electron/spec/api-ipc-spec.ts
electron-roller[bot] 04df5ce492
chore: bump chromium to 124.0.6323.0 (main) (#41412)
* chore: bump chromium in DEPS to 124.0.6315.0

* chore: update patches

* 5279678: Stream AIDA responses

https://chromium-review.googlesource.com/c/chromium/src/+/5279678

* 5276439: Remove non_network_url_loader_factory_remotes_

https://chromium-review.googlesource.com/c/chromium/src/+/5276439

* 5310165: Add DevTools API to show search results

https://chromium-review.googlesource.com/c/chromium/src/+/5310165

* chore: bump chromium in DEPS to 124.0.6317.0

* chore: update patches

* Remove Setup.Install.CumulativeDiskUsage2 and supporting code

https://chromium-review.googlesource.com/c/chromium/src/+/5314269

* browser: Make cmd line non-const in process singleton callback

https://chromium-review.googlesource.com/c/chromium/src/+/5311256

* chore: bump chromium in DEPS to 124.0.6319.0

* chore: bump chromium in DEPS to 124.0.6321.0

* chore: bump chromium in DEPS to 124.0.6323.0

* 5318335: Roll src/third_party/boringssl/src 23824fa0f..4fe29ebc7

https://chromium-review.googlesource.com/c/chromium/src/+/5318335

* 5318051: [CBE Watermarking] Hoist `watermark_view` to a member variable.

https://chromium-review.googlesource.com/c/chromium/src/+/5318051

* chore: fixup patch indices

* 4946553: Delegate HID permission to Chrome App in webview

https://chromium-review.googlesource.com/c/chromium/src/+/4946553

* 5310001: DevTools UI binding for reporting client events to AIDA

https://chromium-review.googlesource.com/c/chromium/src/+/5310001

* [libc++] Refactor the predicate taking variant of `__cxx_atomic_wait`

* chore: fix browser_view patch harder

* 5293937: Reland "[gUM] Use preferred device if more than one is eligible"

https://chromium-review.googlesource.com/c/chromium/src/+/5293937

* fix: filter {video|audio} devices by eligible device id

* 5267921: enable speak content under the pointer on PWA and WV2

https://chromium-review.googlesource.com/c/chromium/src/+/5267921

* 5310195: heap: Remove Blink's GCTaskRunner

https://chromium-review.googlesource.com/c/chromium/src/+/5310195

---------

Co-authored-by: electron-roller[bot] <84116207+electron-roller[bot]@users.noreply.github.com>
Co-authored-by: John Kleinschmidt <jkleinsc@electronjs.org>
Co-authored-by: Shelley Vohr <shelley.vohr@gmail.com>
2024-02-29 10:31:13 +01:00

