|
 |
ef5584 |
|
|
|
ef5584 |
/**
|
|
|
ef5584 |
*
|
|
|
ef5584 |
* @package phpBB3
|
|
|
ef5584 |
* @version $Id: functions_jabber.php 8979 2008-10-08 12:44:23Z acydburn $
|
|
|
ef5584 |
* @copyright (c) 2007 phpBB Group
|
|
|
ef5584 |
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
|
|
|
ef5584 |
*
|
|
|
ef5584 |
*/
|
|
|
ef5584 |
|
|
|
ef5584 |
/**
|
|
|
ef5584 |
* @ignore
|
|
|
ef5584 |
*/
|
|
|
ef5584 |
if (!defined('IN_PHPBB'))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
exit;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
/**
|
|
|
ef5584 |
*
|
|
|
ef5584 |
* Jabber class from Flyspray project
|
|
|
ef5584 |
*
|
|
|
ef5584 |
* @version class.jabber2.php 1595 2008-09-19 (0.9.9)
|
|
|
ef5584 |
* @copyright 2006 Flyspray.org
|
|
|
ef5584 |
* @author Florian Schmitz (floele)
|
|
|
ef5584 |
*
|
|
|
ef5584 |
* Only slightly modified by Acyd Burn
|
|
|
ef5584 |
*
|
|
|
ef5584 |
* @package phpBB3
|
|
|
ef5584 |
*/
|
|
|
ef5584 |
class jabber
|
|
|
ef5584 |
{
|
|
|
ef5584 |
var $connection = null;
|
|
|
ef5584 |
var $session = array();
|
|
|
ef5584 |
var $timeout = 10;
|
|
|
ef5584 |
|
|
|
ef5584 |
var $server;
|
|
|
ef5584 |
var $connect_server;
|
|
|
ef5584 |
var $port;
|
|
|
ef5584 |
var $username;
|
|
|
ef5584 |
var $password;
|
|
|
ef5584 |
var $use_ssl;
|
|
|
ef5584 |
var $resource = 'functions_jabber.phpbb.php';
|
|
|
ef5584 |
|
|
|
ef5584 |
var $enable_logging;
|
|
|
ef5584 |
var $log_array;
|
|
|
ef5584 |
|
|
|
ef5584 |
var $features = array();
|
|
|
ef5584 |
|
|
|
ef5584 |
/**
|
|
|
ef5584 |
*/
|
|
|
ef5584 |
function jabber($server, $port, $username, $password, $use_ssl = false)
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$this->connect_server = ($server) ? $server : 'localhost';
|
|
|
ef5584 |
$this->port = ($port) ? $port : 5222;
|
|
|
ef5584 |
|
|
|
ef5584 |
// Get the server and the username
|
|
|
ef5584 |
if (strpos($username, '@') === false)
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$this->server = $this->connect_server;
|
|
|
ef5584 |
$this->username = $username;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
else
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$jid = explode('@', $username, 2);
|
|
|
ef5584 |
|
|
|
ef5584 |
$this->username = $jid[0];
|
|
|
ef5584 |
$this->server = $jid[1];
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
$this->password = $password;
|
|
|
ef5584 |
$this->use_ssl = ($use_ssl && $this->can_use_ssl()) ? true : false;
|
|
|
ef5584 |
|
|
|
ef5584 |
// Change port if we use SSL
|
|
|
ef5584 |
if ($this->port == 5222 && $this->use_ssl)
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$this->port = 5223;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
$this->enable_logging = true;
|
|
|
ef5584 |
$this->log_array = array();
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
/**
|
|
|
ef5584 |
* Able to use the SSL functionality?
|
|
|
ef5584 |
*/
|
|
|
ef5584 |
function can_use_ssl()
|
|
|
ef5584 |
{
|
|
|
ef5584 |
// 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)
|
|
|
ef5584 |
return ((version_compare(PHP_VERSION, '5.2.1', '<') || version_compare(PHP_VERSION, '5.2.3RC2', '>=')) && @extension_loaded('openssl')) ? true : false;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
/**
|
|
|
ef5584 |
* Able to use TLS?
|
|
|
ef5584 |
*/
|
|
|
ef5584 |
function can_use_tls()
|
|
|
ef5584 |
{
|
|
|
ef5584 |
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'))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
return false;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
/**
|
|
|
ef5584 |
* Make sure the encryption stream is supported
|
|
|
ef5584 |
* Also seem to work without the crypto stream if correctly compiled
|
|
|
ef5584 |
|
|
|
ef5584 |
$streams = stream_get_wrappers();
|
|
|
ef5584 |
|
|
|
ef5584 |
if (!in_array('streams.crypto', $streams))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
return false;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
*/
|
|
|
ef5584 |
|
|
|
ef5584 |
return true;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
/**
|
|
|
ef5584 |
* Sets the resource which is used. No validation is done here, only escaping.
