52cf16c73c
Before v1.7.0 we were creating Response objects either from protocol's Network.Response struct, or from the data available in the requestIntercepted. With the recent chagens to the request interception logic, we can always create response from Newtork.Response struct; this allows us to simply create Response objects from protocol payload.
779 lines
23 KiB
JavaScript
779 lines
23 KiB
JavaScript
/**
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* Copyright 2017 Google Inc. All rights reserved.
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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 EventEmitter = require('events');
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const {helper, assert, debugError} = require('./helper');
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const Multimap = require('./Multimap');
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class NetworkManager extends EventEmitter {
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/**
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* @param {!Puppeteer.CDPSession} client
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* @param {!Puppeteer.FrameManager} frameManager
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*/
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constructor(client, frameManager) {
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super();
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this._client = client;
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this._frameManager = frameManager;
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/** @type {!Map<string, !Request>} */
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this._requestIdToRequest = new Map();
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/** @type {!Map<string, !Protocol.Network.requestWillBeSentPayload>} */
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this._requestIdToRequestWillBeSentEvent = new Map();
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/** @type {!Object<string, string>} */
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this._extraHTTPHeaders = {};
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this._offline = false;
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/** @type {?{username: string, password: string}} */
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this._credentials = null;
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/** @type {!Set<string>} */
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this._attemptedAuthentications = new Set();
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this._userRequestInterceptionEnabled = false;
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this._protocolRequestInterceptionEnabled = false;
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/** @type {!Multimap<string, string>} */
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this._requestHashToRequestIds = new Multimap();
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/** @type {!Multimap<string, string>} */
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this._requestHashToInterceptionIds = new Multimap();
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this._client.on('Network.requestWillBeSent', this._onRequestWillBeSent.bind(this));
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this._client.on('Network.requestIntercepted', this._onRequestIntercepted.bind(this));
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this._client.on('Network.requestServedFromCache', this._onRequestServedFromCache.bind(this));
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this._client.on('Network.responseReceived', this._onResponseReceived.bind(this));
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this._client.on('Network.loadingFinished', this._onLoadingFinished.bind(this));
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this._client.on('Network.loadingFailed', this._onLoadingFailed.bind(this));
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}
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/**
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* @param {?{username: string, password: string}} credentials
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*/
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async authenticate(credentials) {
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this._credentials = credentials;
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await this._updateProtocolRequestInterception();
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}
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/**
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* @param {!Object<string, string>} extraHTTPHeaders
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*/
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async setExtraHTTPHeaders(extraHTTPHeaders) {
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this._extraHTTPHeaders = {};
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for (const key of Object.keys(extraHTTPHeaders)) {
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const value = extraHTTPHeaders[key];
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assert(helper.isString(value), `Expected value of header "${key}" to be String, but "${typeof value}" is found.`);
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this._extraHTTPHeaders[key.toLowerCase()] = value;
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}
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await this._client.send('Network.setExtraHTTPHeaders', { headers: this._extraHTTPHeaders });
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}
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/**
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* @return {!Object<string, string>}
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*/
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extraHTTPHeaders() {
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return Object.assign({}, this._extraHTTPHeaders);
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}
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/**
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* @param {boolean} value
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*/
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async setOfflineMode(value) {
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if (this._offline === value)
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return;
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this._offline = value;
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await this._client.send('Network.emulateNetworkConditions', {
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offline: this._offline,
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// values of 0 remove any active throttling. crbug.com/456324#c9
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latency: 0,
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downloadThroughput: -1,
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uploadThroughput: -1
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});
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}
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/**
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* @param {string} userAgent
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*/
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async setUserAgent(userAgent) {
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await this._client.send('Network.setUserAgentOverride', { userAgent });
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}
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/**
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* @param {boolean} value
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*/
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async setRequestInterception(value) {
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this._userRequestInterceptionEnabled = value;
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await this._updateProtocolRequestInterception();
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}
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async _updateProtocolRequestInterception() {
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const enabled = this._userRequestInterceptionEnabled || !!this._credentials;
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if (enabled === this._protocolRequestInterceptionEnabled)
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return;
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this._protocolRequestInterceptionEnabled = enabled;
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const patterns = enabled ? [{urlPattern: '*'}] : [];
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await Promise.all([
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this._client.send('Network.setCacheDisabled', {cacheDisabled: enabled}),
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this._client.send('Network.setRequestInterception', {patterns})
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]);
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}
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/**
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* @param {!Protocol.Network.requestWillBeSentPayload} event
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*/
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_onRequestWillBeSent(event) {
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if (this._protocolRequestInterceptionEnabled) {
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const requestHash = generateRequestHash(event.request);
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const interceptionId = this._requestHashToInterceptionIds.firstValue(requestHash);
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if (interceptionId) {
