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Annotation of loncom/auth/lonlogout.pm, revision 1.31

1.1       www         1: # The LearningOnline Network
                      2: # Logout Handler
1.3       www         3: #
1.31    ! www         4: # $Id: lonlogout.pm,v 1.30 2008/04/02 12:29:38 bisitz 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;
1.29      albertel   44:     my $handle = &Apache::lonnet::check_for_valid_session($r);
1.17      albertel   45:     #check if cookie still valid
1.29      albertel   46:     if ($handle eq '') {
1.17      albertel   47: 	$r->log_reason("Cookie $handle not valid", $r->filename); 
                     48: 	return FORBIDDEN;
                     49:     }
                     50: 
                     51:     #we've got a valid user
1.31    ! www        52:     #any locks in place?
        !            53:     my $locknum=&Apache::lonnet::get_locks();
        !            54:     if ($locknum) { return 409; }
        !            55:     #nope, go ahead
1.17      albertel   56:     my @profile;
1.29      albertel   57:     my $lonidsdir=$r->dir_config('lonIDsDir');
1.21      albertel   58:     &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
1.17      albertel   59:     unlink("$lonidsdir/$handle.id");
                     60:     my %temp=('logout' => time);
                     61:     &Apache::lonnet::put('email_status',\%temp);
1.21      albertel   62:     &Apache::lonnet::log($env{'user.domain'},
                     63: 			 $env{'user.name'},
                     64: 			 $env{'user.home'},
1.17      albertel   65: 			 "Logout $ENV{'REMOTE_ADDR'}");
1.25      albertel   66: 
1.17      albertel   67:     &Apache::loncommon::content_type($r,'text/html');
1.25      albertel   68: 
                     69:     #expire the cookie
                     70:     my $c = new CGI::Cookie(-name    => 'lonID',
                     71: 			    -value   => '',
                     72: 			    -expires => '-10y',);
                     73:     $r->header_out('Set-cookie' => $c);
                     74: 
1.17      albertel   75:     $r->send_http_header;
                     76:     return OK if $r->header_only;
1.2       www        77: # -------------------------------------------------------- Menu script and info
                     78: 
                     79:     my $windowinfo=&Apache::lonmenu::close();
1.13      albertel   80:     $windowinfo.=&Apache::lonnavmaps::close();
1.6       www        81: # ---------------------------------------------------------------- Get handover
                     82:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['handover']);
                     83:     my $switch='';
1.18      albertel   84:     my $start_page='';
1.7       www        85:     my $relogmessage='';
1.14      albertel   86:     if ($env{'form.handover'}) {
1.17      albertel   87: 	$switch='<meta HTTP-EQUIV="Refresh" CONTENT="0.5; url='.
                     88: 	    $env{'form.handover'}.'">';
                     89: 	$start_page=&Apache::loncommon::start_page('Switching Server ...',
                     90: 						   $switch);
                     91:     } else {
1.19      albertel   92: 	$start_page=&Apache::loncommon::start_page('Logged Out',undef,
                     93: 						   {'no_inline_link' => 1,});
1.26      albertel   94: 	
1.30      bisitz     95: 	$relogmessage.='<h1>'.&mt('Goodbye').'</h1>';
1.26      albertel   96: 
                     97: 	if (!$env{'request.sso.norelogin'}) {
                     98: 	    my $relogin_server;
                     99: 	    if ($env{'request.sso.reloginserver'}) {
                    100: 		$relogin_server = $env{'request.sso.reloginserver'};
                    101: 	    }
                    102: 	    my $login_url = $relogin_server.'/adm/'.
                    103: 		($env{'request.sso.login'} ? 'roles': 'login');
                    104: 
1.30      bisitz    105: 	    $relogmessage.=&mt('Please either [_1]close this window[_2] or [_3]log in again[_4].'
                    106:                               ,'<a href="javascript:self.close();">','</a>'
                    107:                               ,'<a href="'.$login_url.'?domain='.$env{'user.domain'}.'">','</a>');
1.26      albertel  108:         }
                    109: 	my $domain = $env{'user.domain'};
1.20      albertel  110:         if ($env{'request.sso.login'}
1.26      albertel  111: 	    && defined($r->dir_config("lonSSOUserLogoutMessageFile_$domain"))) {
                    112: 	    open(my $fh,$r->dir_config("lonSSOUserLogoutMessageFile_$domain"));
                    113: 	    $relogmessage.= join('',<$fh>);
                    114: 	}
                    115: 	if ($env{'request.sso.login'}
1.27      albertel  116: 	    && defined($r->dir_config('lonSSOUserLogoutMessageFile'))) {
1.20      albertel  117: 	    open(my $fh,$r->dir_config('lonSSOUserLogoutMessageFile'));
                    118: 	    $relogmessage.= join('',<$fh>);
                    119: 	}
                    120: 
1.17      albertel  121:     }
1.18      albertel  122:     my $end_page=&Apache::loncommon::end_page();
1.2       www       123: # --------------------------------------------------------------- Screen Output
1.17      albertel  124:     $r->print(<<ENDDOCUMENT);
1.16      albertel  125: $start_page
1.2       www       126: $windowinfo
1.7       www       127: $relogmessage
1.16      albertel  128: $end_page
1.1       www       129: ENDDOCUMENT
1.28      albertel  130:     $r->register_cleanup(\&flush_course_logs);
                    131:     return OK; 
                    132: }
                    133: 
                    134: sub flush_course_logs {
1.17      albertel  135:     &Apache::lonnet::flushcourselogs();
1.28      albertel  136:     return OK;
1.1       www       137: }
                    138: 
                    139: 1;
                    140: __END__
                    141: 
                    142: 
                    143: 
                    144: 
                    145: 
                    146: 
                    147: 
                    148: