cmsadmindatabase.java

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/*
* File   : $Source: /usr/local/cvs/opencms/src/com/opencms/workplace/CmsAdminDatabase.java,v $
* Date   : $Date: 2002/04/12 12:07:17 $
* Version: $Revision: 1.23 $
*
* 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.boot.*;
import com.opencms.file.*;
import com.opencms.core.*;
import com.opencms.util.*;
import com.opencms.template.*;
import java.util.*;
import java.io.*;
import javax.servlet.http.*;

/**
 * Template class for displaying OpenCms workplace task head screens.
 * <P>
 *
 * @author Andreas Schouten
 * @version $Revision: 1.23 $ $Date: 2002/04/12 12:07:17 $
 * @see com.opencms.workplace.CmsXmlWpTemplateFile
 */

public class CmsAdminDatabase extends CmsWorkplaceDefault implements I_CmsConstants {

    private static String C_DATABASE_THREAD = "databse_im_export_thread";

    /**
     * Gets a database importfile from the client and copys it to the server.
     *
     * @param cms The CmsObject.
     * @param session The session.
     *
     * @return the name of the file.
     */
    private String copyFileToServer(CmsObject cms, I_CmsSession session) throws CmsException{

        // get the filename
        String filename = null;
        Enumeration files = cms.getRequestContext().getRequest().getFileNames();
        while(files.hasMoreElements()) {
            filename = (String)files.nextElement();
        }
        if(filename != null) {
            session.putValue(C_PARA_FILE, filename);
        }
        filename = (String)session.getValue(C_PARA_FILE);

        // get the filecontent
        byte[] filecontent = new byte[0];
        if(filename != null) {
            filecontent = cms.getRequestContext().getRequest().getFile(filename);
        }
        if(filecontent != null) {
            session.putValue(C_PARA_FILECONTENT, filecontent);
        }
        filecontent = (byte[])session.getValue(C_PARA_FILECONTENT);
        // first create the folder if it doesnt exists
        File discFolder = new File(com.opencms.boot.CmsBase.getAbsolutePath(cms.readExportPath()) + "/");
        if(!discFolder.exists()) {
            boolean success = discFolder.mkdir();
            if(com.opencms.boot.I_CmsLogChannels.C_PREPROCESSOR_IS_LOGGING && A_OpenCms.isLogging() && (!success)) {
                A_OpenCms.log(com.opencms.boot.I_CmsLogChannels.C_OPENCMS_INFO, "[CmsAccessFilesystem] Couldn't create folder " + com.opencms.boot.CmsBase.getAbsolutePath(cms.readExportPath()) + "/"+ ".");
            }
        }

        // now write the file into the modules dierectory in the exportpaht
        File discFile = new File(com.opencms.boot.CmsBase.getAbsolutePath(cms.readExportPath()) + "/"  + filename);
        try {

            // write the new file to disk
            OutputStream s = new FileOutputStream(discFile);
            s.write(filecontent);
            s.close();
        }
        catch(Exception e) {
            throw new CmsException("[" + this.getClass().getName() + "] " + e.getMessage());
        }
        return filename;
    }

    /**
     * Gets the content of a defined section in a given template file and its subtemplates
     * with the given parameters.
     *
     * @see getContent(CmsObject cms, String templateFile, String elementName, Hashtable parameters)
     * @param cms CmsObject Object for accessing system resources.
     * @param templateFile Filename of the template file.
     * @param elementName Element name of this template in our parent template.
     * @param parameters Hashtable with all template class parameters.
     * @param templateSelector template section that should be processed.
     */

    public byte[] getContent(CmsObject cms, String templateFile, String elementName,
            Hashtable parameters, String templateSelector) throws CmsException {
        if(com.opencms.boot.I_CmsLogChannels.C_PREPROCESSOR_IS_LOGGING && C_DEBUG && A_OpenCms.isLogging()) {
            A_OpenCms.log(C_OPENCMS_DEBUG, this.getClassName()
                    + "getting content of element "
                            + ((elementName == null) ? "<root>" : elementName));
            A_OpenCms.log(C_OPENCMS_DEBUG, this.getClassName()
                    + "template file is: " + templateFile);
            A_OpenCms.log(C_OPENCMS_DEBUG, this.getClassName()
                    + "selected template section is: "
                            + ((templateSelector == null) ? "<default>" : templateSelector));
        }