836 lines
35 KiB
TypeScript

import { EventEmitter, once } from 'node:events';
import { expect } from 'chai';
import { BrowserWindow, ipcMain, IpcMainInvokeEvent, MessageChannelMain, WebContents } from 'electron/main';
import { closeAllWindows } from './lib/window-helpers';
import { defer, listen } from './lib/spec-helpers';
import * as path from 'node:path';
import * as http from 'node:http';
const v8Util = process._linkedBinding('electron_common_v8_util');
const fixturesPath = path.resolve(__dirname, 'fixtures');
describe('ipc module', () => {
describe('invoke', () => {
let w: BrowserWindow;
before(async () => {
w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, contextIsolation: false } });
await w.loadURL('about:blank');
});
after(async () => {
w.destroy();
});
async function rendererInvoke (...args: any[]) {
const { ipcRenderer } = require('electron');
try {
const result = await ipcRenderer.invoke('test', ...args);
ipcRenderer.send('result', { result });
} catch (e) {
ipcRenderer.send('result', { error: (e as Error).message });
}
}
it('receives a response from a synchronous handler', async () => {
ipcMain.handleOnce('test', (e: IpcMainInvokeEvent, arg: number) => {
expect(arg).to.equal(123);
return 3;
});
const done = new Promise<void>(resolve => ipcMain.once('result', (e, arg) => {
expect(arg).to.deep.equal({ result: 3 });
resolve();
}));
await w.webContents.executeJavaScript(`(${rendererInvoke})(123)`);
await done;
});
it('receives a response from an asynchronous handler', async () => {
ipcMain.handleOnce('test', async (e: IpcMainInvokeEvent, arg: number) => {
expect(arg).to.equal(123);
await new Promise(setImmediate);
return 3;
});
const done = new Promise<void>(resolve => ipcMain.once('result', (e, arg) => {
expect(arg).to.deep.equal({ result: 3 });
resolve();
}));
await w.webContents.executeJavaScript(`(${rendererInvoke})(123)`);
await done;
});
it('receives an error from a synchronous handler', async () => {
ipcMain.handleOnce('test', () => {
throw new Error('some error');
});
const done = new Promise<void>(resolve => ipcMain.once('result', (e, arg) => {
expect(arg.error).to.match(/some error/);
resolve();
}));
await w.webContents.executeJavaScript(`(${rendererInvoke})()`);
await done;
});
it('receives an error from an asynchronous handler', async () => {
ipcMain.handleOnce('test', async () => {
await new Promise(setImmediate);
throw new Error('some error');
});
const done = new Promise<void>(resolve => ipcMain.once('result', (e, arg) => {
expect(arg.error).to.match(/some error/);
resolve();
}));
await w.webContents.executeJavaScript(`(${rendererInvoke})()`);
await done;
});
it('throws an error if no handler is registered', async () => {
const done = new Promise<void>(resolve => ipcMain.once('result', (e, arg) => {
expect(arg.error).to.match(/No handler registered/);
resolve();
}));
await w.webContents.executeJavaScript(`(${rendererInvoke})()`);
await done;
});
it('throws an error when invoking a handler that was removed', async () => {
ipcMain.handle('test', () => { });
ipcMain.removeHandler('test');
const done = new Promise<void>(resolve => ipcMain.once('result', (e, arg) => {
expect(arg.error).to.match(/No handler registered/);
resolve();
}));
await w.webContents.executeJavaScript(`(${rendererInvoke})()`);
await done;
});
it('forbids multiple handlers', async () => {
ipcMain.handle('test', () => { });
try {
expect(() => { ipcMain.handle('test', () => { }); }).to.throw(/second handler/);
} finally {
ipcMain.removeHandler('test');
}
});
it('throws an error in the renderer if the reply callback is dropped', async () => {
ipcMain.handleOnce('test', () => new Promise(() => {
setTimeout(() => v8Util.requestGarbageCollectionForTesting());
/* never resolve */
}));
w.webContents.executeJavaScript(`(${rendererInvoke})()`);
const [, { error }] = await once(ipcMain, 'result');
expect(error).to.match(/reply was never sent/);
});
});
describe('ordering', () => {
let w: BrowserWindow;
before(async () => {
w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, contextIsolation: false } });
await w.loadURL('about:blank');
});
after(async () => {
w.destroy();
});
it('between send and sendSync is consistent', async () => {
const received: number[] = [];
