Can I get the controller from the HttpContext?

For those looking just to get the controller name and not an actual instance, as is needed for custom authorization overrides of AuthorizeCore(httpContext), this is the clean code.

var request = httpContext.Request;
var currentUser = httpContext.User.Identity.Name;
string controller = request.RequestContext.RouteData.Values["controller"].ToString();
string action = request.RequestContext.RouteData.Values["action"].ToString();