function ban_ip_form_validate

Form validation handler for ban_ip_form().

See also

ban_ip_form_submit()

File

drupal/core/modules/ban/ban.admin.inc, line 83

Administrative functionality for the Ban module.

Code

function ban_ip_form_validate($form, &$form_state) {
  $ip = trim($form_state['values']['ip']);
  if (db_query("SELECT * FROM {ban_ip} WHERE ip = :ip", array(
    ':ip' => $ip,
  ))
    ->fetchField()) {
    form_set_error('ip', t('This IP address is already banned.'));
  }
  elseif ($ip == ip_address()) {
    form_set_error('ip', t('You may not ban your own IP address.'));
  }
  elseif (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_NO_RES_RANGE) == FALSE) {
    form_set_error('ip', t('Enter a valid IP address.'));
  }
}