Annotation of loncom/homework/lonhomework.pm, revision 1.215
1.63 albertel 1: # The LearningOnline Network with CAPA
1.52 albertel 2: # The LON-CAPA Homework handler
1.63 albertel 3: #
1.215 ! raeburn 4: # $Id: lonhomework.pm,v 1.214 2005/07/14 02:40:10 albertel Exp $
1.63 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
1.159 www 27:
1.1 albertel 28:
29: package Apache::lonhomework;
30: use strict;
1.73 albertel 31: use Apache::style();
32: use Apache::lonxml();
1.204 albertel 33: use Apache::lonnet;
1.73 albertel 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();
1.83 albertel 41: use Apache::caparesponse();
42: use Apache::radiobuttonresponse();
43: use Apache::optionresponse();
44: use Apache::imageresponse();
45: use Apache::essayresponse();
46: use Apache::externalresponse();
1.106 albertel 47: use Apache::rankresponse();
1.107 albertel 48: use Apache::matchresponse();
1.137 albertel 49: use Apache::chemresponse();
1.169 albertel 50: use Apache::drawimage();
1.26 www 51: use Apache::Constants qw(:common);
1.73 albertel 52: use HTML::Entities();
1.83 albertel 53: use Apache::loncommon();
1.146 albertel 54: use Apache::lonlocal;
1.179 albertel 55: use Time::HiRes qw( gettimeofday tv_interval );
1.188 foxr 56: use Apache::lonnet();
57:
1.189 albertel 58: # FIXME - improve commenting
1.188 foxr 59:
1.43 albertel 60:
1.69 harris41 61: BEGIN {
1.145 albertel 62: &Apache::lonxml::register_insert();
1.43 albertel 63: }
64:
1.188 foxr 65:
66: #
1.189 albertel 67: # Decides what targets to render for.
1.188 foxr 68: # Implicit inputs:
69: # Various session environment variables:
1.189 albertel 70: # request.state - published - is a /res/ resource
71: # uploaded - is a /uploaded/ resource
72: # contruct - is a /priv/ resource
73: # form.grade_target - a form parameter requesting a specific target
1.5 albertel 74: sub get_target {
1.204 albertel 75: &Apache::lonxml::debug("request.state = $env{'request.state'}");
76: if( defined($env{'form.grade_target'})) {
77: &Apache::lonxml::debug("form.grade_target= $env{'form.grade_target'}");
1.188 foxr 78: } else {
1.189 albertel 79: &Apache::lonxml::debug("form.grade_target <undefined>");
1.188 foxr 80: }
1.204 albertel 81: if (($env{'request.state'} eq "published") ||
82: ($env{'request.state'} eq "uploaded")) {
83: if ( defined($env{'form.grade_target'} )
84: && ($env{'form.grade_target'} eq 'tex')) {
85: return ($env{'form.grade_target'});
86: } elsif ( defined($env{'form.grade_target'} )
1.145 albertel 87: && ($Apache::lonhomework::viewgrades eq 'F' )) {
1.207 albertel 88: return ($env{'form.grade_target'});
89: }
90: if ($env{'form.webgrade'} &&
91: $Apache::lonhomework::modifygrades eq 'F') {
92: return ('grade','webgrade');
1.145 albertel 93: }
1.204 albertel 94: if ( defined($env{'form.submitted'}) &&
95: ( !defined($env{'form.resetdata'})) &&
96: ( !defined($env{'form.newrandomization'}))) {
1.145 albertel 97: return ('grade', 'web');
98: } else {
99: return ('web');
100: }
1.204 albertel 101: } elsif ($env{'request.state'} eq "construct") {
102: if ( defined($env{'form.grade_target'}) ) {
103: return ($env{'form.grade_target'});
1.145 albertel 104: }
1.204 albertel 105: if ( defined($env{'form.preview'})) {
106: if ( defined($env{'form.submitted'})) {
1.145 albertel 107: return ('grade', 'web');
108: } else {
109: return ('web');
110: }
111: } else {
1.204 albertel 112: if ( $env{'form.problemmode'} eq &mt('View') ||
113: $env{'form.problemmode'} eq &mt('Discard Edits and View')) {
114: if ( defined($env{'form.submitted'}) &&
115: (!defined($env{'form.resetdata'})) &&
116: (!defined($env{'form.newrandomization'}))) {
1.145 albertel 117: return ('grade', 'web','answer');
118: } else {
119: return ('web','answer');
120: }
1.204 albertel 121: } elsif ( $env{'form.problemmode'} eq &mt('Edit') ||
122: $env{'form.problemmode'} eq 'Edit') {
123: if ( $env{'form.submitted'} eq 'edit' ) {
124: if ( $env{'form.submit'} eq &mt('Submit Changes and View') ) {
1.145 albertel 125: return ('modified','web','answer');
126: } else {
1.211 albertel 127: return ('modified','no_output_web','edit');
1.145 albertel 128: }
129: } else {
1.211 albertel 130: return ('no_output_web','edit');
1.145 albertel 131: }
132: } else {
133: return ('web');
134: }
135: }
1.15 albertel 136: }
1.145 albertel 137: return ();
1.5 albertel 138: }
139:
1.3 albertel 140: sub setup_vars {
1.145 albertel 141: my ($target) = @_;
142: return ';'
1.11 albertel 143: # return ';$external::target='.$target.';';
1.2 albertel 144: }
145:
146: sub send_header {
1.145 albertel 147: my ($request)= @_;
148: $request->print(&Apache::lontexconvert::header());
1.204 albertel 149: # $request->print('<form name='.$env{'form.request.prefix'}.'lonhomework method="POST" action="'.$request->uri.'">');
1.2 albertel 150: }
151:
1.36 albertel 152: sub createmenu {
1.145 albertel 153: my ($which,$request)=@_;
154: if ($which eq 'grade') {
155: $request->print('<script language="JavaScript">
1.91 albertel 156: hwkmenu=window.open("/res/adm/pages/homeworkmenu.html","homeworkremote",
1.52 albertel 157: "height=350,width=150,menubar=no");
158: </script>');
1.145 albertel 159: }
1.36 albertel 160: }
161:
1.2 albertel 162: sub send_footer {
1.145 albertel 163: my ($request)= @_;
1.16 albertel 164: # $request->print('</form>');
1.145 albertel 165: $request->print(&Apache::lontexconvert::footer());
1.2 albertel 166: }
167:
1.200 albertel 168: sub proctor_checked_in {
1.207 albertel 169: my ($slot_name,$slot)=@_;
1.202 albertel 170: my @allowed=split(",",$slot->{'proctor'});
1.208 albertel 171: my $version=$Apache::lonhomework::history{'resource.version'};
1.202 albertel 172: foreach my $possible (@allowed) {
1.208 albertel 173: if ($Apache::lonhomework::history{"resource.$version.checkedin"} eq
174: $possible &&
175: $Apache::lonhomework::history{"resource.$version.checkedin.slot"}
176: eq $slot_name) {
1.202 albertel 177: return 1;
178: }
179: }
1.200 albertel 180: return 0;
181: }
182:
1.52 albertel 183: $Apache::lonxml::browse='';
1.152 albertel 184: sub check_ip_acc {
185: my ($acc)=@_;
1.154 albertel 186: if (!defined($acc) || $acc =~ /^\s*$/) { return 1; }
1.152 albertel 187: my $allowed=0;
188: my $ip=$ENV{'REMOTE_ADDR'};
189: my $name;
190: foreach my $pattern (split(',',$acc)) {
191: if ($pattern =~ /\*$/) {
192: #35.8.*
193: $pattern=~s/\*//;
194: if ($ip =~ /^\Q$pattern\E/) { $allowed=1; }
195: } elsif ($pattern =~ /(\d+\.\d+\.\d+)\.\[(\d+)-(\d+)\]$/) {
196: #35.8.3.[34-56]
197: my $low=$2;
198: my $high=$3;
199: $pattern=$1;
200: if ($ip =~ /^\Q$pattern\E/) {
201: my $last=(split(/\./,$ip))[3];
202: if ($last <=$high && $last >=$low) { $allowed=1; }
203: }
204: } elsif ($pattern =~ /^\*/) {
205: #*.msu.edu
206: $pattern=~s/\*//;
207: if (!defined($name)) {
208: use Socket;
209: my $netaddr=inet_aton($ip);
210: ($name)=gethostbyaddr($netaddr,AF_INET);
1.158 albertel 211: }
1.152 albertel 212: if ($name =~ /\Q$pattern\E$/i) { $allowed=1; }
213: } elsif ($pattern =~ /\d+\.\d+\.\d+\.\d+/) {
214: #127.0.0.1
215: if ($ip =~ /^\Q$pattern\E/) { $allowed=1; }
216: } else {
217: #some.name.com
218: if (!defined($name)) {
219: use Socket;
220: my $netaddr=inet_aton($ip);
221: ($name)=gethostbyaddr($netaddr,AF_INET);
222: }
223: if ($name =~ /\Q$pattern\E$/i) { $allowed=1; }
224: }
225: if ($allowed) { last; }
226: }
227: return $allowed;
228: }
1.198 albertel 229:
230: sub check_task_access {
1.207 albertel 231: # does it pass normal muster
232: # yes we really do want the default args passing
1.200 albertel 233: my ($status,$datemsg)=&check_access;
234: if ($status eq 'SHOW_ANSWER' ||
235: $status eq 'CLOSED' ||
236: $status eq 'CANNOT_ANSWER' ||
237: $status eq 'INVALID_ACCESS' ||
238: $status eq 'UNAVAILABLE') {
239: return ($status,$datemsg);
240: }
1.204 albertel 241: if ($env{'request.state'} eq "construct") {
1.203 albertel 242: return ($status,$datemsg);
243: }
1.208 albertel 244: my $version=$Apache::lonhomework::history{'resource.version'};
1.209 albertel 245: if ($Apache::lonhomework::history{"resource.$version.checkedin"} &&
246: $Apache::lonhomework::history{"resource.$version.status"} eq 'pass') {
247: return ('SHOW_ANSWER');
1.207 albertel 248: }
1.200 albertel 249: my ($id)=@_;
1.210 albertel 250: my @slots=
251: (split(':',&Apache::lonnet::EXT("resource.$id.availablestudent")),
252: split(':',&Apache::lonnet::EXT("resource.$id.available")));
253:
1.200 albertel 254: # if (!@slots) {
255: # return ($status,$datemsg);
256: # }
257: my $slotstatus='NOT_IN_A_SLOT';
1.206 albertel 258: my ($returned_slot,$slot_name);
1.210 albertel 259: foreach my $slot (@slots) {
1.201 albertel 260: &Apache::lonxml::debug("getting $slot");
1.200 albertel 261: my %slot=&Apache::lonnet::get_slot($slot);
1.201 albertel 262: &Apache::lonhomework::showhash(%slot);
1.200 albertel 263: if ($slot{'starttime'} < time &&
264: $slot{'endtime'} > time &&
1.201 albertel 265: &check_ip_acc($slot{'ip'})) {
1.202 albertel 266: &Apache::lonxml::debug("$slot is good");
267: $slotstatus='NEEDS_CHECKIN';
268: $returned_slot=\%slot;
1.206 albertel 269: $slot_name=$slot;
1.200 albertel 270: last;
271: }
272: }
1.202 albertel 273: if ($slotstatus eq 'NEEDS_CHECKIN' &&
1.207 albertel 274: &proctor_checked_in($slot_name,$returned_slot)) {
1.202 albertel 275: &Apache::lonxml::debug("protoctor checked in");
1.200 albertel 276: $slotstatus='CAN_ANSWER';
277: }
1.209 albertel 278: if ( $slotstatus eq 'NOT_IN_A_SLOT' &&
1.208 albertel 279: $Apache::lonhomework::history{"resource.$version.checkedin"}) {
1.209 albertel 280: if ($Apache::lonhomework::history{"resource.$version.status"} eq 'fail') {
281: return ('SHOW_ANSWER');
282: } else {
283: return ('WAITING_FOR_GRADE');
284: }
1.207 albertel 285: }
1.206 albertel 286: return ($slotstatus,$datemsg,$slot_name,$returned_slot);
1.198 albertel 287: }
1.200 albertel 288:
1.92 bowersj2 289: # JB, 9/24/2002: Any changes in this function may require a change
290: # in lonnavmaps::resource::getDateStatus.
