1: # The LearningOnline Network with CAPA
2: # essay (ungraded) style responses
3: #
4: # $Id: essayresponse.pm,v 1.61 2005/04/05 15:38:57 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: my $part= $Apache::inputtags::part;
47: my $ncol= &Apache::lonnet::EXT("resource.$part".'_'."$id.maxcollaborators");
48: my $coll= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"},'<>&"');
49: my $uploadedfiletypes= &Apache::lonnet::EXT("resource.$part".'_'."$id.uploadedfiletypes");
50: $uploadedfiletypes=~s/[^\w\,]//g;
51: $result='<br /><table border="1">';
52: $result.='<tr><td>'.
53: '<input type="radio" name="HWDRAFT'.$part.'_'.$id.'" value="yes" checked="checked" /> '.
54: &mt('Submit entries below as answer to receive credit').' <br />'.
55: '<input type="radio" name="HWDRAFT'.$part.'_'.$id.'" value="no" /> '.
56: &mt('Save entries below as a draft answer (not submitting them for credit yet)').
57: ' </td></tr>';
58: if ($ncol > 0) {
59: $result .='<tr><td>'.
60: 'Collaborators: <input type="text" size="70" max="80" name="HWCOL'.
61: $part.'_'.$id.'" value="'.$coll.'" /><br />'.
62: &mt('(Enter maximum [_1] collaborators using username or username@domain, e.g. smithje or smithje@[_2].)',$ncol,$ENV{'user.domain'}).'<br />';
63: $result .= &check_collaborators($ncol,$coll) if ($coll =~ /\w+/);
64: $result .='</td></tr>';
65: }
66: $result.=&Apache::inputtags::file_selector($part,$id,
67: $uploadedfiletypes,'both');
68: $result.='</table>';
69: }
70: return $result;
71: }
72:
73: sub end_essayresponse {
74: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
75: my $part = $Apache::inputtags::part;
76: my $id = $Apache::inputtags::response[-1];
77: my $increment = 1;
78: my $result;
79: if ( $target eq 'grade' ) {
80: my $collaborators = $ENV{'form.HWCOL'.$part.'_'.$id};
81: if ($collaborators =~ /[^\s]/) {
82: my $previous_list= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"},'<>&"');
83: $Apache::lonhomework::results{"resource.$part.$id.collaborators"}=$collaborators
84: if ($collaborators ne $previous_list);
85: }
86: if ( &Apache::response::submitted('scantron') ) {
87: $increment=&Apache::response::scored_response($part,$id);
88: } elsif ( &Apache::response::submitted() ) {
89: my $response = $ENV{'form.HWVAL_'.$id};
90: my $filename= $ENV{'form.HWFILE'.$part.'_'.$id.'.filename'};
91: my $portfiles = $ENV{'form.HWPORT'.$part.'_'.$id};
92: if (( $response =~ /[^\s]/) || ($filename =~ /[^\s]/) || ($portfiles =~ /[^\s]/)) {
93: my $award='DRAFT';
94: if ($ENV{'form.HWDRAFT'.$part.'_'.$id} eq 'yes') {
95: $award='SUBMITTED';
96: }
97: my $uploadedflag=0;
98: &file_submission($part,$id,'filename',$award,\$uploadedflag);
99: &file_submission($part,$id,'portfiles',$award,\$uploadedflag);
100: $Apache::lonhomework::results{"resource.$part.$id.submission"}=$response;
101: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$award;
102: my %previous=&Apache::response::check_for_previous($response,$part,$id);
103: unless ($uploadedflag) { &Apache::response::handle_previous(\%previous,$award); }
104: #
105: # Store with resource author for similarity testing
106: #
107: if ($award eq 'SUBMITTED') {
108: my ($symb,$crsid,$domain,$name)=
109: &Apache::lonxml::whichuser();
110: if ($crsid) {
111: my $akey=$name.'.'.$domain.'.'.$crsid;
112: my $essayurl=
113: &Apache::lonnet::declutter($ENV{'REQUEST_URI'});
114: my ($adom,$aname,$apath)=
115: ($essayurl=~/^(\w+)\/(\w+)\/(.*)$/);
116: $apath=&Apache::lonnet::escape($apath);
117: $apath=~s/\W/\_/gs;
118: &Apache::lonnet::put('nohist_essay_'.$apath,
119: { $akey => $response },$adom,$aname);
120: }
121: }
122: }
123: }
124: } elsif ($target eq 'edit') {
125: $result.=&Apache::edit::end_table();
126: } elsif ($target eq 'tex') {
127: if ($Apache::lonhomework::type eq 'exam') {
128: my $repetition=&Apache::response::repetition();
129: $result.='\begin{enumerate}';
130: if ($ENV{'request.state'} eq "construct" ) {$result.='\item[\strut]';}
131: for (my $i=0;$i<$repetition;$i++) {
132: $result.='\item[\textbf{'.($Apache::lonxml::counter+$i).
