1: # The LearningOnline Network
2: # TCP networking package
3: #
4: # $Id: lonnet.pm,v 1.1518 2023/11/17 17:02:22 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','domexttool',
2761: 'exttool','privacy'],$domain);
2762: my @coursetypes = ('official','unofficial','community','textbook','placement');
2763: if (ref($domconfig{'defaults'}) eq 'HASH') {
2764: $domdefaults{'lang_def'} = $domconfig{'defaults'}{'lang_def'};
2765: $domdefaults{'auth_def'} = $domconfig{'defaults'}{'auth_def'};
2766: $domdefaults{'auth_arg_def'} = $domconfig{'defaults'}{'auth_arg_def'};
2767: $domdefaults{'timezone_def'} = $domconfig{'defaults'}{'timezone_def'};
2768: $domdefaults{'datelocale_def'} = $domconfig{'defaults'}{'datelocale_def'};
2769: $domdefaults{'portal_def'} = $domconfig{'defaults'}{'portal_def'};
2770: $domdefaults{'portal_def_email'} = $domconfig{'defaults'}{'portal_def_email'};
2771: $domdefaults{'portal_def_web'} = $domconfig{'defaults'}{'portal_def_web'};
2772: $domdefaults{'intauth_cost'} = $domconfig{'defaults'}{'intauth_cost'};
2773: $domdefaults{'intauth_switch'} = $domconfig{'defaults'}{'intauth_switch'};
2774: $domdefaults{'intauth_check'} = $domconfig{'defaults'}{'intauth_check'};
2775: $domdefaults{'unamemap_rule'} = $domconfig{'defaults'}{'unamemap_rule'};
2776: } else {
2777: $domdefaults{'lang_def'} = &domain($domain,'lang_def');
2778: $domdefaults{'auth_def'} = &domain($domain,'auth_def');
2779: $domdefaults{'auth_arg_def'} = &domain($domain,'auth_arg_def');
2780: }
2781: if (ref($domconfig{'quotas'}) eq 'HASH') {
2782: if (ref($domconfig{'quotas'}{'defaultquota'}) eq 'HASH') {
2783: $domdefaults{'defaultquota'} = $domconfig{'quotas'}{'defaultquota'};
2784: } else {
2785: $domdefaults{'defaultquota'} = $domconfig{'quotas'};
2786: }
2787: my @usertools = ('aboutme','blog','webdav','portfolio');
2788: foreach my $item (@usertools) {
2789: if (ref($domconfig{'quotas'}{$item}) eq 'HASH') {
2790: $domdefaults{$item} = $domconfig{'quotas'}{$item};
2791: }
2792: }
2793: if (ref($domconfig{'quotas'}{'authorquota'}) eq 'HASH') {
2794: $domdefaults{'authorquota'} = $domconfig{'quotas'}{'authorquota'};
2795: }
2796: }
2797: if (ref($domconfig{'requestcourses'}) eq 'HASH') {
2798: foreach my $item ('official','unofficial','community','textbook','placement') {
2799: $domdefaults{$item} = $domconfig{'requestcourses'}{$item};
2800: }
2801: }
2802: if (ref($domconfig{'requestauthor'}) eq 'HASH') {
2803: $domdefaults{'requestauthor'} = $domconfig{'requestauthor'};
2804: }
2805: if (ref($domconfig{'authordefaults'}) eq 'HASH') {
2806: foreach my $item ('nocodemirror','copyright','sourceavail','domcoordacc','editors') {
2807: if ($item eq 'editors') {
2808: if (ref($domconfig{'authordefaults'}{'editors'}) eq 'ARRAY') {
2809: $domdefaults{$item} = join(',',@{$domconfig{'authordefaults'}{'editors'}});
2810: }
2811: } else {
2812: $domdefaults{$item} = $domconfig{'authordefaults'}{$item};
2813: }
2814: }
2815: }
2816: if (ref($domconfig{'inststatus'}) eq 'HASH') {
2817: foreach my $item ('inststatustypes','inststatusorder','inststatusguest') {
2818: $domdefaults{$item} = $domconfig{'inststatus'}{$item};
2819: }
2820: }
2821: if (ref($domconfig{'coursedefaults'}) eq 'HASH') {
2822: $domdefaults{'canuse_pdfforms'} = $domconfig{'coursedefaults'}{'canuse_pdfforms'};
2823: $domdefaults{'usejsme'} = $domconfig{'coursedefaults'}{'usejsme'};
2824: $domdefaults{'inline_chem'} = $domconfig{'coursedefaults'}{'inline_chem'};
2825: $domdefaults{'uselcmath'} = $domconfig{'coursedefaults'}{'uselcmath'};
2826: if (ref($domconfig{'coursedefaults'}{'postsubmit'}) eq 'HASH') {
2827: $domdefaults{'postsubmit'} = $domconfig{'coursedefaults'}{'postsubmit'}{'client'};
2828: }
2829: foreach my $type (@coursetypes) {
2830: if (ref($domconfig{'coursedefaults'}{'coursecredits'}) eq 'HASH') {
2831: unless ($type eq 'community') {
2832: $domdefaults{$type.'credits'} = $domconfig{'coursedefaults'}{'coursecredits'}{$type};
2833: }
2834: }
2835: if (ref($domconfig{'coursedefaults'}{'uploadquota'}) eq 'HASH') {
2836: $domdefaults{$type.'quota'} = $domconfig{'coursedefaults'}{'uploadquota'}{$type};
2837: }
2838: if (ref($domconfig{'coursedefaults'}{'coursequota'}) eq 'HASH') {
2839: $domdefaults{$type.'coursequota'} = $domconfig{'coursedefaults'}{'coursequota'}{$type};
2840: }
2841: if ($domdefaults{'postsubmit'} eq 'on') {
2842: if (ref($domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}) eq 'HASH') {
2843: $domdefaults{$type.'postsubtimeout'} =
2844: $domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}{$type};
2845: }
2846: }
2847: if (ref($domconfig{'coursedefaults'}{'domexttool'}) eq 'HASH') {
2848: $domdefaults{$type.'domexttool'} = $domconfig{'coursedefaults'}{'domexttool'}{$type};
2849: } else {
2850: $domdefaults{$type.'domexttool'} = 1;
2851: }
2852: if (ref($domconfig{'coursedefaults'}{'exttool'}) eq 'HASH') {
2853: $domdefaults{$type.'exttool'} = $domconfig{'coursedefaults'}{'exttool'}{$type};
2854: } else {
2855: $domdefaults{$type.'exttool'} = 0;
2856: }
2857: }
2858: if (ref($domconfig{'coursedefaults'}{'canclone'}) eq 'HASH') {
2859: if (ref($domconfig{'coursedefaults'}{'canclone'}{'instcode'}) eq 'ARRAY') {
2860: my @clonecodes = @{$domconfig{'coursedefaults'}{'canclone'}{'instcode'}};
2861: if (@clonecodes) {
2862: $domdefaults{'canclone'} = join('+',@clonecodes);
2863: }
2864: }
2865: } elsif ($domconfig{'coursedefaults'}{'canclone'}) {
2866: $domdefaults{'canclone'}=$domconfig{'coursedefaults'}{'canclone'};
2867: }
2868: if ($domconfig{'coursedefaults'}{'texengine'}) {
2869: $domdefaults{'texengine'} = $domconfig{'coursedefaults'}{'texengine'};
2870: }
2871: if (exists($domconfig{'coursedefaults'}{'ltiauth'})) {
2872: $domdefaults{'crsltiauth'} = $domconfig{'coursedefaults'}{'ltiauth'};
2873: }
2874: }
2875: if (ref($domconfig{'usersessions'}) eq 'HASH') {
2876: if (ref($domconfig{'usersessions'}{'remote'}) eq 'HASH') {
2877: $domdefaults{'remotesessions'} = $domconfig{'usersessions'}{'remote'};
2878: }
2879: if (ref($domconfig{'usersessions'}{'hosted'}) eq 'HASH') {
2880: $domdefaults{'hostedsessions'} = $domconfig{'usersessions'}{'hosted'};
2881: }
2882: if (ref($domconfig{'usersessions'}{'offloadnow'}) eq 'HASH') {
2883: $domdefaults{'offloadnow'} = $domconfig{'usersessions'}{'offloadnow'};
2884: }
2885: if (ref($domconfig{'usersessions'}{'offloadoth'}) eq 'HASH') {
2886: $domdefaults{'offloadoth'} = $domconfig{'usersessions'}{'offloadoth'};
2887: }
2888: }
2889: if (ref($domconfig{'selfenrollment'}) eq 'HASH') {
2890: if (ref($domconfig{'selfenrollment'}{'admin'}) eq 'HASH') {
2891: my @settings = ('types','registered','enroll_dates','access_dates','section',
2892: 'approval','limit');
2893: foreach my $type (@coursetypes) {
2894: if (ref($domconfig{'selfenrollment'}{'admin'}{$type}) eq 'HASH') {
2895: my @mgrdc = ();
2896: foreach my $item (@settings) {
2897: if ($domconfig{'selfenrollment'}{'admin'}{$type}{$item} eq '0') {
2898: push(@mgrdc,$item);
2899: }
2900: }
2901: if (@mgrdc) {
2902: $domdefaults{$type.'selfenrolladmdc'} = join(',',@mgrdc);
2903: }
2904: }
2905: }
2906: }
2907: if (ref($domconfig{'selfenrollment'}{'default'}) eq 'HASH') {
2908: foreach my $type (@coursetypes) {
2909: if (ref($domconfig{'selfenrollment'}{'default'}{$type}) eq 'HASH') {
2910: foreach my $item (keys(%{$domconfig{'selfenrollment'}{'default'}{$type}})) {
2911: $domdefaults{$type.'selfenroll'.$item} = $domconfig{'selfenrollment'}{'default'}{$type}{$item};
2912: }
2913: }
2914: }
2915: }
2916: }
2917: if (ref($domconfig{'coursecategories'}) eq 'HASH') {
2918: $domdefaults{'catauth'} = 'std';
2919: $domdefaults{'catunauth'} = 'std';
2920: if ($domconfig{'coursecategories'}{'auth'}) {
2921: $domdefaults{'catauth'} = $domconfig{'coursecategories'}{'auth'};
2922: }
2923: if ($domconfig{'coursecategories'}{'unauth'}) {
2924: $domdefaults{'catunauth'} = $domconfig{'coursecategories'}{'unauth'};
2925: }
2926: }
2927: if (ref($domconfig{'ssl'}) eq 'HASH') {
2928: if (ref($domconfig{'ssl'}{'replication'}) eq 'HASH') {
2929: $domdefaults{'replication'} = $domconfig{'ssl'}{'replication'};
2930: }
2931: if (ref($domconfig{'ssl'}{'connto'}) eq 'HASH') {
2932: $domdefaults{'connect'} = $domconfig{'ssl'}{'connto'};
2933: }
2934: if (ref($domconfig{'ssl'}{'connfrom'}) eq 'HASH') {
2935: $domdefaults{'connect'} = $domconfig{'ssl'}{'connfrom'};
2936: }
2937: }
2938: if (ref($domconfig{'trust'}) eq 'HASH') {
2939: my @prefixes = qw(content shared enroll othcoau coaurem domroles catalog reqcrs msg);
2940: foreach my $prefix (@prefixes) {
2941: if (ref($domconfig{'trust'}{$prefix}) eq 'HASH') {
2942: $domdefaults{'trust'.$prefix} = $domconfig{'trust'}{$prefix};
2943: }
2944: }
2945: }
2946: if (ref($domconfig{'autoenroll'}) eq 'HASH') {
2947: $domdefaults{'autofailsafe'} = $domconfig{'autoenroll'}{'autofailsafe'};
2948: $domdefaults{'failsafe'} = $domconfig{'autoenroll'}{'failsafe'};
2949: }
2950: if (ref($domconfig{'helpsettings'}) eq 'HASH') {
2951: $domdefaults{'submitbugs'} = $domconfig{'helpsettings'}{'submitbugs'};
2952: if (ref($domconfig{'helpsettings'}{'adhoc'}) eq 'HASH') {
2953: $domdefaults{'adhocroles'} = $domconfig{'helpsettings'}{'adhoc'};
2954: }
2955: }
2956: if (ref($domconfig{'wafproxy'}) eq 'HASH') {
2957: foreach my $item ('ipheader','trusted','vpnint','vpnext','sslopt') {
2958: if ($domconfig{'wafproxy'}{$item}) {
2959: $domdefaults{'waf_'.$item} = $domconfig{'wafproxy'}{$item};
2960: }
2961: }
2962: }
2963: if (ref($domconfig{'ltisec'}) eq 'HASH') {
2964: if (ref($domconfig{'ltisec'}{'encrypt'}) eq 'HASH') {
2965: $domdefaults{'linkprotenc_crs'} = $domconfig{'ltisec'}{'encrypt'}{'crs'};
2966: $domdefaults{'linkprotenc_dom'} = $domconfig{'ltisec'}{'encrypt'}{'dom'};
2967: $domdefaults{'ltienc_consumers'} = $domconfig{'ltisec'}{'encrypt'}{'consumers'};
2968: }
2969: if (ref($domconfig{'ltisec'}{'private'}) eq 'HASH') {
2970: if (ref($domconfig{'ltisec'}{'private'}{'keys'}) eq 'ARRAY') {
2971: $domdefaults{'ltiprivhosts'} = $domconfig{'ltisec'}{'private'}{'keys'};
2972: }
2973: }
2974: }
2975: if (ref($domconfig{'toolsec'}) eq 'HASH') {
2976: if (ref($domconfig{'toolsec'}{'encrypt'}) eq 'HASH') {
2977: $domdefaults{'toolenc_crs'} = $domconfig{'toolsec'}{'encrypt'}{'crs'};
2978: $domdefaults{'toolenc_dom'} = $domconfig{'toolsec'}{'encrypt'}{'dom'};
2979: }
2980: if (ref($domconfig{'toolsec'}{'private'}) eq 'HASH') {
2981: if (ref($domconfig{'toolsec'}{'private'}{'keys'}) eq 'ARRAY') {
2982: $domdefaults{'toolprivhosts'} = $domconfig{'toolsec'}{'private'}{'keys'};
2983: }
2984: }
2985: }
2986: if (ref($domconfig{'privacy'}) eq 'HASH') {
2987: if (ref($domconfig{'privacy'}{'approval'}) eq 'HASH') {
2988: foreach my $domtype ('instdom','extdom') {
2989: if (ref($domconfig{'privacy'}{'approval'}{$domtype}) eq 'HASH') {
2990: foreach my $roletype ('domain','author','course','community') {
2991: if ($domconfig{'privacy'}{'approval'}{$domtype}{$roletype} eq 'user') {
2992: $domdefaults{'userapprovals'} = 1;
2993: last;
2994: }
2995: }
2996: }
2997: last if ($domdefaults{'userapprovals'});
2998: }
2999: }
3000: }
3001: &do_cache_new('domdefaults',$domain,\%domdefaults,$cachetime);
3002: return %domdefaults;
3003: }
3004:
3005: sub get_dom_cats {
3006: my ($dom) = @_;
3007: return unless (&domain($dom));
3008: my ($cats,$cached)=&is_cached_new('cats',$dom);
3009: unless (defined($cached)) {
3010: my %domconfig = &get_dom('configuration',['coursecategories'],$dom);
3011: if (ref($domconfig{'coursecategories'}) eq 'HASH') {
3012: if (ref($domconfig{'coursecategories'}{'cats'}) eq 'HASH') {
3013: %{$cats} = %{$domconfig{'coursecategories'}{'cats'}};
3014: } else {
3015: $cats = {};
3016: }
3017: } else {
3018: $cats = {};
3019: }
3020: &do_cache_new('cats',$dom,$cats,3600);
3021: }
3022: return $cats;
3023: }
3024:
3025: sub get_dom_instcats {
3026: my ($dom) = @_;
3027: return unless (&domain($dom));
3028: my ($instcats,$cached)=&is_cached_new('instcats',$dom);
3029: unless (defined($cached)) {
3030: my (%coursecodes,%codes,@codetitles,%cat_titles,%cat_order);
3031: my $totcodes = &retrieve_instcodes(\%coursecodes,$dom);
3032: if ($totcodes > 0) {
3033: my $caller = 'global';
3034: if (&auto_instcode_format($caller,$dom,\%coursecodes,\%codes,
3035: \@codetitles,\%cat_titles,\%cat_order) eq 'ok') {
3036: $instcats = {
3037: totcodes => $totcodes,
3038: codes => \%codes,
3039: codetitles => \@codetitles,
3040: cat_titles => \%cat_titles,
3041: cat_order => \%cat_order,
3042: };
3043: &do_cache_new('instcats',$dom,$instcats,3600);
3044: }
3045: }
3046: }
3047: return $instcats;
3048: }
3049:
3050: sub retrieve_instcodes {
3051: my ($coursecodes,$dom) = @_;
3052: my $totcodes;
3053: my %courses = &courseiddump($dom,'.',1,'.','.','.',undef,undef,'Course');
3054: foreach my $course (keys(%courses)) {
3055: if (ref($courses{$course}) eq 'HASH') {
3056: if ($courses{$course}{'inst_code'} ne '') {
3057: $$coursecodes{$course} = $courses{$course}{'inst_code'};
3058: $totcodes ++;
3059: }
3060: }
3061: }
3062: return $totcodes;
3063: }
3064:
3065: sub course_portal_url {
3066: my ($cnum,$cdom,$r) = @_;
3067: my $chome = &homeserver($cnum,$cdom);
3068: my $hostname = &hostname($chome);
3069: my $protocol = $protocol{$chome};
3070: $protocol = 'http' if ($protocol ne 'https');
3071: my %domdefaults = &get_domain_defaults($cdom);
3072: my $firsturl;
3073: if ($domdefaults{'portal_def'}) {
3074: $firsturl = $domdefaults{'portal_def'};
3075: } else {
3076: my $alias = &use_proxy_alias($r,$chome);
3077: $hostname = $alias if ($alias ne '');
3078: $firsturl = $protocol.'://'.$hostname;
3079: }
3080: return $firsturl;
3081: }
3082:
3083: sub url_prefix {
3084: my ($r,$dom,$home,$context) = @_;
3085: my $prefix;
3086: my %domdefs = &get_domain_defaults($dom);
3087: if ($domdefs{'portal_def'} && $domdefs{'portal_def_'.$context}) {
3088: if ($domdefs{'portal_def'} =~ m{^(https?://[^/]+)}) {
3089: $prefix = $1;
3090: }
3091: }
3092: if ($prefix eq '') {
3093: my $hostname = &hostname($home);
3094: my $protocol = $protocol{$home};
3095: $protocol = 'http' if ($protocol{$home} ne 'https');
3096: my $alias = &use_proxy_alias($r,$home);
3097: $hostname = $alias if ($alias ne '');
3098: $prefix = $protocol.'://'.$hostname;
3099: }
3100: return $prefix;
3101: }
3102:
3103: # --------------------------------------------- Get domain config for passwords
3104:
3105: sub get_passwdconf {
3106: my ($dom) = @_;
3107: my (%passwdconf,$gotconf,$lookup);
3108: my ($result,$cached)=&is_cached_new('passwdconf',$dom);
3109: if (defined($cached)) {
3110: if (ref($result) eq 'HASH') {
3111: %passwdconf = %{$result};
3112: $gotconf = 1;
3113: }
3114: }
3115: unless ($gotconf) {
3116: my %domconfig = &get_dom('configuration',['passwords'],$dom);
3117: if (ref($domconfig{'passwords'}) eq 'HASH') {
3118: %passwdconf = %{$domconfig{'passwords'}};
3119: }
3120: my $cachetime = 24*60*60;
3121: &do_cache_new('passwdconf',$dom,\%passwdconf,$cachetime);
3122: }
3123: return %passwdconf;
3124: }
3125:
3126: # --------------------------------------------------- Assign a key to a student
3127:
3128: sub assign_access_key {
3129: #
3130: # a valid key looks like uname:udom#comments
3131: # comments are being appended
3132: #
3133: my ($ckey,$kdom,$knum,$cdom,$cnum,$udom,$uname,$logentry)=@_;
3134: $kdom=
3135: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($kdom));
3136: $knum=
3137: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($knum));
3138: $cdom=
3139: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
3140: $cnum=
3141: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
3142: $udom=$env{'user.name'} unless (defined($udom));
3143: $uname=$env{'user.domain'} unless (defined($uname));
3144: my %existing=&get('accesskeys',[$ckey],$kdom,$knum);
3145: if (($existing{$ckey}=~/^\#(.*)$/) || # - new key
3146: ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#(.*)$/)) {
3147: # assigned to this person
3148: # - this should not happen,
3149: # unless something went wrong
3150: # the first time around
3151: # ready to assign
3152: $logentry=$1.'; '.$logentry;
3153: if (&put('accesskeys',{$ckey=>$uname.':'.$udom.'#'.$logentry},
3154: $kdom,$knum) eq 'ok') {
3155: # key now belongs to user
3156: my $envkey='key.'.$cdom.'_'.$cnum;
3157: if (&put('environment',{$envkey => $ckey}) eq 'ok') {
3158: &appenv({'environment.'.$envkey => $ckey});
3159: return 'ok';
3160: } else {
3161: return
3162: 'error: Count not permanently assign key, will need to be re-entered later.';
3163: }
3164: } else {
3165: return 'error: Could not assign key, try again later.';
3166: }
3167: } elsif (!$existing{$ckey}) {
3168: # the key does not exist
3169: return 'error: The key does not exist';
3170: } else {
3171: # the key is somebody else's
3172: return 'error: The key is already in use';
3173: }
3174: }
3175:
3176: # ------------------------------------------ put an additional comment on a key
3177:
3178: sub comment_access_key {
3179: #
3180: # a valid key looks like uname:udom#comments
3181: # comments are being appended
3182: #
3183: my ($ckey,$cdom,$cnum,$logentry)=@_;
3184: $cdom=
3185: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
3186: $cnum=
3187: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
3188: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
3189: if ($existing{$ckey}) {
3190: $existing{$ckey}.='; '.$logentry;
3191: # ready to assign
3192: if (&put('accesskeys',{$ckey=>$existing{$ckey}},
3193: $cdom,$cnum) eq 'ok') {
3194: return 'ok';
3195: } else {
3196: return 'error: Count not store comment.';
3197: }
3198: } else {
3199: # the key does not exist
3200: return 'error: The key does not exist';
3201: }
3202: }
3203:
3204: # ------------------------------------------------------ Generate a set of keys
3205:
3206: sub generate_access_keys {
3207: my ($number,$cdom,$cnum,$logentry)=@_;
3208: $cdom=
3209: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
3210: $cnum=
3211: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
3212: unless (&allowed('mky',$cdom)) { return 0; }
3213: unless (($cdom) && ($cnum)) { return 0; }
3214: if ($number>10000) { return 0; }
3215: sleep(2); # make sure don't get same seed twice
3216: srand(time()^($$+($$<<15))); # from "Programming Perl"
3217: my $total=0;
3218: for (my $i=1;$i<=$number;$i++) {
3219: my $newkey=sprintf("%lx",int(100000*rand)).'-'.
3220: sprintf("%lx",int(100000*rand)).'-'.
3221: sprintf("%lx",int(100000*rand));
3222: $newkey=~s/1/g/g; # folks mix up 1 and l
3223: $newkey=~s/0/h/g; # and also 0 and O
3224: my %existing=&get('accesskeys',[$newkey],$cdom,$cnum);
3225: if ($existing{$newkey}) {
3226: $i--;
3227: } else {
3228: if (&put('accesskeys',
3229: { $newkey => '# generated '.localtime().
3230: ' by '.$env{'user.name'}.'@'.$env{'user.domain'}.
3231: '; '.$logentry },
3232: $cdom,$cnum) eq 'ok') {
3233: $total++;
3234: }
3235: }
3236: }
3237: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
3238: 'Generated '.$total.' keys for '.$cnum.' at '.$cdom);
3239: return $total;
3240: }
3241:
3242: # ------------------------------------------------------- Validate an accesskey
3243:
3244: sub validate_access_key {
3245: my ($ckey,$cdom,$cnum,$udom,$uname)=@_;
3246: $cdom=
3247: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
3248: $cnum=
3249: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
3250: $udom=$env{'user.domain'} unless (defined($udom));
3251: $uname=$env{'user.name'} unless (defined($uname));
3252: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
3253: return ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#/);
3254: }
3255:
3256: # ------------------------------------- Find the section of student in a course
3257: sub devalidate_getsection_cache {
3258: my ($udom,$unam,$courseid)=@_;
3259: my $hashid="$udom:$unam:$courseid";
3260: &devalidate_cache_new('getsection',$hashid);
3261: }
3262:
3263: sub courseid_to_courseurl {
3264: my ($courseid) = @_;
3265: #already url style courseid
3266: return $courseid if ($courseid =~ m{^/});
3267:
3268: if (exists($env{'course.'.$courseid.'.num'})) {
3269: my $cnum = $env{'course.'.$courseid.'.num'};
3270: my $cdom = $env{'course.'.$courseid.'.domain'};
3271: return "/$cdom/$cnum";
3272: }
3273:
3274: my %courseinfo=&coursedescription($courseid);
3275: if (exists($courseinfo{'num'})) {
3276: return "/$courseinfo{'domain'}/$courseinfo{'num'}";
3277: }
3278:
3279: return undef;
3280: }
3281:
3282: sub getsection {
3283: my ($udom,$unam,$courseid)=@_;
3284: my $cachetime=1800;
3285:
3286: my $hashid="$udom:$unam:$courseid";
3287: my ($result,$cached)=&is_cached_new('getsection',$hashid);
3288: if (defined($cached)) { return $result; }
3289:
3290: my %Pending;
3291: my %Expired;
3292: #
3293: # Each role can either have not started yet (pending), be active,
3294: # or have expired.
3295: #
3296: # If there is an active role, we are done.
3297: #
3298: # If there is more than one role which has not started yet,
3299: # choose the one which will start sooner
3300: # If there is one role which has not started yet, return it.
3301: #
3302: # If there is more than one expired role, choose the one which ended last.
3303: # If there is a role which has expired, return it.
3304: #
3305: $courseid = &courseid_to_courseurl($courseid);
3306: my %roleshash = &dump('roles',$udom,$unam,$courseid);
3307: foreach my $key (keys(%roleshash)) {
3308: next if ($key !~/^\Q$courseid\E(?:\/)*(\w+)*\_st$/);
3309: my $section=$1;
3310: if ($key eq $courseid.'_st') { $section=''; }
3311: my ($dummy,$end,$start)=split(/\_/,&unescape($roleshash{$key}));
3312: my $now=time;
3313: if (defined($end) && $end && ($now > $end)) {
3314: $Expired{$end}=$section;
3315: next;
3316: }
3317: if (defined($start) && $start && ($now < $start)) {
3318: $Pending{$start}=$section;
3319: next;
3320: }
3321: return &do_cache_new('getsection',$hashid,$section,$cachetime);
3322: }
3323: #
3324: # Presumedly there will be few matching roles from the above
3325: # loop and the sorting time will be negligible.
3326: if (scalar(keys(%Pending))) {
3327: my ($time) = sort {$a <=> $b} keys(%Pending);
3328: return &do_cache_new('getsection',$hashid,$Pending{$time},$cachetime);
3329: }
3330: if (scalar(keys(%Expired))) {
3331: my @sorted = sort {$a <=> $b} keys(%Expired);
3332: my $time = pop(@sorted);
3333: return &do_cache_new('getsection',$hashid,$Expired{$time},$cachetime);
3334: }
3335: return &do_cache_new('getsection',$hashid,'-1',$cachetime);
3336: }
3337:
3338: sub save_cache {
3339: &purge_remembered();
3340: #&Apache::loncommon::validate_page();
3341: undef(%env);
3342: undef($env_loaded);
3343: }
3344:
3345: my $to_remember=-1;
3346: my %remembered;
3347: my %accessed;
3348: my $kicks=0;
3349: my $hits=0;
3350: sub make_key {
3351: my ($name,$id) = @_;
3352: if (length($id) > 65
3353: && length(&escape($id)) > 200) {
3354: $id=length($id).':'.&Digest::MD5::md5_hex($id);
3355: }
3356: return &escape($name.':'.$id);
3357: }
3358:
3359: sub devalidate_cache_new {
3360: my ($name,$id,$debug) = @_;
3361: if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); }
3362: my $remembered_id=$name.':'.$id;
3363: $id=&make_key($name,$id);
3364: $memcache->delete($id);
3365: delete($remembered{$remembered_id});
3366: delete($accessed{$remembered_id});
3367: }
3368:
3369: sub is_cached_new {
3370: my ($name,$id,$debug) = @_;
3371: my $remembered_id=$name.':'.$id; # this is to avoid make_key (which is slow) whenever possible
3372: if (exists($remembered{$remembered_id})) {
3373: if ($debug) { &Apache::lonnet::logthis("Early return $remembered_id of $remembered{$remembered_id} "); }
3374: $accessed{$remembered_id}=[&gettimeofday()];
3375: $hits++;
3376: return ($remembered{$remembered_id},1);
3377: }
3378: $id=&make_key($name,$id);
3379: my $value = $memcache->get($id);
3380: if (!(defined($value))) {
3381: if ($debug) { &Apache::lonnet::logthis("getting $id is not defined"); }
3382: return (undef,undef);
3383: }
3384: if ($value eq '__undef__') {
3385: if ($debug) { &Apache::lonnet::logthis("getting $id is __undef__"); }
3386: $value=undef;
3387: }
3388: &make_room($remembered_id,$value,$debug);
3389: if ($debug) { &Apache::lonnet::logthis("getting $id is $value"); }
3390: return ($value,1);
3391: }
3392:
3393: sub do_cache_new {
3394: my ($name,$id,$value,$time,$debug) = @_;
3395: my $remembered_id=$name.':'.$id;
3396: $id=&make_key($name,$id);
3397: my $setvalue=$value;
3398: if (!defined($setvalue)) {
3399: $setvalue='__undef__';
3400: }
3401: if (!defined($time) ) {
3402: $time=600;
3403: }
3404: if ($debug) { &Apache::lonnet::logthis("Setting $id to $value"); }
3405: my $result = $memcache->set($id,$setvalue,$time);
3406: if (! $result) {
3407: &logthis("caching of id -> $id failed");
3408: $memcache->disconnect_all();
3409: }
3410: # need to make a copy of $value
3411: &make_room($remembered_id,$value,$debug);
3412: return $value;
3413: }
3414:
3415: sub make_room {
3416: my ($remembered_id,$value,$debug)=@_;
3417:
3418: $remembered{$remembered_id}= (ref($value)) ? &Storable::dclone($value)
3419: : $value;
3420: if ($to_remember<0) { return; }
3421: $accessed{$remembered_id}=[&gettimeofday()];
3422: if (scalar(keys(%remembered)) <= $to_remember) { return; }
3423: my $to_kick;
3424: my $max_time=0;
3425: foreach my $other (keys(%accessed)) {
3426: if (&tv_interval($accessed{$other}) > $max_time) {
3427: $to_kick=$other;
3428: $max_time=&tv_interval($accessed{$other});
3429: }
3430: }
3431: delete($remembered{$to_kick});
3432: delete($accessed{$to_kick});
3433: $kicks++;
3434: if ($debug) { &logthis("kicking $to_kick $max_time $kicks\n"); }
3435: return;
3436: }
3437:
3438: sub purge_remembered {
3439: #&logthis("Tossing ".scalar(keys(%remembered)));
3440: #&logthis(sprintf("%-20s is %s",'%remembered',length(&freeze(\%remembered))));
3441: undef(%remembered);
3442: undef(%accessed);
3443: }
3444: # ------------------------------------- Read an entry from a user's environment
3445:
3446: sub userenvironment {
3447: my ($udom,$unam,@what)=@_;
3448: my $items;
3449: foreach my $item (@what) {
3450: $items.=&escape($item).'&';
3451: }
3452: $items=~s/\&$//;
3453: my %returnhash=();
3454: my $uhome = &homeserver($unam,$udom);
3455: unless ($uhome eq 'no_host') {
3456: my @answer=split(/\&/,
3457: &reply('get:'.$udom.':'.$unam.':environment:'.$items,$uhome));
3458: if ($#answer==0 && $answer[0] =~ /^(con_lost|error:|no_such_host)/i) {
3459: return %returnhash;
3460: }
3461: my $i;
3462: for ($i=0;$i<=$#what;$i++) {
3463: $returnhash{$what[$i]}=&unescape($answer[$i]);
3464: }
3465: }
3466: return %returnhash;
3467: }
3468:
3469: # ---------------------------------------------------------- Get a studentphoto
3470: sub studentphoto {
3471: my ($udom,$unam,$ext) = @_;
3472: my $home=&homeserver($unam,$udom);
3473: if (defined($env{'request.course.id'})) {
3474: if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) {
3475: if ($udom eq $env{'course.'.$env{'request.course.id'}.'.domain'}) {
3476: return(&retrievestudentphoto($udom,$unam,$ext));
3477: } else {
3478: my ($result,$perm_reqd)=
3479: &auto_photo_permission($unam,$udom);
3480: if ($result eq 'ok') {
3481: if (!($perm_reqd eq 'yes')) {
3482: return(&retrievestudentphoto($udom,$unam,$ext));
3483: }
3484: }
3485: }
3486: }
3487: } else {
3488: my ($result,$perm_reqd) =
3489: &auto_photo_permission($unam,$udom);
3490: if ($result eq 'ok') {
3491: if (!($perm_reqd eq 'yes')) {
3492: return(&retrievestudentphoto($udom,$unam,$ext));
3493: }
3494: }
3495: }
3496: return '/adm/lonKaputt/lonlogo_broken.gif';
3497: }
3498:
3499: sub retrievestudentphoto {
3500: my ($udom,$unam,$ext,$type) = @_;
3501: my $home=&homeserver($unam,$udom);
3502: my $ret=&reply("studentphoto:$udom:$unam:$ext:$type",$home);
3503: if ($ret eq 'ok') {
3504: my $url="/uploaded/$udom/$unam/internal/studentphoto.$ext";
3505: if ($type eq 'thumbnail') {
3506: $url="/uploaded/$udom/$unam/internal/studentphoto_tn.$ext";
3507: }
3508: my $tokenurl=&tokenwrapper($url);
3509: return $tokenurl;
3510: } else {
3511: if ($type eq 'thumbnail') {
3512: return '/adm/lonKaputt/genericstudent_tn.gif';
3513: } else {
3514: return '/adm/lonKaputt/lonlogo_broken.gif';
3515: }
3516: }
3517: }
3518:
3519: # -------------------------------------------------------------------- New chat
3520:
3521: sub chatsend {
3522: my ($newentry,$anon,$group)=@_;
3523: my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
3524: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
3525: my $chome=$env{'course.'.$env{'request.course.id'}.'.home'};
3526: &reply('chatsend:'.$cdom.':'.$cnum.':'.
3527: &escape($env{'user.domain'}.':'.$env{'user.name'}.':'.$anon.':'.
3528: &escape($newentry)).':'.$group,$chome);
3529: }
3530:
3531: # ------------------------------------------ Find current version of a resource
3532:
3533: sub getversion {
3534: my $fname=&clutter(shift);
3535: unless ($fname=~m{^(/adm/wrapper|)/res/}) { return -1; }
3536: return ¤tversion(&filelocation('',$fname));
3537: }
3538:
3539: sub currentversion {
3540: my $fname=shift;
3541: my $author=$fname;
3542: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
3543: my ($udom,$uname)=split(/\//,$author);
3544: my $home=&homeserver($uname,$udom);
3545: if ($home eq 'no_host') {
3546: return -1;
3547: }
3548: my $answer=&reply("currentversion:$fname",$home);
3549: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
3550: return -1;
3551: }
3552: return $answer;
3553: }
3554:
3555: #
3556: # Return special version number of resource if set by override, empty otherwise
3557: #
3558: sub usedversion {
3559: my $fname=shift;
3560: unless ($fname) { $fname=$env{'request.uri'}; }
3561: my ($urlversion)=($fname=~/\.(\d+)\.\w+$/);
3562: if ($urlversion) { return $urlversion; }
3563: return '';
3564: }
3565:
3566: # ----------------------------- Subscribe to a resource, return URL if possible
3567:
3568: sub subscribe {
3569: my $fname=shift;
3570: if ($fname=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) { return ''; }
3571: $fname=~s/[\n\r]//g;
3572: my $author=$fname;
3573: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
3574: my ($udom,$uname)=split(/\//,$author);
3575: my $home=homeserver($uname,$udom);
3576: if ($home eq 'no_host') {
3577: return 'not_found';
3578: }
3579: my $answer=reply("sub:$fname",$home);
3580: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
3581: $answer.=' by '.$home;
3582: }
3583: return $answer;
3584: }
3585:
3586: # -------------------------------------------------------------- Replicate file
3587:
3588: sub repcopy {
3589: my $filename=shift;
3590: $filename=~s/\/+/\//g;
3591: my $londocroot = $perlvar{'lonDocRoot'};
3592: if ($filename=~m{^\Q$londocroot/adm/\E}) { return 'ok'; }
3593: if ($filename=~m{^\Q/home/httpd/lonUsers/\E}) { return 'ok'; }
3594: if ($filename=~m{^\Q$londocroot/userfiles/\E} or
3595: $filename=~m{^/*(uploaded|editupload)/}) {
3596: return &repcopy_userfile($filename);
3597: }
3598: $filename=~s/[\n\r]//g;
3599: my $transname="$filename.in.transfer";
3600: # FIXME: this should flock
3601: if ((-e $filename) || (-e $transname)) { return 'ok'; }
3602: my $remoteurl=subscribe($filename);
3603: if ($remoteurl =~ /^con_lost by/) {
3604: &logthis("Subscribe returned $remoteurl: $filename");
3605: return 'unavailable';
3606: } elsif ($remoteurl eq 'not_found') {
3607: #&logthis("Subscribe returned not_found: $filename");
3608: return 'not_found';
3609: } elsif ($remoteurl =~ /^rejected by/) {
3610: &logthis("Subscribe returned $remoteurl: $filename");
3611: return 'forbidden';
3612: } elsif ($remoteurl eq 'directory') {
3613: return 'ok';
3614: } else {
3615: my $author=$filename;
3616: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
3617: my ($udom,$uname)=split(/\//,$author);
3618: my $home=homeserver($uname,$udom);
3619: unless ($home eq $perlvar{'lonHostID'}) {
3620: my @parts=split(/\//,$filename);
3621: my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
3622: if ($path ne "$londocroot/res") {
3623: &logthis("Malconfiguration for replication: $filename");
3624: return 'bad_request';
3625: }
3626: my $count;
3627: for ($count=5;$count<$#parts;$count++) {
3628: $path.="/$parts[$count]";
3629: if ((-e $path)!=1) {
3630: mkdir($path,0777);
3631: }
3632: }
3633: my $request=new HTTP::Request('GET',"$remoteurl");
3634: my $response;
3635: if ($remoteurl =~ m{/raw/}) {
3636: $response=&LONCAPA::LWPReq::makerequest($home,$request,$transname,\%perlvar,'',0,1);
3637: } else {
3638: $response=&LONCAPA::LWPReq::makerequest($home,$request,$transname,\%perlvar,'',1);
3639: }
3640: if ($response->is_error()) {
3641: unlink($transname);
3642: my $message=$response->status_line;
3643: &logthis("<font color=\"blue\">WARNING:"
3644: ." LWP get: $message: $filename</font>");
3645: return 'unavailable';
3646: } else {
3647: if ($remoteurl!~/\.meta$/) {
3648: my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
3649: my $mresponse;
3650: if ($remoteurl =~ m{/raw/}) {
3651: $mresponse = &LONCAPA::LWPReq::makerequest($home,$mrequest,$filename.'.meta',\%perlvar,'',0,1);
3652: } else {
3653: $mresponse = &LONCAPA::LWPReq::makerequest($home,$mrequest,$filename.'.meta',\%perlvar,'',1);
3654: }
3655: if ($mresponse->is_error()) {
3656: unlink($filename.'.meta');
3657: &logthis(
3658: "<font color=\"yellow\">INFO: No metadata: $filename</font>");
3659: }
3660: }
3661: rename($transname,$filename);
3662: return 'ok';
3663: }
3664: }
3665: }
3666: }
3667:
3668: # ------------------------------------------------- Unsubscribe from a resource
3669:
3670: sub unsubscribe {
3671: my ($fname) = @_;
3672: my $answer;
3673: if ($fname=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) { return $answer; }
3674: $fname=~s/[\n\r]//g;
3675: my $author=$fname;
3676: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
3677: my ($udom,$uname)=split(/\//,$author);
3678: my $home=homeserver($uname,$udom);
3679: if ($home eq 'no_host') {
3680: $answer = 'no_host';
3681: } elsif (grep { $_ eq $home } ¤t_machine_ids()) {
3682: $answer = 'home';
3683: } else {
3684: my $defdom = $perlvar{'lonDefDomain'};
3685: if (&will_trust('content',$defdom,$udom)) {
3686: $answer = reply("unsub:$fname",$home);
3687: } else {
3688: $answer = 'untrusted';
3689: }
3690: }
3691: return $answer;
3692: }
3693:
3694: # ------------------------------------------------ Get server side include body
3695: sub ssi_body {
3696: my ($filelink,%form)=@_;
3697: if (! exists($form{'LONCAPA_INTERNAL_no_discussion'})) {
3698: $form{'LONCAPA_INTERNAL_no_discussion'}='true';
3699: }
3700: my $output='';
3701: my $response;
3702: if ($filelink=~/^https?\:/) {
3703: ($output,$response)=&externalssi($filelink);
3704: } else {
3705: $filelink .= $filelink=~/\?/ ? '&' : '?';
3706: $filelink .= 'inhibitmenu=yes';
3707: ($output,$response)=&ssi($filelink,%form);
3708: }
3709: $output=~s|//(\s*<!--)? BEGIN LON-CAPA Internal.+?// END LON-CAPA Internal\s*(-->)?\s||gs;
3710: $output=~s/^.*?\<body[^\>]*\>//si;
3711: $output=~s/\<\/body\s*\>.*?$//si;
3712: if (wantarray) {
3713: return ($output, $response);
3714: } else {
3715: return $output;
3716: }
3717: }
3718:
3719: # --------------------------------------------------------- Server Side Include
3720:
3721: sub absolute_url {
3722: my ($host_name,$unalias,$keep_proto) = @_;
3723: my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://');
3724: if ($host_name eq '') {
3725: $host_name = $ENV{'SERVER_NAME'};
3726: }
3727: if ($unalias) {
3728: my $alias = &get_proxy_alias();
3729: if ($alias eq $host_name) {
3730: my $lonhost = $perlvar{'lonHostID'};
3731: my $hostname = &hostname($lonhost);
3732: my $lcproto;
3733: if (($keep_proto) || ($hostname eq '')) {
3734: $lcproto = $protocol;
3735: } else {
3736: $lcproto = $protocol{$lonhost};
3737: $lcproto = 'http' if ($lcproto ne 'https');
3738: $lcproto .= '://';
3739: }
3740: unless ($hostname eq '') {
3741: return $lcproto.$hostname;
3742: }
3743: }
3744: }
3745: return $protocol.$host_name;
3746: }
3747:
3748: #
3749: # Server side include.
3750: # Parameters:
3751: # fn Possibly encrypted resource name/id.
3752: # form Hash that describes how the rendering should be done
3753: # and other things.
3754: # Returns:
3755: # Scalar context: The content of the response.
3756: # Array context: 2 element list of the content and the full response object.
3757: #
3758: sub ssi {
3759:
3760: my ($fn,%form)=@_;
3761: my ($host,$request,$response);
3762: $host = &absolute_url('',1);
3763:
3764: $form{'no_update_last_known'}=1;
3765: &Apache::lonenc::check_encrypt(\$fn);
3766: if (%form) {
3767: $request=new HTTP::Request('POST',$host.$fn);
3768: $request->content(join('&',map {
3769: my $name = escape($_);
3770: "$name=" . ( ref($form{$_}) eq 'ARRAY'
3771: ? join("&$name=", map {escape($_) } @{$form{$_}})
3772: : &escape($form{$_}) );
3773: } keys(%form)));
3774: } else {
3775: $request=new HTTP::Request('GET',$host.$fn);
3776: }
3777:
3778: $request->header(Cookie => $ENV{'HTTP_COOKIE'});
3779: my $lonhost = $perlvar{'lonHostID'};
3780: my $islocal;
3781: if (($env{'request.course.id'}) &&
3782: ($form{'grade_courseid'} eq $env{'request.course.id'}) &&
3783: ($form{'grade_username'} ne '') && ($form{'grade_domain'} ne '') &&
3784: ($form{'grade_symb'} ne '') &&
3785: (&allowed('mgr',$env{'request.course.id'}.
3786: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')))) {
3787: $islocal = 1;
3788: }
3789: $response= &LONCAPA::LWPReq::makerequest($lonhost,$request,'',\%perlvar,
3790: '','','',$islocal);
3791:
3792: if (wantarray) {
3793: return ($response->content, $response);
3794: } else {
3795: return $response->content;
3796: }
3797: }
3798:
3799: sub externalssi {
3800: my ($url)=@_;
3801: my $request=new HTTP::Request('GET',$url);
3802: my $response = &LONCAPA::LWPReq::makerequest('',$request,'',\%perlvar);
3803: if (wantarray) {
3804: return ($response->content, $response);
3805: } else {
3806: return $response->content;
3807: }
3808: }
3809:
3810:
3811: # If the local copy of a replicated resource is outdated, trigger a
3812: # connection from the homeserver to flush the delayed queue. If no update
3813: # happens, remove local copies of outdated resource (and corresponding
3814: # metadata file).
3815:
3816: sub remove_stale_resfile {
3817: my ($url) = @_;
3818: my $removed;
3819: if ($url=~m{^/res/($match_domain)/($match_username)/}) {
3820: my $audom = $1;
3821: my $auname = $2;
3822: unless (($url =~ /\.\d+\.\w+$/) || ($url =~ m{^/res/lib/templates/})) {
3823: my $homeserver = &homeserver($auname,$audom);
3824: unless (($homeserver eq 'no_host') ||
3825: (grep { $_ eq $homeserver } ¤t_machine_ids())) {
3826: my $fname = &filelocation('',$url);
3827: if (-e $fname) {
3828: my $hostname = &hostname($homeserver);
3829: if ($hostname) {
3830: my $protocol = $protocol{$homeserver};
3831: $protocol = 'http' if ($protocol ne 'https');
3832: my $uri = &declutter($url);
3833: my $request=new HTTP::Request('HEAD',$protocol.'://'.$hostname.'/raw/'.$uri);
3834: my $response = &LONCAPA::LWPReq::makerequest($homeserver,$request,'',\%perlvar,5,0,1);
3835: if ($response->is_success()) {
3836: my $remmodtime = &HTTP::Date::str2time( $response->header('Last-modified') );
3837: my $locmodtime = (stat($fname))[9];
3838: if ($locmodtime < $remmodtime) {
3839: my $stale;
3840: my $answer = &reply('pong',$homeserver);
3841: if ($answer eq $homeserver.':'.$perlvar{'lonHostID'}) {
3842: sleep(0.2);
3843: $locmodtime = (stat($fname))[9];
3844: if ($locmodtime < $remmodtime) {
3845: my $posstransfer = $fname.'.in.transfer';
3846: if ((-e $posstransfer) && ($remmodtime < (stat($posstransfer))[9])) {
3847: $removed = 1;
3848: } else {
3849: $stale = 1;
3850: }
3851: } else {
3852: $removed = 1;
3853: }
3854: } else {
3855: $stale = 1;
3856: }
3857: if ($stale) {
3858: if (unlink($fname)) {
3859: if ($uri!~/\.meta$/) {
3860: if (-e $fname.'.meta') {
3861: unlink($fname.'.meta');
3862: }
3863: }
3864: my $unsubresult = &unsubscribe($fname);
3865: unless ($unsubresult eq 'ok') {
3866: &logthis("no unsub of $fname from $homeserver, reason: $unsubresult");
3867: }
3868: $removed = 1;
3869: }
3870: }
3871: }
3872: }
3873: }
3874: }
3875: }
3876: }
3877: }
3878: return $removed;
3879: }
3880:
3881: # -------------------------------- Allow a /uploaded/ URI to be vouched for
3882:
3883: sub allowuploaded {
3884: my ($srcurl,$url)=@_;
3885: $url=&clutter(&declutter($url));
3886: my $dir=$url;
3887: $dir=~s/\/[^\/]+$//;
3888: my %httpref=();
3889: my $httpurl=&hreflocation('',$url);
3890: $httpref{'httpref.'.$httpurl}=$srcurl;
3891: &Apache::lonnet::appenv(\%httpref);
3892: }
3893:
3894: #
3895: # Determine if the current user should be able to edit a particular resource,
3896: # when viewing in course context.
3897: # (a) When viewing resource used to determine if "Edit" item is included in
3898: # Functions.
3899: # (b) When displaying folder contents in course editor, used to determine if
3900: # "Edit" link will be displayed alongside resource.
3901: #
3902: # input: six args -- filename (decluttered), course number, course domain,
3903: # url, symb (if registered) and group (if this is a group
3904: # item -- e.g., bulletin board, group page etc.).
3905: # output: array of five scalars --
3906: # $cfile -- url for file editing if editable on current server
3907: # $home -- homeserver of resource (i.e., for author if published,
3908: # or course if uploaded.).
3909: # $switchserver -- 1 if server switch will be needed.
3910: # $forceedit -- 1 if icon/link should be to go to edit mode
3911: # $forceview -- 1 if icon/link should be to go to view mode
3912: #
3913:
3914: sub can_edit_resource {
3915: my ($file,$cnum,$cdom,$resurl,$symb,$group) = @_;
3916: my ($cfile,$home,$switchserver,$forceedit,$forceview,$uploaded,$incourse);
3917: #
3918: # For aboutme pages user can only edit his/her own.
3919: #
3920: if ($resurl =~ m{^/?adm/($match_domain)/($match_username)/aboutme$}) {
3921: my ($sdom,$sname) = ($1,$2);
3922: if (($sdom eq $env{'user.domain'}) && ($sname eq $env{'user.name'})) {
3923: $home = $env{'user.home'};
3924: $cfile = $resurl;
3925: if ($env{'form.forceedit'}) {
3926: $forceview = 1;
3927: } else {
3928: $forceedit = 1;
3929: }
3930: return ($cfile,$home,$switchserver,$forceedit,$forceview);
3931: } else {
3932: return;
3933: }
3934: }
3935:
3936: #
3937: # For /adm/viewcoauthors can only edit if author or co-author who is manager.
3938: #
3939:
3940: if (($resurl eq '/adm/viewcoauthors') && ($cnum ne '') && ($cdom ne '')) {
3941: if (((&allowed('cca',"$cdom/$cnum")) ||
3942: (&allowed('caa',"$cdom/$cnum"))) ||
3943: ((&allowed('vca',"$cdom/$cnum") ||
3944: &allowed('vaa',"$cdom/$cnum")) &&
3945: ($env{"environment.internal.manager./$cdom/$cnum"}))) {
3946: $home = $env{'user.home'};
3947: $cfile = $resurl;
3948: if ($env{'form.forceedit'}) {
3949: $forceview = 1;
3950: } else {
3951: $forceedit = 1;
3952: }
3953: return ($cfile,$home,$switchserver,$forceedit,$forceview);
3954: } else {
3955: return;
3956: }
3957: }
3958:
3959: if ($env{'request.course.id'}) {
3960: my $crsedit = &allowed('mdc',$env{'request.course.id'});
3961: if ($group ne '') {
3962: # if this is a group homepage or group bulletin board, check group privs
3963: my $allowed = 0;
3964: if ($resurl =~ m{^/?adm/$cdom/$cnum/$group/smppg$}) {
3965: if ((&allowed('mdg',$env{'request.course.id'}.
3966: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) ||
3967: (&allowed('mgh',$env{'request.course.id'}.'/'.$group)) || $crsedit) {
3968: $allowed = 1;
3969: }
3970: } elsif ($resurl =~ m{^/?adm/$cdom/$cnum/\d+/bulletinboard$}) {
3971: if ((&allowed('mdg',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) ||
3972: (&allowed('cgb',$env{'request.course.id'}.'/'.$group)) || $crsedit) {
3973: $allowed = 1;
3974: }
3975: }
3976: if ($allowed) {
3977: $home=&homeserver($cnum,$cdom);
3978: if ($env{'form.forceedit'}) {
3979: $forceview = 1;
3980: } else {
3981: $forceedit = 1;
3982: }
3983: $cfile = $resurl;
3984: } else {
3985: return;
3986: }
3987: } else {
3988: if ($resurl =~ m{^/?adm/viewclasslist$}) {
3989: unless (&allowed('opa',$env{'request.course.id'})) {
3990: return;
3991: }
3992: } elsif (!$crsedit) {
3993: if ($env{'request.role'} =~ m{^st\./$cdom/$cnum}) {
3994: #
3995: # No edit allowed where CC has switched to student role.
3996: #
3997: return;
3998: } elsif (($resurl !~ m{^/res/$match_domain/$match_username/}) ||
3999: ($resurl =~ m{^/res/lib/templates/})) {
4000: return;
4001: }
4002: }
4003: }
4004: }
4005:
4006: if ($file ne '') {
4007: if (($cnum =~ /$match_courseid/) && ($cdom =~ /$match_domain/)) {
4008: if (&is_course_upload($file,$cnum,$cdom)) {
4009: $uploaded = 1;
4010: $incourse = 1;
4011: if ($file =~/\.(htm|html|css|js|txt)$/) {
4012: $cfile = &hreflocation('',$file);
4013: if ($env{'form.forceedit'}) {
4014: $forceview = 1;
4015: } else {
4016: $forceedit = 1;
4017: }
4018: }
4019: } elsif ($resurl =~ m{^/public/$cdom/$cnum/syllabus}) {
4020: $incourse = 1;
4021: if ($env{'form.forceedit'}) {
4022: $forceview = 1;
4023: } else {
4024: $forceedit = 1;
4025: }
4026: $cfile = $resurl;
4027: } elsif (($resurl ne '') && (&is_on_map($resurl))) {
4028: if ($resurl =~ m{^/adm/$match_domain/$match_username/\d+/smppg|bulletinboard$}) {
4029: $incourse = 1;
4030: if ($env{'form.forceedit'}) {
4031: $forceview = 1;
4032: } else {
4033: $forceedit = 1;
4034: }
4035: $cfile = $resurl;
4036: } elsif ($resurl eq '/res/lib/templates/simpleproblem.problem') {
4037: $incourse = 1;
4038: $cfile = $resurl.'/smpedit';
4039: } elsif ($resurl =~ m{^/adm/wrapper/ext/}) {
4040: $incourse = 1;
4041: if ($env{'form.forceedit'}) {
4042: $forceview = 1;
4043: } else {
4044: $forceedit = 1;
4045: }
4046: $cfile = $resurl;
4047: } elsif (($resurl =~ m{^/ext/}) && ($symb ne '')) {
4048: my ($map,$id,$res) = &decode_symb($symb);
4049: if ($map =~ /\.page$/) {
4050: $incourse = 1;
4051: if ($env{'form.forceedit'}) {
4052: $forceview = 1;
4053: $cfile = $map;
4054: } else {
4055: $forceedit = 1;
4056: $cfile = '/adm/wrapper'.$resurl;
4057: }
4058: }
4059: } elsif ($resurl =~ m{^/adm/wrapper/adm/$cdom/$cnum/\d+/ext\.tool$}) {
4060: $incourse = 1;
4061: if ($env{'form.forceedit'}) {
4062: $forceview = 1;
4063: } else {
4064: $forceedit = 1;
4065: }
4066: $cfile = $resurl;
4067: } elsif ($resurl =~ m{^/?adm/viewclasslist$}) {
4068: $incourse = 1;
4069: if ($env{'form.forceedit'}) {
4070: $forceview = 1;
4071: } else {
4072: $forceedit = 1;
4073: }
4074: $cfile = ($resurl =~ m{^/} ? $resurl : "/$resurl");
4075: }
4076: } elsif ($resurl eq '/res/lib/templates/simpleproblem.problem/smpedit') {
4077: my $template = '/res/lib/templates/simpleproblem.problem';
4078: if (&is_on_map($template)) {
4079: $incourse = 1;
4080: $forceview = 1;
4081: $cfile = $template;
4082: }
4083: } elsif (($resurl =~ m{^/adm/wrapper/ext/}) && ($env{'form.folderpath'} =~ /^supplemental/)) {
4084: $incourse = 1;
4085: if ($env{'form.forceedit'}) {
4086: $forceview = 1;
4087: } else {
4088: $forceedit = 1;
4089: }
4090: $cfile = $resurl;
4091: } elsif (($resurl =~ m{^/adm/wrapper/adm/$cdom/$cnum/\d+/ext\.tool$}) && ($env{'form.folderpath'} =~ /^supplemental/)) {
4092: $incourse = 1;
4093: if ($env{'form.forceedit'}) {
4094: $forceview = 1;
4095: } else {
4096: $forceedit = 1;
4097: }
4098: $cfile = $resurl;
4099: } elsif (($resurl eq '/adm/extresedit') && ($symb || $env{'form.folderpath'})) {
4100: $incourse = 1;
4101: $forceview = 1;
4102: if ($symb) {
4103: my ($map,$id,$res)=&decode_symb($symb);
4104: $env{'request.symb'} = $symb;
4105: $cfile = &clutter($res);
4106: } else {
4107: $cfile = $env{'form.suppurl'};
4108: my $escfile = &unescape($cfile);
4109: if ($escfile =~ m{^/adm/$cdom/$cnum/\d+/ext\.tool$}) {
4110: $cfile = '/adm/wrapper'.$escfile;
4111: } else {
4112: $escfile =~ s{^http://}{};
4113: $cfile = &escape("/adm/wrapper/ext/$escfile");
4114: }
4115: }
4116: } elsif ($resurl =~ m{^/?adm/viewclasslist$}) {
4117: if ($env{'form.forceedit'}) {
4118: $forceview = 1;
4119: } else {
4120: $forceedit = 1;
4121: }
4122: $cfile = ($resurl =~ m{^/} ? $resurl : "/$resurl");
4123: }
4124: }
4125: if ($uploaded || $incourse) {
4126: $home=&homeserver($cnum,$cdom);
4127: } elsif ($file !~ m{/$}) {
4128: $file=~s{^(priv/$match_domain/$match_username)}{/$1};
4129: $file=~s{^($match_domain/$match_username)}{/priv/$1};
4130: # Check that the user has permission to edit this resource
4131: my $setpriv = 1;
4132: my ($cfuname,$cfudom)=&constructaccess($file,$setpriv);
4133: if (defined($cfudom)) {
4134: $home=&homeserver($cfuname,$cfudom);
4135: $cfile=$file;
4136: }
4137: }
4138: if (($cfile ne '') && (!$incourse || $uploaded) &&
4139: (($home ne '') && ($home ne 'no_host'))) {
4140: my @ids=¤t_machine_ids();
4141: unless (grep(/^\Q$home\E$/,@ids)) {
4142: $switchserver=1;
4143: }
4144: }
4145: }
4146: return ($cfile,$home,$switchserver,$forceedit,$forceview);
4147: }
4148:
4149: sub is_course_upload {
4150: my ($file,$cnum,$cdom) = @_;
4151: my $uploadpath = &LONCAPA::propath($cdom,$cnum);
4152: $uploadpath =~ s{^\/}{};
4153: if (($file =~ m{^\Q$uploadpath\E/userfiles/(docs|supplemental)/}) ||
4154: ($file =~ m{^userfiles/\Q$cdom\E/\Q$cnum\E/(docs|supplemental)/})) {
4155: return 1;
4156: }
4157: return;
4158: }
4159:
4160: sub in_course {
4161: my ($udom,$uname,$cdom,$cnum,$type,$hideprivileged) = @_;
4162: if ($hideprivileged) {
4163: my $skipuser;
4164: my %coursehash = &coursedescription($cdom.'_'.$cnum);
4165: my @possdoms = ($cdom);
4166: if ($coursehash{'checkforpriv'}) {
4167: push(@possdoms,split(/,/,$coursehash{'checkforpriv'}));
4168: }
4169: if (&privileged($uname,$udom,\@possdoms)) {
4170: $skipuser = 1;
4171: if ($coursehash{'nothideprivileged'}) {
4172: foreach my $item (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
4173: my $user;
4174: if ($item =~ /:/) {
4175: $user = $item;
4176: } else {
4177: $user = join(':',split(/[\@]/,$item));
4178: }
4179: if ($user eq $uname.':'.$udom) {
4180: undef($skipuser);
4181: last;
4182: }
4183: }
4184: }
4185: if ($skipuser) {
4186: return 0;
4187: }
4188: }
4189: }
4190: $type ||= 'any';
4191: if (!defined($cdom) || !defined($cnum)) {
4192: my $cid = $env{'request.course.id'};
4193: $cdom = $env{'course.'.$cid.'.domain'};
4194: $cnum = $env{'course.'.$cid.'.num'};
4195: }
4196: my $typesref;
4197: if (($type eq 'any') || ($type eq 'all')) {
4198: $typesref = ['active','previous','future'];
4199: } elsif ($type eq 'previous' || $type eq 'future') {
4200: $typesref = [$type];
4201: }
4202: my %roles = &get_my_roles($uname,$udom,'userroles',
4203: $typesref,undef,[$cdom]);
4204: my ($tmp) = keys(%roles);
4205: return 0 if ($tmp =~ /^(con_lost|error|no_such_host)/i);
4206: my @course_roles = grep(/^\Q$cnum\E:\Q$cdom\E:/, keys(%roles));
4207: if (@course_roles > 0) {
4208: return 1;
4209: }
4210: return 0;
4211: }
4212:
4213: # --------- File operations in /home/httpd/html/userfiles/$domain/1/2/3/$course
4214: # input: action, courseID, current domain, intended
4215: # path to file, source of file, instruction to parse file for objects,
4216: # ref to hash for embedded objects,
4217: # ref to hash for codebase of java objects.
4218: # reference to scalar to accommodate mime type determined
4219: # from File::MMagic if $parser = parse.
4220: #
4221: # output: url to file (if action was uploaddoc),
4222: # ok if successful, or diagnostic message otherwise (if action was propagate or copy)
4223: #
4224: # Allows directory structure to be used within lonUsers/../userfiles/ for a
4225: # course.
4226: #
4227: # action = propagate - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
4228: # will be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles in
4229: # course's home server.
4230: #
4231: # action = copy - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file will
4232: # be copied from $source (current location) to
4233: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
4234: # and will then be copied to
4235: # /home/httpd/lonUsers/$domain/1/2/3/$course/userfiles/$file in
4236: # course's home server.
4237: #
4238: # action = uploaddoc - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
4239: # will be retrived from $env{form.uploaddoc} (from DOCS interface) to
4240: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
4241: # and will then be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles/$file
4242: # in course's home server.
4243: #
4244:
4245: sub process_coursefile {
4246: my ($action,$docuname,$docudom,$file,$source,$parser,$allfiles,$codebase,
4247: $mimetype)=@_;
4248: my $fetchresult;
4249: my $home=&homeserver($docuname,$docudom);
4250: if ($action eq 'propagate') {
4251: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
4252: $home);
4253: } else {
4254: my $fpath = '';
4255: my $fname = $file;
4256: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
4257: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
4258: my $filepath = &build_filepath($fpath);
4259: if ($action eq 'copy') {
4260: if ($source eq '') {
4261: $fetchresult = 'no source file';
4262: return $fetchresult;
4263: } else {
4264: my $destination = $filepath.'/'.$fname;
4265: rename($source,$destination);
4266: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
4267: $home);
4268: }
4269: } elsif ($action eq 'uploaddoc') {
4270: open(my $fh,'>',$filepath.'/'.$fname);
4271: print $fh $env{'form.'.$source};
4272: close($fh);
4273: if ($parser eq 'parse') {
4274: my $mm = new File::MMagic;
4275: my $type = $mm->checktype_filename($filepath.'/'.$fname);
4276: if ($type eq 'text/html') {
4277: my $parse_result = &extract_embedded_items($filepath.'/'.$fname,$allfiles,$codebase);
4278: unless ($parse_result eq 'ok') {
4279: &logthis('Failed to parse '.$filepath.'/'.$fname.' for embedded media: '.$parse_result);
4280: }
4281: }
4282: if (ref($mimetype)) {
4283: $$mimetype = $type;
4284: }
4285: }
4286: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
4287: $home);
4288: if ($fetchresult eq 'ok') {
4289: return '/uploaded/'.$fpath.'/'.$fname;
4290: } else {
4291: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
4292: ' to host '.$home.': '.$fetchresult);
4293: return '/adm/notfound.html';
4294: }
4295: }
4296: }
4297: unless ( $fetchresult eq 'ok') {
4298: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
4299: ' to host '.$home.': '.$fetchresult);
4300: }
4301: return $fetchresult;
4302: }
4303:
4304: sub build_filepath {
4305: my ($fpath) = @_;
4306: my $filepath=$perlvar{'lonDocRoot'}.'/userfiles';
4307: unless ($fpath eq '') {
4308: my @parts=split('/',$fpath);
4309: foreach my $part (@parts) {
4310: $filepath.= '/'.$part;
4311: if ((-e $filepath)!=1) {
4312: mkdir($filepath,0777);
4313: }
4314: }
4315: }
4316: return $filepath;
4317: }
4318:
4319: sub store_edited_file {
4320: my ($primary_url,$content,$docudom,$docuname,$fetchresult) = @_;
4321: my $file = $primary_url;
4322: $file =~ s#^/uploaded/$docudom/$docuname/##;
4323: my $fpath = '';
4324: my $fname = $file;
4325: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
4326: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
4327: my $filepath = &build_filepath($fpath);
4328: open(my $fh,'>',$filepath.'/'.$fname);
4329: print $fh $content;
4330: close($fh);
4331: my $home=&homeserver($docuname,$docudom);
4332: $$fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
4333: $home);
4334: if ($$fetchresult eq 'ok') {
4335: return '/uploaded/'.$fpath.'/'.$fname;
4336: } else {
4337: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
4338: ' to host '.$home.': '.$$fetchresult);
4339: return '/adm/notfound.html';
4340: }
4341: }
4342:
4343: sub clean_filename {
4344: my ($fname,$args)=@_;
4345: # Replace Windows backslashes by forward slashes
4346: $fname=~s/\\/\//g;
4347: if (!$args->{'keep_path'}) {
4348: # Get rid of everything but the actual filename
4349: $fname=~s/^.*\/([^\/]+)$/$1/;
4350: }
4351: # Replace spaces by underscores
4352: $fname=~s/\s+/\_/g;
4353: # Transliterate non-ascii text to ascii
4354: my $lang = &Apache::lonlocal::current_language();
4355: $fname = &LONCAPA::transliterate::fname_to_ascii($fname,$lang);
4356: # Replace all other weird characters by nothing
4357: $fname=~s{[^/\w\.\-]}{}g;
4358: # Replace all .\d. sequences with _\d. so they no longer look like version
4359: # numbers
4360: $fname=~s/\.(\d+)(?=\.)/_$1/g;
4361: # Replace three or more adjacent underscores with one for consistency
4362: # with loncfile::filename_check() so complete url can be extracted by
4363: # lonnet::decode_symb()
4364: $fname=~s/_{3,}/_/g;
4365: return $fname;
4366: }
4367:
4368: # This Function checks if an Image's dimensions exceed either $resizewidth (width)
4369: # or $resizeheight (height) - both pixels. If so, the image is scaled to produce an
4370: # image with the same aspect ratio as the original, but with dimensions which do
4371: # not exceed $resizewidth and $resizeheight.
4372:
4373: sub resizeImage {
4374: my ($img_path,$resizewidth,$resizeheight) = @_;
4375: my $ima = Image::Magick->new;
4376: my $resized;
4377: if (-e $img_path) {
4378: $ima->Read($img_path);
4379: if (($resizewidth =~ /^\d+$/) && ($resizeheight > 0)) {
4380: my $width = $ima->Get('width');
4381: my $height = $ima->Get('height');
4382: if ($width > $resizewidth) {
4383: my $factor = $width/$resizewidth;
4384: my $newheight = $height/$factor;
4385: $ima->Scale(width=>$resizewidth,height=>$newheight);
4386: $resized = 1;
4387: }
4388: }
4389: if (($resizeheight =~ /^\d+$/) && ($resizeheight > 0)) {
4390: my $width = $ima->Get('width');
4391: my $height = $ima->Get('height');
4392: if ($height > $resizeheight) {
4393: my $factor = $height/$resizeheight;
4394: my $newwidth = $width/$factor;
4395: $ima->Scale(width=>$newwidth,height=>$resizeheight);
4396: $resized = 1;
4397: }
4398: }
4399: if ($resized) {
4400: $ima->Write($img_path);
4401: }
4402: }
4403: return;
4404: }
4405:
4406: # --------------- Take an uploaded file and put it into the userfiles directory
4407: # input: $formname - the contents of the file are in $env{"form.$formname"}
4408: # the desired filename is in $env{"form.$formname.filename"}
4409: # $context - possible values: coursedoc, existingfile, overwrite,
4410: # canceloverwrite, scantron, toollogo or ''.
4411: # if 'coursedoc': upload to the current course
4412: # if 'existingfile': write file to tmp/overwrites directory
4413: # if 'canceloverwrite': delete file written to tmp/overwrites directory
4414: # $context is passed as argument to &finishuserfileupload
4415: # $subdir - directory in userfile to store the file into
4416: # $parser - instruction to parse file for objects ($parser = parse) or
4417: # if context is 'scantron', $parser is hashref of csv column mapping
4418: # (e.g.,{ PaperID => 0, LastName => 1, FirstName => 2, ID => 3,
4419: # Section => 4, CODE => 5, FirstQuestion => 9 }).
4420: # $allfiles - reference to hash for embedded objects
4421: # $codebase - reference to hash for codebase of java objects
4422: # $destuname - username for permanent storage of uploaded file
4423: # $destudom - domain for permanaent storage of uploaded file
4424: # $thumbwidth - width (pixels) of thumbnail to make for uploaded image
4425: # $thumbheight - height (pixels) of thumbnail to make for uploaded image
4426: # $resizewidth - width (pixels) to which to resize uploaded image
4427: # $resizeheight - height (pixels) to which to resize uploaded image
4428: # $mimetype - reference to scalar to accommodate mime type determined
4429: # from File::MMagic.
4430: #
4431: # output: url of file in userspace, or error: <message>
4432: # or /adm/notfound.html if failure to upload occurse
4433:
4434: sub userfileupload {
4435: my ($formname,$context,$subdir,$parser,$allfiles,$codebase,$destuname,
4436: $destudom,$thumbwidth,$thumbheight,$resizewidth,$resizeheight,$mimetype)=@_;
4437: if (!defined($subdir)) { $subdir='unknown'; }
4438: my $fname=$env{'form.'.$formname.'.filename'};
4439: $fname=&clean_filename($fname);
4440: # See if there is anything left
4441: unless ($fname) { return 'error: no uploaded file'; }
4442: # If filename now begins with a . prepend unix timestamp _ milliseconds
4443: if ($fname =~ /^\./) {
4444: my ($s,$usec) = &gettimeofday();
4445: while (length($usec) < 6) {
4446: $usec = '0'.$usec;
4447: }
4448: $fname = $s.'_'.substr($usec,0,3).$fname;
4449: }
4450: # Files uploaded to help request form, or uploaded to "create course" page are handled differently
4451: if ((($formname eq 'screenshot') && ($subdir eq 'helprequests')) ||
4452: (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) ||
4453: ($context eq 'existingfile') || ($context eq 'canceloverwrite')) {
4454: my $now = time;
4455: my $filepath;
4456: if (($formname eq 'screenshot') && ($subdir eq 'helprequests')) {
4457: $filepath = 'tmp/helprequests/'.$now;
4458: } elsif (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) {
4459: $filepath = 'tmp/addcourse/'.$destudom.'/web/'.$env{'user.name'}.
4460: '_'.$env{'user.domain'}.'/pending';
4461: } elsif (($context eq 'existingfile') || ($context eq 'canceloverwrite')) {
4462: my ($docuname,$docudom);
4463: if ($destudom =~ /^$match_domain$/) {
4464: $docudom = $destudom;
4465: } else {
4466: $docudom = $env{'user.domain'};
4467: }
4468: if ($destuname =~ /^$match_username$/) {
4469: $docuname = $destuname;
4470: } else {
4471: $docuname = $env{'user.name'};
4472: }
4473: if (exists($env{'form.group'})) {
4474: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
4475: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
4476: }
4477: $filepath = 'tmp/overwrites/'.$docudom.'/'.$docuname.'/'.$subdir;
4478: if ($context eq 'canceloverwrite') {
4479: my $tempfile = $perlvar{'lonDaemons'}.'/'.$filepath.'/'.$fname;
4480: if (-e $tempfile) {
4481: my @info = stat($tempfile);
4482: if ($info[9] eq $env{'form.timestamp'}) {
4483: unlink($tempfile);
4484: }
4485: }
4486: return;
4487: }
4488: }
4489: # Create the directory if not present
4490: my @parts=split(/\//,$filepath);
4491: my $fullpath = $perlvar{'lonDaemons'};
4492: for (my $i=0;$i<@parts;$i++) {
4493: $fullpath .= '/'.$parts[$i];
4494: if ((-e $fullpath)!=1) {
4495: mkdir($fullpath,0777);
4496: }
4497: }
4498: open(my $fh,'>',$fullpath.'/'.$fname);
4499: print $fh $env{'form.'.$formname};
4500: close($fh);
4501: if ($context eq 'existingfile') {
4502: my @info = stat($fullpath.'/'.$fname);
4503: return ($fullpath.'/'.$fname,$info[9]);
4504: } else {
4505: return $fullpath.'/'.$fname;
4506: }
4507: }
4508: if ($subdir eq 'scantron') {
4509: $fname = 'scantron_orig_'.$fname;
4510: } else {
4511: $fname="$subdir/$fname";
4512: }
4513: if ($context eq 'coursedoc') {
4514: my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
4515: my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
4516: if ($env{'form.folder'} =~ m/^(default|supplemental)/) {
4517: return &finishuserfileupload($docuname,$docudom,
4518: $formname,$fname,$parser,$allfiles,
4519: $codebase,$thumbwidth,$thumbheight,
4520: $resizewidth,$resizeheight,$context,$mimetype);
4521: } else {
4522: if ($env{'form.folder'}) {
4523: $fname=$env{'form.folder'}.'/'.$fname;
4524: }
4525: return &process_coursefile('uploaddoc',$docuname,$docudom,
4526: $fname,$formname,$parser,
4527: $allfiles,$codebase,$mimetype);
4528: }
4529: } elsif (defined($destuname)) {
4530: my $docuname=$destuname;
4531: my $docudom=$destudom;
4532: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
4533: $parser,$allfiles,$codebase,
4534: $thumbwidth,$thumbheight,
4535: $resizewidth,$resizeheight,$context,$mimetype);
4536: } else {
4537: my $docuname=$env{'user.name'};
4538: my $docudom=$env{'user.domain'};
4539: if ((exists($env{'form.group'})) || ($context eq 'syllabus')) {
4540: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
4541: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
4542: }
4543: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
4544: $parser,$allfiles,$codebase,
4545: $thumbwidth,$thumbheight,
4546: $resizewidth,$resizeheight,$context,$mimetype);
4547: }
4548: }
4549:
4550: sub finishuserfileupload {
4551: my ($docuname,$docudom,$formname,$fname,$parser,$allfiles,$codebase,
4552: $thumbwidth,$thumbheight,$resizewidth,$resizeheight,$context,$mimetype) = @_;
4553: my $path=$docudom.'/'.$docuname.'/';
4554: my $filepath=$perlvar{'lonDocRoot'};
4555:
4556: my ($fnamepath,$file,$fetchthumb);
4557: $file=$fname;
4558: if ($fname=~m|/|) {
4559: ($fnamepath,$file) = ($fname =~ m|^(.*)/([^/]+)$|);
4560: $path.=$fnamepath.'/';
4561: }
4562: my @parts=split(/\//,$filepath.'/userfiles/'.$path);
4563: my $count;
4564: for ($count=4;$count<=$#parts;$count++) {
4565: $filepath.="/$parts[$count]";
4566: if ((-e $filepath)!=1) {
4567: mkdir($filepath,0777);
4568: }
4569: }
4570:
4571: # Save the file
4572: {
4573: if (!open(FH,'>',$filepath.'/'.$file)) {
4574: &logthis('Failed to create '.$filepath.'/'.$file);
4575: print STDERR ('Failed to create '.$filepath.'/'.$file."\n");
4576: return '/adm/notfound.html';
4577: }
4578: if ($context eq 'overwrite') {
4579: my $source = LONCAPA::tempdir().'/overwrites/'.$docudom.'/'.$docuname.'/'.$fname;
4580: my $target = $filepath.'/'.$file;
4581: if (-e $source) {
4582: my @info = stat($source);
4583: if ($info[9] eq $env{'form.timestamp'}) {
4584: unless (&File::Copy::move($source,$target)) {
4585: &logthis('Failed to overwrite '.$filepath.'/'.$file);
4586: return "Moving from $source failed";
4587: }
4588: } else {
4589: return "Temporary file: $source had unexpected date/time for last modification";
4590: }
4591: } else {
4592: return "Temporary file: $source missing";
4593: }
4594: } elsif (!print FH ($env{'form.'.$formname})) {
4595: &logthis('Failed to write to '.$filepath.'/'.$file);
4596: print STDERR ('Failed to write to '.$filepath.'/'.$file."\n");
4597: return '/adm/notfound.html';
4598: }
4599: close(FH);
4600: if ($resizewidth && $resizeheight) {
4601: my $mm = new File::MMagic;
4602: my $mime_type = $mm->checktype_filename($filepath.'/'.$file);
4603: if ($mime_type =~ m{^image/}) {
4604: &resizeImage($filepath.'/'.$file,$resizewidth,$resizeheight);
4605: }
4606: }
4607: }
4608: if (($context eq 'coursedoc') || ($parser eq 'parse')) {
4609: if (ref($mimetype)) {
4610: if ($$mimetype eq '') {
4611: my $mm = new File::MMagic;
4612: my $type = $mm->checktype_filename($filepath.'/'.$file);
4613: $$mimetype = $type;
4614: }
4615: }
4616: }
4617: if (($context ne 'scantron') && ($parser eq 'parse')) {
4618: if ((ref($mimetype)) && ($$mimetype eq 'text/html')) {
4619: my $parse_result = &extract_embedded_items($filepath.'/'.$file,
4620: $allfiles,$codebase);
4621: unless ($parse_result eq 'ok') {
4622: &logthis('Failed to parse '.$filepath.$file.
4623: ' for embedded media: '.$parse_result);
4624: }
4625: }
4626: } elsif (($context eq 'scantron') && (ref($parser) eq 'HASH')) {
4627: my $format = $env{'form.scantron_format'};
4628: &bubblesheet_converter($docudom,$filepath.'/'.$file,$parser,$format);
4629: }
4630: if (($thumbwidth =~ /^\d+$/) && ($thumbheight =~ /^\d+$/)) {
4631: my $input = $filepath.'/'.$file;
4632: my $output = $filepath.'/'.'tn-'.$file;
4633: my $makethumb;
4634: my $thumbsize = $thumbwidth.'x'.$thumbheight;
4635: if ($context eq 'toollogo') {
4636: my ($fullwidth,$fullheight) = &check_dimensions($input);
4637: if ($fullwidth ne '' && $fullheight ne '') {
4638: if ($fullwidth > $thumbwidth && $fullheight > $thumbheight) {
4639: $makethumb = 1;
4640: }
4641: }
4642: } else {
4643: $makethumb = 1;
4644: }
4645: if ($makethumb) {
4646: my @args = ('convert','-sample',$thumbsize,$input,$output);
4647: system({$args[0]} @args);
4648: if (-e $filepath.'/'.'tn-'.$file) {
4649: $fetchthumb = 1;
4650: }
4651: }
4652: }
4653:
4654: # Notify homeserver to grep it
4655: #
4656: my $docuhome=&homeserver($docuname,$docudom);
4657: my $fetchresult= &reply('fetchuserfile:'.$path.$file,$docuhome);
4658: if ($fetchresult eq 'ok') {
4659: if ($fetchthumb) {
4660: my $thumbresult= &reply('fetchuserfile:'.$path.'tn-'.$file,$docuhome);
4661: if ($thumbresult ne 'ok') {
4662: &logthis('Failed to transfer '.$path.'tn-'.$file.' to host '.
4663: $docuhome.': '.$thumbresult);
4664: }
4665: }
4666: #
4667: # Return the URL to it
4668: return '/uploaded/'.$path.$file;
4669: } else {
4670: &logthis('Failed to transfer '.$path.$file.' to host '.$docuhome.
4671: ': '.$fetchresult);
4672: return '/adm/notfound.html';
4673: }
4674: }
4675:
4676: sub extract_embedded_items {
4677: my ($fullpath,$allfiles,$codebase,$content) = @_;
4678: my @state = ();
4679: my (%lastids,%related,%shockwave,%flashvars);
4680: my %javafiles = (
4681: codebase => '',
4682: code => '',
4683: archive => ''
4684: );
4685: my %mediafiles = (
4686: src => '',
4687: movie => '',
4688: );
4689: my $p;
4690: if ($content) {
4691: $p = HTML::LCParser->new($content);
4692: } else {
4693: $p = HTML::LCParser->new($fullpath);
4694: }
4695: while (my $t=$p->get_token()) {
4696: if ($t->[0] eq 'S') {
4697: my ($tagname, $attr) = ($t->[1],$t->[2]);
4698: push(@state, $tagname);
4699: if (lc($tagname) eq 'allow') {
4700: &add_filetype($allfiles,$attr->{'src'},'src');
4701: }
4702: if (lc($tagname) eq 'img') {
4703: &add_filetype($allfiles,$attr->{'src'},'src');
4704: }
4705: if (lc($tagname) eq 'a') {
4706: unless (($attr->{'href'} =~ /^#/) || ($attr->{'href'} eq '')) {
4707: &add_filetype($allfiles,$attr->{'href'},'href');
4708: }
4709: }
4710: if (lc($tagname) eq 'script') {
4711: my $src;
4712: if ($attr->{'archive'} =~ /\.jar$/i) {
4713: &add_filetype($allfiles,$attr->{'archive'},'archive');
4714: } else {
4715: if ($attr->{'src'} ne '') {
4716: $src = $attr->{'src'};
4717: &add_filetype($allfiles,$src,'src');
4718: }
4719: }
4720: my $text = $p->get_trimmed_text();
4721: if ($text =~ /\Qswfobject.registerObject(\E([^\)]+)\)/) {
4722: my @swfargs = split(/,/,$1);
4723: foreach my $item (@swfargs) {
4724: $item =~ s/["']//g;
4725: $item =~ s/^\s+//;
4726: $item =~ s/\s+$//;
4727: }
4728: if (($swfargs[0] ne'') && ($swfargs[2] ne '')) {
4729: if (ref($related{$swfargs[0]}) eq 'ARRAY') {
4730: push(@{$related{$swfargs[0]}},$swfargs[2]);
4731: } else {
4732: $related{$swfargs[0]} = [$swfargs[2]];
4733: }
4734: }
4735: }
4736: }
4737: if (lc($tagname) eq 'link') {
4738: if (lc($attr->{'rel'}) eq 'stylesheet') {
4739: &add_filetype($allfiles,$attr->{'href'},'href');
4740: }
4741: }
4742: if (lc($tagname) eq 'object' ||
4743: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')) {
4744: foreach my $item (keys(%javafiles)) {
4745: $javafiles{$item} = '';
4746: }
4747: if ((lc($tagname) eq 'object') && (lc($state[-2]) ne 'object')) {
4748: $lastids{lc($tagname)} = $attr->{'id'};
4749: }
4750: }
4751: if (lc($state[-2]) eq 'object' && lc($tagname) eq 'param') {
4752: my $name = lc($attr->{'name'});
4753: foreach my $item (keys(%javafiles)) {
4754: if ($name eq $item) {
4755: $javafiles{$item} = $attr->{'value'};
4756: last;
4757: }
4758: }
4759: my $pathfrom;
4760: foreach my $item (keys(%mediafiles)) {
4761: if ($name eq $item) {
4762: $pathfrom = $attr->{'value'};
4763: $shockwave{$lastids{lc($state[-2])}} = $pathfrom;
4764: &add_filetype($allfiles,$pathfrom,$name);
4765: last;
4766: }
4767: }
4768: if ($name eq 'flashvars') {
4769: $flashvars{$lastids{lc($state[-2])}} = $attr->{'value'};
4770: }
4771: if ($pathfrom ne '') {
4772: &embedded_dependency($allfiles,\%related,$lastids{lc($state[-2])},
4773: $pathfrom);
4774: }
4775: }
4776: if (lc($tagname) eq 'embed' || lc($tagname) eq 'applet') {
4777: foreach my $item (keys(%javafiles)) {
4778: if ($attr->{$item}) {
4779: $javafiles{$item} = $attr->{$item};
4780: last;
4781: }
4782: }
4783: foreach my $item (keys(%mediafiles)) {
4784: if ($attr->{$item}) {
4785: &add_filetype($allfiles,$attr->{$item},$item);
4786: last;
4787: }
4788: }
4789: if (lc($tagname) eq 'embed') {
4790: if (($attr->{'name'} ne '') && ($attr->{'src'} ne '')) {
4791: &embedded_dependency($allfiles,\%related,$attr->{'name'},
4792: $attr->{'src'});
4793: }
4794: }
4795: }
4796: if (lc($tagname) eq 'iframe') {
4797: my $src = $attr->{'src'} ;
4798: if (($src ne '') && ($src !~ m{^(/|https?://)})) {
4799: &add_filetype($allfiles,$src,'src');
4800: } elsif ($src =~ m{^/}) {
4801: if ($env{'request.course.id'}) {
4802: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
4803: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
4804: my $url = &hreflocation('',$fullpath);
4805: if ($url =~ m{^/uploaded/$cdom/$cnum/docs/(\w+/\d+)/}) {
4806: my $relpath = $1;
4807: if ($src =~ m{^/uploaded/$cdom/$cnum/docs/\Q$relpath\E/(.+)$}) {
4808: &add_filetype($allfiles,$1,'src');
4809: }
4810: }
4811: }
4812: }
4813: }
4814: if ($t->[4] =~ m{/>$}) {
4815: pop(@state);
4816: }
4817: } elsif ($t->[0] eq 'E') {
4818: my ($tagname) = ($t->[1]);
4819: if ($javafiles{'codebase'} ne '') {
4820: $javafiles{'codebase'} .= '/';
4821: }
4822: if (lc($tagname) eq 'applet' ||
4823: lc($tagname) eq 'object' ||
4824: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')
4825: ) {
4826: foreach my $item (keys(%javafiles)) {
4827: if ($item ne 'codebase' && $javafiles{$item} ne '') {
4828: my $file=$javafiles{'codebase'}.$javafiles{$item};
4829: &add_filetype($allfiles,$file,$item);
4830: }
4831: }
4832: }
4833: pop @state;
4834: }
4835: }
4836: foreach my $id (sort(keys(%flashvars))) {
4837: if ($shockwave{$id} ne '') {
4838: my @pairs = split(/\&/,$flashvars{$id});
4839: foreach my $pair (@pairs) {
4840: my ($key,$value) = split(/\=/,$pair);
4841: if ($key eq 'thumb') {
4842: &add_filetype($allfiles,$value,$key);
4843: } elsif ($key eq 'content') {
4844: my ($path) = ($shockwave{$id} =~ m{^(.+/)[^/]+$});
4845: my ($ext) = ($value =~ /\.([^.]+)$/);
4846: if ($ext ne '') {
4847: &add_filetype($allfiles,$path.$value,$ext);
4848: }
4849: }
4850: }
4851: }
4852: }
4853: return 'ok';
4854: }
4855:
4856: sub add_filetype {
4857: my ($allfiles,$file,$type)=@_;
4858: if (exists($allfiles->{$file})) {
4859: unless (grep/^\Q$type\E$/, @{$allfiles->{$file}}) {
4860: push(@{$allfiles->{$file}}, &escape($type));
4861: }
4862: } else {
4863: @{$allfiles->{$file}} = (&escape($type));
4864: }
4865: }
4866:
4867: sub embedded_dependency {
4868: my ($allfiles,$related,$identifier,$pathfrom) = @_;
4869: if ((ref($allfiles) eq 'HASH') && (ref($related) eq 'HASH')) {
4870: if (($identifier ne '') &&
4871: (ref($related->{$identifier}) eq 'ARRAY') &&
4872: ($pathfrom ne '')) {
4873: my ($path) = ($pathfrom =~ m{^(.+/)[^/]+$});
4874: foreach my $dep (@{$related->{$identifier}}) {
4875: &add_filetype($allfiles,$path.$dep,'object');
4876: }
4877: }
4878: }
4879: return;
4880: }
4881:
4882: sub check_dimensions {
4883: my ($inputfile) = @_;
4884: my ($fullwidth,$fullheight);
4885: if (($inputfile =~ m|^[/\w.\-]+$|) && (-e $inputfile)) {
4886: my $mm = new File::MMagic;
4887: my $mime_type = $mm->checktype_filename($inputfile);
4888: if ($mime_type =~ m{^image/}) {
4889: if (open(PIPE,"identify $inputfile 2>&1 |")) {
4890: my $imageinfo = <PIPE>;
4891: if (!close(PIPE)) {
4892: &Apache::lonnet::logthis("Failed to close PIPE opened to retrieve image information for $inputfile");
4893: }
4894: chomp($imageinfo);
4895: my ($fullsize) =
4896: ($imageinfo =~ /^\Q$inputfile\E\s+\w+\s+(\d+x\d+)/);
4897: if ($fullsize) {
4898: ($fullwidth,$fullheight) = split(/x/,$fullsize);
4899: }
4900: }
4901: }
4902: }
4903: return ($fullwidth,$fullheight);
4904: }
4905:
4906: sub bubblesheet_converter {
4907: my ($cdom,$fullpath,$config,$format) = @_;
4908: if ((&domain($cdom) ne '') &&
4909: ($fullpath =~ m{^\Q$perlvar{'lonDocRoot'}/userfiles/$cdom/\E$match_courseid/scantron_orig}) &&
4910: (-e $fullpath) && (ref($config) eq 'HASH') && ($format ne '')) {
4911: my (%csvcols,%csvoptions);
4912: if (ref($config->{'fields'}) eq 'HASH') {
4913: %csvcols = %{$config->{'fields'}};
4914: }
4915: if (ref($config->{'options'}) eq 'HASH') {
4916: %csvoptions = %{$config->{'options'}};
4917: }
4918: my %csvbynum = reverse(%csvcols);
4919: my %scantronconf = &get_scantron_config($format,$cdom);
4920: if (keys(%scantronconf)) {
4921: my %bynum = (
4922: $scantronconf{CODEstart} => 'CODEstart',
4923: $scantronconf{IDstart} => 'IDstart',
4924: $scantronconf{PaperID} => 'PaperID',
4925: $scantronconf{FirstName} => 'FirstName',
4926: $scantronconf{LastName} => 'LastName',
4927: $scantronconf{Qstart} => 'Qstart',
4928: );
4929: my @ordered;
4930: foreach my $item (sort { $a <=> $b } keys(%bynum)) {
4931: push(@ordered,$bynum{$item});
4932: }
4933: my %mapstart = (
4934: CODEstart => 'CODE',
4935: IDstart => 'ID',
4936: PaperID => 'PaperID',
4937: FirstName => 'FirstName',
4938: LastName => 'LastName',
4939: Qstart => 'FirstQuestion',
4940: );
4941: my %maplength = (
4942: CODEstart => 'CODElength',
4943: IDstart => 'IDlength',
4944: PaperID => 'PaperIDlength',
4945: FirstName => 'FirstNamelength',
4946: LastName => 'LastNamelength',
4947: );
4948: if (open(my $fh,'<',$fullpath)) {
4949: my $output;
4950: my %lettdig = &letter_to_digits();
4951: my %diglett = reverse(%lettdig);
4952: my $numletts = scalar(keys(%lettdig));
4953: my $num = 0;
4954: while (my $line=<$fh>) {
4955: $num ++;
4956: next if (($num == 1) && ($csvoptions{'hdr'} == 1));
4957: $line =~ s{[\r\n]+$}{};
4958: my %found;
4959: my @values = split(/,/,$line,-1);
4960: my ($qstart,$record);
4961: for (my $i=0; $i<@values; $i++) {
4962: if ((($qstart ne '') && ($i > $qstart)) ||
4963: ($csvbynum{$i} eq 'FirstQuestion')) {
4964: if ($values[$i] eq '') {
4965: $values[$i] = $scantronconf{'Qoff'};
4966: } elsif ($scantronconf{'Qon'} eq 'number') {
4967: if ($values[$i] =~ /^[A-Ja-j]$/) {
4968: $values[$i] = $lettdig{uc($values[$i])};
4969: }
4970: } elsif ($scantronconf{'Qon'} eq 'letter') {
4971: if ($values[$i] =~ /^[0-9]$/) {
4972: $values[$i] = $diglett{$values[$i]};
4973: }
4974: } else {
4975: if ($values[$i] =~ /^[0-9A-Ja-j]$/) {
4976: my $digit;
4977: if ($values[$i] =~ /^[A-Ja-j]$/) {
4978: $digit = $lettdig{uc($values[$i])}-1;
4979: if ($values[$i] eq 'J') {
4980: $digit += $numletts;
4981: }
4982: } elsif ($values[$i] =~ /^[0-9]$/) {
4983: $digit = $values[$i]-1;
4984: if ($values[$i] eq '0') {
4985: $digit += $numletts;
4986: }
4987: }
4988: my $qval='';
4989: for (my $j=0; $j<$scantronconf{'Qlength'}; $j++) {
4990: if ($j == $digit) {
4991: $qval .= $scantronconf{'Qon'};
4992: } else {
4993: $qval .= $scantronconf{'Qoff'};
4994: }
4995: }
4996: $values[$i] = $qval;
4997: }
4998: }
4999: if (length($values[$i]) > $scantronconf{'Qlength'}) {
5000: $values[$i] = substr($values[$i],0,$scantronconf{'Qlength'});
5001: }
5002: my $numblank = $scantronconf{'Qlength'} - length($values[$i]);
5003: if ($numblank > 0) {
5004: $values[$i] .= ($scantronconf{'Qoff'} x $numblank);
5005: }
5006: if ($csvbynum{$i} eq 'FirstQuestion') {
5007: $qstart = $i;
5008: $found{$csvbynum{$i}} = $values[$i];
5009: } else {
5010: $found{'FirstQuestion'} .= $values[$i];
5011: }
5012: } elsif (exists($csvbynum{$i})) {
5013: if ($csvoptions{'rem'}) {
5014: $values[$i] =~ s/^\s+//;
5015: }
5016: if (($csvbynum{$i} eq 'PaperID') && ($csvoptions{'pad'})) {
5017: while (length($values[$i]) < $scantronconf{$maplength{$csvbynum{$i}}}) {
5018: $values[$i] = '0'.$values[$i];
5019: }
5020: }
5021: $found{$csvbynum{$i}} = $values[$i];
5022: }
5023: }
5024: foreach my $item (@ordered) {
5025: my $currlength = 1+length($record);
5026: my $numspaces = $scantronconf{$item} - $currlength;
5027: if ($numspaces > 0) {
5028: $record .= (' ' x $numspaces);
5029: }
5030: if (($mapstart{$item} ne '') && (exists($found{$mapstart{$item}}))) {
5031: unless ($item eq 'Qstart') {
5032: if (length($found{$mapstart{$item}}) > $scantronconf{$maplength{$item}}) {
5033: $found{$mapstart{$item}} = substr($found{$mapstart{$item}},0,$scantronconf{$maplength{$item}});
5034: }
5035: }
5036: $record .= $found{$mapstart{$item}};
5037: }
5038: }
5039: $output .= "$record\n";
5040: }
5041: close($fh);
5042: if ($output) {
5043: if (open(my $fh,'>',$fullpath)) {
5044: print $fh $output;
5045: close($fh);
5046: }
5047: }
5048: }
5049: }
5050: return;
5051: }
5052: }
5053:
5054: sub letter_to_digits {
5055: my %lettdig = (
5056: A => 1,
5057: B => 2,
5058: C => 3,
5059: D => 4,
5060: E => 5,
5061: F => 6,
5062: G => 7,
5063: H => 8,
5064: I => 9,
5065: J => 0,
5066: );
5067: return %lettdig;
5068: }
5069:
5070: sub get_scantron_config {
5071: my ($which,$cdom) = @_;
5072: my @lines = &get_scantronformat_file($cdom);
5073: my %config;
5074: #FIXME probably should move to XML it has already gotten a bit much now
5075: foreach my $line (@lines) {
5076: my ($name,$descrip)=split(/:/,$line);
5077: if ($name ne $which ) { next; }
5078: chomp($line);
5079: my @config=split(/:/,$line);
5080: $config{'name'}=$config[0];
5081: $config{'description'}=$config[1];
5082: $config{'CODElocation'}=$config[2];
5083: $config{'CODEstart'}=$config[3];
5084: $config{'CODElength'}=$config[4];
5085: $config{'IDstart'}=$config[5];
5086: $config{'IDlength'}=$config[6];
5087: $config{'Qstart'}=$config[7];
5088: $config{'Qlength'}=$config[8];
5089: $config{'Qoff'}=$config[9];
5090: $config{'Qon'}=$config[10];
5091: $config{'PaperID'}=$config[11];
5092: $config{'PaperIDlength'}=$config[12];
5093: $config{'FirstName'}=$config[13];
5094: $config{'FirstNamelength'}=$config[14];
5095: $config{'LastName'}=$config[15];
5096: $config{'LastNamelength'}=$config[16];
5097: $config{'BubblesPerRow'}=$config[17];
5098: last;
5099: }
5100: return %config;
5101: }
5102:
5103: sub get_scantronformat_file {
5104: my ($cdom) = @_;
5105: if ($cdom eq '') {
5106: $cdom= $env{'course.'.$env{'request.course.id'}.'.domain'};
5107: }
5108: my %domconfig = &get_dom('configuration',['scantron'],$cdom);
5109: my $gottab = 0;
5110: my @lines;
5111: if (ref($domconfig{'scantron'}) eq 'HASH') {
5112: if ($domconfig{'scantron'}{'scantronformat'} ne '') {
5113: my $formatfile = &getfile($perlvar{'lonDocRoot'}.$domconfig{'scantron'}{'scantronformat'});
5114: if ($formatfile ne '-1') {
5115: @lines = split("\n",$formatfile,-1);
5116: $gottab = 1;
5117: }
5118: }
5119: }
5120: if (!$gottab) {
5121: my $confname = $cdom.'-domainconfig';
5122: my $default = $perlvar{'lonDocRoot'}.'/res/'.$cdom.'/'.$confname.'/default.tab';
5123: my $formatfile = &getfile($default);
5124: if ($formatfile ne '-1') {
5125: @lines = split("\n",$formatfile,-1);
5126: $gottab = 1;
5127: }
5128: }
5129: if (!$gottab) {
5130: my @domains = ¤t_machine_domains();
5131: if (grep(/^\Q$cdom\E$/,@domains)) {
5132: if (open(my $fh,'<',$perlvar{'lonTabDir'}.'/scantronformat.tab')) {
5133: @lines = <$fh>;
5134: close($fh);
5135: }
5136: } else {
5137: if (open(my $fh,'<',$perlvar{'lonTabDir'}.'/default_scantronformat.tab')) {
5138: @lines = <$fh>;
5139: close($fh);
5140: }
5141: }
5142: chomp(@lines);
5143: }
5144: return @lines;
5145: }
5146:
5147: sub removeuploadedurl {
5148: my ($url)=@_;
5149: my (undef,undef,$udom,$uname,$fname)=split('/',$url,5);
5150: return &removeuserfile($uname,$udom,$fname);
5151: }
5152:
5153: sub removeuserfile {
5154: my ($docuname,$docudom,$fname)=@_;
5155: my $home=&homeserver($docuname,$docudom);
5156: my $result = &reply("removeuserfile:$docudom/$docuname/$fname",$home);
5157: if ($result eq 'ok') {
5158: if (($fname !~ /\.meta$/) && (&is_portfolio_file($fname))) {
5159: my $metafile = $fname.'.meta';
5160: my $metaresult = &removeuserfile($docuname,$docudom,$metafile);
5161: my $url = "/uploaded/$docudom/$docuname/$fname";
5162: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
5163: my $sqlresult =
5164: &update_portfolio_table($docuname,$docudom,$file,
5165: 'portfolio_metadata',$group,
5166: 'delete');
5167: }
5168: }
5169: return $result;
5170: }
5171:
5172: sub mkdiruserfile {
5173: my ($docuname,$docudom,$dir)=@_;
5174: my $home=&homeserver($docuname,$docudom);
5175: return &reply("mkdiruserfile:".&escape("$docudom/$docuname/$dir"),$home);
5176: }
5177:
5178: sub renameuserfile {
5179: my ($docuname,$docudom,$old,$new)=@_;
5180: my $home=&homeserver($docuname,$docudom);
5181: my $result = &reply("renameuserfile:$docudom:$docuname:".
5182: &escape("$old").':'.&escape("$new"),$home);
5183: if ($result eq 'ok') {
5184: if (($old !~ /\.meta$/) && (&is_portfolio_file($old))) {
5185: my $oldmeta = $old.'.meta';
5186: my $newmeta = $new.'.meta';
5187: my $metaresult =
5188: &renameuserfile($docuname,$docudom,$oldmeta,$newmeta);
5189: my $url = "/uploaded/$docudom/$docuname/$old";
5190: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
5191: my $sqlresult =
5192: &update_portfolio_table($docuname,$docudom,$file,
5193: 'portfolio_metadata',$group,
5194: 'delete');
5195: }
5196: }
5197: return $result;
5198: }
5199:
5200: # ------------------------------------------------------------------------- Log
5201:
5202: sub log {
5203: my ($dom,$nam,$hom,$what)=@_;
5204: return critical("log:$dom:$nam:$what",$hom);
5205: }
5206:
5207: # ------------------------------------------------------------------ Course Log
5208: #
5209: # This routine flushes several buffers of non-mission-critical nature
5210: #
5211:
5212: sub flushcourselogs {
5213: &logthis('Flushing log buffers');
5214: #
5215: # course logs
5216: # This is a log of all transactions in a course, which can be used
5217: # for data mining purposes
5218: #
5219: # It also collects the courseid database, which lists last transaction
5220: # times and course titles for all courseids
5221: #
5222: my %courseidbuffer=();
5223: foreach my $crsid (keys(%courselogs)) {
5224: if (&reply('log:'.$coursedombuf{$crsid}.':'.$coursenumbuf{$crsid}.':'.
5225: &escape($courselogs{$crsid}),
5226: $coursehombuf{$crsid}) eq 'ok') {
5227: delete $courselogs{$crsid};
5228: } else {
5229: &logthis('Failed to flush log buffer for '.$crsid);
5230: if (length($courselogs{$crsid})>40000) {
5231: &logthis("<font color=\"blue\">WARNING: Buffer for ".$crsid.
5232: " exceeded maximum size, deleting.</font>");
5233: delete $courselogs{$crsid};
5234: }
5235: }
5236: $courseidbuffer{$coursehombuf{$crsid}}{$crsid} = {
5237: 'description' => $coursedescrbuf{$crsid},
5238: 'inst_code' => $courseinstcodebuf{$crsid},
5239: 'type' => $coursetypebuf{$crsid},
5240: 'owner' => $courseownerbuf{$crsid},
5241: };
5242: }
5243: #
5244: # Write course id database (reverse lookup) to homeserver of courses
5245: # Is used in pickcourse
5246: #
5247: foreach my $crs_home (keys(%courseidbuffer)) {
5248: my $response = &courseidput(&host_domain($crs_home),
5249: $courseidbuffer{$crs_home},
5250: $crs_home,'timeonly');
5251: }
5252: #
5253: # File accesses
5254: # Writes to the dynamic metadata of resources to get hit counts, etc.
5255: #
5256: foreach my $entry (keys(%accesshash)) {
5257: if ($entry =~ /___count$/) {
5258: my ($dom,$name);
5259: ($dom,$name,undef)=
5260: ($entry=~m{___($match_domain)/($match_name)/(.*)___count$});
5261: if (! defined($dom) || $dom eq '' ||
5262: ! defined($name) || $name eq '') {
5263: my $cid = $env{'request.course.id'};
5264: #
5265: # FIXME 11/29/2021
5266: # Typo in rev. 1.458 (2003/12/09)??
5267: # These should likely by $env{'course.'.$cid.'.domain'} and $env{'course.'.$cid.'.num'}
5268: #
5269: # While these remain as $env{'request.'.$cid.'.domain'} and $env{'request.'.$cid.'.num'}
5270: # $dom and $name will always be null, so the &inc() call will default to storing this data
5271: # in a nohist_accesscount.db file for the user rather than the course.
5272: #
5273: # That said there is a lot of noise in the data being stored.
5274: # So counts for prtspool/ and adm/ etc. are recorded.
5275: #
5276: # A review of which items ending '___count' are written to %accesshash should likely be
5277: # made before deciding whether to set these to 'course.' instead of 'request.'
5278: #
5279: # Under the current scheme each user receives a nohist_accesscount.db file listing
5280: # accesses for things which are not published resources, regardless of course, and
5281: # there is not a nohist_accesscount.db file in a course, which might log accesses from
5282: # anyone in the course for things which are not published resources.
5283: #
5284: # For an author, nohist_accesscount.db ends up having records for other items
5285: # mixed up with the legitimate access counts for the author's published resources.
5286: #
5287: $dom = $env{'request.'.$cid.'.domain'};
5288: $name = $env{'request.'.$cid.'.num'};
5289: }
5290: my $value = $accesshash{$entry};
5291: my (undef,$url,undef) = ($entry =~ /^(.*)___(.*)___count$/);
5292: my %temphash=($url => $value);
5293: my $result = &inc('nohist_accesscount',\%temphash,$dom,$name);
5294: if ($result eq 'ok') {
5295: delete $accesshash{$entry};
5296: }
5297: } else {
5298: my ($dom,$name) = ($entry=~m{___($match_domain)/($match_name)/(.*)___(\w+)$});
5299: if (($dom eq 'uploaded') || ($dom eq 'adm')) { next; }
5300: my %temphash=($entry => $accesshash{$entry});
5301: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
5302: delete $accesshash{$entry};
5303: }
5304: }
5305: }
5306: #
5307: # Roles
5308: # Reverse lookup of user roles for course faculty/staff and co-authorship
5309: #
5310: foreach my $entry (keys(%userrolehash)) {
5311: my ($role,$uname,$udom,$runame,$rudom,$rsec)=
5312: split(/\:/,$entry);
5313: if (&put('nohist_userroles',
5314: { $role.':'.$uname.':'.$udom.':'.$rsec => $userrolehash{$entry} },
5315: $rudom,$runame) eq 'ok') {
5316: delete $userrolehash{$entry};
5317: }
5318: }
5319: #
5320: # Reverse lookup of domain roles (dc, ad, li, sc, dh, da, au)
5321: #
5322: my %domrolebuffer = ();
5323: foreach my $entry (keys(%domainrolehash)) {
5324: my ($role,$uname,$udom,$runame,$rudom,$rsec)=split(/:/,$entry);
5325: if ($domrolebuffer{$rudom}) {
5326: $domrolebuffer{$rudom}.='&'.&escape($entry).
5327: '='.&escape($domainrolehash{$entry});
5328: } else {
5329: $domrolebuffer{$rudom}.=&escape($entry).
5330: '='.&escape($domainrolehash{$entry});
5331: }
5332: delete $domainrolehash{$entry};
5333: }
5334: foreach my $dom (keys(%domrolebuffer)) {
5335: my %servers;
5336: if (defined(&domain($dom,'primary'))) {
5337: my $primary=&domain($dom,'primary');
5338: my $hostname=&hostname($primary);
5339: $servers{$primary} = $hostname;
5340: } else {
5341: %servers = &get_servers($dom,'library');
5342: }
5343: foreach my $tryserver (keys(%servers)) {
5344: if (&reply('domroleput:'.$dom.':'.
5345: $domrolebuffer{$dom},$tryserver) eq 'ok') {
5346: last;
5347: } else {
5348: &logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);
5349: }
5350: }
5351: }
5352: $dumpcount++;
5353: }
5354:
5355: sub courselog {
5356: my $what=shift;
5357: $what=time.':'.$what;
5358: unless ($env{'request.course.id'}) { return ''; }
5359: $coursedombuf{$env{'request.course.id'}}=
5360: $env{'course.'.$env{'request.course.id'}.'.domain'};
5361: $coursenumbuf{$env{'request.course.id'}}=
5362: $env{'course.'.$env{'request.course.id'}.'.num'};
5363: $coursehombuf{$env{'request.course.id'}}=
5364: $env{'course.'.$env{'request.course.id'}.'.home'};
5365: $coursedescrbuf{$env{'request.course.id'}}=
5366: $env{'course.'.$env{'request.course.id'}.'.description'};
5367: $courseinstcodebuf{$env{'request.course.id'}}=
5368: $env{'course.'.$env{'request.course.id'}.'.internal.coursecode'};
5369: $courseownerbuf{$env{'request.course.id'}}=
5370: $env{'course.'.$env{'request.course.id'}.'.internal.courseowner'};
5371: $coursetypebuf{$env{'request.course.id'}}=
5372: $env{'course.'.$env{'request.course.id'}.'.type'};
5373: if (defined $courselogs{$env{'request.course.id'}}) {
5374: $courselogs{$env{'request.course.id'}}.='&'.$what;
5375: } else {
5376: $courselogs{$env{'request.course.id'}}.=$what;
5377: }
5378: if (length($courselogs{$env{'request.course.id'}})>4048) {
5379: &flushcourselogs();
5380: }
5381: }
5382:
5383: sub courseacclog {
5384: my $fnsymb=shift;
5385: unless ($env{'request.course.id'}) { return ''; }
5386: my $what=$fnsymb.':'.$env{'user.name'}.':'.$env{'user.domain'};
5387: if ($fnsymb=~/$LONCAPA::assess_re/) {
5388: $what.=':POST';
5389: # FIXME: Probably ought to escape things....
5390: foreach my $key (keys(%env)) {
5391: if ($key=~/^form\.(.*)/) {
5392: my $formitem = $1;
5393: if ($formitem =~ /^HWFILE(?:SIZE|TOOBIG)/) {
5394: $what.=':'.$formitem.'='.$env{$key};
5395: } elsif ($formitem !~ /^HWFILE(?:[^.]+)$/) {
5396: if ($formitem eq 'proctorpassword') {
5397: $what.=':'.$formitem.'=' . '*' x length($env{$key});
5398: } else {
5399: $what.=':'.$formitem.'='.$env{$key};
5400: }
5401: }
5402: }
5403: }
5404: } elsif ($fnsymb =~ m:^/adm/searchcat:) {
5405: # FIXME: We should not be depending on a form parameter that someone
5406: # editing lonsearchcat.pm might change in the future.
5407: if ($env{'form.phase'} eq 'course_search') {
5408: $what.= ':POST';
5409: # FIXME: Probably ought to escape things....
5410: foreach my $element ('courseexp','crsfulltext','crsrelated',
5411: 'crsdiscuss') {
5412: $what.=':'.$element.'='.$env{'form.'.$element};
5413: }
5414: }
5415: }
5416: &courselog($what);
5417: }
5418:
5419: sub countacc {
5420: my $url=&declutter(shift);
5421: return if (! defined($url) || $url eq '');
5422: unless ($env{'request.course.id'}) { return ''; }
5423: #
5424: # Mark that this url was used in this course
5425: #
5426: $accesshash{$env{'request.course.id'}.'___'.$url.'___course'}=1;
5427: #
5428: # Increase the access count for this resource in this child process
5429: #
5430: my $key=$$.$processmarker.'_'.$dumpcount.'___'.$url.'___count';
5431: $accesshash{$key}++;
5432: }
5433:
5434: sub linklog {
5435: my ($from,$to)=@_;
5436: $from=&declutter($from);
5437: $to=&declutter($to);
5438: $accesshash{$from.'___'.$to.'___comefrom'}=1;
5439: $accesshash{$to.'___'.$from.'___goto'}=1;
5440: }
5441:
5442: sub statslog {
5443: my ($symb,$part,$users,$av_attempts,$degdiff)=@_;
5444: if ($users<2) { return; }
5445: my %dynstore=&LONCAPA::lonmetadata::dynamic_metadata_storage({
5446: 'course' => $env{'request.course.id'},
5447: 'sections' => '"all"',
5448: 'num_students' => $users,
5449: 'part' => $part,
5450: 'symb' => $symb,
5451: 'mean_tries' => $av_attempts,
5452: 'deg_of_diff' => $degdiff});
5453: foreach my $key (keys(%dynstore)) {
5454: $accesshash{$key}=$dynstore{$key};
5455: }
5456: }
5457:
5458: sub userrolelog {
5459: my ($trole,$username,$domain,$area,$tstart,$tend)=@_;
5460: if ( $trole =~ /^(ca|aa|in|cc|ep|cr|ta|co)/ ) {
5461: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
5462: $userrolehash
5463: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
5464: =$tend.':'.$tstart;
5465: }
5466: if ($env{'request.role'} =~ /dc\./ && $trole =~ /^(au|in|cc|ep|cr|ta|co)/) {
5467: $userrolehash
5468: {$trole.':'.$username.':'.$domain.':'.$env{'user.name'}.':'.$env{'user.domain'}.':'}
5469: =$tend.':'.$tstart;
5470: }
5471: if ($trole =~ /^(dc|ad|li|au|dg|sc|dh|da)/ ) {
5472: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
5473: $domainrolehash
5474: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
5475: = $tend.':'.$tstart;
5476: }
5477: }
5478:
5479: sub courserolelog {
5480: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$selfenroll,
5481: $context,$othdomby,$requester)=@_;
5482: if ($area =~ m-^/($match_domain)/($match_courseid)/?([^/]*)-) {
5483: my $cdom = $1;
5484: my $cnum = $2;
5485: my $sec = $3;
5486: my $namespace = 'rolelog';
5487: my %storehash = (
5488: role => $trole,
5489: start => $tstart,
5490: end => $tend,
5491: selfenroll => $selfenroll,
5492: context => $context,
5493: );
5494: if ($othdomby) {
5495: if ($othdomby eq 'othdombydc') {
5496: $storehash{'approval'} = 'domain';
5497: } elsif ($othdomby eq 'othdombyuser') {
5498: $storehash{'approval'} = 'user';
5499: }
5500: if ($requester ne '') {
5501: $storehash{'requester'} = $requester;
5502: }
5503: }
5504: if ($trole eq 'gr') {
5505: $namespace = 'groupslog';
5506: $storehash{'group'} = $sec;
5507: } else {
5508: $storehash{'section'} = $sec;
5509: my ($curruserdomstr,$newuserdomstr);
5510: if (exists($env{'course.'.$cdom.'_'.$cnum.'.internal.userdomains'})) {
5511: $curruserdomstr = $env{'course.'.$env{'request.course.id'}.'.internal.userdomains'};
5512: } else {
5513: my %courseinfo = &coursedescription($cdom.'/'.$cnum);
5514: $curruserdomstr = $courseinfo{'internal.userdomains'};
5515: }
5516: if ($curruserdomstr ne '') {
5517: my @udoms = split(/,/,$curruserdomstr);
5518: unless (grep(/^\Q$domain\E/,@udoms)) {
5519: push(@udoms,$domain);
5520: $newuserdomstr = join(',',sort(@udoms));
5521: }
5522: } else {
5523: $newuserdomstr = $domain;
5524: }
5525: if ($newuserdomstr ne '') {
5526: my $putresult = &put('environment',{ 'internal.userdomains' => $newuserdomstr },
5527: $cdom,$cnum);
5528: if ($putresult eq 'ok') {
5529: unless (($selfenroll) || ($context eq 'selfenroll')) {
5530: if (($context eq 'createcourse') || ($context eq 'requestcourses') ||
5531: ($context eq 'automated') || ($context eq 'domain')) {
5532: $env{'course.'.$cdom.'_'.$cnum.'.internal.userdomains'} = $newuserdomstr;
5533: } elsif ($env{'request.course.id'} eq $cdom.'_'.$cnum) {
5534: &appenv({'course.'.$cdom.'_'.$cnum.'.internal.userdomains' => $newuserdomstr});
5535: }
5536: }
5537: }
5538: }
5539: }
5540: &write_log('course',$namespace,\%storehash,$delflag,$username,
5541: $domain,$cnum,$cdom);
5542: if (($trole ne 'st') || ($sec ne '')) {
5543: &devalidate_cache_new('getcourseroles',$cdom.'_'.$cnum);
5544: }
5545: }
5546: return;
5547: }
5548:
5549: sub domainrolelog {
5550: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,
5551: $context,$othdomby,$requester)=@_;
5552: if ($area =~ m{^/($match_domain)/$}) {
5553: my $cdom = $1;
5554: my $domconfiguser = &get_domainconfiguser($cdom);
5555: my $namespace = 'rolelog';
5556: my %storehash = (
5557: role => $trole,
5558: start => $tstart,
5559: end => $tend,
5560: context => $context,
5561: );
5562: if ($othdomby) {
5563: if ($othdomby eq 'othdombydc') {
5564: $storehash{'approval'} = 'domain';
5565: } elsif ($othdomby eq 'othdombyuser') {
5566: $storehash{'approval'} = 'user';
5567: }
5568: if ($requester ne '') {
5569: $storehash{'requester'} = $requester;
5570: }
5571: }
5572: &write_log('domain',$namespace,\%storehash,$delflag,$username,
5573: $domain,$domconfiguser,$cdom);
5574: }
5575: return;
5576:
5577: }
5578:
5579: sub coauthorrolelog {
5580: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,
5581: $context,$othdomby,$requester)=@_;
5582: if ($area =~ m{^/($match_domain)/($match_username)$}) {
5583: my $audom = $1;
5584: my $auname = $2;
5585: my $namespace = 'rolelog';
5586: my %storehash = (
5587: role => $trole,
5588: start => $tstart,
5589: end => $tend,
5590: context => $context,
5591: );
5592: if ($othdomby) {
5593: if ($othdomby eq 'othdombydc') {
5594: $storehash{'approval'} = 'domain';
5595: } elsif ($othdomby eq 'othdombyuser') {
5596: $storehash{'approval'} = 'user';
5597: }
5598: if ($requester ne '') {
5599: $storehash{'requester'} = $requester;
5600: }
5601: }
5602: &write_log('author',$namespace,\%storehash,$delflag,$username,
5603: $domain,$auname,$audom);
5604: }
5605: return;
5606: }
5607:
5608: sub get_course_adv_roles {
5609: my ($cid,$codes) = @_;
5610: $cid=$env{'request.course.id'} unless (defined($cid));
5611: my %coursehash=&coursedescription($cid);
5612: my $crstype = &Apache::loncommon::course_type($cid);
5613: my %nothide=();
5614: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
5615: if ($user !~ /:/) {
5616: $nothide{join(':',split(/[\@]/,$user))}=1;
5617: } else {
5618: $nothide{$user}=1;
5619: }
5620: }
5621: my @possdoms = ($coursehash{'domain'});
5622: if ($coursehash{'checkforpriv'}) {
5623: push(@possdoms,split(/,/,$coursehash{'checkforpriv'}));
5624: }
5625: my %returnhash=();
5626: my %dumphash=
5627: &dump('nohist_userroles',$coursehash{'domain'},$coursehash{'num'});
5628: my $now=time;
5629: my %privileged;
5630: foreach my $entry (keys(%dumphash)) {
5631: my ($tend,$tstart)=split(/\:/,$dumphash{$entry});
5632: if (($tstart) && ($tstart<0)) { next; }
5633: if (($tend) && ($tend<$now)) { next; }
5634: if (($tstart) && ($now<$tstart)) { next; }
5635: my ($role,$username,$domain,$section)=split(/\:/,$entry);
5636: if ($username eq '' || $domain eq '') { next; }
5637: if ((&privileged($username,$domain,\@possdoms)) &&
5638: (!$nothide{$username.':'.$domain})) { next; }
5639: if ($role eq 'cr') { next; }
5640: if ($codes) {
5641: if ($section) { $role .= ':'.$section; }
5642: if ($returnhash{$role}) {
5643: $returnhash{$role}.=','.$username.':'.$domain;
5644: } else {
5645: $returnhash{$role}=$username.':'.$domain;
5646: }
5647: } else {
5648: my $key=&plaintext($role,$crstype);
5649: if ($section) { $key.=' ('.&Apache::lonlocal::mt('Section [_1]',$section).')'; }
5650: if ($returnhash{$key}) {
5651: $returnhash{$key}.=','.$username.':'.$domain;
5652: } else {
5653: $returnhash{$key}=$username.':'.$domain;
5654: }
5655: }
5656: }
5657: return %returnhash;
5658: }
5659:
5660: sub get_my_roles {
5661: my ($uname,$udom,$context,$types,$roles,$roledoms,$withsec,$hidepriv)=@_;
5662: unless (defined($uname)) { $uname=$env{'user.name'}; }
5663: unless (defined($udom)) { $udom=$env{'user.domain'}; }
5664: my (%dumphash,%nothide);
5665: if ($context eq 'userroles') {
5666: %dumphash = &dump('roles',$udom,$uname);
5667: } else {
5668: %dumphash = &dump('nohist_userroles',$udom,$uname);
5669: if ($hidepriv) {
5670: my %coursehash=&coursedescription($udom.'_'.$uname);
5671: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
5672: if ($user !~ /:/) {
5673: $nothide{join(':',split(/[\@]/,$user))} = 1;
5674: } else {
5675: $nothide{$user} = 1;
5676: }
5677: }
5678: }
5679: }
5680: my %returnhash=();
5681: my $now=time;
5682: my %privileged;
5683: foreach my $entry (keys(%dumphash)) {
5684: my ($role,$tend,$tstart);
5685: if ($context eq 'userroles') {
5686: next if ($entry =~ /^rolesdef/);
5687: ($role,$tend,$tstart)=split(/_/,$dumphash{$entry});
5688: } else {
5689: ($tend,$tstart)=split(/\:/,$dumphash{$entry});
5690: }
5691: if (($tstart) && ($tstart<0)) { next; }
5692: my $status = 'active';
5693: if (($tend) && ($tend<=$now)) {
5694: $status = 'previous';
5695: }
5696: if (($tstart) && ($now<$tstart)) {
5697: $status = 'future';
5698: }
5699: if (ref($types) eq 'ARRAY') {
5700: if (!grep(/^\Q$status\E$/,@{$types})) {
5701: next;
5702: }
5703: } else {
5704: if ($status ne 'active') {
5705: next;
5706: }
5707: }
5708: my ($rolecode,$username,$domain,$section,$area);
5709: if ($context eq 'userroles') {
5710: ($area,$rolecode) = ($entry =~ /^(.+)_([^_]+)$/);
5711: (undef,$domain,$username,$section) = split(/\//,$area);
5712: } else {
5713: ($role,$username,$domain,$section) = split(/\:/,$entry);
5714: }
5715: if (ref($roledoms) eq 'ARRAY') {
5716: if (!grep(/^\Q$domain\E$/,@{$roledoms})) {
5717: next;
5718: }
5719: }
5720: if (ref($roles) eq 'ARRAY') {
5721: if (!grep(/^\Q$role\E$/,@{$roles})) {
5722: if ($role =~ /^cr\//) {
5723: if (!grep(/^cr$/,@{$roles})) {
5724: next;
5725: }
5726: } elsif ($role =~ /^gr\//) {
5727: if (!grep(/^gr$/,@{$roles})) {
5728: next;
5729: }
5730: } else {
5731: next;
5732: }
5733: }
5734: }
5735: if ($hidepriv) {
5736: my @privroles = ('dc','su');
5737: if ($context eq 'userroles') {
5738: next if (grep(/^\Q$role\E$/,@privroles));
5739: } else {
5740: my $possdoms = [$domain];
5741: if (ref($roledoms) eq 'ARRAY') {
5742: push(@{$possdoms},@{$roledoms});
5743: }
5744: if (&privileged($username,$domain,$possdoms,\@privroles)) {
5745: if (!$nothide{$username.':'.$domain}) {
5746: next;
5747: }
5748: }
5749: }
5750: }
5751: if ($withsec) {
5752: $returnhash{$username.':'.$domain.':'.$role.':'.$section} =
5753: $tstart.':'.$tend;
5754: } else {
5755: $returnhash{$username.':'.$domain.':'.$role}=$tstart.':'.$tend;
5756: }
5757: }
5758: return %returnhash;
5759: }
5760:
5761: sub get_all_adhocroles {
5762: my ($dom) = @_;
5763: my @roles_by_num = ();
5764: my %domdefaults = &get_domain_defaults($dom);
5765: my (%description,%access_in_dom,%access_info);
5766: if (ref($domdefaults{'adhocroles'}) eq 'HASH') {
5767: my $count = 0;
5768: my %domcurrent = %{$domdefaults{'adhocroles'}};
5769: my %ordered;
5770: foreach my $role (sort(keys(%domcurrent))) {
5771: my ($order,$desc,$access_in_dom);
5772: if (ref($domcurrent{$role}) eq 'HASH') {
5773: $order = $domcurrent{$role}{'order'};
5774: $desc = $domcurrent{$role}{'desc'};
5775: $access_in_dom{$role} = $domcurrent{$role}{'access'};
5776: $access_info{$role} = $domcurrent{$role}{$access_in_dom{$role}};
5777: }
5778: if ($order eq '') {
5779: $order = $count;
5780: }
5781: $ordered{$order} = $role;
5782: if ($desc ne '') {
5783: $description{$role} = $desc;
5784: } else {
5785: $description{$role}= $role;
5786: }
5787: $count++;
5788: }
5789: foreach my $item (sort {$a <=> $b } (keys(%ordered))) {
5790: push(@roles_by_num,$ordered{$item});
5791: }
5792: }
5793: return (\@roles_by_num,\%description,\%access_in_dom,\%access_info);
5794: }
5795:
5796: sub get_my_adhocroles {
5797: my ($cid,$checkreg) = @_;
5798: my ($cdom,$cnum,%info,@possroles,$description,$roles_by_num);
5799: if ($env{'request.course.id'} eq $cid) {
5800: $cdom = $env{'course.'.$cid.'.domain'};
5801: $cnum = $env{'course.'.$cid.'.num'};
5802: $info{'internal.coursecode'} = $env{'course.'.$cid.'.internal.coursecode'};
5803: } elsif ($cid =~ /^($match_domain)_($match_courseid)$/) {
5804: $cdom = $1;
5805: $cnum = $2;
5806: %info = &get('environment',['internal.coursecode'],
5807: $cdom,$cnum);
5808: }
5809: if (($info{'internal.coursecode'} ne '') && ($checkreg)) {
5810: my $user = $env{'user.name'}.':'.$env{'user.domain'};
5811: my %rosterhash = &get('classlist',[$user],$cdom,$cnum);
5812: if ($rosterhash{$user} ne '') {
5813: my $type = (split(/:/,$rosterhash{$user}))[5];
5814: return ([],{}) if ($type eq 'auto');
5815: }
5816: }
5817: if (($cdom ne '') && ($cnum ne '')) {
5818: if (($env{"user.role.dh./$cdom/"}) || ($env{"user.role.da./$cdom/"})) {
5819: my $then=$env{'user.login.time'};
5820: my $update=$env{'user.update.time'};
5821: if (!$update) {
5822: $update = $then;
5823: }
5824: my @liveroles;
5825: foreach my $role ('dh','da') {
5826: if ($env{"user.role.$role./$cdom/"}) {
5827: my ($tstart,$tend)=split(/\./,$env{"user.role.$role./$cdom/"});
5828: my $limit = $update;
5829: if ($env{'request.role'} eq "$role./$cdom/") {
5830: $limit = $then;
5831: }
5832: my $activerole = 1;
5833: if ($tstart && $tstart>$limit) { $activerole = 0; }
5834: if ($tend && $tend <$limit) { $activerole = 0; }
5835: if ($activerole) {
5836: push(@liveroles,$role);
5837: }
5838: }
5839: }
5840: if (@liveroles) {
5841: if (&homeserver($cnum,$cdom) ne 'no_host') {
5842: my ($accessref,$accessinfo,%access_in_dom);
5843: ($roles_by_num,$description,$accessref,$accessinfo) = &get_all_adhocroles($cdom);
5844: if (ref($roles_by_num) eq 'ARRAY') {
5845: if (@{$roles_by_num}) {
5846: my %settings;
5847: if ($env{'request.course.id'} eq $cid) {
5848: foreach my $envkey (keys(%env)) {
5849: if ($envkey =~ /^\Qcourse.$cid.\E(internal\.adhoc.+)$/) {
5850: $settings{$1} = $env{$envkey};
5851: }
5852: }
5853: } else {
5854: %settings = &dump('environment',$cdom,$cnum,'internal\.adhoc');
5855: }
5856: my %setincrs;
5857: if ($settings{'internal.adhocaccess'}) {
5858: map { $setincrs{$_} = 1; } split(/,/,$settings{'internal.adhocaccess'});
5859: }
5860: my @statuses;
5861: if ($env{'environment.inststatus'}) {
5862: @statuses = split(/,/,$env{'environment.inststatus'});
5863: }
5864: my $user = $env{'user.name'}.':'.$env{'user.domain'};
5865: if (ref($accessref) eq 'HASH') {
5866: %access_in_dom = %{$accessref};
5867: }
5868: foreach my $role (@{$roles_by_num}) {
5869: my ($curraccess,@okstatus,@personnel);
5870: if ($setincrs{$role}) {
5871: ($curraccess,my $rest) = split(/=/,$settings{'internal.adhoc.'.$role});
5872: if ($curraccess eq 'status') {
5873: @okstatus = split(/\&/,$rest);
5874: } elsif (($curraccess eq 'exc') || ($curraccess eq 'inc')) {
5875: @personnel = split(/\&/,$rest);
5876: }
5877: } else {
5878: $curraccess = $access_in_dom{$role};
5879: if (ref($accessinfo) eq 'HASH') {
5880: if ($curraccess eq 'status') {
5881: if (ref($accessinfo->{$role}) eq 'ARRAY') {
5882: @okstatus = @{$accessinfo->{$role}};
5883: }
5884: } elsif (($curraccess eq 'exc') || ($curraccess eq 'inc')) {
5885: if (ref($accessinfo->{$role}) eq 'ARRAY') {
5886: @personnel = @{$accessinfo->{$role}};
5887: }
5888: }
5889: }
5890: }
5891: if ($curraccess eq 'none') {
5892: next;
5893: } elsif ($curraccess eq 'all') {
5894: push(@possroles,$role);
5895: } elsif ($curraccess eq 'dh') {
5896: if (grep(/^dh$/,@liveroles)) {
5897: push(@possroles,$role);
5898: } else {
5899: next;
5900: }
5901: } elsif ($curraccess eq 'da') {
5902: if (grep(/^da$/,@liveroles)) {
5903: push(@possroles,$role);
5904: } else {
5905: next;
5906: }
5907: } elsif ($curraccess eq 'status') {
5908: if (@okstatus) {
5909: if (!@statuses) {
5910: if (grep(/^default$/,@okstatus)) {
5911: push(@possroles,$role);
5912: }
5913: } else {
5914: foreach my $status (@okstatus) {
5915: if (grep(/^\Q$status\E$/,@statuses)) {
5916: push(@possroles,$role);
5917: last;
5918: }
5919: }
5920: }
5921: }
5922: } elsif (($curraccess eq 'exc') || ($curraccess eq 'inc')) {
5923: if (grep(/^\Q$user\E$/,@personnel)) {
5924: if ($curraccess eq 'exc') {
5925: push(@possroles,$role);
5926: }
5927: } elsif ($curraccess eq 'inc') {
5928: push(@possroles,$role);
5929: }
5930: }
5931: }
5932: }
5933: }
5934: }
5935: }
5936: }
5937: }
5938: unless (ref($description) eq 'HASH') {
5939: if (ref($roles_by_num) eq 'ARRAY') {
5940: my %desc;
5941: map { $desc{$_} = $_; } (@{$roles_by_num});
5942: $description = \%desc;
5943: } else {
5944: $description = {};
5945: }
5946: }
5947: return (\@possroles,$description);
5948: }
5949:
5950: # ----------------------------------------------------- Frontpage Announcements
5951: #
5952: #
5953:
5954: sub postannounce {
5955: my ($server,$text)=@_;
5956: unless (&allowed('psa',&host_domain($server))) { return 'refused'; }
5957: unless ($text=~/\w/) { $text=''; }
5958: return &reply('setannounce:'.&escape($text),$server);
5959: }
5960:
5961: sub getannounce {
5962:
5963: if (open(my $fh,"<",$perlvar{'lonDocRoot'}.'/announcement.txt')) {
5964: my $announcement='';
5965: while (my $line = <$fh>) { $announcement .= $line; }
5966: close($fh);
5967: if ($announcement=~/\w/) {
5968: return
5969: '<table bgcolor="#FF5555" cellpadding="5" cellspacing="3">'.
5970: '<tr><td bgcolor="#FFFFFF"><tt>'.$announcement.'</tt></td></tr></table>';
5971: } else {
5972: return '';
5973: }
5974: } else {
5975: return '';
5976: }
5977: }
5978:
5979: # ---------------------------------------------------------- Course ID routines
5980: # Deal with domain's nohist_courseid.db files
5981: #
5982:
5983: sub courseidput {
5984: my ($domain,$storehash,$coursehome,$caller) = @_;
5985: return unless (ref($storehash) eq 'HASH');
5986: my $outcome;
5987: if ($caller eq 'timeonly') {
5988: my $cids = '';
5989: foreach my $item (keys(%$storehash)) {
5990: $cids.=&escape($item).'&';
5991: }
5992: $cids=~s/\&$//;
5993: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$cids,
5994: $coursehome);
5995: } else {
5996: my $items = '';
5997: foreach my $item (keys(%$storehash)) {
5998: $items.= &escape($item).'='.
5999: &freeze_escape($$storehash{$item}).'&';
6000: }
6001: $items=~s/\&$//;
6002: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$items,
6003: $coursehome);
6004: }
6005: if ($outcome eq 'unknown_cmd') {
6006: my $what;
6007: foreach my $cid (keys(%$storehash)) {
6008: $what .= &escape($cid).'=';
6009: foreach my $item ('description','inst_code','owner','type') {
6010: $what .= &escape($storehash->{$cid}{$item}).':';
6011: }
6012: $what =~ s/\:$/&/;
6013: }
6014: $what =~ s/\&$//;
6015: return &reply('courseidput:'.$domain.':'.$what,$coursehome);
6016: } else {
6017: return $outcome;
6018: }
6019: }
6020:
6021: sub courseiddump {
6022: my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,
6023: $coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok,
6024: $selfenrollonly,$catfilter,$showhidden,$caller,$cloner,$cc_clone,
6025: $cloneonly,$createdbefore,$createdafter,$creationcontext,$domcloner,
6026: $hasuniquecode,$reqcrsdom,$reqinstcode)=@_;
6027: my $as_hash = 1;
6028: my %returnhash;
6029: if (!$domfilter) { $domfilter=''; }
6030: my %libserv = &all_library();
6031: foreach my $tryserver (keys(%libserv)) {
6032: if ( ( $hostidflag == 1
6033: && grep(/^\Q$tryserver\E$/,@{$hostidref}) )
6034: || (!defined($hostidflag)) ) {
6035:
6036: if (($domfilter eq '') ||
6037: (&host_domain($tryserver) eq $domfilter)) {
6038: my $rep;
6039: if (grep { $_ eq $tryserver } current_machine_ids()) {
6040: $rep = LONCAPA::Lond::dump_course_id_handler(
6041: join(":", (&host_domain($tryserver), $sincefilter,
6042: &escape($descfilter), &escape($instcodefilter),
6043: &escape($ownerfilter), &escape($coursefilter),
6044: &escape($typefilter), &escape($regexp_ok),
6045: $as_hash, &escape($selfenrollonly),
6046: &escape($catfilter), $showhidden, $caller,
6047: &escape($cloner), &escape($cc_clone), $cloneonly,
6048: &escape($createdbefore), &escape($createdafter),
6049: &escape($creationcontext),$domcloner,$hasuniquecode,
6050: $reqcrsdom,&escape($reqinstcode))));
6051: } else {
6052: $rep = &reply('courseiddump:'.&host_domain($tryserver).':'.
6053: $sincefilter.':'.&escape($descfilter).':'.
6054: &escape($instcodefilter).':'.&escape($ownerfilter).
6055: ':'.&escape($coursefilter).':'.&escape($typefilter).
6056: ':'.&escape($regexp_ok).':'.$as_hash.':'.
6057: &escape($selfenrollonly).':'.&escape($catfilter).':'.
6058: $showhidden.':'.$caller.':'.&escape($cloner).':'.
6059: &escape($cc_clone).':'.$cloneonly.':'.
6060: &escape($createdbefore).':'.&escape($createdafter).':'.
6061: &escape($creationcontext).':'.$domcloner.':'.$hasuniquecode.
6062: ':'.$reqcrsdom.':'.&escape($reqinstcode),$tryserver);
6063: }
6064:
6065: my @pairs=split(/\&/,$rep);
6066: foreach my $item (@pairs) {
6067: my ($key,$value)=split(/\=/,$item,2);
6068: $key = &unescape($key);
6069: next if ($key =~ /^error: 2 /);
6070: my $result = &thaw_unescape($value);
6071: if (ref($result) eq 'HASH') {
6072: $returnhash{$key}=$result;
6073: } else {
6074: my @responses = split(/:/,$value);
6075: my @items = ('description','inst_code','owner','type');
6076: for (my $i=0; $i<@responses; $i++) {
6077: $returnhash{$key}{$items[$i]} = &unescape($responses[$i]);
6078: }
6079: }
6080: }
6081: }
6082: }
6083: }
6084: return %returnhash;
6085: }
6086:
6087: sub courselastaccess {
6088: my ($cdom,$cnum,$hostidref) = @_;
6089: my %returnhash;
6090: if ($cdom && $cnum) {
6091: my $chome = &homeserver($cnum,$cdom);
6092: if ($chome ne 'no_host') {
6093: my $rep = &reply('courselastaccess:'.$cdom.':'.$cnum,$chome);
6094: &extract_lastaccess(\%returnhash,$rep);
6095: }
6096: } else {
6097: if (!$cdom) { $cdom=''; }
6098: my %libserv = &all_library();
6099: foreach my $tryserver (keys(%libserv)) {
6100: if (ref($hostidref) eq 'ARRAY') {
6101: next unless (grep(/^\Q$tryserver\E$/,@{$hostidref}));
6102: }
6103: if (($cdom eq '') || (&host_domain($tryserver) eq $cdom)) {
6104: my $rep = &reply('courselastaccess:'.&host_domain($tryserver).':',$tryserver);
6105: &extract_lastaccess(\%returnhash,$rep);
6106: }
6107: }
6108: }
6109: return %returnhash;
6110: }
6111:
6112: sub extract_lastaccess {
6113: my ($returnhash,$rep) = @_;
6114: if (ref($returnhash) eq 'HASH') {
6115: unless ($rep eq 'unknown_command' || $rep eq 'no_such_host' ||
6116: $rep eq 'con_lost' || $rep eq 'rejected' || $rep eq 'refused' ||
6117: $rep eq '') {
6118: my @pairs=split(/\&/,$rep);
6119: foreach my $item (@pairs) {
6120: my ($key,$value)=split(/\=/,$item,2);
6121: $key = &unescape($key);
6122: next if ($key =~ /^error: 2 /);
6123: $returnhash->{$key} = &thaw_unescape($value);
6124: }
6125: }
6126: }
6127: return;
6128: }
6129:
6130: # ---------------------------------------------------------- DC e-mail
6131:
6132: sub dcmailput {
6133: my ($domain,$msgid,$message,$server)=@_;
6134: my $status = &critical(
6135: 'dcmailput:'.$domain.':'.&escape($msgid).'='.
6136: &escape($message),$server);
6137: return $status;
6138: }
6139:
6140: sub dcmaildump {
6141: my ($dom,$startdate,$enddate,$senders) = @_;
6142: my %returnhash=();
6143:
6144: if (defined(&domain($dom,'primary'))) {
6145: my $cmd='dcmaildump:'.$dom.':'.&escape($startdate).':'.
6146: &escape($enddate).':';
6147: my @esc_senders=map { &escape($_)} @$senders;
6148: $cmd.=&escape(join('&',@esc_senders));
6149: foreach my $line (split(/\&/,&reply($cmd,&domain($dom,'primary')))) {
6150: my ($key,$value) = split(/\=/,$line,2);
6151: if (($key) && ($value)) {
6152: $returnhash{&unescape($key)} = &unescape($value);
6153: }
6154: }
6155: }
6156: return %returnhash;
6157: }
6158: # ---------------------------------------------------------- Domain roles
6159:
6160: sub get_domain_roles {
6161: my ($dom,$roles,$startdate,$enddate)=@_;
6162: if ((!defined($startdate)) || ($startdate eq '')) {
6163: $startdate = '.';
6164: }
6165: if ((!defined($enddate)) || ($enddate eq '')) {
6166: $enddate = '.';
6167: }
6168: my $rolelist;
6169: if (ref($roles) eq 'ARRAY') {
6170: $rolelist = join('&',@{$roles});
6171: }
6172: my %personnel = ();
6173:
6174: my %servers = &get_servers($dom,'library');
6175: foreach my $tryserver (keys(%servers)) {
6176: %{$personnel{$tryserver}}=();
6177: foreach my $line (split(/\&/,&reply('domrolesdump:'.$dom.':'.
6178: &escape($startdate).':'.
6179: &escape($enddate).':'.
6180: &escape($rolelist), $tryserver))) {
6181: my ($key,$value) = split(/\=/,$line,2);
6182: if (($key) && ($value)) {
6183: $personnel{$tryserver}{&unescape($key)} = &unescape($value);
6184: }
6185: }
6186: }
6187: return %personnel;
6188: }
6189:
6190: sub get_active_domroles {
6191: my ($dom,$roles) = @_;
6192: return () unless (ref($roles) eq 'ARRAY');
6193: my $now = time;
6194: my %dompersonnel = &get_domain_roles($dom,$roles,$now,$now);
6195: my %domroles;
6196: foreach my $server (keys(%dompersonnel)) {
6197: foreach my $user (sort(keys(%{$dompersonnel{$server}}))) {
6198: my ($trole,$uname,$udom,$runame,$rudom,$rsec) = split(/:/,$user);
6199: $domroles{$uname.':'.$udom} = $dompersonnel{$server}{$user};
6200: }
6201: }
6202: return %domroles;
6203: }
6204:
6205: # ----------------------------------------------------------- Interval timing
6206:
6207: {
6208: # Caches needed for speedup of navmaps
6209: # We don't want to cache this for very long at all (5 seconds at most)
6210: #
6211: # The user for whom we cache
6212: my $cachedkey='';
6213: # The cached times for this user
6214: my %cachedtimes=();
6215: # When this was last done
6216: my $cachedtime='';
6217:
6218: sub load_all_first_access {
6219: my ($uname,$udom,$ignorecache)=@_;
6220: if (($cachedkey eq $uname.':'.$udom) &&
6221: (abs($cachedtime-time)<5) && (!$env{'form.markaccess'}) &&
6222: (!$ignorecache)) {
6223: return;
6224: }
6225: $cachedtime=time;
6226: $cachedkey=$uname.':'.$udom;
6227: %cachedtimes=&dump('firstaccesstimes',$udom,$uname);
6228: }
6229:
6230: sub get_first_access {
6231: my ($type,$argsymb,$argmap,$ignorecache)=@_;
6232: my ($symb,$courseid,$udom,$uname)=&whichuser();
6233: if ($argsymb) { $symb=$argsymb; }
6234: my ($map,$id,$res)=&decode_symb($symb);
6235: if ($argmap) { $map = $argmap; }
6236: if ($type eq 'course') {
6237: $res='course';
6238: } elsif ($type eq 'map') {
6239: $res=&symbread($map);
6240: } else {
6241: $res=$symb;
6242: }
6243: &load_all_first_access($uname,$udom,$ignorecache);
6244: return $cachedtimes{"$courseid\0$res"};
6245: }
6246:
6247: sub set_first_access {
6248: my ($type,$interval)=@_;
6249: my ($symb,$courseid,$udom,$uname)=&whichuser();
6250: my ($map,$id,$res)=&decode_symb($symb);
6251: if ($type eq 'course') {
6252: $res='course';
6253: } elsif ($type eq 'map') {
6254: $res=&symbread($map);
6255: } else {
6256: $res=$symb;
6257: }
6258: $cachedkey='';
6259: my $firstaccess=&get_first_access($type,$symb,$map);
6260: if ($firstaccess) {
6261: &logthis("First access time already set ($firstaccess) when attempting ".
6262: "to set new value (type: $type, extent: $res) for $uname:$udom ".
6263: "in $courseid");
6264: return 'already_set';
6265: } else {
6266: my $start = time;
6267: my $putres = &put('firstaccesstimes',{"$courseid\0$res"=>$start},
6268: $udom,$uname);
6269: if ($putres eq 'ok') {
6270: &put('timerinterval',{"$courseid\0$res"=>$interval},
6271: $udom,$uname);
6272: &appenv(
6273: {
6274: 'course.'.$courseid.'.firstaccess.'.$res => $start,
6275: 'course.'.$courseid.'.timerinterval.'.$res => $interval,
6276: }
6277: );
6278: if (($cachedtime) && (abs($start-$cachedtime) < 5)) {
6279: $cachedtimes{"$courseid\0$res"} = $start;
6280: }
6281: } elsif ($putres ne 'refused') {
6282: &logthis("Result: $putres when attempting to set first access time ".
6283: "(type: $type, extent: $res) for $uname:$udom in $courseid");
6284: }
6285: return $putres;
6286: }
6287: return 'already_set';
6288: }
6289: }
6290:
6291: # --------------------------------------------- Set Expire Date for Spreadsheet
6292:
6293: sub expirespread {
6294: my ($uname,$udom,$stype,$usymb)=@_;
6295: my $cid=$env{'request.course.id'};
6296: if ($cid) {
6297: my $now=time;
6298: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
6299: return &reply('put:'.$env{'course.'.$cid.'.domain'}.':'.
6300: $env{'course.'.$cid.'.num'}.
6301: ':nohist_expirationdates:'.
6302: &escape($key).'='.$now,
6303: $env{'course.'.$cid.'.home'})
6304: }
6305: return 'ok';
6306: }
6307:
6308: # ----------------------------------------------------- Devalidate Spreadsheets
6309:
6310: sub devalidate {
6311: my ($symb,$uname,$udom)=@_;
6312: my $cid=$env{'request.course.id'};
6313: if ($cid) {
6314: # delete the stored spreadsheets for
6315: # - the student level sheet of this user in course's homespace
6316: # - the assessment level sheet for this resource
6317: # for this user in user's homespace
6318: # - current conditional state info
6319: my $key=$uname.':'.$udom.':';
6320: my $status=
6321: &del('nohist_calculatedsheets',
6322: [$key.'studentcalc:'],
6323: $env{'course.'.$cid.'.domain'},
6324: $env{'course.'.$cid.'.num'})
6325: .' '.
6326: &del('nohist_calculatedsheets_'.$cid,
6327: [$key.'assesscalc:'.$symb],$udom,$uname);
6328: unless ($status eq 'ok ok') {
6329: &logthis('Could not devalidate spreadsheet '.
6330: $uname.' at '.$udom.' for '.
