Return to londatecheck.pm CVS log

Up to [LON-CAPA] / loncom / auth

- Bug 6754 LON-CAPA as LTI Consumer
  Support for access control using slots, and also for time interval
  for external tools set to be "gradable".

    1: # Checks contentopen/close settings disable subsequent PerlHandlers if not open
    2: # $Id: londatecheck.pm,v 1.14 2017/12/22 02:00:53 raeburn 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::loncommon();
   32: use Apache::Constants qw(:common :http :methods);
   33: 
   34: sub content_date_check {
   35:     my $symb=$env{'request.symb'};
   36:     my $open=&Apache::lonnet::EXT('resource.0.contentopen',$symb);
   37:     my $close=&Apache::lonnet::EXT('resource.0.contentclose',$symb);
   38:     if ( (defined($open)  && $open  ne '' && time < $open) ) {
   39: 	return ('CLOSED',$open,$close,
   40: 		'<p class="LC_warning">'.&mt('Not open to be viewed').'</p>'.
   41: 		&mt("This resource currently isn't open. ".
   42: 		    "It will be available at [_1].",
   43: 		    &Apache::lonlocal::locallocaltime($open)));
   44:     }
   45:     if ( (defined($close) && $close ne '' && time > $close) ) {
   46: 	return ('CLOSED',$open,$close,
   47: 		'<p class="LC_warning">'.&mt('Not open to be viewed').'</p>'.
   48: 		&mt("This resource is no longer available to be viewed."));
   49:     }
   50:     return ('OPEN',$open,$close);
   51: }
   52: 
   53: sub handler {
   54:     my ($r)=@_;
   55:     if (&Apache::lonnet::allowed('bre',$r->uri) eq 'F') {
   56: 	return DECLINED;
   57:     }
   58:     if (($r->uri =~ /ext\.tool$/) &&
   59:         (&Apache::lonnet::EXT('resource.0.gradable',$env{'request.symb'}) =~ /^yes$/i)) {
   60:         return DECLINED;
   61:     }
   62:     my ($status,$open,$close,$msg)=&content_date_check();
   63:     if ($status ne 'OPEN') {
   64: 	$r->set_handlers('PerlHandler'=>undef);
   65: 	&Apache::loncommon::content_type($r,'text/html');
   66: 	$r->send_http_header;
   67: 	return OK if $r->header_only;
   68: 	my $start_page =
   69: 	    &Apache::loncommon::start_page('Not Open',undef,
   70: 					   {'bgcolor'        => '#FFFFFF',
   71: 					    'force_register' => 1,});
   72: 	my $end_page   =
   73: 	    &Apache::loncommon::end_page({'discussion' => 1});
   74: 	$r->print($start_page.$msg.$end_page);
   75: 
   76: 	return OK;
   77:     }
   78:     return DECLINED;
   79: }
   80: 1;