| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.aries.rsa.provider.fastbin.tcp; |
| |
| import java.net.ProtocolException; |
| import java.nio.BufferUnderflowException; |
| import java.nio.ByteBuffer; |
| import java.nio.channels.ReadableByteChannel; |
| import java.nio.channels.WritableByteChannel; |
| |
| import org.apache.aries.rsa.provider.fastbin.io.ProtocolCodec.BufferState; |
| import org.easymock.EasyMock; |
| import org.easymock.IAnswer; |
| import org.fusesource.hawtbuf.Buffer; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import static org.easymock.EasyMock.anyObject; |
| import static org.easymock.EasyMock.createMock; |
| import static org.easymock.EasyMock.expect; |
| import static org.easymock.EasyMock.getCurrentArguments; |
| import static org.easymock.EasyMock.replay; |
| import static org.junit.Assert.assertEquals; |
| |
| public class LengthPrefixedCodecTest { |
| private ReadableByteChannel readableByteChannel = createMock(ReadableByteChannel.class); |
| |
| private WritableByteChannel writableByteChannel = createMock(WritableByteChannel.class); |
| private LengthPrefixedCodec codec; |
| |
| @Before |
| public void createLengthPrefixedCodec() throws Exception { |
| codec = new LengthPrefixedCodec(); |
| codec.setReadableByteChannel(readableByteChannel); |
| codec.setWritableByteChannel(writableByteChannel); |
| } |
| |
| @Before |
| public void setUp() throws Exception { |
| } |
| |
| @After |
| public void tearDown() throws Exception { |
| } |
| |
| @Test |
| public void testFull() throws Exception { |
| assertEquals(false, codec.full()); |
| } |
| |
| @Test |
| public void testEmpty() throws Exception { |
| assertEquals(true, codec.empty()); |
| } |
| |
| @Test |
| public void testGetWriteCounter() throws Exception { |
| assertEquals(0L, codec.getWriteCounter()); |
| } |
| |
| @Test |
| public void testGetReadCounter() throws Exception { |
| assertEquals(0L, codec.getReadCounter()); |
| } |
| |
| @Test |
| public void testWrite() throws Exception { |
| final Buffer value = Buffer.ascii("TESTDATA"); |
| |
| final BufferState state = codec.write(value); |
| |
| assertEquals(BufferState.WAS_EMPTY, state); |
| assertEquals(false, codec.full()); |
| assertEquals(false, codec.empty()); |
| assertEquals(0L, codec.getWriteCounter()); |
| } |
| |
| @Test |
| public void testWrite$Twice() throws Exception { |
| final Buffer value1 = Buffer.ascii("TESTDATA"); |
| final Buffer value2 = Buffer.ascii("TESTDATA"); |
| codec.write(value1); |
| |
| final BufferState state = codec.write(value2); |
| |
| assertEquals(BufferState.NOT_EMPTY, state); |
| assertEquals(false, codec.full()); |
| assertEquals(false, codec.empty()); |
| assertEquals(0L, codec.getWriteCounter()); |
| } |
| |
| @Test |
| public void testFlush() throws Exception { |
| final Buffer value = Buffer.ascii("TESTDATA"); |
| codec.write(value); |
| final int bytesThatWillBeWritten = value.length(); |
| expect(writableByteChannel.write(anyObject())).andAnswer(createWriteAnswer(bytesThatWillBeWritten)); |
| replay(writableByteChannel); |
| |
| final BufferState state = codec.flush(); |
| |
| assertEquals(BufferState.EMPTY, state); |
| assertEquals(false, codec.full()); |
| assertEquals(true, codec.empty()); |
| assertEquals(bytesThatWillBeWritten, codec.getWriteCounter()); |
| |
| assertEquals(BufferState.WAS_EMPTY, codec.flush()); |
| } |
| |
| @Test |
| public void testFlush$Partially() throws Exception { |
| final Buffer value = Buffer.ascii("TESTDATA"); |
| codec.write(value); |
| final int bytesThatWillBeWritten = value.length() / 2; |
| expect(writableByteChannel.write(anyObject())).andAnswer(createWriteAnswer(bytesThatWillBeWritten)); |
| replay(writableByteChannel); |
| |
| final BufferState state = codec.flush(); |
| |
| assertEquals(BufferState.NOT_EMPTY, state); |
| assertEquals(false, codec.full()); |
| assertEquals(false, codec.empty()); |
| assertEquals(bytesThatWillBeWritten, codec.getWriteCounter()); |
| } |
| |
| @Test(expected=ProtocolException.class) |
| public void testReadEvilPackage() throws Exception { |
| |
| expect(readableByteChannel.read(EasyMock.anyObject())).andAnswer(new IAnswer<Integer>() { |
| |
| @Override |
| public Integer answer() throws Throwable { |
| ByteBuffer buffer = (ByteBuffer)EasyMock.getCurrentArguments()[0]; |
| // an attacker could do that to provoke out of memory |
| buffer.putInt(Integer.MAX_VALUE-1); |
| return 1; |
| } |
| }); |
| replay(readableByteChannel); |
| codec.read(); |
| } |
| |
| private IAnswer<Integer> createWriteAnswer(final int length) { |
| return new IAnswer<Integer>() { |
| @Override |
| public Integer answer() throws Throwable { |
| final ByteBuffer buffer = (ByteBuffer) getCurrentArguments()[0]; |
| if(buffer.remaining() < length) |
| throw new BufferUnderflowException(); |
| buffer.position(buffer.position() + length); |
| return length; |
| } |
| }; |
| } |
| } |