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| 1 | +/* |
| 2 | + * Copyright (c) 2015-2024 AsyncHttpClient Project. All rights reserved. |
| 3 | + * |
| 4 | + * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | + * you may not use this file except in compliance with the License. |
| 6 | + * You may obtain a copy of the License at |
| 7 | + * |
| 8 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | + * |
| 10 | + * Unless required by applicable law or agreed to in writing, software |
| 11 | + * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | + * See the License for the specific language governing permissions and |
| 14 | + * limitations under the License. |
| 15 | + */ |
| 16 | +package org.asynchttpclient; |
| 17 | + |
| 18 | +import com.aayushatharva.brotli4j.encoder.BrotliOutputStream; |
| 19 | +import com.aayushatharva.brotli4j.encoder.Encoder; |
| 20 | +import com.sun.net.httpserver.Headers; |
| 21 | +import com.sun.net.httpserver.HttpExchange; |
| 22 | +import com.sun.net.httpserver.HttpHandler; |
| 23 | +import com.sun.net.httpserver.HttpServer; |
| 24 | +import java.io.IOException; |
| 25 | +import java.io.OutputStream; |
| 26 | +import java.net.InetSocketAddress; |
| 27 | +import java.nio.charset.StandardCharsets; |
| 28 | +import java.util.Arrays; |
| 29 | +import java.util.List; |
| 30 | +import java.util.stream.Collectors; |
| 31 | +import java.util.zip.GZIPOutputStream; |
| 32 | +import org.junit.jupiter.api.AfterAll; |
| 33 | +import org.junit.jupiter.api.BeforeAll; |
| 34 | +import org.junit.jupiter.api.Test; |
| 35 | +import com.github.luben.zstd.Zstd; |
| 36 | + |
| 37 | +import static org.junit.jupiter.api.Assertions.assertEquals; |
| 38 | + |
| 39 | +public class AutomaticDecompressionTest { |
| 40 | + private static final String UNCOMPRESSED_PAYLOAD = "a".repeat(500); |
| 41 | + |
| 42 | + private static HttpServer HTTP_SERVER; |
| 43 | + |
| 44 | + private static AsyncHttpClient createClient() { |
| 45 | + AsyncHttpClientConfig config = new DefaultAsyncHttpClientConfig.Builder() |
| 46 | + .setEnableAutomaticDecompression(true) |
| 47 | + .setCompressionEnforced(true) |
| 48 | + .build(); |
| 49 | + return new DefaultAsyncHttpClient(config); |
| 50 | + } |
| 51 | + |
| 52 | + @BeforeAll |
| 53 | + static void setupServer() throws Exception { |
| 54 | + HTTP_SERVER = HttpServer.create(new InetSocketAddress(0), 0); |
| 55 | + |
| 56 | + HTTP_SERVER.createContext("/br").setHandler(new HttpHandler() { |
| 57 | + @Override |
| 58 | + public void handle(HttpExchange exchange) |
| 59 | + throws IOException { |
| 60 | + validateAcceptEncodingHeader(exchange); |
| 61 | + exchange.getResponseHeaders().set("Content-Encoding", "br"); |
| 62 | + exchange.sendResponseHeaders(200, 0); |
| 63 | + OutputStream out = exchange.getResponseBody(); |
| 64 | + Encoder.Parameters params = new Encoder.Parameters(); |
| 65 | + BrotliOutputStream brotliOutputStream = new BrotliOutputStream(out, params); |
| 66 | + brotliOutputStream.write(UNCOMPRESSED_PAYLOAD.getBytes(StandardCharsets.UTF_8)); |
| 67 | + brotliOutputStream.flush(); |
| 68 | + brotliOutputStream.close(); |
| 69 | + } |
| 70 | + }); |
| 71 | + |
| 72 | + HTTP_SERVER.createContext("/zstd").setHandler(new HttpHandler() { |
| 73 | + @Override |
| 74 | + public void handle(HttpExchange exchange) |
| 75 | + throws IOException { |
| 76 | + validateAcceptEncodingHeader(exchange); |
| 77 | + exchange.getResponseHeaders().set("Content-Encoding", "zstd"); |
| 78 | + byte[] compressedData = new byte[UNCOMPRESSED_PAYLOAD.length()]; |
