Authorize if not in specific role attribute MVC 5 - attributes

Question

I need authorization attribute for action which allows all but specific role.
something like
[!Authorize(Roles = "SuperUser")]
public ActionResult PaySuperUser.....
Anything built in?
Or any suggestion for custom attribute?

Answer 1

I think a custom attribute is a way to go.
Here is my code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Web.Http;
using System.Web.Http.Controllers;
namespace YourFancyNamespace
{
public class AuthorizeExtended : AuthorizeAttribute
{
private string _notInRoles;
private List<string> _notInRolesList;
public string NotInRoles
{
get
{
return _notInRoles ?? string.Empty;
}
set
{
_notInRoles = value;
if (!string.IsNullOrWhiteSpace(_notInRoles))
{
_notInRolesList = _notInRoles
.Split(new[] {","}, StringSplitOptions.RemoveEmptyEntries)
.Select(r => r.Trim()).ToList();
}
}
}
public override void OnAuthorization(HttpActionContext actionContext)
{
base.OnAuthorization(actionContext);
if (_notInRolesList != null && _notInRolesList.Count > 0)
{
foreach (var role in _notInRolesList)
{
if (actionContext.RequestContext.Principal.IsInRole(role))
{
actionContext.Response = new HttpResponseMessage(HttpStatusCode.Unauthorized);
}
}
}
}
}
}
And here is how you can use it:
// A AuthorizeExtended equals Authorize(with Role filter) + exclude all pesky users
[AuthorizeExtended(Roles = "User", NotInRoles="PeskyUser")]
[HttpPost]
[Route("api/Important/DoNotForgetToUpvote")]
public async Task<IHttpActionResult> DoNotForgetToUpvote()
{
return Ok("I did it!");
}
// Б AuthorizeExtended equals plain Authorize + exclude all pesky users
[AuthorizeExtended(NotInRoles="PeskyUser")]
[HttpPost]
[Route("api/Important/DoNotForgetToUpvote")]
public async Task<IHttpActionResult> DoNotForgetToUpvote()
{
return Ok("I did it!");
}
// В AuthorizeExtended equals Authorize
[AuthorizeExtended]
[HttpPost]
[Route("api/Important/DoNotForgetToUpvote")]
public async Task<IHttpActionResult> DoNotForgetToUpvote()
{
return Ok("I did it!");
}