1: # The LearningOnline Network with CAPA
2: # The LON-CAPA Homework handler
3: #
4: # $Id: lonhomework.pm,v 1.373 2018/09/18 14:30:19 raeburn Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27:
28:
29: package Apache::lonhomework;
30: use strict;
31: use Apache::style();
32: use Apache::lonxml();
33: use Apache::lonnet;
34: use Apache::lonplot();
35: use Apache::inputtags();
36: use Apache::structuretags();
37: use Apache::randomlabel();
38: use Apache::response();
39: use Apache::hint();
40: use Apache::outputtags();
41: use Apache::caparesponse();
42: use Apache::radiobuttonresponse();
43: use Apache::optionresponse();
44: use Apache::imageresponse();
45: use Apache::essayresponse();
46: use Apache::externalresponse();
47: use Apache::rankresponse();
48: use Apache::matchresponse();
49: use Apache::chemresponse();
50: use Apache::functionplotresponse();
51: use Apache::drawimage();
52: use Apache::loncapamath();
53: use Apache::Constants qw(:common);
54: use Apache::loncommon();
55: use Apache::lonparmset();
56: use Apache::lonnavmaps();
57: use Apache::lonlocal;
58: use LONCAPA qw(:DEFAULT :match);
59: use LONCAPA::ltiutils();
60: use Time::HiRes qw( gettimeofday tv_interval );
61: use HTML::Entities();
62: use File::Copy();
63:
64: # FIXME - improve commenting
65:
66: my $registered_cleanup;
67:
68: BEGIN {
69: &Apache::lonxml::register_insert();
70: }
71:
72:
73: =pod
74:
75: =item set_bubble_lines()
76:
77: Called at analysis time to set the bubble lines
78: hash for the problem.. This should be called in the
79: end_problemtype tag in analysis mode.
80:
81: We fetch the hash of part id counters from lonxml
82: and push them into analyze:{part_id.bubble_lines}.
83:
84: =cut
85:
86: sub set_bubble_lines {
87: my %bubble_counters = &Apache::lonxml::get_bubble_line_hash();
88:
89: foreach my $key (keys(%bubble_counters)) {
90: $Apache::lonhomework::analyze{"$key.bubble_lines"} =
91: $bubble_counters{"$key"};
92: }
93: }
94:
95: #
96: # Decides what targets to render for.
97: # Implicit inputs:
98: # Various session environment variables:
99: # request.state - published - is a /res/ resource
100: # uploaded - is a /uploaded/ resource
101: # contruct - is a /priv/ resource
102: # form.grade_target - a form parameter requesting a specific target
103: sub get_target {
104: &Apache::lonxml::debug("request.state = $env{'request.state'}");
105: if( defined($env{'form.grade_target'})) {
106: &Apache::lonxml::debug("form.grade_target= $env{'form.grade_target'}");
107: } else {
108: &Apache::lonxml::debug("form.grade_target <undefined>");
109: }
110: if (($env{'request.state'} eq "published") ||
111: ($env{'request.state'} eq "uploaded")) {
112: if ( defined($env{'form.grade_target'} )
113: && ($env{'form.grade_target'} eq 'tex')) {
114: return ($env{'form.grade_target'});
115: } elsif ( defined($env{'form.grade_target'} )
116: && ($Apache::lonhomework::viewgrades eq 'F' )) {
117: return ($env{'form.grade_target'});
118: } elsif ( $env{'form.grade_target'} eq 'webgrade'
119: && ($Apache::lonhomework::queuegrade eq 'F' )) {
120: return ($env{'form.grade_target'});
121: } elsif ($env{'form.grade_target'} eq 'answer') {
122: if ($env{'form.answer_output_mode'} eq 'tex') {
123: return ($env{'form.grade_target'});
124: }
125: }
126: if ($env{'form.webgrade'} &&
127: ($Apache::lonhomework::modifygrades eq 'F'
128: || $Apache::lonhomework::queuegrade eq 'F' )) {
129: return ('grade','webgrade');
130: }
131: if ( defined($env{'form.submitted'}) &&
132: ( !defined($env{'form.newrandomization'}))) {
133: return ('grade', 'web');
134: } else {
135: return ('web');
136: }
137: } elsif ($env{'request.state'} eq "construct") {
138: #
139: # We are in construction space, editing and testing problems
140: #
141: if ( defined($env{'form.grade_target'}) ) {
142: return ($env{'form.grade_target'});
143: }
144: if ( defined($env{'form.preview'})) {
145: if ( defined($env{'form.submitted'})) {
146: #
147: # We are doing a problem preview
148: #
149: return ('grade', 'web');
150: } else {
151: return ('web');
152: }
153: } else {
154: if ($env{'form.problemstate'} eq 'WEB_GRADE') {
155: return ('grade','webgrade','answer');
156: } elsif ($env{'form.problemmode'} eq 'view') {
157: return ('grade','web','answer');
158: } elsif ($env{'form.problemmode'} eq 'saveview') {
159: return ('modified','web','answer');
160: } elsif ($env{'form.problemmode'} eq 'discard') {
161: return ('web','answer');
162: } elsif (($env{'form.problemmode'} eq 'saveedit') ||
163: ($env{'form.problemmode'} eq 'undo')) {
164: return ('modified','no_output_web','edit');
165: } elsif ($env{'form.problemmode'} eq 'edit') {
166: return ('no_output_web','edit');
167: } else {
168: return ('web');
169: }
170: }
171: #
172: # End of Authoring Space
173: #
174: }
175: #
176: # Huh? We are nowhere, so do nothing.
177: #
178: return ();
179: }
180:
181: sub setup_vars {
182: my ($target) = @_;
183: return ';'
184: # return ';$external::target='.$target.';';
185: }
186:
187: sub proctor_checked_in {
188: my ($slot_name,$slot,$type)=@_;
189: my @possible_proctors=split(",",$slot->{'proctor'});
190:
191: return 1 if (!@possible_proctors);
192:
193: my $key;
194: if ($type eq 'Task') {
195: my $version=$Apache::lonhomework::history{'resource.0.version'};
196: $key ="resource.$version.0.checkedin";
197: } elsif (($type eq 'problem') || ($type eq 'tool')) {
198: $key ='resource.0.checkedin';
199: }
200: # backward compatability, used to be username@domain,
201: # now is username:domain
202: my $who = $Apache::lonhomework::history{$key};
203: if ($who !~ /:/) {
204: $who =~ tr/@/:/;
205: }
206: foreach my $possible (@possible_proctors) {
207: if ($who eq $possible
208: && $Apache::lonhomework::history{$key.'.slot'} eq $slot_name) {
209: return 1;
210: }
211: }
212: return 0;
213: }
214:
215: sub check_slot_access {
216: my ($id,$type,$symb,$partlist)=@_;
217:
218: # does it pass normal muster
219: my ($status,$datemsg)=&check_access($id,$symb);
220:
221: my $useslots = &Apache::lonnet::EXT("resource.0.useslots",$symb);
222: if ($useslots ne 'resource' && $useslots ne 'map'
223: && $useslots ne 'map_map') {
224: return ($status,$datemsg);
225: }
226:
227: my $checkin = 'resource.0.checkedin';
228: my $version;
229: if ($type eq 'Task') {
230: $version=$Apache::lonhomework::history{'resource.version'};
231: $checkin = "resource.$version.0.checkedin";
232: }
233: my $checkedin = $Apache::lonhomework::history{$checkin};
234: my ($returned_slot,$slot_name,$checkinslot,$ipused,$blockip,$now,$ip,
235: $consumed_uniq);
236: $now = time;
237: $ip=$ENV{'REMOTE_ADDR'} || $env{'request.host'};
238:
239: if ($checkedin) {
240: $checkinslot = $Apache::lonhomework::history{"$checkin.slot"};
241: my %slot=&Apache::lonnet::get_slot($checkinslot);
242: $consumed_uniq = $slot{'uniqueperiod'};
243: if ($slot{'iptied'}) {
244: $ipused = $Apache::lonhomework::history{"$checkin.ip"};
245: unless (($ip ne '') && ($ipused eq $ip)) {
246: $blockip = $slot{'iptied'};
247: $slot_name = $checkinslot;
248: $returned_slot = \%slot;
249: }
250: }
251: }
252:
253: if ($status eq 'SHOW_ANSWER') {
254: if ($blockip eq 'answer') {
255: return ('NEED_DIFFERENT_IP','',$slot_name,$returned_slot,$ipused);
256: } else {
257: return ($status,$datemsg);
258: }
259: }
260:
261: if ($status eq 'CLOSED' ||
262: $status eq 'INVALID_ACCESS' ||
263: $status eq 'UNAVAILABLE') {
264: return ($status,$datemsg);
265: }
266: if ($env{'request.state'} eq "construct") {
267: return ($status,$datemsg);
268: }
269:
270: if ($type eq 'Task') {
271: if ($checkedin &&
272: $Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass') {
273: if ($blockip eq 'answer') {
274: return ('NEED_DIFFERENT_IP','',$slot_name,$returned_slot,$ipused);
275: } else {
276: return ('SHOW_ANSWER');
277: }
278: }
279: }
280:
281: my $availablestudent = &Apache::lonnet::EXT("resource.0.availablestudent",$symb);
282: my $available = &Apache::lonnet::EXT("resource.0.available",$symb);
283: my @slots= (split(':',$availablestudent),split(':',$available));
284:
285: # if (!@slots) {
286: # return ($status,$datemsg);
287: # }
288: undef($returned_slot);
289: undef($slot_name);
290: my $slotstatus='NOT_IN_A_SLOT';
291: my $num_usable_slots = 0;
292: if (!$symb) {
