diff --git a/config/configauth/configauth.go b/config/configauth/configauth.go new file mode 100644 index 00000000000..176fb91ef63 --- /dev/null +++ b/config/configauth/configauth.go @@ -0,0 +1,49 @@ +// Copyright The OpenTelemetry Authors +// +// 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. + +package configauth + +// Authentication defines the auth settings for the receiver +type Authentication struct { + // The attribute (header name) to look for auth data. Optional, default value: "authentication". + Attribute string `mapstructure:"attribute"` + + // OIDC configures this receiver to use the given OIDC provider as the backend for the authentication mechanism. + // Required. + OIDC *OIDC `mapstructure:"oidc"` +} + +// OIDC defines the OpenID Connect properties for this processor +type OIDC struct { + // IssuerURL is the base URL for the OIDC provider. + // Required. + IssuerURL string `mapstructure:"issuer_url"` + + // Audience of the token, used during the verification. + // For example: "https://accounts.google.com" or "https://login.salesforce.com". + // Required. + Audience string `mapstructure:"audience"` + + // The local path for the issuer CA's TLS server cert. + // Optional. + IssuerCAPath string `mapstructure:"issuer_ca_path"` + + // The claim to use as the username, in case the token's 'sub' isn't the suitable source. + // Optional. + UsernameClaim string `mapstructure:"username_claim"` + + // The claim that holds the subject's group membership information. + // Optional. + GroupsClaim string `mapstructure:"groups_claim"` +} diff --git a/config/configauth/empty_test.go b/config/configauth/empty_test.go new file mode 100644 index 00000000000..1084c8a8b90 --- /dev/null +++ b/config/configauth/empty_test.go @@ -0,0 +1,15 @@ +// Copyright The OpenTelemetry Authors +// +// 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. + +package configauth diff --git a/config/configgrpc/configgrpc.go b/config/configgrpc/configgrpc.go index 03e98d34c4f..3b91fa4edfe 100644 --- a/config/configgrpc/configgrpc.go +++ b/config/configgrpc/configgrpc.go @@ -16,6 +16,7 @@ package configgrpc import ( + "context" "fmt" "net" "strings" @@ -27,8 +28,10 @@ import ( "google.golang.org/grpc/encoding/gzip" "google.golang.org/grpc/keepalive" + "go.opentelemetry.io/collector/config/configauth" "go.opentelemetry.io/collector/config/confignet" "go.opentelemetry.io/collector/config/configtls" + "go.opentelemetry.io/collector/internal/auth" ) // Compression gRPC keys for supported compression types within collector @@ -157,9 +160,12 @@ type GRPCServerSettings struct { // Keepalive anchor for all the settings related to keepalive. Keepalive *KeepaliveServerConfig `mapstructure:"keepalive,omitempty"` + + // Auth for this receiver + Auth *configauth.Authentication `mapstructure:"auth,omitempty"` } -// ToServerOption maps configgrpc.GRPCClientSettings to a slice of dial options for gRPC +// ToDialOptions maps configgrpc.GRPCClientSettings to a slice of dial options for gRPC func (gcs *GRPCClientSettings) ToDialOptions() ([]grpc.DialOption, error) { var opts []grpc.DialOption if gcs.Compression != "" { @@ -287,6 +293,22 @@ func (gss *GRPCServerSettings) ToServerOption() ([]grpc.ServerOption, error) { } } + if gss.Auth != nil { + auth, err := auth.New(*gss.Auth) + if err != nil { + return nil, err + } + + // perhaps we should use a timeout here? + if err := auth.Start(context.Background()); err != nil { + return nil, err + } + + // TODO: we need a hook to call auth.Close() + + opts = append(opts, grpc.UnaryInterceptor(auth.UnaryInterceptor), grpc.StreamInterceptor(auth.StreamInterceptor)) + } + return opts, nil } diff --git a/config/configgrpc/configgrpc_test.go b/config/configgrpc/configgrpc_test.go index 4010db38043..035176fd6a2 100644 --- a/config/configgrpc/configgrpc_test.go +++ b/config/configgrpc/configgrpc_test.go @@ -22,8 +22,10 @@ import ( "time" "github.com/stretchr/testify/assert" + "github.com/stretchr/testify/require" "google.golang.org/grpc" + "go.opentelemetry.io/collector/config/configauth" "go.opentelemetry.io/collector/config/confignet" "go.opentelemetry.io/collector/config/configtls" otelcol "go.opentelemetry.io/collector/internal/data/opentelemetry-proto-gen/collector/trace/v1" @@ -74,7 +76,7 @@ func TestDefaultGrpcServerSettings(t *testing.T) { assert.Len(t, opts, 0) } -func TestAllGrpcServerSettings(t *testing.T) { +func TestAllGrpcServerSettingsExceptAuth(t *testing.T) { gss := &GRPCServerSettings{ NetAddr: confignet.NetAddr{ Endpoint: "localhost:1234", @@ -107,6 +109,25 @@ func TestAllGrpcServerSettings(t *testing.T) { assert.Len(t, opts, 7) } +func TestGrpcServerAuthSettings(t *testing.T) { + gss := &GRPCServerSettings{} + + // sanity check + _, err := gss.ToServerOption() + require.NoError(t, err) + + // test + gss.Auth = &configauth.Authentication{ + OIDC: &configauth.OIDC{}, + } + opts, err := gss.ToServerOption() + + // verify + // an error here is a positive confirmation that Auth kicked in + assert.Error(t, err) + assert.Nil(t, opts) +} + func TestGRPCClientSettingsError(t *testing.T) { tests := []struct { settings GRPCClientSettings diff --git a/go.mod b/go.mod index 80330d40285..b3236863e49 100644 --- a/go.mod +++ b/go.mod @@ -10,6 +10,7 @@ require ( github.com/cenkalti/backoff v2.2.1+incompatible github.com/census-instrumentation/opencensus-proto v0.3.0 github.com/client9/misspell v0.3.4 + github.com/coreos/go-oidc v2.2.1+incompatible github.com/davecgh/go-spew v1.1.1 github.com/evanphx/json-patch v4.5.0+incompatible // indirect github.com/go-kit/kit v0.10.0 @@ -37,6 +38,7 @@ require ( github.com/orijtech/prometheus-go-metrics-exporter v0.0.5 github.com/ory/go-acc v0.2.6 github.com/pavius/impi v0.0.3 + github.com/pquerna/cachecontrol v0.0.0-20180517163645-1555304b9b35 // indirect github.com/prometheus/client_golang v1.7.1 github.com/prometheus/common v0.11.1 github.com/prometheus/prometheus v1.8.2-0.20200626085723-c448ada63d83 @@ -63,6 +65,7 @@ require ( google.golang.org/grpc v1.32.0 google.golang.org/grpc/examples v0.0.0-20200728065043-dfc0c05b2da9 // indirect google.golang.org/protobuf v1.25.0 + gopkg.in/square/go-jose.v2 v2.5.1 // indirect gopkg.in/yaml.v2 v2.3.0 honnef.co/go/tools v0.0.1-2020.1.5 ) diff --git a/go.sum b/go.sum index 67b860e7b63..119070e1639 100644 --- a/go.sum +++ b/go.sum @@ -54,18 +54,23 @@ github.com/Azure/go-autorest/logger v0.1.0 h1:ruG4BSDXONFRrZZJ2GUXDiUyVpayPmb1Gn github.com/Azure/go-autorest/logger v0.1.0/go.mod h1:oExouG+K6PryycPJfVSxi/koC6LSNgds39diKLz7Vrc= github.com/Azure/go-autorest/tracing v0.5.0 h1:TRn4WjSnkcSy5AEG3pnbtFSwNtwzjr4VYyQflFE619k= github.com/Azure/go-autorest/tracing v0.5.0/go.mod h1:r/s2XiOKccPW3HrqB+W0TQzfbtp2fGCgRFtBroKn4Dk= +github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ= github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo= github.com/DATA-DOG/go-sqlmock v1.3.3/go.mod h1:f/Ixk793poVmq4qj/V1dPUg2JEAKC73Q5eFN3EC/SaM= github.com/DataDog/datadog-go v3.2.0+incompatible/go.mod h1:LButxg5PwREeZtORoXG3tL4fMGNddJ+vMq1mwgfaqoQ= github.com/DataDog/zstd v1.3.6-0.20190409195224-796139022798/go.mod h1:1jcaCB/ufaK+sKp1NBhlGmpz41jOoPQ35bpF36t7BBo= github.com/DataDog/zstd v1.4.4/go.mod h1:1jcaCB/ufaK+sKp1NBhlGmpz41jOoPQ35bpF36t7BBo= +github.com/Djarvur/go-err113 v0.0.0-20200511133814-5174e21577d5 h1:XTrzB+F8+SpRmbhAH8HLxhiiG6nYNwaBZjrFps1oWEk= github.com/Djarvur/go-err113 v0.0.0-20200511133814-5174e21577d5/go.mod h1:4UJr5HIiMZrwgkSPdsjy2uOQExX/WEILpIrO9UPGuXs= github.com/Knetic/govaluate v3.0.1-0.20171022003610-9aa49832a739+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0= +github.com/Masterminds/semver v1.5.0 h1:H65muMkzWKEuNDnfl9d70GUjFniHKHRbFPGBuZ3QEww= github.com/Masterminds/semver v1.5.0/go.mod h1:MB6lktGJrhw8PrUyiEoblNEGEQ+RzHPF078ddwwvV3Y= github.com/NYTimes/gziphandler v0.0.0-20170623195520-56545f4a5d46/go.mod h1:3wb06e3pkSAbeQ52E9H9iFoQsEEwGN64994WTCIhntQ= github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU= +github.com/OneOfOne/xxhash v1.2.5 h1:zl/OfRA6nftbBK9qTohYBJ5xvw6C/oNKizR7cZGl3cI= github.com/OneOfOne/xxhash v1.2.5/go.mod h1:eZbhyaAYD41SGSSsnmcpxVoRiQ/MPUTjUdIIOT9Um7Q= +github.com/OpenPeeDeeP/depguard v1.0.1 h1:VlW4R6jmBIv3/u1JNlawEvJMM4J+dPORPaZasQee8Us= github.com/OpenPeeDeeP/depguard v1.0.1/go.mod h1:xsIw86fROiiwelg+jB2uM9PiKihMMmUx/1V+TNhjQvM= github.com/PuerkitoBio/purell v1.0.0/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0= github.com/PuerkitoBio/purell v1.1.0/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0= @@ -76,9 +81,13 @@ github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWX github.com/Shopify/sarama v1.22.2-0.20190604114437-cd910a683f9f/go.mod h1:XLH1GYJnLVE0XCr6KdJGVJRTwY30moWNJ4sERjXX6fs= github.com/Shopify/sarama v1.27.0 h1:tqo2zmyzPf1+gwTTwhI6W+EXDw4PVSczynpHKFtVAmo= github.com/Shopify/sarama v1.27.0/go.mod h1:aCdj6ymI8uyPEux1JJ9gcaDT6cinjGhNCAhs54taSUo= +github.com/Shopify/toxiproxy v2.1.4+incompatible h1:TKdv8HiTLgE5wdJuEML90aBgNWsokNbMijUGhmcoBJc= github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI= +github.com/Songmu/retry v0.1.0 h1:hPA5xybQsksLR/ry/+t/7cFajPW+dqjmjhzZhioBILA= github.com/Songmu/retry v0.1.0/go.mod h1:7sXIW7eseB9fq0FUvigRcQMVLR9tuHI0Scok+rkpAuA= +github.com/StackExchange/wmi v0.0.0-20180116203802-5d049714c4a6 h1:fLjPD/aNc3UIOA6tDi6QXUemppXK3P9BI7mr2hd6gx8= github.com/StackExchange/wmi v0.0.0-20180116203802-5d049714c4a6/go.mod h1:3eOhrUMpNV+6aFIbp5/iudMxNCF27Vw2OZgy4xEx0Fg= +github.com/VividCortex/gohistogram v1.0.0 h1:6+hBz+qvs0JOrrNhhmR7lFxo5sINxBCGXrdtl/UvroE= github.com/VividCortex/gohistogram v1.0.0/go.mod h1:Pf5mBqqDxYaXu3hDrrU+w6nw50o/4+TcAqDqk/vUH7g= github.com/afex/hystrix-go v0.0.0-20180502004556-fa1af6a1f4f5/go.mod h1:SkGFH1ia65gfNATL8TAiHDNxPzPdmEL5uirI2Uyuz6c= github.com/agnivade/levenshtein v1.0.1/go.mod h1:CURSv5d9Uaml+FovSIICkLbAUZ9S4RqaHDIsdSBg7lM= @@ -123,6 +132,7 @@ github.com/bketelsen/crypt v0.0.3-0.20200106085610-5cbc8cc4026c/go.mod h1:MKsuJm github.com/bmizerany/assert v0.0.0-20160611221934-b7ed37b82869/go.mod h1:Ekp36dRnpXw/yCqJaO+ZrUyxD+3VXMFFr56k5XYrpB4= github.com/bmizerany/pat v0.0.0-20170815010413-6226ea591a40/go.mod h1:8rLXio+WjiTceGBHIoTvn60HIbs7Hm7bcHjyrSqYB9c= github.com/boltdb/bolt v1.3.1/go.mod h1:clJnj/oiGkjum5o1McbSZDSLxVThjynRyGBgiAx27Ps= +github.com/bombsimon/wsl/v3 v3.1.0 h1:E5SRssoBgtVFPcYWUOFJEcgaySgdtTNYzsSKDOY7ss8= github.com/bombsimon/wsl/v3 v3.1.0/go.mod h1:st10JtZYLE4D5sC7b8xV4zTKZwAQjCH/Hy2Pm1FNZIc= github.com/bsm/sarama-cluster v2.1.13+incompatible/go.mod h1:r7ao+4tTNXvWm+VRpRJchr2kQhqxgmAp2iEX5W96gMM= github.com/c-bata/go-prompt v0.2.2/go.mod h1:VzqtzE2ksDBcdln8G7mk2RX9QyGjH+OVqOCSiVIqS34= @@ -144,13 +154,17 @@ github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMn github.com/circonus-labs/circonus-gometrics v2.3.1+incompatible/go.mod h1:nmEj6Dob7S7YxXgwXpfOuvO54S+tGdZdw9fuRZt25Ag= github.com/circonus-labs/circonusllhist v0.1.3/go.mod h1:kMXHVDlOchFAehlya5ePtbp5jckzBHf4XRpQvBOLI+I= github.com/clbanning/x2j v0.0.0-20191024224557-825249438eec/go.mod h1:jMjuTZXRI4dUb/I5gc9Hdhagfvm9+RyrPryS/auMzxE= +github.com/client9/misspell v0.3.4 h1:ta993UF76GwbvJcIo3Y68y/M3WxlpEHPWIGDkJYwzJI= github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw= github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc= github.com/cockroachdb/datadriven v0.0.0-20190809214429-80d97fb3cbaa/go.mod h1:zn76sxSg3SzpJ0PPJaLDCu+Bu0Lg3sKTORVIj19EIF8= +github.com/codahale/hdrhistogram v0.0.0-20161010025455-3a0bb77429bd h1:qMd81Ts1T2OTKmB4acZcyKaMtRnY5Y44NuXGX2GFJ1w= github.com/codahale/hdrhistogram v0.0.0-20161010025455-3a0bb77429bd/go.mod h1:sE/e/2PUdi/liOCUjSTXgM1o87ZssimdTWN964YiIeI= github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk= github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE= github.com/coreos/etcd v3.3.13+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE= +github.com/coreos/go-oidc v2.2.1+incompatible h1:mh48q/BqXqgjVHpy2ZY7WnWAbenxRjsz9N1i1YxjHAk= +github.com/coreos/go-oidc v2.2.1+incompatible/go.mod h1:CgnwVTmzoESiwO9qyAFEMiHoZ1nMCKZlZ9V6mm3/LKc= github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk= github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk= github.com/coreos/go-systemd v0.0.0-20180511133405-39ca1b05acc7/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4= @@ -169,14 +183,17 @@ github.com/dave/jennifer v1.2.0/go.mod h1:fIb+770HOpJ2fmN9EPPKOqm1vMGhB+TwXKMZhr github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/denis-tingajkin/go-header v0.3.1 h1:ymEpSiFjeItCy1FOP+x0M2KdCELdEAHUsNa8F+hHc6w= github.com/denis-tingajkin/go-header v0.3.1/go.mod h1:sq/2IxMhaZX+RRcgHfCRx/m0M5na0fBt4/CRe7Lrji0= github.com/dgraph-io/badger v1.5.3/go.mod h1:VZxzAIRPHRVNRKRo6AXrX9BJegn6il06VMTZVJYCIjQ= github.com/dgraph-io/ristretto v0.0.1/go.mod h1:T40EBc7CJke8TkpiYfGGKAeFjSaxuFXhuXRyumBd6RE= 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v0.0.0-20190329191031-25c5027a8c7b/go.mod h1:vAd38F8PWV+bWy6jNmig1y/TA+kYO4g3RSRF0IAv0no= @@ -202,11 +219,13 @@ github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.m github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98= github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c= github.com/evanphx/json-patch v4.2.0+incompatible/go.mod h1:50XU6AFN0ol/bzJsmQLiYLvXMP4fmwYFNcr97nuDLSk= +github.com/evanphx/json-patch v4.5.0+incompatible h1:ouOWdg56aJriqS0huScTkVXPC5IcNrDCXZ6OoTAWu7M= github.com/evanphx/json-patch v4.5.0+incompatible/go.mod h1:50XU6AFN0ol/bzJsmQLiYLvXMP4fmwYFNcr97nuDLSk= github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4= github.com/fatih/color v1.9.0 h1:8xPHl4/q1VyqGIPif1F+1V3Y3lSmrq01EabUW3CoW5s= github.com/fatih/color v1.9.0/go.mod h1:eQcE1qtQxscV5RaZvpXrrb8Drkc3/DdQ+uUYCNjL+zU= github.com/fogleman/gg 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github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpO github.com/hudl/fargo v1.3.0/go.mod h1:y3CKSmjA+wD2gak7sUSXTAoopbhU08POFhmITJgmKTg= github.com/ianlancetaylor/demangle v0.0.0-20181102032728-5e5cf60278f6/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc= github.com/imdario/mergo v0.3.5/go.mod h1:2EnlNZ0deacrJVfApfmtdGgDfMuh/nq6Ok1EcJh5FfA= +github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM= github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8= github.com/influxdata/flux v0.65.0/go.mod h1:BwN2XG2lMszOoquQaFdPET8FRQfrXiZsWmcMO9rkaVY= github.com/influxdata/influxdb v1.8.0/go.mod h1:SIzcnsjaHRFpmlxpJ4S3NT64qtEKYweNTUMb/vh0OMQ= @@ -551,7 +608,9 @@ github.com/jcmturner/gofork v0.0.0-20190328161633-dc7c13fece03/go.mod h1:MK8+TM0 github.com/jcmturner/gofork v1.0.0 h1:J7uCkflzTEhUZ64xqKnkDxq3kzc96ajM1Gli5ktUem8= github.com/jcmturner/gofork v1.0.0/go.mod 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github.com/sourcegraph/go-diff v0.6.0/go.mod h1:iBszgVvyxdc8SFZ7gm69go2KDdt3ag071iBaWPF6cjs= github.com/spaolacci/murmur3 v0.0.0-20180118202830-f09979ecbc72/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA= +github.com/spaolacci/murmur3 v1.1.0 h1:7c1g84S4BPRrfL5Xrdp6fOJ206sU9y293DDHaoy0bLI= github.com/spaolacci/murmur3 v1.1.0/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA= github.com/spf13/afero v1.1.2/go.mod h1:j4pytiNVoe2o6bmDsKpLACNPDBIoEAkihy7loJ1B0CQ= github.com/spf13/afero v1.2.2 h1:5jhuqJyZCZf2JRofRvN/nIFgIWNzPa3/Vz8mYylgbWc= @@ -923,19 +1012,25 @@ github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= github.com/subosito/gotenv v1.2.0 h1:Slr1R9HxAlEKefgq5jn9U+DnETlIUa6HfgEzj0g5d7s= github.com/subosito/gotenv v1.2.0/go.mod h1:N0PQaV/YGNqwC0u51sEeR/aUtSLEXKX9iv69rRypqCw= +github.com/tcnksm/ghr v0.13.0 h1:a5ZbaUAfiaiw6rEDJVUEDYA9YreZOkh3XAfXHWn8zu8= 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github.com/uudashr/gocognit v1.0.1/go.mod h1:j44Ayx2KW4+oB6SWMv8KsmHzZrOInQav7D3cQMJ5JUM= github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc= github.com/valyala/fasthttp v1.15.1/go.mod h1:YOKImeEosDdBPnxc0gy7INqi3m1zK6A+xl6TwOBhHCA= @@ -993,6 +1090,7 @@ go.uber.org/multierr v1.3.0/go.mod h1:VgVr7evmIr6uPjLBxg28wmKNXyqE9akIJ5XnfpiKl+ go.uber.org/multierr v1.4.0/go.mod h1:VgVr7evmIr6uPjLBxg28wmKNXyqE9akIJ5XnfpiKl+4= go.uber.org/multierr v1.5.0 h1:KCa4XfM8CWFCpxXRGok+Q0SS/0XBhMDbHHGABQLvD2A= go.uber.org/multierr v1.5.0/go.mod h1:FeouvMocqHpRaaGuG9EjoKcStLC43Zu/fmqdUMPcKYU= +go.uber.org/tools v0.0.0-20190618225709-2cfd321de3ee h1:0mgffUl7nfd+FpvXMVz4IDEaUSmT1ysygQC7qYo7sG4= go.uber.org/tools v0.0.0-20190618225709-2cfd321de3ee/go.mod h1:vJERXedbb3MVM5f9Ejo0C68/HhF8uaILCdgjnY+goOA= go.uber.org/zap v1.9.1/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q= go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q= @@ -1046,6 +1144,7 @@ golang.org/x/lint v0.0.0-20190909230951-414d861bb4ac/go.mod h1:6SW0HCj/g11FgYtHl golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc= golang.org/x/lint v0.0.0-20191125180803-fdd1cda4f05f/go.mod h1:5qLYkcX4OjUUV8bRuDixDT3tpyyb+LUpUlRWLxfhWrs= golang.org/x/lint v0.0.0-20200130185559-910be7a94367/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY= +golang.org/x/lint v0.0.0-20200302205851-738671d3881b h1:Wh+f8QHJXR411sJR8/vRBTZ7YapZaRvUcLFFJhusH0k= golang.org/x/lint v0.0.0-20200302205851-738671d3881b/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY= golang.org/x/mobile v0.0.0-20190312151609-d3739f865fa6/go.mod h1:z+o9i4GpDbdi3rU15maQ/Ox0txvL9dWGYEHz965HBQE= golang.org/x/mobile v0.0.0-20190719004257-d2bd2a29d028/go.mod h1:E/iHnbuqvinMTCcRqshq8CkpyQDoeVncDDYHnLhea+o= @@ -1054,6 +1153,7 @@ golang.org/x/mod v0.1.0/go.mod h1:0QHyrYULN0/3qlju5TqG8bIK38QM8yzMo5ekMj3DlcY= golang.org/x/mod 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v0.0.0-20200317015054-43a5402ce75a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= +golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208 h1:qwRHBd0NqMbJxfbotnDhm2ByMI1Shq4Y6oRJo21SGJA= golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sys v0.0.0-20170830134202-bb24a47a89ea/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= golang.org/x/sys v0.0.0-20180823144017-11551d06cbcc/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= @@ -1255,13 +1356,11 @@ golang.org/x/tools v0.0.0-20200603131246-cc40288be839/go.mod h1:EkVYQZoAsY45+roY golang.org/x/tools v0.0.0-20200625211823-6506e20df31f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE= golang.org/x/tools v0.0.0-20200626171337-aa94e735be7f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE= golang.org/x/tools v0.0.0-20200701041122-1837592efa10/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE= -golang.org/x/tools v0.0.0-20200724022722-7017fd6b1305 h1:yaM5S0KcY0lIoZo7Fl+oi91b/DdlU2zuWpfHrpWbCS0= golang.org/x/tools v0.0.0-20200724022722-7017fd6b1305/go.mod h1:njjCfa9FT2d7l9Bc6FUM5FLjQPp3cFF28FI3qnDFljA= golang.org/x/tools v0.0.0-20200812195022-5ae4c3c160a0 h1:SQvH+DjrwqD1hyyQU+K7JegHz1KEZgEwt17p9d6R2eg= golang.org/x/tools v0.0.0-20200812195022-5ae4c3c160a0/go.mod h1:njjCfa9FT2d7l9Bc6FUM5FLjQPp3cFF28FI3qnDFljA= golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= -golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4= golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE= golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= @@ -1339,7 +1438,6 @@ google.golang.org/grpc v1.28.0-pre/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7K google.golang.org/grpc v1.28.0/go.mod h1:rpkK4SK4GF4Ach/+MFLZUBavHOvF2JJB5uozKKal+60= google.golang.org/grpc v1.29.1/go.mod h1:itym6AZVZYACWQqET3MqgPpjcuV5QH3BxFS3IjizoKk= google.golang.org/grpc v1.30.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak= -google.golang.org/grpc v1.31.1 h1:SfXqXS5hkufcdZ/mHtYCh53P2b+92WQq/DZcKLgsFRs= google.golang.org/grpc v1.31.1/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak= google.golang.org/grpc v1.32.0 h1:zWTV+LMdc3kaiJMSTOFz2UgSBgx8RNQoTGiZu3fR9S0= google.golang.org/grpc v1.32.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak= @@ -1361,6 +1459,7 @@ gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLks gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= +gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f h1:BLraFXnmrev5lT+xlilqcH8XK9/i0At2xKjWk4p6zsU= gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= gopkg.in/cheggaaa/pb.v1 v1.0.25/go.mod h1:V/YB90LKu/1FcN3WVnfiiE5oMCibMjukxqG/qStrOgw= gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI= @@ -1378,6 +1477,7 @@ gopkg.in/jcmturner/aescts.v1 v1.0.1 h1:cVVZBK2b1zY26haWB4vbBiZrfFQnfbTVrE3xZq6hr gopkg.in/jcmturner/aescts.v1 v1.0.1/go.mod h1:nsR8qBOg+OucoIW+WMhB3GspUQXq9XorLnQb9XtvcOo= gopkg.in/jcmturner/dnsutils.v1 v1.0.1 h1:cIuC1OLRGZrld+16ZJvvZxVJeKPsvd5eUIvxfoN5hSM= gopkg.in/jcmturner/dnsutils.v1 v1.0.1/go.mod h1:m3v+5svpVOhtFAP/wSz+yzh4Mc0Fg7eRhxkJMWSIz9Q= +gopkg.in/jcmturner/goidentity.v3 v3.0.0 h1:1duIyWiTaYvVx3YX2CYtpJbUFd7/UuPYCfgXtQ3VTbI= gopkg.in/jcmturner/goidentity.v3 v3.0.0/go.mod h1:oG2kH0IvSYNIu80dVAyu/yoefjq1mNfM5bm88whjWx4= gopkg.in/jcmturner/gokrb5.v7 v7.2.3/go.mod h1:l8VISx+WGYp+Fp7KRbsiUuXTTOnxIc3Tuvyavf11/WM= gopkg.in/jcmturner/gokrb5.v7 v7.5.0 h1:a9tsXlIDD9SKxotJMK3niV7rPZAJeX2aD/0yg3qlIrg= @@ -1385,6 +1485,9 @@ gopkg.in/jcmturner/gokrb5.v7 v7.5.0/go.mod h1:l8VISx+WGYp+Fp7KRbsiUuXTTOnxIc3Tuv gopkg.in/jcmturner/rpc.v1 v1.1.0 h1:QHIUxTX1ISuAv9dD2wJ9HWQVuWDX/Zc0PfeC2tjc4rU= gopkg.in/jcmturner/rpc.v1 v1.1.0/go.mod h1:YIdkC4XfD6GXbzje11McwsDuOlZQSb9W4vfLvuNnlv8= gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo= +gopkg.in/square/go-jose.v2 v2.5.1 h1:7odma5RETjNHWJnR32wx8t+Io4djHE1PqxCFx3iiZ2w= +gopkg.in/square/go-jose.v2 v2.5.1/go.mod h1:M9dMgbHiYLoDGQrXy7OpJDJWiKiU//h+vD76mk0e1AI= +gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ= gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw= gopkg.in/warnings.v0 v0.1.2/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRNI= gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74= @@ -1430,8 +1533,11 @@ k8s.io/utils v0.0.0-20200414100711-2df71ebbae66 h1:Ly1Oxdu5p5ZFmiVT71LFgeZETvMfZ k8s.io/utils v0.0.0-20200414100711-2df71ebbae66/go.mod h1:jPW/WVKK9YHAvNhRxK0md/EJ228hCsBRufyofKtW8HA= mvdan.cc/gofumpt v0.0.0-20200709182408-4fd085cb6d5f h1:gi7cb8HTDZ6q8VqsUpkdoFi3vxwHMneQ6+Q5Ap5hjPE= mvdan.cc/gofumpt v0.0.0-20200709182408-4fd085cb6d5f/go.mod h1:9VQ397fNXEnF84t90W4r4TRCQK+pg9f8ugVfyj+S26w= +mvdan.cc/interfacer v0.0.0-20180901003855-c20040233aed h1:WX1yoOaKQfddO/mLzdV4wptyWgoH/6hwLs7QHTixo0I= mvdan.cc/interfacer v0.0.0-20180901003855-c20040233aed/go.mod h1:Xkxe497xwlCKkIaQYRfC7CSLworTXY9RMqwhhCm+8Nc= +mvdan.cc/lint v0.0.0-20170908181259-adc824a0674b h1:DxJ5nJdkhDlLok9K6qO+5290kphDJbHOQO1DFFFTeBo= mvdan.cc/lint v0.0.0-20170908181259-adc824a0674b/go.mod h1:2odslEg/xrtNQqCYg2/jCoyKnw3vv5biOc3JnIcYfL4= +mvdan.cc/unparam v0.0.0-20190720180237-d51796306d8f h1:Cq7MalBHYACRd6EesksG1Q8EoIAKOsiZviGKbOLIej4= mvdan.cc/unparam v0.0.0-20190720180237-d51796306d8f/go.mod h1:4G1h5nDURzA3bwVMZIVpwbkw+04kSxk3rAtzlimaUJw= rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8= rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4= diff --git a/internal/auth/README.md b/internal/auth/README.md new file mode 100644 index 00000000000..47325bcd37c --- /dev/null +++ b/internal/auth/README.md @@ -0,0 +1,17 @@ +# Authentication mechanism for servers + +This module allows server types, such as gRPC and HTTP, to be configured to perform authentication for requests and/or RPCs. Each server type is responsible for getting the request/RPC metadata and passing down to this module via `context.Context`. Currently, only bearer token authentication is supported, although the module is ready to accept new authenticators. + +Examples: +```yaml +receivers: + somereceiver: + grpc: + authentication: + attribute: authorization + oidc: + issuer_url: https://auth.example.com/ + issuer_ca_path: /etc/pki/tls/cert.pem + client_id: my-oidc-client + username_claim: email +``` diff --git a/internal/auth/authenticator.go b/internal/auth/authenticator.go new file mode 100644 index 00000000000..df85b9148ed --- /dev/null +++ b/internal/auth/authenticator.go @@ -0,0 +1,96 @@ +// Copyright The OpenTelemetry Authors +// +// 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. + +package auth + +import ( + "context" + "errors" + "io" + + "google.golang.org/grpc" + "google.golang.org/grpc/metadata" + + "go.opentelemetry.io/collector/config/configauth" +) + +var ( + errNoOIDCProvided = errors.New("no OIDC information provided") + errMetadataNotFound = errors.New("no request metadata found") + defaultAttribute = "authorization" +) + +// Authenticator will authenticate the incoming request/RPC +type Authenticator interface { + io.Closer + + // Authenticate checks whether the given context contains valid auth data. Successfully authenticated calls will always return a nil error and a context with the auth data. + Authenticate(context.Context, map[string][]string) (context.Context, error) + + // Start will + Start(context.Context) error + + // UnaryInterceptor is a helper method to provide a gRPC-compatible UnaryInterceptor, typically calling the authenticator's Authenticate method. + UnaryInterceptor(context.Context, interface{}, *grpc.UnaryServerInfo, grpc.UnaryHandler) (interface{}, error) + + // StreamInterceptor is a helper method to provide a gRPC-compatible StreamInterceptor, typically calling the authenticator's Authenticate method. + StreamInterceptor(interface{}, grpc.ServerStream, *grpc.StreamServerInfo, grpc.StreamHandler) error +} + +type authenticateFunc func(context.Context, map[string][]string) (context.Context, error) +type unaryInterceptorFunc func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler, authenticate authenticateFunc) (interface{}, error) +type streamInterceptorFunc func(srv interface{}, stream grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler, authenticate authenticateFunc) error + +// New creates an authenticator based on the given configuration +func New(cfg configauth.Authentication) (Authenticator, error) { + if cfg.OIDC == nil { + return nil, errNoOIDCProvided + } + + if len(cfg.Attribute) == 0 { + cfg.Attribute = defaultAttribute + } + + return newOIDCAuthenticator(cfg) +} + +func defaultUnaryInterceptor(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler, authenticate authenticateFunc) (interface{}, error) { + headers, ok := metadata.FromIncomingContext(ctx) + if !ok { + return nil, errMetadataNotFound + } + + ctx, err := authenticate(ctx, headers) + if err != nil { + return nil, err + } + + return handler(ctx, req) +} + +func defaultStreamInterceptor(srv interface{}, stream grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler, authenticate authenticateFunc) error { + ctx := stream.Context() + headers, ok := metadata.FromIncomingContext(ctx) + if !ok { + return errMetadataNotFound + } + + // TODO: how to replace the context from the stream? + _, err := authenticate(ctx, headers) + if err != nil { + return err + } + + return handler(srv, stream) +} diff --git a/internal/auth/authenticator_test.go b/internal/auth/authenticator_test.go new file mode 100644 index 00000000000..285c47c95cb --- /dev/null +++ b/internal/auth/authenticator_test.go @@ -0,0 +1,197 @@ +// Copyright The OpenTelemetry Authors +// +// 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. + +package auth + +import ( + "context" + "fmt" + "testing" + + "github.com/stretchr/testify/assert" + "google.golang.org/grpc" + "google.golang.org/grpc/metadata" + + "go.opentelemetry.io/collector/config/configauth" +) + +func TestNew(t *testing.T) { + // test + p, err := New(configauth.Authentication{ + OIDC: &configauth.OIDC{ + Audience: "some-audience", + IssuerURL: "http://example.com", + }, + }) + + // verify + assert.NotNil(t, p) + assert.NoError(t, err) +} + +func TestMissingOIDC(t *testing.T) { + // test + p, err := New(configauth.Authentication{}) + + // verify + assert.Nil(t, p) + assert.Equal(t, errNoOIDCProvided, err) +} + +func TestDefaultUnaryInterceptorAuthSucceeded(t *testing.T) { + // prepare + handlerCalled := false + authCalled := false + authFunc := func(context.Context, map[string][]string) (context.Context, error) { + authCalled = true + return context.Background(), nil + } + handler := func(ctx context.Context, req interface{}) (interface{}, error) { + handlerCalled = true + return nil, nil + } + ctx := metadata.NewIncomingContext(context.Background(), metadata.Pairs("authorization", "some-auth-data")) + + // test + res, err := defaultUnaryInterceptor(ctx, nil, &grpc.UnaryServerInfo{}, handler, authFunc) + + // verify + assert.Nil(t, res) + assert.NoError(t, err) + assert.True(t, authCalled) + assert.True(t, handlerCalled) +} + +func TestDefaultUnaryInterceptorAuthFailure(t *testing.T) { + // prepare + authCalled := false + expectedErr := fmt.Errorf("not authenticated") + authFunc := func(context.Context, map[string][]string) (context.Context, error) { + authCalled = true + return context.Background(), expectedErr + } + handler := func(ctx context.Context, req interface{}) (interface{}, error) { + assert.FailNow(t, "the handler should not have been called on auth failure!") + return nil, nil + } + ctx := metadata.NewIncomingContext(context.Background(), metadata.Pairs("authorization", "some-auth-data")) + + // test + res, err := defaultUnaryInterceptor(ctx, nil, &grpc.UnaryServerInfo{}, handler, authFunc) + + // verify + assert.Nil(t, res) + assert.Equal(t, expectedErr, err) + assert.True(t, authCalled) +} + +func TestDefaultUnaryInterceptorMissingMetadata(t *testing.T) { + // prepare + authFunc := func(context.Context, map[string][]string) (context.Context, error) { + assert.FailNow(t, "the auth func should not have been called!") + return context.Background(), nil + } + handler := func(ctx context.Context, req interface{}) (interface{}, error) { + assert.FailNow(t, "the handler should not have been called!") + return nil, nil + } + + // test + res, err := defaultUnaryInterceptor(context.Background(), nil, &grpc.UnaryServerInfo{}, handler, authFunc) + + // verify + assert.Nil(t, res) + assert.Equal(t, errMetadataNotFound, err) +} + +func TestDefaultStreamInterceptorAuthSucceeded(t *testing.T) { + // prepare + handlerCalled := false + authCalled := false + authFunc := func(context.Context, map[string][]string) (context.Context, error) { + authCalled = true + return context.Background(), nil + } + handler := func(srv interface{}, stream grpc.ServerStream) error { + handlerCalled = true + return nil + } + ctx := metadata.NewIncomingContext(context.Background(), metadata.Pairs("authorization", "some-auth-data")) + streamServer := &mockServerStream{ + ctx: ctx, + } + + // test + err := defaultStreamInterceptor(nil, streamServer, &grpc.StreamServerInfo{}, handler, authFunc) + + // verify + assert.NoError(t, err) + assert.True(t, authCalled) + assert.True(t, handlerCalled) +} + +func TestDefaultStreamInterceptorAuthFailure(t *testing.T) { + // prepare + authCalled := false + expectedErr := fmt.Errorf("not authenticated") + authFunc := func(context.Context, map[string][]string) (context.Context, error) { + authCalled = true + return context.Background(), expectedErr + } + handler := func(srv interface{}, stream grpc.ServerStream) error { + assert.FailNow(t, "the handler should not have been called on auth failure!") + return nil + } + ctx := metadata.NewIncomingContext(context.Background(), metadata.Pairs("authorization", "some-auth-data")) + streamServer := &mockServerStream{ + ctx: ctx, + } + + // test + err := defaultStreamInterceptor(nil, streamServer, &grpc.StreamServerInfo{}, handler, authFunc) + + // verify + assert.Equal(t, expectedErr, err) + assert.True(t, authCalled) +} + +func TestDefaultStreamInterceptorMissingMetadata(t *testing.T) { + // prepare + authFunc := func(context.Context, map[string][]string) (context.Context, error) { + assert.FailNow(t, "the auth func should not have been called!") + return context.Background(), nil + } + handler := func(srv interface{}, stream grpc.ServerStream) error { + assert.FailNow(t, "the handler should not have been called!") + return nil + } + streamServer := &mockServerStream{ + ctx: context.Background(), + } + + // test + err := defaultStreamInterceptor(nil, streamServer, &grpc.StreamServerInfo{}, handler, authFunc) + + // verify + assert.Equal(t, errMetadataNotFound, err) +} + +type mockServerStream struct { + grpc.ServerStream + ctx context.Context +} + +func (m *mockServerStream) Context() context.Context { + return m.ctx +} diff --git a/internal/auth/context.go b/internal/auth/context.go new file mode 100644 index 00000000000..2637f5d5976 --- /dev/null +++ b/internal/auth/context.go @@ -0,0 +1,37 @@ +// Copyright The OpenTelemetry Authors +// +// 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. + +package auth + +import "context" + +var ( + subjectKey = subjectType{} + groupsKey = groupsType{} +) + +type subjectType struct{} +type groupsType struct{} + +// SubjectFromContext returns a list of groups the subject in the context belongs to +func SubjectFromContext(ctx context.Context) (string, bool) { + value, ok := ctx.Value(subjectKey).(string) + return value, ok +} + +// GroupsFromContext returns a list of groups the subject in the context belongs to +func GroupsFromContext(ctx context.Context) ([]string, bool) { + value, ok := ctx.Value(groupsKey).([]string) + return value, ok +} diff --git a/internal/auth/context_test.go b/internal/auth/context_test.go new file mode 100644 index 00000000000..a22ae54d6e8 --- /dev/null +++ b/internal/auth/context_test.go @@ -0,0 +1,94 @@ +// Copyright The OpenTelemetry Authors +// +// 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. + +package auth + +import ( + "context" + "testing" + + "github.com/stretchr/testify/assert" +) + +func TestSubjectFromContext(t *testing.T) { + // prepare + ctx := context.WithValue(context.Background(), subjectKey, "my-subject") + + // test + sub, ok := SubjectFromContext(ctx) + + // verify + assert.Equal(t, "my-subject", sub) + assert.True(t, ok) +} + +func TestSubjectFromContextNotPresent(t *testing.T) { + // prepare + ctx := context.Background() + + // test + sub, ok := SubjectFromContext(ctx) + + // verify + assert.False(t, ok) + assert.Empty(t, sub) +} + +func TestSubjectFromContextWrongType(t *testing.T) { + // prepare + ctx := context.WithValue(context.Background(), subjectKey, 123) + + // test + sub, ok := SubjectFromContext(ctx) + + // verify + assert.False(t, ok) + assert.Empty(t, sub) +} + +func TestGroupsFromContext(t *testing.T) { + // prepare + ctx := context.WithValue(context.Background(), groupsKey, []string{"my-groups"}) + + // test + groups, ok := GroupsFromContext(ctx) + + // verify + assert.Equal(t, []string{"my-groups"}, groups) + assert.True(t, ok) +} + +func TestGroupsFromContextNotPresent(t *testing.T) { + // prepare + ctx := context.Background() + + // test + sub, ok := GroupsFromContext(ctx) + + // verify + assert.False(t, ok) + assert.Empty(t, sub) +} + +func TestGroupsFromContextWrongType(t *testing.T) { + // prepare + ctx := context.WithValue(context.Background(), subjectKey, 123) + + // test + sub, ok := GroupsFromContext(ctx) + + // verify + assert.False(t, ok) + assert.Empty(t, sub) +} diff --git a/internal/auth/oidc_authenticator.go b/internal/auth/oidc_authenticator.go new file mode 100644 index 00000000000..99912103643 --- /dev/null +++ b/internal/auth/oidc_authenticator.go @@ -0,0 +1,247 @@ +// Copyright The OpenTelemetry Authors +// +// 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. + +package auth + +import ( + "context" + "crypto/tls" + "crypto/x509" + "encoding/pem" + "errors" + "fmt" + "io/ioutil" + "net" + "net/http" + "strings" + "time" + + "github.com/coreos/go-oidc" + "google.golang.org/grpc" + + "go.opentelemetry.io/collector/config/configauth" +) + +type oidcAuthenticator struct { + attribute string + config configauth.OIDC + provider *oidc.Provider + verifier *oidc.IDTokenVerifier + + unaryInterceptor unaryInterceptorFunc + streamInterceptor streamInterceptorFunc +} + +var ( + _ Authenticator = (*oidcAuthenticator)(nil) + + errNoClientIDProvided = errors.New("no ClientID provided for the OIDC configuration") + errNoIssuerURL = errors.New("no IssuerURL provided for the OIDC configuration") + errInvalidAuthenticationHeaderFormat = errors.New("invalid authorization header format") + errFailedToObtainClaimsFromToken = errors.New("failed to get the subject from the token issued by the OIDC provider") + errClaimNotFound = errors.New("username claim from the OIDC configuration not found on the token returned by the OIDC provider") + errUsernameNotString = errors.New("the username returned by the OIDC provider isn't a regular string") + errGroupsClaimNotFound = errors.New("groups claim from the OIDC configuration not found on the token returned by the OIDC provider") + errNotAuthenticated = errors.New("authentication didn't succeed") +) + +func newOIDCAuthenticator(cfg configauth.Authentication) (*oidcAuthenticator, error) { + if cfg.OIDC.Audience == "" { + return nil, errNoClientIDProvided + } + if cfg.OIDC.IssuerURL == "" { + return nil, errNoIssuerURL + } + if cfg.Attribute == "" { + cfg.Attribute = defaultAttribute + } + + return &oidcAuthenticator{ + attribute: cfg.Attribute, + config: *cfg.OIDC, + unaryInterceptor: defaultUnaryInterceptor, + streamInterceptor: defaultStreamInterceptor, + }, nil +} + +func (o *oidcAuthenticator) Authenticate(ctx context.Context, headers map[string][]string) (context.Context, error) { + authHeaders := headers[o.attribute] + if len(authHeaders) == 0 { + return ctx, errNotAuthenticated + } + + // we only use the first header, if multiple values exist + parts := strings.Split(authHeaders[0], " ") + if len(parts) != 2 { + return ctx, errInvalidAuthenticationHeaderFormat + } + + idToken, err := o.verifier.Verify(ctx, parts[1]) + if err != nil { + return ctx, fmt.Errorf("failed to verify token: %w", err) + } + + claims := map[string]interface{}{} + if err = idToken.Claims(&claims); err != nil { + // currently, this isn't a valid condition, the Verify call a few lines above + // will already attempt to parse the payload as a json and set it as the claims + // for the token. As we are using a map to hold the claims, there's no way to fail + // to read the claims. It could fail if we were using a custom struct. Instead of + // swalling the error, it's better to make this future-proof, in case the underlying + // code changes + return ctx, errFailedToObtainClaimsFromToken + } + + sub, err := getSubjectFromClaims(claims, o.config.UsernameClaim, idToken.Subject) + if err != nil { + return ctx, fmt.Errorf("failed to get subject from claims in the token: %w", err) + } + ctx = context.WithValue(ctx, subjectKey, sub) + + gr, err := getGroupsFromClaims(claims, o.config.GroupsClaim) + if err != nil { + return ctx, fmt.Errorf("failed to get groups from claims in the token: %w", err) + } + ctx = context.WithValue(ctx, groupsKey, gr) + + return ctx, nil +} + +func (o *oidcAuthenticator) Start(context.Context) error { + provider, err := getProviderForConfig(o.config) + if err != nil { + return fmt.Errorf("failed to get configuration from the auth server: %w", err) + } + o.provider = provider + + o.verifier = o.provider.Verifier(&oidc.Config{ + ClientID: o.config.Audience, + }) + + return nil +} + +func (o *oidcAuthenticator) Close() error { + // no-op at the moment + // once we implement caching of the tokens we might need this + return nil +} + +func (o *oidcAuthenticator) UnaryInterceptor(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) { + return o.unaryInterceptor(ctx, req, info, handler, o.Authenticate) +} + +func (o *oidcAuthenticator) StreamInterceptor(srv interface{}, str grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler) error { + return o.streamInterceptor(srv, str, info, handler, o.Authenticate) +} + +func getSubjectFromClaims(claims map[string]interface{}, usernameClaim string, fallback string) (string, error) { + if len(usernameClaim) > 0 { + username, found := claims[usernameClaim] + if !found { + return "", errClaimNotFound + } + + sUsername, ok := username.(string) + if !ok { + return "", errUsernameNotString + } + + return sUsername, nil + } + + return fallback, nil +} + +func getGroupsFromClaims(claims map[string]interface{}, groupsClaim string) ([]string, error) { + if len(groupsClaim) > 0 { + var groups []string + rawGroup, ok := claims[groupsClaim] + if !ok { + return nil, errGroupsClaimNotFound + } + switch v := rawGroup.(type) { + case string: + groups = append(groups, v) + case []string: + groups = v + case []interface{}: + groups = make([]string, 0, len(v)) + for i := range v { + groups = append(groups, fmt.Sprintf("%v", v[i])) + } + } + + return groups, nil + } + + return []string{}, nil +} + +func getProviderForConfig(config configauth.OIDC) (*oidc.Provider, error) { + t := &http.Transport{ + Proxy: http.ProxyFromEnvironment, + DialContext: (&net.Dialer{ + Timeout: 5 * time.Second, + KeepAlive: 10 * time.Second, + DualStack: true, + }).DialContext, + ForceAttemptHTTP2: true, + MaxIdleConns: 100, + IdleConnTimeout: 90 * time.Second, + TLSHandshakeTimeout: 5 * time.Second, + ExpectContinueTimeout: 1 * time.Second, + } + + cert, err := getIssuerCACertFromPath(config.IssuerCAPath) + if err != nil { + return nil, err // the errors from this path have enough context already + } + + if cert != nil { + t.TLSClientConfig = &tls.Config{ + RootCAs: x509.NewCertPool(), + } + t.TLSClientConfig.RootCAs.AddCert(cert) + } + + client := &http.Client{ + Timeout: 5 * time.Second, + Transport: t, + } + oidcContext := oidc.ClientContext(context.Background(), client) + return oidc.NewProvider(oidcContext, config.IssuerURL) +} + +func getIssuerCACertFromPath(path string) (*x509.Certificate, error) { + if path == "" { + return nil, nil + } + + rawCA, err := ioutil.ReadFile(path) + if err != nil { + return nil, fmt.Errorf("could not read the CA file %q: %w", path, err) + } + + if len(rawCA) == 0 { + return nil, fmt.Errorf("could not read the CA file %q: empty file", path) + } + + block, _ := pem.Decode(rawCA) + if block == nil { + return nil, fmt.Errorf("cannot decode the contents of the CA file %q: %w", path, err) + } + + return x509.ParseCertificate(block.Bytes) +} diff --git a/internal/auth/oidc_authenticator_test.go b/internal/auth/oidc_authenticator_test.go new file mode 100644 index 00000000000..5ca70822849 --- /dev/null +++ b/internal/auth/oidc_authenticator_test.go @@ -0,0 +1,550 @@ +// Copyright The OpenTelemetry Authors +// +// 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. + +package auth + +import ( + "context" + "crypto/rand" + "crypto/rsa" + "crypto/tls" + "crypto/x509" + "encoding/json" + "encoding/pem" + "errors" + "fmt" + "io/ioutil" + "math/big" + "net" + "os" + "testing" + "time" + + "github.com/stretchr/testify/assert" + "github.com/stretchr/testify/require" + "google.golang.org/grpc" + + "go.opentelemetry.io/collector/config/configauth" +) + +func TestOIDCAuthenticationSucceeded(t *testing.T) { + // prepare + oidcServer, err := newOIDCServer() + require.NoError(t, err) + oidcServer.Start() + defer oidcServer.Close() + + config := configauth.Authentication{ + OIDC: &configauth.OIDC{ + IssuerURL: oidcServer.URL, + Audience: "unit-test", + GroupsClaim: "memberships", + }, + } + p, err := newOIDCAuthenticator(config) + require.NoError(t, err) + + err = p.Start(context.Background()) + require.NoError(t, err) + + payload, _ := json.Marshal(map[string]interface{}{ + "sub": "jdoe@example.com", + "name": "jdoe", + "iss": oidcServer.URL, + "aud": "unit-test", + "exp": time.Now().Add(time.Minute).Unix(), + "memberships": []string{"department-1", "department-2"}, + }) + token, err := oidcServer.token(payload) + require.NoError(t, err) + + // test + ctx, err := p.Authenticate(context.Background(), map[string][]string{"authorization": {fmt.Sprintf("Bearer %s", token)}}) + + // verify + assert.NotNil(t, ctx) + assert.NoError(t, err) + + subject, ok := SubjectFromContext(ctx) + assert.True(t, ok) + assert.EqualValues(t, "jdoe@example.com", subject) + + groups, ok := GroupsFromContext(ctx) + assert.True(t, ok) + assert.Contains(t, groups, "department-1") + assert.Contains(t, groups, "department-2") +} + +func TestOIDCProviderForConfigWithTLS(t *testing.T) { + // prepare the CA cert for the TLS handler + cert := x509.Certificate{ + NotBefore: time.Now(), + NotAfter: time.Now().Add(10 * time.Second), + IPAddresses: []net.IP{net.IPv4(127, 0, 0, 1)}, + SerialNumber: big.NewInt(9447457), // some number + } + priv, err := rsa.GenerateKey(rand.Reader, 2048) + require.NoError(t, err) + + x509Cert, err := x509.CreateCertificate(rand.Reader, &cert, &cert, &priv.PublicKey, priv) + require.NoError(t, err) + + caFile, err := ioutil.TempFile(os.TempDir(), "cert") + require.NoError(t, err) + defer os.Remove(caFile.Name()) + + err = pem.Encode(caFile, &pem.Block{ + Type: "CERTIFICATE", + Bytes: x509Cert, + }) + require.NoError(t, err) + + oidcServer, err := newOIDCServer() + require.NoError(t, err) + defer oidcServer.Close() + + tlsCert := tls.Certificate{ + Certificate: [][]byte{x509Cert}, + PrivateKey: priv, + } + oidcServer.TLS = &tls.Config{Certificates: []tls.Certificate{tlsCert}} + oidcServer.StartTLS() + + // prepare the processor configuration + config := configauth.OIDC{ + IssuerURL: oidcServer.URL, + IssuerCAPath: caFile.Name(), + Audience: "unit-test", + } + + // test + provider, err := getProviderForConfig(config) + + // verify + assert.NoError(t, err) + assert.NotNil(t, provider) +} + +func TestOIDCLoadIssuerCAFromPath(t *testing.T) { + // prepare + cert := x509.Certificate{ + SerialNumber: big.NewInt(9447457), // some number + IsCA: true, + } + priv, err := rsa.GenerateKey(rand.Reader, 2048) + require.NoError(t, err) + + x509Cert, err := x509.CreateCertificate(rand.Reader, &cert, &cert, &priv.PublicKey, priv) + require.NoError(t, err) + + file, err := ioutil.TempFile(os.TempDir(), "cert") + require.NoError(t, err) + defer os.Remove(file.Name()) + + err = pem.Encode(file, &pem.Block{ + Type: "CERTIFICATE", + Bytes: x509Cert, + }) + require.NoError(t, err) + + // test + loaded, err := getIssuerCACertFromPath(file.Name()) + + // verify + assert.NoError(t, err) + assert.Equal(t, cert.SerialNumber, loaded.SerialNumber) +} + +func TestOIDCFailedToLoadIssuerCAFromPathEmptyCert(t *testing.T) { + // prepare + file, err := ioutil.TempFile(os.TempDir(), "cert") + require.NoError(t, err) + defer os.Remove(file.Name()) + + // test + loaded, err := getIssuerCACertFromPath(file.Name()) // the file exists, but the contents isn't a cert + + // verify + assert.Error(t, err) + assert.Nil(t, loaded) +} + +func TestOIDCFailedToLoadIssuerCAFromPathMissingFile(t *testing.T) { + // test + loaded, err := getIssuerCACertFromPath("some-non-existing-file") + + // verify + assert.Error(t, err) + assert.Nil(t, loaded) +} + +func TestOIDCFailedToLoadIssuerCAFromPathInvalidContent(t *testing.T) { + // prepare + file, err := ioutil.TempFile(os.TempDir(), "cert") + require.NoError(t, err) + defer os.Remove(file.Name()) + file.Write([]byte("foobar")) + + config := configauth.OIDC{ + IssuerCAPath: file.Name(), + } + + // test + provider, err := getProviderForConfig(config) // cross test with getIssuerCACertFromPath + + // verify + assert.Error(t, err) + assert.Nil(t, provider) +} + +func TestOIDCInvalidAuthHeader(t *testing.T) { + // prepare + p, err := newOIDCAuthenticator(configauth.Authentication{ + OIDC: &configauth.OIDC{ + Audience: "some-audience", + IssuerURL: "http://example.com", + }, + }) + require.NoError(t, err) + + // test + ctx, err := p.Authenticate(context.Background(), map[string][]string{"authorization": {"some-value"}}) + + // verify + assert.NotNil(t, ctx) + assert.Equal(t, errInvalidAuthenticationHeaderFormat, err) +} + +func TestOIDCNotAuthenticated(t *testing.T) { + // prepare + p, err := newOIDCAuthenticator(configauth.Authentication{ + OIDC: &configauth.OIDC{ + Audience: "some-audience", + IssuerURL: "http://example.com", + }, + }) + require.NoError(t, err) + + // test + ctx, err := p.Authenticate(context.Background(), make(map[string][]string)) + + // verify + assert.NotNil(t, ctx) + assert.Equal(t, errNotAuthenticated, err) +} + +func TestProviderNotReacheable(t *testing.T) { + // prepare + p, err := newOIDCAuthenticator(configauth.Authentication{ + OIDC: &configauth.OIDC{ + Audience: "some-audience", + IssuerURL: "http://example.com", + }, + }) + require.NoError(t, err) + + // test + err = p.Start(context.Background()) + + // verify + assert.Error(t, err) +} + +func TestFailedToVerifyToken(t *testing.T) { + // prepare + oidcServer, err := newOIDCServer() + require.NoError(t, err) + oidcServer.Start() + defer oidcServer.Close() + + p, err := newOIDCAuthenticator(configauth.Authentication{ + OIDC: &configauth.OIDC{ + IssuerURL: oidcServer.URL, + Audience: "unit-test", + }, + }) + require.NoError(t, err) + + err = p.Start(context.Background()) + require.NoError(t, err) + + // test + ctx, err := p.Authenticate(context.Background(), map[string][]string{"authorization": {"Bearer some-token"}}) + + // verify + assert.NotNil(t, ctx) + assert.Error(t, err) +} + +func TestFailedToGetGroupsClaimFromToken(t *testing.T) { + // prepare + oidcServer, err := newOIDCServer() + require.NoError(t, err) + oidcServer.Start() + defer oidcServer.Close() + + for _, tt := range []struct { + casename string + config configauth.Authentication + expectedError error + }{ + { + "groupsClaimNonExisting", + configauth.Authentication{ + OIDC: &configauth.OIDC{ + IssuerURL: oidcServer.URL, + Audience: "unit-test", + GroupsClaim: "non-existing-claim", + }, + }, + errGroupsClaimNotFound, + }, + { + "usernameClaimNonExisting", + configauth.Authentication{ + OIDC: &configauth.OIDC{ + IssuerURL: oidcServer.URL, + Audience: "unit-test", + UsernameClaim: "non-existing-claim", + }, + }, + errClaimNotFound, + }, + { + "usernameNotString", + configauth.Authentication{ + OIDC: &configauth.OIDC{ + IssuerURL: oidcServer.URL, + Audience: "unit-test", + UsernameClaim: "some-non-string-field", + }, + }, + errUsernameNotString, + }, + } { + t.Run(tt.casename, func(t *testing.T) { + p, err := newOIDCAuthenticator(tt.config) + require.NoError(t, err) + + err = p.Start(context.Background()) + require.NoError(t, err) + + payload, _ := json.Marshal(map[string]interface{}{ + "iss": oidcServer.URL, + "some-non-string-field": 123, + "aud": "unit-test", + "exp": time.Now().Add(time.Minute).Unix(), + }) + token, err := oidcServer.token(payload) + require.NoError(t, err) + + // test + ctx, err := p.Authenticate(context.Background(), map[string][]string{"authorization": {fmt.Sprintf("Bearer %s", token)}}) + + // verify + assert.NotNil(t, ctx) + assert.True(t, errors.Is(err, tt.expectedError)) + }) + } +} + +func TestSubjectFromClaims(t *testing.T) { + // prepare + claims := map[string]interface{}{ + "username": "jdoe", + } + + // test + username, err := getSubjectFromClaims(claims, "username", "") + + // verify + assert.NoError(t, err) + assert.Equal(t, "jdoe", username) +} + +func TestSubjectFallback(t *testing.T) { + // prepare + claims := map[string]interface{}{ + "sub": "jdoe", + } + + // test + username, err := getSubjectFromClaims(claims, "", "jdoe") + + // verify + assert.NoError(t, err) + assert.Equal(t, "jdoe", username) +} + +func TestGroupsFromClaim(t *testing.T) { + // prepare + for _, tt := range []struct { + casename string + input interface{} + expected []string + }{ + { + "single-string", + "department-1", + []string{"department-1"}, + }, + { + "multiple-strings", + []string{"department-1", "department-2"}, + []string{"department-1", "department-2"}, + }, + { + "multiple-things", + []interface{}{"department-1", 123}, + []string{"department-1", "123"}, + }, + } { + t.Run(tt.casename, func(t *testing.T) { + claims := map[string]interface{}{ + "sub": "jdoe", + "memberships": tt.input, + } + + // test + groups, err := getGroupsFromClaims(claims, "memberships") + assert.NoError(t, err) + assert.Equal(t, tt.expected, groups) + }) + } +} + +func TestEmptyGroupsClaim(t *testing.T) { + // prepare + claims := map[string]interface{}{ + "sub": "jdoe", + } + + // test + groups, err := getGroupsFromClaims(claims, "") + assert.NoError(t, err) + assert.Equal(t, []string{}, groups) +} + +func TestMissingClient(t *testing.T) { + // prepare + config := configauth.Authentication{ + OIDC: &configauth.OIDC{ + IssuerURL: "http://example.com/", + }, + } + + // test + p, err := newOIDCAuthenticator(config) + + // verify + assert.Nil(t, p) + assert.Equal(t, errNoClientIDProvided, err) +} + +func TestMissingIssuerURL(t *testing.T) { + // prepare + config := configauth.Authentication{ + OIDC: &configauth.OIDC{ + Audience: "some-audience", + }, + } + + // test + p, err := newOIDCAuthenticator(config) + + // verify + assert.Nil(t, p) + assert.Equal(t, errNoIssuerURL, err) +} + +func TestClose(t *testing.T) { + // prepare + config := configauth.Authentication{ + OIDC: &configauth.OIDC{ + Audience: "some-audience", + IssuerURL: "http://example.com/", + }, + } + p, err := newOIDCAuthenticator(config) + require.NoError(t, err) + require.NotNil(t, p) + + // test + err = p.Close() // for now, we never fail + + // verify + assert.NoError(t, err) +} + +func TestUnaryInterceptor(t *testing.T) { + // prepare + config := configauth.Authentication{ + OIDC: &configauth.OIDC{ + Audience: "some-audience", + IssuerURL: "http://example.com/", + }, + } + p, err := newOIDCAuthenticator(config) + require.NoError(t, err) + require.NotNil(t, p) + + interceptorCalled := false + p.unaryInterceptor = func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler, authenticate authenticateFunc) (interface{}, error) { + interceptorCalled = true + return nil, nil + } + handler := func(ctx context.Context, req interface{}) (interface{}, error) { + return nil, nil + } + + // test + res, err := p.UnaryInterceptor(context.Background(), nil, &grpc.UnaryServerInfo{}, handler) + + // verify + assert.NoError(t, err) + assert.Nil(t, res) + assert.True(t, interceptorCalled) +} + +func TestStreamInterceptor(t *testing.T) { + // prepare + config := configauth.Authentication{ + OIDC: &configauth.OIDC{ + Audience: "some-audience", + IssuerURL: "http://example.com/", + }, + } + p, err := newOIDCAuthenticator(config) + require.NoError(t, err) + require.NotNil(t, p) + + interceptorCalled := false + p.streamInterceptor = func(srv interface{}, stream grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler, authenticate authenticateFunc) error { + interceptorCalled = true + return nil + } + handler := func(srv interface{}, stream grpc.ServerStream) error { + return nil + } + streamServer := &mockServerStream{ + ctx: context.Background(), + } + + // test + err = p.StreamInterceptor(nil, streamServer, &grpc.StreamServerInfo{}, handler) + + // verify + assert.NoError(t, err) + assert.True(t, interceptorCalled) +} diff --git a/internal/auth/oidc_server_test.go b/internal/auth/oidc_server_test.go new file mode 100644 index 00000000000..a9a533e12c1 --- /dev/null +++ b/internal/auth/oidc_server_test.go @@ -0,0 +1,135 @@ +// Copyright The OpenTelemetry Authors +// +// 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. + +package auth + +import ( + "bytes" + "crypto" + "crypto/rand" + "crypto/rsa" + "crypto/sha1" + "crypto/sha256" + "crypto/x509" + "crypto/x509/pkix" + "encoding/base64" + "encoding/binary" + "encoding/json" + "fmt" + "math/big" + "net/http" + "net/http/httptest" + "time" +) + +// oidcServer is an overly simplified OIDC mock server, good enough to sign the tokens required by the test +// and pass the verification done by the underlying libraries +type oidcServer struct { + *httptest.Server + x509Cert []byte + privateKey *rsa.PrivateKey +} + +func newOIDCServer() (*oidcServer, error) { + jwks := map[string]interface{}{} + + mux := http.NewServeMux() + server := httptest.NewUnstartedServer(mux) + + mux.HandleFunc("/.well-known/openid-configuration", func(w http.ResponseWriter, req *http.Request) { + w.Header().Set("Content-Type", "application/json; charset=utf-8") + json.NewEncoder(w).Encode(map[string]interface{}{ + "issuer": server.URL, + "jwks_uri": fmt.Sprintf("%s/.well-known/jwks.json", server.URL), + }) + }) + mux.HandleFunc("/.well-known/jwks.json", func(w http.ResponseWriter, req *http.Request) { + w.Header().Set("Content-Type", "application/json; charset=utf-8") + json.NewEncoder(w).Encode(jwks) + }) + + privateKey, err := createPrivateKey() + if err != nil { + return nil, err + } + + x509Cert, err := createCertificate(privateKey) + if err != nil { + return nil, err + } + + eBytes := make([]byte, 8) + binary.BigEndian.PutUint64(eBytes, uint64(privateKey.E)) + eBytes = bytes.TrimLeft(eBytes, "\x00") + + sum := sha1.Sum(x509Cert) + jwks["keys"] = []map[string]interface{}{{ + "alg": "RS256", + "kty": "RSA", + "use": "sig", + "x5c": []string{base64.StdEncoding.EncodeToString(x509Cert)}, + "n": base64.RawURLEncoding.EncodeToString(privateKey.N.Bytes()), + "e": base64.RawURLEncoding.EncodeToString(eBytes), + "kid": base64.RawURLEncoding.EncodeToString(sum[:]), + "x5t": base64.RawURLEncoding.EncodeToString(sum[:]), + }} + + return &oidcServer{server, x509Cert, privateKey}, nil +} + +func (s *oidcServer) token(jsonPayload []byte) (string, error) { + jsonHeader, _ := json.Marshal(map[string]interface{}{ + "alg": "RS256", + "typ": "JWT", + }) + + header := base64.RawURLEncoding.EncodeToString(jsonHeader) + payload := base64.RawURLEncoding.EncodeToString(jsonPayload) + digest := sha256.Sum256([]byte(fmt.Sprintf("%s.%s", header, payload))) + + signature, err := rsa.SignPKCS1v15(rand.Reader, s.privateKey, crypto.SHA256, digest[:]) + if err != nil { + return "", err + } + + encodedSignature := base64.RawURLEncoding.EncodeToString(signature) + token := fmt.Sprintf("%s.%s.%s", header, payload, encodedSignature) + return token, nil +} + +func createCertificate(privateKey *rsa.PrivateKey) ([]byte, error) { + cert := x509.Certificate{ + SerialNumber: big.NewInt(1), + Subject: pkix.Name{ + Organization: []string{"Ecorp, Inc"}, + }, + NotBefore: time.Now(), + NotAfter: time.Now().Add(5 * time.Minute), + } + + x509Cert, err := x509.CreateCertificate(rand.Reader, &cert, &cert, &privateKey.PublicKey, privateKey) + if err != nil { + return nil, err + } + + return x509Cert, nil +} + +func createPrivateKey() (*rsa.PrivateKey, error) { + priv, err := rsa.GenerateKey(rand.Reader, 2048) + if err != nil { + return nil, err + } + return priv, nil +}