366 lines
14 KiB
Java
366 lines
14 KiB
Java
/*
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* Copyright (c) 2015, 2018, 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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import java.net.http.HttpClient;
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import java.net.http.HttpClient.Version;
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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 jdk.test.lib.net.SimpleSSLContext;
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import javax.net.ServerSocketFactory;
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import javax.net.ssl.SSLContext;
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import javax.net.ssl.SSLException;
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import javax.net.ssl.SSLServerSocketFactory;
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import java.io.IOException;
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import java.net.SocketException;
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import java.net.URI;
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import java.nio.ByteBuffer;
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import java.util.List;
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import java.util.concurrent.CompletableFuture;
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import java.util.concurrent.CompletionException;
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import java.util.concurrent.CompletionStage;
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import java.util.concurrent.ExecutionException;
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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.net.http.HttpResponse.BodyHandler;
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import java.net.http.HttpResponse.BodySubscriber;
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import static java.lang.String.format;
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import static java.lang.System.out;
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import static java.nio.charset.StandardCharsets.ISO_8859_1;
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/**
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* @test
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* @bug 8087112
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* @library /test/lib
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* @modules java.net.http/jdk.internal.net.http.common
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* @build jdk.test.lib.net.SimpleSSLContext
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* @build MockServer ReferenceTracker
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* @run main/othervm CancelledResponse
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* @run main/othervm CancelledResponse SSL
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*/
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/**
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* Similar test to SplitResponse except that the client will cancel the response
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* before receiving it fully.
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*/
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public class CancelledResponse {
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static String response(String body, boolean serverKeepalive) {
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StringBuilder sb = new StringBuilder();
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sb.append("HTTP/1.1 200 OK\r\n");
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if (!serverKeepalive)
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sb.append("Connection: Close\r\n");
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sb.append("Content-length: ")
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.append(body.getBytes(ISO_8859_1).length)
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.append("\r\n");
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sb.append("\r\n");
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sb.append(body);
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return sb.toString();
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}
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static final String responses[] = {
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"Lorem ipsum dolor sit amet consectetur adipiscing elit,",
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"sed do eiusmod tempor quis nostrud exercitation ullamco laboris nisi ut",
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"aliquip ex ea commodo consequat."
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};
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static final ReferenceTracker TRACKER = ReferenceTracker.INSTANCE;
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final ServerSocketFactory factory;
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final SSLContext context;
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final boolean useSSL;
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CancelledResponse(boolean useSSL) throws IOException {
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this.useSSL = useSSL;
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context = new SimpleSSLContext().get();
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SSLContext.setDefault(context);
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factory = useSSL ? SSLServerSocketFactory.getDefault()
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: ServerSocketFactory.getDefault();
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}
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public HttpClient newHttpClient() {
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HttpClient client;
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if (useSSL) {
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client = HttpClient.newBuilder()
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.sslContext(context)
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.build();
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} else {
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client = HttpClient.newHttpClient();
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}
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return TRACKER.track(client);
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}
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public static void main(String[] args) throws Exception {
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boolean useSSL = false;
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if (args != null && args.length == 1) {
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useSSL = "SSL".equals(args[0]);
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}
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CancelledResponse sp = new CancelledResponse(useSSL);
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Throwable failed = null;
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try {
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for (Version version : Version.values()) {
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for (boolean serverKeepalive : new boolean[]{true, false}) {
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// Note: the mock server doesn't support Keep-Alive, but
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// pretending that it might exercises code paths in and out of
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// the connection pool, and retry logic
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for (boolean async : new boolean[]{true, false}) {
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sp.test(version, serverKeepalive, async);
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}
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}
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}
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} catch (Exception | Error t) {
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failed = t;
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throw t;
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} finally {
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Thread.sleep(100);
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AssertionError trackFailed = TRACKER.check(500);
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if (trackFailed != null) {
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if (failed != null) {
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failed.addSuppressed(trackFailed);
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if (failed instanceof Error) throw (Error) failed;
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if (failed instanceof Exception) throw (Exception) failed;
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}
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throw trackFailed;
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}
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}
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}
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static class CancelException extends IOException {
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}
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// @Test
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void test(Version version, boolean serverKeepalive, boolean async)
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throws Exception
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{
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out.println(format("*** version %s, serverKeepAlive: %s, async: %s ***",
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version, serverKeepalive, async));
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MockServer server = new MockServer(0, factory);
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URI uri = new URI(server.getURL());
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out.println("server is: " + uri);
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server.start();
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HttpClient client = newHttpClient();
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HttpRequest request = HttpRequest.newBuilder(uri).version(version).build();
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try {
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for (int i = 0; i < responses.length; i++) {
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HttpResponse<String> r = null;
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CompletableFuture<HttpResponse<String>> cf1;
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CancelException expected = null;
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AtomicBoolean cancelled = new AtomicBoolean();
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out.println("----- iteration " + i + " -----");
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String body = responses[i];
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Thread t = sendSplitResponse(response(body, serverKeepalive), server, cancelled);
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try {
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if (async) {
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out.println("send async: " + request);
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cf1 = client.sendAsync(request, ofString(body, cancelled));
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r = cf1.get();
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} else { // sync
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out.println("send sync: " + request);
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r = client.send(request, ofString(body, cancelled));
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}
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} catch (CancelException c1) {
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System.out.println("Got expected exception: " + c1);
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expected = c1;
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} catch (IOException | ExecutionException | CompletionException c2) {
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Throwable c = c2;
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while (c != null && !(c instanceof CancelException)) {
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c = c.getCause();
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}
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if (c instanceof CancelException) {
