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File:  [LON-CAPA] / rat / lonwrapper.pm
Revision 1.20: download - view: text, annotated - select for diffs
Sun Mar 19 23:06:00 2006 UTC (18 years, 1 month ago) by albertel
Branches: MAIN
CVS tags: HEAD
- start_page

    1: # The LearningOnline Network with CAPA
    2: # Wrapper for external and binary files as standalone resources
    3: #
    4: # $Id: lonwrapper.pm,v 1.20 2006/03/19 23:06:00 albertel 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: package Apache::lonwrapper;
   30: 
   31: use strict;
   32: use Apache::Constants qw(:common);
   33: use Apache::lonnet;
   34: use Apache::lonxml();
   35: use Apache::lonmenu;
   36: 
   37: # ================================================================ Main Handler
   38: 
   39: sub handler {
   40:   my $r=shift;
   41:   &Apache::loncommon::content_type($r,'text/html');
   42:   $r->send_http_header;
   43: 
   44:   return OK if $r->header_only;
   45: 
   46:   &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
   47:                                           ['wrapperdisplay']);
   48:   my $orgurl=$r->uri;
   49:   my $url=$orgurl;
   50:   $orgurl.=(($orgurl=~/\?/)?'&':'?').$ENV{'QUERY_STRING'};
   51:   $orgurl.=(($orgurl=~/\?/)?'&':'?').'wrapperdisplay=menu';
   52:   $url=~s/^\/adm\/wrapper//;
   53:   my $is_ext = $url =~ m|^/ext/|;
   54:   $url=~s/^\/ext\//http\:\/\//;
   55:   $url=~s|:|:|g;
   56:   if ($env{'form.wrapperdisplay'} eq 'menu') {
   57: #
   58: # Producing the menu buttons
   59: #
   60:       $r->print('<html><body bgcolor="#FFFFFF">'.
   61:                 &Apache::lonmenu::menubuttons(1,'web',1).'</body></html>');
   62:   } else {
   63: #
   64: # Actual URL
   65: #
   66:       if ($url=~/\.(problem|exam|quiz|assess|survey|form|library)$/) {
   67: #
   68: # This is uploaded homework
   69: #
   70:           $env{'request.state'}='uploaded';
   71:           &Apache::lonhomework::renderpage($r,$url);
   72:       } else {
   73: #
   74: # This is not homework
   75: #
   76: 	  if ($is_ext) {
   77: 	      $ENV{'QUERY_STRING'}=~s/(^|\&)symb=[^\&]*/$1/;
   78: 	  }
   79: 	  $url.=(($url=~/\?/)?'&':'?').$ENV{'QUERY_STRING'}; 
   80:                                                  # reappend the query arguments
   81: 	  my $events='onLoad="'.&Apache::lonmenu::loadevents.
   82: 	      '" onUnload="'.&Apache::lonmenu::unloadevents.'"';
   83: 	  my $script=&Apache::lonmenu::registerurl(1,undef);
   84: 
   85: 	  if ($env{'browser.interface'} eq 'textual') {
   86: #
   87: # ssi-based rendering for text-based interface
   88: #
   89: 	      $r->print('<html><head>'.
   90: 			&Apache::lonmenu::registerurl(1).
   91: 			'</head><body bgcolor="#FFFFFF">'.
   92: 			&Apache::lonmenu::menubuttons(1).
   93: 			&Apache::lonnet::ssi_body($url).'</body></html>');
   94: 	  } elsif ($env{'environment.remote'} eq 'off') {
   95: #
   96: # This is inline remote
   97: # 
   98: 	      $r->print(<<ENDDOCUMENTINL);
   99: <html>
  100: <head>
  101: $script
  102: </head>
  103: <frameset rows="180,*" border="0" $events>
  104: <frame src="$orgurl">
  105: <frame src="$url">
  106: </frameset>
  107: </html>
  108: ENDDOCUMENTINL
  109:           } else {
  110: #
  111: # frame-based rendering for graphical interface
  112: #
  113: 	  $r->print(<<ENDDOCUMENT);
  114: <html>
  115: <head>
  116: $script
  117: </head>
  118: <frameset rows="1,*" border="0" $events>
  119: <frame src="/adm/rat/empty.html">
  120: <frame src="$url">
  121: </frameset>
  122: </html>
  123: ENDDOCUMENT
  124:           }
  125:       } # not homework
  126:   } # not just the menu
  127:   return OK;
  128: } # handler
  129: 
  130: 1;
  131: __END__
  132: 
  133: 
  134: 
  135: 
  136: 
  137: 
  138:
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