# The LearningOnline Network
# Access Handler for User File Transfers
#
# $Id: lontokacc.pm,v 1.18 2007/03/02 23:43:29 albertel Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# LON-CAPA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#
package Apache::lontokacc;
use strict;
use Apache::Constants qw(:common :remotehost);
use Apache::lonnet();
use Apache::File();
use IO::Socket;
sub handler {
my $r = shift;
my $reqhost = $r->get_remote_host(REMOTE_NOLOOKUP);
my @hostids= &Apache::lonnet::get_hosts_from_ip($reqhost);
if (!@hostids && $reqhost ne '127.0.0.1' ) {
$r->log_reason("Unable to find a host for ".
$r->get_remote_host(REMOTE_NOLOOKUP));
return FORBIDDEN;
}
if ($reqhost eq '127.0.0.1') {
return OK;
}
my $readline;
my $lontabdir=$r->dir_config('lonTabDir');
{
my $fh;
unless ($fh=Apache::File->new("$lontabdir/hosts.tab")) {
$r->log_reason("Could not find host tab file");
return FORBIDDEN;
}
while ($readline=<$fh>) {
$readline=~s/\s*$//;
my ($id,$domain,$role,$name)=split(/:/,$readline);
foreach my $hostid (@hostids) {
my $hostname=&Apache::lonnet::hostname($hostid);
if ($name =~ /^\Q$hostname\E$/i) {
return OK;
}
}
}
}
$r->log_reason("Invalid request for user file transfer from $reqhost (".join(",",@hostids).")",
$r->filename);
return FORBIDDEN;
}
sub removefile {
my $r=shift;
if ($r->status==200) {
unlink($r->filename);
#&Apache::lonnet::logthis('Unlinking '.$r->filename);
} else {
&Apache::lonnet::logthis('Failed to transfer '.$r->filename);
}
return OK;
}
1;
__END__
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