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Fix inbound mail handling for messages with no HTML body part
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Authored by epriestley on Nov 22 2017, 3:45 PM.

Details

Summary

See D18776. See https://discourse.phabricator-community.org/t/cant-create-maniphest-tasks-by-email/754/2.

The change in D18776 to improve handling of non-utf8 HTML parts broke handling of mail with no HTML parts. Partly, this is because MimeMailParser has a "traditional" PHP-style API where the return type is an exciting surprise.

Test Plan
  • Sent a text-only message in Mail.app.
  • Used "Show Raw" to copy it to mail.txt, verifying that the raw message contains ONLY a text body.
  • Ran cat mail.txt | ./scripts/mail/mail_handler.php --trace --process-duplicates.
    • Before patch: error about bad idx() on a non-array.
    • After patch: clean mail processing.
  • Did the same with a message with both HTML and text bodies to make sure I didn't break anything.

Ideally we'd probably get test coverage on this, but it's been touched roughly once a year since 2013 so it'll probably hold.

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Event Timeline

epriestley created this revision.Nov 22 2017, 3:45 PM
epriestley requested review of this revision.Nov 22 2017, 3:46 PM
amckinley accepted this revision.Nov 22 2017, 6:39 PM
This revision is now accepted and ready to land.Nov 22 2017, 6:39 PM
alexmv accepted this revision.Nov 22 2017, 6:46 PM

Sorry for the breakage!

This revision was automatically updated to reflect the committed changes.