[已关闭主题记录]油猴脚本有没有可能做到使html中这段内嵌js失效

hrdom 发表于 2024-4-29 21:40

https://www.52pojie.cn/thread-1687961-1-1.html

hrdom 发表于 2024-4-29 21:41

@alexPencil 对于这位大佬当时发的代码
// ==UserScript==
// @name       replaceJS
// @namespace http://tampermonkey.net/
// @version    0.1
// @AuThor    alexPencil
// @match
// @grant    none
// @run-at    document-start
// ==/UserScript==

(function() {
'use strict';
const dispatch = (script, target) => {
   if(script.tagName !== "SCRIPT") {
         return;
   }
   window.onbeforescriptexecute(script);
}

const observer = new MutationObserver(mutations => {
   for(const m of mutations) {
         m.addedNodes.forEach(n => {
            dispatch(n, m.target);
         })
   }
})

observer.observe(document, {
   childList: true,
   subtree: true,
});

window.onbeforescriptexecute = (e) => {
   if(!e.textContent) {return;}
   replaceTxt(e, `window.location.href = 'x.asp';`, "console.log('alexPencil1')");
   replaceTxt(e, `alert("no");`, "console.log('alexPencil2')");
   replaceTxt(e, `window.stop();`, "console.log('alexPencil3')");
}

function replaceTxt(script, target, change) {
   let textContent = script.textContent;
   if (textContent.includes(target)) {
         script.textContent = textContent.replace(target,change);
   }
}})();

hrdom 发表于 2024-4-29 21:44

本帖最后由 hrdom 于 2024-4-29 21:45 编辑

onbeforescriptexecute在chrome系的浏览器中是不支持的，仅在Firefox中支持
参考https://stackoverflow.com/questions/3972038/stop-execution-of-javascript-function-client-side-or-tweak-it

Pwaerm 发表于 2024-4-30 06:47

在插件的background.js里面可以做到
tab标签 loading时就注入改写方法的代码

三滑稽甲苯 发表于 2024-4-30 09:08

run-at document-start 试试？

xieemengxin 发表于 2024-4-30 10:53

写浏览器插件吧，这个好实现点儿。

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[已关闭主题记录]油猴脚本有没有可能做到使html中这段内嵌js失效