Question

I am writing a script that serves users downloads using my Megaupload premium account. This is the method that I’m using to download the Megaupload files:

public function download_file($link)
{
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $link);
    curl_setopt($ch, CURLOPT_COOKIEFILE, dirname(__FILE__) . "/cookies/megaupload.txt");
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    return curl_exec($ch);
    curl_close($ch);
}

And this is how it’s being called in index.php:

readfile($megaupload->download_file("http://www.megaupload.com/?d=PXNDZQHM"));

What I basically want this to do is serve the download to the user and stream the download through my server. I do not want the file to be saved to my server and then offered to the user.

But obviously, the solution above won’t work. I get this error:

Warning: readfile() [function.readfile]: Filename cannot be empty in C:\xampp\htdocs\index.php on line 8

I need to use cURL for this because I need to request the download using a cookie file (/cookies/megaupload.txt).

Can anyone think of a working way to do this? Cheers.

Answer 1

Yes, exactly as it says, readfile expects a filename, and you’re giving it a string of the curl result. Just use echo after setting the proper headers:

echo $megaupload->download_file("http://www.megaupload.com/?d=PXNDZQHM");

EDIT: Also you need to do some basic checks that you got something back:

public function download_file($link)
{
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $link);
    curl_setopt($ch, CURLOPT_COOKIEFILE, dirname(__FILE__) . "/cookies/megaupload.txt");
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $result = curl_exec($ch);
    // close before you return
    curl_close($ch);
    return $result;
}

Then:

$filecontents = $megaupload->download_file("http://www.megaupload.com/?d=PXNDZQHM");
if($filecontents) {
  echo $filecontents;
}
else {
  die("Yikes, nothing here!");
}