/**
*
* Copyright 2004-2005 The Apache Software Foundation
*
* 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 org.apache.geronimo.security.realm.providers;
import java.util.Arrays;
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;
/**
* @version $Rev: 355877 $ $Date: 2005-12-11 03:48:27 +0100 (Sun, 11 Dec 2005) $
*/
public class PasswordCallbackHandler implements ClearableCallbackHandler {
private final String username;
private final char[] password;
public PasswordCallbackHandler(String username, char[] password) {
this.username = username;
this.password = password;
}
public void handle(Callback[] callbacks) throws UnsupportedCallbackException {
for (int i = 0; i < callbacks.length; i++) {
Callback callback = callbacks[i];
if (callback instanceof NameCallback) {
NameCallback nc = (NameCallback) callback;
nc.setName(username);
} else if (callback instanceof PasswordCallback) {
PasswordCallback pc = (PasswordCallback) callback;
pc.setPassword(password);
} else {
throw new UnsupportedCallbackException(callback);
}
}
}
public void clear() {
Arrays.fill(password, '\0');
}
}