1: # The LearningOnline Network with CAPA
2: # The LON-CAPA Homework handler
3: #
4: # $Id: lonhomework.pm,v 1.286 2007/11/20 17:53:22 albertel Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27:
28:
29: 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::drawimage();
51: use Apache::Constants qw(:common);
52: use Apache::loncommon();
53: use Apache::lonlocal;
54: use Time::HiRes qw( gettimeofday tv_interval );
55: use HTML::Entities();
56: use File::Copy();
57:
58: # FIXME - improve commenting
59:
60:
61: BEGIN {
62: &Apache::lonxml::register_insert();
63: }
64:
65:
66: =pod
67:
68: =item set_bubble_lines()
69:
70: Called at analysis time to set the bubble lines
71: hash for the problem.. This should be called in the
72: end_problemtype tag in analysis mode.
73:
74: We fetch the hash of part id counters from lonxml
75: and push them into analyze:{part_id.bubble_lines}.
76:
77: =cut
78:
79: sub set_bubble_lines {
80: my %bubble_counters = &Apache::lonxml::get_bubble_line_hash();
81:
82: foreach my $key (keys(%bubble_counters)) {
83: $Apache::lonhomework::analyze{"$key.bubble_lines"} =
84: $bubble_counters{"$key"};
85: }
86: }
87:
88: #
89: # Decides what targets to render for.
90: # Implicit inputs:
91: # Various session environment variables:
92: # request.state - published - is a /res/ resource
93: # uploaded - is a /uploaded/ resource
94: # contruct - is a /priv/ resource
95: # form.grade_target - a form parameter requesting a specific target
96: sub get_target {
97: &Apache::lonxml::debug("request.state = $env{'request.state'}");
98: if( defined($env{'form.grade_target'})) {
99: &Apache::lonxml::debug("form.grade_target= $env{'form.grade_target'}");
100: } else {
101: &Apache::lonxml::debug("form.grade_target <undefined>");
102: }
103: if (($env{'request.state'} eq "published") ||
104: ($env{'request.state'} eq "uploaded")) {
105: if ( defined($env{'form.grade_target'} )
106: && ($env{'form.grade_target'} eq 'tex')) {
107: return ($env{'form.grade_target'});
108: } elsif ( defined($env{'form.grade_target'} )
109: && ($Apache::lonhomework::viewgrades eq 'F' )) {
110: return ($env{'form.grade_target'});
111: } elsif ( $env{'form.grade_target'} eq 'webgrade'
112: && ($Apache::lonhomework::queuegrade eq 'F' )) {
113: return ($env{'form.grade_target'});
114: }
115: if ($env{'form.webgrade'} &&
116: ($Apache::lonhomework::modifygrades eq 'F'
117: || $Apache::lonhomework::queuegrade eq 'F' )) {
118: return ('grade','webgrade');
119: }
120: if ( defined($env{'form.submitted'}) &&
121: ( !defined($env{'form.newrandomization'}))) {
122: return ('grade', 'web');
123: } else {
124: return ('web');
125: }
126: } elsif ($env{'request.state'} eq "construct") {
127: if ( defined($env{'form.grade_target'}) ) {
128: return ($env{'form.grade_target'});
129: }
130: if ( defined($env{'form.preview'})) {
131: if ( defined($env{'form.submitted'})) {
132: return ('grade', 'web');
133: } else {
134: return ('web');
135: }
136: } else {
137: if ($env{'form.problemstate'} eq 'WEB_GRADE') {
138: #$env{'form.webgrade'} = 'yes';
139: return ('grade','webgrade','answer');
140: } elsif ( $env{'form.problemmode'} eq &mt('View') ||
141: $env{'form.problemmode'} eq &mt('Discard Edits and View')) {
142: if ( defined($env{'form.submitted'}) &&
143: (!defined($env{'form.resetdata'})) &&
144: (!defined($env{'form.newrandomization'}))) {
145: return ('grade', 'web','answer');
146: } else {
147: return ('web','answer');
148: }
149: } elsif ( $env{'form.problemmode'} eq &mt('Edit') ||
150: $env{'form.problemmode'} eq 'Edit') {
151: if ( $env{'form.submitted'} eq 'edit' ) {
152: if ( $env{'form.submit'} eq &mt('Save and View') ) {
153: return ('modified','web','answer');
154: } else {
155: return ('modified','no_output_web','edit');
156: }
157: } else {
158: return ('no_output_web','edit');
159: }
160: } else {
161: return ('web');
162: }
163: }
164: }
165: return ();
166: }
167:
168: sub setup_vars {
169: my ($target) = @_;
170: return ';'
171: # return ';$external::target='.$target.';';
172: }
173:
174: sub createmenu {
175: my ($which,$request)=@_;
176: if ($which eq 'grade') {
177: $request->print('<script language="JavaScript">
178: hwkmenu=window.open("/res/adm/pages/homeworkmenu.html","homeworkremote",
179: "height=350,width=150,menubar=no");
180: </script>');
181: }
182: }
183:
184: sub proctor_checked_in {
185: my ($slot_name,$slot,$type)=@_;
186: my @possible_proctors=split(",",$slot->{'proctor'});
187:
188: return 1 if (!@possible_proctors);
189:
190: my $key;
191: if ($type eq 'Task') {
192: my $version=$Apache::lonhomework::history{'resource.0.version'};
193: $key ="resource.$version.0.checkedin";
194: } elsif ($type eq 'problem') {
195: $key ='resource.0.checkedin';
196: }
197: # backward compatability, used to be username@domain,
198: # now is username:domain
199: my $who = $Apache::lonhomework::history{$key};
200: if ($who !~ /:/) {
201: $who =~ tr/@/:/;
202: }
203: foreach my $possible (@possible_proctors) {
204: if ($who eq $possible
205: && $Apache::lonhomework::history{$key.'.slot'} eq $slot_name) {
206: return 1;
207: }
208: }
209:
210: return 0;
211: }
212:
213: sub check_ip_acc {
214: my ($acc)=@_;
215: &Apache::lonxml::debug("acc is $acc");
216: if (!defined($acc) || $acc =~ /^\s*$/ || $acc =~/^\s*no\s*$/i) {
217: return 1;
218: }
219: my $allowed=0;
220: my $ip=$env{'request.host'} || $ENV{'REMOTE_ADDR'};
221:
222: my $name;
223: foreach my $pattern (split(',',$acc)) {
224: $pattern =~ s/^\s*//;
225: $pattern =~ s/\s*$//;
226: if ($pattern =~ /\*$/) {
227: #35.8.*
228: $pattern=~s/\*//;
229: if ($ip =~ /^\Q$pattern\E/) { $allowed=1; }
230: } elsif ($pattern =~ /(\d+\.\d+\.\d+)\.\[(\d+)-(\d+)\]$/) {
231: #35.8.3.[34-56]
232: my $low=$2;
233: my $high=$3;
234: $pattern=$1;
235: if ($ip =~ /^\Q$pattern\E/) {
236: my $last=(split(/\./,$ip))[3];
237: if ($last <=$high && $last >=$low) { $allowed=1; }
238: }
239: } elsif ($pattern =~ /^\*/) {
240: #*.msu.edu
241: $pattern=~s/\*//;
242: if (!defined($name)) {
243: use Socket;
244: my $netaddr=inet_aton($ip);
245: ($name)=gethostbyaddr($netaddr,AF_INET);
246: }
247: if ($name =~ /\Q$pattern\E$/i) { $allowed=1; }
248: } elsif ($pattern =~ /\d+\.\d+\.\d+\.\d+/) {
249: #127.0.0.1
250: if ($ip =~ /^\Q$pattern\E/) { $allowed=1; }
251: } else {
252: #some.name.com
253: if (!defined($name)) {
254: use Socket;
255: my $netaddr=inet_aton($ip);
256: ($name)=gethostbyaddr($netaddr,AF_INET);
257: }
258: if ($name =~ /\Q$pattern\E$/i) { $allowed=1; }
259: }
260: if ($allowed) { last; }
261: }
262: return $allowed;
263: }
264:
265: sub check_slot_access {
266: my ($id,$type)=@_;
267:
268: # does it pass normal muster
269: my ($status,$datemsg)=&check_access($id);
270:
271: my $useslots = &Apache::lonnet::EXT("resource.0.useslots");
272: if ($useslots ne 'resource' && $useslots ne 'map'
273: && $useslots ne 'map_map') {
274: return ($status,$datemsg);
275: }
276:
277: if ($status eq 'SHOW_ANSWER' ||
278: $status eq 'CLOSED' ||
279: $status eq 'INVALID_ACCESS' ||
280: $status eq 'UNAVAILABLE') {
281: return ($status,$datemsg);
282: }
283: if ($env{'request.state'} eq "construct") {
284: return ($status,$datemsg);
285: }
286:
287: if ($type eq 'Task') {
288: my $version=$Apache::lonhomework::history{'resource.version'};
289: if ($Apache::lonhomework::history{"resource.$version.0.checkedin"} &&
290: $Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass') {
291: return ('SHOW_ANSWER');
292: }
293: }
294:
295: my @slots=
296: (split(':',&Apache::lonnet::EXT("resource.0.availablestudent")),
297: split(':',&Apache::lonnet::EXT("resource.0.available")));
298:
299: # if (!@slots) {
300: # return ($status,$datemsg);
301: # }
302: my $slotstatus='NOT_IN_A_SLOT';
303: my ($returned_slot,$slot_name);
304: foreach my $slot (@slots) {
305: $slot =~ s/(^\s*|\s*$)//g;
306: &Apache::lonxml::debug("getting $slot");
307: my %slot=&Apache::lonnet::get_slot($slot);
308: &Apache::lonhomework::showhash(%slot);
309: if ($slot{'starttime'} < time &&
310: $slot{'endtime'} > time &&
311: &check_ip_acc($slot{'ip'})) {
312: &Apache::lonxml::debug("$slot is good");
313: $slotstatus='NEEDS_CHECKIN';
314: $returned_slot=\%slot;
315: $slot_name=$slot;
316: last;
317: }
318: }
319: if ($slotstatus eq 'NEEDS_CHECKIN' &&
320: &proctor_checked_in($slot_name,$returned_slot,$type)) {
321: &Apache::lonxml::debug("protoctor checked in");
322: $slotstatus='CAN_ANSWER';
323: }
324:
325: my ($is_correct,$got_grade,$checkedin);
326: if ($type eq 'Task') {
327: my $version=$Apache::lonhomework::history{'resource.0.version'};
328: $got_grade =
329: ($Apache::lonhomework::history{"resource.$version.0.status"}
330: =~ /^(?:pass|fail)$/);
331: $is_correct =
332: ($Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass'
333: || $Apache::lonhomework::history{"resource.0.solved"} =~ /^correct_/ );
334: $checkedin =
335: $Apache::lonhomework::history{"resource.$version.0.checkedin"};
336: } elsif ($type eq 'problem') {
337: $got_grade = 1;
338: $checkedin = $Apache::lonhomework::history{"resource.0.checkedin"};
339: $is_correct =
340: ($Apache::lonhomework::history{"resource.0.solved"} =~/^correct_/);
341: }
342:
343: &Apache::lonxml::debug(" slot is $slotstatus checkedin ($checkedin) got_grade ($got_grade) is_correct ($is_correct)");
344:
345: # no slot is currently open, and has been checked in for this version
346: # but hasn't got a grade, therefore must be awaiting a grade
347: if (!defined($slot_name)
348: && $checkedin
349: && !$got_grade) {
350: return ('WAITING_FOR_GRADE');
351: }
352:
353: # no slot is currently open, and has been checked in for this version
354: # previous slot is therefore CLOSED, so therefore the problem is
355: if (!defined($slot_name)
356: && $checkedin
357: && $type eq 'problem') {
358: return ('CLOSED',$datemsg);
359: }
360:
361: if ($slotstatus eq 'NOT_IN_A_SLOT'
362: && $checkedin ) {
363:
364: if ($got_grade) {
365: return ('SHOW_ANSWER');
366: } else {
367: return ('WAITING_FOR_GRADE');
368: }
369:
370: }
371:
372: if ( $is_correct) {
373: if ($type eq 'problem') {
374: return ($status);
375: }
376: return ('SHOW_ANSWER');
377: }
378:
379: if ( $status eq 'CANNOT_ANSWER' &&
380: ($slotstatus ne 'NEEDS_CHECKIN' && $slotstatus ne 'NOT_IN_A_SLOT')) {
381: return ($status,$datemsg);
382: }
383:
384: return ($slotstatus,$datemsg,$slot_name,$returned_slot);
385: }
386:
387: # JB, 9/24/2002: Any changes in this function may require a change
388: # in lonnavmaps::resource::getDateStatus.
389: sub check_access {
390: my ($id) = @_;
391: my $date ='';
392: my $status;
393: my $datemsg = '';
394: my $lastdate = '';
395: my $type;
396: my $passed;
397:
398: if ($env{'request.state'} eq "construct") {
399: if ($env{'form.problemstate'}) {
400: if ($env{'form.problemstate'} =~ /^CANNOT_ANSWER/) {
401: if ( ! ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct'
402: && &hide_problem_status())) {
403: return ('CANNOT_ANSWER',
404: &mt('is in this state due to author settings.'));
405: }
406: } else {
407: return ($env{'form.problemstate'},
408: &mt('is in this state due to author settings.'));
409: }
410: }
411: &Apache::lonxml::debug("in construction ignoring dates");
412: $status='CAN_ANSWER';
413: $datemsg=&mt('is in under construction');
414: # return ($status,$datemsg);
415: }
416:
417: &Apache::lonxml::debug("checking for part :$id:");
418: &Apache::lonxml::debug("time:".time);
419:
420: my ($symb)=&Apache::lonnet::whichuser();
421: &Apache::lonxml::debug("symb:".$symb);
422: #if ($env{'request.state'} ne "construct" && $symb ne '') {
423: if ($env{'request.state'} ne "construct") {
424: my $allowed=&check_ip_acc(&Apache::lonnet::EXT("resource.$id.acc"));
425: if (!$allowed && ($Apache::lonhomework::browse ne 'F')) {
426: $status='INVALID_ACCESS';
427: $date=&mt("can not be accessed from your location.");
428: return($status,$date);
429: }
430:
431: foreach my $temp ("opendate","duedate","answerdate") {
432: $lastdate = $date;
433: if ($temp eq 'duedate') {
434: $date = &due_date($id);
435: } else {
436: $date = &Apache::lonnet::EXT("resource.$id.$temp");
437: }
438:
439: my $thistype = &Apache::lonnet::EXT("resource.$id.$temp.type");
440: if ($thistype =~ /^(con_lost|no_such_host)/ ||
441: $date =~ /^(con_lost|no_such_host)/) {
442: $status='UNAVAILABLE';
443: $date=&mt("may open later.");
444: return($status,$date);
445: }
446: if ($thistype eq 'date_interval') {
447: if ($temp eq 'opendate') {
448: $date=&Apache::lonnet::EXT("resource.$id.duedate")-$date;
449: }
450: if ($temp eq 'answerdate') {
451: $date=&Apache::lonnet::EXT("resource.$id.duedate")+$date;
452: }
453: }
454: &Apache::lonxml::debug("found :$date: for :$temp:");
455: if ($date eq '') {
456: $date = &mt("an unknown date"); $passed = 0;
457: } elsif ($date eq 'con_lost') {
458: $date = &mt("an indeterminate date"); $passed = 0;
459: } else {
460: if (time < $date) { $passed = 0; } else { $passed = 1; }
461: $date = &Apache::lonlocal::locallocaltime($date);
462: }
463: if (!$passed) { $type=$temp; last; }
464: }
465: &Apache::lonxml::debug("have :$type:$passed:");
466: if ($passed) {
467: $status='SHOW_ANSWER';
468: $datemsg=$date;
469: } elsif ($type eq 'opendate') {
470: $status='CLOSED';
471: $datemsg = &mt("will open on")." $date";
472: } elsif ($type eq 'duedate') {
473: $status='CAN_ANSWER';
474: $datemsg = &mt("is due at")." $date";
475: } elsif ($type eq 'answerdate') {
476: $status='CLOSED';
477: $datemsg = &mt("was due on")." $lastdate".&mt(", and answers will be available on")." $date";
478: }
479: }
480: if ($status eq 'CAN_ANSWER' ||
481: (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED'))) {
482: #check #tries, and if correct.
