/*
* Copyright (c) 2015, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
* WSO2 Inc. 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.wso2.carbon.inbound.endpoint.protocol.websocket;
import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.socket.SocketChannel;
import io.netty.handler.codec.http.HttpObjectAggregator;
import io.netty.handler.codec.http.HttpServerCodec;
import io.netty.handler.codec.http.websocketx.WebSocketFrameAggregator;
import io.netty.handler.ssl.SslHandler;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.wso2.carbon.inbound.endpoint.protocol.websocket.ssl.InboundWebsocketSSLConfiguration;
import org.wso2.carbon.inbound.endpoint.protocol.websocket.ssl.SSLHandlerFactory;
import java.util.ArrayList;
public class InboundWebsocketChannelInitializer extends ChannelInitializer<SocketChannel> {
private static final Logger log = LoggerFactory.getLogger(InboundWebsocketChannelInitializer.class);
private InboundWebsocketSSLConfiguration sslConfiguration;
private int clientBroadcastLevel;
private String outflowDispatchSequence;
private String outflowErrorSequence;
private ChannelHandler pipelineHandler;
private boolean dispatchToCustomSequence;
private ArrayList<AbstractSubprotocolHandler> subprotocolHandlers;
private int portOffset;
public InboundWebsocketChannelInitializer() {
}
public void setSslConfiguration(InboundWebsocketSSLConfiguration sslConfiguration) {
this.sslConfiguration = sslConfiguration;
}
public void setPipelineHandler(ChannelHandler name) {
this.pipelineHandler = name;
}
public void setDispatchToCustomSequence(String dispatchToCustomSequence) {
this.dispatchToCustomSequence = Boolean.parseBoolean(dispatchToCustomSequence);
}
public void setClientBroadcastLevel(int clientBroadcastLevel) {
this.clientBroadcastLevel = clientBroadcastLevel;
}
public void setOutflowDispatchSequence(String outflowDispatchSequence) {
this.outflowDispatchSequence = outflowDispatchSequence;
}
public void setOutflowErrorSequence(String outflowErrorSequence) {
this.outflowErrorSequence = outflowErrorSequence;
}
public void setSubprotocolHandlers(ArrayList<AbstractSubprotocolHandler> subprotocolHandlers) {
this.subprotocolHandlers = subprotocolHandlers;
}
@Override
protected void initChannel(SocketChannel websocketChannel) throws Exception {
if (sslConfiguration != null) {
SslHandler sslHandler = new SSLHandlerFactory(sslConfiguration).create();
websocketChannel.pipeline().addLast("ssl", sslHandler);
}
ChannelPipeline p = websocketChannel.pipeline();
p.addLast("codec", new HttpServerCodec());
p.addLast("aggregator", new HttpObjectAggregator(65536));
p.addLast("frameAggregator", new WebSocketFrameAggregator(Integer.MAX_VALUE));
InboundWebsocketSourceHandler sourceHandler = new InboundWebsocketSourceHandler();
sourceHandler.setClientBroadcastLevel(clientBroadcastLevel);
sourceHandler.setDispatchToCustomSequence(dispatchToCustomSequence);
sourceHandler.setPortOffset(portOffset);
if (outflowDispatchSequence != null)
sourceHandler.setOutflowDispatchSequence(outflowDispatchSequence);
if (outflowErrorSequence != null)
sourceHandler.setOutflowErrorSequence(outflowErrorSequence);
if (subprotocolHandlers != null)
sourceHandler.setSubprotocolHandlers(subprotocolHandlers);
if (pipelineHandler != null)
p.addLast("pipelineHandler", pipelineHandler.getClass().getConstructor().newInstance());
p.addLast("handler", sourceHandler);
}
public void setPortOffset(int portOffset) {
this.portOffset = portOffset;
}
}