6331: $symb.': '.$status);
6332: }
6333: &delenv('user.state.'.$cid);
6334: }
6335: }
6336:
6337: sub get_scalar {
6338: my ($string,$end) = @_;
6339: my $value;
6340: if ($$string =~ s/^([^&]*?)($end)/$2/) {
6341: $value = $1;
6342: } elsif ($$string =~ s/^([^&]*?)&//) {
6343: $value = $1;
6344: }
6345: return &unescape($value);
6346: }
6347:
6348: sub array2str {
6349: my (@array) = @_;
6350: my $result=&arrayref2str(\@array);
6351: $result=~s/^__ARRAY_REF__//;
6352: $result=~s/__END_ARRAY_REF__$//;
6353: return $result;
6354: }
6355:
6356: sub arrayref2str {
6357: my ($arrayref) = @_;
6358: my $result='__ARRAY_REF__';
6359: foreach my $elem (@$arrayref) {
6360: if(ref($elem) eq 'ARRAY') {
6361: $result.=&arrayref2str($elem).'&';
6362: } elsif(ref($elem) eq 'HASH') {
6363: $result.=&hashref2str($elem).'&';
6364: } elsif(ref($elem)) {
6365: #print("Got a ref of ".(ref($elem))." skipping.");
6366: } else {
6367: $result.=&escape($elem).'&';
6368: }
6369: }
6370: $result=~s/\&$//;
6371: $result .= '__END_ARRAY_REF__';
6372: return $result;
6373: }
6374:
6375: sub hash2str {
6376: my (%hash) = @_;
6377: my $result=&hashref2str(\%hash);
6378: $result=~s/^__HASH_REF__//;
6379: $result=~s/__END_HASH_REF__$//;
6380: return $result;
6381: }
6382:
6383: sub hashref2str {
6384: my ($hashref)=@_;
6385: my $result='__HASH_REF__';
6386: foreach my $key (sort(keys(%$hashref))) {
6387: if (ref($key) eq 'ARRAY') {
6388: $result.=&arrayref2str($key).'=';
6389: } elsif (ref($key) eq 'HASH') {
6390: $result.=&hashref2str($key).'=';
6391: } elsif (ref($key)) {
6392: $result.='=';
6393: #print("Got a ref of ".(ref($key))." skipping.");
6394: } else {
6395: if (defined($key)) {$result.=&escape($key).'=';} else { last; }
6396: }
6397:
6398: if(ref($hashref->{$key}) eq 'ARRAY') {
6399: $result.=&arrayref2str($hashref->{$key}).'&';
6400: } elsif(ref($hashref->{$key}) eq 'HASH') {
6401: $result.=&hashref2str($hashref->{$key}).'&';
6402: } elsif(ref($hashref->{$key})) {
6403: $result.='&';
6404: #print("Got a ref of ".(ref($hashref->{$key}))." skipping.");
6405: } else {
6406: $result.=&escape($hashref->{$key}).'&';
6407: }
6408: }
6409: $result=~s/\&$//;
6410: $result .= '__END_HASH_REF__';
6411: return $result;
6412: }
6413:
6414: sub str2hash {
6415: my ($string)=@_;
6416: my ($hash)=&str2hashref('__HASH_REF__'.$string.'__END_HASH_REF__');
6417: return %$hash;
6418: }
6419:
6420: sub str2hashref {
6421: my ($string) = @_;
6422:
6423: my %hash;
6424:
6425: if($string !~ /^__HASH_REF__/) {
6426: if (! ($string eq '' || !defined($string))) {
6427: $hash{'error'}='Not hash reference';
6428: }
6429: return (\%hash, $string);
6430: }
6431:
6432: $string =~ s/^__HASH_REF__//;
6433:
6434: while($string !~ /^__END_HASH_REF__/) {
6435: #key
6436: my $key='';
6437: if($string =~ /^__HASH_REF__/) {
6438: ($key, $string)=&str2hashref($string);
6439: if(defined($key->{'error'})) {
6440: $hash{'error'}='Bad data';
6441: return (\%hash, $string);
6442: }
6443: } elsif($string =~ /^__ARRAY_REF__/) {
6444: ($key, $string)=&str2arrayref($string);
6445: if($key->[0] eq 'Array reference error') {
6446: $hash{'error'}='Bad data';
6447: return (\%hash, $string);
6448: }
6449: } else {
6450: $string =~ s/^(.*?)=//;
6451: $key=&unescape($1);
6452: }
6453: $string =~ s/^=//;
6454:
6455: #value
6456: my $value='';
6457: if($string =~ /^__HASH_REF__/) {
6458: ($value, $string)=&str2hashref($string);
6459: if(defined($value->{'error'})) {
6460: $hash{'error'}='Bad data';
6461: return (\%hash, $string);
6462: }
6463: } elsif($string =~ /^__ARRAY_REF__/) {
6464: ($value, $string)=&str2arrayref($string);
6465: if($value->[0] eq 'Array reference error') {
6466: $hash{'error'}='Bad data';
6467: return (\%hash, $string);
6468: }
6469: } else {
6470: $value=&get_scalar(\$string,'__END_HASH_REF__');
6471: }
6472: $string =~ s/^&//;
6473:
6474: $hash{$key}=$value;
6475: }
6476:
6477: $string =~ s/^__END_HASH_REF__//;
6478:
6479: return (\%hash, $string);
6480: }
6481:
6482: sub str2array {
6483: my ($string)=@_;
6484: my ($array)=&str2arrayref('__ARRAY_REF__'.$string.'__END_ARRAY_REF__');
6485: return @$array;
6486: }
6487:
6488: sub str2arrayref {
6489: my ($string) = @_;
6490: my @array;
6491:
6492: if($string !~ /^__ARRAY_REF__/) {
6493: if (! ($string eq '' || !defined($string))) {
6494: $array[0]='Array reference error';
6495: }
6496: return (\@array, $string);
6497: }
6498:
6499: $string =~ s/^__ARRAY_REF__//;
6500:
6501: while($string !~ /^__END_ARRAY_REF__/) {
6502: my $value='';
6503: if($string =~ /^__HASH_REF__/) {
6504: ($value, $string)=&str2hashref($string);
6505: if(defined($value->{'error'})) {
6506: $array[0] ='Array reference error';
6507: return (\@array, $string);
6508: }
6509: } elsif($string =~ /^__ARRAY_REF__/) {
6510: ($value, $string)=&str2arrayref($string);
6511: if($value->[0] eq 'Array reference error') {
6512: $array[0] ='Array reference error';
6513: return (\@array, $string);
6514: }
6515: } else {
6516: $value=&get_scalar(\$string,'__END_ARRAY_REF__');
6517: }
6518: $string =~ s/^&//;
6519:
6520: push(@array, $value);
6521: }
6522:
6523: $string =~ s/^__END_ARRAY_REF__//;
6524:
6525: return (\@array, $string);
6526: }
6527:
6528: # -------------------------------------------------------------------Temp Store
6529:
6530: sub tmpreset {
6531: my ($symb,$namespace,$domain,$stuname) = @_;
6532: if (!$symb) {
6533: $symb=&symbread();
6534: if (!$symb) { $symb= $env{'request.url'}; }
6535: }
6536: $symb=escape($symb);
6537:
6538: if (!$namespace) { $namespace=$env{'request.state'}; }
6539: $namespace=~s/\//\_/g;
6540: $namespace=~s/\W//g;
6541:
6542: if (!$domain) { $domain=$env{'user.domain'}; }
6543: if (!$stuname) { $stuname=$env{'user.name'}; }
6544: if ($domain eq 'public' && $stuname eq 'public') {
6545: $stuname=&get_requestor_ip();
6546: }
6547: my $path=LONCAPA::tempdir();
6548: my %hash;
6549: if (tie(%hash,'GDBM_File',
6550: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
6551: &GDBM_WRCREAT(),0640)) {
6552: foreach my $key (keys(%hash)) {
6553: if ($key=~ /:$symb/) {
6554: delete($hash{$key});
6555: }
6556: }
6557: }
6558: }
6559:
6560: sub tmpstore {
6561: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
6562:
6563: if (!$symb) {
6564: $symb=&symbread();
6565: if (!$symb) { $symb= $env{'request.url'}; }
6566: }
6567: $symb=escape($symb);
6568:
6569: if (!$namespace) {
6570: # I don't think we would ever want to store this for a course.
6571: # it seems this will only be used if we don't have a course.
6572: #$namespace=$env{'request.course.id'};
6573: #if (!$namespace) {
6574: $namespace=$env{'request.state'};
6575: #}
6576: }
6577: $namespace=~s/\//\_/g;
6578: $namespace=~s/\W//g;
6579: if (!$domain) { $domain=$env{'user.domain'}; }
6580: if (!$stuname) { $stuname=$env{'user.name'}; }
6581: if ($domain eq 'public' && $stuname eq 'public') {
6582: $stuname=&get_requestor_ip();
6583: }
6584: my $now=time;
6585: my %hash;
6586: my $path=LONCAPA::tempdir();
6587: if (tie(%hash,'GDBM_File',
6588: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
6589: &GDBM_WRCREAT(),0640)) {
6590: $hash{"version:$symb"}++;
6591: my $version=$hash{"version:$symb"};
6592: my $allkeys='';
6593: foreach my $key (keys(%$storehash)) {
6594: $allkeys.=$key.':';
6595: $hash{"$version:$symb:$key"}=&freeze_escape($$storehash{$key});
6596: }
6597: $hash{"$version:$symb:timestamp"}=$now;
6598: $allkeys.='timestamp';
6599: $hash{"$version:keys:$symb"}=$allkeys;
6600: if (untie(%hash)) {
6601: return 'ok';
6602: } else {
6603: return "error:$!";
6604: }
6605: } else {
6606: return "error:$!";
6607: }
6608: }
6609:
6610: # -----------------------------------------------------------------Temp Restore
6611:
6612: sub tmprestore {
6613: my ($symb,$namespace,$domain,$stuname) = @_;
6614:
6615: if (!$symb) {
6616: $symb=&symbread();
6617: if (!$symb) { $symb= $env{'request.url'}; }
6618: }
6619: $symb=escape($symb);
6620:
6621: if (!$namespace) { $namespace=$env{'request.state'}; }
6622:
6623: if (!$domain) { $domain=$env{'user.domain'}; }
6624: if (!$stuname) { $stuname=$env{'user.name'}; }
6625: if ($domain eq 'public' && $stuname eq 'public') {
6626: $stuname=&get_requestor_ip();
6627: }
6628: my %returnhash;
6629: $namespace=~s/\//\_/g;
6630: $namespace=~s/\W//g;
6631: my %hash;
6632: my $path=LONCAPA::tempdir();
6633: if (tie(%hash,'GDBM_File',
6634: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
6635: &GDBM_READER(),0640)) {
6636: my $version=$hash{"version:$symb"};
6637: $returnhash{'version'}=$version;
6638: my $scope;
6639: for ($scope=1;$scope<=$version;$scope++) {
6640: my $vkeys=$hash{"$scope:keys:$symb"};
6641: my @keys=split(/:/,$vkeys);
6642: my $key;
6643: $returnhash{"$scope:keys"}=$vkeys;
6644: foreach $key (@keys) {
6645: $returnhash{"$scope:$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
6646: $returnhash{"$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
6647: }
6648: }
6649: if (!(untie(%hash))) {
6650: return "error:$!";
6651: }
6652: } else {
6653: return "error:$!";
6654: }
6655: return %returnhash;
6656: }
6657:
6658: # ----------------------------------------------------------------------- Store
6659:
6660: sub store {
6661: my ($storehash,$symb,$namespace,$domain,$stuname,$laststore) = @_;
6662: my $home='';
6663:
6664: if ($stuname) { $home=&homeserver($stuname,$domain); }
6665:
6666: $symb=&symbclean($symb);
6667: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
6668:
6669: if (!$domain) { $domain=$env{'user.domain'}; }
6670: if (!$stuname) { $stuname=$env{'user.name'}; }
6671:
6672: &devalidate($symb,$stuname,$domain);
6673:
6674: $symb=escape($symb);
6675: if (!$namespace) {
6676: unless ($namespace=$env{'request.course.id'}) {
6677: return '';
6678: }
6679: }
6680: if (!$home) { $home=$env{'user.home'}; }
6681:
6682: $$storehash{'ip'}=&get_requestor_ip();
6683: $$storehash{'host'}=$perlvar{'lonHostID'};
6684:
6685: my $namevalue='';
6686: foreach my $key (keys(%$storehash)) {
6687: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
6688: }
6689: $namevalue=~s/\&$//;
6690: &courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue);
6691: return reply("store:$domain:$stuname:$namespace:$symb:$namevalue:$laststore","$home");
6692: }
6693:
6694: # -------------------------------------------------------------- Critical Store
6695:
6696: sub cstore {
6697: my ($storehash,$symb,$namespace,$domain,$stuname,$laststore) = @_;
6698: my $home='';
6699:
6700: if ($stuname) { $home=&homeserver($stuname,$domain); }
6701:
6702: $symb=&symbclean($symb);
6703: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
6704:
6705: if (!$domain) { $domain=$env{'user.domain'}; }
6706: if (!$stuname) { $stuname=$env{'user.name'}; }
6707:
6708: &devalidate($symb,$stuname,$domain);
6709:
6710: $symb=escape($symb);
6711: if (!$namespace) {
6712: unless ($namespace=$env{'request.course.id'}) {
6713: return '';
6714: }
6715: }
6716: if (!$home) { $home=$env{'user.home'}; }
6717:
6718: $$storehash{'ip'}=&get_requestor_ip();
6719: $$storehash{'host'}=$perlvar{'lonHostID'};
6720:
6721: my $namevalue='';
6722: foreach my $key (keys(%$storehash)) {
6723: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
6724: }
6725: $namevalue=~s/\&$//;
6726: &courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue);
6727: return critical
6728: ("store:$domain:$stuname:$namespace:$symb:$namevalue:$laststore","$home");
6729: }
6730:
6731: # --------------------------------------------------------------------- Restore
6732:
6733: sub restore {
6734: my ($symb,$namespace,$domain,$stuname) = @_;
6735: my $home='';
6736:
6737: if ($stuname) { $home=&homeserver($stuname,$domain); }
6738:
6739: if (!$symb) {
6740: return if ($namespace eq 'courserequests');
6741: unless ($symb=escape(&symbread())) { return ''; }
6742: } else {
6743: unless ($namespace eq 'courserequests') {
6744: $symb=&escape(&symbclean($symb));
6745: }
6746: }
6747: if (!$namespace) {
6748: unless ($namespace=$env{'request.course.id'}) {
6749: return '';
6750: }
6751: }
6752: if (!$domain) { $domain=$env{'user.domain'}; }
6753: if (!$stuname) { $stuname=$env{'user.name'}; }
6754: if (!$home) { $home=$env{'user.home'}; }
6755: my $answer=&reply("restore:$domain:$stuname:$namespace:$symb","$home");
6756:
6757: my %returnhash=();
6758: foreach my $line (split(/\&/,$answer)) {
6759: my ($name,$value)=split(/\=/,$line);
6760: $returnhash{&unescape($name)}=&thaw_unescape($value);
6761: }
6762: my $version;
6763: for ($version=1;$version<=$returnhash{'version'};$version++) {
6764: foreach my $item (split(/\:/,$returnhash{$version.':keys'})) {
6765: $returnhash{$item}=$returnhash{$version.':'.$item};
6766: }
6767: }
6768: return %returnhash;
6769: }
6770:
6771: # ---------------------------------------------------------- Course Description
6772: #
6773: #
6774:
6775: sub coursedescription {
6776: my ($courseid,$args)=@_;
6777: $courseid=~s/^\///;
6778: $courseid=~s/\_/\//g;
6779: my ($cdomain,$cnum)=split(/\//,$courseid);
6780: my $chome=&homeserver($cnum,$cdomain);
6781: my $normalid=$cdomain.'_'.$cnum;
6782: # need to always cache even if we get errors otherwise we keep
6783: # trying and trying and trying to get the course description.
6784: my %envhash=();
6785: my %returnhash=();
6786:
6787: my $expiretime=600;
6788: if ($env{'request.course.id'} eq $normalid) {
6789: $expiretime=120;
6790: }
6791:
6792: my $prefix='course.'.$cdomain.'_'.$cnum.'.';
6793: if (!$args->{'freshen_cache'}
6794: && ((time-$env{$prefix.'last_cache'}) < $expiretime) ) {
6795: foreach my $key (keys(%env)) {
6796: next if ($key !~ /^\Q$prefix\E(.*)/);
6797: my ($setting) = $1;
6798: $returnhash{$setting} = $env{$key};
6799: }
6800: return %returnhash;
6801: }
6802:
6803: # get the data again
6804:
6805: if (!$args->{'one_time'}) {
6806: $envhash{'course.'.$normalid.'.last_cache'}=time;
6807: }
6808:
6809: if ($chome ne 'no_host') {
6810: %returnhash=&dump('environment',$cdomain,$cnum);
6811: if (!exists($returnhash{'con_lost'})) {
6812: my $username = $env{'user.name'}; # Defult username
6813: if(defined $args->{'user'}) {
6814: $username = $args->{'user'};
6815: }
6816: $returnhash{'home'}= $chome;
6817: $returnhash{'domain'} = $cdomain;
6818: $returnhash{'num'} = $cnum;
6819: if (!defined($returnhash{'type'})) {
6820: $returnhash{'type'} = 'Course';
6821: }
6822: while (my ($name,$value) = each %returnhash) {
6823: $envhash{'course.'.$normalid.'.'.$name}=$value;
6824: }
6825: $returnhash{'url'}=&clutter($returnhash{'url'});
6826: $returnhash{'fn'}=LONCAPA::tempdir() .
6827: $username.'_'.$cdomain.'_'.$cnum;
6828: $envhash{'course.'.$normalid.'.home'}=$chome;
6829: $envhash{'course.'.$normalid.'.domain'}=$cdomain;
6830: $envhash{'course.'.$normalid.'.num'}=$cnum;
6831: }
6832: }
6833: if (!$args->{'one_time'}) {
6834: &appenv(\%envhash);
6835: }
6836: return %returnhash;
6837: }
6838:
6839: sub update_released_required {
6840: my ($needsrelease,$cdom,$cnum,$chome,$cid) = @_;
6841: if ($cdom eq '' || $cnum eq '' || $chome eq '' || $cid eq '') {
6842: $cid = $env{'request.course.id'};
6843: $cdom = $env{'course.'.$cid.'.domain'};
6844: $cnum = $env{'course.'.$cid.'.num'};
6845: $chome = $env{'course.'.$cid.'.home'};
6846: }
6847: if ($needsrelease) {
6848: my %curr_reqd_hash = &userenvironment($cdom,$cnum,'internal.releaserequired');
6849: my $needsupdate;
6850: if ($curr_reqd_hash{'internal.releaserequired'} eq '') {
6851: $needsupdate = 1;
6852: } else {
6853: my ($currmajor,$currminor) = split(/\./,$curr_reqd_hash{'internal.releaserequired'});
6854: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
6855: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
6856: $needsupdate = 1;
6857: }
6858: }
6859: if ($needsupdate) {
6860: my %needshash = (
6861: 'internal.releaserequired' => $needsrelease,
6862: );
6863: my $putresult = &put('environment',\%needshash,$cdom,$cnum);
6864: if ($putresult eq 'ok') {
6865: &appenv({'course.'.$cid.'.internal.releaserequired' => $needsrelease});
6866: my %crsinfo = &courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.');
6867: if (ref($crsinfo{$cid}) eq 'HASH') {
6868: $crsinfo{$cid}{'releaserequired'} = $needsrelease;
6869: &courseidput($cdom,\%crsinfo,$chome,'notime');
6870: }
6871: }
6872: }
6873: }
6874: return;
6875: }
6876:
6877: # -------------------------------------------------See if a user is privileged
6878:
6879: sub privileged {
6880: my ($username,$domain,$possdomains,$possroles)=@_;
6881: my $now = time;
6882: my $roles;
6883: if (ref($possroles) eq 'ARRAY') {
6884: $roles = $possroles;
6885: } else {
6886: $roles = ['dc','su'];
6887: }
6888: if (ref($possdomains) eq 'ARRAY') {
6889: my %privileged = &privileged_by_domain($possdomains,$roles);
6890: foreach my $dom (@{$possdomains}) {
6891: if (($username =~ /^$match_username$/) && ($domain =~ /^$match_domain$/) &&
6892: (ref($privileged{$dom}) eq 'HASH')) {
6893: foreach my $role (@{$roles}) {
6894: if (ref($privileged{$dom}{$role}) eq 'HASH') {
6895: if (exists($privileged{$dom}{$role}{$username.':'.$domain})) {
6896: my ($end,$start) = split(/:/,$privileged{$dom}{$role}{$username.':'.$domain});
6897: return 1 unless (($end && $end < $now) ||
6898: ($start && $start > $now));
6899: }
6900: }
6901: }
6902: }
6903: }
6904: } else {
6905: my %rolesdump = &dump("roles", $domain, $username) or return 0;
6906: my $now = time;
6907:
6908: for my $role (@rolesdump{grep { ! /^rolesdef_/ } keys(%rolesdump)}) {
6909: my ($trole, $tend, $tstart) = split(/_/, $role);
6910: if (grep(/^\Q$trole\E$/,@{$roles})) {
6911: return 1 unless ($tend && $tend < $now)
6912: or ($tstart && $tstart > $now);
6913: }
6914: }
6915: }
6916: return 0;
6917: }
6918:
6919: sub privileged_by_domain {
6920: my ($domains,$roles) = @_;
6921: my %privileged = ();
6922: my $cachetime = 60*60*24;
6923: my $now = time;
6924: unless ((ref($domains) eq 'ARRAY') && (ref($roles) eq 'ARRAY')) {
6925: return %privileged;
6926: }
6927: foreach my $dom (@{$domains}) {
6928: next if (ref($privileged{$dom}) eq 'HASH');
6929: my $needroles;
6930: foreach my $role (@{$roles}) {
6931: my ($result,$cached)=&is_cached_new('priv_'.$role,$dom);
6932: if (defined($cached)) {
6933: if (ref($result) eq 'HASH') {
6934: $privileged{$dom}{$role} = $result;
6935: }
6936: } else {
6937: $needroles = 1;
6938: }
6939: }
6940: if ($needroles) {
6941: my %dompersonnel = &get_domain_roles($dom,$roles);
6942: $privileged{$dom} = {};
6943: foreach my $server (keys(%dompersonnel)) {
6944: if (ref($dompersonnel{$server}) eq 'HASH') {
6945: foreach my $item (keys(%{$dompersonnel{$server}})) {
6946: my ($trole,$uname,$udom,$rest) = split(/:/,$item,4);
6947: my ($end,$start) = split(/:/,$dompersonnel{$server}{$item});
6948: next if ($end && $end < $now);
6949: $privileged{$dom}{$trole}{$uname.':'.$udom} =
6950: $dompersonnel{$server}{$item};
6951: }
6952: }
6953: }
6954: if (ref($privileged{$dom}) eq 'HASH') {
6955: foreach my $role (@{$roles}) {
6956: if (ref($privileged{$dom}{$role}) eq 'HASH') {
6957: &do_cache_new('priv_'.$role,$dom,$privileged{$dom}{$role},$cachetime);
6958: } else {
6959: my %hash = ();
6960: &do_cache_new('priv_'.$role,$dom,\%hash,$cachetime);
6961: }
6962: }
6963: }
6964: }
6965: }
6966: return %privileged;
6967: }
6968:
6969: # -------------------------------------------------------- Get user privileges
6970:
6971: sub rolesinit {
6972: my ($domain, $username) = @_;
6973: my %userroles = ('user.login.time' => time);
6974: my %rolesdump = &dump("roles", $domain, $username) or return \%userroles;
6975:
6976: # firstaccess and timerinterval are related to timed maps/resources.
6977: # also, blocking can be triggered by an activating timer
6978: # it's saved in the user's %env.
6979: my %firstaccess = &dump('firstaccesstimes', $domain, $username);
6980: my %timerinterval = &dump('timerinterval', $domain, $username);
6981: my (%coursetimerstarts, %firstaccchk, %firstaccenv, %coursetimerintervals,
6982: %timerintchk, %timerintenv, %coauthorenv);
6983:
6984: foreach my $key (keys(%firstaccess)) {
6985: my ($cid, $rest) = split(/\0/, $key);
6986: $coursetimerstarts{$cid}{$rest} = $firstaccess{$key};
6987: }
6988:
6989: foreach my $key (keys(%timerinterval)) {
6990: my ($cid,$rest) = split(/\0/,$key);
6991: $coursetimerintervals{$cid}{$rest} = $timerinterval{$key};
6992: }
6993:
6994: my %allroles=();
6995: my %allgroups=();
6996: my %gotcoauconfig=();
6997:
6998: for my $area (grep { ! /^rolesdef_/ } keys(%rolesdump)) {
6999: my $role = $rolesdump{$area};
7000: $area =~ s/\_\w\w$//;
7001:
7002: my ($trole, $tend, $tstart, $group_privs);
7003:
7004: if ($role =~ /^cr/) {
7005: # Custom role, defined by a user
7006: # e.g., user.role.cr/msu/smith/mynewrole
7007: if ($role =~ m|^(cr/$match_domain/$match_username/[a-zA-Z0-9]+)_(.*)$|) {
7008: $trole = $1;
7009: ($tend, $tstart) = split('_', $2);
7010: } else {
7011: $trole = $role;
7012: }
7013: } elsif ($role =~ m|^gr/|) {
7014: # Role of member in a group, defined within a course/community
7015: # e.g., user.role.gr/msu/04935610a19ee4a5fmsul1/leopards
7016: ($trole, $tend, $tstart) = split(/_/, $role);
7017: next if $tstart eq '-1';
7018: ($trole, $group_privs) = split(/\//, $trole);
7019: $group_privs = &unescape($group_privs);
7020: } else {
7021: # Just a normal role, defined in roles.tab
7022: ($trole, $tend, $tstart) = split(/_/,$role);
7023: }
7024:
7025: my %new_role = &set_arearole($trole,$area,$tstart,$tend,$domain,
7026: $username);
7027: @userroles{keys(%new_role)} = @new_role{keys(%new_role)};
7028:
7029: # role expired or not available yet?
7030: $trole = '' if ($tend != 0 && $tend < $userroles{'user.login.time'}) or
7031: ($tstart != 0 && $tstart > $userroles{'user.login.time'});
7032:
7033: next if $area eq '' or $trole eq '';
7034:
7035: my $spec = "$trole.$area";
7036: my ($tdummy, $tdomain, $trest) = split(/\//, $area);
7037:
7038: if ($trole =~ /^cr\//) {
7039: # Custom role, defined by a user
7040: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
7041: } elsif ($trole eq 'gr') {
7042: # Role of a member in a group, defined within a course/community
7043: &group_roleprivs(\%allgroups,$area,$group_privs,$tend,$tstart);
7044: next;
7045: } else {
7046: # Normal role, defined in roles.tab
7047: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
7048: if (($trole eq 'ca') || ($trole eq 'aa')) {
7049: (undef,my ($audom,$auname)) = split(/\//,$area);
7050: unless ($gotcoauconfig{$area}) {
7051: my @ca_settings = ('authoreditors','coauthorlist','coauthoroptin');
7052: my %info = &userenvironment($audom,$auname,@ca_settings);
7053: $gotcoauconfig{$area} = 1;
7054: foreach my $item (@ca_settings) {
7055: if (exists($info{$item})) {
7056: $coauthorenv{"environment.internal.$item.$area"} = $info{$item};
7057: }
7058: }
7059: }
7060: }
7061: }
7062:
7063: my $cid = $tdomain.'_'.$trest;
7064: unless ($firstaccchk{$cid}) {
7065: if (ref($coursetimerstarts{$cid}) eq 'HASH') {
7066: foreach my $item (keys(%{$coursetimerstarts{$cid}})) {
7067: $firstaccenv{'course.'.$cid.'.firstaccess.'.$item} =
7068: $coursetimerstarts{$cid}{$item};
7069: }
7070: }
7071: $firstaccchk{$cid} = 1;
7072: }
7073: unless ($timerintchk{$cid}) {
7074: if (ref($coursetimerintervals{$cid}) eq 'HASH') {
7075: foreach my $item (keys(%{$coursetimerintervals{$cid}})) {
7076: $timerintenv{'course.'.$cid.'.timerinterval.'.$item} =
7077: $coursetimerintervals{$cid}{$item};
7078: }
7079: }
7080: $timerintchk{$cid} = 1;
7081: }
7082: }
7083:
7084: @userroles{'user.author','user.adv','user.rar'} = &set_userprivs(\%userroles,
7085: \%allroles, \%allgroups);
7086: $env{'user.adv'} = $userroles{'user.adv'};
7087: $env{'user.rar'} = $userroles{'user.rar'};
7088:
7089: return (\%userroles,\%firstaccenv,\%timerintenv,\%coauthorenv);
7090: }
7091:
7092: sub set_arearole {
7093: my ($trole,$area,$tstart,$tend,$domain,$username,$nolog) = @_;
7094: unless ($nolog) {
7095: # log the associated role with the area
7096: &userrolelog($trole,$username,$domain,$area,$tstart,$tend);
7097: }
7098: return ('user.role.'.$trole.'.'.$area => $tstart.'.'.$tend);
7099: }
7100:
7101: sub custom_roleprivs {
7102: my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;
7103: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
7104: my $homsvr = &homeserver($rauthor,$rdomain);
7105: if (&hostname($homsvr) ne '') {
7106: my ($rdummy,$roledef)=
7107: &get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);
7108: if (($rdummy ne 'con_lost') && ($roledef ne '')) {
7109: my ($syspriv,$dompriv,$coursepriv)=split(/\_/,$roledef);
7110: if (defined($syspriv)) {
7111: if ($trest =~ /^$match_community$/) {
7112: $syspriv =~ s/bre\&S//;
7113: }
7114: $$allroles{'cm./'}.=':'.$syspriv;
7115: $$allroles{$spec.'./'}.=':'.$syspriv;
7116: }
7117: if ($tdomain ne '') {
7118: if (defined($dompriv)) {
7119: $$allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv;
7120: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;
7121: }
7122: if (($trest ne '') && (defined($coursepriv))) {
7123: if ($trole =~ m{^cr/$tdomain/$tdomain\Q-domainconfig\E/([^/]+)$}) {
7124: my $rolename = $1;
7125: $coursepriv = &course_adhocrole_privs($rolename,$tdomain,$trest,$coursepriv);
7126: }
7127: $$allroles{'cm.'.$area}.=':'.$coursepriv;
7128: $$allroles{$spec.'.'.$area}.=':'.$coursepriv;
7129: }
7130: }
7131: }
7132: }
7133: }
7134:
7135: sub course_adhocrole_privs {
7136: my ($rolename,$cdom,$cnum,$coursepriv) = @_;
7137: my %overrides = &get('environment',["internal.adhocpriv.$rolename"],$cdom,$cnum);
7138: if ($overrides{"internal.adhocpriv.$rolename"}) {
7139: my (%currprivs,%storeprivs);
7140: foreach my $item (split(/:/,$coursepriv)) {
7141: my ($priv,$restrict) = split(/\&/,$item);
7142: $currprivs{$priv} = $restrict;
7143: }
7144: my (%possadd,%possremove,%full);
7145: foreach my $item (split(/\:/,$Apache::lonnet::pr{'cr:c'})) {
7146: my ($priv,$restrict)=split(/\&/,$item);
7147: $full{$priv} = $restrict;
7148: }
7149: foreach my $item (split(/,/,$overrides{"internal.adhocpriv.$rolename"})) {
7150: next if ($item eq '');
7151: my ($rule,$rest) = split(/=/,$item);
7152: next unless (($rule eq 'off') || ($rule eq 'on'));
7153: foreach my $priv (split(/:/,$rest)) {
7154: if ($priv ne '') {
7155: if ($rule eq 'off') {
7156: $possremove{$priv} = 1;
7157: } else {
7158: $possadd{$priv} = 1;
7159: }
7160: }
7161: }
7162: }
7163: foreach my $priv (sort(keys(%full))) {
7164: if (exists($currprivs{$priv})) {
7165: unless (exists($possremove{$priv})) {
7166: $storeprivs{$priv} = $currprivs{$priv};
7167: }
7168: } elsif (exists($possadd{$priv})) {
7169: $storeprivs{$priv} = $full{$priv};
7170: }
7171: }
7172: $coursepriv = ':'.join(':',map { $_.'&'.$storeprivs{$_}; } sort(keys(%storeprivs)));
7173: }
7174: return $coursepriv;
7175: }
7176:
7177: sub group_roleprivs {
7178: my ($allgroups,$area,$group_privs,$tend,$tstart) = @_;
7179: my $access = 1;
7180: my $now = time;
7181: if (($tend!=0) && ($tend<$now)) { $access = 0; }
7182: if (($tstart!=0) && ($tstart>$now)) { $access=0; }
7183: if ($access) {
7184: my ($course,$group) = ($area =~ m|(/$match_domain/$match_courseid)/([^/]+)$|);
7185: $$allgroups{$course}{$group} .=':'.$group_privs;
7186: }
7187: }
7188:
7189: sub standard_roleprivs {
7190: my ($allroles,$trole,$tdomain,$spec,$trest,$area) = @_;
7191: if (defined($pr{$trole.':s'})) {
7192: $$allroles{'cm./'}.=':'.$pr{$trole.':s'};
7193: $$allroles{$spec.'./'}.=':'.$pr{$trole.':s'};
7194: }
7195: if ($tdomain ne '') {
7196: if (defined($pr{$trole.':d'})) {
7197: $$allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
7198: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
7199: }
7200: if (($trest ne '') && (defined($pr{$trole.':c'}))) {
7201: $$allroles{'cm.'.$area}.=':'.$pr{$trole.':c'};
7202: $$allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'};
7203: }
7204: }
7205: }
7206:
7207: sub set_userprivs {
7208: my ($userroles,$allroles,$allgroups,$groups_roles) = @_;
7209: my $author=0;
7210: my $adv=0;
7211: my $rar=0;
7212: my %grouproles = ();
7213: if (keys(%{$allgroups}) > 0) {
7214: my @groupkeys;
7215: foreach my $role (keys(%{$allroles})) {
7216: push(@groupkeys,$role);
7217: }
7218: if (ref($groups_roles) eq 'HASH') {
7219: foreach my $key (keys(%{$groups_roles})) {
7220: unless (grep(/^\Q$key\E$/,@groupkeys)) {
7221: push(@groupkeys,$key);
7222: }
7223: }
7224: }
7225: if (@groupkeys > 0) {
7226: foreach my $role (@groupkeys) {
7227: my ($trole,$area,$sec,$extendedarea);
7228: if ($role =~ m-^(\w+|cr/$match_domain/$match_username/\w+)\.(/$match_domain/$match_courseid)(/?\w*)\.-) {
7229: $trole = $1;
7230: $area = $2;
7231: $sec = $3;
7232: $extendedarea = $area.$sec;
7233: if (exists($$allgroups{$area})) {
7234: foreach my $group (keys(%{$$allgroups{$area}})) {
7235: my $spec = $trole.'.'.$extendedarea;
7236: $grouproles{$spec.'.'.$area.'/'.$group} =
7237: $$allgroups{$area}{$group};
7238: }
7239: }
7240: }
7241: }
7242: }
7243: }
7244: foreach my $group (keys(%grouproles)) {
7245: $$allroles{$group} = $grouproles{$group};
7246: }
7247: foreach my $role (keys(%{$allroles})) {
7248: my %thesepriv;
7249: if (($role=~/^au/) || ($role=~/^ca/) || ($role=~/^aa/)) { $author=1; }
7250: foreach my $item (split(/:/,$$allroles{$role})) {
7251: if ($item ne '') {
7252: my ($privilege,$restrictions)=split(/&/,$item);
7253: if ($restrictions eq '') {
7254: $thesepriv{$privilege}='F';
7255: } elsif ($thesepriv{$privilege} ne 'F') {
7256: $thesepriv{$privilege}.=$restrictions;
7257: }
7258: if ($thesepriv{'adv'} eq 'F') { $adv=1; }
7259: if ($thesepriv{'rar'} eq 'F') { $rar=1; }
7260: }
7261: }
7262: my $thesestr='';
7263: foreach my $priv (sort(keys(%thesepriv))) {
7264: $thesestr.=':'.$priv.'&'.$thesepriv{$priv};
7265: }
7266: $userroles->{'user.priv.'.$role} = $thesestr;
7267: }
7268: return ($author,$adv,$rar);
7269: }
7270:
7271: sub role_status {
7272: my ($rolekey,$update,$refresh,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;
7273: if (exists($env{$rolekey}) && $env{$rolekey} ne '') {
7274: my ($one,$two) = split(m{\./},$rolekey,2);
7275: (undef,undef,$$role) = split(/\./,$one,3);
7276: unless (!defined($$role) || $$role eq '') {
7277: $$where = '/'.$two;
7278: $$trolecode=$$role.'.'.$$where;
7279: ($$tstart,$$tend)=split(/\./,$env{$rolekey});
7280: $$tstatus='is';
7281: if ($$tstart && $$tstart>$update) {
7282: $$tstatus='future';
7283: if ($$tstart<$now) {
7284: if ($$tstart && $$tstart>$refresh) {
7285: if (($$where ne '') && ($$role ne '')) {
7286: my (%allroles,%allgroups,$group_privs,
7287: %groups_roles,@rolecodes);
7288: my %userroles = (
7289: 'user.role.'.$$role.'.'.$$where => $$tstart.'.'.$$tend
7290: );
7291: @rolecodes = ('cm');
7292: my $spec=$$role.'.'.$$where;
7293: my ($tdummy,$tdomain,$trest)=split(/\//,$$where);
7294: if ($$role =~ /^cr\//) {
7295: &custom_roleprivs(\%allroles,$$role,$tdomain,$trest,$spec,$$where);
7296: push(@rolecodes,'cr');
7297: } elsif ($$role eq 'gr') {
7298: push(@rolecodes,$$role);
7299: my %rolehash = &get('roles',[$$where.'_'.$$role],$env{'user.domain'},
7300: $env{'user.name'});
7301: my ($trole) = split('_',$rolehash{$$where.'_'.$$role},2);
7302: (undef,my $group_privs) = split(/\//,$trole);
7303: $group_privs = &unescape($group_privs);
7304: &group_roleprivs(\%allgroups,$$where,$group_privs,$$tend,$$tstart);
7305: my %course_roles = &get_my_roles($env{'user.name'},$env{'user.domain'},'userroles',['active'],['cc','co','in','ta','ep','ad','st','cr'],[$tdomain],1);
7306: &get_groups_roles($tdomain,$trest,
7307: \%course_roles,\@rolecodes,
7308: \%groups_roles);
7309: } else {
7310: push(@rolecodes,$$role);
7311: &standard_roleprivs(\%allroles,$$role,$tdomain,$spec,$trest,$$where);
7312: }
7313: my ($author,$adv,$rar)= &set_userprivs(\%userroles,\%allroles,\%allgroups,
7314: \%groups_roles);
7315: &appenv(\%userroles,\@rolecodes);
7316: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$spec);
7317: }
7318: }
7319: $$tstatus = 'is';
7320: }
7321: }
7322: if ($$tend) {
7323: if ($$tend<$update) {
7324: $$tstatus='expired';
7325: } elsif ($$tend<$now) {
7326: $$tstatus='will_not';
7327: }
7328: }
7329: }
7330: }
7331: }
7332:
7333: sub get_groups_roles {
7334: my ($cdom,$rest,$cdom_courseroles,$rolecodes,$groups_roles) = @_;
7335: return unless((ref($cdom_courseroles) eq 'HASH') &&
7336: (ref($rolecodes) eq 'ARRAY') &&
7337: (ref($groups_roles) eq 'HASH'));
7338: if (keys(%{$cdom_courseroles}) > 0) {
7339: my ($cnum) = ($rest =~ /^($match_courseid)/);
7340: if ($cdom ne '' && $cnum ne '') {
7341: foreach my $key (keys(%{$cdom_courseroles})) {
7342: if ($key =~ /^\Q$cnum\E:\Q$cdom\E:([^:]+):?([^:]*)/) {
7343: my $crsrole = $1;
7344: my $crssec = $2;
7345: if ($crsrole =~ /^cr/) {
7346: unless (grep(/^cr$/,@{$rolecodes})) {
7347: push(@{$rolecodes},'cr');
7348: }
7349: } else {
7350: unless(grep(/^\Q$crsrole\E$/,@{$rolecodes})) {
7351: push(@{$rolecodes},$crsrole);
7352: }
7353: }
7354: my $rolekey = "$crsrole./$cdom/$cnum";
7355: if ($crssec ne '') {
7356: $rolekey .= "/$crssec";
7357: }
7358: $rolekey .= './';
7359: $groups_roles->{$rolekey} = $rolecodes;
7360: }
7361: }
7362: }
7363: }
7364: return;
7365: }
7366:
7367: sub delete_env_groupprivs {
7368: my ($where,$courseroles,$possroles) = @_;
7369: return unless((ref($courseroles) eq 'HASH') && (ref($possroles) eq 'ARRAY'));
7370: my ($dummy,$udom,$uname,$group) = split(/\//,$where);
7371: unless (ref($courseroles->{$udom}) eq 'HASH') {
7372: %{$courseroles->{$udom}} =
7373: &get_my_roles('','','userroles',['active'],
7374: $possroles,[$udom],1);
7375: }
7376: if (ref($courseroles->{$udom}) eq 'HASH') {
7377: foreach my $item (keys(%{$courseroles->{$udom}})) {
7378: my ($cnum,$cdom,$crsrole,$crssec) = split(/:/,$item);
7379: my $area = '/'.$cdom.'/'.$cnum;
7380: my $privkey = "user.priv.$crsrole.$area";
7381: if ($crssec ne '') {
7382: $privkey .= '/'.$crssec;
7383: }
7384: $privkey .= ".$area/$group";
7385: &Apache::lonnet::delenv($privkey,undef,[$crsrole]);
7386: }
7387: }
7388: return;
7389: }
7390:
7391: sub check_adhoc_privs {
7392: my ($cdom,$cnum,$update,$refresh,$now,$checkrole,$caller,$sec) = @_;
7393: my $cckey = 'user.role.'.$checkrole.'./'.$cdom.'/'.$cnum;
7394: if ($sec) {
7395: $cckey .= '/'.$sec;
7396: }
7397: my $setprivs;
7398: if ($env{$cckey}) {
7399: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend);
7400: &role_status($cckey,$update,$refresh,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
7401: unless (($tstatus eq 'is') || ($tstatus eq 'will_not')) {
7402: &set_adhoc_privileges($cdom,$cnum,$checkrole,$caller,$sec);
7403: $setprivs = 1;
7404: }
7405: } else {
7406: &set_adhoc_privileges($cdom,$cnum,$checkrole,$caller,$sec);
7407: $setprivs = 1;
7408: }
7409: return $setprivs;
7410: }
7411:
7412: sub set_adhoc_privileges {
7413: # role can be cc, ca, or cr/<dom>/<dom>-domainconfig/role
7414: my ($dcdom,$pickedcourse,$role,$caller,$sec) = @_;
7415: my $area = '/'.$dcdom.'/'.$pickedcourse;
7416: if ($sec ne '') {
7417: $area .= '/'.$sec;
7418: }
7419: my $spec = $role.'.'.$area;
7420: my %userroles = &set_arearole($role,$area,'','',$env{'user.domain'},
7421: $env{'user.name'},1);
7422: my %rolehash = ();
7423: if ($role =~ m{^\Qcr/$dcdom/$dcdom\E\-domainconfig/(\w+)$}) {
7424: my $rolename = $1;
7425: &custom_roleprivs(\%rolehash,$role,$dcdom,$pickedcourse,$spec,$area);
7426: my %domdef = &get_domain_defaults($dcdom);
7427: if (ref($domdef{'adhocroles'}) eq 'HASH') {
7428: if (ref($domdef{'adhocroles'}{$rolename}) eq 'HASH') {
7429: &appenv({'request.role.desc' => $domdef{'adhocroles'}{$rolename}{'desc'},});
7430: }
7431: }
7432: } else {
7433: &standard_roleprivs(\%rolehash,$role,$dcdom,$spec,$pickedcourse,$area);
7434: }
7435: my ($author,$adv,$rar)= &set_userprivs(\%userroles,\%rolehash);
7436: &appenv(\%userroles,[$role,'cm']);
7437: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$spec);
7438: unless (($caller eq 'constructaccess' && $env{'request.course.id'}) ||
7439: ($caller eq 'tiny')) {
7440: &appenv( {'request.role' => $spec,
7441: 'request.role.domain' => $dcdom,
7442: 'request.course.sec' => $sec,
7443: }
7444: );
7445: my $tadv=0;
7446: if (&allowed('adv') eq 'F') { $tadv=1; }
7447: &appenv({'request.role.adv' => $tadv});
7448: }
7449: }
7450:
7451: # --------------------------------------------------------------- get interface
7452:
7453: sub get {
7454: my ($namespace,$storearr,$udomain,$uname)=@_;
7455: my $items='';
7456: foreach my $item (@$storearr) {
7457: $items.=&escape($item).'&';
7458: }
7459: $items=~s/\&$//;
7460: if (!$udomain) { $udomain=$env{'user.domain'}; }
7461: if (!$uname) { $uname=$env{'user.name'}; }
7462: my $uhome=&homeserver($uname,$udomain);
7463:
7464: my $rep=&reply("get:$udomain:$uname:$namespace:$items",$uhome);
7465: my @pairs=split(/\&/,$rep);
7466: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
7467: return @pairs;
7468: }
7469: my %returnhash=();
7470: my $i=0;
7471: foreach my $item (@$storearr) {
7472: $returnhash{$item}=&thaw_unescape($pairs[$i]);
7473: $i++;
7474: }
7475: return %returnhash;
7476: }
7477:
7478: # --------------------------------------------------------------- del interface
7479:
7480: sub del {
7481: my ($namespace,$storearr,$udomain,$uname)=@_;
7482: my $items='';
7483: foreach my $item (@$storearr) {
7484: $items.=&escape($item).'&';
7485: }
7486:
7487: $items=~s/\&$//;
7488: if (!$udomain) { $udomain=$env{'user.domain'}; }
7489: if (!$uname) { $uname=$env{'user.name'}; }
7490: my $uhome=&homeserver($uname,$udomain);
7491: return &reply("del:$udomain:$uname:$namespace:$items",$uhome);
7492: }
7493:
7494: # -------------------------------------------------------------- dump interface
7495:
7496: sub unserialize {
7497: my ($rep, $escapedkeys) = @_;
7498:
7499: return {} if $rep =~ /^error/;
7500:
7501: my %returnhash=();
7502: foreach my $item (split(/\&/,$rep)) {
7503: my ($key, $value) = split(/=/, $item, 2);
7504: $key = unescape($key) unless $escapedkeys;
7505: next if $key =~ /^error: 2 /;
7506: $returnhash{$key} = &thaw_unescape($value);
7507: }
7508: #return %returnhash;
7509: return \%returnhash;
7510: }
7511:
7512: # see Lond::dump_with_regexp
7513: # if $escapedkeys hash keys won't get unescaped.
7514: sub dump {
7515: my ($namespace,$udomain,$uname,$regexp,$range,$escapedkeys,$encrypt)=@_;
7516: if (!$udomain) { $udomain=$env{'user.domain'}; }
7517: if (!$uname) { $uname=$env{'user.name'}; }
7518: my $uhome=&homeserver($uname,$udomain);
7519:
7520: if ($regexp) {
7521: $regexp=&escape($regexp);
7522: } else {
7523: $regexp='.';
7524: }
7525: if (grep { $_ eq $uhome } current_machine_ids()) {
7526: # user is hosted on this machine
7527: my $reply = LONCAPA::Lond::dump_with_regexp(join(":", ($udomain,
7528: $uname, $namespace, $regexp, $range)), $perlvar{'lonVersion'});
7529: return %{unserialize($reply, $escapedkeys)};
7530: }
7531: my $rep;
7532: if ($encrypt) {
7533: $rep=&reply("encrypt:edump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
7534: } else {
7535: $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
7536: }
7537: my @pairs=split(/\&/,$rep);
7538: my %returnhash=();
7539: if (!($rep =~ /^error/ )) {
7540: foreach my $item (@pairs) {
7541: my ($key,$value)=split(/=/,$item,2);
7542: $key = unescape($key) unless $escapedkeys;
7543: #$key = &unescape($key);
7544: next if ($key =~ /^error: 2 /);
7545: $returnhash{$key}=&thaw_unescape($value);
7546: }
7547: }
7548: return %returnhash;
7549: }
7550:
7551:
7552: # --------------------------------------------------------- dumpstore interface
7553:
7554: sub dumpstore {
7555: my ($namespace,$udomain,$uname,$regexp,$range)=@_;
7556: # same as dump but keys must be escaped. They may contain colon separated
7557: # lists of values that may themself contain colons (e.g. symbs).
7558: return &dump($namespace, $udomain, $uname, $regexp, $range, 1);
7559: }
7560:
7561: # -------------------------------------------------------------- keys interface
7562:
7563: sub getkeys {
7564: my ($namespace,$udomain,$uname)=@_;
7565: if (!$udomain) { $udomain=$env{'user.domain'}; }
7566: if (!$uname) { $uname=$env{'user.name'}; }
7567: my $uhome=&homeserver($uname,$udomain);
7568: my $rep=reply("keys:$udomain:$uname:$namespace",$uhome);
7569: my @keyarray=();
7570: foreach my $key (split(/\&/,$rep)) {
7571: next if ($key =~ /^error: 2 /);
7572: push(@keyarray,&unescape($key));
7573: }
7574: return @keyarray;
7575: }
7576:
7577: # --------------------------------------------------------------- currentdump
7578: sub currentdump {
7579: my ($courseid,$sdom,$sname)=@_;
7580: $courseid = $env{'request.course.id'} if (! defined($courseid));
7581: $sdom = $env{'user.domain'} if (! defined($sdom));
7582: $sname = $env{'user.name'} if (! defined($sname));
7583: my $uhome = &homeserver($sname,$sdom);
7584: my $rep;
7585:
7586: if (grep { $_ eq $uhome } current_machine_ids()) {
7587: $rep = LONCAPA::Lond::dump_profile_database(join(":", ($sdom, $sname,
7588: $courseid)));
7589: } else {
7590: $rep = reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);
7591: }
7592:
7593: return if ($rep =~ /^(error:|no_such_host)/);
7594: #
7595: my %returnhash=();
7596: #
7597: if ($rep eq 'unknown_cmd') {
7598: # an old lond will not know currentdump
7599: # Do a dump and make it look like a currentdump
7600: my @tmp = &dumpstore($courseid,$sdom,$sname,'.');
7601: return if ($tmp[0] =~ /^(error:|no_such_host)/);
7602: my %hash = @tmp;
7603: @tmp=();
7604: %returnhash = %{&convert_dump_to_currentdump(\%hash)};
7605: } else {
7606: my @pairs=split(/\&/,$rep);
7607: foreach my $pair (@pairs) {
7608: my ($key,$value)=split(/=/,$pair,2);
7609: my ($symb,$param) = split(/:/,$key);
7610: $returnhash{&unescape($symb)}->{&unescape($param)} =
7611: &thaw_unescape($value);
7612: }
7613: }
7614: return %returnhash;
7615: }
7616:
7617: sub convert_dump_to_currentdump{
7618: my %hash = %{shift()};
7619: my %returnhash;
7620: # Code ripped from lond, essentially. The only difference
7621: # here is the unescaping done by lonnet::dump(). Conceivably
7622: # we might run in to problems with parameter names =~ /^v\./
7623: while (my ($key,$value) = each(%hash)) {
7624: my ($v,$symb,$param) = split(/:/,$key);
7625: $symb = &unescape($symb);
7626: $param = &unescape($param);
7627: next if ($v eq 'version' || $symb eq 'keys');
7628: next if (exists($returnhash{$symb}) &&
7629: exists($returnhash{$symb}->{$param}) &&
7630: $returnhash{$symb}->{'v.'.$param} > $v);
7631: $returnhash{$symb}->{$param}=$value;
7632: $returnhash{$symb}->{'v.'.$param}=$v;
7633: }
7634: #
7635: # Remove all of the keys in the hashes which keep track of
7636: # the version of the parameter.
7637: while (my ($symb,$param_hash) = each(%returnhash)) {
7638: # use a foreach because we are going to delete from the hash.
7639: foreach my $key (keys(%$param_hash)) {
7640: delete($param_hash->{$key}) if ($key =~ /^v\./);
7641: }
7642: }
7643: return \%returnhash;
7644: }
7645:
7646: # ------------------------------------------------------ critical inc interface
7647:
7648: sub cinc {
7649: return &inc(@_,'critical');
7650: }
7651:
7652: # --------------------------------------------------------------- inc interface
7653:
7654: sub inc {
7655: my ($namespace,$store,$udomain,$uname,$critical) = @_;
7656: if (!$udomain) { $udomain=$env{'user.domain'}; }
7657: if (!$uname) { $uname=$env{'user.name'}; }
7658: my $uhome=&homeserver($uname,$udomain);
7659: my $items='';
7660: if (! ref($store)) {
7661: # got a single value, so use that instead
7662: $items = &escape($store).'=&';
7663: } elsif (ref($store) eq 'SCALAR') {
7664: $items = &escape($$store).'=&';
7665: } elsif (ref($store) eq 'ARRAY') {
7666: $items = join('=&',map {&escape($_);} @{$store});
7667: } elsif (ref($store) eq 'HASH') {
7668: while (my($key,$value) = each(%{$store})) {
7669: $items.= &escape($key).'='.&escape($value).'&';
7670: }
7671: }
7672: $items=~s/\&$//;
7673: if ($critical) {
7674: return &critical("inc:$udomain:$uname:$namespace:$items",$uhome);
7675: } else {
7676: return &reply("inc:$udomain:$uname:$namespace:$items",$uhome);
7677: }
7678: }
7679:
7680: # --------------------------------------------------------------- put interface
7681:
7682: sub put {
7683: my ($namespace,$storehash,$udomain,$uname,$encrypt)=@_;
7684: if (!$udomain) { $udomain=$env{'user.domain'}; }
7685: if (!$uname) { $uname=$env{'user.name'}; }
7686: my $uhome=&homeserver($uname,$udomain);
7687: my $items='';
7688: foreach my $item (keys(%$storehash)) {
7689: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
7690: }
7691: $items=~s/\&$//;
7692: if ($encrypt) {
7693: return &reply("encrypt:put:$udomain:$uname:$namespace:$items",$uhome);
7694: } else {
7695: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
7696: }
7697: }
7698:
7699: # ------------------------------------------------------------ newput interface
7700:
7701: sub newput {
7702: my ($namespace,$storehash,$udomain,$uname)=@_;
7703: if (!$udomain) { $udomain=$env{'user.domain'}; }
7704: if (!$uname) { $uname=$env{'user.name'}; }
7705: my $uhome=&homeserver($uname,$udomain);
7706: my $items='';
7707: foreach my $key (keys(%$storehash)) {
7708: $items.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
7709: }
7710: $items=~s/\&$//;
7711: return &reply("newput:$udomain:$uname:$namespace:$items",$uhome);
7712: }
7713:
7714: # --------------------------------------------------------- putstore interface
7715:
7716: sub putstore {
7717: my ($namespace,$symb,$version,$storehash,$udomain,$uname,$tolog)=@_;
7718: if (!$udomain) { $udomain=$env{'user.domain'}; }
7719: if (!$uname) { $uname=$env{'user.name'}; }
7720: my $uhome=&homeserver($uname,$udomain);
7721: my $items='';
7722: foreach my $key (keys(%$storehash)) {
7723: $items.= &escape($key).'='.&freeze_escape($storehash->{$key}).'&';
7724: }
7725: $items=~s/\&$//;
7726: my $esc_symb=&escape($symb);
7727: my $esc_v=&escape($version);
7728: my $reply =
7729: &reply("putstore:$udomain:$uname:$namespace:$esc_symb:$esc_v:$items",
7730: $uhome);
7731: if (($tolog) && ($reply eq 'ok')) {
7732: my $namevalue='';
7733: foreach my $key (keys(%{$storehash})) {
7734: $namevalue.=&escape($key).'='.&freeze_escape($storehash->{$key}).'&';
7735: }
7736: my $ip = &get_requestor_ip();
7737: $namevalue .= 'ip='.&escape($ip).
7738: '&host='.&escape($perlvar{'lonHostID'}).
7739: '&version='.$esc_v.
7740: '&by='.&escape($env{'user.name'}.':'.$env{'user.domain'});
7741: &courselog($symb.':'.$uname.':'.$udomain.':PUTSTORE:'.$namevalue);
7742: }
7743: if ($reply eq 'unknown_cmd') {
7744: # gfall back to way things use to be done
7745: return &old_putstore($namespace,$symb,$version,$storehash,$udomain,
7746: $uname);
7747: }
7748: return $reply;
7749: }
7750:
7751: sub old_putstore {
7752: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
7753: if (!$udomain) { $udomain=$env{'user.domain'}; }
7754: if (!$uname) { $uname=$env{'user.name'}; }
7755: my $uhome=&homeserver($uname,$udomain);
7756: my %newstorehash;
7757: foreach my $item (keys(%$storehash)) {
7758: my $key = $version.':'.&escape($symb).':'.$item;
7759: $newstorehash{$key} = $storehash->{$item};
7760: }
7761: my $items='';
7762: my %allitems = ();
7763: foreach my $item (keys(%newstorehash)) {
7764: if ($item =~ m/^([^\:]+):([^\:]+):([^\:]+)$/) {
7765: my $key = $1.':keys:'.$2;
7766: $allitems{$key} .= $3.':';
7767: }
7768: $items.=$item.'='.&freeze_escape($newstorehash{$item}).'&';
7769: }
7770: foreach my $item (keys(%allitems)) {
7771: $allitems{$item} =~ s/\:$//;
7772: $items.= $item.'='.$allitems{$item}.'&';
7773: }
7774: $items=~s/\&$//;
7775: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
7776: }
7777:
7778: # ------------------------------------------------------ critical put interface
7779:
7780: sub cput {
7781: my ($namespace,$storehash,$udomain,$uname)=@_;
7782: if (!$udomain) { $udomain=$env{'user.domain'}; }
7783: if (!$uname) { $uname=$env{'user.name'}; }
7784: my $uhome=&homeserver($uname,$udomain);
7785: my $items='';
7786: foreach my $item (keys(%$storehash)) {
7787: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
7788: }
7789: $items=~s/\&$//;
7790: return &critical("put:$udomain:$uname:$namespace:$items",$uhome);
7791: }
7792:
7793: # -------------------------------------------------------------- eget interface
7794:
7795: sub eget {
7796: my ($namespace,$storearr,$udomain,$uname)=@_;
7797: my $items='';
7798: foreach my $item (@$storearr) {
7799: $items.=&escape($item).'&';
7800: }
7801: $items=~s/\&$//;
7802: if (!$udomain) { $udomain=$env{'user.domain'}; }
7803: if (!$uname) { $uname=$env{'user.name'}; }
7804: my $uhome=&homeserver($uname,$udomain);
7805: my $rep=&reply("eget:$udomain:$uname:$namespace:$items",$uhome);
7806: my @pairs=split(/\&/,$rep);
7807: my %returnhash=();
7808: my $i=0;
7809: foreach my $item (@$storearr) {
7810: $returnhash{$item}=&thaw_unescape($pairs[$i]);
7811: $i++;
7812: }
7813: return %returnhash;
7814: }
7815:
7816: # ------------------------------------------------------------ tmpput interface
7817: sub tmpput {
7818: my ($storehash,$server,$context)=@_;
7819: my $items='';
7820: foreach my $item (keys(%$storehash)) {
7821: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
7822: }
7823: $items=~s/\&$//;
7824: if (defined($context)) {
7825: $items .= ':'.&escape($context);
7826: }
7827: return &reply("tmpput:$items",$server);
7828: }
7829:
7830: # ------------------------------------------------------------ tmpget interface
7831: sub tmpget {
7832: my ($token,$server)=@_;
7833: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
7834: my $rep=&reply("tmpget:$token",$server);
7835: my %returnhash;
7836: if ($rep =~ /^(con_lost|error|no_such_host)/i) {
7837: return %returnhash;
7838: }
7839: foreach my $item (split(/\&/,$rep)) {
7840: my ($key,$value)=split(/=/,$item);
7841: $returnhash{&unescape($key)}=&thaw_unescape($value);
7842: }
7843: return %returnhash;
7844: }
7845:
7846: # ------------------------------------------------------------ tmpdel interface
7847: sub tmpdel {
7848: my ($token,$server)=@_;
7849: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
7850: return &reply("tmpdel:$token",$server);
7851: }
7852:
7853: # ------------------------------------------------------------ get_timebased_id
7854:
7855: sub get_timebased_id {
7856: my ($prefix,$keyid,$namespace,$cdom,$cnum,$idtype,$who,$locktries,
7857: $maxtries) = @_;
7858: my ($newid,$error,$dellock);
7859: unless (($prefix =~ /^\w+$/) && ($keyid =~ /^\w+$/) && ($namespace ne '')) {
7860: return ('','ok','invalid call to get suffix');
7861: }
7862:
7863: # set defaults for any optional args for which values were not supplied
7864: if ($who eq '') {
7865: $who = $env{'user.name'}.':'.$env{'user.domain'};
7866: }
7867: if (!$locktries) {
7868: $locktries = 3;
7869: }
7870: if (!$maxtries) {
7871: $maxtries = 10;
7872: }
7873:
7874: if (($cdom eq '') || ($cnum eq '')) {
7875: if ($env{'request.course.id'}) {
7876: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
7877: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
7878: }
7879: if (($cdom eq '') || ($cnum eq '')) {
7880: return ('','ok','call to get suffix not in course context');
7881: }
7882: }
7883:
7884: # construct locking item
7885: my $lockhash = {
7886: $prefix."\0".'locked_'.$keyid => $who,
7887: };
7888: my $tries = 0;
7889:
7890: # attempt to get lock on nohist_$namespace file
7891: my $gotlock = &newput('nohist_'.$namespace,$lockhash,$cdom,$cnum);
7892: while (($gotlock ne 'ok') && $tries <$locktries) {
7893: $tries ++;
7894: sleep 1;
7895: $gotlock = &newput('nohist_'.$namespace,$lockhash,$cdom,$cnum);
7896: }
7897:
7898: # attempt to get unique identifier, based on current timestamp
7899: if ($gotlock eq 'ok') {
7900: my %inuse = &dump('nohist_'.$namespace,$cdom,$cnum,$prefix);
7901: my $id = time;
7902: $newid = $id;
7903: if ($idtype eq 'addcode') {
7904: $newid .= &sixnum_code();
7905: }
7906: my $idtries = 0;
7907: while (exists($inuse{$prefix."\0".$newid}) && $idtries < $maxtries) {
7908: if ($idtype eq 'concat') {
7909: $newid = $id.$idtries;
7910: } elsif ($idtype eq 'addcode') {
7911: $newid = $newid.&sixnum_code();
7912: } else {
7913: $newid ++;
7914: }
7915: $idtries ++;
7916: }
7917: if (!exists($inuse{$prefix."\0".$newid})) {
7918: my %new_item = (
7919: $prefix."\0".$newid => $who,
7920: );
7921: my $putresult = &put('nohist_'.$namespace,\%new_item,
7922: $cdom,$cnum);
7923: if ($putresult ne 'ok') {
7924: undef($newid);
7925: $error = 'error saving new item: '.$putresult;
7926: }
7927: } else {
7928: undef($newid);
7929: $error = ('error: no unique suffix available for the new item ');
7930: }
7931: # remove lock
7932: my @del_lock = ($prefix."\0".'locked_'.$keyid);
7933: $dellock = &Apache::lonnet::del('nohist_'.$namespace,\@del_lock,$cdom,$cnum);
7934: } else {
7935: $error = "error: could not obtain lockfile\n";
7936: $dellock = 'ok';
7937: if (($prefix eq 'paste') && ($namespace eq 'courseeditor') && ($keyid eq 'num')) {
7938: $dellock = 'nolock';
7939: }
7940: }
7941: return ($newid,$dellock,$error);
7942: }
7943:
7944: sub sixnum_code {
7945: my $code;
7946: for (0..6) {
7947: $code .= int( rand(9) );
7948: }
7949: return $code;
7950: }
7951:
7952: # -------------------------------------------------- portfolio access checking
7953:
7954: sub portfolio_access {
7955: my ($requrl,$clientip) = @_;
7956: my (undef,$udom,$unum,$file_name,$group) = &parse_portfolio_url($requrl);
7957: my $result = &get_portfolio_access($udom,$unum,$file_name,$group,$clientip);
7958: if ($result) {
7959: my %setters;
7960: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
7961: my ($startblock,$endblock,$triggerblock,$by_ip,$blockdom) =
7962: &Apache::loncommon::blockcheck(\%setters,'port',$clientip,$unum,$udom);
7963: if (($startblock && $endblock) || ($by_ip)) {
7964: return 'B';
7965: }
7966: } else {
7967: my ($startblock,$endblock,$triggerblock,$by_ip,$blockdom) =
7968: &Apache::loncommon::blockcheck(\%setters,'port',$clientip);
7969: if (($startblock && $endblock) || ($by_ip)) {
7970: return 'B';
7971: }
7972: }
7973: }
7974: if ($result eq 'ok') {
7975: return 'F';
7976: } elsif ($result =~ /^[^:]+:guest_/) {
7977: return 'A';
7978: }
7979: return '';
7980: }
7981:
7982: sub get_portfolio_access {
7983: my ($udom,$unum,$file_name,$group,$clientip,$access_hash) = @_;
7984:
7985: if (!ref($access_hash)) {
7986: my $current_perms = &get_portfile_permissions($udom,$unum);
7987: my %access_controls = &get_access_controls($current_perms,$group,
7988: $file_name);
7989: $access_hash = $access_controls{$file_name};
7990: }
7991:
7992: my ($public,$guest,@domains,@users,@courses,@groups,@ips);
7993: my $now = time;
7994: if (ref($access_hash) eq 'HASH') {
7995: foreach my $key (keys(%{$access_hash})) {
7996: my ($num,$scope,$end,$start) = ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
7997: if ($start > $now) {
7998: next;
7999: }
8000: if ($end && $end<$now) {
8001: next;
8002: }
8003: if ($scope eq 'public') {
8004: $public = $key;
8005: last;
8006: } elsif ($scope eq 'guest') {
8007: $guest = $key;
8008: } elsif ($scope eq 'domains') {
8009: push(@domains,$key);
8010: } elsif ($scope eq 'users') {
8011: push(@users,$key);
8012: } elsif ($scope eq 'course') {
8013: push(@courses,$key);
8014: } elsif ($scope eq 'group') {
8015: push(@groups,$key);
8016: } elsif ($scope eq 'ip') {
8017: push(@ips,$key);
8018: }
8019: }
8020: if ($public) {
8021: return 'ok';
8022: } elsif (@ips > 0) {
8023: my $allowed;
8024: foreach my $ipkey (@ips) {
8025: if (ref($access_hash->{$ipkey}{'ip'}) eq 'ARRAY') {
8026: if (&Apache::loncommon::check_ip_acc(join(',',@{$access_hash->{$ipkey}{'ip'}}),$clientip)) {
8027: $allowed = 1;
8028: last;
8029: }
8030: }
8031: }
8032: if ($allowed) {
8033: return 'ok';
8034: }
8035: }
8036: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
8037: if ($guest) {
8038: return $guest;
8039: }
8040: } else {
8041: if (@domains > 0) {
8042: foreach my $domkey (@domains) {
8043: if (ref($access_hash->{$domkey}{'dom'}) eq 'ARRAY') {
8044: if (grep(/^\Q$env{'user.domain'}\E$/,@{$access_hash->{$domkey}{'dom'}})) {
8045: return 'ok';
8046: }
8047: }
8048: }
8049: }
8050: if (@users > 0) {
8051: foreach my $userkey (@users) {
8052: if (ref($access_hash->{$userkey}{'users'}) eq 'ARRAY') {
8053: foreach my $item (@{$access_hash->{$userkey}{'users'}}) {
8054: if (ref($item) eq 'HASH') {
8055: if (($item->{'uname'} eq $env{'user.name'}) &&
8056: ($item->{'udom'} eq $env{'user.domain'})) {
8057: return 'ok';
8058: }
8059: }
8060: }
8061: }
8062: }
8063: }
8064: my %roleshash;
8065: my @courses_and_groups = @courses;
8066: push(@courses_and_groups,@groups);
8067: if (@courses_and_groups > 0) {
8068: my (%allgroups,%allroles);
8069: my ($start,$end,$role,$sec,$group);
8070: foreach my $envkey (%env) {
8071: if ($envkey =~ m-^user\.role\.(gr|cc|co|in|ta|ep|ad|st)\./($match_domain)/($match_courseid)/?([^/]*)$-) {
8072: my $cid = $2.'_'.$3;
8073: if ($1 eq 'gr') {
8074: $group = $4;
8075: $allgroups{$cid}{$group} = $env{$envkey};
8076: } else {
8077: if ($4 eq '') {
8078: $sec = 'none';
8079: } else {
8080: $sec = $4;
8081: }
8082: $allroles{$cid}{$1}{$sec} = $env{$envkey};
8083: }
8084: } elsif ($envkey =~ m-^user\.role\./cr/($match_domain/$match_username/\w*)./($match_domain)/($match_courseid)/?([^/]*)$-) {
8085: my $cid = $2.'_'.$3;
8086: if ($4 eq '') {
8087: $sec = 'none';
8088: } else {
8089: $sec = $4;
8090: }
8091: $allroles{$cid}{$1}{$sec} = $env{$envkey};
8092: }
8093: }
8094: if (keys(%allroles) == 0) {
8095: return;
8096: }
8097: foreach my $key (@courses_and_groups) {
8098: my %content = %{$$access_hash{$key}};
8099: my $cnum = $content{'number'};
8100: my $cdom = $content{'domain'};
8101: my $cid = $cdom.'_'.$cnum;
8102: if (!exists($allroles{$cid})) {
8103: next;
8104: }
8105: foreach my $role_id (keys(%{$content{'roles'}})) {
8106: my @sections = @{$content{'roles'}{$role_id}{'section'}};
8107: my @groups = @{$content{'roles'}{$role_id}{'group'}};
8108: my @status = @{$content{'roles'}{$role_id}{'access'}};
8109: my @roles = @{$content{'roles'}{$role_id}{'role'}};
8110: foreach my $role (keys(%{$allroles{$cid}})) {
8111: if ((grep/^all$/,@roles) || (grep/^\Q$role\E$/,@roles)) {
8112: foreach my $sec (keys(%{$allroles{$cid}{$role}})) {
8113: if (&course_group_datechecker($allroles{$cid}{$role}{$sec},$now,\@status) eq 'ok') {
8114: if (grep/^all$/,@sections) {
8115: return 'ok';
8116: } else {
8117: if (grep/^$sec$/,@sections) {
8118: return 'ok';
8119: }
8120: }
8121: }
8122: }
8123: if (keys(%{$allgroups{$cid}}) == 0) {
8124: if (grep/^none$/,@groups) {
8125: return 'ok';
8126: }
8127: } else {
8128: if (grep/^all$/,@groups) {
8129: return 'ok';
8130: }
8131: foreach my $group (keys(%{$allgroups{$cid}})) {
8132: if (grep/^$group$/,@groups) {
8133: return 'ok';
8134: }
8135: }
8136: }
8137: }
8138: }
8139: }
8140: }
8141: }
8142: if ($guest) {
8143: return $guest;
8144: }
8145: }
8146: }
8147: return;
8148: }
8149:
8150: sub course_group_datechecker {
8151: my ($dates,$now,$status) = @_;
8152: my ($start,$end) = split(/\./,$dates);
8153: if (!$start && !$end) {
8154: return 'ok';
8155: }
8156: if (grep/^active$/,@{$status}) {
8157: if (((!$start) || ($start && $start <= $now)) && ((!$end) || ($end && $end >= $now))) {
8158: return 'ok';
8159: }
8160: }
8161: if (grep/^previous$/,@{$status}) {
8162: if ($end > $now ) {
8163: return 'ok';
8164: }
8165: }
8166: if (grep/^future$/,@{$status}) {
8167: if ($start > $now) {
8168: return 'ok';
8169: }
8170: }
8171: return;
8172: }
8173:
8174: sub parse_portfolio_url {
8175: my ($url) = @_;
8176:
8177: my ($type,$udom,$unum,$group,$file_name);
8178:
8179: if ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_username)/portfolio(/.+)$-) {
8180: $type = 1;
8181: $udom = $1;
8182: $unum = $2;
8183: $file_name = $3;
8184: } elsif ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_courseid)/groups/([^/]+)/portfolio/(.+)$-) {
8185: $type = 2;
8186: $udom = $1;
8187: $unum = $2;
8188: $group = $3;
8189: $file_name = $3.'/'.$4;
8190: }
8191: if (wantarray) {
8192: return ($type,$udom,$unum,$file_name,$group);
8193: }
8194: return $type;
8195: }
8196:
8197: sub is_portfolio_url {
8198: my ($url) = @_;
8199: return scalar(&parse_portfolio_url($url));
8200: }
8201:
8202: sub is_portfolio_file {
8203: my ($file) = @_;
8204: if (($file =~ /^portfolio/) || ($file =~ /^groups\/\w+\/portfolio/)) {
8205: return 1;
8206: }
8207: return;
8208: }
8209:
8210: sub is_coursetool_logo {
8211: my ($uri) = @_;
8212: if ($env{'request.course.id'}) {
8213: my $courseurl = &courseid_to_courseurl($env{'request.course.id'});
8214: if ($uri =~ m{^/*uploaded\Q$courseurl\E/toollogo/\d+/[^/]+$}) {
8215: return 1;
8216: }
8217: }
8218: return;
8219: }
8220:
8221: sub usertools_access {
8222: my ($uname,$udom,$tool,$action,$context,$userenvref,$domdefref,$is_advref)=@_;
8223: my ($access,%tools);
8224: if ($context eq '') {
8225: $context = 'tools';
8226: }
8227: if ($context eq 'requestcourses') {
8228: %tools = (
8229: official => 1,
8230: unofficial => 1,
8231: community => 1,
8232: textbook => 1,
8233: placement => 1,
8234: lti => 1,
8235: );
8236: } elsif ($context eq 'requestauthor') {
8237: %tools = (
8238: requestauthor => 1,
8239: );
8240: } elsif ($context eq 'authordefaults') {
8241: %tools = (
8242: webdav => 1,
8243: );
8244: } else {
8245: %tools = (
8246: aboutme => 1,
8247: blog => 1,
8248: portfolio => 1,
8249: portaccess => 1,
8250: timezone => 1,
8251: );
8252: }
8253: return if (!defined($tools{$tool}));
8254:
8255: if (($udom eq '') || ($uname eq '')) {
8256: $udom = $env{'user.domain'};
8257: $uname = $env{'user.name'};
8258: }
8259:
8260: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
8261: if ($action ne 'reload') {
8262: if ($context eq 'requestcourses') {
8263: return $env{'environment.canrequest.'.$tool};
8264: } elsif ($context eq 'requestauthor') {
8265: return $env{'environment.canrequest.author'};
8266: } elsif ($context eq 'authordefaults') {
8267: if ($tool eq 'webdav') {
8268: return $env{'environment.availabletools.'.$tool};
8269: }
8270: } else {
8271: return $env{'environment.availabletools.'.$tool};
8272: }
8273: }
8274: }
8275:
8276: my ($toolstatus,$inststatus,$envkey);
8277: if ($context eq 'requestauthor') {
8278: $envkey = $context;
8279: } elsif ($context eq 'authordefaults') {
8280: if ($tool eq 'webdav') {
8281: $envkey = 'tools.'.$tool;
8282: }
8283: } else {
8284: $envkey = $context.'.'.$tool;
8285: }
8286:
8287: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
8288: ($action ne 'reload')) {
8289: $toolstatus = $env{'environment.'.$envkey};
8290: $inststatus = $env{'environment.inststatus'};
8291: } else {
8292: if (ref($userenvref) eq 'HASH') {
8293: $toolstatus = $userenvref->{$envkey};
8294: $inststatus = $userenvref->{'inststatus'};
8295: } else {
8296: my %userenv = &userenvironment($udom,$uname,$envkey,'inststatus');
8297: $toolstatus = $userenv{$envkey};
8298: $inststatus = $userenv{'inststatus'};
8299: }
8300: }
8301:
8302: if ($toolstatus ne '') {
8303: if ($toolstatus) {
8304: $access = 1;
8305: } else {
8306: $access = 0;
8307: }
8308: return $access;
8309: }
8310:
8311: my ($is_adv,%domdef);
8312: if (ref($is_advref) eq 'HASH') {
8313: $is_adv = $is_advref->{'is_adv'};
8314: } else {
8315: $is_adv = &is_advanced_user($udom,$uname);
8316: }
8317: if (ref($domdefref) eq 'HASH') {
8318: %domdef = %{$domdefref};
8319: } else {
8320: %domdef = &get_domain_defaults($udom);
8321: }
8322: if (ref($domdef{$tool}) eq 'HASH') {
8323: if ($is_adv) {
8324: if ($domdef{$tool}{'_LC_adv'} ne '') {
8325: if ($domdef{$tool}{'_LC_adv'}) {
8326: $access = 1;
8327: } else {
8328: $access = 0;
8329: }
8330: return $access;
8331: }
8332: }
8333: if ($inststatus ne '') {
8334: my ($hasaccess,$hasnoaccess);
8335: foreach my $affiliation (split(/:/,$inststatus)) {
8336: if ($domdef{$tool}{$affiliation} ne '') {
8337: if ($domdef{$tool}{$affiliation}) {
8338: $hasaccess = 1;
8339: } else {
8340: $hasnoaccess = 1;
8341: }
8342: }
8343: }
8344: if ($hasaccess || $hasnoaccess) {
8345: if ($hasaccess) {
8346: $access = 1;
8347: } elsif ($hasnoaccess) {
8348: $access = 0;
8349: }
8350: return $access;
8351: }
8352: } else {
8353: if ($domdef{$tool}{'default'} ne '') {
8354: if ($domdef{$tool}{'default'}) {
8355: $access = 1;
8356: } elsif ($domdef{$tool}{'default'} == 0) {
8357: $access = 0;
8358: }
8359: return $access;
8360: }
8361: }
8362: } else {
8363: if (($context eq 'tools') && ($tool ne 'webdav')) {
8364: $access = 1;
8365: } else {
8366: $access = 0;
8367: }
8368: return $access;
8369: }
8370: }
8371:
8372: sub is_course_owner {
8373: my ($cdom,$cnum,$udom,$uname) = @_;
8374: if (($udom eq '') || ($uname eq '')) {
8375: $udom = $env{'user.domain'};
8376: $uname = $env{'user.name'};
8377: }
8378: unless (($udom eq '') || ($uname eq '')) {
8379: if (exists($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'})) {
8380: if ($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'} eq $uname.':'.$udom) {
8381: return 1;
8382: } else {
8383: my %courseinfo = &coursedescription($cdom.'/'.$cnum);
8384: if ($courseinfo{'internal.courseowner'} eq $uname.':'.$udom) {
8385: return 1;
8386: }
8387: }
8388: }
8389: }
8390: return;
8391: }
8392:
8393: sub is_advanced_user {
8394: my ($udom,$uname,$nocache) = @_;
8395: my ($is_adv,$is_author,$use_cache,$hashid);
8396: if ($udom ne '' && $uname ne '') {
8397: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
8398: if (wantarray) {
8399: return ($env{'user.adv'},$env{'user.author'});
8400: } else {
8401: return $env{'user.adv'};
8402: }
8403: } elsif (!$nocache) {
8404: $use_cache = 1;
8405: $hashid = "$udom:$uname";
8406: my ($info,$cached)=&is_cached_new('isadvau',$hashid);
8407: if ($cached) {
8408: ($is_adv,$is_author) = split(/:/,$info);
8409: if (wantarray) {
8410: return ($is_adv,$is_author);
8411: }
8412: return $is_adv;
8413: }
8414: }
8415: }
8416: my %roleshash = &get_my_roles($uname,$udom,'userroles',undef,undef,undef,1);
8417: my %allroles;
8418: foreach my $role (keys(%roleshash)) {
8419: my ($trest,$tdomain,$trole,$sec) = split(/:/,$role);
8420: my $area = '/'.$tdomain.'/'.$trest;
8421: if ($sec ne '') {
8422: $area .= '/'.$sec;
8423: }
8424: if (($area ne '') && ($trole ne '')) {
8425: my $spec=$trole.'.'.$area;
8426: if ($trole =~ /^cr\//) {
8427: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
8428: } elsif ($trole ne 'gr') {
8429: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
8430: }
8431: if ($trole eq 'au') {
8432: $is_author = 1;
8433: }
8434: }
8435: }
8436: foreach my $role (keys(%allroles)) {
8437: last if ($is_adv);
8438: foreach my $item (split(/:/,$allroles{$role})) {
8439: if ($item ne '') {
8440: my ($privilege,$restrictions)=split(/&/,$item);
8441: if ($privilege eq 'adv') {
8442: $is_adv = 1;
8443: last;
8444: }
8445: }
8446: }
8447: }
8448: if ($use_cache) {
8449: my $cachetime = 600;
8450: &do_cache_new('isadvau',$hashid,$is_adv.':'.$is_author,$cachetime);
8451: }
8452: if (wantarray) {
8453: return ($is_adv,$is_author);
8454: }
8455: return $is_adv;
8456: }
8457:
8458: sub check_can_request {
8459: my ($dom,$can_request,$request_domains,$uname,$udom) = @_;
8460: my $canreq = 0;
8461: if (($env{'user.name'} ne '') && ($env{'user.domain'} ne '')) {
8462: $uname = $env{'user.name'};
8463: $udom = $env{'user.domain'};
8464: }
8465: my ($types,$typename) = &Apache::loncommon::course_types();
8466: my @options = ('approval','validate','autolimit');
8467: my $optregex = join('|',@options);
8468: if ((ref($can_request) eq 'HASH') && (ref($types) eq 'ARRAY')) {
8469: my %willtrust;
8470: foreach my $type (@{$types}) {
8471: if (&usertools_access($uname,$udom,$type,undef,
8472: 'requestcourses')) {
8473: $canreq ++;
8474: if (ref($request_domains) eq 'HASH') {
8475: push(@{$request_domains->{$type}},$udom);
8476: }
8477: if ($dom eq $udom) {
8478: $can_request->{$type} = 1;
8479: }
8480: }
8481: if (($env{'user.name'} ne '') && ($env{'user.domain'} ne '') &&
8482: ($env{'environment.reqcrsotherdom.'.$type} ne '')) {
8483: my @curr = split(',',$env{'environment.reqcrsotherdom.'.$type});
8484: if (@curr > 0) {
8485: foreach my $item (@curr) {
8486: if (ref($request_domains) eq 'HASH') {
8487: my ($otherdom) = ($item =~ /^($match_domain):($optregex)(=?\d*)$/);
8488: if ($otherdom ne '') {
8489: unless (exists($willtrust{$otherdom})) {
8490: $willtrust{$otherdom} = &will_trust('reqcrs',$env{'user.domain'},$otherdom);
8491: }
8492: if ($willtrust{$otherdom}) {
8493: if (ref($request_domains->{$type}) eq 'ARRAY') {
8494: unless (grep(/^\Q$otherdom\E$/,@{$request_domains->{$type}})) {
8495: push(@{$request_domains->{$type}},$otherdom);
8496: }
8497: } else {
8498: push(@{$request_domains->{$type}},$otherdom);
8499: }
8500: }
8501: }
8502: }
8503: }
8504: unless ($dom eq $env{'user.domain'}) {
8505: $canreq ++;
8506: if (grep(/^\Q$dom\E:($optregex)(=?\d*)$/,@curr)) {
8507: $can_request->{$type} = 1;
8508: }
8509: }
8510: }
8511: }
8512: }
8513: }
8514: return $canreq;
8515: }
8516:
8517: # ---------------------------------------------- Custom access rule evaluation
8518:
8519: sub customaccess {
8520: my ($priv,$uri)=@_;
8521: my ($urole,$urealm)=split(/\./,$env{'request.role'},2);
8522: my (undef,$udom,$ucrs,$usec)=split(/\//,$urealm);
8523: $udom = &LONCAPA::clean_domain($udom);
8524: $ucrs = &LONCAPA::clean_username($ucrs);
8525: my $access=0;
8526: foreach my $right (split(/\s*\,\s*/,&metadata($uri,'rule_rights'))) {
8527: my ($effect,$realm,$role,$type)=split(/\:/,$right);
8528: if ($type eq 'user') {
8529: foreach my $scope (split(/\s*\,\s*/,$realm)) {
8530: my ($tdom,$tuname)=split(m{/},$scope);
8531: if ($tdom) {
8532: if ($tdom ne $env{'user.domain'}) { next; }
8533: }
8534: if ($tuname) {
8535: if ($tuname ne $env{'user.name'}) { next; }
8536: }
8537: $access=($effect eq 'allow');
8538: last;
8539: }
8540: } else {
8541: if ($role) {
8542: if ($role ne $urole) { next; }
8543: }
8544: foreach my $scope (split(/\s*\,\s*/,$realm)) {
8545: my ($tdom,$tcrs,$tsec)=split(/\_/,$scope);
8546: if ($tdom) {
8547: if ($tdom ne $udom) { next; }
8548: }
8549: if ($tcrs) {
8550: if ($tcrs ne $ucrs) { next; }
8551: }
8552: if ($tsec) {
8553: if ($tsec ne $usec) { next; }
8554: }
8555: $access=($effect eq 'allow');
8556: last;
8557: }
8558: if ($realm eq '' && $role eq '') {
8559: $access=($effect eq 'allow');
8560: }
8561: }
8562: }
8563: return $access;
8564: }
8565:
8566: # ------------------------------------------------- Check for a user privilege
8567:
8568: sub allowed {
8569: my ($priv,$uri,$symb,$role,$clientip,$noblockcheck,$ignorecache,$nodeeplinkcheck,$nodeeplinkout)=@_;
8570: my $ver_orguri=$uri;
8571: $uri=&deversion($uri);
8572: my $orguri=$uri;
8573: $uri=&declutter($uri);
8574:
8575: if ($priv eq 'evb') {
8576: # Evade communication block restrictions for specified role in a course or domain
8577: if ($env{'user.priv.'.$role} =~/evb\&([^\:]*)/) {
8578: return $1;
8579: } else {
8580: return;
8581: }
8582: }
8583:
8584: if (defined($env{'allowed.'.$priv})) { return $env{'allowed.'.$priv}; }
8585: # Free bre access to adm and meta resources
8586: if (((($uri=~/^adm\//) && ($uri !~ m{/(?:smppg|bulletinboard|viewclasslist|aboutme|ext\.tool)$}))
8587: || (($uri=~/\.meta$/) && ($uri!~m|^uploaded/|) ))
8588: && ($priv eq 'bre')) {
8589: return 'F';
8590: }
8591:
8592: # Free bre access to user's own portfolio contents
8593: my ($space,$domain,$name,@dir)=split('/',$uri);
8594: if (($space=~/^(uploaded|editupload)$/) && ($env{'user.name'} eq $name) &&
8595: ($env{'user.domain'} eq $domain) && ('portfolio' eq $dir[0])) {
8596: my %setters;
8597: my ($startblock,$endblock,$triggerblock,$by_ip,$blockdom) =
8598: &Apache::loncommon::blockcheck(\%setters,'port',$clientip);
8599: if (($startblock && $endblock) || ($by_ip)) {
8600: return 'B';
8601: } else {
8602: return 'F';
8603: }
8604: }
8605:
8606: # bre access to group portfolio for rgf priv in group, or mdg or vcg in course.
