Annotation of loncom/auth/lonlogout.pm, revision 1.42.2.2.2.2
1.1 www 1: # The LearningOnline Network
2: # Logout Handler
1.3 www 3: #
1.42.2.2.2.2! raeburn 4: # $Id: lonlogout.pm,v 1.42.2.2.2.1 2012/02/01 18:13:46 raeburn Exp $
1.3 www 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: #
1.1 www 28:
1.36 jms 29: =head1 NAME
30:
31: Apache::lonlogout
32:
33: =head1 SYNOPSIS
34:
35:
36: This is part of the LearningOnline Network with CAPA project
37: described at http://www.lon-capa.org.
38:
39:
40: =cut
41:
1.1 www 42: package Apache::lonlogout;
43:
44: use strict;
45: use Apache::Constants qw(:common);
46: use Apache::File;
47: use Apache::lonnet;
1.2 www 48: use Apache::lonmenu;
1.1 www 49: use CGI::Cookie();
1.11 www 50: use Apache::lonlocal;
1.1 www 51:
52: sub handler {
53: my $r = shift;
54:
1.17 albertel 55: #Check for cookie
1.1 www 56: my $requrl=$r->uri;
1.29 albertel 57: my $handle = &Apache::lonnet::check_for_valid_session($r);
1.17 albertel 58: #check if cookie still valid
1.29 albertel 59: if ($handle eq '') {
1.17 albertel 60: $r->log_reason("Cookie $handle not valid", $r->filename);
61: return FORBIDDEN;
62: }
63:
64: #we've got a valid user
1.31 www 65: #any locks in place?
66: my $locknum=&Apache::lonnet::get_locks();
67: if ($locknum) { return 409; }
68: #nope, go ahead
1.17 albertel 69: my @profile;
1.29 albertel 70: my $lonidsdir=$r->dir_config('lonIDsDir');
1.21 albertel 71: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
1.17 albertel 72: unlink("$lonidsdir/$handle.id");
73: my %temp=('logout' => time);
74: &Apache::lonnet::put('email_status',\%temp);
1.21 albertel 75: &Apache::lonnet::log($env{'user.domain'},
76: $env{'user.name'},
77: $env{'user.home'},
1.17 albertel 78: "Logout $ENV{'REMOTE_ADDR'}");
1.25 albertel 79:
1.17 albertel 80: &Apache::loncommon::content_type($r,'text/html');
1.25 albertel 81:
82: #expire the cookie
83: my $c = new CGI::Cookie(-name => 'lonID',
84: -value => '',
85: -expires => '-10y',);
86: $r->header_out('Set-cookie' => $c);
87:
1.17 albertel 88: $r->send_http_header;
89: return OK if $r->header_only;
1.2 www 90: # -------------------------------------------------------- Menu script and info
91:
1.42.2.1 raeburn 92: my $windowinfo=&Apache::lonmenu::close();
93: $windowinfo.=&Apache::lonnavmaps::close();
1.6 www 94: # ---------------------------------------------------------------- Get handover
95: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['handover']);
96: my $switch='';
1.18 albertel 97: my $start_page='';
1.7 www 98: my $relogmessage='';
1.14 albertel 99: if ($env{'form.handover'}) {
1.17 albertel 100: $switch='<meta HTTP-EQUIV="Refresh" CONTENT="0.5; url='.
1.37 bisitz 101: $env{'form.handover'}.'" />';
1.17 albertel 102: $start_page=&Apache::loncommon::start_page('Switching Server ...',
103: $switch);
104: } else {
1.19 albertel 105: $start_page=&Apache::loncommon::start_page('Logged Out',undef,
1.42.2.1 raeburn 106: {'no_inline_link' => 1,
107: 'no_nav_bar' => 1,});
1.26 albertel 108:
1.32 bisitz 109: $relogmessage.='<h1>'.&mt('Goodbye').'</h1>'
110: .'<p>'.&mt('Thank you for using LON-CAPA.').'</p>';
1.26 albertel 111:
1.42 raeburn 112: my $domain = $env{'user.domain'};
1.26 albertel 113: if (!$env{'request.sso.norelogin'}) {
1.42 raeburn 114: my ($relogin_server,$login_url);
1.26 albertel 115: if ($env{'request.sso.reloginserver'}) {
116: $relogin_server = $env{'request.sso.reloginserver'};
1.42 raeburn 117: } else {
118: my %domdefaults = &Apache::lonnet::get_domain_defaults($domain);
119: if ($domdefaults{'portal_def'}) {
120: $login_url = $domdefaults{'portal_def'};
121: } else {
122: my $checkloginvia = 1;
1.42.2.2.2.1 raeburn 123: my ($lonhost,$server,$path,$isredirect) =
1.42 raeburn 124: &Apache::lonnet::choose_server($domain,$checkloginvia);
125: if ($server && $lonhost) {
126: $login_url = $Apache::lonnet::protocol{$lonhost}.
127: '://'.$server.$path;
1.42.2.2.2.1 raeburn 128: if (($path eq '') && (!$isredirect)) {
129: my $serverhomeID =
130: &Apache::lonnet::get_server_homeID($lonhost);
131: my $serverhomedom =
132: &Apache::lonnet::host_domain($serverhomeID);
133: if ($serverhomedom ne $domain) {
134: $path = '/adm/login';
135: $login_url .= $path;
136: }
137: }
1.42.2.2 raeburn 138: if ($path eq '/adm/login' && $domain ne '') {
139: $login_url .= '?domain='.$domain;
140: }
1.42 raeburn 141: }
142: }
143: }
144: if ($login_url eq '') {
145: $login_url = $relogin_server.'/adm/'.
146: ($env{'request.sso.login'} ? 'roles': 'login?domain='.$domain);
147: }
1.32 bisitz 148: $relogmessage.='<p>'.&mt('You have been successfully logged out.').' '
149: .&mt('You can [_1]close this window[_2] now.'
1.34 bisitz 150: ,'','') # ,'<a href="javascript:self.close();">','</a>')
151: .'</p>';
1.33 jms 152: =pod
153:
154: =head1 NOTES:
155:
1.34 bisitz 156: '<a href="javascript:self.close();">','</a>'
1.33 jms 157:
158: Due to security reasons in new web browsers a window could only be closed with java script, if this window has also been opend with javascript. This is not done here which means that in most cases the close link will not work. Unless we find another solution, this link should not be offered. (Stefan Bisitz, 2008-08-01)
159:
160: =cut
1.42.2.2.2.2! raeburn 161:
1.34 bisitz 162: $relogmessage.='<p>'.&mt('[_1]Log in again[_2]'
1.42 raeburn 163: ,'<a href="'.$login_url.'">','</a>')
1.42.2.2.2.2! raeburn 164: .(' 'x6).&mt('[_1]Return to course information page[_2]'
! 165: ,'<a href="http://relate.mit.edu/mechanicscourse">'
! 166: ,'</a>')
1.32 bisitz 167: .'</p>';
1.26 albertel 168: }
1.20 albertel 169: if ($env{'request.sso.login'}
1.26 albertel 170: && defined($r->dir_config("lonSSOUserLogoutMessageFile_$domain"))) {
171: open(my $fh,$r->dir_config("lonSSOUserLogoutMessageFile_$domain"));
172: $relogmessage.= join('',<$fh>);
173: }
174: if ($env{'request.sso.login'}
1.27 albertel 175: && defined($r->dir_config('lonSSOUserLogoutMessageFile'))) {
1.20 albertel 176: open(my $fh,$r->dir_config('lonSSOUserLogoutMessageFile'));
177: $relogmessage.= join('',<$fh>);
178: }
179:
1.17 albertel 180: }
1.18 albertel 181: my $end_page=&Apache::loncommon::end_page();
1.2 www 182: # --------------------------------------------------------------- Screen Output
1.17 albertel 183: $r->print(<<ENDDOCUMENT);
1.16 albertel 184: $start_page
1.42.2.1 raeburn 185: $windowinfo
1.7 www 186: $relogmessage
1.16 albertel 187: $end_page
1.1 www 188: ENDDOCUMENT
1.28 albertel 189: $r->register_cleanup(\&flush_course_logs);
190: return OK;
191: }
192:
193: sub flush_course_logs {
1.17 albertel 194: &Apache::lonnet::flushcourselogs();
1.28 albertel 195: return OK;
1.1 www 196: }
197:
198: 1;
199: __END__
200:
201:
202:
203:
204:
205:
206:
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