        //CmsXmlTemplateFile xmlTemplateDocument = getOwnTemplateFile(cms, templateFile, elementName, parameters, templateSelector);
        CmsXmlWpTemplateFile xmlTemplateDocument = new CmsXmlWpTemplateFile(cms, templateFile);
        I_CmsSession session = cms.getRequestContext().getSession(true);

        // get the parameters
        // String folder = (String)parameters.get("selectallfolders");
        String fileName = (String)parameters.get("filename");
        String existingFile = (String)parameters.get("existingfile");
        String action = (String)parameters.get("action");
        String allResources = (String)parameters.get("ALLRES");
        String allModules = (String)parameters.get("ALLMOD");
        String step = (String)parameters.get("step");
        if(action == null) {

            // This is an initial request of the database administration page
            // Generate datablocks for checkboxes in the HTML form
            if(!cms.getRequestContext().currentProject().equals(cms.onlineProject())) {
                xmlTemplateDocument.setData("nounchanged",
                        xmlTemplateDocument.getProcessedDataValue("nounchangedbox", this, parameters));
            }
            if(cms.isAdmin()) {
                xmlTemplateDocument.setData("userdata",
                        xmlTemplateDocument.getProcessedDataValue("userdatabox", this, parameters));
            }
            xmlTemplateDocument.setData("moduleselect", this.getModuleSelectbox(cms, xmlTemplateDocument));
        }

        // first we look if the thread is allready running
        if((action != null) && ("working".equals(action))) {

            // still working?
            Thread doTheWork = (Thread)session.getValue(C_DATABASE_THREAD);
            if(doTheWork.isAlive()) {
                String time = (String)parameters.get("time");
                int wert = Integer.parseInt(time);
                wert += 20;
                xmlTemplateDocument.setData("time", "" + wert);
                return startProcessing(cms, xmlTemplateDocument, elementName, parameters, "wait");
            }else {

                // thread has come to an end, was there an error?
                String errordetails = (String)session.getValue(C_SESSION_THREAD_ERROR);
                if(errordetails == null) {

                    // im/export ready
                    session.removeValue(C_PARA_FILE);
                    session.removeValue(C_PARA_FILECONTENT);
                    return startProcessing(cms, xmlTemplateDocument, elementName, parameters, "done");
                }else {

                    // get errorpage:
                    xmlTemplateDocument.setData("details", errordetails);
                    session.removeValue(C_SESSION_THREAD_ERROR);
                    return startProcessing(cms, xmlTemplateDocument, elementName, parameters, "error");
                }
            }
        }
        try {
            if("export".equals(action)) {

                // export the database
                Vector resourceNames = parseResources(allResources);
                String[] exportPaths = new String[resourceNames.size()];
                CmsXmlLanguageFile lang = xmlTemplateDocument.getLanguageFile();
                for(int i = 0;i < resourceNames.size();i++) {

                    // modify the foldername if nescessary (the root folder is always given
                    // as a nice name)
                    if(lang.getLanguageValue("title.rootfolder").equals(resourceNames.elementAt(i))) {
                        resourceNames.setElementAt("/", i);
                    }
                    exportPaths[i] = (String)resourceNames.elementAt(i);
                }
                boolean excludeSystem = false;
                if(parameters.get("nosystem") != null) {
                    excludeSystem = true;
                }
                boolean excludeUnchanged = false;
                if(parameters.get("nounchanged") != null) {
                    excludeUnchanged = true;
                }
                boolean exportUserdata = false;
                if(parameters.get("userdata") != null) {
                    exportUserdata = true;
                }

                // start the thread for: export
                // first clear the session entry if necessary
                if(session.getValue(C_SESSION_THREAD_ERROR) != null) {
                    session.removeValue(C_SESSION_THREAD_ERROR);