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wkPage.ts
1003 lines (910 loc) · 43.7 KB
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wkPage.ts
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/**
* Copyright 2017 Google Inc. All rights reserved.
* Modifications 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 * as jpeg from 'jpeg-js';
import path from 'path';
import * as png from 'pngjs';
import { assert, createGuid, debugAssert, headersArrayToObject, headersObjectToArray } from '../../utils/utils';
import * as accessibility from '../accessibility';
import * as dialog from '../dialog';
import * as dom from '../dom';
import * as frames from '../frames';
import { helper, RegisteredListener } from '../helper';
import { JSHandle } from '../javascript';
import * as network from '../network';
import { Page, PageBinding, PageDelegate } from '../page';
import * as types from '../types';
import { Protocol } from './protocol';
import { getAccessibilityTree } from './wkAccessibility';
import { WKBrowserContext } from './wkBrowser';
import { WKSession } from './wkConnection';
import { WKExecutionContext } from './wkExecutionContext';
import { RawKeyboardImpl, RawMouseImpl, RawTouchscreenImpl } from './wkInput';
import { WKInterceptableRequest } from './wkInterceptableRequest';
import { WKProvisionalPage } from './wkProvisionalPage';
import { WKWorkers } from './wkWorkers';
const UTILITY_WORLD_NAME = '__playwright_utility_world__';
const BINDING_CALL_MESSAGE = '__playwright_binding_call__';
export class WKPage implements PageDelegate {
readonly rawMouse: RawMouseImpl;
readonly rawKeyboard: RawKeyboardImpl;
readonly rawTouchscreen: RawTouchscreenImpl;
_session: WKSession;
private _provisionalPage: WKProvisionalPage | null = null;
readonly _page: Page;
private readonly _pagePromise: Promise<Page | Error>;
private _pagePromiseCallback: (page: Page | Error) => void = () => {};
private readonly _pageProxySession: WKSession;
readonly _opener: WKPage | null;
private readonly _requestIdToRequest = new Map<string, WKInterceptableRequest>();
private readonly _workers: WKWorkers;
private readonly _contextIdToContext: Map<number, dom.FrameExecutionContext>;
private _mainFrameContextId?: number;
private _sessionListeners: RegisteredListener[] = [];
private _eventListeners: RegisteredListener[];
readonly _browserContext: WKBrowserContext;
_initializedPage: Page | null = null;
private _firstNonInitialNavigationCommittedPromise: Promise<void>;
private _firstNonInitialNavigationCommittedFulfill = () => {};
_firstNonInitialNavigationCommittedReject = (e: Error) => {};
private _lastConsoleMessage: { derivedType: string, text: string, handles: JSHandle[]; count: number, location: types.ConsoleMessageLocation; } | null = null;
// Holds window features for the next popup being opened via window.open,
// until the popup page proxy arrives.
private _nextWindowOpenPopupFeatures?: string[];
private _recordingVideoFile: string | null = null;
constructor(browserContext: WKBrowserContext, pageProxySession: WKSession, opener: WKPage | null) {
this._pageProxySession = pageProxySession;
this._opener = opener;
this.rawKeyboard = new RawKeyboardImpl(pageProxySession);
this.rawMouse = new RawMouseImpl(pageProxySession);
this.rawTouchscreen = new RawTouchscreenImpl(pageProxySession);
this._contextIdToContext = new Map();
this._page = new Page(this, browserContext);
this._workers = new WKWorkers(this._page);
this._session = undefined as any as WKSession;
this._browserContext = browserContext;
this._page.on(Page.Events.FrameDetached, (frame: frames.Frame) => this._removeContextsForFrame(frame, false));
this._eventListeners = [
helper.addEventListener(this._pageProxySession, 'Target.targetCreated', this._onTargetCreated.bind(this)),
helper.addEventListener(this._pageProxySession, 'Target.targetDestroyed', this._onTargetDestroyed.bind(this)),
helper.addEventListener(this._pageProxySession, 'Target.dispatchMessageFromTarget', this._onDispatchMessageFromTarget.bind(this)),
helper.addEventListener(this._pageProxySession, 'Target.didCommitProvisionalTarget', this._onDidCommitProvisionalTarget.bind(this)),
];
this._pagePromise = new Promise(f => this._pagePromiseCallback = f);
this._firstNonInitialNavigationCommittedPromise = new Promise((f, r) => {
this._firstNonInitialNavigationCommittedFulfill = f;
this._firstNonInitialNavigationCommittedReject = r;
});
if (opener && !browserContext._options.noDefaultViewport && opener._nextWindowOpenPopupFeatures) {
const viewportSize = helper.getViewportSizeFromWindowFeatures(opener._nextWindowOpenPopupFeatures);
opener._nextWindowOpenPopupFeatures = undefined;
if (viewportSize)
this._page._state.emulatedSize = { viewport: viewportSize, screen: viewportSize };
}
}
private async _initializePageProxySession() {
const promises: Promise<any>[] = [
this._pageProxySession.send('Dialog.enable'),
this._pageProxySession.send('Emulation.setActiveAndFocused', { active: true }),
];
const contextOptions = this._browserContext._options;
if (contextOptions.javaScriptEnabled === false)
promises.push(this._pageProxySession.send('Emulation.setJavaScriptEnabled', { enabled: false }));
promises.push(this._updateViewport());
promises.push(this.updateHttpCredentials());
if (this._browserContext._permissions.size) {
for (const [key, value] of this._browserContext._permissions)
promises.push(this._grantPermissions(key, value));
}
if (this._browserContext._options.recordVideo) {
const outputFile = path.join(this._browserContext._options.recordVideo.dir, createGuid() + '.webm');
promises.push(this._browserContext._ensureVideosPath().then(() => {
return this._startScreencast({
// validateBrowserContextOptions ensures correct video size.
