ForumUserServlet


1   /*
2    * $Header: /cvsroot/mvnforum/mvnforum/src/com/mvnforum/user/ForumUserServlet.java,v 1.21.2.5 2006/07/12 07:43:28 phuongpdd Exp $
3    * $Author: phuongpdd $
4    * $Revision: 1.21.2.5 $
5    * $Date: 2006/07/12 07:43:28 $
6    *
7    * ====================================================================
8    *
9    * Copyright (C) 2002-2006 by MyVietnam.net
10   *
11   * All copyright notices regarding mvnForum MUST remain 
12   * intact in the scripts and in the outputted HTML.
13   * The "powered by" text/logo with a link back to
14   * http://www.mvnForum.com and http://www.MyVietnam.net in 
15   * the footer of the pages MUST remain visible when the pages
16   * are viewed on the internet or intranet.
17   *
18   * This program is free software; you can redistribute it and/or modify
19   * it under the terms of the GNU General Public License as published by
20   * the Free Software Foundation; either version 2 of the License, or
21   * any later version.
22   *
23   * This program is distributed in the hope that it will be useful,
24   * but WITHOUT ANY WARRANTY; without even the implied warranty of
25   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
26   * GNU General Public License for more details.
27   *
28   * You should have received a copy of the GNU General Public License
29   * along with this program; if not, write to the Free Software
30   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
31   *
32   * Support can be obtained from support forums at:
33   * http://www.mvnForum.com/mvnforum/index
34   *
35   * Correspondence and Marketing Questions can be sent to:
36   * info at MyVietnam net
37   *
38   * @author: Minh Nguyen  
39   * @author: Mai  Nguyen  
40   */
41  package com.mvnforum.user;
42  
43  import java.io.IOException  ;
44  
45  import javax.servlet.ServletContext  ;
46  import javax.servlet.ServletException  ;
47  import javax.servlet.http.*;
48  
49  import com.mvnforum.*;
50  import com.mvnforum.auth.*;
51  import com.mvnforum.db.WatchBean;
52  import net.myvietnam.mvncore.db.DBUtils;
53  import net.myvietnam.mvncore.filter.IPFilter;
54  import net.myvietnam.mvncore.filter.UserAgentFilter;
55  import net.myvietnam.mvncore.util.*;
56  
57  import org.apache.commons.logging.Log;
58  import org.apache.commons.logging.LogFactory;
59  
60  public class ForumUserServlet extends HttpServlet {
61  
62      private static Log log = LogFactory.getLog(ForumUserServlet.class);
63  
64      private UserModuleProcessor userModuleProcessor  = null;
65      private static int count = 0;
66  
67      /**Initialize global variables*/
68      public void init() throws ServletException   {
69          /*
70          if (MVNForumConfig.isShouldRun() == false) {
71              throw new ServletException("Cannot init system. Reason = " + MVNForumConfig.getReason());
72          }*/
73          //log.debug(" USING LOGGING::::" + log.getClass());
74          userModuleProcessor  = new UserModuleProcessor(this);
75          // Check if the servlet is in specs Servlet 2.3 or later
76          if (MVNForumConfig.isShouldRun()) {
77              ServletContext   context = getServletContext();
78              int majorVersion = context.getMajorVersion();
79              int mimorVersion = context.getMinorVersion();
80              if ((majorVersion < 2) ||
81                  ((majorVersion == 2) && (mimorVersion < 3))) {
82                  MVNForumConfig.setShouldRun(false, "mvnForum requires Servlet 2.3 or later. Please upgrade your Servlet Container.");
83              }
84          }
85  
86          // schedule the WatchTask
87          if (MVNForumConfig.getEnableWatch()) {
88              if (MVNForumConfig.isShouldRun()) {
89                  log.info("Schedule the WatchTask.");
90                  if (MVNForumConfig.getDefaultWatchOption() == WatchBean.WATCH_OPTION_LIVE) {
91                      // The default watch is LIVE, so the timer is called more often (5 minutes)
92                      WatchTask.getInstance().schedule(DateUtil.MINUTE, DateUtil.MINUTE * 5);
93                  } else {
94                      // Other options, we only check the watch hourly
95                      WatchTask.getInstance().schedule(DateUtil.MINUTE, DateUtil.HOUR);
96                  }
97              }
98          } else {
99              log.info("Watch is disabled. Do not schedule the WatchTask.");
100         }
101 
102         // schedule the DeleteOrphanPmAttachmentTask
103         if (MVNForumConfig.isShouldRun()) {
104             log.info("Schedule the DeleteOrphanPmAttachmentTask.");
105             if (MVNForumConfig.getEnableMessageAttachment()) {
106                 //Repeated task
107                 DeleteOrphanPmAttachmentTask.getInstance().schedule(DateUtil.MINUTE, DateUtil.HOUR);
108             } else {
109                 // Try to delete the PmAttachment at least once time
110                 DeleteOrphanPmAttachmentTask.getInstance().schedule(DateUtil.MINUTE);
111             }
112         }
113         log.info("<<---- ForumUserServlet has been inited.  Detailed info: " + MVNForumInfo.getProductVersion() + " (Build: " + MVNForumInfo.getProductReleaseDate() + ") ---->>");
114     }
115 
116     /**Process the HTTP Get request*/
117     public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException  , IOException   {
