function _prod_check_www in Production check & Production monitor 6

Same name and namespace in other branches

1. 7 prod_check.module \_prod_check_www()

File

./prod_check.module, line 1838

Code

function _prod_check_www($caller = 'internal') {
  global $base_url;
  $check = array();
  $error = FALSE;
  $redirect_code = 0;

  // We use base_path() in case Drupal is installed in a subdir.
  $url = $original = $base_url . base_path();
  $www = '://www.';

  // If the current domain starts with www. ...
  if (stripos($url, $www) !== FALSE) {

    // ...strip it so we check the www-less version
    $url = str_replace($www, '://', $url);
  }
  else {

    // ..else add the www before the domain.
    $url = str_replace('://', $www, $url);
  }

  // Perform an HTTP request.
  $result = drupal_http_request($url);

  // The result code will be 0 when the call could not be made or will be
  // negative when there is an internal error. Only if we succeed in making the
  // call, we will make the check count, otherwise this check will be 'skipped'.
  if ($result->code > 0) {
    if (isset($result->redirect_code)) {
      $redirect_code = $result->redirect_code;
    }
    else {
      $error = TRUE;
    }
    $check['prod_check_www'] = array(
      '#title' => t('WWW redirect'),
      '#state' => !$error,
      '#severity' => $caller == 'nagios' ? NAGIOS_STATUS_WARNING : PROD_CHECK_REQUIREMENT_WARNING,
      '#value_ok' => t('WWW redirect setup correctly!'),
      '#value_nok' => t('No WWW redirect found!'),
      '#description_ok' => t('WWW redirect properly setup: %url redirects to %original with HTTP status code %code.', array(
        '%url' => $url,
        '%original' => $original,
        '%code' => $redirect_code,
      )),
      '#description_nok' => t("You should make sure you setup an HTTP redirect with status code 301 from %url to %original (or vice versa) to prevent duplicate content punishment by search engines such as Google.<br />You can do this easily by uncommenting the right block in Drupal's .htaccess file.", array(
        '%url' => $url,
        '%original' => $original,
      )),
      '#nagios_key' => 'WWWR',
      '#nagios_type' => 'state',
    );
    return prod_check_execute_check($check, $caller);
  }
}