1: # The LearningOnline Network with CAPA
2: # The LON-CAPA Homework handler
3: #
4: # $Id: lonhomework.pm,v 1.344.2.10.4.7 2024/02/27 17:10:23 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::loncourseuser();
53: use Apache::grades();
54: use Apache::Constants qw(:common);
55: use Apache::loncommon();
56: use Apache::lonparmset();
57: use Apache::lonnavmaps();
58: use Apache::lonlocal;
59: use LONCAPA qw(:DEFAULT :match);
60: use LONCAPA::ltiutils();
61: use Time::HiRes qw( gettimeofday tv_interval );
62: use HTML::Entities();
63: use File::Copy();
64:
65: # FIXME - improve commenting
66:
67: my $registered_cleanup;
68:
69: BEGIN {
70: &Apache::lonxml::register_insert();
71: }
72:
73:
74: =pod
75:
76: =item set_bubble_lines()
77:
78: Called at analysis time to set the bubble lines
79: hash for the problem.. This should be called in the
80: end_problemtype tag in analysis mode.
81:
82: We fetch the hash of part id counters from lonxml
83: and push them into analyze:{part_id.bubble_lines}.
84:
85: =cut
86:
87: sub set_bubble_lines {
88: my %bubble_counters = &Apache::lonxml::get_bubble_line_hash();
89:
90: foreach my $key (keys(%bubble_counters)) {
91: $Apache::lonhomework::analyze{"$key.bubble_lines"} =
92: $bubble_counters{"$key"};
93: }
94: }
95:
96: #
97: # Decides what targets to render for.
98: # Implicit inputs:
99: # Various session environment variables:
100: # request.state - published - is a /res/ resource
101: # uploaded - is a /uploaded/ resource
102: # contruct - is a /priv/ resource
103: # form.grade_target - a form parameter requesting a specific target
104: sub get_target {
105: &Apache::lonxml::debug("request.state = $env{'request.state'}");
106: if( defined($env{'form.grade_target'})) {
107: &Apache::lonxml::debug("form.grade_target= $env{'form.grade_target'}");
108: } else {
109: &Apache::lonxml::debug("form.grade_target <undefined>");
110: }
111: if (($env{'request.state'} eq "published") ||
112: ($env{'request.state'} eq "uploaded")) {
113: if ( defined($env{'form.grade_target'} )
114: && ($env{'form.grade_target'} eq 'tex')) {
115: return ($env{'form.grade_target'});
116: } elsif ( defined($env{'form.grade_target'} )
117: && ($Apache::lonhomework::viewgrades eq 'F' )) {
118: return ($env{'form.grade_target'});
119: } elsif ( $env{'form.grade_target'} eq 'webgrade'
120: && ($Apache::lonhomework::queuegrade eq 'F' )) {
121: return ($env{'form.grade_target'});
122: } elsif ($env{'form.grade_target'} eq 'answer') {
123: if ($env{'form.answer_output_mode'} eq 'tex') {
124: return ($env{'form.grade_target'});
125: }
126: }
127: if ($env{'form.webgrade'} &&
128: ($Apache::lonhomework::modifygrades eq 'F'
129: || $Apache::lonhomework::queuegrade eq 'F' )) {
130: return ('grade','webgrade');
131: }
132: if ( defined($env{'form.submitted'}) &&
133: ( !defined($env{'form.newrandomization'}))) {
134: return ('grade', 'web');
135: } else {
136: return ('web');
137: }
138: } elsif ($env{'request.state'} eq "construct") {
139: #
140: # We are in construction space, editing and testing problems
141: #
142: if ( defined($env{'form.grade_target'}) ) {
143: return ($env{'form.grade_target'});
144: }
145: if ( defined($env{'form.preview'})) {
146: if ( defined($env{'form.submitted'})) {
147: #
148: # We are doing a problem preview
149: #
150: return ('grade', 'web');
151: } else {
152: return ('web');
153: }
154: } else {
155: if ($env{'form.problemstate'} eq 'WEB_GRADE') {
156: return ('grade','webgrade','answer');
157: } elsif ($env{'form.problemmode'} eq 'view') {
158: return ('grade','web','answer');
159: } elsif ($env{'form.problemmode'} eq 'saveview') {
160: return ('modified','web','answer');
161: } elsif ($env{'form.problemmode'} eq 'discard') {
162: return ('web','answer');
163: } elsif (($env{'form.problemmode'} eq 'saveedit') ||
164: ($env{'form.problemmode'} eq 'undo')) {
165: my %editors = &Apache::loncommon::permitted_editors();
166: if ($editors{'edit'}) {
167: return ('modified','no_output_web','edit');
168: } else {
169: return ('web');
170: }
171: } elsif ($env{'form.problemmode'} eq 'edit') {
172: my %editors = &Apache::loncommon::permitted_editors();
173: if ($editors{'edit'}) {
174: return ('no_output_web','edit');
175: } else {
176: return ('web');
177: }
178: } else {
179: return ('web');
180: }
181: }
182: #
183: # End of Authoring Space
184: #
185: }
186: #
187: # Huh? We are nowhere, so do nothing.
188: #
189: return ();
190: }
191:
192: sub setup_vars {
193: my ($target) = @_;
194: return ';'
195: # return ';$external::target='.$target.';';
196: }
197:
198: sub proctor_checked_in {
199: my ($slot_name,$slot,$type)=@_;
200: my @possible_proctors=split(",",$slot->{'proctor'});
201:
202: return 1 if (!@possible_proctors);
203:
204: my $key;
205: if ($type eq 'Task') {
206: my $version=$Apache::lonhomework::history{'resource.0.version'};
207: $key ="resource.$version.0.checkedin";
208: } elsif (($type eq 'problem') || ($type eq 'tool')) {
209: $key ='resource.0.checkedin';
210: }
211: # backward compatability, used to be username@domain,
212: # now is username:domain
213: my $who = $Apache::lonhomework::history{$key};
214: if ($who !~ /:/) {
215: $who =~ tr/@/:/;
216: }
217: foreach my $possible (@possible_proctors) {
218: if ($who eq $possible
219: && $Apache::lonhomework::history{$key.'.slot'} eq $slot_name) {
220: return 1;
221: }
222: }
223: return 0;
224: }
225:
226: sub check_slot_access {
227: my ($id,$type,$symb,$partlist)=@_;
228:
229: # does it pass normal muster
230: my ($status,$datemsg)=&check_access($id,$symb);
231:
232: my $useslots = &Apache::lonnet::EXT("resource.0.useslots",$symb);
233: if ($useslots ne 'resource' && $useslots ne 'map'
234: && $useslots ne 'map_map') {
235: return ($status,$datemsg);
236: }
237:
238: if ($status eq 'SHOW_ANSWER' ||
239: $status eq 'CLOSED' ||
240: $status eq 'INVALID_ACCESS' ||
241: $status eq 'UNAVAILABLE') {
242: return ($status,$datemsg);
243: }
244: if ($env{'request.state'} eq "construct") {
245: return ($status,$datemsg);
246: }
247:
248: if ($type eq 'Task') {
249: my $version=$Apache::lonhomework::history{'resource.version'};
250: if ($Apache::lonhomework::history{"resource.$version.0.checkedin"} &&
251: $Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass') {
252: return ('SHOW_ANSWER');
253: }
254: } elsif (($type eq 'problem') &&
255: ($Apache::lonhomework::browse eq 'F') &&
256: ($ENV{'REMOTE_ADDR'} eq '127.0.0.1') &&
257: ($env{'form.grade_courseid'} eq $env{'request.course.id'}) &&
258: (&Apache::lonnet::allowed('mgr',$env{'request.course.id'}))) {
259: return ($status,$datemsg);
260: }
261:
262: my $availablestudent = &Apache::lonnet::EXT("resource.0.availablestudent",$symb);
263: my $available = &Apache::lonnet::EXT("resource.0.available",$symb);
264: my @slots= (split(':',$availablestudent),split(':',$available));
265:
266: # if (!@slots) {
267: # return ($status,$datemsg);
268: # }
269: my $slotstatus='NOT_IN_A_SLOT';
270: my ($returned_slot,$slot_name);
271: my $now = time;
272: my $num_usable_slots = 0;
273: unless ($symb) {
274: ($symb) = &Apache::lonnet::whichuser();
275: }
276: foreach my $slot (@slots) {
277: $slot =~ s/(^\s*|\s*$)//g;
278: &Apache::lonxml::debug("getting $slot");
279: my %slot=&Apache::lonnet::get_slot($slot);
280: &Apache::lonhomework::showhash(%slot);
281: next if ($slot{'endtime'} < $now);
282: $num_usable_slots ++;
283: if ($slot{'starttime'} < $now &&
284: $slot{'endtime'} > $now &&
285: &Apache::loncommon::check_ip_acc($slot{'ip'})) {
286: &Apache::lonxml::debug("$slot is good");
287: $slotstatus='NEEDS_CHECKIN';
288: $returned_slot=\%slot;
289: $slot_name=$slot;
290: last;
291: }
292: }
293: if ($slotstatus eq 'NEEDS_CHECKIN' &&
294: &proctor_checked_in($slot_name,$returned_slot,$type)) {
295: &Apache::lonxml::debug("proctor checked in");
296: $slotstatus=$status;
297: }
298:
299: my ($is_correct,$got_grade,$checkin,$checkinslot,$checkedin,$consumed_uniq);
300: if ($type eq 'Task') {
301: my $version=$Apache::lonhomework::history{'resource.0.version'};
302: $checkin = "resource.$version.0.checkedin";
303: $got_grade =
304: ($Apache::lonhomework::history{"resource.$version.0.status"}
305: =~ /^(?:pass|fail)$/);
306: $is_correct =
307: ($Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass'
308: || $Apache::lonhomework::history{"resource.0.solved"} =~ /^correct_/ );
309: $checkedin =
310: $Apache::lonhomework::history{"resource.$version.0.checkedin"};
311: } elsif (($type eq 'problem') || ($type eq 'tool')) {
312: $checkin = 'resource.0.checkedin';
313: $checkedin = $Apache::lonhomework::history{$checkin};
314: }
315: if ($checkedin) {
316: $checkinslot = $Apache::lonhomework::history{"$checkin.slot"};
317: my %slot=&Apache::lonnet::get_slot($checkinslot);
318: $consumed_uniq = $slot{'uniqueperiod'};
319: }
320: if (($type eq 'problem') || ($type eq 'tool')) {
321: if ((ref($partlist) eq 'ARRAY') && (@{$partlist} > 0)) {
322: my ($numcorrect,$numgraded) = (0,0);
323: foreach my $part (@{$partlist}) {
324: my $currtries = $Apache::lonhomework::history{"resource.$part.tries"};
325: my $maxtries = &Apache::lonnet::EXT("resource.$part.maxtries",$symb);
326: my $probstatus = &Apache::structuretags::get_problem_status($part);
327: my $earlyout;
328: unless (($probstatus eq 'no') ||
329: ($probstatus eq 'no_feedback_ever')) {
330: if ($Apache::lonhomework::history{"resource.$part.solved"} =~/^correct_/) {
331: $numcorrect ++;
332: } else {
333: $earlyout = 1;
334: }
335: }
336: if ($currtries == $maxtries) {
337: $earlyout = 1;
338: } else {
339: $numgraded ++;
340: }
341: last if ($earlyout);
342: }
343: my $numparts = scalar(@{$partlist});
344: if ($numparts == $numcorrect) {
345: $is_correct = 1;
346: }
347: if ($numparts == $numgraded) {
348: $got_grade = 1;
349: }
350: } else {
351: my $currtries = $Apache::lonhomework::history{"resource.0.tries"};
352: my $maxtries = &Apache::lonnet::EXT("resource.0.maxtries",$symb);
353: my $probstatus = &Apache::structuretags::get_problem_status('0');
354: unless (($probstatus eq 'no') ||
355: ($probstatus eq 'no_feedback_ever')) {
356: $is_correct =
357: ($Apache::lonhomework::history{"resource.0.solved"} =~/^correct_/);
358: }
359: unless (($currtries == $maxtries) || ($is_correct)) {
360: $got_grade = 1;
361: }
362: }
363: }
364:
365: &Apache::lonxml::debug(" slot is $slotstatus checkedin ($checkedin) got_grade ($got_grade) is_correct ($is_correct)");
366:
367: # no slot is currently open, and has been checked in for this version
368: # but hasn't got a grade, therefore must be awaiting a grade
369: if (!defined($slot_name)
370: && $checkedin
371: && !$got_grade) {
372: return ('WAITING_FOR_GRADE');
373: }
374:
375: # Previously used slot is no longer open, and has been checked in for this version.
376: # However, the problem is not closed, and potentially, another slot might be
377: # used to gain access to it to work on it, until the due date is reached, and the
378: # problem then becomes CLOSED. Therefore return the slotstatus -
379: # (which will be one of: NOT_IN_A_SLOT, RESERVABLE, RESERVABLE_LATER, or NOTRESERVABLE).
380:
381: if (!defined($slot_name) && (($type eq 'problem') || ($type eq 'tool'))) {
382: if ($slotstatus eq 'NOT_IN_A_SLOT') {
383: if (!$num_usable_slots) {
384: if ($env{'request.course.id'}) {
385: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
386: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
387: $slotstatus = 'NOTRESERVABLE';
388: my ($reservable_now_order,$reservable_now,$reservable_future_order,
389: $reservable_future) =
390: &Apache::loncommon::get_future_slots($cnum,$cdom,$now,$symb);
391: if ((ref($reservable_now_order) eq 'ARRAY') && (ref($reservable_now) eq 'HASH')) {
392: if (@{$reservable_now_order} > 0) {
393: if ((!$checkedin) || (ref($consumed_uniq) ne 'ARRAY')) {
394: $slotstatus = 'RESERVABLE';
395: $datemsg = $reservable_now->{$reservable_now_order->[-1]}{'endreserve'};
396: } else {
397: my ($uniqstart,$uniqend,$useslot);
398: if (ref($consumed_uniq) eq 'ARRAY') {
399: ($uniqstart,$uniqend)=@{$consumed_uniq};
400: }
401: foreach my $slot (reverse(@{$reservable_now_order})) {
402: if ($reservable_now->{$slot}{'uniqueperiod'} =~ /^(\d+)\,(\d+)$/) {
403: my ($new_uniq_start,$new_uniq_end) = ($1,$2);
404: next if (!
405: ($uniqstart < $new_uniq_start && $uniqend < $new_uniq_start) ||
406: ($uniqstart > $new_uniq_end && $uniqend > $new_uniq_end ));
407: }
408: $useslot = $slot;
409: last;
410: }
411: if ($useslot) {
412: $slotstatus = 'RESERVABLE';
413: $datemsg = $reservable_now->{$useslot}{'endreserve'};
414: }
415: }
416: }
417: }
418: unless ($slotstatus eq 'RESERVABLE') {
419: if ((ref($reservable_future_order) eq 'ARRAY') && (ref($reservable_future) eq 'HASH')) {
420: if (@{$reservable_future_order} > 0) {
421: if ((!$checkedin) || (ref($consumed_uniq) ne 'ARRAY')) {
422: $slotstatus = 'RESERVABLE_LATER';
423: $datemsg = $reservable_future->{$reservable_future_order->[0]}{'startreserve'};
424: } else {
425: my ($uniqstart,$uniqend,$useslot);
426: if (ref($consumed_uniq) eq 'ARRAY') {
427: ($uniqstart,$uniqend)=@{$consumed_uniq};
428: }
429: foreach my $slot (@{$reservable_future_order}) {
430: if ($reservable_future->{$slot}{'uniqueperiod'} =~ /^(\d+),(\d+)$/) {
431: my ($new_uniq_start,$new_uniq_end) = ($1,$2);
432: next if (!
433: ($uniqstart < $new_uniq_start && $uniqend < $new_uniq_start) ||
434: ($uniqstart > $new_uniq_end && $uniqend > $new_uniq_end ));
435: }
436: $useslot = $slot;
437: last;
438: }
439: if ($useslot) {
440: $slotstatus = 'RESERVABLE_LATER';
441: $datemsg = $reservable_future->{$useslot}{'startreserve'};
442: }
443: }
444: }
445: }
446: }
447: }
448: }
449: }
450: return ($slotstatus,$datemsg);
451: }
452:
453: if ($slotstatus eq 'NOT_IN_A_SLOT'
454: && $checkedin ) {
455:
456: if ($got_grade) {
457: return ('SHOW_ANSWER');
458: } else {
459: return ('WAITING_FOR_GRADE');
460: }
461:
462: }
463:
464: if ( $is_correct) {
465: if (($type eq 'problem') || ($type eq 'tool')) {
466: return ($status);
467: }
468: return ('SHOW_ANSWER');
469: }
470:
471: if ( $status eq 'CANNOT_ANSWER' &&
472: ($slotstatus ne 'NEEDS_CHECKIN' && $slotstatus ne 'NOT_IN_A_SLOT')) {
473: return ($status,$datemsg);
474: }
475:
476: return ($slotstatus,$datemsg,$slot_name,$returned_slot);
477: }
478:
479: # JB, 9/24/2002: Any changes in this function may require a change
480: # in lonnavmaps::resource::getDateStatus.
481: sub check_access {
482: my ($id,$symb) = @_;
483: my $date ='';
484: my $status;
485: my $datemsg = '';
486: my $lastdate = '';
487: my $type;
488: my $passed;
489:
490: if ($env{'request.state'} eq "construct") {
491: if ($env{'form.problemstate'}) {
492: if ($env{'form.problemstate'} =~ /^CANNOT_ANSWER/) {
493: if ( ! ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct'
494: && &hide_problem_status())) {
495: return ('CANNOT_ANSWER',
496: &mt('is in this state due to author settings.'));
497: }
498: } else {
499: return ($env{'form.problemstate'},
500: &mt('is in this state due to author settings.'));
501: }
502: }
503: &Apache::lonxml::debug("in construction ignoring dates");
504: $status='CAN_ANSWER';
505: $datemsg=&mt('is in under construction');
506: # return ($status,$datemsg);
507: }
508:
509: &Apache::lonxml::debug("checking for part :$id:");
510: &Apache::lonxml::debug("time:".time);
511:
512: unless ($symb) {
513: ($symb)=&Apache::lonnet::whichuser();
514: }
515: &Apache::lonxml::debug("symb:".$symb);
516: #if ($env{'request.state'} ne "construct" && $symb ne '') {
517: if ($env{'request.state'} ne "construct") {
518: my $idacc = &Apache::lonnet::EXT("resource.$id.acc",$symb);
519: my $allowed=&Apache::loncommon::check_ip_acc($idacc);
520: if (!$allowed && ($Apache::lonhomework::browse ne 'F')) {
521: $status='INVALID_ACCESS';
522: $date=&mt("can not be accessed from your location.");
523: return($status,$date);
524: }
525: if ($env{'form.grade_imsexport'}) {
526: if (($env{'request.course.id'}) &&
527: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
528: return ('SHOW_ANSWER');
529: }
530: }
531: foreach my $temp ("opendate","duedate","answerdate") {
532: $lastdate = $date;
533: if ($temp eq 'duedate') {
534: $date = &due_date($id,$symb);
535: } else {
536: $date = &Apache::lonnet::EXT("resource.$id.$temp",$symb);
537: }
538:
539: my $thistype = &Apache::lonnet::EXT("resource.$id.$temp.type",$symb);
540: if ($thistype =~ /^(con_lost|no_such_host)/ ||
541: $date =~ /^(con_lost|no_such_host)/) {
542: $status='UNAVAILABLE';
543: $date=&mt("may open later.");
544: return($status,$date);
545: }
546: if ($thistype eq 'date_interval') {
547: if ($temp eq 'opendate') {
548: $date=&Apache::lonnet::EXT("resource.$id.duedate",$symb)-$date;
549: }
550: if ($temp eq 'answerdate') {
551: $date=&Apache::lonnet::EXT("resource.$id.duedate",$symb)+$date;
552: }
553: }
554: &Apache::lonxml::debug("found :$date: for :$temp:");
555: if ($date eq '') {
556: $date = &mt("an unknown date"); $passed = 0;
557: } elsif ($date eq 'con_lost') {
558: $date = &mt("an indeterminate date"); $passed = 0;
559: } else {
560: if (time < $date) { $passed = 0; } else { $passed = 1; }
561: $date = &Apache::lonlocal::locallocaltime($date);
562: }
563: if (!$passed) { $type=$temp; last; }
564: }
565: &Apache::lonxml::debug("have :$type:$passed:");
566: if ($passed) {
567: $status='SHOW_ANSWER';
568: $datemsg=$date;
569: } elsif ($type eq 'opendate') {
570: $status='CLOSED';
571: $datemsg = &mt('will open on [_1]',$date);
572: } elsif ($type eq 'duedate') {
573: $status='CAN_ANSWER';
574: $datemsg = &mt('is due at [_1]',$date);
575: } elsif ($type eq 'answerdate') {
576: $status='CLOSED';
577: $datemsg = &mt('was due on [_1], and answers will be available on [_2]',
578: $lastdate,$date);
579: }
580: }
581: if ($status eq 'CAN_ANSWER' ||
582: (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED'))) {
583: #check #tries, and if correct.
584: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
585: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries",$symb);
586: if ( $tries eq '' ) { $tries = '0'; }
587: if ( $maxtries eq '' &&
588: $env{'request.state'} ne 'construct') { $maxtries = '2'; }
589: if ($maxtries && $tries >= $maxtries) { $status = 'CANNOT_ANSWER'; }
590: # if (correct and show prob status) or excused then CANNOT_ANSWER
591: if ( ($Apache::lonhomework::history{"resource.$id.solved"}=~/^correct/)
592: && (&show_problem_status()) ) {
593: if (($Apache::lonhomework::history{"resource.$id.awarded"} >= 1) ||
594: (&Apache::lonnet::EXT("resource.$id.retrypartial",$symb) !~/^1|on|yes$/i)) {
595: $status = 'CANNOT_ANSWER';
596: }
597: } elsif ($Apache::lonhomework::history{"resource.$id.solved"}=~/^excused/) {
598: $status = 'CANNOT_ANSWER';
599: }
600: if ($status eq 'CANNOT_ANSWER'
601: && &show_answer_problem_status()) {
602: $status = 'SHOW_ANSWER';
603: }
604: }
605: if ($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER') {
606: my @interval=&Apache::lonnet::EXT("resource.$id.interval",$symb);
607: &Apache::lonxml::debug("looking for interval @interval");
608: if ($interval[0]) {
609: my $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
610: &Apache::lonxml::debug("looking for accesstime $first_access");
611: if (!$first_access) {
612: $status='NOT_YET_VIEWED';
613: my $due_date = &due_date($id,$symb);
614: my $seconds_left = $due_date - time;
615: if ($seconds_left > $interval[0] || $due_date eq '') {
616: $seconds_left = $interval[0];
617: }
618: $datemsg=&seconds_to_human_length($seconds_left);
619: }
620: }
621: }
622:
623: #if (($status ne 'CLOSED') && ($Apache::lonhomework::type eq 'exam') &&
624: # (!$Apache::lonhomework::history{"resource.0.outtoken"})) {
625: # return ('UNCHECKEDOUT','needs to be checked out');
626: #}
627:
628: &Apache::lonxml::debug("sending back :$status:$datemsg:");
629: if (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED')) {
630: &Apache::lonxml::debug("should be allowed to browse a resource when closed");
631: $status='CAN_ANSWER';
632: $datemsg=&mt('is closed but you are allowed to view it');
633: }
634:
635: return ($status,$datemsg);
636: }
637: # this should work exactly like the copy in lonnavmaps.pm
638: sub due_date {
639: my ($part_id,$symb,$udom,$uname)=@_;
640: my $date;
641: my @interval= &Apache::lonnet::EXT("resource.$part_id.interval",$symb,
642: $udom,$uname);
643: &Apache::lonxml::debug("looking for interval $part_id $symb @interval");
644: my $due_date= &Apache::lonnet::EXT("resource.$part_id.duedate",$symb,
645: $udom,$uname);
646: &Apache::lonxml::debug("looking for due_date $part_id $symb $due_date");
647: if ($interval[0] =~ /\d+/) {
648: my $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
649: &Apache::lonxml::debug("looking for first_access $first_access ($interval[1])");
650: if (defined($first_access)) {
651: my $interval = $first_access+$interval[0];
652: $date = (!$due_date || $interval < $due_date) ? $interval
653: : $due_date;
654: } else {
655: $date = $due_date;
656: }
657: } else {
658: $date = $due_date;
659: }
660: return $date;
661: }
662:
663: sub seconds_to_human_length {
664: my ($length)=@_;
665:
666: my $seconds=$length%60; $length=int($length/60);
667: my $minutes=$length%60; $length=int($length/60);
668: my $hours=$length%24; $length=int($length/24);
669: my $days=$length;
670:
671: my $timestr;
672: if ($days > 0) { $timestr.=&mt('[quant,_1,day]',$days); }
673: if ($hours > 0) { $timestr.=($timestr?", ":"").
674: &mt('[quant,_1,hour]',$hours); }
675: if ($minutes > 0) { $timestr.=($timestr?", ":"").
676: &mt('[quant,_1,minute]',$minutes); }
677: if ($seconds > 0) { $timestr.=($timestr?", ":"").
678: &mt('[quant,_1,second]',$seconds); }
679: return $timestr;
680: }
681:
682: sub showhash {
683: my (%hash) = @_;
684: &showhashsubset(\%hash,'.');
685: return '';
686: }
687:
688: sub showarray {
689: my ($array)=@_;
690: my $string="(";
691: foreach my $elm (@{ $array }) {
692: if (ref($elm) eq 'ARRAY') {
693: $string.=&showarray($elm);
694: } elsif (ref($elm) eq 'HASH') {
695: $string.= "HASH --- \n<br />";
696: $string.= &showhashsubset($elm,'.');
697: } else {
698: $string.="$elm,"
699: }
700: }
701: chop($string);
702: $string.=")";
703: return $string;
704: }
705:
706: sub showhashsubset {
707: my ($hash,$keyre) = @_;
708: my $resultkey;
709: foreach $resultkey (sort(keys(%$hash))) {
710: if ($resultkey !~ /$keyre/) { next; }
711: if (ref($$hash{$resultkey}) eq 'ARRAY' ) {
712: &Apache::lonxml::debug("$resultkey ---- ".
713: &showarray($$hash{$resultkey}));
714: } elsif (ref($$hash{$resultkey}) eq 'HASH' ) {
715: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
716: &showhashsubset($$hash{$resultkey},'.');
717: } else {
718: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
719: }
720: }
721: &Apache::lonxml::debug("\n<br />restored values^</br>\n");
722: return '';
723: }
724:
725: sub setuppermissions {
726: $Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$env{'request.filename'});
727: unless ($Apache::lonhomework::browse eq 'F') {
728: $Apache::lonhomework::browse=&Apache::lonnet::allowed('bro',$env{'request.filename'});
729: }
730: my $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'});
731: if (! $viewgrades &&
732: exists($env{'request.course.sec'}) &&
733: $env{'request.course.sec'} !~ /^\s*$/) {
734: $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'}.
735: '/'.$env{'request.course.sec'});
736: if ($viewgrades) {
737: $Apache::lonhomework::viewgradessec = $env{'request.course.sec'};
738: }
739: }
740: $Apache::lonhomework::viewgrades = $viewgrades;
741:
742: if ($Apache::lonhomework::browse eq 'F' &&
743: $env{'form.devalidatecourseresdata'} eq 'on') {
744: my (undef,$courseid) = &Apache::lonnet::whichuser();
745: &Apache::lonnet::devalidatecourseresdata($env{"course.$courseid.num"},
746: $env{"course.$courseid.domain"});
747: }
748:
749: my $modifygrades = &Apache::lonnet::allowed('mgr',$env{'request.course.id'});
750: if (! $modifygrades &&
751: exists($env{'request.course.sec'}) &&
752: $env{'request.course.sec'} !~ /^\s*$/) {
753: $modifygrades =
754: &Apache::lonnet::allowed('mgr',$env{'request.course.id'}.
755: '/'.$env{'request.course.sec'});
756: if ($modifygrades) {
757: $Apache::lonhomework::modifygradessec = $env{'request.course.sec'};
758: }
759: }
760: $Apache::lonhomework::modifygrades = $modifygrades;
761:
762: my $queuegrade = &Apache::lonnet::allowed('mqg',$env{'request.course.id'});
763: if (! $queuegrade &&
764: exists($env{'request.course.sec'}) &&
765: $env{'request.course.sec'} !~ /^\s*$/) {
766: $queuegrade =
767: &Apache::lonnet::allowed('qgr',$env{'request.course.id'}.
