4 * Laconica - a distributed open-source microblogging tool
5 * Copyright (C) 2008, Controlez-Vous, Inc.
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU Affero General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU Affero General Public License for more details.
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
21 # Abort if called from a web server
22 if (isset($_SERVER) && array_key_exists('REQUEST_METHOD', $_SERVER)) {
23 print "This script must be run from the command line\n";
27 define('INSTALLDIR', realpath(dirname(__FILE__) . '/..'));
28 define('LACONICA', true);
30 require_once(INSTALLDIR . '/lib/common.php');
31 require_once(INSTALLDIR . '/lib/jabber.php');
32 require_once(INSTALLDIR . '/lib/daemon.php');
34 set_error_handler('common_error_handler');
36 # This is kind of clunky; we create a class to call the global functions
37 # in jabber.php, which create a new XMPP class. A more elegant (?) solution
38 # might be to use make this a subclass of XMPP.
40 class XMPPDaemon extends Daemon
43 function XMPPDaemon($resource=null)
45 static $attrs = array('server', 'port', 'user', 'password', 'host');
47 foreach ($attrs as $attr)
49 $this->$attr = common_config('xmpp', $attr);
53 $this->resource = $resource;
55 $this->resource = common_config('xmpp', 'resource') . 'daemon';
58 $this->log(LOG_INFO, "INITIALIZE XMPPDaemon {$this->user}@{$this->server}/{$this->resource}");
64 $connect_to = ($this->host) ? $this->host : $this->server;
66 $this->log(LOG_INFO, "Connecting to $connect_to on port $this->port");
68 $this->conn = jabber_connect($this->resource);
74 $this->conn->setReconnectTimeout(600);
76 jabber_send_presence("Send me a message to post a notice", 'available',
77 null, 'available', 100);
78 return !$this->conn->isDisconnected();
83 return strtolower('xmppdaemon.'.$this->resource);
88 if ($this->connect()) {
90 $this->conn->addEventHandler('message', 'handle_message', $this);
91 $this->conn->addEventHandler('presence', 'handle_presence', $this);
92 $this->conn->addEventHandler('reconnect', 'handle_reconnect', $this);
94 $this->conn->process();
98 function handle_reconnect(&$pl)
100 $this->conn->processUntil('session_start');
101 $this->conn->presence('Send me a message to post a notice', 'available', null, 'available', 100);
104 function get_user($from)
106 $user = User::staticGet('jabber', jabber_normalize_jid($from));
110 function handle_message(&$pl)
112 if ($pl['type'] != 'chat') {
115 if (mb_strlen($pl['body']) == 0) {
119 $from = jabber_normalize_jid($pl['from']);
121 # Forwarded from another daemon (probably a broadcaster) for
124 if ($this->is_self($from)) {
125 $from = $this->get_ofrom($pl);
126 if (is_null($from) || $this->is_self($from)) {
131 $user = $this->get_user($from);
134 $this->from_site($from, 'Unknown user; go to ' .
135 common_local_url('imsettings') .
