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File:  [LON-CAPA] / loncom / auth / lontokacc.pm
Revision 1.9: download - view: text, annotated - select for diffs
Fri Aug 1 17:25:40 2003 UTC (20 years, 9 months ago) by www
Branches: MAIN
CVS tags: version_1_1_X, version_1_1_3, version_1_1_2, version_1_1_1, version_1_1_0, version_1_0_99_3, version_1_0_99_2, version_1_0_99_1, version_1_0_99, version_1_0_3, version_1_0_2, version_1_0_1, version_1_0_0, version_0_99_5, version_0_99_4, HEAD
Problem with lontokacc running twice on high school machines if cleanup
was registered dynamically.

    1: # The LearningOnline Network
    2: # Access Handler for User File Transfers
    3: #
    4: # $Id: lontokacc.pm,v 1.9 2003/08/01 17:25:40 www Exp $
    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;
   32: use Apache::Constants qw(:common :remotehost);
   33: use Apache::lonnet();
   34: use Apache::File();
   35: 
   36: 
   37: sub handler {
   38:     my $r = shift;
   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 ". $reqhost);
   45:         return FORBIDDEN;
   46:     }
   47:     if ($reqhost eq 'localhost.localdomain') {
   48:        return OK;
   49:     }
   50:     my $readline;
   51:     my $lontabdir=$r->dir_config('lonTabDir');
   52:     {
   53:        my $fh;
   54:        unless ($fh=Apache::File->new("$lontabdir/hosts.tab")) {
   55:           $r->log_reason("Could not find host tab file");
   56:           return FORBIDDEN;
   57:        }
   58:        while ($readline=<$fh>) {
   59:           my ($id,$domain,$role,$name,$ip)=split(/:/,$readline);
   60:           if ($name =~ /$reqhost/i) {
   61:              return OK; 
   62:           }
   63:        }
   64: 
   65:     }
   66:     $r->log_reason("Invalid request for user file transfer from $reqhost", 
   67:                    $r->filename); 
   68:     return FORBIDDEN;
   69: }
   70: 
   71: sub removefile {
   72:     my $r=shift;
   73:     if ($r->status==200) {
   74:         unlink($r->filename);
   75: 	&Apache::lonnet::logthis('Unlinking '.$r->filename);
   76:     } else {
   77:         &Apache::lonnet::logthis('Failed to transfer '.$r->filename);
   78:     }
   79: }
   80: 1;
   81: __END__
   82: 
   83: 
   84: 
   85: 
   86: 
   87: 
   88:
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