Annotation of loncom/homework/lonhomework.pm, revision 1.268.2.2
1.63 albertel 1: # The LearningOnline Network with CAPA
1.52 albertel 2: # The LON-CAPA Homework handler
1.63 albertel 3: #
1.268.2.2! albertel 4: # $Id: lonhomework.pm,v 1.268.2.1 2007/09/06 14:41:00 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'});
1.244 albertel 89: } elsif ( $env{'form.grade_target'} eq 'webgrade'
90: && ($Apache::lonhomework::queuegrade eq 'F' )) {
91: return ($env{'form.grade_target'});
1.207 albertel 92: }
93: if ($env{'form.webgrade'} &&
1.244 albertel 94: ($Apache::lonhomework::modifygrades eq 'F'
95: || $Apache::lonhomework::queuegrade eq 'F' )) {
1.207 albertel 96: return ('grade','webgrade');
1.145 albertel 97: }
1.204 albertel 98: if ( defined($env{'form.submitted'}) &&
99: ( !defined($env{'form.newrandomization'}))) {
1.217 albertel 100: return ('grade', 'web');
1.145 albertel 101: } else {
1.217 albertel 102: return ('web');
1.145 albertel 103: }
1.204 albertel 104: } elsif ($env{'request.state'} eq "construct") {
105: if ( defined($env{'form.grade_target'}) ) {
106: return ($env{'form.grade_target'});
1.145 albertel 107: }
1.204 albertel 108: if ( defined($env{'form.preview'})) {
109: if ( defined($env{'form.submitted'})) {
1.145 albertel 110: return ('grade', 'web');
111: } else {
112: return ('web');
113: }
114: } else {
1.267 albertel 115: if ($env{'form.problemstate'} eq 'WEB_GRADE') {
116: #$env{'form.webgrade'} = 'yes';
117: return ('grade','webgrade','answer');
118: } elsif ( $env{'form.problemmode'} eq &mt('View') ||
1.204 albertel 119: $env{'form.problemmode'} eq &mt('Discard Edits and View')) {
120: if ( defined($env{'form.submitted'}) &&
121: (!defined($env{'form.resetdata'})) &&
122: (!defined($env{'form.newrandomization'}))) {
1.145 albertel 123: return ('grade', 'web','answer');
124: } else {
125: return ('web','answer');
126: }
1.204 albertel 127: } elsif ( $env{'form.problemmode'} eq &mt('Edit') ||
128: $env{'form.problemmode'} eq 'Edit') {
129: if ( $env{'form.submitted'} eq 'edit' ) {
130: if ( $env{'form.submit'} eq &mt('Submit Changes and View') ) {
1.145 albertel 131: return ('modified','web','answer');
132: } else {
1.211 albertel 133: return ('modified','no_output_web','edit');
1.145 albertel 134: }
135: } else {
1.211 albertel 136: return ('no_output_web','edit');
1.145 albertel 137: }
138: } else {
139: return ('web');
140: }
141: }
1.15 albertel 142: }
1.145 albertel 143: return ();
1.5 albertel 144: }
145:
1.3 albertel 146: sub setup_vars {
1.145 albertel 147: my ($target) = @_;
148: return ';'
1.11 albertel 149: # return ';$external::target='.$target.';';
1.2 albertel 150: }
151:
1.36 albertel 152: sub createmenu {
1.145 albertel 153: my ($which,$request)=@_;
154: if ($which eq 'grade') {
155: $request->print('<script language="JavaScript">
1.91 albertel 156: hwkmenu=window.open("/res/adm/pages/homeworkmenu.html","homeworkremote",
1.52 albertel 157: "height=350,width=150,menubar=no");
158: </script>');
1.145 albertel 159: }
1.36 albertel 160: }
161:
1.200 albertel 162: sub proctor_checked_in {
1.226 albertel 163: my ($slot_name,$slot,$type)=@_;
164: my @possible_proctors=split(",",$slot->{'proctor'});
165:
1.248 albertel 166: return 1 if (!@possible_proctors);
167:
1.226 albertel 168: my $key;
169: if ($type eq 'Task') {
1.230 albertel 170: my $version=$Apache::lonhomework::history{'resource.0.version'};
171: $key ="resource.$version.0.checkedin";
1.226 albertel 172: } elsif ($type eq 'problem') {
173: $key ='resource.0.checkedin';
174: }
1.249 albertel 175: # backward compatability, used to be username@domain,
176: # now is username:domain
177: my $who = $Apache::lonhomework::history{$key};
178: if ($who !~ /:/) {
179: $who =~ tr/@/:/;
180: }
1.226 albertel 181: foreach my $possible (@possible_proctors) {
1.249 albertel 182: if ($who eq $possible
1.226 albertel 183: && $Apache::lonhomework::history{$key.'.slot'} eq $slot_name) {
1.202 albertel 184: return 1;
185: }
186: }
1.226 albertel 187:
1.200 albertel 188: return 0;
189: }
190:
1.52 albertel 191: $Apache::lonxml::browse='';
1.152 albertel 192: sub check_ip_acc {
193: my ($acc)=@_;
1.218 albertel 194: &Apache::lonxml::debug("acc is $acc");
195: if (!defined($acc) || $acc =~ /^\s*$/ || $acc =~/^\s*no\s*$/i) {
196: return 1;
197: }
1.152 albertel 198: my $allowed=0;
1.268.2.2! albertel 199: my $ip=$env{'request.host'} || $ENV{'REMOTE_ADDR'};
! 200:
1.152 albertel 201: my $name;
202: foreach my $pattern (split(',',$acc)) {
1.233 albertel 203: $pattern =~ s/^\s*//;
204: $pattern =~ s/\s*$//;
1.152 albertel 205: if ($pattern =~ /\*$/) {
206: #35.8.*
207: $pattern=~s/\*//;
208: if ($ip =~ /^\Q$pattern\E/) { $allowed=1; }
209: } elsif ($pattern =~ /(\d+\.\d+\.\d+)\.\[(\d+)-(\d+)\]$/) {
210: #35.8.3.[34-56]
211: my $low=$2;
212: my $high=$3;
213: $pattern=$1;
214: if ($ip =~ /^\Q$pattern\E/) {
215: my $last=(split(/\./,$ip))[3];
216: if ($last <=$high && $last >=$low) { $allowed=1; }
217: }
218: } elsif ($pattern =~ /^\*/) {
219: #*.msu.edu
220: $pattern=~s/\*//;
221: if (!defined($name)) {
222: use Socket;
223: my $netaddr=inet_aton($ip);
224: ($name)=gethostbyaddr($netaddr,AF_INET);
1.158 albertel 225: }
1.152 albertel 226: if ($name =~ /\Q$pattern\E$/i) { $allowed=1; }