8607: if (($space=~/^(uploaded|editupload)$/) && ($dir[0] eq 'groups')
8608: && ($dir[2] eq 'portfolio') && ($priv eq 'bre')) {
8609: if (exists($env{'request.course.id'})) {
8610: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
8611: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
8612: if (($domain eq $cdom) && ($name eq $cnum)) {
8613: my $courseprivid=$env{'request.course.id'};
8614: $courseprivid=~s/\_/\//;
8615: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid
8616: .'/'.$dir[1]} =~/rgf\&([^\:]*)/) {
8617: return $1;
8618: } else {
8619: if ($env{'request.course.sec'}) {
8620: $courseprivid.='/'.$env{'request.course.sec'};
8621: }
8622: if ($env{'user.priv.'.$env{'request.role'}.'./'.
8623: $courseprivid} =~/(mdg|vcg)\&([^\:]*)/) {
8624: return $2;
8625: }
8626: }
8627: }
8628: }
8629: }
8630:
8631: # Free bre to public access
8632:
8633: if ($priv eq 'bre') {
8634: my $copyright;
8635: unless ($uri =~ /ext\.tool/) {
8636: $copyright=&metadata($uri,'copyright');
8637: }
8638: if (($copyright eq 'public') && (!$env{'request.course.id'})) {
8639: return 'F';
8640: }
8641: if ($copyright eq 'priv') {
8642: $uri=~/([^\/]+)\/([^\/]+)\//;
8643: unless (($env{'user.name'} eq $2) && ($env{'user.domain'} eq $1)) {
8644: return '';
8645: }
8646: }
8647: if ($copyright eq 'domain') {
8648: $uri=~/([^\/]+)\/([^\/]+)\//;
8649: unless (($env{'user.domain'} eq $1) ||
8650: ($env{'course.'.$env{'request.course.id'}.'.domain'} eq $1)) {
8651: return '';
8652: }
8653: }
8654: if ($env{'request.role'}=~ /li\.\//) {
8655: # Library role, so allow browsing of resources in this domain.
8656: return 'F';
8657: }
8658: if ($copyright eq 'custom') {
8659: unless (&customaccess($priv,$uri)) { return ''; }
8660: }
8661: }
8662: # Domain coordinator is trying to create a course
8663: if (($priv eq 'ccc') && ($env{'request.role'} =~ /^dc\./)) {
8664: # uri is the requested domain in this case.
8665: # comparison to 'request.role.domain' shows if the user has selected
8666: # a role of dc for the domain in question.
8667: return 'F' if ($uri eq $env{'request.role.domain'});
8668: }
8669:
8670: my $thisallowed='';
8671: my $statecond=0;
8672: my $courseprivid='';
8673:
8674: my $ownaccess;
8675: # Community Coordinator or Assistant Co-author browsing resource space.
8676: if (($priv eq 'bro') && ($env{'user.author'})) {
8677: if ($uri eq '') {
8678: $ownaccess = 1;
8679: } else {
8680: if (($env{'user.domain'} ne '') && ($env{'user.name'} ne '')) {
8681: my $udom = $env{'user.domain'};
8682: my $uname = $env{'user.name'};
8683: if ($uri =~ m{^\Q$udom\E/?$}) {
8684: $ownaccess = 1;
8685: } elsif ($uri =~ m{^\Q$udom\E/\Q$uname\E/?}) {
8686: unless ($uri =~ m{\.\./}) {
8687: $ownaccess = 1;
8688: }
8689: } elsif (($udom ne 'public') && ($uname ne 'public')) {
8690: my $now = time;
8691: if ($uri =~ m{^([^/]+)/?$}) {
8692: my $adom = $1;
8693: foreach my $key (keys(%env)) {
8694: if ($key =~ m{^user\.role\.(ca|aa)/\Q$adom\E}) {
8695: my ($start,$end) = split(/\./,$env{$key});
8696: if (($now >= $start) && (!$end || $end > $now)) {
8697: $ownaccess = 1;
8698: last;
8699: }
8700: }
8701: }
8702: } elsif ($uri =~ m{^([^/]+)/([^/]+)/?}) {
8703: my $adom = $1;
8704: my $aname = $2;
8705: foreach my $role ('ca','aa') {
8706: if ($env{"user.role.$role./$adom/$aname"}) {
8707: my ($start,$end) =
8708: split(/\./,$env{"user.role.$role./$adom/$aname"});
8709: if (($now >= $start) && (!$end || $end > $now)) {
8710: $ownaccess = 1;
8711: last;
8712: }
8713: }
8714: }
8715: }
8716: }
8717: }
8718: }
8719: }
8720:
8721: # Course
8722:
8723: if ($env{'user.priv.'.$env{'request.role'}.'./'}=~/\Q$priv\E\&([^\:]*)/) {
8724: unless (($priv eq 'bro') && (!$ownaccess)) {
8725: $thisallowed.=$1;
8726: }
8727: }
8728:
8729: # Domain
8730:
8731: if ($env{'user.priv.'.$env{'request.role'}.'./'.(split(/\//,$uri))[0].'/'}
8732: =~/\Q$priv\E\&([^\:]*)/) {
8733: unless (($priv eq 'bro') && (!$ownaccess)) {
8734: $thisallowed.=$1;
8735: }
8736: }
8737:
8738: # User who is not author or co-author might still be able to edit
8739: # resource of an author in the domain (e.g., if Domain Coordinator).
8740: if (($priv eq 'eco') && ($thisallowed eq '') && ($env{'request.course.id'}) &&
8741: (&allowed('mdc',$env{'request.course.id'}))) {
8742: if ($env{"user.priv.cm./$uri/"}=~/\Q$priv\E\&([^\:]*)/) {
8743: $thisallowed.=$1;
8744: }
8745: }
8746:
8747: # Course: uri itself is a course
8748: my $courseuri=$uri;
8749: $courseuri=~s/\_(\d)/\/$1/;
8750: $courseuri=~s/^([^\/])/\/$1/;
8751:
8752: if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseuri}
8753: =~/\Q$priv\E\&([^\:]*)/) {
8754: if ($priv eq 'mip') {
8755: my $rem = $1;
8756: if (($uri ne '') && ($env{'request.course.id'} eq $uri) &&
8757: ($env{'course.'.$env{'request.course.id'}.'.internal.courseowner'} eq $env{'user.name'}.':'.$env{'user.domain'})) {
8758: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
8759: if ($cdom ne '') {
8760: my %passwdconf = &get_passwdconf($cdom);
8761: if (ref($passwdconf{'crsownerchg'}) eq 'HASH') {
8762: if (ref($passwdconf{'crsownerchg'}{'by'}) eq 'ARRAY') {
8763: if (@{$passwdconf{'crsownerchg'}{'by'}}) {
8764: my @inststatuses = split(':',$env{'environment.inststatus'});
8765: unless (@inststatuses) {
8766: @inststatuses = ('default');
8767: }
8768: foreach my $status (@inststatuses) {
8769: if (grep(/^\Q$status\E$/,@{$passwdconf{'crsownerchg'}{'by'}})) {
8770: $thisallowed.=$rem;
8771: }
8772: }
8773: }
8774: }
8775: }
8776: }
8777: }
8778: } else {
8779: unless (($priv eq 'bro') && (!$ownaccess)) {
8780: $thisallowed.=$1;
8781: }
8782: }
8783: }
8784:
8785: # URI is an uploaded document for this course, default permissions don't matter
8786: # not allowing 'edit' access (editupload) to uploaded course docs
8787: if (($priv eq 'bre') && ($uri=~m|^uploaded/|)) {
8788: $thisallowed='';
8789: my ($match)=&is_on_map($uri);
8790: if ($match) {
8791: if ($env{'user.priv.'.$env{'request.role'}.'./'}
8792: =~/\Q$priv\E\&([^\:]*)/) {
8793: my $value = $1;
8794: my $deeplinkblock;
8795: unless ($nodeeplinkcheck) {
8796: $deeplinkblock = &deeplink_check($priv,$symb,$uri);
8797: }
8798: if ($deeplinkblock) {
8799: $thisallowed='D';
8800: } elsif ($noblockcheck) {
8801: $thisallowed.=$value;
8802: } else {
8803: my @blockers = &has_comm_blocking($priv,$symb,$uri,$ignorecache);
8804: if (@blockers > 0) {
8805: $thisallowed = 'B';
8806: } else {
8807: $thisallowed.=$value;
8808: }
8809: }
8810: }
8811: } else {
8812: my $refuri = $env{'httpref.'.$orguri} || $env{'httpref.'.$ver_orguri};
8813: if ($refuri) {
8814: if ($refuri =~ m|^/adm/|) {
8815: $thisallowed='F';
8816: } else {
8817: $refuri=&declutter($refuri);
8818: my ($match) = &is_on_map($refuri);
8819: if ($match) {
8820: my $deeplinkblock;
8821: unless ($nodeeplinkcheck) {
8822: $deeplinkblock = &deeplink_check($priv,$symb,$refuri);
8823: }
8824: if ($deeplinkblock) {
8825: $thisallowed='D';
8826: } elsif ($noblockcheck) {
8827: $thisallowed='F';
8828: } else {
8829: my @blockers = &has_comm_blocking($priv,'',$refuri,'',1);
8830: if (@blockers > 0) {
8831: $thisallowed = 'B';
8832: } else {
8833: $thisallowed='F';
8834: }
8835: }
8836: }
8837: }
8838: }
8839: }
8840: }
8841:
8842: if ($priv eq 'bre'
8843: && $thisallowed ne 'F'
8844: && $thisallowed ne '2'
8845: && &is_portfolio_url($uri)) {
8846: $thisallowed = &portfolio_access($uri,$clientip);
8847: }
8848:
8849: # Full access at system, domain or course-wide level? Exit.
8850: if ($thisallowed=~/F/) {
8851: return 'F';
8852: }
8853:
8854: # If this is generating or modifying users, exit with special codes
8855:
8856: if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:cca:caa:vca:vaa:'=~/\:\Q$priv\E\:/) {
8857: if (($priv eq 'cca') || ($priv eq 'caa')) {
8858: my ($audom,$auname)=split('/',$uri);
8859: # no author name given, so this just checks on the general right to make a co-author in this domain
8860: unless ($auname) { return $thisallowed; }
8861: # an author name is given, so we are about to actually make a co-author for a certain account
8862: if (($auname ne $env{'user.name'} && $env{'request.role'} !~ /^dc\./) ||
8863: (($audom ne $env{'user.domain'} && $env{'request.role'} !~ /^dc\./) &&
8864: ($audom ne $env{'request.role.domain'}))) { return ''; }
8865: } elsif (($priv eq 'vca') || ($priv eq 'vaa')) {
8866: my ($audom,$auname)=split('/',$uri);
8867: unless ($auname) { return $thisallowed; }
8868: unless (($env{'request.role'} eq "dc./$audom") ||
8869: ($env{'request.role'} eq "ca./$uri")) {
8870: return '';
8871: }
8872: }
8873: return $thisallowed;
8874: }
8875: #
8876: # Gathered so far: system, domain and course wide privileges
8877: #
8878: # Course: See if uri or referer is an individual resource that is part of
8879: # the course
8880:
8881: if ($env{'request.course.id'}) {
8882:
8883: if ($priv eq 'bre') {
8884: if (&is_coursetool_logo($uri)) {
8885: return 'F';
8886: }
8887: }
8888:
8889: # If this is modifying password (internal auth) domains must match for user and user's role.
8890:
8891: if ($priv eq 'mip') {
8892: if ($env{'user.domain'} eq $env{'request.role.domain'}) {
8893: return $thisallowed;
8894: } else {
8895: return '';
8896: }
8897: }
8898:
8899: $courseprivid=$env{'request.course.id'};
8900: if ($env{'request.course.sec'}) {
8901: $courseprivid.='/'.$env{'request.course.sec'};
8902: }
8903: $courseprivid=~s/\_/\//;
8904: my $checkreferer=1;
8905: my ($match,$cond)=&is_on_map($uri);
8906: if ($match) {
8907: $statecond=$cond;
8908: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
8909: =~/\Q$priv\E\&([^\:]*)/) {
8910: my $value = $1;
8911: if ($priv eq 'bre') {
8912: my $deeplinkblock;
8913: unless ($nodeeplinkcheck) {
8914: $deeplinkblock = &deeplink_check($priv,$symb,$uri);
8915: }
8916: if ($deeplinkblock) {
8917: $thisallowed = 'D';
8918: } elsif ($noblockcheck) {
8919: $thisallowed.=$value;
8920: } else {
8921: my @blockers = &has_comm_blocking($priv,$symb,$uri,$ignorecache);
8922: if (@blockers > 0) {
8923: $thisallowed = 'B';
8924: } else {
8925: $thisallowed.=$value;
8926: }
8927: }
8928: } else {
8929: $thisallowed.=$value;
8930: }
8931: $checkreferer=0;
8932: }
8933: }
8934:
8935: if ($checkreferer) {
8936: my $refuri=$env{'httpref.'.$orguri};
8937: unless ($refuri) {
8938: foreach my $key (keys(%env)) {
8939: if ($key=~/^httpref\..*\*/) {
8940: my $pattern=$key;
8941: $pattern=~s/^httpref\.\/res\///;
8942: $pattern=~s/\*/\[\^\/\]\+/g;
8943: $pattern=~s/\//\\\//g;
8944: if ($orguri=~/$pattern/) {
8945: $refuri=$env{$key};
8946: }
8947: }
8948: }
8949: }
8950:
8951: if ($refuri) {
8952: $refuri=&declutter($refuri);
8953: my ($match,$cond)=&is_on_map($refuri);
8954: if ($match) {
8955: my $refstatecond=$cond;
8956: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
8957: =~/\Q$priv\E\&([^\:]*)/) {
8958: my $value = $1;
8959: if ($priv eq 'bre') {
8960: my $deeplinkblock;
8961: unless ($nodeeplinkcheck) {
8962: $deeplinkblock = &deeplink_check($priv,$symb,$refuri);
8963: }
8964: if ($deeplinkblock) {
8965: $thisallowed = 'D';
8966: } elsif ($noblockcheck) {
8967: $thisallowed.=$value;
8968: } else {
8969: my @blockers = &has_comm_blocking($priv,'',$refuri,'',1);
8970: if (@blockers > 0) {
8971: $thisallowed = 'B';
8972: } else {
8973: $thisallowed.=$value;
8974: }
8975: }
8976: } else {
8977: $thisallowed.=$value;
8978: }
8979: $uri=$refuri;
8980: $statecond=$refstatecond;
8981: }
8982: }
8983: }
8984: }
8985: }
8986:
8987: #
8988: # Gathered now: all privileges that could apply, and condition number
8989: #
8990: #
8991: # Full or no access?
8992: #
8993:
8994: if ($thisallowed=~/F/) {
8995: return 'F';
8996: }
8997:
8998: unless ($thisallowed) {
8999: return '';
9000: }
9001:
9002: # Restrictions exist, deal with them
9003: #
9004: # C:according to course preferences
9005: # R:according to resource settings
9006: # L:unless locked
9007: # X:according to user session state
9008: #
9009:
9010: # Possibly locked functionality, check all courses
9011: # In roles.tab, L (unless locked) available for bre, pch, plc, pac and sma.
9012: # Locks might take effect only after 10 minutes cache expiration for other
9013: # courses, and 2 minutes for current course, in which user has st or ta role
9014: # which is neither expired nor a future role (unless current course).
9015:
9016: my ($needlockcheck,$now,$crsonly);
9017: if ($thisallowed=~/L/) {
9018: $now = time;
9019: if ($priv eq 'bre') {
9020: if ($uri ne '') {
9021: if ($orguri =~ m{^/+res/}) {
9022: if ($uri =~ m{^lib/templates/}) {
9023: if ($env{'request.course.id'}) {
9024: $crsonly = 1;
9025: $needlockcheck = 1;
9026: }
9027: } else {
9028: $needlockcheck = 1;
9029: }
9030: } elsif ($env{'request.course.id'}) {
9031: my ($crsdom,$crsnum) = split('_',$env{'request.course.id'});
9032: if (($uri =~ m{^(adm|uploaded|public)/$crsdom/$crsnum/}) ||
9033: ($uri =~ m{^adm/$match_domain/$match_username/\d+/(smppg|bulletinboard)$})) {
9034: $crsonly = 1;
9035: }
9036: $needlockcheck = 1;
9037: }
9038: }
9039: } elsif (($priv eq 'pch') || ($priv eq 'plc') || ($priv eq 'pac') || ($priv eq 'sma')) {
9040: $needlockcheck = 1;
9041: }
9042: }
9043: if ($needlockcheck) {
9044: foreach my $envkey (keys(%env)) {
9045: if ($envkey=~/^user\.role\.(st|ta)\.([^\.]*)/) {
9046: my $courseid=$2;
9047: my $roleid=$1.'.'.$2;
9048: $courseid=~s/^\///;
9049: unless ($env{'request.role'} eq $roleid) {
9050: my ($start,$end) = split(/\./,$env{$envkey});
9051: next unless (($now >= $start) && (!$end || $end > $now));
9052: }
9053: my $expiretime=600;
9054: if ($env{'request.role'} eq $roleid) {
9055: $expiretime=120;
9056: }
9057: my ($cdom,$cnum,$csec)=split(/\//,$courseid);
9058: my $prefix='course.'.$cdom.'_'.$cnum.'.';
9059: if ((time-$env{$prefix.'last_cache'})>$expiretime) {
9060: &coursedescription($courseid,{'freshen_cache' => 1});
9061: }
9062: if (($env{$prefix.'res.'.$uri.'.lock.sections'}=~/\,\Q$csec\E\,/)
9063: || ($env{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) {
9064: if ($env{$prefix.'res.'.$uri.'.lock.expire'}>time) {
9065: &log($env{'user.domain'},$env{'user.name'},
9066: $env{'user.home'},
9067: 'Locked by res: '.$priv.' for '.$uri.' due to '.
9068: $cdom.'/'.$cnum.'/'.$csec.' expire '.
9069: $env{$prefix.'priv.'.$priv.'.lock.expire'});
9070: return '';
9071: }
9072: }
9073: if (($env{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,\Q$csec\E\,/)
9074: || ($env{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) {
9075: if ($env{$prefix.'priv.'.$priv.'.lock.expire'}>time) {
9076: &log($env{'user.domain'},$env{'user.name'},
9077: $env{'user.home'},
9078: 'Locked by priv: '.$priv.' for '.$uri.' due to '.
9079: $cdom.'/'.$cnum.'/'.$csec.' expire '.
9080: $env{$prefix.'priv.'.$priv.'.lock.expire'});
9081: return '';
9082: }
9083: }
9084: }
9085: }
9086: }
9087:
9088: #
9089: # Rest of the restrictions depend on selected course
9090: #
9091:
9092: unless ($env{'request.course.id'}) {
9093: if ($thisallowed eq 'A') {
9094: return 'A';
9095: } elsif ($thisallowed eq 'B') {
9096: return 'B';
9097: } else {
9098: return '1';
9099: }
9100: }
9101:
9102: #
9103: # Now user is definitely in a course
9104: #
9105:
9106:
9107: # Course preferences
9108:
9109: if ($thisallowed=~/C/) {
9110: my $rolecode=(split(/\./,$env{'request.role'}))[0];
9111: my $unamedom=$env{'user.name'}.':'.$env{'user.domain'};
9112: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.roles.denied'}
9113: =~/\Q$rolecode\E/) {
9114: if (($priv ne 'pch') && ($priv ne 'plc') && ($priv ne 'pac')) {
9115: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
9116: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '.
9117: $env{'request.course.id'});
9118: }
9119: return '';
9120: }
9121:
9122: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.users.denied'}
9123: =~/\Q$unamedom\E/) {
9124: if (($priv ne 'pch') && ($priv ne 'plc') && ($priv ne 'pac')) {
9125: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.
9126: 'Denied by user: '.$priv.' for '.$uri.' as '.$unamedom.' in '.
9127: $env{'request.course.id'});
9128: }
9129: return '';
9130: }
9131: }
9132:
9133: # Resource preferences
9134:
9135: if ($thisallowed=~/R/) {
9136: my $rolecode=(split(/\./,$env{'request.role'}))[0];
9137: if (&metadata($uri,'roledeny')=~/\Q$rolecode\E/) {
9138: if (($priv ne 'pch') && ($priv ne 'plc')) {
9139: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
9140: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode);
9141: }
9142: return '';
9143: }
9144: }
9145:
9146: # Restricted for deeplinked session?
9147:
9148: if ($env{'request.deeplink.login'}) {
9149: if ($env{'acc.deeplinkout'} && !$nodeeplinkout) {
9150: if (!$symb) { $symb=&symbread($uri,1); }
9151: if (($symb) && ($env{'acc.deeplinkout'}=~/\&\Q$symb\E\&/)) {
9152: return '';
9153: }
9154: }
9155: }
9156:
9157: # Restricted by state or randomout?
9158:
9159: if ($thisallowed=~/X/) {
9160: if ($env{'acc.randomout'}) {
9161: if (!$symb) { $symb=&symbread($uri,1); }
9162: if (($symb) && ($env{'acc.randomout'}=~/\&\Q$symb\E\&/)) {
9163: return '';
9164: }
9165: }
9166: if (&condval($statecond)) {
9167: return '2';
9168: } else {
9169: return '';
9170: }
9171: }
9172:
9173: if ($thisallowed eq 'A') {
9174: return 'A';
9175: } elsif ($thisallowed eq 'B') {
9176: return 'B';
9177: } elsif ($thisallowed eq 'D') {
9178: return 'D';
9179: }
9180: return 'F';
9181: }
9182:
9183: # ------------------------------------------- Check construction space access
9184:
9185: sub constructaccess {
9186: my ($url,$setpriv)=@_;
9187:
9188: # We do not allow editing of previous versions of files
9189: if ($url=~/\.(\d+)\.(\w+)$/) { return ''; }
9190:
9191: # Get username and domain from URL
9192: my ($ownername,$ownerdomain,$ownerhome);
9193:
9194: ($ownerdomain,$ownername) =
9195: ($url=~ m{^(?:\Q$perlvar{'lonDocRoot'}\E|)(?:/daxepage|/daxeopen)?/priv/($match_domain)/($match_username)(?:/|$)});
9196:
9197: # The URL does not really point to any authorspace, forget it
9198: unless (($ownername) && ($ownerdomain)) { return ''; }
9199:
9200: # Now we need to see if the user has access to the authorspace of
9201: # $ownername at $ownerdomain
9202:
9203: if (($ownername eq $env{'user.name'}) && ($ownerdomain eq $env{'user.domain'})) {
9204: # Real author for this?
9205: $ownerhome = $env{'user.home'};
9206: if (exists($env{'user.priv.au./'.$ownerdomain.'/./'})) {
9207: return ($ownername,$ownerdomain,$ownerhome);
9208: }
9209: } elsif (&is_course($ownerdomain,$ownername)) {
9210: # Course Authoring Space?
9211: if ($env{'request.course.id'}) {
9212: if (($ownername eq $env{'course.'.$env{'request.course.id'}.'.num'}) &&
9213: ($ownerdomain eq $env{'course.'.$env{'request.course.id'}.'.domain'})) {
9214: if (&allowed('mdc',$env{'request.course.id'})) {
9215: $ownerhome = $env{'course.'.$env{'request.course.id'}.'.home'};
9216: return ($ownername,$ownerdomain,$ownerhome);
9217: }
9218: }
9219: }
9220: return '';
9221: } else {
9222: # Co-author for this?
9223: if (exists($env{'user.priv.ca./'.$ownerdomain.'/'.$ownername.'./'}) ||
9224: exists($env{'user.priv.aa./'.$ownerdomain.'/'.$ownername.'./'}) ) {
9225: $ownerhome = &homeserver($ownername,$ownerdomain);
9226: return ($ownername,$ownerdomain,$ownerhome);
9227: }
9228: }
9229:
9230: # We don't have any access right now. If we are not possibly going to do anything about this,
9231: # we might as well leave
9232: unless ($setpriv) { return ''; }
9233:
9234: # Backdoor access?
9235: my $allowed=&allowed('eco',$ownerdomain);
9236: # Nope
9237: unless ($allowed) { return ''; }
9238: # Looks like we may have access, but could be locked by the owner of the construction space
9239: if ($allowed eq 'U') {
9240: my %blocked=&get('environment',['domcoord.author'],
9241: $ownerdomain,$ownername);
9242: # Is blocked by owner
9243: if ($blocked{'domcoord.author'} eq 'blocked') { return ''; }
9244: }
9245: if (($allowed eq 'F') || ($allowed eq 'U')) {
9246: # Grant temporary access
9247: my $then=$env{'user.login.time'};
9248: my $update=$env{'user.update.time'};
9249: if (!$update) { $update = $then; }
9250: my $refresh=$env{'user.refresh.time'};
9251: if (!$refresh) { $refresh = $update; }
9252: my $now = time;
9253: &check_adhoc_privs($ownerdomain,$ownername,$update,$refresh,
9254: $now,'ca','constructaccess');
9255: $ownerhome = &homeserver($ownername,$ownerdomain);
9256: return($ownername,$ownerdomain,$ownerhome);
9257: }
9258: # No business here
9259: return '';
9260: }
9261:
9262: # ----------------------------------------------------------- Content Blocking
9263:
9264: {
9265: # Caches for faster Course Contents display where content blocking
9266: # is in operation (i.e., interval param set) for timed quiz.
9267: #
9268: # User for whom data are being temporarily cached.
9269: my $cacheduser='';
9270: # Course for which data are being temporarily cached.
9271: my $cachedcid='';
9272: # Cached blockers for this user (a hash of blocking items).
9273: my %cachedblockers=();
9274: # When the data were last cached.
9275: my $cachedlast='';
9276:
9277: sub load_all_blockers {
9278: my ($uname,$udom)=@_;
9279: if (($uname ne '') && ($udom ne '')) {
9280: if (($cacheduser eq $uname.':'.$udom) &&
9281: ($cachedcid eq $env{'request.course.id'}) &&
9282: (abs($cachedlast-time)<5)) {
9283: return;
9284: }
9285: }
9286: $cachedlast=time;
9287: $cacheduser=$uname.':'.$udom;
9288: $cachedcid=$env{'request.course.id'};
9289: %cachedblockers = &get_commblock_resources();
9290: return;
9291: }
9292:
9293: sub get_comm_blocks {
9294: my ($cdom,$cnum) = @_;
9295: if ($cdom eq '' || $cnum eq '') {
9296: return unless ($env{'request.course.id'});
9297: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
9298: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
9299: }
9300: my %commblocks;
9301: my $hashid=$cdom.'_'.$cnum;
9302: my ($blocksref,$cached)=&is_cached_new('comm_block',$hashid);
9303: if ((defined($cached)) && (ref($blocksref) eq 'HASH')) {
9304: %commblocks = %{$blocksref};
9305: } else {
9306: %commblocks = &dump('comm_block',$cdom,$cnum);
9307: my $cachetime = 600;
9308: &do_cache_new('comm_block',$hashid,\%commblocks,$cachetime);
9309: }
9310: return %commblocks;
9311: }
9312:
9313: sub get_commblock_resources {
9314: my ($blocks) = @_;
9315: my %blockers = ();
9316: return %blockers unless ($env{'request.course.id'});
9317: my $courseurl = &courseid_to_courseurl($env{'request.course.id'});
9318: if ($env{'request.course.sec'}) {
9319: $courseurl .= '/'.$env{'request.course.sec'};
9320: }
9321: return %blockers if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseurl} =~/evb\&([^\:]*)/);
9322: my %commblocks;
9323: if (ref($blocks) eq 'HASH') {
9324: %commblocks = %{$blocks};
9325: } else {
9326: %commblocks = &get_comm_blocks();
9327: }
9328: return %blockers unless (keys(%commblocks) > 0);
9329: my $navmap = Apache::lonnavmaps::navmap->new();
9330: return %blockers unless (ref($navmap));
9331: my $now = time;
9332: foreach my $block (keys(%commblocks)) {
9333: if ($block =~ /^(\d+)____(\d+)$/) {
9334: my ($start,$end) = ($1,$2);
9335: if ($start <= $now && $end >= $now) {
9336: if (ref($commblocks{$block}{'blocks'}) eq 'HASH') {
9337: if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') {
9338: if (ref($commblocks{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') {
9339: if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'maps'}})) {
9340: $blockers{$block}{maps} = $commblocks{$block}{'blocks'}{'docs'}{'maps'};
9341: }
9342: }
9343: if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') {
9344: if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'resources'}})) {
9345: $blockers{$block}{'resources'} = $commblocks{$block}{'blocks'}{'docs'}{'resources'};
9346: }
9347: }
9348: }
9349: }
9350: }
9351: } elsif ($block =~ /^firstaccess____(.+)$/) {
9352: my $item = $1;
9353: if (ref($commblocks{$block}{'blocks'}) eq 'HASH') {
9354: if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') {
9355: my (@interval,$mapname);
9356: my $type = 'map';
9357: if ($item eq 'course') {
9358: $type = 'course';
9359: @interval=&EXT("resource.0.interval");
9360: } else {
9361: if ($item =~ /___\d+___/) {
9362: $type = 'resource';
9363: @interval=&EXT("resource.0.interval",$item);
9364: } else {
9365: $mapname = &deversion($item);
9366: if (ref($navmap)) {
9367: my $timelimit = $navmap->get_mapparam(undef,$mapname,'0.interval');
9368: @interval = ($timelimit,'map');
9369: }
9370: }
9371: }
9372: if ($interval[0] =~ /^(\d+)/) {
9373: my $timelimit = $1;
9374: my $first_access;
9375: if ($type eq 'resource') {
9376: $first_access=&get_first_access($interval[1],$item);
9377: } elsif ($type eq 'map') {
9378: $first_access=&get_first_access($interval[1],undef,$item);
9379: } else {
9380: $first_access=&get_first_access($interval[1]);
9381: }
9382: if ($first_access) {
9383: my $timesup = $first_access+$timelimit;
9384: if ($timesup > $now) {
9385: my $activeblock;
9386: if ($type eq 'resource') {
9387: if (ref($navmap)) {
9388: my $res = $navmap->getBySymb($item);
9389: if ($res->answerable()) {
9390: $activeblock = 1;
9391: }
9392: }
9393: } elsif ($type eq 'map') {
9394: my $mapsymb = &symbread($mapname,1);
9395: if (($mapsymb) && (ref($navmap))) {
9396: my $mapres = $navmap->getBySymb($mapsymb);
9397: if (ref($mapres)) {
9398: my $first = $mapres->map_start();
9399: my $finish = $mapres->map_finish();
9400: my $it = $navmap->getIterator($first,$finish,undef,0,0);
9401: if (ref($it)) {
9402: my $res;
9403: while ($res = $it->next(undef,1)) {
9404: next unless (ref($res));
9405: my $symb = $res->symb();
9406: next if (($symb eq $mapsymb) || ($symb eq ''));
9407: @interval=&EXT("resource.0.interval",$symb);
9408: if ($interval[1] eq 'map') {
9409: if ($res->answerable()) {
9410: $activeblock = 1;
9411: last;
9412: }
9413: }
9414: }
9415: }
9416: }
9417: }
9418: }
9419: if ($activeblock) {
9420: if (ref($commblocks{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') {
9421: if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'maps'}})) {
9422: $blockers{$block}{'maps'} = $commblocks{$block}{'blocks'}{'docs'}{'maps'};
9423: }
9424: }
9425: if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') {
9426: if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'resources'}})) {
9427: $blockers{$block}{'resources'} = $commblocks{$block}{'blocks'}{'docs'}{'resources'};
9428: }
9429: }
9430: }
9431: }
9432: }
9433: }
9434: }
9435: }
9436: }
9437: }
9438: return %blockers;
9439: }
9440:
9441: sub has_comm_blocking {
9442: my ($priv,$symb,$uri,$ignoresymbdb,$noenccheck,$blocked,$blocks) = @_;
9443: my @blockers;
9444: return unless ($env{'request.course.id'});
9445: return unless ($priv eq 'bre');
9446: return if ($env{'request.state'} eq 'construct');
9447: my $courseurl = &courseid_to_courseurl($env{'request.course.id'});
9448: if ($env{'request.course.sec'}) {
9449: $courseurl .= '/'.$env{'request.course.sec'};
9450: }
9451: return if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseurl} =~/evb\&([^\:]*)/);
9452: my %blockinfo;
9453: if (ref($blocks) eq 'HASH') {
9454: %blockinfo = &get_commblock_resources($blocks);
9455: } else {
9456: &load_all_blockers($env{'user.name'},$env{'user.domain'});
9457: %blockinfo = %cachedblockers;
9458: }
9459: return unless (keys(%blockinfo) > 0);
9460: my (%possibles,@symbs);
9461: if (!$symb) {
9462: $symb = &symbread($uri,1,1,1,\%possibles,$ignoresymbdb,$noenccheck);
9463: }
9464: if ($symb) {
9465: @symbs = ($symb);
9466: } elsif (keys(%possibles)) {
9467: @symbs = keys(%possibles);
9468: }
9469: my $noblock;
9470: foreach my $symb (@symbs) {
9471: last if ($noblock);
9472: my ($map,$resid,$resurl)=&decode_symb($symb);
9473: foreach my $block (keys(%blockinfo)) {
9474: if ($block =~ /^firstaccess____(.+)$/) {
9475: my $item = $1;
9476: unless ($blocked) {
9477: if (($item eq $map) || ($item eq $symb)) {
9478: $noblock = 1;
9479: last;
9480: }
9481: }
9482: }
9483: if (ref($blockinfo{$block}) eq 'HASH') {
9484: if (ref($blockinfo{$block}{'resources'}) eq 'HASH') {
9485: if ($blockinfo{$block}{'resources'}{$symb}) {
9486: unless (grep(/^\Q$block\E$/,@blockers)) {
9487: push(@blockers,$block);
9488: }
9489: }
9490: }
9491: if (ref($blockinfo{$block}{'maps'}) eq 'HASH') {
9492: if ($blockinfo{$block}{'maps'}{$map}) {
9493: unless (grep(/^\Q$block\E$/,@blockers)) {
9494: push(@blockers,$block);
9495: }
9496: }
9497: }
9498: }
9499: }
9500: }
9501: unless ($noblock) {
9502: return @blockers;
9503: }
9504: return;
9505: }
9506: }
9507:
9508: sub deeplink_check {
9509: my ($priv,$symb,$uri) = @_;
9510: return unless ($env{'request.course.id'});
9511: return unless ($priv eq 'bre');
9512: return if ($env{'request.state'} eq 'construct');
9513: return if ($env{'request.role.adv'});
9514: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
9515: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
9516: my (%possibles,@symbs);
9517: if (!$symb) {
9518: $symb = &symbread($uri,1,1,1,\%possibles);
9519: }
9520: if ($symb) {
9521: @symbs = ($symb);
9522: } elsif (keys(%possibles)) {
9523: @symbs = keys(%possibles);
9524: }
9525:
9526: my ($deeplink_symb,$allow);
9527: if ($env{'request.deeplink.login'}) {
9528: $deeplink_symb = &Apache::loncommon::deeplink_login_symb($cnum,$cdom);
9529: }
9530: foreach my $symb (@symbs) {
9531: last if ($allow);
9532: my $deeplink = &EXT("resource.0.deeplink",$symb);
9533: if ($deeplink eq '') {
9534: $allow = 1;
9535: } else {
9536: my ($state,$others,$listed,$scope,$protect) = split(/,/,$deeplink);
9537: if ($state ne 'only') {
9538: $allow = 1;
9539: } else {
9540: my $check_deeplink_entry;
9541: if ($protect ne 'none') {
9542: my ($acctype,$item) = split(/:/,$protect);
9543: if (($acctype eq 'ltic') && ($env{'user.linkprotector'})) {
9544: if (grep(/^\Q$item\Ec$/,split(/,/,$env{'user.linkprotector'}))) {
9545: $check_deeplink_entry = 1
9546: }
9547: } elsif (($acctype eq 'ltid') && ($env{'user.linkprotector'})) {
9548: if (grep(/^\Q$item\Ed$/,split(/,/,$env{'user.linkprotector'}))) {
9549: $check_deeplink_entry = 1;
9550: }
9551: } elsif (($acctype eq 'key') && ($env{'user.deeplinkkey'})) {
9552: if (grep(/^\Q$item\E$/,split(/,/,$env{'user.deeplinkkey'}))) {
9553: $check_deeplink_entry = 1;
9554: }
9555: }
9556: }
9557: if (($protect eq 'none') || ($check_deeplink_entry)) {
9558: if ($scope eq 'res') {
9559: if ($symb eq $deeplink_symb) {
9560: $allow = 1;
9561: }
9562: } elsif (($scope eq 'map') || ($scope eq 'rec')) {
9563: my ($map_from_symb,$map_from_login);
9564: $map_from_symb = &deversion((&decode_symb($symb))[0]);
9565: if ($deeplink_symb =~ /\.(page|sequence)$/) {
9566: $map_from_login = &deversion((&decode_symb($deeplink_symb))[2]);
9567: } else {
9568: $map_from_login = &deversion((&decode_symb($deeplink_symb))[0]);
9569: }
9570: if (($map_from_symb) && ($map_from_login)) {
9571: if ($map_from_symb eq $map_from_login) {
9572: $allow = 1;
9573: } elsif ($scope eq 'rec') {
9574: my @recurseup = &get_map_hierarchy($map_from_symb,$env{'request.course.id'});
9575: if (grep(/^\Q$map_from_login\E$/,@recurseup)) {
9576: $allow = 1;
9577: }
9578: }
9579: }
9580: }
9581: }
9582: }
9583: }
9584: }
9585: return if ($allow);
9586: return 1;
9587: }
9588:
9589: # -------------------------------- Deversion and split uri into path an filename
9590:
9591: #
9592: # Removes the version from a URI and
9593: # splits it in to its filename and path to the filename.
9594: # Seems like File::Basename could have done this more clearly.
9595: # Parameters:
9596: # $uri - input URI
9597: # Returns:
9598: # Two element list consisting of
9599: # $pathname - the URI up to and excluding the trailing /
9600: # $filename - The part of the URI following the last /
9601: # NOTE:
9602: # Another realization of this is simply:
9603: # use File::Basename;
9604: # ...
9605: # $uri = shift;
9606: # $filename = basename($uri);
9607: # $path = dirname($uri);
9608: # return ($filename, $path);
9609: #
9610: # The implementation below is probably faster however.
9611: #
9612: sub split_uri_for_cond {
9613: my $uri=&deversion(&declutter(shift));
9614: my @uriparts=split(/\//,$uri);
9615: my $filename=pop(@uriparts);
9616: my $pathname=join('/',@uriparts);
9617: return ($pathname,$filename);
9618: }
9619: # --------------------------------------------------- Is a resource on the map?
9620:
9621: sub is_on_map {
9622: my ($pathname,$filename) = &split_uri_for_cond(shift);
9623: #Trying to find the conditional for the file
9624: my $match=($env{'acc.res.'.$env{'request.course.id'}.'.'.$pathname}=~
9625: /\&\Q$filename\E\:([\d\|]+)\&/);
9626: if ($match) {
9627: return (1,$1);
9628: } else {
9629: return (0,0);
9630: }
9631: }
9632:
9633: # --------------------------------------------------------- Get symb from alias
9634:
9635: sub get_symb_from_alias {
9636: my $symb=shift;
9637: my ($map,$resid,$url)=&decode_symb($symb);
9638: # Already is a symb
9639: if ($url) { return $symb; }
9640: # Must be an alias
9641: my $aliassymb='';
9642: my %bighash;
9643: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
9644: &GDBM_READER(),0640)) {
9645: my $rid=$bighash{'mapalias_'.$symb};
9646: if ($rid) {
9647: my ($mapid,$resid)=split(/\./,$rid);
9648: $aliassymb=&encode_symb($bighash{'map_id_'.$mapid},
9649: $resid,$bighash{'src_'.$rid});
9650: }
9651: untie %bighash;
9652: }
9653: return $aliassymb;
9654: }
9655:
9656: # ----------------------------------------------------------------- Define Role
9657:
9658: sub definerole {
9659: if (allowed('mcr','/')) {
9660: my ($rolename,$sysrole,$domrole,$courole,$uname,$udom)=@_;
9661: foreach my $role (split(':',$sysrole)) {
9662: my ($crole,$cqual)=split(/\&/,$role);
9663: if ($pr{'cr:s'}!~/\Q$crole\E/) { return "refused:s:$crole"; }
9664: if ($pr{'cr:s'}=~/\Q$crole\E\&/) {
9665: if ($pr{'cr:s'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
9666: return "refused:s:$crole&$cqual";
9667: }
9668: }
9669: }
9670: foreach my $role (split(':',$domrole)) {
9671: my ($crole,$cqual)=split(/\&/,$role);
9672: if ($pr{'cr:d'}!~/\Q$crole\E/) { return "refused:d:$crole"; }
9673: if ($pr{'cr:d'}=~/\Q$crole\E\&/) {
9674: if ($pr{'cr:d'}!~/\Q$crole\W\&\w*\Q$cqual\E/) {
9675: return "refused:d:$crole&$cqual";
9676: }
9677: }
9678: }
9679: foreach my $role (split(':',$courole)) {
9680: my ($crole,$cqual)=split(/\&/,$role);
9681: if ($pr{'cr:c'}!~/\Q$crole\E/) { return "refused:c:$crole"; }
9682: if ($pr{'cr:c'}=~/\Q$crole\E\&/) {
9683: if ($pr{'cr:c'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
9684: return "refused:c:$crole&$cqual";
9685: }
9686: }
9687: }
9688: my $uhome;
9689: if (($uname ne '') && ($udom ne '')) {
9690: $uhome = &homeserver($uname,$udom);
9691: return $uhome if ($uhome eq 'no_host');
9692: } else {
9693: $uname = $env{'user.name'};
9694: $udom = $env{'user.domain'};
9695: $uhome = $env{'user.home'};
9696: }
9697: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
9698: "$udom:$uname:rolesdef_$rolename=".
9699: escape($sysrole.'_'.$domrole.'_'.$courole);
9700: return reply($command,$uhome);
9701: } else {
9702: return 'refused';
9703: }
9704: }
9705:
9706: # ---------------- Make a metadata query against the network of library servers
9707:
9708: sub metadata_query {
9709: my ($query,$custom,$customshow,$server_array,$domains_hash)=@_;
9710: my %rhash;
9711: my %libserv = &all_library();
9712: my @server_list = (defined($server_array) ? @$server_array
9713: : keys(%libserv) );
9714: for my $server (@server_list) {
9715: my $domains = '';
9716: if (ref($domains_hash) eq 'HASH') {
9717: $domains = $domains_hash->{$server};
9718: }
9719: unless ($custom or $customshow) {
9720: my $reply=&reply("querysend:".&escape($query).':::'.&escape($domains),$server);
9721: $rhash{$server}=$reply;
9722: }
9723: else {
9724: my $reply=&reply("querysend:".&escape($query).':'.
9725: &escape($custom).':'.&escape($customshow).':'.&escape($domains),
9726: $server);
9727: $rhash{$server}=$reply;
9728: }
9729: }
9730: return \%rhash;
9731: }
9732:
9733: # ----------------------------------------- Send log queries and wait for reply
9734:
9735: sub log_query {
9736: my ($uname,$udom,$query,%filters)=@_;
9737: my $uhome=&homeserver($uname,$udom);
9738: if ($uhome eq 'no_host') { return 'error: no_host'; }
9739: my $uhost=&hostname($uhome);
9740: my $command=&escape(join(':',map{$_.'='.$filters{$_}} keys(%filters)));
9741: my $queryid=&reply("querysend:".$query.':'.$udom.':'.$uname.':'.$command,
9742: $uhome);
9743: unless ($queryid=~/^\Q$uhost\E\_/) { return 'error: '.$queryid; }
9744: return get_query_reply($queryid);
9745: }
9746:
9747: # -------------------------- Update MySQL table for portfolio file
9748:
9749: sub update_portfolio_table {
9750: my ($uname,$udom,$file_name,$query,$group,$action) = @_;
9751: if ($group ne '') {
9752: $file_name =~s /^\Q$group\E//;
9753: }
9754: my $homeserver = &homeserver($uname,$udom);
9755: my $queryid=
9756: &reply("querysend:".$query.':'.&escape($uname.':'.$udom.':'.$group).
9757: ':'.&escape($file_name).':'.$action,$homeserver);
9758: my $reply = &get_query_reply($queryid);
9759: return $reply;
9760: }
9761:
9762: # -------------------------- Update MySQL allusers table
9763:
9764: sub update_allusers_table {
9765: my ($uname,$udom,$names) = @_;
9766: my $homeserver = &homeserver($uname,$udom);
9767: my $queryid=
9768: &reply('querysend:allusers:'.&escape($uname).':'.&escape($udom).':'.
9769: 'lastname='.&escape($names->{'lastname'}).'%%'.
9770: 'firstname='.&escape($names->{'firstname'}).'%%'.
9771: 'middlename='.&escape($names->{'middlename'}).'%%'.
9772: 'generation='.&escape($names->{'generation'}).'%%'.
9773: 'permanentemail='.&escape($names->{'permanentemail'}).'%%'.
9774: 'id='.&escape($names->{'id'}),$homeserver);
9775: return;
9776: }
9777:
9778: # ------- Request retrieval of institutional classlists for course(s)
9779:
9780: sub fetch_enrollment_query {
9781: my ($context,$affiliatesref,$replyref,$dom,$cnum) = @_;
9782: my ($homeserver,$sleep,$loopmax);
9783: my $maxtries = 1;
9784: if ($context eq 'automated') {
9785: $homeserver = $perlvar{'lonHostID'};
9786: $sleep = 2;
9787: $loopmax = 100;
9788: $maxtries = 10; # will wait for up to 2000s for retrieval of classlist data before timeout
9789: } else {
9790: $homeserver = &homeserver($cnum,$dom);
9791: }
9792: my $host=&hostname($homeserver);
9793: my $cmd = '';
9794: foreach my $affiliate (keys(%{$affiliatesref})) {
9795: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
9796: }
9797: $cmd =~ s/%%$//;
9798: $cmd = &escape($cmd);
9799: my $query = 'fetchenrollment';
9800: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$env{'user.name'}.':'.$cmd,$homeserver);
9801: unless ($queryid=~/^\Q$host\E\_/) {
9802: &logthis('fetch_enrollment_query: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' context: '.$context.' '.$cnum);
9803: return 'error: '.$queryid;
9804: }
9805: my $reply = &get_query_reply($queryid,$sleep,$loopmax);
9806: my $tries = 1;
9807: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
9808: $reply = &get_query_reply($queryid,$sleep,$loopmax);
9809: $tries ++;
9810: }
9811: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
9812: &logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
9813: } else {
9814: my @responses = split(/:/,$reply);
9815: if (grep { $_ eq $homeserver } ¤t_machine_ids()) {
9816: foreach my $line (@responses) {
9817: my ($key,$value) = split(/=/,$line,2);
9818: $$replyref{$key} = $value;
9819: }
9820: } else {
9821: my $pathname = LONCAPA::tempdir();
9822: foreach my $line (@responses) {
9823: my ($key,$value) = split(/=/,$line);
9824: $$replyref{$key} = $value;
9825: if ($value > 0) {
9826: foreach my $item (@{$$affiliatesref{$key}}) {
9827: my $filename = $dom.'_'.$key.'_'.$item.'_classlist.xml';
9828: my $destname = $pathname.'/'.$filename;
9829: my $xml_classlist = &reply("autoretrieve:".$filename,$homeserver);
9830: if ($xml_classlist =~ /^error/) {
9831: &logthis('fetch_enrollment_query - autoretrieve error: '.$xml_classlist.' for '.$filename.' from server: '.$homeserver.' '.$context.' '.$cnum);
9832: } else {
9833: if ( open(FILE,">",$destname) ) {
9834: print FILE &unescape($xml_classlist);
9835: close(FILE);
9836: } else {
9837: &logthis('fetch_enrollment_query - error opening classlist file '.$destname.' '.$context.' '.$cnum);
9838: }
9839: }
9840: }
9841: }
9842: }
9843: }
9844: return 'ok';
9845: }
9846: return 'error';
9847: }
9848:
9849: sub get_query_reply {
9850: my ($queryid,$sleep,$loopmax) = @_;
9851: if (($sleep eq '') || ($sleep !~ /^\d+\.?\d*$/)) {
9852: $sleep = 0.2;
9853: }
9854: if (($loopmax eq '') || ($loopmax =~ /\D/)) {
9855: $loopmax = 100;
9856: }
9857: my $replyfile=LONCAPA::tempdir().$queryid;
9858: my $reply='';
9859: for (1..$loopmax) {
9860: sleep($sleep);
9861: if (-e $replyfile.'.end') {
9862: if (open(my $fh,"<",$replyfile)) {
9863: $reply = join('',<$fh>);
9864: close($fh);
9865: } else { return 'error: reply_file_error'; }
9866: return &unescape($reply);
9867: }
9868: }
9869: return 'timeout:'.$queryid;
9870: }
9871:
9872: sub courselog_query {
9873: #
9874: # possible filters:
9875: # url: url or symb
9876: # username
9877: # domain
9878: # action: view, submit, grade
9879: # start: timestamp
9880: # end: timestamp
9881: #
9882: my (%filters)=@_;
9883: unless ($env{'request.course.id'}) { return 'no_course'; }
9884: if ($filters{'url'}) {
9885: $filters{'url'}=&symbclean(&declutter($filters{'url'}));
9886: $filters{'url'}=~s/\.(\w+)$/(\\.\\d+)*\\.$1/;
9887: $filters{'url'}=~s/\.(\w+)\_\_\_/(\\.\\d+)*\\.$1/;
9888: }
9889: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
9890: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
9891: return &log_query($cname,$cdom,'courselog',%filters);
9892: }
9893:
9894: sub userlog_query {
9895: #
9896: # possible filters:
9897: # action: log check role
9898: # start: timestamp
9899: # end: timestamp
9900: #
9901: my ($uname,$udom,%filters)=@_;
9902: return &log_query($uname,$udom,'userlog',%filters);
9903: }
9904:
9905: #--------- Call auto-enrollment subs in localenroll.pm for homeserver for course
9906:
9907: sub auto_run {
9908: my ($cnum,$cdom) = @_;
9909: my $response = 0;
9910: my $settings;
9911: my %domconfig = &get_dom('configuration',['autoenroll'],$cdom);
9912: if (ref($domconfig{'autoenroll'}) eq 'HASH') {
9913: $settings = $domconfig{'autoenroll'};
9914: if ($settings->{'run'} eq '1') {
9915: $response = 1;
9916: }
9917: } else {
9918: my $homeserver;
9919: if (&is_course($cdom,$cnum)) {
9920: $homeserver = &homeserver($cnum,$cdom);
9921: } else {
9922: $homeserver = &domain($cdom,'primary');
9923: }
9924: if ($homeserver ne 'no_host') {
9925: $response = &reply('autorun:'.$cdom,$homeserver);
9926: }
9927: }
9928: return $response;
9929: }
9930:
9931: sub auto_get_sections {
9932: my ($cnum,$cdom,$inst_coursecode) = @_;
9933: my $homeserver;
9934: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
9935: $homeserver = &homeserver($cnum,$cdom);
9936: }
9937: if (!defined($homeserver)) {
9938: if ($cdom =~ /^$match_domain$/) {
9939: $homeserver = &domain($cdom,'primary');
9940: }
9941: }
9942: my @secs;
9943: if (defined($homeserver)) {
9944: my $response=&unescape(&reply('autogetsections:'.$inst_coursecode.':'.$cdom,$homeserver));
9945: unless ($response eq 'refused') {
9946: @secs = split(/:/,$response);
9947: }
9948: }
9949: return @secs;
9950: }
9951:
9952: sub auto_new_course {
9953: my ($cnum,$cdom,$inst_course_id,$owner,$coowners) = @_;
9954: my $homeserver = &homeserver($cnum,$cdom);
9955: my $response=&unescape(&reply('autonewcourse:'.$inst_course_id.':'.&escape($owner).':'.$cdom.':'.&escape($coowners),$homeserver));
9956: return $response;
9957: }
9958:
9959: sub auto_validate_courseID {
9960: my ($cnum,$cdom,$inst_course_id) = @_;
9961: my $homeserver = &homeserver($cnum,$cdom);
9962: my $response=&unescape(&reply('autovalidatecourse:'.$inst_course_id.':'.$cdom,$homeserver));
9963: return $response;
9964: }
9965:
9966: sub auto_validate_instcode {
9967: my ($cnum,$cdom,$instcode,$owner) = @_;
9968: my ($homeserver,$response);
9969: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
9970: $homeserver = &homeserver($cnum,$cdom);
9971: }
9972: if (!defined($homeserver)) {
9973: if ($cdom =~ /^$match_domain$/) {
9974: $homeserver = &domain($cdom,'primary');
9975: }
9976: }
9977: $response=&unescape(&reply('autovalidateinstcode:'.$cdom.':'.
9978: &escape($instcode).':'.&escape($owner),$homeserver));
9979: my ($outcome,$description,$defaultcredits) = map { &unescape($_); } split('&',$response,3);
9980: return ($outcome,$description,$defaultcredits);
9981: }
9982:
9983: sub auto_validate_inst_crosslist {
9984: my ($cnum,$cdom,$instcode,$inst_xlist,$coowner) = @_;
9985: my ($homeserver,$response);
9986: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
9987: $homeserver = &homeserver($cnum,$cdom);
9988: }
9989: if (!defined($homeserver)) {
9990: if ($cdom =~ /^$match_domain$/) {
9991: $homeserver = &domain($cdom,'primary');
9992: }
9993: }
9994: unless (($homeserver eq '') || ($homeserver eq 'no_host')) {
9995: $response=&reply('autovalidateinstcrosslist:'.$cdom.':'.
9996: &escape($instcode).':'.&escape($inst_xlist).':'.
9997: &escape($coowner),$homeserver);
9998: }
9999: return $response;
10000: }
10001:
10002: sub auto_create_password {
10003: my ($cnum,$cdom,$authparam,$udom) = @_;
10004: my ($homeserver,$response);
10005: my $create_passwd = 0;
10006: my $authchk = '';
10007: if ($udom =~ /^$match_domain$/) {
10008: $homeserver = &domain($udom,'primary');
10009: }
10010: if ($homeserver eq '') {
10011: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
10012: $homeserver = &homeserver($cnum,$cdom);
10013: }
10014: }
10015: if ($homeserver eq '') {
10016: $authchk = 'nodomain';
10017: } else {
10018: $response=&unescape(&reply('autocreatepassword:'.$authparam.':'.$cdom,$homeserver));
10019: if ($response eq 'refused') {
10020: $authchk = 'refused';
10021: } else {
10022: ($authparam,$create_passwd,$authchk) = split(/:/,$response);
10023: }
10024: }
10025: return ($authparam,$create_passwd,$authchk);
10026: }
10027:
10028: sub auto_photo_permission {
10029: my ($cnum,$cdom,$students) = @_;
10030: my $homeserver = &homeserver($cnum,$cdom);
10031: my ($outcome,$perm_reqd,$conditions) =
10032: split(/:/,&unescape(&reply('autophotopermission:'.$cdom,$homeserver)),3);
10033: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
10034: return (undef,undef);
10035: }
10036: return ($outcome,$perm_reqd,$conditions);
10037: }
10038:
10039: sub auto_checkphotos {
10040: my ($uname,$udom,$pid) = @_;
10041: my $homeserver = &homeserver($uname,$udom);
10042: my ($result,$resulttype);
10043: my $outcome = &unescape(&reply('autophotocheck:'.&escape($udom).':'.
10044: &escape($uname).':'.&escape($pid),
10045: $homeserver));
10046: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
10047: return (undef,undef);
10048: }
10049: if ($outcome) {
10050: ($result,$resulttype) = split(/:/,$outcome);
10051: }
10052: return ($result,$resulttype);
10053: }
10054:
10055: sub auto_photochoice {
10056: my ($cnum,$cdom) = @_;
10057: my $homeserver = &homeserver($cnum,$cdom);
10058: my ($update,$comment) = split(/:/,&unescape(&reply('autophotochoice:'.
10059: &escape($cdom),
10060: $homeserver)));
10061: if ($update =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
10062: return (undef,undef);
10063: }
10064: return ($update,$comment);
10065: }
10066:
10067: sub auto_photoupdate {
10068: my ($affiliatesref,$dom,$cnum,$photo) = @_;
10069: my $homeserver = &homeserver($cnum,$dom);
10070: my $host=&hostname($homeserver);
10071: my $cmd = '';
10072: my $maxtries = 1;
10073: foreach my $affiliate (keys(%{$affiliatesref})) {
10074: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
10075: }
10076: $cmd =~ s/%%$//;
10077: $cmd = &escape($cmd);
10078: my $query = 'institutionalphotos';
10079: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$cnum.':'.$cmd,$homeserver);
10080: unless ($queryid=~/^\Q$host\E\_/) {
10081: &logthis('institutionalphotos: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' and course: '.$cnum);
10082: return 'error: '.$queryid;
10083: }
10084: my $reply = &get_query_reply($queryid);
10085: my $tries = 1;
10086: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
10087: $reply = &get_query_reply($queryid);
10088: $tries ++;
10089: }
10090: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
10091: &logthis('institutionalphotos error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' course: '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
10092: } else {
10093: my @responses = split(/:/,$reply);
10094: my $outcome = shift(@responses);
10095: foreach my $item (@responses) {
10096: my ($key,$value) = split(/=/,$item);
10097: $$photo{$key} = $value;
10098: }
10099: return $outcome;
10100: }
10101: return 'error';
10102: }
10103:
10104: sub auto_instcode_format {
10105: my ($caller,$codedom,$instcodes,$codes,$codetitles,$cat_titles,
10106: $cat_order) = @_;
10107: my $courses = '';
10108: my @homeservers;
10109: if ($caller eq 'global') {
10110: my %servers = &get_servers($codedom,'library');
10111: foreach my $tryserver (keys(%servers)) {
10112: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
10113: push(@homeservers,$tryserver);
10114: }
10115: }
10116: } elsif ($caller eq 'requests') {
10117: if ($codedom =~ /^$match_domain$/) {
10118: my $chome = &domain($codedom,'primary');
10119: unless ($chome eq 'no_host') {
10120: push(@homeservers,$chome);
10121: }
10122: }
10123: } else {
10124: push(@homeservers,&homeserver($caller,$codedom));
10125: }
10126: foreach my $code (keys(%{$instcodes})) {
10127: $courses .= &escape($code).'='.&escape($$instcodes{$code}).'&';
10128: }
10129: chop($courses);
10130: my $ok_response = 0;
10131: my $response;
10132: while (@homeservers > 0 && $ok_response == 0) {
10133: my $server = shift(@homeservers);
10134: $response=&reply('autoinstcodeformat:'.$codedom.':'.$courses,$server);
10135: if ($response !~ /(con_lost|error|no_such_host|refused)/) {
10136: my ($codes_str,$codetitles_str,$cat_titles_str,$cat_order_str) =
10137: split(/:/,$response);
10138: %{$codes} = (%{$codes},&str2hash($codes_str));
10139: push(@{$codetitles},&str2array($codetitles_str));
10140: %{$cat_titles} = (%{$cat_titles},&str2hash($cat_titles_str));
10141: %{$cat_order} = (%{$cat_order},&str2hash($cat_order_str));
10142: $ok_response = 1;
10143: }
10144: }
10145: if ($ok_response) {
10146: return 'ok';
10147: } else {
10148: return $response;
10149: }
10150: }
10151:
10152: sub auto_instcode_defaults {
10153: my ($domain,$returnhash,$code_order) = @_;
10154: my @homeservers;
10155:
10156: my %servers = &get_servers($domain,'library');
10157: foreach my $tryserver (keys(%servers)) {
10158: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
10159: push(@homeservers,$tryserver);
10160: }
10161: }
10162:
10163: my $response;
10164: foreach my $server (@homeservers) {
10165: $response=&reply('autoinstcodedefaults:'.$domain,$server);
10166: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
10167:
10168: foreach my $pair (split(/\&/,$response)) {
10169: my ($name,$value)=split(/\=/,$pair);
10170: if ($name eq 'code_order') {
10171: @{$code_order} = split(/\&/,&unescape($value));
10172: } else {
10173: $returnhash->{&unescape($name)}=&unescape($value);
10174: }
10175: }
10176: return 'ok';
10177: }
10178:
10179: return $response;
10180: }
10181:
10182: sub auto_possible_instcodes {
10183: my ($domain,$codetitles,$cat_titles,$cat_orders,$code_order) = @_;
10184: unless ((ref($codetitles) eq 'ARRAY') && (ref($cat_titles) eq 'HASH') &&
10185: (ref($cat_orders) eq 'HASH') && (ref($code_order) eq 'ARRAY')) {
10186: return;
10187: }
10188: my (@homeservers,$uhome);
10189: if (defined(&domain($domain,'primary'))) {
10190: $uhome=&domain($domain,'primary');
10191: push(@homeservers,&domain($domain,'primary'));
10192: } else {
10193: my %servers = &get_servers($domain,'library');
10194: foreach my $tryserver (keys(%servers)) {
10195: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
10196: push(@homeservers,$tryserver);
10197: }
10198: }
10199: }
10200: my $response;
10201: foreach my $server (@homeservers) {
10202: $response=&reply('autopossibleinstcodes:'.$domain,$server);
10203: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
10204: my ($codetitlestr,$codeorderstr,$cat_title,$cat_order) =
10205: split(':',$response);
10206: @{$codetitles} = map { &unescape($_); } (split('&',$codetitlestr));
10207: @{$code_order} = map { &unescape($_); } (split('&',$codeorderstr));
10208: foreach my $item (split('&',$cat_title)) {
10209: my ($name,$value)=split('=',$item);
10210: $cat_titles->{&unescape($name)}=&thaw_unescape($value);
10211: }
10212: foreach my $item (split('&',$cat_order)) {
10213: my ($name,$value)=split('=',$item);
10214: $cat_orders->{&unescape($name)}=&thaw_unescape($value);
10215: }
10216: return 'ok';
10217: }
10218: return $response;
10219: }
10220:
10221: sub auto_courserequest_checks {
10222: my ($dom) = @_;
10223: my ($homeserver,%validations);
10224: if ($dom =~ /^$match_domain$/) {
10225: $homeserver = &domain($dom,'primary');
10226: }
10227: unless ($homeserver eq 'no_host') {
10228: my $response=&reply('autocrsreqchecks:'.$dom,$homeserver);
10229: unless ($response =~ /(con_lost|error|no_such_host|refused)/) {
10230: my @items = split(/&/,$response);
10231: foreach my $item (@items) {
10232: my ($key,$value) = split('=',$item);
10233: $validations{&unescape($key)} = &thaw_unescape($value);
10234: }
10235: }
10236: }
10237: return %validations;
10238: }
10239:
10240: sub auto_courserequest_validation {
10241: my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist,$custominfo) = @_;
10242: my ($homeserver,$response);
10243: if ($dom =~ /^$match_domain$/) {
10244: $homeserver = &domain($dom,'primary');
10245: }
10246: unless ($homeserver eq 'no_host') {
10247: my $customdata;
10248: if (ref($custominfo) eq 'HASH') {
10249: $customdata = &freeze_escape($custominfo);
10250: }
10251: $response=&unescape(&reply('autocrsreqvalidation:'.$dom.':'.&escape($owner).
10252: ':'.&escape($crstype).':'.&escape($inststatuslist).
10253: ':'.&escape($instcode).':'.&escape($instseclist).':'.
10254: $customdata,$homeserver));
10255: }
10256: return $response;
10257: }
10258:
10259: sub auto_validate_class_sec {
10260: my ($cdom,$cnum,$owners,$inst_class) = @_;
10261: my $homeserver = &homeserver($cnum,$cdom);
10262: my $ownerlist;
10263: if (ref($owners) eq 'ARRAY') {
10264: $ownerlist = join(',',@{$owners});
10265: } else {
10266: $ownerlist = $owners;
10267: }
10268: my $response=&reply('autovalidateclass_sec:'.$inst_class.':'.
10269: &escape($ownerlist).':'.$cdom,$homeserver);
10270: return $response;
10271: }
10272:
10273: sub auto_instsec_reformat {
10274: my ($cdom,$action,$instsecref) = @_;
10275: return unless(($action eq 'clutter') || ($action eq 'declutter'));
10276: my @homeservers;
10277: if (defined(&domain($cdom,'primary'))) {
10278: push(@homeservers,&domain($cdom,'primary'));
10279: } else {
10280: my %servers = &get_servers($cdom,'library');
10281: foreach my $tryserver (keys(%servers)) {
10282: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
10283: push(@homeservers,$tryserver);
10284: }
10285: }
10286: }
10287: my $response;
10288: my %reformatted = %{$instsecref};
10289: foreach my $server (@homeservers) {
10290: if (ref($instsecref) eq 'HASH') {
10291: my $info = &freeze_escape($instsecref);
10292: my $response=&reply('autoinstsecreformat:'.$cdom.':'.
10293: $action.':'.$info,$server);
10294: next if ($response =~ /(con_lost|error|no_such_host|refused|unknown_command)/);
10295: my @items = split(/&/,$response);
10296: foreach my $item (@items) {
10297: my ($key,$value) = split(/=/,$item);
10298: $reformatted{&unescape($key)} = &thaw_unescape($value);
10299: }
10300: }
10301: }
10302: return %reformatted;
10303: }
10304:
10305: sub auto_validate_instclasses {
10306: my ($cdom,$cnum,$owners,$classesref) = @_;
10307: my ($homeserver,%validations);
10308: $homeserver = &homeserver($cnum,$cdom);
10309: unless ($homeserver eq 'no_host') {
10310: my $ownerlist;
10311: if (ref($owners) eq 'ARRAY') {
10312: $ownerlist = join(',',@{$owners});
10313: } else {
10314: $ownerlist = $owners;
10315: }
10316: if (ref($classesref) eq 'HASH') {
10317: my $classes = &freeze_escape($classesref);
10318: my $response=&reply('autovalidateinstclasses:'.&escape($ownerlist).
10319: ':'.$cdom.':'.$classes,$homeserver);
10320: unless ($response =~ /(con_lost|error|no_such_host|refused)/) {
10321: my @items = split(/&/,$response);
10322: foreach my $item (@items) {
10323: my ($key,$value) = split('=',$item);
10324: $validations{&unescape($key)} = &thaw_unescape($value);
10325: }
10326: }
10327: }
10328: }
10329: return %validations;
10330: }
10331:
10332: sub auto_crsreq_update {
10333: my ($cdom,$cnum,$crstype,$action,$ownername,$ownerdomain,$fullname,$title,
10334: $code,$accessstart,$accessend,$inbound) = @_;
10335: my ($homeserver,%crsreqresponse);
10336: if ($cdom =~ /^$match_domain$/) {
10337: $homeserver = &domain($cdom,'primary');
10338: }
10339: unless (($homeserver eq 'no_host') || ($homeserver eq '')) {
10340: my $info;
10341: if (ref($inbound) eq 'HASH') {
10342: $info = &freeze_escape($inbound);
10343: }
10344: my $response=&reply('autocrsrequpdate:'.$cdom.':'.$cnum.':'.&escape($crstype).
10345: ':'.&escape($action).':'.&escape($ownername).':'.
10346: &escape($ownerdomain).':'.&escape($fullname).':'.
10347: &escape($title).':'.&escape($code).':'.
10348: &escape($accessstart).':'.&escape($accessend).':'.$info,
10349: $homeserver);
10350: unless ($response =~ /(con_lost|error|no_such_host|refused)/) {
10351: my @items = split(/&/,$response);
10352: foreach my $item (@items) {
10353: my ($key,$value) = split('=',$item);
10354: $crsreqresponse{&unescape($key)} = &thaw_unescape($value);
10355: }
10356: }
10357: }
10358: return \%crsreqresponse;
10359: }
10360:
10361: sub auto_export_grades {
10362: my ($cdom,$cnum,$inforef,$gradesref) = @_;
10363: my ($homeserver,%exportresponse);
10364: if ($cdom =~ /^$match_domain$/) {
10365: $homeserver = &domain($cdom,'primary');
10366: }
10367: unless (($homeserver eq 'no_host') || ($homeserver eq '')) {
10368: my $info;
10369: if (ref($inforef) eq 'HASH') {
10370: $info = &freeze_escape($inforef);
10371: }
10372: if (ref($gradesref) eq 'HASH') {
10373: my $grades = &freeze_escape($gradesref);
10374: my $response=&reply('encrypt:autoexportgrades:'.$cdom.':'.$cnum.':'.
10375: $info.':'.$grades,$homeserver);
10376: unless ($response =~ /(con_lost|error|no_such_host|refused|unknown_command)/) {
10377: my @items = split(/&/,$response);
10378: foreach my $item (@items) {
10379: my ($key,$value) = split('=',$item);
10380: $exportresponse{&unescape($key)} = &thaw_unescape($value);
10381: }
10382: }
10383: }
10384: }
10385: return \%exportresponse;
10386: }
10387:
10388: sub check_instcode_cloning {
10389: my ($codedefaults,$code_order,$cloner,$clonefromcode,$clonetocode) = @_;
10390: unless ((ref($codedefaults) eq 'HASH') && (ref($code_order) eq 'ARRAY')) {
10391: return;
10392: }
10393: my $canclone;
10394: if (@{$code_order} > 0) {
10395: my $instcoderegexp ='^';
10396: my @clonecodes = split(/\&/,$cloner);
10397: foreach my $item (@{$code_order}) {
10398: if (grep(/^\Q$item\E=/,@clonecodes)) {
10399: foreach my $pair (@clonecodes) {
10400: my ($key,$val) = split(/\=/,$pair,2);
10401: $val = &unescape($val);
10402: if ($key eq $item) {
10403: $instcoderegexp .= '('.$val.')';
10404: last;
10405: }
10406: }
10407: } else {
10408: $instcoderegexp .= $codedefaults->{$item};
10409: }
10410: }
10411: $instcoderegexp .= '$';
10412: my (@from,@to);
10413: eval {
10414: (@from) = ($clonefromcode =~ /$instcoderegexp/);
10415: (@to) = ($clonetocode =~ /$instcoderegexp/);
10416: };
10417: if ((@from > 0) && (@to > 0)) {
10418: my @diffs = &Apache::loncommon::compare_arrays(\@from,\@to);
10419: if (!@diffs) {
10420: $canclone = 1;
10421: }
10422: }
10423: }
10424: return $canclone;
10425: }
10426:
10427: sub default_instcode_cloning {
10428: my ($clonedom,$domdefclone,$clonefromcode,$clonetocode,$codedefaultsref,$codeorderref) = @_;
10429: my (%codedefaults,@code_order,$canclone);
10430: if ((ref($codedefaultsref) eq 'HASH') && (ref($codeorderref) eq 'ARRAY')) {
10431: %codedefaults = %{$codedefaultsref};
10432: @code_order = @{$codeorderref};
10433: } elsif ($clonedom) {
10434: &auto_instcode_defaults($clonedom,\%codedefaults,\@code_order);
10435: }
10436: if (($domdefclone) && (@code_order)) {
10437: my @clonecodes = split(/\+/,$domdefclone);
10438: my $instcoderegexp ='^';
10439: foreach my $item (@code_order) {
10440: if (grep(/^\Q$item\E$/,@clonecodes)) {
10441: $instcoderegexp .= '('.$codedefaults{$item}.')';
10442: } else {
10443: $instcoderegexp .= $codedefaults{$item};
10444: }
10445: }
10446: $instcoderegexp .= '$';
10447: my (@from,@to);
10448: eval {
10449: (@from) = ($clonefromcode =~ /$instcoderegexp/);
10450: (@to) = ($clonetocode =~ /$instcoderegexp/);
10451: };
10452: if ((@from > 0) && (@to > 0)) {
10453: my @diffs = &Apache::loncommon::compare_arrays(\@from,\@to);
10454: if (!@diffs) {
10455: $canclone = 1;
10456: }
10457: }
10458: }
10459: return $canclone;
10460: }
10461:
10462: # ------------------------------------------------------- Course Group routines
10463:
10464: sub get_coursegroups {
10465: my ($cdom,$cnum,$group,$namespace) = @_;
10466: return(&dump($namespace,$cdom,$cnum,$group));
10467: }
10468:
10469: sub modify_coursegroup {
10470: my ($cdom,$cnum,$groupsettings) = @_;
10471: return(&put('coursegroups',$groupsettings,$cdom,$cnum));
10472: }
10473:
10474: sub toggle_coursegroup_status {
10475: my ($cdom,$cnum,$group,$action) = @_;
10476: my ($from_namespace,$to_namespace);
10477: if ($action eq 'delete') {
10478: $from_namespace = 'coursegroups';
10479: $to_namespace = 'deleted_groups';
10480: } else {
10481: $from_namespace = 'deleted_groups';
10482: $to_namespace = 'coursegroups';
10483: }
10484: my %curr_group = &get_coursegroups($cdom,$cnum,$group,$from_namespace);
10485: if (my $tmp = &error(%curr_group)) {
10486: &Apache::lonnet::logthis('Error retrieving group: '.$tmp.' in '.$cnum.':'.$cdom);
10487: return ('read error',$tmp);
10488: } else {
10489: my %savedsettings = %curr_group;
10490: my $result = &put($to_namespace,\%savedsettings,$cdom,$cnum);
10491: my $deloutcome;
10492: if ($result eq 'ok') {
10493: $deloutcome = &del($from_namespace,[$group],$cdom,$cnum);
10494: } else {
10495: return ('write error',$result);
10496: }
10497: if ($deloutcome eq 'ok') {
10498: return 'ok';
10499: } else {
10500: return ('delete error',$deloutcome);
10501: }
10502: }
10503: }
10504:
10505: sub modify_group_roles {
10506: my ($cdom,$cnum,$group_id,$user,$end,$start,$userprivs,$selfenroll,$context,
10507: $othdomby,$requester) = @_;
10508: my $url = '/'.$cdom.'/'.$cnum.'/'.$group_id;
10509: my $role = 'gr/'.&escape($userprivs);
10510: my ($uname,$udom) = split(/:/,$user);
10511: my $result = &assignrole($udom,$uname,$url,$role,$end,$start,'',$selfenroll,$context,
10512: $othdomby,$requester);
10513: if ($result eq 'ok') {
10514: &devalidate_getgroups_cache($udom,$uname,$cdom,$cnum);
10515: }
10516: return $result;
10517: }
10518:
10519: sub modify_coursegroup_membership {
10520: my ($cdom,$cnum,$membership) = @_;
10521: my $result = &put('groupmembership',$membership,$cdom,$cnum);
10522: return $result;
10523: }
10524:
10525: sub get_active_groups {
10526: my ($udom,$uname,$cdom,$cnum) = @_;
10527: my $now = time;
10528: my %groups = ();
10529: foreach my $key (keys(%env)) {
10530: if ($key =~ m-user\.role\.gr\./($match_domain)/($match_courseid)/(\w+)$-) {
10531: my ($start,$end) = split(/\./,$env{$key});
10532: if (($end!=0) && ($end<$now)) { next; }
10533: if (($start!=0) && ($start>$now)) { next; }
10534: if ($1 eq $cdom && $2 eq $cnum) {
10535: $groups{$3} = $env{$key} ;
10536: }
10537: }
10538: }
10539: return %groups;
10540: }
10541:
10542: sub get_group_membership {
10543: my ($cdom,$cnum,$group) = @_;
10544: return(&dump('groupmembership',$cdom,$cnum,$group));
10545: }
10546:
10547: sub get_users_groups {
10548: my ($udom,$uname,$courseid) = @_;
10549: my @usersgroups;
10550: my $cachetime=1800;
10551:
10552: my $hashid="$udom:$uname:$courseid";
10553: my ($grouplist,$cached)=&is_cached_new('getgroups',$hashid);
10554: if (defined($cached)) {
10555: @usersgroups = split(/:/,$grouplist);
10556: } else {
10557: $grouplist = '';
10558: my $courseurl = &courseid_to_courseurl($courseid);
10559: my %roleshash = &dump('roles',$udom,$uname,$courseurl);
10560: my $access_end = $env{'course.'.$courseid.
10561: '.default_enrollment_end_date'};
10562: my $now = time;
10563: foreach my $key (keys(%roleshash)) {
10564: if ($key =~ /^\Q$courseurl\E\/(\w+)\_gr$/) {
10565: my $group = $1;
10566: if ($roleshash{$key} =~ /_(\d+)_(\d+)$/) {
10567: my $start = $2;
10568: my $end = $1;
10569: if ($start == -1) { next; } # deleted from group
10570: if (($start!=0) && ($start>$now)) { next; }
10571: if (($end!=0) && ($end<$now)) {
10572: if ($access_end && $access_end < $now) {
10573: if ($access_end - $end < 86400) {
10574: push(@usersgroups,$group);
10575: }
10576: }
10577: next;
10578: }
10579: push(@usersgroups,$group);
10580: }
10581: }
10582: }
10583: @usersgroups = &sort_course_groups($courseid,@usersgroups);
10584: $grouplist = join(':',@usersgroups);
10585: &do_cache_new('getgroups',$hashid,$grouplist,$cachetime);
10586: }
10587: return @usersgroups;
10588: }
10589:
10590: sub devalidate_getgroups_cache {
10591: my ($udom,$uname,$cdom,$cnum)=@_;
10592: my $courseid = $cdom.'_'.$cnum;
10593:
10594: my $hashid="$udom:$uname:$courseid";
10595: &devalidate_cache_new('getgroups',$hashid);
10596: }
10597:
10598: # ------------------------------------------------------------------ Plain Text
10599:
10600: sub plaintext {
10601: my ($short,$type,$cid,$forcedefault) = @_;
10602: if ($short =~ m{^cr/}) {
10603: return (split('/',$short))[-1];
10604: }
10605: if (!defined($cid)) {
10606: $cid = $env{'request.course.id'};
10607: }
10608: my %rolenames = (
10609: Course => 'std',
10610: Community => 'alt1',
10611: Placement => 'std',
10612: );
10613: if ($cid ne '') {
10614: if ($env{'course.'.$cid.'.'.$short.'.plaintext'} ne '') {
10615: unless ($forcedefault) {
10616: my $roletext = $env{'course.'.$cid.'.'.$short.'.plaintext'};
10617: &Apache::lonlocal::mt_escape(\$roletext);
10618: return &Apache::lonlocal::mt($roletext);
10619: }
10620: }
10621: }
10622: if ((defined($type)) && (defined($rolenames{$type})) &&
10623: (defined($rolenames{$type})) &&
10624: (defined($prp{$short}{$rolenames{$type}}))) {
10625: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$type}});
10626: } elsif ($cid ne '') {
10627: my $crstype = $env{'course.'.$cid.'.type'};
10628: if (($crstype ne '') && (defined($rolenames{$crstype})) &&
10629: (defined($prp{$short}{$rolenames{$crstype}}))) {
10630: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$crstype}});
10631: }
10632: }
10633: return &Apache::lonlocal::mt($prp{$short}{'std'});
10634: }
10635:
10636: # ----------------------------------------------------------------- Assign Role
10637:
10638: sub assignrole {
10639: my ($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,
10640: $context,$othdomby,$requester,$reqsec,$reqrole)=@_;
10641: my ($mrole,$rolelogcontext);
10642: if ($role =~ /^cr\//) {
10643: my $cwosec=$url;
10644: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
10645: if ((!&allowed('ccr',$cwosec)) && (!&allowed('ccr',$udom))) {
10646: my $refused = 1;
10647: if ($context eq 'requestcourses') {
10648: if (($env{'user.name'} ne '') && ($env{'user.domain'} ne '')) {
10649: if ($role =~ m{^cr/($match_domain)/($match_username)/([^/]+)$}) {
10650: if (($1 eq $env{'user.domain'}) && ($2 eq $env{'user.name'})) {
10651: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});
10652: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
10653: if ($crsenv{'internal.courseowner'} eq
10654: $env{'user.name'}.':'.$env{'user.domain'}) {
10655: $refused = '';
10656: }
10657: }
10658: }
10659: }
10660: } elsif (($context eq 'course') && ($othdomby eq 'othdombyuser')) {
10661: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});
10662: my ($sec) = ($url =~ m{^/\Q$cwosec\E/(.*)$});
10663: my $key = "$uname:$udom:$role:$sec";
10664: my %queuedrolereq = &Apache::lonnet::get('nohist_othdomqueued',[$key],$cdom,$cnum);
10665: if ((exists($queuedrolereq{$key})) && (ref($queuedrolereq{$key}) eq 'HASH')) {
10666: if (($queuedrolereq{$key}{'adj'} eq 'user') && ($queuedrolereq{$key}{'requester'} eq $requester)) {
10667: $refused = '';
10668: }
10669: }
10670: }
10671: if ($refused) {
10672: &logthis('Refused custom assignrole: '.
10673: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.
10674: ' by '.$env{'user.name'}.' at '.$env{'user.domain'});
10675: return 'refused';
10676: }
10677: }
10678: $mrole='cr';
10679: } elsif ($role =~ /^gr\//) {
10680: my $cwogrp=$url;
10681: $cwogrp=~s{^/($match_domain)/($match_courseid)/.*}{$1/$2};
10682: if (!&allowed('mdg',$cwogrp)) {
10683: my $refused = 1;
10684: if (($refused) && ($othdomby eq 'othdombyuser') && ($requester ne '') && ($reqrole ne '')) {
10685: my ($cdom,$cnum) = ($cwogrp =~ m{^/?($match_domain)/($match_courseid)$});
10686: my $key = "$uname:$udom:$reqrole:$reqsec";
10687: my %queuedrolereq = &Apache::lonnet::get('nohist_othdomqueued',[$key],$cdom,$cnum);
10688: if ((exists($queuedrolereq{$key})) && (ref($queuedrolereq{$key}) eq 'HASH')) {
10689: if (($queuedrolereq{$key}{'adj'} eq 'user') && ($queuedrolereq{$key}{'requester'} eq $requester)) {
10690: $refused = '';
10691: }
10692: }
10693: }
10694: if ($refused) {
10695: &logthis('Refused group assignrole: '.
10696: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
10697: $env{'user.name'}.' at '.$env{'user.domain'});
10698: return 'refused';
10699: }
10700: }
10701: $mrole='gr';
10702: } else {
10703: my $cwosec=$url;
10704: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
10705: if (!(&allowed('c'.$role,$cwosec)) && !(&allowed('c'.$role,$udom))) {
10706: my $refused;
10707: if (($env{'request.course.sec'} ne '') && ($role eq 'st')) {
10708: if (!(&allowed('c'.$role,$url))) {
10709: $refused = 1;
10710: }
10711: } else {
10712: $refused = 1;
10713: }
10714: if ($refused) {
10715: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});
10716: if (!$selfenroll && ($othdomby ne 'othdombyuser') &&
10717: (($context eq 'course') || ($context eq 'ltienroll' && $env{'request.lti.login'}))) {
10718: my %crsenv;
10719: if ($role eq 'cc' || $role eq 'co') {
10720: %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
10721: if (($role eq 'cc') && ($cnum !~ /^$match_community$/)) {
10722: if ($env{'request.role'} eq 'cc./'.$cdom.'/'.$cnum) {
10723: if ($crsenv{'internal.courseowner'} eq
10724: $env{'user.name'}.':'.$env{'user.domain'}) {
10725: $refused = '';
10726: }
10727: }
10728: } elsif (($role eq 'co') && ($cnum =~ /^$match_community$/)) {
10729: if ($env{'request.role'} eq 'co./'.$cdom.'/'.$cnum) {
10730: if ($crsenv{'internal.courseowner'} eq
10731: $env{'user.name'}.':'.$env{'user.domain'}) {
10732: $refused = '';
10733: }
10734: }
10735: }
10736: }
10737: } elsif (($selfenroll == 1) && ($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
10738: if ($role eq 'st') {
10739: $refused = '';
10740: } elsif (($context eq 'ltienroll') && ($env{'request.lti.login'})) {
10741: $refused = '';
10742: }
10743: } elsif ($othdomby eq 'othdombyuser') {
10744: my ($key,%queuedrolereq);
10745: if ($context eq 'course') {
10746: my ($sec) = ($url =~ m{^/\Q$cwosec\E/(.*)$});
10747: $key = "$uname:$udom:$role:$sec";
10748: %queuedrolereq = &Apache::lonnet::get('nohist_othdomqueued',[$key],$cdom,$cnum);
10749: if ((exists($queuedrolereq{$key})) && (ref($queuedrolereq{$key}) eq 'HASH')) {
10750: if (($queuedrolereq{$key}{'adj'} eq 'user') && ($queuedrolereq{$key}{'requester'} eq $requester)) {
10751: if ((($role eq 'cc') && ($cnum !~ /^$match_community$/)) ||
10752: (($role eq 'co') && ($cnum =~ /^$match_community$/))) {
10753: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
10754: if ($crsenv{'internal.courseowner'} eq $requester) {
10755: $refused = '';
10756: }
10757: } elsif ($role =~ /^(?:in|ta|ep|st)$/) {
10758: $refused = '';
10759: }
10760: }
10761: }
10762: } elsif (($context eq 'author') && ($role =~ /^ca|aa$/)) {
10763: my $key = "$uname:$udom:$role";
10764: my ($audom,$auname) = ($url =~ m{^/($match_domain)/($match_username)$});
10765: if (($audom ne '') && ($auname ne '')) {
10766: my %queuedrolereq = &Apache::lonnet::get('nohist_othdomqueued',[$key],$audom,$auname);
10767: if ((exists($queuedrolereq{$key})) && (ref($queuedrolereq{$key}) eq 'HASH')) {
10768: if (($queuedrolereq{$key}{'adj'} eq 'user') && ($queuedrolereq{$key}{'requester'} eq $requester)) {
10769: $refused = '';
10770: }
10771: }
10772: }
10773: } elsif (($context eq 'domain') && ($role ne 'dc') && ($role ne 'su')) {
10774: my $key = "$uname:$udom:$role";
10775: my ($roledom) = ($url =~ m{^/($match_domain)/\Q$role\E$});
10776: if ($roledom ne '') {
10777: my $confname = $roledom.'-domainconfig';
10778: my %queuedrolereq = &Apache::lonnet::get('nohist_othdomqueued',[$key],$roledom,$confname);
10779: if ((exists($queuedrolereq{$key})) && (ref($queuedrolereq{$key}) eq 'HASH')) {
10780: if (($queuedrolereq{$key}{'adj'} eq 'user') && ($queuedrolereq{$key}{'requester'} eq $requester)) {
10781: $refused = '';
10782: }
10783: }
10784: }
10785: }
10786: } elsif ($context eq 'requestcourses') {
10787: my @possroles = ('st','ta','ep','in','cc','co');
10788: if ((grep(/^\Q$role\E$/,@possroles)) && ($env{'user.name'} ne '' && $env{'user.domain'} ne '')) {
10789: my $wrongcc;
10790: if ($cnum =~ /^$match_community$/) {
10791: $wrongcc = 1 if ($role eq 'cc');
10792: } else {
10793: $wrongcc = 1 if ($role eq 'co');
10794: }
10795: unless ($wrongcc) {
10796: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
10797: if ($crsenv{'internal.courseowner'} eq
10798: $env{'user.name'}.':'.$env{'user.domain'}) {
10799: $refused = '';
10800: }
10801: }
10802: }
10803: } elsif ($context eq 'requestauthor') {
10804: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
10805: ($url eq '/'.$udom.'/') && ($role eq 'au')) {
10806: if ($env{'environment.requestauthor'} eq 'automatic') {
10807: $refused = '';
10808: } else {
10809: my %domdefaults = &get_domain_defaults($udom);
10810: if (ref($domdefaults{'requestauthor'}) eq 'HASH') {
10811: my $checkbystatus;
10812: if ($env{'user.adv'}) {
10813: my $disposition = $domdefaults{'requestauthor'}{'_LC_adv'};
10814: if ($disposition eq 'automatic') {
10815: $refused = '';
10816: } elsif ($disposition eq '') {
10817: $checkbystatus = 1;
10818: }
10819: } else {
10820: $checkbystatus = 1;
10821: }
10822: if ($checkbystatus) {
10823: if ($env{'environment.inststatus'}) {
10824: my @inststatuses = split(/,/,$env{'environment.inststatus'});
10825: foreach my $type (@inststatuses) {
10826: if (($type ne '') &&
10827: ($domdefaults{'requestauthor'}{$type} eq 'automatic')) {
10828: $refused = '';
10829: }
10830: }
10831: } elsif ($domdefaults{'requestauthor'}{'default'} eq 'automatic') {
10832: $refused = '';
10833: }
10834: }
10835: }
10836: }
10837: }
10838: } elsif (($context eq 'author') && (($role eq 'ca' || $role eq 'aa'))) {
10839: if ($url =~ m{^/($match_domain)/($match_username)$}) {
10840: my ($audom,$auname) = ($1,$2);
10841: if ((&Apache::lonnet::allowed('v'.$role,"$audom/$auname")) &&
10842: ($env{"environment.internal.manager.$url"})) {
10843: $refused = '';
10844: $rolelogcontext = 'coauthor';
10845: }
10846: }
10847: }
10848: if ($refused) {
10849: &logthis('Refused assignrole: '.$udom.' '.$uname.' '.$url.
10850: ' '.$role.' '.$end.' '.$start.' by '.
10851: $env{'user.name'}.' at '.$env{'user.domain'});
10852: return 'refused';
10853: }
10854: }
10855: } elsif ($role eq 'au') {
10856: if ($url ne '/'.$udom.'/') {
10857: &logthis('Attempt by '.$env{'user.name'}.':'.$env{'user.domain'}.
10858: ' to assign author role for '.$uname.':'.$udom.
10859: ' in domain: '.$url.' refused (wrong domain).');
10860: return 'refused';
10861: }
10862: }
10863: $mrole=$role;
10864: }
10865: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
10866: "$udom:$uname:$url".'_'."$mrole=$role";
10867: if ($end) { $command.='_'.$end; }
10868: if ($start) {
10869: if ($end) {
10870: $command.='_'.$start;
10871: } else {
10872: $command.='_0_'.$start;
10873: }
10874: }
10875: my $origstart = $start;
10876: my $origend = $end;
10877: my $delflag;
10878: # actually delete
10879: if ($deleteflag) {
10880: if ((&allowed('dro',$udom)) || (&allowed('dro',$url))) {
10881: # modify command to delete the role
10882: $command="encrypt:rolesdel:$env{'user.domain'}:$env{'user.name'}:".
10883: "$udom:$uname:$url".'_'."$mrole";
10884: &logthis("$env{'user.name'} at $env{'user.domain'} deletes $mrole in $url for $uname at $udom");
10885: # set start and finish to negative values for userrolelog
10886: $start=-1;
10887: $end=-1;
10888: $delflag = 1;
10889: }
10890: }
10891: # send command
10892: my $answer=&reply($command,&homeserver($uname,$udom));
10893: # log new user role if status is ok
10894: if ($answer eq 'ok') {
10895: &userrolelog($role,$uname,$udom,$url,$start,$end);
10896: if (($role eq 'cc') || ($role eq 'in') ||
10897: ($role eq 'ep') || ($role eq 'ad') ||
10898: ($role eq 'ta') || ($role eq 'st') ||
10899: ($role=~/^cr/) || ($role eq 'gr') ||
10900: ($role eq 'co')) {
10901: # for course roles, perform group memberships changes triggered by role change.
10902: unless ($role =~ /^gr/) {
10903: &Apache::longroup::group_changes($udom,$uname,$url,$role,$origend,
10904: $origstart,$selfenroll,$context);
10905: }
10906: &courserolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
10907: $selfenroll,$context,$othdomby,$requester);
10908: } elsif (($role eq 'li') || ($role eq 'dg') || ($role eq 'sc') ||
10909: ($role eq 'au') || ($role eq 'dc') || ($role eq 'dh') ||
10910: ($role eq 'da')) {
10911: &domainrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
10912: $context,$othdomby,$requester);
10913: } elsif (($role eq 'ca') || ($role eq 'aa')) {
10914: if ($rolelogcontext eq '') {
10915: $rolelogcontext = $context;
10916: }
10917: &coauthorrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
10918: $rolelogcontext,$othdomby,$requester);
10919: }
10920: if ($role eq 'cc') {
10921: &autoupdate_coowners($url,$end,$start,$uname,$udom);
10922: }
10923: }
10924: return $answer;
10925: }
10926:
10927: sub autoupdate_coowners {
10928: my ($url,$end,$start,$uname,$udom) = @_;
10929: my ($cdom,$cnum) = ($url =~ m{^/($match_domain)/($match_courseid)});
10930: if (($cdom ne '') && ($cnum ne '')) {
10931: my $now = time;
10932: my %domdesign = &Apache::loncommon::get_domainconf($cdom);
10933: if ($domdesign{$cdom.'.autoassign.co-owners'}) {
10934: my %coursehash = &coursedescription($cdom.'_'.$cnum);
10935: my $instcode = $coursehash{'internal.coursecode'};
10936: my $xlists = $coursehash{'internal.crosslistings'};
10937: if ($instcode ne '') {
10938: if (($start && $start <= $now) && ($end == 0) || ($end > $now)) {
10939: unless ($coursehash{'internal.courseowner'} eq $uname.':'.$udom) {
10940: my ($delcoowners,@newcoowners,$putresult,$delresult,$coowners);
10941: my ($result,$desc) = &auto_validate_instcode($cnum,$cdom,$instcode,$uname.':'.$udom);
10942: unless ($result eq 'valid') {
10943: if ($xlists ne '') {
10944: foreach my $xlist (split(',',$xlists)) {
10945: my ($inst_crosslist,$lcsec) = split(':',$xlist);
10946: $result =
10947: &auto_validate_inst_crosslist($cnum,$cdom,$instcode,
10948: $inst_crosslist,$uname.':'.$udom);
10949: last if ($result eq 'valid');
10950: }
10951: }
10952: }
10953: if ($result eq 'valid') {
10954: if ($coursehash{'internal.co-owners'}) {
10955: foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {
10956: push(@newcoowners,$coowner);
10957: }
10958: unless (grep(/^\Q$uname\E:\Q$udom\E$/,@newcoowners)) {
10959: push(@newcoowners,$uname.':'.$udom);
10960: }
10961: @newcoowners = sort(@newcoowners);
10962: } else {
10963: push(@newcoowners,$uname.':'.$udom);
10964: }
10965: } elsif ($coursehash{'internal.co-owners'}) {
10966: foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {
10967: unless ($coowner eq $uname.':'.$udom) {
10968: push(@newcoowners,$coowner);
10969: }
10970: }
10971: unless (@newcoowners > 0) {
10972: $delcoowners = 1;
10973: $coowners = '';
10974: }
10975: }
10976: if (@newcoowners || $delcoowners) {
10977: &store_coowners($cdom,$cnum,$coursehash{'home'},
10978: $delcoowners,@newcoowners);
10979: }
10980: }
10981: }
10982: }
10983: }
10984: }
10985: }
10986:
10987: sub store_coowners {
10988: my ($cdom,$cnum,$chome,$delcoowners,@newcoowners) = @_;
10989: my $cid = $cdom.'_'.$cnum;
10990: my ($coowners,$delresult,$putresult);
10991: if (@newcoowners) {
10992: $coowners = join(',',@newcoowners);
10993: my %coownershash = (
10994: 'internal.co-owners' => $coowners,
10995: );
10996: $putresult = &put('environment',\%coownershash,$cdom,$cnum);
10997: if ($putresult eq 'ok') {
10998: if ($env{'course.'.$cid.'.num'} eq $cnum) {
10999: &appenv({'course.'.$cid.'.internal.co-owners' => $coowners});
11000: }
11001: }
11002: }
11003: if ($delcoowners) {
11004: $delresult = &Apache::lonnet::del('environment',['internal.co-owners'],$cdom,$cnum);
11005: if ($delresult eq 'ok') {
11006: if ($env{'course.'.$cid.'.internal.co-owners'}) {
11007: &Apache::lonnet::delenv('course.'.$cid.'.internal.co-owners');
11008: }
11009: }
11010: }
11011: if (($putresult eq 'ok') || ($delresult eq 'ok')) {
11012: my %crsinfo =
11013: &courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.');
11014: if (ref($crsinfo{$cid}) eq 'HASH') {
11015: $crsinfo{$cid}{'co-owners'} = \@newcoowners;
11016: my $cidput = &courseidput($cdom,\%crsinfo,$chome,'notime');
11017: }
11018: }
11019: }
11020:
11021: # -------------------------------------------------- Modify user authentication
11022: # Overrides without validation
11023:
11024: sub modifyuserauth {
11025: my ($udom,$uname,$umode,$upass)=@_;
11026: my $uhome=&homeserver($uname,$udom);
11027: my $allowed;
11028: if (&allowed('mau',$udom)) {
11029: $allowed = 1;
11030: } elsif (($umode eq 'internal') && ($udom eq $env{'user.domain'}) &&
11031: ($env{'request.course.id'}) && (&allowed('mip',$env{'request.course.id'})) &&
11032: (!$env{'course.'.$env{'request.course.id'}.'.internal.nopasswdchg'})) {
11033: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
11034: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
11035: if (($cdom ne '') && ($cnum ne '')) {
11036: my $is_owner = &is_course_owner($cdom,$cnum);
11037: if ($is_owner) {
11038: $allowed = 1;
11039: }
11040: }
11041: }
11042: unless ($allowed) { return 'refused'; }
11043: &logthis('Call to modify user authentication '.$udom.', '.$uname.', '.
11044: $umode.' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
11045: ' in domain '.$env{'request.role.domain'});
11046: my $reply=&reply('encrypt:changeuserauth:'.$udom.':'.$uname.':'.$umode.':'.
11047: &escape($upass),$uhome);
11048: my $ip = &get_requestor_ip();
11049: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
11050: 'Authentication changed for '.$udom.', '.$uname.', '.$umode.
11051: '(Remote '.$ip.'): '.$reply);
11052: &log($udom,,$uname,$uhome,
11053: 'Authentication changed by '.$env{'user.domain'}.', '.
11054: $env{'user.name'}.', '.$umode.
11055: '(Remote '.$ip.'): '.$reply);
11056: unless ($reply eq 'ok') {
11057: &logthis('Authentication mode error: '.$reply);
11058: return 'error: '.$reply;
11059: }
11060: return 'ok';
11061: }
11062:
11063: # --------------------------------------------------------------- Modify a user
11064:
11065: sub modifyuser {
11066: my ($udom, $uname, $uid,
11067: $umode, $upass, $first,
11068: $middle, $last, $gene,
11069: $forceid, $desiredhome, $email, $inststatus, $candelete)=@_;
11070: $udom= &LONCAPA::clean_domain($udom);
11071: $uname=&LONCAPA::clean_username($uname);
11072: my $showcandelete = 'none';
11073: if (ref($candelete) eq 'ARRAY') {
11074: if (@{$candelete} > 0) {
11075: $showcandelete = join(', ',@{$candelete});
11076: }
11077: }
11078: &logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '.
11079: $umode.', '.$first.', '.$middle.', '.
11080: $last.', '.$gene.'(forceid: '.$forceid.'; candelete: '.$showcandelete.')'.
11081: (defined($desiredhome) ? ' desiredhome = '.$desiredhome :
11082: ' desiredhome not specified').
11083: ' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
11084: ' in domain '.$env{'request.role.domain'});
11085: my $uhome=&homeserver($uname,$udom,'true');
11086: my $newuser;
11087: if ($uhome eq 'no_host') {
11088: $newuser = 1;
11089: unless (($umode && ($upass ne '')) || ($umode eq 'localauth') ||
11090: ($umode eq 'lti')) {
11091: return 'error: more information needed to create new user';
11092: }
11093: }
11094: # ----------------------------------------------------------------- Create User
11095: if (($uhome eq 'no_host') &&
11096: (($umode && $upass) || ($umode eq 'localauth') || ($umode eq 'lti'))) {
11097: my $unhome='';
11098: if (defined($desiredhome) && &host_domain($desiredhome) eq $udom) {
11099: $unhome = $desiredhome;
11100: } elsif($env{'course.'.$env{'request.course.id'}.'.domain'} eq $udom) {
11101: $unhome=$env{'course.'.$env{'request.course.id'}.'.home'};
11102: } else { # load balancing routine for determining $unhome
11103: my $loadm=10000000;
11104: my %servers = &get_servers($udom,'library');
11105: foreach my $tryserver (keys(%servers)) {
11106: my $answer=reply('load',$tryserver);
11107: if (($answer=~/\d+/) && ($answer<$loadm)) {
11108: $loadm=$answer;
11109: $unhome=$tryserver;
11110: }
11111: }
11112: }
11113: if (($unhome eq '') || ($unhome eq 'no_host')) {
11114: return 'error: unable to find a home server for '.$uname.
11115: ' in domain '.$udom;
11116: }
11117: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':'.$umode.':'.
11118: &escape($upass),$unhome);
11119: unless ($reply eq 'ok') {
11120: return 'error: '.$reply;
11121: }
11122: $uhome=&homeserver($uname,$udom,'true');
11123: if (($uhome eq '') || ($uhome eq 'no_host') || ($uhome ne $unhome)) {
11124: return 'error: unable verify users home machine.';
11125: }
11126: } # End of creation of new user
11127: # ---------------------------------------------------------------------- Add ID
11128: if ($uid) {
11129: $uid=~tr/A-Z/a-z/;
11130: my %uidhash=&idrget($udom,$uname);
11131: if (($uidhash{$uname}) && ($uidhash{$uname}!~/error\:/)
11132: && (!$forceid)) {
11133: unless ($uid eq $uidhash{$uname}) {
11134: return 'error: user id "'.$uid.'" does not match '.
11135: 'current user id "'.$uidhash{$uname}.'".';
11136: }
11137: } else {
11138: &idput($udom,{$uname => $uid},$uhome,'ids');
11139: }
11140: }
11141: # -------------------------------------------------------------- Add names, etc
11142: my @tmp=&get('environment',
11143: ['firstname','middlename','lastname','generation','id',
11144: 'permanentemail','inststatus'],
11145: $udom,$uname);
11146: my (%names,%oldnames);
11147: if ($tmp[0] =~ m/^error:.*/) {
11148: %names=();
11149: } else {
11150: %names = @tmp;
11151: %oldnames = %names;
11152: }
11153: #
11154: # If name, email and/or uid are blank (e.g., because an uploaded file
11155: # of users did not contain them), do not overwrite existing values
11156: # unless field is in $candelete array ref.
11157: #
11158:
11159: my @fields = ('firstname','middlename','lastname','generation',
11160: 'permanentemail','id');
11161: my %newvalues;
11162: if (ref($candelete) eq 'ARRAY') {
11163: foreach my $field (@fields) {
11164: if (grep(/^\Q$field\E$/,@{$candelete})) {
11165: if ($field eq 'firstname') {
11166: $names{$field} = $first;
11167: } elsif ($field eq 'middlename') {
11168: $names{$field} = $middle;
11169: } elsif ($field eq 'lastname') {
11170: $names{$field} = $last;
11171: } elsif ($field eq 'generation') {
11172: $names{$field} = $gene;
11173: } elsif ($field eq 'permanentemail') {
11174: $names{$field} = $email;
11175: } elsif ($field eq 'id') {
11176: $names{$field} = $uid;
11177: }
11178: }
11179: }
11180: }
11181: if ($first) { $names{'firstname'} = $first; }
11182: if (defined($middle)) { $names{'middlename'} = $middle; }
11183: if ($last) { $names{'lastname'} = $last; }
11184: if (defined($gene)) { $names{'generation'} = $gene; }
11185: if ($email) {
11186: $email=~s/[^\w\@\.\-\,]//gs;
11187: if ($email=~/\@/) { $names{'permanentemail'} = $email; }
11188: }
11189: if ($uid) { $names{'id'} = $uid; }
11190: if (defined($inststatus)) {
11191: $names{'inststatus'} = '';
11192: my ($usertypes,$typesorder) = &retrieve_inst_usertypes($udom);
11193: if (ref($usertypes) eq 'HASH') {
11194: my @okstatuses;
11195: foreach my $item (split(/:/,$inststatus)) {
11196: if (defined($usertypes->{$item})) {
11197: push(@okstatuses,$item);
11198: }
11199: }
11200: if (@okstatuses) {
11201: $names{'inststatus'} = join(':', map { &escape($_); } @okstatuses);
11202: }
11203: }
11204: }
11205: my $logmsg = $udom.', '.$uname.', '.$uid.', '.
11206: $umode.', '.$first.', '.$middle.', '.
11207: $last.', '.$gene.', '.$email.', '.$inststatus;
11208: if ($env{'user.name'} ne '' && $env{'user.domain'}) {
11209: $logmsg .= ' by '.$env{'user.name'}.' at '.$env{'user.domain'};
11210: } else {
11211: $logmsg .= ' during self creation';
11212: }
11213: my $changed;
11214: if ($newuser) {
11215: $changed = 1;
11216: } else {
11217: foreach my $field (@fields) {
11218: if ($names{$field} ne $oldnames{$field}) {
11219: $changed = 1;
11220: last;
11221: }
11222: }
11223: }
11224: unless ($changed) {
11225: $logmsg = 'No changes in user information needed for: '.$logmsg;
11226: &logthis($logmsg);
11227: return 'ok';
11228: }
11229: my $reply = &put('environment', \%names, $udom,$uname);
11230: if ($reply ne 'ok') {
11231: return 'error: '.$reply;
11232: }
11233: if ($names{'permanentemail'} ne $oldnames{'permanentemail'}) {
11234: &devalidate_cache_new('emailscache',$uname.':'.$udom);
11235: }
11236: my $sqlresult = &update_allusers_table($uname,$udom,\%names);
11237: &devalidate_cache_new('namescache',$uname.':'.$udom);
11238: $logmsg = 'Success modifying user '.$logmsg;
11239: &logthis($logmsg);
11240: return 'ok';
11241: }
11242:
11243: # -------------------------------------------------------------- Modify student
11244:
11245: sub modifystudent {
11246: my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec,
11247: $end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid,
11248: $selfenroll,$context,$inststatus,$credits,$instsec)=@_;
11249: if (!$cid) {
11250: unless ($cid=$env{'request.course.id'}) {
11251: return 'not_in_class';
11252: }
11253: }
11254: # --------------------------------------------------------------- Make the user
11255: my $reply=&modifyuser
11256: ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$forceid,
11257: $desiredhome,$email,$inststatus);
11258: unless ($reply eq 'ok') { return $reply; }
11259: # This will cause &modify_student_enrollment to get the uid from the
11260: # student's environment
11261: $uid = undef if (!$forceid);
11262: $reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last,
11263: $gene,$usec,$end,$start,$type,$locktype,
11264: $cid,$selfenroll,$context,$credits,$instsec);
11265: return $reply;
11266: }
11267:
11268: sub modify_student_enrollment {
11269: my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type,
11270: $locktype,$cid,$selfenroll,$context,$credits,$instsec,$othdomby,$requester) = @_;
11271: my ($cdom,$cnum,$chome);
11272: if (!$cid) {
11273: unless ($cid=$env{'request.course.id'}) {
11274: return 'not_in_class';
11275: }
11276: $cdom=$env{'course.'.$cid.'.domain'};
11277: $cnum=$env{'course.'.$cid.'.num'};
11278: } else {
11279: ($cdom,$cnum)=split(/_/,$cid);
11280: }
11281: $chome=$env{'course.'.$cid.'.home'};
11282: if (!$chome) {
11283: $chome=&homeserver($cnum,$cdom);
11284: }
11285: if (!$chome) { return 'unknown_course'; }
11286: # Make sure the user exists
11287: my $uhome=&homeserver($uname,$udom);
11288: if (($uhome eq '') || ($uhome eq 'no_host')) {
11289: return 'error: no such user';
11290: }
11291: # Get student data if we were not given enough information
11292: if (!defined($first) || $first eq '' ||
11293: !defined($last) || $last eq '' ||
11294: !defined($uid) || $uid eq '' ||
11295: !defined($middle) || $middle eq '' ||
11296: !defined($gene) || $gene eq '') {
11297: # They did not supply us with enough data to enroll the student, so
11298: # we need to pick up more information.
11299: my %tmp = &get('environment',
11300: ['firstname','middlename','lastname', 'generation','id']
11301: ,$udom,$uname);
11302:
11303: #foreach my $key (keys(%tmp)) {
11304: # &logthis("key $key = ".$tmp{$key});
11305: #}
11306: $first = $tmp{'firstname'} if (!defined($first) || $first eq '');
11307: $middle = $tmp{'middlename'} if (!defined($middle) || $middle eq '');
11308: $last = $tmp{'lastname'} if (!defined($last) || $last eq '');
11309: $gene = $tmp{'generation'} if (!defined($gene) || $gene eq '');
11310: $uid = $tmp{'id'} if (!defined($uid) || $uid eq '');
11311: }
11312: my $fullname = &format_name($first,$middle,$last,$gene,'lastname');
11313: my $user = "$uname:$udom";
11314: my %old_entry = &get('classlist',[$user],$cdom,$cnum);
11315: my $reply=cput('classlist',
11316: {$user =>
11317: join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype,$credits,$instsec) },
11318: $cdom,$cnum);
11319: if (($reply eq 'ok') || ($reply eq 'delayed')) {
11320: &devalidate_getsection_cache($udom,$uname,$cid);
11321: } else {
11322: return 'error: '.$reply;
11323: }
11324: # Add student role to user
11325: my $uurl='/'.$cid;
11326: $uurl=~s/\_/\//g;
11327: if ($usec) {
11328: $uurl.='/'.$usec;
11329: }
11330: my $result = &assignrole($udom,$uname,$uurl,'st',$end,$start,undef,
11331: $selfenroll,$context,$othdomby,$requester);
11332: if ($result ne 'ok') {
11333: if ($old_entry{$user} ne '') {
11334: $reply = &cput('classlist',\%old_entry,$cdom,$cnum);
11335: } else {
11336: $reply = &del('classlist',[$user],$cdom,$cnum);
11337: }
11338: }
11339: return $result;
11340: }
11341:
11342: sub format_name {
11343: my ($firstname,$middlename,$lastname,$generation,$first)=@_;
11344: my $name;
11345: if ($first ne 'lastname') {
11346: $name=$firstname.' '.$middlename.' '.$lastname.' '.$generation;
11347: } else {
11348: if ($lastname=~/\S/) {
11349: $name.= $lastname.' '.$generation.', '.$firstname.' '.$middlename;
11350: $name=~s/\s+,/,/;
11351: } else {
11352: $name.= $firstname.' '.$middlename.' '.$generation;
11353: }
11354: }
11355: $name=~s/^\s+//;
11356: $name=~s/\s+$//;
11357: $name=~s/\s+/ /g;
11358: return $name;
11359: }
11360:
11361: # ------------------------------------------------- Write to course preferences
11362:
11363: sub writecoursepref {
11364: my ($courseid,%prefs)=@_;
11365: $courseid=~s/^\///;
11366: $courseid=~s/\_/\//g;
11367: my ($cdomain,$cnum)=split(/\//,$courseid);
11368: my $chome=homeserver($cnum,$cdomain);
11369: if (($chome eq '') || ($chome eq 'no_host')) {
11370: return 'error: no such course';
11371: }
11372: my $cstring='';
11373: foreach my $pref (keys(%prefs)) {
11374: $cstring.=&escape($pref).'='.&escape($prefs{$pref}).'&';
11375: }
11376: $cstring=~s/\&$//;
11377: return reply('put:'.$cdomain.':'.$cnum.':environment:'.$cstring,$chome);
11378: }
11379:
11380: # ---------------------------------------------------------- Make/modify course
11381:
11382: sub createcourse {
11383: my ($udom,$description,$url,$course_server,$nonstandard,$inst_code,
11384: $course_owner,$crstype,$cnum,$context,$category,$callercontext)=@_;
11385: $url=&declutter($url);
11386: my $cid='';
11387: if ($context eq 'requestcourses') {
11388: my $can_create = 0;
11389: my ($ownername,$ownerdom) = split(':',$course_owner);
11390: if ($udom eq $ownerdom) {
11391: my $reload;
11392: if (($callercontext eq 'auto') &&
11393: ($ownerdom eq $env{'user.domain'}) && ($ownername eq $env{'user.name'})) {
11394: $reload = 'reload';
11395: }
11396: if (&usertools_access($ownername,$ownerdom,$category,$reload,
11397: $context)) {
11398: $can_create = 1;
11399: }
11400: } else {
11401: my %userenv = &userenvironment($ownerdom,$ownername,'reqcrsotherdom.'.
11402: $category);
11403: if ($userenv{'reqcrsotherdom.'.$category} ne '') {
11404: my @curr = split(',',$userenv{'reqcrsotherdom.'.$category});
11405: if (@curr > 0) {
11406: my @options = qw(approval validate autolimit);
11407: my $optregex = join('|',@options);
11408: if (grep(/^\Q$udom\E:($optregex)(=?\d*)$/,@curr)) {
11409: $can_create = 1;
11410: }
11411: }
11412: }
11413: }
11414: if ($can_create) {
11415: unless ($ownername eq $env{'user.name'} && $ownerdom eq $env{'user.domain'}) {
11416: unless (&allowed('ccc',$udom)) {
11417: return 'refused';
11418: }
11419: }
11420: } else {
11421: return 'refused';
11422: }
11423: } elsif (!&allowed('ccc',$udom)) {
11424: return 'refused';
11425: }
11426: # --------------------------------------------------------------- Get Unique ID
11427: my $uname;
11428: if ($cnum =~ /^$match_courseid$/) {
11429: my $chome=&homeserver($cnum,$udom,'true');
11430: if (($chome eq '') || ($chome eq 'no_host')) {
11431: $uname = $cnum;
11432: } else {
11433: $uname = &generate_coursenum($udom,$crstype);
11434: }
11435: } else {
11436: $uname = &generate_coursenum($udom,$crstype);
11437: }
11438: return $uname if ($uname =~ /^error/);
11439: # -------------------------------------------------- Check supplied server name
11440: if (!defined($course_server)) {
11441: if (defined(&domain($udom,'primary'))) {
11442: $course_server = &domain($udom,'primary');
11443: } else {
11444: $course_server = $env{'user.home'};
11445: }
11446: }
11447: my %host_servers =
11448: &get_servers($udom,'library');
11449: unless ($host_servers{$course_server}) {
11450: return 'error: invalid home server for course: '.$course_server;
11451: }
11452: # ------------------------------------------------------------- Make the course
11453: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':none::',
11454: $course_server);
11455: unless ($reply eq 'ok') { return 'error: '.$reply; }
11456: my $uhome=&homeserver($uname,$udom,'true');
11457: if (($uhome eq '') || ($uhome eq 'no_host')) {
11458: return 'error: no such course';
11459: }
11460: # ----------------------------------------------------------------- Course made
11461: # log existence
11462: my $now = time;
11463: my $newcourse = {
11464: $udom.'_'.$uname => {
11465: description => $description,
11466: inst_code => $inst_code,
11467: owner => $course_owner,
11468: type => $crstype,
11469: creator => $env{'user.name'}.':'.
11470: $env{'user.domain'},
11471: created => $now,
11472: context => $context,
11473: },
11474: };
11475: &courseidput($udom,$newcourse,$uhome,'notime');
11476: # set toplevel url
11477: my $topurl=$url;
11478: unless ($nonstandard) {
11479: # ------------------------------------------ For standard courses, make top url
11480: my $mapurl=&clutter($url);
11481: if ($mapurl eq '/res/') { $mapurl=''; }
11482: $env{'form.initmap'}=(<<ENDINITMAP);
11483: <map>
11484: <resource id="1" type="start"></resource>
11485: <resource id="2" src="$mapurl"></resource>
11486: <resource id="3" type="finish"></resource>
11487: <link index="1" from="1" to="2"></link>
11488: <link index="2" from="2" to="3"></link>
11489: </map>
11490: ENDINITMAP
11491: $topurl=&declutter(
11492: &finishuserfileupload($uname,$udom,'initmap','default.sequence')
11493: );
11494: }
11495: # ----------------------------------------------------------- Write preferences
11496: &writecoursepref($udom.'_'.$uname,
11497: ('description' => $description,
11498: 'url' => $topurl,
11499: 'internal.creator' => $env{'user.name'}.':'.
11500: $env{'user.domain'},
11501: 'internal.created' => $now,
11502: 'internal.creationcontext' => $context)
11503: );
11504: return '/'.$udom.'/'.$uname;
11505: }
11506:
11507: # ------------------------------------------------------------------- Create ID
11508: sub generate_coursenum {
11509: my ($udom,$crstype) = @_;
11510: my $domdesc = &domain($udom);
11511: return 'error: invalid domain' if ($domdesc eq '');
11512: my $first;
11513: if ($crstype eq 'Community') {
11514: $first = '0';
11515: } else {
11516: $first = int(1+rand(9));
11517: }
11518: my $uname=$first.
11519: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
11520: substr($$.time,0,5).unpack("H8",pack("I32",time)).
11521: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
11522: # ----------------------------------------------- Make sure that does not exist
11523: my $uhome=&homeserver($uname,$udom,'true');
11524: unless (($uhome eq '') || ($uhome eq 'no_host')) {
11525: if ($crstype eq 'Community') {
11526: $first = '0';
11527: } else {
11528: $first = int(1+rand(9));
11529: }
11530: $uname=$first.
11531: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
11532: substr($$.time,0,5).unpack("H8",pack("I32",time)).
11533: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
11534: $uhome=&homeserver($uname,$udom,'true');
11535: unless (($uhome eq '') || ($uhome eq 'no_host')) {
11536: return 'error: unable to generate unique course-ID';
11537: }
11538: }
11539: return $uname;
11540: }
11541:
11542: sub is_course {
11543: my ($cdom, $cnum) = scalar(@_) == 1 ?
11544: ($_[0] =~ /^($match_domain)_($match_courseid)$/) : @_;
11545:
11546: return unless (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/));
11547: my $uhome=&homeserver($cnum,$cdom);
11548: my $iscourse;
11549: if (grep { $_ eq $uhome } current_machine_ids()) {
11550: $iscourse = &LONCAPA::Lond::is_course($cdom,$cnum);
11551: } else {
11552: my $hashid = $cdom.':'.$cnum;
11553: ($iscourse,my $cached) = &is_cached_new('iscourse',$hashid);
11554: unless (defined($cached)) {
11555: my %courses = &courseiddump($cdom, '.', 1, '.', '.',
11556: $cnum,undef,undef,'.');
11557: $iscourse = 0;
11558: if (exists($courses{$cdom.'_'.$cnum})) {
11559: $iscourse = 1;
11560: }
11561: &do_cache_new('iscourse',$hashid,$iscourse,3600);
11562: }
11563: }
11564: return unless ($iscourse);
11565: return wantarray ? ($cdom, $cnum) : $cdom.'_'.$cnum;
11566: }
11567:
11568: sub store_userdata {
11569: my ($storehash,$datakey,$namespace,$udom,$uname) = @_;
11570: my $result;
11571: if ($datakey ne '') {
11572: if (ref($storehash) eq 'HASH') {
11573: if ($udom eq '' || $uname eq '') {
11574: $udom = $env{'user.domain'};
11575: $uname = $env{'user.name'};
11576: }
11577: my $uhome=&homeserver($uname,$udom);
11578: if (($uhome eq '') || ($uhome eq 'no_host')) {
11579: $result = 'error: no_host';
11580: } else {
11581: $storehash->{'ip'} = &get_requestor_ip();
11582: $storehash->{'host'} = $perlvar{'lonHostID'};
11583:
11584: my $namevalue='';
11585: foreach my $key (keys(%{$storehash})) {
11586: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
11587: }
11588: $namevalue=~s/\&$//;
11589: unless ($namespace eq 'courserequests') {
11590: $datakey = &escape($datakey);
11591: }
11592: $result = &reply("store:$udom:$uname:$namespace:$datakey:".
11593: $namevalue,$uhome);
11594: }
11595: } else {
11596: $result = 'error: data to store was not a hash reference';
11597: }
11598: } else {
11599: $result= 'error: invalid requestkey';
11600: }
11601: return $result;
11602: }
11603:
11604: # ---------------------------------------------------------- Assign Custom Role
11605:
11606: sub assigncustomrole {
11607: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start,$deleteflag,
11608: $selfenroll,$context,$othdomby,$requester)=@_;
11609: return &assignrole($udom,$uname,$url,'cr/'.$rdom.'/'.$rnam.'/'.$rolename,
11610: $end,$start,$deleteflag,$selfenroll,$context,$othdomby,
11611: $requester);
11612: }
11613:
11614: # ----------------------------------------------------------------- Revoke Role
11615:
11616: sub revokerole {
11617: my ($udom,$uname,$url,$role,$deleteflag,$selfenroll,$context)=@_;
11618: my $now=time;
11619: return &assignrole($udom,$uname,$url,$role,$now,undef,$deleteflag,$selfenroll,$context);
11620: }
11621:
11622: # ---------------------------------------------------------- Revoke Custom Role
11623:
11624: sub revokecustomrole {
11625: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$deleteflag,$selfenroll,$context)=@_;
11626: my $now=time;
11627: return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now,
11628: $deleteflag,$selfenroll,$context);
11629: }
11630:
11631: # ------------------------------------------------------------ Disk usage
11632: sub diskusage {
11633: my ($udom,$uname,$directorypath,$getpropath)=@_;
11634: $directorypath =~ s/\/$//;
11635: my $listing=&reply('du2:'.&escape($directorypath).':'
11636: .&escape($getpropath).':'.&escape($uname).':'
11637: .&escape($udom),homeserver($uname,$udom));
11638: if ($listing eq 'unknown_cmd') {
11639: if ($getpropath) {
11640: $directorypath = &propath($udom,$uname).'/'.$directorypath;
11641: }
11642: $listing = &reply('du:'.$directorypath,homeserver($uname,$udom));
11643: }
11644: return $listing;
11645: }
11646:
11647: sub is_locked {
11648: my ($file_name, $domain, $user, $which) = @_;
11649: my @check;
11650: my $is_locked;
11651: push (@check,$file_name);
11652: my %locked = &get('file_permissions',\@check,
11653: $env{'user.domain'},$env{'user.name'});
11654: my ($tmp)=keys(%locked);
11655: if ($tmp=~/^error:/) { undef(%locked); }
11656:
11657: if (ref($locked{$file_name}) eq 'ARRAY') {
11658: $is_locked = 'false';
11659: foreach my $entry (@{$locked{$file_name}}) {
11660: if (ref($entry) eq 'ARRAY') {
11661: $is_locked = 'true';
11662: if (ref($which) eq 'ARRAY') {
11663: push(@{$which},$entry);
11664: } else {
11665: last;
11666: }
11667: }
11668: }
11669: } else {
11670: $is_locked = 'false';
11671: }
11672: return $is_locked;
11673: }
11674:
11675: sub declutter_portfile {
11676: my ($file) = @_;
11677: $file =~ s{^(/portfolio/|portfolio/)}{/};
11678: return $file;
11679: }
11680:
11681: # ------------------------------------------------------------- Mark as Read Only
11682:
11683: sub mark_as_readonly {
11684: my ($domain,$user,$files,$what) = @_;
11685: my %current_permissions = &dump('file_permissions',$domain,$user);
11686: my ($tmp)=keys(%current_permissions);
11687: if ($tmp=~/^error:/) { undef(%current_permissions); }
11688: foreach my $file (@{$files}) {
11689: $file = &declutter_portfile($file);
11690: push(@{$current_permissions{$file}},$what);
11691: }
11692: &put('file_permissions',\%current_permissions,$domain,$user);
11693: return;
11694: }
11695:
11696: # ------------------------------------------------------------Save Selected Files
11697:
11698: sub save_selected_files {
11699: my ($user, $path, @files) = @_;
11700: my $filename = $user."savedfiles";
11701: my @other_files = &files_not_in_path($user, $path);
11702: open (OUT,'>',LONCAPA::tempdir().$filename);
11703: foreach my $file (@files) {
11704: print (OUT $env{'form.currentpath'}.$file."\n");
11705: }
11706: foreach my $file (@other_files) {
11707: print (OUT $file."\n");
11708: }
11709: close (OUT);
11710: return 'ok';
11711: }
11712:
11713: sub clear_selected_files {
11714: my ($user) = @_;
11715: my $filename = $user."savedfiles";
11716: open (OUT,'>',LONCAPA::tempdir().$filename);
11717: print (OUT undef);
11718: close (OUT);
11719: return ("ok");
11720: }
11721:
11722: sub files_in_path {
11723: my ($user, $path) = @_;
11724: my $filename = $user."savedfiles";
11725: my %return_files;
11726: open (IN,'<',LONCAPA::tempdir().$filename);
11727: while (my $line_in = <IN>) {
11728: chomp ($line_in);
11729: my @paths_and_file = split (m!/!, $line_in);
11730: my $file_part = pop (@paths_and_file);
11731: my $path_part = join ('/', @paths_and_file);
11732: $path_part.='/';
11733: my $path_and_file = $path_part.$file_part;
11734: if ($path_part eq $path) {
11735: $return_files{$file_part}= 'selected';
11736: }
11737: }
11738: close (IN);
11739: return (\%return_files);
11740: }
11741:
11742: # called in portfolio select mode, to show files selected NOT in current directory
11743: sub files_not_in_path {
11744: my ($user, $path) = @_;
11745: my $filename = $user."savedfiles";
11746: my @return_files;
11747: my $path_part;
11748: open(IN, '<',LONCAPA::tempdir().$filename);
11749: while (my $line = <IN>) {
11750: #ok, I know it's clunky, but I want it to work
11751: my @paths_and_file = split(m|/|, $line);
11752: my $file_part = pop(@paths_and_file);
11753: chomp($file_part);
11754: my $path_part = join('/', @paths_and_file);
11755: $path_part .= '/';
11756: my $path_and_file = $path_part.$file_part;
11757: if ($path_part ne $path) {
11758: push(@return_files, ($path_and_file));
11759: }
11760: }
11761: close(OUT);
11762: return (@return_files);
11763: }
11764:
11765: #------------------------------Submitted/Handedback Portfolio Files Versioning
11766:
11767: sub portfiles_versioning {
11768: my ($symb,$domain,$stu_name,$portfiles,$versioned_portfiles) = @_;
11769: my $portfolio_root = '/userfiles/portfolio';
11770: return unless ((ref($portfiles) eq 'ARRAY') && (ref($versioned_portfiles) eq 'ARRAY'));
11771: foreach my $file (@{$portfiles}) {
11772: &unmark_as_readonly($domain,$stu_name,[$symb,$env{'request.course.id'}],$file);
11773: my ($directory,$answer_file) =($file =~ /^(.*?)([^\/]*)$/);
11774: my ($answer_name,$answer_ver,$answer_ext) = &file_name_version_ext($answer_file);
11775: my $getpropath = 1;
11776: my ($dir_list,$listerror) = &dirlist($portfolio_root.$directory,$domain,
11777: $stu_name,$getpropath);
11778: my $version = &get_next_version($answer_name,$answer_ext,$dir_list);
11779: my $new_answer =
11780: &version_selected_portfile($domain,$stu_name,$directory,$answer_file,$version);
11781: if ($new_answer ne 'problem getting file') {
11782: push(@{$versioned_portfiles}, $directory.$new_answer);
11783: &mark_as_readonly($domain,$stu_name,[$directory.$new_answer],
11784: [$symb,$env{'request.course.id'},'graded']);
11785: }
11786: }
11787: }
11788:
11789: sub get_next_version {
11790: my ($answer_name, $answer_ext, $dir_list) = @_;
11791: my $version;
11792: if (ref($dir_list) eq 'ARRAY') {
11793: foreach my $row (@{$dir_list}) {
11794: my ($file) = split(/\&/,$row,2);
11795: my ($file_name,$file_version,$file_ext) =
11796: &file_name_version_ext($file);
11797: if (($file_name eq $answer_name) &&
11798: ($file_ext eq $answer_ext)) {
11799: # gets here if filename and extension match,
11800: # regardless of version
11801: if ($file_version ne '') {
11802: # a versioned file is found so save it for later
11803: if ($file_version > $version) {
11804: $version = $file_version;
11805: }
11806: }
11807: }
11808: }
11809: }
11810: $version ++;
11811: return($version);
11812: }
11813:
11814: sub version_selected_portfile {
11815: my ($domain,$stu_name,$directory,$file_name,$version) = @_;
11816: my ($answer_name,$answer_ver,$answer_ext) =
11817: &file_name_version_ext($file_name);
11818: my $new_answer;
11819: $env{'form.copy'} =
11820: &getfile("/uploaded/$domain/$stu_name/portfolio$directory$file_name");
11821: if($env{'form.copy'} eq '-1') {
11822: $new_answer = 'problem getting file';
11823: } else {
11824: $new_answer = $answer_name.'.'.$version.'.'.$answer_ext;
11825: my $copy_result =
11826: &finishuserfileupload($stu_name,$domain,'copy',
11827: '/portfolio'.$directory.$new_answer);
11828: }
11829: undef($env{'form.copy'});
11830: return ($new_answer);
11831: }
11832:
11833: sub file_name_version_ext {
11834: my ($file)=@_;
11835: my @file_parts = split(/\./, $file);
11836: my ($name,$version,$ext);
11837: if (@file_parts > 1) {
11838: $ext=pop(@file_parts);
11839: if (@file_parts > 1 && $file_parts[-1] =~ /^\d+$/) {
11840: $version=pop(@file_parts);
11841: }
11842: $name=join('.',@file_parts);
11843: } else {
11844: $name=join('.',@file_parts);
11845: }
11846: return($name,$version,$ext);
11847: }
11848:
11849: #----------------------------------------------Get portfolio file permissions
11850:
11851: sub get_portfile_permissions {
11852: my ($domain,$user) = @_;
11853: my %current_permissions = &dump('file_permissions',$domain,$user);
11854: my ($tmp)=keys(%current_permissions);
11855: if ($tmp=~/^error:/) { undef(%current_permissions); }
11856: return \%current_permissions;
11857: }
11858:
11859: #---------------------------------------------Get portfolio file access controls
11860:
11861: sub get_access_controls {
11862: my ($current_permissions,$group,$file) = @_;
11863: my %access;
11864: my $real_file = $file;
11865: $file =~ s/\.meta$//;
11866: if (defined($file)) {
11867: if (ref($$current_permissions{$file."\0".'accesscontrol'}) eq 'HASH') {
11868: foreach my $control (keys(%{$$current_permissions{$file."\0".'accesscontrol'}})) {
11869: $access{$real_file}{$control} = $$current_permissions{$file."\0".$control};
11870: }
11871: }
11872: } else {
11873: foreach my $key (keys(%{$current_permissions})) {
11874: if ($key =~ /\0accesscontrol$/) {
11875: if (defined($group)) {
11876: if ($key !~ m-^\Q$group\E/-) {
11877: next;
11878: }
11879: }
11880: my ($fullpath) = split(/\0/,$key);
11881: if (ref($$current_permissions{$key}) eq 'HASH') {
11882: foreach my $control (keys(%{$$current_permissions{$key}})) {
11883: $access{$fullpath}{$control}=$$current_permissions{$fullpath."\0".$control};
11884: }
11885: }
11886: }
11887: }
11888: }
11889: return %access;
11890: }
11891:
11892: sub modify_access_controls {
11893: my ($file_name,$changes,$domain,$user)=@_;
11894: my ($outcome,$deloutcome);
11895: my %store_permissions;
11896: my %new_values;
11897: my %new_control;
11898: my %translation;
11899: my @deletions = ();
11900: my $now = time;
11901: if (exists($$changes{'activate'})) {
11902: if (ref($$changes{'activate'}) eq 'HASH') {
11903: my @newitems = sort(keys(%{$$changes{'activate'}}));
11904: my $numnew = scalar(@newitems);
11905: for (my $i=0; $i<$numnew; $i++) {
11906: my $newkey = $newitems[$i];
11907: my $newid = &Apache::loncommon::get_cgi_id();
11908: if ($newkey =~ /^\d+:/) {
11909: $newkey =~ s/^(\d+)/$newid/;
11910: $translation{$1} = $newid;
11911: } elsif ($newkey =~ /^\d+_\d+_\d+:/) {
11912: $newkey =~ s/^(\d+_\d+_\d+)/$newid/;
11913: $translation{$1} = $newid;
11914: }
11915: $new_values{$file_name."\0".$newkey} =
11916: $$changes{'activate'}{$newitems[$i]};
11917: $new_control{$newkey} = $now;
11918: }
11919: }
11920: }
11921: my %todelete;
11922: my %changed_items;
11923: foreach my $action ('delete','update') {
11924: if (exists($$changes{$action})) {
11925: if (ref($$changes{$action}) eq 'HASH') {
11926: foreach my $key (keys(%{$$changes{$action}})) {
11927: my ($itemnum) = ($key =~ /^([^:]+):/);
11928: if ($action eq 'delete') {
11929: $todelete{$itemnum} = 1;
11930: } else {
11931: $changed_items{$itemnum} = $key;
11932: }
11933: }
11934: }
11935: }
11936: }
11937: # get lock on access controls for file.
11938: my $lockhash = {
11939: $file_name."\0".'locked_access_records' => $env{'user.name'}.
11940: ':'.$env{'user.domain'},
11941: };
11942: my $tries = 0;
11943: my $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
11944:
11945: while (($gotlock ne 'ok') && $tries < 10) {
11946: $tries ++;
11947: sleep(0.1);
11948: $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
11949: }
11950: if ($gotlock eq 'ok') {
11951: my %curr_permissions = &dump('file_permissions',$domain,$user,$file_name);
11952: my ($tmp)=keys(%curr_permissions);
11953: if ($tmp=~/^error:/) { undef(%curr_permissions); }
11954: if (exists($curr_permissions{$file_name."\0".'accesscontrol'})) {
11955: my $curr_controls = $curr_permissions{$file_name."\0".'accesscontrol'};
11956: if (ref($curr_controls) eq 'HASH') {
11957: foreach my $control_item (keys(%{$curr_controls})) {
11958: my ($itemnum) = ($control_item =~ /^([^:]+):/);
11959: if (defined($todelete{$itemnum})) {
11960: push(@deletions,$file_name."\0".$control_item);
11961: } else {
11962: if (defined($changed_items{$itemnum})) {
11963: $new_control{$changed_items{$itemnum}} = $now;
11964: push(@deletions,$file_name."\0".$control_item);
11965: $new_values{$file_name."\0".$changed_items{$itemnum}} = $$changes{'update'}{$changed_items{$itemnum}};
11966: } else {
11967: $new_control{$control_item} = $$curr_controls{$control_item};
11968: }
11969: }
11970: }
11971: }
11972: }
11973: my ($group);
11974: if (&is_course($domain,$user)) {
11975: ($group,my $file) = split(/\//,$file_name,2);
11976: }
11977: $deloutcome = &del('file_permissions',\@deletions,$domain,$user);
11978: $new_values{$file_name."\0".'accesscontrol'} = \%new_control;
11979: $outcome = &put('file_permissions',\%new_values,$domain,$user);
11980: # remove lock
11981: my @del_lock = ($file_name."\0".'locked_access_records');
11982: my $dellockoutcome = &del('file_permissions',\@del_lock,$domain,$user);
11983: my $sqlresult =
11984: &update_portfolio_table($user,$domain,$file_name,'portfolio_access',
11985: $group);
11986: } else {
11987: $outcome = "error: could not obtain lockfile\n";
11988: }
11989: return ($outcome,$deloutcome,\%new_values,\%translation);
11990: }
11991:
11992: sub make_public_indefinitely {
11993: my (@requrl) = @_;
11994: return &automated_portfile_access('public',\@requrl);
11995: }
11996:
11997: sub automated_portfile_access {
11998: my ($accesstype,$addsref,$delsref,$info) = @_;
11999: unless (($accesstype eq 'public') || ($accesstype eq 'ip')) {
12000: return 'invalid';
12001: }
12002: my %urls;
12003: if (ref($addsref) eq 'ARRAY') {
12004: foreach my $requrl (@{$addsref}) {
12005: if (&is_portfolio_url($requrl)) {
12006: unless (exists($urls{$requrl})) {
12007: $urls{$requrl} = 'add';
12008: }
12009: }
12010: }
12011: }
12012: if (ref($delsref) eq 'ARRAY') {
12013: foreach my $requrl (@{$delsref}) {
12014: if (&is_portfolio_url($requrl)) {
12015: unless (exists($urls{$requrl})) {
12016: $urls{$requrl} = 'delete';
12017: }
12018: }
12019: }
12020: }
12021: unless (keys(%urls)) {
12022: return 'invalid';
12023: }
12024: my $ip;
12025: if ($accesstype eq 'ip') {
12026: if (ref($info) eq 'HASH') {
12027: if ($info->{'ip'} ne '') {
12028: $ip = $info->{'ip'};
12029: }
12030: }
12031: if ($ip eq '') {
12032: return 'invalid';
12033: }
12034: }
12035: my $errors;
12036: my $now = time;
12037: my %current_perms;
12038: foreach my $requrl (sort(keys(%urls))) {
12039: my $action;
12040: if ($urls{$requrl} eq 'add') {
12041: $action = 'activate';
12042: } else {
12043: $action = 'none';
12044: }
12045: my $aclnum = 0;
12046: my (undef,$udom,$unum,$file_name,$group) =
12047: &parse_portfolio_url($requrl);
12048: unless (exists($current_perms{$unum.':'.$udom})) {
12049: $current_perms{$unum.':'.$udom} = &get_portfile_permissions($udom,$unum);
12050: }
12051: my %access_controls = &get_access_controls($current_perms{$unum.':'.$udom},
12052: $group,$file_name);
12053: foreach my $key (keys(%{$access_controls{$file_name}})) {
12054: my ($num,$scope,$end,$start) =
12055: ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
12056: if ($scope eq $accesstype) {
12057: if (($start <= $now) && ($end == 0)) {
12058: if ($accesstype eq 'ip') {
12059: if (ref($access_controls{$file_name}{$key}) eq 'HASH') {
12060: if (ref($access_controls{$file_name}{$key}{'ip'}) eq 'ARRAY') {
12061: if (grep(/^\Q$ip\E$/,@{$access_controls{$file_name}{$key}{'ip'}})) {
12062: if ($urls{$requrl} eq 'add') {
12063: $action = 'none';
12064: last;
12065: } else {
12066: $action = 'delete';
12067: $aclnum = $num;
12068: last;
12069: }
12070: }
12071: }
12072: }
12073: } elsif ($accesstype eq 'public') {
12074: if ($urls{$requrl} eq 'add') {
12075: $action = 'none';
12076: last;
12077: } else {
12078: $action = 'delete';
12079: $aclnum = $num;
12080: last;
12081: }
12082: }
12083: } elsif ($accesstype eq 'public') {
12084: $action = 'update';
12085: $aclnum = $num;
12086: last;
12087: }
12088: }
12089: }
12090: if ($action eq 'none') {
12091: next;
12092: } else {
12093: my %changes;
12094: my $newend = 0;
12095: my $newstart = $now;
12096: my $newkey = $aclnum.':'.$accesstype.'_'.$newend.'_'.$newstart;
12097: $changes{$action}{$newkey} = {
12098: type => $accesstype,
12099: time => {
12100: start => $newstart,
12101: end => $newend,
12102: },
12103: };
12104: if ($accesstype eq 'ip') {
12105: $changes{$action}{$newkey}{'ip'} = [$ip];
12106: }
12107: my ($outcome,$deloutcome,$new_values,$translation) =
12108: &modify_access_controls($file_name,\%changes,$udom,$unum);
12109: unless ($outcome eq 'ok') {
12110: $errors .= $outcome.' ';
12111: }
12112: }
12113: }
12114: if ($errors) {
12115: $errors =~ s/\s$//;
12116: return $errors;
12117: } else {
12118: return 'ok';
12119: }
12120: }
12121:
12122: #------------------------------------------------------Get Marked as Read Only
12123:
12124: sub get_marked_as_readonly {
12125: my ($domain,$user,$what,$group) = @_;
12126: my $current_permissions = &get_portfile_permissions($domain,$user);
12127: my @readonly_files;
12128: my $cmp1=$what;
12129: if (ref($what)) { $cmp1=join('',@{$what}) };
12130: while (my ($file_name,$value) = each(%{$current_permissions})) {
12131: if (defined($group)) {
12132: if ($file_name !~ m-^\Q$group\E/-) {
12133: next;
12134: }
12135: }
12136: if (ref($value) eq "ARRAY"){
12137: foreach my $stored_what (@{$value}) {
12138: my $cmp2=$stored_what;
12139: if (ref($stored_what) eq 'ARRAY') {
12140: $cmp2=join('',@{$stored_what});
12141: }
12142: if ($cmp1 eq $cmp2) {
12143: push(@readonly_files, $file_name);
12144: last;
12145: } elsif (!defined($what)) {
12146: push(@readonly_files, $file_name);
12147: last;
12148: }
12149: }
12150: }
12151: }
12152: return @readonly_files;
12153: }
12154: #-----------------------------------------------------------Get Marked as Read Only Hash
12155:
12156: sub get_marked_as_readonly_hash {
12157: my ($current_permissions,$group,$what) = @_;
12158: my %readonly_files;
12159: while (my ($file_name,$value) = each(%{$current_permissions})) {
12160: if (defined($group)) {
12161: if ($file_name !~ m-^\Q$group\E/-) {
12162: next;
12163: }
12164: }
12165: if (ref($value) eq "ARRAY"){
12166: foreach my $stored_what (@{$value}) {
12167: if (ref($stored_what) eq 'ARRAY') {
12168: foreach my $lock_descriptor(@{$stored_what}) {
12169: if ($lock_descriptor eq 'graded') {
12170: $readonly_files{$file_name} = 'graded';
12171: } elsif ($lock_descriptor eq 'handback') {
12172: $readonly_files{$file_name} = 'handback';
12173: } else {
12174: if (!exists($readonly_files{$file_name})) {
12175: $readonly_files{$file_name} = 'locked';
12176: }
12177: }
12178: }
12179: }
12180: }
12181: }
12182: }
12183: return %readonly_files;
12184: }
12185: # ------------------------------------------------------------ Unmark as Read Only
12186:
12187: sub unmark_as_readonly {
12188: # unmarks $file_name (if $file_name is defined), or all files locked by $what
12189: # for portfolio submissions, $what contains [$symb,$crsid]
12190: my ($domain,$user,$what,$file_name,$group) = @_;
12191: $file_name = &declutter_portfile($file_name);
12192: my $symb_crs = $what;
12193: if (ref($what)) { $symb_crs=join('',@$what); }
12194: my %current_permissions = &dump('file_permissions',$domain,$user,$group);
12195: my ($tmp)=keys(%current_permissions);
12196: if ($tmp=~/^error:/) { undef(%current_permissions); }
12197: my @readonly_files = &get_marked_as_readonly($domain,$user,$what,$group);
12198: foreach my $file (@readonly_files) {
12199: my $clean_file = &declutter_portfile($file);
12200: if (defined($file_name) && ($file_name ne $clean_file)) { next; }
12201: my $current_locks = $current_permissions{$file};
12202: my @new_locks;
12203: my @del_keys;
12204: if (ref($current_locks) eq "ARRAY"){
12205: foreach my $locker (@{$current_locks}) {
12206: my $compare=$locker;
12207: if (ref($locker) eq 'ARRAY') {
12208: $compare=join('',@{$locker});
12209: if ($compare ne $symb_crs) {
12210: push(@new_locks, $locker);
12211: }
12212: }
12213: }
12214: if (scalar(@new_locks) > 0) {
12215: $current_permissions{$file} = \@new_locks;
12216: } else {
12217: push(@del_keys, $file);
12218: &del('file_permissions',\@del_keys, $domain, $user);
12219: delete($current_permissions{$file});
12220: }
12221: }
12222: }
12223: &put('file_permissions',\%current_permissions,$domain,$user);
12224: return;
12225: }
12226:
12227: # ------------------------------------------------------------ Directory lister
12228:
12229: sub dirlist {
12230: my ($uri,$userdomain,$username,$getpropath,$getuserdir,$alternateRoot)=@_;
12231: $uri=~s/^\///;
12232: $uri=~s/\/$//;
12233: my ($udom, $uname);
12234: if ($getuserdir) {
12235: $udom = $userdomain;
12236: $uname = $username;
12237: } else {
12238: (undef,$udom,$uname)=split(/\//,$uri);
12239: if(defined($userdomain)) {
12240: $udom = $userdomain;
12241: }
12242: if(defined($username)) {
12243: $uname = $username;
12244: }
12245: }
12246: my ($dirRoot,$listing,@listing_results);
12247:
12248: $dirRoot = $perlvar{'lonDocRoot'};
12249: if (defined($getpropath)) {
12250: $dirRoot = &propath($udom,$uname);
12251: $dirRoot =~ s/\/$//;
12252: } elsif (defined($getuserdir)) {
12253: my $subdir=$uname.'__';
12254: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
12255: $dirRoot = $Apache::lonnet::perlvar{'lonUsersDir'}
12256: ."/$udom/$subdir/$uname";
12257: } elsif (defined($alternateRoot)) {
12258: $dirRoot = $alternateRoot;
12259: }
12260:
12261: if($udom) {
12262: if($uname) {
12263: my $uhome = &homeserver($uname,$udom);
12264: if ($uhome eq 'no_host') {
12265: return ([],'no_host');
12266: }
12267: $listing = &reply('ls3:'.&escape('/'.$uri).':'.$getpropath.':'
12268: .$getuserdir.':'.&escape($dirRoot)
12269: .':'.&escape($uname).':'.&escape($udom),$uhome);
12270: if ($listing eq 'unknown_cmd') {
12271: $listing = &reply('ls2:'.$dirRoot.'/'.$uri,$uhome);
12272: } else {
12273: @listing_results = map { &unescape($_); } split(/:/,$listing);
12274: }
12275: if ($listing eq 'unknown_cmd') {
12276: $listing = &reply('ls:'.$dirRoot.'/'.$uri,$uhome);
12277: @listing_results = split(/:/,$listing);
12278: } else {
12279: @listing_results = map { &unescape($_); } split(/:/,$listing);
12280: }
12281: if (($listing eq 'no_such_host') || ($listing eq 'con_lost') ||
12282: ($listing eq 'rejected') || ($listing eq 'refused') ||
12283: ($listing eq 'no_such_dir') || ($listing eq 'empty')) {
12284: return ([],$listing);
12285: } else {
12286: return (\@listing_results);
12287: }
12288: } elsif(!$alternateRoot) {
12289: my (%allusers,%listerror);
12290: my %servers = &get_servers($udom,'library');
12291: foreach my $tryserver (keys(%servers)) {
12292: $listing = &reply('ls3:'.&escape("/res/$udom").':::::'.
12293: &escape($udom),$tryserver);
12294: if ($listing eq 'unknown_cmd') {
12295: $listing = &reply('ls2:'.$perlvar{'lonDocRoot'}.'/res/'.
12296: $udom, $tryserver);
12297: } else {
12298: @listing_results = map { &unescape($_); } split(/:/,$listing);
12299: }
12300: if ($listing eq 'unknown_cmd') {
12301: $listing = &reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.
12302: $udom, $tryserver);
12303: @listing_results = split(/:/,$listing);
12304: } else {
12305: @listing_results =
12306: map { &unescape($_); } split(/:/,$listing);
12307: }
12308: if (($listing eq 'no_such_host') || ($listing eq 'con_lost') ||
12309: ($listing eq 'rejected') || ($listing eq 'refused') ||
12310: ($listing eq 'no_such_dir') || ($listing eq 'empty')) {
12311: $listerror{$tryserver} = $listing;
12312: } else {
12313: foreach my $line (@listing_results) {
12314: my ($entry) = split(/&/,$line,2);
12315: $allusers{$entry} = 1;
12316: }
12317: }
12318: }
12319: my @alluserslist=();
12320: foreach my $user (sort(keys(%allusers))) {
12321: push(@alluserslist,$user.'&user');
12322: }
12323:
12324: if (!%listerror) {
12325: # no errors
12326: return (\@alluserslist);
12327: } elsif (scalar(keys(%servers)) == 1) {
12328: # one library server, one error
12329: my ($key) = keys(%listerror);
12330: return (\@alluserslist, $listerror{$key});
12331: } elsif ( grep { $_ eq 'con_lost' } values(%listerror) ) {
12332: # con_lost indicates that we might miss data from at least one
12333: # library server
12334: return (\@alluserslist, 'con_lost');
12335: } else {
12336: # multiple library servers and no con_lost -> data should be
12337: # complete.
12338: return (\@alluserslist);
12339: }
12340:
12341: } else {
12342: return ([],'missing username');
12343: }
12344: } elsif(!defined($getpropath)) {
12345: my $path = $perlvar{'lonDocRoot'}.'/res/';
12346: my @all_domains = map { $path.$_.'/&domain'; } (sort(&all_domains()));
12347: return (\@all_domains);
12348: } else {
12349: return ([],'missing domain');
12350: }
12351: }
12352:
12353: # --------------------------------------------- GetFileTimestamp
12354: # This function utilizes dirlist and returns the date stamp for
12355: # when it was last modified. It will also return an error of -1
12356: # if an error occurs
12357:
12358: sub GetFileTimestamp {
12359: my ($studentDomain,$studentName,$filename,$getuserdir)=@_;
12360: $studentDomain = &LONCAPA::clean_domain($studentDomain);
12361: $studentName = &LONCAPA::clean_username($studentName);
12362: my ($fileref,$error) = &dirlist($filename,$studentDomain,$studentName,
12363: undef,$getuserdir);
12364: if (($error eq 'empty') || ($error eq 'no_such_dir')) {
12365: return -1;
12366: }
12367: if (ref($fileref) eq 'ARRAY') {
12368: my @stats = split('&',$fileref->[0]);
12369: # @stats contains first the filename, then the stat output
12370: return $stats[10]; # so this is 10 instead of 9.
12371: } else {
12372: return -1;
12373: }
12374: }
12375:
12376: sub stat_file {
12377: my ($uri) = @_;
12378: $uri = &clutter_with_no_wrapper($uri);
12379:
12380: my ($udom,$uname,$file);
12381: if ($uri =~ m-^/(uploaded|editupload)/-) {
12382: ($udom,$uname,$file) =
12383: ($uri =~ m-/(?:uploaded|editupload)/?($match_domain)/?($match_name)/?(.*)-);
12384: $file = 'userfiles/'.$file;
12385: }
12386: if ($uri =~ m-^/res/-) {
12387: ($udom,$uname) =
12388: ($uri =~ m-/(?:res)/?($match_domain)/?($match_username)/-);
12389: $file = $uri;
12390: }
12391:
12392: if (!$udom || !$uname || !$file) {
12393: # unable to handle the uri
12394: return ();
12395: }
12396: my $getpropath;
12397: if ($file =~ /^userfiles\//) {
12398: $getpropath = 1;
12399: }
12400: my ($listref,$error) = &dirlist($file,$udom,$uname,$getpropath);
12401: if (($error eq 'empty') || ($error eq 'no_such_dir')) {
12402: return ();
12403: } else {
12404: if (ref($listref) eq 'ARRAY') {
12405: my @stats = split('&',$listref->[0]);
12406: shift(@stats); #filename is first
12407: return @stats;
12408: }
12409: }
12410: return ();
12411: }
12412:
12413: # --------------------------------------------------------- recursedirs
12414: # Recursive function to traverse either a specific user's Authoring Space
12415: # or corresponding Published Resource Space, and populate the hash ref:
12416: # $dirhashref with URLs of all directories, and if $filehashref hash
12417: # ref arg is provided, the URLs of any files, excluding versioned, .meta,
12418: # or .rights files in resource space, and .meta, .save, .log, .bak and
12419: # .rights files in Authoring Space.
12420: #
12421: # Inputs:
12422: #
12423: # $is_home - true if current server is home server for user's space
12424: # $recurse - if true will also traverse subdirectories recursively
12425: # $include - reference to hash containing allowed file extensions. If provided,
12426: # files which do not have a matching extension will be ignored.
12427: # $exclude - reference to hash containing excluded file extensions. If provided,
12428: # files which have a matching extension will be ignored.
12429: # $nonemptydir - if true, will only populate $fileshashref hash entry for a particular
12430: # directory with first file found (with acceptable extension).
12431: # $addtopdir - if true, set $dirhashref->{'/'} = 1
12432: # $toppath - Top level directory (i.e., /res/$dom/$uname or /priv/$dom/$uname
12433: # $relpath - Current path (relative to top level).
12434: # $dirhashref - reference to hash to populate with URLs of directories (Required)
12435: # $filehashref - reference to hash to populate with URLs of files (Optional)
12436: #
12437: # Returns: nothing
12438: #
12439: # Side Effects: populates $dirhashref, and $filehashref (if provided).
12440: #
12441: # Currently used by interface/londocs.pm to create linked select boxes for
12442: # directory and filename to import a Course "Author" resource into a course, and
12443: # also to create linked select boxes for Authoring Space and Directory to choose
12444: # save location for creation of a new "standard" problem from the Course Editor.
12445: #
12446:
12447: sub recursedirs {
12448: my ($is_home,$recurse,$include,$exclude,$nonemptydir,$addtopdir,$toppath,$relpath,$dirhashref,$filehashref) = @_;
12449: return unless (ref($dirhashref) eq 'HASH');
12450: my $docroot = $perlvar{'lonDocRoot'};
12451: my $currpath = $docroot.$toppath;
12452: if ($relpath ne '') {
12453: $currpath .= "/$relpath";
12454: }
12455: my ($savefile,$checkinc,$checkexc);
12456: if (ref($filehashref)) {
12457: $savefile = 1;
12458: }
12459: if (ref($include) eq 'HASH') {
12460: $checkinc = 1;
12461: }
12462: if (ref($exclude) eq 'HASH') {
12463: $checkexc = 1;
12464: }
12465: if ($is_home) {
12466: if ((-e $currpath) && (opendir(my $dirh,$currpath))) {
12467: my $filecount = 0;
12468: foreach my $item (sort { lc($a) cmp lc($b) } grep(!/^\.+$/,readdir($dirh))) {
12469: next if ($item eq '');
12470: if (-d "$currpath/$item") {
12471: my $newpath;
12472: if ($relpath ne '') {
12473: $newpath = "$relpath/$item";
12474: } else {
12475: $newpath = $item;
12476: }
12477: $dirhashref->{&Apache::lonlocal::js_escape($newpath)} = 1;
12478: if ($recurse) {
12479: &recursedirs($is_home,$recurse,$include,$exclude,$nonemptydir,$addtopdir,$toppath,$newpath,$dirhashref,$filehashref);
12480: }
12481: } elsif (($savefile) || ($relpath eq '')) {
12482: next if ($nonemptydir && $filecount);
12483: if ($checkinc || $checkexc) {
12484: my ($extension) = ($item =~ /\.(\w+)$/);
12485: if ($checkinc) {
12486: next unless ($extension && $include->{$extension});
12487: }
12488: if ($checkexc) {
12489: next if ($extension && $exclude->{$extension});
12490: }
12491: }
12492: if (($relpath eq '') && (!exists($dirhashref->{'/'}))) {
12493: $dirhashref->{'/'} = 1;
12494: }
12495: if ($savefile) {
12496: if ($relpath eq '') {
12497: $filehashref->{'/'}{$item} = 1;
12498: } else {
12499: $filehashref->{&Apache::lonlocal::js_escape($relpath)}{$item} = 1;
12500: }
12501: }
12502: $filecount ++;
12503: }
12504: }
12505: closedir($dirh);
12506: }
12507: } else {
12508: my ($dirlistref,$listerror) =
12509: &dirlist($toppath.$relpath);
12510: my @dir_lines;
12511: my $dirptr=16384;
12512: if (ref($dirlistref) eq 'ARRAY') {
12513: my $filecount = 0;
12514: foreach my $dir_line (sort
12515: {
12516: my ($afile)=split('&',$a,2);
12517: my ($bfile)=split('&',$b,2);
12518: return (lc($afile) cmp lc($bfile));
12519: } (@{$dirlistref})) {
12520: my ($item,$dom,undef,$testdir,undef,undef,undef,undef,$size,undef,$mtime,undef,undef,undef,$obs,undef) =
12521: split(/\&/,$dir_line,16);
12522: $item =~ s/\s+$//;
12523: next if (($item =~ /^\.\.?$/) || ($obs));
12524: if ($dirptr&$testdir) {
12525: my $newpath;
12526: if ($relpath) {
12527: $newpath = "$relpath/$item";
12528: } else {
12529: $newpath = $item;
12530: }
12531: $dirhashref->{&Apache::lonlocal::js_escape($newpath)} = 1;
12532: if ($recurse) {
12533: &recursedirs($is_home,$recurse,$include,$exclude,$nonemptydir,$addtopdir,$toppath,$newpath,$dirhashref,$filehashref);
12534: }
12535: } elsif (($savefile) || ($relpath eq '')) {
12536: next if ($nonemptydir && $filecount);
12537: if ($checkinc || $checkexc) {
12538: my $extension;
12539: if ($checkinc) {
12540: next unless ($extension && $include->{$extension});
12541: }
12542: if ($checkexc) {
12543: next if ($extension && $exclude->{$extension});
12544: }
12545: }
12546: if (($relpath eq '') && (!exists($dirhashref->{'/'}))) {
12547: $dirhashref->{'/'} = 1;
12548: }
12549: if ($savefile) {
12550: if ($relpath eq '') {
12551: $filehashref->{'/'}{$item} = 1;
12552: } else {
12553: $filehashref->{&Apache::lonlocal::js_escape($relpath)}{$item} = 1;
12554: }
12555: }
12556: $filecount ++;
12557: }
12558: }
12559: }
12560: }
12561: if ($addtopdir) {
12562: if (($relpath eq '') && (!exists($dirhashref->{'/'}))) {
12563: $dirhashref->{'/'} = 1;
12564: }
12565: }
12566: return;
12567: }
12568:
12569: sub priv_exclude {
12570: return {
12571: meta => 1,
12572: save => 1,
12573: log => 1,
12574: bak => 1,
12575: rights => 1,
12576: DS_Store => 1,
12577: };
12578: }
12579:
12580: # -------------------------------------------------------- Value of a Condition
12581:
12582: # gets the value of a specific preevaluated condition
12583: # stored in the string $env{user.state.<cid>}
12584: # or looks up a condition reference in the bighash and if if hasn't
12585: # already been evaluated recurses into docondval to get the value of
12586: # the condition, then memoizing it to
12587: # $env{user.state.<cid>.<condition>}
12588: sub directcondval {
12589: my $number=shift;
12590: if (!defined($env{'user.state.'.$env{'request.course.id'}})) {
12591: &Apache::lonuserstate::evalstate();
12592: }
12593: if (exists($env{'user.state.'.$env{'request.course.id'}.".$number"})) {
12594: return $env{'user.state.'.$env{'request.course.id'}.".$number"};
12595: } elsif ($number =~ /^_/) {
12596: my $sub_condition;
12597: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
12598: &GDBM_READER(),0640)) {
12599: $sub_condition=$bighash{'conditions'.$number};
12600: untie(%bighash);
12601: }
12602: my $value = &docondval($sub_condition);
12603: &appenv({'user.state.'.$env{'request.course.id'}.".$number" => $value});
12604: return $value;
12605: }
12606: if ($env{'user.state.'.$env{'request.course.id'}}) {
12607: return substr($env{'user.state.'.$env{'request.course.id'}},$number,1);
12608: } else {
12609: return 2;
12610: }
12611: }
12612:
12613: # get the collection of conditions for this resource
12614: sub condval {
12615: my $condidx=shift;
12616: my $allpathcond='';
12617: foreach my $cond (split(/\|/,$condidx)) {
12618: if (defined($env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond})) {
12619: $allpathcond.=
12620: '('.$env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond}.')|';
12621: }
12622: }
12623: $allpathcond=~s/\|$//;
12624: return &docondval($allpathcond);
12625: }
12626:
12627: #evaluates an expression of conditions
12628: sub docondval {
12629: my ($allpathcond) = @_;
12630: my $result=0;
12631: if ($env{'request.course.id'}
12632: && defined($allpathcond)) {
12633: my $operand='|';
12634: my @stack;
12635: foreach my $chunk ($allpathcond=~/(\d+|_\d+\.\d+|\(|\)|\&|\|)/g) {
12636: if ($chunk eq '(') {
12637: push @stack,($operand,$result);
12638: } elsif ($chunk eq ')') {
12639: my $before=pop @stack;
12640: if (pop @stack eq '&') {
12641: $result=$result>$before?$before:$result;
12642: } else {
12643: $result=$result>$before?$result:$before;
12644: }
12645: } elsif (($chunk eq '&') || ($chunk eq '|')) {
12646: $operand=$chunk;
12647: } else {
12648: my $new=directcondval($chunk);
12649: if ($operand eq '&') {
12650: $result=$result>$new?$new:$result;
12651: } else {
12652: $result=$result>$new?$result:$new;
12653: }
12654: }
12655: }
12656: }
12657: return $result;
12658: }
12659:
12660: # ---------------------------------------------------- Devalidate courseresdata
12661:
12662: sub devalidatecourseresdata {
12663: my ($coursenum,$coursedomain)=@_;
12664: my $hashid=$coursenum.':'.$coursedomain;
12665: &devalidate_cache_new('courseres',$hashid);
12666: }
12667:
12668:
12669: # --------------------------------------------------- Course Resourcedata Query
12670: #
12671: # Parameters:
12672: # $coursenum - Number of the course.
12673: # $coursedomain - Domain at which the course was created.
12674: # Returns:
12675: # A hash of the course parameters along (I think) with timestamps
12676: # and version info.
12677:
12678: sub get_courseresdata {
12679: my ($coursenum,$coursedomain)=@_;
12680: my $coursehom=&homeserver($coursenum,$coursedomain);
12681: my $hashid=$coursenum.':'.$coursedomain;
12682: my ($result,$cached)=&is_cached_new('courseres',$hashid);
12683: my %dumpreply;
12684: unless (defined($cached)) {
12685: %dumpreply=&dump('resourcedata',$coursedomain,$coursenum);
12686: $result=\%dumpreply;
12687: my ($tmp) = keys(%dumpreply);
12688: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
12689: &do_cache_new('courseres',$hashid,$result,600);
12690: } elsif ($tmp =~ /^(con_lost|no_such_host)/) {
12691: return $tmp;
12692: } elsif ($tmp =~ /^(error)/) {
12693: $result=undef;
12694: &do_cache_new('courseres',$hashid,$result,600);
12695: }
12696: }
12697: return $result;
12698: }
12699:
12700: sub devalidateuserresdata {
12701: my ($uname,$udom)=@_;
12702: my $hashid="$udom:$uname";
12703: &devalidate_cache_new('userres',$hashid);
12704: }
12705:
12706: sub get_userresdata {
12707: my ($uname,$udom)=@_;
12708: #most student don\'t have any data set, check if there is some data
12709: if (&EXT_cache_status($udom,$uname)) { return undef; }
12710:
12711: my $hashid="$udom:$uname";
12712: my ($result,$cached)=&is_cached_new('userres',$hashid);
12713: if (!defined($cached)) {
12714: my %resourcedata=&dump('resourcedata',$udom,$uname);
12715: $result=\%resourcedata;
12716: &do_cache_new('userres',$hashid,$result,600);
12717: }
12718: my ($tmp)=keys(%$result);
12719: if (($tmp!~/^error\:/) && ($tmp!~/^con_lost/)) {
12720: return $result;
12721: }
12722: #error 2 occurs when the .db doesn't exist
12723: if ($tmp!~/error: 2 /) {
12724: if ((!defined($cached)) || ($tmp ne 'con_lost')) {
12725: &logthis("<font color=\"blue\">WARNING:".
12726: " Trying to get resource data for ".
12727: $uname." at ".$udom.": ".
12728: $tmp."</font>");
12729: }
12730: } elsif ($tmp=~/error: 2 /) {
12731: #&EXT_cache_set($udom,$uname);
12732: &do_cache_new('userres',$hashid,undef,600);
12733: undef($tmp); # not really an error so don't send it back
12734: }
12735: return $tmp;
12736: }
12737: #----------------------------------------------- resdata - return resource data
12738: # Purpose:
12739: # Return resource data for either users or for a course.
12740: # Parameters:
12741: # $name - Course/user name.
12742: # $domain - Name of the domain the user/course is registered on.
12743: # $type - Type of thing $name is (must be 'course' or 'user')
12744: # $mapp - decluttered URL of enclosing map
12745: # $recursed - Ref to scalar -- set to 1, if nested maps have been recursed.
12746: # $recurseup - Ref to array of map URLs, starting with map containing
12747: # $mapp up through hierarchy of nested maps to top level map.
12748: # $courseid - CourseID (first part of param identifier).
12749: # $modifier - Middle part of param identifier.
12750: # $what - Last part of param identifier.
12751: # @which - Array of names of resources desired.
12752: # Returns:
12753: # The value of the first reasource in @which that is found in the
12754: # resource hash.
12755: # Exceptional Conditions:
12756: # If the $type passed in is not valid (not the string 'course' or
12757: # 'user', an undefined reference is returned.
12758: # If none of the resources are found, an undef is returned
12759: sub resdata {
12760: my ($name,$domain,$type,$mapp,$recursed,$recurseup,$courseid,
12761: $modifier,$what,@which)=@_;
12762: my $result;
12763: if ($type eq 'course') {
12764: $result=&get_courseresdata($name,$domain);
12765: } elsif ($type eq 'user') {
12766: $result=&get_userresdata($name,$domain);
12767: }
12768: if (!ref($result)) { return $result; }
12769: foreach my $item (@which) {
12770: if ($item->[1] eq 'course') {
12771: if ((ref($recurseup) eq 'ARRAY') && (ref($recursed) eq 'SCALAR')) {
12772: unless ($$recursed) {
12773: @{$recurseup} = &get_map_hierarchy($mapp,$courseid);
12774: $$recursed = 1;
12775: }
12776: foreach my $item (@${recurseup}) {
12777: my $norecursechk=$courseid.$modifier.$item.'___(all).'.$what;
12778: last if (defined($result->{$norecursechk}));
12779: my $recursechk=$courseid.$modifier.$item.'___(rec).'.$what;
12780: if (defined($result->{$recursechk})) { return [$result->{$recursechk},'map']; }
12781: }
12782: }
12783: }
12784: if (defined($result->{$item->[0]})) {
12785: return [$result->{$item->[0]},$item->[1]];
12786: }
12787: }
12788: return undef;
12789: }
12790:
12791: sub get_domain_lti {
12792: my ($cdom,$context) = @_;
12793: my ($name,$cachename,%lti);
12794: if ($context eq 'consumer') {
12795: $name = 'ltitools';
12796: } elsif ($context eq 'provider') {
12797: $name = 'lti';
12798: } elsif ($context eq 'linkprot') {
12799: $name = 'ltisec';
12800: } else {
12801: return %lti;
12802: }
12803: if ($context eq 'linkprot') {
12804: $cachename = $context;
12805: } else {
12806: $cachename = $name;
12807: }
12808: my ($result,$cached)=&is_cached_new($cachename,$cdom);
12809: if (defined($cached)) {
12810: if (ref($result) eq 'HASH') {
12811: %lti = %{$result};
12812: }
12813: } else {
12814: my %domconfig = &get_dom('configuration',[$name],$cdom);
12815: if (ref($domconfig{$name}) eq 'HASH') {
12816: if ($context eq 'linkprot') {
12817: if (ref($domconfig{$name}{'linkprot'}) eq 'HASH') {
12818: %lti = %{$domconfig{$name}{'linkprot'}};
12819: }
12820: } else {
12821: %lti = %{$domconfig{$name}};
12822: }
12823: }
12824: my $cachetime = 24*60*60;
12825: &do_cache_new($cachename,$cdom,\%lti,$cachetime);
12826: }
12827: return %lti;
12828: }
12829:
12830: sub get_course_lti {
12831: my ($cnum,$cdom,$context) = @_;
12832: my ($name,$cachename,%lti);
12833: if ($context eq 'consumer') {
12834: $name = 'ltitools';
12835: $cachename = 'courseltitools';
12836: } elsif ($context eq 'provider') {
12837: $name = 'lti';
12838: $cachename = 'courselti';
12839: } else {
12840: return %lti;
12841: }
12842: my $hashid=$cdom.'_'.$cnum;
12843: my ($result,$cached)=&is_cached_new($cachename,$hashid);
12844: if (defined($cached)) {
12845: if (ref($result) eq 'HASH') {
12846: %lti = %{$result};
12847: }
12848: } else {
12849: %lti = &dump($name,$cdom,$cnum,undef,undef,undef,1);
12850: my $cachetime = 24*60*60;
12851: &do_cache_new($cachename,$hashid,\%lti,$cachetime);
12852: }
12853: return %lti;
12854: }
12855:
12856: sub courselti_itemid {
12857: my ($cnum,$cdom,$url,$method,$params,$context) = @_;
12858: my ($chome,$itemid);
12859: $chome = &homeserver($cnum,$cdom);
12860: return if ($chome eq 'no_host');
12861: if (ref($params) eq 'HASH') {
12862: my $rep;
12863: if (grep { $_ eq $chome } current_machine_ids()) {
12864: $rep = LONCAPA::Lond::crslti_itemid($cdom,$cnum,$url,$method,$params,$perlvar{'lonVersion'});
12865: } else {
12866: my $escurl = &escape($url);
12867: my $escmethod = &escape($method);
12868: my $items = &freeze_escape($params);
12869: $rep = &reply("encrypt:lti:$cdom:$cnum:$context:$escurl:$escmethod:$items",$chome);
12870: }
12871: unless (($rep=~/^(refused|rejected|error)/) || ($rep eq 'con_lost') ||
12872: ($rep eq 'unknown_cmd')) {
12873: $itemid = $rep;
12874: }
12875: }
12876: return $itemid;
12877: }
12878:
12879: sub domainlti_itemid {
12880: my ($cdom,$url,$method,$params,$context) = @_;
12881: my ($primary_id,$itemid);
12882: $primary_id = &domain($cdom,'primary');
12883: return if ($primary_id eq '');
12884: if (ref($params) eq 'HASH') {
12885: my $rep;
12886: if (grep { $_ eq $primary_id } current_machine_ids()) {
12887: $rep = LONCAPA::Lond::domlti_itemid($cdom,$context,$url,$method,$params,$perlvar{'lonVersion'});
12888: } else {
12889: my $cnum = '';
12890: my $escurl = &escape($url);
12891: my $escmethod = &escape($method);
12892: my $items = &freeze_escape($params);
12893: $rep = &reply("encrypt:lti:$cdom:$cnum:$context:$escurl:$escmethod:$items",$primary_id);
12894: }
12895: unless (($rep=~/^(refused|rejected|error)/) || ($rep eq 'con_lost') ||
12896: ($rep eq 'unknown_cmd')) {
12897: $itemid = $rep;
12898: }
12899: }
12900: return $itemid;
12901: }
12902:
12903: sub get_ltitools_id {
12904: my ($context,$cdom,$cnum,$title) = @_;
12905: my ($lockhash,$tries,$gotlock,$id,$error);
12906:
12907: # get lock on ltitools db
12908: $lockhash = {
12909: lock => $env{'user.name'}.
12910: ':'.$env{'user.domain'},
12911: };
12912: $tries = 0;
12913: if ($context eq 'domain') {
12914: $gotlock = &newput_dom('ltitools',$lockhash,$cdom);
12915: } else {
12916: $gotlock = &newput('ltitools',$lockhash,$cdom,$cnum);
12917: }
12918: while (($gotlock ne 'ok') && ($tries<10)) {
12919: $tries ++;
12920: sleep (0.1);
12921: if ($context eq 'domain') {
12922: $gotlock = &newput_dom('ltitools',$lockhash,$cdom);
12923: } else {
12924: $gotlock = &newput('ltitools',$lockhash,$cdom,$cnum);
12925: }
12926: }
12927: if ($gotlock eq 'ok') {
12928: my %currids;
12929: if ($context eq 'domain') {
12930: %currids = &dump_dom('ltitools',$cdom);
12931: } else {
12932: %currids = &dump('ltitools',$cdom,$cnum);
12933: }
12934: if ($currids{'lock'}) {
12935: delete($currids{'lock'});
12936: if (keys(%currids)) {
12937: my @curr = sort { $a <=> $b } keys(%currids);
12938: if ($curr[-1] =~ /^\d+$/) {
12939: $id = 1 + $curr[-1];
12940: }
12941: } else {
12942: $id = 1;
12943: }
12944: if ($id) {
12945: if ($context eq 'domain') {
12946: unless (&newput_dom('ltitools',{ $id => $title },$cdom) eq 'ok') {
12947: $error = 'nostore';
12948: }
12949: } else {
12950: unless (&newput('ltitools',{ $id => $title },$cdom,$cnum) eq 'ok') {
12951: $error = 'nostore';
12952: }
12953: }
12954: } else {
12955: $error = 'nonumber';
12956: }
12957: }
12958: my $dellockoutcome;
12959: if ($context eq 'domain') {
12960: $dellockoutcome = &del_dom('ltitools',['lock'],$cdom);
12961: } else {
12962: $dellockoutcome = &del('ltitools',['lock'],$cdom,$cnum);
12963: }
12964: } else {
12965: $error = 'nolock';
12966: }
12967: return ($id,$error);
12968: }
12969:
12970: sub count_supptools {
12971: my ($cnum,$cdom,$ignorecache,$reload)=@_;
12972: my $hashid=$cnum.':'.$cdom;
12973: my ($numexttools,$cached);
12974: unless ($ignorecache) {
12975: ($numexttools,$cached) = &is_cached_new('supptools',$hashid);
12976: }
12977: unless (defined($cached)) {
12978: my $chome=&homeserver($cnum,$cdom);
12979: $numexttools = 0;
12980: unless ($chome eq 'no_host') {
12981: my ($supplemental) = &Apache::loncommon::get_supplemental($cnum,$cdom,$reload);
12982: if (ref($supplemental) eq 'HASH') {
12983: if ((ref($supplemental->{'ids'}) eq 'HASH') && (ref($supplemental->{'hidden'}) eq 'HASH')) {
12984: foreach my $key (keys(%{$supplemental->{'ids'}})) {
12985: if ($key =~ m{^/adm/$cdom/$cnum/\d+/ext\.tool$}) {
12986: $numexttools ++;
12987: }
12988: }
12989: }
12990: }
12991: }
12992: &do_cache_new('supptools',$hashid,$numexttools,600);
12993: }
12994: return $numexttools;
12995: }
12996:
12997: sub has_unhidden_suppfiles {
12998: my ($cnum,$cdom,$ignorecache,$possdel)=@_;
12999: my $hashid=$cnum.':'.$cdom;
13000: my ($showsupp,$cached);
13001: unless ($ignorecache) {
13002: ($showsupp,$cached) = &is_cached_new('showsupp',$hashid);
13003: }
13004: unless (defined($cached)) {
13005: my $chome=&homeserver($cnum,$cdom);
13006: unless ($chome eq 'no_host') {
13007: my ($supplemental) = &Apache::loncommon::get_supplemental($cnum,$cdom,$ignorecache,$possdel);
13008: if (ref($supplemental) eq 'HASH') {
13009: if ((ref($supplemental->{'ids'}) eq 'HASH') && (ref($supplemental->{'hidden'}) eq 'HASH')) {
13010: foreach my $key (keys(%{$supplemental->{'ids'}})) {
13011: next if ($key =~ /\.sequence$/);
13012: if (ref($supplemental->{'ids'}->{$key}) eq 'ARRAY') {
13013: foreach my $id (@{$supplemental->{'ids'}->{$key}}) {
13014: unless ($supplemental->{'hidden'}->{$id}) {
13015: $showsupp = 1;
13016: last;
13017: }
13018: }
13019: }
13020: last if ($showsupp);
13021: }
13022: }
13023: }
13024: }
13025: &do_cache_new('showsupp',$hashid,$showsupp,600);
13026: }
13027: return $showsupp;
13028: }
13029:
13030: #
13031: # EXT resource caching routines
13032: #
13033:
13034: {
13035: # Cache (5 seconds) of map hierarchy for speedup of navmaps display
13036: #
13037: # The course for which we cache
13038: my $cachedmapkey='';
13039: # The cached recursive maps for this course
13040: my %cachedmaps=();
13041: # When this was last done
13042: my $cachedmaptime='';
13043:
13044: sub clear_EXT_cache_status {
13045: &delenv('cache.EXT.');
13046: }
13047:
13048: sub EXT_cache_status {
13049: my ($target_domain,$target_user) = @_;
13050: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
13051: if (exists($env{$cachename}) && ($env{$cachename}+600) > time) {
13052: # We know already the user has no data
13053: return 1;
13054: } else {
13055: return 0;
13056: }
13057: }
13058:
13059: sub EXT_cache_set {
13060: my ($target_domain,$target_user) = @_;
13061: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
13062: #&appenv({$cachename => time});
13063: }
13064:
13065: # --------------------------------------------------------- Value of a Variable
13066: sub EXT {
13067:
13068: my ($varname,$symbparm,$udom,$uname,$usection,$recurse,$cid,$recurseupref)=@_;
13069: unless ($varname) { return ''; }
13070: #get real user name/domain, courseid and symb
13071: my $courseid;
13072: my $publicuser;
13073: if ($symbparm) {
13074: $symbparm=&get_symb_from_alias($symbparm);
13075: }
13076: if (!($uname && $udom)) {
13077: (my $cursymb,$courseid,$udom,$uname,$publicuser)= &whichuser($symbparm);
13078: if (!$symbparm) { $symbparm=$cursymb; }
13079: } else {
13080: $courseid=$env{'request.course.id'};
13081: }
13082: my ($realm,$space,$qualifier,@therest)=split(/\./,$varname);
13083: my $rest;
13084: if (defined($therest[0])) {
13085: $rest=join('.',@therest);
13086: } else {
13087: $rest='';
13088: }
13089:
13090: my $qualifierrest=$qualifier;
13091: if ($rest) { $qualifierrest.='.'.$rest; }
13092: my $spacequalifierrest=$space;
13093: if ($qualifierrest) { $spacequalifierrest.='.'.$qualifierrest; }
13094: if ($realm eq 'user') {
13095: # --------------------------------------------------------------- user.resource
13096: if ($space eq 'resource') {
13097: if ( (defined($Apache::lonhomework::parsing_a_problem)
13098: || defined($Apache::lonhomework::parsing_a_task))
13099: &&
13100: ($symbparm eq &symbread()) ) {
13101: # if we are in the middle of processing the resource the
13102: # get the value we are planning on committing
13103: if (defined($Apache::lonhomework::results{$qualifierrest})) {
13104: return $Apache::lonhomework::results{$qualifierrest};
13105: } else {
13106: return $Apache::lonhomework::history{$qualifierrest};
13107: }
13108: } else {
13109: my %restored;
13110: if ($publicuser || $env{'request.state'} eq 'construct') {
13111: %restored=&tmprestore($symbparm,$courseid,$udom,$uname);
13112: } else {
13113: %restored=&restore($symbparm,$courseid,$udom,$uname);
13114: }
13115: return $restored{$qualifierrest};
13116: }
13117: # ----------------------------------------------------------------- user.access
13118: } elsif ($space eq 'access') {
13119: # FIXME - not supporting calls for a specific user
13120: return &allowed($qualifier,$rest);
13121: # ------------------------------------------ user.preferences, user.environment
13122: } elsif (($space eq 'preferences') || ($space eq 'environment')) {
13123: if (($uname eq $env{'user.name'}) &&
13124: ($udom eq $env{'user.domain'})) {
13125: return $env{join('.',('environment',$qualifierrest))};
13126: } else {
13127: my %returnhash;
13128: if (!$publicuser) {
13129: %returnhash=&userenvironment($udom,$uname,
13130: $qualifierrest);
13131: }
13132: return $returnhash{$qualifierrest};
13133: }
13134: # ----------------------------------------------------------------- user.course
13135: } elsif ($space eq 'course') {
13136: # FIXME - not supporting calls for a specific user
13137: return $env{join('.',('request.course',$qualifier))};
13138: # ------------------------------------------------------------------- user.role
13139: } elsif ($space eq 'role') {
13140: # FIXME - not supporting calls for a specific user
13141: my ($role,$where)=split(/\./,$env{'request.role'});
13142: if ($qualifier eq 'value') {
13143: return $role;
13144: } elsif ($qualifier eq 'extent') {
13145: return $where;
13146: }
13147: # ----------------------------------------------------------------- user.domain
13148: } elsif ($space eq 'domain') {
13149: return $udom;
13150: # ------------------------------------------------------------------- user.name
13151: } elsif ($space eq 'name') {
13152: return $uname;
13153: # ---------------------------------------------------- Any other user namespace
13154: } else {
13155: my %reply;
13156: if (!$publicuser) {
13157: %reply=&get($space,[$qualifierrest],$udom,$uname);
13158: }
13159: return $reply{$qualifierrest};
13160: }
13161: } elsif ($realm eq 'query') {
13162: # ---------------------------------------------- pull stuff out of query string
13163: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
13164: [$spacequalifierrest]);
13165: return $env{'form.'.$spacequalifierrest};
13166: } elsif ($realm eq 'request') {
13167: # ------------------------------------------------------------- request.browser
13168: if ($space eq 'browser') {
13169: return $env{'browser.'.$qualifier};
13170: # ------------------------------------------------------------ request.filename
13171: } else {
13172: return $env{'request.'.$spacequalifierrest};
13173: }
13174: } elsif ($realm eq 'course') {
13175: # ---------------------------------------------------------- course.description
13176: return $env{'course.'.$courseid.'.'.$spacequalifierrest};
13177: } elsif ($realm eq 'resource') {
13178:
13179: if (defined($courseid) && $courseid eq $env{'request.course.id'}) {
13180: if (!$symbparm) { $symbparm=&symbread(); }
13181: }
13182:
13183: if ($qualifier eq '') {
13184: if ($space eq 'title') {
13185: if (!$symbparm) { $symbparm = $env{'request.filename'}; }
13186: return &gettitle($symbparm);
13187: }
13188:
13189: if ($space eq 'map') {
13190: my ($map) = &decode_symb($symbparm);
13191: return &symbread($map);
13192: }
13193: if ($space eq 'maptitle') {
13194: my ($map) = &decode_symb($symbparm);
13195: return &gettitle($map);
13196: }
13197: if ($space eq 'filename') {
13198: if ($symbparm) {
13199: return &clutter((&decode_symb($symbparm))[2]);
13200: }
13201: return &hreflocation('',$env{'request.filename'});
13202: }
13203:
13204: if ((defined($courseid)) && ($courseid eq $env{'request.course.id'}) && $symbparm) {
13205: if ($space eq 'visibleparts') {
13206: my $navmap = Apache::lonnavmaps::navmap->new();
13207: my $item;
13208: if (ref($navmap)) {
13209: my $res = $navmap->getBySymb($symbparm);
13210: my $parts = $res->parts();
13211: if (ref($parts) eq 'ARRAY') {
13212: $item = join(',',@{$parts});
13213: }
13214: undef($navmap);
13215: }
13216: return $item;
13217: }
13218: }
13219: }
13220:
13221: my ($section, $group, @groups, @recurseup, $recursed);
13222: if (ref($recurseupref) eq 'ARRAY') {
13223: @recurseup = @{$recurseupref};
13224: $recursed = 1;
13225: }
13226: my ($courselevelm,$courseleveli,$courselevel,$mapp);
13227: if (($courseid eq '') && ($cid)) {
13228: $courseid = $cid;
13229: }
13230: if (($symbparm && $courseid) &&
13231: (($courseid eq $env{'request.course.id'}) || ($courseid eq $cid))) {
13232:
13233: #print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;
13234:
13235: # ----------------------------------------------------- Cascading lookup scheme
13236: my $symbp=$symbparm;
13237: $mapp=&deversion((&decode_symb($symbp))[0]);
13238: my $symbparm=$symbp.'.'.$spacequalifierrest;
13239: my $recurseparm=$mapp.'___(rec).'.$spacequalifierrest;
13240: my $mapparm=$mapp.'___(all).'.$spacequalifierrest;
13241: if (($env{'user.name'} eq $uname) &&
13242: ($env{'user.domain'} eq $udom)) {
13243: $section=$env{'request.course.sec'};
13244: @groups = split(/:/,$env{'request.course.groups'});
13245: @groups=&sort_course_groups($courseid,@groups);
13246: } else {
13247: if (! defined($usection)) {
13248: $section=&getsection($udom,$uname,$courseid);
13249: } else {
13250: $section = $usection;
13251: }
13252: @groups = &get_users_groups($udom,$uname,$courseid);
13253: }
13254:
13255: my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest;
13256: my $seclevelr=$courseid.'.['.$section.'].'.$symbparm;
13257: my $secleveli=$courseid.'.['.$section.'].'.$recurseparm;
13258: my $seclevelm=$courseid.'.['.$section.'].'.$mapparm;
13259:
13260: $courselevel=$courseid.'.'.$spacequalifierrest;
13261: my $courselevelr=$courseid.'.'.$symbparm;
13262: $courseleveli=$courseid.'.'.$recurseparm;
13263: $courselevelm=$courseid.'.'.$mapparm;
13264:
13265: # ----------------------------------------------------------- first, check user
13266:
13267: my $userreply=&resdata($uname,$udom,'user',$mapp,\$recursed,
13268: \@recurseup,$courseid,'.',$spacequalifierrest,
13269: ([$courselevelr,'resource'],
13270: [$courselevelm,'map' ],
13271: [$courseleveli,'map' ],
13272: [$courselevel, 'course' ]));
13273: if (defined($userreply)) { return &get_reply($userreply); }
13274:
13275: # ------------------------------------------------ second, check some of course
13276: my $coursereply;
13277: if (@groups > 0) {
13278: $coursereply = &check_group_parms($courseid,\@groups,$symbparm,
13279: $recurseparm,$mapparm,$spacequalifierrest,
13280: $mapp,\$recursed,\@recurseup);
13281: if (defined($coursereply)) { return &get_reply($coursereply); }
13282: }
13283:
13284: $coursereply=&resdata($env{'course.'.$courseid.'.num'},
13285: $env{'course.'.$courseid.'.domain'},
13286: 'course',$mapp,\$recursed,\@recurseup,
13287: $courseid,'.['.$section.'].',$spacequalifierrest,
13288: ([$seclevelr, 'resource'],
13289: [$seclevelm, 'map' ],
13290: [$secleveli, 'map' ],
13291: [$seclevel, 'course' ],
13292: [$courselevelr,'resource']));
13293: if (defined($coursereply)) { return &get_reply($coursereply); }
13294:
13295: # ------------------------------------------------------ third, check map parms
13296: my %parmhash=();
13297: my $thisparm='';
13298: if (tie(%parmhash,'GDBM_File',
13299: $env{'request.course.fn'}.'_parms.db',
13300: &GDBM_READER(),0640)) {
13301: $thisparm=$parmhash{$symbparm};
13302: untie(%parmhash);
13303: }
13304: if ($thisparm) { return &get_reply([$thisparm,'resource']); }
13305: }
13306: # ------------------------------------------ fourth, look in resource metadata
13307:
13308: my $what = $spacequalifierrest;
13309: $what=~s/\./\_/;
13310: my $filename;
13311: if (!$symbparm) { $symbparm=&symbread(); }
13312: if ($symbparm) {
13313: $filename=(&decode_symb($symbparm))[2];
13314: } else {
13315: $filename=$env{'request.filename'};
13316: }
13317: my $toolsymb;
13318: if (($filename =~ /ext\.tool$/) && ($what ne '0_gradable')) {
13319: $toolsymb = $symbparm;
13320: }
13321: my $metadata=&metadata($filename,$what,$toolsymb);
13322: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
13323: $metadata=&metadata($filename,'parameter_'.$what,$toolsymb);
13324: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
13325:
13326: # ----------------------------------------------- fifth, look in rest of course
13327: if ($symbparm && defined($courseid) &&
13328: $courseid eq $env{'request.course.id'}) {
13329: my $coursereply=&resdata($env{'course.'.$courseid.'.num'},
13330: $env{'course.'.$courseid.'.domain'},
13331: 'course',$mapp,\$recursed,\@recurseup,
13332: $courseid,'.',$spacequalifierrest,
13333: ([$courselevelm,'map' ],
13334: [$courseleveli,'map' ],
13335: [$courselevel, 'course']));
13336: if (defined($coursereply)) { return &get_reply($coursereply); }
13337: }
13338: # ------------------------------------------------------------------ Cascade up
13339: unless ($space eq '0') {
13340: my @parts=split(/_/,$space);
13341: my $id=pop(@parts);
13342: my $part=join('_',@parts);
13343: if ($part eq '') { $part='0'; }
13344: my @partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest,
13345: $symbparm,$udom,$uname,$section,1);
13346: if (defined($partgeneral[0])) { return &get_reply(\@partgeneral); }
13347: }
13348: if ($recurse) { return undef; }
13349: my $pack_def=&packages_tab_default($filename,$varname,$toolsymb);
13350: if (defined($pack_def)) { return &get_reply([$pack_def,'resource']); }
13351: # ---------------------------------------------------- Any other user namespace
13352: } elsif ($realm eq 'environment') {
13353: # ----------------------------------------------------------------- environment
13354: if (($uname eq $env{'user.name'})&&($udom eq $env{'user.domain'})) {
13355: return $env{'environment.'.$spacequalifierrest};
13356: } else {
13357: if ($uname eq 'anonymous' && $udom eq '') {
13358: return '';
13359: }
13360: my %returnhash=&userenvironment($udom,$uname,
13361: $spacequalifierrest);
13362: return $returnhash{$spacequalifierrest};
13363: }
13364: } elsif ($realm eq 'system') {
13365: # ----------------------------------------------------------------- system.time
13366: if ($space eq 'time') {
13367: return time;
13368: }
13369: } elsif ($realm eq 'server') {
13370: # ----------------------------------------------------------------- system.time
13371: if ($space eq 'name') {
13372: return $ENV{'SERVER_NAME'};
13373: }
13374: } elsif ($realm eq 'client') {
13375: if ($space eq 'remote_addr') {
13376: return &get_requestor_ip();
13377: }
13378: }
13379: return '';
13380: }
13381:
13382: sub get_reply {
13383: my ($reply_value) = @_;
13384: if (ref($reply_value) eq 'ARRAY') {
13385: if (wantarray) {
13386: return @$reply_value;
13387: }
13388: return $reply_value->[0];
13389: } else {
13390: return $reply_value;
13391: }
13392: }
13393:
13394: sub check_group_parms {
13395: my ($courseid,$groups,$symbparm,$recurseparm,$mapparm,$what,$mapp,
13396: $recursed,$recurseupref) = @_;
13397: my @levels = ([$symbparm,'resource'],[$mapparm,'map'],[$recurseparm,'map'],
13398: [$what,'course']);
13399: my $coursereply;
13400: foreach my $group (@{$groups}) {
13401: my @groupitems = ();
13402: foreach my $level (@levels) {
13403: my $item = $courseid.'.['.$group.'].'.$level->[0];
13404: push(@groupitems,[$item,$level->[1]]);
13405: }
13406: my $coursereply = &resdata($env{'course.'.$courseid.'.num'},
13407: $env{'course.'.$courseid.'.domain'},
13408: 'course',$mapp,$recursed,$recurseupref,
13409: $courseid,'.['.$group.'].',$what,
13410: @groupitems);
13411: last if (defined($coursereply));
13412: }
13413: return $coursereply;
13414: }
13415:
13416: sub get_map_hierarchy {
13417: my ($mapname,$courseid) = @_;
13418: my @recurseup = ();
13419: if ($mapname) {
13420: if (($cachedmapkey eq $courseid) &&
13421: (abs($cachedmaptime-time)<5)) {
13422: if (ref($cachedmaps{$mapname}) eq 'ARRAY') {
13423: return @{$cachedmaps{$mapname}};
13424: }
13425: }
13426: my $navmap = Apache::lonnavmaps::navmap->new();
13427: if (ref($navmap)) {
13428: @recurseup = $navmap->recurseup_maps($mapname);
13429: undef($navmap);
13430: $cachedmaps{$mapname} = \@recurseup;
13431: $cachedmaptime=time;
13432: $cachedmapkey=$courseid;
13433: }
13434: }
13435: return @recurseup;
13436: }
13437:
13438: }
13439:
13440: sub sort_course_groups { # Sort groups based on defined rankings. Default is sort().
13441: my ($courseid,@groups) = @_;
13442: @groups = sort(@groups);
13443: return @groups;
13444: }
13445:
13446: sub packages_tab_default {
13447: my ($uri,$varname,$toolsymb)=@_;
13448: my (undef,$part,$name)=split(/\./,$varname);
13449:
13450: my (@extension,@specifics,$do_default);
13451: foreach my $package (split(/,/,&metadata($uri,'packages',$toolsymb))) {
13452: my ($pack_type,$pack_part)=split(/_/,$package,2);
13453: if ($pack_type eq 'default') {
13454: $do_default=1;
13455: } elsif ($pack_type eq 'extension') {
13456: push(@extension,[$package,$pack_type,$pack_part]);
13457: } elsif ($pack_part eq $part || $pack_type eq 'part') {
13458: # only look at packages defaults for packages that this id is
13459: push(@specifics,[$package,$pack_type,$pack_part]);
13460: }
13461: }
13462: # first look for a package that matches the requested part id
13463: foreach my $package (@specifics) {
13464: my (undef,$pack_type,$pack_part)=@{$package};
13465: next if ($pack_part ne $part);
13466: if (defined($packagetab{"$pack_type&$name&default"})) {
13467: return $packagetab{"$pack_type&$name&default"};
13468: }
13469: }
13470: # look for any possible matching non extension_ package
13471: foreach my $package (@specifics) {
13472: my (undef,$pack_type,$pack_part)=@{$package};
13473: if (defined($packagetab{"$pack_type&$name&default"})) {
13474: return $packagetab{"$pack_type&$name&default"};
13475: }
13476: if ($pack_type eq 'part') { $pack_part='0'; }
13477: if (defined($packagetab{$pack_type."_".$pack_part."&$name&default"})) {
13478: return $packagetab{$pack_type."_".$pack_part."&$name&default"};
13479: }
13480: }
13481: # look for any posible extension_ match
13482: foreach my $package (@extension) {
13483: my ($package,$pack_type)=@{$package};
13484: if (defined($packagetab{"$pack_type&$name&default"})) {
13485: return $packagetab{"$pack_type&$name&default"};
13486: }
13487: if (defined($packagetab{$package."&$name&default"})) {
13488: return $packagetab{$package."&$name&default"};
13489: }
13490: }
13491: # look for a global default setting
13492: if ($do_default && defined($packagetab{"default&$name&default"})) {
13493: return $packagetab{"default&$name&default"};
13494: }
13495: return undef;
13496: }
13497:
13498: sub add_prefix_and_part {
13499: my ($prefix,$part)=@_;
13500: my $keyroot;
13501: if (defined($prefix) && $prefix !~ /^__/) {
13502: # prefix that has a part already
13503: $keyroot=$prefix;
13504: } elsif (defined($prefix)) {
13505: # prefix that is missing a part
13506: if (defined($part)) { $keyroot='_'.$part.substr($prefix,1); }
13507: } else {
13508: # no prefix at all
13509: if (defined($part)) { $keyroot='_'.$part; }
13510: }
13511: return $keyroot;
13512: }
13513:
13514: # ---------------------------------------------------------------- Get metadata
13515:
13516: my %metaentry;
13517: my %importedpartids;
13518: my %importedrespids;
13519: sub metadata {
13520: my ($uri,$what,$toolsymb,$liburi,$prefix,$depthcount)=@_;
13521: $uri=&declutter($uri);
13522: # if it is a non metadata possible uri return quickly
13523: if (($uri eq '') ||
13524: (($uri =~ m|^/*adm/|) &&
13525: ($uri !~ m|^adm/includes|) && ($uri !~ m{/(smppg|bulletinboard|ext\.tool)$})) ||
13526: ($uri =~ m|/$|) || ($uri =~ m|/.meta$|) || ($uri =~ m{^/*uploaded/.+\.sequence$})) {
13527: return undef;
13528: }
13529: if (($uri =~ /^priv/ || $uri=~m{^home/httpd/html/priv})
13530: && &Apache::lonxml::get_state('target') =~ /^(|meta)$/) {
13531: return undef;
13532: }
13533: my $filename=$uri;
13534: $uri=~s/\.meta$//;
13535: #
13536: # Is the metadata already cached?
13537: # Look at timestamp of caching
13538: # Everything is cached by the main uri, libraries are never directly cached
13539: #
13540: if (!defined($liburi)) {
13541: my ($result,$cached)=&is_cached_new('meta',$uri);
13542: if (defined($cached)) { return $result->{':'.$what}; }
13543: }
13544:
13545: #
13546: # If the uri is for an external tool the file from
13547: # which metadata should be retrieved depends on whether
13548: # the tool had been configured to be gradable (set in the Course
13549: # Editor or Resource Editor).
13550: #
13551: # If a valid symb has been included as the third arg in the call
13552: # to &metadata() that can be used to retrieve the value of
13553: # parameter_0_gradable set for the resource, and included in the
13554: # uploaded map containing the tool. The value is retrieved via
13555: # &EXT(), if a valid symb is available. Otherwise the value of
13556: # gradable in the exttool_$marker.db file for the tool instance
13557: # is retrieved via &get().
13558: #
13559: # When lonuserstate::traceroute() calls lonnet::EXT() for
13560: # hiddenresource and encrypturl (during course initialization)
13561: # the map-level parameter for resource.0.gradable included in the
13562: # uploaded map containing the tool will not yet have been stored
13563: # in the user_course_parms.db file for the user's session, so in
13564: # this case fall back to retrieving gradable status from the
13565: # exttool_$marker.db file.
13566: #
13567: # In order to avoid an infinite loop, &metadata() will return
13568: # before a call to &EXT(), if the uri is for an external tool
13569: # and the $what for which metadata is being requested is
13570: # parameter_0_gradable or 0_gradable.
13571: #
13572:
13573: if ($uri =~ /ext\.tool$/) {
13574: if (($what eq 'parameter_0_gradable') || ($what eq '0_gradable')) {
13575: return;
13576: } else {
13577: my ($checked,$use_passback);
13578: if ($toolsymb ne '') {
13579: (undef,undef,my $tooluri) = &decode_symb($toolsymb);
13580: if (($tooluri eq $uri) && (&EXT('resource.0.gradable',$toolsymb))) {
13581: $checked = 1;
13582: if (&EXT('resource.0.gradable',$toolsymb) =~ /^yes$/i) {
13583: $use_passback = 1;
13584: }
13585: }
13586: }
13587: unless ($checked) {
13588: my ($ignore,$cdom,$cnum,$marker) = split(m{/},$uri);
13589: $marker=~s/\D//g;
13590: if ($marker) {
13591: my %toolsettings=&get('exttool_'.$marker,['gradable'],$cdom,$cnum);
13592: $use_passback = $toolsettings{'gradable'};
13593: }
13594: }
13595: if ($use_passback) {
13596: $filename = '/home/httpd/html/res/lib/templates/LTIpassback.tool';
13597: } else {
13598: $filename = '/home/httpd/html/res/lib/templates/LTIstandard.tool';
13599: }
13600: }
13601: }
13602:
13603: {
13604: # Imported parts would go here
13605: my @origfiletagids=();
13606: my $importedparts=0;
13607:
13608: # Imported responseids would go here
13609: my $importedresponses=0;
13610: #
13611: # Is this a recursive call for a library?
13612: #
13613: # if (! exists($metacache{$uri})) {
13614: # $metacache{$uri}={};
13615: # }
13616: my $cachetime = 60*60;
13617: if ($liburi) {
13618: $liburi=&declutter($liburi);
13619: $filename=$liburi;
13620: } else {
13621: &devalidate_cache_new('meta',$uri);
13622: undef(%metaentry);
13623: }
13624: my %metathesekeys=();
13625: unless ($filename=~/\.meta$/) { $filename.='.meta'; }
13626: my $metastring;
13627: if ($uri =~ /^priv/ || $uri=~/home\/httpd\/html\/priv/) {
13628: my $which = &hreflocation('','/'.($liburi || $uri));
13629: $metastring =
13630: &Apache::lonnet::ssi_body($which,
13631: ('grade_target' => 'meta'));
13632: $cachetime = 1; # only want this cached in the child not long term
13633: } elsif (($uri !~ m -^(editupload)/-) &&
13634: ($uri !~ m{^/*uploaded/$match_domain/$match_courseid/docs/})) {
13635: my $file=&filelocation('',&clutter($filename));
13636: #push(@{$metaentry{$uri.'.file'}},$file);
13637: $metastring=&getfile($file);
13638: }
13639: my $parser=HTML::LCParser->new(\$metastring);
13640: my $token;
13641: undef %metathesekeys;
13642: while ($token=$parser->get_token) {
13643: if ($token->[0] eq 'S') {
13644: if (defined($token->[2]->{'package'})) {
13645: #
13646: # This is a package - get package info
13647: #
13648: my $package=$token->[2]->{'package'};
13649: my $keyroot=&add_prefix_and_part($prefix,$token->[2]->{'part'});
13650: if (defined($token->[2]->{'id'})) {
13651: $keyroot.='_'.$token->[2]->{'id'};
13652: }
13653: if ($metaentry{':packages'}) {
13654: $metaentry{':packages'}.=','.$package.$keyroot;
13655: } else {
13656: $metaentry{':packages'}=$package.$keyroot;
13657: }
13658: foreach my $pack_entry (keys(%packagetab)) {
13659: my $part=$keyroot;
13660: $part=~s/^\_//;
13661: if ($pack_entry=~/^\Q$package\E\&/ ||
13662: $pack_entry=~/^\Q$package\E_0\&/) {
13663: my ($pack,$name,$subp)=split(/\&/,$pack_entry);
13664: # ignore package.tab specified default values
13665: # here &package_tab_default() will fetch those
13666: if ($subp eq 'default') { next; }
13667: my $value=$packagetab{$pack_entry};
13668: my $unikey;
13669: if ($pack =~ /_0$/) {
13670: $unikey='parameter_0_'.$name;
13671: $part=0;
13672: } else {
13673: $unikey='parameter'.$keyroot.'_'.$name;
13674: }
13675: if ($subp eq 'display') {
13676: $value.=' [Part: '.$part.']';
13677: }
13678: $metaentry{':'.$unikey.'.part'}=$part;
13679: $metathesekeys{$unikey}=1;
13680: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
13681: $metaentry{':'.$unikey.'.'.$subp}=$value;
13682: }
13683: if (defined($metaentry{':'.$unikey.'.default'})) {
13684: $metaentry{':'.$unikey}=
13685: $metaentry{':'.$unikey.'.default'};
13686: }
13687: }
13688: }
13689: } else {
13690: #
13691: # This is not a package - some other kind of start tag
13692: #
13693: my $entry=$token->[1];
13694: my $unikey='';
13695:
13696: if ($entry eq 'import') {
13697: #
13698: # Importing a library here
13699: #
13700: my $location=$parser->get_text('/import');
13701: my $dir=$filename;
13702: $dir=~s|[^/]*$||;
13703: $location=&filelocation($dir,$location);
13704:
13705: my $importid=$token->[2]->{'id'};
13706: my $importmode=$token->[2]->{'importmode'};
13707: #
13708: # Check metadata for imported file to
13709: # see if it contained response items
13710: #
13711: my ($origfile,@libfilekeys);
13712: my %currmetaentry = %metaentry;
13713: @libfilekeys = split(/,/,&metadata($location,'keys',undef,undef,undef,
13714: $depthcount+1));
13715: if (grep(/^responseorder$/,@libfilekeys)) {
13716: my $libresponseorder = &metadata($location,'responseorder',undef,undef,
13717: undef,$depthcount+1);
13718: if ($libresponseorder ne '') {
13719: if ($#origfiletagids<0) {
13720: undef(%importedrespids);
13721: undef(%importedpartids);
13722: }
13723: my @respids = split(/\s*,\s*/,$libresponseorder);
13724: if (@respids) {
13725: $importedrespids{$importid} = join(',',map { $importid.'_'.$_ } @respids);
13726: }
13727: if ($importedrespids{$importid} ne '') {
13728: $importedresponses = 1;
13729: # We need to get the original file and the imported file to get the response order correct
13730: # Load and inspect original file
13731: if ($#origfiletagids<0) {
13732: my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri);
13733: $origfile=&getfile($origfilelocation);
13734: @origfiletagids=($origfile=~/<((?:\w+)response|import|part)[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
13735: }
13736: }
13737: }
13738: }
13739: # Do not overwrite contents of %metaentry hash for resource itself with
13740: # hash populated for imported library file
13741: %metaentry = %currmetaentry;
13742: undef(%currmetaentry);
13743: if ($importmode eq 'part') {
13744: # Import as part(s)
13745: $importedparts=1;
13746: # We need to get the original file and the imported file to get the part order correct
13747: # Good news: we do not need to worry about nested libraries, since parts cannot be nested
13748: # Load and inspect original file if we didn't do that already
13749: if ($#origfiletagids<0) {
13750: undef(%importedrespids);
13751: undef(%importedpartids);
13752: if ($origfile eq '') {
13753: my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri);
13754: $origfile=&getfile($origfilelocation);
13755: @origfiletagids=($origfile=~/<(part|import)[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
13756: }
13757: }
13758: my @impfilepartids;
13759: # If <partorder> tag is included in metadata for the imported file
13760: # get the parts in the imported file from that.
13761: if (grep(/^partorder$/,@libfilekeys)) {
13762: %currmetaentry = %metaentry;
13763: my $libpartorder = &metadata($location,'partorder',undef,undef,undef,
13764: $depthcount+1);
13765: %metaentry = %currmetaentry;
13766: undef(%currmetaentry);
13767: if ($libpartorder ne '') {
13768: @impfilepartids=split(/\s*,\s*/,$libpartorder);
13769: }
13770: } else {
13771: # If no <partorder> tag available, load and inspect imported file
13772: my $impfile=&getfile($location);
13773: @impfilepartids=($impfile=~/<part[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
13774: }
13775: if ($#impfilepartids>=0) {
13776: # This problem had parts
13777: $importedpartids{$token->[2]->{'id'}}=join(',',@impfilepartids);
13778: } else {
13779: # Importing by turning a single problem into a problem part
13780: # It gets the import-tags ID as part-ID
13781: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'id'});
13782: $importedpartids{$token->[2]->{'id'}}=$token->[2]->{'id'};
13783: }
13784: } else {
13785: # Import as problem or as normal import
13786: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
13787: unless ($importmode eq 'problem') {
13788: # Normal import
13789: if (defined($token->[2]->{'id'})) {
13790: $unikey.='_'.$token->[2]->{'id'};
13791: }
13792: }
13793: # Check metadata for imported file to
13794: # see if it contained parts
13795: if (grep(/^partorder$/,@libfilekeys)) {
13796: %currmetaentry = %metaentry;
13797: my $libpartorder = &metadata($location,'partorder',undef,undef,undef,
13798: $depthcount+1);
13799: %metaentry = %currmetaentry;
13800: undef(%currmetaentry);
13801: if ($libpartorder ne '') {
13802: $importedparts = 1;
13803: $importedpartids{$token->[2]->{'id'}}=$libpartorder;
13804: }
13805: }
13806: }
13807: if ($depthcount<20) {
13808: my $metadata =
13809: &metadata($uri,'keys',$toolsymb,$location,$unikey,
13810: $depthcount+1);
13811: foreach my $meta (split(',',$metadata)) {
13812: $metaentry{':'.$meta}=$metaentry{':'.$meta};
13813: $metathesekeys{$meta}=1;
13814: }
13815: }
13816: } else {
13817: #
13818: # Not importing, some other kind of non-package, non-library start tag
13819: #
13820: $unikey=$entry.&add_prefix_and_part($prefix,$token->[2]->{'part'});
13821: if (defined($token->[2]->{'id'})) {
13822: $unikey.='_'.$token->[2]->{'id'};
13823: }
13824: if (defined($token->[2]->{'name'})) {
13825: $unikey.='_'.$token->[2]->{'name'};
13826: }
13827: $metathesekeys{$unikey}=1;
13828: foreach my $param (@{$token->[3]}) {
13829: $metaentry{':'.$unikey.'.'.$param} =
13830: $token->[2]->{$param};
13831: }
13832: my $internaltext=&HTML::Entities::decode($parser->get_text('/'.$entry));
13833: my $default=$metaentry{':'.$unikey.'.default'};
13834: if ( $internaltext =~ /^\s*$/ && $default !~ /^\s*$/) {
13835: # only ws inside the tag, and not in default, so use default
13836: # as value
13837: $metaentry{':'.$unikey}=$default;
13838: } elsif ( $internaltext =~ /\S/ ) {
13839: # something interesting inside the tag
13840: $metaentry{':'.$unikey}=$internaltext;
13841: } else {
13842: # no interesting values, don't set a default
13843: }
13844: # end of not-a-package not-a-library import
13845: }
13846: # end of not-a-package start tag
13847: }
13848: # the next is the end of "start tag"
13849: }
13850: }
13851: my ($extension) = ($uri =~ /\.(\w+)$/);
13852: $extension = lc($extension);
13853: if ($extension eq 'htm') { $extension='html'; }
13854:
13855: foreach my $key (keys(%packagetab)) {
13856: #no specific packages #how's our extension
13857: if ($key!~/^extension_\Q$extension\E&/) { next; }
13858: &metadata_create_package_def($uri,$key,'extension_'.$extension,
13859: \%metathesekeys);
13860: }
13861:
13862: if (!exists($metaentry{':packages'})
13863: || $packagetab{"import_defaults&extension_$extension"}) {
13864: foreach my $key (keys(%packagetab)) {
13865: #no specific packages well let's get default then
13866: if ($key!~/^default&/) { next; }
13867: &metadata_create_package_def($uri,$key,'default',
13868: \%metathesekeys);
13869: }
13870: }
13871: # are there custom rights to evaluate
13872: if ($metaentry{':copyright'} eq 'custom') {
13873:
13874: #
13875: # Importing a rights file here
13876: #
13877: unless ($depthcount) {
13878: my $location=$metaentry{':customdistributionfile'};
13879: my $dir=$filename;
13880: $dir=~s|[^/]*$||;
13881: $location=&filelocation($dir,$location);
13882: my $rights_metadata =
13883: &metadata($uri,'keys',$toolsymb,$location,'_rights',
13884: $depthcount+1);
13885: foreach my $rights (split(',',$rights_metadata)) {
13886: #$metaentry{':'.$rights}=$metacache{$uri}->{':'.$rights};
13887: $metathesekeys{$rights}=1;
13888: }
13889: }
13890: }
13891: # uniqifiy package listing
13892: my %seen;
13893: my @uniq_packages =
13894: grep { ! $seen{$_} ++ } (split(',',$metaentry{':packages'}));
13895: $metaentry{':packages'} = join(',',@uniq_packages);
13896:
13897: if (($importedresponses) || ($importedparts)) {
13898: if ($importedparts) {
13899: # We had imported parts and need to rebuild partorder
13900: $metaentry{':partorder'}='';
13901: $metathesekeys{'partorder'}=1;
13902: }
13903: if ($importedresponses) {
13904: # We had imported responses and need to rebuil responseorder
13905: $metaentry{':responseorder'}='';
13906: $metathesekeys{'responseorder'}=1;
13907: }
13908: for (my $index=0;$index<$#origfiletagids;$index+=2) {
13909: my $origid = $origfiletagids[$index+1];
13910: if ($origfiletagids[$index] eq 'part') {
13911: # Original part, part of the problem
13912: if ($importedparts) {
13913: $metaentry{':partorder'}.=','.$origid;
13914: }
13915: } elsif ($origfiletagids[$index] eq 'import') {
13916: if ($importedparts) {
13917: # We have imported parts at this position
13918: if ($importedpartids{$origid} ne '') {
13919: $metaentry{':partorder'}.=','.$importedpartids{$origid};
13920: }
13921: }
13922: if ($importedresponses) {
13923: # We have imported responses at this position
13924: if ($importedrespids{$origid} ne '') {
13925: $metaentry{':responseorder'}.=','.$importedrespids{$origid};
13926: }
13927: }
13928: } else {
13929: # Original response item, part of the problem
13930: if ($importedresponses) {
13931: $metaentry{':responseorder'}.=','.$origid;
13932: }
13933: }
13934: }
13935: if ($importedparts) {
13936: $metaentry{':partorder'}=~s/^\,//;
13937: }
13938: if ($importedresponses) {
13939: $metaentry{':responseorder'}=~s/^\,//;
13940: }
13941: }
13942: $metaentry{':keys'} = join(',',keys(%metathesekeys));
13943: &metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
13944: $metaentry{':allpossiblekeys'}=join(',',keys(%metathesekeys));
13945: unless ($liburi) {
13946: &do_cache_new('meta',$uri,\%metaentry,$cachetime);
13947: }
13948: # this is the end of "was not already recently cached
13949: }
13950: return $metaentry{':'.$what};
13951: }
13952:
13953: sub metadata_create_package_def {
13954: my ($uri,$key,$package,$metathesekeys)=@_;
13955: my ($pack,$name,$subp)=split(/\&/,$key);
13956: if ($subp eq 'default') { next; }
13957:
13958: if (defined($metaentry{':packages'})) {
13959: $metaentry{':packages'}.=','.$package;
13960: } else {
13961: $metaentry{':packages'}=$package;
13962: }
13963: my $value=$packagetab{$key};
13964: my $unikey;
13965: $unikey='parameter_0_'.$name;
13966: $metaentry{':'.$unikey.'.part'}=0;
13967: $$metathesekeys{$unikey}=1;
13968: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
13969: $metaentry{':'.$unikey.'.'.$subp}=$value;
13970: }
13971: if (defined($metaentry{':'.$unikey.'.default'})) {
13972: $metaentry{':'.$unikey}=
13973: $metaentry{':'.$unikey.'.default'};
13974: }
13975: }
13976:
13977: sub metadata_generate_part0 {
13978: my ($metadata,$metacache,$uri) = @_;
13979: my %allnames;
13980: foreach my $metakey (keys(%$metadata)) {
13981: if ($metakey=~/^parameter\_(.*)/) {
13982: my $part=$$metacache{':'.$metakey.'.part'};
13983: my $name=$$metacache{':'.$metakey.'.name'};
13984: if (! exists($$metadata{'parameter_0_'.$name.'.name'})) {
13985: $allnames{$name}=$part;
13986: }
13987: }
13988: }
13989: foreach my $name (keys(%allnames)) {
13990: $$metadata{"parameter_0_$name"}=1;
13991: my $key=":parameter_0_$name";
13992: $$metacache{"$key.part"}='0';
13993: $$metacache{"$key.name"}=$name;
13994: $$metacache{"$key.type"}=$$metacache{':parameter_'.
