| 1 | <?php
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| 2 | /**
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| 3 | *
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| 4 | * @package phpBB3
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| 5 | * @version $Id$
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| 6 | * @copyright (c) 2007 phpBB Group
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| 7 | * @license http://opensource.org/licenses/gpl-license.php GNU Public License
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| 8 | *
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| 9 | */
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| 10 |
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| 11 | /**
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| 12 | * @ignore
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| 13 | */
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| 14 | if (!defined('IN_PHPBB'))
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| 15 | {
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| 16 | exit;
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| 17 | }
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| 18 |
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| 19 | /**
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| 20 | *
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| 21 | * Jabber class from Flyspray project
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| 22 | *
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| 23 | * @version class.jabber2.php 1595 2008-09-19 (0.9.9)
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| 24 | * @copyright 2006 Flyspray.org
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| 25 | * @author Florian Schmitz (floele)
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| 26 | *
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| 27 | * Only slightly modified by Acyd Burn
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| 28 | *
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| 29 | * @package phpBB3
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| 30 | */
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| 31 | class jabber
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| 32 | {
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| 33 | var $connection = null;
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| 34 | var $session = array();
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| 35 | var $timeout = 10;
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| 36 |
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| 37 | var $server;
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| 38 | var $connect_server;
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| 39 | var $port;
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| 40 | var $username;
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| 41 | var $password;
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| 42 | var $use_ssl;
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| 43 | var $resource = 'functions_jabber.phpbb.php';
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| 44 |
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| 45 | var $enable_logging;
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| 46 | var $log_array;
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| 47 |
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| 48 | var $features = array();
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| 49 |
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| 50 | /**
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| 51 | */
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| 52 | function jabber($server, $port, $username, $password, $use_ssl = false)
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| 53 | {
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| 54 | $this->connect_server = ($server) ? $server : 'localhost';
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| 55 | $this->port = ($port) ? $port : 5222;
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| 56 |
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| 57 | // Get the server and the username
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| 58 | if (strpos($username, '@') === false)
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| 59 | {
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| 60 | $this->server = $this->connect_server;
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| 61 | $this->username = $username;
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| 62 | }
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| 63 | else
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| 64 | {
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| 65 | $jid = explode('@', $username, 2);
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| 66 |
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| 67 | $this->username = $jid[0];
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| 68 | $this->server = $jid[1];
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| 69 | }
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| 70 |
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| 71 | $this->password = $password;
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| 72 | $this->use_ssl = ($use_ssl && $this->can_use_ssl()) ? true : false;
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| 73 |
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| 74 | // Change port if we use SSL
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| 75 | if ($this->port == 5222 && $this->use_ssl)
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| 76 | {
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| 77 | $this->port = 5223;
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| 78 | }
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| 79 |
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| 80 | $this->enable_logging = true;
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| 81 | $this->log_array = array();
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| 82 | }
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| 83 |
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| 84 | /**
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| 85 | * Able to use the SSL functionality?
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| 86 | */
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| 87 | function can_use_ssl()
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| 88 | {
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| 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)
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| 90 | return ((version_compare(PHP_VERSION, '5.2.1', '<') || version_compare(PHP_VERSION, '5.2.3RC2', '>=')) && @extension_loaded('openssl')) ? true : false;
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| 91 | }
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| 92 |
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| 93 | /**
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| 94 | * Able to use TLS?
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| 95 | */
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| 96 | function can_use_tls()
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| 97 | {
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| 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'))
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| 99 | {
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| 100 | return false;
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| 101 | }
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| 102 |
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| 103 | /**
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| 104 | * Make sure the encryption stream is supported
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| 105 | * Also seem to work without the crypto stream if correctly compiled
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| 106 |
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| 107 | $streams = stream_get_wrappers();
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| 108 |
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| 109 | if (!in_array('streams.crypto', $streams))
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| 110 | {
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| 111 | return false;
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| 112 | }
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| 113 | */
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| 114 |
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| 115 | return true;
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| 116 | }
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| 117 |
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| 118 | /**
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| 119 | * Sets the resource which is used. No validation is done here, only escaping.
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| 120 | * @param string $name
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| 121 | * @access public
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| 122 | */
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| 123 | function set_resource($name)
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| 124 | {
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| 125 | $this->resource = $name;
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| 126 | }
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| 127 |
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| 128 | /**
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| 129 | * Connect
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| 130 | */
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| 131 | function connect()
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| 132 | {
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| 133 | /* if (!$this->check_jid($this->username . '@' . $this->server))
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| 134 | {
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| 135 | $this->add_to_log('Error: Jabber ID is not valid: ' . $this->username . '@' . $this->server);
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| 136 | return false;
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| 137 | }*/
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| 138 |
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| 139 | $this->session['ssl'] = $this->use_ssl;
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| 140 |
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| 141 | if ($this->open_socket($this->connect_server, $this->port, $this->use_ssl))
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| 142 | {
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| 143 | $this->send("<?xml version='1.0' encoding='UTF-8' ?" . ">\n");
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| 144 | $this->send("<stream:stream to='{$this->server}' xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' version='1.0'>\n");
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| 145 | }
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| 146 | else
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| 147 | {
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| 148 | $this->add_to_log('Error: connect() #2');
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| 149 | return false;
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| 150 | }
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| 151 |
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| 152 | // Now we listen what the server has to say...and give appropriate responses
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| 153 | $this->response($this->listen());
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| 154 | return true;
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| 155 | }
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| 156 |
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| 157 | /**
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| 158 | * Disconnect
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| 159 | */
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| 160 | function disconnect()
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| 161 | {
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| 162 | if ($this->connected())
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| 163 | {
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| 164 | // disconnect gracefully
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| 165 | if (isset($this->session['sent_presence']))
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| 166 | {
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| 167 | $this->send_presence('offline', '', true);
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| 168 | }
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| 169 |
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| 170 | $this->send('</stream:stream>');
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| 171 | $this->session = array();
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| 172 | return fclose($this->connection);
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| 173 | }
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| 174 |
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| 175 | return false;
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| 176 | }
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| 177 |
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| 178 | /**
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| 179 | * Connected?
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| 180 | */
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| 181 | function connected()
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| 182 | {
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| 183 | return (is_resource($this->connection) && !feof($this->connection)) ? true : false;
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| 184 | }
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| 185 |
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| 186 |
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| 187 | /**
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| 188 | * Initiates login (using data from contructor, after calling connect())
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| 189 | * @access public
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| 190 | * @return bool
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| 191 | */
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| 192 | function login()
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| 193 | {
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| 194 | if (!sizeof($this->features))
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| 195 | {
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| 196 | $this->add_to_log('Error: No feature information from server available.');
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| 197 | return false;
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| 198 | }
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| 199 |
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| 200 | return $this->response($this->features);
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| 201 | }
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| 202 |
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| 203 | /**
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| 204 | * Send data to the Jabber server
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| 205 | * @param string $xml
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| 206 | * @access public
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| 207 | * @return bool
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| 208 | */
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| 209 | function send($xml)
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| 210 | {
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| 211 | if ($this->connected())
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| 212 | {
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| 213 | $xml = trim($xml);
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| 214 | $this->add_to_log('SEND: '. $xml);
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| 215 | return fwrite($this->connection, $xml);
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| 216 | }
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| 217 | else
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| 218 | {
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| 219 | $this->add_to_log('Error: Could not send, connection lost (flood?).');
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| 220 | return false;
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| 221 | }
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| 222 | }
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| 223 |
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| 224 | /**
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| 225 | * OpenSocket
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| 226 | * @param string $server host to connect to
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| 227 | * @param int $port port number
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| 228 | * @param bool $use_ssl use ssl or not
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| 229 | * @access public
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| 230 | * @return bool
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| 231 | */
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| 232 | function open_socket($server, $port, $use_ssl = false)
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| 233 | {
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| 234 | if (@function_exists('dns_get_record'))
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| 235 | {
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| 236 | $record = @dns_get_record("_xmpp-client._tcp.$server", DNS_SRV);
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| 237 | if (!empty($record) && !empty($record[0]['target']))
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| 238 | {
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| 239 | $server = $record[0]['target'];
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| 240 | }
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| 241 | }
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| 242 |
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| 243 | $server = $use_ssl ? 'ssl://' . $server : $server;
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| 244 |
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| 245 | if ($this->connection = @fsockopen($server, $port, $errorno, $errorstr, $this->timeout))
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| 246 | {
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| 247 | socket_set_blocking($this->connection, 0);
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| 248 | socket_set_timeout($this->connection, 60);
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| 249 |
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| 250 | return true;
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| 251 | }
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| 252 |
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| 253 | // Apparently an error occured...
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| 254 | $this->add_to_log('Error: open_socket() - ' . $errorstr);
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| 255 | return false;
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| 256 | }
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| 257 |
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| 258 | /**
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| 259 | * Return log
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| 260 | */
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| 261 | function get_log()
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| 262 | {
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| 263 | if ($this->enable_logging && sizeof($this->log_array))
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| 264 | {
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| 265 | return implode("<br /><br />", $this->log_array);
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| 266 | }
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| 267 |
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| 268 | return '';
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| 269 | }
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| 270 |
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| 271 | /**
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| 272 | * Add information to log
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| 273 | */
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| 274 | function add_to_log($string)
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| 275 | {
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| 276 | if ($this->enable_logging)
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| 277 | {
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| 278 | $this->log_array[] = utf8_htmlspecialchars($string);
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| 279 | }
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| 280 | }
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| 281 |
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| 282 | /**
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| 283 | * Listens to the connection until it gets data or the timeout is reached.
