"use strict";
/**
* @license
* Copyright 2017 Google Inc.
* SPDX-License-Identifier: Apache-2.0
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.NetworkManager = void 0;
const CDPSession_js_1 = require("../api/CDPSession.js");
const EventEmitter_js_1 = require("../common/EventEmitter.js");
const NetworkManagerEvents_js_1 = require("../common/NetworkManagerEvents.js");
const util_js_1 = require("../common/util.js");
const assert_js_1 = require("../util/assert.js");
const disposable_js_1 = require("../util/disposable.js");
const HTTPRequest_js_1 = require("./HTTPRequest.js");
const HTTPResponse_js_1 = require("./HTTPResponse.js");
const NetworkEventManager_js_1 = require("./NetworkEventManager.js");
/**
* @internal
*/
class NetworkManager extends EventEmitter_js_1.EventEmitter {
#frameManager;
#networkEventManager = new NetworkEventManager_js_1.NetworkEventManager();
#extraHTTPHeaders;
#credentials = null;
#attemptedAuthentications = new Set();
#userRequestInterceptionEnabled = false;
#protocolRequestInterceptionEnabled = false;
#userCacheDisabled;
#emulatedNetworkConditions;
#userAgent;
#userAgentMetadata;
#handlers = [
['Fetch.requestPaused', this.#onRequestPaused],
['Fetch.authRequired', this.#onAuthRequired],
['Network.requestWillBeSent', this.#onRequestWillBeSent],
['Network.requestServedFromCache', this.#onRequestServedFromCache],
['Network.responseReceived', this.#onResponseReceived],
['Network.loadingFinished', this.#onLoadingFinished],
['Network.loadingFailed', this.#onLoadingFailed],
['Network.responseReceivedExtraInfo', this.#onResponseReceivedExtraInfo],
[CDPSession_js_1.CDPSessionEvent.Disconnected, this.#removeClient],
];
#clients = new Map();
constructor(frameManager) {
super();
this.#frameManager = frameManager;
}
async addClient(client) {
if (this.#clients.has(client)) {
return;
}
const subscriptions = new disposable_js_1.DisposableStack();
this.#clients.set(client, subscriptions);
const clientEmitter = subscriptions.use(new EventEmitter_js_1.EventEmitter(client));
for (const [event, handler] of this.#handlers) {
clientEmitter.on(event, (arg) => {
return handler.bind(this)(client, arg);
});
}
await Promise.all([
client.send('Network.enable'),
this.#applyExtraHTTPHeaders(client),
this.#applyNetworkConditions(client),
this.#applyProtocolCacheDisabled(client),
this.#applyProtocolRequestInterception(client),
this.#applyUserAgent(client),
]);
}
async #removeClient(client) {
this.#clients.get(client)?.dispose();
this.#clients.delete(client);
}
async authenticate(credentials) {
this.#credentials = credentials;
const enabled = this.#userRequestInterceptionEnabled || !!this.#credentials;
if (enabled === this.#protocolRequestInterceptionEnabled) {
return;
}
this.#protocolRequestInterceptionEnabled = enabled;
await this.#applyToAllClients(this.#applyProtocolRequestInterception.bind(this));
}
async setExtraHTTPHeaders(headers) {
const extraHTTPHeaders = {};
for (const [key, value] of Object.entries(headers)) {
(0, assert_js_1.assert)((0, util_js_1.isString)(value), `Expected value of header "${key}" to be String, but "${typeof value}" is found.`);
extraHTTPHeaders[key.toLowerCase()] = value;
}
this.#extraHTTPHeaders = extraHTTPHeaders;
await this.#applyToAllClients(this.#applyExtraHTTPHeaders.bind(this));
}
async #applyExtraHTTPHeaders(client) {
if (this.#extraHTTPHeaders === undefined) {
return;
}
await client.send('Network.setExtraHTTPHeaders', {
headers: this.#extraHTTPHeaders,
});
}
extraHTTPHeaders() {
return Object.assign({}, this.#extraHTTPHeaders);
}
inFlightRequestsCount() {
return this.#networkEventManager.inFlightRequestsCount();
}
async setOfflineMode(value) {
if (!this.#emulatedNetworkConditions) {
this.#emulatedNetworkConditions = {
offline: false,
upload: -1,
download: -1,
latency: 0,
};
}
this.#emulatedNetworkConditions.offline = value;
await this.#applyToAllClients(this.#applyNetworkConditions.bind(this));
}
async emulateNetworkConditions(networkConditions) {
if (!this.#emulatedNetworkConditions) {
