protected function isEnabled()
    {
        // At least one redirect must be enabled
        if (!$this->getForceWWW() && !$this->getForceSSL()) {
            return false;
        }

        // Filter by env vars
        $enabledEnvs = $this->getEnabledEnvs();
        if (is_bool($enabledEnvs)) {
            return $enabledEnvs;
        }

        // If CLI, EnabledEnvs must contain CLI
        if (Director::is_cli() && !in_array('cli', $enabledEnvs)) {
            return false;
        }

        // Check other envs
        return empty($enabledEnvs) || in_array(Director::get_environment_type(), $enabledEnvs);
    }