| 79 | + long n = Zstd.compress(compressedData, UNCOMPRESSED_PAYLOAD.getBytes(StandardCharsets.UTF_8), 2, true); |
| 80 | + exchange.sendResponseHeaders(200, n); |
| 81 | + OutputStream out = exchange.getResponseBody(); |
| 82 | + out.write(compressedData, 0, (int) n); |
| 83 | + out.flush(); |
| 84 | + out.close(); |
| 85 | + } |
| 86 | + }); |
| 87 | + |
| 88 | + HTTP_SERVER.createContext("/gzip").setHandler(new HttpHandler() { |
| 89 | + @Override |
| 90 | + public void handle(HttpExchange exchange) |
| 91 | + throws IOException { |
| 92 | + validateAcceptEncodingHeader(exchange); |
| 93 | + exchange.getResponseHeaders().set("Content-Encoding", "gzip"); |
| 94 | + exchange.sendResponseHeaders(200, 0); |
| 95 | + OutputStream out = exchange.getResponseBody(); |
| 96 | + GZIPOutputStream gzip = new GZIPOutputStream(out); |
| 97 | + gzip.write(UNCOMPRESSED_PAYLOAD.getBytes(StandardCharsets.UTF_8)); |
| 98 | + gzip.flush(); |
| 99 | + gzip.close(); |
| 100 | + } |
| 101 | + }); |
| 102 | + |
| 103 | + HTTP_SERVER.start(); |
| 104 | + } |
| 105 | + |
| 106 | + private static void validateAcceptEncodingHeader(HttpExchange exchange) { |
| 107 | + Headers requestHeaders = exchange.getRequestHeaders(); |
| 108 | + List<String> acceptEncodingList = requestHeaders.get("Accept-Encoding") |
| 109 | + .stream() |
| 110 | + .flatMap(x -> Arrays.asList(x.split(",")).stream()) |
| 111 | + .collect(Collectors.toList()); |
| 112 | + assertEquals(List.of("gzip", "deflate", "br", "zstd"), acceptEncodingList); |
| 113 | + } |
| 114 | + |
| 115 | + @AfterAll |
| 116 | + static void stopServer() { |
| 117 | + if (HTTP_SERVER != null) { |
| 118 | + HTTP_SERVER.stop(0); |
| 119 | + } |
| 120 | + } |
| 121 | + |
| 122 | + @Test |
| 123 | + void zstd() throws Throwable { |
| 124 | + io.netty.handler.codec.compression.Zstd.ensureAvailability(); |
| 125 | + try (AsyncHttpClient client = createClient()) { |
| 126 | + Request request = new RequestBuilder("GET") |
| 127 | + .setUrl("http://localhost:" + HTTP_SERVER.getAddress().getPort() + "/zstd") |
| 128 | + .build(); |
| 129 | + Response response = client.executeRequest(request).get(); |
| 130 | + assertEquals(200, response.getStatusCode()); |
| 131 | + assertEquals(UNCOMPRESSED_PAYLOAD, response.getResponseBody()); |
| 132 | + } |
| 133 | + } |
| 134 | + |
| 135 | + @Test |
| 136 | + void brotli() throws Throwable { |
| 137 | + io.netty.handler.codec.compression.Brotli.ensureAvailability(); |
| 138 | + try (AsyncHttpClient client = createClient()) { |
| 139 | + Request request = new RequestBuilder("GET") |
| 140 | + .setUrl("http://localhost:" + HTTP_SERVER.getAddress().getPort() + "/br") |
| 141 | + .build(); |
| 142 | + Response response = client.executeRequest(request).get(); |
| 143 | + assertEquals(200, response.getStatusCode()); |
| 144 | + assertEquals(UNCOMPRESSED_PAYLOAD, response.getResponseBody()); |
| 145 | + } |
| 146 | + } |
| 147 | + |
| 148 | + @Test |
| 149 | + void gzip() throws Throwable { |
| 150 | + try (AsyncHttpClient client = createClient()) { |
| 151 | + Request request = new RequestBuilder("GET") |
| 152 | + .setUrl("http://localhost:" + HTTP_SERVER.getAddress().getPort() + "/gzip") |
| 153 | + .build(); |
| 154 | + Response response = client.executeRequest(request).get(); |
| 155 | + assertEquals(200, response.getStatusCode()); |
| 156 | + assertEquals(UNCOMPRESSED_PAYLOAD, response.getResponseBody()); |
| 157 | + } |
| 158 | + } |
| 159 | + |
| 160 | + |
| 161 | +} |
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