1: #!/usr/bin/perl
2: # The LearningOnline Network
3: #
4: # $Id: refresh_courseids_db.pl,v 1.8 2010/08/22 21:14:54 raeburn Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: #################################################
29:
30: =pod
31:
32: =head1 NAME
33:
34: refresh_courseids_db.pl
35:
36: =head1 SYNOPSIS
37:
38: refresh_courseids_db.pl is run on a library server and gathers
39: course information for each course for which the current server is
40: the home server. Entries (excluding last access time) for each course
41: in nohist_courseids.db are updated.
42:
43: =head1 DESCRIPTION
44:
45: refresh_courseids_db.pl will update course information, apart
46: from last access time, in nohist_courseids.db, using course data
47: from each course's environment.db file.
48:
49: =cut
50:
51: #################################################
52:
53: use strict;
54: use lib '/home/httpd/lib/perl/';
55: use Apache::lonnet;
56: use Apache::loncommon;
57: use Apache::lonuserstate;
58: use Apache::loncoursedata;
59: use Apache::lonnavmaps;
60: use LONCAPA qw(:DEFAULT :match);
61:
62: exit if ($Apache::lonnet::perlvar{'lonRole'} ne 'library');
63:
64: use vars qw( %checkparms %checkresponsetypes %checkcrstypes %anonsurvey );
65:
66: # Make sure this process is running from user=www
67: my $wwwid=getpwnam('www');
68: if ($wwwid!=$<) {
69: my $emailto="$Apache::lonnet::perlvar{'lonAdmEMail'},$Apache::lonnet::perlvar{'lonSysEMail'}";
70: my $subj="LON: $Apache::lonnet::perlvar{'lonHostID'} User ID mismatch";
71: system("echo 'User ID mismatch. refresh_courseids_db.pl must be run as user www.' |\
72: mail -s '$subj' $emailto > /dev/null");
73: exit 1;
74: }
75: #
76: # Let people know we are running
77: open(my $fh,'>>'.$Apache::lonnet::perlvar{'lonDaemons'}.'/logs/refreshcourseids_db.log');
78: print $fh "==== refresh_courseids_db.pl Run ".localtime()."====\n";
79:
80: my @domains = sort(&Apache::lonnet::current_machine_domains());
81: my @ids=&Apache::lonnet::current_machine_ids();
82:
83: &build_release_hashes();
84: $env{'allowed.bre'} = 'F';
85:
86: foreach my $dom (@domains) {
87: my %courseshash;
88: my %currhash = &Apache::lonnet::courseiddump($dom,'.',1,'.','.','.',1,\@ids,'.');
89: my %lastaccess = &Apache::lonnet::courselastaccess($dom,undef,\@ids);
90: my $dir = $Apache::lonnet::perlvar{lonUsersDir}.'/'.$dom;
91: my %domdesign = &Apache::loncommon::get_domainconf($dom);
92: my $autoassign = $domdesign{$dom.'.autoassign.co-owners'};
93: &recurse_courses($dom,$dir,0,\%courseshash,\%currhash,\%lastaccess,$autoassign,$fh);
94: foreach my $lonhost (keys(%courseshash)) {
95: if (ref($courseshash{$lonhost}) eq 'HASH') {
96: if (&Apache::lonnet::courseidput($dom,$courseshash{$lonhost},$lonhost,'notime') eq 'ok') {
97: print $fh "nohist_courseids.db updated successfully for domain $dom on lonHostID $lonhost\n";
98: } else {
99: print $fh "Error occurred when updating nohist_courseids.db for domain $dom on lonHostID $lonhost\n";
100: }
101: }
102: }
103: }
104:
105: delete($env{'allowed.bre'});
106:
107: ## Finished!
