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<?php
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/**
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* This file is part of the Shieldon package.
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*
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* (c) Terry L. <contact@terryl.in>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*
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* php version 7.1.0
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*
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* @category Web-security
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* @package Shieldon
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* @author Terry Lin <contact@terryl.in>
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* @copyright 2019 terrylinooo
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* @license https://github.com/terrylinooo/shieldon/blob/2.x/LICENSE MIT
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* @link https://github.com/terrylinooo/shieldon
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* @see https://shieldon.io
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*/
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declare(strict_types=1); |
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namespace Shieldon\Firewall; |
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use function substr; |
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use function gethostbyaddr; |
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use function Shieldon\Firewall\set_ip; |
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/**
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* IP Trait
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*/
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trait IpTrait |
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{
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/**
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* Public methods | Desctiotion
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* ----------------------|---------------------------------------------
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* setIp | Set an IP address.
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* getIp | Get current set IP.
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* setRdns | Set a RDNS record for the check.
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* getRdns | Get IP resolved hostname.
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* ----------------------|---------------------------------------------
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*/
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/**
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* IP address.
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*
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* @var string
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*/
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protected $ip = ''; |
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/**
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* The RDNS recond of the Robot's IP address.
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* This is the most important value because that the IP of the most popular
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* search engines can be resolved to their domain name.
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*
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* @var string
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*/
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protected $rdns = ''; |
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/**
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* Set an IP address.
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* If you want to deal with the proxy and CDN IPs.
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*
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* @param string $ip The IP address.
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* @param bool $queryRdns The option to query RDNS.
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*
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* @return void
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*/
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public function setIp(string $ip, $queryRdns = false): void |
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{
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$this->ip = $ip; |
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set_ip($this->ip); |
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if ($queryRdns) { |
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// Check if your IP is from localhost, perhaps your are in development
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// environment?
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if ( |
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substr($this->ip, 0, 8) === '192.168.' || |
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substr($this->ip, 0, 6) === '127.0.' |
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) { |
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$this->setRdns('localhost'); |
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} else { |
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$this->setRdns(gethostbyaddr($this->ip)); |
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}
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}
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}
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/**
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* Get current set IP.
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*
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* @return string
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*/
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public function getIp(): string |
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{
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return $this->ip; |
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}
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/**
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* Set a RDNS record for the check.
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*
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* @param string $rdns Reserve DNS record for that IP address.
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*
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* @return void
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*/
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public function setRdns($rdns): void |
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{
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$this->rdns = $rdns; |
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}
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/**
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* Get IP resolved hostname.
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*
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* @return string
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*/
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public function getRdns(): string |
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{
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return $this->rdns; |
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}
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}
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