1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
3: #
4: # $Id: bridgetask.pm,v 1.30 2005/05/24 19:33:28 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: return $result;
148: }
149:
150: sub add_request_another_attempt_button {
151: my $result;
152: $result.=' <input type="submit" name="requestattempt" value="'.
153: &mt("Request another attempt").'" />';
154: return $result;
155: }
156:
157: sub preserve_grade_info {
158: my $result;
159: # if we are viewing someone else preserve that info
160: if (defined $env{'form.grade_symb'}) {
161: foreach my $field ('symb','courseid','domain','username') {
162: $result .= '<input type="hidden" name="grade_'.$field.
163: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
164: }
165: }
166: return $result;
167: }
168:
169: sub start_Task {
170: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
171:
172: my ($status,$accessmsg,$slot);
173: if ($target ne 'webgrade') {
174: &Apache::structuretags::initialize_storage();
175: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
176: }
177:
178: $Apache::lonhomework::parsing_a_task=1;
179: #should get back a <html> or the neccesary stuff to start XML/MathML
180: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
181: &Apache::structuretags::page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
182:
183: if ($target eq 'web') {
184: if ($Apache::lonhomework::modifygrades) {
185: $body_tag_start.='<form name="gradesubmission" method="POST" action="';
186: my $uri=$env{'request.uri'};
187: if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
188: $body_tag_start.=$uri.'">'.&add_grading_button()."</form>";
189: }
190: }
191: if ($target eq 'web' || ($target eq 'grade' && !$env{'form.webgrade'}) || $target eq 'answer' ||
192: $target eq 'tex') {
193: my ($version,$previous)=&get_version();
194: ($status,$accessmsg,my $slot_name,$slot) =
195: &Apache::lonhomework::check_task_access('0');
196: push(@Apache::inputtags::status,$status);
197: $Apache::inputtags::slot_name=$slot_name;
198: my $expression='$external::datestatus="'.$status.'";';
199: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$version.solved"}.'";';
200: &Apache::run::run($expression,$safeeval);
201: &Apache::lonxml::debug("Got $status");
202: $body_tag_start.=&add_previous_version_button($status);
203: if (!$previous && (
204: ( $status eq 'CLOSED' ) ||
205: ( $status eq 'BANNED') ||
206: ( $status eq 'UNAVAILABLE') ||
207: ( $status eq 'NOT_IN_A_SLOT') ||
208: ( $status eq 'NEEDS_CHECKIN') ||
209: ( $status eq 'WAITING_FOR_GRADE') ||
210: ( $status eq 'INVALID_ACCESS') )) {
211: my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
212: if ( $target eq "web" ) {
213: $result.= $head_tag_start.'</head>'.$body_tag_start;
214: my $msg;
215: if ($status eq 'UNAVAILABLE') {
216: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
217: } elsif ($status eq 'NOT_IN_A_SLOT') {
218: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
219: } elsif ($status eq 'NEEDS_CHECKIN') {
220: $msg.='<h1>'.&mt('You need the Proctor to validate you.').
221: '</h1>'.&proctor_validation_screen($slot);
222: } elsif ($status eq 'WAITING_FOR_GRADE') {
223: $msg.='<h1>'.&mt('Your submission is in the grading queue.').'</h1>';
224: } elsif ($status ne 'NOT_YET_VIEWED') {
225: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
226: }
227: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
228: $msg.='The problem '.$accessmsg;
229: }
230: $result.=$msg.'<br />';
231: } elsif ($target eq 'tex') {
232: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
233: if ($status eq 'UNAVAILABLE') {
234: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
235: } else {
236: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
237: }
238: } elsif ($target eq 'grade' && !$env{'form.webgrade'}) {
239: if ($status eq 'NEEDS_CHECKIN') {
240: if (&proctor_check_auth($slot_name,$slot)) {
241: #FIXME immeadiatly add this to the grading queue
242: # with slot->{'endtime'} for when grading can
243: # begin on this resource
244: # FIXME I think the above is done by default,
245: # need to check that
246: # failure doesn't do this.
247: }
248: }
249: }
250: } elsif ($target eq 'web') {
251: my $name= &Apache::structuretags::get_resource_name($parstack,$safeeval);
252: $result.="$head_tag_start<title>$name</title></head>
253: $body_tag_start \n $form_tag_start".
254: '<input type="hidden" name="submitted" value="yes" />';
255: $result.=&preserve_grade_info();
256: my ($version,$previous)=&get_version();
257: if ($Apache::lonhomework::history{"resource.$version.status"} eq 'fail') {
258: $result.='<h1><font color="red">'.&mt('Did not pass').'</font></h1>';
259: if (!$previous) {
260: $result.=&add_request_another_attempt_button();
261: }
262: }
263: if ($Apache::lonhomework::history{"resource.$version.status"} eq 'pass') {
264: $result.='<h1><font color="green">'.&mt('Passed').'</font></h1>';
265: }
266: }
267: } elsif ( ($target eq 'grade' && $env{'form.webgrade'}) ||
268: $target eq 'webgrade') {
269: if ($target eq 'webgrade') {
270: $result.=$head_tag_start.$body_tag_start.$form_tag_start;
271: $result.='<input type="hidden" name="webgrade" value="yes" />';
272: $result.='<br />Before'.&show_queue('gradingqueue');
273: }
274: my $todo;
275: # don't get something new from the queue if they hit the stop button
276: if (!($env{'form.stop'} && $target eq 'webgrade')) {
277: $todo=&get_from_queue('gradingqueue');
278: }
279: if ($todo) {
280: &setup_env_for_other_user($todo,$safeeval);
281: my ($symb,$uname,$udom)=&decode_queue_key($todo);
282: $result.="\n".'<table><tr><td>Found '.
283: &Apache::lonnet::gettitle($symb).' for '.$uname.' at '.$udom.'</td></tr></table>';
284: $result.='<input type="hidden" name="gradingkey" value="'.
285: &Apache::lonnet::escape($todo).'" />';
286: $Apache::bridgetask::queue_key=$todo;
287: &Apache::structuretags::initialize_storage();
288: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
289: if ($target eq 'webgrade') {
290: $result.='<br />After'.&show_queue('gradingqueue');
291: $result.="\n".'<table width="100%" style="width:100%" border="1">';
292: }
293: } else {
294: if ($target eq 'webgrade') {
295: $result.="\n".'<table><tr><td><b>';
296: if ($env{'form.stop'}) {
297: $result.=&mt("Stopped grading.");
298: } else {
299: $result.=&mt("No user to be graded.");
300: }
301: $result.='</b></td></tr></table>';
302: }
303: my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
304: }
305: } else {
306: # page_start returned a starting result, delete it if we don't need it
307: $result = '';
308: }
309: return $result;
310: }
311:
312: sub end_Task {
313: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
314: my $result='';
315: my $status=$Apache::inputtags::status['-1'];
316: my ($version,$previous)=&get_version();
317: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
318: $target eq 'tex') {
319: if (
320: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
321: ($target eq 'answer') || ($target eq 'tex')
322: ) {
323: if ($target eq 'web') {
324: if ($status eq 'CAN_ANSWER' && !$previous) {
325: $result.="\n".'<table border="1">'.
326: &Apache::inputtags::file_selector("$version.0",
327: "bridgetask","*",
328: 'portfolioonly').
329: "</table>";
330: $result.=&Apache::inputtags::gradestatus('0');
331: }
332: }
333: if ($target eq 'web' || $target eq 'webgrade') {
334: $result.=&Apache::lonxml::xmlend().'</html>';
335: }
336: }
337: if ($target eq 'grade' && !$env{'form.webgrade'} && !$previous) {
338: my $award='SUBMITTED';
339: &Apache::essayresponse::file_submission("$version.0",'bridgetask',
340: 'portfiles',\$award);
341: if ($award eq 'SUBMITTED' &&
342: $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}) {
343: $Apache::lonhomework::results{"resource.0.tries"}=
344: $Apache::lonhomework::results{"resource.$version.0.tries"}=
345: 1+$Apache::lonhomework::history{"resource.$version.0.tries"};
346:
347: $Apache::lonhomework::results{"resource.0.award"}=
348: $Apache::lonhomework::results{"resource.$version.0.award"}=
349: $award;
350: }
351: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
352: &Apache::structuretags::finalize_storage();
353: if ($award eq 'SUBMITTED') {
354: &add_to_queue('gradingqueue');
355: }
356: }
357: if ($target eq 'grade' && $env{'form.webgrade'}) {
358: my $optional_required=
359: &Apache::lonxml::get_param('OptionalRequired',$parstack,
360: $safeeval);
361: my $optional_passed=0;
362: my $mandatory_failed=0;
363: my $ungraded=0;
364: my $review=0;
365: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
366: foreach my $dim_id (@Apache::bridgetask::dimensionlist) {
367: my $status=
368: $Apache::lonhomework::results{"resource.$version.$dim_id.status"};
369: my $mandatory=
370: ($Apache::bridgetask::dimensionmandatory{$dim_id} ne 'N');
371: if ($status eq 'pass') {
372: if (!$mandatory) { $optional_passed++; }
373: } elsif ($status eq 'fail') {
374: if ($mandatory) { $mandatory_failed++; }
375: } elsif ($status eq 'ungraded') {
376: $ungraded++;
377: } elsif ($status eq 'review') {
378: $review++;
379: }
380: }
381: if ($optional_passed < $optional_required) {
382: $mandatory_failed++;
383: }
384: &Apache::lonxml::debug("all dim ".join(':',@Apache::bridgetask::dimensionlist)."results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
385: $Apache::lonhomework::results{'resource.grader'}=
386: $env{'user.name'}.'@'.$env{'user.domain'};
387: if ($review) {
388: $Apache::lonhomework::results{"resource.$version.status"}='review';
389: &move_to_review_queue();
390: } elsif ($ungraded) {
391: $Apache::lonhomework::results{"resource.$version.status"}='ungraded';
392: &check_queue_unlock('gradingqueue');
393: } elsif ($mandatory_failed) {
394: $Apache::lonhomework::results{"resource.$version.status"}='fail';
395: $Apache::lonhomework::results{"resource.$version.0.solved"}='incorrect_by_override';
396: $Apache::lonhomework::results{"resource.$version.0.award"}='INCORRECT';
397: $Apache::lonhomework::results{"resource.$version.0.awarded"}='0';
398: &remove_from_queue('gradingqueue');
399: } else {
400: $Apache::lonhomework::results{"resource.$version.status"}='pass';
401: $Apache::lonhomework::results{"resource.$version.0.solved"}='correct_by_override';
402: $Apache::lonhomework::results{"resource.$version.0.award"}='EXACT_ANS';
403: $Apache::lonhomework::results{"resource.$version.0.awarded"}='1';
404: &remove_from_queue();
405: }
406: $Apache::lonhomework::results{"resource.status"}=
407: $Apache::lonhomework::results{"resource.$version.status"};
408: if (defined($Apache::lonhomework::results{"resource.$version.0.awarded"})) {
409: $Apache::lonhomework::results{"resource.0.award"}=
410: $Apache::lonhomework::results{"resource.$version.award"};
411: $Apache::lonhomework::results{"resource.0.awarded"}=
412: $Apache::lonhomework::results{"resource.$version.awarded"};
413: $Apache::lonhomework::results{"resource.0.solved"}=
414: $Apache::lonhomework::results{"resource.$version.solved"};
415: }
416: &Apache::structuretags::finalize_storage();
417: }
418: } elsif ($target eq 'webgrade') {
419: $result.="</table>\n<hr />";
420: #$result.='<input type="submit" name="next" value="'.
421: # &mt('Save & Next').'" /> ';
422: #$result.='<input type="submit" name="end" value="'.
423: # &mt('Save & Stop Grading').'" /> ';
424: #$result.='<input type="submit" name="throwaway" value="'.
425: # &mt('Throw Away & Stop Grading').'" /> ';
426: #$result.='<input type="submit" name="save" value="'.
