Java example source code file (HttpClientCodecTest.java)
The HttpClientCodecTest.java Java example source code/*
* Copyright 2012 The Netty Project
*
* The Netty Project licenses this file to you 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.netty.handler.codec.http;
import io.netty.bootstrap.Bootstrap;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.buffer.Unpooled;
import io.netty.channel.Channel;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelFutureListener;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.channel.embedded.EmbeddedChannel;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;
import io.netty.handler.codec.CodecException;
import io.netty.handler.codec.PrematureChannelClosureException;
import io.netty.util.CharsetUtil;
import io.netty.util.NetUtil;
import org.junit.Test;
import java.net.InetSocketAddress;
import java.util.concurrent.CountDownLatch;
import static io.netty.util.ReferenceCountUtil.release;
import static io.netty.util.ReferenceCountUtil.releaseLater;
import static java.util.concurrent.TimeUnit.SECONDS;
import static org.hamcrest.CoreMatchers.instanceOf;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
public class HttpClientCodecTest {
private static final String RESPONSE = "HTTP/1.0 200 OK\r\n" + "Date: Fri, 31 Dec 1999 23:59:59 GMT\r\n" +
"Content-Type: text/html\r\n" + "Content-Length: 28\r\n" + "\r\n"
+ "<html>\r\n";
private static final String INCOMPLETE_CHUNKED_RESPONSE = "HTTP/1.1 200 OK\r\n" + "Content-Type: text/plain\r\n" +
"Transfer-Encoding: chunked\r\n" + "\r\n" +
"5\r\n" + "first\r\n" + "6\r\n" + "second\r\n" + "0\r\n";
private static final String CHUNKED_RESPONSE = INCOMPLETE_CHUNKED_RESPONSE + "\r\n";
@Test
public void testFailsNotOnRequestResponse() {
HttpClientCodec codec = new HttpClientCodec(4096, 8192, 8192, true);
EmbeddedChannel ch = new EmbeddedChannel(codec);
ch.writeOutbound(new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.GET, "http://localhost/"));
ch.writeInbound(Unpooled.copiedBuffer(RESPONSE, CharsetUtil.ISO_8859_1));
ch.finish();
for (;;) {
Object msg = ch.readOutbound();
if (msg == null) {
break;
}
release(msg);
}
for (;;) {
Object msg = ch.readInbound();
if (msg == null) {
break;
}
release(msg);
}
}
@Test
public void testFailsNotOnRequestResponseChunked() {
HttpClientCodec codec = new HttpClientCodec(4096, 8192, 8192, true);
EmbeddedChannel ch = new EmbeddedChannel(codec);
ch.writeOutbound(new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.GET, "http://localhost/"));
ch.writeInbound(Unpooled.copiedBuffer(CHUNKED_RESPONSE, CharsetUtil.ISO_8859_1));
ch.finish();
for (;;) {
Object msg = ch.readOutbound();
if (msg == null) {
break;
}
release(msg);
}
for (;;) {
Object msg = ch.readInbound();
if (msg == null) {
break;
}
release(msg);
}
}
@Test
public void testFailsOnMissingResponse() {
HttpClientCodec codec = new HttpClientCodec(4096, 8192, 8192, true);
EmbeddedChannel ch = new EmbeddedChannel(codec);
assertTrue(ch.writeOutbound(new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.GET,
"http://localhost/")));
assertNotNull(releaseLater(ch.readOutbound()));
try {
ch.finish();
fail();
} catch (CodecException e) {
assertTrue(e instanceof PrematureChannelClosureException);
}
}
@Test
public void testFailsOnIncompleteChunkedResponse() {
HttpClientCodec codec = new HttpClientCodec(4096, 8192, 8192, true);
EmbeddedChannel ch = new EmbeddedChannel(codec);
ch.writeOutbound(releaseLater(
new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.GET, "http://localhost/")));
assertNotNull(releaseLater(ch.readOutbound()));
assertNull(ch.readInbound());
ch.writeInbound(releaseLater(
Unpooled.copiedBuffer(INCOMPLETE_CHUNKED_RESPONSE, CharsetUtil.ISO_8859_1)));
assertThat(releaseLater(ch.readInbound()), instanceOf(HttpResponse.class));
assertThat(releaseLater(ch.readInbound()), instanceOf(HttpContent.class)); // Chunk 'first'
assertThat(releaseLater(ch.readInbound()), instanceOf(HttpContent.class)); // Chunk 'second'
assertNull(ch.readInbound());
try {
ch.finish();
fail();
} catch (CodecException e) {
assertTrue(e instanceof PrematureChannelClosureException);
}
}
@Test
public void testServerCloseSocketInputProvidesData() throws InterruptedException {
ServerBootstrap sb = new ServerBootstrap();
Bootstrap cb = new Bootstrap();
final CountDownLatch serverChannelLatch = new CountDownLatch(1);
final CountDownLatch responseRecievedLatch = new CountDownLatch(1);
try {
sb.group(new NioEventLoopGroup(2));
sb.channel(NioServerSocketChannel.class);
sb.childHandler(new ChannelInitializer<Channel>() {
@Override
protected void initChannel(Channel ch) throws Exception {
// Don't use the HttpServerCodec, because we don't want to have content-length or anything added.
ch.pipeline().addLast(new HttpRequestDecoder(4096, 8192, 8192, true));
ch.pipeline().addLast(new HttpObjectAggregator(4096));
ch.pipeline().addLast(new SimpleChannelInboundHandler<FullHttpRequest>() {
@Override
protected void channelRead0(ChannelHandlerContext ctx, FullHttpRequest msg) {
// This is just a simple demo...don't block in IO
assertTrue(ctx.channel() instanceof SocketChannel);
final SocketChannel sChannel = (SocketChannel) ctx.channel();
/**
* The point of this test is to not add any content-length or content-encoding headers
* and the client should still handle this.
* See <a href="https://tools.ietf.org/html/rfc7230#section-3.3.3">RFC 7230, 3.3.3.
*/
sChannel.writeAndFlush(Unpooled.wrappedBuffer(("HTTP/1.0 200 OK\r\n" +
"Date: Fri, 31 Dec 1999 23:59:59 GMT\r\n" +
"Content-Type: text/html\r\n\r\n").getBytes(CharsetUtil.ISO_8859_1)))
.addListener(new ChannelFutureListener() {
@Override
public void operationComplete(ChannelFuture future) throws Exception {
assertTrue(future.isSuccess());
sChannel.writeAndFlush(Unpooled.wrappedBuffer(
"<html>hello half closed!\r\n"
.getBytes(CharsetUtil.ISO_8859_1)))
.addListener(new ChannelFutureListener() {
@Override
public void operationComplete(ChannelFuture future) throws Exception {
assertTrue(future.isSuccess());
sChannel.shutdownOutput();
}
});
}
});
}
});
serverChannelLatch.countDown();
}
});
cb.group(new NioEventLoopGroup(1));
cb.channel(NioSocketChannel.class);
cb.option(ChannelOption.ALLOW_HALF_CLOSURE, true);
cb.handler(new ChannelInitializer<Channel>() {
@Override
protected void initChannel(Channel ch) throws Exception {
ch.pipeline().addLast(new HttpClientCodec(4096, 8192, 8192, true, true));
ch.pipeline().addLast(new HttpObjectAggregator(4096));
ch.pipeline().addLast(new SimpleChannelInboundHandler<FullHttpResponse>() {
@Override
protected void channelRead0(ChannelHandlerContext ctx, FullHttpResponse msg) {
responseRecievedLatch.countDown();
}
});
}
});
Channel serverChannel = sb.bind(new InetSocketAddress(0)).sync().channel();
int port = ((InetSocketAddress) serverChannel.localAddress()).getPort();
ChannelFuture ccf = cb.connect(new InetSocketAddress(NetUtil.LOCALHOST, port));
assertTrue(ccf.awaitUninterruptibly().isSuccess());
Channel clientChannel = ccf.channel();
assertTrue(serverChannelLatch.await(5, SECONDS));
clientChannel.writeAndFlush(new DefaultHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.GET, "/"));
assertTrue(responseRecievedLatch.await(5, SECONDS));
} finally {
sb.config().group().shutdownGracefully();
sb.config().childGroup().shutdownGracefully();
cb.config().group().shutdownGracefully();
}
}
}
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