Annotation of loncom/homework/essayresponse.pm, revision 1.107
1.1 albertel 1: # The LearningOnline Network with CAPA
2: # essay (ungraded) style responses
1.5 albertel 3: #
1.107 ! raeburn 4: # $Id: essayresponse.pm,v 1.106 2010/04/22 13:00:24 www Exp $
1.5 albertel 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: #
1.33 albertel 28:
1.1 albertel 29: package Apache::essayresponse;
30: use strict;
1.33 albertel 31: use Apache::lonxml();
1.62 albertel 32: use Apache::lonnet;
1.33 albertel 33: use Apache::lonlocal;
1.88 raeburn 34: use LONCAPA qw(:DEFAULT :match);
1.72 www 35:
1.1 albertel 36:
1.6 harris41 37: BEGIN {
1.10 ng 38: &Apache::lonxml::register('Apache::essayresponse',('essayresponse'));
1.1 albertel 39: }
40:
41: sub start_essayresponse {
1.10 ng 42: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
43: my $result;
1.14 albertel 44: my $id = &Apache::response::start_response($parstack,$safeeval);
45: if ($target eq 'meta') {
46: $result=&Apache::response::meta_package_write('essayresponse');
1.69 albertel 47: } elsif ($target eq 'web' &&
48: $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
1.10 ng 49: my $part= $Apache::inputtags::part;
50: my $ncol= &Apache::lonnet::EXT("resource.$part".'_'."$id.maxcollaborators");
1.34 albertel 51: my $coll= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"},'<>&"');
1.17 www 52: my $uploadedfiletypes= &Apache::lonnet::EXT("resource.$part".'_'."$id.uploadedfiletypes");
1.21 www 53: $uploadedfiletypes=~s/[^\w\,]//g;
1.93 raeburn 54: my $maxfilesize=&Apache::lonnet::EXT("resource.$part".'_'."$id.maxfilesize");
55: if (!defined($maxfilesize)) {
56: $maxfilesize = 10.0; #FIXME This should become a domain configuration
57: }
1.102 raeburn 58: if (($Apache::lonhomework::type eq 'survey') ||
59: ($Apache::lonhomework::type eq 'surveycred') ||
60: ($Apache::lonhomework::type eq 'anonsurvey') ||
61: ($Apache::lonhomework::type eq 'anonsurveycred')) {
1.75 albertel 62: $result.= '<input type="hidden" name="HWDRAFT'.$part.'_'.$id.'" value="yes" /> ';
63: }
64: $result.='<br /><table border="1">';
1.102 raeburn 65: if (($Apache::lonhomework::type ne 'survey') &&
66: ($Apache::lonhomework::type ne 'surveycred') &&
1.104 raeburn 67: ($Apache::lonhomework::type ne 'anonsurvey') &&
1.102 raeburn 68: ($Apache::lonhomework::type ne 'anonsurveycred')) {
1.75 albertel 69: $result.= '<tr><td>'.
70: '<label>'.
71: '<input type="radio" name="HWDRAFT'.$part.'_'.$id.'" value="yes" checked="checked" /> '.
72: &mt('Submit entries below as answer to receive credit').
73: '</label> <br />'.
74: '<label>'.
75: '<input type="radio" name="HWDRAFT'.$part.'_'.$id.'" value="no" /> '.
1.101 riegler 76: &mt('Save entries below (not submitted for credit yet)').
1.75 albertel 77: '</label>'.
78: '</td></tr>';
79: }
80:
1.10 ng 81: if ($ncol > 0) {
1.64 matthew 82: $result .='<tr><td>'.'<label>'.
1.88 raeburn 83: &mt('Collaborators:').' <input type="text" size="70" max="80" name="HWCOL'.
84: $part.'_'.$id.'" value="'.$coll.'" /><br />'.
