78 lines
2.1 KiB
Ruby
78 lines
2.1 KiB
Ruby
# frozen_string_literal: true
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module IncidentManagement
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module PagerDuty
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class ProcessWebhookService
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include Gitlab::Utils::StrongMemoize
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include IncidentManagement::Settings
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# https://developer.pagerduty.com/docs/webhooks/webhook-behavior/#size-limit
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PAGER_DUTY_PAYLOAD_SIZE_LIMIT = 55.kilobytes
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# https://developer.pagerduty.com/docs/webhooks/v2-overview/#webhook-types
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PAGER_DUTY_PROCESSABLE_EVENT_TYPES = %w(incident.trigger).freeze
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def initialize(project, payload)
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@project = project
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@payload = payload
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end
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def execute(token)
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return forbidden unless webhook_setting_active?
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return unauthorized unless valid_token?(token)
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return bad_request unless valid_payload_size?
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process_incidents
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accepted
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end
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private
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attr_reader :project, :payload
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def process_incidents
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pager_duty_processable_events.each do |event|
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::IncidentManagement::PagerDuty::ProcessIncidentWorker.perform_async(project.id, event['incident'])
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end
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end
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def pager_duty_processable_events
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strong_memoize(:pager_duty_processable_events) do
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::PagerDuty::WebhookPayloadParser
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.call(payload.to_h)
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.filter { |msg| msg['event'].to_s.in?(PAGER_DUTY_PROCESSABLE_EVENT_TYPES) }
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end
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end
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def webhook_setting_active?
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incident_management_setting.pagerduty_active?
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end
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def valid_token?(token)
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token && incident_management_setting.pagerduty_token == token
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end
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def valid_payload_size?
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Gitlab::Utils::DeepSize.new(payload, max_size: PAGER_DUTY_PAYLOAD_SIZE_LIMIT).valid?
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end
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def accepted
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ServiceResponse.success(http_status: :accepted)
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end
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def forbidden
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ServiceResponse.error(message: 'Forbidden', http_status: :forbidden)
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end
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def unauthorized
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ServiceResponse.error(message: 'Unauthorized', http_status: :unauthorized)
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end
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def bad_request
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ServiceResponse.error(message: 'Bad Request', http_status: :bad_request)
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end
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end
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end
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end
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