1: # The LearningOnline Network with CAPA
2: # essay (ungraded) style responses
3: #
4: # $Id: essayresponse.pm,v 1.71 2006/03/09 01:11:12 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::essayresponse;
30: use strict;
31: use Apache::lonxml();
32: use Apache::lonnet;
33: use Apache::lonlocal;
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: $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
47: my $part= $Apache::inputtags::part;
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: $uploadedfiletypes=~s/[^\w\,]//g;
52: $result='<br /><table border="1">';
53: $result.='<tr><td>'.
54: '<label>'.
55: '<input type="radio" name="HWDRAFT'.$part.'_'.$id.'" value="yes" checked="checked" /> '.
56: &mt('Submit entries below as answer to receive credit').
57: '</label> <br />'.
58: '<label>'.
59: '<input type="radio" name="HWDRAFT'.$part.'_'.$id.'" value="no" /> '.
60: &mt('Save entries below as a draft answer (not submitting them for credit yet)').
61: '</label>'.
62: ' </td></tr>';
63: if ($ncol > 0) {
64: $result .='<tr><td>'.'<label>'.
65: 'Collaborators: <input type="text" size="70" max="80" name="HWCOL'.
66: $part.'_'.$id.'" value="'.$coll.'" /><br />'.
67: &mt('(Enter maximum [_1] collaborators using username or username@domain, e.g. smithje or smithje@[_2].)',$ncol,$env{'user.domain'}).
68: '</label><br />';
69: $result .= &check_collaborators($ncol,$coll) if ($coll =~ /\w+/);
70: $result .='</td></tr>';
71: }
72: $result.=&Apache::inputtags::file_selector($part,$id,
73: $uploadedfiletypes,'both');
74: $result.='</table>';
75: }
76: return $result;
77: }
78:
79: sub end_essayresponse {
80: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
81: my $part = $Apache::inputtags::part;
82: my $id = $Apache::inputtags::response[-1];
83: my $increment = &Apache::response::repetition();
84: my $result;
85: if ( $target eq 'grade' ) {
86: my $collaborators = $env{'form.HWCOL'.$part.'_'.$id};
87: if ($collaborators =~ /[^\s]/) {
88: my $previous_list= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"},'<>&"');
89: $Apache::lonhomework::results{"resource.$part.$id.collaborators"}=$collaborators
90: if ($collaborators ne $previous_list);
91: }
92: if ( &Apache::response::submitted('scantron') ) {
93: $increment=&Apache::response::scored_response($part,$id);
94: } elsif ( &Apache::response::submitted() ) {
95: my $response = $env{'form.HWVAL_'.$id};
96: my $filename= $env{'form.HWFILE'.$part.'_'.$id.'.filename'};
97: my $portfiles = $env{'form.HWPORT'.$part.'_'.$id};
98: if (( $response =~ /[^\s]/) || ($filename =~ /[^\s]/) || ($portfiles =~ /[^\s]/)) {
99: my $award='DRAFT';
100: if ($env{'form.HWDRAFT'.$part.'_'.$id} eq 'yes') {
101: $award='SUBMITTED';
102: }
103: my $uploadedflag=0;
104: &file_submission($part,$id,'filename',\$award,\$uploadedflag);
105: &file_submission($part,$id,'portfiles',\$award,\$uploadedflag);
106: $Apache::lonhomework::results{"resource.$part.$id.submission"}=$response;
107: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$award;
108: my %previous=&Apache::response::check_for_previous($response,$part,$id);
109: unless ($uploadedflag) { &Apache::response::handle_previous(\%previous,$award); }
110: #
111: # Store with resource author for similarity testing
112: #
113: if ($award eq 'SUBMITTED') {
114: my ($symb,$crsid,$domain,$name)=
115: &Apache::lonxml::whichuser();
116: if ($crsid) {
117: my $akey=$name.'.'.$domain.'.'.$crsid;
118: my $essayurl=
119: &Apache::lonnet::declutter($ENV{'REQUEST_URI'});
120: my ($adom,$aname,$apath)=
121: ($essayurl=~/^(\w+)\/(\w+)\/(.*)$/);
122: $apath=&Apache::lonnet::escape($apath);
123: $apath=~s/\W/\_/gs;
124: &Apache::lonnet::put('nohist_essay_'.$apath,
125: { $akey => $response },$adom,$aname);
126: }
127: }
128: }
129: }
130: } elsif ($target eq 'edit') {
131: $result.=&Apache::edit::end_table();
132:
133: } elsif ($target eq 'tex'
134: && $Apache::lonhomework::type eq 'exam') {
