1: # The LearningOnline Network with CAPA
2: # essay (ungraded) style responses
3: #
4: # $Id: essayresponse.pm,v 1.31 2003/04/21 20:59:02 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: # 4/3 Guy
29: # July, 2002, H. K. Ng
30: #
31: package Apache::essayresponse;
32: use strict;
33: use Apache::lonxml;
34: use Apache::lonnet;
35:
36: BEGIN {
37: &Apache::lonxml::register('Apache::essayresponse',('essayresponse'));
38: }
39:
40: sub start_essayresponse {
41: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
42: my $result;
43: my $id = &Apache::response::start_response($parstack,$safeeval);
44: if ($target eq 'meta') {
45: $result=&Apache::response::meta_package_write('essayresponse');
46: } elsif ($target eq 'web') {
47: my $part= $Apache::inputtags::part;
48:
49: my $ncol= &Apache::lonnet::EXT("resource.$part".'_'."$id.maxcollaborators");
50: my $coll= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"});
51: my $uploadedfiletypes= &Apache::lonnet::EXT("resource.$part".'_'."$id.uploadedfiletypes");
52: $uploadedfiletypes=~s/[^\w\,]//g;
53: my $uploadedfile= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.uploadedfile"});
54: $result='<br /><table border="1">';
55: $result.='<tr><td>'.
56: '<input type="radio" name="HWDRAFT'.$part.'_'.$id.'" value="yes" checked>'.
57: ' Submit entries below as answer to receive credit <br />'.
58: '<input type="radio" name="HWDRAFT'.$part.'_'.$id.'" value="no">'.
59: ' Save entries below as a draft answer (not submitting them for credit yet) '.
60: '</td></tr>';
61: if ($ncol > 0) {
62: $result .='<tr><td>'.
63: 'Collaborators: <input type="text" size="70" max="80" name="HWCOL'.
64: $part.'_'.$id.'" value="'.$coll.'" /><br />'.
65: '(Enter maximum '.$ncol.' collaborators using username or username@domain, e.g. '.
66: 'smithje or smithje@'.$ENV{'user.domain'}.'.)<br />';
67: $result .= &check_collaborators($ncol,$coll) if ($coll =~ /\w+/);
68: $result .='</td></tr>';
69: }
70: if ($uploadedfiletypes) {
71: $result.=
72: '<tr><td>Submit a file: <input type="file" size="50" name="HWFILE'.
73: $part.'_'.$id.'" onFocus="this.form.enctype='.
74: "'multipart/form-data'".';" /><br />Allowed filetypes: <b>'.$uploadedfiletypes.'</b><br />';
75: if ($uploadedfile) {
76: $result.='Currently submitted: <tt><a href="'.
77: &Apache::lonnet::tokenwrapper($Apache::lonhomework::history{"resource.$part.$id.uploadedurl"}).'"><img src="/adm/lonIcons/unknown.gif" border=0"> '.$uploadedfile.'</a></tt>';
78: } else {
79: $result.='(Hand in a file you have prepared on your computer)';
80: }
81: $result.='</td></tr>';
82: }
83: $result.='</table>';
84: }
85: return $result;
86: }
87:
88: sub end_essayresponse {
89: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
90: my $part = $Apache::inputtags::part;
91: my $id = $Apache::inputtags::response[-1];
92: my $increment = 1;
93: my $result;
94: if ( $target eq 'grade' ) {
95: my $collaborators = $ENV{'form.HWCOL'.$part.'_'.$id};
96: if ($collaborators =~ /[^\s]/) {
97: my $previous_list= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"});
98: $Apache::lonhomework::results{"resource.$part.$id.collaborators"}=$collaborators
99: if ($collaborators ne $previous_list);
100: }
101: if ( defined($ENV{'form.submitted'}) &&
102: $ENV{'form.submitted'} eq 'scantron' ) {
