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.
42 * @author Evan Prodromou <evan@status.net>
43 * @copyright 2009 StatusNet, Inc.
44 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
45 * @link http://status.net/
47 class XmppPlugin extends ImPlugin
49 public $server = null;
51 public $user = 'update';
52 public $resource = 'gnusocial';
53 public $encryption = true;
54 public $password = null;
55 public $host = null; // only set if != server
56 public $debug = false; // print extra debug info
58 public $transport = 'xmpp';
60 function getDisplayName(){
61 // TRANS: Plugin display name.
62 return _m('XMPP/Jabber');
66 * Splits a Jabber ID (JID) into node, domain, and resource portions.
68 * Based on validation routine submitted by:
69 * @copyright 2009 Patrick Georgi <patrick@georgi-clan.de>
70 * @license Licensed under ISC-L, which is compatible with everything else that keeps the copyright notice intact.
72 * @param string $jid string to check
74 * @return array with "node", "domain", and "resource" indices
75 * @throws Exception if input is not valid
77 protected function splitJid($jid)
80 /* the following definitions come from stringprep, Appendix C,
81 which is used in its entirety by nodeprop, Chapter 5, "Prohibited Output" */
82 /* C1.1 ASCII space characters */
84 /* C1.2 Non-ASCII space characters */
85 $chars .= "\x{a0}\x{1680}\x{2000}-\x{200b}\x{202f}\x{205f}\x{3000a}";
86 /* C2.1 ASCII control characters */
87 $chars .= "\x{00}-\x{1f}\x{7f}";
88 /* C2.2 Non-ASCII control characters */
89 $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}";
90 /* C3 - Private Use */
91 $chars .= "\x{e000}-\x{f8ff}\x{f0000}-\x{ffffd}\x{100000}-\x{10fffd}";
92 /* C4 - Non-character code points */
93 $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}";
94 /* C5 - Surrogate codes */
95 $chars .= "\x{d800}-\x{dfff}";
96 /* C6 - Inappropriate for plain text */
97 $chars .= "\x{fff9}-\x{fffd}";
98 /* C7 - Inappropriate for canonical representation */
99 $chars .= "\x{2ff0}-\x{2ffb}";
100 /* C8 - Change display properties or are deprecated */
101 $chars .= "\x{340}\x{341}\x{200e}\x{200f}\x{202a}-\x{202e}\x{206a}-\x{206f}";
102 /* C9 - Tagging characters */
103 $chars .= "\x{e0001}\x{e0020}-\x{e007f}";
105 /* Nodeprep forbids some more characters */
106 $nodeprepchars = $chars;
107 $nodeprepchars .= "\x{22}\x{26}\x{27}\x{2f}\x{3a}\x{3c}\x{3e}\x{40}";
109 $parts = explode("/", $jid, 2);
110 if (count($parts) > 1) {
111 $resource = $parts[1];
112 if ($resource == '') {
113 // Warning: empty resource isn't legit.
114 // But if we're normalizing, we may as well take it...
120 $node = explode("@", $parts[0]);
121 if ((count($node) > 2) || (count($node) == 0)) {
122 // TRANS: Exception thrown when using too many @ signs in a Jabber ID.
123 throw new Exception(_m('Invalid JID: too many @s.'));
124 } else if (count($node) == 1) {
131 // TRANS: Exception thrown when using @ sign not followed by a Jabber ID.
132 throw new Exception(_m('Invalid JID: @ but no node'));
136 // Length limits per http://xmpp.org/rfcs/rfc3920.html#addressing
137 if ($node !== null) {
138 if (strlen($node) > 1023) {
139 // TRANS: Exception thrown when using too long a Jabber ID (>1023).
140 throw new Exception(_m('Invalid JID: node too long.'));
142 if (preg_match("/[".$nodeprepchars."]/u", $node)) {
143 // TRANS: Exception thrown when using an invalid Jabber ID.
144 // TRANS: %s is the invalid Jabber ID.
145 throw new Exception(sprintf(_m('Invalid JID node "%s".'),$node));
149 if (strlen($domain) > 1023) {
150 // TRANS: Exception thrown when using too long a Jabber domain (>1023).
