为ASP.NET身份提供商设置自定义主体

Question

我正在使用Microsoft.ASPNET.Identity提供程序，我想设置自定义主体。此前有FomrsAuthentication

，我会做这样的事情：

protected void Application_AuthenticateRequest(Object sender, EventArgs e) 
    { 
     HttpCookie authCookie = Request.Cookies[FormsAuthentication.FormsCookieName]; 

     if(authCookie != null) 
     { 
      using (var db = new GSCM.Logic.GSCMDatabase()) 
      { 
       FormsAuthenticationTicket ticket = FormsAuthentication.Decrypt(authCookie.Value); 
       var id = new GenericIdentity(ticket.Name); 
       var principal = new VmUserLogin(id); 
       var found = db.LoadInternalUser(ticket.Name); 
       if(found != null) 
       { 
        Mapper.Map(found, principal); 
       } 

       HttpContext.Current.User = principal; 
      } 
     } 
    } 

我可怎么办与ientity提供商

Answer 1

，而不是与身份和校长打类似的东西，我会做以下：

在您的应用所需的用户信息创建的接口

public interface ICurrentUserService 
    { 
     VmUserLogin CurrentUser{get; } 
    } 

为您的Web项目中此界面如下

public class HttpLoggedInUserService : ICurrentUserService 
    { 
     private readonly IUserRepository _userRepository; 
     private VmUserLogin _currentUser; 

     public HttpLoggedInUserService(IUserRepository userRepository) 
     { 
      _userRepository= userRepository; 
     } 
     public VmUserLogin CurrentUser 
     { 
      get 
      { 
       if (_currentUser == null) 
       { 
        if (HttpContext.Current.Items.Contains("CurrentUser")) 
         return HttpContext.Current.Items["CurrentUser"] as VmUserLogin ; 

        var loginName = HttpContext.Current.User.Identity.Name.ToLower(); 
        _currentUser = _userRepository.GetByLoginName(loginName); 

        HttpContext.Current.Items["CurrentUser"] = _currentUser ; 
       } 

       if (_currentUser == null) 
       { 
        HttpContext.Current.Response.Redirect("/NoAccess"); 
        return null; 
       } 

       return _currentUser ; 
      } 
     } 
    } 

实现最后，你的控制器内，只需注入ICurrentUserService

public class MyController : Controller 
    { 
     private readonly ICurrentUserService _currentUserService; 

     public MyController(ICurrentUserService currentUserService) 
     { 
      _currentUserService = currentUserService; 
     } 

     public ActionResult Index() 
     { 
      return View(_currentUserService.CurrentUser); 
     } 
} 

你必须使用一个IoC容器，该解决方案将允许您将当前登录的用户注入到控制器，业务层甚至数据访问层中（如果需要），并且这些层都不会知道如何回收