| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||||
| RoleVoter |
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| 2.4;2.4 |
| 1 | /* Copyright 2004, 2005, 2006 Acegi Technology Pty Limited |
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| 2 | * |
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| 3 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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| 4 | * you may not use this file except in compliance with the License. |
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| 5 | * You may obtain a copy of the License at |
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| 6 | * |
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| 7 | * http://www.apache.org/licenses/LICENSE-2.0 |
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| 8 | * |
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| 9 | * Unless required by applicable law or agreed to in writing, software |
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| 10 | * distributed under the License is distributed on an "AS IS" BASIS, |
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| 11 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 12 | * See the License for the specific language governing permissions and |
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| 13 | * limitations under the License. |
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| 14 | */ |
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| 15 | ||
| 16 | package org.acegisecurity.vote; |
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| 17 | ||
| 18 | import java.util.Iterator; |
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| 19 | ||
| 20 | import org.acegisecurity.Authentication; |
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| 21 | import org.acegisecurity.ConfigAttribute; |
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| 22 | import org.acegisecurity.ConfigAttributeDefinition; |
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| 23 | ||
| 24 | /** |
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| 25 | * <p> |
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| 26 | * Votes if any {@link ConfigAttribute#getAttribute()} starts with a prefix |
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| 27 | * indicating that it is a role. The default prefix string is <Code>ROLE_</code>, |
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| 28 | * but this may be overriden to any value. It may also be set to empty, which |
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| 29 | * means that essentially any attribute will be voted on. As described further |
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| 30 | * below, the effect of an empty prefix may not be quite desireable. |
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| 31 | * </p> |
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| 32 | * <p> |
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| 33 | * Abstains from voting if no configuration attribute commences with the role |
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| 34 | * prefix. Votes to grant access if there is an exact matching |
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| 35 | * {@link org.acegisecurity.GrantedAuthority} to a <code>ConfigAttribute</code> |
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| 36 | * starting with the role prefix. Votes to deny access if there is no exact |
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| 37 | * matching <code>GrantedAuthority</code> to a <code>ConfigAttribute</code> |
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| 38 | * starting with the role prefix. |
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| 39 | * </p> |
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| 40 | * <p> |
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| 41 | * An empty role prefix means that the voter will vote for every |
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| 42 | * ConfigAttribute. When there are different categories of ConfigAttributes |
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| 43 | * used, this will not be optimal since the voter will be voting for attributes |
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| 44 | * which do not represent roles. However, this option may be of some use when |
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| 45 | * using preexisting role names without a prefix, and no ability exists to |
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| 46 | * prefix them with a role prefix on reading them in, such as provided for |
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| 47 | * example in {@link org.acegisecurity.userdetails.jdbc.JdbcDaoImpl}. |
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| 48 | * </p> |
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| 49 | * <p> |
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| 50 | * All comparisons and prefixes are case sensitive. |
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| 51 | * </p> |
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| 52 | * |
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| 53 | * @author Ben Alex |
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| 54 | * @author colin sampaleanu |
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| 55 | * @version $Id: RoleVoter.java 1948 2007-08-25 00:15:30Z benalex $ |
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| 56 | */ |
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| 57 | 21 | public class RoleVoter implements AccessDecisionVoter { |
| 58 | // ~ Instance fields |
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| 59 | // ================================================================================================ |
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| 60 | ||
| 61 | 21 | private String rolePrefix = "ROLE_"; |
| 62 | ||
| 63 | // ~ Methods |
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| 64 | // ======================================================================================================== |
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| 65 | ||
| 66 | public String getRolePrefix() { |
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| 67 | 67 | return rolePrefix; |
| 68 | } |
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| 69 | ||
| 70 | /** |
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| 71 | * Allows the default role prefix of <code>ROLE_</code> to be overriden. |
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| 72 | * May be set to an empty value, although this is usually not desireable. |
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| 73 | * |
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| 74 | * @param rolePrefix the new prefix |
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| 75 | */ |
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| 76 | public void setRolePrefix(String rolePrefix) { |
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| 77 | 1 | this.rolePrefix = rolePrefix; |
| 78 | 1 | } |
| 79 | ||
| 80 | public boolean supports(ConfigAttribute attribute) { |
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| 81 | 67 | if ((attribute.getAttribute() != null) && attribute.getAttribute().startsWith(getRolePrefix())) { |
| 82 | 40 | return true; |
| 83 | } |
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| 84 | else { |
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| 85 | 27 | return false; |
| 86 | } |
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| 87 | } |
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| 88 | ||
| 89 | /** |
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| 90 | * This implementation supports any type of class, because it does not query |
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| 91 | * the presented secure object. |
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| 92 | * |
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| 93 | * @param clazz the secure object |
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| 94 | * |
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| 95 | * @return always <code>true</code> |
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| 96 | */ |
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| 97 | public boolean supports(Class clazz) { |
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| 98 | 1 | return true; |
| 99 | } |
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| 100 | ||
| 101 | public int vote(Authentication authentication, Object object, ConfigAttributeDefinition config) { |
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| 102 | 67 | int result = ACCESS_ABSTAIN; |
| 103 | 67 | Iterator iter = config.getConfigAttributes(); |
| 104 | ||
| 105 | 97 | while (iter.hasNext()) { |
| 106 | 67 | ConfigAttribute attribute = (ConfigAttribute) iter.next(); |
| 107 | ||
| 108 | 67 | if (this.supports(attribute)) { |
| 109 | 40 | result = ACCESS_DENIED; |
| 110 | ||
| 111 | // Attempt to find a matching granted authority |
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| 112 | 51 | for (int i = 0; i < authentication.getAuthorities().length; i++) { |
| 113 | 48 | if (attribute.getAttribute().equals(authentication.getAuthorities()[i].getAuthority())) { |
| 114 | 37 | return ACCESS_GRANTED; |
| 115 | } |
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| 116 | } |
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| 117 | } |
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| 118 | 30 | } |
| 119 | ||
| 120 | 30 | return result; |
| 121 | } |
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| 122 | } |