using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

using System;

using System.Collections.Generic;

using System.Linq;

using System.Security.Cryptography;

using System.Text;

namespace DingDangSDK

{

    public class DingdangUserRetriever

    {

        private String token;

        private String publicKey;

        public DingdangUserRetriever(String token, String publicKey)

        {

            this.token = token;

            this.publicKey = publicKey;

        }

        public User retrieve(bool verify)

        {

            string result = decode(verify);

            User user = JsonConvert.DeserializeObject<User>(result);

            return user;

        }

        public static readonly DateTime UnixEpoch = new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);

        public static void Validate(string payloadJson)

        {

           JObject payloadData = (JObject)JsonConvert.DeserializeObject(payloadJson);//解析json

            var now = DateTime.UtcNow;

            var secondsSinceEpoch = Math.Round((now - UnixEpoch).TotalSeconds);

            // verify exp claim https://tools.ietf.org/html/draft-ietf-oauth-json-web-token-32#section-4.1.4

            JToken expObj;

            if (payloadData.TryGetValue("exp", out expObj))

            {

                if (expObj == null)

                {

                    //throw new SignatureVerificationException("Claim 'exp' must be a number.");

                    throw new Exception("Claim 'exp' must be a number.");

                }

                double expValue;

                try

                {

                    expValue = Convert.ToDouble(expObj);

                }

                catch

                {

                    //throw new SignatureVerificationException("Claim 'exp' must be a number.");

                    throw new Exception("Claim 'exp' must be a number.");

                }

                if (secondsSinceEpoch >= expValue)

                {

                    //throw new TokenExpiredException("Token has expired.")

                    //{

                    //    Expiration = UnixEpoch.AddSeconds(expValue),

                    //    PayloadData = payloadData

                    //};

                    throw new Exception("Token has expired.");

                }

            }

            JToken nbfObj;

            if (payloadData.TryGetValue("nbf", out nbfObj))

            {

                if (nbfObj == null)

                {

                    //throw new SignatureVerificationException("Claim 'nbf' must be a number.");

                    throw new Exception("Claim 'nbf' must be a number.");

                }

                double nbfValue;

                try

                {

                    nbfValue = Convert.ToDouble(nbfObj);

                }

                catch

                {

                    throw new Exception("Claim 'nbf' must be a number.");

                }

                if (secondsSinceEpoch < nbfValue)

                {

                    throw new Exception("Token is not yet valid.");

                }

            }

        }

        /// <summary>

        ///

        /// </summary>

        /// <returns></returns>

        public string decode(bool verify)

        {

            try

            {

                JObject obj = (JObject)JsonConvert.DeserializeObject(publicKey);

                string[] tokenParts = token.Split('.');

                RSACryptoServiceProvider rsa = new RSACryptoServiceProvider();

                rsa.ImportParameters(

                  new RSAParameters()

                  {

                      Modulus = FromBase64Url(obj["n"].ToString()),

                      Exponent = FromBase64Url("AQAB")

                  });

                SHA256 sha256 = SHA256.Create();

                byte[] hash = sha256.ComputeHash(Encoding.UTF8.GetBytes(tokenParts[0] + '.' + tokenParts[1]));

                RSAPKCS1SignatureDeformatter rsaDeformatter = new RSAPKCS1SignatureDeformatter(rsa);

                rsaDeformatter.SetHashAlgorithm("SHA256");

                if (rsaDeformatter.VerifySignature(hash, FromBase64Url(tokenParts[2])))

                {

                    string result = Encoding.UTF8.GetString(Base64UrlDecode(tokenParts[1]));

                    if (verify)

                    {

                        Validate(result);

                    }

                    return result;

                }

                else

                {

                    return null;

                }

            }

            catch (Exception)

            {

                throw;

            }

        }

        private static string Base64UrlEncode(byte[] input)

        {

            var output = Convert.ToBase64String(input);

            output = output.Split('=')[0]; // Remove any trailing '='s

            output = output.Replace('+', '-'); // 62nd char of encoding

            output = output.Replace('/', '_'); // 63rd char of encoding

            return output;

        }

        // from JWT spec

        private static byte[] Base64UrlDecode(string input)

        {

            var output = input;

            output = output.Replace('-', '+');

            output = output.Replace('_', '/');

            switch (output.Length % 4)

            {

                case 0: break; // No pad chars in this case

                case 1: output += "==="; break; // Three pad chars

                case 2: output += "=="; break; // Two pad chars

                case 3: output += "="; break; // One pad char

                default: throw new System.Exception("Illegal base64url string!");

            }

            var converted = Convert.FromBase64String(output); // Standard base64 decoder

            return converted;

        }

        static byte[] FromBase64Url(string base64Url)

        {

            string padded = base64Url.Length % 4 == 0

                ? base64Url : base64Url + "====".Substring(base64Url.Length % 4);

            string base64 = padded.Replace("_", "/")

                                  .Replace("-", "+");

            return Convert.FromBase64String(base64);

        }

    }

    public class User

    {

        public String aud { set; get; }

        public String userId { set; get; }

        public String name { set; get; }

        public String email { set; get; }

        public String openId { set; get; }

        public String mobile { set; get; }

        public String exp { set; get; }

        public String jti { set; get; }

        public String iat { set; get; }

        public String nbf { set; get; }

        public String sub { set; get; }

        public override String ToString()

        {

            return "Username{" +

                    "aud='" + aud + '\'' +

                    ", userId='" + userId + '\'' +

                    ", name='" + name + '\'' +

                    ", email='" + email + '\'' +

                    ", openId='" + openId + '\'' +

                    ", mobile='" + mobile + '\'' +

                    ", exp='" + exp + '\'' +

                    ", jti='" + jti + '\'' +

                    ", nbf='" + nbf + '\'' +

                    ", sub='" + sub + '\'' +

                    '}';

        }

    }

}

using System;

using System.Collections.Generic;

using System.Windows.Forms;

using System.IO;

namespace AutoUpdate

{

    static class Program

    {

        /// <summary>

        /// 应用程序的主入口点。

        /// </summary>

        [STAThread]

        static void Main(string[] args)

        {

            string username;

            File.AppendAllText("g:\\log.txt", args[0]+"\r\n");

            string id_token = args[0].Substring(20);

            //string id_token = "eyJhbGciOiJSUzI1NiIsImtpZCI6IjY1Mzk2NjA3MTQ3ODA5MzY3MzYifQ.eyJlbWFpbCI6IjI2MDI2MyIsIm5hbWUiOiIyNjAyNjMiLCJleHAiOjE1MDY1NjkzMDAsImp0aSI6IjhqakVBRkd0NFo5ZnZNV2JTTWNvVVEiLCJpYXQiOjE1MDY1Njg3MDAsIm5iZiI6MTUwNjU2ODY0MCwic3ViIjoiMjYwMjYzIn0.OwaxyfRiHzgfzsHWHa1I4n5EeTswD1yeh2xHOjWPOt27qXm9Lh2zGLqgfniQU1nZxW7u2FMvESv8oTAq8MFhPX9Jy5LlaU4yfr1HwPS5K_os0oYZpscXqrL4-6OJcQeE0I6AC9ymB5InonDQCQEMuOaijn3VhNpIu4BnJomppcb5IBWJS3VHfJnDxT9JBOf_XRuvS_l1F4BK8nDW7G2QMHMH54-7WarOnFD3DWKexSLNANW_Po458zbI7sYthrft9MnRIk8ctB75ofSUbGjQAjI9b95jYdTKwa9Mu2z3TBNBJXzYe5_WztHgMLfS66IRbEIx0ah2QCZTbK6iTtXEDw";

            string publickey = "{\"kty\":\"RSA\",\"kid\":\"6057314195784354233\",\"alg\":\"ES256\",\"n\":\"n7d5K4m_mtYva7fb8x7AQWPQe95fu1LYkxLFlJQOwV-mC2yibqtEC-Tu2hLlSZYloJfDn9ELsGvOwXOkU8ktcvZvxIvnb1tN2rifDyxQfsNf90tt-IglKukVSGBZqM_EI3DHPh6lqmu3LLSvBPKdTAuo2a88vnASv5HDfyjT-9LhHpB4_2_XmI0O8_5sD-gaxlR7DTJ6tRWg7vKnu6gCC3HgG4MsyZZR5TNapUA9rMTrXNQJThrSdjxIVhcSF_XNYVagpt-01h6DvV2pzdNU06Q3p0172BhzFFCOM1gSRi__St9Rgtp1Ax--GxY9UR543ZIA9kTG7cvEIz82Ibx7Vw\",\"e\":\"AQAB\"}";

