    private function getConnectorUrl()
    {
        $url  = ((isset($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) !== 'off')? 'https://' : 'http://')
               . $_SERVER['SERVER_NAME']                                              // host
              . ($_SERVER['SERVER_PORT'] == 80 ? '' : ':' . $_SERVER['SERVER_PORT'])  // port
The software constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component.