mail_handler.php

#!/usr/bin/env php
<?php

if ($argc > 1) {
  $_SERVER['PHABRICATOR_ENV'] = $argv[1];
}

$root = dirname(dirname(dirname(__FILE__)));
require_once $root.'/scripts/__init_script__.php';
require_once $root.'/externals/mimemailparser/MimeMailParser.class.php';

$parser = new MimeMailParser();
$parser->setText(file_get_contents('php://stdin'));

$text_body = $parser->getMessageBody('text');

$text_body_headers = $parser->getMessageBodyHeaders('text');
$content_type = idx($text_body_headers, 'content-type');
if (
  !phutil_is_utf8($text_body) &&
  (preg_match('/charset="(.*?)"/', $content_type, $matches) ||
   preg_match('/charset=(\S+)/', $content_type, $matches))
) {
  $text_body = phutil_utf8_convert($text_body, "UTF-8", $matches[1]);
}

$headers = $parser->getHeaders();
$headers['subject'] = iconv_mime_decode($headers['subject'], 0, "UTF-8");
$headers['from'] = iconv_mime_decode($headers['from'], 0, "UTF-8");

$received = new PhabricatorMetaMTAReceivedMail();
$received->setHeaders($headers);
$received->setBodies(array(
  'text' => $text_body,
  'html' => $parser->getMessageBody('html'),
));
$received->setMessageIDHash(
  PhabricatorHash::digestForIndex($received->getMessageID())
);

$attachments = array();
foreach ($parser->getAttachments() as $attachment) {
  if (preg_match('@text/(plain|html)@', $attachment->getContentType()) &&
      $attachment->getContentDisposition() == 'inline') {
    // If this is an "inline" attachment with some sort of text content-type,
    // do not treat it as a file for attachment. MimeMailParser already picked
    // it up in the getMessageBody() call above. We still want to treat 'inline'
    // attachments with other content types (e.g., images) as attachments.
    continue;
  }

  $file = PhabricatorFile::newFromFileData(
    $attachment->getContent(),
    array(
      'name' => $attachment->getFilename(),
    ));
  $attachments[] = $file->getPHID();
}

try {
  $received->setAttachments($attachments);
  $received->save();
  $received->processReceivedMail();
} catch (Exception $e) {
  $received
    ->setMessage('EXCEPTION: '.$e->getMessage())
    ->save();
}