asp.net-web-api – 使用带有ASP.Net标识的Autofac将Application

var x = new DatabaseContext();
    var store = new UserStore<ApplicationUser>(x);
    var options = new IdentityFactoryOptions<ApplicationUserManager>()
    {
        DataProtectionProvider = new Microsoft.Owin.Security.DataProtection.DpapiDataProtectionProvider("ApplicationName")
    };

    builder.Register<DatabaseContext>(c => x);
    builder.Register<UserStore<ApplicationUser>>(c => store).AsImplementedInterfaces();
    builder.Register<IdentityFactoryOptions<ApplicationUserManager>>(c => options);
    builder.RegisterType<ApplicationUserManager>();

    builder.Register<ApplicationOAuthProvider>(c => new ApplicationOAuthProvider("self",new ApplicationUserManager(store,options))).As<IOAuthAuthorizationServerProvider>();

OAuthOptions = new OAuthAuthorizationServerOptions
        {
            TokenEndpointPath = new PathString("/Token"),Provider = (IOAuthAuthorizationServerProvider)GlobalConfiguration.Configuration.DependencyResolver.GetService(typeof(IOAuthAuthorizationServerProvider)),AuthorizeEndpointPath = new PathString("/api/Account/ExternalLogin"),AccessTokenExpireTimeSpan = TimeSpan.FromDays(14),AllowInsecureHttp = true
        };

我终于找到了解决方案
第一个解决方
第一：更改你的bootstrap autofac类
你应该添加singleInstance();避免Per-Request Dependencies错误[没有标记匹配的范围’AutofacWebRequest’]

builder.RegisterType<DatabaseContext>().AsSelf().SingleInstance();
   builder.Register<IdentityFactoryOptions<ApplicationUserManager>>(c => new IdentityFactoryOptions<ApplicationUserManager>() { DataProtectionProvider = new DpapiDataProtectionProvider("your app name") });
   builder.RegisterType<ApplicationUserManager>().AsSelf().SingleInstance();
   // to resolve applicationUserManager  
   builder.Register(c=>new ApplicationOAuthProvider(c.Resolve<ApplicationUserManager>())).AsImplementedInterfaces().SingleInstance();
   builder.Register(c => new UserStore<ApplicationUser>(c.Resolve<DatabaseContext>())).AsImplementedInterfaces().SingleInstance();
   builder.Register(c => HttpContext.Current.GetOwinContext().Authentication).As<IAuthenticationManager>();

第二：在Startup.cs中
将删除GlobalConfiguration.configuration.DependencyResolver,因为它总是给null.所以我将使用autofac容器解析器但应该从lifetimescope使用它,这个容器从你的bootstrap autofac配置方法返回

OAuthOptions = new OAuthAuthorizationServerOptions
    {
        TokenEndpointPath = new PathString("/Token"),Provider = container.BeginLifetimeScope().Resolve<IOAuthAuthorizationServerProvider>(),AllowInsecureHttp = true
    };

第三：在你的ApplicationOAuthProvider类中将添加构造函数取applicationUserManager作为参数

这个修复我的null错误后两天谷歌搜索,无法找到答案,希望它有所帮助.

第二个解决方案：因为SingleInstance()不适合企业应用程序,所以你可以使用InstancePerRequest();对于所有registerTypes

builder.RegisterType<DatabaseContext>().AsSelf().InstancePerRequest();
   builder.Register<IdentityFactoryOptions<ApplicationUserManager>>(c => new IdentityFactoryOptions<ApplicationUserManager>() { DataProtectionProvider = new DpapiDataProtectionProvider("your app name") });
   builder.RegisterType<ApplicationUserManager>().AsSelf().InstancePerRequest();
   // to resolve applicationUserManager  
   builder.Register(c=>new ApplicationOAuthProvider(c.Resolve<ApplicationUserManager>())).AsImplementedInterfaces().InstancePerRequest();
   builder.Register(c => new UserStore<ApplicationUser>(c.Resolve<DatabaseContext>())).AsImplementedInterfaces().InstancePerRequest();
   builder.Register(c => HttpContext.Current.GetOwinContext().Authentication).As<IAuthenticationManager>();

在Startup.cs中

OAuthOptions = new OAuthAuthorizationServerOptions
    {
        TokenEndpointPath = new PathString("/Token"),// will instantiate new one to avoid Single Instance for resolving
       Provider = new CustomOAuthProvider(new ApplicationUserManager(new UserStore<Entities.ApplicationUser>(new DataContext()),AllowInsecureHttp = true
    };

CustomOAuthProvider类

using Microsoft.AspNet.Identity.Owin;
using Microsoft.Owin.Security;
using Microsoft.Owin.Security.OAuth;
using System.Security.Claims;
using System.Threading.Tasks;

public class CustomOAuthProvider:OAuthAuthorizationServerProvider
{
    private ApplicationUserManager _appUserManager;
    public CustomOAuthProvider(ApplicationUserManager appUserManager)
    {
        this._appUserManager = appUserManager;
    }



    public override async Task GrantResourceOwnerCredentials(OAuthGrantResourceOwnerCredentialsContext context)
    {
        var allowedOrigin = "*";

        context.OwinContext.Response.Headers.Add("Access-Control-Allow-Origin",new[] { allowedOrigin });


        var userManager = new ApplicationUserManager(new    Microsoft.AspNet.Identity.EntityFramework.UserStore<AppUser>(new      Data.DataContext()),new IdentityFactoryOptions<ApplicationUserManager>(),new Data.Repositories.SettingRepository(new Data.Infrastructure.DbFactory()));

       AppUser user = await userManager.FindAsync(context.UserName,context.Password);

        if (user == null)
        {
            context.SetError("invalid_grant","Invalid username or password.");
            return;
        }
        if (!user.IsActive)
        {
            context.SetError("invalid_activation","Inactive account,contact support.");
            return;
        }

        if (!user.EmailConfirmed)
        {
            context.SetError("invalid_grant","User did not confirm email.");
            return;
        }


        ClaimsIdentity oAuthIdentity = await userManager.GenerateUserIdentityAsync(user,"JWT");

        AuthenticationTicket ticket = new AuthenticationTicket(oAuthIdentity,null);
        context.Validated(ticket);

    }


    public override Task ValidateClientAuthentication(OAuthValidateClientAuthenticationContext context)
    {
        if (context.ClientId == null)
        {
            context.Validated();

        }

        return Task.FromResult<object>(null);
    }



}