48083
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/*
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* Copyright (c) 2017, 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.
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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 jdk.incubator.http;
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import java.io.BufferedOutputStream;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.net.Socket;
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import java.nio.ByteBuffer;
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import java.security.KeyManagementException;
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import java.security.KeyStore;
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import java.security.KeyStoreException;
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import java.security.NoSuchAlgorithmException;
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import java.security.UnrecoverableKeyException;
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import java.security.cert.CertificateException;
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import java.util.List;
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import java.util.Random;
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import java.util.StringTokenizer;
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import java.util.concurrent.BlockingQueue;
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import java.util.concurrent.CompletableFuture;
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import java.util.concurrent.CountDownLatch;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.Executors;
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import java.util.concurrent.Flow;
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import java.util.concurrent.Flow.Subscriber;
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import java.util.concurrent.LinkedBlockingQueue;
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import java.util.concurrent.SubmissionPublisher;
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import java.util.concurrent.atomic.AtomicInteger;
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import java.util.concurrent.atomic.AtomicLong;
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import javax.net.ssl.KeyManagerFactory;
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import javax.net.ssl.*;
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import javax.net.ssl.TrustManagerFactory;
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import jdk.incubator.http.internal.common.Utils;
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import org.testng.annotations.Test;
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import jdk.incubator.http.internal.common.SSLFlowDelegate;
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@Test
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public class FlowTest extends AbstractRandomTest {
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private final SubmissionPublisher<List<ByteBuffer>> srcPublisher;
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private final ExecutorService executor;
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private static final long COUNTER = 3000;
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private static final int LONGS_PER_BUF = 800;
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static final long TOTAL_LONGS = COUNTER * LONGS_PER_BUF;
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public static final ByteBuffer SENTINEL = ByteBuffer.allocate(0);
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static volatile String alpn;
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// This is a hack to work around an issue with SubmissionPublisher.
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// SubmissionPublisher will call onComplete immediately without forwarding
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// remaining pending data if SubmissionPublisher.close() is called when
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// there is no demand. In other words, it doesn't wait for the subscriber
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// to pull all the data before calling onComplete.
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// We use a CountDownLatch to figure out when it is safe to call close().
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// This may cause the test to hang if data are buffered.
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final CountDownLatch allBytesReceived = new CountDownLatch(1);
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private final CompletableFuture<Void> completion;
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public FlowTest() throws IOException {
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executor = Executors.newCachedThreadPool();
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srcPublisher = new SubmissionPublisher<>(executor, 20,
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this::handlePublisherException);
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SSLContext ctx = (new SimpleSSLContext()).get();
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SSLEngine engineClient = ctx.createSSLEngine();
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SSLParameters params = ctx.getSupportedSSLParameters();
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params.setApplicationProtocols(new String[]{"proto1", "proto2"}); // server will choose proto2
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params.setProtocols(new String[]{"TLSv1.2"}); // TODO: This is essential. Needs to be protocol impl
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engineClient.setSSLParameters(params);
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engineClient.setUseClientMode(true);
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completion = new CompletableFuture<>();
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SSLLoopbackSubscriber looper = new SSLLoopbackSubscriber(ctx, executor, allBytesReceived);
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looper.start();
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EndSubscriber end = new EndSubscriber(TOTAL_LONGS, completion, allBytesReceived);
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SSLFlowDelegate sslClient = new SSLFlowDelegate(engineClient, executor, end, looper);
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// going to measure how long handshake takes
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final long start = System.currentTimeMillis();
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sslClient.alpn().whenComplete((String s, Throwable t) -> {
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if (t != null)
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t.printStackTrace();
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long endTime = System.currentTimeMillis();
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alpn = s;
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System.out.println("ALPN: " + alpn);
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long period = (endTime - start);
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System.out.printf("Handshake took %d ms\n", period);
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});
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Subscriber<List<ByteBuffer>> reader = sslClient.upstreamReader();
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Subscriber<List<ByteBuffer>> writer = sslClient.upstreamWriter();
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looper.setReturnSubscriber(reader);
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// now connect all the pieces
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srcPublisher.subscribe(writer);
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String aa = sslClient.alpn().join();
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System.out.println("AAALPN = " + aa);
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}
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private void handlePublisherException(Object o, Throwable t) {
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System.out.println("Src Publisher exception");
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t.printStackTrace(System.out);
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}
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private static ByteBuffer getBuffer(long startingAt) {
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ByteBuffer buf = ByteBuffer.allocate(LONGS_PER_BUF * 8);
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for (int j = 0; j < LONGS_PER_BUF; j++) {
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buf.putLong(startingAt++);
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}
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buf.flip();
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return buf;
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}
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@Test
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public void run() {
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long count = 0;
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System.out.printf("Submitting %d buffer arrays\n", COUNTER);
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System.out.printf("LoopCount should be %d\n", TOTAL_LONGS);
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for (long i = 0; i < COUNTER; i++) {
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ByteBuffer b = getBuffer(count);
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count += LONGS_PER_BUF;
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srcPublisher.submit(List.of(b));
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}
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System.out.println("Finished submission. Waiting for loopback");
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// make sure we don't wait for allBytesReceived in case of error.
