1: # The LearningOnline Network with CAPA
2: # The LON-CAPA Homework handler
3: #
4: # $Id: lonhomework.pm,v 1.383 2024/02/21 19:50:21 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::loncourseuser();
54: use Apache::grades();
55: use Apache::Constants qw(:common);
56: use Apache::loncommon();
57: use Apache::lonparmset();
58: use Apache::lonnavmaps();
59: use Apache::lonlocal;
60: use LONCAPA qw(:DEFAULT :match);
61: use LONCAPA::ltiutils();
62: use Time::HiRes qw( gettimeofday tv_interval );
63: use HTML::Entities();
64: use File::Copy();
65:
66: # FIXME - improve commenting
67:
68: my $registered_cleanup;
69:
70: BEGIN {
71: &Apache::lonxml::register_insert();
72: }
73:
74:
75: =pod
76:
77: =item set_bubble_lines()
78:
79: Called at analysis time to set the bubble lines
80: hash for the problem.. This should be called in the
81: end_problemtype tag in analysis mode.
82:
83: We fetch the hash of part id counters from lonxml
84: and push them into analyze:{part_id.bubble_lines}.
85:
86: =cut
87:
88: sub set_bubble_lines {
89: my %bubble_counters = &Apache::lonxml::get_bubble_line_hash();
90:
91: foreach my $key (keys(%bubble_counters)) {
92: $Apache::lonhomework::analyze{"$key.bubble_lines"} =
93: $bubble_counters{"$key"};
94: }
95: }
96:
97: #
98: # Decides what targets to render for.
99: # Implicit inputs:
100: # Various session environment variables:
101: # request.state - published - is a /res/ resource
102: # uploaded - is a /uploaded/ resource
103: # contruct - is a /priv/ resource
104: # form.grade_target - a form parameter requesting a specific target
105: sub get_target {
106: &Apache::lonxml::debug("request.state = $env{'request.state'}");
107: if( defined($env{'form.grade_target'})) {
108: &Apache::lonxml::debug("form.grade_target= $env{'form.grade_target'}");
109: } else {
110: &Apache::lonxml::debug("form.grade_target <undefined>");
111: }
112: if (($env{'request.state'} eq "published") ||
113: ($env{'request.state'} eq "uploaded")) {
114: if ( defined($env{'form.grade_target'} )
115: && ($env{'form.grade_target'} eq 'tex')) {
116: return ($env{'form.grade_target'});
117: } elsif ( defined($env{'form.grade_target'} )
118: && ($Apache::lonhomework::viewgrades eq 'F' )) {
119: return ($env{'form.grade_target'});
120: } elsif ( $env{'form.grade_target'} eq 'webgrade'
121: && ($Apache::lonhomework::queuegrade eq 'F' )) {
122: return ($env{'form.grade_target'});
123: } elsif ($env{'form.grade_target'} eq 'answer') {
124: if ($env{'form.answer_output_mode'} eq 'tex') {
125: return ($env{'form.grade_target'});
126: }
127: }
128: if ($env{'form.webgrade'} &&
129: ($Apache::lonhomework::modifygrades eq 'F'
130: || $Apache::lonhomework::queuegrade eq 'F' )) {
131: return ('grade','webgrade');
132: }
133: if ( defined($env{'form.submitted'}) &&
134: ( !defined($env{'form.newrandomization'}))) {
135: return ('grade', 'web');
136: } else {
137: return ('web');
138: }
139: } elsif ($env{'request.state'} eq "construct") {
140: #
141: # We are in construction space, editing and testing problems
142: #
143: if ( defined($env{'form.grade_target'}) ) {
144: return ($env{'form.grade_target'});
145: }
146: if ( defined($env{'form.preview'})) {
147: if ( defined($env{'form.submitted'})) {
148: #
149: # We are doing a problem preview
150: #
151: return ('grade', 'web');
152: } else {
153: return ('web');
154: }
155: } else {
156: if ($env{'form.problemstate'} eq 'WEB_GRADE') {
157: return ('grade','webgrade','answer');
158: } elsif ($env{'form.problemmode'} eq 'view') {
159: return ('grade','web','answer');
160: } elsif ($env{'form.problemmode'} eq 'saveview') {
161: return ('modified','web','answer');
162: } elsif ($env{'form.problemmode'} eq 'discard') {
163: return ('web','answer');
164: } elsif (($env{'form.problemmode'} eq 'saveedit') ||
165: ($env{'form.problemmode'} eq 'undo')) {
166: my %editors = &Apache::loncommon::permitted_editors();
167: if ($editors{'edit'}) {
168: return ('modified','no_output_web','edit');
169: } else {
170: return ('web');
171: }
172: } elsif ($env{'form.problemmode'} eq 'edit') {
173: my %editors = &Apache::loncommon::permitted_editors();
174: if ($editors{'edit'}) {
175: return ('no_output_web','edit');
176: } else {
177: return ('web');
178: }
179: } else {
180: return ('web');
181: }
182: }
183: #
184: # End of Authoring Space
185: #
186: }
187: #
188: # Huh? We are nowhere, so do nothing.
189: #
190: return ();
191: }
192:
193: sub setup_vars {
194: my ($target) = @_;
195: return ';'
196: # return ';$external::target='.$target.';';
197: }
198:
199: sub proctor_checked_in {
200: my ($slot_name,$slot,$type)=@_;
201: my @possible_proctors=split(",",$slot->{'proctor'});
202:
203: return 1 if (!@possible_proctors);
204:
205: my $key;
206: if ($type eq 'Task') {
207: my $version=$Apache::lonhomework::history{'resource.0.version'};
208: $key ="resource.$version.0.checkedin";
209: } elsif (($type eq 'problem') || ($type eq 'tool')) {
210: $key ='resource.0.checkedin';
211: }
212: # backward compatability, used to be username@domain,
213: # now is username:domain
214: my $who = $Apache::lonhomework::history{$key};
215: if ($who !~ /:/) {
216: $who =~ tr/@/:/;
217: }
218: foreach my $possible (@possible_proctors) {
219: if ($who eq $possible
220: && $Apache::lonhomework::history{$key.'.slot'} eq $slot_name) {
221: return 1;
222: }
223: }
224: return 0;
225: }
226:
227: sub check_slot_access {
228: my ($id,$type,$symb,$partlist)=@_;
229:
230: # does it pass normal muster
231: my ($status,$datemsg)=&check_access($id,$symb);
232:
233: my $useslots = &Apache::lonnet::EXT("resource.0.useslots",$symb);
234: if ($useslots ne 'resource' && $useslots ne 'map'
235: && $useslots ne 'map_map') {
236: return ($status,$datemsg);
237: }
238:
239: my $checkin = 'resource.0.checkedin';
240: my $version;
241: if ($type eq 'Task') {
242: $version=$Apache::lonhomework::history{'resource.version'};
243: $checkin = "resource.$version.0.checkedin";
244: }
245: my $checkedin = $Apache::lonhomework::history{$checkin};
246: my ($returned_slot,$slot_name,$checkinslot,$ipused,$blockip,$now,$ip,
247: $consumed_uniq);
248: $now = time;
249: $ip=$ENV{'REMOTE_ADDR'} || $env{'request.host'};
250:
251: if ($checkedin) {
252: $checkinslot = $Apache::lonhomework::history{"$checkin.slot"};
253: my %slot=&Apache::lonnet::get_slot($checkinslot);
254: $consumed_uniq = $slot{'uniqueperiod'};
255: if ($slot{'iptied'}) {
256: $ipused = $Apache::lonhomework::history{"$checkin.ip"};
257: unless (($ip ne '') &&
258: (($ipused eq $ip) || ($ENV{'REMOTE_ADDR'} eq '127.0.0.1'))) {
259: $blockip = $slot{'iptied'};
260: $slot_name = $checkinslot;
261: $returned_slot = \%slot;
262: }
263: }
264: }
265:
266: if ($status eq 'SHOW_ANSWER') {
267: if ($blockip eq 'answer') {
268: return ('NEED_DIFFERENT_IP','',$slot_name,$returned_slot,$ipused);
269: } else {
270: return ($status,$datemsg);
271: }
272: }
273:
274: if ($status eq 'CLOSED' ||
275: $status eq 'INVALID_ACCESS' ||
276: $status eq 'UNAVAILABLE') {
277: return ($status,$datemsg);
278: }
279: if ($env{'request.state'} eq "construct") {
280: return ($status,$datemsg);
281: }
282:
283: if ($type eq 'Task') {
284: if ($checkedin &&
285: $Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass') {
286: if ($blockip eq 'answer') {
287: return ('NEED_DIFFERENT_IP','',$slot_name,$returned_slot,$ipused);
288: } else {
289: return ('SHOW_ANSWER');
290: }
291: }
292: } elsif (($type eq 'problem') &&
293: ($Apache::lonhomework::browse eq 'F') &&
294: ($ENV{'REMOTE_ADDR'} eq '127.0.0.1') &&
295: ($env{'form.grade_courseid'} eq $env{'request.course.id'}) &&
296: (&Apache::lonnet::allowed('mgr',$env{'request.course.id'}))) {
297: return ($status,$datemsg);
298: }
299:
300: my $availablestudent = &Apache::lonnet::EXT("resource.0.availablestudent",$symb);
301: my $available = &Apache::lonnet::EXT("resource.0.available",$symb);
302: my @slots= (split(':',$availablestudent),split(':',$available));
303:
304: # if (!@slots) {
305: # return ($status,$datemsg);
306: # }
307: undef($returned_slot);
308: undef($slot_name);
309: my $slotstatus='NOT_IN_A_SLOT';
310: my $num_usable_slots = 0;
311: if (!$symb) {
312: ($symb) = &Apache::lonnet::whichuser();