|
|
|
ef5584 |
* @param string $name
|
|
|
ef5584 |
* @access public
|
|
|
ef5584 |
*/
|
|
|
ef5584 |
function set_resource($name)
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$this->resource = $name;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
/**
|
|
|
ef5584 |
* Connect
|
|
|
ef5584 |
*/
|
|
|
ef5584 |
function connect()
|
|
|
ef5584 |
{
|
|
|
ef5584 |
/* if (!$this->check_jid($this->username . '@' . $this->server))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$this->add_to_log('Error: Jabber ID is not valid: ' . $this->username . '@' . $this->server);
|
|
|
ef5584 |
return false;
|
|
|
ef5584 |
}*/
|
|
|
ef5584 |
|
|
|
ef5584 |
$this->session['ssl'] = $this->use_ssl;
|
|
|
ef5584 |
|
|
|
ef5584 |
if ($this->open_socket($this->connect_server, $this->port, $this->use_ssl))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$this->send("\n");
|
|
|
ef5584 |
$this->send("<stream:stream to='{$this->server}' xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' version='1.0'>\n");
|
|
|
ef5584 |
}
|
|
|
ef5584 |
else
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$this->add_to_log('Error: connect() #2');
|
|
|
ef5584 |
return false;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
// Now we listen what the server has to say...and give appropriate responses
|
|
|
ef5584 |
$this->response($this->listen());
|
|
|
ef5584 |
return true;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
/**
|
|
|
ef5584 |
* Disconnect
|
|
|
ef5584 |
*/
|
|
|
ef5584 |
function disconnect()
|
|
|
ef5584 |
{
|
|
|
ef5584 |
if ($this->connected())
|
|
|
ef5584 |
{
|
|
|
ef5584 |
// disconnect gracefully
|
|
|
ef5584 |
if (isset($this->session['sent_presence']))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$this->send_presence('offline', '', true);
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
$this->send('</stream:stream>');
|
|
|
ef5584 |
$this->session = array();
|
|
|
ef5584 |
return fclose($this->connection);
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
return false;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
/**
|
|
|
ef5584 |
* Connected?
|
|
|
ef5584 |
*/
|
|
|
ef5584 |
function connected()
|
|
|
ef5584 |
{
|
|
|
ef5584 |
return (is_resource($this->connection) && !feof($this->connection)) ? true : false;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
|
|
|
ef5584 |
/**
|
|
|
ef5584 |
* Initiates login (using data from contructor, after calling connect())
|
|
|
ef5584 |
* @access public
|
|
|
ef5584 |
* @return bool
|
|
|
ef5584 |
*/
|
|
|
ef5584 |
function login()
|
|
|
ef5584 |
{
|
|
|
ef5584 |
if (!sizeof($this->features))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$this->add_to_log('Error: No feature information from server available.');
|
|
|
ef5584 |
return false;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
return $this->response($this->features);
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
/**
|
|
|
ef5584 |
* Send data to the Jabber server
|
|
|
ef5584 |
* @param string $xml
|
|
|
ef5584 |
* @access public
|
|
|
ef5584 |
* @return bool
|
|
|
ef5584 |
*/
|
|
|
ef5584 |
function send($xml)
|
|
|
ef5584 |
{
|
|
|
ef5584 |
if ($this->connected())
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$xml = trim($xml);
|
|
|
ef5584 |
$this->add_to_log('SEND: '. $xml);
|
|
|
ef5584 |
return fwrite($this->connection, $xml);
|
|
|
ef5584 |
}
|
|
|
ef5584 |
else
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$this->add_to_log('Error: Could not send, connection lost (flood?).');
|
|
|
ef5584 |
return false;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
/**
|
|
|
ef5584 |
* OpenSocket
|
|
|
ef5584 |
* @param string $server host to connect to
|
|
|
ef5584 |
* @param int $port port number
|
|
|
ef5584 |
* @param bool $use_ssl use ssl or not
|
|
|
ef5584 |
* @access public
|
|
|
ef5584 |
* @return bool
|
|
|
ef5584 |
*/
|
|
|
ef5584 |
function open_socket($server, $port, $use_ssl = false)
|
|
|
ef5584 |
{
|
|
|
ef5584 |
if (@function_exists('dns_get_record'))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$record = @dns_get_record("_xmpp-client._tcp.$server", DNS_SRV);
|
|
|
ef5584 |
if (!empty($record) && !empty($record[0]['target']))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$server = $record[0]['target'];
|
|
|
ef5584 |
}
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
$server = $use_ssl ? 'ssl://' . $server : $server;
|
|
|
ef5584 |
|
|
|
ef5584 |
if ($this->connection = @fsockopen($server, $port, $errorno, $errorstr, $this->timeout))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
socket_set_blocking($this->connection, 0);
|
|
|
ef5584 |
socket_set_timeout($this->connection, 60);
|
|
|
ef5584 |
|
|
|
ef5584 |
return true;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
// Apparently an error occured...
