PHP Downloading-script

Hello everyone,

I don't know where to put this, but perhabs somebody can help me. I wrote this Downloadingscript and it does work, when the urls are like this:

HTML:

<a href="download.php?location=images/test.jpg">link</a>

but not like this

HTML:

<a href="download.php?location=http://www.kh-legacy.net/images/test.jpg">link</a>

I need the second version because some downloads are at for example imagehack and photobucket. What I have to change so that the second link-example does work, too? Here's the script:

PHP:

<?
$_GET['location'] = $location;

function download_data($file,$download_speed = 256)
{
    if(file_exists($file)) /* Existiert Datei Ã¼berhaupt? */
    {
        if(is_readable($file)) /* Kann sie auch gelesen werden? */
        {
        $size_of_file = filesize($file); /* Größe der Datei */

        $extension_of_file = strtolower(substr(strrchr($file,"."),0)); /* Datei-Endung filtern */

        $name_of_file = str_replace(" ","%20",basename($file)); /* Leerzeichen ersetzen */

        header("HTTP/1.1 200 OK");

        header("Expires: 0"); /* KEIN cachen */
        header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
        header("Cache-Control: private",FALSE);
        header("Pragma: public");
        header("Content-Description: File Transfer"); /* Download eben xD */
        header("Content-Transfer-Encoding: binary"); /* Uebertragungs-Art */

            switch(TRUE)
            {
                case($extension_of_file == ".exe"):
                {
                $content_type = "application/octet-stream";
                break;
                }

                case($extension_of_file == ".zip"):
                {
                $content_type = "application/zip";
                break;
                }

                case($extension_of_file == ".rar"):
                {
                $content_type = "application/rar";
                break;
                }

                case($extension_of_file == ".doc"):
                {
                $content_type = "application/msword";
                break;
                }

                case($extension_of_file == ".xls"):
                {
                $content_type = "application/vnd.ms-excel";
                break;
                }

                case($extension_of_file == ".ppt"):
                {
                $content_type = "application/vnd.ms-powerpoint";
                break;
                }

                case($extension_of_file == ".gif"):
                {
                $content_type = "image/gif";
                break;
                }

                case($extension_of_file == ".png"):
                {
                $content_type = "image/png";
                break;
                }

                case($extension_of_file == ".jpg" or $extension_of_file == ".jpeg"):
                {
                $content_type = "image/jpg";
                break;
                }

                case($extension_of_file == ".mp3"):
                {
                $content_type = "audio/mpeg";
                break;
                }

                case($extension_of_file == ".wav"):
                {
                $content_type = "audio/x-wav";
                break;
                }

                case($extension_of_file == ".wma"):
                {
                $content_type = "audio/wma";
                break;
                }

                case($extension_of_file == ".mpg" or $extension_of_file == ".mpeg" or $extension_of_file == ".mpe"):
                {
                $content_type = "video/mpeg";
                break;
                }

                case($extension_of_file == ".mov"):
                {
                $content_type = "video/quicktime";
                break;
                }

                case($extension_of_file == ".avi"):
                {
                $content_type = "video/x-msvideo";
                break;
                }

                default:
                {
                $content_type = "application/force-download";
                }
            }

        header("Content-Type: " . $content_type);
        header("Content-Length: " . $size_of_file);
        header("Content-Disposition: attachment; filename=\"" . $name_of_file ."\"");

        $copied_size = 0;

        $handler = @fopen($file,"rb");

            while(!feof($handler) and !connection_aborted())
            {
            set_time_limit(0);

            $part_of_file = fread($handler,round(($download_speed * 102.4),0));

            echo $part_of_file;

            ob_flush();
            flush();

            $copied_size = $copied_size + strlen($part_of_file);

            usleep(100000);
            }

        fclose($handler);

            if($copied_size == $size_of_file)
            {
            $download_successfuly = TRUE;
            }

            else
            {
            $download_successfuly = FALSE;
            }

        $error = FALSE;
        }

        else
        {
        $error = "Die angeforderte Datei existiert zwar, ist aber nicht zum Download freigegeben!";
        }
    }

    else
    {
    $error = "Die angeforderte Datei konnte nicht gefunden werden!";
    }

return array($error,$copied_size,$download_successfuly);
}

   download_data("$location");

    if($error) /* <- Gucken, ob ein Fehler aufgetaucht ist, wenn js... */
    {
    echo $error; /* <- ...diesen Fehler ausgeben... */
    }
?>

Thanks!
MoD

 

<?
$_GET['location'] = $location;

function download_data($file,$download_speed = 256)
{
if(file_exists($file)) /* Existiert Datei überhaupt? */
{
if(is_readable($file)) /* Kann sie auch gelesen werden? */
{
$size_of_file = filesize($file); /* Größe der Datei */

$extension_of_file = strtolower(substr(strrchr($file,"."),0)); /* Datei-Endung filtern */

$name_of_file = str_replace(" ","%20",basename($file)); /* Leerzeichen ersetzen */

header("HTTP/1.1 200 OK");

header("Expires: 0"); /* KEIN cachen */
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: private",FALSE);
header("Pragma: public");
header("Content-Description: File Transfer"); /* Download eben xD */
header("Content-Transfer-Encoding: binary"); /* Uebertragungs-Art */

switch(TRUE)
{
case($extension_of_file == ".exe"):
{
$content_type = "application/octet-stream";
break;
}

case($extension_of_file == ".zip"):
{
$content_type = "application/zip";
break;
}

case($extension_of_file == ".rar"):
{
$content_type = "application/rar";
break;
}

case($extension_of_file == ".doc"):
{
$content_type = "application/msword";
break;
}

case($extension_of_file == ".xls"):
{
$content_type = "application/vnd.ms-excel";
break;
}

case($extension_of_file == ".ppt"):
{
$content_type = "application/vnd.ms-powerpoint";
break;
}

case($extension_of_file == ".gif"):
{
$content_type = "image/gif";
break;
}

case($extension_of_file == ".png"):
{
$content_type = "image/png";
break;
}

case($extension_of_file == ".jpg" or $extension_of_file == ".jpeg"):
{
$content_type = "image/jpg";
break;
}

case($extension_of_file == ".mp3"):
{
$content_type = "audio/mpeg";
break;
}

case($extension_of_file == ".wav"):
{
$content_type = "audio/x-wav";
break;
}

case($extension_of_file == ".wma"):
{
$content_type = "audio/wma";
break;
}

case($extension_of_file == ".mpg" or $extension_of_file == ".mpeg" or $extension_of_file == ".mpe"):
{
$content_type = "video/mpeg";
break;
}

case($extension_of_file == ".mov"):
{
$content_type = "video/quicktime";
break;
}

case($extension_of_file == ".avi"):
{
$content_type = "video/x-msvideo";
break;
}

default:
{
$content_type = "application/force-download";
}
}

header("Content-Type: " . $content_type);
header("Content-Length: " . $size_of_file);
header("Content-Disposition: attachment; filename=\"" . $name_of_file ."\"");

$copied_size = 0;

$handler = @fopen($file,"rb");

while(!feof($handler) and !connection_aborted())
{
set_time_limit(0);

$part_of_file = fread($handler,round(($download_speed * 102.4),0));

echo $part_of_file;

ob_flush();
flush();

$copied_size = $copied_size + strlen($part_of_file);

usleep(100000);
}

fclose($handler);

if($copied_size == $size_of_file)
{
$download_successfuly = TRUE;
}

else
{
$download_successfuly = FALSE;
}

$error = FALSE;
}

else
{
$error = "Die angeforderte Datei existiert zwar, ist aber nicht zum Download freigegeben!";
}
}

else
{
$error = "Die angeforderte Datei konnte nicht gefunden werden!";
}

return array($error,$copied_size,$download_successfuly);
}

download_data("$location");

if($error) /* <- Gucken, ob ein Fehler aufgetaucht ist, wenn js... */
{
echo $error; /* <- ...diesen Fehler ausgeben... */
}
?>

<a href="download.php?location=images/test.jpg">link</a>

<a href="download.php?location=images/test.jpg">link</a>