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completion.whenComplete((r,t) -> allBytesReceived.countDown());
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try {
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allBytesReceived.await();
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} catch (InterruptedException e) {
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throw new RuntimeException(e);
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}
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System.out.println("All bytes received: ");
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srcPublisher.close();
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try {
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completion.join();
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if (!alpn.equals("proto2")) {
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throw new RuntimeException("wrong alpn received");
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}
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System.out.println("OK");
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} finally {
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executor.shutdownNow();
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}
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}
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/*
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public static void main(String[]args) throws Exception {
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FlowTest test = new FlowTest();
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test.run();
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}
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*/
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/**
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* This Subscriber simulates an SSL loopback network. The object itself
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* accepts outgoing SSL encrypted data which is looped back via two sockets
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* (one of which is an SSLSocket emulating a server). The method
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* {@link #setReturnSubscriber(java.util.concurrent.Flow.Subscriber) }
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* is used to provide the Subscriber which feeds the incoming side
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* of SSLFlowDelegate. Three threads are used to implement this behavior
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* and a SubmissionPublisher drives the incoming read side.
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* <p>
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* A thread reads from the buffer, writes
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* to the client j.n.Socket which is connected to a SSLSocket operating
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* in server mode. A second thread loops back data read from the SSLSocket back to the
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* client again. A third thread reads the client socket and pushes the data to
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* a SubmissionPublisher that drives the reader side of the SSLFlowDelegate
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*/
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static class SSLLoopbackSubscriber implements Subscriber<List<ByteBuffer>> {
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private final BlockingQueue<ByteBuffer> buffer;
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private final Socket clientSock;
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private final SSLSocket serverSock;
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private final Thread thread1, thread2, thread3;
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private volatile Flow.Subscription clientSubscription;
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private final SubmissionPublisher<List<ByteBuffer>> publisher;
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private final CountDownLatch allBytesReceived;
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SSLLoopbackSubscriber(SSLContext ctx,
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ExecutorService exec,
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CountDownLatch allBytesReceived) throws IOException {
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SSLServerSocketFactory fac = ctx.getServerSocketFactory();
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SSLServerSocket serv = (SSLServerSocket) fac.createServerSocket(0);
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SSLParameters params = serv.getSSLParameters();
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params.setApplicationProtocols(new String[]{"proto2"});
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serv.setSSLParameters(params);
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int serverPort = serv.getLocalPort();
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clientSock = new Socket("127.0.0.1", serverPort);
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serverSock = (SSLSocket) serv.accept();
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this.buffer = new LinkedBlockingQueue<>();
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this.allBytesReceived = allBytesReceived;
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thread1 = new Thread(this::clientWriter, "clientWriter");
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thread2 = new Thread(this::serverLoopback, "serverLoopback");
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thread3 = new Thread(this::clientReader, "clientReader");
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publisher = new SubmissionPublisher<>(exec, Flow.defaultBufferSize(),
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this::handlePublisherException);
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SSLFlowDelegate.Monitor.add(this::monitor);
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}
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public void start() {
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thread1.start();
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thread2.start();
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thread3.start();
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}
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private void handlePublisherException(Object o, Throwable t) {
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System.out.println("Loopback Publisher exception");
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t.printStackTrace(System.out);
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}
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private final AtomicInteger readCount = new AtomicInteger();
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// reads off the SSLSocket the data from the "server"
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private void clientReader() {
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try {
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InputStream is = clientSock.getInputStream();
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final int bufsize = FlowTest.randomRange(512, 16 * 1024);
