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Annotation of loncom/auth/lontokacc.pm, revision 1.13

1.1       www         1: # The LearningOnline Network
1.4       www         2: # Access Handler for User File Transfers
1.1       www         3: #
1.13    ! albertel    4: # $Id: lontokacc.pm,v 1.12 2005/02/06 07:23:40 albertel 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();
1.13    ! albertel   35: use IO::Socket;
1.1       www        36: 
                     37: sub handler {
                     38:     my $r = shift;
1.12      albertel   39:     my $reqhost = $r->get_remote_host(REMOTE_NOLOOKUP);
                     40:     my $netaddr=inet_aton($reqhost);
                     41:     ($reqhost) = gethostbyaddr($netaddr,AF_INET);
                     42:     if (!$reqhost) {
                     43: 	$r->log_reason("Unable to do hostname $reqhost lookup for ".$r->get_remote_host(REMOTE_NOLOOKUP));
                     44: 	return FORBIDDEN;
                     45:     }
1.6       www        46:     if ($reqhost eq 'localhost.localdomain') {
                     47:        return OK;
                     48:     }
1.4       www        49:     my $readline;
                     50:     my $lontabdir=$r->dir_config('lonTabDir');
                     51:     {
                     52:        my $fh;
                     53:        unless ($fh=Apache::File->new("$lontabdir/hosts.tab")) {
                     54:           $r->log_reason("Could not find host tab file");
                     55:           return FORBIDDEN;
                     56:        }
                     57:        while ($readline=<$fh>) {
1.11      albertel   58: 	   $readline=~s/\s*$//;
                     59: 	   my ($id,$domain,$role,$name)=split(/:/,$readline);
                     60: 	   if ($name =~ /\Q$reqhost\E/i) {
                     61: 	       return OK; 
                     62: 	   }
1.4       www        63:        }
                     64: 
                     65:     }
                     66:     $r->log_reason("Invalid request for user file transfer from $reqhost", 
                     67:                    $r->filename); 
1.1       www        68:     return FORBIDDEN;
                     69: }
                     70: 
1.5       www        71: sub removefile {
                     72:     my $r=shift;
1.6       www        73:     if ($r->status==200) {
                     74:         unlink($r->filename);
1.10      albertel   75: 	#&Apache::lonnet::logthis('Unlinking '.$r->filename);
1.5       www        76:     } else {
1.6       www        77:         &Apache::lonnet::logthis('Failed to transfer '.$r->filename);
1.5       www        78:     }
                     79: }
1.1       www        80: 1;
                     81: __END__
1.4       www        82: 
                     83: 
                     84: 
                     85: 
                     86: 
1.1       www        87: 
                     88: