File:  [LON-CAPA] / loncom / homework / essayresponse.pm
Revision 1.101.10.1: download - view: text, annotated - select for diffs
Sun Dec 6 20:41:40 2009 UTC (14 years, 5 months ago) by raeburn
Branches: GCI_3
Diff to branchpoint 1.101: preferred, unified
- Customization for GCI_3.

    1: # The LearningOnline Network with CAPA
    2: # essay (ungraded) style responses
    3: #
    4: # $Id: essayresponse.pm,v 1.101.10.1 2009/12/06 20:41:40 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: package Apache::essayresponse;
   30: use strict;
   31: use Apache::lonxml();
   32: use Apache::lonnet;
   33: use Apache::lonlocal;
   34: use LONCAPA qw(:DEFAULT :match);
   35:  
   36: 
   37: BEGIN {
   38:     &Apache::lonxml::register('Apache::essayresponse',('essayresponse'));
   39: }
   40: 
   41: sub start_essayresponse {
   42:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   43:     my $result;
   44:     my $id = &Apache::response::start_response($parstack,$safeeval);
   45:     if ($target eq 'meta') {
   46: 	$result=&Apache::response::meta_package_write('essayresponse');
   47:     } elsif ($target eq 'web' &&
   48: 	     $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
   49: 	my $part= $Apache::inputtags::part;
   50: 	my $ncol= &Apache::lonnet::EXT("resource.$part".'_'."$id.maxcollaborators");
   51: 	my $coll= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"},'<>&"');
   52: 	my $uploadedfiletypes= &Apache::lonnet::EXT("resource.$part".'_'."$id.uploadedfiletypes");
   53:         $uploadedfiletypes=~s/[^\w\,]//g;
   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:         }
   58: 	if ( $Apache::lonhomework::type eq 'survey' ) {
   59: 	    $result.= '<input type="hidden" name="HWDRAFT'.$part.'_'.$id.'" value="yes" /> ';
   60: 	}
   61: 	$result.='<br /><table border="1">';
   62: 	if ( $Apache::lonhomework::type ne 'survey' ) {
   63:             if ($env{'request.uri'} eq '/res/gci/gci/internal/submission.problem') {
   64:                 $result .= '<input type="hidden" name="HWDRAFT'.$part.'_'.$id.'" value="yes" />';
   65:             } else {
   66: 	      $result.= '<tr><td>'.
   67: 		'<label>'.
   68: 		'<input type="radio" name="HWDRAFT'.$part.'_'.$id.'" value="yes" checked="checked" /> '.
   69: 		&mt('Submit entries below as answer to receive credit').
   70: 		'</label> <br />'.
   71: 		'<label>'.
   72: 		'<input type="radio" name="HWDRAFT'.$part.'_'.$id.'" value="no" /> '.
   73: 		&mt('Save entries below (not submitted for credit yet)').
   74: 		'</label>'.
   75: 		'</td></tr>';
   76:             }
   77: 	}
   78: 
   79: 	if ($ncol > 0) {
   80: 	    $result .='<tr><td>'.'<label>'.
   81: 		      &mt('Collaborators:').' <input type="text" size="70" max="80" name="HWCOL'.
   82: 		      $part.'_'.$id.'" value="'.$coll.'" /><br />'.
