1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
3: #
4: # $Id: bridgetask.pm,v 1.32 2005/05/27 17:08:03 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:
30:
31: package Apache::bridgetask;
32:
33: use strict;
34: use Apache::lonnet;
35: use Apache::File();
36: use Apache::lonmenu;
37: use Apache::lonlocal;
38: use Apache::lonxml;
39: use Time::HiRes qw( gettimeofday tv_interval );
40:
41: BEGIN {
42: &Apache::lonxml::register('Apache::bridgetask',('Task','IntroParagraph','Dimension','Instance','InstanceText','Criteria','ClosingParagraph'));
43: }
44:
45: sub initialize_bridgetask {
46: # id of current Dimension, 0 means that no dimension is current
47: # (inside <Task> only)
48: $Apache::bridgetask::dimension='';
49: # list of all Dimension ids seen
50: @Apache::bridgetask::dimensionlist=();
51: # mandatory attribute of all Dimensions seen
52: %Apache::bridgetask::dimensionmandatory=();
53: # list of all current Instance ids
54: @Apache::bridgetask::instance=();
55: # list of all Instance ids seen in this problem
56: @Apache::bridgetask::instancelist=();
57: # key of queud user data that we are currently grading
58: $Apache::bridgetask::queue_key='';
59: }
60:
61: sub proctor_check_auth {
62: my ($slot_name,$slot)=@_;
63: my $user=$env{'form.proctorname'};
64: my $domain=$env{'form.proctordomain'};
65:
66: my @allowed=split(",",$slot->{'proctor'});
67: foreach my $possible (@allowed) {
68: my ($puser,$pdom)=(split('@',$possible));
69: if ($puser eq $user && $pdom eq $domain) {
70: my $authhost=&Apache::lonnet::authenticate($puser,$env{'form.proctorpassword'},$pdom);
71: if ($authhost ne 'no_host') {
72: my $version=
73: $Apache::lonhomework::results{'resource.version'}=
74: ++$Apache::lonhomework::history{'resource.version'};
75: $Apache::lonhomework::results{"resource.$version.checkedin"}=
76: $user.'@'.$domain;
77: $Apache::lonhomework::results{"resource.$version.checkedin.slot"}=
78: $slot_name;
79: foreach my $key (keys(%Apache::lonhomework::history)) {
80: if ($key=~/^resource\.0\./) {
81: $Apache::lonhomework::results{$key}='';
82: }
83: }
84: return 1;
85: }
86: }
87: }
88: return 0;
89: }
90:
91: sub get_version {
92: my ($version,$previous);
93: if ($env{'form.previousversion'} &&
94: defined($Apache::lonhomework::history{'resource.'.$env{'form.previousversion'}.'.status'})) {
95: $version=$env{'form.previousversion'};
96: $previous=1;
97: } else {
98: $version=$Apache::lonhomework::history{'resource.version'};
99: $previous=0;
100: }
101: if (wantarray) {
102: return ($version,$previous);
103: }
104: return $version;
105: }
106:
107: sub add_previous_version_button {
108: my ($status)=@_;
109: my $result;
110: if ($Apache::lonhomework::history{'resource.version'} eq '') {
111: return '';
112: }
113: if ($Apache::lonhomework::history{'resource.version'} < 2 &&
114: $status ne 'NEEDS_CHECKIN') {
115: return '';
116: }
117: my $version=&get_version();
118: if ($env{'form.previousversion'} ne '' &&
119: $env{'form.previousversion'} eq $version) {
120: $result.="<h3>".&mt("Showing previous version [_1]",$version).
121: "</h3>\n";
122: }
123: my @to_show;
124: foreach my $test_version (1..$Apache::lonhomework::history{'resource.version'}) {
125: if (defined($Apache::lonhomework::history{'resource.'.$test_version.'.status'})) {
126: push(@to_show,$test_version);
127: }
128: }
129: my $list='<option>'.
130: join("</option>\n<option>",@to_show).
131: "</option>\n";
132: $result.='<form name="getprevious" method="POST" action="';
133: my $uri=$env{'request.uri'};
134: if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
135: $result.=$uri.'">'.
136: &mt(' Show a previously done version: [_1]','<select onchange="this.form.submit()" name="previousversion">
137: <option>'.&mt('Pick one').'</option>
138: '.$list.'
139: </select>')."</form>";
140: return $result;
141: }
142:
143: sub add_grading_button {
144: my $result=' <input type="submit" name="gradeasubmission" value="'.
145: &mt("Get a submission to grade").'" />';
146: $result.='<input type="hidden" name="grade_target" value="webgrade" />';
147: if ( 1) {
148: #need a permissions for limitng this to 'powerful users'
149: #check if review queue has items
150: $result.=' <input type="submit" name="reviewasubmission" value="'.
151: &mt("Select an entry from the review queue").'" />';
152: }
153: return $result;
154: }
155:
156: sub add_request_another_attempt_button {
157: my $result;
158: $result.=' <input type="submit" name="requestattempt" value="'.
159: &mt("Request another attempt").'" />';
160: return $result;
161: }
162:
163: sub preserve_grade_info {
164: my $result;
165: # if we are viewing someone else preserve that info
166: if (defined $env{'form.grade_symb'}) {
167: foreach my $field ('symb','courseid','domain','username') {
168: $result .= '<input type="hidden" name="grade_'.$field.
