PassphraseUserInfo.java

/*
 * Copyright 2011 Jesper Terkelsen.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 * 
 */
package dk.deck.remoteconsole.userinfo;

import java.io.IOException;
import dk.deck.remoteconsole.input.PasswordField;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * A user info that returns true on all questions, 
 * but will prompt for a passphrase, if the private key is encrypted.
 * 
 * @author Jesper Terkelsen
 */
public class PassphraseUserInfo extends LoggingUserInfo {
    private static Log log = LogFactory.getLog(PassphraseUserInfo.class);

    @Override
    public String getPassphrase() {
        try {
            char[] passphrase = PasswordField.getPassword(System.in, System.out, "> ");
            return new String(passphrase);
        } catch (IOException ex) {
            log.warn(ex.getMessage(), ex);
            return "";
        }
    }

    @Override
    public boolean promptPassphrase(String message) {
        log.info("PassPhrase: " + message);        
        return true;
    }
}