Annotation of loncom/homework/bridgetask.pm, revision 1.15
1.1 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
3: #
1.15 ! albertel 4: # $Id: bridgetask.pm,v 1.14 2005/05/03 00:05:41 albertel Exp $
1.1 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
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 );
1.9 albertel 40:
1.1 albertel 41: BEGIN {
42: &Apache::lonxml::register('Apache::bridgetask',('Task','IntroParagraph','Dimension','Instance','InstanceText','Criteria','ClosingParagraph'));
43: }
44:
1.9 albertel 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: # list of all current Instance ids
52: @Apache::bridgetask::instance=();
53: # list of all Instance ids seen in this problem
54: @Apache::bridgetask::instancelist=();
1.15 ! albertel 55: # key of queud user data that we are currently grading
! 56: $Apache::bridgetask::queue_key='';
1.9 albertel 57: }
58:
1.4 albertel 59: sub proctor_check_auth {
60: my ($slot)=@_;
1.11 albertel 61: my $user=$env{'form.proctorname'};
62: my $domain=$env{'form.proctordomain'};
1.4 albertel 63:
64: my @allowed=split(",",$slot->{'proctor'});
65: foreach my $possible (@allowed) {
66: my ($puser,$pdom)=(split('@',$possible));
67: if ($puser eq $user && $pdom eq $domain) {
1.11 albertel 68: my $authhost=&Apache::lonnet::authenticate($puser,$env{'form.proctorpassword'},$pdom);
1.4 albertel 69: if ($authhost ne 'no_host') {
70: $Apache::lonhomework::results{'resource.checkedin'}=
71: $user.'@'.$domain;
72: return 1;
73: }
74: }
75: }
76: return 0;
77: }
78:
1.8 albertel 79: sub add_previous_version_button {
80: my $result;
1.9 albertel 81: $result.=&mt(' Show a previously done version: [_1]','<select name="previousversion">
1.8 albertel 82: <option>Pick one</option>
1.9 albertel 83: </select>');
1.8 albertel 84: return $result;
85: }
86:
1.13 albertel 87: sub add_grading_button {
88: my $result;
89: $result.=' <input type="submit" name="gradeasubmission" value="'.
90: &mt("Get a submission to grade").'" />';
91: $result.='<input type="hidden" name="grade_target" value="webgrade" />';
92: return $result;
93: }
94:
1.1 albertel 95: sub start_Task {
96: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
97:
1.4 albertel 98: &Apache::structuretags::initialize_storage();
99: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
100: my ($status,$accessmsg,$slot);
101: $Apache::lonhomework::parsing_a_task=1;
1.1 albertel 102: #should get back a <html> or the neccesary stuff to start XML/MathML
103: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
104: &Apache::structuretags::page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
105:
1.8 albertel 106: if ($target eq 'web') {
107: $body_tag_start.=&add_previous_version_button();
1.13 albertel 108: if ($Apache::lonhomework::modifygrades) {
109: $body_tag_start.='<form name="gradesubmission" method="POST" action="';
110: my $uri=$env{'request.uri'};
111: if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
112: $body_tag_start.=$uri.'">'.&add_grading_button()."</form>";
113: }
1.8 albertel 114: }
1.1 albertel 115: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
116: $target eq 'tex') {
1.14 albertel 117: ($status,$accessmsg,my $slot_name,$slot) =
1.4 albertel 118: &Apache::lonhomework::check_task_access('0');
1.9 albertel 119: push(@Apache::inputtags::status,$status);
1.14 albertel 120: $Apache::inputtags::slot_name=$slot_name;
1.1 albertel 121: my $expression='$external::datestatus="'.$status.'";';
122: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
123: &Apache::run::run($expression,$safeeval);
124: &Apache::lonxml::debug("Got $status");
125: if (( $status eq 'CLOSED' ) ||
126: ( $status eq 'BANNED') ||
127: ( $status eq 'UNAVAILABLE') ||
1.3 albertel 128: ( $status eq 'NOT_IN_A_SLOT') ||
1.4 albertel 129: ( $status eq 'NEEDS_CHECKIN') ||
1.1 albertel 130: ( $status eq 'INVALID_ACCESS')) {
131: my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
132: if ( $target eq "web" ) {
1.4 albertel 133: $result.= $head_tag_start.'</head>'.$body_tag_start;
134: my $msg;
1.1 albertel 135: if ($status eq 'UNAVAILABLE') {
136: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.3 albertel 137: } elsif ($status eq 'NOT_IN_A_SLOT') {
138: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.4 albertel 139: } elsif ($status eq 'NEEDS_CHECKIN') {
140: $msg.='<h1>'.&mt('You need the Proctor to validate you.').
141: '</h1>'.&proctor_validation_screen($slot);
1.1 albertel 142: } elsif ($status ne 'NOT_YET_VIEWED') {
143: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
144: }
145: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
146: $msg.='The problem '.$accessmsg;
147: }
148: $result.=$msg.'<br />';
149: } elsif ($target eq 'tex') {
150: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
151: if ($status eq 'UNAVAILABLE') {
152: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
153: } else {
154: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
155: }
1.4 albertel 156: } elsif ($target eq 'grade') {
157: if ($status eq 'NEEDS_CHECKIN') {
158: if (&proctor_check_auth($slot)) {
159: #FIXME immeadiatly add this to the grading queue
160: # with slot->{'endtime'} for when grading can
161: # begin on this resource
162: }
163: }
1.1 albertel 164: }
165: } elsif ($target eq 'web') {
166: my $name= &Apache::structuretags::get_resource_name($parstack,$safeeval);
167: $result.="$head_tag_start<title>$name</title></head>
168: $body_tag_start \n $form_tag_start".
169: '<input type="hidden" name="submitted" value="yes" />';
170: # if we are viewing someone else preserve that info
1.11 albertel 171: if (defined $env{'form.grade_symb'}) {
1.1 albertel 172: foreach my $field ('symb','courseid','domain','username') {
173: $result .= '<input type="hidden" name="grade_'.$field.
1.11 albertel 174: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.1 albertel 175: }
176: }
177: }
1.13 albertel 178: } elsif ($target eq 'webgrade') {
1.15 ! albertel 179: $result.=$head_tag_start.$body_tag_start.$form_tag_start;
1.14 albertel 180: $result.=&show_queue();
1.15 ! albertel 181: my $todo=&get_from_queue();
! 182: if ($todo) {
! 183: my ($symb,$uname,$udom)=&decode_queue_key($todo);
! 184: $result.="\n".'<table><tr><td>Found'.
! 185: $symb.':'.$uname.':'.$udom.'</td></tr></table>';
! 186: $result.='<input type="hidden" name="gradingkey" value="'.
! 187: &HTML::Entites::encode($todo).'" />';
! 188: $Apache::bridgetask::queue_key=$todo;
! 189: } else {
! 190: $result.="\n".
! 191: '<table><tr><td>No user to be graded.</td></tr></table>';
! 192: my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
! 193: }
! 194:
1.1 albertel 195: } else {
196: # page_start returned a starting result, delete it if we don't need it
197: $result = '';
198: }
199: return $result;
200: }
201:
202: sub end_Task {
203: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
204: my $result='';
205: my $status=$Apache::inputtags::status['-1'];
206: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1.15 ! albertel 207: $target eq 'tex') {
1.1 albertel 208: if (
1.11 albertel 209: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.1 albertel 210: ($target eq 'answer') || ($target eq 'tex')
211: ) {
212: if ($target eq 'web') {
1.9 albertel 213: if ($status eq 'CAN_ANSWER') {
1.15 ! albertel 214: $result.="\n".'<table border="1">'.
1.9 albertel 215: &Apache::inputtags::file_selector('0',"bridgetask","*",
216: 'portfolioonly').
