1: # The LearningOnline Network
2: # TCP networking package
3: #
4: # $Id: lonnet.pm,v 1.1521 2023/12/28 15:57:28 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: Apache::lonnet.pm
35:
36: =head1 SYNOPSIS
37:
38: This file is an interface to the lonc processes of
39: the LON-CAPA network as well as set of elaborated functions for handling information
40: necessary for navigating through a given cluster of LON-CAPA machines within a
41: domain. There are over 40 specialized functions in this module which handle the
42: reading and transmission of metadata, user information (ids, names, environments, roles,
43: logs), file information (storage, reading, directories, extensions, replication, embedded
44: styles and descriptors), educational resources (course descriptions, section names and
45: numbers), url hashing (to assign roles on a url basis), and translating abbreviated symbols to
46: and from more descriptive phrases or explanations.
47:
48: This is part of the LearningOnline Network with CAPA project
49: described at http://www.lon-capa.org.
50:
51: =head1 Package Variables
52:
53: These are largely undocumented, so if you decipher one please note it here.
54:
55: =over 4
56:
57: =item $processmarker
58:
59: Contains the time this process was started and this servers host id.
60:
61: =item $dumpcount
62:
63: Counts the number of times a message log flush has been attempted (regardless
64: of success) by this process. Used as part of the filename when messages are
65: delayed.
66:
67: =back
68:
69: =cut
70:
71: package Apache::lonnet;
72:
73: use strict;
74: use HTTP::Date;
75: use Image::Magick;
76: use CGI::Cookie;
77:
78: use Encode;
79:
80: use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir $deftex
81: $_64bit %env %protocol %loncaparevs %serverhomeIDs %needsrelease
82: %managerstab $passwdmin);
83:
84: my (%badServerCache, $memcache, %courselogs, %accesshash, %domainrolehash,
85: %userrolehash, $processmarker, $dumpcount, %coursedombuf,
86: %coursenumbuf, %coursehombuf, %coursedescrbuf, %courseinstcodebuf,
87: %courseownerbuf, %coursetypebuf,$locknum);
88:
89: use IO::Socket;
90: use GDBM_File;
91: use HTML::LCParser;
92: use Fcntl qw(:flock);
93: use Storable qw(thaw nfreeze);
94: use Time::HiRes qw( sleep gettimeofday tv_interval );
95: use Cache::Memcached;
96: use Digest::MD5;
97: use Math::Random;
98: use File::MMagic;
99: use Net::CIDR;
100: use Sys::Hostname::FQDN();
101: use LONCAPA qw(:DEFAULT :match);
102: use LONCAPA::Configuration;
103: use LONCAPA::lonmetadata;
104: use LONCAPA::Lond;
105: use LONCAPA::LWPReq;
106: use LONCAPA::transliterate;
107:
108: use File::Copy;
109:
110: my $readit;
111: my $max_connection_retries = 20; # Or some such value.
112:
113: require Exporter;
114:
115: our @ISA = qw (Exporter);
116: our @EXPORT = qw(%env);
117:
118:
119: # ------------------------------------ Logging (parameters, docs, slots, roles)
120: {
121: my $logid;
122: sub write_log {
123: my ($context,$hash_name,$storehash,$delflag,$uname,$udom,$cnum,$cdom)=@_;
124: if ($context eq 'course') {
125: if (($cnum eq '') || ($cdom eq '')) {
126: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
127: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
128: }
129: }
130: $logid ++;
131: my $now = time();
132: my $id=$now.'00000'.$$.'00000'.$logid;
133: my $ip = &get_requestor_ip();
134: my $logentry = {
135: $id => {
136: 'exe_uname' => $env{'user.name'},
137: 'exe_udom' => $env{'user.domain'},
138: 'exe_time' => $now,
139: 'exe_ip' => $ip,
140: 'delflag' => $delflag,
141: 'logentry' => $storehash,
142: 'uname' => $uname,
143: 'udom' => $udom,
144: }
145: };
146: return &put('nohist_'.$hash_name,$logentry,$cdom,$cnum);
147: }
148: }
149:
150: sub logtouch {
151: my $execdir=$perlvar{'lonDaemons'};
152: unless (-e "$execdir/logs/lonnet.log") {
153: open(my $fh,">>","$execdir/logs/lonnet.log");
154: close $fh;
155: }
156: my ($wwwuid,$wwwgid)=(getpwnam('www'))[2,3];
157: chown($wwwuid,$wwwgid,$execdir.'/logs/lonnet.log');
158: }
159:
160: sub logthis {
161: my $message=shift;
162: my $execdir=$perlvar{'lonDaemons'};
163: my $now=time;
164: my $local=localtime($now);
165: if (open(my $fh,">>","$execdir/logs/lonnet.log")) {
166: my $logstring = $local. " ($$): ".$message."\n"; # Keep any \'s in string.
167: print $fh $logstring;
168: close($fh);
169: }
170: return 1;
171: }
172:
173: sub logperm {
174: my $message=shift;
175: my $execdir=$perlvar{'lonDaemons'};
176: my $now=time;
177: my $local=localtime($now);
178: if (open(my $fh,">>","$execdir/logs/lonnet.perm.log")) {
179: print $fh "$now:$message:$local\n";
180: close($fh);
181: }
182: return 1;
183: }
184:
185: sub create_connection {
186: my ($hostname,$lonid) = @_;
187: my $client=IO::Socket::UNIX->new(Peer => $perlvar{'lonSockCreate'},
188: Type => SOCK_STREAM,
189: Timeout => 10);
190: return 0 if (!$client);
191: print $client (join(':',$hostname,$lonid,&machine_ids($hostname),$loncaparevs{$lonid})."\n");
192: my $result = <$client>;
193: chomp($result);
194: return 1 if ($result eq 'done');
195: return 0;
196: }
197:
198: sub get_server_timezone {
199: my ($cnum,$cdom) = @_;
200: my $home=&homeserver($cnum,$cdom);
201: if ($home ne 'no_host') {
202: my $cachetime = 24*3600;
203: my ($timezone,$cached)=&is_cached_new('servertimezone',$home);
204: if (defined($cached)) {
205: return $timezone;
206: } else {
207: my $timezone = &reply('servertimezone',$home);
208: return &do_cache_new('servertimezone',$home,$timezone,$cachetime);
209: }
210: }
211: }
212:
213: sub get_server_distarch {
214: my ($lonhost,$ignore_cache) = @_;
215: if (defined($lonhost)) {
216: if (!defined(&hostname($lonhost))) {
217: return;
218: }
219: my $cachetime = 12*3600;
220: if (!$ignore_cache) {
221: my ($distarch,$cached)=&is_cached_new('serverdistarch',$lonhost);
222: if (defined($cached)) {
223: return $distarch;
224: }
225: }
226: my $rep = &reply('serverdistarch',$lonhost);
227: unless ($rep eq 'unknown_command' || $rep eq 'no_such_host' ||
228: $rep eq 'con_lost' || $rep eq 'rejected' || $rep eq 'refused' ||
229: $rep eq '') {
230: return &do_cache_new('serverdistarch',$lonhost,$rep,$cachetime);
231: }
232: }
233: return;
234: }
235:
236: sub get_servercerts_info {
237: my ($lonhost,$hostname,$context) = @_;
238: return if ($lonhost eq '');
239: if ($hostname eq '') {
240: $hostname = &hostname($lonhost);
241: }
242: return if ($hostname eq '');
243: my ($rep,$uselocal);
244: if ($context eq 'install') {
245: $uselocal = 1;
246: } elsif (grep { $_ eq $lonhost } ¤t_machine_ids()) {
247: $uselocal = 1;
248: }
249: if (($context ne 'cgi') && ($context ne 'install') && ($uselocal)) {
250: my $distro = (split(/\:/,&get_server_distarch($lonhost)))[0];
251: if ($distro eq '') {
252: $uselocal = 0;
253: } elsif ($distro =~ /^(?:centos|redhat|scientific)(\d+)$/) {
254: if ($1 < 6) {
255: $uselocal = 0;
256: }
257: } elsif ($distro =~ /^(?:sles)(\d+)$/) {
258: if ($1 < 12) {
259: $uselocal = 0;
260: }
261: }
262: }
263: if ($uselocal) {
264: $rep = LONCAPA::Lond::server_certs(\%perlvar,$lonhost,$hostname);
265: } else {
266: $rep=&reply('servercerts',$lonhost);
267: }
268: my ($result,%returnhash);
269: if (($rep=~/^(refused|rejected|error)/) || ($rep eq 'con_lost') ||
270: ($rep eq 'unknown_cmd')) {
271: $result = $rep;
272: } else {
273: $result = 'ok';
274: my @pairs=split(/\&/,$rep);
275: foreach my $item (@pairs) {
276: my ($key,$value)=split(/=/,$item,2);
277: my $what = &unescape($key);
278: $returnhash{$what}=&thaw_unescape($value);
279: }
280: }
281: return ($result,\%returnhash);
282: }
283:
284: sub get_server_loncaparev {
285: my ($dom,$lonhost,$ignore_cache,$caller) = @_;
286: if (defined($lonhost)) {
287: if (!defined(&hostname($lonhost))) {
288: undef($lonhost);
289: }
290: }
291: if (!defined($lonhost)) {
292: if (defined(&domain($dom,'primary'))) {
293: $lonhost=&domain($dom,'primary');
294: if ($lonhost eq 'no_host') {
295: undef($lonhost);
296: }
297: }
298: }
299: if (defined($lonhost)) {
300: my $cachetime = 12*3600;
301: if (!$ignore_cache) {
302: my ($loncaparev,$cached)=&is_cached_new('serverloncaparev',$lonhost);
303: if (defined($cached)) {
304: return $loncaparev;
305: }
306: }
307: my ($answer,$loncaparev);
308: my @ids=¤t_machine_ids();
309: if (grep(/^\Q$lonhost\E$/,@ids)) {
310: $answer = $perlvar{'lonVersion'};
311: if ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) {
312: $loncaparev = $1;
313: }
314: } else {
315: $answer = &reply('serverloncaparev',$lonhost);
316: if (($answer eq 'unknown_cmd') || ($answer eq 'con_lost')) {
317: if ($caller eq 'loncron') {
318: my $hostname = &hostname($lonhost);
319: my $protocol = $protocol{$lonhost};
320: $protocol = 'http' if ($protocol ne 'https');
321: my $url = $protocol.'://'.$hostname.'/adm/about.html';
322: my $request=new HTTP::Request('GET',$url);
323: my $response=&LONCAPA::LWPReq::makerequest($lonhost,$request,'',\%perlvar,4,1);
324: unless ($response->is_error()) {
325: my $content = $response->content;
326: if ($content =~ /<p>VERSION\:\s*([\w.\-]+)<\/p>/) {
327: $loncaparev = $1;
328: }
329: }
330: } else {
331: $loncaparev = $loncaparevs{$lonhost};
332: }
333: } elsif ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) {
334: $loncaparev = $1;
335: }
336: }
337: return &do_cache_new('serverloncaparev',$lonhost,$loncaparev,$cachetime);
338: }
339: }
340:
341: sub get_server_homeID {
342: my ($hostname,$ignore_cache,$caller) = @_;
343: unless ($ignore_cache) {
344: my ($serverhomeID,$cached)=&is_cached_new('serverhomeID',$hostname);
345: if (defined($cached)) {
346: return $serverhomeID;
347: }
348: }
349: my $cachetime = 12*3600;
350: my $serverhomeID;
351: if ($caller eq 'loncron') {
352: my @machine_ids = &machine_ids($hostname);
353: foreach my $id (@machine_ids) {
354: my $response = &reply('serverhomeID',$id);
355: unless (($response eq 'unknown_cmd') || ($response eq 'con_lost')) {
356: $serverhomeID = $response;
357: last;
358: }
359: }
360: if ($serverhomeID eq '') {
361: $serverhomeID = $machine_ids[-1];
362: }
363: } else {
364: $serverhomeID = $serverhomeIDs{$hostname};
365: }
366: return &do_cache_new('serverhomeID',$hostname,$serverhomeID,$cachetime);
367: }
368:
369: sub get_remote_globals {
370: my ($lonhost,$whathash,$ignore_cache) = @_;
371: my ($result,%returnhash,%whatneeded);
372: if (ref($whathash) eq 'HASH') {
373: foreach my $what (sort(keys(%{$whathash}))) {
374: my $hashid = $lonhost.'-'.$what;
375: my ($response,$cached);
376: unless ($ignore_cache) {
377: ($response,$cached)=&is_cached_new('lonnetglobal',$hashid);
378: }
379: if (defined($cached)) {
380: $returnhash{$what} = $response;
381: } else {
382: $whatneeded{$what} = 1;
383: }
384: }
385: if (keys(%whatneeded) == 0) {
386: $result = 'ok';
387: } else {
388: my $requested = &freeze_escape(\%whatneeded);
389: my $rep=&reply('readlonnetglobal:'.$requested,$lonhost);
390: if (($rep=~/^(refused|rejected|error)/) || ($rep eq 'con_lost') ||
391: ($rep eq 'unknown_cmd')) {
392: $result = $rep;
393: } else {
394: $result = 'ok';
395: my @pairs=split(/\&/,$rep);
396: foreach my $item (@pairs) {
397: my ($key,$value)=split(/=/,$item,2);
398: my $what = &unescape($key);
399: my $hashid = $lonhost.'-'.$what;
400: $returnhash{$what}=&thaw_unescape($value);
401: &do_cache_new('lonnetglobal',$hashid,$returnhash{$what},600);
402: }
403: }
404: }
405: }
406: return ($result,\%returnhash);
407: }
408:
409: sub remote_devalidate_cache {
410: my ($lonhost,$cachekeys) = @_;
411: my $items;
412: return unless (ref($cachekeys) eq 'ARRAY');
413: my $cachestr = join('&',@{$cachekeys});
414: my $response = &reply('devalidatecache:'.&escape($cachestr),$lonhost);
415: return $response;
416: }
417:
418: sub sign_lti {
419: my ($cdom,$cnum,$crsdef,$type,$context,$url,$ltinum,$keynum,$paramsref,$inforef) = @_;
420: my $chome;
421: if (&domain($cdom) ne '') {
422: if ($crsdef) {
423: $chome = &homeserver($cnum,$cdom);
424: } else {
425: $chome = &domain($cdom,'primary');
426: }
427: }
428: if ($cdom && $chome && ($chome ne 'no_host')) {
429: if ((ref($paramsref) eq 'HASH') &&
430: (ref($inforef) eq 'HASH')) {
431: my $rep;
432: if (grep { $_ eq $chome } ¤t_machine_ids()) {
433: # domain information is hosted on this machine
434: $rep =
435: &LONCAPA::Lond::sign_lti_payload($cdom,$cnum,$crsdef,$type,
436: $context,$url,$ltinum,$keynum,
437: $perlvar{'lonVersion'},
438: $paramsref,$inforef);
439: if (ref($rep) eq 'HASH') {
440: return ('ok',$rep);
441: }
442: } else {
443: my ($escurl,$params,$info);
444: $escurl = &escape($url);
445: if (ref($paramsref) eq 'HASH') {
446: $params = &freeze_escape($paramsref);
447: }
448: if (ref($inforef) eq 'HASH') {
449: $info = &freeze_escape($inforef);
450: }
451: $rep=&reply("encrypt:signlti:$cdom:$cnum:$crsdef:$type:$context:$escurl:$ltinum:$keynum:$params:$info",$chome);
452: }
453: if (($rep eq '') || ($rep =~ /^con_lost|error|no_such_host|unknown_cmd/i)) {
454: return ();
455: } elsif (($inforef->{'respfmt'} eq 'to_post_body') ||
456: ($inforef->{'respfmt'} eq 'to_authorization_header')) {
457: return ('ok',$rep);
458: } else {
459: my %returnhash;
460: foreach my $item (split(/\&/,$rep)) {
461: my ($name,$value)=split(/\=/,$item);
462: $returnhash{&unescape($name)}=&thaw_unescape($value);
463: }
464: return('ok',\%returnhash);
465: }
466: } else {
467: return ();
468: }
469: } else {
470: return ();
471: &logthis("sign_lti failed - no homeserver and/or domain ($cdom) ($chome)");
472: }
473: }
474:
475: # -------------------------------------------------- Non-critical communication
476: sub subreply {
477: my ($cmd,$server)=@_;
478: my $peerfile="$perlvar{'lonSockDir'}/".&hostname($server);
479: #
480: # With loncnew process trimming, there's a timing hole between lonc server
481: # process exit and the master server picking up the listen on the AF_UNIX
482: # socket. In that time interval, a lock file will exist:
483:
484: my $lockfile=$peerfile.".lock";
485: while (-e $lockfile) { # Need to wait for the lockfile to disappear.
486: sleep(0.1);
487: }
488: # At this point, either a loncnew parent is listening or an old lonc
489: # or loncnew child is listening so we can connect or everything's dead.
490: #
491: # We'll give the connection a few tries before abandoning it. If
492: # connection is not possible, we'll con_lost back to the client.
493: #
494: my $client;
495: for (my $retries = 0; $retries < $max_connection_retries; $retries++) {
496: $client=IO::Socket::UNIX->new(Peer =>"$peerfile",
497: Type => SOCK_STREAM,
498: Timeout => 10);
499: if ($client) {
500: last; # Connected!
501: } else {
502: &create_connection(&hostname($server),$server);
503: }
504: sleep(0.1); # Try again later if failed connection.
505: }
506: my $answer;
507: if ($client) {
508: print $client "sethost:$server:$cmd\n";
509: $answer=<$client>;
510: if (!$answer) { $answer="con_lost"; }
511: chomp($answer);
512: } else {
513: $answer = 'con_lost'; # Failed connection.
514: }
515: return $answer;
516: }
517:
518: sub reply {
519: my ($cmd,$server)=@_;
520: unless (defined(&hostname($server))) { return 'no_such_host'; }
521: my $answer=subreply($cmd,$server);
522: if (($answer=~/^refused/) || ($answer=~/^rejected/)) {
523: my $logged = $cmd;
524: if ($cmd =~ /^encrypt:([^:]+):/) {
525: my $subcmd = $1;
526: if (($subcmd eq 'auth') || ($subcmd eq 'passwd') ||
527: ($subcmd eq 'changeuserauth') || ($subcmd eq 'makeuser') ||
528: ($subcmd eq 'putdom') || ($subcmd eq 'autoexportgrades') ||
529: ($subcmd eq 'put')) {
530: (undef,undef,my @rest) = split(/:/,$cmd);
531: if (($subcmd eq 'auth') || ($subcmd eq 'putdom')) {
532: splice(@rest,2,1,'Hidden');
533: } elsif ($subcmd eq 'passwd') {
534: splice(@rest,2,2,('Hidden','Hidden'));
535: } elsif (($subcmd eq 'changeuserauth') || ($subcmd eq 'makeuser') ||
536: ($subcmd eq 'autoexportgrades') || ($subcmd eq 'put')) {
537: splice(@rest,3,1,'Hidden');
538: }
539: $logged = join(':',('encrypt:'.$subcmd,@rest));
540: }
541: }
542: &logthis("<font color=\"blue\">WARNING:".
543: " $logged to $server returned $answer</font>");
544: }
545: return $answer;
546: }
547:
548: # ----------------------------------------------------------- Send USR1 to lonc
549:
550: sub reconlonc {
551: my ($lonid) = @_;
552: if ($lonid) {
553: my $hostname = &hostname($lonid);
554: my $peerfile="$perlvar{'lonSockDir'}/$hostname";
555: if ($hostname && -e $peerfile) {
556: &logthis("Trying to reconnect lonc for $lonid ($hostname)");
557: my $client=IO::Socket::UNIX->new(Peer => $peerfile,
558: Type => SOCK_STREAM,
559: Timeout => 10);
560: if ($client) {
561: print $client ("reset_retries\n");
562: my $answer=<$client>;
563: #reset just this one.
564: }
565: }
566: return;
567: }
568:
569: &logthis("Trying to reconnect lonc");
570: my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
571: if (open(my $fh,"<",$loncfile)) {
572: my $loncpid=<$fh>;
573: chomp($loncpid);
574: if (kill 0 => $loncpid) {
575: &logthis("lonc at pid $loncpid responding, sending USR1");
576: kill USR1 => $loncpid;
577: sleep 1;
578: } else {
579: &logthis(
580: "<font color=\"blue\">WARNING:".
581: " lonc at pid $loncpid not responding, giving up</font>");
582: }
583: } else {
584: &logthis('<font color="blue">WARNING: lonc not running, giving up</font>');
585: }
586: }
587:
588: # ------------------------------------------------------ Critical communication
589:
590: sub critical {
591: my ($cmd,$server)=@_;
592: unless (&hostname($server)) {
593: &logthis("<font color=\"blue\">WARNING:".
594: " Critical message to unknown server ($server)</font>");
595: return 'no_such_host';
596: }
597: my $answer=reply($cmd,$server);
598: if ($answer eq 'con_lost') {
599: &reconlonc($server);
600: my $answer=reply($cmd,$server);
601: if ($answer eq 'con_lost') {
602: my $now=time;
603: my $middlename=$cmd;
604: $middlename=substr($middlename,0,16);
605: $middlename=~s/\W//g;
606: my $dfilename=
607: "$perlvar{'lonSockDir'}/delayed/$now.$dumpcount.$$.$middlename.$server";
608: $dumpcount++;
609: {
610: my $dfh;
611: if (open($dfh,">",$dfilename)) {
612: print $dfh "$cmd\n";
613: close($dfh);
614: }
615: }
616: sleep 1;
617: my $wcmd='';
618: {
619: my $dfh;
620: if (open($dfh,"<",$dfilename)) {
621: $wcmd=<$dfh>;
622: close($dfh);
623: }
624: }
625: chomp($wcmd);
626: if ($wcmd eq $cmd) {
627: &logthis("<font color=\"blue\">WARNING: ".
628: "Connection buffer $dfilename: $cmd</font>");
629: &logperm("D:$server:$cmd");
630: return 'con_delayed';
631: } else {
632: &logthis("<font color=\"red\">CRITICAL:"
633: ." Critical connection failed: $server $cmd</font>");
634: &logperm("F:$server:$cmd");
635: return 'con_failed';
636: }
637: }
638: }
639: return $answer;
640: }
641:
642: # ------------------------------------------- check if return value is an error
643:
644: sub error {
645: my ($result) = @_;
646: if ($result =~ /^(con_lost|no_such_host|error: (\d+) (.*))/) {
647: if ($2 == 2) { return undef; }
648: return $1;
649: }
650: return undef;
651: }
652:
653: sub convert_and_load_session_env {
654: my ($lonidsdir,$handle)=@_;
655: my @profile;
656: {
657: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
658: if (!$opened) {
659: return 0;
660: }
661: flock($idf,LOCK_SH);
662: @profile=<$idf>;
663: close($idf);
664: }
665: my %temp_env;
666: foreach my $line (@profile) {
667: if ($line !~ m/=/) {
668: return 0;
669: }
670: chomp($line);
671: my ($envname,$envvalue)=split(/=/,$line,2);
672: $temp_env{&unescape($envname)} = &unescape($envvalue);
673: }
674: unlink("$lonidsdir/$handle.id");
675: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",&GDBM_WRCREAT(),
676: 0640)) {
677: %disk_env = %temp_env;
678: @env{keys(%temp_env)} = @disk_env{keys(%temp_env)};
679: untie(%disk_env);
680: }
681: return 1;
682: }
683:
684: # ------------------------------------------- Transfer profile into environment
685: my $env_loaded;
686: sub transfer_profile_to_env {
687: my ($lonidsdir,$handle,$force_transfer) = @_;
688: if (!$force_transfer && $env_loaded) { return; }
689:
690: if (!defined($lonidsdir)) {
691: $lonidsdir = $perlvar{'lonIDsDir'};
692: }
693: if (!defined($handle)) {
694: ($handle) = ($env{'user.environment'} =~m|/([^/]+)\.id$| );
695: }
696:
697: my $convert;
698: {
699: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
700: if (!$opened) {
701: return;
702: }
703: flock($idf,LOCK_SH);
704: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",
705: &GDBM_READER(),0640)) {
706: @env{keys(%disk_env)} = @disk_env{keys(%disk_env)};
707: untie(%disk_env);
708: } else {
709: $convert = 1;
710: }
711: }
712: if ($convert) {
713: if (!&convert_and_load_session_env($lonidsdir,$handle)) {
714: &logthis("Failed to load session, or convert session.");
715: }
716: }
717:
718: my %remove;
719: while ( my $envname = each(%env) ) {
720: if (my ($key,$time) = ($envname =~ /^(cgi\.(\d+)_\d+\.)/)) {
721: if ($time < time-300) {
722: $remove{$key}++;
723: }
724: }
725: }
726:
727: $env{'user.environment'} = "$lonidsdir/$handle.id";
728: $env_loaded=1;
729: foreach my $expired_key (keys(%remove)) {
730: &delenv($expired_key);
731: }
732: }
733:
734: # ---------------------------------------------------- Check for valid session
735: sub check_for_valid_session {
736: my ($r,$name,$userhashref,$domref) = @_;
737: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
738: my ($lonidsdir,$linkname,$pubname,$secure,$lonid);
739: if ($name eq 'lonDAV') {
740: $lonidsdir=$r->dir_config('lonDAVsessDir');
741: } else {
742: $lonidsdir=$r->dir_config('lonIDsDir');
743: if ($name eq '') {
744: $name = 'lonID';
745: }
746: }
747: if ($name eq 'lonID') {
748: $secure = 'lonSID';
749: $linkname = 'lonLinkID';
750: $pubname = 'lonPubID';
751: if (exists($cookies{$secure})) {
752: $lonid=$cookies{$secure};
753: } elsif (exists($cookies{$name})) {
754: $lonid=$cookies{$name};
755: } elsif ((exists($cookies{$linkname})) && ($ENV{'SERVER_PORT'} != 443)) {
756: $lonid=$cookies{$linkname};
757: } elsif (exists($cookies{$pubname})) {
758: $lonid=$cookies{$pubname};
759: }
760: } else {
761: $lonid=$cookies{$name};
762: }
763: return undef if (!$lonid);
764:
765: my $handle=&LONCAPA::clean_handle($lonid->value);
766: if (-l "$lonidsdir/$handle.id") {
767: my $link = readlink("$lonidsdir/$handle.id");
768: if ((-e $link) && ($link =~ m{^\Q$lonidsdir\E/(.+)\.id$})) {
769: $handle = $1;
770: }
771: }
772: if (!-e "$lonidsdir/$handle.id") {
773: if ((ref($domref)) && ($name eq 'lonID') &&
774: ($handle =~ /^($match_username)\_\d+\_($match_domain)\_(.+)$/)) {
775: my ($possuname,$possudom,$possuhome) = ($1,$2,$3);
776: if ((&domain($possudom) ne '') && (&homeserver($possuname,$possudom) eq $possuhome)) {
777: $$domref = $possudom;
778: }
779: }
780: return undef;
781: }
782:
783: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
784: return undef if (!$opened);
785:
786: flock($idf,LOCK_SH);
787: my %disk_env;
788: if (!tie(%disk_env,'GDBM_File',"$lonidsdir/$handle.id",
789: &GDBM_READER(),0640)) {
790: return undef;
791: }
792:
793: if (!defined($disk_env{'user.name'})
794: || !defined($disk_env{'user.domain'})) {
795: untie(%disk_env);
796: return undef;
797: }
798:
799: if (ref($userhashref) eq 'HASH') {
800: $userhashref->{'name'} = $disk_env{'user.name'};
801: $userhashref->{'domain'} = $disk_env{'user.domain'};
802: if ($disk_env{'request.role'}) {
803: $userhashref->{'role'} = $disk_env{'request.role'};
804: }
805: $userhashref->{'lti'} = $disk_env{'request.lti.login'};
806: if ($userhashref->{'lti'}) {
807: $userhashref->{'ltitarget'} = $disk_env{'request.lti.target'};
808: $userhashref->{'ltiuri'} = $disk_env{'request.lti.uri'};
809: }
810: }
811: untie(%disk_env);
812:
813: return $handle;
814: }
815:
816: sub timed_flock {
817: my ($file,$lock_type) = @_;
818: my $failed=0;
819: eval {
820: local $SIG{__DIE__}='DEFAULT';
821: local $SIG{ALRM}=sub {
822: $failed=1;
823: die("failed lock");
824: };
825: alarm(13);
826: flock($file,$lock_type);
827: alarm(0);
828: };
829: if ($failed) {
830: return undef;
831: } else {
832: return 1;
833: }
834: }
835:
836: sub get_sessionfile_vars {
837: my ($handle,$lonidsdir,$storearr) = @_;
838: my %returnhash;
839: unless (ref($storearr) eq 'ARRAY') {
840: return %returnhash;
841: }
842: if (-l "$lonidsdir/$handle.id") {
843: my $link = readlink("$lonidsdir/$handle.id");
844: if ((-e $link) && ($link =~ m{^\Q$lonidsdir\E/(.+)\.id$})) {
845: $handle = $1;
846: }
847: }
848: if ((-e "$lonidsdir/$handle.id") &&
849: ($handle =~ /^($match_username)\_\d+\_($match_domain)\_(.+)$/)) {
850: my ($possuname,$possudom,$possuhome) = ($1,$2,$3);
851: if ((&domain($possudom) ne '') && (&homeserver($possuname,$possudom) eq $possuhome)) {
852: if (open(my $idf,'+<',"$lonidsdir/$handle.id")) {
853: flock($idf,LOCK_SH);
854: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",
855: &GDBM_READER(),0640)) {
856: foreach my $item (@{$storearr}) {
857: $returnhash{$item} = $disk_env{$item};
858: }
859: untie(%disk_env);
860: }
861: }
862: }
863: }
864: return %returnhash;
865: }
866:
867: # ---------------------------------------------------------- Append Environment
868:
869: sub appenv {
870: my ($newenv,$roles) = @_;
871: if (ref($newenv) eq 'HASH') {
872: foreach my $key (keys(%{$newenv})) {
873: my $refused = 0;
874: if (($key =~ /^user\.role/) || ($key =~ /^user\.priv/)) {
875: $refused = 1;
876: if (ref($roles) eq 'ARRAY') {
877: my ($type,$role) = ($key =~ m{^user\.(role|priv)\.(.+?)\./});
878: if (grep(/^\Q$role\E$/,@{$roles})) {
879: $refused = 0;
880: }
881: }
882: }
883: if ($refused) {
884: &logthis("<font color=\"blue\">WARNING: ".
885: "Attempt to modify environment ".$key." to ".$newenv->{$key}
886: .'</font>');
887: delete($newenv->{$key});
888: } else {
889: $env{$key}=$newenv->{$key};
890: }
891: }
892: my $lonids = $perlvar{'lonIDsDir'};
893: if ($env{'user.environment'} =~ m{^\Q$lonids/\E$match_username\_\d+\_$match_domain\_[\w\-.]+\.id$}) {
894: my $opened = open(my $env_file,'+<',$env{'user.environment'});
895: if ($opened
896: && &timed_flock($env_file,LOCK_EX)
897: &&
898: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
899: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
900: while (my ($key,$value) = each(%{$newenv})) {
901: $disk_env{$key} = $value;
902: }
903: untie(%disk_env);
904: }
905: }
906: }
907: return 'ok';
908: }
909: # ----------------------------------------------------- Delete from Environment
910:
911: sub delenv {
912: my ($delthis,$regexp,$roles) = @_;
913: if (($delthis=~/^user\.role/) || ($delthis=~/^user\.priv/)) {
914: my $refused = 1;
915: if (ref($roles) eq 'ARRAY') {
916: my ($type,$role) = ($delthis =~ /^user\.(role|priv)\.([^.]+)\./);
917: if (grep(/^\Q$role\E$/,@{$roles})) {
918: $refused = 0;
919: }
920: }
921: if ($refused) {
922: &logthis("<font color=\"blue\">WARNING: ".
923: "Attempt to delete from environment ".$delthis);
924: return 'error';
925: }
926: }
927: my $opened = open(my $env_file,'+<',$env{'user.environment'});
928: if ($opened
929: && &timed_flock($env_file,LOCK_EX)
930: &&
931: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
932: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
933: foreach my $key (keys(%disk_env)) {
934: if ($regexp) {
935: if ($key=~/^$delthis/) {
936: delete($env{$key});
937: delete($disk_env{$key});
938: }
939: } else {
940: if ($key=~/^\Q$delthis\E/) {
941: delete($env{$key});
942: delete($disk_env{$key});
943: }
944: }
945: }
946: untie(%disk_env);
947: }
948: return 'ok';
949: }
950:
951: sub get_env_multiple {
952: my ($name) = @_;
953: my @values;
954: if (defined($env{$name})) {
955: # exists is it an array
956: if (ref($env{$name})) {
957: @values=@{ $env{$name} };
958: } else {
959: $values[0]=$env{$name};
960: }
961: }
962: return(@values);
963: }
964:
965: # ------------------------------------------------------------------- Locking
966:
967: sub set_lock {
968: my ($text)=@_;
969: $locknum++;
970: my $id=$$.'-'.$locknum;
971: &appenv({'session.locks' => $env{'session.locks'}.','.$id,
972: 'session.lock.'.$id => $text});
973: return $id;
974: }
975:
976: sub get_locks {
977: my $num=0;
978: my %texts=();
979: foreach my $lock (split(/\,/,$env{'session.locks'})) {
980: if ($lock=~/\w/) {
981: $num++;
982: $texts{$lock}=$env{'session.lock.'.$lock};
983: }
984: }
985: return ($num,%texts);
986: }
987:
988: sub remove_lock {
989: my ($id)=@_;
990: my $newlocks='';
991: foreach my $lock (split(/\,/,$env{'session.locks'})) {
992: if (($lock=~/\w/) && ($lock ne $id)) {
993: $newlocks.=','.$lock;
994: }
995: }
996: &appenv({'session.locks' => $newlocks});
997: &delenv('session.lock.'.$id);
998: }
999:
1000: sub remove_all_locks {
1001: my $activelocks=$env{'session.locks'};
1002: foreach my $lock (split(/\,/,$env{'session.locks'})) {
1003: if ($lock=~/\w/) {
1004: &remove_lock($lock);
1005: }
1006: }
1007: }
1008:
1009:
1010: # ------------------------------------------ Find out current server userload
1011: sub userload {
1012: my $numusers=0;
1013: {
1014: opendir(LONIDS,$perlvar{'lonIDsDir'});
1015: my $filename;
1016: my $curtime=time;
1017: while ($filename=readdir(LONIDS)) {
1018: next if ($filename eq '.' || $filename eq '..');
1019: next if ($filename =~ /publicuser_\d+\.id/);
1020: next if ($filename =~ /^[a-f0-9]+_linked\.id$/);
1021: my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9];
1022: if ($curtime-$mtime < 1800) { $numusers++; }
1023: }
1024: closedir(LONIDS);
1025: }
1026: my $userloadpercent=0;
1027: my $maxuserload=$perlvar{'lonUserLoadLim'};
1028: if ($maxuserload) {
1029: $userloadpercent=100*$numusers/$maxuserload;
1030: }
1031: $userloadpercent=sprintf("%.2f",$userloadpercent);
1032: return $userloadpercent;
1033: }
1034:
1035: # ------------------------------ Find server with least workload from spare.tab
1036:
1037: sub spareserver {
1038: my ($r,$loadpercent,$userloadpercent,$want_server_name,$udom) = @_;
1039: my $spare_server;
1040: if ($userloadpercent !~ /\d/) { $userloadpercent=0; }
1041: my $lowest_load=($loadpercent > $userloadpercent) ? $loadpercent
1042: : $userloadpercent;
1043: my ($uint_dom,$remotesessions);
1044: if (($udom ne '') && (&domain($udom) ne '')) {
1045: my $uprimary_id = &domain($udom,'primary');
1046: $uint_dom = &internet_dom($uprimary_id);
1047: my %udomdefaults = &get_domain_defaults($udom);
1048: $remotesessions = $udomdefaults{'remotesessions'};
1049: }
1050: my $spareshash = &this_host_spares($udom);
1051: if (ref($spareshash) eq 'HASH') {
1052: if (ref($spareshash->{'primary'}) eq 'ARRAY') {
1053: foreach my $try_server (@{ $spareshash->{'primary'} }) {
1054: next unless (&spare_can_host($udom,$uint_dom,$remotesessions,
1055: $try_server));
1056: ($spare_server, $lowest_load) =
1057: &compare_server_load($try_server, $spare_server, $lowest_load);
1058: }
1059: }
1060:
1061: my $found_server = ($spare_server ne '' && $lowest_load < 100);
1062:
1063: if (!$found_server) {
1064: if (ref($spareshash->{'default'}) eq 'ARRAY') {
1065: foreach my $try_server (@{ $spareshash->{'default'} }) {
1066: next unless (&spare_can_host($udom,$uint_dom,
1067: $remotesessions,$try_server));
1068: ($spare_server, $lowest_load) =
1069: &compare_server_load($try_server, $spare_server, $lowest_load);
1070: }
1071: }
1072: }
1073: }
1074:
1075: if (!$want_server_name) {
1076: if (defined($spare_server)) {
1077: my $hostname = &hostname($spare_server);
1078: if (defined($hostname)) {
1079: my $protocol = 'http';
1080: if ($protocol{$spare_server} eq 'https') {
1081: $protocol = $protocol{$spare_server};
1082: }
1083: my $alias = &use_proxy_alias($r,$spare_server);
1084: $hostname = $alias if ($alias ne '');
1085: $spare_server = $protocol.'://'.$hostname;
1086: }
1087: }
1088: }
1089: return $spare_server;
1090: }
1091:
1092: sub compare_server_load {
1093: my ($try_server, $spare_server, $lowest_load, $required) = @_;
1094:
1095: if ($required) {
1096: my ($reqdmajor,$reqdminor) = ($required =~ /^(\d+)\.(\d+)$/);
1097: my $remoterev = &get_server_loncaparev(undef,$try_server);
1098: my ($major,$minor) = ($remoterev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?$/);
1099: if (($major eq '' && $minor eq '') ||
1100: (($reqdmajor > $major) || (($reqdmajor == $major) && ($reqdminor > $minor)))) {
1101: return ($spare_server,$lowest_load);
1102: }
1103: }
1104:
1105: my $loadans = &reply('load', $try_server);
1106: my $userloadans = &reply('userload',$try_server);
1107:
1108: if ($loadans !~ /\d/ && $userloadans !~ /\d/) {
1109: return ($spare_server, $lowest_load); #didn't get a number from the server
1110: }
1111:
1112: my $load;
1113: if ($loadans =~ /\d/) {
1114: if ($userloadans =~ /\d/) {
1115: #both are numbers, pick the bigger one
1116: $load = ($loadans > $userloadans) ? $loadans
1117: : $userloadans;
1118: } else {
1119: $load = $loadans;
1120: }
1121: } else {
1122: $load = $userloadans;
1123: }
1124:
1125: if (($load =~ /\d/) && ($load < $lowest_load)) {
1126: $spare_server = $try_server;
1127: $lowest_load = $load;
1128: }
1129: return ($spare_server,$lowest_load);
1130: }
1131:
1132: # --------------------------- ask offload servers if user already has a session
1133: sub find_existing_session {
1134: my ($udom,$uname) = @_;
1135: my $spareshash = &this_host_spares($udom);
1136: if (ref($spareshash) eq 'HASH') {
1137: if (ref($spareshash->{'primary'}) eq 'ARRAY') {
1138: foreach my $try_server (@{ $spareshash->{'primary'} }) {
1139: return $try_server if (&has_user_session($try_server, $udom, $uname));
1140: }
1141: }
1142: if (ref($spareshash->{'default'}) eq 'ARRAY') {
1143: foreach my $try_server (@{ $spareshash->{'default'} }) {
1144: return $try_server if (&has_user_session($try_server, $udom, $uname));
1145: }
1146: }
1147: }
1148: return;
1149: }
1150:
1151: sub delusersession {
1152: my ($lonid,$udom,$uname) = @_;
1153: my $uprimary_id = &domain($udom,'primary');
1154: my $uintdom = &internet_dom($uprimary_id);
1155: my $intdom = &internet_dom($lonid);
1156: my $serverhomedom = &host_domain($lonid);
1157: if (($uintdom ne '') && ($uintdom eq $intdom)) {
1158: return &reply(join(':','delusersession',
1159: map {&escape($_)} ($udom,$uname)),$lonid);
1160: }
1161: return;
1162: }
1163:
1164: # check if user's browser sent load balancer cookie and server still has session
1165: # and is not overloaded.
1166: sub check_for_balancer_cookie {
1167: my ($r,$update_mtime) = @_;
1168: my ($otherserver,$cookie);
1169: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
1170: if (exists($cookies{'balanceID'})) {
1171: my $balid = $cookies{'balanceID'};
1172: $cookie=&LONCAPA::clean_handle($balid->value);
1173: my $balancedir=$r->dir_config('lonBalanceDir');
1174: if ((-d $balancedir) && (-e "$balancedir/$cookie.id")) {
1175: if ($cookie =~ /^($match_domain)_($match_username)_[a-f0-9]+$/) {
1176: my ($possudom,$possuname) = ($1,$2);
1177: my $has_session = 0;
1178: if ((&domain($possudom) ne '') &&
1179: (&homeserver($possuname,$possudom) ne 'no_host')) {
1180: my $try_server;
1181: my $opened = open(my $idf,'+<',"$balancedir/$cookie.id");
1182: if ($opened) {
1183: flock($idf,LOCK_SH);
1184: while (my $line = <$idf>) {
1185: chomp($line);
1186: if (&hostname($line) ne '') {
1187: $try_server = $line;
1188: last;
1189: }
1190: }
1191: close($idf);
1192: if (($try_server) &&
1193: (&has_user_session($try_server,$possudom,$possuname))) {
1194: my $lowest_load = 30000;
1195: ($otherserver,$lowest_load) =
1196: &compare_server_load($try_server,undef,$lowest_load);
1197: if ($otherserver ne '' && $lowest_load < 100) {
1198: $has_session = 1;
1199: } else {
1200: undef($otherserver);
1201: }
1202: }
1203: }
1204: }
1205: if ($has_session) {
1206: if ($update_mtime) {
1207: my $atime = my $mtime = time;
1208: utime($atime,$mtime,"$balancedir/$cookie.id");
1209: }
1210: } else {
1211: unlink("$balancedir/$cookie.id");
1212: }
1213: }
1214: }
1215: }
1216: return ($otherserver,$cookie);
1217: }
1218:
1219: sub updatebalcookie {
1220: my ($cookie,$balancer,$lastentry)=@_;
1221: if ($cookie =~ /^($match_domain)\_($match_username)\_[a-f0-9]{32}$/) {
1222: my ($udom,$uname) = ($1,$2);
1223: my $uprimary_id = &domain($udom,'primary');
1224: my $uintdom = &internet_dom($uprimary_id);
1225: my $intdom = &internet_dom($balancer);
1226: my $serverhomedom = &host_domain($balancer);
1227: if (($uintdom ne '') && ($uintdom eq $intdom)) {
1228: return &reply('updatebalcookie:'.&escape($cookie).':'.&escape($lastentry),$balancer);
1229: }
1230: }
1231: return;
1232: }
1233:
1234: sub delbalcookie {
1235: my ($cookie,$balancer) =@_;
1236: if ($cookie =~ /^($match_domain)\_($match_username)\_[a-f0-9]{32}$/) {
1237: my ($udom,$uname) = ($1,$2);
1238: my $uprimary_id = &domain($udom,'primary');
1239: my $uintdom = &internet_dom($uprimary_id);
1240: my $intdom = &internet_dom($balancer);
1241: my $serverhomedom = &host_domain($balancer);
1242: if (($uintdom ne '') && ($uintdom eq $intdom)) {
1243: return &reply('delbalcookie:'.&escape($cookie),$balancer);
1244: }
1245: }
1246: }
1247:
1248: # -------------------------------- ask if server already has a session for user
1249: sub has_user_session {
1250: my ($lonid,$udom,$uname) = @_;
1251: my $result = &reply(join(':','userhassession',
1252: map {&escape($_)} ($udom,$uname)),$lonid);
1253: return 1 if ($result eq 'ok');
1254:
1255: return 0;
1256: }
1257:
1258: # --------- determine least loaded server in a user's domain which allows login
1259:
1260: sub choose_server {
1261: my ($udom,$checkloginvia,$required,$skiploadbal) = @_;
1262: my %domconfhash = &Apache::loncommon::get_domainconf($udom);
1263: my %servers = &get_servers($udom);
1264: my $lowest_load = 30000;
1265: my ($login_host,$hostname,$portal_path,$isredirect,$balancers);
1266: if ($skiploadbal) {
1267: ($balancers,my $cached)=&is_cached_new('loadbalancing',$udom);
1268: unless (defined($cached)) {
1269: my $cachetime = 60*60*24;
1270: my %domconfig =
1271: &get_dom('configuration',['loadbalancing'],$udom);
1272: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1273: $balancers = &do_cache_new('loadbalancing',$udom,$domconfig{'loadbalancing'},
1274: $cachetime);
1275: }
1276: }
1277: }
1278: foreach my $lonhost (keys(%servers)) {
1279: if ($skiploadbal) {
1280: if (ref($balancers) eq 'HASH') {
1281: next if (exists($balancers->{$lonhost}));
1282: }
1283: }
1284: my $loginvia;
1285: if ($checkloginvia) {
1286: $loginvia = $domconfhash{$udom.'.login.loginvia_'.$lonhost};
1287: if ($loginvia) {
1288: my ($server,$path) = split(/:/,$loginvia);
1289: ($login_host, $lowest_load) =
1290: &compare_server_load($server, $login_host, $lowest_load, $required);
1291: if ($login_host eq $server) {
1292: $portal_path = $path;
1293: $isredirect = 1;
1294: }
1295: } else {
1296: ($login_host, $lowest_load) =
1297: &compare_server_load($lonhost, $login_host, $lowest_load, $required);
1298: if ($login_host eq $lonhost) {
1299: $portal_path = '';
1300: $isredirect = '';
1301: }
1302: }
1303: } else {
1304: ($login_host, $lowest_load) =
1305: &compare_server_load($lonhost, $login_host, $lowest_load, $required);
1306: }
1307: }
1308: if ($login_host ne '') {
1309: $hostname = &hostname($login_host);
1310: }
1311: return ($login_host,$hostname,$portal_path,$isredirect,$lowest_load);
1312: }
1313:
1314: sub get_course_sessions {
1315: my ($cnum,$cdom,$lastactivity) = @_;
1316: my %servers = &internet_dom_servers($cdom);
1317: my %returnhash;
1318: foreach my $server (sort(keys(%servers))) {
1319: my $rep = &reply("coursesessions:$cdom:$cnum:$lastactivity",$server);
1320: my @pairs=split(/\&/,$rep);
1321: unless (($rep eq 'unknown_cmd') || ($rep =~ /^error/)) {
1322: foreach my $item (@pairs) {
1323: my ($key,$value)=split(/=/,$item,2);
1324: $key = &unescape($key);
1325: next if ($key =~ /^error: 2 /);
1326: if (exists($returnhash{$key})) {
1327: next if ($value < $returnhash{$key});
1328: }
1329: $returnhash{$key}=$value;
1330: }
1331: }
1332: }
1333: return %returnhash;
1334: }
1335:
1336: # --------------------------------------------- Try to change a user's password
1337:
1338: sub changepass {
1339: my ($uname,$udom,$currentpass,$newpass,$server,$context)=@_;
1340: $currentpass = &escape($currentpass);
1341: $newpass = &escape($newpass);
1342: my $lonhost = $perlvar{'lonHostID'};
1343: my $answer = reply("encrypt:passwd:$udom:$uname:$currentpass:$newpass:$context:$lonhost",
1344: $server);
1345: if (! $answer) {
1346: &logthis("No reply on password change request to $server ".
1347: "by $uname in domain $udom.");
1348: } elsif ($answer =~ "^ok") {
1349: &logthis("$uname in $udom successfully changed their password ".
1350: "on $server.");
1351: } elsif ($answer =~ "^pwchange_failure") {
1352: &logthis("$uname in $udom was unable to change their password ".
1353: "on $server. The action was blocked by either lcpasswd ".
1354: "or pwchange");
1355: } elsif ($answer =~ "^non_authorized") {
1356: &logthis("$uname in $udom did not get their password correct when ".
1357: "attempting to change it on $server.");
1358: } elsif ($answer =~ "^auth_mode_error") {
1359: &logthis("$uname in $udom attempted to change their password despite ".
1360: "not being locally or internally authenticated on $server.");
1361: } elsif ($answer =~ "^unknown_user") {
1362: &logthis("$uname in $udom attempted to change their password ".
1363: "on $server but were unable to because $server is not ".
1364: "their home server.");
1365: } elsif ($answer =~ "^refused") {
1366: &logthis("$server refused to change $uname in $udom password because ".
1367: "it was sent an unencrypted request to change the password.");
1368: } elsif ($answer =~ "invalid_client") {
1369: &logthis("$server refused to change $uname in $udom password because ".
1370: "it was a reset by e-mail originating from an invalid server.");
1371: } elsif ($answer =~ "^prioruse") {
1372: &logthis("$server refused to change $uname in $udom password because ".
1373: "the password had been used before");
1374: }
1375: return $answer;
1376: }
1377:
1378: # ----------------------- Try to determine user's current authentication scheme
1379:
1380: sub queryauthenticate {
1381: my ($uname,$udom)=@_;
1382: my $uhome=&homeserver($uname,$udom);
1383: if ((!$uhome) || ($uhome eq 'no_host')) {
1384: &logthis("User $uname at $udom is unknown when looking for authentication mechanism");
1385: return 'no_host';
1386: }
1387: my $answer=reply("encrypt:currentauth:$udom:$uname",$uhome);
1388: if ($answer =~ /^(unknown_user|refused|con_lost)/) {
1389: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1390: }
1391: return $answer;
1392: }
1393:
1394: # --------- Try to authenticate user from domain's lib servers (first this one)
1395:
1396: sub authenticate {
1397: my ($uname,$upass,$udom,$checkdefauth,$clientcancheckhost)=@_;
1398: $upass=&escape($upass);
1399: $uname= &LONCAPA::clean_username($uname);
1400: my $uhome=&homeserver($uname,$udom,1);
1401: my $newhome;
1402: if ((!$uhome) || ($uhome eq 'no_host')) {
1403: # Maybe the machine was offline and only re-appeared again recently?
1404: &reconlonc();
1405: # One more
1406: $uhome=&homeserver($uname,$udom,1);
1407: if (($uhome eq 'no_host') && $checkdefauth) {
1408: if (defined(&domain($udom,'primary'))) {
1409: $newhome=&domain($udom,'primary');
1410: }
1411: if ($newhome ne '') {
1412: $uhome = $newhome;
1413: }
1414: }
1415: if ((!$uhome) || ($uhome eq 'no_host')) {
1416: &logthis("User $uname at $udom is unknown in authenticate");
1417: return 'no_host';
1418: }
1419: }
1420: my $answer=reply("encrypt:auth:$udom:$uname:$upass:$checkdefauth:$clientcancheckhost",$uhome);
1421: if ($answer eq 'authorized') {
1422: if ($newhome) {
1423: &logthis("User $uname at $udom authorized by $uhome, but needs account");
1424: return 'no_account_on_host';
1425: } else {
1426: &logthis("User $uname at $udom authorized by $uhome");
1427: return $uhome;
1428: }
1429: }
1430: if ($answer eq 'non_authorized') {
1431: &logthis("User $uname at $udom rejected by $uhome");
1432: return 'no_host';
1433: }
1434: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1435: return 'no_host';
1436: }
1437:
1438: sub can_switchserver {
1439: my ($udom,$home) = @_;
1440: my ($canswitch,@intdoms);
1441: my $internet_names = &get_internet_names($home);
1442: if (ref($internet_names) eq 'ARRAY') {
1443: @intdoms = @{$internet_names};
1444: }
1445: my $uint_dom = &internet_dom(&domain($udom,'primary'));
1446: if ($uint_dom ne '' && grep(/^\Q$uint_dom\E$/,@intdoms)) {
1447: $canswitch = 1;
1448: } else {
1449: my $serverhomeID = &get_server_homeID(&hostname($home));
1450: my $serverhomedom = &host_domain($serverhomeID);
1451: my %defdomdefaults = &get_domain_defaults($serverhomedom);
1452: my %udomdefaults = &get_domain_defaults($udom);
1453: my $remoterev = &get_server_loncaparev('',$home);
1454: $canswitch = &can_host_session($udom,$home,$remoterev,
1455: $udomdefaults{'remotesessions'},
1456: $defdomdefaults{'hostedsessions'});
1457: }
1458: return $canswitch;
1459: }
1460:
1461: sub can_host_session {
1462: my ($udom,$lonhost,$remoterev,$remotesessions,$hostedsessions) = @_;
1463: my $canhost = 1;
1464: my $host_idn = &internet_dom($lonhost);
1465: if (ref($remotesessions) eq 'HASH') {
1466: if (ref($remotesessions->{'excludedomain'}) eq 'ARRAY') {
1467: if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'excludedomain'}})) {
1468: $canhost = 0;
1469: } else {
1470: $canhost = 1;
1471: }
1472: }
1473: if (ref($remotesessions->{'includedomain'}) eq 'ARRAY') {
1474: if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'includedomain'}})) {
1475: $canhost = 1;
1476: } else {
1477: $canhost = 0;
1478: }
1479: }
1480: if ($canhost) {
1481: if ($remotesessions->{'version'} ne '') {
1482: my ($reqmajor,$reqminor) = ($remotesessions->{'version'} =~ /^(\d+)\.(\d+)$/);
1483: if ($reqmajor ne '' && $reqminor ne '') {
1484: if ($remoterev =~ /^\'?(\d+)\.(\d+)/) {
1485: my $major = $1;
1486: my $minor = $2;
1487: if (($major < $reqmajor ) ||
1488: (($major == $reqmajor) && ($minor < $reqminor))) {
1489: $canhost = 0;
1490: }
1491: } else {
1492: $canhost = 0;
1493: }
1494: }
1495: }
1496: }
1497: }
1498: if ($canhost) {
1499: if (ref($hostedsessions) eq 'HASH') {
1500: my $uprimary_id = &domain($udom,'primary');
1501: my $uint_dom = &internet_dom($uprimary_id);
1502: if (ref($hostedsessions->{'excludedomain'}) eq 'ARRAY') {
1503: if (($uint_dom ne '') &&
1504: (grep(/^\Q$uint_dom\E$/,@{$hostedsessions->{'excludedomain'}}))) {
1505: $canhost = 0;
1506: } else {
1507: $canhost = 1;
1508: }
1509: }
1510: if (ref($hostedsessions->{'includedomain'}) eq 'ARRAY') {
1511: if (($uint_dom ne '') &&
1512: (grep(/^\Q$uint_dom\E$/,@{$hostedsessions->{'includedomain'}}))) {
1513: $canhost = 1;
1514: } else {
1515: $canhost = 0;
1516: }
1517: }
1518: }
1519: }
1520: return $canhost;
1521: }
1522:
1523: sub spare_can_host {
1524: my ($udom,$uint_dom,$remotesessions,$try_server)=@_;
1525: my $canhost=1;
1526: my $try_server_hostname = &hostname($try_server);
1527: my $serverhomeID = &get_server_homeID($try_server_hostname);
1528: my $serverhomedom = &host_domain($serverhomeID);
1529: my %defdomdefaults = &get_domain_defaults($serverhomedom);
1530: if (ref($defdomdefaults{'offloadnow'}) eq 'HASH') {
1531: if ($defdomdefaults{'offloadnow'}{$try_server}) {
1532: $canhost = 0;
1533: }
1534: }
1535: if ($canhost) {
1536: if (ref($defdomdefaults{'offloadoth'}) eq 'HASH') {
1537: if ($defdomdefaults{'offloadoth'}{$try_server}) {
1538: unless (&shared_institution($udom,$try_server)) {
1539: $canhost = 0;
1540: }
1541: }
1542: }
1543: }
1544: if (($canhost) && ($uint_dom)) {
1545: my @intdoms;
1546: my $internet_names = &get_internet_names($try_server);
1547: if (ref($internet_names) eq 'ARRAY') {
1548: @intdoms = @{$internet_names};
1549: }
1550: unless (grep(/^\Q$uint_dom\E$/,@intdoms)) {
1551: my $remoterev = &get_server_loncaparev(undef,$try_server);
1552: $canhost = &can_host_session($udom,$try_server,$remoterev,
1553: $remotesessions,
1554: $defdomdefaults{'hostedsessions'});
1555: }
1556: }
1557: return $canhost;
1558: }
1559:
1560: sub this_host_spares {
1561: my ($dom) = @_;
1562: my ($dom_in_use,$lonhost_in_use,$result);
1563: my @hosts = ¤t_machine_ids();
1564: foreach my $lonhost (@hosts) {
1565: if (&host_domain($lonhost) eq $dom) {
1566: $dom_in_use = $dom;
1567: $lonhost_in_use = $lonhost;
1568: last;
1569: }
1570: }
1571: if ($dom_in_use ne '') {
1572: $result = &spares_for_offload($dom_in_use,$lonhost_in_use);
1573: }
1574: if (ref($result) ne 'HASH') {
1575: $lonhost_in_use = $perlvar{'lonHostID'};
1576: $dom_in_use = &host_domain($lonhost_in_use);
1577: $result = &spares_for_offload($dom_in_use,$lonhost_in_use);
1578: if (ref($result) ne 'HASH') {
1579: $result = \%spareid;
1580: }
1581: }
1582: return $result;
1583: }
1584:
1585: sub spares_for_offload {
1586: my ($dom_in_use,$lonhost_in_use) = @_;
1587: my ($result,$cached)=&is_cached_new('spares',$dom_in_use);
1588: if (defined($cached)) {
1589: return $result;
1590: } else {
1591: my $cachetime = 60*60*24;
1592: my %domconfig =
1593: &get_dom('configuration',['usersessions'],$dom_in_use);
1594: if (ref($domconfig{'usersessions'}) eq 'HASH') {
1595: if (ref($domconfig{'usersessions'}{'spares'}) eq 'HASH') {
1596: if (ref($domconfig{'usersessions'}{'spares'}{$lonhost_in_use}) eq 'HASH') {
1597: return &do_cache_new('spares',$dom_in_use,$domconfig{'usersessions'}{'spares'}{$lonhost_in_use},$cachetime);
1598: }
1599: }
1600: }
1601: }
1602: return;
1603: }
1604:
1605: sub get_lonbalancer_config {
1606: my ($servers) = @_;
1607: my ($currbalancer,$currtargets);
1608: if (ref($servers) eq 'HASH') {
1609: foreach my $server (keys(%{$servers})) {
1610: my %what = (
1611: spareid => 1,
1612: perlvar => 1,
1613: );
1614: my ($result,$returnhash) = &get_remote_globals($server,\%what);
1615: if ($result eq 'ok') {
1616: if (ref($returnhash) eq 'HASH') {
1617: if (ref($returnhash->{'perlvar'}) eq 'HASH') {
1618: if ($returnhash->{'perlvar'}->{'lonBalancer'} eq 'yes') {
1619: $currbalancer = $server;
1620: $currtargets = {};
1621: if (ref($returnhash->{'spareid'}) eq 'HASH') {
1622: if (ref($returnhash->{'spareid'}->{'primary'}) eq 'ARRAY') {
1623: $currtargets->{'primary'} = $returnhash->{'spareid'}->{'primary'};
1624: }
1625: if (ref($returnhash->{'spareid'}->{'default'}) eq 'ARRAY') {
1626: $currtargets->{'default'} = $returnhash->{'spareid'}->{'default'};
1627: }
1628: }
1629: last;
1630: }
1631: }
1632: }
1633: }
1634: }
1635: }
1636: return ($currbalancer,$currtargets);
1637: }
1638:
1639: sub check_loadbalancing {
1640: my ($uname,$udom,$caller) = @_;
1641: my ($is_balancer,$currtargets,$currrules,$dom_in_use,$homeintdom,
1642: $rule_in_effect,$offloadto,$otherserver,$setcookie,$dom_balancers);
1643: my $lonhost = $perlvar{'lonHostID'};
1644: my @hosts = ¤t_machine_ids();
1645: my $uprimary_id = &domain($udom,'primary');
1646: my $uintdom = &internet_dom($uprimary_id);
1647: my $intdom = &internet_dom($lonhost);
1648: my $serverhomedom = &host_domain($lonhost);
1649: my $domneedscache;
1650: my $cachetime = 60*60*24;
1651:
1652: if (($uintdom ne '') && ($uintdom eq $intdom)) {
1653: $dom_in_use = $udom;
1654: $homeintdom = 1;
1655: } else {
1656: $dom_in_use = $serverhomedom;
1657: }
1658: my ($result,$cached)=&is_cached_new('loadbalancing',$dom_in_use);
1659: unless (defined($cached)) {
1660: my %domconfig =
1661: &get_dom('configuration',['loadbalancing'],$dom_in_use);
1662: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1663: $result = &do_cache_new('loadbalancing',$dom_in_use,$domconfig{'loadbalancing'},$cachetime);
1664: } else {
1665: $domneedscache = $dom_in_use;
1666: }
1667: }
1668: if (ref($result) eq 'HASH') {
1669: ($is_balancer,$currtargets,$currrules,$setcookie,$dom_balancers) =
1670: &check_balancer_result($result,@hosts);
1671: if ($is_balancer) {
1672: if (ref($currrules) eq 'HASH') {
1673: if ($homeintdom) {
1674: if ($uname ne '') {
1675: if (($currrules->{'_LC_adv'} ne '') || ($currrules->{'_LC_author'} ne '')) {
1676: my ($is_adv,$is_author) = &is_advanced_user($udom,$uname);
1677: if (($currrules->{'_LC_author'} ne '') && ($is_author)) {
1678: $rule_in_effect = $currrules->{'_LC_author'};
1679: } elsif (($currrules->{'_LC_adv'} ne '') && ($is_adv)) {
1680: $rule_in_effect = $currrules->{'_LC_adv'}
1681: }
1682: }
1683: if ($rule_in_effect eq '') {
1684: my %userenv = &userenvironment($udom,$uname,'inststatus');
1685: if ($userenv{'inststatus'} ne '') {
1686: my @statuses = map { &unescape($_); } split(/:/,$userenv{'inststatus'});
1687: my ($othertitle,$usertypes,$types) =
1688: &Apache::loncommon::sorted_inst_types($udom);
1689: if (ref($types) eq 'ARRAY') {
1690: foreach my $type (@{$types}) {
1691: if (grep(/^\Q$type\E$/,@statuses)) {
1692: if (exists($currrules->{$type})) {
1693: $rule_in_effect = $currrules->{$type};
1694: }
1695: }
1696: }
1697: }
1698: } else {
1699: if (exists($currrules->{'default'})) {
1700: $rule_in_effect = $currrules->{'default'};
1701: }
1702: }
1703: }
1704: } else {
1705: if (exists($currrules->{'default'})) {
1706: $rule_in_effect = $currrules->{'default'};
1707: }
1708: }
1709: } else {
1710: if ($currrules->{'_LC_external'} ne '') {
1711: $rule_in_effect = $currrules->{'_LC_external'};
1712: }
1713: }
1714: $offloadto = &get_loadbalancer_targets($rule_in_effect,$currtargets,
1715: $uname,$udom);
1716: }
1717: }
1718: } elsif (($homeintdom) && ($udom ne $serverhomedom)) {
1719: ($result,$cached)=&is_cached_new('loadbalancing',$serverhomedom);
1720: unless (defined($cached)) {
1721: my %domconfig =
1722: &get_dom('configuration',['loadbalancing'],$serverhomedom);
1723: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1724: $result = &do_cache_new('loadbalancing',$serverhomedom,$domconfig{'loadbalancing'},$cachetime);
1725: } else {
1726: $domneedscache = $serverhomedom;
1727: }
1728: }
1729: if (ref($result) eq 'HASH') {
1730: ($is_balancer,$currtargets,$currrules,$setcookie,$dom_balancers) =
1731: &check_balancer_result($result,@hosts);
1732: if ($is_balancer) {
1733: if (ref($currrules) eq 'HASH') {
1734: if ($currrules->{'_LC_internetdom'} ne '') {
1735: $rule_in_effect = $currrules->{'_LC_internetdom'};
1736: }
1737: }
1738: $offloadto = &get_loadbalancer_targets($rule_in_effect,$currtargets,
1739: $uname,$udom);
1740: }
1741: } else {
1742: if ($perlvar{'lonBalancer'} eq 'yes') {
1743: $is_balancer = 1;
1744: $offloadto = &this_host_spares($dom_in_use);
1745: }
1746: unless (defined($cached)) {
1747: $domneedscache = $serverhomedom;
1748: }
1749: }
1750: } else {
1751: if ($perlvar{'lonBalancer'} eq 'yes') {
1752: $is_balancer = 1;
1753: $offloadto = &this_host_spares($dom_in_use);
1754: }
1755: unless (defined($cached)) {
1756: $domneedscache = $serverhomedom;
1757: }
1758: }
1759: if ($domneedscache) {
1760: &do_cache_new('loadbalancing',$domneedscache,$is_balancer,$cachetime);
1761: }
1762: if (($is_balancer) && ($caller ne 'switchserver')) {
1763: my $lowest_load = 30000;
1764: if (ref($offloadto) eq 'HASH') {
1765: if (ref($offloadto->{'primary'}) eq 'ARRAY') {
1766: foreach my $try_server (@{$offloadto->{'primary'}}) {
1767: ($otherserver,$lowest_load) =
1768: &compare_server_load($try_server,$otherserver,$lowest_load);
1769: }
1770: }
1771: my $found_server = ($otherserver ne '' && $lowest_load < 100);
1772:
1773: if (!$found_server) {
1774: if (ref($offloadto->{'default'}) eq 'ARRAY') {
1775: foreach my $try_server (@{$offloadto->{'default'}}) {
1776: ($otherserver,$lowest_load) =
1777: &compare_server_load($try_server,$otherserver,$lowest_load);
1778: }
1779: }
1780: }
1781: } elsif (ref($offloadto) eq 'ARRAY') {
1782: if (@{$offloadto} == 1) {
1783: $otherserver = $offloadto->[0];
1784: } elsif (@{$offloadto} > 1) {
1785: foreach my $try_server (@{$offloadto}) {
1786: ($otherserver,$lowest_load) =
1787: &compare_server_load($try_server,$otherserver,$lowest_load);
1788: }
1789: }
1790: }
1791: unless ($caller eq 'login') {
1792: if (($otherserver ne '') && (grep(/^\Q$otherserver\E$/,@hosts))) {
1793: $is_balancer = 0;
1794: if ($uname ne '' && $udom ne '') {
1795: if (($env{'user.name'} eq $uname) && ($env{'user.domain'} eq $udom)) {
1796: &appenv({'user.loadbalexempt' => $lonhost,
1797: 'user.loadbalcheck.time' => time});
1798: }
1799: }
1800: }
1801: }
1802: }
1803: if (($is_balancer) && (!$homeintdom)) {
1804: undef($setcookie);
1805: }
1806: return ($is_balancer,$otherserver,$setcookie,$offloadto,$dom_balancers);
1807: }
1808:
1809: sub check_balancer_result {
1810: my ($result,@hosts) = @_;
1811: my ($is_balancer,$currtargets,$currrules,$setcookie,$dom_balancers);
1812: if (ref($result) eq 'HASH') {
1813: if ($result->{'lonhost'} ne '') {
1814: my $currbalancer = $result->{'lonhost'};
1815: if (grep(/^\Q$currbalancer\E$/,@hosts)) {
1816: $is_balancer = 1;
1817: $currtargets = $result->{'targets'};
1818: $currrules = $result->{'rules'};
1819: }
1820: $dom_balancers = $currbalancer;
1821: } else {
1822: if (keys(%{$result})) {
1823: foreach my $key (keys(%{$result})) {
1824: if (($key ne '') && (grep(/^\Q$key\E$/,@hosts)) &&
1825: (ref($result->{$key}) eq 'HASH')) {
1826: $is_balancer = 1;
1827: $currrules = $result->{$key}{'rules'};
1828: $currtargets = $result->{$key}{'targets'};
1829: $setcookie = $result->{$key}{'cookie'};
1830: last;
1831: }
1832: }
1833: $dom_balancers = join(',',sort(keys(%{$result})));
1834: }
1835: }
1836: }
1837: return ($is_balancer,$currtargets,$currrules,$setcookie,$dom_balancers);
1838: }
1839:
1840: sub get_loadbalancer_targets {
1841: my ($rule_in_effect,$currtargets,$uname,$udom) = @_;
1842: my $offloadto;
1843: if ($rule_in_effect eq 'none') {
1844: return [$perlvar{'lonHostID'}];
1845: } elsif ($rule_in_effect eq '') {
1846: $offloadto = $currtargets;
1847: } else {
1848: if ($rule_in_effect eq 'homeserver') {
1849: my $homeserver = &homeserver($uname,$udom);
1850: if ($homeserver ne 'no_host') {
1851: $offloadto = [$homeserver];
1852: }
1853: } elsif ($rule_in_effect eq 'externalbalancer') {
1854: my %domconfig =
1855: &get_dom('configuration',['loadbalancing'],$udom);
1856: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1857: if ($domconfig{'loadbalancing'}{'lonhost'} ne '') {
1858: if (&hostname($domconfig{'loadbalancing'}{'lonhost'}) ne '') {
1859: $offloadto = [$domconfig{'loadbalancing'}{'lonhost'}];
1860: }
1861: }
1862: } else {
1863: my %servers = &internet_dom_servers($udom);
1864: my ($remotebalancer,$remotetargets) = &get_lonbalancer_config(\%servers);
1865: if (&hostname($remotebalancer) ne '') {
1866: $offloadto = [$remotebalancer];
1867: }
1868: }
1869: } elsif (&hostname($rule_in_effect) ne '') {
1870: $offloadto = [$rule_in_effect];
1871: }
1872: }
1873: return $offloadto;
1874: }
1875:
1876: sub internet_dom_servers {
1877: my ($dom) = @_;
1878: my (%uniqservers,%servers);
1879: my $primaryserver = &hostname(&domain($dom,'primary'));
1880: my @machinedoms = &machine_domains($primaryserver);
1881: foreach my $mdom (@machinedoms) {
1882: my %currservers = %servers;
1883: my %server = &get_servers($mdom);
1884: %servers = (%currservers,%server);
1885: }
1886: my %by_hostname;
1887: foreach my $id (keys(%servers)) {
1888: push(@{$by_hostname{$servers{$id}}},$id);
1889: }
1890: foreach my $hostname (sort(keys(%by_hostname))) {
1891: if (@{$by_hostname{$hostname}} > 1) {
1892: my $match = 0;
1893: foreach my $id (@{$by_hostname{$hostname}}) {
1894: if (&host_domain($id) eq $dom) {
1895: $uniqservers{$id} = $hostname;
1896: $match = 1;
1897: }
1898: }
1899: unless ($match) {
1900: $uniqservers{$by_hostname{$hostname}[0]} = $hostname;
1901: }
1902: } else {
1903: $uniqservers{$by_hostname{$hostname}[0]} = $hostname;
1904: }
1905: }
1906: return %uniqservers;
1907: }
1908:
1909: sub trusted_domains {
1910: my ($cmdtype,$calldom) = @_;
1911: my ($trusted,$untrusted);
1912: if (&domain($calldom) eq '') {
1913: return ($trusted,$untrusted);
1914: }
1915: unless ($cmdtype =~ /^(content|shared|enroll|coaurem|othcoau|domroles|catalog|reqcrs|msg)$/) {
1916: return ($trusted,$untrusted);
1917: }
1918: my $callprimary = &domain($calldom,'primary');
1919: my $intcalldom = &internet_dom($callprimary);
1920: if ($intcalldom eq '') {
1921: return ($trusted,$untrusted);
1922: }
1923:
1924: my ($trustconfig,$cached)=&is_cached_new('trust',$calldom);
1925: unless (defined($cached)) {
1926: my %domconfig = &get_dom('configuration',['trust'],$calldom);
1927: &do_cache_new('trust',$calldom,$domconfig{'trust'},3600);
1928: $trustconfig = $domconfig{'trust'};
1929: }
1930: if (ref($trustconfig)) {
1931: my (%possexc,%possinc,@allexc,@allinc);
1932: if (ref($trustconfig->{$cmdtype}) eq 'HASH') {
1933: if (ref($trustconfig->{$cmdtype}->{'exc'}) eq 'ARRAY') {
1934: map { $possexc{$_} = 1; } @{$trustconfig->{$cmdtype}->{'exc'}};
1935: }
1936: if (ref($trustconfig->{$cmdtype}->{'inc'}) eq 'ARRAY') {
1937: $possinc{$intcalldom} = 1;
1938: map { $possinc{$_} = 1; } @{$trustconfig->{$cmdtype}->{'inc'}};
1939: }
1940: }
1941: if (keys(%possexc)) {
1942: if (keys(%possinc)) {
1943: foreach my $key (sort(keys(%possexc))) {
1944: next if ($key eq $intcalldom);
1945: unless ($possinc{$key}) {
1946: push(@allexc,$key);
1947: }
1948: }
1949: } else {
1950: @allexc = sort(keys(%possexc));
1951: }
1952: }
1953: if (keys(%possinc)) {
1954: $possinc{$intcalldom} = 1;
1955: @allinc = sort(keys(%possinc));
1956: }
1957: if ((@allexc > 0) || (@allinc > 0)) {
1958: my %doms_by_intdom;
1959: my %allintdoms = &all_host_intdom();
1960: my %alldoms = &all_host_domain();
1961: foreach my $key (%allintdoms) {
1962: if (ref($doms_by_intdom{$allintdoms{$key}}) eq 'ARRAY') {
1963: unless (grep(/^\Q$alldoms{$key}\E$/,@{$doms_by_intdom{$allintdoms{$key}}})) {
1964: push(@{$doms_by_intdom{$allintdoms{$key}}},$alldoms{$key});
1965: }
1966: } else {
1967: $doms_by_intdom{$allintdoms{$key}} = [$alldoms{$key}];
1968: }
1969: }
1970: foreach my $exc (@allexc) {
1971: if (ref($doms_by_intdom{$exc}) eq 'ARRAY') {
1972: push(@{$untrusted},@{$doms_by_intdom{$exc}});
1973: }
1974: }
1975: foreach my $inc (@allinc) {
1976: if (ref($doms_by_intdom{$inc}) eq 'ARRAY') {
1977: push(@{$trusted},@{$doms_by_intdom{$inc}});
1978: }
1979: }
1980: }
1981: }
1982: return ($trusted,$untrusted);
1983: }
1984:
1985: sub will_trust {
1986: my ($cmdtype,$domain,$possdom) = @_;
1987: return 1 if ($domain eq $possdom);
1988: my ($trustedref,$untrustedref) = &trusted_domains($cmdtype,$possdom);
1989: my $willtrust;
1990: if ((ref($trustedref) eq 'ARRAY') && (@{$trustedref} > 0)) {
1991: if (grep(/^\Q$domain\E$/,@{$trustedref})) {
1992: $willtrust = 1;
1993: }
1994: } elsif ((ref($untrustedref) eq 'ARRAY') && (@{$untrustedref} > 0)) {
1995: unless (grep(/^\Q$domain\E$/,@{$untrustedref})) {
1996: $willtrust = 1;
1997: }
1998: } else {
1999: $willtrust = 1;
2000: }
2001: return $willtrust;
2002: }
2003:
2004: # ---------------------- Find the homebase for a user from domain's lib servers
2005:
2006: my %homecache;
2007: sub homeserver {
2008: my ($uname,$udom,$ignoreBadCache)=@_;
2009: my $index="$uname:$udom";
2010:
2011: if (exists($homecache{$index})) { return $homecache{$index}; }
2012:
2013: my %servers = &get_servers($udom,'library');
2014: foreach my $tryserver (keys(%servers)) {
2015: next if ($ignoreBadCache ne 'true' &&
2016: exists($badServerCache{$tryserver}));
2017:
2018: my $answer=reply("home:$udom:$uname",$tryserver);
2019: if ($answer eq 'found') {
2020: delete($badServerCache{$tryserver});
2021: return $homecache{$index}=$tryserver;
2022: } elsif ($answer eq 'no_host') {
2023: $badServerCache{$tryserver}=1;
2024: }
2025: }
2026: return 'no_host';
2027: }
2028:
2029: # ----- Find the usernames behind a list of student/employee IDs or clicker IDs
2030:
2031: sub idget {
2032: my ($udom,$idsref,$namespace)=@_;
2033: my %returnhash=();
2034: my @ids=();
2035: if (ref($idsref) eq 'ARRAY') {
2036: @ids = @{$idsref};
2037: } else {
2038: return %returnhash;
2039: }
2040: if ($namespace eq '') {
2041: $namespace = 'ids';
2042: }
2043:
2044: my %servers = &get_servers($udom,'library');
2045: foreach my $tryserver (keys(%servers)) {
2046: my $idlist=join('&', map { &escape($_); } @ids);
2047: if ($namespace eq 'ids') {
2048: $idlist=~tr/A-Z/a-z/;
2049: }
2050: my $reply;
2051: if ($namespace eq 'ids') {
2052: $reply=&reply("idget:$udom:".$idlist,$tryserver);
2053: } else {
2054: $reply=&reply("getdom:$udom:$namespace:$idlist",$tryserver);
2055: }
2056: my @answer=();
2057: if (($reply ne 'con_lost') && ($reply!~/^error\:/)) {
2058: @answer=split(/\&/,$reply);
2059: } ;
2060: my $i;
2061: for ($i=0;$i<=$#ids;$i++) {
2062: if ($answer[$i]) {
2063: $returnhash{$ids[$i]}=&unescape($answer[$i]);
2064: }
2065: }
2066: }
2067: return %returnhash;
2068: }
2069:
2070: # ------------------------------------- Find the IDs behind a list of usernames
2071:
2072: sub idrget {
2073: my ($udom,@unames)=@_;
2074: my %returnhash=();
2075: foreach my $uname (@unames) {
2076: $returnhash{$uname}=(&userenvironment($udom,$uname,'id'))[1];
2077: }
2078: return %returnhash;
2079: }
2080:
2081: # Store away a list of names and associated student/employee IDs or clicker IDs
2082:
2083: sub idput {
2084: my ($udom,$idsref,$uhom,$namespace)=@_;
2085: my %servers=();
2086: my %ids=();
2087: my %byid = ();
2088: if (ref($idsref) eq 'HASH') {
2089: %ids=%{$idsref};
2090: }
2091: if ($namespace eq '') {
2092: $namespace = 'ids';
2093: }
2094: foreach my $uname (keys(%ids)) {
2095: &cput('environment',{'id'=>$ids{$uname}},$udom,$uname);
2096: if ($uhom eq '') {
2097: $uhom=&homeserver($uname,$udom);
2098: }
2099: if ($uhom ne 'no_host') {
2100: my $esc_unam=&escape($uname);
2101: if ($namespace eq 'ids') {
2102: my $id=&escape($ids{$uname});
2103: $id=~tr/A-Z/a-z/;
2104: my $esc_unam=&escape($uname);
2105: $servers{$uhom}.=$id.'='.$esc_unam.'&';
2106: } else {
2107: my @currids = split(/,/,$ids{$uname});
2108: foreach my $id (@currids) {
2109: $byid{$uhom}{$id} .= $uname.',';
2110: }
2111: }
2112: }
2113: }
2114: if ($namespace eq 'clickers') {
2115: foreach my $server (keys(%byid)) {
2116: if (ref($byid{$server}) eq 'HASH') {
2117: foreach my $id (keys(%{$byid{$server}})) {
2118: $byid{$server} =~ s/,$//;
2119: $servers{$uhom}.=&escape($id).'='.&escape($byid{$server}).'&';
2120: }
2121: }
2122: }
2123: }
2124: foreach my $server (keys(%servers)) {
2125: $servers{$server} =~ s/\&$//;
2126: if ($namespace eq 'ids') {
2127: &critical('idput:'.$udom.':'.$servers{$server},$server);
2128: } else {
2129: &critical('updateclickers:'.$udom.':add:'.$servers{$server},$server);
2130: }
2131: }
2132: }
2133:
2134: # ------------- Delete unwanted student/employee IDs or clicker IDs from domain
2135:
2136: sub iddel {
2137: my ($udom,$idshashref,$uhome,$namespace)=@_;
2138: my %result=();
2139: my %ids=();
2140: my %byid = ();
2141: if (ref($idshashref) eq 'HASH') {
2142: %ids=%{$idshashref};
2143: } else {
2144: return %result;
2145: }
2146: if ($namespace eq '') {
2147: $namespace = 'ids';
2148: }
2149: my %servers=();
2150: while (my ($id,$unamestr) = each(%ids)) {
2151: if ($namespace eq 'ids') {
2152: my $uhom = $uhome;
2153: if ($uhom eq '') {
2154: $uhom=&homeserver($unamestr,$udom);
2155: }
2156: if ($uhom ne 'no_host') {
2157: $servers{$uhom}.='&'.&escape($id);
2158: }
2159: } else {
2160: my @curritems = split(/,/,$ids{$id});
2161: foreach my $uname (@curritems) {
2162: my $uhom = $uhome;
2163: if ($uhom eq '') {
2164: $uhom=&homeserver($uname,$udom);
2165: }
2166: if ($uhom ne 'no_host') {
2167: $byid{$uhom}{$id} .= $uname.',';
2168: }
2169: }
2170: }
2171: }
2172: if ($namespace eq 'clickers') {
2173: foreach my $server (keys(%byid)) {
2174: if (ref($byid{$server}) eq 'HASH') {
2175: foreach my $id (keys(%{$byid{$server}})) {
2176: $byid{$server}{$id} =~ s/,$//;
2177: $servers{$server}.=&escape($id).'='.&escape($byid{$server}{$id}).'&';
2178: }
2179: }
2180: }
2181: }
2182: foreach my $server (keys(%servers)) {
2183: $servers{$server} =~ s/\&$//;
2184: if ($namespace eq 'ids') {
2185: $result{$server} = &critical('iddel:'.$udom.':'.$servers{$server},$uhome);
2186: } elsif ($namespace eq 'clickers') {
2187: $result{$server} = &critical('updateclickers:'.$udom.':del:'.$servers{$server},$server);
2188: }
2189: }
2190: return %result;
2191: }
2192:
2193: # ----- Update clicker ID-to-username look-ups in clickers.db on library server
2194:
2195: sub updateclickers {
2196: my ($udom,$action,$idshashref,$uhome,$critical) = @_;
2197: my %clickers;
2198: if (ref($idshashref) eq 'HASH') {
2199: %clickers=%{$idshashref};
2200: } else {
2201: return;
2202: }
2203: my $items='';
2204: foreach my $item (keys(%clickers)) {
2205: $items.=&escape($item).'='.&escape($clickers{$item}).'&';
2206: }
2207: $items=~s/\&$//;
2208: my $request = "updateclickers:$udom:$action:$items";
2209: if ($critical) {
2210: return &critical($request,$uhome);
2211: } else {
2212: return &reply($request,$uhome);
2213: }
2214: }
2215:
2216: # ------------------------------dump from db file owned by domainconfig user
2217: sub dump_dom {
2218: my ($namespace, $udom, $regexp) = @_;
2219:
2220: $udom ||= $env{'user.domain'};
2221:
2222: return () unless $udom;
2223:
2224: return &dump($namespace, $udom, &get_domainconfiguser($udom), $regexp);
2225: }
2226:
2227: # ------------------------------------------ get items from domain db files
2228:
2229: sub get_dom {
2230: my ($namespace,$storearr,$udom,$uhome,$encrypt)=@_;
2231: return if ($udom eq 'public');
2232: my $items='';
2233: foreach my $item (@$storearr) {
2234: $items.=&escape($item).'&';
2235: }
2236: $items=~s/\&$//;
2237: if (!$udom) {
2238: $udom=$env{'user.domain'};
2239: return if ($udom eq 'public');
2240: if (defined(&domain($udom,'primary'))) {
2241: $uhome=&domain($udom,'primary');
2242: } else {
2243: undef($uhome);
2244: }
2245: } else {
2246: if (!$uhome) {
2247: if (defined(&domain($udom,'primary'))) {
2248: $uhome=&domain($udom,'primary');
2249: }
2250: }
2251: }
2252: if ($udom && $uhome && ($uhome ne 'no_host')) {
2253: my $rep;
2254: if (grep { $_ eq $uhome } ¤t_machine_ids()) {
2255: # domain information is hosted on this machine
2256: $rep = &LONCAPA::Lond::get_dom("getdom:$udom:$namespace:$items");
2257: } else {
2258: if ($encrypt) {
2259: $rep=&reply("encrypt:egetdom:$udom:$namespace:$items",$uhome);
2260: } else {
2261: $rep=&reply("getdom:$udom:$namespace:$items",$uhome);
2262: }
2263: }
2264: my %returnhash;
2265: if ($rep eq '' || $rep =~ /^error: 2 /) {
2266: return %returnhash;
2267: }
2268: my @pairs=split(/\&/,$rep);
2269: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
2270: return @pairs;
2271: }
2272: my $i=0;
2273: foreach my $item (@$storearr) {
2274: $returnhash{$item}=&thaw_unescape($pairs[$i]);
2275: $i++;
2276: }
2277: return %returnhash;
2278: } else {
2279: &logthis("get_dom failed - no homeserver and/or domain ($udom) ($uhome)");
2280: }
2281: }
2282:
2283: # -------------------------------------------- put items in domain db files
2284:
2285: sub put_dom {
2286: my ($namespace,$storehash,$udom,$uhome,$encrypt)=@_;
2287: if (!$udom) {
2288: $udom=$env{'user.domain'};
2289: if (defined(&domain($udom,'primary'))) {
2290: $uhome=&domain($udom,'primary');
2291: } else {
2292: undef($uhome);
2293: }
2294: } else {
2295: if (!$uhome) {
2296: if (defined(&domain($udom,'primary'))) {
2297: $uhome=&domain($udom,'primary');
2298: }
2299: }
2300: }
2301: if ($udom && $uhome && ($uhome ne 'no_host')) {
2302: my $items='';
2303: foreach my $item (keys(%$storehash)) {
2304: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
2305: }
2306: $items=~s/\&$//;
2307: if ($encrypt) {
2308: return &reply("encrypt:putdom:$udom:$namespace:$items",$uhome);
2309: } else {
2310: return &reply("putdom:$udom:$namespace:$items",$uhome);
2311: }
2312: } else {
2313: &logthis("put_dom failed - no homeserver and/or domain");
2314: }
2315: }
2316:
2317: # --------------------- newput for items in db file owned by domainconfig user
2318: sub newput_dom {
2319: my ($namespace,$storehash,$udom) = @_;
2320: my $result;
2321: if (!$udom) {
2322: $udom=$env{'user.domain'};
2323: }
2324: if ($udom) {
2325: my $uname = &get_domainconfiguser($udom);
2326: $result = &newput($namespace,$storehash,$udom,$uname);
2327: }
2328: return $result;
2329: }
2330:
2331: # --------------------- delete for items in db file owned by domainconfig user
2332: sub del_dom {
2333: my ($namespace,$storearr,$udom)=@_;
2334: if (ref($storearr) eq 'ARRAY') {
2335: if (!$udom) {
2336: $udom=$env{'user.domain'};
2337: }
2338: if ($udom) {
2339: my $uname = &get_domainconfiguser($udom);
2340: return &del($namespace,$storearr,$udom,$uname);
2341: }
2342: }
2343: }
2344:
2345: sub store_dom {
2346: my ($storehash,$id,$namespace,$dom,$home,$encrypt) = @_;
2347: $$storehash{'ip'}=&get_requestor_ip();
2348: $$storehash{'host'}=$perlvar{'lonHostID'};
2349: my $namevalue='';
2350: foreach my $key (keys(%{$storehash})) {
2351: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
2352: }
2353: $namevalue=~s/\&$//;
2354: if (grep { $_ eq $home } current_machine_ids()) {
2355: return LONCAPA::Lond::store_dom("storedom:$dom:$namespace:$id:$namevalue");
2356: } else {
2357: if ($namespace eq 'private') {
2358: return 'refused';
2359: } elsif ($encrypt) {
2360: return reply("encrypt:storedom:$dom:$namespace:$id:$namevalue",$home);
2361: } else {
2362: return reply("storedom:$dom:$namespace:$id:$namevalue",$home);
2363: }
2364: }
2365: }
2366:
2367: sub restore_dom {
2368: my ($id,$namespace,$dom,$home,$encrypt) = @_;
2369: my $answer;
2370: if (grep { $_ eq $home } current_machine_ids()) {
2371: $answer = LONCAPA::Lond::restore_dom("restoredom:$dom:$namespace:$id");
2372: } elsif ($namespace ne 'private') {
2373: if ($encrypt) {
2374: $answer=&reply("encrypt:restoredom:$dom:$namespace:$id",$home);
2375: } else {
2376: $answer=&reply("restoredom:$dom:$namespace:$id",$home);
2377: }
2378: }
2379: my %returnhash=();
2380: unless (($answer eq '') || ($answer eq 'con_lost') || ($answer eq 'refused') ||
2381: ($answer eq 'unknown_cmd') || ($answer eq 'rejected')) {
2382: foreach my $line (split(/\&/,$answer)) {
2383: my ($name,$value)=split(/\=/,$line);
2384: $returnhash{&unescape($name)}=&thaw_unescape($value);
2385: }
2386: my $version;
2387: for ($version=1;$version<=$returnhash{'version'};$version++) {
2388: foreach my $item (split(/\:/,$returnhash{$version.':keys'})) {
2389: $returnhash{$item}=$returnhash{$version.':'.$item};
2390: }
2391: }
2392: }
2393: return %returnhash;
2394: }
2395:
2396: # ----------------------------------construct domainconfig user for a domain
2397: sub get_domainconfiguser {
2398: my ($udom) = @_;
2399: return $udom.'-domainconfig';
2400: }
2401:
2402: sub retrieve_inst_usertypes {
2403: my ($udom) = @_;
2404: my (%returnhash,@order);
2405: my %domdefs = &get_domain_defaults($udom);
2406: if ((ref($domdefs{'inststatustypes'}) eq 'HASH') &&
2407: (ref($domdefs{'inststatusorder'}) eq 'ARRAY')) {
2408: return ($domdefs{'inststatustypes'},$domdefs{'inststatusorder'});
2409: } else {
2410: if (defined(&domain($udom,'primary'))) {
2411: my $uhome=&domain($udom,'primary');
2412: my $rep=&reply("inst_usertypes:$udom",$uhome);
2413: if ($rep =~ /^(con_lost|error|no_such_host|refused)/) {
2414: &logthis("retrieve_inst_usertypes failed - $rep returned from $uhome in domain: $udom");
2415: return (\%returnhash,\@order);
2416: }
2417: my ($hashitems,$orderitems) = split(/:/,$rep);
2418: my @pairs=split(/\&/,$hashitems);
2419: foreach my $item (@pairs) {
2420: my ($key,$value)=split(/=/,$item,2);
2421: $key = &unescape($key);
2422: next if ($key =~ /^error: 2 /);
2423: $returnhash{$key}=&thaw_unescape($value);
2424: }
2425: my @esc_order = split(/\&/,$orderitems);
2426: foreach my $item (@esc_order) {
2427: push(@order,&unescape($item));
2428: }
2429: } else {
2430: &logthis("retrieve_inst_usertypes failed - no primary domain server for $udom");
2431: }
2432: return (\%returnhash,\@order);
2433: }
2434: }
2435:
2436: sub is_domainimage {
2437: my ($url) = @_;
2438: if ($url=~m-^/+res/+($match_domain)/+\1\-domainconfig/+(img|logo|domlogo|login)/+[^/]-) {
2439: if (&domain($1) ne '') {
2440: return '1';
2441: }
2442: }
2443: return;
2444: }
2445:
2446: sub inst_directory_query {
2447: my ($srch) = @_;
2448: my $udom = $srch->{'srchdomain'};
2449: my %results;
2450: my $homeserver = &domain($udom,'primary');
2451: my $outcome;
2452: if ($homeserver ne '') {
2453: unless ($homeserver eq $perlvar{'lonHostID'}) {
2454: if ($srch->{'srchby'} eq 'email') {
2455: my $lcrev = &get_server_loncaparev($udom,$homeserver);
2456: my ($major,$minor) = ($lcrev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?$/);
2457: if (($major eq '' && $minor eq '') || ($major < 2) ||
2458: (($major == 2) && ($minor < 12))) {
2459: return;
2460: }
2461: }
2462: }
2463: my $queryid=&reply("querysend:instdirsearch:".
2464: &escape($srch->{'srchby'}).':'.
2465: &escape($srch->{'srchterm'}).':'.
2466: &escape($srch->{'srchtype'}),$homeserver);
2467: my $host=&hostname($homeserver);
2468: if ($queryid !~/^\Q$host\E\_/) {
2469: &logthis('institutional directory search invalid queryid: '.$queryid.' for host: '.$homeserver.' in domain '.$udom);
2470: return;
2471: }
2472: my $response = &get_query_reply($queryid);
2473: my $maxtries = 5;
2474: my $tries = 1;
2475: while (($response=~/^timeout/) && ($tries < $maxtries)) {
2476: $response = &get_query_reply($queryid);
2477: $tries ++;
2478: }
2479:
2480: if (!&error($response) && $response ne 'refused') {
2481: if ($response eq 'unavailable') {
2482: $outcome = $response;
2483: } else {
2484: $outcome = 'ok';
2485: my @matches = split(/\n/,$response);
2486: foreach my $match (@matches) {
2487: my ($key,$value) = split(/=/,$match);
2488: $results{&unescape($key).':'.$udom} = &thaw_unescape($value);
2489: }
2490: }
2491: }
2492: }
2493: return ($outcome,%results);
2494: }
2495:
2496: sub usersearch {
2497: my ($srch) = @_;
2498: my $dom = $srch->{'srchdomain'};
2499: my %results;
2500: my %libserv = &all_library();
2501: my $query = 'usersearch';
2502: foreach my $tryserver (keys(%libserv)) {
2503: if (&host_domain($tryserver) eq $dom) {
2504: unless ($tryserver eq $perlvar{'lonHostID'}) {
2505: if ($srch->{'srchby'} eq 'email') {
2506: my $lcrev = &get_server_loncaparev($dom,$tryserver);
2507: my ($major,$minor) = ($lcrev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?$/);
2508: next if (($major eq '' && $minor eq '') || ($major < 2) ||
2509: (($major == 2) && ($minor < 12)));
2510: }
2511: }
2512: my $host=&hostname($tryserver);
2513: my $queryid=
2514: &reply("querysend:".&escape($query).':'.
2515: &escape($srch->{'srchby'}).':'.
2516: &escape($srch->{'srchtype'}).':'.
2517: &escape($srch->{'srchterm'}),$tryserver);
2518: if ($queryid !~/^\Q$host\E\_/) {
2519: &logthis('usersearch: invalid queryid: '.$queryid.' for host: '.$host.'in domain '.$dom.' and server: '.$tryserver);
2520: next;
2521: }
2522: my $reply = &get_query_reply($queryid);
2523: my $maxtries = 1;
2524: my $tries = 1;
2525: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
2526: $reply = &get_query_reply($queryid);
2527: $tries ++;
2528: }
2529: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
2530: &logthis('usersrch error: '.$reply.' for '.$dom.' - searching for : '.$srch->{'srchterm'}.' by '.$srch->{'srchby'}.' ('.$srch->{'srchtype'}.') - maxtries: '.$maxtries.' tries: '.$tries);
2531: } else {
2532: my @matches;
2533: if ($reply =~ /\n/) {
2534: @matches = split(/\n/,$reply);
2535: } else {
2536: @matches = split(/\&/,$reply);
2537: }
2538: foreach my $match (@matches) {
2539: my ($uname,$udom,%userhash);
2540: foreach my $entry (split(/:/,$match)) {
2541: my ($key,$value) =
2542: map {&unescape($_);} split(/=/,$entry);
2543: $userhash{$key} = $value;
2544: if ($key eq 'username') {
2545: $uname = $value;
2546: } elsif ($key eq 'domain') {
2547: $udom = $value;
2548: }
2549: }
2550: $results{$uname.':'.$udom} = \%userhash;
2551: }
2552: }
2553: }
2554: }
2555: return %results;
2556: }
2557:
2558: sub get_instuser {
2559: my ($udom,$uname,$id) = @_;
2560: my $homeserver = &domain($udom,'primary');
2561: my ($outcome,%results);
2562: if ($homeserver ne '') {
2563: my $queryid=&reply("querysend:getinstuser:".&escape($uname).':'.
2564: &escape($id).':'.&escape($udom),$homeserver);
2565: my $host=&hostname($homeserver);
2566: if ($queryid !~/^\Q$host\E\_/) {
2567: &logthis('get_instuser invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
2568: return;
2569: }
2570: my $response = &get_query_reply($queryid);
2571: my $maxtries = 5;
2572: my $tries = 1;
2573: while (($response=~/^timeout/) && ($tries < $maxtries)) {
2574: $response = &get_query_reply($queryid);
2575: $tries ++;
2576: }
2577: if (!&error($response) && $response ne 'refused') {
2578: if ($response eq 'unavailable') {
2579: $outcome = $response;
2580: } else {
2581: $outcome = 'ok';
2582: my @matches = split(/\n/,$response);
2583: foreach my $match (@matches) {
2584: my ($key,$value) = split(/=/,$match);
2585: $results{&unescape($key)} = &thaw_unescape($value);
2586: }
2587: }
2588: }
2589: }
2590: my %userinfo;
2591: if (ref($results{$uname}) eq 'HASH') {
2592: %userinfo = %{$results{$uname}};
2593: }
2594: return ($outcome,%userinfo);
2595: }
2596:
2597: sub get_multiple_instusers {
2598: my ($udom,$users,$caller) = @_;
2599: my ($outcome,$results);
2600: if (ref($users) eq 'HASH') {
2601: my $count = keys(%{$users});
2602: my $requested = &freeze_escape($users);
2603: my $homeserver = &domain($udom,'primary');
2604: if ($homeserver ne '') {
2605: my $queryid=&reply('querysend:getmultinstusers:::'.$caller.'='.$requested,$homeserver);
2606: my $host=&hostname($homeserver);
2607: if ($queryid !~/^\Q$host\E\_/) {
2608: &logthis('get_multiple_instusers invalid queryid: '.$queryid.
2609: ' for host: '.$homeserver.'in domain '.$udom);
2610: return ($outcome,$results);
2611: }
2612: my $response = &get_query_reply($queryid);
2613: my $maxtries = 5;
2614: if ($count > 100) {
2615: $maxtries = 1+int($count/20);
2616: }
2617: my $tries = 1;
2618: while (($response=~/^timeout/) && ($tries <= $maxtries)) {
2619: $response = &get_query_reply($queryid);
2620: $tries ++;
2621: }
2622: if ($response eq '') {
2623: $results = {};
2624: foreach my $key (keys(%{$users})) {
2625: my ($uname,$id);
2626: if ($caller eq 'id') {
2627: $id = $key;
2628: } else {
2629: $uname = $key;
2630: }
2631: my ($resp,%info) = &get_instuser($udom,$uname,$id);
2632: $outcome = $resp;
2633: if ($resp eq 'ok') {
2634: %{$results} = (%{$results}, %info);
2635: } else {
2636: last;
2637: }
2638: }
2639: } elsif(!&error($response) && ($response ne 'refused')) {
2640: if (($response eq 'unavailable') || ($response eq 'invalid') || ($response eq 'timeout')) {
2641: $outcome = $response;
2642: } else {
2643: ($outcome,my $userdata) = split(/=/,$response,2);
2644: if ($outcome eq 'ok') {
2645: $results = &thaw_unescape($userdata);
2646: }
2647: }
2648: }
2649: }
2650: }
2651: return ($outcome,$results);
2652: }
2653:
2654: sub inst_rulecheck {
2655: my ($udom,$uname,$id,$item,$rules) = @_;
2656: my %returnhash;
2657: if ($udom ne '') {
2658: if (ref($rules) eq 'ARRAY') {
2659: @{$rules} = map {&escape($_);} (@{$rules});
2660: my $rulestr = join(':',@{$rules});
2661: my $homeserver=&domain($udom,'primary');
2662: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
2663: my $response;
2664: if ($item eq 'username') {
2665: $response=&unescape(&reply('instrulecheck:'.&escape($udom).
2666: ':'.&escape($uname).':'.$rulestr,
2667: $homeserver));
2668: } elsif ($item eq 'id') {
2669: $response=&unescape(&reply('instidrulecheck:'.&escape($udom).
2670: ':'.&escape($id).':'.$rulestr,
2671: $homeserver));
2672: } elsif ($item eq 'selfcreate') {
2673: $response=&unescape(&reply('instselfcreatecheck:'.
2674: &escape($udom).':'.&escape($uname).
2675: ':'.$rulestr,$homeserver));
2676: } elsif ($item eq 'unamemap') {
2677: $response=&unescape(&reply('instunamemapcheck:'.
2678: &escape($udom).':'.&escape($uname).
2679: ':'.$rulestr,$homeserver));
2680: }
2681: if ($response ne 'refused') {
2682: my @pairs=split(/\&/,$response);
2683: foreach my $item (@pairs) {
2684: my ($key,$value)=split(/=/,$item,2);
2685: $key = &unescape($key);
2686: next if ($key =~ /^error: 2 /);
2687: $returnhash{$key}=&thaw_unescape($value);
2688: }
2689: }
2690: }
2691: }
2692: }
2693: return %returnhash;
2694: }
2695:
2696: sub inst_userrules {
2697: my ($udom,$check) = @_;
2698: my (%ruleshash,@ruleorder);
2699: if ($udom ne '') {
2700: my $homeserver=&domain($udom,'primary');
2701: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
2702: my $response;
2703: if ($check eq 'id') {
2704: $response=&reply('instidrules:'.&escape($udom),
2705: $homeserver);
2706: } elsif ($check eq 'email') {
2707: $response=&reply('instemailrules:'.&escape($udom),
2708: $homeserver);
2709: } elsif ($check eq 'unamemap') {
2710: $response=&reply('unamemaprules:'.&escape($udom),
2711: $homeserver);
2712: } else {
2713: $response=&reply('instuserrules:'.&escape($udom),
2714: $homeserver);
2715: }
2716: if (($response ne 'refused') && ($response ne 'error') &&
2717: ($response ne 'unknown_cmd') &&
2718: ($response ne 'no_such_host')) {
2719: my ($hashitems,$orderitems) = split(/:/,$response);
2720: my @pairs=split(/\&/,$hashitems);
2721: foreach my $item (@pairs) {
2722: my ($key,$value)=split(/=/,$item,2);
2723: $key = &unescape($key);
2724: next if ($key =~ /^error: 2 /);
2725: $ruleshash{$key}=&thaw_unescape($value);
2726: }
2727: my @esc_order = split(/\&/,$orderitems);
2728: foreach my $item (@esc_order) {
2729: push(@ruleorder,&unescape($item));
2730: }
2731: }
2732: }
2733: }
2734: return (\%ruleshash,\@ruleorder);
2735: }
2736:
2737: # ------------- Get Authentication, Language and User Tools Defaults for Domain
2738:
2739: sub get_domain_defaults {
2740: my ($domain,$ignore_cache) = @_;
2741: return if (($domain eq '') || ($domain eq 'public'));
2742: my $cachetime = 60*60*24;
2743: unless ($ignore_cache) {
2744: my ($result,$cached)=&is_cached_new('domdefaults',$domain);
2745: if (defined($cached)) {
2746: if (ref($result) eq 'HASH') {
2747: return %{$result};
2748: }
2749: }
2750: }
2751: my %domdefaults;
2752: my %domconfig =
2753: &get_dom('configuration',['defaults','quotas',
2754: 'requestcourses','inststatus',
2755: 'coursedefaults','usersessions',
2756: 'requestauthor','authordefaults',
2757: 'selfenrollment','coursecategories',
2758: 'ssl','autoenroll','trust',
2759: 'helpsettings','wafproxy',
2760: 'ltisec','toolsec','privacy'],$domain);
2761: my @coursetypes = ('official','unofficial','community','textbook','placement');
2762: if (ref($domconfig{'defaults'}) eq 'HASH') {
2763: $domdefaults{'lang_def'} = $domconfig{'defaults'}{'lang_def'};
2764: $domdefaults{'auth_def'} = $domconfig{'defaults'}{'auth_def'};
2765: $domdefaults{'auth_arg_def'} = $domconfig{'defaults'}{'auth_arg_def'};
2766: $domdefaults{'timezone_def'} = $domconfig{'defaults'}{'timezone_def'};
2767: $domdefaults{'datelocale_def'} = $domconfig{'defaults'}{'datelocale_def'};
2768: $domdefaults{'portal_def'} = $domconfig{'defaults'}{'portal_def'};
2769: $domdefaults{'portal_def_email'} = $domconfig{'defaults'}{'portal_def_email'};
2770: $domdefaults{'portal_def_web'} = $domconfig{'defaults'}{'portal_def_web'};
2771: $domdefaults{'intauth_cost'} = $domconfig{'defaults'}{'intauth_cost'};
2772: $domdefaults{'intauth_switch'} = $domconfig{'defaults'}{'intauth_switch'};
2773: $domdefaults{'intauth_check'} = $domconfig{'defaults'}{'intauth_check'};
2774: $domdefaults{'unamemap_rule'} = $domconfig{'defaults'}{'unamemap_rule'};
2775: } else {
2776: $domdefaults{'lang_def'} = &domain($domain,'lang_def');
2777: $domdefaults{'auth_def'} = &domain($domain,'auth_def');
2778: $domdefaults{'auth_arg_def'} = &domain($domain,'auth_arg_def');
2779: }
2780: if (ref($domconfig{'quotas'}) eq 'HASH') {
2781: if (ref($domconfig{'quotas'}{'defaultquota'}) eq 'HASH') {
2782: $domdefaults{'defaultquota'} = $domconfig{'quotas'}{'defaultquota'};
2783: } else {
2784: $domdefaults{'defaultquota'} = $domconfig{'quotas'};
2785: }
2786: my @usertools = ('aboutme','blog','webdav','portfolio','portaccess');
2787: foreach my $item (@usertools) {
2788: if (ref($domconfig{'quotas'}{$item}) eq 'HASH') {
2789: $domdefaults{$item} = $domconfig{'quotas'}{$item};
2790: }
2791: }
2792: if (ref($domconfig{'quotas'}{'authorquota'}) eq 'HASH') {
2793: $domdefaults{'authorquota'} = $domconfig{'quotas'}{'authorquota'};
2794: }
2795: }
2796: if (ref($domconfig{'requestcourses'}) eq 'HASH') {
2797: foreach my $item ('official','unofficial','community','textbook','placement') {
2798: $domdefaults{$item} = $domconfig{'requestcourses'}{$item};
2799: }
2800: }
2801: if (ref($domconfig{'requestauthor'}) eq 'HASH') {
2802: $domdefaults{'requestauthor'} = $domconfig{'requestauthor'};
2803: }
2804: if (ref($domconfig{'authordefaults'}) eq 'HASH') {
2805: foreach my $item ('nocodemirror','copyright','sourceavail','domcoordacc','editors') {
2806: if ($item eq 'editors') {
2807: if (ref($domconfig{'authordefaults'}{'editors'}) eq 'ARRAY') {
2808: $domdefaults{$item} = join(',',@{$domconfig{'authordefaults'}{'editors'}});
2809: }
2810: } else {
2811: $domdefaults{$item} = $domconfig{'authordefaults'}{$item};
2812: }
2813: }
2814: }
2815: if (ref($domconfig{'inststatus'}) eq 'HASH') {
2816: foreach my $item ('inststatustypes','inststatusorder','inststatusguest') {
2817: $domdefaults{$item} = $domconfig{'inststatus'}{$item};
2818: }
2819: }
2820: if (ref($domconfig{'coursedefaults'}) eq 'HASH') {
2821: $domdefaults{'canuse_pdfforms'} = $domconfig{'coursedefaults'}{'canuse_pdfforms'};
2822: $domdefaults{'usejsme'} = $domconfig{'coursedefaults'}{'usejsme'};
2823: $domdefaults{'inline_chem'} = $domconfig{'coursedefaults'}{'inline_chem'};
2824: $domdefaults{'uselcmath'} = $domconfig{'coursedefaults'}{'uselcmath'};
2825: if (ref($domconfig{'coursedefaults'}{'postsubmit'}) eq 'HASH') {
2826: $domdefaults{'postsubmit'} = $domconfig{'coursedefaults'}{'postsubmit'}{'client'};
2827: }
2828: foreach my $type (@coursetypes) {
2829: if (ref($domconfig{'coursedefaults'}{'coursecredits'}) eq 'HASH') {
2830: unless ($type eq 'community') {
2831: $domdefaults{$type.'credits'} = $domconfig{'coursedefaults'}{'coursecredits'}{$type};
2832: }
2833: }
2834: if (ref($domconfig{'coursedefaults'}{'uploadquota'}) eq 'HASH') {
2835: $domdefaults{$type.'quota'} = $domconfig{'coursedefaults'}{'uploadquota'}{$type};
2836: }
2837: if (ref($domconfig{'coursedefaults'}{'coursequota'}) eq 'HASH') {
2838: $domdefaults{$type.'coursequota'} = $domconfig{'coursedefaults'}{'coursequota'}{$type};
2839: }
2840: if ($domdefaults{'postsubmit'} eq 'on') {
2841: if (ref($domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}) eq 'HASH') {
2842: $domdefaults{$type.'postsubtimeout'} =
2843: $domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}{$type};
2844: }
2845: }
2846: if (ref($domconfig{'coursedefaults'}{'domexttool'}) eq 'HASH') {
2847: $domdefaults{$type.'domexttool'} = $domconfig{'coursedefaults'}{'domexttool'}{$type};
2848: } else {
2849: $domdefaults{$type.'domexttool'} = 1;
2850: }
2851: if (ref($domconfig{'coursedefaults'}{'exttool'}) eq 'HASH') {
2852: $domdefaults{$type.'exttool'} = $domconfig{'coursedefaults'}{'exttool'}{$type};
2853: } else {
2854: $domdefaults{$type.'exttool'} = 0;
2855: }
2856: if (ref($domconfig{'coursedefaults'}{'crsauthor'}) eq 'HASH') {
2857: $domdefaults{$type.'crsauthor'} = $domconfig{'coursedefaults'}{'crsauthor'}{$type};
2858: } else {
2859: $domdefaults{$type.'crsauthor'} = 1;
2860: }
2861: }
2862: if (ref($domconfig{'coursedefaults'}{'canclone'}) eq 'HASH') {
2863: if (ref($domconfig{'coursedefaults'}{'canclone'}{'instcode'}) eq 'ARRAY') {
2864: my @clonecodes = @{$domconfig{'coursedefaults'}{'canclone'}{'instcode'}};
2865: if (@clonecodes) {
2866: $domdefaults{'canclone'} = join('+',@clonecodes);
2867: }
2868: }
2869: } elsif ($domconfig{'coursedefaults'}{'canclone'}) {
2870: $domdefaults{'canclone'}=$domconfig{'coursedefaults'}{'canclone'};
2871: }
2872: if ($domconfig{'coursedefaults'}{'texengine'}) {
2873: $domdefaults{'texengine'} = $domconfig{'coursedefaults'}{'texengine'};
2874: }
2875: if (exists($domconfig{'coursedefaults'}{'ltiauth'})) {
2876: $domdefaults{'crsltiauth'} = $domconfig{'coursedefaults'}{'ltiauth'};
2877: }
2878: }
2879: if (ref($domconfig{'usersessions'}) eq 'HASH') {
2880: if (ref($domconfig{'usersessions'}{'remote'}) eq 'HASH') {
2881: $domdefaults{'remotesessions'} = $domconfig{'usersessions'}{'remote'};
2882: }
2883: if (ref($domconfig{'usersessions'}{'hosted'}) eq 'HASH') {
2884: $domdefaults{'hostedsessions'} = $domconfig{'usersessions'}{'hosted'};
2885: }
2886: if (ref($domconfig{'usersessions'}{'offloadnow'}) eq 'HASH') {
2887: $domdefaults{'offloadnow'} = $domconfig{'usersessions'}{'offloadnow'};
2888: }
2889: if (ref($domconfig{'usersessions'}{'offloadoth'}) eq 'HASH') {
2890: $domdefaults{'offloadoth'} = $domconfig{'usersessions'}{'offloadoth'};
2891: }
2892: }
2893: if (ref($domconfig{'selfenrollment'}) eq 'HASH') {
2894: if (ref($domconfig{'selfenrollment'}{'admin'}) eq 'HASH') {
2895: my @settings = ('types','registered','enroll_dates','access_dates','section',
2896: 'approval','limit');
2897: foreach my $type (@coursetypes) {
2898: if (ref($domconfig{'selfenrollment'}{'admin'}{$type}) eq 'HASH') {
2899: my @mgrdc = ();
2900: foreach my $item (@settings) {
2901: if ($domconfig{'selfenrollment'}{'admin'}{$type}{$item} eq '0') {
2902: push(@mgrdc,$item);
2903: }
2904: }
2905: if (@mgrdc) {
2906: $domdefaults{$type.'selfenrolladmdc'} = join(',',@mgrdc);
2907: }
2908: }
2909: }
2910: }
2911: if (ref($domconfig{'selfenrollment'}{'default'}) eq 'HASH') {
2912: foreach my $type (@coursetypes) {
2913: if (ref($domconfig{'selfenrollment'}{'default'}{$type}) eq 'HASH') {
2914: foreach my $item (keys(%{$domconfig{'selfenrollment'}{'default'}{$type}})) {
2915: $domdefaults{$type.'selfenroll'.$item} = $domconfig{'selfenrollment'}{'default'}{$type}{$item};
2916: }
2917: }
2918: }
2919: }
2920: }
2921: if (ref($domconfig{'coursecategories'}) eq 'HASH') {
2922: $domdefaults{'catauth'} = 'std';
2923: $domdefaults{'catunauth'} = 'std';
2924: if ($domconfig{'coursecategories'}{'auth'}) {
2925: $domdefaults{'catauth'} = $domconfig{'coursecategories'}{'auth'};
2926: }
2927: if ($domconfig{'coursecategories'}{'unauth'}) {
2928: $domdefaults{'catunauth'} = $domconfig{'coursecategories'}{'unauth'};
2929: }
2930: }
2931: if (ref($domconfig{'ssl'}) eq 'HASH') {
2932: if (ref($domconfig{'ssl'}{'replication'}) eq 'HASH') {
2933: $domdefaults{'replication'} = $domconfig{'ssl'}{'replication'};
2934: }
2935: if (ref($domconfig{'ssl'}{'connto'}) eq 'HASH') {
2936: $domdefaults{'connect'} = $domconfig{'ssl'}{'connto'};
2937: }
2938: if (ref($domconfig{'ssl'}{'connfrom'}) eq 'HASH') {
2939: $domdefaults{'connect'} = $domconfig{'ssl'}{'connfrom'};
2940: }
2941: }
2942: if (ref($domconfig{'trust'}) eq 'HASH') {
2943: my @prefixes = qw(content shared enroll othcoau coaurem domroles catalog reqcrs msg);
2944: foreach my $prefix (@prefixes) {
2945: if (ref($domconfig{'trust'}{$prefix}) eq 'HASH') {
2946: $domdefaults{'trust'.$prefix} = $domconfig{'trust'}{$prefix};
2947: }
2948: }
2949: }
2950: if (ref($domconfig{'autoenroll'}) eq 'HASH') {
2951: $domdefaults{'autofailsafe'} = $domconfig{'autoenroll'}{'autofailsafe'};
2952: $domdefaults{'failsafe'} = $domconfig{'autoenroll'}{'failsafe'};
2953: }
2954: if (ref($domconfig{'helpsettings'}) eq 'HASH') {
2955: $domdefaults{'submitbugs'} = $domconfig{'helpsettings'}{'submitbugs'};
2956: if (ref($domconfig{'helpsettings'}{'adhoc'}) eq 'HASH') {
2957: $domdefaults{'adhocroles'} = $domconfig{'helpsettings'}{'adhoc'};
2958: }
2959: }
2960: if (ref($domconfig{'wafproxy'}) eq 'HASH') {
2961: foreach my $item ('ipheader','trusted','vpnint','vpnext','sslopt') {
2962: if ($domconfig{'wafproxy'}{$item}) {
2963: $domdefaults{'waf_'.$item} = $domconfig{'wafproxy'}{$item};
2964: }
2965: }
2966: }
2967: if (ref($domconfig{'ltisec'}) eq 'HASH') {
2968: if (ref($domconfig{'ltisec'}{'encrypt'}) eq 'HASH') {
2969: $domdefaults{'linkprotenc_crs'} = $domconfig{'ltisec'}{'encrypt'}{'crs'};
2970: $domdefaults{'linkprotenc_dom'} = $domconfig{'ltisec'}{'encrypt'}{'dom'};
2971: $domdefaults{'ltienc_consumers'} = $domconfig{'ltisec'}{'encrypt'}{'consumers'};
2972: }
2973: if (ref($domconfig{'ltisec'}{'private'}) eq 'HASH') {
2974: if (ref($domconfig{'ltisec'}{'private'}{'keys'}) eq 'ARRAY') {
2975: $domdefaults{'ltiprivhosts'} = $domconfig{'ltisec'}{'private'}{'keys'};
2976: }
2977: }
2978: }
2979: if (ref($domconfig{'toolsec'}) eq 'HASH') {
2980: if (ref($domconfig{'toolsec'}{'encrypt'}) eq 'HASH') {
2981: $domdefaults{'toolenc_crs'} = $domconfig{'toolsec'}{'encrypt'}{'crs'};
2982: $domdefaults{'toolenc_dom'} = $domconfig{'toolsec'}{'encrypt'}{'dom'};
2983: }
2984: if (ref($domconfig{'toolsec'}{'private'}) eq 'HASH') {
2985: if (ref($domconfig{'toolsec'}{'private'}{'keys'}) eq 'ARRAY') {
2986: $domdefaults{'toolprivhosts'} = $domconfig{'toolsec'}{'private'}{'keys'};
2987: }
2988: }
2989: }
2990: if (ref($domconfig{'privacy'}) eq 'HASH') {
2991: if (ref($domconfig{'privacy'}{'approval'}) eq 'HASH') {
2992: foreach my $domtype ('instdom','extdom') {
2993: if (ref($domconfig{'privacy'}{'approval'}{$domtype}) eq 'HASH') {
2994: foreach my $roletype ('domain','author','course','community') {
2995: if ($domconfig{'privacy'}{'approval'}{$domtype}{$roletype} eq 'user') {
2996: $domdefaults{'userapprovals'} = 1;
2997: last;
2998: }
2999: }
3000: }
3001: last if ($domdefaults{'userapprovals'});
3002: }
3003: }
3004: }
3005: &do_cache_new('domdefaults',$domain,\%domdefaults,$cachetime);
3006: return %domdefaults;
3007: }
3008:
3009: sub get_dom_cats {
3010: my ($dom) = @_;
3011: return unless (&domain($dom));
3012: my ($cats,$cached)=&is_cached_new('cats',$dom);
3013: unless (defined($cached)) {
3014: my %domconfig = &get_dom('configuration',['coursecategories'],$dom);
3015: if (ref($domconfig{'coursecategories'}) eq 'HASH') {
3016: if (ref($domconfig{'coursecategories'}{'cats'}) eq 'HASH') {
3017: %{$cats} = %{$domconfig{'coursecategories'}{'cats'}};
3018: } else {
3019: $cats = {};
3020: }
3021: } else {
3022: $cats = {};
3023: }
3024: &do_cache_new('cats',$dom,$cats,3600);
3025: }
3026: return $cats;
3027: }
3028:
3029: sub get_dom_instcats {
3030: my ($dom) = @_;
3031: return unless (&domain($dom));
3032: my ($instcats,$cached)=&is_cached_new('instcats',$dom);
3033: unless (defined($cached)) {
3034: my (%coursecodes,%codes,@codetitles,%cat_titles,%cat_order);
3035: my $totcodes = &retrieve_instcodes(\%coursecodes,$dom);
3036: if ($totcodes > 0) {
3037: my $caller = 'global';
3038: if (&auto_instcode_format($caller,$dom,\%coursecodes,\%codes,
3039: \@codetitles,\%cat_titles,\%cat_order) eq 'ok') {
3040: $instcats = {
3041: totcodes => $totcodes,
3042: codes => \%codes,
3043: codetitles => \@codetitles,
3044: cat_titles => \%cat_titles,
3045: cat_order => \%cat_order,
3046: };
3047: &do_cache_new('instcats',$dom,$instcats,3600);
3048: }
3049: }
3050: }
3051: return $instcats;
3052: }
3053:
3054: sub retrieve_instcodes {
3055: my ($coursecodes,$dom) = @_;
3056: my $totcodes;
3057: my %courses = &courseiddump($dom,'.',1,'.','.','.',undef,undef,'Course');
3058: foreach my $course (keys(%courses)) {
3059: if (ref($courses{$course}) eq 'HASH') {
3060: if ($courses{$course}{'inst_code'} ne '') {
3061: $$coursecodes{$course} = $courses{$course}{'inst_code'};
3062: $totcodes ++;
3063: }
3064: }
3065: }
3066: return $totcodes;
3067: }
3068:
3069: sub course_portal_url {
3070: my ($cnum,$cdom,$r) = @_;
3071: my $chome = &homeserver($cnum,$cdom);
3072: my $hostname = &hostname($chome);
3073: my $protocol = $protocol{$chome};
3074: $protocol = 'http' if ($protocol ne 'https');
3075: my %domdefaults = &get_domain_defaults($cdom);
3076: my $firsturl;
3077: if ($domdefaults{'portal_def'}) {
3078: $firsturl = $domdefaults{'portal_def'};
3079: } else {
3080: my $alias = &use_proxy_alias($r,$chome);
3081: $hostname = $alias if ($alias ne '');
3082: $firsturl = $protocol.'://'.$hostname;
3083: }
3084: return $firsturl;
3085: }
3086:
3087: sub url_prefix {
3088: my ($r,$dom,$home,$context) = @_;
3089: my $prefix;
3090: my %domdefs = &get_domain_defaults($dom);
3091: if ($domdefs{'portal_def'} && $domdefs{'portal_def_'.$context}) {
3092: if ($domdefs{'portal_def'} =~ m{^(https?://[^/]+)}) {
3093: $prefix = $1;
3094: }
3095: }
3096: if ($prefix eq '') {
3097: my $hostname = &hostname($home);
3098: my $protocol = $protocol{$home};
3099: $protocol = 'http' if ($protocol{$home} ne 'https');
3100: my $alias = &use_proxy_alias($r,$home);
3101: $hostname = $alias if ($alias ne '');
3102: $prefix = $protocol.'://'.$hostname;
3103: }
3104: return $prefix;
3105: }
3106:
3107: # --------------------------------------------- Get domain config for passwords
3108:
3109: sub get_passwdconf {
3110: my ($dom) = @_;
3111: my (%passwdconf,$gotconf,$lookup);
3112: my ($result,$cached)=&is_cached_new('passwdconf',$dom);
3113: if (defined($cached)) {
3114: if (ref($result) eq 'HASH') {
3115: %passwdconf = %{$result};
3116: $gotconf = 1;
3117: }
3118: }
3119: unless ($gotconf) {
3120: my %domconfig = &get_dom('configuration',['passwords'],$dom);
3121: if (ref($domconfig{'passwords'}) eq 'HASH') {
3122: %passwdconf = %{$domconfig{'passwords'}};
3123: }
3124: my $cachetime = 24*60*60;
3125: &do_cache_new('passwdconf',$dom,\%passwdconf,$cachetime);
3126: }
3127: return %passwdconf;
3128: }
3129:
3130: # --------------------------------------------------- Assign a key to a student
3131:
3132: sub assign_access_key {
3133: #
3134: # a valid key looks like uname:udom#comments
3135: # comments are being appended
3136: #
3137: my ($ckey,$kdom,$knum,$cdom,$cnum,$udom,$uname,$logentry)=@_;
3138: $kdom=
3139: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($kdom));
3140: $knum=
3141: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($knum));
3142: $cdom=
3143: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
3144: $cnum=
3145: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
3146: $udom=$env{'user.name'} unless (defined($udom));
3147: $uname=$env{'user.domain'} unless (defined($uname));
3148: my %existing=&get('accesskeys',[$ckey],$kdom,$knum);
3149: if (($existing{$ckey}=~/^\#(.*)$/) || # - new key
3150: ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#(.*)$/)) {
3151: # assigned to this person
3152: # - this should not happen,
3153: # unless something went wrong
3154: # the first time around
3155: # ready to assign
3156: $logentry=$1.'; '.$logentry;
3157: if (&put('accesskeys',{$ckey=>$uname.':'.$udom.'#'.$logentry},
3158: $kdom,$knum) eq 'ok') {
3159: # key now belongs to user
3160: my $envkey='key.'.$cdom.'_'.$cnum;
3161: if (&put('environment',{$envkey => $ckey}) eq 'ok') {
3162: &appenv({'environment.'.$envkey => $ckey});
3163: return 'ok';
3164: } else {
3165: return
3166: 'error: Count not permanently assign key, will need to be re-entered later.';
3167: }
3168: } else {
3169: return 'error: Could not assign key, try again later.';
3170: }
3171: } elsif (!$existing{$ckey}) {
3172: # the key does not exist
3173: return 'error: The key does not exist';
3174: } else {
3175: # the key is somebody else's
3176: return 'error: The key is already in use';
3177: }
3178: }
3179:
3180: # ------------------------------------------ put an additional comment on a key
3181:
3182: sub comment_access_key {
3183: #
3184: # a valid key looks like uname:udom#comments
3185: # comments are being appended
3186: #
3187: my ($ckey,$cdom,$cnum,$logentry)=@_;
3188: $cdom=
3189: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
3190: $cnum=
3191: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
3192: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
3193: if ($existing{$ckey}) {
3194: $existing{$ckey}.='; '.$logentry;
3195: # ready to assign
3196: if (&put('accesskeys',{$ckey=>$existing{$ckey}},
3197: $cdom,$cnum) eq 'ok') {
3198: return 'ok';
3199: } else {
3200: return 'error: Count not store comment.';
3201: }
3202: } else {
3203: # the key does not exist
3204: return 'error: The key does not exist';
3205: }
3206: }
3207:
3208: # ------------------------------------------------------ Generate a set of keys
3209:
3210: sub generate_access_keys {
3211: my ($number,$cdom,$cnum,$logentry)=@_;
3212: $cdom=
3213: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
3214: $cnum=
3215: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
3216: unless (&allowed('mky',$cdom)) { return 0; }
3217: unless (($cdom) && ($cnum)) { return 0; }
3218: if ($number>10000) { return 0; }
3219: sleep(2); # make sure don't get same seed twice
3220: srand(time()^($$+($$<<15))); # from "Programming Perl"
3221: my $total=0;
3222: for (my $i=1;$i<=$number;$i++) {
3223: my $newkey=sprintf("%lx",int(100000*rand)).'-'.
3224: sprintf("%lx",int(100000*rand)).'-'.
3225: sprintf("%lx",int(100000*rand));
3226: $newkey=~s/1/g/g; # folks mix up 1 and l
3227: $newkey=~s/0/h/g; # and also 0 and O
3228: my %existing=&get('accesskeys',[$newkey],$cdom,$cnum);
3229: if ($existing{$newkey}) {
3230: $i--;
3231: } else {
3232: if (&put('accesskeys',
3233: { $newkey => '# generated '.localtime().
3234: ' by '.$env{'user.name'}.'@'.$env{'user.domain'}.
3235: '; '.$logentry },
3236: $cdom,$cnum) eq 'ok') {
3237: $total++;
3238: }
3239: }
3240: }
3241: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
3242: 'Generated '.$total.' keys for '.$cnum.' at '.$cdom);
3243: return $total;
3244: }
3245:
3246: # ------------------------------------------------------- Validate an accesskey
3247:
3248: sub validate_access_key {
3249: my ($ckey,$cdom,$cnum,$udom,$uname)=@_;
3250: $cdom=
3251: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
3252: $cnum=
3253: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
3254: $udom=$env{'user.domain'} unless (defined($udom));
3255: $uname=$env{'user.name'} unless (defined($uname));
3256: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
3257: return ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#/);
3258: }
3259:
3260: # ------------------------------------- Find the section of student in a course
3261: sub devalidate_getsection_cache {
3262: my ($udom,$unam,$courseid)=@_;
3263: my $hashid="$udom:$unam:$courseid";
3264: &devalidate_cache_new('getsection',$hashid);
3265: }
3266:
3267: sub courseid_to_courseurl {
3268: my ($courseid) = @_;
3269: #already url style courseid
3270: return $courseid if ($courseid =~ m{^/});
3271:
3272: if (exists($env{'course.'.$courseid.'.num'})) {
3273: my $cnum = $env{'course.'.$courseid.'.num'};
3274: my $cdom = $env{'course.'.$courseid.'.domain'};
3275: return "/$cdom/$cnum";
3276: }
3277:
3278: my %courseinfo=&coursedescription($courseid);
3279: if (exists($courseinfo{'num'})) {
3280: return "/$courseinfo{'domain'}/$courseinfo{'num'}";
3281: }
3282:
3283: return undef;
3284: }
3285:
3286: sub getsection {
3287: my ($udom,$unam,$courseid)=@_;
3288: my $cachetime=1800;
3289:
3290: my $hashid="$udom:$unam:$courseid";
3291: my ($result,$cached)=&is_cached_new('getsection',$hashid);
3292: if (defined($cached)) { return $result; }
3293:
3294: my %Pending;
3295: my %Expired;
3296: #
3297: # Each role can either have not started yet (pending), be active,
3298: # or have expired.
3299: #
3300: # If there is an active role, we are done.
3301: #
3302: # If there is more than one role which has not started yet,
3303: # choose the one which will start sooner
3304: # If there is one role which has not started yet, return it.
3305: #
3306: # If there is more than one expired role, choose the one which ended last.
3307: # If there is a role which has expired, return it.
3308: #
3309: $courseid = &courseid_to_courseurl($courseid);
3310: my %roleshash = &dump('roles',$udom,$unam,$courseid);
3311: foreach my $key (keys(%roleshash)) {
3312: next if ($key !~/^\Q$courseid\E(?:\/)*(\w+)*\_st$/);
3313: my $section=$1;
3314: if ($key eq $courseid.'_st') { $section=''; }
3315: my ($dummy,$end,$start)=split(/\_/,&unescape($roleshash{$key}));
3316: my $now=time;
3317: if (defined($end) && $end && ($now > $end)) {
3318: $Expired{$end}=$section;
3319: next;
3320: }
3321: if (defined($start) && $start && ($now < $start)) {
3322: $Pending{$start}=$section;
3323: next;
3324: }
3325: return &do_cache_new('getsection',$hashid,$section,$cachetime);
3326: }
3327: #
3328: # Presumedly there will be few matching roles from the above
3329: # loop and the sorting time will be negligible.
3330: if (scalar(keys(%Pending))) {
3331: my ($time) = sort {$a <=> $b} keys(%Pending);
3332: return &do_cache_new('getsection',$hashid,$Pending{$time},$cachetime);
3333: }
3334: if (scalar(keys(%Expired))) {
3335: my @sorted = sort {$a <=> $b} keys(%Expired);
3336: my $time = pop(@sorted);
3337: return &do_cache_new('getsection',$hashid,$Expired{$time},$cachetime);
3338: }
3339: return &do_cache_new('getsection',$hashid,'-1',$cachetime);
3340: }
3341:
3342: sub save_cache {
3343: &purge_remembered();
3344: #&Apache::loncommon::validate_page();
3345: undef(%env);
3346: undef($env_loaded);
3347: }
3348:
3349: my $to_remember=-1;
3350: my %remembered;
3351: my %accessed;
3352: my $kicks=0;
3353: my $hits=0;
3354: sub make_key {
3355: my ($name,$id) = @_;
3356: if (length($id) > 65
3357: && length(&escape($id)) > 200) {
3358: $id=length($id).':'.&Digest::MD5::md5_hex($id);
3359: }
3360: return &escape($name.':'.$id);
3361: }
3362:
3363: sub devalidate_cache_new {
3364: my ($name,$id,$debug) = @_;
3365: if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); }
3366: my $remembered_id=$name.':'.$id;
3367: $id=&make_key($name,$id);
3368: $memcache->delete($id);
3369: delete($remembered{$remembered_id});
3370: delete($accessed{$remembered_id});
3371: }
3372:
3373: sub is_cached_new {
3374: my ($name,$id,$debug) = @_;
3375: my $remembered_id=$name.':'.$id; # this is to avoid make_key (which is slow) whenever possible
3376: if (exists($remembered{$remembered_id})) {
3377: if ($debug) { &Apache::lonnet::logthis("Early return $remembered_id of $remembered{$remembered_id} "); }
3378: $accessed{$remembered_id}=[&gettimeofday()];
3379: $hits++;
3380: return ($remembered{$remembered_id},1);
3381: }
3382: $id=&make_key($name,$id);
3383: my $value = $memcache->get($id);
3384: if (!(defined($value))) {
3385: if ($debug) { &Apache::lonnet::logthis("getting $id is not defined"); }
3386: return (undef,undef);
3387: }
3388: if ($value eq '__undef__') {
3389: if ($debug) { &Apache::lonnet::logthis("getting $id is __undef__"); }
3390: $value=undef;
3391: }
3392: &make_room($remembered_id,$value,$debug);
3393: if ($debug) { &Apache::lonnet::logthis("getting $id is $value"); }
3394: return ($value,1);
3395: }
3396:
3397: sub do_cache_new {
3398: my ($name,$id,$value,$time,$debug) = @_;
3399: my $remembered_id=$name.':'.$id;
3400: $id=&make_key($name,$id);
3401: my $setvalue=$value;
3402: if (!defined($setvalue)) {
3403: $setvalue='__undef__';
3404: }
3405: if (!defined($time) ) {
3406: $time=600;
3407: }
3408: if ($debug) { &Apache::lonnet::logthis("Setting $id to $value"); }
3409: my $result = $memcache->set($id,$setvalue,$time);
3410: if (! $result) {
3411: &logthis("caching of id -> $id failed");
3412: $memcache->disconnect_all();
3413: }
3414: # need to make a copy of $value
3415: &make_room($remembered_id,$value,$debug);
3416: return $value;
3417: }
3418:
3419: sub make_room {
3420: my ($remembered_id,$value,$debug)=@_;
3421:
3422: $remembered{$remembered_id}= (ref($value)) ? &Storable::dclone($value)
3423: : $value;
3424: if ($to_remember<0) { return; }
3425: $accessed{$remembered_id}=[&gettimeofday()];
3426: if (scalar(keys(%remembered)) <= $to_remember) { return; }
3427: my $to_kick;
3428: my $max_time=0;
3429: foreach my $other (keys(%accessed)) {
3430: if (&tv_interval($accessed{$other}) > $max_time) {
3431: $to_kick=$other;
3432: $max_time=&tv_interval($accessed{$other});
3433: }
3434: }
3435: delete($remembered{$to_kick});
3436: delete($accessed{$to_kick});
3437: $kicks++;
3438: if ($debug) { &logthis("kicking $to_kick $max_time $kicks\n"); }
3439: return;
3440: }
3441:
3442: sub purge_remembered {
3443: #&logthis("Tossing ".scalar(keys(%remembered)));
3444: #&logthis(sprintf("%-20s is %s",'%remembered',length(&freeze(\%remembered))));
3445: undef(%remembered);
3446: undef(%accessed);
3447: }
3448: # ------------------------------------- Read an entry from a user's environment
3449:
3450: sub userenvironment {
3451: my ($udom,$unam,@what)=@_;
3452: my $items;
3453: foreach my $item (@what) {
3454: $items.=&escape($item).'&';
3455: }
3456: $items=~s/\&$//;
3457: my %returnhash=();
3458: my $uhome = &homeserver($unam,$udom);
3459: unless ($uhome eq 'no_host') {
3460: my @answer=split(/\&/,
3461: &reply('get:'.$udom.':'.$unam.':environment:'.$items,$uhome));
3462: if ($#answer==0 && $answer[0] =~ /^(con_lost|error:|no_such_host)/i) {
3463: return %returnhash;
3464: }
3465: my $i;
3466: for ($i=0;$i<=$#what;$i++) {
3467: $returnhash{$what[$i]}=&unescape($answer[$i]);
3468: }
3469: }
3470: return %returnhash;
3471: }
3472:
3473: # ---------------------------------------------------------- Get a studentphoto
3474: sub studentphoto {
3475: my ($udom,$unam,$ext) = @_;
3476: my $home=&homeserver($unam,$udom);
3477: if (defined($env{'request.course.id'})) {
3478: if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) {
3479: if ($udom eq $env{'course.'.$env{'request.course.id'}.'.domain'}) {
3480: return(&retrievestudentphoto($udom,$unam,$ext));
3481: } else {
3482: my ($result,$perm_reqd)=
3483: &auto_photo_permission($unam,$udom);
3484: if ($result eq 'ok') {
3485: if (!($perm_reqd eq 'yes')) {
3486: return(&retrievestudentphoto($udom,$unam,$ext));
3487: }
3488: }
3489: }
3490: }
3491: } else {
3492: my ($result,$perm_reqd) =
3493: &auto_photo_permission($unam,$udom);
3494: if ($result eq 'ok') {
3495: if (!($perm_reqd eq 'yes')) {
3496: return(&retrievestudentphoto($udom,$unam,$ext));
3497: }
3498: }
3499: }
3500: return '/adm/lonKaputt/lonlogo_broken.gif';
3501: }
3502:
3503: sub retrievestudentphoto {
3504: my ($udom,$unam,$ext,$type) = @_;
3505: my $home=&homeserver($unam,$udom);
3506: my $ret=&reply("studentphoto:$udom:$unam:$ext:$type",$home);
3507: if ($ret eq 'ok') {
3508: my $url="/uploaded/$udom/$unam/internal/studentphoto.$ext";
3509: if ($type eq 'thumbnail') {
3510: $url="/uploaded/$udom/$unam/internal/studentphoto_tn.$ext";
3511: }
3512: my $tokenurl=&tokenwrapper($url);
3513: return $tokenurl;
3514: } else {
3515: if ($type eq 'thumbnail') {
3516: return '/adm/lonKaputt/genericstudent_tn.gif';
3517: } else {
3518: return '/adm/lonKaputt/lonlogo_broken.gif';
3519: }
3520: }
3521: }
3522:
3523: # -------------------------------------------------------------------- New chat
3524:
3525: sub chatsend {
3526: my ($newentry,$anon,$group)=@_;
3527: my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
3528: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
3529: my $chome=$env{'course.'.$env{'request.course.id'}.'.home'};
3530: &reply('chatsend:'.$cdom.':'.$cnum.':'.
3531: &escape($env{'user.domain'}.':'.$env{'user.name'}.':'.$anon.':'.
3532: &escape($newentry)).':'.$group,$chome);
3533: }
3534:
3535: # ------------------------------------------ Find current version of a resource
3536:
3537: sub getversion {
3538: my $fname=&clutter(shift);
3539: unless ($fname=~m{^(/adm/wrapper|)/res/}) { return -1; }
3540: return ¤tversion(&filelocation('',$fname));
3541: }
3542:
3543: sub currentversion {
3544: my $fname=shift;
3545: my $author=$fname;
3546: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
3547: my ($udom,$uname)=split(/\//,$author);
3548: my $home=&homeserver($uname,$udom);
3549: if ($home eq 'no_host') {
3550: return -1;
3551: }
3552: my $answer=&reply("currentversion:$fname",$home);
3553: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
3554: return -1;
3555: }
3556: return $answer;
3557: }
3558:
3559: #
3560: # Return special version number of resource if set by override, empty otherwise
3561: #
3562: sub usedversion {
3563: my $fname=shift;
3564: unless ($fname) { $fname=$env{'request.uri'}; }
3565: my ($urlversion)=($fname=~/\.(\d+)\.\w+$/);
3566: if ($urlversion) { return $urlversion; }
3567: return '';
3568: }
3569:
3570: # ----------------------------- Subscribe to a resource, return URL if possible
3571:
3572: sub subscribe {
3573: my $fname=shift;
3574: if ($fname=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) { return ''; }
3575: $fname=~s/[\n\r]//g;
3576: my $author=$fname;
3577: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
3578: my ($udom,$uname)=split(/\//,$author);
3579: my $home=homeserver($uname,$udom);
3580: if ($home eq 'no_host') {
3581: return 'not_found';
3582: }
3583: my $answer=reply("sub:$fname",$home);
3584: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
3585: $answer.=' by '.$home;
3586: }
3587: return $answer;
3588: }
3589:
3590: # -------------------------------------------------------------- Replicate file
3591:
3592: sub repcopy {
3593: my $filename=shift;
3594: $filename=~s/\/+/\//g;
3595: my $londocroot = $perlvar{'lonDocRoot'};
3596: if ($filename=~m{^\Q$londocroot/adm/\E}) { return 'ok'; }
3597: if ($filename=~m{^\Q/home/httpd/lonUsers/\E}) { return 'ok'; }
3598: if ($filename=~m{^\Q$londocroot/userfiles/\E} or
3599: $filename=~m{^/*(uploaded|editupload)/}) {
3600: return &repcopy_userfile($filename);
3601: }
3602: $filename=~s/[\n\r]//g;
3603: my $transname="$filename.in.transfer";
3604: # FIXME: this should flock
3605: if ((-e $filename) || (-e $transname)) { return 'ok'; }
3606: my $remoteurl=subscribe($filename);
3607: if ($remoteurl =~ /^con_lost by/) {
3608: &logthis("Subscribe returned $remoteurl: $filename");
3609: return 'unavailable';
3610: } elsif ($remoteurl eq 'not_found') {
3611: #&logthis("Subscribe returned not_found: $filename");
3612: return 'not_found';
3613: } elsif ($remoteurl =~ /^rejected by/) {
3614: &logthis("Subscribe returned $remoteurl: $filename");
3615: return 'forbidden';
3616: } elsif ($remoteurl eq 'directory') {
3617: return 'ok';
3618: } else {
3619: my $author=$filename;
3620: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
3621: my ($udom,$uname)=split(/\//,$author);
3622: my $home=homeserver($uname,$udom);
3623: unless ($home eq $perlvar{'lonHostID'}) {
3624: my @parts=split(/\//,$filename);
3625: my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
3626: if ($path ne "$londocroot/res") {
3627: &logthis("Malconfiguration for replication: $filename");
3628: return 'bad_request';
3629: }
3630: my $count;
3631: for ($count=5;$count<$#parts;$count++) {
3632: $path.="/$parts[$count]";
3633: if ((-e $path)!=1) {
3634: mkdir($path,0777);
3635: }
3636: }
3637: my $request=new HTTP::Request('GET',"$remoteurl");
3638: my $response;
3639: if ($remoteurl =~ m{/raw/}) {
3640: $response=&LONCAPA::LWPReq::makerequest($home,$request,$transname,\%perlvar,'',0,1);
3641: } else {
3642: $response=&LONCAPA::LWPReq::makerequest($home,$request,$transname,\%perlvar,'',1);
3643: }
3644: if ($response->is_error()) {
3645: unlink($transname);
3646: my $message=$response->status_line;
3647: &logthis("<font color=\"blue\">WARNING:"
3648: ." LWP get: $message: $filename</font>");
3649: return 'unavailable';
3650: } else {
3651: if ($remoteurl!~/\.meta$/) {
3652: my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
3653: my $mresponse;
3654: if ($remoteurl =~ m{/raw/}) {
3655: $mresponse = &LONCAPA::LWPReq::makerequest($home,$mrequest,$filename.'.meta',\%perlvar,'',0,1);
3656: } else {
3657: $mresponse = &LONCAPA::LWPReq::makerequest($home,$mrequest,$filename.'.meta',\%perlvar,'',1);
3658: }
3659: if ($mresponse->is_error()) {
3660: unlink($filename.'.meta');
3661: &logthis(
3662: "<font color=\"yellow\">INFO: No metadata: $filename</font>");
3663: }
3664: }
3665: rename($transname,$filename);
3666: return 'ok';
3667: }
3668: }
3669: }
3670: }
3671:
3672: # ------------------------------------------------- Unsubscribe from a resource
3673:
3674: sub unsubscribe {
3675: my ($fname) = @_;
3676: my $answer;
3677: if ($fname=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) { return $answer; }
3678: $fname=~s/[\n\r]//g;
3679: my $author=$fname;
3680: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
3681: my ($udom,$uname)=split(/\//,$author);
3682: my $home=homeserver($uname,$udom);
3683: if ($home eq 'no_host') {
3684: $answer = 'no_host';
3685: } elsif (grep { $_ eq $home } ¤t_machine_ids()) {
3686: $answer = 'home';
3687: } else {
3688: my $defdom = $perlvar{'lonDefDomain'};
3689: if (&will_trust('content',$defdom,$udom)) {
3690: $answer = reply("unsub:$fname",$home);
3691: } else {
3692: $answer = 'untrusted';
3693: }
3694: }
3695: return $answer;
3696: }
3697:
3698: # ------------------------------------------------ Get server side include body
3699: sub ssi_body {
3700: my ($filelink,%form)=@_;
3701: if (! exists($form{'LONCAPA_INTERNAL_no_discussion'})) {
3702: $form{'LONCAPA_INTERNAL_no_discussion'}='true';
3703: }
3704: my $output='';
3705: my $response;
3706: if ($filelink=~/^https?\:/) {
3707: ($output,$response)=&externalssi($filelink);
3708: } else {
3709: $filelink .= $filelink=~/\?/ ? '&' : '?';
3710: $filelink .= 'inhibitmenu=yes';
3711: ($output,$response)=&ssi($filelink,%form);
3712: }
3713: $output=~s|//(\s*<!--)? BEGIN LON-CAPA Internal.+?// END LON-CAPA Internal\s*(-->)?\s||gs;
3714: $output=~s/^.*?\<body[^\>]*\>//si;
3715: $output=~s/\<\/body\s*\>.*?$//si;
3716: if (wantarray) {
3717: return ($output, $response);
3718: } else {
3719: return $output;
3720: }
3721: }
3722:
3723: # --------------------------------------------------------- Server Side Include
3724:
3725: sub absolute_url {
3726: my ($host_name,$unalias,$keep_proto) = @_;
3727: my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://');
3728: if ($host_name eq '') {
3729: $host_name = $ENV{'SERVER_NAME'};
3730: }
3731: if ($unalias) {
3732: my $alias = &get_proxy_alias();
3733: if ($alias eq $host_name) {
3734: my $lonhost = $perlvar{'lonHostID'};
3735: my $hostname = &hostname($lonhost);
3736: my $lcproto;
3737: if (($keep_proto) || ($hostname eq '')) {
3738: $lcproto = $protocol;
3739: } else {
3740: $lcproto = $protocol{$lonhost};
3741: $lcproto = 'http' if ($lcproto ne 'https');
3742: $lcproto .= '://';
3743: }
3744: unless ($hostname eq '') {
3745: return $lcproto.$hostname;
3746: }
3747: }
3748: }
3749: return $protocol.$host_name;
3750: }
3751:
3752: #
3753: # Server side include.
3754: # Parameters:
3755: # fn Possibly encrypted resource name/id.
3756: # form Hash that describes how the rendering should be done
3757: # and other things.
3758: # Returns:
3759: # Scalar context: The content of the response.
3760: # Array context: 2 element list of the content and the full response object.
3761: #
3762: sub ssi {
3763:
3764: my ($fn,%form)=@_;
3765: my ($host,$request,$response);
3766: $host = &absolute_url('',1);
3767:
3768: $form{'no_update_last_known'}=1;
3769: &Apache::lonenc::check_encrypt(\$fn);
3770: if (%form) {
3771: $request=new HTTP::Request('POST',$host.$fn);
3772: $request->content(join('&',map {
3773: my $name = escape($_);
3774: "$name=" . ( ref($form{$_}) eq 'ARRAY'
3775: ? join("&$name=", map {escape($_) } @{$form{$_}})
3776: : &escape($form{$_}) );
3777: } keys(%form)));
3778: } else {
3779: $request=new HTTP::Request('GET',$host.$fn);
3780: }
3781:
3782: $request->header(Cookie => $ENV{'HTTP_COOKIE'});
3783: my $lonhost = $perlvar{'lonHostID'};
3784: my $islocal;
3785: if (($env{'request.course.id'}) &&
3786: ($form{'grade_courseid'} eq $env{'request.course.id'}) &&
3787: ($form{'grade_username'} ne '') && ($form{'grade_domain'} ne '') &&
3788: ($form{'grade_symb'} ne '') &&
3789: (&allowed('mgr',$env{'request.course.id'}.
3790: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')))) {
3791: $islocal = 1;
3792: }
3793: $response= &LONCAPA::LWPReq::makerequest($lonhost,$request,'',\%perlvar,
3794: '','','',$islocal);
3795:
3796: if (wantarray) {
3797: return ($response->content, $response);
3798: } else {
3799: return $response->content;
3800: }
3801: }
3802:
3803: sub externalssi {
3804: my ($url)=@_;
3805: my $request=new HTTP::Request('GET',$url);
3806: my $response = &LONCAPA::LWPReq::makerequest('',$request,'',\%perlvar);
3807: if (wantarray) {
3808: return ($response->content, $response);
3809: } else {
3810: return $response->content;
3811: }
3812: }
3813:
3814:
3815: # If the local copy of a replicated resource is outdated, trigger a
3816: # connection from the homeserver to flush the delayed queue. If no update
3817: # happens, remove local copies of outdated resource (and corresponding
3818: # metadata file).
3819:
3820: sub remove_stale_resfile {
3821: my ($url) = @_;
3822: my $removed;
3823: if ($url=~m{^/res/($match_domain)/($match_username)/}) {
3824: my $audom = $1;
3825: my $auname = $2;
3826: unless (($url =~ /\.\d+\.\w+$/) || ($url =~ m{^/res/lib/templates/})) {
3827: my $homeserver = &homeserver($auname,$audom);
3828: unless (($homeserver eq 'no_host') ||
3829: (grep { $_ eq $homeserver } ¤t_machine_ids())) {
3830: my $fname = &filelocation('',$url);
3831: if (-e $fname) {
3832: my $hostname = &hostname($homeserver);
3833: if ($hostname) {
3834: my $protocol = $protocol{$homeserver};
3835: $protocol = 'http' if ($protocol ne 'https');
3836: my $uri = &declutter($url);
3837: my $request=new HTTP::Request('HEAD',$protocol.'://'.$hostname.'/raw/'.$uri);
3838: my $response = &LONCAPA::LWPReq::makerequest($homeserver,$request,'',\%perlvar,5,0,1);
3839: if ($response->is_success()) {
3840: my $remmodtime = &HTTP::Date::str2time( $response->header('Last-modified') );
3841: my $locmodtime = (stat($fname))[9];
3842: if ($locmodtime < $remmodtime) {
3843: my $stale;
3844: my $answer = &reply('pong',$homeserver);
3845: if ($answer eq $homeserver.':'.$perlvar{'lonHostID'}) {
3846: sleep(0.2);
3847: $locmodtime = (stat($fname))[9];
3848: if ($locmodtime < $remmodtime) {
3849: my $posstransfer = $fname.'.in.transfer';
3850: if ((-e $posstransfer) && ($remmodtime < (stat($posstransfer))[9])) {
3851: $removed = 1;
3852: } else {
3853: $stale = 1;
3854: }
3855: } else {
3856: $removed = 1;
3857: }
3858: } else {
3859: $stale = 1;
3860: }
3861: if ($stale) {
3862: if (unlink($fname)) {
3863: if ($uri!~/\.meta$/) {
3864: if (-e $fname.'.meta') {
3865: unlink($fname.'.meta');
3866: }
3867: }
3868: my $unsubresult = &unsubscribe($fname);
3869: unless ($unsubresult eq 'ok') {
3870: &logthis("no unsub of $fname from $homeserver, reason: $unsubresult");
3871: }
3872: $removed = 1;
3873: }
3874: }
3875: }
3876: }
3877: }
3878: }
3879: }
3880: }
3881: }
3882: return $removed;
3883: }
3884:
3885: # -------------------------------- Allow a /uploaded/ URI to be vouched for
3886:
3887: sub allowuploaded {
3888: my ($srcurl,$url)=@_;
3889: $url=&clutter(&declutter($url));
3890: my $dir=$url;
3891: $dir=~s/\/[^\/]+$//;
3892: my %httpref=();
3893: my $httpurl=&hreflocation('',$url);
3894: $httpref{'httpref.'.$httpurl}=$srcurl;
3895: &Apache::lonnet::appenv(\%httpref);
3896: }
3897:
3898: #
3899: # Determine if the current user should be able to edit a particular resource,
3900: # when viewing in course context.
3901: # (a) When viewing resource used to determine if "Edit" item is included in
3902: # Functions.
3903: # (b) When displaying folder contents in course editor, used to determine if
3904: # "Edit" link will be displayed alongside resource.
3905: #
3906: # input: six args -- filename (decluttered), course number, course domain,
3907: # url, symb (if registered) and group (if this is a group
3908: # item -- e.g., bulletin board, group page etc.).
3909: # output: array of five scalars --
3910: # $cfile -- url for file editing if editable on current server
3911: # $home -- homeserver of resource (i.e., for author if published,
3912: # or course if uploaded.).
3913: # $switchserver -- 1 if server switch will be needed.
3914: # $forceedit -- 1 if icon/link should be to go to edit mode
3915: # $forceview -- 1 if icon/link should be to go to view mode
3916: #
3917:
3918: sub can_edit_resource {
3919: my ($file,$cnum,$cdom,$resurl,$symb,$group) = @_;
3920: my ($cfile,$home,$switchserver,$forceedit,$forceview,$uploaded,$incourse);
3921: #
3922: # For aboutme pages user can only edit his/her own.
3923: #
3924: if ($resurl =~ m{^/?adm/($match_domain)/($match_username)/aboutme$}) {
3925: my ($sdom,$sname) = ($1,$2);
3926: if (($sdom eq $env{'user.domain'}) && ($sname eq $env{'user.name'})) {
3927: $home = $env{'user.home'};
3928: $cfile = $resurl;
3929: if ($env{'form.forceedit'}) {
3930: $forceview = 1;
3931: } else {
3932: $forceedit = 1;
3933: }
3934: return ($cfile,$home,$switchserver,$forceedit,$forceview);
3935: } else {
3936: return;
3937: }
3938: }
3939:
3940: #
3941: # For /adm/viewcoauthors can only edit if author or co-author who is manager.
3942: #
3943:
3944: if (($resurl eq '/adm/viewcoauthors') && ($cnum ne '') && ($cdom ne '')) {
3945: if (((&allowed('cca',"$cdom/$cnum")) ||
3946: (&allowed('caa',"$cdom/$cnum"))) ||
3947: ((&allowed('vca',"$cdom/$cnum") ||
3948: &allowed('vaa',"$cdom/$cnum")) &&
3949: ($env{"environment.internal.manager./$cdom/$cnum"}))) {
3950: $home = $env{'user.home'};
3951: $cfile = $resurl;
3952: if ($env{'form.forceedit'}) {
3953: $forceview = 1;
3954: } else {
3955: $forceedit = 1;
3956: }
3957: return ($cfile,$home,$switchserver,$forceedit,$forceview);
3958: } else {
3959: return;
3960: }
3961: }
3962:
3963: if ($env{'request.course.id'}) {
3964: my $crsedit = &allowed('mdc',$env{'request.course.id'});
3965: if ($group ne '') {
3966: # if this is a group homepage or group bulletin board, check group privs
3967: my $allowed = 0;
3968: if ($resurl =~ m{^/?adm/$cdom/$cnum/$group/smppg$}) {
3969: if ((&allowed('mdg',$env{'request.course.id'}.
3970: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) ||
3971: (&allowed('mgh',$env{'request.course.id'}.'/'.$group)) || $crsedit) {
3972: $allowed = 1;
3973: }
3974: } elsif ($resurl =~ m{^/?adm/$cdom/$cnum/\d+/bulletinboard$}) {
3975: if ((&allowed('mdg',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) ||
3976: (&allowed('cgb',$env{'request.course.id'}.'/'.$group)) || $crsedit) {
3977: $allowed = 1;
3978: }
3979: }
3980: if ($allowed) {
3981: $home=&homeserver($cnum,$cdom);
3982: if ($env{'form.forceedit'}) {
3983: $forceview = 1;
3984: } else {
3985: $forceedit = 1;
3986: }
3987: $cfile = $resurl;
3988: } else {
3989: return;
3990: }
3991: } else {
3992: if ($resurl =~ m{^/?adm/viewclasslist$}) {
3993: unless (&allowed('opa',$env{'request.course.id'})) {
3994: return;
3995: }
3996: } elsif (!$crsedit) {
3997: if ($env{'request.role'} =~ m{^st\./$cdom/$cnum}) {
3998: #
3999: # No edit allowed where CC has switched to student role.
4000: #
4001: return;
4002: } elsif (($resurl !~ m{^/res/$match_domain/$match_username/}) ||
4003: ($resurl =~ m{^/res/lib/templates/})) {
4004: return;
4005: }
4006: }
4007: }
4008: }
4009:
4010: if ($file ne '') {
4011: if (($cnum =~ /$match_courseid/) && ($cdom =~ /$match_domain/)) {
4012: if (&is_course_upload($file,$cnum,$cdom)) {
4013: $uploaded = 1;
4014: $incourse = 1;
4015: if ($file =~/\.(htm|html|css|js|txt)$/) {
4016: $cfile = &hreflocation('',$file);
4017: if ($env{'form.forceedit'}) {
4018: $forceview = 1;
4019: } else {
4020: $forceedit = 1;
4021: }
4022: }
4023: } elsif ($resurl =~ m{^/public/$cdom/$cnum/syllabus}) {
4024: $incourse = 1;
4025: if ($env{'form.forceedit'}) {
4026: $forceview = 1;
4027: } else {
4028: $forceedit = 1;
4029: }
4030: $cfile = $resurl;
4031: } elsif (($resurl ne '') && (&is_on_map($resurl))) {
4032: if ($resurl =~ m{^/adm/$match_domain/$match_username/\d+/smppg|bulletinboard$}) {
4033: $incourse = 1;
4034: if ($env{'form.forceedit'}) {
4035: $forceview = 1;
4036: } else {
4037: $forceedit = 1;
4038: }
4039: $cfile = $resurl;
4040: } elsif ($resurl eq '/res/lib/templates/simpleproblem.problem') {
4041: $incourse = 1;
4042: $cfile = $resurl.'/smpedit';
4043: } elsif ($resurl =~ m{^/adm/wrapper/ext/}) {
4044: $incourse = 1;
4045: if ($env{'form.forceedit'}) {
4046: $forceview = 1;
4047: } else {
4048: $forceedit = 1;
4049: }
4050: $cfile = $resurl;
4051: } elsif (($resurl =~ m{^/ext/}) && ($symb ne '')) {
4052: my ($map,$id,$res) = &decode_symb($symb);
4053: if ($map =~ /\.page$/) {
4054: $incourse = 1;
4055: if ($env{'form.forceedit'}) {
4056: $forceview = 1;
4057: $cfile = $map;
4058: } else {
4059: $forceedit = 1;
4060: $cfile = '/adm/wrapper'.$resurl;
4061: }
4062: }
4063: } elsif ($resurl =~ m{^/adm/wrapper/adm/$cdom/$cnum/\d+/ext\.tool$}) {
4064: $incourse = 1;
4065: if ($env{'form.forceedit'}) {
4066: $forceview = 1;
4067: } else {
4068: $forceedit = 1;
4069: }
4070: $cfile = $resurl;
4071: } elsif ($resurl =~ m{^/?adm/viewclasslist$}) {
4072: $incourse = 1;
4073: if ($env{'form.forceedit'}) {
4074: $forceview = 1;
4075: } else {
4076: $forceedit = 1;
4077: }
4078: $cfile = ($resurl =~ m{^/} ? $resurl : "/$resurl");
4079: }
4080: } elsif ($resurl eq '/res/lib/templates/simpleproblem.problem/smpedit') {
4081: my $template = '/res/lib/templates/simpleproblem.problem';
4082: if (&is_on_map($template)) {
4083: $incourse = 1;
4084: $forceview = 1;
4085: $cfile = $template;
4086: }
4087: } elsif (($resurl =~ m{^/adm/wrapper/ext/}) && ($env{'form.folderpath'} =~ /^supplemental/)) {
4088: $incourse = 1;
4089: if ($env{'form.forceedit'}) {
4090: $forceview = 1;
4091: } else {
4092: $forceedit = 1;
4093: }
4094: $cfile = $resurl;
4095: } elsif (($resurl =~ m{^/adm/wrapper/adm/$cdom/$cnum/\d+/ext\.tool$}) && ($env{'form.folderpath'} =~ /^supplemental/)) {
4096: $incourse = 1;
4097: if ($env{'form.forceedit'}) {
4098: $forceview = 1;
4099: } else {
4100: $forceedit = 1;
4101: }
4102: $cfile = $resurl;
4103: } elsif (($resurl eq '/adm/extresedit') && ($symb || $env{'form.folderpath'})) {
4104: $incourse = 1;
4105: $forceview = 1;
4106: if ($symb) {
4107: my ($map,$id,$res)=&decode_symb($symb);
4108: $env{'request.symb'} = $symb;
4109: $cfile = &clutter($res);
4110: } else {
4111: $cfile = $env{'form.suppurl'};
4112: my $escfile = &unescape($cfile);
4113: if ($escfile =~ m{^/adm/$cdom/$cnum/\d+/ext\.tool$}) {
4114: $cfile = '/adm/wrapper'.$escfile;
4115: } else {
4116: $escfile =~ s{^http://}{};
4117: $cfile = &escape("/adm/wrapper/ext/$escfile");
4118: }
4119: }
4120: } elsif ($resurl =~ m{^/?adm/viewclasslist$}) {
4121: if ($env{'form.forceedit'}) {
4122: $forceview = 1;
4123: } else {
4124: $forceedit = 1;
4125: }
4126: $cfile = ($resurl =~ m{^/} ? $resurl : "/$resurl");
4127: }
4128: }
4129: if ($uploaded || $incourse) {
4130: $home=&homeserver($cnum,$cdom);
4131: } elsif ($file !~ m{/$}) {
4132: $file=~s{^(priv/$match_domain/$match_username)}{/$1};
4133: $file=~s{^($match_domain/$match_username)}{/priv/$1};
4134: # Check that the user has permission to edit this resource
4135: my $setpriv = 1;
4136: my ($cfuname,$cfudom)=&constructaccess($file,$setpriv);
4137: if (defined($cfudom)) {
4138: $home=&homeserver($cfuname,$cfudom);
4139: $cfile=$file;
4140: }
4141: }
4142: if (($cfile ne '') && (!$incourse || $uploaded) &&
4143: (($home ne '') && ($home ne 'no_host'))) {
4144: my @ids=¤t_machine_ids();
4145: unless (grep(/^\Q$home\E$/,@ids)) {
4146: $switchserver=1;
4147: }
4148: }
4149: }
4150: return ($cfile,$home,$switchserver,$forceedit,$forceview);
4151: }
4152:
4153: sub is_course_upload {
4154: my ($file,$cnum,$cdom) = @_;
4155: my $uploadpath = &LONCAPA::propath($cdom,$cnum);
4156: $uploadpath =~ s{^\/}{};
4157: if (($file =~ m{^\Q$uploadpath\E/userfiles/(docs|supplemental)/}) ||
4158: ($file =~ m{^userfiles/\Q$cdom\E/\Q$cnum\E/(docs|supplemental)/})) {
4159: return 1;
4160: }
4161: return;
4162: }
4163:
4164: sub in_course {
4165: my ($udom,$uname,$cdom,$cnum,$type,$hideprivileged) = @_;
4166: if ($hideprivileged) {
4167: my $skipuser;
4168: my %coursehash = &coursedescription($cdom.'_'.$cnum);
4169: my @possdoms = ($cdom);
4170: if ($coursehash{'checkforpriv'}) {
4171: push(@possdoms,split(/,/,$coursehash{'checkforpriv'}));
4172: }
4173: if (&privileged($uname,$udom,\@possdoms)) {
4174: $skipuser = 1;
4175: if ($coursehash{'nothideprivileged'}) {
4176: foreach my $item (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
4177: my $user;
4178: if ($item =~ /:/) {
4179: $user = $item;
4180: } else {
4181: $user = join(':',split(/[\@]/,$item));
4182: }
4183: if ($user eq $uname.':'.$udom) {
4184: undef($skipuser);
4185: last;
4186: }
4187: }
4188: }
4189: if ($skipuser) {
4190: return 0;
4191: }
4192: }
4193: }
4194: $type ||= 'any';
4195: if (!defined($cdom) || !defined($cnum)) {
4196: my $cid = $env{'request.course.id'};
4197: $cdom = $env{'course.'.$cid.'.domain'};
4198: $cnum = $env{'course.'.$cid.'.num'};
4199: }
4200: my $typesref;
4201: if (($type eq 'any') || ($type eq 'all')) {
4202: $typesref = ['active','previous','future'];
4203: } elsif ($type eq 'previous' || $type eq 'future') {
4204: $typesref = [$type];
4205: }
4206: my %roles = &get_my_roles($uname,$udom,'userroles',
4207: $typesref,undef,[$cdom]);
4208: my ($tmp) = keys(%roles);
4209: return 0 if ($tmp =~ /^(con_lost|error|no_such_host)/i);
4210: my @course_roles = grep(/^\Q$cnum\E:\Q$cdom\E:/, keys(%roles));
4211: if (@course_roles > 0) {
4212: return 1;
4213: }
4214: return 0;
4215: }
4216:
4217: # --------- File operations in /home/httpd/html/userfiles/$domain/1/2/3/$course
4218: # input: action, courseID, current domain, intended
4219: # path to file, source of file, instruction to parse file for objects,
4220: # ref to hash for embedded objects,
4221: # ref to hash for codebase of java objects.
4222: # reference to scalar to accommodate mime type determined
4223: # from File::MMagic if $parser = parse.
4224: #
4225: # output: url to file (if action was uploaddoc),
4226: # ok if successful, or diagnostic message otherwise (if action was propagate or copy)
4227: #
4228: # Allows directory structure to be used within lonUsers/../userfiles/ for a
4229: # course.
4230: #
4231: # action = propagate - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
4232: # will be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles in
4233: # course's home server.
4234: #
4235: # action = copy - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file will
4236: # be copied from $source (current location) to
4237: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
4238: # and will then be copied to
4239: # /home/httpd/lonUsers/$domain/1/2/3/$course/userfiles/$file in
4240: # course's home server.
4241: #
4242: # action = uploaddoc - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
4243: # will be retrived from $env{form.uploaddoc} (from DOCS interface) to
4244: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
4245: # and will then be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles/$file
4246: # in course's home server.
4247: #
4248:
4249: sub process_coursefile {
4250: my ($action,$docuname,$docudom,$file,$source,$parser,$allfiles,$codebase,
4251: $mimetype)=@_;
4252: my $fetchresult;
4253: my $home=&homeserver($docuname,$docudom);
4254: if ($action eq 'propagate') {
4255: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
4256: $home);
4257: } else {
4258: my $fpath = '';
4259: my $fname = $file;
4260: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
4261: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
4262: my $filepath = &build_filepath($fpath);
4263: if ($action eq 'copy') {
4264: if ($source eq '') {
4265: $fetchresult = 'no source file';
4266: return $fetchresult;
4267: } else {
4268: my $destination = $filepath.'/'.$fname;
4269: rename($source,$destination);
4270: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
4271: $home);
4272: }
4273: } elsif ($action eq 'uploaddoc') {
4274: open(my $fh,'>',$filepath.'/'.$fname);
4275: print $fh $env{'form.'.$source};
4276: close($fh);
4277: if ($parser eq 'parse') {
4278: my $mm = new File::MMagic;
4279: my $type = $mm->checktype_filename($filepath.'/'.$fname);
4280: if ($type eq 'text/html') {
4281: my $parse_result = &extract_embedded_items($filepath.'/'.$fname,$allfiles,$codebase);
4282: unless ($parse_result eq 'ok') {
4283: &logthis('Failed to parse '.$filepath.'/'.$fname.' for embedded media: '.$parse_result);
4284: }
4285: }
4286: if (ref($mimetype)) {
4287: $$mimetype = $type;
4288: }
4289: }
4290: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
4291: $home);
4292: if ($fetchresult eq 'ok') {
4293: return '/uploaded/'.$fpath.'/'.$fname;
4294: } else {
4295: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
4296: ' to host '.$home.': '.$fetchresult);
4297: return '/adm/notfound.html';
4298: }
4299: }
4300: }
4301: unless ( $fetchresult eq 'ok') {
4302: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
4303: ' to host '.$home.': '.$fetchresult);
4304: }
4305: return $fetchresult;
4306: }
4307:
4308: sub build_filepath {
4309: my ($fpath) = @_;
4310: my $filepath=$perlvar{'lonDocRoot'}.'/userfiles';
4311: unless ($fpath eq '') {
4312: my @parts=split('/',$fpath);
4313: foreach my $part (@parts) {
4314: $filepath.= '/'.$part;
4315: if ((-e $filepath)!=1) {
4316: mkdir($filepath,0777);
4317: }
4318: }
4319: }
4320: return $filepath;
4321: }
4322:
4323: sub store_edited_file {
4324: my ($primary_url,$content,$docudom,$docuname,$fetchresult) = @_;
4325: my $file = $primary_url;
4326: $file =~ s#^/uploaded/$docudom/$docuname/##;
4327: my $fpath = '';
4328: my $fname = $file;
4329: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
4330: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
4331: my $filepath = &build_filepath($fpath);
4332: open(my $fh,'>',$filepath.'/'.$fname);
4333: print $fh $content;
4334: close($fh);
4335: my $home=&homeserver($docuname,$docudom);
4336: $$fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
4337: $home);
4338: if ($$fetchresult eq 'ok') {
4339: return '/uploaded/'.$fpath.'/'.$fname;
4340: } else {
4341: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
4342: ' to host '.$home.': '.$$fetchresult);
4343: return '/adm/notfound.html';
4344: }
4345: }
4346:
4347: sub clean_filename {
4348: my ($fname,$args)=@_;
4349: # Replace Windows backslashes by forward slashes
4350: $fname=~s/\\/\//g;
4351: if (!$args->{'keep_path'}) {
4352: # Get rid of everything but the actual filename
4353: $fname=~s/^.*\/([^\/]+)$/$1/;
4354: }
4355: # Replace spaces by underscores
4356: $fname=~s/\s+/\_/g;
4357: # Transliterate non-ascii text to ascii
4358: my $lang = &Apache::lonlocal::current_language();
4359: $fname = &LONCAPA::transliterate::fname_to_ascii($fname,$lang);
4360: # Replace all other weird characters by nothing
4361: $fname=~s{[^/\w\.\-]}{}g;
4362: # Replace all .\d. sequences with _\d. so they no longer look like version
4363: # numbers
4364: $fname=~s/\.(\d+)(?=\.)/_$1/g;
4365: # Replace three or more adjacent underscores with one for consistency
4366: # with loncfile::filename_check() so complete url can be extracted by
4367: # lonnet::decode_symb()
4368: $fname=~s/_{3,}/_/g;
4369: return $fname;
4370: }
4371:
4372: # This Function checks if an Image's dimensions exceed either $resizewidth (width)
4373: # or $resizeheight (height) - both pixels. If so, the image is scaled to produce an
4374: # image with the same aspect ratio as the original, but with dimensions which do
4375: # not exceed $resizewidth and $resizeheight.
4376:
4377: sub resizeImage {
4378: my ($img_path,$resizewidth,$resizeheight) = @_;
4379: my $ima = Image::Magick->new;
4380: my $resized;
4381: if (-e $img_path) {
4382: $ima->Read($img_path);
4383: if (($resizewidth =~ /^\d+$/) && ($resizeheight > 0)) {
4384: my $width = $ima->Get('width');
4385: my $height = $ima->Get('height');
4386: if ($width > $resizewidth) {
4387: my $factor = $width/$resizewidth;
4388: my $newheight = $height/$factor;
4389: $ima->Scale(width=>$resizewidth,height=>$newheight);
4390: $resized = 1;
4391: }
4392: }
4393: if (($resizeheight =~ /^\d+$/) && ($resizeheight > 0)) {
4394: my $width = $ima->Get('width');
4395: my $height = $ima->Get('height');
4396: if ($height > $resizeheight) {
4397: my $factor = $height/$resizeheight;
4398: my $newwidth = $width/$factor;
4399: $ima->Scale(width=>$newwidth,height=>$resizeheight);
4400: $resized = 1;
4401: }
4402: }
4403: if ($resized) {
4404: $ima->Write($img_path);
4405: }
4406: }
4407: return;
4408: }
4409:
4410: # --------------- Take an uploaded file and put it into the userfiles directory
4411: # input: $formname - the contents of the file are in $env{"form.$formname"}
4412: # the desired filename is in $env{"form.$formname.filename"}
4413: # $context - possible values: coursedoc, existingfile, overwrite,
4414: # canceloverwrite, scantron, toollogo or ''.
4415: # if 'coursedoc': upload to the current course
4416: # if 'existingfile': write file to tmp/overwrites directory
4417: # if 'canceloverwrite': delete file written to tmp/overwrites directory
4418: # $context is passed as argument to &finishuserfileupload
4419: # $subdir - directory in userfile to store the file into
4420: # $parser - instruction to parse file for objects ($parser = parse) or
4421: # if context is 'scantron', $parser is hashref of csv column mapping
4422: # (e.g.,{ PaperID => 0, LastName => 1, FirstName => 2, ID => 3,
4423: # Section => 4, CODE => 5, FirstQuestion => 9 }).
4424: # $allfiles - reference to hash for embedded objects
4425: # $codebase - reference to hash for codebase of java objects
4426: # $destuname - username for permanent storage of uploaded file
4427: # $destudom - domain for permanaent storage of uploaded file
4428: # $thumbwidth - width (pixels) of thumbnail to make for uploaded image
4429: # $thumbheight - height (pixels) of thumbnail to make for uploaded image
4430: # $resizewidth - width (pixels) to which to resize uploaded image
4431: # $resizeheight - height (pixels) to which to resize uploaded image
4432: # $mimetype - reference to scalar to accommodate mime type determined
4433: # from File::MMagic.
4434: #
4435: # output: url of file in userspace, or error: <message>
4436: # or /adm/notfound.html if failure to upload occurse
4437:
4438: sub userfileupload {
4439: my ($formname,$context,$subdir,$parser,$allfiles,$codebase,$destuname,
4440: $destudom,$thumbwidth,$thumbheight,$resizewidth,$resizeheight,$mimetype)=@_;
4441: if (!defined($subdir)) { $subdir='unknown'; }
4442: my $fname=$env{'form.'.$formname.'.filename'};
4443: $fname=&clean_filename($fname);
4444: # See if there is anything left
4445: unless ($fname) { return 'error: no uploaded file'; }
4446: # If filename now begins with a . prepend unix timestamp _ milliseconds
4447: if ($fname =~ /^\./) {
4448: my ($s,$usec) = &gettimeofday();
4449: while (length($usec) < 6) {
4450: $usec = '0'.$usec;
4451: }
4452: $fname = $s.'_'.substr($usec,0,3).$fname;
4453: }
4454: # Files uploaded to help request form, or uploaded to "create course" page are handled differently
4455: if ((($formname eq 'screenshot') && ($subdir eq 'helprequests')) ||
4456: (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) ||
4457: ($context eq 'existingfile') || ($context eq 'canceloverwrite')) {
4458: my $now = time;
4459: my $filepath;
4460: if (($formname eq 'screenshot') && ($subdir eq 'helprequests')) {
4461: $filepath = 'tmp/helprequests/'.$now;
4462: } elsif (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) {
4463: $filepath = 'tmp/addcourse/'.$destudom.'/web/'.$env{'user.name'}.
