/****************************************************************
* 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.james.protocols.impl;
import java.io.IOException;
import java.io.InputStream;
import java.net.InetSocketAddress;
import javax.net.ssl.SSLEngine;
import org.apache.commons.logging.Log;
import org.apache.james.protocols.api.Response;
import org.apache.james.protocols.api.TLSSupportedSession;
import org.jboss.netty.channel.Channel;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.handler.ssl.SslHandler;
import org.jboss.netty.handler.stream.ChunkedStream;
/**
* Abstract implementation of TLSSupportedSession which use Netty
*
*
*/
public abstract class AbstractSession implements TLSSupportedSession {
protected ChannelHandlerContext handlerContext;
protected InetSocketAddress socketAddress;
protected Log logger;
protected SSLEngine engine;
protected String user;
public AbstractSession(Log logger, ChannelHandlerContext handlerContext, SSLEngine engine) {
this.handlerContext = handlerContext;
this.socketAddress = (InetSocketAddress) handlerContext.getChannel().getRemoteAddress();
this.logger = logger;
this.engine = engine;
}
public AbstractSession(Log logger, ChannelHandlerContext handlerContext) {
this(logger, handlerContext, null);
}
/**
* @see org.apache.james.api.protocol.TLSSupportedSession#getRemoteHost()
*/
public String getRemoteHost() {
return socketAddress.getHostName();
}
/**
* @see org.apache.james.api.protocol.TLSSupportedSession#getRemoteIPAddress()
*/
public String getRemoteIPAddress() {
return socketAddress.getAddress().getHostAddress();
}
/**
* @see org.apache.james.api.protocol.TLSSupportedSession#getUser()
*/
public String getUser() {
return user;
}
/**
* @see org.apache.james.api.protocol.TLSSupportedSession#setUser(java.lang.String)
*/
public void setUser(String user) {
this.user = user;
}
/**
* Return underlying IoSession
*
* @return session
*/
public ChannelHandlerContext getChannelHandlerContext() {
return handlerContext;
}
/**
* @see org.apache.james.api.protocol.TLSSupportedSession#isStartTLSSupported()
*/
public boolean isStartTLSSupported() {
return engine != null;
}
/**
* @see org.apache.james.api.protocol.TLSSupportedSession#isTLSStarted()
*/
public boolean isTLSStarted() {
if (isStartTLSSupported()) {
return getChannelHandlerContext().getPipeline().get("sslHandler") != null;
}
return false;
}
/**
* @see org.apache.james.api.protocol.TLSSupportedSession#startTLS()
*/
public void startTLS() throws IOException {
if (isStartTLSSupported() && isTLSStarted() == false) {
getChannelHandlerContext().getChannel().setReadable(false);
SslHandler filter = new SslHandler(engine);
filter.getEngine().setUseClientMode(false);
resetState();
getChannelHandlerContext().getPipeline().addFirst("sslHandler", filter);
getChannelHandlerContext().getChannel().setReadable(true);
}
}
/**
* @see org.apache.james.api.protocol.ProtocolSession#getLogger()
*/
public Log getLogger() {
return logger;
}
/*
* (non-Javadoc)
* @see org.apache.james.api.protocol.ProtocolSession#writeResponse(org.apache.james.api.protocol.Response)
*/
public void writeResponse(Response response) {
Channel channel = getChannelHandlerContext().getChannel();
if (response != null && channel.isConnected()) {
channel.write(response);
if (response.isEndSession()) {
channel.close();
}
}
}
/*
* (non-Javadoc)
* @see org.apache.james.protocols.api.ProtocolSession#writeStream(java.io.InputStream)
*/
public void writeStream(InputStream stream) {
Channel channel = getChannelHandlerContext().getChannel();
if (stream != null && channel.isConnected()) {
channel.write(new ChunkedStream(stream));
}
}
}