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"use strict";
Services.prefs.setBoolPref("extensions.manifestV3.enabled", true);
const server = createHttpServer({ hosts: ["example.com"] });
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("/worker.js", (request, response) => {
response.setStatusLine(request.httpVersion, 200, "OK");
response.setHeader("Content-Type", "application/javascript", false);
response.write("let x = true;");
});
const baseCSP = [];
baseCSP[2] = {
"object-src": ["blob:", "filesystem:", "moz-extension:", "'self'"],
"script-src": [
"'unsafe-eval'",
"'unsafe-inline'",
"blob:",
"filesystem:",
"http://localhost:*",
"http://127.0.0.1:*",
"https://*",
"moz-extension:",
"'self'",
],
};
baseCSP[3] = {
"object-src": ["'self'"],
"script-src": ["http://localhost:*", "http://127.0.0.1:*", "'self'"],
"worker-src": ["http://localhost:*", "http://127.0.0.1:*", "'self'"],
};
/**
* Tests that content security policies for an add-on are actually applied to *
* documents that belong to it. This tests both the base policies and add-on
* specific policies, and ensures that the parsed policies applied to the
* document's principal match what was specified in the policy string.
*
* @param {number} [manifest_version]
* @param {object} [customCSP]
*/
async function testPolicy(manifest_version = 2, customCSP = null) {
let baseURL;
let addonCSP = {
"object-src": ["'self'"],
"script-src": ["'self'"],
};
let content_security_policy = null;
if (customCSP) {
for (let key of Object.keys(customCSP)) {
addonCSP[key] = customCSP[key].split(/\s+/);
}
content_security_policy = Object.keys(customCSP)
.map(key => `${key} ${customCSP[key]}`)
.join("; ");
}
function checkSource(name, policy, expected) {
// fallback to script-src when comparing worker-src if policy does not include worker-src
let policySrc =
name != "worker-src" || policy[name]
? policy[name]
: policy["script-src"];
equal(
JSON.stringify(policySrc.sort()),
JSON.stringify(expected[name].sort()),
`Expected value for ${name}`
);
}
function checkCSP(csp, location) {
let policies = csp["csp-policies"];
info(`Base policy for ${location}`);
let base = baseCSP[manifest_version];
equal(policies[0]["report-only"], false, "Policy is not report-only");
for (let key in base) {
checkSource(key, policies[0], base);
}
info(`Add-on policy for ${location}`);
equal(policies[1]["report-only"], false, "Policy is not report-only");
for (let key in addonCSP) {
checkSource(key, policies[1], addonCSP);
}
}
function background() {
browser.test.sendMessage(
"base-url",
browser.extension.getURL("").replace(/\/$/, "")
);
browser.test.sendMessage("background-csp", window.getCSP());
}
function tabScript() {
browser.test.sendMessage("tab-csp", window.getCSP());
const worker = new Worker("worker.js");
worker.onmessage = event => {
browser.test.sendMessage("worker-csp", event.data);
};
worker.postMessage({});
}
function testWorker(port) {
this.onmessage = () => {
try {
// eslint-disable-next-line no-undef
importScripts(`http://127.0.0.1:${port}/worker.js`);
postMessage({ loaded: true });
} catch (e) {
postMessage({ loaded: false });
}
};
}
let extension = ExtensionTestUtils.loadExtension({
background,
files: {
"tab.html": `<html><head><meta charset="utf-8">
<script src="tab.js"></${"script"}></head></html>`,
"tab.js": tabScript,
"content.html": `<html><head><meta charset="utf-8"></head></html>`,
"worker.js": `(${testWorker})(${server.identity.primaryPort})`,
},
manifest: {
manifest_version,
content_security_policy,
web_accessible_resources: ["content.html", "tab.html"],
},
});
function frameScript() {
// eslint-disable-next-line mozilla/balanced-listeners
addEventListener(
"DOMWindowCreated",
event => {
let win = event.target.ownerGlobal;
function getCSP() {
let { cspJSON } = win.document;
return win.wrappedJSObject.JSON.parse(cspJSON);
}
Cu.exportFunction(getCSP, win, { defineAs: "getCSP" });
},
true
);
}
let frameScriptURL = `data:,(${encodeURI(frameScript)}).call(this)`;
Services.mm.loadFrameScript(frameScriptURL, true, true);
info(`Testing CSP for policy: ${content_security_policy}`);
await extension.startup();
baseURL = await extension.awaitMessage("base-url");
let tabPage = await ExtensionTestUtils.loadContentPage(
`${baseURL}/tab.html`,
{ extension }
);
let contentPage = await ExtensionTestUtils.loadContentPage(
"http://example.com/dummy"
);
let contentCSP = await contentPage.spawn(
`${baseURL}/content.html`,
async src => {
let doc = this.content.document;
let frame = doc.createElement("iframe");
frame.src = src;
doc.body.appendChild(frame);
await new Promise(resolve => {
frame.onload = resolve;
});
return frame.contentWindow.wrappedJSObject.getCSP();
}
);
let backgroundCSP = await extension.awaitMessage("background-csp");
checkCSP(backgroundCSP, "background page");
let tabCSP = await extension.awaitMessage("tab-csp");
checkCSP(tabCSP, "tab page");
checkCSP(contentCSP, "content frame");
let workerCSP = await extension.awaitMessage("worker-csp");
// TODO BUG 1685627: This test should fail if localhost is not in the csp.
ok(workerCSP.loaded, "worker loaded");
await contentPage.close();
await tabPage.close();
await extension.unload();
Services.mm.removeDelayedFrameScript(frameScriptURL);
}
add_task(async function testCSP() {
await testPolicy(2, null);
let hash =
"'sha256-NjZhMDQ1YjQ1MjEwMmM1OWQ4NDBlYzA5N2Q1OWQ5NDY3ZTEzYTNmMzRmNjQ5NGU1MzlmZmQzMmMxYmIzNWYxOCAgLQo='";
await testPolicy(2, {
"object-src": "'self' https://*.example.com",
"script-src": `'self' https://*.example.com 'unsafe-eval' ${hash}`,
});
await testPolicy(2, {
"object-src": "'none'",
"script-src": `'self'`,
});
await testPolicy(3, {
"object-src": "'self' http://localhost",
"script-src": `'self' http://localhost:123 ${hash}`,
"worker-src": `'self' http://127.0.0.1:*`,
});
await testPolicy(3, {
"object-src": "'none'",
"script-src": `'self'`,
"worker-src": `'self'`,
});
});
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