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|
/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* vim: set sts=2 sw=2 et tw=80: */
"use strict";
const { TestUtils } = ChromeUtils.import(
"resource://testing-common/TestUtils.jsm"
);
Services.prefs.setBoolPref("extensions.manifestV3.enabled", true);
const server = createHttpServer({
hosts: ["example.com", "csplog.example.net"],
});
server.registerDirectory("/data/", do_get_file("data"));
var gDefaultCSP = `default-src 'self' 'report-sample'; script-src 'self' 'report-sample';`;
var gCSP = gDefaultCSP;
const pageContent = `<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<img id="testimg">
</body>
</html>`;
server.registerPathHandler("/plain.html", (request, response) => {
response.setStatusLine(request.httpVersion, 200, "OK");
response.setHeader("Content-Type", "text/html");
if (gCSP) {
info(`Content-Security-Policy: ${gCSP}`);
response.setHeader("Content-Security-Policy", gCSP);
}
response.write(pageContent);
});
const BASE_URL = `http://example.com`;
const pageURL = `${BASE_URL}/plain.html`;
const CSP_REPORT_PATH = "/csp-report.sjs";
function readUTF8InputStream(stream) {
let buffer = NetUtil.readInputStream(stream, stream.available());
return new TextDecoder().decode(buffer);
}
server.registerPathHandler(CSP_REPORT_PATH, (request, response) => {
response.setStatusLine(request.httpVersion, 204, "No Content");
let data = readUTF8InputStream(request.bodyInputStream);
Services.obs.notifyObservers(null, "extension-test-csp-report", data);
});
async function promiseCSPReport(test) {
let res = await TestUtils.topicObserved("extension-test-csp-report", test);
return JSON.parse(res[1]);
}
// Test functions loaded into extension content script.
function testImage(data = {}) {
return new Promise(resolve => {
let img = window.document.getElementById("testimg");
img.onload = () => resolve(true);
img.onerror = () => {
browser.test.log(`img error: ${img.src}`);
resolve(false);
};
img.src = data.image_url;
});
}
function testFetch(data = {}) {
let f = data.content ? content.fetch : fetch;
return f(data.url)
.then(() => true)
.catch(e => {
browser.test.assertEq(
e.message,
"NetworkError when attempting to fetch resource.",
"expected fetch failure"
);
return false;
});
}
async function testEval(data = {}) {
try {
// eslint-disable-next-line no-eval
let ev = data.content ? window.eval : eval;
return ev("true");
} catch (e) {
return false;
}
}
async function testFunction(data = {}) {
try {
// eslint-disable-next-line no-eval
let fn = data.content ? window.Function : Function;
let sum = new fn("a", "b", "return a + b");
return sum(1, 1);
} catch (e) {
return 0;
}
}
function testScriptTag(data) {
return new Promise(resolve => {
let script = document.createElement("script");
script.src = data.url;
script.onload = () => {
resolve(true);
};
script.onerror = () => {
resolve(false);
};
document.body.appendChild(script);
});
}
// If the violation source is the extension the securitypolicyviolation event is not fired.
// If the page is the source, the event is fired and both the content script or page scripts
// will receive the event. If we're expecting a moz-extension report we'll fail in the
// event listener if we receive a report. Otherwise we want to resolve in the listener to
// ensure we've received the event for the test.
function contentScript(report) {
return new Promise(resolve => {
if (!report || report["document-uri"] === "moz-extension") {
resolve();
}
// eslint-disable-next-line mozilla/balanced-listeners
document.addEventListener("securitypolicyviolation", e => {
browser.test.assertTrue(
e.documentURI !== "moz-extension",
`securitypolicyviolation: ${e.violatedDirective} ${e.documentURI}`
);
resolve();
});
});
}
let TESTS = [
// Image Tests
{
description:
"Image from content script using default extension csp. Image is allowed.",
pageCSP: `${gDefaultCSP} img-src 'none';`,
script: testImage,
data: { image_url: `${BASE_URL}/data/file_image_good.png` },
expect: true,
},
// Fetch Tests
{
description: "Fetch url in content script uses default extension csp.",
pageCSP: `${gDefaultCSP} connect-src 'none';`,
script: testFetch,
data: { url: `${BASE_URL}/data/file_image_good.png` },
expect: true,
},
{
description: "Fetch full url from content script uses page csp.",
pageCSP: `${gDefaultCSP} connect-src 'none';`,
script: testFetch,
data: {
content: true,
url: `${BASE_URL}/data/file_image_good.png`,
},
expect: false,
report: {
"blocked-uri": `${BASE_URL}/data/file_image_good.png`,
"document-uri": `${BASE_URL}/plain.html`,
"violated-directive": "connect-src",
},
},
{
description: "Fetch url from content script uses page csp.",
pageCSP: `${gDefaultCSP} connect-src *;`,
script: testFetch,
version: 3,
data: {
content: true,
url: `${BASE_URL}/data/file_image_good.png`,
},
expect: true,
},
// Eval tests.
{
description: "Eval from content script uses page csp with unsafe-eval.",
pageCSP: `default-src 'none'; script-src 'unsafe-eval';`,
script: testEval,
data: { content: true },
expect: true,
},
{
description: "Eval from content script uses page csp.",
pageCSP: `default-src 'self' 'report-sample'; script-src 'self';`,
version: 3,
script: testEval,
data: { content: true },
expect: false,
report: {
"blocked-uri": "eval",
"document-uri": "http://example.com/plain.html",
"violated-directive": "script-src",
},
},
{
description: "Eval in content script allowed by v2 csp.",
pageCSP: `script-src 'self' 'unsafe-eval';`,
script: testEval,
expect: true,
},
{
description: "Eval in content script disallowed by v3 csp.",
pageCSP: `script-src 'self' 'unsafe-eval';`,
version: 3,
script: testEval,
expect: false,
},
{
description: "Wrapped Eval in content script uses page csp.",
pageCSP: `script-src 'self' 'unsafe-eval';`,
version: 3,
script: async () => {
return window.wrappedJSObject.eval("true");
},
expect: true,
},
{
description: "Wrapped Eval in content script denied by page csp.",
pageCSP: `script-src 'self';`,
version: 3,
script: async () => {
try {
return window.wrappedJSObject.eval("true");
} catch (e) {
return false;
}
},
expect: false,
},
{
description: "Function from content script uses page csp.",
pageCSP: `default-src 'self'; script-src 'self' 'unsafe-eval';`,
script: testFunction,
data: { content: true },
expect: 2,
},
{
description: "Function from content script uses page csp.",
pageCSP: `default-src 'self' 'report-sample'; script-src 'self';`,
version: 3,
script: testFunction,
data: { content: true },
expect: 0,
report: {
"blocked-uri": "eval",
"document-uri": "http://example.com/plain.html",
"violated-directive": "script-src",
},
},
{
description: "Function in content script uses extension csp.",
pageCSP: `default-src 'self'; script-src 'self' 'unsafe-eval';`,
version: 3,
script: testFunction,
expect: 0,
},
// The javascript url tests are not included as we do not execute those,
// aparently even with the urlbar filtering pref flipped.
// (browser.urlbar.filter.javascript)
// https://bugzilla.mozilla.org/show_bug.cgi?id=866522
// script tag injection tests
{
description: "remote script in content script passes in v2",
version: 2,
pageCSP: "script-src http://example.com:*;",
script: testScriptTag,
data: { url: `${BASE_URL}/data/file_script_good.js` },
expect: true,
},
{
description: "remote script in content script fails in v3",
version: 3,
pageCSP: "script-src http://example.com:*;",
script: testScriptTag,
data: { url: `${BASE_URL}/data/file_script_good.js` },
expect: false,
},
];
async function runCSPTest(test) {
// Set the CSP for the page loaded into the tab.
gCSP = `${test.pageCSP || gDefaultCSP} report-uri ${CSP_REPORT_PATH}`;
let data = {
manifest: {
manifest_version: test.version || 2,
content_scripts: [
{
matches: ["http://*/plain.html"],
run_at: "document_idle",
js: ["content_script.js"],
},
],
permissions: ["<all_urls>"],
},
files: {
"content_script.js": `
(${contentScript})(${JSON.stringify(test.report)}).then(() => {
browser.test.sendMessage("violationEvent");
});
(${test.script})(${JSON.stringify(test.data)}).then(result => {
browser.test.sendMessage("result", result);
});
`,
},
};
let extension = ExtensionTestUtils.loadExtension(data);
await extension.startup();
let reportPromise = test.report && promiseCSPReport();
let contentPage = await ExtensionTestUtils.loadContentPage(pageURL);
info(`running: ${test.description}`);
await extension.awaitMessage("violationEvent");
let result = await extension.awaitMessage("result");
equal(result, test.expect, test.description);
if (test.report) {
let report = await reportPromise;
for (let key of Object.keys(test.report)) {
equal(
report["csp-report"][key],
test.report[key],
`csp-report ${key} matches`
);
}
}
await extension.unload();
await contentPage.close();
clearCache();
}
add_task(async function test_contentscript_csp() {
for (let test of TESTS) {
await runCSPTest(test);
}
});
|
