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File:  [LON-CAPA] / loncom / publisher / lonupload.pm
Revision 1.5: download - view: text, annotated - select for diffs
Sat Jun 23 18:26:40 2001 UTC (22 years, 10 months ago) by www
Branches: MAIN
CVS tags: HEAD
More actions in construction space

# The LearningOnline Network with CAPA
# Handler to upload files into construction space
#
# (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)
#
# 03/31,04/03 Gerd Kortemeyer)
#
# 04/05,04/09,05/25,06/23 Gerd Kortemeyer

package Apache::lonupload;

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

sub upfile_store {
    my $r=shift;
	
    my $fname=$ENV{'form.upfile.filename'};
    $fname=~s/\W//g;
    
    chop($ENV{'form.upfile'});
  
    my $datatoken=$ENV{'user.name'}.'_'.$ENV{'user.domain'}.
		  '_upload_'.$fname.'_'.time.'_'.$$;
    {
       my $fh=Apache::File->new('>'.$r->dir_config('lonDaemons').
                                   '/tmp/'.$datatoken.'.tmp');
       print $fh $ENV{'form.upfile'};
    }
    return $datatoken;
}


sub phaseone {
   my ($r,$fn,$uname,$udom)=@_;
   if ($ENV{'form.upfile.filename'}) {
    $fn=~s/\/[^\/]+$//;
    $fn=~s/([^\/])$/$1\//;
    $fn.=$ENV{'form.upfile.filename'};
    $fn=~s/^\///;
    $fn=~s/(\/)+/\//g;
    if (($fn) && ($fn!~/\/$/)) {
      $r->print(
 '<form action=/adm/upload method=post>'.
 '<input type=hidden name=phase value=two>'.
 '<input type=hidden name=datatoken value="'.&upfile_store.'">'.
 'Store uploaded file as '.
 '<input type=text size=50 name=filename value="/priv/'.
  $uname.'/'.$fn.'"><br>'.
 '<input type=submit value="Store"></form>');
  } else {
      $r->print('<font color=red>Illegal filename.</font>');
  }
 } else {
     $r->print('<font color=red>No upload file specified.</font>');
 }
}

sub phasetwo {
   my ($r,$fn,$uname,$udom)=@_;
   if ($fn=~/^\/priv\/$uname\//) { 
    my $tfn=$fn;
    $tfn=~s/^\/(\~|priv)\/(\w+)//;
    my $target='/home/'.$uname.'/public_html'.$tfn;
    my $datatoken=$ENV{'form.datatoken'};
    if (($fn) && ($datatoken)) {
	if ((-e $target) && ($ENV{'form.override'} ne 'Yes')) {
           $r->print(
 '<form action=/adm/upload method=post>'.
 'File <tt>'.$fn.'</tt> exists. Overwrite? '.
 '<input type=hidden name=phase value=two>'.
 '<input type=hidden name=filename value="'.$fn.'">'.
 '<input type=hidden name=datatoken value="'.$datatoken.'">'.
 '<input type=submit name=override value="Yes"></form>');
       } else {
           my $source=$r->dir_config('lonDaemons').
	                             '/tmp/'.$datatoken.'.tmp';
           if (copy($source,$target)) {
	      $r->print('File copied.');
              $r->print('<p><font size=+2><a href="'.$fn.
                        '">View file</a></font>');
	   } else {
              $r->print('Failed to copy: '.$!);
	   }
       }
    } else {
       $r->print(
   '<font size=+1 color=red>Please pick a filename</font><p>');
       &phaseone($r,$fn,$uname,$udom);
    }
  } else {
    $r->print(
   '<font size=+1 color=red>Please pick a filename</font><p>');
    &phaseone($r,$fn,$uname,$udom);
  }
}

sub handler {

  my $r=shift;

  my $uname;
  my $udom;

  ($uname,$udom)=
    &Apache::loncacc::constructaccess(
			 $ENV{'form.filename'},$r->dir_config('lonDefDomain'));
  unless (($uname) && ($udom)) {
     $r->log_reason($uname.' at '.$udom.
         ' trying to publish file '.$ENV{'form.filename'}.
         ' - not authorized', 
         $r->filename); 
     return HTTP_NOT_ACCEPTABLE;
  }

  my $fn;

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

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


  $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>Upload file to Construction Space</h1>');
  
  if (($uname ne $ENV{'user.name'}) || ($udom ne $ENV{'user.domain'})) {
          $r->print('<h3><font color=red>Co-Author: '.$uname.' at '.$udom.
               '</font></h3>');
  }


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

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