class-visitor.php
| 1 | <?php |
| 2 | /** |
| 3 | * Status and information regarding the site visitor. |
| 4 | * |
| 5 | * @package automattic/jetpack-status |
| 6 | */ |
| 7 | |
| 8 | namespace Automattic\Jetpack\Status; |
| 9 | |
| 10 | /** |
| 11 | * Visitor class. |
| 12 | */ |
| 13 | class Visitor { |
| 14 | |
| 15 | /** |
| 16 | * Gets current user IP address. |
| 17 | * |
| 18 | * @param bool $check_all_headers Check all headers? Default is `false`. |
| 19 | * |
| 20 | * @return string Current user IP address. |
| 21 | */ |
| 22 | public function get_ip( $check_all_headers = false ) { |
| 23 | if ( $check_all_headers ) { |
| 24 | foreach ( array( |
| 25 | 'HTTP_CF_CONNECTING_IP', |
| 26 | 'HTTP_CLIENT_IP', |
| 27 | 'HTTP_X_FORWARDED_FOR', |
| 28 | 'HTTP_X_FORWARDED', |
| 29 | 'HTTP_X_CLUSTER_CLIENT_IP', |
| 30 | 'HTTP_FORWARDED_FOR', |
| 31 | 'HTTP_FORWARDED', |
| 32 | 'HTTP_VIA', |
| 33 | ) as $key ) { |
| 34 | if ( ! empty( $_SERVER[ $key ] ) ) { |
| 35 | // @todo Some of these might actually be lists of IPs (e.g. HTTP_X_FORWARDED_FOR) or something else entirely (HTTP_VIA). |
| 36 | return filter_var( wp_unslash( $_SERVER[ $key ] ) ); |
| 37 | } |
| 38 | } |
| 39 | } |
| 40 | |
| 41 | return ! empty( $_SERVER['REMOTE_ADDR'] ) ? filter_var( wp_unslash( $_SERVER['REMOTE_ADDR'] ) ) : ''; |
| 42 | } |
| 43 | |
| 44 | } |
| 45 |