package org.apache.turbine.modules.actions.sessionvalidator;

 /*

  * 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.

  */

 import org.apache.commons.lang3.StringUtils;

 import org.apache.logging.log4j.Logger;

 import org.apache.logging.log4j.LogManager;

 import org.apache.turbine.Turbine;

 import org.apache.turbine.om.security.User;

 import org.apache.turbine.pipeline.PipelineData;

 import org.apache.turbine.util.RunData;

 /**

  * SessionValidator for use with the Template Service, the

  * TemplateSessionValidator is virtually identical to the

  * {@link TemplateSecureSessionValidator} except that it does not transfer to the

  * login page when it detects a null user (or a user not logged in).

  *

  * <p>The Template Service requires a different Session Validator

  * because of the way it handles screens.

  *

  * <p>Note that you will need to set the template.login property to the

  * login template.

  *

  * @see TemplateSecureSessionValidator

  * @author <a href="mailto:john.mcnally@clearink.com">John D. McNally</a>

  * @author <a href="mailto:mbryson@mont.mindspring.com">Dave Bryson</a>

  * @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a>

  * @author <a href="mailto:peter@courcoux.biz">Peter Courcoux</a>

  * @version $Id: TemplateSessionValidator.java 1854797 2019-03-04 20:41:39Z tv $

  */

 public class TemplateSessionValidator

     extends SessionValidator

 {

     /** Logging */

     private static Logger log = LogManager.getLogger(TemplateSessionValidator.class);

     /**

      * Execute the action.

      *

      * @param pipelineData Turbine information.

      * @throws Exception The anonymous user could not be obtained

      *         from the security service

      */

     @Override

     public void doPerform(PipelineData pipelineData) throws Exception

     {

         RunData data = pipelineData.getRunData();

         // Pull user from session.

         data.populate();

         // The user may have not logged in, so create a "guest/anonymous" user.

         if (data.getUser() == null)

         {

             log.debug("Creating an anonymous user object!");

             User anonymousUser = security.getAnonymousUser();

             data.setUser(anonymousUser);

             data.save();

         }

         // make sure we have some way to return a response

         if (!data.hasScreen() && StringUtils.isEmpty(

                 data.getTemplateInfo().getScreenTemplate()))

         {

             if (StringUtils.isNotEmpty(templateHomepage))

             {

                 data.getTemplateInfo().setScreenTemplate(templateHomepage);

             }

             else

             {

                 data.setScreen(screenHomepage);

             }

         } else {

             handleFormCounterToken(data, false);

         }

         // we do not want to allow both a screen and template parameter.

         // The template parameter is dominant.

         if (data.getTemplateInfo().getScreenTemplate() != null)

         {

             data.setScreen(null);

         }

         // Comply with Turbine 4.0 standards

         pipelineData.get(Turbine.class).put(User.class, data.getUser());

     }

 }