MVC 5 Access Claims Identity User Data

Question

I am developing an MVC 5 web application using Entity Framework 5 Database First approach. I am using OWIN for the authentication of Users. Below shows my Login method within my Account Controller.

public ActionResult Login(LoginViewModel model, string returnUrl)
{
    if (ModelState.IsValid)
    {
        var user = _AccountService.VerifyPassword(model.UserName, model.Password, false);
        if (user != null)
        {
            var identity = new ClaimsIdentity(new[] { new Claim(ClaimTypes.Name, model.UserName), }, DefaultAuthenticationTypes.ApplicationCookie, ClaimTypes.Name, ClaimTypes.Role);

            identity.AddClaim(new Claim(ClaimTypes.Role, "guest"));
            identity.AddClaim(new Claim(ClaimTypes.GivenName, "A Person"));
            identity.AddClaim(new Claim(ClaimTypes.Sid, user.userID)); //OK to store userID here?

            AuthenticationManager.SignIn(new AuthenticationProperties
            {
                IsPersistent = model.RememberMe
            }, identity);

            return RedirectToAction("Index", "MyDashboard");
        }
        else
        {
            ModelState.AddModelError("", "Invalid username or password.");
        }
    }
    // If we got this far, something failed, redisplay form
    return View(model);
}

As you can see I'm creating a ClaimsIdentity and adding several claims to it, then passing it to OWIN using the AuthenticationManager to perform the sign in.

The problem I am having is that I'm not sure how to access the claims in the rest of my application, either in Controllers or in Razor Views.

I had tried the approach listed in this tutorial

http://brockallen.com/2013/10/24/a-primer-on-owin-cookie-authentication-middleware-for-the-asp-net-developer/

For example, I tried this in my Controller code in an attempt to get access to the values passed into the Claims, however, the user.Claims is equal to null

var ctx = HttpContext.GetOwinContext();
ClaimsPrincipal user = ctx.Authentication.User;
IEnumerable<Claim> claims = user.Claims;

Perhaps I am missing something here.

UPDATE

Based on Darin's answer, I added his code but still I fail to see access to the Claims. Please see screenshot below showing what I see when hovered over identity.Claims.

Answer 1

Try this:

[Authorize]
public ActionResult SomeAction()
{
    var identity = (ClaimsIdentity)User.Identity;
    IEnumerable<Claim> claims = identity.Claims;
    ...
}

Answer 2

You can also do this:

//Get the current claims principal
var identity = (ClaimsPrincipal)Thread.CurrentPrincipal;
var claims = identity.Claims;

Update

To provide further explanation as per comments.

If you are creating users within your system as follows:

UserManager<applicationuser> userManager = new UserManager<applicationuser>(new UserStore<applicationuser>(new SecurityContext()));
ClaimsIdentity identity = userManager.CreateIdentity(user, DefaultAuthenticationTypes.ApplicationCookie);

You should automatically have some Claims populated relating to you Identity.

To add customized claims after a user authenticates you can do this as follows:

var user = userManager.Find(userName, password);
identity.AddClaim(new Claim(ClaimTypes.Email, user.Email));

The claims can be read back out as Darin has answered above or as I have.

The claims are persisted when you call below passing the identity in:

AuthenticationManager.SignIn(new AuthenticationProperties() { IsPersistent = persistCookie }, identity);