root / trunk / phpBB / includes / functions_jabber.php
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| 1 | <?php
|
|---|---|
| 2 | /**
|
| 3 | * |
| 4 | * @package phpBB3 |
| 5 | * @copyright (c) 2007 phpBB Group |
| 6 | * @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2 |
| 7 | * |
| 8 | */ |
| 9 | |
| 10 | /**
|
| 11 | * @ignore |
| 12 | */ |
| 13 | if (!defined('IN_PHPBB')) |
| 14 | {
|
| 15 | exit;
|
| 16 | } |
| 17 | |
| 18 | /**
|
| 19 | * |
| 20 | * Jabber class from Flyspray project |
| 21 | * |
| 22 | * @version class.jabber2.php 1595 2008-09-19 (0.9.9) |
| 23 | * @copyright 2006 Flyspray.org |
| 24 | * @author Florian Schmitz (floele) |
| 25 | * |
| 26 | * Only slightly modified by Acyd Burn |
| 27 | * |
| 28 | * @package phpBB3 |
| 29 | */ |
| 30 | class jabber |
| 31 | {
|
| 32 | var $connection = null; |
| 33 | var $session = array(); |
| 34 | var $timeout = 10; |
| 35 | |
| 36 | var $server; |
| 37 | var $connect_server; |
| 38 | var $port; |
| 39 | var $username; |
| 40 | var $password; |
| 41 | var $use_ssl; |
| 42 | var $resource = 'functions_jabber.phpbb.php'; |
| 43 | |
| 44 | var $enable_logging; |
| 45 | var $log_array; |
| 46 | |
| 47 | var $features = array(); |
| 48 | |
| 49 | /**
|
| 50 | */ |
| 51 | function jabber($server, $port, $username, $password, $use_ssl = false) |
| 52 | {
|
| 53 | $this->connect_server = ($server) ? $server : 'localhost'; |
| 54 | $this->port = ($port) ? $port : 5222; |
| 55 | |
| 56 | // Get the server and the username
|
| 57 | if (strpos($username, '@') === false) |
| 58 | {
|
| 59 | $this->server = $this->connect_server; |
| 60 | $this->username = $username; |
| 61 | } |
| 62 | else
|
| 63 | {
|
| 64 | $jid = explode('@', $username, 2); |
| 65 | |
| 66 | $this->username = $jid[0]; |
| 67 | $this->server = $jid[1]; |
| 68 | } |
| 69 | |
| 70 | $this->password = $password; |
| 71 | $this->use_ssl = ($use_ssl && $this->can_use_ssl()) ? true : false; |
| 72 | |
| 73 | // Change port if we use SSL
|
| 74 | if ($this->port == 5222 && $this->use_ssl) |
| 75 | {
|
| 76 | $this->port = 5223; |
| 77 | } |
| 78 | |
| 79 | $this->enable_logging = true; |
| 80 | $this->log_array = array(); |
| 81 | } |
| 82 | |
| 83 | /**
|
| 84 | * Able to use the SSL functionality? |
| 85 | */ |
| 86 | function can_use_ssl() |
| 87 | {
|
| 88 | // 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)
|
| 89 | return ((version_compare(PHP_VERSION, '5.2.1', '<') || version_compare(PHP_VERSION, '5.2.3RC2', '>=')) && @extension_loaded('openssl')) ? true : false; |
| 90 | } |
| 91 | |
| 92 | /**
|
| 93 | * Able to use TLS? |
| 94 | */ |
| 95 | function can_use_tls() |
| 96 | {
|
| 97 | 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')) |
| 98 | {
|
| 99 | return false; |
| 100 | } |
| 101 | |
| 102 | /**
|
| 103 | * Make sure the encryption stream is supported |
| 104 | * Also seem to work without the crypto stream if correctly compiled |
| 105 | |
| 106 | $streams = stream_get_wrappers(); |
| 107 | |
| 108 | if (!in_array('streams.crypto', $streams))
|
| 109 | {
|
| 110 | return false; |
| 111 | } |
| 112 | */ |
| 113 | |
| 114 | return true; |
| 115 | } |
| 116 | |
| 117 | /**
|
| 118 | * Sets the resource which is used. No validation is done here, only escaping. |
| 119 | * @param string $name |
| 120 | * @access public |
| 121 | */ |
| 122 | function set_resource($name) |
| 123 | {
|
| 124 | $this->resource = $name; |
| 125 | } |
| 126 | |
| 127 | /**
|
| 128 | * Connect |
| 129 | */ |
| 130 | function connect() |
| 131 | {
|
| 132 | /* if (!$this->check_jid($this->username . '@' . $this->server))
