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//
// ========================================================================
// Copyright (c) 1995-2013 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.common.io.payload;
import static org.hamcrest.Matchers.is;
import java.nio.ByteBuffer;
import java.util.Arrays;
import org.eclipse.jetty.util.BufferUtil;
import org.eclipse.jetty.util.TypeUtil;
import org.eclipse.jetty.util.log.Log;
import org.eclipse.jetty.util.log.Logger;
import org.eclipse.jetty.websocket.common.ByteBufferAssert;
import org.eclipse.jetty.websocket.common.Hex;
import org.eclipse.jetty.websocket.common.UnitGenerator;
import org.eclipse.jetty.websocket.common.WebSocketFrame;
import org.eclipse.jetty.websocket.common.frames.TextFrame;
import org.junit.Assert;
import org.junit.Test;
public class DeMaskProcessorTest
{
private static final Logger LOG = Log.getLogger(DeMaskProcessorTest.class);
@Test
public void testDeMaskText()
{
// Use a string that is not multiple of 4 in length to test if/else branches in DeMaskProcessor
String message = "0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF01";
WebSocketFrame frame = new TextFrame().setPayload(message);
frame.setMask(TypeUtil.fromHexString("11223344"));
ByteBuffer buf = UnitGenerator.generate(frame);
LOG.debug("Buf: {}",BufferUtil.toDetailString(buf));
ByteBuffer payload = buf.slice();
payload.position(6); // where payload starts
LOG.debug("Payload: {}",BufferUtil.toDetailString(payload));
DeMaskProcessor demask = new DeMaskProcessor();
demask.reset(frame);
demask.process(payload);
ByteBufferAssert.assertEquals("DeMasked Text Payload",message,payload);
}
@Test
public void testDeMaskTextSliced()
{
final byte msgChar = '*';
final int messageSize = 25;
byte message[] = new byte[messageSize];
Arrays.fill(message,msgChar);
TextFrame frame = new TextFrame();
frame.setPayload(ByteBuffer.wrap(message));
frame.setMask(Hex.asByteArray("11223344"));
ByteBuffer buf = UnitGenerator.generate(frame);
LOG.debug("Buf: {}",BufferUtil.toDetailString(buf));
ByteBuffer payload = buf.slice();
payload.position(6); // where payload starts
LOG.debug("Payload: {}",BufferUtil.toDetailString(payload));
LOG.debug("Pre-Processed: {}",Hex.asHex(payload));
DeMaskProcessor demask = new DeMaskProcessor();
demask.reset(frame);
ByteBuffer slice1 = payload.slice();
ByteBuffer slice2 = payload.slice();
// slice at non-multiple of 4, but also where last buffer remaining
// is more than 4.
int slicePoint = 7;
slice1.limit(slicePoint);
slice2.position(slicePoint);
Assert.assertThat("Slices are setup right",slice1.remaining() + slice2.remaining(),is(messageSize));
demask.process(slice1);
demask.process(slice2);
LOG.debug("Post-Processed: {}",Hex.asHex(payload));
Assert.assertThat("Payload.remaining",payload.remaining(),is(messageSize));
for (int i = payload.position(); i < payload.limit(); i++)
{
Assert.assertThat("payload[" + i + "]",payload.get(i),is(msgChar));
}
}
}
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