1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 package org.apache.commons.net.ftp;
19
20 import java.io.IOException;
21 import java.net.InetAddress;
22 import java.net.ServerSocket;
23
24 import javax.net.ServerSocketFactory;
25 import javax.net.ssl.SSLContext;
26 import javax.net.ssl.SSLServerSocket;
27
28 /**
29 * Server socket factory for FTPS connections.
30 * @since 2.2
31 */
32 public class FTPSServerSocketFactory extends ServerSocketFactory {
33
34 /** Factory for secure socket factories */
35 private final SSLContext context;
36
37 public FTPSServerSocketFactory(SSLContext context) {
38 this.context = context;
39 }
40
41 // Override the default superclass method
42 @Override
43 public ServerSocket createServerSocket() throws IOException {
44 return init(this.context.getServerSocketFactory().createServerSocket());
45 }
46
47 @Override
48 public ServerSocket createServerSocket(int port) throws IOException {
49 return init(this.context.getServerSocketFactory().createServerSocket(port));
50 }
51
52 @Override
53 public ServerSocket createServerSocket(int port, int backlog) throws IOException {
54 return init(this.context.getServerSocketFactory().createServerSocket(port, backlog));
55 }
56
57 @Override
58 public ServerSocket createServerSocket(int port, int backlog, InetAddress ifAddress) throws IOException {
59 return init(this.context.getServerSocketFactory().createServerSocket(port, backlog, ifAddress));
60 }
61
62 /**
63 * Sets the socket so newly accepted connections will use SSL client mode.
64 *
65 * @param socket the SSLServerSocket to initialise
66 * @return the socket
67 * @throws ClassCastException if socket is not an instance of SSLServerSocket
68 */
69 public ServerSocket init(ServerSocket socket) {
70 ((SSLServerSocket) socket).setUseClientMode(true);
71 return socket;
72 }
73 }
74