...this._browserContext._options.recordVideo!.size!,
outputFile,
});
}));
}
await Promise.all(promises);
}
private _setSession(session: WKSession) {
helper.removeEventListeners(this._sessionListeners);
this._session = session;
this.rawKeyboard.setSession(session);
this._addSessionListeners();
this._workers.setSession(session);
}
// This method is called for provisional targets as well. The session passed as the parameter
// may be different from the current session and may be destroyed without becoming current.
async _initializeSession(session: WKSession, provisional: boolean, resourceTreeHandler: (r: Protocol.Page.getResourceTreeReturnValue) => void) {
await this._initializeSessionMayThrow(session, resourceTreeHandler).catch(e => {
// Provisional session can be disposed at any time, for example due to new navigation initiating
// a new provisional page.
if (provisional && session.isDisposed())
return;
// Swallow initialization errors due to newer target swap in,
// since we will reinitialize again.
if (this._session === session)
throw e;
});
}
private async _initializeSessionMayThrow(session: WKSession, resourceTreeHandler: (r: Protocol.Page.getResourceTreeReturnValue) => void) {
const [, frameTree] = await Promise.all([
// Page agent must be enabled before Runtime.
session.send('Page.enable'),
session.send('Page.getResourceTree'),
] as const);
resourceTreeHandler(frameTree);
const promises: Promise<any>[] = [
// Resource tree should be received before first execution context.
session.send('Runtime.enable'),
session.send('Page.createUserWorld', { name: UTILITY_WORLD_NAME }).catch(_ => {}), // Worlds are per-process
session.send('Console.enable'),
session.send('Network.enable'),
this._workers.initializeSession(session)
];
if (this._page._needsRequestInterception()) {
promises.push(session.send('Network.setInterceptionEnabled', { enabled: true }));
promises.push(session.send('Network.addInterception', { url: '.*', stage: 'request', isRegex: true }));
}
const contextOptions = this._browserContext._options;
if (contextOptions.userAgent)
promises.push(session.send('Page.overrideUserAgent', { value: contextOptions.userAgent }));
if (this._page._state.mediaType || this._page._state.colorScheme)
promises.push(WKPage._setEmulateMedia(session, this._page._state.mediaType, this._page._state.colorScheme));
const bootstrapScript = this._calculateBootstrapScript();
promises.push(session.send('Page.setBootstrapScript', { source: bootstrapScript }));
this._page.frames().map(frame => frame.evaluateExpression(bootstrapScript, false, undefined, 'main').catch(e => {}));
if (contextOptions.bypassCSP)
promises.push(session.send('Page.setBypassCSP', { enabled: true }));
if (this._page._state.emulatedSize) {
promises.push(session.send('Page.setScreenSizeOverride', {
width: this._page._state.emulatedSize.screen.width,
height: this._page._state.emulatedSize.screen.height,
}));
}
promises.push(this.updateEmulateMedia());
promises.push(session.send('Network.setExtraHTTPHeaders', { headers: headersArrayToObject(this._calculateExtraHTTPHeaders(), false /* lowerCase */) }));
if (contextOptions.offline)
promises.push(session.send('Network.setEmulateOfflineState', { offline: true }));
promises.push(session.send('Page.setTouchEmulationEnabled', { enabled: !!contextOptions.hasTouch }));
if (contextOptions.timezoneId) {
promises.push(session.send('Page.setTimeZone', { timeZone: contextOptions.timezoneId }).