|
|
|
ef5584 |
$this->add_to_log('Error: open_socket() - ' . $errorstr);
|
|
|
ef5584 |
return false;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
/**
|
|
|
ef5584 |
* Return log
|
|
|
ef5584 |
*/
|
|
|
ef5584 |
function get_log()
|
|
|
ef5584 |
{
|
|
|
ef5584 |
if ($this->enable_logging && sizeof($this->log_array))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
return implode("
", $this->log_array);
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
return '';
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
/**
|
|
|
ef5584 |
* Add information to log
|
|
|
ef5584 |
*/
|
|
|
ef5584 |
function add_to_log($string)
|
|
|
ef5584 |
{
|
|
|
ef5584 |
if ($this->enable_logging)
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$this->log_array[] = utf8_htmlspecialchars($string);
|
|
|
ef5584 |
}
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
/**
|
|
|
ef5584 |
* Listens to the connection until it gets data or the timeout is reached.
|
|
|
ef5584 |
* Thus, it should only be called if data is expected to be received.
|
|
|
ef5584 |
* @access public
|
|
|
ef5584 |
* @return mixed either false for timeout or an array with the received data
|
|
|
ef5584 |
*/
|
|
|
ef5584 |
function listen($timeout = 10, $wait = false)
|
|
|
ef5584 |
{
|
|
|
ef5584 |
if (!$this->connected())
|
|
|
ef5584 |
{
|
|
|
ef5584 |
return false;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
// Wait for a response until timeout is reached
|
|
|
ef5584 |
$start = time();
|
|
|
ef5584 |
$data = '';
|
|
|
ef5584 |
|
|
|
ef5584 |
do
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$read = trim(fread($this->connection, 4096));
|
|
|
ef5584 |
$data .= $read;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
while (time() <= $start + $timeout && !feof($this->connection) && ($wait || $data == '' || $read != '' || (substr(rtrim($data), -1) != '>')));
|
|
|
ef5584 |
|
|
|
ef5584 |
if ($data != '')
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$this->add_to_log('RECV: '. $data);
|
|
|
ef5584 |
return $this->xmlize($data);
|
|
|
ef5584 |
}
|
|
|
ef5584 |
else
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$this->add_to_log('Timeout, no response from server.');
|
|
|
ef5584 |
return false;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
/**
|
|
|
ef5584 |
* Initiates account registration (based on data used for contructor)
|
|
|
ef5584 |
* @access public
|
|
|
ef5584 |
* @return bool
|
|
|
ef5584 |
*/
|
|
|
ef5584 |
function register()
|
|
|
ef5584 |
{
|
|
|
ef5584 |
if (!isset($this->session['id']) || isset($this->session['jid']))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$this->add_to_log('Error: Cannot initiate registration.');
|
|
|
ef5584 |
return false;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
$this->send("<iq type='get' id='reg_1'><query xmlns='jabber:iq:register'/></iq>");
|
|
|
ef5584 |
return $this->response($this->listen());
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
/**
|
|
|
ef5584 |
* Sets account presence. No additional info required (default is "online" status)
|
|
|
ef5584 |
* @param $message online, offline...
|
|
|
ef5584 |
* @param $type dnd, away, chat, xa or nothing
|
|
|
ef5584 |
* @param $unavailable set this to true if you want to become unavailable
|
|
|
ef5584 |
* @access public
|
|
|
ef5584 |
* @return bool
|
|
|
ef5584 |
*/
|
|
|
ef5584 |
function send_presence($message = '', $type = '', $unavailable = false)
|
|
|
ef5584 |
{
|
|
|
ef5584 |
if (!isset($this->session['jid']))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$this->add_to_log('ERROR: send_presence() - Cannot set presence at this point, no jid given.');
|
|
|
ef5584 |
return false;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
$type = strtolower($type);
|
|
|
ef5584 |
$type = (in_array($type, array('dnd', 'away', 'chat', 'xa'))) ? '<show>'. $type .'</show>' : '';
|
|
|
ef5584 |
|
|
|
ef5584 |
$unavailable = ($unavailable) ? " type='unavailable'" : '';
|
|
|
ef5584 |
$message = ($message) ? '<status>' . utf8_htmlspecialchars($message) .'</status>' : '';
|
|
|
ef5584 |
|
|
|
ef5584 |
$this->session['sent_presence'] = !$unavailable;
|
|
|
ef5584 |
|
|
|
ef5584 |
return $this->send("<presence$unavailable>" . $type . $message . '</presence>');
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
/**
|
|
|
ef5584 |
* This handles all the different XML elements
|
|
|
ef5584 |
* @param array $xml
|
|
|
ef5584 |
* @access public
|
|
|
ef5584 |
* @return bool
|
|
|
ef5584 |
*/
|
|
|
ef5584 |
function response($xml)
|
|
|
ef5584 |
{
|
|
|
ef5584 |
if (!is_array($xml) || !sizeof($xml))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
return false;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
// did we get multiple elements? do one after another
|
|
|
ef5584 |
// array('message' => ..., 'presence' => ...)
