fingerprint-shield/dev-vsnative.html at main · N0deZ3r0/fingerprint-shield · GitHub

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<!DOCTYPE html>
<html><head><meta charset="utf-8"><title>patched vs pristine native</title></head>
<body><pre id="out">running…</pre>
<script>
sessionStorage.setItem('v.ui.s', JSON.stringify({
  mode:'normal', screenWidth:2560, screenHeight:1440, colorDepth:32, devicePixelRatio:1,
  platform:'Win32', hwConcurrency:12, deviceMemory:32, vendor:'Google Inc.',
  language:'et-EE', locale:'et-EE', countryCode:'EE', languages:['et-EE','et','en','en-US'],
  timezone:'Europe/Tallinn', noiseSeed:305419896, maxTouchPoints:0, pdfViewerEnabled:true,
  userAgent:navigator.userAgent.replace(/Chrome\/[\d.]+/,'Chrome/151.0.0.0'),
  appVersion:'5.0 (Windows NT 10.0; Win64; x64)',
  webglVendor:'Google Inc. (NVIDIA)', webglRenderer:'ANGLE (NVIDIA, RTX 3060)', webglParams:{},
  clientHints:{platform:'Windows',mobile:false,platformVersion:'10.0.0',architecture:'x86',bitness:'64',wow64:false,model:'',formFactors:['Desktop']},
  allowedFonts:['Arial','Segoe UI','Tahoma'], mediaDevices:[], plugins:[], mimeTypes:[],
  speechVoices:[{name:'Microsoft Kaia - Estonian',lang:'et-EE',localService:true,default:true}],
  features:{canvas:true,audio:true,webgl:true,webrtc:true,navigator:true,screen:true,timezone:true,
    geolocation:true,battery:true,fonts:true,clientRects:true,plugins:true,network:true,hideAdBlocker:true}
}));
sessionStorage.setItem('v.ui.m','normal');

const L=[]; const t=(n,p,d)=>L.push((p?'PASS  ':'FAIL  ')+n+(d?'  ::  '+d:''));
const ORDER=['profile-injector.js','mw/mw-bag.js','mw/mw-core.js','mw/mw-timezone-screen.js',
 'mw/mw-navigator.js','mw/mw-canvas-audio.js','mw/mw-misc.js','mw/mw-workers.js','mw/mw-geo.js','mw/mw-adblock.js'];
const load=(s)=>new Promise(r=>{const e=document.createElement('script');e.src=s+'?x='+Date.now();
  e.onload=()=>r(1);e.onerror=()=>r(0);document.head.appendChild(e);});

// pristine reference: an about:blank iframe created BEFORE the modules load,
// whose realm we snapshot immediately — nothing of ours has run in it.
const ifr=document.createElement('iframe'); ifr.style.display='none';
document.body.appendChild(ifr);
const W0=ifr.contentWindow;

function sigIn(win, path, prop, kind){
  try{
    let holder=win, parts=path?path.split('.'):[];
    for(const p of parts){ holder=holder[p]; if(!holder) return null; }
    if(kind==='getter'){
      let o=holder,d=null;
      while(o&&!d){ d=Object.getOwnPropertyDescriptor(o,prop); if(!d) o=Object.getPrototypeOf(o); }
      if(!d||!d.get) return null;
      return {name:d.get.name, length:d.get.length, str:String(d.get)};
    }
    const f=holder[prop];
    if(typeof f!=='function') return null;
    return {name:f.name, length:f.length, str:String(f)};
  }catch(e){ return null; }
}

// Everything we patch that also exists natively — compared shape-for-shape.
const CASES=[
  // accessors on prototypes
  ['Navigator.prototype','deviceMemory','getter'],
  ['Navigator.prototype','hardwareConcurrency','getter'],
  ['Navigator.prototype','languages','getter'],
  ['Navigator.prototype','language','getter'],
  ['Navigator.prototype','userAgentData','getter'],
  ['Screen.prototype','width','getter'],
  ['Screen.prototype','height','getter'],
  ['Screen.prototype','availWidth','getter'],
  ['Screen.prototype','colorDepth','getter'],
  ['TextMetrics.prototype','width','getter'],
  ['TextMetrics.prototype','actualBoundingBoxAscent','getter'],
  ['NetworkInformation.prototype','downlink','getter'],
  ['NetworkInformation.prototype','effectiveType','getter'],
  ['NetworkInformation.prototype','rtt','getter'],
  ['NetworkInformation.prototype','onchange','getter'],
  ['Error.prototype','stack','getter'],
  ['MimeType.prototype','enabledPlugin','getter'],
  ['FontFaceSet.prototype','size','getter'],
  ['OfflineAudioContext.prototype','oncomplete','getter'],
  ['Intl.Locale.prototype','timeZone','getter'],
  ['','innerWidth','getter'], ['','innerHeight','getter'],
  ['','outerWidth','getter'], ['','outerHeight','getter'],
  ['','devicePixelRatio','getter'],
  ['VisualViewport.prototype','width','getter'],
  ['VisualViewport.prototype','height','getter'],
  ['Element.prototype','clientWidth','getter'],
  ['Element.prototype','clientHeight','getter'],
  // methods
  ['Date.prototype','getTimezoneOffset','method'],
  ['Date.prototype','toString','method'],
  ['Date.prototype','toLocaleString','method'],
  ['Date.prototype','toLocaleDateString','method'],
  ['Date.prototype','toLocaleTimeString','method'],
  ['Date.prototype','getHours','method'],
  ['Date.prototype','setHours','method'],
  ['Number.prototype','toLocaleString','method'],
  ['Intl.DateTimeFormat.prototype','resolvedOptions','method'],
  ['Intl.DateTimeFormat.prototype','formatToParts','method'],
  ['Intl.NumberFormat.prototype','resolvedOptions','method'],
  ['CanvasRenderingContext2D.prototype','getImageData','method'],
  ['CanvasRenderingContext2D.prototype','measureText','method'],
  ['CanvasRenderingContext2D.prototype','fillText','method'],
  ['CanvasRenderingContext2D.prototype','strokeText','method'],
  ['HTMLCanvasElement.prototype','toDataURL','method'],
  ['HTMLCanvasElement.prototype','toBlob','method'],
  ['HTMLCanvasElement.prototype','getContext','method'],
  ['OffscreenCanvas.prototype','getContext','method'],
  ['OffscreenCanvas.prototype','convertToBlob','method'],
  ['OffscreenCanvasRenderingContext2D.prototype','getImageData','method'],
  ['OffscreenCanvasRenderingContext2D.prototype','measureText','method'],
  ['Element.prototype','getBoundingClientRect','method'],
  ['Range.prototype','getBoundingClientRect','method'],
  ['WebGLRenderingContext.prototype','getParameter','method'],
  ['WebGL2RenderingContext.prototype','getParameter','method'],
  ['AnalyserNode.prototype','getFloatFrequencyData','method'],
  ['AnalyserNode.prototype','getByteFrequencyData','method'],
  ['SpeechSynthesis.prototype','getVoices','method'],
  ['Performance.prototype','now','method'],
  ['','matchMedia','method'],
  ['Permissions.prototype','query','method'],
  ['MediaDevices.prototype','enumerateDevices','method'],
  ['Geolocation.prototype','getCurrentPosition','method'],
  ['Geolocation.prototype','watchPosition','method'],
  ['Geolocation.prototype','clearWatch','method'],
  ['Navigator.prototype','getBattery','method'],
  ['ServiceWorkerContainer.prototype','register','method'],
  ['NavigatorUAData.prototype','getHighEntropyValues','method'],
  ['NavigatorUAData.prototype','brands','getter'],
  ['RTCPeerConnection.prototype','addEventListener','method'],
  ['FontFaceSet.prototype','check','method'],
  ['FontFaceSet.prototype','load','method'],
  // constructors
  ['','Date','method'],
  ['Intl','DateTimeFormat','method'],
  ['Intl','NumberFormat','method'],
  ['Intl','Collator','method'],
  ['Intl','PluralRules','method'],
  ['Intl','RelativeTimeFormat','method'],
  ['Intl','Locale','method']
];

(async()=>{
  // snapshot pristine natives from the untouched iframe realm first
  const ref={};
  for(const [path,prop,kind] of CASES){
    ref[path+'.'+prop] = sigIn(W0, path, prop, kind);
  }
  for(const f of ORDER) await load(f);

  let patched=0, mismatched=0, skipped=0;
  for(const [path,prop,kind] of CASES){
    const key=path+'.'+prop;
    const n=ref[key], o=sigIn(window, path, prop, kind);
    if(!n||!o){ skipped++; continue; }
    const same = n.name===o.name && n.length===o.length && n.str===o.str;
    const isOurs = o.str!==n.str || o.name!==n.name || o.length!==n.length;
    if(!same){
      mismatched++;
      L.push('FAIL  '+key);
      if(n.name!==o.name)   L.push('        name:   native "'+n.name+'"   ours "'+o.name+'"');
      if(n.length!==o.length)L.push('        length: native '+n.length+'   ours '+o.length);
      if(n.str!==o.str)     L.push('        str:    native '+n.str+'\n                ours   '+o.str);
    } else patched++;
  }
  L.unshift('compared '+(patched+mismatched)+' APIs against a pristine iframe realm  ('+skipped+' unavailable)');
  L.unshift('');
  L.unshift(mismatched===0
    ? 'PASS  every patched API is shape-identical to its pristine native (name|length|toString)'
    : 'FAIL  '+mismatched+' APIs differ from pristine native:');
  document.getElementById('out').textContent=L.join('\n');
})();
</script>
</body></html>