Mvc, Authorize bounces authorized users

Question

I am trying to make the section of the MVC 5 web page restricted for users of a certain Active Directory group, however the [Authorize] attribute (on the controller) is also blocked for users.

My login page code is as follows:

public class AccountController: Controller
{

    [AllowAnonymous]
    public ActionResult Login(string returnUrl)
    {
        ViewBag.ReturnUrl = returnUrl;
        return View();
    }

    // POST: /Account/Login
    [HttpPost]
    [AllowAnonymous]
    [ValidateAntiForgeryToken]
    public ActionResult Login(LoginModel model, string returnUrl)
    {
        if (ModelState.IsValid)
        {
            ActiveDirectoryHelper ad = new ActiveDirectoryHelper();

            if (Membership.ValidateUser(model.UserName, model.Password))
            {
                if (ad.CheckGroupMembership(model.UserName))
                {
                    FormsAuthentication.SetAuthCookie(model.UserName, model.RememberMe);

                    if (Url.IsLocalUrl(returnUrl) && returnUrl.Length > 1 && returnUrl.StartsWith("/")
                        && !returnUrl.StartsWith("//") && !returnUrl.StartsWith("/\\"))
                    {
                        return Redirect(returnUrl);
                    }
                    else
                    {
                        return RedirectToAction("Index", "Home");
                    }
                }
                else
                {
                    ModelState.AddModelError("", "Credentials are correct but you are no authorised \n You Need membership in group: HKF-HIT-FortigateAPI-GS");
                }
            }
            else
            {
                ModelState.AddModelError("", "The user name or password provided is incorrect");
            }
        }
        // if we got this far, something failed, redisplay form
        return View(model);
    }
    // POST: /Account/LogOff
    [HttpPost]
    [ValidateAntiForgeryToken]
    public ActionResult LogOff()
    {
        FormsAuthentication.SignOut();
        return RedirectToAction("Index", "Home");
    }
}
public class ActiveDirectoryHelper
{
    string group = "HKF-HIT-FortigateAPI-GS";
     public bool CheckGroupMembership(string name)
    {
        var context = new PrincipalContext(
                            ContextType.Domain,
                            "AD-Domain", @"Username", "Password");

        var userPrincipal = UserPrincipal.FindByIdentity(
                            context,
                            IdentityType.SamAccountName,
                            name);

        var test = userPrincipal;

        if (userPrincipal.IsMemberOf(context,
             IdentityType.Name,
             group))
        {
            return true;
        }
        return false;
    }
}

The user navigates and redirects to Index in the Home controller.

However, this controller has the [Authorized] value set as follows:

[Authorize]
public class HomeController : Controller
{
    public ActionResult Index()
    {
        return View();
    }
}

And here the user returned to the login page, as if he had not logged in.

Also this is web.config:

         

In the browser, I see ADAuthCookie.

Edit: view images of request data:

Account Message:

Violinist:

Index Get:

Violinist:

EDIT: , , , , Global.asaz.cs.

Application_PostAuthenticateRequest .

, , :

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

    if (authCookie != null)
    {
        FormsAuthenticationTicket authTicket = FormsAuthentication.Decrypt(authCookie.Value);

        JavaScriptSerializer serializer = new JavaScriptSerializer();

        CustomPrincipalSerializeModel serializeModel = serializer.Deserialize<CustomPrincipalSerializeModel>(authTicket.UserData);

        CustomPrincipal newUser = new CustomPrincipal(authTicket.Name);
        newUser.Name = serializeModel.Name;
        HttpContext.Current.User = newUser;
    }
}

global.asax :

CustomPrincipalSerializeModel serializeModel = new CustomPrincipalSerializeModel();
serializeModel.Name = model.UserName;

JavaScriptSerializer serializer = new JavaScriptSerializer();

string userData = serializer.Serialize(serializeModel);

FormsAuthenticationTicket authTicket = new FormsAuthenticationTicket(
         1,
         model.UserName,
         DateTime.Now,
         DateTime.Now.AddMinutes(15),
         false,
         userData);

string encTicket = FormsAuthentication.Encrypt(authTicket);
HttpCookie faCookie = new HttpCookie(FormsAuthentication.FormsCookieName, encTicket);
Response.Cookies.Add(faCookie);

.

Answer 1

AuthorizeAttribute HttpContext.User ( IPrincipal) HttpContext.User.Identity ( IIdentity).

(Identity, Membership ..) Microsoft MVC/ASP.NET. , AcquireRequestState ( ) PostAuthorizeRequest.

. ASP.NET MVC - IIdentity IPrincipal IPrincipal IIdentity.