mozilla-central/toolkit/components/extensions/test/xpcshell/test_ext_contentscript_context_isolation.js (file symbol)

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Test Info: Warnings

"use strict";
/* globals exportFunction */
/* eslint-disable mozilla/balanced-listeners */
const server = createHttpServer({ hosts: ["example.com", "example.org"] });
server.registerPathHandler("/dummy", (request, response) => {
response.setStatusLine(request.httpVersion, 200, "OK");
response.setHeader("Content-Type", "text/html", false);
response.write("<!DOCTYPE html><html></html>");
});
server.registerPathHandler("/bfcachetestpage", (request, response) => {
response.setStatusLine(request.httpVersion, 200, "OK");
response.setHeader("Content-Type", "text/html;charset=utf-8", false);
response.write(`<!DOCTYPE html>
<script>
window.addEventListener("pageshow", (event) => {
event.stopImmediatePropagation();
if (window.browserTestSendMessage) {
browserTestSendMessage("content-script-show");
}
});
window.addEventListener("pagehide", (event) => {
event.stopImmediatePropagation();
if (window.browserTestSendMessage) {
if (event.persisted) {
browserTestSendMessage("content-script-hide");
} else {
browserTestSendMessage("content-script-unload");
}
}
}, true);
</script>`);
});
add_task(async function test_contentscript_context_isolation() {
function contentScript() {
browser.test.sendMessage("content-script-ready");
exportFunction(browser.test.sendMessage, window, {
defineAs: "browserTestSendMessage",
});
window.addEventListener("pageshow", () => {
browser.test.fail(
"pageshow should have been suppressed by stopImmediatePropagation"
);
});
window.addEventListener(
"pagehide",
() => {
browser.test.fail(
"pagehide should have been suppressed by stopImmediatePropagation"
);
},
true
);
}
let extension = ExtensionTestUtils.loadExtension({
manifest: {
content_scripts: [
{
js: ["content_script.js"],
},
],
},
files: {
"content_script.js": contentScript,
},
});
let contentPage = await ExtensionTestUtils.loadContentPage(
);
await extension.startup();
await extension.awaitMessage("content-script-ready");
// Get the content script context and check that it points to the correct window.
await contentPage.legacySpawn(extension.id, async extensionId => {
const { ExtensionContent } = ChromeUtils.importESModule(
"resource://gre/modules/ExtensionContent.sys.mjs"
);
this.context = ExtensionContent.getContextByExtensionId(
extensionId,
this.content
);
Assert.ok(this.context, "Got content script context");
Assert.equal(
this.context.contentWindow,
this.content,
"Context's contentWindow property is correct"
);
// Navigate so that the content page is hidden in the bfcache.
this.content.location = "http://example.org/dummy?noscripthere1";
});
await extension.awaitMessage("content-script-hide");
await contentPage.legacySpawn(null, async () => {
Assert.equal(
this.context.contentWindow,
null,
"Context's contentWindow property is null"
);
Assert.ok(this.context.sandbox, "Context's sandbox exists");
// Navigate back so the content page is resurrected from the bfcache.
this.content.history.back();
});
await extension.awaitMessage("content-script-show");
async function testWithoutBfcache() {
return contentPage.legacySpawn(null, async () => {
Assert.equal(
this.context.contentWindow,
this.content,
"Context's contentWindow property is correct"
);
Assert.ok(this.context.sandbox, "Context's sandbox exists before unload");
let contextUnloadedPromise = new Promise(resolve => {
this.context.callOnClose({ close: resolve });
});
// Now add an "unload" event listener, which should prevent a page from entering the bfcache.
await new Promise(resolve => {
this.content.addEventListener("unload", () => {
Assert.equal(
this.context.contentWindow,
this.content,
"Context's contentWindow property should be non-null at unload"
);
resolve();
});
this.content.location = "http://example.org/dummy?noscripthere2";
});
await contextUnloadedPromise;
});
}
await runWithPrefs(
[["docshell.shistory.bfcache.allow_unload_listeners", false]],
testWithoutBfcache
);
await extension.awaitMessage("content-script-unload");
await contentPage.legacySpawn(null, async () => {
Assert.equal(
this.context.sandbox,
null,
"Context's sandbox has been destroyed after unload"
);
});
await contentPage.close();
await extension.unload();
});