node_modules/chromium-bidi/lib/esm/bidiServer/WebSocketServer.js - devtools/devtools-frontend.git - Git at Google

 /**
  * Copyright 2021 Google LLC.
  * Copyright (c) Microsoft Corporation.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *     http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 import http from 'http';
 import debug from 'debug';
 import * as websocket from 'websocket';
 import { Deferred } from '../utils/Deferred.js';
 import { uuidv4 } from '../utils/uuid.js';
 import { BrowserInstance } from './BrowserInstance.js';
 export const debugInfo = debug('bidi:server:info');
 const debugInternal = debug('bidi:server:internal');
 const debugSend = debug('bidi:server:SEND ▸');
 const debugRecv = debug('bidi:server:RECV ◂');
 export class WebSocketServer {
     #sessions = new Map();
     #port;
     #verbose;
     #server;
     #wsServer;
     constructor(port, verbose) {
         this.#port = port;
         this.#verbose = verbose;
         this.#server = http.createServer((request, response) => {
             return this.#onRequest(request, response).catch((e) => {
                 debugInfo('Error while processing request', e);
                 response.writeHead(500, String(e));
             });
         });
         this.#wsServer = new websocket.server({
             httpServer: this.#server,
             autoAcceptConnections: false,
         });
         this.#wsServer.on('request', this.#onWsRequest.bind(this));
         void this.#listen();
     }
     #logServerStarted() {
         debugInfo('BiDi server is listening on port', this.#port);
         debugInfo('BiDi server was started successfully.');
     }
     async #listen() {
         try {
             this.#server.listen(this.#port, () => {
                 this.#logServerStarted();
             });
         }
         catch (error) {
             if (error &&
                 typeof error === 'object' &&
                 'code' in error &&
                 error.code === 'EADDRINUSE') {
                 await new Promise((resolve) => {
                     setTimeout(resolve, 500);
                 });
                 debugInfo('Retrying to run BiDi server');
                 this.#server.listen(this.#port, () => {
                     this.#logServerStarted();
                 });
             }
             throw error;
         }
     }
     async #onRequest(request, response) {
         debugInternal(`Received HTTP ${JSON.stringify(request.method)} request for ${JSON.stringify(request.url)}`);
         if (!request.url) {
             throw new Error('Request URL is empty.');
         }
         // https://w3c.github.io/webdriver-bidi/#transport, step 2.
         if (request.url === '/session') {
             const body = await new Promise((resolve, reject) => {
                 const bodyArray = [];
                 request.on('data', (chunk) => {
                     bodyArray.push(chunk);
                 });
                 request.on('error', reject);
                 request.on('end', () => {
                     resolve(Buffer.concat(bodyArray));
                 });
             });
             debugInternal(`Creating session by HTTP request ${body.toString()}`);
             // https://w3c.github.io/webdriver-bidi/#transport, step 3.
             const jsonBody = JSON.parse(body.toString());
             response.writeHead(200, {
                 'Content-Type': 'application/json;charset=utf-8',
                 'Cache-Control': 'no-cache',
             });
             const sessionId = uuidv4();
             const session = {
                 sessionId,
                 // TODO: launch browser instance and set it to the session after WPT
                 //  tests clean up is switched to pure BiDi.
                 browserInstancePromise: undefined,
                 sessionOptions: {
                     chromeOptions: this.#getChromeOptions(jsonBody.capabilities),
                     verbose: this.#verbose,
                     sessionNewBody: `{"id":0,"method":"session.new","params":${body.toString()}}`,
                 },
             };
             this.#sessions.set(sessionId, session);
             const webSocketUrl = `ws://localhost:${this.#port}/session/${sessionId}`;
             debugInternal(`Session created. WebSocket URL: ${JSON.stringify(webSocketUrl)}.`);
             response.write(JSON.stringify({
                 value: {
                     sessionId,
                     capabilities: {
                         webSocketUrl,
                     },
                 },
             }));
             return response.end();
         }
         else if (request.url.startsWith('/session')) {
             debugInternal(`Unknown session command ${request.method ?? 'UNKNOWN METHOD'} request for ${request.url} with payload ${await this.#getHttpRequestPayload(request)}. 200 returned.`);
             response.writeHead(200, {
                 'Content-Type': 'application/json;charset=utf-8',
                 'Cache-Control': 'no-cache',
             });
             response.write(JSON.stringify({
                 value: {},
             }));
             return response.end();
         }
         throw new Error(`Unknown "${request.method}" request for "${JSON.stringify(request.url)}" with payload "${await this.#getHttpRequestPayload(request)}".`);
     }
     #onWsRequest(request) {
         // Session is set either by Classic or BiDi commands.
