/**
* This file is part of Jahia, next-generation open source CMS:
* Jahia's next-generation, open source CMS stems from a widely acknowledged vision
* of enterprise application convergence - web, search, document, social and portal -
* unified by the simplicity of web content management.
*
* For more information, please visit http://www.jahia.com.
*
* Copyright (C) 2002-2011 Jahia Solutions Group SA. All rights reserved.
*
* 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.
*
* As a special exception to the terms and conditions of version 2.0 of
* the GPL (or any later version), you may redistribute this Program in connection
* with Free/Libre and Open Source Software ("FLOSS") applications as described
* in Jahia's FLOSS exception. You should have received a copy of the text
* describing the FLOSS exception, and it is also available here:
* http://www.jahia.com/license
*
* Commercial and Supported Versions of the program (dual licensing):
* alternatively, commercial and supported versions of the program may be used
* in accordance with the terms and conditions contained in a separate
* written agreement between you and Jahia Solutions Group SA.
*
* If you are unsure which license is appropriate for your use,
* please contact the sales department at sales@jahia.com.
*/
package org.jahia.bin.googledocs;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import javax.jcr.PathNotFoundException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang.StringUtils;
import org.jahia.api.Constants;
import org.jahia.bin.JahiaController;
import org.jahia.exceptions.JahiaUnauthorizedException;
import org.jahia.services.content.JCRContentUtils;
import org.jahia.services.content.JCRNodeWrapper;
import org.jahia.services.content.JCRSessionFactory;
import org.jahia.services.content.JCRSessionWrapper;
import org.jahia.services.googledocs.GoogleDocsService;
import org.jahia.services.googledocs.GoogleDocsServiceFactory;
import org.springframework.web.servlet.ModelAndView;
import com.google.gdata.data.docs.DocumentListEntry;
import com.google.gdata.util.AuthenticationException;
import com.google.gdata.util.ServiceException;
/**
* Base controller for using Google Data API.
*
* @author Sergiy Shyrkov
*/
public abstract class GoogleDocsController extends JahiaController {
private static final long serialVersionUID = 2548972609875824769L;
private GoogleDocsServiceFactory docsServiceFactory;
protected abstract void doAction(DocumentListEntry document, GoogleDocsService docsService, JCRNodeWrapper node,
JCRSessionWrapper session, HttpServletRequest request, HttpServletResponse response) throws Exception;
protected GoogleDocsService getDocsService(HttpServletRequest request, HttpServletResponse response)
throws UnsupportedEncodingException, JahiaUnauthorizedException, AuthenticationException {
return docsServiceFactory.getDocsService(request, response);
}
protected ModelAndView handleGet(HttpServletRequest request, HttpServletResponse response) throws IOException,
ServletException {
String workspace = null;
String nodePath = null;
String pathInfo = request.getPathInfo();
// we expect the format: /<workspace>/<file-node-path>
if (pathInfo != null && pathInfo.length() > 1) {
pathInfo = StringUtils.substringAfter(pathInfo.substring(1), "/");
workspace = StringUtils.substringBefore(pathInfo, "/");
nodePath = StringUtils.substringAfter(pathInfo, workspace);
}
// check required parameters
if (!JCRContentUtils.isValidWorkspace(workspace) || StringUtils.isEmpty(nodePath)) {
response.sendError(HttpServletResponse.SC_BAD_REQUEST,
"Expected data not found in the request: /<workspace>/<file-node-path>");
return null;
}
try {
if (!preconditionsMatched(request, response)) {
return null;
}
JCRSessionWrapper session = JCRSessionFactory.getInstance().getCurrentUserSession(workspace);
JCRNodeWrapper node = session.getNode(nodePath);
if (node.isNodeType("nt:file")) {
GoogleDocsService docsService = getDocsService(request, response);
if (docsService == null) {
return null;
}
DocumentListEntry document = uploadFile(node, docsService, request, response);
doAction(document, docsService, node, session, request, response);
} else {
response.sendError(HttpServletResponse.SC_BAD_REQUEST, "Path should correspond to a file node");
}
} catch (PathNotFoundException e) {
response.sendError(HttpServletResponse.SC_NOT_FOUND, e.getMessage());
} catch (Exception e) {
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.getMessage());
}
return null;
}
protected ModelAndView handlePost(HttpServletRequest request, HttpServletResponse response) throws IOException {
throw new UnsupportedOperationException();
}
public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {
ModelAndView result = null;
if (ServletFileUpload.isMultipartContent(request)) {
result = handlePost(request, response);
} else if ("get".equalsIgnoreCase(request.getMethod())) {
result = handleGet(request, response);
} else {
response.sendError(HttpServletResponse.SC_BAD_REQUEST, "Multipart data is not found in the POST request");
}
return result;
}
protected boolean preconditionsMatched(HttpServletRequest request, HttpServletResponse response) throws Exception {
return true;
}
public void setDocsServiceFactory(GoogleDocsServiceFactory docsServiceFactory) {
this.docsServiceFactory = docsServiceFactory;
}
private DocumentListEntry uploadFile(JCRNodeWrapper node, GoogleDocsService docsService,
HttpServletRequest request, HttpServletResponse response) throws IOException, ServiceException {
DocumentListEntry document = null;
InputStream is = null;
String fileName = node.getName();
try {
is = node.getFileContent().downloadFile();
document = docsService.upload(is, fileName, node.getFileContent().getContentType());
} finally {
IOUtils.closeQuietly(is);
}
return document;
}
}