?URL upload Mod?

I really need this feature! It's one of the vB mods!

* it displays a field to insert external file link
ex: www.your.com/handy.zip
* then it simply upload to server, like an attachment and displays in post!

Code:

<?php

$defaultDest = "./upload";

$password = "";

$os = "1";

$submit="hah!";

echo "<form method=\"POST\" action=\"$PHP_SELF\">";

echo "<fieldset>\n<legend>http uploader</legend>\n";

echo "<label for=\"file\">File Url</label><br>";

echo "Example: http://bla.com/file.ext<br>";

echo "<input type=\"text\" name=\"file\" id=\"file\" tabindex=\"1\" value=\"\"><br>";

echo "<label for=\"new\">New file name</label><br>";

echo "Example: file.ext<br>";

echo "<input type=\"text\" name=\"new\" id=\"new\" tabindex=\"2\" value=\"\"><br>";

if ($password) {

echo "<label for=\"password\">Password</label><br>";

echo "<input type=\"password\" name=\"password\" id=\"password\" tabindex=\"3\" value=\"\"><br>";

}

echo "<p><input name=\"submit\" type=\"submit\" id=\"submit\" value=\"submit\"></p>";

echo "</fieldset>\n</form>";

$submit = $_POST['submit'];

if($submit) {

if($password) {

if ($_POST['password']!=$password) {

  echo "Password incorrect!";

  } else {

  $access = "09023578353";

  }

   } else {

$access = "09023578353";

}

if($access=="09023578353") {

if($os==2) {

$slash="\\";

} else {

$slash="/";

}

$file = $_POST['file'];

$newfilename = $_POST['new'];

if($_POST['otherdest']) {

$dest = $_GET['otherdest'];

} else {

$dest = $defaultDest;

}

$ds = array($dest, $slash, $newfilename);

$ds = implode("", $ds);

if (file_exists($ds)) {

echo "<p>File already exists! <br>\n Adding random digits to beginning of filename.</p>\n";

$ds = array($dest, $slash, rand(0,9999), $newfilename);

$ds = implode("", $ds);

}

echo "<p>New destination $ds</p>\n";

if (!copy($file, $ds)) {

echo "<p>Was unable to copy $file <br>\n See if your path and destination are correct.</p> \n";

} else {

echo "<p><strong>Copy successful!</strong></p> \n";

}}}

?>

i added $password for security reasons, when i use in normal web pages! It's not necessary, if it's possible to use n SMF