diff options
Diffstat (limited to 'lib/mailhandler.php')
| -rw-r--r-- | lib/mailhandler.php | 275 |
1 files changed, 275 insertions, 0 deletions
diff --git a/lib/mailhandler.php b/lib/mailhandler.php new file mode 100644 index 000000000..32a8cd9bc --- /dev/null +++ b/lib/mailhandler.php @@ -0,0 +1,275 @@ +<?php +/* + * StatusNet - the distributed open-source microblogging tool + * Copyright (C) 2008, 2009, StatusNet, Inc. + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +require_once(INSTALLDIR . '/lib/mail.php'); +require_once(INSTALLDIR . '/lib/mediafile.php'); +require_once('Mail/mimeDecode.php'); + +# FIXME: we use both Mail_mimeDecode and mailparse +# Need to move everything to mailparse + +class MailHandler +{ + function __construct() + { + } + + function handle_message($rawmessage) + { + list($from, $to, $msg, $attachments) = $this->parse_message($rawmessage); + if (!$from || !$to || !$msg) { + $this->error(null, _('Could not parse message.')); + } + common_log(LOG_INFO, "Mail from $from to $to with ".count($attachments) .' attachment(s): ' .substr($msg, 0, 20)); + $user = $this->user_from_header($from); + if (!$user) { + $this->error($from, _('Not a registered user.')); + return false; + } + if (!$this->user_match_to($user, $to)) { + $this->error($from, _('Sorry, that is not your incoming email address.')); + return false; + } + if (!$user->emailpost) { + $this->error($from, _('Sorry, no incoming email allowed.')); + return false; + } + $response = $this->handle_command($user, $from, $msg); + if ($response) { + return true; + } + $msg = $this->cleanup_msg($msg); + $msg = common_shorten_links($msg); + if (Notice::contentTooLong($msg)) { + $this->error($from, sprintf(_('That\'s too long. '. + 'Max notice size is %d chars.'), + Notice::maxContent())); + } + + $mediafiles = array(); + + foreach($attachments as $attachment){ + + $mf = null; + + try { + $mf = MediaFile::fromFileHandle($attachment, $user); + } catch(ClientException $ce) { + $this->error($from, $ce->getMessage()); + } + + $msg .= ' ' . $mf->shortUrl(); + + array_push($mediafiles, $mf); + fclose($attachment); + } + + $err = $this->add_notice($user, $msg, $mediafiles); + + if (is_string($err)) { + $this->error($from, $err); + return false; + } else { + return true; + } + } + + function error($from, $msg) + { + file_put_contents("php://stderr", $msg . "\n"); + exit(1); + } + + function user_from_header($from_hdr) + { + $froms = mailparse_rfc822_parse_addresses($from_hdr); + if (!$froms) { + return null; + } + $from = $froms[0]; + $addr = common_canonical_email($from['address']); + $user = User::staticGet('email', $addr); + if (!$user) { + $user = User::staticGet('smsemail', $addr); + } + return $user; + } + + function user_match_to($user, $to_hdr) + { + $incoming = $user->incomingemail; + $tos = mailparse_rfc822_parse_addresses($to_hdr); + foreach ($tos as $to) { + if (strcasecmp($incoming, $to['address']) == 0) { + return true; + } + } + return false; + } + + function handle_command($user, $from, $msg) + { + $inter = new CommandInterpreter(); + $cmd = $inter->handle_command($user, $msg); + if ($cmd) { + $cmd->execute(new MailChannel($from)); + return true; + } + return false; + } + + function respond($from, $to, $response) + { + + $headers['From'] = $to; + $headers['To'] = $from; + $headers['Subject'] = "Command complete"; + + return mail_send(array($from), $headers, $response); + } + + function log($level, $msg) + { + common_log($level, 'MailDaemon: '.$msg); + } + + function add_notice($user, $msg, $mediafiles) + { + try { + $notice = Notice::saveNew($user->id, $msg, 'mail'); + } catch (Exception $e) { + $this->log(LOG_ERR, $e->getMessage()); + return $e->getMessage(); + } + foreach($mediafiles as $mf){ + $mf->attachToNotice($notice); + } + common_broadcast_notice($notice); + $this->log(LOG_INFO, + 'Added notice ' . $notice->id . ' from user ' . $user->nickname); + return true; + } + + function parse_message($contents) + { + $parsed = Mail_mimeDecode::decode(array('input' => $contents, + 'include_bodies' => true, + 'decode_headers' => true, + 'decode_bodies' => true)); + if (!$parsed) { + return null; + } + + $from = $parsed->headers['from']; + + $to = $parsed->headers['to']; + + $type = $parsed->ctype_primary . '/' . $parsed->ctype_secondary; + + $attachments = array(); + + $this->extract_part($parsed,$msg,$attachments); + + return array($from, $to, $msg, $attachments); + } + + function extract_part($parsed,&$msg,&$attachments){ + if ($parsed->ctype_primary == 'multipart') { + if($parsed->ctype_secondary == 'alternative'){ + $altmsg = $this->extract_msg_from_multipart_alternative_part($parsed); + if(!empty($altmsg)) $msg = $altmsg; + }else{ + foreach($parsed->parts as $part){ + $this->extract_part($part,$msg,$attachments); + } + } + } else if ($parsed->ctype_primary == 'text' + && $parsed->ctype_secondary=='plain') { + $msg = $parsed->body; + if(strtolower($parsed->ctype_parameters['charset']) != "utf-8"){ + $msg = utf8_encode($msg); + } + }else if(!empty($parsed->body)){ + if(common_config('attachments', 'uploads')){ + //only save attachments if uploads are enabled + $attachment = tmpfile(); + fwrite($attachment, $parsed->body); + $attachments[] = $attachment; + } + } + } + + function extract_msg_from_multipart_alternative_part($parsed){ + foreach ($parsed->parts as $part) { + $this->extract_part($part,$msg,$attachments); + } + //we don't want any attachments that are a result of this parsing + return $msg; + } + + function unsupported_type($type) + { + $this->error(null, "Unsupported message type: " . $type); + } + + function cleanup_msg($msg) + { + $lines = explode("\n", $msg); + + $output = ''; + + foreach ($lines as $line) { + // skip quotes + if (preg_match('/^\s*>.*$/', $line)) { + continue; + } + // skip start of quote + if (preg_match('/^\s*On.*wrote:\s*$/', $line)) { + continue; + } + // probably interesting to someone, not us + if (preg_match('/^\s*Sent via/', $line)) { + continue; + } + if (preg_match('/^\s*Sent from my/', $line)) { + continue; + } + + // skip everything after a sig + if (preg_match('/^\s*--+\s*$/', $line) || + preg_match('/^\s*__+\s*$/', $line)) + { + break; + } + // skip everything after Outlook quote + if (preg_match('/^\s*-+\s*Original Message\s*-+\s*$/', $line)) { + break; + } + // skip everything after weird forward + if (preg_match('/^\s*Begin\s+forward/', $line)) { + break; + } + + $output .= ' ' . $line; + } + + preg_replace('/\s+/', ' ', $output); + return trim($output); + } +} |