1.53 www 291: sub check_access {
1.145 albertel 292: my ($id) = @_;
293: my $date ='';
294: my $status;
295: my $datemsg = '';
296: my $lastdate = '';
297: my $temp;
298: my $type;
299: my $passed;
300:
1.204 albertel 301: if ($env{'request.state'} eq "construct") {
302: if ($env{'form.problemstate'}) {
303: if ($env{'form.problemstate'} =~ /^CANNOT_ANSWER/) {
304: if ( ! ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct' &&
1.167 albertel 305: lc($Apache::lonhomework::problemstatus) eq 'no')) {
1.168 albertel 306: return ('CANNOT_ANSWER',
1.174 www 307: &mt('is in this state due to author settings.'));
1.167 albertel 308: }
1.165 albertel 309: } else {
1.204 albertel 310: return ($env{'form.problemstate'},
1.174 www 311: &mt('is in this state due to author settings.'));
1.165 albertel 312: }
313: }
1.145 albertel 314: &Apache::lonxml::debug("in construction ignoring dates");
315: $status='CAN_ANSWER';
1.146 albertel 316: $datemsg=&mt('is in under construction');
1.163 albertel 317: # return ($status,$datemsg);
1.145 albertel 318: }
319:
320: &Apache::lonxml::debug("checking for part :$id:");
321: &Apache::lonxml::debug("time:".time);
1.152 albertel 322:
1.212 albertel 323: my ($symb)=&Apache::lonxml::whichuser();
324: &Apache::lonxml::debug("symb:".$symb);
325: #if ($env{'request.state'} ne "construct" && $symb ne '') {
1.204 albertel 326: if ($env{'request.state'} ne "construct") {
1.163 albertel 327: my $allowed=&check_ip_acc(&Apache::lonnet::EXT("resource.$id.acc"));
328: if (!$allowed && ($Apache::lonhomework::browse ne 'F')) {
329: $status='INVALID_ACCESS';
330: $date=&mt("can not be accessed from your location.");
1.145 albertel 331: return($status,$date);
332: }
1.163 albertel 333:
334: foreach $temp ("opendate","duedate","answerdate") {
335: $lastdate = $date;
336: $date = &Apache::lonnet::EXT("resource.$id.$temp");
337: my $thistype = &Apache::lonnet::EXT("resource.$id.$temp.type");
338: if ($thistype =~ /^(con_lost|no_such_host)/ ||
339: $date =~ /^(con_lost|no_such_host)/) {
340: $status='UNAVAILABLE';
341: $date=&mt("may open later.");
342: return($status,$date);
343: }
344: if ($thistype eq 'date_interval') {
345: if ($temp eq 'opendate') {
346: $date=&Apache::lonnet::EXT("resource.$id.duedate")-$date;
347: }
348: if ($temp eq 'answerdate') {
349: $date=&Apache::lonnet::EXT("resource.$id.duedate")+$date;
350: }
1.145 albertel 351: }
1.163 albertel 352: &Apache::lonxml::debug("found :$date: for :$temp:");
353: if ($date eq '') {
354: $date = &mt("an unknown date"); $passed = 0;
355: } elsif ($date eq 'con_lost') {
356: $date = &mt("an indeterminate date"); $passed = 0;
357: } else {
358: if (time < $date) { $passed = 0; } else { $passed = 1; }
359: $date = localtime $date;
1.145 albertel 360: }
1.163 albertel 361: if (!$passed) { $type=$temp; last; }
1.145 albertel 362: }
1.163 albertel 363: &Apache::lonxml::debug("have :$type:$passed:");
364: if ($passed) {
365: $status='SHOW_ANSWER';
366: $datemsg=$date;
367: } elsif ($type eq 'opendate') {
368: $status='CLOSED';
369: $datemsg = &mt("will open on")." $date";
370: } elsif ($type eq 'duedate') {
371: $status='CAN_ANSWER';
372: $datemsg = &mt("is due at")." $date";
373: } elsif ($type eq 'answerdate') {
374: $status='CLOSED';
375: $datemsg = &mt("was due on")." $lastdate".&mt(", and answers will be available on")." $date";
1.145 albertel 376: }
377: }
1.212 albertel 378: if ($status eq 'CAN_ANSWER' ||
379: (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED'))) {
1.145 albertel 380: #check #tries, and if correct.