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this._onRequest(event, interceptionId);
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this._requestHashToInterceptionIds.delete(requestHash, interceptionId);
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} else {
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this._requestHashToRequestIds.set(requestHash, event.requestId);
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this._requestIdToRequestWillBeSentEvent.set(event.requestId, event);
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}
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return;
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}
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this._onRequest(event, null);
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}
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/**
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* @param {!Protocol.Network.requestInterceptedPayload} event
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*/
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_onRequestIntercepted(event) {
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if (event.authChallenge) {
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/** @type {"Default"|"CancelAuth"|"ProvideCredentials"} */
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let response = 'Default';
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if (this._attemptedAuthentications.has(event.interceptionId)) {
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response = 'CancelAuth';
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} else if (this._credentials) {
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response = 'ProvideCredentials';
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this._attemptedAuthentications.add(event.interceptionId);
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}
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const {username, password} = this._credentials || {username: undefined, password: undefined};
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this._client.send('Network.continueInterceptedRequest', {
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interceptionId: event.interceptionId,
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authChallengeResponse: { response, username, password }
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}).catch(debugError);
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return;
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}
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if (!this._userRequestInterceptionEnabled && this._protocolRequestInterceptionEnabled) {
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this._client.send('Network.continueInterceptedRequest', {
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interceptionId: event.interceptionId
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}).catch(debugError);
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}
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const requestHash = generateRequestHash(event.request);
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const requestId = this._requestHashToRequestIds.firstValue(requestHash);
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if (requestId) {
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const requestWillBeSentEvent = this._requestIdToRequestWillBeSentEvent.get(requestId);
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this._onRequest(requestWillBeSentEvent, event.interceptionId);
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this._requestHashToRequestIds.delete(requestHash, requestId);
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this._requestIdToRequestWillBeSentEvent.delete(requestId);
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} else {
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this._requestHashToInterceptionIds.set(requestHash, event.interceptionId);
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}
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}
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/**
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* @param {!Protocol.Network.requestWillBeSentPayload} event
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* @param {?string} interceptionId
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*/
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_onRequest(event, interceptionId) {
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let redirectChain = [];
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if (event.redirectResponse) {
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const request = this._requestIdToRequest.get(event.requestId);
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// If we connect late to the target, we could have missed the requestWillBeSent event.
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if (request) {
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this._handleRequestRedirect(request, event.redirectResponse);
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redirectChain = request._redirectChain;
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}
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}
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const isNavigationRequest = event.requestId === event.loaderId && event.type === 'Document';
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this._handleRequestStart(event.requestId, interceptionId, event.request.url, isNavigationRequest, event.type, event.request, event.frameId, redirectChain);
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}
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/**
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* @param {!Protocol.Network.requestServedFromCachePayload} event
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*/
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_onRequestServedFromCache(event) {
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const request = this._requestIdToRequest.get(event.requestId);
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if (request)
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request._fromMemoryCache = true;
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}
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/**
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* @param {!Request} request
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* @param {!Protocol.Network.Response} responsePayload
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*/
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_handleRequestRedirect(request, responsePayload) {
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const response = new Response(this._client, request, responsePayload);
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request._response = response;
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request._redirectChain.push(request);
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response._bodyLoadedPromiseFulfill.call(null, new Error('Response body is unavailable for redirect responses'));
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this._requestIdToRequest.delete(request._requestId);
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this._attemptedAuthentications.delete(request._interceptionId);
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this.emit(NetworkManager.Events.Response, response);
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this.emit(NetworkManager.Events.RequestFinished, request);
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}
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/**
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* @param {string} requestId
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* @param {?string} interceptionId
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* @param {string} url
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* @param {boolean} isNavigationRequest
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* @param {string} resourceType
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* @param {!Protocol.Network.Request} requestPayload
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* @param {?string} frameId
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* @param {!Array<!Request>} redirectChain
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*/
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_handleRequestStart(requestId, interceptionId, url, isNavigationRequest, resourceType, requestPayload, frameId, redirectChain) {
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let frame = null;
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if (frameId)
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frame = this._frameManager.frame(frameId);
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const request = new Request(this._client, requestId, interceptionId, isNavigationRequest, this._userRequestInterceptionEnabled, url, resourceType, requestPayload, frame, redirectChain);
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this._requestIdToRequest.set(requestId, request);
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this.emit(NetworkManager.Events.Request, request);
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}
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/**
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* @param {!Protocol.Network.responseReceivedPayload} event
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*/
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_onResponseReceived(event) {
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const request = this._requestIdToRequest.get(event.requestId);
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// FileUpload sends a response without a matching request.
