223efc5f99
Motivation: The examples have not been updated since long time ago, showing various issues fixed in this commit. Modifications: - Overall simplification to reduce LoC - Use system properties to get options instead of parsing args. - Minimize option validation - Just use System.out/err instead of Logger - Do not pass config as parameters - just access it directly - Move the main logic to main(String[]) instead of creating a new instance meaninglessly - Update netty-build-21 to make checkstyle not complain - Remove 'throws Exception' clause if possible - Line wrap at 120 (previously at 80) - Add an option to enable SSL for most examples - Use ChannelFuture.sync() instead of await() - Use System.out for the actual result. Use System.err otherwise. - Delete examples that are not very useful: - applet - websocket/html5 - websocketx/sslserver - localecho/multithreaded - Add run-example.sh which simplifies launching an example from command line - Rewrite FileServer example Result: Shorter and simpler examples. A user can focus more on what it actually does than miscellaneous stuff. A user can launch an example very easily.
76 lines
2.9 KiB
Java
76 lines
2.9 KiB
Java
/*
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* Copyright 2012 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.example.socksproxy;
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import io.netty.channel.ChannelHandler;
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import io.netty.channel.ChannelHandlerContext;
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import io.netty.channel.SimpleChannelInboundHandler;
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import io.netty.handler.codec.socks.SocksAuthResponse;
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import io.netty.handler.codec.socks.SocksAuthScheme;
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import io.netty.handler.codec.socks.SocksAuthStatus;
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import io.netty.handler.codec.socks.SocksCmdRequest;
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import io.netty.handler.codec.socks.SocksCmdRequestDecoder;
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import io.netty.handler.codec.socks.SocksCmdType;
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import io.netty.handler.codec.socks.SocksInitResponse;
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import io.netty.handler.codec.socks.SocksRequest;
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@ChannelHandler.Sharable
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public final class SocksServerHandler extends SimpleChannelInboundHandler<SocksRequest> {
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@Override
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public void channelRead0(ChannelHandlerContext ctx, SocksRequest socksRequest) throws Exception {
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switch (socksRequest.requestType()) {
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case INIT: {
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// auth support example
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//ctx.pipeline().addFirst(new SocksAuthRequestDecoder());
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//ctx.write(new SocksInitResponse(SocksAuthScheme.AUTH_PASSWORD));
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ctx.pipeline().addFirst(new SocksCmdRequestDecoder());
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ctx.write(new SocksInitResponse(SocksAuthScheme.NO_AUTH));
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break;
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}
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case AUTH:
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ctx.pipeline().addFirst(new SocksCmdRequestDecoder());
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ctx.write(new SocksAuthResponse(SocksAuthStatus.SUCCESS));
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break;
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case CMD:
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SocksCmdRequest req = (SocksCmdRequest) socksRequest;
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if (req.cmdType() == SocksCmdType.CONNECT) {
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ctx.pipeline().addLast(new SocksServerConnectHandler());
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ctx.pipeline().remove(this);
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ctx.fireChannelRead(socksRequest);
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} else {
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ctx.close();
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}
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break;
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case UNKNOWN:
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ctx.close();
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break;
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}
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}
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@Override
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public void channelReadComplete(ChannelHandlerContext ctx) {
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ctx.flush();
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}
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@Override
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public void exceptionCaught(ChannelHandlerContext ctx, Throwable throwable) {
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throwable.printStackTrace();
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SocksServerUtils.closeOnFlush(ctx.channel());
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}
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}
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