The Tor Browser: dom/tests/mochitest/localstorage/test_localStorageQuotaPrivateBrowsing_perwindowpb.html@97036ab72558 (annotated)

dom/tests/mochitest/localstorage/test_localStorageQuotaPrivateBrowsing_perwindowpb.html@97036ab72558 (annotated)

dom/tests/mochitest/localstorage/test_localStorageQuotaPrivateBrowsing_perwindowpb.html

Tue, 06 Jan 2015 21:39:09 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Tue, 06 Jan 2015 21:39:09 +0100
branch: TOR_BUG_9701
changeset 8: 97036ab72558
permissions: -rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

 <html xmlns="http://www.w3.org/1999/xhtml">
 <head>
 <title>localStorage and DOM quota test</title>
 <script type="text/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
 <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"?>
 <script type="text/javascript">
 SimpleTest.waitForExplicitFinish();
 Components.utils.import("resource://gre/modules/Services.jsm");
 const Ci = Components.interfaces;
 const CONTENT_PAGE = "http://mochi.test:8888/chrome/dom/tests/mochitest/localstorage/page_blank.html";
 const slavePath = "/tests/dom/tests/mochitest/localstorage/";
 var currentTest = 1;
 var quota;
 try {
   quota = Services.prefs.getIntPref("dom.storage.default_quota");
 } catch (ex) {
   quota = 5 * 1024;
 }
 Services.prefs.setIntPref("browser.startup.page", 0);
 Services.prefs.setIntPref("dom.storage.default_quota", 1);
 var mainWindow = window.QueryInterface(Ci.nsIInterfaceRequestor).
   getInterface(Ci.nsIWebNavigation).QueryInterface(Ci.nsIDocShellTreeItem).
   rootTreeItem.QueryInterface(Ci.nsIInterfaceRequestor).
   getInterface(Ci.nsIDOMWindow);
 var slaveLoadsPending = 1;
 var slaveOrigin = "";
 var slave = null;
 var failureRegExp = new RegExp("^FAILURE");
 function startTest() {
   testOnWindow(true, function(aWindow) {
     info("Private window loaded");
     var frame = aWindow.content.document.createElement("iframe");
     aWindow.content.document.body.appendChild(frame);
     aWindow.content.addEventListener("message", function(aEvent) {
       onMessageReceived(aEvent, aWindow)
     }, false);
     slave = aWindow.content.frames[0];
     SimpleTest.waitForFocus(function() doNextTest(aWindow), aWindow);
   });
 }
 function doNextTest(aWindow) {
   info("Running test: " + currentTest);
   switch (currentTest) {
     // Initialy setup the quota to testing value of 1024B and
     // set a 500 bytes key with name length 1 (allocate 501 bytes)
     case 1:
       slaveOrigin = "http://example.com";
       slave.location = slaveOrigin + slavePath + "frameQuota.html?add&A&success";
       break;
     // In subdomain now set another key with length 500 bytes, i.e.
     // allocate 501 bytes
     case 2:
       slaveOrigin = "http://test1.example.com";
       slave.location = slaveOrigin + slavePath + "frameQuota.html?add&B&success";
       break;
     // Try to set the same key value again to check we don't fail
     // even 1002 bytes has already been exhausted from the quota
     // We just change the value of an existing key.
     case 3:
       slaveOrigin = "http://test1.example.com";
       slave.location = slaveOrigin + slavePath + "frameQuota.html?add&B&success";
       break;
     // Try to set the same key to a larger value that would lead to
     // quota reach and check that the value is still the old one
     case 4:
       slaveOrigin = "http://test1.example.com";
       slave.location = slaveOrigin + slavePath + "frameQuota.html?add2&B&failure";
       break;
     // In a different subdomain try to set a new 500 bytes key
     // and check we fail because we are over the quota
     case 5:
       slaveOrigin = "https://test2.example.com";
       slave.location = slaveOrigin + slavePath + "frameQuota.html?add&C&failure";
       break;
     // Remove from the second subdomain the second key, it must not fail
     // This should release the allocated space of the quota assigned to
     // example.com.
     case 6:
       slaveOrigin = "http://test1.example.com";
       slave.location = slaveOrigin + slavePath + "frameQuota.html?remove&B&success";
       break;
     // Now try again to set 500 bytes key, it must succeed.
     case 7:
       slaveOrigin = "https://test2.example.com";
       slave.location = slaveOrigin + slavePath + "frameQuota.html?add&C&success";
       break;
     case 8:
       // Do a clean up...
       // TODO Bug 455070, use just ?clear what invokes call
       // of clear() in the target frame. W/o clear method we must
       // call clear implemented as removeItem for each item in
       // the localStorage.
       slaveOrigin = "http://example.com";
       slave.location = slaveOrigin + slavePath + "frameQuota.html?clear&A&";
       break;
     case 9:
       // Do a clean up...
       slaveOrigin = "http://test1.example.com";
       slave.location = slaveOrigin + slavePath + "frameQuota.html?clear&B&";
       break;
     case 10:
       // Do a clean up...
       slaveOrigin = "https://test2.example.com";
       slave.location = slaveOrigin + slavePath + "frameQuota.html?clear&C&";
       break;
     default:
       Services.prefs.clearUserPref("browser.startup.page")
       Services.prefs.setIntPref("dom.storage.default_quota", quota);
       aWindow.close();
       SimpleTest.finish();
   }
   ++currentTest;
 }
 function onMessageReceived(event, aWindow) {
   info("Message received: " + event.data);
   switch (event.data) {
     // Indication of the frame onload event
     case "frame loaded":
       if (--slaveLoadsPending)
         break;
       // Just fall through...
     // Indication of successfully finished step of a test
     case "perf":
       slave.postMessage("step", slaveOrigin);
       break;
     // Indication of all test parts finish (from any of the frames)
     case "done":
       aWindow.content.localStorage.clear();
       slaveLoadsPending = 1;
       doNextTest(aWindow);
       break;
     // Any other message indicates error or succes message of a test
     default:
       SimpleTest.ok(!event.data.match(failureRegExp), event.data);
       break;
   }
 }
 function testOnWindow(aIsPrivate, aCallback) {
   var win = mainWindow.OpenBrowserWindow({private: aIsPrivate});
   win.addEventListener("load", function onLoad() {
     win.removeEventListener("load", onLoad, false);
     win.addEventListener("DOMContentLoaded", function onInnerLoad() {
       if (win.content.location.href != CONTENT_PAGE) {
         win.gBrowser.loadURI(CONTENT_PAGE);
         return;
       }
       win.removeEventListener("DOMContentLoaded", onInnerLoad, true);
       win.gBrowser.selectedBrowser.focus();
       SimpleTest.executeSoon(function() { aCallback(win); });
     }, true);
     win.gBrowser.loadURI(CONTENT_PAGE);
   }, true);
 }
 </script>
 </head>
 <body onload="startTest();">
 </body>
 </html>

The Tor Browser / annotate

dom/tests/mochitest/localstorage/test_localStorageQuotaPrivateBrowsing_perwindowpb.html@97036ab72558 (annotated)

dom/tests/mochitest/localstorage/test_localStorageQuotaPrivateBrowsing_perwindowpb.html