1 /**
2 * This file Copyright (c) 2003-2010 Magnolia International
3 * Ltd. (http://www.magnolia-cms.com). All rights reserved.
4 *
5 *
6 * This file is dual-licensed under both the Magnolia
7 * Network Agreement and the GNU General Public License.
8 * You may elect to use one or the other of these licenses.
9 *
10 * This file is distributed in the hope that it will be
11 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12 * implied warranty of MERCHANTABILITY or FITNESS FOR A
13 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14 * Redistribution, except as permitted by whichever of the GPL
15 * or MNA you select, is prohibited.
16 *
17 * 1. For the GPL license (GPL), you can redistribute and/or
18 * modify this file under the terms of the GNU General
19 * Public License, Version 3, as published by the Free Software
20 * Foundation. You should have received a copy of the GNU
21 * General Public License, Version 3 along with this program;
22 * if not, write to the Free Software Foundation, Inc., 51
23 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24 *
25 * 2. For the Magnolia Network Agreement (MNA), this file
26 * and the accompanying materials are made available under the
27 * terms of the MNA which accompanies this distribution, and
28 * is available at http://www.magnolia-cms.com/mna.html
29 *
30 * Any modifications to this file must keep this entire header
31 * intact.
32 *
33 */
34 package info.magnolia.cms.security;
35
36 import java.io.Serializable;
37 import java.util.List;
38
39 import org.apache.commons.lang.StringUtils;
40
41
42 /**
43 * Default implementation for {@link AccessManager}.
44 * @version $Id: AccessManagerImpl.java 36890 2010-09-02 11:38:12Z pbaerfuss $
45 */
46 public class AccessManagerImpl implements AccessManager, Serializable {
47
48 private static final long serialVersionUID = 222L;
49
50 private List<Permission> userPermissions;
51
52 public boolean isGranted(String path, long permissions) {
53 if (StringUtils.isEmpty(path)) {
54 path = "/"; //$NON-NLS-1$
55 }
56
57 long currentPermission = getPermissions(path);
58 boolean granted = (currentPermission & permissions) == permissions;
59
60 return granted;
61 }
62
63 public void setPermissionList(List<Permission> permissions) {
64 this.userPermissions = permissions;
65 }
66
67 public List<Permission> getPermissionList() {
68 return this.userPermissions;
69 }
70
71 public long getPermissions(String path) {
72 if (userPermissions == null) {
73 return Permission.NONE;
74 }
75 long permission = 0;
76 int patternLength = 0;
77 for (Permission p : userPermissions) {
78 if (p.match(path)) {
79 int l = p.getPattern().getLength();
80 if (patternLength == l && (permission < p.getPermissions())) {
81 permission = p.getPermissions();
82 } else if (patternLength < l) {
83 patternLength = l;
84 permission = p.getPermissions();
85 }
86 }
87 }
88 return permission;
89 }
90 }