169: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
170: }
171: }
172: return $result;
173: }
174:
175: sub start_Task {
176: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
177:
178: my ($status,$accessmsg,$slot);
179: if ($target ne 'webgrade') {
180: &Apache::structuretags::initialize_storage();
181: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
182: }
183:
184: $Apache::lonhomework::parsing_a_task=1;
185: #should get back a <html> or the neccesary stuff to start XML/MathML
186: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
187: &Apache::structuretags::page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
188:
189: if ($target eq 'web') {
190: if ($Apache::lonhomework::modifygrades) {
191: $body_tag_start.='<form name="gradesubmission" method="POST" action="';
192: my $uri=$env{'request.uri'};
193: if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
194: $body_tag_start.=$uri.'">'.&add_grading_button()."</form>";
195: }
196: }
197: if ($target eq 'web' || ($target eq 'grade' && !$env{'form.webgrade'}) || $target eq 'answer' ||
198: $target eq 'tex') {
199: my ($version,$previous)=&get_version();
200: ($status,$accessmsg,my $slot_name,$slot) =
201: &Apache::lonhomework::check_task_access('0');
202: push(@Apache::inputtags::status,$status);
203: $Apache::inputtags::slot_name=$slot_name;
204: my $expression='$external::datestatus="'.$status.'";';
205: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$version.solved"}.'";';
206: &Apache::run::run($expression,$safeeval);
207: &Apache::lonxml::debug("Got $status");
208: $body_tag_start.=&add_previous_version_button($status);
209: if (!$previous && (
210: ( $status eq 'CLOSED' ) ||
211: ( $status eq 'BANNED') ||
212: ( $status eq 'UNAVAILABLE') ||
213: ( $status eq 'NOT_IN_A_SLOT') ||
214: ( $status eq 'NEEDS_CHECKIN') ||
215: ( $status eq 'WAITING_FOR_GRADE') ||
216: ( $status eq 'INVALID_ACCESS') )) {
217: my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
218: if ( $target eq "web" ) {
219: $result.= $head_tag_start.'</head>'.$body_tag_start;
220: my $msg;
221: if ($status eq 'UNAVAILABLE') {
222: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
223: } elsif ($status eq 'NOT_IN_A_SLOT') {
224: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
225: } elsif ($status eq 'NEEDS_CHECKIN') {
226: $msg.='<h1>'.&mt('You need the Proctor to validate you.').
227: '</h1>'.&proctor_validation_screen($slot);
228: } elsif ($status eq 'WAITING_FOR_GRADE') {
229: $msg.='<h1>'.&mt('Your submission is in the grading queue.').'</h1>';
230: } elsif ($status ne 'NOT_YET_VIEWED') {
231: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
232: }
233: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
234: $msg.='The problem '.$accessmsg;
235: }
236: $result.=$msg.'<br />';
237: } elsif ($target eq 'tex') {
238: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
239: if ($status eq 'UNAVAILABLE') {
240: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
241: } else {
242: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
243: }
244: } elsif ($target eq 'grade' && !$env{'form.webgrade'}) {
245: if ($status eq 'NEEDS_CHECKIN') {
246: if (&proctor_check_auth($slot_name,$slot)) {
247: #FIXME immeadiatly add this to the grading queue
248: # with slot->{'endtime'} for when grading can
249: # begin on this resource
250: # FIXME I think the above is done by default,
251: # need to check that
252: # failure doesn't do this.
253: }
254: }
255: }
256: } elsif ($target eq 'web') {
257: my $name= &Apache::structuretags::get_resource_name($parstack,$safeeval);
258: $result.="$head_tag_start<title>$name</title></head>
259: $body_tag_start \n $form_tag_start".
260: '<input type="hidden" name="submitted" value="yes" />';
261: $result.=&preserve_grade_info();
262: my ($version,$previous)=&get_version();
263: if ($Apache::lonhomework::history{"resource.$version.status"} eq 'fail') {
264: $result.='<h1><font color="red">'.&mt('Did not pass').'</font></h1>';
265: if (!$previous) {
266: $result.=&add_request_another_attempt_button();
267: }
268: }
269: if ($Apache::lonhomework::history{"resource.$version.status"} eq 'pass') {
270: $result.='<h1><font color="green">'.&mt('Passed').'</font></h1>';
271: }
272: }
273: } elsif ( ($target eq 'grade' && $env{'form.webgrade'}) ||
274: $target eq 'webgrade') {
275: my $webgrade='yes';
276: if ($target eq 'webgrade') {
277: #FIXME FORM conflcit with the 'show queue',1
278: $result.=$head_tag_start.$body_tag_start;
279: $result.='<br />Review'.&show_queue('reviewqueue');
280: $result.='<br />Before'.&show_queue('gradingqueue');
281: }
282: if (defined($env{'form.reviewasubmission'})) {
283: $result.=&show_queue('reviewqueue',1);
284: my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
285: } else {
286: my ($todo,$status_code)=&get_key_todo($target);
287: if ($todo) {
288: &setup_env_for_other_user($todo,$safeeval);
289: my ($symb,$uname,$udom)=&decode_queue_key($todo);
290: $result.="\n".'<table><tr><td>Found '.
291: &Apache::lonnet::gettitle($symb).' for '.$uname.' at '.$udom.'</td></tr></table>';
292: $result.='<input type="hidden" name="gradingkey" value="'.