13995: $allnames{$name}.'_'.$name.
13996: '.type'};
13997: my $olddis=$$metacache{':parameter_'.$allnames{$name}.'_'.$name.
13998: '.display'};
13999: my $expr='[Part: '.$allnames{$name}.']';
14000: $olddis=~s/\Q$expr\E/\[Part: 0\]/;
14001: $$metacache{"$key.display"}=$olddis;
14002: }
14003: }
14004:
14005: # ------------------------------------------------------ Devalidate title cache
14006:
14007: sub devalidate_title_cache {
14008: my ($url)=@_;
14009: if (!$env{'request.course.id'}) { return; }
14010: my $symb=&symbread($url);
14011: if (!$symb) { return; }
14012: my $key=$env{'request.course.id'}."\0".$symb;
14013: &devalidate_cache_new('title',$key);
14014: }
14015:
14016: # ------------------------------------------------- Get the title of a course
14017:
14018: sub current_course_title {
14019: return $env{ 'course.' . $env{'request.course.id'} . '.description' };
14020: }
14021: # ------------------------------------------------- Get the title of a resource
14022:
14023: sub gettitle {
14024: my $urlsymb=shift;
14025: my $symb=&symbread($urlsymb);
14026: if ($symb) {
14027: my $key=$env{'request.course.id'}."\0".$symb;
14028: my ($result,$cached)=&is_cached_new('title',$key);
14029: if (defined($cached)) {
14030: return $result;
14031: }
14032: my ($map,$resid,$url)=&decode_symb($symb);
14033: my $title='';
14034: if (!$map && $resid == 0 && $url =~/default\.sequence$/) {
14035: $title = $env{'course.'.$env{'request.course.id'}.'.description'};
14036: } else {
14037: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
14038: &GDBM_READER(),0640)) {
14039: my $mapid=$bighash{'map_pc_'.&clutter($map)};
14040: $title=$bighash{'title_'.$mapid.'.'.$resid};
14041: untie(%bighash);
14042: }
14043: }
14044: $title=~s/\&colon\;/\:/gs;
14045: if ($title) {
14046: # Remember both $symb and $title for dynamic metadata
14047: $accesshash{$symb.'___crstitle'}=$title;
14048: $accesshash{&declutter($map).'___'.&declutter($url).'___usage'}=time;
14049: # Cache this title and then return it
14050: return &do_cache_new('title',$key,$title,600);
14051: }
14052: $urlsymb=$url;
14053: }
14054: my $title=&metadata($urlsymb,'title');
14055: if (!$title) { $title=(split('/',$urlsymb))[-1]; }
14056: return $title;
14057: }
14058:
14059: sub get_slot {
14060: my ($which,$cnum,$cdom)=@_;
14061: if (!$cnum || !$cdom) {
14062: (undef,my $courseid)=&whichuser();
14063: $cdom=$env{'course.'.$courseid.'.domain'};
14064: $cnum=$env{'course.'.$courseid.'.num'};
14065: }
14066: my $key=join("\0",'slots',$cdom,$cnum,$which);
14067: my %slotinfo;
14068: if (exists($remembered{$key})) {
14069: $slotinfo{$which} = $remembered{$key};
14070: } else {
14071: %slotinfo=&get('slots',[$which],$cdom,$cnum);
14072: &Apache::lonhomework::showhash(%slotinfo);
14073: my ($tmp)=keys(%slotinfo);
14074: if ($tmp=~/^error:/) { return (); }
14075: $remembered{$key} = $slotinfo{$which};
14076: }
14077: if (ref($slotinfo{$which}) eq 'HASH') {
14078: return %{$slotinfo{$which}};
14079: }
14080: return $slotinfo{$which};
14081: }
14082:
14083: sub get_reservable_slots {
14084: my ($cnum,$cdom,$uname,$udom) = @_;
14085: my $now = time;
14086: my $reservable_info;
14087: my $key=join("\0",'reservableslots',$cdom,$cnum,$uname,$udom);
14088: if (exists($remembered{$key})) {
14089: $reservable_info = $remembered{$key};
14090: } else {
14091: my %resv;
14092: ($resv{'now_order'},$resv{'now'},$resv{'future_order'},$resv{'future'}) =
14093: &Apache::loncommon::get_future_slots($cnum,$cdom,$now);
14094: $reservable_info = \%resv;
14095: $remembered{$key} = $reservable_info;
14096: }
14097: return $reservable_info;
14098: }
14099:
14100: sub get_course_slots {
14101: my ($cnum,$cdom) = @_;
14102: my $hashid=$cnum.':'.$cdom;
14103: my ($result,$cached) = &is_cached_new('allslots',$hashid);
14104: if (defined($cached)) {
14105: if (ref($result) eq 'HASH') {
14106: return %{$result};
14107: }
14108: } else {
14109: my %slots=&dump('slots',$cdom,$cnum);
14110: my ($tmp) = keys(%slots);
14111: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
14112: &do_cache_new('allslots',$hashid,\%slots,600);
14113: return %slots;
14114: }
14115: }
14116: return;
14117: }
14118:
14119: sub devalidate_slots_cache {
14120: my ($cnum,$cdom)=@_;
14121: my $hashid=$cnum.':'.$cdom;
14122: &devalidate_cache_new('allslots',$hashid);
14123: }
14124:
14125: sub get_coursechange {
14126: my ($cdom,$cnum) = @_;
14127: if ($cdom eq '' || $cnum eq '') {
14128: return unless ($env{'request.course.id'});
14129: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
14130: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
14131: }
14132: my $hashid=$cdom.'_'.$cnum;
14133: my ($change,$cached)=&is_cached_new('crschange',$hashid);
14134: if ((defined($cached)) && ($change ne '')) {
14135: return $change;
14136: } else {
14137: my %crshash;
14138: %crshash = &get('environment',['internal.contentchange'],$cdom,$cnum);
14139: if ($crshash{'internal.contentchange'} eq '') {
14140: $change = $env{'course.'.$cdom.'_'.$cnum.'.internal.created'};
14141: if ($change eq '') {
14142: %crshash = &get('environment',['internal.created'],$cdom,$cnum);
14143: $change = $crshash{'internal.created'};
14144: }
14145: } else {
14146: $change = $crshash{'internal.contentchange'};
14147: }
14148: my $cachetime = 600;
14149: &do_cache_new('crschange',$hashid,$change,$cachetime);
14150: }
14151: return $change;
14152: }
14153:
14154: sub devalidate_coursechange_cache {
14155: my ($cdom,$cnum)=@_;
14156: my $hashid=$cdom.'_'.$cnum;
14157: &devalidate_cache_new('crschange',$hashid);
14158: }
14159:
14160: sub get_suppchange {
14161: my ($cdom,$cnum) = @_;
14162: if ($cdom eq '' || $cnum eq '') {
14163: return unless ($env{'request.course.id'});
14164: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
14165: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
14166: }
14167: my $hashid=$cdom.'_'.$cnum;
14168: my ($change,$cached)=&is_cached_new('suppchange',$hashid);
14169: if ((defined($cached)) && ($change ne '')) {
14170: return $change;
14171: } else {
14172: my %crshash = &get('environment',['internal.supplementalchange'],$cdom,$cnum);
14173: if ($crshash{'internal.supplementalchange'} eq '') {
14174: $change = $env{'course.'.$cdom.'_'.$cnum.'.internal.created'};
14175: if ($change eq '') {
14176: %crshash = &get('environment',['internal.created'],$cdom,$cnum);
14177: $change = $crshash{'internal.created'};
14178: }
14179: } else {
14180: $change = $crshash{'internal.supplementalchange'};
14181: }
14182: my $cachetime = 600;
14183: &do_cache_new('suppchange',$hashid,$change,$cachetime);
14184: }
14185: return $change;
14186: }
14187:
14188: sub devalidate_suppchange_cache {
14189: my ($cdom,$cnum)=@_;
14190: my $hashid=$cdom.'_'.$cnum;
14191: &devalidate_cache_new('suppchange',$hashid);
14192: }
14193:
14194: sub update_supp_caches {
14195: my ($cdom,$cnum) = @_;
14196: my %servers = &internet_dom_servers($cdom);
14197: my @ids=¤t_machine_ids();
14198: foreach my $server (keys(%servers)) {
14199: next if (grep(/^\Q$server\E$/,@ids));
14200: my $hashid=$cnum.':'.$cdom;
14201: my $cachekey = &escape('showsupp').':'.&escape($hashid);
14202: &remote_devalidate_cache($server,[$cachekey]);
14203: }
14204: &has_unhidden_suppfiles($cnum,$cdom,1,1);
14205: &count_supptools($cnum,$cdom,1);
14206: my $now = time;
14207: if ($env{'request.course.id'} eq $cdom.'_'.$cnum) {
14208: &Apache::lonnet::appenv({'request.course.suppupdated' => $now});
14209: }
14210: &put('environment',{'internal.supplementalchange' => $now},
14211: $cdom,$cnum);
14212: &Apache::lonnet::appenv(
14213: {'course.'.$cdom.'_'.$cnum.'.internal.supplementalchange' => $now});
14214: &do_cache_new('suppchange',$cdom.'_'.$cnum,$now,600);
14215: }
14216:
14217: # ------------------------------------------------- Update symbolic store links
14218:
14219: sub symblist {
14220: my ($mapname,%newhash)=@_;
14221: $mapname=&deversion(&declutter($mapname));
14222: my %hash;
14223: if (($env{'request.course.fn'}) && (%newhash)) {
14224: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
14225: &GDBM_WRCREAT(),0640)) {
14226: foreach my $url (keys(%newhash)) {
14227: next if ($url eq 'last_known'
14228: && $env{'form.no_update_last_known'});
14229: $hash{declutter($url)}=&encode_symb($mapname,
14230: $newhash{$url}->[1],
14231: $newhash{$url}->[0]);
14232: }
14233: if (untie(%hash)) {
14234: return 'ok';
14235: }
14236: }
14237: }
14238: return 'error';
14239: }
14240:
14241: # --------------------------------------------------------------- Verify a symb
14242:
14243: sub symbverify {
14244: my ($symb,$thisurl,$encstate)=@_;
14245: my $thisfn=$thisurl;
14246: $thisfn=&declutter($thisfn);
14247: # direct jump to resource in page or to a sequence - will construct own symbs
14248: if ($thisfn=~/\.(page|sequence)$/) { return 1; }
14249: # check URL part
14250: my ($map,$resid,$url)=&decode_symb($symb);
14251:
14252: unless ($url eq $thisfn) { return 0; }
14253:
14254: $symb=&symbclean($symb);
14255: $thisurl=&deversion($thisurl);
14256: $thisfn=&deversion($thisfn);
14257:
14258: my %bighash;
14259: my $okay=0;
14260:
14261: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
14262: &GDBM_READER(),0640)) {
14263: if (($thisurl =~ m{^/adm/wrapper/ext/}) || ($thisurl =~ m{^ext/})) {
14264: $thisurl =~ s/\?.+$//;
14265: if ($map =~ m{^uploaded/.+\.page$}) {
14266: $thisurl =~ s{^(/adm/wrapper|)/ext/}{http://};
14267: $thisurl =~ s{^\Qhttp://https://\E}{https://};
14268: }
14269: }
14270: my $ids;
14271: if ($map =~ m{^uploaded/.+\.page$}) {
14272: $ids=$bighash{'ids_'.&clutter_with_no_wrapper($thisurl)};
14273: } else {
14274: $ids=$bighash{'ids_'.&clutter($thisurl)};
14275: }
14276: unless ($ids) {
14277: my $idkey = 'ids_'.($thisurl =~ m{^/}? '' : '/').$thisurl;
14278: $ids=$bighash{$idkey};
14279: }
14280: if ($ids) {
14281: # ------------------------------------------------------------------- Has ID(s)
14282: if ($thisfn =~ m{^/adm/wrapper/ext/}) {
14283: $symb =~ s/\?.+$//;
14284: }
14285: foreach my $id (split(/\,/,$ids)) {
14286: my ($mapid,$resid)=split(/\./,$id);
14287: if (
14288: &symbclean(&declutter($bighash{'map_id_'.$mapid}).'___'.$resid.'___'.$thisfn)
14289: eq $symb) {
14290: if (ref($encstate)) {
14291: $$encstate = $bighash{'encrypted_'.$id};
14292: }
14293: if (($env{'request.role.adv'}) ||
14294: ($bighash{'encrypted_'.$id} eq $env{'request.enc'}) ||
14295: ($thisurl eq '/adm/navmaps')) {
14296: $okay=1;
14297: last;
14298: }
14299: }
14300: }
14301: }
14302: untie(%bighash);
14303: }
14304: return $okay;
14305: }
14306:
14307: # --------------------------------------------------------------- Clean-up symb
14308:
14309: sub symbclean {
14310: my $symb=shift;
14311: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
14312: # remove version from map
14313: $symb=~s/\.(\d+)\.(\w+)\_\_\_/\.$2\_\_\_/;
14314:
14315: # remove version from URL
14316: $symb=~s/\.(\d+)\.(\w+)$/\.$2/;
14317:
14318: # remove wrapper
14319:
14320: $symb=~s/(\_\_\_\d+\_\_\_)adm\/wrapper\/(res\/)*/$1/;
14321: $symb=~s/(\_\_\_\d+\_\_\_)adm\/coursedocs\/showdoc\/(res\/)*/$1/;
14322: return $symb;
14323: }
14324:
14325: # ---------------------------------------------- Split symb to find map and url
14326:
14327: sub encode_symb {
14328: my ($map,$resid,$url)=@_;
14329: return &symbclean(&declutter($map).'___'.$resid.'___'.&declutter($url));
14330: }
14331:
14332: sub decode_symb {
14333: my $symb=shift;
14334: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
14335: my ($map,$resid,$url)=split(/___/,$symb);
14336: return (&fixversion($map),$resid,&fixversion($url));
14337: }
14338:
14339: sub fixversion {
14340: my $fn=shift;
14341: if ($fn=~/^(adm|uploaded|editupload|public)/) { return $fn; }
14342: my %bighash;
14343: my $uri=&clutter($fn);
14344: my $key=$env{'request.course.id'}.'_'.$uri;
14345: # is this cached?
14346: my ($result,$cached)=&is_cached_new('courseresversion',$key);
14347: if (defined($cached)) { return $result; }
14348: # unfortunately not cached, or expired
14349: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
14350: &GDBM_READER(),0640)) {
14351: if ($bighash{'version_'.$uri}) {
14352: my $version=$bighash{'version_'.$uri};
14353: unless (($version eq 'mostrecent') ||
14354: ($version==&getversion($uri))) {
14355: $uri=~s/\.(\w+)$/\.$version\.$1/;
14356: }
14357: }
14358: untie %bighash;
14359: }
14360: return &do_cache_new('courseresversion',$key,&declutter($uri),600);
14361: }
14362:
14363: sub deversion {
14364: my $url=shift;
14365: $url=~s/\.\d+\.(\w+)$/\.$1/;
14366: return $url;
14367: }
14368:
14369: # ------------------------------------------------------ Return symb list entry
14370:
14371: sub symbread {
14372: my ($thisfn,$donotrecurse,$ignorecachednull,$checkforblock,$possibles,
14373: $ignoresymbdb,$noenccheck)=@_;
14374: my $cache_str='request.symbread.cached.'.$thisfn;
14375: if (defined($env{$cache_str})) {
14376: unless (ref($possibles) eq 'HASH') {
14377: if ($ignorecachednull) {
14378: return $env{$cache_str} unless ($env{$cache_str} eq '');
14379: } else {
14380: return $env{$cache_str};
14381: }
14382: }
14383: }
14384: # no filename provided? try from environment
14385: unless ($thisfn) {
14386: if ($env{'request.symb'}) {
14387: return $env{$cache_str}=&symbclean($env{'request.symb'});
14388: }
14389: $thisfn=$env{'request.filename'};
14390: }
14391: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
14392: # is that filename actually a symb? Verify, clean, and return
14393: if ($thisfn=~/\_\_\_\d+\_\_\_(.*)$/) {
14394: if (&symbverify($thisfn,$1)) {
14395: return $env{$cache_str}=&symbclean($thisfn);
14396: }
14397: }
14398: $thisfn=declutter($thisfn);
14399: my %hash;
14400: my %bighash;
14401: my $syval='';
14402: if (($env{'request.course.fn'}) && ($thisfn)) {
14403: unless ($ignoresymbdb) {
14404: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
14405: &GDBM_READER(),0640)) {
14406: $syval=$hash{$thisfn};
14407: untie(%hash);
14408: }
14409: if ($syval && $checkforblock) {
14410: my @blockers = &has_comm_blocking('bre',$syval,$thisfn,$ignoresymbdb,$noenccheck);
14411: if (@blockers) {
14412: $syval='';
14413: }
14414: }
14415: }
14416: # ---------------------------------------------------------- There was an entry
14417: if ($syval) {
14418: #unless ($syval=~/\_\d+$/) {
14419: #unless ($env{'form.request.prefix'}=~/\.(\d+)\_$/) {
14420: #&appenv({'request.ambiguous' => $thisfn});
14421: #return $env{$cache_str}='';
14422: #}
14423: #$syval.=$1;
14424: #}
14425: } else {
14426: # ------------------------------------------------------- Was not in symb table
14427: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
14428: &GDBM_READER(),0640)) {
14429: # ---------------------------------------------- Get ID(s) for current resource
14430: my $ids=$bighash{'ids_'.&clutter($thisfn)};
14431: unless ($ids) {
14432: $ids=$bighash{'ids_/'.$thisfn};
14433: }
14434: unless ($ids) {
14435: # alias?
14436: $ids=$bighash{'mapalias_'.$thisfn};
14437: }
14438: if ($ids) {
14439: # ------------------------------------------------------------------- Has ID(s)
14440: my @possibilities=split(/\,/,$ids);
14441: if ($#possibilities==0) {
14442: # ----------------------------------------------- There is only one possibility
14443: my ($mapid,$resid)=split(/\./,$ids);
14444: $syval=&encode_symb($bighash{'map_id_'.$mapid},
14445: $resid,$thisfn);
14446: if (ref($possibles) eq 'HASH') {
14447: unless ($bighash{'randomout_'.$ids} || $env{'request.role.adv'}) {
14448: $possibles->{$syval} = 1;
14449: }
14450: }
14451: if ($checkforblock) {
14452: unless ($bighash{'randomout_'.$ids} || $env{'request.role.adv'}) {
14453: my @blockers = &has_comm_blocking('bre',$syval,$bighash{'src_'.$ids},'',$noenccheck);
14454: if (@blockers) {
14455: $syval = '';
14456: untie(%bighash);
14457: return $env{$cache_str}='';
14458: }
14459: }
14460: }
14461: } elsif ((!$donotrecurse) || ($checkforblock) || (ref($possibles) eq 'HASH')) {
14462: # ------------------------------------------ There is more than one possibility
14463: my $realpossible=0;
14464: foreach my $id (@possibilities) {
14465: my $file=$bighash{'src_'.$id};
14466: my $canaccess;
14467: if (($donotrecurse) || ($checkforblock) || (ref($possibles) eq 'HASH')) {
14468: $canaccess = 1;
14469: } else {
14470: $canaccess = &allowed('bre',$file);
14471: }
14472: if ($canaccess) {
14473: my ($mapid,$resid)=split(/\./,$id);
14474: if ($bighash{'map_type_'.$mapid} ne 'page') {
14475: my $poss_syval=&encode_symb($bighash{'map_id_'.$mapid},
14476: $resid,$thisfn);
14477: next if ($bighash{'randomout_'.$id} && !$env{'request.role.adv'});
14478: next unless (($noenccheck) || ($bighash{'encrypted_'.$id} eq $env{'request.enc'}));
14479: if ($checkforblock) {
14480: my @blockers = &has_comm_blocking('bre',$poss_syval,$file,'',$noenccheck);
14481: if (@blockers > 0) {
14482: $syval = '';
14483: } else {
14484: $syval = $poss_syval;
14485: $realpossible++;
14486: }
14487: } else {
14488: $syval = $poss_syval;
14489: $realpossible++;
14490: }
14491: if ($syval) {
14492: if (ref($possibles) eq 'HASH') {
14493: $possibles->{$syval} = 1;
14494: }
14495: }
14496: }
14497: }
14498: }
14499: if ($realpossible!=1) { $syval=''; }
14500: } else {
14501: $syval='';
14502: }
14503: }
14504: untie(%bighash);
14505: }
14506: }
14507: if ($syval) {
14508: return $env{$cache_str}=$syval;
14509: }
14510: }
14511: &appenv({'request.ambiguous' => $thisfn});
14512: return $env{$cache_str}='';
14513: }
14514:
14515: # ---------------------------------------------------------- Return random seed
14516:
14517: sub numval {
14518: my $txt=shift;
14519: $txt=~tr/A-J/0-9/;
14520: $txt=~tr/a-j/0-9/;
14521: $txt=~tr/K-T/0-9/;
14522: $txt=~tr/k-t/0-9/;
14523: $txt=~tr/U-Z/0-5/;
14524: $txt=~tr/u-z/0-5/;
14525: $txt=~s/\D//g;
14526: if ($_64bit) { if ($txt > 2**32) { return -1; } }
14527: return int($txt);
14528: }
14529:
14530: sub numval2 {
14531: my $txt=shift;
14532: $txt=~tr/A-J/0-9/;
14533: $txt=~tr/a-j/0-9/;
14534: $txt=~tr/K-T/0-9/;
14535: $txt=~tr/k-t/0-9/;
14536: $txt=~tr/U-Z/0-5/;
14537: $txt=~tr/u-z/0-5/;
14538: $txt=~s/\D//g;
14539: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
14540: my $total;
14541: foreach my $val (@txts) { $total+=$val; }
14542: if ($_64bit) { if ($total > 2**32) { return -1; } }
14543: return int($total);
14544: }
14545:
14546: sub numval3 {
14547: use integer;
14548: my $txt=shift;
14549: $txt=~tr/A-J/0-9/;
14550: $txt=~tr/a-j/0-9/;
14551: $txt=~tr/K-T/0-9/;
14552: $txt=~tr/k-t/0-9/;
14553: $txt=~tr/U-Z/0-5/;
14554: $txt=~tr/u-z/0-5/;
14555: $txt=~s/\D//g;
14556: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
14557: my $total;
14558: foreach my $val (@txts) { $total+=$val; }
14559: if ($_64bit) { $total=(($total<<32)>>32); }
14560: return $total;
14561: }
14562:
14563: sub digest {
14564: my ($data)=@_;
14565: my $digest=&Digest::MD5::md5($data);
14566: my ($a,$b,$c,$d)=unpack("iiii",$digest);
14567: my ($e,$f);
14568: {
14569: use integer;
14570: $e=($a+$b);
14571: $f=($c+$d);
14572: if ($_64bit) {
14573: $e=(($e<<32)>>32);
14574: $f=(($f<<32)>>32);
14575: }
14576: }
14577: if (wantarray) {
14578: return ($e,$f);
14579: } else {
14580: my $g;
14581: {
14582: use integer;
14583: $g=($e+$f);
14584: if ($_64bit) {
14585: $g=(($g<<32)>>32);
14586: }
14587: }
14588: return $g;
14589: }
14590: }
14591:
14592: sub latest_rnd_algorithm_id {
14593: return '64bit5';
14594: }
14595:
14596: sub get_rand_alg {
14597: my ($courseid)=@_;
14598: if (!$courseid) { $courseid=(&whichuser())[1]; }
14599: if ($courseid) {
14600: return $env{"course.$courseid.rndseed"};
14601: }
14602: return &latest_rnd_algorithm_id();
14603: }
14604:
14605: sub validCODE {
14606: my ($CODE)=@_;
14607: if (defined($CODE) && $CODE ne '' && $CODE =~ /^\w+$/) { return 1; }
14608: return 0;
14609: }
14610:
14611: sub getCODE {
14612: if (&validCODE($env{'form.CODE'})) { return $env{'form.CODE'}; }
14613: if ( (defined($Apache::lonhomework::parsing_a_problem) ||
14614: defined($Apache::lonhomework::parsing_a_task) ) &&
14615: &validCODE($Apache::lonhomework::history{'resource.CODE'})) {
14616: return $Apache::lonhomework::history{'resource.CODE'};
14617: }
14618: return undef;
14619: }
14620: #
14621: # Determines the random seed for a specific context:
14622: #
14623: # parameters:
14624: # symb - in course context the symb for the seed.
14625: # course_id - The course id of the form domain_coursenum.
14626: # domain - Domain for the user.
14627: # course - Course for the user.
14628: # cenv - environment of the course.
14629: #
14630: # NOTE:
14631: # All parameters are picked out of the environment if missing
14632: # or not defined.
14633: # If a symb cannot be determined the current time is used instead.
14634: #
14635: # For a given well defined symb, courside, domain, username,
14636: # and course environment, the seed is reproducible.
14637: #
14638: sub rndseed {
14639: my ($symb,$courseid,$domain,$username, $cenv)=@_;
14640: my ($wsymb,$wcourseid,$wdomain,$wusername)=&whichuser();
14641: if (!defined($symb)) {
14642: unless ($symb=$wsymb) { return time; }
14643: }
14644: if (!defined $courseid) {
14645: $courseid=$wcourseid;
14646: }
14647: if (!defined $domain) { $domain=$wdomain; }
14648: if (!defined $username) { $username=$wusername }
14649:
14650: my $which;
14651: if (defined($cenv->{'rndseed'})) {
14652: $which = $cenv->{'rndseed'};
14653: } else {
14654: $which =&get_rand_alg($courseid);
14655: }
14656: if (defined(&getCODE())) {
14657:
14658: if ($which eq '64bit5') {
14659: return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username);
14660: } elsif ($which eq '64bit4') {
14661: return &rndseed_CODE_64bit4($symb,$courseid,$domain,$username);
14662: } else {
14663: return &rndseed_CODE_64bit($symb,$courseid,$domain,$username);
14664: }
14665: } elsif ($which eq '64bit5') {
14666: return &rndseed_64bit5($symb,$courseid,$domain,$username);
14667: } elsif ($which eq '64bit4') {
14668: return &rndseed_64bit4($symb,$courseid,$domain,$username);
14669: } elsif ($which eq '64bit3') {
14670: return &rndseed_64bit3($symb,$courseid,$domain,$username);
14671: } elsif ($which eq '64bit2') {
14672: return &rndseed_64bit2($symb,$courseid,$domain,$username);
14673: } elsif ($which eq '64bit') {
14674: return &rndseed_64bit($symb,$courseid,$domain,$username);
14675: }
14676: return &rndseed_32bit($symb,$courseid,$domain,$username);
14677: }
14678:
14679: sub rndseed_32bit {
14680: my ($symb,$courseid,$domain,$username)=@_;
14681: {
14682: use integer;
14683: my $symbchck=unpack("%32C*",$symb) << 27;
14684: my $symbseed=numval($symb) << 22;
14685: my $namechck=unpack("%32C*",$username) << 17;
14686: my $nameseed=numval($username) << 12;
14687: my $domainseed=unpack("%32C*",$domain) << 7;
14688: my $courseseed=unpack("%32C*",$courseid);
14689: my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck;
14690: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
14691: #&logthis("rndseed :$num:$symb");
14692: if ($_64bit) { $num=(($num<<32)>>32); }
14693: return $num;
14694: }
14695: }
14696:
14697: sub rndseed_64bit {
14698: my ($symb,$courseid,$domain,$username)=@_;
14699: {
14700: use integer;
14701: my $symbchck=unpack("%32S*",$symb) << 21;
14702: my $symbseed=numval($symb) << 10;
14703: my $namechck=unpack("%32S*",$username);
14704:
14705: my $nameseed=numval($username) << 21;
14706: my $domainseed=unpack("%32S*",$domain) << 10;
14707: my $courseseed=unpack("%32S*",$courseid);
14708:
14709: my $num1=$symbchck+$symbseed+$namechck;
14710: my $num2=$nameseed+$domainseed+$courseseed;
14711: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
14712: #&logthis("rndseed :$num:$symb");
14713: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
14714: return "$num1,$num2";
14715: }
14716: }
14717:
14718: sub rndseed_64bit2 {
14719: my ($symb,$courseid,$domain,$username)=@_;
14720: {
14721: use integer;
14722: # strings need to be an even # of cahracters long, it it is odd the
14723: # last characters gets thrown away
14724: my $symbchck=unpack("%32S*",$symb.' ') << 21;
14725: my $symbseed=numval($symb) << 10;
14726: my $namechck=unpack("%32S*",$username.' ');
14727:
14728: my $nameseed=numval($username) << 21;
14729: my $domainseed=unpack("%32S*",$domain.' ') << 10;
14730: my $courseseed=unpack("%32S*",$courseid.' ');
14731:
14732: my $num1=$symbchck+$symbseed+$namechck;
14733: my $num2=$nameseed+$domainseed+$courseseed;
14734: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
14735: #&logthis("rndseed :$num:$symb");
14736: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
14737: return "$num1,$num2";
14738: }
14739: }
14740:
14741: sub rndseed_64bit3 {
14742: my ($symb,$courseid,$domain,$username)=@_;
14743: {
14744: use integer;
14745: # strings need to be an even # of cahracters long, it it is odd the
14746: # last characters gets thrown away
14747: my $symbchck=unpack("%32S*",$symb.' ') << 21;
14748: my $symbseed=numval2($symb) << 10;
14749: my $namechck=unpack("%32S*",$username.' ');
14750:
14751: my $nameseed=numval2($username) << 21;
14752: my $domainseed=unpack("%32S*",$domain.' ') << 10;
14753: my $courseseed=unpack("%32S*",$courseid.' ');
14754:
14755: my $num1=$symbchck+$symbseed+$namechck;
14756: my $num2=$nameseed+$domainseed+$courseseed;
14757: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
14758: #&logthis("rndseed :$num1:$num2:$_64bit");
14759: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
14760:
14761: return "$num1:$num2";
14762: }
14763: }
14764:
14765: sub rndseed_64bit4 {
14766: my ($symb,$courseid,$domain,$username)=@_;
14767: {
14768: use integer;
14769: # strings need to be an even # of cahracters long, it it is odd the
14770: # last characters gets thrown away
14771: my $symbchck=unpack("%32S*",$symb.' ') << 21;
14772: my $symbseed=numval3($symb) << 10;
14773: my $namechck=unpack("%32S*",$username.' ');
14774:
14775: my $nameseed=numval3($username) << 21;
14776: my $domainseed=unpack("%32S*",$domain.' ') << 10;
14777: my $courseseed=unpack("%32S*",$courseid.' ');
14778:
14779: my $num1=$symbchck+$symbseed+$namechck;
14780: my $num2=$nameseed+$domainseed+$courseseed;
14781: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
14782: #&logthis("rndseed :$num1:$num2:$_64bit");
14783: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
14784:
14785: return "$num1:$num2";
14786: }
14787: }
14788:
14789: sub rndseed_64bit5 {
14790: my ($symb,$courseid,$domain,$username)=@_;
14791: my ($num1,$num2)=&digest("$symb,$courseid,$domain,$username");
14792: return "$num1:$num2";
14793: }
14794:
14795: sub rndseed_CODE_64bit {
14796: my ($symb,$courseid,$domain,$username)=@_;
14797: {
14798: use integer;
14799: my $symbchck=unpack("%32S*",$symb.' ') << 16;
14800: my $symbseed=numval2($symb);
14801: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
14802: my $CODEseed=numval(&getCODE());
14803: my $courseseed=unpack("%32S*",$courseid.' ');
14804: my $num1=$symbseed+$CODEchck;
14805: my $num2=$CODEseed+$courseseed+$symbchck;
14806: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
14807: #&logthis("rndseed :$num1:$num2:$symb");
14808: if ($_64bit) { $num1=(($num1<<32)>>32); }
14809: if ($_64bit) { $num2=(($num2<<32)>>32); }
14810: return "$num1:$num2";
14811: }
14812: }
14813:
14814: sub rndseed_CODE_64bit4 {
14815: my ($symb,$courseid,$domain,$username)=@_;
14816: {
14817: use integer;
14818: my $symbchck=unpack("%32S*",$symb.' ') << 16;
14819: my $symbseed=numval3($symb);
14820: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
14821: my $CODEseed=numval3(&getCODE());
14822: my $courseseed=unpack("%32S*",$courseid.' ');
14823: my $num1=$symbseed+$CODEchck;
14824: my $num2=$CODEseed+$courseseed+$symbchck;
14825: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
14826: #&logthis("rndseed :$num1:$num2:$symb");
14827: if ($_64bit) { $num1=(($num1<<32)>>32); }
14828: if ($_64bit) { $num2=(($num2<<32)>>32); }
14829: return "$num1:$num2";
14830: }
14831: }
14832:
14833: sub rndseed_CODE_64bit5 {
14834: my ($symb,$courseid,$domain,$username)=@_;
14835: my $code = &getCODE();
14836: my ($num1,$num2)=&digest("$symb,$courseid,$code");
14837: return "$num1:$num2";
14838: }
14839:
14840: sub setup_random_from_rndseed {
14841: my ($rndseed)=@_;
14842: if ($rndseed =~/([,:])/) {
14843: my ($num1,$num2) = map { abs($_); } (split(/[,:]/,$rndseed));
14844: if ((!$num1) || (!$num2) || ($num1 > 2147483562) || ($num2 > 2147483398)) {
14845: &Math::Random::random_set_seed_from_phrase($rndseed);
14846: } else {
14847: &Math::Random::random_set_seed($num1,$num2);
14848: }
14849: } else {
14850: &Math::Random::random_set_seed_from_phrase($rndseed);
14851: }
14852: }
14853:
14854: sub latest_receipt_algorithm_id {
14855: return 'receipt3';
14856: }
14857:
14858: sub recunique {
14859: my $fucourseid=shift;
14860: my $unique;
14861: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' ||
14862: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
14863: $unique=$env{"course.$fucourseid.internal.encseed"};
14864: } else {
14865: $unique=$perlvar{'lonReceipt'};
14866: }
14867: return unpack("%32C*",$unique);
14868: }
14869:
14870: sub recprefix {
14871: my $fucourseid=shift;
14872: my $prefix;
14873: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2'||
14874: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
14875: $prefix=$env{"course.$fucourseid.internal.encpref"};
14876: } else {
14877: $prefix=$perlvar{'lonHostID'};
14878: }
14879: return unpack("%32C*",$prefix);
14880: }
14881:
14882: sub ireceipt {
14883: my ($funame,$fudom,$fucourseid,$fusymb,$part)=@_;
14884:
14885: my $return =&recprefix($fucourseid).'-';
14886:
14887: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt3' ||
14888: $env{'request.state'} eq 'construct') {
14889: $return .= (&digest("$funame,$fudom,$fucourseid,$fusymb,$part")%10000);
14890: return $return;
14891: }
14892:
14893: my $cuname=unpack("%32C*",$funame);
14894: my $cudom=unpack("%32C*",$fudom);
14895: my $cucourseid=unpack("%32C*",$fucourseid);
14896: my $cusymb=unpack("%32C*",$fusymb);
14897: my $cunique=&recunique($fucourseid);
14898: my $cpart=unpack("%32S*",$part);
14899: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') {
14900:
14901: #&logthis("doing receipt2 using parts $cpart, uname $cuname and udom $cudom gets ".($cpart%$cuname)." and ".($cpart%$cudom));
14902:
14903: $return.= ($cunique%$cuname+
14904: $cunique%$cudom+
14905: $cusymb%$cuname+
14906: $cusymb%$cudom+
14907: $cucourseid%$cuname+
14908: $cucourseid%$cudom+
14909: $cpart%$cuname+
14910: $cpart%$cudom);
14911: } else {
14912: $return.= ($cunique%$cuname+
14913: $cunique%$cudom+
14914: $cusymb%$cuname+
14915: $cusymb%$cudom+
14916: $cucourseid%$cuname+
14917: $cucourseid%$cudom);
14918: }
14919: return $return;
14920: }
14921:
14922: sub receipt {
14923: my ($part)=@_;
14924: my ($symb,$courseid,$domain,$name) = &whichuser();
14925: return &ireceipt($name,$domain,$courseid,$symb,$part);
14926: }
14927:
14928: sub whichuser {
14929: my ($passedsymb)=@_;
14930: my ($symb,$courseid,$domain,$name,$publicuser);
14931: if (defined($env{'form.grade_symb'})) {
14932: my ($tmp_courseid)=&get_env_multiple('form.grade_courseid');
14933: my $allowed=&allowed('vgr',$tmp_courseid);
14934: if (!$allowed &&
14935: exists($env{'request.course.sec'}) &&
14936: $env{'request.course.sec'} !~ /^\s*$/) {
14937: $allowed=&allowed('vgr',$tmp_courseid.
14938: '/'.$env{'request.course.sec'});
14939: }
14940: if ($allowed) {
14941: ($symb)=&get_env_multiple('form.grade_symb');
14942: $courseid=$tmp_courseid;
14943: ($domain)=&get_env_multiple('form.grade_domain');
14944: ($name)=&get_env_multiple('form.grade_username');
14945: return ($symb,$courseid,$domain,$name,$publicuser);
14946: }
14947: }
14948: if (!$passedsymb) {
14949: $symb=&symbread();
14950: } else {
14951: $symb=$passedsymb;
14952: }
14953: $courseid=$env{'request.course.id'};
14954: $domain=$env{'user.domain'};
14955: $name=$env{'user.name'};
14956: if ($name eq 'public' && $domain eq 'public') {
14957: if (!defined($env{'form.username'})) {
14958: $env{'form.username'}.=time.rand(10000000);
14959: }
14960: $name.=$env{'form.username'};
14961: }
14962: return ($symb,$courseid,$domain,$name,$publicuser);
14963:
14964: }
14965:
14966: # ------------------------------------------------------------ Serves up a file
14967: # returns either the contents of the file or
14968: # -1 if the file doesn't exist
14969: #
14970: # if the target is a file that was uploaded via DOCS,
14971: # a check will be made to see if a current copy exists on the local server,
14972: # if it does this will be served, otherwise a copy will be retrieved from
14973: # the home server for the course and stored in /home/httpd/html/userfiles on
14974: # the local server.
14975:
14976: sub getfile {
14977: my ($file) = @_;
14978: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
14979: &repcopy($file);
14980: return &readfile($file);
14981: }
14982:
14983: sub repcopy_userfile {
14984: my ($file)=@_;
14985: my $londocroot = $perlvar{'lonDocRoot'};
14986: if ($file =~ m{^/*(uploaded|editupload)/}) { $file=&filelocation("",$file); }
14987: if ($file =~ m{^\Q/home/httpd/lonUsers/\E}) { return 'ok'; }
14988: my ($cdom,$cnum,$filename) =
14989: ($file=~m|^\Q$perlvar{'lonDocRoot'}\E/+userfiles/+($match_domain)/+($match_name)/+(.*)|);
14990: my $uri="/uploaded/$cdom/$cnum/$filename";
14991: if (-e "$file") {
14992: # we already have a local copy, check it out
14993: my @fileinfo = stat($file);
14994: my $rtncode;
14995: my $info;
14996: my $lwpresp = &getuploaded('HEAD',$uri,$cdom,$cnum,\$info,\$rtncode);
14997: if ($lwpresp ne 'ok') {
14998: # there is no such file anymore, even though we had a local copy
14999: if ($rtncode eq '404') {
15000: unlink($file);
15001: }
15002: return -1;
15003: }
15004: if ($info < $fileinfo[9]) {
15005: # nice, the file we have is up-to-date, just say okay
15006: return 'ok';
15007: } else {
15008: # the file is outdated, get rid of it
15009: unlink($file);
15010: }
15011: }
15012: # one way or the other, at this point, we don't have the file
15013: # construct the correct path for the file
15014: my @parts = ($cdom,$cnum);
15015: if ($filename =~ m|^(.+)/[^/]+$|) {
15016: push @parts, split(/\//,$1);
15017: }
15018: my $path = $perlvar{'lonDocRoot'}.'/userfiles';
15019: foreach my $part (@parts) {
15020: $path .= '/'.$part;
15021: if (!-e $path) {
15022: mkdir($path,0770);
15023: }
15024: }
15025: # now the path exists for sure
15026: # get a user agent
15027: my $transferfile=$file.'.in.transfer';
15028: # FIXME: this should flock
15029: if (-e $transferfile) { return 'ok'; }
15030: my $request;
15031: $uri=~s/^\///;
15032: my $homeserver = &homeserver($cnum,$cdom);
15033: my $hostname = &hostname($homeserver);
15034: my $protocol = $protocol{$homeserver};
15035: $protocol = 'http' if ($protocol ne 'https');
15036: $request=new HTTP::Request('GET',$protocol.'://'.$hostname.'/raw/'.$uri);
15037: my $response = &LONCAPA::LWPReq::makerequest($homeserver,$request,$transferfile,\%perlvar,'',0,1);
15038: # did it work?
15039: if ($response->is_error()) {
15040: unlink($transferfile);
15041: &logthis("Userfile repcopy failed for $uri");
15042: return -1;
15043: }
15044: # worked, rename the transfer file
15045: rename($transferfile,$file);
15046: return 'ok';
15047: }
15048:
15049: sub tokenwrapper {
15050: my $uri=shift;
15051: $uri=~s|^https?\://([^/]+)||;
15052: $uri=~s|^/||;
15053: $env{'user.environment'}=~/\/([^\/]+)\.id/;
15054: my $token=$1;
15055: my (undef,$udom,$uname,$file)=split('/',$uri,4);
15056: if ($udom && $uname && $file) {
15057: $file=~s|(\?\.*)*$||;
15058: &appenv({"userfile.$udom/$uname/$file" => $env{'request.course.id'}});
15059: my $homeserver = &homeserver($uname,$udom);
15060: my $hostname = &hostname($homeserver);
15061: my $protocol = $protocol{$homeserver};
15062: $protocol = 'http' if ($protocol ne 'https');
15063: return $protocol.'://'.$hostname.'/'.$uri.
15064: (($uri=~/\?/)?'&':'?').'token='.$token.
15065: '&tokenissued='.$perlvar{'lonHostID'};
15066: } else {
15067: return '/adm/notfound.html';
15068: }
15069: }
15070:
15071: # call with reqtype HEAD: get last modification time
15072: # call with reqtype GET: get the file contents
15073: # Do not call this with reqtype GET for large files! It loads everything into memory
15074: #
15075: sub getuploaded {
15076: my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_;
15077: $uri=~s/^\///;
15078: my $homeserver = &homeserver($cnum,$cdom);
15079: my $hostname = &hostname($homeserver);
15080: my $protocol = $protocol{$homeserver};
15081: $protocol = 'http' if ($protocol ne 'https');
15082: $uri = $protocol.'://'.$hostname.'/raw/'.$uri;
15083: my $request=new HTTP::Request($reqtype,$uri);
15084: my $response=&LONCAPA::LWPReq::makerequest($homeserver,$request,'',\%perlvar,'',0,1);
15085: $$rtncode = $response->code;
15086: if (! $response->is_success()) {
15087: return 'failed';
15088: }
15089: if ($reqtype eq 'HEAD') {
15090: $$info = &HTTP::Date::str2time( $response->header('Last-modified') );
15091: } elsif ($reqtype eq 'GET') {
15092: $$info = $response->content;
15093: }
15094: return 'ok';
15095: }
15096:
15097: sub readfile {
15098: my $file = shift;
15099: if ( (! -e $file ) || ($file eq '') ) { return -1; };
15100: my $fh;
15101: open($fh,"<",$file);
15102: my $a='';
15103: while (my $line = <$fh>) { $a .= $line; }
15104: return $a;
15105: }
15106:
15107: sub filelocation {
15108: my ($dir,$file) = @_;
15109: my $location;
15110: $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
15111:
15112: if ($file =~ m-^/adm/-) {
15113: $file=~s-^/adm/wrapper/-/-;
15114: $file=~s-^/adm/coursedocs/showdoc/-/-;
15115: }
15116:
15117: if ($file =~ m-^\Q$Apache::lonnet::perlvar{'lonTabDir'}\E/-) {
15118: $location = $file;
15119: } elsif ($file=~/^\/*(uploaded|editupload)/) { # is an uploaded file
15120: my ($udom,$uname,$filename)=
15121: ($file=~m -^/+(?:uploaded|editupload)/+($match_domain)/+($match_name)/+(.*)$-);
15122: my $home=&homeserver($uname,$udom);
15123: my $is_me=0;
15124: my @ids=¤t_machine_ids();
15125: foreach my $id (@ids) { if ($id eq $home) { $is_me=1; } }
15126: if ($is_me) {
15127: $location=propath($udom,$uname).'/userfiles/'.$filename;
15128: } else {
15129: $location=$Apache::lonnet::perlvar{'lonDocRoot'}.'/userfiles/'.
15130: $udom.'/'.$uname.'/'.$filename;
15131: }
15132: } elsif ($file =~ m-^/adm/-) {
15133: $location = $perlvar{'lonDocRoot'}.'/'.$file;
15134: } else {
15135: $file=~s/^\Q$perlvar{'lonDocRoot'}\E//;
15136: $file=~s:^/(res|priv)/:/:;
15137: my $space=$1;
15138: if ( !( $file =~ m:^/:) ) {
15139: $location = $dir. '/'.$file;
15140: } else {
15141: $location = $perlvar{'lonDocRoot'}.'/'.$space.$file;
15142: }
15143: }
15144: $location=~s://+:/:g; # remove duplicate /
15145: while ($location=~m{/\.\./}) {
15146: if ($location =~ m{/[^/]+/\.\./}) {
15147: $location=~ s{/[^/]+/\.\./}{/}g;
15148: } else {
15149: $location=~ s{/\.\./}{/}g;
15150: }
15151: } #remove dir/..
15152: while ($location=~m:/\./:) {$location=~ s:/\./:/:g;} #remove /./
15153: return $location;
15154: }
15155:
15156: sub hreflocation {
15157: my ($dir,$file)=@_;
15158: unless (($file=~m-^https?\://-i) || ($file=~m-^/-)) {
15159: $file=filelocation($dir,$file);
15160: } elsif ($file=~m-^/adm/-) {
15161: $file=~s-^/adm/wrapper/-/-;
15162: $file=~s-^/adm/coursedocs/showdoc/-/-;
15163: }
15164: if ($file=~m-^\Q$perlvar{'lonDocRoot'}\E-) {
15165: $file=~s-^\Q$perlvar{'lonDocRoot'}\E--;
15166: } elsif ($file=~m-^\Q$perlvar{'lonUsersDir'}\E-) {
15167: $file=~s{^/home/httpd/lonUsers/($match_domain)/./././($match_name)/userfiles/}
15168: {/uploaded/$1/$2/}x;
15169: }
15170: if ($file=~ m{^/userfiles/}) {
15171: $file =~ s{^/userfiles/}{/uploaded/};
15172: }
15173: return $file;
15174: }
15175:
15176:
15177:
15178:
15179:
15180: sub current_machine_domains {
15181: return &machine_domains(&hostname($perlvar{'lonHostID'}));
15182: }
15183:
15184: sub machine_domains {
15185: my ($hostname) = @_;
15186: my @domains;
15187: my %hostname = &all_hostnames();
15188: while( my($id, $name) = each(%hostname)) {
15189: # &logthis("-$id-$name-$hostname-");
15190: if ($hostname eq $name) {
15191: push(@domains,&host_domain($id));
15192: }
15193: }
15194: return @domains;
15195: }
15196:
15197: sub current_machine_ids {
15198: return &machine_ids(&hostname($perlvar{'lonHostID'}));
15199: }
15200:
15201: sub machine_ids {
15202: my ($hostname) = @_;
15203: $hostname ||= &hostname($perlvar{'lonHostID'});
15204: my @ids;
15205: my %name_to_host = &all_names();
15206: if (ref($name_to_host{$hostname}) eq 'ARRAY') {
15207: return @{ $name_to_host{$hostname} };
15208: }
15209: return;
15210: }
15211:
15212: sub additional_machine_domains {
15213: my @domains;
15214: if (-e "$perlvar{'lonTabDir'}/expected_domains.tab") {
15215: if (open(my $fh,"<","$perlvar{'lonTabDir'}/expected_domains.tab")) {
15216: while (my $line = <$fh>) {
15217: chomp($line);
15218: $line =~ s/\s//g;
15219: push(@domains,$line);
15220: }
15221: close($fh);
15222: }
15223: }
15224: return @domains;
15225: }
15226:
15227: sub default_login_domain {
15228: my $domain = $perlvar{'lonDefDomain'};
15229: my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0];
15230: foreach my $posdom (¤t_machine_domains(),
15231: &additional_machine_domains()) {
15232: if (lc($posdom) eq lc($testdomain)) {
15233: $domain=$posdom;
15234: last;
15235: }
15236: }
15237: return $domain;
15238: }
15239:
15240: sub shared_institution {
15241: my ($dom,$lonhost) = @_;
15242: if ($lonhost eq '') {
15243: $lonhost = $perlvar{'lonHostID'};
15244: }
15245: my $same_intdom;
15246: my $hostintdom = &internet_dom($lonhost);
15247: if ($hostintdom ne '') {
15248: my %iphost = &get_iphost();
15249: my $primary_id = &domain($dom,'primary');
15250: my $primary_ip = &get_host_ip($primary_id);
15251: if (ref($iphost{$primary_ip}) eq 'ARRAY') {
15252: foreach my $id (@{$iphost{$primary_ip}}) {
15253: my $intdom = &internet_dom($id);
15254: if ($intdom eq $hostintdom) {
15255: $same_intdom = 1;
15256: last;
15257: }
15258: }
15259: }
15260: }
15261: return $same_intdom;
15262: }
15263:
15264: sub uses_sts {
15265: my ($ignore_cache) = @_;
15266: my $lonhost = $perlvar{'lonHostID'};
15267: my $hostname = &hostname($lonhost);
15268: my $sts_on;
15269: if ($protocol{$lonhost} eq 'https') {
15270: my $cachetime = 12*3600;
15271: if (!$ignore_cache) {
15272: ($sts_on,my $cached)=&is_cached_new('stspolicy',$lonhost);
15273: if (defined($cached)) {
15274: return $sts_on;
15275: }
15276: }
15277: my $url = $protocol{$lonhost}.'://'.$hostname.'/index.html';
15278: my $request=new HTTP::Request('HEAD',$url);
15279: my $response=&LONCAPA::LWPReq::makerequest($lonhost,$request,'',\%perlvar,'','','',1);
15280: if ($response->is_success) {
15281: my $has_sts = $response->header('Strict-Transport-Security');
15282: if ($has_sts eq '') {
15283: $sts_on = 0;
15284: } else {
15285: if ($has_sts =~ /\Qmax-age=\E(\d+)/) {
15286: my $maxage = $1;
15287: if ($maxage) {
15288: $sts_on = 1;
15289: } else {
15290: $sts_on = 0;
15291: }
15292: } else {
15293: $sts_on = 0;
15294: }
15295: }
15296: return &do_cache_new('stspolicy',$lonhost,$sts_on,$cachetime);
15297: }
15298: }
15299: return;
15300: }
15301:
15302: sub waf_allssl {
15303: my ($host_name) = @_;
15304: my $alias = &get_proxy_alias();
15305: if ($host_name eq '') {
15306: $host_name = $ENV{'SERVER_NAME'};
15307: }
15308: if (($host_name ne '') && ($alias eq $host_name)) {
15309: my $serverhomedom = &host_domain($perlvar{'lonHostID'});
15310: my %defdomdefaults = &get_domain_defaults($serverhomedom);
15311: if ($defdomdefaults{'waf_sslopt'}) {
15312: return $defdomdefaults{'waf_sslopt'};
15313: }
15314: }
15315: return;
15316: }
15317:
15318: sub get_requestor_ip {
15319: my ($r,$nolookup,$noproxy) = @_;
15320: my $from_ip;
15321: if (ref($r)) {
15322: if ($r->can('useragent_ip')) {
15323: if ($noproxy && $r->can('client_ip')) {
15324: $from_ip = $r->client_ip();
15325: } else {
15326: $from_ip = $r->useragent_ip();
15327: }
15328: } elsif ($r->connection->can('remote_ip')) {
15329: $from_ip = $r->connection->remote_ip();
15330: } else {
15331: $from_ip = $r->get_remote_host($nolookup);
15332: }
15333: } else {
15334: $from_ip = $ENV{'REMOTE_ADDR'};
15335: }
15336: return $from_ip if ($noproxy);
15337: # Who controls proxy settings for server
15338: my $dom_in_use = $Apache::lonnet::perlvar{'lonDefDomain'};
15339: my $proxyinfo = &get_proxy_settings($dom_in_use);
15340: if ((ref($proxyinfo) eq 'HASH') && ($from_ip)) {
15341: if ($proxyinfo->{'vpnint'}) {
15342: if (&ip_match($from_ip,$proxyinfo->{'vpnint'})) {
15343: return $from_ip;
15344: }
15345: }
15346: if ($proxyinfo->{'trusted'}) {
15347: if (&ip_match($from_ip,$proxyinfo->{'trusted'})) {
15348: my $ipheader = $proxyinfo->{'ipheader'};
15349: my ($ip,$xfor);
15350: if (ref($r)) {
15351: if ($ipheader) {
15352: $ip = $r->headers_in->{$ipheader};
15353: }
15354: $xfor = $r->headers_in->{'X-Forwarded-For'};
15355: } else {
15356: if ($ipheader) {
15357: $ip = $ENV{'HTTP_'.uc($ipheader)};
15358: }
15359: $xfor = $ENV{'HTTP_X_FORWARDED_FOR'};
15360: }
15361: if (($ip eq '') && ($xfor ne '')) {
15362: foreach my $poss_ip (reverse(split(/\s*,\s*/,$xfor))) {
15363: unless (&ip_match($poss_ip,$proxyinfo->{'trusted'})) {
15364: $ip = $poss_ip;
15365: last;
15366: }
15367: }
15368: }
15369: if ($ip ne '') {
15370: return $ip;
15371: }
15372: }
15373: }
15374: }
15375: return $from_ip;
15376: }
15377:
15378: sub get_proxy_settings {
15379: my ($dom_in_use) = @_;
15380: my %domdefaults = &get_domain_defaults($dom_in_use);
15381: my $proxyinfo = {
15382: ipheader => $domdefaults{'waf_ipheader'},
15383: trusted => $domdefaults{'waf_trusted'},
15384: vpnint => $domdefaults{'waf_vpnint'},
15385: vpnext => $domdefaults{'waf_vpnext'},
15386: sslopt => $domdefaults{'waf_sslopt'},
15387: };
15388: return $proxyinfo;
15389: }
15390:
15391: sub ip_match {
15392: my ($ip,$pattern_str) = @_;
15393: $ip=Net::CIDR::cidrvalidate($ip);
15394: if ($ip) {
15395: return Net::CIDR::cidrlookup($ip,split(/\s*,\s*/,$pattern_str));
15396: }
15397: return;
15398: }
15399:
15400: sub get_proxy_alias {
15401: my ($lonid) = @_;
15402: if ($lonid eq '') {
15403: $lonid = $perlvar{'lonHostID'};
15404: }
15405: if (!defined(&hostname($lonid))) {
15406: return;
15407: }
15408: if ($lonid ne '') {
15409: my ($alias,$cached) = &is_cached_new('proxyalias',$lonid);
15410: if ($cached) {
15411: return $alias;
15412: }
15413: my $dom = &host_domain($lonid);
15414: if ($dom ne '') {
15415: my $cachetime = 60*60*24;
15416: my %domconfig =
15417: &get_dom('configuration',['wafproxy'],$dom);
15418: if (ref($domconfig{'wafproxy'}) eq 'HASH') {
15419: if (ref($domconfig{'wafproxy'}{'alias'}) eq 'HASH') {
15420: $alias = $domconfig{'wafproxy'}{'alias'}{$lonid};
15421: }
15422: }
15423: return &do_cache_new('proxyalias',$lonid,$alias,$cachetime);
15424: }
15425: }
15426: return;
15427: }
15428:
15429: sub use_proxy_alias {
15430: my ($r,$lonid) = @_;
15431: my $alias = &get_proxy_alias($lonid);
15432: if ($alias) {
15433: my $dom = &host_domain($lonid);
15434: if ($dom ne '') {
15435: my $proxyinfo = &get_proxy_settings($dom);
15436: my ($vpnint,$remote_ip);
15437: if (ref($proxyinfo) eq 'HASH') {
15438: $vpnint = $proxyinfo->{'vpnint'};
15439: if ($vpnint) {
15440: $remote_ip = &get_requestor_ip($r,1,1);
15441: }
15442: }
15443: unless ($vpnint && &ip_match($remote_ip,$vpnint)) {
15444: return $alias;
15445: }
15446: }
15447: }
15448: return;
15449: }
15450:
15451: sub alias_sso {
15452: my ($lonid) = @_;
15453: if ($lonid eq '') {
15454: $lonid = $perlvar{'lonHostID'};
15455: }
15456: if (!defined(&hostname($lonid))) {
15457: return;
15458: }
15459: if ($lonid ne '') {
15460: my ($use_alias,$cached) = &is_cached_new('proxysaml',$lonid);
15461: if ($cached) {
15462: return $use_alias;
15463: }
15464: my $dom = &host_domain($lonid);
15465: if ($dom ne '') {
15466: my $cachetime = 60*60*24;
15467: my %domconfig =
15468: &get_dom('configuration',['wafproxy'],$dom);
15469: if (ref($domconfig{'wafproxy'}) eq 'HASH') {
15470: if (ref($domconfig{'wafproxy'}{'saml'}) eq 'HASH') {
15471: $use_alias = $domconfig{'wafproxy'}{'saml'}{$lonid};
15472: }
15473: }
15474: return &do_cache_new('proxysaml',$lonid,$use_alias,$cachetime);
15475: }
15476: }
15477: return;
15478: }
15479:
15480: sub get_saml_landing {
15481: my ($lonid) = @_;
15482: if ($lonid eq '') {
15483: my $defdom = &default_login_domain();
15484: my @hosts = ¤t_machine_ids();
15485: if (@hosts > 1) {
15486: foreach my $hostid (@hosts) {
15487: if (&host_domain($hostid) eq $defdom) {
15488: $lonid = $hostid;
15489: last;
15490: }
15491: }
15492: } else {
15493: $lonid = $perlvar{'lonHostID'};
15494: }
15495: if ($lonid) {
15496: unless (&host_domain($lonid) eq $defdom) {
15497: return;
15498: }
15499: } else {
15500: return;
15501: }
15502: } elsif (!defined(&hostname($lonid))) {
15503: return;
15504: }
15505: my ($landing,$cached) = &is_cached_new('samllanding',$lonid);
15506: if ($cached) {
15507: return $landing;
15508: }
15509: my $dom = &host_domain($lonid);
15510: if ($dom ne '') {
15511: my $cachetime = 60*60*24;
15512: my %domconfig =
15513: &get_dom('configuration',['login'],$dom);
15514: if (ref($domconfig{'login'}) eq 'HASH') {
15515: if (ref($domconfig{'login'}{'saml'}) eq 'HASH') {
15516: if (ref($domconfig{'login'}{'saml'}{$lonid}) eq 'HASH') {
15517: $landing = 1;
15518: }
15519: }
15520: }
15521: return &do_cache_new('samllanding',$lonid,$landing,$cachetime);
15522: }
15523: return;
15524: }
15525:
15526: # ------------------------------------------------------------- Declutters URLs
15527:
15528: sub declutter {
15529: my $thisfn=shift;
15530: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
15531: unless ($thisfn=~m{^/home/httpd/html/priv/}) {
15532: $thisfn=~s{^/home/httpd/html}{};
15533: }
15534: $thisfn=~s/^\///;
15535: $thisfn=~s|^adm/wrapper/||;
15536: $thisfn=~s|^adm/coursedocs/showdoc/||;
15537: $thisfn=~s/^res\///;
15538: $thisfn=~s/^priv\///;
15539: unless (($thisfn =~ /^ext/) || ($thisfn =~ /\.(page|sequence)___\d+___ext/)) {
15540: $thisfn=~s/\?.+$//;
15541: }
15542: return $thisfn;
15543: }
15544:
15545: # ------------------------------------------------------------- Clutter up URLs
15546:
15547: sub clutter {
15548: my $thisfn='/'.&declutter(shift);
15549: if ($thisfn !~ m{^/(uploaded|editupload|adm|userfiles|ext|raw|priv|public)/}
15550: || $thisfn =~ m{^/adm/(includes|pages)} ) {
15551: $thisfn='/res'.$thisfn;
15552: }
15553: if ($thisfn !~m|^/adm|) {
15554: if ($thisfn =~ m|^/ext/|) {
15555: $thisfn='/adm/wrapper'.$thisfn;
15556: } else {
15557: my ($ext) = ($thisfn =~ /\.(\w+)$/);
15558: my $embstyle=&Apache::loncommon::fileembstyle($ext);
15559: if ($embstyle eq 'ssi'
15560: || ($embstyle eq 'hdn')
15561: || ($embstyle eq 'rat')
15562: || ($embstyle eq 'prv')
15563: || ($embstyle eq 'ign')) {
15564: #do nothing with these
15565: } elsif (($embstyle eq 'img')
15566: || ($embstyle eq 'emb')
15567: || ($embstyle eq 'wrp')) {
15568: $thisfn='/adm/wrapper'.$thisfn;
15569: } elsif ($embstyle eq 'unk'
15570: && $thisfn!~/\.(sequence|page)$/) {
15571: $thisfn='/adm/coursedocs/showdoc'.$thisfn;
15572: } else {
15573: # &logthis("Got a blank emb style");
15574: }
15575: }
15576: } elsif ($thisfn =~ m{^/adm/$match_domain/$match_courseid/\d+/ext\.tool$}) {
15577: $thisfn='/adm/wrapper'.$thisfn;
15578: }
15579: return $thisfn;
15580: }
15581:
15582: sub clutter_with_no_wrapper {
15583: my $uri = &clutter(shift);
15584: if ($uri =~ m-^/adm/-) {
15585: $uri =~ s-^/adm/wrapper/-/-;
15586: $uri =~ s-^/adm/coursedocs/showdoc/-/-;
15587: }
15588: return $uri;
15589: }
15590:
15591: sub freeze_escape {
15592: my ($value)=@_;
15593: if (ref($value)) {
15594: $value=&nfreeze($value);
15595: return '__FROZEN__'.&escape($value);
15596: }
15597: return &escape($value);
15598: }
15599:
15600:
15601: sub thaw_unescape {
15602: my ($value)=@_;
15603: if ($value =~ /^__FROZEN__/) {
15604: substr($value,0,10,undef);
15605: $value=&unescape($value);
15606: return &thaw($value);
15607: }
15608: return &unescape($value);
15609: }
15610:
15611: sub correct_line_ends {
15612: my ($result)=@_;
15613: $$result =~s/\r\n/\n/mg;
15614: $$result =~s/\r/\n/mg;
15615: }
15616: # ================================================================ Main Program
15617:
15618: sub goodbye {
15619: &logthis("Starting Shut down");
15620: #not converted to using infrastruture and probably shouldn't be
15621: &logthis(sprintf("%-20s is %s",'%badServerCache',length(&nfreeze(\%badServerCache))));
15622: #converted
15623: # &logthis(sprintf("%-20s is %s",'%metacache',scalar(%metacache)));
15624: &logthis(sprintf("%-20s is %s",'%homecache',length(&nfreeze(\%homecache))));
15625: # &logthis(sprintf("%-20s is %s",'%titlecache',length(&nfreeze(\%titlecache))));
15626: # &logthis(sprintf("%-20s is %s",'%courseresdatacache',length(&nfreeze(\%courseresdatacache))));
15627: #1.1 only
15628: # &logthis(sprintf("%-20s is %s",'%userresdatacache',length(&nfreeze(\%userresdatacache))));
15629: # &logthis(sprintf("%-20s is %s",'%getsectioncache',length(&nfreeze(\%getsectioncache))));
15630: # &logthis(sprintf("%-20s is %s",'%courseresversioncache',length(&nfreeze(\%courseresversioncache))));
15631: # &logthis(sprintf("%-20s is %s",'%resversioncache',length(&nfreeze(\%resversioncache))));
15632: &logthis(sprintf("%-20s is %s",'%remembered',length(&nfreeze(\%remembered))));
15633: &logthis(sprintf("%-20s is %s",'kicks',$kicks));
15634: &logthis(sprintf("%-20s is %s",'hits',$hits));
15635: &flushcourselogs();
15636: &logthis("Shutting down");
15637: }
15638:
15639: sub get_dns {
15640: my ($url,$func,$ignore_cache,$nocache,$hashref) = @_;
15641: if (!$ignore_cache) {
15642: my ($content,$cached)=
15643: &is_cached_new('dns',$url);
15644: if ($cached) {
15645: &$func($content,$hashref);
15646: return;
15647: }
15648: }
15649:
15650: my %alldns;
15651: if (open(my $config,"<","$perlvar{'lonTabDir'}/hosts.tab")) {
15652: foreach my $dns (<$config>) {
15653: next if ($dns !~ /^\^(\S*)/x);
15654: my $line = $1;
15655: my ($host,$protocol) = split(/:/,$line);
15656: if ($protocol ne 'https') {
15657: $protocol = 'http';
15658: }
15659: $alldns{$host} = $protocol;
15660: }
15661: close($config);
15662: }
15663: while (%alldns) {
15664: my ($dns) = sort { $b cmp $a } keys(%alldns);
15665: my ($contents,@content);
15666: if ($dns eq Sys::Hostname::FQDN::fqdn()) {
15667: my $command = (split('/',$url))[3];
15668: my ($dir,$file) = &parse_getdns_url($command,$url);
15669: delete($alldns{$dns});
15670: next if (($dir eq '') || ($file eq ''));
15671: if (open(my $config,'<',"$dir/$file")) {
15672: @content = <$config>;
15673: close($config);
15674: }
15675: if ($url eq '/adm/dns/loncapaCRL') {
15676: $contents = join('',@content);
15677: }
15678: } else {
15679: my $request=new HTTP::Request('GET',"$alldns{$dns}://$dns$url");
15680: my $response = &LONCAPA::LWPReq::makerequest('',$request,'',\%perlvar,30,0);
15681: delete($alldns{$dns});
15682: next if ($response->is_error());
15683: if ($url eq '/adm/dns/loncapaCRL') {
15684: $contents = $response->content;
15685: } else {
15686: @content = split("\n",$response->content);
15687: }
15688: }
15689: if ($url eq '/adm/dns/loncapaCRL') {
15690: return &$func($contents);
15691: } else {
15692: unless ($nocache) {
15693: &do_cache_new('dns',$url,\@content,30*24*60*60);
15694: }
15695: &$func(\@content,$hashref);
15696: return;
15697: }
15698: }
15699: my $which = (split('/',$url,4))[3];
15700: if ($which eq 'loncapaCRL') {
15701: my $diskfile = "$perlvar{'lonCertificateDirectory'}/$perlvar{'lonnetCertRevocationList'}";
15702: if (-e $diskfile) {
15703: &logthis("unable to contact DNS, on disk file $diskfile not updated");
15704: } else {
15705: &logthis("unable to contact DNS, no on disk file $diskfile available");
15706: }
15707: } else {
15708: &logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n");
15709: if (open(my $config,"<","$perlvar{'lonTabDir'}/dns_$which.tab")) {
15710: my @content = <$config>;
15711: close($config);
15712: &$func(\@content,$hashref);
15713: }
15714: }
15715: return;
15716: }
15717:
15718: # ------------------------------------------------------Get DNS checksums file
15719: sub parse_dns_checksums_tab {
15720: my ($lines,$hashref) = @_;
15721: my $lonhost = $perlvar{'lonHostID'};
15722: my $machine_dom = &host_domain($lonhost);
15723: my $loncaparev = &get_server_loncaparev($machine_dom);
15724: my $distro = (split(/\:/,&get_server_distarch($lonhost)))[0];
15725: my $webconfdir = '/etc/httpd/conf';
15726: if ($distro =~ /^(ubuntu|debian)(\d+)$/) {
15727: $webconfdir = '/etc/apache2';
15728: } elsif ($distro =~ /^sles(\d+)$/) {
15729: if ($1 >= 10) {
15730: $webconfdir = '/etc/apache2';
15731: }
15732: } elsif ($distro =~ /^suse(\d+\.\d+)$/) {
15733: if ($1 >= 10.0) {
15734: $webconfdir = '/etc/apache2';
15735: }
15736: }
15737: my ($release,$timestamp) = split(/\-/,$loncaparev);
15738: my (%chksum,%revnum);
15739: if (ref($lines) eq 'ARRAY') {
15740: chomp(@{$lines});
15741: my $version = shift(@{$lines});
15742: if ($version eq $release) {
15743: foreach my $line (@{$lines}) {
15744: my ($file,$version,$shasum) = split(/,/,$line);
15745: if ($file =~ m{^/etc/httpd/conf}) {
15746: if ($webconfdir eq '/etc/apache2') {
15747: $file =~ s{^\Q/etc/httpd/conf/\E}{$webconfdir/};
15748: }
15749: }
15750: $chksum{$file} = $shasum;
15751: $revnum{$file} = $version;
15752: }
15753: if (ref($hashref) eq 'HASH') {
15754: %{$hashref} = (
15755: sums => \%chksum,
15756: versions => \%revnum,
15757: );
15758: }
15759: }
15760: }
15761: return;
15762: }
15763:
15764: sub fetch_dns_checksums {
15765: my %checksums;
15766: my $machine_dom = &host_domain($perlvar{'lonHostID'});
15767: my $loncaparev = &get_server_loncaparev($machine_dom,$perlvar{'lonHostID'});
15768: my ($release,$timestamp) = split(/\-/,$loncaparev);
15769: &get_dns("/adm/dns/checksums/$release",\&parse_dns_checksums_tab,1,1,
15770: \%checksums);
15771: return \%checksums;
15772: }
15773:
15774: sub fetch_crl_pemfile {
15775: return &get_dns("/adm/dns/loncapaCRL",\&save_crl_pem,1,1);
15776: }
15777:
15778: sub save_crl_pem {
15779: my ($content) = @_;
15780: my ($msg,$hadchanges);
15781: if ($content ne '') {
15782: my $now = time;
15783: my $lonca = $perlvar{'lonCertificateDirectory'}.'/'.$perlvar{'lonnetCertificateAuthority'};
15784: my $tmpcrl = $tmpdir.'/'.$perlvar{'lonnetCertRevocationList'}.'_'.$now.'.'.$$.'.tmp';
15785: if (open(my $fh,'>',"$tmpcrl")) {
15786: print $fh $content;
15787: close($fh);
15788: if (-e $lonca) {
15789: if (open(PIPE,"openssl crl -in $tmpcrl -inform pem -CAfile $lonca -noout 2>&1 |")) {
15790: my $check = <PIPE>;
15791: close(PIPE);
15792: chomp($check);
15793: if ($check eq 'verify OK') {
15794: my $dest = "$perlvar{'lonCertificateDirectory'}/$perlvar{'lonnetCertRevocationList'}";
15795: my $backup;
15796: if (-e $dest) {
15797: if (&File::Copy::move($dest,"$dest.bak")) {
15798: $backup = 'ok';
15799: }
15800: }
15801: if (&File::Copy::move($tmpcrl,$dest)) {
15802: $msg = 'ok';
15803: if ($backup) {
15804: my (%oldnums,%newnums);
15805: if (open(PIPE, "openssl crl -inform PEM -text -noout -in $dest.bak |grep 'Serial Number' |")) {
15806: while (<PIPE>) {
15807: $oldnums{(split(/:/))[1]} = 1;
15808: }
15809: close(PIPE);
15810: }
15811: if (open(PIPE, "openssl crl -inform PEM -text -noout -in $dest |grep 'Serial Number' |")) {
15812: while(<PIPE>) {
15813: $newnums{(split(/:/))[1]} = 1;
15814: }
15815: close(PIPE);
15816: }
15817: foreach my $key (sort {$b <=> $a } (keys(%newnums))) {
15818: unless (exists($oldnums{$key})) {
15819: $hadchanges = 1;
15820: last;
15821: }
15822: }
15823: unless ($hadchanges) {
15824: foreach my $key (sort {$b <=> $a } (keys(%oldnums))) {
15825: unless (exists($newnums{$key})) {
15826: $hadchanges = 1;
15827: last;
15828: }
15829: }
15830: }
15831: }
15832: }
15833: } else {
15834: unlink($tmpcrl);
15835: }
15836: } else {
15837: unlink($tmpcrl);
15838: }
15839: } else {
15840: unlink($tmpcrl);
15841: }
15842: }
15843: }
15844: return ($msg,$hadchanges);
15845: }
15846:
15847: sub parse_getdns_url {
15848: my ($command,$url) = @_;
15849: my $dir = $perlvar{'lonTabDir'};
15850: my $file;
15851: if ($command eq 'hosts') {
15852: $file = 'dns_hosts.tab';
15853: } elsif ($command eq 'domain') {
15854: $file = 'dns_domain.tab';
15855: } elsif ($command eq 'checksums') {
15856: my $version = (split('/',$url))[4];
15857: $file = "dns_checksums/$version.tab",
15858: } elsif ($command eq 'loncapaCRL') {
15859: $dir = $perlvar{'lonCertificateDirectory'};
15860: $file = $perlvar{'lonnetCertRevocationList'};
15861: }
15862: return ($dir,$file);
15863: }
15864:
15865: # ------------------------------------------------------------ Read domain file
15866: {
15867: my $loaded;
15868: my %domain;
15869:
15870: sub parse_domain_tab {
15871: my ($lines) = @_;
15872: foreach my $line (@$lines) {
15873: next if ($line =~ /^(\#|\s*$ )/x);
15874:
15875: chomp($line);
15876: my ($name,@elements) = split(/:/,$line,9);
15877: my %this_domain;
15878: foreach my $field ('description', 'auth_def', 'auth_arg_def',
15879: 'lang_def', 'city', 'longi', 'lati',
15880: 'primary') {
15881: $this_domain{$field} = shift(@elements);
15882: }
15883: $domain{$name} = \%this_domain;
15884: }
15885: }
15886:
15887: sub reset_domain_info {
15888: undef($loaded);
15889: undef(%domain);
15890: }
15891:
15892: sub load_domain_tab {
15893: my ($ignore_cache,$nocache) = @_;
15894: &get_dns('/adm/dns/domain',\&parse_domain_tab,$ignore_cache,$nocache);
15895: my $fh;
15896: if (open($fh,"<",$perlvar{'lonTabDir'}.'/domain.tab')) {
15897: my @lines = <$fh>;
15898: &parse_domain_tab(\@lines);
15899: }
15900: close($fh);
15901: $loaded = 1;
15902: }
15903:
15904: sub domain {
15905: &load_domain_tab() if (!$loaded);
15906:
15907: my ($name,$what) = @_;
15908: return if ( !exists($domain{$name}) );
15909:
15910: if (!$what) {
15911: return $domain{$name}{'description'};
15912: }
15913: return $domain{$name}{$what};
15914: }
15915:
15916: sub domain_info {
15917: &load_domain_tab() if (!$loaded);
15918: return %domain;
15919: }
15920:
15921: }
15922:
15923:
15924: # ------------------------------------------------------------- Read hosts file
15925: {
15926: my %hostname;
15927: my %hostdom;
15928: my %libserv;
15929: my $loaded;
15930: my %name_to_host;
15931: my %internetdom;
15932: my %LC_dns_serv;
15933:
15934: sub parse_hosts_tab {
15935: my ($file) = @_;
15936: foreach my $configline (@$file) {
15937: next if ($configline =~ /^(\#|\s*$ )/x);
15938: chomp($configline);
15939: if ($configline =~ /^\^/) {
15940: if ($configline =~ /^\^([\w.\-]+)/) {
15941: $LC_dns_serv{$1} = 1;
15942: }
15943: next;
15944: }
15945: my ($id,$domain,$role,$name,$protocol,$intdom)=split(/:/,$configline);
15946: $name=~s/\s//g;
15947: if ($id && $domain && $role && $name) {
15948: if ((exists($hostname{$id})) && ($hostname{$id} ne '')) {
15949: my $curr = $hostname{$id};
15950: my $skip;
15951: if (ref($name_to_host{$curr}) eq 'ARRAY') {
15952: if (($curr eq $name) && (@{$name_to_host{$curr}} == 1)) {
15953: $skip = 1;
15954: } else {
15955: @{$name_to_host{$curr}} = grep { $_ ne $id } @{$name_to_host{$curr}};
15956: }
15957: }
15958: unless ($skip) {
15959: push(@{$name_to_host{$name}},$id);
15960: }
15961: } else {
15962: push(@{$name_to_host{$name}},$id);
15963: }
15964: $hostname{$id}=$name;
15965: $hostdom{$id}=$domain;
15966: if ($role eq 'library') { $libserv{$id}=$name; }
15967: if (defined($protocol)) {
15968: if ($protocol eq 'https') {
15969: $protocol{$id} = $protocol;
15970: } else {
15971: $protocol{$id} = 'http';
15972: }
15973: } else {
15974: $protocol{$id} = 'http';
15975: }
15976: if (defined($intdom)) {
15977: $internetdom{$id} = $intdom;
15978: }
15979: }
15980: }
15981: }
15982:
15983: sub reset_hosts_info {
15984: &purge_remembered();
15985: &reset_domain_info();
15986: &reset_hosts_ip_info();
15987: undef(%internetdom);
15988: undef(%name_to_host);
15989: undef(%hostname);
15990: undef(%hostdom);
15991: undef(%libserv);
15992: undef($loaded);
15993: }
15994:
15995: sub load_hosts_tab {
15996: my ($ignore_cache,$nocache) = @_;
15997: &get_dns('/adm/dns/hosts',\&parse_hosts_tab,$ignore_cache,$nocache);
15998: open(my $config,"<","$perlvar{'lonTabDir'}/hosts.tab");
15999: my @config = <$config>;
16000: &parse_hosts_tab(\@config);
16001: close($config);
16002: $loaded=1;
16003: }
16004:
16005: sub hostname {
16006: &load_hosts_tab() if (!$loaded);
16007:
16008: my ($lonid) = @_;
16009: return $hostname{$lonid};
16010: }
16011:
16012: sub all_hostnames {
16013: &load_hosts_tab() if (!$loaded);
16014:
16015: return %hostname;
16016: }
16017:
16018: sub all_names {
16019: my ($ignore_cache,$nocache) = @_;
16020: &load_hosts_tab($ignore_cache,$nocache) if (!$loaded);
16021:
16022: return %name_to_host;
16023: }
16024:
16025: sub all_host_domain {
16026: &load_hosts_tab() if (!$loaded);
16027: return %hostdom;
16028: }
16029:
16030: sub all_host_intdom {
16031: &load_hosts_tab() if (!$loaded);
16032: return %internetdom;
16033: }
16034:
16035: sub is_library {
16036: &load_hosts_tab() if (!$loaded);
16037:
16038: return exists($libserv{$_[0]});
16039: }
16040:
16041: sub all_library {
16042: &load_hosts_tab() if (!$loaded);
16043:
16044: return %libserv;
16045: }
16046:
16047: sub unique_library {
16048: #2x reverse removes all hostnames that appear more than once
16049: my %unique = reverse &all_library();
16050: return reverse %unique;
16051: }
16052:
16053: sub get_servers {
16054: &load_hosts_tab() if (!$loaded);
16055:
16056: my ($domain,$type) = @_;
16057: my %possible_hosts = ($type eq 'library') ? %libserv
16058: : %hostname;
16059: my %result;
16060: if (ref($domain) eq 'ARRAY') {
16061: while ( my ($host,$hostname) = each(%possible_hosts)) {
16062: if (grep(/^\Q$hostdom{$host}\E$/,@$domain)) {
16063: $result{$host} = $hostname;
16064: }
16065: }
16066: } else {
16067: while ( my ($host,$hostname) = each(%possible_hosts)) {
16068: if ($hostdom{$host} eq $domain) {
16069: $result{$host} = $hostname;
16070: }
16071: }
16072: }
16073: return %result;
16074: }
16075:
16076: sub get_unique_servers {
16077: my %unique = reverse &get_servers(@_);
16078: return reverse %unique;
16079: }
16080:
16081: sub host_domain {
16082: &load_hosts_tab() if (!$loaded);
16083:
16084: my ($lonid) = @_;
16085: return $hostdom{$lonid};
16086: }
16087:
16088: sub all_domains {
16089: &load_hosts_tab() if (!$loaded);
16090:
16091: my %seen;
16092: my @uniq = grep(!$seen{$_}++, values(%hostdom));
16093: return @uniq;
16094: }
16095:
16096: sub internet_dom {
16097: &load_hosts_tab() if (!$loaded);
16098:
16099: my ($lonid) = @_;
16100: return $internetdom{$lonid};
16101: }
16102:
16103: sub is_LC_dns {
16104: &load_hosts_tab() if (!$loaded);
16105:
16106: my ($hostname) = @_;
16107: return exists($LC_dns_serv{$hostname});
16108: }
16109:
16110: }
16111:
16112: {
16113: my %iphost;
16114: my %name_to_ip;
16115: my %lonid_to_ip;
16116:
16117: sub get_hosts_from_ip {
16118: my ($ip) = @_;
16119: my %iphosts = &get_iphost();
16120: if (ref($iphosts{$ip})) {
16121: return @{$iphosts{$ip}};
16122: }
16123: return;
16124: }
16125:
16126: sub reset_hosts_ip_info {
16127: undef(%iphost);
16128: undef(%name_to_ip);
16129: undef(%lonid_to_ip);
16130: }
16131:
16132: sub get_host_ip {
16133: my ($lonid) = @_;
16134: if (exists($lonid_to_ip{$lonid})) {
16135: return $lonid_to_ip{$lonid};
16136: }
16137: my $name=&hostname($lonid);
16138: my $ip = gethostbyname($name);
16139: return if (!$ip || length($ip) ne 4);
16140: $ip=inet_ntoa($ip);
16141: $name_to_ip{$name} = $ip;
16142: $lonid_to_ip{$lonid} = $ip;
16143: return $ip;
16144: }
16145:
16146: sub get_iphost {
16147: my ($ignore_cache,$nocache) = @_;
16148:
16149: if (!$ignore_cache) {
16150: if (%iphost) {
16151: return %iphost;
16152: }
16153: my ($ip_info,$cached)=
16154: &is_cached_new('iphost','iphost');
16155: if ($cached) {
16156: %iphost = %{$ip_info->[0]};
16157: %name_to_ip = %{$ip_info->[1]};
16158: %lonid_to_ip = %{$ip_info->[2]};
16159: return %iphost;
16160: }
16161: }
16162:
16163: # get yesterday's info for fallback
16164: my %old_name_to_ip;
16165: my ($ip_info,$cached)=
16166: &is_cached_new('iphost','iphost');
16167: if ($cached) {
16168: %old_name_to_ip = %{$ip_info->[1]};
16169: }
16170:
16171: my %name_to_host = &all_names($ignore_cache,$nocache);
16172: foreach my $name (keys(%name_to_host)) {
16173: my $ip;
16174: if (!exists($name_to_ip{$name})) {
16175: $ip = gethostbyname($name);
16176: if (!$ip || length($ip) ne 4) {
16177: if (defined($old_name_to_ip{$name})) {
16178: $ip = $old_name_to_ip{$name};
16179: &logthis("Can't find $name defaulting to old $ip");
16180: } else {
16181: &logthis("Name $name no IP found");
16182: next;
16183: }
16184: } else {
16185: $ip=inet_ntoa($ip);
16186: }
16187: $name_to_ip{$name} = $ip;
16188: } else {
16189: $ip = $name_to_ip{$name};
16190: }
16191: foreach my $id (@{ $name_to_host{$name} }) {
16192: $lonid_to_ip{$id} = $ip;
16193: }
16194: push(@{$iphost{$ip}},@{$name_to_host{$name}});
16195: }
16196: unless ($nocache) {
16197: &do_cache_new('iphost','iphost',
16198: [\%iphost,\%name_to_ip,\%lonid_to_ip],
16199: 48*60*60);
16200: }
16201:
16202: return %iphost;
16203: }
16204:
16205: #
16206: # Given a DNS returns the loncapa host name for that DNS
16207: #
16208: sub host_from_dns {
16209: my ($dns) = @_;
16210: my @hosts;
16211: my $ip;
16212:
16213: if (exists($name_to_ip{$dns})) {
16214: $ip = $name_to_ip{$dns};
16215: }
16216: if (!$ip) {
16217: $ip = gethostbyname($dns); # Initial translation to IP is in net order.
