# The LearningOnline Network
# Logout Handler
#
# $Id: lonlogout.pm,v 1.31 2008/05/13 15:06:34 www Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# LON-CAPA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#
package Apache::lonlogout;
use strict;
use Apache::Constants qw(:common);
use Apache::File;
use Apache::lonnet;
use Apache::lonmenu;
use CGI::Cookie();
use Apache::lonlocal;
sub handler {
my $r = shift;
#Check for cookie
my $requrl=$r->uri;
my $handle = &Apache::lonnet::check_for_valid_session($r);
#check if cookie still valid
if ($handle eq '') {
$r->log_reason("Cookie $handle not valid", $r->filename);
return FORBIDDEN;
}
#we've got a valid user
#any locks in place?
my $locknum=&Apache::lonnet::get_locks();
if ($locknum) { return 409; }
#nope, go ahead
my @profile;
my $lonidsdir=$r->dir_config('lonIDsDir');
&Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
unlink("$lonidsdir/$handle.id");
my %temp=('logout' => time);
&Apache::lonnet::put('email_status',\%temp);
&Apache::lonnet::log($env{'user.domain'},
$env{'user.name'},
$env{'user.home'},
"Logout $ENV{'REMOTE_ADDR'}");
&Apache::loncommon::content_type($r,'text/html');
#expire the cookie
my $c = new CGI::Cookie(-name => 'lonID',
-value => '',
-expires => '-10y',);
$r->header_out('Set-cookie' => $c);
$r->send_http_header;
return OK if $r->header_only;
# -------------------------------------------------------- Menu script and info
my $windowinfo=&Apache::lonmenu::close();
$windowinfo.=&Apache::lonnavmaps::close();
# ---------------------------------------------------------------- Get handover
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['handover']);
my $switch='';
my $start_page='';
my $relogmessage='';
if ($env{'form.handover'}) {
$switch='<meta HTTP-EQUIV="Refresh" CONTENT="0.5; url='.
$env{'form.handover'}.'">';
$start_page=&Apache::loncommon::start_page('Switching Server ...',
$switch);
} else {
$start_page=&Apache::loncommon::start_page('Logged Out',undef,
{'no_inline_link' => 1,});
$relogmessage.='<h1>'.&mt('Goodbye').'</h1>';
if (!$env{'request.sso.norelogin'}) {
my $relogin_server;
if ($env{'request.sso.reloginserver'}) {
$relogin_server = $env{'request.sso.reloginserver'};
}
my $login_url = $relogin_server.'/adm/'.
($env{'request.sso.login'} ? 'roles': 'login');
$relogmessage.=&mt('Please either [_1]close this window[_2] or [_3]log in again[_4].'
,'<a href="javascript:self.close();">','</a>'
,'<a href="'.$login_url.'?domain='.$env{'user.domain'}.'">','</a>');
}
my $domain = $env{'user.domain'};
if ($env{'request.sso.login'}
&& defined($r->dir_config("lonSSOUserLogoutMessageFile_$domain"))) {
open(my $fh,$r->dir_config("lonSSOUserLogoutMessageFile_$domain"));
$relogmessage.= join('',<$fh>);
}
if ($env{'request.sso.login'}
&& defined($r->dir_config('lonSSOUserLogoutMessageFile'))) {
open(my $fh,$r->dir_config('lonSSOUserLogoutMessageFile'));
$relogmessage.= join('',<$fh>);
}
}
my $end_page=&Apache::loncommon::end_page();
# --------------------------------------------------------------- Screen Output
$r->print(<<ENDDOCUMENT);
$start_page
$windowinfo
$relogmessage
$end_page
ENDDOCUMENT
$r->register_cleanup(\&flush_course_logs);
return OK;
}
sub flush_course_logs {
&Apache::lonnet::flushcourselogs();
return OK;
}
1;
__END__
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