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 042 public ServerSocket createServerSocket(int port) throws IOException { 043 return init(this.context.getServerSocketFactory().createServerSocket(port)); 044 } 045 046 @Override 047 public ServerSocket createServerSocket(int port, int backlog) throws IOException { 048 return init(this.context.getServerSocketFactory().createServerSocket(port, backlog)); 049 } 050 051 @Override 052 public ServerSocket createServerSocket(int port, int backlog, InetAddress ifAddress) throws IOException { 053 return init(this.context.getServerSocketFactory().createServerSocket(port, backlog, ifAddress)); 054 } 055 056 /** 057 * Sets the socket so newly accepted connections will use SSL client mode. 058 * 059 * @param socket the SSLServerSocket to initialise 060 * @return the socket 061 * @throws ClassCastException if socket is not an instance of SSLServerSocket 062 */ 063 public ServerSocket init(ServerSocket socket) { 064 ((SSLServerSocket) socket).setUseClientMode(true); 065 return socket; 066 } 067 } 068