com.ikon.servlet.DownloadServlet.java Source code

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Here is the source code for com.ikon.servlet.DownloadServlet.java

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/**
 * openkm, Open Document Management System (http://www.openkm.com)
 * Copyright (c) 2006-2013 Paco Avila & Josep Llort
 * 
 * No bytes were intentionally harmed during the development of this application.
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

package com.ikon.servlet;

import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.io.IOUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.ikon.api.OKMDocument;
import com.ikon.api.OKMRepository;
import com.ikon.bean.Document;
import com.ikon.core.PathNotFoundException;
import com.ikon.core.RepositoryException;
import com.ikon.util.PathUtils;
import com.ikon.util.WebUtils;

/**
 * Download Servlet
 */
public class DownloadServlet extends BasicSecuredServlet {
    private static Logger log = LoggerFactory.getLogger(DownloadServlet.class);
    private static final long serialVersionUID = 1L;

    /**
     * 
     */
    public void doGet(HttpServletRequest request, HttpServletResponse response)
            throws IOException, ServletException {
        request.setCharacterEncoding("UTF-8");
        String userId = request.getRemoteUser();
        String path = WebUtils.getString(request, "path");
        String uuid = WebUtils.getString(request, "uuid");
        boolean inline = WebUtils.getBoolean(request, "inline");
        InputStream is = null;

        try {
            // Now an document can be located by UUID
            if (uuid != null && !uuid.equals("")) {
                path = OKMRepository.getInstance().getNodePath(null, uuid);
            }

            if (path != null) {
                Document doc = OKMDocument.getInstance().getProperties(null, path);
                String fileName = PathUtils.getName(doc.getPath());
                log.info("Download {} by {} ({})",
                        new Object[] { path, userId, (inline ? "inline" : "attachment") });
                is = OKMDocument.getInstance().getContent(null, path, false);
                WebUtils.sendFile(request, response, fileName, doc.getMimeType(), inline, is);
            } else {
                response.setContentType("text/plain; charset=UTF-8");
                PrintWriter out = response.getWriter();
                out.println("Missing document reference");
                out.close();
            }
        } catch (PathNotFoundException e) {
            log.warn(e.getMessage(), e);
            response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
                    "PathNotFoundException: " + e.getMessage());
        } catch (RepositoryException e) {
            log.warn(e.getMessage(), e);
            response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
                    "RepositoryException: " + e.getMessage());
        } catch (Exception e) {
            log.warn(e.getMessage(), e);
            response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.getMessage());
        } finally {
            IOUtils.closeQuietly(is);
        }
    }
}