Annotation of loncom/homework/lonhomework.pm, revision 1.194
1.63 albertel 1: # The LearningOnline Network with CAPA
1.52 albertel 2: # The LON-CAPA Homework handler
1.63 albertel 3: #
1.194 ! albertel 4: # $Id: lonhomework.pm,v 1.193 2005/01/28 09:48:53 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();
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();
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 {
1.189 albertel 75: &Apache::lonxml::debug("request.state = $ENV{'request.state'}");
1.188 foxr 76: if( defined($ENV{'form.grade_target'})) {
1.189 albertel 77: &Apache::lonxml::debug("form.grade_target= $ENV{'form.grade_target'}");
1.188 foxr 78: } else {
1.189 albertel 79: &Apache::lonxml::debug("form.grade_target <undefined>");
1.188 foxr 80: }
1.145 albertel 81: if (($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($ENV{'form.grade_target'} )
87: && ($Apache::lonhomework::viewgrades eq 'F' )) {
88: return ($ENV{'form.grade_target'});
89: }
90:
1.62 albertel 91: if ( defined($ENV{'form.submitted'}) &&
1.145 albertel 92: ( !defined($ENV{'form.resetdata'})) &&
93: ( !defined($ENV{'form.newrandomization'}))) {
94: return ('grade', 'web');
95: } else {
96: return ('web');
97: }
98: } elsif ($ENV{'request.state'} eq "construct") {
99: if ( defined($ENV{'form.grade_target'}) ) {
100: return ($ENV{'form.grade_target'});
101: }
102: if ( defined($ENV{'form.preview'})) {
103: if ( defined($ENV{'form.submitted'})) {
104: return ('grade', 'web');
105: } else {
106: return ('web');
107: }
108: } else {
1.150 albertel 109: if ( $ENV{'form.problemmode'} eq &mt('View') ||
110: $ENV{'form.problemmode'} eq &mt('Discard Edits and View')) {
1.145 albertel 111: if ( defined($ENV{'form.submitted'}) &&
112: (!defined($ENV{'form.resetdata'})) &&
113: (!defined($ENV{'form.newrandomization'}))) {
114: return ('grade', 'web','answer');
115: } else {
116: return ('web','answer');
117: }
1.190 albertel 118: } elsif ( $ENV{'form.problemmode'} eq &mt('Edit') ||
1.191 albertel 119: $ENV{'form.problemmode'} eq 'Edit') {
1.145 albertel 120: if ( $ENV{'form.submitted'} eq 'edit' ) {
1.150 albertel 121: if ( $ENV{'form.submit'} eq &mt('Submit Changes and View') ) {
1.145 albertel 122: return ('modified','web','answer');
123: } else {
124: return ('modified','edit');
125: }
126: } else {
127: return ('edit');
128: }
129: } else {
130: return ('web');
131: }
132: }
1.15 albertel 133: }
1.145 albertel 134: return ();
1.5 albertel 135: }
136:
1.3 albertel 137: sub setup_vars {
1.145 albertel 138: my ($target) = @_;
139: return ';'
1.11 albertel 140: # return ';$external::target='.$target.';';
1.2 albertel 141: }
142:
143: sub send_header {
1.145 albertel 144: my ($request)= @_;
145: $request->print(&Apache::lontexconvert::header());
1.16 albertel 146: # $request->print('<form name='.$ENV{'form.request.prefix'}.'lonhomework method="POST" action="'.$request->uri.'">');
1.2 albertel 147: }
148:
1.36 albertel 149: sub createmenu {
1.145 albertel 150: my ($which,$request)=@_;
151: if ($which eq 'grade') {
152: $request->print('<script language="JavaScript">
1.91 albertel 153: hwkmenu=window.open("/res/adm/pages/homeworkmenu.html","homeworkremote",
1.52 albertel 154: "height=350,width=150,menubar=no");
155: </script>');
1.145 albertel 156: }
1.36 albertel 157: }
158:
1.2 albertel 159: sub send_footer {
1.145 albertel 160: my ($request)= @_;
1.16 albertel 161: # $request->print('</form>');
1.145 albertel 162: $request->print(&Apache::lontexconvert::footer());
1.2 albertel 163: }
164:
1.52 albertel 165: $Apache::lonxml::browse='';
1.53 www 166:
1.152 albertel 167: sub check_ip_acc {
168: my ($acc)=@_;
1.154 albertel 169: if (!defined($acc) || $acc =~ /^\s*$/) { return 1; }
1.152 albertel 170: my $allowed=0;
171: my $ip=$ENV{'REMOTE_ADDR'};
172: my $name;
173: foreach my $pattern (split(',',$acc)) {
174: if ($pattern =~ /\*$/) {
175: #35.8.*
176: $pattern=~s/\*//;
177: if ($ip =~ /^\Q$pattern\E/) { $allowed=1; }
178: } elsif ($pattern =~ /(\d+\.\d+\.\d+)\.\[(\d+)-(\d+)\]$/) {
179: #35.8.3.[34-56]
180: my $low=$2;
181: my $high=$3;
182: $pattern=$1;
183: if ($ip =~ /^\Q$pattern\E/) {
184: my $last=(split(/\./,$ip))[3];
185: if ($last <=$high && $last >=$low) { $allowed=1; }
186: }
187: } elsif ($pattern =~ /^\*/) {
188: #*.msu.edu
189: $pattern=~s/\*//;
190: if (!defined($name)) {
191: use Socket;
192: my $netaddr=inet_aton($ip);
193: ($name)=gethostbyaddr($netaddr,AF_INET);
1.158 albertel 194: }
1.152 albertel 195: if ($name =~ /\Q$pattern\E$/i) { $allowed=1; }
196: } elsif ($pattern =~ /\d+\.\d+\.\d+\.\d+/) {
197: #127.0.0.1
198: if ($ip =~ /^\Q$pattern\E/) { $allowed=1; }
199: } else {
200: #some.name.com
201: if (!defined($name)) {
202: use Socket;
203: my $netaddr=inet_aton($ip);
204: ($name)=gethostbyaddr($netaddr,AF_INET);
205: }
206: if ($name =~ /\Q$pattern\E$/i) { $allowed=1; }
207: }
208: if ($allowed) { last; }
209: }
210: return $allowed;
211: }
1.92 bowersj2 212: # JB, 9/24/2002: Any changes in this function may require a change
213: # in lonnavmaps::resource::getDateStatus.
