1: # The LearningOnline Network with CAPA
2: # The LON-CAPA Grading handler
3: #
4: # $Id: grades.pm,v 1.25 2002/05/16 00:01:09 albertel Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: # 2/9,2/13 Guy Albertelli
29: # 6/8 Gerd Kortemeyer
30: # 7/26 H.K. Ng
31: # 8/20 Gerd Kortemeyer
32:
33: package Apache::grades;
34: use strict;
35: use Apache::style;
36: use Apache::lonxml;
37: use Apache::lonnet;
38: use Apache::loncommon;
39: use Apache::lonhomework;
40: use Apache::Constants qw(:common);
41:
42: sub moreinfo {
43: my ($request,$reason) = @_;
44: $request->print("Unable to process request: $reason");
45: if ( $Apache::grades::viewgrades eq 'F' ) {
46: $request->print('<form action="/adm/grades" method="post">'."\n");
47: if ($ENV{'form.url'}) {
48: $request->print('<input type="hidden" name="url" value="'.$ENV{'form.url'}.'" />'."\n");
49: }
50: if ($ENV{'form.symb'}) {
51: $request->print('<input type="hidden" name="symb" value="'.$ENV{'form.symb'}.'" />'."\n");
52: }
53: $request->print('<input type="hidden" name="command" value="'.$ENV{'form.command'}.'" />'."\n");
54: $request->print("Student:".'<input type="text" name="student" value="'.$ENV{'form.student'}.'" />'."<br />\n");
55: $request->print("Domain:".'<input type="text" name="domain" value="'.$ENV{'user.domain'}.'" />'."<br />\n");
56: $request->print('<input type="submit" name="submit" value="ReSubmit" />'."<br />\n");
57: $request->print('</form>');
58: }
59: return '';
60: }
61:
62: sub verifyreceipt {
63: my $request=shift;
64: my $courseid=$ENV{'request.course.id'};
65: my $cdom=$ENV{"course.$courseid.domain"};
66: my $cnum=$ENV{"course.$courseid.num"};
67: my $receipt=unpack("%32C*",$Apache::lonnet::perlvar{'lonHostID'}).'-'.
68: $ENV{'form.receipt'};
69: $receipt=~s/[^\-\d]//g;
70: my $symb=$ENV{'form.symb'};
71: unless ($symb) {
72: $symb=&Apache::lonnet::symbread($ENV{'form.url'});
73: }
74: if ((&Apache::lonnet::allowed('mgr',$courseid)) && ($symb)) {
75: $request->print('<h1>Verifying Submission Receipt '.$receipt.'</h1>');
76: my $matches=0;
77: my (%classlist) = &getclasslist($cdom,$cnum,'0');
78: foreach my $student ( sort(@{ $classlist{'allids'} }) ) {
79: my ($uname,$udom)=split(/\:/,$student);
80: if ($receipt eq
81: &Apache::lonnet::ireceipt($uname,$udom,$courseid,$symb)) {
82: $request->print('Matching '.$student.'<br>');
83: $matches++;
84: }
85: }
86: $request->print('<p>'.$matches.' match(es)</p>');
87: }
88: return '';
89: }
90:
91: sub listStudents {
92: my ($request) = shift;
93: my $cdom=$ENV{"course.$ENV{'request.course.id'}.domain"};
94: my $cnum=$ENV{"course.$ENV{'request.course.id'}.num"};
95: my $hostver=unpack("%32C*",$Apache::lonnet::perlvar{'lonHostID'});
96: $request->print(<<ENDHEADER);
97: <h1>Verify a Submission Receipt Issued by this Server</h1>
98: <form action="/adm/grades" method="post">
99: <tt>$hostver-<input type="text" name="receipt" size="4"></tt>
100: <input type="submit" name="submit" value="Verify">
101: <input type="hidden" name="command" value="verify">
102: ENDHEADER
103: if ($ENV{'form.url'}) {
104: $request->print(
105: '<input type="hidden" name="url" value="'.$ENV{'form.url'}.'" />');
106: }
107: if ($ENV{'form.symb'}) {
108: $request->print(
109: '<input type="hidden" name="symb" value="'.$ENV{'form.symb'}.'" />');
110: }
111: $request->print(<<ENDTABLEST);
112: </form>
113: <h1>Show Student Submissions on Assessment</h1>
114: <table border="1">
115: <tr><th>Username</th><th>Domain</th><th>Name</th><th> </th></tr>
116: ENDTABLEST
117: my (%classlist) = &getclasslist($cdom,$cnum,'0');
118: foreach my $student ( sort(@{ $classlist{'allids'} }) ) {
119: my ($sname,$sdom) = split(/:/,$student);
120:
121: my %name=&Apache::lonnet::get('environment', ['lastname','generation',
122: 'firstname','middlename'],
123: $sdom,$sname);
124: my $fullname;
125: my ($tmp) = keys(%name);
126: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
127: $fullname=$name{'lastname'}.$name{'generation'};
128: if ($fullname =~ /[^\s]+/) { $fullname.=','; }
129: $fullname.=$name{'firstname'}.' '.$name{'middlename'};
130: }
131: if ( $Apache::grades::viewgrades eq 'F' ) {
132: $request->print("\n".'<tr>'."<td>$sname</td><td>$sdom</td><td>$fullname</td><td>".
133: '<form action="/adm/grades" method="post">');
134: if ($ENV{'form.url'}) {
135: $request->print(
136: '<input type="hidden" name="url" value="'.$ENV{'form.url'}.'" />');
137: }
138: if ($ENV{'form.symb'}) {
139: $request->print(
140: '<input type="hidden" name="symb" value="'.$ENV{'form.symb'}.'" />');
141: }
142: $request->print(
143: '<input type="hidden" name="command" value="'.$ENV{'form.command'}.'" />');
144: $request->print(
145: '<input type="hidden" name="student" value="'.$sname.'" />');
146: $request->print(
147: '<input type="hidden" name="domain" value="'.$sdom.'" />');
148: $request->print(
149: '<input type="submit" name="submit" value="View" />');
150: $request->print('</form></td></tr>');
151: }
152: }
153: $request->print('</table>');
154: }
155:
156:
157: #FIXME - needs to handle multiple matches
158: sub finduser {
159: my ($name) = @_;
160: my $domain = '';
161:
162: if ( $Apache::grades::viewgrades eq 'F' ) {
163: #get classlist
164: my ($cdom,$cnum) = split(/_/,$ENV{'request.course.id'});
165: #print "Found $cdom:$cnum<br />";
166: my (%classlist) = &getclasslist($cdom,$cnum,'0');
167: foreach my $student ( sort(@{ $classlist{'allids'} }) ) {
168: my ($posname,$posdomain) = split(/:/,$student);
169: if ($posname =~ $name) { $name=$posname; $domain=$posdomain; last; }
170: }
171: return ($name,$domain);
172: } else {
173: return ($ENV{'user.name'},$ENV{'user.domain'});
174: }
175: }
176:
177: sub getclasslist {
178: my ($coursedomain,$coursenum,$hideexpired) = @_;
179: my %classlist=&Apache::lonnet::dump('classlist',$coursedomain,$coursenum);
180: my $now = time;
181: foreach my $student (keys(%classlist)) {
182: my ($end,$start)=split(/:/,$classlist{$student});
183: # still a student?
