adminmoduleprocessor.java

easy to use, easy to setup bulletin board (forum)

/*
 * Copyright (C) 2002 by MyVietnam.net
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or any later version.
 *
 * All copyright notices regarding mvnForum
 * must remain intact in the scripts and in the outputted HTML
 * The "powered by" text/logo with a link back to
 * http://www.mvnForum.com and http://www.MyVietnam.net in the footer of the pages MUST
 * remain visible when the pages are viewed on the internet or intranet.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * Support can be obtained from support forums at:
 * http://www.mvnForum.com/mvnforum/index
 *
 * Correspondence and Marketing Questions can be sent to:
 * [e-mail]
 *
 * @author: Minh Nguyen  [e-mail]
 * @author: Mai  Nguyen  [e-mail]
 */
package net.myvietnam.mvnplugin.mvnforum.admin;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.IOException;
import net.myvietnam.mvncore.exception.*;
import net.myvietnam.mvncore.util.*;
import net.myvietnam.mvnplugin.mvnforum.db.*;
import net.myvietnam.mvnplugin.mvnforum.URLMap;
import net.myvietnam.mvnplugin.mvnforum.auth.*;

public class AdminModuleProcessor {

    private HttpServlet     adminServlet    = null;
    private ServletContext  servletContext  = null;

    private AdminURLMapHandler          urlMapHandler               = new AdminURLMapHandler();
    private ForumWebHandler             forumWebHandler             = new ForumWebHandler();
    private CategoryWebHandler          categoryWebHandler          = new CategoryWebHandler();
    private MemberWebHandler            memberWebHandler            = new MemberWebHandler();
    private GroupsWebHandler            groupsWebHandler            = new GroupsWebHandler();
    private MemberGroupWebHandler       memberGroupWebHandler       = new MemberGroupWebHandler();
    private GroupPermissionWebHandler   groupPermissionWebHandler   = new GroupPermissionWebHandler();
    private GroupForumWebHandler        groupForumWebHandler        = new GroupForumWebHandler();
    private GeneralAdminTasksWebHandler generalAdminTasksWebHandler = new GeneralAdminTasksWebHandler();
    private OnlineUserManager           onlineUserManager           = OnlineUserManager.getInstance();


    public AdminModuleProcessor(HttpServlet servlet) {
        adminServlet    = servlet;
        servletContext  = servlet.getServletContext();
    }

    public void process(HttpServletRequest request, HttpServletResponse response)
        throws IOException, ServletException {

        long start = System.currentTimeMillis();
        String requestURI = StringUtil.getEmptyStringIfNull(request.getPathInfo());
        String responseURI = null;
        System.out.println("AdminModuleProcessor : requestURI  = " + requestURI);

        // step 1: some command need to be processed before we do the URI mapping (of the MODAL)
        try {
            // always check for Authenticated User
            OnlineUser onlineUser = onlineUserManager.getOnlineUser(request);
            MVNForumPermission permission = onlineUser.getPermission();
            if ( !requestURI.equals("") &&
                 !requestURI.equals("/") &&
                 !requestURI.equals("/login") &&
                 !requestURI.equals("/loginprocess") &&
                 !requestURI.equals("/logout")) {
                permission.ensureIsAuthenticated();
            }

            if (requestURI.equals("/forummanagement")) {
                permission.ensureCanAdminSystem();// need a lesser permission
            } else if (requestURI.equals("/editforumpermission")) {
                groupsWebHandler.prepareList(request);
            } else if (requestURI.equals("/editgroupforumpermission")) {
                groupForumWebHandler.prepareList(request);
            } else if (requestURI.equals("/updategroupforumpermission")) {
                groupForumWebHandler.processUpdate(request);
            } else if (requestURI.equals("/addforumprocess")) {
                forumWebHandler.processAdd(request);
            } else if (requestURI.equals("/editforum")) {
                forumWebHandler.prepareEdit(request);
            } else if (requestURI.equals("/updateforum")) {
                forumWebHandler.processUpdate(request);
            } else if (requestURI.equals("/listforums")) {
                forumWebHandler.prepareList(request);
            } else if (requestURI.equals("/updateforumorder")) {
                forumWebHandler.processUpdateForumOrder(request);

            } else if (requestURI.equals("/addcategoryprocess")) {
                categoryWebHandler.processAdd(request);
            } else if (requestURI.equals("/editcategory")) {
                categoryWebHandler.prepareEdit(request);
            } else if (requestURI.equals("/updatecategory")) {
                categoryWebHandler.processUpdate(request);
            } else if (requestURI.equals("/listcategories")) {
                categoryWebHandler.prepareList(request);
            } else if (requestURI.equals("/updatecategoryorder")) {
                categoryWebHandler.processUpdateCategoryOrder(request);

            /*
            } else if (requestURI.equals("/listrecentdisablemessage")) {
                //messageWebHandler.listRecentDisableMessage(request);
            } else if (requestURI.equals("/editpost")) {
                //messageWebHandler.prepareEdit_forAdmin(request);
            } else if (requestURI.equals("/updatepost")) {
                //messageWebHandler.processUpdate_forAdmin(request);
            */
            } else if (requestURI.equals("/usermanagement")) {
                memberWebHandler.prepareListMembers_forPublic(request);
            } else if (requestURI.equals("/addmemberprocess")) {
                memberWebHandler.processAdd(request);

