1: # The LearningOnline Network
2: # Logout Handler
3: #
4: # $Id: lonlogout.pm,v 1.30 2008/04/02 12:29:38 bisitz Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28:
29: package Apache::lonlogout;
30:
31: use strict;
32: use Apache::Constants qw(:common);
33: use Apache::File;
34: use Apache::lonnet;
35: use Apache::lonmenu;
36: use CGI::Cookie();
37: use Apache::lonlocal;
38:
39: sub handler {
40: my $r = shift;
41:
42: #Check for cookie
43: my $requrl=$r->uri;
44: my $handle = &Apache::lonnet::check_for_valid_session($r);
45: #check if cookie still valid
46: if ($handle eq '') {
47: $r->log_reason("Cookie $handle not valid", $r->filename);
48: return FORBIDDEN;
49: }
50:
51: #we've got a valid user
52: my @profile;
53: my $lonidsdir=$r->dir_config('lonIDsDir');
54: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
55: unlink("$lonidsdir/$handle.id");
56: my %temp=('logout' => time);
57: &Apache::lonnet::put('email_status',\%temp);
58: &Apache::lonnet::log($env{'user.domain'},
59: $env{'user.name'},
60: $env{'user.home'},
61: "Logout $ENV{'REMOTE_ADDR'}");
62:
63: &Apache::loncommon::content_type($r,'text/html');
64:
65: #expire the cookie
66: my $c = new CGI::Cookie(-name => 'lonID',
67: -value => '',
68: -expires => '-10y',);
69: $r->header_out('Set-cookie' => $c);
70:
71: $r->send_http_header;
72: return OK if $r->header_only;
73: # -------------------------------------------------------- Menu script and info
74:
75: my $windowinfo=&Apache::lonmenu::close();
76: $windowinfo.=&Apache::lonnavmaps::close();
77: # ---------------------------------------------------------------- Get handover
78: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['handover']);
79: my $switch='';
80: my $start_page='';
81: my $relogmessage='';
82: if ($env{'form.handover'}) {
83: $switch='<meta HTTP-EQUIV="Refresh" CONTENT="0.5; url='.
84: $env{'form.handover'}.'">';
85: $start_page=&Apache::loncommon::start_page('Switching Server ...',
86: $switch);
87: } else {
88: $start_page=&Apache::loncommon::start_page('Logged Out',undef,
89: {'no_inline_link' => 1,});
90:
91: $relogmessage.='<h1>'.&mt('Goodbye').'</h1>';
92:
93: if (!$env{'request.sso.norelogin'}) {
94: my $relogin_server;
95: if ($env{'request.sso.reloginserver'}) {
96: $relogin_server = $env{'request.sso.reloginserver'};
97: }
98: my $login_url = $relogin_server.'/adm/'.
99: ($env{'request.sso.login'} ? 'roles': 'login');
100:
101: $relogmessage.=&mt('Please either [_1]close this window[_2] or [_3]log in again[_4].'
102: ,'<a href="javascript:self.close();">','</a>'
103: ,'<a href="'.$login_url.'?domain='.$env{'user.domain'}.'">','</a>');
104: }
105: my $domain = $env{'user.domain'};
106: if ($env{'request.sso.login'}
107: && defined($r->dir_config("lonSSOUserLogoutMessageFile_$domain"))) {
108: open(my $fh,$r->dir_config("lonSSOUserLogoutMessageFile_$domain"));
109: $relogmessage.= join('',<$fh>);
110: }
111: if ($env{'request.sso.login'}
112: && defined($r->dir_config('lonSSOUserLogoutMessageFile'))) {
113: open(my $fh,$r->dir_config('lonSSOUserLogoutMessageFile'));
114: $relogmessage.= join('',<$fh>);
115: }
116:
117: }
118: my $end_page=&Apache::loncommon::end_page();
119: # --------------------------------------------------------------- Screen Output
120: $r->print(<<ENDDOCUMENT);
121: $start_page
122: $windowinfo
123: $relogmessage
124: $end_page
125: ENDDOCUMENT
126: $r->register_cleanup(\&flush_course_logs);
127: return OK;
128: }
129:
130: sub flush_course_logs {
131: &Apache::lonnet::flushcourselogs();
132: return OK;
133: }
134:
135: 1;
136: __END__
137:
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