PDFOffice_Windows_exe/PDF Office/Helper/ServiceHelper.cs

using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using PDF_Master.Properties;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Management;
using System.Net;
using System.Runtime.InteropServices;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;

namespace PDF_Master.Helper
{
    /// <summary>
    /// 注册登陆相关的工具类
    /// </summary>
    /// 

    public static class ServiceHelper
    {

        public static bool IsLogin=false;
        public static string ALLPassword = "";
        public static string access_token = "";
        public static string outemail = "";
        public static string outcode = "";
        public static string outregister = "";
        public static string outlogin = "";
        public static string code = "";
        public static string okcode = "";
        public static string remsg = "";
        public static string state = "";
        public static string AppCode = "com.brother.pdfreaderprofree.windows";
#if DEBUG
        //测试环境
        public static string RequestHost = "http://139.196.160.101:8081";
#else
        //正式环境
        public static string RequestHost = "https://pdfmaster.pdfreaderpro.com";
#endif



        //验证邮箱
        public static string OKemailUrl = "/pdf-office-sso/auth/validUser";

        //验证验证码
        public static string OKcodeUrl = "/pdf-office-sso/auth/isEmailCodeValid";

        //发送验证码
        public static string GetcodeUrl = "/pdf-office-sso/auth/getVerifyCode";

        //注册邮箱
        public static string registerUrl = "/pdf-office-sso/auth/emailRegister";

        //登录
        public static string LoginUrl = "/pdf-office-sso/auth/emailLogin";

        //登出
        public static string LogoutUrl = "/pdf-office-sso/user/logout";

        //注销
        public static string UseroutUrl = "/pdf-office-sso/user/logOffForUser";

        //重置密码
        public static string RebirthUrl = "/pdf-office-sso/auth/resetPassword";

        //获取用户信息
        public static string GetUserUrl = "/pdf-office-sso/user/me";



        /// <summary>
        /// 用于检查网络是否可以连接互联网,true表示连接成功,false表示连接失败 
        /// </summary>
        /// <returns></returns>
        [DllImport("wininet.dll")]
        private extern static bool InternetGetConnectedState(int Description, int ReservedValue);

        public static bool IsConnectInternet()
        {
            int Description = 0;
            return InternetGetConnectedState(Description, 0);
        }




        private static string computerInfo;
        /// <summary>
        /// 电脑品牌信息
        /// </summary>
        public static string ComputerInfo
        {
            get {
                if (computerInfo == null)
                {
                    computerInfo = GetComputerInfo();
                }
                return computerInfo; 
            
            }
            set { computerInfo = value; }
        }

        private static string systemInfo;

        /// <summary>
        /// 系统信息
        /// </summary>
        public static string SystemInfo
        {
            get
            {

                if (systemInfo == null)
                {
                    systemInfo = GetSystemInfo();
                }
                return systemInfo;
            }

            set { systemInfo = value; }
        }


        private static string GetSystemInfo()
        {
            try
            {
                string s = "";
                SelectQuery sq = new SelectQuery("Win32_OperatingSystem");
                ManagementObjectSearcher mos = new ManagementObjectSearcher(sq);
                ManagementObjectCollection moc = mos.Get();
                foreach (ManagementObject mo in moc)
                {
                    s = mo.Properties["Version"].Value.ToString();
                }
                moc.Dispose();
                sq = null;
                return s;
            }
            catch { return ""; }
        }

        private static string GetComputerInfo()
        {
            try
            {
                string s = "";
                System.Windows.Controls.TextBox text = new System.Windows.Controls.TextBox();
                SelectQuery sq = new SelectQuery("Win32_ComputerSystem");
                ManagementObjectSearcher mos = new ManagementObjectSearcher(sq);
                ManagementObjectCollection moc = mos.Get();
                foreach (ManagementObject mo in moc)
                {
                    s = mo.Properties["Manufacturer"].Value + " " + mo.Properties["Model"].Value;
                }
                moc.Dispose();
                sq = null;
                return s;
            }
            catch { return ""; }
        }

