Extension class that helps handle my security needs

ModuleSecurity.cs

public static class ModuleSecurity
    {
        public static void ShouldBeAuthenticated(this NancyModule module)
        {
            module.Before.AddItemToEndOfPipeline(ShouldBeAuthenticated);
        }

        private static Response ShouldBeAuthenticated(NancyContext context)
        {
            Response response = null;
            if ((context.CurrentUser == null) ||
                String.IsNullOrWhiteSpace(context.CurrentUser.UserName))
            {
                response = new RedirectResponse("/");
            }

            return response;
        }

    }