1285 lines
49 KiB
TypeScript
1285 lines
49 KiB
TypeScript
import { BrowserWindow, ipcMain } from 'electron/main';
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import { contextBridge } from 'electron/renderer';
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import { expect } from 'chai';
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import * as fs from 'fs-extra';
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import * as http from 'http';
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import * as os from 'os';
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import * as path from 'path';
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import * as cp from 'child_process';
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import { closeWindow } from './lib/window-helpers';
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import { emittedOnce } from './lib/events-helpers';
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import { listen } from './lib/spec-helpers';
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const fixturesPath = path.resolve(__dirname, 'fixtures', 'api', 'context-bridge');
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describe('contextBridge', () => {
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let w: BrowserWindow;
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let dir: string;
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let server: http.Server;
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let serverUrl: string;
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before(async () => {
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server = http.createServer((req, res) => {
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res.setHeader('Content-Type', 'text/html');
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res.end('');
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});
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serverUrl = (await listen(server)).url;
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});
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after(async () => {
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if (server) await new Promise(resolve => server.close(resolve));
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server = null as any;
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});
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afterEach(async () => {
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await closeWindow(w);
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if (dir) await fs.remove(dir);
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});
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it('should not be accessible when contextIsolation is disabled', async () => {
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w = new BrowserWindow({
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show: false,
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webPreferences: {
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contextIsolation: false,
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preload: path.resolve(fixturesPath, 'can-bind-preload.js')
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}
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});
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const [, bound] = await emittedOnce(ipcMain, 'context-bridge-bound', () => w.loadFile(path.resolve(fixturesPath, 'empty.html')));
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expect(bound).to.equal(false);
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});
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it('should be accessible when contextIsolation is enabled', async () => {
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w = new BrowserWindow({
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show: false,
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webPreferences: {
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contextIsolation: true,
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preload: path.resolve(fixturesPath, 'can-bind-preload.js')
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}
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});
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const [, bound] = await emittedOnce(ipcMain, 'context-bridge-bound', () => w.loadFile(path.resolve(fixturesPath, 'empty.html')));
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expect(bound).to.equal(true);
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});
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const generateTests = (useSandbox: boolean) => {
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describe(`with sandbox=${useSandbox}`, () => {
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const makeBindingWindow = async (bindingCreator: Function, worldId: number = 0) => {
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const preloadContentForMainWorld = `const renderer_1 = require('electron');
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${useSandbox ? '' : `require('v8').setFlagsFromString('--expose_gc');
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const gc=require('vm').runInNewContext('gc');
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renderer_1.contextBridge.exposeInMainWorld('GCRunner', {
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run: () => gc()
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});`}
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(${bindingCreator.toString()})();`;
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const preloadContentForIsolatedWorld = `const renderer_1 = require('electron');
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${useSandbox ? '' : `require('v8').setFlagsFromString('--expose_gc');
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const gc=require('vm').runInNewContext('gc');
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renderer_1.webFrame.setIsolatedWorldInfo(${worldId}, {
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name: "Isolated World"
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});
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renderer_1.contextBridge.exposeInIsolatedWorld(${worldId}, 'GCRunner', {
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run: () => gc()
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});`}
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(${bindingCreator.toString()})();`;
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const tmpDir = await fs.mkdtemp(path.resolve(os.tmpdir(), 'electron-spec-preload-'));
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dir = tmpDir;
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await fs.writeFile(path.resolve(tmpDir, 'preload.js'), worldId === 0 ? preloadContentForMainWorld : preloadContentForIsolatedWorld);
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w = new BrowserWindow({
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show: false,
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webPreferences: {
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contextIsolation: true,
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nodeIntegration: true,
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sandbox: useSandbox,
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preload: path.resolve(tmpDir, 'preload.js'),
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additionalArguments: ['--unsafely-expose-electron-internals-for-testing']
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}
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});
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await w.loadURL(serverUrl);
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};