103: $increment=&Apache::response::scored_response($part,$id);
104: } elsif ( defined($ENV{'form.submitted'}) ) {
105: my $response = $ENV{'form.HWVAL_'.$id};
106: my $filename= $ENV{'form.HWFILE'.$part.'_'.$id.'.filename'};
107: if (( $response =~ /[^\s]/) || ($filename =~ /[^\s]/)) {
108: my $award;
109: if ($ENV{'form.HWDRAFT'.$part.'_'.$id} eq 'yes') {
110: $award='SUBMITTED';
111: } else {
112: $award='DRAFT';
113: }
114: my $uploadedflag=0;
115: if ($filename =~ /[^\s]/) {
116: my $uploadedfiletypes= &Apache::lonnet::EXT("resource.$part".'_'."$id.uploadedfiletypes");
117: $uploadedfiletypes=~s/[^\w\,]//g;
118: $uploadedfiletypes=','.$uploadedfiletypes.',';
119: my ($extension)=($filename=~/\.(\w+)$/);
120: if ($uploadedfiletypes=~/\,$extension\,/i) {
121: $Apache::lonhomework::results{"resource.$part.$id.uploadedfile"}=$filename;
122: $Apache::lonhomework::results{"resource.$part.$id.uploadedurl"}=
123: &Apache::lonnet::userfileupload('HWFILE'.$part.'_'.$id);
124: $uploadedflag=1;
125: } else {
126: $award='INVALID_FILETYPE';
127: }
128: }
129: $Apache::lonhomework::results{"resource.$part.$id.submission"}=$response;
130: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$award;
131: my %previous=&Apache::response::check_for_previous($response,$part,$id);
132: unless ($uploadedflag) { &Apache::response::handle_previous(\%previous,$award); }
133: }
134: }
135: } elsif ($target eq 'edit') {
136: $result.=&Apache::edit::end_table();
137: } elsif ($target eq 'tex') {
138: if ($Apache::lonhomework::type eq 'exam') {
139: my $repetition=&Apache::response::repetition();
140: $result.='\begin{enumerate}';
141: for (my $i=0;$i<$repetition;$i++) {
142: $result.='\item[\textbf{'.($Apache::lonxml::counter+$i).
143: '}.]\textit{Leave blank on scoring form}\vskip 0 mm';
144: }
145: $result.= '\end{enumerate}';
146: }
147: }
148: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
149: $target eq 'tex' || $target eq 'analyze') {
150: &Apache::lonxml::increment_counter($increment);
151: }
152: &Apache::response::end_response;
153: return $result;
154: }
155:
156: sub check_collaborators {
157: my ($ncol,$coll) = @_;
158: my %classlist=&Apache::lonnet::dump('classlist',
159: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
160: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
161: my (@badcollaborators,$result);
162: my (@collaborators) = split(/\,?\s+/,$coll);
163: foreach (@collaborators) {
164: my $collaborator = $_;
165: if (/@/) {
166: $collaborator =~ s/@/:/;
167: } else {
168: $collaborator = $_.':'.$ENV{'user.domain'};
169: }
170: push @badcollaborators, $_ if (!grep /^$collaborator/i,keys %classlist);
171: }
172:
173: if (scalar(@badcollaborators)) {
174: $result = '<table border="0"><tr bgcolor="#ffbbbb"><td> The following user'.
175: (scalar(@badcollaborators) > 1 ? 's are' : ' is').' invalid: '.
176: join(', ',@badcollaborators).'. Please correct.</td></tr></table>';
177: }
178: my $toomany = scalar(@collaborators) - $ncol;
179: if ($toomany > 0) {
180: $result .= '<table border="0"><tr bgcolor="#ffbbbb"><td>'.
181: 'You have too many collaborators. Please remove '.$toomany.' collaborator'.
182: ($toomany > 1 ? 's' :'').'.</td></tr></table>';
183: }
184: return $result;
185: }
186:
187: 1;
188: __END__
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