381: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
382: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
383: if ( $tries eq '' ) { $tries = '0'; }
1.164 albertel 384: if ( $maxtries eq '' &&
1.204 albertel 385: $env{'request.state'} ne 'construct') { $maxtries = '2'; }
1.164 albertel 386: if ($maxtries && $tries >= $maxtries) { $status = 'CANNOT_ANSWER'; }
1.145 albertel 387: # if (correct and show prob status) or excused then CANNOT_ANSWER
388: if(($Apache::lonhomework::history{"resource.$id.solved"}=~/^correct/
389: &&
390: lc($Apache::lonhomework::problemstatus) ne 'no')
391: ||
392: $Apache::lonhomework::history{"resource.$id.solved"}=~/^excused/) {
393: $status = 'CANNOT_ANSWER';
394: }
1.121 albertel 395: }
1.181 albertel 396: if ($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER') {
1.177 albertel 397: my $interval=&Apache::lonnet::EXT("resource.$id.interval");
398: &Apache::lonxml::debug("looking for interval $interval");
399: if ($interval) {
400: my $first_access=&Apache::lonnet::get_first_access('map');
401: &Apache::lonxml::debug("looking for accesstime $first_access");
402: if (!$first_access) {
403: $status='NOT_YET_VIEWED';
1.192 albertel 404: $datemsg=&seconds_to_human_length($interval);
1.177 albertel 405: } else {
406: my $newdate=localtime($first_access+$interval);
407: if (time > ($first_access+$interval)) {
408: $status='CLOSED';
409: $datemsg = &mt("was due on")." $newdate".&mt(", and answers will be available on")." $date";
410: } else {
411: $datemsg = &mt("is due at")." $newdate";
412: }
413: }
414: }
415: }
1.133 albertel 416: #if (($status ne 'CLOSED') && ($Apache::lonhomework::type eq 'exam') &&
417: # (!$Apache::lonhomework::history{"resource.0.outtoken"})) {
418: # return ('UNCHECKEDOUT','needs to be checked out');
419: #}
1.54 www 420:
421:
1.145 albertel 422: &Apache::lonxml::debug("sending back :$status:$datemsg:");
423: if (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED')) {
424: &Apache::lonxml::debug("should be allowed to browse a resource when closed");
425: $status='CAN_ANSWER';
1.146 albertel 426: $datemsg=&mt('is closed but you are allowed to view it');
1.145 albertel 427: }
1.106 albertel 428:
1.145 albertel 429: return ($status,$datemsg);
1.20 albertel 430: }
431:
1.192 albertel 432: sub seconds_to_human_length {
433: my ($length)=@_;
434:
435: my $seconds=$length%60; $length=int($length/60);
436: my $minutes=$length%60; $length=int($length/60);
437: my $hours=$length%24; $length=int($length/24);
438: my $days=$length;
439:
440: my $timestr;
441: if ($days > 0) { $timestr.=&mt('[quant,_1,day]',$days); }
442: if ($hours > 0) { $timestr.=($timestr?", ":"").
443: &mt('[quant,_1,hour]',$hours); }
444: if ($minutes > 0) { $timestr.=($timestr?", ":"").
445: &mt('[quant,_1,minute]',$minutes); }
446: if ($seconds > 0) { $timestr.=($timestr?", ":"").
447: &mt('[quant,_1,second]',$seconds); }
448: return $timestr;
449: }
450:
1.41 albertel 451: sub showhash {
1.145 albertel 452: my (%hash) = @_;
453: &showhashsubset(\%hash,'.');
454: return '';
1.79 albertel 455: }
456:
1.106 albertel 457: sub showarray {
458: my ($array)=@_;
459: my $string="(";
460: foreach my $elm (@{ $array }) {
1.193 albertel 461: if (ref($elm) eq 'ARRAY') {
462: $string.=&showarray($elm);
463: } elsif (ref($elm) eq 'HASH') {
464: $string.= "HASH --- \n<br />";
465: $string.= &showhashsubset($elm,'.');
1.106 albertel 466: } else {
467: $string.="$elm,"
468: }
469: }
470: chop($string);
471: $string.=")";
472: return $string;
473: }
474:
1.79 albertel 475: sub showhashsubset {
1.145 albertel 476: my ($hash,$keyre) = @_;
477: my $resultkey;
478: foreach $resultkey (sort keys %$hash) {
1.193 albertel 479: if ($resultkey !~ /$keyre/) { next; }
480: if (ref($$hash{$resultkey}) eq 'ARRAY' ) {
481: &Apache::lonxml::debug("$resultkey ---- ".
482: &showarray($$hash{$resultkey}));
483: } elsif (ref($$hash{$resultkey}) eq 'HASH' ) {
484: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
485: &showhashsubset($$hash{$resultkey},'.');
486: } else {
487: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
1.145 albertel 488: }
489: }
490: &Apache::lonxml::debug("\n<br />restored values^</br>\n");
491: return '';
1.41 albertel 492: }
493:
494: sub setuppermissions {
1.204 albertel 495: $Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$env{'request.filename'});
496: my $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'});
1.145 albertel 497: if (! $viewgrades &&
1.204 albertel 498: exists($env{'request.course.sec'}) &&
499: $env{'request.course.sec'} !~ /^\s*$/) {
500: $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'}.
501: '/'.$env{'request.course.sec'});
1.145 albertel 502: }
1.188 foxr 503: $Apache::lonhomework::viewgrades = $viewgrades; # File global variable...dirt.
1.185 albertel 504: if ($Apache::lonhomework::browse eq 'F' &&
1.204 albertel 505: $env{'form.devalidatecourseresdata'} eq 'on') {
1.185 albertel 506: my (undef,$courseid) = &Apache::lonxml::whichuser();
1.204 albertel 507: &Apache::lonnet::devalidatecourseresdata($env{"course.$courseid.num"},
508: $env{"course.$courseid.domain"});
1.185 albertel 509: }
1.205 albertel 510: my $modifygrades = &Apache::lonnet::allowed('mgr',$env{'request.course.id'});
511: if (! $modifygrades &&
512: exists($env{'request.course.sec'}) &&
513: $env{'request.course.sec'} !~ /^\s*$/) {
514: $modifygrades =
515: &Apache::lonnet::allowed('mgr',$env{'request.course.id'}.
516: '/'.$env{'request.course.sec'});
517: }
518: $Apache::lonhomework::modifygrades = $modifygrades;
519: return '';
1.41 albertel 520: }
521:
522: sub setupheader {
1.120 albertel 523: my $request=$_[0];
1.197 albertel 524: &Apache::loncommon::content_type($request,'text/html');
1.120 albertel 525: if (!$Apache::lonxml::debug && ($ENV{'REQUEST_METHOD'} eq 'GET')) {
526: &Apache::loncommon::no_cache($request);
527: }
1.196 albertel 528: # $request->set_last_modified(&Apache::lonnet::metadata($request->uri,
529: # 'lastrevisiondate'));
1.120 albertel 530: $request->send_http_header;
531: return OK if $request->header_only;
532: return ''
1.41 albertel 533: }
1.35 albertel 534:
1.47 albertel 535: sub handle_save_or_undo {
1.145 albertel 536: my ($request,$problem,$result) = @_;
537: my $file = &Apache::lonnet::filelocation("",$request->uri);
538: my $filebak =$file.".bak";
539: my $filetmp =$file.".tmp";
540: my $error=0;
1.156 albertel 541:
542: &Apache::lonnet::correct_line_ends($result);
1.52 albertel 543:
1.204 albertel 544: if ($env{'form.Undo'} eq &mt('undo')) {
1.145 albertel 545: my $error=0;
546: if (!copy($file,$filetmp)) { $error=1; }
547: if ((!$error) && (!copy($filebak,$file))) { $error=1; }
548: if ((!$error) && (!move($filetmp,$filebak))) { $error=1; }
549: if (!$error) {
1.171 albertel 550: &Apache::lonxml::info("<p><b>".&mt("Undid changes, Switched")." $filebak ".&mt("and")." $file</b></p>");
1.145 albertel 551: } else {
1.171 albertel 552: &Apache::lonxml::info("<p><font color=\"red\" size=\"+1\"><b>".&mt("Unable to undo, unable to switch")." $filebak ".&mt("and")." $file</b></font></p>");
1.145 albertel 553: $error=1;
554: }
1.52 albertel 555: } else {
1.145 albertel 556: my $fs=Apache::File->new(">$filebak");
557: if (defined($fs)) {
558: print $fs $$problem;
1.171 albertel 559: &Apache::lonxml::info("<b>".&mt("Making Backup to").
560: " $filebak</b>");
1.145 albertel 561: } else {
1.171 albertel 562: &Apache::lonxml::info("<font color=\"red\" size=\"+1\"><b>".&mt("Unable to make backup")." $filebak</b></font>");
1.145 albertel 563: $error=2;
564: }
565: my $fh=Apache::File->new(">$file");
566: if (defined($fh)) {
567: print $fh $$result;
1.171 albertel 568: &Apache::lonxml::info("<b>".&mt("Saving Modifications to").
569: " $file</b>");
1.145 albertel 570: } else {
1.171 albertel 571: &Apache::lonxml::info("<font color=\"red\" size=\"+1\"><b>".
572: &mt("Unable to write to")." $file</b></font>");
1.145 albertel 573: $error|=4;
574: }
1.52 albertel 575: }
1.145 albertel 576: return $error;
1.64 albertel 577: }
578:
1.101 albertel 579: sub analyze_header {
580: my ($request) = @_;
1.183 albertel 581: my $bodytag='<body bgcolor="#ffffff">';
1.204 albertel 582: if ($env{'environment.remote'} eq 'off') {
1.183 albertel 583: $bodytag=&Apache::loncommon::bodytag();
584: }
1.197 albertel 585: my $html=&Apache::lonxml::xmlbegin();
586: my $result.=$html.'
1.146 albertel 587: <head><title>'.&mt("Analyzing a problem").'</title></head>
1.183 albertel 588: '.$bodytag.&Apache::lonxml::message_location().'
1.101 albertel 589: <form name="lonhomework" method="POST" action="'.
1.204 albertel 590: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
1.179 albertel 591: &Apache::structuretags::remember_problem_state().'
1.146 albertel 592: <input type="submit" name="problemmode" value="'.&mt("EditXML").'" />
593: <input type="submit" name="problemmode" value="'.&mt('Edit').'" />
1.101 albertel 594: <hr />
1.146 albertel 595: <input type="submit" name="submit" value="'.&mt("View").'" />
1.101 albertel 596: <hr />
597: </form>';
1.171 albertel 598: &Apache::lonxml::add_messages(\$result);
1.101 albertel 599: $request->print($result);
600: $request->rflush();
601: }
602:
1.109 albertel 603: sub analyze_footer {
604: my ($request) = @_;
605: my $result='</body></html>';
606: $request->print($result);
607: $request->rflush();
608: }
609:
1.74 albertel 610: sub analyze {
1.101 albertel 611: my ($request,$file) = @_;
612: &Apache::lonxml::debug("Analyze");
613: my $result;
614: my %overall;
615: my %allparts;
1.204 albertel 616: my $rndseed=$env{'form.rndseed'};
1.101 albertel 617: &analyze_header($request);
1.114 albertel 618: my %prog_state=
1.146 albertel 619: &Apache::lonhtmlcommon::Create_PrgWin($request,&mt('Analyze Progress'),
620: &mt('Getting Problem Variants'),
1.204 albertel 621: $env{'form.numtoanalyze'},
1.175 albertel 622: 'inline',undef);
1.204 albertel 623: for(my $i=1;$i<$env{'form.numtoanalyze'}+1;$i++) {
1.114 albertel 624: &Apache::lonhtmlcommon::Increment_PrgWin($request,\%prog_state,
1.146 albertel 625: &mt('last problem'));
1.182 albertel 626: if (&Apache::loncommon::connection_aborted($request)) { return; }
1.101 albertel 627: my $subresult=&Apache::lonnet::ssi($request->uri,
628: ('grade_target' => 'analyze'),
1.130 albertel 629: ('rndseed' => $i+$rndseed));
1.101 albertel 630: (my $garbage,$subresult)=split(/_HASH_REF__/,$subresult,2);
631: my %analyze=&Apache::lonnet::str2hash($subresult);
1.114 albertel 632: my @parts;
633: if (defined(@{ $analyze{'parts'} })) {
634: @parts=@{ $analyze{'parts'} };
635: }
1.101 albertel 636: foreach my $part (@parts) {
637: if (!exists($allparts{$part})) {$allparts{$part}=1;};
1.109 albertel 638: if ($analyze{$part.'.type'} eq 'numericalresponse' ||
639: $analyze{$part.'.type'} eq 'stringresponse' ||
640: $analyze{$part.'.type'} eq 'formularesponse' ) {
1.101 albertel 641: push( @{ $overall{$part.'.answer'} },
642: [@{ $analyze{$part.'.answer'} }]);
643: }
644: }
645: }
1.114 albertel 646: &Apache::lonhtmlcommon::Update_PrgWin($request,\%prog_state,
1.146 albertel 647: &mt('Analyzing Results'));
1.175 albertel 648: $request->print('<hr />'.&mt('List of possible answers').': ');
1.134 albertel 649: foreach my $part (sort(keys(%allparts))) {
1.109 albertel 650: if (defined(@{ $overall{$part.'.answer'} })) {
1.132 albertel 651: my $num_cols=scalar(@{ $overall{$part.'.answer'}->[0] });
1.184 albertel 652: $request->print('<table><tr><th colspan="'.($num_cols+1).'">'.&mt('Part').' '.$part.'</th></tr>');
1.130 albertel 653: my %frequency;
1.109 albertel 654: foreach my $answer (sort {$a->[0] <=> $b->[0]} (@{ $overall{$part.'.answer'} })) {
1.132 albertel 655: $frequency{join("\0",@{ $answer })}++;
1.130 albertel 656: }
1.184 albertel 657: $request->print('<tr><th colspan="'.($num_cols).'">'.&mt('Answer').'</th><th>'.&mt('Frequency').'</th></tr>');
1.132 albertel 658: foreach my $answer (sort {(split("\0",$a))[0] <=> (split("\0",$b))[0]} (keys(%frequency))) {
659: $request->print('<tr><td align="right">'.
