bd6152f596
Reviewed-by: jpai
383 lines
16 KiB
Java
383 lines
16 KiB
Java
/*
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* Copyright (c) 2024, 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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* @bug 8342075 8343855
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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 testng/othervm -Djdk.internal.httpclient.debug=true
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* -Djdk.httpclient.connectionWindowSize=65535
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* -Djdk.httpclient.windowsize=16384
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* StreamFlowControlTest
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*/
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.net.ProtocolException;
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import java.net.URI;
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import java.net.http.HttpClient;
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import java.net.http.HttpHeaders;
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import java.net.http.HttpRequest;
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import java.net.http.HttpResponse;
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import java.net.http.HttpResponse.BodyHandlers;
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import java.nio.charset.StandardCharsets;
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import java.util.Arrays;
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import java.util.concurrent.CompletableFuture;
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import java.util.concurrent.ConcurrentHashMap;
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import java.util.concurrent.ExecutionException;
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import java.util.concurrent.atomic.AtomicInteger;
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import java.util.function.Consumer;
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import javax.net.ssl.SSLContext;
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import javax.net.ssl.SSLSession;
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import jdk.httpclient.test.lib.common.HttpServerAdapters.HttpHeadOrGetHandler;
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import jdk.httpclient.test.lib.common.HttpServerAdapters.HttpTestServer;
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import jdk.httpclient.test.lib.http2.BodyOutputStream;
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import jdk.httpclient.test.lib.http2.Http2Handler;
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import jdk.httpclient.test.lib.http2.Http2TestExchange;
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import jdk.httpclient.test.lib.http2.Http2TestExchangeImpl;
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import jdk.httpclient.test.lib.http2.Http2TestServer;
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import jdk.httpclient.test.lib.http2.Http2TestServerConnection;
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import jdk.internal.net.http.common.HttpHeadersBuilder;
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import jdk.internal.net.http.frame.SettingsFrame;
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import jdk.test.lib.Utils;
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import jdk.test.lib.net.SimpleSSLContext;
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import org.testng.annotations.AfterTest;
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import org.testng.annotations.BeforeTest;
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import org.testng.annotations.DataProvider;
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import org.testng.annotations.Test;
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import static java.util.concurrent.TimeUnit.NANOSECONDS;
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import static org.testng.Assert.assertEquals;
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import static org.testng.Assert.fail;
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public class StreamFlowControlTest {
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SSLContext sslContext;
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HttpTestServer http2TestServer; // HTTP/2 ( h2c )
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HttpTestServer https2TestServer; // HTTP/2 ( h2 )
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String http2URI;
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String https2URI;
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final AtomicInteger reqid = new AtomicInteger();
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@DataProvider(name = "variants")
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public Object[][] variants() {
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return new Object[][] {
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{ http2URI, false },
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{ https2URI, false },
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{ http2URI, true },
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{ https2URI, true },
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};
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}
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static void sleep(long wait) throws InterruptedException {
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if (wait <= 0) return;
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long remaining = Utils.adjustTimeout(wait);
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long start = System.nanoTime();
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while (remaining > 0) {
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Thread.sleep(remaining);
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long end = System.nanoTime();
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remaining = remaining - NANOSECONDS.toMillis(end - start);
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}
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System.out.printf("Waited %s ms%n",
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NANOSECONDS.toMillis(System.nanoTime() - start));
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}
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@Test(dataProvider = "variants")
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void test(String uri,
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boolean sameClient)
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throws Exception
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{
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System.out.printf("%ntesting test(%s, %s)%n", uri, sameClient);
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ConcurrentHashMap<String, CompletableFuture<String>> responseSent = new ConcurrentHashMap<>();
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FCHttp2TestExchange.setResponseSentCB((s) -> responseSent.get(s).complete(s));
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HttpClient client = null;
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try {
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int max = sameClient ? 10 : 3;
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String label = null;
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for (int i = 0; i < max; i++) {
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if (!sameClient || client == null)
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client = HttpClient.newBuilder().sslContext(sslContext).build();
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String query = "reqId=" + reqid.incrementAndGet();
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URI uriWithQuery = URI.create(uri + "?" + query);
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CompletableFuture<String> sent = new CompletableFuture<>();
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responseSent.put(query, sent);
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HttpRequest request = HttpRequest.newBuilder(uriWithQuery)
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.GET()
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.build();
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System.out.println("\nSending request:" + uriWithQuery);
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final HttpClient cc = client;
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try {
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HttpResponse<InputStream> response = cc.send(request, BodyHandlers.ofInputStream());
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if (sameClient) {
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String key = response.headers().firstValue("X-Connection-Key").get();
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if (label == null) label = key;
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assertEquals(key, label, "Unexpected key for " + query);
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}
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sent.join();
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// we have to pull to get the exception, but slow enough
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// so that DataFrames are buffered up to the point that
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// the window is exceeded...
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long wait = uri.startsWith("https://") ? 800 : 350;
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try (InputStream is = response.body()) {
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sleep(wait);
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is.readAllBytes();
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}
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// we could fail here if we haven't waited long enough
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fail("Expected exception, got :" + response + ", should sleep time be raised?");
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} catch (IOException ioe) {
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System.out.println("Got EXPECTED: " + ioe);
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assertDetailMessage(ioe, i);
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} finally {
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if (!sameClient && client != null) {
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client.close();
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client = null;
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}
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}
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}
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} finally {
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if (sameClient && client != null) client.close();
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}
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}
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@Test(dataProvider = "variants")
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void testAsync(String uri,
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boolean sameClient)
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{
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System.out.printf("%ntesting testAsync(%s, %s)%n", uri, sameClient);
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ConcurrentHashMap<String, CompletableFuture<String>> responseSent = new ConcurrentHashMap<>();
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FCHttp2TestExchange.setResponseSentCB((s) -> responseSent.get(s).complete(s));
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HttpClient client = null;
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try {
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int max = sameClient ? 5 : 3;
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String label = null;
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for (int i = 0; i < max; i++) {
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if (!sameClient || client == null)
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client = HttpClient.newBuilder().sslContext(sslContext).build();
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String query = "reqId=" + reqid.incrementAndGet();
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URI uriWithQuery = URI.create(uri + "?" + query);
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CompletableFuture<String> sent = new CompletableFuture<>();
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responseSent.put(query, sent);
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HttpRequest request = HttpRequest.newBuilder(uriWithQuery)
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.GET()
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.build();
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System.out.println("\nSending request:" + uriWithQuery);
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final HttpClient cc = client;
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Throwable t = null;
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try {
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HttpResponse<InputStream> response = cc.sendAsync(request, BodyHandlers.ofInputStream()).get();
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if (sameClient) {
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String key = response.headers().firstValue("X-Connection-Key").get();
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if (label == null) label = key;
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assertEquals(key, label, "Unexpected key for " + query);
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}
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sent.join();
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long wait = uri.startsWith("https://") ? 800 : 350;
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try (InputStream is = response.body()) {
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sleep(wait);
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is.readAllBytes();
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}
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// we could fail here if we haven't waited long enough
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fail("Expected exception, got :" + response + ", should sleep time be raised?");
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} catch (Throwable t0) {
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System.out.println("Got EXPECTED: " + t0);
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if (t0 instanceof ExecutionException) {
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t0 = t0.getCause();
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}
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t = t0;
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} finally {
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if (!sameClient && client != null) {
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client.close();
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client = null;
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}
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}
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assertDetailMessage(t, i);
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}
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} finally {
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if (sameClient && client != null) client.close();
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}
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}
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// Assertions based on implementation specific detail messages. Keep in
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// sync with implementation.
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static void assertDetailMessage(Throwable throwable, int iterationIndex) {
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try {
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Throwable cause = throwable;
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while (cause != null) {
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if (cause instanceof ProtocolException) {
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if (cause.getMessage().matches("stream [0-9]+ flow control window exceeded")) {
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System.out.println("Found expected exception: " + cause);
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return;
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}
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}
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cause = cause.getCause();
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}
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throw new AssertionError(
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"ProtocolException(\"stream X flow control window exceeded\") not found",
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throwable);
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} catch (AssertionError e) {
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System.out.println("Exception does not match expectation: " + throwable);
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throwable.printStackTrace(System.out);
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throw e;
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}
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}
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@BeforeTest
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public void setup() throws Exception {
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sslContext = new SimpleSSLContext().get();
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if (sslContext == null)
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throw new AssertionError("Unexpected null sslContext");
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var http2TestServer = new Http2TestServer("localhost", false, 0);
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http2TestServer.addHandler(new Http2TestHandler(), "/http2/");
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this.http2TestServer = HttpTestServer.of(http2TestServer);
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http2URI = "http://" + this.http2TestServer.serverAuthority() + "/http2/x";
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var https2TestServer = new Http2TestServer("localhost", true, sslContext);
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https2TestServer.addHandler(new Http2TestHandler(), "/https2/");
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this.https2TestServer = HttpTestServer.of(https2TestServer);
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this.https2TestServer.addHandler(new HttpHeadOrGetHandler(), "/https2/head/");
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https2URI = "https://" + this.https2TestServer.serverAuthority() + "/https2/x";
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String h2Head = "https://" + this.https2TestServer.serverAuthority() + "/https2/head/z";
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// Override the default exchange supplier with a custom one to enable
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// particular test scenarios
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http2TestServer.setExchangeSupplier(FCHttp2TestExchange::new);
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https2TestServer.setExchangeSupplier(FCHttp2TestExchange::new);
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this.http2TestServer.start();
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this.https2TestServer.start();
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// warmup to eliminate delay due to SSL class loading and initialization.
