/*
* Copyright (c) 2009, 2012, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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package sun.security.ssl.krb5;
import java.security.AccessControlContext;
import java.security.Permission;
import java.security.Principal;
import javax.crypto.SecretKey;
import javax.security.auth.Subject;
import javax.security.auth.kerberos.KerberosKey;
import javax.security.auth.kerberos.ServicePermission;
import javax.security.auth.login.LoginException;
import sun.security.jgss.GSSCaller;
import sun.security.jgss.krb5.Krb5Util;
import sun.security.krb5.PrincipalName;
import sun.security.ssl.Krb5Proxy;
/**
* An implementation of Krb5Proxy that simply delegates to the appropriate
* Kerberos APIs.
*/
public class Krb5ProxyImpl implements Krb5Proxy {
public Krb5ProxyImpl() { }
@Override
public Subject getClientSubject(AccessControlContext acc)
throws LoginException {
return Krb5Util.getSubject(GSSCaller.CALLER_SSL_CLIENT, acc);
}
@Override
public Subject getServerSubject(AccessControlContext acc)
throws LoginException {
return Krb5Util.getSubject(GSSCaller.CALLER_SSL_SERVER, acc);
}
@Override
public SecretKey[] getServerKeys(AccessControlContext acc)
throws LoginException {
Krb5Util.ServiceCreds serviceCreds =
Krb5Util.getServiceCreds(GSSCaller.CALLER_SSL_SERVER, null, acc);
return serviceCreds != null ? serviceCreds.getKKeys() :
new KerberosKey[0];
}
@Override
public String getServerPrincipalName(SecretKey kerberosKey) {
return ((KerberosKey)kerberosKey).getPrincipal().getName();
}
@Override
public String getPrincipalHostName(Principal principal) {
if (principal == null) {
return null;
}
String hostName = null;
try {
PrincipalName princName =
new PrincipalName(principal.getName(),
PrincipalName.KRB_NT_SRV_HST);
String[] nameParts = princName.getNameStrings();
if (nameParts.length >= 2) {
hostName = nameParts[1];
}
} catch (Exception e) {
// ignore
}
return hostName;
}
@Override
public Permission getServicePermission(String principalName,
String action) {
return new ServicePermission(principalName, action);
}
}