| 1 | <?php if (!defined('BB2_CORE')) die('I said no cheating!'); |
| 2 | |
| 3 | // Specialized screening for trackbacks |
| 4 | function bb2_trackback($package) |
| 5 | { |
| 6 | // Web browsers don't send trackbacks |
| 7 | if ($package['is_browser']) { |
| 8 | return 'f0dcb3fd'; |
| 9 | } |
| 10 | |
| 11 | // Proxy servers don't send trackbacks either |
| 12 | if (array_key_exists('Via', $package['headers_mixed']) || array_key_exists('Max-Forwards', $package['headers_mixed']) || array_key_exists('X-Forwarded-For', $package['headers_mixed']) || array_key_exists('Client-Ip', $package['headers_mixed'])) { |
| 13 | return 'd60b87c7'; |
| 14 | } |
| 15 | return false; |
| 16 | } |
| 17 | |
| 18 | ?> |
| 19 | |
