public boolean isSecure() {
        if(getScheme().equalsIgnoreCase(HTTPS_PREFIX)) {
            return true;
        }
        return false;
    }
Returns the login of the user making this request,
 if the user has been authenticated, or null if the user has not been authenticated.
container-core/src/main/java/com/yahoo/jdisc/http/filter/DiscFilterRequest.java