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/*
* Copyright (c) 2020, 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 8253005
* @library /test/lib
* @summary Check that sendResponseHeaders throws an IOException when headers
* have already been sent
* @run testng/othervm SendResponseHeadersTest
*/
import com.sun.net.httpserver.HttpExchange;
import com.sun.net.httpserver.HttpHandler;
import com.sun.net.httpserver.HttpServer;
import jdk.test.lib.net.URIBuilder;
import org.testng.annotations.AfterTest;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Test;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.net.http.HttpResponse.BodyHandlers;
import java.nio.charset.StandardCharsets;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import static java.net.http.HttpClient.Builder.NO_PROXY;
import static org.testng.Assert.expectThrows;
import static org.testng.Assert.fail;
public class SendResponseHeadersTest {
URI uri;
HttpServer server;
ExecutorService executor;
@BeforeTest
public void setUp() throws IOException, URISyntaxException {
var loopback = InetAddress.getLoopbackAddress();
var addr = new InetSocketAddress(loopback, 0);
server = HttpServer.create(addr, 0);
server.createContext("/test", new TestHandler());
executor = Executors.newCachedThreadPool();
server.setExecutor(executor);
server.start();
uri = URIBuilder.newBuilder()
.scheme("http")
.host(loopback)
.port(server.getAddress().getPort())
.path("/test/foo.html")
.build();
}
@Test
public void testSend() throws Exception {
HttpClient client = HttpClient.newBuilder()
.proxy(NO_PROXY)
.build();
HttpRequest request = HttpRequest.newBuilder(uri)
.GET()
.build();
HttpResponse<String> response = client.send(request, BodyHandlers.ofString());
// verify empty response received, otherwise an error has occurred
if (!response.body().isEmpty())
fail(response.body());
}
@AfterTest
public void tearDown() {
server.stop(0);
executor.shutdown();
}
static class TestHandler implements HttpHandler {
public void handle(HttpExchange exchange) throws IOException {
try (InputStream is = exchange.getRequestBody();
OutputStream os = exchange.getResponseBody()) {
is.readAllBytes();
exchange.sendResponseHeaders(200, 0);
try {
IOException io = expectThrows(IOException.class,
() -> exchange.sendResponseHeaders(200, 0));
System.out.println("Got expected exception: " + io);
} catch (Throwable t) {
// expectThrows triggered an assertion, return error message to the client
t.printStackTrace();
os.write(("Unexpected error: " + t).getBytes(StandardCharsets.UTF_8));
}
}
}
}
}
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