            DingDangSDK.DingdangUserRetriever retriever = new DingDangSDK.DingdangUserRetriever(id_token, publickey);

            DingDangSDK.User user = null;

            //2.获取用户信息

            user = retriever.retrieve(false);

            username = user.name;

            MessageBox.Show(username);

            Application.EnableVisualStyles();

            Application.SetCompatibleTextRenderingDefault(false);

            AppSingleton.Run(new login(args));  //防止对应用程序进行多次实际化

        }

    }

}

http://10.10.6.18:8023/COA.aspx?id_token=eyJhbGciOiJSUzI1NiIsImtpZCI6Ijg0NzE1ODg1MTQ5NjgwNjA2MjYifQ.eyJlbWFpbCI6IndhbnFxIiwibmFtZSI6IndhbnFxIiwiZXhwIjoxNTA4MzE4ODMwLCJqdGkiOiJnNVpSbkllc2tNOEZSSjRvRlRSZm9BIiwiaWF0IjoxNTA4MzE4MjMwLCJuYmYiOjE1MDgzMTgxNzAsInN1YiI6IndhbnFxIn0.I1DLYYXJ_PwcTbCrRM0UpQtqLuXrqy5xJol6kuuyQBNQFh57swJj_htkBSf1iRajxG8Oo0Azhq-yTajnxkmvFxrv29jKfYV4Vvk53FPqz2zC9VMI5FNE9dbfdFyAkFibBo-vNmH96j5I8uz19rwJiC3xFwf-4r5bUUeL9vGdCgfemU9Z9xmbKS7gRpS3A7heyZExzHnQyhab0PEFSzED1v1rWVPUR9Wv99xkIaGRBUiuYchGY4kIhaw5SpHP091tZJGMhDjcJDq__cC6FPM-q2hH_vCxBTFHZ7KyQbdz_P3ay3h6zsWEz8ErAdEsBcH_yqdpZF5arKjNqTMzyrGXFQ

   public void Tylogin() {

        string id_token = "";

        string publickey = "{\"kty\":\"RSA\",\"kid\":\"8471588514968060626\",\"alg\":\"ES256\",\"n\":\"4Qa6W-PES5g_STkS2Z4md_XG1UhZUq9JJeMTOC5Yg4RkqULREGj97n6ON-2iWsUl1hlbzzU0n-4l2LZJUrOT0xeaunbo7WOkCiGEwrbpVhvY7fHCi_d4LViJpFZDPIX7h8a_CMjqMSyTesp5SbK7JDzL324g-YsciZV2y8pJeYHgIoauKd6OuOtl5noBOBgz_WrZDkEr6P5TE8_F7TV0CBXWfFSwBSvof7YaVdwOOFFFYrUZVBbqvG5uFreji-V-d2diMgWMaUT3hPBQ7fDY0RE5p5xbqZvYQwgUNVIAmOiHRBB98Mlu-EU-iAHSADYWWp3x6BF0KdojiR34Mb8upw\",\"e\":\"AQAB\"}";

        if (Request.QueryString["id_token"] != null)

        {

            id_token = Request.QueryString["id_token"].ToString();

        }

        //具体类在Contorls对象中，Contorls对象中添加Newtonsoft.json.dll引用

        DdLogin.DingdangUserRetriever c = new DdLogin.DingdangUserRetriever(id_token, publickey);

        DdLogin.User Employeeinfo = null;

        Employeeinfo = c.retrieve(false);

        //去掉登录首页直接登录。具体业务逻辑还的重新做

        string name = Employeeinfo.name;

            Response.Write("用户名:"