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if (!request)
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return;
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const response = new Response(this._client, request, event.response);
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request._response = response;
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this.emit(NetworkManager.Events.Response, response);
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}
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/**
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* @param {!Protocol.Network.loadingFinishedPayload} event
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*/
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_onLoadingFinished(event) {
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const request = this._requestIdToRequest.get(event.requestId);
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// For certain requestIds we never receive requestWillBeSent event.
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// @see https://crbug.com/750469
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if (!request)
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return;
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request.response()._bodyLoadedPromiseFulfill.call(null);
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this._requestIdToRequest.delete(request._requestId);
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this._attemptedAuthentications.delete(request._interceptionId);
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this.emit(NetworkManager.Events.RequestFinished, request);
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}
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/**
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* @param {!Protocol.Network.loadingFailedPayload} event
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*/
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_onLoadingFailed(event) {
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const request = this._requestIdToRequest.get(event.requestId);
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// For certain requestIds we never receive requestWillBeSent event.
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// @see https://crbug.com/750469
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if (!request)
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return;
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request._failureText = event.errorText;
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const response = request.response();
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if (response)
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response._bodyLoadedPromiseFulfill.call(null);
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this._requestIdToRequest.delete(request._requestId);
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this._attemptedAuthentications.delete(request._interceptionId);
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this.emit(NetworkManager.Events.RequestFailed, request);
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}
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}
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class Request {
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/**
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* @param {!Puppeteer.CDPSession} client
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* @param {?string} requestId
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* @param {string} interceptionId
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* @param {boolean} isNavigationRequest
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* @param {boolean} allowInterception
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* @param {string} url
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* @param {string} resourceType
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* @param {!Protocol.Network.Request} payload
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* @param {?Puppeteer.Frame} frame
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* @param {!Array<!Request>} redirectChain
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*/
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constructor(client, requestId, interceptionId, isNavigationRequest, allowInterception, url, resourceType, payload, frame, redirectChain) {
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this._client = client;
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this._requestId = requestId;
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this._isNavigationRequest = isNavigationRequest;
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this._interceptionId = interceptionId;
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this._allowInterception = allowInterception;
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this._interceptionHandled = false;
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this._response = null;
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this._failureText = null;
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this._url = url;
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this._resourceType = resourceType.toLowerCase();
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this._method = payload.method;
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this._postData = payload.postData;
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this._headers = {};
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this._frame = frame;
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this._redirectChain = redirectChain;
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for (const key of Object.keys(payload.headers))
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this._headers[key.toLowerCase()] = payload.headers[key];
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this._fromMemoryCache = false;
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}
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/**
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* @return {string}
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*/
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url() {
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return this._url;
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}
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/**
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* @return {string}
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*/
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resourceType() {
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return this._resourceType;
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}
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/**
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* @return {string}
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*/
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method() {
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return this._method;
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}
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/**
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* @return {string|undefined}
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*/
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postData() {
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return this._postData;
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}
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/**
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* @return {!Object}
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*/
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headers() {
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return this._headers;
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}
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/**
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* @return {?Response}
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*/
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response() {
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return this._response;
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}
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/**
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* @return {?Puppeteer.Frame}
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*/
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frame() {
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return this._frame;
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}
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/**
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* @return {boolean}
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*/
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isNavigationRequest() {
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return this._isNavigationRequest;
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}
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/**
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* @return {!Array<!Request>}
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*/
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redirectChain() {
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return this._redirectChain.slice();
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}
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/**
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* @return {?{errorText: string}}
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*/
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failure() {
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if (!this._failureText)
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return null;
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return {
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errorText: this._failureText
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};
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}
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/**
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* @param {!Object=} overrides
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*/
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async continue(overrides = {}) {
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assert(this._allowInterception, 'Request Interception is not enabled!');
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assert(!this._interceptionHandled, 'Request is already handled!');
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this._interceptionHandled = true;
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await this._client.send('Network.continueInterceptedRequest', {
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interceptionId: this._interceptionId,
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url: overrides.url,
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method: overrides.method,
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postData: overrides.postData,
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headers: overrides.headers,
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}).catch(error => {
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// In certain cases, protocol will return error if the request was already canceled
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// or the page was closed. We should tolerate these errors.
