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-rw-r--r--includes/class.jabber2.php943
1 files changed, 943 insertions, 0 deletions
diff --git a/includes/class.jabber2.php b/includes/class.jabber2.php
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+++ b/includes/class.jabber2.php
@@ -0,0 +1,943 @@
+<?php
+/**
+ * Jabber class
+ *
+ * @version $Id$
+ * @copyright 2006 Flyspray.org
+ * @notes: This lib has been created due to the lack of any good and modern jabber class out there
+ * @author: Florian Schmitz (floele)
+ */
+
+define('SECURITY_NONE', 0);
+define('SECURITY_SSL', 1);
+define('SECURITY_TLS', 2);
+
+class Jabber
+{
+ public $connection = null;
+ public $session = array();
+ public $resource = 'class.jabber2.php';
+ public $log = array();
+ public $log_enabled = true;
+ public $timeout = 10;
+ public $user = '';
+ public $password = '';
+ public $server = '';
+ public $features = array();
+
+ public function __construct($login, $password, $security = SECURITY_NONE, $port = 5222, $host = '')
+ {
+ // Can we use Jabber at all?
+ // Note: Maybe replace with SimpleXML in the future
+ if (!extension_loaded('xml')) {
+ $this->log('Error: No XML functions available, Jabber functions can not operate.');
+ return false;
+ }
+
+ //bug in php 5.2.1 renders this stuff more or less useless.
+ if ((version_compare(phpversion(), '5.2.1', '>=') && version_compare(phpversion(), '5.2.3RC2', '<')) && $security != SECURITY_NONE) {
+ $this->log('Error: PHP ' . phpversion() . ' + SSL is incompatible with jabber, see http://bugs.php.net/41236');
+ return false;
+ }
+
+ if (!Jabber::check_jid($login)) {
+ $this->log('Error: Jabber ID is not valid: ' . $login);
+ return false;
+ }
+
+ // Extract data from user@server.org
+ list($username, $server) = explode('@', $login);
+
+ // Decide whether or not to use encryption
+ if ($security == SECURITY_SSL && !Jabber::can_use_ssl()) {
+ $this->log('Warning: SSL encryption is not supported (openssl required). Falling back to no encryption.');
+ $security = SECURITY_NONE;
+ }
+ if ($security == SECURITY_TLS && !Jabber::can_use_tls()) {
+ $this->log('Warning: TLS encryption is not supported (openssl and stream_socket_enable_crypto() required). Falling back to no encryption.');
+ $security = SECURITY_NONE;
+ }
+
+ $this->session['security'] = $security;
+ $this->server = $server;
+ $this->user = $username;
+ $this->password = $password;
+
+ if ($this->open_socket( ($host != '') ? $host : $server, $port, $security == SECURITY_SSL)) {
+ $this->send("<?xml version='1.0' encoding='UTF-8' ?" . ">\n");
+ $this->send("<stream:stream to='{$server}' xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' version='1.0'>\n");
+ } else {
+ return false;
+ }
+ // Now we listen what the server has to say...and give appropriate responses
+ $this->response($this->listen());
+ }
+
+ /**
+ * Sets the resource which is used. No validation is done here, only escaping.
+ * @param string $$name
+ * @access public
+ */
+ public function setResource($name)
+ {
+ $this->resource = $name;
+ }
+
+ /**
+ * Send data to the Jabber server
+ * @param string $xml
+ * @access public
+ * @return bool
+ */
+ public function send($xml)
+ {
+ if ($this->connected()) {
+ $xml = trim($xml);
+ $this->log('SEND: '. $xml);
+ return fwrite($this->connection, $xml);
+ } else {
+ $this->log('Error: Could not send, connection lost (flood?).');
+ return false;
+ }
+ }
+
+ /**
+ * OpenSocket
+ * @param string $server host to connect to
+ * @param int $port port number
+ * @param bool $ssl use ssl or not
+ * @access public
+ * @return bool
+ */
+ public function open_socket($server, $port, $ssl = false)
+ {
+ if (function_exists("dns_get_record")) {
+ $record = dns_get_record("_xmpp-client._tcp.$server", DNS_SRV);
+ if (!empty($record)) {
+ $server = $record[0]['target'];
+ }
+ } else {
+ $this->log('Warning: dns_get_record function not found. gtalk will not work.');
+ }
+
+ $server = $ssl ? 'ssl://' . $server : $server;
+
+ if ($ssl) {
+ $this->session['ssl'] = true;
+ }
+
+ if ($this->connection = @fsockopen($server, $port, $errorno, $errorstr, $this->timeout)) {
+ socket_set_blocking($this->connection, 0);
+ socket_set_timeout($this->connection, 60);
+
+ return true;
+ }
+ // Apparently an error occured...
