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add some properties
[phpbb.git] / phpBB / includes / functions_jabber.php
blob5fc7123db7322fbdefe0973e7c11b4e0b6aecb52
1 <?php
2 /**
3 *
4 * @package phpBB3
5 * @version $Id$
6 * @copyright (c) 2007 phpBB Group
7 * @license http://opensource.org/licenses/gpl-license.php GNU Public License
8 *
9 */
10
11 /**
12 * @ignore
13 */
14 if (!defined('IN_PHPBB'))
15 {
16 exit;
17 }
18
19 /**
20 *
21 * Jabber class from Flyspray project
22 *
23 * @version class.jabber2.php 1595 2008-09-19 (0.9.9)
24 * @copyright 2006 Flyspray.org
25 * @author Florian Schmitz (floele)
26 *
27 * Only slightly modified by Acyd Burn
28 *
29 * @package phpBB3
30 */
31 class jabber
32 {
33 private $connection = null;
34 private $session = array();
35 private $timeout = 10;
36
37 private $server;
38 private $connect_server;
39 private $port;
40 private $username;
41 private $password;
42 private $use_ssl;
43 private $resource = 'functions_jabber.phpbb.php';
44
45 private $enable_logging;
46 private $log_array;
47
48 private $features = array();
49
50 /**
51 */
52 function __construct($server, $port, $username, $password, $use_ssl = false)
53 {
54 $this->connect_server = ($server) ? $server : 'localhost';
55 $this->port = ($port) ? $port : 5222;
56
57 // Get the server and the username
58 if (strpos($username, '@') === false)
59 {
60 $this->server = $this->connect_server;
61 $this->username = $username;
62 }
63 else
64 {
65 $jid = explode('@', $username, 2);
66
67 $this->username = $jid[0];
68 $this->server = $jid[1];
69 }
70
71 $this->password = $password;
72 $this->use_ssl = ($use_ssl && self::can_use_ssl()) ? true : false;
73
74 // Change port if we use SSL
75 if ($this->port == 5222 && $this->use_ssl)
76 {
77 $this->port = 5223;
78 }
79
80 $this->enable_logging = true;
81 $this->log_array = array();
82 }
83
84 /**
85 * Able to use the SSL functionality?
86 */
87 public static function can_use_ssl()
88 {
89 // Will not work with PHP >= 5.2.1 or < 5.2.3RC2 until timeout problem with ssl hasn't been fixed (http://bugs.php.net/41236)
90 return ((version_compare(PHP_VERSION, '5.2.1', '<') || version_compare(PHP_VERSION, '5.2.3RC2', '>=')) && @extension_loaded('openssl')) ? true : false;
91 }
92
93 /**
94 * Able to use TLS?
95 */
96 public static function can_use_tls()
97 {
98 if (!@extension_loaded('openssl') || !function_exists('stream_socket_enable_crypto') || !function_exists('stream_get_meta_data') || !function_exists('socket_set_blocking') || !function_exists('stream_get_wrappers'))
99 {
100 return false;
101 }
102
103 /**
104 * Make sure the encryption stream is supported
105 * Also seem to work without the crypto stream if correctly compiled
106
107 $streams = stream_get_wrappers();
108
109 if (!in_array('streams.crypto', $streams))
110 {
111 return false;
112 }
113 */
114
115 return true;
116 }
117
118 /**
119 * Sets the resource which is used. No validation is done here, only escaping.
120 * @param string $name
121 * @access public
122 */
123 public function set_resource($name)
124 {
125 $this->resource = $name;
126 }
127
128 /**
129 * Connect
130 */
131 public function connect()
132 {
133 /* if (!$this->check_jid($this->username . '@' . $this->server))
134 {
135 $this->add_to_log('Error: Jabber ID is not valid: ' . $this->username . '@' . $this->server);
136 return false;
137 }*/
138
139 $this->session['ssl'] = $this->use_ssl;
140
141 if ($this->open_socket($this->connect_server, $this->port, $this->use_ssl))
142 {
143 $this->send("<?xml version='1.0' encoding='UTF-8' ?" . ">\n");
144 $this->send("<stream:stream to='{$this->server}' xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' version='1.0'>\n");
145 }
146 else
147 {
148 $this->add_to_log('Error: connect() #2');
149 return false;
150 }
151
152 // Now we listen what the server has to say...and give appropriate responses
153 $this->response($this->listen());
154 return true;
155 }
156
157 /**
158 * Disconnect
159 */
160 public function disconnect()
161 {
162 if ($this->connected())
163 {
164 // disconnect gracefully
165 if (isset($this->session['sent_presence']))
166 {
167 $this->send_presence('offline', '', true);
168 }
169
170 $this->send('</stream:stream>');
171 $this->session = array();
172 return fclose($this->connection);
173 }
174
175 return false;
176 }
177
178 /**
179 * Connected?
180 */
181 public function connected()
182 {
183 return (is_resource($this->connection) && !feof($this->connection)) ? true : false;
184 }
185
186
187 /**
188 * Initiates login (using data from contructor, after calling connect())
189 * @access public
190 * @return bool
191 */
192 public function login()
193 {
194 if (!sizeof($this->features))
195 {
196 $this->add_to_log('Error: No feature information from server available.');
197 return false;
198 }
199
200 return $this->response($this->features);
201 }
202
203 /**
204 * Send data to the Jabber server
205 * @param string $xml
206 * @access private
207 * @return bool
208 */
209 private function send($xml)
210 {
211 if ($this->connected())
212 {
213 $xml = trim($xml);
214 $this->add_to_log('SEND: '. $xml);
215 return fwrite($this->connection, $xml);
216 }
217 else
218 {
219 $this->add_to_log('Error: Could not send, connection lost (flood?).');
220 return false;
221 }
222 }
223
224 /**
225 * OpenSocket
226 * @param string $server host to connect to
227 * @param int $port port number
228 * @param bool $use_ssl use ssl or not
229 * @access private
230 * @return bool
231 */
232 private function open_socket($server, $port, $use_ssl = false)
233 {
234 if (@function_exists('dns_get_record'))
235 {
236 $record = @dns_get_record("_xmpp-client._tcp.$server", DNS_SRV);
237 if (!empty($record) && !empty($record[0]['target']))
238 {
239 $server = $record[0]['target'];
240 }
241 }
242
243 $server = $use_ssl ? 'ssl://' . $server : $server;
244
245 if ($this->connection = @fsockopen($server, $port, $errorno, $errorstr, $this->timeout))
246 {
247 socket_set_blocking($this->connection, 0);
248 socket_set_timeout($this->connection, 60);
249
250 return true;
251 }
252
253 // Apparently an error occured...
254 $this->add_to_log('Error: open_socket() - ' . $errorstr);
255 return false;
256 }
257
258 /**
259 * Return log
260 */
261 public function get_log()
262 {
263 if ($this->enable_logging && sizeof($this->log_array))
264 {
265 return implode("<br /><br />", $this->log_array);
266 }
267
268 return '';
269 }
270
271 /**
272 * Add information to log
273 */
274 private function add_to_log($string)
275 {
276 if ($this->enable_logging)
277 {
278 $this->log_array[] = utf8_htmlspecialchars($string);
279 }
280 }
281
282 /**
283 * Listens to the connection until it gets data or the timeout is reached.
284 * Thus, it should only be called if data is expected to be received.
285 * @access private
286 * @return mixed either false for timeout or an array with the received data
287 */
288 private function listen($timeout = 10, $wait = false)
289 {
290 if (!$this->connected())
291 {
292 return false;
293 }
294
295 // Wait for a response until timeout is reached
296 $start = time();
297 $data = '';
298
299 do
300 {
301 $read = trim(fread($this->connection, 4096));
302 $data .= $read;
303 }
304 while (time() <= $start + $timeout && !feof($this->connection) && ($wait || $data == '' || $read != '' || (substr(rtrim($data), -1) != '>')));
305
306 if ($data != '')
307 {
308 $this->add_to_log('RECV: '. $data);
309 return self::xmlize($data);
310 }
311 else
312 {
313 $this->add_to_log('Timeout, no response from server.');
314 return false;
315 }
316 }
317
318 /**
319 * Initiates account registration (based on data used for contructor)
320 * @access private
321 * @return bool
322 */
323 private function register()
324 {
325 if (!isset($this->session['id']) || isset($this->session['jid']))
326 {
327 $this->add_to_log('Error: Cannot initiate registration.');
328 return false;
329 }
330
331 $this->send("<iq type='get' id='reg_1'><query xmlns='jabber:iq:register'/></iq>");
332 return $this->response($this->listen());
333 }
334
335 /**
336 * Sets account presence. No additional info required (default is "online" status)
337 * @param $message online, offline...
338 * @param $type dnd, away, chat, xa or nothing
339 * @param $unavailable set this to true if you want to become unavailable
340 * @access private
341 * @return bool
342 */
343 private function send_presence($message = '', $type = '', $unavailable = false)
344 {
345 if (!isset($this->session['jid']))
346 {
347 $this->add_to_log('ERROR: send_presence() - Cannot set presence at this point, no jid given.');
348 return false;
349 }
350
351 $type = strtolower($type);
352 $type = (in_array($type, array('dnd', 'away', 'chat', 'xa'))) ? '<show>'. $type .'</show>' : '';
353
354 $unavailable = ($unavailable) ? " type='unavailable'" : '';
355 $message = ($message) ? '<status>' . utf8_htmlspecialchars($message) .'</status>' : '';
356
357 $this->session['sent_presence'] = !$unavailable;
358
359 return $this->send("<presence$unavailable>" . $type . $message . '</presence>');
360 }
361
362 /**
363 * This handles all the different XML elements
364 * @param array $xml
365 * @access private
366 * @return bool
367 */
368 private function response($xml)
369 {
370 if (!is_array($xml) || !sizeof($xml))
371 {
372 return false;
373 }
374
375 // did we get multiple elements? do one after another
376 // array('message' => ..., 'presence' => ...)
377 if (sizeof($xml) > 1)
378 {
379 foreach ($xml as $key => $value)
380 {
381 $this->response(array($key => $value));
382 }
383 return;
384 }
385 else
386 {
387 // or even multiple elements of the same type?
388 // array('message' => array(0 => ..., 1 => ...))
389 if (sizeof(reset($xml)) > 1)
390 {
391 foreach (reset($xml) as $value)
392 {
393 $this->response(array(key($xml) => array(0 => $value)));
394 }
395 return;
396 }
397 }
398
399 switch (key($xml))
400 {
401 case 'stream:stream':
402 // Connection initialised (or after authentication). Not much to do here...
403
404 if (isset($xml['stream:stream'][0]['#']['stream:features']))
405 {
406 // we already got all info we need
407 $this->features = $xml['stream:stream'][0]['#'];
408 }
409 else
410 {
411 $this->features = $this->listen();
412 }
413
414 $second_time = isset($this->session['id']);
415 $this->session['id'] = $xml['stream:stream'][0]['@']['id'];
416
417 if ($second_time)
418 {
419 // If we are here for the second time after TLS, we need to continue logging in
420 return $this->login();
421 }
422
423 // go on with authentication?
424 if (isset($this->features['stream:features'][0]['#']['bind']) || !empty($this->session['tls']))
425 {
426 return $this->response($this->features);
427 }
428 break;
429
430 case 'stream:features':
431 // Resource binding after successful authentication
432 if (isset($this->session['authenticated']))
433 {
434 // session required?
435 $this->session['sess_required'] = isset($xml['stream:features'][0]['#']['session']);
436
437 $this->send("<iq type='set' id='bind_1'>
438 <bind xmlns='urn:ietf:params:xml:ns:xmpp-bind'>
439 <resource>" . utf8_htmlspecialchars($this->resource) . '</resource>
440 </bind>
441 </iq>');
442 return $this->response($this->listen());
443 }
444
445 // Let's use TLS if SSL is not enabled and we can actually use it
446 if (!$this->session['ssl'] && self::can_use_tls() && self::can_use_ssl() && isset($xml['stream:features'][0]['#']['starttls']))
447 {
448 $this->add_to_log('Switching to TLS.');
449 $this->send("<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>\n");
450 return $this->response($this->listen());
451 }
452
453 // Does the server support SASL authentication?
454
455 // I hope so, because we do (and no other method).
456 if (isset($xml['stream:features'][0]['#']['mechanisms'][0]['@']['xmlns']) && $xml['stream:features'][0]['#']['mechanisms'][0]['@']['xmlns'] == 'urn:ietf:params:xml:ns:xmpp-sasl')
457 {
458 // Now decide on method
459 $methods = array();
460
461 foreach ($xml['stream:features'][0]['#']['mechanisms'][0]['#']['mechanism'] as $value)
462 {
463 $methods[] = $value['#'];
464 }
465
466 // we prefer DIGEST-MD5
467 // we don't want to use plain authentication (neither does the server usually) if no encryption is in place
468
469 // http://www.xmpp.org/extensions/attic/jep-0078-1.7.html
470 // The plaintext mechanism SHOULD NOT be used unless the underlying stream is encrypted (using SSL or TLS)
471 // and the client has verified that the server certificate is signed by a trusted certificate authority.
472
473 if (in_array('DIGEST-MD5', $methods))
474 {
475 $this->send("<auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl' mechanism='DIGEST-MD5'/>");
476 }
477 else if (in_array('PLAIN', $methods) && ($this->session['ssl'] || !empty($this->session['tls'])))
478 {
479 $this->send("<auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl' mechanism='PLAIN'>"
480 . base64_encode(chr(0) . $this->username . '@' . $this->server . chr(0) . $this->password) .
481 '</auth>');
482 }
483 else if (in_array('ANONYMOUS', $methods))
484 {
485 $this->send("<auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl' mechanism='ANONYMOUS'/>");
486 }
487 else
488 {
489 // not good...
490 $this->add_to_log('Error: No authentication method supported.');
491 $this->disconnect();
492 return false;
493 }
494
495 return $this->response($this->listen());
496 }
497 else
498 {
499 // ok, this is it. bye.
500 $this->add_to_log('Error: Server does not offer SASL authentication.');
501 $this->disconnect();
502 return false;
503 }
504 break;
505
506 case 'challenge':
507 // continue with authentication...a challenge literally -_-
508 $decoded = base64_decode($xml['challenge'][0]['#']);
509 $decoded = self::parse_data($decoded);
510
511 if (!isset($decoded['digest-uri']))
512 {
513 $decoded['digest-uri'] = 'xmpp/'. $this->server;
514 }
515
516 // better generate a cnonce, maybe it's needed
517 $decoded['cnonce'] = base64_encode(md5(uniqid(mt_rand(), true)));
518
519 // second challenge?
520 if (isset($decoded['rspauth']))
521 {
522 $this->send("<response xmlns='urn:ietf:params:xml:ns:xmpp-sasl'/>");
523 }
524 else
525 {
526 // Make sure we only use 'auth' for qop (relevant for $this->encrypt_password())
527 // If the <response> is choking up on the changed parameter we may need to adjust encrypt_password() directly
528 if (isset($decoded['qop']) && $decoded['qop'] != 'auth' && strpos($decoded['qop'], 'auth') !== false)
529 {
530 $decoded['qop'] = 'auth';
531 }
532
533 $response = array(
534 'username' => $this->username,
535 'response' => $this->encrypt_password(array_merge($decoded, array('nc' => '00000001'))),
536 'charset' => 'utf-8',
537 'nc' => '00000001',
538 'qop' => 'auth', // only auth being supported
539 );
540
541 foreach (array('nonce', 'digest-uri', 'realm', 'cnonce') as $key)
542 {
543 if (isset($decoded[$key]))
544 {
545 $response[$key] = $decoded[$key];
546 }
547 }
548
549 $this->send("<response xmlns='urn:ietf:params:xml:ns:xmpp-sasl'>" . base64_encode($this->implode_data($response)) . '</response>');
550 }
551
552 return $this->response($this->listen());
553 break;
554
555 case 'failure':
556 $this->add_to_log('Error: Server sent "failure".');
557 $this->disconnect();
558 return false;
559 break;
560
561 case 'proceed':
562 // continue switching to TLS
563 $meta = stream_get_meta_data($this->connection);
564 socket_set_blocking($this->connection, 1);
565
566 if (!stream_socket_enable_crypto($this->connection, true, STREAM_CRYPTO_METHOD_TLS_CLIENT))
567 {
568 $this->add_to_log('Error: TLS mode change failed.');
569 return false;
570 }
571
572 socket_set_blocking($this->connection, $meta['blocked']);
573 $this->session['tls'] = true;
574
575 // new stream
576 $this->send("<?xml version='1.0' encoding='UTF-8' ?" . ">\n");
577 $this->send("<stream:stream to='{$this->server}' xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' version='1.0'>\n");
578
579 return $this->response($this->listen());
580 break;
581
582 case 'success':
583 // Yay, authentication successful.
