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* Copyright (c) 2015, 2018, 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.
*
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import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UncheckedIOException;
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.HttpRequest.BodyPublishers;
import java.net.http.HttpResponse;
import java.net.http.HttpResponse.BodyHandlers;
import java.net.http.HttpTimeoutException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Flow;
import java.util.concurrent.TimeoutException;
import java.util.concurrent.TimeUnit;
import java.util.function.Supplier;
import static java.lang.System.err;
import static java.nio.charset.StandardCharsets.US_ASCII;
import static java.nio.charset.StandardCharsets.UTF_8;
/**
* @test
* @bug 8151441
* @summary Request body of incorrect (larger or smaller) sizes than that
* reported by the body publisher
* @run main/othervm ShortRequestBody
*/
public class ShortRequestBody {
static final Path testSrc = Paths.get(System.getProperty("test.src", "."));
// Some body types ( sources ) for testing.
static final String STRING_BODY = "Hello world";
static final byte[] BYTE_ARRAY_BODY = new byte[] {
(byte)0xCA, (byte)0xFE, (byte)0xBA, (byte)0xBE };
static final Path FILE_BODY = testSrc.resolve("docs").resolve("files").resolve("foo.txt");
// Body lengths and offsets ( amount to be wrong by ), to make coordination
// between client and server easier.
static final int[] BODY_LENGTHS = new int[] { STRING_BODY.length(),
BYTE_ARRAY_BODY.length,
fileSize(FILE_BODY) };
static final int[] BODY_OFFSETS = new int[] { 0, +1, -1, +2, -2, +3, -3 };
// A delegating Body Publisher. Subtypes will have a concrete body type.
static abstract class AbstractDelegateRequestBody
implements HttpRequest.BodyPublisher {
final HttpRequest.BodyPublisher delegate;
final long contentLength;
AbstractDelegateRequestBody(HttpRequest.BodyPublisher delegate,
long contentLength) {
this.delegate = delegate;
this.contentLength = contentLength;
}
@Override
public void subscribe(Flow.Subscriber<? super ByteBuffer> subscriber) {
delegate.subscribe(subscriber);
}
@Override
public long contentLength() { return contentLength; /* may be wrong! */ }
}
// Request body Publishers that may generate a different number of actual
// bytes to that of what is reported through their {@code contentLength}.
static class StringRequestBody extends AbstractDelegateRequestBody {
StringRequestBody(String body, int additionalLength) {
super(HttpRequest.BodyPublishers.ofString(body),
body.getBytes(UTF_8).length + additionalLength);
}
}
static class ByteArrayRequestBody extends AbstractDelegateRequestBody {
ByteArrayRequestBody(byte[] body, int additionalLength) {
super(BodyPublishers.ofByteArray(body),
body.length + additionalLength);
}
}
static class FileRequestBody extends AbstractDelegateRequestBody {
FileRequestBody(Path path, int additionalLength) throws IOException {
super(BodyPublishers.ofFile(path),
Files.size(path) + additionalLength);
}
}
// ---
public static void main(String[] args) throws Exception {
HttpClient sharedClient = HttpClient.newHttpClient();
List<Supplier<HttpClient>> clientSuppliers = new ArrayList<>();
clientSuppliers.add(() -> HttpClient.newHttpClient());
clientSuppliers.add(() -> sharedClient);
try (Server server = new Server()) {
for (Supplier<HttpClient> cs : clientSuppliers) {
err.println("\n---- next supplier ----\n");
URI uri = new URI("http://127.0.0.1:" + server.getPort() + "/");
// sanity ( 6 requests to keep client and server offsets easy to workout )
success(cs, uri, new StringRequestBody(STRING_BODY, 0));
success(cs, uri, new ByteArrayRequestBody(BYTE_ARRAY_BODY, 0));
success(cs, uri, new FileRequestBody(FILE_BODY, 0));
success(cs, uri, new StringRequestBody(STRING_BODY, 0));
success(cs, uri, new ByteArrayRequestBody(BYTE_ARRAY_BODY, 0));
success(cs, uri, new FileRequestBody(FILE_BODY, 0));
for (int i = 1; i < BODY_OFFSETS.length; i++) {
failureBlocking(cs, uri, new StringRequestBody(STRING_BODY, BODY_OFFSETS[i]));
failureBlocking(cs, uri, new ByteArrayRequestBody(BYTE_ARRAY_BODY, BODY_OFFSETS[i]));
failureBlocking(cs, uri, new FileRequestBody(FILE_BODY, BODY_OFFSETS[i]));
failureNonBlocking(cs, uri, new StringRequestBody(STRING_BODY, BODY_OFFSETS[i]));
failureNonBlocking(cs, uri, new ByteArrayRequestBody(BYTE_ARRAY_BODY, BODY_OFFSETS[i]));
failureNonBlocking(cs, uri, new FileRequestBody(FILE_BODY, BODY_OFFSETS[i]));
}
}
}
}
static void success(Supplier<HttpClient> clientSupplier,
URI uri,
HttpRequest.BodyPublisher publisher)
throws Exception
{
CompletableFuture<HttpResponse<Void>> cf;
HttpRequest request = HttpRequest.newBuilder(uri)
.POST(publisher)
.build();
cf = clientSupplier.get().sendAsync(request, BodyHandlers.discarding());
HttpResponse<Void> resp = cf.get(30, TimeUnit.SECONDS);
err.println("Response code: " + resp.statusCode());
check(resp.statusCode() == 200, null,
"Expected 200, got ", resp.statusCode());
}
static void failureNonBlocking(Supplier<HttpClient> clientSupplier,
URI uri,
HttpRequest.BodyPublisher publisher)
throws Exception
{
CompletableFuture<HttpResponse<Void>> cf;
HttpRequest request = HttpRequest.newBuilder(uri)
.POST(publisher)
.build();
cf = clientSupplier.get().sendAsync(request, BodyHandlers.discarding());
try {
HttpResponse<Void> r = cf.get(30, TimeUnit.SECONDS);
throw new RuntimeException("Unexpected response: " + r.statusCode());
} catch (TimeoutException x) {
throw new RuntimeException("Unexpected timeout", x);
} catch (ExecutionException expected) {
err.println("Caught expected: " + expected);
Throwable t = expected.getCause();
check(t instanceof IOException, t,
"Expected cause IOException, but got: ", t);
String msg = t.getMessage();
check(msg.contains("Too many") || msg.contains("Too few"),
t, "Expected Too many|Too few, got: ", t);
}
}
static void failureBlocking(Supplier<HttpClient> clientSupplier,
URI uri,
HttpRequest.BodyPublisher publisher)
throws Exception
{
HttpRequest request = HttpRequest.newBuilder(uri)
.POST(publisher)
.build();
try {
HttpResponse<Void> r = clientSupplier.get()
.send(request, BodyHandlers.discarding());
throw new RuntimeException("Unexpected response: " + r.statusCode());
} catch (HttpTimeoutException x) {
throw new RuntimeException("Unexpected timeout", x);
} catch (IOException expected) {
err.println("Caught expected: " + expected);
String msg = expected.getMessage();
check(msg.contains("Too many") || msg.contains("Too few"),
expected,"Expected Too many|Too few, got: ", expected);
}
}
static class Server extends Thread implements AutoCloseable {
static String RESPONSE = "HTTP/1.1 200 OK\r\n" +
"Connection: close\r\n"+
"Content-length: 0\r\n\r\n";
private final ServerSocket ss;
private volatile boolean closed;
Server() throws IOException {
super("Test-Server");
ss = new ServerSocket();
ss.setReuseAddress(false);
ss.bind(new InetSocketAddress(0));
this.start();
}
int getPort() { return ss.getLocalPort(); }
@Override
public void run() {
int count = 0;
int offset = 0;
while (!closed) {
try (Socket s = ss.accept()) {
err.println("Server: got connection");
InputStream is = s.getInputStream();
readRequestHeaders(is);
byte[] ba = new byte[1024];
int length = BODY_LENGTHS[count % 3];
length += BODY_OFFSETS[offset];
err.println("Server: count=" + count + ", offset=" + offset);
err.println("Server: expecting " +length+ " bytes");
int read = is.readNBytes(ba, 0, length);
err.println("Server: actually read " + read + " bytes");
// Update the counts before replying, to prevent the
// client-side racing reset with this thread.
count++;
if (count % 6 == 0) // 6 is the number of failure requests per offset
offset++;
if (count % 42 == 0) {
count = 0; // reset, for second iteration
offset = 0;
}
if (read < length) {
// no need to reply, client has already closed
// ensure closed
if (is.read() != -1)
new AssertionError("Unexpected read");
} else {
OutputStream os = s.getOutputStream();
err.println("Server: writing "
+ RESPONSE.getBytes(US_ASCII).length + " bytes");
os.write(RESPONSE.getBytes(US_ASCII));
}
} catch (IOException e) {
if (!closed)
System.out.println("Unexpected" + e);
}
}
}
@Override
public void close() {
if (closed)
return;
closed = true;
try {
ss.close();
} catch (IOException e) {
throw new UncheckedIOException("Unexpected", e);
}
}
}
static final byte[] requestEnd = new byte[] {'\r', '\n', '\r', '\n' };
// Read until the end of a HTTP request headers
static void readRequestHeaders(InputStream is) throws IOException {
int requestEndCount = 0, r;
while ((r = is.read()) != -1) {
if (r == requestEnd[requestEndCount]) {
requestEndCount++;
if (requestEndCount == 4) {
break;
}
} else {
requestEndCount = 0;
}
}
}
static int fileSize(Path p) {
try { return (int) Files.size(p); }
catch (IOException x) { throw new UncheckedIOException(x); }
}
static boolean check(boolean cond, Throwable t, Object... failedArgs) {
if (cond)
return true;
// We are going to fail...
StringBuilder sb = new StringBuilder();
for (Object o : failedArgs)
sb.append(o);
throw new RuntimeException(sb.toString(), t);
}
}