1 /*
   2  * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package jdk.incubator.http;
  27 
  28 import java.io.IOException;
  29 import java.net.InetSocketAddress;
  30 import java.nio.ByteBuffer;
  31 import java.nio.channels.SocketChannel;
  32 import java.util.concurrent.CompletableFuture;
  33 import java.util.function.Consumer;
  34 import java.util.function.Supplier;
  35 import javax.net.ssl.SSLEngine;
  36 import javax.net.ssl.SSLParameters;
  37 import jdk.incubator.http.internal.common.ByteBufferReference;
  38 import jdk.incubator.http.internal.common.Utils;
  39 
  40 /**
  41  * An SSL tunnel built on a Plain (CONNECT) TCP tunnel.
  42  */
  43 class AsyncSSLTunnelConnection extends AbstractAsyncSSLConnection {
  44 
  45     final PlainTunnelingConnection plainConnection;
  46     final AsyncSSLDelegate sslDelegate;
  47     final String serverName;
  48 
  49     @Override
  50     public void connect() throws IOException, InterruptedException {
  51         plainConnection.connect();
  52         configureMode(Mode.ASYNC);
  53         startReading();
  54         sslDelegate.connect();
  55     }
  56 
  57     @Override
  58     boolean connected() {
  59         return plainConnection.connected() && sslDelegate.connected();
  60     }
  61 
  62     @Override
  63     public CompletableFuture<Void> connectAsync() {
  64         throw new InternalError();
  65     }
  66 
  67     AsyncSSLTunnelConnection(InetSocketAddress addr,
  68                         HttpClientImpl client,
  69                         String[] alpn,
  70                         InetSocketAddress proxy)
  71     {
  72         super(addr, client);
  73         this.serverName = Utils.getServerName(addr);
  74         this.plainConnection = new PlainTunnelingConnection(addr, proxy, client);
  75         this.sslDelegate = new AsyncSSLDelegate(plainConnection, client, alpn, serverName);
  76     }
  77 
  78     @Override
  79     synchronized void configureMode(Mode mode) throws IOException {
  80         super.configureMode(mode);
  81         plainConnection.configureMode(mode);
  82     }
  83 
  84     @Override
  85     SSLParameters sslParameters() {
  86         return sslDelegate.getSSLParameters();
  87     }
  88 
  89     @Override
  90     public String toString() {
  91         return "AsyncSSLTunnelConnection: " + super.toString();
  92     }
  93 
  94     @Override
  95     PlainTunnelingConnection plainConnection() {
  96         return plainConnection;
  97     }
  98 
  99     @Override
 100     AsyncSSLDelegate sslDelegate() {
 101         return sslDelegate;
 102     }
 103 
 104     @Override
 105     ConnectionPool.CacheKey cacheKey() {
 106         return ConnectionPool.cacheKey(address, plainConnection.proxyAddr);
 107     }
 108 
 109     @Override
 110     long write(ByteBuffer[] buffers, int start, int number) throws IOException {
 111         //debugPrint("Send", buffers, start, number);
 112         ByteBuffer[] bufs = Utils.reduce(buffers, start, number);
 113         long n = Utils.remaining(bufs);
 114         sslDelegate.writeAsync(ByteBufferReference.toReferences(bufs));
 115         sslDelegate.flushAsync();
 116         return n;
 117     }
 118 
 119     @Override
 120     long write(ByteBuffer buffer) throws IOException {
 121         //debugPrint("Send", buffer);
 122         long n = buffer.remaining();
 123         sslDelegate.writeAsync(ByteBufferReference.toReferences(buffer));
 124         sslDelegate.flushAsync();
 125         return n;
 126     }
 127 
 128     @Override
 129     public void writeAsync(ByteBufferReference[] buffers) throws IOException {
 130         sslDelegate.writeAsync(buffers);
 131     }
 132 
 133     @Override
 134     public void writeAsyncUnordered(ByteBufferReference[] buffers) throws IOException {
 135         sslDelegate.writeAsyncUnordered(buffers);
 136     }
 137 
 138     @Override
 139     public void flushAsync() throws IOException {
 140         sslDelegate.flushAsync();
 141     }
 142 
 143     @Override
 144     public void close() {
 145         Utils.close(sslDelegate, plainConnection.channel());
 146     }
 147 
 148     @Override
 149     void shutdownInput() throws IOException {
 150         plainConnection.channel().shutdownInput();
 151     }
 152 
 153     @Override
 154     void shutdownOutput() throws IOException {
 155         plainConnection.channel().shutdownOutput();
 156     }
 157 
 158     @Override
 159     SocketChannel channel() {
 160         return plainConnection.channel();
 161     }
 162 
 163     @Override
 164     boolean isProxied() {
 165         return true;
 166     }
 167 
 168     @Override
 169     public void setAsyncCallbacks(Consumer<ByteBufferReference> asyncReceiver,
 170                                   Consumer<Throwable> errorReceiver,
 171                                   Supplier<ByteBufferReference> readBufferSupplier) {
 172         sslDelegate.setAsyncCallbacks(asyncReceiver, errorReceiver, readBufferSupplier);
 173         plainConnection.setAsyncCallbacks(sslDelegate::asyncReceive, errorReceiver, sslDelegate::getNetBuffer);
 174     }
 175 
 176     @Override
 177     public void startReading() {
 178         plainConnection.startReading();
 179         sslDelegate.startReading();
 180     }
 181 
 182     @Override
 183     public void stopAsyncReading() {
 184         plainConnection.stopAsyncReading();
 185     }
 186 
 187     @Override
 188     public void enableCallback() {
 189         sslDelegate.enableCallback();
 190     }
 191 
 192     @Override
 193     public void closeExceptionally(Throwable cause) throws IOException {
 194         Utils.close(cause, sslDelegate, plainConnection.channel());
 195     }
 196 
 197     @Override
 198     SSLEngine getEngine() {
 199         return sslDelegate.getEngine();
 200     }
 201 
 202     @Override
 203     SSLTunnelConnection downgrade() {
 204         return new SSLTunnelConnection(this);
 205     }
 206 }