1 /*
2 * Copyright 2007-2008 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.web.spring;
17
18 import javax.servlet.http.HttpServletRequest;
19 import javax.servlet.http.HttpServletResponse;
20
21 import org.apache.log4j.Logger;
22 import org.kuali.rice.ken.service.NotificationAuthorizationService;
23 import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
24
25 /**
26 * Spring HandlerInterceptor implementation that implements security. For now this just
27 * adds a flag to the request indicating whether the authenticated user is a Notification
28 * System administrator.
29 * @author Kuali Rice Team (rice.collab@kuali.org)
30 */
31 public class SecurityInterceptor extends HandlerInterceptorAdapter {
32 private static final Logger LOG = Logger.getLogger(SecurityInterceptor.class);
33
34 /**
35 * Request attribute key under which to register the userIsAdmin flag
36 */
37 private static final String USER_IS_ADMIN_KEY = "userIsAdmin";
38
39 protected NotificationAuthorizationService notificationAuthzService;
40
41 /**
42 * Sets the NotificationAuthorizationService member
43 * @param notificationAuthzService NotificationAuthorizationService used to determine whether user is administrator
44 */
45 public void setNotificationAuthorizationService(NotificationAuthorizationService notificationAuthzService) {
46 this.notificationAuthzService = notificationAuthzService;
47 }
48
49 /**
50 * Decorate the incoming request with an attribute that indicates whether the user is a Notification System administrator
51 * @see org.springframework.web.servlet.handler.HandlerInterceptorAdapter#preHandle(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse, java.lang.Object)
52 */
53 @Override
54 public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
55 String user = request.getRemoteUser();
56 boolean isAdmin = false;
57 if (user != null) {
58 isAdmin = notificationAuthzService.isUserAdministrator(user);
59 }
60 LOG.debug("Setting request attribute '" + USER_IS_ADMIN_KEY + "' to " + isAdmin);
61 request.setAttribute(USER_IS_ADMIN_KEY, Boolean.valueOf(isAdmin));
62 return true;
63 }
64 }