# The LearningOnline Network with CAPA
# A debugging harness.
#
# $Id: londns.pm,v 1.5 2018/07/18 13:45:03 raeburn 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::londns;
use strict;
use LONCAPA;
use Apache::Constants qw(:common :http);
use Apache::lonnet;
sub serve_file {
my ($r,$dir,$file,$type)=@_;
if (($dir eq '') || ($file eq '')) {
return FORBIDDEN;
}
if (open(my $config,"<","$dir/$file")) {
my $contents = join('',<$config>);
$r->content_type($type);
$r->send_http_header;
return OK if $r->header_only;
$r->print($contents);
return OK;
} else {
return FORBIDDEN;
}
}
sub handler {
my ($r) = @_;
my $command = (split('/',$r->uri))[3];
my $dir = $Apache::lonnet::perlvar{'lonTabDir'};
if ($command eq 'hosts') {
return &serve_file($r,$dir,'dns_hosts.tab','loncapa/hosts');
} elsif ($command eq 'domain') {
return &serve_file($r,$dir,'dns_domain.tab','loncapa/domain');
} elsif ($command eq 'checksums') {
my $version = (split('/',$r->uri))[4];
return &serve_file($r,$dir,"dns_checksums/$version.tab",'loncapa/versions');
} elsif ($command eq 'loncapaCRL') {
$dir = $Apache::lonnet::perlvar{'lonCertificateDirectory'};
return &serve_file($r,$dir,$Apache::lonnet::perlvar{'lonnetCertRevocationList'},
'application/x-pem-file');
}
return FORBIDDEN;
}
1;
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