managegroups.java

java 写的一个新闻发布系统

// $Id: ManageGroups.java,v 1.15 2003/02/10 16:03:55 shuber Exp $
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//    _______|  /--|    |    |    -   \  _    |    :    -   \_________
//   \\______: :---|    :    :           |    :    |         \________>
//           |__\---\_____________:______:    :____|____:_____\
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//              . . . i n   j a h i a   w e   t r u s t . . .
//
//

package org.jahia.admin.users;

import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.security.Principal;
import java.util.*;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.jahia.admin.homepages.HomePageTool;
import org.jahia.services.homepages.*;
import org.jahia.bin.Jahia;
import org.jahia.bin.JahiaAdministration;
import org.jahia.exceptions.JahiaException;
import org.jahia.params.ParamBean;
import org.jahia.registries.ServicesRegistry;
import org.jahia.services.pages.JahiaPageBaseService;
import org.jahia.services.sites.JahiaSite;
import org.jahia.services.sites.JahiaSitesService;
import org.jahia.services.usermanager.*;
import org.jahia.utils.JahiaConsole;
import org.jahia.utils.JahiaString;
import org.jahia.utils.JahiaTools;
import org.jahia.viewhelper.UsersViewHelper;

/**
 * desc:  This class is used by the administration to manage groups
 * (add a user to a group, and for adding, editing and deleting groups) in
 * Jahia portal.
 *
 * Copyright:    Copyright (c) 2002
 * Company:      Jahia Ltd
 *
 * @author AK
 * @author MJ
 * @author MAP
 * @version 2.0
 */

public class ManageGroups
{
    private static final String CLASS_NAME =  ManageGroups.class.getName();

    private static final String JSP_PATH =  JahiaAdministration.JSP_PATH;

    private static JahiaUserManagerService uMgr;
    private static JahiaGroupManagerService gMgr;
    private static JahiaSiteUserManagerService uSiteMgr;
    private JahiaSite jahiaSite;
    private String groupMessage = "";
    private static HashSet groupMembers; // Contain the group members of the selected group list

    private static UsersViewHelper usersViewHelper;

    private HomePageTool homePageTool = null;
    private GroupMembersTool groupMembersTool = null;

    /**
     * Default constructor.
     *
     * @param   request       Servlet request.
     * @param   response      Servlet response.
     * @param   session       Servlet session for the current user.
     * @throws Throwable
     */
    public ManageGroups(HttpServletRequest request,
                        HttpServletResponse response,
                        HttpSession session)
    throws Throwable
    {
        // get services...
        ServicesRegistry sReg =  ServicesRegistry.getInstance();
        if (sReg != null) {
            uMgr =  sReg.getJahiaUserManagerService();
            gMgr =  sReg.getJahiaGroupManagerService();
            uSiteMgr = sReg.getJahiaSiteUserManagerService();
        }
        // get the current website. get the jahiaserver if it's null...
        jahiaSite =  (JahiaSite) session.getAttribute( ParamBean.SESSION_SITE );
        usersViewHelper = new UsersViewHelper(jahiaSite);

        if (jahiaSite == null) {
            JahiaSitesService sitesService = sReg.getJahiaSitesService();
            jahiaSite = sitesService.getSite(0);
            session.setAttribute( ParamBean.SESSION_SITE, jahiaSite );
        }
        userRequestDispatcher( request, response, session );
    } // end constructor



    /**
     * This method is used like a dispatcher for user requests.
     *
     * @param request
     * @param response
     * @param session
     * @throws Throwable
     */
    private void userRequestDispatcher( HttpServletRequest    request,
                                        HttpServletResponse   response,
                                        HttpSession           session )
    throws Throwable
    {
        String operation = request.getParameter("sub");

        if (operation.equals("display")) {
            displayGroupList(request, response, session );
        } else if (operation.equals("create")) {
            displayGroupCreate( request, response, session);
        } else if (operation.equals("edit")) {
            displayGroupEdit(request, response, session);
        } else if (operation.equals("membership")) {
            displayGroupMembership( request, response, session );
        } else if (operation.equals("copy")) {
            displayGroupCopy(request, response, session);
        } else if (operation.equals("remove")) {
            displayGroupRemove(request, response, session);
        } else if (operation.equals("processCreate")) {
            if (processGroupCreate(request, response, session)) {
                displayGroupList(request, response, session);
            } else {
                displayGroupCreate(request, response, session);
            }
        } else if (operation.equals("processEdit")) {
            processGroupEdit(request, response, session);
            displayGroupList(request, response, session);
        } else if (operation.equals("processRemove")) {
            processGroupRemove(request, response, session);
        } else if (operation.equals("processCopy")) {
            if (processGroupCopy(request, response, session)) {
                displayGroupList(request, response, session);
            } else {
                displayGroupCopy(request, response, session);
            }
        } else if (operation.equals("homepage")) {
            processHomePage(request, response, session);
        } else if (operation.equals("groupmembers")) {
            processGroupMembers(request, response, session);
        }
    }