|
| 133 | {
|
| 134 | $this->add_to_log('Error: Jabber ID is not valid: ' . $this->username . '@' . $this->server);
|
| 135 | return false; |
| 136 | }*/ |
| 137 | |
| 138 | $this->session['ssl'] = $this->use_ssl; |
| 139 | |
| 140 | if ($this->open_socket($this->connect_server, $this->port, $this->use_ssl)) |
| 141 | {
|
| 142 | $this->send("<?xml version='1.0' encoding='UTF-8' ?" . ">\n"); |
| 143 | $this->send("<stream:stream to='{$this->server}' xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' version='1.0'>\n"); |
| 144 | } |
| 145 | else
|
| 146 | {
|
| 147 | $this->add_to_log('Error: connect() #2'); |
| 148 | return false; |
| 149 | } |
| 150 | |
| 151 | // Now we listen what the server has to say...and give appropriate responses
|
| 152 | $this->response($this->listen()); |
| 153 | return true; |
| 154 | } |
| 155 | |
| 156 | /**
|
| 157 | * Disconnect |
| 158 | */ |
| 159 | function disconnect() |
| 160 | {
|
| 161 | if ($this->connected()) |
| 162 | {
|
| 163 | // disconnect gracefully
|
| 164 | if (isset($this->session['sent_presence'])) |
| 165 | {
|
| 166 | $this->send_presence('offline', '', true); |
| 167 | } |
| 168 | |
| 169 | $this->send('</stream:stream>'); |
| 170 | $this->session = array(); |
| 171 | return fclose($this->connection); |
| 172 | } |
| 173 | |
| 174 | return false; |
| 175 | } |
| 176 | |
| 177 | /**
|
| 178 | * Connected? |
| 179 | */ |
| 180 | function connected() |
| 181 | {
|
| 182 | return (is_resource($this->connection) && !feof($this->connection)) ? true : false; |
| 183 | } |
| 184 | |
| 185 | |
| 186 | /**
|
| 187 | * Initiates login (using data from contructor, after calling connect()) |
| 188 | * @access public |
| 189 | * @return bool |
| 190 | */ |
| 191 | function login() |
| 192 | {
|
| 193 | if (!sizeof($this->features)) |
| 194 | {
|
| 195 | $this->add_to_log('Error: No feature information from server available.'); |
| 196 | return false; |
| 197 | } |
| 198 | |
| 199 | return $this->response($this->features); |
| 200 | } |
| 201 | |
| 202 | /**
|
| 203 | * Send data to the Jabber server |
| 204 | * @param string $xml |
| 205 | * @access public |
| 206 | * @return bool |
| 207 | */ |
| 208 | function send($xml) |
| 209 | {
|
| 210 | if ($this->connected()) |
| 211 | {
|
| 212 | $xml = trim($xml); |
| 213 | $this->add_to_log('SEND: '. $xml); |
| 214 | return fwrite($this->connection, $xml); |
| 215 | } |
| 216 | else
|
| 217 | {
|
| 218 | $this->add_to_log('Error: Could not send, connection lost (flood?).'); |
| 219 | return false; |
| 220 | } |
| 221 | } |
| 222 | |
| 223 | /**
|
| 224 | * OpenSocket |
| 225 | * @param string $server host to connect to |
| 226 | * @param int $port port number |
| 227 | * @param bool $use_ssl use ssl or not |
| 228 | * @access public |
| 229 | * @return bool |
| 230 | */ |
| 231 | function open_socket($server, $port, $use_ssl = false) |
| 232 | {
|
| 233 | if (@function_exists('dns_get_record')) |
| 234 | {
|
| 235 | $record = @dns_get_record("_xmpp-client._tcp.$server", DNS_SRV); |
| 236 | if (!empty($record) && !empty($record[0]['target'])) |
| 237 | {
|
| 238 | $server = $record[0]['target']; |
| 239 | } |
| 240 | } |
| 241 | |
| 242 | $server = $use_ssl ? 'ssl://' . $server : $server; |
| 243 | |
| 244 | if ($this->connection = @fsockopen($server, $port, $errorno, $errorstr, $this->timeout)) |
| 245 | {
|
| 246 | socket_set_blocking($this->connection, 0); |
| 247 | socket_set_timeout($this->connection, 60); |
| 248 | |
| 249 | return true; |
| 250 | } |
| 251 | |
| 252 | // Apparently an error occured...