+ $this->log('Error: ' . $errorstr);
+ return false;
+ }
+
+ public function log($msg)
+ {
+ if ($this->log_enabled) {
+ $this->log[] = $msg;
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * Listens to the connection until it gets data or the timeout is reached.
+ * Thus, it should only be called if data is expected to be received.
+ * @access public
+ * @return mixed either false for timeout or an array with the received data
+ */
+ public function listen($timeout = 10, $wait = false)
+ {
+ if (!$this->connected()) {
+ return false;
+ }
+
+ // Wait for a response until timeout is reached
+ $start = time();
+ $data = '';
+
+ do {
+ $read = trim(fread($this->connection, 4096));
+ $data .= $read;
+ } while (time() <= $start + $timeout && !feof($this->connection) && ($wait || $data == '' || $read != ''
+ || (substr(rtrim($data), -1) != '>')));
+
+ if ($data != '') {
+ $this->log('RECV: '. $data);
+ return Jabber::xmlize($data);
+ } else {
+ $this->log('Timeout, no response from server.');
+ return false;
+ }
+ }
+
+ /**
+ * Initiates login (using data from contructor)
+ * @access public
+ * @return bool
+ */
+ public function login()
+ {
+ if (!count($this->features)) {
+ $this->log('Error: No feature information from server available.');
+ return false;
+ }
+
+ return $this->response($this->features);
+ }
+
+ /**
+ * Initiates account registration (based on data used for contructor)
+ * @access public
+ * @return bool
+ */
+ public function register()
+ {
+ if (!isset($this->session['id']) || isset($this->session['jid'])) {
+ $this->log('Error: Cannot initiate registration.');
+ return false;
+ }
+
+ $this->send("<iq type='get' id='reg_1'>
+ <query xmlns='jabber:iq:register'/>
+ </iq>");
+ return $this->response($this->listen());
+ }
+
+ /**
+ * Initiates account un-registration (based on data used for contructor)
+ * @access public
+ * @return bool
+ */
+ public function unregister()
+ {
+ if (!isset($this->session['id']) || !isset($this->session['jid'])) {
+ $this->log('Error: Cannot initiate un-registration.');
+ return false;
+ }
+
+ $this->send("<iq type='set' from='" . Jabber::jspecialchars($this->session['jid']) . "' id='unreg_1'>
+ <query xmlns='jabber:iq:register'>
+ <remove/>
+ </query>
+ </iq>");
+ return $this->response($this->listen(2)); // maybe we don't even get a response
+ }
+
+ /**
+ * Sets account presence. No additional info required (default is "online" status)
+ * @param $type dnd, away, chat, xa or nothing
+ * @param $message
+ * @param $unavailable set this to true if you want to become unavailable
+ * @access public
+ * @return bool
+ */
+ public function presence($type = '', $message = '', $unavailable = false)
+ {
+ if (!isset($this->session['jid'])) {
+ $this->log('Error: Cannot set presence at this point.');
+ return false;
+ }
+
+ if (in_array($type, array('dnd', 'away', 'chat', 'xa'))) {
+ $type = '<show>'. $type .'</show>';
+ } else {
+ $type = '';
+ }
+
+ $unavailable = ($unavailable) ? " type='unavailable'" : '';
+ $message = ($message) ? '<status>' . Jabber::jspecialchars($message) .'</status>' : '';
+
+ $this->session['sent_presence'] = !$unavailable;
+
+ return $this->send("<presence$unavailable>" .
+ $type .
+ $message .
+ '</presence>');
+ }
+
+ /**
+ * This handles all the different XML elements
+ * @param array $xml
+ * @access public
+ * @return bool
+ */
+ public function response($xml)
+ {
+ if (!is_array($xml) || !count($xml)) {
+ return false;
+ }
+
+ // did we get multiple elements? do one after another
+ // array('message' => ..., 'presence' => ...)
+ if (count($xml) > 1) {
+ foreach ($xml as $key => $value) {
+ $this->response(array($key => $value));
+ }
+ return;
+ } else
+ // or even multiple elements of the same type?
+ // array('message' => array(0 => ..., 1 => ...))
+ if (count(reset($xml)) > 1) {
+ foreach (reset($xml) as $value) {
+ $this->response(array(key($xml) => array(0 => $value)));
+ }
+ return;
+ }
+
+ switch (key($xml)) {
+ case 'stream:stream':
+ // Connection initialised (or after authentication). Not much to do here...
+ if (isset($xml['stream:stream'][0]['#']['stream:features'])) {
+ // we already got all info we need
+ $this->features = $xml['stream:stream'][0]['#'];
+ } else {
+ $this->features = $this->listen();
+ }
+ $second_time = isset($this->session['id']);
+ $this->session['id'] = $xml['stream:stream'][0]['@']['id'];
+ if ($second_time) {
+ // If we are here for the second time after TLS, we need to continue logging in
+ $this->login();
+ return;
+ }
+
+ // go on with authentication?
+ if (isset($this->features['stream:features'][0]['#']['bind'])) {
+ return $this->response($this->features);
+ }
+ break;
+
+ case 'stream:features':
+ // Resource binding after successful authentication
+ if (isset($this->session['authenticated'])) {
+ // session required?
+ $this->session['sess_required'] = isset($xml['stream:features'][0]['#']['session']);
+
+ $this->send("<iq type='set' id='bind_1'>
+ <bind xmlns='urn:ietf:params:xml:ns:xmpp-bind'>
+ <resource>" . Jabber::jspecialchars($this->resource) . "</resource>
+ </bind>
+ </iq>");
+ return $this->response($this->listen());
+ }
+ // Let's use TLS if SSL is not enabled and we can actually use it
+ if ($this->session['security'] == SECURITY_TLS && isset($xml['stream:features'][0]['#']['starttls'])) {
+ $this->log('Switching to TLS.');
+ $this->send("<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>\n");
+ return $this->response($this->listen());
+ }
+ // Does the server support SASL authentication?
+
+ // I hope so, because we do (and no other method).
+ if (isset($xml['stream:features'][0]['#']['mechanisms'][0]['@']['xmlns']) &&
+ $xml['stream:features'][0]['#']['mechanisms'][0]['@']['xmlns'] == 'urn:ietf:params:xml:ns:xmpp-sasl') {
+ // Now decide on method
+ $methods = array();
+ foreach ($xml['stream:features'][0]['#']['mechanisms'][0]['#']['mechanism'] as $value) {
+ $methods[] = $value['#'];
+ }
+
+ // we prefer this one
+ if (in_array('DIGEST-MD5', $methods)) {
+ $this->send("<auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl' mechanism='DIGEST-MD5'/>");
+ // we don't want to use this (neither does the server usually) if no encryption is in place
+ # http://www.xmpp.org/extensions/attic/jep-0078-1.7.html
+ # The plaintext mechanism SHOULD NOT be used unless the underlying stream is encrypted (using SSL or TLS)
+ # and the client has verified that the server certificate is signed by a trusted certificate authority.
+ } else if (in_array('PLAIN', $methods) && (isset($this->session['ssl']) || isset($this->session['tls']))) {
+ $this->send("<auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl' mechanism='PLAIN'>"
+ . base64_encode(chr(0) . $this->user . '@' . $this->server . chr(0) . $this->password) .
+ "</auth>");
+ } else if (in_array('ANONYMOUS', $methods)) {
+ $this->send("<auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl' mechanism='ANONYMOUS'/>");
+ // not good...
+ } else {
+ $this->log('Error: No authentication method supported.');
+ $this->disconnect();
+ return false;
+ }
+ return $this->response($this->listen());
+
+ } else {
+ // ok, this is it. bye.
+ $this->log('Error: Server does not offer SASL authentication.');
+ $this->disconnect();
+ return false;
+ }
+ break;
+
+ case 'challenge':
+ // continue with authentication...a challenge literally -_-
+ $decoded = base64_decode($xml['challenge'][0]['#']);
+ $decoded = Jabber::parse_data($decoded);
+ if (!isset($decoded['digest-uri'])) {
+ $decoded['digest-uri'] = 'xmpp/'. $this->server;
+ }
+
+ // better generate a cnonce, maybe it's needed
+
+ $decoded['cnonce'] = base64_encode(md5(uniqid(mt_rand(), true)));
+
+ // second challenge?
