How would I mimic User.IsInRole() - asp.net-mvc

Question

I have a website thats build with VS 2012 Internet Application ( Simple membership) EF Code First
Updates
I would like to know how to extend HttpContext.User.IsInRole(role) 's functionality for a custom table -> User.IsInClient(client).

Answer 1

Here is the way I'd suggest to solve your issue:
Create your own interface which implements System.Security.Principal, where you could place any methods you need:
public interface ICustomPrincipal : IPrincipal
{
bool IsInClient(string client);
}
Implement this interface:
public class CustomPrincipal : ICustomPrincipal
{
private readonly IPrincipal _principal;
public CustomPrincipal(IPrincipal principal) { _principal = principal; }
public IIdentity Identity { get { return _principal.Identity; } }
public bool IsInRole(string role) { return _principal.IsInRole(role); }
public bool IsInClient(string client)
{
return _principal.Identity.IsAuthenticated
&& GetClientsForUser(_principal.Identity.Name).Contains(client);
}
private IEnumerable<string> GetClientsForUser(string username)
{
using (var db = new YourContext())
{
var user = db.Users.SingleOrDefault(x => x.Name == username);
return user != null
? user.Clients.Select(x => x.Name).ToArray()
: new string[0];
}
}
}
In the Global.asax.cs assign your custom principal to the request user context (and optionally to the executing thread if you plan to use it later). I suggest to use Application_PostAuthenticateRequest event not Application_AuthenticateRequest for this assignment, otherwise your principal will be overridden (at least by ASP.NET MVC 4):
protected void Application_PostAuthenticateRequest(Object sender, EventArgs e)
{
Context.User = Thread.CurrentPrincipal = new CustomPrincipal(User);
/*
* BTW: Here you could deserialize information you've stored earlier in the
* cookie of authenticated user. It would be helpful if you'd like to avoid
* redundant database queries, for some user-constant information, like roles
* or (in your case) user related clients. Just sample code:
*
* var authCookie = Request.Cookies[FormsAuthentication.FormsCookieName];
* var authTicket = FormsAuthentication.Decrypt(authCookie.Value);
* var cookieData = serializer.Deserialize<CookieData>(authCookie.UserData);
*
* Next, pass some deserialized data to your principal:
*
* Context.User = new CustomPrincipal(User, cookieData.clients);
*
* Obviously such data have to be available in the cookie. It should be stored
* there after you've successfully authenticated, e.g. in your logon action:
*
* if (Membership.ValidateUser(user, password))
* {
* var cookieData = new CookieData{...};
* var userData = serializer.Serialize(cookieData);
*
* var authTicket = new FormsAuthenticationTicket(
* 1,
* email,
* DateTime.Now,
* DateTime.Now.AddMinutes(15),
* false,
* userData);
*
* var authTicket = FormsAuthentication.Encrypt(authTicket);
* var authCookie = new HttpCookie(FormsAuthentication.FormsCookieName,
authTicket);
* Response.Cookies.Add(authCookie);
* return RedirectToAction("Index", "Home");
* }
*/
}
Next, to be able to use the property User from HttpContext in the controller without casting it to ICustomPrincipal each time, define base controller where you override the default User property:
public class BaseController : Controller
{
protected virtual new ICustomPrincipal User
{
get { return (ICustomPrincipal)base.User; }
}
}
Now, let other controllers inherit from it:
public class HomeController : BaseController
{
public ActionResult Index()
{
var x = User.IsInClient(name);
If you use Razor View Engine, and you'd like to be able to use your method in the very similar way on the views:
#User.IsInClient(name)
you need to redefine WebViewPage type:
public abstract class BaseViewPage : WebViewPage
{
public virtual new ICustomPrincipal User
{
get { return (ICustomPrincipal)base.User; }
}
}
public abstract class BaseViewPage<TModel> : WebViewPage<TModel>
{
public virtual new ICustomPrincipal User
{
get { return (ICustomPrincipal)base.User; }
}
}
and tell Razor to reflect you changes, by modifying appropriate section of the Views\Web.config file:
<system.web.webPages.razor>
...
<pages pageBaseType="YourNamespace.BaseViewPage">

Answer 2

Use Linq:
var Users = Membership.GetAllUsers();
//**Kinda Like Users.InCLients(userName).
var users = from x in Users
join y in db.Clinets on x.ProviderUserKey equals y.UserID
select x
//**Kinda Like Clients.InUsers(userName)
var clients = from x in db.Clinets
join y in Users on x.UserID equals y.ProviderUserKey
select x

Answer 3

try this way
List<Clinets> AllClinets =entityObject.Clinets .ToList();
Foreach( var check in AllClinets)
{
if(check.UserTable.RoleTable.RoleName=="Rolename1")
{
//This users are Rolename1
}
else
{
//other.
}
}

Answer 4

Stored procedure would be better in this case.