ipcMain.on('test-async', (e, i) => { received.push(i); });
ipcMain.on('test-sync', (e, i) => { received.push(i); e.returnValue = null; });
const done = new Promise<void>(resolve => ipcMain.once('done', () => { resolve(); }));
function rendererStressTest () {
const { ipcRenderer } = require('electron');
for (let i = 0; i < 1000; i++) {
switch ((Math.random() * 2) | 0) {
case 0:
ipcRenderer.send('test-async', i);
break;
case 1:
ipcRenderer.sendSync('test-sync', i);
break;
}
}
ipcRenderer.send('done');
}
try {
w.webContents.executeJavaScript(`(${rendererStressTest})()`);
await done;
} finally {
ipcMain.removeAllListeners('test-async');
ipcMain.removeAllListeners('test-sync');
}
expect(received).to.have.lengthOf(1000);
expect(received).to.deep.equal([...received].sort((a, b) => a - b));
});
it('between send, sendSync, and invoke is consistent', async () => {
const received: number[] = [];
ipcMain.handle('test-invoke', (e, i) => { received.push(i); });
ipcMain.on('test-async', (e, i) => { received.push(i); });
ipcMain.on('test-sync', (e, i) => { received.push(i); e.returnValue = null; });
const done = new Promise<void>(resolve => ipcMain.once('done', () => { resolve(); }));
function rendererStressTest () {
const { ipcRenderer } = require('electron');
for (let i = 0; i < 1000; i++) {
switch ((Math.random() * 3) | 0) {
case 0:
ipcRenderer.send('test-async', i);
break;
case 1:
ipcRenderer.sendSync('test-sync', i);
break;
case 2:
ipcRenderer.invoke('test-invoke', i);
break;
}
}
ipcRenderer.send('done');
}
try {
w.webContents.executeJavaScript(`(${rendererStressTest})()`);
await done;
} finally {
ipcMain.removeHandler('test-invoke');
ipcMain.removeAllListeners('test-async');
ipcMain.removeAllListeners('test-sync');
}
expect(received).to.have.lengthOf(1000);
expect(received).to.deep.equal([...received].sort((a, b) => a - b));
});
});
describe('MessagePort', () => {
afterEach(closeAllWindows);
it('can send a port to the main process', async () => {
const w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, contextIsolation: false } });
w.loadURL('about:blank');
const p = once(ipcMain, 'port');
await w.webContents.executeJavaScript(`(${function () {
const channel = new MessageChannel();
require('electron').ipcRenderer.postMessage('port', 'hi', [channel.port1]);
}})()`);
const [ev, msg] = await p;
expect(msg).to.equal('hi');
expect(ev.ports).to.have.length(1);
expect(ev.senderFrame.parent).to.be.null();
expect(ev.senderFrame.routingId).to.equal(w.webContents.mainFrame.routingId);
const [port] = ev.ports;
expect(port).to.be.an.instanceOf(EventEmitter);
});
it('can sent a message without a transfer', async () => {
const w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, contextIsolation: false } });
w.loadURL('about:blank');
const p = once(ipcMain, 'port');
await w.webContents.executeJavaScript(`(${function () {
require('electron').ipcRenderer.postMessage('port', 'hi');
}})()`);
const [ev, msg] = await p;
expect(msg).to.equal('hi');
expect(ev.ports).to.deep.equal([]);
expect(ev.senderFrame.routingId).to.equal(w.webContents.mainFrame.routingId);
});
it('can communicate between main and renderer', async () => {
const w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, contextIsolation: false } });
w.loadURL('about:blank');
const p = once(ipcMain, 'port');
await w.webContents.executeJavaScript(`(${function () {
const channel = new MessageChannel();
channel.port2.onmessage = (ev: any) => {
channel.port2.postMessage(ev.data * 2);
};
require('electron').ipcRenderer.postMessage('port', '', [channel.port1]);
}})()`);
const [ev] = await p;
expect(ev.ports).to.have.length(1);
expect(ev.senderFrame.routingId).to.equal(w.webContents.mainFrame.routingId);
const [port] = ev.ports;
port.start();
port.postMessage(42);
const [ev2] = await once(port, 'message');
expect(ev2.data).to.equal(84);
});
it('can receive a port from a renderer over a MessagePort connection', async () => {
const w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, contextIsolation: false } });
w.loadURL('about:blank');
function fn () {
const channel1 = new MessageChannel();
const channel2 = new MessageChannel();
channel1.port2.postMessage('', [channel2.port1]);
channel2.port2.postMessage('matryoshka');
