| package org.apache.turbine.modules.actions.sessionvalidator; |
| |
| /* ==================================================================== |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 2001-2003 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Apache" and "Apache Software Foundation" and |
| * "Apache Turbine" must not be used to endorse or promote products |
| * derived from this software without prior written permission. For |
| * written permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * "Apache Turbine", nor may "Apache" appear in their name, without |
| * prior written permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| |
| import org.apache.commons.configuration.Configuration; |
| |
| import org.apache.commons.lang.StringUtils; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| |
| import org.apache.turbine.Turbine; |
| import org.apache.turbine.TurbineConstants; |
| |
| import org.apache.turbine.pipeline.PipelineData; |
| import org.apache.turbine.services.security.TurbineSecurity; |
| |
| import org.apache.turbine.util.RunData; |
| import org.apache.turbine.util.TurbineException; |
| |
| /** |
| * The SessionValidator attempts to retrieve the User object from the |
| * Servlet API session that is associated with the request. If the |
| * data cannot be retrieved, it is handled here. If the user has not |
| * been marked as being logged into the system, the user is rejected |
| * and the screen is set to the screen.homepage value in |
| * TurbineResources.properties. |
| * |
| * <p> |
| * |
| * Other systems generally have a database table which stores this |
| * information, but we take advantage of the Servlet API here to save |
| * a hit to the database for each and every connection that a user |
| * makes. |
| * |
| * <p> |
| * |
| * This action is special in that it should only be executed by the |
| * Turbine servlet. |
| * |
| * @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 $Id$ |
| */ |
| public class DefaultSessionValidator |
| extends SessionValidator |
| { |
| /** Logging */ |
| private static Log log = LogFactory.getLog(DefaultSessionValidator.class); |
| |
| /** |
| * Execute the action. The default is to populate the RunData |
| * object and, if the user is unknown, to force a login screen (as |
| * set in the tr.props). |
| * |
| * @deprecated Use PipelineData version instead. |
| * @see org.apache.turbine.modules.screens.error.InvalidState |
| * @param data Turbine RunData context information. |
| * @throws TurbineException The anonymous user could not be obtained |
| * from the security service |
| */ |
| public void doPerform(RunData data) |
| throws TurbineException |
| { |
| Configuration conf = Turbine.getConfiguration(); |
| |
| // 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("Fixing up empty User Object!"); |
| data.setUser(TurbineSecurity.getAnonymousUser()); |
| data.save(); |
| } |
| |
| // Make sure the User has logged into the system. |
| if (!data.getUser().hasLoggedIn()) |
| { |
| // only set the message if nothing else has already set it |
| // (e.g. the LogoutUser action). |
| if (StringUtils.isEmpty(data.getMessage())) |
| { |
| data.setMessage(conf.getString(TurbineConstants.LOGIN_MESSAGE)); |
| } |
| |
| // set the screen to be the login page |
| data.setScreen(conf.getString(TurbineConstants.SCREEN_LOGIN)); |
| |
| // We're not doing any actions buddy! (except action.login which |
| // will have been performed already) |
| data.setAction(null); |
| } |
| |
| if (!data.hasScreen()) |
| { |
| data.setMessage(conf.getString( |
| TurbineConstants.LOGIN_MESSAGE_NOSCREEN)); |
| data.setScreen(conf.getString(TurbineConstants.SCREEN_HOMEPAGE)); |
| } |
| |
| if (data.getParameters().containsKey("_session_access_counter")) |
| { |
| // See comments in screens.error.InvalidState. |
| if (data.getParameters().getInt("_session_access_counter") |
| < (((Integer) data.getUser().getTemp( |
| "_session_access_counter")).intValue() - 1)) |
| { |
| data.getUser().setTemp("prev_screen", data.getScreen()); |
| data.getUser().setTemp("prev_parameters", data.getParameters()); |
| data.setScreen(conf.getString( |
| TurbineConstants.SCREEN_INVALID_STATE)); |
| data.setAction(""); |
| } |
| } |
| } |
| |
| /** |
| * Execute the action. The default is to populate the RunData |
| * object and, if the user is unknown, to force a login screen (as |
| * set in the tr.props). |
| * |
| * @see org.apache.turbine.modules.screens.error.InvalidState |
| * @param pipelineData Turbine PipelineData context information. |
| * @throws TurbineException The anonymous user could not be obtained |
| * from the security service |
| */ |
| public void doPerform(PipelineData pipelineData) |
| throws TurbineException |
| { |
| RunData data = (RunData) getRunData(pipelineData); |
| doPerform(data); |
| } |
| |
| } |