catch(e => { throw new Error(`Invalid timezone ID: ${contextOptions.timezoneId}`); }));
}
await Promise.all(promises);
}
private _onDidCommitProvisionalTarget(event: Protocol.Target.didCommitProvisionalTargetPayload) {
const { oldTargetId, newTargetId } = event;
assert(this._provisionalPage);
assert(this._provisionalPage._session.sessionId === newTargetId, 'Unknown new target: ' + newTargetId);
assert(this._session.sessionId === oldTargetId, 'Unknown old target: ' + oldTargetId);
this._session.errorText = 'Target was swapped out.';
const newSession = this._provisionalPage._session;
this._provisionalPage.commit();
this._provisionalPage.dispose();
this._provisionalPage = null;
this._setSession(newSession);
}
private _onTargetDestroyed(event: Protocol.Target.targetDestroyedPayload) {
const { targetId, crashed } = event;
if (this._provisionalPage && this._provisionalPage._session.sessionId === targetId) {
this._provisionalPage._session.dispose(false);
this._provisionalPage.dispose();
this._provisionalPage = null;
} else if (this._session.sessionId === targetId) {
this._session.dispose(false);
helper.removeEventListeners(this._sessionListeners);
if (crashed) {
this._session.markAsCrashed();
this._page._didCrash();
}
}
}
didClose() {
this._page._didClose();
}
dispose(disconnected: boolean) {
this._pageProxySession.dispose(disconnected);
helper.removeEventListeners(this._sessionListeners);
helper.removeEventListeners(this._eventListeners);
if (this._session)
this._session.dispose(disconnected);
if (this._provisionalPage) {
this._provisionalPage._session.dispose(disconnected);
this._provisionalPage.dispose();
this._provisionalPage = null;
}
this._page._didDisconnect();
this._firstNonInitialNavigationCommittedReject(new Error('Page closed'));
}
dispatchMessageToSession(message: any) {
this._pageProxySession.dispatchMessage(message);
}
handleProvisionalLoadFailed(event: Protocol.Playwright.provisionalLoadFailedPayload) {
if (!this._initializedPage) {
this._firstNonInitialNavigationCommittedReject(new Error('Initial load failed'));
return;
}
if (!this._provisionalPage)
return;
let errorText = event.error;
if (errorText.includes('cancelled'))
errorText += '; maybe frame was detached?';
this._page._frameManager.frameAbortedNavigation(this._page.mainFrame()._id, errorText, event.loaderId);
}
handleWindowOpen(event: Protocol.Playwright.windowOpenPayload) {
debugAssert(!this._nextWindowOpenPopupFeatures);
this._nextWindowOpenPopupFeatures = event.windowFeatures;
}
async pageOrError(): Promise<Page | Error> {
return this._pagePromise;
}
openerDelegate(): PageDelegate | null {
return this._opener;
}
private async _onTargetCreated(event: Protocol.Target.targetCreatedPayload) {
const { targetInfo } = event;
const session = new WKSession(this._pageProxySession.connection, targetInfo.targetId, `The ${targetInfo.type} has been closed.`, (message: any) => {
this._pageProxySession.send('Target.sendMessageToTarget', {
message: JSON.stringify(message), targetId: targetInfo.targetId
}).catch(e => {
session.dispatchMessage({ id: message.id, error: { message: e.message } });
});
});
assert(targetInfo.type === 'page', 'Only page targets are expected in WebKit, received: ' + targetInfo.type);
if (!targetInfo.isProvisional) {
assert(!this._initializedPage);
let pageOrError: Page | Error;
try {
this._setSession(session);
await Promise.all([
this._initializePageProxySession(),
this._initializeSession(session, false, ({frameTree}) => this._handleFrameTree(frameTree)),
]);
pageOrError = this._page;
} catch (e) {
pageOrError = e;
}
if (targetInfo.isPaused)
this._pageProxySession.sendMayFail('Target.resume', { targetId: targetInfo.targetId });
if ((pageOrError instanceof Page) && this._page.mainFrame().url() === '') {
try {
// Initial empty page has an empty url. We should wait until the first real url has been loaded,
// even if that url is about:blank. This is especially important for popups, where we need the
// actual url before interacting with it.
await this._firstNonInitialNavigationCommittedPromise;
} catch (e) {
pageOrError = e;
}
} else {
// Avoid rejection on disconnect.
this._firstNonInitialNavigationCommittedPromise.catch(() => {});
}
// Note: it is important to call |reportAsNew| before resolving pageOrError promise,
// so that anyone who awaits pageOrError got a ready and reported page.
this._initializedPage = pageOrError instanceof Page ? pageOrError : null;
this._page.reportAsNew(pageOrError instanceof Page ? undefined : pageOrError);
this._pagePromiseCallback(pageOrError);
} else {
assert(targetInfo.isProvisional);
assert(!this._provisionalPage);
this._provisionalPage = new WKProvisionalPage(session, this);
if (targetInfo.isPaused) {
this._provisionalPage.initializationPromise.then(() => {
this._pageProxySession.sendMayFail('Target.resume', { targetId: targetInfo.targetId });
});
}
}
}
private _onDispatchMessageFromTarget(event: Protocol.Target.dispatchMessageFromTargetPayload) {
const { targetId, message } = event;
if (this._provisionalPage && this._provisionalPage._session.sessionId === targetId)
this._provisionalPage._session.dispatchMessage(JSON.parse(message));
else if (this._session.sessionId === targetId)
this._session.dispatchMessage(JSON.parse(message));
else
throw new Error('Unknown target: ' + targetId);
}
private _addSessionListeners() {
// TODO: remove Page.willRequestOpenWindow and Page.didRequestOpenWindow from the protocol.
this._sessionListeners = [
helper.addEventListener(this._session, 'Page.frameNavigated', event => this._onFrameNavigated(event.frame, false)),
helper.addEventListener(this._session, 'Page.navigatedWithinDocument', event => this._onFrameNavigatedWithinDocument(event.frameId, event.url)),
helper.addEventListener(this._session, 'Page.frameAttached', event => this._onFrameAttached(event.frameId, event.parentFrameId)),
helper.addEventListener(this._session, 'Page.frameDetached', event => this._onFrameDetached(event.frameId)),
helper.addEventListener(this._session, 'Page.frameScheduledNavigation', event => this._onFrameScheduledNavigation(event.frameId)),
helper.addEventListener(this._session, 'Page.frameStoppedLoading', event => this._onFrameStoppedLoading(event.frameId)),
helper.addEventListener(this._session, 'Page.loadEventFired', event => this._onLifecycleEvent(event.frameId, 'load')),
helper.addEventListener(this._session, 'Page.domContentEventFired', event => this._onLifecycleEvent(event.frameId, 'domcontentloaded')),
helper.addEventListener(this._session, 'Runtime.executionContextCreated', event => this._onExecutionContextCreated(event.context)),
helper.addEventListener(this._session, 'Console.messageAdded', event => this._onConsoleMessage(event)),
helper.addEventListener(this._session, 'Console.messageRepeatCountUpdated', event => this._onConsoleRepeatCountUpdated(event)),
helper.addEventListener(this._pageProxySession, 'Dialog.javascriptDialogOpening', event => this._onDialog(event)),
helper.addEventListener(this._session, 'Page.fileChooserOpened', event => this._onFileChooserOpened(event)),
helper.addEventListener(this._session, 'Network.requestWillBeSent', e => this._onRequestWillBeSent(this._session, e)),
helper.addEventListener(this._session, 'Network.requestIntercepted', e => this._onRequestIntercepted(e)),
helper.addEventListener(this._session, 'Network.responseReceived', e => this._onResponseReceived(e)),
helper.addEventListener(this._session, 'Network.loadingFinished', e => this._onLoadingFinished(e)),
helper.addEventListener(this._session, 'Network.loadingFailed', e => this._onLoadingFailed(e)),
helper.addEventListener(this._session, 'Network.webSocketCreated', e => this._page._frameManager.onWebSocketCreated(e.requestId, e.url)),
helper.addEventListener(this._session, 'Network.webSocketWillSendHandshakeRequest', e => this._page._frameManager.onWebSocketRequest(e.requestId)),
helper.addEventListener(this._session, 'Network.webSocketHandshakeResponseReceived', e => this._page._frameManager.onWebSocketResponse(e.requestId, e.response.status, e.response.statusText)),
helper.addEventListener(this._session, 'Network.webSocketFrameSent', e => e.response.payloadData && this._page._frameManager.onWebSocketFrameSent(e.requestId, e.response.opcode, e.response.payloadData)),
helper.addEventListener(this._session, 'Network.webSocketFrameReceived', e => e.response.payloadData && this._page._frameManager.webSocketFrameReceived(e.requestId, e.response.opcode, e.response.payloadData)),
helper.addEventListener(this._session, 'Network.webSocketClosed', e => this._page._frameManager.webSocketClosed(e.requestId)),
helper.addEventListener(this._session, 'Network.webSocketFrameError', e => this._page._frameManager.webSocketError(e.requestId, e.errorMessage)),
];
}
private async _updateState<T extends keyof Protocol.CommandParameters>(
method: T,
params?: Protocol.CommandParameters[T]
): Promise<void> {
await this._forAllSessions(session => session.send(method, params).then());
}
private async _forAllSessions(callback: ((session: WKSession) => Promise<void>)): Promise<void> {
const sessions = [
this._session
];
// If the state changes during provisional load, push it to the provisional page
// as well to always be in sync with the backend.
if (this._provisionalPage)
sessions.push(this._provisionalPage._session);
await Promise.all(sessions.map(session => callback(session).catch(e => {})));
}
private _onFrameScheduledNavigation(frameId: string) {
this._page._frameManager.frameRequestedNavigation(frameId);
}
private _onFrameStoppedLoading(frameId: string) {
this._page._frameManager.frameStoppedLoading(frameId);
}
private _onLifecycleEvent(frameId: string, event: types.LifecycleEvent) {
this._page._frameManager.frameLifecycleEvent(frameId, event);
}
private _handleFrameTree(frameTree: Protocol.Page.FrameResourceTree) {
this._onFrameAttached(frameTree.frame.id, frameTree.frame.parentId || null);
this._onFrameNavigated(frameTree.frame, true);
this._page._frameManager.frameLifecycleEvent(frameTree.frame.id, 'domcontentloaded');
this._page._frameManager.frameLifecycleEvent(frameTree.frame.id, 'load');
if (!frameTree.childFrames)
return;
for (const child of frameTree.childFrames)
this._handleFrameTree(child);
}
_onFrameAttached(frameId: string, parentFrameId: string | null): frames.Frame {
return this._page._frameManager.frameAttached(frameId, parentFrameId);
}
private _onFrameNavigated(framePayload: Protocol.Page.Frame, initial: boolean) {
const frame = this._page._frameManager.frame(framePayload.id);
assert(frame);
