DESKTOP-GBA0BK8\Admin
90 lines
2.6 KiB
PHP
90 lines
2.6 KiB
PHP
<?php
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/*
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Copyright 2013-2019 Yellow Tree, Siegen, Germany
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Author: Benjamin Pick (wp-geoip-detect| |posteo.de)
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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namespace YellowTree\GeoipDetect\Lib;
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class GetClientIp {
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protected $proxyWhitelist = [];
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protected $useProxyWhitelist = false;
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public function __construct() {
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$this->proxyWhitelist[] = '::1';
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$this->proxyWhitelist[] = '127.0.0.1';
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}
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public function addProxiesToWhitelist($trusted_proxies) {
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foreach ($trusted_proxies as $proxy) {
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$proxy = geoip_detect_normalize_ip($proxy);
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if ($proxy) {
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$this->proxyWhitelist[] = $proxy;
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$this->useProxyWhitelist = true;
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}
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}
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}
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protected function getIpsFromRemoteAddr() {
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if (!isset($_SERVER['REMOTE_ADDR']))
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return ['::1'];
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// REMOTE_ADDR may contain multiple adresses
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$ip_list = explode(',', $_SERVER['REMOTE_ADDR']);
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return $ip_list;
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}
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protected function getIpsFromForwardedFor($currentIpList) {
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$ip_list_reverse = explode(',', isset($_SERVER["HTTP_X_FORWARDED_FOR"]) ? $_SERVER["HTTP_X_FORWARDED_FOR"] : '');
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if ($this->useProxyWhitelist) {
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// Add the REMOTE_ADDR to the available IP pool
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$ip_list_reverse = array_merge($ip_list_reverse, $currentIpList);
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$ip_list_reverse = array_filter($ip_list_reverse, function($value) {
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$value = trim($value);
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if (!$value) return false;
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return false === geoip_detect_is_ip_equal($value, $this->proxyWhitelist);
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});
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}
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return $ip_list_reverse;
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}
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public function getIp($useReverseProxy = false) {
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$ip_list = $this->getIpsFromRemoteAddr();
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if ($useReverseProxy)
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{
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$ip_list = $this->getIpsFromForwardedFor($ip_list);
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}
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// Each Proxy server append their information at the end, so the last IP is most trustworthy.
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$ip = end($ip_list);
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$ip = geoip_detect_normalize_ip($ip);
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if (!geoip_detect_is_ip($ip))
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$ip = '::1'; // By default, use localhost
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// this is the correct one!
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$ip = apply_filters('geoip_detect2_client_ip', $ip, $ip_list);
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return $ip;
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}
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} |