96 lines
3.3 KiB
Java
96 lines
3.3 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.tomcat.websocket;
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import java.io.IOException;
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import java.nio.ByteBuffer;
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import java.nio.charset.StandardCharsets;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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import javax.websocket.Extension;
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import javax.websocket.Extension.Parameter;
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import org.junit.Test;
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public class TestPerMessageDeflate {
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/*
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* https://bz.apache.org/bugzilla/show_bug.cgi?id=61491
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*/
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@Test
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public void testSendEmptyMessagePartWithContextTakeover() throws IOException {
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// Set up the extension using defaults
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List<Parameter> parameters = Collections.emptyList();
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List<List<Parameter>> preferences = new ArrayList<>();
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preferences.add(parameters);
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PerMessageDeflate perMessageDeflate = PerMessageDeflate.negotiate(preferences, true);
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perMessageDeflate.setNext(new TesterTransformation());
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ByteBuffer bb1 = ByteBuffer.wrap("A".getBytes(StandardCharsets.UTF_8));
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MessagePart mp1 = new MessagePart(true, 0, Constants.OPCODE_TEXT, bb1, null, null, -1);
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List<MessagePart> uncompressedParts1 = new ArrayList<>();
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uncompressedParts1.add(mp1);
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perMessageDeflate.sendMessagePart(uncompressedParts1);
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ByteBuffer bb2 = ByteBuffer.wrap("".getBytes(StandardCharsets.UTF_8));
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MessagePart mp2 = new MessagePart(true, 0, Constants.OPCODE_TEXT, bb2, null, null, -1);
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List<MessagePart> uncompressedParts2 = new ArrayList<>();
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uncompressedParts2.add(mp2);
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perMessageDeflate.sendMessagePart(uncompressedParts2);
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}
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/*
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* Minimal implementation to enable other transformations to be tested.
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*/
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private static class TesterTransformation implements Transformation {
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@Override
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public boolean validateRsvBits(int i) {
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return false;
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}
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@Override
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public boolean validateRsv(int rsv, byte opCode) {
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return false;
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}
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@Override
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public void setNext(Transformation t) {
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}
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@Override
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public List<MessagePart> sendMessagePart(List<MessagePart> messageParts) {
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return messageParts;
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}
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@Override
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public TransformationResult getMoreData(byte opCode, boolean fin, int rsv, ByteBuffer dest)
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throws IOException {
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return null;
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}
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@Override
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public Extension getExtensionResponse() {
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return null;
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}
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@Override
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public void close() {
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}
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}
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}
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