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const callWithBindings = (fn: Function, worldId: number = 0) =>
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worldId === 0 ? w.webContents.executeJavaScript(`(${fn.toString()})(window)`) : w.webContents.executeJavaScriptInIsolatedWorld(worldId, [{ code: `(${fn.toString()})(window)` }]); ;
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const getGCInfo = async (): Promise<{
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trackedValues: number;
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}> => {
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const [, info] = await emittedOnce(ipcMain, 'gc-info', () => w.webContents.send('get-gc-info'));
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return info;
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};
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const forceGCOnWindow = async () => {
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w.webContents.debugger.attach();
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await w.webContents.debugger.sendCommand('HeapProfiler.enable');
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await w.webContents.debugger.sendCommand('HeapProfiler.collectGarbage');
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await w.webContents.debugger.sendCommand('HeapProfiler.disable');
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w.webContents.debugger.detach();
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};
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it('should proxy numbers', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInMainWorld('example', 123);
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});
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const result = await callWithBindings((root: any) => {
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return root.example;
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});
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expect(result).to.equal(123);
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});
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it('should proxy numbers when exposed in isolated world', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInIsolatedWorld(1004, 'example', 123);
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}, 1004);
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const result = await callWithBindings((root: any) => {
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return root.example;
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}, 1004);
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expect(result).to.equal(123);
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});
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it('should make global properties read-only', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInMainWorld('example', 123);
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});
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const result = await callWithBindings((root: any) => {
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root.example = 456;
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return root.example;
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});
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expect(result).to.equal(123);
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});
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it('should proxy nested numbers', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInMainWorld('example', {
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myNumber: 123
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});
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});
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const result = await callWithBindings((root: any) => {
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return root.example.myNumber;
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});
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expect(result).to.equal(123);
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});
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it('should make properties unwriteable', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInMainWorld('example', {
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myNumber: 123
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});
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});
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const result = await callWithBindings((root: any) => {
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root.example.myNumber = 456;
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return root.example.myNumber;
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});
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expect(result).to.equal(123);
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});
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it('should proxy strings', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInMainWorld('example', 'my-words');
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});
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const result = await callWithBindings((root: any) => {
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return root.example;
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});
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expect(result).to.equal('my-words');
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});
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it('should proxy nested strings', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInMainWorld('example', {
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myString: 'my-words'
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});
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});
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const result = await callWithBindings((root: any) => {
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return root.example.myString;
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});
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expect(result).to.equal('my-words');
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});
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it('should proxy nested strings when exposed in isolated world', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInIsolatedWorld(1004, 'example', {
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myString: 'my-words'
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});
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}, 1004);
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const result = await callWithBindings((root: any) => {
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return root.example.myString;
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}, 1004);
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expect(result).to.equal('my-words');
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});
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it('should proxy arrays', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInMainWorld('example', [123, 'my-words']);
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});
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const result = await callWithBindings((root: any) => {
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return [root.example, Array.isArray(root.example)];
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});
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expect(result).to.deep.equal([[123, 'my-words'], true]);
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});
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it('should proxy nested arrays', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInMainWorld('example', {
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myArr: [123, 'my-words']
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});
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});
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const result = await callWithBindings((root: any) => {
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return root.example.myArr;
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});
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expect(result).to.deep.equal([123, 'my-words']);
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});
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it('should make arrays immutable', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInMainWorld('example', [123, 'my-words']);
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});
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const immutable = await callWithBindings((root: any) => {
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try {
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root.example.push(456);
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return false;
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} catch {
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return true;
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}
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});
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expect(immutable).to.equal(true);
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});
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it('should make nested arrays immutable', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInMainWorld('example', {
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myArr: [123, 'my-words']
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});
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});
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const immutable = await callWithBindings((root: any) => {
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try {
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root.example.myArr.push(456);
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return false;
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} catch {
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return true;
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}
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});
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expect(immutable).to.equal(true);
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});
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it('should proxy booleans', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInMainWorld('example', true);
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});
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const result = await callWithBindings((root: any) => {
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return root.example;
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});
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expect(result).to.equal(true);
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});
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it('should proxy nested booleans', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInMainWorld('example', {
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myBool: true
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});
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});
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const result = await callWithBindings((root: any) => {
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return root.example.myBool;
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});
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expect(result).to.equal(true);
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});
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it('should proxy promises and resolve with the correct value', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInMainWorld('example',
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Promise.resolve('i-resolved')
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);
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});
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const result = await callWithBindings((root: any) => {
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return root.example;
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});
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expect(result).to.equal('i-resolved');
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});
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it('should proxy nested promises and resolve with the correct value', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInMainWorld('example', {
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myPromise: Promise.resolve('i-resolved')
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});
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});
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const result = await callWithBindings((root: any) => {
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return root.example.myPromise;
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});
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expect(result).to.equal('i-resolved');
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});
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it('should proxy promises and reject with the correct value', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInMainWorld('example', Promise.reject(new Error('i-rejected')));
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});
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const result = await callWithBindings(async (root: any) => {
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try {
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await root.example;
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return null;
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} catch (err) {
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return err;
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}
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});
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expect(result).to.be.an.instanceOf(Error).with.property('message', 'i-rejected');
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});
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it('should proxy nested promises and reject with the correct value', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInMainWorld('example', {
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myPromise: Promise.reject(new Error('i-rejected'))
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});
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});
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const result = await callWithBindings(async (root: any) => {
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try {
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await root.example.myPromise;
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return null;
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} catch (err) {
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return err;
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}
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});
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expect(result).to.be.an.instanceOf(Error).with.property('message', 'i-rejected');
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});