483: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
484: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
485: if ( $tries eq '' ) { $tries = '0'; }
486: if ( $maxtries eq '' &&
487: $env{'request.state'} ne 'construct') { $maxtries = '2'; }
488: if ($maxtries && $tries >= $maxtries) { $status = 'CANNOT_ANSWER'; }
489: # if (correct and show prob status) or excused then CANNOT_ANSWER
490: if(($Apache::lonhomework::history{"resource.$id.solved"}=~/^correct/
491: &&
492: &show_problem_status())
493: ||
494: $Apache::lonhomework::history{"resource.$id.solved"}=~/^excused/) {
495: $status = 'CANNOT_ANSWER';
496: }
497: if ($status eq 'CANNOT_ANSWER'
498: && &show_answer_problem_status()) {
499: $status = 'SHOW_ANSWER';
500: }
501: }
502: if ($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER') {
503: my @interval=&Apache::lonnet::EXT("resource.$id.interval");
504: &Apache::lonxml::debug("looking for interval @interval");
505: if ($interval[0]) {
506: my $first_access=&Apache::lonnet::get_first_access($interval[1]);
507: &Apache::lonxml::debug("looking for accesstime $first_access");
508: if (!$first_access) {
509: $status='NOT_YET_VIEWED';
510: my $due_date = &due_date($id);
511: my $seconds_left = $due_date - time;
512: if ($seconds_left > $interval[0] || $due_date eq '') {
513: $seconds_left = $interval[0];
514: }
515: $datemsg=&seconds_to_human_length($seconds_left);
516: }
517: }
518: }
519:
520: #if (($status ne 'CLOSED') && ($Apache::lonhomework::type eq 'exam') &&
521: # (!$Apache::lonhomework::history{"resource.0.outtoken"})) {
522: # return ('UNCHECKEDOUT','needs to be checked out');
523: #}
524:
525:
526: &Apache::lonxml::debug("sending back :$status:$datemsg:");
527: if (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED')) {
528: &Apache::lonxml::debug("should be allowed to browse a resource when closed");
529: $status='CAN_ANSWER';
530: $datemsg=&mt('is closed but you are allowed to view it');
531: }
532:
533: return ($status,$datemsg);
534: }
535: # this should work exactly like the copy in lonnavmaps.pm
536: sub due_date {
537: my ($part_id,$symb,$udom,$uname)=@_;
538: my $date;
539: my @interval= &Apache::lonnet::EXT("resource.$part_id.interval",$symb,
540: $udom,$uname);
541: &Apache::lonxml::debug("looking for interval $part_id $symb @interval");
542: my $due_date= &Apache::lonnet::EXT("resource.$part_id.duedate",$symb,
543: $udom,$uname);
544: &Apache::lonxml::debug("looking for due_date $part_id $symb $due_date");
545: if ($interval[0] =~ /\d+/) {
546: my $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
547: &Apache::lonxml::debug("looking for first_access $first_access ($interval[1])");
548: if (defined($first_access)) {
549: my $interval = $first_access+$interval[0];
550: $date = (!$due_date || $interval < $due_date) ? $interval
551: : $due_date;
552: } else {
553: $date = $due_date;
554: }
555: } else {
556: $date = $due_date;
557: }
558: return $date
559: }
560:
561: sub seconds_to_human_length {
562: my ($length)=@_;
563:
564: my $seconds=$length%60; $length=int($length/60);
565: my $minutes=$length%60; $length=int($length/60);
566: my $hours=$length%24; $length=int($length/24);
567: my $days=$length;
568:
569: my $timestr;
570: if ($days > 0) { $timestr.=&mt('[quant,_1,day]',$days); }
571: if ($hours > 0) { $timestr.=($timestr?", ":"").
572: &mt('[quant,_1,hour]',$hours); }
573: if ($minutes > 0) { $timestr.=($timestr?", ":"").
574: &mt('[quant,_1,minute]',$minutes); }
575: if ($seconds > 0) { $timestr.=($timestr?", ":"").
576: &mt('[quant,_1,second]',$seconds); }
577: return $timestr;
578: }
579:
580: sub showhash {
581: my (%hash) = @_;
582: &showhashsubset(\%hash,'.');
583: return '';
584: }
585:
586: sub showarray {
587: my ($array)=@_;
588: my $string="(";
589: foreach my $elm (@{ $array }) {
590: if (ref($elm) eq 'ARRAY') {
591: $string.=&showarray($elm);
592: } elsif (ref($elm) eq 'HASH') {
593: $string.= "HASH --- \n<br />";
594: $string.= &showhashsubset($elm,'.');
595: } else {
596: $string.="$elm,"
597: }
598: }
599: chop($string);
600: $string.=")";
601: return $string;
602: }
603:
604: sub showhashsubset {
605: my ($hash,$keyre) = @_;
606: my $resultkey;
607: foreach $resultkey (sort keys %$hash) {
608: if ($resultkey !~ /$keyre/) { next; }
609: if (ref($$hash{$resultkey}) eq 'ARRAY' ) {
610: &Apache::lonxml::debug("$resultkey ---- ".
611: &showarray($$hash{$resultkey}));
612: } elsif (ref($$hash{$resultkey}) eq 'HASH' ) {
613: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
614: &showhashsubset($$hash{$resultkey},'.');
615: } else {
616: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
617: }
618: }
619: &Apache::lonxml::debug("\n<br />restored values^</br>\n");
620: return '';
621: }
622:
623: sub setuppermissions {
624: $Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$env{'request.filename'});
625: my $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'});
626: if (! $viewgrades &&
627: exists($env{'request.course.sec'}) &&
628: $env{'request.course.sec'} !~ /^\s*$/) {
629: $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'}.
630: '/'.$env{'request.course.sec'});
631: }
632: $Apache::lonhomework::viewgrades = $viewgrades;
633:
634: if ($Apache::lonhomework::browse eq 'F' &&
635: $env{'form.devalidatecourseresdata'} eq 'on') {
636: my (undef,$courseid) = &Apache::lonnet::whichuser();
637: &Apache::lonnet::devalidatecourseresdata($env{"course.$courseid.num"},
638: $env{"course.$courseid.domain"});
639: }
640:
641: my $modifygrades = &Apache::lonnet::allowed('mgr',$env{'request.course.id'});
642: if (! $modifygrades &&
643: exists($env{'request.course.sec'}) &&
644: $env{'request.course.sec'} !~ /^\s*$/) {
645: $modifygrades =
646: &Apache::lonnet::allowed('mgr',$env{'request.course.id'}.
647: '/'.$env{'request.course.sec'});
648: }
649: $Apache::lonhomework::modifygrades = $modifygrades;
650:
651: my $queuegrade = &Apache::lonnet::allowed('mqg',$env{'request.course.id'});
652: if (! $queuegrade &&
653: exists($env{'request.course.sec'}) &&
654: $env{'request.course.sec'} !~ /^\s*$/) {
655: $queuegrade =
656: &Apache::lonnet::allowed('qgr',$env{'request.course.id'}.