85: &mt('(Enter a maximum of [quant,_1,collaborator] using username or username:domain, e.g. smithje or smithje:[_2].)',$ncol,$env{'user.domain'});
86: if ($ncol > 1) {
87: $result .= '<br />'.&mt('If entering more than one, use spaces to separate the collaborators.');
88: }
89: $result .= '</label><br />';
1.10 ng 90: $result .= &check_collaborators($ncol,$coll) if ($coll =~ /\w+/);
1.13 ng 91: $result .='</td></tr>';
1.10 ng 92: }
1.93 raeburn 93: my $filesfrom = 'both';
94: my $stuname = &Apache::lonnet::EXT('user.name');
95: my $studom = &Apache::lonnet::EXT('user.domain');
96: if (!&Apache::lonnet::usertools_access($stuname,$studom,'portfolio')) {
97: $filesfrom = 'uploadonly';
98: }
99: $result.=&Apache::inputtags::file_selector($part,$id,$uploadedfiletypes,
100: $filesfrom,undef,$maxfilesize);
1.22 www 101: $result.='</table>';
1.74 albertel 102: } elsif ($target eq 'web' &&
103: $Apache::inputtags::status[-1] ne 'CAN_ANSWER') {
104: my $part= $Apache::inputtags::part;
105: my @msgs;
106: if ($Apache::lonhomework::history{"resource.$part.$id.collaborators"} =~ /\S/) {
107: my $coll= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"},'<>&"');
1.106 www 108: $result .= '<td><i>'.&mt('Collaborated with [_1]',$coll).'</i></td>';
1.74 albertel 109: }
110:
111: my $file_submission =
112: &Apache::inputtags::show_past_file_submission($part,$id);
113: if ($file_submission) {
114: $result .= '<td>'.$file_submission.'</td>';
115: }
116:
117: my $port_submission =
118: &Apache::inputtags::show_past_portfile_submission($part,$id);
119: if ($port_submission) {
120: $result .= '<td>'.$port_submission.'</td>';
121: }
122:
123: if ($result ne '') {
124: $result =
125: '<table class="LC_pastsubmission"><tr>'.$result.
126: '</tr></table>';
127: }
1.10 ng 128: }
129: return $result;
1.1 albertel 130: }
131:
132: sub end_essayresponse {
1.10 ng 133: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.13 ng 134: my $part = $Apache::inputtags::part;
1.14 albertel 135: my $id = $Apache::inputtags::response[-1];
1.70 albertel 136: my $increment = &Apache::response::repetition();
1.15 albertel 137: my $result;
1.10 ng 138: if ( $target eq 'grade' ) {
1.106 www 139: # Deal with collaborators
140: my $collaborators = $env{'form.HWCOL'.$part.'_'.$id};
141: my $previous_list= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"},'<>&"');
142: if ($collaborators ne $previous_list) {
143: # &Apache::lonnet::logthis("New collaborators [$collaborators] [$previous_list]");
144: $Apache::lonhomework::results{"resource.$part.$id.collaborators"}=$collaborators;
145: }
146: # Scantron
1.58 albertel 147: if ( &Apache::response::submitted('scantron') ) {
1.31 albertel 148: $increment=&Apache::response::scored_response($part,$id);
1.58 albertel 149: } elsif ( &Apache::response::submitted() ) {
1.62 albertel 150: my $response = $env{'form.HWVAL_'.$id};
1.91 raeburn 151: my $filename = $env{'form.HWFILE'.$part.'_'.$id.'.filename'} ||
152: $env{'form.HWFILETOOBIG'.$part.'_'.$id};
1.62 albertel 153: my $portfiles = $env{'form.HWPORT'.$part.'_'.$id};
1.42 banghart 154: if (( $response =~ /[^\s]/) || ($filename =~ /[^\s]/) || ($portfiles =~ /[^\s]/)) {
1.61 albertel 155: my $award='DRAFT';
1.62 albertel 156: if ($env{'form.HWDRAFT'.$part.'_'.$id} eq 'yes') {
1.102 raeburn 157: if ($Apache::lonhomework::type eq 'anonsurvey') {
158: $award='ANONYMOUS';
159: } elsif ($Apache::lonhomework::type eq 'anonsurveycred') {
160: $award='ANONYMOUS_CREDIT';
161: } elsif ($Apache::lonhomework::type eq 'surveycred') {
162: $award='SUBMITTED_CREDIT';
163: } else {
164: $award='SUBMITTED';
165: }
1.14 albertel 166: }
1.22 www 167: my $uploadedflag=0;
1.91 raeburn 168: my $totalsize=0;
169: &file_submission($part,$id,'filename',\$award,\$uploadedflag,\$totalsize);
170: &file_submission($part,$id,'portfiles',\$award,\$uploadedflag,\$totalsize);
1.10 ng 171: $Apache::lonhomework::results{"resource.$part.$id.submission"}=$response;
1.14 albertel 172: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$award;
1.10 ng 173: my %previous=&Apache::response::check_for_previous($response,$part,$id);
1.107 ! raeburn 174: if ($uploadedflag) {
! 175: if ($award eq 'FILENAME_INUSE') {
! 176: delete($Apache::lonhomework::results{"resource.$id.tries"});
! 177: }
! 178: } else {
! 179: &Apache::response::handle_previous(\%previous,$award);
! 180: }
1.32 www 181: #
182: # Store with resource author for similarity testing
183: #
184: if ($award eq 'SUBMITTED') {
185: my ($symb,$crsid,$domain,$name)=
1.77 albertel 186: &Apache::lonnet::whichuser();
1.32 www 187: if ($crsid) {
1.83 albertel 188: my $akey=join('.',&escape($name),&escape($domain),
189: &escape($crsid));
1.32 www 190: my $essayurl=
191: &Apache::lonnet::declutter($ENV{'REQUEST_URI'});
192: my ($adom,$aname,$apath)=
1.80 albertel 193: ($essayurl=~/^($LONCAPA::domain_re)\/($LONCAPA::username_re)\/(.*)$/);
1.72 www 194: $apath=&escape($apath);
1.32 www 195: $apath=~s/\W/\_/gs;
196: &Apache::lonnet::put('nohist_essay_'.$apath,
197: { $akey => $response },$adom,$aname);
198: }
1.42 banghart 199: }
1.10 ng 200: }
1.42 banghart 201: }
1.15 albertel 202: } elsif ($target eq 'edit') {
203: $result.=&Apache::edit::end_table();
1.71 albertel 204:
205: } elsif ($target eq 'tex'
206: && $Apache::lonhomework::type eq 'exam') {
207: $result .= &Apache::inputtags::exam_score_line($target);
208:
1.70 albertel 209: } elsif ($target eq 'answer') {
1.78 albertel 210: $result.=&Apache::response::answer_header($$tagstack[-1]);
1.81 foxr 211: my $answer = &mt('Essay will be hand graded.');
1.78 albertel 212: $result.=&Apache::response::answer_part($$tagstack[-1],$answer,
213: {'no_verbatim' => 1});
214: $result.=&Apache::response::answer_footer($$tagstack[-1]);
1.10 ng 215: }
1.82 albertel 216: if ($target eq 'web') {
217: &Apache::response::setup_prior_tries_hash(\&format_prior_response,
218: ['portfiles',
219: 'uploadedurl']);
220: }
1.71 albertel 221:
1.27 albertel 222: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
223: $target eq 'tex' || $target eq 'analyze') {
1.86 foxr 224: &Apache::lonxml::increment_counter($increment, "$part.$id");
1.85 foxr 225:
226: if ($target eq 'analyze') {
1.87 raeburn 227: $Apache::lonhomework::analyze{"$part.$id.type"} = 'essayresponse';
1.96 raeburn 228: push (@{ $Apache::lonhomework::analyze{"parts"} },"$part.$id");
1.85 foxr 229: &Apache::lonhomework::set_bubble_lines();
230: }
1.27 albertel 231: }
1.10 ng 232: &Apache::response::end_response;
1.42 banghart 233:
1.15 albertel 234: return $result;
1.10 ng 235: }
236:
1.82 albertel 237: sub format_prior_response {
238: my ($mode,$answer,$other_data) = @_;
239: my $output;
240:
241: my (undef,undef,$udom,$uname) = &Apache::lonnet::whichuser();
242: my $port_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio/';
243:
244: my $file_list;
245:
246: foreach my $file (split(/\s*,\s*/,
247: $other_data->[0].','.$other_data->[1])) {
248: next if ($file!~/\S/);
249: if ($file !~ m{^/uploaded/}) { $file=$port_url.$file; }
250: $file=~s|/+|/|g;
251: &Apache::lonnet::allowuploaded('/adm/essayresponse',$file);
252: $file_list.='<li><span class="LC_nobreak"><a href="'.$file.'?rawmode=1" target="lonGRDs"><img src="'.
253: &Apache::loncommon::icon($file).'" alt="file icon" border="0" /> '.$file.
254: '</a></span></li>'."\n";
255: }
256: if ($file_list) {
257: $output.= &mt('Submitted Files').'<ul>'.$file_list.'</ul>';
258: }
259: if ($answer =~ /\S/) {
260: $output.='<p>'.&mt('Submitted text').
261: '<blockquote>'.$answer.'</blockquote></p>';
262: }
263:
264: return '<div class="LC_prior_essay">'.$output.'</div>';
265: }
266:
1.61 albertel 267: sub file_submission {
1.91 raeburn 268: my ($part,$id,$which,$award,$uploadedflag,$totalsize)=@_;
1.61 albertel 269: my $files;
1.67 albertel 270: my $jspart=$part;
271: $jspart=~s/\./_/g;
1.91 raeburn 272: if ($which eq 'portfiles') {
273: $files= $env{'form.HWPORT'.$jspart.'_'.$id};
274: } elsif ($which eq 'filename') {
275: if ($env{'form.HWFILETOOBIG'.$jspart.'_'.$id} ne '') {
276: $$award = 'EXCESS_FILESIZE';
277: return;
278: } else {
279: $files = $env{'form.HWFILE'.$jspart.'_'.$id.'.filename'};
280: }
1.61 albertel 281: }
1.107 ! raeburn 282: my ($symb,$crsid,$udom,$uname)=&Apache::lonnet::whichuser();
1.61 albertel 283: if ($files =~ /[^\s]/) {
284: $files =~s/,$//;
1.91 raeburn 285: my (@submitted_files,@acceptable_files,@accepted_files);
286: if ($which eq 'portfiles') {
287: @submitted_files = split(/\s*,\s*/,$files);
288: } else {
289: @submitted_files = ($files);
290: }
291: my $uploadedfiletypes=
292: &Apache::lonnet::EXT("resource.$part".'_'."$id.uploadedfiletypes");
1.99 raeburn 293: if ($uploadedfiletypes ne '') {
1.91 raeburn 294: $uploadedfiletypes=~s/[^\w\,]//g;
295: $uploadedfiletypes=','.$uploadedfiletypes.',';
296: foreach my $file (@submitted_files) {
297: my ($extension)=($file=~/\.(\w+)$/);
298: if ($uploadedfiletypes=~/\,\s*\Q$extension\E\s*\,/i) {
299: push(@acceptable_files,$file);
300: } else {
301: $$award='INVALID_FILETYPE';
302: if ($which eq 'filename') {
303: &delete_form_items($jspart,$id);
304: }
305: }
306: }
1.99 raeburn 307: } else {
1.100 raeburn 308: @acceptable_files = @submitted_files;
1.91 raeburn 309: }
310: my $maxfilesize=&Apache::lonnet::EXT("resource.$part".'_'."$id.maxfilesize");
311: if (!$maxfilesize) {
1.93 raeburn 312: $maxfilesize = 10.0; #FIXME This should become a domain configuration
1.91 raeburn 313: }
314: my %dirlist;
315: foreach my $file (@acceptable_files) {
316: if ($which eq 'filename') {
317: if (ref($totalsize)) {
318: $$totalsize += $env{'form.HWFILESIZE'.$jspart.'_'.$id};
319: }
320: } else {
1.97 raeburn 321: my ($path,$filename) = ($file =~ m{^(.*/)([^/]+)$});
1.91 raeburn 322: my $fullpath = '/userfiles/portfolio'.$path;
323: if (!exists($dirlist{$fullpath})) {
324: my @list = &Apache::lonnet::dirlist($fullpath,$udom,$uname,1);
