2018-03-19-php-curl2.md

<?php

    if ($_GET['p'])
    {
        $tUrl = $_GET['p']; 
        $rUrl = $_GET['r']; //Referer
        if ( empty($rUrl) ) {
            $rUrl = $tUrl;
        }
        $path_parts = pathinfo($tUrl);
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $tUrl);
        curl_setopt($ch, CURLOPT_REFERER, $rUrl);
        curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 2.0.50727; .NET CLR 1.1.4322; .NET CLR 3.0.04506.30) '); 
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);
        curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
        curl_setopt($ch, CURLOPT_HEADER, false);
        $f = curl_exec($ch);
        curl_close($ch);

        $len = strlen($f);

        header('Content-Description: File Transfer');
        header('Content-Type: application/octet-stream');
        header("Content-Disposition: attachment; filename=".$path_parts['basename']);
        header('Content-Transfer-Encoding: binary');
        header('Expires: 0');
        header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
        header('Pragma: public');
        header('Content-Length: ' .$len);
        echo ($f);
    }