Add latest changes from gitlab-org/gitlab@master

3 files changed, 104 insertions, 0 deletions

diff --git a/lib/gitlab/mailgun/webhook_processors/base.rb b/lib/gitlab/mailgun/webhook_processors/base.rb
new file mode 100644
index 00000000000..9402637a51d
--- /dev/null
+++ b/lib/gitlab/mailgun/webhook_processors/base.rb
@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module Mailgun
+    module WebhookProcessors
+      class Base
+        def initialize(payload)
+          @payload = payload || {}
+        end
+
+        def execute
+        end
+
+        private
+
+        attr_reader :payload
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/mailgun/webhook_processors/failure_logger.rb b/lib/gitlab/mailgun/webhook_processors/failure_logger.rb
new file mode 100644
index 00000000000..a7a85bd1672
--- /dev/null
+++ b/lib/gitlab/mailgun/webhook_processors/failure_logger.rb
@@ -0,0 +1,36 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module Mailgun
+    module WebhookProcessors
+      class FailureLogger < Base
+        def execute
+          log_failure if permanent_failure? || temporary_failure_over_threshold?
+        end
+
+        def permanent_failure?
+          payload['event'] == 'failed' && payload['severity'] == 'permanent'
+        end
+
+        def temporary_failure_over_threshold?
+          payload['event'] == 'failed' && payload['severity'] == 'temporary' &&
+            Gitlab::ApplicationRateLimiter.throttled?(:temporary_email_failure, scope: payload['recipient'])
+        end
+
+        private
+
+        def log_failure
+          Gitlab::ErrorTracking::Logger.error(
+            event: 'email_delivery_failure',
+            mailgun_event_id: payload['id'],
+            recipient: payload['recipient'],
+            failure_type: payload['severity'],
+            failure_reason: payload['reason'],
+            failure_code: payload.dig('delivery-status', 'code'),
+            failure_message: payload.dig('delivery-status', 'message')
+          )
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/mailgun/webhook_processors/member_invites.rb b/lib/gitlab/mailgun/webhook_processors/member_invites.rb
new file mode 100644
index 00000000000..f54c44381f0
--- /dev/null
+++ b/lib/gitlab/mailgun/webhook_processors/member_invites.rb
@@ -0,0 +1,48 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module Mailgun
+    module WebhookProcessors
+      class MemberInvites < Base
+        ProcessWebhookServiceError = Class.new(StandardError)
+
+        def execute
+          return unless should_process?
+
+          @member = Member.find_by_invite_token(invite_token)
+          update_member_and_log if member
+        rescue ProcessWebhookServiceError => e
+          Gitlab::ErrorTracking.track_exception(e)
+        end
+
+        private
+
+        attr_reader :member
+
+        def should_process?
+          payload['event'] == 'failed' && payload['severity'] == 'permanent' &&
+            payload['tags']&.include?(::Members::Mailgun::INVITE_EMAIL_TAG)
+        end
+
+        def update_member_and_log
+          log_update_event if member.update(invite_email_success: false)
+        end
+
+        def log_update_event
+          Gitlab::AppLogger.info(
+            message: "UPDATED MEMBER INVITE_EMAIL_SUCCESS: member_id: #{member.id}",
+            event: 'updated_member_invite_email_success'
+          )
+        end
+
+        def invite_token
+          # may want to validate schema in some way using ::JSONSchemer.schema(SCHEMA_PATH).valid?(message) if this
+          # gets more complex
+          payload.dig('user-variables', ::Members::Mailgun::INVITE_EMAIL_TOKEN_KEY) ||
+            raise(ProcessWebhookServiceError, "Expected to receive #{::Members::Mailgun::INVITE_EMAIL_TOKEN_KEY} " \
+                                              "in user-variables: #{payload}")
+        end
+      end
+    end
+  end
+end