch-py34-falcon11] +setenv = + {[falcon_autopatch]setenv} +[testenv:falcon_contrib_autopatch-py34-falcon12] +setenv = + {[falcon_autopatch]setenv} +[testenv:falcon_contrib_autopatch-py34-falcon13] +setenv = + {[falcon_autopatch]setenv} +[testenv:falcon_contrib_autopatch-py34-falcon14] +setenv = + {[falcon_autopatch]setenv} +[testenv:falcon_contrib_autopatch-py35-falcon10] +setenv = + {[falcon_autopatch]setenv} +[testenv:falcon_contrib_autopatch-py35-falcon11] +setenv = + {[falcon_autopatch]setenv} +[testenv:falcon_contrib_autopatch-py35-falcon12] +setenv = + {[falcon_autopatch]setenv} +[testenv:falcon_contrib_autopatch-py35-falcon13] +setenv = + {[falcon_autopatch]setenv} +[testenv:falcon_contrib_autopatch-py35-falcon14] +setenv = + {[falcon_autopatch]setenv} +[testenv:falcon_contrib_autopatch-py36-falcon10] +setenv = + {[falcon_autopatch]setenv} +[testenv:falcon_contrib_autopatch-py36-falcon11] +setenv = + {[falcon_autopatch]setenv} +[testenv:falcon_contrib_autopatch-py36-falcon12] +setenv = + {[falcon_autopatch]setenv} +[testenv:falcon_contrib_autopatch-py36-falcon13] +setenv = + {[falcon_autopatch]setenv} +[testenv:falcon_contrib_autopatch-py36-falcon14] +setenv = + {[falcon_autopatch]setenv} +[testenv:falcon_contrib_autopatch-py37-falcon10] +setenv = + {[falcon_autopatch]setenv} +[testenv:falcon_contrib_autopatch-py37-falcon11] +setenv = + {[falcon_autopatch]setenv} +[testenv:falcon_contrib_autopatch-py37-falcon12] +setenv = + {[falcon_autopatch]setenv} +[testenv:falcon_contrib_autopatch-py37-falcon13] +setenv = + {[falcon_autopatch]setenv} +[testenv:falcon_contrib_autopatch-py37-falcon14] +setenv = + {[falcon_autopatch]setenv} + + +[pyramid_autopatch] +setenv = + DATADOG_SERVICE_NAME = foobar + DATADOG_PYRAMID_DISTRIBUTED_TRACING = True +[testenv:pyramid_contrib_autopatch-py27-pyramid17-webtest] +setenv = + {[pyramid_autopatch]setenv} + +[testenv:pyramid_contrib_autopatch-py27-pyramid18-webtest] +setenv = + {[pyramid_autopatch]setenv} +[testenv:pyramid_contrib_autopatch-py27-pyramid19-webtest] +setenv = + {[pyramid_autopatch]setenv} +[testenv:pyramid_contrib_autopatch-py34-pyramid17-webtest] +setenv = + {[pyramid_autopatch]setenv} +[testenv:pyramid_contrib_autopatch-py34-pyramid18-webtest] +setenv = + {[pyramid_autopatch]setenv} +[testenv:pyramid_contrib_autopatch-py34-pyramid19-webtest] +setenv = + {[pyramid_autopatch]setenv} +[testenv:pyramid_contrib_autopatch-py35-pyramid17-webtest] +setenv = + {[pyramid_autopatch]setenv} +[testenv:pyramid_contrib_autopatch-py35-pyramid18-webtest] +setenv = + {[pyramid_autopatch]setenv} +[testenv:pyramid_contrib_autopatch-py35-pyramid19-webtest] +setenv = + {[pyramid_autopatch]setenv} +[testenv:pyramid_contrib_autopatch-py36-pyramid17-webtest] +setenv = + {[pyramid_autopatch]setenv} +[testenv:pyramid_contrib_autopatch-py36-pyramid18-webtest] +setenv = + {[pyramid_autopatch]setenv} +[testenv:pyramid_contrib_autopatch-py36-pyramid19-webtest] +setenv = + {[pyramid_autopatch]setenv} +[testenv:pyramid_contrib_autopatch-py37-pyramid17-webtest] +setenv = + {[pyramid_autopatch]setenv} +[testenv:pyramid_contrib_autopatch-py37-pyramid18-webtest] +setenv = + {[pyramid_autopatch]setenv} +[testenv:pyramid_contrib_autopatch-py37-pyramid19-webtest] +setenv = + {[pyramid_autopatch]setenv} + + +[flask_autopatch] +setenv = + DATADOG_SERVICE_NAME = test.flask.service + DATADOG_PATCH_MODULES = jinja2:false +[testenv:flask_contrib_autopatch-py27-flask010-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py27-flask011-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py27-flask012-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py27-flask10-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py34-flask010-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py34-flask011-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py34-flask012-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py34-flask10-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py35-flask010-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py35-flask011-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py35-flask012-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py35-flask10-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py36-flask010-