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| 284 | * Thus, it should only be called if data is expected to be received.
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| 285 | * @access public
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| 286 | * @return mixed either false for timeout or an array with the received data
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| 287 | */
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| 288 | function listen($timeout = 10, $wait = false)
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| 289 | {
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| 290 | if (!$this->connected())
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| 291 | {
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| 292 | return false;
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| 293 | }
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| 294 |
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| 295 | // Wait for a response until timeout is reached
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| 296 | $start = time();
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| 297 | $data = '';
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| 298 |
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| 299 | do
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| 300 | {
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| 301 | $read = trim(fread($this->connection, 4096));
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| 302 | $data .= $read;
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| 303 | }
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| 304 | while (time() <= $start + $timeout && !feof($this->connection) && ($wait || $data == '' || $read != '' || (substr(rtrim($data), -1) != '>')));
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| 305 |
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| 306 | if ($data != '')
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| 307 | {
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| 308 | $this->add_to_log('RECV: '. $data);
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| 309 | return $this->xmlize($data);
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| 310 | }
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| 311 | else
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| 312 | {
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| 313 | $this->add_to_log('Timeout, no response from server.');
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| 314 | return false;
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| 315 | }
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| 316 | }
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| 317 |
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| 318 | /**
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| 319 | * Initiates account registration (based on data used for contructor)
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| 320 | * @access public
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| 321 | * @return bool
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| 322 | */
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| 323 | function register()
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| 324 | {
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| 325 | if (!isset($this->session['id']) || isset($this->session['jid']))
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| 326 | {
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| 327 | $this->add_to_log('Error: Cannot initiate registration.');
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| 328 | return false;
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| 329 | }
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| 330 |
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| 331 | $this->send("<iq type='get' id='reg_1'><query xmlns='jabber:iq:register'/></iq>");
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| 332 | return $this->response($this->listen());
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| 333 | }
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| 334 |
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| 335 | /**
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| 336 | * Sets account presence. No additional info required (default is "online" status)
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| 337 | * @param $message online, offline...
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| 338 | * @param $type dnd, away, chat, xa or nothing
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| 339 | * @param $unavailable set this to true if you want to become unavailable
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| 340 | * @access public
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| 341 | * @return bool
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| 342 | */
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| 343 | function send_presence($message = '', $type = '', $unavailable = false)
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| 344 | {
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| 345 | if (!isset($this->session['jid']))
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| 346 | {
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| 347 | $this->add_to_log('ERROR: send_presence() - Cannot set presence at this point, no jid given.');
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| 348 | return false;
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| 349 | }
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| 350 |
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| 351 | $type = strtolower($type);
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| 352 | $type = (in_array($type, array('dnd', 'away', 'chat', 'xa'))) ? '<show>'. $type .'</show>' : '';
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| 353 |
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| 354 | $unavailable = ($unavailable) ? " type='unavailable'" : '';
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| 355 | $message = ($message) ? '<status>' . utf8_htmlspecialchars($message) .'</status>' : '';
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| 356 |
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| 357 | $this->session['sent_presence'] = !$unavailable;
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| 358 |
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| 359 | return $this->send("<presence$unavailable>" . $type . $message . '</presence>');
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| 360 | }
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| 361 |
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| 362 | /**
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| 363 | * This handles all the different XML elements
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| 364 | * @param array $xml
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| 365 | * @access public
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| 366 | * @return bool
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| 367 | */
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| 368 | function response($xml)
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| 369 | {
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| 370 | if (!is_array($xml) || !sizeof($xml))
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| 371 | {
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| 372 | return false;
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| 373 | }
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| 374 |
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| 375 | // did we get multiple elements? do one after another
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| 376 | // array('message' => ..., 'presence' => ...)
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| 377 | if (sizeof($xml) > 1)
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| 378 | {
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| 379 | foreach ($xml as $key => $value)
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| 380 | {
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| 381 | $this->response(array($key => $value));
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| 382 | }
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| 383 | return;
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| 384 | }
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| 385 | else
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| 386 | {
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| 387 | // or even multiple elements of the same type?
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| 388 | // array('message' => array(0 => ..., 1 => ...))
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| 389 | if (sizeof(reset($xml)) > 1)
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| 390 | {
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| 391 | foreach (reset($xml) as $value)
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| 392 | {
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| 393 | $this->response(array(key($xml) => array(0 => $value)));
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| 394 | }
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| 395 | return;
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| 396 | }
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| 397 | }
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| 398 |
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| 399 | switch (key($xml))
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| 400 | {
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| 401 | case 'stream:stream':
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| 402 | // Connection initialised (or after authentication). Not much to do here...
