managetemplates.java

java 写的一个新闻发布系统

// $Id: ManageTemplates.java,v 1.4 2002/04/04 08:13:24 pmartin Exp $
//
//                                   ____.
//                       __/\ ______|    |__/\.     _______
//            __   .____|    |       \   |    +----+       \
//    _______|  /--|    |    |    -   \  _    |    :    -   \_________
//   \\______: :---|    :    :           |    :    |         \________>
//           |__\---\_____________:______:    :____|____:_____\
//                                      /_____|
//
//              . . . i n   j a h i a   w e   t r u s t . . .
//
//
//  ManageTemplates
//
//  01.04.2001  AK  added in jahia.
//  17.05.2001  NK  Integrate License Check.
//

package org.jahia.admin.templates;

import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;

import org.jahia.bin.*;
import org.jahia.utils.*;
import org.jahia.utils.properties.*;
import org.jahia.registries.*;
import org.jahia.exceptions.*;
import org.jahia.params.*;

import org.jahia.data.webapps.*;
import org.jahia.data.applications.*;
import org.jahia.services.sites.JahiaSite;
import org.jahia.data.templates.*;

import org.jahia.services.database.*;
import org.jahia.services.usermanager.*;
import org.jahia.services.templates_deployer.*;
import org.jahia.services.sites.*;
import org.jahia.services.pages.*;

import org.jahia.security.license.*;


/**
 * desc:  This class is used by the administration to manage
 * all the templates you've on your Jahia portal. You can add a
 * template, edit, change the visibility of the template and edit
 * its options. You can also view non-installed templates.
 *
 * Copyright:    Copyright (c) 2002
 * Company:      Jahia Ltd
 *
 * @author Khue N'Guyen
 * @author Alexandre Kraft
 * @version 1.0
 */
public class ManageTemplates
{
    private static final String     CLASS_NAME          =  JahiaAdministration.CLASS_NAME;
    private static final String     JSP_PATH            =  JahiaAdministration.JSP_PATH;

    private static ServletContext   context;

    private JahiaSite site;
    private JahiaUser user;
    private ServicesRegistry sReg;

    private LicenseKey mLicenseKey;


    /**
     * Default constructor.
     * @author  Alexandre Kraft
     *
     * @param   request       Servlet request.
     * @param   response      Servlet response.
     * @param   session       Servlet session for the current user.
     * @param   context       Servlet context.
     */
    public ManageTemplates( HttpServletRequest       request,
                            HttpServletResponse      response,
                            HttpSession              session,
                            ServletContext           context )
    throws Throwable
    {
        this.context =  context;

        mLicenseKey = Jahia.getLicenseKey();
        if ( mLicenseKey == null ){
            // set request attributes...
            request.setAttribute("jahiaDisplayMessage",  "Invalid License Key");
            // redirect...
            JahiaAdministration.doRedirect( request, response, session, JSP_PATH + "menu.jsp" );
            return;
        }

        userRequestDispatcher( request, response, session );
    } // end constructor



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

        sReg = ServicesRegistry.getInstance();

        // check if the user has really admin access to this site...
        user     =  (JahiaUser) session.getAttribute( ParamBean.SESSION_USER );
        site =  (JahiaSite) session.getAttribute( ParamBean.SESSION_SITE );

        if ( site != null && user != null && sReg != null ){

            if ( JahiaSiteTools.getAdminGroup(site).isMember(user) ){

                // set the new site id to administrate...
                request.setAttribute( "site", site );

                if(operation.equals("display")) {
                    displayTemplateList( request, response, session );
                } else if(operation.equals("displaynewlist")) {
                    displayNewTemplateList( request, response, session );
                } else if(operation.equals("details")) {
                    displayNewTemplateDetail( request, response, session );
                } else if(operation.equals("edit")) {
                    editTemplate( request, response, session );
                } else if(operation.equals("options")) {
                    editTemplateOption( request, response, session );
                } else if(operation.equals("add")) {
                    addTemplate( request, response, session );
                } else if(operation.equals("swap")) {
                    processSwap( request, response, session );
                }
            } else {
                //System.out.println(" --> no admin access on this site <--");
                request.setAttribute("jahiaDisplayMessage", "An error occured while processing your request");
                JahiaAdministration.doRedirect( request, response, session, JSP_PATH + "menu.jsp" );
            }
        } else {
            request.setAttribute("jahiaDisplayMessage", "An error occured while processing your request");
            JahiaAdministration.doRedirect( request, response, session, JSP_PATH + "menu.jsp" );
        }

    } // userRequestDispatcher



    //-------------------------------------------------------------------------
    /**
     * Display a list of the templates.
     *
     * @author  NK
     * @param   request         Servlet request.
     * @param   response        Servlet response.
     * @param   session         HttpSession object.
     */
    private void displayTemplateList( HttpServletRequest   request,
                                      HttpServletResponse  response,
                                      HttpSession          session )
    throws Throwable