657: '/'.$env{'request.course.sec'});
658: }
659: $Apache::lonhomework::queuegrade = $queuegrade;
660: return '';
661: }
662:
663: sub unset_permissions {
664: undef($Apache::lonhomework::queuegrade);
665: undef($Apache::lonhomework::modifygrades);
666: undef($Apache::lonhomework::viewgrades);
667: undef($Apache::lonhomework::browse);
668: }
669:
670: sub setupheader {
671: my $request=$_[0];
672: &Apache::loncommon::content_type($request,'text/html');
673: if (!$Apache::lonxml::debug && ($ENV{'REQUEST_METHOD'} eq 'GET')) {
674: &Apache::loncommon::no_cache($request);
675: }
676: # $request->set_last_modified(&Apache::lonnet::metadata($request->uri,
677: # 'lastrevisiondate'));
678: $request->send_http_header;
679: return OK if $request->header_only;
680: return ''
681: }
682:
683: sub handle_save_or_undo {
684: my ($request,$problem,$result) = @_;
685: my $file = &Apache::lonnet::filelocation("",$request->uri);
686: my $filebak =$file.".bak";
687: my $filetmp =$file.".tmp";
688: my $error=0;
689: if ($env{'form.Undo'} eq &mt('undo')) {
690: my $error=0;
691: if (!&File::Copy::copy($file,$filetmp)) { $error=1; }
692: if ((!$error) && (!&File::Copy::copy($filebak,$file))) { $error=1; }
693: if ((!$error) && (!&File::Copy::move($filetmp,$filebak))) { $error=1; }
694: if (!$error) {
695: &Apache::lonxml::info("<p><b>".
696: &mt("Undid changes, Switched [_1] and [_2]",
697: '<span class="LC_filename">'.$filebak.
698: '</span>',
699: '<span class="LC_filename">'.$file.
700: '</span>')."</b></p>");
701: } else {
702: &Apache::lonxml::info("<p><span class=\"LC_error\">".
703: &mt("Unable to undo, unable to switch [_1] and [_2]",
704: '<span class="LC_filename">'.
705: $filebak.'</span>',
706: '<span class="LC_filename">'.
707: $file.'</span>')."</span></p>");
708: $error=1;
709: }
710: } else {
711: &Apache::lonnet::correct_line_ends($result);
712: my $fs=Apache::File->new(">$filebak");
713: if (defined($fs)) {
714: print $fs $$problem;
715: &Apache::lonxml::info("<b>".&mt("Making Backup to [_1]",
716: '<span class="LC_filename">'.
717: $filebak.'</span>').
718: "</b>");
719: } else {
720: &Apache::lonxml::info("<span class=\"LC_error\">".
721: &mt("Unable to make backup [_1]",
722: '<span class="LC_filename">'.
723: $filebak.'</span>')."</span>");
724: $error=2;
725: }
726: my $fh=Apache::File->new(">$file");
727: if (defined($fh)) {
728: print $fh $$result;
729: &Apache::lonxml::info("<b>".&mt("Saving Modifications to [_1]",
730: '<span class="LC_filename">'.
731: $file.'</span>' )."</b>");
732: } else {
733: &Apache::lonxml::info('<span class="LC_error">'.
734: &mt("Unable to write to [_1]",
735: '<span class="LC_filename">'.
736: $file.'</span>').
737: '</span>');
738: $error|=4;
739: }
740: }
741: return $error;
742: }
743:
744: sub analyze_header {
745: my ($request) = @_;
746: my $result =
747: &Apache::loncommon::start_page('Analyzing a problem',undef);
748:
749: $result .=
750: &Apache::lonxml::message_location().'
751: <form name="lonhomework" method="POST" action="'.
752: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
753: &Apache::structuretags::remember_problem_state().'
754: <div class="LC_edit_problem_analyze_header">
755: <input type="submit" name="problemmode" value="'.&mt("EditXML").'" />
756: <input type="submit" name="problemmode" value="'.&mt('Edit').'" />
757: <hr class="LC_edit_problem_divide" />
758:
759: <input type="submit" name="submit" value="'.&mt("View").'" />
760: <hr class="LC_edit_problem_divide" />
761: </div>
762: </form>';
763: &Apache::lonxml::add_messages(\$result);
764: $request->print($result);
765: $request->rflush();
766: }
767:
768: sub analyze_footer {
769: my ($request) = @_;
770: $request->print(&Apache::loncommon::end_page());
771: $request->rflush();
772: }
773:
774: sub analyze {
775: my ($request,$file) = @_;
776: &Apache::lonxml::debug("Analyze");
777: my $result;
778: my %overall;
779: my %seedexample;
780: my %allparts;
781: my $rndseed=$env{'form.rndseed'};
782: &analyze_header($request);
783: my %prog_state=
784: &Apache::lonhtmlcommon::Create_PrgWin($request,&mt('Analyze Progress'),
785: &mt('Getting Problem Variants'),
786: $env{'form.numtoanalyze'},
787: 'inline',undef);
788: for(my $i=1;$i<$env{'form.numtoanalyze'}+1;$i++) {
789: &Apache::lonhtmlcommon::Increment_PrgWin($request,\%prog_state,
790: &mt('last problem'));
791: if (&Apache::loncommon::connection_aborted($request)) { return; }
792: my $thisseed=$i+$rndseed;
793: my $subresult=&Apache::lonnet::ssi($request->uri,
794: ('grade_target' => 'analyze'),
795: ('rndseed' => $thisseed));
796: (my $garbage,$subresult)=split(/_HASH_REF__/,$subresult,2);
797: my %analyze=&Apache::lonnet::str2hash($subresult);
798: my @parts;
799: if (defined(@{ $analyze{'parts'} })) {
800: @parts=@{ $analyze{'parts'} };
801: }
802: foreach my $part (@parts) {
803: if (!exists($allparts{$part})) {$allparts{$part}=1;};
804: if ($analyze{$part.'.type'} eq 'numericalresponse' ||
805: $analyze{$part.'.type'} eq 'stringresponse' ||
806: $analyze{$part.'.type'} eq 'formularesponse' ) {
807: foreach my $name (keys(%{ $analyze{$part.'.answer'} })) {
808: my $i=0;
809: foreach my $answer_part (@{ $analyze{$part.'.answer'}{$name} }) {