184: if (($hideexpired) && ($end) && ($end < $now)) {
185: #print "Skipping:$name:$end:$now<br />\n";
186: next;
187: }
188: #print "record=$record<br>";
189: push( @{ $classlist{'allids'} }, $student);
190: }
191: return (%classlist);
192: }
193:
194: sub getpartlist {
195: my ($url) = @_;
196: my @parts =();
197: my (@metakeys) = split(/,/,&Apache::lonnet::metadata($url,'keys'));
198: foreach my $key (@metakeys) {
199: if ( $key =~ m/stores_([0-9]+)_.*/ ) {
200: push(@parts,$key);
201: }
202: }
203: return @parts;
204: }
205:
206: sub viewstudentgrade {
207: my ($url,$symb,$courseid,$student,@parts) = @_;
208: my $result ='';
209: my $cellclr = '"#ffffdd"';
210: my ($stuname,$domain) = split(/:/,$student);
211:
212: my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$stuname);
213:
214: $result.="<tr><td bgcolor=$cellclr>$stuname</td><td bgcolor=$cellclr align=\"middle\">$domain</td>\n";
215: foreach my $part (@parts) {
216: my ($temp,$part,$type)=split(/_/,$part);
217: #print "resource.$part.$type = ".$record{"resource.$part.$type"}." <br />\n";
218: if ($type eq 'awarded') {
219: my $score=$record{"resource.$part.$type"};
220: $result.="<td bgcolor=$cellclr align=\"middle\"><input type=\"text\" name=\"GRADE.$student.$part.$type\" value=\"$score\" size=\"4\" /></td>\n";
221: } elsif ($type eq 'tries') {
222: my $score=$record{"resource.$part.$type"};
223: $result.="<td bgcolor=$cellclr align=\"middle\"><input type=\"text\" name=\"GRADE.$student.$part.$type\" value=\"$score\" size=\"4\" /></td>\n"
224: } elsif ($type eq 'solved') {
225: my $score=$record{"resource.$part.$type"};
226: $result.="<td bgcolor=$cellclr align=\"middle\"><select name=\"GRADE.$student.$part.$type\">\n";
227: if ($score =~ /^correct/) {
228: $result.="<option selected=\"on\">correct</option>\n<option>incorrect</option>\n<option>excused</option>\n<option>ungraded</option>\n<option>nothing</option>\n";
229: } elsif ($score =~ /^incorrect/) {
230: $result.="<option>correct</option>\n<option selected=\"on\">incorrect</option>\n<option>excused</option>\n<option>ungraded</option>\n<option>nothing</option>\n";
231: } elsif ($score eq '') {
232: $result.="<option>correct</option>\n<option>incorrect</option>\n<option>excused</option>\n<option>ungraded</option>\n<option selected=\"on\">nothing</option>\n";
233: } elsif ($score =~ /^excused/) {
234: $result.="<option>correct</option>\n<option>incorrect</option>\n<option selected=\"on\">excused</option>\n<option>ungraded</option>\n<option>nothing</option>\n";
235: } elsif ($score =~ /^ungraded/) {
236: $result.="<option>correct</option>\n<option>incorrect</option>\n<option>excused</option>\n<option selected=\"on\">ungraded</option>\n<option>nothing</option>\n";
237: }
238: $result.="</select></td>\n";
239: }
240: }
241: $result.='</tr>';
242: return $result;
243: }
244: #FIXME need to look at the meatdata <stores> spec on what type of data to accept and provide an
245: #interface based on that, also do that to above function.
246: sub setstudentgrade {
247: my ($url,$symb,$courseid,$student,@parts) = @_;
248:
249: my $result ='';
250:
251: my ($stuname,$domain) = split(/:/,$student);
252:
253: my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$stuname);
254:
255: my %newrecord;
256:
257: foreach my $part (@parts) {
258: my ($temp,$part,$type)=split(/_/,$part);
259: my $oldscore=$record{"resource.$part.$type"};
260: my $newscore=$ENV{"form.GRADE.$student.$part.$type"};
261: if ($type eq 'solved') {
262: my $update=0;
263: if ($newscore eq 'nothing' ) {
264: if ($oldscore ne '') {
265: $update=1;
266: $newscore = '';
267: }
268: } elsif ($oldscore !~ m/^$newscore/) {
269: $update=1;
270: $result.="Updating $stuname to $newscore<br />\n";
271: if ($newscore eq 'correct') { $newscore = 'correct_by_override'; }
272: if ($newscore eq 'incorrect') { $newscore = 'incorrect_by_override'; }
273: if ($newscore eq 'excused') { $newscore = 'excused'; }
274: if ($newscore eq 'ungraded') { $newscore = 'ungraded_attempted'; }
275: } else {
276: #$result.="$stuname:$part:$type:unchanged $oldscore to $newscore:<br />\n";
277: }
278: if ($update) { $newrecord{"resource.$part.$type"}=$newscore; }
279: } else {
280: if ($oldscore ne $newscore) {
281: $newrecord{"resource.$part.$type"}=$newscore;
