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homework /
essayresponse.pm
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Sun Nov 16 02:46:25 2008 UTC (15 years, 9 months ago) by
raeburn
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Bug 5719 Size limits for File Upload in Essay response.
- Max. cumulative size for submitted files applies to total for all files submitted to a particular essayresponse item. Default is 100 MB.
- In course context, &lonacc:get_posted_cgi() will now no longer add file contents to %env if size exceeds max. for item.
- Additional checks in essayresponse::file_submission() will assign award as "EXCESS_FILESIZE" if total of all files being submitted for sinle essayresponse item exceed max set via
PARM.
- Modification to $Apache::lonhomework::results{"resource.$part.$id.$which"} to now include a comma separated list of only those submitted files which passed both the filetype and size tests.
1: # The LearningOnline Network with CAPA
2: # essay (ungraded) style responses
3: #
4: # $Id: essayresponse.pm,v 1.91 2008/11/16 02:46:25 raeburn 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: =pod
30:
31: =head1 NAME
32:
33: Apache::easyresponse
34:
35: =head1 SYNOPSIS
36:
37: Handler to evaluate essay (ungraded) style responses.
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42: =cut
43:
44: package Apache::essayresponse;
45: use strict;
46: use Apache::lonxml();
47: use Apache::lonnet;
48: use Apache::lonlocal;
49: use LONCAPA qw(:DEFAULT :match);
50:
51:
52: BEGIN {
53: &Apache::lonxml::register('Apache::essayresponse',('essayresponse'));
54: }
55:
56: sub start_essayresponse {
57: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
58: my $result;
59: my $id = &Apache::response::start_response($parstack,$safeeval);
60: if ($target eq 'meta') {
61: $result=&Apache::response::meta_package_write('essayresponse');
62: } elsif ($target eq 'web' &&
63: $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
64: my $part= $Apache::inputtags::part;
65: my $ncol= &Apache::lonnet::EXT("resource.$part".'_'."$id.maxcollaborators");
66: my $coll= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"},'<>&"');
67: my $uploadedfiletypes= &Apache::lonnet::EXT("resource.$part".'_'."$id.uploadedfiletypes");
68: $uploadedfiletypes=~s/[^\w\,]//g;
69: if ( $Apache::lonhomework::type eq 'survey' ) {
70: $result.= '<input type="hidden" name="HWDRAFT'.$part.'_'.$id.'" value="yes" /> ';
71: }
72: $result.='<br /><table border="1">';
73: if ( $Apache::lonhomework::type ne 'survey' ) {
74: $result.= '<tr><td>'.
75: '<label>'.
76: '<input type="radio" name="HWDRAFT'.$part.'_'.$id.'" value="yes" checked="checked" /> '.
77: &mt('Submit entries below as answer to receive credit').
78: '</label> <br />'.
79: '<label>'.
80: '<input type="radio" name="HWDRAFT'.$part.'_'.$id.'" value="no" /> '.
81: &mt('Save entries below as a draft answer (not submitting them for credit yet)').
82: '</label>'.
83: '</td></tr>';
84: }
85:
86: if ($ncol > 0) {
87: $result .='<tr><td>'.'<label>'.
88: &mt('Collaborators:').' <input type="text" size="70" max="80" name="HWCOL'.
89: $part.'_'.$id.'" value="'.$coll.'" /><br />'.
90: &mt('(Enter a maximum of [quant,_1,collaborator] using username or username:domain, e.g. smithje or smithje:[_2].)',$ncol,$env{'user.domain'});
91: if ($ncol > 1) {
92: $result .= '<br />'.&mt('If entering more than one, use spaces to separate the collaborators.');
93: }
94: $result .= '</label><br />';
95: $result .= &check_collaborators($ncol,$coll) if ($coll =~ /\w+/);
96: $result .='</td></tr>';
97: }
98: $result.=&Apache::inputtags::file_selector($part,$id,
99: $uploadedfiletypes,'both');
100: $result.='</table>';
101: } elsif ($target eq 'web' &&
102: $Apache::inputtags::status[-1] ne 'CAN_ANSWER') {
103: my $part= $Apache::inputtags::part;
104: my @msgs;
105: if ($Apache::lonhomework::history{"resource.$part.$id.collaborators"} =~ /\S/) {
106: my $coll= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"},'<>&"');
107: $result .= '<td>'.&mt('Collaborated with [_1]',$coll).'</td>';
108: }
109:
110: my $file_submission =
111: &Apache::inputtags::show_past_file_submission($part,$id);
112: if ($file_submission) {
113: $result .= '<td>'.$file_submission.'</td>';
114: }
115:
116: my $port_submission =
117: &Apache::inputtags::show_past_portfile_submission($part,$id);
118: if ($port_submission) {
119: $result .= '<td>'.$port_submission.'</td>';
120: }
121:
122: if ($result ne '') {
123: $result =
124: '<table class="LC_pastsubmission"><tr>'.$result.