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| 403 |
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| 404 | if (isset($xml['stream:stream'][0]['#']['stream:features']))
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| 405 | {
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| 406 | // we already got all info we need
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| 407 | $this->features = $xml['stream:stream'][0]['#'];
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| 408 | }
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| 409 | else
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| 410 | {
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| 411 | $this->features = $this->listen();
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| 412 | }
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| 413 |
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| 414 | $second_time = isset($this->session['id']);
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| 415 | $this->session['id'] = $xml['stream:stream'][0]['@']['id'];
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| 416 |
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| 417 | if ($second_time)
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| 418 | {
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| 419 | // If we are here for the second time after TLS, we need to continue logging in
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| 420 | return $this->login();
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| 421 | }
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| 422 |
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| 423 | // go on with authentication?
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| 424 | if (isset($this->features['stream:features'][0]['#']['bind']) || !empty($this->session['tls']))
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| 425 | {
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| 426 | return $this->response($this->features);
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| 427 | }
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| 428 | break;
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| 429 |
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| 430 | case 'stream:features':
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| 431 | // Resource binding after successful authentication
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| 432 | if (isset($this->session['authenticated']))
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| 433 | {
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| 434 | // session required?
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| 435 | $this->session['sess_required'] = isset($xml['stream:features'][0]['#']['session']);
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| 436 |
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| 437 | $this->send("<iq type='set' id='bind_1'>
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| 438 | <bind xmlns='urn:ietf:params:xml:ns:xmpp-bind'>
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| 439 | <resource>" . utf8_htmlspecialchars($this->resource) . '</resource>
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| 440 | </bind>
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| 441 | </iq>');
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| 442 | return $this->response($this->listen());
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| 443 | }
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| 444 |
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| 445 | // Let's use TLS if SSL is not enabled and we can actually use it
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| 446 | if (!$this->session['ssl'] && $this->can_use_tls() && $this->can_use_ssl() && isset($xml['stream:features'][0]['#']['starttls']))
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| 447 | {
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| 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 | // http://www.ietf.org/rfc/rfc4616.txt (PLAIN SASL Mechanism)
|
|---|
| 480 | $this->send("<auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl' mechanism='PLAIN'>"
|
|---|
| 481 | . base64_encode($this->username . '@' . $this->server . chr(0) . $this->username . chr(0) . $this->password) .
|
|---|
| 482 | '</auth>');
|
|---|
| 483 | }
|
|---|
| 484 | else if (in_array('ANONYMOUS', $methods))
|
|---|
| 485 | {
|
|---|
| 486 | $this->send("<auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl' mechanism='ANONYMOUS'/>");
|
|---|
| 487 | }
|
|---|
| 488 | else
|
|---|
| 489 | {
|
|---|
| 490 | // not good...
|
|---|
| 491 | $this->add_to_log('Error: No authentication method supported.');
|
|---|
| 492 | $this->disconnect();
|
|---|
| 493 | return false;
|
|---|
| 494 | }
|
|---|
| 495 |
|
|---|
| 496 | return $this->response($this->listen());
|
|---|
| 497 | }
|
|---|
| 498 | else
|
|---|
| 499 | {
|
|---|
| 500 | // ok, this is it. bye.
|
|---|
| 501 | $this->add_to_log('Error: Server does not offer SASL authentication.');
|
|---|
| 502 | $this->disconnect();
|
|---|
| 503 | return false;
|
|---|
| 504 | }
|
|---|
| 505 | break;
|
|---|
| 506 |
|
|---|
| 507 | case 'challenge':
|
|---|
| 508 | // continue with authentication...a challenge literally -_-
|
|---|
| 509 | $decoded = base64_decode($xml['challenge'][0]['#']);
|
|---|
| 510 | $decoded = $this->parse_data($decoded);
|
|---|
| 511 |
|
|---|
| 512 | if (!isset($decoded['digest-uri']))
|
|---|
| 513 | {
|
|---|
| 514 | $decoded['digest-uri'] = 'xmpp/'. $this->server;
|
|---|
| 515 | }
|
|---|
| 516 |
|
|---|
| 517 | // better generate a cnonce, maybe it's needed
|
|---|
| 518 | $decoded['cnonce'] = base64_encode(md5(uniqid(mt_rand(), true)));
|
|---|
| 519 |
|
|---|
| 520 | // second challenge?
|
|---|
| 521 | if (isset($decoded['rspauth']))
|
|---|
| 522 | {
|
|---|
| 523 | $this->send("<response xmlns='urn:ietf:params:xml:ns:xmpp-sasl'/>");
|
|---|
| 524 | }
|
|---|
| 525 | else
|
|---|
| 526 | {
|
|---|
| 527 | // Make sure we only use 'auth' for qop (relevant for $this->encrypt_password())
|
|---|
| 528 | // If the <response> is choking up on the changed parameter we may need to adjust encrypt_password() directly
|
|---|
| 529 | if (isset($decoded['qop']) && $decoded['qop'] != 'auth' && strpos($decoded['qop'], 'auth') !== false)
|
|---|
| 530 | {
|
|---|
| 531 | $decoded['qop'] = 'auth';
|
|---|
| 532 | }
|
|---|
| 533 |
|
|---|
| 534 | $response = array(
|
|---|
| 535 | 'username' => $this->username,
|
|---|
| 536 | 'response' => $this->encrypt_password(array_merge($decoded, array('nc' => '00000001'))),
|
|---|
| 537 | 'charset' => 'utf-8',
|
|---|
| 538 | 'nc' => '00000001',
|
|---|
| 539 | 'qop' => 'auth', // only auth being supported
|
|---|
| 540 | );
|
|---|
| 541 |
|
|---|
| 542 | foreach (array('nonce', 'digest-uri', 'realm', 'cnonce') as $key)
|
|---|
| 543 | {
|
|---|
| 544 | if (isset($decoded[$key]))
|
|---|
| 545 | {
|
|---|
| 546 | $response[$key] = $decoded[$key];
|
|---|
| 547 | }
|
|---|
| 548 | }
|
|---|
| 549 |
|
|---|
| 550 | $this->send("<response xmlns='urn:ietf:params:xml:ns:xmpp-sasl'>" . base64_encode($this->implode_data($response)) . '</response>');
|
|---|
| 551 | }
|
|---|
| 552 |
|
|---|
| 553 | return $this->response($this->listen());
|
|---|
| 554 | break;
|
|---|
| 555 |
|
|---|
| 556 | case 'failure':
|
|---|
| 557 | $this->add_to_log('Error: Server sent "failure".');
|
|---|
| 558 | $this->disconnect();
|
|---|
| 559 | return false;
|
|---|
| 560 | break;
|
|---|
| 561 |
|
|---|
| 562 | case 'proceed':
|
|---|
| 563 | // continue switching to TLS
|
|---|
| 564 | $meta = stream_get_meta_data($this->connection);
|
|---|
| 565 | socket_set_blocking($this->connection, 1);
|
|---|
| 566 |
|
|---|
| 567 | if (!stream_socket_enable_crypto($this->connection, true, STREAM_CRYPTO_METHOD_TLS_CLIENT))
|
|---|
| 568 | {
|
|---|
| 569 | $this->add_to_log('Error: TLS mode change failed.');
|
|---|
| 570 | return false;
|
|---|
| 571 | }
|
|---|
| 572 |
|
|---|
| 573 | socket_set_blocking($this->connection, $meta['blocked']);
|
|---|
| 574 | $this->session['tls'] = true;
|
|---|
| 575 |
|
|---|
| 576 | // new stream
|
|---|
| 577 | $this->send("<?xml version='1.0' encoding='UTF-8' ?" . ">\n");
|
|---|
| 578 | $this->send("<stream:stream to='{$this->server}' xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' version='1.0'>\n");
|
|---|
| 579 |
|
|---|
| 580 | return $this->response($this->listen());
|
|---|
| 581 | break;
|
|---|
| 582 |
|
|---|
| 583 | case 'success':
|
|---|
| 584 | // Yay, authentication successful.
|
|---|
| 585 | $this->send("<stream:stream to='{$this->server}' xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' version='1.0'>\n");
|
|---|
| 586 | $this->session['authenticated'] = true;
|
|---|
| 587 |
|
|---|
| 588 | // we have to wait for another response
|
|---|
| 589 | return $this->response($this->listen());
|
|---|
| 590 | break;
|
|---|
| 591 |
|
|---|
| 592 | case 'iq':
|
|---|
| 593 | // we are not interested in IQs we did not expect
|
|---|
| 594 | if (!isset($xml['iq'][0]['@']['id']))
|
|---|
| 595 | {
|
|---|
| 596 | return false;
|
|---|
| 597 | }
|
|---|
| 598 |
|
|---|
| 599 | // multiple possibilities here
|
|---|
| 600 | switch ($xml['iq'][0]['@']['id'])
|
|---|
| 601 | {
|
|---|
| 602 | case 'bind_1':
|
|---|
| 603 | $this->session['jid'] = $xml['iq'][0]['#']['bind'][0]['#']['jid'][0]['#'];
|
|---|
| 604 |
|
|---|
| 605 | // and (maybe) yet another request to be able to send messages *finally*
|
|---|
| 606 | if ($this->session['sess_required'])
|
|---|
| 607 | {
|
|---|
| 608 | $this->send("<iq to='{$this->server}' type='set' id='sess_1'>
|
|---|
| 609 | <session xmlns='urn:ietf:params:xml:ns:xmpp-session'/>
|
|---|
| 610 | </iq>");
|
|---|
| 611 | return $this->response($this->listen());
|
|---|
| 612 | }
|
|---|
| 613 |
|
|---|
| 614 | return true;
|
|---|
| 615 | break;
|
|---|
| 616 |
|
|---|
| 617 | case 'sess_1':
|
|---|
| 618 | return true;
|
|---|
| 619 | break;
|
|---|
| 620 |
|
|---|
| 621 | case 'reg_1':
|
|---|
| 622 | $this->send("<iq type='set' id='reg_2'>
|
|---|
| 623 | <query xmlns='jabber:iq:register'>
|
|---|
| 624 | <username>" . utf8_htmlspecialchars($this->username) . "</username>
|
|---|
| 625 | <password>" . utf8_htmlspecialchars($this->password) . "</password>
|
|---|
| 626 | </query>
|
|---|
| 627 | </iq>");
|
|---|
| 628 | return $this->response($this->listen());
|
|---|
| 629 | break;
|
|---|
| 630 |
|
|---|
| 631 | case 'reg_2':
|
|---|
| 632 | // registration end
|
|---|
| 633 | if (isset($xml['iq'][0]['#']['error']))
|
|---|
| 634 | {
|
|---|
| 635 | $this->add_to_log('Warning: Registration failed.');
|
|---|
| 636 | return false;
|
|---|
| 637 | }
|
|---|
| 638 | return true;
|
|---|
| 639 | break;
|
|---|
| 640 |
|
|---|
| 641 | case 'unreg_1':
|
|---|
| 642 | return true;
|
|---|
| 643 | break;
|
|---|
| 644 |
|
|---|
| 645 | default:
|
|---|
| 646 | $this->add_to_log('Notice: Received unexpected IQ.');
|
|---|
| 647 | return false;
|
|---|
| 648 | break;
|
|---|
| 649 | }
|
|---|
| 650 | break;
|
|---|
| 651 |
|
|---|
| 652 | case 'message':
|
|---|
| 653 | // we are only interested in content...
|
|---|
| 654 | if (!isset($xml['message'][0]['#']['body']))
|
|---|
| 655 | {
|
|---|
| 656 | return false;
|
|---|
| 657 | }
|
|---|
| 658 |
|
|---|
| 659 | $message['body'] = $xml['message'][0]['#']['body'][0]['#'];
|
|---|
| 660 | $message['from'] = $xml['message'][0]['@']['from'];
|
|---|
| 661 |
|
|---|
| 662 | if (isset($xml['message'][0]['#']['subject']))
|
|---|
| 663 | {
|
|---|
| 664 | $message['subject'] = $xml['message'][0]['#']['subject'][0]['#'];
|
|---|
| 665 | }
|
|---|
| 666 | $this->session['messages'][] = $message;
|
|---|
| 667 | break;
|
|---|
| 668 |
|
|---|
| 669 | default:
|
|---|
| 670 | // hm...don't know this response
|
|---|
| 671 | $this->add_to_log('Notice: Unknown server response (' . key($xml) . ')');
|
|---|
| 672 | return false;
|
|---|
| 673 | break;
|
|---|
| 674 | }
|
|---|
| 675 | }
|
|---|
| 676 |
|
|---|
| 677 | function send_message($to, $text, $subject = '', $type = 'normal')
|
|---|
| 678 | {
|
|---|
| 679 | if (!isset($this->session['jid']))
|
|---|
| 680 | {
|
|---|
| 681 | return false;
|
|---|
| 682 | }
|
|---|
| 683 |
|
|---|
| 684 | if (!in_array($type, array('chat', 'normal', 'error', 'groupchat', 'headline')))
|
|---|
| 685 | {
|
|---|
| 686 | $type = 'normal';
|
|---|
| 687 | }
|
|---|
| 688 |
|
|---|
| 689 | return $this->send("<message from='" . utf8_htmlspecialchars($this->session['jid']) . "' to='" . utf8_htmlspecialchars($to) . "' type='$type' id='" . uniqid('msg') . "'>
|
|---|
| 690 | <subject>" . utf8_htmlspecialchars($subject) . "</subject>
|
|---|
| 691 | <body>" . utf8_htmlspecialchars($text) . "</body>
|
|---|
| 692 | </message>"
|
|---|
| 693 | );
|
|---|
| 694 | }
|
|---|
| 695 |
|
|---|
| 696 | /**
|
|---|
| 697 | * Encrypts a password as in RFC 2831
|
|---|
| 698 | * @param array $data Needs data from the client-server connection
|
|---|
| 699 | * @access public
|
|---|
| 700 | * @return string
|
|---|
| 701 | */
|
|---|
| 702 | function encrypt_password($data)
|
|---|
| 703 | {
|
|---|
| 704 | // let's me think about <challenge> again...