584 $this->send("<stream:stream to='{$this->server}' xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' version='1.0'>\n");
585 $this->session['authenticated'] = true;
586
587 // we have to wait for another response
588 return $this->response($this->listen());
589 break;
590
591 case 'iq':
592 // we are not interested in IQs we did not expect
593 if (!isset($xml['iq'][0]['@']['id']))
594 {
595 return false;
596 }
597
598 // multiple possibilities here
599 switch ($xml['iq'][0]['@']['id'])
600 {
601 case 'bind_1':
602 $this->session['jid'] = $xml['iq'][0]['#']['bind'][0]['#']['jid'][0]['#'];
603
604 // and (maybe) yet another request to be able to send messages *finally*
605 if ($this->session['sess_required'])
606 {
607 $this->send("<iq to='{$this->server}' type='set' id='sess_1'>
608 <session xmlns='urn:ietf:params:xml:ns:xmpp-session'/>
609 </iq>");
610 return $this->response($this->listen());
611 }
612
613 return true;
614 break;
615
616 case 'sess_1':
617 return true;
618 break;
619
620 case 'reg_1':
621 $this->send("<iq type='set' id='reg_2'>
622 <query xmlns='jabber:iq:register'>
623 <username>" . utf8_htmlspecialchars($this->username) . "</username>
624 <password>" . utf8_htmlspecialchars($this->password) . "</password>
625 </query>
626 </iq>");
627 return $this->response($this->listen());
628 break;
629
630 case 'reg_2':
631 // registration end
632 if (isset($xml['iq'][0]['#']['error']))
633 {
634 $this->add_to_log('Warning: Registration failed.');
635 return false;
636 }
637 return true;
638 break;
639
640 case 'unreg_1':
641 return true;
642 break;
643
644 default:
645 $this->add_to_log('Notice: Received unexpected IQ.');
646 return false;
647 break;
648 }
649 break;
650
651 case 'message':
652 // we are only interested in content...
653 if (!isset($xml['message'][0]['#']['body']))
654 {
655 return false;
656 }
657
658 $message['body'] = $xml['message'][0]['#']['body'][0]['#'];
659 $message['from'] = $xml['message'][0]['@']['from'];
660
661 if (isset($xml['message'][0]['#']['subject']))
662 {
663 $message['subject'] = $xml['message'][0]['#']['subject'][0]['#'];
664 }
665 $this->session['messages'][] = $message;
666 break;
667
668 default:
669 // hm...don't know this response
670 $this->add_to_log('Notice: Unknown server response (' . key($xml) . ')');
671 return false;
672 break;
673 }
674 }
675
676 public function send_message($to, $text, $subject = '', $type = 'normal')
677 {
678 if (!isset($this->session['jid']))
679 {
680 return false;
681 }
682
683 if (!in_array($type, array('chat', 'normal', 'error', 'groupchat', 'headline')))
684 {
685 $type = 'normal';
686 }
687
688 return $this->send("<message from='" . utf8_htmlspecialchars($this->session['jid']) . "' to='" . utf8_htmlspecialchars($to) . "' type='$type' id='" . uniqid('msg') . "'>
689 <subject>" . utf8_htmlspecialchars($subject) . "</subject>
690 <body>" . utf8_htmlspecialchars($text) . "</body>
691 </message>"
692 );
693 }
694
695 /**
696 * Encrypts a password as in RFC 2831
697 * @param array $data Needs data from the client-server connection
698 * @access public
699 * @return string
700 */
701 public function encrypt_password($data)
702 {
703 // let's me think about <challenge> again...
704 foreach (array('realm', 'cnonce', 'digest-uri') as $key)
705 {
706 if (!isset($data[$key]))
707 {
708 $data[$key] = '';
709 }
710 }
711
712 $pack = md5($this->username . ':' . $data['realm'] . ':' . $this->password);
713
714 if (isset($data['authzid']))
715 {
716 $a1 = pack('H32', $pack) . sprintf(':%s:%s:%s', $data['nonce'], $data['cnonce'], $data['authzid']);
717 }
718 else
719 {
720 $a1 = pack('H32', $pack) . sprintf(':%s:%s', $data['nonce'], $data['cnonce']);
721 }
722
723 // should be: qop = auth
724 $a2 = 'AUTHENTICATE:'. $data['digest-uri'];
725
726 return md5(sprintf('%s:%s:%s:%s:%s:%s', md5($a1), $data['nonce'], $data['nc'], $data['cnonce'], $data['qop'], md5($a2)));
727 }
728
729 /**
730 * parse_data like a="b",c="d",... or like a="a, b", c, d="e", f=g,...
