Return to essayresponse.pm CVS log

Up to [LON-CAPA] / loncom / homework

- ENV -> env

# The LearningOnline Network with CAPA
# essay (ungraded) style responses
#
# $Id: essayresponse.pm,v 1.62 2005/04/07 06:56:21 albertel Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# LON-CAPA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#

package Apache::essayresponse;
use strict;
use Apache::lonxml();
use Apache::lonnet;
use Apache::lonlocal;

BEGIN {
    &Apache::lonxml::register('Apache::essayresponse',('essayresponse'));
}

sub start_essayresponse {
    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
    my $result;
    my $id = &Apache::response::start_response($parstack,$safeeval);
    if ($target eq 'meta') {
	$result=&Apache::response::meta_package_write('essayresponse');
    } elsif ($target eq 'web') {
	my $part= $Apache::inputtags::part;
	my $ncol= &Apache::lonnet::EXT("resource.$part".'_'."$id.maxcollaborators");
	my $coll= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"},'<>&"');
	my $uploadedfiletypes= &Apache::lonnet::EXT("resource.$part".'_'."$id.uploadedfiletypes");
        $uploadedfiletypes=~s/[^\w\,]//g;
	$result='<br /><table border="1">';
	$result.='<tr><td>'.
	    '<input type="radio" name="HWDRAFT'.$part.'_'.$id.'" value="yes" checked="checked" /> '.
	    &mt('Submit entries below as answer to receive credit').' <br />'.
	    '<input type="radio" name="HWDRAFT'.$part.'_'.$id.'" value="no" /> '.
	    &mt('Save entries below as a draft answer (not submitting them for credit yet)').
	    ' </td></tr>';
	if ($ncol > 0) {
	    $result .='<tr><td>'.
		'Collaborators: <input type="text" size="70" max="80" name="HWCOL'.
		$part.'_'.$id.'" value="'.$coll.'" /><br />'.
		&mt('(Enter maximum [_1] collaborators using username or username@domain, e.g. smithje or smithje@[_2].)',$ncol,$env{'user.domain'}).'<br />';
	    $result .= &check_collaborators($ncol,$coll) if ($coll =~ /\w+/);
	    $result .='</td></tr>';
	}
	$result.=&Apache::inputtags::file_selector($part,$id,
						   $uploadedfiletypes,'both');
        $result.='</table>';
    }
    return $result;
}

sub end_essayresponse {
    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
    my $part          = $Apache::inputtags::part;
    my $id            = $Apache::inputtags::response[-1];
    my $increment     = 1;
    my $result;
    if ( $target eq 'grade' ) {
	my $collaborators = $env{'form.HWCOL'.$part.'_'.$id};	
	if ($collaborators =~ /[^\s]/) {
	    my $previous_list= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"},'<>&"');
	    $Apache::lonhomework::results{"resource.$part.$id.collaborators"}=$collaborators
		if ($collaborators ne $previous_list);
	}
	if (  &Apache::response::submitted('scantron') ) {
	    $increment=&Apache::response::scored_response($part,$id);
	} elsif ( &Apache::response::submitted() ) {
	    my $response      = $env{'form.HWVAL_'.$id};
            my $filename= $env{'form.HWFILE'.$part.'_'.$id.'.filename'};
            my $portfiles = $env{'form.HWPORT'.$part.'_'.$id};
	    if (( $response =~ /[^\s]/) || ($filename =~ /[^\s]/) || ($portfiles =~ /[^\s]/)) {
 		my $award='DRAFT';
        	if ($env{'form.HWDRAFT'.$part.'_'.$id} eq 'yes') {
		    $award='SUBMITTED';
		}
                my $uploadedflag=0;
		&file_submission($part,$id,'filename',$award,\$uploadedflag);
		&file_submission($part,$id,'portfiles',$award,\$uploadedflag);
		$Apache::lonhomework::results{"resource.$part.$id.submission"}=$response;
		$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$award;
		my %previous=&Apache::response::check_for_previous($response,$part,$id);
		unless ($uploadedflag) { &Apache::response::handle_previous(\%previous,$award); }
#
# Store with resource author for similarity testing
#
                if ($award eq 'SUBMITTED') {
		    my ($symb,$crsid,$domain,$name)=
			&Apache::lonxml::whichuser();
		    if ($crsid) {
			my $akey=$name.'.'.$domain.'.'.$crsid;
			my $essayurl=
			    &Apache::lonnet::declutter($ENV{'REQUEST_URI'});
			my ($adom,$aname,$apath)=
			    ($essayurl=~/^(\w+)\/(\w+)\/(.*)$/);
                        $apath=&Apache::lonnet::escape($apath);
			$apath=~s/\W/\_/gs;
			&Apache::lonnet::put('nohist_essay_'.$apath,
					 { $akey => $response },$adom,$aname);
		    }
                }
	    }
	} 
    } elsif ($target eq 'edit') {
	$result.=&Apache::edit::end_table();
    } elsif ($target eq 'tex') {
	if ($Apache::lonhomework::type eq 'exam') {
	    my $repetition=&Apache::response::repetition();
	    $result.='\begin{enumerate}';
	    if ($env{'request.state'} eq "construct" ) {$result.='\item[\strut]';}
	    for (my $i=0;$i<$repetition;$i++) {
		$result.='\item[\textbf{'.($Apache::lonxml::counter+$i).
		    '}.]\textit{'.&mt('Leave blank on scoring form').
		    '}\vskip 0 mm';
	    }
	    $result.= '\end{enumerate}';
	    $increment=$repetition;
	}
    }
    if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
	$target eq 'tex' || $target eq 'analyze') {
	&Apache::lonxml::increment_counter($increment);
    }
    &Apache::response::end_response;