|
|---|
| 705 | foreach (array('realm', 'cnonce', 'digest-uri') as $key)
|
|---|
| 706 | {
|
|---|
| 707 | if (!isset($data[$key]))
|
|---|
| 708 | {
|
|---|
| 709 | $data[$key] = '';
|
|---|
| 710 | }
|
|---|
| 711 | }
|
|---|
| 712 |
|
|---|
| 713 | $pack = md5($this->username . ':' . $data['realm'] . ':' . $this->password);
|
|---|
| 714 |
|
|---|
| 715 | if (isset($data['authzid']))
|
|---|
| 716 | {
|
|---|
| 717 | $a1 = pack('H32', $pack) . sprintf(':%s:%s:%s', $data['nonce'], $data['cnonce'], $data['authzid']);
|
|---|
| 718 | }
|
|---|
| 719 | else
|
|---|
| 720 | {
|
|---|
| 721 | $a1 = pack('H32', $pack) . sprintf(':%s:%s', $data['nonce'], $data['cnonce']);
|
|---|
| 722 | }
|
|---|
| 723 |
|
|---|
| 724 | // should be: qop = auth
|
|---|
| 725 | $a2 = 'AUTHENTICATE:'. $data['digest-uri'];
|
|---|
| 726 |
|
|---|
| 727 | return md5(sprintf('%s:%s:%s:%s:%s:%s', md5($a1), $data['nonce'], $data['nc'], $data['cnonce'], $data['qop'], md5($a2)));
|
|---|
| 728 | }
|
|---|
| 729 |
|
|---|
| 730 | /**
|
|---|
| 731 | * parse_data like a="b",c="d",... or like a="a, b", c, d="e", f=g,...
|
|---|
| 732 | * @param string $data
|
|---|
| 733 | * @access public
|
|---|
| 734 | * @return array a => b ...
|
|---|
| 735 | */
|
|---|
| 736 | function parse_data($data)
|
|---|
| 737 | {
|
|---|
| 738 | $data = explode(',', $data);
|
|---|
| 739 | $pairs = array();
|
|---|
| 740 | $key = false;
|
|---|
| 741 |
|
|---|
| 742 | foreach ($data as $pair)
|
|---|
| 743 | {
|
|---|
| 744 | $dd = strpos($pair, '=');
|
|---|
| 745 |
|
|---|
| 746 | if ($dd)
|
|---|
| 747 | {
|
|---|
| 748 | $key = trim(substr($pair, 0, $dd));
|
|---|
| 749 | $pairs[$key] = trim(trim(substr($pair, $dd + 1)), '"');
|
|---|
| 750 | }
|
|---|
| 751 | else if (strpos(strrev(trim($pair)), '"') === 0 && $key)
|
|---|
| 752 | {
|
|---|
| 753 | // We are actually having something left from "a, b" values, add it to the last one we handled.
