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1   /**
2    * Copyright 2005-2011 The Kuali Foundation
3    *
4    * Licensed under the Educational Community License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    * http://www.opensource.org/licenses/ecl2.php
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package org.kuali.rice.ken.service.impl;
17  
18  import org.kuali.rice.core.framework.persistence.dao.GenericDao;
19  import org.kuali.rice.ken.bo.NotificationChannel;
20  import org.kuali.rice.ken.bo.NotificationProducer;
21  import org.kuali.rice.ken.service.NotificationAuthorizationService;
22  import org.kuali.rice.ken.util.NotificationConstants;
23  import org.kuali.rice.kim.api.KimConstants;
24  import org.kuali.rice.kim.api.group.Group;
25  import org.kuali.rice.kim.api.group.GroupService;
26  import org.kuali.rice.kim.api.identity.Person;
27  import org.kuali.rice.kim.api.services.KimApiServiceLocator;
28  
29  import java.util.List;
30  
31  
32  /**
33   * NotificationAuthorizationService implementation - this is the default out-of-the-box implementation of the service.
34   * @author Kuali Rice Team (rice.collab@kuali.org)
35   */
36  public class NotificationAuthorizationServiceImpl implements NotificationAuthorizationService {
37      private static org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(NotificationAuthorizationServiceImpl.class);
38  
39      private GenericDao businessObjectDao;
40  
41      /**
42       * Constructs a NotificationAuthorizationServiceImpl class instance.
43       * @param businessObjectDao
44       */
45      public NotificationAuthorizationServiceImpl(GenericDao businessObjectDao) {
46          this.businessObjectDao = businessObjectDao;
47      }
48  
49      /**
50       * @see org.kuali.rice.ken.service.NotificationAuthorizationService#isProducerAuthorizedToSendNotificationForChannel(org.kuali.rice.ken.bo.NotificationProducer, org.kuali.rice.ken.bo.NotificationChannel)
51       */
52      public boolean isProducerAuthorizedToSendNotificationForChannel(NotificationProducer producer, NotificationChannel channel) {
53  	List channels = producer.getChannels();
54  
55  	if(channels.contains(channel)) {
56  	    return true;
57  	} else {
58  	    return false;
59  	}
60      }
61  
62      /**
63       * Implements by calling the is user member of service in KEW's workgroup service, looking for a specific membership
64       * in the "NotificationAdmin" workgroup.
65       * @see org.kuali.rice.ken.service.NotificationAuthorizationService#isUserAdministrator(java.lang.String)
66       */
67      public boolean isUserAdministrator(String userId) {
68      	String groupNameId = NotificationConstants.KEW_CONSTANTS.NOTIFICATION_ADMIN_GROUP_NAME;
69  	    Person user = KimApiServiceLocator.getPersonService().getPerson(userId);
70  	    if (user == null) {
71  	        return false;
72  	    }
73  
74          final GroupService groupService = KimApiServiceLocator.getGroupService();
75          Group group = groupService.getGroupByNameAndNamespaceCode(KimConstants.KIM_GROUP_WORKFLOW_NAMESPACE_CODE,
76                  groupNameId);
77  		return group == null ? false : groupService.isMemberOfGroup(user.getPrincipalId(), group.getId());
78      }
79  }