get.php

<?php

define('BLARG', 1);
include(__DIR__."/lib/common.php");

$entry = Fetch(Query("select * from {uploadedfiles} where id = {0}", $_GET['id']));
if (!$entry)
	die(__("Unknown file ID."));

if ($entry['deldate'] != 0)
	die(__("No such file."));

$path = DATA_DIR.'uploads/'.$entry['physicalname'];

if(!file_exists($path))
	die(__("No such file."));
	
//Count downloads!
if (!$isBot)
	Query("update {uploadedfiles} set downloads = downloads+1 where id = {0}", $entry['id']);

// TODO detect/store MIME type instead of all that junk?
$fsize = filesize($path);
$parts = pathinfo($entry['filename']);
$ext = strtolower($parts['extension']);
$download = true;

switch ($ext)
{
	case "gif": $ctype="image/gif"; $download = false; break;
	case 'bmp': $path = 'img/nobmp.png'; $fsize = filesize($path);
	case "apng":
	case "png": $ctype="image/png"; $download = false; break;
	case "jpeg":
	case "jpg": $ctype="image/jpg"; $download = false; break;
	case "css": $ctype="text/css"; $download = false; break;
	case "txt": $ctype="text/plain"; $download = false; break;
	case "pdf": $ctype="application/pdf"; $download = false; break;
	case 'mp3': $ctype = 'audio/mpeg'; $download = false; break;
	default: $ctype="application/force-download"; break;
} 

$cachetime = 604800; // 1 week. Should be more than okay. Uploaded files aren't supposed to change.
header("Pragma: public");
header("Expires: 0");
header("Cache-Control: private, post-check={$cachetime}, pre-check=999999999, min-fresh={$cachetime}, max-age={$cachetime}");
header("Content-Type: ".$ctype);
if($download)
	header("Content-Disposition: attachment; filename=\"".addslashes($entry['filename'])."\";");
else
	header("Content-Disposition: filename=\"".addslashes($entry['filename'])."\"");
header("Content-Transfer-Encoding: binary");
header("Content-Length: ".$fsize);

readfile($path);

?>