Annotation of loncom/auth/lonlogout.pm, revision 1.32

1.1       www         1: # The LearningOnline Network
                      2: # Logout Handler
1.3       www         3: #
1.32    ! bisitz      4: # $Id: lonlogout.pm,v 1.31 2008/05/13 15:06:34 www 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: 	
1.32    ! bisitz     95:         $relogmessage.='<h1>'.&mt('Goodbye').'</h1>'
        !            96:                       .'<p>'.&mt('Thank you for using LON-CAPA.').'</p>';
1.26      albertel   97: 
                     98: 	if (!$env{'request.sso.norelogin'}) {
                     99: 	    my $relogin_server;
                    100: 	    if ($env{'request.sso.reloginserver'}) {
                    101: 		$relogin_server = $env{'request.sso.reloginserver'};
                    102: 	    }
                    103: 	    my $login_url = $relogin_server.'/adm/'.
                    104: 		($env{'request.sso.login'} ? 'roles': 'login');
                    105: 
1.32    ! bisitz    106:             $relogmessage.='<p>'.&mt('You have been successfully logged out.').' '
        !           107:                           .&mt('You can [_1]close this window[_2] now.'
        !           108:                               ,'','')
        !           109: #                              ,'<a href="javascript:self.close();">','</a>');
        !           110: # Due to security reasons in new web browsers a window could only be closed with java script, if this window has also been opend with javascript. This is not done here which means that in most cases the close link will not work. Unless we find another solution, this link should not be offered. (Stefan Bisitz, 2008-08-01)
        !           111:                           .'</p>'
        !           112:                           .'<p>'.&mt('[_1]Log in again[_2]'
        !           113:                               ,'<a href="'.$login_url.'?domain='.$env{'user.domain'}.'">','</a>')
        !           114:                           .'</p>';
1.26      albertel  115:         }
                    116: 	my $domain = $env{'user.domain'};
1.20      albertel  117:         if ($env{'request.sso.login'}
1.26      albertel  118: 	    && defined($r->dir_config("lonSSOUserLogoutMessageFile_$domain"))) {
                    119: 	    open(my $fh,$r->dir_config("lonSSOUserLogoutMessageFile_$domain"));
                    120: 	    $relogmessage.= join('',<$fh>);
                    121: 	}
                    122: 	if ($env{'request.sso.login'}
1.27      albertel  123: 	    && defined($r->dir_config('lonSSOUserLogoutMessageFile'))) {
1.20      albertel  124: 	    open(my $fh,$r->dir_config('lonSSOUserLogoutMessageFile'));
                    125: 	    $relogmessage.= join('',<$fh>);
                    126: 	}
                    127: 
1.17      albertel  128:     }
1.18      albertel  129:     my $end_page=&Apache::loncommon::end_page();
1.2       www       130: # --------------------------------------------------------------- Screen Output
1.17      albertel  131:     $r->print(<<ENDDOCUMENT);
1.16      albertel  132: $start_page
1.2       www       133: $windowinfo
1.7       www       134: $relogmessage
1.16      albertel  135: $end_page
1.1       www       136: ENDDOCUMENT
1.28      albertel  137:     $r->register_cleanup(\&flush_course_logs);
                    138:     return OK; 
                    139: }
                    140: 
                    141: sub flush_course_logs {
1.17      albertel  142:     &Apache::lonnet::flushcourselogs();
1.28      albertel  143:     return OK;
1.1       www       144: }
                    145: 
                    146: 1;
                    147: __END__
                    148: 
                    149: 
                    150: 
                    151: 
                    152: 
                    153: 
                    154: 
                    155: 

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