387 lines
12 KiB
PHP
Executable File
387 lines
12 KiB
PHP
Executable File
#!/usr/bin/env php
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<?php
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/*
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* Laconica - a distributed open-source microblogging tool
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* Copyright (C) 2008, 2009, Control Yourself, Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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define('INSTALLDIR', realpath(dirname(__FILE__) . '/..'));
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$helptext = <<<END_OF_HELP
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Script for converting mail messages into notices. Takes message body
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as STDIN.
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END_OF_HELP;
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require_once INSTALLDIR.'/scripts/commandline.inc';
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require_once(INSTALLDIR . '/lib/mail.php');
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require_once('Mail/mimeDecode.php');
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# FIXME: we use both Mail_mimeDecode and mailparse
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# Need to move everything to mailparse
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class MailerDaemon
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{
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function __construct()
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{
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}
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function handle_message($fname='php://stdin')
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{
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list($from, $to, $msg, $attachments) = $this->parse_message($fname);
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if (!$from || !$to || !$msg) {
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$this->error(null, _('Could not parse message.'));
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}
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common_log(LOG_INFO, "Mail from $from to $to with ".count($attachments) .' attachment(s): ' .substr($msg, 0, 20));
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$user = $this->user_from($from);
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if (!$user) {
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$this->error($from, _('Not a registered user.'));
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return false;
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}
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if (!$this->user_match_to($user, $to)) {
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$this->error($from, _('Sorry, that is not your incoming email address.'));
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return false;
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}
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if (!$user->emailpost) {
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$this->error($from, _('Sorry, no incoming email allowed.'));
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return false;
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}
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$response = $this->handle_command($user, $from, $msg);
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if ($response) {
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return true;
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}
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$msg = $this->cleanup_msg($msg);
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$msg = common_shorten_links($msg);
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if (mb_strlen($msg) > 140) {
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$this->error($from,_('That\'s too long. '.
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'Max notice size is 140 chars.'));
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}
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$fileRecords = array();
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foreach($attachments as $attachment){
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$mimetype = $this->getUploadedFileType($attachment);
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$stream = stream_get_meta_data($attachment);
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if (!$this->isRespectsQuota($user,filesize($stream['uri']))) {
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die('error() should trigger an exception before reaching here.');
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}
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$filename = $this->saveFile($user, $attachment,$mimetype);
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fclose($attachment);
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if (empty($filename)) {
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$this->error($from,_('Couldn\'t save file.'));
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}
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$fileRecord = $this->storeFile($filename, $mimetype);
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$fileRecords[] = $fileRecord;
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$fileurl = common_local_url('attachment',
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array('attachment' => $fileRecord->id));
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// not sure this is necessary -- Zach
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$this->maybeAddRedir($fileRecord->id, $fileurl);
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$short_fileurl = common_shorten_url($fileurl);
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$msg .= ' ' . $short_fileurl;
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if (mb_strlen($msg) > 140) {
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$this->deleteFile($filename);
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$this->error($from,_('Max notice size is 140 chars, including attachment URL.'));
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}
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// Also, not sure this is necessary -- Zach
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$this->maybeAddRedir($fileRecord->id, $short_fileurl);
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}
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$err = $this->add_notice($user, $msg, $fileRecords);
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if (is_string($err)) {
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$this->error($from, $err);
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return false;
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} else {
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return true;
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}
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}
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function saveFile($user, $attachment, $mimetype) {
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$filename = File::filename($user->getProfile(), "email", $mimetype);
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$filepath = File::path($filename);
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$stream = stream_get_meta_data($attachment);
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if (copy($stream['uri'], $filepath) && chmod($filepath,0664)) {
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return $filename;
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} else {
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$this->error(null,_('File could not be moved to destination directory.' . $stream['uri'] . ' ' . $filepath));
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}
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}
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function storeFile($filename, $mimetype) {
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$file = new File;
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$file->filename = $filename;
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$file->url = File::url($filename);
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$filepath = File::path($filename);
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$file->size = filesize($filepath);
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$file->date = time();
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$file->mimetype = $mimetype;
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$file_id = $file->insert();
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if (!$file_id) {
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common_log_db_error($file, "INSERT", __FILE__);
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$this->error(null,_('There was a database error while saving your file. Please try again.'));
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}
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return $file;
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}
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function maybeAddRedir($file_id, $url)
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{
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$file_redir = File_redirection::staticGet('url', $url);
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if (empty($file_redir)) {
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$file_redir = new File_redirection;
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$file_redir->url = $url;
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$file_redir->file_id = $file_id;
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$result = $file_redir->insert();
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if (!$result) {
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common_log_db_error($file_redir, "INSERT", __FILE__);
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$this->error(null,_('There was a database error while saving your file. Please try again.'));
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}
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}
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}
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function getUploadedFileType($fileHandle) {
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require_once 'MIME/Type.php';
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$cmd = &PEAR::getStaticProperty('MIME_Type', 'fileCmd');
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$cmd = common_config('attachments', 'filecommand');
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$stream = stream_get_meta_data($fileHandle);
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$filetype = MIME_Type::autoDetect($stream['uri']);
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if (in_array($filetype, common_config('attachments', 'supported'))) {
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return $filetype;
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}
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$media = MIME_Type::getMedia($filetype);
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if ('application' !== $media) {
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$hint = sprintf(_(' Try using another %s format.'), $media);
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} else {
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$hint = '';
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}
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$this->error(null,sprintf(
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_('%s is not a supported filetype on this server.'), $filetype) . $hint);
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}
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function isRespectsQuota($user,$fileSize) {
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$file = new File;
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$ret = $file->isRespectsQuota($user,$fileSize);
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if (true === $ret) return true;
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$this->error(null,$ret);
