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c7cdcc588a
xmpphp/XMPPHP/BOSH.php
Diogo Cordeiro c7cdcc588a Modern version of XMPPHP extlib 
Original XMPPHP is no longer maintained
Therefore I've done some optimizations and imported some commits from birkner and zorn-v forks.
None of the forks really looked ready to be adopted...
2019-06-19 03:32:32 +01:00

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PHP
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<?php
/**
* XMPPHP: The PHP XMPP Library
* Copyright (C) 2008 Nathanael C. Fritz
* This file is part of SleekXMPP.
*
* XMPPHP is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* XMPPHP is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with XMPPHP; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* @category xmpphp
* @package XMPPHP
* @author Nathanael C. Fritz <JID: fritzy@netflint.net>
* @author Stephan Wentz <JID: stephan@jabber.wentz.it>
* @author Michael Garvin <JID: gar@netflint.net>
* @author Alexander Birkner (https://github.com/BirknerAlex)
* @author zorn-v (https://github.com/zorn-v/xmpphp/)
* @author GNU social
* @copyright 2008 Nathanael C. Fritz
*/
namespace XMPPHP;
use SimpleXMLElement;
/** XMPPHP_XMLStream */
require_once __DIR__ . "/XMPP.php";
/**
* XMPPHP BOSH
*
* @property int lat
* @package XMPPHP
* @author Nathanael C. Fritz <JID: fritzy@netflint.net>
* @author Stephan Wentz <JID: stephan@jabber.wentz.it>
* @author Michael Garvin <JID: gar@netflint.net>
* @copyright 2008 Nathanael C. Fritz
* @version $Id$
*/
class BOSH extends XMPP
{
/**
* @var integer
*/
protected $rid;
/**
* @var string
*/
protected $sid;
/**
* @var string
*/
protected $http_server;
/**
* @var array
*/
protected $http_buffer = array();
/**
* @var string
*/
protected $session = false;
/**
* @var integer
*/
protected $inactivity;
/**
* Connect
*
* @param $server
* @param $wait
* @param $session
* @throws Exception
* @throws Exception
*/
public function connect($server = null, $wait = '1', $session = false)
{
if (is_null($server)) {
// If we aren't given the server http url, try and guess it
$port_string = ($this->port AND $this->port != 80) ? ':' . $this->port : '';
$this->http_server = 'http://' . $this->host . $port_string . '/http-bind/';
} else {
$this->http_server = $server;
}
$this->use_encryption = false;
$this->session = $session;
$this->rid = 3001;
$this->sid = null;
$this->inactivity = 0;
if ($session) {
$this->loadSession();
}
if (!$this->sid) {
$body = $this->__buildBody();
$body->addAttribute('hold', '1');
$body->addAttribute('to', $this->server);
$body->addAttribute('route', 'xmpp:' . $this->host . ':' . $this->port);
$body->addAttribute('secure', 'true');
$body->addAttribute('xmpp:version', '1.0', 'urn:xmpp:xbosh');
$body->addAttribute('wait', strval($wait));
$body->addAttribute('ack', '1');
$body->addAttribute('xmlns:xmpp', 'urn:xmpp:xbosh');
$buff = '<stream:stream xmlns="jabber:client" xmlns:stream="http://etherx.jabber.org/streams">';
xml_parse($this->parser, $buff, false);
$response = $this->__sendBody($body);
$rxml = new SimpleXMLElement($response);
$this->sid = $rxml['sid'];
$this->inactivity = $rxml['inactivity'];
} else {
$buff = '<stream:stream xmlns="jabber:client" xmlns:stream="http://etherx.jabber.org/streams">';
xml_parse($this->parser, $buff, false);
}
}
/**
* Load session
*
*/
public function loadSession()
{
if ($this->session == 'ON_FILE') {
// Session not started so use session_file
$session_file = $this->getSessionFile();
// manage multiple accesses
if (!file_exists($session_file)) {
file_put_contents($session_file, '');
}
$session_file_fp = fopen($session_file, 'r');
flock($session_file_fp, LOCK_EX);
$session_serialized = file_get_contents($session_file, null, null, 6);
flock($session_file_fp, LOCK_UN);
fclose($session_file_fp);
$this->log->log('SESSION: reading ' . $session_serialized . ' from ' . $session_file, Log::LEVEL_VERBOSE);
if ($session_serialized != '') {
$_SESSION['XMPPHP_BOSH'] = unserialize($session_serialized);
}
}
if (isset($_SESSION['XMPPHP_BOSH']['inactivity'])) {
$this->inactivity = $_SESSION['XMPPHP_BOSH']['inactivity'];
}
$this->lat = (time() - (isset($_SESSION['XMPPHP_BOSH']['lat']))) ? $_SESSION['XMPPHP_BOSH']['lat'] : 0;
if ($this->lat < $this->inactivity) {
if (isset($_SESSION['XMPPHP_BOSH']['RID'])) {
$this->rid = $_SESSION['XMPPHP_BOSH']['RID'];
}
if (isset($_SESSION['XMPPHP_BOSH']['SID'])) {
$this->sid = $_SESSION['XMPPHP_BOSH']['SID'];
}
if (isset($_SESSION['XMPPHP_BOSH']['authed'])) {
$this->authed = $_SESSION['XMPPHP_BOSH']['authed'];
}
if (isset($_SESSION['XMPPHP_BOSH']['basejid'])) {
$this->basejid = $_SESSION['XMPPHP_BOSH']['basejid'];
}
if (isset($_SESSION['XMPPHP_BOSH']['fulljid'])) {
$this->fulljid = $_SESSION['XMPPHP_BOSH']['fulljid'];
}
}
}
/**
* Get the session file
*
*/
public function getSessionFile()
{
return sys_get_temp_dir() . '/' . $this->user . '_' . $this->server . '_session';
}
/**
* Build body
*
* @param $sub
* @return SimpleXMLElement|string
*/
public function __buildBody($sub = null)
{
$xml = '<body xmlns="http://jabber.org/protocol/httpbind" xmlns:xmpp="urn:xmpp:xbosh" />';
$xml = new SimpleXMLElement($xml);
$xml->addAttribute('content', 'text/xml; charset=utf-8');
$xml->addAttribute('rid', $this->rid);
$this->rid++;
if ($this->sid) {
$xml->addAttribute('sid', $this->sid);
}
$xml->addAttribute('xml:lang', 'en');
if ($sub !== null) {
// Ok, so simplexml is lame
$parent = dom_import_simplexml($xml);
$content = dom_import_simplexml($sub);
$child = $parent->ownerDocument->importNode($content, true);
$parent->appendChild($child);
$xml = simplexml_import_dom($parent);
}
return $xml;
}
/**
* Send body
*
* @param $body
* @param $recv
* @return bool|string
* @throws Exception
* @throws Exception
*/
public function __sendBody($body = null, $recv = true)
{
if (!$body) {
$body = $this->__buildBody();
}
$output = '';
$header = array('Accept-Encoding: gzip, deflate', 'Content-Type: text/xml; charset=utf-8');
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $this->http_server);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $body->asXML());
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
curl_setopt($ch, CURLOPT_VERBOSE, 0);
if ($recv) {
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$output = curl_exec($ch);
if (curl_getinfo($ch, CURLINFO_HTTP_CODE) != '200') {
throw new Exception('Wrong response from server!');
}
$this->http_buffer[] = $output;
}
curl_close($ch);
return $output;
}
/**
* Process
*
* @param $null1
* @param $null2
*
* null params are not used and just to statify Strict Function Declaration
* @return bool
* @throws Exception
* @throws Exception
*/
public function __process($null1 = null, $null2 = null)
{
if ($this->http_buffer) {
$this->__parseBuffer();
} else {
$this->__sendBody();
$this->__parseBuffer();
}
$this->saveSession();
return true;
}
public function __parseBuffer()
{
while ($this->http_buffer) {
$idx = key($this->http_buffer);
$buffer = $this->http_buffer[$idx];
unset($this->http_buffer[$idx]);
if ($buffer) {
$xml = new SimpleXMLElement($buffer);
$children = $xml->xpath('child::node()');
foreach ($children as $child) {
$buff = $child->asXML();
$this->log->log('RECV: ' . $buff, Log::LEVEL_VERBOSE);
xml_parse($this->parser, $buff, false);
}
}
}
}
/**
* Save session
*
*/
public function saveSession()
{
$_SESSION['XMPPHP_BOSH']['RID'] = (string)$this->rid;
$_SESSION['XMPPHP_BOSH']['SID'] = (string)$this->sid;
$_SESSION['XMPPHP_BOSH']['authed'] = (boolean)$this->authed;
$_SESSION['XMPPHP_BOSH']['basejid'] = (string)$this->basejid;
$_SESSION['XMPPHP_BOSH']['fulljid'] = (string)$this->fulljid;
$_SESSION['XMPPHP_BOSH']['inactivity'] = (string)$this->inactivity;
$_SESSION['XMPPHP_BOSH']['lat'] = (string)time();
if ($this->session == 'ON_FILE') {
$session_file = $this->getSessionFile();
$session_file_fp = fopen($session_file, 'r');
flock($session_file_fp, LOCK_EX);
// <?php prefix used to mask the content of the session file
$session_serialized = '<?php ' . serialize($_SESSION);
file_put_contents($session_file, $session_serialized);
flock($session_file_fp, LOCK_UN);
fclose($session_file_fp);
}
}
/**
* Process
*
* @param $msg
* @param $null
*
* null param are not used and just to statify Strict Function Declaration
* @throws Exception
* @throws Exception
*/
public function send($msg, $null = null)
{
$this->log->log('SEND: ' . $msg, Log::LEVEL_VERBOSE);
$msg = new SimpleXMLElement($msg);
$this->__sendBody($this->__buildBody($msg), true);
}
/**
* Reset
*
* @throws Exception
*/
public function reset()
{
$this->xml_depth = 0;
unset($this->xmlobj);
$this->xmlobj = array();
$this->setupParser();
$body = $this->__buildBody();
$body->addAttribute('to', $this->host);
$body->addAttribute('xmpp:restart', 'true', 'urn:xmpp:xbosh');
$buff = '<stream:stream xmlns="jabber:client" xmlns:stream="http://etherx.jabber.org/streams">';
$response = $this->__sendBody($body);
$this->been_reset = true;
xml_parse($this->parser, $buff, false);
}
/**
* Disconnect
*
* @throws Exception
*/
public function disconnect()
{
parent::disconnect();
if ($this->session == 'ON_FILE') {
unlink($this->getSessionFile());
} else {
$keys = array('RID', 'SID', 'authed', 'basejid', 'fulljid', 'inactivity', 'lat');
foreach ($keys as $key) {
unset($_SESSION['XMPPHP_BOSH'][$key]);
}
}
}
}
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