Annotation of loncom/auth/lonlogout.pm, revision 1.45.2.7
1.1 www 1: # The LearningOnline Network
2: # Logout Handler
1.3 www 3: #
1.45.2.7! raeburn 4: # $Id: lonlogout.pm,v 1.45.2.6 2019/08/01 14:30:27 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;
1.45.2.4 raeburn 48: use Apache::loncommon;
1.2 www 49: use Apache::lonmenu;
1.1 www 50: use CGI::Cookie();
1.11 www 51: use Apache::lonlocal;
1.45.2.4 raeburn 52: use LONCAPA qw(:DEFAULT :match);
1.1 www 53:
54: sub handler {
55: my $r = shift;
56:
1.17 albertel 57: #Check for cookie
1.1 www 58: my $requrl=$r->uri;
1.29 albertel 59: my $handle = &Apache::lonnet::check_for_valid_session($r);
1.17 albertel 60: #check if cookie still valid
1.29 albertel 61: if ($handle eq '') {
1.17 albertel 62: $r->log_reason("Cookie $handle not valid", $r->filename);
63: return FORBIDDEN;
64: }
65:
66: #we've got a valid user
1.31 www 67: #any locks in place?
68: my $locknum=&Apache::lonnet::get_locks();
69: if ($locknum) { return 409; }
70: #nope, go ahead
1.17 albertel 71: my @profile;
1.29 albertel 72: my $lonidsdir=$r->dir_config('lonIDsDir');
1.21 albertel 73: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
1.45.2.7! raeburn 74: if (unlink("$lonidsdir/$handle.id")) {
! 75: if (($env{'user.linkedenv'} =~ /^[a-f0-9]+_linked$/) &&
! 76: (-l "$lonidsdir/$env{'user.linkedenv'}.id") &&
! 77: (readlink("$lonidsdir/$env{'user.linkedenv'}.id") eq "$lonidsdir/$handle.id")) {
! 78: unlink("$lonidsdir/$env{'user.linkedenv'}.id");
! 79: }
! 80: }
1.45.2.2 raeburn 81: if (!$Apache::lonlocal::lh) {
82: &Apache::lonlocal::get_language_handle($r);
83: }
1.17 albertel 84: my %temp=('logout' => time);
85: &Apache::lonnet::put('email_status',\%temp);
1.21 albertel 86: &Apache::lonnet::log($env{'user.domain'},
87: $env{'user.name'},
88: $env{'user.home'},
1.17 albertel 89: "Logout $ENV{'REMOTE_ADDR'}");
1.25 albertel 90:
1.17 albertel 91: &Apache::loncommon::content_type($r,'text/html');
1.25 albertel 92:
1.45.2.7! raeburn 93: #expire the cookies
! 94: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
! 95: foreach my $name (keys(%cookies)) {
! 96: next unless ($name =~ /^lon(|S|Link|Pub)ID$/);
! 97: my $c = new CGI::Cookie(-name => $name,
! 98: -value => '',
! 99: -expires => '-10y',);
! 100: $r->headers_out->add('Set-cookie' => $c);
! 101: }
1.17 albertel 102: $r->send_http_header;
103: return OK if $r->header_only;
1.2 www 104: # -------------------------------------------------------- Menu script and info
105:
1.45.2.1 raeburn 106: my $windowinfo=&Apache::lonmenu::close();
1.6 www 107: # ---------------------------------------------------------------- Get handover
108: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['handover']);
109: my $switch='';
1.18 albertel 110: my $start_page='';
1.7 www 111: my $relogmessage='';
1.14 albertel 112: if ($env{'form.handover'}) {
1.17 albertel 113: $switch='<meta HTTP-EQUIV="Refresh" CONTENT="0.5; url='.
1.37 bisitz 114: $env{'form.handover'}.'" />';
1.17 albertel 115: $start_page=&Apache::loncommon::start_page('Switching Server ...',
116: $switch);
117: } else {
1.45.2.3 raeburn 118: my $domain = $env{'user.domain'};
1.45.2.4 raeburn 119: my ($headextra,$ssofile);
120: if ($env{'request.sso.login'}) {
121: my $londocroot = $r->dir_config('lonDocRoot');
122: if ($domain =~ /^$match_domain$/) {
123: if (defined($r->dir_config("lonSSOUserLogoutHeadFile_$domain"))) {
124: $ssofile = '/'.&Apache::loncommon::clean_path($r->dir_config("lonSSOUserLogoutHeadFile_$domain"));
125: if ($ssofile eq $r->dir_config("lonSSOUserLogoutHeadFile_$domain")) {
126: if ($ssofile =~ /^\Q$londocroot\E/) {
127: if (open(my $fh,'<',$ssofile)) {
128: $headextra = join('',<$fh>);
129: close($fh);
130: }
131: }
132: }
133: }
134: }
135: if (defined($r->dir_config('lonSSOUserLogoutHeadFile'))) {
136: $ssofile = '/'.&Apache::loncommon::clean_path($r->dir_config('lonSSOUserLogoutHeadFile'));
137: if ($ssofile eq $r->dir_config('lonSSOUserLogoutHeadFile')) {
138: if ($ssofile =~ /^\Q$londocroot\E/) {
139: if (open(my $fh,'<',$ssofile)) {
140: $headextra.= join('',<$fh>);
141: close($fh);
142: }
143: }
144: }
1.45.2.3 raeburn 145: }
146: }
147: $start_page=&Apache::loncommon::start_page('Logged Out',$headextra,
1.45.2.1 raeburn 148: {'no_inline_link' => 1,
149: 'no_nav_bar' => 1,});
1.26 albertel 150:
1.32 bisitz 151: $relogmessage.='<h1>'.&mt('Goodbye').'</h1>'
152: .'<p>'.&mt('Thank you for using LON-CAPA.').'</p>';
1.26 albertel 153:
154: if (!$env{'request.sso.norelogin'}) {
1.42 raeburn 155: my ($relogin_server,$login_url);
1.26 albertel 156: if ($env{'request.sso.reloginserver'}) {
157: $relogin_server = $env{'request.sso.reloginserver'};
1.42 raeburn 158: } else {
159: my %domdefaults = &Apache::lonnet::get_domain_defaults($domain);
160: if ($domdefaults{'portal_def'}) {
161: $login_url = $domdefaults{'portal_def'};
162: } else {
163: my $checkloginvia = 1;
1.44 raeburn 164: my ($lonhost,$server,$path,$isredirect) =
1.42 raeburn 165: &Apache::lonnet::choose_server($domain,$checkloginvia);
166: if ($server && $lonhost) {
167: $login_url = $Apache::lonnet::protocol{$lonhost}.
