钉钉事件回调c#测试完成

做钉钉事件回调，来监测单据审批状况，钉钉给的真是一个垃圾demo，打开就报错，提交工单上去，给的也是没用的回复

折腾了好久，我终于做好了。

先说下操作流程：

网站向钉钉发出注册信息（包含相关数据，及回调的Url地址）

钉钉服务器会访问该地址，并传递相关数据，

本地网站解密数据，并返回加密的“success”

注册成功，之后可以一直接收到相关的事件信息

先注册：

protected void Button1_Click(object sender, EventArgs e)
    {
        Token _t = new Token();

        string _token = _t.GetTokens();　　　　　　//获取Token

        DefaultDingTalkClient client = new DefaultDingTalkClient("https://oapi.dingtalk.com/call_back/register_call_back");
        OapiCallBackRegisterCallBackRequest request = new OapiCallBackRegisterCallBackRequest();



        request.Url = "http://www.xxx.com/receive.ashx";　　　　　　//回调Url

        request.AesKey = "45skhqweass5232345IUJKWEDL5251054DSFdsuhfW2";　　　　//随机43位字符串

        request.Token = "";　　　　　　　　　　　　　　　　　　　　　　//随机填写

        List<string> _arr = new List<string>();

        _arr.Add("bpms_task_change");　　　　　　　　　　　　　　//填写要监控的信息，具体填写方法看这里 https://open-doc.dingtalk.com/microapp/serverapi2/skn8ld

        _arr.Add("bpms_instance_change");

        request.CallBackTag =_arr;

        OapiCallBackRegisterCallBackResponse response = client.Execute(request, _token);

        string _str = response.Body;

        Response.Write(_str);
    }

        [HttpPost]
        public JsonResult Receive(string signature, string timestamp, string nonce, PostBody body)
        {
            //接收encrypt参数
            string encryptStr = body.encrypt.Replace("{"encrypt":"", "").Replace(""}","");
            //注册时填写的token、aes_key、suitekey
            string token = ConfigurationManager.AppSettings["SuiteToken"];
            //token = "123456";//钉钉测试文档中的token
            string aes_key = ConfigurationManager.AppSettings["Suiteaes_key"];
            //aes_key = "4g5j64qlyl3zvetqxz5jiocdr586fn2zvjpa8zls3ij";//钉钉测试文档中的aes_key
            string suitekey = ConfigurationManager.AppSettings["DD_corpid"];
            //suitekey = "suite4xxxxxxxxxxxxxxx";//钉钉测试文档中的suitekey
 
            #region 验证回调的url
            DingTalkCrypt dingTalk = new DingTalkCrypt(token, aes_key, suitekey);
            string sEchoStr = "";
            int ret = dingTalk.VerifyURL(signature, timestamp, nonce, encryptStr, ref sEchoStr);
            #endregion
 
            #region 解密接受信息，进行事件处理
            string plainText = "";
            ret = dingTalk.DecryptMsg(signature, timestamp, nonce, encryptStr, ref plainText);
            
            Hashtable tb = (Hashtable)JsonConvert.DeserializeObject(plainText, typeof(Hashtable));
            string eventType = tb["EventType"].ToString();
            string res = "success";
            switch (eventType)
            {
                case "user_modify_org"://用户信息修改，执行代码
                    #region 用户信息修改，执行代码
                    
                    #endregion
                    break;
                default: 
                    break;
            }
 
            timestamp = DateTime.Now.GetTimeStamp().ToString();
            string encrypt = "";
            string signature2 = "";
            dingTalk = new DingTalkCrypt(token, aes_key, suitekey);
            ret = dingTalk.EncryptMsg(res, timestamp, nonce, ref encrypt, ref signature2);
 
            Hashtable jsonMap = new Hashtable
                {
                    {"msg_signature", signature2},
                    {"encrypt", encrypt},
                    {"timeStamp", timestamp},
                    {"nonce", nonce}
                };
 
            return Json(jsonMap);
            #endregion
        }

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