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}
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function error($from, $msg)
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{
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file_put_contents("php://stderr", $msg . "\n");
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exit(1);
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}
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function user_from($from_hdr)
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{
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$froms = mailparse_rfc822_parse_addresses($from_hdr);
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if (!$froms) {
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return null;
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}
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$from = $froms[0];
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$addr = common_canonical_email($from['address']);
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$user = User::staticGet('email', $addr);
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if (!$user) {
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$user = User::staticGet('smsemail', $addr);
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}
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return $user;
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}
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function user_match_to($user, $to_hdr)
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{
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$incoming = $user->incomingemail;
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$tos = mailparse_rfc822_parse_addresses($to_hdr);
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foreach ($tos as $to) {
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if (strcasecmp($incoming, $to['address']) == 0) {
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return true;
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}
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}
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return false;
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}
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function handle_command($user, $from, $msg)
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{
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$inter = new CommandInterpreter();
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$cmd = $inter->handle_command($user, $msg);
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if ($cmd) {
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$cmd->execute(new MailChannel($from));
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return true;
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}
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return false;
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}
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function respond($from, $to, $response)
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{
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$headers['From'] = $to;
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$headers['To'] = $from;
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$headers['Subject'] = "Command complete";
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return mail_send(array($from), $headers, $response);
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}
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function log($level, $msg)
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{
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common_log($level, 'MailDaemon: '.$msg);
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}
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function add_notice($user, $msg, $fileRecords)
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{
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$notice = Notice::saveNew($user->id, $msg, 'mail');
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if (is_string($notice)) {
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$this->log(LOG_ERR, $notice);
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return $notice;
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}
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foreach($fileRecords as $fileRecord){
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$this->attachFile($notice, $fileRecord);
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}
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common_broadcast_notice($notice);
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$this->log(LOG_INFO,
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'Added notice ' . $notice->id . ' from user ' . $user->nickname);
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return true;
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}
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function attachFile($notice, $filerec)
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{
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File_to_post::processNew($filerec->id, $notice->id);
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$this->maybeAddRedir($filerec->id,
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common_local_url('file', array('notice' => $notice->id)));
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}
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function parse_message($fname)
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{
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$contents = file_get_contents($fname);
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$parsed = Mail_mimeDecode::decode(array('input' => $contents,
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'include_bodies' => true,
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'decode_headers' => true,
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'decode_bodies' => true));
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if (!$parsed) {
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return null;
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}
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$from = $parsed->headers['from'];
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$to = $parsed->headers['to'];
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$type = $parsed->ctype_primary . '/' . $parsed->ctype_secondary;
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$attachments = array();
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$this->extract_part($parsed,$msg,$attachments);
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return array($from, $to, utf8_encode($msg), $attachments);
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}
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function extract_part($parsed,&$msg,&$attachments){
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if ($parsed->ctype_primary == 'multipart') {
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if($parsed->ctype_secondary == 'alternative'){
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$altmsg = $this->extract_msg_from_multipart_alternative_part($parsed);
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if(!empty($altmsg)) $msg = $altmsg;
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}else{
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foreach($parsed->parts as $part){
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$this->extract_part($part,$msg,$attachments);
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}
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}
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} else if ($parsed->ctype_primary == 'text'
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&& $parsed->ctype_secondary=='plain') {
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$msg = $parsed->body;
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}else if(!empty($parsed->body)){
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if(common_config('attachments', 'uploads')){
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//only save attachments if uploads are enabled
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$attachment = tmpfile();
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fwrite($attachment, $parsed->body);
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$attachments[] = $attachment;
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}
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}
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}
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function extract_msg_from_multipart_alternative_part($parsed){
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foreach ($parsed->parts as $part) {
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$this->extract_part($part,$msg,$attachments);
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}
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//we don't want any attachments that are a result of this parsing
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return $msg;
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}
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function unsupported_type($type)
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{
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$this->error(null, "Unsupported message type: " . $type);
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}
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function cleanup_msg($msg)
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{
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$lines = explode("\n", $msg);
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$output = '';
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foreach ($lines as $line) {
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// skip quotes
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if (preg_match('/^\s*>.*$/', $line)) {
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continue;
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}
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// skip start of quote
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if (preg_match('/^\s*On.*wrote:\s*$/', $line)) {
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continue;
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}
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// probably interesting to someone, not us
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if (preg_match('/^\s*Sent via/', $line)) {
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continue;
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}
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// skip everything after a sig
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if (preg_match('/^\s*--+\s*$/', $line) ||
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preg_match('/^\s*__+\s*$/', $line))
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{
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break;
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}
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// skip everything after Outlook quote
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if (preg_match('/^\s*-+\s*Original Message\s*-+\s*$/', $line)) {
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break;
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}
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// skip everything after weird forward
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if (preg_match('/^\s*Begin\s+forward/', $line)) {
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break;
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}
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$output .= ' ' . $line;
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}
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preg_replace('/\s+/', ' ', $output);
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return trim($output);
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}
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}
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$md = new MailerDaemon();
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$md->handle_message('php://stdin');
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