LayoutTests/http/tests/cache/post-redirect-get.php - WebKit - Git at Google

 <?php
 require_once '../resources/portabilityLayer.php';

 // This test loads an uncacheable main resource and a cacheable image subresource.
 // We then trigger a POST request, which redirects as a GET back to this page.
 // On this GET request, the image should be loaded from the cache and no HTTP
 // request should be sent. The image resource will return 404 if it receives
 // a second request, which will cause us to FAIL.
 // See https://bugs.webkit.org/show_bug.cgi?id=38690
 header('Cache-Control: no-cache, no-store, must-revalidate, max-age=0');
 header('Pragma: no-cache');
 header('Expires: ' . gmdate(DATE_RFC1123, time()-1));

 if ($_POST["submit"] == "redirect") {
     header('HTTP/1.1 302 Found');
     header('Location: post-redirect-get.php?finish=true');
     exit();
 }
 ?>
 <html>
 <body>
 <div id="result"></div>
 <script>
 if (window.testRunner) {
     testRunner.dumpAsText();
     testRunner.waitUntilDone();
 }

 function logAndFinish(message)
 {
     document.getElementById("result").appendChild(document.createTextNode(message));
     var xhr = new XMLHttpRequest;
     xhr.open("GET", "../resources/reset-temp-file.php?filename=cache_post-redirect-get_state", false);
     xhr.send(null);
     if (window.testRunner)
         testRunner.notifyDone();
 }
 </script>
 <?php
 clearstatcache();
 if ($_GET["finish"] == "true") {
     // The initial load of the image might have been done from the cache. In that case, touch the
     // state file to indicate a load has already occurred.
     if (!file_exists(sys_get_temp_dir() . "/cache_post-redirect-get_state")) {
         echo "<script>";
         echo "xhr = new XMLHttpRequest;";
         echo "xhr.open('GET', '../resources/touch-temp-file.php?filename=cache_post-redirect-get_state', false);";
         echo "xhr.send(null);";
         echo "</script>";
     }
     echo "<img src='resources/post-image-to-verify.php?test=cache_post-redirect-get' onload=\"logAndFinish('PASS');\" onerror=\"logAndFinish('FAIL');\"></img>";
 } else {
     echo "<form action='post-redirect-get.php' method='post'>";
     echo "<input type='submit' id='submit' name='submit' value='redirect'>";
     echo "</form>";
     echo "<img src='resources/post-image-to-verify.php?test=cache_post-redirect-get' onload=\"document.getElementById('submit').click();\" onerror=\"logAndFinish('FAIL on initial load');\"></img>";
 }
 ?>
 </body>
 </html>
	<?php
	require_once '../resources/portabilityLayer.php';

	// This test loads an uncacheable main resource and a cacheable image subresource.
	// We then trigger a POST request, which redirects as a GET back to this page.
	// On this GET request, the image should be loaded from the cache and no HTTP
	// request should be sent. The image resource will return 404 if it receives
	// a second request, which will cause us to FAIL.
	// See https://bugs.webkit.org/show_bug.cgi?id=38690
	header('Cache-Control: no-cache, no-store, must-revalidate, max-age=0');
	header('Pragma: no-cache');
	header('Expires: ' . gmdate(DATE_RFC1123, time()-1));

	if ($_POST["submit"] == "redirect") {
	header('HTTP/1.1 302 Found');
	header('Location: post-redirect-get.php?finish=true');
	exit();
	}
	?>
	<html>
	<body>
	<div id="result"></div>
	<script>
	if (window.testRunner) {
	testRunner.dumpAsText();
	testRunner.waitUntilDone();
	}

	function logAndFinish(message)
	{
	document.getElementById("result").appendChild(document.createTextNode(message));
	var xhr = new XMLHttpRequest;
	xhr.open("GET", "../resources/reset-temp-file.php?filename=cache_post-redirect-get_state", false);
	xhr.send(null);
	if (window.testRunner)
	testRunner.notifyDone();
	}
	</script>
	<?php
	clearstatcache();
	if ($_GET["finish"] == "true") {
	// The initial load of the image might have been done from the cache. In that case, touch the
	// state file to indicate a load has already occurred.
	if (!file_exists(sys_get_temp_dir() . "/cache_post-redirect-get_state")) {
	echo "<script>";
	echo "xhr = new XMLHttpRequest;";
	echo "xhr.open('GET', '../resources/touch-temp-file.php?filename=cache_post-redirect-get_state', false);";
	echo "xhr.send(null);";
	echo "</script>";
	}
	echo "<img src='resources/post-image-to-verify.php?test=cache_post-redirect-get' onload=\"logAndFinish('PASS');\" onerror=\"logAndFinish('FAIL');\"></img>";
	} else {
	echo "<form action='post-redirect-get.php' method='post'>";
	echo "<input type='submit' id='submit' name='submit' value='redirect'>";
	echo "</form>";
	echo "<img src='resources/post-image-to-verify.php?test=cache_post-redirect-get' onload=\"document.getElementById('submit').click();\" onerror=\"logAndFinish('FAIL on initial load');\"></img>";
	}
	?>
	</body>
	</html>