third_party/WebKit/LayoutTests/http/tests/appcache/resources/modified-manifest.php

   1 <?php
   2 require_once '../../resources/portabilityLayer.php';
   3
   4 # This manifest references itself with a command to bump a counter, so
   5 # that a subsequent fetch of the same manifest URL returns a file that
   6 # is not byte-for-byte identical, which will cause caching to fail.
   7
   8 $tmpFile = sys_get_temp_dir() . "/" . "appcache_modified_manifest_counter";
   9
  10 function getCount($file)
  11 {
  12     if (!file_exists($file)) {
  13         file_put_contents($file, "0");
  14         return "0";
  15     }
  16     return file_get_contents($file);
  17 }
  18
  19 function stepCounter($file)
  20 {
  21     if (file_exists($file)) {
  22         $value = getCount($file);
  23         file_put_contents($file, ++$value);
  24     }
  25 }
  26
  27 if ("step" == $_GET['command'])
  28     stepCounter($tmpFile);
  29
  30 header("Expires: Thu, 01 Dec 2003 16:00:00 GMT");
  31 header("Cache-Control: no-cache, must-revalidate");
  32 header("Pragma: no-cache");
  33 header("Content-Type: text/cache-manifest");
  34
  35 print("CACHE MANIFEST\n");
  36 print("# version " . getCount($tmpFile) . "\n");
  37 print("CACHE:\n");
  38 print("modified-manifest.php?command=step\n");
  39 ?>