From 4aadb05cd5718c7d16bf432c96e23ae4e7db4783 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Tue, 21 Jan 2020 01:11:17 +0800
Subject: ...

---
 Timeline/Services/JwtService.cs | 132 ----------------------------------------
 1 file changed, 132 deletions(-)
 delete mode 100644 Timeline/Services/JwtService.cs

(limited to 'Timeline/Services/JwtService.cs')

diff --git a/Timeline/Services/JwtService.cs b/Timeline/Services/JwtService.cs
deleted file mode 100644
index bf92966a..00000000
--- a/Timeline/Services/JwtService.cs
+++ /dev/null
@@ -1,132 +0,0 @@
-using Microsoft.Extensions.Options;
-using Microsoft.IdentityModel.Tokens;
-using System;
-using System.Globalization;
-using System.IdentityModel.Tokens.Jwt;
-using System.Security.Claims;
-using System.Text;
-using Timeline.Configs;
-
-namespace Timeline.Services
-{
-    public class TokenInfo
-    {
-        public long Id { get; set; }
-        public long Version { get; set; }
-    }
-
-    public interface IJwtService
-    {
-        /// <summary>
-        /// Create a JWT token for a given token info.
-        /// </summary>
-        /// <param name="tokenInfo">The info to generate token.</param>
-        /// <param name="expires">The expire time. If null then use current time with offset in config.</param>
-        /// <returns>Return the generated token.</returns>
-        /// <exception cref="ArgumentNullException">Thrown when <paramref name="tokenInfo"/> is null.</exception>
-        string GenerateJwtToken(TokenInfo tokenInfo, DateTime? expires = null);
-
-        /// <summary>
-        /// Verify a JWT token.
-        /// Return null is <paramref name="token"/> is null.
-        /// </summary>
-        /// <param name="token">The token string to verify.</param>
-        /// <returns>Return the saved info in token.</returns>
-        /// <exception cref="ArgumentNullException">Thrown when <paramref name="token"/> is null.</exception>
-        /// <exception cref="JwtVerifyException">Thrown when the token is invalid.</exception>
-        TokenInfo VerifyJwtToken(string token);
-
-    }
-
-    public class JwtService : IJwtService
-    {
-        private const string VersionClaimType = "timeline_version";
-
-        private readonly IOptionsMonitor<JwtConfig> _jwtConfig;
-        private readonly JwtSecurityTokenHandler _tokenHandler = new JwtSecurityTokenHandler();
-        private readonly IClock _clock;
-
-        public JwtService(IOptionsMonitor<JwtConfig> jwtConfig, IClock clock)
-        {
-            _jwtConfig = jwtConfig;
-            _clock = clock;
-        }
-
-        public string GenerateJwtToken(TokenInfo tokenInfo, DateTime? expires = null)
-        {
-            if (tokenInfo == null)
-                throw new ArgumentNullException(nameof(tokenInfo));
-
-            var config = _jwtConfig.CurrentValue;
-
-            var identity = new ClaimsIdentity();
-            identity.AddClaim(new Claim(ClaimTypes.NameIdentifier, tokenInfo.Id.ToString(CultureInfo.InvariantCulture.NumberFormat), ClaimValueTypes.Integer64));
-            identity.AddClaim(new Claim(VersionClaimType, tokenInfo.Version.ToString(CultureInfo.InvariantCulture.NumberFormat), ClaimValueTypes.Integer64));
-
-            var tokenDescriptor = new SecurityTokenDescriptor()
-            {
-                Subject = identity,
-                Issuer = config.Issuer,
-                Audience = config.Audience,
-                SigningCredentials = new SigningCredentials(
-                    new SymmetricSecurityKey(Encoding.ASCII.GetBytes(config.SigningKey)), SecurityAlgorithms.HmacSha384),
-                IssuedAt = _clock.GetCurrentTime(),
-                Expires = expires.GetValueOrDefault(_clock.GetCurrentTime().AddSeconds(config.DefaultExpireOffset)),
-                NotBefore = _clock.GetCurrentTime() // I must explicitly set this or it will use the current time by default and mock is not work in which case test will not pass.
-            };
-
-            var token = _tokenHandler.CreateToken(tokenDescriptor);
-            var tokenString = _tokenHandler.WriteToken(token);
-
-            return tokenString;
-        }
-
-
-        public TokenInfo VerifyJwtToken(string token)
-        {
-            if (token == null)
-                throw new ArgumentNullException(nameof(token));
-
-            var config = _jwtConfig.CurrentValue;
-            try
-            {
-                var principal = _tokenHandler.ValidateToken(token, new TokenValidationParameters
-                {
-                    ValidateIssuer = true,
-                    ValidateAudience = true,
-                    ValidateIssuerSigningKey = true,
-                    ValidateLifetime = true,
-                    ValidIssuer = config.Issuer,
-                    ValidAudience = config.Audience,
-                    IssuerSigningKey = new SymmetricSecurityKey(Encoding.ASCII.GetBytes(config.SigningKey))
-                }, out _);
-
-                var idClaim = principal.FindFirstValue(ClaimTypes.NameIdentifier);
-                if (idClaim == null)
-                    throw new JwtVerifyException(JwtVerifyException.ErrorCodes.NoIdClaim);
-                if (!long.TryParse(idClaim, out var id))
-                    throw new JwtVerifyException(JwtVerifyException.ErrorCodes.IdClaimBadFormat);
-
-                var versionClaim = principal.FindFirstValue(VersionClaimType);
-                if (versionClaim == null)
-                    throw new JwtVerifyException(JwtVerifyException.ErrorCodes.NoVersionClaim);
-                if (!long.TryParse(versionClaim, out var version))
-                    throw new JwtVerifyException(JwtVerifyException.ErrorCodes.VersionClaimBadFormat);
-
-                return new TokenInfo
-                {
-                    Id = id,
-                    Version = version
-                };
-            }
-            catch (SecurityTokenExpiredException e)
-            {
-                throw new JwtVerifyException(e, JwtVerifyException.ErrorCodes.Expired);
-            }
-            catch (Exception e)
-            {
-                throw new JwtVerifyException(e, JwtVerifyException.ErrorCodes.Others);
-            }
-        }
-    }
-}
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