Advanced measures to reduce browser fingerprinting
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// ==UserScript==
// @name Advanced Anti-Fingerprinting Script
// @namespace http://tampermonkey.net/
// @version 0.3
// @author saiHy
// @description Advanced measures to reduce browser fingerprinting
// @match *://*/*
// @grant none
// @license MIT
// @run-at document-start
// ==/UserScript==
(function() {
'use strict';
// 扩展 Canvas 防护
function advancedCanvasProtection() {
const originalGetContext = HTMLCanvasElement.prototype.getContext;
HTMLCanvasElement.prototype.getContext = function(type, contextAttributes) {
const ctx = originalGetContext.call(this, type, contextAttributes);
if (ctx) {
const randomOffset = Math.random() * 100;
const randomFactor = Math.random();
['save', 'restore', 'fillRect', 'strokeRect', 'clearRect', 'fill', 'stroke', 'fillText', 'strokeText'].forEach(method => {
const originalMethod = ctx[method];
ctx[method] = function(...args) {
if (method.includes('Text')) {
args[1] += randomOffset; // 改变文本位置
args[2] += randomOffset;
} else if (method.includes('Rect')) {
args[1] += randomOffset * randomFactor; // 改变矩形位置
args[2] += randomOffset * randomFactor;
args[3] *= randomFactor; // 改变大小
args[4] *= randomFactor;
}
return originalMethod.apply(this, args);
};
});
}
return ctx;
};
}
// 增强 WebGL 防护
function advancedWebGLProtection() {
try {
const originalGetParameter = WebGLRenderingContext.prototype.getParameter;
WebGLRenderingContext.prototype.getParameter = function(param) {
// 提供通用或随机化的信息
switch(param) {
case 0x9245: // WebGL_VERSION
return 'WebGL 1.0';
case 0x8B31: // RENDERER
return 'Generic GPU';
case 0x8B30: // VENDOR
return 'Anonymous Vendor';
case 0x9242: // SHADING_LANGUAGE_VERSION
return 'WebGL GLSL ES 1.0';
case 0x9246: // UNMASKED_VENDOR_WEBGL
case 0x9247: // UNMASKED_RENDERER_WEBGL
return 'Anonymous';
default:
return originalGetParameter.call(this, param);
}
};
// 屏蔽更多 WebGL 扩展
const originalGetExtension = WebGLRenderingContext.prototype.getExtension;
WebGLRenderingContext.prototype.getExtension = function(name) {
if (['WEBGL_debug_renderer_info', 'WEBGL_compressed_texture_s3tc', 'WEBGL_depth_texture'].includes(name)) return null;
return originalGetExtension.call(this, name);
};
} catch (e) {} // 如果不支持 WebGL 则忽略错误
}
// 进一步混淆浏览器信息
function furtherObscureBrowserInfo() {
// 语言信息
Object.defineProperty(navigator, 'language', { get: () => 'en-US' });
Object.defineProperty(navigator, 'languages', { get: () => ['en-US', 'en'] });
// 时区
const offset = -new Date().getTimezoneOffset() / 60;
Object.defineProperty(Intl, 'DateTimeFormat', {
value: function() {
return {
resolvedOptions: () => ({
timeZone: 'UTC'
})
};
}
});
// 插件信息
Object.defineProperty(navigator, 'plugins', { get: () => [{ name: 'Generic Plugin', description: 'Generic Plugin' }] });
// 字体
const originalMeasureText = CanvasRenderingContext2D.prototype.measureText;
CanvasRenderingContext2D.prototype.measureText = function() {
const result = originalMeasureText.apply(this, arguments);
result.width = 100 * Math.random(); // 随机化文本宽度
return result;
};
// 屏幕尺寸
const screenWidth = window.screen.width;
const screenHeight = window.screen.height;
Object.defineProperty(window.screen, 'width', { get: () => Math.floor(screenWidth / 100) * 100 });
Object.defineProperty(window.screen, 'height', { get: () => Math.floor(screenHeight / 100) * 100 });
// 硬件并发数
Object.defineProperty(navigator, 'hardwareConcurrency', { get: () => 4 }); // 假设所有人都有4核
// 浏览器特性
Object.defineProperty(navigator, 'platform', { get: () => 'Win32' });
Object.defineProperty(navigator, 'appVersion', { get: () => '5.0 (Windows)' });
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' });
}
// 执行所有防护措施
advancedCanvasProtection();
advancedWebGLProtection();
furtherObscureBrowserInfo();
})();