151 throw new Exception(_m('Invalid JID: domain too long.'));
153 if (!common_valid_domain($domain)) {
154 // TRANS: Exception thrown when using an invalid Jabber domain name.
155 // TRANS: %s is the invalid domain name.
156 throw new Exception(sprintf(_m('Invalid JID domain name "%s".'),$domain));
159 if ($resource !== null) {
160 if (strlen($resource) > 1023) {
161 // TRANS: Exception thrown when using too long a resource (>1023).
162 throw new Exception("Invalid JID: resource too long.");
164 if (preg_match("/[".$chars."]/u", $resource)) {
165 // TRANS: Exception thrown when using an invalid Jabber resource.
166 // TRANS: %s is the invalid resource.
167 throw new Exception(sprintf(_m('Invalid JID resource "%s".'),$resource));
171 return array('node' => is_null($node) ? null : mb_strtolower($node),
172 'domain' => is_null($domain) ? null : mb_strtolower($domain),
173 'resource' => $resource);
177 * Checks whether a string is a syntactically valid Jabber ID (JID),
178 * either with or without a resource.
180 * Note that a bare domain can be a valid JID.
182 * @param string $jid string to check
183 * @param bool $check_domain whether we should validate that domain...
185 * @return boolean whether the string is a valid JID
187 protected function validateFullJid($jid, $check_domain=false)
190 $parts = $this->splitJid($jid);
192 if (!$this->checkDomain($parts['domain'])) {
196 return $parts['resource'] !== ''; // missing or present; empty ain't kosher
197 } catch (Exception $e) {
203 * Checks whether a string is a syntactically valid base Jabber ID (JID).
204 * A base JID won't include a resource specifier on the end; since we
205 * take it off when reading input we can't really use them reliably
206 * to direct outgoing messages yet (sorry guys!)
208 * Note that a bare domain can be a valid JID.
210 * @param string $jid string to check
211 * @param bool $check_domain whether we should validate that domain...
213 * @return boolean whether the string is a valid JID
215 protected function validateBaseJid($jid, $check_domain=false)
218 $parts = $this->splitJid($jid);
220 if (!$this->checkDomain($parts['domain'])) {
224 return ($parts['resource'] === null); // missing; empty ain't kosher
225 } catch (Exception $e) {
231 * Normalizes a Jabber ID for comparison, dropping the resource component if any.
233 * @param string $jid JID to check
234 * @param bool $check_domain if true, reject if the domain isn't findable
236 * @return string an equivalent JID in normalized (lowercase) form
238 function normalize($jid)
241 $parts = $this->splitJid($jid);
242 if ($parts['node'] !== null) {
243 return $parts['node'] . '@' . $parts['domain'];
245 return $parts['domain'];
247 } catch (Exception $e) {
253 * Check if this domain's got some legit DNS record
255 protected function checkDomain($domain)
257 if (checkdnsrr("_xmpp-server._tcp." . $domain, "SRV")) {
260 if (checkdnsrr($domain, "ANY")) {
266 function daemonScreenname()
268 $ret = $this->user . '@' . $this->server;
271 return $ret . '/' . $this->resource;
277 function validate($screenname)
279 return $this->validateBaseJid($screenname, common_config('email', 'check_domain'));
283 * Load related modules when needed
285 * @param string $cls Name of the class to be loaded
287 * @return boolean hook value; true means continue processing, false means stop.
