cmsmove.java

内容管理

/*
* File   : $Source: /usr/local/cvs/opencms/src/com/opencms/workplace/CmsMove.java,v $
* Date   : $Date: 2004/01/07 10:57:09 $
* Version: $Revision: 1.51.2.1 $
*
* This library is part of OpenCms -
* the Open Source Content Mananagement System
*
* Copyright (C) 2001  The OpenCms Group
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* For further information about OpenCms, please see the
* OpenCms Website: http://www.opencms.org
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

package com.opencms.workplace;

import com.opencms.core.CmsException;
import com.opencms.core.I_CmsConstants;
import com.opencms.core.I_CmsSession;
import com.opencms.file.CmsFile;
import com.opencms.file.CmsFolder;
import com.opencms.file.CmsObject;
import com.opencms.file.CmsProject;
import com.opencms.file.CmsResource;
import com.opencms.file.CmsUser;
import com.opencms.util.Encoder;
import com.opencms.util.Utils;

import java.util.Enumeration;
import java.util.Hashtable;
import java.util.Vector;

/**
 * Template class for displaying the move file screen of the OpenCms workplace.<P>
 * Reads template files of the content type <code>CmsXmlWpTemplateFile</code>.
 *
 * @author Michael Emmerich
 * @author Michaela Schleich
 * @version $Revision: 1.51.2.1 $ $Date: 2004/01/07 10:57:09 $
 */

public class CmsMove extends CmsWorkplaceDefault implements I_CmsWpConstants,I_CmsConstants {

    /**
     * Overwrites the getContent method of the CmsWorkplaceDefault.<br>
     * Gets the content of the move template and processed the data input.
     * @param cms The CmsObject.
     * @param templateFile The move template file
     * @param elementName not used
     * @param parameters Parameters of the request and the template.
     * @param templateSelector Selector of the template tag to be displayed.
     * @return Bytearre containgine the processed data of the template.
     * @throws Throws CmsException if something goes wrong.
     */
    public byte[] getContent(CmsObject cms, String templateFile, String elementName,
            Hashtable parameters, String templateSelector) throws CmsException {
        I_CmsSession session = cms.getRequestContext().getSession(true);
        CmsXmlWpTemplateFile xmlTemplateDocument = new CmsXmlWpTemplateFile(cms,
                templateFile);
        CmsXmlLanguageFile lang = xmlTemplateDocument.getLanguageFile();

        // the template to be displayed
        String template = null;

        // clear session values on first load
        String initial = (String)parameters.get(C_PARA_INITIAL);
        if(initial != null) {

            // remove all session values
            session.removeValue(C_PARA_FILE);
            session.removeValue(C_PARA_NEWFOLDER);
            session.removeValue(C_PARA_FLAGS);
            session.removeValue("lasturl");
        }

        // get the lasturl parameter
        String lasturl = getLastUrl(cms, parameters);

        // get the file to be copied
        String filename = (String)parameters.get(C_PARA_FILE);
        if(filename != null) {
            session.putValue(C_PARA_FILE, filename.trim());
        }
        filename = (String)session.getValue(C_PARA_FILE);
        
        CmsResource file = (CmsResource)cms.readFileHeader(filename);

        // read all request parameters
        String newFolder = new String();
        String newFile = new String();
        String wholePath = (String)parameters.get(C_PARA_NEWFOLDER);

        // the wholePath includes the folder and/or the filename
        if(wholePath != null && !("".equals(wholePath))){
            if(wholePath.startsWith("/")){
                // get the foldername
                newFolder = wholePath.substring(0, wholePath.lastIndexOf("/")+1);
                newFile = wholePath.substring(wholePath.lastIndexOf("/")+1);
                if (newFile == null || "".equals(newFile)){
                    newFile = file.getName();
                }
            } else {
                newFolder = file.getParent();
                newFile = wholePath;
            }
        }
        if(newFolder != null && !("".equals(newFolder))) {
            session.putValue(C_PARA_NEWFOLDER, newFolder.trim());
        }
        newFolder = (String)session.getValue(C_PARA_NEWFOLDER);

        if(newFile != null && !("".equals(newFile))) {
            session.putValue(C_PARA_NEWFILE, newFile.trim());
        }
        newFile = (String)session.getValue(C_PARA_NEWFILE);

        String flags = (String)parameters.get(C_PARA_FLAGS);
        if(flags != null) {
            session.putValue(C_PARA_FLAGS, flags);
        }
        flags = (String)session.getValue(C_PARA_FLAGS);
        String action = (String)parameters.get("action");
        // modify the folderaname if nescessary (the root folder is always given
        // as a nice name)
        if(newFolder != null && !("".equals(newFolder))) {
            if(newFolder.equals(lang.getLanguageValue("title.rootfolder"))) {
                newFolder = "/";
            }

            // ednfal: check if the user try to move the resource into itself
            if(newFolder.equals(file.getAbsolutePath())) {
                 // something went wrong, so remove all session parameters
                session.removeValue(C_PARA_FILE);
                session.removeValue(C_PARA_NEWFOLDER);
                session.removeValue(C_PARA_FLAGS);
                template = "error";
                xmlTemplateDocument.setData("details", "Can't move folder into itself");
                xmlTemplateDocument.setData("lasturl", lasturl);
                return startProcessing(cms, xmlTemplateDocument, "", parameters,
                            template);
            }

            // ednfal: try to read the destination folder
            try {
                cms.readFolder(newFolder);
            }
            catch(CmsException ex) {
                // something went wrong, so remove all session parameters
                session.removeValue(C_PARA_FILE);
                session.removeValue(C_PARA_NEWFOLDER);
                session.removeValue(C_PARA_FLAGS);

                template = "error";
                if(ex.getType() == CmsException.C_NOT_FOUND) {
                    xmlTemplateDocument.setData("details", "Destination folder not exists"+ex.getStackTraceAsString());
                } else {
                    xmlTemplateDocument.setData("details", ex.getStackTraceAsString());
                }
                xmlTemplateDocument.setData("lasturl", lasturl);
                return startProcessing(cms, xmlTemplateDocument, "", parameters,
                                template);
            }
        }

        // select the template to be displayed
        if(file.isFile()) {
            template = "file";
        }
        else {
            template = "folder";
        }

        //check if the newFolder parameter was included in the request
        //if not, the move page is shown for the first time
        if(newFolder != null && !("".equals(newFolder))) {