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it('should proxy promises and resolve with the correct value if it resolves later', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInMainWorld('example', {
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myPromise: () => new Promise(resolve => setTimeout(() => resolve('delayed'), 20))
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});
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});
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const result = await callWithBindings((root: any) => {
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return root.example.myPromise();
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});
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expect(result).to.equal('delayed');
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});
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it('should proxy nested promises correctly', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInMainWorld('example', {
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myPromise: () => new Promise(resolve => setTimeout(() => resolve(Promise.resolve(123)), 20))
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});
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});
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const result = await callWithBindings((root: any) => {
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return root.example.myPromise();
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});
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expect(result).to.equal(123);
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});
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it('should proxy methods', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInMainWorld('example', {
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getNumber: () => 123,
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getString: () => 'help',
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getBoolean: () => false,
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getPromise: async () => 'promise'
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});
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});
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const result = await callWithBindings(async (root: any) => {
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return [root.example.getNumber(), root.example.getString(), root.example.getBoolean(), await root.example.getPromise()];
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});
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expect(result).to.deep.equal([123, 'help', false, 'promise']);
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});
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it('should proxy functions', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInMainWorld('example', () => 'return-value');
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});
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const result = await callWithBindings(async (root: any) => {
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return root.example();
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});
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expect(result).equal('return-value');
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});
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it('should not double-proxy functions when they are returned to their origin side of the bridge', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInMainWorld('example', (fn: any) => fn);
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});
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const result = await callWithBindings(async (root: any) => {
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const fn = () => null;
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return root.example(fn) === fn;
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});
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expect(result).equal(true);
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});
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it('should properly handle errors thrown in proxied functions', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInMainWorld('example', () => { throw new Error('oh no'); });
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});
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const result = await callWithBindings(async (root: any) => {
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try {
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root.example();
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} catch (e) {
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return (e as Error).message;
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}
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});
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expect(result).equal('oh no');
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});
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it('should proxy methods that are callable multiple times', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInMainWorld('example', {
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doThing: () => 123
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});
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});
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const result = await callWithBindings(async (root: any) => {
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return [root.example.doThing(), root.example.doThing(), root.example.doThing()];
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});
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expect(result).to.deep.equal([123, 123, 123]);
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});
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it('should proxy methods in the reverse direction', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInMainWorld('example', {
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callWithNumber: (fn: any) => fn(123)
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});
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});
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const result = await callWithBindings(async (root: any) => {
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return root.example.callWithNumber((n: number) => n + 1);
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});
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expect(result).to.equal(124);
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});
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it('should proxy promises in the reverse direction', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInMainWorld('example', {
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getPromiseValue: (p: Promise<any>) => p
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});
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});
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const result = await callWithBindings((root: any) => {
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return root.example.getPromiseValue(Promise.resolve('my-proxied-value'));
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});
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expect(result).to.equal('my-proxied-value');
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});
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it('should proxy objects with number keys', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInMainWorld('example', {
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1: 123,
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2: 456,
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3: 789
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});
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});
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const result = await callWithBindings(async (root: any) => {
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return [root.example[1], root.example[2], root.example[3], Array.isArray(root.example)];
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});
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expect(result).to.deep.equal([123, 456, 789, false]);
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});
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it('it should proxy null', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInMainWorld('example', null);
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});
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const result = await callWithBindings((root: any) => {
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// Convert to strings as although the context bridge keeps the right value
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// IPC does not
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return `${root.example}`;
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});
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expect(result).to.deep.equal('null');
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});
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it('it should proxy undefined', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInMainWorld('example', undefined);
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});
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const result = await callWithBindings((root: any) => {
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// Convert to strings as although the context bridge keeps the right value
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// IPC does not
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return `${root.example}`;
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});
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expect(result).to.deep.equal('undefined');
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});
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it('it should proxy nested null and undefined correctly', async () => {
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await makeBindingWindow(() => {
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contextBridge.exposeInMainWorld('example', {
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values: [null, undefined]
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});
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});
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const result = await callWithBindings((root: any) => {
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// Convert to strings as although the context bridge keeps the right value
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// IPC does not
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return root.example.values.map((val: any) => `${val}`);
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});
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expect(result).to.deep.equal(['null', 'undefined']);
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});
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it('should proxy symbols', async () => {
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await makeBindingWindow(() => {
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const mySymbol = Symbol('unique');
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const isSymbol = (s: Symbol) => s === mySymbol;
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contextBridge.exposeInMainWorld('symbol', mySymbol);
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contextBridge.exposeInMainWorld('isSymbol', isSymbol);
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});
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const result = await callWithBindings((root: any) => {
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return root.isSymbol(root.symbol);
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});
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expect(result).to.equal(true, 'symbols should be equal across contexts');
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});
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|
|
it('should proxy symbols such that symbol equality works', async () => {
|
|
await makeBindingWindow(() => {
|
|
const mySymbol = Symbol('unique');
|
|
contextBridge.exposeInMainWorld('example', {
|
|
getSymbol: () => mySymbol,
|
|
isSymbol: (s: Symbol) => s === mySymbol
|
|
});
|
|
});
|
|
const result = await callWithBindings((root: any) => {
|
|
return root.example.isSymbol(root.example.getSymbol());
|
|
});
|
|
expect(result).to.equal(true, 'symbols should be equal across contexts');
|
|
});
|
|
|
|
it('should proxy symbols such that symbol key lookup works', async () => {
|
|
await makeBindingWindow(() => {
|
|
const mySymbol = Symbol('unique');
|
|
contextBridge.exposeInMainWorld('example', {
|
|
getSymbol: () => mySymbol,
|
|
getObject: () => ({ [mySymbol]: 123 })
|
|
});
|
|
});
|
|
const result = await callWithBindings((root: any) => {
|
|
return root.example.getObject()[root.example.getSymbol()];
|
|
});
|
|
expect(result).to.equal(123, 'symbols key lookup should work across contexts');
|
|
});
|
|
|
|
it('should proxy typed arrays', async () => {
|
|
await makeBindingWindow(() => {
|
|
contextBridge.exposeInMainWorld('example', new Uint8Array(100));
|
|
});
|
|
const result = await callWithBindings((root: any) => {
|
|
return Object.getPrototypeOf(root.example) === Uint8Array.prototype;
|
|
});
|
|
expect(result).equal(true);
|
|
});
|
|
|
|
it('should proxy regexps', async () => {
|
|
await makeBindingWindow(() => {
|
|
contextBridge.exposeInMainWorld('example', /a/g);
|
|
});
|
|
const result = await callWithBindings((root: any) => {
|
|
return Object.getPrototypeOf(root.example) === RegExp.prototype;
|
|
});
|
|
expect(result).equal(true);
|
|
});
|
|
|
|
it('should proxy typed arrays and regexps through the serializer', async () => {
|
|
await makeBindingWindow(() => {
|
|
contextBridge.exposeInMainWorld('example', {
|
|
arr: new Uint8Array(100),
|
|
regexp: /a/g
|
|
});
|
|
});
|
|
const result = await callWithBindings((root: any) => {
|
|
return [
|
|
Object.getPrototypeOf(root.example.arr) === Uint8Array.prototype,
|
|
Object.getPrototypeOf(root.example.regexp) === RegExp.prototype
|
|
];
|
|
});
|
|
expect(result).to.deep.equal([true, true]);
|
|
});
|
|
|
|
it('should handle recursive objects', async () => {
|
|
await makeBindingWindow(() => {
|
|
const o: any = { value: 135 };
|
|
o.o = o;
|
|
contextBridge.exposeInMainWorld('example', {
|
|
o
|
|
});
|
|
});
|
|
const result = await callWithBindings((root: any) => {
|
|
return [root.example.o.value, root.example.o.o.value, root.example.o.o.o.value];
|
|
});
|
|
expect(result).to.deep.equal([135, 135, 135]);
|
|
});
|
|
|
|
it('should handle DOM elements', async () => {
|
|
await makeBindingWindow(() => {
|
|
contextBridge.exposeInMainWorld('example', {
|
|
getElem: () => document.body
|
|
});
|
|
});
|
|
const result = await callWithBindings((root: any) => {
|
|
return [root.example.getElem().tagName, root.example.getElem().constructor.name, typeof root.example.getElem().querySelector];
|
|
});
|
|
expect(result).to.deep.equal(['BODY', 'HTMLBodyElement', 'function']);
|
|
});
|
|
|
|
it('should handle DOM elements going backwards over the bridge', async () => {
|
|
await makeBindingWindow(() => {
|
|
contextBridge.exposeInMainWorld('example', {
|
|
getElemInfo: (fn: Function) => {
|
|
const elem = fn();
|
|