313: }
314: foreach my $slot (@slots) {
315: $slot =~ s/(^\s*|\s*$)//g;
316: &Apache::lonxml::debug("getting $slot");
317: my %slot=&Apache::lonnet::get_slot($slot);
318: &Apache::lonhomework::showhash(%slot);
319: next if ($slot{'endtime'} < $now);
320: $num_usable_slots ++;
321: if ($slot{'starttime'} < $now &&
322: $slot{'endtime'} > $now &&
323: &Apache::loncommon::check_ip_acc($slot{'ip'})) {
324: if ($slot{'iptied'}) {
325: if ($env{'request.course.id'}) {
326: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
327: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
328: if ($slot eq $checkinslot) {
329: if ($ip eq $ipused) {
330: &Apache::lonxml::debug("$slot is good");
331: $slotstatus ='NEEDS_CHECKIN';
332: } else {
333: $slotstatus = 'NEED_DIFFERENT_IP';
334: $slot_name = $slot;
335: $returned_slot = \%slot;
336: last;
337: }
338: } elsif ($ip) {
339: my $uniqkey = "$slot\0$symb\0$ip";
340: my %used_ip = &Apache::lonnet::get('slot_uniqueips',[$uniqkey],$cdom,$cnum);
341: if ($used_ip{$uniqkey}) {
342: $slotstatus = 'NEED_DIFFERENT_IP';
343: } else {
344: &Apache::lonxml::debug("$slot is good");
345: $slotstatus ='NEEDS_CHECKIN';
346: }
347: }
348: }
349: } else {
350: &Apache::lonxml::debug("$slot is good");
351: $slotstatus='NEEDS_CHECKIN';
352: }
353: if ($slotstatus eq 'NEEDS_CHECKIN') {
354: $returned_slot=\%slot;
355: $slot_name=$slot;
356: last;
357: }
358: }
359: }
360: if ($slotstatus eq 'NEEDS_CHECKIN' &&
361: &proctor_checked_in($slot_name,$returned_slot,$type)) {
362: &Apache::lonxml::debug("proctor checked in");
363: $slotstatus=$status;
364: }
365:
366: my ($is_correct,$got_grade);
367: if ($type eq 'Task') {
368: my $version=$Apache::lonhomework::history{'resource.0.version'};
369: $got_grade =
370: ($Apache::lonhomework::history{"resource.$version.0.status"}
371: =~ /^(?:pass|fail)$/);
372: $is_correct =
373: ($Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass'
374: || $Apache::lonhomework::history{"resource.0.solved"} =~ /^correct_/ );
375: } elsif (($type eq 'problem') || ($type eq 'tool')) {
376: if ((ref($partlist) eq 'ARRAY') && (@{$partlist} > 0)) {
377: my ($numcorrect,$numgraded) = (0,0);
378: foreach my $part (@{$partlist}) {
379: my $currtries = $Apache::lonhomework::history{"resource.$part.tries"};
380: my $maxtries = &Apache::lonnet::EXT("resource.$part.maxtries",$symb);
381: my $probstatus = &Apache::structuretags::get_problem_status($part);
382: my $earlyout;
383: unless (($probstatus eq 'no') ||
384: ($probstatus eq 'no_feedback_ever')) {
385: if ($Apache::lonhomework::history{"resource.$part.solved"} =~/^correct_/) {
386: $numcorrect ++;
387: } else {
388: $earlyout = 1;
389: }
390: }
391: if ($currtries == $maxtries) {
392: $earlyout = 1;
393: } else {
394: $numgraded ++;
395: }
396: last if ($earlyout);
397: }
398: my $numparts = scalar(@{$partlist});
399: if ($numparts == $numcorrect) {
400: $is_correct = 1;
401: }
402: if ($numparts == $numgraded) {
403: $got_grade = 1;
404: }
405: } else {
406: my $currtries = $Apache::lonhomework::history{"resource.0.tries"};
407: my $maxtries = &Apache::lonnet::EXT("resource.0.maxtries",$symb);
408: my $probstatus = &Apache::structuretags::get_problem_status('0');
409: unless (($probstatus eq 'no') ||
410: ($probstatus eq 'no_feedback_ever')) {
411: $is_correct =
412: ($Apache::lonhomework::history{"resource.0.solved"} =~/^correct_/);
413: }
414: unless (($currtries == $maxtries) || ($is_correct)) {
415: $got_grade = 1;
416: }
417: }
418: }
419:
420: &Apache::lonxml::debug(" slot is $slotstatus checkedin ($checkedin) got_grade ($got_grade) is_correct ($is_correct)");
421:
422: # no slot is currently open, and has been checked in for this version
423: # but hasn't got a grade, therefore must be awaiting a grade
424: if (!defined($slot_name)
425: && $checkedin
426: && !$got_grade) {
427: return ('WAITING_FOR_GRADE');
428: }
429:
430: # Previously used slot is no longer open, and has been checked in for this version.
431: # However, the problem is not closed, and potentially, another slot might be
432: # used to gain access to it to work on it, until the due date is reached, and the
433: # problem then becomes CLOSED. Therefore return the slotstatus -
434: # (which will be one of: NOT_IN_A_SLOT, RESERVABLE, RESERVABLE_LATER, or NOTRESERVABLE).
435:
436: if (!defined($slot_name) && (($type eq 'problem') || ($type eq 'tool'))) {
437: if ($slotstatus eq 'NOT_IN_A_SLOT') {
438: if (!$num_usable_slots) {
439: ($slotstatus,$datemsg) = &check_reservable_slot($slotstatus,$symb,$now,$checkedin,
440: $consumed_uniq);
441: }
442: }
443: return ($slotstatus,$datemsg);
444: }
445:
446: if ($slotstatus eq 'NOT_IN_A_SLOT'
447: && $checkedin ) {
448:
449: if ($got_grade) {
450: if ($blockip eq 'answer') {
451: return ('NEED_DIFFERENT_IP','',$slot_name,$returned_slot,$ipused);
452: } else {
453: return ('SHOW_ANSWER');
454: }
455: } else {
456: return ('WAITING_FOR_GRADE');
457: }
458:
459: }
460:
461: if (($is_correct) && ($blockip ne 'answer')) {
462: if (($type eq 'problem') || ($type eq 'tool')) {
463: return ($status);
464: }
465: return ('SHOW_ANSWER');
466: }
467:
468: if ( $status eq 'CANNOT_ANSWER' &&
469: ($slotstatus ne 'NEEDS_CHECKIN' && $slotstatus ne 'NOT_IN_A_SLOT' &&
470: $slotstatus ne 'NEED_DIFFERENT_IP') ) {
471: return ($status,$datemsg);
472: }
473: return ($slotstatus,$datemsg,$slot_name,$returned_slot,$ipused);
474: }
475:
476: sub check_reservable_slot {
477: my ($slotstatus,$symb,$now,$checkedin,$consumed_uniq) = @_;
478: my $datemsg;
479: if ($slotstatus eq 'NOT_IN_A_SLOT') {
480: if ($env{'request.course.id'}) {
481: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
482: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
483: unless ($symb) {
484: ($symb)=&Apache::lonnet::whichuser();
485: }
486: $slotstatus = 'NOTRESERVABLE';
487: my ($reservable_now_order,$reservable_now,$reservable_future_order,
488: $reservable_future) =
489: &Apache::loncommon::get_future_slots($cnum,$cdom,$now,$symb);
490: if ((ref($reservable_now_order) eq 'ARRAY') && (ref($reservable_now) eq 'HASH')) {
491: if (@{$reservable_now_order} > 0) {
492: if ((!$checkedin) || (ref($consumed_uniq) ne 'ARRAY')) {
493: $slotstatus = 'RESERVABLE';
494: $datemsg = $reservable_now->{$reservable_now_order->[-1]}{'endreserve'};
495: } else {
496: my ($uniqstart,$uniqend,$useslot);
497: if (ref($consumed_uniq) eq 'ARRAY') {
498: ($uniqstart,$uniqend)=@{$consumed_uniq};
499: }
500: foreach my $slot (reverse(@{$reservable_now_order})) {
501: if ($reservable_now->{$slot}{'uniqueperiod'} =~ /^(\d+)\,(\d+)$/) {
502: my ($new_uniq_start,$new_uniq_end) = ($1,$2);
503: next if (!
504: ($uniqstart < $new_uniq_start && $uniqend < $new_uniq_start) ||
505: ($uniqstart > $new_uniq_end && $uniqend > $new_uniq_end ));
506: }
507: $useslot = $slot;
508: last;
509: }
510: if ($useslot) {
511: $slotstatus = 'RESERVABLE';
512: $datemsg = $reservable_now->{$useslot}{'endreserve'};
513: }
514: }
515: }
516: }
517: unless ($slotstatus eq 'RESERVABLE') {
518: if ((ref($reservable_future_order) eq 'ARRAY') && (ref($reservable_future) eq 'HASH')) {
519: if (@{$reservable_future_order} > 0) {
520: if ((!$checkedin) || (ref($consumed_uniq) ne 'ARRAY')) {
521: $slotstatus = 'RESERVABLE_LATER';
522: $datemsg = $reservable_future->{$reservable_future_order->[0]}{'startreserve'};
523: } else {
524: my ($uniqstart,$uniqend,$useslot);
525: if (ref($consumed_uniq) eq 'ARRAY') {
526: ($uniqstart,$uniqend)=@{$consumed_uniq};
527: }
528: foreach my $slot (@{$reservable_future_order}) {
529: if ($reservable_future->{$slot}{'uniqueperiod'} =~ /^(\d+),(\d+)$/) {
530: my ($new_uniq_start,$new_uniq_end) = ($1,$2);
531: next if (!
532: ($uniqstart < $new_uniq_start && $uniqend < $new_uniq_start) ||
533: ($uniqstart > $new_uniq_end && $uniqend > $new_uniq_end ));
534: }
535: $useslot = $slot;
536: last;
537: }
538: if ($useslot) {
539: $slotstatus = 'RESERVABLE_LATER';
540: $datemsg = $reservable_future->{$useslot}{'startreserve'};
541: }
542: }
543: }
544: }
545: }
546: }
547: }
548: return ($slotstatus,$datemsg);
549: }
550:
551: # JB, 9/24/2002: Any changes in this function may require a change
552: # in lonnavmaps::resource::getDateStatus.
