370 lines
17 KiB
Java
370 lines
17 KiB
Java
/*
|
|
* Copyright (c) 2024, 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.
|
|
*/
|
|
|
|
/*
|
|
* @test
|
|
* @bug 8342075
|
|
* @summary checks connection flow control
|
|
* @library /test/lib /test/jdk/java/net/httpclient/lib
|
|
* @build jdk.httpclient.test.lib.http2.Http2TestServer jdk.test.lib.net.SimpleSSLContext
|
|
* @run testng/othervm -Djdk.internal.httpclient.debug=true
|
|
* -Djdk.httpclient.connectionWindowSize=65535
|
|
* -Djdk.httpclient.windowsize=16384
|
|
* ConnectionFlowControlTest
|
|
*/
|
|
|
|
import java.io.IOException;
|
|
import java.io.InputStream;
|
|
import java.io.OutputStream;
|
|
import java.net.ProtocolException;
|
|
import java.net.URI;
|
|
import java.net.http.HttpClient;
|
|
import java.net.http.HttpHeaders;
|
|
import java.net.http.HttpRequest;
|
|
import java.net.http.HttpRequest.BodyPublishers;
|
|
import java.net.http.HttpResponse;
|
|
import java.net.http.HttpResponse.BodyHandler;
|
|
import java.net.http.HttpResponse.BodyHandlers;
|
|
import java.net.http.HttpResponse.BodySubscriber;
|
|
import java.net.http.HttpResponse.ResponseInfo;
|
|
import java.nio.ByteBuffer;
|
|
import java.nio.charset.StandardCharsets;
|
|
import java.util.ArrayList;
|
|
import java.util.Arrays;
|
|
import java.util.List;
|
|
import java.util.Map.Entry;
|
|
import java.util.concurrent.CompletableFuture;
|
|
import java.util.concurrent.CompletionStage;
|
|
import java.util.concurrent.ConcurrentHashMap;
|
|
import java.util.concurrent.ExecutionException;
|
|
import java.util.concurrent.Flow.Subscription;
|
|
import java.util.concurrent.atomic.AtomicInteger;
|
|
import java.util.function.BiFunction;
|
|
import java.util.function.Consumer;
|
|
import javax.net.ssl.SSLContext;
|
|
import javax.net.ssl.SSLSession;
|
|
|
|
import jdk.httpclient.test.lib.common.HttpServerAdapters.HttpTestServer;
|
|
import jdk.httpclient.test.lib.http2.BodyOutputStream;
|
|
import jdk.httpclient.test.lib.http2.Http2Handler;
|
|
import jdk.httpclient.test.lib.http2.Http2TestExchange;
|
|
import jdk.httpclient.test.lib.http2.Http2TestExchangeImpl;
|
|
import jdk.httpclient.test.lib.http2.Http2TestServer;
|
|
import jdk.httpclient.test.lib.http2.Http2TestServerConnection;
|
|
import jdk.internal.net.http.common.HttpHeadersBuilder;
|
|
import jdk.internal.net.http.frame.ContinuationFrame;
|
|
import jdk.internal.net.http.frame.HeaderFrame;
|
|
import jdk.internal.net.http.frame.HeadersFrame;
|
|
import jdk.internal.net.http.frame.Http2Frame;
|
|
import jdk.internal.net.http.frame.SettingsFrame;
|
|
import jdk.test.lib.Utils;
|
|
import jdk.test.lib.net.SimpleSSLContext;
|
|
import org.testng.annotations.AfterTest;
|
|
import org.testng.annotations.BeforeTest;
|
|
import org.testng.annotations.DataProvider;
|
|
import org.testng.annotations.Test;
|
|
|
|
import static java.util.List.of;
|
|
import static java.util.Map.entry;
|
|
import static org.testng.Assert.assertEquals;
|
|
import static org.testng.Assert.assertNotEquals;
|
|
import static org.testng.Assert.assertTrue;
|
|
import static org.testng.Assert.fail;
|
|
|
|
public class ConnectionFlowControlTest {
|
|
|
|
SSLContext sslContext;
|
|
HttpTestServer http2TestServer; // HTTP/2 ( h2c )
|
|
HttpTestServer https2TestServer; // HTTP/2 ( h2 )
|
|
String http2URI;
|
|
String https2URI;
|
|
final AtomicInteger reqid = new AtomicInteger();
|
|
|
|
|
|
@DataProvider(name = "variants")
|
|
public Object[][] variants() {
|
|
return new Object[][] {
|
|
{ http2URI },
|
|
{ https2URI },
|
|
};
|
|
}
|
|
|
|
@Test(dataProvider = "variants")
|
|
void test(String uri) throws Exception {
|
|
System.out.printf("%ntesting %s%n", uri);
|
|
ConcurrentHashMap<String, CompletableFuture<String>> responseSent = new ConcurrentHashMap<>();
|
|
ConcurrentHashMap<String, HttpResponse<InputStream>> responses = new ConcurrentHashMap<>();
|
|
FCHttp2TestExchange.setResponseSentCB((s) -> responseSent.get(s).complete(s));
|
|
int connectionWindowSize = Math.max(Integer.getInteger(
|
|
"jdk.httpclient.connectionWindowSize", 65535), 65535);
|
|
int windowSize = Math.max(Integer.getInteger(
|
|
"jdk.httpclient.windowsize", 65535), 16384);
|
|
int max = connectionWindowSize / windowSize + 2;
|
|
System.out.printf("connection window: %s, stream window: %s, will make %s requests%n",
|
|
connectionWindowSize, windowSize, max);
|
|
|
|
try (HttpClient client = HttpClient.newBuilder().sslContext(sslContext).build()) {
|
|
String label = null;
|
|
|
|
Throwable t = null;
|
|
try {
|
|
String[] keys = new String[max];
|
|
for (int i = 0; i < max; i++) {
|
|
String query = "reqId=" + reqid.incrementAndGet();
|
|
keys[i] = query;
|
|
URI uriWithQuery = URI.create(uri + "?" + query);
|
|
CompletableFuture<String> sent = new CompletableFuture<>();
|
|
responseSent.put(query, sent);
|
|
HttpRequest request = HttpRequest.newBuilder(uriWithQuery)
|
|
.POST(BodyPublishers.ofString("Hello there!"))
|
|
.build();
|
|
System.out.println("\nSending request:" + uriWithQuery);
|
|
final HttpClient cc = client;
|
|
var response = cc.send(request, BodyHandlers.ofInputStream());
|
|
responses.put(query, response);
|
|
String ckey = response.headers().firstValue("X-Connection-Key").get();
|
|
if (label == null) label = ckey;
|
|
try {
|
|
if (i < max - 1) {
|
|
// the connection window might be exceeded at i == max - 2, which
|
|
// means that the last request could go on a new connection.
|
|
assertEquals(ckey, label, "Unexpected key for " + query);
|
|
}
|
|
} catch (AssertionError ass) {
|
|
// since we won't pull all responses, the client
|
|
// will not exit unless we ask it to shutdown now.
|
|
client.shutdownNow();
|
|
throw ass;
|
|
}
|
|
}
|
|
try {
|
|
Thread.sleep(1000);
|
|
} catch (InterruptedException ie) {
|
|
// ignore
|
|
}
|
|
CompletableFuture<?> allsent = CompletableFuture.allOf(responseSent.values().stream()
|
|
.toArray(CompletableFuture<?>[]::new));
|
|
allsent.get();
|
|
for (int i = 0; i < max; i++) {
|
|
try {
|
|
String query = keys[i];
|
|
var response = responses.get(keys[i]);
|
|
String ckey = response.headers().firstValue("X-Connection-Key").get();
|
|
if (label == null) label = ckey;
|
|
if (i < max - 1) {
|
|
// the connection window might be exceeded at i == max - 2, which
|
|
// means that the last request could go on a new connection.
|
|
assertEquals(ckey, label, "Unexpected key for " + query);
|
|
}
|
|
int wait = uri.startsWith("https://") ? 500 : 250;
|
|
try (InputStream is = response.body()) {
|
|
Thread.sleep(Utils.adjustTimeout(wait));
|
|
is.readAllBytes();
|
|
}
|
|
System.out.printf("%s did not fail: %s%n", query, response.statusCode());
|
|
} catch (AssertionError t1) {
|
|
// since we won't pull all responses, the client
|
|
// will not exit unless we ask it to shutdown now.
