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File:  [LON-CAPA] / loncom / auth / londatecheck.pm
Revision 1.4: download - view: text, annotated - select for diffs
Mon Aug 23 18:57:16 2004 UTC (19 years, 9 months ago) by albertel
Branches: MAIN
CVS tags: HEAD
- don't tell student 'Go Away' when an html page is closed
- allow CC to see closed content
   (BUG#3357)

    1: # Checks contentopen/close settings disable subsequent PerlHandlers if not open
    2: # $Id: londatecheck.pm,v 1.4 2004/08/23 18:57:16 albertel Exp $
    3: #
    4: # Copyright Michigan State University Board of Trustees
    5: #
    6: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
    7: #
    8: # LON-CAPA is free software; you can redistribute it and/or modify
    9: # it under the terms of the GNU General Public License as published by
   10: # the Free Software Foundation; either version 2 of the License, or
   11: # (at your option) any later version.
   12: #
   13: # LON-CAPA is distributed in the hope that it will be useful,
   14: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   15: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   16: # GNU General Public License for more details.
   17: #
   18: # You should have received a copy of the GNU General Public License
   19: # along with LON-CAPA; if not, write to the Free Software
   20: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   21: #
   22: # /home/httpd/html/adm/gpl.txt
   23: #
   24: # http://www.lon-capa.org/
   25: #
   26: 
   27: use strict;
   28: package Apache::londatecheck;
   29: use Apache::lonnet();
   30: use Apache::lonlocal;
   31: use Apache::Constants qw(:common :http :methods);
   32: 
   33: sub content_date_check {
   34:     my $symb=$ENV{'request.symb'};
   35:     my $open=&Apache::lonnet::EXT('resource.0.contentopen',$symb);
   36:     my $close=&Apache::lonnet::EXT('resource.0.contentclose',$symb);
   37:     if ( (defined($open)  && $open  ne '' && time < $open) ) {
   38: 	return ('CLOSED',$open,$close,
   39: 		&mt("This resource currently isn't open. ".
   40: 		    "It will be available at [_1].",
   41: 		    &Apache::lonlocal::locallocaltime($open)));
   42:     }
   43:     if ( (defined($close) && $close ne '' && time > $close) ) {
   44: 	return ('CLOSED',$open,$close,
   45: 		&mt("This resource is no longer available to be viewed."));
   46:     }
   47:     return ('OPEN',$open,$close);
   48: }
   49: 
   50: sub handler {
   51:     my ($r)=@_;
   52:     if (&Apache::lonnet::allowed('bre',$ENV{'request.filename'}) eq 'F') {
   53: 	return OK;
   54:     }
   55:     my ($status,$open,$close,$msg)=&content_date_check();
   56:     if ($status ne 'OPEN') {
   57: 	$r->set_handlers('PerlHandler'=>undef);
   58: 	&Apache::loncommon::content_type($r,'text/html');
   59: 	$r->send_http_header;
   60: 	return OK if $r->header_only;
   61: 	$r->print('<html><head><title>Go Away!</title>');
   62: 	my $addentries=' onLoad="'.&Apache::lonmenu::loadevents().
   63: 	    '" onUnload="'.&Apache::lonmenu::unloadevents().'"';
   64: 	$r->print(&Apache::lonmenu::registerurl(1));
   65: 	$r->print('</head>'.
   66: 		  &Apache::loncommon::bodytag('','',$addentries,'','',
   67: 					      undef));
   68: 
   69: 	$r->print($msg);
   70: 	$r->print('</body></html>');
   71:     }
   72:     return OK;
   73: }
   74: 1;
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