Annotation of loncom/auth/lonlogout.pm, revision 1.45.2.8
1.1 www 1: # The LearningOnline Network
2: # Logout Handler
1.3 www 3: #
1.45.2.8! raeburn 4: # $Id: lonlogout.pm,v 1.45.2.7 2019/08/03 22:52:25 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);
1.45.2.8! raeburn 85: my $ip = &Apache::lonnet::get_requestor_ip();
1.17 albertel 86: &Apache::lonnet::put('email_status',\%temp);
1.21 albertel 87: &Apache::lonnet::log($env{'user.domain'},
88: $env{'user.name'},
89: $env{'user.home'},
1.45.2.8! raeburn 90: "Logout $ip");
1.25 albertel 91:
1.17 albertel 92: &Apache::loncommon::content_type($r,'text/html');
1.25 albertel 93:
1.45.2.7 raeburn 94: #expire the cookies
95: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
96: foreach my $name (keys(%cookies)) {
97: next unless ($name =~ /^lon(|S|Link|Pub)ID$/);
98: my $c = new CGI::Cookie(-name => $name,
99: -value => '',
100: -expires => '-10y',);
101: $r->headers_out->add('Set-cookie' => $c);
102: }
1.17 albertel 103: $r->send_http_header;
104: return OK if $r->header_only;
1.2 www 105: # -------------------------------------------------------- Menu script and info
106:
1.45.2.1 raeburn 107: my $windowinfo=&Apache::lonmenu::close();
1.6 www 108: # ---------------------------------------------------------------- Get handover
109: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['handover']);
110: my $switch='';
1.18 albertel 111: my $start_page='';
1.7 www 112: my $relogmessage='';
1.14 albertel 113: if ($env{'form.handover'}) {
1.17 albertel 114: $switch='<meta HTTP-EQUIV="Refresh" CONTENT="0.5; url='.
1.37 bisitz 115: $env{'form.handover'}.'" />';
1.17 albertel 116: $start_page=&Apache::loncommon::start_page('Switching Server ...',
117: $switch);
118: } else {
1.45.2.3 raeburn 119: my $domain = $env{'user.domain'};
1.45.2.4 raeburn 120: my ($headextra,$ssofile);
121: if ($env{'request.sso.login'}) {
122: my $londocroot = $r->dir_config('lonDocRoot');
123: if ($domain =~ /^$match_domain$/) {
124: if (defined($r->dir_config("lonSSOUserLogoutHeadFile_$domain"))) {
125: $ssofile = '/'.&Apache::loncommon::clean_path($r->dir_config("lonSSOUserLogoutHeadFile_$domain"));
126: if ($ssofile eq $r->dir_config("lonSSOUserLogoutHeadFile_$domain")) {
127: if ($ssofile =~ /^\Q$londocroot\E/) {
128: if (open(my $fh,'<',$ssofile)) {
129: $headextra = join('',<$fh>);
130: close($fh);
131: }
132: }
133: }
134: }
135: }
136: if (defined($r->dir_config('lonSSOUserLogoutHeadFile'))) {
137: $ssofile = '/'.&Apache::loncommon::clean_path($r->dir_config('lonSSOUserLogoutHeadFile'));
138: if ($ssofile eq $r->dir_config('lonSSOUserLogoutHeadFile')) {
139: if ($ssofile =~ /^\Q$londocroot\E/) {
140: if (open(my $fh,'<',$ssofile)) {
141: $headextra.= join('',<$fh>);
142: close($fh);
143: }
144: }
145: }
1.45.2.3 raeburn 146: }
147: }
148: $start_page=&Apache::loncommon::start_page('Logged Out',$headextra,
1.45.2.1 raeburn 149: {'no_inline_link' => 1,
150: 'no_nav_bar' => 1,});
1.26 albertel 151:
1.32 bisitz 152: $relogmessage.='<h1>'.&mt('Goodbye').'</h1>'
153: .'<p>'.&mt('Thank you for using LON-CAPA.').'</p>';
1.26 albertel 154:
155: if (!$env{'request.sso.norelogin'}) {
1.42 raeburn 156: my ($relogin_server,$login_url);
1.26 albertel 157: if ($env{'request.sso.reloginserver'}) {
158: $relogin_server = $env{'request.sso.reloginserver'};
1.42 raeburn 159: } else {
160: my %domdefaults = &Apache::lonnet::get_domain_defaults($domain);
161: if ($domdefaults{'portal_def'}) {
162: $login_url = $domdefaults{'portal_def'};
163: } else {
164: my $checkloginvia = 1;
1.44 raeburn 165: my ($lonhost,$server,$path,$isredirect) =
1.42 raeburn 166: &Apache::lonnet::choose_server($domain,$checkloginvia);
167: if ($server && $lonhost) {
168: $login_url = $Apache::lonnet::protocol{$lonhost}.
169: '://'.$server.$path;
1.44 raeburn 170: if (($path eq '') && (!$isredirect)) {
171: my $serverhomeID =
1.45 raeburn 172: &Apache::lonnet::get_server_homeID($server);
1.44 raeburn 173: my $serverhomedom =
174: &Apache::lonnet::host_domain($serverhomeID);
175: if ($serverhomedom ne $domain) {
176: $path = '/adm/login';
177: $login_url .= $path;
178: }
179: }
1.43 raeburn 180: if ($path eq '/adm/login' && $domain ne '') {
181: $login_url .= '?domain='.$domain;
182: }
1.42 raeburn 183: }
184: }
185: }
186: if ($login_url eq '') {
187: $login_url = $relogin_server.'/adm/'.
188: ($env{'request.sso.login'} ? 'roles': 'login?domain='.$domain);
189: }
1.32 bisitz 190: $relogmessage.='<p>'.&mt('You have been successfully logged out.').' '
191: .&mt('You can [_1]close this window[_2] now.'
1.34 bisitz 192: ,'','') # ,'<a href="javascript:self.close();">','</a>')
193: .'</p>';
1.33 jms 194: =pod
195:
196: =head1 NOTES:
197:
1.34 bisitz 198: '<a href="javascript:self.close();">','</a>'
1.33 jms 199:
1.45.2.3 raeburn 200: 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 201:
202: =cut
1.34 bisitz 203: $relogmessage.='<p>'.&mt('[_1]Log in again[_2]'
1.42 raeburn 204: ,'<a href="'.$login_url.'">','</a>')
1.32 bisitz 205: .'</p>';
1.26 albertel 206: }
1.20 albertel 207: if ($env{'request.sso.login'}
1.26 albertel 208: && defined($r->dir_config("lonSSOUserLogoutMessageFile_$domain"))) {
1.45.2.5 raeburn 209: if (open(my $fh,'<',$r->dir_config("lonSSOUserLogoutMessageFile_$domain"))) {
1.45.2.3 raeburn 210: $relogmessage.= join('',<$fh>);
211: close($fh);
212: }
1.26 albertel 213: }
214: if ($env{'request.sso.login'}
1.27 albertel 215: && defined($r->dir_config('lonSSOUserLogoutMessageFile'))) {
1.45.2.5 raeburn 216: if (open(my $fh,'<',$r->dir_config('lonSSOUserLogoutMessageFile'))) {
1.45.2.3 raeburn 217: $relogmessage.= join('',<$fh>);
218: close($fh);
219: }
1.20 albertel 220: }
1.17 albertel 221: }
1.18 albertel 222: my $end_page=&Apache::loncommon::end_page();
1.2 www 223: # --------------------------------------------------------------- Screen Output
1.17 albertel 224: $r->print(<<ENDDOCUMENT);
1.16 albertel 225: $start_page
1.45.2.1 raeburn 226: $windowinfo
1.7 www 227: $relogmessage
1.16 albertel 228: $end_page
1.1 www 229: ENDDOCUMENT
1.45.2.6 raeburn 230: if ($env{'request.balancercookie'}) {
231: my ($balancer,$cookie) = split(/:/,$env{'request.balancercookie'});
232: if ((&Apache::lonnet::hostname($balancer)) && ($cookie =~ /^[a-f0-9]{32}$/)) {
233: $cookie = $env{'user.domain'}.'_'.$env{'user.name'}.'_'.$cookie;
234: &Apache::lonnet::delbalcookie($cookie,$balancer);
235: }
236: }
1.28 albertel 237: $r->register_cleanup(\&flush_course_logs);
238: return OK;
239: }
240:
241: sub flush_course_logs {
1.17 albertel 242: &Apache::lonnet::flushcourselogs();
1.28 albertel 243: return OK;
1.1 www 244: }
245:
246: 1;
247: __END__
248:
249:
250:
251:
252:
253:
254:
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