293: ($symb) = &Apache::lonnet::whichuser();
294: }
295: foreach my $slot (@slots) {
296: $slot =~ s/(^\s*|\s*$)//g;
297: &Apache::lonxml::debug("getting $slot");
298: my %slot=&Apache::lonnet::get_slot($slot);
299: &Apache::lonhomework::showhash(%slot);
300: next if ($slot{'endtime'} < $now);
301: $num_usable_slots ++;
302: if ($slot{'starttime'} < $now &&
303: $slot{'endtime'} > $now &&
304: &Apache::loncommon::check_ip_acc($slot{'ip'})) {
305: if ($slot{'iptied'}) {
306: if ($env{'request.course.id'}) {
307: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
308: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
309: if ($slot eq $checkinslot) {
310: if ($ip eq $ipused) {
311: &Apache::lonxml::debug("$slot is good");
312: $slotstatus ='NEEDS_CHECKIN';
313: } else {
314: $slotstatus = 'NEED_DIFFERENT_IP';
315: $slot_name = $slot;
316: $returned_slot = \%slot;
317: last;
318: }
319: } elsif ($ip) {
320: my $uniqkey = "$slot\0$symb\0$ip";
321: my %used_ip = &Apache::lonnet::get('slot_uniqueips',[$uniqkey],$cdom,$cnum);
322: if ($used_ip{$uniqkey}) {
323: $slotstatus = 'NEED_DIFFERENT_IP';
324: } else {
325: &Apache::lonxml::debug("$slot is good");
326: $slotstatus ='NEEDS_CHECKIN';
327: }
328: }
329: }
330: } else {
331: &Apache::lonxml::debug("$slot is good");
332: $slotstatus='NEEDS_CHECKIN';
333: }
334: if ($slotstatus eq 'NEEDS_CHECKIN') {
335: $returned_slot=\%slot;
336: $slot_name=$slot;
337: last;
338: }
339: }
340: }
341: if ($slotstatus eq 'NEEDS_CHECKIN' &&
342: &proctor_checked_in($slot_name,$returned_slot,$type)) {
343: &Apache::lonxml::debug("proctor checked in");
344: $slotstatus=$status;
345: }
346:
347: my ($is_correct,$got_grade);
348: if ($type eq 'Task') {
349: my $version=$Apache::lonhomework::history{'resource.0.version'};
350: $got_grade =
351: ($Apache::lonhomework::history{"resource.$version.0.status"}
352: =~ /^(?:pass|fail)$/);
353: $is_correct =
354: ($Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass'
355: || $Apache::lonhomework::history{"resource.0.solved"} =~ /^correct_/ );
356: } elsif (($type eq 'problem') || ($type eq 'tool')) {
357: if ((ref($partlist) eq 'ARRAY') && (@{$partlist} > 0)) {
358: my ($numcorrect,$numgraded) = (0,0);
359: foreach my $part (@{$partlist}) {
360: my $currtries = $Apache::lonhomework::history{"resource.$part.tries"};
361: my $maxtries = &Apache::lonnet::EXT("resource.$part.maxtries",$symb);
362: my $probstatus = &Apache::structuretags::get_problem_status($part);
363: my $earlyout;
364: unless (($probstatus eq 'no') ||
365: ($probstatus eq 'no_feedback_ever')) {
366: if ($Apache::lonhomework::history{"resource.$part.solved"} =~/^correct_/) {
367: $numcorrect ++;
368: } else {
369: $earlyout = 1;
370: }
371: }
372: if (($currtries == $maxtries) || ($is_correct)) {
373: $earlyout = 1;
374: } else {
375: $numgraded ++;
376: }
377: last if ($earlyout);
378: }
379: my $numparts = scalar(@{$partlist});
380: if ($numparts == $numcorrect) {
381: $is_correct = 1;
382: }
383: if ($numparts == $numgraded) {
384: $got_grade = 1;
385: }
386: } else {
387: my $currtries = $Apache::lonhomework::history{"resource.0.tries"};
388: my $maxtries = &Apache::lonnet::EXT("resource.0.maxtries",$symb);
389: my $probstatus = &Apache::structuretags::get_problem_status('0');
390: unless (($probstatus eq 'no') ||
391: ($probstatus eq 'no_feedback_ever')) {
392: $is_correct =
393: ($Apache::lonhomework::history{"resource.0.solved"} =~/^correct_/);
394: }
395: unless (($currtries == $maxtries) || ($is_correct)) {
396: $got_grade = 1;
397: }
398: }
399: }
400:
401: &Apache::lonxml::debug(" slot is $slotstatus checkedin ($checkedin) got_grade ($got_grade) is_correct ($is_correct)");
402:
403: # no slot is currently open, and has been checked in for this version
404: # but hasn't got a grade, therefore must be awaiting a grade
405: if (!defined($slot_name)
406: && $checkedin
407: && !$got_grade) {
408: return ('WAITING_FOR_GRADE');
409: }
410:
411: # Previously used slot is no longer open, and has been checked in for this version.
412: # However, the problem is not closed, and potentially, another slot might be
413: # used to gain access to it to work on it, until the due date is reached, and the
414: # problem then becomes CLOSED. Therefore return the slotstatus -
415: # (which will be one of: NOT_IN_A_SLOT, RESERVABLE, RESERVABLE_LATER, or NOTRESERVABLE).
416:
417: if (!defined($slot_name) && (($type eq 'problem') || ($type eq 'tool'))) {
418: if ($slotstatus eq 'NOT_IN_A_SLOT') {
419: if (!$num_usable_slots) {
420: ($slotstatus,$datemsg) = &check_reservable_slot($slotstatus,$symb,$now,$checkedin,
421: $consumed_uniq);
422: }
423: }
424: return ($slotstatus,$datemsg);
425: }
426:
427: if ($slotstatus eq 'NOT_IN_A_SLOT'
428: && $checkedin ) {
429:
430: if ($got_grade) {
431: if ($blockip eq 'answer') {
432: return ('NEED_DIFFERENT_IP','',$slot_name,$returned_slot,$ipused);
433: } else {
434: return ('SHOW_ANSWER');
435: }
436: } else {
437: return ('WAITING_FOR_GRADE');
438: }
439:
440: }
441:
442: if (($is_correct) && ($blockip ne 'answer')) {
443: if (($type eq 'problem') || ($type eq 'tool')) {
444: return ($status);
445: }
446: return ('SHOW_ANSWER');
447: }
448:
449: if ( $status eq 'CANNOT_ANSWER' &&
450: ($slotstatus ne 'NEEDS_CHECKIN' && $slotstatus ne 'NOT_IN_A_SLOT' &&
451: $slotstatus ne 'NEED_DIFFERENT_IP') ) {
452: return ($status,$datemsg);
453: }
454: return ($slotstatus,$datemsg,$slot_name,$returned_slot,$ipused);
455: }
456:
457: sub check_reservable_slot {
458: my ($slotstatus,$symb,$now,$checkedin,$consumed_uniq) = @_;
459: my $datemsg;
460: if ($slotstatus eq 'NOT_IN_A_SLOT') {
461: if ($env{'request.course.id'}) {
462: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
463: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
464: unless ($symb) {
465: ($symb)=&Apache::lonnet::whichuser();
466: }
467: $slotstatus = 'NOTRESERVABLE';
468: my ($reservable_now_order,$reservable_now,$reservable_future_order,
469: $reservable_future) =
470: &Apache::loncommon::get_future_slots($cnum,$cdom,$now,$symb);
471: if ((ref($reservable_now_order) eq 'ARRAY') && (ref($reservable_now) eq 'HASH')) {
472: if (@{$reservable_now_order} > 0) {
473: if ((!$checkedin) || (ref($consumed_uniq) ne 'ARRAY')) {
474: $slotstatus = 'RESERVABLE';
475: $datemsg = $reservable_now->{$reservable_now_order->[-1]}{'endreserve'};
476: } else {
477: my ($uniqstart,$uniqend,$useslot);
478: if (ref($consumed_uniq) eq 'ARRAY') {
479: ($uniqstart,$uniqend)=@{$consumed_uniq};
480: }
481: foreach my $slot (reverse(@{$reservable_now_order})) {
482: if ($reservable_now->{$slot}{'uniqueperiod'} =~ /^(\d+)\,(\d+)$/) {
483: my ($new_uniq_start,$new_uniq_end) = ($1,$2);
484: next if (!
485: ($uniqstart < $new_uniq_start && $uniqend < $new_uniq_start) ||
486: ($uniqstart > $new_uniq_end && $uniqend > $new_uniq_end ));
487: }
488: $useslot = $slot;
489: last;
490: }
491: if ($useslot) {
492: $slotstatus = 'RESERVABLE';
493: $datemsg = $reservable_now->{$useslot}{'endreserve'};
494: }
495: }
496: }
497: }
498: unless ($slotstatus eq 'RESERVABLE') {
499: if ((ref($reservable_future_order) eq 'ARRAY') && (ref($reservable_future) eq 'HASH')) {
500: if (@{$reservable_future_order} > 0) {
501: if ((!$checkedin) || (ref($consumed_uniq) ne 'ARRAY')) {
502: $slotstatus = 'RESERVABLE_LATER';
503: $datemsg = $reservable_future->{$reservable_future_order->[0]}{'startreserve'};
504: } else {
505: my ($uniqstart,$uniqend,$useslot);
506: if (ref($consumed_uniq) eq 'ARRAY') {
507: ($uniqstart,$uniqend)=@{$consumed_uniq};
508: }
509: foreach my $slot (@{$reservable_future_order}) {
510: if ($reservable_future->{$slot}{'uniqueperiod'} =~ /^(\d+),(\d+)$/) {
511: my ($new_uniq_start,$new_uniq_end) = ($1,$2);
512: next if (!
513: ($uniqstart < $new_uniq_start && $uniqend < $new_uniq_start) ||
514: ($uniqstart > $new_uniq_end && $uniqend > $new_uniq_end ));
515: }
516: $useslot = $slot;
517: last;
518: }
519: if ($useslot) {
520: $slotstatus = 'RESERVABLE_LATER';
521: $datemsg = $reservable_future->{$useslot}{'startreserve'};
522: }
523: }
524: }
525: }
526: }
527: }
528: }
529: return ($slotstatus,$datemsg);
530: }
531:
532: # JB, 9/24/2002: Any changes in this function may require a change
533: # in lonnavmaps::resource::getDateStatus.
534: sub check_access {
535: my ($id,$symb) = @_;
536: my $date ='';
537: my $status;
538: my $datemsg = '';
539: my $lastdate = '';
540: my $type;
541: my $passed;
542:
543: if ($env{'request.state'} eq "construct") {
544: if ($env{'form.problemstate'}) {
545: if ($env{'form.problemstate'} =~ /^CANNOT_ANSWER/) {
546: if ( ! ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct'
547: && &hide_problem_status())) {
548: return ('CANNOT_ANSWER',
549: &mt('is in this state due to author settings.'));
550: }
551: } else {
552: return ($env{'form.problemstate'},
553: &mt('is in this state due to author settings.'));
554: }
555: }
556: &Apache::lonxml::debug("in construction ignoring dates");
557: $status='CAN_ANSWER';
558: $datemsg=&mt('is in under construction');
559: # return ($status,$datemsg);
560: }
561:
562: &Apache::lonxml::debug("checking for part :$id:");
563: &Apache::lonxml::debug("time:".time);
564:
565: unless ($symb) {
566: ($symb)=&Apache::lonnet::whichuser();
567: }
568: &Apache::lonxml::debug("symb:".$symb);
569: #if ($env{'request.state'} ne "construct" && $symb ne '') {
570: if ($env{'request.state'} ne "construct") {
571: my $idacc = &Apache::lonnet::EXT("resource.$id.acc",$symb);
572: my $allowed=&Apache::loncommon::check_ip_acc($idacc);
573: if (!$allowed && ($Apache::lonhomework::browse ne 'F')) {
574: $status='INVALID_ACCESS';
575: $date=&mt("can not be accessed from your location.");
576: return($status,$date);
577: }
578: if ($env{'form.grade_imsexport'}) {
579: if (($env{'request.course.id'}) &&
580: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
581: return ('SHOW_ANSWER');
582: }
583: }
584: foreach my $temp ("opendate","duedate","answerdate") {
585: $lastdate = $date;
586: if ($temp eq 'duedate') {
587: $date = &due_date($id,$symb);
588: } else {
589: $date = &Apache::lonnet::EXT("resource.$id.$temp",$symb);
590: }
591:
592: my $thistype = &Apache::lonnet::EXT("resource.$id.$temp.type",$symb);
593: if ($thistype =~ /^(con_lost|no_such_host)/ ||
594: $date =~ /^(con_lost|no_such_host)/) {
595: $status='UNAVAILABLE';
596: $date=&mt("may open later.");
597: return($status,$date);
598: }
599: if ($thistype eq 'date_interval') {
600: if ($temp eq 'opendate') {
601: $date=&Apache::lonnet::EXT("resource.$id.duedate",$symb)-$date;
602: }
603: if ($temp eq 'answerdate') {
604: $date=&Apache::lonnet::EXT("resource.$id.duedate",$symb)+$date;
605: }
606: }
607: &Apache::lonxml::debug("found :$date: for :$temp:");
608: if ($date eq '') {
609: $date = &mt("an unknown date"); $passed = 0;
610: } elsif ($date eq 'con_lost') {
611: $date = &mt("an indeterminate date"); $passed = 0;
612: } else {
613: if (time < $date) { $passed = 0; } else { $passed = 1; }
614: $date = &Apache::lonlocal::locallocaltime($date);
615: }
616: if (!$passed) { $type=$temp; last; }
617: }
618: &Apache::lonxml::debug("have :$type:$passed:");
619: if ($passed) {
620: $status='SHOW_ANSWER';
621: $datemsg=$date;
622: } elsif ($type eq 'opendate') {
623: $status='CLOSED';
624: $datemsg = &mt('will open on [_1]',$date);
625: } elsif ($type eq 'duedate') {
626: $status='CAN_ANSWER';
627: $datemsg = &mt('is due at [_1]',$date);
628: } elsif ($type eq 'answerdate') {
629: $status='CLOSED';
630: $datemsg = &mt('was due on [_1], and answers will be available on [_2]',
631: $lastdate,$date);
632: }
633: }
634: if ($status eq 'CAN_ANSWER' ||
635: (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED'))) {
636: #check #tries, and if correct.
637: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
638: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries",$symb);
639: if ( $tries eq '' ) { $tries = '0'; }
640: if ( $maxtries eq '' &&
641: $env{'request.state'} ne 'construct') { $maxtries = '2'; }
642: if ($maxtries && $tries >= $maxtries) { $status = 'CANNOT_ANSWER'; }
643: # if (correct and show prob status) or excused then CANNOT_ANSWER
644: if ( ($Apache::lonhomework::history{"resource.$id.solved"}=~/^correct/)
645: && (&show_problem_status()) ) {
646: if (($Apache::lonhomework::history{"resource.$id.awarded"} >= 1) ||
647: (&Apache::lonnet::EXT("resource.$id.retrypartial",$symb) !~/^1|on|yes$/i)) {
648: $status = 'CANNOT_ANSWER';
649: }
650: } elsif ($Apache::lonhomework::history{"resource.$id.solved"}=~/^excused/) {
651: $status = 'CANNOT_ANSWER';
652: }
653: if ($status eq 'CANNOT_ANSWER'
654: && &show_answer_problem_status()) {
655: $status = 'SHOW_ANSWER';
656: }
657: }
658: if ($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER') {
659: my @interval=&Apache::lonnet::EXT("resource.$id.interval",$symb);
660: &Apache::lonxml::debug("looking for interval @interval");
661: if ($interval[0]=~ /^\d+/) {
662: my $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
663: &Apache::lonxml::debug("looking for accesstime $first_access");
664: if (!$first_access) {
665: $status='NOT_YET_VIEWED';
666: my $due_date = &due_date($id,$symb);
667: my $seconds_left = $due_date - time;
668: my ($timelimit) = ($interval[0] =~ /^(\d+)/);
669: if ($seconds_left > $timelimit || $due_date eq '') {
670: $seconds_left = $timelimit;
671: }
672: $datemsg=&seconds_to_human_length($seconds_left);
673: }
674: }
675: }
676:
677: #if (($status ne 'CLOSED') && ($Apache::lonhomework::type eq 'exam') &&
678: # (!$Apache::lonhomework::history{"resource.0.outtoken"})) {
679: # return ('UNCHECKEDOUT','needs to be checked out');
680: #}
681:
682: &Apache::lonxml::debug("sending back :$status:$datemsg:");
683: if (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED')) {
684: &Apache::lonxml::debug("should be allowed to browse a resource when closed");
685: $status='CAN_ANSWER';
686: $datemsg=&mt('is closed but you are allowed to view it');
687: }
688:
689: return ($status,$datemsg);
690: }
691: # this should work exactly like the copy in lonnavmaps.pm
692: sub due_date {
693: my ($part_id,$symb,$udom,$uname)=@_;
694: my $date;
695: my @interval= &Apache::lonnet::EXT("resource.$part_id.interval",$symb,
696: $udom,$uname);
697: &Apache::lonxml::debug("looking for interval $part_id $symb @interval");
698: my $due_date= &Apache::lonnet::EXT("resource.$part_id.duedate",$symb,
699: $udom,$uname);
700: &Apache::lonxml::debug("looking for due_date $part_id $symb $due_date");
701: if ($interval[0] =~ /\d+/) {
702: my $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
703: &Apache::lonxml::debug("looking for first_access $first_access ($interval[1])");
704: if (defined($first_access)) {
705: my ($timelimit) = ($interval[0] =~ /^(\d+)/);
706: my $interval = $first_access+$timelimit;
707: $date = (!$due_date || $interval < $due_date) ? $interval
708: : $due_date;
709: } else {
710: $date = $due_date;
711: }
712: } else {
713: $date = $due_date;
714: }
715: return $date;
716: }
717:
718: sub seconds_to_human_length {
719: my ($length)=@_;
720:
721: my $seconds=$length%60; $length=int($length/60);
722: my $minutes=$length%60; $length=int($length/60);
723: my $hours=$length%24; $length=int($length/24);
724: my $days=$length;
725:
726: my $timestr;
727: if ($days > 0) { $timestr.=&mt('[quant,_1,day]',$days); }
728: if ($hours > 0) { $timestr.=($timestr?", ":"").
729: &mt('[quant,_1,hour]',$hours); }
730: if ($minutes > 0) { $timestr.=($timestr?", ":"").
731: &mt('[quant,_1,minute]',$minutes); }
732: if ($seconds > 0) { $timestr.=($timestr?", ":"").
733: &mt('[quant,_1,second]',$seconds); }
734: return $timestr;
735: }
736:
737: sub showhash {
738: my (%hash) = @_;
739: &showhashsubset(\%hash,'.');
740: return '';
741: }
742:
743: sub showarray {
744: my ($array)=@_;
745: my $string="(";
746: foreach my $elm (@{ $array }) {
747: if (ref($elm) eq 'ARRAY') {
748: $string.=&showarray($elm);
749: } elsif (ref($elm) eq 'HASH') {
750: $string.= "HASH --- \n<br />";
751: $string.= &showhashsubset($elm,'.');
752: } else {
753: $string.="$elm,"
754: }
755: }
756: chop($string);
757: $string.=")";
758: return $string;
759: }
760:
761: sub showhashsubset {
762: my ($hash,$keyre) = @_;
763: my $resultkey;
764: foreach $resultkey (sort(keys(%$hash))) {
765: if ($resultkey !~ /$keyre/) { next; }
766: if (ref($$hash{$resultkey}) eq 'ARRAY' ) {
767: &Apache::lonxml::debug("$resultkey ---- ".
768: &showarray($$hash{$resultkey}));
769: } elsif (ref($$hash{$resultkey}) eq 'HASH' ) {
770: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
771: &showhashsubset($$hash{$resultkey},'.');
772: } else {
773: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
774: }
775: }
776: &Apache::lonxml::debug("\n<br />restored values^</br>\n");
777: return '';
778: }
779:
780: sub setuppermissions {
781: $Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$env{'request.filename'});
782: unless ($Apache::lonhomework::browse eq 'F') {
783: $Apache::lonhomework::browse=&Apache::lonnet::allowed('bro',$env{'request.filename'});
784: }
785: my $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'});
786: if (! $viewgrades &&
787: exists($env{'request.course.sec'}) &&
788: $env{'request.course.sec'} !~ /^\s*$/) {
789: $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'}.
790: '/'.$env{'request.course.sec'});
791: }
792: $Apache::lonhomework::viewgrades = $viewgrades;
793:
794: if ($Apache::lonhomework::browse eq 'F' &&
795: $env{'form.devalidatecourseresdata'} eq 'on') {
796: my (undef,$courseid) = &Apache::lonnet::whichuser();
797: &Apache::lonnet::devalidatecourseresdata($env{"course.$courseid.num"},
798: $env{"course.$courseid.domain"});
799: }
800:
801: my $modifygrades = &Apache::lonnet::allowed('mgr',$env{'request.course.id'});
802: if (! $modifygrades &&
803: exists($env{'request.course.sec'}) &&
804: $env{'request.course.sec'} !~ /^\s*$/) {
805: $modifygrades =
806: &Apache::lonnet::allowed('mgr',$env{'request.course.id'}.
807: '/'.$env{'request.course.sec'});
808: }
809: $Apache::lonhomework::modifygrades = $modifygrades;
810:
811: my $queuegrade = &Apache::lonnet::allowed('mqg',$env{'request.course.id'});
812: if (! $queuegrade &&
813: exists($env{'request.course.sec'}) &&
814: $env{'request.course.sec'} !~ /^\s*$/) {
815: $queuegrade =
816: &Apache::lonnet::allowed('qgr',$env{'request.course.id'}.
817: '/'.$env{'request.course.sec'});
818: }
819: $Apache::lonhomework::queuegrade = $queuegrade;
820: return '';
821: }
822:
823: sub unset_permissions {
824: undef($Apache::lonhomework::queuegrade);
825: undef($Apache::lonhomework::modifygrades);
826: undef($Apache::lonhomework::viewgrades);
827: undef($Apache::lonhomework::browse);
828: }
829:
830: sub setupheader {
831: my $request=$_[0];
832: &Apache::loncommon::content_type($request,'text/html');
833: if (!$Apache::lonxml::debug && ($ENV{'REQUEST_METHOD'} eq 'GET')) {
834: &Apache::loncommon::no_cache($request);
835: }
836: # $request->set_last_modified(&Apache::lonnet::metadata($request->uri,
837: # 'lastrevisiondate'));
838: $request->send_http_header;
839: return OK if $request->header_only;
840: return ''
841: }
842:
843: sub handle_save_or_undo {
844: my ($request,$problem,$result,$getobjref) = @_;
845:
846: my $file = &Apache::lonnet::filelocation("",$request->uri);
847: my $filebak =$file.".bak";
848: my $filetmp =$file.".tmp";
849: my $error=0;
850: if (($env{'form.problemmode'} eq 'undo') || ($env{'form.problemmode'} eq 'undoxml')) {
851: my $error=0;
852: if (!&File::Copy::copy($file,$filetmp)) { $error=1; }
853: if ((!$error) && (!&File::Copy::copy($filebak,$file))) { $error=1; }
854: if ((!$error) && (!&File::Copy::move($filetmp,$filebak))) { $error=1; }
855: if (!$error) {
856: &Apache::lonxml::info("<p><b>".
857: &mt("Undid changes, Switched [_1] and [_2]",
858: '<span class="LC_filename">'.$filebak.
859: '</span>',
860: '<span class="LC_filename">'.$file.
861: '</span>')."</b></p>");
862: } else {
863: &Apache::lonxml::info("<p><span class=\"LC_error\">".
864: &mt("Unable to undo, unable to switch [_1] and [_2]",
865: '<span class="LC_filename">'.
866: $filebak.'</span>',
867: '<span class="LC_filename">'.
868: $file.'</span>')."</span></p>");
869: $error=1;
870: }
871: } else {
872: &Apache::lonnet::correct_line_ends($result);
873:
874: my $fs=Apache::File->new(">$filebak");
875: if (defined($fs)) {
876: print $fs $$problem;
877: } else {
878: &Apache::lonxml::info("<span class=\"LC_error\">".
879: &mt("Unable to make backup [_1]",
880: '<span class="LC_filename">'.
881: $filebak.'</span>')."</span>");
882: $error=2;
883: }
884: my $fh=Apache::File->new(">$file");
885: if (defined($fh)) {
886: print $fh $$result;
887: if (ref($getobjref) eq 'SCALAR') {
888: if ($file =~ m{([^/]+)\.(html?)$}) {
889: my $fname = $1;
890: my $ext = $2;
891: my $path = $file;
892: $path =~ s/\Q$fname\E\.\Q$ext\E$//;
893: my (%allfiles,%codebase);
894: &Apache::lonnet::extract_embedded_items($file,\%allfiles,
895: \%codebase,$result);
896: if (keys(%allfiles) > 0) {
897: my $url = $request->uri;
898: my $state = <<STATE;
899: <input type="hidden" name="action" value="upload_embedded" />
900: <input type="hidden" name="url" value="$url" />
901: STATE
902: $$getobjref = "<h3>".&mt("Reference Warning")."</h3>".
903: "<p>".&mt("Completed upload of the file. This file contained references to other files.")."</p>".
904: "<p>".&mt("Please select the locations from which the referenced files are to be uploaded.")."</p>".
905: &Apache::loncommon::ask_for_embedded_content($url,$state,\%allfiles,\%codebase,
906: {'error_on_invalid_names' => 1,
907: 'ignore_remote_references' => 1,});
908: }
909: }
910: }
911: } else {
912: &Apache::lonxml::info('<span class="LC_error">'.
913: &mt("Unable to write to [_1]",
914: '<span class="LC_filename">'.
915: $file.'</span>').
916: '</span>');
917: $error|=4;
918: }
919: }
920: return $error;
921: }
922:
923: sub analyze_header {
924: my ($request) = @_;
925: my $js = &Apache::structuretags::setmode_javascript();
926:
927: # Breadcrumbs
928: my $brcrum = [{'href' => &Apache::loncommon::authorspace($request->uri),
929: 'text' => 'Authoring Space'},
930: {'href' => '',
931: 'text' => 'Problem Testing'},
932: {'href' => '',
933: 'text' => 'Analyzing a problem'}];
934:
935: my $result =
936: &Apache::loncommon::start_page('Analyzing a problem',
937: $js,
938: {'bread_crumbs' => $brcrum,})
939: .&Apache::loncommon::head_subbox(
940: &Apache::loncommon::CSTR_pageheader());
941: $result .=
942: '<form name="lonhomework" method="post" action="'.
943: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
944: '<input type="hidden" name="problemmode" value="'.
945: $env{'form.problemmode'}.'" />'.
946: &Apache::structuretags::remember_problem_state().'
947: <div class="LC_edit_problem_analyze_header">
948: <input type="button" name="submitmode" value="'.&mt("EditXML").'" '.
949: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />
950: <input type="button" name="submitmode" value="'.&mt('Edit').'" '.
951: 'onclick="javascript:setmode(this.form,'."'edit'".')" />
952: <hr />
953: <input type="button" name="submitmode" value="'.&mt("View").'" '.
954: 'onclick="javascript:setmode(this.form,'."'view'".')" />
955: <hr />
956: </div>'
957: .&Apache::lonxml::message_location().
958: '</form>';
959: &Apache::lonxml::add_messages(\$result);
960: $request->print($result);
961: $request->rflush();
962: }
963:
964: sub analyze_footer {
965: my ($request) = @_;
966: $request->print(&Apache::loncommon::end_page());
967: $request->rflush();
968: }
969:
970: sub analyze {
971: my ($request,$file) = @_;
972: &Apache::lonxml::debug("Analyze");
973: my $result;
974: my %overall;
975: my %seedexample;
976: my %allparts;
977: my $rndseed=$env{'form.rndseed'};
978: &analyze_header($request);
979: my %prog_state=
980: &Apache::lonhtmlcommon::Create_PrgWin($request,$env{'form.numtoanalyze'});
981: for(my $i=1;$i<$env{'form.numtoanalyze'}+1;$i++) {
982: &Apache::lonhtmlcommon::Increment_PrgWin($request,\%prog_state,'last problem');
983: if (&Apache::loncommon::connection_aborted($request)) { return; }
984: my $thisseed=$i+$rndseed;
985: my $subresult=&Apache::lonnet::ssi($request->uri,
986: ('grade_target' => 'analyze'),
987: ('rndseed' => $thisseed));
988: (my $garbage,$subresult)=split(/_HASH_REF__/,$subresult,2);
989: my %analyze=&Apache::lonnet::str2hash($subresult);
990: my @parts;
991: if (ref($analyze{'parts'}) eq 'ARRAY') {
992: @parts=@{ $analyze{'parts'} };
993: }
994: foreach my $part (@parts) {
995: if (!exists($allparts{$part})) {$allparts{$part}=1;};
996: if ($analyze{$part.'.type'} eq 'numericalresponse' ||
997: $analyze{$part.'.type'} eq 'stringresponse' ||
998: $analyze{$part.'.type'} eq 'formularesponse' ) {
999: foreach my $name (keys(%{ $analyze{$part.'.answer'} })) {
1000: my $i=0;
1001: foreach my $answer_part (@{ $analyze{$part.'.answer'}{$name} }) {
1002: push( @{ $overall{$part.'.answer'}[$i] },
1003: $answer_part);
1004: my $concatanswer= join("\0",@{ $answer_part });
1005: if (($concatanswer eq '') || ($concatanswer=~/^\@/)) {
1006: $answer_part = ['<span class="LC_error">'.&mt('Error').'</span>'];
1007: }
1008: $seedexample{join("\0",$part,$i,@{$answer_part})}=
1009: $thisseed;
1010: $i++;
1011: }
1012: }
1013: if (!keys(%{ $analyze{$part.'.answer'} })) {
1014: my $answer_part =
1015: ['<span class="LC_error">'.&mt('Error').'</span>'];
1016: $seedexample{join("\0",$part,0,@{$answer_part})}=
1017: $thisseed;
1018: push( @{ $overall{$part.'.answer'}[0] },
1019: $answer_part);
1020: }
1021: }
1022: }
1023: }
1024: &Apache::lonhtmlcommon::Update_PrgWin($request,\%prog_state,&mt('Analyzing Results'));
1025: $request->print('<hr />'
1026: .'<h3>'
1027: .&mt('List of possible answers')
1028: .'</h3>'
1029: );
1030: foreach my $part (sort(keys(%allparts))) {
1031: if ((ref($overall{$part.'.answer'}) eq 'ARRAY') &&
1032: (@{$overall{$part.'.answer'}} > 0)) {
1033: for (my $i=0;$i<scalar(@{ $overall{$part.'.answer'} });$i++) {
1034: my $num_cols=scalar(@{ $overall{$part.'.answer'}[$i][0] });
1035: $request->print(&Apache::loncommon::start_data_table()
1036: .&Apache::loncommon::start_data_table_header_row()
1037: .'<th colspan="'.($num_cols+1).'">'
1038: .&mt('Part').' '.$part
1039: );
1040: if (scalar(@{ $overall{$part.'.answer'} }) > 1) {
1041: $request->print(' '.&mt('Answer [_1]',$i+1));
1042: }
1043: $request->print('</th>'
1044: .&Apache::loncommon::end_data_table_header_row()
1045: );
1046: my %frequency;
1047: foreach my $answer (sort {$a->[0] <=> $b->[0]} (@{ $overall{$part.'.answer'}[$i] })) {
1048: $frequency{join("\0",@{ $answer })}++;
1049: }
1050: $request->print(&Apache::loncommon::start_data_table_header_row()
1051: .'<th colspan="'.($num_cols).'">'.&mt('Answer').'</th>'
1052: .'<th>'.&mt('Frequency').'<br />'
1053: .'('.&mt('click for example').')</th>'
1054: .&Apache::loncommon::end_data_table_header_row()
1055: );
1056: foreach my $answer (sort {(split("\0",$a))[0] <=> (split("\0",$b))[0]} (keys(%frequency))) {
1057: $request->print(&Apache::loncommon::start_data_table_row()
1058: .'<td>'
1059: .join('</td><td>',split("\0",$answer))
1060: .'</td>'
1061: .'<td>'
1062: .'<a href="'.$request->uri.'?rndseed='.$seedexample{join("\0",$part,$i,$answer)}.'">'.$frequency{$answer}.'</a>'
1063: .'</td>'
1064: .&Apache::loncommon::end_data_table_row()
1065: );
1066: }
1067: $request->print(&Apache::loncommon::end_data_table());
1068: }
1069: } else {
1070: $request->print('<p class="LC_warning">'
1071: .&mt('Response [_1] is not analyzable at this time.',$part)
1072: .'</p>'
1073: );
1074: }
1075: }
1076: if (scalar(keys(%allparts)) == 0 ) {
1077: $request->print('<p class="LC_warning">'
1078: .&mt('Found no analyzable responses in this problem.'
1079: .' Currently only Numerical, Formula and String response styles are supported.')
1080: .'</p>'
1081: );
1082: }
1083: &Apache::lonhtmlcommon::Close_PrgWin($request,\%prog_state);
1084: &analyze_footer($request);
1085: &Apache::lonhomework::showhash(%overall);
1086: return $result;
1087: }
1088:
1089: {
1090: my $show_problem_status;
1091: sub reset_show_problem_status {
1092: undef($show_problem_status);
1093: }
1094:
1095: sub set_show_problem_status {
1096: my ($new_status) = @_;
1097: $show_problem_status = lc($new_status);
1098: }
1099:
1100: sub hide_problem_status {
1101: return ($show_problem_status eq 'no'
1102: || $show_problem_status eq 'no_feedback_ever');
1103: }
1104:
1105: sub show_problem_status {
1106: return ($show_problem_status eq 'yes'
1107: || $show_problem_status eq 'answer'
1108: || $show_problem_status eq '');
1109: }
1110:
1111: sub show_some_problem_status {
1112: return ($show_problem_status eq 'no');
1113: }
1114:
1115: sub show_no_problem_status {
1116: return ($show_problem_status eq 'no_feedback_ever');
1117: }
1118:
1119: sub show_answer_problem_status {
1120: return ($show_problem_status eq 'answer');
1121: }
1122: }
1123:
1124: sub editxmlmode {
1125: my ($request,$file) = @_;
1126: my $result;
1127: my $problem=&Apache::lonnet::getfile($file);
1128: if ($problem eq -1) {
1129: &Apache::lonxml::error(
1130: '<p class="LC_error">'
1131: .&mt('Unable to find [_1]',
1132: '<span class="LC_filename">'.$file.'</span>')
1133: .'</p>');
1134:
1135: $problem='';
1136: }
1137: if (($env{'form.problemmode'} eq 'saveeditxml') ||
1138: ($env{'form.problemmode'} eq 'saveviewxml') ||
1139: ($env{'form.problemmode'} eq 'undoxml')) {
1140: my $error=&handle_save_or_undo($request,\$problem,
1141: \$env{'form.editxmltext'});
1142: if (!$error) { $problem=&Apache::lonnet::getfile($file); }
1143: }
1144: &Apache::lonhomework::showhashsubset(\%env,'^form');
1145: if ($env{'form.problemmode'} eq 'saveviewxml') {
1146: &Apache::lonhomework::showhashsubset(\%env,'^form');
1147: $env{'form.problemmode'}='view';
1148: &renderpage($request,$file);
1149: } else {
1150: my ($rows,$cols) = &Apache::edit::textarea_sizes(\$problem);
1151: if ($cols > 80) { $cols = 80; }
1152: if ($cols < 70) { $cols = 70; }
1153: if ($rows < 20) { $rows = 20; }
1154: my $js =
1155: &Apache::edit::js_change_detection().
1156: &Apache::loncommon::resize_textarea_js().
1157: &Apache::structuretags::setmode_javascript().
1158: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
1159:
1160: # Breadcrumbs
1161: my $brcrum = [{'href' => &Apache::loncommon::authorspace($request->uri),
1162: 'text' => 'Authoring Space'},
1163: {'href' => '',
1164: 'text' => 'Problem Editing'}];
1165:
1166: my $start_page =
1167: &Apache::loncommon::start_page(&mt("EditXML [_1]",$file),$js,
1168: {'no_auto_mt_title' => 1,
1169: 'only_body' => 0,
1170: 'add_entries' => {
1171: 'onresize' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
1172: 'onload' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
1173: },
1174: 'bread_crumbs' => $brcrum,
1175: });
1176:
1177: $result=$start_page
1178: .&Apache::loncommon::head_subbox(
1179: &Apache::loncommon::CSTR_pageheader());
1180: $result.=&renderpage($request,$file,['no_output_web'],1).
1181: '<form '.&Apache::edit::form_change_detection().' name="lonhomework" method="post" action="'.
1182: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
1183: &Apache::structuretags::remember_problem_state().'
1184: <div class="LC_edit_problem_header">
1185: <div class="LC_edit_problem_header_title">'.
1186: &mt('Problem Editing').' '.&Apache::loncommon::help_open_topic('Problem_Editor_XML_Index').
1187: '</div><div class="LC_edit_actionbar" id="actionbar">';
1188:
1189: $result.='<input type="hidden" name="problemmode" value="saveedit" />'.
1190: &Apache::structuretags::problem_edit_buttons('editxml');
1191: $result.='<div>';
1192:
1193: $result .= '<ol class="LC_primary_menu" style="display:inline-block;font-size:90%;vertical-align:middle;">';
1194:
1195: unless ($env{'environment.nocodemirror'}) {
1196: # dropdown menus
1197: $result .= Apache::lonmenu::create_submenu("#", "",
1198: &mt("Problem Templates"), template_dropdown_datastructure());
1199:
1200: $result .= Apache::lonmenu::create_submenu("#", "",
1201: &mt("Response Types"), responseblock_dropdown_datastructure());
1202:
1203: $result .= Apache::lonmenu::create_submenu("#", "",
1204: &mt("Conditional Blocks"), conditional_scripting_datastructure());
1205:
1206: $result .= Apache::lonmenu::create_submenu("#", "",
1207: &mt("Miscellaneous"), misc_datastructure());
1208: }
1209:
1210: $result .= Apache::lonmenu::create_submenu("#", "",
1211: &mt("Help") . ' <img src="/adm/help/help.png" alt="' . &mt("Help") .
1212: '" style="vertical-align:text-bottom; height: auto; margin:0; "/>',
1213: helpmenu_datastructure(),"");
1214:
1215: $result.="</ol></div>";
1216:
1217: $result .= '</div></div>' .
1218: &Apache::lonxml::message_location() .
1219: &Apache::loncommon::xmleditor_js() .
1220: '<textarea ' . &Apache::edit::element_change_detection() .
1221: ' rows="'.$rows.'" cols="'.$cols.'" style="width:100%" ' .
1222: ' name="editxmltext" id="LC_editxmltext">' .
1223: &HTML::Entities::encode($problem,'<>&"') .
