remote/test/puppeteer/examples/detect-sniff.js

   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 })();