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IpResolverTrait.php
46 lines
| 1 | <?php |
| 2 | |
| 3 | namespace WPStaging\Framework\Traits; |
| 4 | |
| 5 | trait IpResolverTrait |
| 6 | { |
| 7 | /** |
| 8 | * Get client IP address with proxy support |
| 9 | * |
| 10 | * @return string Client IP address |
| 11 | */ |
| 12 | public function getClientIP(): string |
| 13 | { |
| 14 | $ip = ''; |
| 15 | |
| 16 | // Check for proxy IPs first |
| 17 | $headers = [ |
| 18 | 'HTTP_CLIENT_IP', |
| 19 | 'HTTP_X_FORWARDED_FOR', |
| 20 | 'HTTP_X_FORWARDED', |
| 21 | 'HTTP_X_CLUSTER_CLIENT_IP', |
| 22 | 'HTTP_FORWARDED_FOR', |
| 23 | 'HTTP_FORWARDED', |
| 24 | 'REMOTE_ADDR', |
| 25 | ]; |
| 26 | |
| 27 | foreach ($headers as $header) { |
| 28 | if (empty($_SERVER[$header])) { |
| 29 | continue; |
| 30 | } |
| 31 | |
| 32 | $ips = explode(',', sanitize_text_field($_SERVER[$header])); |
| 33 | $ips = array_map('trim', $ips); |
| 34 | foreach ($ips as $potentialIp) { |
| 35 | // Validate IP address |
| 36 | if (filter_var($potentialIp, FILTER_VALIDATE_IP) !== false) { |
| 37 | $ip = $potentialIp; |
| 38 | break 2; |
| 39 | } |
| 40 | } |
| 41 | } |
| 42 | |
| 43 | return $ip; |
| 44 | } |
| 45 | } |
| 46 |