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    1: # The LearningOnline Network with CAPA
    2: # Server for RAT Maps
    3: #
    4: # $Id: lonratsrv.pm,v 1.41 2008/11/20 15:19:05 jms 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::lonratsrv;
   31: 
   32: use strict;
   33: use Apache::Constants qw(:common);
   34: use LONCAPA();
   35: use LONCAPA::map();
   36: 
   37: 
   38: # ================================================================ Main Handler
   39: 
   40: sub handler {
   41:   my $r=shift;
   42:   &Apache::loncommon::content_type($r,'text/html');
   43:   $r->send_http_header;
   44: 
   45:   return OK if $r->header_only;
   46: 
   47:   my $url=$r->uri;
   48:   $url=~m{/(\w+)/ratserver$};
   49:   my $mode=$1;
   50: 
   51:   $url=~s{/loadonly/ratserver$}{/save/ratserver};
   52:   
   53:   my $fn=$r->filename;
   54:   my $lonDocRoot=$r->dir_config('lonDocRoot');
   55:   if ( $fn =~ /\Q$lonDocRoot\E/ ) {
   56:       #internal authentication, needs fixup.
   57:       $fn = $url;
   58:       $fn=~s{^/~($LONCAPA::username_re)}{/home/$1/public_html};
   59:       $fn=~s{/[^/]*/ratserver$}{};
   60:   }
   61:   my $errtext='';
   62:   my $infotext='';
   63:   my $outtext='';
   64: 
   65:   if ($mode ne 'loadonly') {
   66:      ($errtext,$infotext)=&LONCAPA::map::savemap($fn,$errtext);
   67:   }
   68:   ($outtext,$errtext,$infotext)=&LONCAPA::map::loadmap($fn,$errtext,$infotext);
   69: 
   70:   my $start_page =
   71:       &Apache::loncommon::start_page('Alert',undef,
   72: 				     {'only_body' => 1,
   73: 				      'bgcolor'   => '#FFFFFF',});
   74:   my $end_page =
   75:       &Apache::loncommon::end_page();
   76: 
   77:   $r->print(<<ENDDOCUMENT);
   78: $start_page
   79: <form name="storage" method="post" action="$url">
   80: <input type="hidden" name="output" value="$outtext" />
   81: </form>
   82: <script type ="text/javascript">
   83:     parent.flag=1;
   84: </script>
   85: ENDDOCUMENT
   86:     if (($errtext ne '') || ($infotext ne '')) {
   87: 	$r->print(<<ENDSCRIPT);
   88: <script type="text/javascript">
   89:     alert("$infotext $errtext");
   90: </script>
   91: ENDSCRIPT
   92:     }
   93:     $r->print($end_page);
   94: 
   95:   return OK;
   96: }
   97: 
   98: 1;
   99: __END__
  100: 
  101: 
  102: =head1 NAME
  103: 
  104: Apache::lonratsrv
  105: 
  106: =head1 SYNOPSIS
  107: 
  108: Handler that takes output from RAT and stores
  109: it on disk. Handles the upper hidden frame of
  110: the added window that comes up in RAT. (3
  111: frames come up in RAT server, code, and
  112: output. This module handles server
  113: connection.)
  114: 
  115: This is part of the LearningOnline Network with CAPA project
  116: described at http://www.lon-capa.org.
  117: 
  118: =cut