/*
* JBoss, Home of Professional Open Source.
* Copyright 2014 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.undertow.server.handlers;
import io.undertow.io.IoCallback;
import io.undertow.io.Receiver;
import io.undertow.io.Sender;
import io.undertow.server.HttpHandler;
import io.undertow.server.HttpServerExchange;
import io.undertow.testutils.DefaultServer;
import io.undertow.testutils.HttpClientUtils;
import io.undertow.testutils.TestHttpClient;
import io.undertow.util.StatusCodes;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.runner.RunWith;
import java.io.IOException;
import java.io.OutputStream;
import java.net.Socket;
import java.nio.ByteBuffer;
import java.util.Deque;
import java.util.concurrent.LinkedBlockingDeque;
import java.util.concurrent.TimeUnit;
/**
* @author Stuart Douglas
*/
@RunWith(DefaultServer.class)
public class ReceiverTestCase {
public static final String HELLO_WORLD = "Hello World";
private static final LinkedBlockingDeque<IOException> EXCEPTIONS = new LinkedBlockingDeque<>();
public static final Receiver.ErrorCallback ERROR_CALLBACK = new Receiver.ErrorCallback() {
@Override
public void error(HttpServerExchange exchange, IOException e) {
EXCEPTIONS.add(e);
exchange.endExchange();
}
};
@BeforeClass
public static void setup() {
HttpHandler testFullString = new HttpHandler() {
@Override
public void handleRequest(final HttpServerExchange exchange) throws Exception {
exchange.getRequestReceiver().receiveFullString(new Receiver.FullStringCallback() {
@Override
public void handle(HttpServerExchange exchange, String message) {
exchange.getResponseSender().send(message);
}
}, ERROR_CALLBACK);
}
};
HttpHandler testPartialString = new HttpHandler() {
@Override
public void handleRequest(final HttpServerExchange exchange) throws Exception {
final StringBuilder sb = new StringBuilder();
exchange.getRequestReceiver().receivePartialString(new Receiver.PartialStringCallback() {
@Override
public void handle(HttpServerExchange exchange, String message, boolean last) {
sb.append(message);
if(last) {
exchange.getResponseSender().send(sb.toString());
}
}
}, ERROR_CALLBACK);
}
};
HttpHandler testFullBytes = new HttpHandler() {
@Override
public void handleRequest(final HttpServerExchange exchange) throws Exception {
exchange.getRequestReceiver().receiveFullBytes(new Receiver.FullBytesCallback() {
@Override
public void handle(HttpServerExchange exchange, byte[] message) {
exchange.getResponseSender().send(ByteBuffer.wrap(message));
}
}, ERROR_CALLBACK);
}
};
HttpHandler testPartialBytes = new HttpHandler() {
@Override
public void handleRequest(final HttpServerExchange exchange) throws Exception {
class CB implements Receiver.PartialBytesCallback, IoCallback {
final Receiver receiver;
final Sender sender;
CB(Receiver receiver, Sender sender) {
this.receiver = receiver;
this.sender = sender;
}
@Override
public void onComplete(HttpServerExchange exchange, Sender sender) {
receiver.resume();
}
@Override
public void onException(HttpServerExchange exchange, Sender sender, IOException exception) {
exception.printStackTrace();
exchange.setStatusCode(StatusCodes.INTERNAL_SERVER_ERROR);
exchange.endExchange();
}
@Override
public void handle(HttpServerExchange exchange, byte[] message, boolean last) {
receiver.pause();
sender.send(ByteBuffer.wrap(message), last ? IoCallback.END_EXCHANGE : this);
}
}
CB callback = new CB(exchange.getRequestReceiver(), exchange.getResponseSender());
exchange.getRequestReceiver().receivePartialBytes(callback);
}
};
final PathHandler handler = new PathHandler().addPrefixPath("/fullstring", testFullString)
.addPrefixPath("/partialstring", testPartialString)
.addPrefixPath("/fullbytes", testFullBytes)
.addPrefixPath("/partialbytes", testPartialBytes);
DefaultServer.setRootHandler(new HttpHandler() {
@Override
public void handleRequest(HttpServerExchange exchange) throws Exception {
Deque<String> block = exchange.getQueryParameters().get("blocking");
if(block != null) {
exchange.startBlocking();
exchange.dispatch(handler);
return;
}
handler.handleRequest(exchange);
}
});
}
@Test
public void testAsyncReceiveWholeString() {
doTest("/fullstring");
}
@Test
public void testAsyncReceivePartialString() {
doTest("/partialstring");
}
@Test
public void testAsyncReceiveWholeBytes() {
doTest("/fullbytes");
}
@Test
public void testAsyncReceiveWholeBytesFailed() throws Exception {
EXCEPTIONS.clear();
Socket socket = new Socket();
socket.connect(DefaultServer.getDefaultServerAddress());
StringBuilder sb = new StringBuilder();
for (int i = 0; i < 10000; ++i) {
sb.append("hello world\r\n");
}
//send a large request that is too small, then kill the socket
String request = "POST /fullbytes HTTP/1.1\r\nHost:localhost\r\nContent-Length:" + sb.length() + 100 + "\r\n\r\n" + sb.toString();
OutputStream outputStream = socket.getOutputStream();
outputStream.write(request.getBytes("US-ASCII"));
socket.getInputStream().close();
outputStream.close();
IOException e = EXCEPTIONS.poll(2, TimeUnit.SECONDS);
Assert.assertNotNull(e);
}
@Test
public void testAsyncReceivePartialBytes() {
doTest("/partialbytes");
}
@Test
public void testBlockingReceiveWholeString() {
doTest("/fullstring?blocking");
}
@Test
public void testBlockingReceivePartialString() {
doTest("/partialstring?blocking");
}
@Test
public void testBlockingReceiveWholeBytes() {
doTest("/fullbytes?blocking");
}
@Test
public void testBlockingReceivePartialBytes() {
doTest("/partialbytes?blocking");
}
public void doTest(String path) {
StringBuilder builder = new StringBuilder(1000 * HELLO_WORLD.length());
for (int i = 0; i < 10; ++i) {
try {
for (int j = 0; j < 1000; ++j) {
builder.append(HELLO_WORLD);
}
String message = builder.toString();
runTest(message, path);
} catch (Throwable e) {
throw new RuntimeException("test failed with i equal to " + i, e);
}
}
}
public void runTest(final String message, String url) throws IOException {
TestHttpClient client = new TestHttpClient();
try {
String uri = DefaultServer.getDefaultServerURL() + url;
HttpPost post = new HttpPost(uri);
post.setEntity(new StringEntity(message));
HttpResponse result = client.execute(post);
Assert.assertEquals(StatusCodes.OK, result.getStatusLine().getStatusCode());
final String response = HttpClientUtils.readResponse(result);
Assert.assertEquals(message.length(), response.length());
Assert.assertEquals(message, response);
} finally {
client.getConnectionManager().shutdown();
}
}
}