[BACK]Return to lonretrieve.pm CVS log [TXT] [DIR] Up to [LON-CAPA] / loncom / publisher
File:  [LON-CAPA] / loncom / publisher / lonretrieve.pm
Revision 1.2: download - view: text, annotated - select for diffs
Tue Apr 3 18:12:57 2001 UTC (23 years, 1 month ago) by www
Branches: MAIN
CVS tags: HEAD
Lists previous versions, that's a start

# 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 phaseone {
    my ($r,$fn,$uname,$udom)=@_;
    my $docroot=$r->dir_config('lonDocRoot');

    my $resdir=$docroot.'/res/'.$udom.'/'.$uname.$fn;
    $resdir=~s/\/[^\/]+$/\//;

    $fn=~/^\/(.+)\.(\w+)$/;
    my $main=$1;
    my $suffix=$2;
    
    my $filename;
    opendir(DIR,$resdir);
    while ($filename=readdir(DIR)) {
        if ($filename=~/^$main\.(\d+)\.$suffix$/) {
           $r->print($resdir.' = '.$filename.'<br>');
        }
    }
    closedir(DIR);
}

sub handler {

  my $r=shift;

  my $fn;

  if ($ENV{'form.filename'}) {
      $fn=$ENV{'form.filename'};
      $fn=~s/^http\:\/\/[^\/]+\/\~(\w+)//;
  } else {
     $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.
         ' unspecified filename for retrieval', $r->filename); 
     return HTTP_NOT_FOUND;
  }

  unless ($fn) { 
     $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.
         ' trying to retrieve non-existing file', $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>');

  
  $r->print('<h1>Retrieve previous versions of <tt>'.$fn.'</tt></h1>');

  if ($ENV{'form.phase'} eq 'two') {
  } else {
      &phaseone($r,$fn,$uname,$udom);
  }

  $r->print('</body></html>');
  return OK;  
}
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>