Amss.Boilerplate.Web.Common.Filters.PrincipalRightPermissionAttribute.HasPermissions C# (CSharp) Method

        private bool HasPermissions(IPrincipal user)
        {
            var principal = user as IApplicationPrincipal;
            var isEmptyRightsList = this.accessRights == null || this.accessRights.Length == 0;
            var hasPermissions = isEmptyRightsList
                                 || (principal != null && this.accessRights.Any(principal.HasPermission));
            return hasPermissions;
        }