290 function onAutoload($cls)
292 $dir = dirname(__FILE__);
297 require_once $dir . '/extlib/XMPPHP/XMPP.php';
301 return parent::onAutoload($cls);
304 function onStartImDaemonIoManagers(&$classes)
306 parent::onStartImDaemonIoManagers($classes);
307 $classes[] = new XmppManager($this); // handles pings/reconnects
311 function sendMessage($screenname, $body)
313 $this->queuedConnection()->message($screenname, $body, 'chat');
316 function sendNotice($screenname, Notice $notice)
319 $msg = $this->formatNotice($notice);
320 $entry = $this->format_entry($notice);
321 } catch (Exception $e) {
322 common_log(LOG_ERR, __METHOD__ . ": Discarding outgoing stanza because of exception: {$e->getMessage()}");
323 return false; // return value of sendNotice is never actually used as of now
325 $this->queuedConnection()->message($screenname, $msg, 'chat', null, $entry);
330 * extra information for XMPP messages, as defined by Twitter
332 * @param Profile $profile Profile of the sending user
333 * @param Notice $notice Notice being sent
335 * @return string Extra information (Atom, HTML, addresses) in string format
337 protected function format_entry(Notice $notice)
339 $profile = $notice->getProfile();
341 $entry = $notice->asAtomEntry(true, true);
343 $xs = new XMLStringer();
344 $xs->elementStart('html', array('xmlns' => 'http://jabber.org/protocol/xhtml-im'));
345 $xs->elementStart('body', array('xmlns' => 'http://www.w3.org/1999/xhtml'));
346 $xs->element('a', array('href' => $profile->profileurl), $profile->nickname);
348 $parent = $notice->getParent();
349 $orig_profile = $parent->getProfile();
350 $orig_profurl = $orig_profile->getUrl();
352 $xs->element('a', array('href' => $orig_profurl), $orig_profile->nickname);
354 } catch (InvalidUrlException $e) {
355 $xs->text(sprintf(' => %s', $orig_profile->nickname));
356 } catch (NoParentNoticeException $e) {
358 } catch (NoResultException $e) {
359 // Parent notice was probably deleted.
362 // FIXME: Why do we replace \t with ''? is it just to make it pretty? shouldn't whitespace be handled well...?
363 $xs->raw(str_replace("\t", "", $notice->getRendered()));
365 $xs->element('a', array(
366 'href'=>common_local_url('conversation',
367 array('id' => $notice->conversation)).'#notice-'.$notice->id),
368 // TRANS: Link description to notice in conversation.
369 // TRANS: %s is a notice ID.
370 sprintf(_m('[%u]'),$notice->id));
371 $xs->elementEnd('body');
372 $xs->elementEnd('html');
374 $html = $xs->getString();
376 return $html . ' ' . $entry;
379 function receiveRawMessage($pl)
381 $from = $this->normalize($pl['from']);
383 if ($pl['type'] != 'chat') {
384 $this->log(LOG_WARNING, "Ignoring message of type ".$pl['type']." from $from: " . $pl['xml']->toString());
388 if (mb_strlen($pl['body']) == 0) {
389 $this->log(LOG_WARNING, "Ignoring message with empty body from $from: " . $pl['xml']->toString());
393 $this->handleIncoming($from, $pl['body']);
399 * Build a queue-proxied XMPP interface object. Any outgoing messages
400 * will be run back through us for enqueing rather than sent directly.
403 * @throws Exception if server settings are invalid.
405 function queuedConnection(){
406 if(!isset($this->server)){
407 // TRANS: Exception thrown when the plugin configuration is incorrect.
408 throw new Exception(_m('You must specify a server in the configuration.'));
410 if(!isset($this->port)){
411 // TRANS: Exception thrown when the plugin configuration is incorrect.
412 throw new Exception(_m('You must specify a port in the configuration.'));
414 if(!isset($this->user)){
415 // TRANS: Exception thrown when the plugin configuration is incorrect.
416 throw new Exception(_m('You must specify a user in the configuration.'));
418 if(!isset($this->password)){
419 // TRANS: Exception thrown when the plugin configuration is incorrect.
420 throw new Exception(_m('You must specify a password in the configuration.'));
423 return new QueuedXMPP($this, $this->host ?
434 XMPPHP_Log::LEVEL_VERBOSE : null
439 * Add XMPP plugin daemon to the list of daemon to start
441 * @param array $daemons the list of daemons to run
443 * @return boolean hook return
445 function onGetValidDaemons(&$daemons)
447 if( isset($this->server) &&
448 isset($this->port) &&
449 isset($this->user) &&
450 isset($this->password) ){
455 . '/scripts/imdaemon.php'
463 function onPluginVersion(array &$versions)
465 $versions[] = array('name' => 'XMPP',
466 'version' => GNUSOCIAL_VERSION,
467 'author' => 'Craig Andrews, Evan Prodromou',
468 'homepage' => 'https://git.gnu.io/gnu/gnu-social/tree/master/plugins/XMPP',
470 // TRANS: Plugin description.
471 _m('The XMPP plugin allows users to send and receive notices over the XMPP/Jabber network.'));