1.53 www 214: sub check_access {
1.145 albertel 215: my ($id) = @_;
216: my $date ='';
217: my $status;
218: my $datemsg = '';
219: my $lastdate = '';
220: my $temp;
221: my $type;
222: my $passed;
223:
224: if ($ENV{'request.state'} eq "construct") {
1.167 albertel 225: if ($ENV{'form.problemstate'}) {
1.165 albertel 226: if ($ENV{'form.problemstate'} =~ /^CANNOT_ANSWER/) {
1.167 albertel 227: if ( ! ($ENV{'form.problemstate'} eq 'CANNOT_ANSWER_correct' &&
228: lc($Apache::lonhomework::problemstatus) eq 'no')) {
1.168 albertel 229: return ('CANNOT_ANSWER',
1.174 www 230: &mt('is in this state due to author settings.'));
1.167 albertel 231: }
1.165 albertel 232: } else {
233: return ($ENV{'form.problemstate'},
1.174 www 234: &mt('is in this state due to author settings.'));
1.165 albertel 235: }
236: }
1.145 albertel 237: &Apache::lonxml::debug("in construction ignoring dates");
238: $status='CAN_ANSWER';
1.146 albertel 239: $datemsg=&mt('is in under construction');
1.163 albertel 240: # return ($status,$datemsg);
1.145 albertel 241: }
242:
243: &Apache::lonxml::debug("checking for part :$id:");
244: &Apache::lonxml::debug("time:".time);
1.152 albertel 245:
1.163 albertel 246: if ($ENV{'request.state'} ne "construct") {
247: my $allowed=&check_ip_acc(&Apache::lonnet::EXT("resource.$id.acc"));
248: if (!$allowed && ($Apache::lonhomework::browse ne 'F')) {
249: $status='INVALID_ACCESS';
250: $date=&mt("can not be accessed from your location.");
1.145 albertel 251: return($status,$date);
252: }
1.163 albertel 253:
254: foreach $temp ("opendate","duedate","answerdate") {
255: $lastdate = $date;
256: $date = &Apache::lonnet::EXT("resource.$id.$temp");
257: my $thistype = &Apache::lonnet::EXT("resource.$id.$temp.type");
258: if ($thistype =~ /^(con_lost|no_such_host)/ ||
259: $date =~ /^(con_lost|no_such_host)/) {
260: $status='UNAVAILABLE';
261: $date=&mt("may open later.");
262: return($status,$date);
263: }
264: if ($thistype eq 'date_interval') {
265: if ($temp eq 'opendate') {
266: $date=&Apache::lonnet::EXT("resource.$id.duedate")-$date;
267: }
268: if ($temp eq 'answerdate') {
269: $date=&Apache::lonnet::EXT("resource.$id.duedate")+$date;
270: }
1.145 albertel 271: }
1.163 albertel 272: &Apache::lonxml::debug("found :$date: for :$temp:");
273: if ($date eq '') {
274: $date = &mt("an unknown date"); $passed = 0;
275: } elsif ($date eq 'con_lost') {
276: $date = &mt("an indeterminate date"); $passed = 0;
277: } else {
278: if (time < $date) { $passed = 0; } else { $passed = 1; }
279: $date = localtime $date;
1.145 albertel 280: }
1.163 albertel 281: if (!$passed) { $type=$temp; last; }
1.145 albertel 282: }
1.163 albertel 283: &Apache::lonxml::debug("have :$type:$passed:");
284: if ($passed) {
285: $status='SHOW_ANSWER';
286: $datemsg=$date;
287: } elsif ($type eq 'opendate') {
288: $status='CLOSED';
289: $datemsg = &mt("will open on")." $date";
290: } elsif ($type eq 'duedate') {
291: $status='CAN_ANSWER';
292: $datemsg = &mt("is due at")." $date";
293: } elsif ($type eq 'answerdate') {
294: $status='CLOSED';
295: $datemsg = &mt("was due on")." $lastdate".&mt(", and answers will be available on")." $date";
1.145 albertel 296: }
297: }
298: if ($status eq 'CAN_ANSWER') {
299: #check #tries, and if correct.