282: $result.="Updating $student"."'s status for $part.$type to $newscore<br />\n";
283: } else {
284: #$result.="$stuname:$part:$type:unchanged $oldscore to $newscore:<br />\n";
285: }
286: }
287: }
288: if ( scalar(keys(%newrecord)) > 0 ) {
289: $newrecord{"resource.regrader"}="$ENV{'user.name'}:$ENV{'user.domain'}";
290: &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$stuname);
291:
292: $result.="Stored away ".scalar(keys(%newrecord))." elements.<br />\n";
293: }
294: return $result;
295: }
296:
297: sub submission {
298: my ($request) = @_;
299: my $url=$ENV{'form.url'};
300: $url=~s-^http://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;
301: if ($ENV{'form.student'} eq '') { &moreinfo($request,"Need student login id"); return ''; }
302: # if ($ENV{'form.student'} eq '') { &listStudents($request); return ''; }
303: my ($uname,$udom) = &finduser($ENV{'form.student'});
304: if ($uname eq '') { &moreinfo($request,"Unable to find student"); return ''; }
305: my $symb;
306: if ($ENV{'form.symb'}) {
307: $symb=$ENV{'form.symb'};
308: } else {
309: $symb=&Apache::lonnet::symbread($url);
310: }
311: if ($symb eq '') { $request->print("Unable to handle ambiguous references:$url:."); return ''; }
312: my $answer=&Apache::loncommon::get_previous_attempt($symb,$uname,$udom,
313: $ENV{'request.course.id'});
314: my $result="<h2> Submission Record </h2> $uname:$udom for $url <br />".$answer;
315: my $rendered=&Apache::loncommon::get_student_view($symb,$uname,$udom,
316: $ENV{'request.course.id'});
317: $result.="Student's view of the problem:<br /> $rendered <br /> Correct answer:<br />";
318:
319: $answer=&Apache::loncommon::get_student_answers($symb,$uname,$udom,
320: $ENV{'request.course.id'});
321: $result.=$answer;
322: return $result;
323: }
324:
325: sub viewgrades {
326: my ($request) = @_;
327: my $result='';
328:
329: #get resource reference
330: my $url=$ENV{'form.url'};
331: $url=~s-^http://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;
332: my $symb=$ENV{'form.symb'};
333: if (!$symb) { $symb=&Apache::lonnet::symbread($url); }
334: if ($symb eq '') { $request->print("Unable to handle ambiguous references:$url:."); return ''; }
335:
336: #get classlist
337: my ($cdom,$cnum) = split(/_/,$ENV{'request.course.id'});
338: #print "Found $cdom:$cnum<br />";
339: my (%classlist) = &getclasslist($cdom,$cnum,'0');
340: my $headerclr = '"#ccffff"';
341: my $cellclr = '"#ffffcc"';
342:
343: #get list of parts for this problem
344: my (@parts) = &getpartlist($url);
345:
346: $request->print ("<h2><font color=\"#339966\">Manual Grading</font></h2>");
347:
348: #start the form
349: $result = '<form action="/adm/grades" method="post">'."\n".
350: '<input type="hidden" name="symb" value="'.$symb.'" />'."\n".
351: '<input type="hidden" name="url" value="'.$url.'" />'."\n".
352: '<input type="hidden" name="command" value="editgrades" />'."\n".
353: '<input type="submit" name="submit" value="Submit Changes" />'."\n".
354: '<table border=0><tr><td bgcolor="#999999">'."\n".
355: '<table border=0>'."\n".
356: '<tr><td bgcolor='.$headerclr.'>UserId</td><td bgcolor='.$headerclr.'>Domain</td>'."\n";
357: foreach my $part (@parts) {
358: my $display=&Apache::lonnet::metadata($url,$part.'.display');
359: if (!$display) { $display = &Apache::lonnet::metadata($url,$part.'.name'); }
360: $result.='<td bgcolor='.$headerclr.'>'.$display.'</td>'."\n";
361: }
362: $result.="</tr>";
363: #get info for each student
364: foreach my $student ( sort(@{ $classlist{'allids'} }) ) {
365: $result.=&viewstudentgrade($url,$symb,$ENV{'request.course.id'},$student,@parts);
366: }
367: $result.='</table></td></tr></table><input type="submit" name="submit" value="Submit Changes" /></form>';
368:
369: return $result;
370: }
371:
372: sub editgrades {
373: my ($request) = @_;
374: my $result='';
375:
376: my $symb=$ENV{'form.symb'};
377: if ($symb eq '') { $request->print("Unable to handle ambiguous references:$symb:$ENV{'form.url'}"); return ''; }
378: my $url=$ENV{'form.url'};
379: #get classlist
380: my ($cdom,$cnum) = split(/_/,$ENV{'request.course.id'});
381: #print "Found $cdom:$cnum<br />";
382: my (%classlist) = &getclasslist($cdom,$cnum,'0');
383:
384: #get list of parts for this problem
385: my (@parts) = &getpartlist($url);
386:
387: $result.='<form action="/adm/grades" method="post">'."\n".
