Send a rejection email when the incoming email couldn't be processed.

1 files changed, 31 insertions, 6 deletions

diff --git a/app/workers/email_receiver_worker.rb b/app/workers/email_receiver_worker.rb
index 94e346b5a51..2cfd64cefad 100644
--- a/app/workers/email_receiver_worker.rb
+++ b/app/workers/email_receiver_worker.rb
@@ -6,17 +6,42 @@ class EmailReceiverWorker
   def perform(raw)
     return unless Gitlab::ReplyByEmail.enabled?
 
-    # begin
-      Gitlab::EmailReceiver.new(raw).process
-    # rescue => e
-    #   handle_failure(raw, e)
-    # end
+    begin
+      Gitlab::EmailReceiver.new(raw).execute
+    rescue => e
+      handle_failure(raw, e)
+    end
   end
 
   private
 
   def handle_failure(raw, e)
-    # TODO: Handle better.
     Rails.logger.warn("Email can not be processed: #{e}\n\n#{raw}")
+
+    can_retry = false
+    reason = nil
+
+    case e
+    when Gitlab::EmailReceiver::SentNotificationNotFound
+      reason = "We couldn't figure out what the email is in reply to. Please create your comment through the web interface."
+    when Gitlab::EmailReceiver::EmptyEmailError
+      can_retry = true
+      reason = "It appears that the email is blank. Make sure your reply is at the top of the email, we can't process inline replies."
+    when Gitlab::EmailReceiver::AutoGeneratedEmailError
+      reason = "The email was marked as 'auto generated', which we can't accept. Please create your comment through the web interface."
+    when Gitlab::EmailReceiver::UserNotFoundError
+      reason = "We couldn't figure out what user corresponds to the email. Please create your comment through the web interface."
+    when Gitlab::EmailReceiver::UserNotAuthorizedError
+      reason = "You are not allowed to respond to the thread you are replying to. If you believe this is in error, contact a staff member."
+    when Gitlab::EmailReceiver::NoteableNotFoundError
+      reason = "The thread you are replying to no longer exists, perhaps it was deleted? If you believe this is in error, contact a staff member."
+    when Gitlab::EmailReceiver::InvalidNote
+      can_retry = true
+      reason = e.message
+    else
+      return
+    end
+
+    EmailRejectionMailer.delay.rejection(reason, raw, can_retry)
   end
 end