108: print $fh "==== refresh_courseids.db completed ".localtime()." ====\n";
109: close($fh);
110:
111: sub recurse_courses {
112: my ($cdom,$dir,$depth,$courseshash,$currhash,$lastaccess,$autoassign,$fh) = @_;
113: next unless (ref($currhash) eq 'HASH');
114: if (-d $dir) {
115: opendir(DIR,$dir);
116: my @contents = grep(!/^\./,readdir(DIR));
117: closedir(DIR);
118: $depth ++;
119: foreach my $item (@contents) {
120: if ($depth < 4) {
121: &recurse_courses($cdom,$dir.'/'.$item,$depth,$courseshash,
122: $currhash,$lastaccess,$autoassign,$fh);
123: } elsif ($item =~ /^$match_courseid$/) {
124: my $cnum = $item;
125: my $cid = $cdom.'_'.$cnum;
126: unless (ref($currhash->{$cid}) eq 'HASH') {
127: my $is_course = 0;
128: if (-e "$dir/$cnum/passwd") {
129: if (open(my $pwfh,"<$dir/$cnum/passwd")) {
130: while (<$pwfh>) {
131: if (/^none:/) {
132: $is_course = 1;
133: last;
134: }
135: }
136: }
137: }
138: next unless ($is_course);
139: my @stats = stat("$dir/$cnum/passwd");
140: print $fh "Course missing from nohist_courseids.db: $cid, created:".localtime($stats[9])."\n";
141: }
142: my %courseinfo=&Apache::lonnet::coursedescription($cid,{'one_time' => '1'});
143: my %changes = ();
144: my $crstype = $courseinfo{'type'};
145: if ($crstype eq '') {
146: if ($cnum =~ /^$match_community$/) {
147: $crstype = 'Community';
148: } else {
149: $crstype = 'Course';
150: }
151: $changes{'type'} = $crstype;
152: }
153: my $chome = &Apache::lonnet::homeserver($cnum,$cdom);
154: my $owner = $courseinfo{'internal.courseowner'};
155: my $twodaysago = time - 172800;
156: my (%roleshash,$gotcc,$reqdmajor,$reqdminor);
157: if ($owner eq '') {
158: %roleshash = &Apache::lonnet::get_my_roles($cnum,$cdom,undef,undef,['cc'],undef,undef,1);
159: $gotcc = 1;
160: if (keys(%roleshash) == 1) {
161: foreach my $key (keys(%roleshash)) {
162: if ($key =~ /^($match_username\:$match_domain)\:cc$/) {
163: $owner = $1;
164: $changes{'internal.courseowner'} = $owner;
165: }
166: }
167: }
168: } elsif ($owner !~ /:/) {
169: if ($owner =~ /^$match_username$/) {
170: my $ownerhome=&Apache::lonnet::homeserver($owner,$cdom);
171: unless (($ownerhome eq '') || ($ownerhome eq 'no_host')) {
172: $owner .= ':'.$cdom;
173: $changes{'internal.courseowner'} = $owner;
174: }
175: }
176: }
177: my $created = $courseinfo{'internal.created'};
178: my $creator = $courseinfo{'internal.creator'};
179: my $creationcontext = $courseinfo{'internal.creationcontext'};
180: my $inst_code = $courseinfo{'internal.coursecode'};
181: my $releaserequired = $courseinfo{'internal.releaserequired'};
182: $inst_code = '' if (!defined($inst_code));
183: $owner = '' if (!defined($owner));
184: if ($created eq '') {
185: if (ref($currhash->{$cid}) eq 'HASH') {
186: $created = $currhash->{$cid}{'created'};
187: $creator = $currhash->{$cid}{'creator'};
188: $creationcontext = $currhash->{$cid}{'context'};
189: unless ($created eq '') {
190: $changes{'internal.created'} = $created;
191: }
192: if ($creator =~ /^($LONCAPA::match_username):($LONCAPA::match_domain)$/) {
193: $changes{'internal.creator'} = $creator;
194: }
195: unless ($creationcontext eq '') {
196: $changes{'internal.creationcontext'} = $creationcontext;
197: }
198: }
199: if ($created eq '') {
200: if (-e "$dir/$cnum/passwd") {
201: my @stats = stat("$dir/$cnum/passwd");
202: $created = $stats[9];
203: }
204: if ($lastaccess->{$cid}) {
205: if ($created eq '') {
206: $created = $lastaccess->{$cid};
207: } elsif ($lastaccess->{$cid} < $created) {
208: $created = $lastaccess->{$cid};
209: }
210: }
211: unless ($created eq '') {
212: $changes{'internal.created'} = $created;
213: }
214: }
215: }
216:
217: if (($chome ne '') && ($lastaccess->{$cid} > $twodaysago)) {
218: $env{'request.course.id'} = $cdom.'_'.$cnum;
219: $env{'request.role'} = 'cc./'.$cdom.'/'.$cnum;
220: &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
221:
222: # check all parameters
223: ($reqdmajor,$reqdminor) = ¶meter_constraints($cnum,$cdom);
224:
225: # check course type
226: ($reqdmajor,$reqdminor) = &coursetype_constraints($cnum,$cdom,$crstype,
227: $reqdmajor,
228: $reqdminor);
229: # check course contents
230: ($reqdmajor,$reqdminor) = &coursecontent_constraints($cnum,$cdom,
231: $reqdmajor,
232: $reqdminor);
233: delete($env{'request.course.id'});
234: delete($env{'request.role'});
235: } elsif ($releaserequired) {
236: ($reqdmajor,$reqdminor) = split(/\./,$releaserequired);
237: }
238:
239: unless ($chome eq 'no_host') {
240: $courseshash->{$chome}{$cid} = {
241: description => $courseinfo{'description'},
242: inst_code => $inst_code,
243: owner => $owner,
244: type => $crstype,
245: };
246: if ($creator ne '') {
247: $courseshash->{$chome}{$cid}{'creator'} = $creator;
248: }
249: if ($created ne '') {
250: $courseshash->{$chome}{$cid}{'created'} = $created;
251: }
252: if ($creationcontext ne '') {
253: $courseshash->{$chome}{$cid}{'context'} = $creationcontext;
254: }
255: if (($inst_code ne '') && ($autoassign)) {
256: unless ($gotcc) {
257: %roleshash = &Apache::lonnet::get_my_roles($cnum,$cdom,undef,undef,['cc'],undef,undef,1);
258: }
259: my @currcoowners;
260: my @newcoowners;
261: if ($courseinfo{'internal.co-owners'} ne '') {
262: @currcoowners = split(',',$courseinfo{'internal.co-owners'});
263: }
264: foreach my $key (keys(%roleshash)) {
265: if ($key =~ /^($match_username\:$match_domain)\:cc$/) {
266: my $cc = $1;
267: unless ($cc eq $owner) {
268: my ($result,$desc) = &Apache::lonnet::auto_validate_instcode($cnum,$cdom,$inst_code,$cc);
269: if ($result eq 'valid') {
270: if (@newcoowners > 0) {
271: unless (grep(/^\Q$cc\E$/,@newcoowners)) {
272: push(@newcoowners,$cc);
273: }
274: } else {
275: push(@newcoowners,$cc);
276: }
277: }
278: }
279: }
280: }
281: my @diffs = &Apache::loncommon::compare_arrays(\@currcoowners,\@newcoowners);
282: if (@diffs > 0) {
283: if (@newcoowners > 0) {
284: $changes{'internal.co-owners'} = join(',',@newcoowners);
285: $courseshash->{$chome}{$cid}{'co-owners'} = $changes{'internal.co-owners'};
286: } else {
287: if ($courseinfo{'internal.co-owners'} ne '') {
288: if (&Apache::lonnet::del('environment',['internal.co-owners'],$cdom,$cnum) eq 'ok') {
289: print $fh "Former co-owner(s): $courseinfo{'internal.co-owners'} for official course: $inst_code (".$cdom."_".$cnum.") no longer active CCs, co-ownership status deleted.\n";
290: }
291: } else {
292: print $fh "Error occurred when updating co-ownership in course's environment.db for ".$cdom."_".$cnum."\n";
293: }
294: }
295: } elsif (@currcoowners > 0) {
296: $courseshash->{$chome}{$cid}{'co-owners'} = $courseinfo{'internal.co-owners'};
297: }
298: } elsif ($courseinfo{'internal.co-owners'} ne '') {
299: $courseshash->{$chome}{$cid}{'co-owners'} = $courseinfo{'internal.co-owners'};
300: }
301: foreach my $item ('categories','cloners','hidefromcat') {
302: if ($courseinfo{$item} ne '') {
303: $courseshash->{$chome}{$cid}{$item} = $courseinfo{$item};
304: }
305: }
306: foreach my $item ('selfenroll_types','selfenroll_start_date','selfenroll_end_date') {
307: if ($courseinfo{'internal.'.$item} ne '') {
308: $courseshash->{$chome}{$cid}{$item} =
309: $courseinfo{'internal.'.$item};
310: }
311: }
312: if ($reqdmajor eq '' && $reqdminor eq '') {
313: if ($courseinfo{'internal.releaserequired'} ne '') {
314: $changes{'internal.releaserequired'} = '';
315: }
316: } else {
317: my $releasereq = $reqdmajor.'.'.$reqdminor;
318: $courseshash->{$chome}{$cid}{'releaserequired'} = $releasereq;
319: if ($courseinfo{'internal.releaserequired'} eq '') {
320: $changes{'internal.releaserequired'} = $releasereq;
321: } else {
322: if ($courseinfo{'internal.releaserequired'} ne $releasereq) {
323:
324: $changes{'internal.releaserequired'} = $releasereq;
325: }
326: }
327: }
328: if (keys(%changes)) {
329: if (&Apache::lonnet::put('environment',\%changes,$cdom,$cnum) eq 'ok') {
330: print $fh "Course's environment.db for ".$cdom."_".$cnum." successfully updated with following entries: ";
331: foreach my $key (sort(keys(%changes))) {
332: print $fh "$key => $changes{$key} ";
333: }
334: print $fh "\n";
335: } else {
336: print $fh "Error occurred when updating course's environment.db for ".$cdom."_".$cnum."\n";
337: }
338: }
339: }
340: }
341: }
342: }
343: return;
344: }
345:
346: sub parameter_constraints {
347: my ($cnum,$cdom) = @_;
348: my ($reqdmajor,$reqdminor);
349: my $resourcedata=&read_paramdata($cnum,$cdom);
350: if (ref($resourcedata) eq 'HASH') {
351: foreach my $key (keys(%{$resourcedata})) {
352: foreach my $item (keys(%checkparms)) {
353: if ($key =~ /(\Q$item\E)$/) {
354: if (ref($checkparms{$item}) eq 'ARRAY') {
355: my $value = $resourcedata->{$key};
356: if (grep(/^\Q$value\E$/,@{$checkparms{$item}})) {
357: my ($major,$minor) = split(/\./,$Apache::lonnet::needsrelease{'parameter:'.$item.':'.$value});
358: ($reqdmajor,$reqdminor) =
359: &update_reqd_loncaparev($major,$minor,$reqdmajor,$reqdminor);
360: }
361: }
362: }
363: }
364: }
365: }
366: return ($reqdmajor,$reqdminor);
367: }
368:
369: sub coursetype_constraints {
370: my ($cnum,$cdom,$crstype,$reqdmajor,$reqdminor) = @_;
371: if (defined($checkcrstypes{$crstype})) {
372: my ($major,$minor) = split(/\./,$checkcrstypes{$crstype});
373: ($reqdmajor,$reqdminor) =
374: &update_reqd_loncaparev($major,$minor,$reqdmajor,$reqdminor);
375: }
376: return ($reqdmajor,$reqdminor);
377: }
378:
379: sub coursecontent_constraints {
380: my ($cnum,$cdom,$reqdmajor,$reqdminor) = @_;
381: my $navmap = Apache::lonnavmaps::navmap->new();
382: if (defined($navmap)) {
383: my %anonsubmissions = &Apache::lonnet::dump('nohist_anonsurveys',
384: $cdom,$cnum);
385: my %allresponses;
386: my $anonsurv_subm;
387: foreach my $res ($navmap->retrieveResources(undef,sub { $_[0]->is_problem() },1,0)) {
388: my %responses = $res->responseTypes();
389: foreach my $key (keys(%responses)) {
390: next unless(exists($checkresponsetypes{$key}));
391: $allresponses{$key} += $responses{$key};
392: }
393: my @parts = @{$res->parts()};
394: my $symb = $res->symb();
395: foreach my $part (@parts) {
396: if (exists($anonsubmissions{$symb."\0".$part})) {
397: $anonsurv_subm = 1;
398: }
399: }
400: }
401: foreach my $key (keys(%allresponses)) {
402: my ($major,$minor) = split(/\./,$checkresponsetypes{$key});
403: ($reqdmajor,$reqdminor) = &update_reqd_loncaparev($major,$minor,$reqdmajor,$reqdminor);
404: }
405: if ($anonsurv_subm) {
406: ($reqdmajor,$reqdminor) = &update_reqd_loncaparev($anonsurvey{major},
407: $anonsurvey{minor},$reqdmajor,$reqdminor);
408: }
409: }
410: return ($reqdmajor,$reqdminor);
411: }
412:
413: sub update_reqd_loncaparev {
414: my ($major,$minor,$reqdmajor,$reqdminor) = @_;
415: if (($major ne '' && $major !~ /\D/) & ($minor ne '' && $minor !~ /\D/)) {
416: if ($reqdmajor eq '' || $reqdminor eq '') {
417: $reqdmajor = $major;
418: $reqdminor = $minor;
419: } elsif (($major > $reqdmajor) ||
420: ($major == $reqdmajor && $minor > $reqdminor)) {
421: $reqdmajor = $major;
422: $reqdminor = $minor;
423: }
424: }
425: return ($reqdmajor,$reqdminor);
426: }
427:
428: sub read_paramdata {
429: my ($cnum,$dom)=@_;
430: my $resourcedata=&Apache::lonnet::get_courseresdata($cnum,$dom);
431: my $classlist=&Apache::loncoursedata::get_classlist();
432: foreach my $student (keys(%{$classlist})) {
433: if ($student =~/^($LONCAPA::match_username)\:($LONCAPA::match_domain)$/) {
434: my ($tuname,$tudom)=($1,$2);
435: my $useropt=&Apache::lonnet::get_userresdata($tuname,$tudom);
436: foreach my $userkey (keys(%{$useropt})) {
437: if ($userkey=~/^$env{'request.course.id'}/) {
438: my $newkey=$userkey;
439: $newkey=~s/^($env{'request.course.id'}\.)/$1\[useropt\:$tuname\:$tudom\]\./;
440: $$resourcedata{$newkey}=$$useropt{$userkey};
441: }
442: }
443: }
444: }
445: return $resourcedata;
446: }
447:
448: sub build_release_hashes {
449: foreach my $key (keys(%Apache::lonnet::needsrelease)) {
450: my ($item,$name,$value) = split(/:/,$key);
451: if ($item eq 'parameter') {
452: if (ref($checkparms{$name}) eq 'ARRAY') {
453: unless(grep(/^\Q$name\E$/,@{$checkparms{$name}})) {
454: push(@{$checkparms{$name}},$value);
455: }
456: } else {
457: push(@{$checkparms{$name}},$value);
458: }
459: } elsif ($item eq 'resourcetag') {
460: if ($name eq 'responsetype') {
461: $checkresponsetypes{$value} = $Apache::lonnet::needsrelease{$key}
462: }
463: } elsif ($item eq 'course') {
464: if ($name eq 'crstype') {
465: $checkcrstypes{$value} = $Apache::lonnet::needsrelease{$key};
466: }
467: }
468: }
469: ($anonsurvey{major},$anonsurvey{minor}) = split(/\./,$Apache::lonnet::needsrelease{'parameter:type:anonsurvey'});
470: return;
471: }
472:
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