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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.administration;
18  
19  import java.util.ArrayList;
20  
21  import javax.servlet.jsp.JspException;
22  
23  import org.apache.jetspeed.om.folder.Folder;
24  import org.apache.taglibs.random.RandomStrg;
25  
26  /***
27   * Helper for admininstration
28   * 
29   * @author <a href="mailto:taylor@apache.org">David Sean Taylor</a>
30   * @author <a href="mailto:chris@bluesunrise.com">Chris Schaefer</a>
31   * @version $Id: $
32   */
33  public class AdminUtil
34  {
35      /*** the list of characters from which a password can be generatored. */
36      protected static final char[] PASS_CHARS = {'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
37          'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
38          'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
39          'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
40          '1', '2', '3', '4', '5', '6', '7', '8', '9', '0'};
41          // removed these for aesthetic purposes
42          //'!', '&',  '-', '_', '=',
43          // '*','@', '#', '$', '%', '^',
44          //'+',
45  
46      public String generatePassword()
47      {
48          RandomStrg rs = new RandomStrg();
49          
50          //TODO put in a more secure random number provider
51          //rs.setAlgorithm();   -- ideally call this for super security.  need rnd provider
52          
53          try
54          {
55              rs.generateRandomObject();
56          } catch (JspException e)
57          {
58              // this would only get thrown if we tried a secure random and the provider
59              // was not available.
60              e.printStackTrace();
61          }
62          rs.setLength(new Integer(12));
63          rs.setSingle(PASS_CHARS,PASS_CHARS.length);
64          ArrayList upper = new ArrayList();
65          ArrayList lower = new ArrayList();
66          //upper.add(new Character('A'));
67          //lower.add(new Character('B'));
68          rs.setRanges(upper,lower);
69          String retval = rs.getRandom();
70          
71          return retval;        
72      }
73      
74      protected String concatenatePaths(String base, String path)
75      {
76          String result = "";
77          if (base == null)
78          {
79              if (path == null)
80              {
81                  return result;
82              }
83              return path;
84          }
85          else
86          {
87              if (path == null)
88              {
89                  return base;
90              }
91          }
92          if (base.endsWith(Folder.PATH_SEPARATOR)) 
93          {
94              if (path.startsWith(Folder.PATH_SEPARATOR))
95              {
96                  result = base.concat(path.substring(1));
97                  return result;
98              }
99          
100         }
101         else
102         {
103             if (!path.startsWith(Folder.PATH_SEPARATOR)) 
104             {
105                 result = base.concat(Folder.PATH_SEPARATOR).concat(path);
106                 return result;
107             }
108         }
109         return base.concat(path);
110     }
111     
112 }