|
|
client.shutdownNow();
|
|
throw t1;
|
|
} catch (Throwable t0) {
|
|
System.out.println("Got EXPECTED: " + t0);
|
|
if (t0 instanceof ExecutionException) {
|
|
t0 = t0.getCause();
|
|
}
|
|
t = t0;
|
|
try {
|
|
assertDetailMessage(t0, i);
|
|
} catch (AssertionError e) {
|
|
// since we won't pull all responses, the client
|
|
// will not exit unless we ask it to shutdown now.
|
|
client.shutdownNow();
|
|
throw e;
|
|
}
|
|
}
|
|
}
|
|
} catch (Throwable t0) {
|
|
System.out.println("Got EXPECTED: " + t0);
|
|
if (t0 instanceof ExecutionException) {
|
|
t0 = t0.getCause();
|
|
}
|
|
t = t0;
|
|
}
|
|
if (t == null) {
|
|
// we could fail here if we haven't waited long enough
|
|
fail("Expected exception, got all responses, should sleep time be raised?");
|
|
} else {
|
|
assertDetailMessage(t, max);
|
|
}
|
|
String query = "reqId=" + reqid.incrementAndGet();
|
|
URI uriWithQuery = URI.create(uri + "?" + query);
|
|
CompletableFuture<String> sent = new CompletableFuture<>();
|
|
responseSent.put(query, sent);
|
|
HttpRequest request = HttpRequest.newBuilder(uriWithQuery)
|
|
.POST(BodyPublishers.ofString("Hello there!"))
|
|
.build();
|
|
System.out.println("\nSending last request:" + uriWithQuery);
|
|
var response = client.send(request, BodyHandlers.ofString());
|
|
if (label != null) {
|
|
String ckey = response.headers().firstValue("X-Connection-Key").get();
|
|
assertNotEquals(ckey, label);
|
|
System.out.printf("last request %s sent on different connection as expected:" +
|
|
"\n\tlast: %s\n\tprevious: %s%n", query, ckey, label);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Assertions based on implementation specific detail messages. Keep in
|
|
// sync with implementation.
|
|
static void assertDetailMessage(Throwable throwable, int iterationIndex) {
|
|
try {
|
|
Throwable cause = throwable;
|
|
while (cause != null) {
|
|
if (cause instanceof ProtocolException) {
|
|
if (cause.getMessage().contains("connection window exceeded")) {
|
|
System.out.println("Found expected exception: " + cause);
|
|
return;
|
|
}
|
|
}
|
|
cause = cause.getCause();
|
|
}
|
|
throw new AssertionError(
|
|
"ProtocolException(\"protocol error: connection window exceeded\") not found",
|
|
throwable);
|
|
} catch (AssertionError e) {
|
|
System.out.println("Exception does not match expectation: " + throwable);
|
|
throwable.printStackTrace(System.out);
|
|
throw e;
|
|
}
|
|
}
|
|
|
|
@BeforeTest
|
|
public void setup() throws Exception {
|
|
sslContext = new SimpleSSLContext().get();
|
|
if (sslContext == null)
|
|
throw new AssertionError("Unexpected null sslContext");
|
|
|
|
var http2TestServer = new Http2TestServer("localhost", false, 0);
|
|
http2TestServer.addHandler(new Http2TestHandler(), "/http2/");
|
|
this.http2TestServer = HttpTestServer.of(http2TestServer);
|
|
http2URI = "http://" + this.http2TestServer.serverAuthority() + "/http2/x";
|
|
|
|
var https2TestServer = new Http2TestServer("localhost", true, sslContext);
|
|
https2TestServer.addHandler(new Http2TestHandler(), "/https2/");
|
|
this.https2TestServer = HttpTestServer.of(https2TestServer);
|
|
https2URI = "https://" + this.https2TestServer.serverAuthority() + "/https2/x";
|
|
|
|
// Override the default exchange supplier with a custom one to enable
|
|
// particular test scenarios
|
|
http2TestServer.setExchangeSupplier(FCHttp2TestExchange::new);
|
|
https2TestServer.setExchangeSupplier(FCHttp2TestExchange::new);
|
|
|
|
this.http2TestServer.start();
|
|
this.https2TestServer.start();
|
|
}
|
|
|
|
@AfterTest
|
|
public void teardown() throws Exception {
|
|
http2TestServer.stop();
|
|
https2TestServer.stop();
|
|
}
|
|
|
|
static class Http2TestHandler implements Http2Handler {
|
|
|
|
@Override
|
|
public void handle(Http2TestExchange t) throws IOException {
|
|
String query = t.getRequestURI().getRawQuery();
|
|
|
|
try (InputStream is = t.getRequestBody();
|
|
OutputStream os = t.getResponseBody()) {
|
|
|
|
byte[] bytes = is.readAllBytes();
|
|
System.out.println("Server " + t.getLocalAddress() + " received:\n"
|
|
+ t.getRequestURI() + ": " + new String(bytes, StandardCharsets.UTF_8));
|
|
t.getResponseHeaders().setHeader("X-Connection-Key", t.getConnectionKey());
|
|
|
|
if (bytes.length == 0) bytes = "no request body!".getBytes(StandardCharsets.UTF_8);
|
|
int window = Math.max(16384, Integer.getInteger("jdk.httpclient.windowsize", 2*16*1024));
|
|
final int maxChunkSize;
|
|
if (t instanceof FCHttp2TestExchange fct) {
|
|
maxChunkSize = Math.min(window, fct.conn.getMaxFrameSize());
|
|
} else {
|
|
maxChunkSize = Math.min(window, SettingsFrame.MAX_FRAME_SIZE);
|
|
}
|
|
byte[] resp = bytes.length < maxChunkSize
|
|
? bytes
|
|
: Arrays.copyOfRange(bytes, 0, maxChunkSize);
|
|
int max = (window / resp.length);
|
|
// send in chunks
|
|
t.sendResponseHeaders(200, 0);
|
|
int sent = 0;
|
|
for (int i=0; i<=max; i++) {
|
|
int len = Math.min(resp.length, window - sent);
|
|
if (len <= 0) break;
|
|
if (os instanceof BodyOutputStream bos) {
|
|
try {
|
|
// we don't wait for the stream window, but we want
|
|
// to wait for the connection window
|
|
bos.waitForStreamWindow(len);
|
|
} catch (InterruptedException ie) {
|
|
// ignore and continue...
|
|
}
|
|
}
|
|
((BodyOutputStream) os).writeUncontrolled(resp, 0, len);
|
|
sent += len;
|
|
}
|
|
if (sent != window) fail("should have sent %s, sent %s".formatted(window, sent));
|
|
}
|
|
if (t instanceof FCHttp2TestExchange fct) {
|
|
fct.responseSent(query);
|
|
} else {
|
|
fail("Exchange is not %s but %s"
|
|
.formatted(FCHttp2TestExchange.class.getName(), t.getClass().getName()));
|
|
}
|
|
}
|
|
}
|
|
|
|
// A custom Http2TestExchangeImpl that overrides sendResponseHeaders to
|
|
// allow headers to be sent with a number of CONTINUATION frames.
|
|
static class FCHttp2TestExchange extends Http2TestExchangeImpl {
|
|
static volatile Consumer<String> responseSentCB;
|
|
static void setResponseSentCB(Consumer<String> responseSentCB) {
|
|
FCHttp2TestExchange.responseSentCB = responseSentCB;
|
|
}
|
|
|
|
final Http2TestServerConnection conn;
|
|
FCHttp2TestExchange(int streamid, String method, HttpHeaders reqheaders,
|
|
HttpHeadersBuilder rspheadersBuilder, URI uri, InputStream is,
|
|
SSLSession sslSession, BodyOutputStream os,
|
|
Http2TestServerConnection conn, boolean pushAllowed) {
|
|
super(streamid, method, reqheaders, rspheadersBuilder, uri, is, sslSession, os, conn, pushAllowed);
|
|
this.conn = conn;
|
|
}
|
|
public void responseSent(String query) {
|
|
System.out.println("Server: response sent for " + query);
|
|
responseSentCB.accept(query);
|
|
}
|
|
|
|
}
|
|
}
|