164 lines
5.2 KiB
Java
164 lines
5.2 KiB
Java
/*
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* Copyright 2015 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with 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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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/*
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* Copyright 2014 Twitter, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* 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 io.netty.handler.codec.http2;
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import io.netty.buffer.ByteBuf;
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import io.netty.buffer.Unpooled;
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import io.netty.util.AsciiString;
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import org.junit.Assert;
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import org.junit.Test;
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import java.util.Arrays;
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import java.util.Random;
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public class HpackHuffmanTest {
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@Test
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public void testHuffman() throws Http2Exception {
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String s = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
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for (int i = 0; i < s.length(); i++) {
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roundTrip(s.substring(0, i));
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}
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Random random = new Random(123456789L);
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byte[] buf = new byte[4096];
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random.nextBytes(buf);
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roundTrip(buf);
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}
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@Test(expected = Http2Exception.class)
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public void testDecodeEOS() throws Http2Exception {
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byte[] buf = new byte[4];
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for (int i = 0; i < 4; i++) {
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buf[i] = (byte) 0xFF;
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}
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decode(buf);
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}
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@Test(expected = Http2Exception.class)
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public void testDecodeIllegalPadding() throws Http2Exception {
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byte[] buf = new byte[1];
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buf[0] = 0x00; // '0', invalid padding
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decode(buf);
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}
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@Test(expected = Http2Exception.class)
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public void testDecodeExtraPadding() throws Http2Exception {
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byte[] buf = makeBuf(0x0f, 0xFF); // '1', 'EOS'
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decode(buf);
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}
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@Test(expected = Http2Exception.class)
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public void testDecodeExtraPadding1byte() throws Http2Exception {
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byte[] buf = makeBuf(0xFF);
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decode(buf);
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}
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@Test(expected = Http2Exception.class)
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public void testDecodeExtraPadding2byte() throws Http2Exception {
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byte[] buf = makeBuf(0x1F, 0xFF); // 'a'
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decode(buf);
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}
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@Test(expected = Http2Exception.class)
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public void testDecodeExtraPadding3byte() throws Http2Exception {
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byte[] buf = makeBuf(0x1F, 0xFF, 0xFF); // 'a'
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decode(buf);
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}
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@Test(expected = Http2Exception.class)
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public void testDecodeExtraPadding4byte() throws Http2Exception {
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byte[] buf = makeBuf(0x1F, 0xFF, 0xFF, 0xFF); // 'a'
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decode(buf);
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}
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@Test(expected = Http2Exception.class)
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public void testDecodeExtraPadding29bit() throws Http2Exception {
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byte[] buf = makeBuf(0xFF, 0x9F, 0xFF, 0xFF, 0xFF); // '|'
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decode(buf);
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}
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@Test(expected = Http2Exception.class)
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public void testDecodePartialSymbol() throws Http2Exception {
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byte[] buf = makeBuf(0x52, 0xBC, 0x30, 0xFF, 0xFF, 0xFF, 0xFF); // " pFA\x00", 31 bits of padding, a.k.a. EOS
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decode(buf);
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}
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private static byte[] makeBuf(int ... bytes) {
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byte[] buf = new byte[bytes.length];
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for (int i = 0; i < buf.length; i++) {
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buf[i] = (byte) bytes[i];
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}
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return buf;
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}
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private static void roundTrip(String s) throws Http2Exception {
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roundTrip(new HpackHuffmanEncoder(), s);
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}
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private static void roundTrip(HpackHuffmanEncoder encoder, String s)
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throws Http2Exception {
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roundTrip(encoder, s.getBytes());
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}
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private static void roundTrip(byte[] buf) throws Http2Exception {
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roundTrip(new HpackHuffmanEncoder(), buf);
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}
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private static void roundTrip(HpackHuffmanEncoder encoder, byte[] buf)
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throws Http2Exception {
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ByteBuf buffer = Unpooled.buffer();
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try {
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encoder.encode(buffer, new AsciiString(buf, false));
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byte[] bytes = new byte[buffer.readableBytes()];
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buffer.readBytes(bytes);
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byte[] actualBytes = decode(bytes);
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Assert.assertTrue(Arrays.equals(buf, actualBytes));
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} finally {
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buffer.release();
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}
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}
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private static byte[] decode(byte[] bytes) throws Http2Exception {
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ByteBuf buffer = Unpooled.wrappedBuffer(bytes);
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try {
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AsciiString decoded = HpackHuffmanDecoder.decode(buffer, buffer.readableBytes());
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Assert.assertFalse(buffer.isReadable());
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return decoded.toByteArray();
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} finally {
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buffer.release();
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}
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}
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}
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