553: sub check_access {
554: my ($id,$symb) = @_;
555: my $date ='';
556: my $status;
557: my $datemsg = '';
558: my $lastdate = '';
559: my $type;
560: my $passed;
561:
562: if ($env{'request.state'} eq "construct") {
563: if ($env{'form.problemstate'}) {
564: if ($env{'form.problemstate'} =~ /^CANNOT_ANSWER/) {
565: if ( ! ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct'
566: && &hide_problem_status())) {
567: return ('CANNOT_ANSWER',
568: &mt('is in this state due to author settings.'));
569: }
570: } else {
571: return ($env{'form.problemstate'},
572: &mt('is in this state due to author settings.'));
573: }
574: }
575: &Apache::lonxml::debug("in construction ignoring dates");
576: $status='CAN_ANSWER';
577: $datemsg=&mt('is in under construction');
578: # return ($status,$datemsg);
579: }
580:
581: &Apache::lonxml::debug("checking for part :$id:");
582: &Apache::lonxml::debug("time:".time);
583:
584: unless ($symb) {
585: ($symb)=&Apache::lonnet::whichuser();
586: }
587: &Apache::lonxml::debug("symb:".$symb);
588: #if ($env{'request.state'} ne "construct" && $symb ne '') {
589: if ($env{'request.state'} ne "construct") {
590: my $idacc = &Apache::lonnet::EXT("resource.$id.acc",$symb);
591: my $allowed=&Apache::loncommon::check_ip_acc($idacc);
592: if (!$allowed && ($Apache::lonhomework::browse ne 'F')) {
593: $status='INVALID_ACCESS';
594: $date=&mt("can not be accessed from your location.");
595: return($status,$date);
596: }
597: if ($env{'form.grade_imsexport'}) {
598: if (($env{'request.course.id'}) &&
599: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
600: return ('SHOW_ANSWER');
601: }
602: }
603: foreach my $temp ("opendate","duedate","answerdate") {
604: $lastdate = $date;
605: if ($temp eq 'duedate') {
606: $date = &due_date($id,$symb);
607: } else {
608: $date = &Apache::lonnet::EXT("resource.$id.$temp",$symb);
609: }
610:
611: my $thistype = &Apache::lonnet::EXT("resource.$id.$temp.type",$symb);
612: if ($thistype =~ /^(con_lost|no_such_host)/ ||
613: $date =~ /^(con_lost|no_such_host)/) {
614: $status='UNAVAILABLE';
615: $date=&mt("may open later.");
616: return($status,$date);
617: }
618: if ($thistype eq 'date_interval') {
619: if ($temp eq 'opendate') {
620: $date=&Apache::lonnet::EXT("resource.$id.duedate",$symb)-$date;
621: }
622: if ($temp eq 'answerdate') {
623: $date=&Apache::lonnet::EXT("resource.$id.duedate",$symb)+$date;
624: }
625: }
626: &Apache::lonxml::debug("found :$date: for :$temp:");
627: if ($date eq '') {
628: $date = &mt("an unknown date"); $passed = 0;
629: } elsif ($date eq 'con_lost') {
630: $date = &mt("an indeterminate date"); $passed = 0;
631: } else {
632: if (time < $date) { $passed = 0; } else { $passed = 1; }
633: $date = &Apache::lonlocal::locallocaltime($date);
634: }
635: if (!$passed) { $type=$temp; last; }
636: }
637: &Apache::lonxml::debug("have :$type:$passed:");
638: if ($passed) {
639: $status='SHOW_ANSWER';
640: $datemsg=$date;
641: } elsif ($type eq 'opendate') {
642: $status='CLOSED';
643: $datemsg = &mt('will open on [_1]',$date);
644: } elsif ($type eq 'duedate') {
645: $status='CAN_ANSWER';
646: $datemsg = &mt('is due at [_1]',$date);
647: } elsif ($type eq 'answerdate') {
648: $status='CLOSED';
649: $datemsg = &mt('was due on [_1], and answers will be available on [_2]',
650: $lastdate,$date);
651: }
652: }
653: if ($status eq 'CAN_ANSWER' ||
654: (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED'))) {
655: #check #tries, and if correct.
656: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
657: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries",$symb);
658: if ( $tries eq '' ) { $tries = '0'; }
659: if ( $maxtries eq '' &&
660: $env{'request.state'} ne 'construct') { $maxtries = '2'; }
661: if ($maxtries && $tries >= $maxtries) { $status = 'CANNOT_ANSWER'; }
662: # if (correct and show prob status) or excused then CANNOT_ANSWER
663: if ( ($Apache::lonhomework::history{"resource.$id.solved"}=~/^correct/)
664: && (&show_problem_status()) ) {
665: if (($Apache::lonhomework::history{"resource.$id.awarded"} >= 1) ||
666: (&Apache::lonnet::EXT("resource.$id.retrypartial",$symb) !~/^1|on|yes$/i)) {
667: $status = 'CANNOT_ANSWER';
668: }
669: } elsif ($Apache::lonhomework::history{"resource.$id.solved"}=~/^excused/) {
670: $status = 'CANNOT_ANSWER';
671: }
672: if ($status eq 'CANNOT_ANSWER'
673: && &show_answer_problem_status()) {
674: $status = 'SHOW_ANSWER';
675: }
676: }
677: if ($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER') {
678: my @interval=&Apache::lonnet::EXT("resource.$id.interval",$symb);
679: &Apache::lonxml::debug("looking for interval @interval");
680: if ($interval[0]=~ /^\d+/) {
681: my $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
682: &Apache::lonxml::debug("looking for accesstime $first_access");
683: if (!$first_access) {
684: $status='NOT_YET_VIEWED';
685: my $due_date = &due_date($id,$symb);
686: my $seconds_left = $due_date - time;
687: my ($timelimit) = ($interval[0] =~ /^(\d+)/);
688: if ($seconds_left > $timelimit || $due_date eq '') {
689: $seconds_left = $timelimit;
690: }
691: $datemsg=&seconds_to_human_length($seconds_left);
692: }
693: }
694: }
695:
696: #if (($status ne 'CLOSED') && ($Apache::lonhomework::type eq 'exam') &&
697: # (!$Apache::lonhomework::history{"resource.0.outtoken"})) {
698: # return ('UNCHECKEDOUT','needs to be checked out');
699: #}
700:
701: &Apache::lonxml::debug("sending back :$status:$datemsg:");
702: if (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED')) {
703: &Apache::lonxml::debug("should be allowed to browse a resource when closed");
704: $status='CAN_ANSWER';
705: $datemsg=&mt('is closed but you are allowed to view it');
706: }
707:
708: return ($status,$datemsg);
709: }
710: # this should work exactly like the copy in lonnavmaps.pm
711: sub due_date {
712: my ($part_id,$symb,$udom,$uname)=@_;
713: my $date;
714: my @interval= &Apache::lonnet::EXT("resource.$part_id.interval",$symb,
715: $udom,$uname);
716: &Apache::lonxml::debug("looking for interval $part_id $symb @interval");
717: my $due_date= &Apache::lonnet::EXT("resource.$part_id.duedate",$symb,
718: $udom,$uname);
719: &Apache::lonxml::debug("looking for due_date $part_id $symb $due_date");
720: if ($interval[0] =~ /\d+/) {
721: my $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
722: &Apache::lonxml::debug("looking for first_access $first_access ($interval[1])");
723: if (defined($first_access)) {
724: my ($timelimit) = ($interval[0] =~ /^(\d+)/);
725: my $interval = $first_access+$timelimit;
726: $date = (!$due_date || $interval < $due_date) ? $interval
727: : $due_date;
728: } else {
729: $date = $due_date;
730: }
731: } else {
732: $date = $due_date;
733: }
734: return $date;
735: }
736:
737: sub seconds_to_human_length {
738: my ($length)=@_;
739:
740: my $seconds=$length%60; $length=int($length/60);
741: my $minutes=$length%60; $length=int($length/60);
742: my $hours=$length%24; $length=int($length/24);
743: my $days=$length;
744:
745: my $timestr;
746: if ($days > 0) { $timestr.=&mt('[quant,_1,day]',$days); }
747: if ($hours > 0) { $timestr.=($timestr?", ":"").
748: &mt('[quant,_1,hour]',$hours); }
749: if ($minutes > 0) { $timestr.=($timestr?", ":"").
750: &mt('[quant,_1,minute]',$minutes); }
751: if ($seconds > 0) { $timestr.=($timestr?", ":"").
752: &mt('[quant,_1,second]',$seconds); }
753: return $timestr;
754: }
755:
756: sub showhash {
757: my (%hash) = @_;
758: &showhashsubset(\%hash,'.');
759: return '';
760: }
761:
762: sub showarray {
763: my ($array)=@_;
764: my $string="(";
765: foreach my $elm (@{ $array }) {
766: if (ref($elm) eq 'ARRAY') {
767: $string.=&showarray($elm);
768: } elsif (ref($elm) eq 'HASH') {
769: $string.= "HASH --- \n<br />";
770: $string.= &showhashsubset($elm,'.');
771: } else {
772: $string.="$elm,"
773: }
774: }
775: chop($string);
776: $string.=")";
777: return $string;
778: }
779:
780: sub showhashsubset {
781: my ($hash,$keyre) = @_;
782: my $resultkey;
783: foreach $resultkey (sort(keys(%$hash))) {
784: if ($resultkey !~ /$keyre/) { next; }
785: if (ref($$hash{$resultkey}) eq 'ARRAY' ) {
786: &Apache::lonxml::debug("$resultkey ---- ".
787: &showarray($$hash{$resultkey}));
788: } elsif (ref($$hash{$resultkey}) eq 'HASH' ) {
789: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
790: &showhashsubset($$hash{$resultkey},'.');
791: } else {
792: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
793: }
794: }
795: &Apache::lonxml::debug("\n<br />restored values^</br>\n");
796: return '';
797: }
798:
799: sub setuppermissions {
800: $Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$env{'request.filename'});
801: unless ($Apache::lonhomework::browse eq 'F') {
802: $Apache::lonhomework::browse=&Apache::lonnet::allowed('bro',$env{'request.filename'});
803: }
804: my $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'});
805: if (! $viewgrades &&
806: exists($env{'request.course.sec'}) &&
807: $env{'request.course.sec'} !~ /^\s*$/) {
808: $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'}.
809: '/'.$env{'request.course.sec'});
810: if ($viewgrades) {
811: $Apache::lonhomework::viewgradessec = $env{'request.course.sec'};
812: }
813: }
814: $Apache::lonhomework::viewgrades = $viewgrades;
815:
816: if ($Apache::lonhomework::browse eq 'F' &&
817: $env{'form.devalidatecourseresdata'} eq 'on') {
818: my (undef,$courseid) = &Apache::lonnet::whichuser();
819: &Apache::lonnet::devalidatecourseresdata($env{"course.$courseid.num"},
820: $env{"course.$courseid.domain"});
821: }
822:
823: my $modifygrades = &Apache::lonnet::allowed('mgr',$env{'request.course.id'});
824: if (! $modifygrades &&
825: exists($env{'request.course.sec'}) &&
826: $env{'request.course.sec'} !~ /^\s*$/) {
827: $modifygrades =
828: &Apache::lonnet::allowed('mgr',$env{'request.course.id'}.
