112 lines
4.7 KiB
C#
112 lines
4.7 KiB
C#
using Microsoft.Extensions.Configuration;
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using Microsoft.IdentityModel.Tokens;
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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.Security.Claims;
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using System.Text;
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using YD_WeChatApplet.Commons;
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using YD_WeChatApplet.Commons.Utils;
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namespace YD_WeChatApplet.Api.Utilities
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{
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public class JwtHelper
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{
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/// <summary>
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/// 生成JWT
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/// </summary>
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/// <param name="serInfo"></param>
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/// <returns></returns>
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public static string IssueJwt(UserInfoDto userInfo)
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{
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string exp = $"{new DateTimeOffset(DateTime.Now.AddMinutes(Convert.ToInt32(AppSettings.ExpMinutes))).ToUnixTimeSeconds()}";
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var claims = new List<Claim>
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{
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//new Claim(ClaimTypes.Role,userInfo.Role_Id ),
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new Claim(JwtRegisteredClaimNames.Sid,userInfo.SchoolCode.ToString()??""),
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new Claim(JwtRegisteredClaimNames.Typ,userInfo.Role_Id.ToString() ??""),
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new Claim(JwtRegisteredClaimNames.Jti,userInfo.User_Id.ToString()??""),
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new Claim(JwtRegisteredClaimNames.Nickname,userInfo.UserTrueName??""),
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new Claim(JwtRegisteredClaimNames.Name,userInfo.UserName??""),
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new Claim(JwtRegisteredClaimNames.PhoneNumber,userInfo.PhoneNo??""),
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new Claim(JwtRegisteredClaimNames.Azp,userInfo.UserNo??""),
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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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//JWT过期时间
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//验证是否过期 从User读取过期 时间，再将时间戳转换成日期，如果时间在半个小时内即将过期，通知前台刷新JWT
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//int val= HttpContext.User.Claims.Where(x => x.Type == JwtRegisteredClaimNames.Exp).FirstOrDefault().Value;
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//new DateTime(621355968000000000 + (long)val* (long)10000000, DateTimeKind.Utc).ToLocalTime()
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//默认设置jwt过期时间120分钟
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new Claim (JwtRegisteredClaimNames.Exp,exp),
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new Claim(JwtRegisteredClaimNames.Iss,AppSettings.Secret.Issuer),
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new Claim(JwtRegisteredClaimNames.Aud,AppSettings.Secret.Audience),
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};
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//秘钥16位
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var key = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(AppSettings.Secret.JWT));
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var creds = new SigningCredentials(key, SecurityAlgorithms.HmacSha256);
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JwtSecurityToken securityToken = new JwtSecurityToken(issuer: AppSettings.Secret.Issuer, claims: claims, signingCredentials: creds);
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string jwt = new JwtSecurityTokenHandler().WriteToken(securityToken);
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return jwt;
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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 UserInfoDto 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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UserInfoDto userInfo = new UserInfoDto
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{
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User_Id = Convert.ToInt32(jwtToken.Payload["jti"]),
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Role_Id = Convert.ToInt32(jwtToken.Payload["typ"]),
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UserName = jwtToken.Payload["name"]?.ToString(),
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PhoneNo = jwtToken.Payload["phone_number"]?.ToString(),
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SchoolCode = jwtToken.Payload["sid"]?.ToString(),
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UserTrueName = jwtToken.Payload["nickname"]?.ToString(),
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UserNo = jwtToken.Payload["azp"]?.ToString(),
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};
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return userInfo;
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}
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/// <summary>
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/// 获取过期时间
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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 DateTime GetExp(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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DateTime expDate = (jwtToken.Payload[JwtRegisteredClaimNames.Exp] ?? 0).GetInt().GetTimeSpmpToDate();
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return expDate;
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}
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public static bool IsExp(string jwtStr)
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{
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return GetExp(jwtStr) < DateTime.Now;
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}
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public static int GetUserId(string jwtStr)
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{
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try
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{
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if (jwtStr.IsNullOrEmpty()) return 0;
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jwtStr = jwtStr.Replace("Bearer ", "");
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return new JwtSecurityTokenHandler().ReadJwtToken(jwtStr).Id.GetInt();
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}
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catch
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{
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return 0;
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}
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}
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}
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}
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