菜鸟天地对接功能之单点接入分享

最近在跟菜鸟天地系统对接，业务中涉及到单点接入，感觉其实现思想很不错，现分享一下，供大家参考：

从CP内部系统进入菜鸟天地，也就是从菜鸟的合作伙伴（物流或快递公司内部系统）单点跳转进入菜鸟天地系统

红色的请求需要CP实现(合作方)：

1、LINK接口( )：服务器端获取快速登录菜鸟的令牌（loginToken） CNUSER_GET_LOGIN_TOKEN 请求参数：员工工号 返回参数：loginToken

2、生成快速登录菜鸟的URL，并从浏览器发起302跳转 #*http://login.cainiao.com/cplogin.htm?loginToken=2nAiCDsSZVXBS8kLApj9iA&redirectUrl=http%3a%2f%2ffly.cainiao.com goto:登陆后的目标跳转地址。如菜鸟天地的地址为：http%3a%2f%2ffly.cainiao.com login_token:菜鸟返回的令牌（注意：login_token使用一次后即失效，且LINK接口返回起60秒后超时失效）

功能实现：用户在合作方系统登录后，访问菜鸟天地链接时调用菜鸟接口返回认证token，再构造地址跳转到菜鸟天地系统，token使用一次后失效

从合作方登录菜鸟天地

        /// <summary>
        /// 登录菜鸟天地系统
        /// </summary>
        /// <returns></returns>
public ActionResult CaiNiaoTianDi()
        {
            string userCode = UserInfo.Code;
            try
            {
                JsonResult<string> result = CaiNiaoAPIUtilities.GetCaiNiaoLoginToken(userCode);
                if (result.Status)
                {
                    string token = result.ResultValue;
                    string url = string.Format("http://login.cainiao.com/cplogin.htm?loginToken={0}&redirectUrl=https://fly.cainiao.com", token);

                    return Redirect(url);
                }
                else
                {
                    return Content("登录菜鸟系统出错" + result.Data);
                }
            }
            catch (Exception ex)
            {
                NLogHelper.Warn(ex, "登录菜鸟系统异常");
                return Content("登录菜鸟系统异常");
            }
        }

        /// <summary>
        /// 获取登录菜鸟系统的token
        /// </summary>
        /// <param name="userCode"></param>
        /// <returns></returns>
        public static JsonResult<string> GetCaiNiaoLoginToken(string userCode)
        {
            JsonResult<string> result = new JsonResult<string>();
            JavaScriptSerializer serializer = new JavaScriptSerializer();
            serializer.RegisterConverters(new JavaScriptConverter[] { new ExpandoJsonConverter() });
            result.Status = false;
            result.StatusMessage = "未知错误";
            string response = string.Empty;
            string logisticsInterface = string.Empty;
            string dataDigest = string.Empty;
            // 已在菜鸟平台配置json格式数据传输
            using (WebClient webClient = new WebClient())
            {
                NameValueCollection postValues = Init();
                dynamic user = new ExpandoObject();
                user.employee_no = userCode;
                // 调用删除
                logisticsInterface = serializer.Serialize(user);
                dataDigest = CaiNiaoApiUtilities.SignSdkRequest(logisticsInterface, secretKey);

                // 根据员工工号删除用户信息
                postValues.Add("employee_no", userCode);
                postValues.Add("msg_type", "CNUSER_GET_LOGIN_TOKEN");
                postValues.Add("data_digest", dataDigest);
                postValues.Add("logistics_interface", logisticsInterface);
                byte[] responseArray = webClient.UploadValues(url, postValues);
                response = Encoding.UTF8.GetString(responseArray);
                // 根据返回值判断
                dynamic obj = serializer.Deserialize<ExpandoObject>(response);
                // 逻辑判断 
                if (IsPropertyExist(obj, "success") && obj.success == "true")
                {
                    result.Status = true;
                    result.ResultValue = obj.login_token;
                    result.Data = response;
                    result.StatusMessage = "成功返回";
                }
                else
                {
                    result.Status = false;
                    result.Data = response;
                    result.StatusMessage = "调用失败";
                }
            }

            return result;
        }

        /// <summary>
        /// 签名
        /// </summary>
        /// <param name="content"></param>
        /// <param name="secretKey"></param>
        /// <returns></returns>
        public static string SignSdkRequest(string content, string secretKey)
        {
            byte[] binaryData = Encoding.UTF8.GetBytes(content + secretKey);
            MD5 md5 = new MD5CryptoServiceProvider();
            byte[] output = md5.ComputeHash(binaryData);
            string dataDigest = Convert.ToBase64String(output);
            return dataDigest;
        }

        /// <summary>
        /// 初始化
        /// </summary>
        /// <returns></returns>
        private static NameValueCollection Init()
        {
            NameValueCollection postValues = new NameValueCollection();
            postValues.Add("logistic_provider_id", logisticProviderId);
            postValues.Add("to_code", "");
            return postValues;
        }

java版本的签名方法

        String logisticsInterface = JSONArray.toJSONString(userMap);
        String dataSign = logisticsInterface + secretKey;
        byte[] binaryData=dataSign.getBytes("UTF-8");
        byte[] signatureData = DigestUtils.md5Digest(binaryData);
        String  dataDigest = Base64.encodeBase64String(signatureData);