001/*
002 * This library is part of OpenCms -
003 * the Open Source Content Management System
004 *
005 * Copyright (c) Alkacon Software GmbH & Co. KG (http://www.alkacon.com)
006 *
007 * This library is free software; you can redistribute it and/or
008 * modify it under the terms of the GNU Lesser General Public
009 * License as published by the Free Software Foundation; either
010 * version 2.1 of the License, or (at your option) any later version.
011 *
012 * This library is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
015 * Lesser General Public License for more details.
016 *
017 * For further information about Alkacon Software, please see the
018 * company website: http://www.alkacon.com
019 *
020 * For further information about OpenCms, please see the
021 * project website: http://www.opencms.org
022 *
023 * You should have received a copy of the GNU Lesser General Public
024 * License along with this library; if not, write to the Free Software
025 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
026 */
027
028package org.opencms.ade.postupload;
029
030import org.opencms.file.CmsObject;
031import org.opencms.file.CmsResource;
032import org.opencms.file.CmsResourceFilter;
033import org.opencms.gwt.I_CmsValidationService;
034import org.opencms.gwt.shared.CmsValidationResult;
035import org.opencms.main.CmsLog;
036import org.opencms.main.OpenCms;
037import org.opencms.security.CmsPermissionViolationException;
038import org.opencms.util.CmsStringUtil;
039import org.opencms.util.CmsUUID;
040
041import java.util.Locale;
042
043import org.apache.commons.logging.Log;
044
045/**
046 * Checks whether an uploaded file's modified name is already used by another file.
047 */
048public class CmsServerFilenameValidator implements I_CmsValidationService {
049
050    private static final Log LOG = CmsLog.getLog(CmsServerFilenameValidator.class);
051
052    /**
053     * @see org.opencms.gwt.I_CmsValidationService#validate(org.opencms.file.CmsObject, java.lang.String, java.lang.String)
054     */
055    @Override
056    public CmsValidationResult validate(CmsObject cms, String value, String config) {
057
058        Locale locale = OpenCms.getWorkplaceManager().getWorkplaceLocale(cms);
059        CmsUUID structureId = new CmsUUID(config);
060        try {
061            CmsResource parentFolder = cms.readParentFolder(structureId);
062            String pathToCheck = CmsStringUtil.joinPaths(cms.getSitePath(parentFolder), value);
063            boolean otherFileExists = false;
064            try {
065                CmsResource res = cms.readResource(pathToCheck, CmsResourceFilter.ALL);
066                otherFileExists = !structureId.equals(res.getStructureId());
067            } catch (CmsPermissionViolationException e) {
068                otherFileExists = true;
069            } catch (Exception e) {
070                otherFileExists = false;
071            }
072            if (otherFileExists) {
073                return new CmsValidationResult(
074                    Messages.get().getBundle(locale).key(Messages.GUI_POSTUPLOAD_FILE_EXISTS_0));
075            } else {
076                return CmsValidationResult.VALIDATION_OK;
077            }
078        } catch (Exception e) {
079            LOG.info(e.getLocalizedMessage(), e);
080            return new CmsValidationResult(e.getLocalizedMessage());
081        }
082    }
083
084}