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File:  [LON-CAPA] / loncom / interface / lonmeta.pm
Revision 1.6: download - view: text, annotated - select for diffs
Fri Aug 10 17:16:06 2001 UTC (22 years, 9 months ago) by albertel
Branches: MAIN
CVS tags: HEAD
- hide stuff from students

    1: # The LearningOnline Network with CAPA
    2: #
    3: # Metadata display handler
    4: #
    5: # (TeX Content Handler
    6: #
    7: # 05/29/00,05/30,10/11 Gerd Kortemeyer)
    8: #
    9: # 10/19,10/21,10/23,11/27 Gerd Kortemeyer
   10: 
   11: package Apache::lonmeta;
   12: 
   13: use strict;
   14: use Apache::Constants qw(:common);
   15: use Apache::lonnet();
   16: 
   17: 
   18: # ================================================================ Main Handler
   19: 
   20: sub handler {
   21:   my $r=shift;
   22:   my %content=();
   23: 
   24: # ----------------------------------------------------------- Set document type
   25: 
   26:   $r->content_type('text/html');
   27:   $r->send_http_header;
   28: 
   29:   return OK if $r->header_only;
   30: 
   31: # ------------------------------------------------------------------- Read file
   32: 
   33:   my $uri=$r->uri;
   34:   map {
   35:       $content{$_}=&Apache::lonnet::metadata($uri,$_);
   36:   } split(/\,/,&Apache::lonnet::metadata($uri,'keys'));
   37: 
   38: # ------------------------------------------------------------------ Hide stuff
   39:   if (!$ENV{'user.adv'}) {
   40:     map {
   41:       $content{$_}='<i>- not displayed -</i>';
   42:     } ('keywords','notes','abstract','subject');
   43:   }
   44: 
   45: # --------------------------------------------------------------- Render Output
   46: 
   47: my $creationdate=localtime($content{'creationdate'});
   48: my $lastrevisiondate=localtime($content{'lastrevisiondate'});
   49:   
   50:   $r->print(<<ENDHEAD);
   51: <html><head><title>Catalog Information</title></head>
   52: <body bgcolor="#FFFFFF">
   53: <h1>Catalog Information</h1>
   54: <h2>$content{'title'}</h2>
   55: <h3>Author(s): $content{'author'}</h3>
   56: <b>Subject:</b> $content{'subject'}<br>
   57: <b>Keyword(s):</b> $content{'keywords'}<br>
   58: <b>Notes:</b> $content{'notes'}<br>
   59: <b>Abstract:</b>
   60: <blockquote>$content{'abstract'}</blockquote>
   61: <hr>
   62: <b>MIME Type:</b> $content{'mime'}<br>
   63: <b>Language:</b> $content{'language'}<br>
   64: <b>Creation Date:</b> $creationdate<br>
   65: <b>Last Revision Date:</b> $lastrevisiondate<br>
   66: <b>Publisher/Owner:</b> $content{'owner'}<br>
   67: <b>Copyright/Distribution:</b> $content{'copyright'}
   68: <hr>
   69: ENDHEAD
   70:   delete($content{'title'});
   71:   delete($content{'author'});
   72:   delete($content{'subject'});
   73:   delete($content{'keywords'});
   74:   delete($content{'notes'});
   75:   delete($content{'abstract'});
   76:   delete($content{'mime'});
   77:   delete($content{'language'});
   78:   delete($content{'creationdate'});
   79:   delete($content{'lastrevisiondate'});
   80:   delete($content{'owner'});
   81:   delete($content{'copyright'});
   82:   map {
   83:       my $name=$_;
   84:       my $display=&Apache::lonnet::metadata($uri,$name.'.display');
   85:       unless ($display) { $display=$name; };
   86:       my $otherinfo='';
   87:       map {
   88:           if (defined(&Apache::lonnet::metadata($uri,$name.'.'.$_))) {
   89:              $otherinfo.=' '.$_.'='.
   90: 		 &Apache::lonnet::metadata($uri,$name.'.'.$_).'; ';
   91:           }
   92:       } ('name','part','type','default'); 
   93:       $r->print('<b>'.$display.':</b> '.$content{$name});
   94:       if ($otherinfo) {
   95:          $r->print(' ('.$otherinfo.')');
   96:       }
   97:       $r->print("<br>\n");
   98:   } sort keys %content;
   99:   $r->print('</body></html>');
  100:   return OK;
  101: }
  102: 
  103: 1;
  104: __END__
  105: 
  106: 
  107: 
  108: 
  109: 
  110: 
  111:
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