Source code: org/acegisecurity/providers/jaas/JaasPasswordCallbackHandler.java
1 /* Copyright 2004 Acegi Technology Pty Limited
2 *
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 package org.acegisecurity.providers.jaas;
17
18 import org.acegisecurity.Authentication;
19
20 import java.io.IOException;
21
22 import javax.security.auth.callback.Callback;
23 import javax.security.auth.callback.PasswordCallback;
24 import javax.security.auth.callback.UnsupportedCallbackException;
25
26
27 /**
28 * The most basic Callbacks to be handled when using a LoginContext from JAAS,
29 * are the NameCallback and PasswordCallback. The acegi security framework
30 * provides the JaasPasswordCallbackHandler specifically tailored to handling
31 * the PasswordCallback. <br>
32 *
33 * @author Ray Krueger
34 * @version $Id: JaasPasswordCallbackHandler.java,v 1.4 2005/11/17 00:55:52 benalex Exp $
35 *
36 * @see <a
37 * href="http://java.sun.com/j2se/1.4.2/docs/api/javax/security/auth/callback/Callback.html">Callback</a>
38 * @see <a
39 * href="http://java.sun.com/j2se/1.4.2/docs/api/javax/security/auth/callback/PasswordCallback.html">PasswordCallback</a>
40 */
41 public class JaasPasswordCallbackHandler
42 implements JaasAuthenticationCallbackHandler {
43 //~ Methods ================================================================
44
45 /**
46 * If the callback passed to the 'handle' method is an instance of
47 * PasswordCallback, the JaasPasswordCallbackHandler will call,
48 * callback.setPassword(authentication.getCredentials().toString()).
49 *
50 * @param callback
51 * @param auth
52 *
53 * @throws IOException
54 * @throws UnsupportedCallbackException
55 */
56 public void handle(Callback callback, Authentication auth)
57 throws IOException, UnsupportedCallbackException {
58 if (callback instanceof PasswordCallback) {
59 PasswordCallback pc = (PasswordCallback) callback;
60 pc.setPassword(auth.getCredentials().toString().toCharArray());
61 }
62 }
63 }