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System.out.println("clientReader: bufsize = " + bufsize);
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while (true) {
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byte[] buf = new byte[bufsize];
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int n = is.read(buf);
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if (n == -1) {
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System.out.println("clientReader close: read "
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+ readCount.get() + " bytes");
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System.out.println("clientReader: got EOF. "
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+ "Waiting signal to close publisher.");
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allBytesReceived.await();
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System.out.println("clientReader: closing publisher");
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publisher.close();
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sleep(2000);
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Utils.close(is, clientSock);
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return;
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}
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ByteBuffer bb = ByteBuffer.wrap(buf, 0, n);
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readCount.addAndGet(n);
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publisher.submit(List.of(bb));
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}
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} catch (Throwable e) {
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e.printStackTrace();
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Utils.close(clientSock);
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}
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}
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// writes the encrypted data from SSLFLowDelegate to the j.n.Socket
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// which is connected to the SSLSocket emulating a server.
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private void clientWriter() {
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long nbytes = 0;
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try {
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OutputStream os =
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new BufferedOutputStream(clientSock.getOutputStream());
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while (true) {
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ByteBuffer buf = buffer.take();
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if (buf == FlowTest.SENTINEL) {
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// finished
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//Utils.sleep(2000);
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System.out.println("clientWriter close: " + nbytes + " written");
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clientSock.shutdownOutput();
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System.out.println("clientWriter close return");
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return;
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}
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int len = buf.remaining();
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int written = writeToStream(os, buf);
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assert len == written;
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nbytes += len;
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assert !buf.hasRemaining()
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: "buffer has " + buf.remaining() + " bytes left";
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clientSubscription.request(1);
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}
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} catch (Throwable e) {
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e.printStackTrace();
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}
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}
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private int writeToStream(OutputStream os, ByteBuffer buf) throws IOException {
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byte[] b = buf.array();
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int offset = buf.arrayOffset() + buf.position();
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int n = buf.limit() - buf.position();
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os.write(b, offset, n);
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buf.position(buf.limit());
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os.flush();
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return n;
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}
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private final AtomicInteger loopCount = new AtomicInteger();
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public String monitor() {
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return "serverLoopback: loopcount = " + loopCount.toString()
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+ " clientRead: count = " + readCount.toString();
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}
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// thread2
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private void serverLoopback() {
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try {
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InputStream is = serverSock.getInputStream();
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OutputStream os = serverSock.getOutputStream();
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final int bufsize = FlowTest.randomRange(512, 16 * 1024);
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System.out.println("serverLoopback: bufsize = " + bufsize);
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byte[] bb = new byte[bufsize];
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while (true) {
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int n = is.read(bb);
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if (n == -1) {
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sleep(2000);
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is.close();
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serverSock.close();
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return;
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}
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os.write(bb, 0, n);
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os.flush();
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loopCount.addAndGet(n);
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}
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} catch (Throwable e) {
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e.printStackTrace();
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}
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}
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/**
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* This needs to be called before the chain is subscribed. It can't be
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* supplied in the constructor.