   83: 		      &mt('(Enter a maximum of [quant,_1,collaborator] using username or username:domain, e.g. smithje or smithje:[_2].)',$ncol,$env{'user.domain'});
   84:             if ($ncol > 1) {
   85:                 $result .= '<br />'.&mt('If entering more than one, use spaces to separate the collaborators.');
   86:             }
   87:             $result .= '</label><br />';
   88: 	    $result .= &check_collaborators($ncol,$coll) if ($coll =~ /\w+/);
   89: 	    $result .='</td></tr>';
   90: 	}
   91:         my $filesfrom = 'both';
   92:         my $stuname = &Apache::lonnet::EXT('user.name');
   93:         my $studom = &Apache::lonnet::EXT('user.domain');
   94:         if (!&Apache::lonnet::usertools_access($stuname,$studom,'portfolio')) {
   95:             $filesfrom = 'uploadonly';
   96:         }
   97: 	$result.=&Apache::inputtags::file_selector($part,$id,$uploadedfiletypes,
   98: 						   $filesfrom,undef,$maxfilesize);
   99:         $result.='</table>';
  100:     } elsif ($target eq 'web' &&
  101: 	     $Apache::inputtags::status[-1] ne 'CAN_ANSWER') {
  102: 	my $part= $Apache::inputtags::part;
  103: 	my @msgs;
  104: 	if ($Apache::lonhomework::history{"resource.$part.$id.collaborators"} =~ /\S/) {
  105: 	    my $coll= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"},'<>&"');
  106: 	    $result .= '<td>'.&mt('Collaborated with [_1]',$coll).'</td>';
  107: 	}
  108: 
  109: 	my $file_submission = 
  110: 	    &Apache::inputtags::show_past_file_submission($part,$id);
  111: 	if ($file_submission) {
  112: 	    $result .= '<td>'.$file_submission.'</td>';
  113: 	}
  114: 
  115: 	my $port_submission = 
  116: 	    &Apache::inputtags::show_past_portfile_submission($part,$id);
  117: 	if ($port_submission) {
  118: 	    $result .= '<td>'.$port_submission.'</td>';
  119: 	}
  120: 
  121: 	if ($result ne '') {
  122: 	    $result = 
  123: 		'<table class="LC_pastsubmission"><tr>'.$result.
  124: 		'</tr></table>';
  125: 	}
  126:     }
  127:     return $result;
  128: }
  129: 
  130: sub end_essayresponse {
  131:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  132:     my $part          = $Apache::inputtags::part;
  133:     my $id            = $Apache::inputtags::response[-1];
  134:     my $increment     = &Apache::response::repetition();
  135:     my $result;
  136:     if ( $target eq 'grade' ) {
  137: 	my $collaborators = $env{'form.HWCOL'.$part.'_'.$id};	
  138: 	if ($collaborators =~ /[^\s]/) {
  139: 	    my $previous_list= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"},'<>&"');
  140: 	    $Apache::lonhomework::results{"resource.$part.$id.collaborators"}=$collaborators
  141: 		if ($collaborators ne $previous_list);
  142: 	}
  143: 	if (  &Apache::response::submitted('scantron') ) {
  144: 	    $increment=&Apache::response::scored_response($part,$id);
  145: 	} elsif ( &Apache::response::submitted() ) {
  146: 	    my $response      = $env{'form.HWVAL_'.$id};
  147:             my $filename = $env{'form.HWFILE'.$part.'_'.$id.'.filename'} || 
  148:                            $env{'form.HWFILETOOBIG'.$part.'_'.$id};
  149:             my $portfiles = $env{'form.HWPORT'.$part.'_'.$id};
  150: 	    if (( $response =~ /[^\s]/) || ($filename =~ /[^\s]/) || ($portfiles =~ /[^\s]/)) {
  151:  		my $award='DRAFT';
  152:         	if ($env{'form.HWDRAFT'.$part.'_'.$id} eq 'yes') {
  153: 		    $award='SUBMITTED';
  154: 		}
  155:                 my $uploadedflag=0;
  156:                 my $totalsize=0;
  157: 		&file_submission($part,$id,'filename',\$award,\$uploadedflag,\$totalsize);
  158: 		&file_submission($part,$id,'portfiles',\$award,\$uploadedflag,\$totalsize);
  159: 		$Apache::lonhomework::results{"resource.$part.$id.submission"}=$response;
  160: 		$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$award;
  161: 		my %previous=&Apache::response::check_for_previous($response,$part,$id);
  162: 		unless ($uploadedflag) { &Apache::response::handle_previous(\%previous,$award); }
  163: #
  164: # Store with resource author for similarity testing
  165: #
  166:                 if ($award eq 'SUBMITTED') {
  167: 		    my ($symb,$crsid,$domain,$name)=
  168: 			&Apache::lonnet::whichuser();
  169: 		    if ($crsid) {
  170: 			my $akey=join('.',&escape($name),&escape($domain),
  171: 				      &escape($crsid));
  172: 			my $essayurl=
  173: 			    &Apache::lonnet::declutter($ENV{'REQUEST_URI'});
  174: 			my ($adom,$aname,$apath)=
  175: 			    ($essayurl=~/^($LONCAPA::domain_re)\/($LONCAPA::username_re)\/(.*)$/);
  176:                         $apath=&escape($apath);
  177: 			$apath=~s/\W/\_/gs;
  178: 			&Apache::lonnet::put('nohist_essay_'.$apath,
  179: 					 { $akey => $response },$adom,$aname);
  180: 		    }
  181:                 }
  182: 	    }
  183: 	} 
  184:     } elsif ($target eq 'edit') {
  185: 	$result.=&Apache::edit::end_table();
  186: 
  187:     } elsif ($target eq 'tex'
  188: 	     && $Apache::lonhomework::type eq 'exam') {
  189: 	$result .= &Apache::inputtags::exam_score_line($target);
  190: 
  191:     } elsif ($target eq 'answer') {
  192: 	$result.=&Apache::response::answer_header($$tagstack[-1]);
  193: 	my $answer = &mt('Essay will be hand graded.');
  194: 	$result.=&Apache::response::answer_part($$tagstack[-1],$answer,
  195: 						{'no_verbatim' => 1});
  196: 	$result.=&Apache::response::answer_footer($$tagstack[-1]);
  197:     }
  198:     if ($target eq 'web') {
  199: 	&Apache::response::setup_prior_tries_hash(\&format_prior_response,
  200: 						  ['portfiles',
  201: 						   'uploadedurl']);
  202:     }
  203: 
  204:     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
  205: 	$target eq 'tex' || $target eq 'analyze') {
  206: 	&Apache::lonxml::increment_counter($increment, "$part.$id");
  207: 
  208: 	if ($target eq 'analyze') {
  209:             $Apache::lonhomework::analyze{"$part.$id.type"} = 'essayresponse';
  210:             push (@{ $Apache::lonhomework::analyze{"parts"} },"$part.$id");
  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 ne '') {
  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:                     $$award='INVALID_FILETYPE';
  283:                     if ($which eq 'filename') {
  284:                         &delete_form_items($jspart,$id);
  285:                     }
  286:                 }
  287:             }
  288:         } else {
  289:             @acceptable_files = @submitted_files;
  290:         }
  291:         my $maxfilesize=&Apache::lonnet::EXT("resource.$part".'_'."$id.maxfilesize");
  292:         if (!$maxfilesize) {
  293:             $maxfilesize = 10.0; #FIXME This should become a domain configuration
  294:         }
  295:         my %dirlist;
  296:         foreach my $file (@acceptable_files) {
  297:             if ($which eq 'filename') {
  298:                 if (ref($totalsize)) {
  299:                     $$totalsize += $env{'form.HWFILESIZE'.$jspart.'_'.$id};
  300:                 }
  301:             } else {
  302:                 my ($symb,$crsid,$udom,$uname) = &Apache::lonnet::whichuser();
  303:                 my ($path,$filename) = ($file =~ m{^(.*/)([^/]+)$});
  304:                 my $fullpath = '/userfiles/portfolio'.$path;
  305:                 if (!exists($dirlist{$fullpath})) {
  306:                     my @list = &Apache::lonnet::dirlist($fullpath,$udom,$uname,1);
  307:                     $dirlist{$fullpath} = \@list;
  308:                 }
  309:                 if (ref($dirlist{$fullpath}) eq 'ARRAY') {
  310:                     foreach my $dir_line (@{$dirlist{$fullpath}}) {
  311:                         my ($fname,$dom,undef,$testdir,undef,undef,undef,undef,
  312:                             $size,undef,$mtime,undef,undef,undef,$obs,undef) = 
  313:                         split(/\&/,$dir_line,16);
  314:                         if ($filename eq $fname) {
  315:                             my $mbsize = $size/(1024.0*1024.0);
  316:                             if (ref($totalsize)) {
  317:                                 $$totalsize += $mbsize;
  318:                             }
  319:                             last;
  320:                         }
  321:                     }
  322:                 }
  323:             }
  324:             if (ref($totalsize)) {
  325:                 if ($$totalsize > $maxfilesize) {
  326:                     $$award='EXCESS_FILESIZE';
  327:                     if ($which eq 'filename') {
  328:                         &delete_form_items($jspart,$id);
  329:                     }
  330:                     last;
  331:                 } else {
  332:                     push(@accepted_files,$file);
  333:                 }
  334:             } else {
  335:                 push(@accepted_files,$file);
  336:             }
  337:         }
  338:         $Apache::lonhomework::results{"resource.$part.$id.$which"}=join(',',@accepted_files);
  339:         if (($$award eq 'INVALID_FILETYPE') || ($award eq 'EXCESS_FILESIZE')) {
  340:             return;
  341:         }
  342: 	if (ref($uploadedflag)) {
  343: 	    $$uploadedflag=1;
  344: 	}
  345:         my ($symb,$crsid,$domain,$name)=&Apache::lonnet::whichuser();
  346: 	if ($which eq 'portfiles') {
  347: 	    &Apache::lonnet::unmark_as_readonly($domain,$name,[$symb,$crsid]);
  348: 	    &Apache::lonnet::mark_as_readonly($domain,$name,\@submitted_files,[$symb,$crsid]);
  349: 	    &Apache::lonnet::clear_selected_files($name);
  350: 	}
  351: 	if ($which eq 'filename') {
  352: 	    $Apache::lonhomework::results{"resource.$part.$id.uploadedfile"}=
  353: 		$files;
  354:             my $cleanpart = $part;
  355:             $cleanpart =~ s/\W/_/g;
  356:             my $cleanid = $id;
  357:             $cleanid =~ s/\W/_/g;
  358:             my ($map,$resid,$res)=&Apache::lonnet::decode_symb($symb);
  359:             my $container;
  360:             if ($map =~ /^uploaded/) {
  361:                 (my $prefix,$container) = ($map =~ m{^uploaded/[^/]+/[^/]+/(default|supplemental)_?([^.]*)\.(?:sequence|page)$});
  362:                 if (length($container) > 10) {
  363:                     $container = substr($container,-10,10);
  364:                 }
  365:                 if ($container ne '') {
  366:                     $container = $prefix.'_'.$container;
  367:                 } else {
  368:                     $container = $prefix;
  369:                 } 
  370:             } else {
  371:                 ($container) = ($map =~ m{(.+)\.(?:sequence|page)$});
  372:                 $container =~ s/\W/_/g;
  373:                 if (length($container) > 255) {
  374:                     $container = substr($container,0,254);
  375:                 }
  376:             }
  377:             my $subdir = 'essayresponse';
  378:             my %crsdesc = &Apache::lonnet::coursedescription($crsid);
  379:             foreach my $item ($crsdesc{'domain'},$crsdesc{'num'},$container,$resid,$cleanpart,$cleanid) {
  380:                 if ($item ne '') {
  381:                     $subdir .= '/'.$item;
  382:                 }
  383:             }
  384: 	    $Apache::lonhomework::results{"resource.$part.$id.uploadedurl"}=
  385: 		&Apache::lonnet::userfileupload('HWFILE'.$jspart.'_'.$id,undef,
  386: 						$subdir);
  387:             delete($env{'form.HWFILE'.$jspart.'_'.$id});
  388: 	}
  389:     } elsif ($which eq 'portfiles' &&
  390: 	     $Apache::lonhomework::history{"resource.$part.$id.$which"}) {
  391: 	my ($symb,$crsid,$domain,$name)=&Apache::lonnet::whichuser();
  392: 	&Apache::lonnet::unmark_as_readonly($domain,$name,[$symb,$crsid]);
  393: 	$Apache::lonhomework::results{"resource.$part.$id.$which"}="";
  394:     }
  395: }
  396: 
  397: sub delete_form_items {
  398:     my ($jspart,$id) = @_;
  399:     delete($env{'form.HWFILE'.$jspart.'_'.$id.'.filename'});
  400:     delete($env{'form.HWFILE'.$jspart.'_'.$id.'.mimetype'});
  401:     delete($env{'form.HWFILE'.$jspart.'_'.$id});
  402: }
  403: 
  404: 
  405: sub check_collaborators {
  406:     my ($ncol,$coll) = @_;
  407:     my %classlist=&Apache::lonnet::dump('classlist',
  408: 					$env{'course.'.$env{'request.course.id'}.'.domain'},
  409: 					$env{'course.'.$env{'request.course.id'}.'.num'});
  410:     my (@badcollaborators,$result);
  411:   
  412:     my (@collaborators) = split(/,?\s+/,$coll);
  413:     foreach my $entry (@collaborators) {
  414:         my $collaborator;
  415: 	if ($entry =~ /:/) {
  416: 	    $collaborator = $entry;
  417: 	} else {
  418: 	    $collaborator = $entry.':'.$env{'user.domain'};
  419: 	}
  420:         if ($collaborator !~ /^$match_username:$match_domain$/) {
  421:             if (!grep(/^\Q$entry\E$/,@badcollaborators)) {
  422: 	        push(@badcollaborators,$entry);
  423:             }
  424:         } elsif (!grep(/^\Q$collaborator\E$/i,keys(%classlist))) {
  425:             if (!grep(/^\Q$entry\E$/,@badcollaborators)) {
  426:                 push(@badcollaborators,$entry);
  427:             }
  428:         }
  429:     }
  430:     
  431:     my $numbad = scalar(@badcollaborators);
  432:     if ($numbad) {
  433: 	$result = '<table border="0"><tr bgcolor="#ffbbbb"><td>';
  434:         if ($numbad == 1) {
  435:             $result .= &mt('The following user is invalid:');
  436:         } else {
  437:             $result .= &mt('The following [_1] users are invalid:',$numbad);
  438:         }
  439: 	$result .= ' '.join(', ',@badcollaborators).'. '.&mt('Please correct.').
  440:                    '</td></tr></table>';
  441:     }
  442:     my $toomany = scalar(@collaborators) - $ncol;
  443:     if ($toomany > 0) {
  444: 	$result .= '<table border="0"><tr bgcolor="#ffbbbb"><td>'.
  445: 	           &mt('You have too many collaborators.').' '.
  446:                    &mt('Please remove [quant,_1,collaborator].',$toomany).
  447: 	           '</td></tr></table>';
  448:     }
  449:     return $result;
  450: }
  451: 
  452: 1;
  453: __END__
  454: 
  455: 
  456: =pod
  457: 
  458: =head1 NAME
  459: 
  460: Apache::easyresponse
  461: 
  462: =head1 SYNOPSIS
  463: 
  464: Handler to evaluate essay (ungraded) style responses.
  465: 
  466: This is part of the LearningOnline Network with CAPA project
  467: described at http://www.lon-capa.org.
  468: 
  469: =head1 SUBROUTINES
  470: 
  471: =over 
  472: 
  473: =item start_essayresponse()
  474: 
  475: =item end_essayresponse()
  476: 
  477: =item format_prior_response()
  478: 
  479: =item file_submission()
  480: 
  481: =item delete_form_items()
  482: 
  483: =item check_collaborators()
  484: 
  485: =back
  486: 
  487: =cut

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