File: /storage/v12674/lcamodesto/public_html/wp-content/plugins/blackhole-bad-bots/inc/blackhole-ip.php
<?php // Blackhole for Bad Bots - IP functionality
if (!defined('ABSPATH')) exit;
function blackhole_get_ip() {
$ip = blackhole_evaluate_ip();
if (preg_match('/(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})/', $ip, $ip_match)) {
$ip = $ip_match[1];
}
return sanitize_text_field($ip);
}
function blackhole_evaluate_ip() {
$ip_keys = array('REMOTE_ADDR', 'HTTP_CF_CONNECTING_IP', 'HTTP_CLIENT_IP', 'HTTP_X_FORWARDED_FOR', 'HTTP_X_FORWARDED', 'HTTP_X_CLUSTER_CLIENT_IP', 'HTTP_X_REAL_IP', 'HTTP_X_COMING_FROM', 'HTTP_PROXY_CONNECTION', 'HTTP_FORWARDED_FOR', 'HTTP_FORWARDED', 'HTTP_COMING_FROM', 'HTTP_VIA');
foreach ($ip_keys as $key) {
if (array_key_exists($key, $_SERVER) === true) {
foreach (explode(',', $_SERVER[$key]) as $ip) {
$ip = trim($ip);
$ip = blackhole_normalize_ip($ip);
if (blackhole_validate_ip($ip)) {
return $ip;
}
}
}
}
return esc_html__('Error: Invalid Address', 'blackhole-bad-bots');
}
function blackhole_normalize_ip($ip) {
if (strpos($ip, ':') !== false && substr_count($ip, '.') == 3 && strpos($ip, '[') === false) {
// IPv4 with port (e.g., 123.123.123:80)
$ip = explode(':', $ip);
$ip = $ip[0];
} else {
// IPv6 with port (e.g., [::1]:80)
$ip = explode(']', $ip);
$ip = ltrim($ip[0], '[');
}
return $ip;
}
function blackhole_validate_ip($ip) {
$options = FILTER_FLAG_IPV4 | FILTER_FLAG_IPV6 | FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE;
$options = apply_filters('blackhole_ip_filter', $options);
$filtered = filter_var($ip, FILTER_VALIDATE_IP, $options);
if (!$filtered || empty($filtered)) {
if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) {
return $ip; // IPv4
} elseif (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6)) {
return $ip; // IPv6
}
if ($ip) {
$log = apply_filters('blackhole_validate_ip_log', 'Invalid IP Address: '. $ip, $ip);
if (!empty($log)) error_log($log);
}
return false;
}
return $filtered;
}
function blackhole_ip_in_range($ip, $range) {
list($range, $netmask) = explode('/', $range, 2);
$range_decimal = ip2long($range);
$ip_decimal = ip2long($ip);
$wildcard_decimal = pow(2, (32 - $netmask)) - 1;
$netmask_decimal = ~ $wildcard_decimal;
return (($ip_decimal & $netmask_decimal) == ($range_decimal & $netmask_decimal));
}