netconf/netconf-ssh/src/test/java/org/opendaylight/netconf/netty/SSHTest.java

   1 /*
   2  * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.netconf.netty;
  10
  11 import static org.junit.Assert.assertEquals;
  12 import static org.junit.Assert.assertFalse;
  13 import static org.junit.Assert.assertTrue;
  14
  15 import com.google.common.base.Stopwatch;
  16 import io.netty.bootstrap.Bootstrap;
  17 import io.netty.channel.ChannelInitializer;
  18 import io.netty.channel.EventLoopGroup;
  19 import io.netty.channel.nio.NioEventLoopGroup;
  20 import io.netty.channel.socket.nio.NioSocketChannel;
  21 import io.netty.util.HashedWheelTimer;
  22 import java.io.File;
  23 import java.net.InetSocketAddress;
  24 import java.nio.file.Files;
  25 import java.util.concurrent.ExecutorService;
  26 import java.util.concurrent.Executors;
  27 import java.util.concurrent.ScheduledExecutorService;
  28 import java.util.concurrent.TimeUnit;
  29 import org.apache.sshd.server.keyprovider.PEMGeneratorHostKeyProvider;
  30 import org.junit.AfterClass;
  31 import org.junit.BeforeClass;
  32 import org.junit.Test;
  33 import org.opendaylight.netconf.auth.AuthProvider;
  34 import org.opendaylight.netconf.netty.EchoClientHandler.State;
  35 import org.opendaylight.netconf.nettyutil.handler.ssh.authentication.LoginPassword;
  36 import org.opendaylight.netconf.nettyutil.handler.ssh.client.AsyncSshHandler;
  37 import org.opendaylight.netconf.ssh.SshProxyServer;
  38 import org.opendaylight.netconf.ssh.SshProxyServerConfigurationBuilder;
  39 import org.opendaylight.netconf.util.osgi.NetconfConfiguration;
  40 import org.slf4j.Logger;
  41 import org.slf4j.LoggerFactory;
  42
  43 public class SSHTest {
  44     private static final Logger LOG = LoggerFactory.getLogger(SSHTest.class);
  45     public static final String AHOJ = "ahoj\n";
  46
  47     private static EventLoopGroup nettyGroup;
  48     private static HashedWheelTimer hashedWheelTimer;
  49     private static ExecutorService nioExec;
  50     private static ScheduledExecutorService minaTimerEx;
  51
  52     @BeforeClass
  53     public static void setUp() throws Exception {
  54         hashedWheelTimer = new HashedWheelTimer();
  55         nettyGroup = new NioEventLoopGroup();
  56         nioExec = Executors.newFixedThreadPool(1);
  57         minaTimerEx = Executors.newScheduledThreadPool(1);
  58     }
  59
  60     @AfterClass
  61     public static void tearDown() throws Exception {
  62         hashedWheelTimer.stop();
  63         nettyGroup.shutdownGracefully().await(5, TimeUnit.SECONDS);
  64         minaTimerEx.shutdownNow();
  65         nioExec.shutdownNow();
  66     }
  67
  68     @Test
  69     public void test() throws Exception {
  70         File sshKeyPair = Files.createTempFile("sshKeyPair", ".pem").toFile();
  71         sshKeyPair.deleteOnExit();
  72         new Thread(new EchoServer(), "EchoServer").start();
  73
  74         final InetSocketAddress addr = new InetSocketAddress("127.0.0.1", 10831);
  75         final SshProxyServer sshProxyServer = new SshProxyServer(minaTimerEx, nettyGroup, nioExec);
  76         sshProxyServer.bind(new SshProxyServerConfigurationBuilder()
  77                 .setBindingAddress(addr).setLocalAddress(NetconfConfiguration.NETCONF_LOCAL_ADDRESS)
  78                 .setAuthenticator(new AuthProvider() {
  79                         @Override
  80                         public boolean authenticated(final String username, final String password) {
  81                             return true;
  82                         }
  83                 })
  84                 .setKeyPairProvider(new PEMGeneratorHostKeyProvider(sshKeyPair.toPath().toAbsolutePath().toString()))
  85                 .setIdleTimeout(Integer.MAX_VALUE).createSshProxyServerConfiguration());
  86
  87         final EchoClientHandler echoClientHandler = connectClient(addr);
  88
  89         Stopwatch stopwatch = Stopwatch.createStarted();
  90         while (echoClientHandler.isConnected() == false && stopwatch.elapsed(TimeUnit.SECONDS) < 30) {
  91             Thread.sleep(500);
  92         }
  93         assertTrue(echoClientHandler.isConnected());
  94         LOG.info("connected, writing to client");
  95         echoClientHandler.write(AHOJ);
  96
  97         // check that server sent back the same string
  98         stopwatch = stopwatch.reset().start();
  99         while (echoClientHandler.read().endsWith(AHOJ) == false && stopwatch.elapsed(TimeUnit.SECONDS) < 30) {
 100             Thread.sleep(500);
 101         }
 102
 103         try {
 104             final String read = echoClientHandler.read();
 105             assertTrue(read + " should end with " + AHOJ, read.endsWith(AHOJ));
 106         } finally {
 107             LOG.info("Closing socket");
 108             sshProxyServer.close();
 109         }
 110     }
 111
 112     public EchoClientHandler connectClient(final InetSocketAddress address) {
 113         final EchoClientHandler echoClientHandler = new EchoClientHandler();
 114         final ChannelInitializer<NioSocketChannel> channelInitializer = new ChannelInitializer<NioSocketChannel>() {
 115             @Override
 116             public void initChannel(final NioSocketChannel ch) throws Exception {
 117                 ch.pipeline().addFirst(AsyncSshHandler.createForNetconfSubsystem(new LoginPassword("a", "a")));
 118                 ch.pipeline().addLast(echoClientHandler);
 119             }
 120         };
 121         final Bootstrap b = new Bootstrap();
 122
 123         b.group(nettyGroup)
 124                 .channel(NioSocketChannel.class)
 125                 .handler(channelInitializer);
 126
 127         // Start the client.
 128         b.connect(address).addListener(echoClientHandler);
 129         return echoClientHandler;
 130     }
 131
 132     @Test
 133     public void testClientWithoutServer() throws Exception {
 134         final InetSocketAddress address = new InetSocketAddress(12345);
 135         final EchoClientHandler echoClientHandler = connectClient(address);
 136         final Stopwatch stopwatch = Stopwatch.createStarted();
 137         while (echoClientHandler.getState() == State.CONNECTING && stopwatch.elapsed(TimeUnit.SECONDS) < 5) {
 138             Thread.sleep(100);
 139         }
 140         assertFalse(echoClientHandler.isConnected());
 141         assertEquals(State.FAILED_TO_CONNECT, echoClientHandler.getState());
 142     }
 143
 144 }