118         process(request, response);
119     }
120 
121     /**Process the HTTP Post request*/
122     public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException  , IOException   {
123         process(request, response);
124     }
125 
126     public void process(HttpServletRequest request, HttpServletResponse response)
127         throws IOException  , ServletException   {
128 
129         if (MVNForumConfig.isShouldRun() == false) {
130             String   error = "Cannot init system. Reason : " + MVNForumConfig.getReason();
131             request.setAttribute("fatal_error_message", error);
132             getServletContext().getRequestDispatcher("/mvnplugin/mvnforum/mvnfatalerror.jsp").forward(request, response);
133             return;
134         }
135 
136         long startTime = 0;
137         if (log.isDebugEnabled()) {
138             startTime = System.currentTimeMillis();
139         }
140         count++;
141         try {
142             if (IPFilter.filter(request) == false) {
143                 getServletContext().getRequestDispatcher("/mvnplugin/mvnforum/404.jsp").forward(request, response);
144                 return;
145             }
146             if (UserAgentFilter.filter(request) == false) {
147                 getServletContext().getRequestDispatcher("/mvnplugin/mvnforum/404.jsp").forward(request, response);
148                 return;
149             }
150 
151             //request.setCharacterEncoding("utf-8");
152 
153             String   responseURI = null;
154             responseURI = ManagerFactory.getRequestProcessor().preLogin(request, response);
155 
156             // This will make sure that the user information is put in
157             // the request.
158             OnlineUserManager onlineUserManager = OnlineUserManager.getInstance();
159             OnlineUser onlineUser = onlineUserManager.getOnlineUser(request);
160             OnlineUserAction action = onlineUser.getOnlineUserAction();
161             
162             if (action.getRemoteAddr().equals(request.getRemoteAddr()) == false) {
163                 request.getRequestDispatcher("/mvnplugin/mvnforum/invalidsession.html").forward(request, response);
164                 return;
165             }
166             
167             // check the module is on. Otherwise, go to message inform that
168             // the module is Off now. Please access later when the admin change mode to on
169             if (MVNForumConfig.getShouldShowUserArea() == false) {
170                 if (!onlineUser.getPermission().canAdminSystem()) {
171                     request.getRequestDispatcher("/mvnplugin/mvnforum/turnoff.html").forward(request, response);
172                     return;
173                 }
174             }
175 
176             //Config.set(request, Config.FMT_FALLBACK_LOCALE, "en");
177             String   localeName = ParamUtil.getParameter(request, MVNForumConfig.getLocaleParameterName());
178             if (MVNForumConfig.supportLocale(localeName)) {
179                 onlineUser.setLocaleName(localeName);
180             }
181             I18nUtil.setLocaleInRequest(request, onlineUser.getLocale());
182 
183             // save Vietnamese typer mode if exists one
184             //MyUtil.saveVNTyperMode(request, response);
185 
186             if (null == responseURI) {
187                 responseURI = ManagerFactory.getRequestProcessor().preProcess(request, response);
188             }
189 
190             if (null == responseURI) {
191                 // this method should not throw Exception (it must catch all Exceptions)
192                 responseURI = userModuleProcessor.process(request, response);
193             }
194 
195             responseURI = ManagerFactory.getRequestProcessor().postProcess(request, response, responseURI);
196 
197             if ((null != responseURI) && !response.isCommitted()) {
198                 if (responseURI.startsWith("http://") || responseURI.startsWith("https://")) {
199                     response.sendRedirect(responseURI);
200                 } else {
201                     if (responseURI.endsWith(".jsp")) {
202                         request.getRequestDispatcher(responseURI).forward(request, response);
203                     } else {
204                         response.sendRedirect(request.getContextPath() + responseURI);
205                     }
206                 }
207             }
208         } catch (Exception   e) {
209             // so it should never go here
210             log.error("Error assertion", e);
211         } finally {
212             if (log.isDebugEnabled()) {
213                 long processTime = System.currentTimeMillis() - startTime;
214                 log.debug("ForumUserServlet processed " + count + " times. Took " + processTime + " miliseconds.\n");
215             }
216         }
217     }// process
218 
219     /**
220      * Clean up resources
221      */
222     public void destroy() {
223         // This code will release all connections currently pooled.
224         // The next call to #getConnection will recreate the pool.
225         DBUtils.closeAllConnections();
226 
227         //finally, cancel the TimerUtil
228         TimerUtil.getInstance().cancel();
229         log.info("<<---- ForumUserServlet has been destroyed. ---->>");
230     }
231 }
232
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