1.97 raeburn 325: $dirlist{$fullpath} = \@list;
326: }
327: if (ref($dirlist{$fullpath}) eq 'ARRAY') {
328: foreach my $dir_line (@{$dirlist{$fullpath}}) {
1.91 raeburn 329: my ($fname,$dom,undef,$testdir,undef,undef,undef,undef,
330: $size,undef,$mtime,undef,undef,undef,$obs,undef) =
331: split(/\&/,$dir_line,16);
332: if ($filename eq $fname) {
333: my $mbsize = $size/(1024.0*1024.0);
334: if (ref($totalsize)) {
335: $$totalsize += $mbsize;
336: }
337: last;
338: }
339: }
340: }
341: }
342: if (ref($totalsize)) {
343: if ($$totalsize > $maxfilesize) {
344: $$award='EXCESS_FILESIZE';
345: if ($which eq 'filename') {
346: &delete_form_items($jspart,$id);
347: }
1.97 raeburn 348: last;
1.94 raeburn 349: } else {
350: push(@accepted_files,$file);
1.91 raeburn 351: }
352: } else {
353: push(@accepted_files,$file);
354: }
355: }
1.107 ! raeburn 356: if ($which eq 'portfiles') {
! 357: my @to_mark;
! 358: if ($Apache::lonhomework::results{"resource.$part.$id.portfiles"}) {
! 359: @to_mark = ($Apache::lonhomework::results{"resource.$part.$id.portfiles"});
! 360: }
! 361: if (@accepted_files) {
! 362: if ($Apache::lonhomework::results{"resource.$part.$id.portfiles"}) {
! 363: $Apache::lonhomework::results{"resource.$part.$id.$which"} .= ',';
! 364: }
! 365: $Apache::lonhomework::results{"resource.$part.$id.$which"}.=join(',',@accepted_files);
! 366: push(@to_mark,@accepted_files);
! 367: }
! 368: &Apache::lonnet::unmark_as_readonly($udom,$uname,[$symb,$crsid]);
! 369: &Apache::lonnet::mark_as_readonly($udom,$uname,\@to_mark,[$symb,$crsid]);
! 370: &Apache::lonnet::clear_selected_files($uname);
! 371: }
1.103 raeburn 372: if (($$award eq 'INVALID_FILETYPE') || ($$award eq 'EXCESS_FILESIZE')) {
1.107 ! raeburn 373: if ($which eq 'filename') {
! 374: delete($env{'form.HWFILE'.$jspart.'_'.$id});
! 375: }
1.91 raeburn 376: return;
377: }
378: if (ref($uploadedflag)) {
1.61 albertel 379: $$uploadedflag=1;
380: }
1.91 raeburn 381: if ($which eq 'filename') {
1.95 raeburn 382: my $cleanpart = $part;
383: $cleanpart =~ s/\W/_/g;
384: my $cleanid = $id;
385: $cleanid =~ s/\W/_/g;
1.107 ! raeburn 386: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
! 387: my %crsdesc = &Apache::lonnet::coursedescription($crsid);
! 388: my $turnindir;
! 389: my %userhash = &Apache::lonnet::userenvironment($udom,$uname,'turnindir');
! 390: $turnindir = $userhash{'turnindir'};
! 391: if ($turnindir eq '') {
! 392: $turnindir = &mt('turned in');
! 393: $turnindir =~ s/\W+/_/g;
! 394: my %newhash = (
! 395: 'turnindir' => $turnindir,
! 396: );
! 397: &Apache::lonnet::put('environment',\%newhash,$udom,$uname);
