1: # The LearningOnline Network with CAPA
2: # essay (ungraded) style responses
3: #
4: # $Id: essayresponse.pm,v 1.25 2003/02/27 21:20:48 sakharuk 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 $result;
93: if ( $target eq 'grade' ) {
94: my $collaborators = $ENV{'form.HWCOL'.$part.'_'.$id};
95: if ($collaborators =~ /[^\s]/) {
96: my $previous_list= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"});
97: $Apache::lonhomework::results{"resource.$part.$id.collaborators"}=$collaborators
98: if ($collaborators ne $previous_list);
99: }
100: if ( defined $ENV{'form.submitted'}) {
101: my $response = $ENV{'form.HWVAL'.$id};
102: my $filename= $ENV{'form.HWFILE'.$part.'_'.$id.'.filename'};
103: if (( $response =~ /[^\s]/) || ($filename =~ /[^\s]/)) {
104: my $award;
105: if ($ENV{'form.HWDRAFT'.$part.'_'.$id} eq 'yes') {
106: $award='SUBMITTED';
107: } else {
108: $award='DRAFT';
109: }
110: my $uploadedflag=0;
111: if ($filename =~ /[^\s]/) {
112: my $uploadedfiletypes= &Apache::lonnet::EXT("resource.$part".'_'."$id.uploadedfiletypes");
113: $uploadedfiletypes=~s/[^\w\,]//g;
114: $uploadedfiletypes=','.$uploadedfiletypes.',';
115: my ($extension)=($filename=~/\.(\w+)$/);
116: if ($uploadedfiletypes=~/\,$extension\,/i) {
117: $Apache::lonhomework::results{"resource.$part.$id.uploadedfile"}=$filename;
118: $Apache::lonhomework::results{"resource.$part.$id.uploadedurl"}=
119: &Apache::lonnet::userfileupload('HWFILE'.$part.'_'.$id);
120: $uploadedflag=1;
121: } else {
122: $award='INVALID_FILETYPE';
123: }
124: }
125: $Apache::lonhomework::results{"resource.$part.$id.submission"}=$response;
126: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$award;
127: my %previous=&Apache::response::check_for_previous($response,$part,$id);
128: unless ($uploadedflag) { &Apache::response::handle_previous(\%previous,$award); }
129: }
130: }
131: } elsif ($target eq 'edit') {
132: $result.=&Apache::edit::end_table();
133: } elsif ($target eq 'tex') {
134: if ($Apache::lonhomework::type eq 'exam') {
135: my $id = $Apache::inputtags::part;
136: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
137: my $repetition = int $weight/9;
138: if ($weight % 9 != 0) {$repetition++;}
139: $result.='\begin{enumerate}';
140: for (my $i=0;$i<$repetition;$i++) {
141: $result.='\item[\textbf{'.$Apache::lonxml::counter.'}.]\textit{Leave blank on scoring form}\vskip 0 mm';
142: &Apache::lonxml::increment_counter();
143: }
144: $result.= '\end{enumerate}';
145: }
146: }
147:
148: &Apache::response::end_response;
149: return $result;
150: }
151:
152: sub check_collaborators {
153: my ($ncol,$coll) = @_;
154: my %classlist=&Apache::lonnet::dump('classlist',
155: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
156: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
157: my (@badcollaborators,$result);
158: my (@collaborators) = split(/\,?\s+/,$coll);
159: foreach (@collaborators) {
160: my $collaborator = $_;
161: if (/@/) {
162: $collaborator =~ s/@/:/;
163: } else {
164: $collaborator = $_.':'.$ENV{'user.domain'};
165: }
166: push @badcollaborators, $_ if (!grep /^$collaborator/i,keys %classlist);
167: }
168:
169: if (scalar(@badcollaborators)) {
170: $result = '<table border="0"><tr bgcolor="#ffbbbb"><td> The following user'.
171: (scalar(@badcollaborators) > 1 ? 's are' : ' is').' invalid: '.
172: join(', ',@badcollaborators).'. Please correct.</td></tr></table>';
173: }
174: my $toomany = scalar(@collaborators) - $ncol;
175: if ($toomany > 0) {
176: $result .= '<table border="0"><tr bgcolor="#ffbbbb"><td>'.
177: 'You have too many collaborators. Please remove '.$toomany.' collaborator'.
178: ($toomany > 1 ? 's' :'').'.</td></tr></table>';
179: }
180: return $result;
181: }
182:
183: 1;
184: __END__
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