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Annotation of loncom/auth/lonlogout.pm, revision 1.8

1.1       www         1: # The LearningOnline Network
                      2: # Logout Handler
1.3       www         3: #
1.8     ! matthew     4: # $Id: lonlogout.pm,v 1.7 2003/03/02 04:08:41 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: # (Cookie Based Access Handler
                     29: # 5/21/99,5/22,5/29,5/31,6/15,16/11,22/11,
                     30: # 01/06,01/13 Gerd Kortemeyer)
1.5       www        31: # 05/31,11/29,12/29 Gerd Kortemeyer
1.1       www        32: 
                     33: package Apache::lonlogout;
                     34: 
                     35: use strict;
                     36: use Apache::Constants qw(:common);
                     37: use Apache::File;
                     38: use Apache::lonnet;
1.2       www        39: use Apache::lonmenu;
1.1       www        40: use CGI::Cookie();
                     41: 
                     42: sub handler {
                     43:     my $r = shift;
                     44: 
                     45:     my $requrl=$r->uri;
                     46:     my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
                     47:     my $lonid=$cookies{'lonID'};
                     48:     my $cookie;
                     49:     if ($lonid) {
                     50: 	my $handle=$lonid->value;
                     51:         $handle=~s/\W//g;
                     52:         my $lonidsdir=$r->dir_config('lonIDsDir');
                     53:         if ((-e "$lonidsdir/$handle.id") && ($handle ne '')) {
                     54:            my @profile;
                     55:            my %sessionhash;
                     56: 	    {
                     57:              my $idf=Apache::File->new("$lonidsdir/$handle.id");
                     58:              @profile=<$idf>;
                     59: 	    }
                     60:             my $envi;
                     61:             for ($envi=0;$envi<=$#profile;$envi++) {
                     62: 		chomp($profile[$envi]);
                     63: 		my ($envname,$envvalue)=split(/=/,$profile[$envi]);
                     64:                 $sessionhash{$envname}=$envvalue;
                     65:             }
                     66:             unlink("$lonidsdir/$handle.id");
1.5       www        67: 	    my %temp=('logout' => time);
                     68: 	    &Apache::lonnet::put('email_status',\%temp);
1.1       www        69: 	    &Apache::lonnet::log($sessionhash{'user.domain'},
                     70:                                  $sessionhash{'user.name'},
                     71:                                  $sessionhash{'user.home'},
                     72:                                  "Logout $ENV{'REMOTE_ADDR'}");
                     73:             $r->content_type('text/html');
                     74:             $r->send_http_header;
                     75:             return OK if $r->header_only;
1.2       www        76: # -------------------------------------------------------- Menu script and info
                     77: 
                     78:     my $windowinfo=&Apache::lonmenu::close();
1.6       www        79: # ---------------------------------------------------------------- Get handover
                     80:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['handover']);
                     81:     my $switch='';
1.7       www        82:     my $bodytag='';
                     83:     my $relogmessage='';
1.6       www        84:     if ($ENV{'form.handover'}) {
                     85:        $switch='<meta HTTP-EQUIV="Refresh" CONTENT="0.5; url='.
                     86: 	   $ENV{'form.handover'}.'">';
1.7       www        87:        $bodytag=&Apache::loncommon::bodytag('Switching Server ...');
                     88:    } else {
                     89:        $bodytag=&Apache::loncommon::bodytag('Logged Out');
                     90:        $relogmessage=(<<ENDRELOG);
                     91: <h1>Goodbye!</h1>
                     92: Please either <a href="javascript:self.close();">close this window</a> or
1.8     ! matthew    93: <a href="/adm/login">log in again</a>.
1.7       www        94: ENDRELOG
                     95:    }
1.2       www        96: # --------------------------------------------------------------- Screen Output
1.1       www        97:             $r->print(<<ENDDOCUMENT);
                     98: <html>
1.6       www        99: <head><title>The LearningOnline Network with CAPA Logout</title>
                    100: $switch
                    101: </head>
1.7       www       102: $bodytag
1.2       www       103: $windowinfo
1.7       www       104: $relogmessage
                    105: </body>
1.1       www       106: </html>
                    107: ENDDOCUMENT
1.4       www       108:             &Apache::lonnet::flushcourselogs();
1.1       www       109:             return OK; 
                    110:         } else { 
                    111:             $r->log_reason("Cookie $handle not valid", $r->filename); 
                    112:         }
                    113:     }
                    114:     return FORBIDDEN;
                    115: }
                    116: 
                    117: 1;
                    118: __END__
                    119: 
                    120: 
                    121: 
                    122: 
                    123: 
                    124: 
                    125: 
                    126: