cmsexplorertree.java

内容管理

/*
* File   : $Source: /usr/local/cvs/opencms/src/com/opencms/workplace/CmsExplorerTree.java,v $
* Date   : $Date: 2003/02/02 15:59:52 $
* Version: $Revision: 1.17 $
*
* 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_CmsSession;
import com.opencms.file.CmsFolder;
import com.opencms.file.CmsGroup;
import com.opencms.file.CmsObject;
import com.opencms.file.CmsResource;
import com.opencms.template.A_CmsXmlContent;
import com.opencms.util.Encoder;

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

/**
 * Template class for displaying the folder tree of the OpenCms workplace.<P>
 * Reads template files of the content type <code>CmsXmlWpTemplateFile</code>.
 * 
 * 
 * @author Michael Emmerich
 * @version $Revision: 1.17 $ $Date: 2003/02/02 15:59:52 $
 */

public class CmsExplorerTree extends CmsWorkplaceDefault implements I_CmsWpConstants {
    
    
    /** Definition of the Datablock TREELINK */
    private static final String C_TREELINK = "TREELINK";
    
    
    /** Definition of the Datablock TREESTYLE */
    private static final String C_TREESTYLE = "TREESTYLE";
    
    
    /** Definition of the Datablock TREETAB */
    private static final String C_TREETAB = "TREETAB";
    
    
    /** Definition of the Datablock TREEENTRY */
    private static final String C_TREEENTRY = "TREEENTRY";
    
    
    /** Definition of the Datablock TREEFOLDER */
    private static final String C_TREEFOLDER = "TREEFOLDER";
    
    
    /** Definition of the Datablock TREESWITCH */
    private static final String C_TREESWITCH = "TREESWITCH";
    
    
    /** Definition of the Datablock TREELINE */
    private static final String C_TREELINE = "TREELINE";
    
    
    /** Definition of the Datablock TREEIMG_EMPTY0 */
    private static final String C_TREEIMG_EMPTY0 = "TREEIMG_EMPTY0";
    
    
    /** Definition of the Datablock TREEIMG_EMPTY */
    private static final String C_TREEIMG_EMPTY = "TREEIMG_EMPTY";
    
    
    /** Definition of the Datablock TREEIMG_FOLDEROPEN */
    private static final String C_TREEIMG_FOLDEROPEN = "TREEIMG_FOLDEROPEN";
    
    
    /** Definition of the Datablock TREEIMG_FOLDERCLOSE */
    private static final String C_TREEIMG_FOLDERCLOSE = "TREEIMG_FOLDERCLOSE";
    
    
    /** Definition of the Datablock TREEIMG_MEND */
    private static final String C_TREEIMG_MEND = "TREEIMG_MEND";
    
    
    /** Definition of the Datablock TREEIMG_PEND */
    private static final String C_TREEIMG_PEND = "TREEIMG_PEND";
    
    
    /** Definition of the Datablock TREEIMG_END */
    private static final String C_TREEIMG_END = "TREEIMG_END";
    
    
    /** Definition of the Datablock TREEIMG_MCROSS */
    private static final String C_TREEIMG_MCROSS = "TREEIMG_MCROSS";
    
    
    /** Definition of the Datablock TREEIMG_PCROSS */
    private static final String C_TREEIMG_PCROSS = "TREEIMG_PCROSS";
    
    
    /** Definition of the Datablock TREEIMG_CROSS */
    private static final String C_TREEIMG_CROSS = "TREEIMG_CROSS";
    
    
    /** Definition of the Datablock TREEIMG_VERT */
    private static final String C_TREEIMG_VERT = "TREEIMG_VERT";
    
    
    /** Style for files in a project. */
    private static final String C_FILE_INPROJECT = "treefolder";
    
    
    /** Style for files not in a project. */
    private static final String C_FILE_NOTINPROJECT = "treefoldernip";
    
    
    /** Definition of Treelist */
    private static final String C_TREELIST = "TREELIST";
    
    
    /** Definition of Treelist */
    private static final String C_FILELIST = "FILELIST";
    
    /** 
     * Check if this resource should be displayed in the filelist.
     * @param cms The CmsObject
     * @param res The resource to be checked.
     * @return True or false.
     * @throws CmsException if something goes wrong.
     */
    
    private boolean checkAccess(CmsObject cms, CmsResource res) throws CmsException {
        boolean access = false;
        int accessflags = res.getAccessFlags();
        
        // First check if the user may have access by one of his groups.
        boolean groupAccess = false;
        Enumeration allGroups = cms.getGroupsOfUser(cms.getRequestContext().currentUser().getName()).elements();
        while((!groupAccess) && allGroups.hasMoreElements()) {
            groupAccess = cms.readGroup(res).equals((CmsGroup)allGroups.nextElement());
        }
        if(((accessflags & C_ACCESS_PUBLIC_VISIBLE) > 0) || (cms.readOwner(res).equals(cms.getRequestContext().currentUser()) && (accessflags & C_ACCESS_OWNER_VISIBLE) > 0) || (groupAccess && (accessflags & C_ACCESS_GROUP_VISIBLE) > 0) || (cms.getRequestContext().currentUser().getName().equals(C_USER_ADMIN))) {
            access = true;
        }
        if(res.getState() == C_STATE_DELETED) {
            access = false;
        }
        return access;
    }
    
    /**
     * Overwrites the getContent method of the CmsWorkplaceDefault.<br>
     * Gets the content of the foldertree template and processe the data input.
     * @param cms The CmsObject.
     * @param templateFile The foldertree 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 {    
          CmsXmlWpTemplateFile xmlTemplateDocument = new CmsXmlWpTemplateFile(cms,templateFile);        
 
          // process the selected template
          return startProcessing(cms,xmlTemplateDocument,"",parameters,"template");
    }*/
    
    /**
     * Creates the folder tree in the workplace explorer.
     * @throws Throws CmsException if something goes wrong.
     */
    
    public Object getTree(CmsObject cms, String tagcontent, A_CmsXmlContent doc, 
            Object userObj) throws CmsException {
        
        StringBuffer output = new StringBuffer();
        I_CmsSession session = cms.getRequestContext().getSession(true);
        String foldername = null;
        String filelist = null;
        String currentFolder;
        String currentFilelist;
        String rootFolder;