author | chegar |
Wed, 07 Feb 2018 14:17:24 +0000 | |
branch | http-client-branch |
changeset 56089 | 42208b2f224e |
parent 56082 | src/jdk.incubator.httpclient/share/classes/jdk/incubator/http/internal/PlainTunnelingConnection.java@1da51fab3032 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package java.net.http.internal; |
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import java.io.IOException; |
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import java.lang.System.Logger.Level; |
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import java.net.InetSocketAddress; |
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import java.nio.ByteBuffer; |
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import java.nio.channels.SocketChannel; |
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import java.util.concurrent.CompletableFuture; |
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import java.util.function.Function; |
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import java.net.http.HttpHeaders; |
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import java.net.http.internal.common.FlowTube; |
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import java.net.http.internal.common.MinimalFuture; |
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import static java.net.http.HttpResponse.BodyHandler.discard; |
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/** |
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* A plain text socket tunnel through a proxy. Uses "CONNECT" but does not |
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* encrypt. Used by WebSocket, as well as HTTP over SSL + Proxy. |
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* Wrapped in SSLTunnelConnection or AsyncSSLTunnelConnection for encryption. |
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*/ |
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final class PlainTunnelingConnection extends HttpConnection { |
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final PlainHttpConnection delegate; |
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final HttpHeaders proxyHeaders; |
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final InetSocketAddress proxyAddr; |
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private volatile boolean connected; |
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protected PlainTunnelingConnection(InetSocketAddress addr, |
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InetSocketAddress proxy, |
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HttpClientImpl client, |
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HttpHeaders proxyHeaders) { |
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super(addr, client); |
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this.proxyAddr = proxy; |
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this.proxyHeaders = proxyHeaders; |
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delegate = new PlainHttpConnection(proxy, client); |
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} |
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@Override |
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public CompletableFuture<Void> connectAsync() { |
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debug.log(Level.DEBUG, "Connecting plain connection"); |
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return delegate.connectAsync() |
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.thenCompose((Void v) -> { |
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debug.log(Level.DEBUG, "sending HTTP/1.1 CONNECT"); |
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HttpClientImpl client = client(); |
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assert client != null; |
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HttpRequestImpl req = new HttpRequestImpl("CONNECT", address, proxyHeaders); |
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MultiExchange<Void> mulEx = new MultiExchange<>(null, req, |
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client, discard(), null, null); |
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Exchange<Void> connectExchange = new Exchange<>(req, mulEx); |
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return connectExchange |
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.responseAsyncImpl(delegate) |
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.thenCompose((Response resp) -> { |
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CompletableFuture<Void> cf = new MinimalFuture<>(); |
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debug.log(Level.DEBUG, "got response: %d", resp.statusCode()); |
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if (resp.statusCode() == 407) { |
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return connectExchange.ignoreBody().handle((r,t) -> { |
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// close delegate after reading body: we won't |
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// be reusing that connection anyway. |
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delegate.close(); |
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ProxyAuthenticationRequired authenticationRequired = |
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new ProxyAuthenticationRequired(resp); |
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cf.completeExceptionally(authenticationRequired); |
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return cf; |
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}).thenCompose(Function.identity()); |
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} else if (resp.statusCode() != 200) { |
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delegate.close(); |
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cf.completeExceptionally(new IOException( |
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"Tunnel failed, got: "+ resp.statusCode())); |
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} else { |
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// get the initial/remaining bytes |
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ByteBuffer b = ((Http1Exchange<?>)connectExchange.exchImpl).drainLeftOverBytes(); |
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int remaining = b.remaining(); |
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assert remaining == 0: "Unexpected remaining: " + remaining; |
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connected = true; |
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cf.complete(null); |
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} |
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return cf; |
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}); |
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}); |
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} |
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@Override |
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boolean isTunnel() { return true; } |
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@Override |
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HttpPublisher publisher() { return delegate.publisher(); } |
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@Override |
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boolean connected() { |
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return connected; |
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} |
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@Override |
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SocketChannel channel() { |
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return delegate.channel(); |
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} |
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@Override |
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FlowTube getConnectionFlow() { |
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return delegate.getConnectionFlow(); |
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} |
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@Override |
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ConnectionPool.CacheKey cacheKey() { |
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return new ConnectionPool.CacheKey(null, proxyAddr); |
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} |
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@Override |
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public void close() { |
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delegate.close(); |
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connected = false; |
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} |
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@Override |
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void shutdownInput() throws IOException { |
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delegate.shutdownInput(); |
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} |
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@Override |
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void shutdownOutput() throws IOException { |
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delegate.shutdownOutput(); |
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} |
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@Override |
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boolean isSecure() { |
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return false; |
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} |
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@Override |
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boolean isProxied() { |
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return true; |
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} |
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// Support for WebSocket/RawChannelImpl which unfortunately |
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// still depends on synchronous read/writes. |
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// It should be removed when RawChannelImpl moves to using asynchronous APIs. |
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@Override |
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DetachedConnectionChannel detachChannel() { |
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return delegate.detachChannel(); |
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} |
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} |