4 * Laconica - a distributed open-source microblogging tool
5 * Copyright (C) 2008, 2009, Control Yourself, 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 // Preset the server at the command line
32 $server = ($argc > 2) ? $argv[2] : null;
33 $path = ($argc > 3) ? $argv[3] : null;
35 require_once(INSTALLDIR . '/lib/common.php');
36 require_once(INSTALLDIR . '/lib/jabber.php');
37 require_once(INSTALLDIR . '/lib/daemon.php');
39 set_error_handler('common_error_handler');
41 # This is kind of clunky; we create a class to call the global functions
42 # in jabber.php, which create a new XMPP class. A more elegant (?) solution
43 # might be to use make this a subclass of XMPP.
45 class XMPPDaemon extends Daemon
47 function XMPPDaemon($resource=null)
49 static $attrs = array('server', 'port', 'user', 'password', 'host');
51 foreach ($attrs as $attr)
53 $this->$attr = common_config('xmpp', $attr);
57 $this->resource = $resource;
59 $this->resource = common_config('xmpp', 'resource') . 'daemon';
62 $this->log(LOG_INFO, "INITIALIZE XMPPDaemon {$this->user}@{$this->server}/{$this->resource}");
68 $connect_to = ($this->host) ? $this->host : $this->server;
70 $this->log(LOG_INFO, "Connecting to $connect_to on port $this->port");
72 $this->conn = jabber_connect($this->resource);
78 $this->conn->setReconnectTimeout(600);
80 jabber_send_presence("Send me a message to post a notice", 'available',
81 null, 'available', 100);
82 return !$this->conn->isDisconnected();
87 return strtolower('xmppdaemon.'.$this->resource);
92 if ($this->connect()) {
94 $this->conn->addEventHandler('message', 'handle_message', $this);
95 $this->conn->addEventHandler('presence', 'handle_presence', $this);
96 $this->conn->addEventHandler('reconnect', 'handle_reconnect', $this);
98 $this->conn->process();
102 function handle_reconnect(&$pl)
104 $this->conn->processUntil('session_start');
105 $this->conn->presence('Send me a message to post a notice', 'available', null, 'available', 100);
108 function get_user($from)
110 $user = User::staticGet('jabber', jabber_normalize_jid($from));
114 function handle_message(&$pl)
116 if ($pl['type'] != 'chat') {
119 if (mb_strlen($pl['body']) == 0) {
123 $from = jabber_normalize_jid($pl['from']);
125 # Forwarded from another daemon (probably a broadcaster) for
128 if ($this->is_self($from)) {
129 $from = $this->get_ofrom($pl);
130 if (is_null($from) || $this->is_self($from)) {
135 $user = $this->get_user($from);
138 $this->from_site($from, 'Unknown user; go to ' .
139 common_local_url('imsettings') .
140 ' to add your address to your account');
141 $this->log(LOG_WARNING, 'Message from unknown user ' . $from);
144 if ($this->handle_command($user, $pl['body'])) {
146 } else if ($this->is_autoreply($pl['body'])) {
147 $this->log(LOG_INFO, 'Ignoring auto reply from ' . $from);
149 } else if ($this->is_otr($pl['body'])) {
150 $this->log(LOG_INFO, 'Ignoring OTR from ' . $from);
152 } else if ($this->is_direct($pl['body'])) {
153 preg_match_all('/d[\ ]*([a-z0-9]{1,64})/', $pl['body'], $to);
155 $to = preg_replace('/^d([\ ])*/', '', $to[0][0]);
156 $body = preg_replace('/d[\ ]*('. $to .')[\ ]*/', '', $pl['body']);
157 $this->add_direct($user, $body, $to, $from);
159 $this->add_notice($user, $pl);
166 function is_self($from)
168 return preg_match('/^'.strtolower(jabber_daemon_address()).'/', strtolower($from));
171 function get_ofrom($pl)
174 $addresses = $xml->sub('addresses');
176 $this->log(LOG_WARNING, 'Forwarded message without addresses');
179 $address = $addresses->sub('address');
181 $this->log(LOG_WARNING, 'Forwarded message without address');
184 if (!array_key_exists('type', $address->attrs)) {
185 $this->log(LOG_WARNING, 'No type for forwarded message');
188 $type = $address->attrs['type'];
189 if ($type != 'ofrom') {
190 $this->log(LOG_WARNING, 'Type of forwarded message is not ofrom');
193 if (!array_key_exists('jid', $address->attrs)) {
194 $this->log(LOG_WARNING, 'No jid for forwarded message');
197 $jid = $address->attrs['jid'];
199 $this->log(LOG_WARNING, 'Could not get jid from address');
202 $this->log(LOG_DEBUG, 'Got message forwarded from jid ' . $jid);
206 function is_autoreply($txt)
208 if (preg_match('/[\[\(]?[Aa]uto[-\s]?[Rr]e(ply|sponse)[\]\)]/', $txt)) {
210 } else if (preg_match('/^System: Message wasn\'t delivered. Offline storage size was exceeded.$/', $txt)) {
217 function is_otr($txt)
219 if (preg_match('/^\?OTR/', $txt)) {
226 function is_direct($txt)
228 if (strtolower(substr($txt, 0, 2))=='d ') {
235 function from_site($address, $msg)
237 $text = '['.common_config('site', 'name') . '] ' . $msg;
238 jabber_send_message($address, $text);
241 function handle_command($user, $body)
243 $inter = new CommandInterpreter();
244 $cmd = $inter->handle_command($user, $body);
246 $chan = new XMPPChannel($this->conn);
247 $cmd->execute($chan);
254 function add_notice(&$user, &$pl)
256 $body = trim($pl['body']);
257 $content_shortened = common_shorten_links($body);
258 if (mb_strlen($content_shortened) > 140) {
259 $from = jabber_normalize_jid($pl['from']);
260 $this->from_site($from, "Message too long - maximum is 140 characters, you sent ".mb_strlen($content_shortened));
263 $notice = Notice::saveNew($user->id, $content_shortened, 'xmpp');
264 if (is_string($notice)) {
265 $this->log(LOG_ERR, $notice);
268 common_broadcast_notice($notice);
270 'Added notice ' . $notice->id . ' from user ' . $user->nickname);
275 function handle_presence(&$pl)
277 $from = jabber_normalize_jid($pl['from']);
278 switch ($pl['type']) {
280 # We let anyone subscribe
281 $this->subscribed($from);
283 'Accepted subscription from ' . $from);
289 'Ignoring "' . $pl['type'] . '" from ' . $from);
293 $user = User::staticGet('jabber', $from);
295 $this->log(LOG_WARNING, 'Presence from unknown user ' . $from);
298 if ($user->updatefrompresence) {
299 $this->log(LOG_INFO, 'Updating ' . $user->nickname .
300 ' status from presence.');
301 $this->add_notice($user, $pl);
310 function log($level, $msg)
312 common_log($level, 'XMPPDaemon('.$this->resource.'): '.$msg);
315 function subscribed($to)
317 jabber_special_presence('subscribed', $to);
321 // Abort immediately if xmpp is not enabled, otherwise the daemon chews up
322 // lots of CPU trying to connect to unconfigured servers
323 if (common_config('xmpp','enabled')==false) {
324 print "Aborting daemon - xmpp is disabled\n";
328 ini_set("max_execution_time", "0");
329 ini_set("max_input_time", "0");
331 mb_internal_encoding('UTF-8');
333 $resource = ($argc > 1) ? $argv[1] : (common_config('xmpp','resource') . '-listen');
335 $daemon = new XMPPDaemon($resource);