Exemplo n.º 1
0
        /// <summary>
        /// 颁发JWT字符串
        /// </summary>
        /// <param name="tokenModel"></param>
        /// <returns></returns>
        public static string IssueJWT(TokenModelJWT tokenModel)
        {
            var dateTime = DateTime.UtcNow;

            string iss    = Appsettings.app(new string[] { "Audience", "Issuer" });
            string aud    = Appsettings.app(new string[] { "Audience", "Audience" });
            string secret = Appsettings.app(new string[] { "Audience", "Secret" });

            //var claims = new Claim[] //old
            var claims = new List <Claim>
            {
                //下边为Claim的默认配置
                new Claim(JwtRegisteredClaimNames.Jti, tokenModel.Uid.ToString()),
                new Claim(JwtRegisteredClaimNames.Iat, $"{new DateTimeOffset(DateTime.Now).ToUnixTimeSeconds()}"),
                new Claim(JwtRegisteredClaimNames.Nbf, $"{new DateTimeOffset(DateTime.Now).ToUnixTimeSeconds()}"),
                //这个就是过期时间,目前是过期100秒,可自定义,注意JWT有自己的缓冲过期时间
                new Claim(JwtRegisteredClaimNames.Exp, $"{new DateTimeOffset(DateTime.Now.AddSeconds(100)).ToUnixTimeSeconds()}"),
                new Claim(JwtRegisteredClaimNames.Iss, iss),
                new Claim(JwtRegisteredClaimNames.Aud, aud),

                //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
            };

            // 可以将一个用户的多个角色全部赋予;
            // 作者:DX 提供技术支持;
            claims.AddRange(tokenModel.Role.Split(',').Select(s => new Claim(ClaimTypes.Role, s)));



            //秘钥 (SymmetricSecurityKey 对安全性的要求,密钥的长度太短会报出异常)
            var key   = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(secret));
            var creds = new SigningCredentials(key, SecurityAlgorithms.HmacSha256);

            var jwt = new JwtSecurityToken(
                issuer: iss,
                claims: claims,
                signingCredentials: creds);

            var jwtHandler = new JwtSecurityTokenHandler();
            var encodedJwt = jwtHandler.WriteToken(jwt);

            return(encodedJwt);
        }
Exemplo n.º 2
0
        /// <summary>
        ///
        /// </summary>
        /// <param name="httpContext"></param>
        /// <returns></returns>
        public Task Invoke(HttpContext httpContext)
        {
            PreProceed(httpContext);


            //检测是否包含'Authorization'请求头
            if (!httpContext.Request.Headers.ContainsKey("Authorization"))
            {
                PostProceed(httpContext);

                return(_next(httpContext));
            }
            //var tokenHeader = httpContext.Request.Headers["Authorization"].ToString();
            var tokenHeader = httpContext.Request.Headers["Authorization"].ToString().Replace("Bearer ", "");

            try
            {
                if (tokenHeader.Length >= 128)
                {
                    TokenModelJWT tm = JwtHelper.SerializeJWT(tokenHeader);

                    //授权
                    var claimList = new List <Claim>();
                    var claim     = new Claim(ClaimTypes.Role, tm.Role);
                    claimList.Add(claim);
                    var identity  = new ClaimsIdentity(claimList);
                    var principal = new ClaimsPrincipal(identity);
                    httpContext.User = principal;
                }
            }
            catch (Exception e)
            {
                Console.WriteLine($"{DateTime.Now} middleware wrong:{e.Message}");
            }


            PostProceed(httpContext);


            return(_next(httpContext));
        }
Exemplo n.º 3
0
        /// <summary>
        /// 解析
        /// </summary>
        /// <param name="jwtStr"></param>
        /// <returns></returns>
        public static TokenModelJWT SerializeJWT(string jwtStr)
        {
            var jwtHandler            = new JwtSecurityTokenHandler();
            JwtSecurityToken jwtToken = jwtHandler.ReadJwtToken(jwtStr);
            object           role     = new object();;

            try
            {
                jwtToken.Payload.TryGetValue(ClaimTypes.Role, out role);
            }
            catch (Exception e)
            {
                Console.WriteLine(e);
                throw;
            }
            var tm = new TokenModelJWT
            {
                Uid  = Convert.ToInt32(jwtToken.Id),
                Role = role != null?role.ToString() : "",
            };

            return(tm);
        }