Coverage Report - org.acegisecurity.providers.encoding.BasePasswordEncoder
 
Classes in this File Line Coverage Branch Coverage Complexity
BasePasswordEncoder
100% 
100% 
5.5
 
 1  
 /* Copyright 2004, 2005, 2006 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.encoding;
 17  
 
 18  
 /**
 19  
  * <p>Convenience base for all password encoders.</p>
 20  
  *
 21  
  * @author Ben Alex
 22  
  * @version $Id: BasePasswordEncoder.java 1496 2006-05-23 13:38:33Z benalex $
 23  
  */
 24  55
 public abstract class BasePasswordEncoder implements PasswordEncoder {
 25  
     //~ Methods ========================================================================================================
 26  
 
 27  
     /**
 28  
      * Used by subclasses to extract the password and salt from a merged <code>String</code> created using
 29  
      * {@link #mergePasswordAndSalt(String,Object,boolean)}.<p>The first element in the returned array is the
 30  
      * password. The second element is the salt. The salt array element will always be present, even if no salt was
 31  
      * found in the <code>mergedPasswordSalt</code> argument.</p>
 32  
      *
 33  
      * @param mergedPasswordSalt as generated by <code>mergePasswordAndSalt</code>
 34  
      *
 35  
      * @return an array, in which the first element is the password and the second the salt
 36  
      *
 37  
      * @throws IllegalArgumentException if mergedPasswordSalt is null or empty.
 38  
      */
 39  
     protected String[] demergePasswordAndSalt(String mergedPasswordSalt) {
 40  8
         if ((mergedPasswordSalt == null) || "".equals(mergedPasswordSalt)) {
 41  2
             throw new IllegalArgumentException("Cannot pass a null or empty String");
 42  
         }
 43  
 
 44  6
         String password = mergedPasswordSalt;
 45  6
         String salt = "";
 46  
 
 47  6
         int saltBegins = mergedPasswordSalt.lastIndexOf("{");
 48  
 
 49  6
         if ((saltBegins != -1) && ((saltBegins + 1) < mergedPasswordSalt.length())) {
 50  4
             salt = mergedPasswordSalt.substring(saltBegins + 1, mergedPasswordSalt.length() - 1);
 51  4
             password = mergedPasswordSalt.substring(0, saltBegins);
 52  
         }
 53  
 
 54  6
         return new String[] {password, salt};
 55  
     }
 56  
 
 57  
     /**
 58  
      * Used by subclasses to generate a merged password and salt <code>String</code>.<P>The generated password
 59  
      * will be in the form of <code>password{salt}</code>.</p>
 60  
      *  <p>A <code>null</code> can be passed to either method, and will be handled correctly. If the
 61  
      * <code>salt</code> is <code>null</code> or empty, the resulting generated password will simply be the passed
 62  
      * <code>password</code>. The <code>toString</code> method of the <code>salt</code> will be used to represent the
 63  
      * salt.</p>
 64  
      *
 65  
      * @param password the password to be used (can be <code>null</code>)
 66  
      * @param salt the salt to be used (can be <code>null</code>)
 67  
      * @param strict ensures salt doesn't contain the delimiters
 68  
      *
 69  
      * @return a merged password and salt <code>String</code>
 70  
      *
 71  
      * @throws IllegalArgumentException if the salt contains '{' or '}' characters.
 72  
      */
 73  
     protected String mergePasswordAndSalt(String password, Object salt, boolean strict) {
 74  50
         if (password == null) {
 75  1
             password = "";
 76  
         }
 77  
 
 78  50
         if (strict && (salt != null)) {
 79  10
             if ((salt.toString().lastIndexOf("{") != -1) || (salt.toString().lastIndexOf("}") != -1)) {
 80  2
                 throw new IllegalArgumentException("Cannot use { or } in salt.toString()");
 81  
             }
 82  
         }
 83  
 
 84  48
         if ((salt == null) || "".equals(salt)) {
 85  22
             return password;
 86  
         } else {
 87  26
             return password + "{" + salt.toString() + "}";
 88  
         }
 89  
     }
 90  
 }