001/*
002 * (C) Copyright 2012 Nuxeo SA (http://nuxeo.com/) and contributors.
003 *
004 * All rights reserved. This program and the accompanying materials
005 * are made available under the terms of the GNU Lesser General Public License
006 * (LGPL) version 2.1 which accompanies this distribution, and is available at
007 * http://www.gnu.org/licenses/lgpl.html
008 *
009 * This library is distributed in the hope that it will be useful,
010 * but WITHOUT ANY WARRANTY; without even the implied warranty of
011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
012 * Lesser General Public License for more details.
013 *
014 * Contributors:
015 *     Antoine Taillefer <ataillefer@nuxeo.com>
016 */
017package org.nuxeo.drive.adapter.impl;
018
019import java.security.Principal;
020import java.util.ArrayList;
021import java.util.Collections;
022import java.util.Iterator;
023import java.util.List;
024import java.util.Map;
025import java.util.Set;
026
027import org.apache.commons.logging.Log;
028import org.apache.commons.logging.LogFactory;
029import org.nuxeo.drive.adapter.FileSystemItem;
030import org.nuxeo.drive.adapter.FolderItem;
031import org.nuxeo.drive.service.NuxeoDriveManager;
032import org.nuxeo.drive.service.SynchronizationRoots;
033import org.nuxeo.ecm.core.api.CoreInstance;
034import org.nuxeo.ecm.core.api.CoreSession;
035import org.nuxeo.ecm.core.api.DocumentModel;
036import org.nuxeo.ecm.core.api.IdRef;
037import org.nuxeo.ecm.core.api.security.SecurityConstants;
038import org.nuxeo.runtime.api.Framework;
039
040/**
041 * Default implementation of the top level {@link FolderItem}.
042 *
043 * @author Antoine Taillefer
044 */
045public class DefaultTopLevelFolderItem extends AbstractVirtualFolderItem {
046
047    private static final long serialVersionUID = 1L;
048
049    private static final Log log = LogFactory.getLog(DefaultTopLevelFolderItem.class);
050
051    public DefaultTopLevelFolderItem(String factoryName, Principal principal, String folderName) {
052        super(factoryName, principal, null, null, folderName);
053    }
054
055    protected DefaultTopLevelFolderItem() {
056        // Needed for JSON deserialization
057    }
058
059    /*--------------------- FolderItem -----------------*/
060    @Override
061    public List<FileSystemItem> getChildren() {
062
063        List<FileSystemItem> children = new ArrayList<FileSystemItem>();
064        Map<String, SynchronizationRoots> syncRootsByRepo = Framework.getLocalService(NuxeoDriveManager.class).getSynchronizationRoots(
065                principal);
066        for (String repositoryName : syncRootsByRepo.keySet()) {
067            try (CoreSession session = CoreInstance.openCoreSession(repositoryName, principal)) {
068                Set<IdRef> syncRootRefs = syncRootsByRepo.get(repositoryName).getRefs();
069                Iterator<IdRef> syncRootRefsIt = syncRootRefs.iterator();
070                while (syncRootRefsIt.hasNext()) {
071                    IdRef idRef = syncRootRefsIt.next();
072                    // TODO: ensure sync roots cache is up-to-date if ACL
073                    // change, for now need to check permission
074                    // See https://jira.nuxeo.com/browse/NXP-11146
075                    if (!session.hasPermission(idRef, SecurityConstants.READ)) {
076                        if (log.isDebugEnabled()) {
077                            log.debug(String.format(
078                                    "User %s has no READ access on synchronization root %s, not including it in children.",
079                                    session.getPrincipal().getName(), idRef));
080                        }
081                        continue;
082                    }
083                    DocumentModel doc = session.getDocument(idRef);
084                    FileSystemItem child = getFileSystemItemAdapterService().getFileSystemItem(doc, this);
085                    if (child == null) {
086                        if (log.isDebugEnabled()) {
087                            log.debug(String.format(
088                                    "Synchronization root %s cannot be adapted as a FileSystemItem, not including it in children.",
089                                    idRef));
090                        }
091                        continue;
092                    }
093                    if (log.isDebugEnabled()) {
094                        log.debug(String.format("Including synchronization root %s in children.", idRef));
095                    }
096                    children.add(child);
097                }
098            }
099        }
100        Collections.sort(children);
101        return children;
102    }
103
104}