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File:  [LON-CAPA] / loncom / publisher / lonupload.pm
Revision 1.2: download - view: text, annotated - select for diffs
Tue Apr 10 01:57:28 2001 UTC (23 years, 1 month ago) by www
Branches: MAIN
CVS tags: HEAD
Upload file functionality

    1: # The LearningOnline Network with CAPA
    2: # Handler to upload files into construction space
    3: #
    4: # (Handler to retrieve an old version of a file
    5: #
    6: # (Publication Handler
    7: # 
    8: # (TeX Content Handler
    9: #
   10: # 05/29/00,05/30,10/11 Gerd Kortemeyer)
   11: #
   12: # 11/28,11/29,11/30,12/01,12/02,12/04,12/23 Gerd Kortemeyer
   13: # 03/23 Guy Albertelli
   14: # 03/24,03/29 Gerd Kortemeyer)
   15: #
   16: # 03/31,04/03 Gerd Kortemeyer)
   17: #
   18: # 04/05,04/09 Gerd Kortemeyer
   19: 
   20: package Apache::lonupload;
   21: 
   22: use strict;
   23: use Apache::File;
   24: use File::Copy;
   25: use Apache::Constants qw(:common :http :methods);
   26: 
   27: 
   28: sub upfile_store {
   29:     my $r=shift;
   30: 	
   31:     my $fname=$ENV{'form.upfile.filename'};
   32:     $fname=~s/\W//g;
   33:     
   34:     chop($ENV{'form.upfile'});
   35:   
   36:     my $datatoken=$ENV{'user.name'}.'_'.$ENV{'user.domain'}.
   37: 		  '_upload_'.$fname.'_'.time.'_'.$$;
   38:     {
   39:        my $fh=Apache::File->new('>'.$r->dir_config('lonDaemons').
   40:                                    '/tmp/'.$datatoken.'.tmp');
   41:        print $fh $ENV{'form.upfile'};
   42:     }
   43:     return $datatoken;
   44: }
   45: 
   46: 
   47: sub phaseone {
   48:     my ($r,$fn,$uname,$udom)=@_;
   49:     $fn=~s/\/[^\/]+$//;
   50:     $fn=~s/([^\/])$/$1\//;
   51:     $fn.=$ENV{'form.upfile.filename'};
   52:     $r->print(
   53:  '<form action=/adm/upload method=post>'.
   54:  '<input type=hidden name=phase value=two>'.
   55:  '<input type=hidden name=datatoken value="'.&upfile_store.'">'.
   56:  'Store uploaded file as '.
   57:  '<input type=text size=50 name=filename value="'.$fn.'"><br>'.
   58:  '<input type=submit value="Store"></form>');
   59: }
   60: 
   61: sub phasetwo {
   62:     my ($r,$fn,$uname,$udom)=@_;
   63:     my $target='/home/'.$uname.'/public_html'.$fn;
   64:     my $datatoken=$ENV{'form.datatoken'};
   65:     if (($fn) && ($datatoken)) {
   66: 	if ((-e $target) && ($ENV{'form.override'} ne 'Yes')) {
   67:            $r->print(
   68:  '<form action=/adm/upload method=post>'.
   69:  'File <tt>'.$fn.'</tt> exists. Overwrite? '.
   70:  '<input type=hidden name=phase value=two>'.
   71:  '<input type=hidden name=filename value="'.$fn.'">'.
   72:  '<input type=hidden name=datatoken value="'.$datatoken.'">'.
   73:  '<input type=submit name=override value="Yes"></form>');
   74:        } else {
   75:            my $source=$r->dir_config('lonDaemons').
   76: 	                             '/tmp/'.$datatoken.'.tmp';
   77:            if (copy($source,$target)) {
   78: 	      $r->print('File copied.');
   79:               $r->print('<p><font size=+2><a href="/priv/'.$uname.$fn.
   80:                         '">View file</a></font>');
   81: 	   } else {
   82:               $r->print('Failed to copy: '.$!);
   83: 	   }
   84:        }
   85:     } else {
   86:        $r->print(
   87:    '<font size=+1 color=red>Please pick a filename</font><p>');
   88:        &phaseone($r,$fn,$uname,$udom);
   89:     }
   90: }
   91: 
   92: sub handler {
   93: 
   94:   my $r=shift;
   95: 
   96:   my $fn;
   97: 
   98:   if ($ENV{'form.filename'}) {
   99:       $fn=$ENV{'form.filename'};
  100:       $fn=~s/^http\:\/\/[^\/]+\/\~(\w+)//;
  101:   } else {
  102:      $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.
  103:          ' unspecified filename for upload', $r->filename); 
  104:      return HTTP_NOT_FOUND;
  105:   }
  106: 
  107: # ----------------------------------------------------------- Start page output
  108: 
  109:   my $uname=$ENV{'user.name'};
  110:   my $udom=$ENV{'user.domain'};
  111: 
  112:   $r->content_type('text/html');
  113:   $r->send_http_header;
  114: 
  115:   $r->print('<html><head><title>LON-CAPA Construction Space</title></head>');
  116: 
  117:   $r->print(
  118:    '<body bgcolor="#FFFFFF"><img align=right src=/adm/lonIcons/lonlogos.gif>');
  119: 
  120:   
  121:   $r->print('<h1>Upload file to Construction Space</h1>');
  122: 
  123:   if ($ENV{'form.phase'} eq 'two') {
  124:       &phasetwo($r,$fn,$uname,$udom);
  125:   } else {
  126:       &phaseone($r,$fn,$uname,$udom);
  127:   }
  128: 
  129:   $r->print('</body></html>');
  130:   return OK;  
  131: }
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