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拦截 devtools-detector.js 脚本，禁用页面检测 DevTools 的功能。
当前为
// ==UserScript==
// @name 屏蔽 DevTools 检测
// @namespace https://github.com/LFWQSP2641/
// @version 1.1
// @description 拦截 devtools-detector.js 脚本，禁用页面检测 DevTools 的功能。
// @author LFWQSP2641
// @match *://*.chaoxing.com/*
// @run-at document-start
// ==/UserScript==
(function () {
'use strict';
// 1. 拦截 devtools-detector.js
if (true) {
const observer = new MutationObserver(() => {
document.querySelectorAll('script[src*="devtools-detector.js"]').forEach(el => {
console.log("Tampermonkey: 拦截 devtools-detector.js");
el.remove();
});
});
observer.observe(document.documentElement, { childList: true, subtree: true });
}
// 2. 覆盖 devtoolsDetector 对象
if (false) {
const script = document.createElement('script');
script.textContent = `
// 在全局作用域定义一个假的 devtoolsDetector 对象
window.devtoolsDetector = {
// 主要方法的模拟实现
isLaunch: () => false,
launch: () => {},
stop: () => {},
isOpen: false,
addListener: () => {},
removeListener: () => {},
setDetectDelay: () => {},
// 模拟检测器返回假结果
_broadcast: () => {},
_detectLoop: () => {},
_isOpen: false,
_detectLoopStopped: true
};
// 防止原始对象被重新定义
Object.defineProperty(window, 'devtoolsDetector', {
writable: false,
configurable: false
});
`;
// 将脚本注入页面
document.documentElement.appendChild(script);
document.documentElement.removeChild(script);
}
// 4. 多层防御，拦截关键的对象和方法。
if (false) {
// 在页面加载最开始就注入我们的代码
const script = document.createElement('script');
script.textContent = `
// 1. 首先，保存原始的属性描述符方法，防止它们被篡改
const originalDefineProperty = Object.defineProperty;
const originalGetOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
// 2. 创建一个假的 devtoolsDetector 对象
const fakeDetector = {
isLaunch: () => false,
launch: () => {},
stop: () => {},
addListener: () => {},
removeListener: () => {},
setDetectDelay: () => {},
_detectLoop: () => {},
_broadcast: () => {},
_detectLoopStopped: true,
isOpen: false,
_isOpen: false
};
// 3. 拦截全局 window 的 devtoolsDetector 属性设置
originalDefineProperty(window, 'devtoolsDetector', {
configurable: true,
get: function() {
return fakeDetector;
},
set: function() {
// 忽略所有设置尝试
console.log("拦截到 devtoolsDetector 设置尝试");
return fakeDetector;
}
});
// 4. 劫持函数构造器，防止检测脚本通过 Function 创建检测函数
const originalFunction = Function;
window.Function = function() {
const fnBody = arguments[arguments.length - 1];
if (typeof fnBody === 'string') {
// 检查函数体中是否包含特定关键词
if (fnBody.includes('debugger') ||
fnBody.includes('toString') && (fnBody.includes('isOpen') || fnBody.includes('devtools'))) {
// 返回一个无害的函数
return function() { return false; };
}
}
// 否则使用原始构造函数
return originalFunction.apply(this, arguments);
};
// 5. 阻止定时器检测
const originalSetTimeout = window.setTimeout;
window.setTimeout = function(fn, delay) {
if (typeof fn === 'function' && delay >= 100 && delay <= 1000) {
const fnStr = fn.toString();
if (fnStr.includes('devtools') || fnStr.includes('debugger') || fnStr.includes('_detectLoop')) {
// 替换为无操作的函数
fn = function() {};
}
}
return originalSetTimeout.apply(this, arguments);
};
// 6. 劫持 console.* 方法，因为一些检测器会利用这些方法
if (window.console) {
const originalLog = console.log;
const originalTable = console.table;
const originalClear = console.clear;
console.log = function() {
// 过滤掉与检测相关的调用
const stackTrace = new Error().stack || '';
if (stackTrace.includes('devtools') || stackTrace.includes('detector')) {
return;
}
return originalLog.apply(this, arguments);
};
console.table = function() {
const stackTrace = new Error().stack || '';
if (stackTrace.includes('devtools') || stackTrace.includes('detector')) {
return;
}
return originalTable.apply(this, arguments);
};
console.clear = function() {
const stackTrace = new Error().stack || '';
if (stackTrace.includes('devtools') || stackTrace.includes('detector')) {
return;
}
return originalClear.apply(this, arguments);
};
}
console.log('🛡️ DevTools 保护已激活');
`;
// 尽早添加到页面
document.documentElement.appendChild(script);
document.documentElement.removeChild(script);
// 添加DOM过滤器，移除加载的检测脚本
const observer = new MutationObserver((mutations) => {
for (const mutation of mutations) {
for (const node of mutation.addedNodes) {
if (node.tagName === 'SCRIPT' &&
(node.src && (node.src.includes('devtools-detector') ||