810: push( @{ $overall{$part.'.answer'}[$i] },
811: $answer_part);
812: my $concatanswer= join("\0",@{ $answer_part });
813: if (($concatanswer eq '') || ($concatanswer=~/^\@/)) {
814: $answer_part = ['<span class="LC_error">'.&mt('Error').'</span>'];
815: }
816: $seedexample{join("\0",$part,$i,@{$answer_part})}=
817: $thisseed;
818: $i++;
819: }
820: }
821: if (!keys(%{ $analyze{$part.'.answer'} })) {
822: my $answer_part =
823: ['<span class="LC_error">'.&mt('Error').'</span>'];
824: $seedexample{join("\0",$part,0,@{$answer_part})}=
825: $thisseed;
826: push( @{ $overall{$part.'.answer'}[0] },
827: $answer_part);
828: }
829: }
830: }
831: }
832: &Apache::lonhtmlcommon::Update_PrgWin($request,\%prog_state,
833: &mt('Analyzing Results'));
834: $request->print('<hr class="LC_edit_problem_divide" />'.&mt('List of possible answers').': ');
835: foreach my $part (sort(keys(%allparts))) {
836: if (defined(@{ $overall{$part.'.answer'} })) {
837: for (my $i=0;$i<scalar(@{ $overall{$part.'.answer'} });$i++) {
838: my $num_cols=scalar(@{ $overall{$part.'.answer'}[$i][0] });
839: $request->print('<table class="thinborder"><tr><th colspan="'.($num_cols+1).'">'.&mt('Part').' '.$part);
840: if (scalar(@{ $overall{$part.'.answer'} }) > 1) {
841: $request->print(&mt(' Answer [_1]',$i+1));
842: }
843: $request->print('</th></tr>');
844: my %frequency;
845: foreach my $answer (sort {$a->[0] <=> $b->[0]} (@{ $overall{$part.'.answer'}[$i] })) {
846: $frequency{join("\0",@{ $answer })}++;
847: }
848: $request->print('<tr><th colspan="'.($num_cols).'">'.&mt('Answer').'</th><th>'.&mt('Frequency').'<br />('
849: .&mt('click for example').')</th></tr>');
850: foreach my $answer (sort {(split("\0",$a))[0] <=> (split("\0",$b))[0]} (keys(%frequency))) {
851: $request->print('<tr><td class="center">'.
852: join('</td><td class="center">',split("\0",$answer)).
853: '</td><td class="center"><a href="'.$request->uri.'?rndseed='.$seedexample{join("\0",$part,$i,$answer)}.'">'.$frequency{$answer}.
854: '</a></td></tr>');
855: }
856: $request->print('</table>');
857: }
858: } else {
859: $request->print('<p>'.&mt('Response').' '.$part.' '.
860: &mt('is not analyzable at this time').'</p>');
861: }
862: }
863: if (scalar(keys(%allparts)) == 0 ) {
864: $request->print('<p>'.&mt('Found no analyzable responses in this problem, currently only Numerical, Formula and String response styles are supported.').'</p>');
865: }
866: &Apache::lonhtmlcommon::Close_PrgWin($request,\%prog_state);
867: &analyze_footer($request);
868: &Apache::lonhomework::showhash(%overall);
869: return $result;
870: }
871:
872: {
873: my $show_problem_status;
874: sub reset_show_problem_status {
875: undef($show_problem_status);
876: }
877:
878: sub set_show_problem_status {
879: my ($new_status) = @_;
880: $show_problem_status = lc($new_status);
881: }
882:
883: sub hide_problem_status {
884: return ($show_problem_status eq 'no'
885: || $show_problem_status eq 'no_feedback_ever');
886: }
887:
888: sub show_problem_status {
889: return ($show_problem_status eq 'yes'
890: || $show_problem_status eq 'answer'
891: || $show_problem_status eq '');
892: }
893:
894: sub show_some_problem_status {
895: return ($show_problem_status eq 'no');
896: }
897:
898: sub show_no_problem_status {
899: return ($show_problem_status eq 'no_feedback_ever');
900: }
901:
902: sub show_answer_problem_status {
903: return ($show_problem_status eq 'answer');
904: }
905: }
906:
907: sub editxmlmode {
908: my ($request,$file) = @_;
909: my $result;
910: my $problem=&Apache::lonnet::getfile($file);
911: if ($problem eq -1) {
912: &Apache::lonxml::error("<b> ".&mt('Unable to find').
913: " <i>$file</i></b>");
914: $problem='';
915: }
916: if (defined($env{'form.editxmltext'}) || defined($env{'form.Undo'})) {
917: my $error=&handle_save_or_undo($request,\$problem,
918: \$env{'form.editxmltext'});
919: if (!$error) { $problem=&Apache::lonnet::getfile($file); }
920: }
921: &Apache::lonhomework::showhashsubset(\%env,'^form');
922: if ( $env{'form.submit'} eq &mt('Save and View') ) {
923: &Apache::lonhomework::showhashsubset(\%env,'^form');
924: $env{'form.problemmode'}='View';
925: &renderpage($request,$file);
926: } else {
927: my ($rows,$cols) = &Apache::edit::textarea_sizes(\$problem);
928: my $xml_help = '<table><tr><td>'.
929: &Apache::loncommon::helpLatexCheatsheet("Problem_Editor_XML_Index",
930: "Problem Editing Help").
931: '</td><td>'.
932: &Apache::loncommon::help_open_menu(undef,undef,5,'Authoring').
933: '</td></tr></table>';
934: if ($cols > 80) { $cols = 80; }
935: if ($cols < 70) { $cols = 70; }
936: if ($rows < 20) { $rows = 20; }
937: my $js =
938: &Apache::edit::js_change_detection().
939: &Apache::loncommon::resize_textarea_js();
940: my $only_body = ($env{'environment.remote'} eq 'off')? 0 : 1;
941: my $start_page =
942: &Apache::loncommon::start_page(&mt("EditXML [_1]",$file),$js,
943: {'no_auto_mt_title' => 1,
944: 'only_body' => $only_body,
945: 'add_entries' => {
946: 'onresize' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
947: 'onload' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
948: }});
949:
950: $result.=$start_page.
