| Clover coverage report - Acegi Security System for Spring - 1.0.0-RC1 |
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| Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
| BasePasswordEncoder.java | 100% | 100% | 100% | 100% |
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| 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.encoding; | |
| 17 | ||
| 18 | /** | |
| 19 | * <p> | |
| 20 | * Convenience base for all password encoders. | |
| 21 | * </p> | |
| 22 | * | |
| 23 | * @author Ben Alex | |
| 24 | * @version $Id: BasePasswordEncoder.java,v 1.2 2005/11/17 00:55:49 benalex Exp $ | |
| 25 | */ | |
| 26 | public abstract class BasePasswordEncoder implements PasswordEncoder { | |
| 27 | //~ Methods ================================================================ | |
| 28 | ||
| 29 | /** | |
| 30 | * Used by subclasses to extract the password and salt from a merged | |
| 31 | * <code>String</code> created using {@link | |
| 32 | * #mergePasswordAndSalt(String,Object,boolean)}. | |
| 33 | * | |
| 34 | * <P> | |
| 35 | * The first element in the returned array is the password. The second | |
| 36 | * element is the salt. The salt array element will always be present, | |
| 37 | * even if no salt was found in the <code>mergedPasswordSalt</code> | |
| 38 | * argument. | |
| 39 | * </p> | |
| 40 | * | |
| 41 | * @param mergedPasswordSalt as generated by | |
| 42 | * <code>mergePasswordAndSalt</code> | |
| 43 | * | |
| 44 | * @return an array, in which the first element is the password and the | |
| 45 | * second the salt | |
| 46 | * | |
| 47 | * @throws IllegalArgumentException DOCUMENT ME! | |
| 48 | */ | |
| 49 | 8 | protected String[] demergePasswordAndSalt(String mergedPasswordSalt) { |
| 50 | 8 | if ((mergedPasswordSalt == null) || "".equals(mergedPasswordSalt)) { |
| 51 | 2 | throw new IllegalArgumentException( |
| 52 | "Cannot pass a null or empty String"); | |
| 53 | } | |
| 54 | ||
| 55 | 6 | String password = mergedPasswordSalt; |
| 56 | 6 | String salt = ""; |
| 57 | ||
| 58 | 6 | int saltBegins = mergedPasswordSalt.lastIndexOf("{"); |
| 59 | ||
| 60 | 6 | if ((saltBegins != -1) |
| 61 | && ((saltBegins + 1) < mergedPasswordSalt.length())) { | |
| 62 | 4 | salt = mergedPasswordSalt.substring(saltBegins + 1, |
| 63 | mergedPasswordSalt.length() - 1); | |
| 64 | 4 | password = mergedPasswordSalt.substring(0, saltBegins); |
| 65 | } | |
| 66 | ||
| 67 | 6 | return new String[] {password, salt}; |
| 68 | } | |
| 69 | ||
| 70 | /** | |
| 71 | * Used by subclasses to generate a merged password and salt | |
| 72 | * <code>String</code>. | |
| 73 | * | |
| 74 | * <P> | |
| 75 | * The generated password will be in the form of | |
| 76 | * <code>password{salt}</code>. | |
| 77 | * </p> | |
| 78 | * | |
| 79 | * <P> | |
| 80 | * A <code>null</code> can be passed to either method, and will be handled | |
| 81 | * correctly. If the <code>salt</code> is <code>null</code> or empty, the | |
| 82 | * resulting generated password will simply be the passed | |
| 83 | * <code>password</code>. The <code>toString</code> method of the | |
| 84 | * <code>salt</code> will be used to represent the salt. | |
| 85 | * </p> | |
| 86 | * | |
| 87 | * @param password the password to be used (can be <code>null</code>) | |
| 88 | * @param salt the salt to be used (can be <code>null</code>) | |
| 89 | * @param strict ensures salt doesn't contain the delimiters | |
| 90 | * | |
| 91 | * @return a merged password and salt <code>String</code> | |
| 92 | * | |
| 93 | * @throws IllegalArgumentException DOCUMENT ME! | |
| 94 | */ | |
| 95 | 47 | protected String mergePasswordAndSalt(String password, Object salt, |
| 96 | boolean strict) { | |
| 97 | 47 | if (password == null) { |
| 98 | 1 | password = ""; |
| 99 | } | |
| 100 | ||
| 101 | 47 | if (strict && (salt != null)) { |
| 102 | 10 | if ((salt.toString().lastIndexOf("{") != -1) |
| 103 | || (salt.toString().lastIndexOf("}") != -1)) { | |
| 104 | 2 | throw new IllegalArgumentException( |
| 105 | "Cannot use { or } in salt.toString()"); | |
| 106 | } | |
| 107 | } | |
| 108 | ||
| 109 | 45 | if ((salt == null) || "".equals(salt)) { |
| 110 | 20 | return password; |
| 111 | } else { | |
| 112 | 25 | return password + "{" + salt.toString() + "}"; |
| 113 | } | |
| 114 | } | |
| 115 | } |
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