+++ /dev/null
-/*
- * 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 org.opendaylight.yangtools.websocket.server;
-
-import static io.netty.handler.codec.http.HttpHeaders.isKeepAlive;
-import static io.netty.handler.codec.http.HttpHeaders.setContentLength;
-import static io.netty.handler.codec.http.HttpHeaders.Names.HOST;
-import static io.netty.handler.codec.http.HttpMethod.GET;
-import static io.netty.handler.codec.http.HttpResponseStatus.BAD_REQUEST;
-import static io.netty.handler.codec.http.HttpResponseStatus.FORBIDDEN;
-import static io.netty.handler.codec.http.HttpVersion.HTTP_1_1;
-
-import io.netty.buffer.ByteBuf;
-import io.netty.buffer.Unpooled;
-import io.netty.channel.ChannelFuture;
-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.websocketx.CloseWebSocketFrame;
-import io.netty.handler.codec.http.websocketx.PingWebSocketFrame;
-import io.netty.handler.codec.http.websocketx.PongWebSocketFrame;
-import io.netty.handler.codec.http.websocketx.TextWebSocketFrame;
-import io.netty.handler.codec.http.websocketx.WebSocketFrame;
-import io.netty.handler.codec.http.websocketx.WebSocketServerHandshaker;
-import io.netty.handler.codec.http.websocketx.WebSocketServerHandshakerFactory;
-import io.netty.util.CharsetUtil;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-/**
- * Handles handshakes and messages
- */
-@Deprecated
-public class WebSocketServerHandler extends SimpleChannelInboundHandler<Object> {
- private static final Logger LOG = LoggerFactory.getLogger(WebSocketServerHandler.class);
-
- private static final String WEBSOCKET_PATH = "/websocket";
-
- private WebSocketServerHandshaker handshaker;
-
- @Override
- public void channelRead0(final ChannelHandlerContext ctx, final Object msg) throws Exception {
- if (msg instanceof FullHttpRequest) {
- handleHttpRequest(ctx, (FullHttpRequest) msg);
- } else if (msg instanceof WebSocketFrame) {
- handleWebSocketFrame(ctx, (WebSocketFrame) msg);
- }
- }
-
- @Override
- public void channelReadComplete(final ChannelHandlerContext ctx) throws Exception {
- ctx.flush();
- }
-
- private void handleHttpRequest(final ChannelHandlerContext ctx, final FullHttpRequest req) throws Exception {
- // Handle a bad request.
- if (!req.getDecoderResult().isSuccess()) {
- sendHttpResponse(ctx, req, new DefaultFullHttpResponse(HTTP_1_1, BAD_REQUEST));
- return;
- }
-
- // Allow only GET methods.
- if (req.getMethod() != GET) {
- sendHttpResponse(ctx, req, new DefaultFullHttpResponse(HTTP_1_1, FORBIDDEN));
- return;
- }
-
-
- // Handshake
- WebSocketServerHandshakerFactory wsFactory = new WebSocketServerHandshakerFactory(
- getWebSocketLocation(req), null, false);
- handshaker = wsFactory.newHandshaker(req);
- if (handshaker == null) {
- WebSocketServerHandshakerFactory.sendUnsupportedWebSocketVersionResponse(ctx.channel());
- } else {
- handshaker.handshake(ctx.channel(), req);
- }
- }
-
- private void handleWebSocketFrame(final ChannelHandlerContext ctx, final WebSocketFrame frame) {
-
- // Check for closing frame
- if (frame instanceof CloseWebSocketFrame) {
- handshaker.close(ctx.channel(), (CloseWebSocketFrame) frame.retain());
- return;
- }
- if (frame instanceof PingWebSocketFrame) {
- ctx.channel().write(new PongWebSocketFrame(frame.content().retain()));
- return;
- }
- if (!(frame instanceof TextWebSocketFrame)) {
- throw new UnsupportedOperationException(String.format("%s frame types not supported", frame.getClass()
- .getName()));
- }
-
- // Send the uppercase string back.
- String request = ((TextWebSocketFrame) frame).text();
- LOG.debug(String.format("%s received %s", ctx.channel(), request));
- ctx.channel().write(new TextWebSocketFrame(request.toUpperCase()));
- }
-
- private static void sendHttpResponse(
- final ChannelHandlerContext ctx, final FullHttpRequest req, final FullHttpResponse res) {
- // Generate an error page if response getStatus code is not OK (200).
- if (res.getStatus().code() != 200) {
- ByteBuf buf = Unpooled.copiedBuffer(res.getStatus().toString(), CharsetUtil.UTF_8);
- res.content().writeBytes(buf);
- buf.release();
- setContentLength(res, res.content().readableBytes());
- }
-
- // Send the response and close the connection if necessary.
- ChannelFuture f = ctx.channel().writeAndFlush(res);
- if (!isKeepAlive(req) || res.getStatus().code() != 200) {
- f.addListener(ChannelFutureListener.CLOSE);
- }
- }
-
- @Override
- public void exceptionCaught(final ChannelHandlerContext ctx, final Throwable cause) throws Exception {
- LOG.info("Exception caught {}",cause);
- ctx.close();
- }
-
- private static String getWebSocketLocation(final FullHttpRequest req) {
- return "ws://" + req.headers().get(HOST) + WEBSOCKET_PATH;
- }
-
-
-}
Code Review / yangtools.git / blobdiff