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authorCraig Andrews <candrews@integralblue.com>2010-01-08 18:52:09 -0500
committerCraig Andrews <candrews@integralblue.com>2010-01-08 18:52:43 -0500
commit055f3fdddb998bfee1a6f6e61d1ca6df4b2fb740 (patch)
tree41698275bb5ef8f76e77e5a9b6a504c35ac6fe4b /lib/mailhandler.php
parente22af049a8df3e120ea88387d013dedec8554c43 (diff)
Add an IMAP daemon so StatusNet can process incoming user posts via catch-all mailbox (in addition to the pre-existing script alias method)
Diffstat (limited to 'lib/mailhandler.php')
-rw-r--r--lib/mailhandler.php275
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);
+ }
+}