228 lines
8.2 KiB
JavaScript
228 lines
8.2 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.kBrowserCloseMessageId = exports.ConnectionEvents = exports.CRSession = exports.CRConnection = exports.CDPSession = void 0;
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var _utils = require("../../utils");
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var _events = require("events");
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var _debugLogger = require("../../utils/debugLogger");
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var _helper = require("../helper");
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var _protocolError = require("../protocolError");
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/**
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* Copyright 2017 Google Inc. All rights reserved.
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* Modifications 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 ConnectionEvents = exports.ConnectionEvents = {
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Disconnected: Symbol('ConnectionEvents.Disconnected')
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};
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// CRPlaywright uses this special id to issue Browser.close command which we
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// should ignore.
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const kBrowserCloseMessageId = exports.kBrowserCloseMessageId = -9999;
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class CRConnection extends _events.EventEmitter {
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constructor(transport, protocolLogger, browserLogsCollector) {
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super();
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this._lastId = 0;
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this._transport = void 0;
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this._sessions = new Map();
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this._protocolLogger = void 0;
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this._browserLogsCollector = void 0;
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this._browserDisconnectedLogs = void 0;
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this.rootSession = void 0;
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this._closed = false;
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this.setMaxListeners(0);
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this._transport = transport;
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this._protocolLogger = protocolLogger;
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this._browserLogsCollector = browserLogsCollector;
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this.rootSession = new CRSession(this, null, '');
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this._sessions.set('', this.rootSession);
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this._transport.onmessage = this._onMessage.bind(this);
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// onclose should be set last, since it can be immediately called.
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this._transport.onclose = this._onClose.bind(this);
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}
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_rawSend(sessionId, method, params) {
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const id = ++this._lastId;
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const message = {
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id,
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method,
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params
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};
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if (sessionId) message.sessionId = sessionId;
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this._protocolLogger('send', message);
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this._transport.send(message);
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return id;
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}
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async _onMessage(message) {
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this._protocolLogger('receive', message);
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if (message.id === kBrowserCloseMessageId) return;
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const session = this._sessions.get(message.sessionId || '');
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if (session) session._onMessage(message);
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}
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_onClose(reason) {
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this._closed = true;
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this._transport.onmessage = undefined;
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this._transport.onclose = undefined;
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this._browserDisconnectedLogs = _helper.helper.formatBrowserLogs(this._browserLogsCollector.recentLogs(), reason);
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this.rootSession.dispose();
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Promise.resolve().then(() => this.emit(ConnectionEvents.Disconnected));
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}
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close() {
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if (!this._closed) this._transport.close();
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}
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async createBrowserSession() {
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const {
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sessionId
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} = await this.rootSession.send('Target.attachToBrowserTarget');
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return new CDPSession(this.rootSession, sessionId);
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}
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}
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exports.CRConnection = CRConnection;
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class CRSession extends _events.EventEmitter {
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constructor(connection, parentSession, sessionId, eventListener) {
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super();
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this._connection = void 0;
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this._eventListener = void 0;
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this._callbacks = new Map();
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this._sessionId = void 0;
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this._parentSession = void 0;
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this._crashed = false;
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this._closed = false;
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this.on = void 0;
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this.addListener = void 0;
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this.off = void 0;
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this.removeListener = void 0;
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this.once = void 0;
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this.setMaxListeners(0);
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this._connection = connection;
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this._parentSession = parentSession;
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this._sessionId = sessionId;
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this._eventListener = eventListener;
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this.on = super.on;
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this.addListener = super.addListener;
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this.off = super.removeListener;
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this.removeListener = super.removeListener;
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this.once = super.once;
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}
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_markAsCrashed() {
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this._crashed = true;
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}
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createChildSession(sessionId, eventListener) {
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const session = new CRSession(this._connection, this, sessionId, eventListener);
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this._connection._sessions.set(sessionId, session);
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return session;
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}
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async send(method, params) {
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if (this._crashed || this._closed || this._connection._closed || this._connection._browserDisconnectedLogs) throw new _protocolError.ProtocolError(this._crashed ? 'crashed' : 'closed', undefined, this._connection._browserDisconnectedLogs);
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const id = this._connection._rawSend(this._sessionId, method, params);
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return new Promise((resolve, reject) => {
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this._callbacks.set(id, {
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resolve,
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reject,
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error: new _protocolError.ProtocolError('error', method)
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});
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});
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}
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_sendMayFail(method, params) {
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return this.send(method, params).catch(error => _debugLogger.debugLogger.log('error', error));
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}
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_onMessage(object) {
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var _object$error;
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if (object.id && this._callbacks.has(object.id)) {
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const callback = this._callbacks.get(object.id);
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this._callbacks.delete(object.id);
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if (object.error) {
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callback.error.setMessage(object.error.message);
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callback.reject(callback.error);
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} else {
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callback.resolve(object.result);
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}
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} else if (object.id && ((_object$error = object.error) === null || _object$error === void 0 ? void 0 : _object$error.code) === -32001) {
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// Message to a closed session, just ignore it.
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} else {
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var _object$error2;
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(0, _utils.assert)(!object.id, (object === null || object === void 0 || (_object$error2 = object.error) === null || _object$error2 === void 0 ? void 0 : _object$error2.message) || undefined);
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Promise.resolve().then(() => {
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if (this._eventListener) this._eventListener(object.method, object.params);
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this.emit(object.method, object.params);
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});
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}
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}
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async detach() {
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if (this._closed) throw new Error(`Session already detached. Most likely the page has been closed.`);
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if (!this._parentSession) throw new Error('Root session cannot be closed');
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// Ideally, detaching should resume any target, but there is a bug in the backend,
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// so we must Runtime.runIfWaitingForDebugger first.
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await this._sendMayFail('Runtime.runIfWaitingForDebugger');
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await this._parentSession.send('Target.detachFromTarget', {
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sessionId: this._sessionId
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});
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this.dispose();
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}
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dispose() {
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this._closed = true;
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this._connection._sessions.delete(this._sessionId);
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for (const callback of this._callbacks.values()) {
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callback.error.setMessage(`Internal server error, session closed.`);
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callback.error.type = this._crashed ? 'crashed' : 'closed';
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callback.error.logs = this._connection._browserDisconnectedLogs;
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callback.reject(callback.error);
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}
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this._callbacks.clear();
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}
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}
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exports.CRSession = CRSession;
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class CDPSession extends _events.EventEmitter {
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constructor(parentSession, sessionId) {
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super();
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this.guid = void 0;
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this._session = void 0;
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this._listeners = [];
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this.guid = `cdp-session@${sessionId}`;
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this._session = parentSession.createChildSession(sessionId, (method, params) => this.emit(CDPSession.Events.Event, {
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method,
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params
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}));
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this._listeners = [_utils.eventsHelper.addEventListener(parentSession, 'Target.detachedFromTarget', event => {
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if (event.sessionId === sessionId) this._onClose();
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})];
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}
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async send(method, params) {
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return await this._session.send(method, params);
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}
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async detach() {
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return await this._session.detach();
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}
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async attachToTarget(targetId) {
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const {
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sessionId
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} = await this.send('Target.attachToTarget', {
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targetId,
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flatten: true
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});
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return new CDPSession(this._session, sessionId);
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}
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_onClose() {
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_utils.eventsHelper.removeEventListeners(this._listeners);
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this._session.dispose();
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this.emit(CDPSession.Events.Closed);
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}
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}
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exports.CDPSession = CDPSession;
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CDPSession.Events = {
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Event: 'event',
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Closed: 'close'
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}; |