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.');
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449 | $this->send("<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>\n");
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450 | return $this->response($this->listen());
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451 | }
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452 |
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453 | // Does the server support SASL authentication?
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454 |
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455 | // I hope so, because we do (and no other method).
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456 | if (isset($xml['stream:features'][0]['#']['mechanisms'][0]['@']['xmlns']) && $xml['stream:features'][0]['#']['mechanisms'][0]['@']['xmlns'] == 'urn:ietf:params:xml:ns:xmpp-sasl')
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457 | {
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458 | // Now decide on method
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459 | $methods = array();
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460 |
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461 | foreach ($xml['stream:features'][0]['#']['mechanisms'][0]['#']['mechanism'] as $value)
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462 | {
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463 | $methods[] = $value['#'];
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464 | }
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465 |
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466 | // we prefer DIGEST-MD5
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467 | // we don't want to use plain authentication (neither does the server usually) if no encryption is in place
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468 |
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469 | // http://www.xmpp.org/extensions/attic/jep-0078-1.7.html
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470 | // The plaintext mechanism SHOULD NOT be used unless the underlying stream is encrypted (using SSL or TLS)
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471 | // and the client has verified that the server certificate is signed by a trusted certificate authority.
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472 |
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473 | if (in_array('DIGEST-MD5', $methods))
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474 | {
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475 | $this->send("<auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl' mechanism='DIGEST-MD5'/>");
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476 | }
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477 | else if (in_array('PLAIN', $methods) && ($this->session['ssl'] || !empty($this->session['tls'])))
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478 | {
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479 | // http://www.ietf.org/rfc/rfc4616.txt (PLAIN SASL Mechanism)
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480 | $this->send("<auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl' mechanism='PLAIN'>"
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481 | . base64_encode($this->username . '@' . $this->server . chr(0) . $this->username . chr(0) . $this->password) .
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482 | '</auth>');
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483 | }
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484 | else if (in_array('ANONYMOUS', $methods))
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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 | ?>
|
---|