4464: '_'.$env{'user.domain'}.'/pending';
4465: } elsif (($context eq 'existingfile') || ($context eq 'canceloverwrite')) {
4466: my ($docuname,$docudom);
4467: if ($destudom =~ /^$match_domain$/) {
4468: $docudom = $destudom;
4469: } else {
4470: $docudom = $env{'user.domain'};
4471: }
4472: if ($destuname =~ /^$match_username$/) {
4473: $docuname = $destuname;
4474: } else {
4475: $docuname = $env{'user.name'};
4476: }
4477: if (exists($env{'form.group'})) {
4478: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
4479: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
4480: }
4481: $filepath = 'tmp/overwrites/'.$docudom.'/'.$docuname.'/'.$subdir;
4482: if ($context eq 'canceloverwrite') {
4483: my $tempfile = $perlvar{'lonDaemons'}.'/'.$filepath.'/'.$fname;
4484: if (-e $tempfile) {
4485: my @info = stat($tempfile);
4486: if ($info[9] eq $env{'form.timestamp'}) {
4487: unlink($tempfile);
4488: }
4489: }
4490: return;
4491: }
4492: }
4493: # Create the directory if not present
4494: my @parts=split(/\//,$filepath);
4495: my $fullpath = $perlvar{'lonDaemons'};
4496: for (my $i=0;$i<@parts;$i++) {
4497: $fullpath .= '/'.$parts[$i];
4498: if ((-e $fullpath)!=1) {
4499: mkdir($fullpath,0777);
4500: }
4501: }
4502: open(my $fh,'>',$fullpath.'/'.$fname);
4503: print $fh $env{'form.'.$formname};
4504: close($fh);
4505: if ($context eq 'existingfile') {
4506: my @info = stat($fullpath.'/'.$fname);
4507: return ($fullpath.'/'.$fname,$info[9]);
4508: } else {
4509: return $fullpath.'/'.$fname;
4510: }
4511: }
4512: if ($subdir eq 'scantron') {
4513: $fname = 'scantron_orig_'.$fname;
4514: } else {
4515: $fname="$subdir/$fname";
4516: }
4517: if ($context eq 'coursedoc') {
4518: my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
4519: my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
4520: if ($env{'form.folder'} =~ m/^(default|supplemental)/) {
4521: return &finishuserfileupload($docuname,$docudom,
4522: $formname,$fname,$parser,$allfiles,
4523: $codebase,$thumbwidth,$thumbheight,
4524: $resizewidth,$resizeheight,$context,$mimetype);
4525: } else {
4526: if ($env{'form.folder'}) {
4527: $fname=$env{'form.folder'}.'/'.$fname;
4528: }
4529: return &process_coursefile('uploaddoc',$docuname,$docudom,
4530: $fname,$formname,$parser,
4531: $allfiles,$codebase,$mimetype);
4532: }
4533: } elsif (defined($destuname)) {
4534: my $docuname=$destuname;
4535: my $docudom=$destudom;
4536: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
4537: $parser,$allfiles,$codebase,
4538: $thumbwidth,$thumbheight,
4539: $resizewidth,$resizeheight,$context,$mimetype);
4540: } else {
4541: my $docuname=$env{'user.name'};
4542: my $docudom=$env{'user.domain'};
4543: if ((exists($env{'form.group'})) || ($context eq 'syllabus')) {
4544: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
4545: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
4546: }
4547: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
4548: $parser,$allfiles,$codebase,
4549: $thumbwidth,$thumbheight,
4550: $resizewidth,$resizeheight,$context,$mimetype);
4551: }
4552: }
4553:
4554: sub finishuserfileupload {
4555: my ($docuname,$docudom,$formname,$fname,$parser,$allfiles,$codebase,
4556: $thumbwidth,$thumbheight,$resizewidth,$resizeheight,$context,$mimetype) = @_;
4557: my $path=$docudom.'/'.$docuname.'/';
4558: my $filepath=$perlvar{'lonDocRoot'};
4559:
4560: my ($fnamepath,$file,$fetchthumb);
4561: $file=$fname;
4562: if ($fname=~m|/|) {
4563: ($fnamepath,$file) = ($fname =~ m|^(.*)/([^/]+)$|);
4564: $path.=$fnamepath.'/';
4565: }
4566: my @parts=split(/\//,$filepath.'/userfiles/'.$path);
4567: my $count;
4568: for ($count=4;$count<=$#parts;$count++) {
4569: $filepath.="/$parts[$count]";
4570: if ((-e $filepath)!=1) {
4571: mkdir($filepath,0777);
4572: }
4573: }
4574:
4575: # Save the file
4576: {
4577: if (!open(FH,'>',$filepath.'/'.$file)) {
4578: &logthis('Failed to create '.$filepath.'/'.$file);
4579: print STDERR ('Failed to create '.$filepath.'/'.$file."\n");
4580: return '/adm/notfound.html';
4581: }
4582: if ($context eq 'overwrite') {
4583: my $source = LONCAPA::tempdir().'/overwrites/'.$docudom.'/'.$docuname.'/'.$fname;
4584: my $target = $filepath.'/'.$file;
4585: if (-e $source) {
4586: my @info = stat($source);
4587: if ($info[9] eq $env{'form.timestamp'}) {
4588: unless (&File::Copy::move($source,$target)) {
4589: &logthis('Failed to overwrite '.$filepath.'/'.$file);
4590: return "Moving from $source failed";
4591: }
4592: } else {
4593: return "Temporary file: $source had unexpected date/time for last modification";
4594: }
4595: } else {
4596: return "Temporary file: $source missing";
4597: }
4598: } elsif (!print FH ($env{'form.'.$formname})) {
4599: &logthis('Failed to write to '.$filepath.'/'.$file);
4600: print STDERR ('Failed to write to '.$filepath.'/'.$file."\n");
4601: return '/adm/notfound.html';
4602: }
4603: close(FH);
4604: if ($resizewidth && $resizeheight) {
4605: my $mm = new File::MMagic;
4606: my $mime_type = $mm->checktype_filename($filepath.'/'.$file);
4607: if ($mime_type =~ m{^image/}) {
4608: &resizeImage($filepath.'/'.$file,$resizewidth,$resizeheight);
4609: }
4610: }
4611: }
4612: if (($context eq 'coursedoc') || ($parser eq 'parse')) {
4613: if (ref($mimetype)) {
4614: if ($$mimetype eq '') {
4615: my $mm = new File::MMagic;
4616: my $type = $mm->checktype_filename($filepath.'/'.$file);
4617: $$mimetype = $type;
4618: }
4619: }
4620: }
4621: if (($context ne 'scantron') && ($parser eq 'parse')) {
4622: if ((ref($mimetype)) && ($$mimetype eq 'text/html')) {
4623: my $parse_result = &extract_embedded_items($filepath.'/'.$file,
4624: $allfiles,$codebase);
4625: unless ($parse_result eq 'ok') {
4626: &logthis('Failed to parse '.$filepath.$file.
4627: ' for embedded media: '.$parse_result);
4628: }
4629: }
4630: } elsif (($context eq 'scantron') && (ref($parser) eq 'HASH')) {
4631: my $format = $env{'form.scantron_format'};
4632: &bubblesheet_converter($docudom,$filepath.'/'.$file,$parser,$format);
4633: }
4634: if (($thumbwidth =~ /^\d+$/) && ($thumbheight =~ /^\d+$/)) {
4635: my $input = $filepath.'/'.$file;
4636: my $output = $filepath.'/'.'tn-'.$file;
4637: my $makethumb;
4638: my $thumbsize = $thumbwidth.'x'.$thumbheight;
4639: if ($context eq 'toollogo') {
4640: my ($fullwidth,$fullheight) = &check_dimensions($input);
4641: if ($fullwidth ne '' && $fullheight ne '') {
4642: if ($fullwidth > $thumbwidth && $fullheight > $thumbheight) {
4643: $makethumb = 1;
4644: }
4645: }
4646: } else {
4647: $makethumb = 1;
4648: }
4649: if ($makethumb) {
4650: my @args = ('convert','-sample',$thumbsize,$input,$output);
4651: system({$args[0]} @args);
4652: if (-e $filepath.'/'.'tn-'.$file) {
4653: $fetchthumb = 1;
4654: }
4655: }
4656: }
4657:
4658: # Notify homeserver to grep it
4659: #
4660: my $docuhome=&homeserver($docuname,$docudom);
4661: my $fetchresult= &reply('fetchuserfile:'.$path.$file,$docuhome);
4662: if ($fetchresult eq 'ok') {
4663: if ($fetchthumb) {
4664: my $thumbresult= &reply('fetchuserfile:'.$path.'tn-'.$file,$docuhome);
4665: if ($thumbresult ne 'ok') {
4666: &logthis('Failed to transfer '.$path.'tn-'.$file.' to host '.
4667: $docuhome.': '.$thumbresult);
4668: }
4669: }
4670: #
4671: # Return the URL to it
4672: return '/uploaded/'.$path.$file;
4673: } else {
4674: &logthis('Failed to transfer '.$path.$file.' to host '.$docuhome.
4675: ': '.$fetchresult);
4676: return '/adm/notfound.html';
4677: }
4678: }
4679:
4680: sub extract_embedded_items {
4681: my ($fullpath,$allfiles,$codebase,$content) = @_;
4682: my @state = ();
4683: my (%lastids,%related,%shockwave,%flashvars);
4684: my %javafiles = (
4685: codebase => '',
4686: code => '',
4687: archive => ''
4688: );
4689: my %mediafiles = (
4690: src => '',
4691: movie => '',
4692: );
4693: my $p;
4694: if ($content) {
4695: $p = HTML::LCParser->new($content);
4696: } else {
4697: $p = HTML::LCParser->new($fullpath);
4698: }
4699: while (my $t=$p->get_token()) {
4700: if ($t->[0] eq 'S') {
4701: my ($tagname, $attr) = ($t->[1],$t->[2]);
4702: push(@state, $tagname);
4703: if (lc($tagname) eq 'allow') {
4704: &add_filetype($allfiles,$attr->{'src'},'src');
4705: }
4706: if (lc($tagname) eq 'img') {
4707: &add_filetype($allfiles,$attr->{'src'},'src');
4708: }
4709: if (lc($tagname) eq 'a') {
4710: unless (($attr->{'href'} =~ /^#/) || ($attr->{'href'} eq '')) {
4711: &add_filetype($allfiles,$attr->{'href'},'href');
4712: }
4713: }
4714: if (lc($tagname) eq 'script') {
4715: my $src;
4716: if ($attr->{'archive'} =~ /\.jar$/i) {
4717: &add_filetype($allfiles,$attr->{'archive'},'archive');
4718: } else {
4719: if ($attr->{'src'} ne '') {
4720: $src = $attr->{'src'};
4721: &add_filetype($allfiles,$src,'src');
4722: }
4723: }
4724: my $text = $p->get_trimmed_text();
4725: if ($text =~ /\Qswfobject.registerObject(\E([^\)]+)\)/) {
4726: my @swfargs = split(/,/,$1);
4727: foreach my $item (@swfargs) {
4728: $item =~ s/["']//g;
4729: $item =~ s/^\s+//;
4730: $item =~ s/\s+$//;
4731: }
4732: if (($swfargs[0] ne'') && ($swfargs[2] ne '')) {
4733: if (ref($related{$swfargs[0]}) eq 'ARRAY') {
4734: push(@{$related{$swfargs[0]}},$swfargs[2]);
4735: } else {
4736: $related{$swfargs[0]} = [$swfargs[2]];
4737: }
4738: }
4739: }
4740: }
4741: if (lc($tagname) eq 'link') {
4742: if (lc($attr->{'rel'}) eq 'stylesheet') {
4743: &add_filetype($allfiles,$attr->{'href'},'href');
4744: }
4745: }
4746: if (lc($tagname) eq 'object' ||
4747: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')) {
4748: foreach my $item (keys(%javafiles)) {
4749: $javafiles{$item} = '';
4750: }
4751: if ((lc($tagname) eq 'object') && (lc($state[-2]) ne 'object')) {
4752: $lastids{lc($tagname)} = $attr->{'id'};
4753: }
4754: }
4755: if (lc($state[-2]) eq 'object' && lc($tagname) eq 'param') {
4756: my $name = lc($attr->{'name'});
4757: foreach my $item (keys(%javafiles)) {
4758: if ($name eq $item) {
4759: $javafiles{$item} = $attr->{'value'};
4760: last;
4761: }
4762: }
4763: my $pathfrom;
4764: foreach my $item (keys(%mediafiles)) {
4765: if ($name eq $item) {
4766: $pathfrom = $attr->{'value'};
4767: $shockwave{$lastids{lc($state[-2])}} = $pathfrom;
4768: &add_filetype($allfiles,$pathfrom,$name);
4769: last;
4770: }
4771: }
4772: if ($name eq 'flashvars') {
4773: $flashvars{$lastids{lc($state[-2])}} = $attr->{'value'};
4774: }
4775: if ($pathfrom ne '') {
4776: &embedded_dependency($allfiles,\%related,$lastids{lc($state[-2])},
4777: $pathfrom);
4778: }
4779: }
4780: if (lc($tagname) eq 'embed' || lc($tagname) eq 'applet') {
4781: foreach my $item (keys(%javafiles)) {
4782: if ($attr->{$item}) {
4783: $javafiles{$item} = $attr->{$item};
4784: last;
4785: }
4786: }
4787: foreach my $item (keys(%mediafiles)) {
4788: if ($attr->{$item}) {
4789: &add_filetype($allfiles,$attr->{$item},$item);
4790: last;
4791: }
4792: }
4793: if (lc($tagname) eq 'embed') {
4794: if (($attr->{'name'} ne '') && ($attr->{'src'} ne '')) {
4795: &embedded_dependency($allfiles,\%related,$attr->{'name'},
4796: $attr->{'src'});
4797: }
4798: }
4799: }
4800: if (lc($tagname) eq 'iframe') {
4801: my $src = $attr->{'src'} ;
4802: if (($src ne '') && ($src !~ m{^(/|https?://)})) {
4803: &add_filetype($allfiles,$src,'src');
4804: } elsif ($src =~ m{^/}) {
4805: if ($env{'request.course.id'}) {
4806: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
4807: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
4808: my $url = &hreflocation('',$fullpath);
4809: if ($url =~ m{^/uploaded/$cdom/$cnum/docs/(\w+/\d+)/}) {
4810: my $relpath = $1;
4811: if ($src =~ m{^/uploaded/$cdom/$cnum/docs/\Q$relpath\E/(.+)$}) {
4812: &add_filetype($allfiles,$1,'src');
4813: }
4814: }
4815: }
4816: }
4817: }
4818: if ($t->[4] =~ m{/>$}) {
4819: pop(@state);
4820: }
4821: } elsif ($t->[0] eq 'E') {
4822: my ($tagname) = ($t->[1]);
4823: if ($javafiles{'codebase'} ne '') {
4824: $javafiles{'codebase'} .= '/';
4825: }
4826: if (lc($tagname) eq 'applet' ||
4827: lc($tagname) eq 'object' ||
4828: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')
4829: ) {
4830: foreach my $item (keys(%javafiles)) {
4831: if ($item ne 'codebase' && $javafiles{$item} ne '') {
4832: my $file=$javafiles{'codebase'}.$javafiles{$item};
4833: &add_filetype($allfiles,$file,$item);
4834: }
4835: }
4836: }
4837: pop @state;
4838: }
4839: }
4840: foreach my $id (sort(keys(%flashvars))) {
4841: if ($shockwave{$id} ne '') {
4842: my @pairs = split(/\&/,$flashvars{$id});
4843: foreach my $pair (@pairs) {
4844: my ($key,$value) = split(/\=/,$pair);
4845: if ($key eq 'thumb') {
4846: &add_filetype($allfiles,$value,$key);
4847: } elsif ($key eq 'content') {
4848: my ($path) = ($shockwave{$id} =~ m{^(.+/)[^/]+$});
4849: my ($ext) = ($value =~ /\.([^.]+)$/);
4850: if ($ext ne '') {
4851: &add_filetype($allfiles,$path.$value,$ext);
4852: }
4853: }
4854: }
4855: }
4856: }
4857: return 'ok';
4858: }
4859:
4860: sub add_filetype {
4861: my ($allfiles,$file,$type)=@_;
4862: if (exists($allfiles->{$file})) {
4863: unless (grep/^\Q$type\E$/, @{$allfiles->{$file}}) {
4864: push(@{$allfiles->{$file}}, &escape($type));
4865: }
4866: } else {
4867: @{$allfiles->{$file}} = (&escape($type));
4868: }
4869: }
4870:
4871: sub embedded_dependency {
4872: my ($allfiles,$related,$identifier,$pathfrom) = @_;
4873: if ((ref($allfiles) eq 'HASH') && (ref($related) eq 'HASH')) {
4874: if (($identifier ne '') &&
4875: (ref($related->{$identifier}) eq 'ARRAY') &&
4876: ($pathfrom ne '')) {
4877: my ($path) = ($pathfrom =~ m{^(.+/)[^/]+$});
4878: foreach my $dep (@{$related->{$identifier}}) {
4879: &add_filetype($allfiles,$path.$dep,'object');
4880: }
4881: }
4882: }
4883: return;
4884: }
4885:
4886: sub check_dimensions {
4887: my ($inputfile) = @_;
4888: my ($fullwidth,$fullheight);
4889: if (($inputfile =~ m|^[/\w.\-]+$|) && (-e $inputfile)) {
4890: my $mm = new File::MMagic;
4891: my $mime_type = $mm->checktype_filename($inputfile);
4892: if ($mime_type =~ m{^image/}) {
4893: if (open(PIPE,"identify $inputfile 2>&1 |")) {
4894: my $imageinfo = <PIPE>;
4895: if (!close(PIPE)) {
4896: &Apache::lonnet::logthis("Failed to close PIPE opened to retrieve image information for $inputfile");
4897: }
4898: chomp($imageinfo);
4899: my ($fullsize) =
4900: ($imageinfo =~ /^\Q$inputfile\E\s+\w+\s+(\d+x\d+)/);
4901: if ($fullsize) {
4902: ($fullwidth,$fullheight) = split(/x/,$fullsize);
4903: }
4904: }
4905: }
4906: }
4907: return ($fullwidth,$fullheight);
4908: }
4909:
4910: sub bubblesheet_converter {
4911: my ($cdom,$fullpath,$config,$format) = @_;
4912: if ((&domain($cdom) ne '') &&
4913: ($fullpath =~ m{^\Q$perlvar{'lonDocRoot'}/userfiles/$cdom/\E$match_courseid/scantron_orig}) &&
4914: (-e $fullpath) && (ref($config) eq 'HASH') && ($format ne '')) {
4915: my (%csvcols,%csvoptions);
4916: if (ref($config->{'fields'}) eq 'HASH') {
4917: %csvcols = %{$config->{'fields'}};
4918: }
4919: if (ref($config->{'options'}) eq 'HASH') {
4920: %csvoptions = %{$config->{'options'}};
4921: }
4922: my %csvbynum = reverse(%csvcols);
4923: my %scantronconf = &get_scantron_config($format,$cdom);
4924: if (keys(%scantronconf)) {
4925: my %bynum = (
4926: $scantronconf{CODEstart} => 'CODEstart',
4927: $scantronconf{IDstart} => 'IDstart',
4928: $scantronconf{PaperID} => 'PaperID',
4929: $scantronconf{FirstName} => 'FirstName',
4930: $scantronconf{LastName} => 'LastName',
4931: $scantronconf{Qstart} => 'Qstart',
4932: );
4933: my @ordered;
4934: foreach my $item (sort { $a <=> $b } keys(%bynum)) {
4935: push(@ordered,$bynum{$item});
4936: }
4937: my %mapstart = (
4938: CODEstart => 'CODE',
4939: IDstart => 'ID',
4940: PaperID => 'PaperID',
4941: FirstName => 'FirstName',
4942: LastName => 'LastName',
4943: Qstart => 'FirstQuestion',
4944: );
4945: my %maplength = (
4946: CODEstart => 'CODElength',
4947: IDstart => 'IDlength',
4948: PaperID => 'PaperIDlength',
4949: FirstName => 'FirstNamelength',
4950: LastName => 'LastNamelength',
4951: );
4952: if (open(my $fh,'<',$fullpath)) {
4953: my $output;
4954: my %lettdig = &letter_to_digits();
4955: my %diglett = reverse(%lettdig);
4956: my $numletts = scalar(keys(%lettdig));
4957: my $num = 0;
4958: while (my $line=<$fh>) {
4959: $num ++;
4960: next if (($num == 1) && ($csvoptions{'hdr'} == 1));
4961: $line =~ s{[\r\n]+$}{};
4962: my %found;
4963: my @values = split(/,/,$line,-1);
4964: my ($qstart,$record);
4965: for (my $i=0; $i<@values; $i++) {
4966: if ((($qstart ne '') && ($i > $qstart)) ||
4967: ($csvbynum{$i} eq 'FirstQuestion')) {
4968: if ($values[$i] eq '') {
4969: $values[$i] = $scantronconf{'Qoff'};
4970: } elsif ($scantronconf{'Qon'} eq 'number') {
4971: if ($values[$i] =~ /^[A-Ja-j]$/) {
4972: $values[$i] = $lettdig{uc($values[$i])};
4973: }
4974: } elsif ($scantronconf{'Qon'} eq 'letter') {
4975: if ($values[$i] =~ /^[0-9]$/) {
4976: $values[$i] = $diglett{$values[$i]};
4977: }
4978: } else {
4979: if ($values[$i] =~ /^[0-9A-Ja-j]$/) {
4980: my $digit;
4981: if ($values[$i] =~ /^[A-Ja-j]$/) {
4982: $digit = $lettdig{uc($values[$i])}-1;
4983: if ($values[$i] eq 'J') {
4984: $digit += $numletts;
4985: }
4986: } elsif ($values[$i] =~ /^[0-9]$/) {
4987: $digit = $values[$i]-1;
4988: if ($values[$i] eq '0') {
4989: $digit += $numletts;
4990: }
4991: }
4992: my $qval='';
4993: for (my $j=0; $j<$scantronconf{'Qlength'}; $j++) {
4994: if ($j == $digit) {
4995: $qval .= $scantronconf{'Qon'};
4996: } else {
4997: $qval .= $scantronconf{'Qoff'};
4998: }
4999: }
5000: $values[$i] = $qval;
5001: }
5002: }
5003: if (length($values[$i]) > $scantronconf{'Qlength'}) {
5004: $values[$i] = substr($values[$i],0,$scantronconf{'Qlength'});
5005: }
5006: my $numblank = $scantronconf{'Qlength'} - length($values[$i]);
5007: if ($numblank > 0) {
5008: $values[$i] .= ($scantronconf{'Qoff'} x $numblank);
5009: }
5010: if ($csvbynum{$i} eq 'FirstQuestion') {
5011: $qstart = $i;
5012: $found{$csvbynum{$i}} = $values[$i];
5013: } else {
5014: $found{'FirstQuestion'} .= $values[$i];
5015: }
5016: } elsif (exists($csvbynum{$i})) {
5017: if ($csvoptions{'rem'}) {
5018: $values[$i] =~ s/^\s+//;
5019: }
5020: if (($csvbynum{$i} eq 'PaperID') && ($csvoptions{'pad'})) {
5021: while (length($values[$i]) < $scantronconf{$maplength{$csvbynum{$i}}}) {
5022: $values[$i] = '0'.$values[$i];
5023: }
5024: }
5025: $found{$csvbynum{$i}} = $values[$i];
5026: }
5027: }
5028: foreach my $item (@ordered) {
5029: my $currlength = 1+length($record);
5030: my $numspaces = $scantronconf{$item} - $currlength;
5031: if ($numspaces > 0) {
5032: $record .= (' ' x $numspaces);
5033: }
5034: if (($mapstart{$item} ne '') && (exists($found{$mapstart{$item}}))) {
5035: unless ($item eq 'Qstart') {
5036: if (length($found{$mapstart{$item}}) > $scantronconf{$maplength{$item}}) {
5037: $found{$mapstart{$item}} = substr($found{$mapstart{$item}},0,$scantronconf{$maplength{$item}});
5038: }
5039: }
5040: $record .= $found{$mapstart{$item}};
5041: }
5042: }
5043: $output .= "$record\n";
5044: }
5045: close($fh);
5046: if ($output) {
5047: if (open(my $fh,'>',$fullpath)) {
5048: print $fh $output;
5049: close($fh);
5050: }
5051: }
5052: }
5053: }
5054: return;
5055: }
5056: }
5057:
5058: sub letter_to_digits {
5059: my %lettdig = (
5060: A => 1,
5061: B => 2,
5062: C => 3,
5063: D => 4,
5064: E => 5,
5065: F => 6,
5066: G => 7,
5067: H => 8,
5068: I => 9,
5069: J => 0,
5070: );
5071: return %lettdig;
5072: }
5073:
5074: sub get_scantron_config {
5075: my ($which,$cdom) = @_;
5076: my @lines = &get_scantronformat_file($cdom);
5077: my %config;
5078: #FIXME probably should move to XML it has already gotten a bit much now
5079: foreach my $line (@lines) {
5080: my ($name,$descrip)=split(/:/,$line);
5081: if ($name ne $which ) { next; }
5082: chomp($line);
5083: my @config=split(/:/,$line);
5084: $config{'name'}=$config[0];
5085: $config{'description'}=$config[1];
5086: $config{'CODElocation'}=$config[2];
5087: $config{'CODEstart'}=$config[3];
5088: $config{'CODElength'}=$config[4];
5089: $config{'IDstart'}=$config[5];
5090: $config{'IDlength'}=$config[6];
5091: $config{'Qstart'}=$config[7];
5092: $config{'Qlength'}=$config[8];
5093: $config{'Qoff'}=$config[9];
5094: $config{'Qon'}=$config[10];
5095: $config{'PaperID'}=$config[11];
5096: $config{'PaperIDlength'}=$config[12];
5097: $config{'FirstName'}=$config[13];
5098: $config{'FirstNamelength'}=$config[14];
5099: $config{'LastName'}=$config[15];
5100: $config{'LastNamelength'}=$config[16];
5101: $config{'BubblesPerRow'}=$config[17];
5102: last;
5103: }
5104: return %config;
5105: }
5106:
5107: sub get_scantronformat_file {
5108: my ($cdom) = @_;
5109: if ($cdom eq '') {
5110: $cdom= $env{'course.'.$env{'request.course.id'}.'.domain'};
5111: }
5112: my %domconfig = &get_dom('configuration',['scantron'],$cdom);
5113: my $gottab = 0;
5114: my @lines;
5115: if (ref($domconfig{'scantron'}) eq 'HASH') {
5116: if ($domconfig{'scantron'}{'scantronformat'} ne '') {
5117: my $formatfile = &getfile($perlvar{'lonDocRoot'}.$domconfig{'scantron'}{'scantronformat'});
5118: if ($formatfile ne '-1') {
5119: @lines = split("\n",$formatfile,-1);
5120: $gottab = 1;
5121: }
5122: }
5123: }
5124: if (!$gottab) {
5125: my $confname = $cdom.'-domainconfig';
5126: my $default = $perlvar{'lonDocRoot'}.'/res/'.$cdom.'/'.$confname.'/default.tab';
5127: my $formatfile = &getfile($default);
5128: if ($formatfile ne '-1') {
5129: @lines = split("\n",$formatfile,-1);
5130: $gottab = 1;
5131: }
5132: }
5133: if (!$gottab) {
5134: my @domains = ¤t_machine_domains();
5135: if (grep(/^\Q$cdom\E$/,@domains)) {
5136: if (open(my $fh,'<',$perlvar{'lonTabDir'}.'/scantronformat.tab')) {
5137: @lines = <$fh>;
5138: close($fh);
5139: }
5140: } else {
5141: if (open(my $fh,'<',$perlvar{'lonTabDir'}.'/default_scantronformat.tab')) {
5142: @lines = <$fh>;
5143: close($fh);
5144: }
5145: }
5146: chomp(@lines);
5147: }
5148: return @lines;
5149: }
5150:
5151: sub removeuploadedurl {
5152: my ($url)=@_;
5153: my (undef,undef,$udom,$uname,$fname)=split('/',$url,5);
5154: return &removeuserfile($uname,$udom,$fname);
5155: }
5156:
5157: sub removeuserfile {
5158: my ($docuname,$docudom,$fname)=@_;
5159: my $home=&homeserver($docuname,$docudom);
5160: my $result = &reply("removeuserfile:$docudom/$docuname/$fname",$home);
5161: if ($result eq 'ok') {
5162: if (($fname !~ /\.meta$/) && (&is_portfolio_file($fname))) {
5163: my $metafile = $fname.'.meta';
5164: my $metaresult = &removeuserfile($docuname,$docudom,$metafile);
5165: my $url = "/uploaded/$docudom/$docuname/$fname";
5166: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
5167: my $sqlresult =
5168: &update_portfolio_table($docuname,$docudom,$file,
5169: 'portfolio_metadata',$group,
5170: 'delete');
5171: }
5172: }
5173: return $result;
5174: }
5175:
5176: sub mkdiruserfile {
5177: my ($docuname,$docudom,$dir)=@_;
5178: my $home=&homeserver($docuname,$docudom);
5179: return &reply("mkdiruserfile:".&escape("$docudom/$docuname/$dir"),$home);
5180: }
5181:
5182: sub renameuserfile {
5183: my ($docuname,$docudom,$old,$new)=@_;
5184: my $home=&homeserver($docuname,$docudom);
5185: my $result = &reply("renameuserfile:$docudom:$docuname:".
5186: &escape("$old").':'.&escape("$new"),$home);
5187: if ($result eq 'ok') {
5188: if (($old !~ /\.meta$/) && (&is_portfolio_file($old))) {
5189: my $oldmeta = $old.'.meta';
5190: my $newmeta = $new.'.meta';
5191: my $metaresult =
5192: &renameuserfile($docuname,$docudom,$oldmeta,$newmeta);
5193: my $url = "/uploaded/$docudom/$docuname/$old";
5194: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
5195: my $sqlresult =
5196: &update_portfolio_table($docuname,$docudom,$file,
5197: 'portfolio_metadata',$group,
5198: 'delete');
5199: }
5200: }
5201: return $result;
5202: }
5203:
5204: # ------------------------------------------------------------------------- Log
5205:
5206: sub log {
5207: my ($dom,$nam,$hom,$what)=@_;
5208: return critical("log:$dom:$nam:$what",$hom);
5209: }
5210:
5211: # ------------------------------------------------------------------ Course Log
5212: #
5213: # This routine flushes several buffers of non-mission-critical nature
5214: #
5215:
5216: sub flushcourselogs {
5217: &logthis('Flushing log buffers');
5218: #
5219: # course logs
5220: # This is a log of all transactions in a course, which can be used
5221: # for data mining purposes
5222: #
5223: # It also collects the courseid database, which lists last transaction
5224: # times and course titles for all courseids
5225: #
5226: my %courseidbuffer=();
5227: foreach my $crsid (keys(%courselogs)) {
5228: if (&reply('log:'.$coursedombuf{$crsid}.':'.$coursenumbuf{$crsid}.':'.
5229: &escape($courselogs{$crsid}),
5230: $coursehombuf{$crsid}) eq 'ok') {
5231: delete $courselogs{$crsid};
5232: } else {
5233: &logthis('Failed to flush log buffer for '.$crsid);
5234: if (length($courselogs{$crsid})>40000) {
5235: &logthis("<font color=\"blue\">WARNING: Buffer for ".$crsid.
5236: " exceeded maximum size, deleting.</font>");
5237: delete $courselogs{$crsid};
5238: }
5239: }
5240: $courseidbuffer{$coursehombuf{$crsid}}{$crsid} = {
5241: 'description' => $coursedescrbuf{$crsid},
5242: 'inst_code' => $courseinstcodebuf{$crsid},
5243: 'type' => $coursetypebuf{$crsid},
5244: 'owner' => $courseownerbuf{$crsid},
5245: };
5246: }
5247: #
5248: # Write course id database (reverse lookup) to homeserver of courses
5249: # Is used in pickcourse
5250: #
5251: foreach my $crs_home (keys(%courseidbuffer)) {
5252: my $response = &courseidput(&host_domain($crs_home),
5253: $courseidbuffer{$crs_home},
5254: $crs_home,'timeonly');
5255: }
5256: #
5257: # File accesses
5258: # Writes to the dynamic metadata of resources to get hit counts, etc.
5259: #
5260: foreach my $entry (keys(%accesshash)) {
5261: if ($entry =~ /___count$/) {
5262: my ($dom,$name);
5263: ($dom,$name,undef)=
5264: ($entry=~m{___($match_domain)/($match_name)/(.*)___count$});
5265: if (! defined($dom) || $dom eq '' ||
5266: ! defined($name) || $name eq '') {
5267: my $cid = $env{'request.course.id'};
5268: #
5269: # FIXME 11/29/2021
5270: # Typo in rev. 1.458 (2003/12/09)??
5271: # These should likely by $env{'course.'.$cid.'.domain'} and $env{'course.'.$cid.'.num'}
5272: #
5273: # While these remain as $env{'request.'.$cid.'.domain'} and $env{'request.'.$cid.'.num'}
5274: # $dom and $name will always be null, so the &inc() call will default to storing this data
5275: # in a nohist_accesscount.db file for the user rather than the course.
5276: #
5277: # That said there is a lot of noise in the data being stored.
5278: # So counts for prtspool/ and adm/ etc. are recorded.
5279: #
5280: # A review of which items ending '___count' are written to %accesshash should likely be
5281: # made before deciding whether to set these to 'course.' instead of 'request.'
5282: #
5283: # Under the current scheme each user receives a nohist_accesscount.db file listing
5284: # accesses for things which are not published resources, regardless of course, and
5285: # there is not a nohist_accesscount.db file in a course, which might log accesses from
5286: # anyone in the course for things which are not published resources.
5287: #
5288: # For an author, nohist_accesscount.db ends up having records for other items
5289: # mixed up with the legitimate access counts for the author's published resources.
5290: #
5291: $dom = $env{'request.'.$cid.'.domain'};
5292: $name = $env{'request.'.$cid.'.num'};
5293: }
5294: my $value = $accesshash{$entry};
5295: my (undef,$url,undef) = ($entry =~ /^(.*)___(.*)___count$/);
5296: my %temphash=($url => $value);
5297: my $result = &inc('nohist_accesscount',\%temphash,$dom,$name);
5298: if ($result eq 'ok') {
5299: delete $accesshash{$entry};
5300: }
5301: } else {
5302: my ($dom,$name) = ($entry=~m{___($match_domain)/($match_name)/(.*)___(\w+)$});
5303: if (($dom eq 'uploaded') || ($dom eq 'adm')) { next; }
5304: my %temphash=($entry => $accesshash{$entry});
5305: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
5306: delete $accesshash{$entry};
5307: }
5308: }
5309: }
5310: #
5311: # Roles
5312: # Reverse lookup of user roles for course faculty/staff and co-authorship
5313: #
5314: foreach my $entry (keys(%userrolehash)) {
5315: my ($role,$uname,$udom,$runame,$rudom,$rsec)=
5316: split(/\:/,$entry);
5317: if (&put('nohist_userroles',
5318: { $role.':'.$uname.':'.$udom.':'.$rsec => $userrolehash{$entry} },
5319: $rudom,$runame) eq 'ok') {
5320: delete $userrolehash{$entry};
5321: }
5322: }
5323: #
5324: # Reverse lookup of domain roles (dc, ad, li, sc, dh, da, au)
5325: #
5326: my %domrolebuffer = ();
5327: foreach my $entry (keys(%domainrolehash)) {
5328: my ($role,$uname,$udom,$runame,$rudom,$rsec)=split(/:/,$entry);
5329: if ($domrolebuffer{$rudom}) {
5330: $domrolebuffer{$rudom}.='&'.&escape($entry).
5331: '='.&escape($domainrolehash{$entry});
5332: } else {
5333: $domrolebuffer{$rudom}.=&escape($entry).
5334: '='.&escape($domainrolehash{$entry});
5335: }
5336: delete $domainrolehash{$entry};
5337: }
5338: foreach my $dom (keys(%domrolebuffer)) {
5339: my %servers;
5340: if (defined(&domain($dom,'primary'))) {
5341: my $primary=&domain($dom,'primary');
5342: my $hostname=&hostname($primary);
5343: $servers{$primary} = $hostname;
5344: } else {
5345: %servers = &get_servers($dom,'library');
5346: }
5347: foreach my $tryserver (keys(%servers)) {
5348: if (&reply('domroleput:'.$dom.':'.
5349: $domrolebuffer{$dom},$tryserver) eq 'ok') {
5350: last;
5351: } else {
5352: &logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);
5353: }
5354: }
5355: }
5356: $dumpcount++;
5357: }
5358:
5359: sub courselog {
5360: my $what=shift;
5361: $what=time.':'.$what;
5362: unless ($env{'request.course.id'}) { return ''; }
5363: $coursedombuf{$env{'request.course.id'}}=
5364: $env{'course.'.$env{'request.course.id'}.'.domain'};
5365: $coursenumbuf{$env{'request.course.id'}}=
5366: $env{'course.'.$env{'request.course.id'}.'.num'};
5367: $coursehombuf{$env{'request.course.id'}}=
5368: $env{'course.'.$env{'request.course.id'}.'.home'};
5369: $coursedescrbuf{$env{'request.course.id'}}=
5370: $env{'course.'.$env{'request.course.id'}.'.description'};
5371: $courseinstcodebuf{$env{'request.course.id'}}=
5372: $env{'course.'.$env{'request.course.id'}.'.internal.coursecode'};
5373: $courseownerbuf{$env{'request.course.id'}}=
5374: $env{'course.'.$env{'request.course.id'}.'.internal.courseowner'};
5375: $coursetypebuf{$env{'request.course.id'}}=
5376: $env{'course.'.$env{'request.course.id'}.'.type'};
5377: if (defined $courselogs{$env{'request.course.id'}}) {
5378: $courselogs{$env{'request.course.id'}}.='&'.$what;
5379: } else {
5380: $courselogs{$env{'request.course.id'}}.=$what;
5381: }
5382: if (length($courselogs{$env{'request.course.id'}})>4048) {
5383: &flushcourselogs();
5384: }
5385: }
5386:
5387: sub courseacclog {
5388: my $fnsymb=shift;
5389: unless ($env{'request.course.id'}) { return ''; }
5390: my $what=$fnsymb.':'.$env{'user.name'}.':'.$env{'user.domain'};
5391: if ($fnsymb=~/$LONCAPA::assess_re/) {
5392: $what.=':POST';
5393: # FIXME: Probably ought to escape things....
5394: foreach my $key (keys(%env)) {
5395: if ($key=~/^form\.(.*)/) {
5396: my $formitem = $1;
5397: if ($formitem =~ /^HWFILE(?:SIZE|TOOBIG)/) {
5398: $what.=':'.$formitem.'='.$env{$key};
5399: } elsif ($formitem !~ /^HWFILE(?:[^.]+)$/) {
5400: if ($formitem eq 'proctorpassword') {
5401: $what.=':'.$formitem.'=' . '*' x length($env{$key});
5402: } else {
5403: $what.=':'.$formitem.'='.$env{$key};
5404: }
5405: }
5406: }
5407: }
5408: } elsif ($fnsymb =~ m:^/adm/searchcat:) {
5409: # FIXME: We should not be depending on a form parameter that someone
5410: # editing lonsearchcat.pm might change in the future.
5411: if ($env{'form.phase'} eq 'course_search') {
5412: $what.= ':POST';
5413: # FIXME: Probably ought to escape things....
5414: foreach my $element ('courseexp','crsfulltext','crsrelated',
5415: 'crsdiscuss') {
5416: $what.=':'.$element.'='.$env{'form.'.$element};
5417: }
5418: }
5419: }
5420: &courselog($what);
5421: }
5422:
5423: sub countacc {
5424: my $url=&declutter(shift);
5425: return if (! defined($url) || $url eq '');
5426: unless ($env{'request.course.id'}) { return ''; }
5427: #
5428: # Mark that this url was used in this course
5429: #
5430: $accesshash{$env{'request.course.id'}.'___'.$url.'___course'}=1;
5431: #
5432: # Increase the access count for this resource in this child process
5433: #
5434: my $key=$$.$processmarker.'_'.$dumpcount.'___'.$url.'___count';
5435: $accesshash{$key}++;
5436: }
5437:
5438: sub linklog {
5439: my ($from,$to)=@_;
5440: $from=&declutter($from);
5441: $to=&declutter($to);
5442: $accesshash{$from.'___'.$to.'___comefrom'}=1;
5443: $accesshash{$to.'___'.$from.'___goto'}=1;
5444: }
5445:
5446: sub statslog {
5447: my ($symb,$part,$users,$av_attempts,$degdiff)=@_;
5448: if ($users<2) { return; }
5449: my %dynstore=&LONCAPA::lonmetadata::dynamic_metadata_storage({
5450: 'course' => $env{'request.course.id'},
5451: 'sections' => '"all"',
5452: 'num_students' => $users,
5453: 'part' => $part,
5454: 'symb' => $symb,
5455: 'mean_tries' => $av_attempts,
5456: 'deg_of_diff' => $degdiff});
5457: foreach my $key (keys(%dynstore)) {
5458: $accesshash{$key}=$dynstore{$key};
5459: }
5460: }
5461:
5462: sub userrolelog {
5463: my ($trole,$username,$domain,$area,$tstart,$tend)=@_;
5464: if ( $trole =~ /^(ca|aa|in|cc|ep|cr|ta|co)/ ) {
5465: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
5466: $userrolehash
5467: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
5468: =$tend.':'.$tstart;
5469: }
5470: if ($env{'request.role'} =~ /dc\./ && $trole =~ /^(au|in|cc|ep|cr|ta|co)/) {
5471: $userrolehash
5472: {$trole.':'.$username.':'.$domain.':'.$env{'user.name'}.':'.$env{'user.domain'}.':'}
5473: =$tend.':'.$tstart;
5474: }
5475: if ($trole =~ /^(dc|ad|li|au|dg|sc|dh|da)/ ) {
5476: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
5477: $domainrolehash
5478: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
5479: = $tend.':'.$tstart;
5480: }
5481: }
5482:
5483: sub courserolelog {
5484: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$selfenroll,
5485: $context,$othdomby,$requester)=@_;
5486: if ($area =~ m-^/($match_domain)/($match_courseid)/?([^/]*)-) {
5487: my $cdom = $1;
5488: my $cnum = $2;
5489: my $sec = $3;
5490: my $namespace = 'rolelog';
5491: my %storehash = (
5492: role => $trole,
5493: start => $tstart,
5494: end => $tend,
5495: selfenroll => $selfenroll,
5496: context => $context,
5497: );
5498: if ($othdomby) {
5499: if ($othdomby eq 'othdombydc') {
5500: $storehash{'approval'} = 'domain';
5501: } elsif ($othdomby eq 'othdombyuser') {
5502: $storehash{'approval'} = 'user';
5503: }
5504: if ($requester ne '') {
5505: $storehash{'requester'} = $requester;
5506: }
5507: }
5508: if ($trole eq 'gr') {
5509: $namespace = 'groupslog';
5510: $storehash{'group'} = $sec;
5511: } else {
5512: $storehash{'section'} = $sec;
5513: my ($curruserdomstr,$newuserdomstr);
5514: if (exists($env{'course.'.$cdom.'_'.$cnum.'.internal.userdomains'})) {
5515: $curruserdomstr = $env{'course.'.$env{'request.course.id'}.'.internal.userdomains'};
5516: } else {
5517: my %courseinfo = &coursedescription($cdom.'/'.$cnum);
5518: $curruserdomstr = $courseinfo{'internal.userdomains'};
5519: }
5520: if ($curruserdomstr ne '') {
5521: my @udoms = split(/,/,$curruserdomstr);
5522: unless (grep(/^\Q$domain\E/,@udoms)) {
5523: push(@udoms,$domain);
5524: $newuserdomstr = join(',',sort(@udoms));
5525: }
5526: } else {
5527: $newuserdomstr = $domain;
5528: }
5529: if ($newuserdomstr ne '') {
5530: my $putresult = &put('environment',{ 'internal.userdomains' => $newuserdomstr },
5531: $cdom,$cnum);
5532: if ($putresult eq 'ok') {
5533: unless (($selfenroll) || ($context eq 'selfenroll')) {
5534: if (($context eq 'createcourse') || ($context eq 'requestcourses') ||
5535: ($context eq 'automated') || ($context eq 'domain')) {
5536: $env{'course.'.$cdom.'_'.$cnum.'.internal.userdomains'} = $newuserdomstr;
5537: } elsif ($env{'request.course.id'} eq $cdom.'_'.$cnum) {
5538: &appenv({'course.'.$cdom.'_'.$cnum.'.internal.userdomains' => $newuserdomstr});
5539: }
5540: }
5541: }
5542: }
5543: }
5544: &write_log('course',$namespace,\%storehash,$delflag,$username,
5545: $domain,$cnum,$cdom);
5546: if (($trole ne 'st') || ($sec ne '')) {
5547: &devalidate_cache_new('getcourseroles',$cdom.'_'.$cnum);
5548: }
5549: }
5550: return;
5551: }
5552:
5553: sub domainrolelog {
5554: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,
5555: $context,$othdomby,$requester)=@_;
5556: if ($area =~ m{^/($match_domain)/$}) {
5557: my $cdom = $1;
5558: my $domconfiguser = &get_domainconfiguser($cdom);
5559: my $namespace = 'rolelog';
5560: my %storehash = (
5561: role => $trole,
5562: start => $tstart,
5563: end => $tend,
5564: context => $context,
5565: );
5566: if ($othdomby) {
5567: if ($othdomby eq 'othdombydc') {
5568: $storehash{'approval'} = 'domain';
5569: } elsif ($othdomby eq 'othdombyuser') {
5570: $storehash{'approval'} = 'user';
5571: }
5572: if ($requester ne '') {
5573: $storehash{'requester'} = $requester;
5574: }
5575: }
5576: &write_log('domain',$namespace,\%storehash,$delflag,$username,
5577: $domain,$domconfiguser,$cdom);
5578: }
5579: return;
5580:
5581: }
5582:
5583: sub coauthorrolelog {
5584: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,
5585: $context,$othdomby,$requester)=@_;
5586: if ($area =~ m{^/($match_domain)/($match_username)$}) {
5587: my $audom = $1;
5588: my $auname = $2;
5589: my $namespace = 'rolelog';
5590: my %storehash = (
5591: role => $trole,
5592: start => $tstart,
5593: end => $tend,
5594: context => $context,
5595: );
5596: if ($othdomby) {
5597: if ($othdomby eq 'othdombydc') {
5598: $storehash{'approval'} = 'domain';
5599: } elsif ($othdomby eq 'othdombyuser') {
5600: $storehash{'approval'} = 'user';
5601: }
5602: if ($requester ne '') {
5603: $storehash{'requester'} = $requester;
5604: }
5605: }
5606: &write_log('author',$namespace,\%storehash,$delflag,$username,
5607: $domain,$auname,$audom);
5608: }
5609: return;
5610: }
5611:
5612: sub get_course_adv_roles {
5613: my ($cid,$codes) = @_;
5614: $cid=$env{'request.course.id'} unless (defined($cid));
5615: my %coursehash=&coursedescription($cid);
5616: my $crstype = &Apache::loncommon::course_type($cid);
5617: my %nothide=();
5618: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
5619: if ($user !~ /:/) {
5620: $nothide{join(':',split(/[\@]/,$user))}=1;
5621: } else {
5622: $nothide{$user}=1;
5623: }
5624: }
5625: my @possdoms = ($coursehash{'domain'});
5626: if ($coursehash{'checkforpriv'}) {
5627: push(@possdoms,split(/,/,$coursehash{'checkforpriv'}));
5628: }
5629: my %returnhash=();
5630: my %dumphash=
5631: &dump('nohist_userroles',$coursehash{'domain'},$coursehash{'num'});
5632: my $now=time;
5633: my %privileged;
5634: foreach my $entry (keys(%dumphash)) {
5635: my ($tend,$tstart)=split(/\:/,$dumphash{$entry});
5636: if (($tstart) && ($tstart<0)) { next; }
5637: if (($tend) && ($tend<$now)) { next; }
5638: if (($tstart) && ($now<$tstart)) { next; }
5639: my ($role,$username,$domain,$section)=split(/\:/,$entry);
5640: if ($username eq '' || $domain eq '') { next; }
5641: if ((&privileged($username,$domain,\@possdoms)) &&
5642: (!$nothide{$username.':'.$domain})) { next; }
5643: if ($role eq 'cr') { next; }
5644: if ($codes) {
5645: if ($section) { $role .= ':'.$section; }
5646: if ($returnhash{$role}) {
5647: $returnhash{$role}.=','.$username.':'.$domain;
5648: } else {
5649: $returnhash{$role}=$username.':'.$domain;
5650: }
5651: } else {
5652: my $key=&plaintext($role,$crstype);
5653: if ($section) { $key.=' ('.&Apache::lonlocal::mt('Section [_1]',$section).')'; }
5654: if ($returnhash{$key}) {
5655: $returnhash{$key}.=','.$username.':'.$domain;
5656: } else {
5657: $returnhash{$key}=$username.':'.$domain;
5658: }
5659: }
5660: }
5661: return %returnhash;
5662: }
5663:
5664: sub get_my_roles {
5665: my ($uname,$udom,$context,$types,$roles,$roledoms,$withsec,$hidepriv)=@_;
5666: unless (defined($uname)) { $uname=$env{'user.name'}; }
5667: unless (defined($udom)) { $udom=$env{'user.domain'}; }
5668: my (%dumphash,%nothide);
5669: if ($context eq 'userroles') {
5670: %dumphash = &dump('roles',$udom,$uname);
5671: } else {
5672: %dumphash = &dump('nohist_userroles',$udom,$uname);
5673: if ($hidepriv) {
5674: my %coursehash=&coursedescription($udom.'_'.$uname);
5675: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
5676: if ($user !~ /:/) {
5677: $nothide{join(':',split(/[\@]/,$user))} = 1;
5678: } else {
5679: $nothide{$user} = 1;
5680: }
5681: }
5682: }
5683: }
5684: my %returnhash=();
5685: my $now=time;
5686: my %privileged;
5687: foreach my $entry (keys(%dumphash)) {
5688: my ($role,$tend,$tstart);
5689: if ($context eq 'userroles') {
5690: next if ($entry =~ /^rolesdef/);
5691: ($role,$tend,$tstart)=split(/_/,$dumphash{$entry});
5692: } else {
5693: ($tend,$tstart)=split(/\:/,$dumphash{$entry});
5694: }
5695: if (($tstart) && ($tstart<0)) { next; }
5696: my $status = 'active';
5697: if (($tend) && ($tend<=$now)) {
5698: $status = 'previous';
5699: }
5700: if (($tstart) && ($now<$tstart)) {
5701: $status = 'future';
5702: }
5703: if (ref($types) eq 'ARRAY') {
5704: if (!grep(/^\Q$status\E$/,@{$types})) {
5705: next;
5706: }
5707: } else {
5708: if ($status ne 'active') {
5709: next;
5710: }
5711: }
5712: my ($rolecode,$username,$domain,$section,$area);
5713: if ($context eq 'userroles') {
5714: ($area,$rolecode) = ($entry =~ /^(.+)_([^_]+)$/);
5715: (undef,$domain,$username,$section) = split(/\//,$area);
5716: } else {
5717: ($role,$username,$domain,$section) = split(/\:/,$entry);
5718: }
5719: if (ref($roledoms) eq 'ARRAY') {
5720: if (!grep(/^\Q$domain\E$/,@{$roledoms})) {
5721: next;
5722: }
5723: }
5724: if (ref($roles) eq 'ARRAY') {
5725: if (!grep(/^\Q$role\E$/,@{$roles})) {
5726: if ($role =~ /^cr\//) {
5727: if (!grep(/^cr$/,@{$roles})) {
5728: next;
5729: }
5730: } elsif ($role =~ /^gr\//) {
5731: if (!grep(/^gr$/,@{$roles})) {
5732: next;
5733: }
5734: } else {
5735: next;
5736: }
5737: }
5738: }
5739: if ($hidepriv) {
5740: my @privroles = ('dc','su');
5741: if ($context eq 'userroles') {
5742: next if (grep(/^\Q$role\E$/,@privroles));
5743: } else {
5744: my $possdoms = [$domain];
5745: if (ref($roledoms) eq 'ARRAY') {
5746: push(@{$possdoms},@{$roledoms});
5747: }
5748: if (&privileged($username,$domain,$possdoms,\@privroles)) {
5749: if (!$nothide{$username.':'.$domain}) {
5750: next;
5751: }
5752: }
5753: }
5754: }
5755: if ($withsec) {
5756: $returnhash{$username.':'.$domain.':'.$role.':'.$section} =
5757: $tstart.':'.$tend;
5758: } else {
5759: $returnhash{$username.':'.$domain.':'.$role}=$tstart.':'.$tend;
5760: }
5761: }
5762: return %returnhash;
5763: }
5764:
5765: sub get_all_adhocroles {
5766: my ($dom) = @_;
5767: my @roles_by_num = ();
5768: my %domdefaults = &get_domain_defaults($dom);
5769: my (%description,%access_in_dom,%access_info);
5770: if (ref($domdefaults{'adhocroles'}) eq 'HASH') {
5771: my $count = 0;
5772: my %domcurrent = %{$domdefaults{'adhocroles'}};
5773: my %ordered;
5774: foreach my $role (sort(keys(%domcurrent))) {
5775: my ($order,$desc,$access_in_dom);
5776: if (ref($domcurrent{$role}) eq 'HASH') {
5777: $order = $domcurrent{$role}{'order'};
5778: $desc = $domcurrent{$role}{'desc'};
5779: $access_in_dom{$role} = $domcurrent{$role}{'access'};
5780: $access_info{$role} = $domcurrent{$role}{$access_in_dom{$role}};
5781: }
5782: if ($order eq '') {
5783: $order = $count;
5784: }
5785: $ordered{$order} = $role;
5786: if ($desc ne '') {
5787: $description{$role} = $desc;
5788: } else {
5789: $description{$role}= $role;
5790: }
5791: $count++;
5792: }
5793: foreach my $item (sort {$a <=> $b } (keys(%ordered))) {
5794: push(@roles_by_num,$ordered{$item});
5795: }
5796: }
5797: return (\@roles_by_num,\%description,\%access_in_dom,\%access_info);
5798: }
5799:
5800: sub get_my_adhocroles {
5801: my ($cid,$checkreg) = @_;
5802: my ($cdom,$cnum,%info,@possroles,$description,$roles_by_num);
5803: if ($env{'request.course.id'} eq $cid) {
5804: $cdom = $env{'course.'.$cid.'.domain'};
5805: $cnum = $env{'course.'.$cid.'.num'};
5806: $info{'internal.coursecode'} = $env{'course.'.$cid.'.internal.coursecode'};
5807: } elsif ($cid =~ /^($match_domain)_($match_courseid)$/) {
5808: $cdom = $1;
5809: $cnum = $2;
5810: %info = &get('environment',['internal.coursecode'],
5811: $cdom,$cnum);
5812: }
5813: if (($info{'internal.coursecode'} ne '') && ($checkreg)) {
5814: my $user = $env{'user.name'}.':'.$env{'user.domain'};
5815: my %rosterhash = &get('classlist',[$user],$cdom,$cnum);
5816: if ($rosterhash{$user} ne '') {
5817: my $type = (split(/:/,$rosterhash{$user}))[5];
5818: return ([],{}) if ($type eq 'auto');
5819: }
5820: }
5821: if (($cdom ne '') && ($cnum ne '')) {
5822: if (($env{"user.role.dh./$cdom/"}) || ($env{"user.role.da./$cdom/"})) {
5823: my $then=$env{'user.login.time'};
5824: my $update=$env{'user.update.time'};
5825: if (!$update) {
5826: $update = $then;
5827: }
5828: my @liveroles;
5829: foreach my $role ('dh','da') {
5830: if ($env{"user.role.$role./$cdom/"}) {
5831: my ($tstart,$tend)=split(/\./,$env{"user.role.$role./$cdom/"});
5832: my $limit = $update;
5833: if ($env{'request.role'} eq "$role./$cdom/") {
5834: $limit = $then;
5835: }
5836: my $activerole = 1;
5837: if ($tstart && $tstart>$limit) { $activerole = 0; }
5838: if ($tend && $tend <$limit) { $activerole = 0; }
5839: if ($activerole) {
5840: push(@liveroles,$role);
5841: }
5842: }
5843: }
5844: if (@liveroles) {
5845: if (&homeserver($cnum,$cdom) ne 'no_host') {
5846: my ($accessref,$accessinfo,%access_in_dom);
5847: ($roles_by_num,$description,$accessref,$accessinfo) = &get_all_adhocroles($cdom);
5848: if (ref($roles_by_num) eq 'ARRAY') {
5849: if (@{$roles_by_num}) {
5850: my %settings;
5851: if ($env{'request.course.id'} eq $cid) {
5852: foreach my $envkey (keys(%env)) {
5853: if ($envkey =~ /^\Qcourse.$cid.\E(internal\.adhoc.+)$/) {
5854: $settings{$1} = $env{$envkey};
5855: }
5856: }
5857: } else {
5858: %settings = &dump('environment',$cdom,$cnum,'internal\.adhoc');
5859: }
5860: my %setincrs;
5861: if ($settings{'internal.adhocaccess'}) {
5862: map { $setincrs{$_} = 1; } split(/,/,$settings{'internal.adhocaccess'});
5863: }
5864: my @statuses;
5865: if ($env{'environment.inststatus'}) {
5866: @statuses = split(/,/,$env{'environment.inststatus'});
5867: }
5868: my $user = $env{'user.name'}.':'.$env{'user.domain'};
5869: if (ref($accessref) eq 'HASH') {
5870: %access_in_dom = %{$accessref};
5871: }
5872: foreach my $role (@{$roles_by_num}) {
5873: my ($curraccess,@okstatus,@personnel);
5874: if ($setincrs{$role}) {
5875: ($curraccess,my $rest) = split(/=/,$settings{'internal.adhoc.'.$role});
5876: if ($curraccess eq 'status') {
5877: @okstatus = split(/\&/,$rest);
5878: } elsif (($curraccess eq 'exc') || ($curraccess eq 'inc')) {
5879: @personnel = split(/\&/,$rest);
5880: }
5881: } else {
5882: $curraccess = $access_in_dom{$role};
5883: if (ref($accessinfo) eq 'HASH') {
5884: if ($curraccess eq 'status') {
5885: if (ref($accessinfo->{$role}) eq 'ARRAY') {
5886: @okstatus = @{$accessinfo->{$role}};
5887: }
5888: } elsif (($curraccess eq 'exc') || ($curraccess eq 'inc')) {
5889: if (ref($accessinfo->{$role}) eq 'ARRAY') {
5890: @personnel = @{$accessinfo->{$role}};
5891: }
5892: }
5893: }
5894: }
5895: if ($curraccess eq 'none') {
5896: next;
5897: } elsif ($curraccess eq 'all') {
5898: push(@possroles,$role);
5899: } elsif ($curraccess eq 'dh') {
5900: if (grep(/^dh$/,@liveroles)) {
5901: push(@possroles,$role);
5902: } else {
5903: next;
5904: }
5905: } elsif ($curraccess eq 'da') {
5906: if (grep(/^da$/,@liveroles)) {
5907: push(@possroles,$role);
5908: } else {
5909: next;
5910: }
5911: } elsif ($curraccess eq 'status') {
5912: if (@okstatus) {
5913: if (!@statuses) {
5914: if (grep(/^default$/,@okstatus)) {
5915: push(@possroles,$role);
5916: }
5917: } else {
5918: foreach my $status (@okstatus) {
5919: if (grep(/^\Q$status\E$/,@statuses)) {
5920: push(@possroles,$role);
5921: last;
5922: }
5923: }
5924: }
5925: }
5926: } elsif (($curraccess eq 'exc') || ($curraccess eq 'inc')) {
5927: if (grep(/^\Q$user\E$/,@personnel)) {
5928: if ($curraccess eq 'exc') {
5929: push(@possroles,$role);
5930: }
5931: } elsif ($curraccess eq 'inc') {
5932: push(@possroles,$role);
5933: }
5934: }
5935: }
5936: }
5937: }
5938: }
5939: }
5940: }
5941: }
5942: unless (ref($description) eq 'HASH') {
5943: if (ref($roles_by_num) eq 'ARRAY') {
5944: my %desc;
5945: map { $desc{$_} = $_; } (@{$roles_by_num});
5946: $description = \%desc;
5947: } else {
5948: $description = {};
5949: }
5950: }
5951: return (\@possroles,$description);
5952: }
5953:
5954: # ----------------------------------------------------- Frontpage Announcements
5955: #
5956: #
5957:
5958: sub postannounce {
5959: my ($server,$text)=@_;
5960: unless (&allowed('psa',&host_domain($server))) { return 'refused'; }
5961: unless ($text=~/\w/) { $text=''; }
5962: return &reply('setannounce:'.&escape($text),$server);
5963: }
5964:
5965: sub getannounce {
5966:
5967: if (open(my $fh,"<",$perlvar{'lonDocRoot'}.'/announcement.txt')) {
5968: my $announcement='';
5969: while (my $line = <$fh>) { $announcement .= $line; }
5970: close($fh);
5971: if ($announcement=~/\w/) {
5972: return
5973: '<table bgcolor="#FF5555" cellpadding="5" cellspacing="3">'.
5974: '<tr><td bgcolor="#FFFFFF"><tt>'.$announcement.'</tt></td></tr></table>';
5975: } else {
5976: return '';
5977: }
5978: } else {
5979: return '';
5980: }
5981: }
5982:
5983: # ---------------------------------------------------------- Course ID routines
5984: # Deal with domain's nohist_courseid.db files
5985: #
5986:
5987: sub courseidput {
5988: my ($domain,$storehash,$coursehome,$caller) = @_;
5989: return unless (ref($storehash) eq 'HASH');
5990: my $outcome;
5991: if ($caller eq 'timeonly') {
5992: my $cids = '';
5993: foreach my $item (keys(%$storehash)) {
5994: $cids.=&escape($item).'&';
5995: }
5996: $cids=~s/\&$//;
5997: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$cids,
5998: $coursehome);
5999: } else {
6000: my $items = '';
6001: foreach my $item (keys(%$storehash)) {
6002: $items.= &escape($item).'='.
6003: &freeze_escape($$storehash{$item}).'&';
6004: }
6005: $items=~s/\&$//;
6006: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$items,
6007: $coursehome);
6008: }
6009: if ($outcome eq 'unknown_cmd') {
6010: my $what;
6011: foreach my $cid (keys(%$storehash)) {
6012: $what .= &escape($cid).'=';
6013: foreach my $item ('description','inst_code','owner','type') {
6014: $what .= &escape($storehash->{$cid}{$item}).':';
6015: }
6016: $what =~ s/\:$/&/;
6017: }
6018: $what =~ s/\&$//;
6019: return &reply('courseidput:'.$domain.':'.$what,$coursehome);
6020: } else {
6021: return $outcome;
6022: }
6023: }
6024:
6025: sub courseiddump {
6026: my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,
6027: $coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok,
6028: $selfenrollonly,$catfilter,$showhidden,$caller,$cloner,$cc_clone,
6029: $cloneonly,$createdbefore,$createdafter,$creationcontext,$domcloner,
6030: $hasuniquecode,$reqcrsdom,$reqinstcode)=@_;
6031: my $as_hash = 1;
6032: my %returnhash;
6033: if (!$domfilter) { $domfilter=''; }
6034: my %libserv = &all_library();
6035: foreach my $tryserver (keys(%libserv)) {
6036: if ( ( $hostidflag == 1
6037: && grep(/^\Q$tryserver\E$/,@{$hostidref}) )
6038: || (!defined($hostidflag)) ) {
6039:
6040: if (($domfilter eq '') ||
6041: (&host_domain($tryserver) eq $domfilter)) {
6042: my $rep;
6043: if (grep { $_ eq $tryserver } current_machine_ids()) {
6044: $rep = LONCAPA::Lond::dump_course_id_handler(
6045: join(":", (&host_domain($tryserver), $sincefilter,
6046: &escape($descfilter), &escape($instcodefilter),
6047: &escape($ownerfilter), &escape($coursefilter),
6048: &escape($typefilter), &escape($regexp_ok),
6049: $as_hash, &escape($selfenrollonly),
6050: &escape($catfilter), $showhidden, $caller,
6051: &escape($cloner), &escape($cc_clone), $cloneonly,
6052: &escape($createdbefore), &escape($createdafter),
6053: &escape($creationcontext),$domcloner,$hasuniquecode,
6054: $reqcrsdom,&escape($reqinstcode))));
6055: } else {
6056: $rep = &reply('courseiddump:'.&host_domain($tryserver).':'.
6057: $sincefilter.':'.&escape($descfilter).':'.
6058: &escape($instcodefilter).':'.&escape($ownerfilter).
6059: ':'.&escape($coursefilter).':'.&escape($typefilter).
6060: ':'.&escape($regexp_ok).':'.$as_hash.':'.
6061: &escape($selfenrollonly).':'.&escape($catfilter).':'.
6062: $showhidden.':'.$caller.':'.&escape($cloner).':'.
6063: &escape($cc_clone).':'.$cloneonly.':'.
6064: &escape($createdbefore).':'.&escape($createdafter).':'.
6065: &escape($creationcontext).':'.$domcloner.':'.$hasuniquecode.
6066: ':'.$reqcrsdom.':'.&escape($reqinstcode),$tryserver);
6067: }
6068:
6069: my @pairs=split(/\&/,$rep);
6070: foreach my $item (@pairs) {
6071: my ($key,$value)=split(/\=/,$item,2);
6072: $key = &unescape($key);
6073: next if ($key =~ /^error: 2 /);
6074: my $result = &thaw_unescape($value);
6075: if (ref($result) eq 'HASH') {
6076: $returnhash{$key}=$result;
6077: } else {
6078: my @responses = split(/:/,$value);
6079: my @items = ('description','inst_code','owner','type');
6080: for (my $i=0; $i<@responses; $i++) {
6081: $returnhash{$key}{$items[$i]} = &unescape($responses[$i]);
6082: }
6083: }
6084: }
6085: }
6086: }
6087: }
6088: return %returnhash;
6089: }
6090:
6091: sub courselastaccess {
6092: my ($cdom,$cnum,$hostidref) = @_;
6093: my %returnhash;
6094: if ($cdom && $cnum) {
6095: my $chome = &homeserver($cnum,$cdom);
6096: if ($chome ne 'no_host') {
6097: my $rep = &reply('courselastaccess:'.$cdom.':'.$cnum,$chome);
6098: &extract_lastaccess(\%returnhash,$rep);
6099: }
6100: } else {
6101: if (!$cdom) { $cdom=''; }
6102: my %libserv = &all_library();
6103: foreach my $tryserver (keys(%libserv)) {
6104: if (ref($hostidref) eq 'ARRAY') {
6105: next unless (grep(/^\Q$tryserver\E$/,@{$hostidref}));
6106: }
6107: if (($cdom eq '') || (&host_domain($tryserver) eq $cdom)) {
6108: my $rep = &reply('courselastaccess:'.&host_domain($tryserver).':',$tryserver);
6109: &extract_lastaccess(\%returnhash,$rep);
6110: }
6111: }
6112: }
6113: return %returnhash;
6114: }
6115:
6116: sub extract_lastaccess {
6117: my ($returnhash,$rep) = @_;
6118: if (ref($returnhash) eq 'HASH') {
6119: unless ($rep eq 'unknown_command' || $rep eq 'no_such_host' ||
6120: $rep eq 'con_lost' || $rep eq 'rejected' || $rep eq 'refused' ||
6121: $rep eq '') {
6122: my @pairs=split(/\&/,$rep);
6123: foreach my $item (@pairs) {
6124: my ($key,$value)=split(/\=/,$item,2);
6125: $key = &unescape($key);
6126: next if ($key =~ /^error: 2 /);
6127: $returnhash->{$key} = &thaw_unescape($value);
6128: }
6129: }
6130: }
6131: return;
6132: }
6133:
6134: # ---------------------------------------------------------- DC e-mail
6135:
6136: sub dcmailput {
6137: my ($domain,$msgid,$message,$server)=@_;
6138: my $status = &critical(
6139: 'dcmailput:'.$domain.':'.&escape($msgid).'='.
6140: &escape($message),$server);
6141: return $status;
6142: }
6143:
6144: sub dcmaildump {
6145: my ($dom,$startdate,$enddate,$senders) = @_;
6146: my %returnhash=();
6147:
6148: if (defined(&domain($dom,'primary'))) {
6149: my $cmd='dcmaildump:'.$dom.':'.&escape($startdate).':'.
6150: &escape($enddate).':';
6151: my @esc_senders=map { &escape($_)} @$senders;
6152: $cmd.=&escape(join('&',@esc_senders));
6153: foreach my $line (split(/\&/,&reply($cmd,&domain($dom,'primary')))) {
6154: my ($key,$value) = split(/\=/,$line,2);
6155: if (($key) && ($value)) {
6156: $returnhash{&unescape($key)} = &unescape($value);
6157: }
6158: }
6159: }
6160: return %returnhash;
6161: }
6162: # ---------------------------------------------------------- Domain roles
6163:
6164: sub get_domain_roles {
6165: my ($dom,$roles,$startdate,$enddate)=@_;
6166: if ((!defined($startdate)) || ($startdate eq '')) {
6167: $startdate = '.';
6168: }
6169: if ((!defined($enddate)) || ($enddate eq '')) {
6170: $enddate = '.';
6171: }
6172: my $rolelist;
6173: if (ref($roles) eq 'ARRAY') {
6174: $rolelist = join('&',@{$roles});
6175: }
6176: my %personnel = ();
6177:
6178: my %servers = &get_servers($dom,'library');
6179: foreach my $tryserver (keys(%servers)) {
6180: %{$personnel{$tryserver}}=();
6181: foreach my $line (split(/\&/,&reply('domrolesdump:'.$dom.':'.
6182: &escape($startdate).':'.
6183: &escape($enddate).':'.
6184: &escape($rolelist), $tryserver))) {
6185: my ($key,$value) = split(/\=/,$line,2);
6186: if (($key) && ($value)) {
6187: $personnel{$tryserver}{&unescape($key)} = &unescape($value);
6188: }
6189: }
6190: }
6191: return %personnel;
6192: }
6193:
6194: sub get_active_domroles {
6195: my ($dom,$roles) = @_;
6196: return () unless (ref($roles) eq 'ARRAY');
6197: my $now = time;
6198: my %dompersonnel = &get_domain_roles($dom,$roles,$now,$now);
6199: my %domroles;
6200: foreach my $server (keys(%dompersonnel)) {
6201: foreach my $user (sort(keys(%{$dompersonnel{$server}}))) {
6202: my ($trole,$uname,$udom,$runame,$rudom,$rsec) = split(/:/,$user);
6203: $domroles{$uname.':'.$udom} = $dompersonnel{$server}{$user};
6204: }
6205: }
6206: return %domroles;
6207: }
6208:
6209: # ----------------------------------------------------------- Interval timing
6210:
6211: {
6212: # Caches needed for speedup of navmaps
6213: # We don't want to cache this for very long at all (5 seconds at most)
6214: #
6215: # The user for whom we cache
6216: my $cachedkey='';
6217: # The cached times for this user
6218: my %cachedtimes=();
6219: # When this was last done
6220: my $cachedtime='';
6221:
6222: sub load_all_first_access {
6223: my ($uname,$udom,$ignorecache)=@_;
6224: if (($cachedkey eq $uname.':'.$udom) &&
6225: (abs($cachedtime-time)<5) && (!$env{'form.markaccess'}) &&
6226: (!$ignorecache)) {
6227: return;
6228: }
6229: $cachedtime=time;
6230: $cachedkey=$uname.':'.$udom;
6231: %cachedtimes=&dump('firstaccesstimes',$udom,$uname);
6232: }
6233:
6234: sub get_first_access {
6235: my ($type,$argsymb,$argmap,$ignorecache)=@_;
6236: my ($symb,$courseid,$udom,$uname)=&whichuser();
6237: if ($argsymb) { $symb=$argsymb; }
6238: my ($map,$id,$res)=&decode_symb($symb);
6239: if ($argmap) { $map = $argmap; }
6240: if ($type eq 'course') {
6241: $res='course';
6242: } elsif ($type eq 'map') {
6243: $res=&symbread($map);
6244: } else {
6245: $res=$symb;
6246: }
6247: &load_all_first_access($uname,$udom,$ignorecache);
6248: return $cachedtimes{"$courseid\0$res"};
6249: }
6250:
6251: sub set_first_access {
6252: my ($type,$interval)=@_;
6253: my ($symb,$courseid,$udom,$uname)=&whichuser();
6254: my ($map,$id,$res)=&decode_symb($symb);
6255: if ($type eq 'course') {
6256: $res='course';
6257: } elsif ($type eq 'map') {
6258: $res=&symbread($map);
6259: } else {
6260: $res=$symb;
6261: }
6262: $cachedkey='';
6263: my $firstaccess=&get_first_access($type,$symb,$map);
6264: if ($firstaccess) {
6265: &logthis("First access time already set ($firstaccess) when attempting ".
6266: "to set new value (type: $type, extent: $res) for $uname:$udom ".
6267: "in $courseid");
6268: return 'already_set';
6269: } else {
6270: my $start = time;
6271: my $putres = &put('firstaccesstimes',{"$courseid\0$res"=>$start},
6272: $udom,$uname);
6273: if ($putres eq 'ok') {
6274: &put('timerinterval',{"$courseid\0$res"=>$interval},
6275: $udom,$uname);
6276: &appenv(
6277: {
6278: 'course.'.$courseid.'.firstaccess.'.$res => $start,
6279: 'course.'.$courseid.'.timerinterval.'.$res => $interval,
6280: }
6281: );
6282: if (($cachedtime) && (abs($start-$cachedtime) < 5)) {
6283: $cachedtimes{"$courseid\0$res"} = $start;
6284: }
6285: } elsif ($putres ne 'refused') {
6286: &logthis("Result: $putres when attempting to set first access time ".
6287: "(type: $type, extent: $res) for $uname:$udom in $courseid");
6288: }
6289: return $putres;
6290: }
6291: return 'already_set';
6292: }
6293: }
6294:
6295: # --------------------------------------------- Set Expire Date for Spreadsheet
6296:
6297: sub expirespread {
6298: my ($uname,$udom,$stype,$usymb)=@_;
6299: my $cid=$env{'request.course.id'};
6300: if ($cid) {
6301: my $now=time;
6302: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
6303: return &reply('put:'.$env{'course.'.$cid.'.domain'}.':'.
6304: $env{'course.'.$cid.'.num'}.
6305: ':nohist_expirationdates:'.
6306: &escape($key).'='.$now,
6307: $env{'course.'.$cid.'.home'})
6308: }
6309: return 'ok';
6310: }
6311:
6312: # ----------------------------------------------------- Devalidate Spreadsheets
6313:
6314: sub devalidate {
6315: my ($symb,$uname,$udom)=@_;
6316: my $cid=$env{'request.course.id'};
6317: if ($cid) {
6318: # delete the stored spreadsheets for
6319: # - the student level sheet of this user in course's homespace
6320: # - the assessment level sheet for this resource
6321: # for this user in user's homespace
6322: # - current conditional state info
6323: my $key=$uname.':'.$udom.':';
6324: my $status=
6325: &del('nohist_calculatedsheets',
6326: [$key.'studentcalc:'],
6327: $env{'course.'.$cid.'.domain'},
6328: $env{'course.'.$cid.'.num'})
6329: .' '.
6330: &del('nohist_calculatedsheets_'.$cid,
6331: [$key.'assesscalc:'.$symb],$udom,$uname);
6332: unless ($status eq 'ok ok') {
6333: &logthis('Could not devalidate spreadsheet '.
6334: $uname.' at '.$udom.' for '.
6335: $symb.': '.$status);
6336: }
6337: &delenv('user.state.'.$cid);
6338: }
6339: }
6340:
6341: sub get_scalar {
6342: my ($string,$end) = @_;
6343: my $value;
6344: if ($$string =~ s/^([^&]*?)($end)/$2/) {
6345: $value = $1;
6346: } elsif ($$string =~ s/^([^&]*?)&//) {
6347: $value = $1;
6348: }
6349: return &unescape($value);
6350: }
6351:
6352: sub array2str {
6353: my (@array) = @_;
6354: my $result=&arrayref2str(\@array);
6355: $result=~s/^__ARRAY_REF__//;
6356: $result=~s/__END_ARRAY_REF__$//;
6357: return $result;
6358: }
6359:
6360: sub arrayref2str {
6361: my ($arrayref) = @_;
6362: my $result='__ARRAY_REF__';
6363: foreach my $elem (@$arrayref) {
6364: if(ref($elem) eq 'ARRAY') {
6365: $result.=&arrayref2str($elem).'&';
6366: } elsif(ref($elem) eq 'HASH') {
6367: $result.=&hashref2str($elem).'&';
6368: } elsif(ref($elem)) {
6369: #print("Got a ref of ".(ref($elem))." skipping.");
6370: } else {
6371: $result.=&escape($elem).'&';
6372: }
6373: }
6374: $result=~s/\&$//;
6375: $result .= '__END_ARRAY_REF__';
6376: return $result;
6377: }
6378:
6379: sub hash2str {
6380: my (%hash) = @_;
6381: my $result=&hashref2str(\%hash);
6382: $result=~s/^__HASH_REF__//;
6383: $result=~s/__END_HASH_REF__$//;
6384: return $result;
6385: }
6386:
6387: sub hashref2str {
6388: my ($hashref)=@_;
6389: my $result='__HASH_REF__';
6390: foreach my $key (sort(keys(%$hashref))) {
6391: if (ref($key) eq 'ARRAY') {
6392: $result.=&arrayref2str($key).'=';
6393: } elsif (ref($key) eq 'HASH') {
6394: $result.=&hashref2str($key).'=';
6395: } elsif (ref($key)) {
6396: $result.='=';
6397: #print("Got a ref of ".(ref($key))." skipping.");
6398: } else {
6399: if (defined($key)) {$result.=&escape($key).'=';} else { last; }
6400: }
6401:
6402: if(ref($hashref->{$key}) eq 'ARRAY') {
6403: $result.=&arrayref2str($hashref->{$key}).'&';
6404: } elsif(ref($hashref->{$key}) eq 'HASH') {
6405: $result.=&hashref2str($hashref->{$key}).'&';
6406: } elsif(ref($hashref->{$key})) {
6407: $result.='&';
6408: #print("Got a ref of ".(ref($hashref->{$key}))." skipping.");
6409: } else {
6410: $result.=&escape($hashref->{$key}).'&';
6411: }
6412: }
6413: $result=~s/\&$//;
6414: $result .= '__END_HASH_REF__';
6415: return $result;
6416: }
6417:
6418: sub str2hash {
6419: my ($string)=@_;
6420: my ($hash)=&str2hashref('__HASH_REF__'.$string.'__END_HASH_REF__');
6421: return %$hash;
6422: }
6423:
6424: sub str2hashref {
6425: my ($string) = @_;
6426:
6427: my %hash;
6428:
6429: if($string !~ /^__HASH_REF__/) {
6430: if (! ($string eq '' || !defined($string))) {
6431: $hash{'error'}='Not hash reference';
6432: }
6433: return (\%hash, $string);
6434: }
6435:
6436: $string =~ s/^__HASH_REF__//;
6437:
6438: while($string !~ /^__END_HASH_REF__/) {
6439: #key
6440: my $key='';
6441: if($string =~ /^__HASH_REF__/) {
6442: ($key, $string)=&str2hashref($string);
6443: if(defined($key->{'error'})) {
6444: $hash{'error'}='Bad data';
6445: return (\%hash, $string);
6446: }
6447: } elsif($string =~ /^__ARRAY_REF__/) {
6448: ($key, $string)=&str2arrayref($string);
6449: if($key->[0] eq 'Array reference error') {
6450: $hash{'error'}='Bad data';
6451: return (\%hash, $string);
6452: }
6453: } else {
6454: $string =~ s/^(.*?)=//;
6455: $key=&unescape($1);
6456: }
6457: $string =~ s/^=//;
6458:
6459: #value
6460: my $value='';
6461: if($string =~ /^__HASH_REF__/) {
6462: ($value, $string)=&str2hashref($string);
6463: if(defined($value->{'error'})) {
6464: $hash{'error'}='Bad data';
6465: return (\%hash, $string);
6466: }
6467: } elsif($string =~ /^__ARRAY_REF__/) {
6468: ($value, $string)=&str2arrayref($string);
6469: if($value->[0] eq 'Array reference error') {
6470: $hash{'error'}='Bad data';
6471: return (\%hash, $string);
6472: }
6473: } else {
6474: $value=&get_scalar(\$string,'__END_HASH_REF__');
6475: }
6476: $string =~ s/^&//;
6477:
6478: $hash{$key}=$value;
6479: }
6480:
6481: $string =~ s/^__END_HASH_REF__//;
6482:
6483: return (\%hash, $string);
6484: }
6485:
6486: sub str2array {
6487: my ($string)=@_;
6488: my ($array)=&str2arrayref('__ARRAY_REF__'.$string.'__END_ARRAY_REF__');
6489: return @$array;
6490: }
6491:
6492: sub str2arrayref {
6493: my ($string) = @_;
6494: my @array;
6495:
6496: if($string !~ /^__ARRAY_REF__/) {
6497: if (! ($string eq '' || !defined($string))) {
6498: $array[0]='Array reference error';
6499: }
6500: return (\@array, $string);
6501: }
6502:
6503: $string =~ s/^__ARRAY_REF__//;
6504:
6505: while($string !~ /^__END_ARRAY_REF__/) {
6506: my $value='';
6507: if($string =~ /^__HASH_REF__/) {
6508: ($value, $string)=&str2hashref($string);
6509: if(defined($value->{'error'})) {
6510: $array[0] ='Array reference error';
6511: return (\@array, $string);
6512: }
6513: } elsif($string =~ /^__ARRAY_REF__/) {
6514: ($value, $string)=&str2arrayref($string);
6515: if($value->[0] eq 'Array reference error') {
6516: $array[0] ='Array reference error';
6517: return (\@array, $string);
6518: }
6519: } else {
6520: $value=&get_scalar(\$string,'__END_ARRAY_REF__');
6521: }
6522: $string =~ s/^&//;
6523:
6524: push(@array, $value);
6525: }
6526:
6527: $string =~ s/^__END_ARRAY_REF__//;
6528:
6529: return (\@array, $string);
6530: }
6531:
6532: # -------------------------------------------------------------------Temp Store
6533:
6534: sub tmpreset {
6535: my ($symb,$namespace,$domain,$stuname) = @_;
6536: if (!$symb) {
6537: $symb=&symbread();
6538: if (!$symb) { $symb= $env{'request.url'}; }
6539: }
6540: $symb=escape($symb);
6541:
6542: if (!$namespace) { $namespace=$env{'request.state'}; }
6543: $namespace=~s/\//\_/g;
6544: $namespace=~s/\W//g;
6545:
6546: if (!$domain) { $domain=$env{'user.domain'}; }
6547: if (!$stuname) { $stuname=$env{'user.name'}; }
6548: if ($domain eq 'public' && $stuname eq 'public') {
6549: $stuname=&get_requestor_ip();
6550: }
6551: my $path=LONCAPA::tempdir();
6552: my %hash;
6553: if (tie(%hash,'GDBM_File',
6554: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
6555: &GDBM_WRCREAT(),0640)) {
6556: foreach my $key (keys(%hash)) {
6557: if ($key=~ /:$symb/) {
6558: delete($hash{$key});
6559: }
6560: }
6561: }
6562: }
6563:
6564: sub tmpstore {
6565: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
6566:
6567: if (!$symb) {
6568: $symb=&symbread();
6569: if (!$symb) { $symb= $env{'request.url'}; }
6570: }
6571: $symb=escape($symb);
6572:
6573: if (!$namespace) {
6574: # I don't think we would ever want to store this for a course.
6575: # it seems this will only be used if we don't have a course.
6576: #$namespace=$env{'request.course.id'};
6577: #if (!$namespace) {
6578: $namespace=$env{'request.state'};
6579: #}
6580: }
6581: $namespace=~s/\//\_/g;
6582: $namespace=~s/\W//g;
6583: if (!$domain) { $domain=$env{'user.domain'}; }
6584: if (!$stuname) { $stuname=$env{'user.name'}; }
6585: if ($domain eq 'public' && $stuname eq 'public') {
6586: $stuname=&get_requestor_ip();
6587: }
6588: my $now=time;
6589: my %hash;
6590: my $path=LONCAPA::tempdir();
6591: if (tie(%hash,'GDBM_File',
6592: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
6593: &GDBM_WRCREAT(),0640)) {
6594: $hash{"version:$symb"}++;
6595: my $version=$hash{"version:$symb"};
6596: my $allkeys='';
6597: foreach my $key (keys(%$storehash)) {
6598: $allkeys.=$key.':';
6599: $hash{"$version:$symb:$key"}=&freeze_escape($$storehash{$key});
6600: }
6601: $hash{"$version:$symb:timestamp"}=$now;
6602: $allkeys.='timestamp';
6603: $hash{"$version:keys:$symb"}=$allkeys;
6604: if (untie(%hash)) {
6605: return 'ok';
6606: } else {
6607: return "error:$!";
6608: }
6609: } else {
6610: return "error:$!";
6611: }
6612: }
6613:
6614: # -----------------------------------------------------------------Temp Restore
6615:
6616: sub tmprestore {
6617: my ($symb,$namespace,$domain,$stuname) = @_;
6618:
6619: if (!$symb) {
6620: $symb=&symbread();
6621: if (!$symb) { $symb= $env{'request.url'}; }
6622: }
6623: $symb=escape($symb);
6624:
6625: if (!$namespace) { $namespace=$env{'request.state'}; }
6626:
6627: if (!$domain) { $domain=$env{'user.domain'}; }
6628: if (!$stuname) { $stuname=$env{'user.name'}; }
6629: if ($domain eq 'public' && $stuname eq 'public') {
6630: $stuname=&get_requestor_ip();
6631: }
6632: my %returnhash;
6633: $namespace=~s/\//\_/g;
6634: $namespace=~s/\W//g;
6635: my %hash;
6636: my $path=LONCAPA::tempdir();
6637: if (tie(%hash,'GDBM_File',
6638: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
6639: &GDBM_READER(),0640)) {
6640: my $version=$hash{"version:$symb"};
6641: $returnhash{'version'}=$version;
6642: my $scope;
6643: for ($scope=1;$scope<=$version;$scope++) {
6644: my $vkeys=$hash{"$scope:keys:$symb"};
6645: my @keys=split(/:/,$vkeys);
6646: my $key;
6647: $returnhash{"$scope:keys"}=$vkeys;
6648: foreach $key (@keys) {
6649: $returnhash{"$scope:$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
6650: $returnhash{"$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
6651: }
6652: }
6653: if (!(untie(%hash))) {
6654: return "error:$!";
6655: }
6656: } else {
6657: return "error:$!";
6658: }
6659: return %returnhash;
6660: }
6661:
6662: # ----------------------------------------------------------------------- Store
6663:
6664: sub store {
6665: my ($storehash,$symb,$namespace,$domain,$stuname,$laststore) = @_;
6666: my $home='';
6667:
6668: if ($stuname) { $home=&homeserver($stuname,$domain); }
6669:
6670: $symb=&symbclean($symb);
6671: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
6672:
6673: if (!$domain) { $domain=$env{'user.domain'}; }
6674: if (!$stuname) { $stuname=$env{'user.name'}; }
6675:
6676: &devalidate($symb,$stuname,$domain);
6677:
6678: $symb=escape($symb);
6679: if (!$namespace) {
6680: unless ($namespace=$env{'request.course.id'}) {
6681: return '';
6682: }
6683: }
6684: if (!$home) { $home=$env{'user.home'}; }
6685:
6686: $$storehash{'ip'}=&get_requestor_ip();
6687: $$storehash{'host'}=$perlvar{'lonHostID'};
6688:
6689: my $namevalue='';
6690: foreach my $key (keys(%$storehash)) {
6691: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
6692: }
6693: $namevalue=~s/\&$//;
6694: &courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue);
6695: return reply("store:$domain:$stuname:$namespace:$symb:$namevalue:$laststore","$home");
6696: }
6697:
6698: # -------------------------------------------------------------- Critical Store
6699:
6700: sub cstore {
6701: my ($storehash,$symb,$namespace,$domain,$stuname,$laststore) = @_;
6702: my $home='';
6703:
6704: if ($stuname) { $home=&homeserver($stuname,$domain); }
6705:
6706: $symb=&symbclean($symb);
6707: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
6708:
6709: if (!$domain) { $domain=$env{'user.domain'}; }
6710: if (!$stuname) { $stuname=$env{'user.name'}; }
6711:
6712: &devalidate($symb,$stuname,$domain);
6713:
6714: $symb=escape($symb);
6715: if (!$namespace) {
6716: unless ($namespace=$env{'request.course.id'}) {
6717: return '';
6718: }
6719: }
6720: if (!$home) { $home=$env{'user.home'}; }
6721:
6722: $$storehash{'ip'}=&get_requestor_ip();
6723: $$storehash{'host'}=$perlvar{'lonHostID'};
6724:
6725: my $namevalue='';
6726: foreach my $key (keys(%$storehash)) {
6727: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
6728: }
6729: $namevalue=~s/\&$//;
6730: &courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue);
6731: return critical
6732: ("store:$domain:$stuname:$namespace:$symb:$namevalue:$laststore","$home");
6733: }
6734:
6735: # --------------------------------------------------------------------- Restore
6736:
6737: sub restore {
6738: my ($symb,$namespace,$domain,$stuname) = @_;
6739: my $home='';
6740:
6741: if ($stuname) { $home=&homeserver($stuname,$domain); }
6742:
6743: if (!$symb) {
6744: return if ($namespace eq 'courserequests');
6745: unless ($symb=escape(&symbread())) { return ''; }
6746: } else {
6747: unless ($namespace eq 'courserequests') {
6748: $symb=&escape(&symbclean($symb));
6749: }
6750: }
6751: if (!$namespace) {
6752: unless ($namespace=$env{'request.course.id'}) {
6753: return '';
6754: }
6755: }
6756: if (!$domain) { $domain=$env{'user.domain'}; }
6757: if (!$stuname) { $stuname=$env{'user.name'}; }
6758: if (!$home) { $home=$env{'user.home'}; }
6759: my $answer=&reply("restore:$domain:$stuname:$namespace:$symb","$home");
6760:
6761: my %returnhash=();
6762: foreach my $line (split(/\&/,$answer)) {
6763: my ($name,$value)=split(/\=/,$line);
6764: $returnhash{&unescape($name)}=&thaw_unescape($value);
6765: }
6766: my $version;
6767: for ($version=1;$version<=$returnhash{'version'};$version++) {
6768: foreach my $item (split(/\:/,$returnhash{$version.':keys'})) {
6769: $returnhash{$item}=$returnhash{$version.':'.$item};
6770: }
6771: }
6772: return %returnhash;
6773: }
6774:
6775: # ---------------------------------------------------------- Course Description
6776: #
6777: #
6778:
6779: sub coursedescription {
6780: my ($courseid,$args)=@_;
6781: $courseid=~s/^\///;
6782: $courseid=~s/\_/\//g;
6783: my ($cdomain,$cnum)=split(/\//,$courseid);
6784: my $chome=&homeserver($cnum,$cdomain);
6785: my $normalid=$cdomain.'_'.$cnum;
6786: # need to always cache even if we get errors otherwise we keep
6787: # trying and trying and trying to get the course description.