829: '/'.$env{'request.course.sec'});
830: if ($modifygrades) {
831: $Apache::lonhomework::modifygradessec = $env{'request.course.sec'};
832: }
833: }
834: $Apache::lonhomework::modifygrades = $modifygrades;
835:
836: my $queuegrade = &Apache::lonnet::allowed('mqg',$env{'request.course.id'});
837: if (! $queuegrade &&
838: exists($env{'request.course.sec'}) &&
839: $env{'request.course.sec'} !~ /^\s*$/) {
840: $queuegrade =
841: &Apache::lonnet::allowed('qgr',$env{'request.course.id'}.
842: '/'.$env{'request.course.sec'});
843: }
844: $Apache::lonhomework::queuegrade = $queuegrade;
845: return '';
846: }
847:
848: sub unset_permissions {
849: undef($Apache::lonhomework::queuegrade);
850: undef($Apache::lonhomework::modifygrades);
851: undef($Apache::lonhomework::modifygradessec);
852: undef($Apache::lonhomework::viewgrades);
853: undef($Apache::lonhomework::viewgradessec);
854: undef($Apache::lonhomework::browse);
855: }
856:
857: sub setupheader {
858: my $request=$_[0];
859: &Apache::loncommon::content_type($request,'text/html');
860: if (!$Apache::lonxml::debug && ($ENV{'REQUEST_METHOD'} eq 'GET')) {
861: &Apache::loncommon::no_cache($request);
862: }
863: # $request->set_last_modified(&Apache::lonnet::metadata($request->uri,
864: # 'lastrevisiondate'));
865: $request->send_http_header;
866: return OK if $request->header_only;
867: return ''
868: }
869:
870: sub handle_save_or_undo {
871: my ($request,$problem,$result,$getobjref) = @_;
872:
873: my $file = &Apache::lonnet::filelocation("",$request->uri);
874: my $filebak =$file.".bak";
875: my $filetmp =$file.".tmp";
876: my $error=0;
877: if (($env{'form.problemmode'} eq 'undo') || ($env{'form.problemmode'} eq 'undoxml')) {
878: my $error=0;
879: if (!&File::Copy::copy($file,$filetmp)) { $error=1; }
880: if ((!$error) && (!&File::Copy::copy($filebak,$file))) { $error=1; }
881: if ((!$error) && (!&File::Copy::move($filetmp,$filebak))) { $error=1; }
882: if (!$error) {
883: &Apache::lonxml::info("<p><b>".
884: &mt("Undid changes, Switched [_1] and [_2]",
885: '<span class="LC_filename">'.$filebak.
886: '</span>',
887: '<span class="LC_filename">'.$file.
888: '</span>')."</b></p>");
889: } else {
890: &Apache::lonxml::info("<p><span class=\"LC_error\">".
891: &mt("Unable to undo, unable to switch [_1] and [_2]",
892: '<span class="LC_filename">'.
893: $filebak.'</span>',
894: '<span class="LC_filename">'.
895: $file.'</span>')."</span></p>");
896: $error=1;
897: }
898: } else {
899: &Apache::lonnet::correct_line_ends($result);
900:
901: my $fs=Apache::File->new(">$filebak");
902: if (defined($fs)) {
903: print $fs $$problem;
904: } else {
905: &Apache::lonxml::info("<span class=\"LC_error\">".
906: &mt("Unable to make backup [_1]",
907: '<span class="LC_filename">'.
908: $filebak.'</span>')."</span>");
909: $error=2;
910: }
911: my $fh=Apache::File->new(">$file");
912: if (defined($fh)) {
913: print $fh $$result;
914: if (ref($getobjref) eq 'SCALAR') {
915: if ($file =~ m{([^/]+)\.(html?)$}) {
916: my $fname = $1;
917: my $ext = $2;
918: my $path = $file;
919: $path =~ s/\Q$fname\E\.\Q$ext\E$//;
920: my (%allfiles,%codebase);
921: &Apache::lonnet::extract_embedded_items($file,\%allfiles,
922: \%codebase,$result);
923: if (keys(%allfiles) > 0) {
924: my $url = $request->uri;
925: my $state = <<STATE;
926: <input type="hidden" name="action" value="upload_embedded" />
927: <input type="hidden" name="url" value="$url" />
928: STATE
929: $$getobjref = "<h3>".&mt("Reference Warning")."</h3>".
930: "<p>".&mt("Completed upload of the file. This file contained references to other files.")."</p>".
931: "<p>".&mt("Please select the locations from which the referenced files are to be uploaded.")."</p>".
932: &Apache::loncommon::ask_for_embedded_content($url,$state,\%allfiles,\%codebase,
933: {'error_on_invalid_names' => 1,
934: 'ignore_remote_references' => 1,});
935: }
936: }
937: }
938: } else {
939: &Apache::lonxml::info('<span class="LC_error">'.
940: &mt("Unable to write to [_1]",
941: '<span class="LC_filename">'.
942: $file.'</span>').
943: '</span>');
944: $error|=4;
945: }
946: }
947: return $error;
948: }
949:
950: sub analyze_header {
951: my ($request) = @_;
952: my $js = &Apache::lonxml::setmode_javascript();
953:
954: # Breadcrumbs
955: my $text = 'Authoring Space';
956: my $href = &Apache::loncommon::authorspace($request->uri);
957: if ($env{'request.course.id'}) {
958: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
959: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
960: if ($href eq "/priv/$cdom/$cnum/") {
961: $text = 'Course Authoring Space';
962: }
963: }
964: my $brcrum = [{'href' => $href,
965: 'text' => $text},
966: {'href' => '',
967: 'text' => 'Problem Testing'},
968: {'href' => '',
969: 'text' => 'Analyzing a problem'}];
970:
971: my $result =
972: &Apache::loncommon::start_page('Analyzing a problem',
973: $js,
974: {'bread_crumbs' => $brcrum,})
975: .&Apache::loncommon::head_subbox(
976: &Apache::loncommon::CSTR_pageheader());
977: my %lt = &Apache::lonlocal::texthash(
978: edit => 'Edit',
979: editxml => 'EditXML',
980: );
981: $result .=
982: '<form name="lonhomework" method="post" action="'.
983: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
984: '<input type="hidden" name="problemmode" value="'.
985: $env{'form.problemmode'}.'" />'.
986: &Apache::structuretags::remember_problem_state().'
987: <div class="LC_edit_problem_analyze_header">';
988: my %editors = &Apache::loncommon::permitted_editors();
989: foreach my $item ('editxml','edit') {
990: next unless ($editors{$item});
991: $result .= '<input type="button" name="submitmode" value="'.$lt{$item}.'" '.
992: 'onclick="javascript:setmode(this.form,'."'$item'".')" />'.
993: "\n";
994: }
995: $result .=
996: '<hr />
997: <input type="button" name="submitmode" value="'.&mt("View").'" '.
998: 'onclick="javascript:setmode(this.form,'."'view'".')" />
999: <hr />
1000: </div>'
1001: .&Apache::lonxml::message_location().
1002: '</form>';
1003: &Apache::lonxml::add_messages(\$result);
1004: $request->print($result);
1005: $request->rflush();
1006: }
1007:
1008: sub analyze_footer {
1009: my ($request) = @_;
1010: $request->print(&Apache::loncommon::end_page());
1011: $request->rflush();
1012: }
1013:
1014: sub analyze {
1015: my ($request,$file) = @_;
1016: &Apache::lonxml::debug("Analyze");
1017: my $result;
1018: my %overall;
1019: my %seedexample;
1020: my %allparts;
1021: my $rndseed=$env{'form.rndseed'};
1022: &analyze_header($request);
1023: my %prog_state=
1024: &Apache::lonhtmlcommon::Create_PrgWin($request,$env{'form.numtoanalyze'});
1025: for(my $i=1;$i<$env{'form.numtoanalyze'}+1;$i++) {
1026: &Apache::lonhtmlcommon::Increment_PrgWin($request,\%prog_state,'last problem');
1027: if (&Apache::loncommon::connection_aborted($request)) { return; }
1028: my $thisseed=$i+$rndseed;
1029: my $subresult=&Apache::lonnet::ssi($request->uri,
1030: ('grade_target' => 'analyze'),
1031: ('rndseed' => $thisseed));
1032: (my $garbage,$subresult)=split(/_HASH_REF__/,$subresult,2);
1033: my %analyze=&Apache::lonnet::str2hash($subresult);
1034: my @parts;
1035: if (ref($analyze{'parts'}) eq 'ARRAY') {
1036: @parts=@{ $analyze{'parts'} };
1037: }
1038: foreach my $part (@parts) {
1039: if (!exists($allparts{$part})) {$allparts{$part}=1;};
1040: if ($analyze{$part.'.type'} eq 'numericalresponse' ||
1041: $analyze{$part.'.type'} eq 'stringresponse' ||
1042: $analyze{$part.'.type'} eq 'formularesponse' ) {
1043: foreach my $name (keys(%{ $analyze{$part.'.answer'} })) {
1044: my $i=0;
1045: foreach my $answer_part (@{ $analyze{$part.'.answer'}{$name} }) {
1046: push( @{ $overall{$part.'.answer'}[$i] },
1047: $answer_part);
1048: my $concatanswer= join("\0",@{ $answer_part });
1049: if (($concatanswer eq '') || ($concatanswer=~/^\@/)) {
1050: $answer_part = ['<span class="LC_error">'.&mt('Error').'</span>'];
1051: }
1052: $seedexample{join("\0",$part,$i,@{$answer_part})}=
1053: $thisseed;
1054: $i++;
1055: }
1056: }
1057: if (!keys(%{ $analyze{$part.'.answer'} })) {
1058: my $answer_part =
1059: ['<span class="LC_error">'.&mt('Error').'</span>'];
1060: $seedexample{join("\0",$part,0,@{$answer_part})}=
1061: $thisseed;
1062: push( @{ $overall{$part.'.answer'}[0] },
1063: $answer_part);
1064: }
1065: }
1066: }
1067: }
1068: &Apache::lonhtmlcommon::Update_PrgWin($request,\%prog_state,&mt('Analyzing Results'));
1069: $request->print('<hr />'
1070: .'<h3>'
1071: .&mt('List of possible answers')
1072: .'</h3>'
1073: );
1074: foreach my $part (sort(keys(%allparts))) {
1075: if ((ref($overall{$part.'.answer'}) eq 'ARRAY') &&
1076: (@{$overall{$part.'.answer'}} > 0)) {
1077: for (my $i=0;$i<scalar(@{ $overall{$part.'.answer'} });$i++) {
1078: my $num_cols=scalar(@{ $overall{$part.'.answer'}[$i][0] });
1079: $request->print(&Apache::loncommon::start_data_table()
1080: .&Apache::loncommon::start_data_table_header_row()
1081: .'<th colspan="'.($num_cols+1).'">'
1082: .&mt('Part').' '.$part
1083: );
1084: if (scalar(@{ $overall{$part.'.answer'} }) > 1) {
1085: $request->print(' '.&mt('Answer [_1]',$i+1));
1086: }
1087: $request->print('</th>'
1088: .&Apache::loncommon::end_data_table_header_row()
1089: );
1090: my %frequency;
1091: foreach my $answer (sort {$a->[0] <=> $b->[0]} (@{ $overall{$part.'.answer'}[$i] })) {
1092: $frequency{join("\0",@{ $answer })}++;
1093: }
1094: $request->print(&Apache::loncommon::start_data_table_header_row()
1095: .'<th colspan="'.($num_cols).'">'.&mt('Answer').'</th>'
1096: .'<th>'.&mt('Frequency').'<br />'
1097: .'('.&mt('click for example').')</th>'
1098: .&Apache::loncommon::end_data_table_header_row()
1099: );
1100: foreach my $answer (sort {(split("\0",$a))[0] <=> (split("\0",$b))[0]} (keys(%frequency))) {
1101: $request->print(&Apache::loncommon::start_data_table_row()
1102: .'<td>'
1103: .join('</td><td>',split("\0",$answer))
1104: .'</td>'
1105: .'<td>'
1106: .'<a href="'.$request->uri.'?rndseed='.$seedexample{join("\0",$part,$i,$answer)}.'">'.$frequency{$answer}.'</a>'
1107: .'</td>'
1108: .&Apache::loncommon::end_data_table_row()
1109: );
1110: }
1111: $request->print(&Apache::loncommon::end_data_table());
1112: }
1113: } else {
1114: $request->print('<p class="LC_warning">'
1115: .&mt('Response [_1] is not analyzable at this time.',$part)
1116: .'</p>'
1117: );
1118: }
1119: }
1120: if (scalar(keys(%allparts)) == 0 ) {
1121: $request->print('<p class="LC_warning">'
1122: .&mt('Found no analyzable responses in this problem.'