300: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
301: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
302: if ( $tries eq '' ) { $tries = '0'; }
1.164 albertel 303: if ( $maxtries eq '' &&
304: $ENV{'request.state'} ne 'construct') { $maxtries = '2'; }
305: if ($maxtries && $tries >= $maxtries) { $status = 'CANNOT_ANSWER'; }
1.145 albertel 306: # if (correct and show prob status) or excused then CANNOT_ANSWER
307: if(($Apache::lonhomework::history{"resource.$id.solved"}=~/^correct/
308: &&
309: lc($Apache::lonhomework::problemstatus) ne 'no')
310: ||
311: $Apache::lonhomework::history{"resource.$id.solved"}=~/^excused/) {
312: $status = 'CANNOT_ANSWER';
313: }
1.121 albertel 314: }
1.181 albertel 315: if ($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER') {
1.177 albertel 316: my $interval=&Apache::lonnet::EXT("resource.$id.interval");
317: &Apache::lonxml::debug("looking for interval $interval");
318: if ($interval) {
319: my $first_access=&Apache::lonnet::get_first_access('map');
320: &Apache::lonxml::debug("looking for accesstime $first_access");
321: if (!$first_access) {
322: $status='NOT_YET_VIEWED';
1.192 albertel 323: $datemsg=&seconds_to_human_length($interval);
1.177 albertel 324: } else {
325: my $newdate=localtime($first_access+$interval);
326: if (time > ($first_access+$interval)) {
327: $status='CLOSED';
328: $datemsg = &mt("was due on")." $newdate".&mt(", and answers will be available on")." $date";
329: } else {
330: $datemsg = &mt("is due at")." $newdate";
331: }
332: }
333: }
334: }
1.133 albertel 335: #if (($status ne 'CLOSED') && ($Apache::lonhomework::type eq 'exam') &&
336: # (!$Apache::lonhomework::history{"resource.0.outtoken"})) {
337: # return ('UNCHECKEDOUT','needs to be checked out');
338: #}
1.54 www 339:
340:
1.145 albertel 341: &Apache::lonxml::debug("sending back :$status:$datemsg:");
342: if (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED')) {
343: &Apache::lonxml::debug("should be allowed to browse a resource when closed");
344: $status='CAN_ANSWER';
1.146 albertel 345: $datemsg=&mt('is closed but you are allowed to view it');
1.145 albertel 346: }
1.106 albertel 347:
1.145 albertel 348: return ($status,$datemsg);
1.20 albertel 349: }
350:
1.192 albertel 351: sub seconds_to_human_length {
352: my ($length)=@_;
353:
354: my $seconds=$length%60; $length=int($length/60);
355: my $minutes=$length%60; $length=int($length/60);
356: my $hours=$length%24; $length=int($length/24);
357: my $days=$length;
358:
359: my $timestr;
360: if ($days > 0) { $timestr.=&mt('[quant,_1,day]',$days); }
361: if ($hours > 0) { $timestr.=($timestr?", ":"").
362: &mt('[quant,_1,hour]',$hours); }
363: if ($minutes > 0) { $timestr.=($timestr?", ":"").
364: &mt('[quant,_1,minute]',$minutes); }
365: if ($seconds > 0) { $timestr.=($timestr?", ":"").
366: &mt('[quant,_1,second]',$seconds); }
367: return $timestr;
368: }
369:
1.41 albertel 370: sub showhash {
1.145 albertel 371: my (%hash) = @_;
372: &showhashsubset(\%hash,'.');
373: return '';
1.79 albertel 374: }
375:
1.106 albertel 376: sub showarray {
377: my ($array)=@_;
378: my $string="(";
379: foreach my $elm (@{ $array }) {
1.193 albertel 380: if (ref($elm) eq 'ARRAY') {
381: $string.=&showarray($elm);
382: } elsif (ref($elm) eq 'HASH') {
383: $string.= "HASH --- \n<br />";
384: $string.= &showhashsubset($elm,'.');
1.106 albertel 385: } else {
386: $string.="$elm,"
387: }
388: }
389: chop($string);
390: $string.=")";
391: return $string;
392: }
393:
1.79 albertel 394: sub showhashsubset {
1.145 albertel 395: my ($hash,$keyre) = @_;
396: my $resultkey;
397: foreach $resultkey (sort keys %$hash) {
1.193 albertel 398: if ($resultkey !~ /$keyre/) { next; }
399: if (ref($$hash{$resultkey}) eq 'ARRAY' ) {
400: &Apache::lonxml::debug("$resultkey ---- ".
