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添加项目文件。
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125
CoreCms.Net.Auth/OverWrite/JwtHelper.cs
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125
CoreCms.Net.Auth/OverWrite/JwtHelper.cs
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/***********************************************************************
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* Project: CoreCms
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* ProjectName: 核心内容管理系统
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* Web: https://www.corecms.net
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* Author: 大灰灰
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* Email: jianweie@163.com
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* CreateTime: 2021/1/31 21:45:10
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* Description: 暂无
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***********************************************************************/
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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 CoreCms.Net.Configuration;
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using CoreCms.Net.Utility.Extensions;
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using Microsoft.IdentityModel.Tokens;
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namespace CoreCms.Net.Auth.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 = AppSettingsConstVars.JwtConfigIssuer;
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string aud = AppSettingsConstVars.JwtConfigAudience;
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string secret = AppSettingsConstVars.JwtConfigSecretKey;
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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, $"{new DateTimeOffset(DateTime.Now).ToUnixTimeSeconds()}"),
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new Claim(JwtRegisteredClaimNames.Nbf,$"{new DateTimeOffset(DateTime.Now).ToUnixTimeSeconds()}") ,
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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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JwtSecurityToken jwtToken = jwtHandler.ReadJwtToken(jwtStr);
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object role;
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try
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{
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jwtToken.Payload.TryGetValue(ClaimTypes.Role, out role);
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}
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catch (Exception e)
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{
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Console.WriteLine(e);
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throw;
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}
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var tm = new TokenModelJwt
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{
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Uid = (jwtToken.Id).ObjectToInt(),
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Role = role != null ? role.ObjectToString() : ""
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};
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return tm;
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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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