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Annotation of loncom/auth/lonlogout.pm, revision 1.18

1.1       www         1: # The LearningOnline Network
                      2: # Logout Handler
1.3       www         3: #
1.18    ! albertel    4: # $Id: lonlogout.pm,v 1.17 2006/04/05 22:28:58 albertel 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: 
                     29: package Apache::lonlogout;
                     30: 
                     31: use strict;
                     32: use Apache::Constants qw(:common);
                     33: use Apache::File;
                     34: use Apache::lonnet;
1.2       www        35: use Apache::lonmenu;
1.1       www        36: use CGI::Cookie();
1.11      www        37: use Apache::lonlocal;
1.1       www        38: 
                     39: sub handler {
                     40:     my $r = shift;
                     41: 
1.17      albertel   42:     #Check for cookie
1.1       www        43:     my $requrl=$r->uri;
                     44:     my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
                     45:     my $lonid=$cookies{'lonID'};
                     46:     my $cookie;
1.17      albertel   47:     if (!$lonid) {
                     48: 	return FORBIDDEN;
                     49:     }
                     50: 
                     51:     #check if cookie still valid
                     52:     my $handle=$lonid->value;
                     53:     $handle=~s/\W//g;
                     54:     my $lonidsdir=$r->dir_config('lonIDsDir');
                     55:     if ((!-e "$lonidsdir/$handle.id") || ($handle eq '')) {
                     56: 	$r->log_reason("Cookie $handle not valid", $r->filename); 
                     57: 	return FORBIDDEN;
                     58:     }
                     59: 
                     60:     #we've got a valid user
                     61:     my @profile;
                     62:     my %sessionhash;
                     63:     {
                     64: 	my $idf=Apache::File->new("$lonidsdir/$handle.id");
                     65: 	@profile=<$idf>;
                     66:     }
                     67:     my $envi;
                     68:     for ($envi=0;$envi<=$#profile;$envi++) {
                     69: 	chomp($profile[$envi]);
                     70: 	my ($envname,$envvalue)=split(/=/,$profile[$envi]);
                     71: 	$sessionhash{$envname}=$envvalue;
                     72:     }
                     73:     unlink("$lonidsdir/$handle.id");
                     74:     my %temp=('logout' => time);
                     75:     &Apache::lonnet::put('email_status',\%temp);
                     76:     &Apache::lonnet::log($sessionhash{'user.domain'},
                     77: 			 $sessionhash{'user.name'},
                     78: 			 $sessionhash{'user.home'},
                     79: 			 "Logout $ENV{'REMOTE_ADDR'}");
                     80:     &Apache::loncommon::content_type($r,'text/html');
                     81:     $r->send_http_header;
                     82:     return OK if $r->header_only;
1.2       www        83: # -------------------------------------------------------- Menu script and info
                     84: 
                     85:     my $windowinfo=&Apache::lonmenu::close();
1.13      albertel   86:     $windowinfo.=&Apache::lonnavmaps::close();
1.6       www        87: # ---------------------------------------------------------------- Get handover
                     88:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['handover']);
                     89:     my $switch='';
1.18    ! albertel   90:     my $start_page='';
1.7       www        91:     my $relogmessage='';
1.14      albertel   92:     if ($env{'form.handover'}) {
1.17      albertel   93: 	$switch='<meta HTTP-EQUIV="Refresh" CONTENT="0.5; url='.
                     94: 	    $env{'form.handover'}.'">';
                     95: 	$start_page=&Apache::loncommon::start_page('Switching Server ...',
                     96: 						   $switch);
                     97:     } else {
                     98: 	$start_page=&Apache::loncommon::start_page('Logged Out');
                     99: 	my %lt=&Apache::lonlocal::texthash('gb' => 'Goodbye',
                    100: 					   'cw' => 'close this window',
                    101: 					   'li' => 'log in again',
                    102: 					   'pe' => 'Please either',
                    103: 					   'or' => 'or');
                    104: 	$relogmessage=(<<ENDRELOG);
                    105: 	<h1>$lt{'gb'}!</h1>
                    106: 	    $lt{'pe'} <a href="javascript:self.close();">$lt{'cw'}</a> $lt{'or'}
                    107: 	<a href="/adm/login?domain=$sessionhash{'user.domain'}">$lt{'li'}</a>.
1.7       www       108: ENDRELOG
1.17      albertel  109:     }
1.18    ! albertel  110:     my $end_page=&Apache::loncommon::end_page();
1.2       www       111: # --------------------------------------------------------------- Screen Output
1.17      albertel  112:     $r->print(<<ENDDOCUMENT);
1.16      albertel  113: $start_page
1.2       www       114: $windowinfo
1.7       www       115: $relogmessage
1.16      albertel  116: $end_page
1.1       www       117: ENDDOCUMENT
1.17      albertel  118:     &Apache::lonnet::flushcourselogs();
                    119:     return OK; 
1.1       www       120: }
                    121: 
                    122: 1;
                    123: __END__
                    124: 
                    125: 
                    126: 
                    127: 
                    128: 
                    129: 
                    130: 
                    131: