title: ASP.NET MVC Authorize user with many roles
body: <p>I need to authorize a Controller in my ASP.NET MVC application to users which have two roles.
  I am using Authorize attribute like this:</p>
  
  <blockquote>
    <p>[Authorize(Roles = "Producer, Editor")]</p>
  </blockquote>
  
  <p>But this allows Producers and Editors to the controller. I want only to allow users having both roles, not just one of them.</p>
  
  <p>How could i achive this?</p>