version 1.3, 2001/07/05 18:14:17
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version 1.63, 2017/05/10 13:49:21
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# The LearningOnline Network with CAPA |
# The LearningOnline Network with CAPA |
# Wrapper for external and binary files as standalone resources |
# Wrapper for external and binary files as standalone resources |
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# (Edit Handler for RAT Maps |
# $Id$ |
# (TeX Content Handler |
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# |
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# 05/29/00,05/30 Gerd Kortemeyer) |
# Copyright Michigan State University Board of Trustees |
# 7/1,6/30 Gerd Kortemeyer) |
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# |
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# 7/5 Gerd Kortemeyer |
# This file is part of the LearningOnline Network with CAPA (LON-CAPA). |
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# |
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# LON-CAPA is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# LON-CAPA is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with LON-CAPA; if not, write to the Free Software |
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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# |
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# /home/httpd/html/adm/gpl.txt |
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# |
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# http://www.lon-capa.org/ |
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# |
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package Apache::lonwrapper; |
package Apache::lonwrapper; |
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use strict; |
use strict; |
use Apache::Constants qw(:common); |
use Apache::Constants qw(:common); |
use Apache::lonnet(); |
use Apache::lonenc(); |
use Apache::lonxml(); |
use Apache::lonnet; |
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use Apache::lonlocal; |
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use Apache::loncommon(); |
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use Apache::lonhtmlcommon(); |
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use Apache::lonextresedit(); |
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use Apache::lonexttool(); |
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use LONCAPA qw(:DEFAULT :match);; |
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# ================================================================ Main Handler |
# ================================================================ Main Handler |
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sub wrapper { |
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my ($url,$brcrum,$absolute,$is_ext,$is_pdf,$exttool,$linktext,$explanation, |
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$title,$width,$height) = @_; |
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my $forcereg; |
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unless ($env{'form.folderpath'}) { |
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$forcereg = 1; |
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} |
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my %lt = &Apache::lonlocal::texthash( |
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'noif' => 'No iframe support.', |
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'show' => 'Show content in pop-up window', |
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); |
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my $anchor; |
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if ($is_ext) { |
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if ($env{'form.symb'}) { |
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(undef,undef,my $res) = &Apache::lonnet::decode_symb($env{'form.symb'}); |
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if ($res =~ /(#[^#]+)$/) { |
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$anchor = $1; |
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} |
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} elsif ($env{'form.anchor'} ne '') { |
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$anchor = '#'.$env{'form.anchor'}; |
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} |
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} |
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my $noiframe = &Apache::loncommon::modal_link($url.$anchor,$lt{'show'},500,400); |
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my $args = {'bgcolor' => '#FFFFFF'}; |
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if ($forcereg) { |
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$args->{'force_register'} = $forcereg; |
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} |
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if (ref($brcrum) eq 'ARRAY') { |
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$args->{'bread_crumbs'} = $brcrum; |
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} |
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if ($absolute) { |
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$args->{'use_absolute'} = $absolute; |
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} |
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if ($env{'form.only_body'}) { |
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$args->{'only_body'} = $env{'form.only_body'}; |
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} |
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my $startpage = &Apache::loncommon::start_page('Menu',undef,$args); |
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my $endpage = &Apache::loncommon::end_page(); |
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if (($env{'browser.mobile'}) || ($exttool eq 'window') || ($exttool eq 'tab')) { |
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my $output = $startpage; |
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if ($is_pdf) { |
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if ($title eq '') { |
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$title = $env{'form.title'}; |
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if ($title eq '') { |
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unless ($env{'request.enc'}) { |
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($title) = ($url =~ m{/([^/]+)$}); |
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$title =~ s/(\?[^\?]+)$//; |
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} |
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} |
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} |
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unless ($title eq '') { |
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$output .= $title.'<br />'; |
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} |
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$output .= '<a href="'.$url.'">'.&mt('Link to PDF (for mobile devices)').'</a>'; |
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} elsif (($exttool eq 'window') || ($exttool eq 'tab')) { |
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if ($linktext eq '') { |
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$linktext = &mt('Launch External Tool'); |
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} |
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if ($exttool eq 'tab') { |
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$output .= '<div>'. |
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'<a href="'.$url.'" target="LCExternalToolTab" style="padding:0;clear:both;margin:0;border:0">'. |
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$linktext.'</a>'. |
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'</div>'; |
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} else { |
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$output .= <<"ENDLINK"; |
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<script type="text/javascript"> |
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var windowObjectReference = null; |
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var PreviousUrl; |
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function openSinglePopup(strUrl) { |
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if (windowObjectReference == null || windowObjectReference.closed) { |
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windowObjectReference = window.open(strUrl, "LCExternalToolPopUp", |
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"height=$height,width=$width,scrollbars=yes,resizable=yes,status=yes,menubar=no,location=no'"); |
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} else if(PreviousUrl != strUrl) { |
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windowObjectReference = window.open(strUrl, "LCExternalToolPopUp", |
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"height=$height,width=$width,scrollbars=yes,resizable=yes,status=yes,menubar=no,location=no'"); |
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windowObjectReference.focus(); |
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} else { |
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windowObjectReference.focus(); |
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}; |
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PreviousUrl = strUrl; |
