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Annotation of loncom/auth/lontokacc.pm, revision 1.6

1.1       www         1: # The LearningOnline Network
1.4       www         2: # Access Handler for User File Transfers
1.1       www         3: #
1.6     ! www         4: # $Id: lontokacc.pm,v 1.5 2002/08/02 14:45:04 www Exp $
1.1       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: #
                     28: 
                     29: package Apache::lontokacc;
                     30: 
                     31: use strict;
1.4       www        32: use Apache::Constants qw(:common :remotehost);
1.1       www        33: use Apache::lonnet();
1.4       www        34: use Apache::File();
1.1       www        35: 
                     36: sub handler {
                     37:     my $r = shift;
1.4       www        38:     my $reqhost;
                     39:     unless ($reqhost=$r->get_remote_host(REMOTE_DOUBLE_REV)) {
1.5       www        40:        $r->log_reason("Spoof request ".$reqhost);
1.4       www        41:        return FORBIDDEN;
1.1       www        42:     }
1.6     ! www        43:     if ($reqhost eq 'localhost.localdomain') {
        !            44:        $r->register_cleanup(\&removefile);
        !            45:        return OK;
        !            46:     }
1.4       www        47:     my $readline;
                     48:     my $lontabdir=$r->dir_config('lonTabDir');
                     49:     {
                     50:        my $fh;
                     51:        unless ($fh=Apache::File->new("$lontabdir/hosts.tab")) {
                     52:           $r->log_reason("Could not find host tab file");
                     53:           return FORBIDDEN;
                     54:        }
                     55:        while ($readline=<$fh>) {
                     56:           my ($id,$domain,$role,$name,$ip)=split(/:/,$readline);
1.5       www        57:           if ($name =~ /$reqhost/i) {
                     58:              $r->register_cleanup(\&removefile); 
                     59:              return OK; 
                     60:           }
1.4       www        61:        }
                     62: 
                     63:     }
                     64:     $r->log_reason("Invalid request for user file transfer from $reqhost", 
                     65:                    $r->filename); 
1.1       www        66:     return FORBIDDEN;
                     67: }
                     68: 
1.5       www        69: sub removefile {
                     70:     my $r=shift;
1.6     ! www        71:     if ($r->status==200) {
        !            72:         unlink($r->filename);
1.5       www        73: 	&Apache::lonnet::logthis('Unlinking '.$r->filename);
                     74:     } else {
1.6     ! www        75:         &Apache::lonnet::logthis('Failed to transfer '.$r->filename);
1.5       www        76:     }
                     77: }
1.1       www        78: 1;
                     79: __END__
1.4       www        80: 
                     81: 
                     82: 
                     83: 
                     84: 
1.1       www        85: 
                     86: