// ==UserScript==
// @name         ZaloDecryptor
// @namespace    http://tampermonkey.net/
// @version      1.0.0
// @description  Decrypt and log Zalo's HTTP requests and WebSocket traffics
// @author       ElectroHeavenVN
// @match        https://chat.zalo.me/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=zalo.me
// @grant        none
// @run-at       document-start
// @updateURL    https://gist.github.com/ElectroHeavenVN/ded1eb9c791018ec134ab6f0cff57f2f/raw/ZaloDecryptor.user.js
// @downloadURL  https://gist.github.com/ElectroHeavenVN/ded1eb9c791018ec134ab6f0cff57f2f/raw/ZaloDecryptor.user.js
// ==/UserScript==

(function() {
    'use strict';
    const console_log = window.console.log;
    var httpHookInstalled = false;
    var wsHookInstalled = false;

    const originalOpen = XMLHttpRequest.prototype.open;
    XMLHttpRequest.prototype.open = function (method, url, async, user, password) {
        console_log("%c[XMLHttpRequest] %c[Send] %c" + url, 'color: red', 'color: orange', '');
        originalOpen.apply(this, arguments);
        if (httpHookInstalled) return;
        if (!url.includes("api/login/getServerInfo")) return;
        if (url.includes("viewerkey")) return;
        httpHookInstalled = true;
        console_log("Installing HTTP hooks...");
        const ZHttpWebpack = window.webpackJsonp.push([[Math.random()],{},[["z0WU"]]]);

        ZHttpWebpack.default.original_encodeAES = ZHttpWebpack.default.encodeAES;
        ZHttpWebpack.default.encodeAES = (e, t = 0) => {
            console_log("%c[HTTP] %c[Send] %c" + e, 'color: red', 'color: orange', '');
            return ZHttpWebpack.default.original_encodeAES(e, t);
        };
        ZHttpWebpack.default.original_decodeAES = ZHttpWebpack.default.decodeAES;
        ZHttpWebpack.default.decodeAES = (e, t = 0) => {
            var n = ZHttpWebpack.default.original_decodeAES(e, t);
            console_log("%c[HTTP] %c[Receive] %c" + n, 'color: red', 'color: orange', '');
            return n;
        };
    };

    const originalAddEventListener = WebSocket.prototype.addEventListener;
    WebSocket.prototype.addEventListener = function (...args) {
        originalAddEventListener.apply(this, arguments);
        if (!wsHookInstalled) {
            console_log("Installing WebSocket hooks...");
            const ZWSWebpack = window.webpackJsonp.push([[Math.random()],{},[["8RMw"]]]);
            ZWSWebpack.default.original__onData = ZWSWebpack.default._onData;
            ZWSWebpack.default._onData = async (e, t, a, n) => {
                console_log("%c[WebSocket] %c[Receive] %cOpcode:%c " + e + ", %ccommand:%c " + t + ", %cversion:%c " + a + ", %cdata:%c " + n, 'color: red', 'color: orange', 'color: cyan', '', 'color: cyan', '', 'color: cyan', '', 'color: cyan', '');
                return await ZWSWebpack.default.original__onData(e, t, a, n);
            };
            wsHookInstalled = true;
        }
    }
})();