/*
* JBoss, Home of Professional Open Source
* Copyright 2009, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.test.remoting.transport.bisocket.dos;
import java.io.IOException;
import java.lang.reflect.Field;
import java.net.InetAddress;
import java.net.Socket;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import javax.management.MBeanServer;
import junit.framework.TestCase;
import org.apache.log4j.ConsoleAppender;
import org.apache.log4j.Level;
import org.apache.log4j.Logger;
import org.apache.log4j.PatternLayout;
import org.jboss.remoting.Client;
import org.jboss.remoting.InvocationRequest;
import org.jboss.remoting.InvokerLocator;
import org.jboss.remoting.ServerInvocationHandler;
import org.jboss.remoting.ServerInvoker;
import org.jboss.remoting.callback.Callback;
import org.jboss.remoting.callback.HandleCallbackException;
import org.jboss.remoting.callback.InvokerCallbackHandler;
import org.jboss.remoting.transport.Connector;
import org.jboss.remoting.transport.PortUtil;
import org.jboss.remoting.transport.bisocket.Bisocket;
import org.jboss.remoting.transport.bisocket.BisocketServerInvoker;
import EDU.oswego.cs.dl.util.concurrent.Semaphore;
/**
* @author <a href="mailto:ron.sigal@jboss.com">Ron Sigal</a>
* @version $Rev$
* <p>
* Copyright Oct 13, 2010
* </p>
*/
public class DosTestCase extends TestCase
{
private static final Logger log = Logger.getLogger(DosTestCase.class);
private static final String CALLBACK_TEST = "callbackTest";
private static final int dosMaxThreadsValue = 49;
private static final int dosTimeoutValue = 59;
private static boolean firstTime = true;
protected String host;
protected int port;
protected int secondaryPort;
protected String locatorURI;
protected InvokerLocator serverLocator;
protected Connector connector;
protected TestInvocationHandler invocationHandler;
protected Object lock = new Object();
protected boolean dosAttackThreadRan;
protected boolean secondCallbackRan;
public void setUp() throws Exception
{
if (firstTime)
{
firstTime = false;
Logger.getLogger("org.jboss.remoting").setLevel(Level.INFO);
Logger.getLogger("org.jboss.test.remoting").setLevel(Level.INFO);
String pattern = "[%d{ABSOLUTE}] [%t] %5p (%F:%L) - %m%n";
PatternLayout layout = new PatternLayout(pattern);
ConsoleAppender consoleAppender = new ConsoleAppender(layout);
Logger.getRootLogger().addAppender(consoleAppender);
}
}
public void tearDown()
{
}
public void testDosAttack() throws Throwable
{
log.info("entering " + getName());
// Start server.
setupServer(false, false);
// Create client.
HashMap clientConfig = new HashMap();
clientConfig.put(InvokerLocator.FORCE_REMOTE, "true");
addExtraClientConfig(clientConfig);
final Client client = new Client(serverLocator, clientConfig);
client.connect();
assertEquals("abc", client.invoke("abc"));
log.info("client is connected");
// Add callback handler.
TestCallbackHandler callbackHandler = new TestCallbackHandler();
HashMap metadata = new HashMap();
metadata.put(Bisocket.IS_CALLBACK_SERVER, "true");
client.addListener(callbackHandler, metadata);
client.invoke(CALLBACK_TEST);
assertEquals(1, callbackHandler.counter);
log.info("callback handler is installed");
// Test DOS attack.
new Thread()
{
public void run()
{
try
{
Socket s = new Socket(host, secondaryPort);
log.info(this + " created socket " + s);
synchronized (lock)
{
dosAttackThreadRan = true;
}
}
catch (IOException e)
{
log.error("unable to connect to secondaryPort: " + secondaryPort, e);
}
finally
{
synchronized (lock)
{
lock.notifyAll();
}
}
}
}.start();
Thread.sleep(2000);
synchronized (lock)
{
if (!dosAttackThreadRan)
{
long start = System.currentTimeMillis();
long end = start + 10000;
while (end - System.currentTimeMillis() > 0)
{
try
{
lock.wait(end - System.currentTimeMillis());
}
catch (InterruptedException e){
}
}
}
}
if (!dosAttackThreadRan)
{
fail("DOS attack thread did not run");
}
// DOS attack has occurred. Try to add another callback handler.
new Thread()
{
public void run()
{
TestCallbackHandler callbackHandler2 = new TestCallbackHandler();
try
{
HashMap metadata = new HashMap();
metadata.put(Bisocket.IS_CALLBACK_SERVER, "true");
client.addListener(callbackHandler2, metadata);
secondCallbackRan = true;
log.info(this + " second callback handler installed after DOS attack");
}
catch (Throwable e)
{
log.info(this + " second callback failed", e);
}
}
}.start();
Thread.sleep(10000);
assertTrue(secondCallbackRan);
client.removeListener(callbackHandler);
client.disconnect();
connector.stop();
}
public void testConfigurationDefault() throws Throwable
{
log.info("entering " + getName());
doConfigurationTest(false, false, Bisocket.SECONDARY_MAX_THREADS_DEFAULT, Bisocket.SECONDARY_TIMEOUT_DEFAULT);
log.info(getName() + " PASSES");
}
public void testConfigurationMap() throws Throwable
{
log.info("entering " + getName());
doConfigurationTest(true, false, dosMaxThreadsValue, dosTimeoutValue);
log.info(getName() + " PASSES");
}
public void testConfigurationInvokerLocater() throws Throwable
{
log.info("entering " + getName());
doConfigurationTest(true, true, dosMaxThreadsValue, dosTimeoutValue);
log.info(getName() + " PASSES");
}
protected void doConfigurationTest(boolean setParameters, boolean useInvokerLocator, int threadCount, int timeout) throws Throwable
{
// Start server.
setupServer(setParameters, useInvokerLocator);
// Create client.