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} |
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</script> |
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<div> |
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<a href="$url" target="LCExternalToolPopUp" onclick="openSinglePopup(this.href); return false;"> |
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$linktext</a> |
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</div> |
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ENDLINK |
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} |
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if ($explanation ne '') { |
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$output .= '<div>'.$explanation.'</div>'; |
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} |
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} else { |
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$output .= '<div style="overflow:scroll; -webkit-overflow-scrolling:touch;">'."\n". |
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'<iframe src="'.$url.$anchor.'" height="100%" width="100%" frameborder="0">'."\n". |
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"$lt{'noif'} $noiframe\n". |
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"</iframe>\n". |
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"</div>\n"; |
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} |
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$output .= $endpage; |
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return $output; |
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} else { |
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my $offset = 5; |
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&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['inhibitmenu']); |
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if ($env{'form.inhibitmenu'} eq 'yes') { |
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$offset = 0; |
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} |
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my $script = &Apache::lonhtmlcommon::scripttag(<<SCRIPT); |
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\$(document).ready( function() { |
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\$(window).unbind('resize').resize(function(){ |
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var header = null; |
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var offset = $offset; |
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var height = 0; |
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var hdrtop = 0; |
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if (\$('div.LC_head_subbox:first').length) { |
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header = \$('div.LC_head_subbox:first'); |
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offset = 9; |
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} else { |
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if (\$('#LC_breadcrumbs').length) { |
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header = \$('#LC_breadcrumbs'); |
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} |
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} |
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if (header != null && header.length) { |
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height = header.height(); |
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hdrtop = header.position().top; |
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} |
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var pos = height + hdrtop + offset; |
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\$('.LC_iframecontainer').css('top', pos); |
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}); |
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}); |
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window.onload = function(){ \$(window).trigger('resize') }; |
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SCRIPT |
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# javascript will position the iframe if window was resized (or zoomed) |
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return <<ENDFRAME; |
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$startpage |
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$script |
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<div class="LC_iframecontainer"> |
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<iframe src="$url$anchor">$lt{'noif'} $noiframe</iframe> |
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</div> |
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$endpage |
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ENDFRAME |
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} |
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} |
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sub handler { |
sub handler { |
my $r=shift; |
my $r=shift; |
$r->content_type('text/html'); |
&Apache::loncommon::content_type($r,'text/html'); |
$r->send_http_header; |
$r->send_http_header; |
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return OK if $r->header_only; |
return OK if $r->header_only; |
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my $url=$r->uri; |
my $url = $r->uri; |
$url=~s/^\/adm\/wrapper//; |
my ($is_ext,$brcrum,$absolute,$is_pdf,$exttool,$cdom,$cnum,$hostname, |
$url=~s/^\/ext\//http\:\/\//; |
$linktext,$explanation,$width,$height); |
my $events='onLoad="'.&Apache::lonxml::loadevents. |
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'" onUnload="'.&Apache::lonxml::unloadevents.'"'; |
for ($url){ |
my $script=&Apache::lonxml::registerurl(1); |
s|^/adm/wrapper||; |
$r->print(<<ENDDOCUMENT); |
$is_ext = $_ =~ s|^/ext/|http://|; |
<html> |
s|http://https://|https://|; |
<head> |
s|:|:|g; |
$script |
} |
</head> |
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<frameset rows="1,*" border=0 $events> |
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<frame src="/adm/rat/empty.html"> |
if ($url =~ /\.pdf$/i) { |
<frame src="$url"> |
$is_pdf = 1; |
</frameset> |
} elsif ($url =~ m{^/adm/($match_domain)/($match_courseid)/(\d+)/ext\.tool$}) { |
</html> |
$cdom = $1; |
ENDDOCUMENT |
$cnum = $2; |
return OK; |
my $marker = $3; |
} |
$exttool = 'iframe'; |
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my $exttoolremote; |
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my %toolhash = &Apache::lonnet::get('exttool_'.$marker,['target','linktext','explanation','id','width','height'], |
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$cdom,$cnum); |
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if ($toolhash{'id'}) { |
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my %ltitools = &Apache::lonnet::get_domain_ltitools($cdom); |
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if (ref($ltitools{$toolhash{'id'}}) eq 'HASH') { |
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$exttoolremote = $ltitools{$toolhash{'id'}}{'url'}; |
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} |
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} |
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if ($toolhash{'target'} eq 'window') { |
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$exttool = 'window'; |
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$width = $toolhash{'width'}; |
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$height = $toolhash{'height'}; |
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} elsif ($toolhash{'target'} eq 'tab') { |
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$exttool = 'tab'; |
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} |
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if (($exttool eq 'window') || ($exttool eq 'tab')) { |
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$linktext = $toolhash{'linktext'}; |
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$explanation = $toolhash{'explanation'}; |
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} elsif (($exttoolremote =~ /^http:/) && ($ENV{'SERVER_PORT'} == 443)) { |
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$exttool = 'tab'; |
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} |
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} |
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if (($is_ext) || ($exttool)) { |
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&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, |
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['forceedit','register','folderpath','symb','idx','title','anchor']); |
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if (($env{'form.forceedit'}) && |
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(&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) && |
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(($env{'form.folderpath'} =~ /^supplemental/) || |
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($env{'form.symb'} =~ /^uploaded/))) { |
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if ($env{'form.symb'}) { |
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(undef,undef,my $res) = &Apache::lonnet::decode_symb($env{'form.symb'}); |
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if ($res =~ /(#[^#]+)$/) { |
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$url .= $1; |
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} |