+ if (isset($decoded['rspauth'])) {
+ $this->send("<response xmlns='urn:ietf:params:xml:ns:xmpp-sasl'/>");
+ } else {
+ $response = array('username' => $this->user,
+ 'response' => $this->encrypt_password(array_merge($decoded, array('nc' => '00000001'))),
+ 'charset' => 'utf-8',
+ 'nc' => '00000001',
+ 'qop' => 'auth'); // the only option we support anyway
+
+ foreach (array('nonce', 'digest-uri', 'realm', 'cnonce') as $key) {
+ if (isset($decoded[$key])) {
+ $response[$key] = $decoded[$key];
+ }
+ }
+
+ $this->send("<response xmlns='urn:ietf:params:xml:ns:xmpp-sasl'>" .
+ base64_encode(Jabber::implode_data($response))
+ . "</response>");
+ }
+
+ return $this->response($this->listen());
+
+ case 'failure':
+ $this->log('Error: Server sent "failure".');
+ $this->disconnect();
+ return false;
+
+ case 'proceed':
+ // continue switching to TLS
+ $meta = stream_get_meta_data($this->connection);
+ socket_set_blocking($this->connection, 1);
+ if (!stream_socket_enable_crypto($this->connection, true, STREAM_CRYPTO_METHOD_TLS_CLIENT)) {
+ $this->log('Error: TLS mode change failed.');
+ return false;
+ }
+ socket_set_blocking($this->connection, $meta['blocked']);
+ $this->session['tls'] = true;
+ // new stream
+ $this->send("<?xml version='1.0' encoding='UTF-8' ?" . ">\n");
+ $this->send("<stream:stream to='{$this->server}' xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' version='1.0'>\n");
+
+ return $this->response($this->listen());
+
+ case 'success':
+ // Yay, authentication successful.
+ $this->send("<stream:stream to='{$this->server}' xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' version='1.0'>\n");
+ $this->session['authenticated'] = true;
+ return $this->response($this->listen()); // we have to wait for another response
+
+ case 'iq':
+ // we are not interested in IQs we did not expect
+ if (!isset($xml['iq'][0]['@']['id'])) {
+ return false;
+ }
+ // multiple possibilities here
+ switch ($xml['iq'][0]['@']['id'])
+ {
+ case 'bind_1':
+ $this->session['jid'] = $xml['iq'][0]['#']['bind'][0]['#']['jid'][0]['#'];
+ // and (maybe) yet another request to be able to send messages *finally*
+ if ($this->session['sess_required']) {
+ $this->send("<iq to='{$this->server}'
+ type='set'
+ id='sess_1'>
+ <session xmlns='urn:ietf:params:xml:ns:xmpp-session'/>
+ </iq>");
+ return $this->response($this->listen());
+ }
+ return true;
+
+ case 'sess_1':
+ return true;
+
+ case 'reg_1':
+ $this->send("<iq type='set' id='reg_2'>
+ <query xmlns='jabber:iq:register'>
+ <username>" . Jabber::jspecialchars($this->user) . "</username>
+ <password>" . Jabber::jspecialchars($this->password) . "</password>
+ </query>
+ </iq>");
+ return $this->response($this->listen());
+
+ case 'reg_2':
+ // registration end
+ if (isset($xml['iq'][0]['#']['error'])) {
+ $this->log('Warning: Registration failed.');
+ return false;
+ }
+ return true;
+
+ case 'unreg_1':
+ return true;
+
+ default:
+ $this->log('Notice: Received unexpected IQ.');
+ return false;
+ }
+ break;
+
+ case 'message':
+ // we are only interested in content...
