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1   /*
2    * Copyright 2012 The Netty Project
3    *
4    * The Netty Project licenses this file to you under the Apache License,
5    * version 2.0 (the "License"); you may not use this file except in compliance
6    * with the License. You may obtain a copy of the License at:
7    *
8    *   http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13   * License for the specific language governing permissions and limitations
14   * under the License.
15   */
16  package org.jboss.netty.example.telnet;
17  
18  import org.jboss.netty.bootstrap.ServerBootstrap;
19  import org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory;
20  import org.jboss.netty.handler.ssl.SslContext;
21  import org.jboss.netty.handler.ssl.util.SelfSignedCertificate;
22  
23  import java.net.InetSocketAddress;
24  import java.util.concurrent.Executors;
25  
26  /**
27   * Simplistic telnet server.
28   */
29  public final class TelnetServer {
30  
31      static final boolean SSL = System.getProperty("ssl") != null;
32      static final int PORT = Integer.parseInt(System.getProperty("port", SSL? "8992" : "8023"));
33  
34      public static void main(String[] args) throws Exception {
35          // Configure SSL.
36          final SslContext sslCtx;
37          if (SSL) {
38              SelfSignedCertificate ssc = new SelfSignedCertificate();
39              sslCtx = SslContext.newServerContext(ssc.certificate(), ssc.privateKey());
40          } else {
41              sslCtx = null;
42          }
43  
44          // Configure the server.
45          ServerBootstrap bootstrap = new ServerBootstrap(
46                  new NioServerSocketChannelFactory(
47                          Executors.newCachedThreadPool(),
48                          Executors.newCachedThreadPool()));
49  
50          // Configure the pipeline factory.
51          bootstrap.setPipelineFactory(new TelnetServerPipelineFactory(sslCtx));
52  
53          // Bind and start to accept incoming connections.
54          bootstrap.bind(new InetSocketAddress(PORT));
55      }
56  }