| /* |
| * 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.directory.server.kerberos.protocol.codec; |
| |
| |
| import java.nio.ByteBuffer; |
| |
| import org.apache.directory.api.asn1.ber.Asn1Decoder; |
| import org.apache.directory.shared.kerberos.codec.KerberosMessageContainer; |
| import org.apache.mina.core.buffer.IoBuffer; |
| import org.apache.mina.core.session.IoSession; |
| import org.apache.mina.filter.codec.ProtocolDecoderAdapter; |
| import org.apache.mina.filter.codec.ProtocolDecoderOutput; |
| |
| |
| /** |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class MinaKerberosDecoder extends ProtocolDecoderAdapter |
| { |
| /** the key used while storing message container in the session */ |
| private static final String KERBEROS_MESSAGE_CONTAINER = "kerberosMessageContainer"; |
| |
| /** The ASN 1 decoder instance */ |
| private Asn1Decoder asn1Decoder = new Asn1Decoder(); |
| |
| |
| @Override |
| public void decode( IoSession session, IoBuffer in, ProtocolDecoderOutput out ) throws Exception |
| { |
| ByteBuffer buf = in.buf(); |
| |
| KerberosMessageContainer kerberosMessageContainer = ( KerberosMessageContainer ) session |
| .getAttribute( KERBEROS_MESSAGE_CONTAINER ); |
| |
| if ( kerberosMessageContainer == null ) |
| { |
| kerberosMessageContainer = new KerberosMessageContainer(); |
| session.setAttribute( KERBEROS_MESSAGE_CONTAINER, kerberosMessageContainer ); |
| kerberosMessageContainer.setStream( buf ); |
| kerberosMessageContainer.setGathering( true ); |
| kerberosMessageContainer.setTCP( !session.getTransportMetadata().isConnectionless() ); |
| } |
| |
| try |
| { |
| Object obj = KerberosDecoder.decode( kerberosMessageContainer, asn1Decoder ); |
| out.write( obj ); |
| } |
| finally |
| { |
| session.removeAttribute( KERBEROS_MESSAGE_CONTAINER ); |
| } |
| } |
| |
| } |