660: join('</td><td align="right">',split("\0",$answer)).
1.130 albertel 661: '</td><td>('.$frequency{$answer}.
662: ')</td></tr>');
1.109 albertel 663: }
664: $request->print('</table>');
665: } else {
1.162 albertel 666: $request->print('<p>'.&mt('Response').' '.$part.' '.
1.146 albertel 667: &mt('is not analyzable at this time').'</p>');
1.101 albertel 668: }
669: }
1.130 albertel 670: if (scalar(keys(%allparts)) == 0 ) {
1.215 ! raeburn 671: $request->print('<p>'.&mt('Found no analyzable responses in this problem, currently only Numerical, Formula and String response styles are supported.').'</p>');
1.130 albertel 672: }
1.114 albertel 673: &Apache::lonhtmlcommon::Close_PrgWin($request,\%prog_state);
1.109 albertel 674: &analyze_footer($request);
1.101 albertel 675: &Apache::lonhomework::showhash(%overall);
676: return $result;
1.74 albertel 677: }
678:
1.64 albertel 679: sub editxmlmode {
1.145 albertel 680: my ($request,$file) = @_;
681: my $result;
682: my $problem=&Apache::lonnet::getfile($file);
683: if ($problem eq -1) {
1.146 albertel 684: &Apache::lonxml::error("<b> ".&mt('Unable to find').
685: " <i>$file</i></b>");
1.145 albertel 686: $problem='';
687: }
1.204 albertel 688: if (defined($env{'form.editxmltext'}) || defined($env{'form.Undo'})) {
1.145 albertel 689: my $error=&handle_save_or_undo($request,\$problem,
1.204 albertel 690: \$env{'form.editxmltext'});
1.145 albertel 691: if (!$error) { $problem=&Apache::lonnet::getfile($file); }
692: }
1.204 albertel 693: &Apache::lonhomework::showhashsubset(\%env,'^form');
694: if ( $env{'form.submit'} eq &mt('Submit Changes and View') ) {
695: &Apache::lonhomework::showhashsubset(\%env,'^form');
696: $env{'form.problemmode'}='View';
1.145 albertel 697: &renderpage($request,$file);
698: } else {
699: my ($rows,$cols) = &Apache::edit::textarea_sizes(\$problem);
1.160 www 700: my $xml_help = '<table><tr><td>'.
701: &Apache::loncommon::helpLatexCheatsheet("Problem_Editor_XML_Index",
702: "Problem Editing Help").
703: '</td><td>'.
1.178 albertel 704: &Apache::loncommon::help_open_menu('',undef,undef,undef,5,'Authoring').
705: '</td></tr></table>';
1.145 albertel 706: if ($cols > 80) { $cols = 80; }
707: if ($cols < 70) { $cols = 70; }
708: if ($rows < 20) { $rows = 20; }
1.183 albertel 709: my $bodytag='<body bgcolor="#ffffff">';
1.204 albertel 710: if ($env{'environment.remote'} eq 'off') {
1.183 albertel 711: $bodytag=&Apache::loncommon::bodytag();
712: }
1.197 albertel 713: my $html=&Apache::lonxml::xmlbegin();
1.213 albertel 714: $result.=$html.$bodytag.
715: &renderpage($request,$file,['no_output_web'],1).
716: &Apache::lonxml::message_location().'
1.64 albertel 717: <form name="lonhomework" method="POST" action="'.
1.204 albertel 718: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
1.179 albertel 719: &Apache::structuretags::remember_problem_state().'
1.146 albertel 720: <input type="hidden" name="problemmode" value="'.&mt('EditXML').'" />
1.170 matthew 721: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
722: <input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />
1.64 albertel 723: <hr />
1.170 matthew 724: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes').'" />
725: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" />
726: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.64 albertel 727: <hr />
1.110 albertel 728: ' . $xml_help . '
1.199 albertel 729: <textarea style="width:100%" rows="'.$rows.'" cols="'.$cols.'" name="editxmltext">'.
1.172 albertel 730: &HTML::Entities::encode($problem,'<>&"').'</textarea>
1.64 albertel 731: </form></body></html>';
1.171 albertel 732: &Apache::lonxml::add_messages(\$result);
1.145 albertel 733: $request->print($result);
734: }
735: return '';
1.47 albertel 736: }
1.189 albertel 737:
1.188 foxr 738: #
739: # Render the page in whatever target desired.