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System.out.println("Got expected exception: " + c);
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expected = (CancelException)c;
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} else throw c2;
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}
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if (r != null) {
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if (r.statusCode() != 200)
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throw new RuntimeException("Failed");
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String rxbody = r.body();
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out.println("received " + rxbody);
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if (!rxbody.equals(body))
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throw new RuntimeException(format("Expected:%s, got:%s", body, rxbody));
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}
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t.join();
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conn.close();
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if (expected == null) {
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throw new RuntimeException("Expected exception not raised for "
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+ i + " cancelled=" + cancelled.get());
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}
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}
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} finally {
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server.close();
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}
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System.out.println("OK");
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}
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static class CancellingSubscriber implements BodySubscriber<String> {
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private final String expected;
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private final CompletableFuture<String> result;
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private Flow.Subscription subscription;
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final AtomicInteger index = new AtomicInteger();
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final AtomicBoolean cancelled;
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CancellingSubscriber(String expected, AtomicBoolean cancelled) {
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this.cancelled = cancelled;
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this.expected = expected;
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result = new CompletableFuture<>();
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}
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@Override
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public CompletionStage<String> getBody() {
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return result;
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}
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@Override
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public void onSubscribe(Flow.Subscription subscription) {
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this.subscription = subscription;
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subscription.request(1);
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}
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@Override
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public void onNext(List<ByteBuffer> item) {
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//if (result.isDone())
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for (ByteBuffer b : item) {
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while (b.hasRemaining() && !result.isDone()) {
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int i = index.getAndIncrement();
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char at = expected.charAt(i);
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byte[] data = new byte[b.remaining()];
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b.get(data); // we know that the server writes 1 char
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String s = new String(data);
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char c = s.charAt(0);
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if (c != at) {
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Throwable x = new IllegalStateException("char at "
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+ i + " is '" + c + "' expected '"
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+ at + "' for \"" + expected +"\"");
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out.println("unexpected char received, cancelling");
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subscription.cancel();
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result.completeExceptionally(x);
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return;
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}
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}
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}
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if (index.get() > 0 && !result.isDone()) {
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// we should complete the result here, but let's
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// see if we get something back...
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out.println("Cancelling subscription after reading " + index.get());
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cancelled.set(true);
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subscription.cancel();
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result.completeExceptionally(new CancelException());
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return;
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}
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if (!result.isDone()) {
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out.println("requesting 1 more");
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subscription.request(1);
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}
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}
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@Override
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public void onError(Throwable throwable) {
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result.completeExceptionally(throwable);
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}
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@Override
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public void onComplete() {
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int len = index.get();
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if (len == expected.length()) {
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result.complete(expected);
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} else {
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Throwable x = new IllegalStateException("received only "
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+ len + " chars, expected " + expected.length()
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+ " for \"" + expected +"\"");
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result.completeExceptionally(x);
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}
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}
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}
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static class CancellingHandler implements BodyHandler<String> {
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final String expected;
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final AtomicBoolean cancelled;
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CancellingHandler(String expected, AtomicBoolean cancelled) {
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this.expected = expected;
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this.cancelled = cancelled;
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}
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@Override
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public BodySubscriber<String> apply(HttpResponse.ResponseInfo rinfo) {
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assert !cancelled.get();
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return new CancellingSubscriber(expected, cancelled);
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}
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}
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BodyHandler<String> ofString(String expected, AtomicBoolean cancelled) {
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return new CancellingHandler(expected, cancelled);
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}
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// required for cleanup
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volatile MockServer.Connection conn;
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// Sends the response, mostly, one byte at a time with a small delay
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// between bytes, to encourage that each byte is read in a separate read
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Thread sendSplitResponse(String s, MockServer server, AtomicBoolean cancelled) {
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System.out.println("Sending: ");
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Thread t = new Thread(() -> {
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System.out.println("Waiting for server to receive headers");
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conn = server.activity();
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System.out.println("Start sending response");
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int sent = 0;
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try {
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int len = s.length();
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out.println("sending " + s);
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for (int i = 0; i < len; i++) {
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String onechar = s.substring(i, i + 1);
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conn.send(onechar);
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sent++;
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Thread.sleep(10);
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}
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out.println("sent " + s);
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} catch (SSLException | SocketException | RuntimeException x) {
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// if SSL then we might get a "Broken Pipe", or a
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// RuntimeException wrapping an InvalidAlgorithmParameterException
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// (probably if the channel is closed during the handshake),
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// otherwise we get a "Socket closed".
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boolean expected = cancelled.get();
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if (sent > 0 && expected) {
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System.out.println("Connection closed by peer as expected: " + x);
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return;
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} else {
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System.out.println("Unexpected exception (sent="
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+ sent + ", cancelled=" + expected + "): " + x);
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if (x instanceof RuntimeException) throw (RuntimeException) x;
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throw new RuntimeException(x);
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}
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} catch (IOException | InterruptedException e) {
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throw new RuntimeException(e);
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}
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});
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t.setDaemon(true);
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t.start();
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return t;
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}
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}
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