16218: if (length($ip) == 4) {
16219: $ip = &IO::Socket::inet_ntoa($ip);
16220: }
16221: }
16222: if ($ip) {
16223: @hosts = get_hosts_from_ip($ip);
16224: return $hosts[0];
16225: }
16226: return undef;
16227: }
16228:
16229: sub get_internet_names {
16230: my ($lonid) = @_;
16231: return if ($lonid eq '');
16232: my ($idnref,$cached)=
16233: &is_cached_new('internetnames',$lonid);
16234: if ($cached) {
16235: return $idnref;
16236: }
16237: my $ip = &get_host_ip($lonid);
16238: my @hosts = &get_hosts_from_ip($ip);
16239: my %iphost = &get_iphost();
16240: my (@idns,%seen);
16241: foreach my $id (@hosts) {
16242: my $dom = &host_domain($id);
16243: my $prim_id = &domain($dom,'primary');
16244: my $prim_ip = &get_host_ip($prim_id);
16245: next if ($seen{$prim_ip});
16246: if (ref($iphost{$prim_ip}) eq 'ARRAY') {
16247: foreach my $id (@{$iphost{$prim_ip}}) {
16248: my $intdom = &internet_dom($id);
16249: unless (grep(/^\Q$intdom\E$/,@idns)) {
16250: push(@idns,$intdom);
16251: }
16252: }
16253: }
16254: $seen{$prim_ip} = 1;
16255: }
16256: return &do_cache_new('internetnames',$lonid,\@idns,12*60*60);
16257: }
16258:
16259: }
16260:
16261: sub all_loncaparevs {
16262: return qw(1.1 1.2 1.3 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11);
16263: }
16264:
16265: # ---------------------------------------------------------- Read loncaparev table
16266: {
16267: sub load_loncaparevs {
16268: if (-e "$perlvar{'lonTabDir'}/loncaparevs.tab") {
16269: if (open(my $config,"<","$perlvar{'lonTabDir'}/loncaparevs.tab")) {
16270: while (my $configline=<$config>) {
16271: chomp($configline);
16272: my ($hostid,$loncaparev)=split(/:/,$configline);
16273: $loncaparevs{$hostid}=$loncaparev;
16274: }
16275: close($config);
16276: }
16277: }
16278: }
16279: }
16280:
16281: # ---------------------------------------------------------- Read serverhostID table
16282: {
16283: sub load_serverhomeIDs {
16284: if (-e "$perlvar{'lonTabDir'}/serverhomeIDs.tab") {
16285: if (open(my $config,"<","$perlvar{'lonTabDir'}/serverhomeIDs.tab")) {
16286: while (my $configline=<$config>) {
16287: chomp($configline);
16288: my ($name,$id)=split(/:/,$configline);
16289: $serverhomeIDs{$name}=$id;
16290: }
16291: close($config);
16292: }
16293: }
16294: }
16295: }
16296:
16297:
16298: BEGIN {
16299:
16300: # ----------------------------------- Read loncapa.conf and loncapa_apache.conf
16301: unless ($readit) {
16302: {
16303: my $configvars = LONCAPA::Configuration::read_conf('loncapa.conf');
16304: %perlvar = (%perlvar,%{$configvars});
16305: }
16306:
16307:
16308: # ------------------------------------------------------ Read spare server file
16309: {
16310: open(my $config,"<","$perlvar{'lonTabDir'}/spare.tab");
16311:
16312: while (my $configline=<$config>) {
16313: chomp($configline);
16314: if ($configline) {
16315: my ($host,$type) = split(':',$configline,2);
16316: if (!defined($type) || $type eq '') { $type = 'default' };
16317: push(@{ $spareid{$type} }, $host);
16318: }
16319: }
16320: close($config);
16321: }
16322: # ------------------------------------------------------------ Read permissions
16323: {
16324: open(my $config,"<","$perlvar{'lonTabDir'}/roles.tab");
16325:
16326: while (my $configline=<$config>) {
16327: chomp($configline);
16328: if ($configline) {
16329: my ($role,$perm)=split(/ /,$configline);
16330: if ($perm ne '') { $pr{$role}=$perm; }
16331: }
16332: }
16333: close($config);
16334: }
16335:
16336: # -------------------------------------------- Read plain texts for permissions
16337: {
16338: open(my $config,"<","$perlvar{'lonTabDir'}/rolesplain.tab");
16339:
16340: while (my $configline=<$config>) {
16341: chomp($configline);
16342: if ($configline) {
16343: my ($short,@plain)=split(/:/,$configline);
16344: %{$prp{$short}} = ();
16345: if (@plain > 0) {
16346: $prp{$short}{'std'} = $plain[0];
16347: for (my $i=1; $i<@plain; $i++) {
16348: $prp{$short}{'alt'.$i} = $plain[$i];
16349: }
16350: }
16351: }
16352: }
16353: close($config);
16354: }
16355:
16356: # ---------------------------------------------------------- Read package table
16357: {
16358: open(my $config,"<","$perlvar{'lonTabDir'}/packages.tab");
16359:
16360: while (my $configline=<$config>) {
16361: if ($configline !~ /\S/ || $configline=~/^#/) { next; }
16362: chomp($configline);
16363: my ($short,$plain)=split(/:/,$configline);
16364: my ($pack,$name)=split(/\&/,$short);
16365: if ($plain ne '') {
16366: $packagetab{$pack.'&'.$name.'&name'}=$name;
16367: $packagetab{$short}=$plain;
16368: }
16369: }
16370: close($config);
16371: }
16372:
16373: # ---------------------------------------------------------- Read loncaparev table
16374:
16375: &load_loncaparevs();
16376:
16377: # ---------------------------------------------------------- Read serverhostID table
16378:
16379: &load_serverhomeIDs();
16380:
16381: # ---------------------------------------------------------- Read releaseslist XML
16382: {
16383: my $file = $Apache::lonnet::perlvar{'lonTabDir'}.'/releaseslist.xml';
16384: if (-e $file) {
16385: my $parser = HTML::LCParser->new($file);
16386: while (my $token = $parser->get_token()) {
16387: if ($token->[0] eq 'S') {
16388: my $item = $token->[1];
16389: my $name = $token->[2]{'name'};
16390: my $value = $token->[2]{'value'};
16391: my $valuematch = $token->[2]{'valuematch'};
16392: my $namematch = $token->[2]{'namematch'};
16393: if ($item eq 'parameter') {
16394: if (($namematch ne '') || (($name ne '') && ($value ne '' || $valuematch ne ''))) {
16395: my $release = $parser->get_text();
16396: $release =~ s/(^\s*|\s*$ )//gx;
16397: $needsrelease{$item.':'.$name.':'.$value.':'.$valuematch.':'.$namematch} = $release;
16398: }
16399: } elsif ($item ne '' && $name ne '') {
16400: my $release = $parser->get_text();
16401: $release =~ s/(^\s*|\s*$ )//gx;
16402: $needsrelease{$item.':'.$name.':'.$value} = $release;
16403: }
16404: }
16405: }
16406: }
16407: }
16408:
16409: # ---------------------------------------------------------- Read managers table
16410: {
16411: if (-e "$perlvar{'lonTabDir'}/managers.tab") {
16412: if (open(my $config,"<","$perlvar{'lonTabDir'}/managers.tab")) {
16413: while (my $configline=<$config>) {
16414: chomp($configline);
16415: next if ($configline =~ /^\#/);
16416: if (($configline =~ /^[\w\-]+$/) || ($configline =~ /^[\w\-]+\:[\w\-]+$/)) {
16417: $managerstab{$configline} = 1;
16418: }
16419: }
16420: close($config);
16421: }
16422: }
16423: }
16424:
16425: # ------------- set up temporary directory
16426: {
16427: $tmpdir = LONCAPA::tempdir();
16428:
16429: }
16430:
16431: # ------------- set default texengine (domain default overrides this)
16432: {
16433: $deftex = LONCAPA::texengine();
16434: }
16435:
16436: # ------------- set default minimum length for passwords for internal auth users
16437: {
16438: $passwdmin = LONCAPA::passwd_min();
16439: }
16440:
16441: $memcache=new Cache::Memcached({'servers' => ['127.0.0.1:11211'],
16442: 'compress_threshold'=> 20_000,
16443: });
16444:
16445: $processmarker='_'.time.'_'.$perlvar{'lonHostID'};
16446: $dumpcount=0;
16447: $locknum=0;
16448:
16449: &logtouch();
16450: &logthis('<font color="yellow">INFO: Read configuration</font>');
16451: $readit=1;
16452: {
16453: use integer;
16454: my $test=(2**32)+1;
16455: if ($test != 0) { $_64bit=1; } else { $_64bit=0; }
16456: &logthis(" Detected 64bit platform ($_64bit)");
16457: }
16458: }
16459: }
16460:
16461: 1;
16462: __END__
16463:
16464: =pod
16465:
16466: =head1 NAME
16467:
16468: Apache::lonnet - Subroutines to ask questions about things in the network.
16469:
16470: =head1 SYNOPSIS
16471:
16472: Invoked by other LON-CAPA modules, when they need to talk to or about objects in the network.
16473:
16474: &Apache::lonnet::SUBROUTINENAME(ARGUMENTS);
16475:
16476: Common parameters:
16477:
16478: =over 4
16479:
16480: =item *
16481:
16482: $uname : an internal username (if $cname expecting a course Id specifically)
16483:
16484: =item *
16485:
16486: $udom : a domain (if $cdom expecting a course's domain specifically)
16487:
16488: =item *
16489:
16490: $symb : a resource instance identifier
16491:
16492: =item *
16493:
16494: $namespace : the name of a .db file that contains the data needed or
16495: being set.
16496:
16497: =back
16498:
16499: =head1 OVERVIEW
16500:
16501: lonnet provides subroutines which interact with the
16502: lonc/lond (TCP) network layer of LON-CAPA. They can be used to ask
16503: about classes, users, and resources.
16504:
16505: For many of these objects you can also use this to store data about
16506: them or modify them in various ways.
16507:
16508: =head2 Symbs
16509:
16510: To identify a specific instance of a resource, LON-CAPA uses symbols
16511: or "symbs"X<symb>. These identifiers are built from the URL of the
16512: map, the resource number of the resource in the map, and the URL of
16513: the resource itself. The latter is somewhat redundant, but might help
16514: if maps change.
16515:
16516: An example is
16517:
16518: msu/korte/parts/part1.sequence___19___msu/korte/tests/part12.problem
16519:
16520: The respective map entry is
16521:
16522: <resource id="19" src="/res/msu/korte/tests/part12.problem"
16523: title="Problem 2">
16524: </resource>
16525:
16526: Symbs are used by the random number generator, as well as to store and
16527: restore data specific to a certain instance of for example a problem.
16528:
16529: =head2 Storing And Retrieving Data
16530:
16531: X<store()>X<cstore()>X<restore()>Three of the most important functions
16532: in C<lonnet.pm> are C<&Apache::lonnet::cstore()>,
16533: C<&Apache::lonnet:restore()>, and C<&Apache::lonnet::store()>, which
16534: is is the non-critical message twin of cstore. These functions are for
16535: handlers to store a perl hash to a user's permanent data space in an
16536: easy manner, and to retrieve it again on another call. It is expected
16537: that a handler would use this once at the beginning to retrieve data,
16538: and then again once at the end to send only the new data back.
16539:
16540: The data is stored in the user's data directory on the user's
16541: homeserver under the ID of the course.
16542:
16543: The hash that is returned by restore will have all of the previous
16544: value for all of the elements of the hash.
16545:
16546: Example:
16547:
16548: #creating a hash
16549: my %hash;
16550: $hash{'foo'}='bar';
16551:
16552: #storing it
16553: &Apache::lonnet::cstore(\%hash);
16554:
16555: #changing a value
16556: $hash{'foo'}='notbar';
16557:
16558: #adding a new value
16559: $hash{'bar'}='foo';
16560: &Apache::lonnet::cstore(\%hash);
16561:
16562: #retrieving the hash
16563: my %history=&Apache::lonnet::restore();
16564:
16565: #print the hash
16566: foreach my $key (sort(keys(%history))) {
16567: print("\%history{$key} = $history{$key}");
16568: }
16569:
16570: Will print out:
16571:
16572: %history{1:foo} = bar
16573: %history{1:keys} = foo:timestamp
16574: %history{1:timestamp} = 990455579
16575: %history{2:bar} = foo
16576: %history{2:foo} = notbar
16577: %history{2:keys} = foo:bar:timestamp
16578: %history{2:timestamp} = 990455580
16579: %history{bar} = foo
16580: %history{foo} = notbar
16581: %history{timestamp} = 990455580
16582: %history{version} = 2
16583:
16584: Note that the special hash entries C<keys>, C<version> and
16585: C<timestamp> were added to the hash. C<version> will be equal to the
16586: total number of versions of the data that have been stored. The
16587: C<timestamp> attribute will be the UNIX time the hash was
16588: stored. C<keys> is available in every historical section to list which
16589: keys were added or changed at a specific historical revision of a
16590: hash.
16591:
16592: B<Warning>: do not store the hash that restore returns directly. This
16593: will cause a mess since it will restore the historical keys as if the
16594: were new keys. I.E. 1:foo will become 1:1:foo etc.
16595:
16596: Calling convention:
16597:
16598: my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname);
16599: &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$laststore);
16600:
16601: For more detailed information, see lonnet specific documentation.
16602:
16603: =head1 RETURN MESSAGES
16604:
16605: =over 4
16606:
16607: =item * B<con_lost>: unable to contact remote host
16608:
16609: =item * B<con_delayed>: unable to contact remote host, message will be delivered
16610: when the connection is brought back up
16611:
16612: =item * B<con_failed>: unable to contact remote host and unable to save message
16613: for later delivery
16614:
16615: =item * B<error:>: an error a occurred, a description of the error follows the :
16616:
16617: =item * B<no_such_host>: unable to fund a host associated with the user/domain
16618: that was requested
16619:
16620: =back
16621:
16622: =head1 PUBLIC SUBROUTINES
16623:
16624: =head2 Session Environment Functions
16625:
16626: =over 4
16627:
16628: =item *
16629: X<appenv()>
16630: B<appenv($hashref,$rolesarrayref)>: the value of %{$hashref} is written to
16631: the user envirnoment file, and will be restored for each access this
16632: user makes during this session, also modifies the %env for the current
16633: process. Optional rolesarrayref - if defined contains a reference to an array
16634: of roles which are exempt from the restriction on modifying user.role entries
16635: in the user's environment.db and in %env.
16636:
16637: =item *
16638: X<delenv()>
16639: B<delenv($delthis,$regexp)>: removes all items from the session
16640: environment file that begin with $delthis. If the
16641: optional second arg - $regexp - is true, $delthis is treated as a
16642: regular expression, otherwise \Q$delthis\E is used.
16643: The values are also deleted from the current processes %env.
16644:
16645: =item * get_env_multiple($name)
16646:
16647: gets $name from the %env hash, it seemlessly handles the cases where multiple
16648: values may be defined and end up as an array ref.
16649:
16650: returns an array of values
16651:
16652: =back
16653:
16654: =head2 User Information
16655:
16656: =over 4
16657:
16658: =item *
16659: X<queryauthenticate()>
16660: B<queryauthenticate($uname,$udom)>: try to determine user's current
16661: authentication scheme
16662:
16663: =item *
16664: X<authenticate()>
16665: B<authenticate($uname,$upass,$udom,$checkdefauth,$clientcancheckhost)>: try to
16666: authenticate user from domain's lib servers (first use the current
16667: one). C<$upass> should be the users password.
16668: $checkdefauth is optional (value is 1 if a check should be made to
16669: authenticate user using default authentication method, and allow
16670: account creation if username does not have account in the domain).
16671: $clientcancheckhost is optional (value is 1 if checking whether the
16672: server can host will occur on the client side in lonauth.pm).
16673:
16674: =item *
16675: X<homeserver()>
16676: B<homeserver($uname,$udom)>: find the server which has
16677: the user's directory and files (there must be only one), this caches
16678: the answer, and also caches if there is a borken connection.
16679:
16680: =item *
16681: X<idget()>
16682: B<idget($udom,$idsref,$namespace)>: find the usernames behind either
16683: a list of student/employee IDs or clicker IDs
16684: (student/employee IDs are a unique resource in a domain, there must be
16685: only 1 ID per username, and only 1 username per ID in a specific domain).
16686: clickerIDs are not necessarily unique, as students might share clickers.
16687: (returns hash: id=>name,id=>name)
16688:
16689: =item *
16690: X<idrget()>
16691: B<idrget($udom,@unames)>: find the IDs behind a list of
16692: usernames (returns hash: name=>id,name=>id)
16693:
16694: =item *
16695: X<idput()>
16696: B<idput($udom,$idsref,$uhome,$namespace)>: store away a list of
16697: names and associated student/employee IDs or clicker IDs.
16698:
16699: =item *
16700: X<iddel()>
16701: B<iddel($udom,$idshashref,$uhome,$namespace)>: delete unwanted
16702: student/employee ID or clicker ID username look-ups from domain.
16703: The homeserver ($uhome) and namespace ($namespace) are optional.
16704: If no $uhome is provided, it will be determined usig &homeserver()
16705: for each user. If no $namespace is provided, the default is ids.
16706:
16707: =item *
16708: X<updateclickers()>
16709: B<updateclickers($udom,$action,$idshashref,$uhome,$critical)>: update
16710: clicker ID-to-username look-ups in clickers.db on library server.
16711: Permitted actions are add or del (i.e., add or delete). The
16712: clickers.db contains clickerID as keys (escaped), and each corresponding
16713: value is an escaped comma-separated list of usernames (for whom the
16714: library server is the homeserver), who registered that particular ID.
16715: If $critical is true, the update will be sent via &critical, otherwise
16716: &reply() will be used.
16717:
16718: =item *
16719: X<rolesinit()>
16720: B<rolesinit($udom,$username)>: get user privileges.
16721: returns user role, first access and timer interval hashes
16722:
16723: =item *
16724: X<privileged()>
16725: B<privileged($username,$domain)>: returns a true if user has a
16726: privileged and active role (i.e. su or dc), false otherwise.
16727:
16728: =item *
16729: X<getsection()>
16730: B<getsection($udom,$uname,$cname)>: finds the section of student in the
16731: course $cname, return section name/number or '' for "not in course"
16732: and '-1' for "no section"
16733:
16734: =item *
16735: X<userenvironment()>
16736: B<userenvironment($udom,$uname,@what)>: gets the values of the keys
16737: passed in @what from the requested user's environment, returns a hash
16738:
16739: =item *
16740: X<userlog_query()>
16741: B<userlog_query($uname,$udom,%filters)>: retrieves data from a user's
16742: activity.log file. %filters defines filters applied when parsing the
16743: log file. These can be start or end timestamps, or the type of action
16744: - log to look for Login or Logout events, check for Checkin or
16745: Checkout, role for role selection. The response is in the form
16746: timestamp1:hostid1:event1×tamp2:hostid2:event2 where events are
16747: escaped strings of the action recorded in the activity.log file.
16748:
16749: =back
16750:
16751: =head2 User Roles
16752:
16753: =over 4
16754:
16755: =item *
16756:
16757: allowed($priv,$uri,$symb,$role,$clientip,$noblockcheck) : check for a user privilege;
16758: returns codes for allowed actions.
16759:
16760: The first argument is required, all others are optional.
16761:
16762: $priv is the privilege being checked.
16763: $uri contains additional information about what is being checked for access (e.g.,
16764: URL, course ID etc.).
16765: $symb is the unique resource instance identifier in a course; if needed,
16766: but not provided, it will be retrieved via a call to &symbread().
16767: $role is the role for which a priv is being checked (only used if priv is evb).
16768: $clientip is the user's IP address (only used when checking for access to portfolio
16769: files).
16770: $noblockcheck, if true, skips calls to &has_comm_blocking() for the bre priv. This
16771: prevents recursive calls to &allowed.
16772:
16773: F: full access
16774: U,I,K: authentication modes (cxx only)
16775: '': forbidden
16776: 1: user needs to choose course
16777: 2: browse allowed
16778: A: passphrase authentication needed
16779: B: access temporarily blocked because of a blocking event in a course.
16780: D: access blocked because access is required via session initiated via deep-link
16781:
16782: =item *
16783:
16784: constructaccess($url,$setpriv) : check for access to construction space URL
16785:
16786: See if the owner domain and name in the URL match those in the
16787: expected environment. If so, return three element list
16788: ($ownername,$ownerdomain,$ownerhome).
16789:
16790: Otherwise return the null string.
16791:
16792: If second argument 'setpriv' is true, it assigns the privileges,
16793: and returns the same three element list, unless the owner has
16794: blocked "ad hoc" Domain Coordinator access to the Author Space,
16795: in which case the null string is returned.
16796:
16797: =item *
16798:
16799: definerole($rolename,$sysrole,$domrole,$courole,$uname,$udom) : define role;
16800: define a custom role rolename set privileges in format of lonTabs/roles.tab
16801: for system, domain, and course level. $uname and $udom are optional (current
16802: user's username and domain will be used when either of $uname or $udom are absent.
16803:
16804: =item *
16805:
16806: plaintext($short,$type,$cid,$forcedefault) : return value in %prp hash
16807: (rolesplain.tab); plain text explanation of a user role term.
16808: $type is Course (default) or Community.
16809: If $forcedefault evaluates to true, text returned will be default
16810: text for $type. Otherwise, if this is a course, the text returned
16811: will be a custom name for the role (if defined in the course's
16812: environment). If no custom name is defined the default is returned.
16813:
16814: =item *
16815:
16816: get_my_roles($uname,$udom,$context,$types,$roles,$roledoms,$withsec,$hidepriv) :
16817: All arguments are optional. Returns a hash of a roles, either for
16818: co-author/assistant author roles for a user's Construction Space
16819: (default), or if $context is 'userroles', roles for the user himself,
16820: In the hash, keys are set to colon-separated $uname,$udom,$role, and
16821: (optionally) if $withsec is true, a fourth colon-separated item - $section.
16822: For each key, value is set to colon-separated start and end times for
16823: the role. If no username and domain are specified, will default to
16824: current user/domain. Types, roles, and roledoms are references to arrays
16825: of role statuses (active, future or previous), roles
16826: (e.g., cc,in, st etc.) and domains of the roles which can be used
16827: to restrict the list of roles reported. If no array ref is
16828: provided for types, will default to return only active roles.
16829:
16830: =item *
16831:
16832: in_course($udom,$uname,$cdom,$cnum,$type,$hideprivileged) : determine if
16833: user: $uname:$udom has a role in the course: $cdom_$cnum.
16834:
16835: Additional optional arguments are: $type (if role checking is to be restricted
16836: to certain user status types -- previous (expired roles), active (currently
16837: available roles) or future (roles available in the future), and
16838: $hideprivileged -- if true will not report course roles for users who
16839: have active Domain Coordinator role in course's domain or in additional
16840: domains (specified in 'Domains to check for privileged users' in course
16841: environment -- set via: Course Settings -> Classlists and staff listing).
16842:
16843: =item *
16844:
16845: privileged($username,$domain,$possdomains,$possroles) : returns 1 if user
16846: $username:$domain is a privileged user (e.g., Domain Coordinator or Super User)
16847: $possdomains and $possroles are optional array refs -- to domains to check and
16848: roles to check. If $possdomains is not specified, a dump will be done of the
16849: users' roles.db to check for a dc or su role in any domain. This can be
16850: time consuming if &privileged is called repeatedly (e.g., when displaying a
16851: classlist), so in such cases, supplying a $possdomains array is preferred, as
16852: this then allows &privileged_by_domain() to be used, which caches the identity
16853: of privileged users, eliminating the need for repeated calls to &dump().
16854:
16855: =item *
16856:
16857: privileged_by_domain($possdomains,$roles) : returns a hash of a hash of a hash,
16858: where the outer hash keys are domains specified in the $possdomains array ref,
16859: next inner hash keys are privileged roles specified in the $roles array ref,
16860: and the innermost hash contains key = value pairs for username:domain = end:start
16861: for active or future "privileged" users with that role in that domain. To avoid
16862: repeated dumps of domain roles -- via &get_domain_roles() -- contents of the
16863: innerhash are cached using priv_$role and $dom as the identifiers.
16864:
16865: =back
16866:
16867: =head2 User Modification
16868:
16869: =over 4
16870:
16871: =item *
16872:
16873: assignrole($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,$context) : assign role; give a role to a
16874: user for the level given by URL. Optional start and end dates (leave empty
16875: string or zero for "no date")
16876:
16877: =item *
16878:
16879: changepass($uname,$udom,$currentpass,$newpass,$server) : attempts to
16880: change a users, password, possible return values are: ok,
16881: pwchange_failure, non_authorized, auth_mode_error, unknown_user,
16882: refused
16883:
16884: =item *
16885:
16886: modifyuserauth($udom,$uname,$umode,$upass) : modify user authentication
16887:
16888: =item *
16889:
16890: modifyuser($udom,$uname,$uid,$umode,$upass,$first,$middle,$last, $gene,
16891: $forceid,$desiredhome,$email,$inststatus,$candelete) :
16892:
16893: will update user information (firstname,middlename,lastname,generation,
16894: permanentemail), and if forceid is true, student/employee ID also.
16895: A user's institutional affiliation(s) can also be updated.
16896: User information fields will not be overwritten with empty entries
16897: unless the field is included in the $candelete array reference.
16898: This array is included when a single user is modified via "Manage Users",
16899: or when Autoupdate.pl is run by cron in a domain.
16900:
16901: =item *
16902:
16903: modifystudent
16904:
16905: modify a student's enrollment and identification information.
16906: The course id is resolved based on the current user's environment.
16907: This means the invoking user must be a course coordinator or otherwise
16908: associated with a course.
16909:
16910: This call is essentially a wrapper for lonnet::modifyuser and
16911: lonnet::modify_student_enrollment
16912:
16913: Inputs:
16914:
16915: =over 4
16916:
16917: =item B<$udom> Student's loncapa domain
16918:
16919: =item B<$uname> Student's loncapa login name
16920:
16921: =item B<$uid> Student/Employee ID
16922:
16923: =item B<$umode> Student's authentication mode
16924:
16925: =item B<$upass> Student's password
16926:
16927: =item B<$first> Student's first name
16928:
16929: =item B<$middle> Student's middle name
16930:
16931: =item B<$last> Student's last name
16932:
16933: =item B<$gene> Student's generation
16934:
16935: =item B<$usec> Student's section in course
16936:
16937: =item B<$end> Unix time of the roles expiration
16938:
16939: =item B<$start> Unix time of the roles start date
16940:
16941: =item B<$forceid> If defined, allow $uid to be changed
16942:
16943: =item B<$desiredhome> server to use as home server for student
16944:
16945: =item B<$email> Student's permanent e-mail address
16946:
16947: =item B<$type> Type of enrollment (auto or manual)
16948:
16949: =item B<$locktype> boolean - enrollment type locked to prevent Autoenroll.pl changing manual to auto
16950:
16951: =item B<$cid> courseID - needed if a course role is assigned by a user whose current role is DC
16952:
16953: =item B<$selfenroll> boolean - 1 if user role change occurred via self-enrollment
16954:
16955: =item B<$context> role change context (shown in User Management Logs display in a course)
16956:
16957: =item B<$inststatus> institutional status of user - : separated string of escaped status types
16958:
16959: =item B<$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.
16960:
16961: =back
16962:
16963: =item *
16964:
16965: modify_student_enrollment
16966:
16967: Change a student's enrollment status in a class. The environment variable
16968: 'role.request.course' must be defined for this function to proceed.
16969:
16970: Inputs:
16971:
16972: =over 4
16973:
16974: =item $udom, student's domain
16975:
16976: =item $uname, student's name
16977:
16978: =item $uid, student's user id
16979:
16980: =item $first, student's first name
16981:
16982: =item $middle
16983:
16984: =item $last
16985:
16986: =item $gene
16987:
16988: =item $usec
16989:
16990: =item $end
16991:
16992: =item $start
16993:
16994: =item $type
16995:
16996: =item $locktype
16997:
16998: =item $cid
16999:
17000: =item $selfenroll
17001:
17002: =item $context
17003:
17004: =item $credits, number of credits student will earn from this class
17005:
17006: =item $instsec, institutional course section code for student
17007:
17008: =back
17009:
17010:
17011: =item *
17012:
17013: assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start) : assign
17014: custom role; give a custom role to a user for the level given by URL. Specify
17015: name and domain of role author, and role name
17016:
17017: =item *
17018:
17019: revokerole($udom,$uname,$url,$role) : revoke a role for url
17020:
17021: =item *
17022:
17023: revokecustomrole($udom,$uname,$url,$role) : revoke a custom role
17024:
17025: =back
17026:
17027: =head2 Course Infomation
17028:
17029: =over 4
17030:
17031: =item *
17032:
17033: coursedescription($courseid,$options) : returns a hash of information about the
17034: specified course id, including all environment settings for the
17035: course, the description of the course will be in the hash under the
17036: key 'description'
17037:
17038: $options is an optional parameter that if supplied is a hash reference that controls
17039: what how this function works. It has the following key/values:
17040:
17041: =over 4
17042:
17043: =item freshen_cache
17044:
17045: If defined, and the environment cache for the course is valid, it is
17046: returned in the returned hash.
17047:
17048: =item one_time
17049:
17050: If defined, the last cache time is set to _now_
17051:
17052: =item user
17053:
17054: If defined, the supplied username is used instead of the current user.
17055:
17056:
17057: =back
17058:
17059: =item *
17060:
17061: resdata($name,$domain,$type,@which) : request for current parameter
17062: setting for a specific $type, where $type is either 'course' or 'user',
17063: @what should be a list of parameters to ask about. This routine caches
17064: answers for 10 minutes.
17065:
17066: =item *
17067:
17068: get_courseresdata($courseid, $domain) : dump the entire course resource
17069: data base, returning a hash that is keyed by the resource name and has
17070: values that are the resource value. I believe that the timestamps and
17071: versions are also returned.
17072:
17073: =back
17074:
17075: =head2 Course Modification
17076:
17077: =over 4
17078:
17079: =item *
17080:
17081: writecoursepref($courseid,%prefs) : write preferences (environment
17082: database) for a course
17083:
17084: =item *
17085:
17086: createcourse($udom,$description,$url,$course_server,$nonstandard,$inst_code,$course_owner,$crstype,$cnum) : make course
17087:
17088: =item *
17089:
17090: generate_coursenum($udom,$crstype) : get a unique (unused) course number in domain $udom for course type $crstype (Course or Community).
17091:
17092: =item *
17093:
17094: is_course($courseid), is_course($cdom, $cnum)
17095:
17096: Accepts either a combined $courseid (in the form of domain_courseid) or the
17097: two component version $cdom, $cnum. It checks if the specified course exists.
17098:
17099: Returns:
17100: undef if the course doesn't exist, otherwise
17101: in scalar context the combined courseid.
17102: in list context the two components of the course identifier, domain and
17103: courseid.
17104:
17105: =back
17106:
17107: =head2 Bubblesheet Configuration
17108:
17109: =over 4
17110:
17111: =item *
17112:
17113: get_scantron_config($which)
17114:
17115: $which - the name of the configuration to parse from the file.
17116:
17117: Parses and returns the bubblesheet configuration line selected as a
17118: hash of configuration file fields.
17119:
17120:
17121: Returns:
17122: If the named configuration is not in the file, an empty
17123: hash is returned.
17124:
17125: a hash with the fields
17126: name - internal name for the this configuration setup
17127: description - text to display to operator that describes this config
17128: CODElocation - if 0 or the string 'none'
17129: - no CODE exists for this config
17130: if -1 || the string 'letter'
17131: - a CODE exists for this config and is
17132: a string of letters
17133: Unsupported value (but planned for future support)
17134: if a positive integer
17135: - The CODE exists as the first n items from
17136: the question section of the form
17137: if the string 'number'
17138: - The CODE exists for this config and is
17139: a string of numbers
17140: CODEstart - (only matter if a CODE exists) column in the line where
17141: the CODE starts
17142: CODElength - length of the CODE
17143: IDstart - column where the student/employee ID starts
17144: IDlength - length of the student/employee ID info
17145: Qstart - column where the information from the bubbled
17146: 'questions' start
17147: Qlength - number of columns comprising a single bubble line from
17148: the sheet. (usually either 1 or 10)
17149: Qon - either a single character representing the character used
17150: to signal a bubble was chosen in the positional setup, or
17151: the string 'letter' if the letter of the chosen bubble is
17152: in the final, or 'number' if a number representing the
17153: chosen bubble is in the file (1->A 0->J)
17154: Qoff - the character used to represent that a bubble was
17155: left blank
17156: PaperID - if the scanning process generates a unique number for each
17157: sheet scanned the column that this ID number starts in
17158: PaperIDlength - number of columns that comprise the unique ID number
17159: for the sheet of paper
17160: FirstName - column that the first name starts in
17161: FirstNameLength - number of columns that the first name spans
17162: LastName - column that the last name starts in
17163: LastNameLength - number of columns that the last name spans
17164: BubblesPerRow - number of bubbles available in each row used to
17165: bubble an answer. (If not specified, 10 assumed).
17166:
17167:
17168: =item *
17169:
17170: get_scantronformat_file($cdom)
17171:
17172: $cdom - the course's domain (optional); if not supplied, uses
17173: domain for current $env{'request.course.id'}.
17174:
17175: Returns an array containing lines from the scantron format file for
17176: the domain of the course.
17177:
17178: If a url for a custom.tab file is listed in domain's configuration.db,
17179: lines are from this file.
17180:
17181: Otherwise, if a default.tab has been published in RES space by the
17182: domainconfig user, lines are from this file.
17183:
17184: Otherwise, fall back to getting lines from the legacy file on the
17185: local server: /home/httpd/lonTabs/default_scantronformat.tab
17186:
17187: =back
17188:
17189: =head2 Resource Subroutines
17190:
17191: =over 4
17192:
17193: =item *
17194:
17195: subscribe($fname) : subscribe to a resource, returns URL if possible (probably should use repcopy instead)
17196:
17197: =item *
17198:
17199: repcopy($filename) : subscribes to the requested file, and attempts to
17200: replicate from the owning library server, Might return
17201: 'unavailable', 'not_found', 'forbidden', 'ok', or
17202: 'bad_request', also attempts to grab the metadata for the
17203: resource. Expects the local filesystem pathname
17204: (/home/httpd/html/res/....)
17205:
17206: =back
17207:
17208: =head2 Resource Information
17209:
17210: =over 4
17211:
17212: =item *
17213:
17214: EXT($varname,$symb,$udom,$uname,$usection,$recurse,$cid) : evaluates
17215: and returns the value of a variety of different possible values,
17216: $varname should be a request string, and the other parameters can be
17217: used to specify who and what one is asking about. Ordinarily, $cid
17218: does not need to be specified, as it is retrived from
17219: $env{'request.course.id'}, but &Apache::lonnet::EXT() is called
17220: within lonuserstate::loadmap() when initializing a course, before
17221: $env{'request.course.id'} has been set, so it needs to be provided
17222: in that one case.
17223:
17224: Possible values for $varname are environment.lastname (or other item
17225: from the envirnment hash), user.name (or someother aspect about the
17226: user), resource.0.maxtries (or some other part and parameter of a
17227: resource)
17228:
17229: =item *
17230:
17231: directcondval($number) : get current value of a condition; reads from a state
17232: string
17233:
17234: =item *
17235:
17236: condval($condidx) : value of condition index based on state
17237:
17238: =item *
17239:
17240: metadata($uri,$what,$toolsymb,$liburi,$prefix,$depthcount) : request a
17241: resource's metadata, $what should be either a specific key, or either
17242: 'keys' (to get a list of possible keys) or 'packages' to get a list of
17243: packages that this resource currently uses, the last 3 arguments are
17244: only used internally for recursive metadata.
17245:
17246: the toolsymb is only used where the uri is for an external tool (for which
17247: the uri as well as the symb are guaranteed to be unique).
17248:
17249: this function automatically caches all requests except any made recursively
17250: to retrieve a list of metadata keys for an imported library file ($liburi is
17251: defined).
17252:
17253: =item *
17254:
17255: metadata_query($query,$custom,$customshow) : make a metadata query against the
17256: network of library servers; returns file handle of where SQL and regex results
17257: will be stored for query
17258:
17259: =item *
17260:
17261: symbread($filename,$donotrecurse,$ignorecachednull,$checkforblock,$possibles) :
17262: return symbolic list entry (all arguments optional).
17263:
17264: Args: filename is the filename (including path) for the file for which a symb
17265: is required; donotrecurse, if true will prevent calls to allowed() being made
17266: to check access status if more than one resource was found in the bighash
17267: (see rev. 1.249) to avoid an infinite loop if an ambiguous resource is part of
17268: a randompick); ignorecachednull, if true will prevent a symb of '' being
17269: returned if $env{$cache_str} is defined as ''; checkforblock if true will
17270: cause possible symbs to be checked to determine if they are subject to content
17271: blocking, if so they will not be included as possible symbs; possibles is a
17272: ref to a hash, which, as a side effect, will be populated with all possible
17273: symbs (content blocking not tested).
17274:
17275: returns the data handle
17276:
17277: =item *
17278:
17279: symbverify($symb,$thisfn,$encstate) : verifies that $symb actually exists
17280: and is a possible symb for the URL in $thisfn, and if is an encrypted
17281: resource that the user accessed using /enc/ returns a 1 on success, 0
17282: on failure, user must be in a course, as it assumes the existence of
17283: the course initial hash, and uses $env('request.course.id'}. The third
17284: arg is an optional reference to a scalar. If this arg is passed in the
17285: call to symbverify, it will be set to 1 if the symb has been set to be
17286: encrypted; otherwise it will be null.
17287:
17288: =item *
17289:
17290: symbclean($symb) : removes versions numbers from a symb, returns the
17291: cleaned symb
17292:
17293: =item *
17294:
17295: is_on_map($uri) : checks if the $uri is somewhere on the current
17296: course map, user must be in a course for it to work.
17297:
17298: =item *
17299:
17300: numval($salt) : return random seed value (addend for rndseed)
17301:
17302: =item *
17303:
17304: rndseed($symb,$courseid,$udom,$uname) : create a random sum; returns
17305: a random seed, all arguments are optional, if they aren't sent it uses the
17306: environment to derive them. Note: if symb isn't sent and it can't get one
17307: from &symbread it will use the current time as its return value
17308:
17309: =item *
17310:
17311: ireceipt($funame,$fudom,$fucourseid,$fusymb) : return unique,
17312: unfakeable, receipt
17313:
17314: =item *
17315:
17316: receipt() : API to ireceipt working off of env values; given out to users
17317:
17318: =item *
17319:
17320: countacc($url) : count the number of accesses to a given URL
17321:
17322: =item *
17323:
17324: checkout($symb,$tuname,$tudom,$tcrsid) : creates a record of a user having looked at an item, most likely printed out or otherwise using a resource
17325:
17326: =item *
17327:
17328: checkin($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 $tcrsid)
17329:
17330: =item *
17331:
17332: expirespread($uname,$udom,$stype,$usymb) : set expire date for spreadsheet
17333:
17334: =item *
17335:
17336: devalidate($symb) : devalidate temporary spreadsheet calculations,
17337: forcing spreadsheet to reevaluate the resource scores next time.
17338:
17339: =item *
17340:
17341: can_edit_resource($file,$cnum,$cdom,$resurl,$symb,$group) : determine if current user can edit a particular resource,
17342: when viewing in course context.
17343:
17344: input: six args -- filename (decluttered), course number, course domain,
17345: url, symb (if registered) and group (if this is a
17346: group item -- e.g., bulletin board, group page etc.).
17347:
17348: output: array of five scalars --
17349: $cfile -- url for file editing if editable on current server
17350: $home -- homeserver of resource (i.e., for author if published,
17351: or course if uploaded.).
17352: $switchserver -- 1 if server switch will be needed.
17353: $forceedit -- 1 if icon/link should be to go to edit mode
17354: $forceview -- 1 if icon/link should be to go to view mode
17355:
17356: =item *
17357:
17358: is_course_upload($file,$cnum,$cdom)
17359:
17360: Used in course context to determine if current file was uploaded to
17361: the course (i.e., would be found in /userfiles/docs on the course's
17362: homeserver.
17363:
17364: input: 3 args -- filename (decluttered), course number and course domain.
17365: output: boolean -- 1 if file was uploaded.
17366:
17367: =back
17368:
17369: =head2 Storing/Retreiving Data
17370:
17371: =over 4
17372:
17373: =item *
17374:
17375: store($storehash,$symb,$namespace,$udom,$uname,$laststore) : stores hash
17376: permanently for this url; hashref needs to be given and should be a \%hashname;
17377: the remaining args aren't required and if they aren't passed or are '' they will
17378: be derived from the env (with the exception of $laststore, which is an
17379: optional arg used when a user's submission is stored in grading).
17380: $laststore is $version=$timestamp, where $version is the most recent version
17381: number retrieved for the corresponding $symb in the $namespace db file, and
17382: $timestamp is the timestamp for that transaction (UNIX time).
17383: $laststore is currently only passed when cstore() is called by
17384: structuretags::finalize_storage().
17385:
17386: =item *
17387:
17388: cstore($storehash,$symb,$namespace,$udom,$uname,$laststore) : same as store
17389: but uses critical subroutine
17390:
17391: =item *
17392:
17393: restore($symb,$namespace,$udom,$uname) : returns hash for this symb;
17394: all args are optional
17395:
17396: =item *
17397:
17398: dumpstore($namespace,$udom,$uname,$regexp,$range) :
17399: dumps the complete (or key matching regexp) namespace into a hash
17400: ($udom, $uname, $regexp, $range are optional) for a namespace that is
17401: normally &store()ed into
17402:
17403: $range should be either an integer '100' (give me the first 100
17404: matching records)
17405: or be two integers sperated by a - with no spaces
17406: '30-50' (give me the 30th through the 50th matching
17407: records)
17408:
17409:
17410: =item *
17411:
17412: putstore($namespace,$symb,$version,$storehash,$udomain,$uname,$tolog) :
17413: replaces a &store() version of data with a replacement set of data
17414: for a particular resource in a namespace passed in the $storehash hash
17415: reference. If $tolog is true, the transaction is logged in the courselog
17416: with an action=PUTSTORE.
17417:
17418: =item *
17419:
17420: tmpstore($storehash,$symb,$namespace,$udom,$uname) : storage that
17421: works very similar to store/cstore, but all data is stored in a
17422: temporary location and can be reset using tmpreset, $storehash should
17423: be a hash reference, returns nothing on success
17424:
17425: =item *
17426:
17427: tmprestore($symb,$namespace,$udom,$uname) : storage that works very
17428: similar to restore, but all data is stored in a temporary location and
17429: can be reset using tmpreset. Returns a hash of values on success,
17430: error string otherwise.
17431:
17432: =item *
17433:
17434: tmpreset($symb,$namespace,$udom,$uname) : temporary storage reset,
17435: deltes all keys for $symb form the temporary storage hash.
17436:
17437: =item *
17438:
17439: get($namespace,$storearr,$udom,$uname) : returns hash with keys from array
17440: reference filled in from namesp ($udom and $uname are optional)
17441:
17442: =item *
17443:
17444: del($namespace,$storearr,$udom,$uname) : deletes keys out of array from
17445: namesp ($udom and $uname are optional)
17446:
17447: =item *
17448:
17449: dump($namespace,$udom,$uname,$regexp,$range) :
17450: dumps the complete (or key matching regexp) namespace into a hash
17451: ($udom, $uname, $regexp, $range are optional)
17452:
17453: $range should be either an integer '100' (give me the first 100
17454: matching records)
17455: or be two integers sperated by a - with no spaces
17456: '30-50' (give me the 30th through the 50th matching
17457: records)
17458: =item *
17459:
17460: inc($namespace,$store,$udom,$uname) : increments $store in $namespace.
17461: $store can be a scalar, an array reference, or if the amount to be
17462: incremented is > 1, a hash reference.
17463:
17464: ($udom and $uname are optional)
17465:
17466: =item *
17467:
17468: put($namespace,$storehash,$udom,$uname) : stores hash in namesp
17469: ($udom and $uname are optional)
17470:
17471: =item *
17472:
17473: cput($namespace,$storehash,$udom,$uname) : critical put
17474: ($udom and $uname are optional)
17475:
17476: =item *
17477:
17478: newput($namespace,$storehash,$udom,$uname) :
17479:
17480: Attempts to store the items in the $storehash, but only if they don't
17481: currently exist, if this succeeds you can be certain that you have
17482: successfully created a new key value pair in the $namespace db.
17483:
17484:
17485: Args:
17486: $namespace: name of database to store values to
17487: $storehash: hashref to store to the db
17488: $udom: (optional) domain of user containing the db
17489: $uname: (optional) name of user caontaining the db
17490:
17491: Returns:
17492: 'ok' -> succeeded in storing all keys of $storehash
17493: 'key_exists: <key>' -> failed to anything out of $storehash, as at
17494: least <key> already existed in the db (other
17495: requested keys may also already exist)
17496: 'error: <msg>' -> unable to tie the DB or other error occurred
17497: 'con_lost' -> unable to contact request server
17498: 'refused' -> action was not allowed by remote machine
17499:
17500:
17501: =item *
17502:
17503: eget($namespace,$storearr,$udom,$uname) : returns hash with keys from array
17504: reference filled in from namesp (encrypts the return communication)
17505: ($udom and $uname are optional)
17506:
17507: =item *
17508:
17509: log($udom,$name,$home,$message) : write to permanent log for user; use
17510: critical subroutine
17511:
17512: =item *
17513:
17514: get_dom($namespace,$storearr,$udom,$uhome) : returns hash with keys from
17515: array reference filled in from namespace found in domain level on either
17516: specified domain server ($uhome) or primary domain server ($udom and $uhome are optional).
17517:
17518: =item *
17519:
17520: put_dom($namespace,$storehash,$udom,$uhome) : stores hash in namespace at
17521: domain level either on specified domain server ($uhome) or primary domain
17522: server ($udom and $uhome are optional)
17523:
17524: =item *
17525:
17526: get_domain_defaults($target_domain,$ignore_cache) : returns hash with defaults
17527: for: authentication, language, quotas, timezone, date locale, and portal URL in
17528: the target domain.
17529:
17530: May also include additional key => value pairs for the following groups:
17531:
17532: =over
17533:
17534: =item
17535: disk quotas (MB allocated by default to portfolios and authoring spaces).
17536:
17537: =over
17538:
17539: =item defaultquota, authorquota
17540:
17541: =back
17542:
17543: =item
17544: tools (availability of aboutme page, blog, webDAV access for authoring spaces,
17545: portfolio for users).
17546:
17547: =over
17548:
17549: =item
17550: aboutme, blog, webdav, portfolio
17551:
17552: =back
17553:
17554: =item
17555: requestcourses: ability to request courses, and how requests are processed.
17556:
17557: =over
17558:
17559: =item
17560: official, unofficial, community, textbook, placement
17561:
17562: =back
17563:
17564: =item
17565: inststatus: types of institutional affiliation, and order in which they are displayed.
17566:
17567: =over
17568:
17569: =item
17570: inststatustypes, inststatusorder, inststatusguest
17571:
17572: =back
17573:
17574: =item
17575: coursedefaults: can PDF forms can be created, default credits for courses, default quotas (MB)
17576: for course's uploaded content.
17577:
17578: =over
17579:
17580: =item
17581: canuse_pdfforms, officialcredits, unofficialcredits, textbookcredits, officialquota, unofficialquota,
17582: communityquota, textbookquota, placementquota
17583:
17584: =back
17585:
17586: =item
17587: usersessions: set options for hosting of your users in other domains, and hosting of users from other domains
17588: on your servers.
17589:
17590: =over
17591:
17592: =item
17593: remotesessions, hostedsessions
17594:
17595: =back
17596:
17597: =back
17598:
17599: In cases where a domain coordinator has never used the "Set Domain Configuration"
17600: utility to create a configuration.db file on a domain's primary library server
17601: only the following domain defaults: auth_def, auth_arg_def, lang_def
17602: -- corresponding values are authentication type (internal, krb4, krb5,
17603: or localauth), initial password or a kerberos realm, language (e.g., en-us) --
17604: will be available. Values are retrieved from cache (if current), unless the
17605: optional $ignore_cache arg is true, or from domain's configuration.db (if available),
17606: or lastly from values in lonTabs/dns_domain,tab, or lonTabs/domain.tab.
17607:
17608: Typical usage:
17609:
17610: %domdefaults = &get_domain_defaults($target_domain);
17611:
17612: =back
17613:
17614: =head2 Network Status Functions
17615:
17616: =over 4
17617:
17618: =item *
17619:
17620: dirlist() : return directory list based on URI (first arg).
17621:
17622: Inputs: 1 required, 5 optional.
17623:
17624: =over
17625:
17626: =item
17627: $uri - path to file in filesystem (starts: /res or /userfiles/). Required.
17628:
17629: =item
17630: $userdomain - domain of user/course to be listed. Extracted from $uri if absent.
17631:
17632: =item
17633: $username - username of user/course to be listed. Extracted from $uri if absent.
17634:
17635: =item
17636: $getpropath - boolean: 1 if prepend path using &propath().
17637:
17638: =item
17639: $getuserdir - boolean: 1 if prepend path for "userfiles".
17640:
17641: =item
17642: $alternateRoot - path to prepend in place of path from $uri.
17643:
17644: =back
17645:
17646: Returns: Array of up to two items.
17647:
17648: =over
17649:
17650: a reference to an array of files/subdirectories
17651:
17652: =over
17653:
17654: Each element in the array of files/subdirectories is a & separated list of
17655: item name and the result of running stat on the item. If dirlist was requested
17656: for a file instead of a directory, the item name will be ''. For a directory
17657: listing, if the item is a metadata file, the element will end &N&M
17658: (where N amd M are either 0 or 1, corresponding to obsolete set (1), or
17659: default copyright set (1).
17660:
17661: =back
17662:
17663: a scalar containing error condition (if encountered).
17664:
17665: =over
17666:
17667: =item
17668: no_host (no homeserver identified for $username:$domain).
17669:
17670: =item
17671: no_such_host (server contacted for listing not identified as valid host).
17672:
17673: =item
17674: con_lost (connection to remote server failed).
17675:
17676: =item
17677: refused (invalid $username:$domain received on lond side).
17678:
17679: =item
17680: no_such_dir (directory at specified path on lond side does not exist).
17681:
17682: =item
17683: empty (directory at specified path on lond side is empty).
17684:
17685: =over
17686:
17687: This is currently not encountered because the &ls3, &ls2,
17688: &ls (_handler) routines on the lond side do not filter out
17689: . and .. from a directory listing.
17690:
17691: =back
17692:
17693: =back
17694:
17695: =back
17696:
17697: =item *
17698:
17699: spareserver() : find server with least workload from spare.tab
17700:
17701:
17702: =item *
17703:
17704: host_from_dns($dns) : Returns the loncapa hostname corresponding to a DNS name or undef
17705: if there is no corresponding loncapa host.
17706:
17707: =back
17708:
17709:
17710: =head2 Apache Request
17711:
17712: =over 4
17713:
17714: =item *
17715:
17716: ssi($url,%hash) : server side include, does a complete request cycle on url to
17717: localhost, posts hash
17718:
17719: =back
17720:
17721: =head2 Data to String to Data
17722:
17723: =over 4
17724:
17725: =item *
17726:
17727: hash2str(%hash) : convert a hash into a string complete with escaping and '='
17728: and '&' separators, supports elements that are arrayrefs and hashrefs
17729:
17730: =item *
17731:
17732: hashref2str($hashref) : convert a hashref into a string complete with
17733: escaping and '=' and '&' separators, supports elements that are
17734: arrayrefs and hashrefs
17735:
17736: =item *
17737:
17738: arrayref2str($arrayref) : convert an arrayref into a string complete
17739: with escaping and '&' separators, supports elements that are arrayrefs
17740: and hashrefs
17741:
17742: =item *
17743:
17744: str2hash($string) : convert string to hash using unescaping and
17745: splitting on '=' and '&', supports elements that are arrayrefs and
17746: hashrefs
17747:
17748: =item *
17749:
17750: str2array($string) : convert string to hash using unescaping and
17751: splitting on '&', supports elements that are arrayrefs and hashrefs
17752:
17753: =back
17754:
17755: =head2 Logging Routines
17756:
17757:
17758: These routines allow one to make log messages in the lonnet.log and
17759: lonnet.perm logfiles.
17760:
17761: =over 4
17762:
17763: =item *
17764:
17765: logtouch() : make sure the logfile, lonnet.log, exists
17766:
17767: =item *
17768:
17769: logthis() : append message to the normal lonnet.log file, it gets
17770: preiodically rolled over and deleted.
17771:
17772: =item *
17773:
17774: logperm() : append a permanent message to lonnet.perm.log, this log
17775: file never gets deleted by any automated portion of the system, only
17776: messages of critical importance should go in here.
17777:
17778:
17779: =back
17780:
17781: =head2 General File Helper Routines
17782:
17783: =over 4
17784:
17785: =item *
17786:
17787: getfile($file,$caller) : two cases - requests for files in /res or in /uploaded.
17788: (a) files in /uploaded
17789: (i) If a local copy of the file exists -
17790: compares modification date of local copy with last-modified date for
17791: definitive version stored on home server for course. If local copy is
17792: stale, requests a new version from the home server and stores it.
17793: If the original has been removed from the home server, then local copy
17794: is unlinked.
17795: (ii) If local copy does not exist -
17796: requests the file from the home server and stores it.
17797:
17798: If $caller is 'uploadrep':
17799: This indicates a call from lonuploadrep.pm (PerlHeaderParserHandler phase)
17800: for request for files originally uploaded via DOCS.
17801: - returns 'ok' if fresh local copy now available, -1 otherwise.
17802:
17803: Otherwise:
17804: This indicates a call from the content generation phase of the request.
17805: - returns the entire contents of the file or -1.
17806:
17807: (b) files in /res
17808: - returns the entire contents of a file or -1;
17809: it properly subscribes to and replicates the file if neccessary.
17810:
17811:
17812: =item *
17813:
17814: stat_file($url) : $url is expected to be a /res/ or /uploaded/ style file
17815: reference
17816:
17817: returns either a stat() list of data about the file or an empty list
17818: if the file doesn't exist or couldn't find out about it (connection
17819: problems or user unknown)
17820:
17821: =item *
17822:
17823: filelocation($dir,$file) : returns file system location of a file
17824: based on URI; meant to be "fairly clean" absolute reference, $dir is a
17825: directory that relative $file lookups are to looked in ($dir of /a/dir
17826: and a file of ../bob will become /a/bob)
17827:
17828: =item *
17829:
17830: hreflocation($dir,$file) : returns file system location or a URL; same as
17831: filelocation except for hrefs
17832:
17833: =item *
17834:
17835: declutter() : declutters URLs -- remove beginning slashes, 'res' etc.
17836: also removes beginning /home/httpd/html unless /priv/ follows it.
17837:
17838: =back
17839:
17840: =head2 Usererfile file routines (/uploaded*)
17841:
17842: =over 4
17843:
17844: =item *
17845:
17846: userfileupload(): main rotine for putting a file in a user or course's
17847: filespace, arguments are,
17848:
17849: formname - required - this is the name of the element in $env where the
17850: filename, and the contents of the file to create/modifed exist
17851: the filename is in $env{'form.'.$formname.'.filename'} and the
17852: contents of the file is located in $env{'form.'.$formname}
17853: context - if coursedoc, store the file in the course of the active role
17854: of the current user;
17855: if 'existingfile': store in 'overwrites' in /home/httpd/perl/tmp
17856: if 'canceloverwrite': delete file in tmp/overwrites directory
17857: subdir - required - subdirectory to put the file in under ../userfiles/
17858: if undefined, it will be placed in "unknown"
17859:
17860: (This routine calls clean_filename() to remove any dangerous
17861: characters from the filename, and then calls finuserfileupload() to
17862: complete the transaction)
17863:
17864: returns either the url of the uploaded file (/uploaded/....) if successful
17865: and /adm/notfound.html if unsuccessful
17866:
17867: =item *
17868:
17869: clean_filename(): routine for cleaing a filename up for storage in
17870: userfile space, argument is:
17871:
17872: filename - proposed filename
17873:
17874: returns: the new clean filename
17875:
17876: =item *
17877:
17878: finishuserfileupload(): routine that creates and sends the file to
17879: userspace, probably shouldn't be called directly
17880:
17881: docuname: username or courseid of destination for the file
17882: docudom: domain of user/course of destination for the file
17883: formname: same as for userfileupload()
17884: fname: filename (including subdirectories) for the file
17885: parser: if 'parse', will parse (html) file to extract references to objects, links etc.
17886: if hashref, and context is scantron, will convert csv format to standard format
17887: allfiles: reference to hash used to store objects found by parser
17888: codebase: reference to hash used for codebases of java objects found by parser
17889: thumbwidth: width (pixels) of thumbnail to be created for uploaded image
17890: thumbheight: height (pixels) of thumbnail to be created for uploaded image
17891: resizewidth: width to be used to resize image using resizeImage from ImageMagick
17892: resizeheight: height to be used to resize image using resizeImage from ImageMagick
17893: context: if 'overwrite', will move the uploaded file from its temporary location to
17894: userfiles to facilitate overwriting a previously uploaded file with same name.
17895: mimetype: reference to scalar to accommodate mime type determined
17896: from File::MMagic if $parser = parse.
17897:
17898: returns either the url of the uploaded file (/uploaded/....) if successful
17899: and /adm/notfound.html if unsuccessful (or an error message if context
17900: was 'overwrite').
17901:
17902:
17903: =item *
17904:
17905: renameuserfile(): renames an existing userfile to a new name
17906:
17907: Args:
17908: docuname: username or courseid of destination for the file
17909: docudom: domain of user/course of destination for the file
17910: old: current file name (including any subdirs under userfiles)
17911: new: desired file name (including any subdirs under userfiles)
17912:
17913: =item *
17914:
17915: mkdiruserfile(): creates a directory is a userfiles dir
17916:
17917: Args:
17918: docuname: username or courseid of destination for the file
17919: docudom: domain of user/course of destination for the file
17920: dir: dir to create (including any subdirs under userfiles)
17921:
17922: =item *
17923:
17924: removeuserfile(): removes a file that exists in userfiles
17925:
17926: Args:
17927: docuname: username or courseid of destination for the file
17928: docudom: domain of user/course of destination for the file
17929: fname: filname to delete (including any subdirs under userfiles)
17930:
17931: =item *
17932:
17933: removeuploadedurl(): convience function for removeuserfile()
17934:
17935: Args:
17936: url: a full /uploaded/... url to delete
17937:
17938: =item *
17939:
17940: get_portfile_permissions():
17941: Args:
17942: domain: domain of user or course contain the portfolio files
17943: user: name of user or num of course contain the portfolio files
17944: Returns:
17945: hashref of a dump of the proper file_permissions.db
17946:
17947:
17948: =item *
17949:
17950: get_access_controls():
17951:
17952: Args:
17953: current_permissions: the hash ref returned from get_portfile_permissions()
17954: group: (optional) the group you want the files associated with
17955: file: (optional) the file you want access info on
17956:
17957: Returns:
17958: a hash (keys are file names) of hashes containing
17959: keys are: path to file/file_name\0uniqueID:scope_end_start (see below)
17960: values are XML containing access control settings (see below)
17961:
17962: Internal notes:
17963:
17964: access controls are stored in file_permissions.db as key=value pairs.
17965: key -> path to file/file_name\0uniqueID:scope_end_start
17966: where scope -> public,guest,course,group,domains or users.
17967: end -> UNIX time for end of access (0 -> no end date)
17968: start -> UNIX time for start of access
17969:
17970: value -> XML description of access control
17971: <scope type=""> (type =1 of: public,guest,course,group,domains,users">
17972: <start></start>
17973: <end></end>
17974:
17975: <password></password> for scope type = guest
17976:
17977: <domain></domain> for scope type = course or group
17978: <number></number>
17979: <roles id="">
17980: <role></role>
17981: <access></access>
17982: <section></section>
17983: <group></group>
17984: </roles>
17985:
17986: <dom></dom> for scope type = domains
17987:
17988: <users> for scope type = users
17989: <user>
17990: <uname></uname>
17991: <udom></udom>
17992: </user>
17993: </users>
17994: </scope>
17995:
17996: Access data is also aggregated for each file in an additional key=value pair:
17997: key -> path to file/file_name\0accesscontrol
17998: value -> reference to hash
17999: hash contains key = value pairs
18000: where key = uniqueID:scope_end_start
18001: value = UNIX time record was last updated
18002:
18003: Used to improve speed of look-ups of access controls for each file.
18004:
18005: Locks on files (resulting from submission of portfolio file to a homework problem stored in array of arrays.
18006:
18007: =item *
18008:
18009: modify_access_controls():
18010:
18011: Modifies access controls for a portfolio file
18012: Args
18013: 1. file name
18014: 2. reference to hash of required changes,
18015: 3. domain
18016: 4. username
18017: where domain,username are the domain of the portfolio owner
18018: (either a user or a course)
18019:
18020: Returns:
18021: 1. result of additions or updates ('ok' or 'error', with error message).
18022: 2. result of deletions ('ok' or 'error', with error message).
18023: 3. reference to hash of any new or updated access controls.
18024: 4. reference to hash used to map incoming IDs to uniqueIDs assigned to control.
18025: key = integer (inbound ID)
18026: value = uniqueID
18027:
18028: =item *
18029:
18030: get_timebased_id():
18031:
18032: Attempts to get a unique timestamp-based suffix for use with items added to a
18033: course via the Course Editor (e.g., folders, composite pages,
18034: group bulletin boards).
18035:
18036: Args: (first three required; six others optional)
18037:
18038: 1. prefix (alphanumeric): of keys in hash, e.g., suppsequence, docspage,
18039: docssequence, or name of group
18040:
18041: 2. keyid (alphanumeric): name of temporary locking key in hash,
18042: e.g., num, boardids
18043:
18044: 3. namespace: name of gdbm file used to store suffixes already assigned;
18045: file will be named nohist_namespace.db
18046:
18047: 4. cdom: domain of course; default is current course domain from %env
18048:
18049: 5. cnum: course number; default is current course number from %env
18050:
18051: 6. idtype: set to concat if an additional digit is to be appended to the
18052: unix timestamp to form the suffix, if the plain timestamp is already
18053: in use. Default is to not do this, but simply increment the unix
18054: timestamp by 1 until a unique key is obtained.
18055:
18056: 7. who: holder of locking key; defaults to user:domain for user.
18057:
18058: 8. locktries: number of attempts to obtain a lock (sleep of 1s before
18059: retrying); default is 3.
18060:
18061: 9. maxtries: number of attempts to obtain a unique suffix; default is 20.
18062:
18063: Returns:
18064:
18065: 1. suffix obtained (numeric)
18066:
18067: 2. result of deleting locking key (ok if deleted, or lock never obtained)
18068:
18069: 3. error: contains (localized) error message if an error occurred.
18070:
18071:
18072: =back
18073:
18074: =head2 HTTP Helper Routines
18075:
18076: =over 4
18077:
18078: =item *
18079:
18080: escape() : unpack non-word characters into CGI-compatible hex codes
18081:
18082: =item *
18083:
18084: unescape() : pack CGI-compatible hex codes into actual non-word ASCII character
18085:
18086: =back
18087:
18088: =head1 PRIVATE SUBROUTINES
18089:
18090: =head2 Underlying communication routines (Shouldn't call)
18091:
18092: =over 4
18093:
18094: =item *
18095:
18096: subreply() : tries to pass a message to lonc, returns con_lost if incapable
18097:
18098: =item *
18099:
18100: reply() : uses subreply to send a message to remote machine, logs all failures
18101:
18102: =item *
18103:
18104: critical() : passes a critical message to another server; if cannot
18105: get through then place message in connection buffer directory and
18106: returns con_delayed, if incapable of saving message, returns
18107: con_failed
18108:
18109: =item *
18110:
18111: reconlonc() : tries to reconnect lonc client processes.
18112:
18113: =back
18114:
18115: =head2 Resource Access Logging
18116:
18117: =over 4
18118:
18119: =item *
18120:
18121: flushcourselogs() : flush (save) buffer logs and access logs
18122:
18123: =item *
18124:
18125: courselog($what) : save message for course in hash
18126:
18127: =item *
18128:
18129: courseacclog($what) : save message for course using &courselog(). Perform
18130: special processing for specific resource types (problems, exams, quizzes, etc).
18131:
18132: =item *
18133:
18134: goodbye() : flush course logs and log shutting down; it is called in srm.conf
18135: as a PerlChildExitHandler
18136:
18137: =back
18138:
18139: =head2 Other
18140:
18141: =over 4
18142:
18143: =item *
18144:
18145: symblist($mapname,%newhash) : update symbolic storage links
18146:
18147: =back
18148:
18149: =cut
18150:
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