image.php

   1 <?php
   2         set_include_path(dirname(__FILE__) ."/include" . PATH_SEPARATOR .
   3                 get_include_path());
   4
   5         require_once "config.php";
   6
   7         // backwards compatible wrapper for old-style image caching
   8         /* if (isset($_GET['url'])) {
   9                 $url = base64_decode($_GET['url']);
  10
  11                 $filename = CACHE_DIR . '/images/' . sha1($url) . '.png';
  12
  13                 if (file_exists($filename)) {
  14                         header("Content-type: image/png");
  15                         echo file_get_contents($filename);
  16                 } else {
  17                         header("Location: $url");
  18                 }
  19
  20                 return;
  21         } */
  22
  23         @$hash = basename($_GET['hash']);
  24
  25         if ($hash) {
  26
  27                 $filename = CACHE_DIR . '/images/' . $hash . '.png';
  28
  29                 if (file_exists($filename)) {
  30                         header("Content-type: image/png");
  31                         $stamp = gmdate("D, d M Y H:i:s", filemtime($filename)). " GMT";
  32                         header("Last-Modified: $stamp", true);
  33
  34                         $fp = fopen($filename, "r");
  35
  36                         if ($fp) {
  37                                 while ($data = fread($fp, 32768)) {
  38                                         print $data;
  39                                 }
  40                                 fclose($fp);
  41                         }
  42
  43                 } else {
  44                         header($_SERVER["SERVER_PROTOCOL"]." 404 Not Found");
  45                         echo "File not found.";
  46                 }
  47         }
  48
  49 ?>