content: /*
   * This library is part of OpenCms -
   * the Open Source Content Management System
   *
   * Copyright (c) Alkacon Software GmbH & Co. KG (https://www.alkacon.com)
   *
   * 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 Alkacon Software, please see the
   * company website: https://www.alkacon.com
   *
   * For further information about OpenCms, please see the
   * project website: https://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 org.opencms.file.wrapper;
  
  import org.opencms.db.Messages;
  import org.opencms.file.CmsObject;
  import org.opencms.file.CmsProperty;
  import org.opencms.file.CmsResource;
  import org.opencms.main.CmsException;
  import org.opencms.main.CmsIllegalArgumentException;
  import org.opencms.security.CmsPermissionViolationException;
  import org.opencms.util.CmsStringUtil;
  
  import java.util.HashSet;
  import java.util.List;
  import java.util.Set;
  
  /**
   * Resource wrapper class which is used to prevent resources with a certain name from being created.<p>
   *
   * This can be used to prevent file browsers accessing the repository from creating thumbnail files.
   * This class does not distinguish between upper case and lower case letters in file names.
   */
  public class CmsResourceWrapperPreventCreateNameCI extends A_CmsResourceWrapper {
  
      /** File name separator. */
      public static final String NAME_SEPARATOR = "|";
  
      /**
       * The set of illegal file names.<p>
       */
      private Set<String> m_disabledNames = new HashSet<String>();
  
      /**
       * @see org.opencms.file.wrapper.A_CmsResourceWrapper#configure(java.lang.String)
       */
      @Override
      public void configure(String configString) {
  
          List<String> tokens = CmsStringUtil.splitAsList(configString, NAME_SEPARATOR);
          for (String token : tokens) {
              m_disabledNames.add(token.trim().toLowerCase());
          }
      }
  
      /**
       * @see org.opencms.file.wrapper.A_CmsResourceWrapper#createResource(org.opencms.file.CmsObject, java.lang.String, int, byte[], java.util.List)
       */
      @Override
      public CmsResource createResource(
          CmsObject cms,
          String resourcepath,
          int type,
          byte[] content,
          List<CmsProperty> properties) throws CmsIllegalArgumentException {
  
          String name = CmsResource.getName(resourcepath);
          if (m_disabledNames.contains(name.toLowerCase())) {
              throw new CmsSilentWrapperException(
                  new CmsPermissionViolationException(
                      Messages.get().container(Messages.ERR_PERM_DENIED_2, resourcepath, "+c")));
          } else {
              return null;
          }
      }
  
      /**
       * @see org.opencms.file.wrapper.I_CmsResourceWrapper#isWrappedResource(org.opencms.file.CmsObject, org.opencms.file.CmsResource)
       */
      public boolean isWrappedResource(CmsObject cms, CmsResource res) {
  
          return false;
      }
  
      /**
       * @see org.opencms.file.wrapper.A_CmsResourceWrapper#moveResource(org.opencms.file.CmsObject, java.lang.String, java.lang.String)
       */
      @Override
      public boolean moveResource(CmsObject cms, String source, String destination)
      throws CmsException, CmsIllegalArgumentException {
  
          String name = CmsResource.getName(destination);
  
          if (m_disabledNames.contains(name)) {
              throw new CmsPermissionViolationException(
                  Messages.get().container(Messages.ERR_PERM_DENIED_2, destination, "+c"));
          } else {
              return false;
          }
      }
  
  }
  