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py36-flask011-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py36-flask012-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py36-flask10-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py37-flask010-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py37-flask011-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py37-flask012-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py37-flask10-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py27-flask010-flaskcache013-memcached-redis210-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py27-flask011-flaskcache013-memcached-redis210-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py27-flask012-flaskcache013-memcached-redis210-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py34-flask010-flaskcache013-memcached-redis210-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py34-flask011-flaskcache013-memcached-redis210-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py34-flask012-flaskcache013-memcached-redis210-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py35-flask010-flaskcache013-memcached-redis210-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py35-flask011-flaskcache013-memcached-redis210-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py35-flask012-flaskcache013-memcached-redis210-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py36-flask010-flaskcache013-memcached-redis210-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py36-flask011-flaskcache013-memcached-redis210-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py36-flask012-flaskcache013-memcached-redis210-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py37-flask010-flaskcache013-memcached-redis210-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py37-flask011-flaskcache013-memcached-redis210-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py37-flask012-flaskcache013-memcached-redis210-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py27-flask010-flaskcache012-memcached-redis210-blinker] +setenv = + {[flask_autopatch]setenv} +[testenv:flask_contrib_autopatch-py27-flask011-flaskcache012-memcached-redis210-blinker] +setenv = + {[flask_autopatch]setenv} + + +[bottle_autopatch] +setenv = + DATADOG_SERVICE_NAME = bottle-app +[testenv:bottle_contrib_autopatch-py27-bottle11-webtest] +setenv = + {[bottle_autopatch]setenv} +[testenv:bottle_contrib_autopatch-py34-bottle11-webtest] +setenv = + {[bottle_autopatch]setenv} +[testenv:bottle_contrib_autopatch-py35-bottle11-webtest] +setenv = + {[bottle_autopatch]setenv} +[testenv:bottle_contrib_autopatch-py36-bottle11-webtest] +setenv = + {[bottle_autopatch]setenv} +[testenv:bottle_contrib_autopatch-py37-bottle11-webtest] +setenv = + {[bottle_autopatch]setenv} +[testenv:bottle_contrib_autopatch-py27-bottle12-webtest] +setenv = + {[bottle_autopatch]setenv} +[testenv:bottle_contrib_autopatch-py34-bottle12-webtest] +setenv = + {[bottle_autopatch]setenv} +[testenv:bottle_contrib_autopatch-py35-bottle12-webtest] +setenv = + {[bottle_autopatch]setenv} +[testenv:bottle_contrib_autopatch-py36-bottle12-webtest] +setenv = + {[bottle_autopatch]setenv} +[testenv:bottle_contrib_autopatch-py37-bottle12-webtest] +setenv = + {[bottle_autopatch]setenv} + + +# DEV: We use `conftest.py` as a local pytest plugin to configure hooks for collection +[pytest] +# Common directories to ignore +addopts = --ignore "tests/utils" --ignore "tests/base" +# DEV: The default is `test_*\.py` which will miss `test.py` files +python_files = test*\.py + +[flake8] +max-line-length=120 +exclude= + .ddtox,.tox, + .git,__pycache__, + .eggs,*.egg, + build, + # We shouldn't lint our vendored dependencies + ddtrace/vendor/ +# Ignore: +# A003: XXX is a python builtin, consider renaming the class attribute +# G201 Logging: .exception(...) should be used instead of .error(..., exc_info=True) +# E231,W503: not respected by black +# We ignore most of the D errors because there are too many; the goal is to fix them eventually +ignore = W503,E231,A003,G201,D100,D101,D102,D103,D104,D105,D106,D107,D200,D202,D204,D205,D208,D210,D300,D400,D401,D403,D413 +enable-extensions=G +rst-roles = class,meth,obj,ref +rst-directives = py:data