2012-04-16 15:40:23 -04:00
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<?php
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/*
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Jappix - An open social platform
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This is a PHP BOSH proxy
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-------------------------------------------------
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2012-04-17 19:13:18 -04:00
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This file is dual-licensed under the MIT license (see MIT.txt) and the AGPL license (see jappix/COPYING).
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2012-04-16 15:40:23 -04:00
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Authors: Vanaryon, Leberwurscht
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*/
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// PHP base
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2012-04-23 18:33:04 -04:00
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define('JAPPIX_BASE', './jappix');
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2012-04-16 15:40:23 -04:00
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// Get the configuration
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2012-04-23 18:33:04 -04:00
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require_once('./jappix/php/functions.php');
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require_once('./jappix/php/read-main.php');
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require_once('./jappix/php/read-hosts.php');
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2012-04-16 15:40:23 -04:00
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// Optimize the page rendering
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hideErrors();
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compressThis();
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// Not allowed?
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if(!BOSHProxy()) {
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header('Status: 403 Forbidden', true, 403);
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exit('HTTP/1.1 403 Forbidden');
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}
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// custom BOSH host
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$HOST_BOSH = HOST_BOSH;
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if(isset($_GET['host_bosh']) && $_GET['host_bosh']) {
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$host_bosh = $_GET['host_bosh'];
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if (substr($host_bosh, 0, 7)==="http://" || substr($host_bosh, 0, 8)==="https://") {
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$HOST_BOSH = $host_bosh;
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}
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}
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// OPTIONS method?
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if($_SERVER['REQUEST_METHOD'] == 'OPTIONS') {
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// CORS headers
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header('Access-Control-Allow-Origin: *');
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header('Access-Control-Allow-Methods: GET, POST, OPTIONS');
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header('Access-Control-Allow-Headers: Content-Type');
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header('Access-Control-Max-Age: 31536000');
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exit;
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}
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// Read POST content
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$data = file_get_contents('php://input');
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// POST method?
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if($data) {
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// CORS headers
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header('Access-Control-Allow-Origin: *');
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header('Access-Control-Allow-Headers: Content-Type');
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$method = 'POST';
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}
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// GET method?
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else if(isset($_GET['data']) && $_GET['data'] && isset($_GET['callback']) && $_GET['callback']) {
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$method = 'GET';
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$data = $_GET['data'];
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$callback = $_GET['callback'];
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}
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// Invalid method?
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else {
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header('Status: 400 Bad Request', true, 400);
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exit('HTTP/1.1 400 Bad Request');
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}
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// HTTP headers
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$headers = array('User-Agent: Jappix (BOSH PHP Proxy)', 'Connection: keep-alive', 'Content-Type: text/xml; charset=utf-8', 'Content-Length: '.strlen($data));
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// CURL is better if available
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if(function_exists('curl_init'))
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$use_curl = true;
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else
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$use_curl = false;
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// CURL caused problems for me
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$use_curl = false;
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// CURL stream functions
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if($use_curl) {
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// Initialize CURL
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$connection = curl_init($HOST_BOSH);
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// Set the CURL settings
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curl_setopt($connection, CURLOPT_HEADER, 0);
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curl_setopt($connection, CURLOPT_POST, 1);
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curl_setopt($connection, CURLOPT_POSTFIELDS, $data);
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curl_setopt($connection, CURLOPT_FOLLOWLOCATION, true);
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curl_setopt($connection, CURLOPT_HTTPHEADER, $headers);
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curl_setopt($connection, CURLOPT_VERBOSE, 0);
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curl_setopt($connection, CURLOPT_CONNECTTIMEOUT, 30);
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curl_setopt($connection, CURLOPT_TIMEOUT, 30);
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curl_setopt($connection, CURLOPT_SSL_VERIFYHOST, 0);
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curl_setopt($connection, CURLOPT_SSL_VERIFYPEER, 0);
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curl_setopt($connection, CURLOPT_RETURNTRANSFER, 1);
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// Get the CURL output
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$output = curl_exec($connection);
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}
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// Built-in stream functions
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else {
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// HTTP parameters
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$parameters = array('http' => array(
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'method' => 'POST',
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'content' => $data
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)
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);
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$parameters['http']['header'] = $headers;
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// Change default timeout
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ini_set('default_socket_timeout', 30);
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// Create the connection
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$stream = @stream_context_create($parameters);
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$connection = @fopen($HOST_BOSH, 'rb', false, $stream);
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// Failed to connect!
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if($connection == false) {
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header('Status: 502 Proxy Error', true, 502);
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exit('HTTP/1.1 502 Proxy Error');
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}
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// Allow stream blocking to handle incoming BOSH data
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@stream_set_blocking($connection, true);
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// Get the output content
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$output = @stream_get_contents($connection);
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}
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// Cache headers
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header('Cache-Control: no-cache, must-revalidate');
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header('Expires: Mon, 26 Jul 1997 05:00:00 GMT');
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// POST output
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if($method == 'POST') {
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// XML header
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header('Content-Type: text/xml; charset=utf-8');
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if(!$output)
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echo('<body xmlns=\'http://jabber.org/protocol/httpbind\' type=\'terminate\'/>');
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else
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echo($output);
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}
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// GET output
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if($method == 'GET') {
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// JSON header
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header('Content-type: application/json');
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// Encode output to JSON
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$json_output = json_encode($output);
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if(($output == false) || ($output == '') || ($json_output == 'null'))
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echo($callback.'({"reply":"<body xmlns=\'http:\/\/jabber.org\/protocol\/httpbind\' type=\'terminate\'\/>"});');
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else
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echo($callback.'({"reply":'.$json_output.'});');
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}
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// Close the connection
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if($use_curl)
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curl_close($connection);
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else
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@fclose($connection);
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?>
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