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* 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 *
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* http://www.apache.org/licenses/LICENSE-2.0 *
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* Unless required by applicable law or agreed to in writing, *
* software distributed under the License is distributed on an *
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package org.apache.james.imapserver.netty;
import static org.jboss.netty.channel.Channels.pipeline;
import javax.annotation.Resource;
import javax.net.ssl.SSLEngine;
import org.apache.commons.configuration.ConfigurationException;
import org.apache.commons.configuration.HierarchicalConfiguration;
import org.apache.james.imap.api.ImapConstants;
import org.apache.james.imap.api.process.ImapProcessor;
import org.apache.james.imap.decode.ImapDecoder;
import org.apache.james.imap.encode.ImapEncoder;
import org.apache.james.imap.main.ImapRequestStreamHandler;
import org.apache.james.protocols.impl.ChannelGroupHandler;
import org.apache.james.protocols.impl.TimeoutHandler;
import org.apache.james.socket.netty.AbstractConfigurableAsyncServer;
import org.apache.james.socket.netty.ConnectionCountHandler;
import org.jboss.netty.channel.ChannelPipeline;
import org.jboss.netty.channel.ChannelPipelineFactory;
import org.jboss.netty.channel.group.ChannelGroup;
import org.jboss.netty.handler.connection.ConnectionLimitUpstreamHandler;
import org.jboss.netty.handler.connection.ConnectionPerIpLimitUpstreamHandler;
import org.jboss.netty.handler.ssl.SslHandler;
import org.jboss.netty.util.HashedWheelTimer;
/**
* NIO IMAP Server which use Netty
*
*/
public class IMAPServer extends AbstractConfigurableAsyncServer implements ImapConstants, IMAPServerMBean {
private static final String softwaretype = "JAMES "+VERSION+" Server ";
private final ConnectionCountHandler countHandler = new ConnectionCountHandler();
private String hello;
private ImapProcessor processor;
private ImapEncoder encoder;
private ImapDecoder decoder;
@Resource(name="imapDecoder")
public void setImapDecoder(ImapDecoder decoder) {
this.decoder = decoder;
}
@Resource(name="imapEncoder")
public void setImapEncoder(ImapEncoder encoder) {
this.encoder = encoder;
}
@Resource(name="imapProcessor")
public void setImapProcessor(ImapProcessor processor) {
this.processor = processor;
}
@Override
public void doConfigure( final HierarchicalConfiguration configuration ) throws ConfigurationException {
super.doConfigure(configuration);
hello = softwaretype + " Server " + getHelloName() + " is ready.";
}
/*
* (non-Javadoc)
* @see org.apache.james.socket.mina.AbstractAsyncServer#getDefaultPort()
*/
public int getDefaultPort() {
return 143;
}
/*
* (non-Javadoc)
* @see org.apache.james.socket.mina.AbstractAsyncServer#getServiceType()
*/
public String getServiceType() {
return "IMAP Service";
}
@Override
protected ChannelPipelineFactory createPipelineFactory(final ChannelGroup group) {
return new ChannelPipelineFactory() {
private final ChannelGroupHandler groupHandler = new ChannelGroupHandler(group);
private final HashedWheelTimer timer = new HashedWheelTimer();
// Timeout of 30 minutes See rfc2060 5.4 for details
private final static int TIMEOUT = 30 * 60;
public ChannelPipeline getPipeline() throws Exception {
ChannelPipeline pipeline = pipeline();
pipeline.addLast("groupHandler", groupHandler);
pipeline.addLast("timeoutHandler", new TimeoutHandler(timer, TIMEOUT));
pipeline.addLast("connectionLimit", new ConnectionLimitUpstreamHandler(IMAPServer.this.connectionLimit));
pipeline.addLast("connectionPerIpLimit", new ConnectionPerIpLimitUpstreamHandler(IMAPServer.this.connPerIP));
if (isSSLSocket()) {
// We need to set clientMode to false.
// See https://issues.apache.org/jira/browse/JAMES-1025
SSLEngine engine = getSSLContext().createSSLEngine();
engine.setUseClientMode(false);
pipeline.addFirst("sslHandler", new SslHandler(engine));
}
pipeline.addLast("connectionCountHandler", countHandler);
final ImapRequestStreamHandler handler = new ImapRequestStreamHandler(decoder, processor, encoder);
if (isStartTLSSupported()) {
pipeline.addLast("coreHandler", new ImapStreamChannelUpstreamHandler(hello, handler, getLogger(), IMAPServer.this.getTimeout(), getSSLContext().createSSLEngine()));
} else {
pipeline.addLast("coreHandler", new ImapStreamChannelUpstreamHandler(hello, handler, getLogger(), IMAPServer.this.getTimeout()));
}
return pipeline;
}
};
}
/*
* (non-Javadoc)
* @see org.apache.james.socket.ServerMBean#getCurrentConnections()
*/
public int getCurrentConnections() {
return countHandler.getCurrentConnectionCount();
}
/*
* (non-Javadoc)
* @see org.apache.james.imapserver.IMAPServerMBean#getStartTLSSupported()
*/
public boolean getStartTLSSupported() {
return isStartTLSSupported();
}
/*
* (non-Javadoc)
* @see org.apache.james.socket.ServerMBean#getMaximumConcurrentConnections()
*/
public int getMaximumConcurrentConnections() {
return connectionLimit;
}
}