detect-sniff.js (1449B)
1 /** 2 * Copyright 2017 Google Inc., PhantomJS Authors All rights reserved. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 'use strict'; 18 19 const puppeteer = require('puppeteer'); 20 21 function sniffDetector() { 22 const userAgent = window.navigator.userAgent; 23 const platform = window.navigator.platform; 24 25 window.navigator.__defineGetter__('userAgent', function () { 26 window.navigator.sniffed = true; 27 return userAgent; 28 }); 29 30 window.navigator.__defineGetter__('platform', function () { 31 window.navigator.sniffed = true; 32 return platform; 33 }); 34 } 35 36 (async () => { 37 const browser = await puppeteer.launch(); 38 const page = await browser.newPage(); 39 await page.evaluateOnNewDocument(sniffDetector); 40 await page.goto('https://www.google.com', {waitUntil: 'networkidle2'}); 41 console.log( 42 'Sniffed: ' + 43 (await page.evaluate(() => { 44 return !!navigator.sniffed; 45 })), 46 ); 47 48 await browser.close(); 49 })();