293: &Apache::lonnet::escape($todo).'" />';
294: $Apache::bridgetask::queue_key=$todo;
295: &Apache::structuretags::initialize_storage();
296: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
297: if ($target eq 'webgrade') {
298: $result.='<br />After'.&show_queue('gradingqueue');
299: $result.="\n".'<table width="100%" style="width:100%" border="1">';
300: }
301: } else {
302: if ($target eq 'webgrade') {
303: $result.="\n".'<table><tr><td><b>';
304: if ($status_code eq 'stop') {
305: $result.=&mt("Stopped grading.");
306: } elsif ($status_code eq 'lock_failed') {
307: $result.=&mt("Failed to lock the request record.");
308: } elsif ($status_code eq 'unlock') {
309: $result.=&mt("Unlocked the requested user.");
310: } else {
311: $result.=&mt("No user to be graded.");
312: }
313: $result.='</b></td></tr></table>';
314: }
315: $webgrade='no';
316: my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
317: }
318: }
319: if ($target eq 'webgrade' && defined($env{'form.queue'})) {
320: $result.=$form_tag_start;
321: $result.='<input type="hidden" name="webgrade" value="'.
322: $webgrade.'" />';
323: $result.='<input type="hidden" name="queue" value="'.
324: $env{'form.queue'}.'" />';
325: }
326: } else {
327: # page_start returned a starting result, delete it if we don't need it
328: $result = '';
329: }
330: return $result;
331: }
332:
333: sub get_key_todo {
334: my ($target)=@_;
335: my $todo;
336: my $queue=$env{'form.queue'};
337: if (!defined($queue)) {
338: $env{'form.queue'}=$queue='gradingqueue';
339: }
340: my $gradingkey=&Apache::lonnet::unescape($env{'form.gradingkey'});
341: if (defined($env{'form.queue'}) && defined($env{'form.gradingkey'})
342: && !defined($env{'form.action'})) {
343: #FIXME probably need to do some cheking here for more validity
344: &Apache::lonnet::logthis("Found a key was given to me");
345: return ($gradingkey);
346: }
347: if ($env{'form.action'} eq 'resume') {
348: &Apache::lonnet::logthis("Resuming a key");
349: return ($gradingkey);
350: } elsif ($env{'form.action'} eq 'unlock') {
351: &Apache::lonnet::logthis("Unlocking a key ".
352: &check_queue_unlock($queue,$gradingkey,1));
353: return (undef,'unlock');
354: } elsif ($env{'form.action'} eq 'select') {
355: if (&lock_key($queue,$gradingkey)) {
356: return ($gradingkey);
357: }
358: return (undef,'lock_failed');
359: }
360: # don't get something new from the queue if they hit the stop button
361: if (!($env{'form.stop'} && $target eq 'webgrade')) {
362: return (&get_from_queue($queue));
363: } else {
364: return (undef,'stop');
365: }
366: }
367:
368: sub end_Task {
369: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
370: my $result='';
371: my $status=$Apache::inputtags::status['-1'];
372: my ($version,$previous)=&get_version();
373: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
374: $target eq 'tex') {
375: if (
376: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
377: ($target eq 'answer') || ($target eq 'tex')
378: ) {
379: if ($target eq 'web') {
380: if ($status eq 'CAN_ANSWER' && !$previous) {
381: $result.="\n".'<table border="1">'.
382: &Apache::inputtags::file_selector("$version.0",
383: "bridgetask","*",
384: 'portfolioonly').
385: "</table>";
386: $result.=&Apache::inputtags::gradestatus('0');
387: }
388: }
389: if ($target eq 'web' || $target eq 'webgrade') {
390: $result.=&Apache::lonxml::xmlend().'</html>';
391: }
392: }
393: if ($target eq 'grade' && !$env{'form.webgrade'} && !$previous) {
394: my $award='SUBMITTED';
395: &Apache::essayresponse::file_submission("$version.0",'bridgetask',
396: 'portfiles',\$award);
397: if ($award eq 'SUBMITTED' &&
398: $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}) {
399: $Apache::lonhomework::results{"resource.0.tries"}=
400: $Apache::lonhomework::results{"resource.$version.0.tries"}=
401: 1+$Apache::lonhomework::history{"resource.$version.0.tries"};
402:
403: $Apache::lonhomework::results{"resource.0.award"}=
404: $Apache::lonhomework::results{"resource.$version.0.award"}=
405: $award;
406: }
407: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
408: &Apache::structuretags::finalize_storage();
409: if ($award eq 'SUBMITTED') {
410: &add_to_queue('gradingqueue',$Apache::inputtags::slot_name);
411: }
412: }
413: if ($target eq 'grade' && $env{'form.webgrade'} eq 'yes') {
414: my $optional_required=
415: &Apache::lonxml::get_param('OptionalRequired',$parstack,