951: &renderpage($request,$file,['no_output_web'],1).
952: '<form '.&Apache::edit::form_change_detection().' name="lonhomework" method="POST" action="'.
953: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
954: &Apache::structuretags::remember_problem_state().'
955: <div class="LC_edit_problem_editxml_header">
956: <table class="LC_edit_problem_header_title"><tr><td>
957: '.&mt('Problem Editing').&Apache::loncommon::help_open_topic('Problem_Editor_XML_Index').'
958: </td><td align="right">
959: '.&Apache::loncommon::helpLatexCheatsheet().'
960: </td></tr>
961: </table>
962: <div class="LC_edit_problem_discards">
963: <input type="hidden" name="problemmode" value="'.&mt('EditXML').'" />
964: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
965: <input type="submit" '.&Apache::edit::submit_ask_anyway().'name="problemmode" accesskey="e" value="'.&mt('Edit').'" />
966: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
967: </div>
968: <div class="LC_edit_problem_saves">
969: <input type="submit" name="submit" accesskey="s" value="'.&mt('Save').'" />
970: <input type="submit" name="submit" accesskey="v" value="'.&mt('Save and View').'" />
971: </div>
972: <hr class="LC_edit_problem_divide" />
973: '.&Apache::lonxml::message_location().'
974: </div>
975: ' . '
976: <textarea '.&Apache::edit::element_change_detection().
977: ' rows="'.$rows.'" cols="'.$cols.'" style="width:100%" '.
978: ' name="editxmltext" id="LC_editxmltext">'.
979: &HTML::Entities::encode($problem,'<>&"').'</textarea>
980: <div id="LC_aftertextarea">
981: </div>
982: </form>'.&Apache::loncommon::end_page();
983: &Apache::lonxml::add_messages(\$result);
984: $request->print($result);
985: }
986: return '';
987: }
988:
989: #
990: # Render the page in whatever target desired.
991: #
992: sub renderpage {
993: my ($request,$file,$targets,$return_string) = @_;
994:
995: my @targets = @{$targets || [&get_target()]};
996: &Apache::lonhomework::showhashsubset(\%env,'form.');
997: &Apache::lonxml::debug("Running targets ".join(':',@targets));
998:
999: my $overall_result;
1000: foreach my $target (@targets) {
1001: # FIXME need to do something intelligent when a problem goes
1002: # from viewable to not viewable due to map conditions
1003: #&setuppermissions();
1004: #if ( $Apache::lonhomework::browse ne '2'
1005: # && $Apache::lonhomework::browse ne 'F' ) {
1006: # $request->print(" You most likely shouldn't see me.");
1007: #}
1008: #my $t0 = [&gettimeofday()];
1009: my $output=1;
1010: if ($target eq 'no_output_web') {
1011: $target = 'web'; $output=0;
1012: }
1013: my $problem=&Apache::lonnet::getfile($file);
1014: my $result;
1015: if ($problem eq -1) {
1016: $problem='';
1017: my $filename=(split('/',$file))[-1];
1018: my $error =
1019: "<b> ".&mt('Unable to find [_1]',
1020: ' <span class="LC_filename">'.$filename.'</span>')
1021: ."</b>";
1022: $result.=
1023: &Apache::loncommon::simple_error_page($request,'Not available',
1024: $error);
1025: return;
1026: }
1027:
1028: my %mystyle;
1029: if ($target eq 'analyze') { %Apache::lonhomework::analyze=(); }
1030: if ($target eq 'answer') { &showhash(%Apache::lonhomework::history); }
1031: if ($target eq 'web') {&Apache::lonhomework::showhashsubset(\%env,'^form');}
1032:
1033: &Apache::lonxml::debug("Should be parsing now");
1034: $result .= &Apache::lonxml::xmlparse($request, $target, $problem,
1035: &setup_vars($target),%mystyle);
1036: &finished_parsing();
1037: if (!$output) { $result = ''; }
1038: #$request->print("Result follows:");
1039: if ($target eq 'modified') {
1040: &handle_save_or_undo($request,\$problem,\$result);
1041: } else {
1042: if ($target eq 'analyze') {
1043: $result=&Apache::lonnet::hashref2str(\%Apache::lonhomework::analyze);
1044: undef(%Apache::lonhomework::analyze);
1045: }
1046: #my $td=&tv_interval($t0);
1047: #if ( $Apache::lonxml::debug) {
1048: #$result =~ s:</body>::;
1049: #$result.="<br />Spent $td seconds processing target $target\n</body>";
1050: #}
1051: # $request->print($result);
1052: $overall_result.=$result;
1053: # $request->rflush();
1054: }
1055: #$request->print(":Result ends");
1056: #my $td=&tv_interval($t0);
1057: }
1058: if (!$return_string) {
1059: &Apache::lonxml::add_messages(\$overall_result);
1060: $request->print($overall_result);
1061: $request->rflush();
1062: } else {
1063: return $overall_result;
1064: }
1065: }
1066:
1067: sub finished_parsing {
1068: undef($Apache::lonhomework::parsing_a_problem);
1069: undef($Apache::lonhomework::parsing_a_task);
1070: }
1071:
1072: sub get_template_list {
1073: my ($extension) = @_;
1074: my $result;
1075: my @allnames;
1076: &Apache::lonxml::debug("Looking for :$extension:");
1077: my $glob_extension = $extension;
1078: if ($extension eq 'survey' || $extension eq 'exam') {
1079: $glob_extension = 'problem';
1080: }
1081: my @files = glob($Apache::lonnet::perlvar{'lonIncludes'}.
1082: '/templates/*.'.$glob_extension);
1083: @files = map {[$_,&mt(&Apache::lonnet::metadata($_, 'title'))]} (@files);
1084: @files = sort {$a->[1] cmp $b->[1]} (@files);
1085: foreach my $file (@files) {
1086: next if ($file->[1] !~ /\S/);
1087: $result .=
1088: '<label><input type="radio" name="template" value="'.$file->[0].'" />'.