        /// <summary>
        /// 操作系统生成的UUID，用于获取虚拟机用户的设备识别码
        /// </summary>
        /// <returns></returns>
        public static string GetUUID()
        {
            string systemId = null;
            using (ManagementObjectSearcher mos = new ManagementObjectSearcher("select * from Win32_ComputerSystemProduct"))
            {
                foreach (var item in mos.Get())
                {
                    systemId = item["UUID"].ToString();
                }
            }
            return systemId;

        }

        /// <summary>
        /// 主板编号
        /// </summary>
        /// <returns></returns>
        public static string GetBoardId()
        {
            var st = string.Empty;
            var mos = new ManagementObjectSearcher("Select * from Win32_BaseBoard");
            foreach (var o in mos.Get())
            {
                var mo = (ManagementObject)o;
                st = mo["SerialNumber"].ToString();
            }
            return st;
        }

        /// <summary>
        /// 获取设备唯一ID
        /// </summary>
        /// <returns></returns>
        public static string GetDeviceSerialNumber()
        {
            StringBuilder DeviceBuilder = new StringBuilder();
            bool IsVirtual = false;
            string boardId = GetBoardId();
            string uuid = GetUUID();

            //判断是否是虚拟机用户
            if (boardId.ToLower() == "" || boardId.ToLower() == "none")
            {
                if (string.IsNullOrEmpty(uuid) || uuid.ToLower() == "none")
                    return string.Empty;
                else
                    IsVirtual = true;
            }
            //真实机器用户 用主板id作为唯一识别码
            if (!IsVirtual)
            {
                DeviceBuilder.Append(boardId);
            }
            else
            {
                DeviceBuilder.Append(uuid);
            }

            MD5 md5 = MD5.Create();
            List<byte> charbytes = new List<byte>();
            foreach (char code in DeviceBuilder.ToString().ToArray())
            {
                charbytes.Add((byte)code);
            }
            byte[] md5Array = md5.ComputeHash(charbytes.ToArray());
            DeviceBuilder = new StringBuilder();
            foreach (var code in md5Array)
            {
                DeviceBuilder.Append(code.ToString("X2"));
            }
            return DeviceBuilder.ToString();
        }


        //超时同步为20秒
        /// <summary>
        /// 用户信息获取
        /// </summary>
        /// <returns></returns>
        public static String GetUser()
        {
           
            HttpWebResponse response = null;
            ServicePointManager.DefaultConnectionLimit = 200;

            HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(RequestHost + GetUserUrl+"");
            request.Method = "Get";
            request.Headers.Add("Authorization", $"Bearer {Settings.Default.AppProperties.LoginToken}");
            request.ContentType = "text/html;charset=UTF-8";
            //request.Accept = "application/vnd.api+json;version=1";
            request.UserAgent = "Apifox/1.0.0 (https://www.apifox.cn)";
            request.Timeout = 20000;
            request.ServicePoint.Expect100Continue = false;
            try
            {
                response = (HttpWebResponse)request.GetResponse();
                using (StreamReader reader = new StreamReader(response.GetResponseStream()))
                {
                    string responseData = reader.ReadToEnd();
                    Console.WriteLine(responseData);
                    reader.Close();
                    JObject jobject = (JObject)JsonConvert.DeserializeObject(responseData);
                    if (response != null)
                    {
                        response.Close();
                    }
                    if (request != null)
                    {
                        request.Abort();
                    }
                    Console.WriteLine(responseData);
                    JToken jToken;
                    if(jobject.TryGetValue("msg" ,out jToken)==false)
                    {
                        App.IsLogin = true;
                        Settings.Default.UserDate.Email= jobject["email"].ToObject<string>().ToLower();
                        Settings.Default.UserDate.id= jobject["id"].ToObject<string>().ToLower();
                        Settings.Default.UserDate.subscribeid = jobject["subscriptionInfoList"][0]["id"].ToObject<string>().ToLower();
                        Settings.Default.UserDate.subscribeuserid = jobject["subscriptionInfoList"][0]["userId"].ToObject<string>().ToLower();
                        Settings.Default.UserDate.subscribeplatform = jobject["subscriptionInfoList"][0]["platform"].ToObject<int>();
                        Settings.Default.UserDate.subscribestatus = jobject["subscriptionInfoList"][0]["status"].ToObject<int>();
                        if(Settings.Default.UserDate.subscribestatus>0)
                        {
                            Settings.Default.UserDate.subscribeendDate = jobject["subscriptionInfoList"][0]["endDate"].ToObject<string>().ToLower();
                        }

                     
                        Settings.Default.UserDate.subscribepayType = jobject["subscriptionInfoList"][0]["payType"].ToObject<int>();


                        //Settings.Default.UserDate.subscriberType = jobject["subscriberType"].ToObject<string>().ToLower();


                        #region 试用策略
                        //Settings.Default.UserDate.isInFreeUseTime= jobject["isInFreeUseTime"].ToObject<bool>();
                        //Settings.Default.UserDate.freeDate= jobject["freeDate"].ToObject<string>().ToLower();
                        //if(DateTime.Parse(Settings.Default.UserDate.freeDate)<=DateTime.Now)
                        //{
                        //    Settings.Default.UserDate.isInFreeUseTime = false;
                        //}
                        #endregion
                        App.mainWindowViewModel.Useremailchar = Settings.Default.UserDate.Email.Substring(0, 1);
                        Settings.Default.Save();
                        return "ture";
                    }
                   else
                    {
                      
                        return "false";
                    }
                }
           }
            catch (System.Net.WebException e)
            {
                int statusCode = 0;
                if (e.Response is HttpWebResponse)
                {
                    //从网络异常信息里解析错误，后面的逻辑根据错误码判断会更准确
                    statusCode = (int)((HttpWebResponse)e.Response).StatusCode;
                }
                //试用策略注释
                //if (DateTime.Parse(Settings.Default.UserDate.freeDate) <= DateTime.Now)
                //{
                //    Settings.Default.UserDate.isInFreeUseTime = false;
                //}
                Console.WriteLine(e.Message);
                //无权限
                if (Settings.Default.AppProperties.LoginToken == "")
                    return "No Token";
                else if(statusCode == 401)
                {
                    App.IsLogin = false;
                    return "401";
                }
                else  return "300";
            }
            catch
            {
                //试用策略注释
                //if (DateTime.Parse(Settings.Default.UserDate.freeDate) <= DateTime.Now)
                //{
                //    Settings.Default.UserDate.isInFreeUseTime = false;
                //}
                return "300";
            }
           
               


            
        }

        /// <summary>
        /// 验证email格式
        /// </summary>
        /// <param name="intemail"></param>
        /// <param name="validType"></param>
        /// <returns></returns>
        public static String Ok_email(string intemail,string validType)
        {
            
            HttpWebResponse response = null;
            ServicePointManager.DefaultConnectionLimit = 200;
            HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(RequestHost + OKemailUrl);
            request.Method = "Post";
            request.ContentType = "application/json";
            //request.Accept = "application/vnd.api+json;version=1";
            request.UserAgent = "Apifox/1.0.0 (https://www.apifox.cn)";
            request.Timeout = 20000;
            request.ServicePoint.Expect100Continue = false;
            StringWriter sw = new StringWriter();
            using (JsonWriter writer = new JsonTextWriter(sw))
            {
                writer.WriteStartObject();
                writer.WritePropertyName("appId");
                writer.WriteValue(16);
                writer.WritePropertyName("platformType");
                writer.WriteValue(0);
                writer.WritePropertyName("username");
                writer.WriteValue(intemail);
                writer.WritePropertyName("validType");
                writer.WriteValue(validType);
                writer.WriteEndObject();
            }
            try
            {
                string postBody = sw.ToString();
            using (StreamWriter writer = new StreamWriter(request.GetRequestStream()))
            {
                writer.Write(postBody);
                writer.Close();
            }
            
                response = (HttpWebResponse)request.GetResponse();
                using (StreamReader reader = new StreamReader(response.GetResponseStream()))
                {
                    string responseData = reader.ReadToEnd();
                    Console.WriteLine(responseData);
                    reader.Close();
                    JObject jobject = (JObject)JsonConvert.DeserializeObject(responseData);
                    //outemail = jobject["msg"].ToObject<string>().ToLower();
                    if (response != null)
                    {
                        response.Close();
                    }
                    if (request != null)
                    {
                        request.Abort();
                    }
                    return jobject["code"].ToObject<string>().ToLower();


