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Frank John Begornia
347
node_modules/chromium-bidi/lib/cjs/bidiServer/WebSocketServer.js
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vendored
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347
node_modules/chromium-bidi/lib/cjs/bidiServer/WebSocketServer.js
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"use strict";
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var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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var desc = Object.getOwnPropertyDescriptor(m, k);
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if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
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desc = { enumerable: true, get: function() { return m[k]; } };
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}
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Object.defineProperty(o, k2, desc);
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}) : (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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o[k2] = m[k];
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}));
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var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
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Object.defineProperty(o, "default", { enumerable: true, value: v });
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}) : function(o, v) {
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o["default"] = v;
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});
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var __importStar = (this && this.__importStar) || function (mod) {
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if (mod && mod.__esModule) return mod;
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var result = {};
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if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
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__setModuleDefault(result, mod);
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return result;
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};
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var __importDefault = (this && this.__importDefault) || function (mod) {
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return (mod && mod.__esModule) ? mod : { "default": mod };
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.WebSocketServer = exports.debugInfo = void 0;
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/**
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* Copyright 2021 Google LLC.
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* Copyright (c) Microsoft Corporation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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const http_1 = __importDefault(require("http"));
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const debug_1 = __importDefault(require("debug"));
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const websocket = __importStar(require("websocket"));
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const uuid_js_1 = require("../utils/uuid.js");
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const BrowserInstance_js_1 = require("./BrowserInstance.js");
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exports.debugInfo = (0, debug_1.default)('bidi:server:info');
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const debugInternal = (0, debug_1.default)('bidi:server:internal');
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const debugSend = (0, debug_1.default)('bidi:server:SEND ▸');
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const debugRecv = (0, debug_1.default)('bidi:server:RECV ◂');
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class WebSocketServer {
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#sessions = new Map();
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#port;
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#channel;
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#headless;
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#verbose;
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#server;
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#wsServer;
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constructor(port, channel, headless, verbose) {
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this.#port = port;
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this.#channel = channel;
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this.#headless = headless;
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this.#verbose = verbose;
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this.#server = http_1.default.createServer(this.#onRequest.bind(this));
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this.#wsServer = new websocket.server({
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httpServer: this.#server,
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autoAcceptConnections: false,
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});
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this.#wsServer.on('request', this.#onWsRequest.bind(this));
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this.#server.listen(this.#port, () => {
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(0, exports.debugInfo)('BiDi server is listening on port', this.#port);
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});
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}
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async #onRequest(request, response) {
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debugInternal(`Received HTTP ${JSON.stringify(request.method)} request for ${JSON.stringify(request.url)}`);
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if (!request.url) {
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return response.end(404);
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}
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// https://w3c.github.io/webdriver-bidi/#transport, step 2.
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if (request.url === '/session') {
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const body = await new Promise((resolve, reject) => {
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const bodyArray = [];
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request.on('data', (chunk) => {
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bodyArray.push(chunk);
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});
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request.on('error', reject);
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request.on('end', () => {
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resolve(Buffer.concat(bodyArray));
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});
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});
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// https://w3c.github.io/webdriver-bidi/#transport, step 3.
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const jsonBody = JSON.parse(body.toString());
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response.writeHead(200, {
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'Content-Type': 'application/json;charset=utf-8',
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'Cache-Control': 'no-cache',
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});
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const sessionId = (0, uuid_js_1.uuidv4)();
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const session = {
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sessionId,
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// TODO: launch browser instance and set it to the session after WPT
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// tests clean up is switched to pure BiDi.
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browserInstancePromise: undefined,
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sessionOptions: {
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chromeOptions: this.#getChromeOptions(jsonBody.capabilities, this.#channel, this.#headless),
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mapperOptions: this.#getMapperOptions(jsonBody.capabilities),
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verbose: this.#verbose,
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},
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};
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this.#sessions.set(sessionId, session);
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const webSocketUrl = `ws://localhost:${this.#port}/session/${sessionId}`;
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debugInternal(`Session created. WebSocket URL: ${JSON.stringify(webSocketUrl)}.`);
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response.write(JSON.stringify({
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value: {
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sessionId,
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capabilities: {
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webSocketUrl,
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},
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},
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}));
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return response.end();
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}
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else if (request.url.startsWith('/session')) {
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debugInternal(`Unknown session command ${request.method ?? 'UNKNOWN METHOD'} request for ${request.url} with payload ${await this.#getHttpRequestPayload(request)}. 200 returned.`);
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response.writeHead(200, {
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'Content-Type': 'application/json;charset=utf-8',
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'Cache-Control': 'no-cache',
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});
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response.write(JSON.stringify({
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value: {},
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}));
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return response.end();
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}
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debugInternal(`Unknown ${request.method} request for ${JSON.stringify(request.url)} with payload ${await this.#getHttpRequestPayload(request)}. 404 returned.`);
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return response.end(404);
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}
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#onWsRequest(request) {
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// Session is set either by Classic or BiDi commands.