6788: my %envhash=();
6789: my %returnhash=();
6790:
6791: my $expiretime=600;
6792: if ($env{'request.course.id'} eq $normalid) {
6793: $expiretime=120;
6794: }
6795:
6796: my $prefix='course.'.$cdomain.'_'.$cnum.'.';
6797: if (!$args->{'freshen_cache'}
6798: && ((time-$env{$prefix.'last_cache'}) < $expiretime) ) {
6799: foreach my $key (keys(%env)) {
6800: next if ($key !~ /^\Q$prefix\E(.*)/);
6801: my ($setting) = $1;
6802: $returnhash{$setting} = $env{$key};
6803: }
6804: return %returnhash;
6805: }
6806:
6807: # get the data again
6808:
6809: if (!$args->{'one_time'}) {
6810: $envhash{'course.'.$normalid.'.last_cache'}=time;
6811: }
6812:
6813: if ($chome ne 'no_host') {
6814: %returnhash=&dump('environment',$cdomain,$cnum);
6815: if (!exists($returnhash{'con_lost'})) {
6816: my $username = $env{'user.name'}; # Defult username
6817: if(defined $args->{'user'}) {
6818: $username = $args->{'user'};
6819: }
6820: $returnhash{'home'}= $chome;
6821: $returnhash{'domain'} = $cdomain;
6822: $returnhash{'num'} = $cnum;
6823: if (!defined($returnhash{'type'})) {
6824: $returnhash{'type'} = 'Course';
6825: }
6826: while (my ($name,$value) = each %returnhash) {
6827: $envhash{'course.'.$normalid.'.'.$name}=$value;
6828: }
6829: $returnhash{'url'}=&clutter($returnhash{'url'});
6830: $returnhash{'fn'}=LONCAPA::tempdir() .
6831: $username.'_'.$cdomain.'_'.$cnum;
6832: $envhash{'course.'.$normalid.'.home'}=$chome;
6833: $envhash{'course.'.$normalid.'.domain'}=$cdomain;
6834: $envhash{'course.'.$normalid.'.num'}=$cnum;
6835: }
6836: }
6837: if (!$args->{'one_time'}) {
6838: &appenv(\%envhash);
6839: }
6840: return %returnhash;
6841: }
6842:
6843: sub update_released_required {
6844: my ($needsrelease,$cdom,$cnum,$chome,$cid) = @_;
6845: if ($cdom eq '' || $cnum eq '' || $chome eq '' || $cid eq '') {
6846: $cid = $env{'request.course.id'};
6847: $cdom = $env{'course.'.$cid.'.domain'};
6848: $cnum = $env{'course.'.$cid.'.num'};
6849: $chome = $env{'course.'.$cid.'.home'};
6850: }
6851: if ($needsrelease) {
6852: my %curr_reqd_hash = &userenvironment($cdom,$cnum,'internal.releaserequired');
6853: my $needsupdate;
6854: if ($curr_reqd_hash{'internal.releaserequired'} eq '') {
6855: $needsupdate = 1;
6856: } else {
6857: my ($currmajor,$currminor) = split(/\./,$curr_reqd_hash{'internal.releaserequired'});
6858: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
6859: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
6860: $needsupdate = 1;
6861: }
6862: }
6863: if ($needsupdate) {
6864: my %needshash = (
6865: 'internal.releaserequired' => $needsrelease,
6866: );
6867: my $putresult = &put('environment',\%needshash,$cdom,$cnum);
6868: if ($putresult eq 'ok') {
6869: &appenv({'course.'.$cid.'.internal.releaserequired' => $needsrelease});
6870: my %crsinfo = &courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.');
6871: if (ref($crsinfo{$cid}) eq 'HASH') {
6872: $crsinfo{$cid}{'releaserequired'} = $needsrelease;
6873: &courseidput($cdom,\%crsinfo,$chome,'notime');
6874: }
6875: }
6876: }
6877: }
6878: return;
6879: }
6880:
6881: # -------------------------------------------------See if a user is privileged
6882:
6883: sub privileged {
6884: my ($username,$domain,$possdomains,$possroles)=@_;
6885: my $now = time;
6886: my $roles;
6887: if (ref($possroles) eq 'ARRAY') {
6888: $roles = $possroles;
6889: } else {
6890: $roles = ['dc','su'];
6891: }
6892: if (ref($possdomains) eq 'ARRAY') {
6893: my %privileged = &privileged_by_domain($possdomains,$roles);
6894: foreach my $dom (@{$possdomains}) {
6895: if (($username =~ /^$match_username$/) && ($domain =~ /^$match_domain$/) &&
6896: (ref($privileged{$dom}) eq 'HASH')) {
6897: foreach my $role (@{$roles}) {
6898: if (ref($privileged{$dom}{$role}) eq 'HASH') {
6899: if (exists($privileged{$dom}{$role}{$username.':'.$domain})) {
6900: my ($end,$start) = split(/:/,$privileged{$dom}{$role}{$username.':'.$domain});
6901: return 1 unless (($end && $end < $now) ||
6902: ($start && $start > $now));
6903: }
6904: }
6905: }
6906: }
6907: }
6908: } else {
6909: my %rolesdump = &dump("roles", $domain, $username) or return 0;
6910: my $now = time;
6911:
6912: for my $role (@rolesdump{grep { ! /^rolesdef_/ } keys(%rolesdump)}) {
6913: my ($trole, $tend, $tstart) = split(/_/, $role);
6914: if (grep(/^\Q$trole\E$/,@{$roles})) {
6915: return 1 unless ($tend && $tend < $now)
6916: or ($tstart && $tstart > $now);
6917: }
6918: }
6919: }
6920: return 0;
6921: }
6922:
6923: sub privileged_by_domain {
6924: my ($domains,$roles) = @_;
6925: my %privileged = ();
6926: my $cachetime = 60*60*24;
6927: my $now = time;
6928: unless ((ref($domains) eq 'ARRAY') && (ref($roles) eq 'ARRAY')) {
6929: return %privileged;
6930: }
6931: foreach my $dom (@{$domains}) {
6932: next if (ref($privileged{$dom}) eq 'HASH');
6933: my $needroles;
6934: foreach my $role (@{$roles}) {
6935: my ($result,$cached)=&is_cached_new('priv_'.$role,$dom);
6936: if (defined($cached)) {
6937: if (ref($result) eq 'HASH') {
6938: $privileged{$dom}{$role} = $result;
6939: }
6940: } else {
6941: $needroles = 1;
6942: }
6943: }
6944: if ($needroles) {
6945: my %dompersonnel = &get_domain_roles($dom,$roles);
6946: $privileged{$dom} = {};
6947: foreach my $server (keys(%dompersonnel)) {
6948: if (ref($dompersonnel{$server}) eq 'HASH') {
6949: foreach my $item (keys(%{$dompersonnel{$server}})) {
6950: my ($trole,$uname,$udom,$rest) = split(/:/,$item,4);
6951: my ($end,$start) = split(/:/,$dompersonnel{$server}{$item});
6952: next if ($end && $end < $now);
6953: $privileged{$dom}{$trole}{$uname.':'.$udom} =
6954: $dompersonnel{$server}{$item};
6955: }
6956: }
6957: }
6958: if (ref($privileged{$dom}) eq 'HASH') {
6959: foreach my $role (@{$roles}) {
6960: if (ref($privileged{$dom}{$role}) eq 'HASH') {
6961: &do_cache_new('priv_'.$role,$dom,$privileged{$dom}{$role},$cachetime);
6962: } else {
6963: my %hash = ();
6964: &do_cache_new('priv_'.$role,$dom,\%hash,$cachetime);
6965: }
6966: }
6967: }
6968: }
6969: }
6970: return %privileged;
6971: }
6972:
6973: # -------------------------------------------------------- Get user privileges
6974:
6975: sub rolesinit {
6976: my ($domain, $username) = @_;
6977: my %userroles = ('user.login.time' => time);
6978: my %rolesdump = &dump("roles", $domain, $username) or return \%userroles;
6979:
6980: # firstaccess and timerinterval are related to timed maps/resources.
6981: # also, blocking can be triggered by an activating timer
6982: # it's saved in the user's %env.
6983: my %firstaccess = &dump('firstaccesstimes', $domain, $username);
6984: my %timerinterval = &dump('timerinterval', $domain, $username);
6985: my (%coursetimerstarts, %firstaccchk, %firstaccenv, %coursetimerintervals,
6986: %timerintchk, %timerintenv, %coauthorenv);
6987:
6988: foreach my $key (keys(%firstaccess)) {
6989: my ($cid, $rest) = split(/\0/, $key);
6990: $coursetimerstarts{$cid}{$rest} = $firstaccess{$key};
6991: }
6992:
6993: foreach my $key (keys(%timerinterval)) {
6994: my ($cid,$rest) = split(/\0/,$key);
6995: $coursetimerintervals{$cid}{$rest} = $timerinterval{$key};
6996: }
6997:
6998: my %allroles=();
6999: my %allgroups=();
7000: my %gotcoauconfig=();
7001:
7002: for my $area (grep { ! /^rolesdef_/ } keys(%rolesdump)) {
7003: my $role = $rolesdump{$area};
7004: $area =~ s/\_\w\w$//;
7005:
7006: my ($trole, $tend, $tstart, $group_privs);
7007:
7008: if ($role =~ /^cr/) {
7009: # Custom role, defined by a user
7010: # e.g., user.role.cr/msu/smith/mynewrole
7011: if ($role =~ m|^(cr/$match_domain/$match_username/[a-zA-Z0-9]+)_(.*)$|) {
7012: $trole = $1;
7013: ($tend, $tstart) = split('_', $2);
7014: } else {
7015: $trole = $role;
7016: }
7017: } elsif ($role =~ m|^gr/|) {
7018: # Role of member in a group, defined within a course/community
7019: # e.g., user.role.gr/msu/04935610a19ee4a5fmsul1/leopards
7020: ($trole, $tend, $tstart) = split(/_/, $role);
7021: next if $tstart eq '-1';
7022: ($trole, $group_privs) = split(/\//, $trole);
7023: $group_privs = &unescape($group_privs);
7024: } else {
7025: # Just a normal role, defined in roles.tab
7026: ($trole, $tend, $tstart) = split(/_/,$role);
7027: }
7028:
7029: my %new_role = &set_arearole($trole,$area,$tstart,$tend,$domain,
7030: $username);
7031: @userroles{keys(%new_role)} = @new_role{keys(%new_role)};
7032:
7033: # role expired or not available yet?
7034: $trole = '' if ($tend != 0 && $tend < $userroles{'user.login.time'}) or
7035: ($tstart != 0 && $tstart > $userroles{'user.login.time'});
7036:
7037: next if $area eq '' or $trole eq '';
7038:
7039: my $spec = "$trole.$area";
7040: my ($tdummy, $tdomain, $trest) = split(/\//, $area);
7041:
7042: if ($trole =~ /^cr\//) {
7043: # Custom role, defined by a user
7044: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
7045: } elsif ($trole eq 'gr') {
7046: # Role of a member in a group, defined within a course/community
7047: &group_roleprivs(\%allgroups,$area,$group_privs,$tend,$tstart);
7048: next;
7049: } else {
7050: # Normal role, defined in roles.tab
7051: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
7052: if (($trole eq 'ca') || ($trole eq 'aa')) {
7053: (undef,my ($audom,$auname)) = split(/\//,$area);
7054: unless ($gotcoauconfig{$area}) {
7055: my @ca_settings = ('authoreditors','coauthorlist','coauthoroptin');
7056: my %info = &userenvironment($audom,$auname,@ca_settings);
7057: $gotcoauconfig{$area} = 1;
7058: foreach my $item (@ca_settings) {
7059: if (exists($info{$item})) {
7060: my $name = $item;
7061: if ($item eq 'authoreditors') {
7062: $name = 'editors';
7063: }
7064: $coauthorenv{"environment.internal.$name.$area"} = $info{$item};
7065: }
7066: }
7067: }
7068: }
7069: }
7070:
7071: my $cid = $tdomain.'_'.$trest;
7072: unless ($firstaccchk{$cid}) {
7073: if (ref($coursetimerstarts{$cid}) eq 'HASH') {
7074: foreach my $item (keys(%{$coursetimerstarts{$cid}})) {
7075: $firstaccenv{'course.'.$cid.'.firstaccess.'.$item} =
7076: $coursetimerstarts{$cid}{$item};
7077: }
7078: }
7079: $firstaccchk{$cid} = 1;
7080: }
7081: unless ($timerintchk{$cid}) {
7082: if (ref($coursetimerintervals{$cid}) eq 'HASH') {
7083: foreach my $item (keys(%{$coursetimerintervals{$cid}})) {
7084: $timerintenv{'course.'.$cid.'.timerinterval.'.$item} =
7085: $coursetimerintervals{$cid}{$item};
7086: }
7087: }
7088: $timerintchk{$cid} = 1;
7089: }
7090: }
7091:
7092: @userroles{'user.author','user.adv','user.rar'} = &set_userprivs(\%userroles,
7093: \%allroles, \%allgroups);
7094: $env{'user.adv'} = $userroles{'user.adv'};
7095: $env{'user.rar'} = $userroles{'user.rar'};
7096:
7097: return (\%userroles,\%firstaccenv,\%timerintenv,\%coauthorenv);
7098: }
7099:
7100: sub set_arearole {
7101: my ($trole,$area,$tstart,$tend,$domain,$username,$nolog) = @_;
7102: unless ($nolog) {
7103: # log the associated role with the area
7104: &userrolelog($trole,$username,$domain,$area,$tstart,$tend);
7105: }
7106: return ('user.role.'.$trole.'.'.$area => $tstart.'.'.$tend);
7107: }
7108:
7109: sub custom_roleprivs {
7110: my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;
7111: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
7112: my $homsvr = &homeserver($rauthor,$rdomain);
7113: if (&hostname($homsvr) ne '') {
7114: my ($rdummy,$roledef)=
7115: &get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);
7116: if (($rdummy ne 'con_lost') && ($roledef ne '')) {
7117: my ($syspriv,$dompriv,$coursepriv)=split(/\_/,$roledef);
7118: if (defined($syspriv)) {
7119: if ($trest =~ /^$match_community$/) {
7120: $syspriv =~ s/bre\&S//;
7121: }
7122: $$allroles{'cm./'}.=':'.$syspriv;
7123: $$allroles{$spec.'./'}.=':'.$syspriv;
7124: }
7125: if ($tdomain ne '') {
7126: if (defined($dompriv)) {
7127: $$allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv;
7128: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;
7129: }
7130: if (($trest ne '') && (defined($coursepriv))) {
7131: if ($trole =~ m{^cr/$tdomain/$tdomain\Q-domainconfig\E/([^/]+)$}) {
7132: my $rolename = $1;
7133: $coursepriv = &course_adhocrole_privs($rolename,$tdomain,$trest,$coursepriv);
7134: }
7135: $$allroles{'cm.'.$area}.=':'.$coursepriv;
7136: $$allroles{$spec.'.'.$area}.=':'.$coursepriv;
7137: }
7138: }
7139: }
7140: }
7141: }
7142:
7143: sub course_adhocrole_privs {
7144: my ($rolename,$cdom,$cnum,$coursepriv) = @_;
7145: my %overrides = &get('environment',["internal.adhocpriv.$rolename"],$cdom,$cnum);
7146: if ($overrides{"internal.adhocpriv.$rolename"}) {
7147: my (%currprivs,%storeprivs);
7148: foreach my $item (split(/:/,$coursepriv)) {
7149: my ($priv,$restrict) = split(/\&/,$item);
7150: $currprivs{$priv} = $restrict;
7151: }
7152: my (%possadd,%possremove,%full);
7153: foreach my $item (split(/\:/,$Apache::lonnet::pr{'cr:c'})) {
7154: my ($priv,$restrict)=split(/\&/,$item);
7155: $full{$priv} = $restrict;
7156: }
7157: foreach my $item (split(/,/,$overrides{"internal.adhocpriv.$rolename"})) {
7158: next if ($item eq '');
7159: my ($rule,$rest) = split(/=/,$item);
7160: next unless (($rule eq 'off') || ($rule eq 'on'));
7161: foreach my $priv (split(/:/,$rest)) {
7162: if ($priv ne '') {
7163: if ($rule eq 'off') {
7164: $possremove{$priv} = 1;
7165: } else {
7166: $possadd{$priv} = 1;
7167: }
7168: }
7169: }
7170: }
7171: foreach my $priv (sort(keys(%full))) {
7172: if (exists($currprivs{$priv})) {
7173: unless (exists($possremove{$priv})) {
7174: $storeprivs{$priv} = $currprivs{$priv};
7175: }
7176: } elsif (exists($possadd{$priv})) {
7177: $storeprivs{$priv} = $full{$priv};
7178: }
7179: }
7180: $coursepriv = ':'.join(':',map { $_.'&'.$storeprivs{$_}; } sort(keys(%storeprivs)));
7181: }
7182: return $coursepriv;
7183: }
7184:
7185: sub group_roleprivs {
7186: my ($allgroups,$area,$group_privs,$tend,$tstart) = @_;
7187: my $access = 1;
7188: my $now = time;
7189: if (($tend!=0) && ($tend<$now)) { $access = 0; }
7190: if (($tstart!=0) && ($tstart>$now)) { $access=0; }
7191: if ($access) {
7192: my ($course,$group) = ($area =~ m|(/$match_domain/$match_courseid)/([^/]+)$|);
7193: $$allgroups{$course}{$group} .=':'.$group_privs;
7194: }
7195: }
7196:
7197: sub standard_roleprivs {
7198: my ($allroles,$trole,$tdomain,$spec,$trest,$area) = @_;
7199: if (defined($pr{$trole.':s'})) {
7200: $$allroles{'cm./'}.=':'.$pr{$trole.':s'};
7201: $$allroles{$spec.'./'}.=':'.$pr{$trole.':s'};
7202: }
7203: if ($tdomain ne '') {
7204: if (defined($pr{$trole.':d'})) {
7205: $$allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
7206: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
7207: }
7208: if (($trest ne '') && (defined($pr{$trole.':c'}))) {
7209: $$allroles{'cm.'.$area}.=':'.$pr{$trole.':c'};
7210: $$allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'};
7211: }
7212: }
7213: }
7214:
7215: sub set_userprivs {
7216: my ($userroles,$allroles,$allgroups,$groups_roles) = @_;
7217: my $author=0;
7218: my $adv=0;
7219: my $rar=0;
7220: my %grouproles = ();
7221: if (keys(%{$allgroups}) > 0) {
7222: my @groupkeys;
7223: foreach my $role (keys(%{$allroles})) {
7224: push(@groupkeys,$role);
7225: }
7226: if (ref($groups_roles) eq 'HASH') {
7227: foreach my $key (keys(%{$groups_roles})) {
7228: unless (grep(/^\Q$key\E$/,@groupkeys)) {
7229: push(@groupkeys,$key);
7230: }
7231: }
7232: }
7233: if (@groupkeys > 0) {
7234: foreach my $role (@groupkeys) {
7235: my ($trole,$area,$sec,$extendedarea);
7236: if ($role =~ m-^(\w+|cr/$match_domain/$match_username/\w+)\.(/$match_domain/$match_courseid)(/?\w*)\.-) {
7237: $trole = $1;
7238: $area = $2;
7239: $sec = $3;
7240: $extendedarea = $area.$sec;
7241: if (exists($$allgroups{$area})) {
7242: foreach my $group (keys(%{$$allgroups{$area}})) {
7243: my $spec = $trole.'.'.$extendedarea;
7244: $grouproles{$spec.'.'.$area.'/'.$group} =
7245: $$allgroups{$area}{$group};
7246: }
7247: }
7248: }
7249: }
7250: }
7251: }
7252: foreach my $group (keys(%grouproles)) {
7253: $$allroles{$group} = $grouproles{$group};
7254: }
7255: foreach my $role (keys(%{$allroles})) {
7256: my %thesepriv;
7257: if (($role=~/^au/) || ($role=~/^ca/) || ($role=~/^aa/)) { $author=1; }
7258: foreach my $item (split(/:/,$$allroles{$role})) {
7259: if ($item ne '') {
7260: my ($privilege,$restrictions)=split(/&/,$item);
7261: if ($restrictions eq '') {
7262: $thesepriv{$privilege}='F';
7263: } elsif ($thesepriv{$privilege} ne 'F') {
7264: $thesepriv{$privilege}.=$restrictions;
7265: }
7266: if ($thesepriv{'adv'} eq 'F') { $adv=1; }
7267: if ($thesepriv{'rar'} eq 'F') { $rar=1; }
7268: }
7269: }
7270: my $thesestr='';
7271: foreach my $priv (sort(keys(%thesepriv))) {
7272: $thesestr.=':'.$priv.'&'.$thesepriv{$priv};
7273: }
7274: $userroles->{'user.priv.'.$role} = $thesestr;
7275: }
7276: return ($author,$adv,$rar);
7277: }
7278:
7279: sub role_status {
7280: my ($rolekey,$update,$refresh,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;
7281: if (exists($env{$rolekey}) && $env{$rolekey} ne '') {
7282: my ($one,$two) = split(m{\./},$rolekey,2);
7283: (undef,undef,$$role) = split(/\./,$one,3);
7284: unless (!defined($$role) || $$role eq '') {
7285: $$where = '/'.$two;
7286: $$trolecode=$$role.'.'.$$where;
7287: ($$tstart,$$tend)=split(/\./,$env{$rolekey});
7288: $$tstatus='is';
7289: if ($$tstart && $$tstart>$update) {
7290: $$tstatus='future';
7291: if ($$tstart<$now) {
7292: if ($$tstart && $$tstart>$refresh) {
7293: if (($$where ne '') && ($$role ne '')) {
7294: my (%allroles,%allgroups,$group_privs,
7295: %groups_roles,@rolecodes);
7296: my %userroles = (
7297: 'user.role.'.$$role.'.'.$$where => $$tstart.'.'.$$tend
7298: );
7299: @rolecodes = ('cm');
7300: my $spec=$$role.'.'.$$where;
7301: my ($tdummy,$tdomain,$trest)=split(/\//,$$where);
7302: if ($$role =~ /^cr\//) {
7303: &custom_roleprivs(\%allroles,$$role,$tdomain,$trest,$spec,$$where);
7304: push(@rolecodes,'cr');
7305: } elsif ($$role eq 'gr') {
7306: push(@rolecodes,$$role);
7307: my %rolehash = &get('roles',[$$where.'_'.$$role],$env{'user.domain'},
7308: $env{'user.name'});
7309: my ($trole) = split('_',$rolehash{$$where.'_'.$$role},2);
7310: (undef,my $group_privs) = split(/\//,$trole);
7311: $group_privs = &unescape($group_privs);
7312: &group_roleprivs(\%allgroups,$$where,$group_privs,$$tend,$$tstart);
7313: my %course_roles = &get_my_roles($env{'user.name'},$env{'user.domain'},'userroles',['active'],['cc','co','in','ta','ep','ad','st','cr'],[$tdomain],1);
7314: &get_groups_roles($tdomain,$trest,
7315: \%course_roles,\@rolecodes,
7316: \%groups_roles);
7317: } else {
7318: push(@rolecodes,$$role);
7319: &standard_roleprivs(\%allroles,$$role,$tdomain,$spec,$trest,$$where);
7320: }
7321: my ($author,$adv,$rar)= &set_userprivs(\%userroles,\%allroles,\%allgroups,
7322: \%groups_roles);
7323: &appenv(\%userroles,\@rolecodes);
7324: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$spec);
7325: }
7326: }
7327: $$tstatus = 'is';
7328: }
7329: }
7330: if ($$tend) {
7331: if ($$tend<$update) {
7332: $$tstatus='expired';
7333: } elsif ($$tend<$now) {
7334: $$tstatus='will_not';
7335: }
7336: }
7337: }
7338: }
7339: }
7340:
7341: sub get_groups_roles {
7342: my ($cdom,$rest,$cdom_courseroles,$rolecodes,$groups_roles) = @_;
7343: return unless((ref($cdom_courseroles) eq 'HASH') &&
7344: (ref($rolecodes) eq 'ARRAY') &&
7345: (ref($groups_roles) eq 'HASH'));
7346: if (keys(%{$cdom_courseroles}) > 0) {
7347: my ($cnum) = ($rest =~ /^($match_courseid)/);
7348: if ($cdom ne '' && $cnum ne '') {
7349: foreach my $key (keys(%{$cdom_courseroles})) {
7350: if ($key =~ /^\Q$cnum\E:\Q$cdom\E:([^:]+):?([^:]*)/) {
7351: my $crsrole = $1;
7352: my $crssec = $2;
7353: if ($crsrole =~ /^cr/) {
7354: unless (grep(/^cr$/,@{$rolecodes})) {
7355: push(@{$rolecodes},'cr');
7356: }
7357: } else {
7358: unless(grep(/^\Q$crsrole\E$/,@{$rolecodes})) {
7359: push(@{$rolecodes},$crsrole);
7360: }
7361: }
7362: my $rolekey = "$crsrole./$cdom/$cnum";
7363: if ($crssec ne '') {
7364: $rolekey .= "/$crssec";
7365: }
7366: $rolekey .= './';
7367: $groups_roles->{$rolekey} = $rolecodes;
7368: }
7369: }
7370: }
7371: }
7372: return;
7373: }
7374:
7375: sub delete_env_groupprivs {
7376: my ($where,$courseroles,$possroles) = @_;
7377: return unless((ref($courseroles) eq 'HASH') && (ref($possroles) eq 'ARRAY'));
7378: my ($dummy,$udom,$uname,$group) = split(/\//,$where);
7379: unless (ref($courseroles->{$udom}) eq 'HASH') {
7380: %{$courseroles->{$udom}} =
7381: &get_my_roles('','','userroles',['active'],
7382: $possroles,[$udom],1);
7383: }
7384: if (ref($courseroles->{$udom}) eq 'HASH') {
7385: foreach my $item (keys(%{$courseroles->{$udom}})) {
7386: my ($cnum,$cdom,$crsrole,$crssec) = split(/:/,$item);
7387: my $area = '/'.$cdom.'/'.$cnum;
7388: my $privkey = "user.priv.$crsrole.$area";
7389: if ($crssec ne '') {
7390: $privkey .= '/'.$crssec;
7391: }
7392: $privkey .= ".$area/$group";
7393: &Apache::lonnet::delenv($privkey,undef,[$crsrole]);
7394: }
7395: }
7396: return;
7397: }
7398:
7399: sub check_adhoc_privs {
7400: my ($cdom,$cnum,$update,$refresh,$now,$checkrole,$caller,$sec) = @_;
7401: my $cckey = 'user.role.'.$checkrole.'./'.$cdom.'/'.$cnum;
7402: if ($sec) {
7403: $cckey .= '/'.$sec;
7404: }
7405: my $setprivs;
7406: if ($env{$cckey}) {
7407: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend);
7408: &role_status($cckey,$update,$refresh,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
7409: unless (($tstatus eq 'is') || ($tstatus eq 'will_not')) {
7410: &set_adhoc_privileges($cdom,$cnum,$checkrole,$caller,$sec);
7411: $setprivs = 1;
7412: }
7413: } else {
7414: &set_adhoc_privileges($cdom,$cnum,$checkrole,$caller,$sec);
7415: $setprivs = 1;
7416: }
7417: return $setprivs;
7418: }
7419:
7420: sub set_adhoc_privileges {
7421: # role can be cc, ca, or cr/<dom>/<dom>-domainconfig/role
7422: my ($dcdom,$pickedcourse,$role,$caller,$sec) = @_;
7423: my $area = '/'.$dcdom.'/'.$pickedcourse;
7424: if ($sec ne '') {
7425: $area .= '/'.$sec;
7426: }
7427: my $spec = $role.'.'.$area;
7428: my %userroles = &set_arearole($role,$area,'','',$env{'user.domain'},
7429: $env{'user.name'},1);
7430: my %rolehash = ();
7431: if ($role =~ m{^\Qcr/$dcdom/$dcdom\E\-domainconfig/(\w+)$}) {
7432: my $rolename = $1;
7433: &custom_roleprivs(\%rolehash,$role,$dcdom,$pickedcourse,$spec,$area);
7434: my %domdef = &get_domain_defaults($dcdom);
7435: if (ref($domdef{'adhocroles'}) eq 'HASH') {
7436: if (ref($domdef{'adhocroles'}{$rolename}) eq 'HASH') {
7437: &appenv({'request.role.desc' => $domdef{'adhocroles'}{$rolename}{'desc'},});
7438: }
7439: }
7440: } else {
7441: &standard_roleprivs(\%rolehash,$role,$dcdom,$spec,$pickedcourse,$area);
7442: }
7443: my ($author,$adv,$rar)= &set_userprivs(\%userroles,\%rolehash);
7444: &appenv(\%userroles,[$role,'cm']);
7445: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$spec);
7446: unless (($caller eq 'constructaccess' && $env{'request.course.id'}) ||
7447: ($caller eq 'tiny')) {
7448: &appenv( {'request.role' => $spec,
7449: 'request.role.domain' => $dcdom,
7450: 'request.course.sec' => $sec,
7451: }
7452: );
7453: my $tadv=0;
7454: if (&allowed('adv') eq 'F') { $tadv=1; }
7455: &appenv({'request.role.adv' => $tadv});
7456: }
7457: }
7458:
7459: # --------------------------------------------------------------- get interface
7460:
7461: sub get {
7462: my ($namespace,$storearr,$udomain,$uname)=@_;
7463: my $items='';
7464: foreach my $item (@$storearr) {
7465: $items.=&escape($item).'&';
7466: }
7467: $items=~s/\&$//;
7468: if (!$udomain) { $udomain=$env{'user.domain'}; }
7469: if (!$uname) { $uname=$env{'user.name'}; }
7470: my $uhome=&homeserver($uname,$udomain);
7471:
7472: my $rep=&reply("get:$udomain:$uname:$namespace:$items",$uhome);
7473: my @pairs=split(/\&/,$rep);
7474: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
7475: return @pairs;
7476: }
7477: my %returnhash=();
7478: my $i=0;
7479: foreach my $item (@$storearr) {
7480: $returnhash{$item}=&thaw_unescape($pairs[$i]);
7481: $i++;
7482: }
7483: return %returnhash;
7484: }
7485:
7486: # --------------------------------------------------------------- del interface
7487:
7488: sub del {
7489: my ($namespace,$storearr,$udomain,$uname)=@_;
7490: my $items='';
7491: foreach my $item (@$storearr) {
7492: $items.=&escape($item).'&';
7493: }
7494:
7495: $items=~s/\&$//;
7496: if (!$udomain) { $udomain=$env{'user.domain'}; }
7497: if (!$uname) { $uname=$env{'user.name'}; }
7498: my $uhome=&homeserver($uname,$udomain);
7499: return &reply("del:$udomain:$uname:$namespace:$items",$uhome);
7500: }
7501:
7502: # -------------------------------------------------------------- dump interface
7503:
7504: sub unserialize {
7505: my ($rep, $escapedkeys) = @_;
7506:
7507: return {} if $rep =~ /^error/;
7508:
7509: my %returnhash=();
7510: foreach my $item (split(/\&/,$rep)) {
7511: my ($key, $value) = split(/=/, $item, 2);
7512: $key = unescape($key) unless $escapedkeys;
7513: next if $key =~ /^error: 2 /;
7514: $returnhash{$key} = &thaw_unescape($value);
7515: }
7516: #return %returnhash;
7517: return \%returnhash;
7518: }
7519:
7520: # see Lond::dump_with_regexp
7521: # if $escapedkeys hash keys won't get unescaped.
7522: sub dump {
7523: my ($namespace,$udomain,$uname,$regexp,$range,$escapedkeys,$encrypt)=@_;
7524: if (!$udomain) { $udomain=$env{'user.domain'}; }
7525: if (!$uname) { $uname=$env{'user.name'}; }
7526: my $uhome=&homeserver($uname,$udomain);
7527:
7528: if ($regexp) {
7529: $regexp=&escape($regexp);
7530: } else {
7531: $regexp='.';
7532: }
7533: if (grep { $_ eq $uhome } current_machine_ids()) {
7534: # user is hosted on this machine
7535: my $reply = LONCAPA::Lond::dump_with_regexp(join(":", ($udomain,
7536: $uname, $namespace, $regexp, $range)), $perlvar{'lonVersion'});
7537: return %{unserialize($reply, $escapedkeys)};
7538: }
7539: my $rep;
7540: if ($encrypt) {
7541: $rep=&reply("encrypt:edump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
7542: } else {
7543: $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
7544: }
7545: my @pairs=split(/\&/,$rep);
7546: my %returnhash=();
7547: if (!($rep =~ /^error/ )) {
7548: foreach my $item (@pairs) {
7549: my ($key,$value)=split(/=/,$item,2);
7550: $key = unescape($key) unless $escapedkeys;
7551: #$key = &unescape($key);
7552: next if ($key =~ /^error: 2 /);
7553: $returnhash{$key}=&thaw_unescape($value);
7554: }
7555: }
7556: return %returnhash;
7557: }
7558:
7559:
7560: # --------------------------------------------------------- dumpstore interface
7561:
7562: sub dumpstore {
7563: my ($namespace,$udomain,$uname,$regexp,$range)=@_;
7564: # same as dump but keys must be escaped. They may contain colon separated
7565: # lists of values that may themself contain colons (e.g. symbs).
7566: return &dump($namespace, $udomain, $uname, $regexp, $range, 1);
7567: }
7568:
7569: # -------------------------------------------------------------- keys interface
7570:
7571: sub getkeys {
7572: my ($namespace,$udomain,$uname)=@_;
7573: if (!$udomain) { $udomain=$env{'user.domain'}; }
7574: if (!$uname) { $uname=$env{'user.name'}; }
7575: my $uhome=&homeserver($uname,$udomain);
7576: my $rep=reply("keys:$udomain:$uname:$namespace",$uhome);
7577: my @keyarray=();
7578: foreach my $key (split(/\&/,$rep)) {
7579: next if ($key =~ /^error: 2 /);
7580: push(@keyarray,&unescape($key));
7581: }
7582: return @keyarray;
7583: }
7584:
7585: # --------------------------------------------------------------- currentdump
7586: sub currentdump {
7587: my ($courseid,$sdom,$sname)=@_;
7588: $courseid = $env{'request.course.id'} if (! defined($courseid));
7589: $sdom = $env{'user.domain'} if (! defined($sdom));
7590: $sname = $env{'user.name'} if (! defined($sname));
7591: my $uhome = &homeserver($sname,$sdom);
7592: my $rep;
7593:
7594: if (grep { $_ eq $uhome } current_machine_ids()) {
7595: $rep = LONCAPA::Lond::dump_profile_database(join(":", ($sdom, $sname,
7596: $courseid)));
7597: } else {
7598: $rep = reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);
7599: }
7600:
7601: return if ($rep =~ /^(error:|no_such_host)/);
7602: #
7603: my %returnhash=();
7604: #
7605: if ($rep eq 'unknown_cmd') {
7606: # an old lond will not know currentdump
7607: # Do a dump and make it look like a currentdump
7608: my @tmp = &dumpstore($courseid,$sdom,$sname,'.');
7609: return if ($tmp[0] =~ /^(error:|no_such_host)/);
7610: my %hash = @tmp;
7611: @tmp=();
7612: %returnhash = %{&convert_dump_to_currentdump(\%hash)};
7613: } else {
7614: my @pairs=split(/\&/,$rep);
7615: foreach my $pair (@pairs) {
7616: my ($key,$value)=split(/=/,$pair,2);
7617: my ($symb,$param) = split(/:/,$key);
7618: $returnhash{&unescape($symb)}->{&unescape($param)} =
7619: &thaw_unescape($value);
7620: }
7621: }
7622: return %returnhash;
7623: }
7624:
7625: sub convert_dump_to_currentdump{
7626: my %hash = %{shift()};
7627: my %returnhash;
7628: # Code ripped from lond, essentially. The only difference
7629: # here is the unescaping done by lonnet::dump(). Conceivably
7630: # we might run in to problems with parameter names =~ /^v\./
7631: while (my ($key,$value) = each(%hash)) {
7632: my ($v,$symb,$param) = split(/:/,$key);
7633: $symb = &unescape($symb);
7634: $param = &unescape($param);
7635: next if ($v eq 'version' || $symb eq 'keys');
7636: next if (exists($returnhash{$symb}) &&
7637: exists($returnhash{$symb}->{$param}) &&
7638: $returnhash{$symb}->{'v.'.$param} > $v);
7639: $returnhash{$symb}->{$param}=$value;
7640: $returnhash{$symb}->{'v.'.$param}=$v;
7641: }
7642: #
7643: # Remove all of the keys in the hashes which keep track of
7644: # the version of the parameter.
7645: while (my ($symb,$param_hash) = each(%returnhash)) {
7646: # use a foreach because we are going to delete from the hash.
7647: foreach my $key (keys(%$param_hash)) {
7648: delete($param_hash->{$key}) if ($key =~ /^v\./);
7649: }
7650: }
7651: return \%returnhash;
7652: }
7653:
7654: # ------------------------------------------------------ critical inc interface
7655:
7656: sub cinc {
7657: return &inc(@_,'critical');
7658: }
7659:
7660: # --------------------------------------------------------------- inc interface
7661:
7662: sub inc {
7663: my ($namespace,$store,$udomain,$uname,$critical) = @_;
7664: if (!$udomain) { $udomain=$env{'user.domain'}; }
7665: if (!$uname) { $uname=$env{'user.name'}; }
7666: my $uhome=&homeserver($uname,$udomain);
7667: my $items='';
7668: if (! ref($store)) {
7669: # got a single value, so use that instead
7670: $items = &escape($store).'=&';
7671: } elsif (ref($store) eq 'SCALAR') {
7672: $items = &escape($$store).'=&';
7673: } elsif (ref($store) eq 'ARRAY') {
7674: $items = join('=&',map {&escape($_);} @{$store});
7675: } elsif (ref($store) eq 'HASH') {
7676: while (my($key,$value) = each(%{$store})) {
7677: $items.= &escape($key).'='.&escape($value).'&';
7678: }
7679: }
7680: $items=~s/\&$//;
7681: if ($critical) {
7682: return &critical("inc:$udomain:$uname:$namespace:$items",$uhome);
7683: } else {
7684: return &reply("inc:$udomain:$uname:$namespace:$items",$uhome);
7685: }
7686: }
7687:
7688: # --------------------------------------------------------------- put interface
7689:
7690: sub put {
7691: my ($namespace,$storehash,$udomain,$uname,$encrypt)=@_;
7692: if (!$udomain) { $udomain=$env{'user.domain'}; }
7693: if (!$uname) { $uname=$env{'user.name'}; }
7694: my $uhome=&homeserver($uname,$udomain);
7695: my $items='';
7696: foreach my $item (keys(%$storehash)) {
7697: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
7698: }
7699: $items=~s/\&$//;
7700: if ($encrypt) {
7701: return &reply("encrypt:put:$udomain:$uname:$namespace:$items",$uhome);
7702: } else {
7703: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
7704: }
7705: }
7706:
7707: # ------------------------------------------------------------ newput interface
7708:
7709: sub newput {
7710: my ($namespace,$storehash,$udomain,$uname)=@_;
7711: if (!$udomain) { $udomain=$env{'user.domain'}; }
7712: if (!$uname) { $uname=$env{'user.name'}; }
7713: my $uhome=&homeserver($uname,$udomain);
7714: my $items='';
7715: foreach my $key (keys(%$storehash)) {
7716: $items.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
7717: }
7718: $items=~s/\&$//;
7719: return &reply("newput:$udomain:$uname:$namespace:$items",$uhome);
7720: }
7721:
7722: # --------------------------------------------------------- putstore interface
7723:
7724: sub putstore {
7725: my ($namespace,$symb,$version,$storehash,$udomain,$uname,$tolog)=@_;
7726: if (!$udomain) { $udomain=$env{'user.domain'}; }
7727: if (!$uname) { $uname=$env{'user.name'}; }
7728: my $uhome=&homeserver($uname,$udomain);
7729: my $items='';
7730: foreach my $key (keys(%$storehash)) {
7731: $items.= &escape($key).'='.&freeze_escape($storehash->{$key}).'&';
7732: }
7733: $items=~s/\&$//;
7734: my $esc_symb=&escape($symb);
7735: my $esc_v=&escape($version);
7736: my $reply =
7737: &reply("putstore:$udomain:$uname:$namespace:$esc_symb:$esc_v:$items",
7738: $uhome);
7739: if (($tolog) && ($reply eq 'ok')) {
7740: my $namevalue='';
7741: foreach my $key (keys(%{$storehash})) {
7742: $namevalue.=&escape($key).'='.&freeze_escape($storehash->{$key}).'&';
7743: }
7744: my $ip = &get_requestor_ip();
7745: $namevalue .= 'ip='.&escape($ip).
7746: '&host='.&escape($perlvar{'lonHostID'}).
7747: '&version='.$esc_v.
7748: '&by='.&escape($env{'user.name'}.':'.$env{'user.domain'});
7749: &courselog($symb.':'.$uname.':'.$udomain.':PUTSTORE:'.$namevalue);
7750: }
7751: if ($reply eq 'unknown_cmd') {
7752: # gfall back to way things use to be done
7753: return &old_putstore($namespace,$symb,$version,$storehash,$udomain,
7754: $uname);
7755: }
7756: return $reply;
7757: }
7758:
7759: sub old_putstore {
7760: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
7761: if (!$udomain) { $udomain=$env{'user.domain'}; }
7762: if (!$uname) { $uname=$env{'user.name'}; }
7763: my $uhome=&homeserver($uname,$udomain);
7764: my %newstorehash;
7765: foreach my $item (keys(%$storehash)) {
7766: my $key = $version.':'.&escape($symb).':'.$item;
7767: $newstorehash{$key} = $storehash->{$item};
7768: }
7769: my $items='';
7770: my %allitems = ();
7771: foreach my $item (keys(%newstorehash)) {
7772: if ($item =~ m/^([^\:]+):([^\:]+):([^\:]+)$/) {
7773: my $key = $1.':keys:'.$2;
7774: $allitems{$key} .= $3.':';
7775: }
7776: $items.=$item.'='.&freeze_escape($newstorehash{$item}).'&';
7777: }
7778: foreach my $item (keys(%allitems)) {
7779: $allitems{$item} =~ s/\:$//;
7780: $items.= $item.'='.$allitems{$item}.'&';
7781: }
7782: $items=~s/\&$//;
7783: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
7784: }
7785:
7786: # ------------------------------------------------------ critical put interface
7787:
7788: sub cput {
7789: my ($namespace,$storehash,$udomain,$uname)=@_;
7790: if (!$udomain) { $udomain=$env{'user.domain'}; }
7791: if (!$uname) { $uname=$env{'user.name'}; }
7792: my $uhome=&homeserver($uname,$udomain);
7793: my $items='';
7794: foreach my $item (keys(%$storehash)) {
7795: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
7796: }
7797: $items=~s/\&$//;
7798: return &critical("put:$udomain:$uname:$namespace:$items",$uhome);
7799: }
7800:
7801: # -------------------------------------------------------------- eget interface
7802:
7803: sub eget {
7804: my ($namespace,$storearr,$udomain,$uname)=@_;
7805: my $items='';
7806: foreach my $item (@$storearr) {
7807: $items.=&escape($item).'&';
7808: }
7809: $items=~s/\&$//;
7810: if (!$udomain) { $udomain=$env{'user.domain'}; }
7811: if (!$uname) { $uname=$env{'user.name'}; }
7812: my $uhome=&homeserver($uname,$udomain);
7813: my $rep=&reply("eget:$udomain:$uname:$namespace:$items",$uhome);
7814: my @pairs=split(/\&/,$rep);
7815: my %returnhash=();
7816: my $i=0;
7817: foreach my $item (@$storearr) {
7818: $returnhash{$item}=&thaw_unescape($pairs[$i]);
7819: $i++;
7820: }
7821: return %returnhash;
7822: }
7823:
7824: # ------------------------------------------------------------ tmpput interface
7825: sub tmpput {
7826: my ($storehash,$server,$context)=@_;
7827: my $items='';
7828: foreach my $item (keys(%$storehash)) {
7829: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
7830: }
7831: $items=~s/\&$//;
7832: if (defined($context)) {
7833: $items .= ':'.&escape($context);
7834: }
7835: return &reply("tmpput:$items",$server);
7836: }
7837:
7838: # ------------------------------------------------------------ tmpget interface
7839: sub tmpget {
7840: my ($token,$server)=@_;
7841: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
7842: my $rep=&reply("tmpget:$token",$server);
7843: my %returnhash;
7844: if ($rep =~ /^(con_lost|error|no_such_host)/i) {
7845: return %returnhash;
7846: }
7847: foreach my $item (split(/\&/,$rep)) {
7848: my ($key,$value)=split(/=/,$item);
7849: $returnhash{&unescape($key)}=&thaw_unescape($value);
7850: }
7851: return %returnhash;
7852: }
7853:
7854: # ------------------------------------------------------------ tmpdel interface
7855: sub tmpdel {
7856: my ($token,$server)=@_;
7857: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
7858: return &reply("tmpdel:$token",$server);
7859: }
7860:
7861: # ------------------------------------------------------------ get_timebased_id
7862:
7863: sub get_timebased_id {
7864: my ($prefix,$keyid,$namespace,$cdom,$cnum,$idtype,$who,$locktries,
7865: $maxtries) = @_;
7866: my ($newid,$error,$dellock);
7867: unless (($prefix =~ /^\w+$/) && ($keyid =~ /^\w+$/) && ($namespace ne '')) {
7868: return ('','ok','invalid call to get suffix');
7869: }
7870:
7871: # set defaults for any optional args for which values were not supplied
7872: if ($who eq '') {
7873: $who = $env{'user.name'}.':'.$env{'user.domain'};
7874: }
7875: if (!$locktries) {
7876: $locktries = 3;
7877: }
7878: if (!$maxtries) {
7879: $maxtries = 10;
7880: }
7881:
7882: if (($cdom eq '') || ($cnum eq '')) {
7883: if ($env{'request.course.id'}) {
7884: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
7885: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
7886: }
7887: if (($cdom eq '') || ($cnum eq '')) {
7888: return ('','ok','call to get suffix not in course context');
7889: }
7890: }
7891:
7892: # construct locking item
7893: my $lockhash = {
7894: $prefix."\0".'locked_'.$keyid => $who,
7895: };
7896: my $tries = 0;
7897:
7898: # attempt to get lock on nohist_$namespace file
7899: my $gotlock = &newput('nohist_'.$namespace,$lockhash,$cdom,$cnum);
7900: while (($gotlock ne 'ok') && $tries <$locktries) {
7901: $tries ++;
7902: sleep 1;
7903: $gotlock = &newput('nohist_'.$namespace,$lockhash,$cdom,$cnum);
7904: }
7905:
7906: # attempt to get unique identifier, based on current timestamp
7907: if ($gotlock eq 'ok') {
7908: my %inuse = &dump('nohist_'.$namespace,$cdom,$cnum,$prefix);
7909: my $id = time;
7910: $newid = $id;
7911: if ($idtype eq 'addcode') {
7912: $newid .= &sixnum_code();
7913: }
7914: my $idtries = 0;
7915: while (exists($inuse{$prefix."\0".$newid}) && $idtries < $maxtries) {
7916: if ($idtype eq 'concat') {
7917: $newid = $id.$idtries;
7918: } elsif ($idtype eq 'addcode') {
7919: $newid = $newid.&sixnum_code();
7920: } else {
7921: $newid ++;
7922: }
7923: $idtries ++;
7924: }
7925: if (!exists($inuse{$prefix."\0".$newid})) {
7926: my %new_item = (
7927: $prefix."\0".$newid => $who,
7928: );
7929: my $putresult = &put('nohist_'.$namespace,\%new_item,
7930: $cdom,$cnum);
7931: if ($putresult ne 'ok') {
7932: undef($newid);
7933: $error = 'error saving new item: '.$putresult;
7934: }
7935: } else {
7936: undef($newid);
7937: $error = ('error: no unique suffix available for the new item ');
7938: }
7939: # remove lock
7940: my @del_lock = ($prefix."\0".'locked_'.$keyid);
7941: $dellock = &Apache::lonnet::del('nohist_'.$namespace,\@del_lock,$cdom,$cnum);
7942: } else {
7943: $error = "error: could not obtain lockfile\n";
7944: $dellock = 'ok';
7945: if (($prefix eq 'paste') && ($namespace eq 'courseeditor') && ($keyid eq 'num')) {
7946: $dellock = 'nolock';
7947: }
7948: }
7949: return ($newid,$dellock,$error);
7950: }
7951:
7952: sub sixnum_code {
7953: my $code;
7954: for (0..6) {
7955: $code .= int( rand(9) );
7956: }
7957: return $code;
7958: }
7959:
7960: # -------------------------------------------------- portfolio access checking
7961:
7962: sub portfolio_access {
7963: my ($requrl,$clientip) = @_;
7964: my (undef,$udom,$unum,$file_name,$group) = &parse_portfolio_url($requrl);
7965: my $result = &get_portfolio_access($udom,$unum,$file_name,$group,$clientip);
7966: if ($result) {
7967: my %setters;
7968: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
7969: my ($startblock,$endblock,$triggerblock,$by_ip,$blockdom) =
7970: &Apache::loncommon::blockcheck(\%setters,'port',$clientip,$unum,$udom);
7971: if (($startblock && $endblock) || ($by_ip)) {
7972: return 'B';
7973: }
7974: } else {
7975: my ($startblock,$endblock,$triggerblock,$by_ip,$blockdom) =
7976: &Apache::loncommon::blockcheck(\%setters,'port',$clientip);
7977: if (($startblock && $endblock) || ($by_ip)) {
7978: return 'B';
7979: }
7980: }
7981: }
7982: if ($result eq 'ok') {
7983: return 'F';
7984: } elsif ($result =~ /^[^:]+:guest_/) {
7985: return 'A';
7986: }
7987: return '';
7988: }
7989:
7990: sub get_portfolio_access {
7991: my ($udom,$unum,$file_name,$group,$clientip,$access_hash,$portaccessref) = @_;
7992:
7993: if (!ref($access_hash)) {
7994: my $current_perms = &get_portfile_permissions($udom,$unum);
7995: my %access_controls = &get_access_controls($current_perms,$group,
7996: $file_name);
7997: $access_hash = $access_controls{$file_name};
7998: }
7999:
8000: my $portaccess;
8001: if (ref($portaccess) eq 'SCALAR') {
8002: $portaccess = $$portaccessref;
8003: } else {
8004: $portaccess = &usertools_access($unum,$udom,'portaccess',undef,'tools');
8005: }
8006:
8007: my ($public,$guest,@domains,@users,@courses,@groups,@ips);
8008: my $now = time;
8009: if (ref($access_hash) eq 'HASH') {
8010: foreach my $key (keys(%{$access_hash})) {
8011: my ($num,$scope,$end,$start) = ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
8012: next if (($scope ne 'ip') && ($portaccess == 0));
8013: if ($start > $now) {
8014: next;
8015: }
8016: if ($end && $end<$now) {
8017: next;
8018: }
8019: if ($scope eq 'public') {
8020: $public = $key;
8021: last;
8022: } elsif ($scope eq 'guest') {
8023: $guest = $key;
8024: } elsif ($scope eq 'domains') {
8025: push(@domains,$key);
8026: } elsif ($scope eq 'users') {
8027: push(@users,$key);
8028: } elsif ($scope eq 'course') {
8029: push(@courses,$key);
8030: } elsif ($scope eq 'group') {
8031: push(@groups,$key);
8032: } elsif ($scope eq 'ip') {
8033: push(@ips,$key);
8034: }
8035: }
8036: if ($public) {
8037: return 'ok';
8038: } elsif (@ips > 0) {
8039: my $allowed;
8040: foreach my $ipkey (@ips) {
8041: if (ref($access_hash->{$ipkey}{'ip'}) eq 'ARRAY') {
8042: if (&Apache::loncommon::check_ip_acc(join(',',@{$access_hash->{$ipkey}{'ip'}}),$clientip)) {
8043: $allowed = 1;
8044: last;
8045: }
8046: }
8047: }
8048: if ($allowed) {
8049: return 'ok';
8050: }
8051: }
8052: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
8053: if ($guest) {
8054: return $guest;
8055: }
8056: } else {
8057: if (@domains > 0) {
8058: foreach my $domkey (@domains) {
8059: if (ref($access_hash->{$domkey}{'dom'}) eq 'ARRAY') {
8060: if (grep(/^\Q$env{'user.domain'}\E$/,@{$access_hash->{$domkey}{'dom'}})) {
8061: return 'ok';
8062: }
8063: }
8064: }
8065: }
8066: if (@users > 0) {
8067: foreach my $userkey (@users) {
8068: if (ref($access_hash->{$userkey}{'users'}) eq 'ARRAY') {
8069: foreach my $item (@{$access_hash->{$userkey}{'users'}}) {
8070: if (ref($item) eq 'HASH') {
8071: if (($item->{'uname'} eq $env{'user.name'}) &&
8072: ($item->{'udom'} eq $env{'user.domain'})) {
8073: return 'ok';
8074: }
8075: }
8076: }
8077: }
8078: }
8079: }
8080: my %roleshash;
8081: my @courses_and_groups = @courses;
8082: push(@courses_and_groups,@groups);
8083: if (@courses_and_groups > 0) {
8084: my (%allgroups,%allroles);
8085: my ($start,$end,$role,$sec,$group);
8086: foreach my $envkey (%env) {
8087: if ($envkey =~ m-^user\.role\.(gr|cc|co|in|ta|ep|ad|st)\./($match_domain)/($match_courseid)/?([^/]*)$-) {
8088: my $cid = $2.'_'.$3;
8089: if ($1 eq 'gr') {
8090: $group = $4;
8091: $allgroups{$cid}{$group} = $env{$envkey};
8092: } else {
8093: if ($4 eq '') {
8094: $sec = 'none';
8095: } else {
8096: $sec = $4;
8097: }
8098: $allroles{$cid}{$1}{$sec} = $env{$envkey};
8099: }
8100: } elsif ($envkey =~ m-^user\.role\./cr/($match_domain/$match_username/\w*)./($match_domain)/($match_courseid)/?([^/]*)$-) {
8101: my $cid = $2.'_'.$3;
8102: if ($4 eq '') {
8103: $sec = 'none';
8104: } else {
8105: $sec = $4;
8106: }
8107: $allroles{$cid}{$1}{$sec} = $env{$envkey};
8108: }
8109: }
8110: if (keys(%allroles) == 0) {
8111: return;
8112: }
8113: foreach my $key (@courses_and_groups) {
8114: my %content = %{$$access_hash{$key}};
8115: my $cnum = $content{'number'};
8116: my $cdom = $content{'domain'};
8117: my $cid = $cdom.'_'.$cnum;
8118: if (!exists($allroles{$cid})) {
8119: next;
8120: }
8121: foreach my $role_id (keys(%{$content{'roles'}})) {
8122: my @sections = @{$content{'roles'}{$role_id}{'section'}};
8123: my @groups = @{$content{'roles'}{$role_id}{'group'}};
8124: my @status = @{$content{'roles'}{$role_id}{'access'}};
8125: my @roles = @{$content{'roles'}{$role_id}{'role'}};
8126: foreach my $role (keys(%{$allroles{$cid}})) {
8127: if ((grep/^all$/,@roles) || (grep/^\Q$role\E$/,@roles)) {
8128: foreach my $sec (keys(%{$allroles{$cid}{$role}})) {
8129: if (&course_group_datechecker($allroles{$cid}{$role}{$sec},$now,\@status) eq 'ok') {
8130: if (grep/^all$/,@sections) {
8131: return 'ok';
8132: } else {
8133: if (grep/^$sec$/,@sections) {
8134: return 'ok';
8135: }
8136: }
8137: }
8138: }
8139: if (keys(%{$allgroups{$cid}}) == 0) {
8140: if (grep/^none$/,@groups) {
8141: return 'ok';
8142: }
8143: } else {
8144: if (grep/^all$/,@groups) {
8145: return 'ok';
8146: }
8147: foreach my $group (keys(%{$allgroups{$cid}})) {
8148: if (grep/^$group$/,@groups) {
8149: return 'ok';
8150: }
8151: }
8152: }
8153: }
8154: }
8155: }
8156: }
8157: }
8158: if ($guest) {
8159: return $guest;
8160: }
8161: }
8162: }
8163: return;
8164: }
8165:
8166: sub course_group_datechecker {
8167: my ($dates,$now,$status) = @_;
8168: my ($start,$end) = split(/\./,$dates);
8169: if (!$start && !$end) {
8170: return 'ok';
8171: }
8172: if (grep/^active$/,@{$status}) {
8173: if (((!$start) || ($start && $start <= $now)) && ((!$end) || ($end && $end >= $now))) {
8174: return 'ok';
8175: }
8176: }
8177: if (grep/^previous$/,@{$status}) {
8178: if ($end > $now ) {
8179: return 'ok';
8180: }
8181: }
8182: if (grep/^future$/,@{$status}) {
8183: if ($start > $now) {
8184: return 'ok';
8185: }
8186: }
8187: return;
8188: }
8189:
8190: sub parse_portfolio_url {
8191: my ($url) = @_;
8192:
8193: my ($type,$udom,$unum,$group,$file_name);
8194:
8195: if ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_username)/portfolio(/.+)$-) {
8196: $type = 1;
8197: $udom = $1;
8198: $unum = $2;
8199: $file_name = $3;
8200: } elsif ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_courseid)/groups/([^/]+)/portfolio/(.+)$-) {
8201: $type = 2;
8202: $udom = $1;
8203: $unum = $2;
8204: $group = $3;
8205: $file_name = $3.'/'.$4;
8206: }
8207: if (wantarray) {
8208: return ($type,$udom,$unum,$file_name,$group);
8209: }
8210: return $type;
8211: }
8212:
8213: sub is_portfolio_url {
8214: my ($url) = @_;
8215: return scalar(&parse_portfolio_url($url));
8216: }
8217:
8218: sub is_portfolio_file {
8219: my ($file) = @_;
8220: if (($file =~ /^portfolio/) || ($file =~ /^groups\/\w+\/portfolio/)) {
8221: return 1;
8222: }
8223: return;
8224: }
8225:
8226: sub is_coursetool_logo {
8227: my ($uri) = @_;
8228: if ($env{'request.course.id'}) {
8229: my $courseurl = &courseid_to_courseurl($env{'request.course.id'});
8230: if ($uri =~ m{^/*uploaded\Q$courseurl\E/toollogo/\d+/[^/]+$}) {
8231: return 1;
8232: }
8233: }
8234: return;
8235: }
8236:
8237: sub usertools_access {
8238: my ($uname,$udom,$tool,$action,$context,$userenvref,$domdefref,$is_advref)=@_;
8239: my ($access,%tools);
8240: if ($context eq '') {
8241: $context = 'tools';
8242: }
8243: if ($context eq 'requestcourses') {
8244: %tools = (
8245: official => 1,
8246: unofficial => 1,
8247: community => 1,
8248: textbook => 1,
8249: placement => 1,
8250: lti => 1,
8251: );
8252: } elsif ($context eq 'requestauthor') {
8253: %tools = (
8254: requestauthor => 1,
8255: );
8256: } elsif ($context eq 'authordefaults') {
8257: %tools = (
8258: webdav => 1,
8259: );
8260: } else {
8261: %tools = (
8262: aboutme => 1,
8263: blog => 1,
8264: portfolio => 1,
8265: portaccess => 1,
8266: timezone => 1,
8267: );
8268: }
8269: return if (!defined($tools{$tool}));
8270:
8271: if (($udom eq '') || ($uname eq '')) {
8272: $udom = $env{'user.domain'};
8273: $uname = $env{'user.name'};
8274: }
8275:
8276: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
8277: if ($action ne 'reload') {
8278: if ($context eq 'requestcourses') {
8279: return $env{'environment.canrequest.'.$tool};
8280: } elsif ($context eq 'requestauthor') {
8281: return $env{'environment.canrequest.author'};
8282: } elsif ($context eq 'authordefaults') {
8283: if ($tool eq 'webdav') {
8284: return $env{'environment.availabletools.'.$tool};
8285: }
8286: } else {
8287: return $env{'environment.availabletools.'.$tool};
8288: }
8289: }
8290: }
8291:
8292: my ($toolstatus,$inststatus,$envkey);
8293: if ($context eq 'requestauthor') {
8294: $envkey = $context;
8295: } elsif ($context eq 'authordefaults') {
8296: if ($tool eq 'webdav') {
8297: $envkey = 'tools.'.$tool;
8298: }
8299: } else {
8300: $envkey = $context.'.'.$tool;
8301: }
8302:
8303: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
8304: ($action ne 'reload')) {
8305: $toolstatus = $env{'environment.'.$envkey};
8306: $inststatus = $env{'environment.inststatus'};
8307: } else {
8308: if (ref($userenvref) eq 'HASH') {
8309: $toolstatus = $userenvref->{$envkey};
8310: $inststatus = $userenvref->{'inststatus'};
8311: } else {
8312: my %userenv = &userenvironment($udom,$uname,$envkey,'inststatus');
8313: $toolstatus = $userenv{$envkey};
8314: $inststatus = $userenv{'inststatus'};
8315: }
8316: }
8317:
8318: if ($toolstatus ne '') {
8319: if ($toolstatus) {
8320: $access = 1;
8321: } else {
8322: $access = 0;
8323: }
8324: return $access;
8325: }
8326:
8327: my ($is_adv,%domdef);
8328: if (ref($is_advref) eq 'HASH') {
8329: $is_adv = $is_advref->{'is_adv'};
8330: } else {
8331: $is_adv = &is_advanced_user($udom,$uname);
8332: }
8333: if (ref($domdefref) eq 'HASH') {
8334: %domdef = %{$domdefref};
8335: } else {
8336: %domdef = &get_domain_defaults($udom);
8337: }
8338: if (ref($domdef{$tool}) eq 'HASH') {
8339: if ($is_adv) {
8340: if ($domdef{$tool}{'_LC_adv'} ne '') {
8341: if ($domdef{$tool}{'_LC_adv'}) {
8342: $access = 1;
8343: } else {
8344: $access = 0;
8345: }
8346: return $access;
8347: }
8348: }
8349: if ($inststatus ne '') {
8350: my ($hasaccess,$hasnoaccess);
8351: foreach my $affiliation (split(/:/,$inststatus)) {
8352: if ($domdef{$tool}{$affiliation} ne '') {
8353: if ($domdef{$tool}{$affiliation}) {
8354: $hasaccess = 1;
8355: } else {
8356: $hasnoaccess = 1;
8357: }
8358: }
8359: }
8360: if ($hasaccess || $hasnoaccess) {
8361: if ($hasaccess) {
8362: $access = 1;
8363: } elsif ($hasnoaccess) {
8364: $access = 0;
8365: }
8366: return $access;
8367: }
8368: } else {
8369: if ($domdef{$tool}{'default'} ne '') {
8370: if ($domdef{$tool}{'default'}) {
8371: $access = 1;
8372: } elsif ($domdef{$tool}{'default'} == 0) {
8373: $access = 0;
8374: }
8375: return $access;
8376: }
8377: }
8378: } else {
8379: if (($context eq 'tools') && ($tool ne 'webdav')) {
8380: $access = 1;
8381: } else {
8382: $access = 0;
8383: }
8384: return $access;
8385: }
8386: }
8387:
8388: sub is_course_owner {
8389: my ($cdom,$cnum,$udom,$uname) = @_;
8390: if (($udom eq '') || ($uname eq '')) {
8391: $udom = $env{'user.domain'};
8392: $uname = $env{'user.name'};
8393: }
8394: unless (($udom eq '') || ($uname eq '')) {
8395: if (exists($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'})) {
8396: if ($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'} eq $uname.':'.$udom) {
8397: return 1;
8398: } else {
8399: my %courseinfo = &coursedescription($cdom.'/'.$cnum);
8400: if ($courseinfo{'internal.courseowner'} eq $uname.':'.$udom) {
8401: return 1;
8402: }
8403: }
8404: }
8405: }
8406: return;
8407: }
8408:
8409: sub is_advanced_user {
8410: my ($udom,$uname,$nocache) = @_;
8411: my ($is_adv,$is_author,$use_cache,$hashid);
8412: if ($udom ne '' && $uname ne '') {
8413: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
8414: if (wantarray) {
8415: return ($env{'user.adv'},$env{'user.author'});
8416: } else {
8417: return $env{'user.adv'};
8418: }
8419: } elsif (!$nocache) {
8420: $use_cache = 1;
8421: $hashid = "$udom:$uname";
8422: my ($info,$cached)=&is_cached_new('isadvau',$hashid);
8423: if ($cached) {
8424: ($is_adv,$is_author) = split(/:/,$info);
8425: if (wantarray) {
8426: return ($is_adv,$is_author);
8427: }
8428: return $is_adv;
8429: }
8430: }
8431: }
8432: my %roleshash = &get_my_roles($uname,$udom,'userroles',undef,undef,undef,1);
8433: my %allroles;
8434: foreach my $role (keys(%roleshash)) {
8435: my ($trest,$tdomain,$trole,$sec) = split(/:/,$role);
8436: my $area = '/'.$tdomain.'/'.$trest;
8437: if ($sec ne '') {
8438: $area .= '/'.$sec;
8439: }
8440: if (($area ne '') && ($trole ne '')) {
8441: my $spec=$trole.'.'.$area;
8442: if ($trole =~ /^cr\//) {
8443: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
8444: } elsif ($trole ne 'gr') {
8445: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
8446: }
8447: if ($trole eq 'au') {
8448: $is_author = 1;
8449: }
8450: }
8451: }
8452: foreach my $role (keys(%allroles)) {
8453: last if ($is_adv);
8454: foreach my $item (split(/:/,$allroles{$role})) {
8455: if ($item ne '') {
8456: my ($privilege,$restrictions)=split(/&/,$item);
8457: if ($privilege eq 'adv') {
8458: $is_adv = 1;
8459: last;
8460: }
8461: }
8462: }
8463: }
8464: if ($use_cache) {
8465: my $cachetime = 600;
8466: &do_cache_new('isadvau',$hashid,$is_adv.':'.$is_author,$cachetime);
8467: }
8468: if (wantarray) {
8469: return ($is_adv,$is_author);
8470: }
8471: return $is_adv;
8472: }
8473:
8474: sub check_can_request {
8475: my ($dom,$can_request,$request_domains,$uname,$udom) = @_;
8476: my $canreq = 0;
8477: if (($env{'user.name'} ne '') && ($env{'user.domain'} ne '')) {
8478: $uname = $env{'user.name'};
8479: $udom = $env{'user.domain'};
8480: }
8481: my ($types,$typename) = &Apache::loncommon::course_types();
8482: my @options = ('approval','validate','autolimit');
8483: my $optregex = join('|',@options);
8484: if ((ref($can_request) eq 'HASH') && (ref($types) eq 'ARRAY')) {
8485: my %willtrust;
8486: foreach my $type (@{$types}) {
8487: if (&usertools_access($uname,$udom,$type,undef,
8488: 'requestcourses')) {
8489: $canreq ++;
8490: if (ref($request_domains) eq 'HASH') {
8491: push(@{$request_domains->{$type}},$udom);
8492: }
8493: if ($dom eq $udom) {
8494: $can_request->{$type} = 1;
8495: }
8496: }
8497: if (($env{'user.name'} ne '') && ($env{'user.domain'} ne '') &&
8498: ($env{'environment.reqcrsotherdom.'.$type} ne '')) {
8499: my @curr = split(',',$env{'environment.reqcrsotherdom.'.$type});
8500: if (@curr > 0) {
8501: foreach my $item (@curr) {
8502: if (ref($request_domains) eq 'HASH') {
8503: my ($otherdom) = ($item =~ /^($match_domain):($optregex)(=?\d*)$/);
8504: if ($otherdom ne '') {
8505: unless (exists($willtrust{$otherdom})) {
8506: $willtrust{$otherdom} = &will_trust('reqcrs',$env{'user.domain'},$otherdom);
8507: }
8508: if ($willtrust{$otherdom}) {
8509: if (ref($request_domains->{$type}) eq 'ARRAY') {
8510: unless (grep(/^\Q$otherdom\E$/,@{$request_domains->{$type}})) {
8511: push(@{$request_domains->{$type}},$otherdom);
8512: }
8513: } else {
8514: push(@{$request_domains->{$type}},$otherdom);
8515: }
8516: }
8517: }
8518: }
8519: }
8520: unless ($dom eq $env{'user.domain'}) {
8521: $canreq ++;
8522: if (grep(/^\Q$dom\E:($optregex)(=?\d*)$/,@curr)) {
8523: $can_request->{$type} = 1;
8524: }
8525: }
8526: }
8527: }
8528: }
8529: }
8530: return $canreq;
8531: }
8532:
8533: # ---------------------------------------------- Custom access rule evaluation
8534:
8535: sub customaccess {
8536: my ($priv,$uri)=@_;
8537: my ($urole,$urealm)=split(/\./,$env{'request.role'},2);
8538: my (undef,$udom,$ucrs,$usec)=split(/\//,$urealm);
8539: $udom = &LONCAPA::clean_domain($udom);
8540: $ucrs = &LONCAPA::clean_username($ucrs);
8541: my $access=0;
8542: foreach my $right (split(/\s*\,\s*/,&metadata($uri,'rule_rights'))) {
8543: my ($effect,$realm,$role,$type)=split(/\:/,$right);
8544: if ($type eq 'user') {
8545: foreach my $scope (split(/\s*\,\s*/,$realm)) {
8546: my ($tdom,$tuname)=split(m{/},$scope);
8547: if ($tdom) {
8548: if ($tdom ne $env{'user.domain'}) { next; }
8549: }
8550: if ($tuname) {
8551: if ($tuname ne $env{'user.name'}) { next; }
8552: }
8553: $access=($effect eq 'allow');
8554: last;
8555: }
8556: } else {
8557: if ($role) {
8558: if ($role ne $urole) { next; }
8559: }
8560: foreach my $scope (split(/\s*\,\s*/,$realm)) {
8561: my ($tdom,$tcrs,$tsec)=split(/\_/,$scope);
8562: if ($tdom) {
8563: if ($tdom ne $udom) { next; }
8564: }
8565: if ($tcrs) {
8566: if ($tcrs ne $ucrs) { next; }
8567: }
8568: if ($tsec) {
8569: if ($tsec ne $usec) { next; }
8570: }
8571: $access=($effect eq 'allow');
8572: last;
8573: }
8574: if ($realm eq '' && $role eq '') {
8575: $access=($effect eq 'allow');
8576: }
8577: }
8578: }
8579: return $access;
8580: }
8581:
8582: # ------------------------------------------------- Check for a user privilege
8583:
8584: sub allowed {
8585: my ($priv,$uri,$symb,$role,$clientip,$noblockcheck,$ignorecache,$nodeeplinkcheck,$nodeeplinkout)=@_;
8586: my $ver_orguri=$uri;
8587: $uri=&deversion($uri);
8588: my $orguri=$uri;
8589: $uri=&declutter($uri);
8590:
8591: if ($priv eq 'evb') {
8592: # Evade communication block restrictions for specified role in a course or domain
8593: if ($env{'user.priv.'.$role} =~/evb\&([^\:]*)/) {
8594: return $1;
8595: } else {
8596: return;
8597: }
8598: }
8599:
8600: if (defined($env{'allowed.'.$priv})) { return $env{'allowed.'.$priv}; }
8601: # Free bre access to adm and meta resources
8602: if (((($uri=~/^adm\//) && ($uri !~ m{/(?:smppg|bulletinboard|viewclasslist|aboutme|ext\.tool)$}))
8603: || (($uri=~/\.meta$/) && ($uri!~m|^uploaded/|) ))
8604: && ($priv eq 'bre')) {
8605: return 'F';
8606: }
8607:
8608: # Free bre access to user's own portfolio contents
8609: my ($space,$domain,$name,@dir)=split('/',$uri);
8610: if (($space=~/^(uploaded|editupload)$/) && ($env{'user.name'} eq $name) &&
8611: ($env{'user.domain'} eq $domain) && ('portfolio' eq $dir[0])) {
8612: my %setters;
8613: my ($startblock,$endblock,$triggerblock,$by_ip,$blockdom) =
8614: &Apache::loncommon::blockcheck(\%setters,'port',$clientip);
8615: if (($startblock && $endblock) || ($by_ip)) {
8616: return 'B';
8617: } else {
8618: return 'F';
8619: }
8620: }
8621:
8622: # bre access to group portfolio for rgf priv in group, or mdg or vcg in course.
8623: if (($space=~/^(uploaded|editupload)$/) && ($dir[0] eq 'groups')
8624: && ($dir[2] eq 'portfolio') && ($priv eq 'bre')) {
8625: if (exists($env{'request.course.id'})) {
8626: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
8627: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
8628: if (($domain eq $cdom) && ($name eq $cnum)) {
8629: my $courseprivid=$env{'request.course.id'};
8630: $courseprivid=~s/\_/\//;
8631: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid
8632: .'/'.$dir[1]} =~/rgf\&([^\:]*)/) {
8633: return $1;
8634: } else {
8635: if ($env{'request.course.sec'}) {
8636: $courseprivid.='/'.$env{'request.course.sec'};
8637: }
8638: if ($env{'user.priv.'.$env{'request.role'}.'./'.
8639: $courseprivid} =~/(mdg|vcg)\&([^\:]*)/) {
8640: return $2;
8641: }
8642: }
8643: }
8644: }
8645: }
8646:
8647: # Free bre to public access
8648:
8649: if ($priv eq 'bre') {
8650: my $copyright;
8651: unless ($uri =~ /ext\.tool/) {
8652: $copyright=&metadata($uri,'copyright');
8653: }
8654: if (($copyright eq 'public') && (!$env{'request.course.id'})) {
8655: return 'F';
8656: }
8657: if ($copyright eq 'priv') {
8658: $uri=~/([^\/]+)\/([^\/]+)\//;
8659: unless (($env{'user.name'} eq $2) && ($env{'user.domain'} eq $1)) {
8660: return '';
8661: }
8662: }
8663: if ($copyright eq 'domain') {
8664: $uri=~/([^\/]+)\/([^\/]+)\//;
8665: unless (($env{'user.domain'} eq $1) ||
8666: ($env{'course.'.$env{'request.course.id'}.'.domain'} eq $1)) {
8667: return '';
8668: }
8669: }
8670: if ($env{'request.role'}=~ /li\.\//) {
8671: # Library role, so allow browsing of resources in this domain.
8672: return 'F';
8673: }
8674: if ($copyright eq 'custom') {
8675: unless (&customaccess($priv,$uri)) { return ''; }
8676: }
8677: }
8678: # Domain coordinator is trying to create a course
8679: if (($priv eq 'ccc') && ($env{'request.role'} =~ /^dc\./)) {
8680: # uri is the requested domain in this case.
8681: # comparison to 'request.role.domain' shows if the user has selected
8682: # a role of dc for the domain in question.
8683: return 'F' if ($uri eq $env{'request.role.domain'});
8684: }
8685:
8686: my $thisallowed='';
8687: my $statecond=0;
8688: my $courseprivid='';
8689:
8690: my $ownaccess;
8691: # Community Coordinator or Assistant Co-author browsing resource space.
8692: if (($priv eq 'bro') && ($env{'user.author'})) {
8693: if ($uri eq '') {
8694: $ownaccess = 1;
8695: } else {
8696: if (($env{'user.domain'} ne '') && ($env{'user.name'} ne '')) {
8697: my $udom = $env{'user.domain'};
8698: my $uname = $env{'user.name'};
8699: if ($uri =~ m{^\Q$udom\E/?$}) {
8700: $ownaccess = 1;
8701: } elsif ($uri =~ m{^\Q$udom\E/\Q$uname\E/?}) {
8702: unless ($uri =~ m{\.\./}) {
8703: $ownaccess = 1;
8704: }
8705: } elsif (($udom ne 'public') && ($uname ne 'public')) {
8706: my $now = time;
8707: if ($uri =~ m{^([^/]+)/?$}) {
8708: my $adom = $1;
8709: foreach my $key (keys(%env)) {
8710: if ($key =~ m{^user\.role\.(ca|aa)/\Q$adom\E}) {
8711: my ($start,$end) = split(/\./,$env{$key});
8712: if (($now >= $start) && (!$end || $end > $now)) {
8713: $ownaccess = 1;
8714: last;
8715: }
8716: }
8717: }
8718: } elsif ($uri =~ m{^([^/]+)/([^/]+)/?}) {
8719: my $adom = $1;
8720: my $aname = $2;
8721: foreach my $role ('ca','aa') {
8722: if ($env{"user.role.$role./$adom/$aname"}) {
8723: my ($start,$end) =
8724: split(/\./,$env{"user.role.$role./$adom/$aname"});
8725: if (($now >= $start) && (!$end || $end > $now)) {
8726: $ownaccess = 1;
8727: last;
8728: }
8729: }
8730: }
8731: }
8732: }
8733: }
8734: }
8735: }
8736:
8737: # Course
8738:
8739: if ($env{'user.priv.'.$env{'request.role'}.'./'}=~/\Q$priv\E\&([^\:]*)/) {
8740: unless (($priv eq 'bro') && (!$ownaccess)) {
8741: $thisallowed.=$1;
8742: }
8743: }
8744:
8745: # Domain
8746:
8747: if ($env{'user.priv.'.$env{'request.role'}.'./'.(split(/\//,$uri))[0].'/'}
8748: =~/\Q$priv\E\&([^\:]*)/) {
8749: unless (($priv eq 'bro') && (!$ownaccess)) {
8750: $thisallowed.=$1;
8751: }
8752: }
8753:
8754: # User who is not author or co-author might still be able to edit
8755: # resource of an author in the domain (e.g., if Domain Coordinator).
8756: if (($priv eq 'eco') && ($thisallowed eq '') && ($env{'request.course.id'}) &&
8757: (&allowed('mdc',$env{'request.course.id'}))) {
8758: if ($env{"user.priv.cm./$uri/"}=~/\Q$priv\E\&([^\:]*)/) {
8759: $thisallowed.=$1;
8760: }
8761: }
8762:
8763: # Course: uri itself is a course
8764: my $courseuri=$uri;
8765: $courseuri=~s/\_(\d)/\/$1/;
8766: $courseuri=~s/^([^\/])/\/$1/;
8767:
8768: if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseuri}
8769: =~/\Q$priv\E\&([^\:]*)/) {
8770: if ($priv eq 'mip') {
8771: my $rem = $1;
8772: if (($uri ne '') && ($env{'request.course.id'} eq $uri) &&
8773: ($env{'course.'.$env{'request.course.id'}.'.internal.courseowner'} eq $env{'user.name'}.':'.$env{'user.domain'})) {
8774: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
8775: if ($cdom ne '') {
8776: my %passwdconf = &get_passwdconf($cdom);
8777: if (ref($passwdconf{'crsownerchg'}) eq 'HASH') {
8778: if (ref($passwdconf{'crsownerchg'}{'by'}) eq 'ARRAY') {
8779: if (@{$passwdconf{'crsownerchg'}{'by'}}) {
8780: my @inststatuses = split(':',$env{'environment.inststatus'});
8781: unless (@inststatuses) {
8782: @inststatuses = ('default');
8783: }
8784: foreach my $status (@inststatuses) {
8785: if (grep(/^\Q$status\E$/,@{$passwdconf{'crsownerchg'}{'by'}})) {
8786: $thisallowed.=$rem;
8787: }
8788: }
8789: }
8790: }
8791: }
8792: }
8793: }
8794: } else {
8795: unless (($priv eq 'bro') && (!$ownaccess)) {
8796: $thisallowed.=$1;
8797: }
8798: }
8799: }
8800:
8801: # URI is an uploaded document for this course, default permissions don't matter
8802: # not allowing 'edit' access (editupload) to uploaded course docs
8803: if (($priv eq 'bre') && ($uri=~m|^uploaded/|)) {
8804: $thisallowed='';
8805: my ($match)=&is_on_map($uri);
8806: if ($match) {
8807: if ($env{'user.priv.'.$env{'request.role'}.'./'}
8808: =~/\Q$priv\E\&([^\:]*)/) {
8809: my $value = $1;
8810: my $deeplinkblock;
8811: unless ($nodeeplinkcheck) {
8812: $deeplinkblock = &deeplink_check($priv,$symb,$uri);
8813: }
8814: if ($deeplinkblock) {
8815: $thisallowed='D';
8816: } elsif ($noblockcheck) {
8817: $thisallowed.=$value;
8818: } else {
8819: my @blockers = &has_comm_blocking($priv,$symb,$uri,$ignorecache);
8820: if (@blockers > 0) {
8821: $thisallowed = 'B';
8822: } else {
8823: $thisallowed.=$value;
8824: }
8825: }
8826: }
8827: } else {
8828: my $refuri = $env{'httpref.'.$orguri} || $env{'httpref.'.$ver_orguri};
8829: if ($refuri) {
8830: if ($refuri =~ m|^/adm/|) {
8831: $thisallowed='F';
8832: } else {
8833: $refuri=&declutter($refuri);
8834: my ($match) = &is_on_map($refuri);
8835: if ($match) {
8836: my $deeplinkblock;
8837: unless ($nodeeplinkcheck) {
8838: $deeplinkblock = &deeplink_check($priv,$symb,$refuri);
8839: }
8840: if ($deeplinkblock) {
8841: $thisallowed='D';
8842: } elsif ($noblockcheck) {
8843: $thisallowed='F';
8844: } else {
8845: my @blockers = &has_comm_blocking($priv,'',$refuri,'',1);
8846: if (@blockers > 0) {
8847: $thisallowed = 'B';
8848: } else {
8849: $thisallowed='F';
8850: }
8851: }
8852: }
8853: }
8854: }
8855: }
8856: }
8857:
8858: if ($priv eq 'bre'
8859: && $thisallowed ne 'F'
8860: && $thisallowed ne '2'
8861: && &is_portfolio_url($uri)) {
8862: $thisallowed = &portfolio_access($uri,$clientip);
8863: }
8864:
8865: # Full access at system, domain or course-wide level? Exit.
8866: if ($thisallowed=~/F/) {
8867: return 'F';
8868: }
8869:
8870: # If this is generating or modifying users, exit with special codes
8871:
8872: if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:cca:caa:vca:vaa:'=~/\:\Q$priv\E\:/) {
8873: if (($priv eq 'cca') || ($priv eq 'caa')) {
8874: my ($audom,$auname)=split('/',$uri);
8875: # no author name given, so this just checks on the general right to make a co-author in this domain
8876: unless ($auname) { return $thisallowed; }
8877: # an author name is given, so we are about to actually make a co-author for a certain account
8878: if (($auname ne $env{'user.name'} && $env{'request.role'} !~ /^dc\./) ||
8879: (($audom ne $env{'user.domain'} && $env{'request.role'} !~ /^dc\./) &&
8880: ($audom ne $env{'request.role.domain'}))) { return ''; }
8881: } elsif (($priv eq 'vca') || ($priv eq 'vaa')) {
8882: my ($audom,$auname)=split('/',$uri);
8883: unless ($auname) { return $thisallowed; }
8884: unless (($env{'request.role'} eq "dc./$audom") ||
8885: ($env{'request.role'} eq "ca./$uri")) {
8886: return '';
8887: }
8888: }
8889: return $thisallowed;
8890: }
8891: #
8892: # Gathered so far: system, domain and course wide privileges
8893: #
8894: # Course: See if uri or referer is an individual resource that is part of
8895: # the course
8896:
8897: if ($env{'request.course.id'}) {
8898:
8899: if ($priv eq 'bre') {
8900: if (&is_coursetool_logo($uri)) {
8901: return 'F';
8902: }
8903: }
8904:
8905: # If this is modifying password (internal auth) domains must match for user and user's role.