    return $result;
}

sub file_submission {
    my ($part,$id,$which,$award,$uploadedflag)=@_;
    my $files;
    if ($which eq 'portfiles') { $files= $env{'form.HWPORT'.$part.'_'.$id}; }
    if ($which eq 'filename') {
	$files = $env{'form.HWFILE'.$part.'_'.$id.'.filename'};
    }
    
    if ($files =~ /[^\s]/) {
	$files =~s/,$//;
	$Apache::lonhomework::results{"resource.$part.$id.$which"}=$files;
	my @submitted_files = split(/,/,$files);
	my $uploadedfiletypes= &Apache::lonnet::EXT("resource.$part".'_'."$id.uploadedfiletypes");
	$uploadedfiletypes=~s/[^\w\,]//g;
	$uploadedfiletypes=','.$uploadedfiletypes.',';
	foreach my $file (@submitted_files) {
	    my ($extension)=($file=~/\.(\w+)$/);
	    unless ($uploadedfiletypes=~/\,$extension\,/i) {
		$award='INVALID_FILETYPE';
	    }
	}
	if ($award ne 'INVALID_FILETYPE' && ref($uploadedflag)) {
	    $$uploadedflag=1;
	}
	if ($award ne 'INVALID_FILETYPE' && $which eq 'portfiles') {
	    my ($symb,$crsid,$domain,$name)=&Apache::lonxml::whichuser();
	    &Apache::lonnet::unmark_as_readonly($domain,$name,$symb.$crsid);
	    &Apache::lonnet::mark_as_readonly($domain,$name,\@submitted_files,$symb.$crsid);
	    &Apache::lonnet::clear_selected_files($name);
	}
	if ($award ne 'INVALID_FILETYPE' && $which eq 'filename') {
	    $Apache::lonhomework::results{"resource.$part.$id.uploadedfile"}=
		$files;
	    $Apache::lonhomework::results{"resource.$part.$id.uploadedurl"}=
		&Apache::lonnet::userfileupload('HWFILE'.$part.'_'.$id,undef,
						'essayresponse');
	}
    } elsif ($which eq 'portfiles' &&
	     $Apache::lonhomework::history{"resource.$part.$id.$which"}) {
	my ($symb,$crsid,$domain,$name)=&Apache::lonxml::whichuser();
	&Apache::lonnet::unmark_as_readonly($domain,$name,$symb.$crsid);
	$Apache::lonhomework::results{"resource.$part.$id.$which"}="";
    }
}

sub check_collaborators {
    my ($ncol,$coll) = @_;
    my %classlist=&Apache::lonnet::dump('classlist',
					$env{'course.'.$env{'request.course.id'}.'.domain'},
					$env{'course.'.$env{'request.course.id'}.'.num'});
    my (@badcollaborators,$result);
    my (@collaborators) = split(/\,?\s+/,$coll);
    foreach (@collaborators) {
	my $collaborator = $_;
	if (/@/) {
	    $collaborator =~ s/@/:/;
	} else {
	    $collaborator = $_.':'.$env{'user.domain'};
	}
	push @badcollaborators, $_ if (!grep /^$collaborator/i,keys %classlist);
    }
    
    if (scalar(@badcollaborators)) {
	$result = '<table border="0"><tr bgcolor="#ffbbbb"><td> The following user'.
	    (scalar(@badcollaborators) > 1 ? 's are' : ' is').' invalid: '.
	    join(', ',@badcollaborators).'. Please correct.</td></tr></table>';
    }
    my $toomany = scalar(@collaborators) - $ncol;
    if ($toomany > 0) {
	$result .= '<table border="0"><tr bgcolor="#ffbbbb"><td>'.
	    'You have too many collaborators. Please remove '.$toomany.' collaborator'.
	    ($toomany > 1 ? 's' :'').'.</td></tr></table>';
    }
    return $result;
}

1;
__END__

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator at root@localhost to inform them of the time this error occurred, and the actions you performed just before this error.

More information about this error may be available in the server error log.