netconf/mdsal-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 package org.opendaylight.netconf.netty;
   9
  10 import static org.junit.Assert.assertEquals;
  11 import static org.junit.Assert.assertFalse;
  12 import static org.junit.Assert.assertTrue;
  13
  14 import com.google.common.base.Stopwatch;
  15 import io.netty.bootstrap.Bootstrap;
  16 import io.netty.channel.ChannelInitializer;
  17 import io.netty.channel.EventLoopGroup;
  18 import io.netty.channel.nio.NioEventLoopGroup;
  19 import io.netty.channel.socket.nio.NioSocketChannel;
  20 import io.netty.util.HashedWheelTimer;
  21 import java.io.File;
  22 import java.net.InetSocketAddress;
  23 import java.nio.file.Files;
  24 import java.util.concurrent.ExecutorService;
  25 import java.util.concurrent.Executors;
  26 import java.util.concurrent.ScheduledExecutorService;
  27 import java.util.concurrent.TimeUnit;
  28 import org.junit.AfterClass;
  29 import org.junit.BeforeClass;
  30 import org.junit.Test;
  31 import org.opendaylight.netconf.netty.EchoClientHandler.State;
  32 import org.opendaylight.netconf.nettyutil.handler.ssh.authentication.LoginPasswordHandler;
  33 import org.opendaylight.netconf.nettyutil.handler.ssh.client.AsyncSshHandler;
  34 import org.opendaylight.netconf.shaded.sshd.common.util.security.SecurityUtils;
  35 import org.opendaylight.netconf.ssh.SshProxyServer;
  36 import org.opendaylight.netconf.ssh.SshProxyServerConfigurationBuilder;
  37 import org.opendaylight.netconf.util.NetconfConfiguration;
  38
  39 public class SSHTest {
  40     public static final String AHOJ = "ahoj\n";
  41
  42     private static EventLoopGroup nettyGroup;
  43     private static HashedWheelTimer hashedWheelTimer;
  44     private static ExecutorService nioExec;
  45     private static ScheduledExecutorService minaTimerEx;
  46
  47     @BeforeClass
  48     public static void setUp() throws Exception {
  49         hashedWheelTimer = new HashedWheelTimer();
  50         nettyGroup = new NioEventLoopGroup();
  51         nioExec = Executors.newFixedThreadPool(1);
  52         minaTimerEx = Executors.newScheduledThreadPool(1);
  53     }
  54
  55     @AfterClass
  56     public static void tearDown() throws Exception {
  57         hashedWheelTimer.stop();
  58         nettyGroup.shutdownGracefully().await(5, TimeUnit.SECONDS);
  59         minaTimerEx.shutdownNow();
  60         nioExec.shutdownNow();
  61     }
  62
  63     @Test
  64     public void test() throws Exception {
  65         File sshKeyPair = Files.createTempFile("sshKeyPair", ".pem").toFile();
  66         sshKeyPair.deleteOnExit();
  67         new Thread(new EchoServer(), "EchoServer").start();
  68
  69         final InetSocketAddress addr = new InetSocketAddress("127.0.0.1", 10831);
  70         try (var sshProxyServer = new SshProxyServer(minaTimerEx, nettyGroup, nioExec)) {
  71             sshProxyServer.bind(new SshProxyServerConfigurationBuilder()
  72                 .setBindingAddress(addr).setLocalAddress(NetconfConfiguration.NETCONF_LOCAL_ADDRESS)
  73                 .setAuthenticator((username, password) -> true)
  74                 .setKeyPairProvider(SecurityUtils.createGeneratorHostKeyProvider(sshKeyPair.toPath()))
  75                 .setIdleTimeout(Integer.MAX_VALUE).createSshProxyServerConfiguration());
  76
  77             final EchoClientHandler echoClientHandler = connectClient(addr);
  78
  79             Stopwatch stopwatch = Stopwatch.createStarted();
  80             while (echoClientHandler.isConnected() == false && stopwatch.elapsed(TimeUnit.SECONDS) < 30) {
  81                 Thread.sleep(500);
  82             }
  83             assertTrue(echoClientHandler.isConnected());
  84             echoClientHandler.write(AHOJ);
  85
  86             // check that server sent back the same string
  87             stopwatch = stopwatch.reset().start();
  88             while (echoClientHandler.read().endsWith(AHOJ) == false && stopwatch.elapsed(TimeUnit.SECONDS) < 30) {
  89                 Thread.sleep(500);
  90             }
  91
  92             final String read = echoClientHandler.read();
  93             assertTrue(read + " should end with " + AHOJ, read.endsWith(AHOJ));
  94         }
  95     }
  96
  97     public EchoClientHandler connectClient(final InetSocketAddress address) {
  98         final EchoClientHandler echoClientHandler = new EchoClientHandler();
  99         final ChannelInitializer<NioSocketChannel> channelInitializer = new ChannelInitializer<>() {
 100             @Override
 101             public void initChannel(final NioSocketChannel ch) throws Exception {
 102                 ch.pipeline().addFirst(AsyncSshHandler.createForNetconfSubsystem(new LoginPasswordHandler("a", "a")));
 103                 ch.pipeline().addLast(echoClientHandler);
 104             }
 105         };
 106         final Bootstrap b = new Bootstrap();
 107
 108         b.group(nettyGroup)
 109                 .channel(NioSocketChannel.class)
 110                 .handler(channelInitializer);
 111
 112         // Start the client.
 113         b.connect(address).addListener(echoClientHandler);
 114         return echoClientHandler;
 115     }
 116
 117     @Test
 118     public void testClientWithoutServer() throws Exception {
 119         final InetSocketAddress address = new InetSocketAddress(12345);
 120         final EchoClientHandler echoClientHandler = connectClient(address);
 121         final Stopwatch stopwatch = Stopwatch.createStarted();
 122         while (echoClientHandler.getState() == State.CONNECTING && stopwatch.elapsed(TimeUnit.SECONDS) < 5) {
 123             Thread.sleep(100);
 124         }
 125         assertFalse(echoClientHandler.isConnected());
 126         assertEquals(State.FAILED_TO_CONNECT, echoClientHandler.getState());
 127     }
 128
 129 }