this._removeContextsForFrame(frame, true);
if (!framePayload.parentId)
this._workers.clear();
this._page._frameManager.frameCommittedNewDocumentNavigation(framePayload.id, framePayload.url, framePayload.name || '', framePayload.loaderId, initial);
if (!initial)
this._firstNonInitialNavigationCommittedFulfill();
}
private _onFrameNavigatedWithinDocument(frameId: string, url: string) {
this._page._frameManager.frameCommittedSameDocumentNavigation(frameId, url);
}
private _onFrameDetached(frameId: string) {
this._page._frameManager.frameDetached(frameId);
}
private _removeContextsForFrame(frame: frames.Frame, notifyFrame: boolean) {
for (const [contextId, context] of this._contextIdToContext) {
if (context.frame === frame) {
(context._delegate as WKExecutionContext)._dispose();
this._contextIdToContext.delete(contextId);
if (notifyFrame)
frame._contextDestroyed(context);
}
}
}
private _onExecutionContextCreated(contextPayload: Protocol.Runtime.ExecutionContextDescription) {
if (this._contextIdToContext.has(contextPayload.id))
return;
const frame = this._page._frameManager.frame(contextPayload.frameId);
if (!frame)
return;
const delegate = new WKExecutionContext(this._session, contextPayload.id);
let worldName: types.World|null = null;
if (contextPayload.type === 'normal')
worldName = 'main';
else if (contextPayload.type === 'user' && contextPayload.name === UTILITY_WORLD_NAME)
worldName = 'utility';
const context = new dom.FrameExecutionContext(delegate, frame, worldName);
if (worldName)
frame._contextCreated(worldName, context);
if (contextPayload.type === 'normal' && frame === this._page.mainFrame())
this._mainFrameContextId = contextPayload.id;
this._contextIdToContext.set(contextPayload.id, context);
}
async navigateFrame(frame: frames.Frame, url: string, referrer: string | undefined): Promise<frames.GotoResult> {
if (this._pageProxySession.isDisposed())
throw new Error('Target closed');
const pageProxyId = this._pageProxySession.sessionId;
const result = await this._pageProxySession.connection.browserSession.send('Playwright.navigate', { url, pageProxyId, frameId: frame._id, referrer });
return { newDocumentId: result.loaderId };
}
private _onConsoleMessage(event: Protocol.Console.messageAddedPayload) {
// Note: do no introduce await in this function, otherwise we lose the ordering.
// For example, frame.setContent relies on this.
const { type, level, text, parameters, url, line: lineNumber, column: columnNumber, source } = event.message;
if (level === 'debug' && parameters && parameters[0].value === BINDING_CALL_MESSAGE) {
const parsedObjectId = JSON.parse(parameters[1].objectId!);
const context = this._contextIdToContext.get(parsedObjectId.injectedScriptId)!;
this.pageOrError().then(pageOrError => {
if (!(pageOrError instanceof Error))
this._page._onBindingCalled(parameters[2].value, context);
});
return;
}
if (level === 'error' && source === 'javascript') {
const message = text.startsWith('Error: ') ? text.substring(7) : text;
const error = new Error(message);
if (event.message.stackTrace) {
error.stack = event.message.stackTrace.map(callFrame => {
return `${callFrame.functionName}@${callFrame.url}:${callFrame.lineNumber}:${callFrame.columnNumber}`;
}).join('\n');
} else {
error.stack = '';
}
this._page.emit(Page.Events.PageError, error);
return;
}
let derivedType: string = type || '';
if (type === 'log')
derivedType = level;
else if (type === 'timing')
derivedType = 'timeEnd';
const handles = (parameters || []).map(p => {
let context: dom.FrameExecutionContext | null = null;
if (p.objectId) {
const objectId = JSON.parse(p.objectId);
context = this._contextIdToContext.get(objectId.injectedScriptId)!;
} else {
context = this._contextIdToContext.get(this._mainFrameContextId!)!;
}
return context.createHandle(p);
});
this._lastConsoleMessage = {
derivedType,
text,
handles,
count: 0,
location: {
url: url || '',
lineNumber: (lineNumber || 1) - 1,
columnNumber: (columnNumber || 1) - 1,
}
};
this._onConsoleRepeatCountUpdated({ count: 1});
}
_onConsoleRepeatCountUpdated(event: Protocol.Console.messageRepeatCountUpdatedPayload) {
if (this._lastConsoleMessage) {
const {
derivedType,
text,
handles,
count,
location
} = this._lastConsoleMessage;
for (let i = count; i < event.count; ++i)
this._page._addConsoleMessage(derivedType, handles, location, handles.length ? undefined : text);
this._lastConsoleMessage.count = event.count;
}
}
_onDialog(event: Protocol.Dialog.javascriptDialogOpeningPayload) {
this._page.emit(Page.Events.Dialog, new dialog.Dialog(
this._page,
event.type as dialog.DialogType,
event.message,
async (accept: boolean, promptText?: string) => {
await this._pageProxySession.send('Dialog.handleJavaScriptDialog', { accept, promptText });
},
event.defaultPrompt));
}
private async _onFileChooserOpened(event: {frameId: Protocol.Network.FrameId, element: Protocol.Runtime.RemoteObject}) {
let handle;
try {
const context = await this._page._frameManager.frame(event.frameId)!._mainContext();
handle = context.createHandle(event.element).asElement()!;
} catch (e) {
// During async processing, frame/context may go away. We should not throw.
