| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.wss4j.common.kerberos; |
| |
| import java.security.Key; |
| |
| import org.ietf.jgss.GSSContext; |
| import org.ietf.jgss.GSSException; |
| |
| /** |
| * Encapsulates Kerberos token (service ticket) and secret key returned by |
| * {@link KerberosClientExceptionAction}. |
| * |
| * The secret key might be null, in which case it must be obtained from the current subject's |
| * {@link javax.security.auth.kerberos.KerberosTicket} private credential. |
| * |
| * @author bgde |
| */ |
| public class KerberosContext { |
| private static final org.slf4j.Logger LOG = |
| org.slf4j.LoggerFactory.getLogger(KerberosContext.class); |
| |
| private boolean disposed; |
| private GSSContext gssContext; |
| private byte[] kerberosToken; |
| private Key secretKey; |
| |
| /** |
| * @return The Kerberos service ticket bytes or null they are not available/set. |
| * @throws IllegalStateException If this context was already disposed. |
| */ |
| public byte[] getKerberosToken() { |
| if (disposed) { |
| throw new IllegalStateException("Kerberos context is disposed."); |
| } |
| |
| return kerberosToken; |
| } |
| |
| public void setKerberosToken(byte[] kerberosToken) { |
| this.kerberosToken = kerberosToken; |
| } |
| |
| /** |
| * @return The secret session key, or null if it is not available. |
| * In this case it must be obtained from the current subject's {@link javax.security.auth.kerberos.KerberosTicket KerberosTicket} private credential. |
| * |
| * @see {@link javax.security.auth.kerberos.KerberosTicket#getSessionKey()} |
| * @throws IllegalStateException If this context was already disposed. |
| */ |
| public Key getSecretKey() { |
| if (disposed) { |
| throw new IllegalStateException("Kerberos context is disposed."); |
| } |
| return secretKey; |
| } |
| |
| public void setSecretKey(Key secretKey) { |
| this.secretKey = secretKey; |
| } |
| |
| /** |
| * @return The GSSContext as initialized during Kerberos service ticket retrieval. |
| * @throws IllegalStateException If this context was already disposed. |
| */ |
| public GSSContext getGssContext() { |
| if (disposed) { |
| throw new IllegalStateException("Kerberos context is disposed."); |
| } |
| return this.gssContext; |
| } |
| |
| public void setGssContext(GSSContext gssContext) { |
| this.gssContext = gssContext; |
| } |
| |
| /** |
| * Destroys all data held in this context instance. After calling this method, |
| * an attempt to retrieve any field of this context instance will throw an IllegalArgumentException. |
| */ |
| public void dispose() { |
| if (!disposed) { |
| if (kerberosToken != null) { |
| for (int i = 0; i < kerberosToken.length; i++) { |
| kerberosToken[i] = 0; |
| } |
| } |
| |
| secretKey = null; |
| |
| if (gssContext != null) { |
| try { |
| gssContext.dispose(); |
| } catch (GSSException e) { |
| LOG.error("Error disposing of the GSSContext", e); |
| } |
| } |
| |
| disposed = true; |
| } |
| } |
| |
| /** |
| * Checks if this context instance is already destroyed. |
| */ |
| public boolean isDisposed() { |
| return disposed; |
| } |
| } |