1123: .' Currently only Numerical, Formula and String response styles are supported.')
1124: .'</p>'
1125: );
1126: }
1127: &Apache::lonhtmlcommon::Close_PrgWin($request,\%prog_state);
1128: &analyze_footer($request);
1129: &Apache::lonhomework::showhash(%overall);
1130: return $result;
1131: }
1132:
1133: {
1134: my $show_problem_status;
1135: sub reset_show_problem_status {
1136: undef($show_problem_status);
1137: }
1138:
1139: sub set_show_problem_status {
1140: my ($new_status) = @_;
1141: $show_problem_status = lc($new_status);
1142: }
1143:
1144: sub hide_problem_status {
1145: return ($show_problem_status eq 'no'
1146: || $show_problem_status eq 'no_feedback_ever');
1147: }
1148:
1149: sub show_problem_status {
1150: return ($show_problem_status eq 'yes'
1151: || $show_problem_status eq 'answer'
1152: || $show_problem_status eq '');
1153: }
1154:
1155: sub show_some_problem_status {
1156: return ($show_problem_status eq 'no');
1157: }
1158:
1159: sub show_no_problem_status {
1160: return ($show_problem_status eq 'no_feedback_ever');
1161: }
1162:
1163: sub show_answer_problem_status {
1164: return ($show_problem_status eq 'answer');
1165: }
1166: }
1167:
1168: sub editxmlmode {
1169: my ($request,$file) = @_;
1170: my $result;
1171: my $problem=&Apache::lonnet::getfile($file);
1172: if ($problem eq -1) {
1173: &Apache::lonxml::error(
1174: '<p class="LC_error">'
1175: .&mt('Unable to find [_1]',
1176: '<span class="LC_filename">'.$file.'</span>')
1177: .'</p>');
1178:
1179: $problem='';
1180: }
1181: if (($env{'form.problemmode'} eq 'saveeditxml') ||
1182: ($env{'form.problemmode'} eq 'saveviewxml') ||
1183: ($env{'form.problemmode'} eq 'undoxml')) {
1184: my $error=&handle_save_or_undo($request,\$problem,
1185: \$env{'form.editxmltext'});
1186: if (!$error) { $problem=&Apache::lonnet::getfile($file); }
1187: }
1188: &Apache::lonhomework::showhashsubset(\%env,'^form');
1189: if ($env{'form.problemmode'} eq 'saveviewxml') {
1190: &Apache::lonhomework::showhashsubset(\%env,'^form');
1191: $env{'form.problemmode'}='view';
1192: &renderpage($request,$file);
1193: } else {
1194: my ($rows,$cols) = &Apache::edit::textarea_sizes(\$problem);
1195: if ($cols > 80) { $cols = 80; }
1196: if ($cols < 70) { $cols = 70; }
1197: if ($rows < 20) { $rows = 20; }
1198: my $js =
1199: &Apache::edit::js_change_detection().
1200: &Apache::loncommon::resize_textarea_js().
1201: &Apache::lonxml::setmode_javascript().
1202: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
1203:
1204: # Breadcrumbs
1205: my $text = 'Authoring Space';
1206: my $href = &Apache::loncommon::authorspace($request->uri);
1207: if ($env{'request.course.id'}) {
1208: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1209: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1210: if ($href eq "/priv/$cdom/$cnum/") {
1211: $text = 'Course Authoring Space';
1212: }
1213: }
1214: my $brcrum = [{'href' => $href,
1215: 'text' => $text},
1216: {'href' => '',
1217: 'text' => 'Problem Editing'}];
1218:
1219: my $start_page =
1220: &Apache::loncommon::start_page(&mt("EditXML [_1]",$file),$js,
1221: {'no_auto_mt_title' => 1,
1222: 'only_body' => 0,
1223: 'add_entries' => {
1224: 'onresize' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
1225: 'onload' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
1226: },
1227: 'bread_crumbs' => $brcrum,
1228: });
1229:
1230: $result=$start_page
1231: .&Apache::loncommon::head_subbox(
1232: &Apache::loncommon::CSTR_pageheader());
1233: $result.=&renderpage($request,$file,['no_output_web'],1).
1234: '<form '.&Apache::edit::form_change_detection().' name="lonhomework" method="post" action="'.
1235: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
1236: &Apache::structuretags::remember_problem_state().'
1237: <div class="LC_edit_problem_header">
1238: <div class="LC_edit_problem_header_title">'.
1239: &mt('Problem Editing').' '.&Apache::loncommon::help_open_topic('Problem_Editor_XML_Index').
1240: '</div><div class="LC_edit_actionbar" id="actionbar">';
1241:
1242: $result.='<input type="hidden" name="problemmode" value="saveedit" />'.
1243: &Apache::structuretags::problem_edit_buttons('editxml');
1244: $result.='<div>';
1245:
1246: $result .= '<ol class="LC_primary_menu" style="display:inline-block;font-size:90%;vertical-align:middle;">';
1247:
1248: my $nocodemirror = &Apache::loncommon::nocodemirror();
1249: unless ($nocodemirror) {
1250: # dropdown menus
1251: $result .= Apache::lonmenu::create_submenu("#", "",
1252: &mt("Problem Templates"), template_dropdown_datastructure());
1253:
1254: $result .= Apache::lonmenu::create_submenu("#", "",
1255: &mt("Response Types"), responseblock_dropdown_datastructure());
1256:
1257: $result .= Apache::lonmenu::create_submenu("#", "",
1258: &mt("Conditional Blocks"), conditional_scripting_datastructure());
1259:
1260: $result .= Apache::lonmenu::create_submenu("#", "",
1261: &mt("Miscellaneous"), misc_datastructure());
1262: }
1263:
1264: $result .= Apache::lonmenu::create_submenu("#", "",
1265: &mt("Help") . ' <img src="/adm/help/help.png" alt="' . &mt("Help") .
1266: '" style="vertical-align:text-bottom; height: auto; margin:0; "/>',
1267: helpmenu_datastructure(),"");
1268:
1269: $result.="</ol></div>";
1270:
1271: $result .= '</div></div>' .
1272: &Apache::lonxml::message_location() .
1273: &Apache::loncommon::xmleditor_js() .
1274: '<textarea ' . &Apache::edit::element_change_detection() .
1275: ' rows="'.$rows.'" cols="'.$cols.'" style="width:100%" ' .
1276: ' name="editxmltext" id="LC_editxmltext">' .
1277: &HTML::Entities::encode($problem,'<>&"') .
1278: '</textarea> <div id="LC_aftertextarea"> </div> </form>';
1279:
1280: my $resource = $env{'request.ambiguous'};
1281: unless ($nocodemirror) {
1282: $result .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined-xml.css">
1283: <script src="/adm/codemirror/codemirror-compressed-xml.js"></script>
1284: <script>
1285: CodeMirror.defineMode("mixedmode", function(config) {
1286: return CodeMirror.multiplexingMode(
1287: CodeMirror.getMode(config, "xml"),
1288: {
1289: open: "\<script type=\"loncapa/perl\"\>", close: "\</script\>",
1290: mode: CodeMirror.getMode(config, "perl"),
1291: delimStyle: "tag",
1292: }
1293: );
1294: });
1295: var cm = CodeMirror.fromTextArea(document.getElementById("LC_editxmltext"),
1296: {
1297: mode: "mixedmode",
1298: lineWrapping: true,
1299: lineNumbers: true,
1300: tabSize: 4,
1301: indentUnit: 4,
1302:
1303: autoCloseTags: true,
1304: autoCloseBrackets: true,
1305: height: "auto",
1306: styleActiveLine: true,
1307:
1308: extraKeys: {
1309: "Tab": "indentMore",
1310: "Shift-Tab": "indentLess",
1311: }
1312: });
1313: restoreScrollPosition("'.$resource.'");
1314: </script>';
1315: }
1316:
1317: $result .= &Apache::loncommon::end_page();
1318: &Apache::lonxml::add_messages(\$result);
1319: $request->print($result);
1320: }
1321: return '';
1322: }
1323:
1324: #
1325: # Render the page in whatever target desired.