                }
            }
            catch
            {
                return "300";
            }
           
        }

       
        /// <summary>
        /// 获取验证码
        /// </summary>
        /// <param name="action"></param>
        /// <param name="email"></param>
        /// <returns></returns>
        public static string Get_code(string action, string email)
        {
            string post = $"?action={action}&appId=16&receiver={email}&type=0";
            HttpWebResponse response = null;
            ServicePointManager.DefaultConnectionLimit = 200;

            HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(RequestHost + GetcodeUrl + post);
            request.Method = "Get";
            request.ContentType = "text/html;charset=UTF-8";
            //request.Accept = "application/vnd.api+json;version=1";
            request.UserAgent = "Apifox/1.0.0 (https://www.apifox.cn)";
            request.Timeout = 20000;
            request.ServicePoint.Expect100Continue = false;
            try
            {
                response = (HttpWebResponse)request.GetResponse();
                using (StreamReader reader = new StreamReader(response.GetResponseStream()))
                {
                    string responseData = reader.ReadToEnd();
                    Console.WriteLine(responseData);
                    reader.Close();
                    JObject jobject = (JObject)JsonConvert.DeserializeObject(responseData);
                    if (response != null)
                    {
                        response.Close();
                    }
                    if (request != null)
                    {
                        request.Abort();
                    }
                    return jobject["code"].ToObject<string>().ToLower();

                }
            }
            catch
            {
                return "300";

            }


            
        }

        /// <summary>
        /// 验证验证码是否正确
        /// </summary>
        /// <param name="email"></param>
        /// <param name="code"></param>
        /// <param name="type"></param>
        /// <returns></returns>
        public static String Ok_code(string email, string code, string type)
        {
           
            string post = $"?account={email}&code={code}&type={type}&appId=16";
            HttpWebResponse response = null;
            ServicePointManager.DefaultConnectionLimit = 200;

            HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(RequestHost + OKcodeUrl + post);
            request.Method = "Get";
            request.ContentType = "text/html;charset=UTF-8";
            //request.Accept = "application/vnd.api+json;version=1";
            request.UserAgent = "Apifox/1.0.0 (https://www.apifox.cn)";
            request.Timeout = 20000;
            request.ServicePoint.Expect100Continue = false;
            try
            {
                response = (HttpWebResponse)request.GetResponse();
                using (StreamReader reader = new StreamReader(response.GetResponseStream()))
                {
                    string responseData = reader.ReadToEnd();
                    Console.WriteLine(responseData);
                    reader.Close();
                    JObject jobject = (JObject)JsonConvert.DeserializeObject(responseData);
                    if (response != null)
                    {
                        response.Close();
                    }
                    if (request != null)
                    {
                        request.Abort();
                    }
                    return jobject["code"].ToObject<string>().ToLower();

                }
            }
            catch
            {
                return "300";
            }
           
        }


        /// <summary>
        /// 注册账号
        /// </summary>
        /// <param name="intemail"></param>
        /// <param name="intpassword"></param>
        /// <param name="intcode"></param>
        /// <param name="uuid"></param>
        /// <returns></returns>
        public static String Register_email(string intemail, string intpassword, string intcode, string uuid)
        {
          
            HttpWebResponse response = null;
            ServicePointManager.DefaultConnectionLimit = 200;
            HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(RequestHost + registerUrl);
            request.Method = "Post";
            request.ContentType = "application/json";
            //request.Accept = "application/vnd.api+json;version=1";
            request.UserAgent = "Apifox/1.0.0 (https://www.apifox.cn)";
            request.Timeout = 20000;
            request.ServicePoint.Expect100Continue = false;
            StringWriter sw = new StringWriter();
            using (JsonWriter writer = new JsonTextWriter(sw))
            {
                writer.WriteStartObject();

                writer.WritePropertyName("appId");
                writer.WriteValue(16);
                writer.WritePropertyName("deviceSign");
                writer.WriteValue(uuid);
                writer.WritePropertyName("password");
                writer.WriteValue(intpassword);
                writer.WritePropertyName("platformType");
                writer.WriteValue(0);
                writer.WritePropertyName("username");
                writer.WriteValue(intemail);
                writer.WritePropertyName("verifyCode");
                writer.WriteValue(intcode);
                writer.WritePropertyName("model");
                writer.WriteValue("windows");
                writer.WriteEndObject();
            }
            try
            {
                string postBody = sw.ToString();
            using (StreamWriter writer = new StreamWriter(request.GetRequestStream()))
            {
                writer.Write(postBody);
                writer.Close();
            }
            
                response = (HttpWebResponse)request.GetResponse();
                using (StreamReader reader = new StreamReader(response.GetResponseStream()))
                {
                    string responseData = reader.ReadToEnd();
                    Console.WriteLine(responseData);
                    reader.Close();
                    JObject jobject = (JObject)JsonConvert.DeserializeObject(responseData);
                    if (response != null)
                    {
                        response.Close();
                    }
                    if (request != null)
                    {
                        request.Abort();
                    }

                    if (jobject["code"].ToObject<string>().ToLower() == "200")
                    {
                        App.IsLogin =true;                  
                        access_token = jobject["result"]["access_token"].ToObject<string>().ToLower();
                        Settings.Default.AppProperties.LoginToken = jobject["result"]["access_token"].ToObject<string>().ToLower();
                        Settings.Default.Save();
                        
                        GetUser();
                    }
                    //return jobject["code"].ToObject<string>().ToLower();

                    return "200";
                }
            }
            catch
            {
                return "300";
            }
          
        }


        /// <summary>
        /// 登录
        /// </summary>
        /// <param name="intemail"></param>
        /// <param name="intpassword"></param>
        /// <param name="uuid"></param>
        /// <returns></returns>
        public static String Login(string intemail, string intpassword, string uuid)
        {
            
            string postBody = $"?appId=16&deviceSign={uuid}&email={intemail}&password={intpassword}&platformType=0&model=windows";
            HttpWebResponse response = null;
            ServicePointManager.DefaultConnectionLimit = 200;
            HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(RequestHost + LoginUrl + postBody);
            request.Method = "Post";
            request.ContentType = "application/x-www-form-urlencoded";
            //request.Accept = "application/vnd.api+json;version=1";
            request.UserAgent = "Apifox/1.0.0 (https://www.apifox.cn)";
            request.Timeout = 20000;
            request.ServicePoint.Expect100Continue = false;
            try
            {
                response = (HttpWebResponse)request.GetResponse();
                using (StreamReader reader = new StreamReader(response.GetResponseStream()))
                {
                    string responseData = reader.ReadToEnd();
                    Console.WriteLine(responseData);
                    reader.Close();
                    JObject jobject = (JObject)JsonConvert.DeserializeObject(responseData);
                    if (response != null)
                    {
                        response.Close();
                    }
                    if (request != null)
                    {
                        request.Abort();
                    }
                    if (jobject["code"].ToObject<string>().ToLower() == "200")
                    {
                        App.IsLogin = true;                  
                        access_token = jobject["result"]["access_token"].ToObject<string>().ToLower();
                        Settings.Default.AppProperties.LoginToken = jobject["result"]["access_token"].ToObject<string>().ToLower();
                        Settings.Default.Save();
                        GetUser();
                    }
                    return jobject["code"].ToObject<string>().ToLower();

                }
            }
            catch
            {
                return "300";
            }
           
        }

      
        /// <summary>
        /// 登出
        /// </summary>
        /// <param name="uuid"></param>
        public static void Logout(string uuid)
        {
            
            string postBody = $"?deviceSign={uuid}&appId=16";
            HttpWebResponse response = null;
            ServicePointManager.DefaultConnectionLimit = 200;
            HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(RequestHost + LogoutUrl + postBody);
            request.Method = "Post";
            request.Headers.Add("Authorization", $"Bearer {Settings.Default.AppProperties.LoginToken}");
            request.ContentType = "application/x-www-form-urlencoded";
            //request.Accept = "application/vnd.api+json;version=1";
            request.UserAgent = "Apifox/1.0.0 (https://www.apifox.cn)";
            request.Timeout = 20000;
            request.ServicePoint.Expect100Continue = false;
            try
            {
                response = (HttpWebResponse)request.GetResponse();
                using (StreamReader reader = new StreamReader(response.GetResponseStream()))
                {
                    string responseData = reader.ReadToEnd();
                    Console.WriteLine(responseData);
                    reader.Close();
                    JObject jobject = (JObject)JsonConvert.DeserializeObject(responseData);
                    App.IsLogin = false;
                    if (response != null)
                    {
                        response.Close();
                    }
                    if (request != null)
                    {
                        request.Abort();
                    }