401: &showarray($$hash{$resultkey}));
402: } elsif (ref($$hash{$resultkey}) eq 'HASH' ) {
403: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
404: &showhashsubset($$hash{$resultkey},'.');
405: } else {
406: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
1.145 albertel 407: }
408: }
409: &Apache::lonxml::debug("\n<br />restored values^</br>\n");
410: return '';
1.41 albertel 411: }
412:
413: sub setuppermissions {
1.145 albertel 414: $Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$ENV{'request.filename'});
415: my $viewgrades = &Apache::lonnet::allowed('vgr',$ENV{'request.course.id'});
416: if (! $viewgrades &&
417: exists($ENV{'request.course.sec'}) &&
418: $ENV{'request.course.sec'} !~ /^\s*$/) {
419: $viewgrades = &Apache::lonnet::allowed('vgr',$ENV{'request.course.id'}.
1.127 matthew 420: '/'.$ENV{'request.course.sec'});
1.145 albertel 421: }
1.188 foxr 422: $Apache::lonhomework::viewgrades = $viewgrades; # File global variable...dirt.
1.185 albertel 423: if ($Apache::lonhomework::browse eq 'F' &&
424: $ENV{'form.devalidatecourseresdata'} eq 'on') {
425: my (undef,$courseid) = &Apache::lonxml::whichuser();
426: &Apache::lonnet::devalidatecourseresdata($ENV{"course.$courseid.num"},
427: $ENV{"course.$courseid.domain"});
428: }
1.145 albertel 429: return ''
1.41 albertel 430: }
431:
432: sub setupheader {
1.120 albertel 433: my $request=$_[0];
434: if ($ENV{'browser.mathml'}) {
1.151 www 435: &Apache::loncommon::content_type($request,'text/xml');
1.120 albertel 436: } else {
1.151 www 437: &Apache::loncommon::content_type($request,'text/html');
1.120 albertel 438: }
439: if (!$Apache::lonxml::debug && ($ENV{'REQUEST_METHOD'} eq 'GET')) {
440: &Apache::loncommon::no_cache($request);
441: }
1.194 ! albertel 442: $request->set_last_modified(&Apache::lonnet::metadata($request->uri,
! 443: 'lastrevisiondate');
1.120 albertel 444: $request->send_http_header;
445: return OK if $request->header_only;
446: return ''
1.41 albertel 447: }
1.35 albertel 448:
1.47 albertel 449: sub handle_save_or_undo {
1.145 albertel 450: my ($request,$problem,$result) = @_;
451: my $file = &Apache::lonnet::filelocation("",$request->uri);
452: my $filebak =$file.".bak";
453: my $filetmp =$file.".tmp";
454: my $error=0;
1.156 albertel 455:
456: &Apache::lonnet::correct_line_ends($result);
1.52 albertel 457:
1.150 albertel 458: if ($ENV{'form.Undo'} eq &mt('undo')) {
1.145 albertel 459: my $error=0;
460: if (!copy($file,$filetmp)) { $error=1; }
461: if ((!$error) && (!copy($filebak,$file))) { $error=1; }
462: if ((!$error) && (!move($filetmp,$filebak))) { $error=1; }
463: if (!$error) {
1.171 albertel 464: &Apache::lonxml::info("<p><b>".&mt("Undid changes, Switched")." $filebak ".&mt("and")." $file</b></p>");
1.145 albertel 465: } else {
1.171 albertel 466: &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 467: $error=1;
468: }
1.52 albertel 469: } else {
1.145 albertel 470: my $fs=Apache::File->new(">$filebak");
471: if (defined($fs)) {
472: print $fs $$problem;
1.171 albertel 473: &Apache::lonxml::info("<b>".&mt("Making Backup to").
474: " $filebak</b>");
1.145 albertel 475: } else {
1.171 albertel 476: &Apache::lonxml::info("<font color=\"red\" size=\"+1\"><b>".&mt("Unable to make backup")." $filebak</b></font>");
1.145 albertel 477: $error=2;
478: }
479: my $fh=Apache::File->new(">$file");
480: if (defined($fh)) {
481: print $fh $$result;
1.171 albertel 482: &Apache::lonxml::info("<b>".&mt("Saving Modifications to").
483: " $file</b>");
1.145 albertel 484: } else {
1.171 albertel 485: &Apache::lonxml::info("<font color=\"red\" size=\"+1\"><b>".
486: &mt("Unable to write to")." $file</b></font>");
1.145 albertel 487: $error|=4;
488: }
1.52 albertel 489: }
1.145 albertel 490: return $error;
1.64 albertel 491: }
492:
1.101 albertel 493: sub analyze_header {
494: my ($request) = @_;
1.183 albertel 495: my $bodytag='<body bgcolor="#ffffff">';
496: if ($ENV{'environment.remote'} eq 'off') {
497: $bodytag=&Apache::loncommon::bodytag();
498: }
1.109 albertel 499: my $result.='<html>
1.146 albertel 500: <head><title>'.&mt("Analyzing a problem").'</title></head>
1.183 albertel 501: '.$bodytag.&Apache::lonxml::message_location().'
1.101 albertel 502: <form name="lonhomework" method="POST" action="'.
1.179 albertel 503: &HTML::Entities::encode($ENV{'request.uri'},'<>&"').'">'.
504: &Apache::structuretags::remember_problem_state().'
1.146 albertel 505: <input type="submit" name="problemmode" value="'.&mt("EditXML").'" />
506: <input type="submit" name="problemmode" value="'.&mt('Edit').'" />
1.101 albertel 507: <hr />
1.146 albertel 508: <input type="submit" name="submit" value="'.&mt("View").'" />
1.101 albertel 509: <hr />
510: </form>';
1.171 albertel 511: &Apache::lonxml::add_messages(\$result);
1.101 albertel 512: $request->print($result);
513: $request->rflush();
514: }
515:
1.109 albertel 516: sub analyze_footer {
517: my ($request) = @_;
518: my $result='</body></html>';
519: $request->print($result);
520: $request->rflush();
521: }
522:
1.74 albertel 523: sub analyze {
1.101 albertel 524: my ($request,$file) = @_;
525: &Apache::lonxml::debug("Analyze");
526: my $result;
527: my %overall;
528: my %allparts;
529: my $rndseed=$ENV{'form.rndseed'};
530: &analyze_header($request);
1.114 albertel 531: my %prog_state=
1.146 albertel 532: &Apache::lonhtmlcommon::Create_PrgWin($request,&mt('Analyze Progress'),
533: &mt('Getting Problem Variants'),
1.175 albertel 534: $ENV{'form.numtoanalyze'},
535: 'inline',undef);
1.102 albertel 536: for(my $i=1;$i<$ENV{'form.numtoanalyze'}+1;$i++) {
1.114 albertel 537: &Apache::lonhtmlcommon::Increment_PrgWin($request,\%prog_state,
1.146 albertel 538: &mt('last problem'));
1.182 albertel 539: if (&Apache::loncommon::connection_aborted($request)) { return; }
1.101 albertel 540: my $subresult=&Apache::lonnet::ssi($request->uri,
541: ('grade_target' => 'analyze'),
1.130 albertel 542: ('rndseed' => $i+$rndseed));
1.101 albertel 543: (my $garbage,$subresult)=split(/_HASH_REF__/,$subresult,2);
544: my %analyze=&Apache::lonnet::str2hash($subresult);
1.114 albertel 545: my @parts;
546: if (defined(@{ $analyze{'parts'} })) {
547: @parts=@{ $analyze{'parts'} };
548: }
1.101 albertel 549: foreach my $part (@parts) {
550: if (!exists($allparts{$part})) {$allparts{$part}=1;};
1.109 albertel 551: if ($analyze{$part.'.type'} eq 'numericalresponse' ||
552: $analyze{$part.'.type'} eq 'stringresponse' ||
553: $analyze{$part.'.type'} eq 'formularesponse' ) {
1.101 albertel 554: push( @{ $overall{$part.'.answer'} },
555: [@{ $analyze{$part.'.answer'} }]);
556: }
557: }
558: }
1.114 albertel 559: &Apache::lonhtmlcommon::Update_PrgWin($request,\%prog_state,
1.146 albertel 560: &mt('Analyzing Results'));
1.175 albertel 561: $request->print('<hr />'.&mt('List of possible answers').': ');
1.134 albertel 562: foreach my $part (sort(keys(%allparts))) {
1.109 albertel 563: if (defined(@{ $overall{$part.'.answer'} })) {
1.132 albertel 564: my $num_cols=scalar(@{ $overall{$part.'.answer'}->[0] });
1.184 albertel 565: $request->print('<table><tr><th colspan="'.($num_cols+1).'">'.&mt('Part').' '.$part.'</th></tr>');
1.130 albertel 566: my %frequency;
1.109 albertel 567: foreach my $answer (sort {$a->[0] <=> $b->[0]} (@{ $overall{$part.'.answer'} })) {
1.132 albertel 568: $frequency{join("\0",@{ $answer })}++;
1.130 albertel 569: }
1.184 albertel 570: $request->print('<tr><th colspan="'.($num_cols).'">'.&mt('Answer').'</th><th>'.&mt('Frequency').'</th></tr>');
1.132 albertel 571: foreach my $answer (sort {(split("\0",$a))[0] <=> (split("\0",$b))[0]} (keys(%frequency))) {
572: $request->print('<tr><td align="right">'.
573: join('</td><td align="right">',split("\0",$answer)).
1.130 albertel 574: '</td><td>('.$frequency{$answer}.
575: ')</td></tr>');
1.109 albertel 576: }
577: $request->print('</table>');
578: } else {
1.162 albertel 579: $request->print('<p>'.&mt('Response').' '.$part.' '.
1.146 albertel 580: &mt('is not analyzable at this time').'</p>');
1.101 albertel 581: }
582: }
1.130 albertel 583: if (scalar(keys(%allparts)) == 0 ) {
1.162 albertel 584: $request->print('<p>'.&mt('Found no analyzable respones in this problem, currently only Numerical, Formula and String response styles are supported.').'</p>');
1.130 albertel 585: }
1.114 albertel 586: &Apache::lonhtmlcommon::Close_PrgWin($request,\%prog_state);
1.109 albertel 587: &analyze_footer($request);
1.101 albertel 588: &Apache::lonhomework::showhash(%overall);
589: return $result;
1.74 albertel 590: }
591:
1.64 albertel 592: sub editxmlmode {
1.145 albertel 593: my ($request,$file) = @_;
594: my $result;
595: my $problem=&Apache::lonnet::getfile($file);
596: if ($problem eq -1) {
1.146 albertel 597: &Apache::lonxml::error("<b> ".&mt('Unable to find').
598: " <i>$file</i></b>");
1.145 albertel 599: $problem='';
600: }
601: if (defined($ENV{'form.editxmltext'}) || defined($ENV{'form.Undo'})) {
602: my $error=&handle_save_or_undo($request,\$problem,
603: \$ENV{'form.editxmltext'});
604: if (!$error) { $problem=&Apache::lonnet::getfile($file); }
605: }
1.80 albertel 606: &Apache::lonhomework::showhashsubset(\%ENV,'^form');
1.150 albertel 607: if ( $ENV{'form.submit'} eq &mt('Submit Changes and View') ) {
1.145 albertel 608: &Apache::lonhomework::showhashsubset(\%ENV,'^form');
609: $ENV{'form.problemmode'}='View';
610: &renderpage($request,$file);
611: } else {
612: my ($rows,$cols) = &Apache::edit::textarea_sizes(\$problem);
1.160 www 613: my $xml_help = '<table><tr><td>'.
614: &Apache::loncommon::helpLatexCheatsheet("Problem_Editor_XML_Index",
615: "Problem Editing Help").
616: '</td><td>'.
1.178 albertel 617: &Apache::loncommon::help_open_menu('',undef,undef,undef,5,'Authoring').
618: '</td></tr></table>';
1.145 albertel 619: if ($cols > 80) { $cols = 80; }
620: if ($cols < 70) { $cols = 70; }
621: if ($rows < 20) { $rows = 20; }
1.183 albertel 622: my $bodytag='<body bgcolor="#ffffff">';
623: if ($ENV{'environment.remote'} eq 'off') {
624: $bodytag=&Apache::loncommon::bodytag();
625: }
626: $result.='<html>'.$bodytag.&Apache::lonxml::message_location().'
1.64 albertel 627: <form name="lonhomework" method="POST" action="'.
1.179 albertel 628: &HTML::Entities::encode($ENV{'request.uri'},'<>&"').'">'.
629: &Apache::structuretags::remember_problem_state().'
1.146 albertel 630: <input type="hidden" name="problemmode" value="'.&mt('EditXML').'" />
1.170 matthew 631: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
632: <input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />
1.64 albertel 633: <hr />
1.170 matthew 634: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes').'" />
635: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" />
636: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.64 albertel 637: <hr />
1.110 albertel 638: ' . $xml_help . '
1.64 albertel 639: <textarea rows="'.$rows.'" cols="'.$cols.'" name="editxmltext">'.
1.172 albertel 640: &HTML::Entities::encode($problem,'<>&"').'</textarea>
1.64 albertel 641: </form></body></html>';
1.171 albertel 642: &Apache::lonxml::add_messages(\$result);
1.145 albertel 643: $request->print($result);
644: }
645: return '';
1.47 albertel 646: }
1.189 albertel 647:
1.188 foxr 648: #
649: # Render the page in whatever target desired.
650: #
1.41 albertel 651: sub renderpage {
1.145 albertel 652: my ($request,$file) = @_;
1.52 albertel 653:
1.145 albertel 654: my (@targets) = &get_target();
1.161 albertel 655: &Apache::lonhomework::showhashsubset(\%ENV,'form.');
1.145 albertel 656: &Apache::lonxml::debug("Running targets ".join(':',@targets));
1.171 albertel 657: my $overall_result;
1.145 albertel 658: foreach my $target (@targets) {
1.183 albertel 659: # FIXME need to do something intelligent when a problem goes
660: # from viewable to not viewable due to map conditions
661: #&setuppermissions();
662: #if ( $Apache::lonhomework::browse ne '2'
663: # && $Apache::lonhomework::browse ne 'F' ) {
664: # $request->print(" You most likely shouldn't see me.");
665: #}
1.145 albertel 666: #my $t0 = [&gettimeofday()];
667: my $problem=&Apache::lonnet::getfile($file);
668: if ($problem eq -1) {
1.146 albertel 669: &Apache::lonxml::error("<b> ".&mt('Unable to find')." <i>$file</i></b>");
1.145 albertel 670: $problem='';
671: }
1.52 albertel 672:
1.145 albertel 673: my %mystyle;
674: my $result = '';
675: if ($target eq 'analyze') { %Apache::lonhomework::analyze=(); }
676: if ($target eq 'answer') { &showhash(%Apache::lonhomework::history); }
677: if ($target eq 'web') {&Apache::lonhomework::showhashsubset(\%ENV,'^form');}
678:
679: &Apache::lonxml::debug("Should be parsing now");
680: $result = &Apache::lonxml::xmlparse($request, $target, $problem,
681: &setup_vars($target),%mystyle);
682: undef($Apache::lonhomework::parsing_a_problem);
683: #$request->print("Result follows:");
684: if ($target eq 'modified') {
685: &handle_save_or_undo($request,\$problem,\$result);
686: } else {
687: if ($target eq 'analyze') {
688: $result=&Apache::lonnet::hashref2str(\%Apache::lonhomework::analyze);
689: undef(%Apache::lonhomework::analyze);
690: }
691: #my $td=&tv_interval($t0);
692: #if ( $Apache::lonxml::debug) {
693: #$result =~ s:</body>::;
694: #$result.="<br />Spent $td seconds processing target $target\n</body>";
695: #}
1.171 albertel 696: # $request->print($result);
697: $overall_result.=$result;
698: # $request->rflush();
1.145 albertel 699: }
700: #$request->print(":Result ends");
701: #my $td=&tv_interval($t0);
1.52 albertel 702: }
1.171 albertel 703: &Apache::lonxml::add_messages(\$overall_result);
704: $request->print($overall_result);
705: $request->rflush();
1.41 albertel 706: }
707:
1.42 albertel 708: # with no arg it returns a HTML <option> list of the template titles
709: # with one arg it returns the filename associated with the arg passed
710: sub get_template_list {
1.145 albertel 711: my ($namewanted,$extension) = @_;
712: my $result;
713: my @allnames;
714: &Apache::lonxml::debug("Looking for :$extension:");
715: foreach my $file (</home/httpd/html/res/adm/includes/templates/*.$extension>) {
716: my $name=&Apache::lonnet::metadata($file,'title');
717: if ($namewanted && ($name eq $namewanted)) {
718: $result=$file;
719: last;
720: } else {
721: if ($name) { push (@allnames, $name); }
722: }
723: }
724: if (@allnames && !$result) {
1.146 albertel 725: $result="<option>".&mt("Select a")." $extension ".&mt('template')."</option>\n<option>".
1.145 albertel 726: join('</option><option>',sort(@allnames)).'</option>';
1.42 albertel 727: }
1.145 albertel 728: return $result;
1.42 albertel 729: }
730:
731: sub newproblem {
1.65 matthew 732: my ($request) = @_;
733: my $extension=$request->uri;
734: $extension=~s:^.*\.([\w]+)$:$1:;
735: &Apache::lonxml::debug("Looking for :$extension:");
1.131 albertel 736: my $templatelist=&get_template_list('',$extension);
1.85 albertel 737: if ($ENV{'form.template'} &&
1.128 albertel 738: $ENV{'form.template'} ne "Select a $extension template") {
1.65 matthew 739: use File::Copy;
740: my $file = &get_template_list($ENV{'form.template'},$extension);
741: my $dest = &Apache::lonnet::filelocation("",$request->uri);
742: copy($file,$dest);
743: &renderpage($request,$dest);
1.131 albertel 744: } elsif($ENV{'form.newfile'} && !$templatelist) {
745: # I don't like hard-coded filenames but for now, this will work.
746: use File::Copy;
747: my $templatefilename =
748: $request->dir_config('lonIncludes').'/templates/blank.problem';
749: &Apache::lonxml::debug("$templatefilename");
750: my $dest = &Apache::lonnet::filelocation("",$request->uri);
751: copy($templatefilename,$dest);
752: &renderpage($request,$dest);
1.85 albertel 753: } else {
1.176 albertel 754: my $url=&HTML::Entities::encode($request->uri,'<>&"');
755: my $shownurl=$url;
1.157 albertel 756: $shownurl=~s-^/~-/priv/-;
1.65 matthew 757: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1.128 albertel 758: my $errormsg;
759: if ($ENV{'form.newfile'}) {
1.146 albertel 760: $errormsg='<p><font color="red">'.&mt('You did not select a template.').'</font></p>'."\n";
1.128 albertel 761: }
1.85 albertel 762: my $instructions;
1.186 albertel 763: my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,
764: ($ENV{'environment.remote'} ne 'off'));
1.146 albertel 765: if ($templatelist) { $instructions=&mt(", select a template from the pull-down menu below.").'<br />'.&mt("Then");}
1.147 albertel 766: my %lt=&Apache::lonlocal::texthash( 'create' => 'Creating a new',
1.146 albertel 767: 'resource' => 'resource',
768: 'requested' => 'The requested file',
769: 'not exist' => 'currently does not exist',
770: 'createnew' => 'To create a new',
771: 'click' => 'click on the',
772: 'Create' => 'Create',
773: 'button' => 'button');
1.65 matthew 774: $request->print(<<ENDNEWPROBLEM);
1.159 www 775: $bodytag
1.148 albertel 776: <h1>$lt{'create'} $extension $lt{'resource'}</h1>
1.128 albertel 777: $errormsg
1.157 albertel 778: $lt{'requested'} <tt>$shownurl</tt> $lt{'not exist'}.