768: '/'.$env{'request.course.sec'});
769: }
770: $Apache::lonhomework::queuegrade = $queuegrade;
771: return '';
772: }
773:
774: sub unset_permissions {
775: undef($Apache::lonhomework::queuegrade);
776: undef($Apache::lonhomework::modifygrades);
777: undef($Apache::lonhomework::modifygradessec);
778: undef($Apache::lonhomework::viewgrades);
779: undef($Apache::lonhomework::viewgradessec);
780: undef($Apache::lonhomework::browse);
781: }
782:
783: sub setupheader {
784: my $request=$_[0];
785: &Apache::loncommon::content_type($request,'text/html');
786: if (!$Apache::lonxml::debug && ($ENV{'REQUEST_METHOD'} eq 'GET')) {
787: &Apache::loncommon::no_cache($request);
788: }
789: # $request->set_last_modified(&Apache::lonnet::metadata($request->uri,
790: # 'lastrevisiondate'));
791: $request->send_http_header;
792: return OK if $request->header_only;
793: return ''
794: }
795:
796: sub handle_save_or_undo {
797: my ($request,$problem,$result,$getobjref) = @_;
798:
799: my $file = &Apache::lonnet::filelocation("",$request->uri);
800: my $filebak =$file.".bak";
801: my $filetmp =$file.".tmp";
802: my $error=0;
803: if (($env{'form.problemmode'} eq 'undo') || ($env{'form.problemmode'} eq 'undoxml')) {
804: my $error=0;
805: if (!&File::Copy::copy($file,$filetmp)) { $error=1; }
806: if ((!$error) && (!&File::Copy::copy($filebak,$file))) { $error=1; }
807: if ((!$error) && (!&File::Copy::move($filetmp,$filebak))) { $error=1; }
808: if (!$error) {
809: &Apache::lonxml::info("<p><b>".
810: &mt("Undid changes, Switched [_1] and [_2]",
811: '<span class="LC_filename">'.$filebak.
812: '</span>',
813: '<span class="LC_filename">'.$file.
814: '</span>')."</b></p>");
815: } else {
816: &Apache::lonxml::info("<p><span class=\"LC_error\">".
817: &mt("Unable to undo, unable to switch [_1] and [_2]",
818: '<span class="LC_filename">'.
819: $filebak.'</span>',
820: '<span class="LC_filename">'.
821: $file.'</span>')."</span></p>");
822: $error=1;
823: }
824: } else {
825: &Apache::lonnet::correct_line_ends($result);
826:
827: my $fs=Apache::File->new(">$filebak");
828: if (defined($fs)) {
829: print $fs $$problem;
830: } else {
831: &Apache::lonxml::info("<span class=\"LC_error\">".
832: &mt("Unable to make backup [_1]",
833: '<span class="LC_filename">'.
834: $filebak.'</span>')."</span>");
835: $error=2;
836: }
837: my $fh=Apache::File->new(">$file");
838: if (defined($fh)) {
839: print $fh $$result;
840: if (ref($getobjref) eq 'SCALAR') {
841: if ($file =~ m{([^/]+)\.(html?)$}) {
842: my $fname = $1;
843: my $ext = $2;
844: my $path = $file;
845: $path =~ s/\Q$fname\E\.\Q$ext\E$//;
846: my (%allfiles,%codebase);
847: &Apache::lonnet::extract_embedded_items($file,\%allfiles,
848: \%codebase,$result);
849: if (keys(%allfiles) > 0) {
850: my $url = $request->uri;
851: my $state = <<STATE;
852: <input type="hidden" name="action" value="upload_embedded" />
853: <input type="hidden" name="url" value="$url" />
854: STATE
855: $$getobjref = "<h3>".&mt("Reference Warning")."</h3>".
856: "<p>".&mt("Completed upload of the file. This file contained references to other files.")."</p>".
857: "<p>".&mt("Please select the locations from which the referenced files are to be uploaded.")."</p>".
858: &Apache::loncommon::ask_for_embedded_content($url,$state,\%allfiles,\%codebase,
859: {'error_on_invalid_names' => 1,
860: 'ignore_remote_references' => 1,});
861: }
862: }
863: }
864: } else {
865: &Apache::lonxml::info('<span class="LC_error">'.
866: &mt("Unable to write to [_1]",
867: '<span class="LC_filename">'.
868: $file.'</span>').
869: '</span>');
870: $error|=4;
871: }
872: }
873: return $error;
874: }
875:
876: sub analyze_header {
877: my ($request) = @_;
878: my $js = &Apache::lonxml::setmode_javascript();
879:
880: # Breadcrumbs
881: my $brcrum = [{'href' => &Apache::loncommon::authorspace($request->uri),
882: 'text' => 'Authoring Space'},
883: {'href' => '',
884: 'text' => 'Problem Testing'},
885: {'href' => '',
886: 'text' => 'Analyzing a problem'}];
887:
888: my $result =
889: &Apache::loncommon::start_page('Analyzing a problem',
890: $js,
891: {'bread_crumbs' => $brcrum,})
892: .&Apache::loncommon::head_subbox(
893: &Apache::loncommon::CSTR_pageheader());
894: my %lt = &Apache::lonlocal::texthash(
895: edit => 'Edit',
896: editxml => 'EditXML',
897: );
898: $result .=
899: '<form name="lonhomework" method="post" action="'.
900: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
901: '<input type="hidden" name="problemmode" value="'.
902: $env{'form.problemmode'}.'" />'.
903: &Apache::structuretags::remember_problem_state().'
904: <div class="LC_edit_problem_analyze_header">';
905: my %editors = &Apache::loncommon::permitted_editors();
906: foreach my $item ('editxml','edit') {
907: next unless ($editors{$item});
908: $result .= '<input type="button" name="submitmode" value="'.$lt{$item}.'" '.
909: 'onclick="javascript:setmode(this.form,'."'$item'".')" />'.
910: "\n";
911: }
912: $result .=
913: '<hr />
914: <input type="button" name="submitmode" value="'.&mt("View").'" '.
915: 'onclick="javascript:setmode(this.form,'."'view'".')" />
916: <hr />
917: </div>'
918: .&Apache::lonxml::message_location().'
919: </form>';
920: &Apache::lonxml::add_messages(\$result);
921: $request->print($result);
922: $request->rflush();
923: }
924:
925: sub analyze_footer {
926: my ($request) = @_;
927: $request->print(&Apache::loncommon::end_page());
928: $request->rflush();
929: }
930:
931: sub analyze {
932: my ($request,$file) = @_;
933: &Apache::lonxml::debug("Analyze");
934: my $result;
935: my %overall;
936: my %seedexample;
937: my %allparts;
938: my $rndseed=$env{'form.rndseed'};
939: &analyze_header($request);
940: my %prog_state=
941: &Apache::lonhtmlcommon::Create_PrgWin($request,$env{'form.numtoanalyze'});
942: for(my $i=1;$i<$env{'form.numtoanalyze'}+1;$i++) {
943: &Apache::lonhtmlcommon::Increment_PrgWin($request,\%prog_state,'last problem');
944: if (&Apache::loncommon::connection_aborted($request)) { return; }
945: my $thisseed=$i+$rndseed;
946: my $subresult=&Apache::lonnet::ssi($request->uri,
947: ('grade_target' => 'analyze'),
948: ('rndseed' => $thisseed));
949: (my $garbage,$subresult)=split(/_HASH_REF__/,$subresult,2);
950: my %analyze=&Apache::lonnet::str2hash($subresult);
951: my @parts;
952: if (ref($analyze{'parts'}) eq 'ARRAY') {
953: @parts=@{ $analyze{'parts'} };
954: }
955: foreach my $part (@parts) {
956: if (!exists($allparts{$part})) {$allparts{$part}=1;};
957: if ($analyze{$part.'.type'} eq 'numericalresponse' ||
958: $analyze{$part.'.type'} eq 'stringresponse' ||
959: $analyze{$part.'.type'} eq 'formularesponse' ) {
960: foreach my $name (keys(%{ $analyze{$part.'.answer'} })) {
961: my $i=0;
962: foreach my $answer_part (@{ $analyze{$part.'.answer'}{$name} }) {
963: push( @{ $overall{$part.'.answer'}[$i] },
964: $answer_part);
965: my $concatanswer= join("\0",@{ $answer_part });
966: if (($concatanswer eq '') || ($concatanswer=~/^\@/)) {
967: $answer_part = ['<span class="LC_error">'.&mt('Error').'</span>'];
968: }
969: $seedexample{join("\0",$part,$i,@{$answer_part})}=
970: $thisseed;
971: $i++;
972: }
973: }
974: if (!keys(%{ $analyze{$part.'.answer'} })) {
975: my $answer_part =
976: ['<span class="LC_error">'.&mt('Error').'</span>'];
977: $seedexample{join("\0",$part,0,@{$answer_part})}=
978: $thisseed;
979: push( @{ $overall{$part.'.answer'}[0] },
980: $answer_part);
981: }
982: }
983: }
984: }
985: &Apache::lonhtmlcommon::Update_PrgWin($request,\%prog_state,&mt('Analyzing Results'));
986: $request->print('<hr />'
987: .'<h3>'
988: .&mt('List of possible answers')
989: .'</h3>'
990: );
991: foreach my $part (sort(keys(%allparts))) {
992: if ((ref($overall{$part.'.answer'}) eq 'ARRAY') &&
993: (@{$overall{$part.'.answer'}} > 0)) {
994: for (my $i=0;$i<scalar(@{ $overall{$part.'.answer'} });$i++) {
995: my $num_cols=scalar(@{ $overall{$part.'.answer'}[$i][0] });
996: $request->print(&Apache::loncommon::start_data_table()
997: .&Apache::loncommon::start_data_table_header_row()
998: .'<th colspan="'.($num_cols+1).'">'
999: .&mt('Part').' '.$part
1000: );
1001: if (scalar(@{ $overall{$part.'.answer'} }) > 1) {
1002: $request->print(' '.&mt('Answer [_1]',$i+1));
1003: }
1004: $request->print('</th>'
1005: .&Apache::loncommon::end_data_table_header_row()
1006: );
1007: my %frequency;
1008: foreach my $answer (sort {$a->[0] <=> $b->[0]} (@{ $overall{$part.'.answer'}[$i] })) {
1009: $frequency{join("\0",@{ $answer })}++;
1010: }
1011: $request->print(&Apache::loncommon::start_data_table_header_row()
1012: .'<th colspan="'.($num_cols).'">'.&mt('Answer').'</th>'
1013: .'<th>'.&mt('Frequency').'<br />'
1014: .'('.&mt('click for example').')</th>'
1015: .&Apache::loncommon::end_data_table_header_row()
1016: );
1017: foreach my $answer (sort {(split("\0",$a))[0] <=> (split("\0",$b))[0]} (keys(%frequency))) {
1018: $request->print(&Apache::loncommon::start_data_table_row()
1019: .'<td>'
1020: .join('</td><td>',split("\0",$answer))
1021: .'</td>'
1022: .'<td>'
1023: .'<a href="'.$request->uri.'?rndseed='.$seedexample{join("\0",$part,$i,$answer)}.'">'.$frequency{$answer}.'</a>'
1024: .'</td>'
1025: .&Apache::loncommon::end_data_table_row()
1026: );
1027: }
1028: $request->print(&Apache::loncommon::end_data_table());
1029: }
1030: } else {
1031: $request->print('<p class="LC_warning">'
1032: .&mt('Response [_1] is not analyzable at this time.',$part)
1033: .'</p>'
1034: );
1035: }
1036: }
1037: if (scalar(keys(%allparts)) == 0 ) {
1038: $request->print('<p class="LC_warning">'
1039: .&mt('Found no analyzable responses in this problem.'
