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Initial revision

    1: # The LearningOnline Network
    2: # Cookie Based Access Handler for Construction Area
    3: # (lonacc: 5/21/99,5/22,5/29,5/31 Gerd Kortemeyer)
    4: # 6/15 Gerd Kortemeyer
    5: 
    6: package Apache::loncacc;
    7: 
    8: use strict;
    9: use Apache::Constants qw(:common :http);
   10: use CGI::Cookie();
   11: 
   12: sub handler {
   13:     my $r = shift;
   14:     my $requrl=$r->uri;
   15:     my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
   16:     my $lonid=$cookies{'lonID'};
   17:     my $cookie;
   18:     if ($lonid) {
   19: 	my $handle=$lonid->value;
   20:         $handle=~s/\W//g;
   21:         my $lonidsdir=$r->dir_config('lonIDsDir');
   22:         if ((-e "$lonidsdir/$handle.id") && ($handle ne '')) {
   23:             my $ownername=$requrl;
   24:             $ownername=~s/\/\~(\w+).*/\1/;
   25:             my $ownerdomain=$r->dir_config('lonDefDomain');
   26:             my @handleparts=split(/\_/,$handle);
   27:             my $username=$handleparts[0];
   28:             my $domain=$handleparts[2];
   29:             if (($username ne $ownername) || ($domain ne $ownerdomain)) {
   30:                 $r->log_reason
   31:                    ("$username at $domain not authorized", $r->filename); 
   32: 	        return HTTP_NOT_ACCEPTABLE;
   33:             }
   34:             return OK; 
   35:         } else { 
   36:             $r->log_reason("Cookie $handle not valid", $r->filename) 
   37:         };
   38:     }
   39:     $cookie=CGI::Cookie->new(-name  => 'lonURL',
   40:                              -value => $requrl, 
   41:                              -path  => '/');
   42:     $r->err_headers_out->add('Set-Cookie' => $cookie);
   43:     return FORBIDDEN;
   44: }
   45: 
   46: 1;
   47: __END__
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