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"use strict";
const server = createHttpServer({
hosts: ["example.com", "x.example.com"],
});
server.registerPathHandler("/dummy", (req, res) => {
res.write("dummy");
});
server.registerPathHandler("/redir", (req, res) => {
res.setStatusLine(req.httpVersion, 302, "Found");
res.setHeader("Access-Control-Allow-Origin", "http://example.com");
res.setHeader("Access-Control-Allow-Credentials", "true");
res.setHeader("Location", new URLSearchParams(req.queryString).get("url"));
});
add_task(async function load_moz_extension_with_and_without_cors() {
let extension = ExtensionTestUtils.loadExtension({
manifest: {
web_accessible_resources: ["ok.js"],
},
files: {
"ok.js": "window.status = 'loaded';",
"deny.js": "window.status = 'unexpected load'",
},
});
await extension.startup();
const EXT_BASE_URL = `moz-extension://${extension.uuid}`;
let contentPage = await ExtensionTestUtils.loadContentPage(
"http://example.com/dummy"
);
await contentPage.spawn([EXT_BASE_URL], async EXT_BASE_URL => {
const { document, window } = this.content;
async function checkScriptLoad({ setupScript, expectLoad, description }) {
const scriptElem = document.createElement("script");
setupScript(scriptElem);
return new Promise(resolve => {
window.status = "initial";
scriptElem.onload = () => {
Assert.equal(window.status, "loaded", "Script executed upon load");
Assert.ok(expectLoad, `Script loaded - ${description}`);
resolve();
};
scriptElem.onerror = () => {
Assert.equal(window.status, "initial", "not executed upon error");
Assert.ok(!expectLoad, `Script not loaded - ${description}`);
resolve();
};
document.head.append(scriptElem);
});
}
function sameOriginRedirectUrl(url) {
return `http://example.com/redir?url=` + encodeURIComponent(url);
}
function crossOriginRedirectUrl(url) {
return `http://x.example.com/redir?url=` + encodeURIComponent(url);
}
// Direct load of web-accessible extension script.
await checkScriptLoad({
setupScript(scriptElem) {
scriptElem.src = `${EXT_BASE_URL}/ok.js`;
},
expectLoad: true,
description: "web-accessible script, plain load",
});
await checkScriptLoad({
setupScript(scriptElem) {
scriptElem.src = `${EXT_BASE_URL}/ok.js`;
scriptElem.crossOrigin = "anonymous";
},
expectLoad: true,
description: "web-accessible script, cors",
});
await checkScriptLoad({
setupScript(scriptElem) {
scriptElem.src = `${EXT_BASE_URL}/ok.js`;
scriptElem.crossOrigin = "use-credentials";
},
expectLoad: true,
description: "web-accessible script, cors+credentials",
});
// Load of web-accessible extension scripts, after same-origin redirect.
await checkScriptLoad({
setupScript(scriptElem) {
scriptElem.src = sameOriginRedirectUrl(`${EXT_BASE_URL}/ok.js`);
},
expectLoad: true,
description: "same-origin redirect to web-accessible script, plain load",
});
await checkScriptLoad({
setupScript(scriptElem) {
scriptElem.src = sameOriginRedirectUrl(`${EXT_BASE_URL}/ok.js`);
scriptElem.crossOrigin = "anonymous";
},
expectLoad: true,
description: "same-origin redirect to web-accessible script, cors",
});
await checkScriptLoad({
setupScript(scriptElem) {
scriptElem.src = sameOriginRedirectUrl(`${EXT_BASE_URL}/ok.js`);
scriptElem.crossOrigin = "use-credentials";
},
expectLoad: true,
description:
"same-origin redirect to web-accessible script, cors+credentials",
});
// Load of web-accessible extension scripts, after cross-origin redirect.
await checkScriptLoad({
setupScript(scriptElem) {
scriptElem.src = crossOriginRedirectUrl(`${EXT_BASE_URL}/ok.js`);
},
expectLoad: true,
description: "cross-origin redirect to web-accessible script, plain load",
});
await checkScriptLoad({
setupScript(scriptElem) {
scriptElem.src = crossOriginRedirectUrl(`${EXT_BASE_URL}/ok.js`);
scriptElem.crossOrigin = "anonymous";
},
expectLoad: true,
description: "cross-origin redirect to web-accessible script, cors",
});
await checkScriptLoad({
setupScript(scriptElem) {
scriptElem.src = crossOriginRedirectUrl(`${EXT_BASE_URL}/ok.js`);
scriptElem.crossOrigin = "use-credentials";
},
expectLoad: true,
description:
"cross-origin redirect to web-accessible script, cors+credentials",
});
// Various loads of non-web-accessible extension script.
await checkScriptLoad({
setupScript(scriptElem) {
scriptElem.src = `${EXT_BASE_URL}/deny.js`;
},
expectLoad: false,
description: "non-accessible script, plain load",
});
await checkScriptLoad({
setupScript(scriptElem) {
scriptElem.src = `${EXT_BASE_URL}/deny.js`;
scriptElem.crossOrigin = "anonymous";
},
expectLoad: false,
description: "non-accessible script, cors",
});
await checkScriptLoad({
setupScript(scriptElem) {
scriptElem.src = sameOriginRedirectUrl(`${EXT_BASE_URL}/deny.js`);
scriptElem.crossOrigin = "anonymous";
},
expectLoad: false,
description: "same-origin redirect to non-accessible script, cors",
});
await checkScriptLoad({
setupScript(scriptElem) {
scriptElem.src = crossOriginRedirectUrl(`${EXT_BASE_URL}/deny.js`);
scriptElem.crossOrigin = "anonymous";
},
expectLoad: false,
description: "cross-origin redirect to non-accessible script, cors",
});
// Sub-resource integrity usually requires CORS. Verify that web-accessible
// extension resources are still subjected to SRI.
const sriHashOkJs = // SRI hash for "window.status = 'loaded';" (=ok.js).
"sha384-EAofaAZpgy6JshegITJJHeE3ROzn9ngGw1GAuuzjSJV1c/YS9PLvHMt9oh4RovrI";
async function testSRI({ integrityMatches }) {
const integrity = integrityMatches ? sriHashOkJs : "sha384-bad-sri-hash";
const sriDescription = integrityMatches
? "web-accessible script, good sri, "
: "web-accessible script, sri not matching, ";
await checkScriptLoad({
setupScript(scriptElem) {
scriptElem.src = `${EXT_BASE_URL}/ok.js`;
scriptElem.integrity = integrity;
},
expectLoad: integrityMatches,
description: `${sriDescription} no cors, plain load`,
});
await checkScriptLoad({
setupScript(scriptElem) {
scriptElem.src = `${EXT_BASE_URL}/ok.js`;
scriptElem.crossOrigin = "anonymous";
scriptElem.integrity = integrity;
},
expectLoad: integrityMatches,
description: `${sriDescription} cors, plain load`,
});
await checkScriptLoad({
setupScript(scriptElem) {
scriptElem.src = sameOriginRedirectUrl(`${EXT_BASE_URL}/ok.js`);
scriptElem.crossOrigin = "anonymous";
scriptElem.integrity = integrity;
},
expectLoad: integrityMatches,
description: `${sriDescription} cors, same-origin redirect`,
});
await checkScriptLoad({
setupScript(scriptElem) {
scriptElem.src = crossOriginRedirectUrl(`${EXT_BASE_URL}/ok.js`);
scriptElem.crossOrigin = "anonymous";
scriptElem.integrity = integrity;
},
expectLoad: integrityMatches,
description: `${sriDescription} cors, cross-origin redirect`,
});
}
await testSRI({ integrityMatches: true });
await testSRI({ integrityMatches: false });
});
await contentPage.close();
await extension.unload();
});
|
