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', $_SERVER)) {
23 print "This script must be run from the command line\n";
27 define('INSTALLDIR', realpath(dirname(__FILE__) . '/..'));
28 define('LACONICA', true);
30 require_once(INSTALLDIR . '/lib/common.php');
31 require_once(INSTALLDIR . '/lib/jabber.php');
32 require_once(INSTALLDIR . '/lib/daemon.php');
34 set_error_handler('common_error_handler');
36 # This is kind of clunky; we create a class to call the global functions
37 # in jabber.php, which create a new XMPP class. A more elegant (?) solution
38 # might be to use make this a subclass of XMPP.
40 class XMPPDaemon extends Daemon {
42 function XMPPDaemon($resource=NULL) {
43 static $attrs = array('server', 'port', 'user', 'password', 'host');
45 foreach ($attrs as $attr)
47 $this->$attr = common_config('xmpp', $attr);
51 $this->resource = $resource;
53 $this->resource = common_config('xmpp', 'resource') . 'daemon';
56 $this->log(LOG_INFO, "INITIALIZE XMPPDaemon {$this->user}@{$this->server}/{$this->resource}");
61 $connect_to = ($this->host) ? $this->host : $this->server;
63 $this->log(LOG_INFO, "Connecting to $connect_to on port $this->port");
65 $this->conn = jabber_connect($this->resource);
71 $this->conn->setReconnectTimeout(600);
73 jabber_send_presence("Send me a message to post a notice", 'available',
74 NULL, 'available', 100);
75 return !$this->conn->isDisconnected();
79 return strtolower('xmppdaemon.'.$this->resource);
83 if ($this->connect()) {
85 $this->conn->addEventHandler('message', 'handle_message', $this);
86 $this->conn->addEventHandler('presence', 'handle_presence', $this);
87 $this->conn->addEventHandler('reconnect', 'handle_reconnect', $this);
89 $this->conn->process();
93 function handle_reconnect(&$pl) {
94 $this->conn->processUntil('session_start');
95 $this->conn->presence('Send me a message to post a notice', 'available', NULL, 'available', 100);
98 function get_user($from) {
99 $user = User::staticGet('jabber', jabber_normalize_jid($from));
103 function handle_message(&$pl) {
104 if ($pl['type'] != 'chat') {
107 if (mb_strlen($pl['body']) == 0) {
111 $from = jabber_normalize_jid($pl['from']);
113 # Forwarded from another daemon (probably a broadcaster) for
116 if ($this->is_self($from)) {
117 $from = $this->get_ofrom($pl);
118 if (is_null($from) || $this->is_self($from)) {
123 $user = $this->get_user($from);
126 $this->from_site($from, 'Unknown user; go to ' .
127 common_local_url('imsettings') .
128 ' to add your address to your account');
129 $this->log(LOG_WARNING, 'Message from unknown user ' . $from);
132 if ($this->handle_command($user, $pl['body'])) {
134 } else if ($this->is_autoreply($pl['body'])) {
135 $this->log(LOG_INFO, 'Ignoring auto reply from ' . $from);
137 } else if ($this->is_otr($pl['body'])) {
138 $this->log(LOG_INFO, 'Ignoring OTR from ' . $from);
140 } else if ($this->is_direct($pl['body'])) {
141 preg_match_all('/d[\ ]*([a-z0-9]{1,64})/', $pl['body'], $to);
143 $to = preg_replace('/^d([\ ])*/', '', $to[0][0]);
144 $body = preg_replace('/d[\ ]*('. $to .')[\ ]*/', '', $pl['body']);
145 $this->add_direct($user, $body, $to, $from);
147 $len = mb_strlen($pl['body']);
149 $this->from_site($from, 'Message too long - maximum is 140 characters, you sent ' . $len);
152 $this->add_notice($user, $pl);
159 function is_self($from) {
160 return preg_match('/^'.strtolower(jabber_daemon_address()).'/', strtolower($from));
163 function get_ofrom($pl) {
165 $addresses = $xml->sub('addresses');
167 $this->log(LOG_WARNING, 'Forwarded message without addresses');
170 $address = $addresses->sub('address');
172 $this->log(LOG_WARNING, 'Forwarded message without address');
175 if (!array_key_exists('type', $address->attrs)) {
176 $this->log(LOG_WARNING, 'No type for forwarded message');
179 $type = $address->attrs['type'];
180 if ($type != 'ofrom') {
181 $this->log(LOG_WARNING, 'Type of forwarded message is not ofrom');
184 if (!array_key_exists('jid', $address->attrs)) {
185 $this->log(LOG_WARNING, 'No jid for forwarded message');
188 $jid = $address->attrs['jid'];
190 $this->log(LOG_WARNING, 'Could not get jid from address');
193 $this->log(LOG_DEBUG, 'Got message forwarded from jid ' . $jid);
197 function is_autoreply($txt) {
198 if (preg_match('/[\[\(]?[Aa]uto[-\s]?[Rr]e(ply|sponse)[\]\)]/', $txt)) {
205 function is_otr($txt) {
206 if (preg_match('/^\?OTR/', $txt)) {
213 function is_direct($txt) {
214 if (strtolower(substr($txt, 0, 2))=='d ') {
221 function from_site($address, $msg) {
222 $text = '['.common_config('site', 'name') . '] ' . $msg;
223 jabber_send_message($address, $text);
226 function handle_command($user, $body) {
227 $inter = new CommandInterpreter();
228 $cmd = $inter->handle_command($user, $body);
230 $chan = new XMPPChannel($this->conn);
231 $cmd->execute($chan);
238 function add_notice(&$user, &$pl) {
239 $body = trim($pl['body']);
240 $content_shortened = common_shorten_link($body);
241 if (mb_strlen($content_shortened) > 140) {
242 $content = trim(mb_substr($body, 0, 140));
243 $content_shortened = common_shorten_link($content);
248 $notice = Notice::saveNew($user->id, $content, 'xmpp');
249 if (is_string($notice)) {
250 $this->log(LOG_ERR, $notice);
253 common_broadcast_notice($notice);
255 'Added notice ' . $notice->id . ' from user ' . $user->nickname);
260 function handle_presence(&$pl) {
261 $from = jabber_normalize_jid($pl['from']);
262 switch ($pl['type']) {
264 # We let anyone subscribe
265 $this->subscribed($from);
267 'Accepted subscription from ' . $from);
273 'Ignoring "' . $pl['type'] . '" from ' . $from);
277 $user = User::staticGet('jabber', $from);
279 $this->log(LOG_WARNING, 'Presence from unknown user ' . $from);
282 if ($user->updatefrompresence) {
283 $this->log(LOG_INFO, 'Updating ' . $user->nickname .
284 ' status from presence.');
285 $this->add_notice($user, $pl);
294 function log($level, $msg) {
295 common_log($level, 'XMPPDaemon('.$this->resource.'): '.$msg);
298 function subscribed($to) {
299 jabber_special_presence('subscribed', $to);
303 ini_set("max_execution_time", "0");
304 ini_set("max_input_time", "0");
306 mb_internal_encoding('UTF-8');
308 $resource = ($argc > 1) ? $argv[1] : (common_config('xmpp','resource') . '-listen');
310 $daemon = new XMPPDaemon($resource);