return;
}
await this._page._onFileChooserOpened(handle);
}
private static async _setEmulateMedia(session: WKSession, mediaType: types.MediaType | null, colorScheme: types.ColorScheme | null): Promise<void> {
const promises = [];
promises.push(session.send('Page.setEmulatedMedia', { media: mediaType || '' }));
if (colorScheme !== null) {
let appearance: any = '';
switch (colorScheme) {
case 'light': appearance = 'Light'; break;
case 'dark': appearance = 'Dark'; break;
}
promises.push(session.send('Page.setForcedAppearance', { appearance }));
}
await Promise.all(promises);
}
async updateExtraHTTPHeaders(): Promise<void> {
await this._updateState('Network.setExtraHTTPHeaders', { headers: headersArrayToObject(this._calculateExtraHTTPHeaders(), false /* lowerCase */) });
}
_calculateExtraHTTPHeaders(): types.HeadersArray {
const locale = this._browserContext._options.locale;
const headers = network.mergeHeaders([
this._browserContext._options.extraHTTPHeaders,
this._page._state.extraHTTPHeaders,
locale ? network.singleHeader('Accept-Language', locale) : undefined,
]);
return headers;
}
async updateEmulateMedia(): Promise<void> {
const colorScheme = this._page._state.colorScheme || this._browserContext._options.colorScheme || 'light';
await this._forAllSessions(session => WKPage._setEmulateMedia(session, this._page._state.mediaType, colorScheme));
}
async setEmulatedSize(emulatedSize: types.EmulatedSize): Promise<void> {
assert(this._page._state.emulatedSize === emulatedSize);
await this._updateViewport();
}
async bringToFront(): Promise<void> {
this._pageProxySession.send('Target.activate', {
targetId: this._session.sessionId
});
}
async _updateViewport(): Promise<void> {
const options = this._browserContext._options;
const deviceSize = this._page._state.emulatedSize;
if (deviceSize === null)
return;
const viewportSize = deviceSize.viewport;
const screenSize = deviceSize.screen;
const promises: Promise<any>[] = [
this._pageProxySession.send('Emulation.setDeviceMetricsOverride', {
width: viewportSize.width,
height: viewportSize.height,
fixedLayout: !!options.isMobile,
deviceScaleFactor: options.deviceScaleFactor || 1
}),
this._session.send('Page.setScreenSizeOverride', {
width: screenSize.width,
height: screenSize.height,
}),
];
if (options.isMobile) {
const angle = viewportSize.width > viewportSize.height ? 90 : 0;
promises.push(this._session.send('Page.setOrientationOverride', { angle }));
}
await Promise.all(promises);
}
async updateRequestInterception(): Promise<void> {
const enabled = this._page._needsRequestInterception();
await Promise.all([
this._updateState('Network.setInterceptionEnabled', { enabled }),
this._updateState('Network.addInterception', { url: '.*', stage: 'request', isRegex: true })
]);
}
async updateOffline() {
await this._updateState('Network.setEmulateOfflineState', { offline: !!this._browserContext._options.offline });
}
async updateHttpCredentials() {
const credentials = this._browserContext._options.httpCredentials || { username: '', password: '' };
await this._pageProxySession.send('Emulation.setAuthCredentials', { username: credentials.username, password: credentials.password });
}
async setFileChooserIntercepted(enabled: boolean) {
await this._session.send('Page.setInterceptFileChooserDialog', { enabled }).catch(e => {}); // target can be closed.
}
async opener(): Promise<Page | null> {
if (!this._opener)
return null;
const openerPage = await this._opener.pageOrError();
if (openerPage instanceof Page && !openerPage.isClosed())
return openerPage;
return null;
}
async reload(): Promise<void> {
await this._session.send('Page.reload');
}
goBack(): Promise<boolean> {
return this._session.send('Page.goBack').then(() => true).catch(error => {
if (error instanceof Error && error.message.includes(`Protocol error (Page.goBack): Failed to go`))
return false;
throw error;
});
}
goForward(): Promise<boolean> {
return this._session.send('Page.goForward').then(() => true).catch(error => {
if (error instanceof Error && error.message.includes(`Protocol error (Page.goForward): Failed to go`))
return false;
throw error;
});
}
async exposeBinding(binding: PageBinding): Promise<void> {
if (binding.world !== 'main')
throw new Error('Only main context bindings are supported in WebKit.');
await this._updateBootstrapScript();
await this._evaluateBindingScript(binding);
}
private async _evaluateBindingScript(binding: PageBinding): Promise<void> {
if (binding.world !== 'main')
throw new Error('Only main context bindings are supported in WebKit.');
const script = this._bindingToScript(binding);
await Promise.all(this._page.frames().map(frame => frame.evaluateExpression(script, false, {}).catch(e => {})));
}
async evaluateOnNewDocument(script: string): Promise<void> {
await this._updateBootstrapScript();
}
private _bindingToScript(binding: PageBinding): string {
return `self.${binding.name} = (param) => console.debug('${BINDING_CALL_MESSAGE}', {}, param); ${binding.source}`;
}
private _calculateBootstrapScript(): string {
const scripts: string[] = [];
for (const binding of this._page.allBindings())
scripts.push(this._bindingToScript(binding));
scripts.push(...this._browserContext._evaluateOnNewDocumentSources);
scripts.push(...this._page._evaluateOnNewDocumentSources);
return scripts.join(';');
}
async _updateBootstrapScript(): Promise<void> {
await this._updateState('Page.setBootstrapScript', { source: this._calculateBootstrapScript() });
}
async closePage(runBeforeUnload: boolean): Promise<void> {
await this._stopScreencast();
await this._pageProxySession.sendMayFail('Target.close', {
targetId: this._session.sessionId,
runBeforeUnload
});
}
canScreenshotOutsideViewport(): boolean {
return true;
}
async setBackgroundColor(color?: { r: number; g: number; b: number; a: number; }): Promise<void> {
await this._session.send('Page.setDefaultBackgroundColorOverride', { color });
}
async _startScreencast(options: types.PageScreencastOptions): Promise<void> {
assert(!this._recordingVideoFile);
const { screencastId } = await this._pageProxySession.send('Screencast.start', {
file: options.outputFile,
width: options.width,
height: options.height,
});
this._recordingVideoFile = options.outputFile;
this._browserContext._browser._videoStarted(this._browserContext, screencastId, options.outputFile, this.pageOrError());
}
async _stopScreencast(): Promise<void> {
if (!this._recordingVideoFile)
return;
await this._pageProxySession.sendMayFail('Screencast.stop');
this._recordingVideoFile = null;
}
async takeScreenshot(format: string, documentRect: types.Rect | undefined, viewportRect: types.Rect | undefined, quality: number | undefined): Promise<Buffer> {
const rect = (documentRect || viewportRect)!;
const result = await this._session.send('Page.snapshotRect', { ...rect, coordinateSystem: documentRect ? 'Page' : 'Viewport' });
const prefix = 'data:image/png;base64,';
let buffer = Buffer.from(result.dataURL.substr(prefix.length), 'base64');
if (format === 'jpeg')
buffer = jpeg.encode(png.PNG.sync.read(buffer), quality).data;
return buffer;
}
async resetViewport(): Promise<void> {
assert(false, 'Should not be called');
}
async getContentFrame(handle: dom.ElementHandle): Promise<frames.Frame | null> {
const nodeInfo = await this._session.send('DOM.describeNode', {
objectId: handle._objectId
});
if (!nodeInfo.contentFrameId)
return null;
return this._page._frameManager.frame(nodeInfo.contentFrameId);
}
async getOwnerFrame(handle: dom.ElementHandle): Promise<string | null> {
if (!handle._objectId)
return null;
const nodeInfo = await this._session.send('DOM.describeNode', {
objectId: handle._objectId
});
return nodeInfo.ownerFrameId || null;
}
isElementHandle(remoteObject: any): boolean {
return (remoteObject as Protocol.Runtime.RemoteObject).subtype === 'node';
}
async getBoundingBox(handle: dom.ElementHandle): Promise<types.Rect | null> {
const quads = await this.getContentQuads(handle);
if (!quads || !quads.length)
return null;
let minX = Infinity;
let maxX = -Infinity;
let minY = Infinity;
let maxY = -Infinity;
for (const quad of quads) {
for (const point of quad) {
minX = Math.min(minX, point.x);
maxX = Math.max(maxX, point.x);
minY = Math.min(minY, point.y);
maxY = Math.max(maxY, point.y);
}
}
return { x: minX, y: minY, width: maxX - minX, height: maxY - minY };
}
async scrollRectIntoViewIfNeeded(handle: dom.ElementHandle, rect?: types.Rect): Promise<'error:notvisible' | 'error:notconnected' | 'done'> {
return await this._session.send('DOM.scrollIntoViewIfNeeded', {
objectId: handle._objectId,
rect,
}).then(() => 'done' as const).catch(e => {
if (e instanceof Error && e.message.includes('Node does not have a layout object'))
return 'error:notvisible';
if (e instanceof Error && e.message.includes('Node is detached from document'))
return 'error:notconnected';
throw e;
});
}
rafCountForStablePosition(): number {
return process.platform === 'win32' ? 5 : 1;
}
async getContentQuads(handle: dom.ElementHandle): Promise<types.Quad[] | null> {
const result = await this._session.sendMayFail('DOM.getContentQuads', {
objectId: handle._objectId
});
if (!result)
return null;
return result.quads.map(quad => [
{ x: quad[0], y: quad[1] },
{ x: quad[2], y: quad[3] },
{ x: quad[4], y: quad[5] },
{ x: quad[6], y: quad[7] }
]);
}
async setInputFiles(handle: dom.ElementHandle<HTMLInputElement>, files: types.FilePayload[]): Promise<void> {
const objectId = handle._objectId;
const protocolFiles = files.map(file => ({
name: file.name,
type: file.mimeType,
data: file.buffer,
}));
await this._session.send('DOM.setInputFiles', { objectId, files: protocolFiles });
}
async adoptElementHandle<T extends Node>(handle: dom.ElementHandle<T>, to: dom.FrameExecutionContext): Promise<dom.ElementHandle<T>> {
const result = await this._session.sendMayFail('DOM.resolveNode', {
objectId: handle._objectId,
executionContextId: (to._delegate as WKExecutionContext)._contextId
});
if (!result || result.object.subtype === 'null')
throw new Error('Unable to adopt element handle from a different document');
return to.createHandle(result.object) as dom.ElementHandle<T>;
}
async getAccessibilityTree(needle?: dom.ElementHandle): Promise<{tree: accessibility.AXNode, needle: accessibility.AXNode | null}> {
return getAccessibilityTree(this._session, needle);
}
async inputActionEpilogue(): Promise<void> {
}
async getFrameElement(frame: frames.Frame): Promise<dom.ElementHandle> {
const parent = frame.parentFrame();
if (!parent)
throw new Error('Frame has been detached.');
const handles = await this._page.selectors._queryAll(parent, 'iframe', undefined);
const items = await Promise.all(handles.map(async handle => {
const frame = await handle.contentFrame().catch(e => null);
return { handle, frame };
}));
const result = items.find(item => item.frame === frame);
items.map(item => item === result ? Promise.resolve() : item.handle.dispose());
if (!result)
throw new Error('Frame has been detached.');
return result.handle;
}
_onRequestWillBeSent(session: WKSession, event: Protocol.Network.requestWillBeSentPayload) {
if (event.request.url.startsWith('data:'))
return;
let redirectedFrom: network.Request | null = null;
if (event.redirectResponse) {
const request = this._requestIdToRequest.get(event.requestId);
// If we connect late to the target, we could have missed the requestWillBeSent event.