node.src.includes('devtoolsDetector')))) {
console.log("已拦截检测脚本的加载");
node.remove();
}
}
}
});
observer.observe(document, { childList: true, subtree: true });
}
// 4.5. 4 的 ai 优化版本
if (true) {
// 在页面加载最开始就注入我们的代码
const script = document.createElement('script');
script.textContent = `
// 保存原始方法，避免它们被篡改
const originalDefineProperty = Object.defineProperty;
const originalGetOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
// 创建不可变的假 devtoolsDetector 对象
const fakeDetector = Object.freeze({
isLaunch: () => false,
launch: () => {},
stop: () => {},
addListener: () => {},
removeListener: () => {},
setDetectDelay: () => {},
_detectLoop: () => {},
_broadcast: () => {},
_detectLoopStopped: true,
isOpen: false,
_isOpen: false
});
// 拦截全局 window 的 devtoolsDetector 属性设置
originalDefineProperty(window, 'devtoolsDetector', {
configurable: false, // 防止属性被重新配置
enumerable: true,
get: function() {
return fakeDetector;
},
set: function() {
// 忽略所有设置尝试，静默失败
return fakeDetector;
}
});
// 劫持函数构造器，防止通过 Function 创建检测函数
const originalFunction = Function;
window.Function = function() {
const fnBody = arguments[arguments.length - 1];
if (typeof fnBody === 'string') {
// 检查函数体中是否包含特定关键词
if (fnBody.includes('debugger') ||
(fnBody.includes('toString') && (fnBody.includes('isOpen') || fnBody.includes('devtools')))) {
return function() { return false; };
}
}
return originalFunction.apply(this, arguments);
};
// 保持原始函数的原型链
window.Function.prototype = originalFunction.prototype;
// 阻止定时器检测
const originalSetTimeout = window.setTimeout;
window.setTimeout = function(fn, delay) {
// 只拦截可能的检测函数
if (typeof fn === 'function' && delay >= 100 && delay <= 1000) {
try {
const fnStr = fn.toString();
if (fnStr.includes('devtools') || fnStr.includes('debugger') || fnStr.includes('_detectLoop')) {
fn = function() {};
}
} catch (e) {
// 防止异常中断脚本执行
}
}
return originalSetTimeout.apply(this, arguments);
};
// 劫持 console 方法，减少检测可能性
if (window.console) {
const methods = ['log', 'table', 'clear', 'trace', 'debug'];
methods.forEach(method => {
if (typeof console[method] === 'function') {
const original = console[method];
console[method] = function() {
// 检测调用栈是否与检测相关
try {
const stackTrace = new Error().stack || '';
if (stackTrace.includes('devtools') || stackTrace.includes('detector')) {
return;
}
} catch (e) {
// 防止异常破坏页面功能
}
return original.apply(this, arguments);
};
}
});
}
// 记录激活状态，但避免明显特征
const ts = Date.now();
sessionStorage.setItem('_sys' + ts, '1');
`;
// 尽早添加到页面并立即移除
(document.head || document.documentElement).appendChild(script);
script.remove();
// 添加DOM过滤器，移除加载的检测脚本
const scriptFilter = new MutationObserver((mutations) => {
for (const mutation of mutations) {
if (mutation.type !== 'childList') continue;
for (const node of mutation.addedNodes) {
if (node.nodeName === 'SCRIPT' &&
node.src &&
/devtools[-_]detector|devtoolsDetector/i.test(node.src)) {
console.log("已拦截检测脚本的加载");
node.remove();
}
}
}
});
// 使用更高效的选择器
scriptFilter.observe(document, {
childList: true,
subtree: true
});
// 定时检查观察器是否正常运行
const checkInterval = setInterval(() => {
if (!scriptFilter || !document.body) return;
if (!scriptFilter.takeRecords || scriptFilter.takeRecords().length === 0) {
// 重新初始化观察器如果它停止工作
scriptFilter.disconnect();
scriptFilter.observe(document, { childList: true, subtree: true });
}
}, 30000);
// 页面卸载时清理资源
window.addEventListener('unload', () => {
scriptFilter.disconnect();
clearInterval(checkInterval);
}, { once: true });
}
// 105. 拦截 XMLHttpRequest
// （由于网页通过 <script> 标签直接加载 devtoolsDetector ，无法拦截）
if (false) {
// 重写 XMLHttpRequest
const originalXHR = unsafeWindow.XMLHttpRequest;
unsafeWindow.XMLHttpRequest = function () {
const xhr = new originalXHR();
const originalOpen = xhr.open;
xhr.open = function () {
const url = arguments[1];
if (url && (
url.includes('devtools-detector') ||
url.includes('devtoolsDetector')
)) {
// 使用空实现替换
xhr.addEventListener('readystatechange', function () {
if (xhr.readyState === 4) {
Object.defineProperty(xhr, 'responseText', {
value: 'window.devtoolsDetector = { isOpen: false, launch: function(){}, stop: function(){}, isLaunch: function(){ return false; }, addListener: function(){} };'
});
}
});
}
return originalOpen.apply(this, arguments);
};
return xhr;
};
}
})();