/*
************************************************************************
******************* CANADIAN ASTRONOMY DATA CENTRE *******************
************** CENTRE CANADIEN DE DONNÉES ASTRONOMIQUES **************
*
* (c) 2011. (c) 2011.
* 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: 5 $
*
************************************************************************
*/
package ca.nrc.cadc.cred.server.actions;
import ca.nrc.cadc.auth.*;
import java.util.Map;
import javax.security.auth.x500.X500Principal;
import javax.servlet.http.HttpServletRequest;
import ca.nrc.cadc.cred.server.CertificateDAO;
import ca.nrc.cadc.net.ResourceNotFoundException;
import ca.nrc.cadc.profiler.Profiler;
import java.security.Principal;
import java.util.HashSet;
import java.util.Set;
import javax.security.auth.Subject;
import org.apache.log4j.Logger;
/**
* Class used to construct the appropriate delegation action.
*
*/
public class DelegationActionFactory
{
private static final Logger log = Logger.getLogger(DelegationActionFactory.class);
// The HTTP Servlet request
private HttpServletRequest request;
// The set of trusted principals
private Map trustedPrincipals;
private String dataSource;
private String catalog;
private String schema;
/**
* Factory constructor.
*
* @param request
* @param trustedPrincipals
* @param dataSource
* @param catalog
* @param schema
*/
public DelegationActionFactory(HttpServletRequest request, Map trustedPrincipals,
String dataSource, String catalog, String schema)
{
this.request = request;
if ((trustedPrincipals == null) || trustedPrincipals.isEmpty())
{
throw new IllegalArgumentException("Null or empty trusted principals");
}
this.trustedPrincipals = trustedPrincipals;
this.dataSource = dataSource;
this.catalog = catalog;
this.schema = schema;
}
private CertificateDAO getDAO()
{
CertificateDAO.CertificateSchema config = new CertificateDAO.CertificateSchema(dataSource, catalog, schema);
return new CertificateDAO(config);
}
/**
* @return
* Return the appropriate delegation action for this request.
*/
public DelegationAction getDelegationAction()
{
Float daysValid = null;
X500Principal target = null;
// parameter for daysValid (compatibile with the old ProxyCertServlet)
String daysValidStr = request.getParameter("daysValid");
if (daysValidStr != null)
{
try
{
daysValid = new Float(daysValidStr);
if (daysValid < 0.0)
throw new IllegalArgumentException("invalid daysValid param:"
+ daysValidStr + " expected: number > 0.0");
}
catch (NumberFormatException ex)
{
throw new IllegalArgumentException("invalid daysValid param:"
+ daysValidStr + " expected: number > 0.0");
}
}
String resource = request.getPathInfo();
if (resource != null)
{
// TODO: switch to the ?idType= pattern instead of hiding it in the path
// not sure why whitespaces are not decode properly
resource = resource.replace("+", " ");
if (resource.startsWith("/"))
resource = resource.substring(1);
String[] pathElements = resource.split("/");
if (pathElements.length > 2)
{
return new NotFoundAction(null, trustedPrincipals);
}
if (pathElements[0].equalsIgnoreCase("dn"))
{
log.debug("GetProxyCertByDN: " + pathElements[1]);
target = new X500Principal(pathElements[1]);
}
else if (pathElements[0].equalsIgnoreCase("userid"))
{
log.debug("GetProxyCertByUserid: " + pathElements[1]);
try
{
target = getX500FromUserID(pathElements[1]);
}
catch(ResourceNotFoundException ex)
{
return new NotFoundAction(null, trustedPrincipals);
}
}
}
// target could be null
return new GetProxyCertByDN(target, daysValid, trustedPrincipals, getDAO());
}
protected X500Principal getX500FromUserID(final String userid)
throws ResourceNotFoundException
{
Profiler profiler = new Profiler(DelegationActionFactory.class);
// create subject with specified userid and augment with other identities
Subject s = AuthenticationUtil.getSubject(new PrincipalExtractor()
{
public Set getPrincipals()
{
Set ps = new HashSet();
ps.add(new HttpPrincipal(userid));
return ps;
}
public X509CertificateChain getCertificateChain()
{
return null;
}
public DelegationToken getDelegationToken()
{
return null;
}
/**
* Create and return a SSOCookieCredential from the request
*
* @return
*/
@Override
public SSOCookieCredential getSSOCookieCredential()
{
return null;
}
});
log.debug("augmented: " + s);
profiler.checkpoint("getUser");
Set xp = s.getPrincipals(X500Principal.class);
if (xp.isEmpty())
{
throw new ResourceNotFoundException("user not found: " + userid);
}
else
{
return xp.iterator().next();
}
}
/**
* Action indicating that a resource could not be found.
*/
static final class NotFoundAction extends DelegationAction
{
public NotFoundAction(X500Principal name,
Map trustedPrincipals)
{
super(name, Float.MIN_VALUE, trustedPrincipals, null);
}
@Override
public X509CertificateChain getCertificate(X500Principal name)
throws Exception
{
throw new ResourceNotFoundException("not found: " + name.getName());
}
}
/**
* Action indicating that a request is not currently supported.
*/
static final class UnsupportedOperationAction extends
DelegationAction
{
public UnsupportedOperationAction(X500Principal name,
Map trustedPrincipals)
{
super(name, Float.MIN_VALUE, trustedPrincipals, null);
}
@Override
public X509CertificateChain getCertificate(X500Principal name)
throws Exception
{
throw new UnsupportedOperationException();
}
}
}