this.#emulatedNetworkConditions = {
offline: false,
upload: -1,
download: -1,
latency: 0,
};
}
this.#emulatedNetworkConditions.upload = networkConditions
? networkConditions.upload
: -1;
this.#emulatedNetworkConditions.download = networkConditions
? networkConditions.download
: -1;
this.#emulatedNetworkConditions.latency = networkConditions
? networkConditions.latency
: 0;
await this.#applyToAllClients(this.#applyNetworkConditions.bind(this));
}
async #applyToAllClients(fn) {
await Promise.all(Array.from(this.#clients.keys()).map(client => {
return fn(client);
}));
}
async #applyNetworkConditions(client) {
if (this.#emulatedNetworkConditions === undefined) {
return;
}
await client.send('Network.emulateNetworkConditions', {
offline: this.#emulatedNetworkConditions.offline,
latency: this.#emulatedNetworkConditions.latency,
uploadThroughput: this.#emulatedNetworkConditions.upload,
downloadThroughput: this.#emulatedNetworkConditions.download,
});
}
async setUserAgent(userAgent, userAgentMetadata) {
this.#userAgent = userAgent;
this.#userAgentMetadata = userAgentMetadata;
await this.#applyToAllClients(this.#applyUserAgent.bind(this));
}
async #applyUserAgent(client) {
if (this.#userAgent === undefined) {
return;
}
await client.send('Network.setUserAgentOverride', {
userAgent: this.#userAgent,
userAgentMetadata: this.#userAgentMetadata,
});
}
async setCacheEnabled(enabled) {
this.#userCacheDisabled = !enabled;
await this.#applyToAllClients(this.#applyProtocolCacheDisabled.bind(this));
}
async setRequestInterception(value) {
this.#userRequestInterceptionEnabled = value;
const enabled = this.#userRequestInterceptionEnabled || !!this.#credentials;
if (enabled === this.#protocolRequestInterceptionEnabled) {
return;
}
this.#protocolRequestInterceptionEnabled = enabled;
await this.#applyToAllClients(this.#applyProtocolRequestInterception.bind(this));
}
async #applyProtocolRequestInterception(client) {
if (this.#userCacheDisabled === undefined) {
this.#userCacheDisabled = false;
}
if (this.#protocolRequestInterceptionEnabled) {
await Promise.all([
this.#applyProtocolCacheDisabled(client),
client.send('Fetch.enable', {
handleAuthRequests: true,
patterns: [{ urlPattern: '*' }],
}),
]);
}
else {
await Promise.all([
this.#applyProtocolCacheDisabled(client),
client.send('Fetch.disable'),
]);
}
}
async #applyProtocolCacheDisabled(client) {
if (this.#userCacheDisabled === undefined) {
return;
}
await client.send('Network.setCacheDisabled', {
cacheDisabled: this.#userCacheDisabled,
});
}
#onRequestWillBeSent(client, event) {
// Request interception doesn't happen for data URLs with Network Service.
if (this.#userRequestInterceptionEnabled &&
!event.request.url.startsWith('data:')) {
const { requestId: networkRequestId } = event;
this.#networkEventManager.storeRequestWillBeSent(networkRequestId, event);
/**
* CDP may have sent a Fetch.requestPaused event already. Check for it.
*/
const requestPausedEvent = this.#networkEventManager.getRequestPaused(networkRequestId);
if (requestPausedEvent) {
const { requestId: fetchRequestId } = requestPausedEvent;
this.#patchRequestEventHeaders(event, requestPausedEvent);
this.#onRequest(client, event, fetchRequestId);
this.#networkEventManager.forgetRequestPaused(networkRequestId);
}
return;
}
this.#onRequest(client, event, undefined);
}
#onAuthRequired(client, event) {
let response = 'Default';
if (this.#attemptedAuthentications.has(event.requestId)) {
response = 'CancelAuth';
}
else if (this.#credentials) {
response = 'ProvideCredentials';
this.#attemptedAuthentications.add(event.requestId);
}
const { username, password } = this.#credentials || {
username: undefined,
password: undefined,
};
client
.send('Fetch.continueWithAuth', {
requestId: event.requestId,
authChallengeResponse: { response, username, password },
})
.catch(util_js_1.debugError);
}
/**
* CDP may send a Fetch.requestPaused without or before a
* Network.requestWillBeSent
*
* CDP may send multiple Fetch.requestPaused
* for the same Network.requestWillBeSent.