388: '<input type="hidden" name="symb" value="'.$symb.'" />'."\n".
389: '<input type="hidden" name="url" value="'.$url.'" />'."\n".
390: '<input type="hidden" name="command" value="viewgrades" />'."\n".
391: '<input type="submit" name="submit" value="See Grades" /> <br />'."\n";
392:
393: foreach my $student ( sort(@{ $classlist{'allids'} }) ) {
394: $result.=&setstudentgrade($url,$symb,$ENV{'request.course.id'},$student,@parts);
395: }
396:
397: $result.='<input type="submit" name="submit" value="See Grades" /></table></form>';
398: return $result;
399: }
400:
401: sub send_header {
402: my ($request)= @_;
403: $request->print(&Apache::lontexconvert::header());
404: # $request->print("
405: #<script>
406: #remotewindow=open('','homeworkremote');
407: #remotewindow.close();
408: #</script>");
409: $request->print('<body bgcolor="#FFFFFF">');
410: }
411:
412: sub send_footer {
413: my ($request)= @_;
414: $request->print('</body>');
415: $request->print(&Apache::lontexconvert::footer());
416: }
417:
418: sub handler {
419: my $request=$_[0];
420:
421: if ( $ENV{'user.name'} eq 'albertel' ) {$Apache::lonxml::debug=1;} else {$Apache::lonxml::debug=0;}
422:
423: if ($ENV{'browser.mathml'}) {
424: $request->content_type('text/xml');
425: } else {
426: $request->content_type('text/html');
427: }
428: $request->send_http_header;
429: return OK if $request->header_only;
430: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
431: my $url=$ENV{'form.url'};
432: my $symb=$ENV{'form.symb'};
433: my $command=$ENV{'form.command'};
434: if (!$url) {
435: my ($temp1,$temp2);
436: ($temp1,$temp2,$ENV{'form.url'})=split(/___/,$symb);
437: $url = $ENV{'form.url'};
438: }
439: &send_header($request);
440: if ($url eq '' && $symb eq '') {
441: if ($ENV{'user.adv'}) {
442: if (($ENV{'form.codeone'}) && ($ENV{'form.codetwo'}) &&
443: ($ENV{'form.codethree'})) {
444: my $token=$ENV{'form.codeone'}.'*'.$ENV{'form.codetwo'}.'*'.
445: $ENV{'form.codethree'};
446: my ($tsymb,$tuname,$tudom,$tcrsid)=
447: &Apache::lonnet::checkin($token);
448: if ($tsymb) {
449: my ($map,$id,$url)=split(/\_\_\_/,$tsymb);
450: if (&Apache::lonnet::allowed('mgr',$tcrsid)) {
451: $request->print(
452: &Apache::lonnet::ssi('/res/'.$url,
453: ('grade_username' => $tuname,
454: 'grade_domain' => $tudom,
455: 'grade_courseid' => $tcrsid,
456: 'grade_symb' => $tsymb)));
457: } else {
458: $request->print('<h1>Not authorized: '.$token.'</h1>');
459: }
460: } else {
461: $request->print('<h1>Not a valid DocID: '.$token.'</h1>');
462: }
463: } else {
464: $request->print(&Apache::lonxml::tokeninputfield());
465: }
466: }
467: } else {
468: $Apache::grades::viewgrades=&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'});
469: if ($command eq 'submission') {
470: &listStudents($request) if ($ENV{'form.student'} eq '');
471: $request->print(&submission($request)) if ($ENV{'form.student'} ne '');
472: } elsif ($command eq 'viewgrades') {
473: $request->print(&viewgrades($request));
474: } elsif ($command eq 'editgrades') {
475: $request->print(&editgrades($request));
476: } elsif ($command eq 'verify') {
477: $request->print(&verifyreceipt($request));
478: } else {
479: $request->print("Unknown action: $command:");
480: }
481: }
482: &send_footer($request);
483: return OK;
484: }
485:
486: 1;
487:
488: __END__;
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