61 lines
1.9 KiB
PHP
61 lines
1.9 KiB
PHP
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<?php
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if (!class_exists("Astra_ip")) {
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class Astra_ip
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{
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function __construct()
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{
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}
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function get_ip_address()
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{
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if (defined("CZ_IP_HEADER")) {
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if (array_key_exists(CZ_IP_HEADER, $_SERVER)) {
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return $_SERVER[CZ_IP_HEADER];
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}
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}
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$serverIp = isset($_SERVER['SERVER_ADDR']) ? $_SERVER['SERVER_ADDR'] : '';
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$ip_keys = array('HTTP_CF_CONNECTING_IP', 'HTTP_X_SUCURI_CLIENTIP', 'HTTP_X_REAL_IP', 'HTTP_CLIENT_IP', 'HTTP_X_FORWARDED_FOR', 'HTTP_X_FORWARDED', 'HTTP_X_CLUSTER_CLIENT_IP', 'HTTP_FORWARDED_FOR', 'HTTP_FORWARDED', 'REMOTE_ADDR');
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foreach ($ip_keys as $key) {
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if (array_key_exists($key, $_SERVER) === true) {
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foreach (explode(',', $_SERVER[$key]) as $ip) {
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// trim for safety measures
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$ip = trim($ip);
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// attempt to validate IP
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if (($this->validate_ip($ip) || $this->validate_ipv6($ip)) && $ip !== $serverIp) {
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return $ip;
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}
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}
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}
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}
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return isset($_SERVER['REMOTE_ADDR']) ? $_SERVER['REMOTE_ADDR'] : false;
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}
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/**
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* Ensures an ip address is both a valid IP and does not fall within
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* a private network range.
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*/
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function validate_ipv6($ip)
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{
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if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6)) {
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return true;
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}
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return false;
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}
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function validate_ip($ip)
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{
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if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4 | FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE) === false) {
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return false;
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}
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return true;
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}
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}
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}
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