HashMap clientConfig = new HashMap();
clientConfig.put(InvokerLocator.FORCE_REMOTE, "true");
addExtraClientConfig(clientConfig);
final Client client = new Client(serverLocator, clientConfig);
client.connect();
assertEquals("abc", client.invoke("abc"));
log.info("client is connected");
// Add callback handler.
TestCallbackHandler callbackHandler = new TestCallbackHandler();
HashMap metadata = new HashMap();
metadata.put(Bisocket.IS_CALLBACK_SERVER, "true");
client.addListener(callbackHandler, metadata);
client.invoke(CALLBACK_TEST);
assertEquals(1, callbackHandler.counter);
log.info("callback handler is installed");
BisocketServerInvoker invoker = (BisocketServerInvoker) connector.getServerInvoker();
assertEquals(threadCount, invoker.getDosMaxThreads());
assertEquals(timeout, invoker.getDosTimeout());
verifyThreadValues(invoker, threadCount, timeout);
client.removeListener(callbackHandler);
client.disconnect();
connector.stop();
}
protected boolean verifyThreadValues(ServerInvoker invoker, int threadCount, int timeout) throws Exception
{
Class[] classes = BisocketServerInvoker.class.getDeclaredClasses();
Class threadClass = null;
for (int i = 0; i < classes.length; i++)
{
if (classes[i].getName().indexOf("SecondaryServerSocketThread") > -1)
{
threadClass = classes[i];
break;
}
}
log.info("threadClass: " + threadClass);
Field secondaryServerSocketThreads = BisocketServerInvoker.class.getDeclaredField("secondaryServerSocketThreads");
secondaryServerSocketThreads.setAccessible(true);
Thread secondaryServerSocketThread = (Thread) ((Set)secondaryServerSocketThreads.get(invoker)).iterator().next();
Field maxThreads = threadClass.getDeclaredField("maxThreads");
maxThreads.setAccessible(true);
Field localDosTimeout = threadClass.getDeclaredField("localDosTimeout");
localDosTimeout.setAccessible(true);
assertEquals(threadCount, ((Semaphore)maxThreads.get(secondaryServerSocketThread)).permits());
assertEquals(timeout, ((Integer)localDosTimeout.get(secondaryServerSocketThread)).intValue());
return true;
}
protected String getTransport()
{
return "bisocket";
}
protected void addExtraClientConfig(Map config) {}
protected void addExtraServerConfig(Map config) {}
protected void setupServer(boolean setParameters, boolean useInvokerLocator) throws Exception
{
host = InetAddress.getLocalHost().getHostAddress();
port = PortUtil.findFreePort(host);
secondaryPort = PortUtil.findFreePort(host);
locatorURI = getTransport() + "://" + host + ":" + port + "/?secondaryBindPort=" + secondaryPort;
String metadata = System.getProperty("remoting.metadata");
if (metadata != null)
{
locatorURI += "&" + metadata;
}
HashMap config = new HashMap();
config.put(InvokerLocator.FORCE_REMOTE, "true");
addExtraServerConfig(config);
if (setParameters)
{
if (useInvokerLocator)
{
locatorURI += "&" + Bisocket.SECONDARY_MAX_THREADS + "=" + Integer.toString(dosMaxThreadsValue);
locatorURI += "&" + Bisocket.SECONDARY_TIMEOUT + "=" + Integer.toString(dosTimeoutValue);
}
else
{
config.put(Bisocket.SECONDARY_MAX_THREADS, Integer.toString(dosMaxThreadsValue));
config.put(Bisocket.SECONDARY_TIMEOUT, Integer.toString(dosTimeoutValue));
}
}
serverLocator = new InvokerLocator(locatorURI);
log.info("Starting remoting server with locator uri of: " + locatorURI);
connector = new Connector(serverLocator, config);
connector.create();
invocationHandler = new TestInvocationHandler();
connector.addInvocationHandler("test", invocationHandler);
connector.start();
}
protected void shutdownServer() throws Exception
{
if (connector != null)
connector.stop();
}
static class TestInvocationHandler implements ServerInvocationHandler
{
public Set listeners = new HashSet();
public void addListener(InvokerCallbackHandler callbackHandler)
{
listeners.add(callbackHandler);
}
public Object invoke(final InvocationRequest invocation) throws Throwable
{
if (CALLBACK_TEST.equals(invocation.getParameter()))
{
Iterator it = listeners.iterator();
while (it.hasNext())
{
InvokerCallbackHandler handler = (InvokerCallbackHandler) it.next();
handler.handleCallback(new Callback("test"));
log.info(this + " sent callback");
}
}
return invocation.getParameter();
}
public void removeListener(InvokerCallbackHandler callbackHandler) {}
public void setMBeanServer(MBeanServer server) {}
public void setInvoker(ServerInvoker invoker) {}
}
static class TestCallbackHandler implements InvokerCallbackHandler
{
public int counter;
public void handleCallback(Callback callback) throws HandleCallbackException
{
log.info(this + " received callback");
counter++;
}
}
}