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Diffstat (limited to 'remote/test/puppeteer/packages/puppeteer-core/src/common/NetworkEventManager.ts')
-rw-r--r-- | remote/test/puppeteer/packages/puppeteer-core/src/common/NetworkEventManager.ts | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/remote/test/puppeteer/packages/puppeteer-core/src/common/NetworkEventManager.ts b/remote/test/puppeteer/packages/puppeteer-core/src/common/NetworkEventManager.ts new file mode 100644 index 0000000000..da550a0068 --- /dev/null +++ b/remote/test/puppeteer/packages/puppeteer-core/src/common/NetworkEventManager.ts @@ -0,0 +1,220 @@ +/** + * Copyright 2022 Google Inc. All rights reserved. + * + * 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 {Protocol} from 'devtools-protocol'; + +import {HTTPRequest} from './HTTPRequest.js'; + +/** + * @internal + */ +export type QueuedEventGroup = { + responseReceivedEvent: Protocol.Network.ResponseReceivedEvent; + loadingFinishedEvent?: Protocol.Network.LoadingFinishedEvent; + loadingFailedEvent?: Protocol.Network.LoadingFailedEvent; +}; + +/** + * @internal + */ +export type FetchRequestId = string; + +/** + * @internal + */ +export type RedirectInfo = { + event: Protocol.Network.RequestWillBeSentEvent; + fetchRequestId?: FetchRequestId; +}; +type RedirectInfoList = RedirectInfo[]; + +/** + * @internal + */ +export type NetworkRequestId = string; + +/** + * Helper class to track network events by request ID + * + * @internal + */ +export class NetworkEventManager { + /** + * There are four possible orders of events: + * A. `_onRequestWillBeSent` + * B. `_onRequestWillBeSent`, `_onRequestPaused` + * C. `_onRequestPaused`, `_onRequestWillBeSent` + * D. `_onRequestPaused`, `_onRequestWillBeSent`, `_onRequestPaused`, + * `_onRequestWillBeSent`, `_onRequestPaused`, `_onRequestPaused` + * (see crbug.com/1196004) + * + * For `_onRequest` we need the event from `_onRequestWillBeSent` and + * optionally the `interceptionId` from `_onRequestPaused`. + * + * If request interception is disabled, call `_onRequest` once per call to + * `_onRequestWillBeSent`. + * If request interception is enabled, call `_onRequest` once per call to + * `_onRequestPaused` (once per `interceptionId`). + * + * Events are stored to allow for subsequent events to call `_onRequest`. + * + * Note that (chains of) redirect requests have the same `requestId` (!) as + * the original request. We have to anticipate series of events like these: + * A. `_onRequestWillBeSent`, + * `_onRequestWillBeSent`, ... + * B. `_onRequestWillBeSent`, `_onRequestPaused`, + * `_onRequestWillBeSent`, `_onRequestPaused`, ... + * C. `_onRequestWillBeSent`, `_onRequestPaused`, + * `_onRequestPaused`, `_onRequestWillBeSent`, ... + * D. `_onRequestPaused`, `_onRequestWillBeSent`, + * `_onRequestPaused`, `_onRequestWillBeSent`, `_onRequestPaused`, + * `_onRequestWillBeSent`, `_onRequestPaused`, `_onRequestPaused`, ... + * (see crbug.com/1196004) + */ + #requestWillBeSentMap = new Map< + NetworkRequestId, + Protocol.Network.RequestWillBeSentEvent + >(); + #requestPausedMap = new Map< + NetworkRequestId, + Protocol.Fetch.RequestPausedEvent + >(); + #httpRequestsMap = new Map<NetworkRequestId, HTTPRequest>(); + + /* + * The below maps are used to reconcile Network.responseReceivedExtraInfo + * events with their corresponding request. Each response and redirect + * response gets an ExtraInfo event, and we don't know which will come first. + * This means that we have to store a Response or an ExtraInfo for each + * response, and emit the event when we get both of them. In addition, to + * handle redirects, we have to make them Arrays to represent the chain of + * events. + */ + #responseReceivedExtraInfoMap = new Map< + NetworkRequestId, + Protocol.Network.ResponseReceivedExtraInfoEvent[] + >(); + #queuedRedirectInfoMap = new Map<NetworkRequestId, RedirectInfoList>(); + #queuedEventGroupMap = new Map<NetworkRequestId, QueuedEventGroup>(); + + forget(networkRequestId: NetworkRequestId): void { + this.