227: } elsif ($pattern =~ /\d+\.\d+\.\d+\.\d+/) {
228: #127.0.0.1
229: if ($ip =~ /^\Q$pattern\E/) { $allowed=1; }
230: } else {
231: #some.name.com
232: if (!defined($name)) {
233: use Socket;
234: my $netaddr=inet_aton($ip);
235: ($name)=gethostbyaddr($netaddr,AF_INET);
236: }
237: if ($name =~ /\Q$pattern\E$/i) { $allowed=1; }
238: }
239: if ($allowed) { last; }
240: }
241: return $allowed;
242: }
1.198 albertel 243:
1.226 albertel 244: sub check_slot_access {
245: my ($id,$type)=@_;
246:
1.207 albertel 247: # does it pass normal muster
1.226 albertel 248: my ($status,$datemsg)=&check_access($id);
249:
1.252 albertel 250: my $useslots = &Apache::lonnet::EXT("resource.0.useslots");
1.251 albertel 251: if ($useslots ne 'resource' && $useslots ne 'map'
252: && $useslots ne 'map_map') {
1.226 albertel 253: return ($status,$datemsg);
254: }
255:
1.200 albertel 256: if ($status eq 'SHOW_ANSWER' ||
257: $status eq 'CLOSED' ||
258: $status eq 'INVALID_ACCESS' ||
259: $status eq 'UNAVAILABLE') {
260: return ($status,$datemsg);
261: }
1.204 albertel 262: if ($env{'request.state'} eq "construct") {
1.203 albertel 263: return ($status,$datemsg);
264: }
1.226 albertel 265:
266: if ($type eq 'Task') {
267: my $version=$Apache::lonhomework::history{'resource.version'};
1.230 albertel 268: if ($Apache::lonhomework::history{"resource.$version.0.checkedin"} &&
269: $Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass') {
1.226 albertel 270: return ('SHOW_ANSWER');
271: }
1.207 albertel 272: }
1.226 albertel 273:
1.210 albertel 274: my @slots=
1.252 albertel 275: (split(':',&Apache::lonnet::EXT("resource.0.availablestudent")),
276: split(':',&Apache::lonnet::EXT("resource.0.available")));
1.210 albertel 277:
1.200 albertel 278: # if (!@slots) {
279: # return ($status,$datemsg);
280: # }
281: my $slotstatus='NOT_IN_A_SLOT';
1.206 albertel 282: my ($returned_slot,$slot_name);
1.210 albertel 283: foreach my $slot (@slots) {
1.241 albertel 284: $slot =~ s/(^\s*|\s*$)//g;
1.201 albertel 285: &Apache::lonxml::debug("getting $slot");
1.200 albertel 286: my %slot=&Apache::lonnet::get_slot($slot);
1.201 albertel 287: &Apache::lonhomework::showhash(%slot);
1.200 albertel 288: if ($slot{'starttime'} < time &&
289: $slot{'endtime'} > time &&
1.201 albertel 290: &check_ip_acc($slot{'ip'})) {
1.202 albertel 291: &Apache::lonxml::debug("$slot is good");
292: $slotstatus='NEEDS_CHECKIN';
293: $returned_slot=\%slot;
1.206 albertel 294: $slot_name=$slot;
1.200 albertel 295: last;
296: }
297: }
1.202 albertel 298: if ($slotstatus eq 'NEEDS_CHECKIN' &&
1.226 albertel 299: &proctor_checked_in($slot_name,$returned_slot,$type)) {
1.202 albertel 300: &Apache::lonxml::debug("protoctor checked in");
1.200 albertel 301: $slotstatus='CAN_ANSWER';
302: }
1.226 albertel 303:
1.235 albertel 304: my ($is_correct,$got_grade,$checkedin);
1.226 albertel 305: if ($type eq 'Task') {
1.230 albertel 306: my $version=$Apache::lonhomework::history{'resource.0.version'};
1.231 albertel 307: $got_grade =
308: ($Apache::lonhomework::history{"resource.$version.0.status"}
309: =~ /^(?:pass|fail)$/);
1.235 albertel 310: $is_correct =
311: ($Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass'
312: || $Apache::lonhomework::history{"resource.0.solved"} =~ /^correct_/ );
1.226 albertel 313: $checkedin =
1.230 albertel 314: $Apache::lonhomework::history{"resource.$version.0.checkedin"};
1.226 albertel 315: } elsif ($type eq 'problem') {
1.252 albertel 316: $got_grade = 1;
317: $checkedin = $Apache::lonhomework::history{"resource.0.checkedin"};
318: $is_correct =
319: ($Apache::lonhomework::history{"resource.0.solved"} =~/^correct_/);
1.226 albertel 320: }
321:
1.235 albertel 322: &Apache::lonxml::debug(" slot is $slotstatus checkedin ($checkedin) got_grade ($got_grade) is_correct ($is_correct)");
323:
1.243 albertel 324: # no slot is currently open, and has been checked in for this version
325: # but hasn't got a grade, therefore must be awaiting a grade
326: if (!defined($slot_name)
327: && $checkedin
1.236 albertel 328: && !$got_grade) {
329: return ('WAITING_FOR_GRADE');
330: }
331:
1.252 albertel 332: # no slot is currently open, and has been checked in for this version
333: # previous slot is therefore CLOSED, so therefore the problem is
334: if (!defined($slot_name)
335: && $checkedin
336: && $type eq 'problem') {
337: return ('CLOSED',$datemsg);
338: }
339:
1.226 albertel 340: if ($slotstatus eq 'NOT_IN_A_SLOT'
341: && $checkedin ) {
342:
1.231 albertel 343: if ($got_grade) {
1.209 albertel 344: return ('SHOW_ANSWER');
345: } else {
346: return ('WAITING_FOR_GRADE');
347: }
1.226 albertel 348:
1.207 albertel 349: }
1.255 albertel 350:
1.235 albertel 351: if ( $is_correct) {
1.255 albertel 352: if ($type eq 'problem') {
353: return ($status);
354: }
1.235 albertel 355: return ('SHOW_ANSWER');
356: }
1.255 albertel 357:
1.225 albertel 358: if ( $status eq 'CANNOT_ANSWER' &&
359: ($slotstatus ne 'NEEDS_CHECKIN' && $slotstatus ne 'NOT_IN_A_SLOT')) {
360: return ($status,$datemsg);
361: }
362:
1.206 albertel 363: return ($slotstatus,$datemsg,$slot_name,$returned_slot);
1.198 albertel 364: }
1.200 albertel 365:
1.92 bowersj2 366: # JB, 9/24/2002: Any changes in this function may require a change
367: # in lonnavmaps::resource::getDateStatus.
1.53 www 368: sub check_access {
1.145 albertel 369: my ($id) = @_;
370: my $date ='';
371: my $status;
372: my $datemsg = '';
373: my $lastdate = '';
374: my $type;
375: my $passed;
376:
1.204 albertel 377: if ($env{'request.state'} eq "construct") {
378: if ($env{'form.problemstate'}) {
379: if ($env{'form.problemstate'} =~ /^CANNOT_ANSWER/) {
380: if ( ! ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct' &&
1.167 albertel 381: lc($Apache::lonhomework::problemstatus) eq 'no')) {
1.168 albertel 382: return ('CANNOT_ANSWER',
1.174 www 383: &mt('is in this state due to author settings.'));
1.167 albertel 384: }
1.165 albertel 385: } else {
1.204 albertel 386: return ($env{'form.problemstate'},
1.174 www 387: &mt('is in this state due to author settings.'));
1.165 albertel 388: }
389: }
1.145 albertel 390: &Apache::lonxml::debug("in construction ignoring dates");
391: $status='CAN_ANSWER';
1.146 albertel 392: $datemsg=&mt('is in under construction');
1.163 albertel 393: # return ($status,$datemsg);
1.145 albertel 394: }
395:
396: &Apache::lonxml::debug("checking for part :$id:");
397: &Apache::lonxml::debug("time:".time);
1.152 albertel 398:
1.261 albertel 399: my ($symb)=&Apache::lonnet::whichuser();
1.212 albertel 400: &Apache::lonxml::debug("symb:".$symb);
401: #if ($env{'request.state'} ne "construct" && $symb ne '') {
1.204 albertel 402: if ($env{'request.state'} ne "construct") {
1.163 albertel 403: my $allowed=&check_ip_acc(&Apache::lonnet::EXT("resource.$id.acc"));
404: if (!$allowed && ($Apache::lonhomework::browse ne 'F')) {
405: $status='INVALID_ACCESS';
406: $date=&mt("can not be accessed from your location.");
1.145 albertel 407: return($status,$date);
408: }
1.163 albertel 409:
1.226 albertel 410: foreach my $temp ("opendate","duedate","answerdate") {
1.163 albertel 411: $lastdate = $date;
1.247 albertel 412: if ($temp eq 'duedate') {
413: $date = &due_date($id);
414: } else {
415: $date = &Apache::lonnet::EXT("resource.$id.$temp");
416: }
417:
1.163 albertel 418: my $thistype = &Apache::lonnet::EXT("resource.$id.$temp.type");
419: if ($thistype =~ /^(con_lost|no_such_host)/ ||
420: $date =~ /^(con_lost|no_such_host)/) {
421: $status='UNAVAILABLE';
422: $date=&mt("may open later.");
423: return($status,$date);
424: }
425: if ($thistype eq 'date_interval') {
426: if ($temp eq 'opendate') {
427: $date=&Apache::lonnet::EXT("resource.$id.duedate")-$date;
428: }
429: if ($temp eq 'answerdate') {
430: $date=&Apache::lonnet::EXT("resource.$id.duedate")+$date;
431: }
1.145 albertel 432: }
1.163 albertel 433: &Apache::lonxml::debug("found :$date: for :$temp:");
434: if ($date eq '') {
435: $date = &mt("an unknown date"); $passed = 0;
436: } elsif ($date eq 'con_lost') {
437: $date = &mt("an indeterminate date"); $passed = 0;
438: } else {
439: if (time < $date) { $passed = 0; } else { $passed = 1; }
440: $date = localtime $date;
1.145 albertel 441: }
1.163 albertel 442: if (!$passed) { $type=$temp; last; }
1.145 albertel 443: }
1.163 albertel 444: &Apache::lonxml::debug("have :$type:$passed:");
445: if ($passed) {
446: $status='SHOW_ANSWER';
447: $datemsg=$date;
448: } elsif ($type eq 'opendate') {
449: $status='CLOSED';
450: $datemsg = &mt("will open on")." $date";
451: } elsif ($type eq 'duedate') {
452: $status='CAN_ANSWER';
453: $datemsg = &mt("is due at")." $date";
454: } elsif ($type eq 'answerdate') {
455: $status='CLOSED';
456: $datemsg = &mt("was due on")." $lastdate".&mt(", and answers will be available on")." $date";
1.145 albertel 457: }
458: }
1.212 albertel 459: if ($status eq 'CAN_ANSWER' ||
460: (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED'))) {
1.145 albertel 461: #check #tries, and if correct.
462: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
463: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
464: if ( $tries eq '' ) { $tries = '0'; }
1.164 albertel 465: if ( $maxtries eq '' &&
1.204 albertel 466: $env{'request.state'} ne 'construct') { $maxtries = '2'; }
1.164 albertel 467: if ($maxtries && $tries >= $maxtries) { $status = 'CANNOT_ANSWER'; }
1.145 albertel 468: # if (correct and show prob status) or excused then CANNOT_ANSWER
469: if(($Apache::lonhomework::history{"resource.$id.solved"}=~/^correct/
470: &&
471: lc($Apache::lonhomework::problemstatus) ne 'no')
472: ||
473: $Apache::lonhomework::history{"resource.$id.solved"}=~/^excused/) {
474: $status = 'CANNOT_ANSWER';
475: }
1.121 albertel 476: }
1.181 albertel 477: if ($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER') {
1.177 albertel 478: my $interval=&Apache::lonnet::EXT("resource.$id.interval");
479: &Apache::lonxml::debug("looking for interval $interval");
480: if ($interval) {
481: my $first_access=&Apache::lonnet::get_first_access('map');
482: &Apache::lonxml::debug("looking for accesstime $first_access");
483: if (!$first_access) {
484: $status='NOT_YET_VIEWED';
1.247 albertel 485: my $due_date = &due_date($id);
1.256 albertel 486: my $seconds_left = $due_date - time;
487: if ($seconds_left > $interval || $due_date eq '') {
488: $seconds_left = $interval;
489: }
490: $datemsg=&seconds_to_human_length($seconds_left);
1.177 albertel 491: }
492: }
493: }
1.247 albertel 494:
1.133 albertel 495: #if (($status ne 'CLOSED') && ($Apache::lonhomework::type eq 'exam') &&
496: # (!$Apache::lonhomework::history{"resource.0.outtoken"})) {
497: # return ('UNCHECKEDOUT','needs to be checked out');
498: #}
1.54 www 499:
500:
1.145 albertel 501: &Apache::lonxml::debug("sending back :$status:$datemsg:");
502: if (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED')) {
503: &Apache::lonxml::debug("should be allowed to browse a resource when closed");
504: $status='CAN_ANSWER';
1.146 albertel 505: $datemsg=&mt('is closed but you are allowed to view it');
1.145 albertel 506: }
1.106 albertel 507:
1.145 albertel 508: return ($status,$datemsg);
1.20 albertel 509: }
1.247 albertel 510: # this should work exactly like the copy in lonnavmaps.pm
1.246 albertel 511: sub due_date {
1.250 albertel 512: my ($part_id,$symb,$udom,$uname)=@_;
1.246 albertel 513: my $date;
1.250 albertel 514: my $interval= &Apache::lonnet::EXT("resource.$part_id.interval",$symb,
515: $udom,$uname);
1.247 albertel 516: &Apache::lonxml::debug("looking for interval $part_id $symb $interval");
1.250 albertel 517: my $due_date= &Apache::lonnet::EXT("resource.$part_id.duedate",$symb,
518: $udom,$uname);
1.247 albertel 519: &Apache::lonxml::debug("looking for due_date $part_id $symb $due_date");
1.257 albertel 520: if ($interval =~ /\d+/) {
1.246 albertel 521: my $first_access=&Apache::lonnet::get_first_access('map',$symb);
1.257 albertel 522: &Apache::lonxml::debug("looking for first_access $first_access");
1.247 albertel 523: if (defined($first_access)) {
524: $interval = $first_access+$interval;
525: $date = ($interval < $due_date)? $interval : $due_date;
526: } else {
527: $date = $due_date;
528: }
529: } else {
530: $date = $due_date;
1.246 albertel 531: }
532: return $date
533: }
534:
1.192 albertel 535: sub seconds_to_human_length {
536: my ($length)=@_;
537:
538: my $seconds=$length%60; $length=int($length/60);
539: my $minutes=$length%60; $length=int($length/60);
540: my $hours=$length%24; $length=int($length/24);
541: my $days=$length;
542:
543: my $timestr;
544: if ($days > 0) { $timestr.=&mt('[quant,_1,day]',$days); }
545: if ($hours > 0) { $timestr.=($timestr?", ":"").
546: &mt('[quant,_1,hour]',$hours); }
547: if ($minutes > 0) { $timestr.=($timestr?", ":"").
548: &mt('[quant,_1,minute]',$minutes); }
549: if ($seconds > 0) { $timestr.=($timestr?", ":"").
550: &mt('[quant,_1,second]',$seconds); }
551: return $timestr;
552: }
553:
1.41 albertel 554: sub showhash {
1.145 albertel 555: my (%hash) = @_;
556: &showhashsubset(\%hash,'.');
557: return '';
1.79 albertel 558: }
559:
1.106 albertel 560: sub showarray {
561: my ($array)=@_;
562: my $string="(";
563: foreach my $elm (@{ $array }) {
1.193 albertel 564: if (ref($elm) eq 'ARRAY') {
565: $string.=&showarray($elm);
566: } elsif (ref($elm) eq 'HASH') {
567: $string.= "HASH --- \n<br />";
568: $string.= &showhashsubset($elm,'.');
1.106 albertel 569: } else {
570: $string.="$elm,"
571: }
572: }
573: chop($string);
574: $string.=")";
575: return $string;
576: }
577:
1.79 albertel 578: sub showhashsubset {
1.145 albertel 579: my ($hash,$keyre) = @_;
580: my $resultkey;
581: foreach $resultkey (sort keys %$hash) {
1.193 albertel 582: if ($resultkey !~ /$keyre/) { next; }
583: if (ref($$hash{$resultkey}) eq 'ARRAY' ) {
584: &Apache::lonxml::debug("$resultkey ---- ".
585: &showarray($$hash{$resultkey}));
586: } elsif (ref($$hash{$resultkey}) eq 'HASH' ) {
587: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
588: &showhashsubset($$hash{$resultkey},'.');
589: } else {
590: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
1.145 albertel 591: }
592: }
593: &Apache::lonxml::debug("\n<br />restored values^</br>\n");
594: return '';
1.41 albertel 595: }
596:
597: sub setuppermissions {
1.204 albertel 598: $Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$env{'request.filename'});
599: my $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'});
1.145 albertel 600: if (! $viewgrades &&
1.204 albertel 601: exists($env{'request.course.sec'}) &&
602: $env{'request.course.sec'} !~ /^\s*$/) {
603: $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'}.
604: '/'.$env{'request.course.sec'});
1.145 albertel 605: }
1.244 albertel 606: $Apache::lonhomework::viewgrades = $viewgrades;
607:
1.185 albertel 608: if ($Apache::lonhomework::browse eq 'F' &&
1.204 albertel 609: $env{'form.devalidatecourseresdata'} eq 'on') {
1.261 albertel 610: my (undef,$courseid) = &Apache::lonnet::whichuser();
1.204 albertel 611: &Apache::lonnet::devalidatecourseresdata($env{"course.$courseid.num"},
612: $env{"course.$courseid.domain"});
1.185 albertel 613: }
1.244 albertel 614:
1.205 albertel 615: my $modifygrades = &Apache::lonnet::allowed('mgr',$env{'request.course.id'});
616: if (! $modifygrades &&
617: exists($env{'request.course.sec'}) &&
618: $env{'request.course.sec'} !~ /^\s*$/) {
619: $modifygrades =
620: &Apache::lonnet::allowed('mgr',$env{'request.course.id'}.
621: '/'.$env{'request.course.sec'});
622: }
623: $Apache::lonhomework::modifygrades = $modifygrades;
1.244 albertel 624:
625: my $queuegrade = &Apache::lonnet::allowed('mqg',$env{'request.course.id'});
626: if (! $queuegrade &&
627: exists($env{'request.course.sec'}) &&
628: $env{'request.course.sec'} !~ /^\s*$/) {
629: $queuegrade =
630: &Apache::lonnet::allowed('qgr',$env{'request.course.id'}.
631: '/'.$env{'request.course.sec'});
632: }
633: $Apache::lonhomework::queuegrade = $queuegrade;
1.205 albertel 634: return '';
1.41 albertel 635: }
636:
1.253 albertel 637: sub unset_permissions {
638: undef($Apache::lonhomework::queuegrade);
639: undef($Apache::lonhomework::modifygrades);
640: undef($Apache::lonhomework::viewgrades);
641: undef($Apache::lonhomework::browse);
642: }
643:
1.41 albertel 644: sub setupheader {
1.120 albertel 645: my $request=$_[0];
1.197 albertel 646: &Apache::loncommon::content_type($request,'text/html');
1.120 albertel 647: if (!$Apache::lonxml::debug && ($ENV{'REQUEST_METHOD'} eq 'GET')) {
648: &Apache::loncommon::no_cache($request);
649: }
1.196 albertel 650: # $request->set_last_modified(&Apache::lonnet::metadata($request->uri,
651: # 'lastrevisiondate'));
1.120 albertel 652: $request->send_http_header;
653: return OK if $request->header_only;
654: return ''
1.41 albertel 655: }
1.35 albertel 656:
1.47 albertel 657: sub handle_save_or_undo {
1.145 albertel 658: my ($request,$problem,$result) = @_;
659: my $file = &Apache::lonnet::filelocation("",$request->uri);
660: my $filebak =$file.".bak";
661: my $filetmp =$file.".tmp";
662: my $error=0;
1.204 albertel 663: if ($env{'form.Undo'} eq &mt('undo')) {
1.145 albertel 664: my $error=0;
665: if (!copy($file,$filetmp)) { $error=1; }
666: if ((!$error) && (!copy($filebak,$file))) { $error=1; }
667: if ((!$error) && (!move($filetmp,$filebak))) { $error=1; }
668: if (!$error) {
1.266 albertel 669: &Apache::lonxml::info("<p><b>".
670: &mt("Undid changes, Switched [_1] and [_2]",
671: '<span class="LC_filename">'.$filebak.
672: '</span>',
673: '<span class="LC_filename">'.$file.
674: '</span>')."</b></p>");
1.145 albertel 675: } else {
1.266 albertel 676: &Apache::lonxml::info("<p><span class=\"LC_error\">".
677: &mt("Unable to undo, unable to switch [_1] and [_2]",
678: '<span class="LC_filename">'.
679: $filebak.'</span>',
680: '<span class="LC_filename">'.
681: $file.'</span>')."</span></p>");
1.145 albertel 682: $error=1;
683: }
1.52 albertel 684: } else {
1.262 banghart 685: &Apache::lonnet::correct_line_ends($result);
1.145 albertel 686: my $fs=Apache::File->new(">$filebak");
687: if (defined($fs)) {
688: print $fs $$problem;
1.266 albertel 689: &Apache::lonxml::info("<b>".&mt("Making Backup to [_1]",
690: '<span class="LC_filename">'.
691: $filebak.'</span>').
692: "</b>");
1.145 albertel 693: } else {
1.266 albertel 694: &Apache::lonxml::info("<span class=\"LC_error\">".
695: &mt("Unable to make backup [_1]",
696: '<span class="LC_filename">'.
697: $filebak.'</span>')."</span>");
1.145 albertel 698: $error=2;
699: }
700: my $fh=Apache::File->new(">$file");
701: if (defined($fh)) {
702: print $fh $$result;
1.266 albertel 703: &Apache::lonxml::info("<b>".&mt("Saving Modifications to [_1]",
704: '<span class="LC_filename">'.
705: $file.'</span>' )."</b>");
1.145 albertel 706: } else {
1.266 albertel 707: &Apache::lonxml::info('<span class="LC_error">'.
708: &mt("Unable to write to [_1]",
709: '<span class="LC_filename">'.
710: $file.'</span>').
711: '</span>');
1.145 albertel 712: $error|=4;
713: }
1.52 albertel 714: }
1.145 albertel 715: return $error;
1.64 albertel 716: }
717:
1.101 albertel 718: sub analyze_header {
719: my ($request) = @_;
1.238 albertel 720: my $result =
1.240 albertel 721: &Apache::loncommon::start_page('Analyzing a problem',undef);
722:
1.238 albertel 723: $result .=
724: &Apache::lonxml::message_location().'
1.101 albertel 725: <form name="lonhomework" method="POST" action="'.
1.204 albertel 726: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
1.179 albertel 727: &Apache::structuretags::remember_problem_state().'
1.146 albertel 728: <input type="submit" name="problemmode" value="'.&mt("EditXML").'" />
729: <input type="submit" name="problemmode" value="'.&mt('Edit').'" />
1.101 albertel 730: <hr />
1.146 albertel 731: <input type="submit" name="submit" value="'.&mt("View").'" />
1.101 albertel 732: <hr />
733: </form>';
1.171 albertel 734: &Apache::lonxml::add_messages(\$result);
1.101 albertel 735: $request->print($result);
736: $request->rflush();
737: }
738:
1.109 albertel 739: sub analyze_footer {
740: my ($request) = @_;
1.237 albertel 741: $request->print(&Apache::loncommon::end_page());
1.109 albertel 742: $request->rflush();
743: }
744:
1.74 albertel 745: sub analyze {
1.101 albertel 746: my ($request,$file) = @_;
747: &Apache::lonxml::debug("Analyze");
748: my $result;
749: my %overall;
1.219 www 750: my %seedexample;
1.101 albertel 751: my %allparts;
1.204 albertel 752: my $rndseed=$env{'form.rndseed'};
1.101 albertel 753: &analyze_header($request);
1.114 albertel 754: my %prog_state=
1.146 albertel 755: &Apache::lonhtmlcommon::Create_PrgWin($request,&mt('Analyze Progress'),
756: &mt('Getting Problem Variants'),
1.204 albertel 757: $env{'form.numtoanalyze'},
1.175 albertel 758: 'inline',undef);
1.204 albertel 759: for(my $i=1;$i<$env{'form.numtoanalyze'}+1;$i++) {
1.114 albertel 760: &Apache::lonhtmlcommon::Increment_PrgWin($request,\%prog_state,
1.146 albertel 761: &mt('last problem'));
1.182 albertel 762: if (&Apache::loncommon::connection_aborted($request)) { return; }
1.219 www 763: my $thisseed=$i+$rndseed;
1.101 albertel 764: my $subresult=&Apache::lonnet::ssi($request->uri,
765: ('grade_target' => 'analyze'),
1.219 www 766: ('rndseed' => $thisseed));
1.101 albertel 767: (my $garbage,$subresult)=split(/_HASH_REF__/,$subresult,2);
768: my %analyze=&Apache::lonnet::str2hash($subresult);
1.114 albertel 769: my @parts;
770: if (defined(@{ $analyze{'parts'} })) {
771: @parts=@{ $analyze{'parts'} };
772: }
1.101 albertel 773: foreach my $part (@parts) {
774: if (!exists($allparts{$part})) {$allparts{$part}=1;};
1.109 albertel 775: if ($analyze{$part.'.type'} eq 'numericalresponse' ||
776: $analyze{$part.'.type'} eq 'stringresponse' ||
777: $analyze{$part.'.type'} eq 'formularesponse' ) {
1.263 albertel 778: foreach my $name (keys(%{ $analyze{$part.'.answer'} })) {
779: my $i=0;
780: foreach my $answer_part (@{ $analyze{$part.'.answer'}{$name} }) {
781: push( @{ $overall{$part.'.answer'}[$i] },
782: $answer_part);
783: my $concatanswer= join("\0",@{ $answer_part });
784: if (($concatanswer eq '') || ($concatanswer=~/^\@/)) {
1.266 albertel 785: $answer_part = ['<span class="LC_error">'.&mt('Error').'</span>'];
1.263 albertel 786: }
787: $seedexample{join("\0",$part,$i,@{$answer_part})}=
788: $thisseed;
789: $i++;
790: }
1.219 www 791: }
1.101 albertel 792: }
793: }
794: }
1.114 albertel 795: &Apache::lonhtmlcommon::Update_PrgWin($request,\%prog_state,
1.146 albertel 796: &mt('Analyzing Results'));
1.175 albertel 797: $request->print('<hr />'.&mt('List of possible answers').': ');
1.134 albertel 798: foreach my $part (sort(keys(%allparts))) {
1.109 albertel 799: if (defined(@{ $overall{$part.'.answer'} })) {
1.263 albertel 800: for (my $i=0;$i<scalar(@{ $overall{$part.'.answer'} });$i++) {
801: my $num_cols=scalar(@{ $overall{$part.'.answer'}[$i][0] });
802: $request->print('<table class="thinborder"><tr><th colspan="'.($num_cols+1).'">'.&mt('Part').' '.$part);
803: if (scalar(@{ $overall{$part.'.answer'} }) > 1) {
804: $request->print(&mt(' Answer [_1]',$i+1));
805: }
806: $request->print('</th></tr>');
807: my %frequency;
808: foreach my $answer (sort {$a->[0] <=> $b->[0]} (@{ $overall{$part.'.answer'}[$i] })) {
809: $frequency{join("\0",@{ $answer })}++;
810: }
811: $request->print('<tr><th colspan="'.($num_cols).'">'.&mt('Answer').'</th><th>'.&mt('Frequency').'<br />('
812: .&mt('click for example').')</th></tr>');
813: foreach my $answer (sort {(split("\0",$a))[0] <=> (split("\0",$b))[0]} (keys(%frequency))) {
814: $request->print('<tr><td class="center">'.
815: join('</td><td class="center">',split("\0",$answer)).
816: '</td><td class="center"><a href="'.$request->uri.'?rndseed='.$seedexample{join("\0",$part,$i,$answer)}.'">'.$frequency{$answer}.
817: '</a></td></tr>');
818: }
819: $request->print('</table>');
1.109 albertel 820: }
821: } else {
1.162 albertel 822: $request->print('<p>'.&mt('Response').' '.$part.' '.
1.146 albertel 823: &mt('is not analyzable at this time').'</p>');
1.101 albertel 824: }
825: }
1.130 albertel 826: if (scalar(keys(%allparts)) == 0 ) {
1.215 raeburn 827: $request->print('<p>'.&mt('Found no analyzable responses in this problem, currently only Numerical, Formula and String response styles are supported.').'</p>');
1.130 albertel 828: }
1.114 albertel 829: &Apache::lonhtmlcommon::Close_PrgWin($request,\%prog_state);
1.109 albertel 830: &analyze_footer($request);
1.101 albertel 831: &Apache::lonhomework::showhash(%overall);
832: return $result;
1.74 albertel 833: }
834:
1.64 albertel 835: sub editxmlmode {
1.145 albertel 836: my ($request,$file) = @_;
837: my $result;
838: my $problem=&Apache::lonnet::getfile($file);
839: if ($problem eq -1) {
1.146 albertel 840: &Apache::lonxml::error("<b> ".&mt('Unable to find').
841: " <i>$file</i></b>");
1.145 albertel 842: $problem='';
843: }
1.204 albertel 844: if (defined($env{'form.editxmltext'}) || defined($env{'form.Undo'})) {
1.145 albertel 845: my $error=&handle_save_or_undo($request,\$problem,
1.204 albertel 846: \$env{'form.editxmltext'});
1.145 albertel 847: if (!$error) { $problem=&Apache::lonnet::getfile($file); }
848: }
1.204 albertel 849: &Apache::lonhomework::showhashsubset(\%env,'^form');
850: if ( $env{'form.submit'} eq &mt('Submit Changes and View') ) {
851: &Apache::lonhomework::showhashsubset(\%env,'^form');
852: $env{'form.problemmode'}='View';
1.145 albertel 853: &renderpage($request,$file);
854: } else {
855: my ($rows,$cols) = &Apache::edit::textarea_sizes(\$problem);
1.160 www 856: my $xml_help = '<table><tr><td>'.
857: &Apache::loncommon::helpLatexCheatsheet("Problem_Editor_XML_Index",
858: "Problem Editing Help").
859: '</td><td>'.
1.254 albertel 860: &Apache::loncommon::help_open_menu(undef,undef,5,'Authoring').
1.178 albertel 861: '</td></tr></table>';
1.145 albertel 862: if ($cols > 80) { $cols = 80; }
863: if ($cols < 70) { $cols = 70; }
864: if ($rows < 20) { $rows = 20; }
1.238 albertel 865: my $start_page =
1.265 albertel 866: &Apache::loncommon::start_page(&mt("EditXML [_1]",$file),
867: &Apache::edit::js_change_detection(),
868: {'no_auto_mt_title' => 1,});
1.227 albertel 869:
1.238 albertel 870: $result.=$start_page.
1.213 albertel 871: &renderpage($request,$file,['no_output_web'],1).
872: &Apache::lonxml::message_location().'
1.227 albertel 873: <form '.&Apache::edit::form_change_detection().' name="lonhomework" method="POST" action="'.
1.204 albertel 874: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
1.179 albertel 875: &Apache::structuretags::remember_problem_state().'
1.146 albertel 876: <input type="hidden" name="problemmode" value="'.&mt('EditXML').'" />
1.170 matthew 877: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
1.232 albertel 878: <input type="submit" '.&Apache::edit::submit_ask_anyway().'name="problemmode" accesskey="e" value="'.&mt('Edit').'" />
1.228 albertel 879: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.64 albertel 880: <hr />
1.170 matthew 881: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes').'" />
882: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" />
1.64 albertel 883: <hr />
1.110 albertel 884: ' . $xml_help . '
1.227 albertel 885: <textarea '.&Apache::edit::element_change_detection().' style="width:100%" rows="'.$rows.'" cols="'.$cols.'" name="editxmltext">'.
1.229 albertel 886: &HTML::Entities::encode($problem,'<>&"').'</textarea><br />
887: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes').'" />
888: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" />
1.238 albertel 889: </form>'.&Apache::loncommon::end_page();
1.171 albertel 890: &Apache::lonxml::add_messages(\$result);
1.145 albertel 891: $request->print($result);
892: }
893: return '';
1.47 albertel 894: }
1.189 albertel 895:
1.188 foxr 896: #
897: # Render the page in whatever target desired.
898: #
1.41 albertel 899: sub renderpage {
1.213 albertel 900: my ($request,$file,$targets,$return_string) = @_;
1.52 albertel 901:
1.211 albertel 902: my @targets = @{$targets || [&get_target()]};
1.204 albertel 903: &Apache::lonhomework::showhashsubset(\%env,'form.');
1.145 albertel 904: &Apache::lonxml::debug("Running targets ".join(':',@targets));
1.268 albertel 905:
1.171 albertel 906: my $overall_result;
1.145 albertel 907: foreach my $target (@targets) {
1.183 albertel 908: # FIXME need to do something intelligent when a problem goes
909: # from viewable to not viewable due to map conditions
910: #&setuppermissions();
911: #if ( $Apache::lonhomework::browse ne '2'
912: # && $Apache::lonhomework::browse ne 'F' ) {
913: # $request->print(" You most likely shouldn't see me.");
914: #}
1.145 albertel 915: #my $t0 = [&gettimeofday()];
1.211 albertel 916: my $output=1;
917: if ($target eq 'no_output_web') {
918: $target = 'web'; $output=0;
919: }
1.145 albertel 920: my $problem=&Apache::lonnet::getfile($file);
1.222 albertel 921: my $result;
1.145 albertel 922: if ($problem eq -1) {
1.260 albertel 923: $problem='';
1.222 albertel 924: my $filename=(split('/',$file))[-1];
1.260 albertel 925: my $error =
926: "<b> ".&mt('Unable to find [_1]',
927: ' <span class="LC_filename">'.$filename.'</span>')
928: ."</b>";
929: $result.=
930: &Apache::loncommon::simple_error_page($request,'Not available',
931: $error);
932: return;
1.145 albertel 933: }
1.52 albertel 934:
1.145 albertel 935: my %mystyle;
936: if ($target eq 'analyze') { %Apache::lonhomework::analyze=(); }
937: if ($target eq 'answer') { &showhash(%Apache::lonhomework::history); }
1.204 albertel 938: if ($target eq 'web') {&Apache::lonhomework::showhashsubset(\%env,'^form');}
1.145 albertel 939:
940: &Apache::lonxml::debug("Should be parsing now");
1.222 albertel 941: $result .= &Apache::lonxml::xmlparse($request, $target, $problem,
942: &setup_vars($target),%mystyle);
1.268.2.1 albertel 943: &finished_parsing();
1.214 albertel 944: if (!$output) { $result = ''; }
1.145 albertel 945: #$request->print("Result follows:");
946: if ($target eq 'modified') {
947: &handle_save_or_undo($request,\$problem,\$result);
948: } else {
949: if ($target eq 'analyze') {
950: $result=&Apache::lonnet::hashref2str(\%Apache::lonhomework::analyze);
951: undef(%Apache::lonhomework::analyze);
952: }
953: #my $td=&tv_interval($t0);
954: #if ( $Apache::lonxml::debug) {
955: #$result =~ s:</body>::;
956: #$result.="<br />Spent $td seconds processing target $target\n</body>";
957: #}
1.171 albertel 958: # $request->print($result);
959: $overall_result.=$result;
960: # $request->rflush();
1.145 albertel 961: }
962: #$request->print(":Result ends");
963: #my $td=&tv_interval($t0);
1.52 albertel 964: }
1.213 albertel 965: if (!$return_string) {
966: &Apache::lonxml::add_messages(\$overall_result);
967: $request->print($overall_result);
968: $request->rflush();
969: } else {
970: return $overall_result;
971: }
1.41 albertel 972: }
973:
1.268.2.1 albertel 974: sub finished_parsing {
975: undef($Apache::lonhomework::parsing_a_problem);
976: undef($Apache::lonhomework::parsing_a_task);
977: }
978:
1.42 albertel 979: # with no arg it returns a HTML <option> list of the template titles
980: # with one arg it returns the filename associated with the arg passed
981: sub get_template_list {
1.145 albertel 982: my ($namewanted,$extension) = @_;
983: my $result;
984: my @allnames;
985: &Apache::lonxml::debug("Looking for :$extension:");
986: foreach my $file (</home/httpd/html/res/adm/includes/templates/*.$extension>) {
1.268 albertel 987: &Apache::lonxml::debug("Looking at $file");
1.145 albertel 988: my $name=&Apache::lonnet::metadata($file,'title');
1.268 albertel 989: &Apache::lonxml::debug("Got a name $name");
1.145 albertel 990: if ($namewanted && ($name eq $namewanted)) {
991: $result=$file;
992: last;
993: } else {
994: if ($name) { push (@allnames, $name); }
995: }
996: }
997: if (@allnames && !$result) {
1.146 albertel 998: $result="<option>".&mt("Select a")." $extension ".&mt('template')."</option>\n<option>".
1.145 albertel 999: join('</option><option>',sort(@allnames)).'</option>';
1.42 albertel 1000: }
1.145 albertel 1001: return $result;
1.42 albertel 1002: }
1003:
1004: sub newproblem {
1.65 matthew 1005: my ($request) = @_;
1006: my $extension=$request->uri;
1007: $extension=~s:^.*\.([\w]+)$:$1:;
1008: &Apache::lonxml::debug("Looking for :$extension:");
1.131 albertel 1009: my $templatelist=&get_template_list('',$extension);
1.204 albertel 1010: if ($env{'form.template'} &&
1011: $env{'form.template'} ne "Select a $extension template") {
1.65 matthew 1012: use File::Copy;
1.204 albertel 1013: my $file = &get_template_list($env{'form.template'},$extension);
1.65 matthew 1014: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1015: copy($file,$dest);
1016: &renderpage($request,$dest);
1.204 albertel 1017: } elsif($env{'form.newfile'} && !$templatelist) {
1.131 albertel 1018: # I don't like hard-coded filenames but for now, this will work.
