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- 2622 for math, external, custom

    1: # The LearningOnline Network with CAPA
    2: # external style responses
    3: #
    4: # $Id: externalresponse.pm,v 1.7 2007/04/18 00:19:37 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::externalresponse;
   30: use strict;
   31: use HTTP::Request::Common;
   32: use Apache::loncapagrade;
   33: use Apache::lonnet;
   34: 
   35: BEGIN {
   36:     &Apache::lonxml::register('Apache::externalresponse',('externalresponse'));
   37: }
   38: 
   39: #FIXME
   40: # send of response params and there current values
   41: # accept a string to be printed out (Where does it get shown?) (.message)
   42: # need to get a correct answer from somewhere (probably here since randomized)
   43: sub start_externalresponse {
   44:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   45:     my $result;
   46:     my $id = &Apache::response::start_response($parstack,$safeeval);
   47:     return $result;
   48: }
   49: 
   50: sub end_externalresponse {
   51:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   52:     my $result;
   53:     my $part=$Apache::inputtags::part;
   54:     my $id = $Apache::inputtags::response['-1'];
   55:     my $increment     = 1;
   56:     if ($target eq 'grade') {
   57: 	if (  &Apache::response::submitted('scantron') ) {
   58: 	    my $increment=&Apache::response::scored_response($part,$id);
   59: 	} elsif ( &Apache::response::submitted() ) {
   60: 	    my $response = &Apache::response::getresponse();
   61: 	    if ( $response =~ /[^\s]/) {
   62: 		my $url = &Apache::lonxml::get_param('url',$parstack,$safeeval);
   63: 		my $answer = &Apache::lonxml::get_param('answer',$parstack,$safeeval);
   64: 		my %form = &Apache::lonxml::get_param_var('form',$parstack,$safeeval);
   65: 		$form{'LONCAPA_student_response'}=$response;
   66: 		$form{'LONCAPA_correct_answer'}=$answer;
   67: 		$form{'LONCAPA_language'}=
   68: 		    &Apache::lonnet::metadata($ENV{'REQUEST_URI'},'language');
   69: 		&Apache::lonxml::debug("Asking $url, with:");
   70: 		&Apache::lonhomework::showhash(%form);
   71: 		my $ua = LWP::UserAgent->new;
   72: 		my $res = $ua->request(POST $url, \%form);
   73: 		my %previous = &Apache::response::check_for_previous($response,
   74: 								     $part,$id);
   75: 		%Apache::loncapagrade::results=();
   76: 		$Apache::lonhomework::results{"resource.$part.$id.submission"}=$response;
   77: 		if ($res->{_rc} != '200') {
   78: 		    $Apache::loncapagrade::results{'awarddetail'}='ERROR';
   79: 		} else {
   80: 		    &Apache::lonxml::register('Apache::loncapagrade',
   81: 					      ('loncapagrade'));
   82: 		    my $result=&Apache::scripttag::xmlparse($res->{_content});
   83: 		    &Apache::lonxml::debug("Got a result of :$result:");
   84: 		}
   85: 		foreach my $key (keys(%Apache::loncapagrade::results)) {
   86: 		    $Apache::lonhomework::results{"resource.$part.$id.$key"}=
   87: 			$Apache::loncapagrade::results{$key};
   88: 		}
   89: 		&Apache::response::handle_previous(\%previous,
   90: 						   $Apache::loncapagrade::results{'awarddetail'});
   91: 		&Apache::lonxml::debug("response of");
   92: 		&Apache::lonhomework::showhash(%$res);
   93: 		&Apache::lonxml::debug("capagrade of");
   94: 		&Apache::lonhomework::showhash(%Apache::loncapagrade::results);
   95: 		&Apache::lonxml::debug("results of");
   96: 		&Apache::lonhomework::showhash(%Apache::lonhomework::results);
   97: 	    }
   98: 	}
   99:     }
  100:     if ($target eq 'web') {
  101: 	&Apache::response::setup_prior_tries_hash(\&format_prior_response);
  102:     }
  103: 
  104:     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
  105: 	$target eq 'tex' || $target eq 'analyze') {
  106: 	&Apache::lonxml::increment_counter($increment);
  107:     }
  108:     &Apache::response::end_response();
  109:     return $result;
  110: }
  111: 
  112: sub format_prior_response {
  113:     my ($mode,$answer) =@_;
  114:     return '<span class="LC_prior_external">'.
  115: 	    &HTML::Entities::encode($answer,'"<>&').'</span>';
  116: }
  117: 
  118: 1;
  119: __END__
  120: 
  121: