微信防撤回

微信防撤销

try to take over the world!
当前为 2018-11-23 提交的版本，查看最新版本。
换行
// ==UserScript==
// @name         微信防撤销
// @namespace    http://tampermonkey.net/
// @version      1.0.0.1002
// @description  try to take over the world!
// @author       nkxyz
// @match        https://wx.qq.com/*
// @grant        none
// ==/UserScript==

function modifyResponse(response) {

    var original_response, modified_response;
    if (this.readyState === 4) {
        if (this.requestURL && this.requestURL.indexOf("mmwebwx-bin/webwxsync") > 0 && this.requestMethod === "POST") {
            original_response = response.target.responseText;
            // try{
                modified_response = JSON.parse(original_response);
                //console.log(modified_response)
                if(modified_response.AddMsgList && modified_response.AddMsgList.length > 0){
                    var msgType = modified_response.AddMsgList[0].MsgType;
                    var info = modified_response.AddMsgList[0];
                    if ( msgType === 10002){
                        Object.defineProperty(this, "response", {writable: true});
                        modified_response.AddMsgList[0].MsgType = 1;
                        modified_response = JSON.stringify(modified_response);
                        this.response = modified_response;
                    }
                }
            // }catch(e){
            //     this.responseText = original_response
            // }
        }

    }
}

function openBypass(original_function) {

    return function(method, url, async) {
        // 保存请求相关参数
        this.requestMethod = method;
        this.requestURL = url;

        this.addEventListener("readystatechange", modifyResponse);
        return original_function.apply(this, arguments);
    };

}

function sendBypass(original_function) {
    return function(data) {
        // 保存请求相关参数
        this.requestData = data;
        return original_function.apply(this, arguments);
    };
}

XMLHttpRequest.prototype.open = openBypass(XMLHttpRequest.prototype.open);
//XMLHttpRequest.prototype.send = sendBypass(XMLHttpRequest.prototype.send);