8906:
8907: if ($priv eq 'mip') {
8908: if ($env{'user.domain'} eq $env{'request.role.domain'}) {
8909: return $thisallowed;
8910: } else {
8911: return '';
8912: }
8913: }
8914:
8915: $courseprivid=$env{'request.course.id'};
8916: if ($env{'request.course.sec'}) {
8917: $courseprivid.='/'.$env{'request.course.sec'};
8918: }
8919: $courseprivid=~s/\_/\//;
8920: my $checkreferer=1;
8921: my ($match,$cond)=&is_on_map($uri);
8922: if ($match) {
8923: $statecond=$cond;
8924: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
8925: =~/\Q$priv\E\&([^\:]*)/) {
8926: my $value = $1;
8927: if ($priv eq 'bre') {
8928: my $deeplinkblock;
8929: unless ($nodeeplinkcheck) {
8930: $deeplinkblock = &deeplink_check($priv,$symb,$uri);
8931: }
8932: if ($deeplinkblock) {
8933: $thisallowed = 'D';
8934: } elsif ($noblockcheck) {
8935: $thisallowed.=$value;
8936: } else {
8937: my @blockers = &has_comm_blocking($priv,$symb,$uri,$ignorecache);
8938: if (@blockers > 0) {
8939: $thisallowed = 'B';
8940: } else {
8941: $thisallowed.=$value;
8942: }
8943: }
8944: } else {
8945: $thisallowed.=$value;
8946: }
8947: $checkreferer=0;
8948: }
8949: }
8950:
8951: if ($checkreferer) {
8952: my $refuri=$env{'httpref.'.$orguri};
8953: unless ($refuri) {
8954: foreach my $key (keys(%env)) {
8955: if ($key=~/^httpref\..*\*/) {
8956: my $pattern=$key;
8957: $pattern=~s/^httpref\.\/res\///;
8958: $pattern=~s/\*/\[\^\/\]\+/g;
8959: $pattern=~s/\//\\\//g;
8960: if ($orguri=~/$pattern/) {
8961: $refuri=$env{$key};
8962: }
8963: }
8964: }
8965: }
8966:
8967: if ($refuri) {
8968: $refuri=&declutter($refuri);
8969: my ($match,$cond)=&is_on_map($refuri);
8970: if ($match) {
8971: my $refstatecond=$cond;
8972: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
8973: =~/\Q$priv\E\&([^\:]*)/) {
8974: my $value = $1;
8975: if ($priv eq 'bre') {
8976: my $deeplinkblock;
8977: unless ($nodeeplinkcheck) {
8978: $deeplinkblock = &deeplink_check($priv,$symb,$refuri);
8979: }
8980: if ($deeplinkblock) {
8981: $thisallowed = 'D';
8982: } elsif ($noblockcheck) {
8983: $thisallowed.=$value;
8984: } else {
8985: my @blockers = &has_comm_blocking($priv,'',$refuri,'',1);
8986: if (@blockers > 0) {
8987: $thisallowed = 'B';
8988: } else {
8989: $thisallowed.=$value;
8990: }
8991: }
8992: } else {
8993: $thisallowed.=$value;
8994: }
8995: $uri=$refuri;
8996: $statecond=$refstatecond;
8997: }
8998: }
8999: }
9000: }
9001: }
9002:
9003: #
9004: # Gathered now: all privileges that could apply, and condition number
9005: #
9006: #
9007: # Full or no access?
9008: #
9009:
9010: if ($thisallowed=~/F/) {
9011: return 'F';
9012: }
9013:
9014: unless ($thisallowed) {
9015: return '';
9016: }
9017:
9018: # Restrictions exist, deal with them
9019: #
9020: # C:according to course preferences
9021: # R:according to resource settings
9022: # L:unless locked
9023: # X:according to user session state
9024: #
9025:
9026: # Possibly locked functionality, check all courses
9027: # In roles.tab, L (unless locked) available for bre, pch, plc, pac and sma.
9028: # Locks might take effect only after 10 minutes cache expiration for other
9029: # courses, and 2 minutes for current course, in which user has st or ta role
9030: # which is neither expired nor a future role (unless current course).
9031:
9032: my ($needlockcheck,$now,$crsonly);
9033: if ($thisallowed=~/L/) {
9034: $now = time;
9035: if ($priv eq 'bre') {
9036: if ($uri ne '') {
9037: if ($orguri =~ m{^/+res/}) {
9038: if ($uri =~ m{^lib/templates/}) {
9039: if ($env{'request.course.id'}) {
9040: $crsonly = 1;
9041: $needlockcheck = 1;
9042: }
9043: } else {
9044: $needlockcheck = 1;
9045: }
9046: } elsif ($env{'request.course.id'}) {
9047: my ($crsdom,$crsnum) = split('_',$env{'request.course.id'});
9048: if (($uri =~ m{^(adm|uploaded|public)/$crsdom/$crsnum/}) ||
9049: ($uri =~ m{^adm/$match_domain/$match_username/\d+/(smppg|bulletinboard)$})) {
9050: $crsonly = 1;
9051: }
9052: $needlockcheck = 1;
9053: }
9054: }
9055: } elsif (($priv eq 'pch') || ($priv eq 'plc') || ($priv eq 'pac') || ($priv eq 'sma')) {
9056: $needlockcheck = 1;
9057: }
9058: }
9059: if ($needlockcheck) {
9060: foreach my $envkey (keys(%env)) {
9061: if ($envkey=~/^user\.role\.(st|ta)\.([^\.]*)/) {
9062: my $courseid=$2;
9063: my $roleid=$1.'.'.$2;
9064: $courseid=~s/^\///;
9065: unless ($env{'request.role'} eq $roleid) {
9066: my ($start,$end) = split(/\./,$env{$envkey});
9067: next unless (($now >= $start) && (!$end || $end > $now));
9068: }
9069: my $expiretime=600;
9070: if ($env{'request.role'} eq $roleid) {
9071: $expiretime=120;
9072: }
9073: my ($cdom,$cnum,$csec)=split(/\//,$courseid);
9074: my $prefix='course.'.$cdom.'_'.$cnum.'.';
9075: if ((time-$env{$prefix.'last_cache'})>$expiretime) {
9076: &coursedescription($courseid,{'freshen_cache' => 1});
9077: }
9078: if (($env{$prefix.'res.'.$uri.'.lock.sections'}=~/\,\Q$csec\E\,/)
9079: || ($env{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) {
9080: if ($env{$prefix.'res.'.$uri.'.lock.expire'}>time) {
9081: &log($env{'user.domain'},$env{'user.name'},
9082: $env{'user.home'},
9083: 'Locked by res: '.$priv.' for '.$uri.' due to '.
9084: $cdom.'/'.$cnum.'/'.$csec.' expire '.
9085: $env{$prefix.'priv.'.$priv.'.lock.expire'});
9086: return '';
9087: }
9088: }
9089: if (($env{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,\Q$csec\E\,/)
9090: || ($env{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) {
9091: if ($env{$prefix.'priv.'.$priv.'.lock.expire'}>time) {
9092: &log($env{'user.domain'},$env{'user.name'},
9093: $env{'user.home'},
9094: 'Locked by priv: '.$priv.' for '.$uri.' due to '.
9095: $cdom.'/'.$cnum.'/'.$csec.' expire '.
9096: $env{$prefix.'priv.'.$priv.'.lock.expire'});
9097: return '';
9098: }
9099: }
9100: }
9101: }
9102: }
9103:
9104: #
9105: # Rest of the restrictions depend on selected course
9106: #
9107:
9108: unless ($env{'request.course.id'}) {
9109: if ($thisallowed eq 'A') {
9110: return 'A';
9111: } elsif ($thisallowed eq 'B') {
9112: return 'B';
9113: } else {
9114: return '1';
9115: }
9116: }
9117:
9118: #
9119: # Now user is definitely in a course
9120: #
9121:
9122:
9123: # Course preferences
9124:
9125: if ($thisallowed=~/C/) {
9126: my $rolecode=(split(/\./,$env{'request.role'}))[0];
9127: my $unamedom=$env{'user.name'}.':'.$env{'user.domain'};
9128: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.roles.denied'}
9129: =~/\Q$rolecode\E/) {
9130: if (($priv ne 'pch') && ($priv ne 'plc') && ($priv ne 'pac')) {
9131: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
9132: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '.
9133: $env{'request.course.id'});
9134: }
9135: return '';
9136: }
9137:
9138: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.users.denied'}
9139: =~/\Q$unamedom\E/) {
9140: if (($priv ne 'pch') && ($priv ne 'plc') && ($priv ne 'pac')) {
9141: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.
9142: 'Denied by user: '.$priv.' for '.$uri.' as '.$unamedom.' in '.
9143: $env{'request.course.id'});
9144: }
9145: return '';
9146: }
9147: }
9148:
9149: # Resource preferences
9150:
9151: if ($thisallowed=~/R/) {
9152: my $rolecode=(split(/\./,$env{'request.role'}))[0];
9153: if (&metadata($uri,'roledeny')=~/\Q$rolecode\E/) {
9154: if (($priv ne 'pch') && ($priv ne 'plc')) {
9155: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
9156: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode);
9157: }
9158: return '';
9159: }
9160: }
9161:
9162: # Restricted for deeplinked session?
9163:
9164: if ($env{'request.deeplink.login'}) {
9165: if ($env{'acc.deeplinkout'} && !$nodeeplinkout) {
9166: if (!$symb) { $symb=&symbread($uri,1); }
9167: if (($symb) && ($env{'acc.deeplinkout'}=~/\&\Q$symb\E\&/)) {
9168: return '';
9169: }
9170: }
9171: }
9172:
9173: # Restricted by state or randomout?
9174:
9175: if ($thisallowed=~/X/) {
9176: if ($env{'acc.randomout'}) {
9177: if (!$symb) { $symb=&symbread($uri,1); }
9178: if (($symb) && ($env{'acc.randomout'}=~/\&\Q$symb\E\&/)) {
9179: return '';
9180: }
9181: }
9182: if (&condval($statecond)) {
9183: return '2';
9184: } else {
9185: return '';
9186: }
9187: }
9188:
9189: if ($thisallowed eq 'A') {
9190: return 'A';
9191: } elsif ($thisallowed eq 'B') {
9192: return 'B';
9193: } elsif ($thisallowed eq 'D') {
9194: return 'D';
9195: }
9196: return 'F';
9197: }
9198:
9199: # ------------------------------------------- Check construction space access
9200:
9201: sub constructaccess {
9202: my ($url,$setpriv)=@_;
9203:
9204: # We do not allow editing of previous versions of files
9205: if ($url=~/\.(\d+)\.(\w+)$/) { return ''; }
9206:
9207: # Get username and domain from URL
9208: my ($ownername,$ownerdomain,$ownerhome);
9209:
9210: ($ownerdomain,$ownername) =
9211: ($url=~ m{^(?:\Q$perlvar{'lonDocRoot'}\E|)(?:/daxepage|/daxeopen)?/priv/($match_domain)/($match_username)(?:/|$)});
9212:
9213: # The URL does not really point to any authorspace, forget it
9214: unless (($ownername) && ($ownerdomain)) { return ''; }
9215:
9216: # Now we need to see if the user has access to the authorspace of
9217: # $ownername at $ownerdomain
9218:
9219: if (($ownername eq $env{'user.name'}) && ($ownerdomain eq $env{'user.domain'})) {
9220: # Real author for this?
9221: $ownerhome = $env{'user.home'};
9222: if (exists($env{'user.priv.au./'.$ownerdomain.'/./'})) {
9223: return ($ownername,$ownerdomain,$ownerhome);
9224: }
9225: } elsif (&is_course($ownerdomain,$ownername)) {
9226: # Course Authoring Space?
9227: if ($env{'request.course.id'}) {
9228: if (($ownername eq $env{'course.'.$env{'request.course.id'}.'.num'}) &&
9229: ($ownerdomain eq $env{'course.'.$env{'request.course.id'}.'.domain'})) {
9230: if (&allowed('mdc',$env{'request.course.id'})) {
9231: return if ($env{'course.'.$env{'request.course.id'}.'.internal.crsauthor'} eq '0');
9232: unless ($env{'course.'.$env{'request.course.id'}.'.internal.crsauthor'}) {
9233: my %domdefs = &get_domain_defaults($ownerdomain);
9234: my $type = lc($env{'course.'.$env{'request.course.id'}.'.type'});
9235: unless (($type eq 'community') || ($type eq 'placement')) {
9236: $type = 'unofficial';
9237: if ($env{'course.'.$env{'request.course.id'}.'internal.coursecode'} ne '') {
9238: $type = 'official';
9239: } elsif ($env{'course.'.$env{'request.course.id'}.'internal.textbook'} ne '') {
9240: $type = 'textbook';
9241: } else {
9242: $type = 'unofficial';
9243: }
9244: }
9245: return if ($domdefs{$type.'crsauthor'} eq '0');
9246: }
9247: $ownerhome = $env{'course.'.$env{'request.course.id'}.'.home'};
9248: return ($ownername,$ownerdomain,$ownerhome);
9249: }
9250: }
9251: }
9252: return '';
9253: } else {
9254: # Co-author for this?
9255: if (exists($env{'user.priv.ca./'.$ownerdomain.'/'.$ownername.'./'}) ||
9256: exists($env{'user.priv.aa./'.$ownerdomain.'/'.$ownername.'./'}) ) {
9257: $ownerhome = &homeserver($ownername,$ownerdomain);
9258: return ($ownername,$ownerdomain,$ownerhome);
9259: }
9260: }
9261:
9262: # We don't have any access right now. If we are not possibly going to do anything about this,
9263: # we might as well leave
9264: unless ($setpriv) { return ''; }
9265:
9266: # Backdoor access?
9267: my $allowed=&allowed('eco',$ownerdomain);
9268: # Nope
9269: unless ($allowed) { return ''; }
9270: # Looks like we may have access, but could be locked by the owner of the construction space
9271: if ($allowed eq 'U') {
9272: my %blocked=&get('environment',['domcoord.author'],
9273: $ownerdomain,$ownername);
9274: # Is blocked by owner
9275: if ($blocked{'domcoord.author'} eq 'blocked') { return ''; }
9276: }
9277: if (($allowed eq 'F') || ($allowed eq 'U')) {
9278: # Grant temporary access
9279: my $then=$env{'user.login.time'};
9280: my $update=$env{'user.update.time'};
9281: if (!$update) { $update = $then; }
9282: my $refresh=$env{'user.refresh.time'};
9283: if (!$refresh) { $refresh = $update; }
9284: my $now = time;
9285: &check_adhoc_privs($ownerdomain,$ownername,$update,$refresh,
9286: $now,'ca','constructaccess');
9287: $ownerhome = &homeserver($ownername,$ownerdomain);
9288: return($ownername,$ownerdomain,$ownerhome);
9289: }
9290: # No business here
9291: return '';
9292: }
9293:
9294: # ----------------------------------------------------------- Content Blocking
9295:
9296: {
9297: # Caches for faster Course Contents display where content blocking
9298: # is in operation (i.e., interval param set) for timed quiz.
9299: #
9300: # User for whom data are being temporarily cached.
9301: my $cacheduser='';
9302: # Course for which data are being temporarily cached.
9303: my $cachedcid='';
9304: # Cached blockers for this user (a hash of blocking items).
9305: my %cachedblockers=();
9306: # When the data were last cached.
9307: my $cachedlast='';
9308:
9309: sub load_all_blockers {
9310: my ($uname,$udom)=@_;
9311: if (($uname ne '') && ($udom ne '')) {
9312: if (($cacheduser eq $uname.':'.$udom) &&
9313: ($cachedcid eq $env{'request.course.id'}) &&
9314: (abs($cachedlast-time)<5)) {
9315: return;
9316: }
9317: }
9318: $cachedlast=time;
9319: $cacheduser=$uname.':'.$udom;
9320: $cachedcid=$env{'request.course.id'};
9321: %cachedblockers = &get_commblock_resources();
9322: return;
9323: }
9324:
9325: sub get_comm_blocks {
9326: my ($cdom,$cnum) = @_;
9327: if ($cdom eq '' || $cnum eq '') {
9328: return unless ($env{'request.course.id'});
9329: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
9330: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
9331: }
9332: my %commblocks;
9333: my $hashid=$cdom.'_'.$cnum;
9334: my ($blocksref,$cached)=&is_cached_new('comm_block',$hashid);
9335: if ((defined($cached)) && (ref($blocksref) eq 'HASH')) {
9336: %commblocks = %{$blocksref};
9337: } else {
9338: %commblocks = &dump('comm_block',$cdom,$cnum);
9339: my $cachetime = 600;
9340: &do_cache_new('comm_block',$hashid,\%commblocks,$cachetime);
9341: }
9342: return %commblocks;
9343: }
9344:
9345: sub get_commblock_resources {
9346: my ($blocks) = @_;
9347: my %blockers = ();
9348: return %blockers unless ($env{'request.course.id'});
9349: my $courseurl = &courseid_to_courseurl($env{'request.course.id'});
9350: if ($env{'request.course.sec'}) {
9351: $courseurl .= '/'.$env{'request.course.sec'};
9352: }
9353: return %blockers if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseurl} =~/evb\&([^\:]*)/);
9354: my %commblocks;
9355: if (ref($blocks) eq 'HASH') {
9356: %commblocks = %{$blocks};
9357: } else {
9358: %commblocks = &get_comm_blocks();
9359: }
9360: return %blockers unless (keys(%commblocks) > 0);
9361: my $navmap = Apache::lonnavmaps::navmap->new();
9362: return %blockers unless (ref($navmap));
9363: my $now = time;
9364: foreach my $block (keys(%commblocks)) {
9365: if ($block =~ /^(\d+)____(\d+)$/) {
9366: my ($start,$end) = ($1,$2);
9367: if ($start <= $now && $end >= $now) {
9368: if (ref($commblocks{$block}{'blocks'}) eq 'HASH') {
9369: if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') {
9370: if (ref($commblocks{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') {
9371: if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'maps'}})) {
9372: $blockers{$block}{maps} = $commblocks{$block}{'blocks'}{'docs'}{'maps'};
9373: }
9374: }
9375: if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') {
9376: if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'resources'}})) {
9377: $blockers{$block}{'resources'} = $commblocks{$block}{'blocks'}{'docs'}{'resources'};
9378: }
9379: }
9380: }
9381: }
9382: }
9383: } elsif ($block =~ /^firstaccess____(.+)$/) {
9384: my $item = $1;
9385: if (ref($commblocks{$block}{'blocks'}) eq 'HASH') {
9386: if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') {
9387: my (@interval,$mapname);
9388: my $type = 'map';
9389: if ($item eq 'course') {
9390: $type = 'course';
9391: @interval=&EXT("resource.0.interval");
9392: } else {
9393: if ($item =~ /___\d+___/) {
9394: $type = 'resource';
9395: @interval=&EXT("resource.0.interval",$item);
9396: } else {
9397: $mapname = &deversion($item);
9398: if (ref($navmap)) {
9399: my $timelimit = $navmap->get_mapparam(undef,$mapname,'0.interval');
9400: @interval = ($timelimit,'map');
9401: }
9402: }
9403: }
9404: if ($interval[0] =~ /^(\d+)/) {
9405: my $timelimit = $1;
9406: my $first_access;
9407: if ($type eq 'resource') {
9408: $first_access=&get_first_access($interval[1],$item);
9409: } elsif ($type eq 'map') {
9410: $first_access=&get_first_access($interval[1],undef,$item);
9411: } else {
9412: $first_access=&get_first_access($interval[1]);
9413: }
9414: if ($first_access) {
9415: my $timesup = $first_access+$timelimit;
9416: if ($timesup > $now) {
9417: my $activeblock;
9418: if ($type eq 'resource') {
9419: if (ref($navmap)) {
9420: my $res = $navmap->getBySymb($item);
9421: if ($res->answerable()) {
9422: $activeblock = 1;
9423: }
9424: }
9425: } elsif ($type eq 'map') {
9426: my $mapsymb = &symbread($mapname,1);
9427: if (($mapsymb) && (ref($navmap))) {
9428: my $mapres = $navmap->getBySymb($mapsymb);
9429: if (ref($mapres)) {
9430: my $first = $mapres->map_start();
9431: my $finish = $mapres->map_finish();
9432: my $it = $navmap->getIterator($first,$finish,undef,0,0);
9433: if (ref($it)) {
9434: my $res;
9435: while ($res = $it->next(undef,1)) {
9436: next unless (ref($res));
9437: my $symb = $res->symb();
9438: next if (($symb eq $mapsymb) || ($symb eq ''));
9439: @interval=&EXT("resource.0.interval",$symb);
9440: if ($interval[1] eq 'map') {
9441: if ($res->answerable()) {
9442: $activeblock = 1;
9443: last;
9444: }
9445: }
9446: }
9447: }
9448: }
9449: }
9450: }
9451: if ($activeblock) {
9452: if (ref($commblocks{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') {
9453: if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'maps'}})) {
9454: $blockers{$block}{'maps'} = $commblocks{$block}{'blocks'}{'docs'}{'maps'};
9455: }
9456: }
9457: if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') {
9458: if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'resources'}})) {
9459: $blockers{$block}{'resources'} = $commblocks{$block}{'blocks'}{'docs'}{'resources'};
9460: }
9461: }
9462: }
9463: }
9464: }
9465: }
9466: }
9467: }
9468: }
9469: }
9470: return %blockers;
9471: }
9472:
9473: sub has_comm_blocking {
9474: my ($priv,$symb,$uri,$ignoresymbdb,$noenccheck,$blocked,$blocks) = @_;
9475: my @blockers;
9476: return unless ($env{'request.course.id'});
9477: return unless ($priv eq 'bre');
9478: return if ($env{'request.state'} eq 'construct');
9479: my $courseurl = &courseid_to_courseurl($env{'request.course.id'});
9480: if ($env{'request.course.sec'}) {
9481: $courseurl .= '/'.$env{'request.course.sec'};
9482: }
9483: return if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseurl} =~/evb\&([^\:]*)/);
9484: my %blockinfo;
9485: if (ref($blocks) eq 'HASH') {
9486: %blockinfo = &get_commblock_resources($blocks);
9487: } else {
9488: &load_all_blockers($env{'user.name'},$env{'user.domain'});
9489: %blockinfo = %cachedblockers;
9490: }
9491: return unless (keys(%blockinfo) > 0);
9492: my (%possibles,@symbs);
9493: if (!$symb) {
9494: $symb = &symbread($uri,1,1,1,\%possibles,$ignoresymbdb,$noenccheck);
9495: }
9496: if ($symb) {
9497: @symbs = ($symb);
9498: } elsif (keys(%possibles)) {
9499: @symbs = keys(%possibles);
9500: }
9501: my $noblock;
9502: foreach my $symb (@symbs) {
9503: last if ($noblock);
9504: my ($map,$resid,$resurl)=&decode_symb($symb);
9505: foreach my $block (keys(%blockinfo)) {
9506: if ($block =~ /^firstaccess____(.+)$/) {
9507: my $item = $1;
9508: unless ($blocked) {
9509: if (($item eq $map) || ($item eq $symb)) {
9510: $noblock = 1;
9511: last;
9512: }
9513: }
9514: }
9515: if (ref($blockinfo{$block}) eq 'HASH') {
9516: if (ref($blockinfo{$block}{'resources'}) eq 'HASH') {
9517: if ($blockinfo{$block}{'resources'}{$symb}) {
9518: unless (grep(/^\Q$block\E$/,@blockers)) {
9519: push(@blockers,$block);
9520: }
9521: }
9522: }
9523: if (ref($blockinfo{$block}{'maps'}) eq 'HASH') {
9524: if ($blockinfo{$block}{'maps'}{$map}) {
9525: unless (grep(/^\Q$block\E$/,@blockers)) {
9526: push(@blockers,$block);
9527: }
9528: }
9529: }
9530: }
9531: }
9532: }
9533: unless ($noblock) {
9534: return @blockers;
9535: }
9536: return;
9537: }
9538: }
9539:
9540: sub deeplink_check {
9541: my ($priv,$symb,$uri) = @_;
9542: return unless ($env{'request.course.id'});
9543: return unless ($priv eq 'bre');
9544: return if ($env{'request.state'} eq 'construct');
9545: return if ($env{'request.role.adv'});
9546: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
9547: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
9548: my (%possibles,@symbs);
9549: if (!$symb) {
9550: $symb = &symbread($uri,1,1,1,\%possibles);
9551: }
9552: if ($symb) {
9553: @symbs = ($symb);
9554: } elsif (keys(%possibles)) {
9555: @symbs = keys(%possibles);
9556: }
9557:
9558: my ($deeplink_symb,$allow);
9559: if ($env{'request.deeplink.login'}) {
9560: $deeplink_symb = &Apache::loncommon::deeplink_login_symb($cnum,$cdom);
9561: }
9562: foreach my $symb (@symbs) {
9563: last if ($allow);
9564: my $deeplink = &EXT("resource.0.deeplink",$symb);
9565: if ($deeplink eq '') {
9566: $allow = 1;
9567: } else {
9568: my ($state,$others,$listed,$scope,$protect) = split(/,/,$deeplink);
9569: if ($state ne 'only') {
9570: $allow = 1;
9571: } else {
9572: my $check_deeplink_entry;
9573: if ($protect ne 'none') {
9574: my ($acctype,$item) = split(/:/,$protect);
9575: if (($acctype eq 'ltic') && ($env{'user.linkprotector'})) {
9576: if (grep(/^\Q$item\Ec$/,split(/,/,$env{'user.linkprotector'}))) {
9577: $check_deeplink_entry = 1
9578: }
9579: } elsif (($acctype eq 'ltid') && ($env{'user.linkprotector'})) {
9580: if (grep(/^\Q$item\Ed$/,split(/,/,$env{'user.linkprotector'}))) {
9581: $check_deeplink_entry = 1;
9582: }
9583: } elsif (($acctype eq 'key') && ($env{'user.deeplinkkey'})) {
9584: if (grep(/^\Q$item\E$/,split(/,/,$env{'user.deeplinkkey'}))) {
9585: $check_deeplink_entry = 1;
9586: }
9587: }
9588: }
9589: if (($protect eq 'none') || ($check_deeplink_entry)) {
9590: if ($scope eq 'res') {
9591: if ($symb eq $deeplink_symb) {
9592: $allow = 1;
9593: }
9594: } elsif (($scope eq 'map') || ($scope eq 'rec')) {
9595: my ($map_from_symb,$map_from_login);
9596: $map_from_symb = &deversion((&decode_symb($symb))[0]);
9597: if ($deeplink_symb =~ /\.(page|sequence)$/) {
9598: $map_from_login = &deversion((&decode_symb($deeplink_symb))[2]);
9599: } else {
9600: $map_from_login = &deversion((&decode_symb($deeplink_symb))[0]);
9601: }
9602: if (($map_from_symb) && ($map_from_login)) {
9603: if ($map_from_symb eq $map_from_login) {
9604: $allow = 1;
9605: } elsif ($scope eq 'rec') {
9606: my @recurseup = &get_map_hierarchy($map_from_symb,$env{'request.course.id'});
9607: if (grep(/^\Q$map_from_login\E$/,@recurseup)) {
9608: $allow = 1;
9609: }
9610: }
9611: }
9612: }
9613: }
9614: }
9615: }
9616: }
9617: return if ($allow);
9618: return 1;
9619: }
9620:
9621: # -------------------------------- Deversion and split uri into path an filename
9622:
9623: #
9624: # Removes the version from a URI and
9625: # splits it in to its filename and path to the filename.
9626: # Seems like File::Basename could have done this more clearly.
9627: # Parameters:
9628: # $uri - input URI
9629: # Returns:
9630: # Two element list consisting of
9631: # $pathname - the URI up to and excluding the trailing /
9632: # $filename - The part of the URI following the last /
9633: # NOTE:
9634: # Another realization of this is simply:
9635: # use File::Basename;
9636: # ...
9637: # $uri = shift;
9638: # $filename = basename($uri);
9639: # $path = dirname($uri);
9640: # return ($filename, $path);
9641: #
9642: # The implementation below is probably faster however.
9643: #
9644: sub split_uri_for_cond {
9645: my $uri=&deversion(&declutter(shift));
9646: my @uriparts=split(/\//,$uri);
9647: my $filename=pop(@uriparts);
9648: my $pathname=join('/',@uriparts);
9649: return ($pathname,$filename);
9650: }
9651: # --------------------------------------------------- Is a resource on the map?
9652:
9653: sub is_on_map {
9654: my ($pathname,$filename) = &split_uri_for_cond(shift);
9655: #Trying to find the conditional for the file
9656: my $match=($env{'acc.res.'.$env{'request.course.id'}.'.'.$pathname}=~
9657: /\&\Q$filename\E\:([\d\|]+)\&/);
9658: if ($match) {
9659: return (1,$1);
9660: } else {
9661: return (0,0);
9662: }
9663: }
9664:
9665: # --------------------------------------------------------- Get symb from alias
9666:
9667: sub get_symb_from_alias {
9668: my $symb=shift;
9669: my ($map,$resid,$url)=&decode_symb($symb);
9670: # Already is a symb
9671: if ($url) { return $symb; }
9672: # Must be an alias
9673: my $aliassymb='';
9674: my %bighash;
9675: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
9676: &GDBM_READER(),0640)) {
9677: my $rid=$bighash{'mapalias_'.$symb};
9678: if ($rid) {
9679: my ($mapid,$resid)=split(/\./,$rid);
9680: $aliassymb=&encode_symb($bighash{'map_id_'.$mapid},
9681: $resid,$bighash{'src_'.$rid});
9682: }
9683: untie %bighash;
9684: }
9685: return $aliassymb;
9686: }
9687:
9688: # ----------------------------------------------------------------- Define Role
9689:
9690: sub definerole {
9691: if (allowed('mcr','/')) {
9692: my ($rolename,$sysrole,$domrole,$courole,$uname,$udom)=@_;
9693: foreach my $role (split(':',$sysrole)) {
9694: my ($crole,$cqual)=split(/\&/,$role);
9695: if ($pr{'cr:s'}!~/\Q$crole\E/) { return "refused:s:$crole"; }
9696: if ($pr{'cr:s'}=~/\Q$crole\E\&/) {
9697: if ($pr{'cr:s'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
9698: return "refused:s:$crole&$cqual";
9699: }
9700: }
9701: }
9702: foreach my $role (split(':',$domrole)) {
9703: my ($crole,$cqual)=split(/\&/,$role);
9704: if ($pr{'cr:d'}!~/\Q$crole\E/) { return "refused:d:$crole"; }
9705: if ($pr{'cr:d'}=~/\Q$crole\E\&/) {
9706: if ($pr{'cr:d'}!~/\Q$crole\W\&\w*\Q$cqual\E/) {
9707: return "refused:d:$crole&$cqual";
9708: }
9709: }
9710: }
9711: foreach my $role (split(':',$courole)) {
9712: my ($crole,$cqual)=split(/\&/,$role);
9713: if ($pr{'cr:c'}!~/\Q$crole\E/) { return "refused:c:$crole"; }
9714: if ($pr{'cr:c'}=~/\Q$crole\E\&/) {
9715: if ($pr{'cr:c'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
9716: return "refused:c:$crole&$cqual";
9717: }
9718: }
9719: }
9720: my $uhome;
9721: if (($uname ne '') && ($udom ne '')) {
9722: $uhome = &homeserver($uname,$udom);
9723: return $uhome if ($uhome eq 'no_host');
9724: } else {
9725: $uname = $env{'user.name'};
9726: $udom = $env{'user.domain'};
9727: $uhome = $env{'user.home'};
9728: }
9729: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
9730: "$udom:$uname:rolesdef_$rolename=".
9731: escape($sysrole.'_'.$domrole.'_'.$courole);
9732: return reply($command,$uhome);
9733: } else {
9734: return 'refused';
9735: }
9736: }
9737:
9738: # ---------------- Make a metadata query against the network of library servers
9739:
9740: sub metadata_query {
9741: my ($query,$custom,$customshow,$server_array,$domains_hash)=@_;
9742: my %rhash;
9743: my %libserv = &all_library();
9744: my @server_list = (defined($server_array) ? @$server_array
9745: : keys(%libserv) );
9746: for my $server (@server_list) {
9747: my $domains = '';
9748: if (ref($domains_hash) eq 'HASH') {
9749: $domains = $domains_hash->{$server};
9750: }
9751: unless ($custom or $customshow) {
9752: my $reply=&reply("querysend:".&escape($query).':::'.&escape($domains),$server);
9753: $rhash{$server}=$reply;
9754: }
9755: else {
9756: my $reply=&reply("querysend:".&escape($query).':'.
9757: &escape($custom).':'.&escape($customshow).':'.&escape($domains),
9758: $server);
9759: $rhash{$server}=$reply;
9760: }
9761: }
9762: return \%rhash;
9763: }
9764:
9765: # ----------------------------------------- Send log queries and wait for reply
9766:
9767: sub log_query {
9768: my ($uname,$udom,$query,%filters)=@_;
9769: my $uhome=&homeserver($uname,$udom);
9770: if ($uhome eq 'no_host') { return 'error: no_host'; }
9771: my $uhost=&hostname($uhome);
9772: my $command=&escape(join(':',map{$_.'='.$filters{$_}} keys(%filters)));
9773: my $queryid=&reply("querysend:".$query.':'.$udom.':'.$uname.':'.$command,
9774: $uhome);
9775: unless ($queryid=~/^\Q$uhost\E\_/) { return 'error: '.$queryid; }
9776: return get_query_reply($queryid);
9777: }
9778:
9779: # -------------------------- Update MySQL table for portfolio file
9780:
9781: sub update_portfolio_table {
9782: my ($uname,$udom,$file_name,$query,$group,$action) = @_;
9783: if ($group ne '') {
9784: $file_name =~s /^\Q$group\E//;
9785: }
9786: my $homeserver = &homeserver($uname,$udom);
9787: my $queryid=
9788: &reply("querysend:".$query.':'.&escape($uname.':'.$udom.':'.$group).
9789: ':'.&escape($file_name).':'.$action,$homeserver);
9790: my $reply = &get_query_reply($queryid);
9791: return $reply;
9792: }
9793:
9794: # -------------------------- Update MySQL allusers table
9795:
9796: sub update_allusers_table {
9797: my ($uname,$udom,$names) = @_;
9798: my $homeserver = &homeserver($uname,$udom);
9799: my $queryid=
9800: &reply('querysend:allusers:'.&escape($uname).':'.&escape($udom).':'.
9801: 'lastname='.&escape($names->{'lastname'}).'%%'.
9802: 'firstname='.&escape($names->{'firstname'}).'%%'.
9803: 'middlename='.&escape($names->{'middlename'}).'%%'.
9804: 'generation='.&escape($names->{'generation'}).'%%'.
9805: 'permanentemail='.&escape($names->{'permanentemail'}).'%%'.
9806: 'id='.&escape($names->{'id'}),$homeserver);
9807: return;
9808: }
9809:
9810: # ------- Request retrieval of institutional classlists for course(s)
9811:
9812: sub fetch_enrollment_query {
9813: my ($context,$affiliatesref,$replyref,$dom,$cnum) = @_;
9814: my ($homeserver,$sleep,$loopmax);
9815: my $maxtries = 1;
9816: if ($context eq 'automated') {
9817: $homeserver = $perlvar{'lonHostID'};
9818: $sleep = 2;
9819: $loopmax = 100;
9820: $maxtries = 10; # will wait for up to 2000s for retrieval of classlist data before timeout
9821: } else {
9822: $homeserver = &homeserver($cnum,$dom);
9823: }
9824: my $host=&hostname($homeserver);
9825: my $cmd = '';
9826: foreach my $affiliate (keys(%{$affiliatesref})) {
9827: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
9828: }
9829: $cmd =~ s/%%$//;
9830: $cmd = &escape($cmd);
9831: my $query = 'fetchenrollment';
9832: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$env{'user.name'}.':'.$cmd,$homeserver);
9833: unless ($queryid=~/^\Q$host\E\_/) {
9834: &logthis('fetch_enrollment_query: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' context: '.$context.' '.$cnum);
9835: return 'error: '.$queryid;
9836: }
9837: my $reply = &get_query_reply($queryid,$sleep,$loopmax);
9838: my $tries = 1;
9839: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
9840: $reply = &get_query_reply($queryid,$sleep,$loopmax);
9841: $tries ++;
9842: }
9843: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
9844: &logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
9845: } else {
9846: my @responses = split(/:/,$reply);
9847: if (grep { $_ eq $homeserver } ¤t_machine_ids()) {
9848: foreach my $line (@responses) {
9849: my ($key,$value) = split(/=/,$line,2);
9850: $$replyref{$key} = $value;
9851: }
9852: } else {
9853: my $pathname = LONCAPA::tempdir();
9854: foreach my $line (@responses) {
9855: my ($key,$value) = split(/=/,$line);
9856: $$replyref{$key} = $value;
9857: if ($value > 0) {
9858: foreach my $item (@{$$affiliatesref{$key}}) {
9859: my $filename = $dom.'_'.$key.'_'.$item.'_classlist.xml';
9860: my $destname = $pathname.'/'.$filename;
9861: my $xml_classlist = &reply("autoretrieve:".$filename,$homeserver);
9862: if ($xml_classlist =~ /^error/) {
9863: &logthis('fetch_enrollment_query - autoretrieve error: '.$xml_classlist.' for '.$filename.' from server: '.$homeserver.' '.$context.' '.$cnum);
9864: } else {
9865: if ( open(FILE,">",$destname) ) {
9866: print FILE &unescape($xml_classlist);
9867: close(FILE);
9868: } else {
9869: &logthis('fetch_enrollment_query - error opening classlist file '.$destname.' '.$context.' '.$cnum);
9870: }
9871: }
9872: }
9873: }
9874: }
9875: }
9876: return 'ok';
9877: }
9878: return 'error';
9879: }
9880:
9881: sub get_query_reply {
9882: my ($queryid,$sleep,$loopmax) = @_;
9883: if (($sleep eq '') || ($sleep !~ /^\d+\.?\d*$/)) {
9884: $sleep = 0.2;
9885: }
9886: if (($loopmax eq '') || ($loopmax =~ /\D/)) {
9887: $loopmax = 100;
9888: }
9889: my $replyfile=LONCAPA::tempdir().$queryid;
9890: my $reply='';
9891: for (1..$loopmax) {
9892: sleep($sleep);
9893: if (-e $replyfile.'.end') {
9894: if (open(my $fh,"<",$replyfile)) {
9895: $reply = join('',<$fh>);
9896: close($fh);
9897: } else { return 'error: reply_file_error'; }
9898: return &unescape($reply);
9899: }
9900: }
9901: return 'timeout:'.$queryid;
9902: }
9903:
9904: sub courselog_query {
9905: #
9906: # possible filters:
9907: # url: url or symb
9908: # username
9909: # domain
9910: # action: view, submit, grade
9911: # start: timestamp
9912: # end: timestamp
9913: #
9914: my (%filters)=@_;
9915: unless ($env{'request.course.id'}) { return 'no_course'; }
9916: if ($filters{'url'}) {
9917: $filters{'url'}=&symbclean(&declutter($filters{'url'}));
9918: $filters{'url'}=~s/\.(\w+)$/(\\.\\d+)*\\.$1/;
9919: $filters{'url'}=~s/\.(\w+)\_\_\_/(\\.\\d+)*\\.$1/;
9920: }
9921: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
9922: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
9923: return &log_query($cname,$cdom,'courselog',%filters);
9924: }
9925:
9926: sub userlog_query {
9927: #
9928: # possible filters:
9929: # action: log check role
9930: # start: timestamp
9931: # end: timestamp
9932: #
9933: my ($uname,$udom,%filters)=@_;
9934: return &log_query($uname,$udom,'userlog',%filters);
9935: }
9936:
9937: #--------- Call auto-enrollment subs in localenroll.pm for homeserver for course
9938:
9939: sub auto_run {
9940: my ($cnum,$cdom) = @_;
9941: my $response = 0;
9942: my $settings;
9943: my %domconfig = &get_dom('configuration',['autoenroll'],$cdom);
9944: if (ref($domconfig{'autoenroll'}) eq 'HASH') {
9945: $settings = $domconfig{'autoenroll'};
9946: if ($settings->{'run'} eq '1') {
9947: $response = 1;
9948: }
9949: } else {
9950: my $homeserver;
9951: if (&is_course($cdom,$cnum)) {
9952: $homeserver = &homeserver($cnum,$cdom);
9953: } else {
9954: $homeserver = &domain($cdom,'primary');
9955: }
9956: if ($homeserver ne 'no_host') {
9957: $response = &reply('autorun:'.$cdom,$homeserver);
9958: }
9959: }
9960: return $response;
9961: }
9962:
9963: sub auto_get_sections {
9964: my ($cnum,$cdom,$inst_coursecode) = @_;
9965: my $homeserver;
9966: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
9967: $homeserver = &homeserver($cnum,$cdom);
9968: }
9969: if (!defined($homeserver)) {
9970: if ($cdom =~ /^$match_domain$/) {
9971: $homeserver = &domain($cdom,'primary');
9972: }
9973: }
9974: my @secs;
9975: if (defined($homeserver)) {
9976: my $response=&unescape(&reply('autogetsections:'.$inst_coursecode.':'.$cdom,$homeserver));
9977: unless ($response eq 'refused') {
9978: @secs = split(/:/,$response);
9979: }
9980: }
9981: return @secs;
9982: }
9983:
9984: sub auto_new_course {
9985: my ($cnum,$cdom,$inst_course_id,$owner,$coowners) = @_;
9986: my $homeserver = &homeserver($cnum,$cdom);
9987: my $response=&unescape(&reply('autonewcourse:'.$inst_course_id.':'.&escape($owner).':'.$cdom.':'.&escape($coowners),$homeserver));
9988: return $response;
9989: }
9990:
9991: sub auto_validate_courseID {
9992: my ($cnum,$cdom,$inst_course_id) = @_;
9993: my $homeserver = &homeserver($cnum,$cdom);
9994: my $response=&unescape(&reply('autovalidatecourse:'.$inst_course_id.':'.$cdom,$homeserver));
9995: return $response;
9996: }
9997:
9998: sub auto_validate_instcode {
9999: my ($cnum,$cdom,$instcode,$owner) = @_;
10000: my ($homeserver,$response);
10001: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
10002: $homeserver = &homeserver($cnum,$cdom);
10003: }
10004: if (!defined($homeserver)) {
10005: if ($cdom =~ /^$match_domain$/) {
10006: $homeserver = &domain($cdom,'primary');
10007: }
10008: }
10009: $response=&unescape(&reply('autovalidateinstcode:'.$cdom.':'.
10010: &escape($instcode).':'.&escape($owner),$homeserver));
10011: my ($outcome,$description,$defaultcredits) = map { &unescape($_); } split('&',$response,3);
10012: return ($outcome,$description,$defaultcredits);
10013: }
10014:
10015: sub auto_validate_inst_crosslist {
10016: my ($cnum,$cdom,$instcode,$inst_xlist,$coowner) = @_;
10017: my ($homeserver,$response);
10018: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
10019: $homeserver = &homeserver($cnum,$cdom);
10020: }
10021: if (!defined($homeserver)) {
10022: if ($cdom =~ /^$match_domain$/) {
10023: $homeserver = &domain($cdom,'primary');
10024: }
10025: }
10026: unless (($homeserver eq '') || ($homeserver eq 'no_host')) {
10027: $response=&reply('autovalidateinstcrosslist:'.$cdom.':'.
10028: &escape($instcode).':'.&escape($inst_xlist).':'.
10029: &escape($coowner),$homeserver);
10030: }
10031: return $response;
10032: }
10033:
10034: sub auto_create_password {
10035: my ($cnum,$cdom,$authparam,$udom) = @_;
10036: my ($homeserver,$response);
10037: my $create_passwd = 0;
10038: my $authchk = '';
10039: if ($udom =~ /^$match_domain$/) {
10040: $homeserver = &domain($udom,'primary');
10041: }
10042: if ($homeserver eq '') {
10043: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
10044: $homeserver = &homeserver($cnum,$cdom);
10045: }
10046: }
10047: if ($homeserver eq '') {
10048: $authchk = 'nodomain';
10049: } else {
10050: $response=&unescape(&reply('autocreatepassword:'.$authparam.':'.$cdom,$homeserver));
10051: if ($response eq 'refused') {
10052: $authchk = 'refused';
10053: } else {
10054: ($authparam,$create_passwd,$authchk) = split(/:/,$response);
10055: }
10056: }
10057: return ($authparam,$create_passwd,$authchk);
10058: }
10059:
10060: sub auto_photo_permission {
10061: my ($cnum,$cdom,$students) = @_;
10062: my $homeserver = &homeserver($cnum,$cdom);
10063: my ($outcome,$perm_reqd,$conditions) =
10064: split(/:/,&unescape(&reply('autophotopermission:'.$cdom,$homeserver)),3);
10065: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
10066: return (undef,undef);
10067: }
10068: return ($outcome,$perm_reqd,$conditions);
10069: }
10070:
10071: sub auto_checkphotos {
10072: my ($uname,$udom,$pid) = @_;
10073: my $homeserver = &homeserver($uname,$udom);
10074: my ($result,$resulttype);
10075: my $outcome = &unescape(&reply('autophotocheck:'.&escape($udom).':'.
10076: &escape($uname).':'.&escape($pid),
10077: $homeserver));
10078: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
10079: return (undef,undef);
10080: }
10081: if ($outcome) {
10082: ($result,$resulttype) = split(/:/,$outcome);
10083: }
10084: return ($result,$resulttype);
10085: }
10086:
10087: sub auto_photochoice {
10088: my ($cnum,$cdom) = @_;
10089: my $homeserver = &homeserver($cnum,$cdom);
10090: my ($update,$comment) = split(/:/,&unescape(&reply('autophotochoice:'.
10091: &escape($cdom),
10092: $homeserver)));
10093: if ($update =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
10094: return (undef,undef);
10095: }
10096: return ($update,$comment);
10097: }
10098:
10099: sub auto_photoupdate {
10100: my ($affiliatesref,$dom,$cnum,$photo) = @_;
10101: my $homeserver = &homeserver($cnum,$dom);
10102: my $host=&hostname($homeserver);
10103: my $cmd = '';
10104: my $maxtries = 1;
10105: foreach my $affiliate (keys(%{$affiliatesref})) {
10106: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
10107: }
10108: $cmd =~ s/%%$//;
10109: $cmd = &escape($cmd);
10110: my $query = 'institutionalphotos';
10111: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$cnum.':'.$cmd,$homeserver);
10112: unless ($queryid=~/^\Q$host\E\_/) {
10113: &logthis('institutionalphotos: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' and course: '.$cnum);
10114: return 'error: '.$queryid;
10115: }
10116: my $reply = &get_query_reply($queryid);
10117: my $tries = 1;
10118: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
10119: $reply = &get_query_reply($queryid);
10120: $tries ++;
10121: }
10122: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
10123: &logthis('institutionalphotos error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' course: '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
10124: } else {
10125: my @responses = split(/:/,$reply);
10126: my $outcome = shift(@responses);
10127: foreach my $item (@responses) {
10128: my ($key,$value) = split(/=/,$item);
10129: $$photo{$key} = $value;
10130: }
10131: return $outcome;
10132: }
10133: return 'error';
10134: }
10135:
10136: sub auto_instcode_format {
10137: my ($caller,$codedom,$instcodes,$codes,$codetitles,$cat_titles,
10138: $cat_order) = @_;
10139: my $courses = '';
10140: my @homeservers;
10141: if ($caller eq 'global') {
10142: my %servers = &get_servers($codedom,'library');
10143: foreach my $tryserver (keys(%servers)) {
10144: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
10145: push(@homeservers,$tryserver);
10146: }
10147: }
10148: } elsif ($caller eq 'requests') {
10149: if ($codedom =~ /^$match_domain$/) {
10150: my $chome = &domain($codedom,'primary');
10151: unless ($chome eq 'no_host') {
10152: push(@homeservers,$chome);
10153: }
10154: }
10155: } else {
10156: push(@homeservers,&homeserver($caller,$codedom));
10157: }
10158: foreach my $code (keys(%{$instcodes})) {
10159: $courses .= &escape($code).'='.&escape($$instcodes{$code}).'&';
10160: }
10161: chop($courses);
10162: my $ok_response = 0;
10163: my $response;
10164: while (@homeservers > 0 && $ok_response == 0) {
10165: my $server = shift(@homeservers);
10166: $response=&reply('autoinstcodeformat:'.$codedom.':'.$courses,$server);
10167: if ($response !~ /(con_lost|error|no_such_host|refused)/) {
10168: my ($codes_str,$codetitles_str,$cat_titles_str,$cat_order_str) =
10169: split(/:/,$response);
10170: %{$codes} = (%{$codes},&str2hash($codes_str));
10171: push(@{$codetitles},&str2array($codetitles_str));
10172: %{$cat_titles} = (%{$cat_titles},&str2hash($cat_titles_str));
10173: %{$cat_order} = (%{$cat_order},&str2hash($cat_order_str));
10174: $ok_response = 1;
10175: }
10176: }
10177: if ($ok_response) {
10178: return 'ok';
10179: } else {
10180: return $response;
10181: }
10182: }
10183:
10184: sub auto_instcode_defaults {
10185: my ($domain,$returnhash,$code_order) = @_;
10186: my @homeservers;
10187:
10188: my %servers = &get_servers($domain,'library');
10189: foreach my $tryserver (keys(%servers)) {
10190: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
10191: push(@homeservers,$tryserver);
10192: }
10193: }
10194:
10195: my $response;
10196: foreach my $server (@homeservers) {
10197: $response=&reply('autoinstcodedefaults:'.$domain,$server);
10198: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
10199:
10200: foreach my $pair (split(/\&/,$response)) {
10201: my ($name,$value)=split(/\=/,$pair);
10202: if ($name eq 'code_order') {
10203: @{$code_order} = split(/\&/,&unescape($value));
10204: } else {
10205: $returnhash->{&unescape($name)}=&unescape($value);
10206: }
10207: }
10208: return 'ok';
10209: }
10210:
10211: return $response;
10212: }
10213:
10214: sub auto_possible_instcodes {
10215: my ($domain,$codetitles,$cat_titles,$cat_orders,$code_order) = @_;
10216: unless ((ref($codetitles) eq 'ARRAY') && (ref($cat_titles) eq 'HASH') &&
10217: (ref($cat_orders) eq 'HASH') && (ref($code_order) eq 'ARRAY')) {
10218: return;
10219: }
10220: my (@homeservers,$uhome);
10221: if (defined(&domain($domain,'primary'))) {
10222: $uhome=&domain($domain,'primary');
10223: push(@homeservers,&domain($domain,'primary'));
10224: } else {
10225: my %servers = &get_servers($domain,'library');
10226: foreach my $tryserver (keys(%servers)) {
10227: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
10228: push(@homeservers,$tryserver);
10229: }
10230: }
10231: }
10232: my $response;
10233: foreach my $server (@homeservers) {
10234: $response=&reply('autopossibleinstcodes:'.$domain,$server);
10235: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
10236: my ($codetitlestr,$codeorderstr,$cat_title,$cat_order) =
10237: split(':',$response);
10238: @{$codetitles} = map { &unescape($_); } (split('&',$codetitlestr));
10239: @{$code_order} = map { &unescape($_); } (split('&',$codeorderstr));
10240: foreach my $item (split('&',$cat_title)) {
10241: my ($name,$value)=split('=',$item);
10242: $cat_titles->{&unescape($name)}=&thaw_unescape($value);
10243: }
10244: foreach my $item (split('&',$cat_order)) {
10245: my ($name,$value)=split('=',$item);
10246: $cat_orders->{&unescape($name)}=&thaw_unescape($value);
10247: }
10248: return 'ok';
10249: }
10250: return $response;
10251: }
10252:
10253: sub auto_courserequest_checks {
10254: my ($dom) = @_;
10255: my ($homeserver,%validations);
10256: if ($dom =~ /^$match_domain$/) {
10257: $homeserver = &domain($dom,'primary');
10258: }
10259: unless ($homeserver eq 'no_host') {
10260: my $response=&reply('autocrsreqchecks:'.$dom,$homeserver);
10261: unless ($response =~ /(con_lost|error|no_such_host|refused)/) {
10262: my @items = split(/&/,$response);
10263: foreach my $item (@items) {
10264: my ($key,$value) = split('=',$item);
10265: $validations{&unescape($key)} = &thaw_unescape($value);
10266: }
10267: }
10268: }
10269: return %validations;
10270: }
10271:
10272: sub auto_courserequest_validation {
10273: my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist,$custominfo) = @_;
10274: my ($homeserver,$response);
10275: if ($dom =~ /^$match_domain$/) {
10276: $homeserver = &domain($dom,'primary');
10277: }
10278: unless ($homeserver eq 'no_host') {
10279: my $customdata;
10280: if (ref($custominfo) eq 'HASH') {
10281: $customdata = &freeze_escape($custominfo);
10282: }
10283: $response=&unescape(&reply('autocrsreqvalidation:'.$dom.':'.&escape($owner).
10284: ':'.&escape($crstype).':'.&escape($inststatuslist).
10285: ':'.&escape($instcode).':'.&escape($instseclist).':'.
10286: $customdata,$homeserver));
10287: }
10288: return $response;
10289: }
10290:
10291: sub auto_validate_class_sec {
10292: my ($cdom,$cnum,$owners,$inst_class) = @_;
10293: my $homeserver = &homeserver($cnum,$cdom);
10294: my $ownerlist;
10295: if (ref($owners) eq 'ARRAY') {
10296: $ownerlist = join(',',@{$owners});
10297: } else {
10298: $ownerlist = $owners;
10299: }
10300: my $response=&reply('autovalidateclass_sec:'.$inst_class.':'.
10301: &escape($ownerlist).':'.$cdom,$homeserver);
10302: return $response;
10303: }
10304:
10305: sub auto_instsec_reformat {
10306: my ($cdom,$action,$instsecref) = @_;
10307: return unless(($action eq 'clutter') || ($action eq 'declutter'));
10308: my @homeservers;
10309: if (defined(&domain($cdom,'primary'))) {
10310: push(@homeservers,&domain($cdom,'primary'));
10311: } else {
10312: my %servers = &get_servers($cdom,'library');
10313: foreach my $tryserver (keys(%servers)) {
10314: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
10315: push(@homeservers,$tryserver);
10316: }
10317: }
10318: }
10319: my $response;
10320: my %reformatted = %{$instsecref};
10321: foreach my $server (@homeservers) {
10322: if (ref($instsecref) eq 'HASH') {
10323: my $info = &freeze_escape($instsecref);
10324: my $response=&reply('autoinstsecreformat:'.$cdom.':'.
10325: $action.':'.$info,$server);
10326: next if ($response =~ /(con_lost|error|no_such_host|refused|unknown_command)/);
10327: my @items = split(/&/,$response);
10328: foreach my $item (@items) {
10329: my ($key,$value) = split(/=/,$item);
10330: $reformatted{&unescape($key)} = &thaw_unescape($value);
10331: }
10332: }
10333: }
10334: return %reformatted;
10335: }
10336:
10337: sub auto_validate_instclasses {
10338: my ($cdom,$cnum,$owners,$classesref) = @_;
10339: my ($homeserver,%validations);
10340: $homeserver = &homeserver($cnum,$cdom);
10341: unless ($homeserver eq 'no_host') {
10342: my $ownerlist;
10343: if (ref($owners) eq 'ARRAY') {
10344: $ownerlist = join(',',@{$owners});
10345: } else {
10346: $ownerlist = $owners;
10347: }
10348: if (ref($classesref) eq 'HASH') {
10349: my $classes = &freeze_escape($classesref);
10350: my $response=&reply('autovalidateinstclasses:'.&escape($ownerlist).
10351: ':'.$cdom.':'.$classes,$homeserver);
10352: unless ($response =~ /(con_lost|error|no_such_host|refused)/) {
10353: my @items = split(/&/,$response);
10354: foreach my $item (@items) {
10355: my ($key,$value) = split('=',$item);
10356: $validations{&unescape($key)} = &thaw_unescape($value);
10357: }
10358: }
10359: }
10360: }
10361: return %validations;
10362: }
10363:
10364: sub auto_crsreq_update {
10365: my ($cdom,$cnum,$crstype,$action,$ownername,$ownerdomain,$fullname,$title,
10366: $code,$accessstart,$accessend,$inbound) = @_;
10367: my ($homeserver,%crsreqresponse);
10368: if ($cdom =~ /^$match_domain$/) {
10369: $homeserver = &domain($cdom,'primary');
10370: }
10371: unless (($homeserver eq 'no_host') || ($homeserver eq '')) {
10372: my $info;
10373: if (ref($inbound) eq 'HASH') {
10374: $info = &freeze_escape($inbound);
10375: }
10376: my $response=&reply('autocrsrequpdate:'.$cdom.':'.$cnum.':'.&escape($crstype).
10377: ':'.&escape($action).':'.&escape($ownername).':'.
10378: &escape($ownerdomain).':'.&escape($fullname).':'.
10379: &escape($title).':'.&escape($code).':'.
10380: &escape($accessstart).':'.&escape($accessend).':'.$info,
10381: $homeserver);
10382: unless ($response =~ /(con_lost|error|no_such_host|refused)/) {
10383: my @items = split(/&/,$response);
10384: foreach my $item (@items) {
10385: my ($key,$value) = split('=',$item);
10386: $crsreqresponse{&unescape($key)} = &thaw_unescape($value);
10387: }
10388: }
10389: }
10390: return \%crsreqresponse;
10391: }
10392:
10393: sub auto_export_grades {
10394: my ($cdom,$cnum,$inforef,$gradesref) = @_;
10395: my ($homeserver,%exportresponse);
10396: if ($cdom =~ /^$match_domain$/) {
10397: $homeserver = &domain($cdom,'primary');
10398: }
10399: unless (($homeserver eq 'no_host') || ($homeserver eq '')) {
10400: my $info;
10401: if (ref($inforef) eq 'HASH') {
10402: $info = &freeze_escape($inforef);
10403: }
10404: if (ref($gradesref) eq 'HASH') {
10405: my $grades = &freeze_escape($gradesref);
10406: my $response=&reply('encrypt:autoexportgrades:'.$cdom.':'.$cnum.':'.
10407: $info.':'.$grades,$homeserver);
10408: unless ($response =~ /(con_lost|error|no_such_host|refused|unknown_command)/) {
10409: my @items = split(/&/,$response);
10410: foreach my $item (@items) {
10411: my ($key,$value) = split('=',$item);
10412: $exportresponse{&unescape($key)} = &thaw_unescape($value);
10413: }
10414: }
10415: }
10416: }
10417: return \%exportresponse;
10418: }
10419:
10420: sub check_instcode_cloning {
10421: my ($codedefaults,$code_order,$cloner,$clonefromcode,$clonetocode) = @_;
10422: unless ((ref($codedefaults) eq 'HASH') && (ref($code_order) eq 'ARRAY')) {
10423: return;
10424: }
10425: my $canclone;
10426: if (@{$code_order} > 0) {
10427: my $instcoderegexp ='^';
10428: my @clonecodes = split(/\&/,$cloner);
10429: foreach my $item (@{$code_order}) {
10430: if (grep(/^\Q$item\E=/,@clonecodes)) {
10431: foreach my $pair (@clonecodes) {
10432: my ($key,$val) = split(/\=/,$pair,2);
10433: $val = &unescape($val);
10434: if ($key eq $item) {
10435: $instcoderegexp .= '('.$val.')';
10436: last;
10437: }
10438: }
10439: } else {
10440: $instcoderegexp .= $codedefaults->{$item};
10441: }
10442: }
10443: $instcoderegexp .= '$';
10444: my (@from,@to);
10445: eval {
10446: (@from) = ($clonefromcode =~ /$instcoderegexp/);
10447: (@to) = ($clonetocode =~ /$instcoderegexp/);
10448: };
10449: if ((@from > 0) && (@to > 0)) {
10450: my @diffs = &Apache::loncommon::compare_arrays(\@from,\@to);
10451: if (!@diffs) {
10452: $canclone = 1;
10453: }
10454: }
10455: }
10456: return $canclone;
10457: }
10458:
10459: sub default_instcode_cloning {
10460: my ($clonedom,$domdefclone,$clonefromcode,$clonetocode,$codedefaultsref,$codeorderref) = @_;
10461: my (%codedefaults,@code_order,$canclone);
10462: if ((ref($codedefaultsref) eq 'HASH') && (ref($codeorderref) eq 'ARRAY')) {
10463: %codedefaults = %{$codedefaultsref};
10464: @code_order = @{$codeorderref};
10465: } elsif ($clonedom) {
10466: &auto_instcode_defaults($clonedom,\%codedefaults,\@code_order);
10467: }
10468: if (($domdefclone) && (@code_order)) {
10469: my @clonecodes = split(/\+/,$domdefclone);
10470: my $instcoderegexp ='^';
10471: foreach my $item (@code_order) {
10472: if (grep(/^\Q$item\E$/,@clonecodes)) {
10473: $instcoderegexp .= '('.$codedefaults{$item}.')';
10474: } else {
10475: $instcoderegexp .= $codedefaults{$item};
10476: }
10477: }
10478: $instcoderegexp .= '$';
10479: my (@from,@to);
10480: eval {
10481: (@from) = ($clonefromcode =~ /$instcoderegexp/);
10482: (@to) = ($clonetocode =~ /$instcoderegexp/);
10483: };
10484: if ((@from > 0) && (@to > 0)) {
10485: my @diffs = &Apache::loncommon::compare_arrays(\@from,\@to);
10486: if (!@diffs) {
10487: $canclone = 1;
10488: }
10489: }
10490: }
10491: return $canclone;
10492: }
10493:
10494: # ------------------------------------------------------- Course Group routines
10495:
10496: sub get_coursegroups {
10497: my ($cdom,$cnum,$group,$namespace) = @_;
10498: return(&dump($namespace,$cdom,$cnum,$group));
10499: }
10500:
10501: sub modify_coursegroup {
10502: my ($cdom,$cnum,$groupsettings) = @_;
10503: return(&put('coursegroups',$groupsettings,$cdom,$cnum));
10504: }
10505:
10506: sub toggle_coursegroup_status {
10507: my ($cdom,$cnum,$group,$action) = @_;
10508: my ($from_namespace,$to_namespace);
10509: if ($action eq 'delete') {
10510: $from_namespace = 'coursegroups';
10511: $to_namespace = 'deleted_groups';
10512: } else {
10513: $from_namespace = 'deleted_groups';
10514: $to_namespace = 'coursegroups';
10515: }
10516: my %curr_group = &get_coursegroups($cdom,$cnum,$group,$from_namespace);
10517: if (my $tmp = &error(%curr_group)) {
10518: &Apache::lonnet::logthis('Error retrieving group: '.$tmp.' in '.$cnum.':'.$cdom);
10519: return ('read error',$tmp);
10520: } else {
10521: my %savedsettings = %curr_group;
10522: my $result = &put($to_namespace,\%savedsettings,$cdom,$cnum);
10523: my $deloutcome;
10524: if ($result eq 'ok') {
10525: $deloutcome = &del($from_namespace,[$group],$cdom,$cnum);
10526: } else {
10527: return ('write error',$result);
10528: }
10529: if ($deloutcome eq 'ok') {
10530: return 'ok';
10531: } else {
10532: return ('delete error',$deloutcome);
10533: }
10534: }
10535: }
10536:
10537: sub modify_group_roles {
10538: my ($cdom,$cnum,$group_id,$user,$end,$start,$userprivs,$selfenroll,$context,
10539: $othdomby,$requester) = @_;
10540: my $url = '/'.$cdom.'/'.$cnum.'/'.$group_id;
10541: my $role = 'gr/'.&escape($userprivs);
10542: my ($uname,$udom) = split(/:/,$user);
10543: my $result = &assignrole($udom,$uname,$url,$role,$end,$start,'',$selfenroll,$context,
10544: $othdomby,$requester);
10545: if ($result eq 'ok') {
10546: &devalidate_getgroups_cache($udom,$uname,$cdom,$cnum);
10547: }
10548: return $result;
10549: }
10550:
10551: sub modify_coursegroup_membership {
10552: my ($cdom,$cnum,$membership) = @_;
10553: my $result = &put('groupmembership',$membership,$cdom,$cnum);
10554: return $result;
10555: }
10556:
10557: sub get_active_groups {
10558: my ($udom,$uname,$cdom,$cnum) = @_;
10559: my $now = time;
10560: my %groups = ();
10561: foreach my $key (keys(%env)) {
10562: if ($key =~ m-user\.role\.gr\./($match_domain)/($match_courseid)/(\w+)$-) {
10563: my ($start,$end) = split(/\./,$env{$key});
10564: if (($end!=0) && ($end<$now)) { next; }
10565: if (($start!=0) && ($start>$now)) { next; }
10566: if ($1 eq $cdom && $2 eq $cnum) {
10567: $groups{$3} = $env{$key} ;
10568: }
10569: }
10570: }
10571: return %groups;
10572: }
10573:
10574: sub get_group_membership {
10575: my ($cdom,$cnum,$group) = @_;
10576: return(&dump('groupmembership',$cdom,$cnum,$group));
10577: }
10578:
10579: sub get_users_groups {
10580: my ($udom,$uname,$courseid) = @_;
10581: my @usersgroups;
10582: my $cachetime=1800;
10583:
10584: my $hashid="$udom:$uname:$courseid";
10585: my ($grouplist,$cached)=&is_cached_new('getgroups',$hashid);
10586: if (defined($cached)) {
10587: @usersgroups = split(/:/,$grouplist);
10588: } else {
10589: $grouplist = '';
10590: my $courseurl = &courseid_to_courseurl($courseid);
10591: my %roleshash = &dump('roles',$udom,$uname,$courseurl);
10592: my $access_end = $env{'course.'.$courseid.
10593: '.default_enrollment_end_date'};
10594: my $now = time;
10595: foreach my $key (keys(%roleshash)) {
10596: if ($key =~ /^\Q$courseurl\E\/(\w+)\_gr$/) {
10597: my $group = $1;
10598: if ($roleshash{$key} =~ /_(\d+)_(\d+)$/) {
10599: my $start = $2;
10600: my $end = $1;
10601: if ($start == -1) { next; } # deleted from group
10602: if (($start!=0) && ($start>$now)) { next; }
10603: if (($end!=0) && ($end<$now)) {
10604: if ($access_end && $access_end < $now) {
10605: if ($access_end - $end < 86400) {
10606: push(@usersgroups,$group);
10607: }
10608: }
10609: next;
10610: }
10611: push(@usersgroups,$group);
10612: }
10613: }
10614: }
10615: @usersgroups = &sort_course_groups($courseid,@usersgroups);
10616: $grouplist = join(':',@usersgroups);
10617: &do_cache_new('getgroups',$hashid,$grouplist,$cachetime);
10618: }
10619: return @usersgroups;
10620: }
10621:
10622: sub devalidate_getgroups_cache {
10623: my ($udom,$uname,$cdom,$cnum)=@_;
10624: my $courseid = $cdom.'_'.$cnum;
10625:
10626: my $hashid="$udom:$uname:$courseid";
10627: &devalidate_cache_new('getgroups',$hashid);
10628: }
10629:
10630: # ------------------------------------------------------------------ Plain Text
10631:
10632: sub plaintext {
10633: my ($short,$type,$cid,$forcedefault) = @_;
10634: if ($short =~ m{^cr/}) {
10635: return (split('/',$short))[-1];
10636: }
10637: if (!defined($cid)) {
10638: $cid = $env{'request.course.id'};
10639: }
10640: my %rolenames = (
10641: Course => 'std',
10642: Community => 'alt1',
10643: Placement => 'std',
10644: );
10645: if ($cid ne '') {
10646: if ($env{'course.'.$cid.'.'.$short.'.plaintext'} ne '') {
10647: unless ($forcedefault) {
10648: my $roletext = $env{'course.'.$cid.'.'.$short.'.plaintext'};
10649: &Apache::lonlocal::mt_escape(\$roletext);
10650: return &Apache::lonlocal::mt($roletext);
10651: }
10652: }
10653: }
10654: if ((defined($type)) && (defined($rolenames{$type})) &&
10655: (defined($rolenames{$type})) &&
10656: (defined($prp{$short}{$rolenames{$type}}))) {
10657: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$type}});
10658: } elsif ($cid ne '') {
10659: my $crstype = $env{'course.'.$cid.'.type'};
10660: if (($crstype ne '') && (defined($rolenames{$crstype})) &&
10661: (defined($prp{$short}{$rolenames{$crstype}}))) {
10662: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$crstype}});
10663: }
10664: }
10665: return &Apache::lonlocal::mt($prp{$short}{'std'});
10666: }
10667:
10668: # ----------------------------------------------------------------- Assign Role
10669:
10670: sub assignrole {
10671: my ($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,
10672: $context,$othdomby,$requester,$reqsec,$reqrole)=@_;
10673: my ($mrole,$rolelogcontext);
10674: if ($role =~ /^cr\//) {
10675: my $cwosec=$url;
10676: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
10677: if ((!&allowed('ccr',$cwosec)) && (!&allowed('ccr',$udom))) {
10678: my $refused = 1;
10679: if ($context eq 'requestcourses') {
10680: if (($env{'user.name'} ne '') && ($env{'user.domain'} ne '')) {
10681: if ($role =~ m{^cr/($match_domain)/($match_username)/([^/]+)$}) {
10682: if (($1 eq $env{'user.domain'}) && ($2 eq $env{'user.name'})) {
10683: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});
10684: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
10685: if ($crsenv{'internal.courseowner'} eq
10686: $env{'user.name'}.':'.$env{'user.domain'}) {
10687: $refused = '';
10688: }
10689: }
10690: }
10691: }
10692: } elsif (($context eq 'course') && ($othdomby eq 'othdombyuser')) {
10693: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});
10694: my ($sec) = ($url =~ m{^/\Q$cwosec\E/(.*)$});
10695: my $key = "$uname:$udom:$role:$sec";
10696: my %queuedrolereq = &Apache::lonnet::get('nohist_othdomqueued',[$key],$cdom,$cnum);
10697: if ((exists($queuedrolereq{$key})) && (ref($queuedrolereq{$key}) eq 'HASH')) {
10698: if (($queuedrolereq{$key}{'adj'} eq 'user') && ($queuedrolereq{$key}{'requester'} eq $requester)) {
10699: $refused = '';
10700: }
10701: }
10702: }
10703: if ($refused) {
10704: &logthis('Refused custom assignrole: '.
10705: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.
10706: ' by '.$env{'user.name'}.' at '.$env{'user.domain'});
10707: return 'refused';
10708: }
10709: }
10710: $mrole='cr';
10711: } elsif ($role =~ /^gr\//) {
10712: my $cwogrp=$url;
10713: $cwogrp=~s{^/($match_domain)/($match_courseid)/.*}{$1/$2};
10714: if (!&allowed('mdg',$cwogrp)) {
10715: my $refused = 1;
10716: if (($refused) && ($othdomby eq 'othdombyuser') && ($requester ne '') && ($reqrole ne '')) {
10717: my ($cdom,$cnum) = ($cwogrp =~ m{^/?($match_domain)/($match_courseid)$});
10718: my $key = "$uname:$udom:$reqrole:$reqsec";
10719: my %queuedrolereq = &Apache::lonnet::get('nohist_othdomqueued',[$key],$cdom,$cnum);
10720: if ((exists($queuedrolereq{$key})) && (ref($queuedrolereq{$key}) eq 'HASH')) {
10721: if (($queuedrolereq{$key}{'adj'} eq 'user') && ($queuedrolereq{$key}{'requester'} eq $requester)) {
10722: $refused = '';
10723: }
10724: }
10725: }
10726: if ($refused) {
10727: &logthis('Refused group assignrole: '.
10728: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
10729: $env{'user.name'}.' at '.$env{'user.domain'});
10730: return 'refused';
10731: }
10732: }
10733: $mrole='gr';
10734: } else {
10735: my $cwosec=$url;
10736: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
10737: if (!(&allowed('c'.$role,$cwosec)) && !(&allowed('c'.$role,$udom))) {
10738: my $refused;
10739: if (($env{'request.course.sec'} ne '') && ($role eq 'st')) {
10740: if (!(&allowed('c'.$role,$url))) {
10741: $refused = 1;
10742: }
10743: } else {
10744: $refused = 1;
10745: }
10746: if ($refused) {
10747: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});
10748: if (!$selfenroll && ($othdomby ne 'othdombyuser') &&
10749: (($context eq 'course') || ($context eq 'ltienroll' && $env{'request.lti.login'}))) {
10750: my %crsenv;
10751: if ($role eq 'cc' || $role eq 'co') {
10752: %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
10753: if (($role eq 'cc') && ($cnum !~ /^$match_community$/)) {
10754: if ($env{'request.role'} eq 'cc./'.$cdom.'/'.$cnum) {
10755: if ($crsenv{'internal.courseowner'} eq
10756: $env{'user.name'}.':'.$env{'user.domain'}) {
10757: $refused = '';
10758: }
10759: }
10760: } elsif (($role eq 'co') && ($cnum =~ /^$match_community$/)) {
10761: if ($env{'request.role'} eq 'co./'.$cdom.'/'.$cnum) {
10762: if ($crsenv{'internal.courseowner'} eq
10763: $env{'user.name'}.':'.$env{'user.domain'}) {
10764: $refused = '';
10765: }
10766: }
10767: }
10768: }
10769: } elsif (($selfenroll == 1) && ($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
10770: if ($role eq 'st') {
10771: $refused = '';
10772: } elsif (($context eq 'ltienroll') && ($env{'request.lti.login'})) {
10773: $refused = '';
10774: }
10775: } elsif ($othdomby eq 'othdombyuser') {
10776: my ($key,%queuedrolereq);
10777: if ($context eq 'course') {
10778: my ($sec) = ($url =~ m{^/\Q$cwosec\E/(.*)$});
10779: $key = "$uname:$udom:$role:$sec";
10780: %queuedrolereq = &Apache::lonnet::get('nohist_othdomqueued',[$key],$cdom,$cnum);
10781: if ((exists($queuedrolereq{$key})) && (ref($queuedrolereq{$key}) eq 'HASH')) {
10782: if (($queuedrolereq{$key}{'adj'} eq 'user') && ($queuedrolereq{$key}{'requester'} eq $requester)) {
10783: if ((($role eq 'cc') && ($cnum !~ /^$match_community$/)) ||
10784: (($role eq 'co') && ($cnum =~ /^$match_community$/))) {
10785: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
10786: if ($crsenv{'internal.courseowner'} eq $requester) {
10787: $refused = '';
10788: }
10789: } elsif ($role =~ /^(?:in|ta|ep|st)$/) {
10790: $refused = '';
10791: }
10792: }
10793: }
10794: } elsif (($context eq 'author') && ($role =~ /^ca|aa$/)) {
10795: my $key = "$uname:$udom:$role";
10796: my ($audom,$auname) = ($url =~ m{^/($match_domain)/($match_username)$});
10797: if (($audom ne '') && ($auname ne '')) {
10798: my %queuedrolereq = &Apache::lonnet::get('nohist_othdomqueued',[$key],$audom,$auname);
10799: if ((exists($queuedrolereq{$key})) && (ref($queuedrolereq{$key}) eq 'HASH')) {
10800: if (($queuedrolereq{$key}{'adj'} eq 'user') && ($queuedrolereq{$key}{'requester'} eq $requester)) {
10801: $refused = '';
10802: }
10803: }
10804: }
10805: } elsif (($context eq 'domain') && ($role ne 'dc') && ($role ne 'su')) {
10806: my $key = "$uname:$udom:$role";
10807: my ($roledom) = ($url =~ m{^/($match_domain)/\Q$role\E$});
10808: if ($roledom ne '') {
10809: my $confname = $roledom.'-domainconfig';
10810: my %queuedrolereq = &Apache::lonnet::get('nohist_othdomqueued',[$key],$roledom,$confname);
10811: if ((exists($queuedrolereq{$key})) && (ref($queuedrolereq{$key}) eq 'HASH')) {
10812: if (($queuedrolereq{$key}{'adj'} eq 'user') && ($queuedrolereq{$key}{'requester'} eq $requester)) {
10813: $refused = '';
10814: }
10815: }
10816: }
10817: }
10818: } elsif ($context eq 'requestcourses') {
10819: my @possroles = ('st','ta','ep','in','cc','co');
10820: if ((grep(/^\Q$role\E$/,@possroles)) && ($env{'user.name'} ne '' && $env{'user.domain'} ne '')) {
10821: my $wrongcc;
10822: if ($cnum =~ /^$match_community$/) {
10823: $wrongcc = 1 if ($role eq 'cc');
10824: } else {
10825: $wrongcc = 1 if ($role eq 'co');
10826: }
10827: unless ($wrongcc) {
10828: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
10829: if ($crsenv{'internal.courseowner'} eq
10830: $env{'user.name'}.':'.$env{'user.domain'}) {
10831: $refused = '';
10832: }
10833: }
10834: }
10835: } elsif ($context eq 'requestauthor') {
10836: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
10837: ($url eq '/'.$udom.'/') && ($role eq 'au')) {
10838: if ($env{'environment.requestauthor'} eq 'automatic') {
10839: $refused = '';
10840: } else {
10841: my %domdefaults = &get_domain_defaults($udom);
10842: if (ref($domdefaults{'requestauthor'}) eq 'HASH') {
10843: my $checkbystatus;
10844: if ($env{'user.adv'}) {
10845: my $disposition = $domdefaults{'requestauthor'}{'_LC_adv'};
10846: if ($disposition eq 'automatic') {
10847: $refused = '';
10848: } elsif ($disposition eq '') {
10849: $checkbystatus = 1;
10850: }
10851: } else {
10852: $checkbystatus = 1;
10853: }
10854: if ($checkbystatus) {
10855: if ($env{'environment.inststatus'}) {
10856: my @inststatuses = split(/,/,$env{'environment.inststatus'});
10857: foreach my $type (@inststatuses) {
10858: if (($type ne '') &&
10859: ($domdefaults{'requestauthor'}{$type} eq 'automatic')) {
10860: $refused = '';
10861: }
10862: }
10863: } elsif ($domdefaults{'requestauthor'}{'default'} eq 'automatic') {
10864: $refused = '';
10865: }
10866: }
10867: }
10868: }
10869: }
10870: } elsif (($context eq 'author') && (($role eq 'ca' || $role eq 'aa'))) {
10871: if ($url =~ m{^/($match_domain)/($match_username)$}) {
10872: my ($audom,$auname) = ($1,$2);
10873: if ((&Apache::lonnet::allowed('v'.$role,"$audom/$auname")) &&
10874: ($env{"environment.internal.manager.$url"})) {
10875: $refused = '';
10876: $rolelogcontext = 'coauthor';
10877: }
10878: }
10879: }
10880: if ($refused) {
10881: &logthis('Refused assignrole: '.$udom.' '.$uname.' '.$url.
10882: ' '.$role.' '.$end.' '.$start.' by '.
10883: $env{'user.name'}.' at '.$env{'user.domain'});
10884: return 'refused';
10885: }
10886: }
10887: } elsif ($role eq 'au') {
10888: if ($url ne '/'.$udom.'/') {
10889: &logthis('Attempt by '.$env{'user.name'}.':'.$env{'user.domain'}.
10890: ' to assign author role for '.$uname.':'.$udom.
10891: ' in domain: '.$url.' refused (wrong domain).');
10892: return 'refused';
10893: }
10894: }
10895: $mrole=$role;
10896: }
10897: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
10898: "$udom:$uname:$url".'_'."$mrole=$role";
10899: if ($end) { $command.='_'.$end; }
10900: if ($start) {
10901: if ($end) {
10902: $command.='_'.$start;
10903: } else {
10904: $command.='_0_'.$start;
10905: }
10906: }
10907: my $origstart = $start;
10908: my $origend = $end;
10909: my $delflag;
10910: # actually delete
10911: if ($deleteflag) {
10912: if ((&allowed('dro',$udom)) || (&allowed('dro',$url))) {
10913: # modify command to delete the role
10914: $command="encrypt:rolesdel:$env{'user.domain'}:$env{'user.name'}:".
10915: "$udom:$uname:$url".'_'."$mrole";
10916: &logthis("$env{'user.name'} at $env{'user.domain'} deletes $mrole in $url for $uname at $udom");
10917: # set start and finish to negative values for userrolelog
10918: $start=-1;
10919: $end=-1;
10920: $delflag = 1;
10921: }
10922: }
10923: # send command
10924: my $answer=&reply($command,&homeserver($uname,$udom));
10925: # log new user role if status is ok
10926: if ($answer eq 'ok') {
10927: &userrolelog($role,$uname,$udom,$url,$start,$end);
10928: if (($role eq 'cc') || ($role eq 'in') ||
10929: ($role eq 'ep') || ($role eq 'ad') ||
10930: ($role eq 'ta') || ($role eq 'st') ||
10931: ($role=~/^cr/) || ($role eq 'gr') ||
10932: ($role eq 'co')) {
10933: # for course roles, perform group memberships changes triggered by role change.
10934: unless ($role =~ /^gr/) {
10935: &Apache::longroup::group_changes($udom,$uname,$url,$role,$origend,
10936: $origstart,$selfenroll,$context);
10937: }
10938: &courserolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
10939: $selfenroll,$context,$othdomby,$requester);
10940: } elsif (($role eq 'li') || ($role eq 'dg') || ($role eq 'sc') ||
10941: ($role eq 'au') || ($role eq 'dc') || ($role eq 'dh') ||
10942: ($role eq 'da')) {
10943: &domainrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
10944: $context,$othdomby,$requester);
10945: } elsif (($role eq 'ca') || ($role eq 'aa')) {
10946: if ($rolelogcontext eq '') {
10947: $rolelogcontext = $context;
10948: }
10949: &coauthorrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
10950: $rolelogcontext,$othdomby,$requester);
10951: }
10952: if ($role eq 'cc') {
10953: &autoupdate_coowners($url,$end,$start,$uname,$udom);
10954: }
10955: }
10956: return $answer;
10957: }
10958:
10959: sub autoupdate_coowners {
10960: my ($url,$end,$start,$uname,$udom) = @_;
10961: my ($cdom,$cnum) = ($url =~ m{^/($match_domain)/($match_courseid)});
10962: if (($cdom ne '') && ($cnum ne '')) {
10963: my $now = time;
10964: my %domdesign = &Apache::loncommon::get_domainconf($cdom);
10965: if ($domdesign{$cdom.'.autoassign.co-owners'}) {
10966: my %coursehash = &coursedescription($cdom.'_'.$cnum);
10967: my $instcode = $coursehash{'internal.coursecode'};
10968: my $xlists = $coursehash{'internal.crosslistings'};
10969: if ($instcode ne '') {
10970: if (($start && $start <= $now) && ($end == 0) || ($end > $now)) {
10971: unless ($coursehash{'internal.courseowner'} eq $uname.':'.$udom) {
10972: my ($delcoowners,@newcoowners,$putresult,$delresult,$coowners);
10973: my ($result,$desc) = &auto_validate_instcode($cnum,$cdom,$instcode,$uname.':'.$udom);
10974: unless ($result eq 'valid') {
10975: if ($xlists ne '') {
10976: foreach my $xlist (split(',',$xlists)) {
10977: my ($inst_crosslist,$lcsec) = split(':',$xlist);
10978: $result =
10979: &auto_validate_inst_crosslist($cnum,$cdom,$instcode,
10980: $inst_crosslist,$uname.':'.$udom);
10981: last if ($result eq 'valid');
10982: }
10983: }
10984: }
10985: if ($result eq 'valid') {
10986: if ($coursehash{'internal.co-owners'}) {
10987: foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {
10988: push(@newcoowners,$coowner);
10989: }
10990: unless (grep(/^\Q$uname\E:\Q$udom\E$/,@newcoowners)) {
10991: push(@newcoowners,$uname.':'.$udom);
10992: }
10993: @newcoowners = sort(@newcoowners);
10994: } else {
10995: push(@newcoowners,$uname.':'.$udom);
10996: }
10997: } elsif ($coursehash{'internal.co-owners'}) {
10998: foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {
10999: unless ($coowner eq $uname.':'.$udom) {
11000: push(@newcoowners,$coowner);
11001: }
11002: }
11003: unless (@newcoowners > 0) {
11004: $delcoowners = 1;
11005: $coowners = '';
11006: }
11007: }
11008: if (@newcoowners || $delcoowners) {
11009: &store_coowners($cdom,$cnum,$coursehash{'home'},
11010: $delcoowners,@newcoowners);
11011: }
11012: }
11013: }
11014: }
11015: }
11016: }
11017: }
11018:
11019: sub store_coowners {
11020: my ($cdom,$cnum,$chome,$delcoowners,@newcoowners) = @_;
11021: my $cid = $cdom.'_'.$cnum;
11022: my ($coowners,$delresult,$putresult);
11023: if (@newcoowners) {
11024: $coowners = join(',',@newcoowners);
11025: my %coownershash = (
11026: 'internal.co-owners' => $coowners,
11027: );
11028: $putresult = &put('environment',\%coownershash,$cdom,$cnum);
11029: if ($putresult eq 'ok') {
11030: if ($env{'course.'.$cid.'.num'} eq $cnum) {
11031: &appenv({'course.'.$cid.'.internal.co-owners' => $coowners});
11032: }
11033: }
11034: }
11035: if ($delcoowners) {
11036: $delresult = &Apache::lonnet::del('environment',['internal.co-owners'],$cdom,$cnum);
11037: if ($delresult eq 'ok') {
11038: if ($env{'course.'.$cid.'.internal.co-owners'}) {
11039: &Apache::lonnet::delenv('course.'.$cid.'.internal.co-owners');
11040: }
11041: }
11042: }
11043: if (($putresult eq 'ok') || ($delresult eq 'ok')) {
11044: my %crsinfo =
11045: &courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.');
11046: if (ref($crsinfo{$cid}) eq 'HASH') {
11047: $crsinfo{$cid}{'co-owners'} = \@newcoowners;
11048: my $cidput = &courseidput($cdom,\%crsinfo,$chome,'notime');
11049: }
11050: }
11051: }
11052:
11053: # -------------------------------------------------- Modify user authentication
11054: # Overrides without validation
11055:
11056: sub modifyuserauth {
11057: my ($udom,$uname,$umode,$upass)=@_;
11058: my $uhome=&homeserver($uname,$udom);
11059: my $allowed;
11060: if (&allowed('mau',$udom)) {
11061: $allowed = 1;
11062: } elsif (($umode eq 'internal') && ($udom eq $env{'user.domain'}) &&
11063: ($env{'request.course.id'}) && (&allowed('mip',$env{'request.course.id'})) &&
11064: (!$env{'course.'.$env{'request.course.id'}.'.internal.nopasswdchg'})) {
11065: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
11066: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
11067: if (($cdom ne '') && ($cnum ne '')) {
11068: my $is_owner = &is_course_owner($cdom,$cnum);
11069: if ($is_owner) {
11070: $allowed = 1;
11071: }
11072: }
11073: }
11074: unless ($allowed) { return 'refused'; }
11075: &logthis('Call to modify user authentication '.$udom.', '.$uname.', '.
11076: $umode.' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
11077: ' in domain '.$env{'request.role.domain'});
11078: my $reply=&reply('encrypt:changeuserauth:'.$udom.':'.$uname.':'.$umode.':'.
11079: &escape($upass),$uhome);
11080: my $ip = &get_requestor_ip();
11081: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
11082: 'Authentication changed for '.$udom.', '.$uname.', '.$umode.
11083: '(Remote '.$ip.'): '.$reply);
11084: &log($udom,,$uname,$uhome,
11085: 'Authentication changed by '.$env{'user.domain'}.', '.
11086: $env{'user.name'}.', '.$umode.
11087: '(Remote '.$ip.'): '.$reply);
11088: unless ($reply eq 'ok') {
11089: &logthis('Authentication mode error: '.$reply);
11090: return 'error: '.$reply;
11091: }
11092: return 'ok';
11093: }
11094:
11095: # --------------------------------------------------------------- Modify a user
11096:
11097: sub modifyuser {
11098: my ($udom, $uname, $uid,
11099: $umode, $upass, $first,
11100: $middle, $last, $gene,
11101: $forceid, $desiredhome, $email, $inststatus, $candelete)=@_;
11102: $udom= &LONCAPA::clean_domain($udom);
11103: $uname=&LONCAPA::clean_username($uname);
11104: my $showcandelete = 'none';
11105: if (ref($candelete) eq 'ARRAY') {
11106: if (@{$candelete} > 0) {
11107: $showcandelete = join(', ',@{$candelete});
11108: }
11109: }
11110: &logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '.
11111: $umode.', '.$first.', '.$middle.', '.
11112: $last.', '.$gene.'(forceid: '.$forceid.'; candelete: '.$showcandelete.')'.
11113: (defined($desiredhome) ? ' desiredhome = '.$desiredhome :
11114: ' desiredhome not specified').
11115: ' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
11116: ' in domain '.$env{'request.role.domain'});
11117: my $uhome=&homeserver($uname,$udom,'true');
11118: my $newuser;
11119: if ($uhome eq 'no_host') {
11120: $newuser = 1;
11121: unless (($umode && ($upass ne '')) || ($umode eq 'localauth') ||
11122: ($umode eq 'lti')) {
11123: return 'error: more information needed to create new user';
11124: }
11125: }
11126: # ----------------------------------------------------------------- Create User
11127: if (($uhome eq 'no_host') &&
11128: (($umode && $upass) || ($umode eq 'localauth') || ($umode eq 'lti'))) {
11129: my $unhome='';
11130: if (defined($desiredhome) && &host_domain($desiredhome) eq $udom) {
11131: $unhome = $desiredhome;
11132: } elsif($env{'course.'.$env{'request.course.id'}.'.domain'} eq $udom) {
11133: $unhome=$env{'course.'.$env{'request.course.id'}.'.home'};
11134: } else { # load balancing routine for determining $unhome
11135: my $loadm=10000000;
11136: my %servers = &get_servers($udom,'library');
11137: foreach my $tryserver (keys(%servers)) {
11138: my $answer=reply('load',$tryserver);
11139: if (($answer=~/\d+/) && ($answer<$loadm)) {
11140: $loadm=$answer;
11141: $unhome=$tryserver;
11142: }
11143: }
11144: }
11145: if (($unhome eq '') || ($unhome eq 'no_host')) {
11146: return 'error: unable to find a home server for '.$uname.
11147: ' in domain '.$udom;
11148: }
11149: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':'.$umode.':'.
11150: &escape($upass),$unhome);
11151: unless ($reply eq 'ok') {
11152: return 'error: '.$reply;
11153: }
11154: $uhome=&homeserver($uname,$udom,'true');
11155: if (($uhome eq '') || ($uhome eq 'no_host') || ($uhome ne $unhome)) {
11156: return 'error: unable verify users home machine.';
11157: }
11158: } # End of creation of new user
11159: # ---------------------------------------------------------------------- Add ID
11160: if ($uid) {
11161: $uid=~tr/A-Z/a-z/;
11162: my %uidhash=&idrget($udom,$uname);
11163: if (($uidhash{$uname}) && ($uidhash{$uname}!~/error\:/)
11164: && (!$forceid)) {
11165: unless ($uid eq $uidhash{$uname}) {
11166: return 'error: user id "'.$uid.'" does not match '.
11167: 'current user id "'.$uidhash{$uname}.'".';
11168: }
11169: } else {
11170: &idput($udom,{$uname => $uid},$uhome,'ids');
11171: }
11172: }
11173: # -------------------------------------------------------------- Add names, etc
11174: my @tmp=&get('environment',
11175: ['firstname','middlename','lastname','generation','id',
11176: 'permanentemail','inststatus'],
11177: $udom,$uname);
11178: my (%names,%oldnames);
11179: if ($tmp[0] =~ m/^error:.*/) {
11180: %names=();
11181: } else {
11182: %names = @tmp;
11183: %oldnames = %names;
11184: }
11185: #
11186: # If name, email and/or uid are blank (e.g., because an uploaded file
11187: # of users did not contain them), do not overwrite existing values
11188: # unless field is in $candelete array ref.
11189: #
11190:
11191: my @fields = ('firstname','middlename','lastname','generation',
11192: 'permanentemail','id');
11193: my %newvalues;
11194: if (ref($candelete) eq 'ARRAY') {
11195: foreach my $field (@fields) {
11196: if (grep(/^\Q$field\E$/,@{$candelete})) {
11197: if ($field eq 'firstname') {
11198: $names{$field} = $first;
11199: } elsif ($field eq 'middlename') {
11200: $names{$field} = $middle;
11201: } elsif ($field eq 'lastname') {
11202: $names{$field} = $last;
11203: } elsif ($field eq 'generation') {
11204: $names{$field} = $gene;
11205: } elsif ($field eq 'permanentemail') {
11206: $names{$field} = $email;
11207: } elsif ($field eq 'id') {
11208: $names{$field} = $uid;
11209: }
11210: }
11211: }
11212: }
11213: if ($first) { $names{'firstname'} = $first; }
11214: if (defined($middle)) { $names{'middlename'} = $middle; }
11215: if ($last) { $names{'lastname'} = $last; }
11216: if (defined($gene)) { $names{'generation'} = $gene; }
11217: if ($email) {
11218: $email=~s/[^\w\@\.\-\,]//gs;
11219: if ($email=~/\@/) { $names{'permanentemail'} = $email; }
11220: }
11221: if ($uid) { $names{'id'} = $uid; }
11222: if (defined($inststatus)) {
11223: $names{'inststatus'} = '';
11224: my ($usertypes,$typesorder) = &retrieve_inst_usertypes($udom);
11225: if (ref($usertypes) eq 'HASH') {
11226: my @okstatuses;
11227: foreach my $item (split(/:/,$inststatus)) {
11228: if (defined($usertypes->{$item})) {
11229: push(@okstatuses,$item);
11230: }
11231: }
11232: if (@okstatuses) {
11233: $names{'inststatus'} = join(':', map { &escape($_); } @okstatuses);
11234: }
11235: }
11236: }
11237: my $logmsg = $udom.', '.$uname.', '.$uid.', '.
11238: $umode.', '.$first.', '.$middle.', '.
11239: $last.', '.$gene.', '.$email.', '.$inststatus;
11240: if ($env{'user.name'} ne '' && $env{'user.domain'}) {
11241: $logmsg .= ' by '.$env{'user.name'}.' at '.$env{'user.domain'};
11242: } else {
11243: $logmsg .= ' during self creation';
11244: }
11245: my $changed;
11246: if ($newuser) {
11247: $changed = 1;
11248: } else {
11249: foreach my $field (@fields) {
11250: if ($names{$field} ne $oldnames{$field}) {
11251: $changed = 1;
11252: last;
11253: }
11254: }
11255: }
11256: unless ($changed) {
11257: $logmsg = 'No changes in user information needed for: '.$logmsg;
11258: &logthis($logmsg);
11259: return 'ok';
11260: }
11261: my $reply = &put('environment', \%names, $udom,$uname);
11262: if ($reply ne 'ok') {
11263: return 'error: '.$reply;
11264: }
11265: if ($names{'permanentemail'} ne $oldnames{'permanentemail'}) {
11266: &devalidate_cache_new('emailscache',$uname.':'.$udom);
11267: }
11268: my $sqlresult = &update_allusers_table($uname,$udom,\%names);
11269: &devalidate_cache_new('namescache',$uname.':'.$udom);
11270: $logmsg = 'Success modifying user '.$logmsg;
11271: &logthis($logmsg);
11272: return 'ok';
11273: }
11274:
11275: # -------------------------------------------------------------- Modify student
11276:
11277: sub modifystudent {
11278: my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec,
11279: $end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid,
11280: $selfenroll,$context,$inststatus,$credits,$instsec)=@_;
11281: if (!$cid) {
11282: unless ($cid=$env{'request.course.id'}) {
11283: return 'not_in_class';
11284: }
11285: }
11286: # --------------------------------------------------------------- Make the user
11287: my $reply=&modifyuser
11288: ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$forceid,
11289: $desiredhome,$email,$inststatus);
11290: unless ($reply eq 'ok') { return $reply; }
11291: # This will cause &modify_student_enrollment to get the uid from the
11292: # student's environment
11293: $uid = undef if (!$forceid);
11294: $reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last,
11295: $gene,$usec,$end,$start,$type,$locktype,
11296: $cid,$selfenroll,$context,$credits,$instsec);
11297: return $reply;
11298: }
11299:
11300: sub modify_student_enrollment {
11301: my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type,
11302: $locktype,$cid,$selfenroll,$context,$credits,$instsec,$othdomby,$requester) = @_;
11303: my ($cdom,$cnum,$chome);
11304: if (!$cid) {
11305: unless ($cid=$env{'request.course.id'}) {
11306: return 'not_in_class';
11307: }
11308: $cdom=$env{'course.'.$cid.'.domain'};
11309: $cnum=$env{'course.'.$cid.'.num'};
11310: } else {
11311: ($cdom,$cnum)=split(/_/,$cid);
11312: }
11313: $chome=$env{'course.'.$cid.'.home'};
11314: if (!$chome) {
11315: $chome=&homeserver($cnum,$cdom);
11316: }
11317: if (!$chome) { return 'unknown_course'; }
11318: # Make sure the user exists
11319: my $uhome=&homeserver($uname,$udom);
11320: if (($uhome eq '') || ($uhome eq 'no_host')) {
11321: return 'error: no such user';
11322: }
11323: # Get student data if we were not given enough information
11324: if (!defined($first) || $first eq '' ||
11325: !defined($last) || $last eq '' ||
11326: !defined($uid) || $uid eq '' ||
11327: !defined($middle) || $middle eq '' ||
11328: !defined($gene) || $gene eq '') {
11329: # They did not supply us with enough data to enroll the student, so
11330: # we need to pick up more information.
11331: my %tmp = &get('environment',
11332: ['firstname','middlename','lastname', 'generation','id']
11333: ,$udom,$uname);
11334:
11335: #foreach my $key (keys(%tmp)) {
11336: # &logthis("key $key = ".$tmp{$key});
11337: #}
11338: $first = $tmp{'firstname'} if (!defined($first) || $first eq '');
11339: $middle = $tmp{'middlename'} if (!defined($middle) || $middle eq '');
11340: $last = $tmp{'lastname'} if (!defined($last) || $last eq '');
11341: $gene = $tmp{'generation'} if (!defined($gene) || $gene eq '');
11342: $uid = $tmp{'id'} if (!defined($uid) || $uid eq '');
11343: }
11344: my $fullname = &format_name($first,$middle,$last,$gene,'lastname');
11345: my $user = "$uname:$udom";
11346: my %old_entry = &get('classlist',[$user],$cdom,$cnum);
11347: my $reply=cput('classlist',
11348: {$user =>
11349: join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype,$credits,$instsec) },
11350: $cdom,$cnum);
11351: if (($reply eq 'ok') || ($reply eq 'delayed')) {
11352: &devalidate_getsection_cache($udom,$uname,$cid);
11353: } else {
11354: return 'error: '.$reply;
11355: }
11356: # Add student role to user
11357: my $uurl='/'.$cid;
11358: $uurl=~s/\_/\//g;
11359: if ($usec) {
11360: $uurl.='/'.$usec;
11361: }
11362: my $result = &assignrole($udom,$uname,$uurl,'st',$end,$start,undef,
11363: $selfenroll,$context,$othdomby,$requester);
11364: if ($result ne 'ok') {
11365: if ($old_entry{$user} ne '') {
11366: $reply = &cput('classlist',\%old_entry,$cdom,$cnum);
11367: } else {
11368: $reply = &del('classlist',[$user],$cdom,$cnum);
11369: }
11370: }
11371: return $result;
11372: }
11373:
11374: sub format_name {
11375: my ($firstname,$middlename,$lastname,$generation,$first)=@_;
11376: my $name;
11377: if ($first ne 'lastname') {
11378: $name=$firstname.' '.$middlename.' '.$lastname.' '.$generation;
11379: } else {
11380: if ($lastname=~/\S/) {
11381: $name.= $lastname.' '.$generation.', '.$firstname.' '.$middlename;
11382: $name=~s/\s+,/,/;
11383: } else {
11384: $name.= $firstname.' '.$middlename.' '.$generation;
11385: }
11386: }
11387: $name=~s/^\s+//;
11388: $name=~s/\s+$//;
11389: $name=~s/\s+/ /g;
11390: return $name;
11391: }
11392:
11393: # ------------------------------------------------- Write to course preferences
11394:
11395: sub writecoursepref {
11396: my ($courseid,%prefs)=@_;
11397: $courseid=~s/^\///;
11398: $courseid=~s/\_/\//g;
11399: my ($cdomain,$cnum)=split(/\//,$courseid);
11400: my $chome=homeserver($cnum,$cdomain);
11401: if (($chome eq '') || ($chome eq 'no_host')) {
11402: return 'error: no such course';
11403: }
11404: my $cstring='';
11405: foreach my $pref (keys(%prefs)) {
11406: $cstring.=&escape($pref).'='.&escape($prefs{$pref}).'&';
11407: }
11408: $cstring=~s/\&$//;
11409: return reply('put:'.$cdomain.':'.$cnum.':environment:'.$cstring,$chome);
11410: }
11411:
11412: # ---------------------------------------------------------- Make/modify course
11413:
11414: sub createcourse {
11415: my ($udom,$description,$url,$course_server,$nonstandard,$inst_code,
11416: $course_owner,$crstype,$cnum,$context,$category,$callercontext)=@_;
11417: $url=&declutter($url);
11418: my $cid='';
11419: if ($context eq 'requestcourses') {
11420: my $can_create = 0;
11421: my ($ownername,$ownerdom) = split(':',$course_owner);
11422: if ($udom eq $ownerdom) {
11423: my $reload;
11424: if (($callercontext eq 'auto') &&
11425: ($ownerdom eq $env{'user.domain'}) && ($ownername eq $env{'user.name'})) {
11426: $reload = 'reload';
11427: }
11428: if (&usertools_access($ownername,$ownerdom,$category,$reload,
11429: $context)) {
11430: $can_create = 1;
11431: }
11432: } else {
11433: my %userenv = &userenvironment($ownerdom,$ownername,'reqcrsotherdom.'.
11434: $category);
11435: if ($userenv{'reqcrsotherdom.'.$category} ne '') {
11436: my @curr = split(',',$userenv{'reqcrsotherdom.'.$category});
11437: if (@curr > 0) {
11438: my @options = qw(approval validate autolimit);
11439: my $optregex = join('|',@options);
11440: if (grep(/^\Q$udom\E:($optregex)(=?\d*)$/,@curr)) {
11441: $can_create = 1;
11442: }
11443: }
11444: }
11445: }
11446: if ($can_create) {
11447: unless ($ownername eq $env{'user.name'} && $ownerdom eq $env{'user.domain'}) {
11448: unless (&allowed('ccc',$udom)) {
11449: return 'refused';
11450: }
11451: }
11452: } else {
11453: return 'refused';
11454: }
11455: } elsif (!&allowed('ccc',$udom)) {
11456: return 'refused';
11457: }
11458: # --------------------------------------------------------------- Get Unique ID
11459: my $uname;
11460: if ($cnum =~ /^$match_courseid$/) {
11461: my $chome=&homeserver($cnum,$udom,'true');
11462: if (($chome eq '') || ($chome eq 'no_host')) {
11463: $uname = $cnum;
11464: } else {
11465: $uname = &generate_coursenum($udom,$crstype);
11466: }
11467: } else {
11468: $uname = &generate_coursenum($udom,$crstype);
11469: }
11470: return $uname if ($uname =~ /^error/);
11471: # -------------------------------------------------- Check supplied server name
11472: if (!defined($course_server)) {
11473: if (defined(&domain($udom,'primary'))) {
11474: $course_server = &domain($udom,'primary');
11475: } else {
11476: $course_server = $env{'user.home'};
11477: }
11478: }
11479: my %host_servers =
11480: &get_servers($udom,'library');
11481: unless ($host_servers{$course_server}) {
11482: return 'error: invalid home server for course: '.$course_server;
11483: }
11484: # ------------------------------------------------------------- Make the course
11485: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':none::',
11486: $course_server);
11487: unless ($reply eq 'ok') { return 'error: '.$reply; }
11488: my $uhome=&homeserver($uname,$udom,'true');
11489: if (($uhome eq '') || ($uhome eq 'no_host')) {
11490: return 'error: no such course';
11491: }
11492: # ----------------------------------------------------------------- Course made
11493: # log existence
11494: my $now = time;
11495: my $newcourse = {
11496: $udom.'_'.$uname => {
11497: description => $description,
11498: inst_code => $inst_code,
11499: owner => $course_owner,
11500: type => $crstype,
11501: creator => $env{'user.name'}.':'.
11502: $env{'user.domain'},
11503: created => $now,
11504: context => $context,
11505: },
11506: };
11507: &courseidput($udom,$newcourse,$uhome,'notime');
11508: # set toplevel url
11509: my $topurl=$url;
11510: unless ($nonstandard) {
11511: # ------------------------------------------ For standard courses, make top url
11512: my $mapurl=&clutter($url);
11513: if ($mapurl eq '/res/') { $mapurl=''; }
11514: $env{'form.initmap'}=(<<ENDINITMAP);
11515: <map>
11516: <resource id="1" type="start"></resource>
11517: <resource id="2" src="$mapurl"></resource>
11518: <resource id="3" type="finish"></resource>
11519: <link index="1" from="1" to="2"></link>
11520: <link index="2" from="2" to="3"></link>
11521: </map>
11522: ENDINITMAP
11523: $topurl=&declutter(
11524: &finishuserfileupload($uname,$udom,'initmap','default.sequence')
11525: );
11526: }
11527: # ----------------------------------------------------------- Write preferences
11528: &writecoursepref($udom.'_'.$uname,
11529: ('description' => $description,
11530: 'url' => $topurl,
11531: 'internal.creator' => $env{'user.name'}.':'.
11532: $env{'user.domain'},
11533: 'internal.created' => $now,
11534: 'internal.creationcontext' => $context)
11535: );
11536: return '/'.$udom.'/'.$uname;
11537: }
11538:
11539: # ------------------------------------------------------------------- Create ID
11540: sub generate_coursenum {
11541: my ($udom,$crstype) = @_;
11542: my $domdesc = &domain($udom);
11543: return 'error: invalid domain' if ($domdesc eq '');
11544: my $first;
11545: if ($crstype eq 'Community') {
11546: $first = '0';
11547: } else {
11548: $first = int(1+rand(9));
11549: }
11550: my $uname=$first.
11551: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
11552: substr($$.time,0,5).unpack("H8",pack("I32",time)).
11553: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
11554: # ----------------------------------------------- Make sure that does not exist
11555: my $uhome=&homeserver($uname,$udom,'true');
11556: unless (($uhome eq '') || ($uhome eq 'no_host')) {
11557: if ($crstype eq 'Community') {
11558: $first = '0';
11559: } else {
11560: $first = int(1+rand(9));
11561: }
11562: $uname=$first.
11563: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
11564: substr($$.time,0,5).unpack("H8",pack("I32",time)).
11565: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
11566: $uhome=&homeserver($uname,$udom,'true');
11567: unless (($uhome eq '') || ($uhome eq 'no_host')) {
11568: return 'error: unable to generate unique course-ID';
11569: }
11570: }
11571: return $uname;
11572: }
11573:
11574: sub is_course {
11575: my ($cdom, $cnum) = scalar(@_) == 1 ?
11576: ($_[0] =~ /^($match_domain)_($match_courseid)$/) : @_;
11577:
11578: return unless (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/));
11579: my $uhome=&homeserver($cnum,$cdom);
11580: my $iscourse;
11581: if (grep { $_ eq $uhome } current_machine_ids()) {
11582: $iscourse = &LONCAPA::Lond::is_course($cdom,$cnum);
11583: } else {
11584: my $hashid = $cdom.':'.$cnum;
11585: ($iscourse,my $cached) = &is_cached_new('iscourse',$hashid);
11586: unless (defined($cached)) {
11587: my %courses = &courseiddump($cdom, '.', 1, '.', '.',
11588: $cnum,undef,undef,'.');
11589: $iscourse = 0;
11590: if (exists($courses{$cdom.'_'.$cnum})) {
11591: $iscourse = 1;
11592: }
11593: &do_cache_new('iscourse',$hashid,$iscourse,3600);
11594: }
11595: }
11596: return unless ($iscourse);
11597: return wantarray ? ($cdom, $cnum) : $cdom.'_'.$cnum;
11598: }
11599:
11600: sub store_userdata {
11601: my ($storehash,$datakey,$namespace,$udom,$uname) = @_;
11602: my $result;
11603: if ($datakey ne '') {
11604: if (ref($storehash) eq 'HASH') {
11605: if ($udom eq '' || $uname eq '') {
11606: $udom = $env{'user.domain'};
11607: $uname = $env{'user.name'};
11608: }
11609: my $uhome=&homeserver($uname,$udom);
11610: if (($uhome eq '') || ($uhome eq 'no_host')) {
11611: $result = 'error: no_host';
11612: } else {
11613: $storehash->{'ip'} = &get_requestor_ip();
11614: $storehash->{'host'} = $perlvar{'lonHostID'};
11615:
11616: my $namevalue='';
11617: foreach my $key (keys(%{$storehash})) {
11618: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
11619: }
11620: $namevalue=~s/\&$//;
11621: unless ($namespace eq 'courserequests') {
11622: $datakey = &escape($datakey);
11623: }
11624: $result = &reply("store:$udom:$uname:$namespace:$datakey:".
11625: $namevalue,$uhome);
11626: }
11627: } else {
11628: $result = 'error: data to store was not a hash reference';
11629: }
11630: } else {
11631: $result= 'error: invalid requestkey';
11632: }
11633: return $result;
11634: }
11635:
11636: # ---------------------------------------------------------- Assign Custom Role
11637:
11638: sub assigncustomrole {
11639: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start,$deleteflag,
11640: $selfenroll,$context,$othdomby,$requester)=@_;
11641: return &assignrole($udom,$uname,$url,'cr/'.$rdom.'/'.$rnam.'/'.$rolename,
11642: $end,$start,$deleteflag,$selfenroll,$context,$othdomby,
11643: $requester);
11644: }
11645:
11646: # ----------------------------------------------------------------- Revoke Role
11647:
11648: sub revokerole {
11649: my ($udom,$uname,$url,$role,$deleteflag,$selfenroll,$context)=@_;
11650: my $now=time;
11651: return &assignrole($udom,$uname,$url,$role,$now,undef,$deleteflag,$selfenroll,$context);
11652: }
11653:
11654: # ---------------------------------------------------------- Revoke Custom Role
11655:
11656: sub revokecustomrole {
11657: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$deleteflag,$selfenroll,$context)=@_;
11658: my $now=time;
11659: return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now,
11660: $deleteflag,$selfenroll,$context);
11661: }
11662:
11663: # ------------------------------------------------------------ Disk usage
11664: sub diskusage {
11665: my ($udom,$uname,$directorypath,$getpropath)=@_;
11666: $directorypath =~ s/\/$//;
11667: my $listing=&reply('du2:'.&escape($directorypath).':'
11668: .&escape($getpropath).':'.&escape($uname).':'
11669: .&escape($udom),homeserver($uname,$udom));
11670: if ($listing eq 'unknown_cmd') {
11671: if ($getpropath) {
11672: $directorypath = &propath($udom,$uname).'/'.$directorypath;
11673: }
11674: $listing = &reply('du:'.$directorypath,homeserver($uname,$udom));
11675: }
11676: return $listing;
11677: }
11678:
11679: sub is_locked {
11680: my ($file_name, $domain, $user, $which) = @_;
11681: my @check;
11682: my $is_locked;
11683: push (@check,$file_name);
11684: my %locked = &get('file_permissions',\@check,
11685: $env{'user.domain'},$env{'user.name'});
11686: my ($tmp)=keys(%locked);
11687: if ($tmp=~/^error:/) { undef(%locked); }
11688:
11689: if (ref($locked{$file_name}) eq 'ARRAY') {
11690: $is_locked = 'false';
11691: foreach my $entry (@{$locked{$file_name}}) {
11692: if (ref($entry) eq 'ARRAY') {
11693: $is_locked = 'true';
11694: if (ref($which) eq 'ARRAY') {
11695: push(@{$which},$entry);
11696: } else {
11697: last;
11698: }
11699: }
11700: }
11701: } else {
11702: $is_locked = 'false';
11703: }
11704: return $is_locked;
11705: }
11706:
11707: sub declutter_portfile {
11708: my ($file) = @_;
11709: $file =~ s{^(/portfolio/|portfolio/)}{/};
11710: return $file;
11711: }
11712:
11713: # ------------------------------------------------------------- Mark as Read Only
11714:
11715: sub mark_as_readonly {
11716: my ($domain,$user,$files,$what) = @_;
11717: my %current_permissions = &dump('file_permissions',$domain,$user);
11718: my ($tmp)=keys(%current_permissions);
11719: if ($tmp=~/^error:/) { undef(%current_permissions); }
11720: foreach my $file (@{$files}) {
11721: $file = &declutter_portfile($file);
11722: push(@{$current_permissions{$file}},$what);
11723: }
11724: &put('file_permissions',\%current_permissions,$domain,$user);
11725: return;
11726: }
11727:
11728: # ------------------------------------------------------------Save Selected Files
11729:
11730: sub save_selected_files {
11731: my ($user, $path, @files) = @_;
11732: my $filename = $user."savedfiles";
11733: my @other_files = &files_not_in_path($user, $path);
11734: open (OUT,'>',LONCAPA::tempdir().$filename);
11735: foreach my $file (@files) {
11736: print (OUT $env{'form.currentpath'}.$file."\n");
11737: }
11738: foreach my $file (@other_files) {
11739: print (OUT $file."\n");
11740: }
11741: close (OUT);
11742: return 'ok';
11743: }
11744:
11745: sub clear_selected_files {
11746: my ($user) = @_;
11747: my $filename = $user."savedfiles";
11748: open (OUT,'>',LONCAPA::tempdir().$filename);
11749: print (OUT undef);
11750: close (OUT);
11751: return ("ok");
11752: }
11753:
11754: sub files_in_path {
11755: my ($user, $path) = @_;
11756: my $filename = $user."savedfiles";
11757: my %return_files;
11758: open (IN,'<',LONCAPA::tempdir().$filename);
11759: while (my $line_in = <IN>) {
11760: chomp ($line_in);
11761: my @paths_and_file = split (m!/!, $line_in);
11762: my $file_part = pop (@paths_and_file);
11763: my $path_part = join ('/', @paths_and_file);
11764: $path_part.='/';
11765: my $path_and_file = $path_part.$file_part;
11766: if ($path_part eq $path) {
11767: $return_files{$file_part}= 'selected';
11768: }
11769: }
11770: close (IN);
11771: return (\%return_files);
11772: }
11773:
11774: # called in portfolio select mode, to show files selected NOT in current directory
11775: sub files_not_in_path {
11776: my ($user, $path) = @_;
11777: my $filename = $user."savedfiles";
11778: my @return_files;
11779: my $path_part;
11780: open(IN, '<',LONCAPA::tempdir().$filename);
11781: while (my $line = <IN>) {
11782: #ok, I know it's clunky, but I want it to work
11783: my @paths_and_file = split(m|/|, $line);
11784: my $file_part = pop(@paths_and_file);
11785: chomp($file_part);
11786: my $path_part = join('/', @paths_and_file);
11787: $path_part .= '/';
11788: my $path_and_file = $path_part.$file_part;
11789: if ($path_part ne $path) {
11790: push(@return_files, ($path_and_file));
11791: }
11792: }
11793: close(OUT);
11794: return (@return_files);
11795: }
11796:
11797: #------------------------------Submitted/Handedback Portfolio Files Versioning
11798:
11799: sub portfiles_versioning {
11800: my ($symb,$domain,$stu_name,$portfiles,$versioned_portfiles) = @_;
11801: my $portfolio_root = '/userfiles/portfolio';
11802: return unless ((ref($portfiles) eq 'ARRAY') && (ref($versioned_portfiles) eq 'ARRAY'));
11803: foreach my $file (@{$portfiles}) {
11804: &unmark_as_readonly($domain,$stu_name,[$symb,$env{'request.course.id'}],$file);
11805: my ($directory,$answer_file) =($file =~ /^(.*?)([^\/]*)$/);
11806: my ($answer_name,$answer_ver,$answer_ext) = &file_name_version_ext($answer_file);
11807: my $getpropath = 1;
11808: my ($dir_list,$listerror) = &dirlist($portfolio_root.$directory,$domain,
11809: $stu_name,$getpropath);
11810: my $version = &get_next_version($answer_name,$answer_ext,$dir_list);
11811: my $new_answer =
11812: &version_selected_portfile($domain,$stu_name,$directory,$answer_file,$version);
11813: if ($new_answer ne 'problem getting file') {
11814: push(@{$versioned_portfiles}, $directory.$new_answer);
11815: &mark_as_readonly($domain,$stu_name,[$directory.$new_answer],
11816: [$symb,$env{'request.course.id'},'graded']);
11817: }
11818: }
11819: }
11820:
11821: sub get_next_version {
11822: my ($answer_name, $answer_ext, $dir_list) = @_;
11823: my $version;
11824: if (ref($dir_list) eq 'ARRAY') {
11825: foreach my $row (@{$dir_list}) {
11826: my ($file) = split(/\&/,$row,2);
11827: my ($file_name,$file_version,$file_ext) =
11828: &file_name_version_ext($file);
11829: if (($file_name eq $answer_name) &&
11830: ($file_ext eq $answer_ext)) {
11831: # gets here if filename and extension match,
11832: # regardless of version
11833: if ($file_version ne '') {
11834: # a versioned file is found so save it for later
11835: if ($file_version > $version) {
11836: $version = $file_version;
11837: }
11838: }
11839: }
11840: }
11841: }
11842: $version ++;
11843: return($version);
11844: }
11845:
11846: sub version_selected_portfile {
11847: my ($domain,$stu_name,$directory,$file_name,$version) = @_;
11848: my ($answer_name,$answer_ver,$answer_ext) =
11849: &file_name_version_ext($file_name);
11850: my $new_answer;
11851: $env{'form.copy'} =
11852: &getfile("/uploaded/$domain/$stu_name/portfolio$directory$file_name");
11853: if($env{'form.copy'} eq '-1') {
11854: $new_answer = 'problem getting file';
11855: } else {
11856: $new_answer = $answer_name.'.'.$version.'.'.$answer_ext;
11857: my $copy_result =
11858: &finishuserfileupload($stu_name,$domain,'copy',
11859: '/portfolio'.$directory.$new_answer);
11860: }
11861: undef($env{'form.copy'});
11862: return ($new_answer);
11863: }
11864:
11865: sub file_name_version_ext {
11866: my ($file)=@_;
11867: my @file_parts = split(/\./, $file);
11868: my ($name,$version,$ext);
11869: if (@file_parts > 1) {
11870: $ext=pop(@file_parts);
11871: if (@file_parts > 1 && $file_parts[-1] =~ /^\d+$/) {
11872: $version=pop(@file_parts);
11873: }
11874: $name=join('.',@file_parts);
11875: } else {
11876: $name=join('.',@file_parts);
11877: }
11878: return($name,$version,$ext);
11879: }
11880:
11881: #----------------------------------------------Get portfolio file permissions
11882:
11883: sub get_portfile_permissions {
11884: my ($domain,$user) = @_;
11885: my %current_permissions = &dump('file_permissions',$domain,$user);
11886: my ($tmp)=keys(%current_permissions);
11887: if ($tmp=~/^error:/) { undef(%current_permissions); }
11888: return \%current_permissions;
11889: }
11890:
11891: #---------------------------------------------Get portfolio file access controls
11892:
11893: sub get_access_controls {
11894: my ($current_permissions,$group,$file) = @_;
11895: my %access;
11896: my $real_file = $file;
11897: $file =~ s/\.meta$//;
11898: if (defined($file)) {
11899: if (ref($$current_permissions{$file."\0".'accesscontrol'}) eq 'HASH') {
11900: foreach my $control (keys(%{$$current_permissions{$file."\0".'accesscontrol'}})) {
11901: $access{$real_file}{$control} = $$current_permissions{$file."\0".$control};
11902: }
11903: }
11904: } else {
11905: foreach my $key (keys(%{$current_permissions})) {
11906: if ($key =~ /\0accesscontrol$/) {
11907: if (defined($group)) {
11908: if ($key !~ m-^\Q$group\E/-) {
11909: next;
11910: }
11911: }
11912: my ($fullpath) = split(/\0/,$key);
11913: if (ref($$current_permissions{$key}) eq 'HASH') {
11914: foreach my $control (keys(%{$$current_permissions{$key}})) {
11915: $access{$fullpath}{$control}=$$current_permissions{$fullpath."\0".$control};
11916: }
11917: }
11918: }
11919: }
11920: }
11921: return %access;
11922: }
11923:
11924: sub modify_access_controls {
11925: my ($file_name,$changes,$domain,$user)=@_;
11926: my ($outcome,$deloutcome);
11927: my %store_permissions;
11928: my %new_values;
11929: my %new_control;
11930: my %translation;
11931: my @deletions = ();
11932: my $now = time;
11933: if (exists($$changes{'activate'})) {
11934: if (ref($$changes{'activate'}) eq 'HASH') {
11935: my @newitems = sort(keys(%{$$changes{'activate'}}));
11936: my $numnew = scalar(@newitems);
11937: for (my $i=0; $i<$numnew; $i++) {
11938: my $newkey = $newitems[$i];
11939: my $newid = &Apache::loncommon::get_cgi_id();
11940: if ($newkey =~ /^\d+:/) {
11941: $newkey =~ s/^(\d+)/$newid/;
11942: $translation{$1} = $newid;
11943: } elsif ($newkey =~ /^\d+_\d+_\d+:/) {
11944: $newkey =~ s/^(\d+_\d+_\d+)/$newid/;
11945: $translation{$1} = $newid;
11946: }
11947: $new_values{$file_name."\0".$newkey} =
11948: $$changes{'activate'}{$newitems[$i]};
11949: $new_control{$newkey} = $now;
11950: }
11951: }
11952: }
11953: my %todelete;
11954: my %changed_items;
11955: foreach my $action ('delete','update') {
11956: if (exists($$changes{$action})) {
11957: if (ref($$changes{$action}) eq 'HASH') {
11958: foreach my $key (keys(%{$$changes{$action}})) {
11959: my ($itemnum) = ($key =~ /^([^:]+):/);
11960: if ($action eq 'delete') {
11961: $todelete{$itemnum} = 1;
11962: } else {
11963: $changed_items{$itemnum} = $key;
11964: }
11965: }
11966: }
11967: }
11968: }
11969: # get lock on access controls for file.
11970: my $lockhash = {
11971: $file_name."\0".'locked_access_records' => $env{'user.name'}.
11972: ':'.$env{'user.domain'},
11973: };
11974: my $tries = 0;
11975: my $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
11976:
11977: while (($gotlock ne 'ok') && $tries < 10) {
11978: $tries ++;
11979: sleep(0.1);
11980: $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
11981: }
11982: if ($gotlock eq 'ok') {
11983: my %curr_permissions = &dump('file_permissions',$domain,$user,$file_name);
11984: my ($tmp)=keys(%curr_permissions);
11985: if ($tmp=~/^error:/) { undef(%curr_permissions); }
11986: if (exists($curr_permissions{$file_name."\0".'accesscontrol'})) {
11987: my $curr_controls = $curr_permissions{$file_name."\0".'accesscontrol'};
11988: if (ref($curr_controls) eq 'HASH') {
11989: foreach my $control_item (keys(%{$curr_controls})) {
11990: my ($itemnum) = ($control_item =~ /^([^:]+):/);
11991: if (defined($todelete{$itemnum})) {
11992: push(@deletions,$file_name."\0".$control_item);
11993: } else {
11994: if (defined($changed_items{$itemnum})) {
11995: $new_control{$changed_items{$itemnum}} = $now;
11996: push(@deletions,$file_name."\0".$control_item);
11997: $new_values{$file_name."\0".$changed_items{$itemnum}} = $$changes{'update'}{$changed_items{$itemnum}};
11998: } else {
11999: $new_control{$control_item} = $$curr_controls{$control_item};
12000: }
12001: }
12002: }
12003: }
12004: }
12005: my ($group);
12006: if (&is_course($domain,$user)) {
12007: ($group,my $file) = split(/\//,$file_name,2);
12008: }
12009: $deloutcome = &del('file_permissions',\@deletions,$domain,$user);
12010: $new_values{$file_name."\0".'accesscontrol'} = \%new_control;
12011: $outcome = &put('file_permissions',\%new_values,$domain,$user);
12012: # remove lock
12013: my @del_lock = ($file_name."\0".'locked_access_records');
12014: my $dellockoutcome = &del('file_permissions',\@del_lock,$domain,$user);
12015: my $sqlresult =
12016: &update_portfolio_table($user,$domain,$file_name,'portfolio_access',
12017: $group);
12018: } else {
12019: $outcome = "error: could not obtain lockfile\n";
12020: }
12021: return ($outcome,$deloutcome,\%new_values,\%translation);
12022: }
12023:
12024: sub make_public_indefinitely {
12025: my (@requrl) = @_;
12026: return &automated_portfile_access('public',\@requrl);
12027: }
12028:
12029: sub automated_portfile_access {
12030: my ($accesstype,$addsref,$delsref,$info) = @_;
12031: unless (($accesstype eq 'public') || ($accesstype eq 'ip')) {
12032: return 'invalid';
12033: }
12034: my %urls;
12035: if (ref($addsref) eq 'ARRAY') {
12036: foreach my $requrl (@{$addsref}) {
12037: if (&is_portfolio_url($requrl)) {
12038: unless (exists($urls{$requrl})) {
12039: $urls{$requrl} = 'add';
12040: }
12041: }
12042: }
12043: }
12044: if (ref($delsref) eq 'ARRAY') {
12045: foreach my $requrl (@{$delsref}) {
12046: if (&is_portfolio_url($requrl)) {
12047: unless (exists($urls{$requrl})) {
12048: $urls{$requrl} = 'delete';
12049: }
12050: }
12051: }
12052: }
12053: unless (keys(%urls)) {
12054: return 'invalid';
12055: }
12056: my $ip;
12057: if ($accesstype eq 'ip') {
12058: if (ref($info) eq 'HASH') {
12059: if ($info->{'ip'} ne '') {
12060: $ip = $info->{'ip'};
12061: }
12062: }
12063: if ($ip eq '') {
12064: return 'invalid';
12065: }
12066: }
12067: my $errors;
12068: my $now = time;
12069: my %current_perms;
12070: foreach my $requrl (sort(keys(%urls))) {
12071: my $action;
12072: if ($urls{$requrl} eq 'add') {
12073: $action = 'activate';
12074: } else {
12075: $action = 'none';
12076: }
12077: my $aclnum = 0;
12078: my (undef,$udom,$unum,$file_name,$group) =
12079: &parse_portfolio_url($requrl);
12080: unless (exists($current_perms{$unum.':'.$udom})) {
12081: $current_perms{$unum.':'.$udom} = &get_portfile_permissions($udom,$unum);
12082: }
12083: my %access_controls = &get_access_controls($current_perms{$unum.':'.$udom},
12084: $group,$file_name);
12085: foreach my $key (keys(%{$access_controls{$file_name}})) {
12086: my ($num,$scope,$end,$start) =
12087: ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
12088: if ($scope eq $accesstype) {
12089: if (($start <= $now) && ($end == 0)) {
12090: if ($accesstype eq 'ip') {
12091: if (ref($access_controls{$file_name}{$key}) eq 'HASH') {
12092: if (ref($access_controls{$file_name}{$key}{'ip'}) eq 'ARRAY') {
12093: if (grep(/^\Q$ip\E$/,@{$access_controls{$file_name}{$key}{'ip'}})) {
12094: if ($urls{$requrl} eq 'add') {
12095: $action = 'none';
12096: last;
12097: } else {
12098: $action = 'delete';
12099: $aclnum = $num;
12100: last;
12101: }
12102: }
12103: }
12104: }
12105: } elsif ($accesstype eq 'public') {
12106: if ($urls{$requrl} eq 'add') {
12107: $action = 'none';
12108: last;
12109: } else {
12110: $action = 'delete';
12111: $aclnum = $num;
12112: last;
12113: }
12114: }
12115: } elsif ($accesstype eq 'public') {
12116: $action = 'update';
12117: $aclnum = $num;
12118: last;
12119: }
12120: }
12121: }
12122: if ($action eq 'none') {
12123: next;
12124: } else {
12125: my %changes;
12126: my $newend = 0;
12127: my $newstart = $now;
12128: my $newkey = $aclnum.':'.$accesstype.'_'.$newend.'_'.$newstart;
12129: $changes{$action}{$newkey} = {
12130: type => $accesstype,
12131: time => {
12132: start => $newstart,
12133: end => $newend,
12134: },
12135: };
12136: if ($accesstype eq 'ip') {
12137: $changes{$action}{$newkey}{'ip'} = [$ip];
12138: }
12139: my ($outcome,$deloutcome,$new_values,$translation) =
12140: &modify_access_controls($file_name,\%changes,$udom,$unum);
12141: unless ($outcome eq 'ok') {
12142: $errors .= $outcome.' ';
12143: }
12144: }
12145: }
12146: if ($errors) {
12147: $errors =~ s/\s$//;
12148: return $errors;
12149: } else {
12150: return 'ok';
12151: }
12152: }
12153:
12154: #------------------------------------------------------Get Marked as Read Only
12155:
12156: sub get_marked_as_readonly {
12157: my ($domain,$user,$what,$group) = @_;
12158: my $current_permissions = &get_portfile_permissions($domain,$user);
12159: my @readonly_files;
12160: my $cmp1=$what;
12161: if (ref($what)) { $cmp1=join('',@{$what}) };
12162: while (my ($file_name,$value) = each(%{$current_permissions})) {
12163: if (defined($group)) {
12164: if ($file_name !~ m-^\Q$group\E/-) {
12165: next;
12166: }
12167: }
12168: if (ref($value) eq "ARRAY"){
12169: foreach my $stored_what (@{$value}) {
12170: my $cmp2=$stored_what;
12171: if (ref($stored_what) eq 'ARRAY') {
12172: $cmp2=join('',@{$stored_what});
12173: }
12174: if ($cmp1 eq $cmp2) {
12175: push(@readonly_files, $file_name);
12176: last;
12177: } elsif (!defined($what)) {
12178: push(@readonly_files, $file_name);
12179: last;
12180: }
12181: }
12182: }
12183: }
12184: return @readonly_files;
12185: }
12186: #-----------------------------------------------------------Get Marked as Read Only Hash
12187:
12188: sub get_marked_as_readonly_hash {
12189: my ($current_permissions,$group,$what) = @_;
12190: my %readonly_files;
12191: while (my ($file_name,$value) = each(%{$current_permissions})) {
12192: if (defined($group)) {
12193: if ($file_name !~ m-^\Q$group\E/-) {
12194: next;
12195: }
12196: }
12197: if (ref($value) eq "ARRAY"){
12198: foreach my $stored_what (@{$value}) {
12199: if (ref($stored_what) eq 'ARRAY') {
12200: foreach my $lock_descriptor(@{$stored_what}) {
12201: if ($lock_descriptor eq 'graded') {
12202: $readonly_files{$file_name} = 'graded';
12203: } elsif ($lock_descriptor eq 'handback') {
12204: $readonly_files{$file_name} = 'handback';
12205: } else {
12206: if (!exists($readonly_files{$file_name})) {
12207: $readonly_files{$file_name} = 'locked';
12208: }
12209: }
12210: }
12211: }
12212: }
12213: }
12214: }
12215: return %readonly_files;
12216: }
12217: # ------------------------------------------------------------ Unmark as Read Only
12218:
12219: sub unmark_as_readonly {
12220: # unmarks $file_name (if $file_name is defined), or all files locked by $what
12221: # for portfolio submissions, $what contains [$symb,$crsid]
12222: my ($domain,$user,$what,$file_name,$group) = @_;
12223: $file_name = &declutter_portfile($file_name);
12224: my $symb_crs = $what;
12225: if (ref($what)) { $symb_crs=join('',@$what); }
12226: my %current_permissions = &dump('file_permissions',$domain,$user,$group);
12227: my ($tmp)=keys(%current_permissions);
12228: if ($tmp=~/^error:/) { undef(%current_permissions); }
12229: my @readonly_files = &get_marked_as_readonly($domain,$user,$what,$group);
12230: foreach my $file (@readonly_files) {
12231: my $clean_file = &declutter_portfile($file);
12232: if (defined($file_name) && ($file_name ne $clean_file)) { next; }
12233: my $current_locks = $current_permissions{$file};
12234: my @new_locks;
12235: my @del_keys;
12236: if (ref($current_locks) eq "ARRAY"){
12237: foreach my $locker (@{$current_locks}) {
12238: my $compare=$locker;
12239: if (ref($locker) eq 'ARRAY') {
12240: $compare=join('',@{$locker});
12241: if ($compare ne $symb_crs) {
12242: push(@new_locks, $locker);
12243: }
12244: }
12245: }
12246: if (scalar(@new_locks) > 0) {
12247: $current_permissions{$file} = \@new_locks;
12248: } else {
12249: push(@del_keys, $file);
12250: &del('file_permissions',\@del_keys, $domain, $user);
12251: delete($current_permissions{$file});
12252: }
12253: }
12254: }
12255: &put('file_permissions',\%current_permissions,$domain,$user);
12256: return;
12257: }
12258:
12259: # ------------------------------------------------------------ Directory lister
12260:
12261: sub dirlist {
12262: my ($uri,$userdomain,$username,$getpropath,$getuserdir,$alternateRoot)=@_;
12263: $uri=~s/^\///;
12264: $uri=~s/\/$//;
12265: my ($udom, $uname);
12266: if ($getuserdir) {
12267: $udom = $userdomain;
12268: $uname = $username;
12269: } else {
12270: (undef,$udom,$uname)=split(/\//,$uri);
12271: if(defined($userdomain)) {
12272: $udom = $userdomain;
12273: }
12274: if(defined($username)) {
12275: $uname = $username;
12276: }
12277: }
12278: my ($dirRoot,$listing,@listing_results);
12279:
12280: $dirRoot = $perlvar{'lonDocRoot'};
12281: if (defined($getpropath)) {
12282: $dirRoot = &propath($udom,$uname);
12283: $dirRoot =~ s/\/$//;
12284: } elsif (defined($getuserdir)) {
12285: my $subdir=$uname.'__';
12286: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
12287: $dirRoot = $Apache::lonnet::perlvar{'lonUsersDir'}
12288: ."/$udom/$subdir/$uname";
12289: } elsif (defined($alternateRoot)) {
12290: $dirRoot = $alternateRoot;
12291: }
12292:
12293: if($udom) {
12294: if($uname) {
12295: my $uhome = &homeserver($uname,$udom);
12296: if ($uhome eq 'no_host') {
12297: return ([],'no_host');
12298: }
12299: $listing = &reply('ls3:'.&escape('/'.$uri).':'.$getpropath.':'
12300: .$getuserdir.':'.&escape($dirRoot)
12301: .':'.&escape($uname).':'.&escape($udom),$uhome);
12302: if ($listing eq 'unknown_cmd') {
12303: $listing = &reply('ls2:'.$dirRoot.'/'.$uri,$uhome);
12304: } else {
12305: @listing_results = map { &unescape($_); } split(/:/,$listing);
12306: }
12307: if ($listing eq 'unknown_cmd') {
12308: $listing = &reply('ls:'.$dirRoot.'/'.$uri,$uhome);
12309: @listing_results = split(/:/,$listing);
12310: } else {
12311: @listing_results = map { &unescape($_); } split(/:/,$listing);
12312: }
12313: if (($listing eq 'no_such_host') || ($listing eq 'con_lost') ||
12314: ($listing eq 'rejected') || ($listing eq 'refused') ||
12315: ($listing eq 'no_such_dir') || ($listing eq 'empty')) {
12316: return ([],$listing);
12317: } else {
12318: return (\@listing_results);
12319: }
12320: } elsif(!$alternateRoot) {
12321: my (%allusers,%listerror);
12322: my %servers = &get_servers($udom,'library');
12323: foreach my $tryserver (keys(%servers)) {
12324: $listing = &reply('ls3:'.&escape("/res/$udom").':::::'.
12325: &escape($udom),$tryserver);
12326: if ($listing eq 'unknown_cmd') {
12327: $listing = &reply('ls2:'.$perlvar{'lonDocRoot'}.'/res/'.
12328: $udom, $tryserver);
12329: } else {
12330: @listing_results = map { &unescape($_); } split(/:/,$listing);
12331: }
12332: if ($listing eq 'unknown_cmd') {
12333: $listing = &reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.
12334: $udom, $tryserver);
12335: @listing_results = split(/:/,$listing);
12336: } else {
12337: @listing_results =
12338: map { &unescape($_); } split(/:/,$listing);
12339: }
12340: if (($listing eq 'no_such_host') || ($listing eq 'con_lost') ||
12341: ($listing eq 'rejected') || ($listing eq 'refused') ||
12342: ($listing eq 'no_such_dir') || ($listing eq 'empty')) {
12343: $listerror{$tryserver} = $listing;
12344: } else {
12345: foreach my $line (@listing_results) {
12346: my ($entry) = split(/&/,$line,2);
12347: $allusers{$entry} = 1;
12348: }
12349: }
12350: }
12351: my @alluserslist=();
12352: foreach my $user (sort(keys(%allusers))) {
12353: push(@alluserslist,$user.'&user');
12354: }
12355:
12356: if (!%listerror) {
12357: # no errors
12358: return (\@alluserslist);
12359: } elsif (scalar(keys(%servers)) == 1) {
12360: # one library server, one error
12361: my ($key) = keys(%listerror);
12362: return (\@alluserslist, $listerror{$key});
12363: } elsif ( grep { $_ eq 'con_lost' } values(%listerror) ) {
12364: # con_lost indicates that we might miss data from at least one
12365: # library server
12366: return (\@alluserslist, 'con_lost');
12367: } else {
12368: # multiple library servers and no con_lost -> data should be
12369: # complete.
12370: return (\@alluserslist);
12371: }
12372:
12373: } else {
12374: return ([],'missing username');
12375: }
12376: } elsif(!defined($getpropath)) {
12377: my $path = $perlvar{'lonDocRoot'}.'/res/';
12378: my @all_domains = map { $path.$_.'/&domain'; } (sort(&all_domains()));
12379: return (\@all_domains);
12380: } else {
12381: return ([],'missing domain');
12382: }
12383: }
12384:
12385: # --------------------------------------------- GetFileTimestamp
12386: # This function utilizes dirlist and returns the date stamp for
12387: # when it was last modified. It will also return an error of -1
12388: # if an error occurs
12389:
12390: sub GetFileTimestamp {
12391: my ($studentDomain,$studentName,$filename,$getuserdir)=@_;
12392: $studentDomain = &LONCAPA::clean_domain($studentDomain);
12393: $studentName = &LONCAPA::clean_username($studentName);
12394: my ($fileref,$error) = &dirlist($filename,$studentDomain,$studentName,
12395: undef,$getuserdir);
12396: if (($error eq 'empty') || ($error eq 'no_such_dir')) {
12397: return -1;
12398: }
12399: if (ref($fileref) eq 'ARRAY') {
12400: my @stats = split('&',$fileref->[0]);
12401: # @stats contains first the filename, then the stat output
12402: return $stats[10]; # so this is 10 instead of 9.
12403: } else {
12404: return -1;
12405: }
12406: }
12407:
12408: sub stat_file {
12409: my ($uri) = @_;
12410: $uri = &clutter_with_no_wrapper($uri);
12411:
12412: my ($udom,$uname,$file);
12413: if ($uri =~ m-^/(uploaded|editupload)/-) {
12414: ($udom,$uname,$file) =
12415: ($uri =~ m-/(?:uploaded|editupload)/?($match_domain)/?($match_name)/?(.*)-);
12416: $file = 'userfiles/'.$file;
12417: }
12418: if ($uri =~ m-^/res/-) {
12419: ($udom,$uname) =
12420: ($uri =~ m-/(?:res)/?($match_domain)/?($match_username)/-);
12421: $file = $uri;
12422: }
12423:
12424: if (!$udom || !$uname || !$file) {
12425: # unable to handle the uri
12426: return ();
12427: }
12428: my $getpropath;
12429: if ($file =~ /^userfiles\//) {
12430: $getpropath = 1;
12431: }
12432: my ($listref,$error) = &dirlist($file,$udom,$uname,$getpropath);
12433: if (($error eq 'empty') || ($error eq 'no_such_dir')) {
12434: return ();
12435: } else {
12436: if (ref($listref) eq 'ARRAY') {
12437: my @stats = split('&',$listref->[0]);
12438: shift(@stats); #filename is first
12439: return @stats;
12440: }
12441: }
12442: return ();
12443: }
12444:
12445: # --------------------------------------------------------- recursedirs
12446: # Recursive function to traverse either a specific user's Authoring Space
12447: # or corresponding Published Resource Space, and populate the hash ref:
12448: # $dirhashref with URLs of all directories, and if $filehashref hash
12449: # ref arg is provided, the URLs of any files, excluding versioned, .meta,
12450: # or .rights files in resource space, and .meta, .save, .log, .bak and
12451: # .rights files in Authoring Space.
12452: #
12453: # Inputs:
12454: #
12455: # $is_home - true if current server is home server for user's space
12456: # $recurse - if true will also traverse subdirectories recursively
12457: # $include - reference to hash containing allowed file extensions. If provided,
12458: # files which do not have a matching extension will be ignored.
12459: # $exclude - reference to hash containing excluded file extensions. If provided,
12460: # files which have a matching extension will be ignored.
12461: # $nonemptydir - if true, will only populate $fileshashref hash entry for a particular
12462: # directory with first file found (with acceptable extension).
12463: # $addtopdir - if true, set $dirhashref->{'/'} = 1
12464: # $toppath - Top level directory (i.e., /res/$dom/$uname or /priv/$dom/$uname
12465: # $relpath - Current path (relative to top level).
12466: # $dirhashref - reference to hash to populate with URLs of directories (Required)
12467: # $filehashref - reference to hash to populate with URLs of files (Optional)
12468: #
12469: # Returns: nothing
12470: #
12471: # Side Effects: populates $dirhashref, and $filehashref (if provided).
12472: #
12473: # Currently used by interface/londocs.pm to create linked select boxes for
12474: # directory and filename to import a Course "Author" resource into a course, and
12475: # also to create linked select boxes for Authoring Space and Directory to choose
12476: # save location for creation of a new "standard" problem from the Course Editor.
12477: #
12478:
12479: sub recursedirs {
12480: my ($is_home,$recurse,$include,$exclude,$nonemptydir,$addtopdir,$toppath,$relpath,$dirhashref,$filehashref) = @_;
12481: return unless (ref($dirhashref) eq 'HASH');
12482: my $docroot = $perlvar{'lonDocRoot'};
12483: my $currpath = $docroot.$toppath;
12484: if ($relpath ne '') {
12485: $currpath .= "/$relpath";
12486: }
12487: my ($savefile,$checkinc,$checkexc);
12488: if (ref($filehashref)) {
12489: $savefile = 1;
12490: }
12491: if (ref($include) eq 'HASH') {
12492: $checkinc = 1;
12493: }
12494: if (ref($exclude) eq 'HASH') {
12495: $checkexc = 1;
12496: }
12497: if ($is_home) {
12498: if ((-e $currpath) && (opendir(my $dirh,$currpath))) {
12499: my $filecount = 0;
12500: foreach my $item (sort { lc($a) cmp lc($b) } grep(!/^\.+$/,readdir($dirh))) {
12501: next if ($item eq '');
12502: if (-d "$currpath/$item") {
12503: my $newpath;
12504: if ($relpath ne '') {
12505: $newpath = "$relpath/$item";
12506: } else {
12507: $newpath = $item;
12508: }
12509: $dirhashref->{&Apache::lonlocal::js_escape($newpath)} = 1;
12510: if ($recurse) {
12511: &recursedirs($is_home,$recurse,$include,$exclude,$nonemptydir,$addtopdir,$toppath,$newpath,$dirhashref,$filehashref);
12512: }
12513: } elsif (($savefile) || ($relpath eq '')) {
12514: next if ($nonemptydir && $filecount);
12515: if ($checkinc || $checkexc) {
12516: my ($extension) = ($item =~ /\.(\w+)$/);
12517: if ($checkinc) {
12518: next unless ($extension && $include->{$extension});
12519: }
12520: if ($checkexc) {
12521: next if ($extension && $exclude->{$extension});
12522: }
12523: }
12524: if (($relpath eq '') && (!exists($dirhashref->{'/'}))) {
12525: $dirhashref->{'/'} = 1;
12526: }
12527: if ($savefile) {
12528: if ($relpath eq '') {
12529: $filehashref->{'/'}{$item} = 1;
12530: } else {
12531: $filehashref->{&Apache::lonlocal::js_escape($relpath)}{$item} = 1;
12532: }
12533: }
12534: $filecount ++;
12535: }
12536: }
12537: closedir($dirh);
12538: }
12539: } else {
12540: my ($dirlistref,$listerror) =
12541: &dirlist($toppath.$relpath);
12542: my @dir_lines;
12543: my $dirptr=16384;
12544: if (ref($dirlistref) eq 'ARRAY') {
12545: my $filecount = 0;
12546: foreach my $dir_line (sort
12547: {
12548: my ($afile)=split('&',$a,2);
12549: my ($bfile)=split('&',$b,2);
12550: return (lc($afile) cmp lc($bfile));
12551: } (@{$dirlistref})) {
12552: my ($item,$dom,undef,$testdir,undef,undef,undef,undef,$size,undef,$mtime,undef,undef,undef,$obs,undef) =
12553: split(/\&/,$dir_line,16);
12554: $item =~ s/\s+$//;
12555: next if (($item =~ /^\.\.?$/) || ($obs));
12556: if ($dirptr&$testdir) {
12557: my $newpath;
12558: if ($relpath) {
12559: $newpath = "$relpath/$item";
12560: } else {
12561: $newpath = $item;
12562: }
12563: $dirhashref->{&Apache::lonlocal::js_escape($newpath)} = 1;
12564: if ($recurse) {
12565: &recursedirs($is_home,$recurse,$include,$exclude,$nonemptydir,$addtopdir,$toppath,$newpath,$dirhashref,$filehashref);
12566: }
12567: } elsif (($savefile) || ($relpath eq '')) {
12568: next if ($nonemptydir && $filecount);
12569: if ($checkinc || $checkexc) {
12570: my $extension;
12571: if ($checkinc) {
12572: next unless ($extension && $include->{$extension});
12573: }
12574: if ($checkexc) {
12575: next if ($extension && $exclude->{$extension});
12576: }
12577: }
12578: if (($relpath eq '') && (!exists($dirhashref->{'/'}))) {
12579: $dirhashref->{'/'} = 1;
12580: }
12581: if ($savefile) {
12582: if ($relpath eq '') {
12583: $filehashref->{'/'}{$item} = 1;
12584: } else {
12585: $filehashref->{&Apache::lonlocal::js_escape($relpath)}{$item} = 1;
12586: }
12587: }
12588: $filecount ++;
12589: }
12590: }
12591: }
12592: }
12593: if ($addtopdir) {
12594: if (($relpath eq '') && (!exists($dirhashref->{'/'}))) {
12595: $dirhashref->{'/'} = 1;
12596: }
12597: }
12598: return;
12599: }
12600:
12601: sub priv_exclude {
12602: return {
12603: meta => 1,
12604: save => 1,
12605: log => 1,
12606: bak => 1,
12607: rights => 1,
12608: DS_Store => 1,
12609: };
12610: }
12611:
12612: # -------------------------------------------------------- Value of a Condition
12613:
12614: # gets the value of a specific preevaluated condition
12615: # stored in the string $env{user.state.<cid>}
12616: # or looks up a condition reference in the bighash and if if hasn't
12617: # already been evaluated recurses into docondval to get the value of
12618: # the condition, then memoizing it to
12619: # $env{user.state.<cid>.<condition>}
12620: sub directcondval {
12621: my $number=shift;
12622: if (!defined($env{'user.state.'.$env{'request.course.id'}})) {
12623: &Apache::lonuserstate::evalstate();
12624: }
12625: if (exists($env{'user.state.'.$env{'request.course.id'}.".$number"})) {
12626: return $env{'user.state.'.$env{'request.course.id'}.".$number"};
12627: } elsif ($number =~ /^_/) {
12628: my $sub_condition;
12629: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
12630: &GDBM_READER(),0640)) {
12631: $sub_condition=$bighash{'conditions'.$number};
12632: untie(%bighash);
12633: }
12634: my $value = &docondval($sub_condition);
12635: &appenv({'user.state.'.$env{'request.course.id'}.".$number" => $value});
12636: return $value;
12637: }
12638: if ($env{'user.state.'.$env{'request.course.id'}}) {
12639: return substr($env{'user.state.'.$env{'request.course.id'}},$number,1);
12640: } else {
12641: return 2;
12642: }
12643: }
12644:
12645: # get the collection of conditions for this resource
12646: sub condval {
12647: my $condidx=shift;
12648: my $allpathcond='';
12649: foreach my $cond (split(/\|/,$condidx)) {
12650: if (defined($env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond})) {
12651: $allpathcond.=
12652: '('.$env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond}.')|';
12653: }
12654: }
12655: $allpathcond=~s/\|$//;
12656: return &docondval($allpathcond);
12657: }
12658:
12659: #evaluates an expression of conditions
12660: sub docondval {
12661: my ($allpathcond) = @_;
12662: my $result=0;
12663: if ($env{'request.course.id'}
12664: && defined($allpathcond)) {
12665: my $operand='|';
12666: my @stack;
12667: foreach my $chunk ($allpathcond=~/(\d+|_\d+\.\d+|\(|\)|\&|\|)/g) {
12668: if ($chunk eq '(') {
12669: push @stack,($operand,$result);
12670: } elsif ($chunk eq ')') {
12671: my $before=pop @stack;
12672: if (pop @stack eq '&') {
12673: $result=$result>$before?$before:$result;
12674: } else {
12675: $result=$result>$before?$result:$before;
12676: }
12677: } elsif (($chunk eq '&') || ($chunk eq '|')) {
12678: $operand=$chunk;
12679: } else {
12680: my $new=directcondval($chunk);
12681: if ($operand eq '&') {
12682: $result=$result>$new?$new:$result;
12683: } else {
12684: $result=$result>$new?$result:$new;
12685: }
12686: }
12687: }
12688: }
12689: return $result;
12690: }
12691:
12692: # ---------------------------------------------------- Devalidate courseresdata
12693:
12694: sub devalidatecourseresdata {
12695: my ($coursenum,$coursedomain)=@_;
12696: my $hashid=$coursenum.':'.$coursedomain;
12697: &devalidate_cache_new('courseres',$hashid);
12698: }
12699:
12700:
12701: # --------------------------------------------------- Course Resourcedata Query
12702: #
12703: # Parameters:
12704: # $coursenum - Number of the course.
12705: # $coursedomain - Domain at which the course was created.
12706: # Returns:
12707: # A hash of the course parameters along (I think) with timestamps
12708: # and version info.
12709:
12710: sub get_courseresdata {
12711: my ($coursenum,$coursedomain)=@_;
12712: my $coursehom=&homeserver($coursenum,$coursedomain);
12713: my $hashid=$coursenum.':'.$coursedomain;
12714: my ($result,$cached)=&is_cached_new('courseres',$hashid);
12715: my %dumpreply;
12716: unless (defined($cached)) {
12717: %dumpreply=&dump('resourcedata',$coursedomain,$coursenum);
12718: $result=\%dumpreply;
12719: my ($tmp) = keys(%dumpreply);
12720: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
12721: &do_cache_new('courseres',$hashid,$result,600);
12722: } elsif ($tmp =~ /^(con_lost|no_such_host)/) {
12723: return $tmp;
12724: } elsif ($tmp =~ /^(error)/) {
12725: $result=undef;
12726: &do_cache_new('courseres',$hashid,$result,600);
12727: }
12728: }
12729: return $result;
12730: }
12731:
12732: sub devalidateuserresdata {
12733: my ($uname,$udom)=@_;
12734: my $hashid="$udom:$uname";
12735: &devalidate_cache_new('userres',$hashid);
12736: }
12737:
12738: sub get_userresdata {
12739: my ($uname,$udom)=@_;
12740: #most student don\'t have any data set, check if there is some data
12741: if (&EXT_cache_status($udom,$uname)) { return undef; }
12742:
12743: my $hashid="$udom:$uname";
12744: my ($result,$cached)=&is_cached_new('userres',$hashid);
12745: if (!defined($cached)) {
12746: my %resourcedata=&dump('resourcedata',$udom,$uname);
12747: $result=\%resourcedata;
12748: &do_cache_new('userres',$hashid,$result,600);
12749: }
12750: my ($tmp)=keys(%$result);
12751: if (($tmp!~/^error\:/) && ($tmp!~/^con_lost/)) {
12752: return $result;
12753: }
12754: #error 2 occurs when the .db doesn't exist
12755: if ($tmp!~/error: 2 /) {
12756: if ((!defined($cached)) || ($tmp ne 'con_lost')) {
12757: &logthis("<font color=\"blue\">WARNING:".
12758: " Trying to get resource data for ".
12759: $uname." at ".$udom.": ".
12760: $tmp."</font>");
12761: }
12762: } elsif ($tmp=~/error: 2 /) {
12763: #&EXT_cache_set($udom,$uname);
12764: &do_cache_new('userres',$hashid,undef,600);
12765: undef($tmp); # not really an error so don't send it back
12766: }
12767: return $tmp;
12768: }
12769: #----------------------------------------------- resdata - return resource data
12770: # Purpose:
12771: # Return resource data for either users or for a course.
12772: # Parameters:
12773: # $name - Course/user name.
12774: # $domain - Name of the domain the user/course is registered on.
12775: # $type - Type of thing $name is (must be 'course' or 'user')
12776: # $mapp - decluttered URL of enclosing map
12777: # $recursed - Ref to scalar -- set to 1, if nested maps have been recursed.
12778: # $recurseup - Ref to array of map URLs, starting with map containing
12779: # $mapp up through hierarchy of nested maps to top level map.
12780: # $courseid - CourseID (first part of param identifier).
12781: # $modifier - Middle part of param identifier.
12782: # $what - Last part of param identifier.
12783: # @which - Array of names of resources desired.
12784: # Returns:
12785: # The value of the first reasource in @which that is found in the
12786: # resource hash.
12787: # Exceptional Conditions:
12788: # If the $type passed in is not valid (not the string 'course' or
12789: # 'user', an undefined reference is returned.
12790: # If none of the resources are found, an undef is returned
12791: sub resdata {
12792: my ($name,$domain,$type,$mapp,$recursed,$recurseup,$courseid,
12793: $modifier,$what,@which)=@_;
12794: my $result;
12795: if ($type eq 'course') {
12796: $result=&get_courseresdata($name,$domain);
12797: } elsif ($type eq 'user') {
12798: $result=&get_userresdata($name,$domain);
12799: }
12800: if (!ref($result)) { return $result; }
12801: foreach my $item (@which) {
12802: if ($item->[1] eq 'course') {
12803: if ((ref($recurseup) eq 'ARRAY') && (ref($recursed) eq 'SCALAR')) {
12804: unless ($$recursed) {
12805: @{$recurseup} = &get_map_hierarchy($mapp,$courseid);
12806: $$recursed = 1;
12807: }
12808: foreach my $item (@${recurseup}) {
12809: my $norecursechk=$courseid.$modifier.$item.'___(all).'.$what;
12810: last if (defined($result->{$norecursechk}));
12811: my $recursechk=$courseid.$modifier.$item.'___(rec).'.$what;
12812: if (defined($result->{$recursechk})) { return [$result->{$recursechk},'map']; }
12813: }
12814: }
12815: }
12816: if (defined($result->{$item->[0]})) {
12817: return [$result->{$item->[0]},$item->[1]];
12818: }
12819: }
12820: return undef;
12821: }
12822:
12823: sub get_domain_lti {
12824: my ($cdom,$context) = @_;
12825: my ($name,$cachename,%lti);
12826: if ($context eq 'consumer') {
12827: $name = 'ltitools';
12828: } elsif ($context eq 'provider') {
12829: $name = 'lti';
12830: } elsif ($context eq 'linkprot') {
12831: $name = 'ltisec';
12832: } else {
12833: return %lti;
12834: }
12835: if ($context eq 'linkprot') {
12836: $cachename = $context;
12837: } else {
12838: $cachename = $name;
12839: }
12840: my ($result,$cached)=&is_cached_new($cachename,$cdom);
12841: if (defined($cached)) {
12842: if (ref($result) eq 'HASH') {
12843: %lti = %{$result};
12844: }
12845: } else {
12846: my %domconfig = &get_dom('configuration',[$name],$cdom);
12847: if (ref($domconfig{$name}) eq 'HASH') {
12848: if ($context eq 'linkprot') {
12849: if (ref($domconfig{$name}{'linkprot'}) eq 'HASH') {
12850: %lti = %{$domconfig{$name}{'linkprot'}};
12851: }
12852: } else {
12853: %lti = %{$domconfig{$name}};
12854: }
12855: }
12856: my $cachetime = 24*60*60;
12857: &do_cache_new($cachename,$cdom,\%lti,$cachetime);
12858: }
12859: return %lti;
12860: }
12861:
12862: sub get_course_lti {
12863: my ($cnum,$cdom,$context) = @_;
12864: my ($name,$cachename,%lti);
12865: if ($context eq 'consumer') {
12866: $name = 'ltitools';
12867: $cachename = 'courseltitools';
12868: } elsif ($context eq 'provider') {
12869: $name = 'lti';
12870: $cachename = 'courselti';
12871: } else {
12872: return %lti;
12873: }
12874: my $hashid=$cdom.'_'.$cnum;
12875: my ($result,$cached)=&is_cached_new($cachename,$hashid);
12876: if (defined($cached)) {
12877: if (ref($result) eq 'HASH') {
12878: %lti = %{$result};
12879: }
12880: } else {
12881: %lti = &dump($name,$cdom,$cnum,undef,undef,undef,1);
12882: my $cachetime = 24*60*60;
12883: &do_cache_new($cachename,$hashid,\%lti,$cachetime);
12884: }
12885: return %lti;
12886: }
12887:
12888: sub courselti_itemid {
12889: my ($cnum,$cdom,$url,$method,$params,$context) = @_;
12890: my ($chome,$itemid);
12891: $chome = &homeserver($cnum,$cdom);
12892: return if ($chome eq 'no_host');
12893: if (ref($params) eq 'HASH') {
12894: my $rep;
12895: if (grep { $_ eq $chome } current_machine_ids()) {
12896: $rep = LONCAPA::Lond::crslti_itemid($cdom,$cnum,$url,$method,$params,$perlvar{'lonVersion'});
12897: } else {
12898: my $escurl = &escape($url);
12899: my $escmethod = &escape($method);
12900: my $items = &freeze_escape($params);
12901: $rep = &reply("encrypt:lti:$cdom:$cnum:$context:$escurl:$escmethod:$items",$chome);
12902: }
12903: unless (($rep=~/^(refused|rejected|error)/) || ($rep eq 'con_lost') ||
12904: ($rep eq 'unknown_cmd')) {
12905: $itemid = $rep;
12906: }
12907: }
12908: return $itemid;
12909: }
12910:
12911: sub domainlti_itemid {
12912: my ($cdom,$url,$method,$params,$context) = @_;
12913: my ($primary_id,$itemid);
12914: $primary_id = &domain($cdom,'primary');
12915: return if ($primary_id eq '');
12916: if (ref($params) eq 'HASH') {
12917: my $rep;
12918: if (grep { $_ eq $primary_id } current_machine_ids()) {
12919: $rep = LONCAPA::Lond::domlti_itemid($cdom,$context,$url,$method,$params,$perlvar{'lonVersion'});
12920: } else {
12921: my $cnum = '';
12922: my $escurl = &escape($url);
12923: my $escmethod = &escape($method);
12924: my $items = &freeze_escape($params);
12925: $rep = &reply("encrypt:lti:$cdom:$cnum:$context:$escurl:$escmethod:$items",$primary_id);
12926: }
12927: unless (($rep=~/^(refused|rejected|error)/) || ($rep eq 'con_lost') ||
12928: ($rep eq 'unknown_cmd')) {
12929: $itemid = $rep;
12930: }
12931: }
12932: return $itemid;
12933: }
12934:
12935: sub get_ltitools_id {
12936: my ($context,$cdom,$cnum,$title) = @_;
12937: my ($lockhash,$tries,$gotlock,$id,$error);
12938:
12939: # get lock on ltitools db
12940: $lockhash = {
12941: lock => $env{'user.name'}.
12942: ':'.$env{'user.domain'},
12943: };
12944: $tries = 0;
12945: if ($context eq 'domain') {
12946: $gotlock = &newput_dom('ltitools',$lockhash,$cdom);
12947: } else {
12948: $gotlock = &newput('ltitools',$lockhash,$cdom,$cnum);
12949: }
12950: while (($gotlock ne 'ok') && ($tries<10)) {
12951: $tries ++;
12952: sleep (0.1);
12953: if ($context eq 'domain') {
12954: $gotlock = &newput_dom('ltitools',$lockhash,$cdom);
12955: } else {
12956: $gotlock = &newput('ltitools',$lockhash,$cdom,$cnum);
12957: }
12958: }
12959: if ($gotlock eq 'ok') {
12960: my %currids;
12961: if ($context eq 'domain') {
12962: %currids = &dump_dom('ltitools',$cdom);
12963: } else {
12964: %currids = &dump('ltitools',$cdom,$cnum);
12965: }
12966: if ($currids{'lock'}) {
12967: delete($currids{'lock'});
12968: if (keys(%currids)) {
12969: my @curr = sort { $a <=> $b } keys(%currids);
12970: if ($curr[-1] =~ /^\d+$/) {
12971: $id = 1 + $curr[-1];
12972: }
12973: } else {
12974: $id = 1;
12975: }
12976: if ($id) {
12977: if ($context eq 'domain') {
12978: unless (&newput_dom('ltitools',{ $id => $title },$cdom) eq 'ok') {
12979: $error = 'nostore';
12980: }
12981: } else {
12982: unless (&newput('ltitools',{ $id => $title },$cdom,$cnum) eq 'ok') {
12983: $error = 'nostore';
12984: }
12985: }
12986: } else {
12987: $error = 'nonumber';
12988: }
12989: }
12990: my $dellockoutcome;
12991: if ($context eq 'domain') {
12992: $dellockoutcome = &del_dom('ltitools',['lock'],$cdom);
12993: } else {
12994: $dellockoutcome = &del('ltitools',['lock'],$cdom,$cnum);
12995: }
12996: } else {
12997: $error = 'nolock';
12998: }
12999: return ($id,$error);
13000: }
13001:
13002: sub count_supptools {
13003: my ($cnum,$cdom,$ignorecache,$reload)=@_;
13004: my $hashid=$cnum.':'.$cdom;
13005: my ($numexttools,$cached);
13006: unless ($ignorecache) {
13007: ($numexttools,$cached) = &is_cached_new('supptools',$hashid);
13008: }
13009: unless (defined($cached)) {
13010: my $chome=&homeserver($cnum,$cdom);
13011: $numexttools = 0;
13012: unless ($chome eq 'no_host') {
13013: my ($supplemental) = &Apache::loncommon::get_supplemental($cnum,$cdom,$reload);
13014: if (ref($supplemental) eq 'HASH') {
13015: if ((ref($supplemental->{'ids'}) eq 'HASH') && (ref($supplemental->{'hidden'}) eq 'HASH')) {
13016: foreach my $key (keys(%{$supplemental->{'ids'}})) {
13017: if ($key =~ m{^/adm/$cdom/$cnum/\d+/ext\.tool$}) {
13018: $numexttools ++;
13019: }
13020: }
13021: }
13022: }
13023: }
13024: &do_cache_new('supptools',$hashid,$numexttools,600);
13025: }
13026: return $numexttools;
13027: }
13028:
13029: sub has_unhidden_suppfiles {
13030: my ($cnum,$cdom,$ignorecache,$possdel)=@_;
13031: my $hashid=$cnum.':'.$cdom;
13032: my ($showsupp,$cached);
13033: unless ($ignorecache) {
13034: ($showsupp,$cached) = &is_cached_new('showsupp',$hashid);
13035: }
13036: unless (defined($cached)) {
13037: my $chome=&homeserver($cnum,$cdom);
13038: unless ($chome eq 'no_host') {
13039: my ($supplemental) = &Apache::loncommon::get_supplemental($cnum,$cdom,$ignorecache,$possdel);
13040: if (ref($supplemental) eq 'HASH') {
13041: if ((ref($supplemental->{'ids'}) eq 'HASH') && (ref($supplemental->{'hidden'}) eq 'HASH')) {
13042: foreach my $key (keys(%{$supplemental->{'ids'}})) {
13043: next if ($key =~ /\.sequence$/);
13044: if (ref($supplemental->{'ids'}->{$key}) eq 'ARRAY') {
13045: foreach my $id (@{$supplemental->{'ids'}->{$key}}) {
13046: unless ($supplemental->{'hidden'}->{$id}) {
13047: $showsupp = 1;
13048: last;
13049: }
13050: }
13051: }
13052: last if ($showsupp);
13053: }
13054: }
13055: }
13056: }
13057: &do_cache_new('showsupp',$hashid,$showsupp,600);
13058: }
13059: return $showsupp;
13060: }
13061:
13062: #
13063: # EXT resource caching routines
13064: #
13065:
13066: {
13067: # Cache (5 seconds) of map hierarchy for speedup of navmaps display
13068: #
13069: # The course for which we cache
13070: my $cachedmapkey='';
13071: # The cached recursive maps for this course
13072: my %cachedmaps=();
13073: # When this was last done
13074: my $cachedmaptime='';
13075:
13076: sub clear_EXT_cache_status {
13077: &delenv('cache.EXT.');
13078: }
13079:
13080: sub EXT_cache_status {
13081: my ($target_domain,$target_user) = @_;
13082: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
13083: if (exists($env{$cachename}) && ($env{$cachename}+600) > time) {
13084: # We know already the user has no data
13085: return 1;
13086: } else {
13087: return 0;
13088: }
13089: }
13090:
13091: sub EXT_cache_set {
13092: my ($target_domain,$target_user) = @_;
13093: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
13094: #&appenv({$cachename => time});
13095: }
13096:
13097: # --------------------------------------------------------- Value of a Variable
13098: sub EXT {
13099:
13100: my ($varname,$symbparm,$udom,$uname,$usection,$recurse,$cid,$recurseupref)=@_;
13101: unless ($varname) { return ''; }
13102: #get real user name/domain, courseid and symb
13103: my $courseid;
13104: my $publicuser;
13105: if ($symbparm) {
13106: $symbparm=&get_symb_from_alias($symbparm);
13107: }
13108: if (!($uname && $udom)) {
13109: (my $cursymb,$courseid,$udom,$uname,$publicuser)= &whichuser($symbparm);
13110: if (!$symbparm) { $symbparm=$cursymb; }
13111: } else {
13112: $courseid=$env{'request.course.id'};
13113: }
13114: my ($realm,$space,$qualifier,@therest)=split(/\./,$varname);
13115: my $rest;
13116: if (defined($therest[0])) {
13117: $rest=join('.',@therest);
13118: } else {
13119: $rest='';
13120: }
13121:
13122: my $qualifierrest=$qualifier;
13123: if ($rest) { $qualifierrest.='.'.$rest; }
13124: my $spacequalifierrest=$space;
13125: if ($qualifierrest) { $spacequalifierrest.='.'.$qualifierrest; }
13126: if ($realm eq 'user') {
13127: # --------------------------------------------------------------- user.resource
13128: if ($space eq 'resource') {
13129: if ( (defined($Apache::lonhomework::parsing_a_problem)
13130: || defined($Apache::lonhomework::parsing_a_task))
13131: &&
13132: ($symbparm eq &symbread()) ) {
13133: # if we are in the middle of processing the resource the
13134: # get the value we are planning on committing
13135: if (defined($Apache::lonhomework::results{$qualifierrest})) {
13136: return $Apache::lonhomework::results{$qualifierrest};
13137: } else {
13138: return $Apache::lonhomework::history{$qualifierrest};
13139: }
13140: } else {
13141: my %restored;
13142: if ($publicuser || $env{'request.state'} eq 'construct') {
13143: %restored=&tmprestore($symbparm,$courseid,$udom,$uname);
13144: } else {
13145: %restored=&restore($symbparm,$courseid,$udom,$uname);
13146: }
13147: return $restored{$qualifierrest};
13148: }
13149: # ----------------------------------------------------------------- user.access
13150: } elsif ($space eq 'access') {
13151: # FIXME - not supporting calls for a specific user
13152: return &allowed($qualifier,$rest);
13153: # ------------------------------------------ user.preferences, user.environment
13154: } elsif (($space eq 'preferences') || ($space eq 'environment')) {
13155: if (($uname eq $env{'user.name'}) &&
13156: ($udom eq $env{'user.domain'})) {
13157: return $env{join('.',('environment',$qualifierrest))};
13158: } else {
13159: my %returnhash;
13160: if (!$publicuser) {
13161: %returnhash=&userenvironment($udom,$uname,
13162: $qualifierrest);
13163: }
13164: return $returnhash{$qualifierrest};
13165: }
13166: # ----------------------------------------------------------------- user.course
13167: } elsif ($space eq 'course') {
13168: # FIXME - not supporting calls for a specific user
13169: return $env{join('.',('request.course',$qualifier))};
13170: # ------------------------------------------------------------------- user.role
13171: } elsif ($space eq 'role') {
13172: # FIXME - not supporting calls for a specific user
13173: my ($role,$where)=split(/\./,$env{'request.role'});
13174: if ($qualifier eq 'value') {
13175: return $role;
13176: } elsif ($qualifier eq 'extent') {
13177: return $where;
13178: }
13179: # ----------------------------------------------------------------- user.domain
13180: } elsif ($space eq 'domain') {
13181: return $udom;
13182: # ------------------------------------------------------------------- user.name
13183: } elsif ($space eq 'name') {
13184: return $uname;
13185: # ---------------------------------------------------- Any other user namespace
13186: } else {
13187: my %reply;
13188: if (!$publicuser) {
13189: %reply=&get($space,[$qualifierrest],$udom,$uname);
13190: }
13191: return $reply{$qualifierrest};
13192: }
13193: } elsif ($realm eq 'query') {
13194: # ---------------------------------------------- pull stuff out of query string
13195: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
13196: [$spacequalifierrest]);
13197: return $env{'form.'.$spacequalifierrest};
13198: } elsif ($realm eq 'request') {
13199: # ------------------------------------------------------------- request.browser
13200: if ($space eq 'browser') {
13201: return $env{'browser.'.$qualifier};
13202: # ------------------------------------------------------------ request.filename
13203: } else {
13204: return $env{'request.'.$spacequalifierrest};
13205: }
13206: } elsif ($realm eq 'course') {
13207: # ---------------------------------------------------------- course.description
13208: return $env{'course.'.$courseid.'.'.$spacequalifierrest};
13209: } elsif ($realm eq 'resource') {
13210:
13211: if (defined($courseid) && $courseid eq $env{'request.course.id'}) {
13212: if (!$symbparm) { $symbparm=&symbread(); }
13213: }
13214:
13215: if ($qualifier eq '') {
13216: if ($space eq 'title') {
13217: if (!$symbparm) { $symbparm = $env{'request.filename'}; }
13218: return &gettitle($symbparm);
13219: }
13220:
13221: if ($space eq 'map') {
13222: my ($map) = &decode_symb($symbparm);
13223: return &symbread($map);
13224: }
13225: if ($space eq 'maptitle') {
13226: my ($map) = &decode_symb($symbparm);
13227: return &gettitle($map);
13228: }
13229: if ($space eq 'filename') {
13230: if ($symbparm) {
13231: return &clutter((&decode_symb($symbparm))[2]);
13232: }
13233: return &hreflocation('',$env{'request.filename'});
13234: }
13235:
13236: if ((defined($courseid)) && ($courseid eq $env{'request.course.id'}) && $symbparm) {
13237: if ($space eq 'visibleparts') {
13238: my $navmap = Apache::lonnavmaps::navmap->new();
13239: my $item;
13240: if (ref($navmap)) {
13241: my $res = $navmap->getBySymb($symbparm);
13242: my $parts = $res->parts();
13243: if (ref($parts) eq 'ARRAY') {
13244: $item = join(',',@{$parts});
13245: }
13246: undef($navmap);
13247: }
13248: return $item;
13249: }
13250: }
13251: }
13252:
13253: my ($section, $group, @groups, @recurseup, $recursed);
13254: if (ref($recurseupref) eq 'ARRAY') {
13255: @recurseup = @{$recurseupref};
13256: $recursed = 1;
13257: }
13258: my ($courselevelm,$courseleveli,$courselevel,$mapp);
13259: if (($courseid eq '') && ($cid)) {
13260: $courseid = $cid;
13261: }
13262: if (($symbparm && $courseid) &&
13263: (($courseid eq $env{'request.course.id'}) || ($courseid eq $cid))) {
13264:
13265: #print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;
13266:
13267: # ----------------------------------------------------- Cascading lookup scheme
13268: my $symbp=$symbparm;
13269: $mapp=&deversion((&decode_symb($symbp))[0]);
13270: my $symbparm=$symbp.'.'.$spacequalifierrest;
13271: my $recurseparm=$mapp.'___(rec).'.$spacequalifierrest;
13272: my $mapparm=$mapp.'___(all).'.$spacequalifierrest;
13273: if (($env{'user.name'} eq $uname) &&
13274: ($env{'user.domain'} eq $udom)) {
13275: $section=$env{'request.course.sec'};
13276: @groups = split(/:/,$env{'request.course.groups'});
13277: @groups=&sort_course_groups($courseid,@groups);
13278: } else {
13279: if (! defined($usection)) {
13280: $section=&getsection($udom,$uname,$courseid);
13281: } else {
13282: $section = $usection;
13283: }
13284: @groups = &get_users_groups($udom,$uname,$courseid);
13285: }
13286:
13287: my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest;
13288: my $seclevelr=$courseid.'.['.$section.'].'.$symbparm;
13289: my $secleveli=$courseid.'.['.$section.'].'.$recurseparm;
13290: my $seclevelm=$courseid.'.['.$section.'].'.$mapparm;
13291:
13292: $courselevel=$courseid.'.'.$spacequalifierrest;
13293: my $courselevelr=$courseid.'.'.$symbparm;
13294: $courseleveli=$courseid.'.'.$recurseparm;
13295: $courselevelm=$courseid.'.'.$mapparm;
13296:
13297: # ----------------------------------------------------------- first, check user
13298:
13299: my $userreply=&resdata($uname,$udom,'user',$mapp,\$recursed,
13300: \@recurseup,$courseid,'.',$spacequalifierrest,
13301: ([$courselevelr,'resource'],
13302: [$courselevelm,'map' ],
13303: [$courseleveli,'map' ],
13304: [$courselevel, 'course' ]));
13305: if (defined($userreply)) { return &get_reply($userreply); }
13306:
13307: # ------------------------------------------------ second, check some of course
13308: my $coursereply;
13309: if (@groups > 0) {
13310: $coursereply = &check_group_parms($courseid,\@groups,$symbparm,
13311: $recurseparm,$mapparm,$spacequalifierrest,
13312: $mapp,\$recursed,\@recurseup);
13313: if (defined($coursereply)) { return &get_reply($coursereply); }
13314: }
13315:
13316: $coursereply=&resdata($env{'course.'.$courseid.'.num'},
13317: $env{'course.'.$courseid.'.domain'},
13318: 'course',$mapp,\$recursed,\@recurseup,
13319: $courseid,'.['.$section.'].',$spacequalifierrest,
13320: ([$seclevelr, 'resource'],
13321: [$seclevelm, 'map' ],
13322: [$secleveli, 'map' ],
13323: [$seclevel, 'course' ],
13324: [$courselevelr,'resource']));
13325: if (defined($coursereply)) { return &get_reply($coursereply); }
13326:
13327: # ------------------------------------------------------ third, check map parms
13328: my %parmhash=();
13329: my $thisparm='';
13330: if (tie(%parmhash,'GDBM_File',
13331: $env{'request.course.fn'}.'_parms.db',
13332: &GDBM_READER(),0640)) {
13333: $thisparm=$parmhash{$symbparm};
13334: untie(%parmhash);
13335: }
13336: if ($thisparm) { return &get_reply([$thisparm,'resource']); }
13337: }
13338: # ------------------------------------------ fourth, look in resource metadata
13339:
13340: my $what = $spacequalifierrest;
13341: $what=~s/\./\_/;
13342: my $filename;
13343: if (!$symbparm) { $symbparm=&symbread(); }
13344: if ($symbparm) {
13345: $filename=(&decode_symb($symbparm))[2];
13346: } else {
13347: $filename=$env{'request.filename'};
13348: }
13349: my $toolsymb;
13350: if (($filename =~ /ext\.tool$/) && ($what ne '0_gradable')) {
13351: $toolsymb = $symbparm;
13352: }
13353: my $metadata=&metadata($filename,$what,$toolsymb);
13354: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
13355: $metadata=&metadata($filename,'parameter_'.$what,$toolsymb);
13356: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
13357:
13358: # ----------------------------------------------- fifth, look in rest of course
13359: if ($symbparm && defined($courseid) &&
13360: $courseid eq $env{'request.course.id'}) {
13361: my $coursereply=&resdata($env{'course.'.$courseid.'.num'},
13362: $env{'course.'.$courseid.'.domain'},
13363: 'course',$mapp,\$recursed,\@recurseup,
13364: $courseid,'.',$spacequalifierrest,
13365: ([$courselevelm,'map' ],
13366: [$courseleveli,'map' ],
13367: [$courselevel, 'course']));
13368: if (defined($coursereply)) { return &get_reply($coursereply); }
13369: }
13370: # ------------------------------------------------------------------ Cascade up
13371: unless ($space eq '0') {
13372: my @parts=split(/_/,$space);
13373: my $id=pop(@parts);
13374: my $part=join('_',@parts);
13375: if ($part eq '') { $part='0'; }
13376: my @partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest,
13377: $symbparm,$udom,$uname,$section,1);
13378: if (defined($partgeneral[0])) { return &get_reply(\@partgeneral); }
13379: }
13380: if ($recurse) { return undef; }
13381: my $pack_def=&packages_tab_default($filename,$varname,$toolsymb);
13382: if (defined($pack_def)) { return &get_reply([$pack_def,'resource']); }
13383: # ---------------------------------------------------- Any other user namespace
13384: } elsif ($realm eq 'environment') {
13385: # ----------------------------------------------------------------- environment
13386: if (($uname eq $env{'user.name'})&&($udom eq $env{'user.domain'})) {
13387: return $env{'environment.'.$spacequalifierrest};
13388: } else {
13389: if ($uname eq 'anonymous' && $udom eq '') {
13390: return '';
13391: }
13392: my %returnhash=&userenvironment($udom,$uname,
13393: $spacequalifierrest);
13394: return $returnhash{$spacequalifierrest};
13395: }
13396: } elsif ($realm eq 'system') {
13397: # ----------------------------------------------------------------- system.time
13398: if ($space eq 'time') {
13399: return time;
13400: }
13401: } elsif ($realm eq 'server') {
13402: # ----------------------------------------------------------------- system.time
13403: if ($space eq 'name') {
13404: return $ENV{'SERVER_NAME'};
13405: }
13406: } elsif ($realm eq 'client') {
13407: if ($space eq 'remote_addr') {
13408: return &get_requestor_ip();
13409: }
13410: }
13411: return '';
13412: }
13413:
13414: sub get_reply {
13415: my ($reply_value) = @_;
13416: if (ref($reply_value) eq 'ARRAY') {
13417: if (wantarray) {
13418: return @$reply_value;
13419: }
13420: return $reply_value->[0];
13421: } else {
13422: return $reply_value;
13423: }
13424: }
13425:
13426: sub check_group_parms {
13427: my ($courseid,$groups,$symbparm,$recurseparm,$mapparm,$what,$mapp,
13428: $recursed,$recurseupref) = @_;
13429: my @levels = ([$symbparm,'resource'],[$mapparm,'map'],[$recurseparm,'map'],
13430: [$what,'course']);
13431: my $coursereply;
13432: foreach my $group (@{$groups}) {
13433: my @groupitems = ();
13434: foreach my $level (@levels) {
13435: my $item = $courseid.'.['.$group.'].'.$level->[0];
13436: push(@groupitems,[$item,$level->[1]]);
13437: }
13438: my $coursereply = &resdata($env{'course.'.$courseid.'.num'},
13439: $env{'course.'.$courseid.'.domain'},
13440: 'course',$mapp,$recursed,$recurseupref,
13441: $courseid,'.['.$group.'].',$what,
13442: @groupitems);
13443: last if (defined($coursereply));
13444: }
13445: return $coursereply;
13446: }
13447:
13448: sub get_map_hierarchy {
13449: my ($mapname,$courseid) = @_;
13450: my @recurseup = ();
13451: if ($mapname) {
13452: if (($cachedmapkey eq $courseid) &&
13453: (abs($cachedmaptime-time)<5)) {
13454: if (ref($cachedmaps{$mapname}) eq 'ARRAY') {
13455: return @{$cachedmaps{$mapname}};
13456: }
13457: }
13458: my $navmap = Apache::lonnavmaps::navmap->new();
13459: if (ref($navmap)) {
13460: @recurseup = $navmap->recurseup_maps($mapname);
13461: undef($navmap);
13462: $cachedmaps{$mapname} = \@recurseup;
13463: $cachedmaptime=time;
13464: $cachedmapkey=$courseid;
13465: }
13466: }
13467: return @recurseup;
13468: }
13469:
13470: }
13471:
13472: sub sort_course_groups { # Sort groups based on defined rankings. Default is sort().
13473: my ($courseid,@groups) = @_;
13474: @groups = sort(@groups);
13475: return @groups;
13476: }
13477:
13478: sub packages_tab_default {
13479: my ($uri,$varname,$toolsymb)=@_;
13480: my (undef,$part,$name)=split(/\./,$varname);
13481:
13482: my (@extension,@specifics,$do_default);
13483: foreach my $package (split(/,/,&metadata($uri,'packages',$toolsymb))) {
13484: my ($pack_type,$pack_part)=split(/_/,$package,2);
13485: if ($pack_type eq 'default') {
13486: $do_default=1;
13487: } elsif ($pack_type eq 'extension') {
13488: push(@extension,[$package,$pack_type,$pack_part]);
13489: } elsif ($pack_part eq $part || $pack_type eq 'part') {
13490: # only look at packages defaults for packages that this id is
13491: push(@specifics,[$package,$pack_type,$pack_part]);
13492: }
13493: }
13494: # first look for a package that matches the requested part id
13495: foreach my $package (@specifics) {
13496: my (undef,$pack_type,$pack_part)=@{$package};
13497: next if ($pack_part ne $part);
13498: if (defined($packagetab{"$pack_type&$name&default"})) {
13499: return $packagetab{"$pack_type&$name&default"};
13500: }
13501: }
13502: # look for any possible matching non extension_ package
13503: foreach my $package (@specifics) {
13504: my (undef,$pack_type,$pack_part)=@{$package};
13505: if (defined($packagetab{"$pack_type&$name&default"})) {
13506: return $packagetab{"$pack_type&$name&default"};
13507: }
13508: if ($pack_type eq 'part') { $pack_part='0'; }
13509: if (defined($packagetab{$pack_type."_".$pack_part."&$name&default"})) {
13510: return $packagetab{$pack_type."_".$pack_part."&$name&default"};
13511: }
13512: }
13513: # look for any posible extension_ match
13514: foreach my $package (@extension) {
13515: my ($package,$pack_type)=@{$package};
13516: if (defined($packagetab{"$pack_type&$name&default"})) {
13517: return $packagetab{"$pack_type&$name&default"};
13518: }
13519: if (defined($packagetab{$package."&$name&default"})) {
13520: return $packagetab{$package."&$name&default"};
13521: }
13522: }
13523: # look for a global default setting
13524: if ($do_default && defined($packagetab{"default&$name&default"})) {
13525: return $packagetab{"default&$name&default"};
13526: }
13527: return undef;
13528: }
13529:
13530: sub add_prefix_and_part {
13531: my ($prefix,$part)=@_;
13532: my $keyroot;
13533: if (defined($prefix) && $prefix !~ /^__/) {
13534: # prefix that has a part already
13535: $keyroot=$prefix;
13536: } elsif (defined($prefix)) {
13537: # prefix that is missing a part
13538: if (defined($part)) { $keyroot='_'.$part.substr($prefix,1); }
13539: } else {
13540: # no prefix at all
13541: if (defined($part)) { $keyroot='_'.$part; }
13542: }
13543: return $keyroot;
13544: }
13545:
13546: # ---------------------------------------------------------------- Get metadata
13547:
13548: my %metaentry;
13549: my %importedpartids;
13550: my %importedrespids;
13551: sub metadata {
13552: my ($uri,$what,$toolsymb,$liburi,$prefix,$depthcount)=@_;
13553: $uri=&declutter($uri);
13554: # if it is a non metadata possible uri return quickly
13555: if (($uri eq '') ||
13556: (($uri =~ m|^/*adm/|) &&
13557: ($uri !~ m|^adm/includes|) && ($uri !~ m{/(smppg|bulletinboard|ext\.tool)$})) ||
13558: ($uri =~ m|/$|) || ($uri =~ m|/.meta$|) || ($uri =~ m{^/*uploaded/.+\.sequence$})) {
13559: return undef;
13560: }
13561: if (($uri =~ /^priv/ || $uri=~m{^home/httpd/html/priv})
13562: && &Apache::lonxml::get_state('target') =~ /^(|meta)$/) {
13563: return undef;
13564: }
13565: my $filename=$uri;
13566: $uri=~s/\.meta$//;
13567: #
13568: # Is the metadata already cached?
13569: # Look at timestamp of caching
13570: # Everything is cached by the main uri, libraries are never directly cached
13571: #
13572: if (!defined($liburi)) {
13573: my ($result,$cached)=&is_cached_new('meta',$uri);
13574: if (defined($cached)) { return $result->{':'.$what}; }
13575: }
13576:
13577: #
13578: # If the uri is for an external tool the file from
13579: # which metadata should be retrieved depends on whether
13580: # the tool had been configured to be gradable (set in the Course
13581: # Editor or Resource Editor).
13582: #
13583: # If a valid symb has been included as the third arg in the call
13584: # to &metadata() that can be used to retrieve the value of
13585: # parameter_0_gradable set for the resource, and included in the
13586: # uploaded map containing the tool. The value is retrieved via
13587: # &EXT(), if a valid symb is available. Otherwise the value of
13588: # gradable in the exttool_$marker.db file for the tool instance
13589: # is retrieved via &get().
13590: #
13591: # When lonuserstate::traceroute() calls lonnet::EXT() for
13592: # hiddenresource and encrypturl (during course initialization)
13593: # the map-level parameter for resource.0.gradable included in the
13594: # uploaded map containing the tool will not yet have been stored
13595: # in the user_course_parms.db file for the user's session, so in
13596: # this case fall back to retrieving gradable status from the
13597: # exttool_$marker.db file.
13598: #
13599: # In order to avoid an infinite loop, &metadata() will return
13600: # before a call to &EXT(), if the uri is for an external tool
13601: # and the $what for which metadata is being requested is
13602: # parameter_0_gradable or 0_gradable.
13603: #
13604:
13605: if ($uri =~ /ext\.tool$/) {
13606: if (($what eq 'parameter_0_gradable') || ($what eq '0_gradable')) {
13607: return;
13608: } else {
13609: my ($checked,$use_passback);
13610: if ($toolsymb ne '') {
13611: (undef,undef,my $tooluri) = &decode_symb($toolsymb);
13612: if (($tooluri eq $uri) && (&EXT('resource.0.gradable',$toolsymb))) {
13613: $checked = 1;
13614: if (&EXT('resource.0.gradable',$toolsymb) =~ /^yes$/i) {
13615: $use_passback = 1;
13616: }
13617: }
13618: }
13619: unless ($checked) {
13620: my ($ignore,$cdom,$cnum,$marker) = split(m{/},$uri);
13621: $marker=~s/\D//g;
13622: if ($marker) {
13623: my %toolsettings=&get('exttool_'.$marker,['gradable'],$cdom,$cnum);
13624: $use_passback = $toolsettings{'gradable'};
13625: }
13626: }
13627: if ($use_passback) {
13628: $filename = '/home/httpd/html/res/lib/templates/LTIpassback.tool';
13629: } else {
13630: $filename = '/home/httpd/html/res/lib/templates/LTIstandard.tool';
13631: }
13632: }
13633: }
13634:
13635: {
13636: # Imported parts would go here
13637: my @origfiletagids=();
13638: my $importedparts=0;
13639:
13640: # Imported responseids would go here
13641: my $importedresponses=0;
13642: #
13643: # Is this a recursive call for a library?
13644: #
13645: # if (! exists($metacache{$uri})) {
13646: # $metacache{$uri}={};
13647: # }
13648: my $cachetime = 60*60;
13649: if ($liburi) {
13650: $liburi=&declutter($liburi);
13651: $filename=$liburi;
13652: } else {
13653: &devalidate_cache_new('meta',$uri);
13654: undef(%metaentry);
13655: }
13656: my %metathesekeys=();
13657: unless ($filename=~/\.meta$/) { $filename.='.meta'; }
13658: my $metastring;
13659: if ($uri =~ /^priv/ || $uri=~/home\/httpd\/html\/priv/) {
13660: my $which = &hreflocation('','/'.($liburi || $uri));
13661: $metastring =
13662: &Apache::lonnet::ssi_body($which,
13663: ('grade_target' => 'meta'));
13664: $cachetime = 1; # only want this cached in the child not long term
13665: } elsif (($uri !~ m -^(editupload)/-) &&
13666: ($uri !~ m{^/*uploaded/$match_domain/$match_courseid/docs/})) {
13667: my $file=&filelocation('',&clutter($filename));
13668: #push(@{$metaentry{$uri.'.file'}},$file);
13669: $metastring=&getfile($file);
13670: }
13671: my $parser=HTML::LCParser->new(\$metastring);
13672: my $token;
13673: undef %metathesekeys;
13674: while ($token=$parser->get_token) {
13675: if ($token->[0] eq 'S') {
13676: if (defined($token->[2]->{'package'})) {
13677: #
13678: # This is a package - get package info
13679: #
13680: my $package=$token->[2]->{'package'};
13681: my $keyroot=&add_prefix_and_part($prefix,$token->[2]->{'part'});
13682: if (defined($token->[2]->{'id'})) {
13683: $keyroot.='_'.$token->[2]->{'id'};
13684: }
13685: if ($metaentry{':packages'}) {
13686: $metaentry{':packages'}.=','.$package.$keyroot;
13687: } else {
13688: $metaentry{':packages'}=$package.$keyroot;
13689: }
13690: foreach my $pack_entry (keys(%packagetab)) {
13691: my $part=$keyroot;
13692: $part=~s/^\_//;
13693: if ($pack_entry=~/^\Q$package\E\&/ ||
13694: $pack_entry=~/^\Q$package\E_0\&/) {
13695: my ($pack,$name,$subp)=split(/\&/,$pack_entry);
13696: # ignore package.tab specified default values
13697: # here &package_tab_default() will fetch those
13698: if ($subp eq 'default') { next; }
13699: my $value=$packagetab{$pack_entry};
13700: my $unikey;
13701: if ($pack =~ /_0$/) {
13702: $unikey='parameter_0_'.$name;
13703: $part=0;
13704: } else {
13705: $unikey='parameter'.$keyroot.'_'.$name;
13706: }
13707: if ($subp eq 'display') {
13708: $value.=' [Part: '.$part.']';
13709: }
13710: $metaentry{':'.$unikey.'.part'}=$part;
13711: $metathesekeys{$unikey}=1;
13712: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
13713: $metaentry{':'.$unikey.'.'.$subp}=$value;
13714: }
13715: if (defined($metaentry{':'.$unikey.'.default'})) {
13716: $metaentry{':'.$unikey}=
13717: $metaentry{':'.$unikey.'.default'};
13718: }
13719: }
13720: }
13721: } else {
13722: #
13723: # This is not a package - some other kind of start tag
13724: #
13725: my $entry=$token->[1];
13726: my $unikey='';
13727:
13728: if ($entry eq 'import') {
13729: #
13730: # Importing a library here
13731: #
13732: my $location=$parser->get_text('/import');
13733: my $dir=$filename;
13734: $dir=~s|[^/]*$||;
13735: $location=&filelocation($dir,$location);
13736:
13737: my $importid=$token->[2]->{'id'};
13738: my $importmode=$token->[2]->{'importmode'};
13739: #
13740: # Check metadata for imported file to
13741: # see if it contained response items
13742: #
13743: my ($origfile,@libfilekeys);
13744: my %currmetaentry = %metaentry;
13745: @libfilekeys = split(/,/,&metadata($location,'keys',undef,undef,undef,
13746: $depthcount+1));
13747: if (grep(/^responseorder$/,@libfilekeys)) {
13748: my $libresponseorder = &metadata($location,'responseorder',undef,undef,
13749: undef,$depthcount+1);
13750: if ($libresponseorder ne '') {
13751: if ($#origfiletagids<0) {
13752: undef(%importedrespids);
13753: undef(%importedpartids);
13754: }
13755: my @respids = split(/\s*,\s*/,$libresponseorder);
13756: if (@respids) {
13757: $importedrespids{$importid} = join(',',map { $importid.'_'.$_ } @respids);
13758: }
13759: if ($importedrespids{$importid} ne '') {
13760: $importedresponses = 1;
13761: # We need to get the original file and the imported file to get the response order correct
13762: # Load and inspect original file
13763: if ($#origfiletagids<0) {
13764: my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri);
13765: $origfile=&getfile($origfilelocation);
13766: @origfiletagids=($origfile=~/<((?:\w+)response|import|part)[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
13767: }
13768: }
13769: }
13770: }
13771: # Do not overwrite contents of %metaentry hash for resource itself with
13772: # hash populated for imported library file
13773: %metaentry = %currmetaentry;
13774: undef(%currmetaentry);
13775: if ($importmode eq 'part') {
13776: # Import as part(s)
13777: $importedparts=1;
13778: # We need to get the original file and the imported file to get the part order correct
13779: # Good news: we do not need to worry about nested libraries, since parts cannot be nested
13780: # Load and inspect original file if we didn't do that already
13781: if ($#origfiletagids<0) {
13782: undef(%importedrespids);
13783: undef(%importedpartids);
13784: if ($origfile eq '') {
13785: my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri);
13786: $origfile=&getfile($origfilelocation);
13787: @origfiletagids=($origfile=~/<(part|import)[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
13788: }
13789: }
13790: my @impfilepartids;
13791: # If <partorder> tag is included in metadata for the imported file
13792: # get the parts in the imported file from that.
13793: if (grep(/^partorder$/,@libfilekeys)) {
13794: %currmetaentry = %metaentry;
13795: my $libpartorder = &metadata($location,'partorder',undef,undef,undef,
13796: $depthcount+1);
13797: %metaentry = %currmetaentry;
13798: undef(%currmetaentry);
13799: if ($libpartorder ne '') {
13800: @impfilepartids=split(/\s*,\s*/,$libpartorder);
13801: }
13802: } else {
13803: # If no <partorder> tag available, load and inspect imported file
13804: my $impfile=&getfile($location);
13805: @impfilepartids=($impfile=~/<part[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
13806: }
13807: if ($#impfilepartids>=0) {
13808: # This problem had parts
13809: $importedpartids{$token->[2]->{'id'}}=join(',',@impfilepartids);
13810: } else {
13811: # Importing by turning a single problem into a problem part
13812: # It gets the import-tags ID as part-ID
13813: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'id'});
13814: $importedpartids{$token->[2]->{'id'}}=$token->[2]->{'id'};
13815: }
13816: } else {
13817: # Import as problem or as normal import
13818: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
13819: unless ($importmode eq 'problem') {
13820: # Normal import
13821: if (defined($token->[2]->{'id'})) {
13822: $unikey.='_'.$token->[2]->{'id'};
13823: }
13824: }
13825: # Check metadata for imported file to
13826: # see if it contained parts
13827: if (grep(/^partorder$/,@libfilekeys)) {
13828: %currmetaentry = %metaentry;
13829: my $libpartorder = &metadata($location,'partorder',undef,undef,undef,
13830: $depthcount+1);
13831: %metaentry = %currmetaentry;
13832: undef(%currmetaentry);
13833: if ($libpartorder ne '') {
13834: $importedparts = 1;
13835: $importedpartids{$token->[2]->{'id'}}=$libpartorder;
13836: }
13837: }
13838: }
13839: if ($depthcount<20) {
13840: my $metadata =
13841: &metadata($uri,'keys',$toolsymb,$location,$unikey,
13842: $depthcount+1);
13843: foreach my $meta (split(',',$metadata)) {
13844: $metaentry{':'.$meta}=$metaentry{':'.$meta};
13845: $metathesekeys{$meta}=1;
13846: }
13847: }
13848: } else {
13849: #
13850: # Not importing, some other kind of non-package, non-library start tag
13851: #
13852: $unikey=$entry.&add_prefix_and_part($prefix,$token->[2]->{'part'});
13853: if (defined($token->[2]->{'id'})) {
13854: $unikey.='_'.$token->[2]->{'id'};
13855: }
13856: if (defined($token->[2]->{'name'})) {
13857: $unikey.='_'.$token->[2]->{'name'};
13858: }
13859: $metathesekeys{$unikey}=1;
13860: foreach my $param (@{$token->[3]}) {
13861: $metaentry{':'.$unikey.'.'.$param} =
13862: $token->[2]->{$param};
13863: }
13864: my $internaltext=&HTML::Entities::decode($parser->get_text('/'.$entry));
13865: my $default=$metaentry{':'.$unikey.'.default'};
13866: if ( $internaltext =~ /^\s*$/ && $default !~ /^\s*$/) {
13867: # only ws inside the tag, and not in default, so use default
13868: # as value
13869: $metaentry{':'.$unikey}=$default;
13870: } elsif ( $internaltext =~ /\S/ ) {
13871: # something interesting inside the tag
13872: $metaentry{':'.$unikey}=$internaltext;
13873: } else {
13874: # no interesting values, don't set a default
13875: }
13876: # end of not-a-package not-a-library import
13877: }
13878: # end of not-a-package start tag
13879: }
13880: # the next is the end of "start tag"
13881: }
13882: }
13883: my ($extension) = ($uri =~ /\.(\w+)$/);
13884: $extension = lc($extension);
13885: if ($extension eq 'htm') { $extension='html'; }
13886:
13887: foreach my $key (keys(%packagetab)) {
13888: #no specific packages #how's our extension
13889: if ($key!~/^extension_\Q$extension\E&/) { next; }
13890: &metadata_create_package_def($uri,$key,'extension_'.$extension,
13891: \%metathesekeys);
13892: }
13893:
13894: if (!exists($metaentry{':packages'})
13895: || $packagetab{"import_defaults&extension_$extension"}) {
13896: foreach my $key (keys(%packagetab)) {
13897: #no specific packages well let's get default then
13898: if ($key!~/^default&/) { next; }
13899: &metadata_create_package_def($uri,$key,'default',
13900: \%metathesekeys);
13901: }
13902: }
13903: # are there custom rights to evaluate
13904: if ($metaentry{':copyright'} eq 'custom') {
13905:
13906: #
13907: # Importing a rights file here
13908: #
13909: unless ($depthcount) {
13910: my $location=$metaentry{':customdistributionfile'};
13911: my $dir=$filename;
13912: $dir=~s|[^/]*$||;
13913: $location=&filelocation($dir,$location);
13914: my $rights_metadata =
13915: &metadata($uri,'keys',$toolsymb,$location,'_rights',
13916: $depthcount+1);
13917: foreach my $rights (split(',',$rights_metadata)) {
13918: #$metaentry{':'.$rights}=$metacache{$uri}->{':'.$rights};
13919: $metathesekeys{$rights}=1;
13920: }
13921: }
13922: }
13923: # uniqifiy package listing
13924: my %seen;
13925: my @uniq_packages =
13926: grep { ! $seen{$_} ++ } (split(',',$metaentry{':packages'}));
13927: $metaentry{':packages'} = join(',',@uniq_packages);
13928:
13929: if (($importedresponses) || ($importedparts)) {
13930: if ($importedparts) {
13931: # We had imported parts and need to rebuild partorder
13932: $metaentry{':partorder'}='';
13933: $metathesekeys{'partorder'}=1;
13934: }
13935: if ($importedresponses) {
13936: # We had imported responses and need to rebuil responseorder
13937: $metaentry{':responseorder'}='';
13938: $metathesekeys{'responseorder'}=1;
13939: }
13940: for (my $index=0;$index<$#origfiletagids;$index+=2) {
13941: my $origid = $origfiletagids[$index+1];
13942: if ($origfiletagids[$index] eq 'part') {
13943: # Original part, part of the problem
13944: if ($importedparts) {
13945: $metaentry{':partorder'}.=','.$origid;
13946: }
13947: } elsif ($origfiletagids[$index] eq 'import') {
13948: if ($importedparts) {
13949: # We have imported parts at this position
13950: if ($importedpartids{$origid} ne '') {
13951: $metaentry{':partorder'}.=','.$importedpartids{$origid};
13952: }
13953: }
13954: if ($importedresponses) {
13955: # We have imported responses at this position
13956: if ($importedrespids{$origid} ne '') {
13957: $metaentry{':responseorder'}.=','.$importedrespids{$origid};
13958: }
13959: }
13960: } else {
13961: # Original response item, part of the problem
13962: if ($importedresponses) {
13963: $metaentry{':responseorder'}.=','.$origid;
13964: }
13965: }
13966: }
13967: if ($importedparts) {
13968: $metaentry{':partorder'}=~s/^\,//;
13969: }
13970: if ($importedresponses) {
13971: $metaentry{':responseorder'}=~s/^\,//;
13972: }
13973: }
13974: $metaentry{':keys'} = join(',',keys(%metathesekeys));
13975: &metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
13976: $metaentry{':allpossiblekeys'}=join(',',keys(%metathesekeys));
13977: unless ($liburi) {
13978: &do_cache_new('meta',$uri,\%metaentry,$cachetime);
13979: }
13980: # this is the end of "was not already recently cached
13981: }
13982: return $metaentry{':'.$what};
13983: }
13984:
13985: sub metadata_create_package_def {
13986: my ($uri,$key,$package,$metathesekeys)=@_;
13987: my ($pack,$name,$subp)=split(/\&/,$key);
13988: if ($subp eq 'default') { next; }
13989:
13990: if (defined($metaentry{':packages'})) {
13991: $metaentry{':packages'}.=','.$package;
13992: } else {
13993: $metaentry{':packages'}=$package;
13994: }
13995: my $value=$packagetab{$key};
13996: my $unikey;
13997: $unikey='parameter_0_'.$name;
13998: $metaentry{':'.$unikey.'.part'}=0;
13999: $$metathesekeys{$unikey}=1;
14000: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
14001: $metaentry{':'.$unikey.'.'.$subp}=$value;
14002: }
14003: if (defined($metaentry{':'.$unikey.'.default'})) {
14004: $metaentry{':'.$unikey}=
14005: $metaentry{':'.$unikey.'.default'};
14006: }
14007: }
14008:
14009: sub metadata_generate_part0 {
14010: my ($metadata,$metacache,$uri) = @_;
14011: my %allnames;
14012: foreach my $metakey (keys(%$metadata)) {
14013: if ($metakey=~/^parameter\_(.*)/) {
14014: my $part=$$metacache{':'.$metakey.'.part'};
14015: my $name=$$metacache{':'.$metakey.'.name'};
14016: if (! exists($$metadata{'parameter_0_'.$name.'.name'})) {
14017: $allnames{$name}=$part;
14018: }
14019: }
14020: }
14021: foreach my $name (keys(%allnames)) {
14022: $$metadata{"parameter_0_$name"}=1;
14023: my $key=":parameter_0_$name";
14024: $$metacache{"$key.part"}='0';
14025: $$metacache{"$key.name"}=$name;
14026: $$metacache{"$key.type"}=$$metacache{':parameter_'.
14027: $allnames{$name}.'_'.$name.
14028: '.type'};
14029: my $olddis=$$metacache{':parameter_'.$allnames{$name}.'_'.$name.
14030: '.display'};
14031: my $expr='[Part: '.$allnames{$name}.']';
14032: $olddis=~s/\Q$expr\E/\[Part: 0\]/;
14033: $$metacache{"$key.display"}=$olddis;
14034: }
14035: }
14036:
14037: # ------------------------------------------------------ Devalidate title cache
14038:
14039: sub devalidate_title_cache {
14040: my ($url)=@_;
14041: if (!$env{'request.course.id'}) { return; }
14042: my $symb=&symbread($url);
14043: if (!$symb) { return; }
14044: my $key=$env{'request.course.id'}."\0".$symb;
14045: &devalidate_cache_new('title',$key);
14046: }
14047:
14048: # ------------------------------------------------- Get the title of a course
14049:
14050: sub current_course_title {
14051: return $env{ 'course.' . $env{'request.course.id'} . '.description' };
14052: }
14053: # ------------------------------------------------- Get the title of a resource
14054:
14055: sub gettitle {
14056: my $urlsymb=shift;
14057: my $symb=&symbread($urlsymb);
14058: if ($symb) {
14059: my $key=$env{'request.course.id'}."\0".$symb;
14060: my ($result,$cached)=&is_cached_new('title',$key);
14061: if (defined($cached)) {
14062: return $result;
14063: }
14064: my ($map,$resid,$url)=&decode_symb($symb);
14065: my $title='';
14066: if (!$map && $resid == 0 && $url =~/default\.sequence$/) {
14067: $title = $env{'course.'.$env{'request.course.id'}.'.description'};
14068: } else {
14069: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
14070: &GDBM_READER(),0640)) {
14071: my $mapid=$bighash{'map_pc_'.&clutter($map)};
14072: $title=$bighash{'title_'.$mapid.'.'.$resid};
14073: untie(%bighash);
14074: }
14075: }
14076: $title=~s/\&colon\;/\:/gs;
14077: if ($title) {
14078: # Remember both $symb and $title for dynamic metadata
14079: $accesshash{$symb.'___crstitle'}=$title;
14080: $accesshash{&declutter($map).'___'.&declutter($url).'___usage'}=time;
14081: # Cache this title and then return it
14082: return &do_cache_new('title',$key,$title,600);
14083: }
14084: $urlsymb=$url;
14085: }
14086: my $title=&metadata($urlsymb,'title');
14087: if (!$title) { $title=(split('/',$urlsymb))[-1]; }
14088: return $title;
14089: }
14090:
14091: sub get_slot {
14092: my ($which,$cnum,$cdom)=@_;
14093: if (!$cnum || !$cdom) {
14094: (undef,my $courseid)=&whichuser();
14095: $cdom=$env{'course.'.$courseid.'.domain'};
14096: $cnum=$env{'course.'.$courseid.'.num'};
14097: }
14098: my $key=join("\0",'slots',$cdom,$cnum,$which);
14099: my %slotinfo;
14100: if (exists($remembered{$key})) {
14101: $slotinfo{$which} = $remembered{$key};
14102: } else {
14103: %slotinfo=&get('slots',[$which],$cdom,$cnum);
14104: &Apache::lonhomework::showhash(%slotinfo);
14105: my ($tmp)=keys(%slotinfo);
14106: if ($tmp=~/^error:/) { return (); }
14107: $remembered{$key} = $slotinfo{$which};
14108: }
14109: if (ref($slotinfo{$which}) eq 'HASH') {
14110: return %{$slotinfo{$which}};
14111: }
14112: return $slotinfo{$which};
14113: }
14114:
14115: sub get_reservable_slots {
14116: my ($cnum,$cdom,$uname,$udom) = @_;
14117: my $now = time;
14118: my $reservable_info;
14119: my $key=join("\0",'reservableslots',$cdom,$cnum,$uname,$udom);
14120: if (exists($remembered{$key})) {
14121: $reservable_info = $remembered{$key};
14122: } else {
14123: my %resv;
14124: ($resv{'now_order'},$resv{'now'},$resv{'future_order'},$resv{'future'}) =
14125: &Apache::loncommon::get_future_slots($cnum,$cdom,$now);
14126: $reservable_info = \%resv;
14127: $remembered{$key} = $reservable_info;
14128: }
14129: return $reservable_info;
14130: }
14131:
14132: sub get_course_slots {
14133: my ($cnum,$cdom) = @_;
14134: my $hashid=$cnum.':'.$cdom;
14135: my ($result,$cached) = &is_cached_new('allslots',$hashid);
14136: if (defined($cached)) {
14137: if (ref($result) eq 'HASH') {
14138: return %{$result};
14139: }
14140: } else {
14141: my %slots=&dump('slots',$cdom,$cnum);
14142: my ($tmp) = keys(%slots);
14143: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
14144: &do_cache_new('allslots',$hashid,\%slots,600);
14145: return %slots;
14146: }
14147: }
14148: return;
14149: }
14150:
14151: sub devalidate_slots_cache {
14152: my ($cnum,$cdom)=@_;
14153: my $hashid=$cnum.':'.$cdom;
14154: &devalidate_cache_new('allslots',$hashid);
14155: }
14156:
14157: sub get_coursechange {
14158: my ($cdom,$cnum) = @_;
14159: if ($cdom eq '' || $cnum eq '') {
14160: return unless ($env{'request.course.id'});
14161: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
14162: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
14163: }
14164: my $hashid=$cdom.'_'.$cnum;
14165: my ($change,$cached)=&is_cached_new('crschange',$hashid);
14166: if ((defined($cached)) && ($change ne '')) {
14167: return $change;
14168: } else {
14169: my %crshash;
14170: %crshash = &get('environment',['internal.contentchange'],$cdom,$cnum);
14171: if ($crshash{'internal.contentchange'} eq '') {
14172: $change = $env{'course.'.$cdom.'_'.$cnum.'.internal.created'};
14173: if ($change eq '') {
14174: %crshash = &get('environment',['internal.created'],$cdom,$cnum);
14175: $change = $crshash{'internal.created'};
14176: }
14177: } else {
14178: $change = $crshash{'internal.contentchange'};
14179: }
14180: my $cachetime = 600;
14181: &do_cache_new('crschange',$hashid,$change,$cachetime);
14182: }
14183: return $change;
14184: }
14185:
14186: sub devalidate_coursechange_cache {
14187: my ($cdom,$cnum)=@_;
14188: my $hashid=$cdom.'_'.$cnum;
14189: &devalidate_cache_new('crschange',$hashid);
14190: }
14191:
14192: sub get_suppchange {
14193: my ($cdom,$cnum) = @_;
14194: if ($cdom eq '' || $cnum eq '') {
14195: return unless ($env{'request.course.id'});
14196: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
14197: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
14198: }
14199: my $hashid=$cdom.'_'.$cnum;
14200: my ($change,$cached)=&is_cached_new('suppchange',$hashid);
14201: if ((defined($cached)) && ($change ne '')) {
14202: return $change;
14203: } else {
14204: my %crshash = &get('environment',['internal.supplementalchange'],$cdom,$cnum);
14205: if ($crshash{'internal.supplementalchange'} eq '') {
14206: $change = $env{'course.'.$cdom.'_'.$cnum.'.internal.created'};
14207: if ($change eq '') {
14208: %crshash = &get('environment',['internal.created'],$cdom,$cnum);
14209: $change = $crshash{'internal.created'};
14210: }
14211: } else {
14212: $change = $crshash{'internal.supplementalchange'};
14213: }
14214: my $cachetime = 600;
14215: &do_cache_new('suppchange',$hashid,$change,$cachetime);
14216: }
14217: return $change;
14218: }
14219:
14220: sub devalidate_suppchange_cache {
14221: my ($cdom,$cnum)=@_;
14222: my $hashid=$cdom.'_'.$cnum;
14223: &devalidate_cache_new('suppchange',$hashid);
14224: }
14225:
14226: sub update_supp_caches {
14227: my ($cdom,$cnum) = @_;
14228: my %servers = &internet_dom_servers($cdom);
14229: my @ids=¤t_machine_ids();
14230: foreach my $server (keys(%servers)) {
14231: next if (grep(/^\Q$server\E$/,@ids));
14232: my $hashid=$cnum.':'.$cdom;
14233: my $cachekey = &escape('showsupp').':'.&escape($hashid);
14234: &remote_devalidate_cache($server,[$cachekey]);
14235: }
14236: &has_unhidden_suppfiles($cnum,$cdom,1,1);
14237: &count_supptools($cnum,$cdom,1);
14238: my $now = time;
14239: if ($env{'request.course.id'} eq $cdom.'_'.$cnum) {
14240: &Apache::lonnet::appenv({'request.course.suppupdated' => $now});
14241: }
14242: &put('environment',{'internal.supplementalchange' => $now},
14243: $cdom,$cnum);
14244: &Apache::lonnet::appenv(
14245: {'course.'.$cdom.'_'.$cnum.'.internal.supplementalchange' => $now});
14246: &do_cache_new('suppchange',$cdom.'_'.$cnum,$now,600);
14247: }
14248:
14249: # ------------------------------------------------- Update symbolic store links
14250:
14251: sub symblist {
14252: my ($mapname,%newhash)=@_;
14253: $mapname=&deversion(&declutter($mapname));
14254: my %hash;
14255: if (($env{'request.course.fn'}) && (%newhash)) {
14256: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
14257: &GDBM_WRCREAT(),0640)) {
14258: foreach my $url (keys(%newhash)) {
14259: next if ($url eq 'last_known'
14260: && $env{'form.no_update_last_known'});
14261: $hash{declutter($url)}=&encode_symb($mapname,
14262: $newhash{$url}->[1],
14263: $newhash{$url}->[0]);
14264: }
14265: if (untie(%hash)) {
14266: return 'ok';
14267: }
14268: }
14269: }
14270: return 'error';
14271: }
14272:
14273: # --------------------------------------------------------------- Verify a symb
14274:
14275: sub symbverify {
14276: my ($symb,$thisurl,$encstate)=@_;
14277: my $thisfn=$thisurl;
14278: $thisfn=&declutter($thisfn);
14279: # direct jump to resource in page or to a sequence - will construct own symbs
14280: if ($thisfn=~/\.(page|sequence)$/) { return 1; }
14281: # check URL part
14282: my ($map,$resid,$url)=&decode_symb($symb);
14283:
14284: unless ($url eq $thisfn) { return 0; }
14285:
14286: $symb=&symbclean($symb);
14287: $thisurl=&deversion($thisurl);
14288: $thisfn=&deversion($thisfn);
14289:
14290: my %bighash;
14291: my $okay=0;
14292:
14293: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
14294: &GDBM_READER(),0640)) {
14295: if (($thisurl =~ m{^/adm/wrapper/ext/}) || ($thisurl =~ m{^ext/})) {
14296: $thisurl =~ s/\?.+$//;
14297: if ($map =~ m{^uploaded/.+\.page$}) {
14298: $thisurl =~ s{^(/adm/wrapper|)/ext/}{http://};
14299: $thisurl =~ s{^\Qhttp://https://\E}{https://};
14300: }
14301: }
14302: my $ids;
14303: if ($map =~ m{^uploaded/.+\.page$}) {
14304: $ids=$bighash{'ids_'.&clutter_with_no_wrapper($thisurl)};
14305: } else {
14306: $ids=$bighash{'ids_'.&clutter($thisurl)};
14307: }
14308: unless ($ids) {
14309: my $idkey = 'ids_'.($thisurl =~ m{^/}? '' : '/').$thisurl;
14310: $ids=$bighash{$idkey};
14311: }
14312: if ($ids) {
14313: # ------------------------------------------------------------------- Has ID(s)
14314: if ($thisfn =~ m{^/adm/wrapper/ext/}) {
14315: $symb =~ s/\?.+$//;
14316: }
14317: foreach my $id (split(/\,/,$ids)) {
14318: my ($mapid,$resid)=split(/\./,$id);
14319: if (
14320: &symbclean(&declutter($bighash{'map_id_'.$mapid}).'___'.$resid.'___'.$thisfn)
14321: eq $symb) {
14322: if (ref($encstate)) {
14323: $$encstate = $bighash{'encrypted_'.$id};
14324: }
14325: if (($env{'request.role.adv'}) ||
14326: ($bighash{'encrypted_'.$id} eq $env{'request.enc'}) ||
14327: ($thisurl eq '/adm/navmaps')) {
14328: $okay=1;
14329: last;
14330: }
14331: }
14332: }
14333: }
14334: untie(%bighash);
14335: }
14336: return $okay;
14337: }
14338:
14339: # --------------------------------------------------------------- Clean-up symb
14340:
14341: sub symbclean {
14342: my $symb=shift;
14343: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
14344: # remove version from map
14345: $symb=~s/\.(\d+)\.(\w+)\_\_\_/\.$2\_\_\_/;
14346:
14347: # remove version from URL
14348: $symb=~s/\.(\d+)\.(\w+)$/\.$2/;
14349:
14350: # remove wrapper
14351:
14352: $symb=~s/(\_\_\_\d+\_\_\_)adm\/wrapper\/(res\/)*/$1/;
14353: $symb=~s/(\_\_\_\d+\_\_\_)adm\/coursedocs\/showdoc\/(res\/)*/$1/;
14354: return $symb;
14355: }
14356:
14357: # ---------------------------------------------- Split symb to find map and url
14358:
14359: sub encode_symb {
14360: my ($map,$resid,$url)=@_;
14361: return &symbclean(&declutter($map).'___'.$resid.'___'.&declutter($url));
14362: }
14363:
14364: sub decode_symb {
14365: my $symb=shift;
14366: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
14367: my ($map,$resid,$url)=split(/___/,$symb);
14368: return (&fixversion($map),$resid,&fixversion($url));
14369: }
14370:
14371: sub fixversion {
14372: my $fn=shift;
14373: if ($fn=~/^(adm|uploaded|editupload|public)/) { return $fn; }
14374: my %bighash;
14375: my $uri=&clutter($fn);
14376: my $key=$env{'request.course.id'}.'_'.$uri;
14377: # is this cached?
14378: my ($result,$cached)=&is_cached_new('courseresversion',$key);
14379: if (defined($cached)) { return $result; }
14380: # unfortunately not cached, or expired
14381: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
14382: &GDBM_READER(),0640)) {
14383: if ($bighash{'version_'.$uri}) {
14384: my $version=$bighash{'version_'.$uri};
14385: unless (($version eq 'mostrecent') ||
14386: ($version==&getversion($uri))) {
14387: $uri=~s/\.(\w+)$/\.$version\.$1/;
14388: }
14389: }
14390: untie %bighash;
14391: }
14392: return &do_cache_new('courseresversion',$key,&declutter($uri),600);
14393: }
14394:
14395: sub deversion {
14396: my $url=shift;
14397: $url=~s/\.\d+\.(\w+)$/\.$1/;
14398: return $url;
14399: }
14400:
14401: # ------------------------------------------------------ Return symb list entry
14402:
14403: sub symbread {
14404: my ($thisfn,$donotrecurse,$ignorecachednull,$checkforblock,$possibles,
14405: $ignoresymbdb,$noenccheck)=@_;
14406: my $cache_str='request.symbread.cached.'.$thisfn;
14407: if (defined($env{$cache_str})) {
14408: unless (ref($possibles) eq 'HASH') {
14409: if ($ignorecachednull) {
14410: return $env{$cache_str} unless ($env{$cache_str} eq '');
14411: } else {
14412: return $env{$cache_str};
14413: }
14414: }
14415: }
14416: # no filename provided? try from environment
14417: unless ($thisfn) {
14418: if ($env{'request.symb'}) {
14419: return $env{$cache_str}=&symbclean($env{'request.symb'});
14420: }
14421: $thisfn=$env{'request.filename'};
14422: }
14423: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
14424: # is that filename actually a symb? Verify, clean, and return
14425: if ($thisfn=~/\_\_\_\d+\_\_\_(.*)$/) {
14426: if (&symbverify($thisfn,$1)) {
14427: return $env{$cache_str}=&symbclean($thisfn);
14428: }
14429: }
14430: $thisfn=declutter($thisfn);
14431: my %hash;
14432: my %bighash;
14433: my $syval='';
14434: if (($env{'request.course.fn'}) && ($thisfn)) {
14435: unless ($ignoresymbdb) {
14436: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
14437: &GDBM_READER(),0640)) {
14438: $syval=$hash{$thisfn};
14439: untie(%hash);
14440: }
14441: if ($syval && $checkforblock) {
14442: my @blockers = &has_comm_blocking('bre',$syval,$thisfn,$ignoresymbdb,$noenccheck);
14443: if (@blockers) {
14444: $syval='';
14445: }
14446: }
14447: }
14448: # ---------------------------------------------------------- There was an entry
14449: if ($syval) {
14450: #unless ($syval=~/\_\d+$/) {
14451: #unless ($env{'form.request.prefix'}=~/\.(\d+)\_$/) {
14452: #&appenv({'request.ambiguous' => $thisfn});
14453: #return $env{$cache_str}='';
14454: #}
14455: #$syval.=$1;
14456: #}
14457: } else {
14458: # ------------------------------------------------------- Was not in symb table
14459: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
14460: &GDBM_READER(),0640)) {
14461: # ---------------------------------------------- Get ID(s) for current resource
14462: my $ids=$bighash{'ids_'.&clutter($thisfn)};
14463: unless ($ids) {
14464: $ids=$bighash{'ids_/'.$thisfn};
14465: }
14466: unless ($ids) {
14467: # alias?
14468: $ids=$bighash{'mapalias_'.$thisfn};
14469: }
14470: if ($ids) {
14471: # ------------------------------------------------------------------- Has ID(s)
14472: my @possibilities=split(/\,/,$ids);
14473: if ($#possibilities==0) {
14474: # ----------------------------------------------- There is only one possibility
14475: my ($mapid,$resid)=split(/\./,$ids);
14476: $syval=&encode_symb($bighash{'map_id_'.$mapid},
14477: $resid,$thisfn);
14478: if (ref($possibles) eq 'HASH') {
14479: unless ($bighash{'randomout_'.$ids} || $env{'request.role.adv'}) {
14480: $possibles->{$syval} = 1;
14481: }
14482: }
14483: if ($checkforblock) {
14484: unless ($bighash{'randomout_'.$ids} || $env{'request.role.adv'}) {
14485: my @blockers = &has_comm_blocking('bre',$syval,$bighash{'src_'.$ids},'',$noenccheck);
14486: if (@blockers) {
14487: $syval = '';
14488: untie(%bighash);
14489: return $env{$cache_str}='';
14490: }
14491: }
14492: }
14493: } elsif ((!$donotrecurse) || ($checkforblock) || (ref($possibles) eq 'HASH')) {
14494: # ------------------------------------------ There is more than one possibility
14495: my $realpossible=0;
14496: foreach my $id (@possibilities) {
14497: my $file=$bighash{'src_'.$id};
14498: my $canaccess;
14499: if (($donotrecurse) || ($checkforblock) || (ref($possibles) eq 'HASH')) {
14500: $canaccess = 1;
14501: } else {
14502: $canaccess = &allowed('bre',$file);
14503: }
14504: if ($canaccess) {
14505: my ($mapid,$resid)=split(/\./,$id);
14506: if ($bighash{'map_type_'.$mapid} ne 'page') {
14507: my $poss_syval=&encode_symb($bighash{'map_id_'.$mapid},
14508: $resid,$thisfn);
14509: next if ($bighash{'randomout_'.$id} && !$env{'request.role.adv'});
14510: next unless (($noenccheck) || ($bighash{'encrypted_'.$id} eq $env{'request.enc'}));
14511: if ($checkforblock) {
14512: my @blockers = &has_comm_blocking('bre',$poss_syval,$file,'',$noenccheck);
14513: if (@blockers > 0) {
14514: $syval = '';
14515: } else {
14516: $syval = $poss_syval;
14517: $realpossible++;
14518: }
14519: } else {
14520: $syval = $poss_syval;
14521: $realpossible++;
14522: }
14523: if ($syval) {
14524: if (ref($possibles) eq 'HASH') {
14525: $possibles->{$syval} = 1;
14526: }
14527: }
14528: }
14529: }
14530: }
14531: if ($realpossible!=1) { $syval=''; }
14532: } else {
14533: $syval='';
14534: }
14535: }
14536: untie(%bighash);
14537: }
14538: }
14539: if ($syval) {
14540: return $env{$cache_str}=$syval;
14541: }
14542: }
14543: &appenv({'request.ambiguous' => $thisfn});
14544: return $env{$cache_str}='';
14545: }
14546:
14547: # ---------------------------------------------------------- Return random seed
14548:
14549: sub numval {
14550: my $txt=shift;
14551: $txt=~tr/A-J/0-9/;
14552: $txt=~tr/a-j/0-9/;
14553: $txt=~tr/K-T/0-9/;
14554: $txt=~tr/k-t/0-9/;
14555: $txt=~tr/U-Z/0-5/;
14556: $txt=~tr/u-z/0-5/;
14557: $txt=~s/\D//g;
14558: if ($_64bit) { if ($txt > 2**32) { return -1; } }
14559: return int($txt);
14560: }
14561:
14562: sub numval2 {
14563: my $txt=shift;
14564: $txt=~tr/A-J/0-9/;
14565: $txt=~tr/a-j/0-9/;
14566: $txt=~tr/K-T/0-9/;
14567: $txt=~tr/k-t/0-9/;
14568: $txt=~tr/U-Z/0-5/;
14569: $txt=~tr/u-z/0-5/;
14570: $txt=~s/\D//g;
14571: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
14572: my $total;
14573: foreach my $val (@txts) { $total+=$val; }
14574: if ($_64bit) { if ($total > 2**32) { return -1; } }
14575: return int($total);
14576: }
14577:
14578: sub numval3 {
14579: use integer;
14580: my $txt=shift;
14581: $txt=~tr/A-J/0-9/;
14582: $txt=~tr/a-j/0-9/;
14583: $txt=~tr/K-T/0-9/;
14584: $txt=~tr/k-t/0-9/;
14585: $txt=~tr/U-Z/0-5/;
14586: $txt=~tr/u-z/0-5/;
14587: $txt=~s/\D//g;
14588: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
14589: my $total;
14590: foreach my $val (@txts) { $total+=$val; }
14591: if ($_64bit) { $total=(($total<<32)>>32); }
14592: return $total;
14593: }
14594:
14595: sub digest {
14596: my ($data)=@_;
14597: my $digest=&Digest::MD5::md5($data);
14598: my ($a,$b,$c,$d)=unpack("iiii",$digest);
14599: my ($e,$f);
14600: {
14601: use integer;
14602: $e=($a+$b);
14603: $f=($c+$d);
14604: if ($_64bit) {
14605: $e=(($e<<32)>>32);
14606: $f=(($f<<32)>>32);
14607: }
14608: }
14609: if (wantarray) {
14610: return ($e,$f);
14611: } else {
14612: my $g;
14613: {
14614: use integer;
14615: $g=($e+$f);
14616: if ($_64bit) {
14617: $g=(($g<<32)>>32);
14618: }
14619: }
14620: return $g;
14621: }
14622: }
14623:
14624: sub latest_rnd_algorithm_id {
14625: return '64bit5';
14626: }
14627:
14628: sub get_rand_alg {
14629: my ($courseid)=@_;
14630: if (!$courseid) { $courseid=(&whichuser())[1]; }
14631: if ($courseid) {
14632: return $env{"course.$courseid.rndseed"};
14633: }
14634: return &latest_rnd_algorithm_id();
14635: }
14636:
14637: sub validCODE {
14638: my ($CODE)=@_;
14639: if (defined($CODE) && $CODE ne '' && $CODE =~ /^\w+$/) { return 1; }
14640: return 0;
14641: }
14642:
14643: sub getCODE {
14644: if (&validCODE($env{'form.CODE'})) { return $env{'form.CODE'}; }
14645: if ( (defined($Apache::lonhomework::parsing_a_problem) ||
14646: defined($Apache::lonhomework::parsing_a_task) ) &&
14647: &validCODE($Apache::lonhomework::history{'resource.CODE'})) {
14648: return $Apache::lonhomework::history{'resource.CODE'};
14649: }
14650: return undef;
14651: }
14652: #
14653: # Determines the random seed for a specific context:
14654: #
14655: # parameters:
14656: # symb - in course context the symb for the seed.
14657: # course_id - The course id of the form domain_coursenum.
14658: # domain - Domain for the user.
14659: # course - Course for the user.
14660: # cenv - environment of the course.
14661: #
14662: # NOTE:
14663: # All parameters are picked out of the environment if missing
14664: # or not defined.
14665: # If a symb cannot be determined the current time is used instead.
14666: #
14667: # For a given well defined symb, courside, domain, username,
14668: # and course environment, the seed is reproducible.
14669: #
14670: sub rndseed {
14671: my ($symb,$courseid,$domain,$username, $cenv)=@_;
14672: my ($wsymb,$wcourseid,$wdomain,$wusername)=&whichuser();
14673: if (!defined($symb)) {
14674: unless ($symb=$wsymb) { return time; }
14675: }
14676: if (!defined $courseid) {
14677: $courseid=$wcourseid;
14678: }
14679: if (!defined $domain) { $domain=$wdomain; }
14680: if (!defined $username) { $username=$wusername }
14681:
14682: my $which;
14683: if (defined($cenv->{'rndseed'})) {
14684: $which = $cenv->{'rndseed'};
14685: } else {
14686: $which =&get_rand_alg($courseid);
14687: }
14688: if (defined(&getCODE())) {
14689:
14690: if ($which eq '64bit5') {
14691: return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username);
14692: } elsif ($which eq '64bit4') {
14693: return &rndseed_CODE_64bit4($symb,$courseid,$domain,$username);
14694: } else {
14695: return &rndseed_CODE_64bit($symb,$courseid,$domain,$username);
14696: }
14697: } elsif ($which eq '64bit5') {
14698: return &rndseed_64bit5($symb,$courseid,$domain,$username);
14699: } elsif ($which eq '64bit4') {
14700: return &rndseed_64bit4($symb,$courseid,$domain,$username);
14701: } elsif ($which eq '64bit3') {
14702: return &rndseed_64bit3($symb,$courseid,$domain,$username);
14703: } elsif ($which eq '64bit2') {
14704: return &rndseed_64bit2($symb,$courseid,$domain,$username);
14705: } elsif ($which eq '64bit') {
14706: return &rndseed_64bit($symb,$courseid,$domain,$username);
14707: }
14708: return &rndseed_32bit($symb,$courseid,$domain,$username);
14709: }
14710:
14711: sub rndseed_32bit {
14712: my ($symb,$courseid,$domain,$username)=@_;
14713: {
14714: use integer;
14715: my $symbchck=unpack("%32C*",$symb) << 27;
14716: my $symbseed=numval($symb) << 22;
14717: my $namechck=unpack("%32C*",$username) << 17;
14718: my $nameseed=numval($username) << 12;
14719: my $domainseed=unpack("%32C*",$domain) << 7;
14720: my $courseseed=unpack("%32C*",$courseid);
14721: my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck;
14722: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
14723: #&logthis("rndseed :$num:$symb");
14724: if ($_64bit) { $num=(($num<<32)>>32); }
14725: return $num;
14726: }
14727: }
14728:
14729: sub rndseed_64bit {
14730: my ($symb,$courseid,$domain,$username)=@_;
14731: {
14732: use integer;
14733: my $symbchck=unpack("%32S*",$symb) << 21;
14734: my $symbseed=numval($symb) << 10;
14735: my $namechck=unpack("%32S*",$username);
14736:
14737: my $nameseed=numval($username) << 21;
14738: my $domainseed=unpack("%32S*",$domain) << 10;
14739: my $courseseed=unpack("%32S*",$courseid);
14740:
14741: my $num1=$symbchck+$symbseed+$namechck;
14742: my $num2=$nameseed+$domainseed+$courseseed;
14743: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
14744: #&logthis("rndseed :$num:$symb");
14745: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
14746: return "$num1,$num2";
14747: }
14748: }
14749:
14750: sub rndseed_64bit2 {
14751: my ($symb,$courseid,$domain,$username)=@_;
14752: {
14753: use integer;
14754: # strings need to be an even # of cahracters long, it it is odd the
14755: # last characters gets thrown away
14756: my $symbchck=unpack("%32S*",$symb.' ') << 21;
14757: my $symbseed=numval($symb) << 10;
14758: my $namechck=unpack("%32S*",$username.' ');
14759:
14760: my $nameseed=numval($username) << 21;
14761: my $domainseed=unpack("%32S*",$domain.' ') << 10;
14762: my $courseseed=unpack("%32S*",$courseid.' ');
14763:
14764: my $num1=$symbchck+$symbseed+$namechck;
14765: my $num2=$nameseed+$domainseed+$courseseed;
14766: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
14767: #&logthis("rndseed :$num:$symb");
14768: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
14769: return "$num1,$num2";
14770: }
14771: }
14772:
14773: sub rndseed_64bit3 {
14774: my ($symb,$courseid,$domain,$username)=@_;
14775: {
14776: use integer;
14777: # strings need to be an even # of cahracters long, it it is odd the
14778: # last characters gets thrown away
14779: my $symbchck=unpack("%32S*",$symb.' ') << 21;
14780: my $symbseed=numval2($symb) << 10;
14781: my $namechck=unpack("%32S*",$username.' ');
14782:
14783: my $nameseed=numval2($username) << 21;
14784: my $domainseed=unpack("%32S*",$domain.' ') << 10;
14785: my $courseseed=unpack("%32S*",$courseid.' ');
14786:
14787: my $num1=$symbchck+$symbseed+$namechck;
14788: my $num2=$nameseed+$domainseed+$courseseed;
14789: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
14790: #&logthis("rndseed :$num1:$num2:$_64bit");
14791: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
14792:
14793: return "$num1:$num2";
14794: }
14795: }
14796:
14797: sub rndseed_64bit4 {
14798: my ($symb,$courseid,$domain,$username)=@_;
14799: {
14800: use integer;
14801: # strings need to be an even # of cahracters long, it it is odd the
14802: # last characters gets thrown away
14803: my $symbchck=unpack("%32S*",$symb.' ') << 21;
14804: my $symbseed=numval3($symb) << 10;
14805: my $namechck=unpack("%32S*",$username.' ');
14806:
14807: my $nameseed=numval3($username) << 21;
14808: my $domainseed=unpack("%32S*",$domain.' ') << 10;
14809: my $courseseed=unpack("%32S*",$courseid.' ');
14810:
14811: my $num1=$symbchck+$symbseed+$namechck;
14812: my $num2=$nameseed+$domainseed+$courseseed;
14813: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
14814: #&logthis("rndseed :$num1:$num2:$_64bit");
14815: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
14816:
14817: return "$num1:$num2";
14818: }
14819: }
14820:
14821: sub rndseed_64bit5 {
14822: my ($symb,$courseid,$domain,$username)=@_;
14823: my ($num1,$num2)=&digest("$symb,$courseid,$domain,$username");
14824: return "$num1:$num2";
14825: }
14826:
14827: sub rndseed_CODE_64bit {
14828: my ($symb,$courseid,$domain,$username)=@_;
14829: {
14830: use integer;
14831: my $symbchck=unpack("%32S*",$symb.' ') << 16;
14832: my $symbseed=numval2($symb);
14833: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
14834: my $CODEseed=numval(&getCODE());
14835: my $courseseed=unpack("%32S*",$courseid.' ');
14836: my $num1=$symbseed+$CODEchck;
14837: my $num2=$CODEseed+$courseseed+$symbchck;
14838: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
14839: #&logthis("rndseed :$num1:$num2:$symb");
14840: if ($_64bit) { $num1=(($num1<<32)>>32); }
14841: if ($_64bit) { $num2=(($num2<<32)>>32); }
14842: return "$num1:$num2";
14843: }
14844: }
14845:
14846: sub rndseed_CODE_64bit4 {
14847: my ($symb,$courseid,$domain,$username)=@_;
14848: {
14849: use integer;
14850: my $symbchck=unpack("%32S*",$symb.' ') << 16;
14851: my $symbseed=numval3($symb);
14852: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
14853: my $CODEseed=numval3(&getCODE());
14854: my $courseseed=unpack("%32S*",$courseid.' ');
14855: my $num1=$symbseed+$CODEchck;
14856: my $num2=$CODEseed+$courseseed+$symbchck;
14857: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
14858: #&logthis("rndseed :$num1:$num2:$symb");
14859: if ($_64bit) { $num1=(($num1<<32)>>32); }
14860: if ($_64bit) { $num2=(($num2<<32)>>32); }
14861: return "$num1:$num2";
14862: }
14863: }
14864:
14865: sub rndseed_CODE_64bit5 {
14866: my ($symb,$courseid,$domain,$username)=@_;
14867: my $code = &getCODE();
14868: my ($num1,$num2)=&digest("$symb,$courseid,$code");
14869: return "$num1:$num2";
14870: }
14871:
14872: sub setup_random_from_rndseed {
14873: my ($rndseed)=@_;
14874: if ($rndseed =~/([,:])/) {
14875: my ($num1,$num2) = map { abs($_); } (split(/[,:]/,$rndseed));
14876: if ((!$num1) || (!$num2) || ($num1 > 2147483562) || ($num2 > 2147483398)) {
14877: &Math::Random::random_set_seed_from_phrase($rndseed);
14878: } else {
14879: &Math::Random::random_set_seed($num1,$num2);
14880: }
14881: } else {
14882: &Math::Random::random_set_seed_from_phrase($rndseed);
14883: }
14884: }
14885:
14886: sub latest_receipt_algorithm_id {
14887: return 'receipt3';
14888: }
14889:
14890: sub recunique {
14891: my $fucourseid=shift;
14892: my $unique;
14893: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' ||
14894: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
14895: $unique=$env{"course.$fucourseid.internal.encseed"};
14896: } else {
14897: $unique=$perlvar{'lonReceipt'};
14898: }
14899: return unpack("%32C*",$unique);
14900: }
14901:
14902: sub recprefix {
14903: my $fucourseid=shift;
14904: my $prefix;
14905: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2'||
14906: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
14907: $prefix=$env{"course.$fucourseid.internal.encpref"};
14908: } else {
14909: $prefix=$perlvar{'lonHostID'};
14910: }
14911: return unpack("%32C*",$prefix);
14912: }
14913:
14914: sub ireceipt {
14915: my ($funame,$fudom,$fucourseid,$fusymb,$part)=@_;
14916:
14917: my $return =&recprefix($fucourseid).'-';
14918:
14919: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt3' ||
14920: $env{'request.state'} eq 'construct') {
14921: $return .= (&digest("$funame,$fudom,$fucourseid,$fusymb,$part")%10000);
14922: return $return;
14923: }
14924:
14925: my $cuname=unpack("%32C*",$funame);
14926: my $cudom=unpack("%32C*",$fudom);
14927: my $cucourseid=unpack("%32C*",$fucourseid);
14928: my $cusymb=unpack("%32C*",$fusymb);
14929: my $cunique=&recunique($fucourseid);
14930: my $cpart=unpack("%32S*",$part);
14931: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') {
14932:
14933: #&logthis("doing receipt2 using parts $cpart, uname $cuname and udom $cudom gets ".($cpart%$cuname)." and ".($cpart%$cudom));
14934:
14935: $return.= ($cunique%$cuname+
14936: $cunique%$cudom+
14937: $cusymb%$cuname+
14938: $cusymb%$cudom+
14939: $cucourseid%$cuname+
14940: $cucourseid%$cudom+
14941: $cpart%$cuname+
14942: $cpart%$cudom);
14943: } else {
14944: $return.= ($cunique%$cuname+
14945: $cunique%$cudom+
14946: $cusymb%$cuname+
14947: $cusymb%$cudom+
14948: $cucourseid%$cuname+
14949: $cucourseid%$cudom);
14950: }
14951: return $return;
14952: }
14953:
14954: sub receipt {
14955: my ($part)=@_;
14956: my ($symb,$courseid,$domain,$name) = &whichuser();
14957: return &ireceipt($name,$domain,$courseid,$symb,$part);
14958: }
14959:
14960: sub whichuser {
14961: my ($passedsymb)=@_;
14962: my ($symb,$courseid,$domain,$name,$publicuser);
14963: if (defined($env{'form.grade_symb'})) {
14964: my ($tmp_courseid)=&get_env_multiple('form.grade_courseid');
14965: my $allowed=&allowed('vgr',$tmp_courseid);
14966: if (!$allowed &&
14967: exists($env{'request.course.sec'}) &&
14968: $env{'request.course.sec'} !~ /^\s*$/) {
14969: $allowed=&allowed('vgr',$tmp_courseid.
14970: '/'.$env{'request.course.sec'});
14971: }
14972: if ($allowed) {
14973: ($symb)=&get_env_multiple('form.grade_symb');
14974: $courseid=$tmp_courseid;
14975: ($domain)=&get_env_multiple('form.grade_domain');
14976: ($name)=&get_env_multiple('form.grade_username');
14977: return ($symb,$courseid,$domain,$name,$publicuser);
14978: }
14979: }
14980: if (!$passedsymb) {
14981: $symb=&symbread();
14982: } else {
14983: $symb=$passedsymb;
14984: }
14985: $courseid=$env{'request.course.id'};
14986: $domain=$env{'user.domain'};
14987: $name=$env{'user.name'};
14988: if ($name eq 'public' && $domain eq 'public') {
14989: if (!defined($env{'form.username'})) {
14990: $env{'form.username'}.=time.rand(10000000);
14991: }
14992: $name.=$env{'form.username'};
14993: }
14994: return ($symb,$courseid,$domain,$name,$publicuser);
14995:
14996: }
14997:
14998: # ------------------------------------------------------------ Serves up a file
14999: # returns either the contents of the file or
15000: # -1 if the file doesn't exist
15001: #
15002: # if the target is a file that was uploaded via DOCS,
15003: # a check will be made to see if a current copy exists on the local server,
15004: # if it does this will be served, otherwise a copy will be retrieved from
15005: # the home server for the course and stored in /home/httpd/html/userfiles on
15006: # the local server.
15007:
15008: sub getfile {
15009: my ($file) = @_;
15010: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
15011: &repcopy($file);
15012: return &readfile($file);
15013: }
15014:
15015: sub repcopy_userfile {
15016: my ($file)=@_;
15017: my $londocroot = $perlvar{'lonDocRoot'};
15018: if ($file =~ m{^/*(uploaded|editupload)/}) { $file=&filelocation("",$file); }
15019: if ($file =~ m{^\Q/home/httpd/lonUsers/\E}) { return 'ok'; }
15020: my ($cdom,$cnum,$filename) =
15021: ($file=~m|^\Q$perlvar{'lonDocRoot'}\E/+userfiles/+($match_domain)/+($match_name)/+(.*)|);
15022: my $uri="/uploaded/$cdom/$cnum/$filename";
15023: if (-e "$file") {
15024: # we already have a local copy, check it out
15025: my @fileinfo = stat($file);
15026: my $rtncode;
15027: my $info;
15028: my $lwpresp = &getuploaded('HEAD',$uri,$cdom,$cnum,\$info,\$rtncode);
15029: if ($lwpresp ne 'ok') {
15030: # there is no such file anymore, even though we had a local copy
15031: if ($rtncode eq '404') {
15032: unlink($file);
15033: }
15034: return -1;
15035: }
15036: if ($info < $fileinfo[9]) {
15037: # nice, the file we have is up-to-date, just say okay
15038: return 'ok';
15039: } else {
15040: # the file is outdated, get rid of it
15041: unlink($file);
15042: }
15043: }
15044: # one way or the other, at this point, we don't have the file
15045: # construct the correct path for the file
15046: my @parts = ($cdom,$cnum);
15047: if ($filename =~ m|^(.+)/[^/]+$|) {
15048: push @parts, split(/\//,$1);
15049: }
15050: my $path = $perlvar{'lonDocRoot'}.'/userfiles';
15051: foreach my $part (@parts) {
15052: $path .= '/'.$part;
15053: if (!-e $path) {
15054: mkdir($path,0770);
15055: }
15056: }
15057: # now the path exists for sure
15058: # get a user agent
15059: my $transferfile=$file.'.in.transfer';
15060: # FIXME: this should flock
15061: if (-e $transferfile) { return 'ok'; }
15062: my $request;
15063: $uri=~s/^\///;
15064: my $homeserver = &homeserver($cnum,$cdom);
15065: my $hostname = &hostname($homeserver);
15066: my $protocol = $protocol{$homeserver};
15067: $protocol = 'http' if ($protocol ne 'https');
15068: $request=new HTTP::Request('GET',$protocol.'://'.$hostname.'/raw/'.$uri);
15069: my $response = &LONCAPA::LWPReq::makerequest($homeserver,$request,$transferfile,\%perlvar,'',0,1);
15070: # did it work?
15071: if ($response->is_error()) {
15072: unlink($transferfile);
15073: &logthis("Userfile repcopy failed for $uri");
15074: return -1;
15075: }
15076: # worked, rename the transfer file
15077: rename($transferfile,$file);
15078: return 'ok';
15079: }
15080:
15081: sub tokenwrapper {
15082: my $uri=shift;
15083: $uri=~s|^https?\://([^/]+)||;
15084: $uri=~s|^/||;
15085: $env{'user.environment'}=~/\/([^\/]+)\.id/;
15086: my $token=$1;
15087: my (undef,$udom,$uname,$file)=split('/',$uri,4);
15088: if ($udom && $uname && $file) {
15089: $file=~s|(\?\.*)*$||;
15090: &appenv({"userfile.$udom/$uname/$file" => $env{'request.course.id'}});
15091: my $homeserver = &homeserver($uname,$udom);
15092: my $hostname = &hostname($homeserver);
15093: my $protocol = $protocol{$homeserver};
15094: $protocol = 'http' if ($protocol ne 'https');
15095: return $protocol.'://'.$hostname.'/'.$uri.
15096: (($uri=~/\?/)?'&':'?').'token='.$token.
15097: '&tokenissued='.$perlvar{'lonHostID'};
15098: } else {
15099: return '/adm/notfound.html';
15100: }
15101: }
15102:
15103: # call with reqtype HEAD: get last modification time
15104: # call with reqtype GET: get the file contents
15105: # Do not call this with reqtype GET for large files! It loads everything into memory
15106: #
15107: sub getuploaded {
15108: my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_;
15109: $uri=~s/^\///;
15110: my $homeserver = &homeserver($cnum,$cdom);
15111: my $hostname = &hostname($homeserver);
15112: my $protocol = $protocol{$homeserver};
15113: $protocol = 'http' if ($protocol ne 'https');
15114: $uri = $protocol.'://'.$hostname.'/raw/'.$uri;
15115: my $request=new HTTP::Request($reqtype,$uri);
15116: my $response=&LONCAPA::LWPReq::makerequest($homeserver,$request,'',\%perlvar,'',0,1);
15117: $$rtncode = $response->code;
15118: if (! $response->is_success()) {
15119: return 'failed';
15120: }
15121: if ($reqtype eq 'HEAD') {
15122: $$info = &HTTP::Date::str2time( $response->header('Last-modified') );
15123: } elsif ($reqtype eq 'GET') {
15124: $$info = $response->content;
15125: }
15126: return 'ok';
15127: }
15128:
15129: sub readfile {
15130: my $file = shift;
15131: if ( (! -e $file ) || ($file eq '') ) { return -1; };
15132: my $fh;
15133: open($fh,"<",$file);
15134: my $a='';
15135: while (my $line = <$fh>) { $a .= $line; }
15136: return $a;
15137: }
15138:
15139: sub filelocation {
15140: my ($dir,$file) = @_;
15141: my $location;
15142: $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
15143:
15144: if ($file =~ m-^/adm/-) {
15145: $file=~s-^/adm/wrapper/-/-;
15146: $file=~s-^/adm/coursedocs/showdoc/-/-;
15147: }
15148:
15149: if ($file =~ m-^\Q$Apache::lonnet::perlvar{'lonTabDir'}\E/-) {
15150: $location = $file;
15151: } elsif ($file=~/^\/*(uploaded|editupload)/) { # is an uploaded file
15152: my ($udom,$uname,$filename)=
15153: ($file=~m -^/+(?:uploaded|editupload)/+($match_domain)/+($match_name)/+(.*)$-);
15154: my $home=&homeserver($uname,$udom);
15155: my $is_me=0;
15156: my @ids=¤t_machine_ids();
15157: foreach my $id (@ids) { if ($id eq $home) { $is_me=1; } }
15158: if ($is_me) {
15159: $location=propath($udom,$uname).'/userfiles/'.$filename;
15160: } else {
15161: $location=$Apache::lonnet::perlvar{'lonDocRoot'}.'/userfiles/'.
15162: $udom.'/'.$uname.'/'.$filename;
15163: }
15164: } elsif ($file =~ m-^/adm/-) {
15165: $location = $perlvar{'lonDocRoot'}.'/'.$file;
15166: } else {
15167: $file=~s/^\Q$perlvar{'lonDocRoot'}\E//;
15168: $file=~s:^/(res|priv)/:/:;
15169: my $space=$1;
15170: if ( !( $file =~ m:^/:) ) {
15171: $location = $dir. '/'.$file;
15172: } else {
15173: $location = $perlvar{'lonDocRoot'}.'/'.$space.$file;
15174: }
15175: }
15176: $location=~s://+:/:g; # remove duplicate /
15177: while ($location=~m{/\.\./}) {
15178: if ($location =~ m{/[^/]+/\.\./}) {
15179: $location=~ s{/[^/]+/\.\./}{/}g;
15180: } else {
15181: $location=~ s{/\.\./}{/}g;
15182: }
15183: } #remove dir/..
15184: while ($location=~m:/\./:) {$location=~ s:/\./:/:g;} #remove /./
15185: return $location;
15186: }
15187:
15188: sub hreflocation {
15189: my ($dir,$file)=@_;
15190: unless (($file=~m-^https?\://-i) || ($file=~m-^/-)) {
15191: $file=filelocation($dir,$file);
15192: } elsif ($file=~m-^/adm/-) {
15193: $file=~s-^/adm/wrapper/-/-;
15194: $file=~s-^/adm/coursedocs/showdoc/-/-;
15195: }
15196: if ($file=~m-^\Q$perlvar{'lonDocRoot'}\E-) {
15197: $file=~s-^\Q$perlvar{'lonDocRoot'}\E--;
15198: } elsif ($file=~m-^\Q$perlvar{'lonUsersDir'}\E-) {
15199: $file=~s{^/home/httpd/lonUsers/($match_domain)/./././($match_name)/userfiles/}
15200: {/uploaded/$1/$2/}x;
15201: }
15202: if ($file=~ m{^/userfiles/}) {
15203: $file =~ s{^/userfiles/}{/uploaded/};
15204: }
15205: return $file;
15206: }
15207:
15208:
15209:
15210:
15211:
15212: sub current_machine_domains {
15213: return &machine_domains(&hostname($perlvar{'lonHostID'}));
15214: }
15215:
15216: sub machine_domains {
15217: my ($hostname) = @_;
15218: my @domains;
15219: my %hostname = &all_hostnames();
15220: while( my($id, $name) = each(%hostname)) {
15221: # &logthis("-$id-$name-$hostname-");
15222: if ($hostname eq $name) {
15223: push(@domains,&host_domain($id));
15224: }
15225: }
15226: return @domains;
15227: }
15228:
15229: sub current_machine_ids {
15230: return &machine_ids(&hostname($perlvar{'lonHostID'}));
15231: }
15232:
15233: sub machine_ids {
15234: my ($hostname) = @_;
15235: $hostname ||= &hostname($perlvar{'lonHostID'});
15236: my @ids;
15237: my %name_to_host = &all_names();
15238: if (ref($name_to_host{$hostname}) eq 'ARRAY') {
15239: return @{ $name_to_host{$hostname} };
15240: }
15241: return;
15242: }
15243:
15244: sub additional_machine_domains {
15245: my @domains;
15246: if (-e "$perlvar{'lonTabDir'}/expected_domains.tab") {
15247: if (open(my $fh,"<","$perlvar{'lonTabDir'}/expected_domains.tab")) {
15248: while (my $line = <$fh>) {
15249: chomp($line);
15250: $line =~ s/\s//g;
15251: push(@domains,$line);
15252: }
15253: close($fh);
15254: }
15255: }
15256: return @domains;
15257: }
15258:
15259: sub default_login_domain {
15260: my $domain = $perlvar{'lonDefDomain'};
15261: my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0];
15262: foreach my $posdom (¤t_machine_domains(),
15263: &additional_machine_domains()) {
15264: if (lc($posdom) eq lc($testdomain)) {
15265: $domain=$posdom;
15266: last;
15267: }
15268: }
15269: return $domain;
15270: }
15271:
15272: sub shared_institution {
15273: my ($dom,$lonhost) = @_;
15274: if ($lonhost eq '') {
15275: $lonhost = $perlvar{'lonHostID'};
15276: }
15277: my $same_intdom;
15278: my $hostintdom = &internet_dom($lonhost);
15279: if ($hostintdom ne '') {
15280: my %iphost = &get_iphost();
15281: my $primary_id = &domain($dom,'primary');
15282: my $primary_ip = &get_host_ip($primary_id);
15283: if (ref($iphost{$primary_ip}) eq 'ARRAY') {
15284: foreach my $id (@{$iphost{$primary_ip}}) {
15285: my $intdom = &internet_dom($id);
15286: if ($intdom eq $hostintdom) {
15287: $same_intdom = 1;
15288: last;
15289: }
15290: }
15291: }
15292: }
15293: return $same_intdom;
15294: }
15295:
15296: sub uses_sts {
15297: my ($ignore_cache) = @_;
15298: my $lonhost = $perlvar{'lonHostID'};
15299: my $hostname = &hostname($lonhost);
15300: my $sts_on;
15301: if ($protocol{$lonhost} eq 'https') {
15302: my $cachetime = 12*3600;
15303: if (!$ignore_cache) {
15304: ($sts_on,my $cached)=&is_cached_new('stspolicy',$lonhost);
15305: if (defined($cached)) {
15306: return $sts_on;
15307: }
15308: }
15309: my $url = $protocol{$lonhost}.'://'.$hostname.'/index.html';
15310: my $request=new HTTP::Request('HEAD',$url);
15311: my $response=&LONCAPA::LWPReq::makerequest($lonhost,$request,'',\%perlvar,'','','',1);
15312: if ($response->is_success) {
15313: my $has_sts = $response->header('Strict-Transport-Security');
15314: if ($has_sts eq '') {
15315: $sts_on = 0;
15316: } else {
15317: if ($has_sts =~ /\Qmax-age=\E(\d+)/) {
15318: my $maxage = $1;
15319: if ($maxage) {
15320: $sts_on = 1;
15321: } else {
15322: $sts_on = 0;
15323: }
15324: } else {
15325: $sts_on = 0;
15326: }
15327: }
15328: return &do_cache_new('stspolicy',$lonhost,$sts_on,$cachetime);
15329: }
15330: }
15331: return;
15332: }
15333:
15334: sub waf_allssl {
15335: my ($host_name) = @_;
15336: my $alias = &get_proxy_alias();
15337: if ($host_name eq '') {
15338: $host_name = $ENV{'SERVER_NAME'};
15339: }
15340: if (($host_name ne '') && ($alias eq $host_name)) {
15341: my $serverhomedom = &host_domain($perlvar{'lonHostID'});
15342: my %defdomdefaults = &get_domain_defaults($serverhomedom);
15343: if ($defdomdefaults{'waf_sslopt'}) {
15344: return $defdomdefaults{'waf_sslopt'};
15345: }
15346: }
15347: return;
15348: }
15349:
15350: sub get_requestor_ip {
15351: my ($r,$nolookup,$noproxy) = @_;
15352: my $from_ip;
15353: if (ref($r)) {
15354: if ($r->can('useragent_ip')) {
15355: if ($noproxy && $r->can('client_ip')) {
15356: $from_ip = $r->client_ip();
15357: } else {
15358: $from_ip = $r->useragent_ip();
15359: }
15360: } elsif ($r->connection->can('remote_ip')) {
15361: $from_ip = $r->connection->remote_ip();
15362: } else {
15363: $from_ip = $r->get_remote_host($nolookup);
15364: }
15365: } else {
15366: $from_ip = $ENV{'REMOTE_ADDR'};
15367: }
15368: return $from_ip if ($noproxy);
15369: # Who controls proxy settings for server
15370: my $dom_in_use = $Apache::lonnet::perlvar{'lonDefDomain'};
15371: my $proxyinfo = &get_proxy_settings($dom_in_use);
15372: if ((ref($proxyinfo) eq 'HASH') && ($from_ip)) {
15373: if ($proxyinfo->{'vpnint'}) {
15374: if (&ip_match($from_ip,$proxyinfo->{'vpnint'})) {
15375: return $from_ip;
15376: }
15377: }
15378: if ($proxyinfo->{'trusted'}) {
15379: if (&ip_match($from_ip,$proxyinfo->{'trusted'})) {
15380: my $ipheader = $proxyinfo->{'ipheader'};
15381: my ($ip,$xfor);
15382: if (ref($r)) {
15383: if ($ipheader) {
15384: $ip = $r->headers_in->{$ipheader};
15385: }
15386: $xfor = $r->headers_in->{'X-Forwarded-For'};
15387: } else {
15388: if ($ipheader) {
15389: $ip = $ENV{'HTTP_'.uc($ipheader)};
15390: }
15391: $xfor = $ENV{'HTTP_X_FORWARDED_FOR'};
15392: }
15393: if (($ip eq '') && ($xfor ne '')) {
15394: foreach my $poss_ip (reverse(split(/\s*,\s*/,$xfor))) {
15395: unless (&ip_match($poss_ip,$proxyinfo->{'trusted'})) {
15396: $ip = $poss_ip;
15397: last;
15398: }
15399: }
15400: }
15401: if ($ip ne '') {
15402: return $ip;
15403: }
15404: }
15405: }
15406: }
15407: return $from_ip;
15408: }
15409:
15410: sub get_proxy_settings {
15411: my ($dom_in_use) = @_;
15412: my %domdefaults = &get_domain_defaults($dom_in_use);
15413: my $proxyinfo = {
15414: ipheader => $domdefaults{'waf_ipheader'},
15415: trusted => $domdefaults{'waf_trusted'},
15416: vpnint => $domdefaults{'waf_vpnint'},
15417: vpnext => $domdefaults{'waf_vpnext'},
15418: sslopt => $domdefaults{'waf_sslopt'},
15419: };
15420: return $proxyinfo;
15421: }
15422:
15423: sub ip_match {
15424: my ($ip,$pattern_str) = @_;
15425: $ip=Net::CIDR::cidrvalidate($ip);
15426: if ($ip) {
15427: return Net::CIDR::cidrlookup($ip,split(/\s*,\s*/,$pattern_str));
15428: }
15429: return;
15430: }
15431:
15432: sub get_proxy_alias {
15433: my ($lonid) = @_;
15434: if ($lonid eq '') {
15435: $lonid = $perlvar{'lonHostID'};
15436: }
15437: if (!defined(&hostname($lonid))) {
15438: return;
15439: }
15440: if ($lonid ne '') {
15441: my ($alias,$cached) = &is_cached_new('proxyalias',$lonid);
15442: if ($cached) {
15443: return $alias;
15444: }
15445: my $dom = &host_domain($lonid);
15446: if ($dom ne '') {
15447: my $cachetime = 60*60*24;
15448: my %domconfig =
15449: &get_dom('configuration',['wafproxy'],$dom);
15450: if (ref($domconfig{'wafproxy'}) eq 'HASH') {
15451: if (ref($domconfig{'wafproxy'}{'alias'}) eq 'HASH') {
15452: $alias = $domconfig{'wafproxy'}{'alias'}{$lonid};
15453: }
15454: }
15455: return &do_cache_new('proxyalias',$lonid,$alias,$cachetime);
15456: }
15457: }
15458: return;
15459: }
15460:
15461: sub use_proxy_alias {
15462: my ($r,$lonid) = @_;
15463: my $alias = &get_proxy_alias($lonid);
15464: if ($alias) {
15465: my $dom = &host_domain($lonid);
15466: if ($dom ne '') {
15467: my $proxyinfo = &get_proxy_settings($dom);
15468: my ($vpnint,$remote_ip);
15469: if (ref($proxyinfo) eq 'HASH') {
15470: $vpnint = $proxyinfo->{'vpnint'};
15471: if ($vpnint) {
15472: $remote_ip = &get_requestor_ip($r,1,1);
15473: }
15474: }
15475: unless ($vpnint && &ip_match($remote_ip,$vpnint)) {
15476: return $alias;
15477: }
15478: }
15479: }
15480: return;
15481: }
15482:
15483: sub alias_sso {
15484: my ($lonid) = @_;
15485: if ($lonid eq '') {
15486: $lonid = $perlvar{'lonHostID'};
15487: }
15488: if (!defined(&hostname($lonid))) {
15489: return;
15490: }
15491: if ($lonid ne '') {
15492: my ($use_alias,$cached) = &is_cached_new('proxysaml',$lonid);
15493: if ($cached) {
15494: return $use_alias;
15495: }
15496: my $dom = &host_domain($lonid);
15497: if ($dom ne '') {
15498: my $cachetime = 60*60*24;
15499: my %domconfig =
15500: &get_dom('configuration',['wafproxy'],$dom);
15501: if (ref($domconfig{'wafproxy'}) eq 'HASH') {
15502: if (ref($domconfig{'wafproxy'}{'saml'}) eq 'HASH') {
15503: $use_alias = $domconfig{'wafproxy'}{'saml'}{$lonid};
15504: }
15505: }
15506: return &do_cache_new('proxysaml',$lonid,$use_alias,$cachetime);
15507: }
15508: }
15509: return;
15510: }
15511:
15512: sub get_saml_landing {
15513: my ($lonid) = @_;
15514: if ($lonid eq '') {
15515: my $defdom = &default_login_domain();
15516: my @hosts = ¤t_machine_ids();
15517: if (@hosts > 1) {
15518: foreach my $hostid (@hosts) {
15519: if (&host_domain($hostid) eq $defdom) {
15520: $lonid = $hostid;
15521: last;
15522: }
15523: }
15524: } else {
15525: $lonid = $perlvar{'lonHostID'};
15526: }
15527: if ($lonid) {
15528: unless (&host_domain($lonid) eq $defdom) {
15529: return;
15530: }
15531: } else {
15532: return;
15533: }
15534: } elsif (!defined(&hostname($lonid))) {
15535: return;
15536: }
15537: my ($landing,$cached) = &is_cached_new('samllanding',$lonid);
15538: if ($cached) {
15539: return $landing;
15540: }
15541: my $dom = &host_domain($lonid);
15542: if ($dom ne '') {
15543: my $cachetime = 60*60*24;
15544: my %domconfig =
15545: &get_dom('configuration',['login'],$dom);
15546: if (ref($domconfig{'login'}) eq 'HASH') {
15547: if (ref($domconfig{'login'}{'saml'}) eq 'HASH') {
15548: if (ref($domconfig{'login'}{'saml'}{$lonid}) eq 'HASH') {
15549: $landing = 1;
15550: }
15551: }
15552: }
15553: return &do_cache_new('samllanding',$lonid,$landing,$cachetime);
15554: }
15555: return;
15556: }
15557:
15558: # ------------------------------------------------------------- Declutters URLs
15559:
15560: sub declutter {
15561: my $thisfn=shift;
15562: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
15563: unless ($thisfn=~m{^/home/httpd/html/priv/}) {
15564: $thisfn=~s{^/home/httpd/html}{};
15565: }
15566: $thisfn=~s/^\///;
15567: $thisfn=~s|^adm/wrapper/||;
15568: $thisfn=~s|^adm/coursedocs/showdoc/||;
15569: $thisfn=~s/^res\///;
15570: $thisfn=~s/^priv\///;
15571: unless (($thisfn =~ /^ext/) || ($thisfn =~ /\.(page|sequence)___\d+___ext/)) {
15572: $thisfn=~s/\?.+$//;
15573: }
15574: return $thisfn;
15575: }
15576:
15577: # ------------------------------------------------------------- Clutter up URLs
15578:
15579: sub clutter {
15580: my $thisfn='/'.&declutter(shift);
15581: if ($thisfn !~ m{^/(uploaded|editupload|adm|userfiles|ext|raw|priv|public)/}
15582: || $thisfn =~ m{^/adm/(includes|pages)} ) {
15583: $thisfn='/res'.$thisfn;
15584: }
15585: if ($thisfn !~m|^/adm|) {
15586: if ($thisfn =~ m|^/ext/|) {
15587: $thisfn='/adm/wrapper'.$thisfn;
15588: } else {
15589: my ($ext) = ($thisfn =~ /\.(\w+)$/);
15590: my $embstyle=&Apache::loncommon::fileembstyle($ext);
15591: if ($embstyle eq 'ssi'
15592: || ($embstyle eq 'hdn')
15593: || ($embstyle eq 'rat')
15594: || ($embstyle eq 'prv')
15595: || ($embstyle eq 'ign')) {
15596: #do nothing with these
15597: } elsif (($embstyle eq 'img')
15598: || ($embstyle eq 'emb')
15599: || ($embstyle eq 'wrp')) {
15600: $thisfn='/adm/wrapper'.$thisfn;
15601: } elsif ($embstyle eq 'unk'
15602: && $thisfn!~/\.(sequence|page)$/) {
15603: $thisfn='/adm/coursedocs/showdoc'.$thisfn;
15604: } else {
15605: # &logthis("Got a blank emb style");
15606: }
15607: }
15608: } elsif ($thisfn =~ m{^/adm/$match_domain/$match_courseid/\d+/ext\.tool$}) {
15609: $thisfn='/adm/wrapper'.$thisfn;
15610: }
15611: return $thisfn;
15612: }
15613:
15614: sub clutter_with_no_wrapper {
15615: my $uri = &clutter(shift);
15616: if ($uri =~ m-^/adm/-) {
15617: $uri =~ s-^/adm/wrapper/-/-;
15618: $uri =~ s-^/adm/coursedocs/showdoc/-/-;
15619: }
15620: return $uri;
15621: }
15622:
15623: sub freeze_escape {
15624: my ($value)=@_;
15625: if (ref($value)) {
15626: $value=&nfreeze($value);
15627: return '__FROZEN__'.&escape($value);
15628: }
15629: return &escape($value);
15630: }
15631:
15632:
15633: sub thaw_unescape {
15634: my ($value)=@_;
15635: if ($value =~ /^__FROZEN__/) {
15636: substr($value,0,10,undef);
15637: $value=&unescape($value);
15638: return &thaw($value);
15639: }
15640: return &unescape($value);
15641: }
15642:
15643: sub correct_line_ends {
15644: my ($result)=@_;
15645: $$result =~s/\r\n/\n/mg;
15646: $$result =~s/\r/\n/mg;
15647: }
15648: # ================================================================ Main Program
15649:
15650: sub goodbye {
15651: &logthis("Starting Shut down");
15652: #not converted to using infrastruture and probably shouldn't be
15653: &logthis(sprintf("%-20s is %s",'%badServerCache',length(&nfreeze(\%badServerCache))));
15654: #converted
15655: # &logthis(sprintf("%-20s is %s",'%metacache',scalar(%metacache)));
15656: &logthis(sprintf("%-20s is %s",'%homecache',length(&nfreeze(\%homecache))));
15657: # &logthis(sprintf("%-20s is %s",'%titlecache',length(&nfreeze(\%titlecache))));
15658: # &logthis(sprintf("%-20s is %s",'%courseresdatacache',length(&nfreeze(\%courseresdatacache))));
15659: #1.1 only
15660: # &logthis(sprintf("%-20s is %s",'%userresdatacache',length(&nfreeze(\%userresdatacache))));
15661: # &logthis(sprintf("%-20s is %s",'%getsectioncache',length(&nfreeze(\%getsectioncache))));
15662: # &logthis(sprintf("%-20s is %s",'%courseresversioncache',length(&nfreeze(\%courseresversioncache))));
15663: # &logthis(sprintf("%-20s is %s",'%resversioncache',length(&nfreeze(\%resversioncache))));
15664: &logthis(sprintf("%-20s is %s",'%remembered',length(&nfreeze(\%remembered))));
15665: &logthis(sprintf("%-20s is %s",'kicks',$kicks));
15666: &logthis(sprintf("%-20s is %s",'hits',$hits));
15667: &flushcourselogs();
15668: &logthis("Shutting down");
15669: }
15670:
15671: sub get_dns {
15672: my ($url,$func,$ignore_cache,$nocache,$hashref) = @_;
15673: if (!$ignore_cache) {
15674: my ($content,$cached)=
15675: &is_cached_new('dns',$url);
15676: if ($cached) {
15677: &$func($content,$hashref);
15678: return;
15679: }
15680: }
15681:
15682: my %alldns;
15683: if (open(my $config,"<","$perlvar{'lonTabDir'}/hosts.tab")) {
15684: foreach my $dns (<$config>) {
15685: next if ($dns !~ /^\^(\S*)/x);
15686: my $line = $1;
15687: my ($host,$protocol) = split(/:/,$line);
15688: if ($protocol ne 'https') {
15689: $protocol = 'http';
15690: }
15691: $alldns{$host} = $protocol;
15692: }
15693: close($config);
15694: }
15695: while (%alldns) {
15696: my ($dns) = sort { $b cmp $a } keys(%alldns);
15697: my ($contents,@content);
15698: if ($dns eq Sys::Hostname::FQDN::fqdn()) {
15699: my $command = (split('/',$url))[3];
15700: my ($dir,$file) = &parse_getdns_url($command,$url);
15701: delete($alldns{$dns});
15702: next if (($dir eq '') || ($file eq ''));
15703: if (open(my $config,'<',"$dir/$file")) {
15704: @content = <$config>;
15705: close($config);
15706: }
15707: if ($url eq '/adm/dns/loncapaCRL') {
15708: $contents = join('',@content);
15709: }
15710: } else {
15711: my $request=new HTTP::Request('GET',"$alldns{$dns}://$dns$url");
15712: my $response = &LONCAPA::LWPReq::makerequest('',$request,'',\%perlvar,30,0);
15713: delete($alldns{$dns});
15714: next if ($response->is_error());
15715: if ($url eq '/adm/dns/loncapaCRL') {
15716: $contents = $response->content;
15717: } else {
15718: @content = split("\n",$response->content);
15719: }
15720: }
15721: if ($url eq '/adm/dns/loncapaCRL') {
15722: return &$func($contents);
15723: } else {
15724: unless ($nocache) {
15725: &do_cache_new('dns',$url,\@content,30*24*60*60);
15726: }
15727: &$func(\@content,$hashref);
15728: return;
15729: }
15730: }
15731: my $which = (split('/',$url,4))[3];
15732: if ($which eq 'loncapaCRL') {
15733: my $diskfile = "$perlvar{'lonCertificateDirectory'}/$perlvar{'lonnetCertRevocationList'}";
15734: if (-e $diskfile) {
15735: &logthis("unable to contact DNS, on disk file $diskfile not updated");
15736: } else {
15737: &logthis("unable to contact DNS, no on disk file $diskfile available");
15738: }
15739: } else {
15740: &logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n");
15741: if (open(my $config,"<","$perlvar{'lonTabDir'}/dns_$which.tab")) {
15742: my @content = <$config>;
15743: close($config);
15744: &$func(\@content,$hashref);
15745: }
15746: }
15747: return;
15748: }
15749:
15750: # ------------------------------------------------------Get DNS checksums file
15751: sub parse_dns_checksums_tab {
15752: my ($lines,$hashref) = @_;
15753: my $lonhost = $perlvar{'lonHostID'};
15754: my $machine_dom = &host_domain($lonhost);
15755: my $loncaparev = &get_server_loncaparev($machine_dom);
15756: my $distro = (split(/\:/,&get_server_distarch($lonhost)))[0];
15757: my $webconfdir = '/etc/httpd/conf';
15758: if ($distro =~ /^(ubuntu|debian)(\d+)$/) {
15759: $webconfdir = '/etc/apache2';
15760: } elsif ($distro =~ /^sles(\d+)$/) {
15761: if ($1 >= 10) {
15762: $webconfdir = '/etc/apache2';
15763: }
15764: } elsif ($distro =~ /^suse(\d+\.\d+)$/) {
15765: if ($1 >= 10.0) {
15766: $webconfdir = '/etc/apache2';
15767: }
15768: }
15769: my ($release,$timestamp) = split(/\-/,$loncaparev);
15770: my (%chksum,%revnum);
15771: if (ref($lines) eq 'ARRAY') {
15772: chomp(@{$lines});
15773: my $version = shift(@{$lines});
15774: if ($version eq $release) {
15775: foreach my $line (@{$lines}) {
15776: my ($file,$version,$shasum) = split(/,/,$line);
15777: if ($file =~ m{^/etc/httpd/conf}) {
15778: if ($webconfdir eq '/etc/apache2') {
15779: $file =~ s{^\Q/etc/httpd/conf/\E}{$webconfdir/};
15780: }
15781: }
15782: $chksum{$file} = $shasum;
15783: $revnum{$file} = $version;
15784: }
15785: if (ref($hashref) eq 'HASH') {
15786: %{$hashref} = (
15787: sums => \%chksum,
15788: versions => \%revnum,
15789: );
15790: }
15791: }
15792: }
15793: return;
15794: }
15795:
15796: sub fetch_dns_checksums {
15797: my %checksums;
15798: my $machine_dom = &host_domain($perlvar{'lonHostID'});
15799: my $loncaparev = &get_server_loncaparev($machine_dom,$perlvar{'lonHostID'});
15800: my ($release,$timestamp) = split(/\-/,$loncaparev);
15801: &get_dns("/adm/dns/checksums/$release",\&parse_dns_checksums_tab,1,1,
15802: \%checksums);
15803: return \%checksums;
15804: }
15805:
15806: sub fetch_crl_pemfile {
15807: return &get_dns("/adm/dns/loncapaCRL",\&save_crl_pem,1,1);
15808: }
15809:
15810: sub save_crl_pem {
15811: my ($content) = @_;
15812: my ($msg,$hadchanges);
15813: if ($content ne '') {
15814: my $now = time;
15815: my $lonca = $perlvar{'lonCertificateDirectory'}.'/'.$perlvar{'lonnetCertificateAuthority'};
15816: my $tmpcrl = $tmpdir.'/'.$perlvar{'lonnetCertRevocationList'}.'_'.$now.'.'.$$.'.tmp';
15817: if (open(my $fh,'>',"$tmpcrl")) {
15818: print $fh $content;
15819: close($fh);
15820: if (-e $lonca) {
15821: if (open(PIPE,"openssl crl -in $tmpcrl -inform pem -CAfile $lonca -noout 2>&1 |")) {
15822: my $check = <PIPE>;
15823: close(PIPE);
15824: chomp($check);
15825: if ($check eq 'verify OK') {
15826: my $dest = "$perlvar{'lonCertificateDirectory'}/$perlvar{'lonnetCertRevocationList'}";
15827: my $backup;
15828: if (-e $dest) {
15829: if (&File::Copy::move($dest,"$dest.bak")) {
15830: $backup = 'ok';
15831: }
15832: }
15833: if (&File::Copy::move($tmpcrl,$dest)) {
15834: $msg = 'ok';
15835: if ($backup) {
15836: my (%oldnums,%newnums);
15837: if (open(PIPE, "openssl crl -inform PEM -text -noout -in $dest.bak |grep 'Serial Number' |")) {
15838: while (<PIPE>) {
15839: $oldnums{(split(/:/))[1]} = 1;
15840: }
15841: close(PIPE);
15842: }
15843: if (open(PIPE, "openssl crl -inform PEM -text -noout -in $dest |grep 'Serial Number' |")) {
15844: while(<PIPE>) {
15845: $newnums{(split(/:/))[1]} = 1;
15846: }
15847: close(PIPE);
15848: }
15849: foreach my $key (sort {$b <=> $a } (keys(%newnums))) {
15850: unless (exists($oldnums{$key})) {
15851: $hadchanges = 1;
15852: last;
15853: }
15854: }
15855: unless ($hadchanges) {
15856: foreach my $key (sort {$b <=> $a } (keys(%oldnums))) {
15857: unless (exists($newnums{$key})) {
15858: $hadchanges = 1;
15859: last;
15860: }
15861: }
15862: }
15863: }
15864: }
15865: } else {
15866: unlink($tmpcrl);
15867: }
15868: } else {
15869: unlink($tmpcrl);
15870: }
15871: } else {
15872: unlink($tmpcrl);
15873: }
15874: }
15875: }
15876: return ($msg,$hadchanges);
15877: }
15878:
15879: sub parse_getdns_url {
15880: my ($command,$url) = @_;
15881: my $dir = $perlvar{'lonTabDir'};
15882: my $file;
15883: if ($command eq 'hosts') {
15884: $file = 'dns_hosts.tab';
15885: } elsif ($command eq 'domain') {
15886: $file = 'dns_domain.tab';
15887: } elsif ($command eq 'checksums') {
15888: my $version = (split('/',$url))[4];
15889: $file = "dns_checksums/$version.tab",
15890: } elsif ($command eq 'loncapaCRL') {
15891: $dir = $perlvar{'lonCertificateDirectory'};
15892: $file = $perlvar{'lonnetCertRevocationList'};
15893: }
15894: return ($dir,$file);
15895: }
15896:
15897: # ------------------------------------------------------------ Read domain file
15898: {
15899: my $loaded;
15900: my %domain;
15901:
15902: sub parse_domain_tab {
15903: my ($lines) = @_;
15904: foreach my $line (@$lines) {
15905: next if ($line =~ /^(\#|\s*$ )/x);
15906:
15907: chomp($line);
15908: my ($name,@elements) = split(/:/,$line,9);
15909: my %this_domain;
15910: foreach my $field ('description', 'auth_def', 'auth_arg_def',
15911: 'lang_def', 'city', 'longi', 'lati',
15912: 'primary') {
15913: $this_domain{$field} = shift(@elements);
15914: }
15915: $domain{$name} = \%this_domain;
15916: }
15917: }
15918:
15919: sub reset_domain_info {
15920: undef($loaded);
15921: undef(%domain);
15922: }
15923:
15924: sub load_domain_tab {
15925: my ($ignore_cache,$nocache) = @_;
15926: &get_dns('/adm/dns/domain',\&parse_domain_tab,$ignore_cache,$nocache);
15927: my $fh;
15928: if (open($fh,"<",$perlvar{'lonTabDir'}.'/domain.tab')) {
15929: my @lines = <$fh>;
15930: &parse_domain_tab(\@lines);
15931: }
15932: close($fh);
15933: $loaded = 1;
15934: }
15935:
15936: sub domain {
15937: &load_domain_tab() if (!$loaded);
15938:
15939: my ($name,$what) = @_;
15940: return if ( !exists($domain{$name}) );
15941:
15942: if (!$what) {
15943: return $domain{$name}{'description'};
15944: }
15945: return $domain{$name}{$what};
15946: }
15947:
15948: sub domain_info {
15949: &load_domain_tab() if (!$loaded);
15950: return %domain;
15951: }
15952:
15953: }
15954:
15955:
15956: # ------------------------------------------------------------- Read hosts file
15957: {
15958: my %hostname;
15959: my %hostdom;
15960: my %libserv;
15961: my $loaded;
15962: my %name_to_host;
15963: my %internetdom;
15964: my %LC_dns_serv;
15965:
15966: sub parse_hosts_tab {
15967: my ($file) = @_;
15968: foreach my $configline (@$file) {
15969: next if ($configline =~ /^(\#|\s*$ )/x);
15970: chomp($configline);
15971: if ($configline =~ /^\^/) {
15972: if ($configline =~ /^\^([\w.\-]+)/) {
15973: $LC_dns_serv{$1} = 1;
15974: }
15975: next;
15976: }
15977: my ($id,$domain,$role,$name,$protocol,$intdom)=split(/:/,$configline);
15978: $name=~s/\s//g;
15979: if ($id && $domain && $role && $name) {
15980: if ((exists($hostname{$id})) && ($hostname{$id} ne '')) {
15981: my $curr = $hostname{$id};
15982: my $skip;
15983: if (ref($name_to_host{$curr}) eq 'ARRAY') {
15984: if (($curr eq $name) && (@{$name_to_host{$curr}} == 1)) {
15985: $skip = 1;
15986: } else {
15987: @{$name_to_host{$curr}} = grep { $_ ne $id } @{$name_to_host{$curr}};
15988: }
15989: }
15990: unless ($skip) {
15991: push(@{$name_to_host{$name}},$id);
15992: }
15993: } else {
15994: push(@{$name_to_host{$name}},$id);
15995: }
15996: $hostname{$id}=$name;
15997: $hostdom{$id}=$domain;
15998: if ($role eq 'library') { $libserv{$id}=$name; }
15999: if (defined($protocol)) {
16000: if ($protocol eq 'https') {
16001: $protocol{$id} = $protocol;
16002: } else {
16003: $protocol{$id} = 'http';
16004: }
16005: } else {
16006: $protocol{$id} = 'http';
16007: }
16008: if (defined($intdom)) {
16009: $internetdom{$id} = $intdom;
16010: }
16011: }
16012: }
16013: }
16014:
16015: sub reset_hosts_info {
16016: &purge_remembered();
16017: &reset_domain_info();
16018: &reset_hosts_ip_info();
16019: undef(%internetdom);
16020: undef(%name_to_host);
16021: undef(%hostname);
16022: undef(%hostdom);
16023: undef(%libserv);
16024: undef($loaded);
16025: }
16026:
16027: sub load_hosts_tab {
16028: my ($ignore_cache,$nocache) = @_;
16029: &get_dns('/adm/dns/hosts',\&parse_hosts_tab,$ignore_cache,$nocache);
16030: open(my $config,"<","$perlvar{'lonTabDir'}/hosts.tab");
16031: my @config = <$config>;
16032: &parse_hosts_tab(\@config);
16033: close($config);
16034: $loaded=1;
16035: }
16036:
16037: sub hostname {
16038: &load_hosts_tab() if (!$loaded);
16039:
16040: my ($lonid) = @_;
16041: return $hostname{$lonid};
16042: }
16043:
16044: sub all_hostnames {
16045: &load_hosts_tab() if (!$loaded);
16046:
16047: return %hostname;
16048: }
16049:
16050: sub all_names {
16051: my ($ignore_cache,$nocache) = @_;
16052: &load_hosts_tab($ignore_cache,$nocache) if (!$loaded);
16053:
16054: return %name_to_host;
16055: }
16056:
16057: sub all_host_domain {
16058: &load_hosts_tab() if (!$loaded);
16059: return %hostdom;
16060: }
16061:
16062: sub all_host_intdom {
16063: &load_hosts_tab() if (!$loaded);
16064: return %internetdom;
16065: }
16066:
16067: sub is_library {
16068: &load_hosts_tab() if (!$loaded);
16069:
16070: return exists($libserv{$_[0]});
16071: }
16072:
16073: sub all_library {
16074: &load_hosts_tab() if (!$loaded);
16075:
16076: return %libserv;
16077: }
16078:
16079: sub unique_library {
16080: #2x reverse removes all hostnames that appear more than once
16081: my %unique = reverse &all_library();
16082: return reverse %unique;
16083: }
16084:
16085: sub get_servers {
16086: &load_hosts_tab() if (!$loaded);
16087:
16088: my ($domain,$type) = @_;
16089: my %possible_hosts = ($type eq 'library') ? %libserv
16090: : %hostname;
16091: my %result;
16092: if (ref($domain) eq 'ARRAY') {
16093: while ( my ($host,$hostname) = each(%possible_hosts)) {
16094: if (grep(/^\Q$hostdom{$host}\E$/,@$domain)) {
16095: $result{$host} = $hostname;
16096: }
16097: }
16098: } else {
16099: while ( my ($host,$hostname) = each(%possible_hosts)) {
16100: if ($hostdom{$host} eq $domain) {
16101: $result{$host} = $hostname;
16102: }
16103: }
16104: }
16105: return %result;
16106: }
16107:
16108: sub get_unique_servers {
16109: my %unique = reverse &get_servers(@_);
16110: return reverse %unique;
16111: }
16112:
16113: sub host_domain {
16114: &load_hosts_tab() if (!$loaded);
16115:
16116: my ($lonid) = @_;
16117: return $hostdom{$lonid};
16118: }
16119:
16120: sub all_domains {
16121: &load_hosts_tab() if (!$loaded);
16122:
16123: my %seen;
16124: my @uniq = grep(!$seen{$_}++, values(%hostdom));
16125: return @uniq;
16126: }
16127:
16128: sub internet_dom {
16129: &load_hosts_tab() if (!$loaded);
16130:
16131: my ($lonid) = @_;
16132: return $internetdom{$lonid};
16133: }
16134:
16135: sub is_LC_dns {
16136: &load_hosts_tab() if (!$loaded);
16137:
16138: my ($hostname) = @_;
16139: return exists($LC_dns_serv{$hostname});
16140: }
16141:
16142: }
16143:
16144: {
16145: my %iphost;
16146: my %name_to_ip;
16147: my %lonid_to_ip;
16148:
16149: sub get_hosts_from_ip {
16150: my ($ip) = @_;
16151: my %iphosts = &get_iphost();
16152: if (ref($iphosts{$ip})) {
16153: return @{$iphosts{$ip}};
16154: }
16155: return;
16156: }
16157:
16158: sub reset_hosts_ip_info {
16159: undef(%iphost);
16160: undef(%name_to_ip);
16161: undef(%lonid_to_ip);
16162: }
16163:
16164: sub get_host_ip {
16165: my ($lonid) = @_;
16166: if (exists($lonid_to_ip{$lonid})) {
16167: return $lonid_to_ip{$lonid};
16168: }
16169: my $name=&hostname($lonid);
16170: my $ip = gethostbyname($name);
16171: return if (!$ip || length($ip) ne 4);
16172: $ip=inet_ntoa($ip);
16173: $name_to_ip{$name} = $ip;
16174: $lonid_to_ip{$lonid} = $ip;
16175: return $ip;
16176: }
16177:
16178: sub get_iphost {
16179: my ($ignore_cache,$nocache) = @_;
16180:
16181: if (!$ignore_cache) {
16182: if (%iphost) {
16183: return %iphost;
16184: }
16185: my ($ip_info,$cached)=
16186: &is_cached_new('iphost','iphost');
16187: if ($cached) {
16188: %iphost = %{$ip_info->[0]};
16189: %name_to_ip = %{$ip_info->[1]};
16190: %lonid_to_ip = %{$ip_info->[2]};
16191: return %iphost;
16192: }
16193: }
16194:
16195: # get yesterday's info for fallback
16196: my %old_name_to_ip;
16197: my ($ip_info,$cached)=
16198: &is_cached_new('iphost','iphost');
16199: if ($cached) {
16200: %old_name_to_ip = %{$ip_info->[1]};
16201: }
16202:
16203: my %name_to_host = &all_names($ignore_cache,$nocache);
16204: foreach my $name (keys(%name_to_host)) {
16205: my $ip;
16206: if (!exists($name_to_ip{$name})) {
16207: $ip = gethostbyname($name);
16208: if (!$ip || length($ip) ne 4) {
16209: if (defined($old_name_to_ip{$name})) {
16210: $ip = $old_name_to_ip{$name};
16211: &logthis("Can't find $name defaulting to old $ip");
16212: } else {
16213: &logthis("Name $name no IP found");
16214: next;
16215: }
16216: } else {
16217: $ip=inet_ntoa($ip);
16218: }
16219: $name_to_ip{$name} = $ip;
16220: } else {
16221: $ip = $name_to_ip{$name};
16222: }
16223: foreach my $id (@{ $name_to_host{$name} }) {
16224: $lonid_to_ip{$id} = $ip;
16225: }
16226: push(@{$iphost{$ip}},@{$name_to_host{$name}});
16227: }
16228: unless ($nocache) {
16229: &do_cache_new('iphost','iphost',
16230: [\%iphost,\%name_to_ip,\%lonid_to_ip],
16231: 48*60*60);
16232: }
16233:
16234: return %iphost;
16235: }
16236:
16237: #
16238: # Given a DNS returns the loncapa host name for that DNS
16239: #
16240: sub host_from_dns {
16241: my ($dns) = @_;
16242: my @hosts;
16243: my $ip;
16244:
16245: if (exists($name_to_ip{$dns})) {
16246: $ip = $name_to_ip{$dns};
16247: }
16248: if (!$ip) {
16249: $ip = gethostbyname($dns); # Initial translation to IP is in net order.
16250: if (length($ip) == 4) {
16251: $ip = &IO::Socket::inet_ntoa($ip);
16252: }
16253: }
16254: if ($ip) {
16255: @hosts = get_hosts_from_ip($ip);
16256: return $hosts[0];
16257: }
16258: return undef;
16259: }
16260:
16261: sub get_internet_names {
16262: my ($lonid) = @_;
16263: return if ($lonid eq '');
16264: my ($idnref,$cached)=
16265: &is_cached_new('internetnames',$lonid);
16266: if ($cached) {
16267: return $idnref;
16268: }
16269: my $ip = &get_host_ip($lonid);
16270: my @hosts = &get_hosts_from_ip($ip);
16271: my %iphost = &get_iphost();
16272: my (@idns,%seen);
16273: foreach my $id (@hosts) {
16274: my $dom = &host_domain($id);
16275: my $prim_id = &domain($dom,'primary');
16276: my $prim_ip = &get_host_ip($prim_id);
16277: next if ($seen{$prim_ip});
16278: if (ref($iphost{$prim_ip}) eq 'ARRAY') {
16279: foreach my $id (@{$iphost{$prim_ip}}) {
16280: my $intdom = &internet_dom($id);
16281: unless (grep(/^\Q$intdom\E$/,@idns)) {
16282: push(@idns,$intdom);
16283: }
16284: }
16285: }
16286: $seen{$prim_ip} = 1;
16287: }
16288: return &do_cache_new('internetnames',$lonid,\@idns,12*60*60);
16289: }
16290:
16291: }
16292:
16293: sub all_loncaparevs {
16294: return qw(1.1 1.2 1.3 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11);
16295: }
16296:
16297: # ---------------------------------------------------------- Read loncaparev table
16298: {
16299: sub load_loncaparevs {
16300: if (-e "$perlvar{'lonTabDir'}/loncaparevs.tab") {
16301: if (open(my $config,"<","$perlvar{'lonTabDir'}/loncaparevs.tab")) {
16302: while (my $configline=<$config>) {
16303: chomp($configline);
16304: my ($hostid,$loncaparev)=split(/:/,$configline);
16305: $loncaparevs{$hostid}=$loncaparev;
16306: }
16307: close($config);
16308: }
16309: }
16310: }
16311: }
16312:
16313: # ---------------------------------------------------------- Read serverhostID table
16314: {
16315: sub load_serverhomeIDs {
16316: if (-e "$perlvar{'lonTabDir'}/serverhomeIDs.tab") {
16317: if (open(my $config,"<","$perlvar{'lonTabDir'}/serverhomeIDs.tab")) {
16318: while (my $configline=<$config>) {
16319: chomp($configline);
16320: my ($name,$id)=split(/:/,$configline);
16321: $serverhomeIDs{$name}=$id;
16322: }
16323: close($config);
16324: }
16325: }
16326: }
16327: }
16328:
16329:
16330: BEGIN {
16331:
16332: # ----------------------------------- Read loncapa.conf and loncapa_apache.conf
16333: unless ($readit) {
16334: {
16335: my $configvars = LONCAPA::Configuration::read_conf('loncapa.conf');
16336: %perlvar = (%perlvar,%{$configvars});
16337: }
16338:
16339:
16340: # ------------------------------------------------------ Read spare server file
16341: {
16342: open(my $config,"<","$perlvar{'lonTabDir'}/spare.tab");
16343:
16344: while (my $configline=<$config>) {
16345: chomp($configline);
16346: if ($configline) {
16347: my ($host,$type) = split(':',$configline,2);
16348: if (!defined($type) || $type eq '') { $type = 'default' };
16349: push(@{ $spareid{$type} }, $host);
16350: }
16351: }
16352: close($config);
16353: }
16354: # ------------------------------------------------------------ Read permissions
16355: {
16356: open(my $config,"<","$perlvar{'lonTabDir'}/roles.tab");
16357:
16358: while (my $configline=<$config>) {
16359: chomp($configline);
16360: if ($configline) {
16361: my ($role,$perm)=split(/ /,$configline);
16362: if ($perm ne '') { $pr{$role}=$perm; }
16363: }
16364: }
16365: close($config);
16366: }
16367:
16368: # -------------------------------------------- Read plain texts for permissions
16369: {
16370: open(my $config,"<","$perlvar{'lonTabDir'}/rolesplain.tab");
16371:
16372: while (my $configline=<$config>) {
16373: chomp($configline);
16374: if ($configline) {
16375: my ($short,@plain)=split(/:/,$configline);
16376: %{$prp{$short}} = ();
16377: if (@plain > 0) {
16378: $prp{$short}{'std'} = $plain[0];
16379: for (my $i=1; $i<@plain; $i++) {
16380: $prp{$short}{'alt'.$i} = $plain[$i];
16381: }
16382: }
16383: }
16384: }
16385: close($config);
16386: }
16387:
16388: # ---------------------------------------------------------- Read package table
16389: {
16390: open(my $config,"<","$perlvar{'lonTabDir'}/packages.tab");
16391:
16392: while (my $configline=<$config>) {
16393: if ($configline !~ /\S/ || $configline=~/^#/) { next; }
16394: chomp($configline);
16395: my ($short,$plain)=split(/:/,$configline);
16396: my ($pack,$name)=split(/\&/,$short);
16397: if ($plain ne '') {
16398: $packagetab{$pack.'&'.$name.'&name'}=$name;
16399: $packagetab{$short}=$plain;
16400: }
16401: }
16402: close($config);
16403: }
16404:
16405: # ---------------------------------------------------------- Read loncaparev table
16406:
16407: &load_loncaparevs();
16408:
16409: # ---------------------------------------------------------- Read serverhostID table
16410:
16411: &load_serverhomeIDs();
16412:
16413: # ---------------------------------------------------------- Read releaseslist XML
16414: {
16415: my $file = $Apache::lonnet::perlvar{'lonTabDir'}.'/releaseslist.xml';
16416: if (-e $file) {
16417: my $parser = HTML::LCParser->new($file);
16418: while (my $token = $parser->get_token()) {
16419: if ($token->[0] eq 'S') {
16420: my $item = $token->[1];
16421: my $name = $token->[2]{'name'};
16422: my $value = $token->[2]{'value'};
16423: my $valuematch = $token->[2]{'valuematch'};
16424: my $namematch = $token->[2]{'namematch'};
16425: if ($item eq 'parameter') {
16426: if (($namematch ne '') || (($name ne '') && ($value ne '' || $valuematch ne ''))) {
16427: my $release = $parser->get_text();
16428: $release =~ s/(^\s*|\s*$ )//gx;
16429: $needsrelease{$item.':'.$name.':'.$value.':'.$valuematch.':'.$namematch} = $release;
16430: }
16431: } elsif ($item ne '' && $name ne '') {
16432: my $release = $parser->get_text();
16433: $release =~ s/(^\s*|\s*$ )//gx;
16434: $needsrelease{$item.':'.$name.':'.$value} = $release;
16435: }
16436: }
16437: }
16438: }
16439: }
16440:
16441: # ---------------------------------------------------------- Read managers table
16442: {
16443: if (-e "$perlvar{'lonTabDir'}/managers.tab") {
16444: if (open(my $config,"<","$perlvar{'lonTabDir'}/managers.tab")) {
16445: while (my $configline=<$config>) {
16446: chomp($configline);
16447: next if ($configline =~ /^\#/);
16448: if (($configline =~ /^[\w\-]+$/) || ($configline =~ /^[\w\-]+\:[\w\-]+$/)) {
16449: $managerstab{$configline} = 1;
16450: }
16451: }
16452: close($config);
16453: }
16454: }
16455: }
16456:
16457: # ------------- set up temporary directory
16458: {
16459: $tmpdir = LONCAPA::tempdir();
16460:
16461: }
16462:
16463: # ------------- set default texengine (domain default overrides this)
16464: {
16465: $deftex = LONCAPA::texengine();
16466: }
16467:
16468: # ------------- set default minimum length for passwords for internal auth users
16469: {
16470: $passwdmin = LONCAPA::passwd_min();
16471: }
16472:
16473: $memcache=new Cache::Memcached({'servers' => ['127.0.0.1:11211'],
16474: 'compress_threshold'=> 20_000,
16475: });
16476:
16477: $processmarker='_'.time.'_'.$perlvar{'lonHostID'};
16478: $dumpcount=0;
16479: $locknum=0;
16480:
16481: &logtouch();
16482: &logthis('<font color="yellow">INFO: Read configuration</font>');
16483: $readit=1;
16484: {
16485: use integer;
16486: my $test=(2**32)+1;
16487: if ($test != 0) { $_64bit=1; } else { $_64bit=0; }
16488: &logthis(" Detected 64bit platform ($_64bit)");
16489: }
16490: }
16491: }
16492:
16493: 1;
16494: __END__
16495:
16496: =pod
16497:
16498: =head1 NAME
16499:
16500: Apache::lonnet - Subroutines to ask questions about things in the network.
16501:
16502: =head1 SYNOPSIS
16503:
16504: Invoked by other LON-CAPA modules, when they need to talk to or about objects in the network.
16505:
16506: &Apache::lonnet::SUBROUTINENAME(ARGUMENTS);
16507:
16508: Common parameters:
16509:
16510: =over 4
16511:
16512: =item *
16513:
16514: $uname : an internal username (if $cname expecting a course Id specifically)
16515:
16516: =item *
16517:
16518: $udom : a domain (if $cdom expecting a course's domain specifically)
16519:
16520: =item *
16521:
16522: $symb : a resource instance identifier
16523:
16524: =item *
16525:
16526: $namespace : the name of a .db file that contains the data needed or
16527: being set.
16528:
16529: =back
16530:
16531: =head1 OVERVIEW
16532:
16533: lonnet provides subroutines which interact with the
16534: lonc/lond (TCP) network layer of LON-CAPA. They can be used to ask
16535: about classes, users, and resources.
16536:
16537: For many of these objects you can also use this to store data about
16538: them or modify them in various ways.
16539:
16540: =head2 Symbs
16541:
16542: To identify a specific instance of a resource, LON-CAPA uses symbols
16543: or "symbs"X<symb>. These identifiers are built from the URL of the
16544: map, the resource number of the resource in the map, and the URL of
16545: the resource itself. The latter is somewhat redundant, but might help
16546: if maps change.
16547:
16548: An example is
16549:
16550: msu/korte/parts/part1.sequence___19___msu/korte/tests/part12.problem
16551:
16552: The respective map entry is
16553:
16554: <resource id="19" src="/res/msu/korte/tests/part12.problem"
16555: title="Problem 2">
16556: </resource>
16557:
16558: Symbs are used by the random number generator, as well as to store and
16559: restore data specific to a certain instance of for example a problem.
16560:
16561: =head2 Storing And Retrieving Data
16562:
16563: X<store()>X<cstore()>X<restore()>Three of the most important functions
16564: in C<lonnet.pm> are C<&Apache::lonnet::cstore()>,
16565: C<&Apache::lonnet:restore()>, and C<&Apache::lonnet::store()>, which
16566: is is the non-critical message twin of cstore. These functions are for
16567: handlers to store a perl hash to a user's permanent data space in an
16568: easy manner, and to retrieve it again on another call. It is expected
16569: that a handler would use this once at the beginning to retrieve data,
16570: and then again once at the end to send only the new data back.
16571:
16572: The data is stored in the user's data directory on the user's
16573: homeserver under the ID of the course.
16574:
16575: The hash that is returned by restore will have all of the previous
16576: value for all of the elements of the hash.
16577:
16578: Example:
16579:
16580: #creating a hash
16581: my %hash;
16582: $hash{'foo'}='bar';
16583:
16584: #storing it
16585: &Apache::lonnet::cstore(\%hash);
16586:
16587: #changing a value
16588: $hash{'foo'}='notbar';
16589:
16590: #adding a new value
16591: $hash{'bar'}='foo';
16592: &Apache::lonnet::cstore(\%hash);
16593:
16594: #retrieving the hash
16595: my %history=&Apache::lonnet::restore();
16596:
16597: #print the hash
16598: foreach my $key (sort(keys(%history))) {
16599: print("\%history{$key} = $history{$key}");
16600: }
16601:
16602: Will print out:
16603:
16604: %history{1:foo} = bar
16605: %history{1:keys} = foo:timestamp
16606: %history{1:timestamp} = 990455579
16607: %history{2:bar} = foo
16608: %history{2:foo} = notbar
16609: %history{2:keys} = foo:bar:timestamp
16610: %history{2:timestamp} = 990455580
16611: %history{bar} = foo
16612: %history{foo} = notbar
16613: %history{timestamp} = 990455580
16614: %history{version} = 2
16615:
16616: Note that the special hash entries C<keys>, C<version> and
16617: C<timestamp> were added to the hash. C<version> will be equal to the
16618: total number of versions of the data that have been stored. The
16619: C<timestamp> attribute will be the UNIX time the hash was
16620: stored. C<keys> is available in every historical section to list which
16621: keys were added or changed at a specific historical revision of a
16622: hash.
16623:
16624: B<Warning>: do not store the hash that restore returns directly. This
16625: will cause a mess since it will restore the historical keys as if the
16626: were new keys. I.E. 1:foo will become 1:1:foo etc.
16627:
16628: Calling convention:
16629:
16630: my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname);
16631: &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$laststore);
16632:
16633: For more detailed information, see lonnet specific documentation.
16634:
16635: =head1 RETURN MESSAGES
16636:
16637: =over 4
16638:
16639: =item * B<con_lost>: unable to contact remote host
16640:
16641: =item * B<con_delayed>: unable to contact remote host, message will be delivered
16642: when the connection is brought back up
16643:
16644: =item * B<con_failed>: unable to contact remote host and unable to save message
16645: for later delivery
16646:
16647: =item * B<error:>: an error a occurred, a description of the error follows the :
16648:
16649: =item * B<no_such_host>: unable to fund a host associated with the user/domain
16650: that was requested
16651:
16652: =back
16653:
16654: =head1 PUBLIC SUBROUTINES
16655:
16656: =head2 Session Environment Functions
16657:
16658: =over 4
16659:
16660: =item *
16661: X<appenv()>
16662: B<appenv($hashref,$rolesarrayref)>: the value of %{$hashref} is written to
16663: the user envirnoment file, and will be restored for each access this
16664: user makes during this session, also modifies the %env for the current
16665: process. Optional rolesarrayref - if defined contains a reference to an array
16666: of roles which are exempt from the restriction on modifying user.role entries
16667: in the user's environment.db and in %env.
16668:
16669: =item *
16670: X<delenv()>
16671: B<delenv($delthis,$regexp)>: removes all items from the session
16672: environment file that begin with $delthis. If the
16673: optional second arg - $regexp - is true, $delthis is treated as a
16674: regular expression, otherwise \Q$delthis\E is used.
16675: The values are also deleted from the current processes %env.
16676:
16677: =item * get_env_multiple($name)
16678:
16679: gets $name from the %env hash, it seemlessly handles the cases where multiple
16680: values may be defined and end up as an array ref.
16681:
16682: returns an array of values
16683:
16684: =back
16685:
16686: =head2 User Information
16687:
16688: =over 4
16689:
16690: =item *
16691: X<queryauthenticate()>
16692: B<queryauthenticate($uname,$udom)>: try to determine user's current
16693: authentication scheme
16694:
16695: =item *
16696: X<authenticate()>
16697: B<authenticate($uname,$upass,$udom,$checkdefauth,$clientcancheckhost)>: try to
16698: authenticate user from domain's lib servers (first use the current
16699: one). C<$upass> should be the users password.
16700: $checkdefauth is optional (value is 1 if a check should be made to
16701: authenticate user using default authentication method, and allow
16702: account creation if username does not have account in the domain).
16703: $clientcancheckhost is optional (value is 1 if checking whether the
16704: server can host will occur on the client side in lonauth.pm).
16705:
16706: =item *
16707: X<homeserver()>
16708: B<homeserver($uname,$udom)>: find the server which has
16709: the user's directory and files (there must be only one), this caches
16710: the answer, and also caches if there is a borken connection.
16711:
16712: =item *
16713: X<idget()>
16714: B<idget($udom,$idsref,$namespace)>: find the usernames behind either
16715: a list of student/employee IDs or clicker IDs
16716: (student/employee IDs are a unique resource in a domain, there must be
16717: only 1 ID per username, and only 1 username per ID in a specific domain).
16718: clickerIDs are not necessarily unique, as students might share clickers.
16719: (returns hash: id=>name,id=>name)
16720:
16721: =item *
16722: X<idrget()>
16723: B<idrget($udom,@unames)>: find the IDs behind a list of
16724: usernames (returns hash: name=>id,name=>id)
16725:
16726: =item *
16727: X<idput()>
16728: B<idput($udom,$idsref,$uhome,$namespace)>: store away a list of
16729: names and associated student/employee IDs or clicker IDs.
16730:
16731: =item *
16732: X<iddel()>
16733: B<iddel($udom,$idshashref,$uhome,$namespace)>: delete unwanted
16734: student/employee ID or clicker ID username look-ups from domain.
16735: The homeserver ($uhome) and namespace ($namespace) are optional.
16736: If no $uhome is provided, it will be determined usig &homeserver()
16737: for each user. If no $namespace is provided, the default is ids.
16738:
16739: =item *
16740: X<updateclickers()>
16741: B<updateclickers($udom,$action,$idshashref,$uhome,$critical)>: update
16742: clicker ID-to-username look-ups in clickers.db on library server.
16743: Permitted actions are add or del (i.e., add or delete). The
16744: clickers.db contains clickerID as keys (escaped), and each corresponding
16745: value is an escaped comma-separated list of usernames (for whom the
16746: library server is the homeserver), who registered that particular ID.
16747: If $critical is true, the update will be sent via &critical, otherwise
16748: &reply() will be used.
16749:
16750: =item *
16751: X<rolesinit()>
16752: B<rolesinit($udom,$username)>: get user privileges.
16753: returns user role, first access and timer interval hashes
16754:
16755: =item *
16756: X<privileged()>
16757: B<privileged($username,$domain)>: returns a true if user has a
16758: privileged and active role (i.e. su or dc), false otherwise.
16759:
16760: =item *
16761: X<getsection()>
16762: B<getsection($udom,$uname,$cname)>: finds the section of student in the
16763: course $cname, return section name/number or '' for "not in course"
16764: and '-1' for "no section"
16765:
16766: =item *
16767: X<userenvironment()>
16768: B<userenvironment($udom,$uname,@what)>: gets the values of the keys
16769: passed in @what from the requested user's environment, returns a hash
16770:
16771: =item *
16772: X<userlog_query()>
16773: B<userlog_query($uname,$udom,%filters)>: retrieves data from a user's
16774: activity.log file. %filters defines filters applied when parsing the
16775: log file. These can be start or end timestamps, or the type of action
16776: - log to look for Login or Logout events, check for Checkin or
16777: Checkout, role for role selection. The response is in the form
16778: timestamp1:hostid1:event1×tamp2:hostid2:event2 where events are
16779: escaped strings of the action recorded in the activity.log file.
16780:
16781: =back
16782:
16783: =head2 User Roles
16784:
16785: =over 4
16786:
16787: =item *
16788:
16789: allowed($priv,$uri,$symb,$role,$clientip,$noblockcheck) : check for a user privilege;
16790: returns codes for allowed actions.
16791:
16792: The first argument is required, all others are optional.
16793:
16794: $priv is the privilege being checked.
16795: $uri contains additional information about what is being checked for access (e.g.,
16796: URL, course ID etc.).
16797: $symb is the unique resource instance identifier in a course; if needed,
16798: but not provided, it will be retrieved via a call to &symbread().
16799: $role is the role for which a priv is being checked (only used if priv is evb).
16800: $clientip is the user's IP address (only used when checking for access to portfolio
16801: files).
16802: $noblockcheck, if true, skips calls to &has_comm_blocking() for the bre priv. This
16803: prevents recursive calls to &allowed.
16804:
16805: F: full access
16806: U,I,K: authentication modes (cxx only)
16807: '': forbidden
16808: 1: user needs to choose course
16809: 2: browse allowed
16810: A: passphrase authentication needed
16811: B: access temporarily blocked because of a blocking event in a course.
16812: D: access blocked because access is required via session initiated via deep-link
16813:
16814: =item *
16815:
16816: constructaccess($url,$setpriv) : check for access to construction space URL
16817:
16818: See if the owner domain and name in the URL match those in the
16819: expected environment. If so, return three element list
16820: ($ownername,$ownerdomain,$ownerhome).
16821:
16822: Otherwise return the null string.
16823:
16824: If second argument 'setpriv' is true, it assigns the privileges,
16825: and returns the same three element list, unless the owner has
16826: blocked "ad hoc" Domain Coordinator access to the Author Space,
16827: in which case the null string is returned.
16828:
16829: =item *
16830:
16831: definerole($rolename,$sysrole,$domrole,$courole,$uname,$udom) : define role;
16832: define a custom role rolename set privileges in format of lonTabs/roles.tab
16833: for system, domain, and course level. $uname and $udom are optional (current
16834: user's username and domain will be used when either of $uname or $udom are absent.
16835:
16836: =item *
16837:
16838: plaintext($short,$type,$cid,$forcedefault) : return value in %prp hash
16839: (rolesplain.tab); plain text explanation of a user role term.
16840: $type is Course (default) or Community.
16841: If $forcedefault evaluates to true, text returned will be default
16842: text for $type. Otherwise, if this is a course, the text returned
16843: will be a custom name for the role (if defined in the course's
16844: environment). If no custom name is defined the default is returned.
16845:
16846: =item *
16847:
16848: get_my_roles($uname,$udom,$context,$types,$roles,$roledoms,$withsec,$hidepriv) :
16849: All arguments are optional. Returns a hash of a roles, either for
16850: co-author/assistant author roles for a user's Construction Space
16851: (default), or if $context is 'userroles', roles for the user himself,
16852: In the hash, keys are set to colon-separated $uname,$udom,$role, and
16853: (optionally) if $withsec is true, a fourth colon-separated item - $section.
16854: For each key, value is set to colon-separated start and end times for
16855: the role. If no username and domain are specified, will default to
16856: current user/domain. Types, roles, and roledoms are references to arrays
16857: of role statuses (active, future or previous), roles
16858: (e.g., cc,in, st etc.) and domains of the roles which can be used
16859: to restrict the list of roles reported. If no array ref is
16860: provided for types, will default to return only active roles.
16861:
16862: =item *
16863:
16864: in_course($udom,$uname,$cdom,$cnum,$type,$hideprivileged) : determine if
16865: user: $uname:$udom has a role in the course: $cdom_$cnum.
16866:
16867: Additional optional arguments are: $type (if role checking is to be restricted
16868: to certain user status types -- previous (expired roles), active (currently
16869: available roles) or future (roles available in the future), and
16870: $hideprivileged -- if true will not report course roles for users who
16871: have active Domain Coordinator role in course's domain or in additional
16872: domains (specified in 'Domains to check for privileged users' in course
16873: environment -- set via: Course Settings -> Classlists and staff listing).
16874:
16875: =item *
16876:
16877: privileged($username,$domain,$possdomains,$possroles) : returns 1 if user
16878: $username:$domain is a privileged user (e.g., Domain Coordinator or Super User)
16879: $possdomains and $possroles are optional array refs -- to domains to check and
16880: roles to check. If $possdomains is not specified, a dump will be done of the
16881: users' roles.db to check for a dc or su role in any domain. This can be
16882: time consuming if &privileged is called repeatedly (e.g., when displaying a
16883: classlist), so in such cases, supplying a $possdomains array is preferred, as
16884: this then allows &privileged_by_domain() to be used, which caches the identity
16885: of privileged users, eliminating the need for repeated calls to &dump().
16886:
16887: =item *
16888:
16889: privileged_by_domain($possdomains,$roles) : returns a hash of a hash of a hash,
16890: where the outer hash keys are domains specified in the $possdomains array ref,
16891: next inner hash keys are privileged roles specified in the $roles array ref,
16892: and the innermost hash contains key = value pairs for username:domain = end:start
16893: for active or future "privileged" users with that role in that domain. To avoid
16894: repeated dumps of domain roles -- via &get_domain_roles() -- contents of the
16895: innerhash are cached using priv_$role and $dom as the identifiers.
16896:
16897: =back
16898:
16899: =head2 User Modification
16900:
16901: =over 4
16902:
16903: =item *
16904:
16905: assignrole($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,$context) : assign role; give a role to a
16906: user for the level given by URL. Optional start and end dates (leave empty
16907: string or zero for "no date")
16908:
16909: =item *
16910:
16911: changepass($uname,$udom,$currentpass,$newpass,$server) : attempts to
16912: change a users, password, possible return values are: ok,
16913: pwchange_failure, non_authorized, auth_mode_error, unknown_user,
16914: refused
16915:
16916: =item *
16917:
16918: modifyuserauth($udom,$uname,$umode,$upass) : modify user authentication
16919:
16920: =item *
16921:
16922: modifyuser($udom,$uname,$uid,$umode,$upass,$first,$middle,$last, $gene,
16923: $forceid,$desiredhome,$email,$inststatus,$candelete) :
16924:
16925: will update user information (firstname,middlename,lastname,generation,
16926: permanentemail), and if forceid is true, student/employee ID also.
16927: A user's institutional affiliation(s) can also be updated.
16928: User information fields will not be overwritten with empty entries
16929: unless the field is included in the $candelete array reference.
16930: This array is included when a single user is modified via "Manage Users",
16931: or when Autoupdate.pl is run by cron in a domain.
16932:
16933: =item *
16934:
16935: modifystudent
16936:
16937: modify a student's enrollment and identification information.
16938: The course id is resolved based on the current user's environment.
16939: This means the invoking user must be a course coordinator or otherwise
16940: associated with a course.
16941:
16942: This call is essentially a wrapper for lonnet::modifyuser and
16943: lonnet::modify_student_enrollment
16944:
16945: Inputs:
16946:
16947: =over 4
16948:
16949: =item B<$udom> Student's loncapa domain
16950:
16951: =item B<$uname> Student's loncapa login name
16952:
16953: =item B<$uid> Student/Employee ID
16954:
16955: =item B<$umode> Student's authentication mode
16956:
16957: =item B<$upass> Student's password
16958:
16959: =item B<$first> Student's first name
16960:
16961: =item B<$middle> Student's middle name
16962:
16963: =item B<$last> Student's last name
16964:
16965: =item B<$gene> Student's generation
16966:
16967: =item B<$usec> Student's section in course
16968:
16969: =item B<$end> Unix time of the roles expiration
16970:
16971: =item B<$start> Unix time of the roles start date
16972:
16973: =item B<$forceid> If defined, allow $uid to be changed
16974:
16975: =item B<$desiredhome> server to use as home server for student
16976:
16977: =item B<$email> Student's permanent e-mail address
16978:
16979: =item B<$type> Type of enrollment (auto or manual)
16980:
16981: =item B<$locktype> boolean - enrollment type locked to prevent Autoenroll.pl changing manual to auto
16982:
16983: =item B<$cid> courseID - needed if a course role is assigned by a user whose current role is DC
16984:
16985: =item B<$selfenroll> boolean - 1 if user role change occurred via self-enrollment
16986:
16987: =item B<$context> role change context (shown in User Management Logs display in a course)
16988:
16989: =item B<$inststatus> institutional status of user - : separated string of escaped status types
16990:
16991: =item B<$credits> Number of credits student will earn from this class - only needs to be supplied if value needs to be different from default credits for class.
16992:
16993: =back
16994:
16995: =item *
16996:
16997: modify_student_enrollment
16998:
16999: Change a student's enrollment status in a class. The environment variable
17000: 'role.request.course' must be defined for this function to proceed.
17001:
17002: Inputs:
17003:
17004: =over 4
17005:
17006: =item $udom, student's domain
17007:
17008: =item $uname, student's name
17009:
17010: =item $uid, student's user id
17011:
17012: =item $first, student's first name
17013:
17014: =item $middle
17015:
17016: =item $last
17017:
17018: =item $gene
17019:
17020: =item $usec
17021:
17022: =item $end
17023:
17024: =item $start
17025:
17026: =item $type
17027:
17028: =item $locktype
17029:
17030: =item $cid
17031:
17032: =item $selfenroll
17033:
17034: =item $context
17035:
17036: =item $credits, number of credits student will earn from this class
17037:
17038: =item $instsec, institutional course section code for student
17039:
17040: =back
17041:
17042:
17043: =item *
17044:
17045: assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start) : assign
17046: custom role; give a custom role to a user for the level given by URL. Specify
17047: name and domain of role author, and role name
17048:
17049: =item *
17050:
17051: revokerole($udom,$uname,$url,$role) : revoke a role for url
17052:
17053: =item *
17054:
17055: revokecustomrole($udom,$uname,$url,$role) : revoke a custom role
17056:
17057: =back
17058:
17059: =head2 Course Infomation
17060:
17061: =over 4
17062:
17063: =item *
17064:
17065: coursedescription($courseid,$options) : returns a hash of information about the
17066: specified course id, including all environment settings for the
17067: course, the description of the course will be in the hash under the
17068: key 'description'
17069:
17070: $options is an optional parameter that if supplied is a hash reference that controls
17071: what how this function works. It has the following key/values:
17072:
17073: =over 4
17074:
17075: =item freshen_cache
17076:
17077: If defined, and the environment cache for the course is valid, it is
17078: returned in the returned hash.
17079:
17080: =item one_time
17081:
17082: If defined, the last cache time is set to _now_
17083:
17084: =item user
17085:
17086: If defined, the supplied username is used instead of the current user.
17087:
17088:
17089: =back
17090:
17091: =item *
17092:
17093: resdata($name,$domain,$type,@which) : request for current parameter
17094: setting for a specific $type, where $type is either 'course' or 'user',
17095: @what should be a list of parameters to ask about. This routine caches
17096: answers for 10 minutes.
17097:
17098: =item *
17099:
17100: get_courseresdata($courseid, $domain) : dump the entire course resource
17101: data base, returning a hash that is keyed by the resource name and has
17102: values that are the resource value. I believe that the timestamps and
17103: versions are also returned.
17104:
17105: =back
17106:
17107: =head2 Course Modification
17108:
17109: =over 4
17110:
17111: =item *
17112:
17113: writecoursepref($courseid,%prefs) : write preferences (environment
17114: database) for a course
17115:
17116: =item *
17117:
17118: createcourse($udom,$description,$url,$course_server,$nonstandard,$inst_code,$course_owner,$crstype,$cnum) : make course
17119:
17120: =item *
17121:
17122: generate_coursenum($udom,$crstype) : get a unique (unused) course number in domain $udom for course type $crstype (Course or Community).
17123:
17124: =item *
17125:
17126: is_course($courseid), is_course($cdom, $cnum)
17127:
17128: Accepts either a combined $courseid (in the form of domain_courseid) or the
17129: two component version $cdom, $cnum. It checks if the specified course exists.
17130:
17131: Returns:
17132: undef if the course doesn't exist, otherwise
17133: in scalar context the combined courseid.
17134: in list context the two components of the course identifier, domain and
17135: courseid.
17136:
17137: =back
17138:
17139: =head2 Bubblesheet Configuration
17140:
17141: =over 4
17142:
17143: =item *
17144:
17145: get_scantron_config($which)
17146:
17147: $which - the name of the configuration to parse from the file.
17148:
17149: Parses and returns the bubblesheet configuration line selected as a
17150: hash of configuration file fields.
17151:
17152:
17153: Returns:
17154: If the named configuration is not in the file, an empty
17155: hash is returned.
17156:
17157: a hash with the fields
17158: name - internal name for the this configuration setup
17159: description - text to display to operator that describes this config
17160: CODElocation - if 0 or the string 'none'
17161: - no CODE exists for this config
17162: if -1 || the string 'letter'
17163: - a CODE exists for this config and is
17164: a string of letters
17165: Unsupported value (but planned for future support)
17166: if a positive integer
17167: - The CODE exists as the first n items from
17168: the question section of the form
17169: if the string 'number'
17170: - The CODE exists for this config and is
17171: a string of numbers
17172: CODEstart - (only matter if a CODE exists) column in the line where
17173: the CODE starts
17174: CODElength - length of the CODE
17175: IDstart - column where the student/employee ID starts
17176: IDlength - length of the student/employee ID info
17177: Qstart - column where the information from the bubbled
17178: 'questions' start
17179: Qlength - number of columns comprising a single bubble line from
17180: the sheet. (usually either 1 or 10)
17181: Qon - either a single character representing the character used
17182: to signal a bubble was chosen in the positional setup, or
17183: the string 'letter' if the letter of the chosen bubble is
17184: in the final, or 'number' if a number representing the
17185: chosen bubble is in the file (1->A 0->J)
17186: Qoff - the character used to represent that a bubble was
17187: left blank
17188: PaperID - if the scanning process generates a unique number for each
17189: sheet scanned the column that this ID number starts in
17190: PaperIDlength - number of columns that comprise the unique ID number
17191: for the sheet of paper
17192: FirstName - column that the first name starts in
17193: FirstNameLength - number of columns that the first name spans
17194: LastName - column that the last name starts in
17195: LastNameLength - number of columns that the last name spans
17196: BubblesPerRow - number of bubbles available in each row used to
17197: bubble an answer. (If not specified, 10 assumed).
17198:
17199:
17200: =item *
17201:
17202: get_scantronformat_file($cdom)
17203:
17204: $cdom - the course's domain (optional); if not supplied, uses
17205: domain for current $env{'request.course.id'}.
17206:
17207: Returns an array containing lines from the scantron format file for
17208: the domain of the course.
17209:
17210: If a url for a custom.tab file is listed in domain's configuration.db,
17211: lines are from this file.
17212:
17213: Otherwise, if a default.tab has been published in RES space by the
17214: domainconfig user, lines are from this file.
17215:
17216: Otherwise, fall back to getting lines from the legacy file on the
17217: local server: /home/httpd/lonTabs/default_scantronformat.tab
17218:
17219: =back
17220:
17221: =head2 Resource Subroutines
17222:
17223: =over 4
17224:
17225: =item *
17226:
17227: subscribe($fname) : subscribe to a resource, returns URL if possible (probably should use repcopy instead)
17228:
17229: =item *
17230:
17231: repcopy($filename) : subscribes to the requested file, and attempts to
17232: replicate from the owning library server, Might return
17233: 'unavailable', 'not_found', 'forbidden', 'ok', or
17234: 'bad_request', also attempts to grab the metadata for the
17235: resource. Expects the local filesystem pathname
17236: (/home/httpd/html/res/....)
17237:
17238: =back
17239:
17240: =head2 Resource Information
17241:
17242: =over 4
17243:
17244: =item *
17245:
17246: EXT($varname,$symb,$udom,$uname,$usection,$recurse,$cid) : evaluates
17247: and returns the value of a variety of different possible values,
17248: $varname should be a request string, and the other parameters can be
17249: used to specify who and what one is asking about. Ordinarily, $cid
17250: does not need to be specified, as it is retrived from
17251: $env{'request.course.id'}, but &Apache::lonnet::EXT() is called
17252: within lonuserstate::loadmap() when initializing a course, before
17253: $env{'request.course.id'} has been set, so it needs to be provided
17254: in that one case.
17255:
17256: Possible values for $varname are environment.lastname (or other item
17257: from the envirnment hash), user.name (or someother aspect about the
17258: user), resource.0.maxtries (or some other part and parameter of a
17259: resource)
17260:
17261: =item *
17262:
17263: directcondval($number) : get current value of a condition; reads from a state
17264: string
17265:
17266: =item *
17267:
17268: condval($condidx) : value of condition index based on state
17269:
17270: =item *
17271:
17272: metadata($uri,$what,$toolsymb,$liburi,$prefix,$depthcount) : request a
17273: resource's metadata, $what should be either a specific key, or either
17274: 'keys' (to get a list of possible keys) or 'packages' to get a list of
17275: packages that this resource currently uses, the last 3 arguments are
17276: only used internally for recursive metadata.
17277:
17278: the toolsymb is only used where the uri is for an external tool (for which
17279: the uri as well as the symb are guaranteed to be unique).
17280:
17281: this function automatically caches all requests except any made recursively
17282: to retrieve a list of metadata keys for an imported library file ($liburi is
17283: defined).
17284:
17285: =item *
17286:
17287: metadata_query($query,$custom,$customshow) : make a metadata query against the
17288: network of library servers; returns file handle of where SQL and regex results
17289: will be stored for query
17290:
17291: =item *
17292:
17293: symbread($filename,$donotrecurse,$ignorecachednull,$checkforblock,$possibles) :
17294: return symbolic list entry (all arguments optional).
17295:
17296: Args: filename is the filename (including path) for the file for which a symb
17297: is required; donotrecurse, if true will prevent calls to allowed() being made
17298: to check access status if more than one resource was found in the bighash
17299: (see rev. 1.249) to avoid an infinite loop if an ambiguous resource is part of
17300: a randompick); ignorecachednull, if true will prevent a symb of '' being
17301: returned if $env{$cache_str} is defined as ''; checkforblock if true will
17302: cause possible symbs to be checked to determine if they are subject to content
17303: blocking, if so they will not be included as possible symbs; possibles is a
17304: ref to a hash, which, as a side effect, will be populated with all possible
17305: symbs (content blocking not tested).
17306:
17307: returns the data handle
17308:
17309: =item *
17310:
17311: symbverify($symb,$thisfn,$encstate) : verifies that $symb actually exists
17312: and is a possible symb for the URL in $thisfn, and if is an encrypted
17313: resource that the user accessed using /enc/ returns a 1 on success, 0
17314: on failure, user must be in a course, as it assumes the existence of
17315: the course initial hash, and uses $env('request.course.id'}. The third
17316: arg is an optional reference to a scalar. If this arg is passed in the
17317: call to symbverify, it will be set to 1 if the symb has been set to be
17318: encrypted; otherwise it will be null.
17319:
17320: =item *
17321:
17322: symbclean($symb) : removes versions numbers from a symb, returns the
17323: cleaned symb
17324:
17325: =item *
17326:
17327: is_on_map($uri) : checks if the $uri is somewhere on the current
17328: course map, user must be in a course for it to work.
17329:
17330: =item *
17331:
17332: numval($salt) : return random seed value (addend for rndseed)
17333:
17334: =item *
17335:
17336: rndseed($symb,$courseid,$udom,$uname) : create a random sum; returns
17337: a random seed, all arguments are optional, if they aren't sent it uses the
17338: environment to derive them. Note: if symb isn't sent and it can't get one
17339: from &symbread it will use the current time as its return value
17340:
17341: =item *
17342:
17343: ireceipt($funame,$fudom,$fucourseid,$fusymb) : return unique,
17344: unfakeable, receipt
17345:
17346: =item *
17347:
17348: receipt() : API to ireceipt working off of env values; given out to users
17349:
17350: =item *
17351:
17352: countacc($url) : count the number of accesses to a given URL
17353:
17354: =item *
17355:
17356: checkout($symb,$tuname,$tudom,$tcrsid) : creates a record of a user having looked at an item, most likely printed out or otherwise using a resource
17357:
17358: =item *
17359:
17360: checkin($token) : updates that a resource has beeen returned (a hard copy version for instance) and returns the data that $token was Checkout with ($symb, $tuname, $tudom, and $tcrsid)
17361:
17362: =item *
17363:
17364: expirespread($uname,$udom,$stype,$usymb) : set expire date for spreadsheet
17365:
17366: =item *
17367:
17368: devalidate($symb) : devalidate temporary spreadsheet calculations,
17369: forcing spreadsheet to reevaluate the resource scores next time.
17370:
17371: =item *
17372:
17373: can_edit_resource($file,$cnum,$cdom,$resurl,$symb,$group) : determine if current user can edit a particular resource,
17374: when viewing in course context.
17375:
17376: input: six args -- filename (decluttered), course number, course domain,
17377: url, symb (if registered) and group (if this is a
17378: group item -- e.g., bulletin board, group page etc.).
17379:
17380: output: array of five scalars --
17381: $cfile -- url for file editing if editable on current server
17382: $home -- homeserver of resource (i.e., for author if published,
17383: or course if uploaded.).
17384: $switchserver -- 1 if server switch will be needed.
17385: $forceedit -- 1 if icon/link should be to go to edit mode
17386: $forceview -- 1 if icon/link should be to go to view mode
17387:
17388: =item *
17389:
17390: is_course_upload($file,$cnum,$cdom)
17391:
17392: Used in course context to determine if current file was uploaded to
17393: the course (i.e., would be found in /userfiles/docs on the course's
17394: homeserver.
17395:
17396: input: 3 args -- filename (decluttered), course number and course domain.
17397: output: boolean -- 1 if file was uploaded.
17398:
17399: =back
17400:
17401: =head2 Storing/Retreiving Data
17402:
17403: =over 4
17404:
17405: =item *
17406:
17407: store($storehash,$symb,$namespace,$udom,$uname,$laststore) : stores hash
17408: permanently for this url; hashref needs to be given and should be a \%hashname;
17409: the remaining args aren't required and if they aren't passed or are '' they will
17410: be derived from the env (with the exception of $laststore, which is an
17411: optional arg used when a user's submission is stored in grading).
17412: $laststore is $version=$timestamp, where $version is the most recent version
17413: number retrieved for the corresponding $symb in the $namespace db file, and
17414: $timestamp is the timestamp for that transaction (UNIX time).
17415: $laststore is currently only passed when cstore() is called by
17416: structuretags::finalize_storage().
17417:
17418: =item *
17419:
17420: cstore($storehash,$symb,$namespace,$udom,$uname,$laststore) : same as store
17421: but uses critical subroutine
17422:
17423: =item *
17424:
17425: restore($symb,$namespace,$udom,$uname) : returns hash for this symb;
17426: all args are optional
17427:
17428: =item *
17429:
17430: dumpstore($namespace,$udom,$uname,$regexp,$range) :
17431: dumps the complete (or key matching regexp) namespace into a hash
17432: ($udom, $uname, $regexp, $range are optional) for a namespace that is
17433: normally &store()ed into
17434:
17435: $range should be either an integer '100' (give me the first 100
17436: matching records)
17437: or be two integers sperated by a - with no spaces
17438: '30-50' (give me the 30th through the 50th matching
17439: records)
17440:
17441:
17442: =item *
17443:
17444: putstore($namespace,$symb,$version,$storehash,$udomain,$uname,$tolog) :
17445: replaces a &store() version of data with a replacement set of data
17446: for a particular resource in a namespace passed in the $storehash hash
17447: reference. If $tolog is true, the transaction is logged in the courselog
17448: with an action=PUTSTORE.
17449:
17450: =item *
17451:
17452: tmpstore($storehash,$symb,$namespace,$udom,$uname) : storage that
17453: works very similar to store/cstore, but all data is stored in a
17454: temporary location and can be reset using tmpreset, $storehash should
17455: be a hash reference, returns nothing on success
17456:
17457: =item *
17458:
17459: tmprestore($symb,$namespace,$udom,$uname) : storage that works very
17460: similar to restore, but all data is stored in a temporary location and
17461: can be reset using tmpreset. Returns a hash of values on success,
17462: error string otherwise.
17463:
17464: =item *
17465:
17466: tmpreset($symb,$namespace,$udom,$uname) : temporary storage reset,
17467: deltes all keys for $symb form the temporary storage hash.
17468:
17469: =item *
17470:
17471: get($namespace,$storearr,$udom,$uname) : returns hash with keys from array
17472: reference filled in from namesp ($udom and $uname are optional)
17473:
17474: =item *
17475:
17476: del($namespace,$storearr,$udom,$uname) : deletes keys out of array from
17477: namesp ($udom and $uname are optional)
17478:
17479: =item *
17480:
17481: dump($namespace,$udom,$uname,$regexp,$range) :
17482: dumps the complete (or key matching regexp) namespace into a hash
17483: ($udom, $uname, $regexp, $range are optional)
17484:
17485: $range should be either an integer '100' (give me the first 100
17486: matching records)
17487: or be two integers sperated by a - with no spaces
17488: '30-50' (give me the 30th through the 50th matching
17489: records)
17490: =item *
17491:
17492: inc($namespace,$store,$udom,$uname) : increments $store in $namespace.
17493: $store can be a scalar, an array reference, or if the amount to be
17494: incremented is > 1, a hash reference.
17495:
17496: ($udom and $uname are optional)
17497:
17498: =item *
17499:
17500: put($namespace,$storehash,$udom,$uname) : stores hash in namesp
17501: ($udom and $uname are optional)
17502:
17503: =item *
17504:
17505: cput($namespace,$storehash,$udom,$uname) : critical put
17506: ($udom and $uname are optional)
17507:
17508: =item *
17509:
17510: newput($namespace,$storehash,$udom,$uname) :
17511:
17512: Attempts to store the items in the $storehash, but only if they don't
17513: currently exist, if this succeeds you can be certain that you have
17514: successfully created a new key value pair in the $namespace db.
17515:
17516:
17517: Args:
17518: $namespace: name of database to store values to
17519: $storehash: hashref to store to the db
17520: $udom: (optional) domain of user containing the db
17521: $uname: (optional) name of user caontaining the db
17522:
17523: Returns:
17524: 'ok' -> succeeded in storing all keys of $storehash
17525: 'key_exists: <key>' -> failed to anything out of $storehash, as at
17526: least <key> already existed in the db (other
17527: requested keys may also already exist)
17528: 'error: <msg>' -> unable to tie the DB or other error occurred
17529: 'con_lost' -> unable to contact request server
17530: 'refused' -> action was not allowed by remote machine
17531:
17532:
17533: =item *
17534:
17535: eget($namespace,$storearr,$udom,$uname) : returns hash with keys from array
17536: reference filled in from namesp (encrypts the return communication)
17537: ($udom and $uname are optional)
17538:
17539: =item *
17540:
17541: log($udom,$name,$home,$message) : write to permanent log for user; use
17542: critical subroutine
17543:
17544: =item *
17545:
17546: get_dom($namespace,$storearr,$udom,$uhome) : returns hash with keys from
17547: array reference filled in from namespace found in domain level on either
17548: specified domain server ($uhome) or primary domain server ($udom and $uhome are optional).
17549:
17550: =item *
17551:
17552: put_dom($namespace,$storehash,$udom,$uhome) : stores hash in namespace at
17553: domain level either on specified domain server ($uhome) or primary domain
17554: server ($udom and $uhome are optional)
17555:
17556: =item *
17557:
17558: get_domain_defaults($target_domain,$ignore_cache) : returns hash with defaults
17559: for: authentication, language, quotas, timezone, date locale, and portal URL in
17560: the target domain.
17561:
17562: May also include additional key => value pairs for the following groups:
17563:
17564: =over
17565:
17566: =item
17567: disk quotas (MB allocated by default to portfolios and authoring spaces).
17568:
17569: =over
17570:
17571: =item defaultquota, authorquota
17572:
17573: =back
17574:
17575: =item
17576: tools (availability of aboutme page, blog, webDAV access for authoring spaces,
17577: portfolio for users).
17578:
17579: =over
17580:
17581: =item
17582: aboutme, blog, webdav, portfolio
17583:
17584: =back
17585:
17586: =item
17587: requestcourses: ability to request courses, and how requests are processed.
17588:
17589: =over
17590:
17591: =item
17592: official, unofficial, community, textbook, placement
17593:
17594: =back
17595:
17596: =item
17597: inststatus: types of institutional affiliation, and order in which they are displayed.
17598:
17599: =over
17600:
17601: =item
17602: inststatustypes, inststatusorder, inststatusguest
17603:
17604: =back
17605:
17606: =item
17607: coursedefaults: can PDF forms can be created, default credits for courses, default quotas (MB)
17608: for course's uploaded content.
17609:
17610: =over
17611:
17612: =item
17613: canuse_pdfforms, officialcredits, unofficialcredits, textbookcredits, officialquota, unofficialquota,
17614: communityquota, textbookquota, placementquota
17615:
17616: =back
17617:
17618: =item
17619: usersessions: set options for hosting of your users in other domains, and hosting of users from other domains
17620: on your servers.
17621:
17622: =over
17623:
17624: =item
17625: remotesessions, hostedsessions
17626:
17627: =back
17628:
17629: =back
17630:
17631: In cases where a domain coordinator has never used the "Set Domain Configuration"
17632: utility to create a configuration.db file on a domain's primary library server
17633: only the following domain defaults: auth_def, auth_arg_def, lang_def
17634: -- corresponding values are authentication type (internal, krb4, krb5,
17635: or localauth), initial password or a kerberos realm, language (e.g., en-us) --
17636: will be available. Values are retrieved from cache (if current), unless the
17637: optional $ignore_cache arg is true, or from domain's configuration.db (if available),
17638: or lastly from values in lonTabs/dns_domain,tab, or lonTabs/domain.tab.
17639:
17640: Typical usage:
17641:
17642: %domdefaults = &get_domain_defaults($target_domain);
17643:
17644: =back
17645:
17646: =head2 Network Status Functions
17647:
17648: =over 4
17649:
17650: =item *
17651:
17652: dirlist() : return directory list based on URI (first arg).
17653:
17654: Inputs: 1 required, 5 optional.
17655:
17656: =over
17657:
17658: =item
17659: $uri - path to file in filesystem (starts: /res or /userfiles/). Required.
17660:
17661: =item
17662: $userdomain - domain of user/course to be listed. Extracted from $uri if absent.
17663:
17664: =item
17665: $username - username of user/course to be listed. Extracted from $uri if absent.
17666:
17667: =item
17668: $getpropath - boolean: 1 if prepend path using &propath().
17669:
17670: =item
17671: $getuserdir - boolean: 1 if prepend path for "userfiles".
17672:
17673: =item
17674: $alternateRoot - path to prepend in place of path from $uri.
17675:
17676: =back
17677:
17678: Returns: Array of up to two items.
17679:
17680: =over
17681:
17682: a reference to an array of files/subdirectories
17683:
17684: =over
17685:
17686: Each element in the array of files/subdirectories is a & separated list of
17687: item name and the result of running stat on the item. If dirlist was requested
17688: for a file instead of a directory, the item name will be ''. For a directory
17689: listing, if the item is a metadata file, the element will end &N&M
17690: (where N amd M are either 0 or 1, corresponding to obsolete set (1), or
17691: default copyright set (1).
17692:
17693: =back
17694:
17695: a scalar containing error condition (if encountered).
17696:
17697: =over
17698:
17699: =item
17700: no_host (no homeserver identified for $username:$domain).
17701:
17702: =item
17703: no_such_host (server contacted for listing not identified as valid host).
17704:
17705: =item
17706: con_lost (connection to remote server failed).
17707:
17708: =item
17709: refused (invalid $username:$domain received on lond side).
17710:
17711: =item
17712: no_such_dir (directory at specified path on lond side does not exist).
17713:
17714: =item
17715: empty (directory at specified path on lond side is empty).
17716:
17717: =over
17718:
17719: This is currently not encountered because the &ls3, &ls2,
17720: &ls (_handler) routines on the lond side do not filter out
17721: . and .. from a directory listing.
17722:
17723: =back
17724:
17725: =back
17726:
17727: =back
17728:
17729: =item *
17730:
17731: spareserver() : find server with least workload from spare.tab
17732:
17733:
17734: =item *
17735:
17736: host_from_dns($dns) : Returns the loncapa hostname corresponding to a DNS name or undef
17737: if there is no corresponding loncapa host.
17738:
17739: =back
17740:
17741:
17742: =head2 Apache Request
17743:
17744: =over 4
17745:
17746: =item *
17747:
17748: ssi($url,%hash) : server side include, does a complete request cycle on url to
17749: localhost, posts hash
17750:
17751: =back
17752:
17753: =head2 Data to String to Data
17754:
17755: =over 4
17756:
17757: =item *
17758:
17759: hash2str(%hash) : convert a hash into a string complete with escaping and '='
17760: and '&' separators, supports elements that are arrayrefs and hashrefs
17761:
17762: =item *
17763:
17764: hashref2str($hashref) : convert a hashref into a string complete with
17765: escaping and '=' and '&' separators, supports elements that are
17766: arrayrefs and hashrefs
17767:
17768: =item *
17769:
17770: arrayref2str($arrayref) : convert an arrayref into a string complete
17771: with escaping and '&' separators, supports elements that are arrayrefs
17772: and hashrefs
17773:
17774: =item *
17775:
17776: str2hash($string) : convert string to hash using unescaping and
17777: splitting on '=' and '&', supports elements that are arrayrefs and
17778: hashrefs
17779:
17780: =item *
17781:
17782: str2array($string) : convert string to hash using unescaping and
17783: splitting on '&', supports elements that are arrayrefs and hashrefs
17784:
17785: =back
17786:
17787: =head2 Logging Routines
17788:
17789:
17790: These routines allow one to make log messages in the lonnet.log and
17791: lonnet.perm logfiles.
17792:
17793: =over 4
17794:
17795: =item *
17796:
17797: logtouch() : make sure the logfile, lonnet.log, exists
17798:
17799: =item *
17800:
17801: logthis() : append message to the normal lonnet.log file, it gets
17802: preiodically rolled over and deleted.
17803:
17804: =item *
17805:
17806: logperm() : append a permanent message to lonnet.perm.log, this log
17807: file never gets deleted by any automated portion of the system, only
17808: messages of critical importance should go in here.
17809:
17810:
17811: =back
17812:
17813: =head2 General File Helper Routines
17814:
17815: =over 4
17816:
17817: =item *
17818:
17819: getfile($file,$caller) : two cases - requests for files in /res or in /uploaded.
17820: (a) files in /uploaded
17821: (i) If a local copy of the file exists -
17822: compares modification date of local copy with last-modified date for
17823: definitive version stored on home server for course. If local copy is
17824: stale, requests a new version from the home server and stores it.
17825: If the original has been removed from the home server, then local copy
17826: is unlinked.
17827: (ii) If local copy does not exist -
17828: requests the file from the home server and stores it.
17829:
17830: If $caller is 'uploadrep':
17831: This indicates a call from lonuploadrep.pm (PerlHeaderParserHandler phase)
17832: for request for files originally uploaded via DOCS.
17833: - returns 'ok' if fresh local copy now available, -1 otherwise.
17834:
17835: Otherwise:
17836: This indicates a call from the content generation phase of the request.
17837: - returns the entire contents of the file or -1.
17838:
17839: (b) files in /res
17840: - returns the entire contents of a file or -1;
17841: it properly subscribes to and replicates the file if neccessary.
17842:
17843:
17844: =item *
17845:
17846: stat_file($url) : $url is expected to be a /res/ or /uploaded/ style file
17847: reference
17848:
17849: returns either a stat() list of data about the file or an empty list
17850: if the file doesn't exist or couldn't find out about it (connection
17851: problems or user unknown)
17852:
17853: =item *
17854:
17855: filelocation($dir,$file) : returns file system location of a file
17856: based on URI; meant to be "fairly clean" absolute reference, $dir is a
17857: directory that relative $file lookups are to looked in ($dir of /a/dir
17858: and a file of ../bob will become /a/bob)
17859:
17860: =item *
17861:
17862: hreflocation($dir,$file) : returns file system location or a URL; same as
17863: filelocation except for hrefs
17864:
17865: =item *
17866:
17867: declutter() : declutters URLs -- remove beginning slashes, 'res' etc.
17868: also removes beginning /home/httpd/html unless /priv/ follows it.
17869:
17870: =back
17871:
17872: =head2 Usererfile file routines (/uploaded*)
17873:
17874: =over 4
17875:
17876: =item *
17877:
17878: userfileupload(): main rotine for putting a file in a user or course's
17879: filespace, arguments are,
17880:
17881: formname - required - this is the name of the element in $env where the
17882: filename, and the contents of the file to create/modifed exist
17883: the filename is in $env{'form.'.$formname.'.filename'} and the
17884: contents of the file is located in $env{'form.'.$formname}
17885: context - if coursedoc, store the file in the course of the active role
17886: of the current user;
17887: if 'existingfile': store in 'overwrites' in /home/httpd/perl/tmp
17888: if 'canceloverwrite': delete file in tmp/overwrites directory
17889: subdir - required - subdirectory to put the file in under ../userfiles/
17890: if undefined, it will be placed in "unknown"
17891:
17892: (This routine calls clean_filename() to remove any dangerous
17893: characters from the filename, and then calls finuserfileupload() to
17894: complete the transaction)
17895:
17896: returns either the url of the uploaded file (/uploaded/....) if successful
17897: and /adm/notfound.html if unsuccessful
17898:
17899: =item *
17900:
17901: clean_filename(): routine for cleaing a filename up for storage in
17902: userfile space, argument is:
17903:
17904: filename - proposed filename
17905:
17906: returns: the new clean filename
17907:
17908: =item *
17909:
17910: finishuserfileupload(): routine that creates and sends the file to
17911: userspace, probably shouldn't be called directly
17912:
17913: docuname: username or courseid of destination for the file
17914: docudom: domain of user/course of destination for the file
17915: formname: same as for userfileupload()
17916: fname: filename (including subdirectories) for the file
17917: parser: if 'parse', will parse (html) file to extract references to objects, links etc.
17918: if hashref, and context is scantron, will convert csv format to standard format
17919: allfiles: reference to hash used to store objects found by parser
17920: codebase: reference to hash used for codebases of java objects found by parser
17921: thumbwidth: width (pixels) of thumbnail to be created for uploaded image
17922: thumbheight: height (pixels) of thumbnail to be created for uploaded image
17923: resizewidth: width to be used to resize image using resizeImage from ImageMagick
17924: resizeheight: height to be used to resize image using resizeImage from ImageMagick
17925: context: if 'overwrite', will move the uploaded file from its temporary location to
17926: userfiles to facilitate overwriting a previously uploaded file with same name.
17927: mimetype: reference to scalar to accommodate mime type determined
17928: from File::MMagic if $parser = parse.
17929:
17930: returns either the url of the uploaded file (/uploaded/....) if successful
17931: and /adm/notfound.html if unsuccessful (or an error message if context
17932: was 'overwrite').
17933:
17934:
17935: =item *
17936:
17937: renameuserfile(): renames an existing userfile to a new name
17938:
17939: Args:
17940: docuname: username or courseid of destination for the file
17941: docudom: domain of user/course of destination for the file
17942: old: current file name (including any subdirs under userfiles)
17943: new: desired file name (including any subdirs under userfiles)
17944:
17945: =item *
17946:
17947: mkdiruserfile(): creates a directory is a userfiles dir
17948:
17949: Args:
17950: docuname: username or courseid of destination for the file
17951: docudom: domain of user/course of destination for the file
17952: dir: dir to create (including any subdirs under userfiles)
17953:
17954: =item *
17955:
17956: removeuserfile(): removes a file that exists in userfiles
17957:
17958: Args:
17959: docuname: username or courseid of destination for the file
17960: docudom: domain of user/course of destination for the file
17961: fname: filname to delete (including any subdirs under userfiles)
17962:
17963: =item *
17964:
17965: removeuploadedurl(): convience function for removeuserfile()
17966:
17967: Args:
17968: url: a full /uploaded/... url to delete
17969:
17970: =item *
17971:
17972: get_portfile_permissions():
17973: Args:
17974: domain: domain of user or course contain the portfolio files
17975: user: name of user or num of course contain the portfolio files
17976: Returns:
17977: hashref of a dump of the proper file_permissions.db
17978:
17979:
17980: =item *
17981:
17982: get_access_controls():
17983:
17984: Args:
17985: current_permissions: the hash ref returned from get_portfile_permissions()
17986: group: (optional) the group you want the files associated with
17987: file: (optional) the file you want access info on
17988:
17989: Returns:
17990: a hash (keys are file names) of hashes containing
17991: keys are: path to file/file_name\0uniqueID:scope_end_start (see below)
17992: values are XML containing access control settings (see below)
17993:
17994: Internal notes:
17995:
17996: access controls are stored in file_permissions.db as key=value pairs.
17997: key -> path to file/file_name\0uniqueID:scope_end_start
17998: where scope -> public,guest,course,group,domains or users.
17999: end -> UNIX time for end of access (0 -> no end date)
18000: start -> UNIX time for start of access
18001:
18002: value -> XML description of access control
18003: <scope type=""> (type =1 of: public,guest,course,group,domains,users">
18004: <start></start>
18005: <end></end>
18006:
18007: <password></password> for scope type = guest
18008:
18009: <domain></domain> for scope type = course or group
18010: <number></number>
18011: <roles id="">
18012: <role></role>
18013: <access></access>
18014: <section></section>
18015: <group></group>
18016: </roles>
18017:
18018: <dom></dom> for scope type = domains
18019:
18020: <users> for scope type = users
18021: <user>
18022: <uname></uname>
18023: <udom></udom>
18024: </user>
18025: </users>
18026: </scope>
18027:
18028: Access data is also aggregated for each file in an additional key=value pair:
18029: key -> path to file/file_name\0accesscontrol
18030: value -> reference to hash
18031: hash contains key = value pairs
18032: where key = uniqueID:scope_end_start
18033: value = UNIX time record was last updated
18034:
18035: Used to improve speed of look-ups of access controls for each file.
18036:
18037: Locks on files (resulting from submission of portfolio file to a homework problem stored in array of arrays.
18038:
18039: =item *
18040:
18041: modify_access_controls():
18042:
18043: Modifies access controls for a portfolio file
18044: Args
18045: 1. file name
18046: 2. reference to hash of required changes,
18047: 3. domain
18048: 4. username
18049: where domain,username are the domain of the portfolio owner
18050: (either a user or a course)
18051:
18052: Returns:
18053: 1. result of additions or updates ('ok' or 'error', with error message).
18054: 2. result of deletions ('ok' or 'error', with error message).
18055: 3. reference to hash of any new or updated access controls.
18056: 4. reference to hash used to map incoming IDs to uniqueIDs assigned to control.
18057: key = integer (inbound ID)
18058: value = uniqueID
18059:
18060: =item *
18061:
18062: get_timebased_id():
18063:
18064: Attempts to get a unique timestamp-based suffix for use with items added to a
18065: course via the Course Editor (e.g., folders, composite pages,
18066: group bulletin boards).
18067:
18068: Args: (first three required; six others optional)
18069:
18070: 1. prefix (alphanumeric): of keys in hash, e.g., suppsequence, docspage,
18071: docssequence, or name of group
18072:
18073: 2. keyid (alphanumeric): name of temporary locking key in hash,
18074: e.g., num, boardids
18075:
18076: 3. namespace: name of gdbm file used to store suffixes already assigned;
18077: file will be named nohist_namespace.db
18078:
18079: 4. cdom: domain of course; default is current course domain from %env
18080:
18081: 5. cnum: course number; default is current course number from %env
18082:
18083: 6. idtype: set to concat if an additional digit is to be appended to the
18084: unix timestamp to form the suffix, if the plain timestamp is already
18085: in use. Default is to not do this, but simply increment the unix
18086: timestamp by 1 until a unique key is obtained.
18087:
18088: 7. who: holder of locking key; defaults to user:domain for user.
18089:
18090: 8. locktries: number of attempts to obtain a lock (sleep of 1s before
18091: retrying); default is 3.
18092:
18093: 9. maxtries: number of attempts to obtain a unique suffix; default is 20.
18094:
18095: Returns:
18096:
18097: 1. suffix obtained (numeric)
18098:
18099: 2. result of deleting locking key (ok if deleted, or lock never obtained)
18100:
18101: 3. error: contains (localized) error message if an error occurred.
18102:
18103:
18104: =back
18105:
18106: =head2 HTTP Helper Routines
18107:
18108: =over 4
18109:
18110: =item *
18111:
18112: escape() : unpack non-word characters into CGI-compatible hex codes
18113:
18114: =item *
18115:
18116: unescape() : pack CGI-compatible hex codes into actual non-word ASCII character
18117:
18118: =back
18119:
18120: =head1 PRIVATE SUBROUTINES
18121:
18122: =head2 Underlying communication routines (Shouldn't call)
18123:
18124: =over 4
18125:
18126: =item *
18127:
18128: subreply() : tries to pass a message to lonc, returns con_lost if incapable
18129:
18130: =item *
18131:
18132: reply() : uses subreply to send a message to remote machine, logs all failures
18133:
18134: =item *
18135:
18136: critical() : passes a critical message to another server; if cannot
18137: get through then place message in connection buffer directory and
18138: returns con_delayed, if incapable of saving message, returns
18139: con_failed
18140:
18141: =item *
18142:
18143: reconlonc() : tries to reconnect lonc client processes.
18144:
18145: =back
18146:
18147: =head2 Resource Access Logging
18148:
18149: =over 4
18150:
18151: =item *
18152:
18153: flushcourselogs() : flush (save) buffer logs and access logs
18154:
18155: =item *
18156:
18157: courselog($what) : save message for course in hash
18158:
18159: =item *
18160:
18161: courseacclog($what) : save message for course using &courselog(). Perform
18162: special processing for specific resource types (problems, exams, quizzes, etc).
18163:
18164: =item *
18165:
18166: goodbye() : flush course logs and log shutting down; it is called in srm.conf
18167: as a PerlChildExitHandler
18168:
18169: =back
18170:
18171: =head2 Other
18172:
18173: =over 4
18174:
18175: =item *
18176:
18177: symblist($mapname,%newhash) : update symbolic storage links
18178:
18179: =back
18180:
18181: =cut
18182:
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