//
// ========================================================================
// Copyright (c) 1995-2014 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;
import static org.hamcrest.Matchers.allOf;
import static org.hamcrest.Matchers.greaterThan;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.lessThan;
import java.nio.ByteBuffer;
import java.nio.charset.StandardCharsets;
import java.util.Arrays;
import org.eclipse.jetty.websocket.api.MessageTooLargeException;
import org.eclipse.jetty.websocket.api.StatusCode;
import org.eclipse.jetty.websocket.api.WebSocketBehavior;
import org.eclipse.jetty.websocket.api.WebSocketPolicy;
import org.eclipse.jetty.websocket.common.test.IncomingFramesCapture;
import org.eclipse.jetty.websocket.common.test.UnitParser;
import org.eclipse.jetty.websocket.common.util.MaskedByteBuffer;
import org.junit.Assert;
import org.junit.Test;
public class TextPayloadParserTest
{
@Test
public void testFrameTooLargeDueToPolicy() throws Exception
{
WebSocketPolicy policy = new WebSocketPolicy(WebSocketBehavior.SERVER);
// Artificially small buffer/payload
policy.setInputBufferSize(1024); // read buffer
policy.setMaxTextMessageBufferSize(1024); // streaming buffer (not used in this test)
policy.setMaxTextMessageSize(1024); // actual maximum text message size policy
byte utf[] = new byte[2048];
Arrays.fill(utf,(byte)'a');
Assert.assertThat("Must be a medium length payload",utf.length,allOf(greaterThan(0x7E),lessThan(0xFFFF)));
ByteBuffer buf = ByteBuffer.allocate(utf.length + 8);
buf.put((byte)0x81); // text frame, fin = true
buf.put((byte)(0x80 | 0x7E)); // 0x7E == 126 (a 2 byte payload length)
buf.putShort((short)utf.length);
MaskedByteBuffer.putMask(buf);
MaskedByteBuffer.putPayload(buf,utf);
buf.flip();
UnitParser parser = new UnitParser(policy);
IncomingFramesCapture capture = new IncomingFramesCapture();
parser.setIncomingFramesHandler(capture);
parser.parseQuietly(buf);
capture.assertHasErrors(MessageTooLargeException.class,1);
capture.assertHasNoFrames();
MessageTooLargeException err = (MessageTooLargeException)capture.getErrors().poll();
Assert.assertThat("Error.closeCode",err.getStatusCode(),is(StatusCode.MESSAGE_TOO_LARGE));
}
@Test
public void testLongMaskedText() throws Exception
{
StringBuffer sb = new StringBuffer(); ;
for (int i = 0; i < 3500; i++)
{
sb.append("Hell\uFF4f Big W\uFF4Frld ");
}
sb.append(". The end.");
String expectedText = sb.toString();
byte utf[] = expectedText.getBytes(StandardCharsets.UTF_8);
Assert.assertThat("Must be a long length payload",utf.length,greaterThan(0xFFFF));
ByteBuffer buf = ByteBuffer.allocate(utf.length + 32);
buf.put((byte)0x81); // text frame, fin = true
buf.put((byte)(0x80 | 0x7F)); // 0x7F == 127 (a 8 byte payload length)
buf.putLong(utf.length);
MaskedByteBuffer.putMask(buf);
MaskedByteBuffer.putPayload(buf,utf);
buf.flip();
WebSocketPolicy policy = WebSocketPolicy.newServerPolicy();
policy.setMaxTextMessageSize(100000);
Parser parser = new UnitParser(policy);
IncomingFramesCapture capture = new IncomingFramesCapture();
parser.setIncomingFramesHandler(capture);
parser.parse(buf);
capture.assertNoErrors();
capture.assertHasFrame(OpCode.TEXT,1);
WebSocketFrame txt = capture.getFrames().poll();
Assert.assertThat("TextFrame.data",txt.getPayloadAsUTF8(),is(expectedText));
}
@Test
public void testMediumMaskedText() throws Exception
{
StringBuffer sb = new StringBuffer(); ;
for (int i = 0; i < 14; i++)
{
sb.append("Hell\uFF4f Medium W\uFF4Frld ");
}
sb.append(". The end.");
String expectedText = sb.toString();
byte utf[] = expectedText.getBytes(StandardCharsets.UTF_8);
Assert.assertThat("Must be a medium length payload",utf.length,allOf(greaterThan(0x7E),lessThan(0xFFFF)));
ByteBuffer buf = ByteBuffer.allocate(utf.length + 10);
buf.put((byte)0x81);
buf.put((byte)(0x80 | 0x7E)); // 0x7E == 126 (a 2 byte payload length)
buf.putShort((short)utf.length);
MaskedByteBuffer.putMask(buf);
MaskedByteBuffer.putPayload(buf,utf);
buf.flip();
WebSocketPolicy policy = new WebSocketPolicy(WebSocketBehavior.SERVER);
Parser parser = new UnitParser(policy);
IncomingFramesCapture capture = new IncomingFramesCapture();
parser.setIncomingFramesHandler(capture);
parser.parse(buf);
capture.assertNoErrors();
capture.assertHasFrame(OpCode.TEXT,1);
WebSocketFrame txt = capture.getFrames().poll();
Assert.assertThat("TextFrame.data",txt.getPayloadAsUTF8(),is(expectedText));
}
@Test
public void testShortMaskedFragmentedText() throws Exception
{
String part1 = "Hello ";
String part2 = "World";
byte b1[] = part1.getBytes(StandardCharsets.UTF_8);
byte b2[] = part2.getBytes(StandardCharsets.UTF_8);
ByteBuffer buf = ByteBuffer.allocate(32);
// part 1
buf.put((byte)0x01); // no fin + text
buf.put((byte)(0x80 | b1.length));
MaskedByteBuffer.putMask(buf);
MaskedByteBuffer.putPayload(buf,b1);
// part 2
buf.put((byte)0x80); // fin + continuation
buf.put((byte)(0x80 | b2.length));
MaskedByteBuffer.putMask(buf);
MaskedByteBuffer.putPayload(buf,b2);
buf.flip();
WebSocketPolicy policy = new WebSocketPolicy(WebSocketBehavior.SERVER);
Parser parser = new UnitParser(policy);
IncomingFramesCapture capture = new IncomingFramesCapture();
parser.setIncomingFramesHandler(capture);
parser.parse(buf);
capture.assertNoErrors();
capture.assertHasFrame(OpCode.TEXT,1);
capture.assertHasFrame(OpCode.CONTINUATION,1);
WebSocketFrame txt = capture.getFrames().poll();
Assert.assertThat("TextFrame[0].data",txt.getPayloadAsUTF8(),is(part1));
txt = capture.getFrames().poll();
Assert.assertThat("TextFrame[1].data",txt.getPayloadAsUTF8(),is(part2));
}
@Test
public void testShortMaskedText() throws Exception
{
String expectedText = "Hello World";
byte utf[] = expectedText.getBytes(StandardCharsets.UTF_8);
ByteBuffer buf = ByteBuffer.allocate(24);
buf.put((byte)0x81);
buf.put((byte)(0x80 | utf.length));
MaskedByteBuffer.putMask(buf);
MaskedByteBuffer.putPayload(buf,utf);
buf.flip();
WebSocketPolicy policy = new WebSocketPolicy(WebSocketBehavior.SERVER);
Parser parser = new UnitParser(policy);
IncomingFramesCapture capture = new IncomingFramesCapture();
parser.setIncomingFramesHandler(capture);
parser.parse(buf);
capture.assertNoErrors();
capture.assertHasFrame(OpCode.TEXT,1);
WebSocketFrame txt = capture.getFrames().poll();
Assert.assertThat("TextFrame.data",txt.getPayloadAsUTF8(),is(expectedText));
}
@Test
public void testShortMaskedUtf8Text() throws Exception
{
String expectedText = "Hell\uFF4f W\uFF4Frld";
byte utf[] = expectedText.getBytes(StandardCharsets.UTF_8);
ByteBuffer buf = ByteBuffer.allocate(24);
buf.put((byte)0x81);
buf.put((byte)(0x80 | utf.length));
MaskedByteBuffer.putMask(buf);
MaskedByteBuffer.putPayload(buf,utf);
buf.flip();
WebSocketPolicy policy = new WebSocketPolicy(WebSocketBehavior.SERVER);
Parser parser = new UnitParser(policy);
IncomingFramesCapture capture = new IncomingFramesCapture();
parser.setIncomingFramesHandler(capture);
parser.parse(buf);
capture.assertNoErrors();
capture.assertHasFrame(OpCode.TEXT,1);
WebSocketFrame txt = capture.getFrames().poll();
Assert.assertThat("TextFrame.data",txt.getPayloadAsUTF8(),is(expectedText));
}
}