image.php

   1 <?php
   2         set_include_path(get_include_path() . PATH_SEPARATOR .
   3                 dirname(__FILE__) . "/include");
   4
   5         require_once "config.php";
   6
   7         $url = base64_decode($_GET['url']);
   8
   9         $filename = CACHE_DIR . '/images/' . sha1($url) . '.png';
  10
  11         if (file_exists($filename)) {
  12                 header("Content-type: image/png");
  13                 echo file_get_contents($filename);
  14         } else {
  15                 header("Location: $url");
  16         }
  17 ?>