            } else if (requestURI.equals("/addgroupprocess")) {
                groupsWebHandler.processAdd(request);
            } else if (requestURI.equals("/groupmanagement")) {
                groupsWebHandler.prepareList(request);
            } else if (requestURI.equals("/viewgroup")) {
                groupsWebHandler.prepareView(request);
            } else if (requestURI.equals("/editgroupinfo")) {
                groupsWebHandler.prepareView(request);
            } else if (requestURI.equals("/updategroupinfo")) {
                groupsWebHandler.processUpdate(request);
            } else if (requestURI.equals("/editgroupowner")) {
                groupsWebHandler.prepareView(request);
            } else if (requestURI.equals("/updategroupowner")) {
                groupsWebHandler.processUpdateGroupOwner(request);
            } else if (requestURI.equals("/listmembergroup")) {
                memberGroupWebHandler.prepareList_inGroup_limit(request);
            } else if (requestURI.equals("/addmembergroup")) {
                groupsWebHandler.prepareView(request);
            } else if (requestURI.equals("/addmembergroupprocess")) {
                memberGroupWebHandler.processAdd(request);
            } else if (requestURI.equals("/editgrouppermission")) {
                groupPermissionWebHandler.prepareList(request);
            } else if (requestURI.equals("/updategrouppermission")) {
                groupPermissionWebHandler.processUpdate(request);

            } else if (requestURI.equals("/index")) {
                generalAdminTasksWebHandler.prepareShowIndex(request);
            } else if (requestURI.equals("/testsystem")) {
                generalAdminTasksWebHandler.prepareTestSystem(request);
            } else if (requestURI.equals("/sendmail")) {
                generalAdminTasksWebHandler.prepareSendMail(request);
            } else if (requestURI.equals("/sendmailprocess")) {
                generalAdminTasksWebHandler.sendMail(request);
            } else if (requestURI.equals("/matrix")) {
                /** @todo check and remove it */
                //generalAdminTasksWebHandler.prepareShowAdminHomepage(request);
            } else if (requestURI.equals("/loginprocess")) {
                onlineUserManager.processLogin(request);
                String originalRequest = ParamUtil.getAttribute(request.getSession(), "OriginalRequest");
                if (originalRequest.length() > 0) {
                    request.getSession().setAttribute("OriginalRequest", "");
                    responseURI = originalRequest;
                }
            } else if (requestURI.equals("/logout")) {
                onlineUserManager.logout(request);
                request.setAttribute("Reason", "Logout successfully.");
            }
        } catch (AuthenticationException e) {
            // make sure not from login page, we cannot set original request in this situation
            // and also make sure the request's method must be GET to set the OriginalRequest
            /** @todo what if not enough right ??? */
            if ((e.getReason() == NotLoginException.NOT_LOGIN) && (request.getMethod().equals("GET"))) {
                String url = AdminModuleConfig.URL_PATTERN + requestURI + "?" + StringUtil.getEmptyStringIfNull(request.getQueryString());
                request.getSession().setAttribute("OriginalRequest", url);
            }

            requestURI = "/login";
            request.setAttribute("Reason", e.getReasonExplanation());
        } catch (Exception e) {
            e.printStackTrace();
            requestURI = "/error";
            request.getSession().setAttribute("ErrorMessage", StringUtil.getEmptyStringIfNull(e.getMessage()));
        }

        // step 2: map the URI (of the CONTROLLER)
        try {
            // See note in the ActionInUserModule
            Action action = new ActionInAdminModule(request, requestURI);// may throw MissingURLMapEntryException
            onlineUserManager.updateOnlineUserAction(request, action);

            if (responseURI == null) {
                URLMap map = urlMapHandler.getMap(requestURI, request);
                responseURI = map.getResponse();
            }
        } catch (MissingURLMapEntryException e) {
            System.out.println("Exception: missing urlmap entry in admin module");
            responseURI = "/mvnplugin/mvnforum/admin/error.jsp";
            request.getSession().setAttribute("ErrorMessage", e.getMessage());
        } catch (Exception e) {
            // This will catch AuthenticationException, AssertionException, DatabaseException
            // in the method onlineUserManager.updateOnlineUserAction(request, action)
            responseURI = "/mvnplugin/mvnforum/user/error.jsp";
            request.getSession().setAttribute("ErrorMessage", e.getMessage());
        }

        // step 3: forward or dispatch to the VIEW
        long duration = System.currentTimeMillis() - start;
        System.out.println("AdminModuleProcessor : responseURI = " + responseURI + ". (" + duration + " ms)\n");
        if (responseURI.endsWith(".jsp")) {
            servletContext.getRequestDispatcher(responseURI).forward(request, response);
        } else {
            response.sendRedirect(ParamUtil.getContextPath() + responseURI);
        }
    }// process method
}