217: "</table>";
218: $result.=&Apache::inputtags::gradestatus('0');
219: }
1.13 albertel 220: }
221: if ($target eq 'web' || $target eq 'webgrade') {
1.1 albertel 222: $result.=&Apache::lonxml::xmlend().'</html>';
223: }
224: }
225: if ($target eq 'grade') {
1.12 albertel 226: my $award='SUBMITTED';
1.14 albertel 227: &Apache::essayresponse::file_submission('0','bridgetask','portfiles',\$award);
228: if ($award eq 'SUBMITTED' &&
229: $Apache::lonhomework::results{"resource.0.bridgetask.portfiles"}) {
1.10 albertel 230: $Apache::lonhomework::results{"resource.0.tries"}=
231: 1+$Apache::lonhomework::history{"resource.0.tries"};
232: }
1.14 albertel 233: $Apache::lonhomework::results{"resource.0.award"}=$award;
1.4 albertel 234: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
235: &Apache::structuretags::finalize_storage();
1.14 albertel 236: if ($award eq 'SUBMITTED') {
237: &add_to_queue();
238: }
1.1 albertel 239: }
1.15 ! albertel 240: } elsif ($target eq 'webgrade') {
! 241: $result.="\n<hr />";
! 242: $result.='<input type="submit" name="next" value="'.
! 243: &mt('Save & Next').'" /> ';
! 244: $result.='<input type="submit" name="end" value="'.
! 245: &mt('Save & Stop Grading').'" /> ';
! 246: $result.='<input type="submit" name="end" value="'.
! 247: &mt('Throw Away & Stop Grading').'" /> ';
! 248: $result.='</form>'.&Apache::loncommon::endbodytag().'</html>';
1.1 albertel 249: } elsif ($target eq 'meta') {
1.2 albertel 250: $result.='<parameter part="0" package="Task"></parameter>'."\n";
1.1 albertel 251: #$result.=&Apache::response::meta_part_order();
252: #$result.=&Apache::response::meta_response_order();
253: }
1.4 albertel 254: undef($Apache::lonhomework::parsing_a_task);
1.1 albertel 255: return $result;
256: }
257:
1.14 albertel 258: sub add_to_queue {
259: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
260: my $cnum=$env{'course.'.$cid.'.num'};
261: my $cdom=$env{'course.'.$cid.'.domain'};
262: my %data;
263: #$data{"$symb\0timestamp"}=time;
264: $data{"$symb\0queue\0$uname\@$udom"}=[$Apache::inputtags::slot_name];
265: &Apache::lonnet::put('gradingqueue',\%data,$cdom,$cnum);
266: }
267:
268: sub show_queue {
269: my $result;
270: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
271: my $cnum=$env{'course.'.$cid.'.num'};
272: my $cdom=$env{'course.'.$cid.'.domain'};
273: my $regexp="^$symb\0queue";
274: my %queue=&Apache::lonnet::dump('gradingqueue',$cdom,$cnum,$regexp);
1.15 ! albertel 275: $result.="\n<h3>Current Queue</h3><table><tr><th>resource</th><th>user</th><th>Time available for grading</th></tr>";
1.14 albertel 276: foreach my $key (sort(keys(%queue))) {
277: my ($symb,undef,$user) = split("\0",$key);
278: my ($uname,$udom) = split('@',$user);
279: my $title=&Apache::lonnet::gettitle($symb);
280: $result.="<tr><td>$title</td><td>$uname</td><td>";
281: my $slot=$queue{$key}->[0];
282: my %slot_data=&Apache::lonnet::get_slot($slot);
283: $result.="End time: ".&Apache::lonlocal::locallocaltime($slot_data{'endtime'})."</td></tr>";
284: }
1.15 ! albertel 285: $result.="</table><hr />\n";
1.14 albertel 286: return $result;
287: }
288:
289: sub decode_queue_key {
290: my ($key)=@_;
291: my ($symb,undef,$user) = split("\0",$key);
292: my ($uname,$udom) = split('@',$user);
293: return ($symb,$uname,$udom);
294: }
295:
296: sub queue_key_locked {
1.15 ! albertel 297: my ($key,$cdom,$cnum)=@_;
1.14 albertel 298: my ($key_locked,$value)=
299: &Apache::lonnet::get('gradingqueue',["$key\0locked"],$cdom,$cnum);
300: if ($key_locked eq "$key\0locked") {
301: return $value;
302: }
303: return undef;
304: }
305:
306: sub pick_from_queue_data {
