/**
 *  Copyright 2005-2015 Red Hat, Inc.
 *
 *  Red Hat licenses this file to you 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 io.jube.images.wildfly;

import java.io.IOException;

import javax.security.auth.callback.Callback;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.callback.NameCallback;
import javax.security.auth.callback.PasswordCallback;
import javax.security.auth.callback.UnsupportedCallbackException;
import javax.security.sasl.RealmCallback;

public class SimpleCallbackHandler implements CallbackHandler {
    private String username;
    private String password;

    public SimpleCallbackHandler(String username, String password) {
        this.username = username;
        this.password = password;
    }

    public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
        for (Callback current : callbacks) {
            if (current instanceof NameCallback) {
                NameCallback ncb = (NameCallback) current;
                ncb.setName(username);
            } else if (current instanceof PasswordCallback) {
                PasswordCallback pcb = (PasswordCallback) current;
                pcb.setPassword(password.toCharArray());
            } else if (current instanceof RealmCallback) {
                RealmCallback rcb = (RealmCallback) current;
                rcb.setText(rcb.getDefaultText());
            } else {
                throw new UnsupportedCallbackException(current);
            }
        }
    }
}