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Setting up apache to serve PHP when an MP3 file is requested

Answer 1

+1 A:

You could simply make it so that you have a mod_rewrite rule to run every request for music/*.mp3 through your mp3.php file.

For example, something like this

RewriteEngine on
RewriteRule ^/music/(.*\.mp3)    /music/mp3.php?file=$1 [L]

mp3.php can then pick up the requested file from $_GET['file'], but if you go with this approach I recommend you sanity check the filename, to ensure it only references a file in the desired directory.

//ensure filename just uses alphanumerics and underscore
if (preg_match('/^[a-z0-9_]+\.mp3$/i', $_GET['file']))
{
    //check file exists and serve it

    $track=$_SERVER['DOCUMENT_ROOT'].'/music/'.$_GET['file'];
    if(file_exists($track))
    {
        header("Content-Type: audio/mpeg");
        header('Content-length: ' . filesize($track));
        //insert any other required headers...

        //send data
        readfile($track);
    }
    else
    {
        //filename OK, but just not here
        header("HTTP/1.0 404 Not Found");
    }

}
else
{
    //bad request
    header("HTTP/1.0 400 Forbidden");
}

Paul Dixon 2009-10-04 16:30:24

That works too, but the other answer was... purer I guess. Although that did remind me to use .htaccess to prevent people accessing the files directly. Cheers.

gargantaun 2009-10-04 16:41:09

This solution lets you have .mp3 URLs, but allows you to intercept those requests with some PHP. It's not quite what you wanted, but I started it so I finished!

Paul Dixon 2009-10-04 16:45:00

Good effort. Someone somewhere will find that useful.

gargantaun 2009-10-04 17:17:08

Answer 2

+3 A:

There are some errors in your code:

A resource can only have one single Content-Type value. So you have to decide what media type you want to use. I suggest audio/mpeg.
You forgot to specify the disposition in Content-Disposition. If you just want give a filename and don’t want to change the disposition, use the default value inline.

The rest looks fine. But I would also send the 404 status code if the file cannot be found.

$track = "lilly.mp3";

if (file_exists($track)) {
    header("Content-Type: audio/mpeg");
    header('Content-Length: ' . filesize($track));
    header('Content-Disposition: inline; filename="lilly.mp3"');
    header('X-Pad: avoid browser bug');
    header('Cache-Control: no-cache');
    readfile($track);
    exit;
} else {
    header($_SERVER['SERVER_PROTOCOL'].' 404 Not Found', true, 404);
    echo "no file";
}

Gumbo 2009-10-04 16:31:36

Genius! Inline did the trick and I've tidied up the Content-Type and I'm now sending a 404.

gargantaun 2009-10-04 16:39:38

Answer 3

+1 A:

Use the header x-sendfile instead of readfile for better performanse.

http://john.guen.in/past/2007/4/17/send%5Ffiles%5Ffaster%5Fwith%5Fxsendfile/

wojtekk 2009-10-04 19:15:50

Answer 4

A:

This one works for me (in .htaccess):

<FilesMatch "mp3$">
    SetHandler application/x-httpd-php5
</FilesMatch>

djn 2009-10-06 00:34:12

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