1019: use File::Copy;
1020: my $templatefilename =
1.258 albertel 1021: $request->dir_config('lonIncludes').'/templates/blank.'.$extension;
1.131 albertel 1022: &Apache::lonxml::debug("$templatefilename");
1023: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1024: copy($templatefilename,$dest);
1025: &renderpage($request,$dest);
1.85 albertel 1026: } else {
1.176 albertel 1027: my $url=&HTML::Entities::encode($request->uri,'<>&"');
1028: my $shownurl=$url;
1.157 albertel 1029: $shownurl=~s-^/~-/priv/-;
1.65 matthew 1030: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1.128 albertel 1031: my $errormsg;
1.204 albertel 1032: if ($env{'form.newfile'}) {
1.266 albertel 1033: $errormsg='<p><span class="LC_error">'.&mt('You did not select a template.').'</span></p>'."\n";
1.128 albertel 1034: }
1.85 albertel 1035: my $instructions;
1.240 albertel 1036: my $start_page =
1037: &Apache::loncommon::start_page("Create New $extension");
1.258 albertel 1038: $request->print("
1.240 albertel 1039: $start_page
1.258 albertel 1040: <h1>".&mt("Creating a new $extension resource.")."</h1>
1.128 albertel 1041: $errormsg
1.258 albertel 1042: ".&mt("The requested file [_1] currently does not exist.",
1043: "<tt>$shownurl</tt>")."
1.105 www 1044: <p>
1.258 albertel 1045: <b>
1046: ".&mt("To create a new $extension, select a template from the".
1047: "pull-down menu below. Then click on the \"Create $extension\" button.")."</b>
1.259 albertel 1048: </p><form action=\"$url\" method=\"POST\">");
1.258 albertel 1049:
1.85 albertel 1050: if (defined($templatelist)) {
1051: $request->print("<select name=\"template\">$templatelist</select>");
1052: }
1.146 albertel 1053: $request->print("<br /><input type=\"submit\" name=\"newfile\" value=\"".&mt('Create')." $extension\" />");
1.238 albertel 1054: $request->print("</form></p>".&Apache::loncommon::end_page());
1.65 matthew 1055: }
1056: return '';
1.42 albertel 1057: }
1058:
1.268 albertel 1059: sub update_construct_style {
1060: if ($env{'request.state'} eq "construct"
1061: && $env{'form.problemmode'} eq &mt('View')
1062: && defined($env{'form.submitted'})
1063: && !defined($env{'form.resetdata'})
1064: && !defined($env{'form.newrandomization'})) {
1065: if ((!$env{'form.style_file'} && $env{'construct.style'})
1066: ||$env{'form.clear_style_file'}) {
1067: &Apache::lonnet::delenv('construct\\.style');
1068: } elsif ($env{'form.style_file'}
1069: && $env{'construct.style'} ne $env{'form.style_file'}) {
1070: &Apache::lonnet::appenv('construct.style' =>
1071: $env{'form.style_file'});
1072: }
1073: }
1074: }
1075:
1076:
1.41 albertel 1077: sub handler {
1.145 albertel 1078: #my $t0 = [&gettimeofday()];
1079: my $request=$_[0];
1.223 albertel 1080: $Apache::lonxml::request=$request;
1.204 albertel 1081: $Apache::lonxml::debug=$env{'user.debug'};
1082: $env{'request.uri'}=$request->uri;
1.180 albertel 1083: &setuppermissions();
1.145 albertel 1084: # some times multiple problemmodes are submitted, need to select
1085: # the last one
1.204 albertel 1086: if ( defined($env{'form.problemmode'}) && ref($env{'form.problemmode'}) ) {
1087: my $mode=$env{'form.problemmode'}->[-1];
1088: undef $env{'form.problemmode'};
1089: $env{'form.problemmode'}=$mode;
1.145 albertel 1090: }
1.193 albertel 1091:
1.145 albertel 1092: my $file=&Apache::lonnet::filelocation("",$request->uri);
1093:
1094: #check if we know where we are
1.204 albertel 1095: if ($env{'request.course.fn'} && !&Apache::lonnet::symbread()) {
1.145 albertel 1096: # if we are browsing we might not be able to know where we are
1.173 albertel 1097: if ($Apache::lonhomework::browse ne 'F' &&
1.204 albertel 1098: $env{'request.state'} ne "construct") {
1.145 albertel 1099: #should know where we are, so ask
1.253 albertel 1100: &unset_permissions();
1101: $request->internal_redirect('/adm/ambiguous');
1102: return OK;
1.145 albertel 1103: }
1104: }
1.253 albertel 1105: if (&setupheader($request)) {
1106: &unset_permissions();
1107: return OK;
1108: }
1.244 albertel 1109: &Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:$Apache::lonhomework::modifygrades:$Apache::lonhomework::queuegrade");
1.204 albertel 1110: &Apache::lonxml::debug("Problem Mode ".$env{'form.problemmode'});
1.261 albertel 1111: my ($symb) = &Apache::lonnet::whichuser();
1.145 albertel 1112: &Apache::lonxml::debug('symb is '.$symb);
1.204 albertel 1113: if ($env{'request.state'} eq "construct") {
1.145 albertel 1114: if ( -e $file ) {
1115: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1116: ['problemmode']);
1.204 albertel 1117: if (!(defined $env{'form.problemmode'})) {
1.145 albertel 1118: #first visit to problem in construction space
1.204 albertel 1119: $env{'form.problemmode'}='View';
1.145 albertel 1120: &renderpage($request,$file);
1.204 albertel 1121: } elsif ($env{'form.problemmode'} eq &mt('EditXML') ||
1122: $env{'form.problemmode'} eq 'EditXML') {
1.145 albertel 1123: &editxmlmode($request,$file);
1.204 albertel 1124: } elsif ($env{'form.problemmode'} eq &mt('Calculate answers')) {
1.145 albertel 1125: &analyze($request,$file);
1126: } else {
1.268 albertel 1127: &update_construct_style();
1.145 albertel 1128: &renderpage($request,$file);
1129: }
1130: } else {
1131: # requested file doesn't exist in contruction space
1132: &newproblem($request);
1133: }
1134: } else {
1135: # just render the page normally outside of construction space
1136: &Apache::lonxml::debug("not construct");
1.52 albertel 1137: &renderpage($request,$file);
1.41 albertel 1138: }
1.145 albertel 1139: #my $td=&tv_interval($t0);
1140: #&Apache::lonxml::debug("Spent $td seconds processing");
1141: # always turn off debug messages
1142: $Apache::lonxml::debug=0;
1.253 albertel 1143: &unset_permissions();
1.145 albertel 1144: return OK;
1.52 albertel 1145:
1.1 albertel 1146: }
1147:
1148: 1;
1149: __END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonhomework.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / homework