/**
     * @param array $privileges
     * @param string $resource
     * @param string $action
     * @return array
     */
    private function searchPrivileges($privileges, $resource, $action)
    {
        return Kdyby\Tools\Arrays::flatFilter($privileges, function (Privilege $privilege) use ($resource, $action) {
            return ($resource === '*' || $resource === $privilege->getResource()->getName())
                && ($action === '*' || $action === $privilege->getAction()->getName());
        });
    }