// ==UserScript==
// @name 移除外联脚本
// @version 1.0
// @description 拦截并移除第三方/黑名单外联脚本，提供独立白名单与黑名单管理。
// @author DeepSeek (提取自网页广告拦截器)
// @match *://*/*
// @license MIT
// @grant GM_setValue
// @grant GM_getValue
// @grant GM_listValues
// @grant GM_setClipboard
// @grant GM_registerMenuCommand
// @grant GM_addStyle
// @run-at document-start
// @icon data:image/svg+xml;base64,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
// ==/UserScript==
(function () {
'use strict';
// ---------- 安全引用 ----------
const _globals = typeof unsafeWindow !== 'undefined' ? unsafeWindow : window;
const _location = _globals.location;
const _document = _globals.document;
const _URL = _globals.URL;
const _MutationObserver = _globals.MutationObserver;
const _Element = _globals.Element;
const _Set = _globals.Set;
const _Map = _globals.Map;
const _WeakSet = _globals.WeakSet;
const _getComputedStyle = _globals.getComputedStyle;
// ---------- 配置键 ----------
const HOST = _location.hostname;
const KEY_ENABLED = `extscript_enabled_${HOST}`;
const KEY_BLACKLIST = 'extscript_global_blacklist'; // 关键词数组（匹配src）
const KEY_WHITELIST = 'extscript_global_whitelist'; // 域名或URL模式（支持通配符*）
// ---------- 工具函数 ----------
function matchRule(str, rule) {
if (!rule) return false;
const escapeRegex = (s) => s.replace(/([.*+?^${}()|[\]\\])/g, "\\$1");
// 完整URL模式
if (/^https?:\/\//i.test(rule)) {
const pattern = "^" + rule.split("*").map(escapeRegex).join(".*") + "$";
return new RegExp(pattern, "i").test(str);
}
// 路径匹配（以/开头）
if (rule.startsWith('/')) {
const pattern = "^" + rule.split("*").map(escapeRegex).join(".*");
return new RegExp(pattern, "i").test(str);
}
// 包含匹配（默认）
const pattern = ".*" + rule.split("*").map(escapeRegex).join(".*") + ".*";
return new RegExp(pattern, "i").test(str);
}
function isThirdParty(url) {
if (!url || typeof url !== 'string') return false;
try {
const target = new _URL(url, _location.href);
return target.hostname !== HOST;
} catch (e) { return false; }
}
function isWhitelisted(url) {
const wl = GM_getValue(KEY_WHITELIST, []);
if (!wl.length) return false;
try {
const target = new _URL(url, _location.href);
const host = target.hostname;
const full = target.href;
return wl.some(rule => {
if (/^https?:\/\//i.test(rule)) {
return matchRule(full, rule);
} else if (rule.startsWith('/')) {
return matchRule(target.pathname + target.search, rule);
} else {
// 默认按域名匹配（支持通配符）
return matchRule(host, rule);
}
});
} catch (e) { return false; }
}
function isBlacklisted(url) {
const bl = GM_getValue(KEY_BLACKLIST, []);
if (!bl.length) return false;
return bl.some(rule => matchRule(url, rule));
}
function shouldBlockScript(src) {
if (!src || src.startsWith('data:') || src.startsWith('blob:') || src.startsWith('javascript:')) return false;
// 如果白名单命中，放行
if (isWhitelisted(src)) return false;
// 第三方且黑名单命中 -> 拦截
if (isThirdParty(src) && isBlacklisted(src)) return true;
// 第三方但未命中黑名单 -> 默认拦截（只允许白名单内的第三方）
if (isThirdParty(src)) return true;
// 同源但黑名单命中 -> 也拦截（用户可手动加黑）
if (isBlacklisted(src)) return true;
return false;
}
// ---------- 日志管理 ----------
let logs = [];
const MAX_LOGS = 200;
function addLog(src, reason) {
logs.unshift({ src, reason, time: Date.now() });
if (logs.length > MAX_LOGS) logs.pop();
}
function getLogs() { return logs; }
// ---------- 核心拦截 ----------
let enabled = false;
// 已处理元素集合（防止重复处理）
const processedSet = new _WeakSet();
function neutralizeScript(el) {
if (!el || el.tagName !== 'SCRIPT') return;
if (processedSet.has(el)) return;
// 移除src并清空内容
try {
el.removeAttribute('src');
el.textContent = '';
el.setAttribute('type', 'text/plain');
processedSet.add(el);
} catch (e) {}
}
function removeScriptElement(el) {
if (!el || el.tagName !== 'SCRIPT') return;
if (processedSet.has(el)) return;
const src = el.src || el.getAttribute('src') || '';
if (!src) return;
if (!shouldBlockScript(src)) return;
// 记录日志
addLog(src, '第三方/黑名单');
// 阻止加载
neutralizeScript(el);
// 从DOM移除（可选）
try {
if (el.parentNode) el.parentNode.removeChild(el);
} catch (e) {}
processedSet.add(el);
}
// ---------- 拦截入口 ----------
function checkAndIntercept(el) {
if (!enabled) return;
if (!el || el.tagName !== 'SCRIPT') return;
if (processedSet.has(el)) return;
// 如果已经设置了src（静态或动态已有src），直接检查
const src = el.src || el.getAttribute('src') || '';
if (src) {
removeScriptElement(el);
return;
}
// 否则等待src设置时通过hook拦截
}
// 劫持src属性setter
function hookScriptSrc() {
try {
const proto = _globals.HTMLScriptElement.prototype;
const desc = Object.getOwnPropertyDescriptor(proto, 'src');
if (!desc || !desc.set) return;
const origSet = desc.set;
Object.defineProperty(proto, 'src', {
get: desc.get,
set: function (v) {
if (enabled && typeof v === 'string') {
// 先设置，再检查（因为可能后续还会修改）
origSet.call(this, v);
// 立即检查并移除
removeScriptElement(this);
return;
}
return origSet.call(this, v);
},
configurable: true,
enumerable: true
});
} catch (e) {}
}
// 劫持setAttribute
function hookSetAttribute() {
try {
const orig = _Element.prototype.setAttribute;
_Element.prototype.setAttribute = function (name, value) {
if (enabled && this.tagName === 'SCRIPT' && name.toLowerCase() === 'src' && typeof value === 'string') {
// 先调用原方法设置
orig.call(this, name, value);
// 检查并移除
removeScriptElement(this);
return;
}
return orig.call(this, name, value);
};
} catch (e) {}
}
// 劫持appendChild/insertBefore（动态创建）
function hookDOMInsertion() {
try {
const origAppend = _Node.prototype.appendChild;
_Node.prototype.appendChild = function (child) {
if (enabled && child && child.tagName === 'SCRIPT') {
// 先检查现有src
removeScriptElement(child);
// 如果是空src，等后续setter触发
}
return origAppend.call(this, child);
};
const origInsert = _Node.prototype.insertBefore;
_Node.prototype.insertBefore = function (newNode, refNode) {
if (enabled && newNode && newNode.tagName === 'SCRIPT') {
removeScriptElement(newNode);
}
return origInsert.call(this, newNode, refNode);
};
} catch (e) {}
}
// MutationObserver监听新增script
let mo = null;
function startMutationObserver() {
if (mo) mo.disconnect();
mo = new _MutationObserver(mutations => {
if (!enabled) return;
for (const m of mutations) {
for (const n of m.addedNodes) {
if (n.nodeType === 1 && n.tagName === 'SCRIPT') {
removeScriptElement(n);
}
}
if (m.type === 'attributes' && m.attributeName === 'src' && m.target.tagName === 'SCRIPT') {
removeScriptElement(m.target);
}
}
});
mo.observe(_document.documentElement || _document, {
childList: true,
subtree: true,
attributes: true,
attributeFilter: ['src']
});
}
// 扫描现有脚本
function scanExisting() {
if (!enabled) return;
try {
const scripts = _document.querySelectorAll('script[src]');
for (const s of scripts) {
removeScriptElement(s);
}
} catch (e) {}
}
// ---------- 初始化拦截 ----------
function initInterception() {
enabled = GM_getValue(KEY_ENABLED, false);
if (!enabled) return;
// 尽早hook
hookScriptSrc();
hookSetAttribute();
hookDOMInsertion();
// 页面加载后扫描
if (_document.readyState === 'loading') {
_document.addEventListener('DOMContentLoaded', scanExisting);
} else {
scanExisting();
}
startMutationObserver();
// 也劫持document.write中的script
try {
const origWrite = _document.write;
_document.write = function (html) {
if (enabled && typeof html === 'string') {
// 简单处理：提取script[src]并检查
const div = _document.createElement('div');
div.innerHTML = html;
const scripts = div.querySelectorAll('script[src]');
for (const s of scripts) {
const src = s.src || s.getAttribute('src');
if (src && shouldBlockScript(src)) {
// 移除该script标签
s.remove();
addLog(src, 'document.write拦截');
}
}
// 写入修改后的html
html = div.innerHTML;
}
return origWrite.call(this, html);
};
} catch (e) {}
}
// ---------- 管理面板 (Shadow DOM) ----------
let panelObserver = null;
function showManagerUI() {
if (_document.getElementById('extscr-host-container')) return;
const hostContainer = _document.createElement('div');
hostContainer.id = 'extscr-host-container';
Object.assign(hostContainer.style, {
position: 'fixed', top: '0', left: '0', width: '100vw', height: '100vh',
zIndex: '2147483647', pointerEvents: 'none', all: 'initial'
});
hostContainer.style.setProperty('z-index', '2147483647', 'important');
_document.documentElement.appendChild(hostContainer);
const shadowRoot = hostContainer.attachShadow({ mode: 'closed' });
const style = _document.createElement('style');
style.textContent = `
:host { all: initial !important; }
#extscr-overlay {
position: fixed !important; top: 0 !important; left: 0 !important;
width: 100% !important; height: 100% !important;
background: rgba(0, 0, 0, 0.65) !important; backdrop-filter: blur(2px) !important;
z-index: 2147483646 !important; display: block !important; pointer-events: auto !important;
}
#extscr-panel {
position: fixed !important; top: 50% !important; left: 50% !important;
transform: translate(-50%, -50%) !important;
width: 90vw !important; max-width: 450px !important; max-height: 85vh !important;
overflow-y: auto !important; background-color: #ffffff !important;
border: 1px solid #ccc !important; box-shadow: 0 10px 40px rgba(0,0,0,0.4) !important;
z-index: 2147483647 !important; padding: 18px !important; border-radius: 12px !important;
font-family: -apple-system, BlinkMacSystemFont, "Microsoft YaHei", sans-serif !important;
box-sizing: border-box !important; display: block !important; pointer-events: auto !important;
}
#extscr-panel * { box-sizing: border-box !important; }
#extscr-panel h3 { margin: 0 0 12px 0 !important; font-size: 18px !important; color: #222 !important; border-bottom: 2px solid #eee !important; padding-bottom: 8px !important; display: flex !important; justify-content: space-between !important; font-weight: 700 !important; }
#extscr-panel label { display: block !important; margin: 10px 0 5px 0 !important; font-weight: 600 !important; font-size: 13px !important; color: #444 !important; }
#extscr-panel textarea { width: 100% !important; height: 85px !important; margin: 0 0 5px 0 !important; border: 1px solid #ccc !important; border-radius: 6px !important; padding: 8px !important; font-size: 13px !important; background-color: #fafafa !important; color: #111 !important; resize: vertical !important; display: block !important; }
#extscr-panel .buttons { display: flex !important; justify-content: flex-end !important; gap: 8px !important; margin-top: 15px !important; }
#extscr-panel button { padding: 10px 14px !important; border-radius: 6px !important; cursor: pointer !important; border: none !important; font-weight: 500 !important; font-size: 13px !important; display: inline-block !important; text-align: center !important; }
#extscr-panel .save-btn { background-color: #007bff !important; color: white !important; flex-grow: 1 !important; }
#extscr-panel .cancel-btn { background-color: #eee !important; color: #333 !important; }
#extscr-panel .log-area { background-color: #f8f8f8 !important; border: 1px solid #ddd !important; border-radius: 6px !important; padding: 6px !important; max-height: 120px !important; overflow-y: auto !important; font-size: 12px !important; font-family: monospace !important; white-space: pre-wrap !important; word-break: break-all !important; }
`;
shadowRoot.appendChild(style);
const overlay = _document.createElement('div');
overlay.id = 'extscr-overlay';
const panel = _document.createElement('div');
panel.id = 'extscr-panel';
const blacklist = GM_getValue(KEY_BLACKLIST, []).join('\n');
const whitelist = GM_getValue(KEY_WHITELIST, []).join('\n');
const logText = getLogs().map(l => `${new Date(l.time).toLocaleTimeString()} ${l.src} (${l.reason})`).join('\n');
panel.innerHTML = `
管理面板
${logText || '暂无日志'}
`;
shadowRoot.appendChild(overlay);
shadowRoot.appendChild(panel);
shadowRoot.getElementById('extscr-save').onclick = () => {
const black = shadowRoot.getElementById('extscr-black').value.split('\n').map(s => s.trim()).filter(s => s);
const white = shadowRoot.getElementById('extscr-white').value.split('\n').map(s => s.trim()).filter(s => s);
GM_setValue(KEY_BLACKLIST, black);
GM_setValue(KEY_WHITELIST, white);
_location.reload();
};
shadowRoot.getElementById('extscr-cancel').onclick = () => {
if (panelObserver) { panelObserver.disconnect(); panelObserver = null; }
hostContainer.remove();
};
// 防止被删除
if (panelObserver) panelObserver.disconnect();
panelObserver = new MutationObserver((mutations) => {
for (const m of mutations) {
if (Array.from(m.removedNodes).includes(hostContainer)) {
_document.documentElement.appendChild(hostContainer);
}
}
});
panelObserver.observe(_document.documentElement, { childList: true });
}
// ---------- 菜单命令 ----------
function registerMenu() {
const isEnabled = GM_getValue(KEY_ENABLED, false);
GM_registerMenuCommand(`${isEnabled ? '✅' : '❌'} 本站拦截: ${isEnabled ? '开启' : '关闭'}`, () => {
GM_setValue(KEY_ENABLED, !isEnabled);
_location.reload();
});
GM_registerMenuCommand("⚙️ 管理面板", showManagerUI);
}
// ---------- 启动 ----------
registerMenu();
// 早期初始化（document-start）
function earlyInit() {
enabled = GM_getValue(KEY_ENABLED, false);
if (!enabled) return;
// 立即扫描现有script（如果有）
if (_document.documentElement) {
scanExisting();
} else {
// 等待documentElement出现
const mo = new _MutationObserver(() => {
if (_document.documentElement) {
mo.disconnect();
scanExisting();
}
});
mo.observe(_document, { childList: true });
}
// 安装MutationObserver（尽早监听新增）
startMutationObserver();
// 原型hook在DOMContentLoaded后执行（因为原型需要可用）
_document.addEventListener('DOMContentLoaded', () => {
hookScriptSrc();
hookSetAttribute();
hookDOMInsertion();
// 再次扫描（可能新增了）
scanExisting();
});
}
earlyInit();
})();