/*
************************************************************************
******************* CANADIAN ASTRONOMY DATA CENTRE *******************
************** CENTRE CANADIEN DE DONNÉES ASTRONOMIQUES **************
*
* (c) 2014. (c) 2014.
* Government of Canada Gouvernement du Canada
* National Research Council Conseil national de recherches
* Ottawa, Canada, K1A 0R6 Ottawa, Canada, K1A 0R6
* All rights reserved Tous droits réservés
*
* NRC disclaims any warranties, Le CNRC dénie toute garantie
* expressed, implied, or énoncée, implicite ou légale,
* statutory, of any kind with de quelque nature que ce
* respect to the software, soit, concernant le logiciel,
* including without limitation y compris sans restriction
* any warranty of merchantability toute garantie de valeur
* or fitness for a particular marchande ou de pertinence
* purpose. NRC shall not be pour un usage particulier.
* liable in any event for any Le CNRC ne pourra en aucun cas
* damages, whether direct or être tenu responsable de tout
* indirect, special or general, dommage, direct ou indirect,
* consequential or incidental, particulier ou général,
* arising from the use of the accessoire ou fortuit, résultant
* software. Neither the name de l'utilisation du logiciel. Ni
* of the National Research le nom du Conseil National de
* Council of Canada nor the Recherches du Canada ni les noms
* names of its contributors may de ses participants ne peuvent
* be used to endorse or promote être utilisés pour approuver ou
* products derived from this promouvoir les produits dérivés
* software without specific prior de ce logiciel sans autorisation
* written permission. préalable et particulière
* par écrit.
*
* This file is part of the Ce fichier fait partie du projet
* OpenCADC project. OpenCADC.
*
* OpenCADC is free software: OpenCADC est un logiciel libre ;
* you can redistribute it and/or vous pouvez le redistribuer ou le
* modify it under the terms of modifier suivant les termes de
* the GNU Affero General Public la “GNU Affero General Public
* License as published by the License” telle que publiée
* Free Software Foundation, par la Free Software Foundation
* either version 3 of the : soit la version 3 de cette
* License, or (at your option) licence, soit (à votre gré)
* any later version. toute version ultérieure.
*
* OpenCADC is distributed in the OpenCADC est distribué
* hope that it will be useful, dans l’espoir qu’il vous
* but WITHOUT ANY WARRANTY; sera utile, mais SANS AUCUNE
* without even the implied GARANTIE : sans même la garantie
* warranty of MERCHANTABILITY implicite de COMMERCIALISABILITÉ
* or FITNESS FOR A PARTICULAR ni d’ADÉQUATION À UN OBJECTIF
* PURPOSE. See the GNU Affero PARTICULIER. Consultez la Licence
* General Public License for Générale Publique GNU Affero
* more details. pour plus de détails.
*
* You should have received Vous devriez avoir reçu une
* a copy of the GNU Affero copie de la Licence Générale
* General Public License along Publique GNU Affero avec
* with OpenCADC. If not, see OpenCADC ; si ce n’est
* . pas le cas, consultez :
* .
*
* $Revision: 4 $
*
************************************************************************
*/
package ca.nrc.cadc.ac.server.web;
import java.io.IOException;
import java.security.Principal;
import java.security.PrivilegedActionException;
import javax.security.auth.Subject;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.log4j.Logger;
import ca.nrc.cadc.ac.server.GroupPersistence;
import ca.nrc.cadc.ac.server.PluginFactory;
import ca.nrc.cadc.ac.server.web.groups.AbstractGroupAction;
import ca.nrc.cadc.ac.server.web.groups.GroupLogInfo;
import ca.nrc.cadc.ac.server.web.groups.GroupsActionFactory;
import ca.nrc.cadc.auth.AuthenticationUtil;
/**
* Servlet for handling all requests to /groups
*
* @author majorb
*/
public class GroupServlet extends HttpServlet
{
private static final long serialVersionUID = 7854660717655869213L;
private static final Logger log = Logger.getLogger(GroupServlet.class);
private GroupPersistence groupPersistence;
@Override
public void init(ServletConfig config) throws ServletException
{
super.init(config);
try
{
PluginFactory pluginFactory = new PluginFactory();
groupPersistence = pluginFactory.createGroupPersistence();
}
catch (Throwable t)
{
log.fatal("Error initializing group persistence", t);
throw new ExceptionInInitializerError(t);
}
}
@Override
public void destroy()
{
groupPersistence.destroy();
}
/**
* Create a GroupAction and run the action safely.
*/
private void doAction(GroupsActionFactory factory, HttpServletRequest request, HttpServletResponse response)
throws IOException
{
long start = System.currentTimeMillis();
GroupLogInfo logInfo = new GroupLogInfo(request);
try
{
log.info(logInfo.start());
Subject subject = AuthenticationUtil.getSubject(request);
logInfo.setSubject(subject);
AbstractGroupAction action = factory.createAction(request);
action.setLogInfo(logInfo);
action.setHttpServletRequest(request);
SyncOutput syncOut = new SyncOutput(response);
action.setSyncOut(syncOut);
action.setGroupPersistence(groupPersistence);
try
{
if (subject == null)
{
action.run();
}
else
{
Subject.doAs(subject, action);
}
}
catch (PrivilegedActionException e)
{
Throwable cause = e.getCause();
if (cause != null)
{
throw cause;
}
Exception exception = e.getException();
if (exception != null)
{
throw exception;
}
throw e;
}
}
catch (IllegalArgumentException e)
{
log.debug(e.getMessage(), e);
logInfo.setMessage(e.getMessage());
response.getWriter().write(e.getMessage());
response.setStatus(400);
}
catch (Throwable t)
{
String message = "Internal Server Error: " + t.getMessage();
log.error(message, t);
logInfo.setSuccess(false);
logInfo.setMessage(message);
response.getWriter().write(message);
response.setStatus(500);
}
finally
{
logInfo.setElapsedTime(System.currentTimeMillis() - start);
log.info(logInfo.end());
}
}
@Override
public void doGet(final HttpServletRequest request, HttpServletResponse response)
throws IOException
{
doAction(GroupsActionFactory.httpGetFactory(), request, response);
}
@Override
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws IOException
{
doAction(GroupsActionFactory.httpPostFactory(), request, response);
}
@Override
public void doDelete(HttpServletRequest request, HttpServletResponse response)
throws IOException
{
doAction(GroupsActionFactory.httpDeleteFactory(), request, response);
}
@Override
public void doPut(HttpServletRequest request, HttpServletResponse response)
throws IOException
{
doAction(GroupsActionFactory.httpPutFactory(), request, response);
}
@Override
public void doHead(HttpServletRequest request, HttpServletResponse response)
throws IOException
{
doAction(GroupsActionFactory.httpHeadFactory(), request, response);
}
}