168: '://'.$server.$path;
1.44 raeburn 169: if (($path eq '') && (!$isredirect)) {
170: my $serverhomeID =
1.45 raeburn 171: &Apache::lonnet::get_server_homeID($server);
1.44 raeburn 172: my $serverhomedom =
173: &Apache::lonnet::host_domain($serverhomeID);
174: if ($serverhomedom ne $domain) {
175: $path = '/adm/login';
176: $login_url .= $path;
177: }
178: }
1.43 raeburn 179: if ($path eq '/adm/login' && $domain ne '') {
180: $login_url .= '?domain='.$domain;
181: }
1.42 raeburn 182: }
183: }
184: }
185: if ($login_url eq '') {
186: $login_url = $relogin_server.'/adm/'.
187: ($env{'request.sso.login'} ? 'roles': 'login?domain='.$domain);
188: }
1.32 bisitz 189: $relogmessage.='<p>'.&mt('You have been successfully logged out.').' '
190: .&mt('You can [_1]close this window[_2] now.'
1.34 bisitz 191: ,'','') # ,'<a href="javascript:self.close();">','</a>')
192: .'</p>';
1.33 jms 193: =pod
194:
195: =head1 NOTES:
196:
1.34 bisitz 197: '<a href="javascript:self.close();">','</a>'
1.33 jms 198:
1.45.2.3 raeburn 199: Due to security reasons in new web browsers a window could only be closed with javascript, if this window has also been opened 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)
1.33 jms 200:
201: =cut
1.34 bisitz 202: $relogmessage.='<p>'.&mt('[_1]Log in again[_2]'
1.42 raeburn 203: ,'<a href="'.$login_url.'">','</a>')
1.32 bisitz 204: .'</p>';
1.26 albertel 205: }
1.20 albertel 206: if ($env{'request.sso.login'}
1.26 albertel 207: && defined($r->dir_config("lonSSOUserLogoutMessageFile_$domain"))) {
1.45.2.5 raeburn 208: if (open(my $fh,'<',$r->dir_config("lonSSOUserLogoutMessageFile_$domain"))) {
1.45.2.3 raeburn 209: $relogmessage.= join('',<$fh>);
210: close($fh);
211: }
1.26 albertel 212: }
213: if ($env{'request.sso.login'}
1.27 albertel 214: && defined($r->dir_config('lonSSOUserLogoutMessageFile'))) {
1.45.2.5 raeburn 215: if (open(my $fh,'<',$r->dir_config('lonSSOUserLogoutMessageFile'))) {
1.45.2.3 raeburn 216: $relogmessage.= join('',<$fh>);
217: close($fh);
218: }
1.20 albertel 219: }
1.17 albertel 220: }
1.18 albertel 221: my $end_page=&Apache::loncommon::end_page();
1.2 www 222: # --------------------------------------------------------------- Screen Output
1.17 albertel 223: $r->print(<<ENDDOCUMENT);
1.16 albertel 224: $start_page
1.45.2.1 raeburn 225: $windowinfo
1.7 www 226: $relogmessage
1.16 albertel 227: $end_page
1.1 www 228: ENDDOCUMENT
1.45.2.6 raeburn 229: if ($env{'request.balancercookie'}) {
230: my ($balancer,$cookie) = split(/:/,$env{'request.balancercookie'});
231: if ((&Apache::lonnet::hostname($balancer)) && ($cookie =~ /^[a-f0-9]{32}$/)) {
232: $cookie = $env{'user.domain'}.'_'.$env{'user.name'}.'_'.$cookie;
233: &Apache::lonnet::delbalcookie($cookie,$balancer);
234: }
235: }
1.28 albertel 236: $r->register_cleanup(\&flush_course_logs);
237: return OK;
238: }
239:
240: sub flush_course_logs {
1.17 albertel 241: &Apache::lonnet::flushcourselogs();
1.28 albertel 242: return OK;
1.1 www 243: }
244:
245: 1;
246: __END__
247:
248:
249:
250:
251:
252:
253:
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