001package org.apache.turbine.modules.actions.sessionvalidator; 002 003/* 004 * Licensed to the Apache Software Foundation (ASF) under one 005 * or more contributor license agreements. See the NOTICE file 006 * distributed with this work for additional information 007 * regarding copyright ownership. The ASF licenses this file 008 * to you under the Apache License, Version 2.0 (the 009 * "License"); you may not use this file except in compliance 010 * with the License. You may obtain a copy of the License at 011 * 012 * http://www.apache.org/licenses/LICENSE-2.0 013 * 014 * Unless required by applicable law or agreed to in writing, 015 * software distributed under the License is distributed on an 016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 017 * KIND, either express or implied. See the License for the 018 * specific language governing permissions and limitations 019 * under the License. 020 */ 021 022import org.apache.commons.lang3.StringUtils; 023import org.apache.logging.log4j.Logger; 024import org.apache.logging.log4j.LogManager; 025import org.apache.turbine.Turbine; 026import org.apache.turbine.om.security.User; 027import org.apache.turbine.pipeline.PipelineData; 028import org.apache.turbine.util.RunData; 029 030/** 031 * SessionValidator for use with the Template Service, the 032 * TemplateSessionValidator is virtually identical to the 033 * {@link TemplateSecureSessionValidator} except that it does not transfer to the 034 * login page when it detects a null user (or a user not logged in). 035 * 036 * <p>The Template Service requires a different Session Validator 037 * because of the way it handles screens. 038 * 039 * @see TemplateSecureSessionValidator 040 * @author <a href="mailto:john.mcnally@clearink.com">John D. McNally</a> 041 * @author <a href="mailto:mbryson@mont.mindspring.com">Dave Bryson</a> 042 * @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a> 043 * @author <a href="mailto:peter@courcoux.biz">Peter Courcoux</a> 044 * @version $Id$ 045 */ 046public class TemplateSessionValidator 047 extends SessionValidator 048{ 049 /** Logging */ 050 private static Logger log = LogManager.getLogger(TemplateSessionValidator.class); 051 052 /** 053 * Execute the action. 054 * 055 * @param pipelineData Turbine information. 056 * @throws Exception The anonymous user could not be obtained 057 * from the security service 058 */ 059 @Override 060 public void doPerform(PipelineData pipelineData) throws Exception 061 { 062 RunData data = pipelineData.getRunData(); 063 // Pull user from session. 064 data.populate(); 065 066 // The user may have not logged in, so create a "guest/anonymous" user. 067 if (data.getUser() == null) 068 { 069 log.debug("Creating an anonymous user object!"); 070 User anonymousUser = security.getAnonymousUser(); 071 data.setUser(anonymousUser); 072 data.save(); 073 } 074 075 // Make sure we have some way to return a response 076 if (!data.hasScreen() && StringUtils.isEmpty( 077 data.getTemplateInfo().getScreenTemplate())) 078 { 079 if (StringUtils.isNotEmpty(templateHomepage)) 080 { 081 data.getTemplateInfo().setScreenTemplate(templateHomepage); 082 } 083 else 084 { 085 data.setScreen(screenHomepage); 086 } 087 } else { 088 handleFormCounterToken(data, false); 089 } 090 091 // We do not want to allow both a screen and template parameter. 092 // The template parameter is dominant. 093 if (data.getTemplateInfo().getScreenTemplate() != null) 094 { 095 data.setScreen(null); 096 } 097 098 // Comply with Turbine 4.0 standards 099 pipelineData.get(Turbine.class).put(User.class, data.getUser()); 100 } 101}