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//
// ========================================================================
// Copyright (c) 1995-2015 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.websocket.server;
import static org.hamcrest.Matchers.is;
import java.nio.ByteBuffer;
import java.nio.charset.StandardCharsets;
import java.util.Arrays;
import java.util.concurrent.TimeUnit;
import org.eclipse.jetty.io.LeakTrackingByteBufferPool;
import org.eclipse.jetty.io.MappedByteBufferPool;
import org.eclipse.jetty.toolchain.test.EventQueue;
import org.eclipse.jetty.util.BufferUtil;
import org.eclipse.jetty.websocket.api.WebSocketPolicy;
import org.eclipse.jetty.websocket.common.Generator;
import org.eclipse.jetty.websocket.common.WebSocketFrame;
import org.eclipse.jetty.websocket.common.frames.TextFrame;
import org.eclipse.jetty.websocket.common.test.BlockheadClient;
import org.eclipse.jetty.websocket.common.test.LeakTrackingBufferPoolRule;
import org.eclipse.jetty.websocket.server.examples.MyEchoServlet;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.Ignore;
/**
* Test simulating a client that talks too quickly.
* <p>
* There is a class of client that will send the GET+Upgrade Request along with a few websocket frames in a single
* network packet. This test attempts to perform this behavior as close as possible.
*/
public class TooFastClientTest
{
private static SimpleServletServer server;
@BeforeClass
public static void startServer() throws Exception
{
server = new SimpleServletServer(new MyEchoServlet());
server.start();
}
@AfterClass
public static void stopServer()
{
server.stop();
}
@Test
@Ignore("RELEASE")
public void testUpgradeWithSmallFrames() throws Exception
{
BlockheadClient client = new BlockheadClient(server.getServerUri());
try
{
client.connect();
// Create ByteBuffer representing the initial opening network packet from the client
ByteBuffer initialPacket = ByteBuffer.allocate(4096);
BufferUtil.clearToFill(initialPacket);
// Add upgrade request to packet
StringBuilder upgradeRequest = client.generateUpgradeRequest();
ByteBuffer upgradeBuffer = BufferUtil.toBuffer(upgradeRequest.toString(),StandardCharsets.UTF_8);
initialPacket.put(upgradeBuffer);
// Add text frames
Generator generator = new Generator(WebSocketPolicy.newClientPolicy(),
new LeakTrackingBufferPoolRule("Generator"));
String msg1 = "Echo 1";
String msg2 = "This is also an echooooo!";
TextFrame frame1 = new TextFrame().setPayload(msg1);
TextFrame frame2 = new TextFrame().setPayload(msg2);
// Need to set frame mask (as these are client frames)
byte mask[] = new byte[] { 0x11, 0x22, 0x33, 0x44 };
frame1.setMask(mask);
frame2.setMask(mask);
generator.generateWholeFrame(frame1,initialPacket);
generator.generateWholeFrame(frame2,initialPacket);
// Write packet to network
BufferUtil.flipToFlush(initialPacket,0);
client.writeRaw(initialPacket);
// Expect upgrade
client.expectUpgradeResponse();
// Read frames (hopefully text frames)
EventQueue<WebSocketFrame> frames = client.readFrames(2,1,TimeUnit.SECONDS);
WebSocketFrame tf = frames.poll();
Assert.assertThat("Text Frame/msg1",tf.getPayloadAsUTF8(),is(msg1));
tf = frames.poll();
Assert.assertThat("Text Frame/msg2",tf.getPayloadAsUTF8(),is(msg2));
}
finally
{
client.close();
}
}
/**
* Test where were a client sends a HTTP Upgrade to websocket AND enough websocket frame(s)
* to completely overfill the {@link org.eclipse.jetty.io.AbstractConnection#getInputBufferSize()}
* to test a situation where the WebSocket connection opens with prefill that exceeds
* the normal input buffer sizes.
* @throws Exception on test failure
*/
@Test
@Ignore("RELEASE")
public void testUpgradeWithLargeFrame() throws Exception
{
BlockheadClient client = new BlockheadClient(server.getServerUri());
try
{
client.connect();
// Create ByteBuffer representing the initial opening network packet from the client
ByteBuffer initialPacket = ByteBuffer.allocate(100 * 1024);
BufferUtil.clearToFill(initialPacket);
// Add upgrade request to packet
StringBuilder upgradeRequest = client.generateUpgradeRequest();
ByteBuffer upgradeBuffer = BufferUtil.toBuffer(upgradeRequest.toString(),StandardCharsets.UTF_8);
initialPacket.put(upgradeBuffer);
// Add text frames
Generator generator = new Generator(WebSocketPolicy.newClientPolicy(),
new LeakTrackingByteBufferPool(new MappedByteBufferPool.Tagged()));
byte bigMsgBytes[] = new byte[64*1024];
Arrays.fill(bigMsgBytes,(byte)'x');
String bigMsg = new String(bigMsgBytes, StandardCharsets.UTF_8);
// Need to set frame mask (as these are client frames)
byte mask[] = new byte[] { 0x11, 0x22, 0x33, 0x44 };
TextFrame frame = new TextFrame().setPayload(bigMsg);
frame.setMask(mask);
generator.generateWholeFrame(frame,initialPacket);
// Write packet to network
BufferUtil.flipToFlush(initialPacket,0);
client.writeRaw(initialPacket);
// Expect upgrade
client.expectUpgradeResponse();
// Read frames (hopefully text frames)
EventQueue<WebSocketFrame> frames = client.readFrames(1,1,TimeUnit.SECONDS);
WebSocketFrame tf = frames.poll();
Assert.assertThat("Text Frame/msg1",tf.getPayloadAsUTF8(),is(bigMsg));
}
finally
{
client.close();
}
}
}
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