740: #
1.41 albertel 741: sub renderpage {
1.213 albertel 742: my ($request,$file,$targets,$return_string) = @_;
1.52 albertel 743:
1.211 albertel 744: my @targets = @{$targets || [&get_target()]};
1.204 albertel 745: &Apache::lonhomework::showhashsubset(\%env,'form.');
1.145 albertel 746: &Apache::lonxml::debug("Running targets ".join(':',@targets));
1.171 albertel 747: my $overall_result;
1.145 albertel 748: foreach my $target (@targets) {
1.183 albertel 749: # FIXME need to do something intelligent when a problem goes
750: # from viewable to not viewable due to map conditions
751: #&setuppermissions();
752: #if ( $Apache::lonhomework::browse ne '2'
753: # && $Apache::lonhomework::browse ne 'F' ) {
754: # $request->print(" You most likely shouldn't see me.");
755: #}
1.145 albertel 756: #my $t0 = [&gettimeofday()];
1.211 albertel 757: my $output=1;
758: if ($target eq 'no_output_web') {
759: $target = 'web'; $output=0;
760: }
1.145 albertel 761: my $problem=&Apache::lonnet::getfile($file);
762: if ($problem eq -1) {
1.146 albertel 763: &Apache::lonxml::error("<b> ".&mt('Unable to find')." <i>$file</i></b>");
1.145 albertel 764: $problem='';
765: }
1.52 albertel 766:
1.145 albertel 767: my %mystyle;
768: if ($target eq 'analyze') { %Apache::lonhomework::analyze=(); }
769: if ($target eq 'answer') { &showhash(%Apache::lonhomework::history); }
1.204 albertel 770: if ($target eq 'web') {&Apache::lonhomework::showhashsubset(\%env,'^form');}
1.145 albertel 771:
772: &Apache::lonxml::debug("Should be parsing now");
1.211 albertel 773: my $result = &Apache::lonxml::xmlparse($request, $target, $problem,
774: &setup_vars($target),%mystyle);
1.145 albertel 775: undef($Apache::lonhomework::parsing_a_problem);
1.214 albertel 776: if (!$output) { $result = ''; }
1.145 albertel 777: #$request->print("Result follows:");
778: if ($target eq 'modified') {
779: &handle_save_or_undo($request,\$problem,\$result);
780: } else {
781: if ($target eq 'analyze') {
782: $result=&Apache::lonnet::hashref2str(\%Apache::lonhomework::analyze);
783: undef(%Apache::lonhomework::analyze);
784: }
785: #my $td=&tv_interval($t0);
786: #if ( $Apache::lonxml::debug) {
787: #$result =~ s:</body>::;
788: #$result.="<br />Spent $td seconds processing target $target\n</body>";
789: #}
1.171 albertel 790: # $request->print($result);
791: $overall_result.=$result;
792: # $request->rflush();
1.145 albertel 793: }
794: #$request->print(":Result ends");
795: #my $td=&tv_interval($t0);
1.52 albertel 796: }
1.213 albertel 797: if (!$return_string) {
798: &Apache::lonxml::add_messages(\$overall_result);
799: $request->print($overall_result);
800: $request->rflush();
801: } else {
802: return $overall_result;
803: }
1.41 albertel 804: }
805:
1.42 albertel 806: # with no arg it returns a HTML <option> list of the template titles
807: # with one arg it returns the filename associated with the arg passed
808: sub get_template_list {
1.145 albertel 809: my ($namewanted,$extension) = @_;
810: my $result;
811: my @allnames;
812: &Apache::lonxml::debug("Looking for :$extension:");
813: foreach my $file (</home/httpd/html/res/adm/includes/templates/*.$extension>) {
814: my $name=&Apache::lonnet::metadata($file,'title');
815: if ($namewanted && ($name eq $namewanted)) {
816: $result=$file;
817: last;
818: } else {
819: if ($name) { push (@allnames, $name); }
820: }
821: }
822: if (@allnames && !$result) {
1.146 albertel 823: $result="<option>".&mt("Select a")." $extension ".&mt('template')."</option>\n<option>".
1.145 albertel 824: join('</option><option>',sort(@allnames)).'</option>';
1.42 albertel 825: }
1.145 albertel 826: return $result;
1.42 albertel 827: }
828:
829: sub newproblem {
1.65 matthew 830: my ($request) = @_;
831: my $extension=$request->uri;
832: $extension=~s:^.*\.([\w]+)$:$1:;
833: &Apache::lonxml::debug("Looking for :$extension:");
1.131 albertel 834: my $templatelist=&get_template_list('',$extension);
1.204 albertel 835: if ($env{'form.template'} &&
836: $env{'form.template'} ne "Select a $extension template") {
1.65 matthew 837: use File::Copy;
1.204 albertel 838: my $file = &get_template_list($env{'form.template'},$extension);
1.65 matthew 839: my $dest = &Apache::lonnet::filelocation("",$request->uri);
840: copy($file,$dest);
841: &renderpage($request,$dest);
1.204 albertel 842: } elsif($env{'form.newfile'} && !$templatelist) {
1.131 albertel 843: # I don't like hard-coded filenames but for now, this will work.
844: use File::Copy;
845: my $templatefilename =
846: $request->dir_config('lonIncludes').'/templates/blank.problem';
847: &Apache::lonxml::debug("$templatefilename");
848: my $dest = &Apache::lonnet::filelocation("",$request->uri);
849: copy($templatefilename,$dest);
850: &renderpage($request,$dest);
1.85 albertel 851: } else {
1.176 albertel 852: my $url=&HTML::Entities::encode($request->uri,'<>&"');
853: my $shownurl=$url;
1.157 albertel 854: $shownurl=~s-^/~-/priv/-;
1.65 matthew 855: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1.128 albertel 856: my $errormsg;
1.204 albertel 857: if ($env{'form.newfile'}) {
1.146 albertel 858: $errormsg='<p><font color="red">'.&mt('You did not select a template.').'</font></p>'."\n";
1.128 albertel 859: }
1.85 albertel 860: my $instructions;
1.186 albertel 861: my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,
1.204 albertel 862: ($env{'environment.remote'} ne 'off'));
1.146 albertel 863: if ($templatelist) { $instructions=&mt(", select a template from the pull-down menu below.").'<br />'.&mt("Then");}
1.147 albertel 864: my %lt=&Apache::lonlocal::texthash( 'create' => 'Creating a new',
1.146 albertel 865: 'resource' => 'resource',
866: 'requested' => 'The requested file',
867: 'not exist' => 'currently does not exist',
868: 'createnew' => 'To create a new',
869: 'click' => 'click on the',
870: 'Create' => 'Create',
871: 'button' => 'button');
1.65 matthew 872: $request->print(<<ENDNEWPROBLEM);
1.159 www 873: $bodytag
1.148 albertel 874: <h1>$lt{'create'} $extension $lt{'resource'}</h1>
1.128 albertel 875: $errormsg
1.157 albertel 876: $lt{'requested'} <tt>$shownurl</tt> $lt{'not exist'}.