|
|
|
ef5584 |
if (sizeof($xml) > 1)
|
|
|
ef5584 |
{
|
|
|
ef5584 |
foreach ($xml as $key => $value)
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$this->response(array($key => $value));
|
|
|
ef5584 |
}
|
|
|
ef5584 |
return;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
else
|
|
|
ef5584 |
{
|
|
|
ef5584 |
// or even multiple elements of the same type?
|
|
|
ef5584 |
// array('message' => array(0 => ..., 1 => ...))
|
|
|
ef5584 |
if (sizeof(reset($xml)) > 1)
|
|
|
ef5584 |
{
|
|
|
ef5584 |
foreach (reset($xml) as $value)
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$this->response(array(key($xml) => array(0 => $value)));
|
|
|
ef5584 |
}
|
|
|
ef5584 |
return;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
switch (key($xml))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
case 'stream:stream':
|
|
|
ef5584 |
// Connection initialised (or after authentication). Not much to do here...
|
|
|
ef5584 |
|
|
|
ef5584 |
if (isset($xml['stream:stream'][0]['#']['stream:features']))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
// we already got all info we need
|
|
|
ef5584 |
$this->features = $xml['stream:stream'][0]['#'];
|
|
|
ef5584 |
}
|
|
|
ef5584 |
else
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$this->features = $this->listen();
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
$second_time = isset($this->session['id']);
|
|
|
ef5584 |
$this->session['id'] = $xml['stream:stream'][0]['@']['id'];
|
|
|
ef5584 |
|
|
|
ef5584 |
if ($second_time)
|
|
|
ef5584 |
{
|
|
|
ef5584 |
// If we are here for the second time after TLS, we need to continue logging in
|
|
|
ef5584 |
return $this->login();
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
// go on with authentication?
|
|
|
ef5584 |
if (isset($this->features['stream:features'][0]['#']['bind']) || !empty($this->session['tls']))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
return $this->response($this->features);
|
|
|
ef5584 |
}
|
|
|
ef5584 |
break;
|
|
|
ef5584 |
|
|
|
ef5584 |
case 'stream:features':
|
|
|
ef5584 |
// Resource binding after successful authentication
|
|
|
ef5584 |
if (isset($this->session['authenticated']))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
// session required?
|
|
|
ef5584 |
$this->session['sess_required'] = isset($xml['stream:features'][0]['#']['session']);
|
|
|
ef5584 |
|
|
|
ef5584 |
$this->send("<iq type='set' id='bind_1'>
|
|
|
ef5584 |
<bind xmlns='urn:ietf:params:xml:ns:xmpp-bind'>
|
|
|
ef5584 |
<resource>" . utf8_htmlspecialchars($this->resource) . '</resource>
|
|
|
ef5584 |
</bind>
|
|
|
ef5584 |
</iq>');
|
|
|
ef5584 |
return $this->response($this->listen());
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
// Let's use TLS if SSL is not enabled and we can actually use it
|
|
|
ef5584 |
if (!$this->session['ssl'] && $this->can_use_tls() && $this->can_use_ssl() && isset($xml['stream:features'][0]['#']['starttls']))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$this->add_to_log('Switching to TLS.');
|
|
|
ef5584 |
$this->send("<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>\n");
|
|
|
ef5584 |
return $this->response($this->listen());
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
// Does the server support SASL authentication?
|
|
|
ef5584 |
|
|
|
ef5584 |
// I hope so, because we do (and no other method).
|
|
|
ef5584 |
if (isset($xml['stream:features'][0]['#']['mechanisms'][0]['@']['xmlns']) && $xml['stream:features'][0]['#']['mechanisms'][0]['@']['xmlns'] == 'urn:ietf:params:xml:ns:xmpp-sasl')
|
|
|
ef5584 |
{
|
|
|
ef5584 |
// Now decide on method
|
|
|
ef5584 |
$methods = array();
|
|
|
ef5584 |
|
|
|
ef5584 |
foreach ($xml['stream:features'][0]['#']['mechanisms'][0]['#']['mechanism'] as $value)
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$methods[] = $value['#'];
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
// we prefer DIGEST-MD5
|
|
|
ef5584 |
// we don't want to use plain authentication (neither does the server usually) if no encryption is in place
|
|
|
ef5584 |
|
|
|
ef5584 |
// http://www.xmpp.org/extensions/attic/jep-0078-1.7.html
|
|
|
ef5584 |
// The plaintext mechanism SHOULD NOT be used unless the underlying stream is encrypted (using SSL or TLS)
|
|
|
ef5584 |
// and the client has verified that the server certificate is signed by a trusted certificate authority.
|
|
|
ef5584 |
|
|
|
ef5584 |
if (in_array('DIGEST-MD5', $methods))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$this->send("<auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl' mechanism='DIGEST-MD5'/>");
|
|
|
ef5584 |
}
|
|
|
ef5584 |
else if (in_array('PLAIN', $methods) && ($this->session['ssl'] || !empty($this->session['tls'])))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$this->send("<auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl' mechanism='PLAIN'>"
|
|
|
ef5584 |
. base64_encode(chr(0) . $this->username . '@' . $this->server . chr(0) . $this->password) .
|
|
|
ef5584 |
'</auth>');
|
|
|
ef5584 |
}
|
|
|
ef5584 |
else if (in_array('ANONYMOUS', $methods))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$this->send("<auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl' mechanism='ANONYMOUS'/>");
|
|
|
ef5584 |
}
|
|
|
ef5584 |
else
|
|
|
ef5584 |
{
|
|
|
ef5584 |
// not good...
|
|
|
ef5584 |
$this->add_to_log('Error: No authentication method supported.');
|
|
|
ef5584 |
$this->disconnect();
|
|
|
ef5584 |
return false;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
return $this->response($this->listen());
|
|
|
ef5584 |
}
|
|
|
ef5584 |
else
|
|
|
ef5584 |
{
|
|
|
ef5584 |
// ok, this is it. bye.
|
|
|
ef5584 |
$this->add_to_log('Error: Server does not offer SASL authentication.');
|
|
|
ef5584 |
$this->disconnect();
|
|
|
ef5584 |
return false;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
break;
|
|
|
ef5584 |
|
|
|
ef5584 |
case 'challenge':
|
|
|
ef5584 |
// continue with authentication...a challenge literally -_-
|
|
|
ef5584 |
$decoded = base64_decode($xml['challenge'][0]['#']);
|
|
|
ef5584 |
$decoded = $this->parse_data($decoded);
|
|
|
ef5584 |
|
|
|
ef5584 |
if (!isset($decoded['digest-uri']))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$decoded['digest-uri'] = 'xmpp/'. $this->server;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
// better generate a cnonce, maybe it's needed
|
|
|
ef5584 |
$decoded['cnonce'] = base64_encode(md5(uniqid(mt_rand(), true)));
|
|
|
ef5584 |
|
|
|
ef5584 |
// second challenge?
|
|
|
ef5584 |
if (isset($decoded['rspauth']))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$this->send("<response xmlns='urn:ietf:params:xml:ns:xmpp-sasl'/>");
|
|
|
ef5584 |
}
|
|
|
ef5584 |
else
|
|
|
ef5584 |
{
|
|
|
ef5584 |
// Make sure we only use 'auth' for qop (relevant for $this->encrypt_password())
|
|
|
ef5584 |
// If the <response> is choking up on the changed parameter we may need to adjust encrypt_password() directly
|
|
|
ef5584 |
if (isset($decoded['qop']) && $decoded['qop'] != 'auth' && strpos($decoded['qop'], 'auth') !== false)
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$decoded['qop'] = 'auth';
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
$response = array(
|
|
|
ef5584 |
'username' => $this->username,
|
|
|
ef5584 |
'response' => $this->encrypt_password(array_merge($decoded, array('nc' => '00000001'))),
|
|
|
ef5584 |
'charset' => 'utf-8',
|
|
|
ef5584 |
'nc' => '00000001',
|
|
|
ef5584 |
'qop' => 'auth', // only auth being supported
|
|
|
ef5584 |
);
|
|
|
ef5584 |
|
|
|
ef5584 |
foreach (array('nonce', 'digest-uri', 'realm', 'cnonce') as $key)
|
|
|
ef5584 |
{
|
|
|
ef5584 |
if (isset($decoded[$key]))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$response[$key] = $decoded[$key];
|
|
|
ef5584 |
}
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
$this->send("<response xmlns='urn:ietf:params:xml:ns:xmpp-sasl'>" . base64_encode($this->implode_data($response)) . '</response>');
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
return $this->response($this->listen());
|
|
|
ef5584 |
break;
|
|
|
ef5584 |
|
|
|
ef5584 |
case 'failure':
|
|
|
ef5584 |
$this->add_to_log('Error: Server sent "failure".');
|
|
|
ef5584 |
$this->disconnect();
|
|
|
ef5584 |
return false;
|
|
|
ef5584 |
break;
|
|
|
ef5584 |
|
|
|
ef5584 |
case 'proceed':
|
|
|
ef5584 |
// continue switching to TLS
|
|
|
ef5584 |
$meta = stream_get_meta_data($this->connection);
|
|
|
ef5584 |
socket_set_blocking($this->connection, 1);
|
|
|
ef5584 |
|
|
|
ef5584 |
if (!stream_socket_enable_crypto($this->connection, true, STREAM_CRYPTO_METHOD_TLS_CLIENT))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$this->add_to_log('Error: TLS mode change failed.');
|
|
|
ef5584 |
return false;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
socket_set_blocking($this->connection, $meta['blocked']);
|
|
|
ef5584 |
$this->session['tls'] = true;
|
|
|
ef5584 |
|
|
|
ef5584 |
// new stream
|
|
|
ef5584 |
$this->send("\n");
|
|
|
ef5584 |
$this->send("<stream:stream to='{$this->server}' xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' version='1.0'>\n");
|
|
|
ef5584 |
|
|
|
ef5584 |
return $this->response($this->listen());
|
|
|
ef5584 |
break;
|
|
|
ef5584 |
|
|
|
ef5584 |
case 'success':
|
|
|
ef5584 |
// Yay, authentication successful.
