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/*
* Copyright (c) 2012 the original author or authors.
*
* Licensed 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 org.eclipse.jetty.spdy;
import java.nio.channels.ClosedChannelException;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicReference;
import org.eclipse.jetty.spdy.api.DataInfo;
import org.eclipse.jetty.spdy.api.GoAwayInfo;
import org.eclipse.jetty.spdy.api.ReplyInfo;
import org.eclipse.jetty.spdy.api.SPDYException;
import org.eclipse.jetty.spdy.api.Session;
import org.eclipse.jetty.spdy.api.SessionFrameListener;
import org.eclipse.jetty.spdy.api.SessionStatus;
import org.eclipse.jetty.spdy.api.Stream;
import org.eclipse.jetty.spdy.api.StreamFrameListener;
import org.eclipse.jetty.spdy.api.StringDataInfo;
import org.eclipse.jetty.spdy.api.SynInfo;
import org.eclipse.jetty.spdy.api.server.ServerSessionFrameListener;
import org.hamcrest.CoreMatchers;
import org.junit.Assert;
import org.junit.Test;
public class GoAwayTest extends AbstractTest
{
@Test
public void testServerReceivesGoAwayOnClientGoAway() throws Exception
{
final CountDownLatch latch = new CountDownLatch(1);
ServerSessionFrameListener serverSessionFrameListener = new ServerSessionFrameListener.Adapter()
{
@Override
public StreamFrameListener onSyn(Stream stream, SynInfo synInfo)
{
stream.reply(new ReplyInfo(true));
return null;
}
@Override
public void onGoAway(Session session, GoAwayInfo goAwayInfo)
{
Assert.assertEquals(0, goAwayInfo.getLastStreamId());
Assert.assertSame(SessionStatus.OK, goAwayInfo.getSessionStatus());
latch.countDown();
}
};
Session session = startClient(startServer(serverSessionFrameListener), null);
session.syn(new SynInfo(true), null);
session.goAway();
Assert.assertTrue(latch.await(5, TimeUnit.SECONDS));
}
@Test
public void testClientReceivesGoAwayOnServerGoAway() throws Exception
{
ServerSessionFrameListener serverSessionFrameListener = new ServerSessionFrameListener.Adapter()
{
@Override
public StreamFrameListener onSyn(Stream stream, SynInfo synInfo)
{
stream.reply(new ReplyInfo(true));
stream.getSession().goAway();
return null;
}
};
final AtomicReference<GoAwayInfo> ref = new AtomicReference<>();
final CountDownLatch latch = new CountDownLatch(1);
SessionFrameListener clientSessionFrameListener = new SessionFrameListener.Adapter()
{
@Override
public void onGoAway(Session session, GoAwayInfo goAwayInfo)
{
ref.set(goAwayInfo);
latch.countDown();
}
};
Session session = startClient(startServer(serverSessionFrameListener), clientSessionFrameListener);
Stream stream1 = session.syn(new SynInfo(true), null).get(5, TimeUnit.SECONDS);
Assert.assertTrue(latch.await(5, TimeUnit.SECONDS));
GoAwayInfo goAwayInfo = ref.get();
Assert.assertNotNull(goAwayInfo);
Assert.assertEquals(stream1.getId(), goAwayInfo.getLastStreamId());
Assert.assertSame(SessionStatus.OK, goAwayInfo.getSessionStatus());
}
@Test
public void testSynStreamIgnoredAfterGoAway() throws Exception
{
final CountDownLatch latch = new CountDownLatch(1);
ServerSessionFrameListener serverSessionFrameListener = new ServerSessionFrameListener.Adapter()
{
private final AtomicInteger syns = new AtomicInteger();
@Override
public StreamFrameListener onSyn(Stream stream, SynInfo synInfo)
{
int synCount = syns.incrementAndGet();
if (synCount == 1)
{
stream.reply(new ReplyInfo(true));
stream.getSession().goAway();
}
else
{
latch.countDown();
}
return null;
}
};
SessionFrameListener clientSessionFrameListener = new SessionFrameListener.Adapter()
{
@Override
public void onGoAway(Session session, GoAwayInfo goAwayInfo)
{
session.syn(new SynInfo(true), null);
}
};
Session session = startClient(startServer(serverSessionFrameListener), clientSessionFrameListener);
session.syn(new SynInfo(true), null);
Assert.assertFalse(latch.await(1, TimeUnit.SECONDS));
}
@Test
public void testDataNotProcessedAfterGoAway() throws Exception
{
final CountDownLatch closeLatch = new CountDownLatch(1);
final CountDownLatch dataLatch = new CountDownLatch(1);
ServerSessionFrameListener serverSessionFrameListener = new ServerSessionFrameListener.Adapter()
{
private AtomicInteger syns = new AtomicInteger();
@Override
public StreamFrameListener onSyn(Stream stream, SynInfo synInfo)
{
stream.reply(new ReplyInfo(true));
int synCount = syns.incrementAndGet();
if (synCount == 1)
{
return null;
}
else
{
stream.getSession().goAway();
closeLatch.countDown();
return new StreamFrameListener.Adapter()
{
@Override
public void onData(Stream stream, DataInfo dataInfo)
{
dataLatch.countDown();
}
};
}
}
};
final AtomicReference<GoAwayInfo> goAwayRef = new AtomicReference<>();
final CountDownLatch goAwayLatch = new CountDownLatch(1);
SessionFrameListener clientSessionFrameListener = new SessionFrameListener.Adapter()
{
@Override
public void onGoAway(Session session, GoAwayInfo goAwayInfo)
{
goAwayRef.set(goAwayInfo);
goAwayLatch.countDown();
}
};
Session session = startClient(startServer(serverSessionFrameListener), clientSessionFrameListener);
// First stream is processed ok
final CountDownLatch reply1Latch = new CountDownLatch(1);
Stream stream1 = session.syn(new SynInfo(true), new StreamFrameListener.Adapter()
{
@Override
public void onReply(Stream stream, ReplyInfo replyInfo)
{
reply1Latch.countDown();
}
}).get(5, TimeUnit.SECONDS);
Assert.assertTrue(reply1Latch.await(5, TimeUnit.SECONDS));
// Second stream is closed in the middle
Stream stream2 = session.syn(new SynInfo(false), null).get(5, TimeUnit.SECONDS);
Assert.assertTrue(closeLatch.await(5, TimeUnit.SECONDS));
// There is a race between the data we want to send, and the client
// closing the connection because the server closed it after the
// go_away, so we guard with a try/catch to have the test pass cleanly
try
{
stream2.data(new StringDataInfo("foo", true));
Assert.assertFalse(dataLatch.await(1, TimeUnit.SECONDS));
}
catch (SPDYException x)
{
Assert.assertThat(x.getCause(), CoreMatchers.instanceOf(ClosedChannelException.class));
}
// The last good stream is the second, because it was received by the server
Assert.assertTrue(goAwayLatch.await(5, TimeUnit.SECONDS));
GoAwayInfo goAway = goAwayRef.get();
Assert.assertNotNull(goAway);
Assert.assertEquals(stream2.getId(), goAway.getLastStreamId());
}
}
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