125: '</tr></table>';
126: }
127: }
128: return $result;
129: }
130:
131: sub end_essayresponse {
132: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
133: my $part = $Apache::inputtags::part;
134: my $id = $Apache::inputtags::response[-1];
135: my $increment = &Apache::response::repetition();
136: my $result;
137: if ( $target eq 'grade' ) {
138: my $collaborators = $env{'form.HWCOL'.$part.'_'.$id};
139: if ($collaborators =~ /[^\s]/) {
140: my $previous_list= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"},'<>&"');
141: $Apache::lonhomework::results{"resource.$part.$id.collaborators"}=$collaborators
142: if ($collaborators ne $previous_list);
143: }
144: if ( &Apache::response::submitted('scantron') ) {
145: $increment=&Apache::response::scored_response($part,$id);
146: } elsif ( &Apache::response::submitted() ) {
147: my $response = $env{'form.HWVAL_'.$id};
148: my $filename = $env{'form.HWFILE'.$part.'_'.$id.'.filename'} ||
149: $env{'form.HWFILETOOBIG'.$part.'_'.$id};
150: my $portfiles = $env{'form.HWPORT'.$part.'_'.$id};
151: if (( $response =~ /[^\s]/) || ($filename =~ /[^\s]/) || ($portfiles =~ /[^\s]/)) {
152: my $award='DRAFT';
153: if ($env{'form.HWDRAFT'.$part.'_'.$id} eq 'yes') {
154: $award='SUBMITTED';
155: }
156: my $uploadedflag=0;
157: my $totalsize=0;
158: &file_submission($part,$id,'filename',\$award,\$uploadedflag,\$totalsize);
159: &file_submission($part,$id,'portfiles',\$award,\$uploadedflag,\$totalsize);
160: $Apache::lonhomework::results{"resource.$part.$id.submission"}=$response;
161: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$award;
162: my %previous=&Apache::response::check_for_previous($response,$part,$id);
163: unless ($uploadedflag) { &Apache::response::handle_previous(\%previous,$award); }
164: #
165: # Store with resource author for similarity testing
166: #
167: if ($award eq 'SUBMITTED') {
168: my ($symb,$crsid,$domain,$name)=
169: &Apache::lonnet::whichuser();
170: if ($crsid) {
171: my $akey=join('.',&escape($name),&escape($domain),
172: &escape($crsid));
173: my $essayurl=
174: &Apache::lonnet::declutter($ENV{'REQUEST_URI'});
175: my ($adom,$aname,$apath)=
176: ($essayurl=~/^($LONCAPA::domain_re)\/($LONCAPA::username_re)\/(.*)$/);
177: $apath=&escape($apath);
178: $apath=~s/\W/\_/gs;
179: &Apache::lonnet::put('nohist_essay_'.$apath,
180: { $akey => $response },$adom,$aname);
181: }
182: }
183: }
184: }
185: } elsif ($target eq 'edit') {
186: $result.=&Apache::edit::end_table();
187:
188: } elsif ($target eq 'tex'
189: && $Apache::lonhomework::type eq 'exam') {
190: $result .= &Apache::inputtags::exam_score_line($target);
191:
192: } elsif ($target eq 'answer') {
193: $result.=&Apache::response::answer_header($$tagstack[-1]);
194: my $answer = &mt('Essay will be hand graded.');
195: $result.=&Apache::response::answer_part($$tagstack[-1],$answer,
196: {'no_verbatim' => 1});
197: $result.=&Apache::response::answer_footer($$tagstack[-1]);
198: }
199: if ($target eq 'web') {
200: &Apache::response::setup_prior_tries_hash(\&format_prior_response,
201: ['portfiles',
202: 'uploadedurl']);
203: }
204:
205: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
206: $target eq 'tex' || $target eq 'analyze') {
207: &Apache::lonxml::increment_counter($increment, "$part.$id");
208:
209: if ($target eq 'analyze') {
210: $Apache::lonhomework::analyze{"$part.$id.type"} = 'essayresponse';
211: &Apache::lonhomework::set_bubble_lines();
212: }
213: }
214: &Apache::response::end_response;
215:
216: return $result;
217: }
218:
219: sub format_prior_response {
220: my ($mode,$answer,$other_data) = @_;
221: my $output;
222:
223: my (undef,undef,$udom,$uname) = &Apache::lonnet::whichuser();
224: my $port_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio/';
225:
226: my $file_list;
227:
228: foreach my $file (split(/\s*,\s*/,
229: $other_data->[0].','.$other_data->[1])) {
230: next if ($file!~/\S/);
231: if ($file !~ m{^/uploaded/}) { $file=$port_url.$file; }
232: $file=~s|/+|/|g;
233: &Apache::lonnet::allowuploaded('/adm/essayresponse',$file);
234: $file_list.='<li><span class="LC_nobreak"><a href="'.$file.'?rawmode=1" target="lonGRDs"><img src="'.