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} elsif ($env{'form.folderpath'} =~ /^supplemental/) { |
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if ($env{'form.anchor'} ne '') { |
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$url .= '#'.$env{'form.anchor'}; |
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} |
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} |
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my $type = 'ext'; |
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if ($exttool) { |
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$type = 'tool'; |
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} elsif (($url =~ /^http:/) && ($ENV{'SERVER_PORT'} == 443)) { |
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$hostname = $r->hostname(); |
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} |
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$r->print( |
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&Apache::lonextresedit::display_editor($url,$env{'form.folderpath'}, |
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$env{'form.symb'}, |
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$env{'form.idx'},$type,$cdom, |
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$cnum,$hostname)); |
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return OK; |
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} elsif ($env{'form.folderpath'} =~ /^supplemental/) { |
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my $crstype = &Apache::loncommon::course_type(); |
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my $title = $env{'form.title'}; |
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if ($title eq '') { |
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if ($is_ext) { |
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$title = &mt('External Resource'); |
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} else { |
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$title = &mt('External Tool'); |
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} |
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} |
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$brcrum = |
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&Apache::lonhtmlcommon::docs_breadcrumbs(undef,$crstype,undef,$title,1); |
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} |
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} |
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# |
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# Actual URL |
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# |
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if (($url=~/$LONCAPA::assess_re/) && (!$exttool)) { |
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# |
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# This is uploaded homework |
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# |
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$env{'request.state'}='uploaded'; |
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&Apache::lonhomework::renderpage($r,$url); |
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} else { |
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# |
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# This is not homework |
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# |
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if (($is_ext) || ($exttool)) { |
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$absolute = $env{'request.use_absolute'}; |
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$ENV{'QUERY_STRING'} =~ s/(^|\&)symb=[^\&]*/$1/; |
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$ENV{'QUERY_STRING'} =~ s/\&$//; |
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} |
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unless ($ENV{'QUERY_STRING'} eq '') { |
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$url.=(($url=~/\?/)?'&':'?').$ENV{'QUERY_STRING'}; |
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} |
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# encrypt url if not external |
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unless ($is_ext) { |
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&Apache::lonenc::check_encrypt(\$url); |
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} |
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$r->print( wrapper($url,$brcrum,$absolute,$is_ext,$is_pdf,$exttool, |
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$linktext,$explanation,undef,$width,$height) ); |
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} # not just the menu |
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return OK; |
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} # handler |
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1; |
1; |
__END__ |
__END__ |
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=pod |
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=head1 NAME |
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Apache::lonwrapper - External and binary file management. |
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=head1 SYNOPSIS |
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Wrapper for external and binary files as standalone resources. Edit handler for rat maps; TeX content handler. |
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This is part of the LearningOnline Network with CAPA project |
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described at http://www.lon-capa.org. |
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=head1 Subroutines |
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=over |
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=item wrapper($url,$brcrum,$absolute,$is_ext,$is_pdf,$title)) |
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=over |
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=item $url |
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url to display by including in an iframe within a |
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LON-CAPA page which has a standard LON-CAPA inline menu. |
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=item $brcrum |
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breadcrumbs for unregistered urls |
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(i.e., external resources in Supplemental Content). |
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=item $absolute |
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contains protocol (http or https) followed by |
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the hostname, if menu items in the standard LON-CAPA |
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interface created by the call to loncommon::start_page() |
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within &wrapper() need to use absolute URLs rather than |
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relative URLs. |
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That will be the case where an external resource has been |
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served from port 80, when the server customarily serves |
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requests using Apache/SSL (i.e., port 443). mod_rewrite |
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is used to switch requests for external resources and |
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the syllabus: /public/<domain>/<courseid>/syllabus |
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(which might also point at an external resource) |
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from https:// to http:// where the the URL of the remote site |
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specified in the resource itself is http://. |
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This is done to avoid default mixed content blocking |
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in Firefox 23 and later, when serving from Apache/SSL. |
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=item $is_ext |
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true if URL is for an external resource. |
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=item $is_pdf |
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true if URL is for a PDF (based on file extension). |
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=item $title |
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optional. If wrapped item is a PDF, and $env{'browser.mobile'} |
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is true, a link to a PDF is shown. The "title" will be displayed |
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above the link, but if not provided as an arg, $env{'form.title'} |
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will be used, otherwise, the filename will be displayed (unless |
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hidden URL set for the resource). |
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=back |
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Returns markup for the entire page. |
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=item handler() |
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=back |
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=cut |
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