273 lines
10 KiB
Java
273 lines
10 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 com.google.gson.FieldNamingPolicy;
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import com.google.gson.Gson;
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import com.google.gson.GsonBuilder;
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import com.google.gson.JsonDeserializationContext;
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import com.google.gson.JsonDeserializer;
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import com.google.gson.JsonElement;
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import com.google.gson.JsonObject;
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import com.google.gson.JsonParseException;
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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.internal.StringUtil;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.lang.reflect.Type;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import static io.netty.handler.codec.http2.Http2CodecUtil.DEFAULT_HEADER_LIST_SIZE;
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import static io.netty.handler.codec.http2.Http2CodecUtil.MAX_HEADER_LIST_SIZE;
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import static io.netty.handler.codec.http2.Http2TestUtil.newTestEncoder;
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final class HpackTestCase {
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private static final Gson GSON = new GsonBuilder()
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.setFieldNamingPolicy(FieldNamingPolicy.LOWER_CASE_WITH_UNDERSCORES)
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.registerTypeAdapter(HpackHeaderField.class, new HeaderFieldDeserializer())
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.create();
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int maxHeaderTableSize = -1;
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boolean sensitiveHeaders;
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List<HeaderBlock> headerBlocks;
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private HpackTestCase() {
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}
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static HpackTestCase load(InputStream is) {
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InputStreamReader r = new InputStreamReader(is);
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HpackTestCase hpackTestCase = GSON.fromJson(r, HpackTestCase.class);
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for (HeaderBlock headerBlock : hpackTestCase.headerBlocks) {
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headerBlock.encodedBytes = StringUtil.decodeHexDump(headerBlock.getEncodedStr());
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}
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return hpackTestCase;
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}
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void testCompress() throws Exception {
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HpackEncoder hpackEncoder = createEncoder();
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for (HeaderBlock headerBlock : headerBlocks) {
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byte[] actual =
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encode(hpackEncoder, headerBlock.getHeaders(), headerBlock.getMaxHeaderTableSize(),
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sensitiveHeaders);
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if (!Arrays.equals(actual, headerBlock.encodedBytes)) {
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throw new AssertionError(
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"\nEXPECTED:\n" + headerBlock.getEncodedStr() +
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"\nACTUAL:\n" + StringUtil.toHexString(actual));
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}
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List<HpackHeaderField> actualDynamicTable = new ArrayList<>();
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for (int index = 0; index < hpackEncoder.length(); index++) {
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actualDynamicTable.add(hpackEncoder.getHeaderField(index));
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}
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List<HpackHeaderField> expectedDynamicTable = headerBlock.getDynamicTable();
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if (!expectedDynamicTable.equals(actualDynamicTable)) {
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throw new AssertionError(
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"\nEXPECTED DYNAMIC TABLE:\n" + expectedDynamicTable +
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"\nACTUAL DYNAMIC TABLE:\n" + actualDynamicTable);
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}
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if (headerBlock.getTableSize() != hpackEncoder.size()) {
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throw new AssertionError(
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"\nEXPECTED TABLE SIZE: " + headerBlock.getTableSize() +
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"\n ACTUAL TABLE SIZE : " + hpackEncoder.size());
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}
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}
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}
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void testDecompress() throws Exception {
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HpackDecoder hpackDecoder = createDecoder();
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for (HeaderBlock headerBlock : headerBlocks) {
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List<HpackHeaderField> actualHeaders = decode(hpackDecoder, headerBlock.encodedBytes);
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List<HpackHeaderField> expectedHeaders = new ArrayList<>();
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for (HpackHeaderField h : headerBlock.getHeaders()) {
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expectedHeaders.add(new HpackHeaderField(h.name, h.value));
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}
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if (!expectedHeaders.equals(actualHeaders)) {
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throw new AssertionError(
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"\nEXPECTED:\n" + expectedHeaders +
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"\nACTUAL:\n" + actualHeaders);
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}
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List<HpackHeaderField> actualDynamicTable = new ArrayList<>();
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for (int index = 0; index < hpackDecoder.length(); index++) {
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actualDynamicTable.add(hpackDecoder.getHeaderField(index));
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}
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List<HpackHeaderField> expectedDynamicTable = headerBlock.getDynamicTable();
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if (!expectedDynamicTable.equals(actualDynamicTable)) {
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throw new AssertionError(
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"\nEXPECTED DYNAMIC TABLE:\n" + expectedDynamicTable +
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"\nACTUAL DYNAMIC TABLE:\n" + actualDynamicTable);
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}
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if (headerBlock.getTableSize() != hpackDecoder.size()) {
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throw new AssertionError(
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"\nEXPECTED TABLE SIZE: " + headerBlock.getTableSize() +
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"\n ACTUAL TABLE SIZE : " + hpackDecoder.size());
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}
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}