1326: #
1327: sub renderpage {
1328: my ($request,$file,$targets,$return_string,$donebuttonmsg,$viewasuser,$symb) = @_;
1329:
1330: my @targets = @{$targets || [&get_target()]};
1331: &Apache::lonhomework::showhashsubset(\%env,'form.');
1332: &Apache::lonxml::debug("Running targets ".join(':',@targets));
1333:
1334: my $overall_result;
1335: foreach my $target (@targets) {
1336: # FIXME need to do something intelligent when a problem goes
1337: # from viewable to not viewable due to map conditions
1338: #&setuppermissions();
1339: #if ( $Apache::lonhomework::browse ne '2'
1340: # && $Apache::lonhomework::browse ne 'F' ) {
1341: # $request->print(" You most likely shouldn't see me.");
1342: #}
1343: #my $t0 = [&gettimeofday()];
1344: my $output=1;
1345: if ($target eq 'no_output_web') {
1346: $target = 'web'; $output=0;
1347: }
1348: my $problem=&Apache::lonnet::getfile($file);
1349: my $result;
1350: if ($problem eq -1) {
1351: $problem='';
1352: my $filename=(split('/',$file))[-1];
1353: my $error =
1354: '<p class="LC_error">'
1355: .&mt('Unable to find [_1]',
1356: '<span class="LC_filename">'.$filename.'</span>')
1357: ."</p>";
1358: $result.=
1359: &Apache::loncommon::simple_error_page($request,'Not available',
1360: $error,{'no_auto_mt_msg' => 1});
1361: return;
1362: }
1363:
1364: my %mystyle;
1365: if ($target eq 'analyze') { %Apache::lonhomework::analyze=(); }
1366: if ($target eq 'answer') { &showhash(%Apache::lonhomework::history); }
1367: if ($target eq 'web') {&Apache::lonhomework::showhashsubset(\%env,'^form');}
1368:
1369: if (($target eq 'web') && ($viewasuser ne '') && ($symb ne '')) {
1370: $env{'request.user_in_effect'} = $viewasuser;
1371: }
1372:
1373: &Apache::lonxml::debug("Should be parsing now");
1374: $result .= &Apache::lonxml::xmlparse($request, $target, $problem,
1375: &setup_vars($target),%mystyle);
1376: &finished_parsing();
1377: if (!$output) { $result = ''; }
1378: #$request->print("Result follows:");
1379: if ($target eq 'modified') {
1380: &handle_save_or_undo($request,\$problem,\$result);
1381: } else {
1382: if ($target eq 'analyze') {
1383: $result=&Apache::lonnet::hashref2str(\%Apache::lonhomework::analyze);
1384: undef(%Apache::lonhomework::analyze);
1385: } elsif ($target eq 'web') {
1386: if ($donebuttonmsg) {
1387: $result =~ s{</body>}{};
1388: $result.= &Apache::loncommon::confirmwrapper(&Apache::lonhtmlcommon::confirm_success($donebuttonmsg,1))."\n</body>";
1389: }
1390: }
1391: #my $td=&tv_interval($t0);
1392: #if ( $Apache::lonxml::debug) {
1393: #$result =~ s:</body>::;
1394: #$result.="<br />Spent $td seconds processing target $target\n</body>";
1395: #}
1396: # $request->print($result);
1397: $overall_result.=$result;
1398: if (($target eq 'web') && ($viewasuser ne '') && ($symb ne '')) {
1399: my ($vuname,$vudom) = split(/:/,$viewasuser);
1400: $overall_result .= &Apache::grades::view_as_user($symb,$vuname,$vudom).
1401: '</body></html>';
1402: }
1403: # $request->rflush();
1404: }
1405: if (($target eq 'web') && ($viewasuser ne '') && ($symb ne '')) {
1406: undef($env{'request.user_in_effect'});
1407: }
1408: #$request->print(":Result ends");
1409: #my $td=&tv_interval($t0);
1410: }
1411: if (!$return_string) {
1412: &Apache::lonxml::add_messages(\$overall_result);
1413: $request->print($overall_result);
1414: $request->rflush();
1415: } else {
1416: return $overall_result;
1417: }
1418: }
1419:
1420: sub finished_parsing {
1421: undef($Apache::lonhomework::parsing_a_problem);
1422: undef($Apache::lonhomework::parsing_a_task);
1423: }
1424:
1425: # function extracted from get_template_html
1426: # returns "key" -> list
1427: # key: path of template
1428: # value 1: title
1429: # value 2: category
1430: # value 3: name of help topic ???
1431: sub get_template_list{
1432: my ($extension) = @_;
1433:
1434: my @files = glob($Apache::lonnet::perlvar{'lonIncludes'}.
1435: '/templates/*.'.$extension);
1436: @files = map {[$_,&mt(&Apache::lonnet::metadata($_, 'title')),
1437: (&Apache::lonnet::metadata($_, 'category')?&mt(&Apache::lonnet::metadata($_, 'category')):&mt('Miscellaneous')),
1438: &mt(&Apache::lonnet::metadata($_, 'help'))]} (@files);
1439: @files = sort {$a->[2].$a->[1] cmp $b->[2].$b->[1]} (@files);
1440: return @files;
1441: }
1442:
1443: sub get_template_html {
1444: my ($extension) = @_;
1445: my $result;
1446: my @allnames;
1447: &Apache::lonxml::debug("Looking for :$extension:");
1448: my $glob_extension = $extension;
1449: if ($extension eq 'survey' || $extension eq 'exam') {
1450: $glob_extension = 'problem';
1451: }
1452: my @files = &get_template_list($extension);
1453: my ($midpoint,$seconddiv,$numfiles);
1454: my @noexamplelink = ('blank.problem','blank.library','script.library');
1455: $numfiles = 0;
1456: foreach my $file (@files) {
1457: next if ($file->[1] !~ /\S/);
1458: $numfiles ++;
1459: }
1460: if ($numfiles > 0) {
1461: $result = '<div class="LC_left_float">';
1462: $midpoint = int($numfiles/2);
1463: if ($numfiles%2) {
1464: $midpoint ++;
1465: }
1466: }
1467: my $count = 0;
1468: my $currentcategory='';
1469: my $first = 1;
1470: my $londocroot = $Apache::lonnet::perlvar{'lonDocRoot'};
1471: foreach my $file (@files) {
1472: next if ($file->[1] !~ /\S/);
1473: if ($file->[2] ne $currentcategory) {
1474: $currentcategory=$file->[2];
1475: if ((!$seconddiv) && ($count >= $midpoint)) {
1476: $result .= '</div></div>'."\n".'<div class="LC_left_float">'."\n";
1477: $seconddiv = 1;
1478: } elsif (!$first) {
1479: $result.='</div>'."\n";
1480: } else {
1481: $first = 0;
1482: }
1483: $result.= '<div class="LC_Box">'."\n"
1484: .'<h3 class="LC_hcell">'.$currentcategory.'</h3>'."\n";
1485: $count++;
1486: }
1487: $result .=
1488: '<label><input type="radio" name="template" value="'.$file->[0].'" />'.
1489: $file->[1].'</label>';
1490: if ($file->[3]) {
1491: $result.=&Apache::loncommon::help_open_topic($file->[3]);
1492: }
1493: # Provide example link
1494: my $filename=$file->[0];
1495: $filename=~s{^\Q$londocroot\E}{};
1496: if (!(grep($filename =~ /\Q$_\E$/,@noexamplelink))) {
1497: $result .= ' <span class="LC_fontsize_small">'
1498: .&Apache::loncommon::modal_link(
1499: $filename.'?inhibitmenu=yes',&mt('Example'),600,420,'sample')
1500: .'</span>';
1501: }
1502: $result .= '<br />'."\n";
1503: $count ++;
1504: }
1505: if ($numfiles > 0) {
1506: $result .= '</div></div>'."\n".'<div class="LC_clear_float_footer"></div>'."\n";
1507: }
1508: return $result;
1509: }
1510:
1511: sub newproblem {
1512: my ($request) = @_;
1513:
1514: if ($env{'form.mode'} eq 'blank'){
1515: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1516: my $templatefilename =
1517: $request->dir_config('lonIncludes').'/templates/blank.problem';
1518: &File::Copy::copy($templatefilename,$dest);
1519: &renderpage($request,$dest);
1520: return;
1521: }
1522: my $errormsg;
1523: if ($env{'form.template'}) {
1524: my $file;
1525: my ($extension) = ($env{'form.template'} =~ /\.(\w+)$/);
1526: if ($extension) {
1527: my @files = &get_template_list($extension);
1528: foreach my $poss (@files) {
1529: if (ref($poss) eq 'ARRAY') {
1530: if ($env{'form.template'} eq $poss->[0]) {
1531: $file = $env{'form.template'};
1532: last;
1533: }
1534: }
1535: }
1536: if ($file) {
1537: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1538: &File::Copy::copy($file,$dest);
1539: &renderpage($request,$dest);
1540: return;
1541: } else {
1542: $errormsg = '<p class="LC_error">'.&mt('Invalid template file.').'</p>';
1543: }
1544: } else {
1545: $errormsg = '<p class="LC_error">'.&mt('Invalid template file; template needs to be a .problem, .library, or .task file.').'</p>';
1546: }
1547: }
1548:
1549: my ($extension) = ($request->uri =~ m/\.(\w+)$/);
1550: &Apache::lonxml::debug("Looking for :$extension:");
1551: my $templatelist=&get_template_html($extension);
1552: if ($env{'form.newfile'} && !$templatelist) {
1553: # no templates found
1554: my $templatefilename =
1555: $request->dir_config('lonIncludes').'/templates/blank.'.$extension;
1556: &Apache::lonxml::debug("$templatefilename");
1557: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1558: &File::Copy::copy($templatefilename,$dest);
1559: &renderpage($request,$dest);
1560: } else {
1561: my $url=&HTML::Entities::encode($request->uri,'<>&"');
1562: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1563: my $instructions;
1564: my $text = 'Authoring Space';
1565: my $href = &Apache::loncommon::authorspace($request->uri);
1566: if ($env{'request.course.id'}) {
1567: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1568: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1569: if ($href eq "/priv/$cdom/$cnum/") {
1570: $text = 'Course Authoring Space';
1571: }
1572: }
1573: my $brcrum = [{'href' => $href,
1574: 'text' => $text},
1575: {'href' => '',
1576: 'text' => "Create New $extension"}];
1577: my $start_page =
1578: &Apache::loncommon::start_page("Create New $extension",
1579: undef,
1580: {'bread_crumbs' => $brcrum,});
1581: $request->print(
1582: $start_page
1583: .&Apache::loncommon::head_subbox(
1584: &Apache::loncommon::CSTR_pageheader())
1585: .'<h1>'.&mt("Creating a new $extension resource.")."</h1>
1586: $errormsg
1587: ".&mt("The requested file [_1] currently does not exist.",
1588: '<span class="LC_filename">'.$url.'</span>').'