+ if (!isset($xml['message'][0]['#']['body'])) {
+ return false;
+ }
+
+ $message['body'] = $xml['message'][0]['#']['body'][0]['#'];
+ $message['from'] = $xml['message'][0]['@']['from'];
+ if (isset($xml['message'][0]['#']['subject'])) {
+ $message['subject'] = $xml['message'][0]['#']['subject'][0]['#'];
+ }
+ $this->session['messages'][] = $message;
+ break;
+
+ default:
+ // hm...don't know this response
+ $this->log('Notice: Unknown server response (' . key($xml) . ')');
+ return false;
+ }
+ }
+
+ public function send_message($to, $text, $subject = '', $type = 'normal')
+ {
+ if (!isset($this->session['jid'])) {
+ return false;
+ }
+
+ if (!in_array($type, array('chat', 'normal', 'error', 'groupchat', 'headline'))) {
+ $type = 'normal';
+ }
+
+ return $this->send("<message from='" . Jabber::jspecialchars($this->session['jid']) . "'
+ to='" . Jabber::jspecialchars($to) . "'
+ type='$type'
+ id='" . uniqid('msg') . "'>
+ <subject>" . Jabber::jspecialchars($subject) . "</subject>
+ <body>" . Jabber::jspecialchars($text) . "</body>
+ </message>");
+ }
+
+ public function get_messages($waitfor = 3)
+ {
+ if (!isset($this->session['sent_presence']) || !$this->session['sent_presence']) {
+ $this->presence();
+ }
+
+ if ($waitfor > 0) {
+ $this->response($this->listen($waitfor, $wait = true)); // let's see if any messages fly in
+ }
+
+ return isset($this->session['messages']) ? $this->session['messages'] : array();
+ }
+
+ public function connected()
+ {
+ return is_resource($this->connection) && !feof($this->connection);
+ }
+
+ public function disconnect()
+ {
+ if ($this->connected()) {
+ // disconnect gracefully
+ if (isset($this->session['sent_presence'])) {
+ $this->presence('', 'offline', $unavailable = true);
+ }
+ $this->send('</stream:stream>');
+ $this->session = array();
+ return fclose($this->connection);
+ }
+ return false;
+ }
+
+ public static function can_use_ssl()
+ {
+ return extension_loaded('openssl');
+ }
+
+ public static function can_use_tls()
+ {
+ return Jabber::can_use_ssl() && function_exists('stream_socket_enable_crypto');
+ }
+
+ /**
+ * Encrypts a password as in RFC 2831
+ * @param array $data Needs data from the client-server connection
+ * @access public
+ * @return string
+ */
+ public function encrypt_password($data)
+ {
+ // let's me think about <challenge> again...
+ foreach (array('realm', 'cnonce', 'digest-uri') as $key) {
+ if (!isset($data[$key])) {
+ $data[$key] = '';
+ }
+ }
+
+ $pack = md5($this->user . ':' . $data['realm'] . ':' . $this->password);
+ if (isset($data['authzid'])) {
+ $a1 = pack('H32', $pack) . sprintf(':%s:%s:%s', $data['nonce'], $data['cnonce'], $data['authzid']);
+ } else {
+ $a1 = pack('H32', $pack) . sprintf(':%s:%s', $data['nonce'], $data['cnonce']);
+ }
+
+ // should be: qop = auth
+ $a2 = 'AUTHENTICATE:'. $data['digest-uri'];
+
+ return md5(sprintf('%s:%s:%s:%s:%s:%s', md5($a1), $data['nonce'], $data['nc'], $data['cnonce'], $data['qop'], md5($a2)));
+ }
+
+ /**
+ * parse_data like a="b",c="d",...
+ * @param string $data
+ * @access public
+ * @return array a => b ...
