/*
* 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 java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
import io.undertow.server.ConduitWrapper;
import io.undertow.server.HttpHandler;
import io.undertow.server.HttpServerExchange;
import io.undertow.testutils.DefaultServer;
import io.undertow.testutils.HttpClientUtils;
import io.undertow.util.ConduitFactory;
import io.undertow.util.Headers;
import io.undertow.testutils.TestHttpClient;
import io.undertow.util.StatusCodes;
import org.apache.http.HttpResponse;
import org.apache.http.HttpVersion;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.params.CoreProtocolPNames;
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.xnio.channels.StreamSourceChannel;
import org.xnio.conduits.AbstractStreamSinkConduit;
import org.xnio.conduits.StreamSinkConduit;
/**
* Test that uses a fake channel that returns 0 a lot, to make sure that resume writes works correclty
*
* @author Stuart Douglas
*/
@RunWith(DefaultServer.class)
public class ResumeWritesTestCase {
public static final String HELLO_WORLD = "Hello World";
@Test
public void testResumeWritesFixedLength() throws IOException {
DefaultServer.setRootHandler(new HttpHandler() {
@Override
public void handleRequest(final HttpServerExchange exchange) throws Exception {
exchange.addResponseWrapper(new ReturnZeroWrapper());
exchange.getResponseHeaders().put(Headers.CONTENT_LENGTH, HELLO_WORLD.length());
exchange.getResponseSender().send(HELLO_WORLD);
}
});
TestHttpClient client = new TestHttpClient();
try {
HttpGet get = new HttpGet(DefaultServer.getDefaultServerURL() + "/path");
HttpResponse result = client.execute(get);
Assert.assertEquals(StatusCodes.OK, result.getStatusLine().getStatusCode());
Assert.assertEquals(HELLO_WORLD, HttpClientUtils.readResponse(result));
result = client.execute(get);
Assert.assertEquals(StatusCodes.OK, result.getStatusLine().getStatusCode());
Assert.assertEquals(HELLO_WORLD, HttpClientUtils.readResponse(result));
result = client.execute(get);
Assert.assertEquals(StatusCodes.OK, result.getStatusLine().getStatusCode());
Assert.assertEquals(HELLO_WORLD, HttpClientUtils.readResponse(result));
} finally {
client.getConnectionManager().shutdown();
}
}
@Test
public void testResumeWritesChunked() throws IOException {
DefaultServer.setRootHandler(new HttpHandler() {
@Override
public void handleRequest(final HttpServerExchange exchange) throws Exception {
exchange.addResponseWrapper(new ReturnZeroWrapper());
exchange.getResponseSender().send(HELLO_WORLD);
}
});
TestHttpClient client = new TestHttpClient();
try {
HttpGet get = new HttpGet(DefaultServer.getDefaultServerURL() + "/path");
HttpResponse result = client.execute(get);
Assert.assertEquals(StatusCodes.OK, result.getStatusLine().getStatusCode());
Assert.assertEquals(HELLO_WORLD, HttpClientUtils.readResponse(result));
result = client.execute(get);
Assert.assertEquals(StatusCodes.OK, result.getStatusLine().getStatusCode());
Assert.assertEquals(HELLO_WORLD, HttpClientUtils.readResponse(result));
result = client.execute(get);
Assert.assertEquals(StatusCodes.OK, result.getStatusLine().getStatusCode());
Assert.assertEquals(HELLO_WORLD, HttpClientUtils.readResponse(result));
} finally {
client.getConnectionManager().shutdown();
}
}
@Test
public void testResumeWritesHttp10() throws IOException {
DefaultServer.setRootHandler(new HttpHandler() {
@Override
public void handleRequest(final HttpServerExchange exchange) throws Exception {
exchange.addResponseWrapper(new ReturnZeroWrapper());
exchange.getResponseSender().send(HELLO_WORLD);
}
});
TestHttpClient client = new TestHttpClient();
try {
HttpGet get = new HttpGet(DefaultServer.getDefaultServerURL() + "/path");
get.getParams().setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_0);
HttpResponse result = client.execute(get);
Assert.assertEquals(StatusCodes.OK, result.getStatusLine().getStatusCode());
Assert.assertEquals(HELLO_WORLD, HttpClientUtils.readResponse(result));
result = client.execute(get);
Assert.assertEquals(StatusCodes.OK, result.getStatusLine().getStatusCode());
Assert.assertEquals(HELLO_WORLD, HttpClientUtils.readResponse(result));
result = client.execute(get);
Assert.assertEquals(StatusCodes.OK, result.getStatusLine().getStatusCode());
Assert.assertEquals(HELLO_WORLD, HttpClientUtils.readResponse(result));
} finally {
client.getConnectionManager().shutdown();
}
}
private static class ReturnZeroWrapper implements ConduitWrapper<StreamSinkConduit> {
@Override
public StreamSinkConduit wrap(final ConduitFactory<StreamSinkConduit> factory, final HttpServerExchange exchange) {
return new AbstractStreamSinkConduit<StreamSinkConduit>(factory.create()) {
int c = 0;
@Override
public long transferFrom(final FileChannel src, final long position, final long count) throws IOException {
if(c++ % 100 != 90) return 0;
return super.transferFrom(src, position, count);
}
@Override
public long transferFrom(final StreamSourceChannel source, final long count, final ByteBuffer throughBuffer) throws IOException {
if(c++ % 100 != 90) return 0;
return super.transferFrom(source, count, throughBuffer);
}
@Override
public int write(final ByteBuffer src) throws IOException {
if(c++ % 100 != 90) return 0;
return super.write(src);
}
@Override
public long write(final ByteBuffer[] srcs, final int offs, final int len) throws IOException {
if(c++ % 100 != 90) return 0;
return super.write(srcs, offs, len);
}
@Override
public boolean flush() throws IOException {
if(c++ % 100 != 90) return false;
return super.flush();
}
};
}
}
}