1224: '</textarea> <div id="LC_aftertextarea"> </div> </form>';
1225:
1226: my $resource = $env{'request.ambiguous'};
1227: unless($env{'environment.nocodemirror'}){
1228: $result .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined-xml.css">
1229: <script src="/adm/codemirror/codemirror-compressed-xml.js"></script>
1230: <script>
1231: CodeMirror.defineMode("mixedmode", function(config) {
1232: return CodeMirror.multiplexingMode(
1233: CodeMirror.getMode(config, "xml"),
1234: {
1235: open: "\<script type=\"loncapa/perl\"\>", close: "\</script\>",
1236: mode: CodeMirror.getMode(config, "perl"),
1237: delimStyle: "tag",
1238: }
1239: );
1240: });
1241: var cm = CodeMirror.fromTextArea(document.getElementById("LC_editxmltext"),
1242: {
1243: mode: "mixedmode",
1244: lineWrapping: true,
1245: lineNumbers: true,
1246: tabSize: 4,
1247: indentUnit: 4,
1248:
1249: autoCloseTags: true,
1250: autoCloseBrackets: true,
1251: height: "auto",
1252: styleActiveLine: true,
1253:
1254: extraKeys: {
1255: "Tab": "indentMore",
1256: "Shift-Tab": "indentLess",
1257: }
1258: });
1259: restoreScrollPosition("'.$resource.'");
1260: </script>';
1261: }
1262:
1263: $result .= &Apache::loncommon::end_page();
1264: &Apache::lonxml::add_messages(\$result);
1265: $request->print($result);
1266: }
1267: return '';
1268: }
1269:
1270: #
1271: # Render the page in whatever target desired.
1272: #
1273: sub renderpage {
1274: my ($request,$file,$targets,$return_string,$donebuttonmsg) = @_;
1275:
1276: my @targets = @{$targets || [&get_target()]};
1277: &Apache::lonhomework::showhashsubset(\%env,'form.');
1278: &Apache::lonxml::debug("Running targets ".join(':',@targets));
1279:
1280: my $overall_result;
1281: foreach my $target (@targets) {
1282: # FIXME need to do something intelligent when a problem goes
1283: # from viewable to not viewable due to map conditions
1284: #&setuppermissions();
1285: #if ( $Apache::lonhomework::browse ne '2'
1286: # && $Apache::lonhomework::browse ne 'F' ) {
1287: # $request->print(" You most likely shouldn't see me.");
1288: #}
1289: #my $t0 = [&gettimeofday()];
1290: my $output=1;
1291: if ($target eq 'no_output_web') {
1292: $target = 'web'; $output=0;
1293: }
1294: my $problem=&Apache::lonnet::getfile($file);
1295: my $result;
1296: if ($problem eq -1) {
1297: $problem='';
1298: my $filename=(split('/',$file))[-1];
1299: my $error =
1300: '<p class="LC_error">'
1301: .&mt('Unable to find [_1]',
1302: '<span class="LC_filename">'.$filename.'</span>')
1303: ."</p>";
1304: $result.=
1305: &Apache::loncommon::simple_error_page($request,'Not available',
1306: $error,{'no_auto_mt_msg' => 1});
1307: return;
1308: }
1309:
1310: my %mystyle;
1311: if ($target eq 'analyze') { %Apache::lonhomework::analyze=(); }
1312: if ($target eq 'answer') { &showhash(%Apache::lonhomework::history); }
1313: if ($target eq 'web') {&Apache::lonhomework::showhashsubset(\%env,'^form');}
1314:
1315: &Apache::lonxml::debug("Should be parsing now");
1316: $result .= &Apache::lonxml::xmlparse($request, $target, $problem,
1317: &setup_vars($target),%mystyle);
1318: &finished_parsing();
1319: if (!$output) { $result = ''; }
1320: #$request->print("Result follows:");
1321: if ($target eq 'modified') {
1322: &handle_save_or_undo($request,\$problem,\$result);
1323: } else {
1324: if ($target eq 'analyze') {
1325: $result=&Apache::lonnet::hashref2str(\%Apache::lonhomework::analyze);
1326: undef(%Apache::lonhomework::analyze);
1327: } elsif ($target eq 'web') {
1328: if ($donebuttonmsg) {
1329: $result =~ s{</body>}{};
1330: $result.= &Apache::loncommon::confirmwrapper(&Apache::lonhtmlcommon::confirm_success($donebuttonmsg,1))."\n</body>";
1331: }
1332: }
1333: #my $td=&tv_interval($t0);
1334: #if ( $Apache::lonxml::debug) {
1335: #$result =~ s:</body>::;
1336: #$result.="<br />Spent $td seconds processing target $target\n</body>";
1337: #}
1338: # $request->print($result);
1339: $overall_result.=$result;
1340: # $request->rflush();
1341: }
1342: #$request->print(":Result ends");
1343: #my $td=&tv_interval($t0);
1344: }
1345: if (!$return_string) {
1346: &Apache::lonxml::add_messages(\$overall_result);
1347: $request->print($overall_result);
1348: $request->rflush();
1349: } else {
1350: return $overall_result;
1351: }
1352: }
1353:
1354: sub finished_parsing {
1355: undef($Apache::lonhomework::parsing_a_problem);
1356: undef($Apache::lonhomework::parsing_a_task);
1357: }
1358:
1359: # function extracted from get_template_html
1360: # returns "key" -> list
1361: # key: path of template
1362: # value 1: title
1363: # value 2: category
1364: # value 3: name of help topic ???
1365: sub get_template_list{
1366: my ($extension) = @_;
1367:
1368: my @files = glob($Apache::lonnet::perlvar{'lonIncludes'}.
1369: '/templates/*.'.$extension);
1370: @files = map {[$_,&mt(&Apache::lonnet::metadata($_, 'title')),
1371: (&Apache::lonnet::metadata($_, 'category')?&mt(&Apache::lonnet::metadata($_, 'category')):&mt('Miscellaneous')),
1372: &mt(&Apache::lonnet::metadata($_, 'help'))]} (@files);
1373: @files = sort {$a->[2].$a->[1] cmp $b->[2].$b->[1]} (@files);
1374: return @files;
1375: }
1376:
1377: sub get_template_html {
1378: my ($extension) = @_;
1379: my $result;
1380: my @allnames;
1381: &Apache::lonxml::debug("Looking for :$extension:");
1382: my $glob_extension = $extension;
1383: if ($extension eq 'survey' || $extension eq 'exam') {
1384: $glob_extension = 'problem';
1385: }
1386: my @files = &get_template_list($extension);
1387: my ($midpoint,$seconddiv,$numfiles);
1388: my @noexamplelink = ('blank.problem','blank.library','script.library');
1389: $numfiles = 0;
1390: foreach my $file (@files) {
1391: next if ($file->[1] !~ /\S/);
1392: $numfiles ++;
1393: }
1394: if ($numfiles > 0) {
1395: $result = '<div class="LC_left_float">';
1396: $midpoint = int($numfiles/2);
1397: if ($numfiles%2) {
1398: $midpoint ++;
1399: }
1400: }
1401: my $count = 0;
1402: my $currentcategory='';
1403: my $first = 1;
1404: my $londocroot = $Apache::lonnet::perlvar{'lonDocRoot'};
1405: foreach my $file (@files) {
1406: next if ($file->[1] !~ /\S/);
1407: if ($file->[2] ne $currentcategory) {
1408: $currentcategory=$file->[2];
1409: if ((!$seconddiv) && ($count >= $midpoint)) {
1410: $result .= '</div></div>'."\n".'<div class="LC_left_float">'."\n";
1411: $seconddiv = 1;
1412: } elsif (!$first) {
1413: $result.='</div>'."\n";
1414: } else {
1415: $first = 0;
1416: }
1417: $result.= '<div class="LC_Box">'."\n"
1418: .'<h3 class="LC_hcell">'.$currentcategory.'</h3>'."\n";
1419: $count++;
1420: }
1421: $result .=
1422: '<label><input type="radio" name="template" value="'.$file->[0].'" />'.
1423: $file->[1].'</label>';
1424: if ($file->[3]) {
1425: $result.=&Apache::loncommon::help_open_topic($file->[3]);
1426: }
1427: # Provide example link
1428: my $filename=$file->[0];
1429: $filename=~s{^\Q$londocroot\E}{};
1430: if (!(grep($filename =~ /\Q$_\E$/,@noexamplelink))) {
1431: $result .= ' <span class="LC_fontsize_small">'
1432: .&Apache::loncommon::modal_link(
1433: $filename.'?inhibitmenu=yes',&mt('Example'),600,420,'sample')
1434: .'</span>';
1435: }
1436: $result .= '<br />'."\n";
1437: $count ++;
1438: }
1439: if ($numfiles > 0) {
1440: $result .= '</div></div>'."\n".'<div class="LC_clear_float_footer"></div>'."\n";
1441: }
1442: return $result;
1443: }
1444:
1445: sub newproblem {
1446: my ($request) = @_;
1447:
1448: if ($env{'form.mode'} eq 'blank'){
1449: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1450: my $templatefilename =
1451: $request->dir_config('lonIncludes').'/templates/blank.problem';
1452: &File::Copy::copy($templatefilename,$dest);
1453: &renderpage($request,$dest);
1454: return;
1455: }
1456: my $errormsg;
1457: if ($env{'form.template'}) {
1458: my $file;
1459: my ($extension) = ($env{'form.template'} =~ /\.(\w+)$/);
1460: if ($extension) {
1461: my @files = &get_template_list($extension);
1462: foreach my $poss (@files) {
1463: if (ref($poss) eq 'ARRAY') {
1464: if ($env{'form.template'} eq $poss->[0]) {
1465: $file = $env{'form.template'};
1466: last;
1467: }
1468: }
1469: }
1470: if ($file) {
1471: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1472: &File::Copy::copy($file,$dest);
1473: &renderpage($request,$dest);
1474: return;
1475: } else {
1476: $errormsg = '<p class="LC_error">'.&mt('Invalid template file.').'</p>';
1477: }
1478: } else {
1479: $errormsg = '<p class="LC_error">'.&mt('Invalid template file; template needs to be a .problem, .library, or .task file.').'</p>';
1480: }
1481: }
1482:
1483: my ($extension) = ($request->uri =~ m/\.(\w+)$/);
1484: &Apache::lonxml::debug("Looking for :$extension:");
1485: my $templatelist=&get_template_html($extension);
1486: if ($env{'form.newfile'} && !$templatelist) {
1487: # no templates found
1488: my $templatefilename =
1489: $request->dir_config('lonIncludes').'/templates/blank.'.$extension;
1490: &Apache::lonxml::debug("$templatefilename");
1491: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1492: &File::Copy::copy($templatefilename,$dest);
1493: &renderpage($request,$dest);
1494: } else {
1495: my $url=&HTML::Entities::encode($request->uri,'<>&"');
1496: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1497: my $instructions;
1498: my $brcrum = [{'href' => &Apache::loncommon::authorspace($request->uri),
1499: 'text' => 'Authoring Space'},
1500: {'href' => '',
1501: 'text' => "Create New $extension"}];
1502: my $start_page =
1503: &Apache::loncommon::start_page("Create New $extension",
1504: undef,
1505: {'bread_crumbs' => $brcrum,});
1506: $request->print(
1507: $start_page
1508: .&Apache::loncommon::head_subbox(
1509: &Apache::loncommon::CSTR_pageheader())
1510: .'<h1>'.&mt("Creating a new $extension resource.")."</h1>
1511: $errormsg
1512: ".&mt("The requested file [_1] currently does not exist.",
1513: '<span class="LC_filename">'.$url.'</span>').'
1514: <p class="LC_info">
1515: '.&mt("To create a new $extension, select a template from the".
1516: " list below. Then click on the \"Create $extension\" button.").'
1517: </p><div><form action="'.$url.'" method="post">');
1518:
1519: if (defined($templatelist)) {
1520: $request->print($templatelist);
1521: }
1522: $request->print('<br /><input type="submit" name="newfile" value="'.
1523: &mt("Create $extension").'" />');
1524: $request->print('</form></div>'.&Apache::loncommon::end_page());
1525: }
1526: return;
1527: }
1528:
1529: sub update_construct_style {
1530: if ($env{'request.state'} eq "construct"
1531: && $env{'form.problemmode'} eq 'view'
1532: && defined($env{'form.submitted'})
1533: && !defined($env{'form.resetdata'})
1534: && !defined($env{'form.newrandomization'})) {
1535: if ((!$env{'form.style_file'} && $env{'construct.style'})
1536: ||$env{'form.clear_style_file'}) {
1537: &Apache::lonnet::delenv('construct.style');
1538: } elsif ($env{'form.style_file'}
1539: && $env{'construct.style'} ne $env{'form.style_file'}) {
1540: &Apache::lonnet::appenv({'construct.style' =>
1541: $env{'form.style_file'}});
1542: }
1543: }
1544: }
1545:
1546: #
1547: # Sets interval for current user so time left will be zero, either for the entire folder
1548: # containing the current resource, or just the resource, depending on value of first item
1549: # in interval array retrieved from EXT("resource.0.interval");
1550: #
1551: sub zero_timer {
1552: my ($symb) = @_;
1553: my ($hastimeleft,$first_access,$now);
1554: my @interval=&Apache::lonnet::EXT("resource.0.interval",$symb);
1555: if (@interval > 1) {
1556: if ($interval[1] eq 'course') {
1557: return ('fail',&mt('Ending of timed events not supported for intervals set course-wide'));
1558: } else {
1559: my $now = time;
1560: my $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
1561: if ($first_access > 0) {
1562: my ($timelimit,$donesuffix) = split(/_/,$interval[0],2);
1563: if ($donesuffix =~ /^done(?:|\:[^\:]+\:)(.*)$/) {
1564: my ($dummy,$proctor,$secret) = split(/_/,$1);
1565: if (($proctor) && ($secret ne '')) {
1566: my $key = $env{'form.LC_interval_done_proctorpass'};
1567: $key =~ s/^\s+//;
1568: $key =~ s/\s+$//;
1569: if ($env{'form.LC_interval_done_proctorpass'} ne $secret) {
1570: return ('fail',
1571: &mt('Incorrect key entered by proctor'));
1572: }
1573: }
1574: if ($first_access+$timelimit > $now) {
1575: my $done_time = $now - $first_access;
1576: my $snum = 1;
1577: if ($interval[1] eq 'map') {
1578: $snum = 2;
1579: }
1580: my $result =
1581: &Apache::lonparmset::storeparm_by_symb_inner($symb,'0_interval',
1582: $snum,$done_time,
1583: 'date_interval',
1584: $env{'user.name'},
1585: $env{'user.domain'});
1586: if ($result eq '') {
1587: # Record action in "User Notes"
1588: &Apache::lonmsg::store_instructor_comment(
1589: 'Pressed Done button for symb:<br />'.$symb,
1590: $env{'user.name'}, $env{'user.domain'});
1591: return ('ok');
1592: } else {
1593: return ('fail',&mt('Error ending timed event: [_1]',$result));
1594: }
1595: } else {
1596: return ('fail',&mt('Timed event already ended'));
1597: }
1598: } else {
1599: return ('fail',&mt('Timed event can not be ended before the time limit'));
1600: }
1601: } else {
1602: return ('fail',&mt('Timer not yet started for this timed event'));
1603: }
1604: }
1605: } else {
1606: return ('fail',&mt('No timer in use'));
1607: }
1608: return();
1609: }
1610:
1611: sub handler {
1612: #my $t0 = [&gettimeofday()];
1613: my $request=$_[0];
1614:
1615: $Apache::lonxml::request=$request;
1616: $Apache::lonxml::debug=$env{'user.debug'};
1617: $env{'request.uri'}=$request->uri;
1618: &setuppermissions();
1619:
1620: my $file=&Apache::lonnet::filelocation("",$request->uri);
1621:
1622: #check if we know where we are
1623: if ($env{'request.course.fn'} && !&Apache::lonnet::symbread('','',1,1)) {
1624: # if we are browsing we might not be able to know where we are
1625: if ($Apache::lonhomework::browse ne 'F' &&
1626: $env{'request.state'} ne "construct") {
1627: #should know where we are, so ask
1628: &unset_permissions();
1629: $request->internal_redirect('/adm/ambiguous');
1630: return OK;
1631: }
1632: }
1633: if (&setupheader($request)) {
1634: &unset_permissions();
1635: return OK;
1636: }
1637:
1638: &Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:$Apache::lonhomework::modifygrades:$Apache::lonhomework::queuegrade");
1639: &Apache::lonxml::debug("Problem Mode ".$env{'form.problemmode'});
1640: my ($symb) = &Apache::lonnet::whichuser();
1641: &Apache::lonxml::debug('symb is '.$symb);
1642: if ($env{'request.state'} eq "construct") {
1643: if ( -e $file ) {
1644: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1645: ['problemmode']);
1646: if (!(defined $env{'form.problemmode'})) {
1647: #first visit to problem in construction space
1648: $env{'form.problemmode'}= 'view';
1649: &renderpage($request,$file);
1650: } elsif (($env{'form.problemmode'} eq 'editxml') ||
1651: ($env{'form.problemmode'} eq 'saveeditxml') ||
1652: ($env{'form.problemmode'} eq 'saveviewxml') ||
1653: ($env{'form.problemmode'} eq 'undoxml')) {
1654: &editxmlmode($request,$file);
1655: } elsif ($env{'form.problemmode'} eq 'calcanswers') {
1656: &analyze($request,$file);
1657: } else {
1658: &update_construct_style();
1659: &renderpage($request,$file);
1660: }
1661: } else {
1662: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1663: ['mode']);
1664: # requested file doesn't exist in contruction space
1665: &newproblem($request);
1666: }
1667: } else {
1668: # Set the event timer to zero if the "done button" was clicked. The button is
1669: # part of the doneButton form created in lonmenu.pm
1670: my ($donebuttonresult,$donemsg);
1671: if ($symb && $env{'form.LC_interval_done'} eq 'true') {
1672: ($donebuttonresult,$donemsg) = &zero_timer($symb);
1673: undef($env{'form.LC_interval_done'});
1674: undef($env{'form.LC_interval_done_proctorpass'});
1675: }
1676: # just render the page normally outside of construction space
1677: &Apache::lonxml::debug("not construct");
1678: undef(@Apache::lonhomework::ltipassback);
1679: &renderpage($request,$file,undef,undef,$donemsg);
1680: if (@Apache::lonhomework::ltipassback) {
1681: unless ($registered_cleanup) {
1682: my $handlers = $request->get_handlers('PerlCleanupHandler');
1683: $request->set_handlers('PerlCleanupHandler' =>
1684: [\&do_ltipassback,@{$handlers}]);
1685: }
1686: }
1687: }
1688: #my $td=&tv_interval($t0);
1689: #&Apache::lonxml::debug("Spent $td seconds processing");
1690: # always turn off debug messages
1691: $Apache::lonxml::debug=0;
1692: &unset_permissions();
1693: return OK;
1694:
1695: }
1696:
1697: sub template_dropdown_datastructure {
1698: # gathering the all templates and their path, title, category and help topic
1699: my @templates = get_template_list('problem');
1700: # template category => title
1701: my %tmplthash = ();
1702: # template title => path
1703: my %tmpltcontent = ();
1704:
1705: foreach my $template (@templates){
1706: # put in hash if the template is not empty
1707: unless ($template->[1] eq ''){
1708: push(@{$tmplthash{$template->[2]}}, $template->[1]);
1709: push(@{$tmpltcontent{$template->[1]}},$template->[0]);
1710: }
1711: }
1712:
1713: my $catList = [];
1714: foreach my $cat (sort keys %tmplthash) {
1715: my $catItems = [];
1716: foreach my $title (sort @{$tmplthash{$cat}}) {
1717: my $path = $tmpltcontent{$title}->[0];
1718: my $code;
1719: open(FH, "<$path");
1720: while(<FH>){
1721: $code.= $_ unless $_ =~ /(<problem>)|(<\/problem>)/;
1722: }
1723: close(FH);
1724:
1725: if ($code ne '') {
1726: my $href = 'javascript:insertText(\'' . &convert_for_js(&HTML::Entities::encode($code,'<>&"')) . '\')';
1727: my $currItem = [$href, $title, undef];
1728: push @{$catItems}, $currItem;
1729: }
1730: }
1731: push @{$catList}, [$catItems, $cat, undef];
1732: }
1733:
1734: return $catList;
1735: }
1736:
1737: sub responseblock_dropdown_datastructure {
1738:
1739: my $mathCat = [
1740: [
1741: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_formularesponse())) . "\')", &mt("Formula Response"), undef],
1742: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_functionplotresponse())) . "\')", &mt("Function Plot Response"), undef],
1743: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_mathresponse())) . "\')", &mt("Math Response"), undef],
1744: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_numericalresponse())) . "\')", &mt("Numerical Response"), undef]
1745: ],
1746: &mt("Math"),
