# The LearningOnline Network with CAPA
#
# Metadata display handler
#
# (TeX Content Handler
#
# 05/29/00,05/30,10/11 Gerd Kortemeyer)
#
# 10/19,10/21,10/23,11/27,08/09/01 Gerd Kortemeyer
package Apache::lonmeta;
use strict;
use Apache::Constants qw(:common);
use Apache::lonnet();
# ================================================================ Main Handler
sub handler {
my $r=shift;
my %content=();
# ----------------------------------------------------------- Set document type
$r->content_type('text/html');
$r->send_http_header;
return OK if $r->header_only;
# ------------------------------------------------------------------- Read file
my $uri=$r->uri;
map {
$content{$_}=&Apache::lonnet::metadata($uri,$_);
} split(/\,/,&Apache::lonnet::metadata($uri,'keys'));
# ------------------------------------------------------------------ Hide stuff
unless ($ENV{'user.adv'}) {
map {
$content{$_}='- not displayed -';
} ('keywords','notes','abstract','subject');
}
# --------------------------------------------------------------- Render Output
my $creationdate=localtime($content{'creationdate'});
my $lastrevisiondate=localtime($content{'lastrevisiondate'});
$r->print(<Catalog Information
Catalog Information
$content{'title'}
Author(s): $content{'author'}
Subject: $content{'subject'}
Keyword(s): $content{'keywords'}
Notes: $content{'notes'}
Abstract:
$content{'abstract'}
MIME Type: $content{'mime'}
Language: $content{'language'}
Creation Date: $creationdate
Last Revision Date: $lastrevisiondate
Publisher/Owner: $content{'owner'}
Copyright/Distribution: $content{'copyright'}
ENDHEAD
delete($content{'title'});
delete($content{'author'});
delete($content{'subject'});
delete($content{'keywords'});
delete($content{'notes'});
delete($content{'abstract'});
delete($content{'mime'});
delete($content{'language'});
delete($content{'creationdate'});
delete($content{'lastrevisiondate'});
delete($content{'owner'});
delete($content{'copyright'});
if ($ENV{'user.adv'}) {
map {
my $name=$_;
my $display=&Apache::lonnet::metadata($uri,$name.'.display');
unless ($display) { $display=$name; };
my $otherinfo='';
map {
if (defined(&Apache::lonnet::metadata($uri,$name.'.'.$_))) {
$otherinfo.=' '.$_.'='.
&Apache::lonnet::metadata($uri,$name.'.'.$_).'; ';
}
} ('name','part','type','default');
$r->print(''.$display.': '.$content{$name});
if ($otherinfo) {
$r->print(' ('.$otherinfo.')');
}
$r->print("
\n");
} sort keys %content;
}
$r->print('