<?php

$referer = $_SERVER['HTTP_REFERER'];

$refpos = strpos($referer, 'prettydiff.com');

if ($refpos === 0 || $refpos === 7 || $refpos === 11) {

$x = $_GET['x'];

//$r = file_get_contents($x);

//echo($r);

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $x);

curl_setopt($ch, CURLOPT_HEADER, 0);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

$result = curl_exec($ch);

curl_close($ch);

header("Content-type: text/plain;charset=UTF-8");

echo($result);

} else {

header("HTTP/1.1 301 Moved Permanently");

header("Location: http://prettydiff.com/");

}

?>