mirror of
https://github.com/puppeteer/puppeteer
synced 2024-06-14 14:02:48 +00:00
1347 lines
40 KiB
TypeScript
1347 lines
40 KiB
TypeScript
/**
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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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import * as fs from 'fs';
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import * as EventEmitter from 'events';
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import * as mime from 'mime';
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import { Events } from './Events';
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import { Connection, CDPSession } from './Connection';
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import { Dialog } from './Dialog';
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import { EmulationManager } from './EmulationManager';
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import { Frame, FrameManager } from './FrameManager';
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import { Keyboard, Mouse, Touchscreen, MouseButtonInput } from './Input';
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import { Tracing } from './Tracing';
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import { helper, debugError, assert } from './helper';
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import { Coverage } from './Coverage';
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import { WebWorker } from './WebWorker';
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import { Browser, BrowserContext } from './Browser';
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import { Target } from './Target';
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import { createJSHandle, JSHandle, ElementHandle } from './JSHandle';
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import { Viewport } from './PuppeteerViewport';
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import { Credentials } from './NetworkManager';
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import { HTTPRequest } from './HTTPRequest';
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import { HTTPResponse } from './HTTPResponse';
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import { Accessibility } from './Accessibility';
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import { TimeoutSettings } from './TimeoutSettings';
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import { FileChooser } from './FileChooser';
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import { ConsoleMessage } from './ConsoleMessage';
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import { PuppeteerLifeCycleEvent } from './LifecycleWatcher';
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import Protocol from './protocol';
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const writeFileAsync = helper.promisify(fs.writeFile);
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interface Metrics {
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Timestamp?: number;
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Documents?: number;
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Frames?: number;
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JSEventListeners?: number;
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Nodes?: number;
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LayoutCount?: number;
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RecalcStyleCount?: number;
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LayoutDuration?: number;
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RecalcStyleDuration?: number;
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ScriptDuration?: number;
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TaskDuration?: number;
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JSHeapUsedSize?: number;
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JSHeapTotalSize?: number;
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}
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interface WaitForOptions {
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timeout?: number;
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waitUntil?: PuppeteerLifeCycleEvent | PuppeteerLifeCycleEvent[];
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}
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interface MediaFeature {
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name: string;
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value: string;
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}
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interface ScreenshotClip {
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x: number;
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y: number;
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width: number;
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height: number;
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}
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interface ScreenshotOptions {
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type?: 'png' | 'jpeg';
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path?: string;
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fullPage?: boolean;
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clip?: ScreenshotClip;
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quality?: number;
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omitBackground?: boolean;
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encoding?: string;
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}
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interface PDFMargin {
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top?: string | number;
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bottom?: string | number;
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left?: string | number;
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right?: string | number;
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}
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interface PDFOptions {
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scale?: number;
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displayHeaderFooter?: boolean;
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headerTemplate?: string;
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footerTemplate?: string;
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printBackground?: boolean;
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landscape?: boolean;
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pageRanges?: string;
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format?: string;
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width?: string | number;
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height?: string | number;
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preferCSSPageSize?: boolean;
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margin?: PDFMargin;
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path?: string;
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}
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interface PaperFormat {
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width: number;
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height: number;
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}
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const paperFormats: Record<string, PaperFormat> = {
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letter: { width: 8.5, height: 11 },
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legal: { width: 8.5, height: 14 },
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tabloid: { width: 11, height: 17 },
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ledger: { width: 17, height: 11 },
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a0: { width: 33.1, height: 46.8 },
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a1: { width: 23.4, height: 33.1 },
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a2: { width: 16.54, height: 23.4 },
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a3: { width: 11.7, height: 16.54 },
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a4: { width: 8.27, height: 11.7 },
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a5: { width: 5.83, height: 8.27 },
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a6: { width: 4.13, height: 5.83 },
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} as const;
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enum VisionDeficiency {
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none = 'none',
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achromatopsia = 'achromatopsia',
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blurredVision = 'blurredVision',
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deuteranopia = 'deuteranopia',
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protanopia = 'protanopia',
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tritanopia = 'tritanopia',
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}
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class ScreenshotTaskQueue {
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_chain: Promise<Buffer | string | void>;
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constructor() {
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this._chain = Promise.resolve<Buffer | string | void>(undefined);
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}
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public postTask(
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task: () => Promise<Buffer | string>
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): Promise<Buffer | string | void> {
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const result = this._chain.then(task);
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this._chain = result.catch(() => {});
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return result;
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}
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}
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export class Page extends EventEmitter {
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static async create(
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client: CDPSession,
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target: Target,
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ignoreHTTPSErrors: boolean,
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defaultViewport: Viewport | null
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): Promise<Page> {
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const page = new Page(client, target, ignoreHTTPSErrors);
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await page._initialize();
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if (defaultViewport) await page.setViewport(defaultViewport);
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return page;
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}
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_closed = false;
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_client: CDPSession;
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_target: Target;
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_keyboard: Keyboard;
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_mouse: Mouse;
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_timeoutSettings = new TimeoutSettings();
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_touchscreen: Touchscreen;
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_accessibility: Accessibility;
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_frameManager: FrameManager;
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_emulationManager: EmulationManager;
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_tracing: Tracing;
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_pageBindings = new Map<string, Function>();
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_coverage: Coverage;
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_javascriptEnabled = true;
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_viewport: Viewport | null;
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_screenshotTaskQueue: ScreenshotTaskQueue;
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_workers = new Map<string, WebWorker>();
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// TODO: improve this typedef - it's a function that takes a file chooser or something?
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_fileChooserInterceptors = new Set<Function>();
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_disconnectPromise?: Promise<Error>;
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constructor(client: CDPSession, target: Target, ignoreHTTPSErrors: boolean) {
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super();
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this._client = client;
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this._target = target;
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this._keyboard = new Keyboard(client);
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this._mouse = new Mouse(client, this._keyboard);
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this._touchscreen = new Touchscreen(client, this._keyboard);
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this._accessibility = new Accessibility(client);
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this._frameManager = new FrameManager(
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client,
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this,
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ignoreHTTPSErrors,
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this._timeoutSettings
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);
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this._emulationManager = new EmulationManager(client);
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this._tracing = new Tracing(client);
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this._coverage = new Coverage(client);
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this._screenshotTaskQueue = new ScreenshotTaskQueue();
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this._viewport = null;
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client.on('Target.attachedToTarget', (event) => {
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if (event.targetInfo.type !== 'worker') {
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// If we don't detach from service workers, they will never die.
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client
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.send('Target.detachFromTarget', {
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sessionId: event.sessionId,
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})
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.catch(debugError);
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return;
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}
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const session = Connection.fromSession(client).session(event.sessionId);
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const worker = new WebWorker(
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session,
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event.targetInfo.url,
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this._addConsoleMessage.bind(this),
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this._handleException.bind(this)
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);
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this._workers.set(event.sessionId, worker);
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this.emit(Events.Page.WorkerCreated, worker);
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});
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client.on('Target.detachedFromTarget', (event) => {
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const worker = this._workers.get(event.sessionId);
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if (!worker) return;
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this.emit(Events.Page.WorkerDestroyed, worker);
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this._workers.delete(event.sessionId);
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});
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this._frameManager.on(Events.FrameManager.FrameAttached, (event) =>
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this.emit(Events.Page.FrameAttached, event)
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);
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this._frameManager.on(Events.FrameManager.FrameDetached, (event) =>
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this.emit(Events.Page.FrameDetached, event)
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);
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this._frameManager.on(Events.FrameManager.FrameNavigated, (event) =>
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this.emit(Events.Page.FrameNavigated, event)
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);
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const networkManager = this._frameManager.networkManager();
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networkManager.on(Events.NetworkManager.Request, (event) =>
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this.emit(Events.Page.Request, event)
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);
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networkManager.on(Events.NetworkManager.Response, (event) =>
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this.emit(Events.Page.Response, event)
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);
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networkManager.on(Events.NetworkManager.RequestFailed, (event) =>
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this.emit(Events.Page.RequestFailed, event)
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);
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networkManager.on(Events.NetworkManager.RequestFinished, (event) =>
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this.emit(Events.Page.RequestFinished, event)
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);
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this._fileChooserInterceptors = new Set();
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client.on('Page.domContentEventFired', () =>
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this.emit(Events.Page.DOMContentLoaded)
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);
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client.on('Page.loadEventFired', () => this.emit(Events.Page.Load));
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client.on('Runtime.consoleAPICalled', (event) => this._onConsoleAPI(event));
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client.on('Runtime.bindingCalled', (event) => this._onBindingCalled(event));
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client.on('Page.javascriptDialogOpening', (event) => this._onDialog(event));
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client.on('Runtime.exceptionThrown', (exception) =>
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this._handleException(exception.exceptionDetails)
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);
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client.on('Inspector.targetCrashed', () => this._onTargetCrashed());
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client.on('Performance.metrics', (event) => this._emitMetrics(event));
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client.on('Log.entryAdded', (event) => this._onLogEntryAdded(event));
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client.on('Page.fileChooserOpened', (event) => this._onFileChooser(event));
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this._target._isClosedPromise.then(() => {
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this.emit(Events.Page.Close);
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this._closed = true;
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});
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}
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async _initialize(): Promise<void> {
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await Promise.all([
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this._frameManager.initialize(),
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this._client.send('Target.setAutoAttach', {
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autoAttach: true,
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waitForDebuggerOnStart: false,
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flatten: true,
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}),
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this._client.send('Performance.enable', {}),
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this._client.send('Log.enable', {}),
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]);
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}
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async _onFileChooser(
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event: Protocol.Page.fileChooserOpenedPayload
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): Promise<void> {
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if (!this._fileChooserInterceptors.size) return;
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const frame = this._frameManager.frame(event.frameId);
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const context = await frame.executionContext();
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const element = await context._adoptBackendNodeId(event.backendNodeId);
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const interceptors = Array.from(this._fileChooserInterceptors);
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this._fileChooserInterceptors.clear();
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const fileChooser = new FileChooser(element, event);
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for (const interceptor of interceptors) interceptor.call(null, fileChooser);
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}
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async waitForFileChooser(
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options: { timeout?: number } = {}
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): Promise<FileChooser> {
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if (!this._fileChooserInterceptors.size)
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await this._client.send('Page.setInterceptFileChooserDialog', {
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enabled: true,
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});
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const { timeout = this._timeoutSettings.timeout() } = options;
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let callback;
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const promise = new Promise<FileChooser>((x) => (callback = x));
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this._fileChooserInterceptors.add(callback);
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return helper
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.waitWithTimeout<FileChooser>(
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promise,
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'waiting for file chooser',
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timeout
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)
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.catch((error) => {
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this._fileChooserInterceptors.delete(callback);
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throw error;
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});
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}
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async setGeolocation(options: {
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longitude: number;
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latitude: number;
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accuracy?: number;
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}): Promise<void> {
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const { longitude, latitude, accuracy = 0 } = options;
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if (longitude < -180 || longitude > 180)
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throw new Error(
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`Invalid longitude "${longitude}": precondition -180 <= LONGITUDE <= 180 failed.`
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);
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if (latitude < -90 || latitude > 90)
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throw new Error(
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`Invalid latitude "${latitude}": precondition -90 <= LATITUDE <= 90 failed.`
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);
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if (accuracy < 0)
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throw new Error(
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`Invalid accuracy "${accuracy}": precondition 0 <= ACCURACY failed.`
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);
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await this._client.send('Emulation.setGeolocationOverride', {
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longitude,
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latitude,
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accuracy,
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});
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}
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target(): Target {
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return this._target;
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}
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browser(): Browser {
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return this._target.browser();
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}
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browserContext(): BrowserContext {
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return this._target.browserContext();
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}
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_onTargetCrashed(): void {
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this.emit('error', new Error('Page crashed!'));
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}
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_onLogEntryAdded(event: Protocol.Log.entryAddedPayload): void {
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const { level, text, args, source, url, lineNumber } = event.entry;
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if (args) args.map((arg) => helper.releaseObject(this._client, arg));
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if (source !== 'worker')
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this.emit(
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Events.Page.Console,
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new ConsoleMessage(level, text, [], { url, lineNumber })
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);
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}
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mainFrame(): Frame {
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return this._frameManager.mainFrame();
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}
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get keyboard(): Keyboard {
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return this._keyboard;
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}
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get touchscreen(): Touchscreen {
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return this._touchscreen;
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}
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get coverage(): Coverage {
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return this._coverage;
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}
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get tracing(): Tracing {
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return this._tracing;
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}
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get accessibility(): Accessibility {
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return this._accessibility;
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}
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frames(): Frame[] {
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return this._frameManager.frames();
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}
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workers(): WebWorker[] {
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return Array.from(this._workers.values());
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}
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async setRequestInterception(value: boolean): Promise<void> {
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return this._frameManager.networkManager().setRequestInterception(value);
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}
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setOfflineMode(enabled: boolean): Promise<void> {
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return this._frameManager.networkManager().setOfflineMode(enabled);
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}
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setDefaultNavigationTimeout(timeout: number): void {
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this._timeoutSettings.setDefaultNavigationTimeout(timeout);
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}
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setDefaultTimeout(timeout: number): void {
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this._timeoutSettings.setDefaultTimeout(timeout);
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}
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async $(selector: string): Promise<ElementHandle | null> {
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return this.mainFrame().$(selector);
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}
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async evaluateHandle(
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pageFunction: Function | string,
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...args: unknown[]
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): Promise<JSHandle> {
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const context = await this.mainFrame().executionContext();
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return context.evaluateHandle(pageFunction, ...args);
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}
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async queryObjects(prototypeHandle: JSHandle): Promise<JSHandle> {
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const context = await this.mainFrame().executionContext();
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return context.queryObjects(prototypeHandle);
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}
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async $eval<ReturnType extends any>(
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selector: string,
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pageFunction: Function | string,
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...args: unknown[]
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): Promise<ReturnType> {
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return this.mainFrame().$eval<ReturnType>(selector, pageFunction, ...args);
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}
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async $$eval<ReturnType extends any>(
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selector: string,
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pageFunction: Function | string,
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...args: unknown[]
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): Promise<ReturnType> {
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return this.mainFrame().$$eval<ReturnType>(selector, pageFunction, ...args);
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}
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async $$(selector: string): Promise<ElementHandle[]> {
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return this.mainFrame().$$(selector);
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}
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async $x(expression: string): Promise<ElementHandle[]> {
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return this.mainFrame().$x(expression);
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}
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async cookies(...urls: string[]): Promise<Protocol.Network.Cookie[]> {
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const originalCookies = (
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await this._client.send('Network.getCookies', {
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urls: urls.length ? urls : [this.url()],
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})
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).cookies;
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const unsupportedCookieAttributes = ['priority'];
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const filterUnsupportedAttributes = (
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cookie: Protocol.Network.Cookie
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): Protocol.Network.Cookie => {
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for (const attr of unsupportedCookieAttributes) delete cookie[attr];
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return cookie;
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};
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return originalCookies.map(filterUnsupportedAttributes);
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}
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async deleteCookie(
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...cookies: Protocol.Network.deleteCookiesParameters[]
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): Promise<void> {
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const pageURL = this.url();
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for (const cookie of cookies) {
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const item = Object.assign({}, cookie);
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if (!cookie.url && pageURL.startsWith('http')) item.url = pageURL;
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await this._client.send('Network.deleteCookies', item);
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}
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}
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async setCookie(...cookies: Protocol.Network.CookieParam[]): Promise<void> {
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const pageURL = this.url();
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const startsWithHTTP = pageURL.startsWith('http');
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const items = cookies.map((cookie) => {
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const item = Object.assign({}, cookie);
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if (!item.url && startsWithHTTP) item.url = pageURL;
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assert(
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item.url !== 'about:blank',
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`Blank page can not have cookie "${item.name}"`
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);
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assert(
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!String.prototype.startsWith.call(item.url || '', 'data:'),
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`Data URL page can not have cookie "${item.name}"`
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);
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return item;
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});
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await this.deleteCookie(...items);
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if (items.length)
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await this._client.send('Network.setCookies', { cookies: items });
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}
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async addScriptTag(options: {
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url?: string;
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path?: string;
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content?: string;
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type?: string;
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}): Promise<ElementHandle> {
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return this.mainFrame().addScriptTag(options);
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}
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async addStyleTag(options: {
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url?: string;
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path?: string;
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content?: string;
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}): Promise<ElementHandle> {
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return this.mainFrame().addStyleTag(options);
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}
|
|
|
|
async exposeFunction(
|
|
name: string,
|
|
puppeteerFunction: Function
|
|
): Promise<void> {
|
|
if (this._pageBindings.has(name))
|
|
throw new Error(
|
|
`Failed to add page binding with name ${name}: window['${name}'] already exists!`
|
|
);
|
|
this._pageBindings.set(name, puppeteerFunction);
|
|
|
|
const expression = helper.evaluationString(addPageBinding, name);
|
|
await this._client.send('Runtime.addBinding', { name: name });
|
|
await this._client.send('Page.addScriptToEvaluateOnNewDocument', {
|
|
source: expression,
|
|
});
|
|
await Promise.all(
|
|
this.frames().map((frame) => frame.evaluate(expression).catch(debugError))
|
|
);
|
|
|
|
function addPageBinding(bindingName): void {
|
|
/* Cast window to any here as we're about to add properties to it
|
|
* via win[bindingName] which TypeScript doesn't like.
|
|
*/
|
|
const win = window as any;
|
|
const binding = win[bindingName];
|
|
|
|
win[bindingName] = (...args: unknown[]): Promise<unknown> => {
|
|
const me = window[bindingName];
|
|
let callbacks = me['callbacks'];
|
|
if (!callbacks) {
|
|
callbacks = new Map();
|
|
me['callbacks'] = callbacks;
|
|
}
|
|
const seq = (me['lastSeq'] || 0) + 1;
|
|
me['lastSeq'] = seq;
|
|
const promise = new Promise((resolve, reject) =>
|
|
callbacks.set(seq, { resolve, reject })
|
|
);
|
|
binding(JSON.stringify({ name: bindingName, seq, args }));
|
|
return promise;
|
|
};
|
|
}
|
|
}
|
|
|
|
async authenticate(credentials: Credentials): Promise<void> {
|
|
return this._frameManager.networkManager().authenticate(credentials);
|
|
}
|
|
|
|
async setExtraHTTPHeaders(headers: Record<string, string>): Promise<void> {
|
|
return this._frameManager.networkManager().setExtraHTTPHeaders(headers);
|
|
}
|
|
|
|
async setUserAgent(userAgent: string): Promise<void> {
|
|
return this._frameManager.networkManager().setUserAgent(userAgent);
|
|
}
|
|
|
|
async metrics(): Promise<Metrics> {
|
|
const response = await this._client.send('Performance.getMetrics');
|
|
return this._buildMetricsObject(response.metrics);
|
|
}
|
|
|
|
_emitMetrics(event: Protocol.Performance.metricsPayload): void {
|
|
this.emit(Events.Page.Metrics, {
|
|
title: event.title,
|
|
metrics: this._buildMetricsObject(event.metrics),
|
|
});
|
|
}
|
|
|
|
_buildMetricsObject(metrics?: Protocol.Performance.Metric[]): Metrics {
|
|
const result = {};
|
|
for (const metric of metrics || []) {
|
|
if (supportedMetrics.has(metric.name)) result[metric.name] = metric.value;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
_handleException(exceptionDetails: Protocol.Runtime.ExceptionDetails): void {
|
|
const message = helper.getExceptionMessage(exceptionDetails);
|
|
const err = new Error(message);
|
|
err.stack = ''; // Don't report clientside error with a node stack attached
|
|
this.emit(Events.Page.PageError, err);
|
|
}
|
|
|
|
async _onConsoleAPI(
|
|
event: Protocol.Runtime.consoleAPICalledPayload
|
|
): Promise<void> {
|
|
if (event.executionContextId === 0) {
|
|
// DevTools protocol stores the last 1000 console messages. These
|
|
// messages are always reported even for removed execution contexts. In
|
|
// this case, they are marked with executionContextId = 0 and are
|
|
// reported upon enabling Runtime agent.
|
|
//
|
|
// Ignore these messages since:
|
|
// - there's no execution context we can use to operate with message
|
|
// arguments
|
|
// - these messages are reported before Puppeteer clients can subscribe
|
|
// to the 'console'
|
|
// page event.
|
|
//
|
|
// @see https://github.com/puppeteer/puppeteer/issues/3865
|
|
return;
|
|
}
|
|
const context = this._frameManager.executionContextById(
|
|
event.executionContextId
|
|
);
|
|
const values = event.args.map((arg) => createJSHandle(context, arg));
|
|
this._addConsoleMessage(event.type, values, event.stackTrace);
|
|
}
|
|
|
|
async _onBindingCalled(
|
|
event: Protocol.Runtime.bindingCalledPayload
|
|
): Promise<void> {
|
|
const { name, seq, args } = JSON.parse(event.payload);
|
|
let expression = null;
|
|
try {
|
|
const result = await this._pageBindings.get(name)(...args);
|
|
expression = helper.evaluationString(deliverResult, name, seq, result);
|
|
} catch (error) {
|
|
if (error instanceof Error)
|
|
expression = helper.evaluationString(
|
|
deliverError,
|
|
name,
|
|
seq,
|
|
error.message,
|
|
error.stack
|
|
);
|
|
else
|
|
expression = helper.evaluationString(
|
|
deliverErrorValue,
|
|
name,
|
|
seq,
|
|
error
|
|
);
|
|
}
|
|
this._client
|
|
.send('Runtime.evaluate', {
|
|
expression,
|
|
contextId: event.executionContextId,
|
|
})
|
|
.catch(debugError);
|
|
|
|
function deliverResult(name: string, seq: number, result: unknown): void {
|
|
window[name]['callbacks'].get(seq).resolve(result);
|
|
window[name]['callbacks'].delete(seq);
|
|
}
|
|
|
|
function deliverError(
|
|
name: string,
|
|
seq: number,
|
|
message: string,
|
|
stack: string
|
|
): void {
|
|
const error = new Error(message);
|
|
error.stack = stack;
|
|
window[name]['callbacks'].get(seq).reject(error);
|
|
window[name]['callbacks'].delete(seq);
|
|
}
|
|
|
|
function deliverErrorValue(
|
|
name: string,
|
|
seq: number,
|
|
value: unknown
|
|
): void {
|
|
window[name]['callbacks'].get(seq).reject(value);
|
|
window[name]['callbacks'].delete(seq);
|
|
}
|
|
}
|
|
|
|
_addConsoleMessage(
|
|
type: string,
|
|
args: JSHandle[],
|
|
stackTrace?: Protocol.Runtime.StackTrace
|
|
): void {
|
|
if (!this.listenerCount(Events.Page.Console)) {
|
|
args.forEach((arg) => arg.dispose());
|
|
return;
|
|
}
|
|
const textTokens = [];
|
|
for (const arg of args) {
|
|
const remoteObject = arg._remoteObject;
|
|
if (remoteObject.objectId) textTokens.push(arg.toString());
|
|
else textTokens.push(helper.valueFromRemoteObject(remoteObject));
