content: /*
   *  Licensed to the Apache Software Foundation (ASF) under one
   *  or more contributor license agreements.  See the NOTICE file
   *  distributed with this work for additional information
   *  regarding copyright ownership.  The ASF licenses this file
   *  to you under the Apache License, Version 2.0 (the
   *  "License"); you may not use this file except in compliance
   *  with the License.  You may obtain a copy of the License at
   *
   *        http://www.apache.org/licenses/LICENSE-2.0
   *
   *  Unless required by applicable law or agreed to in writing,
   *  software distributed under the License is distributed on an
   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   *  KIND, either express or implied.  See the License for the
   *  specific language governing permissions and limitations
   *  under the License.
   */
  package org.apache.causeway.viewer.wicket.ui.app.logout;
  
  import org.apache.wicket.authroles.authentication.AuthenticatedWebSession;
  import org.apache.wicket.request.cycle.RequestCycle;
  
  import org.springframework.stereotype.Service;
  
  import org.apache.causeway.applib.services.iactnlayer.InteractionLayerTracker;
  import org.apache.causeway.core.interaction.session.CausewayInteraction;
  import org.apache.causeway.core.security.authentication.logout.LogoutHandler;
  
  import lombok.RequiredArgsConstructor;
  
  @Service
  @RequiredArgsConstructor
  public class LogoutHandlerWkt implements LogoutHandler {
  
      final InteractionLayerTracker interactionLayerTracker;
  
      @Override
      public void logout() {
  
          if(RequestCycle.get()==null) {
              return; // logout is only permissive if within the context of a Wicket request-cycle
          }
  
          var currentWktSession = AuthenticatedWebSession.get();
          if(currentWktSession==null) {
              return;
          }
  
          if(interactionLayerTracker.isInInteraction()) {
              interactionLayerTracker.currentInteraction()
              .map(CausewayInteraction.class::cast)
              .ifPresent(interaction->
                  interaction.setOnClose(currentWktSession::invalidateNow));
  
          } else {
              currentWktSession.invalidateNow();
          }
      }
  
  }
  