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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *     http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.shiro.web.tags;
20  
21  import org.apache.shiro.subject.Subject;
22  
23  
24  /**
25   * Displays body content if the current user has any of the roles specified.
26   *
27   * @since 0.2
28   */
29  public class HasAnyRolesTag extends RoleTag {
30  
31      //TODO - complete JavaDoc
32  
33      // Delimeter that separates role names in tag attribute
34      private static final String ROLE_NAMES_DELIMETER = ",";
35  
36      public HasAnyRolesTag() {
37      }
38  
39      protected boolean showTagBody(String roleNames) {
40          boolean hasAnyRole = false;
41  
42          Subject subject = getSubject();
43  
44          if (subject != null) {
45  
46              // Iterate through roles and check to see if the user has one of the roles
47              for (String role : roleNames.split(ROLE_NAMES_DELIMETER)) {
48  
49                  if (subject.hasRole(role.trim())) {
50                      hasAnyRole = true;
51                      break;
52                  }
53  
54              }
55  
56          }
57  
58          return hasAnyRole;
59      }
60  
61  }