1.105 www 877: <p>
1.146 albertel 878: <b>$lt{'createnew'} $extension$instructions $lt{'click'} "$lt{'Create'} $extension" $lt{'button'}.</b>
1.105 www 879: </p>
880: <p><form action="$url" method="POST">
1.42 albertel 881: ENDNEWPROBLEM
1.85 albertel 882: if (defined($templatelist)) {
883: $request->print("<select name=\"template\">$templatelist</select>");
884: }
1.146 albertel 885: $request->print("<br /><input type=\"submit\" name=\"newfile\" value=\"".&mt('Create')." $extension\" />");
1.105 www 886: $request->print("</form></p></body>");
1.65 matthew 887: }
888: return '';
1.42 albertel 889: }
890:
891: sub view_or_edit_menu {
1.145 albertel 892: my ($request) = @_;
1.176 albertel 893: my $url=&HTML::Entities::encode($request->uri,'<>&"');
1.147 albertel 894: my %lt=&Apache::lonlocal::texthash( 'would' => 'Would you like to',
1.146 albertel 895: 'view' => 'View',
896: 'Edit' => 'edit',
897: 'or' => 'or',
898: 'the problem' => 'the problem');
1.145 albertel 899: $request->print(<<EDITMENU);
1.42 albertel 900: <body bgcolor="#FFFFFF">
901: <form action="$url" method="POST">
1.170 matthew 902: $lt{'would'} <input type="submit" name="problemmode" accesskey="v" value="<{'view'}">
903: <{'or'} <input type="submit" name="problemmode" accesskey="e" value="<{'Edit'}">
1.146 albertel 904: <{'the problem'}.
1.42 albertel 905: </form>
906: </body>
907: EDITMENU
908: }
909:
1.41 albertel 910: sub handler {
1.145 albertel 911: #my $t0 = [&gettimeofday()];
912: my $request=$_[0];
913:
1.204 albertel 914: $Apache::lonxml::debug=$env{'user.debug'};
915: $env{'request.uri'}=$request->uri;
1.180 albertel 916: &setuppermissions();
1.145 albertel 917: # some times multiple problemmodes are submitted, need to select
918: # the last one
1.204 albertel 919: if ( defined($env{'form.problemmode'}) && ref($env{'form.problemmode'}) ) {
920: my $mode=$env{'form.problemmode'}->[-1];
921: undef $env{'form.problemmode'};
922: $env{'form.problemmode'}=$mode;
1.145 albertel 923: }
1.193 albertel 924:
1.145 albertel 925: my $file=&Apache::lonnet::filelocation("",$request->uri);
926:
927: #check if we know where we are
1.204 albertel 928: if ($env{'request.course.fn'} && !&Apache::lonnet::symbread()) {
1.145 albertel 929: # if we are browsing we might not be able to know where we are
1.173 albertel 930: if ($Apache::lonhomework::browse ne 'F' &&
1.204 albertel 931: $env{'request.state'} ne "construct") {
1.145 albertel 932: #should know where we are, so ask
933: if ( &Apache::lonnet::mod_perl_version() == 2 ) {
934: &Apache::lonnet::cleanenv();
935: }
1.190 albertel 936: &Apache::lonnet::logthis(&Apache::lonnet::mod_perl_version());
937: $request->internal_redirect('/adm/ambiguous'); return OK;
1.145 albertel 938: }
939: }
1.187 albertel 940: if (&setupheader($request)) { return OK; }
1.193 albertel 941: &Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:");
1.204 albertel 942: &Apache::lonxml::debug("Problem Mode ".$env{'form.problemmode'});
1.145 albertel 943: my ($symb) = &Apache::lonxml::whichuser();
944: &Apache::lonxml::debug('symb is '.$symb);
1.204 albertel 945: if ($env{'request.state'} eq "construct" || $symb eq '') {
946: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
947: $env{'form.resetdata'} eq &mt('New Problem Variation') ||
948: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.145 albertel 949: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
950: &Apache::lonnet::tmpreset($symb,'',$domain,$name);
951: &Apache::lonxml::debug("Attempt reset");
952: }
953: }
1.204 albertel 954: if ($env{'request.state'} eq "construct") {
1.145 albertel 955: if ( -e $file ) {
956: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
957: ['problemmode']);
1.204 albertel 958: if (!(defined $env{'form.problemmode'})) {
1.145 albertel 959: #first visit to problem in construction space
960: #&view_or_edit_menu($request);
1.204 albertel 961: $env{'form.problemmode'}='View';
1.145 albertel 962: &renderpage($request,$file);
1.204 albertel 963: } elsif ($env{'form.problemmode'} eq &mt('EditXML') ||
964: $env{'form.problemmode'} eq 'EditXML') {
1.145 albertel 965: &editxmlmode($request,$file);
1.204 albertel 966: } elsif ($env{'form.problemmode'} eq &mt('Calculate answers')) {
1.145 albertel 967: &analyze($request,$file);
968: } else {
969: &renderpage($request,$file);
970: }
971: } else {
972: # requested file doesn't exist in contruction space
973: &newproblem($request);
974: }
975: } else {
976: # just render the page normally outside of construction space
977: &Apache::lonxml::debug("not construct");
1.52 albertel 978: &renderpage($request,$file);
1.41 albertel 979: }
1.145 albertel 980: #my $td=&tv_interval($t0);
981: #&Apache::lonxml::debug("Spent $td seconds processing");
982: # &Apache::lonhomework::send_footer($request);
983: # always turn off debug messages
984: $Apache::lonxml::debug=0;
985: return OK;
1.52 albertel 986:
1.1 albertel 987: }
988:
989: 1;
990: __END__
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