135: $result .= &Apache::inputtags::exam_score_line($target);
136:
137: } elsif ($target eq 'answer') {
138: $result.=&Apache::response::answer_header($$tagstack[-1]);
139: $result.=&Apache::response::answer_part($$tagstack[-1],'');
140: $result.=&Apache::response::answer_footer($$tagstack[-1]);
141: }
142:
143: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
144: $target eq 'tex' || $target eq 'analyze') {
145: &Apache::lonxml::increment_counter($increment);
146: }
147: &Apache::response::end_response;
148:
149: return $result;
150: }
151:
152: sub file_submission {
153: my ($part,$id,$which,$award,$uploadedflag)=@_;
154: my $files;
155: my $jspart=$part;
156: $jspart=~s/\./_/g;
157: if ($which eq 'portfiles') { $files= $env{'form.HWPORT'.$jspart.'_'.$id}; }
158: if ($which eq 'filename') {
159: $files = $env{'form.HWFILE'.$jspart.'_'.$id.'.filename'};
160: }
161:
162: if ($files =~ /[^\s]/) {
163: $files =~s/,$//;
164: $Apache::lonhomework::results{"resource.$part.$id.$which"}=$files;
165:
166: my @submitted_files = ($files);
167: if ( $which eq 'portfiles' ) {
168: @submitted_files = split(/,/,$files);
169: }
170:
171: my $uploadedfiletypes= &Apache::lonnet::EXT("resource.$part".'_'."$id.uploadedfiletypes");
172: if ($uploadedfiletypes) {
173: $uploadedfiletypes=~s/[^\w\,]//g;
174: $uploadedfiletypes=','.$uploadedfiletypes.',';
175: foreach my $file (@submitted_files) {
176: my ($extension)=($file=~/\.(\w+)$/);
177: unless ($uploadedfiletypes=~/\,$extension\,/i) {
178: $$award='INVALID_FILETYPE';
179: }
180: }
181: }
182: if ($$award ne 'INVALID_FILETYPE' && ref($uploadedflag)) {
183: $$uploadedflag=1;
184: }
185: if ($$award ne 'INVALID_FILETYPE' && $which eq 'portfiles') {
186: my ($symb,$crsid,$domain,$name)=&Apache::lonxml::whichuser();
187: &Apache::lonnet::unmark_as_readonly($domain,$name,[$symb,$crsid]);
188: &Apache::lonnet::mark_as_readonly($domain,$name,\@submitted_files,[$symb,$crsid]);
189: &Apache::lonnet::clear_selected_files($name);
190: }
191: if ($$award ne 'INVALID_FILETYPE' && $which eq 'filename') {
192: $Apache::lonhomework::results{"resource.$part.$id.uploadedfile"}=
193: $files;
194: $Apache::lonhomework::results{"resource.$part.$id.uploadedurl"}=
195: &Apache::lonnet::userfileupload('HWFILE'.$jspart.'_'.$id,undef,
196: 'essayresponse');
197: }
198: } elsif ($which eq 'portfiles' &&
199: $Apache::lonhomework::history{"resource.$part.$id.$which"}) {
200: my ($symb,$crsid,$domain,$name)=&Apache::lonxml::whichuser();
201: &Apache::lonnet::unmark_as_readonly($domain,$name,[$symb,$crsid]);
202: $Apache::lonhomework::results{"resource.$part.$id.$which"}="";
203: }
204: }
205:
206: sub check_collaborators {
207: my ($ncol,$coll) = @_;
208: my %classlist=&Apache::lonnet::dump('classlist',
209: $env{'course.'.$env{'request.course.id'}.'.domain'},
210: $env{'course.'.$env{'request.course.id'}.'.num'});
211: my (@badcollaborators,$result);
212: my (@collaborators) = split(/\,?\s+/,$coll);
213: foreach (@collaborators) {
214: my $collaborator = $_;
215: if (/@/) {
216: $collaborator =~ s/@/:/;
217: } else {
218: $collaborator = $_.':'.$env{'user.domain'};
219: }
220: push @badcollaborators, $_ if (!grep /^$collaborator/i,keys %classlist);
221: }
222:
223: if (scalar(@badcollaborators)) {
224: $result = '<table border="0"><tr bgcolor="#ffbbbb"><td> The following user'.
225: (scalar(@badcollaborators) > 1 ? 's are' : ' is').' invalid: '.
226: join(', ',@badcollaborators).'. Please correct.</td></tr></table>';
227: }
228: my $toomany = scalar(@collaborators) - $ncol;
229: if ($toomany > 0) {
230: $result .= '<table border="0"><tr bgcolor="#ffbbbb"><td>'.
231: 'You have too many collaborators. Please remove '.$toomany.' collaborator'.
232: ($toomany > 1 ? 's' :'').'.</td></tr></table>';
233: }
234: return $result;
235: }
236:
237: 1;
238: __END__
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