1040: .' Currently only Numerical, Formula and String response styles are supported.')
1041: .'</p>'
1042: );
1043: }
1044: &Apache::lonhtmlcommon::Close_PrgWin($request,\%prog_state);
1045: &analyze_footer($request);
1046: &Apache::lonhomework::showhash(%overall);
1047: return $result;
1048: }
1049:
1050: {
1051: my $show_problem_status;
1052: sub reset_show_problem_status {
1053: undef($show_problem_status);
1054: }
1055:
1056: sub set_show_problem_status {
1057: my ($new_status) = @_;
1058: $show_problem_status = lc($new_status);
1059: }
1060:
1061: sub hide_problem_status {
1062: return ($show_problem_status eq 'no'
1063: || $show_problem_status eq 'no_feedback_ever');
1064: }
1065:
1066: sub show_problem_status {
1067: return ($show_problem_status eq 'yes'
1068: || $show_problem_status eq 'answer'
1069: || $show_problem_status eq '');
1070: }
1071:
1072: sub show_some_problem_status {
1073: return ($show_problem_status eq 'no');
1074: }
1075:
1076: sub show_no_problem_status {
1077: return ($show_problem_status eq 'no_feedback_ever');
1078: }
1079:
1080: sub show_answer_problem_status {
1081: return ($show_problem_status eq 'answer');
1082: }
1083: }
1084:
1085: sub editxmlmode {
1086: my ($request,$file) = @_;
1087: my $result;
1088: my $problem=&Apache::lonnet::getfile($file);
1089: if ($problem eq -1) {
1090: &Apache::lonxml::error(
1091: '<p class="LC_error">'
1092: .&mt('Unable to find [_1]',
1093: '<span class="LC_filename">'.$file.'</span>')
1094: .'</p>');
1095:
1096: $problem='';
1097: }
1098: if (($env{'form.problemmode'} eq 'saveeditxml') ||
1099: ($env{'form.problemmode'} eq 'saveviewxml') ||
1100: ($env{'form.problemmode'} eq 'undoxml')) {
1101: my $error=&handle_save_or_undo($request,\$problem,
1102: \$env{'form.editxmltext'});
1103: if (!$error) { $problem=&Apache::lonnet::getfile($file); }
1104: }
1105: &Apache::lonhomework::showhashsubset(\%env,'^form');
1106: if ($env{'form.problemmode'} eq 'saveviewxml') {
1107: &Apache::lonhomework::showhashsubset(\%env,'^form');
1108: $env{'form.problemmode'}='view';
1109: &renderpage($request,$file);
1110: } else {
1111: my ($rows,$cols) = &Apache::edit::textarea_sizes(\$problem);
1112: if ($cols > 80) { $cols = 80; }
1113: if ($cols < 70) { $cols = 70; }
1114: if ($rows < 20) { $rows = 20; }
1115: my $js =
1116: &Apache::edit::js_change_detection().
1117: &Apache::loncommon::resize_textarea_js().
1118: &Apache::lonxml::setmode_javascript().
1119: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
1120:
1121: # Breadcrumbs
1122: my $brcrum = [{'href' => &Apache::loncommon::authorspace($request->uri),
1123: 'text' => 'Authoring Space'},
1124: {'href' => '',
1125: 'text' => 'Problem Editing'}];
1126:
1127: my $start_page =
1128: &Apache::loncommon::start_page(&mt("EditXML [_1]",$file),$js,
1129: {'no_auto_mt_title' => 1,
1130: 'only_body' => 0,
1131: 'add_entries' => {
1132: 'onresize' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
1133: 'onload' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
1134: },
1135: 'bread_crumbs' => $brcrum,
1136: });
1137:
1138: $result=$start_page
1139: .&Apache::loncommon::head_subbox(
1140: &Apache::loncommon::CSTR_pageheader());
1141: $result.=&renderpage($request,$file,['no_output_web'],1).
1142: '<form '.&Apache::edit::form_change_detection().' name="lonhomework" method="post" action="'.
1143: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
1144: &Apache::structuretags::remember_problem_state().'
1145: <div class="LC_edit_problem_header">
1146: <div class="LC_edit_problem_header_title">'.
1147: &mt('Problem Editing').' '.&Apache::loncommon::help_open_topic('Problem_Editor_XML_Index').
1148: '</div><div class="LC_edit_actionbar" id="actionbar">';
1149:
1150: $result.='<input type="hidden" name="problemmode" value="saveedit" />'.
1151: &Apache::structuretags::problem_edit_buttons('editxml');
1152: $result.='<div>';
1153:
1154: $result .= '<ol class="LC_primary_menu" style="display:inline-block;font-size:90%;vertical-align:middle;">';
1155:
1156: my $nocodemirror = &Apache::loncommon::nocodemirror();
1157: unless ($nocodemirror) {
1158: # dropdown menus
1159: $result .= Apache::lonmenu::create_submenu("#", "",
1160: &mt("Problem Templates"), template_dropdown_datastructure());
1161:
1162: $result .= Apache::lonmenu::create_submenu("#", "",
1163: &mt("Response Types"), responseblock_dropdown_datastructure());
1164:
1165: $result .= Apache::lonmenu::create_submenu("#", "",
1166: &mt("Conditional Blocks"), conditional_scripting_datastructure());
1167:
1168: $result .= Apache::lonmenu::create_submenu("#", "",
1169: &mt("Miscellaneous"), misc_datastructure());
1170: }
1171:
1172: $result .= Apache::lonmenu::create_submenu("#", "",
1173: &mt("Help") . ' <img src="/adm/help/help.png" alt="' . &mt("Help") .
1174: '" style="vertical-align:text-bottom; height: auto; margin:0; "/>',
1175: helpmenu_datastructure(),"");
1176:
1177: $result.="</ol></div>";
1178:
1179: $result .= '</div></div>' .
1180: &Apache::lonxml::message_location() .
1181: &Apache::loncommon::xmleditor_js() .
1182: '<textarea ' . &Apache::edit::element_change_detection() .
1183: ' rows="'.$rows.'" cols="'.$cols.'" style="width:100%" ' .
1184: ' name="editxmltext" id="LC_editxmltext">' .
1185: &HTML::Entities::encode($problem,'<>&"') .
1186: '</textarea> <div id="LC_aftertextarea"> </div> </form>';
1187:
1188: my $resource = $env{'request.ambiguous'};
1189: unless ($nocodemirror) {
1190: $result .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined-xml.css">
1191: <script src="/adm/codemirror/codemirror-compressed-xml.js"></script>
1192: <script>
1193: CodeMirror.defineMode("mixedmode", function(config) {
1194: return CodeMirror.multiplexingMode(
1195: CodeMirror.getMode(config, "xml"),
1196: {
1197: open: "\<script type=\"loncapa/perl\"\>", close: "\</script\>",
1198: mode: CodeMirror.getMode(config, "perl"),
1199: delimStyle: "tag",
1200: }
1201: );
1202: });
1203: var cm = CodeMirror.fromTextArea(document.getElementById("LC_editxmltext"),
1204: {
1205: mode: "mixedmode",
1206: lineWrapping: true,
1207: lineNumbers: true,
1208: tabSize: 4,
1209: indentUnit: 4,
1210:
1211: autoCloseTags: true,
1212: autoCloseBrackets: true,
1213: height: "auto",
1214: styleActiveLine: true,
1215:
1216: extraKeys: {
1217: "Tab": "indentMore",
1218: "Shift-Tab": "indentLess",
1219: }
1220: });
1221: restoreScrollPosition("'.$resource.'");
1222: </script>';
1223: }
1224:
1225: $result .= &Apache::loncommon::end_page();
1226: &Apache::lonxml::add_messages(\$result);
1227: $request->print($result);
1228: }
1229: return '';
1230: }
1231:
1232: #
1233: # Render the page in whatever target desired.
1234: #
1235: sub renderpage {
1236: my ($request,$file,$targets,$return_string,$donebuttonmsg,$viewasuser,$symb) = @_;
1237:
1238: my @targets = @{$targets || [&get_target()]};
1239: &Apache::lonhomework::showhashsubset(\%env,'form.');
1240: &Apache::lonxml::debug("Running targets ".join(':',@targets));
1241:
1242: my $overall_result;
1243: foreach my $target (@targets) {
1244: # FIXME need to do something intelligent when a problem goes
1245: # from viewable to not viewable due to map conditions
1246: #&setuppermissions();
1247: #if ( $Apache::lonhomework::browse ne '2'
1248: # && $Apache::lonhomework::browse ne 'F' ) {
1249: # $request->print(" You most likely shouldn't see me.");
1250: #}
1251: #my $t0 = [&gettimeofday()];
1252: my $output=1;
1253: if ($target eq 'no_output_web') {
1254: $target = 'web'; $output=0;
1255: }
1256: my $problem=&Apache::lonnet::getfile($file);
1257: my $result;
1258: if ($problem eq -1) {
1259: $problem='';
1260: my $filename=(split('/',$file))[-1];
1261: my $error =
1262: &mt('Unable to find [_1]',
1263: '<span class="LC_filename">'.$filename.'</span>');
1264: $result.=
1265: &Apache::loncommon::simple_error_page($request,'Not available',
1266: $error,{'no_auto_mt_msg' => 1});
1267: return;
1268: }
1269:
1270: my %mystyle;
1271: if ($target eq 'analyze') { %Apache::lonhomework::analyze=(); }
1272: if ($target eq 'answer') { &showhash(%Apache::lonhomework::history); }
1273: if ($target eq 'web') {&Apache::lonhomework::showhashsubset(\%env,'^form');}
1274:
1275: if (($target eq 'web') && ($viewasuser ne '') && ($symb ne '')) {
1276: $env{'request.user_in_effect'} = $viewasuser;
1277: }
1278:
1279: &Apache::lonxml::debug("Should be parsing now");
1280: $result .= &Apache::lonxml::xmlparse($request, $target, $problem,
1281: &setup_vars($target),%mystyle);
1282: &finished_parsing();
1283: if (!$output) { $result = ''; }
1284: #$request->print("Result follows:");
1285: if ($target eq 'modified') {
1286: &handle_save_or_undo($request,\$problem,\$result);
1287: } else {
1288: if ($target eq 'analyze') {
1289: $result=&Apache::lonnet::hashref2str(\%Apache::lonhomework::analyze);
1290: undef(%Apache::lonhomework::analyze);
1291: } elsif ($target eq 'web') {
1292: if ($donebuttonmsg) {
1293: $result =~ s{</body>}{};
1294: $result.= &Apache::loncommon::confirmwrapper(&Apache::lonhtmlcommon::confirm_success($donebuttonmsg,1))."\n</body>";
1295: }
1296: }
1297: #my $td=&tv_interval($t0);
1298: #if ( $Apache::lonxml::debug) {
1299: #$result =~ s:</body>::;
1300: #$result.="<br />Spent $td seconds processing target $target\n</body>";
1301: #}
1302: # $request->print($result);
1303: $overall_result.=$result;
1304: if (($target eq 'web') && ($viewasuser ne '') && ($symb ne '')) {
1305: my ($vuname,$vudom) = split(/:/,$viewasuser);
1306: $overall_result .= &Apache::grades::view_as_user($symb,$vuname,$vudom).
1307: '</body></html>';
1308: }
1309: # $request->rflush();
1310: }
1311: if (($target eq 'web') && ($viewasuser ne '') && ($symb ne '')) {
1312: undef($env{'request.user_in_effect'});
1313: }
1314: #$request->print(":Result ends");
1315: #my $td=&tv_interval($t0);
1316: }
1317: if (!$return_string) {
1318: &Apache::lonxml::add_messages(\$overall_result);
1319: $request->print($overall_result);
1320: $request->rflush();
1321: } else {
1322: return $overall_result;
1323: }
1324: }
1325:
1326: sub finished_parsing {
1327: undef($Apache::lonhomework::parsing_a_problem);
1328: undef($Apache::lonhomework::parsing_a_task);
1329: }
1330:
1331: # function extracted from get_template_html
1332: # returns "key" -> list
1333: # key: path of template
1334: # value 1: title
1335: # value 2: category
1336: # value 3: name of help topic ???
1337: sub get_template_list {
1338: my ($extension) = @_;
1339:
1340: my @files = glob($Apache::lonnet::perlvar{'lonIncludes'}.
1341: '/templates/*.'.$extension);
1342: @files = map {[$_,&mt(&Apache::lonnet::metadata($_, 'title')),
1343: (&Apache::lonnet::metadata($_, 'category')?&mt(&Apache::lonnet::metadata($_, 'category')):&mt('Miscellaneous')),
1344: &mt(&Apache::lonnet::metadata($_, 'help'))]} (@files);
1345: @files = sort {$a->[2].$a->[1] cmp $b->[2].$b->[1]} (@files);
1346: return @files;
1347: }
1348:
1349: sub get_template_html {
1350: my ($extension) = @_;
1351: my $result;
1352: my @allnames;
1353: &Apache::lonxml::debug("Looking for :$extension:");
1354: my $glob_extension = $extension;
1355: if ($extension eq 'survey' || $extension eq 'exam') {
1356: $glob_extension = 'problem';
1357: }
1358: my @files = &get_template_list($extension);
1359: my ($midpoint,$seconddiv,$numfiles);
1360: my @noexamplelink = ('blank.problem','blank.library','script.library');
1361: $numfiles = 0;
1362: foreach my $file (@files) {
1363: next if ($file->[1] !~ /\S/);
1364: $numfiles ++;
1365: }
1366: if ($numfiles > 0) {
1367: $result = '<div class="LC_left_float">';
1368: $midpoint = int($numfiles/2);
1369: if ($numfiles%2) {
1370: $midpoint ++;
1371: }
1372: }
1373: my $count = 0;
1374: my $currentcategory='';
1375: my $first = 1;
1376: my $londocroot = $Apache::lonnet::perlvar{'lonDocRoot'};
1377: foreach my $file (@files) {
1378: next if ($file->[1] !~ /\S/);
1379: if ($file->[2] ne $currentcategory) {
1380: $currentcategory=$file->[2];
1381: if ((!$seconddiv) && ($count >= $midpoint)) {
1382: $result .= '</div></div>'."\n".'<div class="LC_left_float">'."\n";
1383: $seconddiv = 1;
1384: } elsif (!$first) {
1385: $result.='</div>'."\n";
1386: } else {
1387: $first = 0;
1388: }
1389: $result.= '<div class="LC_Box">'."\n"
1390: .'<h3 class="LC_hcell">'.$currentcategory.'</h3>'."\n";
1391: $count++;
1392: }
1393: $result .=
1394: '<label><input type="radio" name="template" value="'.$file->[0].'" />'.
1395: $file->[1].'</label>';
1396: if ($file->[3]) {
1397: $result.=&Apache::loncommon::help_open_topic($file->[3]);
1398: }
1399: # Provide example link
1400: my $filename=$file->[0];
1401: $filename=~s{^\Q$londocroot\E}{};
1402: if (!(grep($filename =~ /\Q$_\E$/,@noexamplelink))) {
1403: $result .= ' <span class="LC_fontsize_small">'
1404: .&Apache::loncommon::modal_link(
1405: $filename.'?inhibitmenu=yes',&mt('Example'),600,420,'sample')
1406: .'</span>';
1407: }
1408: $result .= '<br />'."\n";
1409: $count ++;
1410: }
1411: if ($numfiles > 0) {
1412: $result .= '</div></div>'."\n".'<div class="LC_clear_float_footer"></div>'."\n";
1413: }
1414: return $result;
1415: }
1416:
1417: sub newproblem {
1418: my ($request) = @_;
1419:
1420: if ($env{'form.mode'} eq 'blank'){
1421: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1422: my $templatefilename =
1423: $request->dir_config('lonIncludes').'/templates/blank.problem';
1424: &File::Copy::copy($templatefilename,$dest);
1425: &renderpage($request,$dest);
1426: return;
1427: }
1428: my $errormsg;
1429: if ($env{'form.template'}) {
1430: my $file;
1431: my ($extension) = ($env{'form.template'} =~ /\.(\w+)$/);
1432: if ($extension) {
1433: my @files = &get_template_list($extension);
1434: foreach my $poss (@files) {
1435: if (ref($poss) eq 'ARRAY') {
1436: if ($env{'form.template'} eq $poss->[0]) {
1437: $file = $env{'form.template'};
1438: last;
1439: }
1440: }
1441: }
1442: if ($file) {
1443: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1444: &File::Copy::copy($file,$dest);
1445: &renderpage($request,$dest);
1446: return;
1447: } else {
1448: $errormsg = '<p class="LC_error">'.&mt('Invalid template file.').'</p>';
1449: }
1450: } else {
1451: $errormsg = '<p class="LC_error">'.&mt('Invalid template file; template needs to be a .problem, .library, or .task file.').'</p>';
1452: }
1453: }
1454:
1455: my ($extension) = ($request->uri =~ m/\.(\w+)$/);
1456: &Apache::lonxml::debug("Looking for :$extension:");
1457: my $templatelist=&get_template_html($extension);
1458: if ($env{'form.newfile'} && !$templatelist) {
1459: # no templates found
1460: my $templatefilename =
1461: $request->dir_config('lonIncludes').'/templates/blank.'.$extension;
1462: &Apache::lonxml::debug("$templatefilename");
1463: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1464: &File::Copy::copy($templatefilename,$dest);
1465: &renderpage($request,$dest);
1466: } else {
1467: my $url=&HTML::Entities::encode($request->uri,'<>&"');
1468: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1469: my $instructions;
1470: my $brcrum = [{'href' => &Apache::loncommon::authorspace($request->uri),
1471: 'text' => 'Authoring Space'},
1472: {'href' => '',
1473: 'text' => "Create New $extension"}];
1474: my $start_page =
1475: &Apache::loncommon::start_page("Create New $extension",
1476: undef,
1477: {'bread_crumbs' => $brcrum,});
1478: $request->print(
1479: $start_page
1480: .&Apache::loncommon::head_subbox(
1481: &Apache::loncommon::CSTR_pageheader())
1482: .'<h1>'.&mt("Creating a new $extension resource.")."</h1>
1483: $errormsg
1484: ".&mt("The requested file [_1] currently does not exist.",
1485: '<span class="LC_filename">'.$url.'</span>').'