|
|
}
|
|
const location =
|
|
stackTrace && stackTrace.callFrames.length
|
|
? {
|
|
url: stackTrace.callFrames[0].url,
|
|
lineNumber: stackTrace.callFrames[0].lineNumber,
|
|
columnNumber: stackTrace.callFrames[0].columnNumber,
|
|
}
|
|
: {};
|
|
const message = new ConsoleMessage(
|
|
type,
|
|
textTokens.join(' '),
|
|
args,
|
|
location
|
|
);
|
|
this.emit(Events.Page.Console, message);
|
|
}
|
|
|
|
_onDialog(event: Protocol.Page.javascriptDialogOpeningPayload): void {
|
|
let dialogType = null;
|
|
if (event.type === 'alert') dialogType = Dialog.Type.Alert;
|
|
else if (event.type === 'confirm') dialogType = Dialog.Type.Confirm;
|
|
else if (event.type === 'prompt') dialogType = Dialog.Type.Prompt;
|
|
else if (event.type === 'beforeunload')
|
|
dialogType = Dialog.Type.BeforeUnload;
|
|
assert(dialogType, 'Unknown javascript dialog type: ' + event.type);
|
|
|
|
const dialog = new Dialog(
|
|
this._client,
|
|
dialogType,
|
|
event.message,
|
|
event.defaultPrompt
|
|
);
|
|
this.emit(Events.Page.Dialog, dialog);
|
|
}
|
|
|
|
url(): string {
|
|
return this.mainFrame().url();
|
|
}
|
|
|
|
async content(): Promise<string> {
|
|
return await this._frameManager.mainFrame().content();
|
|
}
|
|
|
|
async setContent(html: string, options: WaitForOptions): Promise<void> {
|
|
await this._frameManager.mainFrame().setContent(html, options);
|
|
}
|
|
|
|
async goto(
|
|
url: string,
|
|
options: WaitForOptions & { referer?: string }
|
|
): Promise<HTTPResponse> {
|
|
return await this._frameManager.mainFrame().goto(url, options);
|
|
}
|
|
|
|
async reload(options?: WaitForOptions): Promise<HTTPResponse | null> {
|
|
const result = await Promise.all<
|
|
HTTPResponse,
|
|
Protocol.Page.reloadReturnValue
|
|
>([this.waitForNavigation(options), this._client.send('Page.reload')]);
|
|
|
|
return result[0];
|
|
}
|
|
|
|
async waitForNavigation(
|
|
options: WaitForOptions = {}
|
|
): Promise<HTTPResponse | null> {
|
|
return await this._frameManager.mainFrame().waitForNavigation(options);
|
|
}
|
|
|
|
_sessionClosePromise(): Promise<Error> {
|
|
if (!this._disconnectPromise)
|
|
this._disconnectPromise = new Promise((fulfill) =>
|
|
this._client.once(Events.CDPSession.Disconnected, () =>
|
|
fulfill(new Error('Target closed'))
|
|
)
|
|
);
|
|
return this._disconnectPromise;
|
|
}
|
|
|
|
async waitForRequest(
|
|
urlOrPredicate: string | Function,
|
|
options: { timeout?: number } = {}
|
|
): Promise<HTTPRequest> {
|
|
const { timeout = this._timeoutSettings.timeout() } = options;
|
|
return helper.waitForEvent(
|
|
this._frameManager.networkManager(),
|
|
Events.NetworkManager.Request,
|
|
(request) => {
|
|
if (helper.isString(urlOrPredicate))
|
|
return urlOrPredicate === request.url();
|
|
if (typeof urlOrPredicate === 'function')
|
|
return !!urlOrPredicate(request);
|
|
return false;
|
|
},
|
|
timeout,
|
|
this._sessionClosePromise()
|
|
);
|
|
}
|
|
|
|
async waitForResponse(
|
|
urlOrPredicate: string | Function,
|
|
options: { timeout?: number } = {}
|
|
): Promise<HTTPResponse> {
|
|
const { timeout = this._timeoutSettings.timeout() } = options;
|
|
return helper.waitForEvent(
|
|
this._frameManager.networkManager(),
|
|
Events.NetworkManager.Response,
|
|
(response) => {
|
|
if (helper.isString(urlOrPredicate))
|
|
return urlOrPredicate === response.url();
|
|
if (typeof urlOrPredicate === 'function')
|
|
return !!urlOrPredicate(response);
|
|
return false;
|
|
},
|
|
timeout,
|
|
this._sessionClosePromise()
|
|
);
|
|
}
|
|
|
|
async goBack(options: WaitForOptions): Promise<HTTPResponse | null> {
|
|
return this._go(-1, options);
|
|
}
|
|
|
|
async goForward(options: WaitForOptions): Promise<HTTPResponse | null> {
|
|
return this._go(+1, options);
|
|
}
|
|
|
|
async _go(
|
|
delta: number,
|
|
options: WaitForOptions
|
|
): Promise<HTTPResponse | null> {
|
|
const history = await this._client.send('Page.getNavigationHistory');
|
|
const entry = history.entries[history.currentIndex + delta];
|
|
if (!entry) return null;
|
|
const result = await Promise.all<
|
|
HTTPResponse,
|
|
Protocol.Page.navigateToHistoryEntryReturnValue
|
|
>([
|
|
this.waitForNavigation(options),
|
|
this._client.send('Page.navigateToHistoryEntry', { entryId: entry.id }),
|
|
]);
|
|
return result[0];
|
|
}
|
|
|
|
async bringToFront(): Promise<void> {
|
|
await this._client.send('Page.bringToFront');
|
|
}
|
|
|
|
async emulate(options: {
|
|
viewport: Viewport;
|
|
userAgent: string;
|
|
}): Promise<void> {
|
|
await Promise.all([
|
|
this.setViewport(options.viewport),
|
|
this.setUserAgent(options.userAgent),
|
|
]);
|
|
}
|
|
|
|
async setJavaScriptEnabled(enabled: boolean): Promise<void> {
|
|
if (this._javascriptEnabled === enabled) return;
|
|
this._javascriptEnabled = enabled;
|
|
await this._client.send('Emulation.setScriptExecutionDisabled', {
|
|
value: !enabled,
|
|
});
|
|
}
|
|
|
|
async setBypassCSP(enabled: boolean): Promise<void> {
|
|
await this._client.send('Page.setBypassCSP', { enabled });
|
|
}
|
|
|
|
async emulateMediaType(type?: string): Promise<void> {
|
|
assert(
|
|
type === 'screen' || type === 'print' || type === null,
|
|
'Unsupported media type: ' + type
|
|
);
|
|
await this._client.send('Emulation.setEmulatedMedia', {
|
|
media: type || '',
|
|
});
|
|
}
|
|
|
|
async emulateMediaFeatures(features?: MediaFeature[]): Promise<void> {
|
|
if (features === null)
|
|
await this._client.send('Emulation.setEmulatedMedia', { features: null });
|
|
if (Array.isArray(features)) {
|
|
features.every((mediaFeature) => {
|
|
const name = mediaFeature.name;
|
|
assert(
|
|
/^prefers-(?:color-scheme|reduced-motion)$/.test(name),
|
|
'Unsupported media feature: ' + name
|
|
);
|
|
return true;
|
|
});
|
|
await this._client.send('Emulation.setEmulatedMedia', {
|
|
features: features,
|
|
});
|
|
}
|
|
}
|
|
|
|
async emulateTimezone(timezoneId?: string): Promise<void> {
|
|
try {
|
|
await this._client.send('Emulation.setTimezoneOverride', {
|
|
timezoneId: timezoneId || '',
|
|
});
|
|
} catch (error) {
|
|
if (error.message.includes('Invalid timezone'))
|
|
throw new Error(`Invalid timezone ID: ${timezoneId}`);
|
|
throw error;
|
|
}
|
|
}
|
|
|
|
async emulateVisionDeficiency(type?: VisionDeficiency): Promise<void> {
|
|
const visionDeficiencies = new Set(Object.keys(VisionDeficiency));
|
|
try {
|
|
assert(
|
|
!type || visionDeficiencies.has(type),
|
|
`Unsupported vision deficiency: ${type}`
|
|
);
|
|
await this._client.send('Emulation.setEmulatedVisionDeficiency', {
|
|
type: type || 'none',
|
|
});
|
|
} catch (error) {
|
|
throw error;
|
|
}
|
|
}
|
|
|
|
async setViewport(viewport: Viewport): Promise<void> {
|
|
const needsReload = await this._emulationManager.emulateViewport(viewport);
|
|
this._viewport = viewport;
|
|
if (needsReload) await this.reload();
|
|
}
|
|
|
|
viewport(): Viewport | null {
|
|
return this._viewport;
|
|
}
|
|
|
|
async evaluate<ReturnType extends any>(
|
|
pageFunction: Function | string,
|
|
...args: unknown[]
|
|
): Promise<ReturnType> {
|
|
return this._frameManager
|
|
.mainFrame()
|
|
.evaluate<ReturnType>(pageFunction, ...args);
|
|
}
|
|
|
|
async evaluateOnNewDocument(
|
|
pageFunction: Function | string,
|
|
...args: unknown[]
|
|
): Promise<void> {
|
|
const source = helper.evaluationString(pageFunction, ...args);
|
|
await this._client.send('Page.addScriptToEvaluateOnNewDocument', {
|
|
source,
|
|
});
|
|
}
|
|
|
|
async setCacheEnabled(enabled = true): Promise<void> {
|
|
await this._frameManager.networkManager().setCacheEnabled(enabled);
|
|
}
|
|
|
|
async screenshot(
|
|
options: ScreenshotOptions = {}
|
|
): Promise<Buffer | string | void> {
|
|
let screenshotType = null;
|
|
// options.type takes precedence over inferring the type from options.path
|
|
// because it may be a 0-length file with no extension created beforehand (i.e. as a temp file).
|
|
if (options.type) {
|
|
assert(
|
|
options.type === 'png' || options.type === 'jpeg',
|
|
'Unknown options.type value: ' + options.type
|
|
);
|
|
screenshotType = options.type;
|
|
} else if (options.path) {
|
|
const mimeType = mime.getType(options.path);
|
|
if (mimeType === 'image/png') screenshotType = 'png';
|
|
else if (mimeType === 'image/jpeg') screenshotType = 'jpeg';
|
|
assert(screenshotType, 'Unsupported screenshot mime type: ' + mimeType);
|
|
}
|
|
|
|
if (!screenshotType) screenshotType = 'png';
|
|
|
|
if (options.quality) {
|
|
assert(
|
|
screenshotType === 'jpeg',
|
|
'options.quality is unsupported for the ' +
|
|
screenshotType +
|
|
' screenshots'
|
|
);
|
|
assert(
|
|
typeof options.quality === 'number',
|
|
'Expected options.quality to be a number but found ' +
|
|
typeof options.quality
|
|
);
|
|
assert(
|
|
Number.isInteger(options.quality),
|
|
'Expected options.quality to be an integer'
|
|
);
|
|
assert(
|
|
options.quality >= 0 && options.quality <= 100,
|
|
'Expected options.quality to be between 0 and 100 (inclusive), got ' +
|
|
options.quality
|
|
);
|
|
}
|
|
assert(
|
|
!options.clip || !options.fullPage,
|
|
'options.clip and options.fullPage are exclusive'
|
|
);
|
|
if (options.clip) {
|
|
assert(
|
|
typeof options.clip.x === 'number',
|
|
'Expected options.clip.x to be a number but found ' +
|
|
typeof options.clip.x
|
|
);
|
|
assert(
|
|
typeof options.clip.y === 'number',
|
|
'Expected options.clip.y to be a number but found ' +
|
|
typeof options.clip.y
|
|
);
|
|
assert(
|
|
typeof options.clip.width === 'number',
|
|
'Expected options.clip.width to be a number but found ' +
|
|
typeof options.clip.width
|
|
);
|
|
assert(
|
|
typeof options.clip.height === 'number',
|
|
'Expected options.clip.height to be a number but found ' +
|
|
typeof options.clip.height
|
|
);
|
|
assert(
|
|
options.clip.width !== 0,
|
|
'Expected options.clip.width not to be 0.'
