/**
* 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.camel.component.netty4;
import java.util.List;
import java.util.concurrent.TimeUnit;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLEngine;
import io.netty.channel.Channel;
import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelPipeline;
import io.netty.handler.ssl.SslHandler;
import io.netty.handler.timeout.ReadTimeoutHandler;
import org.apache.camel.component.netty4.handlers.ClientChannelHandler;
import org.apache.camel.component.netty4.ssl.SSLEngineFactory;
import org.apache.camel.util.ObjectHelper;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class DefaultClientInitializerFactory extends ClientInitializerFactory {
private static final Logger LOG = LoggerFactory.getLogger(DefaultClientInitializerFactory.class);
private final NettyProducer producer;
private SSLContext sslContext;
public DefaultClientInitializerFactory(NettyProducer producer) {
this.producer = producer;
try {
this.sslContext = createSSLContext(producer);
} catch (Exception e) {
throw ObjectHelper.wrapRuntimeCamelException(e);
}
}
protected void initChannel(Channel ch) throws Exception {
// create a new pipeline
ChannelPipeline channelPipeline = ch.pipeline();
SslHandler sslHandler = configureClientSSLOnDemand();
if (sslHandler != null) {
//TODO must close on SSL exception
//sslHandler.setCloseOnSSLException(true);
LOG.debug("Client SSL handler configured and added to the ChannelPipeline: {}", sslHandler);
addToPipeline("ssl", channelPipeline, sslHandler);
}
List<ChannelHandler> decoders = producer.getConfiguration().getDecoders();
for (int x = 0; x < decoders.size(); x++) {
ChannelHandler decoder = decoders.get(x);
if (decoder instanceof ChannelHandlerFactory) {
// use the factory to create a new instance of the channel as it may not be shareable
decoder = ((ChannelHandlerFactory) decoder).newChannelHandler();
}
addToPipeline("decoder-" + x, channelPipeline, decoder);
}
List<ChannelHandler> encoders = producer.getConfiguration().getEncoders();
for (int x = 0; x < encoders.size(); x++) {
ChannelHandler encoder = encoders.get(x);
if (encoder instanceof ChannelHandlerFactory) {
// use the factory to create a new instance of the channel as it may not be shareable
encoder = ((ChannelHandlerFactory) encoder).newChannelHandler();
}
addToPipeline("encoder-" + x, channelPipeline, encoder);
}
// do we use request timeout?
if (producer.getConfiguration().getRequestTimeout() > 0) {
if (LOG.isTraceEnabled()) {
LOG.trace("Using request timeout {} millis", producer.getConfiguration().getRequestTimeout());
}
ChannelHandler timeout = new ReadTimeoutHandler(producer.getConfiguration().getRequestTimeout(), TimeUnit.MILLISECONDS);
addToPipeline("timeout", channelPipeline, timeout);
}
// our handler must be added last
addToPipeline("handler", channelPipeline, new ClientChannelHandler(producer));
LOG.trace("Created ChannelPipeline: {}", channelPipeline);
}
private void addToPipeline(String name, ChannelPipeline pipeline, ChannelHandler handler) {
pipeline.addLast(name, handler);
}
private SSLContext createSSLContext(NettyProducer producer) throws Exception {
NettyConfiguration configuration = producer.getConfiguration();
if (!configuration.isSsl()) {
return null;
}
SSLContext answer;
// create ssl context once
if (configuration.getSslContextParameters() != null) {
answer = configuration.getSslContextParameters().createSSLContext();
} else {
if (configuration.getKeyStoreFile() == null && configuration.getKeyStoreResource() == null) {
LOG.debug("keystorefile is null");
}
if (configuration.getTrustStoreFile() == null && configuration.getTrustStoreResource() == null) {
LOG.debug("truststorefile is null");
}
if (configuration.getPassphrase().toCharArray() == null) {
LOG.debug("passphrase is null");
}
SSLEngineFactory sslEngineFactory;
if (configuration.getKeyStoreFile() != null || configuration.getTrustStoreFile() != null) {
sslEngineFactory = new SSLEngineFactory();
answer = sslEngineFactory.createSSLContext(producer.getContext().getClassResolver(),
configuration.getKeyStoreFormat(),
configuration.getSecurityProvider(),
"file:" + configuration.getKeyStoreFile().getPath(),
"file:" + configuration.getTrustStoreFile().getPath(),
configuration.getPassphrase().toCharArray());
} else {
sslEngineFactory = new SSLEngineFactory();
answer = sslEngineFactory.createSSLContext(producer.getContext().getClassResolver(),
configuration.getKeyStoreFormat(),
configuration.getSecurityProvider(),
configuration.getKeyStoreResource(),
configuration.getTrustStoreResource(),
configuration.getPassphrase().toCharArray());
}
}
return answer;
}
private SslHandler configureClientSSLOnDemand() throws Exception {
if (!producer.getConfiguration().isSsl()) {
return null;
}
if (producer.getConfiguration().getSslHandler() != null) {
return producer.getConfiguration().getSslHandler();
} else if (sslContext != null) {
SSLEngine engine = sslContext.createSSLEngine();
engine.setUseClientMode(true);
if (producer.getConfiguration().getSslContextParameters() == null) {
// just set the enabledProtocols if the SslContextParameter doesn't set
engine.setEnabledProtocols(producer.getConfiguration().getEnabledProtocols().split(","));
}
return new SslHandler(engine);
}
return null;
}
@Override
public ClientInitializerFactory createPipelineFactory(NettyProducer producer) {
return new DefaultClientInitializerFactory(producer);
}
}