001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.kernel.servlet;
016    
017    import com.liferay.portal.kernel.log.Log;
018    import com.liferay.portal.kernel.log.LogFactoryUtil;
019    import com.liferay.portal.kernel.portlet.LiferayPortletSession;
020    import com.liferay.portal.kernel.portlet.PortletFilterUtil;
021    import com.liferay.portal.kernel.util.JavaConstants;
022    import com.liferay.portal.kernel.util.WebKeys;
023    
024    import java.io.IOException;
025    
026    import javax.portlet.PortletException;
027    import javax.portlet.PortletRequest;
028    import javax.portlet.PortletResponse;
029    import javax.portlet.filter.FilterChain;
030    
031    import javax.servlet.ServletException;
032    import javax.servlet.http.HttpServlet;
033    import javax.servlet.http.HttpServletRequest;
034    import javax.servlet.http.HttpServletResponse;
035    import javax.servlet.http.HttpSession;
036    
037    /**
038     * @author Brian Wing Shun Chan
039     */
040    public class PortletServlet extends HttpServlet {
041    
042            public static final String PORTLET_APP =
043                    "com.liferay.portal.model.PortletApp";
044    
045            /**
046             * @deprecated As of 6.2.0, replaced by {@link
047             *             PluginContextListener#PLUGIN_CLASS_LOADER}
048             */
049            public static final String PORTLET_CLASS_LOADER =
050                    PluginContextListener.PLUGIN_CLASS_LOADER;
051    
052            public static final String PORTLET_SERVLET_CONFIG =
053                    "com.liferay.portal.kernel.servlet.PortletServletConfig";
054    
055            public static final String PORTLET_SERVLET_FILTER_CHAIN =
056                    "com.liferay.portal.kernel.servlet.PortletServletFilterChain";
057    
058            public static final String PORTLET_SERVLET_REQUEST =
059                    "com.liferay.portal.kernel.servlet.PortletServletRequest";
060    
061            public static final String PORTLET_SERVLET_RESPONSE =
062                    "com.liferay.portal.kernel.servlet.PortletServletResponse";
063    
064            @Override
065            public void service(
066                            HttpServletRequest request, HttpServletResponse response)
067                    throws IOException, ServletException {
068    
069                    if (request.getAttribute(WebKeys.EXTEND_SESSION) != null) {
070                            request.removeAttribute(WebKeys.EXTEND_SESSION);
071    
072                            HttpSession session = request.getSession(false);
073    
074                            if (session != null) {
075                                    session.setAttribute(WebKeys.EXTEND_SESSION, Boolean.TRUE);
076    
077                                    session.removeAttribute(WebKeys.EXTEND_SESSION);
078                            }
079    
080                            return;
081                    }
082    
083                    String portletId = (String)request.getAttribute(WebKeys.PORTLET_ID);
084    
085                    PortletRequest portletRequest = (PortletRequest)request.getAttribute(
086                            JavaConstants.JAVAX_PORTLET_REQUEST);
087    
088                    PortletResponse portletResponse = (PortletResponse)request.getAttribute(
089                            JavaConstants.JAVAX_PORTLET_RESPONSE);
090    
091                    String lifecycle = (String)request.getAttribute(
092                            PortletRequest.LIFECYCLE_PHASE);
093    
094                    FilterChain filterChain = (FilterChain)request.getAttribute(
095                            PORTLET_SERVLET_FILTER_CHAIN);
096    
097                    LiferayPortletSession portletSession =
098                            (LiferayPortletSession)portletRequest.getPortletSession();
099    
100                    portletRequest.setAttribute(WebKeys.PORTLET_ID, portletId);
101                    portletRequest.setAttribute(PORTLET_SERVLET_CONFIG, getServletConfig());
102                    portletRequest.setAttribute(PORTLET_SERVLET_REQUEST, request);
103                    portletRequest.setAttribute(PORTLET_SERVLET_RESPONSE, response);
104    
105                    HttpSession session = request.getSession();
106    
107                    PortletSessionTracker.add(session);
108    
109                    portletSession.setHttpSession(session);
110    
111                    try {
112                            PortletFilterUtil.doFilter(
113                                    portletRequest, portletResponse, lifecycle, filterChain);
114                    }
115                    catch (PortletException pe) {
116                            _log.error(pe, pe);
117    
118                            throw new ServletException(pe);
119                    }
120            }
121    
122            private static Log _log = LogFactoryUtil.getLog(PortletServlet.class);
123    
124    }