1: # The LearningOnline Network
2: # Logout Handler
3: #
4: # $Id: lonlogout.pm,v 1.11 2003/09/17 23:50:18 www 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: # (Cookie Based Access Handler
29: # 5/21/99,5/22,5/29,5/31,6/15,16/11,22/11,
30: # 01/06,01/13 Gerd Kortemeyer)
31: # 05/31,11/29,12/29 Gerd Kortemeyer
32:
33: package Apache::lonlogout;
34:
35: use strict;
36: use Apache::Constants qw(:common);
37: use Apache::File;
38: use Apache::lonnet;
39: use Apache::lonmenu;
40: use CGI::Cookie();
41: use Apache::lonlocal;
42:
43: sub handler {
44: my $r = shift;
45:
46: my $requrl=$r->uri;
47: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
48: my $lonid=$cookies{'lonID'};
49: my $cookie;
50: if ($lonid) {
51: my $handle=$lonid->value;
52: $handle=~s/\W//g;
53: my $lonidsdir=$r->dir_config('lonIDsDir');
54: if ((-e "$lonidsdir/$handle.id") && ($handle ne '')) {
55: my @profile;
56: my %sessionhash;
57: {
58: my $idf=Apache::File->new("$lonidsdir/$handle.id");
59: @profile=<$idf>;
60: }
61: my $envi;
62: for ($envi=0;$envi<=$#profile;$envi++) {
63: chomp($profile[$envi]);
64: my ($envname,$envvalue)=split(/=/,$profile[$envi]);
65: $sessionhash{$envname}=$envvalue;
66: }
67: unlink("$lonidsdir/$handle.id");
68: my %temp=('logout' => time);
69: &Apache::lonnet::put('email_status',\%temp);
70: &Apache::lonnet::log($sessionhash{'user.domain'},
71: $sessionhash{'user.name'},
72: $sessionhash{'user.home'},
73: "Logout $ENV{'REMOTE_ADDR'}");
74: $r->content_type('text/html');
75: $r->send_http_header;
76: return OK if $r->header_only;
77: # -------------------------------------------------------- Menu script and info
78:
79: my $windowinfo=&Apache::lonmenu::close();
80: # ---------------------------------------------------------------- Get handover
81: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['handover']);
82: my $switch='';
83: my $bodytag='';
84: my $relogmessage='';
85: if ($ENV{'form.handover'}) {
86: $switch='<meta HTTP-EQUIV="Refresh" CONTENT="0.5; url='.
87: $ENV{'form.handover'}.'">';
88: $bodytag=&Apache::loncommon::bodytag('Switching Server ...');
89: } else {
90: $bodytag=&Apache::loncommon::bodytag('Logged Out');
91: my %lt=&Apache::lonlocal::texthash('gb' => 'Goodbye',
92: 'cw' => 'close this window',
93: 'li' => 'log in again',
94: 'pe' => 'Please either',
95: 'or' => 'or');
96: $relogmessage=(<<ENDRELOG);
97: <h1>$lt{'gb'}!</h1>
98: $lt{'pe'} <a href="javascript:self.close();">$lt{'cw'}</a> $lt{'or'}
99: <a href="/adm/login">$lt{'li'}</a>.
100: ENDRELOG
101: }
102: # --------------------------------------------------------------- Screen Output
103: $r->print(<<ENDDOCUMENT);
104: <html>
105: <head><title>The LearningOnline Network with CAPA Logout</title>
106: $switch
107: </head>
108: $bodytag
109: $windowinfo
110: $relogmessage
111: </body>
112: </html>
113: ENDDOCUMENT
114: &Apache::lonnet::flushcourselogs();
115: return OK;
116: } else {
117: $r->log_reason("Cookie $handle not valid", $r->filename);
118: }
119: }
120: return FORBIDDEN;
121: }
122:
123: 1;
124: __END__
125:
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