Error Handler

This library wraps invocation of Sentry and exception notification for convenience.

You still need to configure Sentry and ExceptionNotification gems separately. This gem is for invocation, not configuration.

Installation

source "https://na.artifactory.swg-devops.com/artifactory/api/gems/apset-ruby" do
  # Report errors to Sentry
  gem "safety_goggles", "~> 2.0"
end

Sample Usage

In a controller such as application_controller.rb:

rescue_from Exception, with: :render_error

def render_error(error)
  require "safety_goggles"
  code = SafetyGoggles::Handler.handle_error(error)

  render status: code, json: { code: code, message: error.to_s }
end

If you'd like to configure HTTP Basic Auth to throw exceptions and trigger the above code path, you can do this in the controller:

include ActionController::HttpAuthentication::Basic::ControllerMethods

MY_USERNAME = ENV.fetch("MY_USERNAME")
MY_PASSWORD = ENV.fetch("MY_PASSWORD")

before_action do
  success = authenticate_with_http_basic do |name, password|
    # This comparison uses & so that it doesn't short circuit and
    # uses `variable_size_secure_compare` so that length information
    # isn't leaked.
    ActiveSupport::SecurityUtils.variable_size_secure_compare(name, MY_USERNAME) &
      ActiveSupport::SecurityUtils.variable_size_secure_compare(password, MY_PASSWORD)
  end

  require "safety_goggles/unauthorized_error"
  raise SafetyGoggles::UnauthorizedError, "HTTP Basic: Access denied." unless success

  success
end

Build as a Gem

• Travis CI will build and publish a new version of the gem whenever you push a new tag:

  git tag -a 2.0.0 -m v2.0.0 && git push --tags
  

• Should the need arise, you can install a local version as follows:

  gem build *.gemspec
  gem install *.gem --ignore-dependencies