001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 018 package org.apache.commons.net.ftp; 019 020 import java.io.IOException; 021 import java.net.InetAddress; 022 import java.net.ServerSocket; 023 024 import javax.net.ServerSocketFactory; 025 import javax.net.ssl.SSLContext; 026 import javax.net.ssl.SSLServerSocket; 027 028 /** 029 * Server socket factory for FTPS connections. 030 * @since 2.2 031 */ 032 public class FTPSServerSocketFactory extends ServerSocketFactory { 033 034 /** Factory for secure socket factories */ 035 private final SSLContext context; 036 037 public FTPSServerSocketFactory(SSLContext context) { 038 this.context = context; 039 } 040 041 // Override the default superclass method 042 @Override 043 public ServerSocket createServerSocket() throws IOException { 044 return init(this.context.getServerSocketFactory().createServerSocket()); 045 } 046 047 @Override 048 public ServerSocket createServerSocket(int port) throws IOException { 049 return init(this.context.getServerSocketFactory().createServerSocket(port)); 050 } 051 052 @Override 053 public ServerSocket createServerSocket(int port, int backlog) throws IOException { 054 return init(this.context.getServerSocketFactory().createServerSocket(port, backlog)); 055 } 056 057 @Override 058 public ServerSocket createServerSocket(int port, int backlog, InetAddress ifAddress) throws IOException { 059 return init(this.context.getServerSocketFactory().createServerSocket(port, backlog, ifAddress)); 060 } 061 062 /** 063 * Sets the socket so newly accepted connections will use SSL client mode. 064 * 065 * @param socket the SSLServerSocket to initialise 066 * @return the socket 067 * @throws ClassCastException if socket is not an instance of SSLServerSocket 068 */ 069 public ServerSocket init(ServerSocket socket) { 070 ((SSLServerSocket) socket).setUseClientMode(true); 071 return socket; 072 } 073 } 074