*/
#onRequestPaused(client, event) {
if (!this.#userRequestInterceptionEnabled &&
this.#protocolRequestInterceptionEnabled) {
client
.send('Fetch.continueRequest', {
requestId: event.requestId,
})
.catch(util_js_1.debugError);
}
const { networkId: networkRequestId, requestId: fetchRequestId } = event;
if (!networkRequestId) {
this.#onRequestWithoutNetworkInstrumentation(client, event);
return;
}
const requestWillBeSentEvent = (() => {
const requestWillBeSentEvent = this.#networkEventManager.getRequestWillBeSent(networkRequestId);
// redirect requests have the same `requestId`,
if (requestWillBeSentEvent &&
(requestWillBeSentEvent.request.url !== event.request.url ||
requestWillBeSentEvent.request.method !== event.request.method)) {
this.#networkEventManager.forgetRequestWillBeSent(networkRequestId);
return;
}
return requestWillBeSentEvent;
})();
if (requestWillBeSentEvent) {
this.#patchRequestEventHeaders(requestWillBeSentEvent, event);
this.#onRequest(client, requestWillBeSentEvent, fetchRequestId);
}
else {
this.#networkEventManager.storeRequestPaused(networkRequestId, event);
}
}
#patchRequestEventHeaders(requestWillBeSentEvent, requestPausedEvent) {
requestWillBeSentEvent.request.headers = {
...requestWillBeSentEvent.request.headers,
// includes extra headers, like: Accept, Origin
...requestPausedEvent.request.headers,
};
}
#onRequestWithoutNetworkInstrumentation(client, event) {
// If an event has no networkId it should not have any network events. We
// still want to dispatch it for the interception by the user.
const frame = event.frameId
? this.#frameManager.frame(event.frameId)
: null;
const request = new HTTPRequest_js_1.CdpHTTPRequest(client, frame, event.requestId, this.#userRequestInterceptionEnabled, event, []);
this.emit(NetworkManagerEvents_js_1.NetworkManagerEvent.Request, request);
void request.finalizeInterceptions();
}
#onRequest(client, event, fetchRequestId) {
let redirectChain = [];
if (event.redirectResponse) {
// We want to emit a response and requestfinished for the
// redirectResponse, but we can't do so unless we have a
// responseExtraInfo ready to pair it up with. If we don't have any
// responseExtraInfos saved in our queue, they we have to wait until
// the next one to emit response and requestfinished, *and* we should
// also wait to emit this Request too because it should come after the
// response/requestfinished.
let redirectResponseExtraInfo = null;
if (event.redirectHasExtraInfo) {
redirectResponseExtraInfo = this.#networkEventManager
.responseExtraInfo(event.requestId)
.shift();
if (!redirectResponseExtraInfo) {
this.#networkEventManager.queueRedirectInfo(event.requestId, {
event,
fetchRequestId,
});
return;
}
}
const request = this.#networkEventManager.getRequest(event.requestId);
// If we connect late to the target, we could have missed the
// requestWillBeSent event.
if (request) {
this.#handleRequestRedirect(client, request, event.redirectResponse, redirectResponseExtraInfo);
redirectChain = request._redirectChain;
}
}
const frame = event.frameId
? this.#frameManager.frame(event.frameId)
: null;
const request = new HTTPRequest_js_1.CdpHTTPRequest(client, frame, fetchRequestId, this.#userRequestInterceptionEnabled, event, redirectChain);
this.#networkEventManager.storeRequest(event.requestId, request);
this.emit(NetworkManagerEvents_js_1.NetworkManagerEvent.Request, request);
void request.finalizeInterceptions();
}
#onRequestServedFromCache(_client, event) {
const request = this.#networkEventManager.getRequest(event.requestId);
if (request) {
request._fromMemoryCache = true;
}
this.emit(NetworkManagerEvents_js_1.NetworkManagerEvent.RequestServedFromCache, request);
}
#handleRequestRedirect(client, request, responsePayload, extraInfo) {
const response = new HTTPResponse_js_1.CdpHTTPResponse(client, request, responsePayload, extraInfo);
request._response = response;
request._redirectChain.push(request);
response._resolveBody(new Error('Response body is unavailable for redirect responses'));
this.#forgetRequest(request, false);
this.emit(NetworkManagerEvents_js_1.NetworkManagerEvent.Response, response);
this.emit(NetworkManagerEvents_js_1.NetworkManagerEvent.RequestFinished, request);
}
#emitResponseEvent(client, responseReceived, extraInfo) {
const request = this.#networkEventManager.getRequest(responseReceived.requestId);
// FileUpload sends a response without a matching request.
if (!request) {
return;
}
const extraInfos = this.#networkEventManager.responseExtraInfo(responseReceived.requestId);
if (extraInfos.length) {
(0, util_js_1.debugError)(new Error('Unexpected extraInfo events for request ' +
responseReceived.requestId));
}
// Chromium sends wrong extraInfo events for responses served from cache.
