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/*
* Copyright (c) 2018, 2019, 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 8211437 8216974 8218662
* @run main/othervm -Djdk.httpclient.HttpClient.log=headers,requests Response204
* @summary
*/
import com.sun.net.httpserver.*;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.net.http.HttpResponse.BodyHandlers;
import java.util.concurrent.*;
import java.util.concurrent.atomic.AtomicReference;
import java.util.logging.*;
import java.io.*;
import java.net.*;
import static java.net.http.HttpClient.Builder.NO_PROXY;
/**
* Verify that a 204 response code with no content-length is handled correctly
*/
public class Response204 {
// check for 8216974
static final AtomicReference<Exception> serverError = new AtomicReference<>();
public static void main (String[] args) throws Exception {
Logger logger = Logger.getLogger ("com.sun.net.httpserver");
ConsoleHandler c = new ConsoleHandler();
c.setLevel (Level.WARNING);
logger.addHandler (c);
logger.setLevel (Level.WARNING);
Handler handler = new Handler();
InetSocketAddress addr = new InetSocketAddress (InetAddress.getLoopbackAddress(), 0);
HttpServer server = HttpServer.create (addr, 0);
HttpContext ctx = server.createContext ("/test", handler);
server.createContext ("/zero", new ZeroContentLengthHandler());
ExecutorService executor = Executors.newCachedThreadPool();
server.setExecutor (executor);
server.start ();
URI uri = new URI("http", null,
server.getAddress().getHostString(),
server.getAddress().getPort(),
"/test/foo.html", null, null);
try {
HttpClient client = HttpClient.newHttpClient();
HttpRequest request = HttpRequest.newBuilder(uri)
.GET()
.build();
HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
if (response.statusCode() != 204)
throw new RuntimeException("wrong response code");
if (response.body() != null && !response.body().equals(""))
throw new RuntimeException("should have received empty response");
System.out.println(response.headers().firstValue("content-length").orElse("nichts"));
System.out.println ("OK 1");
// Send a second time. This time we should get exception because the server
// is going to send an invalid 204 with a Content-length
try {
response = client.send(request, HttpResponse.BodyHandlers.ofString());
throw new RuntimeException("send should have thrown exception");
} catch (IOException ioe) {
System.out.println("OK 2");
}
// check for 8216974
Exception error = serverError.get();
if (error != null) throw error;
// Test 3
testZeroContentLength(uri.resolve("/zero/xxyy"));
System.out.println ("OK 3");
} finally {
server.stop(2);
executor.shutdown();
}
}
static void testZeroContentLength(URI uri) throws Exception {
System.out.println("--- testZeroContentLength ---");
HttpClient client = HttpClient.newBuilder().proxy(NO_PROXY).build();
HttpRequest request = HttpRequest.newBuilder(uri).build();
HttpResponse<String> response = client.send(request, BodyHandlers.ofString());
System.out.println("Received response:" + response);
System.out.println("Received headers:" + response.headers());
if (response.statusCode() != 204)
throw new RuntimeException("Expected 204, got:" + response.statusCode());
if (response.body() != null && !response.body().equals(""))
throw new RuntimeException("Expected empty response, got: " + response.body());
if (response.headers().firstValueAsLong("Content-Length").orElse(-1L) != 0L)
throw new RuntimeException("Expected Content-Length:0, in: " + response.headers());
}
public static boolean error = false;
static class Handler implements HttpHandler {
volatile int counter = 0;
volatile InetSocketAddress remote;
public void handle(HttpExchange t)
throws IOException {
InputStream is = t.getRequestBody();
Headers map = t.getRequestHeaders();
Headers rmap = t.getResponseHeaders();
if (counter % 2 == 0) {
// store the client's address
remote = t.getRemoteAddress();
System.out.println("Server received request from: " + remote);
}
while (is.read() != -1) ;
is.close();
if ((++counter) % 2 == 0) {
// pretend there is a body
rmap.set("Content-length", "10");
// 8216974: the client should have returned the connection
// to the pool and should therefore have the same
// remote address.
if (!t.getRemoteAddress().equals(remote)) {
String msg = "Unexpected remote address: "
+ t.getRemoteAddress()
+ " - should have been " + remote;
System.out.println(msg);
serverError.set(new Exception(msg));
}
}
t.sendResponseHeaders(204, -1);
t.close();
}
}
// A handler that returns a 204 with a `Content-Length: 0` header/value
static class ZeroContentLengthHandler implements HttpHandler {
public void handle(HttpExchange t) throws IOException {
try (InputStream is = t.getRequestBody()) {
is.readAllBytes();
}
t.getResponseHeaders().set("Content-length", "0");
t.sendResponseHeaders(204, -1);
t.close();
}
}
}
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