                }
            }
            catch
            {
               
            }
           
        }


        /// <summary>
        /// 注销
        /// </summary>
        /// <param name="code"></param>
        /// <returns></returns>
        public static String Usergout(string code)
        {
           
            string postBody = $"?code={code}&appId=16";
            HttpWebResponse response = null;
            ServicePointManager.DefaultConnectionLimit = 200;
            HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(RequestHost + UseroutUrl + postBody);
            request.Method = "Post";
            request.Headers.Add("Authorization", $"Bearer {Settings.Default.AppProperties.LoginToken}");
            request.ContentType = "application/x-www-form-urlencoded";
            //request.Accept = "application/vnd.api+json;version=1";
            request.UserAgent = "Apifox/1.0.0 (https://www.apifox.cn)";
            request.Timeout = 20000;
            request.ServicePoint.Expect100Continue = false;
            try
            {
                response = (HttpWebResponse)request.GetResponse();
                using (StreamReader reader = new StreamReader(response.GetResponseStream()))
                {
                    string responseData = reader.ReadToEnd();
                    Console.WriteLine(responseData);
                    reader.Close();
                    JObject jobject = (JObject)JsonConvert.DeserializeObject(responseData);
                    if (response != null)
                    {
                        response.Close();
                    }
                    if (request != null)
                    {
                        request.Abort();
                    }

                    return jobject["code"].ToObject<string>().ToLower();



                }
            }
            catch
            {
                return "300";
            }
           
        }

        /// <summary>
        /// 重置密码
        /// </summary>
        /// <param name="intemail"></param>
        /// <param name="firstpassword"></param>
        /// <param name="secondPassword"></param>
        /// <param name="intcode"></param>
        /// <returns></returns>
        public static String Rebirth(string intemail, string firstpassword, string secondPassword, string intcode)
        {
          

            HttpWebResponse response = null;
            ServicePointManager.DefaultConnectionLimit = 200;
            HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(RequestHost + RebirthUrl);
            request.Method = "Post";
            request.ContentType = "application/json";
            //request.Accept = "application/vnd.api+json;version=1";
            request.UserAgent = "Apifox/1.0.0 (https://www.apifox.cn)";
            request.Timeout = 20000;
            request.ServicePoint.Expect100Continue = false;
            StringWriter sw = new StringWriter();
            using (JsonWriter writer = new JsonTextWriter(sw))
            {
                writer.WriteStartObject();

                writer.WritePropertyName("account");
                writer.WriteValue(intemail);
                writer.WritePropertyName("appId");
                writer.WriteValue(16);
                writer.WritePropertyName("firstPassword");
                writer.WriteValue(firstpassword);
                writer.WritePropertyName("platformType");
                writer.WriteValue(0);
                writer.WritePropertyName("secondPassword");
                writer.WriteValue(secondPassword);
                writer.WritePropertyName("verifyCode");
                writer.WriteValue(intcode);
                writer.WriteEndObject();
            }
            try
            {
                string postBody = sw.ToString();
            using (StreamWriter writer = new StreamWriter(request.GetRequestStream()))
            {
                writer.Write(postBody);
                writer.Close();
            }
            
                response = (HttpWebResponse)request.GetResponse();
                using (StreamReader reader = new StreamReader(response.GetResponseStream()))
                {
                    string responseData = reader.ReadToEnd();
                    Console.WriteLine(responseData);
                    reader.Close();
                    JObject jobject = (JObject)JsonConvert.DeserializeObject(responseData);
                    if (response != null)
                    {
                        response.Close();
                    }
                    if (request != null)
                    {
                        request.Abort();
                    }
                    return jobject["code"].ToObject<string>().ToLower();


                }

            }
            catch
            {
                return "300";
            }
           
        }
         
    }
}