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File:  [LON-CAPA] / loncom / publisher / lonretrieve.pm
Revision 1.1: download - view: text, annotated - select for diffs
Sun Apr 1 02:58:51 2001 UTC (23 years, 1 month ago) by www
Branches: MAIN
CVS tags: HEAD
New handlers to retrieve old versions of files and list construction space

# The LearningOnline Network with CAPA
# Handler to retrieve an old version of a file
#
# (Publication Handler
# 
# (TeX Content Handler
#
# 05/29/00,05/30,10/11 Gerd Kortemeyer)
#
# 11/28,11/29,11/30,12/01,12/02,12/04,12/23 Gerd Kortemeyer
# 03/23 Guy Albertelli
# 03/24,03/29 Gerd Kortemeyer)
#
# 03/31 Gerd Kortemeyer

package Apache::lonretrieve;

use strict;
use Apache::File;
use File::Copy;
use Apache::Constants qw(:common :http :methods);


sub handler {

  my $r=shift;

  my $fn;

  if ($ENV{'form.filename'}) {
      $fn=$ENV{'form.filename'};
      $fn=~s/^http\:\/\/[^\/]+\/\~(\w+)/\/home\/$1\/public_html/;
      $fn=~s/\/[^\/]+$//;
  } else {
      $fn=$r->filename();
  }
     

  unless ($fn) { 
     $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.
         ' trying to publish empty directory', $r->filename); 
     return HTTP_NOT_FOUND;
  } 

# ----------------------------------------------------------- Start page output

  my $uname=$ENV{'user.name'};
  my $udom=$ENV{'user.domain'};

  $r->content_type('text/html');
  $r->send_http_header;

  $r->print('<html><head><title>LON-CAPA Construction Space</title></head>');

  $r->print(
   '<body bgcolor="#FFFFFF"><img align=right src=/adm/lonIcons/lonlogos.gif>');

  my $thisdisfn=$fn;
  $thisdisfn=~s/^\/home\/$uname\/public_html//;
  
  $r->print('<h1>Construction Space Directory <tt>'.$thisdisfn.'</tt></h1>');

  my $docroot=$r->dir_config('lonDocRoot');

  my $resdir=$docroot.'/res/'.$udom.'/'.$uname.$thisdisfn;
  my $linkdir='/~'.$uname.$thisdisfn;

    my $filename;
    opendir(DIR,$fn);
       while ($filename=readdir(DIR)) {
           $filename=~/\.(\w+)$/;
           if (($1 ne 'meta') && ($1 ne 'save') && ($1 ne 'log')) {
	      $r->print($resdir.' - '.$linkdir.' = '.$filename.'<br>');
	   }
       }
    closedir(DIR);


  $r->print('</body></html>');
  return OK;  
}
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