如何使用 OWIN 身份验证获取登录用户？

Question

The login code in my AccountController

var claims = new List<Claim>();  
claims.Add(new Claim(ClaimTypes.Name, user.Name+" "+user.Surname));
claims.Add(new Claim(ClaimTypes.Role, role.Code));
var claimIdenties = new ClaimsIdentity(claims, DefaultAuthenticationTypes.ApplicationCookie);
var ctx = Request.GetOwinContext();
var authenticationManager = ctx.Authentication;
authenticationManager.SignIn(new AuthenticationProperties() { IsPersistent = false }, claimIdenties);

In my PrivateController I want to access to the Id of the authenticated user, I'm searching an ID field or something like that but

How to get the logged user with an OWIN authentication?

Edit

Request.GetOwinContext().Authentication.User.Identity

Gives me access to the following propertys:

• AuthenticationType
• IsAuthenticated
• Name //Claim.Name

How can I set an ID like a 'Claim.ID' and retrieve it?

Second edit

This post https://stackoverflow.com/a/24893167/4470880 solved my problem.

Answer 1

From the Microsoft.AspNet.Identity.Core NuGet package https://www.nuget.org/packages/Microsoft.AspNet.Identity.Core/ , in the Microsoft.AspNet.Identity namespace, there are extension methods to get the user's ID and Name -- see MSDN IdentityExtensions Class (Microsoft.AspNet.Identity)

usage is like this (from a controller):

string userId = this.HttpContext.User.Identity.GetUserId();

Answer 2

You can also write something like that :

using Microsoft.AspNet.Identity;
using Microsoft.AspNet.Identity.Owin;
using System.Web;
using System.Web.Mvc;

public class BaseController : Controller
{
    protected ApplicationUser CurrentUser
    {
        get { return System.Web.HttpContext.Current.GetOwinContext()
                    .GetUserManager<ApplicationUserManager>()
                    .FindById(System.Web.HttpContext.Current.User.Identity.GetUserId()); 
            }
    }

    //...
}

So you write a BaseController which inherits from Controller .
Then, all your controllers will heritate from BaseController ; so you could use CurrentUser.Id in all your controllers

Answer 3

Try this alternative:

var user = HttpContext.GetOwinContext().Authentication.User;

For getting name of the user :

string name = HttpContext.GetOwinContext().Authentication.User.Identity.Name;

Hope this helps...