Increase uniqueness of Anonymous Users’ IP Addresses

Overview:

As the number of devices used within an organization network increases (e.g. in an .edu environment: phones, tablets, TVs, streaming boxes, game consoles, iOT, computers, etc) the number of available IP addresses in the organization diminishes. These organizations turn to using private IP addresses that use NAT techniques to masquerade the private IPs to a pool of public IP addresses when going out to a hosted web service. In doing so there is a chance that two or more form submissions may share the same public IP address. To offset the chance that HoneyPot denies the submission of a form from an Anonymous User due to this chance IP conflict, we would like to increase the uniqueness of the IP Address associated with the Anonymous User.

Solution:

Append the value of $_SERVER['REMOTE_PORT']to the User’s IP address.

honeypot_log_failure

  db_insert('honeypot_user')
    ->fields(array(
      'uid' => $user->uid,
      'hostname' =>  (isset($_SERVER['REMOTE_PORT']) ? ip_address() . ':' . $_SERVER['REMOTE_PORT'] : ip_address()),
      'timestamp' => REQUEST_TIME,
    ))
    ->execute();

honeypot_get_time_limit

    // For anonymous users, take the hostname into account.
    if ($user->uid === 0) {
      if(isset($_SERVER['REMOTE_PORT'])) {
        $query->condition('hostname', ip_address() . ":" . $_SERVER['REMOTE_PORT']);
      }
      else {
        $query->condition('hostname', ip_address());
      }
    }