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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.slf4j.Logger;
42  import org.slf4j.LoggerFactory;
43  import org.apache.commons.lang.LocaleUtils;
44  
45  public class UserContextImpl extends AbstractContext implements UserContext {
46      private static final Logger log = LoggerFactory.getLogger(UserContextImpl.class);
47  
48      private static final long serialVersionUID = 222L;
49  
50      private static final String SESSION_USER = UserContextImpl.class.getName() + ".user";
51  
52      private User user;
53  
54      public UserContextImpl() {
55  
56      }
57  
58      public Locale getLocale() {
59          if(this.locale == null){
60              setLocaleFor(getUser());
61          }
62          return locale;
63      }
64  
65      /**
66       * Create the subject on demand.
67       * @see info.magnolia.context.AbstractContext#getUser()
68       */
69      public User getUser() {
70          if (user == null) {
71              user = (User) getAttribute(SESSION_USER, Context.SESSION_SCOPE);
72              if (user == null) {
73                  user = Security.getAnonymousUser();
74              }
75          }
76          return this.user;
77      }
78  
79      public void login(User user) {
80          setLocaleFor(user);
81          setAttribute(SESSION_USER, user, Context.SESSION_SCOPE);
82          this.user = null;
83      }
84  
85      public void logout() {
86          removeAttribute(SESSION_USER, Context.SESSION_SCOPE);
87          user = null;
88          locale = null;
89          login(Security.getAnonymousUser());
90      }
91  
92      protected void setLocaleFor(User user) {
93          // despite this property being called "language", it sometimes contains the country (i.e. fr_CH), so we need to parse it
94          final String userLanguage = user.getLanguage();
95          setLocale(LocaleUtils.toLocale(userLanguage));
96      }
97  
98  }