235: &Apache::loncommon::icon($file).'" alt="file icon" border="0" /> '.$file.
236: '</a></span></li>'."\n";
237: }
238: if ($file_list) {
239: $output.= &mt('Submitted Files').'<ul>'.$file_list.'</ul>';
240: }
241: if ($answer =~ /\S/) {
242: $output.='<p>'.&mt('Submitted text').
243: '<blockquote>'.$answer.'</blockquote></p>';
244: }
245:
246: return '<div class="LC_prior_essay">'.$output.'</div>';
247: }
248:
249: sub file_submission {
250: my ($part,$id,$which,$award,$uploadedflag,$totalsize)=@_;
251: my $files;
252: my $jspart=$part;
253: $jspart=~s/\./_/g;
254: if ($which eq 'portfiles') {
255: $files= $env{'form.HWPORT'.$jspart.'_'.$id};
256: } elsif ($which eq 'filename') {
257: if ($env{'form.HWFILETOOBIG'.$jspart.'_'.$id} ne '') {
258: $$award = 'EXCESS_FILESIZE';
259: return;
260: } else {
261: $files = $env{'form.HWFILE'.$jspart.'_'.$id.'.filename'};
262: }
263: }
264: if ($files =~ /[^\s]/) {
265: $files =~s/,$//;
266: my (@submitted_files,@acceptable_files,@accepted_files);
267: if ($which eq 'portfiles') {
268: @submitted_files = split(/\s*,\s*/,$files);
269: } else {
270: @submitted_files = ($files);
271: }
272: my $uploadedfiletypes=
273: &Apache::lonnet::EXT("resource.$part".'_'."$id.uploadedfiletypes");
274: if ($uploadedfiletypes) {
275: $uploadedfiletypes=~s/[^\w\,]//g;
276: $uploadedfiletypes=','.$uploadedfiletypes.',';
277: foreach my $file (@submitted_files) {
278: my ($extension)=($file=~/\.(\w+)$/);
279: if ($uploadedfiletypes=~/\,\s*\Q$extension\E\s*\,/i) {
280: push(@acceptable_files,$file);
281: } else {
282: $$award='INVALID_FILETYPE';
283: if ($which eq 'filename') {
284: &delete_form_items($jspart,$id);
285: }
286: }
287: }
288: }
289: my $maxfilesize=&Apache::lonnet::EXT("resource.$part".'_'."$id.maxfilesize");
290: if (!$maxfilesize) {
291: $maxfilesize = 100.0; #FIXME This should become a domain configuration
292: }
293: my %dirlist;
294: foreach my $file (@acceptable_files) {
295: if ($which eq 'filename') {
296: if (ref($totalsize)) {
297: $$totalsize += $env{'form.HWFILESIZE'.$jspart.'_'.$id};
298: }
299: } else {
300: my ($symb,$crsid,$udom,$uname) = &Apache::lonnet::whichuser();
301: my ($path,$filename) = ($file =~ m{^(.+)/([^/]+)$});
302: my $fullpath = '/userfiles/portfolio'.$path;
303: if (!exists($dirlist{$fullpath})) {
304: my @list = &Apache::lonnet::dirlist($fullpath,$udom,$uname,1);
305: foreach my $dir_line (@list) {
306: my ($fname,$dom,undef,$testdir,undef,undef,undef,undef,
307: $size,undef,$mtime,undef,undef,undef,$obs,undef) =
308: split(/\&/,$dir_line,16);
309: if ($filename eq $fname) {
310: my $mbsize = $size/(1024.0*1024.0);
311: if (ref($totalsize)) {
312: $$totalsize += $mbsize;
313: }
314: last;
315: }
316: }
317: $dirlist{$fullpath} = \@list;
318: }
319: }
320: if (ref($totalsize)) {
321: if ($$totalsize > $maxfilesize) {
322: $$award='EXCESS_FILESIZE';
323: if ($which eq 'filename') {
324: &delete_form_items($jspart,$id);
325: }
326: }
327: } else {
328: push(@accepted_files,$file);
329: }
330: }
331: my $uploadedfiletypes= &Apache::lonnet::EXT("resource.$part".'_'."$id.uploadedfiletypes");
332: $Apache::lonhomework::results{"resource.$part.$id.$which"}=join(',',@accepted_files);