+ */
+ public function parse_data($data)
+ {
+ // super basic, but should suffice
+ $data = explode(',', $data);
+ $pairs = array();
+ foreach ($data as $pair) {
+ $dd = strpos($pair, '=');
+ if ($dd) {
+ $pairs[substr($pair, 0, $dd)] = trim(substr($pair, $dd + 1), '"');
+ }
+ }
+ return $pairs;
+ }
+
+ /**
+ * opposite of Jabber::parse_data()
+ * @param array $data
+ * @access public
+ * @return string
+ */
+ public function implode_data($data)
+ {
+ $return = array();
+ foreach ($data as $key => $value) {
+ $return[] = $key . '="' . $value . '"';
+ }
+ return implode(',', $return);
+ }
+
+ /**
+ * Checks whether or not a Jabber ID is valid (FS#1131)
+ * @param string $jid
+ * @access public
+ * @return string
+ */
+ public function check_jid($jid)
+ {
+ $i = strpos($jid, '@');
+ if ($i === false) {
+ return false;
+ }
+
+ $username = substr($jid, 0, $i);
+ $realm = substr($jid, $i + 1);
+
+ if (strlen($username) == 0 || strlen($realm) < 3) {
+ return false;
+ }
+
+ $arr = explode('.', $realm);
+
+ if (count($arr) == 0) {
+ return false;
+ }
+
+ foreach ($arr as $part)
+ {
+ if (substr($part, 0, 1) == '-' || substr($part, -1, 1) == '-') {
+ return false;
+ }
+
+ if (preg_match("@^[a-zA-Z0-9-.]+$@", $part) == false) {
+ return false;
+ }
+ }
+
+ $b = array(array(0, 127), array(192, 223), array(224, 239),
+ array(240, 247), array(248, 251), array(252, 253));
+
+ // Prohibited Characters RFC3454 + RFC3920
+ $p = array(
+ // Table C.1.1
+ array(0x0020, 0x0020), // SPACE
+ // Table C.1.2
+ array(0x00A0, 0x00A0), // NO-BREAK SPACE
+ array(0x1680, 0x1680), // OGHAM SPACE MARK
+ array(0x2000, 0x2001), // EN QUAD
+ array(0x2001, 0x2001), // EM QUAD
+ array(0x2002, 0x2002), // EN SPACE
+ array(0x2003, 0x2003), // EM SPACE
+ array(0x2004, 0x2004), // THREE-PER-EM SPACE
+ array(0x2005, 0x2005), // FOUR-PER-EM SPACE
+ array(0x2006, 0x2006), // SIX-PER-EM SPACE
+ array(0x2007, 0x2007), // FIGURE SPACE
+ array(0x2008, 0x2008), // PUNCTUATION SPACE
+ array(0x2009, 0x2009), // THIN SPACE
+ array(0x200A, 0x200A), // HAIR SPACE
+ array(0x200B, 0x200B), // ZERO WIDTH SPACE
+ array(0x202F, 0x202F), // NARROW NO-BREAK SPACE
+ array(0x205F, 0x205F), // MEDIUM MATHEMATICAL SPACE
+ array(0x3000, 0x3000), // IDEOGRAPHIC SPACE
+ // Table C.2.1
+ array(0x0000, 0x001F), // [CONTROL CHARACTERS]
+ array(0x007F, 0x007F), // DELETE
+ // Table C.2.2
+ array(0x0080, 0x009F), // [CONTROL CHARACTERS]
+ array(0x06DD, 0x06DD), // ARABIC END OF AYAH
+ array(0x070F, 0x070F), // SYRIAC ABBREVIATION MARK
+ array(0x180E, 0x180E), // MONGOLIAN VOWEL SEPARATOR
+ array(0x200C, 0x200C), // ZERO WIDTH NON-JOINER
+ array(0x200D, 0x200D), // ZERO WIDTH JOINER
+ array(0x2028, 0x2028), // LINE SEPARATOR
+ array(0x2029, 0x2029), // PARAGRAPH SEPARATOR
+ array(0x2060, 0x2060), // WORD JOINER
+ array(0x2061, 0x2061), // FUNCTION APPLICATION
+ array(0x2062, 0x2062), // INVISIBLE TIMES
+ array(0x2063, 0x2063), // INVISIBLE SEPARATOR
+ array(0x206A, 0x206F), // [CONTROL CHARACTERS]
+ array(0xFEFF, 0xFEFF), // ZERO WIDTH NO-BREAK SPACE
+ array(0xFFF9, 0xFFFC), // [CONTROL CHARACTERS]