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try (var client = HttpClient.newBuilder().sslContext(sslContext).build()) {
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var request = HttpRequest.newBuilder(URI.create(h2Head)).HEAD().build();
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var resp = client.send(request, BodyHandlers.discarding());
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assertEquals(resp.statusCode(), 200);
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}
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}
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@AfterTest
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public void teardown() throws Exception {
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http2TestServer.stop();
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https2TestServer.stop();
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}
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static class Http2TestHandler implements Http2Handler {
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@Override
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public void handle(Http2TestExchange t) throws IOException {
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String query = t.getRequestURI().getRawQuery();
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try (InputStream is = t.getRequestBody();
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OutputStream os = t.getResponseBody()) {
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byte[] bytes = is.readAllBytes();
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if (bytes.length != 0) {
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System.out.println("Server " + t.getLocalAddress() + " received:\n"
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+ t.getRequestURI() + ": " + new String(bytes, StandardCharsets.UTF_8));
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} else {
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System.out.println("No request body for " + t.getRequestMethod());
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}
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t.getResponseHeaders().setHeader("X-Connection-Key", t.getConnectionKey());
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if (bytes.length == 0) {
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bytes = "no request body!"
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.repeat(100).getBytes(StandardCharsets.UTF_8);
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}
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int window = Integer.getInteger("jdk.httpclient.windowsize", 2 * 16 * 1024);
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final int maxChunkSize;
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if (t instanceof FCHttp2TestExchange fct) {
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maxChunkSize = Math.min(window, fct.conn.getMaxFrameSize());
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} else {
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maxChunkSize = Math.min(window, SettingsFrame.MAX_FRAME_SIZE);
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}
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byte[] resp = bytes.length <= maxChunkSize
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? bytes
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: Arrays.copyOfRange(bytes, 0, maxChunkSize);
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int max = (window / resp.length) + 2;
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// send in chunks
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t.sendResponseHeaders(200, 0);
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for (int i = 0; i <= max; i++) {
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if (t instanceof FCHttp2TestExchange fct) {
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try {
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// we don't wait for the stream window, but we want
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// to wait for the connection window
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fct.conn.obtainConnectionWindow(resp.length);
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} catch (InterruptedException ie) {
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// ignore and continue...
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}
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}
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try {
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((BodyOutputStream) os).writeUncontrolled(resp, 0, resp.length);
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} catch (IOException x) {
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if (t instanceof FCHttp2TestExchange fct) {
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fct.conn.updateConnectionWindow(resp.length);
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}
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}
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}
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} finally {
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if (t instanceof FCHttp2TestExchange fct) {
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fct.responseSent(query);
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} else {
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fail("Exchange is not %s but %s"
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.formatted(FCHttp2TestExchange.class.getName(), t.getClass().getName()));
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}
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}
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}
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}
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// A custom Http2TestExchangeImpl that overrides sendResponseHeaders to
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// allow headers to be sent with a number of CONTINUATION frames.
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static class FCHttp2TestExchange extends Http2TestExchangeImpl {
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static volatile Consumer<String> responseSentCB;
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static void setResponseSentCB(Consumer<String> responseSentCB) {
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FCHttp2TestExchange.responseSentCB = responseSentCB;
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}
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final Http2TestServerConnection conn;
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FCHttp2TestExchange(int streamid, String method, HttpHeaders reqheaders,
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HttpHeadersBuilder rspheadersBuilder, URI uri, InputStream is,
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SSLSession sslSession, BodyOutputStream os,
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Http2TestServerConnection conn, boolean pushAllowed) {
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super(streamid, method, reqheaders, rspheadersBuilder, uri, is, sslSession, os, conn, pushAllowed);
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this.conn = conn;
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}
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public void responseSent(String query) {
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System.out.println("Server: response sent for " + query);
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responseSentCB.accept(query);
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}
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}
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}
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