1486: <p class="LC_info">
1487: '.&mt("To create a new $extension, select a template from the".
1488: " list below. Then click on the \"Create $extension\" button.").'
1489: </p><div><form action="'.$url.'" method="post">');
1490:
1491: if (defined($templatelist)) {
1492: $request->print($templatelist);
1493: }
1494: $request->print('<br /><input type="submit" name="newfile" value="'.
1495: &mt("Create $extension").'" />');
1496: $request->print('</form></div>'.&Apache::loncommon::end_page());
1497: }
1498: return;
1499: }
1500:
1501: sub update_construct_style {
1502: if ($env{'request.state'} eq "construct"
1503: && $env{'form.problemmode'} eq 'view'
1504: && defined($env{'form.submitted'})
1505: && !defined($env{'form.resetdata'})
1506: && !defined($env{'form.newrandomization'})) {
1507: if ((!$env{'form.style_file'} && $env{'construct.style'})
1508: ||$env{'form.clear_style_file'}) {
1509: &Apache::lonnet::delenv('construct.style');
1510: } elsif ($env{'form.style_file'}
1511: && $env{'construct.style'} ne $env{'form.style_file'}) {
1512: &Apache::lonnet::appenv({'construct.style' =>
1513: $env{'form.style_file'}});
1514: }
1515: }
1516: }
1517:
1518: #
1519: # Sets interval for current user so time left will be zero, either for the entire folder
1520: # containing the current resource, or just the resource, depending on value of first item
1521: # in interval array retrieved from EXT("resource.0.interval");
1522: #
1523: sub zero_timer {
1524: my ($symb) = @_;
1525: my ($hastimeleft,$first_access,$now);
1526: my @interval=&Apache::lonnet::EXT("resource.0.interval",$symb);
1527: if (@interval > 1) {
1528: if ($interval[1] eq 'course') {
1529: return ('fail',&mt('Ending of timed events not supported for intervals set course-wide'));
1530: } else {
1531: my $now = time;
1532: my $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
1533: if ($first_access > 0) {
1534: my ($timelimit,$donesuffix) = split(/_/,$interval[0],2);
1535: if ($donesuffix =~ /^done(?:|\:[^\:]+\:)(.*)$/) {
1536: my ($dummy,$proctor,$secret) = split(/_/,$1);
1537: if (($proctor) && ($secret ne '')) {
1538: my $key = $env{'form.LC_interval_done_proctorpass'};
1539: $key =~ s/^\s+//;
1540: $key =~ s/\s+$//;
1541: if ($env{'form.LC_interval_done_proctorpass'} ne $secret) {
1542: return ('fail',
1543: &mt('Incorrect key entered by proctor'));
1544: }
1545: }
1546: if ($first_access+$timelimit > $now) {
1547: my $done_time = $now - $first_access;
1548: my $snum = 1;
1549: if ($interval[1] eq 'map') {
1550: $snum = 2;
1551: }
1552: my $result =
1553: &Apache::lonparmset::storeparm_by_symb_inner($symb,'0_interval',
1554: $snum,$done_time,
1555: 'date_interval',
1556: $env{'user.name'},
1557: $env{'user.domain'});
1558: if ($result eq '') {
1559: # Record action in "User Notes"
1560: &Apache::lonmsg::store_instructor_comment(
1561: 'Pressed Done button for symb:<br />'.$symb,
1562: $env{'user.name'}, $env{'user.domain'});
1563: return ('ok');
1564: } else {
1565: return ('fail',&mt('Error ending timed event: [_1]',$result));
1566: }
1567: } else {
1568: return ('fail',&mt('Timed event already ended'));
1569: }
1570: } else {
1571: return ('fail',&mt('Timed event can not be ended before the time limit'));
1572: }
1573: } else {
1574: return ('fail',&mt('Timer not yet started for this timed event'));
1575: }
1576: }
1577: } else {
1578: return ('fail',&mt('No timer in use'));
1579: }
1580: return();
1581: }
1582:
1583: sub handler {
1584: #my $t0 = [&gettimeofday()];
1585: my $request=$_[0];
1586: $Apache::lonxml::request=$request;
1587: $Apache::lonxml::debug=$env{'user.debug'};
1588: $env{'request.uri'}=$request->uri;
1589: &setuppermissions();
1590:
1591: my $file=&Apache::lonnet::filelocation("",$request->uri);
1592:
1593: #check if we know where we are
1594: if ($env{'request.course.fn'} && !&Apache::lonnet::symbread('','',1,1)) {
1595: # if we are browsing we might not be able to know where we are
1596: if ($Apache::lonhomework::browse ne 'F' &&
1597: $env{'request.state'} ne "construct") {
1598: #should know where we are, so ask
1599: &unset_permissions();
1600: $request->internal_redirect('/adm/ambiguous');
1601: return OK;
1602: }
1603: }
1604: if (&setupheader($request)) {
1605: &unset_permissions();
1606: return OK;
1607: }
1608:
1609: &Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:$Apache::lonhomework::modifygrades:$Apache::lonhomework::queuegrade");
1610: &Apache::lonxml::debug("Problem Mode ".$env{'form.problemmode'});
1611: my ($symb) = &Apache::lonnet::whichuser();
1612: &Apache::lonxml::debug('symb is '.$symb);
1613: if ($env{'request.state'} eq "construct") {
1614: if ( -e $file ) {
1615: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1616: ['problemmode']);
1617: if (!(defined $env{'form.problemmode'})) {
1618: #first visit to problem in construction space
1619: $env{'form.problemmode'}= 'view';
1620: &renderpage($request,$file);
1621: } elsif (($env{'form.problemmode'} eq 'editxml') ||
1622: ($env{'form.problemmode'} eq 'saveeditxml') ||
1623: ($env{'form.problemmode'} eq 'saveviewxml') ||
1624: ($env{'form.problemmode'} eq 'undoxml')) {
1625: my %editors = &Apache::loncommon::permitted_editors();
1626: if (($editors{'xml'}) || ($env{'form.problemmode'} eq 'saveviewxml') || ($env{'form.problemmode'} eq 'undoxml')) {
1627: &editxmlmode($request,$file);
1628: } else {
1629: &update_construct_style();
1630: &renderpage($request,$file);
1631: }
1632: } elsif ($env{'form.problemmode'} eq 'calcanswers') {
1633: &analyze($request,$file);
1634: } else {
1635: &update_construct_style();
1636: &renderpage($request,$file);
1637: }
1638: } else {
1639: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1640: ['mode']);
1641: # requested file doesn't exist in contruction space
1642: &newproblem($request);
1643: }
1644: } else {
1645: # Set the event timer to zero if the "done button" was clicked. The button is
1646: # part of the doneButton form created in lonmenu.pm
1647: my ($donebuttonresult,$donemsg,$viewasuser);
1648: if ($symb && $env{'form.LC_interval_done'} eq 'true') {
1649: ($donebuttonresult,$donemsg) = &zero_timer($symb);
1650: undef($env{'form.LC_interval_done'});
1651: undef($env{'form.LC_interval_done_proctorpass'});
1652: }
1653: if (($env{'form.LC_viewas'} ne '') && $symb && $env{'request.course.id'} &&
1654: ($Apache::lonhomework::viewgrades || $Apache::lonhomework::modifygrades)) {
1655: if ($env{'form.LC_viewas'} =~ /^($match_username):($match_domain)$/) {
1656: my ($possuname,$possudom) = ($1,$2);
1657: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1658: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1659: my ($canview,$posssec);
1660: if ($env{'request.course.sec'} ne '') {
1661: if ($Apache::lonhomework::modifygradessec eq $env{'request.course.sec'}) {
1662: $canview = 'section';
1663: $posssec = $env{'request.course.sec'};
1664: } elsif ($Apache::lonhomework::viewgradessec eq $env{'request.course.sec'}) {
1665: $canview = 'section';
1666: $posssec = $env{'request.course.sec'};
1667: }
1668: }
1669: my $crstype = &Apache::loncommon::course_type();
1670: if (&Apache::loncourseuser::is_course_user($possudom,$possuname,$cdom,$cnum,
1671: $canview,$crstype,$posssec)) {
1672: $viewasuser = $possuname.':'.$possudom;
1673: }
1674: }
1675: undef($env{'form.LC_viewas'});
1676: }
1677: # just render the page normally outside of construction space
1678: &Apache::lonxml::debug("not construct");
1679: undef(@Apache::lonhomework::ltipassback);
1680: &renderpage($request,$file,undef,undef,$donemsg,$viewasuser,$symb);
1681: if (@Apache::lonhomework::ltipassback) {
1682: unless ($registered_cleanup) {
1683: my $handlers = $request->get_handlers('PerlCleanupHandler');
1684: $request->set_handlers('PerlCleanupHandler' =>
1685: [\&do_ltipassback,@{$handlers}]);
1686: }
1687: }
1688: }
1689: #my $td=&tv_interval($t0);
1690: #&Apache::lonxml::debug("Spent $td seconds processing");
1691: # always turn off debug messages
1692: $Apache::lonxml::debug=0;
1693: &unset_permissions();
1694: return OK;
1695:
1696: }
1697:
1698: sub template_dropdown_datastructure {
1699: # gathering the all templates and their path, title, category and help topic
1700: my @templates = get_template_list('problem');
1701: # template category => title
1702: my %tmplthash = ();
1703: # template title => path
1704: my %tmpltcontent = ();
1705:
1706: foreach my $template (@templates){
1707: # put in hash if the template is not empty
1708: unless ($template->[1] eq ''){
1709: push(@{$tmplthash{$template->[2]}}, $template->[1]);
1710: push(@{$tmpltcontent{$template->[1]}},$template->[0]);
1711: }
1712: }
1713:
1714: my $catList = [];
1715: foreach my $cat (sort keys %tmplthash) {
1716: my $catItems = [];
1717: foreach my $title (sort @{$tmplthash{$cat}}) {
1718: my $path = $tmpltcontent{$title}->[0];
1719: my $code;
1720: open(FH, "<$path");
1721: while(<FH>){
1722: $code.= $_ unless $_ =~ /(<problem>)|(<\/problem>)/;
1723: }
1724: close(FH);
1725:
1726: if ($code ne '') {