|
| 253 | $this->add_to_log('Error: open_socket() - ' . $errorstr); |
| 254 | return false; |
| 255 | } |
| 256 | |
| 257 | /**
|
| 258 | * Return log |
| 259 | */ |
| 260 | function get_log() |
| 261 | {
|
| 262 | if ($this->enable_logging && sizeof($this->log_array)) |
| 263 | {
|
| 264 | return implode("<br /><br />", $this->log_array); |
| 265 | } |
| 266 | |
| 267 | return ''; |
| 268 | } |
| 269 | |
| 270 | /**
|
| 271 | * Add information to log |
| 272 | */ |
| 273 | function add_to_log($string) |
| 274 | {
|
| 275 | if ($this->enable_logging) |
| 276 | {
|
| 277 | $this->log_array[] = utf8_htmlspecialchars($string); |
| 278 | } |
| 279 | } |
| 280 | |
| 281 | /**
|
| 282 | * Listens to the connection until it gets data or the timeout is reached. |
| 283 | * Thus, it should only be called if data is expected to be received. |
| 284 | * @access public |
| 285 | * @return mixed either false for timeout or an array with the received data |
| 286 | */ |
| 287 | function listen($timeout = 10, $wait = false) |
| 288 | {
|
| 289 | if (!$this->connected()) |
| 290 | {
|
| 291 | return false; |
| 292 | } |
| 293 | |
| 294 | // Wait for a response until timeout is reached
|
| 295 | $start = time(); |
| 296 | $data = ''; |
| 297 | |
| 298 | do
|
| 299 | {
|
| 300 | $read = trim(fread($this->connection, 4096)); |
| 301 | $data .= $read; |
| 302 | } |
| 303 | while (time() <= $start + $timeout && !feof($this->connection) && ($wait || $data == '' || $read != '' || (substr(rtrim($data), -1) != '>'))); |
| 304 | |
| 305 | if ($data != '') |
| 306 | {
|
| 307 | $this->add_to_log('RECV: '. $data); |
| 308 | return $this->xmlize($data); |
| 309 | } |
| 310 | else
|
| 311 | {
|
| 312 | $this->add_to_log('Timeout, no response from server.'); |
| 313 | return false; |
| 314 | } |
| 315 | } |
| 316 | |
| 317 | /**
|
| 318 | * Initiates account registration (based on data used for contructor) |
| 319 | * @access public |
| 320 | * @return bool |
| 321 | */ |
| 322 | function register() |
| 323 | {
|
| 324 | if (!isset($this->session['id']) || isset($this->session['jid'])) |
| 325 | {
|
| 326 | $this->add_to_log('Error: Cannot initiate registration.'); |
| 327 | return false; |
| 328 | } |
| 329 | |
| 330 | $this->send("<iq type='get' id='reg_1'><query xmlns='jabber:iq:register'/></iq>"); |
| 331 | return $this->response($this->listen()); |
| 332 | } |
| 333 | |
| 334 | /**
|
| 335 | * Sets account presence. No additional info required (default is "online" status) |
| 336 | * @param $message online, offline... |
| 337 | * @param $type dnd, away, chat, xa or nothing |
| 338 | * @param $unavailable set this to true if you want to become unavailable |
| 339 | * @access public |
| 340 | * @return bool |
| 341 | */ |
| 342 | function send_presence($message = '', $type = '', $unavailable = false) |
| 343 | {
|
| 344 | if (!isset($this->session['jid'])) |
| 345 | {
