1 /**
2 * This file Copyright (c) 2003-2009 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.context;
35
36 import info.magnolia.cms.security.Security;
37 import info.magnolia.cms.security.User;
38
39 import java.util.Locale;
40
41 import org.apache.commons.lang.LocaleUtils;
42
43 /**
44 * User aware context implementation able to release and discard all kept info upon user logout. Also changes the locale from default one to the one prefered by the logged in user.
45 * @author had
46 * @version $Id: $
47 */
48 public class UserContextImpl extends AbstractContext implements UserContext {
49
50 private static final long serialVersionUID = 222L;
51
52 private static final String SESSION_USER = UserContextImpl.class.getName() + ".user";
53
54 private User user;
55
56 public UserContextImpl() {
57
58 }
59
60 public Locale getLocale() {
61 if(this.locale == null){
62 setLocaleFor(getUser());
63 }
64 return locale;
65 }
66
67 /**
68 * Create the subject on demand.
69 * @see info.magnolia.context.AbstractContext#getUser()
70 */
71 public User getUser() {
72 if (user == null) {
73 user = (User) getAttribute(SESSION_USER, Context.SESSION_SCOPE);
74 if (user == null) {
75 user = Security.getAnonymousUser();
76 }
77 }
78 return this.user;
79 }
80
81 public void login(User user) {
82 setLocaleFor(user);
83 setAttribute(SESSION_USER, user, Context.SESSION_SCOPE);
84 this.user = null;
85 }
86
87 public void logout() {
88 removeAttribute(SESSION_USER, Context.SESSION_SCOPE);
89 user = null;
90 locale = null;
91 login(Security.getAnonymousUser());
92 }
93
94 protected void setLocaleFor(User user) {
95 // despite this property being called "language", it sometimes contains the country (i.e. fr_CH), so we need to parse it
96 final String userLanguage = user.getLanguage();
97 setLocale(LocaleUtils.toLocale(userLanguage));
98 }
99
100 }