3 * StatusNet - the distributed open-source microblogging tool
4 * Copyright (C) 2009, StatusNet, Inc.
6 * Send and receive notices using the XMPP network
10 * This program is free software: you can redistribute it and/or modify
11 * it under the terms of the GNU Affero General Public License as published by
12 * the Free Software Foundation, either version 3 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU Affero General Public License for more details.
20 * You should have received a copy of the GNU Affero General Public License
21 * along with this program. If not, see <http://www.gnu.org/licenses/>.
25 * @author Evan Prodromou <evan@status.net>
26 * @copyright 2009 StatusNet, Inc.
27 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
28 * @link http://status.net/
31 if (!defined('STATUSNET')) {
32 // This check helps protect against security problems;
33 // your code file can't be executed directly from the web.
37 set_include_path(get_include_path() . PATH_SEPARATOR . INSTALLDIR . '/extlib/XMPPHP');
44 * @author Evan Prodromou <evan@status.net>
45 * @copyright 2009 StatusNet, Inc.
46 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
47 * @link http://status.net/
50 class XmppPlugin extends ImPlugin
52 public $server = null;
54 public $user = 'update';
55 public $resource = null;
56 public $encryption = true;
57 public $password = null;
58 public $host = null; // only set if != server
59 public $debug = false; // print extra debug info
61 public $transport = 'xmpp';
63 function getDisplayName(){
64 return _m('XMPP/Jabber/GTalk');
68 * Splits a Jabber ID (JID) into node, domain, and resource portions.
70 * Based on validation routine submitted by:
71 * @copyright 2009 Patrick Georgi <patrick@georgi-clan.de>
72 * @license Licensed under ISC-L, which is compatible with everything else that keeps the copyright notice intact.
74 * @param string $jid string to check
76 * @return array with "node", "domain", and "resource" indices
77 * @throws Exception if input is not valid
80 protected function splitJid($jid)
83 /* the following definitions come from stringprep, Appendix C,
84 which is used in its entirety by nodeprop, Chapter 5, "Prohibited Output" */
85 /* C1.1 ASCII space characters */
87 /* C1.2 Non-ASCII space characters */
88 $chars .= "\x{a0}\x{1680}\x{2000}-\x{200b}\x{202f}\x{205f}\x{3000a}";
89 /* C2.1 ASCII control characters */
90 $chars .= "\x{00}-\x{1f}\x{7f}";
91 /* C2.2 Non-ASCII control characters */
92 $chars .= "\x{80}-\x{9f}\x{6dd}\x{70f}\x{180e}\x{200c}\x{200d}\x{2028}\x{2029}\x{2060}-\x{2063}\x{206a}-\x{206f}\x{feff}\x{fff9}-\x{fffc}\x{1d173}-\x{1d17a}";
93 /* C3 - Private Use */
94 $chars .= "\x{e000}-\x{f8ff}\x{f0000}-\x{ffffd}\x{100000}-\x{10fffd}";
95 /* C4 - Non-character code points */
96 $chars .= "\x{fdd0}-\x{fdef}\x{fffe}\x{ffff}\x{1fffe}\x{1ffff}\x{2fffe}\x{2ffff}\x{3fffe}\x{3ffff}\x{4fffe}\x{4ffff}\x{5fffe}\x{5ffff}\x{6fffe}\x{6ffff}\x{7fffe}\x{7ffff}\x{8fffe}\x{8ffff}\x{9fffe}\x{9ffff}\x{afffe}\x{affff}\x{bfffe}\x{bffff}\x{cfffe}\x{cffff}\x{dfffe}\x{dffff}\x{efffe}\x{effff}\x{ffffe}\x{fffff}\x{10fffe}\x{10ffff}";
97 /* C5 - Surrogate codes */
98 $chars .= "\x{d800}-\x{dfff}";
99 /* C6 - Inappropriate for plain text */
100 $chars .= "\x{fff9}-\x{fffd}";
101 /* C7 - Inappropriate for canonical representation */
102 $chars .= "\x{2ff0}-\x{2ffb}";
103 /* C8 - Change display properties or are deprecated */
104 $chars .= "\x{340}\x{341}\x{200e}\x{200f}\x{202a}-\x{202e}\x{206a}-\x{206f}";
105 /* C9 - Tagging characters */
106 $chars .= "\x{e0001}\x{e0020}-\x{e007f}";
108 /* Nodeprep forbids some more characters */
109 $nodeprepchars = $chars;
110 $nodeprepchars .= "\x{22}\x{26}\x{27}\x{2f}\x{3a}\x{3c}\x{3e}\x{40}";
112 $parts = explode("/", $jid, 2);
113 if (count($parts) > 1) {
114 $resource = $parts[1];
115 if ($resource == '') {
116 // Warning: empty resource isn't legit.