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}
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private HpackEncoder createEncoder() {
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int maxHeaderTableSize = this.maxHeaderTableSize;
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if (maxHeaderTableSize == -1) {
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maxHeaderTableSize = Integer.MAX_VALUE;
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}
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try {
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return newTestEncoder(true, MAX_HEADER_LIST_SIZE, maxHeaderTableSize);
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} catch (Http2Exception e) {
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throw new Error("invalid initial values!", e);
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}
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}
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private HpackDecoder createDecoder() {
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int maxHeaderTableSize = this.maxHeaderTableSize;
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if (maxHeaderTableSize == -1) {
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maxHeaderTableSize = Integer.MAX_VALUE;
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}
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return new HpackDecoder(DEFAULT_HEADER_LIST_SIZE, maxHeaderTableSize);
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}
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private static byte[] encode(HpackEncoder hpackEncoder, List<HpackHeaderField> headers, int maxHeaderTableSize,
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final boolean sensitive) throws Http2Exception {
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Http2Headers http2Headers = toHttp2Headers(headers);
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Http2HeadersEncoder.SensitivityDetector sensitivityDetector = (name, value) -> sensitive;
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ByteBuf buffer = Unpooled.buffer();
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try {
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if (maxHeaderTableSize != -1) {
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hpackEncoder.setMaxHeaderTableSize(buffer, maxHeaderTableSize);
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}
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hpackEncoder.encodeHeaders(3 /* randomly chosen */, buffer, http2Headers, sensitivityDetector);
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byte[] bytes = new byte[buffer.readableBytes()];
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buffer.readBytes(bytes);
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return bytes;
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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 Http2Headers toHttp2Headers(List<HpackHeaderField> inHeaders) {
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Http2Headers headers = new DefaultHttp2Headers(false);
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for (HpackHeaderField e : inHeaders) {
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headers.add(e.name, e.value);
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}
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return headers;
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}
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private static List<HpackHeaderField> decode(HpackDecoder hpackDecoder, byte[] expected) throws Exception {
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ByteBuf in = Unpooled.wrappedBuffer(expected);
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try {
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List<HpackHeaderField> headers = new ArrayList<>();
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TestHeaderListener listener = new TestHeaderListener(headers);
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hpackDecoder.decode(0, in, listener, true);
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return headers;
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} finally {
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in.release();
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}
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}
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private static String concat(List<String> l) {
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StringBuilder ret = new StringBuilder();
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for (String s : l) {
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ret.append(s);
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}
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return ret.toString();
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}
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static class HeaderBlock {
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private int maxHeaderTableSize = -1;
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private byte[] encodedBytes;
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private List<String> encoded;
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private List<HpackHeaderField> headers;
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private List<HpackHeaderField> dynamicTable;
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private int tableSize;
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private int getMaxHeaderTableSize() {
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return maxHeaderTableSize;
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}
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public String getEncodedStr() {
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return concat(encoded).replaceAll(" ", "");
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}
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public List<HpackHeaderField> getHeaders() {
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return headers;
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}
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public List<HpackHeaderField> getDynamicTable() {
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return dynamicTable;
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}
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public int getTableSize() {
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return tableSize;
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}
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}
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static class HeaderFieldDeserializer implements JsonDeserializer<HpackHeaderField> {
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@Override
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public HpackHeaderField deserialize(JsonElement json, Type typeOfT,
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JsonDeserializationContext context) {
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JsonObject jsonObject = json.getAsJsonObject();
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Set<Map.Entry<String, JsonElement>> entrySet = jsonObject.entrySet();
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if (entrySet.size() != 1) {
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throw new JsonParseException("JSON Object has multiple entries: " + entrySet);
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}
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Map.Entry<String, JsonElement> entry = entrySet.iterator().next();
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String name = entry.getKey();
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String value = entry.getValue().getAsString();
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return new HpackHeaderField(name, value);
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}
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}
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}
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