text: /*
   * Copyright (c) 2018, 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.BufferOverflowException;
  import java.nio.BufferUnderflowException;
  import java.nio.ByteBuffer;
  import java.util.ArrayList;
  import java.util.LinkedHashMap;
  import java.util.Map;
  
  /**
   * A compact implementation of HandshakeContext for post-handshake messages
   */
  final class PostHandshakeContext extends HandshakeContext {
      private final static Map<Byte, SSLConsumer> consumers = Map.of(
          SSLHandshake.KEY_UPDATE.id, SSLHandshake.KEY_UPDATE,
          SSLHandshake.NEW_SESSION_TICKET.id, SSLHandshake.NEW_SESSION_TICKET);
  
      PostHandshakeContext(TransportContext context) throws IOException {
          super(context);
  
          if (!negotiatedProtocol.useTLS13PlusSpec()) {
              throw conContext.fatal(Alert.UNEXPECTED_MESSAGE,
                  "Post-handshake not supported in " + negotiatedProtocol.name);
          }
  
          this.localSupportedSignAlgs = new ArrayList<SignatureScheme>(
              context.conSession.getLocalSupportedSignatureSchemes());
  
          handshakeConsumers = new LinkedHashMap<>(consumers);
          handshakeFinished = true;
          handshakeSession = context.conSession;
      }
  
      @Override
      void kickstart() throws IOException {
          SSLHandshake.kickstart(this);
      }
  
      @Override
      void dispatch(byte handshakeType, ByteBuffer fragment) throws IOException {
          SSLConsumer consumer = handshakeConsumers.get(handshakeType);
          if (consumer == null) {
              throw conContext.fatal(Alert.UNEXPECTED_MESSAGE,
                      "Unexpected post-handshake message: " +
                              SSLHandshake.nameOf(handshakeType));
          }
  
          try {
              consumer.consume(this, fragment);
          } catch (UnsupportedOperationException unsoe) {
              throw conContext.fatal(Alert.UNEXPECTED_MESSAGE,
                      "Unsupported post-handshake message: " +
                              SSLHandshake.nameOf(handshakeType), unsoe);
          } catch (BufferUnderflowException | BufferOverflowException be) {
              throw conContext.fatal(Alert.DECODE_ERROR,
                      "Illegal handshake message: " +
                      SSLHandshake.nameOf(handshakeType), be);
          }
      }
  
      // Finish this PostHandshake event
      void finish() {
          handshakeSession = null;
      }
  }
  