/* eslint-disable no-multi-spaces */ // ==UserScript== // @name 中国大学MOOC反检测 // @name:zh-CN 中国大学MOOC反检测 // @name:en iCourse163 Anti-detect // @namespace iCourse163-Anti-detect // @version 0.1 // @description 防止中国大学MOOC页面检测模拟点击类插件/脚本（目前已发现的检测只有检测模拟点击类的） // @description:zh-CN 防止中国大学MOOC页面检测模拟点击类插件/脚本（目前已发现的检测只有检测模拟点击类的） // @description:en Prevent plugins(e.g. userscripts) being detected by 1course163 while simulating clicks on webpage // @author PY-DNG // @license WTFPL - See https://www.wtfpl.net/ // @match http*://www.icourse163.org/* // @icon https://pic.jitudisk.com/public/2022/06/04/59e467b286dcb.png // @grant none // @run-at document-start // @downloadURL none // ==/UserScript== /** * Copyright © 2022 PY-DNG * This work is free. You can redistribute it and/or modify it under the * terms of the Do What The Fuck You Want To Public License, Version 2, * as published by Sam Hocevar. See http://www.wtfpl.net/ for more details. **/ /** * This program is free software. It comes without any warranty, to * the extent permitted by applicable law. You can redistribute it * and/or modify it under the terms of the Do What The Fuck You Want * To Public License, Version 2, as published by Sam Hocevar. See * http://www.wtfpl.net/ for more details. **/ (function(window, document) { /* Protect.js by PY-DNG */ /* !IMPORTANT! MAKE SURE THIS CODE IS EXECUTED BEFORE WINDOW ONLOAD !IMPORTANT! */ try { // Unpolluted resources const iframe = document.createElement('iframe'); iframe.srcdoc = ''; iframe.style.position = 'fixed'; iframe.style.width = iframe.style.height = '0'; (document.body ? document.body : document.head).appendChild(iframe); const UNPOLLUTED = new Proxy({}, { get: function(target, property, receiver) { switch (property) { case 'iframe': return iframe; default: { let value = iframe; for (const prop of property.split(/[\.\/]/)) { value = value[prop]; } return value; } } } }); // Protect addEventListener & removeEventListener defineProperty(Node.prototype, 'addEventListener', addEventListener); defineProperty(Node.prototype, 'removeEventListener', UNPOLLUTED['contentWindow.EventTarget.prototype.removeEventListener']); for (const func of ['createElement', 'createElementNS', 'querySelector', 'querySelectorAll', 'getElementById', 'getElementsByClassName', 'getElementsByName', 'getElementsByTagName', 'getElementsByTagNameNS']) { hookAPIFunc(func); } // Protect root & root-like elements for (const elm of [document.querySelector('#g-body'), document.documentElement, document, window]) { const addEventListener = UNPOLLUTED['contentWindow.EventTarget.prototype.addEventListener']; typeof elm === 'object' && elm !== null && hookElm(elm); } function hookAPIFunc(funcName) { for (const api of ['Document', 'Element']) { const API = window[api]; const proto = API.prototype; proto.hasOwnProperty(funcName) && defineProperty(proto, funcName, function() { let value = UNPOLLUTED['contentWindow.'+api+'.prototype.'+funcName].apply(this, Array.from(arguments)); if (value instanceof NodeList) { value = Array.prototype.map.call(value, (elm) => (hookElm(elm))); value.item = (i) => (i < value.length ? value[i] : null); } else if (value instanceof EventTarget) { value = hookElm(value); } return value; }); } } function hookElm(elm) { defineProperty(elm, 'addEventListener', addEventListener); defineProperty(elm, 'removeEventListener', UNPOLLUTED['contentWindow.EventTarget.prototype.removeEventListener']); return elm; } function defineProperty(obj, prop, value) { // Check repeat if (obj._protected && obj._protected[prop] && obj[prop].toString() === value.toString()) { return false; } // Define property define(obj, prop, value, true); // Prevent repeat !obj._protected && define(obj, '_protected', {}, false); define(obj._protected, prop, true, true); return true; function define(obj, prop, value, enumerable) { Object.defineProperty(obj, prop, { value: value, writable: false, configurable: false, enumerable: enumerable }); } } function addEventListener(type, listener) { const banlist = ['function(a5){if(', 'function(a6){a6']; for (const bancode of banlist) { if (type === 'click' && listener.toString().startsWith(bancode)) { return; } } return UNPOLLUTED['contentWindow.EventTarget.prototype.addEventListener'].apply(this, Array.from(arguments)); } function toString(o) { return UNPOLLUTED['contentWindow.Object.prototype.toString'].call(o); } } catch (err) { throw err; debugger; } }).apply(null, typeof unsafeWindow === 'object' ? [unsafeWindow, unsafeWindow.document] : [window, document]);