|
| 346 | $this->add_to_log('ERROR: send_presence() - Cannot set presence at this point, no jid given.'); |
| 347 | return false; |
| 348 | } |
| 349 | |
| 350 | $type = strtolower($type); |
| 351 | $type = (in_array($type, array('dnd', 'away', 'chat', 'xa'))) ? '<show>'. $type .'</show>' : ''; |
| 352 | |
| 353 | $unavailable = ($unavailable) ? " type='unavailable'" : ''; |
| 354 | $message = ($message) ? '<status>' . utf8_htmlspecialchars($message) .'</status>' : ''; |
| 355 | |
| 356 | $this->session['sent_presence'] = !$unavailable; |
| 357 | |
| 358 | return $this->send("<presence$unavailable>" . $type . $message . '</presence>'); |
| 359 | } |
| 360 | |
| 361 | /**
|
| 362 | * This handles all the different XML elements |
| 363 | * @param array $xml |
| 364 | * @access public |
| 365 | * @return bool |
| 366 | */ |
| 367 | function response($xml) |
| 368 | {
|
| 369 | if (!is_array($xml) || !sizeof($xml)) |
| 370 | {
|
| 371 | return false; |
| 372 | } |
| 373 | |
| 374 | // did we get multiple elements? do one after another
|
| 375 | // array('message' => ..., 'presence' => ...)
|
| 376 | if (sizeof($xml) > 1) |
| 377 | {
|
| 378 | foreach ($xml as $key => $value) |
| 379 | {
|
| 380 | $this->response(array($key => $value)); |
| 381 | } |
| 382 | return;
|
| 383 | } |
| 384 | else
|
| 385 | {
|
| 386 | // or even multiple elements of the same type?
|
| 387 | // array('message' => array(0 => ..., 1 => ...))
|
| 388 | if (sizeof(reset($xml)) > 1) |
| 389 | {
|
| 390 | foreach (reset($xml) as $value) |
| 391 | {
|
| 392 | $this->response(array(key($xml) => array(0 => $value))); |
| 393 | } |
| 394 | return;
|
| 395 | } |
| 396 | } |
| 397 | |
| 398 | switch (key($xml)) |
| 399 | {
|
| 400 | case 'stream:stream': |
| 401 | // Connection initialised (or after authentication). Not much to do here...
|
| 402 | |
| 403 | if (isset($xml['stream:stream'][0]['#']['stream:features'])) |
| 404 | {
|
| 405 | // we already got all info we need
|
| 406 | $this->features = $xml['stream:stream'][0]['#']; |
| 407 | } |
| 408 | else
|
| 409 | {
|
| 410 | $this->features = $this->listen(); |
| 411 | } |
| 412 | |
| 413 | $second_time = isset($this->session['id']); |
| 414 | $this->session['id'] = $xml['stream:stream'][0]['@']['id']; |
| 415 | |
| 416 | if ($second_time) |
| 417 | {
|
| 418 | // If we are here for the second time after TLS, we need to continue logging in
|
| 419 | return $this->login(); |
| 420 | } |
| 421 | |
| 422 | // go on with authentication?
|
| 423 | if (isset($this->features['stream:features'][0]['#']['bind']) || !empty($this->session['tls'])) |
| 424 | {
|
| 425 | return $this->response($this->features); |
| 426 | } |
| 427 | break;
|
| 428 | |
| 429 | case 'stream:features': |
| 430 | // Resource binding after successful authentication
|
| 431 | if (isset($this->session['authenticated'])) |
| 432 | {
|
| 433 | // session required?
