133 lines
5.0 KiB
C#
133 lines
5.0 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IdentityModel.Tokens.Jwt;
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using System.Linq;
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using System.Security.Claims;
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using System.Text;
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using DouyinApi.Common;
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using DouyinApi.Common.AppConfig;
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using Microsoft.IdentityModel.Tokens;
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namespace DouyinApi.AuthHelper.OverWrite
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{
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public class JwtHelper
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{
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/// <summary>
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/// 颁发JWT字符串
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/// </summary>
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/// <param name="tokenModel"></param>
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/// <returns></returns>
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public static string IssueJwt(TokenModelJwt tokenModel)
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{
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string iss = AppSettings.app(new string[] { "Audience", "Issuer" });
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string aud = AppSettings.app(new string[] { "Audience", "Audience" });
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string secret = AppSecretConfig.Audience_Secret_String;
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//var claims = new Claim[] //old
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var claims = new List<Claim>
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{
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/*
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* 特别重要：
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1、这里将用户的部分信息，比如 uid 存到了Claim 中，如果你想知道如何在其他地方将这个 uid从 Token 中取出来，请看下边的SerializeJwt() 方法，或者在整个解决方案，搜索这个方法，看哪里使用了！
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2、你也可以研究下 HttpContext.User.Claims ，具体的你可以看看 Policys/PermissionHandler.cs 类中是如何使用的。
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*/
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new Claim(JwtRegisteredClaimNames.Jti, tokenModel.Uid.ToString()),
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new Claim(JwtRegisteredClaimNames.Iat, $"{DateTime.Now.DateToTimeStamp()}"),
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new Claim(JwtRegisteredClaimNames.Nbf,$"{DateTime.Now.DateToTimeStamp()}") ,
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//这个就是过期时间，目前是过期1000秒，可自定义，注意JWT有自己的缓冲过期时间
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new Claim (JwtRegisteredClaimNames.Exp,$"{new DateTimeOffset(DateTime.Now.AddSeconds(1000)).ToUnixTimeSeconds()}"),
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new Claim(ClaimTypes.Expiration, DateTime.Now.AddSeconds(1000).ToString()),
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new Claim(JwtRegisteredClaimNames.Iss,iss),
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new Claim(JwtRegisteredClaimNames.Aud,aud),
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//new Claim(ClaimTypes.Role,tokenModel.Role),//为了解决一个用户多个角色(比如：Admin,System)，用下边的方法
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};
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// 可以将一个用户的多个角色全部赋予；
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// 作者：DX 提供技术支持；
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claims.AddRange(tokenModel.Role.Split(',').Select(s => new Claim(ClaimTypes.Role, s)));
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//秘钥 (SymmetricSecurityKey 对安全性的要求，密钥的长度太短会报出异常)
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var key = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(secret));
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var creds = new SigningCredentials(key, SecurityAlgorithms.HmacSha256);
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var jwt = new JwtSecurityToken(
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issuer: iss,
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claims: claims,
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signingCredentials: creds);
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var jwtHandler = new JwtSecurityTokenHandler();
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var encodedJwt = jwtHandler.WriteToken(jwt);
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return encodedJwt;
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}
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/// <summary>
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/// 解析
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/// </summary>
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/// <param name="jwtStr"></param>
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/// <returns></returns>
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public static TokenModelJwt SerializeJwt(string jwtStr)
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{
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var jwtHandler = new JwtSecurityTokenHandler();
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TokenModelJwt tokenModelJwt = new TokenModelJwt();
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// token校验
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if (jwtStr.IsNotEmptyOrNull() && jwtHandler.CanReadToken(jwtStr))
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{
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JwtSecurityToken jwtToken = jwtHandler.ReadJwtToken(jwtStr);
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object role;
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jwtToken.Payload.TryGetValue(ClaimTypes.Role, out role);
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tokenModelJwt = new TokenModelJwt
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{
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Uid = (jwtToken.Id).ObjToLong(),
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Role = role != null ? role.ObjToString() : "",
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};
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}
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return tokenModelJwt;
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}
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public static bool customSafeVerify(string token)
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{
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var jwtHandler = new JwtSecurityTokenHandler();
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var symmetricKeyAsBase64 = AppSecretConfig.Audience_Secret_String;
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var keyByteArray = Encoding.ASCII.GetBytes(symmetricKeyAsBase64);
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var signingKey = new SymmetricSecurityKey(keyByteArray);
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var signingCredentials = new SigningCredentials(signingKey, SecurityAlgorithms.HmacSha256);
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var jwt = jwtHandler.ReadJwtToken(token);
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return jwt.RawSignature == Microsoft.IdentityModel.JsonWebTokens.JwtTokenUtilities.CreateEncodedSignature(jwt.RawHeader + "." + jwt.RawPayload, signingCredentials);
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}
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}
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/// <summary>
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/// 令牌
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/// </summary>
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public class TokenModelJwt
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{
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/// <summary>
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/// Id
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/// </summary>
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public long Uid { get; set; }
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/// <summary>
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/// 角色
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/// </summary>
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public string Role { get; set; }
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/// <summary>
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/// 职能
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/// </summary>
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public string Work { get; set; }
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}
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}
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