/**
* OpenKM, Open Document Management System (http://www.openkm.com)
* Copyright (c) 2006-2011 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.openkm.servlet.frontend;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.StringWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.compress.archivers.ArchiveException;
import org.apache.commons.io.IOUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.openkm.api.OKMDocument;
import com.openkm.api.OKMRepository;
import com.openkm.bean.Document;
import com.openkm.core.AccessDeniedException;
import com.openkm.core.DatabaseException;
import com.openkm.core.PathNotFoundException;
import com.openkm.core.RepositoryException;
import com.openkm.frontend.client.OKMException;
import com.openkm.frontend.client.contants.service.ErrorCode;
import com.openkm.jcr.JCRUtils;
import com.openkm.util.ArchiveUtils;
import com.openkm.util.FileUtils;
import com.openkm.util.WebUtils;
import com.openkm.util.impexp.RepositoryExporter;
import com.openkm.util.impexp.TextInfoDecorator;
/**
* Documento download servlet
*/
public class DownloadServlet extends OKMHttpServlet {
private static Logger log = LoggerFactory.getLogger(DownloadServlet.class);
private static final long serialVersionUID = 1L;
private static final boolean exportZip = true;
private static final boolean exportJar = false;
protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException,
IOException {
log.debug("service({}, {})", request, response);
request.setCharacterEncoding("UTF-8");
String id = request.getParameter("id");
String path = id != null?new String(id.getBytes("ISO-8859-1"), "UTF-8"):null;
String uuid = request.getParameter("uuid");
String checkout = request.getParameter("checkout");
String ver = request.getParameter("ver");
boolean export = request.getParameter("export") != null;
boolean inline = request.getParameter("inline") != null;
File tmp = File.createTempFile("okm", ".tmp");
Document doc = null;
InputStream is = null;
updateSessionManager(request);
try {
// Now an document can be located by UUID
if (uuid != null && !uuid.equals("")) {
path = OKMRepository.getInstance().getNodePath(null, uuid);
}
if (export) {
if (exportZip) {
// Get document
FileOutputStream os = new FileOutputStream(tmp);
exportZip(path, os);
os.flush();
os.close();
is = new FileInputStream(tmp);
// Send document
String fileName = JCRUtils.getName(path) + ".zip";
WebUtils.sendFile(request, response, fileName, "application/zip", inline, is);
} else if (exportJar) {
// Get document
FileOutputStream os = new FileOutputStream(tmp);
exportJar(path, os);
os.flush();
os.close();
is = new FileInputStream(tmp);
// Send document
String fileName = JCRUtils.getName(path) + ".jar";
WebUtils.sendFile(request, response, fileName, "application/x-java-archive", inline, is);
}
} else {
// Get document
doc = OKMDocument.getInstance().getProperties(null, path);
if (ver != null && !ver.equals("")) {
is = OKMDocument.getInstance().getContentByVersion(null, path, ver);
} else {
is = OKMDocument.getInstance().getContent(null, path, checkout != null);
}
// Send document
String fileName = JCRUtils.getName(doc.getPath());
WebUtils.sendFile(request, response, fileName, doc.getMimeType(), inline, is);
}
} catch (PathNotFoundException e) {
log.warn(e.getMessage(), e);
throw new ServletException(new OKMException(ErrorCode.get(ErrorCode.ORIGIN_OKMDownloadService, ErrorCode.CAUSE_PathNotFound), e.getMessage()));
} catch (RepositoryException e) {
log.warn(e.getMessage(), e);
throw new ServletException(new OKMException(ErrorCode.get(ErrorCode.ORIGIN_OKMDownloadService, ErrorCode.CAUSE_Repository), e.getMessage()));
} catch (IOException e) {
log.error(e.getMessage(), e);
throw new ServletException(new OKMException(ErrorCode.get(ErrorCode.ORIGIN_OKMDownloadService, ErrorCode.CAUSE_IO), e.getMessage()));
} catch (DatabaseException e) {
log.error(e.getMessage(), e);
throw new ServletException(new OKMException(ErrorCode.get(ErrorCode.ORIGIN_OKMDownloadService, ErrorCode.CAUSE_Database), e.getMessage()));
} catch (Exception e) {
log.error(e.getMessage(), e);
throw new ServletException(new OKMException(ErrorCode.get(ErrorCode.ORIGIN_OKMDownloadService, ErrorCode.CAUSE_General), e.getMessage()));
} finally {
IOUtils.closeQuietly(is);
FileUtils.deleteQuietly(tmp);
}
log.debug("service: void");
}
/**
* Generate a zip file from a repository folder path
*/
private void exportZip(String path, OutputStream os) throws PathNotFoundException, AccessDeniedException,
RepositoryException, ArchiveException, IOException, DatabaseException {
log.debug("exportZip({}, {})", path, os);
File tmp = null;
try {
tmp = FileUtils.createTempDir();
// Export files
StringWriter out = new StringWriter();
RepositoryExporter.exportDocuments(null, path, tmp, false, out, new TextInfoDecorator(path));
out.close();
// Zip files
ArchiveUtils.createZip(tmp, JCRUtils.getName(path), os);
} catch (IOException e) {
log.error("Error exporting zip", e);
throw e;
} finally {
if (tmp != null) {
try {
org.apache.commons.io.FileUtils.deleteDirectory(tmp);
} catch (IOException e) {
log.error("Error deleting temporal directory", e);
throw e;
}
}
}
log.debug("exportZip: void");
}
/**
* Generate a jar file from a repository folder path
*/
private void exportJar(String path, OutputStream os) throws PathNotFoundException, AccessDeniedException,
RepositoryException, ArchiveException, IOException, DatabaseException {
log.debug("exportJar({}, {})", path, os);
File tmp = null;
try {
tmp = FileUtils.createTempDir();
// Export files
StringWriter out = new StringWriter();
RepositoryExporter.exportDocuments(null, path, tmp, false, out, new TextInfoDecorator(path));
out.close();
// Jar files
ArchiveUtils.createJar(tmp, JCRUtils.getName(path), os);
} catch (IOException e) {
log.error("Error exporting jar", e);
throw e;
} finally {
if (tmp != null) {
try {
org.apache.commons.io.FileUtils.deleteDirectory(tmp);
} catch (IOException e) {
log.error("Error deleting temporal directory", e);
throw e;
}
}
}
log.debug("exportJar: void");
}
}