         let session;
         // Request to `/session` should be treated as a new session request.
         let requestSessionId = '';
         if ((request.resource ?? '').startsWith(`/session/`)) {
             requestSessionId = (request.resource ?? '').split('/').pop() ?? '';
         }
         debugInternal(`new WS request received. Path: ${JSON.stringify(request.resourceURL.path)}, sessionId: ${JSON.stringify(requestSessionId)}`);
         if (requestSessionId !== '' &&
             requestSessionId !== undefined &&
             !this.#sessions.has(requestSessionId)) {
             debugInternal('Unknown session id:', requestSessionId);
             request.reject();
             return;
         }
         const connection = request.accept();
         session = this.#sessions.get(requestSessionId ?? '');
         if (session !== undefined) {
             // BrowserInstance is created for each new WS connection, even for the
             // same SessionId. This is because WPT uses a single session for all the
             // tests, but cleans up tests using WebDriver Classic commands, which is
             // not implemented in this Mapper runner.
             // TODO: connect to an existing BrowserInstance instead.
             const sessionOptions = session.sessionOptions;
             session.browserInstancePromise = this.#closeBrowserInstanceIfLaunched(session)
                 .then(async () => await this.#launchBrowserInstance(connection, sessionOptions))
                 .catch((e) => {
                 debugInfo('Error while creating session', e);
                 connection.close(500, 'cannot create browser instance');
                 throw e;
             });
         }
         connection.on('message', async (message) => {
             // If type is not text, return error.
             if (message.type !== 'utf8') {
                 this.#respondWithError(connection, {}, "invalid argument" /* ErrorCode.InvalidArgument */, `not supported type (${message.type})`);
                 return;
             }
             const plainCommandData = message.utf8Data;
             if (debugRecv.enabled) {
                 try {
                     debugRecv(JSON.parse(plainCommandData));
                 }
                 catch {
                     debugRecv(plainCommandData);
                 }
             }
             // Try to parse the message to handle some of BiDi commands.
             let parsedCommandData;
             try {
                 parsedCommandData = JSON.parse(plainCommandData);
             }
             catch (error) {
                 this.#respondWithError(connection, {}, "invalid argument" /* ErrorCode.InvalidArgument */, `unable to parse BiDi command: ${error}`);
                 return;
             }
             // Handle creating new session.
             if (parsedCommandData.method === 'session.new') {
                 if (session !== undefined) {
                     debugInfo('WS connection already have an associated session.');
                     this.#respondWithError(connection, plainCommandData, "session not created" /* ErrorCode.SessionNotCreated */, 'WS connection already have an associated session.');
                     return;
                 }
                 try {
                     const sessionOptions = {
                         chromeOptions: this.#getChromeOptions(parsedCommandData.params?.capabilities),
                         verbose: this.#verbose,
                         sessionNewBody: plainCommandData,
                     };
                     const browserInstance = await this.#launchBrowserInstance(connection, sessionOptions, true);
                     const sessionId = uuidv4();
                     session = {
                         sessionId,
                         browserInstancePromise: Promise.resolve(browserInstance),
                         sessionOptions,
                     };
                     this.#sessions.set(sessionId, session);
                 }
                 catch (e) {
                     debugInfo('Error while creating session', e);
                     this.#respondWithError(connection, plainCommandData, "session not created" /* ErrorCode.SessionNotCreated */, e?.message ?? 'Unknown error');
                     return;
                 }
                 return;
             }
             // Handle ending session. Close browser if open, remove session.
             if (parsedCommandData.method === 'session.end') {
                 if (session === undefined) {
                     debugInfo('WS connection does not have an associated session.');
                     this.#respondWithError(connection, plainCommandData, "session not created" /* ErrorCode.SessionNotCreated */, 'WS connection does not have an associated session.');
                     return;
                 }
                 try {
                     await this.#closeBrowserInstanceIfLaunched(session);
                     this.#sessions.delete(session.sessionId);
                 }
                 catch (e) {
                     debugInfo('Error while closing session', e);
                     this.#respondWithError(connection, plainCommandData, "unknown error" /* ErrorCode.UnknownError */, `Session cannot be closed. Error: ${e?.message}`);
                     return;
                 }
                 this.#sendClientMessage({
                     id: parsedCommandData.id,
                     type: 'success',
                     result: {},
                 }, connection);
                 return;
             }
             if (session === undefined) {
                 debugInfo('Session is not yet initialized.');
                 this.#respondWithError(connection, plainCommandData, "invalid session id" /* ErrorCode.InvalidSessionId */, 'Session is not yet initialized.');
                 return;
             }
             if (session.browserInstancePromise === undefined) {
                 debugInfo('Browser instance is not launched.');
                 this.#respondWithError(connection, plainCommandData, "invalid session id" /* ErrorCode.InvalidSessionId */, 'Browser instance is not launched.');
                 return;
             }
             const browserInstance = await session.browserInstancePromise;
             // Handle `browser.close` command.
