/**
  * Login automatically the database user
  *
  * @param request the HTTP request
  * @param DatabaseUser databaseUser
  * @param plugin the plugin
  */
 public void doAutoLoginDatabaseUser(
     HttpServletRequest request, DatabaseUser databaseUser, Plugin plugin) {
   if (_baseAuthentication != null) {
     BaseUser user =
         DatabaseHome.findLuteceUserByLogin(databaseUser.getLogin(), plugin, _baseAuthentication);
     SecurityService.getInstance().registerUser(request, user);
   }
 }