Account.Filters.CustomAuthenticationFilter.AuthenticateAsync C# (CSharp) Method

        public async Task AuthenticateAsync(HttpAuthenticationContext context, CancellationToken cancellationToken)
        {
            var principal = await this.AuthenticateAsync(context.Request);
            if (principal == null)
            {
                context.Request.Headers.GetCookies().Clear();
                context.ErrorResult = new AuthenticationFailureResult("未授权请求", context.Request);
            }
            else
            {
                context.Principal = principal;
            }
        }