             if (parsedCommandData.method === 'browser.close') {
                 await browserInstance.close();
                 this.#sendClientMessage({
                     id: parsedCommandData.id,
                     type: 'success',
                     result: {},
                 }, connection);
                 return;
             }
             // Forward all other commands to BiDi Mapper.
             await browserInstance.bidiSession().sendCommand(plainCommandData);
         });
         connection.on('close', async () => {
             debugInternal(`Peer ${connection.remoteAddress} disconnected.`);
             // TODO: don't close Browser instance to allow re-connecting to the session.
             await this.#closeBrowserInstanceIfLaunched(session);
         });
     }
     async #closeBrowserInstanceIfLaunched(session) {
         if (session === undefined || session.browserInstancePromise === undefined) {
             return;
         }
         const browserInstance = await session.browserInstancePromise;
         session.browserInstancePromise = undefined;
         void browserInstance.close();
     }
     #getChromeOptions(capabilities) {
         const chromeCapabilities = capabilities?.alwaysMatch?.['goog:chromeOptions'];
         return {
             chromeArgs: chromeCapabilities?.args ?? [],
             chromeBinary: chromeCapabilities?.binary ?? undefined,
         };
     }
     async #launchBrowserInstance(connection, sessionOptions, passSessionNewThrough = false) {
         debugInfo('Scheduling browser launch...');
         const browserInstance = await BrowserInstance.run(sessionOptions.chromeOptions, sessionOptions.verbose);
         const body = JSON.parse(sessionOptions.sessionNewBody);
         const id = body.id;
         const sessionCreated = new Deferred();
         const sessionResponseListener = (message) => {
             const jsonMessage = JSON.parse(message);
             if (jsonMessage['id'] === id) {
                 debugInfo('Receiving session.new response from mapper', message);
                 sessionCreated.resolve();
                 if (passSessionNewThrough) {
                     this.#sendClientMessageString(message, connection);
                 }
             }
         };
         browserInstance.bidiSession().on('message', sessionResponseListener);
         debugInfo('Sending session.new to mapper', sessionOptions.sessionNewBody);
         await browserInstance
             .bidiSession()
             .sendCommand(sessionOptions.sessionNewBody);
         await sessionCreated;
         browserInstance.bidiSession().off('message', sessionResponseListener);
         // Forward messages from BiDi Mapper to the client unconditionally.
         browserInstance.bidiSession().on('message', (message) => {
             this.#sendClientMessageString(message, connection);
         });
         debugInfo('Browser is launched!');
         return browserInstance;
     }
     #sendClientMessageString(message, connection) {
         if (debugSend.enabled) {
             try {
                 debugSend(JSON.parse(message));
             }
             catch {
                 debugSend(message);
             }
         }
         connection.sendUTF(message);
     }
     #sendClientMessage(object, connection) {
         const json = JSON.stringify(object);
         return this.#sendClientMessageString(json, connection);
     }
     #respondWithError(connection, plainCommandData, errorCode, errorMessage) {
         const errorResponse = this.#getErrorResponse(plainCommandData, errorCode, errorMessage);
         void this.#sendClientMessage(errorResponse, connection);
     }
     #getErrorResponse(plainCommandData, errorCode, errorMessage) {
         // XXX: this is bizarre per spec. We reparse the payload and
         // extract the ID, regardless of what kind of value it was.
         let commandId;
         try {
             const commandData = JSON.parse(plainCommandData);
             if ('id' in commandData) {
                 commandId = commandData.id;
             }
         }
         catch { }
         return {
             type: 'error',
             id: commandId,
             error: errorCode,
             message: errorMessage,
             // XXX: optional stacktrace field.
