asp.net – 没有配置验证处理程序来处理方案：自动

我更新了ASP.NET 5框架beta-8包与RC在以前工作的应用程序。在我运行下一个错误发生在启动过程中：

InvalidOperationException: No authentication handler is configured to handle the scheme: Automatic
Microsoft.AspNet.Http.Authentication.Internal.DefaultAuthenticationManager.d__12.MoveNext()

var defaultPolicy =
    new AuthorizationPolicyBuilder()
    .RequireAuthenticatedUser()
    .Build();

services.AddMvc(setup =>
{
    setup.Filters.Add(new AuthorizeFilter(defaultPolicy)); // Error occurs here
});

如果有人遇到类似的问题，我会感谢您的想法或解决方案可能出错了。此异常的解释也是值得赞赏的。

Startup.cs

using Autofac;
using Autofac.Extensions.DependencyInjection;
using Microsoft.AspNet.Authorization;
using Microsoft.AspNet.Builder;
using Microsoft.AspNet.Hosting;
using Microsoft.AspNet.Http;
using Microsoft.AspNet.Mvc.Filters;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.PlatformAbstractions;
using SuperUserMVC.Configuration;
using SuperUserMVC.Extensions;
using SuperUserMVC.GlobalModules;
using System;

namespace SuperUserMVC
{
    public class Startup
    {
        public IConfigurationRoot Configuration { get; set; }

        // Entry point for the application.
        public static void Main(string[] args) => WebApplication.Run<Startup>(args);

        public Startup(IHostingEnvironment env,IApplicationEnvironment appEnv)
        {
            var builder = new ConfigurationBuilder()
                .SetBasePath(appEnv.ApplicationBasePath)
                .AddJsonFile("appsettings.json");

            Configuration = builder.Build();
        }

        public IServiceProvider ConfigureServices(IServiceCollection services)
        {
            services.Configure<AppSettingsBase>(Configuration.GetSection("AppSettingsBase"));
            services.Configure<ConnectionString>(Configuration.GetSection("ConnectionString"));

            services.AddSqlServerCache(cache =>
            {
                cache.ConnectionString = Configuration.Get<string>("ASPState:ConnectionString");
                cache.SchemaName = Configuration.Get<string>("ASPState:Schema");
                cache.TableName = Configuration.Get<string>("ASPState:Table");
            });

            services.AddSession(session =>
            {
                session.IdleTimeout = TimeSpan.FromMinutes(120);
            });

            // Only allow authenticated users.
            var defaultPolicy = new AuthorizationPolicyBuilder()
                .RequireAuthenticatedUser()
                .Build();

            // Add MVC services to the services container.
            services.AddMvc(setup =>
            {
                setup.Filters.Add(new AuthorizeFilter(defaultPolicy));
            });

            var builder = new ContainerBuilder();
            builder.RegisterModule(new AutofacModule());
            builder.Populate(services);

            var container = builder.Build();

            return container.Resolve<IServiceProvider>();
        }

        public void Configure(IApplicationBuilder app,IHttpContextAccessor httpContextAccessor)
        {
            // Catch unhandled exception in pipeline.
            bool isProductionEnvironment = Configuration.Get<bool>("environmentVariables:isProductionEnvironment");
            app.UseCustomUnhandledException(isProductionEnvironment,Configuration.Get<string>("defaultErrorPagePath"));

            // Log requests.
            app.UseVisitLogger(isProductionEnvironment);

            // Session must be used before MVC routes.
            app.UseSession();

            // Configure the HTTP request pipeline.
            app.UseCookieAuthentication(options =>
            {
                options.AuthenticationScheme = "Cookies";
                options.LoginPath = new PathString("/Account/Login/");
                options.AccessDeniedPath = new PathString("/Account/Forbidden/");
                options.CookieName = "MyCookie";
                options.AutomaticAuthenticate = true;
                options.SessionStore = new MemoryCacheSessionStore();
            });

            AutoMapperInitializer.Init();
            app.UseStaticFiles();

            // Route configuration.
            app.UseMvc(routes =>
            {
                routes.MapRoute(
                    name: "AreaDefault",template: "{area:exists=Demo}/{controller=Home}/{action=Index}/{id?}"
                );

                routes.MapRoute(
                    name: "Default",template: "{controller=Home}/{action=Index}/{id?}"
                );
            });
        }
    }
}

解决方法

options.AutomaticAuthentication被分为options.AutomaticAuthenticate和options.AutomaticChallenge。如果最后一个值为false，则抛出异常，因为没有验证中间件处理授权过滤器应用的挑战。

（编辑：安卓应用网）

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