+ array(0x1D173, 0x1D17A), // [MUSICAL CONTROL CHARACTERS]
+ // Table C.3
+ array(0xE000, 0xF8FF), // [PRIVATE USE, PLANE 0]
+ array(0xF0000, 0xFFFFD), // [PRIVATE USE, PLANE 15]
+ array(0x100000, 0x10FFFD), // [PRIVATE USE, PLANE 16]
+ // Table C.4
+ array(0xFDD0, 0xFDEF), // [NONCHARACTER CODE POINTS]
+ array(0xFFFE, 0xFFFF), // [NONCHARACTER CODE POINTS]
+ array(0x1FFFE, 0x1FFFF), // [NONCHARACTER CODE POINTS]
+ array(0x2FFFE, 0x2FFFF), // [NONCHARACTER CODE POINTS]
+ array(0x3FFFE, 0x3FFFF), // [NONCHARACTER CODE POINTS]
+ array(0x4FFFE, 0x4FFFF), // [NONCHARACTER CODE POINTS]
+ array(0x5FFFE, 0x5FFFF), // [NONCHARACTER CODE POINTS]
+ array(0x6FFFE, 0x6FFFF), // [NONCHARACTER CODE POINTS]
+ array(0x7FFFE, 0x7FFFF), // [NONCHARACTER CODE POINTS]
+ array(0x8FFFE, 0x8FFFF), // [NONCHARACTER CODE POINTS]
+ array(0x9FFFE, 0x9FFFF), // [NONCHARACTER CODE POINTS]
+ array(0xAFFFE, 0xAFFFF), // [NONCHARACTER CODE POINTS]
+ array(0xBFFFE, 0xBFFFF), // [NONCHARACTER CODE POINTS]
+ array(0xCFFFE, 0xCFFFF), // [NONCHARACTER CODE POINTS]
+ array(0xDFFFE, 0xDFFFF), // [NONCHARACTER CODE POINTS]
+ array(0xEFFFE, 0xEFFFF), // [NONCHARACTER CODE POINTS]
+ array(0xFFFFE, 0xFFFFF), // [NONCHARACTER CODE POINTS]
+ array(0x10FFFE, 0x10FFFF), // [NONCHARACTER CODE POINTS]
+ // Table C.5
+ array(0xD800, 0xDFFF), // [SURROGATE CODES]
+ // Table C.6
+ array(0xFFF9, 0xFFF9), // INTERLINEAR ANNOTATION ANCHOR
+ array(0xFFFA, 0xFFFA), // INTERLINEAR ANNOTATION SEPARATOR
+ array(0xFFFB, 0xFFFB), // INTERLINEAR ANNOTATION TERMINATOR
+ array(0xFFFC, 0xFFFC), // OBJECT REPLACEMENT CHARACTER
+ array(0xFFFD, 0xFFFD), // REPLACEMENT CHARACTER
+ // Table C.7
+ array(0x2FF0, 0x2FFB), // [IDEOGRAPHIC DESCRIPTION CHARACTERS]
+ // Table C.8
+ array(0x0340, 0x0340), // COMBINING GRAVE TONE MARK
+ array(0x0341, 0x0341), // COMBINING ACUTE TONE MARK
+ array(0x200E, 0x200E), // LEFT-TO-RIGHT MARK
+ array(0x200F, 0x200F), // RIGHT-TO-LEFT MARK
+ array(0x202A, 0x202A), // LEFT-TO-RIGHT EMBEDDING
+ array(0x202B, 0x202B), // RIGHT-TO-LEFT EMBEDDING
+ array(0x202C, 0x202C), // POP DIRECTIONAL FORMATTING
+ array(0x202D, 0x202D), // LEFT-TO-RIGHT OVERRIDE
+ array(0x202E, 0x202E), // RIGHT-TO-LEFT OVERRIDE
+ array(0x206A, 0x206A), // INHIBIT SYMMETRIC SWAPPING
+ array(0x206B, 0x206B), // ACTIVATE SYMMETRIC SWAPPING
+ array(0x206C, 0x206C), // INHIBIT ARABIC FORM SHAPING
+ array(0x206D, 0x206D), // ACTIVATE ARABIC FORM SHAPING
+ array(0x206E, 0x206E), // NATIONAL DIGIT SHAPES
+ array(0x206F, 0x206F), // NOMINAL DIGIT SHAPES
+ // Table C.9
+ array(0xE0001, 0xE0001), // LANGUAGE TAG
+ array(0xE0020, 0xE007F), // [TAGGING CHARACTERS]
+ // RFC3920
+ array(0x22, 0x22), // "
+ array(0x26, 0x26), // &
+ array(0x27, 0x27), // '
+ array(0x2F, 0x2F), // /
+ array(0x3A, 0x3A), // :
+ array(0x3C, 0x3C), // <
+ array(0x3E, 0x3E), // >
+ array(0x40, 0x40) // @
+ );
+
+ $pos = 0;
+ $result = true;
+
+ while ($pos < strlen($username))
+ {
+ $len = 0;
+ $uni = 0;
+ for ($i = 0; $i <= 5; $i++)
+ {
+ if (ord($username[$pos]) >= $b[$i][0] && ord($username[$pos]) <= $b[$i][1])