1.15 ! albertel 307: my ($check_section,$queue,$cdom,$cnum)=@_;
1.14 albertel 308: foreach my $key (sort(keys(%$queue))) {
309: my ($symb,$uname,$udom)=&decode_queue_key($key);
310: if ($check_section) {
311: my $section=&Apache::lonnet::getsection($uname,$udom);
1.15 ! albertel 312: if ($section ne $check_section) {
! 313: &Apache::lonnet::logthis("not my sec");
! 314: next;
! 315: }
1.14 albertel 316: }
317: my $slot=$queue->{$key}[0];
318: my %slot_data=&Apache::lonnet::get_slot($slot);
1.15 ! albertel 319: if ($slot_data{'endtime'} > time) {
! 320: &Apache::lonnet::logthis("not time");
! 321: next;
! 322: }
! 323: if (&queue_key_locked($key,$cdom,$cnum)) {
! 324: &Apache::lonnet::logthis("someone already has um.");
! 325: next;
! 326: }
1.14 albertel 327: return $key;
328: }
329: return undef;
330: }
331:
1.15 ! albertel 332: sub find_mid_grade {
! 333: my ($symb,$cdom,$cnum)=@_;
! 334: my $todo=$env{'form.gradingkey'};
! 335: my $me=$env{'user.name'}.'@'.$env{'user.domain'};
! 336: if ($todo) {
! 337: my $who=&queue_key_locked($todo,$cdom,$cnum);
! 338: if ($who eq $me) { return $todo; }
! 339: }
! 340: my $regexp="^$symb\0.*\0locked\$";
! 341: my %locks=&Apache::lonnet::dump('gradingqueue',$cdom,$cnum,$regexp);
! 342: foreach my $key (keys(%locks)) {
! 343: my $who=$locks{$key};
! 344: if ($who eq $me) {
! 345: $todo=$key;
! 346: $todo=~s/\0locked$//;
! 347: return $todo;
! 348: }
! 349: }
! 350: return undef;
! 351: }
! 352:
1.14 albertel 353: sub get_from_queue {
354: my $result;
355: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
356: my $cnum=$env{'course.'.$cid.'.num'};
357: my $cdom=$env{'course.'.$cid.'.domain'};
358: my $todo;
1.15 ! albertel 359: # FIXME need to find if I am 'mid grading'
! 360: $todo=&find_mid_grade($symb,$cdom,$cnum);
! 361: &Apache::lonnet::logthis("found ".join(':',&decode_queue_key($todo)));
1.14 albertel 362: while (1) {
363: my $starttime=time;
364: &Apache::lonnet::put('gradingqueue',{"$symb\0timestamp"=>$starttime},
365: $cdom,$cnum);
1.15 ! albertel 366: &Apache::lonnet::logthis("$starttime");
1.14 albertel 367: my $regexp="^$symb\0queue\0";
368: my %queue=&Apache::lonnet::dump('gradingqueue',$cdom,$cnum,$regexp);
369: #make a pass looking for a user in my section
370: if ($env{'request.course.sec'}) {
1.15 ! albertel 371: &Apache::lonnet::logthis("sce");
! 372: $todo=&pick_from_queue_data($env{'request.course.sec'},\%queue,
! 373: $cdom,$cnum);
! 374: &Apache::lonnet::logthis("sce $todo");
1.14 albertel 375: }
376: # no one in our section so look for any user that is ready for grading
377: if (!$todo) {
1.15 ! albertel 378: &Apache::lonnet::logthis("no sce");
! 379: $todo=&pick_from_queue_data($env{'request.course.sec'},\%queue,
! 380: $cdom,$cnum);
! 381: &Apache::lonnet::logthis("no sce $todo");
1.14 albertel 382: }
383: # no user to grade
384: if (!$todo) { last; }
1.15 ! albertel 385: &Apache::lonnet::logthis("got $todo");
1.14 albertel 386: # otherwise found someone so lets try to lock them
387: my $success=&Apache::lonnet::newput('gradingqueue',
388: {"$todo\0locked"=>
389: $env{'user.name'}.'@'.$env{'user.domain'}},
390: $cdom,$cnum);
391: # someone else already picked them
1.15 ! albertel 392: &Apache::lonnet::logthis("success $todo");
1.14 albertel 393: if ($success ne 'ok') { next; }
394: my (undef,$endtime)=
395: &Apache::lonnet::get('gradingqueue',["$symb\0timestamp"],
396: $cdom,$cnum);
1.15 ! albertel 397: &Apache::lonnet::logthis("emd $endtime");
1.14 albertel 398: # someone else already modified the queue,
399: # perhaps our picked user wass already fully graded between
400: # when we picked him and when we locked his record? so lets
401: # double check.