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debugError(error);
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});
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}
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/**
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* @param {!{status: number, headers: Object, contentType: string, body: (string|Buffer)}} response
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*/
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async respond(response) {
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// Mocking responses for dataURL requests is not currently supported.
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if (this._url.startsWith('data:'))
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return;
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assert(this._allowInterception, 'Request Interception is not enabled!');
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assert(!this._interceptionHandled, 'Request is already handled!');
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this._interceptionHandled = true;
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const responseBody = response.body && helper.isString(response.body) ? Buffer.from(/** @type {string} */(response.body)) : /** @type {?Buffer} */(response.body || null);
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const responseHeaders = {};
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if (response.headers) {
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for (const header of Object.keys(response.headers))
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responseHeaders[header.toLowerCase()] = response.headers[header];
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}
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if (response.contentType)
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responseHeaders['content-type'] = response.contentType;
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if (responseBody && !('content-length' in responseHeaders)) {
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// @ts-ignore
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responseHeaders['content-length'] = Buffer.byteLength(responseBody);
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}
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const statusCode = response.status || 200;
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const statusText = statusTexts[statusCode] || '';
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const statusLine = `HTTP/1.1 ${statusCode} ${statusText}`;
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const CRLF = '\r\n';
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let text = statusLine + CRLF;
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for (const header of Object.keys(responseHeaders))
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text += header + ': ' + responseHeaders[header] + CRLF;
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text += CRLF;
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let responseBuffer = Buffer.from(text, 'utf8');
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if (responseBody)
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responseBuffer = Buffer.concat([responseBuffer, responseBody]);
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await this._client.send('Network.continueInterceptedRequest', {
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interceptionId: this._interceptionId,
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rawResponse: responseBuffer.toString('base64')
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}).catch(error => {
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// In certain cases, protocol will return error if the request was already canceled
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// or the page was closed. We should tolerate these errors.
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debugError(error);
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});
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}
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/**
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* @param {string=} errorCode
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*/
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async abort(errorCode = 'failed') {
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const errorReason = errorReasons[errorCode];
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assert(errorReason, 'Unknown error code: ' + errorCode);
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assert(this._allowInterception, 'Request Interception is not enabled!');
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assert(!this._interceptionHandled, 'Request is already handled!');
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this._interceptionHandled = true;
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await this._client.send('Network.continueInterceptedRequest', {
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interceptionId: this._interceptionId,
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errorReason
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}).catch(error => {
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// In certain cases, protocol will return error if the request was already canceled
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// or the page was closed. We should tolerate these errors.
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debugError(error);
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});
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}
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}
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const errorReasons = {
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'aborted': 'Aborted',
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'accessdenied': 'AccessDenied',
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'addressunreachable': 'AddressUnreachable',
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'blockedbyclient': 'BlockedByClient',
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'blockedbyresponse': 'BlockedByResponse',
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'connectionaborted': 'ConnectionAborted',
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'connectionclosed': 'ConnectionClosed',
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'connectionfailed': 'ConnectionFailed',
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'connectionrefused': 'ConnectionRefused',
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'connectionreset': 'ConnectionReset',
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'internetdisconnected': 'InternetDisconnected',
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'namenotresolved': 'NameNotResolved',
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'timedout': 'TimedOut',
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'failed': 'Failed',
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};
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helper.tracePublicAPI(Request);
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class Response {
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/**
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* @param {!Puppeteer.CDPSession} client
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* @param {!Request} request
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* @param {!Protocol.Network.Response} responsePayload
|
|
*/
|
|
constructor(client, request, responsePayload) {
|
|
this._client = client;
|
|
this._request = request;
|
|
this._contentPromise = null;
|
|
|
|
this._bodyLoadedPromise = new Promise(fulfill => {
|
|
this._bodyLoadedPromiseFulfill = fulfill;
|
|
});
|
|
|
|
this._status = responsePayload.status;
|
|
this._url = request.url();
|
|
this._fromDiskCache = !!responsePayload.fromDiskCache;
|
|
this._fromServiceWorker = !!responsePayload.fromServiceWorker;
|
|
this._headers = {};
|
|
for (const key of Object.keys(responsePayload.headers))
|
|
this._headers[key.toLowerCase()] = responsePayload.headers[key];
|
|
this._securityDetails = responsePayload.securityDetails ? new SecurityDetails(responsePayload.securityDetails) : null;
|
|
}
|
|
|
|
/**
|
|
* @return {string}
|
|
*/
|
|
url() {
|
|
return this._url;
|
|
}
|
|
|
|
/**
|
|
* @return {boolean}
|
|
*/
|
|
ok() {
|
|
return this._status === 0 || (this._status >= 200 && this._status <= 299);
|
|
}
|
|
|
|
/**
|
|
* @return {number}
|
|
*/
|
|
status() {
|
|
return this._status;
|
|
}
|
|
|
|
/**
|
|
* @return {!Object}
|
|
*/
|
|
headers() {
|
|
return this._headers;
|
|
}
|
|
|
|
/**
|
|
* @return {?SecurityDetails}
|
|
*/
|
|
securityDetails() {
|
|
return this._securityDetails;
|
|
}
|
|
|
|
/**
|
|
* @return {!Promise<!Buffer>}
|
|
*/
|
|
buffer() {
|
|
if (!this._contentPromise) {
|
|
this._contentPromise = this._bodyLoadedPromise.then(async error => {
|
|
if (error)
|
|
throw error;
|
|
const response = await this._client.send('Network.getResponseBody', {
|
|
requestId: this._request._requestId
|
|
});
|
|
return Buffer.from(response.body, response.base64Encoded ? 'base64' : 'utf8');
|
|
});
|
|
}
|
|
return this._contentPromise;
|
|
}
|
|
|
|
/**
|
|
* @return {!Promise<string>}
|
|
*/
|
|
async text() {
|
|
const content = await this.buffer();
|
|
return content.toString('utf8');
|
|
}
|
|
|
|
/**
|
|
* @return {!Promise<!Object>}
|
|
*/
|
|
async json() {
|
|
const content = await this.text();
|
|
return JSON.parse(content);
|
|
}
|
|
|
|
/**
|
|
* @return {!Request}
|
|
*/
|
|
request() {
|
|
return this._request;
|
|
}
|
|
|
|
/**
|
|
* @return {boolean}
|
|
*/
|
|
fromCache() {
|
|
return this._fromDiskCache || this._request._fromMemoryCache;
|
|
}
|
|
|
|
/**
|
|
* @return {boolean}
|
|
*/
|
|
fromServiceWorker() {
|
|
return this._fromServiceWorker;
|
|
}
|
|
}
|
|
helper.tracePublicAPI(Response);
|
|
|
|
/**
|
|
* @param {!Protocol.Network.Request} request
|
|
* @return {string}
|
|
*/
|
|
function generateRequestHash(request) {
|
|
let normalizedURL = request.url;
|
|
try {
|
|
// Decoding is necessary to normalize URLs. @see crbug.com/759388
|
|
// The method will throw if the URL is malformed. In this case,
|
|
// consider URL to be normalized as-is.
