001    /**
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    package org.apache.camel.component.netty;
018    
019    import java.util.List;
020    import javax.net.ssl.SSLEngine;
021    
022    import org.apache.camel.component.netty.handlers.ClientChannelHandler;
023    import org.apache.camel.component.netty.ssl.SSLEngineFactory;
024    import org.apache.commons.logging.Log;
025    import org.apache.commons.logging.LogFactory;
026    import org.jboss.netty.channel.ChannelDownstreamHandler;
027    import org.jboss.netty.channel.ChannelPipeline;
028    import org.jboss.netty.channel.ChannelPipelineFactory;
029    import org.jboss.netty.channel.ChannelUpstreamHandler;
030    import org.jboss.netty.channel.Channels;
031    import org.jboss.netty.handler.ssl.SslHandler;
032    
033    public class ClientPipelineFactory implements ChannelPipelineFactory {
034        private static final transient Log LOG = LogFactory.getLog(ClientPipelineFactory.class);
035        private NettyProducer producer;
036        private ChannelPipeline channelPipeline;
037    
038        public ClientPipelineFactory(NettyProducer producer) {
039            this.producer = producer;
040        }
041    
042        public ChannelPipeline getPipeline() throws Exception {
043            if (channelPipeline != null) {
044                // http://docs.jboss.org/netty/3.1/api/org/jboss/netty/handler/ssl/SslHandler.html
045                // To restart the SSL session, you must remove the existing closed SslHandler
046                // from the ChannelPipeline, insert a new SslHandler with a new SSLEngine into
047                // the pipeline, and start the handshake process as described in the first section.
048                if (channelPipeline.remove("ssl") != null) {
049                    // reinitialize and add SSL first
050                    if (LOG.isDebugEnabled()) {
051                        LOG.debug("Client SSL handler re-initialized on the ChannelPipeline");
052                    }
053                    channelPipeline.addFirst("ssl", configureClientSSLOnDemand());
054                }
055                return channelPipeline;
056            }
057    
058            channelPipeline = Channels.pipeline();
059    
060            SslHandler sslHandler = configureClientSSLOnDemand();
061            if (sslHandler != null) {
062                if (LOG.isDebugEnabled()) {
063                    LOG.debug("Client SSL handler configured and added to the ChannelPipeline");
064                }
065                channelPipeline.addLast("ssl", sslHandler);
066            }
067    
068            List<ChannelUpstreamHandler> decoders = producer.getConfiguration().getDecoders();
069            for (int x = 0; x < decoders.size(); x++) {
070                channelPipeline.addLast("decoder-" + x, decoders.get(x));
071            }
072    
073            List<ChannelDownstreamHandler> encoders = producer.getConfiguration().getEncoders();
074            for (int x = 0; x < encoders.size(); x++) {
075                channelPipeline.addLast("encoder-" + x, encoders.get(x));
076            }
077    
078            if (producer.getConfiguration().getHandler() != null) {
079                channelPipeline.addLast("handler", producer.getConfiguration().getHandler());
080            } else {
081                channelPipeline.addLast("handler", new ClientChannelHandler(producer));
082            }
083    
084            return channelPipeline;
085        }
086    
087        private SslHandler configureClientSSLOnDemand() throws Exception {
088            if (!producer.getConfiguration().isSsl()) {
089                return null;
090            }
091    
092            if (producer.getConfiguration().getSslHandler() != null) {
093                return producer.getConfiguration().getSslHandler();
094            } else {
095                if (producer.getConfiguration().getKeyStoreFile() == null) {
096                    LOG.debug("keystorefile is null");
097                }
098                if (producer.getConfiguration().getTrustStoreFile() == null) {
099                    LOG.debug("truststorefile is null");
100                }
101                if (producer.getConfiguration().getPassphrase().toCharArray() == null) {
102                    LOG.debug("passphrase is null");
103                }
104                SSLEngineFactory sslEngineFactory = new SSLEngineFactory(
105                    producer.getConfiguration().getKeyStoreFormat(),
106                    producer.getConfiguration().getSecurityProvider(),
107                    producer.getConfiguration().getKeyStoreFile(),
108                    producer.getConfiguration().getTrustStoreFile(),
109                    producer.getConfiguration().getPassphrase().toCharArray());
110                SSLEngine sslEngine = sslEngineFactory.createClientSSLEngine();
111                return new SslHandler(sslEngine);
112            }
113        }
114    
115    }