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let session;
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const requestSessionId = (request.resource ?? '').split('/').pop();
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debugInternal(`new WS request received. Path: ${JSON.stringify(request.resourceURL.path)}, sessionId: ${JSON.stringify(requestSessionId)}`);
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if (requestSessionId !== '' &&
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requestSessionId !== undefined &&
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!this.#sessions.has(requestSessionId)) {
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debugInternal('Unknown session id:', requestSessionId);
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request.reject();
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return;
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}
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const connection = request.accept();
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session = this.#sessions.get(requestSessionId ?? '');
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if (session !== undefined) {
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// BrowserInstance is created for each new WS connection, even for the
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// same SessionId. This is because WPT uses a single session for all the
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// tests, but cleans up tests using WebDriver Classic commands, which is
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// not implemented in this Mapper runner.
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// TODO: connect to an existing BrowserInstance instead.
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const sessionOptions = session.sessionOptions;
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session.browserInstancePromise = this.#closeBrowserInstanceIfLaunched(session)
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.then(async () => await this.#launchBrowserInstance(connection, sessionOptions))
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.catch((e) => {
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(0, exports.debugInfo)('Error while creating session', e);
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connection.close(500, 'cannot create browser instance');
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throw e;
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});
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}
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connection.on('message', async (message) => {
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// If type is not text, return error.
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if (message.type !== 'utf8') {
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this.#respondWithError(connection, {}, "invalid argument" /* ErrorCode.InvalidArgument */, `not supported type (${message.type})`);
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return;
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}
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const plainCommandData = message.utf8Data;
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if (debugRecv.enabled) {
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try {
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debugRecv(JSON.parse(plainCommandData));
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}
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catch {
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debugRecv(plainCommandData);
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}
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}
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// Try to parse the message to handle some of BiDi commands.
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let parsedCommandData;
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try {
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parsedCommandData = JSON.parse(plainCommandData);
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}
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catch (e) {
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this.#respondWithError(connection, {}, "invalid argument" /* ErrorCode.InvalidArgument */, `Cannot parse data as JSON`);
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return;
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}
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// Handle creating new session.
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if (parsedCommandData.method === 'session.new') {
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if (session !== undefined) {
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(0, exports.debugInfo)('WS connection already have an associated session.');
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this.#respondWithError(connection, plainCommandData, "session not created" /* ErrorCode.SessionNotCreated */, 'WS connection already have an associated session.');
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return;
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}
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try {
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const sessionOptions = {
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chromeOptions: this.#getChromeOptions(parsedCommandData.params?.capabilities, this.#channel, this.#headless),
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mapperOptions: this.#getMapperOptions(parsedCommandData.params?.capabilities),
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verbose: this.#verbose,
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};
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const browserInstance = await this.#launchBrowserInstance(connection, sessionOptions);
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const sessionId = (0, uuid_js_1.uuidv4)();
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session = {
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sessionId,
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browserInstancePromise: Promise.resolve(browserInstance),
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sessionOptions,
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};
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this.#sessions.set(sessionId, session);
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}
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catch (e) {
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(0, exports.debugInfo)('Error while creating session', e);
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this.#respondWithError(connection, plainCommandData, "session not created" /* ErrorCode.SessionNotCreated */, e?.message ?? 'Unknown error');
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return;
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}
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// TODO: extend with capabilities.
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this.#sendClientMessage({
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id: parsedCommandData.id,
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type: 'success',
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result: {
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sessionId: session.sessionId,
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capabilities: {},
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},
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}, connection);
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return;
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}
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if (session === undefined) {
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(0, exports.debugInfo)('Session is not yet initialized.');
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this.#respondWithError(connection, plainCommandData, "invalid session id" /* ErrorCode.InvalidSessionId */, 'Session is not yet initialized.');
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return;
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}
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if (session.browserInstancePromise === undefined) {
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(0, exports.debugInfo)('Browser instance is not launched.');
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this.#respondWithError(connection, plainCommandData, "invalid session id" /* ErrorCode.InvalidSessionId */, 'Browser instance is not launched.');
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return;
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}
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const browserInstance = await session.browserInstancePromise;
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// Handle `browser.close` command.
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if (parsedCommandData.method === 'browser.close') {
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await browserInstance.close();
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this.#sendClientMessage({
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id: parsedCommandData.id,
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type: 'success',
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result: {},
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}, connection);
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return;
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}
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// Forward all other commands to BiDi Mapper.
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await browserInstance.bidiSession().sendCommand(plainCommandData);
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});
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connection.on('close', async () => {
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debugInternal(`Peer ${connection.remoteAddress} disconnected.`);
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// TODO: don't close Browser instance to allow re-connecting to the session.
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await this.#closeBrowserInstanceIfLaunched(session);
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});
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}
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async #closeBrowserInstanceIfLaunched(session) {
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if (session === undefined || session.browserInstancePromise === undefined) {
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return;
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}
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const browserInstance = await session.browserInstancePromise;
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session.browserInstancePromise = undefined;
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void browserInstance.close();
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}
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#getMapperOptions(capabilities) {
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const acceptInsecureCerts = capabilities?.alwaysMatch?.acceptInsecureCerts ?? false;
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const sharedIdWithFrame = capabilities?.alwaysMatch?.sharedIdWithFrame ?? false;
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return { acceptInsecureCerts, sharedIdWithFrame };
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}
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#getChromeOptions(capabilities, channel, headless) {
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const chromeCapabilities = capabilities?.alwaysMatch?.['goog:chromeOptions'];
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return {
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chromeArgs: chromeCapabilities?.args ?? [],
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channel,
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headless,
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chromeBinary: chromeCapabilities?.binary ?? undefined,
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};
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}
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async #launchBrowserInstance(connection, sessionOptions) {
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(0, exports.debugInfo)('Scheduling browser launch...');
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const browserInstance = await BrowserInstance_js_1.BrowserInstance.run(sessionOptions.chromeOptions, sessionOptions.mapperOptions, sessionOptions.verbose);
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// Forward messages from BiDi Mapper to the client unconditionally.
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browserInstance.bidiSession().on('message', (message) => {
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this.#sendClientMessageString(message, connection);
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});
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(0, exports.debugInfo)('Browser is launched!');
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return browserInstance;
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}
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#sendClientMessageString(message, connection) {
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if (debugSend.enabled) {
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try {
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debugSend(JSON.parse(message));
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}
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catch {
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debugSend(message);
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}
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}
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connection.sendUTF(message);
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}
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#sendClientMessage(object, connection) {
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const json = JSON.stringify(object);
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return this.#sendClientMessageString(json, connection);
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}
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#respondWithError(connection, plainCommandData, errorCode, errorMessage) {
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const errorResponse = this.#getErrorResponse(plainCommandData, errorCode, errorMessage);
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void this.#sendClientMessage(errorResponse, connection);
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}
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#getErrorResponse(plainCommandData, errorCode, errorMessage) {
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// XXX: this is bizarre per spec. We reparse the payload and
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// extract the ID, regardless of what kind of value it was.
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let commandId;
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try {
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const commandData = JSON.parse(plainCommandData);
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if ('id' in commandData) {
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commandId = commandData.id;
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}
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}
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catch { }
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return {
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type: 'error',
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id: commandId,
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error: errorCode,
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message: errorMessage,
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// XXX: optional stacktrace field.
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};
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}
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#getHttpRequestPayload(request) {
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return new Promise((resolve, reject) => {
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let data = '';
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request.on('data', (chunk) => {
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data += chunk;
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});
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request.on('end', () => {
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resolve(data);
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});
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request.on('error', (error) => {
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reject(error);
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});
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});
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}
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}
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exports.WebSocketServer = WebSocketServer;
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//# sourceMappingURL=WebSocketServer.js.map
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