1089: $file->[1].'</label><br />';
1090: }
1091: return $result;
1092: }
1093:
1094: sub newproblem {
1095: my ($request) = @_;
1096:
1097: if ($env{'form.template'}) {
1098: my $file = $env{'form.template'};
1099: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1100: &File::Copy::copy($file,$dest);
1101: &renderpage($request,$dest);
1102: return;
1103: }
1104:
1105: my ($extension) = ($request->uri =~ m/\.(\w+)$/);
1106: &Apache::lonxml::debug("Looking for :$extension:");
1107: my $templatelist=&get_template_list($extension);
1108: if ($env{'form.newfile'} && !$templatelist) {
1109: # no templates found
1110: my $templatefilename =
1111: $request->dir_config('lonIncludes').'/templates/blank.'.$extension;
1112: &Apache::lonxml::debug("$templatefilename");
1113: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1114: &File::Copy::copy($templatefilename,$dest);
1115: &renderpage($request,$dest);
1116: } else {
1117: my $url=&HTML::Entities::encode($request->uri,'<>&"');
1118: my $shownurl=$url;
1119: $shownurl=~s-^/~-/priv/-;
1120: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1121: my $errormsg;
1122: my $instructions;
1123: my $start_page =
1124: &Apache::loncommon::start_page("Create New $extension");
1125: $request->print("
1126: $start_page
1127: <h1>".&mt("Creating a new $extension resource.")."</h1>
1128: $errormsg
1129: ".&mt("The requested file [_1] currently does not exist.",
1130: "<tt>$shownurl</tt>")."
1131: <p>
1132: <b>
1133: ".&mt("To create a new $extension, select a template from the".
1134: " list below. Then click on the \"Create $extension\" button.")."</b>
1135: </p><form action=\"$url\" method=\"POST\">");
1136:
1137: if (defined($templatelist)) {
1138: $request->print($templatelist);
1139: }
1140: $request->print('<br /><input type="submit" name="newfile" value="'.
1141: &mt("Create $extension").'" />');
1142: $request->print("</form></p>".&Apache::loncommon::end_page());
1143: }
1144: return;
1145: }
1146:
1147: sub update_construct_style {
1148: if ($env{'request.state'} eq "construct"
1149: && $env{'form.problemmode'} eq &mt('View')
1150: && defined($env{'form.submitted'})
1151: && !defined($env{'form.resetdata'})
1152: && !defined($env{'form.newrandomization'})) {
1153: if ((!$env{'form.style_file'} && $env{'construct.style'})
1154: ||$env{'form.clear_style_file'}) {
1155: &Apache::lonnet::delenv('construct\\.style');
1156: } elsif ($env{'form.style_file'}
1157: && $env{'construct.style'} ne $env{'form.style_file'}) {
1158: &Apache::lonnet::appenv('construct.style' =>
1159: $env{'form.style_file'});
1160: }
1161: }
1162: }
1163:
1164:
1165: sub handler {
1166: #my $t0 = [&gettimeofday()];
1167: my $request=$_[0];
1168: $Apache::lonxml::request=$request;
1169: $Apache::lonxml::debug=$env{'user.debug'};
1170: $env{'request.uri'}=$request->uri;
1171: &setuppermissions();
1172: # some times multiple problemmodes are submitted, need to select
1173: # the last one
1174: if ( defined($env{'form.problemmode'}) && ref($env{'form.problemmode'}) ) {
1175: my $mode=$env{'form.problemmode'}->[-1];
1176: undef $env{'form.problemmode'};
1177: $env{'form.problemmode'}=$mode;
1178: }
1179:
1180: my $file=&Apache::lonnet::filelocation("",$request->uri);
1181:
1182: #check if we know where we are
1183: if ($env{'request.course.fn'} && !&Apache::lonnet::symbread()) {
1184: # if we are browsing we might not be able to know where we are
1185: if ($Apache::lonhomework::browse ne 'F' &&
1186: $env{'request.state'} ne "construct") {
1187: #should know where we are, so ask
1188: &unset_permissions();
1189: $request->internal_redirect('/adm/ambiguous');
1190: return OK;
1191: }
1192: }
1193: if (&setupheader($request)) {
1194: &unset_permissions();
1195: return OK;
1196: }
1197: &Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:$Apache::lonhomework::modifygrades:$Apache::lonhomework::queuegrade");
1198: &Apache::lonxml::debug("Problem Mode ".$env{'form.problemmode'});
1199: my ($symb) = &Apache::lonnet::whichuser();
1200: &Apache::lonxml::debug('symb is '.$symb);
1201: if ($env{'request.state'} eq "construct") {
1202: if ( -e $file ) {
1203: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1204: ['problemmode']);
1205: if (!(defined $env{'form.problemmode'})) {
1206: #first visit to problem in construction space
1207: $env{'form.problemmode'}='View';
1208: &renderpage($request,$file);
1209: } elsif ($env{'form.problemmode'} eq &mt('EditXML') ||
1210: $env{'form.problemmode'} eq 'EditXML') {
1211: &editxmlmode($request,$file);
1212: } elsif ($env{'form.problemmode'} eq &mt('Calculate answers')) {
1213: &analyze($request,$file);
1214: } else {
1215: &update_construct_style();
1216: &renderpage($request,$file);
1217: }
1218: } else {
1219: # requested file doesn't exist in contruction space
1220: &newproblem($request);
1221: }
1222: } else {
1223: # just render the page normally outside of construction space
1224: &Apache::lonxml::debug("not construct");
1225: &renderpage($request,$file);
1226: }
1227: #my $td=&tv_interval($t0);
1228: #&Apache::lonxml::debug("Spent $td seconds processing");
1229: # always turn off debug messages
1230: $Apache::lonxml::debug=0;
1231: &unset_permissions();
1232: return OK;
1233:
1234: }
1235:
1236: 1;
1237: __END__
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