+ {
+ $len = $i + 1;
+
+ $uni = (ord($username[$pos]) - $b[$i][0]) * pow(2, $i * 6);
+
+ for ($k = 1; $k < $len; $k++) {
+ $uni += (ord($username[$pos + $k]) - 128) * pow(2, ($i - $k) * 6);
+ }
+
+ break;
+ }
+ }
+
+ if ($len == 0) {
+ return false;
+ }
+
+ foreach ($p as $pval)
+ {
+ if ($uni >= $pval[0] && $uni <= $pval[1]) {
+ $result = false;
+ break 2;
+ }
+ }
+
+ $pos = $pos + $len;
+ }
+
+ return $result;
+ }
+
+ public static function jspecialchars($data)
+ {
+ return htmlspecialchars($data, ENT_QUOTES, 'utf-8');
+ }
+
+ // ======================================================================
+ // Third party code, taken from old jabber lib (the only usable code left)
+ // ======================================================================
+
+ // xmlize()
+ // (c) Hans Anderson / http://www.hansanderson.com/php/xml/
+
+ public static function xmlize($data, $WHITE=1, $encoding='UTF-8') {
+
+ $data = trim($data);
+ if (substr($data, 0, 5) != '<?xml') {
+ $data = '<root>'. $data . '</root>'; // mod
+ }
+ $vals = $array = array();
+ $parser = xml_parser_create($encoding);
+ xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0);
+ xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, $WHITE);
+ xml_parse_into_struct($parser, $data, $vals);
+ xml_parser_free($parser);
+
+ $i = 0;
+
+ $tagname = $vals[$i]['tag'];
+ if ( isset ($vals[$i]['attributes'] ) )
+ {
+ $array[$tagname][0]['@'] = $vals[$i]['attributes']; // mod
+ } else {
+ $array[$tagname][0]['@'] = array(); // mod
+ }
+
+ $array[$tagname][0]["#"] = Jabber::_xml_depth($vals, $i); // mod
+ if (substr($data, 0, 5) != '<?xml') {
+ $array = $array['root'][0]['#']; // mod
+ }
+
+ return $array;
+ }
+
+
+
+ // _xml_depth()
+ // (c) Hans Anderson / http://www.hansanderson.com/php/xml/
+
+ public static function _xml_depth($vals, &$i) {
+ $children = array();
+
+ if ( isset($vals[$i]['value']) )
+ {
+ array_push($children, $vals[$i]['value']);
+ }
+
+ while (++$i < count($vals)) {
+
+ switch ($vals[$i]['type']) {
+
+ case 'open':
+
+ if ( isset ( $vals[$i]['tag'] ) )
+ {
+ $tagname = $vals[$i]['tag'];
+ } else {
+ $tagname = '';
+ }
+
+ if ( isset ( $children[$tagname] ) )
+ {
+ $size = sizeof($children[$tagname]);
+ } else {
+ $size = 0;
+ }
+
+ if ( isset ( $vals[$i]['attributes'] ) ) {
+ $children[$tagname][$size]['@'] = $vals[$i]["attributes"];
+
+ }
+
+ $children[$tagname][$size]['#'] = Jabber::_xml_depth($vals, $i);
+
+ break;
+
+
+ case 'cdata':
+ array_push($children, $vals[$i]['value']);
+ break;
+
+ case 'complete':
+ $tagname = $vals[$i]['tag'];
+
+ if( isset ($children[$tagname]) )
+ {
+ $size = sizeof($children[$tagname]);
+ } else {
+ $size = 0;
+ }
+
+ if( isset ( $vals[$i]['value'] ) )
+ {
+ $children[$tagname][$size]["#"] = $vals[$i]['value'];
+ } else {
+ $children[$tagname][$size]["#"] = array();
+ }
+
+ if ( isset ($vals[$i]['attributes']) ) {
+ $children[$tagname][$size]['@']
+ = $vals[$i]['attributes'];
+ }
+
+ break;
+
+ case 'close':
+ return $children;
+ break;
+ }
+ }
+
+ return $children;
+ }
+}
+