Filesonic Stream Script

<?php
if(!empty($_GET['dl'])){
    /***************************\
    #    Filesonic stream shit   #
    #    Robin@houtevelts.com    #
    #    http://file-remoter.com #
    #    25-dec-2011             #
    \****************************/

    $username = $_GET['username'];
    $password = $_GET['password'];

    $url = $_GET['url'];

    $regex = '#/file/(.*?)(/|$)#';
    $matches = array();
    preg_match($regex, $url, $matches);
    $id = str_replace('/', '-', $matches[1]);
    unset($matches,$regex);

    $fileinfo = file_get_contents('http://api.filesonic.com/link?method=getInfo&format=json&ids='.$id);
    $fileinfo = json_decode($fileinfo,1);
    $fileinfo = $fileinfo['FSApi_Link']['getInfo'];

    if($fileinfo['status'] != 'success')
        die('API Error! mofo');

    $fileinfo = $fileinfo['response']['links'][0];

    if($fileinfo['status'] != 'AVAILABLE')
        die('File is no moar!');


    $filename = $fileinfo['filename'];
    $filesize = $fileinfo['size'];


    $url = file_get_contents('http://api.filesonic.com/link?method=getDownloadLink&u='.$username.'&p='.$password.'&ids='.$id);
    $url = json_decode($url,1);
    $url = $url['FSApi_Link']['getDownloadLink'];

    if($url['status'] != 'success')
        die('API Error! mofo');

    $url = $url['response']['links'];
    $url = end($url);
    $url = $url['url'];


    //The actual shit
    $url = $url;
    $host = parse_url($url);
    $headers = '';
    $rn = "\r\n";

    $headers .= 'GET '.$host['path'] . ($host['query'] == true ? '?'.$host['query'] : '').' HTTP/1.1' . $rn;
    $headers .= 'Host: '.$host['host'] . $rn;
    $headers .= 'Accept: */*' . $rn . $rn;

    $fs = fsockopen($host['host'],80,$errno,$errstr,30);
    if($errno||$errstr){
        echo 'ERROR: '.$errstr;
        @fclose($fs);
        exit;
    }
    fwrite($fs,$headers);
    unset($headers);

    $header = '';

    do {
        $header .= fgets ( $fs, 16384 );
    }while(strpos($header,$rn.$rn) === false);

    /*
        $header now contains the received headers
        You could fetch the filesize etc from it etc, but we already know it.
        But since I'm such a nice guy:
    */
    $filesize = preg_match('#Content-Length: (\d+)#',$header,$match);
    $filesize = trim($match[1]);
    unset($match,$header);

    header('Content-Length: '.$filesize);
    header('Content-Disposition: attachment; filename="' . $filename . '"');
    header('Connection: Close');

    while (!feof($fs)){
        echo fread($fs,8192);
    }
    fclose($fs);

}else{
?>
    <html>
        <head>
            <title>Filesonic direct link creator or whatever you want to use this for</title>
        </head>
        <body>
            <form action="" method="GET">
                <input type="hidden" name="dl" value="1" />
                Filesonic Username: <input type="text" name="username" />
                Filesonic Password: <input type="text" name="password" />
                <br />
                Url: <input type="text" name="url" />
                <br />

                <input type="submit" value="Download" />
            </form>
        </body>
    </html>
<?php
}
?>