1589: <p class="LC_info">
1590: '.&mt("To create a new $extension, select a template from the".
1591: " list below. Then click on the \"Create $extension\" button.").'
1592: </p><div><form action="'.$url.'" method="post">');
1593:
1594: if (defined($templatelist)) {
1595: $request->print($templatelist);
1596: }
1597: $request->print('<br /><input type="submit" name="newfile" value="'.
1598: &mt("Create $extension").'" />');
1599: $request->print('</form></div>'.&Apache::loncommon::end_page());
1600: }
1601: return;
1602: }
1603:
1604: sub update_construct_style {
1605: if ($env{'request.state'} eq "construct"
1606: && $env{'form.problemmode'} eq 'view'
1607: && defined($env{'form.submitted'})
1608: && !defined($env{'form.resetdata'})
1609: && !defined($env{'form.newrandomization'})) {
1610: if ((!$env{'form.style_file'} && $env{'construct.style'})
1611: ||$env{'form.clear_style_file'}) {
1612: &Apache::lonnet::delenv('construct.style');
1613: } elsif ($env{'form.style_file'}
1614: && $env{'construct.style'} ne $env{'form.style_file'}) {
1615: &Apache::lonnet::appenv({'construct.style' =>
1616: $env{'form.style_file'}});
1617: }
1618: }
1619: }
1620:
1621: #
1622: # Sets interval for current user so time left will be zero, either for the entire folder
1623: # containing the current resource, or just the resource, depending on value of first item
1624: # in interval array retrieved from EXT("resource.0.interval");
1625: #
1626: sub zero_timer {
1627: my ($symb) = @_;
1628: my ($hastimeleft,$first_access,$now);
1629: my @interval=&Apache::lonnet::EXT("resource.0.interval",$symb);
1630: if (@interval > 1) {
1631: if ($interval[1] eq 'course') {
1632: return ('fail',&mt('Ending of timed events not supported for intervals set course-wide'));
1633: } else {
1634: my $now = time;
1635: my $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
1636: if ($first_access > 0) {
1637: my ($timelimit,$donesuffix) = split(/_/,$interval[0],2);
1638: if ($donesuffix =~ /^done(?:|\:[^\:]+\:)(.*)$/) {
1639: my ($dummy,$proctor,$secret) = split(/_/,$1);
1640: if (($proctor) && ($secret ne '')) {
1641: my $key = $env{'form.LC_interval_done_proctorpass'};
1642: $key =~ s/^\s+//;
1643: $key =~ s/\s+$//;
1644: if ($env{'form.LC_interval_done_proctorpass'} ne $secret) {
1645: return ('fail',
1646: &mt('Incorrect key entered by proctor'));
1647: }
1648: }
1649: if ($first_access+$timelimit > $now) {
1650: my $done_time = $now - $first_access;
1651: my $snum = 1;
1652: if ($interval[1] eq 'map') {
1653: $snum = 2;
1654: }
1655: my $result =
1656: &Apache::lonparmset::storeparm_by_symb_inner($symb,'0_interval',
1657: $snum,$done_time,
1658: 'date_interval',
1659: $env{'user.name'},
1660: $env{'user.domain'});
1661: if ($result eq '') {
1662: # Record action in "User Notes"
1663: &Apache::lonmsg::store_instructor_comment(
1664: 'Pressed Done button for symb:<br />'.$symb,
1665: $env{'user.name'}, $env{'user.domain'});
1666: return ('ok');
1667: } else {
1668: return ('fail',&mt('Error ending timed event: [_1]',$result));
1669: }
1670: } else {
1671: return ('fail',&mt('Timed event already ended'));
1672: }
1673: } else {
1674: return ('fail',&mt('Timed event can not be ended before the time limit'));
1675: }
1676: } else {
1677: return ('fail',&mt('Timer not yet started for this timed event'));
1678: }
1679: }
1680: } else {
1681: return ('fail',&mt('No timer in use'));
1682: }
1683: return();
1684: }
1685:
1686: sub handler {
1687: #my $t0 = [&gettimeofday()];
1688: my $request=$_[0];
1689:
1690: $Apache::lonxml::request=$request;
1691: $Apache::lonxml::debug=$env{'user.debug'};
1692: $env{'request.uri'}=$request->uri;
1693: &setuppermissions();
1694:
1695: my $file=&Apache::lonnet::filelocation("",$request->uri);
1696:
1697: #check if we know where we are
1698: if ($env{'request.course.fn'} && !&Apache::lonnet::symbread('','',1,1)) {
1699: # if we are browsing we might not be able to know where we are
1700: if ($Apache::lonhomework::browse ne 'F' &&
1701: $env{'request.state'} ne "construct") {
1702: #should know where we are, so ask
1703: &unset_permissions();
1704: $request->internal_redirect('/adm/ambiguous');
1705: return OK;
1706: }
1707: }
1708: if (&setupheader($request)) {
1709: &unset_permissions();
1710: return OK;
1711: }
1712:
1713: &Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:$Apache::lonhomework::modifygrades:$Apache::lonhomework::queuegrade");
1714: &Apache::lonxml::debug("Problem Mode ".$env{'form.problemmode'});
1715: my ($symb) = &Apache::lonnet::whichuser();
1716: &Apache::lonxml::debug('symb is '.$symb);
1717: if ($env{'request.state'} eq "construct") {
1718: if ( -e $file ) {
1719: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1720: ['problemmode']);
1721: if (!(defined $env{'form.problemmode'})) {
1722: #first visit to problem in construction space
1723: $env{'form.problemmode'}= 'view';
1724: &renderpage($request,$file);
1725: } elsif (($env{'form.problemmode'} eq 'editxml') ||
1726: ($env{'form.problemmode'} eq 'saveeditxml') ||
1727: ($env{'form.problemmode'} eq 'saveviewxml') ||
1728: ($env{'form.problemmode'} eq 'undoxml')) {
1729: my %editors = &Apache::loncommon::permitted_editors();
1730: if (($editors{'xml'}) || ($env{'form.problemmode'} eq 'saveviewxml') || ($env{'form.problemmode'} eq 'undoxml')) {
1731: &editxmlmode($request,$file);
1732: } else {
1733: &update_construct_style();
1734: &renderpage($request,$file);
1735: }
1736: } elsif ($env{'form.problemmode'} eq 'calcanswers') {
1737: &analyze($request,$file);
1738: } else {
1739: &update_construct_style();
1740: &renderpage($request,$file);
1741: }
1742: } else {
1743: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1744: ['mode']);
1745: # requested file doesn't exist in contruction space
1746: &newproblem($request);
1747: }
1748: } else {
1749: # Set the event timer to zero if the "done button" was clicked. The button is
1750: # part of the doneButton form created in lonmenu.pm
1751: my ($donebuttonresult,$donemsg,$viewasuser);
1752: if ($symb && $env{'form.LC_interval_done'} eq 'true') {
1753: ($donebuttonresult,$donemsg) = &zero_timer($symb);
1754: undef($env{'form.LC_interval_done'});
1755: undef($env{'form.LC_interval_done_proctorpass'});
1756: }
1757: if (($env{'form.LC_viewas'} ne '') && $symb && $env{'request.course.id'} &&
1758: ($Apache::lonhomework::viewgrades || $Apache::lonhomework::modifygrades)) {
1759: if ($env{'form.LC_viewas'} =~ /^($match_username):($match_domain)$/) {
1760: my ($possuname,$possudom) = ($1,$2);
1761: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1762: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1763: my ($canview,$posssec);
1764: if ($env{'request.course.sec'} ne '') {
1765: if ($Apache::lonhomework::modifygradessec eq $env{'request.course.sec'}) {
1766: $canview = 'section';
1767: $posssec = $env{'request.course.sec'};
1768: } elsif ($Apache::lonhomework::viewgradessec eq $env{'request.course.sec'}) {
1769: $canview = 'section';
1770: $posssec = $env{'request.course.sec'};
1771: }
1772: }
1773: my $crstype = &Apache::loncommon::course_type();
1774: if (&Apache::loncourseuser::is_course_user($possudom,$possuname,$cdom,$cnum,
1775: $canview,$crstype,$posssec)) {
1776: $viewasuser = $possuname.':'.$possudom;
1777: }
1778: }
1779: undef($env{'form.LC_viewas'});
1780: }
1781: # just render the page normally outside of construction space
1782: &Apache::lonxml::debug("not construct");
1783: undef(@Apache::lonhomework::ltipassback);
1784: &renderpage($request,$file,undef,undef,$donemsg,$viewasuser,$symb);
1785: if (@Apache::lonhomework::ltipassback) {
1786: unless ($registered_cleanup) {
1787: my $handlers = $request->get_handlers('PerlCleanupHandler');
1788: $request->set_handlers('PerlCleanupHandler' =>
1789: [\&do_ltipassback,@{$handlers}]);
1790: }
1791: }
1792: }
1793: #my $td=&tv_interval($t0);
1794: #&Apache::lonxml::debug("Spent $td seconds processing");
1795: # always turn off debug messages
1796: $Apache::lonxml::debug=0;
1797: &unset_permissions();
1798: return OK;
1799:
1800: }
1801:
1802: sub template_dropdown_datastructure {
1803: # gathering the all templates and their path, title, category and help topic
1804: my @templates = get_template_list('problem');
1805: # template category => title
1806: my %tmplthash = ();
1807: # template title => path
1808: my %tmpltcontent = ();
1809:
1810: foreach my $template (@templates){
1811: # put in hash if the template is not empty
1812: unless ($template->[1] eq ''){
1813: push(@{$tmplthash{$template->[2]}}, $template->[1]);
1814: push(@{$tmpltcontent{$template->[1]}},$template->[0]);
1815: }
1816: }
1817:
1818: my $catList = [];
1819: foreach my $cat (sort keys %tmplthash) {
1820: my $catItems = [];
1821: foreach my $title (sort @{$tmplthash{$cat}}) {
1822: my $path = $tmpltcontent{$title}->[0];
1823: my $code;
1824: open(FH, "<$path");
1825: while(<FH>){
1826: $code.= $_ unless $_ =~ /(<problem>)|(<\/problem>)/;
1827: }
1828: close(FH);
1829:
1830: if ($code ne '') {
1831: my $href = 'javascript:insertText(\'' . &convert_for_js(&HTML::Entities::encode($code,'<>&"')) . '\')';
1832: my $currItem = [$href, $title, undef];
1833: push @{$catItems}, $currItem;
1834: }
1835: }
1836: push @{$catList}, [$catItems, $cat, undef];
1837: }
1838:
1839: return $catList;
1840: }
1841:
1842: sub responseblock_dropdown_datastructure {
1843:
1844: my $mathCat = [
1845: [
1846: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_formularesponse())) . "\')", &mt("Formula Response"), undef],
1847: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_functionplotresponse())) . "\')", &mt("Function Plot Response"), undef],
1848: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_mathresponse())) . "\')", &mt("Math Response"), undef],
1849: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_numericalresponse())) . "\')", &mt("Numerical Response"), undef]
1850: ],
1851: &mt("Math"),
1852: undef
1853: ];
1854:
1855: my $miscCat = [
1856: [
1857: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_imageresponse())) . "\')", &mt("Click on Image"), undef],
1858: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_customresponse())) . "\')", &mt("Custom Response"), undef],
1859: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_externalresponse())) . "\')", &mt("External Response"), undef],
1860: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_matchresponse())) . "\')", &mt("Match Two Lists"), undef],
1861: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_radiobuttonresponse())) . "\')", &mt("One out of N statements"), undef],
1862: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_optionresponse())) . "\')", &mt("Select from Options"), undef],
1863: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_rankresponse())) . "\')", &mt("Rank Values"), undef]
1864: ],
1865: &mt("Miscellaneous"),
1866: undef
1867: ];
1868:
1869: my $chemCat = [
1870: [
1871: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_reactionresponse())) . "\')", &mt("Chemical Reaction"), undef],
1872: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_organicresponse())) . "\')", &mt("Organic Chemical Structure"), undef]
1873: ],
1874: &mt("Chemistry"),
1875: undef
1876: ];
1877:
1878: my $textCat = [
1879: [
1880: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_stringresponse())) . "\')", &mt("String Response"), undef],
1881: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_essayresponse())) . "\')", &mt("Essay"), undef]
1882: ],
1883: &mt("Text"),
1884: undef
1885: ];
1886:
1887: return [$mathCat, $miscCat, $chemCat, $textCat];
1888: }
1889:
1890:
1891: sub conditional_scripting_datastructure {
1892: # TODO: corresponding routines should be used for the javascript:insertText parts
1893: # instead of the placeholder routine default_xml_tag with the tags
1894: # e.g. &default_xml_tag("postanswerdate") should be replaced with a routine which
1895: # returns the corresponding content for this case
1896:
1897: #TODO translated is currently temporarily here, another solution should be found where the
1898: # needed string can be retrieved
1899:
1900: my $translatedTag = '
1901: <translated>
1902: <lang which="en"></lang>
1903: <lang which="default"></lang>
1904: </translated>';
1905: return [
1906: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode($translatedTag)) . "\')", &mt("Translated Block"), undef],
1907: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("block"))) . "\')", &mt("Conditional Block"), undef],
1908: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("postanswerdate"))) . "\')", &mt("After Answer Date Block"), undef],
1909: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("preduedate"))) . "\')", &mt("Before Due Date Block"), undef],
1910: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("solved"))) . "\')", &mt("Block For After Solved"), undef],
1911: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("notsolved"))) . "\')", &mt("Block For When Not Solved"), undef]
1912: ];
1913: }
1914:
1915: sub misc_datastructure {
1916: return [
1917: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_img())) . "\')", &mt("Image"), undef],
1918: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::lonplot::insert_gnuplot())) . "\')", &mt("GNU Plot"), undef],
1919: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_organicstructure())) . "\')", &mt("Organic Structure"), undef],
1920: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_script())) . "\')", &mt("Script Block"), undef],
1921: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("allow"))) . "\')", &mt("File Dependencies"), undef],
1922: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("import"))) . "\')", &mt("Import a File"), undef],
1923: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::londefdef::insert_meta())) . "\')", &mt("Custom Metadata"), undef],
1924: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("part"))) . "\')", &mt("Problem Part"), undef]
1925: ];
1926: }
1927:
1928: # helper routine for the datastructure building subroutines
1929: sub default_xml_tag {
1930: my ($tag) = @_;
1931: return "\n<$tag></$tag>";
1932: }
1933:
1934:
1935: sub helpmenu_datastructure {
1936:
1937: # filename, title, width, height
1938: my $helpers = [
1939: ['Problem_LON-CAPA_Functions.hlp', &mt('Script Functions'), 800, 600],
1940: ['Greek_Symbols.hlp', &mt('Greek Symbols'), 500, 600],
1941: ['Other_Symbols.hlp', &mt('Other Symbols'), 500, 600],
1942: ['Authoring_Output_Tags.hlp', &mt('Output Tags'), 800, 600],
1943: ['Authoring_Multilingual_Problems.hlp',
1944: &mt('How to create problems in different languages'), 800, 600],
1945: ['loncapa.html', &mt('Language reference'), 800, 600],
1946: ];
1947:
1948: my $help_structure = [];
1949:
1950: foreach my $count (0..(scalar(@{$helpers})-1)) {
1951: my $filename = $helpers->[$count]->[0];
1952: my $title = $helpers->[$count]->[1];
1953: my $width = $helpers->[$count]->[2];
1954: my $height = $helpers->[$count]->[3];
1955: if ($width eq '') {
1956: $width = 500;
1957: }
1958: if ($height eq '') {
1959: $height = 600;
1960: }
1961: my $href = &HTML::Entities::encode("javascript:openMyModal('/adm/help/$filename',$width,$height,'yes');");
1962: push @{$help_structure}, [$href, $title, undef];
1963: }
1964:
1965: return $help_structure;
1966: }
1967:
1968: # we need substitution to not break javascript code
1969: sub convert_for_js {
1970: my $return = shift;
1971: $return =~ s|script|ESCAPEDSCRIPT|g;
1972: $return =~ s|\\|\\\\|g;
1973: $return =~ s|\n|\\r\\n|g;
1974: $return =~ s|'|\\'|g;
1975: $return =~ s|'|\\'|g;
1976: return $return;
1977: }
1978:
1979: sub do_ltipassback {
1980: if (@Apache::lonhomework::ltipassback) {
1981: foreach my $item (@Apache::lonhomework::ltipassback) {
1982: if (ref($item) eq 'HASH') {
1983: if ((ref($item->{'lti'}) eq 'HASH') && ($item->{'cid'} =~ /^($match_domain)_($match_courseid)$/)) {
1984: my ($cdom,$cnum) = ($1,$2);
1985: my $msgformat = $item->{'lti'}->{'passbackformat'};
1986: my $sigmethod = 'HMAC-SHA1';
1987: my $ltinum = $item->{'ltinum'};
1988: my $id = $item->{'pbid'};
1989: my $url = $item->{'pburl'};
1990: my $type = $item->{'pbtype'};
1991: my $scope = $item->{'scope'};
1992: my $map = $item->{'pbmap'};
1993: my $symb = $item->{'pbsymb'};
1994: my $uname = $item->{'uname'};
1995: my $udom = $item->{'udom'};
1996: my $keynum = $item->{'lti'}->{'cipher'};
1997: my $crsdef = $item->{'crsdef'};
1998: my $scoretype = $item->{'format'};
1999: my ($total,$possible);
2000: if ($scope eq 'resource') {
2001: $total = $item->{'total'};
2002: $possible = $item->{'possible'};
2003: } elsif (($scope eq 'map') || ($scope eq 'nonrec')) {
2004: ($total,$possible) = &get_lti_score($uname,$udom,$map,$scope);
2005: } elsif ($scope eq 'course') {
2006: ($total,$possible) = &get_lti_score($uname,$udom);
2007: }
2008: if (($id ne '') && ($url ne '') && ($possible)) {
2009: &LONCAPA::ltiutils::send_grade($cdom,$cnum,$crsdef,$type,$ltinum,$keynum,$id,$url,$scoretype,$sigmethod,$msgformat,$total,$possible);
2010: }
2011: }
2012: }
2013: }
2014: undef(@Apache::lonhomework::ltipassback);
2015: }
2016: }
2017:
2018: sub get_lti_score {
2019: my ($uname,$udom,$mapurl,$scope) = @_;
2020: my $navmap = Apache::lonnavmaps::navmap->new($uname,$udom);
2021: if (ref($navmap)) {
2022: my $iterator;
2023: if ($mapurl ne '') {
2024: my $map = $navmap->getResourceByUrl($mapurl);
2025: my $firstres = $map->map_start();
2026: my $finishres = $map->map_finish();
2027: my $recursive = 1;
2028: if ($scope eq 'nonrec') {
2029: $recursive = 0;
2030: }
2031: $iterator = $navmap->getIterator($firstres,$finishres,undef,$recursive);
2032: } else {
2033: $iterator = $navmap->getIterator(undef,undef,undef,1);
2034: }
2035: if (ref($iterator)) {
2036: my $depth = 1;
2037: my $total = 0;
2038: my $possible = 0;
2039: $iterator->next(); # ignore first BEGIN_MAP
2040: my $curRes = $iterator->next();
2041: while ( $depth > 0 ) {
2042: if ($curRes == $iterator->BEGIN_MAP()) {$depth++;}
2043: if ($curRes == $iterator->END_MAP()) { $depth--; }
2044: if (ref($curRes) && $curRes->is_gradable() && !$curRes->randomout) {
2045: my $parts = $curRes->parts();
2046: foreach my $part (@{$parts}) {
2047: next if ($curRes->solved($part) eq 'excused');
2048: $total += $curRes->weight($part) * $curRes->awarded($part);
2049: $possible += $curRes->weight($part);
2050: }
2051: }
2052: $curRes = $iterator->next();
2053: }
2054: if ($total > $possible) {
2055: $total = $possible;
2056: }
2057: return ($total,$possible);
2058: }
2059: }
2060: return;
2061: }
2062:
2063: 1;
2064: __END__
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