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8286171: HttpClient/2 : Expect:100-Continue blocks indefinitely when …
…response is not 100 Reviewed-by: dfuchs, jpai
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/* | ||
* Copyright (c) 2022, 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. Oracle designates this | ||
* particular file as subject to the "Classpath" exception as provided | ||
* by Oracle in the LICENSE file that accompanied this code. | ||
* | ||
* 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. | ||
*/ | ||
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/* | ||
* @test | ||
* @summary Tests that when the httpclient sends a 100 Expect Continue header and receives | ||
* a response code of 417 Expectation Failed, that the client does not hang | ||
* indefinitely and closes the connection. | ||
* @bug 8286171 | ||
* @modules java.base/sun.net.www.http | ||
* java.net.http/jdk.internal.net.http.common | ||
* java.net.http/jdk.internal.net.http.frame | ||
* java.net.http/jdk.internal.net.http.hpack | ||
* jdk.httpserver | ||
* @library /test/lib http2/server | ||
* @compile HttpServerAdapters.java | ||
* @run testng/othervm ExpectContinueTest | ||
*/ | ||
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import com.sun.net.httpserver.HttpServer; | ||
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import org.testng.annotations.AfterTest; | ||
import org.testng.annotations.BeforeTest; | ||
import org.testng.annotations.DataProvider; | ||
import org.testng.annotations.Test; | ||
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import javax.net.ServerSocketFactory; | ||
import java.io.BufferedReader; | ||
import java.io.Closeable; | ||
import java.io.IOException; | ||
import java.io.InputStream; | ||
import java.io.InputStreamReader; | ||
import java.io.OutputStream; | ||
import java.io.OutputStreamWriter; | ||
import java.io.PrintWriter; | ||
import java.io.Writer; | ||
import java.net.InetAddress; | ||
import java.net.InetSocketAddress; | ||
import java.net.ServerSocket; | ||
import java.net.Socket; | ||
import java.net.URI; | ||
import java.net.http.HttpClient; | ||
import java.net.http.HttpRequest; | ||
import java.net.http.HttpResponse; | ||
import java.util.StringTokenizer; | ||
import java.util.concurrent.CompletableFuture; | ||
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import static java.nio.charset.StandardCharsets.UTF_8; | ||
import static org.testng.Assert.assertEquals; | ||
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public class ExpectContinueTest implements HttpServerAdapters { | ||
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HttpTestServer http1TestServer; // HTTP/1.1 | ||
Http1HangServer http1HangServer; | ||
HttpTestServer http2TestServer; // HTTP/2 | ||
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URI getUri; | ||
URI postUri; | ||
URI hangUri; | ||
URI h2getUri; | ||
URI h2postUri; | ||
URI h2hangUri; | ||
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static final String EXPECTATION_FAILED_417 = "417 Expectation Failed"; | ||
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@BeforeTest | ||
public void setup() throws Exception { | ||
InetSocketAddress sa = new InetSocketAddress(InetAddress.getLoopbackAddress(), 0); | ||
InetSocketAddress saHang = new InetSocketAddress(InetAddress.getLoopbackAddress(), 0); | ||
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http1TestServer = HttpTestServer.of(HttpServer.create(sa, 0)); | ||
http1TestServer.addHandler(new GetHandler(), "/http1/get"); | ||
http1TestServer.addHandler(new PostHandler(), "/http1/post"); | ||
getUri = URI.create("http://" + http1TestServer.serverAuthority() + "/http1/get"); | ||
postUri = URI.create("http://" + http1TestServer.serverAuthority() + "/http1/post"); | ||
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// Due to limitations of the above Http1 Server, a manual approach is taken to test the hanging with the | ||
// httpclient using Http1 so that the correct response header can be returned for the test case | ||
http1HangServer = new Http1HangServer(saHang); | ||
