third_party/WebKit/LayoutTests/http/tests/cache/post-with-cached-subresources.php

   1 <?php
   2 require_once '../resources/portabilityLayer.php';
   3
   4 // This test loads an uncacheable main resource and a cacheable image subresource.
   5 // We request this page as a GET, then reload this page with a POST.
   6 // On the post request, the image should be loaded from the cache and no HTTP
   7 // request should be sent. The image resource will return 404 if it receives
   8 // a second request, which will cause us to FAIL.
   9 // See https://bugs.webkit.org/show_bug.cgi?id=38690
  10 header('Cache-Control: no-cache, no-store, must-revalidate, max-age=0');
  11 header('Pragma: no-cache');
  12 header('Expires: ' . gmdate(DATE_RFC1123, time()-1));
  13 ?>
  14 <html>
  15 <body>
  16 <div id="result"></div>
  17 <script>
  18 if (window.testRunner) {
  19     testRunner.dumpAsText();
  20     testRunner.waitUntilDone();
  21 }
  22
  23 function logAndFinish(message)
  24 {
  25     document.getElementById("result").appendChild(document.createTextNode(message));
  26     var xhr = new XMLHttpRequest;
  27     xhr.open("GET", "../resources/reset-temp-file.php?filename=post.tmp", false);
  28     xhr.send(null);
  29     if (window.testRunner)
  30         testRunner.notifyDone();
  31 }
  32 </script>
  33 <?php
  34 clearstatcache();
  35 if ($_POST["submit"] == "finish") {
  36     // The initial load of the image might have been done from the cache. In that case, touch the
  37     // state file to indicate a load has already occurred.
  38     if (!file_exists(sys_get_temp_dir() . "/post.tmp")) {
  39         echo "<script>";
  40         echo "xhr = new XMLHttpRequest;";
  41         echo "xhr.open('GET', '../resources/touch-temp-file.php?filename=post.tmp', false);";
  42         echo "xhr.send(null);";
  43         echo "</script>";
  44     }
  45     // Evict resources in memory cache before re-posting. Otherwise, it will
  46     // always PASS.
  47     echo "<script>";
  48     echo "if (window.internals)";
  49     echo "  window.internals.evictAllResources();";
  50     echo "</script>";
  51     echo "<img src='resources/post-image-to-verify.php' onload=\"logAndFinish('PASS');\" onerror=\"logAndFinish('FAIL');\"></img>";
  52 } else {
  53     echo "<form action='post-with-cached-subresources.php' method='post'>";
  54     echo "<input type='submit' id='submit' name='submit' value='finish'>";
  55     echo "</form>";
  56     echo "<img src='resources/post-image-to-verify.php' onload=\"document.getElementById('submit').click();\" onerror=\"logAndFinish('FAIL on initial load');\"></img>";
  57 }
  58 ?>
  59 </body>
  60 </html>