public MembershipUser GetUser(string allowedRoles = "*")
        {
            Login login = HttpContext.Current.Session["login"] == null ? null : (Login)HttpContext.Current.Session["login"];

            if (login == null)
            {
                return(null);
            }

            CustomMembershipProvider membershipProvider = new CustomMembershipProvider();
            MembershipUser           user = membershipProvider.GetUser(login.CPF, false);

            if (allowedRoles != "*")
            {
                allowedRoles = allowedRoles.Replace(" ", "");
                allowedRoles = allowedRoles.ToLower();
                string[]           separator          = { "," };
                string[]           vet_allowedRoles   = allowedRoles.Split(separator, StringSplitOptions.RemoveEmptyEntries);
                CustomRoleProvider customRoleProvider = new CustomRoleProvider();
                string[]           vet_rolesUser      = customRoleProvider.GetRolesForUser(login.CPF);
                foreach (string role in vet_allowedRoles)
                {
                    foreach (string roleUser in vet_rolesUser)
                    {
                        if (role == roleUser)
                        {
                            return(user);
                        }
                    }
                }
                return(null);
            }
            return(user);
        }
        public string[] GetCurrentUserRoles()
        {
            Login login = HttpContext.Current.Session["login"] == null ? null : (Login)HttpContext.Current.Session["login"];

            if (login == null)
            {
                return(null);
            }

            CustomRoleProvider customRoleProvider = new CustomRoleProvider();

            string[] roles = customRoleProvider.GetRolesForUser(login.CPF);
            return(roles);
        }