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Advanced Anti-Fingerprinting Script

Advanced measures to reduce browser fingerprinting

  1. // ==UserScript==
  2. // @name         Advanced Anti-Fingerprinting Script
  3. // @namespace    http://tampermonkey.net/
  4. // @version      0.3
  5. // @author       saiHy
  6. // @description  Advanced measures to reduce browser fingerprinting
  7. // @match        *://*/*
  8. // @grant        none
  9. // @license     MIT
  10. // @run-at       document-start
  11. // ==/UserScript==
  12.  
  13. (function() {
  14.     'use strict';
  15.  
  16.     // 扩展 Canvas 防护
  17.     function advancedCanvasProtection() {
  18.         const originalGetContext = HTMLCanvasElement.prototype.getContext;
  19.         HTMLCanvasElement.prototype.getContext = function(type, contextAttributes) {
  20.             const ctx = originalGetContext.call(this, type, contextAttributes);
  21.             if (ctx) {
  22.                 const randomOffset = Math.random() * 100;
  23.                 const randomFactor = Math.random();
  24.                 ['save', 'restore', 'fillRect', 'strokeRect', 'clearRect', 'fill', 'stroke', 'fillText', 'strokeText'].forEach(method => {
  25.                     const originalMethod = ctx[method];
  26.                     ctx[method] = function(...args) {
  27.                         if (method.includes('Text')) {
  28.                             args[1] += randomOffset; // 改变文本位置
  29.                             args[2] += randomOffset;
  30.                         } else if (method.includes('Rect')) {
  31.                             args[1] += randomOffset * randomFactor; // 改变矩形位置
  32.                             args[2] += randomOffset * randomFactor;
  33.                             args[3] *= randomFactor; // 改变大小
  34.                             args[4] *= randomFactor;
  35.                         }
  36.                         return originalMethod.apply(this, args);
  37.                     };
  38.                 });
  39.             }
  40.             return ctx;
  41.         };
  42.     }
  43.  
  44.     // 增强 WebGL 防护
  45.     function advancedWebGLProtection() {
  46.         try {
  47.             const originalGetParameter = WebGLRenderingContext.prototype.getParameter;
  48.             WebGLRenderingContext.prototype.getParameter = function(param) {
  49.                 // 提供通用或随机化的信息
  50.                 switch(param) {
  51.                     case 0x9245: // WebGL_VERSION
  52.                         return 'WebGL 1.0';
  53.                     case 0x8B31: // RENDERER
  54.                         return 'Generic GPU';
  55.                     case 0x8B30: // VENDOR
  56.                         return 'Anonymous Vendor';
  57.                     case 0x9242: // SHADING_LANGUAGE_VERSION
  58.                         return 'WebGL GLSL ES 1.0';
  59.                     case 0x9246: // UNMASKED_VENDOR_WEBGL
  60.                     case 0x9247: // UNMASKED_RENDERER_WEBGL
  61.                         return 'Anonymous';
  62.                     default:
  63.                         return originalGetParameter.call(this, param);
  64.                 }
  65.             };
  66.  
  67.             // 屏蔽更多 WebGL 扩展
  68.             const originalGetExtension = WebGLRenderingContext.prototype.getExtension;
  69.             WebGLRenderingContext.prototype.getExtension = function(name) {
  70.                 if (['WEBGL_debug_renderer_info', 'WEBGL_compressed_texture_s3tc', 'WEBGL_depth_texture'].includes(name)) return null;
  71.                 return originalGetExtension.call(this, name);
  72.             };
  73.         } catch (e) {} // 如果不支持 WebGL 则忽略错误
  74.     }
  75.  
  76.     // 进一步混淆浏览器信息
  77.     function furtherObscureBrowserInfo() {
  78.         // 语言信息
  79.         Object.defineProperty(navigator, 'language', { get: () => 'en-US' });
  80.         Object.defineProperty(navigator, 'languages', { get: () => ['en-US', 'en'] });
  81.  
  82.         // 时区
  83.         const offset = -new Date().getTimezoneOffset() / 60;
  84.         Object.defineProperty(Intl, 'DateTimeFormat', {
  85.             value: function() {
  86.                 return {
  87.                     resolvedOptions: () => ({
  88.                         timeZone: 'UTC'
  89.                     })
  90.                 };
  91.             }
  92.         });
  93.  
  94.         // 插件信息
  95.         Object.defineProperty(navigator, 'plugins', { get: () => [{ name: 'Generic Plugin', description: 'Generic Plugin' }] });
  96.  
  97.         // 字体
  98.         const originalMeasureText = CanvasRenderingContext2D.prototype.measureText;
  99.         CanvasRenderingContext2D.prototype.measureText = function() {
  100.             const result = originalMeasureText.apply(this, arguments);
  101.             result.width = 100 * Math.random(); // 随机化文本宽度
  102.             return result;
  103.         };
  104.  
  105.         // 屏幕尺寸
  106.         const screenWidth = window.screen.width;
  107.         const screenHeight = window.screen.height;
  108.         Object.defineProperty(window.screen, 'width', { get: () => Math.floor(screenWidth / 100) * 100 });
  109.         Object.defineProperty(window.screen, 'height', { get: () => Math.floor(screenHeight / 100) * 100 });
  110.  
  111.         // 硬件并发数
  112.         Object.defineProperty(navigator, 'hardwareConcurrency', { get: () => 4 }); // 假设所有人都有4核
  113.  
  114.         // 浏览器特性
  115.         Object.defineProperty(navigator, 'platform', { get: () => 'Win32' });
  116.         Object.defineProperty(navigator, 'appVersion', { get: () => '5.0 (Windows)' });
  117.         Object.defineProperty(navigator, 'userAgent', { get: () => 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.150 Safari/537.36' });
  118.     }
  119.  
  120.     // 执行所有防护措施
  121.     advancedCanvasProtection();
  122.     advancedWebGLProtection();
  123.     furtherObscureBrowserInfo();
  124.  
  125. })();