    /**
    * Forward the servlet request and servlet response objects, using the request
    * dispatcher (from the ServletContext). Note: please be careful, use only
    * context relative path.
    *
    * @param request
    * @param response
    * @param session
    * @param target context-relative path.
    * @throws IOException
    * @throws ServletException
    */
    private void doRedirect( HttpServletRequest request,
                             HttpServletResponse response,
                             HttpSession session,
                             String target )
    throws IOException, ServletException
    {
        try
        {
            request.setAttribute("currentSiteBean",jahiaSite);

            // check null warning msg
            if( request.getAttribute("warningMsg") == null ) {
                request.setAttribute("warningMsg", "");
            }

            // check null jsp bottom message, and fill in if necessary...
            if( request.getAttribute("msg") == null ) {
                request.setAttribute("msg", Jahia.COPYRIGHT);
            }

            if( request.getAttribute("focus") == null ) {
                request.setAttribute("focus", "-none-");
            }

            // check null configuration step title, and fill in if necessary...
            if( request.getAttribute("title") == null ) {
                request.setAttribute("title", "Manage Groups");
            }

            // get browser entity...
            String userAgent = request.getHeader("user-agent");

            // redirect!
            JahiaAdministration.doRedirect( request, response, session, target );

        } catch (IOException ie) {
            JahiaConsole.println(CLASS_NAME+".doRedirect() :" , "error " + ie.getMessage());
        } catch (ServletException se) {
            JahiaConsole.println(CLASS_NAME+".doRedirect() :",  "error " + se.getMessage());
        }
    }

     /**
      * Display the group list.
      *
      * @param request
      * @param response
      * @param session
      * @throws IOException
      * @throws ServletException
      */
    private void displayGroupList( HttpServletRequest    request,
                                   HttpServletResponse   response,
                                   HttpSession           session )
    throws IOException, ServletException
    {
        // get list of groups...
        request.setAttribute("resultList", getGroupListForDisplay(gMgr.getGroupList(jahiaSite.getID())));
        request.setAttribute("currentSite", jahiaSite.getServerName());
        request.setAttribute("jspSource", JSP_PATH + "/group_management/group_management.jsp");
        request.setAttribute("directMenu", JSP_PATH + "/direct_menu.jsp");
        request.setAttribute("groupSearch", JSP_PATH + "/group_management/group_search.jsp");
        session.setAttribute("jahiaDisplayMessage", Jahia.COPYRIGHT);
        session.setAttribute("groupMessage", groupMessage);
        // Remove any home page definition from the session.
        session.setAttribute("homePageID", null);
        session.setAttribute("homePageLabel", null);
        doRedirect(request, response, session, JSP_PATH + "/admin.jsp");
        groupMessage = "";
    }

     /**
      * Display a form destinated to create a group.
      *
      * @param request
      * @param response
      * @param session
      * @throws IOException
      * @throws ServletException
      * @throws JahiaException
      */
    private void displayGroupCreate( HttpServletRequest   request,
                                     HttpServletResponse  response,
                                     HttpSession          session )
    throws IOException, ServletException, JahiaException
    {

        JahiaConsole.println(CLASS_NAME + ".displayGroupCreate","Started");
        request.setAttribute("groupName", JahiaTools.nnString(request.getParameter("groupName")));

        // Is here any home page definition ?
        JahiaHomepagesService hpServ = ServicesRegistry.getInstance().getJahiaHomepagesService();
        JahiaHomepage homePage = hpServ.getHomepage(jahiaSite.getGroupDefaultHomepageDef());
        if (homePage != null) {
            JahiaHomepageLink homePageLink = (JahiaHomepageLink)homePage;
            session.setAttribute("homePageID", new Integer(homePageLink.getPageID()));
            request.setAttribute("defaultHomePage", JahiaPageBaseService.getInstance().
                lookupPageWhitoutTemplates(homePageLink.getPageID()).getTitle() +
                " (" + homePage.getName() + ")");
        }
        request.setAttribute("jspSource", JSP_PATH + "/group_management/group_create.jsp");
        request.setAttribute("directMenu", JSP_PATH + "/direct_menu.jsp");
        session.setAttribute("groupMessage", groupMessage);
        session.setAttribute("jahiaDisplayMessage",  Jahia.COPYRIGHT);
        doRedirect(request, response, session, JSP_PATH + "/admin.jsp" );
        groupMessage = "";
    }

    /**
     * Create the new group in the jahia DB.
     *
     * @param request
     * @param response
     * @param session
     * @return true if group successfully created.
     * @throws IOException
     * @throws ServletException
     * @throws JahiaException
     */
    private boolean processGroupCreate(HttpServletRequest request,
                                       HttpServletResponse response,
                                       HttpSession session)
    throws IOException, ServletException, JahiaException