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Java example source code file (SocketSslGreetingTest.java)

This example Java source code file (SocketSslGreetingTest.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

arraylist, atomicreference, channel, clienthandler, exception, ioexception, key_file, logginghandler, net, override, serverhandler, ssl, sslcontext, sslhandshakecompletionevent, sslpeerunverifiedexception, threading, threads, throwable, util

The SocketSslGreetingTest.java Java example source code

/*
* Copyright 2014 The Netty Project
*
* The Netty Project licenses this file to you under the Apache License,
* version 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at:
*
*   http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
package io.netty.testsuite.transport.socket;

import io.netty.bootstrap.Bootstrap;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.Channel;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.handler.logging.LogLevel;
import io.netty.handler.logging.LoggingHandler;
import io.netty.handler.ssl.OpenSsl;
import io.netty.handler.ssl.SslContext;
import io.netty.handler.ssl.SslContextBuilder;
import io.netty.handler.ssl.SslHandler;
import io.netty.handler.ssl.SslHandshakeCompletionEvent;
import io.netty.handler.ssl.SslProvider;
import io.netty.handler.ssl.util.SelfSignedCertificate;
import io.netty.util.ReferenceCountUtil;
import io.netty.util.internal.logging.InternalLogger;
import io.netty.util.internal.logging.InternalLoggerFactory;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;

import javax.net.ssl.SSLPeerUnverifiedException;
import javax.net.ssl.SSLSession;
import java.io.File;
import java.io.IOException;
import java.security.cert.CertificateException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.atomic.AtomicReference;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;

@RunWith(Parameterized.class)
public class SocketSslGreetingTest extends AbstractSocketTest {

    private static final InternalLogger logger = InternalLoggerFactory.getInstance(SocketSslGreetingTest.class);

    private static final LogLevel LOG_LEVEL = LogLevel.TRACE;
    private static final File CERT_FILE;
    private static final File KEY_FILE;
    private final ByteBuf greeting = ReferenceCountUtil.releaseLater(Unpooled.buffer().writeByte('a'));

    static {
        SelfSignedCertificate ssc;
        try {
            ssc = new SelfSignedCertificate();
        } catch (CertificateException e) {
            throw new Error(e);
        }
        CERT_FILE = ssc.certificate();
        KEY_FILE = ssc.privateKey();
    }

    @Parameters(name = "{index}: serverEngine = {0}, clientEngine = {1}")
    public static Collection<Object[]> data() throws Exception {
        List<SslContext> serverContexts = new ArrayList();
        serverContexts.add(SslContextBuilder.forServer(CERT_FILE, KEY_FILE).sslProvider(SslProvider.JDK).build());

        List<SslContext> clientContexts = new ArrayList();
        clientContexts.add(SslContextBuilder.forClient().sslProvider(SslProvider.JDK).trustManager(CERT_FILE).build());

        boolean hasOpenSsl = OpenSsl.isAvailable();
        if (hasOpenSsl) {
            serverContexts.add(SslContextBuilder.forServer(CERT_FILE, KEY_FILE)
                                                .sslProvider(SslProvider.OPENSSL).build());
            clientContexts.add(SslContextBuilder.forClient().sslProvider(SslProvider.OPENSSL)
                                                .trustManager(CERT_FILE).build());
        } else {
            logger.warn("OpenSSL is unavailable and thus will not be tested.", OpenSsl.unavailabilityCause());
        }

        List<Object[]> params = new ArrayList();
        for (SslContext sc: serverContexts) {
            for (SslContext cc: clientContexts) {
                params.add(new Object[] { sc, cc });
            }
        }
        return params;
    }

    private final SslContext serverCtx;
    private final SslContext clientCtx;

    public SocketSslGreetingTest(SslContext serverCtx, SslContext clientCtx) {
        this.serverCtx = serverCtx;
        this.clientCtx = clientCtx;
    }