136 ' to add your address to your account');
137 $this->log(LOG_WARNING, 'Message from unknown user ' . $from);
140 if ($this->handle_command($user, $pl['body'])) {
142 } else if ($this->is_autoreply($pl['body'])) {
143 $this->log(LOG_INFO, 'Ignoring auto reply from ' . $from);
145 } else if ($this->is_otr($pl['body'])) {
146 $this->log(LOG_INFO, 'Ignoring OTR from ' . $from);
148 } else if ($this->is_direct($pl['body'])) {
149 preg_match_all('/d[\ ]*([a-z0-9]{1,64})/', $pl['body'], $to);
151 $to = preg_replace('/^d([\ ])*/', '', $to[0][0]);
152 $body = preg_replace('/d[\ ]*('. $to .')[\ ]*/', '', $pl['body']);
153 $this->add_direct($user, $body, $to, $from);
155 $this->add_notice($user, $pl);
162 function is_self($from)
164 return preg_match('/^'.strtolower(jabber_daemon_address()).'/', strtolower($from));
167 function get_ofrom($pl)
170 $addresses = $xml->sub('addresses');
172 $this->log(LOG_WARNING, 'Forwarded message without addresses');
175 $address = $addresses->sub('address');
177 $this->log(LOG_WARNING, 'Forwarded message without address');
180 if (!array_key_exists('type', $address->attrs)) {
181 $this->log(LOG_WARNING, 'No type for forwarded message');
184 $type = $address->attrs['type'];
185 if ($type != 'ofrom') {
186 $this->log(LOG_WARNING, 'Type of forwarded message is not ofrom');
189 if (!array_key_exists('jid', $address->attrs)) {
190 $this->log(LOG_WARNING, 'No jid for forwarded message');
193 $jid = $address->attrs['jid'];
195 $this->log(LOG_WARNING, 'Could not get jid from address');
198 $this->log(LOG_DEBUG, 'Got message forwarded from jid ' . $jid);
202 function is_autoreply($txt)
204 if (preg_match('/[\[\(]?[Aa]uto[-\s]?[Rr]e(ply|sponse)[\]\)]/', $txt)) {
206 } else if (preg_match('/^System: Message wasn\'t delivered. Offline storage size was exceeded.$/', $txt)) {
213 function is_otr($txt)
215 if (preg_match('/^\?OTR/', $txt)) {
222 function is_direct($txt)
224 if (strtolower(substr($txt, 0, 2))=='d ') {
231 function from_site($address, $msg)
233 $text = '['.common_config('site', 'name') . '] ' . $msg;
234 jabber_send_message($address, $text);
237 function handle_command($user, $body)
239 $inter = new CommandInterpreter();
240 $cmd = $inter->handle_command($user, $body);
242 $chan = new XMPPChannel($this->conn);
243 $cmd->execute($chan);
250 function add_notice(&$user, &$pl)
252 $body = trim($pl['body']);
253 $content_shortened = common_shorten_links($body);
254 if (mb_strlen($content_shortened) > 140) {
255 $from = jabber_normalize_jid($pl['from']);
256 $this->from_site($from, "Message too long - maximum is 140 characters, you sent ".mb_strlen($content_shortened));
259 $notice = Notice::saveNew($user->id, $content_shortened, 'xmpp');
260 if (is_string($notice)) {
261 $this->log(LOG_ERR, $notice);
264 common_broadcast_notice($notice);
266 'Added notice ' . $notice->id . ' from user ' . $user->nickname);
271 function handle_presence(&$pl)
273 $from = jabber_normalize_jid($pl['from']);
274 switch ($pl['type']) {
276 # We let anyone subscribe
277 $this->subscribed($from);
279 'Accepted subscription from ' . $from);
285 'Ignoring "' . $pl['type'] . '" from ' . $from);
289 $user = User::staticGet('jabber', $from);
291 $this->log(LOG_WARNING, 'Presence from unknown user ' . $from);
294 if ($user->updatefrompresence) {
295 $this->log(LOG_INFO, 'Updating ' . $user->nickname .
296 ' status from presence.');
297 $this->add_notice($user, $pl);
306 function log($level, $msg)
308 common_log($level, 'XMPPDaemon('.$this->resource.'): '.$msg);
311 function subscribed($to)
313 jabber_special_presence('subscribed', $to);
317 // Abort immediately if xmpp is not enabled, otherwise the daemon chews up
318 // lots of CPU trying to connect to unconfigured servers
319 if (common_config('xmpp','enabled')==false) {
320 print "Aborting daemon - xmpp is disabled\n";
324 ini_set("max_execution_time", "0");
325 ini_set("max_input_time", "0");
327 mb_internal_encoding('UTF-8');
329 $resource = ($argc > 1) ? $argv[1] : (common_config('xmpp','resource') . '-listen');
331 $daemon = new XMPPDaemon($resource);