function _shoutbox_ip_address in Shoutbox 5

Backport of ip_address function from Drupal 6.

1 call to _shoutbox_ip_address()

_shoutbox_is_user_owned in ./shoutbox.module

Determine if the current user owns the $shout.

File

./shoutbox.module, line 1146

shoutbox module displays a block for users to create short messages for thw whole site. Uses AHAH to update the database and display content.

Code

function _shoutbox_ip_address() {
  static $ip_address = NULL;
  if (!isset($ip_address)) {
    $ip_address = $_SERVER['REMOTE_ADDR'];
    if (variable_get('reverse_proxy', 0) && array_key_exists('HTTP_X_FORWARDED_FOR', $_SERVER)) {

      // If an array of known reverse proxy IPs is provided, then trust
      // the XFF header if request really comes from one of them.
      $reverse_proxy_addresses = variable_get('reverse_proxy_addresses', array());
      if (!empty($reverse_proxy_addresses) && in_array($ip_address, $reverse_proxy_addresses, TRUE)) {

        // If there are several arguments, we need to check the most
        // recently added one, i.e. the last one.
        $ip_address = array_pop(explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']));
      }
    }
  }
  return $ip_address;
}