133: '}.]\textit{'.&mt('Leave blank on scoring form').
134: '}\vskip 0 mm';
135: }
136: $result.= '\end{enumerate}';
137: $increment=$repetition;
138: }
139: }
140: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
141: $target eq 'tex' || $target eq 'analyze') {
142: &Apache::lonxml::increment_counter($increment);
143: }
144: &Apache::response::end_response;
145:
146: return $result;
147: }
148:
149: sub file_submission {
150: my ($part,$id,$which,$award,$uploadedflag)=@_;
151: my $files;
152: if ($which eq 'portfiles') { $files= $ENV{'form.HWPORT'.$part.'_'.$id}; }
153: if ($which eq 'filename') {
154: $files = $ENV{'form.HWFILE'.$part.'_'.$id.'.filename'};
155: }
156:
157: if ($files =~ /[^\s]/) {
158: $files =~s/,$//;
159: $Apache::lonhomework::results{"resource.$part.$id.$which"}=$files;
160: my @submitted_files = split(/,/,$files);
161: my $uploadedfiletypes= &Apache::lonnet::EXT("resource.$part".'_'."$id.uploadedfiletypes");
162: $uploadedfiletypes=~s/[^\w\,]//g;
163: $uploadedfiletypes=','.$uploadedfiletypes.',';
164: foreach my $file (@submitted_files) {
165: my ($extension)=($file=~/\.(\w+)$/);
166: unless ($uploadedfiletypes=~/\,$extension\,/i) {
167: $award='INVALID_FILETYPE';
168: }
169: }
170: if ($award ne 'INVALID_FILETYPE' && ref($uploadedflag)) {
171: $$uploadedflag=1;
172: }
173: if ($award ne 'INVALID_FILETYPE' && $which eq 'portfiles') {
174: my ($symb,$crsid,$domain,$name)=&Apache::lonxml::whichuser();
175: &Apache::lonnet::unmark_as_readonly($domain,$name,$symb.$crsid);
176: &Apache::lonnet::mark_as_readonly($domain,$name,\@submitted_files,$symb.$crsid);
177: &Apache::lonnet::clear_selected_files($name);
178: }
179: if ($award ne 'INVALID_FILETYPE' && $which eq 'filename') {
180: $Apache::lonhomework::results{"resource.$part.$id.uploadedfile"}=
181: $files;
182: $Apache::lonhomework::results{"resource.$part.$id.uploadedurl"}=
183: &Apache::lonnet::userfileupload('HWFILE'.$part.'_'.$id,undef,
184: 'essayresponse');
185: }
186: } elsif ($which eq 'portfiles' &&
187: $Apache::lonhomework::history{"resource.$part.$id.$which"}) {
188: my ($symb,$crsid,$domain,$name)=&Apache::lonxml::whichuser();
189: &Apache::lonnet::unmark_as_readonly($domain,$name,$symb.$crsid);
190: $Apache::lonhomework::results{"resource.$part.$id.$which"}="";
191: }
192: }
193:
194: sub check_collaborators {
195: my ($ncol,$coll) = @_;
196: my %classlist=&Apache::lonnet::dump('classlist',
197: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
198: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
199: my (@badcollaborators,$result);
200: my (@collaborators) = split(/\,?\s+/,$coll);
201: foreach (@collaborators) {
202: my $collaborator = $_;
203: if (/@/) {
204: $collaborator =~ s/@/:/;
205: } else {
206: $collaborator = $_.':'.$ENV{'user.domain'};
207: }
208: push @badcollaborators, $_ if (!grep /^$collaborator/i,keys %classlist);
209: }
210:
211: if (scalar(@badcollaborators)) {
212: $result = '<table border="0"><tr bgcolor="#ffbbbb"><td> The following user'.
213: (scalar(@badcollaborators) > 1 ? 's are' : ' is').' invalid: '.
214: join(', ',@badcollaborators).'. Please correct.</td></tr></table>';
215: }
216: my $toomany = scalar(@collaborators) - $ncol;
217: if ($toomany > 0) {
218: $result .= '<table border="0"><tr bgcolor="#ffbbbb"><td>'.
219: 'You have too many collaborators. Please remove '.$toomany.' collaborator'.
220: ($toomany > 1 ? 's' :'').'.</td></tr></table>';
221: }
222: return $result;
223: }
224:
225: 1;
226: __END__
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