1747: undef
1748: ];
1749:
1750: my $miscCat = [
1751: [
1752: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_imageresponse())) . "\')", &mt("Click on Image"), undef],
1753: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_customresponse())) . "\')", &mt("Custom Response"), undef],
1754: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_externalresponse())) . "\')", &mt("External Response"), undef],
1755: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_matchresponse())) . "\')", &mt("Match Two Lists"), undef],
1756: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_radiobuttonresponse())) . "\')", &mt("One out of N statements"), undef],
1757: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_optionresponse())) . "\')", &mt("Select from Options"), undef],
1758: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_rankresponse())) . "\')", &mt("Rank Values"), undef]
1759: ],
1760: &mt("Miscellaneous"),
1761: undef
1762: ];
1763:
1764: my $chemCat = [
1765: [
1766: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_reactionresponse())) . "\')", &mt("Chemical Reaction"), undef],
1767: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_organicresponse())) . "\')", &mt("Organic Chemical Structure"), undef]
1768: ],
1769: &mt("Chemistry"),
1770: undef
1771: ];
1772:
1773: my $textCat = [
1774: [
1775: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_stringresponse())) . "\')", &mt("String Response"), undef],
1776: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_essayresponse())) . "\')", &mt("Essay"), undef]
1777: ],
1778: &mt("Text"),
1779: undef
1780: ];
1781:
1782: return [$mathCat, $miscCat, $chemCat, $textCat];
1783: }
1784:
1785:
1786: sub conditional_scripting_datastructure {
1787: # TODO: corresponding routines should be used for the javascript:insertText parts
1788: # instead of the placeholder routine default_xml_tag with the tags
1789: # e.g. &default_xml_tag("postanswerdate") should be replaced with a routine which
1790: # returns the corresponding content for this case
1791:
1792: #TODO translated is currently temporarily here, another solution should be found where the
1793: # needed string can be retrieved
1794:
1795: my $translatedTag = '
1796: <translated>
1797: <lang which="en"></lang>
1798: <lang which="default"></lang>
1799: </translated>';
1800: return [
1801: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode($translatedTag)) . "\')", &mt("Translated Block"), undef],
1802: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("block"))) . "\')", &mt("Conditional Block"), undef],
1803: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("postanswerdate"))) . "\')", &mt("After Answer Date Block"), undef],
1804: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("preduedate"))) . "\')", &mt("Before Due Date Block"), undef],
1805: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("solved"))) . "\')", &mt("Block For After Solved"), undef],
1806: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("notsolved"))) . "\')", &mt("Block For When Not Solved"), undef]
1807: ];
1808: }
1809:
1810: sub misc_datastructure {
1811: return [
1812: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_img())) . "\')", &mt("Image"), undef],
1813: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::lonplot::insert_gnuplot())) . "\')", &mt("GNU Plot"), undef],
1814: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_organicstructure())) . "\')", &mt("Organic Structure"), undef],
1815: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_script())) . "\')", &mt("Script Block"), undef],
1816: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("allow"))) . "\')", &mt("File Dependencies"), undef],
1817: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("import"))) . "\')", &mt("Import a File"), undef],
1818: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::londefdef::insert_meta())) . "\')", &mt("Custom Metadata"), undef],
1819: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("part"))) . "\')", &mt("Problem Part"), undef]
1820: ];
1821: }
1822:
1823: # helper routine for the datastructure building subroutines
1824: sub default_xml_tag {
1825: my ($tag) = @_;
1826: return "\n<$tag></$tag>";
1827: }
1828:
1829:
1830: sub helpmenu_datastructure {
1831:
1832: # filename, title, width, height
1833: my $helpers = [
1834: ['Problem_LON-CAPA_Functions.hlp', &mt('Script Functions'), 800, 600],
1835: ['Greek_Symbols.hlp', &mt('Greek Symbols'), 500, 600],
1836: ['Other_Symbols.hlp', &mt('Other Symbols'), 500, 600],
1837: ['Authoring_Output_Tags.hlp', &mt('Output Tags'), 800, 600],
1838: ['Authoring_Multilingual_Problems.hlp',
1839: &mt('How to create problems in different languages'), 800, 600],
1840: ['loncapa.html', &mt('Language reference'), 800, 600],
1841: ];
1842:
1843: my $help_structure = [];
1844:
1845: foreach my $count (0..(scalar(@{$helpers})-1)) {
1846: my $filename = $helpers->[$count]->[0];
1847: my $title = $helpers->[$count]->[1];
1848: my $width = $helpers->[$count]->[2];
1849: my $height = $helpers->[$count]->[3];
1850: if ($width eq '') {
1851: $width = 500;
1852: }
1853: if ($height eq '') {
1854: $height = 600;
1855: }
1856: my $href = &HTML::Entities::encode("javascript:openMyModal('/adm/help/$filename',$width,$height,'yes');");
1857: push @{$help_structure}, [$href, $title, undef];
1858: }
1859:
1860: return $help_structure;
1861: }
1862:
1863: # we need substitution to not break javascript code
1864: sub convert_for_js {
1865: my $return = shift;
1866: $return =~ s|script|ESCAPEDSCRIPT|g;
1867: $return =~ s|\\|\\\\|g;
1868: $return =~ s|\n|\\r\\n|g;
1869: $return =~ s|'|\\'|g;
1870: $return =~ s|'|\\'|g;
1871: return $return;
1872: }
1873:
1874: sub do_ltipassback {
1875: if (@Apache::lonhomework::ltipassback) {
1876: foreach my $item (@Apache::lonhomework::ltipassback) {
1877: if (ref($item) eq 'HASH') {
1878: if ((ref($item->{'lti'}) eq 'HASH') && ($item->{'cid'} =~ /^($match_domain)_($match_courseid)$/)) {
1879: my ($cdom,$cnum) = ($1,$2);
1880: my $ckey = $item->{'lti'}->{'key'};
1881: my $secret = $item->{'lti'}->{'secret'};
1882: my $msgformat = $item->{'lti'}->{'passbackformat'};
1883: my $sigmethod = 'HMAC-SHA1';
1884: my $id = $item->{'pbid'};
1885: my $url = $item->{'pburl'};
1886: my $scope = $item->{'scope'};
1887: my $map = $item->{'ltimap'};
1888: my $symb = $item->{'ltisymb'};
1889: my $uname = $item->{'uname'};
1890: my $udom = $item->{'udom'};
1891: my $scoretype = $item->{'format'};
1892: my ($total,$possible);
1893: if ($scope eq 'resource') {
1894: $total = $item->{'total'};
1895: $possible = $item->{'possible'};
1896: } elsif ($scope eq 'map') {
1897: ($total,$possible) = &get_lti_score($uname,$udom,$map);
1898: } elsif ($scope eq 'course') {
1899: ($total,$possible) = &get_lti_score($uname,$udom);
1900: }
1901: if (($ckey ne '') && ($secret ne '') && ($id ne '') && ($url ne '') && ($possible)) {
1902: &LONCAPA::ltiutils::send_grade($id,$url,$ckey,$secret,$scoretype,$sigmethod,
1903: $msgformat,$total,$possible);
1904: }
1905: }
1906: }
1907: }
1908: undef(@Apache::lonhomework::ltipassback);
1909: }
1910: }
1911:
1912: sub get_lti_score {
1913: my ($uname,$udom,$mapurl) = @_;
1914: my $navmap = Apache::lonnavmaps::navmap->new($uname,$udom);
1915: if (ref($navmap)) {
1916: my $iterator;
1917: if ($mapurl ne '') {
1918: my $map = $navmap->getResourceByUrl($mapurl);
1919: my $firstres = $map->map_start();
1920: my $finishres = $map->map_finish();
1921: $iterator = $navmap->getIterator($firstres,$finishres,undef,1);
1922: } else {
1923: $iterator = $navmap->getIterator(undef,undef,undef,1);
1924: }
1925: if (ref($iterator)) {
1926: my $depth = 1;
1927: my $total = 0;
1928: my $possible = 0;
1929: $iterator->next(); # ignore first BEGIN_MAP
1930: my $curRes = $iterator->next();
1931: while ( $depth > 0 ) {
1932: if ($curRes == $iterator->BEGIN_MAP()) {$depth++;}
1933: if ($curRes == $iterator->END_MAP()) { $depth--; }
1934: if (ref($curRes) && $curRes->is_gradable() && !$curRes->randomout) {
1935: my $parts = $curRes->parts();
1936: foreach my $part (@{$parts}) {
1937: next if ($curRes->solved($part) eq 'excused');
1938: $total += $curRes->weight($part) * $curRes->awarded($part);
1939: $possible += $curRes->weight($part);
1940: }
1941: }
1942: $curRes = $iterator->next();
1943: }
1944: if ($total > $possible) {
1945: $total = $possible;
1946: }
1947: return ($total,$possible);
1948: }
1949: }
1950: return;
1951: }
1952:
1953: 1;
1954: __END__
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