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Annotation of loncom/auth/lontokacc.pm, revision 1.7

1.1       www         1: # The LearningOnline Network
1.4       www         2: # Access Handler for User File Transfers
1.1       www         3: #
1.7     ! bowersj2    4: # $Id: lontokacc.pm,v 1.6 2002/08/08 13:45:21 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();
1.7     ! bowersj2   35: use Data::Dumper;
1.1       www        36: 
                     37: sub handler {
                     38:     my $r = shift;
1.7     ! bowersj2   39:     my $reqhost = $r->get_remote_host(REMOTE_DOUBLE_REV);
        !            40:     if (!$reqhost && $r->get_remote_host(REMOTE_NOLOOKUP) eq $r->get_server_name()) { 
        !            41:         $reqhost = $r->get_server_name(); 
        !            42:     }
        !            43:     unless ($reqhost) {
        !            44:         $r->log_reason("Spoof request from ". $reqhost);
        !            45:         return FORBIDDEN;
1.1       www        46:     }
1.6       www        47:     if ($reqhost eq 'localhost.localdomain') {
                     48:        $r->register_cleanup(\&removefile);
                     49:        return OK;
                     50:     }
1.4       www        51:     my $readline;
                     52:     my $lontabdir=$r->dir_config('lonTabDir');
                     53:     {
                     54:        my $fh;
                     55:        unless ($fh=Apache::File->new("$lontabdir/hosts.tab")) {
                     56:           $r->log_reason("Could not find host tab file");
                     57:           return FORBIDDEN;
                     58:        }
                     59:        while ($readline=<$fh>) {
                     60:           my ($id,$domain,$role,$name,$ip)=split(/:/,$readline);
1.5       www        61:           if ($name =~ /$reqhost/i) {
                     62:              $r->register_cleanup(\&removefile); 
                     63:              return OK; 
                     64:           }
1.4       www        65:        }
                     66: 
                     67:     }
                     68:     $r->log_reason("Invalid request for user file transfer from $reqhost", 
                     69:                    $r->filename); 
1.1       www        70:     return FORBIDDEN;
                     71: }
                     72: 
1.5       www        73: sub removefile {
                     74:     my $r=shift;
1.6       www        75:     if ($r->status==200) {
                     76:         unlink($r->filename);
1.5       www        77: 	&Apache::lonnet::logthis('Unlinking '.$r->filename);
                     78:     } else {
1.6       www        79:         &Apache::lonnet::logthis('Failed to transfer '.$r->filename);
1.5       www        80:     }
                     81: }
1.1       www        82: 1;
                     83: __END__
1.4       www        84: 
                     85: 
                     86: 
                     87: 
                     88: 
1.1       www        89: 
                     90: