1: #!/usr/bin/perl
2: # The LearningOnline Network
3: #
4: # $Id: refresh_courseids_db.pl,v 1.17 2013/12/25 20:43:51 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 %randomizetry );
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: &Apache::loncommon::build_release_hashes(\%checkparms,\%checkresponsetypes,
84: \%checkcrstypes,\%anonsurvey,\%randomizetry);
85: $env{'allowed.bre'} = 'F';
86:
87: foreach my $dom (@domains) {
88: $env{'user.domain'} = $dom;
89: $env{'user.name'} = &Apache::lonnet::get_domainconfiguser($dom);
90: my %courseshash;
91: my %currhash = &Apache::lonnet::courseiddump($dom,'.',1,'.','.','.',1,\@ids,'.');
92: my %lastaccess = &Apache::lonnet::courselastaccess($dom,undef,\@ids);
93: my $dir = $Apache::lonnet::perlvar{lonUsersDir}.'/'.$dom;
94: my %domdesign = &Apache::loncommon::get_domainconf($dom);
95: my $autoassign = $domdesign{$dom.'.autoassign.co-owners'};
96: &recurse_courses($dom,$dir,0,\%courseshash,\%currhash,\%lastaccess,$autoassign,$fh);
97: foreach my $lonhost (keys(%courseshash)) {
98: if (ref($courseshash{$lonhost}) eq 'HASH') {
99: if (&Apache::lonnet::courseidput($dom,$courseshash{$lonhost},$lonhost,'notime') eq 'ok') {
100: print $fh "nohist_courseids.db updated successfully for domain $dom on lonHostID $lonhost\n";
101: } else {
102: print $fh "Error occurred when updating nohist_courseids.db for domain $dom on lonHostID $lonhost\n";
103: }
104: }
105: }
106: delete($env{'user.name'});
107: delete($env{'user.domain'});
108: }
109:
110: delete($env{'allowed.bre'});
111:
112: ## Finished!
113: print $fh "==== refresh_courseids.db completed ".localtime()." ====\n";
114: close($fh);
115:
116: sub recurse_courses {
117: my ($cdom,$dir,$depth,$courseshash,$currhash,$lastaccess,$autoassign,$fh) = @_;
118: next unless (ref($currhash) eq 'HASH');
119: if (-d $dir) {
120: opendir(DIR,$dir);
121: my @contents = grep(!/^\./,readdir(DIR));
122: closedir(DIR);
123: $depth ++;
124: foreach my $item (@contents) {
125: if ($depth < 4) {
126: &recurse_courses($cdom,$dir.'/'.$item,$depth,$courseshash,
127: $currhash,$lastaccess,$autoassign,$fh);
128: } elsif ($item =~ /^$match_courseid$/) {
129: my $cnum = $item;
130: my $cid = $cdom.'_'.$cnum;
131: unless (ref($currhash->{$cid}) eq 'HASH') {
132: my $is_course = 0;
133: if (-e "$dir/$cnum/passwd") {
134: if (open(my $pwfh,"<$dir/$cnum/passwd")) {
135: while (<$pwfh>) {
136: if (/^none:/) {
137: $is_course = 1;
138: last;
139: }
140: }
141: }
142: }
143: next unless ($is_course);
144: my @stats = stat("$dir/$cnum/passwd");
145: print $fh "Course missing from nohist_courseids.db: $cid, created:".localtime($stats[9])."\n";
146: }
147: my %courseinfo=&Apache::lonnet::coursedescription($cid,{'one_time' => '1'});
148: my %changes = ();
149: my $crstype = $courseinfo{'type'};
150: if ($crstype eq '') {
151: if ($cnum =~ /^$match_community$/) {
152: $crstype = 'Community';
153: } else {
154: $crstype = 'Course';
155: }
156: $changes{'type'} = $crstype;
157: }
158: my $chome = &Apache::lonnet::homeserver($cnum,$cdom);
159: my $owner = $courseinfo{'internal.courseowner'};
160: my $twodaysago = time - 172800;
161: my (%roleshash,$gotcc,$reqdmajor,$reqdminor);
162: if ($owner eq '') {
163: %roleshash = &Apache::lonnet::get_my_roles($cnum,$cdom,undef,undef,['cc'],undef,undef,1);
164: $gotcc = 1;
165: if (keys(%roleshash) == 1) {
166: foreach my $key (keys(%roleshash)) {
167: if ($key =~ /^($match_username\:$match_domain)\:cc$/) {
168: $owner = $1;
169: $changes{'internal.courseowner'} = $owner;
170: }
171: }
172: }
173: } elsif ($owner !~ /:/) {
174: if ($owner =~ /^$match_username$/) {
175: my $ownerhome=&Apache::lonnet::homeserver($owner,$cdom);
176: unless (($ownerhome eq '') || ($ownerhome eq 'no_host')) {
177: $owner .= ':'.$cdom;
178: $changes{'internal.courseowner'} = $owner;
179: }
180: }
181: }
182: my $created = $courseinfo{'internal.created'};
183: my $creator = $courseinfo{'internal.creator'};
184: my $creationcontext = $courseinfo{'internal.creationcontext'};
185: my $inst_code = $courseinfo{'internal.coursecode'};
186: my $releaserequired = $courseinfo{'internal.releaserequired'};
187: my $uniquecode = $courseinfo{'internal.uniquecode'};
188: $inst_code = '' if (!defined($inst_code));
189: $owner = '' if (!defined($owner));
190: $uniquecode = '' if (!defined($uniquecode));
191: if ($created eq '') {
192: if (ref($currhash->{$cid}) eq 'HASH') {
193: $created = $currhash->{$cid}{'created'};
194: $creator = $currhash->{$cid}{'creator'};
195: $creationcontext = $currhash->{$cid}{'context'};
196: unless ($created eq '') {
197: $changes{'internal.created'} = $created;
198: }
199: if ($creator =~ /^($LONCAPA::match_username):($LONCAPA::match_domain)$/) {
200: $changes{'internal.creator'} = $creator;
201: }
202: unless ($creationcontext eq '') {
203: $changes{'internal.creationcontext'} = $creationcontext;
204: }
205: }
206: if ($created eq '') {
207: if (-e "$dir/$cnum/passwd") {
208: my @stats = stat("$dir/$cnum/passwd");
209: $created = $stats[9];
210: }
211: if ($lastaccess->{$cid}) {
212: if ($created eq '') {
213: $created = $lastaccess->{$cid};
214: } elsif ($lastaccess->{$cid} < $created) {
215: $created = $lastaccess->{$cid};
216: }
217: }
218: unless ($created eq '') {
219: $changes{'internal.created'} = $created;
220: }
221: }
222: }
223:
224: if (($chome ne '') && ($lastaccess->{$cid} > $twodaysago)) {
225: $env{'request.course.id'} = $cdom.'_'.$cnum;
226: $env{'request.role'} = 'cc./'.$cdom.'/'.$cnum;
227: &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
228:
229: # check all parameters
230: ($reqdmajor,$reqdminor) = ¶meter_constraints($cnum,$cdom);
231:
232: # check course type
233: ($reqdmajor,$reqdminor) = &coursetype_constraints($cnum,$cdom,$crstype,
234: $reqdmajor,
235: $reqdminor);
236: # check communication blocks
237: ($reqdmajor,$reqdminor) = &commblock_constraints($cnum,$cdom,
238: $reqdmajor,
239: $reqdminor);
240: # check course contents
241: ($reqdmajor,$reqdminor) = &coursecontent_constraints($cnum,$cdom,
242: $reqdmajor,
243: $reqdminor);
244: delete($env{'request.course.id'});
245: delete($env{'request.role'});
246: } elsif ($releaserequired) {
247: ($reqdmajor,$reqdminor) = split(/\./,$releaserequired);
248: }
249:
250: unless ($chome eq 'no_host') {
251: if (($lastaccess->{$cid} eq '') ||
252: ($lastaccess->{$cid} > $twodaysago)) {
253: my $contentchange;
254: if ($courseinfo{'internal.created'} eq '') {
255: $contentchange = &last_map_update($cnum,$cdom);
256: } else {
257: unless ($courseinfo{'internal.created'} > $lastaccess->{$cid}) {
258: $contentchange = &last_map_update($cnum,$cdom);
259: }
260: }
261: if (($contentchange) && ($contentchange > $courseinfo{'internal.contentchange'})) {
262: $changes{'internal.contentchange'} = $contentchange;
263: }
264: }
265: $courseshash->{$chome}{$cid} = {
266: description => $courseinfo{'description'},
267: inst_code => $inst_code,
268: owner => $owner,
269: type => $crstype,
270: };
271: if ($creator ne '') {
272: $courseshash->{$chome}{$cid}{'creator'} = $creator;
273: }
274: if ($created ne '') {
275: $courseshash->{$chome}{$cid}{'created'} = $created;
276: }
277: if ($creationcontext ne '') {
278: $courseshash->{$chome}{$cid}{'context'} = $creationcontext;
279: }
280: if (($inst_code ne '') && ($autoassign)) {
281: unless ($gotcc) {
282: %roleshash = &Apache::lonnet::get_my_roles($cnum,$cdom,undef,undef,['cc'],undef,undef,1);
283: }
284: my @currcoowners;
285: my @newcoowners;
286: if ($courseinfo{'internal.co-owners'} ne '') {
287: @currcoowners = split(',',$courseinfo{'internal.co-owners'});
288: }
289: foreach my $key (keys(%roleshash)) {
290: if ($key =~ /^($match_username\:$match_domain)\:cc$/) {
291: my $cc = $1;
292: unless ($cc eq $owner) {
293: my ($result,$desc) = &Apache::lonnet::auto_validate_instcode($cnum,$cdom,$inst_code,$cc);
294: if ($result eq 'valid') {
295: if (@newcoowners > 0) {
296: unless (grep(/^\Q$cc\E$/,@newcoowners)) {
297: push(@newcoowners,$cc);
298: }
299: } else {
300: push(@newcoowners,$cc);
301: }
302: }
303: }
304: }
305: }
306: my @diffs = &Apache::loncommon::compare_arrays(\@currcoowners,\@newcoowners);
307: if (@diffs > 0) {
308: if (@newcoowners > 0) {
309: $changes{'internal.co-owners'} = join(',',@newcoowners);
310: $courseshash->{$chome}{$cid}{'co-owners'} = $changes{'internal.co-owners'};
311: } else {
312: if ($courseinfo{'internal.co-owners'} ne '') {
313: if (&Apache::lonnet::del('environment',['internal.co-owners'],$cdom,$cnum) eq 'ok') {
314: 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";
315: }
316: } else {
317: print $fh "Error occurred when updating co-ownership in course's environment.db for ".$cdom."_".$cnum."\n";
318: }
319: }
320: } elsif (@currcoowners > 0) {
321: $courseshash->{$chome}{$cid}{'co-owners'} = $courseinfo{'internal.co-owners'};
322: }
323: } elsif ($courseinfo{'internal.co-owners'} ne '') {
324: $courseshash->{$chome}{$cid}{'co-owners'} = $courseinfo{'internal.co-owners'};
325: }
326: foreach my $item ('categories','cloners','hidefromcat') {
327: if ($courseinfo{$item} ne '') {
328: $courseshash->{$chome}{$cid}{$item} = $courseinfo{$item};
329: }
330: }
331: foreach my $item ('selfenroll_types','selfenroll_start_date','selfenroll_end_date','uniquecode') {
332: if ($courseinfo{'internal.'.$item} ne '') {
333: $courseshash->{$chome}{$cid}{$item} =
334: $courseinfo{'internal.'.$item};
335: }
336: }
337: if ($reqdmajor eq '' && $reqdminor eq '') {
338: if ($courseinfo{'internal.releaserequired'} ne '') {
339: $changes{'internal.releaserequired'} = '';
340: }
341: } else {
342: my $releasereq = $reqdmajor.'.'.$reqdminor;
343: $courseshash->{$chome}{$cid}{'releaserequired'} = $releasereq;
344: if ($courseinfo{'internal.releaserequired'} eq '') {
345: $changes{'internal.releaserequired'} = $releasereq;
346: } else {
347: if ($courseinfo{'internal.releaserequired'} ne $releasereq) {
348:
349: $changes{'internal.releaserequired'} = $releasereq;
350: }
351: }
352: }
353: if (keys(%changes)) {
354: if (&Apache::lonnet::put('environment',\%changes,$cdom,$cnum) eq 'ok') {
355: print $fh "Course's environment.db for ".$cdom."_".$cnum." successfully updated with following entries: ";
356: foreach my $key (sort(keys(%changes))) {
357: print $fh "$key => $changes{$key} ";
358: }
359: print $fh "\n";
360: } else {
361: print $fh "Error occurred when updating course's environment.db for ".$cdom."_".$cnum."\n";
362: }
363: }
364: }
365: }
366: }
367: }
368: return;
369: }
370:
371: sub parameter_constraints {
372: my ($cnum,$cdom) = @_;
373: my ($reqdmajor,$reqdminor);
374: my $resourcedata=&read_paramdata($cnum,$cdom);
375: if (ref($resourcedata) eq 'HASH') {
376: foreach my $key (keys(%{$resourcedata})) {
377: foreach my $item (keys(%checkparms)) {
378: if ($key =~ /(\Q$item\E)$/) {
379: if (ref($checkparms{$item}) eq 'ARRAY') {
380: my $value = $resourcedata->{$key};
381: if ($item eq 'examcode') {
382: if (&Apache::lonnet::validCODE($value)) {
383: $value = 'valid';
384: } else {
385: $value = '';
386: }
387: }
388: if (grep(/^\Q$value\E$/,@{$checkparms{$item}})) {
389: my ($major,$minor) = split(/\./,$Apache::lonnet::needsrelease{'parameter:'.$item.':'.$value});
390: ($reqdmajor,$reqdminor) =
391: &update_reqd_loncaparev($major,$minor,$reqdmajor,$reqdminor);
392: }
393: }
394: }
395: }
396: }
397: }
398: return ($reqdmajor,$reqdminor);
399: }
400:
401: sub coursetype_constraints {
402: my ($cnum,$cdom,$crstype,$reqdmajor,$reqdminor) = @_;
403: if (defined($checkcrstypes{$crstype})) {
404: my ($major,$minor) = split(/\./,$checkcrstypes{$crstype});
405: ($reqdmajor,$reqdminor) =
406: &update_reqd_loncaparev($major,$minor,$reqdmajor,$reqdminor);
407: }
408: return ($reqdmajor,$reqdminor);
409: }
410:
411: sub commblock_constraints {
412: my ($cnum,$cdom,$reqdmajor,$reqdminor) = @_;
413: my %comm_blocks = &Apache::lonnet::dump('commblock',$cdom,$cnum);
414: my $now = time;
415: if (keys(%comm_blocks) > 0) {
416: foreach my $block (keys(%comm_blocks)) {
417: if ($block =~ /^firstaccess____(.+)$/) {
418: my ($major,$minor) = split(/\./,$Apache::lonnet::needsrelease{'course.commblock.timer'});
419: ($reqdmajor,$reqdminor) = &update_reqd_loncaparev($major,$minor,$reqdmajor,$reqdminor);
420: last;
421: } elsif ($block =~ /^(\d+)____(\d+)$/) {
422: my ($start,$end) = ($1,$2);
423: next if ($end < $now);
424: }
425: if (ref($comm_blocks{$block}) eq 'HASH') {
426: if (ref($comm_blocks{$block}{'blocks'}) eq 'HASH') {
427: if (ref($comm_blocks{$block}{'blocks'}{'docs'}) eq 'HASH') {
428: if (keys(%{$comm_blocks{$block}{'blocks'}{'docs'}}) > 0) {
429: my ($major,$minor) = split(/\./,$Apache::lonnet::needsrelease{'course.commblock.docs'});
430: ($reqdmajor,$reqdminor) = &update_reqd_loncaparev($major,$minor,$reqdmajor,$reqdminor);
431: last;
432: }
433: }
434: }
435: }
436: }
437: }
438: return;
439: }
440:
441: sub coursecontent_constraints {
442: my ($cnum,$cdom,$reqdmajor,$reqdminor) = @_;
443: my $navmap = Apache::lonnavmaps::navmap->new();
444: if (defined($navmap)) {
445: my %anonsubmissions = &Apache::lonnet::dump('nohist_anonsurveys',
446: $cdom,$cnum);
447: my %randomizetrysubm = &Apache::lonnet::dump('nohist_randomizetry',
448: $cdom,$cnum);
449: my %allresponses;
450: my ($anonsurv_subm,$randbytry_subm);
451: foreach my $res ($navmap->retrieveResources(undef,sub { $_[0]->is_problem() },1,0)) {
452: my %responses = $res->responseTypes();
453: foreach my $key (keys(%responses)) {
454: next unless(exists($checkresponsetypes{$key}));
455: $allresponses{$key} += $responses{$key};
456: }
457: my @parts = @{$res->parts()};
458: my $symb = $res->symb();
459: foreach my $part (@parts) {
460: if (exists($anonsubmissions{$symb."\0".$part})) {
461: $anonsurv_subm = 1;
462: }
463: if (exists($randomizetrysubm{$symb."\0".$part})) {
464: $randbytry_subm = 1;
465: }
466: }
467: }
468: foreach my $key (keys(%allresponses)) {
469: my ($major,$minor) = split(/\./,$checkresponsetypes{$key});
470: ($reqdmajor,$reqdminor) = &update_reqd_loncaparev($major,$minor,$reqdmajor,$reqdminor);
471: }
472: if ($anonsurv_subm) {
473: ($reqdmajor,$reqdminor) = &update_reqd_loncaparev($anonsurvey{major},
474: $anonsurvey{minor},$reqdmajor,$reqdminor);
475: }
476: if ($randbytry_subm) {
477: ($reqdmajor,$reqdminor) = &update_reqd_loncaparev($randomizetry{major},
478: $randomizetry{minor},$reqdmajor,$reqdminor);
479: }
480: }
481: return ($reqdmajor,$reqdminor);
482: }
483:
484: sub update_reqd_loncaparev {
485: my ($major,$minor,$reqdmajor,$reqdminor) = @_;
486: if (($major ne '' && $major !~ /\D/) & ($minor ne '' && $minor !~ /\D/)) {
487: if ($reqdmajor eq '' || $reqdminor eq '') {
488: $reqdmajor = $major;
489: $reqdminor = $minor;
490: } elsif (($major > $reqdmajor) ||
491: ($major == $reqdmajor && $minor > $reqdminor)) {
492: $reqdmajor = $major;
493: $reqdminor = $minor;
494: }
495: }
496: return ($reqdmajor,$reqdminor);
497: }
498:
499: sub read_paramdata {
500: my ($cnum,$dom)=@_;
501: my $resourcedata=&Apache::lonnet::get_courseresdata($cnum,$dom);
502: my $classlist=&Apache::loncoursedata::get_classlist();
503: foreach my $student (keys(%{$classlist})) {
504: if ($student =~/^($LONCAPA::match_username)\:($LONCAPA::match_domain)$/) {
505: my ($tuname,$tudom)=($1,$2);
506: my $useropt=&Apache::lonnet::get_userresdata($tuname,$tudom);
507: foreach my $userkey (keys(%{$useropt})) {
508: if ($userkey=~/^$env{'request.course.id'}/) {
509: my $newkey=$userkey;
510: $newkey=~s/^($env{'request.course.id'}\.)/$1\[useropt\:$tuname\:$tudom\]\./;
511: $$resourcedata{$newkey}=$$useropt{$userkey};
512: }
513: }
514: }
515: }
516: return $resourcedata;
517: }
518:
519: sub last_map_update {
520: my ($cnum,$cdom) = @_;
521: my $lastupdate = 0;
522: my $path = &LONCAPA::propath($cdom,$cnum);
523: if (-d "$path/userfiles") {
524: if (opendir(my $dirh, "$path/userfiles")) {
525: my @maps = grep(/^default_?\d*\.(?:sequence|page)$/,readdir($dirh));
526: foreach my $map (@maps) {
527: my $mtime = (stat("$path/userfiles/$map"))[9];
528: if ($mtime > $lastupdate) {
529: $lastupdate = $mtime;
530: }
531: }
532: }
533: }
534: return $lastupdate;
535: }
536:
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