require('electron').ipcRenderer.postMessage('port', '', [channel1.port1]);
}
w.webContents.executeJavaScript(`(${fn})()`);
const [{ ports: [port1] }] = await once(ipcMain, 'port');
port1.start();
const [{ ports: [port2] }] = await once(port1, 'message');
port2.start();
const [{ data }] = await once(port2, 'message');
expect(data).to.equal('matryoshka');
});
it('can forward a port from one renderer to another renderer', async () => {
const w1 = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, contextIsolation: false } });
const w2 = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, contextIsolation: false } });
w1.loadURL('about:blank');
w2.loadURL('about:blank');
w1.webContents.executeJavaScript(`(${function () {
const channel = new MessageChannel();
channel.port2.onmessage = (ev: any) => {
require('electron').ipcRenderer.send('message received', ev.data);
};
require('electron').ipcRenderer.postMessage('port', '', [channel.port1]);
}})()`);
const [{ ports: [port] }] = await once(ipcMain, 'port');
await w2.webContents.executeJavaScript(`(${function () {
require('electron').ipcRenderer.on('port', ({ ports: [port] }: any) => {
port.postMessage('a message');
});
}})()`);
w2.webContents.postMessage('port', '', [port]);
const [, data] = await once(ipcMain, 'message received');
expect(data).to.equal('a message');
});
describe('close event', () => {
describe('in renderer', () => {
it('is emitted when the main process closes its end of the port', async () => {
const w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, contextIsolation: false } });
w.loadURL('about:blank');
await w.webContents.executeJavaScript(`(${function () {
const { ipcRenderer } = require('electron');
ipcRenderer.on('port', e => {
const [port] = e.ports;
port.start();
port.onclose = () => {
ipcRenderer.send('closed');
};
});
}})()`);
const { port1, port2 } = new MessageChannelMain();
w.webContents.postMessage('port', null, [port2]);
port1.close();
await once(ipcMain, 'closed');
});
it('is emitted when the other end of a port is garbage-collected', async () => {
const w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, contextIsolation: false } });
w.loadURL('about:blank');
await w.webContents.executeJavaScript(`(${async function () {
const { port2 } = new MessageChannel();
await new Promise<void>(resolve => {
port2.start();
port2.onclose = resolve;
// @ts-ignore --expose-gc is enabled.
gc({ type: 'major', execution: 'async' });
});
}})()`);
});
it('is emitted when the other end of a port is sent to nowhere', async () => {
const w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, contextIsolation: false } });
w.loadURL('about:blank');
ipcMain.once('do-a-gc', () => v8Util.requestGarbageCollectionForTesting());
await w.webContents.executeJavaScript(`(${async function () {
const { port1, port2 } = new MessageChannel();
await new Promise<void>(resolve => {
port2.start();
port2.onclose = resolve;
require('electron').ipcRenderer.postMessage('nobody-listening', null, [port1]);
require('electron').ipcRenderer.send('do-a-gc');
});
}})()`);
});
});
describe('when context destroyed', () => {
it('does not crash', async () => {
let count = 0;
const server = http.createServer((req, res) => {
switch (req.url) {
case '/index.html':
res.setHeader('content-type', 'text/html');
res.statusCode = 200;
count = count + 1;
res.end(`
<title>Hello${count}</title>
<script>
var sharedWorker = new SharedWorker('worker.js');
sharedWorker.port.addEventListener('close', function(event) {
console.log('close event', event.data);
});
</script>`);
break;
case '/worker.js':
res.setHeader('content-type', 'application/javascript; charset=UTF-8');
res.statusCode = 200;
res.end(`
self.addEventListener('connect', function(event) {
var port = event.ports[0];
port.addEventListener('message', function(event) {
console.log('Message from main:', event.data);
port.postMessage('Hello from SharedWorker!');
});
});`);
break;
default:
throw new Error(`unsupported endpoint: ${req.url}`);
}
});
const { port } = await listen(server);
defer(() => {
server.close();
});
const w = new BrowserWindow({ show: false });
await w.loadURL(`http://localhost:${port}/index.html`);
expect(w.webContents.getTitle()).to.equal('Hello1');
// Before the fix, it would crash if reloaded, but now it doesn't
await w.loadURL(`http://localhost:${port}/index.html`);
expect(w.webContents.getTitle()).to.equal('Hello2');
// const crashEvent = emittedOnce(w.webContents, 'render-process-gone');
// await crashEvent;
});
});
});
describe('MessageChannelMain', () => {
it('can be created', () => {
const { port1, port2 } = new MessageChannelMain();
expect(port1).not.to.be.null();
expect(port2).not.to.be.null();
});
it('throws an error when an invalid parameter is sent to postMessage', () => {
const { port1 } = new MessageChannelMain();
expect(() => {
const buffer = new ArrayBuffer(10) as any;
port1.postMessage(null, [buffer]);
}).to.throw(/Port at index 0 is not a valid port/);
expect(() => {
port1.postMessage(null, ['1' as any]);
}).to.throw(/Port at index 0 is not a valid port/);
expect(() => {
port1.postMessage(null, [new Date() as any]);
}).to.throw(/Port at index 0 is not a valid port/);
});
it('throws when postMessage transferables contains the source port', () => {
const { port1 } = new MessageChannelMain();
expect(() => {
port1.postMessage(null, [port1]);
}).to.throw(/Port at index 0 contains the source port./);
});
it('can send messages within the process', async () => {
const { port1, port2 } = new MessageChannelMain();
port2.postMessage('hello');
port1.start();
const [ev] = await once(port1, 'message');
expect(ev.data).to.equal('hello');
});
it('can pass one end to a WebContents', async () => {
const w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, contextIsolation: false } });
w.loadURL('about:blank');
await w.webContents.executeJavaScript(`(${function () {
const { ipcRenderer } = require('electron');
ipcRenderer.on('port', ev => {
const [port] = ev.ports;
port.onmessage = () => {
ipcRenderer.send('done');
};
});
}})()`);
const { port1, port2 } = new MessageChannelMain();
port1.postMessage('hello');
w.webContents.postMessage('port', null, [port2]);
await once(ipcMain, 'done');
});
it('can be passed over another channel', async () => {
const w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, contextIsolation: false } });
w.loadURL('about:blank');
await w.webContents.executeJavaScript(`(${function () {
const { ipcRenderer } = require('electron');
ipcRenderer.on('port', e1 => {
e1.ports[0].onmessage = e2 => {
e2.ports[0].onmessage = e3 => {
ipcRenderer.send('done', e3.data);
};
};
});
}})()`);
const { port1, port2 } = new MessageChannelMain();
const { port1: port3, port2: port4 } = new MessageChannelMain();
port1.postMessage(null, [port4]);
port3.postMessage('hello');
w.webContents.postMessage('port', null, [port2]);
const [, message] = await once(ipcMain, 'done');
expect(message).to.equal('hello');
});
it('can send messages to a closed port', () => {
const { port1, port2 } = new MessageChannelMain();
port2.start();
port2.on('message', () => { throw new Error('unexpected message received'); });
port1.close();
port1.postMessage('hello');
});
it('can send messages to a port whose remote end is closed', () => {
const { port1, port2 } = new MessageChannelMain();
port2.start();
port2.on('message', () => { throw new Error('unexpected message received'); });
port2.close();
port1.postMessage('hello');
});
it('throws when passing null ports', () => {
const { port1 } = new MessageChannelMain();
expect(() => {
port1.postMessage(null, [null] as any);
}).to.throw(/Port at index 0 is not a valid port/);
});
it('throws when passing duplicate ports', () => {
const { port1 } = new MessageChannelMain();
const { port1: port3 } = new MessageChannelMain();
expect(() => {
port1.postMessage(null, [port3, port3]);
}).to.throw(/duplicate/);
});
it('throws when passing ports that have already been neutered', () => {
const { port1 } = new MessageChannelMain();
const { port1: port3 } = new MessageChannelMain();
port1.postMessage(null, [port3]);
expect(() => {
port1.postMessage(null, [port3]);
}).to.throw(/already neutered/);
});
it('throws when passing itself', () => {
const { port1 } = new MessageChannelMain();
expect(() => {
port1.postMessage(null, [port1]);
}).to.throw(/contains the source port/);
});
describe('GC behavior', () => {
it('is not collected while it could still receive messages', async () => {
let trigger: Function;
const promise = new Promise(resolve => { trigger = resolve; });
const port1 = (() => {
const { port1, port2 } = new MessageChannelMain();
port2.on('message', (e) => { trigger(e.data); });
port2.start();
return port1;
})();
v8Util.requestGarbageCollectionForTesting();
port1.postMessage('hello');
expect(await promise).to.equal('hello');
});
});
});
const generateTests = (title: string, postMessage: (contents: WebContents) => WebContents['postMessage']) => {
describe(title, () => {
it('sends a message', async () => {
const w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, contextIsolation: false } });
w.loadURL('about:blank');
await w.webContents.executeJavaScript(`(${function () {
const { ipcRenderer } = require('electron');
ipcRenderer.on('foo', (_e, msg) => {
ipcRenderer.send('bar', msg);
});
}})()`);
postMessage(w.webContents)('foo', { some: 'message' });
const [, msg] = await once(ipcMain, 'bar');
expect(msg).to.deep.equal({ some: 'message' });
});
describe('error handling', () => {
it('throws on missing channel', async () => {
const w = new BrowserWindow({ show: false });
await w.loadURL('about:blank');
expect(() => {
(postMessage(w.webContents) as any)();
}).to.throw(/Insufficient number of arguments/);
});
it('throws on invalid channel', async () => {
const w = new BrowserWindow({ show: false });
await w.loadURL('about:blank');
expect(() => {
postMessage(w.webContents)(null as any, '', []);
}).to.throw(/Error processing argument at index 0/);
});
it('throws on missing message', async () => {
const w = new BrowserWindow({ show: false });
await w.loadURL('about:blank');
expect(() => {
(postMessage(w.webContents) as any)('channel');
}).to.throw(/Insufficient number of arguments/);
});
it('throws on non-serializable message', async () => {
const w = new BrowserWindow({ show: false });
await w.loadURL('about:blank');
expect(() => {
postMessage(w.webContents)('channel', w);
}).to.throw(/An object could not be cloned/);
});
it('throws on invalid transferable list', async () => {
const w = new BrowserWindow({ show: false });
await w.loadURL('about:blank');
expect(() => {
postMessage(w.webContents)('', '', null as any);
}).to.throw(/Invalid value for transfer/);
});
it('throws on transferring non-transferable', async () => {
const w = new BrowserWindow({ show: false });
await w.loadURL('about:blank');
expect(() => {
(postMessage(w.webContents) as any)('channel', '', [123]);
}).to.throw(/Invalid value for transfer/);
});
it('throws when passing null ports', async () => {
const w = new BrowserWindow({ show: false });
await w.loadURL('about:blank');
expect(() => {
postMessage(w.webContents)('foo', null, [null] as any);
}).to.throw(/Invalid value for transfer/);
});
it('throws when passing duplicate ports', async () => {
const w = new BrowserWindow({ show: false });
await w.loadURL('about:blank');
const { port1 } = new MessageChannelMain();
expect(() => {
postMessage(w.webContents)('foo', null, [port1, port1]);
}).to.throw(/duplicate/);
});
it('throws when passing ports that have already been neutered', async () => {
const w = new BrowserWindow({ show: false });
await w.loadURL('about:blank');
const { port1 } = new MessageChannelMain();
postMessage(w.webContents)('foo', null, [port1]);
expect(() => {
postMessage(w.webContents)('foo', null, [port1]);
}).to.throw(/already neutered/);
});
});
});
};
generateTests('WebContents.postMessage', contents => contents.postMessage.bind(contents));
generateTests('WebFrameMain.postMessage', contents => contents.mainFrame.postMessage.bind(contents.mainFrame));
});
describe('WebContents.ipc', () => {
afterEach(closeAllWindows);
it('receives ipc messages sent from the WebContents', async () => {
const w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, contextIsolation: false } });
w.loadURL('about:blank');
w.webContents.executeJavaScript('require(\'electron\').ipcRenderer.send(\'test\', 42)');
const [, num] = await once(w.webContents.ipc, 'test');
expect(num).to.equal(42);
});
it('receives sync-ipc messages sent from the WebContents', async () => {
const w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, contextIsolation: false } });
w.loadURL('about:blank');
w.webContents.ipc.on('test', (event, arg) => {
event.returnValue = arg * 2;
});
const result = await w.webContents.executeJavaScript('require(\'electron\').ipcRenderer.sendSync(\'test\', 42)');
expect(result).to.equal(42 * 2);
});
it('receives postMessage messages sent from the WebContents, w/ MessagePorts', async () => {
const w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, contextIsolation: false } });
w.loadURL('about:blank');
w.webContents.executeJavaScript('require(\'electron\').ipcRenderer.postMessage(\'test\', null, [(new MessageChannel).port1])');
const [event] = await once(w.webContents.ipc, 'test');
expect(event.ports.length).to.equal(1);
});
it('handles invoke messages sent from the WebContents', async () => {
const w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, contextIsolation: false } });
w.loadURL('about:blank');
w.webContents.ipc.handle('test', (_event, arg) => arg * 2);
const result = await w.webContents.executeJavaScript('require(\'electron\').ipcRenderer.invoke(\'test\', 42)');
expect(result).to.equal(42 * 2);
});
it('cascades to ipcMain', async () => {
const w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, contextIsolation: false } });
w.loadURL('about:blank');
let gotFromIpcMain = false;
const ipcMainReceived = new Promise<void>(resolve => ipcMain.on('test', () => { gotFromIpcMain = true; resolve(); }));
const ipcReceived = new Promise<boolean>(resolve => w.webContents.ipc.on('test', () => { resolve(gotFromIpcMain); }));
defer(() => ipcMain.removeAllListeners('test'));
w.webContents.executeJavaScript('require(\'electron\').ipcRenderer.send(\'test\', 42)');
// assert that they are delivered in the correct order
expect(await ipcReceived).to.be.false();
await ipcMainReceived;
});
it('overrides ipcMain handlers', async () => {
const w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, contextIsolation: false } });
w.loadURL('about:blank');
w.webContents.ipc.handle('test', (_event, arg) => arg * 2);
ipcMain.handle('test', () => { throw new Error('should not be called'); });
defer(() => ipcMain.removeHandler('test'));
const result = await w.webContents.executeJavaScript('require(\'electron\').ipcRenderer.invoke(\'test\', 42)');
expect(result).to.equal(42 * 2);
});
it('falls back to ipcMain handlers', async () => {
const w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, contextIsolation: false } });
w.loadURL('about:blank');
ipcMain.handle('test', (_event, arg) => { return arg * 2; });
defer(() => ipcMain.removeHandler('test'));
const result = await w.webContents.executeJavaScript('require(\'electron\').ipcRenderer.invoke(\'test\', 42)');
expect(result).to.equal(42 * 2);
});
it('receives ipcs from child frames', async () => {
const server = http.createServer((req, res) => {
res.setHeader('content-type', 'text/html');
res.end('');
});
const { port } = await listen(server);
defer(() => {
server.close();
});
const w = new BrowserWindow({ show: false, webPreferences: { nodeIntegrationInSubFrames: true, preload: path.resolve(fixturesPath, 'preload-expose-ipc.js') } });
// Preloads don't run in about:blank windows, and file:// urls can't be loaded in iframes, so use a blank http page.
await w.loadURL(`data:text/html,<iframe src="http://localhost:${port}"></iframe>`);
w.webContents.mainFrame.frames[0].executeJavaScript('ipc.send(\'test\', 42)');
const [, arg] = await once(w.webContents.ipc, 'test');
expect(arg).to.equal(42);
});
});
describe('WebFrameMain.ipc', () => {
afterEach(closeAllWindows);
it('responds to ipc messages in the main frame', async () => {
const w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, contextIsolation: false } });
w.loadURL('about:blank');
w.webContents.executeJavaScript('require(\'electron\').ipcRenderer.send(\'test\', 42)');
const [, arg] = await once(w.webContents.mainFrame.ipc, 'test');
expect(arg).to.equal(42);
});
it('responds to sync ipc messages in the main frame', async () => {
const w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, contextIsolation: false } });
w.loadURL('about:blank');
w.webContents.mainFrame.ipc.on('test', (event, arg) => {
event.returnValue = arg * 2;
});
const result = await w.webContents.executeJavaScript('require(\'electron\').ipcRenderer.sendSync(\'test\', 42)');
