The Tor Browser / file revision

 /* Any copyright is dedicated to the Public Domain.

    http://creativecommons.org/publicdomain/zero/1.0/ */

 "use strict";

 // Test Summary:

 // 1.  Open about:sessionrestore where formdata is a JS object, not a string

 // 1a. Check that #sessionData on the page is readable after JSON.parse (skipped, checking formdata is sufficient)

 // 1b. Check that there are no backslashes in the formdata

 // 1c. Check that formdata doesn't require JSON.parse

 //

 // 2.  Use the current state (currently about:sessionrestore with data) and then open that in a new instance of about:sessionrestore

 // 2a. Check that there are no backslashes in the formdata

 // 2b. Check that formdata doesn't require JSON.parse

 //

 // 3.  [backwards compat] Use a stringified state as formdata when opening about:sessionrestore

 // 3a. Make sure there are nodes in the tree on about:sessionrestore (skipped, checking formdata is sufficient)

 // 3b. Check that there are no backslashes in the formdata

 // 3c. Check that formdata doesn't require JSON.parse

 const CRASH_STATE = {windows: [{tabs: [{entries: [{url: "about:mozilla" }]}]}]};

 const STATE = {entries: [createEntry(CRASH_STATE)]};

 const STATE2 = {entries: [createEntry({windows: [{tabs: [STATE]}]})]};

 const STATE3 = {entries: [createEntry(JSON.stringify(CRASH_STATE))]};

 function createEntry(sessionData) {

   return {

     url: "about:sessionrestore",

     formdata: {id: {sessionData: sessionData}}

   };

 }

 add_task(function test_nested_about_sessionrestore() {

   // Prepare a blank tab.

   let tab = gBrowser.addTab("about:blank");

   let browser = tab.linkedBrowser;

   yield promiseBrowserLoaded(browser);

   // test 1

   ss.setTabState(tab, JSON.stringify(STATE));

   yield promiseTabRestored(tab);

   checkState("test1", tab);

   // test 2

   ss.setTabState(tab, JSON.stringify(STATE2));

   yield promiseTabRestored(tab);

   checkState("test2", tab);

   // test 3

   ss.setTabState(tab, JSON.stringify(STATE3));

   yield promiseTabRestored(tab);

   checkState("test3", tab);

   // Cleanup.

   gBrowser.removeTab(tab);

 });

 function checkState(prefix, tab) {

   // Flush and query tab state.

   SyncHandlers.get(tab.linkedBrowser).flush();

   let {formdata} = JSON.parse(ss.getTabState(tab));

   ok(formdata.id["sessionData"], prefix + ": we have form data for about:sessionrestore");

   let sessionData_raw = JSON.stringify(formdata.id["sessionData"]);

   ok(!/\\/.test(sessionData_raw), prefix + ": #sessionData contains no backslashes");

   info(sessionData_raw);

   let gotError = false;

   try {

     JSON.parse(formdata.id["sessionData"]);

   } catch (e) {

     info(prefix + ": got error: " + e);

     gotError = true;

   }

   ok(gotError, prefix + ": attempting to JSON.parse form data threw error");

 }