|
|
);
|
|
assert(
|
|
options.clip.height !== 0,
|
|
'Expected options.clip.height not to be 0.'
|
|
);
|
|
}
|
|
return this._screenshotTaskQueue.postTask(() =>
|
|
this._screenshotTask(screenshotType, options)
|
|
);
|
|
}
|
|
|
|
async _screenshotTask(
|
|
format: 'png' | 'jpeg',
|
|
options?: ScreenshotOptions
|
|
): Promise<Buffer | string> {
|
|
await this._client.send('Target.activateTarget', {
|
|
targetId: this._target._targetId,
|
|
});
|
|
let clip = options.clip ? processClip(options.clip) : undefined;
|
|
|
|
if (options.fullPage) {
|
|
const metrics = await this._client.send('Page.getLayoutMetrics');
|
|
const width = Math.ceil(metrics.contentSize.width);
|
|
const height = Math.ceil(metrics.contentSize.height);
|
|
|
|
// Overwrite clip for full page at all times.
|
|
clip = { x: 0, y: 0, width, height, scale: 1 };
|
|
const { isMobile = false, deviceScaleFactor = 1, isLandscape = false } =
|
|
this._viewport || {};
|
|
const screenOrientation: Protocol.Emulation.ScreenOrientation = isLandscape
|
|
? { angle: 90, type: 'landscapePrimary' }
|
|
: { angle: 0, type: 'portraitPrimary' };
|
|
await this._client.send('Emulation.setDeviceMetricsOverride', {
|
|
mobile: isMobile,
|
|
width,
|
|
height,
|
|
deviceScaleFactor,
|
|
screenOrientation,
|
|
});
|
|
}
|
|
const shouldSetDefaultBackground =
|
|
options.omitBackground && format === 'png';
|
|
if (shouldSetDefaultBackground)
|
|
await this._client.send('Emulation.setDefaultBackgroundColorOverride', {
|
|
color: { r: 0, g: 0, b: 0, a: 0 },
|
|
});
|
|
const result = await this._client.send('Page.captureScreenshot', {
|
|
format,
|
|
quality: options.quality,
|
|
clip,
|
|
});
|
|
if (shouldSetDefaultBackground)
|
|
await this._client.send('Emulation.setDefaultBackgroundColorOverride');
|
|
|
|
if (options.fullPage && this._viewport)
|
|
await this.setViewport(this._viewport);
|
|
|
|
const buffer =
|
|
options.encoding === 'base64'
|
|
? result.data
|
|
: Buffer.from(result.data, 'base64');
|
|
if (options.path) await writeFileAsync(options.path, buffer);
|
|
return buffer;
|
|
|
|
function processClip(
|
|
clip: ScreenshotClip
|
|
): ScreenshotClip & { scale: number } {
|
|
const x = Math.round(clip.x);
|
|
const y = Math.round(clip.y);
|
|
const width = Math.round(clip.width + clip.x - x);
|
|
const height = Math.round(clip.height + clip.y - y);
|
|
return { x, y, width, height, scale: 1 };
|
|
}
|
|
}
|
|
|
|
async pdf(options: PDFOptions = {}): Promise<Buffer> {
|
|
const {
|
|
scale = 1,
|
|
displayHeaderFooter = false,
|
|
headerTemplate = '',
|
|
footerTemplate = '',
|
|
printBackground = false,
|
|
landscape = false,
|
|
pageRanges = '',
|
|
preferCSSPageSize = false,
|
|
margin = {},
|
|
path = null,
|
|
} = options;
|
|
|
|
let paperWidth = 8.5;
|
|
let paperHeight = 11;
|
|
if (options.format) {
|
|
const format = paperFormats[options.format.toLowerCase()];
|
|
assert(format, 'Unknown paper format: ' + options.format);
|
|
paperWidth = format.width;
|
|
paperHeight = format.height;
|
|
} else {
|
|
paperWidth = convertPrintParameterToInches(options.width) || paperWidth;
|
|
paperHeight =
|
|
convertPrintParameterToInches(options.height) || paperHeight;
|
|
}
|
|
|
|
const marginTop = convertPrintParameterToInches(margin.top) || 0;
|
|
const marginLeft = convertPrintParameterToInches(margin.left) || 0;
|
|
const marginBottom = convertPrintParameterToInches(margin.bottom) || 0;
|
|
const marginRight = convertPrintParameterToInches(margin.right) || 0;
|
|
|
|
const result = await this._client.send('Page.printToPDF', {
|
|
transferMode: 'ReturnAsStream',
|
|
landscape,
|
|
displayHeaderFooter,
|
|
headerTemplate,
|
|
footerTemplate,
|
|
printBackground,
|
|
scale,
|
|
paperWidth,
|
|
paperHeight,
|
|
marginTop,
|
|
marginBottom,
|
|
marginLeft,
|
|
marginRight,
|
|
pageRanges,
|
|
preferCSSPageSize,
|
|
});
|
|
return await helper.readProtocolStream(this._client, result.stream, path);
|
|
}
|
|
|
|
async title(): Promise<string> {
|
|
return this.mainFrame().title();
|
|
}
|
|
|
|
async close(
|
|
options: { runBeforeUnload?: boolean } = { runBeforeUnload: undefined }
|
|
): Promise<void> {
|
|
assert(
|
|
!!this._client._connection,
|
|
'Protocol error: Connection closed. Most likely the page has been closed.'
