# GalleryInstanceFileUploadVerification.java

    /*
     * Copyright (C) 2000 - 2026 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:
     * "http://www.silverpeas.org/docs/core/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 <https://www.gnu.org/licenses/>.
     */

    package org.silverpeas.components.gallery.web;

    import org.silverpeas.components.gallery.constant.MediaMimeType;
    import org.silverpeas.components.gallery.model.GalleryRuntimeException;
    import org.silverpeas.core.annotation.Bean;
    import org.silverpeas.core.notification.message.MessageManager;
    import org.silverpeas.core.notification.message.MessageNotifier;
    import org.silverpeas.kernel.bundle.LocalizationBundle;
    import org.silverpeas.kernel.bundle.ResourceLocator;
    import org.silverpeas.core.util.file.FileUtil;
    import org.silverpeas.core.webapi.upload.ComponentInstanceFileUploadVerification;
    import org.silverpeas.core.webapi.upload.FileUploadVerifyData;

    import jakarta.inject.Named;
    import java.io.File;

    /**
     * Verifies for the Gallery instance a new uploaded file which has not been yet registered into
     * component data.
     * @author Yohann Chastagnier
     */
    @Bean
    @Named
    public class GalleryInstanceFileUploadVerification
        implements ComponentInstanceFileUploadVerification {

      @Override
      public void verify(final String componentInstanceId,
          final FileUploadVerifyData fileUploadVerifyData) {
        checkMimeType(new File(fileUploadVerifyData.getName()));
      }

      @Override
      public void verify(final String componentInstanceId, final File uploadedFile) {
        checkMimeType(uploadedFile);
      }

      private void checkMimeType(File file) {
        MediaMimeType mediaMimeType = MediaMimeType.fromFile(file);
        if (!mediaMimeType.isSupportedMediaType() && !FileUtil.isArchive(file.getPath())) {
          LocalizationBundle galleryBundle = ResourceLocator
              .getLocalizationBundle("org.silverpeas.gallery.multilang.galleryBundle",
                  MessageManager.getLanguage());
          final String message = galleryBundle.getStringWithParams("gallery.format", file.getName());
          MessageNotifier.addError(message);
          throw new GalleryRuntimeException(message);
        }
      }
    }