function fail2ban_syslog in Fail2ban Firewall Integration 6

Same name and namespace in other branches

1. 7.2 fail2ban.module \fail2ban_syslog()
2. 7 fail2ban.module \fail2ban_syslog()

The function that does the actual work, writing a log message.

Parameters

$address: String - An IP address or net/mask.

1 call to fail2ban_syslog()

fail2ban_comment_admin_overview_submit in ./fail2ban.module

Form submit handler to mass-report and unpublish or delete comments.

File

./fail2ban.module, line 75

Code

function fail2ban_syslog($address) {
  if (empty($address) || !is_string($address)) {
    return;
  }

  // Check if the address is in the whitelist. If so, just return.
  if (fail2ban_whitelist($address)) {
    drupal_set_message(t('The address !address is !whitelisted and will not be submitted to the firewall', array(
      '!address' => $address,
      '!whitelisted' => l('whitelisted', 'admin/settings/fail2ban'),
    )));
    return;
  }

  // Get the log identifier
  //
  $identifier = variable_get('fail2ban_identifier', 'drupal');

  // Turn on all the right log options.
  //
  $options = 0;
  foreach (variable_get('fail2ban_options', array(
    LOG_ODELAY,
  )) as $option) {
    $options = $options | $option;
  }

  // Get the facility.
  //
  $facility = variable_get('fail2ban_facility', LOG_USER);

  // Get the priority.
  //
  $priority = 0;
  foreach (variable_get('fail2ban_priority', array(
    LOG_NOTICE,
  )) as $option) {
    $priority = $priority | $option;
  }

  // Get the log string.
  //
  $message = strtr(variable_get('fail2ban_logstring', 'Submitting address [!address] to the firewall'), array(
    '!address' => $address,
  ));

  // Open the log stream.
  //
  if (openlog($identifier, $options, $facility) == FALSE) {
    watchdog('fail2ban', 'Unable to connect to the syslog daemon', NULL, WATCHDOG_ERROR);
    drupal_set_message(t('Unable to connect to the syslog daemon'), 'error');
    return;
  }
  if (syslog($priority, $message) == FALSE) {
    watchdog('fail2ban', 'Cannot write message to the syslog daemon', NULL, WATCHDOG_ERROR);
    drupal_set_message(t('Cannot write message to the syslog daemon'), 'error');
  }
  else {
    drupal_set_message(t('The address !address has been submitted to the firewall', array(
      '!address' => $address,
    )));
  }
  if (closelog() == FALSE) {
    watchdog('fail2ban', 'Cannot close connection to the syslog daemon', NULL, WATCHDOG_ERROR);
  }
}