| // |
| // ======================================================================== |
| // Copyright (c) 1995-2017 Mort Bay Consulting Pty. Ltd. |
| // ------------------------------------------------------------------------ |
| // All rights reserved. This program and the accompanying materials |
| // are made available under the terms of the Eclipse Public License v1.0 |
| // and Apache License v2.0 which accompanies this distribution. |
| // |
| // The Eclipse Public License is available at |
| // http://www.eclipse.org/legal/epl-v10.html |
| // |
| // The Apache License v2.0 is available at |
| // http://www.opensource.org/licenses/apache2.0.php |
| // |
| // You may elect to redistribute this code under either of these licenses. |
| // ======================================================================== |
| // |
| |
| package org.eclipse.jetty.server; |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.util.List; |
| |
| import javax.net.ssl.SSLEngine; |
| import javax.net.ssl.SSLEngineResult; |
| |
| import org.eclipse.jetty.io.AbstractConnection; |
| import org.eclipse.jetty.io.Connection; |
| import org.eclipse.jetty.io.EndPoint; |
| import org.eclipse.jetty.util.BufferUtil; |
| import org.eclipse.jetty.util.log.Log; |
| import org.eclipse.jetty.util.log.Logger; |
| |
| public abstract class NegotiatingServerConnection extends AbstractConnection |
| { |
| private static final Logger LOG = Log.getLogger(NegotiatingServerConnection.class); |
| |
| private final Connector connector; |
| private final SSLEngine engine; |
| private final List<String> protocols; |
| private final String defaultProtocol; |
| private String protocol; // No need to be volatile: it is modified and read by the same thread |
| |
| protected NegotiatingServerConnection(Connector connector, EndPoint endPoint, SSLEngine engine, List<String> protocols, String defaultProtocol) |
| { |
| super(endPoint, connector.getExecutor()); |
| this.connector = connector; |
| this.protocols = protocols; |
| this.defaultProtocol = defaultProtocol; |
| this.engine = engine; |
| } |
| |
| protected List<String> getProtocols() |
| { |
| return protocols; |
| } |
| |
| protected String getDefaultProtocol() |
| { |
| return defaultProtocol; |
| } |
| |
| protected SSLEngine getSSLEngine() |
| { |
| return engine; |
| } |
| |
| protected String getProtocol() |
| { |
| return protocol; |
| } |
| |
| protected void setProtocol(String protocol) |
| { |
| this.protocol = protocol; |
| } |
| |
| @Override |
| public void onOpen() |
| { |
| super.onOpen(); |
| fillInterested(); |
| } |
| |
| @Override |
| public void onFillable() |
| { |
| int filled = fill(); |
| |
| if (filled == 0) |
| { |
| if (protocol == null) |
| { |
| if (engine.getHandshakeStatus() == SSLEngineResult.HandshakeStatus.NOT_HANDSHAKING) |
| { |
| // Here the SSL handshake is finished, but the protocol has not been negotiated. |
| if (LOG.isDebugEnabled()) |
| LOG.debug("{} could not negotiate protocol, SSLEngine: {}", this, engine); |
| close(); |
| } |
| else |
| { |
| // Here the SSL handshake is not finished yet but we filled 0 bytes, |
| // so we need to read more. |
| fillInterested(); |
| } |
| } |
| else |
| { |
| ConnectionFactory connectionFactory = connector.getConnectionFactory(protocol); |
| if (connectionFactory == null) |
| { |
| if (LOG.isDebugEnabled()) |
| LOG.debug("{} application selected protocol '{}', but no correspondent {} has been configured", |
| this, protocol, ConnectionFactory.class.getName()); |
| close(); |
| } |
| else |
| { |
| EndPoint endPoint = getEndPoint(); |
| Connection newConnection = connectionFactory.newConnection(connector, endPoint); |
| endPoint.upgrade(newConnection); |
| } |
| } |
| } |
| else if (filled < 0) |
| { |
| // Something went bad, we need to close. |
| if (LOG.isDebugEnabled()) |
| LOG.debug("{} closing on client close", this); |
| close(); |
| } |
| else |
| { |
| // Must never happen, since we fill using an empty buffer |
| throw new IllegalStateException(); |
| } |
| } |
| |
| private int fill() |
| { |
| try |
| { |
| return getEndPoint().fill(BufferUtil.EMPTY_BUFFER); |
| } |
| catch (IOException x) |
| { |
| LOG.debug(x); |
| close(); |
| return -1; |
| } |
| } |
| |
| @Override |
| public void close() |
| { |
| // Gentler close for SSL. |
| getEndPoint().shutdownOutput(); |
| super.close(); |
| } |
| } |