russell@unturf.com
0a580b313d
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
381 lines
15 KiB
Java
381 lines
15 KiB
Java
/*
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* Copyright (c) 2017, 2026, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @summary Checks correct handling of Publishers that call onComplete without demand
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* @library /test/lib /test/jdk/java/net/httpclient/lib
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* @build jdk.httpclient.test.lib.http2.Http2TestServer jdk.test.lib.net.SimpleSSLContext
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* @run junit/othervm CustomRequestPublisher
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*/
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import java.net.InetAddress;
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import java.net.InetSocketAddress;
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import java.net.URI;
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import java.net.http.HttpClient.Builder;
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import java.nio.ByteBuffer;
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import java.util.Arrays;
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import java.util.Optional;
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import java.util.concurrent.CompletableFuture;
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import java.util.concurrent.Flow;
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import java.util.concurrent.atomic.AtomicBoolean;
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import java.util.concurrent.atomic.AtomicInteger;
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import java.util.concurrent.atomic.AtomicLong;
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import java.util.function.Supplier;
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import java.util.stream.Collectors;
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import javax.net.ssl.SSLContext;
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import javax.net.ssl.SSLSession;
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import java.net.http.HttpClient;
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import java.net.http.HttpRequest;
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import java.net.http.HttpResponse;
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import jdk.httpclient.test.lib.common.HttpServerAdapters;
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import jdk.test.lib.net.SimpleSSLContext;
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import static java.lang.System.out;
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import static java.net.http.HttpClient.Version.HTTP_1_1;
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import static java.net.http.HttpClient.Version.HTTP_2;
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import static java.net.http.HttpClient.Version.HTTP_3;
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import static java.net.http.HttpOption.H3_DISCOVERY;
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import static java.nio.charset.StandardCharsets.US_ASCII;
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import static java.net.http.HttpResponse.BodyHandlers.ofString;
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import org.junit.jupiter.api.AfterAll;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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import static org.junit.jupiter.api.Assertions.assertNotEquals;
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import static org.junit.jupiter.api.Assertions.assertTrue;
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import static org.junit.jupiter.api.Assertions.fail;
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import org.junit.jupiter.api.BeforeAll;
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import org.junit.jupiter.params.ParameterizedTest;
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import org.junit.jupiter.params.provider.MethodSource;
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public class CustomRequestPublisher implements HttpServerAdapters {
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private static final SSLContext sslContext = SimpleSSLContext.findSSLContext();
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private static HttpTestServer httpTestServer; // HTTP/1.1 [ 4 servers ]
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private static HttpTestServer httpsTestServer; // HTTPS/1.1
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private static HttpTestServer http2TestServer; // HTTP/2 ( h2c )
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private static HttpTestServer https2TestServer; // HTTP/2 ( h2 )
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private static HttpTestServer http3TestServer; // HTTP/3 ( h3 )
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private static String httpURI;
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private static String httpsURI;
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private static String http2URI;
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private static String https2URI;
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private static String http3URI;
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public static Object[][] variants() {
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Supplier<BodyPublisher> fixedSupplier = () -> new FixedLengthBodyPublisher();
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Supplier<BodyPublisher> unknownSupplier = () -> new UnknownLengthBodyPublisher();
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return new Object[][]{
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{ httpURI, fixedSupplier, false },
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{ httpURI, unknownSupplier, false },
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{ httpsURI, fixedSupplier, false },
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{ httpsURI, unknownSupplier, false },
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{ http2URI, fixedSupplier, false },
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{ http2URI, unknownSupplier, false },
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{ https2URI, fixedSupplier, false,},
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{ https2URI, unknownSupplier, false },
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{ httpURI, fixedSupplier, true },
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{ httpURI, unknownSupplier, true },
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{ httpsURI, fixedSupplier, true },
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{ httpsURI, unknownSupplier, true },
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{ http2URI, fixedSupplier, true },
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{ http2URI, unknownSupplier, true },
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{ https2URI, fixedSupplier, true,},
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{ https2URI, unknownSupplier, true },
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{ http3URI, fixedSupplier, true,}, // always use same client with h3
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{ http3URI, unknownSupplier, true }, // always use same client with h3
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};
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}
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static final int ITERATION_COUNT = 10;
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/** Asserts HTTP Version, and SSLSession presence when applicable. */
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static void assertVersionAndSession(int step, HttpResponse response, String uri) {
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if (uri.contains("http2") || uri.contains("https2")) {
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assertEquals(HTTP_2, response.version());
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} else if (uri.contains("http1") || uri.contains("https1")) {
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assertEquals(HTTP_1_1, response.version());
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} else if (uri.contains("http3")) {
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if (step == 0) assertNotEquals(HTTP_1_1, response.version());
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else assertEquals(HTTP_3, response.version(),
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"unexpected response version on step " + step);
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} else {
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fail("Unknown HTTP version in test for: " + uri);
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}
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Optional<SSLSession> ssl = response.sslSession();
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if (uri.contains("https")) {
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assertTrue(ssl.isPresent(),
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"Expected optional containing SSLSession but got:" + ssl);
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try {
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ssl.get().invalidate();
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fail("SSLSession is not immutable: " + ssl.get());
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} catch (UnsupportedOperationException expected) { }
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} else {
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assertTrue(!ssl.isPresent(), "UNEXPECTED non-empty optional:" + ssl);
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}
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}
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HttpClient.Builder newHttpClientBuilder(String uri) {
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HttpClient.Builder builder;
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if (uri.contains("/http3/")) {
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builder = newClientBuilderForH3();
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// ensure that the preferred version for the client
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// is HTTP/3
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builder.version(HTTP_3);
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} else builder = HttpClient.newBuilder();
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return builder.proxy(Builder.NO_PROXY);
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}
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HttpRequest.Builder newHttpRequestBuilder(String uri) {
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var builder = HttpRequest.newBuilder(URI.create(uri));
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if (uri.contains("/http3/") && !http3TestServer.supportsH3DirectConnection()) {
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// Ensure we don't attempt to connect to a
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// potentially different server if HTTP/3 endpoint and
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// HTTP/2 endpoint are not on the same port
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builder.setOption(H3_DISCOVERY, http3TestServer.h3DiscoveryConfig());
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}
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return builder;
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}
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@ParameterizedTest
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@MethodSource("variants")
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void test(String uri, Supplier<BodyPublisher> bpSupplier, boolean sameClient)
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throws Exception
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{
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HttpClient client = null;
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for (int i=0; i< ITERATION_COUNT; i++) {
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if (!sameClient || client == null)
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client = newHttpClientBuilder(uri).sslContext(sslContext).build();
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BodyPublisher bodyPublisher = bpSupplier.get();
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HttpRequest request = newHttpRequestBuilder(uri)
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.POST(bodyPublisher)
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.build();
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HttpResponse<String> resp = client.send(request, ofString());
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out.println("Got response: " + resp);
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out.println("Got body: " + resp.body());
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assertTrue(resp.statusCode() == 200,
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"Expected 200, got:" + resp.statusCode());
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assertEquals(bodyPublisher.bodyAsString(), resp.body());
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assertVersionAndSession(i, resp, uri);
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}
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}
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@ParameterizedTest
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@MethodSource("variants")
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void testAsync(String uri, Supplier<BodyPublisher> bpSupplier, boolean sameClient)
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throws Exception
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{
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HttpClient client = null;
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for (int i=0; i< ITERATION_COUNT; i++) {
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if (!sameClient || client == null)
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client = newHttpClientBuilder(uri).sslContext(sslContext).build();
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BodyPublisher bodyPublisher = bpSupplier.get();
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HttpRequest request = newHttpRequestBuilder(uri)
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.POST(bodyPublisher)
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.build();
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CompletableFuture<HttpResponse<String>> cf = client.sendAsync(request, ofString());
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HttpResponse<String> resp = cf.get();
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out.println("Got response: " + resp);
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out.println("Got body: " + resp.body());
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assertTrue(resp.statusCode() == 200,
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"Expected 200, got:" + resp.statusCode());
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assertEquals(bodyPublisher.bodyAsString(), resp.body());
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assertVersionAndSession(0, resp, uri);
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}
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}
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/** A Publisher that returns an UNKNOWN content length. */
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static class UnknownLengthBodyPublisher extends BodyPublisher {
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@Override
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public long contentLength() {
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return -1; // unknown
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}
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}
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/** A Publisher that returns a FIXED content length. */
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static class FixedLengthBodyPublisher extends BodyPublisher {
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final int LENGTH = Arrays.stream(BODY)
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.mapToInt(s-> s.getBytes(US_ASCII).length)
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.sum();
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@Override
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public long contentLength() {
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return LENGTH;
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}
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}
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/**
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* A Publisher that ( quite correctly ) invokes onComplete, after the last
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* item has been published, even without any outstanding demand.