|
|---|
| 754 | $pairs[$key] .= ',' . trim(trim($pair), '"');
|
|---|
| 755 | continue;
|
|---|
| 756 | }
|
|---|
| 757 | }
|
|---|
| 758 |
|
|---|
| 759 | return $pairs;
|
|---|
| 760 | }
|
|---|
| 761 |
|
|---|
| 762 | /**
|
|---|
| 763 | * opposite of jabber::parse_data()
|
|---|
| 764 | * @param array $data
|
|---|
| 765 | * @access public
|
|---|
| 766 | * @return string
|
|---|
| 767 | */
|
|---|
| 768 | function implode_data($data)
|
|---|
| 769 | {
|
|---|
| 770 | $return = array();
|
|---|
| 771 | foreach ($data as $key => $value)
|
|---|
| 772 | {
|
|---|
| 773 | $return[] = $key . '="' . $value . '"';
|
|---|
| 774 | }
|
|---|
| 775 | return implode(',', $return);
|
|---|
| 776 | }
|
|---|
| 777 |
|
|---|
| 778 | /**
|
|---|
| 779 | * xmlize()
|
|---|
| 780 | * @author Hans Anderson
|
|---|
| 781 | * @copyright Hans Anderson / http://www.hansanderson.com/php/xml/
|
|---|
| 782 | */
|
|---|
| 783 | function xmlize($data, $skip_white = 1, $encoding = 'UTF-8')
|
|---|
| 784 | {
|
|---|
| 785 | $data = trim($data);
|
|---|
| 786 |
|
|---|
| 787 | if (substr($data, 0, 5) != '<?xml')
|
|---|
| 788 | {
|
|---|
| 789 | // mod
|
|---|
| 790 | $data = '<root>'. $data . '</root>';
|
|---|
| 791 | }
|
|---|
| 792 |
|
|---|
| 793 | $vals = $index = $array = array();
|
|---|
| 794 | $parser = xml_parser_create($encoding);
|
|---|
| 795 | xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0);
|
|---|
| 796 | xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, $skip_white);
|
|---|
| 797 | xml_parse_into_struct($parser, $data, $vals, $index);
|
|---|
| 798 | xml_parser_free($parser);
|
|---|
| 799 |
|
|---|
| 800 | $i = 0;
|
|---|
| 801 | $tagname = $vals[$i]['tag'];
|
|---|
| 802 |
|
|---|
| 803 | $array[$tagname][0]['@'] = (isset($vals[$i]['attributes'])) ? $vals[$i]['attributes'] : array();
|
|---|
| 804 | $array[$tagname][0]['#'] = $this->_xml_depth($vals, $i);
|
|---|
| 805 |
|
|---|
| 806 | if (substr($data, 0, 5) != '<?xml')
|
|---|
| 807 | {
|
|---|
| 808 | $array = $array['root'][0]['#'];
|
|---|
| 809 | }
|
|---|
| 810 |
|
|---|
| 811 | return $array;
|
|---|
| 812 | }
|
|---|
| 813 |
|
|---|
| 814 | /**
|
|---|
| 815 | * _xml_depth()
|
|---|
| 816 | * @author Hans Anderson
|
|---|
| 817 | * @copyright Hans Anderson / http://www.hansanderson.com/php/xml/
|
|---|
| 818 | */
|
|---|
| 819 | function _xml_depth($vals, &$i)
|
|---|
| 820 | {
|
|---|
| 821 | $children = array();
|
|---|
| 822 |
|
|---|
| 823 | if (isset($vals[$i]['value']))
|
|---|
| 824 | {
|
|---|
| 825 | array_push($children, $vals[$i]['value']);
|
|---|
| 826 | }
|
|---|
| 827 |
|
|---|
| 828 | while (++$i < sizeof($vals))
|
|---|
| 829 | {
|
|---|
| 830 | switch ($vals[$i]['type'])
|
|---|
| 831 | {
|
|---|
| 832 | case 'open':
|
|---|
| 833 |
|
|---|
| 834 | $tagname = (isset($vals[$i]['tag'])) ? $vals[$i]['tag'] : '';
|
|---|
| 835 | $size = (isset($children[$tagname])) ? sizeof($children[$tagname]) : 0;
|
|---|
| 836 |
|
|---|
| 837 | if (isset($vals[$i]['attributes']))
|
|---|
| 838 | {
|
|---|
| 839 | $children[$tagname][$size]['@'] = $vals[$i]['attributes'];
|
|---|
| 840 | }
|
|---|
| 841 |
|
|---|
| 842 | $children[$tagname][$size]['#'] = $this->_xml_depth($vals, $i);
|
|---|
| 843 |
|
|---|
| 844 | break;
|
|---|
| 845 |
|
|---|
| 846 | case 'cdata':
|
|---|
| 847 | array_push($children, $vals[$i]['value']);
|
|---|
| 848 | break;
|
|---|
| 849 |
|
|---|
| 850 | case 'complete':
|
|---|
| 851 |
|
|---|
| 852 | $tagname = $vals[$i]['tag'];
|
|---|
| 853 | $size = (isset($children[$tagname])) ? sizeof($children[$tagname]) : 0;
|
|---|
| 854 | $children[$tagname][$size]['#'] = (isset($vals[$i]['value'])) ? $vals[$i]['value'] : array();
|
|---|
| 855 |
|
|---|
| 856 | if (isset($vals[$i]['attributes']))
|
|---|
| 857 | {
|
|---|
| 858 | $children[$tagname][$size]['@'] = $vals[$i]['attributes'];
|
|---|
| 859 | }
|
|---|
| 860 |
|
|---|
| 861 | break;
|
|---|
| 862 |
|
|---|
| 863 | case 'close':
|
|---|
| 864 | return $children;
|
|---|
| 865 | break;
|
|---|
| 866 | }
|
|---|
| 867 | }
|
|---|
| 868 |
|
|---|
| 869 | return $children;
|
|---|
| 870 | }
|
|---|
| 871 | }
|
|---|
| 872 |
|
|---|
| 873 | ?>
|
|---|
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