Source code: org/acegisecurity/providers/dao/salt/SystemWideSaltSource.java
1 /* Copyright 2004, 2005 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.dao.salt;
17
18 import org.acegisecurity.providers.dao.SaltSource;
19 import org.acegisecurity.userdetails.UserDetails;
20
21 import org.springframework.beans.factory.InitializingBean;
22
23
24 /**
25 * Uses a static system-wide <code>String</code> as the salt.
26 *
27 * <P>
28 * Does not supply a different salt for each {@link User}. This means users
29 * sharing the same password will still have the same digested password. Of
30 * benefit is the digested passwords will at least be more protected than if
31 * stored without any salt.
32 * </p>
33 *
34 * @author Ben Alex
35 * @version $Id: SystemWideSaltSource.java,v 1.6 2005/11/29 13:10:12 benalex Exp $
36 */
37 public class SystemWideSaltSource implements SaltSource, InitializingBean {
38 //~ Instance fields ========================================================
39
40 private String systemWideSalt;
41
42 //~ Methods ================================================================
43
44 public Object getSalt(UserDetails user) {
45 return this.systemWideSalt;
46 }
47
48 public void setSystemWideSalt(String systemWideSalt) {
49 this.systemWideSalt = systemWideSalt;
50 }
51
52 public String getSystemWideSalt() {
53 return this.systemWideSalt;
54 }
55
56 public void afterPropertiesSet() throws Exception {
57 if ((this.systemWideSalt == null) || "".equals(this.systemWideSalt)) {
58 throw new IllegalArgumentException("A systemWideSalt must be set");
59 }
60 }
61 }