return [elem.tagName, elem.constructor.name, typeof elem.querySelector];
|
|
}
|
|
});
|
|
});
|
|
const result = await callWithBindings((root: any) => {
|
|
return root.example.getElemInfo(() => document.body);
|
|
});
|
|
expect(result).to.deep.equal(['BODY', 'HTMLBodyElement', 'function']);
|
|
});
|
|
|
|
it('should handle Blobs', async () => {
|
|
await makeBindingWindow(() => {
|
|
contextBridge.exposeInMainWorld('example', {
|
|
getBlob: () => new Blob(['ab', 'cd'])
|
|
});
|
|
});
|
|
const result = await callWithBindings(async (root: any) => {
|
|
return [await root.example.getBlob().text()];
|
|
});
|
|
expect(result).to.deep.equal(['abcd']);
|
|
});
|
|
|
|
it('should handle Blobs going backwards over the bridge', async () => {
|
|
await makeBindingWindow(() => {
|
|
contextBridge.exposeInMainWorld('example', {
|
|
getBlobText: async (fn: Function) => {
|
|
const blob = fn();
|
|
return [await blob.text()];
|
|
}
|
|
});
|
|
});
|
|
const result = await callWithBindings((root: any) => {
|
|
return root.example.getBlobText(() => new Blob(['12', '45']));
|
|
});
|
|
expect(result).to.deep.equal(['1245']);
|
|
});
|
|
|
|
// Can only run tests which use the GCRunner in non-sandboxed environments
|
|
if (!useSandbox) {
|
|
it('should release the global hold on methods sent across contexts', async () => {
|
|
await makeBindingWindow(() => {
|
|
const trackedValues: WeakRef<object>[] = [];
|
|
require('electron').ipcRenderer.on('get-gc-info', e => e.sender.send('gc-info', { trackedValues: trackedValues.filter(value => value.deref()).length }));
|
|
contextBridge.exposeInMainWorld('example', {
|
|
getFunction: () => () => 123,
|
|
track: (value: object) => { trackedValues.push(new WeakRef(value)); }
|
|
});
|
|
});
|
|
await callWithBindings(async (root: any) => {
|
|
root.GCRunner.run();
|
|
});
|
|
expect((await getGCInfo()).trackedValues).to.equal(0);
|
|
await callWithBindings(async (root: any) => {
|
|
const fn = root.example.getFunction();
|
|
root.example.track(fn);
|
|
root.x = [fn];
|
|
});
|
|
expect((await getGCInfo()).trackedValues).to.equal(1);
|
|
await callWithBindings(async (root: any) => {
|
|
root.x = [];
|
|
root.GCRunner.run();
|
|
});
|
|
expect((await getGCInfo()).trackedValues).to.equal(0);
|
|
});
|
|
}
|
|
|
|
if (useSandbox) {
|
|
it('should not leak the global hold on methods sent across contexts when reloading a sandboxed renderer', async () => {
|
|
await makeBindingWindow(() => {
|
|
const trackedValues: WeakRef<object>[] = [];
|
|
require('electron').ipcRenderer.on('get-gc-info', e => e.sender.send('gc-info', { trackedValues: trackedValues.filter(value => value.deref()).length }));
|
|
contextBridge.exposeInMainWorld('example', {
|
|
getFunction: () => () => 123,
|
|
track: (value: object) => { trackedValues.push(new WeakRef(value)); }
|
|
});
|
|
require('electron').ipcRenderer.send('window-ready-for-tasking');
|
|
});
|
|
const loadPromise = emittedOnce(ipcMain, 'window-ready-for-tasking');
|
|
expect((await getGCInfo()).trackedValues).to.equal(0);
|
|
await callWithBindings((root: any) => {
|
|
root.example.track(root.example.getFunction());
|
|
});
|
|
expect((await getGCInfo()).trackedValues).to.equal(1);
|
|
await callWithBindings((root: any) => {
|
|
root.location.reload();
|
|
});
|
|
await loadPromise;
|
|
await forceGCOnWindow();
|
|
// If this is ever "2" it means we leaked the exposed function and
|
|
// therefore the entire context after a reload
|
|
expect((await getGCInfo()).trackedValues).to.equal(0);
|
|
});
|
|
}
|
|
|
|
it('it should not let you overwrite existing exposed things', async () => {
|
|
await makeBindingWindow(() => {
|
|
let threw = false;
|
|
contextBridge.exposeInMainWorld('example', {
|
|
attempt: 1,
|
|
getThrew: () => threw
|
|
});
|
|
try {
|
|
contextBridge.exposeInMainWorld('example', {
|
|
attempt: 2,
|
|
getThrew: () => threw
|
|
});
|
|
} catch {
|
|
threw = true;
|
|
}
|
|
});
|
|
const result = await callWithBindings((root: any) => {
|
|
return [root.example.attempt, root.example.getThrew()];
|
|
});
|
|
expect(result).to.deep.equal([1, true]);
|
|
});
|
|
|
|
it('should work with complex nested methods and promises', async () => {
|
|
await makeBindingWindow(() => {
|
|
contextBridge.exposeInMainWorld('example', {
|
|
first: (second: Function) => second((fourth: Function) => {
|
|
return fourth();
|
|
})
|
|
});
|
|
});
|
|
const result = await callWithBindings((root: any) => {
|
|
return root.example.first((third: Function) => {
|
|
return third(() => Promise.resolve('final value'));
|
|
});
|
|
});
|
|
expect(result).to.equal('final value');
|
|
});
|
|
|
|
it('should work with complex nested methods and promises attached directly to the global', async () => {
|
|
await makeBindingWindow(() => {
|
|
contextBridge.exposeInMainWorld('example',
|
|
(second: Function) => second((fourth: Function) => {
|
|
return fourth();
|
|
})
|
|
);
|
|
});
|
|
const result = await callWithBindings((root: any) => {
|
|
return root.example((third: Function) => {
|
|
return third(() => Promise.resolve('final value'));
|
|
});
|
|
});
|
|
expect(result).to.equal('final value');
|
|
});
|
|
|
|
it('should throw an error when recursion depth is exceeded', async () => {
|
|
await makeBindingWindow(() => {
|
|
contextBridge.exposeInMainWorld('example', {
|
|
doThing: (a: any) => console.log(a)
|
|
});
|
|
});
|
|
let threw = await callWithBindings((root: any) => {
|
|
try {
|
|
let a: any = [];
|
|
for (let i = 0; i < 999; i++) {
|
|
a = [a];
|
|
}
|
|
root.example.doThing(a);
|
|
return false;
|
|
} catch {
|
|
return true;
|
|
}
|
|
});
|
|
expect(threw).to.equal(false);
|
|
threw = await callWithBindings((root: any) => {
|
|
try {
|
|
let a: any = [];
|
|
for (let i = 0; i < 1000; i++) {
|
|
a = [a];
|
|
}
|
|
root.example.doThing(a);
|
|
return false;
|
|
} catch {
|
|
return true;
|
|
}
|
|
});
|
|
expect(threw).to.equal(true);
|
|
});
|
|
|
|
it('should copy thrown errors into the other context', async () => {
|
|
await makeBindingWindow(() => {
|
|
contextBridge.exposeInMainWorld('example', {
|
|
throwNormal: () => {
|
|
throw new Error('whoops');
|
|
},
|
|
throwWeird: () => {
|
|
throw 'this is no error...'; // eslint-disable-line no-throw-literal
|
|
},
|
|
throwNotClonable: () => {
|
|
return Object(Symbol('foo'));
|
|
},
|
|
argumentConvert: () => {}
|
|
});
|
|
});
|
|
const result = await callWithBindings((root: any) => {
|
|
const getError = (fn: Function) => {
|
|
try {
|
|
fn();
|
|
} catch (e) {
|
|
return e;
|
|
}
|
|
return null;
|
|
};
|
|
const normalIsError = Object.getPrototypeOf(getError(root.example.throwNormal)) === Error.prototype;
|
|
const weirdIsError = Object.getPrototypeOf(getError(root.example.throwWeird)) === Error.prototype;
|
|
const notClonableIsError = Object.getPrototypeOf(getError(root.example.throwNotClonable)) === Error.prototype;
|
|
const argumentConvertIsError = Object.getPrototypeOf(getError(() => root.example.argumentConvert(Object(Symbol('test'))))) === Error.prototype;
|
|
return [normalIsError, weirdIsError, notClonableIsError, argumentConvertIsError];
|
|
});
|
|
expect(result).to.deep.equal([true, true, true, true], 'should all be errors in the current context');
|
|
});
|
|
|
|
it('should not leak prototypes', async () => {
|
|
await makeBindingWindow(() => {
|
|
contextBridge.exposeInMainWorld('example', {
|
|
number: 123,
|
|
string: 'string',
|
|
boolean: true,
|
|
arr: [123, 'string', true, ['foo']],
|
|
symbol: Symbol('foo'),
|
|
bigInt: 10n,
|
|
getObject: () => ({ thing: 123 }),
|
|
getNumber: () => 123,
|
|
getString: () => 'string',
|
|
getBoolean: () => true,
|
|
getArr: () => [123, 'string', true, ['foo']],
|
|
getPromise: async () => ({ number: 123, string: 'string', boolean: true, fn: () => 'string', arr: [123, 'string', true, ['foo']] }),
|
|
getFunctionFromFunction: async () => () => null,
|
|
object: {
|
|
number: 123,
|
|
string: 'string',
|
|
boolean: true,
|
|
arr: [123, 'string', true, ['foo']],
|
|
getPromise: async () => ({ number: 123, string: 'string', boolean: true, fn: () => 'string', arr: [123, 'string', true, ['foo']] })
|
|
},
|
|
receiveArguments: (fn: any) => fn({ key: 'value' }),
|
|
symbolKeyed: {
|
|
[Symbol('foo')]: 123
|
|
},
|
|
getBody: () => document.body,
|
|
getBlob: () => new Blob(['ab', 'cd'])
|
|
});
|
|
});
|
|
const result = await callWithBindings(async (root: any) => {
|
|
const { example } = root;
|
|
let arg: any;
|
|
example.receiveArguments((o: any) => { arg = o; });
|
|
const protoChecks = [
|
|
...Object.keys(example).map(key => [key, String]),
|
|
...Object.getOwnPropertySymbols(example.symbolKeyed).map(key => [key, Symbol]),
|
|
[example, Object],
|
|
[example.number, Number],
|
|
[example.string, String],
|
|
[example.boolean, Boolean],
|
|
[example.arr, Array],
|
|
[example.arr[0], Number],
|
|
[example.arr[1], String],
|
|
[example.arr[2], Boolean],
|
|
[example.arr[3], Array],
|
|
[example.arr[3][0], String],
|
|
[example.symbol, Symbol],
|
|
[example.bigInt, BigInt],
|
|
[example.getNumber, Function],
|
|
[example.getNumber(), Number],
|
|
[example.getObject(), Object],
|
|
[example.getString(), String],
|
|
[example.getBoolean(), Boolean],
|
|
[example.getArr(), Array],
|
|
[example.getArr()[0], Number],
|
|
[example.getArr()[1], String],
|
|
[example.getArr()[2], Boolean],
|
|
[example.getArr()[3], Array],
|
|
[example.getArr()[3][0], String],
|
|
[example.getFunctionFromFunction, Function],
|
|
[example.getFunctionFromFunction(), Promise],
|
|
[await example.getFunctionFromFunction(), Function],
|
|
[example.getPromise(), Promise],
|
|
[await example.getPromise(), Object],
|
|
[(await example.getPromise()).number, Number],
|
|
[(await example.getPromise()).string, String],
|
|
[(await example.getPromise()).boolean, Boolean],
|
|
[(await example.getPromise()).fn, Function],
|
|
[(await example.getPromise()).fn(), String],
|
|
[(await example.getPromise()).arr, Array],
|
|
[(await example.getPromise()).arr[0], Number],
|
|
[(await example.getPromise()).arr[1], String],
|
|
[(await example.getPromise()).arr[2], Boolean],
|
|
[(await example.getPromise()).arr[3], Array],
|
|
[(await example.getPromise()).arr[3][0], String],
|
|
[example.object, Object],
|
|
[example.object.number, Number],
|
|
[example.object.string, String],
|
|
[example.object.boolean, Boolean],
|
|
[example.object.arr, Array],
|
|
[example.object.arr[0], Number],
|
|
[example.object.arr[1], String],
|
|
[example.object.arr[2], Boolean],
|
|
[example.object.arr[3], Array],
|
|
[example.object.arr[3][0], String],
|
|
[await example.object.getPromise(), Object],
|
|
[(await example.object.getPromise()).number, Number],
|
|
[(await example.object.getPromise()).string, String],
|
|
[(await example.object.getPromise()).boolean, Boolean],
|
|
[(await example.object.getPromise()).fn, Function],
|
|
[(await example.object.getPromise()).fn(), String],
|
|
[(await example.object.getPromise()).arr, Array],
|
|
[(await example.object.getPromise()).arr[0], Number],
|
|
[(await example.object.getPromise()).arr[1], String],
|
|
[(await example.object.getPromise()).arr[2], Boolean],
|
|
[(await example.object.getPromise()).arr[3], Array],
|
|
[(await example.object.getPromise()).arr[3][0], String],
|
|
[arg, Object],
|
|
[arg.key, String],
|
|
[example.getBody(), HTMLBodyElement],
|
|
[example.getBlob(), Blob]
|
|
];
|
|
return {
|
|
protoMatches: protoChecks.map(([a, Constructor]) => Object.getPrototypeOf(a) === Constructor.prototype)
|
|
};
|
|
});
|
|
// Every protomatch should be true
|
|
expect(result.protoMatches).to.deep.equal(result.protoMatches.map(() => true));
|
|
});
|
|
|
|
it('should not leak prototypes when attaching directly to the global', async () => {
|
|
await makeBindingWindow(() => {
|
|
const toExpose = {
|
|
number: 123,
|
|
string: 'string',
|
|
boolean: true,
|
|
arr: [123, 'string', true, ['foo']],
|
|
symbol: Symbol('foo'),
|
|
bigInt: 10n,
|
|
getObject: () => ({ thing: 123 }),
|
|
getNumber: () => 123,
|
|
getString: () => 'string',
|
|
getBoolean: () => true,
|
|
getArr: () => [123, 'string', true, ['foo']],
|
|
getPromise: async () => ({ number: 123, string: 'string', boolean: true, fn: () => 'string', arr: [123, 'string', true, ['foo']] }),
|
|
getFunctionFromFunction: async () => () => null,
|
|
getError: () => new Error('foo'),
|
|
getWeirdError: () => {
|
|
const e = new Error('foo');
|
|
e.message = { garbage: true } as any;
|
|
return e;
|
|
},
|
|
object: {
|
|
number: 123,
|
|
string: 'string',
|
|
boolean: true,
|
|
arr: [123, 'string', true, ['foo']],
|
|
getPromise: async () => ({ number: 123, string: 'string', boolean: true, fn: () => 'string', arr: [123, 'string', true, ['foo']] })
|
|
},
|
|
receiveArguments: (fn: any) => fn({ key: 'value' }),
|
|
symbolKeyed: {
|
|
[Symbol('foo')]: 123
|
|
}
|
|
};
|
|
const keys: string[] = [];
|
|
Object.entries(toExpose).forEach(([key, value]) => {
|
|
keys.push(key);
|
|
contextBridge.exposeInMainWorld(key, value);
|
|
});
|
|
contextBridge.exposeInMainWorld('keys', keys);
|
|
});
|
|
const result = await callWithBindings(async (root: any) => {
|
|
const { keys } = root;
|
|
const cleanedRoot: any = {};
|
|
for (const [key, value] of Object.entries(root)) {
|
|
if (keys.includes(key)) {
|
|
cleanedRoot[key] = value;
|
|
}
|
|
}
|
|
|
|
let arg: any;
|
|
cleanedRoot.receiveArguments((o: any) => { arg = o; });
|
|
const protoChecks = [
|
|
...Object.keys(cleanedRoot).map(key => [key, String]),
|
|
...Object.getOwnPropertySymbols(cleanedRoot.symbolKeyed).map(key => [key, Symbol]),
|
|
[cleanedRoot, Object],
|
|
[cleanedRoot.number, Number],
|
|
[cleanedRoot.string, String],
|
|
[cleanedRoot.boolean, Boolean],
|
|
[cleanedRoot.arr, Array],
|
|
[cleanedRoot.arr[0], Number],
|
|
[cleanedRoot.arr[1], String],
|
|
[cleanedRoot.arr[2], Boolean],
|
|
[cleanedRoot.arr[3], Array],
|
|
[cleanedRoot.arr[3][0], String],
|
|
[cleanedRoot.symbol, Symbol],
|
|
[cleanedRoot.bigInt, BigInt],
|
|
[cleanedRoot.getNumber, Function],
|
|
[cleanedRoot.getNumber(), Number],
|
|
[cleanedRoot.getObject(), Object],
|
|
[cleanedRoot.getString(), String],
|
|
[cleanedRoot.getBoolean(), Boolean],
|
|
[cleanedRoot.getArr(), Array],
|
|
[cleanedRoot.getArr()[0], Number],
|
|
[cleanedRoot.getArr()[1], String],
|
|
[cleanedRoot.getArr()[2], Boolean],
|
|
[cleanedRoot.getArr()[3], Array],
|
|
[cleanedRoot.getArr()[3][0], String],
|
|
[cleanedRoot.getFunctionFromFunction, Function],
|
|
[cleanedRoot.getFunctionFromFunction(), Promise],
|
|
[await cleanedRoot.getFunctionFromFunction(), Function],
|
|
[cleanedRoot.getError(), Error],
|
|
[cleanedRoot.getError().message, String],
|
|
[cleanedRoot.getWeirdError(), Error],
|
|
[cleanedRoot.getWeirdError().message, String],
|
|
[cleanedRoot.getPromise(), Promise],
|
|
[await cleanedRoot.getPromise(), Object],
|
|
[(await cleanedRoot.getPromise()).number, Number],
|
|
[(await cleanedRoot.getPromise()).string, String],
|
|
[(await cleanedRoot.getPromise()).boolean, Boolean],
|
|
[(await cleanedRoot.getPromise()).fn, Function],
|
|
[(await cleanedRoot.getPromise()).fn(), String],
|
|
[(await cleanedRoot.getPromise()).arr, Array],
|
|
[(await cleanedRoot.getPromise()).arr[0], Number],
|
|
[(await cleanedRoot.getPromise()).arr[1], String],
|
|
[(await cleanedRoot.getPromise()).arr[2], Boolean],
|
|
[(await cleanedRoot.getPromise()).arr[3], Array],
|
|
[(await cleanedRoot.getPromise()).arr[3][0], String],
|
|
[cleanedRoot.object, Object],
|
|
[cleanedRoot.object.number, Number],
|
|
[cleanedRoot.object.string, String],
|
|
[cleanedRoot.object.boolean, Boolean],
|
|
[cleanedRoot.object.arr, Array],
|
|
[cleanedRoot.object.arr[0], Number],
|
|
[cleanedRoot.object.arr[1], String],
|
|
[cleanedRoot.object.arr[2], Boolean],
|
|
[cleanedRoot.object.arr[3], Array],
|
|