|
|
normalizedURL = decodeURI(request.url);
|
|
} catch (e) {
|
|
}
|
|
const hash = {
|
|
url: normalizedURL,
|
|
method: request.method,
|
|
postData: request.postData,
|
|
headers: {},
|
|
};
|
|
|
|
if (!normalizedURL.startsWith('data:')) {
|
|
const headers = Object.keys(request.headers);
|
|
headers.sort();
|
|
for (let header of headers) {
|
|
const headerValue = request.headers[header];
|
|
header = header.toLowerCase();
|
|
if (header === 'accept' || header === 'referer' || header === 'x-devtools-emulate-network-conditions-client-id' || header === 'cookie')
|
|
continue;
|
|
hash.headers[header] = headerValue;
|
|
}
|
|
}
|
|
return JSON.stringify(hash);
|
|
}
|
|
|
|
class SecurityDetails {
|
|
/**
|
|
* @param {!Protocol.Network.SecurityDetails} securityPayload
|
|
*/
|
|
constructor(securityPayload) {
|
|
this._subjectName = securityPayload['subjectName'];
|
|
this._issuer = securityPayload['issuer'];
|
|
this._validFrom = securityPayload['validFrom'];
|
|
this._validTo = securityPayload['validTo'];
|
|
this._protocol = securityPayload['protocol'];
|
|
}
|
|
|
|
/**
|
|
* @return {string}
|
|
*/
|
|
subjectName() {
|
|
return this._subjectName;
|
|
}
|
|
|
|
/**
|
|
* @return {string}
|
|
*/
|
|
issuer() {
|
|
return this._issuer;
|
|
}
|
|
|
|
/**
|
|
* @return {number}
|
|
*/
|
|
validFrom() {
|
|
return this._validFrom;
|
|
}
|
|
|
|
/**
|
|
* @return {number}
|
|
*/
|
|
validTo() {
|
|
return this._validTo;
|
|
}
|
|
|
|
/**
|
|
* @return {string}
|
|
*/
|
|
protocol() {
|
|
return this._protocol;
|
|
}
|
|
}
|
|
|
|
NetworkManager.Events = {
|
|
Request: 'request',
|
|
Response: 'response',
|
|
RequestFailed: 'requestfailed',
|
|
RequestFinished: 'requestfinished',
|
|
};
|
|
|
|
const statusTexts = {
|
|
'100': 'Continue',
|
|
'101': 'Switching Protocols',
|
|
'102': 'Processing',
|
|
'200': 'OK',
|
|
'201': 'Created',
|
|
'202': 'Accepted',
|
|
'203': 'Non-Authoritative Information',
|
|
'204': 'No Content',
|
|
'206': 'Partial Content',
|
|
'207': 'Multi-Status',
|
|
'208': 'Already Reported',
|
|
'209': 'IM Used',
|
|
'300': 'Multiple Choices',
|
|
'301': 'Moved Permanently',
|
|
'302': 'Found',
|
|
'303': 'See Other',
|
|
'304': 'Not Modified',
|
|
'305': 'Use Proxy',
|
|
'306': 'Switch Proxy',
|
|
'307': 'Temporary Redirect',
|
|
'308': 'Permanent Redirect',
|
|
'400': 'Bad Request',
|
|
'401': 'Unauthorized',
|
|
'402': 'Payment Required',
|
|
'403': 'Forbidden',
|
|
'404': 'Not Found',
|
|
'405': 'Method Not Allowed',
|
|
'406': 'Not Acceptable',
|
|
'407': 'Proxy Authentication Required',
|
|
'408': 'Request Timeout',
|
|
'409': 'Conflict',
|
|
'410': 'Gone',
|
|
'411': 'Length Required',
|
|
'412': 'Precondition Failed',
|
|
'413': 'Payload Too Large',
|
|
'414': 'URI Too Long',
|
|
'415': 'Unsupported Media Type',
|
|
'416': 'Range Not Satisfiable',
|
|
'417': 'Expectation Failed',
|
|
'418': 'I\'m a teapot',
|
|
'421': 'Misdirected Request',
|
|
'422': 'Unprocessable Entity',
|
|
'423': 'Locked',
|
|
'424': 'Failed Dependency',
|
|
'426': 'Upgrade Required',
|
|
'428': 'Precondition Required',
|
|
'429': 'Too Many Requests',
|
|
'431': 'Request Header Fields Too Large',
|
|
'451': 'Unavailable For Legal Reasons',
|
|
'500': 'Internal Server Error',
|
|
'501': 'Not Implemented',
|
|
'502': 'Bad Gateway',
|
|
'503': 'Service Unavailable',
|
|
'504': 'Gateway Timeout',
|
|
'505': 'HTTP Version Not Supported',
|
|
'506': 'Variant Also Negotiates',
|
|
'507': 'Insufficient Storage',
|
|
'508': 'Loop Detected',
|
|
'510': 'Not Extended',
|
|
'511': 'Network Authentication Required',
|
|
};
|
|
|
|
module.exports = {Request, Response, NetworkManager};
|