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Additional work on file upload.

    1: # The LearningOnline Network with CAPA
    2: # essay (ungraded) style responses
    3: #
    4: # $Id: essayresponse.pm,v 1.19 2003/01/23 22:28:55 www 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: # 4/3 Guy
   29: # July, 2002, H. K. Ng
   30: #
   31: package Apache::essayresponse;
   32: use strict;
   33: use Apache::lonxml;
   34: 
   35: BEGIN {
   36:     &Apache::lonxml::register('Apache::essayresponse',('essayresponse'));
   37: }
   38: 
   39: sub start_essayresponse {
   40:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   41:     my $result;
   42:     my $id = &Apache::response::start_response($parstack,$safeeval);
   43:     if ($target eq 'meta') {
   44: 	$result=&Apache::response::meta_package_write('essayresponse');
   45:     } elsif ($target eq 'web') {
   46: 	my $part= $Apache::inputtags::part;
   47: 
   48: 	my $ncol= &Apache::lonnet::EXT("resource.$part".'_'."$id.maxcollaborators");
   49: 	my $coll= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"});
   50: 	my $uploadedfiletypes= &Apache::lonnet::EXT("resource.$part".'_'."$id.uploadedfiletypes");
   51: 	my $uploadedfile= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.uploadedfile"});
   52: 	$result='<br /><table border="1">';
   53: 	if ($ncol > 0) {
   54: 	    $result .='<tr><td>'.
   55: 		'Collaborators: <input type="text" size="70" max="80" name="HWCOL'.
   56: 		$part.'_'.$id.'" value="'.$coll.'" /><br />'.
   57: 		'(Enter maximum '.$ncol.' collaborators using username or username@domain, e.g. '.
   58: 		'smithje or smithje@'.$ENV{'user.domain'}.'.)<br />';
   59: 	    $result .= &check_collaborators($ncol,$coll) if ($coll =~ /\w+/);
   60: 	    $result .='</td></tr>';
   61: 	}
   62:         if ($uploadedfiletypes) {
   63:            $result.=
   64: '<tr><td>Submit a file: <input type="file" size="50" name="HWFILE'.
   65: 		$part.'_'.$id.'" onFocus="this.form.enctype='.
   66: "'multipart/form-data'".';" /><br />Allowed filetypes: <b>'.$uploadedfiletypes.'</b><br />';
   67:            if ($uploadedfile) {
   68: 	       $result.='Currently submitted: <tt>'.$uploadedfile.'</tt>';
   69:            } else {
   70:               $result.='(Hand in a file you have prepared on your computer)';
   71:            }
   72:            $result.='</td></tr>'; 
   73:         }
   74: 	$result.='<tr><td>'.
   75: 	    '<input type="radio" name="HWDRAFT'.$part.'_'.$id.'" value="yes" checked>'.
   76: 	    ' Submit text below as answer to receive credit <br />'.
   77: 	    '<input type="radio" name="HWDRAFT'.$part.'_'.$id.'" value="no">'.
   78: 	    ' Save text below as a draft answer (not submitting it for credit yet) '.
   79: 	    '</td></tr></table>';
   80:     }
   81:     return $result;
   82: }
   83: 
   84: sub end_essayresponse {
   85:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   86:     my $part          = $Apache::inputtags::part;
   87:     my $id            = $Apache::inputtags::response[-1];
   88:     my $result;
   89:     if ( $target eq 'grade' ) {
   90: 	my $collaborators = $ENV{'form.HWCOL'.$part.'_'.$id};	
   91: 	if ($collaborators =~ /[^\s]/) {
   92: 	    my $previous_list= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"});
   93: 	    $Apache::lonhomework::results{"resource.$part.$id.collaborators"}=$collaborators
   94: 		if ($collaborators ne $previous_list);
   95: 	}
   96:         my $filename= $ENV{'form.HWFILE'.$part.'_'.$id.'.filename'};
   97:         if ($filename =~ /[^\s]/) {
   98: 	    $Apache::lonhomework::results{"resource.$part.$id.uploadedfile"}=$filename;
   99:         }
  100: 	if ( defined $ENV{'form.submitted'}) {
  101: 	    my $response      = $ENV{'form.HWVAL'.$id};
  102: 	    if ( $response =~ /[^\s]/) {
  103: 		my $award;
  104: 		if ($ENV{'form.HWDRAFT'.$part.'_'.$id} eq 'yes') {
  105: 		    $award='SUBMITTED';
  106: 		} else {
  107: 		    $award='DRAFT';
  108: 		}
  109: 		$Apache::lonhomework::results{"resource.$part.$id.submission"}=$response;
  110: 		$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$award;
  111: 		my %previous=&Apache::response::check_for_previous($response,$part,$id);
  112: 		&Apache::response::handle_previous(\%previous,$award);
  113: 	    }
  114: 	}
  115:     } elsif ($target eq 'edit') {
  116: 	$result.=&Apache::edit::end_table();
  117:     } elsif ($target eq 'tex') {
  118: 	if ($Apache::lonhomework::type eq 'exam') {
  119: 	    $result.='\begin{enumerate}\item[\textbf{'.$Apache::lonxml::counter.'}.]\textit{Live blank on scoring form}\vskip 0 mm';
  120: 	    &Apache::lonxml::increment_counter();
  121: 	    $result.= '\item[\textbf{'.$Apache::lonxml::counter.'}.]\textit{Leave blank on scoring form}\vskip 0 mm \end{enumerate}';
  122: 	    &Apache::lonxml::increment_counter();
  123: 	}
  124:     }
  125: 
  126:     &Apache::response::end_response;
  127:     return $result;
  128: }
  129: 
  130: sub check_collaborators {
  131:     my ($ncol,$coll) = @_;
  132:     my %classlist=&Apache::lonnet::dump('classlist',
  133: 					$ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
  134: 					$ENV{'course.'.$ENV{'request.course.id'}.'.num'});
  135:     my (@badcollaborators,$result);
  136:     my (@collaborators) = split(/\,?\s+/,$coll);
  137:     foreach (@collaborators) {
  138: 	my $collaborator = $_;
  139: 	if (/@/) {
  140: 	    $collaborator =~ s/@/:/;
  141: 	} else {
  142: 	    $collaborator = $_.':'.$ENV{'user.domain'};
  143: 	}
  144: 	push @badcollaborators, $_ if (!grep /^$collaborator/i,keys %classlist);
  145:     }
  146:     
  147:     if (scalar(@badcollaborators)) {
  148: 	$result = '<table border="0"><tr bgcolor="#ffbbbb"><td> The following user'.
  149: 	    (scalar(@badcollaborators) > 1 ? 's are' : ' is').' invalid: '.
  150: 	    join(', ',@badcollaborators).'. Please correct.</td></tr></table>';
  151:     }
  152:     my $toomany = scalar(@collaborators) - $ncol;
  153:     if ($toomany > 0) {
  154: 	$result .= '<table border="0"><tr bgcolor="#ffbbbb"><td>'.
  155: 	    'You have too many collaborators. Please remove '.$toomany.' collaborator'.
  156: 	    ($toomany > 1 ? 's' :'').'.</td></tr></table>';
  157:     }
  158:     return $result;
  159: }
  160: 
  161: 1;
  162: __END__