diff options
Diffstat (limited to 'dom/tests/browser/browser_windowProxy_transplant.js')
| -rw-r--r-- | dom/tests/browser/browser_windowProxy_transplant.js | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/dom/tests/browser/browser_windowProxy_transplant.js b/dom/tests/browser/browser_windowProxy_transplant.js new file mode 100644 index 0000000000..6b9e316968 --- /dev/null +++ b/dom/tests/browser/browser_windowProxy_transplant.js @@ -0,0 +1,219 @@ +"use strict"; + +const DIRPATH = getRootDirectory(gTestPath).replace( + "chrome://mochitests/content/", + "" +); +const PATH = DIRPATH + "file_postMessage_parent.html"; + +const URL1 = `http://mochi.test:8888/${PATH}`; +const URL2 = `http://example.com/${PATH}`; +const URL3 = `http://example.org/${PATH}`; + +// A bunch of boilerplate which needs to be dealt with. +add_task(async function () { + // Turn on BC preservation and frameloader rebuilding to ensure that the + // BrowsingContext is preserved. + await SpecialPowers.pushPrefEnv({ + set: [["fission.preserve_browsing_contexts", true]], + }); + + // Open a window with fission force-enabled in it. + let win = await BrowserTestUtils.openNewBrowserWindow({ + fission: true, + remote: true, + }); + try { + // Get the tab & browser to perform the test in. + let tab = win.gBrowser.selectedTab; + let browser = tab.linkedBrowser; + + // Start loading the original URI, then wait until it is loaded. + BrowserTestUtils.startLoadingURIString(browser, URL1); + await BrowserTestUtils.browserLoaded(browser, false, URL1); + + info("Chrome script has loaded initial URI."); + await SpecialPowers.spawn( + browser, + [{ URL1, URL2, URL3 }], + async ({ URL1, URL2, URL3 }) => { + let iframe = content.document.createElement("iframe"); + content.document.body.appendChild(iframe); + + info("Chrome script created iframe"); + + // Here and below, we have to store references to things in the + // iframes on the content window, because all chrome references + // to content will be turned into dead wrappers when the iframes + // are closed. + content.win0 = iframe.contentWindow; + content.bc0 = iframe.browsingContext; + + ok( + !Cu.isDeadWrapper(content.win0), + "win0 shouldn't be a dead wrapper before navigation" + ); + + // Helper for waiting for a load. + function waitLoad() { + return new Promise(resolve => { + iframe.addEventListener( + "load", + event => { + info("Got an iframe load event!"); + resolve(); + }, + { once: true } + ); + }); + } + + function askLoad(url) { + info("Chrome script asking for load of " + url); + iframe.contentWindow.postMessage( + { + action: "navigate", + location: url, + }, + "*" + ); + info("Chrome script done calling PostMessage"); + } + + // Check that BC and WindowProxy are preserved across navigations. + iframe.contentWindow.location = URL1; + await waitLoad(); + + content.win1 = iframe.contentWindow; + let chromeWin1 = iframe.contentWindow; + let chromeWin1x = Cu.waiveXrays(iframe.contentWindow); + content.win1x = Cu.waiveXrays(iframe.contentWindow); + + Assert.notEqual( + chromeWin1, + chromeWin1x, + "waiving xrays creates a new thing?" + ); + + content.bc1 = iframe.browsingContext; + + is( + content.bc0, + content.bc1, + "same to same-origin BrowsingContext match" + ); + is(content.win0, content.win1, "same to same-origin WindowProxy match"); + + ok( + !Cu.isDeadWrapper(content.win1), + "win1 shouldn't be a dead wrapper before navigation" + ); + ok( + !Cu.isDeadWrapper(chromeWin1), + "chromeWin1 shouldn't be a dead wrapper before navigation" + ); + + askLoad(URL2); + await waitLoad(); + + content.win2 = iframe.contentWindow; + content.bc2 = iframe.browsingContext; + + // When chrome accesses a remote window proxy in content, the result + // should be a remote outer window proxy in the chrome compartment, not an + // Xray wrapper around the content remote window proxy. The former will + // throw a security error, because @@toPrimitive can't be called cross + // process, while the latter will result in an opaque wrapper, because + // XPConnect doesn't know what to do when trying to create an Xray wrapper + // around a remote outer window proxy. See bug 1556845. + Assert.throws( + () => { + dump("content.win1 " + content.win1 + "\n"); + }, + /SecurityError: Permission denied to access property Symbol.toPrimitive on cross-origin object/, + "Should get a remote outer window proxy when accessing old window proxy" + ); + Assert.throws( + () => { + dump("content.win2 " + content.win2 + "\n"); + }, + /SecurityError: Permission denied to access property Symbol.toPrimitive on cross-origin object/, + "Should get a remote outer window proxy when accessing new window proxy" + ); + + // If we fail to transplant existing non-remote outer window proxies, then + // after we navigate the iframe existing chrome references to the window will + // become dead wrappers. Also check content.win1 for thoroughness, though + // we don't nuke content-content references. + ok( + !Cu.isDeadWrapper(content.win1), + "win1 shouldn't be a dead wrapper after navigation" + ); + ok( + !Cu.isDeadWrapper(chromeWin1), + "chromeWin1 shouldn't be a dead wrapper after navigation" + ); + ok( + Cu.isDeadWrapper(chromeWin1x), + "chromeWin1x should be a dead wrapper after navigation" + ); + ok( + Cu.isDeadWrapper(content.win1x), + "content.win1x should be a dead wrapper after navigation" + ); + + is( + content.bc1, + content.bc2, + "same to cross-origin navigation BrowsingContext match" + ); + is( + content.win1, + content.win2, + "same to cross-origin navigation WindowProxy match" + ); + + ok( + !Cu.isDeadWrapper(content.win1), + "win1 shouldn't be a dead wrapper after navigation" + ); + + askLoad(URL3); + await waitLoad(); + + content.win3 = iframe.contentWindow; + content.bc3 = iframe.browsingContext; + + is( + content.bc2, + content.bc3, + "cross to cross-origin navigation BrowsingContext match" + ); + is( + content.win2, + content.win3, + "cross to cross-origin navigation WindowProxy match" + ); + + askLoad(URL1); + await waitLoad(); + + content.win4 = iframe.contentWindow; + content.bc4 = iframe.browsingContext; + + is( + content.bc3, + content.bc4, + "cross to same-origin navigation BrowsingContext match" + ); + is( + content.win3, + content.win4, + "cross to same-origin navigation WindowProxy match" + ); + } + ); + } finally { + await BrowserTestUtils.closeWindow(win); + } +}); |