333: if (($$award eq 'INVALID_FILETYPE') || ($award eq 'EXCESS_FILESIZE')) {
334: return;
335: }
336: if (ref($uploadedflag)) {
337: $$uploadedflag=1;
338: }
339: if ($which eq 'portfiles') {
340: my ($symb,$crsid,$domain,$name)=&Apache::lonnet::whichuser();
341: &Apache::lonnet::unmark_as_readonly($domain,$name,[$symb,$crsid]);
342: &Apache::lonnet::mark_as_readonly($domain,$name,\@submitted_files,[$symb,$crsid]);
343: &Apache::lonnet::clear_selected_files($name);
344: }
345: if ($which eq 'filename') {
346: $Apache::lonhomework::results{"resource.$part.$id.uploadedfile"}=
347: $files;
348: $Apache::lonhomework::results{"resource.$part.$id.uploadedurl"}=
349: &Apache::lonnet::userfileupload('HWFILE'.$jspart.'_'.$id,undef,
350: 'essayresponse');
351: &Apache::lonnet::delenv($env{'form.HWFILE'.$jspart.'_'.$id});
352: }
353: } elsif ($which eq 'portfiles' &&
354: $Apache::lonhomework::history{"resource.$part.$id.$which"}) {
355: my ($symb,$crsid,$domain,$name)=&Apache::lonnet::whichuser();
356: &Apache::lonnet::unmark_as_readonly($domain,$name,[$symb,$crsid]);
357: $Apache::lonhomework::results{"resource.$part.$id.$which"}="";
358: }
359: }
360:
361: sub delete_form_items {
362: my ($jspart,$id) = @_;
363: &Apache::lonnet::delenv($env{'form.HWFILE'.$jspart.'_'.$id.'.filename'});
364: &Apache::lonnet::delenv($env{'form.HWFILE'.$jspart.'_'.$id.'.mimetype'});
365: &Apache::lonnet::delenv($env{'form.HWFILE'.$jspart.'_'.$id});
366: }
367:
368:
369: sub check_collaborators {
370: my ($ncol,$coll) = @_;
371: my %classlist=&Apache::lonnet::dump('classlist',
372: $env{'course.'.$env{'request.course.id'}.'.domain'},
373: $env{'course.'.$env{'request.course.id'}.'.num'});
374: my (@badcollaborators,$result);
375:
376: my (@collaborators) = split(/,?\s+/,$coll);
377: foreach my $entry (@collaborators) {
378: my $collaborator;
379: if ($entry =~ /:/) {
380: $collaborator = $entry;
381: } else {
382: $collaborator = $entry.':'.$env{'user.domain'};
383: }
384: if ($collaborator !~ /^$match_username:$match_domain$/) {
385: if (!grep(/^\Q$entry\E$/,@badcollaborators)) {
386: push(@badcollaborators,$entry);
387: }
388: } elsif (!grep(/^\Q$collaborator\E$/i,keys(%classlist))) {
389: if (!grep(/^\Q$entry\E$/,@badcollaborators)) {
390: push(@badcollaborators,$entry);
391: }
392: }
393: }
394:
395: my $numbad = scalar(@badcollaborators);
396: if ($numbad) {
397: $result = '<table border="0"><tr bgcolor="#ffbbbb"><td>';
398: if ($numbad == 1) {
399: $result .= &mt('The following user is invalid:');
400: } else {
401: $result .= &mt('The following [_1] users are invalid:',$numbad);
402: }
403: $result .= ' '.join(', ',@badcollaborators).'. '.&mt('Please correct.').
404: '</td></tr></table>';
405: }
406: my $toomany = scalar(@collaborators) - $ncol;
407: if ($toomany > 0) {
408: $result .= '<table border="0"><tr bgcolor="#ffbbbb"><td>'.
409: &mt('You have too many collaborators.').' '.
410: &mt('Please remove [quant,_1,collaborator].',$toomany).
411: '</td></tr></table>';
412: }
413: return $result;
414: }
415:
416: 1;
417: __END__
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