         };
     }
     #getHttpRequestPayload(request) {
         return new Promise((resolve, reject) => {
             let data = '';
             request.on('data', (chunk) => {
                 data += chunk;
             });
             request.on('end', () => {
                 resolve(data);
             });
             request.on('error', (error) => {
                 reject(error);
             });
         });
     }
 }
 //# sourceMappingURL=WebSocketServer.js.map
	/**
	* Copyright 2021 Google LLC.
	* Copyright (c) Microsoft Corporation.
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/
	import http from 'http';
	import debug from 'debug';
	import * as websocket from 'websocket';
	import { Deferred } from '../utils/Deferred.js';
	import { uuidv4 } from '../utils/uuid.js';
	import { BrowserInstance } from './BrowserInstance.js';
	export const debugInfo = debug('bidi:server:info');
	const debugInternal = debug('bidi:server:internal');
	const debugSend = debug('bidi:server:SEND ▸');
	const debugRecv = debug('bidi:server:RECV ◂');
	export class WebSocketServer {
	#sessions = new Map();
	#port;
	#verbose;
	#server;
	#wsServer;
	constructor(port, verbose) {
	this.#port = port;
	this.#verbose = verbose;
	this.#server = http.createServer((request, response) => {
	return this.#onRequest(request, response).catch((e) => {
	debugInfo('Error while processing request', e);
	response.writeHead(500, String(e));
	});
	});
	this.#wsServer = new websocket.server({
	httpServer: this.#server,
	autoAcceptConnections: false,
	});
	this.#wsServer.on('request', this.#onWsRequest.bind(this));
	void this.#listen();
	}
	#logServerStarted() {
	debugInfo('BiDi server is listening on port', this.#port);
	debugInfo('BiDi server was started successfully.');
	}
	async #listen() {
	try {
	this.#server.listen(this.#port, () => {
	this.#logServerStarted();
	});
	}
	catch (error) {
	if (error &&
	typeof error === 'object' &&
	'code' in error &&
	error.code === 'EADDRINUSE') {
	await new Promise((resolve) => {
	setTimeout(resolve, 500);
	});
	debugInfo('Retrying to run BiDi server');
	this.#server.listen(this.#port, () => {
	this.#logServerStarted();
	});
	}
	throw error;
	}
	}
	async #onRequest(request, response) {
	debugInternal(`Received HTTP ${JSON.stringify(request.method)} request for ${JSON.stringify(request.url)}`);
	if (!request.url) {
	throw new Error('Request URL is empty.');
	}
	// https://w3c.github.io/webdriver-bidi/#transport, step 2.
	if (request.url === '/session') {
	const body = await new Promise((resolve, reject) => {
	const bodyArray = [];
	request.on('data', (chunk) => {
	bodyArray.push(chunk);
	});
	request.on('error', reject);
	request.on('end', () => {
	resolve(Buffer.concat(bodyArray));
	});
	});
	debugInternal(`Creating session by HTTP request ${body.toString()}`);
	// https://w3c.github.io/webdriver-bidi/#transport, step 3.
	const jsonBody = JSON.parse(body.toString());
	response.writeHead(200, {
	'Content-Type': 'application/json;charset=utf-8',
	'Cache-Control': 'no-cache',
	});
	const sessionId = uuidv4();
	const session = {
	sessionId,
	// TODO: launch browser instance and set it to the session after WPT
	// tests clean up is switched to pure BiDi.
	browserInstancePromise: undefined,
	sessionOptions: {
	chromeOptions: this.#getChromeOptions(jsonBody.capabilities),
	verbose: this.#verbose,
	sessionNewBody: `{"id":0,"method":"session.new","params":${body.toString()}}`,
	},
	};
	this.#sessions.set(sessionId, session);
	const webSocketUrl = `ws://localhost:${this.#port}/session/${sessionId}`;
	debugInternal(`Session created. WebSocket URL: ${JSON.stringify(webSocketUrl)}.`);
	response.write(JSON.stringify({
	value: {
	sessionId,
	capabilities: {
	webSocketUrl,
	},
	},
	}));
	return response.end();
	}
	else if (request.url.startsWith('/session')) {
	debugInternal(`Unknown session command ${request.method ?? 'UNKNOWN METHOD'} request for ${request.url} with payload ${await this.#getHttpRequestPayload(request)}. 200 returned.`);
	response.writeHead(200, {
	'Content-Type': 'application/json;charset=utf-8',
	'Cache-Control': 'no-cache',
	});
	response.write(JSON.stringify({
	value: {},
	}));
	return response.end();
	}
	throw new Error(`Unknown "${request.method}" request for "${JSON.stringify(request.url)}" with payload "${await this.#getHttpRequestPayload(request)}".`);
	}
	#onWsRequest(request) {
	// Session is set either by Classic or BiDi commands.
	let session;
	// Request to `/session` should be treated as a new session request.
	let requestSessionId = '';
	if ((request.resource ?? '').startsWith(`/session/`)) {
	requestSessionId = (request.resource ?? '').split('/').pop() ?? '';
	}
	debugInternal(`new WS request received. Path: ${JSON.stringify(request.resourceURL.path)}, sessionId: ${JSON.stringify(requestSessionId)}`);
	if (requestSessionId !== '' &&
	requestSessionId !== undefined &&
	!this.#sessions.has(requestSessionId)) {
	debugInternal('Unknown session id:', requestSessionId);
	request.reject();
	return;
	}
	const connection = request.accept();
	session = this.#sessions.get(requestSessionId ?? '');
	if (session !== undefined) {
	// BrowserInstance is created for each new WS connection, even for the
	// same SessionId. This is because WPT uses a single session for all the
	// tests, but cleans up tests using WebDriver Classic commands, which is
	// not implemented in this Mapper runner.
	// TODO: connect to an existing BrowserInstance instead.
	const sessionOptions = session.sessionOptions;
	session.browserInstancePromise = this.#closeBrowserInstanceIfLaunched(session)
	.then(async () => await this.#launchBrowserInstance(connection, sessionOptions))
	.catch((e) => {
	debugInfo('Error while creating session', e);
	connection.close(500, 'cannot create browser instance');
	throw e;
	});
	}
	connection.on('message', async (message) => {
	// If type is not text, return error.
	if (message.type !== 'utf8') {
	this.#respondWithError(connection, {}, "invalid argument" /* ErrorCode.InvalidArgument */, `not supported type (${message.type})`);
	return;
	}
	const plainCommandData = message.utf8Data;
	if (debugRecv.enabled) {
	try {
	debugRecv(JSON.parse(plainCommandData));
	}
	catch {
	debugRecv(plainCommandData);
	}
	}
	// Try to parse the message to handle some of BiDi commands.
	let parsedCommandData;
	try {
	parsedCommandData = JSON.parse(plainCommandData);
	}
	catch (error) {
	this.#respondWithError(connection, {}, "invalid argument" /* ErrorCode.InvalidArgument */, `unable to parse BiDi command: ${error}`);
	return;
	}
	// Handle creating new session.
	if (parsedCommandData.method === 'session.new') {
	if (session !== undefined) {
	debugInfo('WS connection already have an associated session.');
	this.#respondWithError(connection, plainCommandData, "session not created" /* ErrorCode.SessionNotCreated */, 'WS connection already have an associated session.');
	return;
	}
	try {
	const sessionOptions = {
	chromeOptions: this.#getChromeOptions(parsedCommandData.params?.capabilities),
	verbose: this.#verbose,
	sessionNewBody: plainCommandData,
	};
	const browserInstance = await this.#launchBrowserInstance(connection, sessionOptions, true);
	const sessionId = uuidv4();
	session = {
	sessionId,
	browserInstancePromise: Promise.resolve(browserInstance),
	sessionOptions,
	};
	this.#sessions.set(sessionId, session);
	}
	catch (e) {
	debugInfo('Error while creating session', e);
	this.#respondWithError(connection, plainCommandData, "session not created" /* ErrorCode.SessionNotCreated */, e?.message ?? 'Unknown error');
	return;
	}
	return;
	}
	// Handle ending session. Close browser if open, remove session.
	if (parsedCommandData.method === 'session.end') {
	if (session === undefined) {
	debugInfo('WS connection does not have an associated session.');
	this.#respondWithError(connection, plainCommandData, "session not created" /* ErrorCode.SessionNotCreated */, 'WS connection does not have an associated session.');
	return;
	}
	try {
	await this.#closeBrowserInstanceIfLaunched(session);
	this.#sessions.delete(session.sessionId);
	}
	catch (e) {
	debugInfo('Error while closing session', e);
	this.#respondWithError(connection, plainCommandData, "unknown error" /* ErrorCode.UnknownError */, `Session cannot be closed. Error: ${e?.message}`);
	return;
	}
	this.#sendClientMessage({
	id: parsedCommandData.id,
	type: 'success',
	result: {},
	}, connection);
	return;
	}
	if (session === undefined) {
	debugInfo('Session is not yet initialized.');
	this.#respondWithError(connection, plainCommandData, "invalid session id" /* ErrorCode.InvalidSessionId */, 'Session is not yet initialized.');
	return;
	}
	if (session.browserInstancePromise === undefined) {
	debugInfo('Browser instance is not launched.');
	this.#respondWithError(connection, plainCommandData, "invalid session id" /* ErrorCode.InvalidSessionId */, 'Browser instance is not launched.');
	return;
	}
	const browserInstance = await session.browserInstancePromise;
	// Handle `browser.close` command.