expect(result).to.equal(42 * 2);
});
it('receives postMessage messages sent from the WebContents, w/ MessagePorts', async () => {
const w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, contextIsolation: false } });
w.loadURL('about:blank');
w.webContents.executeJavaScript('require(\'electron\').ipcRenderer.postMessage(\'test\', null, [(new MessageChannel).port1])');
const [event] = await once(w.webContents.mainFrame.ipc, 'test');
expect(event.ports.length).to.equal(1);
});
it('handles invoke messages sent from the WebContents', async () => {
const w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, contextIsolation: false } });
w.loadURL('about:blank');
w.webContents.mainFrame.ipc.handle('test', (_event, arg) => arg * 2);
const result = await w.webContents.executeJavaScript('require(\'electron\').ipcRenderer.invoke(\'test\', 42)');
expect(result).to.equal(42 * 2);
});
it('cascades to WebContents and ipcMain', async () => {
const w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, contextIsolation: false } });
w.loadURL('about:blank');
let gotFromIpcMain = false;
let gotFromWebContents = false;
const ipcMainReceived = new Promise<void>(resolve => ipcMain.on('test', () => { gotFromIpcMain = true; resolve(); }));
const ipcWebContentsReceived = new Promise<boolean>(resolve => w.webContents.ipc.on('test', () => { gotFromWebContents = true; resolve(gotFromIpcMain); }));
const ipcReceived = new Promise<boolean>(resolve => w.webContents.mainFrame.ipc.on('test', () => { resolve(gotFromWebContents); }));
defer(() => ipcMain.removeAllListeners('test'));
w.webContents.executeJavaScript('require(\'electron\').ipcRenderer.send(\'test\', 42)');
// assert that they are delivered in the correct order
expect(await ipcReceived).to.be.false();
expect(await ipcWebContentsReceived).to.be.false();
await ipcMainReceived;
});
it('overrides ipcMain handlers', async () => {
const w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, contextIsolation: false } });
w.loadURL('about:blank');
w.webContents.mainFrame.ipc.handle('test', (_event, arg) => arg * 2);
ipcMain.handle('test', () => { throw new Error('should not be called'); });
defer(() => ipcMain.removeHandler('test'));
const result = await w.webContents.executeJavaScript('require(\'electron\').ipcRenderer.invoke(\'test\', 42)');
expect(result).to.equal(42 * 2);
});
it('overrides WebContents handlers', async () => {
const w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, contextIsolation: false } });
w.loadURL('about:blank');
w.webContents.ipc.handle('test', () => { throw new Error('should not be called'); });
w.webContents.mainFrame.ipc.handle('test', (_event, arg) => arg * 2);
ipcMain.handle('test', () => { throw new Error('should not be called'); });
defer(() => ipcMain.removeHandler('test'));
const result = await w.webContents.executeJavaScript('require(\'electron\').ipcRenderer.invoke(\'test\', 42)');
expect(result).to.equal(42 * 2);
});
it('falls back to WebContents handlers', async () => {
const w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, contextIsolation: false } });
w.loadURL('about:blank');
w.webContents.ipc.handle('test', (_event, arg) => { return arg * 2; });
const result = await w.webContents.executeJavaScript('require(\'electron\').ipcRenderer.invoke(\'test\', 42)');
expect(result).to.equal(42 * 2);
});
it('receives ipcs from child frames', async () => {
const server = http.createServer((req, res) => {
res.setHeader('content-type', 'text/html');
res.end('');
});
const { port } = await listen(server);
defer(() => {
server.close();
});
const w = new BrowserWindow({ show: false, webPreferences: { nodeIntegrationInSubFrames: true, preload: path.resolve(fixturesPath, 'preload-expose-ipc.js') } });
// Preloads don't run in about:blank windows, and file:// urls can't be loaded in iframes, so use a blank http page.
await w.loadURL(`data:text/html,<iframe src="http://localhost:${port}"></iframe>`);
w.webContents.mainFrame.frames[0].executeJavaScript('ipc.send(\'test\', 42)');
w.webContents.mainFrame.ipc.on('test', () => { throw new Error('should not be called'); });
const [, arg] = await once(w.webContents.mainFrame.frames[0].ipc, 'test');
expect(arg).to.equal(42);
});
});
});