# CommunityInstanceSimpleDocumentAccessControlExtension.java

    /*
     * Copyright (C) 2000 - 2024 Silverpeas
     *
     * This program is free software: you can redistribute it and/or modify
     * it under the terms of the GNU Affero General Public License as
     * published by the Free Software Foundation, either version 3 of the
     * License, or (at your option) any later version.
     *
     * As a special exception to the terms and conditions of version 3.0 of
     * the GPL, you may redistribute this Program in connection with Free/Libre
     * Open Source Software ("FLOSS") applications as described in Silverpeas's
     * FLOSS exception.  You should have received a copy of the text describing
     * the FLOSS exception, and it is also available here:
     * "https://www.silverpeas.org/legal/floss_exception.html"
     *
     * This program 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 Affero General Public License for more details.
     *
     * You should have received a copy of the GNU Affero General Public License
     * along with this program.  If not, see <http://www.gnu.org/licenses/>.
     */

    package org.silverpeas.components.community.security.authorization;

    import org.silverpeas.core.annotation.Service;
    import org.silverpeas.core.contribution.attachment.model.SimpleDocument;
    import org.silverpeas.core.security.authorization.AccessControlContext;
    import org.silverpeas.core.security.authorization.DefaultInstanceSimpleDocumentAccessControlExtension;

    import javax.inject.Named;

    import static org.silverpeas.core.security.authorization.AccessControlOperation.isDownloadActionFrom;

    /**
     * @author silveryocha
     */
    @Named
    @Service
    public class CommunityInstanceSimpleDocumentAccessControlExtension
        extends DefaultInstanceSimpleDocumentAccessControlExtension {

      @Override
      public void beforeComputingAuthorizations(final String userId,
          final SimpleDocument simpleDocument, final AccessControlContext context) {
        if (isDownloadActionFrom(context.getOperations())) {
          context.put(CommunityInstanceAccessControlExtension.CAN_ANONYMOUS_ACCESS_INSTANCE, true);
        }
      }
    }