427: # &mt('Save Partial Grade and Continue Grading').'" /> ';
428: $result.='</form>'.&Apache::loncommon::endbodytag().'</html>';
429: } elsif ($target eq 'meta') {
430: $result.='<parameter part="0" package="Task"></parameter>'."\n";
431: #$result.=&Apache::response::meta_part_order();
432: #$result.=&Apache::response::meta_response_order();
433: }
434: undef($Apache::lonhomework::parsing_a_task);
435: return $result;
436: }
437:
438: sub move_to_review_queue {
439:
440: &Apache::lonxml::debug("Want to move");
441: }
442:
443: sub check_queue_unlock {
444: my ($queue)=@_;
445: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
446: my $cnum=$env{'course.'.$cid.'.num'};
447: my $cdom=$env{'course.'.$cid.'.domain'};
448: my $key="$symb\0queue\0$uname\@$udom";
449: my $me=$env{'user.name'}.'@'.$env{'user.domain'};
450: my $who=&queue_key_locked($queue,$key,$cdom,$cnum);
451: if ($who eq $me) {
452: &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
453: }
454: }
455:
456: sub remove_from_queue {
457: my ($queue)=@_;
458: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
459: my $cnum=$env{'course.'.$cid.'.num'};
460: my $cdom=$env{'course.'.$cid.'.domain'};
461: my $key="$symb\0queue\0$uname\@$udom";
462: my @keys=($key,"$key\0locked");
463: &Apache::lonnet::del($queue,\@keys,$cdom,$cnum);
464: }
465:
466: sub setup_env_for_other_user {
467: my ($queue_key,$safeeval)=@_;
468: my ($symb,$uname,$udom)=&decode_queue_key($queue_key);
469: &Apache::lonxml::debug("setup_env for $queue_key");
470: $env{'form.grade_symb'}=$symb;
471: $env{'form.grade_domain'}=$udom;
472: $env{'form.grade_username'}=$uname;
473: $env{'form.grade_courseid'}=$env{'request.course.id'};
474: &Apache::lonxml::initialize_rndseed($safeeval);
475: }
476:
477: sub add_to_queue {
478: my ($queue)=@_;
479: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
480: my $cnum=$env{'course.'.$cid.'.num'};
481: my $cdom=$env{'course.'.$cid.'.domain'};
482: my %data;
483: $data{"$symb\0queue\0$uname\@$udom"}=[$Apache::inputtags::slot_name];
484: &Apache::lonnet::put($queue,\%data,$cdom,$cnum);
485: }
486:
487: sub show_queue {
488: my ($queue)=@_;
489: my $result;
490: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
491: my $cnum=$env{'course.'.$cid.'.num'};
492: my $cdom=$env{'course.'.$cid.'.domain'};
493: my $regexp="^$symb\0";
494: my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
495: $result.="\n<h3>Current Queue</h3><table border='1'><tr><th>resource</th>".
496: "<th>user</th><th>type</th><th>data</th></tr>";
497: foreach my $key (sort(keys(%queue))) {
498: if ($key=~/locked$/) {
499: my ($symb,$uname,$udom) = &decode_queue_key($key);
500: my $title=&Apache::lonnet::gettitle($symb);
501: $result.="<tr><td>$title</td><td>$uname</td>";
502: $result.='<td>lock</td><td>'.$queue{$key}.'</td></tr>';
503: } elsif ($key=~/timestamp$/) {
504: my ($symb,undef) = split("\0",$key);
505: my $title=&Apache::lonnet::gettitle($symb);
506: $result.="<tr><td>$title</td><td></td>";
507: $result.='<td>last queue modification time</td><td>'.
508: &Apache::lonlocal::locallocaltime($queue{$key})."</td></tr>";
509: } else {
510: my ($symb,$uname,$udom) = &decode_queue_key($key);
511: my $title=&Apache::lonnet::gettitle($symb);
512: $result.="<tr><td>$title</td><td>$uname</td>";
513: my $slot=$queue{$key}->[0];
514: my %slot_data=&Apache::lonnet::get_slot($slot);
515: $result.='<td>queue entry</td><td>Slot: '.$slot.' End time: '.
516: &Apache::lonlocal::locallocaltime($slot_data{'endtime'}).