    {

        try {

            JahiaPageTemplateService pageTempServ =
            sReg.getJahiaPageTemplateService();

            if ( pageTempServ == null ){
                throw new JahiaException(	"Unavailable Services",
                                            "Unavailable Services",
                                            JahiaException.SERVICE_ERROR,
                                            JahiaException.ERROR );
            }

            Enumeration enum = pageTempServ.getPageTemplates (site.getID(), false);
            request.setAttribute("templList", enum);

            JahiaAdministration.doRedirect( request,
                                            response,
                                            session,
                                            JSP_PATH + "manage_templates.jsp" );

        } catch ( JahiaException je ){
            request.setAttribute("jahiaDisplayMessage",
                                    "An error occured while processing your request");
            JahiaAdministration.doRedirect( request,
                                            response,
                                            session,
                                            JSP_PATH + "menu.jsp" );
        }


    } // end displayTemplateList


    //-------------------------------------------------------------------------
    /**
     * Display the edit form for a single template.
     *
     * @author  NK
     * @param   request         Servlet request.
     * @param   response        Servlet response.
     * @param   session         HttpSession object.
     */
    private void editTemplate( 	HttpServletRequest   request,
                                HttpServletResponse  response,
                                HttpSession          session )
    throws Throwable
    {

        try {

            JahiaPageTemplateService pageTempServ =
            sReg.getJahiaPageTemplateService();

            JahiaTemplatesDeployerService tempDepServ =
            sReg.getJahiaTemplatesDeployerService();

            JahiaSitesService sitesServ =
            sReg.getJahiaSitesService();

            JahiaPageService pageServ =
            sReg.getJahiaPageService();

            if ( pageTempServ == null
                || tempDepServ == null
                || sitesServ == null
                || pageServ == null ){
                throw new JahiaException(	"Unavailable Services",
                                            "Unavailable Services",
                                            JahiaException.SERVICE_ERROR,
                                            JahiaException.ERROR );
            }

            // get paramater
            String strVal = request.getParameter("templid");
            if ( strVal != null ){
                int id = Integer.parseInt(strVal);
                JahiaPageDefinition templ = pageTempServ.lookupPageTemplate (id);

                // this is here so it doesn't overwrite the value set after critical pages check...
                request.setAttribute("canDelete",  Boolean.TRUE );

                if ( templ != null ){

                    String  subAction     =  (String) request.getParameter("subaction");

                    // Override subAction if we are performing a template swap before
                    // template deletion
                    Integer processedSwap =  (Integer)request.getAttribute("processedSwap");
                    if ( processedSwap != null && processedSwap.intValue() == 1 ) {
                        subAction         =  "confirmdelete";
                    }

                    if ( subAction == null ){
                        subAction = "";
                    }

                    if ( subAction.equals("delete") ) {
                        String undeploy = (String)request.getParameter("undeploy");

                        if ( undeploy != null ){
                            tempDepServ.undeploy(templ);
                        }

                        pageTempServ.deletePageTemplate(templ.getID());
                        displayTemplateList(request,response,session);
                        return;

                    } else if ( subAction.equals("confirmdelete") ) {

                        // check if some pages are using this template (in the CURRENT site)
                        Vector pageIDs       =  pageServ.getPageIDsInSite(site.getID());
                        List   criticalPages =  new ArrayList();
                        int    mTemplID      =  templ.getID();

                        for (int i=0; i<pageIDs.size(); i++) {

                            int  pageID      = ((Integer)pageIDs.get(i)).intValue();

                            try {
                                JahiaPage page       =  (JahiaPage) pageServ.lookupPage(pageID);
                                int       templateID =  page.getPageTemplateID();

                                if (templateID == mTemplID) {
                                    criticalPages.add(page);
                                }
                            } catch (Throwable t) {
                                //
                            }
                        }
                        if (!criticalPages.isEmpty()) {
                            request.setAttribute("processedSwap", null);
                            displaySwap (request, response, session, criticalPages, templ);
                            return;
                        }

                        request.setAttribute("currAction",  "confirmdelete");

                    } else if ( subAction.equals("swap") ) {

                        // process requested template swapping for a set of pages...
                        processSwap (request, response, session);

                    } else if ( subAction.equals("save") ) {

                        String templName = (String)request.getParameter("templName");
                        String visible_status = (String)request.getParameter("visible_status");

                        if (templName != null && (templName.trim().length()>0) ){
                            templ.setName(templName);
                        }
                        if ( visible_status != null ){
                            templ.setAvailable(true);
                            String isDefault = (String)request.getParameter("isDefault");
                            if ( isDefault != null ){
                                site.setDefaultTemplateID(templ.getID());
                            } else {
                                site.setDefaultTemplateID(-1);
                            }
                        } else {
                            templ.setAvailable(false);
                        }