| /* |
| * Copyright (c) 2015, 2016, 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 jdk.incubator.http; |
| |
| import jdk.incubator.http.internal.common.ByteBufferReference; |
| import jdk.incubator.http.internal.common.MinimalFuture; |
| |
| import java.io.IOException; |
| import java.net.InetSocketAddress; |
| import java.nio.ByteBuffer; |
| import java.nio.channels.SocketChannel; |
| import java.util.concurrent.CompletableFuture; |
| |
| /** |
| * A plain text socket tunnel through a proxy. Uses "CONNECT" but does not |
| * encrypt. Used by WebSocket. Subclassed in SSLTunnelConnection for encryption. |
| */ |
| class PlainTunnelingConnection extends HttpConnection { |
| |
| final PlainHttpConnection delegate; |
| protected final InetSocketAddress proxyAddr; |
| private volatile boolean connected; |
| |
| @Override |
| public CompletableFuture<Void> connectAsync() { |
| return delegate.connectAsync() |
| .thenCompose((Void v) -> { |
| HttpRequestImpl req = new HttpRequestImpl("CONNECT", client, address); |
| MultiExchange<Void,Void> mconnectExchange = new MultiExchange<>(req, client, this::ignore); |
| return mconnectExchange.responseAsync() |
| .thenCompose((HttpResponseImpl<Void> resp) -> { |
| CompletableFuture<Void> cf = new MinimalFuture<>(); |
| if (resp.statusCode() != 200) { |
| cf.completeExceptionally(new IOException("Tunnel failed")); |
| } else { |
| connected = true; |
| cf.complete(null); |
| } |
| return cf; |
| }); |
| }); |
| } |
| |
| private HttpResponse.BodyProcessor<Void> ignore(int status, HttpHeaders hdrs) { |
| return HttpResponse.BodyProcessor.discard((Void)null); |
| } |
| |
| @Override |
| public void connect() throws IOException, InterruptedException { |
| delegate.connect(); |
| HttpRequestImpl req = new HttpRequestImpl("CONNECT", client, address); |
| Exchange<?> connectExchange = new Exchange<>(req, null); |
| Response r = connectExchange.responseImpl(delegate); |
| if (r.statusCode() != 200) { |
| throw new IOException("Tunnel failed"); |
| } |
| connected = true; |
| } |
| |
| @Override |
| boolean connected() { |
| return connected; |
| } |
| |
| protected PlainTunnelingConnection(InetSocketAddress addr, |
| InetSocketAddress proxy, |
| HttpClientImpl client) { |
| super(addr, client); |
| this.proxyAddr = proxy; |
| delegate = new PlainHttpConnection(proxy, client); |
| } |
| |
| @Override |
| SocketChannel channel() { |
| return delegate.channel(); |
| } |
| |
| @Override |
| ConnectionPool.CacheKey cacheKey() { |
| return new ConnectionPool.CacheKey(null, proxyAddr); |
| } |
| |
| @Override |
| long write(ByteBuffer[] buffers, int start, int number) throws IOException { |
| return delegate.write(buffers, start, number); |
| } |
| |
| @Override |
| long write(ByteBuffer buffer) throws IOException { |
| return delegate.write(buffer); |
| } |
| |
| @Override |
| void writeAsync(ByteBufferReference[] buffers) throws IOException { |
| delegate.writeAsync(buffers); |
| } |
| |
| @Override |
| void writeAsyncUnordered(ByteBufferReference[] buffers) throws IOException { |
| delegate.writeAsyncUnordered(buffers); |
| } |
| |
| @Override |
| void flushAsync() throws IOException { |
| delegate.flushAsync(); |
| } |
| |
| @Override |
| public void close() { |
| delegate.close(); |
| connected = false; |
| } |
| |
| @Override |
| void shutdownInput() throws IOException { |
| delegate.shutdownInput(); |
| } |
| |
| @Override |
| void shutdownOutput() throws IOException { |
| delegate.shutdownOutput(); |
| } |
| |
| @Override |
| CompletableFuture<Void> whenReceivingResponse() { |
| return delegate.whenReceivingResponse(); |
| } |
| |
| @Override |
| protected ByteBuffer readImpl() throws IOException { |
| return delegate.readImpl(); |
| } |
| |
| @Override |
| protected int readImpl(ByteBuffer buffer) throws IOException { |
| return delegate.readImpl(buffer); |
| } |
| |
| @Override |
| boolean isSecure() { |
| return false; |
| } |
| |
| @Override |
| boolean isProxied() { |
| return true; |
| } |
| } |