Summary:
Ref T4371. Ref T4699. Fixes T3994.
Currently, we're very conservative about sending errors back to users. A concern I had about this was that mistakes could lead to email loops, massive amounts of email spam, etc. Because of this, I was pretty hesitant about replying to email with more email when I wrote this stuff.
However, this was a long time ago. We now have Message-ID deduplication, "X-Phabricator-Sent-This-Mail", generally better mail infrastructure, and rate limiting. Together, these mechanisms should reasonably prevent anything crazy (primarily, infinite email loops) from happening.
Thus:
- When we hit any processing error after receiving a mail, try to send the author a reply with details about what went wrong. These are limited to 6 per hour per address.
- Rewrite most of the errors to be more detailed and informative.
- Rewrite most of the errors in a user-facing voice ("You sent this mail..." instead of "This mail was sent..").
- Remove the redundant, less sophisticated code which does something similar in Differential.
Test Plan:
- Using `scripts/mail/mail_receiver.php`, artificially received a pile of mail.
- Hit a bunch of different errors.
- Saw reasonable error mail get sent to me.
- Saw other reasonable error mail get rate limited.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T3994, T4371, T4699
Differential Revision: https://secure.phabricator.com/D8692
Summary:
Mailbox sometimes (?) changes the case of the email address (?). Be more liberal in what we accept.
Also fix a minor output bug.
Test Plan: Sent mail to `e1+...` instead of `E1+...`, verified it arrived.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D7575
Summary:
Moves all remaining mail handling into ReplyHandlers.
Farewell, `getPhabricatorToInformation()`! You were a bad method and no one liked you.
Ref T1205.
Test Plan:
- Used test console to send mail to Revisions, Tasks, Conpherences and Commits (these all actually work).
- Used test console to send mail to Requests, Macros, Questions and Mocks (these accept the mail but don't do anything with it, but didn't do anything before either).
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T1205
Differential Revision: https://secure.phabricator.com/D5953
Summary: Currently this is fairly hard-coded. Instead, make it use available receivers. Ref T1205.
Test Plan: Used mail form to send mail to various objects (Dnn, Tnn, Cnn, etc.). Only some of these work right now because the receiver thing still hard-codes a bunch of junk.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T1205
Differential Revision: https://secure.phabricator.com/D5944
Summary:
Ref T1205. Finally able to delete a big chunk of this nastiness.
Make MailReceivers responsible for validating senders. For object creation receivers (bugs, conpherences) this just means that users must not be disabled. For other receivers the senders must be able to see the objects, have the right hashes, etc., according to policy.
Test Plan: Added a bunch of test cases (everything except policy). Verified behavior via the Receive test console.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T1205
Differential Revision: https://secure.phabricator.com/D5943
Summary:
Ref T1205. Continuation of D5915.
Currently, `PhabricatorMetaMTAReceivedMail` has //all// the logic for routing mail. In particular:
- New mail receivers in applications must edit it.
- Mail receivers don't drop out when applications are uninstalled.
Applications have some logic in subclasses of `PhabricatorMailReplyHandler`, but this class is a bit of a mess. It is also heavily based on the assumption that mail receivers are objects (like revisions), but this is not true in at least two cases today (creating new tasks with `bugs@`, creating a new Conpherence thread) and likely other cases in the future (e.g., revision-by-mail).
Move this logic into a new `PhabricatorMailReceiver` classtree. This is similar to `PhabricatorMailReplyHandler` but a bit cleaner and more general. I plan to heavily reduce the responsibilities of `PhabricatorMailReplyHandler` or possibly eliminate it entirely.
For now, the new classtree doesn't do much of interest. The only behavioral change this diff causes is that Phabricator will now reject mail to an application when that application is uninstalled.
I also moved all the `ReplyHandler` classes into `mail/` directories in their respective applications.
Test Plan: Unit tests, used receive test to route mail to various objects.
Reviewers: btrahan
Reviewed By: btrahan
CC: Afaque_Hussain, edward, aran
Maniphest Tasks: T1205
Differential Revision: https://secure.phabricator.com/D5922
