File:  [LON-CAPA] / rat / lonwrapper.pm
Revision 1.32: download - view: text, annotated - select for diffs
Fri Dec 19 14:30:51 2008 UTC (15 years, 4 months ago) by raeburn
Branches: MAIN
CVS tags: version_2_9_X, version_2_8_99_0, HEAD, GCI_2
- Escape : in regexp, and separate ? and :

    1: # The LearningOnline Network with CAPA
    2: # Wrapper for external and binary files as standalone resources
    3: #
    4: # $Id: lonwrapper.pm,v 1.32 2008/12/19 14:30:51 raeburn Exp $
    5: #
    6: # Copyright Michigan State University Board of Trustees
    7: #
    8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
    9: #
   10: # LON-CAPA is free software; you can redistribute it and/or modify
   11: # it under the terms of the GNU General Public License as published by
   12: # the Free Software Foundation; either version 2 of the License, or
   13: # (at your option) any later version.
   14: #
   15: # LON-CAPA is distributed in the hope that it will be useful,
   16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   18: # GNU General Public License for more details.
   19: #
   20: # You should have received a copy of the GNU General Public License
   21: # along with LON-CAPA; if not, write to the Free Software
   22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   23: #
   24: # /home/httpd/html/adm/gpl.txt
   25: #
   26: # http://www.lon-capa.org/
   27: #
   28: 
   29: 
   30: package Apache::lonwrapper;
   31: 
   32: use strict;
   33: use Apache::Constants qw(:common);
   34: use Apache::lonnet;
   35: use Apache::lonxml();
   36: use Apache::lonenc();
   37: use Apache::lonmenu();
   38: 
   39: # ================================================================ Main Handler
   40: 
   41: sub simple_menu {
   42: #
   43: # Producing the menu buttons
   44: #
   45:     return &Apache::loncommon::start_page('Menu',undef,
   46: 					  {'only_body' => 1,
   47: 					   'bgcolor'   => '#FFFFFF',}).
   48: 	&Apache::lonmenu::menubuttons(1,'web',1).
   49: 	&Apache::loncommon::end_page();
   50: }
   51: 
   52: 
   53: sub wrapper {
   54:     my ($topurl,$bottomurl) = @_;
   55: 
   56:     if ($env{'browser.interface'} eq 'textual') {
   57: #
   58: # ssi-based rendering for text-based interface
   59: #
   60: 	return 
   61: 	    &Apache::loncommon::start_page('Menu',undef,
   62: 					  {'bgcolor'        => '#FFFFFF',
   63: 					   'force_register' => 1,
   64: 				       }).
   65: 	    &Apache::lonnet::ssi_body($bottomurl).
   66: 	    &Apache::loncommon::end_page();
   67:     }
   68: 
   69: 
   70:     my %layout = ('border' => 0);
   71:     if ($env{'environment.remote'} eq 'off') {
   72:         if ($env{'environment.icons'} eq 'iconsonly') {
   73:            $layout{'rows'} = "100,*";
   74:         } else {
   75: 	   $layout{'rows'} = "200,*";
   76:         }
   77:     } else {
   78: 	$layout{'rows'} = "1,*";
   79: 	$topurl = "/adm/rat/empty.html";
   80:     }
   81: 
   82:     my $start_page = 
   83: 	&Apache::loncommon::start_page(undef,undef,
   84: 				       {'force_register' => 1,
   85: 					'frameset'       => 1,
   86: 					'add_entries'    => \%layout, });
   87: 
   88:     my $end_page = 
   89: 	&Apache::loncommon::end_page({'frameset' => 1});
   90:     
   91:     foreach my $url ($topurl,$bottomurl) {
   92: 	if ($url !~ /^https?\:/) {
   93: 	    $url = &Apache::lonenc::check_encrypt($url);
   94: 	}
   95:     }
   96: #
   97: # frame-based rendering for graphical interface
   98: #
   99:     my $result =<<ENDDOCUMENT;
  100: $start_page
  101: test
  102: <frame src="$topurl" />
  103: <frame src="$bottomurl" />
  104: $end_page
  105: ENDDOCUMENT
  106: 
  107:     return $result;
  108: }
  109: 
  110: sub handler {
  111:     my $r=shift;
  112:     &Apache::loncommon::content_type($r,'text/html');
  113:     $r->send_http_header;
  114: 
  115:     return OK if $r->header_only;
  116: 
  117:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
  118: 					    ['wrapperdisplay']);
  119:     if ($env{'form.wrapperdisplay'} eq 'menu') {
  120: 	$r->print(&simple_menu());
  121: 	return OK;
  122:     }
  123: 
  124:     my $orgurl=$r->uri;
  125:     my $url=$orgurl;
  126:     $orgurl.=(($orgurl=~/\?/)?'&':'?').$ENV{'QUERY_STRING'};
  127:     $orgurl.=(($orgurl=~/\?/)?'&':'?').'wrapperdisplay=menu';
  128:     $url=~s/^\/adm\/wrapper//;
  129:     my $is_ext = $url =~ m|^/ext/|;
  130:     $url=~s{^/ext/}{http://};
  131:     $url=~s|http://https://|https://|;
  132:     $url=~s|&colon;|:|g;
  133: #
  134: # Actual URL
  135: #
  136:     if ($url=~/\.(problem|exam|quiz|assess|survey|form|library)$/) {
  137: #
  138: # This is uploaded homework
  139: #
  140: 	$env{'request.state'}='uploaded';
  141: 	&Apache::lonhomework::renderpage($r,$url);
  142:     } else {
  143: #
  144: # This is not homework
  145: #
  146: 	if ($is_ext) {
  147: 	    $ENV{'QUERY_STRING'}=~s/(^|\&)symb=[^\&]*/$1/;
  148: 	}
  149: 	$url.=(($url=~/\?/)?'&':'?').$ENV{'QUERY_STRING'}; 
  150: 	# reappend the query arguments
  151: 	$r->print(&wrapper($orgurl,$url));
  152:     } # not just the menu
  153:     return OK;
  154: } # handler
  155: 
  156: 1;
  157: __END__
  158: 
  159: =pod
  160: 
  161: =head1 NAME
  162: 
  163: Apache::lonwrapper - External and binary file management.
  164: 
  165: =head1 SYNOPSIS
  166: 
  167: Wrapper for external and binary files as standalone resources. Edit handler for rat maps; TeX content handler.
  168: 
  169: This is part of the LearningOnline Network with CAPA project
  170: described at http://www.lon-capa.org.
  171: 
  172: =head1 Subroutines
  173: 
  174: =over
  175: 
  176: =item simple_menu()
  177: 
  178: =item wrapper()
  179: 
  180: =item handler()
  181: 
  182: =back
  183: 
  184: =cut
  185: 
  186: 
  187: 
  188: 
  189: 
  190: 
  191: 

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