SimpleCredentialPasswordValidator xref

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1   /* 
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8   *
9   *     http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17  package org.apache.jetspeed.security.spi.impl;
18  
19  import org.apache.jetspeed.security.InvalidPasswordException;
20  import org.apache.jetspeed.security.SecurityException;
21  import org.apache.jetspeed.security.spi.CredentialPasswordValidator;
22  
23  /***
24   * <p>
25   * SimpleCredentialPasswordValidator
26   * </p>
27   * 
28   * @author <a href="mailto:ate@apache.org">Ate Douma</a>
29   * @version $Id: SimpleCredentialPasswordValidator.java 516448 2007-03-09 16:25:47Z ate $
30   */
31  public class SimpleCredentialPasswordValidator implements CredentialPasswordValidator
32  {
33      private int minPasswordLength;
34      private int minNumberOfDigits;
35      
36      /***
37       * @param minPasswordLength
38       * @param minNumberOfDigits
39       */
40      public SimpleCredentialPasswordValidator(int minPasswordLength, int minNumberOfDigits)
41      {
42          this.minPasswordLength = minPasswordLength;
43          this.minNumberOfDigits = minNumberOfDigits;
44      }
45  
46      /***
47       * @see org.apache.jetspeed.security.spi.CredentialPasswordValidator#validate(String)
48       */
49      public void validate(String clearTextPassword) throws SecurityException
50      {
51          int digits = 0;
52          if ( clearTextPassword == null )
53          {
54              clearTextPassword = "";
55          }
56          char[] pwd = clearTextPassword.toCharArray();
57  
58          if ( minPasswordLength > 0 && pwd.length < minPasswordLength )
59          {
60              throw new InvalidPasswordException();
61          }
62  
63          if ( minNumberOfDigits > 0)
64          {
65              for ( int i = 0; i < pwd.length; i++ )
66              {
67                  if (Character.isDigit(pwd[i]))
68                  {
69                      digits++;
70                  }
71              }
72              if (digits < minNumberOfDigits)
73              {
74                  throw new InvalidPasswordException();
75              }
76          }
77      }
78  }