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Rewrite email parser using ImapEngine, harden processing loop

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Replace webklex/php-imap with directorytree/imapengine in the ticket
email parser. ImapEngine is pure PHP over sockets.

Parser improvements:
- Wrap per-message processing in try/catch so one malformed email
  can't abort the run; failures are flagged and logged with UID
- Query unseen + unflagged so previously-failed (flagged) messages
  are no longer re-processed on every cron run
- Skip vacation/auto-responder emails (RFC 3834) to prevent mail
  loops with the ticket auto-reply
- Cap messages per run (50) and attachment size (15MB); inline
  images over 2MB are stored as attachments instead of base64-embedded
  in ticket details
- Atomic lock file creation
- preg_quote() the ticket prefix in subject matching
- Dedupe CC watchers and exclude the sender
- Map webklex 'tls' encryption setting to STARTTLS for compatibility

NDR/DSN parsing now walks MIME parts via the underlying
zbateson parser instead of relying on attachment extraction.
This commit is contained in:
johnnyq
2026-06-12 16:56:39 -04:00
parent 300a1aff9f
commit 2204bd52f4
701 changed files with 111718 additions and 940 deletions
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39
plugins/vendor/directorytree/imapengine/src/Enums/ImapSearchKey.php vendored Normal file
View File

@@ -0,0 +1,39 @@
<?php
namespace DirectoryTree\ImapEngine\Enums;
enum ImapSearchKey: string
{
case Cc = 'CC';
case On = 'ON';
case To = 'TO';
case All = 'ALL';
case New = 'NEW';
case Old = 'OLD';
case Bcc = 'BCC';
case Uid = 'UID';
case Seen = 'SEEN';
case Body = 'BODY';
case From = 'FROM';
case Text = 'TEXT';
case Draft = 'DRAFT';
case Since = 'SINCE';
case SentOn = 'SENTON';
case SentSince = 'SENTSINCE';
case SentBefore = 'SENTBEFORE';
case Recent = 'RECENT';
case Unseen = 'UNSEEN';
case Before = 'BEFORE';
case Header = 'HEADER';
case Larger = 'LARGER';
case Deleted = 'DELETED';
case Flagged = 'FLAGGED';
case Keyword = 'KEYWORD';
case Unkeyword = 'UNKEYWORD';
case Subject = 'SUBJECT';
case Smaller = 'SMALLER';
case Answered = 'ANSWERED';
case Undeleted = 'UNDELETED';
case Unflagged = 'UNFLAGGED';
case Unanswered = 'UNANSWERED';
}