001    /**
002     *
003     * Copyright 2003-2004 The Apache Software Foundation
004     *
005     *  Licensed under the Apache License, Version 2.0 (the "License");
006     *  you may not use this file except in compliance with the License.
007     *  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 javax.mail;
019    
020    import java.net.InetAddress;
021    
022    /**
023     * @version $Rev: 126350 $ $Date: 2005-01-24 22:35:47 -0800 (Mon, 24 Jan 2005) $
024     */
025    public abstract class Authenticator {
026        private InetAddress host;
027        private int port;
028        private String prompt;
029        private String protocol;
030        private String username;
031    
032        synchronized PasswordAuthentication authenticate(InetAddress host, int port, String protocol, String prompt, String username) {
033            this.host = host;
034            this.port = port;
035            this.protocol = protocol;
036            this.prompt = prompt;
037            this.username = username;
038            return getPasswordAuthentication();
039        }
040    
041        protected final String getDefaultUserName() {
042            return username;
043        }
044    
045        protected PasswordAuthentication getPasswordAuthentication() {
046            return null;
047        }
048    
049        protected final int getRequestingPort() {
050            return port;
051        }
052    
053        protected final String getRequestingPrompt() {
054            return prompt;
055        }
056    
057        protected final String getRequestingProtocol() {
058            return protocol;
059        }
060    
061        protected final InetAddress getRequestingSite() {
062            return host;
063        }
064    }