! 398: }
! 399: my $prefix = 'portfolio';
! 400: my $path = '/'.$turnindir.'/';
! 401: my $crsname = $crsdesc{'description'};
! 402: my $restitle=&Apache::lonnet::gettitle($symb);
! 403: foreach my $item ($crsname,$restitle) {
! 404: $item =~ s/\W+/_/g;
! 405: }
! 406: if ($crsname eq '') {
! 407: $crsname = $crsid;
! 408: }
! 409: if ($restitle eq '') {
! 410: $restitle = ($resurl =~ m{/[^/]+$});
! 411: if ($restitle eq '') {
! 412: $restitle = time;
1.95 raeburn 413: }
1.107 ! raeburn 414: }
! 415: my @pathitems;
! 416: my $navmap = Apache::lonnavmaps::navmap->new();
! 417: if (defined($navmap)) {
! 418: my $mapres = $navmap->getResourceByUrl($map);
! 419: if (ref($mapres)) {
! 420: my $pcslist = $mapres->map_hierarchy();
! 421: if ($pcslist ne '') {
! 422: foreach my $pc (split(/,/,$pcslist)) {
! 423: my $res = $navmap->getByMapPc($pc);
! 424: if (ref($res)) {
! 425: my $title = $res->compTitle();
! 426: $title =~ s/\W+/_/g;
! 427: if ($title ne '') {
! 428: push(@pathitems,$title);
! 429: }
! 430: }
! 431: }
! 432: }
! 433: my $maptitle = $mapres->compTitle();
! 434: $maptitle =~ s/\W+/_/g;
! 435: if ($maptitle ne '') {
! 436: push(@pathitems,$maptitle);
! 437: }
1.95 raeburn 438: } else {
1.107 ! raeburn 439: $$award = 'INTERNAL_ERROR';
! 440: }
1.95 raeburn 441: } else {
1.107 ! raeburn 442: $$award = 'INTERNAL_ERROR';
1.95 raeburn 443: }
1.107 ! raeburn 444: push(@pathitems,$restitle);
! 445: unshift(@pathitems,$crsname);
! 446: $path .= join('/',@pathitems);
! 447: my $formelement = 'HWFILE'.$jspart.'_'.$id;
! 448: my $fname = $env{'form.'.$formelement.'.filename'};
! 449: &Apache::lonnet::clean_filename($fname);
! 450: my $url = '/uploaded/'.$udom.'/'.$uname.'/'.$prefix.$path.'/'.$fname;
! 451: my @stat = &Apache::lonnet::stat_file($url);
! 452: if (@stat && $stat[0] ne 'no_such_dir') {
! 453: $$award = 'FILENAME_INUSE';
! 454: } else {
! 455: my ($mode,%allfiles,%codebase);
! 456: my $result = &Apache::lonnet::userfileupload($formelement,'',
! 457: $prefix.$path,$mode,\%allfiles,\%codebase);
! 458: if ($result =~ m{^/uploaded/}) {
! 459: $Apache::lonhomework::results{"resource.$part.$id.portfiles"} .= $path.'/'.$fname;
! 460: &Apache::lonnet::unmark_as_readonly($udom,$uname,[$symb,$crsid]);
! 461:
! 462: &Apache::lonnet::mark_as_readonly($udom,$uname,[$path.'/'.$fname],[$symb,$crsid]);
! 463: } else {
! 464: $$award = 'INTERNAL_ERROR';
1.95 raeburn 465: }
466: }
1.98 raeburn 467: delete($env{'form.HWFILE'.$jspart.'_'.$id});
1.61 albertel 468: }
469: }
470: }
471:
1.91 raeburn 472: sub delete_form_items {
473: my ($jspart,$id) = @_;
1.98 raeburn 474: delete($env{'form.HWFILE'.$jspart.'_'.$id.'.filename'});
475: delete($env{'form.HWFILE'.$jspart.'_'.$id.'.mimetype'});
476: delete($env{'form.HWFILE'.$jspart.'_'.$id});
1.91 raeburn 477: }
478:
1.10 ng 479: sub check_collaborators {
1.11 ng 480: my ($ncol,$coll) = @_;
1.10 ng 481: my %classlist=&Apache::lonnet::dump('classlist',
1.62 albertel 482: $env{'course.'.$env{'request.course.id'}.'.domain'},
483: $env{'course.'.$env{'request.course.id'}.'.num'});
1.10 ng 484: my (@badcollaborators,$result);
1.88 raeburn 485:
1.106 www 486: my (@collaborators) = split(/[,;\s]+/,$coll);
1.88 raeburn 487: foreach my $entry (@collaborators) {
488: my $collaborator;
489: if ($entry =~ /:/) {
490: $collaborator = $entry;
1.10 ng 491: } else {
1.88 raeburn 492: $collaborator = $entry.':'.$env{'user.domain'};
1.10 ng 493: }
1.88 raeburn 494: if ($collaborator !~ /^$match_username:$match_domain$/) {
495: if (!grep(/^\Q$entry\E$/,@badcollaborators)) {
496: push(@badcollaborators,$entry);
497: }
498: } elsif (!grep(/^\Q$collaborator\E$/i,keys(%classlist))) {
499: if (!grep(/^\Q$entry\E$/,@badcollaborators)) {
500: push(@badcollaborators,$entry);
501: }
502: }
1.10 ng 503: }
504:
1.88 raeburn 505: my $numbad = scalar(@badcollaborators);
506: if ($numbad) {
507: $result = '<table border="0"><tr bgcolor="#ffbbbb"><td>';
508: if ($numbad == 1) {
509: $result .= &mt('The following user is invalid:');
510: } else {
511: $result .= &mt('The following [_1] users are invalid:',$numbad);
512: }
513: $result .= ' '.join(', ',@badcollaborators).'. '.&mt('Please correct.').
514: '</td></tr></table>';
1.10 ng 515: }
516: my $toomany = scalar(@collaborators) - $ncol;
517: if ($toomany > 0) {
518: $result .= '<table border="0"><tr bgcolor="#ffbbbb"><td>'.
1.88 raeburn 519: &mt('You have too many collaborators.').' '.
520: &mt('Please remove [quant,_1,collaborator].',$toomany).
521: '</td></tr></table>';
1.10 ng 522: }
523: return $result;
1.1 albertel 524: }
1.2 albertel 525:
526: 1;
527: __END__
1.92 jms 528:
529:
530: =pod
531:
532: =head1 NAME
533:
1.106 www 534: Apache::essayresponse
1.92 jms 535:
536: =head1 SYNOPSIS
537:
538: Handler to evaluate essay (ungraded) style responses.
539:
540: This is part of the LearningOnline Network with CAPA project
541: described at http://www.lon-capa.org.
542:
543: =head1 SUBROUTINES
544:
545: =over
546:
547: =item start_essayresponse()
548:
549: =item end_essayresponse()
550:
551: =item format_prior_response()
552:
553: =item file_submission()
554:
555: =item delete_form_items()
556:
557: =item check_collaborators()
558:
559: =back
560:
1.93 raeburn 561: =cut
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