if (request) {
this._handleRequestRedirect(request, event.redirectResponse, event.timestamp);
redirectedFrom = request.request;
}
}
const frame = this._page._frameManager.frame(event.frameId)!;
// TODO(einbinder) this will fail if we are an XHR document request
const isNavigationRequest = event.type === 'Document';
const documentId = isNavigationRequest ? event.loaderId : undefined;
// We do not support intercepting redirects.
const allowInterception = this._page._needsRequestInterception() && !redirectedFrom;
const request = new WKInterceptableRequest(session, allowInterception, frame, event, redirectedFrom, documentId);
this._requestIdToRequest.set(event.requestId, request);
this._page._frameManager.requestStarted(request.request);
}
private _handleRequestRedirect(request: WKInterceptableRequest, responsePayload: Protocol.Network.Response, timestamp: number) {
const response = request.createResponse(responsePayload);
response._requestFinished(responsePayload.timing ? helper.secondsToRoundishMillis(timestamp - request._timestamp) : -1, 'Response body is unavailable for redirect responses');
this._requestIdToRequest.delete(request._requestId);
this._page._frameManager.requestReceivedResponse(response);
this._page._frameManager.requestFinished(request.request);
}
_onRequestIntercepted(event: Protocol.Network.requestInterceptedPayload) {
const request = this._requestIdToRequest.get(event.requestId);
if (!request)
return;
if (!request._allowInterception) {
// Intercepted, although we do not intend to allow interception.
// Just continue.
this._session.sendMayFail('Network.interceptWithRequest', { requestId: request._requestId });
} else {
request._interceptedCallback();
}
}
_onResponseReceived(event: Protocol.Network.responseReceivedPayload) {
const request = this._requestIdToRequest.get(event.requestId);
// FileUpload sends a response without a matching request.
if (!request)
return;
const response = request.createResponse(event.response);
if (event.response.requestHeaders && Object.keys(event.response.requestHeaders).length)
request.request.updateWithRawHeaders(headersObjectToArray(event.response.requestHeaders));
this._page._frameManager.requestReceivedResponse(response);
if (response.status() === 204) {
this._onLoadingFailed({
requestId: event.requestId,
errorText: 'Aborted: 204 No Content',
timestamp: event.timestamp
});
}
}
_onLoadingFinished(event: Protocol.Network.loadingFinishedPayload) {
const request = this._requestIdToRequest.get(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
const response = request.request._existingResponse();
if (response)
response._requestFinished(helper.secondsToRoundishMillis(event.timestamp - request._timestamp));
this._requestIdToRequest.delete(request._requestId);
this._page._frameManager.requestFinished(request.request);
}
_onLoadingFailed(event: Protocol.Network.loadingFailedPayload) {
const request = this._requestIdToRequest.get(event.requestId);
// For certain requestIds we never receive requestWillBeSent event.
// @see https://crbug.com/750469
if (!request)
return;
const response = request.request._existingResponse();
if (response)
response._requestFinished(helper.secondsToRoundishMillis(event.timestamp - request._timestamp));
this._requestIdToRequest.delete(request._requestId);
request.request._setFailureText(event.errorText);
this._page._frameManager.requestFailed(request.request, event.errorText.includes('cancelled'));
}
async _grantPermissions(origin: string, permissions: string[]) {
const webPermissionToProtocol = new Map<string, string>([
['geolocation', 'geolocation'],
]);
const filtered = permissions.map(permission => {
const protocolPermission = webPermissionToProtocol.get(permission);
if (!protocolPermission)
throw new Error('Unknown permission: ' + permission);
return protocolPermission;
});
await this._pageProxySession.send('Emulation.grantPermissions', { origin, permissions: filtered });
}
async _clearPermissions() {