jdk/test/jdk/java/net/httpclient/CancelledResponse2.java
2026-02-24 13:57:01 +00:00

314 lines
13 KiB
Java

/*
* Copyright (c) 2023, 2026, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import jdk.httpclient.test.lib.common.HttpServerAdapters;
import jdk.internal.net.http.common.OperationTrackers.Tracker;
import jdk.test.lib.RandomFactory;
import jdk.test.lib.net.SimpleSSLContext;
import javax.net.ssl.SSLContext;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpClient.Version;
import java.net.http.HttpRequest;
import java.net.http.HttpOption.Http3DiscoveryMode;
import java.net.http.HttpResponse;
import java.net.http.HttpResponse.BodyHandler;
import java.nio.ByteBuffer;
import java.nio.charset.StandardCharsets;
import java.util.List;
import java.util.Random;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.CompletionStage;
import java.util.concurrent.Flow;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicInteger;
import static java.lang.System.out;
import static java.net.http.HttpClient.Version.HTTP_2;
import static java.net.http.HttpClient.Version.HTTP_3;
import static java.net.http.HttpOption.Http3DiscoveryMode.ALT_SVC;
import static java.net.http.HttpOption.Http3DiscoveryMode.HTTP_3_URI_ONLY;
import static java.net.http.HttpOption.H3_DISCOVERY;
import org.junit.jupiter.api.AfterAll;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertTrue;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.MethodSource;
/*
* @test
* @library /test/lib /test/jdk/java/net/httpclient/lib
* @build jdk.test.lib.net.SimpleSSLContext
* @compile ReferenceTracker.java
* @run junit/othervm -Djdk.internal.httpclient.debug=true CancelledResponse2
*/
// -Djdk.internal.httpclient.debug=true
public class CancelledResponse2 implements HttpServerAdapters {
private static final ReferenceTracker TRACKER = ReferenceTracker.INSTANCE;
private static final Random RANDOM = RandomFactory.getRandom();
private static final int MAX_CLIENT_DELAY = 160;
private static HttpTestServer h2TestServer;
private static URI h2TestServerURI;
private static URI h2h3TestServerURI;
private static URI h2h3HeadTestServerURI;
private static URI h3TestServerURI;
private static HttpTestServer h2h3TestServer;
private static HttpTestServer h3TestServer;
private static final SSLContext sslContext = SimpleSSLContext.findSSLContext();
public static Object[][] positive() {
return new Object[][]{
{ HTTP_2, null, h2TestServerURI },
{ HTTP_3, null, h2h3TestServerURI },
{ HTTP_3, HTTP_3_URI_ONLY, h3TestServerURI },
};
}
private static void delay() {
int delay = RANDOM.nextInt(MAX_CLIENT_DELAY);
try {
System.out.println("client delay: " + delay);
Thread.sleep(delay);
} catch (InterruptedException x) {
out.println("Unexpected exception: " + x);
}
}
@ParameterizedTest
@MethodSource("positive")
public void test(Version version, Http3DiscoveryMode config, URI uri) throws Exception {
for (int i = 0; i < 5; i++) {
HttpClient httpClient = newClientBuilderForH3().sslContext(sslContext).version(version).build();
Http3DiscoveryMode reqConfig = null;
if (version.equals(HTTP_3)) {
if (config != null) {
reqConfig = (config.equals(HTTP_3_URI_ONLY)) ? HTTP_3_URI_ONLY : ALT_SVC;
}
// if config is null, we are talking to the H2H3 server, which may
// not support direct connection, in which case we should send a headRequest
if ((config == null && !h2h3TestServer.supportsH3DirectConnection())
|| (reqConfig != null && reqConfig.equals(ALT_SVC))) {
headRequest(httpClient);
}
}
HttpRequest httpRequest = HttpRequest.newBuilder(uri)
.version(version)
.setOption(H3_DISCOVERY, reqConfig)
.GET()
.build();
AtomicBoolean cancelled = new AtomicBoolean();
BodyHandler<String> bh = ofString(response, cancelled);
CompletableFuture<HttpResponse<String>> cf = httpClient.sendAsync(httpRequest, bh);
try {
cf.get();
} catch (Exception e) {
e.printStackTrace();
assertTrue(e.getCause() instanceof IOException, "HTTP/2 & HTTP/3 should cancel with an IOException when the Subscription is cancelled.");
}
assertTrue(cf.isCompletedExceptionally());
assertTrue(cancelled.get());
Tracker tracker = TRACKER.getTracker(httpClient);
httpClient = null;
var error = TRACKER.check(tracker, 5000);
if (error != null) throw error;
}
}
void headRequest(HttpClient client) throws Exception {
HttpRequest request = HttpRequest.newBuilder(h2h3HeadTestServerURI)
.version(HTTP_2)
.HEAD()
.build();
var resp = client.send(request, HttpResponse.BodyHandlers.discarding());
assertEquals(200, resp.statusCode());
}
@BeforeAll
public static void setup() throws IOException {
h2TestServer = HttpTestServer.create(HTTP_2, sslContext);
