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	/*
	* Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Oracle designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Oracle in the LICENSE file that accompanied this code.
	*
	* This code is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/

	package sun.security.ssl;

	import java.io.IOException;
	import java.nio.ByteBuffer;
	import sun.security.ssl.SSLHandshake.HandshakeMessage;

	/**
	* Pack of the ServerHelloDone handshake message.
	*/
	final class ServerHelloDone {
	static final SSLConsumer handshakeConsumer =
	new ServerHelloDoneConsumer();
	static final HandshakeProducer handshakeProducer =
	new ServerHelloDoneProducer();

	/**
	* The ServerHelloDone handshake message.
	*/
	static final class ServerHelloDoneMessage extends HandshakeMessage {
	ServerHelloDoneMessage(HandshakeContext handshakeContext) {
	super(handshakeContext);
	}

	ServerHelloDoneMessage(HandshakeContext handshakeContext,
	ByteBuffer m) throws IOException {
	super(handshakeContext);
	if (m.hasRemaining()) {
	throw handshakeContext.conContext.fatal(Alert.ILLEGAL_PARAMETER,
	"Error parsing ServerHelloDone message: not empty");
	}
	}

	@Override
	public SSLHandshake handshakeType() {
	return SSLHandshake.SERVER_HELLO_DONE;
	}

	@Override
	public int messageLength() {
	return 0;
	}

	@Override
	public void send(HandshakeOutStream s) throws IOException {
	// empty, nothing to send
	}

	@Override
	public String toString() {
	return "<empty>";
	}
	}

	/**
	* The "ServerHelloDone" handshake message producer.
	*/
	private static final
	class ServerHelloDoneProducer implements HandshakeProducer {
	// Prevent instantiation of this class.
	private ServerHelloDoneProducer() {
	// blank
	}

	@Override
	public byte[] produce(ConnectionContext context,
	HandshakeMessage message) throws IOException {
	// The producing happens in server side only.
	ServerHandshakeContext shc = (ServerHandshakeContext)context;

	ServerHelloDoneMessage shdm = new ServerHelloDoneMessage(shc);
	if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) {
	SSLLogger.fine(
	"Produced ServerHelloDone handshake message", shdm);
	}

	// Output the handshake message.
	shdm.write(shc.handshakeOutput);
	shc.handshakeOutput.flush();

	//
	// update
	//
	shc.handshakeConsumers.put(SSLHandshake.CLIENT_KEY_EXCHANGE.id,
	SSLHandshake.CLIENT_KEY_EXCHANGE);
	shc.conContext.consumers.put(ContentType.CHANGE_CIPHER_SPEC.id,
	ChangeCipherSpec.t10Consumer);
	shc.handshakeConsumers.put(SSLHandshake.FINISHED.id,
	SSLHandshake.FINISHED);

	// The handshake message has been delivered.
	return null;
	}
	}

	/**
	* The "ServerHelloDone" handshake message consumer.
	*/
	private static final
	class ServerHelloDoneConsumer implements SSLConsumer {
	// Prevent instantiation of this class.
	private ServerHelloDoneConsumer() {
	// blank
	}

	@Override
	public void consume(ConnectionContext context,
	ByteBuffer message) throws IOException {
	// The consuming happens in client side only.
	ClientHandshakeContext chc = (ClientHandshakeContext)context;

	SSLConsumer certStatCons = chc.handshakeConsumers.remove(
	SSLHandshake.CERTIFICATE_STATUS.id);
	if (certStatCons != null) {
	// Stapling was active but no certificate status message
	// was sent. We need to run the absence handler which will
	// check the certificate chain.
	CertificateStatus.handshakeAbsence.absent(context, null);
	}

	// clean up this consumer
	chc.handshakeConsumers.clear();

	ServerHelloDoneMessage shdm =
	new ServerHelloDoneMessage(chc, message);
	if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) {
	SSLLogger.fine(
	"Consuming ServerHelloDone handshake message", shdm);
	}

	//
	// validate
	//
	// blank

	//
	// update
	//
	chc.handshakeProducers.put(SSLHandshake.CLIENT_KEY_EXCHANGE.id,
	SSLHandshake.CLIENT_KEY_EXCHANGE);
	chc.handshakeProducers.put(SSLHandshake.FINISHED.id,
	SSLHandshake.FINISHED);
	//
	// produce
	//
	SSLHandshake[] probableHandshakeMessages = new SSLHandshake[] {
	// full handshake messages
	SSLHandshake.CERTIFICATE,
	SSLHandshake.CLIENT_KEY_EXCHANGE,
	SSLHandshake.CERTIFICATE_VERIFY,
	SSLHandshake.FINISHED
	};

	for (SSLHandshake hs : probableHandshakeMessages) {
	HandshakeProducer handshakeProducer =
	chc.handshakeProducers.remove(hs.id);
	if (handshakeProducer != null) {
	handshakeProducer.produce(context, null);
	}
	}
	}
	}
	}

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