|
|
);
|
|
const runBeforeUnload = !!options.runBeforeUnload;
|
|
if (runBeforeUnload) {
|
|
await this._client.send('Page.close');
|
|
} else {
|
|
await this._client._connection.send('Target.closeTarget', {
|
|
targetId: this._target._targetId,
|
|
});
|
|
await this._target._isClosedPromise;
|
|
}
|
|
}
|
|
|
|
isClosed(): boolean {
|
|
return this._closed;
|
|
}
|
|
|
|
get mouse(): Mouse {
|
|
return this._mouse;
|
|
}
|
|
|
|
click(
|
|
selector: string,
|
|
options: {
|
|
delay?: number;
|
|
button?: MouseButtonInput;
|
|
clickCount?: number;
|
|
} = {}
|
|
): Promise<void> {
|
|
return this.mainFrame().click(selector, options);
|
|
}
|
|
|
|
focus(selector: string): Promise<void> {
|
|
return this.mainFrame().focus(selector);
|
|
}
|
|
|
|
hover(selector: string): Promise<void> {
|
|
return this.mainFrame().hover(selector);
|
|
}
|
|
|
|
select(selector: string, ...values: string[]): Promise<string[]> {
|
|
return this.mainFrame().select(selector, ...values);
|
|
}
|
|
|
|
tap(selector: string): Promise<void> {
|
|
return this.mainFrame().tap(selector);
|
|
}
|
|
|
|
type(
|
|
selector: string,
|
|
text: string,
|
|
options?: { delay: number }
|
|
): Promise<void> {
|
|
return this.mainFrame().type(selector, text, options);
|
|
}
|
|
|
|
waitFor(
|
|
selectorOrFunctionOrTimeout: string | number | Function,
|
|
options: {
|
|
visible?: boolean;
|
|
hidden?: boolean;
|
|
timeout?: number;
|
|
polling?: string | number;
|
|
} = {},
|
|
...args: unknown[]
|
|
): Promise<JSHandle> {
|
|
return this.mainFrame().waitFor(
|
|
selectorOrFunctionOrTimeout,
|
|
options,
|
|
...args
|
|
);
|
|
}
|
|
|
|
waitForSelector(
|
|
selector: string,
|
|
options: {
|
|
visible?: boolean;
|
|
hidden?: boolean;
|
|
timeout?: number;
|
|
} = {}
|
|
): Promise<ElementHandle | null> {
|
|
return this.mainFrame().waitForSelector(selector, options);
|
|
}
|
|
|
|
waitForXPath(
|
|
xpath: string,
|
|
options: {
|
|
visible?: boolean;
|
|
hidden?: boolean;
|
|
timeout?: number;
|
|
} = {}
|
|
): Promise<ElementHandle | null> {
|
|
return this.mainFrame().waitForXPath(xpath, options);
|
|
}
|
|
|
|
waitForFunction(
|
|
pageFunction: Function,
|
|
options: {
|
|
timeout?: number;
|
|
polling?: string | number;
|
|
} = {},
|
|
...args: unknown[]
|
|
): Promise<JSHandle> {
|
|
return this.mainFrame().waitForFunction(pageFunction, options, ...args);
|
|
}
|
|
}
|
|
|
|
const supportedMetrics = new Set<string>([
|
|
'Timestamp',
|
|
'Documents',
|
|
'Frames',
|
|
'JSEventListeners',
|
|
'Nodes',
|
|
'LayoutCount',
|
|
'RecalcStyleCount',
|
|
'LayoutDuration',
|
|
'RecalcStyleDuration',
|
|
'ScriptDuration',
|
|
'TaskDuration',
|
|
'JSHeapUsedSize',
|
|
'JSHeapTotalSize',
|
|
]);
|
|
|
|
const unitToPixels = {
|
|
px: 1,
|
|
in: 96,
|
|
cm: 37.8,
|
|
mm: 3.78,
|
|
};
|
|
|
|
function convertPrintParameterToInches(
|
|
parameter?: string | number
|
|
): number | undefined {
|
|
if (typeof parameter === 'undefined') return undefined;
|
|
let pixels;
|
|
if (helper.isNumber(parameter)) {
|
|
// Treat numbers as pixel values to be aligned with phantom's paperSize.
|
|
pixels = /** @type {number} */ parameter;
|
|
} else if (helper.isString(parameter)) {
|
|
const text = /** @type {string} */ parameter;
|
|
let unit = text.substring(text.length - 2).toLowerCase();
|
|
let valueText = '';
|
|
if (unitToPixels.hasOwnProperty(unit)) {
|
|
valueText = text.substring(0, text.length - 2);
|
|
} else {
|
|
// In case of unknown unit try to parse the whole parameter as number of pixels.
|
|
// This is consistent with phantom's paperSize behavior.
|
|
unit = 'px';
|
|
valueText = text;
|
|
}
|
|
const value = Number(valueText);
|
|
assert(!isNaN(value), 'Failed to parse parameter value: ' + text);
|
|
pixels = value * unitToPixels[unit];
|
|
} else {
|
|
throw new Error(
|
|
'page.pdf() Cannot handle parameter type: ' + typeof parameter
|
|
);
|
|
}
|
|
return pixels / 96;
|
|
}
|