517: "</td></tr>";
518: }
519: }
520: $result.="</table><hr />\n";
521: return $result;
522: }
523:
524: sub decode_queue_key {
525: my ($key)=@_;
526: my ($symb,undef,$user) = split("\0",$key);
527: my ($uname,$udom) = split('@',$user);
528: return ($symb,$uname,$udom);
529: }
530:
531: sub queue_key_locked {
532: my ($queue,$key,$cdom,$cnum)=@_;
533: my ($key_locked,$value)=
534: &Apache::lonnet::get($queue,["$key\0locked"],$cdom,$cnum);
535: if ($key_locked eq "$key\0locked") {
536: return $value;
537: }
538: return undef;
539: }
540:
541: sub pick_from_queue_data {
542: my ($queue,$check_section,$queuedata,$cdom,$cnum)=@_;
543: foreach my $key (keys(%$queuedata)) {
544: my ($symb,$uname,$udom)=&decode_queue_key($key);
545: if ($check_section) {
546: my $section=&Apache::lonnet::getsection($uname,$udom);
547: if ($section eq $check_section) {
548: &Apache::lonnet::logthis("my sec");
549: next;
550: }
551: }
552: my $slot=$queuedata->{$key}[0];
553: my %slot_data=&Apache::lonnet::get_slot($slot);
554: if ($slot_data{'endtime'} > time) {
555: &Apache::lonnet::logthis("not time");
556: next;
557: }
558: if (&queue_key_locked($queue,$key,$cdom,$cnum)) {
559: &Apache::lonnet::logthis("someone already has um.");
560: next;
561: }
562: return $key;
563: }
564: return undef;
565: }
566:
567: sub find_mid_grade {
568: my ($queue,$symb,$cdom,$cnum)=@_;
569: my $todo=&Apache::lonnet::unescape($env{'form.gradingkey'});
570: my $me=$env{'user.name'}.'@'.$env{'user.domain'};
571: if ($todo) {
572: my $who=&queue_key_locked($queue,$todo,$cdom,$cnum);
573: if ($who eq $me) { return $todo; }
574: }
575: my $regexp="^$symb\0.*\0locked\$";
576: my %locks=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
577: foreach my $key (keys(%locks)) {
578: my $who=$locks{$key};
579: if ($who eq $me) {
580: $todo=$key;
581: $todo=~s/\0locked$//;
582: return $todo;
583: }
584: }
585: return undef;
586: }
587:
588: sub get_from_queue {
589: my ($queue)=@_;
590: my $result;
591: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
592: my $cnum=$env{'course.'.$cid.'.num'};
593: my $cdom=$env{'course.'.$cid.'.domain'};
594: my $todo;
595: # FIXME need to find if I am 'mid grading'
596: $todo=&find_mid_grade($queue,$symb,$cdom,$cnum);
597: &Apache::lonnet::logthis("found ".join(':',&decode_queue_key($todo)));
598: if ($todo) { return $todo; }
599: while (1) {
600: my $starttime=time;
601: &Apache::lonnet::put($queue,{"$symb\0timestamp"=>$starttime},
602: $cdom,$cnum);
603: &Apache::lonnet::logthis("$starttime");
604: my $regexp="^$symb\0queue\0";
605: my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
606: #make a pass looking for a user in my section
607: if ($env{'request.course.sec'}) {
608: &Apache::lonnet::logthis("sce");
609: $todo=&pick_from_queue_data($queue,$env{'request.course.sec'},
610: \%queue,$cdom,$cnum);
611: &Apache::lonnet::logthis("sce $todo");
612: }
613: # no one in our section so look for any user that is ready for grading
614: if (!$todo) {
615: &Apache::lonnet::logthis("no sce");
616: $todo=&pick_from_queue_data($env{'request.course.sec'},\%queue,
617: $cdom,$cnum);
618: &Apache::lonnet::logthis("no sce $todo");
619: }
620: # no user to grade
621: if (!$todo) { last; }
622: &Apache::lonnet::logthis("got $todo");
623: # otherwise found someone so lets try to lock them
624: my $success=&Apache::lonnet::newput($queue,
625: {"$todo\0locked"=>
626: $env{'user.name'}.'@'.$env{'user.domain'}},
627: $cdom,$cnum);
628: # someone else already picked them
629: &Apache::lonnet::logthis("success $todo");
630: if ($success ne 'ok') { next; }
631: my (undef,$endtime)=
632: &Apache::lonnet::get($queue,["$symb\0timestamp"],
633: $cdom,$cnum);
634: &Apache::lonnet::logthis("emd $endtime");
635: # someone else already modified the queue,
636: # perhaps our picked user wass already fully graded between
637: # when we picked him and when we locked his record? so lets
638: # double check.