117 // But if we're normalizing, we may as well take it...
123 $node = explode("@", $parts[0]);
124 if ((count($node) > 2) || (count($node) == 0)) {
125 throw new Exception("Invalid JID: too many @s");
126 } else if (count($node) == 1) {
133 throw new Exception("Invalid JID: @ but no node");
137 // Length limits per http://xmpp.org/rfcs/rfc3920.html#addressing
138 if ($node !== null) {
139 if (strlen($node) > 1023) {
140 throw new Exception("Invalid JID: node too long.");
142 if (preg_match("/[".$nodeprepchars."]/u", $node)) {
143 throw new Exception("Invalid JID node '$node'");
147 if (strlen($domain) > 1023) {
148 throw new Exception("Invalid JID: domain too long.");
150 if (!common_valid_domain($domain)) {
151 throw new Exception("Invalid JID domain name '$domain'");
154 if ($resource !== null) {
155 if (strlen($resource) > 1023) {
156 throw new Exception("Invalid JID: resource too long.");
158 if (preg_match("/[".$chars."]/u", $resource)) {
159 throw new Exception("Invalid JID resource '$resource'");
163 return array('node' => is_null($node) ? null : mb_strtolower($node),
164 'domain' => is_null($domain) ? null : mb_strtolower($domain),
165 'resource' => $resource);
169 * Checks whether a string is a syntactically valid Jabber ID (JID),
170 * either with or without a resource.
172 * Note that a bare domain can be a valid JID.
174 * @param string $jid string to check
175 * @param bool $check_domain whether we should validate that domain...
177 * @return boolean whether the string is a valid JID
179 protected function validateFullJid($jid, $check_domain=false)
182 $parts = $this->splitJid($jid);
184 if (!$this->checkDomain($parts['domain'])) {
188 return $parts['resource'] !== ''; // missing or present; empty ain't kosher
189 } catch (Exception $e) {
195 * Checks whether a string is a syntactically valid base Jabber ID (JID).
196 * A base JID won't include a resource specifier on the end; since we
197 * take it off when reading input we can't really use them reliably
198 * to direct outgoing messages yet (sorry guys!)
200 * Note that a bare domain can be a valid JID.
202 * @param string $jid string to check
203 * @param bool $check_domain whether we should validate that domain...
205 * @return boolean whether the string is a valid JID
207 protected function validateBaseJid($jid, $check_domain=false)
210 $parts = $this->splitJid($jid);
212 if (!$this->checkDomain($parts['domain'])) {
216 return ($parts['resource'] === null); // missing; empty ain't kosher
217 } catch (Exception $e) {
223 * Normalizes a Jabber ID for comparison, dropping the resource component if any.
225 * @param string $jid JID to check
226 * @param bool $check_domain if true, reject if the domain isn't findable
228 * @return string an equivalent JID in normalized (lowercase) form
231 function normalize($jid)
234 $parts = $this->splitJid($jid);
235 if ($parts['node'] !== null) {
236 return $parts['node'] . '@' . $parts['domain'];
238 return $parts['domain'];
240 } catch (Exception $e) {
246 * Check if this domain's got some legit DNS record
248 protected function checkDomain($domain)
250 if (checkdnsrr("_xmpp-server._tcp." . $domain, "SRV")) {
253 if (checkdnsrr($domain, "ANY")) {
259 function daemon_screenname()
261 $ret = $this->user . '@' . $this->server;
264 return $ret . '/' . $this->resource;
270 function validate($screenname)
272 return $this->validateBaseJid($screenname, common_config('email', 'check_domain'));
276 * Load related modules when needed
278 * @param string $cls Name of the class to be loaded
280 * @return boolean hook value; true means continue processing, false means stop.
