# QuickInfoUserAuthenticationListener.java

    /*
     * Copyright (C) 2000 - 2024 Silverpeas
     *
     * This program is free software: you can redistribute it and/or modify
     * it under the terms of the GNU Affero General Public License as
     * published by the Free Software Foundation, either version 3 of the
     * License, or (at your option) any later version.
     *
     * As a special exception to the terms and conditions of version 3.0 of
     * the GPL, you may redistribute this Program in connection with Free/Libre
     * Open Source Software ("FLOSS") applications as described in Silverpeas's
     * FLOSS exception. You should have received a copy of the text describing
     * the FLOSS exception, and it is also available here:
     * "https://www.silverpeas.org/legal/floss_exception.html"
     *
     * This program is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
     * GNU Affero General Public License for more details.
     *
     * You should have received a copy of the GNU Affero General Public License
     * along with this program. If not, see <https://www.gnu.org/licenses/>.
     */

    package org.silverpeas.components.quickinfo;

    import org.silverpeas.components.quickinfo.model.News;
    import org.silverpeas.components.quickinfo.model.QuickInfoService;
    import org.silverpeas.components.quickinfo.model.QuickInfoServiceProvider;
    import org.silverpeas.core.admin.user.model.User;
    import org.silverpeas.core.annotation.Service;
    import org.silverpeas.core.initialization.Initialization;
    import org.silverpeas.core.security.authentication.UserAuthenticationListener;

    import javax.inject.Singleton;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpSession;
    import java.util.List;

    /**
     * This listener handles the blocking news about Quick Info application.<br>
     * Just after a successful user authentication, blocking news are displayed to the user if any.
     */
    @Service
    @Singleton
    public class QuickInfoUserAuthenticationListener
        implements UserAuthenticationListener, Initialization {

      @Override
      public String firstHomepageAccessAfterAuthentication(HttpServletRequest request, User user,
          String finalURL) {
        return handle(request, user, finalURL);
      }

      @Override
      public String homepageAccessFromLoginWhenUserSessionAlreadyOpened(
          final HttpServletRequest request, final User user, final String finalURL) {
        return handle(request, user, finalURL);
      }

      private String handle(HttpServletRequest request, User user,
          String finalURL) {
        String redirectURL = null;
        if (user != null && !user.isAnonymous()) {
          HttpSession session = request.getSession();
          session.removeAttribute("Silverpeas_BlockingNews");
          session.removeAttribute("Silverpeas_FinalURL");
          List<News> news = getService().getUnreadBlockingNews(user.getId());
          if (!news.isEmpty()) {
            session.setAttribute("Silverpeas_BlockingNews", news);
            session.setAttribute("Silverpeas_FinalURL", finalURL);
            redirectURL = "/quickinfo/jsp/blockingNews.jsp";
          }
        }
        return redirectURL;
      }

      private QuickInfoService getService() {
        return QuickInfoServiceProvider.getQuickInfoService();
      }
    }