Asp.Net Core添加请求头自定义认证的示例_实用技巧_

 public class HeaderAuth : IAuthenticationHandler { public AuthenticationScheme Scheme { get; private set; } public HttpContext CurrentContext { get; private set; } public Task AuthenticateAsync() { var token = CurrentContext.Request.Headers[GuidToken.GUID_TOKEN_KEY].ToString(); var (isValid, tokenEntity) = GuidToken.Valid(token); if (!isValid || tokenEntity == null) { return Task.FromResult(AuthenticateResult.Fail("未登录或授权已过期。")); } // 生成 AuthenticationTicket AuthenticationTicket ticket = new AuthenticationTicket(tokenEntity.ToClaimsPrincipal(), Scheme.Name); return Task.FromResult(AuthenticateResult.Success(ticket)); } public Task ChallengeAsync(AuthenticationProperties properties) { CurrentContext.Response.StatusCode = (int)HttpStatusCode.Unauthorized; return Task.CompletedTask; } public Task ForbidAsync(AuthenticationProperties properties) { CurrentContext.Response.StatusCode = (int)HttpStatusCode.Forbidden; return Task.CompletedTask; } public Task InitializeAsync(AuthenticationScheme scheme, HttpContext context) { Scheme = scheme; CurrentContext = context; return Task.CompletedTask; } }

 public class GuidToken { public const string GUID_TOKEN_NAME = "MtGuidTokenAuthentication"; public const string DEFAULT_AUTHENTICATION_TYPE = "local"; public const int TOKEN_LENGTH = 32; public const string GUEST = "GUEST"; public const string DEFAULT_ROLE = "USER"; public const string DEFAULT_OPENID = "DEFAULT_OPENID"; public const string GUID_TOKEN_KEY = "Token"; private static int expireDuration = 0; public string OpenId { get; set; } public string Role { get; set; } public DateTime Expire { get; set; } private static readonly Dictionary tokenCache = new Dictionary(); public static (bool, GuidToken) Valid(string token) { if (string.IsNullOrEmpty(token) || token.Length != TOKEN_LENGTH) { return (false, null); } // 从 Session 中获取令牌实体 GuidToken tokenEntity = GetTokenCache(); if (tokenEntity == null) { return (false, null); } else { tokenEntity.Expire = DateTime.Now.AddMinutes(expireDuration); } return (true, tokenEntity); GuidToken GetTokenCache() { if (tokenCache.TryGetValue(token, out var val)) { if (val.Expire > DateTime.Now) return val; else tokenCache.Remove(token); } return null; } } public static string Create(string openId = DEFAULT_OPENID, string role = DEFAULT_ROLE, int minutes = 30) { var token = Guid.NewGuid().ToString("N"); expireDuration = minutes; var entity = new GuidToken { OpenId = openId, Role = role, Expire = DateTime.Now.AddMinutes(expireDuration) }; tokenCache.Add(token, entity); return token; } /// 
 /// 令牌实体 转 ClaimsPrincipal /// 
 ///  ///  public ClaimsPrincipal ToClaimsPrincipal() { var claimsIdentity = new ClaimsIdentity(new Claim[] { new Claim(ClaimTypes.Name, OpenId), new Claim(ClaimTypes.Role, Role), }, GuidToken.DEFAULT_AUTHENTICATION_TYPE); var claimsPrincipal = new ClaimsPrincipal(claimsIdentity); return claimsPrincipal; } }

 public void ConfigureServices(IServiceCollection services) { // 注册使用 services.AddAuthentication(options => { options.AddScheme(GuidToken.GUID_TOKEN_NAME, "Default Guid Token"); options.DefaultAuthenticateScheme = GuidToken.GUID_TOKEN_NAME; options.DefaultChallengeScheme = GuidToken.GUID_TOKEN_NAME; }); } public void Configure(IApplicationBuilder app, IWebHostEnvironment env) { if (env.IsDevelopment()) { app.UseDeveloperExceptionPage(); } app.UseCors("any"); app.UseStaticFiles(); // 开启认证 app.UseAuthentication(); app.UseRouting(); // 开启授权 app.UseAuthorization(); app.UseEndpoints(endpoints => { endpoints.MapControllers(); }); }

 [Authorize] public class JobController : ControllerBase {}