639: if ($endtime != $starttime) {
640: my ($key,$value)=
641: &Apache::lonnet::get($queue,["$todo"],
642: $cdom,$cnum);
643: &Apache::lonnet::logthis("check $key .. $value");
644: if ($key eq $todo && ref($value)) {
645: } else {
646: &Apache::lonnet::del($queue,["$todo\0locked"],
647: $cdom,$cnum);
648: &Apache::lonnet::logthis("del");
649: next;
650: }
651: }
652: &Apache::lonnet::logthis("last $todo");
653: last;
654: }
655: return $todo;
656: }
657:
658: sub start_ClosingParagraph {
659: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
660: my $result;
661: if ($target eq 'web') {
662: } elsif ($target eq 'webgrade') {
663: &Apache::lonxml::startredirection();
664: }
665: return $result;
666: }
667:
668: sub end_ClosingParagraph {
669: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
670: my $result;
671: if ($target eq 'web') {
672: } elsif ($target eq 'webgrade') {
673: &Apache::lonxml::endredirection();
674: }
675: return $result;
676: }
677:
678: sub get_id {
679: my ($parstack,$safeeval)=@_;
680: my $id=&Apache::lonxml::get_param('id',$parstack,$safeeval);
681: if (!$id) { $id=$Apache::lonxml::curdepth; }
682: return $id;
683: }
684:
685: my %dimension;
686: sub start_Dimension {
687: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
688: undef(%dimension);
689: my $dim_id=&get_id($parstack,$safeeval);
690: $Apache::bridgetask::dimension=$dim_id;
691: push(@Apache::bridgetask::dimensionlist,$dim_id);
692: undef(@Apache::bridgetask::instance);
693: $Apache::bridgetask::dimensionmandatory{$dim_id}=
694: &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
695: return '';
696: }
697:
698: sub get_instance {
699: #FIXME just grabbing the first one for now, need
700: #to randomly pick one until all have been seen
701: #then start repicking
702: &Apache::response::pushrandomnumber();
703: my @order=&Math::Random::random_permutation(@{$dimension{'instances'}});
704: my $num=@order;
705: my $version=&get_version();
706: my $which=($version-1)%$num;
707: return $order[$which];
708: }
709:
710: {
711: my $last_link;
712: sub end_Dimension {
713: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
714: my $result;
715: my $dim=&get_id($parstack,$safeeval);
716: my $instance=&get_instance();
717: my $version=&get_version();
718: if ($target eq 'web') {
719: $result=$dimension{'intro'}.$dimension{$instance.'.text'};
720: if ($Apache::lonhomework::history{"resource.$version.status"} eq 'pass' ||
721: $Apache::lonhomework::history{"resource.$version.status"} eq 'fail') {
722: foreach my $id (@{$dimension{$instance.'.criterias'}}) {
723: my $status=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"};
724: my $comment=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"};
725: $result.='<table border="1"><tr><td>';
726: if ($status eq 'fail') {
727: $result.='<font color="red">'.&mt('Did not pass').'</font>';
728: } elsif ($status eq 'pass') {
729: $result.='<font color="green">'.&mt('Passed').'</font>';
730: } else {
731: &Apache::lonxml::error("Student viewing a graded bridgetask was show a status of $status");
732: }
733: $result.='</td></tr><tr><td>';
734: if ($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}) {
735: $result.=&mt('Comment from grader: ').$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}.'</td></tr><tr><td>';
736: }
737: $result.=$dimension{$instance.'.criteria.'.$id}.
738: '</td></tr></table>';
739: }
740: }
741: } elsif ($target eq 'webgrade') {
742: foreach my $id (@{$dimension{$instance.'.criterias'}}) {
743: my $link='criteria_'.$instance.'_'.$id;
744: my $status=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"};
745: $result.='<tr><td width="100%" valign="top">'.
746: '<a name="'.$link.'" />'.
747: '<a name="next_'.$last_link.'" />'.
748: '<br /><textarea enabled="false" style="width:100%" rows="8" width="25" wrap="hard">'.$dimension{$instance.'.criteria.'.$id}.'</textarea>'.
749: #$dimension{$instance.'.criteria.'.$id}.
750: '</td>'.
751: '<td><nobr>Additional Comment for Student</nobr> <br />'.
752: '<textarea style="width:100%" rows="8" width="25" wrap="hard" name="HWVAL_comment_'.$link.'">'.&HTML::Entities::encode($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}).'</textarea>'.
753: '</td>'.
754: '<td>'.
755: '<nobr><label><input type="radio" name="HWVAL_'.$link.'" value="ungraded" '.($status eq 'ungraded' || !$status ? 'checked="checked"':'').'/>'.&mt('Ungraded').'</label></nobr><br />'.
756: '<label><input type="radio" name="HWVAL_'.$link.'" value="pass" '.($status eq 'pass' ? 'checked="checked"':'').' />'.&mt('Pass').'</label><br />'.
757: '<label><input type="radio" name="HWVAL_'.$link.'" value="fail" '.($status eq 'fail' ? 'checked="checked"':'').' />'.&mt('Fail').'</label><br />'.
758: '<label><input type="radio" name="HWVAL_'.$link.'" value="review" '.($status eq 'review' ? 'checked="checked"':'').' />'.&mt('Review').'</label><br />'.
759: '</td>'.
760: '<td>'.
761: '<a href="#'.$last_link.'">Prev</a><br />'.
762: '<a href="#next_'.$link.'">Next</a><br /><br /><br />'.
763: '<input type="submit" name="next" value="'.
764: &mt('Done').'" /> '.
765: '<input type="submit" name="stop" value="'.
766: &mt('Stop').'" /> '.
767: '</td></tr>';
768: $result.='<tr><td colspan="4">';
769: my (undef,undef,$udom,$uname) = &Apache::lonxml::whichuser();
770: my $file_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio';
771: foreach my $partial_file (split(',',$Apache::lonhomework::history{"resource.$version.bridgetask.portfiles"})) {
772: my $file=$file_url.$partial_file;
773: &Apache::lonnet::allowuploaded('/adm/bridgetask',$file);
774: $result.='<a href="'.$file.'" target="lonGRDs"><img src="'.
775: &Apache::loncommon::icon($file).'" border=0"> '.$file.
776: '</a>';
777: }
778: $result.='</td></tr>';
779: $last_link=$link;
780: }
781: } elsif ($target eq 'grade' && $env{'form.webgrade'}) {
782: my $optional_passed=0;
783: my $mandatory_failed=0;
784: my $ungraded=0;
785: my $review=0;
786: foreach my $id (@{$dimension{$instance.'.criterias'}}) {
787: my $status=$Apache::lonhomework::results{"resource.$version.$dim.$instance.$id.status"}=$env{'form.HWVAL_criteria_'.$instance.'_'.$id};
788: $Apache::lonhomework::results{"resource.$version.$dim.$instance.$id.comment"}=$env{'form.HWVAL_comment_criteria_'.$instance.'_'.$id};
789: my $mandatory=($dimension{$instance.'.criteria.'.$id.'.mandatory'} ne 'N');
790: if ($status eq 'pass') {
791: if (!$mandatory) { $optional_passed++; }
792: } elsif ($status eq 'fail') {
793: if ($mandatory) { $mandatory_failed++; }
794: } elsif ($status eq 'review') {
795: $review++;
796: } elsif ($status eq 'ungraded') {
797: $ungraded++;
798: } else {
799: &Apache::lonxml::error("got weird status --$status--");
800: }
801: }
802: if ($optional_passed < $dimension{$instance.'.optionalrequired'}) {
803: $mandatory_failed++;
804: }
805: &Apache::lonxml::debug("all instance ".join(':',@{$dimension{$instance.'.criterias'}})." results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
806: if ($review) {
807: $Apache::lonhomework::results{"resource.$version.$dim.status"}=
808: 'review';
809: } elsif ($ungraded) {
810: $Apache::lonhomework::results{"resource.$version.$dim.status"}=
811: 'ungraded';
812: } elsif ($mandatory_failed) {
813: $Apache::lonhomework::results{"resource.$version.$dim.status"}=
814: 'fail';
815: } else {
816: $Apache::lonhomework::results{"resource.$version.$dim.status"}=
817: 'pass';
818: }
819: }
820: return $result;
821: }
822: }
823:
824: sub start_IntroParagraph {
825: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
826: my $result;
827: if ($target eq 'web' || $target eq 'webgrade') {
828: if ($tagstack->[-2] eq 'Dimension' || $target eq 'webgrade') {
829: &Apache::lonxml::startredirection();
830: }
831: }
832: return $result;
833: }
834:
835: sub end_IntroParagraph {
836: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
837: my $result;
838: if ($target eq 'web' || $target eq 'webgrade') {
839: if ($tagstack->[-2] eq 'Dimension' || $target eq 'webgrade') {
840: $dimension{'intro'}=&Apache::lonxml::endredirection();
841: }
842: }
843: return $result;
844: }
845:
846: sub start_Instance {
847: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
848: my $id=&get_id($parstack,$safeeval);
849: push(@{$dimension{'instances'}},$id);
850: push(@Apache::bridgetask::instance,$id);
851: push(@Apache::bridgetask::instancelist,$id);
852: $dimension{$id.'.optionalrequired'}=
853: &Apache::lonxml::get_param('OptionalRequired',$parstack,$safeeval);
854: return '';
855: }
856:
857: sub end_Instance {
858: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
859: return '';
860: }
861:
862: sub start_InstanceText {
863: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
864: if ($target eq 'web' || $target eq 'webgrade') {
865: &Apache::lonxml::startredirection();
866: }
867: return '';
868: }
869:
870: sub end_InstanceText {
871: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
872: my $instance_id=$Apache::bridgetask::instance[-1];
873: if ($target eq 'web' || $target eq 'webgrade') {
874: $dimension{$instance_id.'.text'}=&Apache::lonxml::endredirection();
875: }
876: return '';
877: }
878:
879: sub start_Criteria {
880: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
881: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {
882: &Apache::lonxml::startredirection();
883: }
884: return '';
885: }
886:
887: sub end_Criteria {
888: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
889: my $instance_id=$Apache::bridgetask::instance[-1];
890: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {
891: my $criteria=&Apache::lonxml::endredirection();
892: my $id=&get_id($parstack,$safeeval);
893: $dimension{$instance_id.'.criteria.'.$id}=$criteria;
894: $dimension{$instance_id.'.criteria.'.$id.'.mandatory'}=
895: &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
896: push(@{$dimension{$instance_id.'.criterias'}},$id);
897: }
898: return '';
899: }
900:
901: sub proctor_validation_screen {
902: my ($slot) = @_;
903: my (undef,undef,$domain,$user) = &Apache::lonxml::whichuser();
904: my $url=&Apache::lonnet::studentphoto($domain,$user,'jpg');
905: $user=$env{'form.proctorname'};
906: if ($env{'form.proctordomain'}) { $domain=$env{'form.proctordomain'}; }
907: my $msg;
908: if ($env{'form.proctorpassword'}) {
909: $msg='<p><font color="red">'.&mt("Failed to authenticate the proctor.")
910: .'</font></p>';
911: }
912: my $result= (<<ENDCHECKOUT);
913: <h2>Proctor Validation</h2>
914: <p>Your room's proctor needs to validate your access to this resource.</p>
915: $msg
916: <form name="checkout" method="POST" action="$env{'request.uri'}">
917: <input type="hidden" name="validate" value="yes" />
918: <input type="hidden" name="submitted" value="yes" />
919: <table>
920: <tr><td>Proctor's Username:</td><td><input type="string" name="proctorname" value="$user" /></td></tr>
921: <tr><td>Password:</td><td><input type="password" name="proctorpassword" value="" /></td></tr>
922: <tr><td>Proctor's Domain:</td><td><input type="string" name="proctordomain" value="$domain" /></td></tr>
923: </table>
924: <input type="submit" name="checkoutbutton" value="Validate" /><br />
925: Student who should be logged in is:<br />
926: <img src="$url" /><br />
927: </form>
928: ENDCHECKOUT
929: return $result;
930: }
931:
932: 1;
933: __END__
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