    // Test for https://github.com/netty/netty/pull/2437
    @Test(timeout = 30000)
    public void testSslGreeting() throws Throwable {
        run();
    }

    public void testSslGreeting(ServerBootstrap sb, Bootstrap cb) throws Throwable {
        final ServerHandler sh = new ServerHandler();
        final ClientHandler ch = new ClientHandler();

        sb.childHandler(new ChannelInitializer<Channel>() {
            @Override
            public void initChannel(Channel sch) throws Exception {
                ChannelPipeline p = sch.pipeline();
                p.addLast(serverCtx.newHandler(sch.alloc()));
                p.addLast(new LoggingHandler(LOG_LEVEL));
                p.addLast(sh);
            }
        });

        cb.handler(new ChannelInitializer<Channel>() {
            @Override
            public void initChannel(Channel sch) throws Exception {
                ChannelPipeline p = sch.pipeline();
                p.addLast(clientCtx.newHandler(sch.alloc()));
                p.addLast(new LoggingHandler(LOG_LEVEL));
                p.addLast(ch);
            }
        });

        Channel sc = sb.bind().sync().channel();
        Channel cc = cb.connect().sync().channel();

        ch.latch.await();

        sh.channel.close().awaitUninterruptibly();
        cc.close().awaitUninterruptibly();
        sc.close().awaitUninterruptibly();

        if (sh.exception.get() != null && !(sh.exception.get() instanceof IOException)) {
            throw sh.exception.get();
        }
        if (ch.exception.get() != null && !(ch.exception.get() instanceof IOException)) {
            throw ch.exception.get();
        }
        if (sh.exception.get() != null) {
            throw sh.exception.get();
        }
        if (ch.exception.get() != null) {
            throw ch.exception.get();
        }
    }

    private class ClientHandler extends SimpleChannelInboundHandler<ByteBuf> {

        final AtomicReference<Throwable> exception = new AtomicReference();
        final CountDownLatch latch = new CountDownLatch(1);

        @Override
        public void channelRead0(ChannelHandlerContext ctx, ByteBuf buf) throws Exception {
            assertEquals(greeting, buf);
            latch.countDown();
            ctx.close();
        }

        @Override
        public void exceptionCaught(ChannelHandlerContext ctx,
                                    Throwable cause) throws Exception {
            if (logger.isWarnEnabled()) {
                logger.warn("Unexpected exception from the client side", cause);
            }

            exception.compareAndSet(null, cause);
            ctx.close();
        }
    }

    private class ServerHandler extends SimpleChannelInboundHandler<String> {
        volatile Channel channel;
        final AtomicReference<Throwable> exception = new AtomicReference();

        @Override
        protected void channelRead0(ChannelHandlerContext ctx, String msg) throws Exception {
            // discard
        }

        @Override
        public void channelActive(ChannelHandlerContext ctx)
                throws Exception {
            channel = ctx.channel();
            channel.writeAndFlush(greeting.retainedDuplicate());
        }

        @Override
        public void exceptionCaught(ChannelHandlerContext ctx,
                                    Throwable cause) throws Exception {
            if (logger.isWarnEnabled()) {
                logger.warn("Unexpected exception from the server side", cause);
            }

            exception.compareAndSet(null, cause);
            ctx.close();
        }

        @Override
        public void userEventTriggered(final ChannelHandlerContext ctx, final Object evt) throws Exception {
            if (evt instanceof SslHandshakeCompletionEvent) {
                final SslHandshakeCompletionEvent event = (SslHandshakeCompletionEvent) evt;
                if (event.isSuccess()) {
                    SSLSession session = ctx.pipeline().get(SslHandler.class).engine().getSession();
                    try {
                        session.getPeerCertificates();
                        fail();
                    } catch (SSLPeerUnverifiedException e) {
                        // expected
                    }
                    try {
                        session.getPeerCertificateChain();
                        fail();
                    } catch (SSLPeerUnverifiedException e) {
                        // expected
                    }
                    try {
                        session.getPeerPrincipal();
                        fail();
                    } catch (SSLPeerUnverifiedException e) {
                        // expected
                    }
                }
            }
            ctx.fireUserEventTriggered(evt);
        }
    }
}

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