|
| 434 | $this->session['sess_required'] = isset($xml['stream:features'][0]['#']['session']); |
| 435 | |
| 436 | $this->send("<iq type='set' id='bind_1'> |
| 437 | <bind xmlns='urn:ietf:params:xml:ns:xmpp-bind'> |
| 438 | <resource>" . utf8_htmlspecialchars($this->resource) . '</resource> |
| 439 | </bind> |
| 440 | </iq>');
|
| 441 | return $this->response($this->listen()); |
| 442 | } |
| 443 | |
| 444 | // Let's use TLS if SSL is not enabled and we can actually use it
|
| 445 | if (!$this->session['ssl'] && $this->can_use_tls() && $this->can_use_ssl() && isset($xml['stream:features'][0]['#']['starttls'])) |
| 446 | {
|
| 447 | $this->add_to_log('Switching to TLS.'); |
| 448 | $this->send("<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>\n"); |
| 449 | return $this->response($this->listen()); |
| 450 | } |
| 451 | |
| 452 | // Does the server support SASL authentication?
|
| 453 | |
| 454 | // I hope so, because we do (and no other method).
|
| 455 | if (isset($xml['stream:features'][0]['#']['mechanisms'][0]['@']['xmlns']) && $xml['stream:features'][0]['#']['mechanisms'][0]['@']['xmlns'] == 'urn:ietf:params:xml:ns:xmpp-sasl') |
| 456 | {
|
| 457 | // Now decide on method
|
| 458 | $methods = array(); |
| 459 | |
| 460 | foreach ($xml['stream:features'][0]['#']['mechanisms'][0]['#']['mechanism'] as $value) |
| 461 | {
|
| 462 | $methods[] = $value['#']; |
| 463 | } |
| 464 | |
| 465 | // we prefer DIGEST-MD5
|
| 466 | // we don't want to use plain authentication (neither does the server usually) if no encryption is in place
|
| 467 | |
| 468 | // http://www.xmpp.org/extensions/attic/jep-0078-1.7.html
|
| 469 | // The plaintext mechanism SHOULD NOT be used unless the underlying stream is encrypted (using SSL or TLS)
|
| 470 | // and the client has verified that the server certificate is signed by a trusted certificate authority.
|
| 471 | |
| 472 | if (in_array('DIGEST-MD5', $methods)) |
| 473 | {
|
| 474 | $this->send("<auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl' mechanism='DIGEST-MD5'/>"); |
| 475 | } |
| 476 | else if (in_array('PLAIN', $methods) && ($this->session['ssl'] || !empty($this->session['tls']))) |
| 477 | {
|
| 478 | // http://www.ietf.org/rfc/rfc4616.txt (PLAIN SASL Mechanism)
|
| 479 | $this->send("<auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl' mechanism='PLAIN'>" |
| 480 | . base64_encode($this->username . '@' . $this->server . chr(0) . $this->username . 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 = $this->parse_data($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 | 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 $data Needs data from the client-server connection |
| 698 | * @access public |
| 699 | * @return string |
| 700 | */ |
| 701 | function encrypt_password($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 $data |
| 732 | * @access public |
| 733 | * @return array a => b ... |
| 734 | */ |
| 735 | function parse_data($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 $data |
| 764 | * @access public |
| 765 | * @return string |
| 766 | */ |
| 767 | function implode_data($data) |
| 768 | {
|
| 769 | $return = array(); |
| 770 | foreach ($data as $key => $value) |
| 771 | {
|
| 772 | $return[] = $key . '="' . $value . '"'; |
| 773 | } |
| 774 | return implode(',', $return); |
| 775 | } |
| 776 | |
| 777 | /**
|
| 778 | * xmlize() |
| 779 | * @author Hans Anderson |
| 780 | * @copyright Hans Anderson / http://www.hansanderson.com/php/xml/ |
| 781 | */ |
| 782 | function xmlize($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]['#'] = $this->_xml_depth($vals, $i); |
| 804 | |
| 805 | if (substr($data, 0, 5) != '<?xml') |
| 806 | {
|
| 807 | $array = $array['root'][0]['#']; |
| 808 | } |
| 809 | |
| 810 | return $array; |
| 811 | } |
| 812 | |
| 813 | /**
|
| 814 | * _xml_depth() |
| 815 | * @author Hans Anderson |
| 816 | * @copyright Hans Anderson / http://www.hansanderson.com/php/xml/ |
| 817 | */ |
| 818 | function _xml_depth($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]['#'] = $this->_xml_depth($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 | } |