1: # The LearningOnline Network with CAPA
2: # essay (ungraded) style responses
3: #
4: # $Id: essayresponse.pm,v 1.73 2006/08/01 14:04:32 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: use lib '/home/httpd/lib/perl/';
35: use LONCAPA;
36:
37:
38: BEGIN {
39: &Apache::lonxml::register('Apache::essayresponse',('essayresponse'));
40: }
41:
42: sub start_essayresponse {
43: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
44: my $result;
45: my $id = &Apache::response::start_response($parstack,$safeeval);
46: if ($target eq 'meta') {
47: $result=&Apache::response::meta_package_write('essayresponse');
48: } elsif ($target eq 'web' &&
49: $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
50: my $part= $Apache::inputtags::part;
51: my $ncol= &Apache::lonnet::EXT("resource.$part".'_'."$id.maxcollaborators");
52: my $coll= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"},'<>&"');
53: my $uploadedfiletypes= &Apache::lonnet::EXT("resource.$part".'_'."$id.uploadedfiletypes");
54: $uploadedfiletypes=~s/[^\w\,]//g;
55: $result='<br /><table border="1">';
56: $result.='<tr><td>'.
57: '<label>'.
58: '<input type="radio" name="HWDRAFT'.$part.'_'.$id.'" value="yes" checked="checked" /> '.
59: &mt('Submit entries below as answer to receive credit').
60: '</label> <br />'.
61: '<label>'.
62: '<input type="radio" name="HWDRAFT'.$part.'_'.$id.'" value="no" /> '.
63: &mt('Save entries below as a draft answer (not submitting them for credit yet)').
64: '</label>'.
65: ' </td></tr>';
66: if ($ncol > 0) {
67: $result .='<tr><td>'.'<label>'.
68: 'Collaborators: <input type="text" size="70" max="80" name="HWCOL'.
69: $part.'_'.$id.'" value="'.$coll.'" /><br />'.
70: &mt('(Enter maximum [_1] collaborators using username or username@domain, e.g. smithje or smithje@[_2].)',$ncol,$env{'user.domain'}).
71: '</label><br />';
72: $result .= &check_collaborators($ncol,$coll) if ($coll =~ /\w+/);
73: $result .='</td></tr>';
74: }
75: $result.=&Apache::inputtags::file_selector($part,$id,
76: $uploadedfiletypes,'both');
77: $result.='</table>';
78: }
79: return $result;
80: }
81:
82: sub end_essayresponse {
83: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
84: my $part = $Apache::inputtags::part;
85: my $id = $Apache::inputtags::response[-1];
86: my $increment = &Apache::response::repetition();
87: my $result;
88: if ( $target eq 'grade' ) {
89: my $collaborators = $env{'form.HWCOL'.$part.'_'.$id};
90: if ($collaborators =~ /[^\s]/) {
91: my $previous_list= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"},'<>&"');
92: $Apache::lonhomework::results{"resource.$part.$id.collaborators"}=$collaborators
93: if ($collaborators ne $previous_list);
94: }
95: if ( &Apache::response::submitted('scantron') ) {
96: $increment=&Apache::response::scored_response($part,$id);
97: } elsif ( &Apache::response::submitted() ) {
98: my $response = $env{'form.HWVAL_'.$id};
99: my $filename= $env{'form.HWFILE'.$part.'_'.$id.'.filename'};
100: my $portfiles = $env{'form.HWPORT'.$part.'_'.$id};
101: if (( $response =~ /[^\s]/) || ($filename =~ /[^\s]/) || ($portfiles =~ /[^\s]/)) {
102: my $award='DRAFT';
103: if ($env{'form.HWDRAFT'.$part.'_'.$id} eq 'yes') {
104: $award='SUBMITTED';
105: }
106: my $uploadedflag=0;
107: &file_submission($part,$id,'filename',\$award,\$uploadedflag);
108: &file_submission($part,$id,'portfiles',\$award,\$uploadedflag);
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,$id);
112: unless ($uploadedflag) { &Apache::response::handle_previous(\%previous,$award); }
113: #
114: # Store with resource author for similarity testing
115: #
116: if ($award eq 'SUBMITTED') {
117: my ($symb,$crsid,$domain,$name)=
118: &Apache::lonxml::whichuser();
119: if ($crsid) {
120: my $akey=$name.'.'.$domain.'.'.$crsid;
121: my $essayurl=
122: &Apache::lonnet::declutter($ENV{'REQUEST_URI'});
123: my ($adom,$aname,$apath)=
124: ($essayurl=~/^(\w+)\/(\w+)\/(.*)$/);
125: $apath=&escape($apath);
126: $apath=~s/\W/\_/gs;
127: &Apache::lonnet::put('nohist_essay_'.$apath,
128: { $akey => $response },$adom,$aname);
129: }