[cleanedRoot.object.arr[3][0], String],
|
|
[await cleanedRoot.object.getPromise(), Object],
|
|
[(await cleanedRoot.object.getPromise()).number, Number],
|
|
[(await cleanedRoot.object.getPromise()).string, String],
|
|
[(await cleanedRoot.object.getPromise()).boolean, Boolean],
|
|
[(await cleanedRoot.object.getPromise()).fn, Function],
|
|
[(await cleanedRoot.object.getPromise()).fn(), String],
|
|
[(await cleanedRoot.object.getPromise()).arr, Array],
|
|
[(await cleanedRoot.object.getPromise()).arr[0], Number],
|
|
[(await cleanedRoot.object.getPromise()).arr[1], String],
|
|
[(await cleanedRoot.object.getPromise()).arr[2], Boolean],
|
|
[(await cleanedRoot.object.getPromise()).arr[3], Array],
|
|
[(await cleanedRoot.object.getPromise()).arr[3][0], String],
|
|
[arg, Object],
|
|
[arg.key, String]
|
|
];
|
|
return {
|
|
protoMatches: protoChecks.map(([a, Constructor]) => Object.getPrototypeOf(a) === Constructor.prototype)
|
|
};
|
|
});
|
|
// Every protomatch should be true
|
|
expect(result.protoMatches).to.deep.equal(result.protoMatches.map(() => true));
|
|
});
|
|
|
|
describe('internalContextBridge', () => {
|
|
describe('overrideGlobalValueFromIsolatedWorld', () => {
|
|
it('should override top level properties', async () => {
|
|
await makeBindingWindow(() => {
|
|
contextBridge.internalContextBridge!.overrideGlobalValueFromIsolatedWorld(['open'], () => ({ you: 'are a wizard' }));
|
|
});
|
|
const result = await callWithBindings(async (root: any) => {
|
|
return root.open();
|
|
});
|
|
expect(result).to.deep.equal({ you: 'are a wizard' });
|
|
});
|
|
|
|
it('should override deep properties', async () => {
|
|
await makeBindingWindow(() => {
|
|
contextBridge.internalContextBridge!.overrideGlobalValueFromIsolatedWorld(['document', 'foo'], () => 'I am foo');
|
|
});
|
|
const result = await callWithBindings(async (root: any) => {
|
|
return root.document.foo();
|
|
});
|
|
expect(result).to.equal('I am foo');
|
|
});
|
|
});
|
|
|
|
describe('overrideGlobalPropertyFromIsolatedWorld', () => {
|
|
it('should call the getter correctly', async () => {
|
|
await makeBindingWindow(() => {
|
|
let callCount = 0;
|
|
const getter = () => {
|
|
callCount++;
|
|
return true;
|
|
};
|
|
contextBridge.internalContextBridge!.overrideGlobalPropertyFromIsolatedWorld(['isFun'], getter);
|
|
contextBridge.exposeInMainWorld('foo', {
|
|
callCount: () => callCount
|
|
});
|
|
});
|
|
const result = await callWithBindings(async (root: any) => {
|
|
return [root.isFun, root.foo.callCount()];
|
|
});
|
|
expect(result[0]).to.equal(true);
|
|
expect(result[1]).to.equal(1);
|
|
});
|
|
|
|
it('should not make a setter if none is provided', async () => {
|
|
await makeBindingWindow(() => {
|
|
contextBridge.internalContextBridge!.overrideGlobalPropertyFromIsolatedWorld(['isFun'], () => true);
|
|
});
|
|
const result = await callWithBindings(async (root: any) => {
|
|
root.isFun = 123;
|
|
return root.isFun;
|
|
});
|
|
expect(result).to.equal(true);
|
|
});
|
|
|
|
it('should call the setter correctly', async () => {
|
|
await makeBindingWindow(() => {
|
|
const callArgs: any[] = [];
|
|
const setter = (...args: any[]) => {
|
|
callArgs.push(args);
|
|
return true;
|
|
};
|
|
contextBridge.internalContextBridge!.overrideGlobalPropertyFromIsolatedWorld(['isFun'], () => true, setter);
|
|
contextBridge.exposeInMainWorld('foo', {
|
|
callArgs: () => callArgs
|
|
});
|
|
});
|
|
const result = await callWithBindings(async (root: any) => {
|
|
root.isFun = 123;
|
|
return root.foo.callArgs();
|
|
});
|
|
expect(result).to.have.lengthOf(1);
|
|
expect(result[0]).to.have.lengthOf(1);
|
|
expect(result[0][0]).to.equal(123);
|
|
});
|
|
});
|
|
|
|
describe('overrideGlobalValueWithDynamicPropsFromIsolatedWorld', () => {
|
|
it('should not affect normal values', async () => {
|
|
await makeBindingWindow(() => {
|
|
contextBridge.internalContextBridge!.overrideGlobalValueWithDynamicPropsFromIsolatedWorld(['thing'], {
|
|
a: 123,
|
|
b: () => 2,
|
|
c: () => ({ d: 3 })
|
|
});
|
|
});
|
|
const result = await callWithBindings(async (root: any) => {
|
|
return [root.thing.a, root.thing.b(), root.thing.c()];
|
|
});
|
|
expect(result).to.deep.equal([123, 2, { d: 3 }]);
|
|
});
|
|
|
|
it('should work with getters', async () => {
|
|
await makeBindingWindow(() => {
|
|
contextBridge.internalContextBridge!.overrideGlobalValueWithDynamicPropsFromIsolatedWorld(['thing'], {
|
|
get foo () {
|
|
return 'hi there';
|
|
}
|
|
});
|
|
});
|
|
const result = await callWithBindings(async (root: any) => {
|
|
return root.thing.foo;
|
|
});
|
|
expect(result).to.equal('hi there');
|
|
});
|
|
|
|
it('should work with nested getters', async () => {
|
|
await makeBindingWindow(() => {
|
|
contextBridge.internalContextBridge!.overrideGlobalValueWithDynamicPropsFromIsolatedWorld(['thing'], {
|
|
get foo () {
|
|
return {
|
|
get bar () {
|
|
return 'hi there';
|
|
}
|
|
};
|
|
}
|
|
});
|
|
});
|
|
const result = await callWithBindings(async (root: any) => {
|
|
return root.thing.foo.bar;
|
|
});
|
|
expect(result).to.equal('hi there');
|
|
});
|
|
|
|
it('should work with setters', async () => {
|
|
await makeBindingWindow(() => {
|
|
let a: any = null;
|
|
contextBridge.internalContextBridge!.overrideGlobalValueWithDynamicPropsFromIsolatedWorld(['thing'], {
|
|
get foo () {
|
|
return a;
|
|
},
|
|
set foo (arg: any) {
|
|
a = arg + 1;
|
|
}
|
|
});
|
|
});
|
|
const result = await callWithBindings(async (root: any) => {
|
|
root.thing.foo = 123;
|
|
return root.thing.foo;
|
|
});
|
|
expect(result).to.equal(124);
|
|
});
|
|
|
|
it('should work with nested getter / setter combos', async () => {
|
|
await makeBindingWindow(() => {
|
|
let a: any = null;
|
|
contextBridge.internalContextBridge!.overrideGlobalValueWithDynamicPropsFromIsolatedWorld(['thing'], {
|
|
get thingy () {
|
|
return {
|
|
get foo () {
|
|
return a;
|
|
},
|
|
set foo (arg: any) {
|
|
a = arg + 1;
|
|
}
|
|
};
|
|
}
|
|
});
|
|
});
|
|
const result = await callWithBindings(async (root: any) => {
|
|
root.thing.thingy.foo = 123;
|
|
return root.thing.thingy.foo;
|
|
});
|
|
expect(result).to.equal(124);
|
|
});
|
|
|
|
it('should work with deep properties', async () => {
|
|
await makeBindingWindow(() => {
|
|
contextBridge.internalContextBridge!.overrideGlobalValueWithDynamicPropsFromIsolatedWorld(['thing'], {
|
|
a: () => ({
|
|
get foo () {
|
|
return 'still here';
|
|
}
|
|
})
|
|
});
|
|
});
|
|
const result = await callWithBindings(async (root: any) => {
|
|
return root.thing.a().foo;
|
|
});
|
|
expect(result).to.equal('still here');
|
|
});
|
|
});
|
|
});
|
|
});
|
|
};
|
|
|
|
generateTests(true);
|
|
generateTests(false);
|
|
});
|
|
|
|
describe('ContextBridgeMutability', () => {
|
|
it('should not make properties unwriteable and read-only if ContextBridgeMutability is on', async () => {
|
|
const appPath = path.join(fixturesPath, 'context-bridge-mutability');
|
|
const appProcess = cp.spawn(process.execPath, ['--enable-logging', '--enable-features=ContextBridgeMutability', appPath]);
|
|
|
|
let output = '';
|
|
appProcess.stdout.on('data', data => { output += data; });
|
|
await emittedOnce(appProcess, 'exit');
|
|
|
|
expect(output).to.include('some-modified-text');
|
|
expect(output).to.include('obj-modified-prop');
|
|
expect(output).to.include('1,2,5,3,4');
|
|
});
|
|
|
|
it('should make properties unwriteable and read-only if ContextBridgeMutability is off', async () => {
|
|
const appPath = path.join(fixturesPath, 'context-bridge-mutability');
|
|
const appProcess = cp.spawn(process.execPath, ['--enable-logging', appPath]);
|
|
|
|
let output = '';
|
|
appProcess.stdout.on('data', data => { output += data; });
|
|
await emittedOnce(appProcess, 'exit');
|
|
|
|
expect(output).to.include('some-text');
|
|
expect(output).to.include('obj-prop');
|
|
expect(output).to.include('1,2,3,4');
|
|
});
|
|
});
|