detect headless

gistfile1.txt

//detect
// v:3
function detect() {
try {
if (!(window.navigator.userAgent.search(/Chrome\//) > 0 && window.navigator.userAgent.search(/OPR|YaBrowser|Konqueror|Edge/) < 0)) {return 'notchrome'};
 var results = {};
 function test(name, fn) {
    results[name] = fn();
// 	console.log(results);
//     console.log(results[name] + '\t' + name);
//     document.body.innerHTML+=`<div>${detectionPassed} = ${name}</div>`;
//     if (detectionPassed) {document.body.innerHTML+=`<div style=color:red>detected via ${name}</div>`;}
  }

  test('ua', function(){
    return /HeadlessChrome/.test(window.navigator.userAgent);
  });

  test('dr', function(){
    return navigator.webdriver;
  });

  test('ch', function(){
    return /Chrome\//.test(window.navigator.userAgent) && navigator.userAgent.search(/OPR|YaBrowser|Konqueror|Edge/) < 0 && !window.chrome;
  });

  test('p', function(){
    const permissionStatus = navigator.permissions.query({name: 'notifications'});
    return Notification.permission === 'denied' && permissionStatus.state === 'prompt';
  });

  test('po', function(){
	if (!window.navigator.permissions) {return false;}
    if (window.navigator.permissions.query.toString().replace(/\s/g,'') !== 'functionquery(){[nativecode]}') return true;
    if (window.navigator.permissions.query.toString.toString().replace(/\s/g,'') !== 'functiontoString(){[nativecode]}') return true;
    if (
      window.navigator.permissions.query.toString.hasOwnProperty('[[Handler]]') &&
      window.navigator.permissions.query.toString.hasOwnProperty('[[Target]]') &&
      window.navigator.permissions.query.toString.hasOwnProperty('[[IsRevoked]]')
    ) return true;
    if (window.navigator.permissions.hasOwnProperty('query')) return true;
  });

//   test('navigator.plugins empty', function(){
//     return navigator.plugins.length === 0;
//   });

  test('la', function(){
    return navigator.languages === '';
  });

//   test('iFrame for fresh window object', function(){
//     // evaluateOnNewDocument scripts don't apply within [srcdoc] (or [sandbox]) iframes
//     // https://github.com/GoogleChrome/puppeteer/issues/1106#issuecomment-359313898
//     const iframe = document.createElement('iframe');
//     iframe.srcdoc = 'page intentionally left blank';
//     document.body.appendChild(iframe);
//
//     // Here we would need to rerun all tests with `iframe.contentWindow` as `window`
//     // Example:
//     return iframe.contentWindow.navigator.plugins.length === 0
//   });

//   // This detects that a devtools protocol agent is attached.
//   // So it will also pass true in headful Chrome if the devtools window is attached
//   test('toString', function(){
//     let gotYou = 0;
//     const spooky = /./;
//     spooky.toString = function() {
//       gotYou++;
//       return 'spooky';
//     }
//     console.debug(spooky);
//     return gotYou > 1;
//   });

for (var key in results) {
	if (results[key]===true) {return 'true:'+key;}
}
return false;

} catch(e) {return 'detecterr';}
};