402: if ($endtime != $starttime) {
403: my ($key,$value)=
404: &Apache::lonnet::get('gradingqueue',["$todo"],
405: $cdom,$cnum);
1.15 ! albertel 406: &Apache::lonnet::logthis("check $key .. $value");
1.14 albertel 407: if ($key eq $todo && ref($value)) {
408: } else {
409: &Apache::lonnet::del('gradingqueue',["$todo\0locked"],
410: $cdom,$cnum);
1.15 ! albertel 411: &Apache::lonnet::logthis("del");
1.14 albertel 412: next;
413: }
414: }
1.15 ! albertel 415: &Apache::lonnet::logthis("last $todo");
1.14 albertel 416: last;
417: }
418: return $todo;
419: }
420:
1.1 albertel 421: sub start_ClosingParagraph {
422: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
423: my $result;
424: if ($target eq 'web') {
1.13 albertel 425: } elsif ($target eq 'webgrade') {
426: &Apache::lonxml::startredirection();
1.1 albertel 427: }
428: return $result;
429: }
430:
431: sub end_ClosingParagraph {
432: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
433: my $result;
434: if ($target eq 'web') {
1.13 albertel 435: } elsif ($target eq 'webgrade') {
436: &Apache::lonxml::endredirection();
1.1 albertel 437: }
438: return $result;
439: }
440:
441: my %dimension;
442: sub start_Dimension {
443: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
444: undef(%dimension);
1.9 albertel 445: my $dim_id=$Apache::lonxml::curdepth;
446: $Apache::bridgetask::dimension=$dim_id;
447: push(@Apache::bridgetask::dimensionlist,$dim_id);
448: undef(@Apache::bridgetask::instance);
1.1 albertel 449: return '';
450: }
451:
1.13 albertel 452: sub get_instance {
453: #FIXME just grabbing the first one for now, need
454: #to randomly pick one until all have been seen
455: #then start repicking
456: &Apache::response::pushrandomnumber();
457: my @order=&Math::Random::random_permutation(@{$dimension{'instances'}});
458: return $order[0];
459: }
460:
1.1 albertel 461: sub end_Dimension {
462: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
463: my $result;
464: if ($target eq 'web') {
1.13 albertel 465: my $instance=&get_instance();
1.9 albertel 466: $result=$dimension{'intro'}.$dimension{$instance.'.text'};
1.13 albertel 467: } elsif ($target eq 'webgrade') {
468: my $instance=&get_instance();
1.15 ! albertel 469: $result.="\n".'<table>';
1.13 albertel 470: foreach my $id (@{$dimension{$instance.'.criterias'}}) {
471: $result.='<tr><td>'.