1.105 www 779: <p>
1.146 albertel 780: <b>$lt{'createnew'} $extension$instructions $lt{'click'} "$lt{'Create'} $extension" $lt{'button'}.</b>
1.105 www 781: </p>
782: <p><form action="$url" method="POST">
1.42 albertel 783: ENDNEWPROBLEM
1.85 albertel 784: if (defined($templatelist)) {
785: $request->print("<select name=\"template\">$templatelist</select>");
786: }
1.146 albertel 787: $request->print("<br /><input type=\"submit\" name=\"newfile\" value=\"".&mt('Create')." $extension\" />");
1.105 www 788: $request->print("</form></p></body>");
1.65 matthew 789: }
790: return '';
1.42 albertel 791: }
792:
793: sub view_or_edit_menu {
1.145 albertel 794: my ($request) = @_;
1.176 albertel 795: my $url=&HTML::Entities::encode($request->uri,'<>&"');
1.147 albertel 796: my %lt=&Apache::lonlocal::texthash( 'would' => 'Would you like to',
1.146 albertel 797: 'view' => 'View',
798: 'Edit' => 'edit',
799: 'or' => 'or',
800: 'the problem' => 'the problem');
1.145 albertel 801: $request->print(<<EDITMENU);
1.42 albertel 802: <body bgcolor="#FFFFFF">
803: <form action="$url" method="POST">
1.170 matthew 804: $lt{'would'} <input type="submit" name="problemmode" accesskey="v" value="<{'view'}">
805: <{'or'} <input type="submit" name="problemmode" accesskey="e" value="<{'Edit'}">
1.146 albertel 806: <{'the problem'}.
1.42 albertel 807: </form>
808: </body>
809: EDITMENU
810: }
811:
1.41 albertel 812: sub handler {
1.145 albertel 813: #my $t0 = [&gettimeofday()];
814: my $request=$_[0];
815:
816: $Apache::lonxml::debug=$ENV{'user.debug'};
817: $ENV{'request.uri'}=$request->uri;
1.180 albertel 818: &setuppermissions();
1.145 albertel 819: # some times multiple problemmodes are submitted, need to select
820: # the last one
1.193 albertel 821: if ( defined($ENV{'form.problemmode'}) && ref($ENV{'form.problemmode'}) ) {
1.145 albertel 822: my $mode=$ENV{'form.problemmode'}->[-1];
823: undef $ENV{'form.problemmode'};
824: $ENV{'form.problemmode'}=$mode;
825: }
1.193 albertel 826:
1.145 albertel 827: my $file=&Apache::lonnet::filelocation("",$request->uri);
828:
829: #check if we know where we are
830: if ($ENV{'request.course.fn'} && !&Apache::lonnet::symbread()) {
831: # if we are browsing we might not be able to know where we are
1.173 albertel 832: if ($Apache::lonhomework::browse ne 'F' &&
833: $ENV{'request.state'} ne "construct") {
1.145 albertel 834: #should know where we are, so ask
835: if ( &Apache::lonnet::mod_perl_version() == 2 ) {
836: &Apache::lonnet::cleanenv();
837: }
1.190 albertel 838: &Apache::lonnet::logthis(&Apache::lonnet::mod_perl_version());
839: $request->internal_redirect('/adm/ambiguous'); return OK;
1.145 albertel 840: }
841: }
1.187 albertel 842: if (&setupheader($request)) { return OK; }
1.193 albertel 843: &Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:");
844: &Apache::lonxml::debug("Problem Mode ".$ENV{'form.problemmode'});
1.145 albertel 845: my ($symb) = &Apache::lonxml::whichuser();
846: &Apache::lonxml::debug('symb is '.$symb);
847: if ($ENV{'request.state'} eq "construct" || $symb eq '') {
1.150 albertel 848: if ($ENV{'form.resetdata'} eq &mt('Reset Submissions') ||
849: $ENV{'form.resetdata'} eq &mt('New Problem Variation') ||
850: $ENV{'form.newrandomization'} eq &mt('New Randomization')) {
1.145 albertel 851: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
852: &Apache::lonnet::tmpreset($symb,'',$domain,$name);
853: &Apache::lonxml::debug("Attempt reset");
854: }
855: }
856: if ($ENV{'request.state'} eq "construct") {
857: if ( -e $file ) {
858: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
859: ['problemmode']);
860: if (!(defined $ENV{'form.problemmode'})) {
861: #first visit to problem in construction space
862: #&view_or_edit_menu($request);
863: $ENV{'form.problemmode'}='View';
864: &renderpage($request,$file);
1.190 albertel 865: } elsif ($ENV{'form.problemmode'} eq &mt('EditXML') ||
1.191 albertel 866: $ENV{'form.problemmode'} eq 'EditXML') {
1.145 albertel 867: &editxmlmode($request,$file);
1.150 albertel 868: } elsif ($ENV{'form.problemmode'} eq &mt('Calculate answers')) {
1.145 albertel 869: &analyze($request,$file);
870: } else {
871: &renderpage($request,$file);
872: }
873: } else {
874: # requested file doesn't exist in contruction space
875: &newproblem($request);
876: }
877: } else {
878: # just render the page normally outside of construction space
879: &Apache::lonxml::debug("not construct");
1.52 albertel 880: &renderpage($request,$file);
1.41 albertel 881: }
1.145 albertel 882: #my $td=&tv_interval($t0);
883: #&Apache::lonxml::debug("Spent $td seconds processing");
884: # &Apache::lonhomework::send_footer($request);
885: # always turn off debug messages
886: $Apache::lonxml::debug=0;
887: return OK;
1.52 albertel 888:
1.1 albertel 889: }
890:
891: 1;
892: __END__
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