130: }
131: }
132: }
133: } elsif ($target eq 'edit') {
134: $result.=&Apache::edit::end_table();
135:
136: } elsif ($target eq 'tex'
137: && $Apache::lonhomework::type eq 'exam') {
138: $result .= &Apache::inputtags::exam_score_line($target);
139:
140: } elsif ($target eq 'answer') {
141: $result.=&Apache::response::answer_header($$tagstack[-1]);
142: $result.=&Apache::response::answer_part($$tagstack[-1],'');
143: $result.=&Apache::response::answer_footer($$tagstack[-1]);
144: }
145:
146: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
147: $target eq 'tex' || $target eq 'analyze') {
148: &Apache::lonxml::increment_counter($increment);
149: }
150: &Apache::response::end_response;
151:
152: return $result;
153: }
154:
155: sub file_submission {
156: my ($part,$id,$which,$award,$uploadedflag)=@_;
157: my $files;
158: my $jspart=$part;
159: $jspart=~s/\./_/g;
160: if ($which eq 'portfiles') { $files= $env{'form.HWPORT'.$jspart.'_'.$id}; }
161: if ($which eq 'filename') {
162: $files = $env{'form.HWFILE'.$jspart.'_'.$id.'.filename'};
163: }
164:
165: if ($files =~ /[^\s]/) {
166: $files =~s/,$//;
167: $Apache::lonhomework::results{"resource.$part.$id.$which"}=$files;
168:
169: my @submitted_files = ($files);
170: if ( $which eq 'portfiles' ) {
171: @submitted_files = split(/\s*,\s*/,$files);
172: }
173:
174: my $uploadedfiletypes= &Apache::lonnet::EXT("resource.$part".'_'."$id.uploadedfiletypes");
175: if ($uploadedfiletypes) {
176: $uploadedfiletypes=~s/[^\w\,]//g;
177: $uploadedfiletypes=','.$uploadedfiletypes.',';
178: foreach my $file (@submitted_files) {
179: my ($extension)=($file=~/\.(\w+)$/);
180: unless ($uploadedfiletypes=~/\,$extension\,/i) {
181: $$award='INVALID_FILETYPE';
182: }
183: }
184: }
185: if ($$award ne 'INVALID_FILETYPE' && ref($uploadedflag)) {
186: $$uploadedflag=1;
187: }
188: if ($$award ne 'INVALID_FILETYPE' && $which eq 'portfiles') {
189: my ($symb,$crsid,$domain,$name)=&Apache::lonxml::whichuser();
190: &Apache::lonnet::unmark_as_readonly($domain,$name,[$symb,$crsid]);
191: &Apache::lonnet::mark_as_readonly($domain,$name,\@submitted_files,[$symb,$crsid]);
192: &Apache::lonnet::clear_selected_files($name);
193: }
194: if ($$award ne 'INVALID_FILETYPE' && $which eq 'filename') {
195: $Apache::lonhomework::results{"resource.$part.$id.uploadedfile"}=
196: $files;
197: $Apache::lonhomework::results{"resource.$part.$id.uploadedurl"}=
198: &Apache::lonnet::userfileupload('HWFILE'.$jspart.'_'.$id,undef,
199: 'essayresponse');
200: }
201: } elsif ($which eq 'portfiles' &&
202: $Apache::lonhomework::history{"resource.$part.$id.$which"}) {
203: my ($symb,$crsid,$domain,$name)=&Apache::lonxml::whichuser();
204: &Apache::lonnet::unmark_as_readonly($domain,$name,[$symb,$crsid]);
205: $Apache::lonhomework::results{"resource.$part.$id.$which"}="";
206: }
207: }
208:
209: sub check_collaborators {
210: my ($ncol,$coll) = @_;
211: my %classlist=&Apache::lonnet::dump('classlist',
212: $env{'course.'.$env{'request.course.id'}.'.domain'},
213: $env{'course.'.$env{'request.course.id'}.'.num'});
214: my (@badcollaborators,$result);
215: my (@collaborators) = split(/\,?\s+/,$coll);
216: foreach (@collaborators) {
217: my $collaborator = $_;
218: if (/@/) {
219: $collaborator =~ s/@/:/;
220: } else {
221: $collaborator = $_.':'.$env{'user.domain'};
222: }
223: push @badcollaborators, $_ if (!grep /^$collaborator/i,keys %classlist);
224: }
225:
226: if (scalar(@badcollaborators)) {
227: $result = '<table border="0"><tr bgcolor="#ffbbbb"><td> The following user'.
228: (scalar(@badcollaborators) > 1 ? 's are' : ' is').' invalid: '.
229: join(', ',@badcollaborators).'. Please correct.</td></tr></table>';
230: }
231: my $toomany = scalar(@collaborators) - $ncol;
232: if ($toomany > 0) {
233: $result .= '<table border="0"><tr bgcolor="#ffbbbb"><td>'.
234: 'You have too many collaborators. Please remove '.$toomany.' collaborator'.
235: ($toomany > 1 ? 's' :'').'.</td></tr></table>';
236: }
237: return $result;
238: }
239:
240: 1;
241: __END__
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