// See https://github.com/puppeteer/puppeteer/issues/9965 and
// https://crbug.com/1340398.
if (responseReceived.response.fromDiskCache) {
extraInfo = null;
}
const response = new HTTPResponse_js_1.CdpHTTPResponse(client, request, responseReceived.response, extraInfo);
request._response = response;
this.emit(NetworkManagerEvents_js_1.NetworkManagerEvent.Response, response);
}
#onResponseReceived(client, event) {
const request = this.#networkEventManager.getRequest(event.requestId);
let extraInfo = null;
if (request && !request._fromMemoryCache && event.hasExtraInfo) {
extraInfo = this.#networkEventManager
.responseExtraInfo(event.requestId)
.shift();
if (!extraInfo) {
// Wait until we get the corresponding ExtraInfo event.
this.#networkEventManager.queueEventGroup(event.requestId, {
responseReceivedEvent: event,
});
return;
}
}
this.#emitResponseEvent(client, event, extraInfo);
}
#onResponseReceivedExtraInfo(client, event) {
// We may have skipped a redirect response/request pair due to waiting for
// this ExtraInfo event. If so, continue that work now that we have the
// request.
const redirectInfo = this.#networkEventManager.takeQueuedRedirectInfo(event.requestId);
if (redirectInfo) {
this.#networkEventManager.responseExtraInfo(event.requestId).push(event);
this.#onRequest(client, redirectInfo.event, redirectInfo.fetchRequestId);
return;
}
// We may have skipped response and loading events because we didn't have
// this ExtraInfo event yet. If so, emit those events now.
const queuedEvents = this.#networkEventManager.getQueuedEventGroup(event.requestId);
if (queuedEvents) {
this.#networkEventManager.forgetQueuedEventGroup(event.requestId);
this.#emitResponseEvent(client, queuedEvents.responseReceivedEvent, event);
if (queuedEvents.loadingFinishedEvent) {
this.#emitLoadingFinished(queuedEvents.loadingFinishedEvent);
}
if (queuedEvents.loadingFailedEvent) {
this.#emitLoadingFailed(queuedEvents.loadingFailedEvent);
}
return;
}
// Wait until we get another event that can use this ExtraInfo event.
this.#networkEventManager.responseExtraInfo(event.requestId).push(event);
}
#forgetRequest(request, events) {
const requestId = request.id;
const interceptionId = request._interceptionId;
this.#networkEventManager.forgetRequest(requestId);
interceptionId !== undefined &&
this.#attemptedAuthentications.delete(interceptionId);
if (events) {
this.#networkEventManager.forget(requestId);
}
}
#onLoadingFinished(_client, event) {
// If the response event for this request is still waiting on a
// corresponding ExtraInfo event, then wait to emit this event too.
const queuedEvents = this.#networkEventManager.getQueuedEventGroup(event.requestId);
if (queuedEvents) {
queuedEvents.loadingFinishedEvent = event;
}
else {
this.#emitLoadingFinished(event);
}
}
#emitLoadingFinished(event) {
const request = this.#networkEventManager.getRequest(event.requestId);
// For certain requestIds we never receive requestWillBeSent event.
// @see https://crbug.com/750469
if (!request) {
return;
}
// Under certain conditions we never get the Network.responseReceived
// event from protocol. @see https://crbug.com/883475
if (request.response()) {
request.response()?._resolveBody();
}
this.#forgetRequest(request, true);
this.emit(NetworkManagerEvents_js_1.NetworkManagerEvent.RequestFinished, request);
}
#onLoadingFailed(_client, event) {
// If the response event for this request is still waiting on a
// corresponding ExtraInfo event, then wait to emit this event too.
const queuedEvents = this.#networkEventManager.getQueuedEventGroup(event.requestId);
if (queuedEvents) {
queuedEvents.loadingFailedEvent = event;
}
else {
this.#emitLoadingFailed(event);
}
}
#emitLoadingFailed(event) {
const request = this.#networkEventManager.getRequest(event.requestId);
// For certain requestIds we never receive requestWillBeSent event.
// @see https://crbug.com/750469
if (!request) {
return;
}
request._failureText = event.errorText;
const response = request.response();
if (response) {
response._resolveBody();
}
this.#forgetRequest(request, true);
this.emit(NetworkManagerEvents_js_1.NetworkManagerEvent.RequestFailed, request);
}
}
exports.NetworkManager = NetworkManager;
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