netty5/testsuite-http2/src/main/java/io/netty/testsuite/http2/HelloWorldHttp1Handler.java

81 lines
3.2 KiB
Java

/*
* Copyright 2017 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.testsuite.http2;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufUtil;
import io.netty.channel.ChannelFutureListener;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.handler.codec.http.DefaultFullHttpResponse;
import io.netty.handler.codec.http.FullHttpRequest;
import io.netty.handler.codec.http.FullHttpResponse;
import io.netty.handler.codec.http.HttpHeaderValues;
import io.netty.handler.codec.http.HttpUtil;
import static io.netty.handler.codec.http.HttpHeaderNames.CONNECTION;
import static io.netty.handler.codec.http.HttpHeaderNames.CONTENT_LENGTH;
import static io.netty.handler.codec.http.HttpHeaderNames.CONTENT_TYPE;
import static io.netty.handler.codec.http.HttpResponseStatus.CONTINUE;
import static io.netty.handler.codec.http.HttpResponseStatus.OK;
import static io.netty.handler.codec.http.HttpVersion.HTTP_1_1;
import static java.util.Objects.requireNonNull;
/**
* HTTP handler that responds with a "Hello World"
*/
public class HelloWorldHttp1Handler extends SimpleChannelInboundHandler<FullHttpRequest> {
private final String establishApproach;
HelloWorldHttp1Handler(String establishApproach) {
this.establishApproach = requireNonNull(establishApproach, "establishApproach");
}
@Override
public void messageReceived(ChannelHandlerContext ctx, FullHttpRequest req) throws Exception {
if (HttpUtil.is100ContinueExpected(req)) {
ctx.write(new DefaultFullHttpResponse(HTTP_1_1, CONTINUE, ctx.alloc().buffer(0)));
}
boolean keepAlive = HttpUtil.isKeepAlive(req);
ByteBuf content = ctx.alloc().buffer();
content.writeBytes(HelloWorldHttp2Handler.RESPONSE_BYTES.duplicate());
ByteBufUtil.writeAscii(content, " - via " + req.protocolVersion() + " (" + establishApproach + ")");
FullHttpResponse response = new DefaultFullHttpResponse(HTTP_1_1, OK, content);
response.headers().set(CONTENT_TYPE, "text/plain; charset=UTF-8");
response.headers().setInt(CONTENT_LENGTH, response.content().readableBytes());
if (!keepAlive) {
ctx.write(response).addListener(ChannelFutureListener.CLOSE);
} else {
response.headers().set(CONNECTION, HttpHeaderValues.KEEP_ALIVE);
ctx.write(response);
}
}
@Override
public void channelReadComplete(ChannelHandlerContext ctx) throws Exception {
ctx.flush();
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
cause.printStackTrace();
ctx.close();
}
}