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4307
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leinfelder
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<?php
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/*
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License: LGPL as per: http://www.gnu.org/copyleft/lesser.html
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$Id: proxy.php 3650 2007-11-28 00:26:06Z rdewit $
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$Name$
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*/
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////////////////////////////////////////////////////////////////////////////////
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// Description:
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// Script to redirect the request http://host/proxy.php?url=http://someUrl
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// to http://someUrl .
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//
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// This script can be used to circumvent javascript's security requirements
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// which prevent a URL from an external web site being called.
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//
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// Author: Nedjo Rogers
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////////////////////////////////////////////////////////////////////////////////
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// read in the variables
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if(array_key_exists('HTTP_SERVERURL', $_SERVER)){
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$onlineresource=$_SERVER['HTTP_SERVERURL'];
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}else{
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$onlineresource=$_REQUEST['url'];
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}
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$parsed = parse_url($onlineresource);
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$host = @$parsed["host"];
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$path = @$parsed["path"] . "?" . @$parsed["query"];
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if(empty($host)) {
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$host = "localhost";
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}
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$port = @$parsed['port'];
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if(empty($port)){
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$port="80";
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}
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$contenttype = @$_REQUEST['contenttype'];
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if(empty($contenttype)) {
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$contenttype = "text/xml";
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}
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$data = @$GLOBALS["HTTP_RAW_POST_DATA"];
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// define content type
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header("Content-type: " . $contenttype);
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if(empty($data)) {
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$result = send_request();
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}
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else {
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// post XML
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$posting = new HTTP_Client($host, $port, $data);
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$posting->set_path($path);
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$result = $posting->send_request();
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}
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// strip leading text from result and output result
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$len=strlen($result);
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$pos = strpos($result, "<");
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if($pos > 1) {
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$result = substr($result, $pos, $len);
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}
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//$result = str_replace("xlink:","",$result);
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echo $result;
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// define class with functions to open socket and post XML
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// from http://www.phpbuilder.com/annotate/message.php3?id=1013274 by Richard Hundt
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class HTTP_Client {
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var $host;
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var $path;
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var $port;
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var $data;
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var $socket;
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var $errno;
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var $errstr;
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var $timeout;
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var $buf;
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var $result;
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var $agent_name = "MyAgent";
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//Constructor, timeout 30s
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function HTTP_Client($host, $port, $data, $timeout = 30) {
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$this->host = $host;
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$this->port = $port;
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$this->data = $data;
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$this->timeout = $timeout;
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}
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//Opens a connection
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function connect() {
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$this->socket = fsockopen($this->host,
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$this->port,
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$this->errno,
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$this->errstr,
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$this->timeout
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);
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if(!$this->socket)
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return false;
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else
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return true;
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}
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//Set the path
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function set_path($path) {
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$this->path = $path;
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}
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//Send request and clean up
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function send_request() {
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if(!$this->connect()) {
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return false;
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}
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else {
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$this->result = $this->request($this->data);
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return $this->result;
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}
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}
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function request($data) {
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$this->buf = "";
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fwrite($this->socket,
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"POST $this->path HTTP/1.0\r\n".
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"Host:$this->host\r\n".
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"User-Agent: $this->agent_name\r\n".
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"Content-Type: application/xml\r\n".
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"Content-Length: ".strlen($data).
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"\r\n".
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"\r\n".$data.
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"\r\n"
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);
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while(!feof($this->socket))
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$this->buf .= fgets($this->socket, 2048);
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$this->close();
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return $this->buf;
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}
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function close() {
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fclose($this->socket);
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}
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}
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function send_request() {
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global $onlineresource;
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$ch = curl_init();
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$timeout = 5; // set to zero for no timeout
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// fix to allow HTTPS connections with incorrect certificates
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curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
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curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
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curl_setopt ($ch, CURLOPT_URL,$onlineresource);
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curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
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curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
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curl_setopt ($ch, CURLOPT_ENCODING , "gzip, deflate");
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$file_contents = curl_exec($ch);
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curl_close($ch);
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$lines = array();
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$lines = explode("\n", $file_contents);
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if(!($response = $lines)) {
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echo "Unable to retrieve file '$service_request'";
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}
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$response = implode("",$response);
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return $response;
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}
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?>
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