拦截弹窗代码实现指南：原理、多平台技术与实战案例

// userscript = true
// ==UserScript==
// @name         Universal Pop-blocker
// @match        *://*/*
// @run-at       document-start
// ==/UserScript==
 
(() => {
  const open = window.open;
  window.open = function (...args) {
    console.warn('[PopBlocker] 拦截可疑调用:', args);
    // 白名单：主域相同且带 _blank 的放行
    const [url, target] = args;
    if (target === '_blank' && new URL(url).hostname.endsWith(location.hostname)) {
      return open.apply(this, args);
    }
    // 其余一律拦截
    return null;
  };
})();

// 监听节点插入，秒杀"遮罩层+关闭按钮"套路
new MutationObserver(() => {
  document.querySelectorAll('div[style*="fixed"]').forEach(n => {
    if (n.offsetWidth / window.innerWidth > 0.8) {
      n.remove();          // 暴力移除
      console.log('[PopBlocker] 已干掉一个全屏遮罩');
    }
  });
}).observe(document.body, { childList: true, subtree: true });

class PopBlockWebChromeClient : WebChromeClient() {
    override fun onCreateWindow(
        view: WebView, isDialog: Boolean, isUserGesture: Boolean, resultMsg: Message?
    ): Boolean {
        // 用户手势触发 + 白名单域名校验
        if (isUserGesture && allowList.contains(view.url?.host)) {
            return super.onCreateWindow(view, isDialog, isUserGesture, resultMsg)
        }
        // 拦截：不给新窗口句柄
        resultMsg?.sendToTarget()
        return true
    }
}

func webView(_ webView: WKWebView,
             createWebViewWith configuration: WKWebViewConfiguration,
             for navigationAction: WKNavigationAction,
             windowFeatures: WKWindowFeatures) -> WKWebView? {
    guard navigationAction.targetFrame == nil,
          let url = navigationAction.request.url,
          allowList.contains(url.host ?? "") else {
        return nil   // 直接返回 nil，弹窗胎死腹中
    }
    // 允许打开新 VC 承载
    let popup = WKWebView(frame: .zero, configuration: configuration)
    viewController.present(PopupVC(popup), animated: true)
    return popup
}

// MinHook 示例，拦截窗口创建
#include <Windows.h>
#include <MinHook.h>
 
static HWND(WINAPI *TrueCreateWindowEx)(
    DWORD, LPCWSTR, LPCWSTR, DWORD, int, int, int, int, HWND, HMENU, HINSTANCE, LPVOID
) = CreateWindowExW;
 
HWND WINAPI HookCreateWindowEx(
    DWORD exStyle, LPCWSTR cls, LPCWSTR title, DWORD style,
    int X, int Y, int W, int H, HWND parent, HMENU menu, HINSTANCE inst, LPVOID param
) {
    if (wcsstr(title, L"限时抢购") || wcsstr(cls, L"Chrome_WidgetWin_2")) {
        SetLastError(ERROR_ACCESS_DENIED);
        return nullptr;          // 直接返回空句柄
    }
    return TrueCreateWindowEx(exStyle, cls, title, style, X, Y, W, H, parent, menu, inst, param);
}
 
// 注入目标进程后安装钩子
MH_Initialize();
MH_CreateHook(&CreateWindowExW, &HookCreateWindowEx, (LPVOID*)&TrueCreateWindowEx);
MH_EnableHook(&CreateWindowExW);

import ApplicationServices
 
func blockPopUps() {
    let options = [kAXTrustedCheckOptionPrompt.takeRetainedValue(): true] as CFDictionary
    guard AXIsProcessTrustedWithOptions(options) else { return }
 
    NSWorkspace.shared.notificationCenter.addObserver(
        forName: NSWorkspace.didLaunchApplicationNotification,
        object: nil,
        queue: nil
    ) { noti in
        guard let app = noti.userInfo?[NSWorkspace.applicationUserInfoKey] as? NSRunningApplication,
              let name = app.localizedName
        else { return }
        if name.contains("广告") || name.contains("Popup") {
            app.forceTerminate()
        }
    }
}

// blocker.js
const { session } = require('electron');
 
session.defaultSession.webRequest.onBeforeRequest(
  { urls: ['*://ads.example.com/*'] },          // 1. 网络层先过滤
  (details, callback) => callback({ cancel: true })
);
 
// 2. 渲染层再兜底
const blocker = `
  window.open = () => null;
  document.addEventListener('DOMNodeInserted', e => {
    const n = e.target;
    if (n.tagName === 'DIV' && n.innerHTML.includes('立即领取')) {
      n.remove();
      console.log('[Blocker] 移除营销节点');
    }
  });
`;
webContents.on('dom-ready', () => webContents.executeJavaScript(blocker));