1: # The LearningOnline Network
2: # Logout Handler
3: #
4: # $Id: lonlogout.pm,v 1.21 2006/09/05 20:16:49 albertel 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 %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
45: my $lonid=$cookies{'lonID'};
46: my $cookie;
47: if (!$lonid) {
48: return FORBIDDEN;
49: }
50:
51: #check if cookie still valid
52: my $handle=$lonid->value;
53: $handle=~s/\W//g;
54: my $lonidsdir=$r->dir_config('lonIDsDir');
55: if ((!-e "$lonidsdir/$handle.id") || ($handle eq '')) {
56: $r->log_reason("Cookie $handle not valid", $r->filename);
57: return FORBIDDEN;
58: }
59:
60: #we've got a valid user
61: my @profile;
62: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
63: unlink("$lonidsdir/$handle.id");
64: my %temp=('logout' => time);
65: &Apache::lonnet::put('email_status',\%temp);
66: &Apache::lonnet::log($env{'user.domain'},
67: $env{'user.name'},
68: $env{'user.home'},
69: "Logout $ENV{'REMOTE_ADDR'}");
70: &Apache::loncommon::content_type($r,'text/html');
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: my %lt=&Apache::lonlocal::texthash('gb' => 'Goodbye',
91: 'cw' => 'close this window',
92: 'li' => 'log in again',
93: 'pe' => 'Please either',
94: 'or' => 'or');
95: my $login_url = '/adm/'.($env{'request.sso.login'} ? 'roles'
96: : 'login');
97:
98: $relogmessage=(<<ENDRELOG);
99: <h1>$lt{'gb'}!</h1>
100: $lt{'pe'} <a href="javascript:self.close();">$lt{'cw'}</a> $lt{'or'}
101: <a href="$login_url?domain=$env{'user.domain'}">$lt{'li'}</a>.
102: ENDRELOG
103:
104: if ($env{'request.sso.login'}
105: && defined($r->dir_config('lonSSOUserLogoutMessageFile'))) {
106: open(my $fh,$r->dir_config('lonSSOUserLogoutMessageFile'));
107: $relogmessage.= join('',<$fh>);
108: }
109:
110: }
111: my $end_page=&Apache::loncommon::end_page();
112: # --------------------------------------------------------------- Screen Output
113: $r->print(<<ENDDOCUMENT);
114: $start_page
115: $windowinfo
116: $relogmessage
117: $end_page
118: ENDDOCUMENT
119: &Apache::lonnet::flushcourselogs();
120: return OK;
121: }
122:
123: 1;
124: __END__
125:
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