416: $safeeval);
417: my $optional_passed=0;
418: my $mandatory_failed=0;
419: my $ungraded=0;
420: my $review=0;
421: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
422: foreach my $dim_id (@Apache::bridgetask::dimensionlist) {
423: my $status=
424: $Apache::lonhomework::results{"resource.$version.$dim_id.status"};
425: my $mandatory=
426: ($Apache::bridgetask::dimensionmandatory{$dim_id} ne 'N');
427: if ($status eq 'pass') {
428: if (!$mandatory) { $optional_passed++; }
429: } elsif ($status eq 'fail') {
430: if ($mandatory) { $mandatory_failed++; }
431: } elsif ($status eq 'ungraded') {
432: $ungraded++;
433: } elsif ($status eq 'review') {
434: $review++;
435: }
436: }
437: if ($optional_passed < $optional_required) {
438: $mandatory_failed++;
439: }
440: &Apache::lonxml::debug("all dim ".join(':',@Apache::bridgetask::dimensionlist)."results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
441: $Apache::lonhomework::results{'resource.grader'}=
442: $env{'user.name'}.'@'.$env{'user.domain'};
443: if ($review) {
444: $Apache::lonhomework::results{"resource.$version.status"}='review';
445: # FIXME won't work well when already in review queues
446: &move_between_queues('gradingqueue','reviewqueue');
447: } elsif ($ungraded) {
448: $Apache::lonhomework::results{"resource.$version.status"}='ungraded';
449: # FIXME if in review queue need to move back to grading queue
450: &check_queue_unlock($env{'form.queue'});
451: } elsif ($mandatory_failed) {
452: $Apache::lonhomework::results{"resource.$version.status"}='fail';
453: $Apache::lonhomework::results{"resource.$version.0.solved"}='incorrect_by_override';
454: $Apache::lonhomework::results{"resource.$version.0.award"}='INCORRECT';
455: $Apache::lonhomework::results{"resource.$version.0.awarded"}='0';
456: &remove_from_queue($env{'form.queue'});
457: } else {
458: $Apache::lonhomework::results{"resource.$version.status"}='pass';
459: $Apache::lonhomework::results{"resource.$version.0.solved"}='correct_by_override';
460: $Apache::lonhomework::results{"resource.$version.0.award"}='EXACT_ANS';
461: $Apache::lonhomework::results{"resource.$version.0.awarded"}='1';
462: &remove_from_queue($env{'form.queue'});
463: }
464: $Apache::lonhomework::results{"resource.status"}=
465: $Apache::lonhomework::results{"resource.$version.status"};
466: if (defined($Apache::lonhomework::results{"resource.$version.0.awarded"})) {
467: $Apache::lonhomework::results{"resource.0.award"}=
468: $Apache::lonhomework::results{"resource.$version.award"};
469: $Apache::lonhomework::results{"resource.0.awarded"}=
470: $Apache::lonhomework::results{"resource.$version.awarded"};
471: $Apache::lonhomework::results{"resource.0.solved"}=
472: $Apache::lonhomework::results{"resource.$version.solved"};
473: }
474: &Apache::structuretags::finalize_storage();
475: }
476: } elsif ($target eq 'webgrade') {
477: $result.="</table>\n<hr />";
478: #$result.='<input type="submit" name="next" value="'.
479: # &mt('Save & Next').'" /> ';
480: #$result.='<input type="submit" name="end" value="'.
481: # &mt('Save & Stop Grading').'" /> ';
482: #$result.='<input type="submit" name="throwaway" value="'.
483: # &mt('Throw Away & Stop Grading').'" /> ';
484: #$result.='<input type="submit" name="save" value="'.
485: # &mt('Save Partial Grade and Continue Grading').'" /> ';
486: $result.='</form>'.&Apache::loncommon::endbodytag().'</html>';
487: } elsif ($target eq 'meta') {
488: $result.='<parameter part="0" package="Task"></parameter>'."\n";
489: #$result.=&Apache::response::meta_part_order();
490: #$result.=&Apache::response::meta_response_order();
491: }
492: undef($Apache::lonhomework::parsing_a_task);
493: return $result;
494: }
495:
496: sub move_between_queues {
497: my ($src_queue,$dest_queue)=@_;
498: my $cur_data=&get_queue_data($src_queue);
499: if (!$cur_data) { return 'not_exist'; }
500: my $result=&add_to_queue($dest_queue,$cur_data->[0]);
501: if ($result ne 'ok') {
502: return $result;
503: }
504: &check_queue_unlock($src_queue);
505: return &remove_from_queue($src_queue);
506: }
507:
508: sub check_queue_unlock {
509: my ($queue,$key,$allow_not_me)=@_;
510: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
511: if (!defined($key)) {
512: $key="$symb\0queue\0$uname\@$udom";
513: }
514: my $cnum=$env{'course.'.$cid.'.num'};
515: my $cdom=$env{'course.'.$cid.'.domain'};
516: my $me=$env{'user.name'}.'@'.$env{'user.domain'};
517: my $who=&queue_key_locked($queue,$key,$cdom,$cnum);
518: if ($who eq $me) {
519: return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
520: } elsif ($allow_not_me) {
521: &Apache::lonnet::logthis("unlocking $who by $me");
522: return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
523: }
524: return 'not_owner';
525: }
526:
527: sub remove_from_queue {
528: my ($queue)=@_;
529: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
530: my $cnum=$env{'course.'.$cid.'.num'};
531: my $cdom=$env{'course.'.$cid.'.domain'};
532: my $key="$symb\0queue\0$uname\@$udom";
533: my @keys=($key,"$key\0locked");
534: return &Apache::lonnet::del($queue,\@keys,$cdom,$cnum);
535: }
536:
537: sub setup_env_for_other_user {
538: my ($queue_key,$safeeval)=@_;
539: my ($symb,$uname,$udom)=&decode_queue_key($queue_key);
540: &Apache::lonxml::debug("setup_env for $queue_key");
541: $env{'form.grade_symb'}=$symb;
542: $env{'form.grade_domain'}=$udom;
543: $env{'form.grade_username'}=$uname;
544: $env{'form.grade_courseid'}=$env{'request.course.id'};
545: &Apache::lonxml::initialize_rndseed($safeeval);
546: }
547:
548: sub get_queue_data {
549: my ($queue)=@_;
550: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
551: my $cnum=$env{'course.'.$cid.'.num'};
552: my $cdom=$env{'course.'.$cid.'.domain'};
553: my $todo="$symb\0queue\0$uname\@$udom";
554: my ($key,$value)=&Apache::lonnet::get($queue,[$todo],$cdom,$cnum);
555: if ($key eq $todo && ref($value)) {
556: return $value;
557: }
558: return undef;
559: }
560:
561: sub add_to_queue {
562: my ($queue,$slot_name)=@_;
563: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
564: my $cnum=$env{'course.'.$cid.'.num'};
565: my $cdom=$env{'course.'.$cid.'.domain'};
566: my %data;
567: $data{"$symb\0queue\0$uname\@$udom"}=[$slot_name];
568: return &Apache::lonnet::put($queue,\%data,$cdom,$cnum);
569: }
570:
571: sub show_queue {
572: my ($queue,$with_selects)=@_;
573: my $result;
574: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
575: my $cnum=$env{'course.'.$cid.'.num'};
576: my $cdom=$env{'course.'.$cid.'.domain'};
577: my $regexp="^$symb\0";
578: my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
579: my ($tmp)=%queue;
580: if ($tmp=~/^error: 2 /) {
581: return "\n<h3>Current Queue</h3><table border='1'><tr><td>Empty</td></tr></table>";
582: }
583: $result.="\n<h3>Current Queue</h3><table border='1'><tr>";
584: if ($with_selects) { $result.="<th></th>"; }
585: $result.="<th>resource</th><th>user</th><th>type</th><th>data</th></tr>";
586: foreach my $key (sort(keys(%queue))) {
587: if ($key=~/locked$/ && !$with_selects) {
588: my ($symb,$uname,$udom) = &decode_queue_key($key);
589: my $title=&Apache::lonnet::gettitle($symb);
590: $result.="<tr><td>$title</td><td>$uname</td>";
591: $result.='<td>lock</td><td>'.$queue{$key}.'</td></tr>';
592: } elsif ($key=~/timestamp$/ && !$with_selects) {
593: my ($symb,undef) = split("\0",$key);
594: my $title=&Apache::lonnet::gettitle($symb);
595: $result.="<tr><td>$title</td><td></td>";
596: $result.='<td>last queue modification time</td><td>'.
597: &Apache::lonlocal::locallocaltime($queue{$key})."</td></tr>";
598: } elsif ($key!~/(timestamp|locked)$/) {
599: my ($symb,$uname,$udom) = &decode_queue_key($key);
600: my $title=&Apache::lonnet::gettitle($symb);
601: $result.="<tr>";
602: if ($with_selects) {
603: my $ekey=&Apache::lonnet::escape($key);
604: my ($action,$description)=('select',&mt('Select'));
605: if (exists($queue{"$key\0locked"})) {
606: my $me=$env{'user.name'}.'@'.$env{'user.domain'};
607: if ($me eq $queue{"$key\0locked"}) {
608: ($action,$description)=('resume',&mt('Resume'));
609: } else {
610: ($action,$description)=('unlock',&mt('Unlock'));
611: }
612: }
613: $result.=(<<FORM);
614: <td>
615: <form method="POST">
616: <input type="hidden" name="gradingkey" value="$ekey" />
617: <input type="hidden" name="queue" value="$queue" />
618: <input type="hidden" name="gradingaction" value="$action" />
619: <input type="hidden" name="webgrade" value="no" />
620: <input type="submit" name="submit" value="$description" />
621: </form>
622: </td>
623: FORM
624: }
625: $result.="<td>$title</td><td>$uname</td>";
626: my $slot=$queue{$key}->[0];
627: my %slot_data=&Apache::lonnet::get_slot($slot);
628: $result.='<td>queue entry</td><td>Slot: '.$slot.' End time: '.
629: &Apache::lonlocal::locallocaltime($slot_data{'endtime'}).
630: "</td></tr>";
631: }
632: }
633: $result.="</table><hr />\n";
634: return $result;
635: }
636:
637: sub decode_queue_key {
638: my ($key)=@_;
639: my ($symb,undef,$user) = split("\0",$key);
640: my ($uname,$udom) = split('@',$user);
641: return ($symb,$uname,$udom);
642: }
643:
644: sub queue_key_locked {
645: my ($queue,$key,$cdom,$cnum)=@_;
646: my ($key_locked,$value)=
647: &Apache::lonnet::get($queue,["$key\0locked"],$cdom,$cnum);
648: if ($key_locked eq "$key\0locked") {
649: return $value;
650: }
651: return undef;
652: }
653:
654: sub pick_from_queue_data {
655: my ($queue,$check_section,$queuedata,$cdom,$cnum)=@_;
656: foreach my $key (keys(%$queuedata)) {
657: my ($symb,$uname,$udom)=&decode_queue_key($key);
658: if ($check_section) {
659: my $section=&Apache::lonnet::getsection($uname,$udom);
660: if ($section eq $check_section) {
661: &Apache::lonnet::logthis("my sec");
662: next;
663: }
664: }
665: my $slot=$queuedata->{$key}[0];
666: my %slot_data=&Apache::lonnet::get_slot($slot);
667: if ($slot_data{'endtime'} > time) {
668: &Apache::lonnet::logthis("not time");
669: next;
670: }
671: if (&queue_key_locked($queue,$key,$cdom,$cnum)) {
672: &Apache::lonnet::logthis("someone already has um.");
673: next;
674: }
675: return $key;
676: }
677: return undef;
678: }
679:
680: sub find_mid_grade {
681: my ($queue,$symb,$cdom,$cnum)=@_;
682: my $todo=&Apache::lonnet::unescape($env{'form.gradingkey'});
683: my $me=$env{'user.name'}.'@'.$env{'user.domain'};
684: if ($todo) {
685: my $who=&queue_key_locked($queue,$todo,$cdom,$cnum);
686: if ($who eq $me) { return $todo; }
687: }
688: my $regexp="^$symb\0.*\0locked\$";
689: my %locks=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
690: foreach my $key (keys(%locks)) {
691: my $who=$locks{$key};
692: if ($who eq $me) {
693: $todo=$key;
694: $todo=~s/\0locked$//;
695: return $todo;
696: }
697: }
698: return undef;
699: }
700:
701: sub lock_key {
702: my ($queue,$todo)=@_;
703: my $me=$env{'user.name'}.'@'.$env{'user.domain'};
704: my (undef,$cid)=&Apache::lonxml::whichuser();
705: my $cnum=$env{'course.'.$cid.'.num'};
706: my $cdom=$env{'course.'.$cid.'.domain'};
707: my $success=&Apache::lonnet::newput($queue,{"$todo\0locked"=> $me},
708: $cdom,$cnum);
709: &Apache::lonnet::logthis("success $success $todo");
710: if ($success eq 'ok') {
711: return 1;
712: }
713: return 0;
714: }
715:
716: sub get_from_queue {
717: my ($queue)=@_;
718: my $result;
719: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
720: my $cnum=$env{'course.'.$cid.'.num'};
721: my $cdom=$env{'course.'.$cid.'.domain'};
722: my $todo=&find_mid_grade($queue,$symb,$cdom,$cnum);
723: &Apache::lonnet::logthis("found ".join(':',&decode_queue_key($todo)));
724: if ($todo) { return $todo; }
725: while (1) {
726: my $starttime=time;
727: &Apache::lonnet::put($queue,{"$symb\0timestamp"=>$starttime},
728: $cdom,$cnum);
729: &Apache::lonnet::logthis("$starttime");
730: my $regexp="^$symb\0queue\0";
731: my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
732: #make a pass looking for a user in my section
733: if ($env{'request.course.sec'}) {
734: &Apache::lonnet::logthis("sce");
735: $todo=&pick_from_queue_data($queue,$env{'request.course.sec'},
736: \%queue,$cdom,$cnum);
737: &Apache::lonnet::logthis("sce $todo");
738: }
739: # no one in our section so look for any user that is ready for grading
740: if (!$todo) {
741: &Apache::lonnet::logthis("no sce");
742: $todo=&pick_from_queue_data($queue,$env{'request.course.sec'},
743: \%queue,$cdom,$cnum);
744: &Apache::lonnet::logthis("no sce $todo");
745: }
746: # no user to grade
747: if (!$todo) { last; }
748: &Apache::lonnet::logthis("got $todo");
749: # otherwise found someone so lets try to lock them
750: # unless someone else already picked them
751: if (!&lock_key($queue,$todo)) { next; }
752: my (undef,$endtime)=
753: &Apache::lonnet::get($queue,["$symb\0timestamp"],
754: $cdom,$cnum);
755: &Apache::lonnet::logthis("emd $endtime");
756: # someone else already modified the queue,
757: # perhaps our picked user wass already fully graded between
758: # when we picked him and when we locked his record? so lets
759: # double check.
760: if ($endtime != $starttime) {
761: my ($key,$value)=
762: &Apache::lonnet::get($queue,["$todo"],
763: $cdom,$cnum);
764: &Apache::lonnet::logthis("check $key .. $value");
765: if ($key eq $todo && ref($value)) {
766: } else {
767: &Apache::lonnet::del($queue,["$todo\0locked"],
768: $cdom,$cnum);
769: &Apache::lonnet::logthis("del");
770: next;
771: }
772: }
773: &Apache::lonnet::logthis("last $todo");
774: last;
775: }
776: return $todo;
777: }
778:
779: sub start_ClosingParagraph {
780: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
781: my $result;
782: if ($target eq 'web') {
783: } elsif ($target eq 'webgrade') {
784: &Apache::lonxml::startredirection();
785: }
786: return $result;
787: }
788:
789: sub end_ClosingParagraph {
790: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
791: my $result;
792: if ($target eq 'web') {
793: } elsif ($target eq 'webgrade') {
794: &Apache::lonxml::endredirection();
795: }
796: return $result;
797: }
798:
799: sub get_id {
800: my ($parstack,$safeeval)=@_;
801: my $id=&Apache::lonxml::get_param('id',$parstack,$safeeval);
802: if (!$id) { $id=$Apache::lonxml::curdepth; }
803: return $id;
804: }
805:
806: my %dimension;
807: sub start_Dimension {
808: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
809: undef(%dimension);
810: my $dim_id=&get_id($parstack,$safeeval);
811: $Apache::bridgetask::dimension=$dim_id;
812: push(@Apache::bridgetask::dimensionlist,$dim_id);
813: undef(@Apache::bridgetask::instance);
814: $Apache::bridgetask::dimensionmandatory{$dim_id}=
815: &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
816: return '';
817: }
818:
819: sub get_instance {
820: &Apache::response::pushrandomnumber();
821: my @order=&Math::Random::random_permutation(@{$dimension{'instances'}});
822: my $num=@order;
823: my $version=&get_version();
824: my $which=($version-1)%$num;
825: return $order[$which];
826: }
827:
828: {
829: my $last_link;
830: sub end_Dimension {
831: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
832: my $result;
833: my $dim=&get_id($parstack,$safeeval);
834: my $instance=&get_instance();
835: my $version=&get_version();
836: if ($target eq 'web') {
837: $result=$dimension{'intro'}.$dimension{$instance.'.text'};
838: if ($Apache::lonhomework::history{"resource.$version.status"} eq 'pass' ||
839: $Apache::lonhomework::history{"resource.$version.status"} eq 'fail') {
840: foreach my $id (@{$dimension{$instance.'.criterias'}}) {
841: my $status=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"};
842: my $comment=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"};
843: $result.='<table border="1"><tr><td>';
844: if ($status eq 'fail') {
845: $result.='<font color="red">'.&mt('Did not pass').'</font>';
846: } elsif ($status eq 'pass') {
847: $result.='<font color="green">'.&mt('Passed').'</font>';
848: } else {
849: &Apache::lonxml::error("Student viewing a graded bridgetask was show a status of $status");
850: }
851: $result.='</td></tr><tr><td>';
852: if ($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}) {
853: $result.=&mt('Comment from grader: ').$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}.'</td></tr><tr><td>';
854: }
855: $result.=$dimension{$instance.'.criteria.'.$id}.
856: '</td></tr></table>';
857: }
858: }
859: } elsif ($target eq 'webgrade') {
860: foreach my $id (@{$dimension{$instance.'.criterias'}}) {
861: my $link='criteria_'.$instance.'_'.$id;
862: my $status=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"};
863: $result.='<tr><td width="100%" valign="top">'.
864: '<a name="'.$link.'" />'.
865: '<a name="next_'.$last_link.'" />'.
866: '<br /><textarea enabled="false" style="width:100%" rows="8" width="25" wrap="hard">'.$dimension{$instance.'.criteria.'.$id}.'</textarea>'.
867: #$dimension{$instance.'.criteria.'.$id}.
868: '</td>'.
869: '<td><nobr>Additional Comment for Student</nobr> <br />'.
870: '<textarea style="width:100%" rows="8" width="25" wrap="hard" name="HWVAL_comment_'.$link.'">'.&HTML::Entities::encode($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}).'</textarea>'.
871: '</td>'.
872: '<td>'.
873: '<nobr><label><input type="radio" name="HWVAL_'.$link.'" value="ungraded" '.($status eq 'ungraded' || !$status ? 'checked="checked"':'').'/>'.&mt('Ungraded').'</label></nobr><br />'.
874: '<label><input type="radio" name="HWVAL_'.$link.'" value="pass" '.($status eq 'pass' ? 'checked="checked"':'').' />'.&mt('Pass').'</label><br />'.
875: '<label><input type="radio" name="HWVAL_'.$link.'" value="fail" '.($status eq 'fail' ? 'checked="checked"':'').' />'.&mt('Fail').'</label><br />'.
876: '<label><input type="radio" name="HWVAL_'.$link.'" value="review" '.($status eq 'review' ? 'checked="checked"':'').' />'.&mt('Review').'</label><br />'.
877: '</td>'.
878: '<td>'.
879: '<a href="#'.$last_link.'">Prev</a><br />'.
880: '<a href="#next_'.$link.'">Next</a><br /><br /><br />'.
881: '<input type="submit" name="next" value="'.
882: &mt('Done').'" /> '.
883: '<input type="submit" name="stop" value="'.
884: &mt('Stop').'" /> '.
885: '</td></tr>';
886: $result.='<tr><td colspan="4">';
887: my (undef,undef,$udom,$uname) = &Apache::lonxml::whichuser();
888: my $file_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio';
889: foreach my $partial_file (split(',',$Apache::lonhomework::history{"resource.$version.bridgetask.portfiles"})) {
890: my $file=$file_url.$partial_file;
891: &Apache::lonnet::allowuploaded('/adm/bridgetask',$file);
892: $result.='<a href="'.$file.'" target="lonGRDs"><img src="'.
893: &Apache::loncommon::icon($file).'" border=0"> '.$file.
894: '</a>';
895: }
896: $result.='</td></tr>';
897: $last_link=$link;
898: }
899: } elsif ($target eq 'grade' && $env{'form.webgrade'}) {
900: my $optional_passed=0;
901: my $mandatory_failed=0;
902: my $ungraded=0;
903: my $review=0;
904: foreach my $id (@{$dimension{$instance.'.criterias'}}) {
905: my $status=$Apache::lonhomework::results{"resource.$version.$dim.$instance.$id.status"}=$env{'form.HWVAL_criteria_'.$instance.'_'.$id};
906: $Apache::lonhomework::results{"resource.$version.$dim.$instance.$id.comment"}=$env{'form.HWVAL_comment_criteria_'.$instance.'_'.$id};
907: my $mandatory=($dimension{$instance.'.criteria.'.$id.'.mandatory'} ne 'N');
908: if ($status eq 'pass') {
909: if (!$mandatory) { $optional_passed++; }
910: } elsif ($status eq 'fail') {
911: if ($mandatory) { $mandatory_failed++; }
912: } elsif ($status eq 'review') {
913: $review++;
914: } elsif ($status eq 'ungraded') {
915: $ungraded++;
916: } else {
917: &Apache::lonxml::error("got weird status --$status--");
918: }
919: }
920: if ($optional_passed < $dimension{$instance.'.optionalrequired'}) {
921: $mandatory_failed++;
922: }
923: &Apache::lonxml::debug("all instance ".join(':',@{$dimension{$instance.'.criterias'}})." results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
924: if ($review) {
925: $Apache::lonhomework::results{"resource.$version.$dim.status"}=
926: 'review';
927: } elsif ($ungraded) {
928: $Apache::lonhomework::results{"resource.$version.$dim.status"}=
929: 'ungraded';
930: } elsif ($mandatory_failed) {
931: $Apache::lonhomework::results{"resource.$version.$dim.status"}=
932: 'fail';
933: } else {
934: $Apache::lonhomework::results{"resource.$version.$dim.status"}=
935: 'pass';
936: }
937: }
938: return $result;
939: }
940: }
941:
942: sub start_IntroParagraph {
943: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
944: my $result;
945: if ($target eq 'web' || $target eq 'webgrade') {
946: if ($tagstack->[-2] eq 'Dimension' || $target eq 'webgrade') {
947: &Apache::lonxml::startredirection();
948: }
949: }
950: return $result;
951: }
952:
953: sub end_IntroParagraph {
954: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
955: my $result;
956: if ($target eq 'web' || $target eq 'webgrade') {
957: if ($tagstack->[-2] eq 'Dimension' || $target eq 'webgrade') {
958: $dimension{'intro'}=&Apache::lonxml::endredirection();
959: }
960: }
961: return $result;
962: }
963:
964: sub start_Instance {
965: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
966: my $id=&get_id($parstack,$safeeval);
967: push(@{$dimension{'instances'}},$id);
968: push(@Apache::bridgetask::instance,$id);
969: push(@Apache::bridgetask::instancelist,$id);
970: $dimension{$id.'.optionalrequired'}=
971: &Apache::lonxml::get_param('OptionalRequired',$parstack,$safeeval);
972: return '';
973: }
974:
975: sub end_Instance {
976: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
977: return '';
978: }
979:
980: sub start_InstanceText {
981: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
982: if ($target eq 'web' || $target eq 'webgrade') {
983: &Apache::lonxml::startredirection();
984: }
985: return '';
986: }
987:
988: sub end_InstanceText {
989: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
990: my $instance_id=$Apache::bridgetask::instance[-1];
991: if ($target eq 'web' || $target eq 'webgrade') {
992: $dimension{$instance_id.'.text'}=&Apache::lonxml::endredirection();
993: }
994: return '';
995: }
996:
997: sub start_Criteria {
998: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
999: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {
1000: &Apache::lonxml::startredirection();
1001: }
1002: return '';
1003: }
1004:
1005: sub end_Criteria {
1006: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1007: my $instance_id=$Apache::bridgetask::instance[-1];
1008: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {
1009: my $criteria=&Apache::lonxml::endredirection();
1010: my $id=&get_id($parstack,$safeeval);
1011: $dimension{$instance_id.'.criteria.'.$id}=$criteria;
1012: $dimension{$instance_id.'.criteria.'.$id.'.mandatory'}=
1013: &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
1014: push(@{$dimension{$instance_id.'.criterias'}},$id);
1015: }
1016: return '';
1017: }
1018:
1019: sub proctor_validation_screen {
1020: my ($slot) = @_;
1021: my (undef,undef,$domain,$user) = &Apache::lonxml::whichuser();
1022: my $url=&Apache::lonnet::studentphoto($domain,$user,'jpg');
1023: $user=$env{'form.proctorname'};
1024: if ($env{'form.proctordomain'}) { $domain=$env{'form.proctordomain'}; }
1025: my $msg;
1026: if ($env{'form.proctorpassword'}) {
1027: $msg='<p><font color="red">'.&mt("Failed to authenticate the proctor.")
1028: .'</font></p>';
1029: }
1030: my $result= (<<ENDCHECKOUT);
1031: <h2>Proctor Validation</h2>
1032: <p>Your room's proctor needs to validate your access to this resource.</p>
1033: $msg
1034: <form name="checkout" method="POST" action="$env{'request.uri'}">
1035: <input type="hidden" name="validate" value="yes" />
1036: <input type="hidden" name="submitted" value="yes" />
1037: <table>
1038: <tr><td>Proctor's Username:</td><td><input type="string" name="proctorname" value="$user" /></td></tr>
1039: <tr><td>Password:</td><td><input type="password" name="proctorpassword" value="" /></td></tr>
1040: <tr><td>Proctor's Domain:</td><td><input type="string" name="proctordomain" value="$domain" /></td></tr>
1041: </table>
1042: <input type="submit" name="checkoutbutton" value="Validate" /><br />
1043: Student who should be logged in is:<br />
1044: <img src="$url" /><br />
1045: </form>
1046: ENDCHECKOUT
1047: return $result;
1048: }
1049:
1050: 1;
1051: __END__
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