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Java > Open Source Codes > org > apache > james > imapserver > commands > LoginCommand


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17
18 package org.apache.james.imapserver.commands;
19
20 import org.apache.james.imapserver.AuthenticationException;
21 import org.apache.james.imapserver.ImapRequest;
22 import org.apache.james.imapserver.ImapSession;
23 import org.apache.james.imapserver.ImapSessionState;
24
25 import java.util.StringTokenizer JavaDoc;
26 import java.util.List JavaDoc;
27
28 class LoginCommand extends NonAuthenticatedStateCommand
29 {
30     LoginCommand()
31     {
32         this.commandName = "LOGIN";
33
34         this.getArgs().add( new AstringArgument( "username" ) );
35         this.getArgs().add( new AstringArgument( "password" ) );
36     }
37
38     protected boolean doProcess( ImapRequest request, ImapSession session, List JavaDoc argValues )
39     {
40         String JavaDoc userName = (String JavaDoc) argValues.get(0);
41         String JavaDoc password = (String JavaDoc) argValues.get(1);
42
43         session.setCurrentUser( userName );
44         if ( session.getUsers().test( session.getCurrentUser(), password ) ) {
45             session.getSecurityLogger().info( "Login successful for " + session.getCurrentUser() + " from "
46                                  + session.getRemoteHost() + "(" + session.getRemoteIP() + ")" );
47             // four possibilites handled:
48 // private mail: isLocal, is Remote
49 // other mail (shared, news, etc.) is Local, is Remote
50
51             if ( session.getImapHost().isHomeServer( session.getCurrentUser() ) ) {
52                 session.okResponse( request.getCommand() );
53                 session.setState( ImapSessionState.AUTHENTICATED );
54
55             }
56             else {
57                 String JavaDoc remoteServer = null;
58                 try {
59                     remoteServer
60                             = session.getImapSystem().getHomeServer( session.getCurrentUser() );
61                 }
62                 catch ( AuthenticationException ae ) {
63                     session.setConnectionClosed( session.closeConnection( TAGGED_NO,
64                                                " cannot find your inbox, closing connection",
65                                                "" ) );
66                     return false;
67                 }
68
69                 if ( session.getImapHost().hasLocalAccess( session.getCurrentUser() ) ) {
70                     session.okResponse( "[REFERRAL "
71                                                + remoteServer + "]" + SP
72                                                + "Your home server is remote, other mailboxes available here" );
73                     session.setState( ImapSessionState.AUTHENTICATED );
74
75                 }
76                 else {
77                     session.closeConnection( TAGGED_NO, " [REFERRAL" + SP
78                                                 + remoteServer + "]" + SP
79                                                 + "No mailboxes available here, try remote server", "" );
80                     return false;
81                 }
82             }
83             session.setCurrentNamespace( session.getImapHost().getDefaultNamespace( session.getCurrentUser() ) );
84             session.setCurrentSeperator( session.getImapSystem().getHierarchySeperator( session.getCurrentNamespace() ) );
85             // position at root of default Namespace,
86 // which is not actually a folder
87 session.setCurrentFolder( session.getCurrentNamespace() + session.getCurrentSeperator() + "" );
88             getLogger().debug( "Current folder for user " + session.getCurrentUser() + " from "
89                                + session.getRemoteHost() + "(" + session.getRemoteIP() + ") is "
90                                + session.getCurrentFolder() );
91             return true;
92
93
94         } // failed password test
95
96         // We should add ability to monitor attempts to login
97 session.noResponse( request.getCommand() );
98         session.getSecurityLogger().error( "Failed attempt to use Login command for account "
99                               + session.getCurrentUser() + " from " + session.getRemoteHost() + "(" + session.getRemoteIP()
100                               + ")" );
101         return true;
102     }
103 }
104
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