public function isValidFtpSettings()
    {
        $cfg = Mage::helper('radial_core')->getConfigModel();

        return trim($cfg->sftpUsername) && trim($cfg->sftpLocation) && (
            ($cfg->sftpAuthType === 'password' && trim($cfg->sftpPassword)) ||
            ($cfg->sftpAuthType === 'pub_key' && trim($cfg->sftpPrivateKey))
        );
    }