731 * @param string $data
732 * @access private
733 * @return array a => b ...
734 */
735 private static function parse_data($data)
736 {
737 $data = explode(',', $data);
738 $pairs = array();
739 $key = false;
740
741 foreach ($data as $pair)
742 {
743 $dd = strpos($pair, '=');
744
745 if ($dd)
746 {
747 $key = trim(substr($pair, 0, $dd));
748 $pairs[$key] = trim(trim(substr($pair, $dd + 1)), '"');
749 }
750 else if (strpos(strrev(trim($pair)), '"') === 0 && $key)
751 {
752 // We are actually having something left from "a, b" values, add it to the last one we handled.
753 $pairs[$key] .= ',' . trim(trim($pair), '"');
754 continue;
755 }
756 }
757
758 return $pairs;
759 }
760
761 /**
762 * opposite of jabber::parse_data()
763 * @param array $data
764 * @access private
765 * @return string
766 */
767 private function implode_data($data)
768 {
769 $return = array();
770 foreach ($data as $key => $value)
771 {
772 $return[] = $key . '="' . $value . '"';
773 }
774 return implode(',', $return);
775 }
776
777 /**
778 * xmlize()
779 * @author Hans Anderson
780 * @copyright Hans Anderson / http://www.hansanderson.com/php/xml/
781 */
782 private static function xmlize($data, $skip_white = 1, $encoding = 'UTF-8')
783 {
784 $data = trim($data);
785
786 if (substr($data, 0, 5) != '<?xml')
787 {
788 // mod
789 $data = '<root>'. $data . '</root>';
790 }
791
792 $vals = $index = $array = array();
793 $parser = xml_parser_create($encoding);
794 xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0);
795 xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, $skip_white);
796 xml_parse_into_struct($parser, $data, $vals, $index);
797 xml_parser_free($parser);
798
799 $i = 0;
800 $tagname = $vals[$i]['tag'];
801
802 $array[$tagname][0]['@'] = (isset($vals[$i]['attributes'])) ? $vals[$i]['attributes'] : array();
803 $array[$tagname][0]['#'] = self::_xml_depth($vals, $i);
804
805 if (substr($data, 0, 5) != '<?xml')
806 {
807 $array = $array['root'][0]['#'];
808 }
809
810 return $array;
811 }
812
813 /**
814 * _xml_depth()
815 * @author Hans Anderson
816 * @copyright Hans Anderson / http://www.hansanderson.com/php/xml/
817 */
818 private static function _xml_depth($vals, &$i)
819 {
820 $children = array();
821
822 if (isset($vals[$i]['value']))
823 {
824 array_push($children, $vals[$i]['value']);
825 }
826
827 while (++$i < sizeof($vals))
828 {
829 switch ($vals[$i]['type'])
830 {
831 case 'open':
832
833 $tagname = (isset($vals[$i]['tag'])) ? $vals[$i]['tag'] : '';
834 $size = (isset($children[$tagname])) ? sizeof($children[$tagname]) : 0;
835
836 if (isset($vals[$i]['attributes']))
837 {
838 $children[$tagname][$size]['@'] = $vals[$i]['attributes'];
839 }
840
841 $children[$tagname][$size]['#'] = self::_xml_depth($vals, $i);
842
843 break;
844
845 case 'cdata':
846 array_push($children, $vals[$i]['value']);
847 break;
848
849 case 'complete':
850
851 $tagname = $vals[$i]['tag'];
852 $size = (isset($children[$tagname])) ? sizeof($children[$tagname]) : 0;
853 $children[$tagname][$size]['#'] = (isset($vals[$i]['value'])) ? $vals[$i]['value'] : array();
854
855 if (isset($vals[$i]['attributes']))
856 {
857 $children[$tagname][$size]['@'] = $vals[$i]['attributes'];
858 }
859
860 break;
861
862 case 'close':
863 return $children;
864 break;
865 }
866 }
867
868 return $children;
869 }
870 }
871
872 ?>
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