1727: my $href = 'javascript:insertText(\'' . &convert_for_js(&HTML::Entities::encode($code,'<>&"')) . '\')';
1728: my $currItem = [$href, $title, undef];
1729: push @{$catItems}, $currItem;
1730: }
1731: }
1732: push @{$catList}, [$catItems, $cat, undef];
1733: }
1734:
1735: return $catList;
1736: }
1737:
1738: sub responseblock_dropdown_datastructure {
1739:
1740: my $mathCat = [
1741: [
1742: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_formularesponse())) . "\')", &mt("Formula Response"), undef],
1743: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_functionplotresponse())) . "\')", &mt("Function Plot Response"), undef],
1744: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_mathresponse())) . "\')", &mt("Math Response"), undef],
1745: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_numericalresponse())) . "\')", &mt("Numerical Response"), undef]
1746: ],
1747: &mt("Math"),
1748: undef
1749: ];
1750:
1751: my $miscCat = [
1752: [
1753: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_imageresponse())) . "\')", &mt("Click on Image"), undef],
1754: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_customresponse())) . "\')", &mt("Custom Response"), undef],
1755: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_externalresponse())) . "\')", &mt("External Response"), undef],
1756: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_matchresponse())) . "\')", &mt("Match Two Lists"), undef],
1757: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_radiobuttonresponse())) . "\')", &mt("One out of N statements"), undef],
1758: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_optionresponse())) . "\')", &mt("Select from Options"), undef],
1759: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_rankresponse())) . "\')", &mt("Rank Values"), undef]
1760: ],
1761: &mt("Miscellaneous"),
1762: undef
1763: ];
1764:
1765: my $chemCat = [
1766: [
1767: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_reactionresponse())) . "\')", &mt("Chemical Reaction"), undef],
1768: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_organicresponse())) . "\')", &mt("Organic Chemical Structure"), undef]
1769: ],
1770: &mt("Chemistry"),
1771: undef
1772: ];
1773:
1774: my $textCat = [
1775: [
1776: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_stringresponse())) . "\')", &mt("String Response"), undef],
1777: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_essayresponse())) . "\')", &mt("Essay"), undef]
1778: ],
1779: &mt("Text"),
1780: undef
1781: ];
1782:
1783: return [$mathCat, $miscCat, $chemCat, $textCat];
1784: }
1785:
1786:
1787: sub conditional_scripting_datastructure {
1788: # TODO: corresponding routines should be used for the javascript:insertText parts
1789: # instead of the placeholder routine default_xml_tag with the tags
1790: # e.g. &default_xml_tag("postanswerdate") should be replaced with a routine which
1791: # returns the corresponding content for this case
1792:
1793: #TODO translated is currently temporarily here, another solution should be found where the
1794: # needed string can be retrieved
1795:
1796: my $translatedTag = '
1797: <translated>
1798: <lang which="en"></lang>
1799: <lang which="default"></lang>
1800: </translated>';
1801: return [
1802: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode($translatedTag)) . "\')", &mt("Translated Block"), undef],
1803: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("block"))) . "\')", &mt("Conditional Block"), undef],
1804: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("postanswerdate"))) . "\')", &mt("After Answer Date Block"), undef],
1805: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("preduedate"))) . "\')", &mt("Before Due Date Block"), undef],
1806: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("solved"))) . "\')", &mt("Block For After Solved"), undef],
1807: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("notsolved"))) . "\')", &mt("Block For When Not Solved"), undef]
1808: ];
1809: }
1810:
1811: sub misc_datastructure {
1812: return [
1813: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_img())) . "\')", &mt("Image"), undef],
1814: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::lonplot::insert_gnuplot())) . "\')", &mt("GNU Plot"), undef],
1815: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_organicstructure())) . "\')", &mt("Organic Structure"), undef],
1816: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_script())) . "\')", &mt("Script Block"), undef],
1817: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("allow"))) . "\')", &mt("File Dependencies"), undef],
1818: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("import"))) . "\')", &mt("Import a File"), undef],
1819: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::londefdef::insert_meta())) . "\')", &mt("Custom Metadata"), undef],
1820: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("part"))) . "\')", &mt("Problem Part"), undef]
1821: ];
1822: }
1823:
1824: # helper routine for the datastructure building subroutines
1825: sub default_xml_tag {
1826: my ($tag) = @_;
1827: return "\n<$tag></$tag>";
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', &mt('Languages'), 800, 600],
1839: ];
1840:
1841: my $help_structure = [];
1842:
1843: foreach my $count (0..(scalar(@{$helpers})-1)) {
1844: my $filename = $helpers->[$count]->[0];
1845: my $title = $helpers->[$count]->[1];
1846: my $width = $helpers->[$count]->[2];
1847: my $height = $helpers->[$count]->[3];
1848: if ($width eq '') {
1849: $width = 500;
1850: }
1851: if ($height eq '') {
1852: $height = 600;
1853: }
1854: my $href = &HTML::Entities::encode("javascript:openMyModal('/adm/help/$filename',$width,$height,'yes');");
1855: push @{$help_structure}, [$href, $title, undef];
1856: }
1857:
1858: return $help_structure;
1859: }
1860:
1861: # we need substitution to not break javascript code
1862: sub convert_for_js {
1863: my $return = shift;
1864: $return =~ s|script|ESCAPEDSCRIPT|g;
1865: $return =~ s|\\|\\\\|g;
1866: $return =~ s|\n|\\r\\n|g;
1867: $return =~ s|'|\\'|g;
1868: $return =~ s|'|\\'|g;
1869: return $return;
1870: }
1871:
1872: sub do_ltipassback {
1873: if (@Apache::lonhomework::ltipassback) {
1874: foreach my $item (@Apache::lonhomework::ltipassback) {
1875: if (ref($item) eq 'HASH') {
1876: if ((ref($item->{'lti'}) eq 'HASH') && ($item->{'cid'} =~ /^($match_domain)_($match_courseid)$/)) {
1877: my ($cdom,$cnum) = ($1,$2);
1878: my $msgformat = $item->{'lti'}->{'passbackformat'};
1879: my $sigmethod = 'HMAC-SHA1';
1880: my $ltinum = $item->{'ltinum'};
1881: my $id = $item->{'pbid'};
1882: my $url = $item->{'pburl'};
1883: my $type = $item->{'pbtype'};
1884: my $scope = $item->{'scope'};
1885: my $map = $item->{'pbmap'};
1886: my $symb = $item->{'pbsymb'};
1887: my $uname = $item->{'uname'};
1888: my $udom = $item->{'udom'};
1889: my $keynum = $item->{'lti'}->{'cipher'};
1890: my $crsdef = $item->{'crsdef'};
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') || ($scope eq 'nonrec')) {
1897: ($total,$possible) = &get_lti_score($uname,$udom,$map,$scope);
1898: } elsif ($scope eq 'course') {
1899: ($total,$possible) = &get_lti_score($uname,$udom);
1900: }
1901: if (($id ne '') && ($url ne '') && ($possible)) {
1902: &LONCAPA::ltiutils::send_grade($cdom,$cnum,$crsdef,$type,$ltinum,$keynum,$id,$url,$scoretype,$sigmethod,$msgformat,$total,$possible);
1903: }
1904: }
1905: }
1906: }
1907: undef(@Apache::lonhomework::ltipassback);
1908: }
1909: }
1910:
1911: sub get_lti_score {
1912: my ($uname,$udom,$mapurl,$scope) = @_;
1913: my $navmap = Apache::lonnavmaps::navmap->new($uname,$udom);
1914: if (ref($navmap)) {
1915: my $iterator;
1916: if ($mapurl ne '') {
1917: my $map = $navmap->getResourceByUrl($mapurl);
1918: my $firstres = $map->map_start();
1919: my $finishres = $map->map_finish();
1920: my $recursive = 1;
1921: if ($scope eq 'nonrec') {
1922: $recursive = 0;
1923: }
1924: $iterator = $navmap->getIterator($firstres,$finishres,undef,$recursive);
1925: } else {
1926: $iterator = $navmap->getIterator(undef,undef,undef,1);
1927: }
1928: if (ref($iterator)) {
1929: my $depth = 1;
1930: my $total = 0;
1931: my $possible = 0;
1932: $iterator->next(); # ignore first BEGIN_MAP
1933: my $curRes = $iterator->next();
1934: while ( $depth > 0 ) {
1935: if ($curRes == $iterator->BEGIN_MAP()) {$depth++;}
1936: if ($curRes == $iterator->END_MAP()) { $depth--; }
1937: if (ref($curRes) && $curRes->is_gradable() && !$curRes->randomout) {
1938: my $parts = $curRes->parts();
1939: foreach my $part (@{$parts}) {
1940: next if ($curRes->solved($part) eq 'excused');
1941: $total += $curRes->weight($part) * $curRes->awarded($part);
1942: $possible += $curRes->weight($part);
1943: }
1944: }
1945: $curRes = $iterator->next();
1946: }
1947: if ($total > $possible) {
1948: $total = $possible;
1949: }
1950: return ($total,$possible);
1951: }
1952: }
1953: return;
1954: }
1955:
1956: 1;
1957: __END__
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