proxy.php

<?php
        if(!isset($_SERVER['PROXY_PASS'])) die('Security error');
        $request  = $_SERVER["REQUEST_METHOD"]." http://".$_SERVER["HTTP_HOST"].$_SERVER["REQUEST_URI"]." HTTP/1.0\n";
        $request .= "Host: ".$_SERVER["HTTP_HOST"]."\n";
        if(isset($_SERVER['HTTP_ACCEPT'])) $request .= "Accept: ".$_SERVER["HTTP_ACCEPT"]."\n";
        if(count($_COOKIE)) {
                $cookies = array();
                foreach($_COOKIE as $k=>$v) $cookies[] = URLEncode($k).'='.URLEncode($v);
                $request .= "Cookie: ".implode('; ',$cookies)."\n";
        }
        if(isset($_SERVER['HTTP_USER_AGENT'])) $request .= "User-Agent: ".$_SERVER["HTTP_USER_AGENT"]."\n";
        if(isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) $request .= "Accept-Language: ".$_SERVER["HTTP_ACCEPT_LANGUAGE"]."\n";
        if(isset($_SERVER['HTTP_ACCEPT_ENCODING'])) $request .= "Accept-Encoding: ".$_SERVER["HTTP_ACCEPT_ENCODING"]."\n";
        if($_SERVER['REQUEST_METHOD']=='POST'){
                if(isset($_SERVER['HTTP_CONTENT_TYPE'])) $request .= "Content-Type: ".$_SERVER["HTTP_CONTENT_TYPE"]."\n";
                $post_data = file_get_contents("php://input");
                $request .= "Content-Length: ".strlen($post_data)."\n";
                $request .= "\n";
                $request .= $post_data;
                $request .= "\n";
        } else {
                $request .= "\n";
        }
        $proxy = explode(':',$_SERVER['PROXY_PASS']);
        $port = array_pop($proxy);
        $host = implode(':',$proxy);
        $sock = fsockopen($host,$port,$s,$s,3);
        fwrite($sock,$request);
        while($p = fread($sock,255)){
                $ret .= $p;
        }

        $ret = explode("\n",$ret);
        while(($h = trim(array_shift($ret))) != ""){
                if(substr($h,0,6)!="Proxy-")
                        Header($h);
        }
        echo implode("\n",$ret);