/* * Copyright (c) 2009, 2011, 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. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ 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 {        return Krb5Util.getServiceCreds(GSSCaller.CALLER_SSL_SERVER, null, acc).getKKeys();    }     @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);    }}