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1   /*
2    * Wallace IMAP Server
3    * Copyright (C) 2004  Robert Newson
4    *
5    * This program is free software; you can redistribute it and/or
6    * modify it under the terms of the GNU General Public License
7    * as published by the Free Software Foundation; either version 2
8    * of the License, or (at your option) any later version.
9    *
10   * This program is distributed in the hope that it will be useful,
11   * but WITHOUT ANY WARRANTY; without even the implied warranty of
12   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13   * GNU General Public License for more details.
14   *
15   * You should have received a copy of the GNU General Public License
16   * along with this program; if not, write to the Free Software
17   * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
18   */
19  package net.sf.wallace.messages;
20  
21  import javax.mail.NoSuchProviderException;
22  import javax.mail.Session;
23  import javax.mail.Store;
24  import javax.mail.URLName;
25  
26  import net.sf.acegisecurity.Authentication;
27  import net.sf.acegisecurity.AuthenticationException;
28  import net.sf.acegisecurity.AuthenticationManager;
29  import net.sf.acegisecurity.BadCredentialsException;
30  import net.sf.acegisecurity.DisabledException;
31  import net.sf.acegisecurity.LockedException;
32  import net.sf.acegisecurity.providers.UsernamePasswordAuthenticationToken;
33  import net.sf.wallace.Command;
34  import net.sf.wallace.ServerResponse;
35  import net.sf.wallace.WallaceServerConfig;
36  import net.sf.wallace.WallaceSession;
37  import net.sf.wallace.WallaceSessionState;
38  import net.sf.wallace.WallaceUser;
39  import net.sf.wallace.commands.NonAuthCommand;
40  
41  /***
42   * The LOGIN command.
43   * 
44   * @author rnewson
45   */
46  public final class LoginMessage extends AbstractMessage {
47  
48      private String username;
49  
50      private String password;
51  
52      public void setUsername(final String newUsername) {
53          username = newUsername;
54      }
55  
56      public String getUsername() {
57          return username;
58      }
59  
60      public void setPassword(final String newPassword) {
61          password = newPassword;
62      }
63  
64      public String getPassword() {
65          return password;
66      }
67  
68      public Command getCommand() {
69          return new LoginCommand();
70      }
71  
72      private final class LoginCommand extends NonAuthCommand {
73          protected void onExecute(final WallaceSession wallaceSession) throws NoSuchProviderException {
74  
75              final AuthenticationManager authenticationManager = wallaceSession.getServerConfig().getAuthenticationManager();
76  
77              final Authentication authentication = new UsernamePasswordAuthenticationToken(LoginMessage.this.getUsername(),
78                      LoginMessage.this.getPassword());
79  
80              final WallaceServerConfig config = wallaceSession.getServerConfig();
81  
82              final Session session = config.getSession();
83  
84              try {
85                  authenticationManager.authenticate(authentication);
86                  final WallaceUser user = new WallaceUser(LoginMessage.this.getUsername());
87  
88                  final StringBuffer buffer = new StringBuffer(50);
89                  buffer.append("maildir://");
90                  buffer.append(config.getMailboxRootDirectory().getAbsolutePath());
91                  buffer.append("/");
92                  buffer.append(user);
93                  final URLName urlName = new URLName(buffer.toString());
94  
95                  final Store store = session.getStore(urlName);
96  
97                  wallaceSession.setStore(store);
98                  wallaceSession.setUser(user);
99                  wallaceSession.setState(WallaceSessionState.AUTHENTICATED);
100                 wallaceSession.respond(new ServerResponse(LoginMessage.this, "OK LOGIN"));
101             } catch (DisabledException e) {
102                 wallaceSession.respond(new ServerResponse(LoginMessage.this, "NO " + LoginMessage.this.getUsername()
103                         + " account disabled."));
104             } catch (LockedException e) {
105                 wallaceSession.respond(new ServerResponse(LoginMessage.this, "NO " + LoginMessage.this.getUsername()
106                         + " account locked."));
107             } catch (BadCredentialsException e) {
108                 wallaceSession.respond(new ServerResponse(LoginMessage.this, "NO unknown user or incorrect password."));
109             } catch (AuthenticationException e) {
110                 wallaceSession.respond(new ServerResponse(LoginMessage.this, "NO unknown authentication failure."));
111             }
112         }
113     }
114 
115 }