#requestWillBeSentMap.delete(networkRequestId); + this.#requestPausedMap.delete(networkRequestId); + this.#queuedEventGroupMap.delete(networkRequestId); + this.#queuedRedirectInfoMap.delete(networkRequestId); + this.#responseReceivedExtraInfoMap.delete(networkRequestId); + } + + responseExtraInfo( + networkRequestId: NetworkRequestId + ): Protocol.Network.ResponseReceivedExtraInfoEvent[] { + if (!this.#responseReceivedExtraInfoMap.has(networkRequestId)) { + this.#responseReceivedExtraInfoMap.set(networkRequestId, []); + } + return this.#responseReceivedExtraInfoMap.get( + networkRequestId + ) as Protocol.Network.ResponseReceivedExtraInfoEvent[]; + } + + private queuedRedirectInfo(fetchRequestId: FetchRequestId): RedirectInfoList { + if (!this.#queuedRedirectInfoMap.has(fetchRequestId)) { + this.#queuedRedirectInfoMap.set(fetchRequestId, []); + } + return this.#queuedRedirectInfoMap.get(fetchRequestId) as RedirectInfoList; + } + + queueRedirectInfo( + fetchRequestId: FetchRequestId, + redirectInfo: RedirectInfo + ): void { + this.queuedRedirectInfo(fetchRequestId).push(redirectInfo); + } + + takeQueuedRedirectInfo( + fetchRequestId: FetchRequestId + ): RedirectInfo | undefined { + return this.queuedRedirectInfo(fetchRequestId).shift(); + } + + numRequestsInProgress(): number { + return [...this.#httpRequestsMap].filter(([, request]) => { + return !request.response(); + }).length; + } + + storeRequestWillBeSent( + networkRequestId: NetworkRequestId, + event: Protocol.Network.RequestWillBeSentEvent + ): void { + this.#requestWillBeSentMap.set(networkRequestId, event); + } + + getRequestWillBeSent( + networkRequestId: NetworkRequestId + ): Protocol.Network.RequestWillBeSentEvent | undefined { + return this.#requestWillBeSentMap.get(networkRequestId); + } + + forgetRequestWillBeSent(networkRequestId: NetworkRequestId): void { + this.#requestWillBeSentMap.delete(networkRequestId); + } + + getRequestPaused( + networkRequestId: NetworkRequestId + ): Protocol.Fetch.RequestPausedEvent | undefined { + return this.#requestPausedMap.get(networkRequestId); + } + + forgetRequestPaused(networkRequestId: NetworkRequestId): void { + this.#requestPausedMap.delete(networkRequestId); + } + + storeRequestPaused( + networkRequestId: NetworkRequestId, + event: Protocol.Fetch.RequestPausedEvent + ): void { + this.#requestPausedMap.set(networkRequestId, event); + } + + getRequest(networkRequestId: NetworkRequestId): HTTPRequest | undefined { + return this.#httpRequestsMap.get(networkRequestId); + } + + storeRequest(networkRequestId: NetworkRequestId, request: HTTPRequest): void { + this.#httpRequestsMap.set(networkRequestId, request); + } + + forgetRequest(networkRequestId: NetworkRequestId): void { + this.#httpRequestsMap.delete(networkRequestId); + } + + getQueuedEventGroup( + networkRequestId: NetworkRequestId + ): QueuedEventGroup | undefined { + return this.#queuedEventGroupMap.get(networkRequestId); + } + + queueEventGroup( + networkRequestId: NetworkRequestId, + event: QueuedEventGroup + ): void { + this.#queuedEventGroupMap.set(networkRequestId, event); + } + + forgetQueuedEventGroup(networkRequestId: NetworkRequestId): void { + this.#queuedEventGroupMap.delete(networkRequestId); + } +} |