/*
************************************************************************
******************* CANADIAN ASTRONOMY DATA CENTRE *******************
************** CENTRE CANADIEN DE DONNÉES ASTRONOMIQUES **************
*
* (c) 2010. (c) 2010.
* 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.tomcat;
import java.net.InetAddress;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.UnknownHostException;
import org.apache.log4j.Logger;
/**
* A very simple caching IVOA Registry client. All the lookups done by this client use a properties
* file named RegistryClient.properties found via the classpath.
*
* Note for developers: You can set a system property to force this class to replace the hostname
* in the resuting URL with the canonical hostname of the local host. This is useful for testing:
*
*
* ca.nrc.cadc.reg.client.RegistryClient.local=true
*
*
* Note for developers: You can set a system property to force this class to replace the hostname
* in the resuting URL with an arbitrary hostname. This is useful for testing a specific remote server:
*
*
* ca.nrc.cadc.reg.client.RegistryClient.host=www.example.com
*
*
* This class is a forked and trimmed version of ca.nrc.cadc.reg.client.RegistryClient. It was forked
* to allow the realm implementation to be deployed without library dependencies.
*
* @author pdowler
*/
public class AuthenticationLookup
{
private static Logger log = Logger.getLogger(AuthenticationLookup.class);
private static final String LOCAL_PROPERTY = "ca.nrc.cadc.reg.client.RegistryClient.local";
private static final String HOST_PROPERTY = "ca.nrc.cadc.reg.client.RegistryClient.host";
private static final String SHORT_HOST_PROPERTY = "ca.nrc.cadc.reg.client.RegistryClient.shortHostname";
private String hostname;
private String shortHostname;
private void init()
{
try
{
String localP = System.getProperty(LOCAL_PROPERTY);
String hostP = System.getProperty(HOST_PROPERTY);
String shortHostP = System.getProperty(SHORT_HOST_PROPERTY);
log.debug(" local: " + localP);
log.debug(" host: " + hostP);
log.debug("shortHost: " + shortHostP);
if ("true".equals(localP))
{
log.debug(LOCAL_PROPERTY
+ " is set, assuming localhost runs the service");
this.hostname = InetAddress.getLocalHost()
.getCanonicalHostName();
}
if (shortHostP != null)
{
shortHostP = shortHostP.trim();
if (shortHostP.length() > 0)
{
this.shortHostname = shortHostP;
}
}
if (hostP != null && this.hostname == null)
{
hostP = hostP.trim();
if (hostP.length() > 0)
{
this.hostname = hostP;
}
}
}
catch (UnknownHostException ex)
{
log.warn("failed to find localhost name via name resolution ("
+ ex.toString() + "): using localhost");
this.hostname = "localhost";
}
}
public URL configureAuthenticationServiceURL(URL serviceURL)
throws MalformedURLException
{
init();
log.debug("configureAuthenticationServiceURL: " + serviceURL + ","
+ serviceURL.getProtocol() + "," + serviceURL.getPath());
final StringBuilder sb = new StringBuilder();
if (hostname != null || shortHostname != null)
{
sb.append(serviceURL.getProtocol());
sb.append("://");
if (shortHostname != null)
{
String hname = shortHostname;
String fqhn = serviceURL.getHost();
int i = fqhn.indexOf('.');
if (i > 0)
{
String domain = fqhn.substring(i);
hname += domain;
}
sb.append(hname);
}
else
{
sb.append(hostname);
}
int p = serviceURL.getPort();
if (p > 0 && p != serviceURL.getDefaultPort())
{
sb.append(":");
sb.append(p);
}
sb.append(serviceURL.getPath());
}
else
{
sb.append(serviceURL);
}
return new URL(sb.toString());
}
}