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*/
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static abstract class BodyPublisher implements HttpRequest.BodyPublisher {
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String[] BODY = new String[]
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{ "Say ", "Hello ", "To ", "My ", "Little ", "Friend" };
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protected volatile Flow.Subscriber subscriber;
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@Override
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public void subscribe(Flow.Subscriber<? super ByteBuffer> subscriber) {
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this.subscriber = subscriber;
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subscriber.onSubscribe(new InternalSubscription());
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}
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@Override
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public abstract long contentLength();
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String bodyAsString() {
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return Arrays.stream(BODY).collect(Collectors.joining());
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}
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class InternalSubscription implements Flow.Subscription {
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private final AtomicLong demand = new AtomicLong();
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private final AtomicBoolean cancelled = new AtomicBoolean();
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private volatile int position;
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private static final int IDLE = 1;
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private static final int PUSHING = 2;
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private static final int AGAIN = 4;
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private final AtomicInteger state = new AtomicInteger(IDLE);
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@Override
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public void request(long n) {
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if (n <= 0L) {
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subscriber.onError(new IllegalArgumentException(
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"non-positive subscription request"));
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return;
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}
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if (cancelled.get()) {
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return;
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}
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while (true) {
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long prev = demand.get(), d;
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if ((d = prev + n) < prev) // saturate
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d = Long.MAX_VALUE;
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if (demand.compareAndSet(prev, d))
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break;
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}
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while (true) {
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int s = state.get();
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if (s == IDLE) {
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if (state.compareAndSet(IDLE, PUSHING)) {
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while (true) {
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push();
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if (state.compareAndSet(PUSHING, IDLE))
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return;
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else if (state.compareAndSet(AGAIN, PUSHING))
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continue;
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}
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}
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} else if (s == PUSHING) {
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if (state.compareAndSet(PUSHING, AGAIN))
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return;
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} else if (s == AGAIN){
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// do nothing, the pusher will already rerun
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return;
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} else {
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throw new AssertionError("Unknown state:" + s);
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}
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}
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}
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private void push() {
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long prev;
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while ((prev = demand.get()) > 0) {
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if (!demand.compareAndSet(prev, prev -1))
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continue;
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int index = position;
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if (index < BODY.length) {
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position++;
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subscriber.onNext(ByteBuffer.wrap(BODY[index].getBytes(US_ASCII)));
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}
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}
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if (position == BODY.length && !cancelled.get()) {
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cancelled.set(true);
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subscriber.onComplete(); // NOTE: onComplete without demand
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}
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}
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@Override
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public void cancel() {
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if (cancelled.compareAndExchange(false, true))
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return; // already cancelled
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}
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}
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}
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@BeforeAll
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public static void setup() throws Exception {
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InetSocketAddress sa = new InetSocketAddress(InetAddress.getLoopbackAddress(), 0);
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httpTestServer = HttpTestServer.create(HTTP_1_1);
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httpTestServer.addHandler(new HttpTestEchoHandler(), "/http1/echo");
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httpURI = "http://" + httpTestServer.serverAuthority() + "/http1/echo";
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httpsTestServer = HttpTestServer.create(HTTP_1_1, sslContext);
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httpsTestServer.addHandler(new HttpTestEchoHandler(), "/https1/echo");
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httpsURI = "https://" + httpsTestServer.serverAuthority() + "/https1/echo";
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http2TestServer = HttpTestServer.create(HTTP_2);
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http2TestServer.addHandler(new HttpTestEchoHandler(), "/http2/echo");
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http2URI = "http://" + http2TestServer.serverAuthority() + "/http2/echo";
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https2TestServer = HttpTestServer.create(HTTP_2, sslContext);
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https2TestServer.addHandler(new HttpTestEchoHandler(), "/https2/echo");
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https2URI = "https://" + https2TestServer.serverAuthority() + "/https2/echo";
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http3TestServer = HttpTestServer.create(HTTP_3, sslContext);
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http3TestServer.addHandler(new HttpTestEchoHandler(), "/http3/echo");
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http3URI = "https://" + http3TestServer.serverAuthority() + "/http3/echo";
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httpTestServer.start();
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httpsTestServer.start();
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http2TestServer.start();
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https2TestServer.start();
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http3TestServer.start();
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}
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@AfterAll
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public static void teardown() throws Exception {
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httpTestServer.stop();
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httpsTestServer.stop();
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http2TestServer.stop();
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https2TestServer.stop();
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http3TestServer.stop();
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}
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}
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