hangUri = URI.create("http://" + http1HangServer.ia.getCanonicalHostName() + ":" + http1HangServer.port + "/http1/hang"); | ||
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http2TestServer = HttpTestServer.of( | ||
new Http2TestServer("localhost", false, 0)); | ||
http2TestServer.addHandler(new GetHandler(), "/http2/get"); | ||
http2TestServer.addHandler(new PostHandler(), "/http2/post"); | ||
http2TestServer.addHandler(new PostHandlerCantContinue(), "/http2/hang"); | ||
h2getUri = URI.create("http://" + http2TestServer.serverAuthority() + "/http2/get"); | ||
h2postUri = URI.create("http://" + http2TestServer.serverAuthority() + "/http2/post"); | ||
h2hangUri = URI.create("http://" + http2TestServer.serverAuthority() + "/http2/hang"); | ||
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http1TestServer.start(); | ||
http1HangServer.start(); | ||
http2TestServer.start(); | ||
} | ||
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@AfterTest | ||
public void teardown() throws IOException { | ||
http1TestServer.stop(); | ||
http1HangServer.close(); | ||
http2TestServer.stop(); | ||
} | ||
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static class GetHandler implements HttpTestHandler { | ||
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@Override | ||
public void handle(HttpTestExchange exchange) throws IOException { | ||
try (InputStream is = exchange.getRequestBody(); | ||
OutputStream os = exchange.getResponseBody()) { | ||
is.readAllBytes(); | ||
byte[] bytes = "RESPONSE_BODY".getBytes(UTF_8); | ||
exchange.sendResponseHeaders(200, bytes.length); | ||
os.write(bytes); | ||
} | ||
} | ||
} | ||
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static class PostHandler implements HttpTestHandler { | ||
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@Override | ||
public void handle(HttpTestExchange exchange) throws IOException { | ||
// Http1 server has already sent 100 response at this point but not Http2 server | ||
if (exchange.getExchangeVersion().equals(HttpClient.Version.HTTP_2)) { | ||
// Send 100 Headers, tell client that we're ready for body | ||
exchange.sendResponseHeaders(100, 0); | ||
} | ||
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// Read body from client and acknowledge with 200 | ||
try (InputStream is = exchange.getRequestBody(); | ||
OutputStream os = exchange.getResponseBody()) { | ||
is.readAllBytes(); | ||
exchange.sendResponseHeaders(200, 0); | ||
} | ||
} | ||
} | ||
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static class PostHandlerCantContinue implements HttpTestHandler { | ||
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@Override | ||
public void handle(HttpTestExchange exchange) throws IOException { | ||
//Send 417 Headers, tell client to not send body | ||
try (InputStream is = exchange.getRequestBody(); | ||
OutputStream os = exchange.getResponseBody()) { | ||
byte[] bytes = EXPECTATION_FAILED_417.getBytes(); | ||
exchange.sendResponseHeaders(417, bytes.length); | ||
os.write(bytes); | ||
} | ||
} | ||
} | ||
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static class Http1HangServer extends Thread implements Closeable { | ||
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final ServerSocket ss; | ||
final InetAddress ia; | ||
final int port; | ||
volatile boolean closed = false; | ||
volatile Socket client; | ||
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Http1HangServer(InetSocketAddress sa) throws IOException { | ||
ss = ServerSocketFactory.getDefault() | ||
.createServerSocket(sa.getPort(), -1, sa.getAddress()); | ||
ia = ss.getInetAddress(); | ||
port = ss.getLocalPort(); | ||
} | ||
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@Override | ||
public void run() { | ||
byte[] bytes = EXPECTATION_FAILED_417.getBytes(); | ||
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while (!closed) { | ||
try { | ||
// Not using try with resources here as we expect the client to close resources when | ||
// 417 is received | ||
client = ss.accept(); | ||
InputStream is = client.getInputStream(); | ||
OutputStream os = client.getOutputStream(); | ||
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BufferedReader reader = new BufferedReader(new InputStreamReader(is)); | ||
Writer w = new OutputStreamWriter(os, UTF_8); | ||
PrintWriter pw = new PrintWriter(w); | ||
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StringBuilder response = new StringBuilder(); | ||
String line = null; | ||
StringBuilder reqBuilder = new StringBuilder(); | ||
while (!(line = reader.readLine()).isEmpty()) { | ||
reqBuilder.append(line + "\r\n"); | ||
} | ||
String req = reqBuilder.toString(); | ||
System.err.println("Http1HangServer received: " + req); | ||
StringTokenizer tokenizer = new StringTokenizer(req); | ||
String method = tokenizer.nextToken(); | ||
String path = tokenizer.nextToken(); | ||
String version = tokenizer.nextToken(); | ||
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boolean validRequest = method.equals("POST") && path.equals("/http1/hang") | ||
&& version.equals("HTTP/1.1"); | ||
// If correct request, send 417 reply. Otherwise, wait for correct one | ||
if (validRequest) { | ||
closed = true; | ||
response.append("HTTP/1.1 417 Expectation Failed\r\n") | ||
.append("Content-Length: ") | ||
.append(0) | ||
.append("\r\n\r\n"); | ||
pw.print(response); | ||
pw.flush(); | ||
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os.write(bytes); | ||
os.flush(); | ||
} else { | ||
client.close(); | ||
} | ||
} catch (IOException e) { | ||
closed = true; | ||
e.printStackTrace(); | ||
} | ||
} | ||
} | ||
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@Override | ||
public void close() throws IOException { | ||
if (client != null) client.close(); | ||
if (ss != null) ss.close(); | ||
} | ||
} | ||
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@DataProvider(name = "uris") | ||
public Object[][] urisData() { | ||
return new Object[][]{ | ||
{ getUri, postUri, hangUri, HttpClient.Version.HTTP_1_1 }, | ||
{ h2getUri, h2postUri, h2hangUri, HttpClient.Version.HTTP_2 } | ||
}; | ||
} | ||
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@Test(dataProvider = "uris") | ||
public void test(URI getUri, URI postUri, URI hangUri, HttpClient.Version version) throws IOException, InterruptedException { | ||
HttpClient client = HttpClient.newBuilder() | ||
.version(version) | ||
.build(); | ||
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HttpRequest getRequest = HttpRequest.newBuilder(getUri) | ||
.GET() | ||
.build(); | ||
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HttpRequest postRequest = HttpRequest.newBuilder(postUri) | ||
.POST(HttpRequest.BodyPublishers.ofString("Sample Post")) | ||
.expectContinue(true) | ||
.build(); | ||
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HttpRequest hangRequest = HttpRequest.newBuilder(hangUri) | ||
.POST(HttpRequest.BodyPublishers.ofString("Sample Post")) | ||
.expectContinue(true) | ||
.build(); | ||
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CompletableFuture<HttpResponse<String>> cf = client.sendAsync(getRequest, HttpResponse.BodyHandlers.ofString()); | ||
HttpResponse<String> resp = cf.join(); | ||
System.err.println("Response Headers: " + resp.headers()); | ||
System.err.println("Response Status Code: " + resp.statusCode()); | ||
assertEquals(resp.statusCode(), 200); | ||
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cf = client.sendAsync(postRequest, HttpResponse.BodyHandlers.ofString()); | ||
resp = cf.join(); | ||
System.err.println("Response Headers: " + resp.headers()); | ||
System.err.println("Response Status Code: " + resp.statusCode()); | ||
assertEquals(resp.statusCode(), 200); | ||
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cf = client.sendAsync(hangRequest, HttpResponse.BodyHandlers.ofString()); | ||
resp = cf.join(); | ||
System.err.println("Response Headers: " + resp.headers()); | ||
System.err.println("Response Status Code: " + resp.statusCode()); | ||
assertEquals(resp.statusCode(), 417); | ||
} | ||
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} |
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