1 /*
2 jGuard is a security framework based on top of jaas (java authentication and authorization security).
3 it is written for web applications, to resolve simply, access control problems.
4 version $Name$
5 http://sourceforge.net/projects/jguard/
6
7 Copyright (C) 2004 Charles GAY
8
9 This library is free software; you can redistribute it and/or
10 modify it under the terms of the GNU Lesser General Public
11 License as published by the Free Software Foundation; either
12 version 2.1 of the License, or (at your option) any later version.
13
14 This library is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 Lesser General Public License for more details.
18
19 You should have received a copy of the GNU Lesser General Public
20 License along with this library; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22
23
24 jGuard project home page:
25 http://sourceforge.net/projects/jguard/
26
27 */
28 package net.sf.jguard.core.authorization.manager;
29
30 import java.security.PermissionCollection;
31 import java.security.Permissions;
32 import java.security.ProtectionDomain;
33
34
35 /**
36 * PermissionProvider interface is base interface for AuthorizationManager.
37 * This interface is introduced to make coupling of JGuardPolicy to other
38 * classes in the framework as small as possible.
39 *
40 * @author <a href="mailto:zelfdoen@users.sourceforge.net">Theo Niemeijer</a>
41 * @author <a href="mailto:diabolo512@users.sourceforge.net">Charles Gay</a>
42 */
43 public interface PermissionProvider {
44
45 /**
46 * Get permission collection.
47 *
48 * @param principals - set value for principals
49 *
50 * @return permission collection value
51 */
52 public PermissionCollection getPermissions(ProtectionDomain pDomain);
53
54 /**
55 * refresh principals and permissions data.
56 */
57 public void refresh();
58
59 /**
60 * add some permissions always granted by this Policy, like permission used to
61 * <i>logoff</i> in webapp, or permissions used to reached the <i>AccessDenied</i> page.
62 * @param permissions permissions always granted by this Policy
63 */
64 public void addAlwaysGrantedPermissions(Permissions permissions);
65
66 }