org.silverpeas.mobile.server.helpers.DataURLHelper.java Source code

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Here is the source code for org.silverpeas.mobile.server.helpers.DataURLHelper.java

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/*
 * Copyright (C) 2000 - 2018 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 <http://www.gnu.org/licenses/>.
 */

package org.silverpeas.mobile.server.helpers;

import org.apache.commons.codec.binary.Base64;
import org.apache.commons.io.IOUtils;
import org.silverpeas.core.io.file.SilverpeasFile;
import org.silverpeas.core.io.file.SilverpeasFileProvider;
import org.silverpeas.core.util.file.FileRepositoryManager;
import org.silverpeas.core.util.logging.SilverLogger;
import org.silverpeas.mobile.server.common.SpMobileLogModule;

import javax.activation.MimetypesFileTypeMap;
import java.io.File;

/**
 * @author: svu
 */
public class DataURLHelper {

    /**
     * Return avatar dataurl
     * @param photoFileName
     * @return
     */
    public static String convertAvatarToUrlData(String photoFileName, String size) {

        int i = photoFileName.lastIndexOf("/");
        if (i == -1)
            i = photoFileName.lastIndexOf("\\");
        if (i != -1) {
            photoFileName = photoFileName.substring(i + 1);
        }

        String data = "";
        try {
            File originalImage = new File(
                    FileRepositoryManager.getAvatarPath() + File.separatorChar + photoFileName);
            if (!originalImage.exists()) {
                return "";
            }

            String askedPath = originalImage.getParent() + File.separator + size + File.separator + photoFileName;
            SilverpeasFile image = SilverpeasFileProvider.getFile(askedPath);

            byte[] binaryData = IOUtils.toByteArray(image.inputStream());
            MimetypesFileTypeMap mimeTypesMap = new MimetypesFileTypeMap();
            data = "data:" + mimeTypesMap.getContentType(originalImage) + ";base64,"
                    + new String(Base64.encodeBase64(binaryData));
        } catch (Exception e) {
            SilverLogger.getLogger(SpMobileLogModule.getName())
                    .error("PublicationContentServlet.convertSpImageUrlToDataUrl", "root.EX_NO_MESSAGE", e);
        }
        return data;
    }

}