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path: root/app/models/integrations/datadog.rb
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# frozen_string_literal: true

module Integrations
  class Datadog < Integration
    DEFAULT_SITE = 'datadoghq.com'
    URL_TEMPLATE = 'https://webhooks-http-intake.logs.%{datadog_site}/v1/input/'
    URL_TEMPLATE_API_KEYS = 'https://app.%{datadog_site}/account/settings#api'
    URL_API_KEYS_DOCS = "https://docs.#{DEFAULT_SITE}/account_management/api-app-keys/"

    SUPPORTED_EVENTS = %w[
      pipeline job
    ].freeze

    prop_accessor :datadog_site, :api_url, :api_key, :datadog_service, :datadog_env

    with_options if: :activated? do
      validates :api_key, presence: true, format: { with: /\A\w+\z/ }
      validates :datadog_site, format: { with: /\A[\w\.]+\z/, allow_blank: true }
      validates :api_url, public_url: { allow_blank: true }
      validates :datadog_site, presence: true, unless: -> (obj) { obj.api_url.present? }
      validates :api_url, presence: true, unless: -> (obj) { obj.datadog_site.present? }
    end

    after_save :compose_service_hook, if: :activated?

    def initialize_properties
      super

      self.datadog_site ||= DEFAULT_SITE
    end

    def self.supported_events
      SUPPORTED_EVENTS
    end

    def self.default_test_event
      'pipeline'
    end

    def configurable_events
      [] # do not allow to opt out of required hooks
    end

    def title
      'Datadog'
    end

    def description
      'Trace your GitLab pipelines with Datadog'
    end

    def help
      nil
    end

    def self.to_param
      'datadog'
    end

    def fields
      [
        {
          type: 'text',
          name: 'datadog_site',
          placeholder: DEFAULT_SITE,
          help: 'Choose the Datadog site to send data to. Set to "datadoghq.eu" to send data to the EU site',
          required: false
        },
        {
          type: 'text',
          name: 'api_url',
          title: 'API URL',
          help: '(Advanced) Define the full URL for your Datadog site directly',
          required: false
        },
        {
          type: 'password',
          name: 'api_key',
          title: _('API key'),
          non_empty_password_title: s_('ProjectService|Enter new API key'),
          non_empty_password_help: s_('ProjectService|Leave blank to use your current API key'),
          help: "<a href=\"#{api_keys_url}\" target=\"_blank\">API key</a> used for authentication with Datadog",
          required: true
        },
        {
          type: 'text',
          name: 'datadog_service',
          title: 'Service',
          placeholder: 'gitlab-ci',
          help: 'Name of this GitLab instance that all data will be tagged with'
        },
        {
          type: 'text',
          name: 'datadog_env',
          title: 'Env',
          help: 'The environment tag that traces will be tagged with'
        }
      ]
    end

    def compose_service_hook
      hook = service_hook || build_service_hook
      hook.url = hook_url
      hook.save
    end

    def hook_url
      url = api_url.presence || sprintf(URL_TEMPLATE, datadog_site: datadog_site)
      url = URI.parse(url)
      url.path = File.join(url.path || '/', api_key)
      query = { service: datadog_service.presence, env: datadog_env.presence }.compact
      url.query = query.to_query unless query.empty?
      url.to_s
    end

    def api_keys_url
      return URL_API_KEYS_DOCS unless datadog_site.presence

      sprintf(URL_TEMPLATE_API_KEYS, datadog_site: datadog_site)
    end

    def execute(data)
      return if project.disabled_services.include?(to_param)

      object_kind = data[:object_kind]
      object_kind = 'job' if object_kind == 'build'
      return unless supported_events.include?(object_kind)

      service_hook.execute(data, "#{object_kind} hook")
    end

    def test(data)
      begin
        result = execute(data)
        return { success: false, result: result[:message] } if result[:http_status] != 200
      rescue StandardError => error
        return { success: false, result: error }
      end

      { success: true, result: result[:message] }
    end
  end
end