# The LearningOnline Network with CAPA
# Wrapper for external and binary files as standalone resources
#
# $Id: lonwrapper.pm,v 1.41 2011/11/07 20:06:29 www Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# LON-CAPA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#
package Apache::lonwrapper;
use strict;
use Apache::Constants qw(:common);
use Apache::lonenc();
use Apache::lonnet;
# ================================================================ Main Handler
sub wrapper {
my $url = shift;
my $startpage = Apache::loncommon::start_page('Menu',undef,
{ 'force_register' =>1, 'bgcolor' => '#FFFFFF',}) ;
my $endpage = Apache::loncommon::end_page();
my $script = Apache::lonhtmlcommon::scripttag(<<SCRIPT );
\$(document).ready( function() {
\$(window).unbind('resize').resize(function(){
var header = \$('.LC_head_subbox')[0] ? \$('.LC_head_subbox')
: \$('#LC_breadcrumbs');
var pos = header.height() + header.position().top + 5;
\$('.LC_iframecontainer').css('top', pos);
});
});
window.onload = function(){ \$(window).trigger('resize') };
SCRIPT
# javascript will position the iframe if window was resized (or zoomed)
return <<ENDFRAME;
$startpage
$script
<div class="LC_iframecontainer">
<iframe src="$url">No iframe support!</iframe>
</div>
$endpage
ENDFRAME
}
sub handler {
my $r=shift;
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
return OK if $r->header_only;
my $url = $r->uri;
my $is_ext;
for ($url){
s|^/adm/wrapper||;
$is_ext = $_ =~ s|^/ext/|http://|;
s|http://https://|https://|;
s|:|:|g;
}
#
# Actual URL
#
if ($url=~/$LONCAPA::assess_re/) {
#
# This is uploaded homework
#
$env{'request.state'}='uploaded';
&Apache::lonhomework::renderpage($r,$url);
} else {
#
# This is not homework
#
if ($is_ext) {
$ENV{'QUERY_STRING'} =~ s/(^|\&)symb=[^\&]*/$1/;
$ENV{'QUERY_STRING'} =~ s/\&$//;
}
unless ($ENV{'QUERY_STRING'} eq '') {
$url.=(($url=~/\?/)?'&':'?').$ENV{'QUERY_STRING'};
}
# encrypt url if not external
&Apache::lonenc::check_encrypt(\$url) if $url !~ /^https?\:/ ;
$r->print( wrapper($url) );
} # not just the menu
return OK;
} # handler
1;
__END__
=pod
=head1 NAME
Apache::lonwrapper - External and binary file management.
=head1 SYNOPSIS
Wrapper for external and binary files as standalone resources. Edit handler for rat maps; TeX content handler.
This is part of the LearningOnline Network with CAPA project
described at http://www.lon-capa.org.
=head1 Subroutines
=over
=item wrapper($url)
Wraps $url in an iframe and generates a page for it.
Returns markup for the entire page.
=item handler()
=back
=cut
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