/**
 * Author: Avlesh Singh
 * Usage and documentation: http://apps.avlesh.com/JsonRequest
 * avlesh@gmail.com: for bugs, suggestions and improvements
 */

<?php
	Header('Content-type: application/x-javascript');
	function parse_http_headers($rawheaders){
		$headers = Array();
		$lines = explode("\n",$rawheaders);
		if(substr($lines[0],0,5) == 'HTTP/'){
			preg_match('/HTTP\/.* ([0-9]+) .*/', $rawheaders, $status);
			$headers['Status'] = $status[1];
			$response = array_shift($lines);
		}
		foreach($lines as $line){
			preg_match("/^(.+?):\s+(.+)$/",trim($line),$matches);
			if(isset($matches) && isset($matches[1])){
				$headers[$matches[1]] = $matches[2];
				unset($matches);
			}
		}
		return $headers;
	}

	require_once '/json/JSON.php';
	$json = new Services_JSON();

	$ch = curl_init();
	curl_setopt($ch, CURLOPT_URL, $_REQUEST['url']);
	curl_setopt($ch, CURLOPT_HEADER, 1);
	curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "HEAD");
	curl_setopt($ch, CURLOPT_NOBODY, 1);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
	//curl_setopt($ch, CURLOPT_PROXY, "my-proxy-server-address"); 
	$raw = curl_exec($ch);
	$encoded = $json->encode(parse_http_headers($raw), true);
	curl_close($ch);
	echo $_REQUEST['cb']."(".$encoded.");";
?>