283 function onAutoload($cls)
285 $dir = dirname(__FILE__);
290 require_once 'XMPP.php';
294 require_once $dir . '/'.$cls.'.php';
297 require_once $dir . '/'.strtolower($cls).'.php';
304 function onStartImDaemonIoManagers(&$classes)
306 parent::onStartImDaemonIoManagers(&$classes);
307 $classes[] = new XmppManager($this); // handles pings/reconnects
311 function microiduri($screenname)
313 return 'xmpp:' . $screenname;
316 function send_message($screenname, $body)
318 $this->queuedConnection()->message($screenname, $body, 'chat');
321 function send_notice($screenname, $notice)
323 $msg = $this->format_notice($notice);
324 $entry = $this->format_entry($notice);
326 $this->queuedConnection()->message($screenname, $msg, 'chat', null, $entry);
331 * extra information for XMPP messages, as defined by Twitter
333 * @param Profile $profile Profile of the sending user
334 * @param Notice $notice Notice being sent
336 * @return string Extra information (Atom, HTML, addresses) in string format
339 function format_entry($notice)
341 $profile = $notice->getProfile();
343 $entry = $notice->asAtomEntry(true, true);
345 $xs = new XMLStringer();
346 $xs->elementStart('html', array('xmlns' => 'http://jabber.org/protocol/xhtml-im'));
347 $xs->elementStart('body', array('xmlns' => 'http://www.w3.org/1999/xhtml'));
348 $xs->element('a', array('href' => $profile->profileurl),
351 if (!empty($notice->rendered)) {
352 $xs->raw($notice->rendered);
354 $xs->raw(common_render_content($notice->content, $notice));
357 $xs->element('a', array(
358 'href'=>common_local_url('conversation',
359 array('id' => $notice->conversation)).'#notice-'.$notice->id
360 ),sprintf(_('[%s]'),$notice->id));
361 $xs->elementEnd('body');
362 $xs->elementEnd('html');
364 $html = $xs->getString();
366 return $html . ' ' . $entry;
369 function receive_raw_message($pl)
371 $from = $this->normalize($pl['from']);
373 if ($pl['type'] != 'chat') {
374 common_log(LOG_WARNING, "Ignoring message of type ".$pl['type']." from $from.");
378 if (mb_strlen($pl['body']) == 0) {
379 common_log(LOG_WARNING, "Ignoring message with empty body from $from.");
383 $this->handle_incoming($from, $pl['body']);
389 * Build a queue-proxied XMPP interface object. Any outgoing messages
390 * will be run back through us for enqueing rather than sent directly.
392 * @return Queued_XMPP
393 * @throws Exception if server settings are invalid.
395 function queuedConnection(){
396 if(!isset($this->server)){
397 throw new Exception("must specify a server");
399 if(!isset($this->port)){
400 throw new Exception("must specify a port");
402 if(!isset($this->user)){
403 throw new Exception("must specify a user");
405 if(!isset($this->password)){
406 throw new Exception("must specify a password");
409 return new Queued_XMPP($this, $this->host ?
420 XMPPHP_Log::LEVEL_VERBOSE : null
424 function onPluginVersion(&$versions)
426 $versions[] = array('name' => 'XMPP',
427 'version' => STATUSNET_VERSION,
428 'author' => 'Craig Andrews, Evan Prodromou',
429 'homepage' => 'http://status.net/wiki/Plugin:XMPP',
431 _m('The XMPP plugin allows users to send and receive notices over the XMPP/Jabber network.'));