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*/
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public void setReturnSubscriber(Subscriber<List<ByteBuffer>> returnSubscriber) {
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publisher.subscribe(returnSubscriber);
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}
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@Override
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public void onSubscribe(Flow.Subscription subscription) {
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clientSubscription = subscription;
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clientSubscription.request(5);
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}
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@Override
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public void onNext(List<ByteBuffer> item) {
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try {
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for (ByteBuffer b : item)
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buffer.put(b);
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} catch (InterruptedException e) {
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e.printStackTrace();
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Utils.close(clientSock);
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}
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}
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@Override
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public void onError(Throwable throwable) {
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throwable.printStackTrace();
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Utils.close(clientSock);
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}
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@Override
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public void onComplete() {
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try {
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buffer.put(FlowTest.SENTINEL);
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} catch (InterruptedException e) {
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e.printStackTrace();
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Utils.close(clientSock);
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}
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}
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}
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/**
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* The final subscriber which receives the decrypted looped-back data.
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* Just needs to compare the data with what was sent. The given CF is
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* either completed exceptionally with an error or normally on success.
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*/
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static class EndSubscriber implements Subscriber<List<ByteBuffer>> {
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private final long nbytes;
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private final AtomicLong counter;
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private volatile Flow.Subscription subscription;
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private final CompletableFuture<Void> completion;
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private final CountDownLatch allBytesReceived;
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EndSubscriber(long nbytes,
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CompletableFuture<Void> completion,
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CountDownLatch allBytesReceived) {
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counter = new AtomicLong(0);
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this.nbytes = nbytes;
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this.completion = completion;
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this.allBytesReceived = allBytesReceived;
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}
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@Override
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public void onSubscribe(Flow.Subscription subscription) {
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this.subscription = subscription;
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subscription.request(5);
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}
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public static String info(List<ByteBuffer> i) {
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408 |
StringBuilder sb = new StringBuilder();
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sb.append("size: ").append(Integer.toString(i.size()));
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410 |
int x = 0;
|
|
411 |
for (ByteBuffer b : i)
|
|
412 |
x += b.remaining();
|
|
413 |
sb.append(" bytes: " + Integer.toString(x));
|
|
414 |
return sb.toString();
|
|
415 |
}
|
|
416 |
|
|
417 |
@Override
|
|
418 |
public void onNext(List<ByteBuffer> buffers) {
|
|
419 |
long currval = counter.get();
|
|
420 |
//if (currval % 500 == 0) {
|
|
421 |
//System.out.println("End: " + currval);
|
|
422 |
//}
|
|
423 |
|
|
424 |
for (ByteBuffer buf : buffers) {
|
|
425 |
while (buf.hasRemaining()) {
|
|
426 |
long n = buf.getLong();
|
|
427 |
//if (currval > (FlowTest.TOTAL_LONGS - 50)) {
|
|
428 |
//System.out.println("End: " + currval);
|
|
429 |
//}
|
|
430 |
if (n != currval++) {
|
|
431 |
System.out.println("ERROR at " + n + " != " + (currval - 1));
|
|
432 |
completion.completeExceptionally(new RuntimeException("ERROR"));
|
|
433 |
subscription.cancel();
|
|
434 |
return;
|
|
435 |
}
|
|
436 |
}
|
|
437 |
}
|
|
438 |
|
|
439 |
counter.set(currval);
|
|
440 |
subscription.request(1);
|
|
441 |
if (currval >= TOTAL_LONGS) {
|
|
442 |
allBytesReceived.countDown();
|
|
443 |
}
|
|
444 |
}
|
|
445 |
|
|
446 |
@Override
|
|
447 |
public void onError(Throwable throwable) {
|
|
448 |
allBytesReceived.countDown();
|
|
449 |
completion.completeExceptionally(throwable);
|
|
450 |
}
|
|
451 |
|
|
452 |
@Override
|
|
453 |
public void onComplete() {
|
|
454 |
long n = counter.get();
|
|
455 |
if (n != nbytes) {
|
|
456 |
System.out.printf("nbytes=%d n=%d\n", nbytes, n);
|
|
457 |
completion.completeExceptionally(new RuntimeException("ERROR AT END"));
|
|
458 |
} else {
|
|
459 |
System.out.println("DONE OK: counter = " + n);
|
|
460 |
allBytesReceived.countDown();
|
|
461 |
completion.complete(null);
|
|
462 |
}
|
|
463 |
}
|
|
464 |
}
|
|
465 |
|
|
466 |
/**
|
|
467 |
* Creates a simple usable SSLContext for SSLSocketFactory
|
|
468 |
* or a HttpsServer using either a given keystore or a default
|
|
469 |
* one in the test tree.