h2TestServer.addHandler(new CancelledResponseHandler(), "/h2");
h2TestServerURI = URI.create("https://" + h2TestServer.serverAuthority() + "/h2");
h2h3TestServer = HttpTestServer.create(HTTP_3, sslContext);
h2h3TestServer.addHandler(new CancelledResponseHandler(), "/h2h3");
h2h3TestServerURI = URI.create("https://" + h2h3TestServer.serverAuthority() + "/h2h3");
h2h3TestServer.addHandler(new HttpHeadOrGetHandler(), "/h2h3/head");
h2h3HeadTestServerURI = URI.create("https://" + h2h3TestServer.serverAuthority() + "/h2h3/head");
h3TestServer = HttpTestServer.create(HTTP_3_URI_ONLY, sslContext);
h3TestServer.addHandler(new CancelledResponseHandler(), "/h3");
h3TestServerURI = URI.create("https://" + h3TestServer.serverAuthority() + "/h3");
h2TestServer.start();
h2h3TestServer.start();
h3TestServer.start();
}
@AfterAll
public static void teardown() {
h2TestServer.stop();
h2h3TestServer.stop();
h3TestServer.stop();
}
BodyHandler<String> ofString(String expected, AtomicBoolean cancelled) {
return new CancellingHandler(expected, cancelled);
}
static class CancelledResponseHandler implements HttpTestHandler {
@Override
public void handle(HttpTestExchange t) throws IOException {
byte[] resp = response.getBytes(StandardCharsets.UTF_8);
t.sendResponseHeaders(200, resp.length);
System.err.println(resp.length);
try (InputStream is = t.getRequestBody();
OutputStream os = t.getResponseBody()) {
for (byte b : resp) {
// This can be used to verify that varying amounts of the response data are sent.
System.err.print((char) b);
os.write(b);
os.flush();
try {
Thread.sleep(1);
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
}
}
}
}
static final String response = "Lorem ipsum dolor sit amet consectetur adipiscing elit, sed do eiusmod tempor quis" +
" nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.";
record CancellingHandler(String expected, AtomicBoolean cancelled) implements BodyHandler<String> {
@Override
public HttpResponse.BodySubscriber<String> apply(HttpResponse.ResponseInfo rinfo) {
assert !cancelled.get();
return new CancellingBodySubscriber(expected, cancelled);
}
}
static class CancellingBodySubscriber implements HttpResponse.BodySubscriber<String> {
private final String expected;
private final CompletableFuture<String> result;
private Flow.Subscription subscription;
final AtomicInteger index = new AtomicInteger();
final AtomicBoolean cancelled;
CancellingBodySubscriber(String expected, AtomicBoolean cancelled) {
this.cancelled = cancelled;
this.expected = expected;
result = new CompletableFuture<>();
}
@Override
public CompletionStage<String> getBody() {
return result;
}
@Override
public void onSubscribe(Flow.Subscription subscription) {
this.subscription = subscription;
subscription.request(1);
}
@Override
public void onNext(List<ByteBuffer> item) {
//if (result.isDone())
// Max Delay is 180ms as there is 160 characters in response which gives at least 160ms in some test cases and
// allows a response to complete fully with a lee-way of 20ms in other cases. Otherwise, response body is
// usually partial. Each character is written by the server handler with a 1ms delay.
delay();
for (ByteBuffer b : item) {
while (b.hasRemaining() && !result.isDone()) {
int i = index.getAndIncrement();
char at = expected.charAt(i);
byte[] data = new byte[b.remaining()];
b.get(data); // we know that the server writes 1 char
String s = new String(data);
char c = s.charAt(0);
System.err.print(c);
if (c != at) {
Throwable x = new IllegalStateException("char at "
+ i + " is '" + c + "' expected '"
+ at + "' for \"" + expected +"\"");
out.println("unexpected char received, cancelling");
subscription.cancel();
result.completeExceptionally(x);
return;
}
}
System.err.println();
}
if (index.get() > 0 && !result.isDone()) {
// we should complete the result here, but let's
// see if we get something back...
out.println("Cancelling subscription after reading " + index.get());
cancelled.set(true);
subscription.cancel();
result.completeExceptionally(new CancelException());
return;
}
if (!result.isDone()) {
out.println("requesting 1 more");
subscription.request(1);
}
}
@Override
public void onError(Throwable throwable) {
result.completeExceptionally(throwable);
}
@Override
public void onComplete() {
int len = index.get();
if (len == expected.length()) {
result.complete(expected);
} else {
Throwable x = new IllegalStateException("received only "
+ len + " chars, expected " + expected.length()
+ " for \"" + expected +"\"");
result.completeExceptionally(x);
}
}
}
static class CancelException extends IOException {
}
}