|
|
|
ef5584 |
$this->send("<stream:stream to='{$this->server}' xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' version='1.0'>\n");
|
|
|
ef5584 |
$this->session['authenticated'] = true;
|
|
|
ef5584 |
|
|
|
ef5584 |
// we have to wait for another response
|
|
|
ef5584 |
return $this->response($this->listen());
|
|
|
ef5584 |
break;
|
|
|
ef5584 |
|
|
|
ef5584 |
case 'iq':
|
|
|
ef5584 |
// we are not interested in IQs we did not expect
|
|
|
ef5584 |
if (!isset($xml['iq'][0]['@']['id']))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
return false;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
// multiple possibilities here
|
|
|
ef5584 |
switch ($xml['iq'][0]['@']['id'])
|
|
|
ef5584 |
{
|
|
|
ef5584 |
case 'bind_1':
|
|
|
ef5584 |
$this->session['jid'] = $xml['iq'][0]['#']['bind'][0]['#']['jid'][0]['#'];
|
|
|
ef5584 |
|
|
|
ef5584 |
// and (maybe) yet another request to be able to send messages *finally*
|
|
|
ef5584 |
if ($this->session['sess_required'])
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$this->send("<iq to='{$this->server}' type='set' id='sess_1'>
|
|
|
ef5584 |
<session xmlns='urn:ietf:params:xml:ns:xmpp-session'/>
|
|
|
ef5584 |
</iq>");
|
|
|
ef5584 |
return $this->response($this->listen());
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
return true;
|
|
|
ef5584 |
break;
|
|
|
ef5584 |
|
|
|
ef5584 |
case 'sess_1':
|
|
|
ef5584 |
return true;
|
|
|
ef5584 |
break;
|
|
|
ef5584 |
|
|
|
ef5584 |
case 'reg_1':
|
|
|
ef5584 |
$this->send("<iq type='set' id='reg_2'>
|
|
|
ef5584 |
<query xmlns='jabber:iq:register'>
|
|
|
ef5584 |
<username>" . utf8_htmlspecialchars($this->username) . "</username>
|
|
|
ef5584 |
<password>" . utf8_htmlspecialchars($this->password) . "</password>
|
|
|
ef5584 |
</query>
|
|
|
ef5584 |
</iq>");
|
|
|
ef5584 |
return $this->response($this->listen());
|
|
|
ef5584 |
break;
|
|
|
ef5584 |
|
|
|
ef5584 |
case 'reg_2':
|
|
|
ef5584 |
// registration end
|
|
|
ef5584 |
if (isset($xml['iq'][0]['#']['error']))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$this->add_to_log('Warning: Registration failed.');
|
|
|
ef5584 |
return false;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
return true;
|
|
|
ef5584 |
break;
|
|
|
ef5584 |
|
|
|
ef5584 |
case 'unreg_1':
|
|
|
ef5584 |
return true;
|
|
|
ef5584 |
break;
|
|
|
ef5584 |
|
|
|
ef5584 |
default:
|
|
|
ef5584 |
$this->add_to_log('Notice: Received unexpected IQ.');
|
|
|
ef5584 |
return false;
|
|
|
ef5584 |
break;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
break;
|
|
|
ef5584 |
|
|
|
ef5584 |
case 'message':
|
|
|
ef5584 |
// we are only interested in content...
|
|
|
ef5584 |
if (!isset($xml['message'][0]['#']['body']))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
return false;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
$message['body'] = $xml['message'][0]['#']['body'][0]['#'];
|
|
|
ef5584 |
$message['from'] = $xml['message'][0]['@']['from'];
|
|
|
ef5584 |
|
|
|
ef5584 |
if (isset($xml['message'][0]['#']['subject']))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$message['subject'] = $xml['message'][0]['#']['subject'][0]['#'];
|
|
|
ef5584 |
}
|
|
|
ef5584 |
$this->session['messages'][] = $message;
|
|
|
ef5584 |
break;
|
|
|
ef5584 |
|
|
|
ef5584 |
default:
|
|
|
ef5584 |
// hm...don't know this response
|
|
|
ef5584 |
$this->add_to_log('Notice: Unknown server response (' . key($xml) . ')');
|
|
|
ef5584 |
return false;
|
|
|
ef5584 |
break;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
function send_message($to, $text, $subject = '', $type = 'normal')
|
|
|
ef5584 |
{
|
|
|
ef5584 |
if (!isset($this->session['jid']))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
return false;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
if (!in_array($type, array('chat', 'normal', 'error', 'groupchat', 'headline')))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$type = 'normal';
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
return $this->send("<message from='" . utf8_htmlspecialchars($this->session['jid']) . "' to='" . utf8_htmlspecialchars($to) . "' type='$type' id='" . uniqid('msg') . "'>
|
|
|
ef5584 |
<subject>" . utf8_htmlspecialchars($subject) . "</subject>
|
|
|
ef5584 |
<body>" . utf8_htmlspecialchars($text) . "</body>
|
|
|
ef5584 |
</message>"
|
|
|
ef5584 |
);
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
/**
|
|
|
ef5584 |
* Encrypts a password as in RFC 2831
|
|
|
ef5584 |
* @param array $data Needs data from the client-server connection
|
|
|
ef5584 |
* @access public
|
|
|
ef5584 |
* @return string
|
|
|
ef5584 |
*/
|
|
|
ef5584 |
function encrypt_password($data)
|
|
|
ef5584 |
{
|
|
|
ef5584 |
// let's me think about <challenge> again...
|
|
|
ef5584 |
foreach (array('realm', 'cnonce', 'digest-uri') as $key)
|
|
|
ef5584 |
{
|
|
|
ef5584 |
if (!isset($data[$key]))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$data[$key] = '';
|
|
|
ef5584 |
}
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
$pack = md5($this->username . ':' . $data['realm'] . ':' . $this->password);
|
|
|
ef5584 |
|
|
|
ef5584 |
if (isset($data['authzid']))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$a1 = pack('H32', $pack) . sprintf(':%s:%s:%s', $data['nonce'], $data['cnonce'], $data['authzid']);
|
|
|
ef5584 |
}
|
|
|
ef5584 |
else
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$a1 = pack('H32', $pack) . sprintf(':%s:%s', $data['nonce'], $data['cnonce']);
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
// should be: qop = auth
|
|
|
ef5584 |
$a2 = 'AUTHENTICATE:'. $data['digest-uri'];
|
|
|
ef5584 |
|
|
|
ef5584 |
return md5(sprintf('%s:%s:%s:%s:%s:%s', md5($a1), $data['nonce'], $data['nc'], $data['cnonce'], $data['qop'], md5($a2)));
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
/**
|
|
|
ef5584 |
* parse_data like a="b",c="d",... or like a="a, b", c, d="e", f=g,...
|
|
|
ef5584 |
* @param string $data
|
|
|
ef5584 |
* @access public
|
|
|
ef5584 |
* @return array a => b ...
|
|
|
ef5584 |
*/
|
|
|
ef5584 |
function parse_data($data)
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$data = explode(',', $data);
|
|
|
ef5584 |
$pairs = array();
|
|
|
ef5584 |
$key = false;
|
|
|
ef5584 |
|
|
|
ef5584 |
foreach ($data as $pair)
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$dd = strpos($pair, '=');
|
|
|
ef5584 |
|
|
|
ef5584 |
if ($dd)
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$key = trim(substr($pair, 0, $dd));
|
|
|
ef5584 |
$pairs[$key] = trim(trim(substr($pair, $dd + 1)), '"');
|
|
|
ef5584 |
}
|
|
|
ef5584 |
else if (strpos(strrev(trim($pair)), '"') === 0 && $key)
|
|
|
ef5584 |
{
|
|
|
ef5584 |
// We are actually having something left from "a, b" values, add it to the last one we handled.
|
|
|
ef5584 |
$pairs[$key] .= ',' . trim(trim($pair), '"');
|
|
|
ef5584 |
continue;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
return $pairs;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
/**
|
|
|
ef5584 |
* opposite of jabber::parse_data()
|
|
|
ef5584 |
* @param array $data
|
|
|
ef5584 |
* @access public
|
|
|
ef5584 |
* @return string
|
|
|
ef5584 |
*/
|
|
|
ef5584 |
function implode_data($data)
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$return = array();
|
|
|
ef5584 |
foreach ($data as $key => $value)
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$return[] = $key . '="' . $value . '"';
|
|
|
ef5584 |
}
|
|
|
ef5584 |
return implode(',', $return);
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
/**
|
|
|
ef5584 |
* xmlize()
|
|
|
ef5584 |
* @author Hans Anderson
|
|
|
ef5584 |
* @copyright Hans Anderson / http://www.hansanderson.com/php/xml/
|
|
|
ef5584 |
*/
|
|
|
ef5584 |
function xmlize($data, $skip_white = 1, $encoding = 'UTF-8')
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$data = trim($data);
|
|
|
ef5584 |
|
|
|
ef5584 |
if (substr($data, 0, 5) != '
|
|
|
ef5584 |
{
|
|
|
ef5584 |
// mod
|
|
|
ef5584 |
$data = '<root>'. $data . '</root>';
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
$vals = $index = $array = array();
|
|
|
ef5584 |
$parser = xml_parser_create($encoding);
|
|
|
ef5584 |
xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0);
|
|
|
ef5584 |
xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, $skip_white);
|
|
|
ef5584 |
xml_parse_into_struct($parser, $data, $vals, $index);
|
|
|
ef5584 |
xml_parser_free($parser);
|
|
|
ef5584 |
|
|
|
ef5584 |
$i = 0;
|
|
|
ef5584 |
$tagname = $vals[$i]['tag'];
|
|
|
ef5584 |
|
|
|
ef5584 |
$array[$tagname][0]['@'] = (isset($vals[$i]['attributes'])) ? $vals[$i]['attributes'] : array();
|
|
|
ef5584 |
$array[$tagname][0]['#'] = $this->_xml_depth($vals, $i);
|
|
|
ef5584 |
|
|
|
ef5584 |
if (substr($data, 0, 5) != '
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$array = $array['root'][0]['#'];
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
return $array;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
/**
|
|
|
ef5584 |
* _xml_depth()
|
|
|
ef5584 |
* @author Hans Anderson
|
|
|
ef5584 |
* @copyright Hans Anderson / http://www.hansanderson.com/php/xml/
|
|
|
ef5584 |
*/
|
|
|
ef5584 |
function _xml_depth($vals, &$i)
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$children = array();
|
|
|
ef5584 |
|
|
|
ef5584 |
if (isset($vals[$i]['value']))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
array_push($children, $vals[$i]['value']);
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
while (++$i < sizeof($vals))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
switch ($vals[$i]['type'])
|
|
|
ef5584 |
{
|
|
|
ef5584 |
case 'open':
|
|
|
ef5584 |
|
|
|
ef5584 |
$tagname = (isset($vals[$i]['tag'])) ? $vals[$i]['tag'] : '';
|
|
|
ef5584 |
$size = (isset($children[$tagname])) ? sizeof($children[$tagname]) : 0;
|
|
|
ef5584 |
|
|
|
ef5584 |
if (isset($vals[$i]['attributes']))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$children[$tagname][$size]['@'] = $vals[$i]['attributes'];
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
$children[$tagname][$size]['#'] = $this->_xml_depth($vals, $i);
|
|
|
ef5584 |
|
|
|
ef5584 |
break;
|
|
|
ef5584 |
|
|
|
ef5584 |
case 'cdata':
|
|
|
ef5584 |
array_push($children, $vals[$i]['value']);
|
|
|
ef5584 |
break;
|
|
|
ef5584 |
|
|
|
ef5584 |
case 'complete':
|
|
|
ef5584 |
|
|
|
ef5584 |
$tagname = $vals[$i]['tag'];
|
|
|
ef5584 |
$size = (isset($children[$tagname])) ? sizeof($children[$tagname]) : 0;
|
|
|
ef5584 |
$children[$tagname][$size]['#'] = (isset($vals[$i]['value'])) ? $vals[$i]['value'] : array();
|
|
|
ef5584 |
|
|
|
ef5584 |
if (isset($vals[$i]['attributes']))
|
|
|
ef5584 |
{
|
|
|
ef5584 |
$children[$tagname][$size]['@'] = $vals[$i]['attributes'];
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
break;
|
|
|
ef5584 |
|
|
|
ef5584 |
case 'close':
|
|
|
ef5584 |
return $children;
|
|
|
ef5584 |
break;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
return $children;
|
|
|
ef5584 |
}
|
|
|
ef5584 |
}
|
|
|
ef5584 |
|
|
|
ef5584 |
?>
|