|
|
470 |
* <p>
|
|
471 |
* Using this class with a security manager requires the following
|
|
472 |
* permissions to be granted:
|
|
473 |
* <p>
|
|
474 |
* permission "java.util.PropertyPermission" "test.src.path", "read";
|
|
475 |
* permission java.io.FilePermission
|
|
476 |
* "${test.src}/../../../../lib/testlibrary/jdk/testlibrary/testkeys", "read";
|
|
477 |
* The exact path above depends on the location of the test.
|
|
478 |
*/
|
|
479 |
static class SimpleSSLContext {
|
|
480 |
|
|
481 |
private final SSLContext ssl;
|
|
482 |
|
|
483 |
/**
|
|
484 |
* Loads default keystore from SimpleSSLContext source directory
|
|
485 |
*/
|
|
486 |
public SimpleSSLContext() throws IOException {
|
|
487 |
String paths = System.getProperty("test.src.path");
|
|
488 |
StringTokenizer st = new StringTokenizer(paths, File.pathSeparator);
|
|
489 |
boolean securityExceptions = false;
|
|
490 |
SSLContext sslContext = null;
|
|
491 |
while (st.hasMoreTokens()) {
|
|
492 |
String path = st.nextToken();
|
|
493 |
try {
|
|
494 |
File f = new File(path, "../../../../lib/testlibrary/jdk/testlibrary/testkeys");
|
|
495 |
if (f.exists()) {
|
|
496 |
try (FileInputStream fis = new FileInputStream(f)) {
|
|
497 |
sslContext = init(fis);
|
|
498 |
break;
|
|
499 |
}
|
|
500 |
}
|
|
501 |
} catch (SecurityException e) {
|
|
502 |
// catch and ignore because permission only required
|
|
503 |
// for one entry on path (at most)
|
|
504 |
securityExceptions = true;
|
|
505 |
}
|
|
506 |
}
|
|
507 |
if (securityExceptions) {
|
|
508 |
System.out.println("SecurityExceptions thrown on loading testkeys");
|
|
509 |
}
|
|
510 |
ssl = sslContext;
|
|
511 |
}
|
|
512 |
|
|
513 |
private SSLContext init(InputStream i) throws IOException {
|
|
514 |
try {
|
|
515 |
char[] passphrase = "passphrase".toCharArray();
|
|
516 |
KeyStore ks = KeyStore.getInstance("JKS");
|
|
517 |
ks.load(i, passphrase);
|
|
518 |
|
|
519 |
KeyManagerFactory kmf = KeyManagerFactory.getInstance("SunX509");
|
|
520 |
kmf.init(ks, passphrase);
|
|
521 |
|
|
522 |
TrustManagerFactory tmf = TrustManagerFactory.getInstance("SunX509");
|
|
523 |
tmf.init(ks);
|
|
524 |
|
|
525 |
SSLContext ssl = SSLContext.getInstance("TLS");
|
|
526 |
ssl.init(kmf.getKeyManagers(), tmf.getTrustManagers(), null);
|
|
527 |
return ssl;
|
|
528 |
} catch (KeyManagementException | KeyStoreException |
|
|
529 |
UnrecoverableKeyException | CertificateException |
|
|
530 |
NoSuchAlgorithmException e) {
|
|
531 |
throw new RuntimeException(e.getMessage());
|
|
532 |
}
|
|
533 |
}
|
|
534 |
|
|
535 |
public SSLContext get() {
|
|
536 |
return ssl;
|
|
537 |
}
|
|
538 |
}
|
|
539 |
|
|
540 |
private static void sleep(int millis) {
|
|
541 |
try {
|
|
542 |
Thread.sleep(millis);
|
|
543 |
} catch (Exception e) {
|
|
544 |
e.printStackTrace();
|
|
545 |
}
|
|
546 |
}
|
|
547 |
}
|