Generic JSON.stringify Payload Spoofer

Spoofs and adds a generic spoof attribute to any object passed to JSON.stringify (demo only)

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name         Generic JSON.stringify Payload Spoofer
// @version      1.0.2
// @description  Spoofs and adds a generic spoof attribute to any object passed to JSON.stringify (demo only)
// @match        *://*/*
// @run-at       document-start
// @license      MIT
// @namespace https://greasyfork.org/users/1562248
// ==/UserScript==

(function () {
  const originalStringify = JSON.stringify;

  JSON.stringify = function (value, replacer, space) {
    if (value !== null && typeof value === "object") {
      try {
        const cloned = structuredClone ? structuredClone(value) : JSON.parse(originalStringify(value));
        
        cloned.spoof = "Payload is spoofed";
        console.log("Payload is spoofed"); 
        return originalStringify.call(this, cloned, replacer, space);
      } catch (e) {}
    }

    return originalStringify.call(this, value, replacer, space);
  };
})();