interface BanIpManagerInterface

interface BanIpManagerInterface {
    
    /**
     * Returns if this IP address is banned.
     *
     * @param string $ip
     *   The IP address to check.
     *
     * @return bool
     *   TRUE if the IP address is banned, FALSE otherwise.
     */
    public function isBanned($ip);
    
    /**
     * Finds all banned IP addresses.
     *
     * @return \Drupal\Core\Database\StatementInterface
     *   The result of the database query.
     */
    public function findAll();
    
    /**
     * Bans an IP address.
     *
     * @param string $ip
     *   The IP address to ban.
     */
    public function banIp($ip);
    
    /**
     * Unbans an IP address.
     *
     * @param string $id
     *   The IP address to unban.
     */
    public function unbanIp($id);
    
    /**
     * Finds a banned IP address by its ID.
     *
     * @param int $ban_id
     *   The ID for a banned IP address.
     *
     * @return string|false
     *   Either the banned IP address or FALSE if none exist with that ID.
     */
    public function findById($ban_id);

}