	if (parsedCommandData.method === 'browser.close') {
	await browserInstance.close();
	this.#sendClientMessage({
	id: parsedCommandData.id,
	type: 'success',
	result: {},
	}, connection);
	return;
	}
	// Forward all other commands to BiDi Mapper.
	await browserInstance.bidiSession().sendCommand(plainCommandData);
	});
	connection.on('close', async () => {
	debugInternal(`Peer ${connection.remoteAddress} disconnected.`);
	// TODO: don't close Browser instance to allow re-connecting to the session.
	await this.#closeBrowserInstanceIfLaunched(session);
	});
	}
	async #closeBrowserInstanceIfLaunched(session) {
	if (session === undefined \|\| session.browserInstancePromise === undefined) {
	return;
	}
	const browserInstance = await session.browserInstancePromise;
	session.browserInstancePromise = undefined;
	void browserInstance.close();
	}
	#getChromeOptions(capabilities) {
	const chromeCapabilities = capabilities?.alwaysMatch?.['goog:chromeOptions'];
	return {
	chromeArgs: chromeCapabilities?.args ?? [],
	chromeBinary: chromeCapabilities?.binary ?? undefined,
	};
	}
	async #launchBrowserInstance(connection, sessionOptions, passSessionNewThrough = false) {
	debugInfo('Scheduling browser launch...');
	const browserInstance = await BrowserInstance.run(sessionOptions.chromeOptions, sessionOptions.verbose);
	const body = JSON.parse(sessionOptions.sessionNewBody);
	const id = body.id;
	const sessionCreated = new Deferred();
	const sessionResponseListener = (message) => {
	const jsonMessage = JSON.parse(message);
	if (jsonMessage['id'] === id) {
	debugInfo('Receiving session.new response from mapper', message);
	sessionCreated.resolve();
	if (passSessionNewThrough) {
	this.#sendClientMessageString(message, connection);
	}
	}
	};
	browserInstance.bidiSession().on('message', sessionResponseListener);
	debugInfo('Sending session.new to mapper', sessionOptions.sessionNewBody);
	await browserInstance
	.bidiSession()
	.sendCommand(sessionOptions.sessionNewBody);
	await sessionCreated;
	browserInstance.bidiSession().off('message', sessionResponseListener);
	// Forward messages from BiDi Mapper to the client unconditionally.
	browserInstance.bidiSession().on('message', (message) => {
	this.#sendClientMessageString(message, connection);
	});
	debugInfo('Browser is launched!');
	return browserInstance;
	}
	#sendClientMessageString(message, connection) {
	if (debugSend.enabled) {
	try {
	debugSend(JSON.parse(message));
	}
	catch {
	debugSend(message);
	}
	}
	connection.sendUTF(message);
	}
	#sendClientMessage(object, connection) {
	const json = JSON.stringify(object);
	return this.#sendClientMessageString(json, connection);
	}
	#respondWithError(connection, plainCommandData, errorCode, errorMessage) {
	const errorResponse = this.#getErrorResponse(plainCommandData, errorCode, errorMessage);
	void this.#sendClientMessage(errorResponse, connection);
	}
	#getErrorResponse(plainCommandData, errorCode, errorMessage) {
	// XXX: this is bizarre per spec. We reparse the payload and
	// extract the ID, regardless of what kind of value it was.
	let commandId;
	try {
	const commandData = JSON.parse(plainCommandData);
	if ('id' in commandData) {
	commandId = commandData.id;
	}
	}
	catch { }
	return {
	type: 'error',
	id: commandId,
	error: errorCode,
	message: errorMessage,
	// XXX: optional stacktrace field.
	};
	}
	#getHttpRequestPayload(request) {
	return new Promise((resolve, reject) => {
	let data = '';
	request.on('data', (chunk) => {
	data += chunk;
	});
	request.on('end', () => {
	resolve(data);
	});
	request.on('error', (error) => {
	reject(error);
	});
	});
	}
	}
	//# sourceMappingURL=WebSocketServer.js.map