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File:  [LON-CAPA] / loncom / lonnet / perl / londns.pm
Revision 1.4: download - view: text, annotated - select for diffs
Thu Nov 30 14:33:35 2017 UTC (6 years, 7 months ago) by raeburn
Branches: MAIN
CVS tags: version_2_11_X, version_2_11_5, version_2_11_4_uiuc, version_2_11_4_msu, version_2_11_4, version_2_11_3_uiuc, version_2_11_3_msu, version_2_11_3, version_2_11_2_msu, HEAD
- Use three-argument open() to separate file mode from the filename.

    1: # The LearningOnline Network with CAPA
    2: # A debugging harness.
    3: #
    4: # $Id: londns.pm,v 1.4 2017/11/30 14:33:35 raeburn 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: 
   30: package Apache::londns;
   31: 
   32: use strict;
   33: use LONCAPA;
   34: use Apache::Constants qw(:common :http);
   35: use Apache::lonnet;
   36: 
   37: sub serve_file {
   38:     my ($r,$file,$type)=@_;
   39:     if (open(my $config,"<","$Apache::lonnet::perlvar{'lonTabDir'}/$file")) {
   40:         my $contents = join('',<$config>);
   41:         $r->content_type($type);
   42:         $r->send_http_header;
   43:         return OK if $r->header_only;
   44:         $r->print($contents);
   45:         return OK;
   46:     } else {
   47:         return FORBIDDEN;
   48:     }
   49: }
   50: 
   51: sub handler {
   52:     my ($r) = @_;
   53: 
   54:     my $command = (split('/',$r->uri))[3];
   55:     if ($command eq 'hosts') {
   56: 	return &serve_file($r,'dns_hosts.tab','loncapa/hosts');
   57:     } elsif ($command eq 'domain') {
   58: 	return &serve_file($r,'dns_domain.tab','loncapa/domain');
   59:     } elsif ($command eq 'checksums') {
   60:         my $version = (split('/',$r->uri))[4];
   61:         return &serve_file($r,"dns_checksums/$version.tab",'loncapa/versions');
   62:     }
   63:     return FORBIDDEN;
   64: }
   65: 
   66: 
   67: 1;
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