472: $dimension{$instance.'.criteria.'.$id}.'</td></tr>';
473: }
474: $result.='</table>';
1.1 albertel 475: }
476: return $result;
477: }
478:
479: sub start_IntroParagraph {
480: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
481: my $result;
1.13 albertel 482: if ($target eq 'web' || $target eq 'webgrade') {
483: if ($tagstack->[-2] eq 'Dimension' || $target eq 'webgrade') {
1.1 albertel 484: &Apache::lonxml::startredirection();
485: }
486: }
487: return $result;
488: }
489:
490: sub end_IntroParagraph {
491: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
492: my $result;
1.13 albertel 493: if ($target eq 'web' || $target eq 'webgrade') {
494: if ($tagstack->[-2] eq 'Dimension' || $target eq 'webgrade') {
1.1 albertel 495: $dimension{'intro'}=&Apache::lonxml::endredirection();
496: }
497: }
498: return $result;
499: }
500:
501: sub start_Instance {
502: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
503: push(@{$dimension{'instances'}},$Apache::lonxml::curdepth);
1.9 albertel 504: push(@Apache::bridgetask::instance,$Apache::lonxml::curdepth);
505: push(@Apache::bridgetask::instancelist,$Apache::lonxml::curdepth);
1.1 albertel 506: return '';
507: }
508:
509: sub end_Instance {
510: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
511: return '';
512: }
513:
514: sub start_InstanceText {
515: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.13 albertel 516: if ($target eq 'web' || $target eq 'webgrade') {
1.1 albertel 517: &Apache::lonxml::startredirection();
518: }
519: return '';
520: }
521:
522: sub end_InstanceText {
523: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.9 albertel 524: my $instance_id=$Apache::bridgetask::instance[-1];
1.13 albertel 525: if ($target eq 'web' || $target eq 'webgrade') {
1.1 albertel 526: $dimension{$instance_id.'.text'}=&Apache::lonxml::endredirection();
527: }
528: return '';
529: }
530:
531: sub start_Criteria {
532: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.13 albertel 533: if ($target eq 'web' || $target eq 'webgrade') {
1.1 albertel 534: &Apache::lonxml::startredirection();
535: }
536: return '';
537: }
538:
539: sub end_Criteria {
540: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.9 albertel 541: my $instance_id=$Apache::bridgetask::instance[-1];
1.13 albertel 542: if ($target eq 'web' || $target eq 'webgrade') {
1.1 albertel 543: my $criteria=&Apache::lonxml::endredirection();
544: my $id=$Apache::lonxml::curdepth;
545: $dimension{$instance_id.'.criteria.'.$id}=$criteria;
546: push(@{$dimension{$instance_id.'.criterias'}},$id);
547: }
548: return '';
549: }
550:
1.4 albertel 551: sub proctor_validation_screen {
552: my ($slot) = @_;
553: my (undef,undef,$domain,$user) = &Apache::lonxml::whichuser();
1.5 albertel 554: my $url=&Apache::lonnet::studentphoto($domain,$user,'jpg');
1.11 albertel 555: $user=$env{'form.proctorname'};
556: if ($env{'form.proctordomain'}) { $domain=$env{'form.proctordomain'}; }
1.4 albertel 557: my $msg;
1.11 albertel 558: if ($env{'form.proctorpassword'}) {
1.4 albertel 559: $msg='<p><font color="red">'.&mt("Failed to authenticate the proctor.")
560: .'</font></p>';
561: }
562: my $result= (<<ENDCHECKOUT);
563: <h2>Proctor Validation</h2>
564: <p>Your room's proctor needs to validate your access to this resource.</p>
565: $msg
1.11 albertel 566: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.4 albertel 567: <input type="hidden" name="validate" value="yes" />
568: <input type="hidden" name="submitted" value="yes" />
569: <table>
570: <tr><td>Proctor's Username:</td><td><input type="string" name="proctorname" value="$user" /></td></tr>
571: <tr><td>Password:</td><td><input type="password" name="proctorpassword" value="" /></td></tr>
1.6 albertel 572: <tr><td>Proctor's Domain:</td><td><input type="string" name="proctordomain" value="$domain" /></td></tr>
1.4 albertel 573: </table>
574: <input type="submit" name="checkoutbutton" value="Validate" /><br />
575: Student who should be logged in is:<br />
1.5 albertel 576: <img src="$url" /><br />
1.4 albertel 577: </form>
578: ENDCHECKOUT
579: return $result;
580: }
581:
1.1 albertel 582: 1;
583: __END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to bridgetask.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / homework