Your Domain
How to make it look like an external file is downloading from your domain?
Basically I am trying to hide the original source of a file that is to be downloaded by making it look like it is coming from either my or someone elses domain. My main problem is the “download from” info firefox provides when you click on a file to download…thanks.
Hello,
There are some ways you can do this using a scripting language. In this example, I will use PHP, you can use any other language, the procedure is the same. I am just letting the server stream the external file to your server back to the user requesting it. The person requesting it WILL just know that the file is available on your server but in reality it isn;t 
Nice way to cloak a file!
Your traffic will be used since the user will be downloading it from you, but traffic is cheap nowadays so who cares
Basically, you can use cURL (efficient way) to stream the file to server then to user. That is the only way you can do it.
Basically you can do the following:
=============
$image_url = “http://us.i1.yimg.com/us.yimg.com/i/us/sch/gr/ga_ans_uh_logo.gif”;
$ch = curl_init();
$timeout = 0;
curl_setopt ($ch, CURLOPT_URL, $image_url);
curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
// Getting binary data
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_BINARYTRANSFER, 1);
$image = curl_exec($ch);
curl_close($ch);
// output to browser
header(“Content-type: image/jpeg”);
echo $image;
=============
What the above code does, it goes to that external image file, and streams it to the user. But your server will have the traffic as well (bandwidth will be used by your server). You can change the header Content-Type to anything you want… Form PDF to EXE to DOCs to ZIP. You can know all the content types from:
http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html
If you wish to download the file directly (like a save file dialog) add the following header:
header(‘Content-Disposition: attachment; filename=”myimage.jpg”;’);
My Webhosting provider provided us with the following class to download an external file, and store it on the webserver, you could add some methods I explained above to automatically serve it.
Download Class from:
http://wiki.dreamhost.com/index.php/CURL
=======================
class downloader {
var $tempFolder;
var $tempFiles = array();
function __destruct () {
foreach ($this->tempFiles as $file) {
unlink($file['temp']);
}
}
function __construct ($temp)
{
$this->tempFolder = $temp;
}
function get ($url) {
array_unshift($this->tempFiles, array(
‘extension’=> array_pop(explode(‘.’, $url)),
‘original’=> basename($url),
‘temp’=> $this->tempFolder . md5(microtime()),
));
$ch = curl_init($url);
$fp = fopen($this->tempFiles[0]['temp'], ‘w’);
curl_setopt($ch, CURLOPT_FILE, $fp);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_exec($ch);
curl_close($ch);
fclose($fp);
return $this->tempFiles[0]['temp'];
}
function read ($index = 0) {
return file_get_contents($this->tempFiles[$index]['temp']);
}
function readArray ($index = 0)
{
return file($this->tempFiles[$index]['temp']);
}
function listFiles () {
return $this->tempFiles;
}
function save ($path, $index = 0) {
copy($this->tempFiles[$index]['temp'], (is_dir($path) ? $path . $this->tempFiles[$index]['original'] : $path));
}
}
$d = new downloader(‘/home/
?>
=======================
Hope it helped,
Good Luck
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