| 
<?php
session_start();
 
 include('little_leach.php');
 //pathes to the locked directorys starts from the server document root
 $pathes=array(
 'img'=>'/img/',
 'files'=>'/upload/'
 );
 
 
 $a=new Leach($pathes);
 $filename=$_REQUEST['f'];
 //$filename - it's the name of the file that Leach searchs in the locked directorys
 if(!array_key_exists('leach', $_SESSION) || !in_array($filename,$_SESSION['leach'])) {
 $a->setAccess($filename);
 //setAccess method set access to the file.
 echo "<h1>File Downloading Page:</h1>";
 echo "<a href='leach.php?f=".$filename."'>Download</a>";
 } else {
 header('Location: leach.php?f='.$filename);
 }
 |